update changelog to reflect new image

Fixed typo

.dockerignore

@@ -0,0 +1,6 @@
+.git
+.gitignore
+.idea
+**/*.pyc
+**/*.swp
+black-env

.gitignore

@@ -1,3 +1,5 @@
-*.pyc
-*.swp
+**/*.pyc
+**/*.swp
 tags
+.idea
+packages

CHANGELOG.md

@@ -0,0 +1,115 @@
+**2020-02-08**
+- Compression, resampling and filtering in the frontend have been rewritten in javascript, sdr.js has been removed
+- Decoding of Pocsag modulation is now possible
+- Removed the 3D waterfall since it had no real application and required ~1MB of javascript code to be downloaded
+- Improved the frontend handling of the "too many users" scenario
+- PSK63 digimode is now available (same decoding pipeline as PSK31, but with adopted parameters)
+- The frequency can now be manipulated with the mousewheel, which should allow the user to tune more precise. The tuning
+  step size is determined by the digit the mouse cursor is hovering over.
+- Clicking on the frequency now opens an input for direct frequency selection
+- URL hashes have been fixed and improved: They are now updated automatically, so a shared URL will include frequency
+  and demodulator, which allows for improved sharing and linking.
+- New daylight scheduler for background decoding, allows profiles to be selected by local sunrise / sunset times
+- New devices supported:
+  - LimeSDR (`"type": "lime_sdr"`)
+  - PlutoSDR (`"type": "pluto_sdr"`)
+  - RTL_SDR via Soapy (`"type": "rtl_sdr_soapy"`) on special request to allow use of the direct sampling mode
+
+**2020-01-04**
+- The [owrx_connector](https://github.com/jketterl/owrx_connector) is now the default way of communicating with sdr
+  devices. The old sdr types have been replaced, all `_connector` suffixes on the type must be removed!
+- The sources have been refactored, making it a lot easier to add support for other devices
+- SDR device failure handling has been improved, including user feedback
+- New devices supported:
+  - FiFiSDR (`"type": "fifi_sdr"`)
+
+**2019-12-15**
+- wsjt-x updated to 2.1.2
+- The rtl_tcp compatibility mode of the owrx_connector is now configurable using the `rtltcp_compat` flag
+
+**2019-12-10**
+- added support for airspyhf devices (Airspy HF+ / Discovery)
+
+**2019-12-05**
+- explicit device filter for soapy devices for multi-device setups
+
+**2019-12-03**
+- compatibility fixes for safari browsers (ios and mac)
+
+**2019-11-24**
+- There is now a new way to interface with SDR hardware, .
+  They talk directly to the hardware (no rtl_sdr / rx_sdr necessary) and offer I/Q data on a socket, just like nmux
+  did before. They additionally offer a control socket that allows openwebrx to control the SDR parameters directly,
+  without the need for repeated restarts. This allows for quicker profile changes, and also reduces the risk of your
+  SDR hardware from failing during the switchover. See `config_webrx.py` for further information and instructions.
+- Offset tuning using the `lfo_offset` has been reworked in a way that `center_freq` has to be set to the frequency you
+  actually want to listen to. If you're using an `lfo_offset` already, you will probably need to change its sign.
+- `initial_squelch_level` can now be set on each profile.
+- As usual, plenty of fixes and improvements.
+
+**2019-10-27**
+- Part of the frontend code has been reworked
+  - Audio buffer minimums have been completely stripped. As a result, you should get better latency. Unfortunately,
+    this also means there will be some skipping when audio starts.
+  - Now also supports AudioWorklets (for those browser that have it). The Raspberry Pi image has been updated to include
+    https due to the SecureContext requirement.
+  - Mousewheel controls for the receiver sliders
+- Error handling for failed SDR devices
+
+**2019-09-29**
+- One of the most-requested features is finally coming to OpenWebRX: Bookmarks (sometimes also referred to as labels).
+  There's two kinds of bookmarks available:
+  - Serverside bookmarks that are set up by the receiver administrator. Check the file `bookmarks.json` for examples!
+  - Clientside bookmarks which every user can store for themselves. They are stored in the browser's localStorage.
+- Some more bugs in the websocket handling have been fixed.
+
+**2019-09-25**
+- Automatic reporting of spots to [pskreporter](https://pskreporter.info/) is now possible. Please have a look at the
+  configuration on how to set it up.
+- Websocket communication has been overhauled in large parts. It should now be more reliable, and failing connections
+  should now have no impact on other users.
+- Profile scheduling allows to set up band-hopping if you are running background services.
+- APRS now has the ability to show symbols on the map, if a corresponding symbol set has been installed. Check the
+  config!
+- Debug logging has been disabled in a handful of modules, expect vastly reduced output on the shell.
+
+**2019-09-13**
+- New set of APRS-related features
+  - Decode Packet transmissions using [direwolf](https://github.com/wb2osz/direwolf) (1k2 only for now)
+  - APRS packets are mostly decoded and shown both in a new panel and on the map
+  - APRS is also available as a background service
+  - direwolfs I-gate functionality can be enabled, which allows your receiver to work as a receive-only I-gate for the
+    APRS network in the background
+- Demodulation for background services has been optimized to use less total bandwidth, saving CPU
+- More metrics have been added; they can be used together with collectd and its curl_json plugin for now, with some
+  limitations.
+
+**2019-07-21**
+- Latest Features:
+  - More WSJT-X modes have been added, including the new FT4 mode
+  - I started adding a bandplan feature, the first thing visible is the "dial" indicator that brings you right to the
+    dial frequency for digital modes
+  - fixed some bugs in the websocket communication which broke the map
+
+**2019-07-13**
+- Latest Features:
+  - FT8 Integration (using wsjt-x demodulators)
+  - New Map Feature that shows both decoded grid squares from FT8 and Locations decoded from YSF digital voice
+  - New Feature report that will show what functionality is available
+- There's a new Raspbian SD Card image available (see below)
+
+**2019-06-30**
+- I have done some major rework on the openwebrx core, and I am planning to continue adding more features in the near
+  future. Please check this place for updates.
+- My work has not been accepted into the upstream repository, so you will need to chose between my fork and the official
+  version.
+- I have enabled the issue tracker on this project, so feel free to file bugs or suggest enhancements there!
+- This version sports the following new and amazing features:
+  - Support of multiple SDR devices simultaneously
+  - Support for multiple profiles per SDR that allow the user to listen to different frequencies
+  - Support for digital voice decoding
+  - Feature detection that will disable functionality when dependencies are not available (if you're missing the digital
+    buttons, this is probably why)
+- Raspbian SD Card Images and Docker builds available (see below)
+- I am currently working on the feature set for a stable release, but you are more than welcome to test development
+  versions!

CONTRIBUTING.md

@@ -1,15 +0,0 @@
-First of all, thank you for taking the time to contribute to this project!
-
-Before I can accept your contributions, I need a signed copy of the Individual Contributor License Agreement (ICLA) from you, which is available <a href="ICLA.txt">here</a>.
-
-The ICLA is needed because it will allow me to dual license the OpenWebRX project under AGPL and a commercial license.
-I will also apply dual licensing to csdr, but only those parts that are original work (e.g. without the parts enabled by `-DUSE_IMA_ADPCM`; code taken from other projects is clearly separable).
-
-However, even if there is commercial interest in the projects, I promise to keep them as open as possible, keeping my original intention to provide an open-source web-based SDR receiver software to the amateur radio operators and SDR enthusiasts.
-
-This contributor agreement is based on the one of Apache Software Foundation, with some modifications. (You can review differences <a href="https://gist.github.com/ha7ilm/9e981006d24659e336c7/revisions">here</a>).
-When you contribute for the first time, I will send you the ICLA. Replying with only the information requested and the text "I Agree" is sufficient.
-
-Thanks,
-
-Andras, HA7ILM

CONTRIBUTORS

@@ -1,5 +0,0 @@
-This is a list of the great people who contributed code to the OpenWebRX repository. (Names are sorted alphabetically.)
-
-Gnoxter <gnoxter@linuxlounge.net>
-John Seamons, ZL/KF6VO <jks@jks.com>
-

ICLA.txt

@@ -1,128 +0,0 @@
-     Individual Contributor License Agreement ("Agreement")
-
-In order to clarify the intellectual property license granted 
-with Contributions from any person or entity, Retzler András
-(hereinafter referred to as "Project Owner") must have a 
-Contributor License Agreement ("CLA") on file that has
-been signed by each Contributor, indicating agreement to the license
-terms below. This license is for your protection as a Contributor as
-well as the protection of the Project Owner; it does not change your 
-rights to use your own Contributions for any other purpose.
-Please read this document carefully before signing and keep a copy 
-for your records.
-
-  Full name: ______________________________________________________
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-  (optional) Public name: _________________________________________
-
-  Mailing Address: ________________________________________________
-
-                   ________________________________________________
-
-  Country:   ______________________________________________________
-
-  (optional) Telephone: ___________________________________________
-
-  E-Mail:    ______________________________________________________
-
-You accept and agree to the following terms and conditions for Your
-present and future Contributions submitted to the Project Owner.
-
-Except for the license granted herein to the Project Owner and recipients 
-of software distributed by the Project Owner, You reserve all right, title,
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-
-1. Definitions.
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-   "You" (or "Your") shall mean the copyright owner or legal entity
-   authorized by the copyright owner that is making this Agreement
-   with the Project Owner. For legal entities, the entity making a
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-   by, or are under common control with that entity are considered to
-   be a single Contributor. For the purposes of this definition,
-   "control" means (i) the power, direct or indirect, to cause the
-   direction or management of such entity, whether by contract or
-   otherwise, or (ii) ownership of fifty percent (50%) or more of the
-   outstanding shares, or (iii) beneficial ownership of such entity.
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-   "Contribution" shall mean any original work of authorship,
-   including any modifications or additions to an existing work, that
-   is intentionally submitted by You to the Project Owner for inclusion
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-Text derived from the Apache Individual Contributor License Agreement
-("Agreement") V2.0, available at http://apache.org/licenses/icla.txt

README.md

@@ -1,94 +1,76 @@
-# OpenWebRX
+OpenWebRX
+=========
 
 OpenWebRX is a multi-user SDR receiver software with a web interface.
 
-----
-
-### ⚠️ From 2019-12-29 OpenWebRX development is discontinued. ⚠️
-
-I'm would like to say a big thanks to everyone who supported me during this project, including those who contributed either code or donations. It has been a very fruitful 6 years, but now it's time to move on to other projects. See also my [blog](https://blog.sdr.hu) about that.  
-
-(@simonyiszk, please keep this GitHub repo for historic purposes.)
-
-Know limitations of the last version:
-
-- Python 2.7, a main dependency of the project, will be not be officially maintained from 1 January 2020. By time, probably it will not be secure to use this version on public servers, unless someone still provides security patches for Python 2. 
-- Some specific parts of the DSP code could be improved for better SNR.
-
-Even though these limitations are probably acceptable in an amateur radio project, I would not build critical infrastructure on it.  
-
-For commercial inquiries (e.g. if someone wants me to develop an improved version without these limitations), I'm still open, [drop me an e-mail](mailto:randras@sdr.hu).
-
-----
-
-[:floppy_disk: Setup guide for Ubuntu](http://blog.sdr.hu/2015/06/30/quick-setup-openwebrx.html)  |  [:blue_book: Knowledge base on the Wiki](https://github.com/simonyiszk/openwebrx/wiki/)  |  [:earth_americas: Receivers on SDR.hu](http://sdr.hu/) 
-
 ![OpenWebRX](http://blog.sdr.hu/images/openwebrx/screenshot.png)
 
 It has the following features:
 
-- <a href="https://github.com/simonyiszk/csdr">csdr</a> based demodulators (AM/FM/SSB/CW/BPSK31),
-- filter passband can be set from GUI,
-- waterfall display can be shifted back in time,
-- it extensively uses HTML5 features like WebSocket, Web Audio API, and &lt;canvas&gt;,
-- it works in Google Chrome, Chromium (above version 37) and Mozilla Firefox (above version 28),
-- currently supports RTL-SDR, HackRF, SDRplay, AirSpy and many other devices, see the <a href="https://github.com/simonyiszk/openwebrx/wiki/">OpenWebRX Wiki</a>,
-- it has a 3D waterfall display:
-
-![OpenWebRX 3D waterfall](http://blog.sdr.hu/images/openwebrx/screenshot-3d.gif)
-
-**News (2015-08-18)**
-- My BSc. thesis written on OpenWebRX is <a href="https://sdr.hu/static/bsc-thesis.pdf">available here.</a>
-- Several bugs were fixed to improve reliability and stability.
-- OpenWebRX now supports compression of audio and waterfall stream, so the required network uplink bandwidth has been decreased from 2 Mbit/s to about 200 kbit/s per client! (Measured with the default settings. It is also dependent on `fft_size`.)
-- OpenWebRX now uses <a href="https://github.com/simonyiszk/csdr#sdrjs">sdr.js</a> (*libcsdr* compiled to JavaScript) for some client-side DSP tasks. 
-- Receivers can now be listed on <a href="http://sdr.hu/">SDR.hu</a>.
-- License for OpenWebRX is now Affero GPL v3. 
-
-**News (2016-02-14)**
-- The DDC in *csdr* has been manually optimized for ARM NEON, so it runs around 3 times faster on the Raspberry Pi 2 than before. 
-- Also we use *ncat* instead of *rtl_mus*, and it is 3 times faster in some cases.
-- OpenWebRX now supports URLs like: `http://localhost:8073/#freq=145555000,mod=usb`
-- UI improvements were made, thanks to John Seamons and Gnoxter.
-
-**News (2017-04-04)**
-- *ncat* has been replaced with a custom implementation called *nmux* due to a bug that caused regular crashes on some machines. The *nmux* tool is part of the *csdr* package.
-- Most consumer SDR devices are supported via <a href="https://github.com/rxseger/rx_tools">rx_tools</a>, see the <a href="https://github.com/simonyiszk/openwebrx/wiki/Using-rx_tools-with-OpenWebRX">OpenWebRX Wiki</a> on that.
-
-**News (2017-07-12)**
-- OpenWebRX now has a BPSK31 demodulator and a 3D waterfall display.
-
-> When upgrading OpenWebRX, please make sure that you also upgrade *csdr*!
-
-## OpenWebRX servers on SDR.hu
-
-[SDR.hu](http://sdr.hu) is a site which lists the active, public OpenWebRX servers. Your receiver [can also be part of it](http://sdr.hu/openwebrx), if you want.
-
-![sdr.hu](http://blog.sdr.hu/images/openwebrx/screenshot-sdrhu.png)
+- [csdr](https://github.com/jketterl/csdr) based demodulators (AM/FM/SSB/CW/BPSK31/BPSK63)
+- filter passband can be set from GUI
+- it extensively uses HTML5 features like WebSocket, Web Audio API, and Canvas
+- it works in Google Chrome, Chromium and Mozilla Firefox
+- currently supports RTL-SDR, HackRF, SDRplay, AirSpy, LimeSDR, PlutoSDR
+- Multiple SDR devices can be used simultaneously
+- [digiham](https://github.com/jketterl/digiham) based demodularors (DMR, YSF, Pocsag)
+- [dsd](https://github.com/f4exb/dsdcc) based demodulators (D-Star, NXDN)
+- [wsjt-x](https://physics.princeton.edu/pulsar/k1jt/wsjtx.html) based demodulators (FT8, FT4, WSPR, JT65, JT9)
 
 ## Setup
 
-OpenWebRX currently requires Linux and python 2.7 to run. 
+### Raspberry Pi SD Card Images
+
+Probably the quickest way to get started is to download the latest Raspberry Pi SD Card Image. It contains all the
+depencencies out of the box, and should work on all Raspberry Pis. It is based off the Raspbian Lite distribution,
+so [their installation instructions](https://www.raspberrypi.org/documentation/installation/installing-images/) apply.
+
+You can find the latest images [here](https://s3.eu-central-1.amazonaws.com/de.dd5jfk.openwebrx/index.html). You can
+also checkout the `nightly` folder, which has the most recent builds, albeit untested.
+
+Once you have booted a Raspberry with the SD Card, it will appear in your network with the hostname "openwebrx", which
+should make it available as https://openwebrx/ on most networks. This may vary depending on your specific setup.
+
+For Digital voice, the minimum requirement right now seems to be a Rasbperry Pi 3B+. I would like to work on optimizing
+this for lower specs, but at this point I am not sure how much can be done. 
+
+### Docker Images
+
+For those familiar with docker, I am providing
+[recent builds and Releases for both x86 and arm processors on the Docker hub](https://hub.docker.com/r/jketterl/openwebrx).
+You can find a short introduction there.
+
+### Manual Installation
+
+OpenWebRX currently requires Linux and python >= 3.6 to run. 
 
 First you will need to install the dependencies:
 
-- <a href="https://github.com/simonyiszk/csdr">libcsdr</a>
-- <a href="http://sdr.osmocom.org/trac/wiki/rtl-sdr">rtl-sdr</a>
+- [csdr](https://github.com/jketterl/csdr)
+- [rtl-sdr](http://sdr.osmocom.org/trac/wiki/rtl-sdr)
+- [owrx_connector](https://github.com/jketterl/owrx_connector)
+
+Optional dependencies if you want to be able to listen do digital voice:
+
+- [digiham](https://github.com/jketterl/digiham)
+- [dsd](https://github.com/f4exb/dsdcc)
+
+Optional dependency if you want to decode WSJT-X modes:
+
+- [wsjt-x](https://physics.princeton.edu/pulsar/k1jt/wsjtx.html)
+
+[Detailed installation instructions in the Wiki](https://github.com/jketterl/openwebrx/wiki/Manual-Package-installation-(including-digital-voice))
 
 After cloning this repository and connecting an RTL-SDR dongle to your computer, you can run the server:
 
-	python openwebrx.py
+	./openwebrx.py
 	
 You can now open the GUI at <a href="http://localhost:8073">http://localhost:8073</a>.
 
-Please note that the server is also listening on the following ports (on localhost only):
-
-- port 4951 for the multi-user I/Q server.
-
 Now the next step is to customize the parameters of your server in `config_webrx.py`.
 
 Actually, if you do something cool with OpenWebRX, please drop me a mail:  
-*Andras Retzler, HA7ILM &lt;randras@sdr.hu&gt;*
+*Jakob Ketterl, DD5JFK &lt;dd5jfk@darc.de&gt;*
 
 ## Usage tips
 
@@ -98,16 +80,10 @@ The filter envelope can be dragged at its ends and moved around to set the passb
 
 However, if you hold down the shift key, you can drag the center line (BFO) or the whole passband (PBS).
 
-## Setup tips
-
-If you have any problems installing OpenWebRX, you should check out the <a href="https://github.com/simonyiszk/openwebrx/wiki">Wiki</a> about it, which has a page on the <a href="https://github.com/simonyiszk/openwebrx/wiki/Common-problems-and-their-solutions">common problems and their solutions</a>.
-
-Sometimes the actual error message is not at the end of the terminal output, you may have to look at the whole output to find it.
-
-If you want to run OpenWebRX on a remote server instead of *localhost*, do not forget to set *server_hostname* in `config_webrx.py`.
-
 ## Licensing
 
-OpenWebRX is available under Affero GPL v3 license (<a href="https://tldrlegal.com/license/gnu-affero-general-public-license-v3-(agpl-3.0)">summary</a>).
+OpenWebRX is available under Affero GPL v3 license
+([summary](https://tldrlegal.com/license/gnu-affero-general-public-license-v3-(agpl-3.0)).
 
-OpenWebRX is also available under a commercial license on request. Please contact me at the address *&lt;randras@sdr.hu&gt;* for licensing options. 
+OpenWebRX is also available under a commercial license on request. Please contact me at the address
+*&lt;randras@sdr.hu&gt;* for licensing options. 

bands.json

@@ -0,0 +1,193 @@
+[
+  {
+    "name": "160m",
+    "lower_bound": 1810000,
+    "upper_bound": 2000000,
+    "frequencies": {
+      "psk31": 1838000,
+      "ft8": 1840000,
+      "wspr": 1836600,
+      "jt65": 1838000,
+      "jt9": 1839000
+    }
+  },
+  {
+    "name": "80m",
+    "lower_bound": 3500000,
+    "upper_bound": 3800000,
+    "frequencies": {
+      "psk31": 3580000,
+      "ft8": 3573000,
+      "wspr": 3592600,
+      "jt65": 3570000,
+      "jt9": 3572000,
+      "ft4": [3568000, 3575000]
+    }
+  },
+  {
+    "name": "60m",
+    "lower_bound": 5351500,
+    "upper_bound": 5366500,
+    "frequencies": {
+      "ft8": 5357000,
+      "wspr": 5364700
+    }
+  },
+  {
+    "name": "40m",
+    "lower_bound": 7000000,
+    "upper_bound": 7200000,
+    "frequencies": {
+      "psk31": 7040000,
+      "ft8": 7074000,
+      "wspr": 7038600,
+      "jt65": 7076000,
+      "jt9": 7078000,
+      "ft4": 7047500
+    }
+  },
+  {
+    "name": "30m",
+    "lower_bound": 10100000,
+    "upper_bound": 10150000,
+    "frequencies": {
+      "psk31": 10141000,
+      "ft8": 10136000,
+      "wspr": 10138700,
+      "jt65": 10138000,
+      "jt9": 10140000,
+      "ft4": 10140000
+    }
+  },
+  {
+    "name": "20m",
+    "lower_bound": 14000000,
+    "upper_bound": 14350000,
+    "frequencies": {
+      "psk31": 14070000,
+      "ft8": 14074000,
+      "wspr": 14095600,
+      "jt65": 14076000,
+      "jt9": 14078000,
+      "ft4": 14080000
+    }
+  },
+  {
+    "name": "17m",
+    "lower_bound": 18068000,
+    "upper_bound": 18168000,
+    "frequencies": {
+      "psk31": 18098000,
+      "ft8": 18100000,
+      "wspr": 18104600,
+      "jt65": 18102000,
+      "jt9": 18104000,
+      "ft4": 18104000
+    }
+  },
+  {
+    "name": "15m",
+    "lower_bound": 21000000,
+    "upper_bound": 21450000,
+    "frequencies": {
+      "psk31": 21070000,
+      "ft8": 21074000,
+      "wspr": 21094600,
+      "jt65": 21076000,
+      "jt9": 21078000,
+      "ft4": 21140000
+    }
+  },
+  {
+    "name": "12m",
+    "lower_bound": 24890000,
+    "upper_bound": 24990000,
+    "frequencies": {
+      "psk31": 24920000,
+      "ft8": 24915000,
+      "wspr": 24924600,
+      "jt65": 24917000,
+      "jt9": 24919000,
+      "ft4": 24919000
+    }
+  },
+  {
+    "name": "10m",
+    "lower_bound": 28000000,
+    "upper_bound": 29700000,
+    "frequencies": {
+      "psk31": [28070000, 28120000],
+      "ft8": 28074000,
+      "wspr": 28124600,
+      "jt65": 28076000,
+      "jt9": 28078000,
+      "ft4": 28180000
+    }
+  },
+  {
+    "name": "6m",
+    "lower_bound": 50030000,
+    "upper_bound": 51000000,
+    "frequencies": {
+      "psk31": 50305000,
+      "ft8": 50313000,
+      "wspr": 50293000,
+      "jt65": 50310000,
+      "jt9": 50312000,
+      "ft4": 50318000
+    }
+  },
+  {
+    "name": "4m",
+    "lower_bound": 70150000,
+    "upper_bound": 70200000,
+    "frequencies": {
+      "wspr": 70091000
+    }
+  },
+  {
+    "name": "2m",
+    "lower_bound": 144000000,
+    "upper_bound": 146000000,
+    "frequencies": {
+      "wspr": 144489000,
+      "ft8": 144174000,
+      "ft4": 144170000,
+      "jt65": 144120000,
+      "packet": 144800000
+    }
+  },
+  {
+    "name": "70cm",
+    "lower_bound": 430000000,
+    "upper_bound": 440000000,
+    "frequencies": {
+      "pocsag": 439987500
+    }
+  },
+  {
+    "name": "23cm",
+    "lower_bound": 1240000000,
+    "upper_bound": 1300000000
+  },
+  {
+    "name": "13cm",
+    "lower_bound": 2320000000,
+    "upper_bound": 2450000000
+  },
+  {
+    "name": "9cm",
+    "lower_bound": 3400000000,
+    "upper_bound": 3475000000
+  },
+  {
+    "name": "6cm",
+    "lower_bound": 5650000000,
+    "upper_bound": 5850000000
+  },
+  {
+    "name": "3cm",
+    "lower_bound": 10000000000,
+    "upper_bound": 10500000000
+  }
+]

bookmarks.json

@@ -0,0 +1,217 @@
+[
+  {
+    "name": "DB0ZU",
+    "frequency": 145725000,
+    "modulation": "nfm"
+  },
+  {
+    "name": "DB0ZM",
+    "frequency": 145750000,
+    "modulation": "nfm"
+  },
+  {
+    "name": "DM0ULR",
+    "frequency": 145787500,
+    "modulation": "nfm"
+  },
+  {
+    "name": "DB0EL",
+    "frequency": 439275000,
+    "modulation": "nfm"
+  },
+  {
+    "name": "DB0NJ",
+    "frequency": 438775000,
+    "modulation": "nfm"
+  },
+  {
+    "name": "DB0NJ",
+    "frequency": 439437500,
+    "modulation": "dmr"
+  },
+  {
+    "name": "DB0UFO",
+    "frequency": 438312500,
+    "modulation": "dmr"
+  },
+  {
+    "name": "DB0PV",
+    "frequency": 438525000,
+    "modulation": "ysf"
+  },
+  {
+    "name": "DB0BZA",
+    "frequency": 438412500,
+    "modulation": "ysf"
+  },
+  {
+    "name": "DB0OSH",
+    "frequency": 438250000,
+    "modulation": "ysf"
+  },
+  {
+    "name": "DB0ULR",
+    "frequency": 439325000,
+    "modulation": "nfm"
+  },
+  {
+    "name": "DB0ZU",
+    "frequency": 438850000,
+    "modulation": "nfm"
+  },
+  {
+    "name": "DB0ISW",
+    "frequency": 438650000,
+    "modulation": "nfm"
+  },
+  {
+    "name": "Radio DARC",
+    "frequency": 6070000,
+    "modulation": "am"
+  },
+  {
+    "name": "DB0TVM",
+    "frequency": 439575000,
+    "modulation": "dstar"
+  },
+  {
+    "name": "DB0TVM",
+    "frequency": 439800000,
+    "modulation": "dmr"
+  },
+  {
+    "name": "DB0TR",
+    "frequency": 438700000,
+    "modulation": "nfm"
+  },
+  {
+    "name": "DB0PME",
+    "frequency": 439825000,
+    "modulation": "dmr"
+  },
+  {
+    "name": "DB0HKN",
+    "frequency": 438300000,
+    "modulation": "dmr"
+  },
+  {
+    "name": "OE2XHM",
+    "frequency": 438825000,
+    "modulation": "nfm"
+  },
+  {
+    "name": "DM0WW",
+    "frequency": 438962500,
+    "modulation": "dmr"
+  },
+  {
+    "name": "OE7XXR",
+    "frequency": 438200000,
+    "modulation": "dstar"
+  },
+  {
+    "name": "OE2XZR",
+    "frequency": 439000000,
+    "modulation": "dstar"
+  },
+  {
+    "name": "DB0OAL",
+    "frequency": 439912500,
+    "modulation": "dmr"
+  },
+  {
+    "name": "DB0AAT",
+    "frequency": 439550000,
+    "modulation": "dmr"
+  },
+  {
+    "name": "DB0FSG",
+    "frequency": 439937500,
+    "modulation": "dmr"
+  },
+  {
+    "name": "DB0ULR",
+    "frequency": 145575000,
+    "modulation": "nfm"
+  },
+  {
+    "name": "DB0RDH",
+    "frequency": 145737500,
+    "modulation": "dstar"
+  },
+  {
+    "name": "DM0GAP",
+    "frequency": 145612500,
+    "modulation": "nfm"
+  },
+  {
+    "name": "DB0XF",
+    "frequency": 145600000,
+    "modulation": "nfm"
+  },
+  {
+    "name": "DB0TOL",
+    "frequency": 145712500,
+    "modulation": "nfm"
+  },
+  {
+    "name": "DB0TTB",
+    "frequency": 439587500,
+    "modulation": "dmr"
+  },
+  {
+    "name": "DB0TRS",
+    "frequency": 439125000,
+    "modulation": "nfm"
+  },
+  {
+    "name": "DB0OAL",
+    "frequency": 438937500,
+    "modulation": "nfm"
+  },
+  {
+    "name": "DM0ULR",
+    "frequency": 439337500,
+    "modulation": "nxdn"
+  },
+  {
+    "name": "DB0MIR",
+    "frequency": 439300000,
+    "modulation": "nfm"
+  },
+  {
+    "name": "DB0PM",
+    "frequency": 439075000,
+    "modulation": "nfm"
+  },
+  {
+    "name": "DB0CP",
+    "frequency": 439025000,
+    "modulation": "nfm"
+  },
+  {
+    "name": "OE7XGR",
+    "frequency": 438925000,
+    "modulation": "dmr"
+  },
+  {
+    "name": "DB0TOL",
+    "frequency": 438725000,
+    "modulation": "nfm"
+  },
+  {
+    "name": "DB0OAL",
+    "frequency": 438325000,
+    "modulation": "dstar"
+  },
+  {
+    "name": "DB0ROL",
+    "frequency": 439237500,
+    "modulation": "nfm"
+  },
+  {
+    "name": "DB0ABX",
+    "frequency": 439137500,
+    "modulation": "nfm"
+  }
+]

build.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+set -euxo pipefail
+
+ARCH=$(uname -m)
+
+TAG="latest"
+ARCHTAG="$TAG-$ARCH"
+
+docker build --pull -t openwebrx-base:$ARCHTAG -f docker/Dockerfiles/Dockerfile-base .
+docker build --build-arg ARCHTAG=$ARCHTAG -t jketterl/openwebrx-rtlsdr:$ARCHTAG -f docker/Dockerfiles/Dockerfile-rtlsdr .
+docker build --build-arg ARCHTAG=$ARCHTAG -t openwebrx-soapysdr-base:$ARCHTAG -f docker/Dockerfiles/Dockerfile-soapysdr .
+docker build --build-arg ARCHTAG=$ARCHTAG -t jketterl/openwebrx-sdrplay:$ARCHTAG -f docker/Dockerfiles/Dockerfile-sdrplay .
+docker build --build-arg ARCHTAG=$ARCHTAG -t jketterl/openwebrx-hackrf:$ARCHTAG -f docker/Dockerfiles/Dockerfile-hackrf .
+docker build --build-arg ARCHTAG=$ARCHTAG -t jketterl/openwebrx-airspy:$ARCHTAG -f docker/Dockerfiles/Dockerfile-airspy .
+docker build --build-arg ARCHTAG=$ARCHTAG -t jketterl/openwebrx-rtlsdr-soapy:$ARCHTAG -f docker/Dockerfiles/Dockerfile-rtlsdr-soapy .
+docker build --build-arg ARCHTAG=$ARCHTAG -t jketterl/openwebrx-full:$ARCHTAG -t jketterl/openwebrx:$ARCHTAG -f docker/Dockerfiles/Dockerfile-full .

config_webrx.py

@@ -6,6 +6,7 @@ config_webrx: configuration options for OpenWebRX
     This file is part of OpenWebRX,
     an open-source SDR receiver software with a web UI.
     Copyright (c) 2013-2015 by Andras Retzler <randras@sdr.hu>
+    Copyright (c) 2019-2020 by Jakob Ketterl <dd5jfk@darc.de>
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU Affero General Public License as
@@ -36,19 +37,14 @@ config_webrx: configuration options for OpenWebRX
 
 # ==== Server settings ====
 web_port = 8073
-server_hostname="localhost" # If this contains an incorrect value, the web UI may freeze on load (it can't open websocket)
 max_clients = 20
 
 # ==== Web GUI configuration ====
 receiver_name = "[Callsign]"
 receiver_location = "Budapest, Hungary"
-receiver_qra="JN97ML"
 receiver_asl = 200
-receiver_ant="Longwire"
-receiver_device="RTL-SDR"
 receiver_admin = "example@example.com"
 receiver_gps = (47.000000, 19.000000)
-photo_height=350
 photo_title = "Panorama of Budapest from Schönherz Zoltán Dormitory"
 photo_desc = """
 You can add your own background photo and receiver information.<br />
@@ -65,17 +61,14 @@ Website: <a href="http://localhost" target="_blank">http://localhost</a>
 sdrhu_key = ""
 # 3. Set this setting to True to enable listing:
 sdrhu_public_listing = False
+server_hostname = "localhost"
 
 # ==== DSP/RX settings ====
 fft_fps = 9
 fft_size = 4096  # Should be power of 2
-fft_voverlap_factor=0.3 #If fft_voverlap_factor is above 0, multiple FFTs will be used for creating a line on the diagram.
-
-# samp_rate = 250000
-samp_rate = 2400000
-center_freq = 144250000
-rf_gain = 5 #in dB. For an RTL-SDR, rf_gain=0 will set the tuner to auto gain mode, else it will be in manual gain mode.
-ppm = 0
+fft_voverlap_factor = (
+    0.3  # If fft_voverlap_factor is above 0, multiple FFTs will be used for creating a line on the diagram.
+)
 
 audio_compression = "adpcm"  # valid values: "adpcm", "none"
 fft_compression = "adpcm"  # valid values: "adpcm", "none"
@@ -83,7 +76,11 @@ fft_compression="adpcm" #valid values: "adpcm", "none"
 digimodes_enable = True  # Decoding digimodes come with higher CPU usage.
 digimodes_fft_size = 1024
 
-start_rtl_thread=True
+# determines the quality, and thus the cpu usage, for the ambe codec used by digital voice modes
+# if you're running on a Raspi (up to 3B+) you'll want to leave this on 1
+digital_voice_unvoiced_quality = 1
+# enables lookup of DMR ids using the radioid api
+digital_voice_dmr_id_lookup = True
 
 """
 Note: if you experience audio underruns while CPU usage is 100%, you can: 
@@ -101,81 +98,151 @@ Note: if you experience audio underruns while CPU usage is 100%, you can:
 # Check here: https://github.com/simonyiszk/openwebrx/wiki#guides-for-receiver-hardware-support #
 #################################################################################################
 
-# You can use other SDR hardware as well, by giving your own command that outputs the I/Q samples... Some examples of configuration are available here (default is RTL-SDR):
+# Currently supported types of sdr receivers:
+# "rtl_sdr", "sdrplay", "hackrf", "airspy", "airspyhf", "fifi_sdr"
+#
+# In order to use rtl_sdr, you will need to install librtlsdr-dev and the connector.
+# In order to use sdrplay, airspy or airspyhf, you will need to install soapysdr, the corresponding driver, and the
+# connector.
+#
+# https://github.com/jketterl/owrx_connector
+#
+# NOTE: The connector sources have replaced the old piped nmux style of reading input. If you still have any sdrs
+# configured that have type endin in "_connector", simply remove that suffix.
 
-# >> RTL-SDR via rtl_sdr
-start_rtl_command="rtl_sdr -s {samp_rate} -f {center_freq} -p {ppm} -g {rf_gain} -".format(rf_gain=rf_gain, center_freq=center_freq, samp_rate=samp_rate, ppm=ppm)
-format_conversion="csdr convert_u8_f"
-
-#lna_gain=8
-#rf_amp=1
-#start_rtl_command="hackrf_transfer -s {samp_rate} -f {center_freq} -g {rf_gain} -l{lna_gain} -a{rf_amp} -r-".format(rf_gain=rf_gain, center_freq=center_freq, samp_rate=samp_rate, ppm=ppm, rf_amp=rf_amp, lna_gain=lna_gain)
-#format_conversion="csdr convert_s8_f"
-"""
-To use a HackRF, compile the HackRF host tools from its "stdout" branch:
- git clone https://github.com/mossmann/hackrf/
- cd hackrf
- git fetch
- git checkout origin/stdout
- cd host
- mkdir build
- cd build
- cmake .. -DINSTALL_UDEV_RULES=ON
- make
- sudo make install
-"""
-
-# >> Sound card SDR (needs ALSA)
-# I did not have the chance to properly test it.
-#samp_rate = 96000
-#start_rtl_command="arecord -f S16_LE -r {samp_rate} -c2 -".format(samp_rate=samp_rate)
-#format_conversion="csdr convert_s16_f | csdr gain_ff 30"
-
-# >> /dev/urandom test signal source
-# samp_rate = 2400000
-# start_rtl_command="cat /dev/urandom | (pv -qL `python -c 'print int({samp_rate} * 2.2)'` 2>&1)".format(rf_gain=rf_gain, center_freq=center_freq, samp_rate=samp_rate)
-# format_conversion="csdr convert_u8_f"
-
-# >> Pre-recorded raw I/Q file as signal source
-# You will have to correctly specify: samp_rate, center_freq, format_conversion in order to correctly play an I/Q file.
-#start_rtl_command="(while true; do cat my_iq_file.raw; done) | csdr flowcontrol {sr} 20 ".format(sr=samp_rate*2*1.05)
-#format_conversion="csdr convert_u8_f"
-
-#>> The rx_sdr command works with a variety of SDR harware: RTL-SDR, HackRF, SDRplay, UHD, Airspy, Red Pitaya, audio devices, etc. 
-# It will auto-detect your SDR hardware if the following tools are installed:
-# * the vendor provided driver and library, 
-# * the vendor-specific SoapySDR wrapper library, 
-# * and SoapySDR itself.
-# Check out this article on the OpenWebRX Wiki: https://github.com/simonyiszk/openwebrx/wiki/Using-rx_tools-with-OpenWebRX/
-#start_rtl_command="rx_sdr -F CF32 -s {samp_rate} -f {center_freq} -p {ppm} -g {rf_gain} -".format(rf_gain=rf_gain, center_freq=center_freq, samp_rate=samp_rate, ppm=ppm)
-#format_conversion=""
-
-# >> gr-osmosdr signal source using GNU Radio (follow this guide: https://github.com/simonyiszk/openwebrx/wiki/Using-GrOsmoSDR-as-signal-source)
-#start_rtl_command="cat /tmp/osmocom_fifo"
-#format_conversion=""
-
-# ==== Misc settings ====
-
-shown_center_freq = center_freq #you can change this if you use an upconverter
-
-client_audio_buffer_size = 5
-#increasing client_audio_buffer_size will:
-# - also increase the latency
-# - decrease the chance of audio underruns
-
-start_freq = center_freq
-start_mod = "nfm" #nfm, am, lsb, usb, cw
-
-iq_server_port = 4951 #TCP port for ncat to listen on. It will send I/Q data over its connections, for internal use in OpenWebRX. It is only accessible from the localhost by default.
-
-#access_log = "~/openwebrx_access.log"
+sdrs = {
+    "rtlsdr": {
+        "name": "RTL-SDR USB Stick",
+        "type": "rtl_sdr",
+        "ppm": 0,
+        # you can change this if you use an upconverter. formula is:
+        # center_freq + lfo_offset = actual frequency on the sdr
+        # "lfo_offset": 0,
+        "profiles": {
+            "70cm": {
+                "name": "70cm Relais",
+                "center_freq": 438800000,
+                "rf_gain": 30,
+                "samp_rate": 2400000,
+                "start_freq": 439275000,
+                "start_mod": "nfm",
+            },
+            "2m": {
+                "name": "2m komplett",
+                "center_freq": 145000000,
+                "rf_gain": 30,
+                "samp_rate": 2400000,
+                "start_freq": 145725000,
+                "start_mod": "nfm",
+            },
+        },
+    },
+    "airspy": {
+        "name": "Airspy HF+",
+        "type": "airspyhf",
+        "ppm": 0,
+        "profiles": {
+            "20m": {
+                "name": "20m",
+                "center_freq": 14150000,
+                "rf_gain": 10,
+                "samp_rate": 768000,
+                "start_freq": 14070000,
+                "start_mod": "usb",
+            },
+            "30m": {
+                "name": "30m",
+                "center_freq": 10125000,
+                "rf_gain": 10,
+                "samp_rate": 192000,
+                "start_freq": 10142000,
+                "start_mod": "usb",
+            },
+            "40m": {
+                "name": "40m",
+                "center_freq": 7100000,
+                "rf_gain": 10,
+                "samp_rate": 256000,
+                "start_freq": 7070000,
+                "start_mod": "usb",
+            },
+            "80m": {
+                "name": "80m",
+                "center_freq": 3650000,
+                "rf_gain": 10,
+                "samp_rate": 768000,
+                "start_freq": 3570000,
+                "start_mod": "usb",
+            },
+            "49m": {
+                "name": "49m Broadcast",
+                "center_freq": 6000000,
+                "rf_gain": 10,
+                "samp_rate": 768000,
+                "start_freq": 6070000,
+                "start_mod": "am",
+            },
+        },
+    },
+    "sdrplay": {
+        "name": "SDRPlay RSP2",
+        "type": "sdrplay",
+        "ppm": 0,
+        "profiles": {
+            "20m": {
+                "name": "20m",
+                "center_freq": 14150000,
+                "rf_gain": 0,
+                "samp_rate": 500000,
+                "start_freq": 14070000,
+                "start_mod": "usb",
+                "antenna": "Antenna A",
+            },
+            "30m": {
+                "name": "30m",
+                "center_freq": 10125000,
+                "rf_gain": 0,
+                "samp_rate": 250000,
+                "start_freq": 10142000,
+                "start_mod": "usb",
+            },
+            "40m": {
+                "name": "40m",
+                "center_freq": 7100000,
+                "rf_gain": 0,
+                "samp_rate": 500000,
+                "start_freq": 7070000,
+                "start_mod": "usb",
+                "antenna": "Antenna A",
+            },
+            "80m": {
+                "name": "80m",
+                "center_freq": 3650000,
+                "rf_gain": 0,
+                "samp_rate": 500000,
+                "start_freq": 3570000,
+                "start_mod": "usb",
+                "antenna": "Antenna A",
+            },
+            "49m": {
+                "name": "49m Broadcast",
+                "center_freq": 6000000,
+                "rf_gain": 0,
+                "samp_rate": 500000,
+                "start_freq": 6070000,
+                "start_mod": "am",
+                "antenna": "Antenna A",
+            },
+        },
+    },
+}
 
 # ==== Color themes ====
 
 # A guide is available to help you set these values: https://github.com/simonyiszk/openwebrx/wiki/Calibrating-waterfall-display-levels
 
 ### default theme by teejez:
-waterfall_colors = "[0x000000ff,0x0000ffff,0x00ffffff,0x00ff00ff,0xffff00ff,0xff0000ff,0xff00ffff,0xffffffff]"
+waterfall_colors = [0x000000FF, 0x0000FFFF, 0x00FFFFFF, 0x00FF00FF, 0xFFFF00FF, 0xFF0000FF, 0xFF00FFFF, 0xFFFFFFFF]
 waterfall_min_level = -88  # in dB
 waterfall_max_level = -20
 waterfall_auto_level_margin = (5, 40)
@@ -194,11 +261,6 @@ waterfall_auto_level_margin = (5, 40)
 #        \_waterfall_auto_level_margin[0]_/ |__ current_min_power_level          | \_waterfall_auto_level_margin[1]_/
 #                                                      current_max_power_level __|
 
-# 3D view settings
-mathbox_waterfall_frequency_resolution = 128 #bins
-mathbox_waterfall_history_length = 10 #seconds
-mathbox_waterfall_colors = "[0x000000ff,0x2e6893ff, 0x69a5d0ff, 0x214b69ff, 0x9dc4e0ff,  0xfff775ff, 0xff8a8aff, 0xb20000ff]"
-
 # === Experimental settings ===
 # Warning! The settings below are very experimental.
 csdr_dynamic_bufsize = False  # This allows you to change the buffering mode of csdr.
@@ -207,10 +269,48 @@ csdr_through = False # Setting this True will print out how much data is going i
 
 nmux_memory = 50  # in megabytes. This sets the approximate size of the circular buffer used by nmux.
 
-#Look up external IP address automatically from icanhazip.com, and use it as [server_hostname]
-"""
-print "[openwebrx-config] Detecting external IP address..."
-import urllib2
-server_hostname=urllib2.urlopen("http://icanhazip.com").read()[:-1]
-print "[openwebrx-config] External IP address detected:", server_hostname
-"""
+google_maps_api_key = ""
+
+# how long should positions be visible on the map?
+# they will start fading out after half of that
+# in seconds; default: 2 hours
+map_position_retention_time = 2 * 60 * 60
+
+# wsjt decoder queue configuration
+# due to the nature of the wsjt operating modes (ft8, ft8, jt9, jt65 and wspr), the data is recorded for a given amount
+# of time (6.5 seconds up to 2 minutes) and decoded at the end. this can lead to very high peak loads.
+# to mitigate this, the recordings will be queued and processed in sequence.
+# the number of workers will limit the total amount of work (one worker will losely occupy one cpu / thread)
+wsjt_queue_workers = 2
+# the maximum queue length will cause decodes to be dumped if the workers cannot keep up
+# if you are running background services, make sure this number is high enough to accept the task influx during peaks
+# i.e. this should be higher than the number of wsjt services running at the same time
+wsjt_queue_length = 10
+# wsjt decoding depth will allow more results, but will also consume more cpu
+wsjt_decoding_depth = 3
+# can also be set for each mode separately
+# jt65 seems to be somewhat prone to erroneous decodes, this setting handles that to some extent
+wsjt_decoding_depths = {"jt65": 1}
+
+temporary_directory = "/tmp"
+
+services_enabled = False
+services_decoders = ["ft8", "ft4", "wspr", "packet"]
+
+# === aprs igate settings ===
+# if you want to share your APRS decodes with the aprs network, configure these settings accordingly
+aprs_callsign = "N0CALL"
+aprs_igate_enabled = False
+aprs_igate_server = "euro.aprs2.net"
+aprs_igate_password = ""
+# beacon uses the receiver_gps setting, so if you enable this, make sure the location is correct there
+aprs_igate_beacon = False
+
+# path to the aprs symbols repository (get it here: https://github.com/hessu/aprs-symbols)
+aprs_symbols_path = "/opt/aprs-symbols/png"
+
+# === PSK Reporter setting ===
+# enable this if you want to upload all ft8, ft4 etc spots to pskreporter.info
+# this also uses the receiver_gps setting from above, so make sure it contains a correct locator
+pskreporter_enabled = False
+pskreporter_callsign = "N0CALL"

csdr.py

@@ -1,424 +0,0 @@
-"""
-OpenWebRX csdr plugin: do the signal processing with csdr
-
-    This file is part of OpenWebRX,
-    an open-source SDR receiver software with a web UI.
-    Copyright (c) 2013-2015 by Andras Retzler <randras@sdr.hu>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero General Public License as
-    published by the Free Software Foundation, either version 3 of the
-    License, or (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-"""
-
-import subprocess
-import time
-import os
-import code
-import signal
-import fcntl
-
-class dsp:
-
-    def __init__(self):
-        self.samp_rate = 250000
-        self.output_rate = 11025 #this is default, and cannot be set at the moment
-        self.fft_size = 1024
-        self.fft_fps = 5
-        self.offset_freq = 0
-        self.low_cut = -4000
-        self.high_cut = 4000
-        self.bpf_transition_bw = 320 #Hz, and this is a constant
-        self.ddc_transition_bw_rate = 0.15 # of the IF sample rate
-        self.running = False
-        self.secondary_processes_running = False
-        self.audio_compression = "none"
-        self.fft_compression = "none"
-        self.demodulator = "nfm"
-        self.name = "csdr"
-        self.format_conversion = "csdr convert_u8_f"
-        self.base_bufsize = 512
-        self.nc_port = 4951
-        self.csdr_dynamic_bufsize = False
-        self.csdr_print_bufsizes = False
-        self.csdr_through = False
-        self.squelch_level = 0
-        self.fft_averages = 50
-        self.iqtee = False
-        self.iqtee2 = False
-        self.secondary_demodulator = None
-        self.secondary_fft_size = 1024
-        self.secondary_process_fft = None
-        self.secondary_process_demod = None
-        self.pipe_names=["bpf_pipe", "shift_pipe", "squelch_pipe", "smeter_pipe", "iqtee_pipe", "iqtee2_pipe"]
-        self.secondary_pipe_names=["secondary_shift_pipe"]
-        self.secondary_offset_freq = 1000
-
-    def chain(self,which):
-        any_chain_base="nc -v 127.0.0.1 {nc_port} | "
-        if self.csdr_dynamic_bufsize: any_chain_base+="csdr setbuf {start_bufsize} | "
-        if self.csdr_through: any_chain_base+="csdr through | "
-        any_chain_base+=self.format_conversion+(" | " if  self.format_conversion!="" else "") ##"csdr flowcontrol {flowcontrol} auto 1.5 10 | "
-        if which == "fft":
-            fft_chain_base = any_chain_base+"csdr fft_cc {fft_size} {fft_block_size} | " + \
-                ("csdr logpower_cf -70 | " if self.fft_averages == 0 else "csdr logaveragepower_cf -70 {fft_size} {fft_averages} | ") + \
-                "csdr fft_exchange_sides_ff {fft_size}"
-            if self.fft_compression=="adpcm":
-                return fft_chain_base+" | csdr compress_fft_adpcm_f_u8 {fft_size}"
-            else:
-                return fft_chain_base
-        chain_begin=any_chain_base+"csdr shift_addition_cc --fifo {shift_pipe} | csdr fir_decimate_cc {decimation} {ddc_transition_bw} HAMMING | csdr bandpass_fir_fft_cc --fifo {bpf_pipe} {bpf_transition_bw} HAMMING | csdr squelch_and_smeter_cc --fifo {squelch_pipe} --outfifo {smeter_pipe} 5 1 | "
-        if self.secondary_demodulator:
-            chain_begin+="csdr tee {iqtee_pipe} | "
-            chain_begin+="csdr tee {iqtee2_pipe} | " 
-        chain_end = ""
-        if self.audio_compression=="adpcm":
-            chain_end = " | csdr encode_ima_adpcm_i16_u8"
-        if which == "nfm": return chain_begin + "csdr fmdemod_quadri_cf | csdr limit_ff | csdr old_fractional_decimator_ff {last_decimation} | csdr deemphasis_nfm_ff 11025 | csdr fastagc_ff 1024 | csdr convert_f_s16"+chain_end
-        elif which == "am": return chain_begin + "csdr amdemod_cf | csdr fastdcblock_ff | csdr old_fractional_decimator_ff {last_decimation} | csdr agc_ff | csdr limit_ff | csdr convert_f_s16"+chain_end
-        elif which == "ssb": return chain_begin + "csdr realpart_cf | csdr old_fractional_decimator_ff {last_decimation} | csdr agc_ff | csdr limit_ff | csdr convert_f_s16"+chain_end
-
-    def secondary_chain(self, which):
-        secondary_chain_base="cat {input_pipe} | "
-        if which == "fft":
-            return secondary_chain_base+"csdr realpart_cf | csdr fft_fc {secondary_fft_input_size} {secondary_fft_block_size} | csdr logpower_cf -70 " + (" | csdr compress_fft_adpcm_f_u8 {secondary_fft_size}" if self.fft_compression=="adpcm" else "")
-        elif which == "bpsk31":
-            return secondary_chain_base + "csdr shift_addition_cc --fifo {secondary_shift_pipe} | " + \
-                    "csdr bandpass_fir_fft_cc $(csdr '=-(31.25)/{if_samp_rate}') $(csdr '=(31.25)/{if_samp_rate}') $(csdr '=31.25/{if_samp_rate}') | " + \
-                    "csdr simple_agc_cc 0.001 0.5 | " + \
-                    "csdr timing_recovery_cc GARDNER {secondary_samples_per_bits} 0.5 2 --add_q | " + \
-                    "CSDR_FIXED_BUFSIZE=1 csdr dbpsk_decoder_c_u8 | " + \
-                    "CSDR_FIXED_BUFSIZE=1 csdr psk31_varicode_decoder_u8_u8"
-
-    def set_secondary_demodulator(self, what):
-        self.secondary_demodulator = what
-
-    def secondary_fft_block_size(self):
-        return (self.samp_rate/self.decimation)/(self.fft_fps*2) #*2 is there because we do FFT on real signal here
-
-    def secondary_decimation(self):
-        return 1 #currently unused
-
-    def secondary_bpf_cutoff(self):
-        if self.secondary_demodulator == "bpsk31":
-             return (31.25/2) / self.if_samp_rate()
-        return 0
-
-    def secondary_bpf_transition_bw(self):
-        if self.secondary_demodulator == "bpsk31":
-            return (31.25/2) / self.if_samp_rate()
-        return 0
-
-    def secondary_samples_per_bits(self):
-        if self.secondary_demodulator == "bpsk31":
-            return int(round(self.if_samp_rate()/31.25))&~3
-        return 0
-
-    def secondary_bw(self):
-        if self.secondary_demodulator == "bpsk31":
-            return 31.25
-
-    def start_secondary_demodulator(self):
-        if(not self.secondary_demodulator): return
-        print "[openwebrx] starting secondary demodulator from IF input sampled at %d"%self.if_samp_rate()
-        secondary_command_fft=self.secondary_chain("fft")
-        secondary_command_demod=self.secondary_chain(self.secondary_demodulator)
-        self.try_create_pipes(self.secondary_pipe_names, secondary_command_demod + secondary_command_fft)
-
-        secondary_command_fft=secondary_command_fft.format( \
-            input_pipe=self.iqtee_pipe, \
-            secondary_fft_input_size=self.secondary_fft_size, \
-            secondary_fft_size=self.secondary_fft_size, \
-            secondary_fft_block_size=self.secondary_fft_block_size(), \
-            )
-        secondary_command_demod=secondary_command_demod.format( \
-            input_pipe=self.iqtee2_pipe, \
-            secondary_shift_pipe=self.secondary_shift_pipe, \
-            secondary_decimation=self.secondary_decimation(), \
-            secondary_samples_per_bits=self.secondary_samples_per_bits(), \
-            secondary_bpf_cutoff=self.secondary_bpf_cutoff(), \
-            secondary_bpf_transition_bw=self.secondary_bpf_transition_bw(), \
-            if_samp_rate=self.if_samp_rate()
-            )
-
-        print "[openwebrx-dsp-plugin:csdr] secondary command (fft) =", secondary_command_fft
-        print "[openwebrx-dsp-plugin:csdr] secondary command (demod) =", secondary_command_demod
-        #code.interact(local=locals())
-        my_env=os.environ.copy()
-        #if self.csdr_dynamic_bufsize: my_env["CSDR_DYNAMIC_BUFSIZE_ON"]="1";
-        if self.csdr_print_bufsizes: my_env["CSDR_PRINT_BUFSIZES"]="1";
-        self.secondary_process_fft = subprocess.Popen(secondary_command_fft, stdout=subprocess.PIPE, shell=True, preexec_fn=os.setpgrp, env=my_env)
-        print "[openwebrx-dsp-plugin:csdr] Popen on secondary command (fft)"
-        self.secondary_process_demod = subprocess.Popen(secondary_command_demod, stdout=subprocess.PIPE, shell=True, preexec_fn=os.setpgrp, env=my_env) #TODO digimodes
-        print "[openwebrx-dsp-plugin:csdr] Popen on secondary command (demod)" #TODO digimodes
-        self.secondary_processes_running = True
-
-        #open control pipes for csdr and send initialization data
-        # print "==========> 1"
-        if self.secondary_shift_pipe != None: #TODO digimodes
-            # print "==========> 2", self.secondary_shift_pipe
-            self.secondary_shift_pipe_file=open(self.secondary_shift_pipe,"w") #TODO digimodes
-            # print "==========> 3"
-            self.set_secondary_offset_freq(self.secondary_offset_freq) #TODO digimodes
-            # print "==========> 4"
-
-        self.set_pipe_nonblocking(self.secondary_process_demod.stdout)
-        self.set_pipe_nonblocking(self.secondary_process_fft.stdout)
-
-    def set_secondary_offset_freq(self, value):
-        self.secondary_offset_freq=value
-        if self.secondary_processes_running:
-            self.secondary_shift_pipe_file.write("%g\n"%(-float(self.secondary_offset_freq)/self.if_samp_rate()))
-            self.secondary_shift_pipe_file.flush()
-
-    def stop_secondary_demodulator(self):
-        if self.secondary_processes_running == False: return
-        self.try_delete_pipes(self.secondary_pipe_names)
-        if self.secondary_process_fft: os.killpg(os.getpgid(self.secondary_process_fft.pid), signal.SIGTERM)
-        if self.secondary_process_demod: os.killpg(os.getpgid(self.secondary_process_demod.pid), signal.SIGTERM)
-        self.secondary_processes_running = False
-
-    def read_secondary_demod(self, size):
-        return self.secondary_process_demod.stdout.read(size)
-
-    def read_secondary_fft(self, size):
-        return self.secondary_process_fft.stdout.read(size)
-
-    def get_secondary_demodulator(self):
-        return self.secondary_demodulator
-
-    def set_secondary_fft_size(self,secondary_fft_size):
-        #to change this, restart is required
-        self.secondary_fft_size=secondary_fft_size
-
-    def set_audio_compression(self,what):
-        self.audio_compression = what
-
-    def set_fft_compression(self,what):
-        self.fft_compression = what
-
-    def get_fft_bytes_to_read(self):
-        if self.fft_compression=="none": return self.fft_size*4
-        if self.fft_compression=="adpcm": return (self.fft_size/2)+(10/2)
-
-    def get_secondary_fft_bytes_to_read(self):
-        if self.fft_compression=="none": return self.secondary_fft_size*4
-        if self.fft_compression=="adpcm": return (self.secondary_fft_size/2)+(10/2)
-
-    def set_samp_rate(self,samp_rate):
-        #to change this, restart is required
-        self.samp_rate=samp_rate
-        self.decimation=1
-        while self.samp_rate/(self.decimation+1)>self.output_rate:
-            self.decimation+=1
-        self.last_decimation=float(self.if_samp_rate())/self.output_rate
-
-    def if_samp_rate(self):
-        return self.samp_rate/self.decimation
-
-    def get_name(self):
-        return self.name
-
-    def get_output_rate(self):
-        return self.output_rate
-
-    def set_output_rate(self,output_rate):
-        self.output_rate=output_rate
-        self.set_samp_rate(self.samp_rate) #as it depends on output_rate
-
-    def set_demodulator(self,demodulator):
-        #to change this, restart is required
-        self.demodulator=demodulator
-
-    def get_demodulator(self):
-        return self.demodulator
-
-    def set_fft_size(self,fft_size):
-        #to change this, restart is required
-        self.fft_size=fft_size
-
-    def set_fft_fps(self,fft_fps):
-        #to change this, restart is required
-        self.fft_fps=fft_fps
-
-    def set_fft_averages(self,fft_averages):
-        #to change this, restart is required
-        self.fft_averages=fft_averages
-
-    def fft_block_size(self):
-        if self.fft_averages == 0: return self.samp_rate/self.fft_fps
-        else: return self.samp_rate/self.fft_fps/self.fft_averages
-
-    def set_format_conversion(self,format_conversion):
-        self.format_conversion=format_conversion
-
-    def set_offset_freq(self,offset_freq):
-        self.offset_freq=offset_freq
-        if self.running:
-            self.shift_pipe_file.write("%g\n"%(-float(self.offset_freq)/self.samp_rate))
-            self.shift_pipe_file.flush()
-
-    def set_bpf(self,low_cut,high_cut):
-        self.low_cut=low_cut
-        self.high_cut=high_cut
-        if self.running:
-            self.bpf_pipe_file.write( "%g %g\n"%(float(self.low_cut)/self.if_samp_rate(), float(self.high_cut)/self.if_samp_rate()) )
-            self.bpf_pipe_file.flush()
-
-    def get_bpf(self):
-        return [self.low_cut, self.high_cut]
-
-    def set_squelch_level(self, squelch_level):
-        self.squelch_level=squelch_level
-        if self.running:
-            self.squelch_pipe_file.write( "%g\n"%(float(self.squelch_level)) )
-            self.squelch_pipe_file.flush()
-
-    def get_smeter_level(self):
-        if self.running:
-            line=self.smeter_pipe_file.readline()
-            return float(line[:-1])
-
-    def mkfifo(self,path):
-        try:
-            os.unlink(path)
-        except:
-            pass
-        os.mkfifo(path)
-
-    def ddc_transition_bw(self):
-        return self.ddc_transition_bw_rate*(self.if_samp_rate()/float(self.samp_rate))
-
-    def try_create_pipes(self, pipe_names, command_base):
-        # print "try_create_pipes"
-        for pipe_name in pipe_names:
-            # print "\t"+pipe_name
-            if "{"+pipe_name+"}" in command_base:
-                setattr(self, pipe_name, self.pipe_base_path+pipe_name)
-                self.mkfifo(getattr(self, pipe_name))
-            else:
-                setattr(self, pipe_name, None)
-
-    def try_delete_pipes(self, pipe_names):
-        for pipe_name in pipe_names:
-            pipe_path = getattr(self,pipe_name,None)
-            if pipe_path:
-                try: os.unlink(pipe_path)
-                except Exception as e: print "[openwebrx-dsp-plugin:csdr] try_delete_pipes() ::", e
-
-    def set_pipe_nonblocking(self, pipe):
-        flags = fcntl.fcntl(pipe, fcntl.F_GETFL)
-        fcntl.fcntl(pipe, fcntl.F_SETFL, flags | os.O_NONBLOCK)
-
-    def start(self):
-        command_base=self.chain(self.demodulator)
-
-        #create control pipes for csdr
-        self.pipe_base_path="/tmp/openwebrx_pipe_{myid}_".format(myid=id(self))
-        # self.bpf_pipe = self.shift_pipe = self.squelch_pipe = self.smeter_pipe = None
-
-        self.try_create_pipes(self.pipe_names, command_base)
-
-        # if "{bpf_pipe}" in command_base:
-            # self.bpf_pipe=pipe_base_path+"bpf"
-            # self.mkfifo(self.bpf_pipe)
-        # if "{shift_pipe}" in command_base:
-            # self.shift_pipe=pipe_base_path+"shift"
-            # self.mkfifo(self.shift_pipe)
-        # if "{squelch_pipe}" in command_base:
-            # self.squelch_pipe=pipe_base_path+"squelch"
-            # self.mkfifo(self.squelch_pipe)
-        # if "{smeter_pipe}" in command_base:
-            # self.smeter_pipe=pipe_base_path+"smeter"
-            # self.mkfifo(self.smeter_pipe)
-        # if "{iqtee_pipe}" in command_base:
-            # self.iqtee_pipe=pipe_base_path+"iqtee"
-            # self.mkfifo(self.iqtee_pipe)
-        # if "{iqtee2_pipe}" in command_base:
-            # self.iqtee2_pipe=pipe_base_path+"iqtee2"
-            # self.mkfifo(self.iqtee2_pipe)
-
-        #run the command
-        command=command_base.format( bpf_pipe=self.bpf_pipe, shift_pipe=self.shift_pipe, decimation=self.decimation, \
-            last_decimation=self.last_decimation, fft_size=self.fft_size, fft_block_size=self.fft_block_size(), fft_averages=self.fft_averages, \
-            bpf_transition_bw=float(self.bpf_transition_bw)/self.if_samp_rate(), ddc_transition_bw=self.ddc_transition_bw(), \
-            flowcontrol=int(self.samp_rate*2), start_bufsize=self.base_bufsize*self.decimation, nc_port=self.nc_port, \
-            squelch_pipe=self.squelch_pipe, smeter_pipe=self.smeter_pipe, iqtee_pipe=self.iqtee_pipe, iqtee2_pipe=self.iqtee2_pipe )
-
-        print "[openwebrx-dsp-plugin:csdr] Command =",command
-        #code.interact(local=locals())
-        my_env=os.environ.copy()
-        if self.csdr_dynamic_bufsize: my_env["CSDR_DYNAMIC_BUFSIZE_ON"]="1";
-        if self.csdr_print_bufsizes: my_env["CSDR_PRINT_BUFSIZES"]="1";
-        self.process = subprocess.Popen(command, stdout=subprocess.PIPE, shell=True, preexec_fn=os.setpgrp, env=my_env)
-        self.running = True
-
-        #open control pipes for csdr and send initialization data
-        if self.bpf_pipe != None:
-            self.bpf_pipe_file=open(self.bpf_pipe,"w")
-            self.set_bpf(self.low_cut,self.high_cut)
-        if self.shift_pipe != None:
-            self.shift_pipe_file=open(self.shift_pipe,"w")
-            self.set_offset_freq(self.offset_freq)
-        if self.squelch_pipe != None:
-            self.squelch_pipe_file=open(self.squelch_pipe,"w")
-            self.set_squelch_level(self.squelch_level)
-        if self.smeter_pipe != None:
-            self.smeter_pipe_file=open(self.smeter_pipe,"r")
-            self.set_pipe_nonblocking(self.smeter_pipe_file)
-
-        self.start_secondary_demodulator()
-
-    def read(self,size):
-        return self.process.stdout.read(size)
-
-    def stop(self):
-        os.killpg(os.getpgid(self.process.pid), signal.SIGTERM)
-        self.stop_secondary_demodulator()
-        #if(self.process.poll()!=None):return # returns None while subprocess is running
-        #while(self.process.poll()==None):
-        #   #self.process.kill()
-        #   print "killproc",os.getpgid(self.process.pid),self.process.pid
-        #   os.killpg(self.process.pid, signal.SIGTERM)
-        #
-        #   time.sleep(0.1)
-
-        self.try_delete_pipes(self.pipe_names)
-
-        # if self.bpf_pipe:
-            # try: os.unlink(self.bpf_pipe)
-            # except: print "[openwebrx-dsp-plugin:csdr] stop() :: unlink failed: " + self.bpf_pipe
-        # if self.shift_pipe:
-            # try: os.unlink(self.shift_pipe)
-            # except: print "[openwebrx-dsp-plugin:csdr] stop() :: unlink failed: " + self.shift_pipe
-        # if self.squelch_pipe:
-            # try: os.unlink(self.squelch_pipe)
-            # except: print "[openwebrx-dsp-plugin:csdr] stop() :: unlink failed: " + self.squelch_pipe
-        # if self.smeter_pipe:
-            # try: os.unlink(self.smeter_pipe)
-            # except: print "[openwebrx-dsp-plugin:csdr] stop() :: unlink failed: " + self.smeter_pipe
-        # if self.iqtee_pipe:
-            # try: os.unlink(self.iqtee_pipe)
-            # except: print "[openwebrx-dsp-plugin:csdr] stop() :: unlink failed: " + self.iqtee_pipe
-        # if self.iqtee2_pipe:
-            # try: os.unlink(self.iqtee2_pipe)
-            # except: print "[openwebrx-dsp-plugin:csdr] stop() :: unlink failed: " + self.iqtee2_pipe
-
-        self.running = False
-
-    def restart(self):
-        self.stop()
-        self.start()
-
-    def __del__(self):
-        self.stop()
-        del(self.process)

csdr/csdr.py

@@ -0,0 +1,760 @@
+"""
+OpenWebRX csdr plugin: do the signal processing with csdr
+
+    This file is part of OpenWebRX,
+    an open-source SDR receiver software with a web UI.
+    Copyright (c) 2013-2015 by Andras Retzler <randras@sdr.hu>
+    Copyright (c) 2019-2020 by Jakob Ketterl <dd5jfk@darc.de>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation, either version 3 of the
+    License, or (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+"""
+
+import subprocess
+import os
+import signal
+import threading
+import math
+from functools import partial
+
+from owrx.kiss import KissClient, DirewolfConfig
+from owrx.wsjt import Ft8Chopper, WsprChopper, Jt9Chopper, Jt65Chopper, Ft4Chopper
+
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class output(object):
+    def send_output(self, t, read_fn):
+        if not self.supports_type(t):
+            # TODO rewrite the output mechanism in a way that avoids producing unnecessary data
+            logger.warning("dumping output of type %s since it is not supported.", t)
+            threading.Thread(target=self.pump(read_fn, lambda x: None)).start()
+            return
+        self.receive_output(t, read_fn)
+
+    def receive_output(self, t, read_fn):
+        pass
+
+    def pump(self, read, write):
+        def copy():
+            run = True
+            while run:
+                data = read()
+                if data is None or (isinstance(data, bytes) and len(data) == 0):
+                    run = False
+                else:
+                    write(data)
+
+        return copy
+
+    def supports_type(self, t):
+        return True
+
+
+class dsp(object):
+    def __init__(self, output):
+        self.samp_rate = 250000
+        self.output_rate = 11025
+        self.fft_size = 1024
+        self.fft_fps = 5
+        self.offset_freq = 0
+        self.low_cut = -4000
+        self.high_cut = 4000
+        self.bpf_transition_bw = 320  # Hz, and this is a constant
+        self.ddc_transition_bw_rate = 0.15  # of the IF sample rate
+        self.running = False
+        self.secondary_processes_running = False
+        self.audio_compression = "none"
+        self.fft_compression = "none"
+        self.demodulator = "nfm"
+        self.name = "csdr"
+        self.base_bufsize = 512
+        self.nc_port = None
+        self.csdr_dynamic_bufsize = False
+        self.csdr_print_bufsizes = False
+        self.csdr_through = False
+        self.squelch_level = -150
+        self.fft_averages = 50
+        self.iqtee = False
+        self.iqtee2 = False
+        self.secondary_demodulator = None
+        self.secondary_fft_size = 1024
+        self.secondary_process_fft = None
+        self.secondary_process_demod = None
+        self.pipe_names = [
+            "bpf_pipe",
+            "shift_pipe",
+            "squelch_pipe",
+            "smeter_pipe",
+            "meta_pipe",
+            "iqtee_pipe",
+            "iqtee2_pipe",
+            "dmr_control_pipe",
+        ]
+        self.secondary_pipe_names = ["secondary_shift_pipe"]
+        self.secondary_offset_freq = 1000
+        self.unvoiced_quality = 1
+        self.modification_lock = threading.Lock()
+        self.output = output
+        self.temporary_directory = "/tmp"
+        self.is_service = False
+        self.direwolf_config = None
+        self.direwolf_port = None
+
+    def set_service(self, flag=True):
+        self.is_service = flag
+
+    def set_temporary_directory(self, what):
+        self.temporary_directory = what
+
+    def chain(self, which):
+        chain = ["nc -v 127.0.0.1 {nc_port}"]
+        if self.csdr_dynamic_bufsize:
+            chain += ["csdr setbuf {start_bufsize}"]
+        if self.csdr_through:
+            chain += ["csdr through"]
+        if which == "fft":
+            chain += [
+                "csdr fft_cc {fft_size} {fft_block_size}",
+                "csdr logpower_cf -70"
+                if self.fft_averages == 0
+                else "csdr logaveragepower_cf -70 {fft_size} {fft_averages}",
+                "csdr fft_exchange_sides_ff {fft_size}",
+            ]
+            if self.fft_compression == "adpcm":
+                chain += ["csdr compress_fft_adpcm_f_u8 {fft_size}"]
+            return chain
+        chain += ["csdr shift_addition_cc --fifo {shift_pipe}"]
+        if self.decimation > 1:
+            chain += ["csdr fir_decimate_cc {decimation} {ddc_transition_bw} HAMMING"]
+        chain += ["csdr bandpass_fir_fft_cc --fifo {bpf_pipe} {bpf_transition_bw} HAMMING"]
+        if self.output.supports_type("smeter"):
+            chain += [
+                "csdr squelch_and_smeter_cc --fifo {squelch_pipe} --outfifo {smeter_pipe} 5 {smeter_report_every}"
+            ]
+        if self.secondary_demodulator:
+            if self.output.supports_type("secondary_fft"):
+                chain += ["csdr tee {iqtee_pipe}"]
+            chain += ["csdr tee {iqtee2_pipe}"]
+            # early exit if we don't want audio
+            if not self.output.supports_type("audio"):
+                return chain
+        # safe some cpu cycles... no need to decimate if decimation factor is 1
+        last_decimation_block = (
+            ["csdr fractional_decimator_ff {last_decimation}"] if self.last_decimation != 1.0 else []
+        )
+        if which == "nfm":
+            chain += ["csdr fmdemod_quadri_cf", "csdr limit_ff"]
+            chain += last_decimation_block
+            chain += ["csdr deemphasis_nfm_ff {audio_rate}"]
+            if self.get_audio_rate() != self.get_output_rate():
+                chain += [
+                    "sox -t raw -r {audio_rate} -e floating-point -b 32 -c 1 --buffer 32 - -t raw -r {output_rate} -e signed-integer -b 16 -c 1 - "
+                ]
+            else:
+                chain += ["csdr convert_f_s16"]
+        elif self.isDigitalVoice(which):
+            chain += ["csdr fmdemod_quadri_cf", "dc_block "]
+            chain += last_decimation_block
+            # dsd modes
+            if which in ["dstar", "nxdn"]:
+                chain += ["csdr limit_ff", "csdr convert_f_s16"]
+                if which == "dstar":
+                    chain += ["dsd -fd -i - -o - -u {unvoiced_quality} -g -1 "]
+                elif which == "nxdn":
+                    chain += ["dsd -fi -i - -o - -u {unvoiced_quality} -g -1 "]
+                chain += ["CSDR_FIXED_BUFSIZE=32 csdr convert_s16_f"]
+                max_gain = 5
+            # digiham modes
+            else:
+                chain += ["rrc_filter", "gfsk_demodulator"]
+                if which == "dmr":
+                    chain += [
+                        "dmr_decoder --fifo {meta_pipe} --control-fifo {dmr_control_pipe}",
+                        "mbe_synthesizer -f -u {unvoiced_quality}",
+                    ]
+                elif which == "ysf":
+                    chain += ["ysf_decoder --fifo {meta_pipe}", "mbe_synthesizer -y -f -u {unvoiced_quality}"]
+                max_gain = 0.0005
+            chain += [
+                "digitalvoice_filter -f",
+                "CSDR_FIXED_BUFSIZE=32 csdr agc_ff 160000 0.8 1 0.0000001 {max_gain}".format(max_gain=max_gain),
+                "sox -t raw -r 8000 -e floating-point -b 32 -c 1 --buffer 32 - -t raw -r {output_rate} -e signed-integer -b 16 -c 1 - ",
+            ]
+        elif which == "am":
+            chain += ["csdr amdemod_cf", "csdr fastdcblock_ff"]
+            chain += last_decimation_block
+            chain += ["csdr agc_ff", "csdr limit_ff", "csdr convert_f_s16"]
+        elif which == "ssb":
+            chain += ["csdr realpart_cf"]
+            chain += last_decimation_block
+            chain += ["csdr agc_ff", "csdr limit_ff"]
+            # fixed sample rate necessary for the wsjt-x tools. fix with sox...
+            if self.get_audio_rate() != self.get_output_rate():
+                chain += [
+                    "sox -t raw -r {audio_rate} -e floating-point -b 32 -c 1 --buffer 32 - -t raw -r {output_rate} -e signed-integer -b 16 -c 1 - "
+                ]
+            else:
+                chain += ["csdr convert_f_s16"]
+
+        if self.audio_compression == "adpcm":
+            chain += ["csdr encode_ima_adpcm_i16_u8"]
+        return chain
+
+    def secondary_chain(self, which):
+        chain = ["cat {input_pipe}"]
+        if which == "fft":
+            chain += [
+                "csdr realpart_cf",
+                "csdr fft_fc {secondary_fft_input_size} {secondary_fft_block_size}",
+                "csdr logpower_cf -70",
+            ]
+            if self.fft_compression == "adpcm":
+                chain += ["csdr compress_fft_adpcm_f_u8 {secondary_fft_size}"]
+            return chain
+        elif which == "bpsk31" or which == "bpsk63":
+            return chain + [
+                "csdr shift_addition_cc --fifo {secondary_shift_pipe}",
+                "csdr bandpass_fir_fft_cc -{secondary_bpf_cutoff} {secondary_bpf_cutoff} {secondary_bpf_cutoff}",
+                "csdr simple_agc_cc 0.001 0.5",
+                "csdr timing_recovery_cc GARDNER {secondary_samples_per_bits} 0.5 2 --add_q",
+                "CSDR_FIXED_BUFSIZE=1 csdr dbpsk_decoder_c_u8",
+                "CSDR_FIXED_BUFSIZE=1 csdr psk31_varicode_decoder_u8_u8",
+            ]
+        elif self.isWsjtMode(which):
+            chain += ["csdr realpart_cf"]
+            if self.last_decimation != 1.0:
+                chain += ["csdr fractional_decimator_ff {last_decimation}"]
+            return chain + ["csdr limit_ff", "csdr convert_f_s16"]
+        elif which == "packet":
+            chain += ["csdr fmdemod_quadri_cf"]
+            if self.last_decimation != 1.0:
+                chain += ["csdr fractional_decimator_ff {last_decimation}"]
+            return chain + ["csdr convert_f_s16", "direwolf -c {direwolf_config} -r {audio_rate} -t 0 -q d -q h - 1>&2"]
+        elif which == "pocsag":
+            chain += ["csdr fmdemod_quadri_cf"]
+            if self.last_decimation != 1.0:
+                chain += ["csdr fractional_decimator_ff {last_decimation}"]
+            return chain + ["fsk_demodulator -i", "pocsag_decoder"]
+
+    def set_secondary_demodulator(self, what):
+        if self.get_secondary_demodulator() == what:
+            return
+        self.secondary_demodulator = what
+        self.calculate_decimation()
+        self.restart()
+
+    def secondary_fft_block_size(self):
+        return (self.samp_rate / self.decimation) / (
+            self.fft_fps * 2
+        )  # *2 is there because we do FFT on real signal here
+
+    def secondary_decimation(self):
+        return 1  # currently unused
+
+    def secondary_bpf_cutoff(self):
+        if self.secondary_demodulator == "bpsk31":
+            return 31.25 / self.if_samp_rate()
+        elif self.secondary_demodulator == "bpsk63":
+            return 62.5 / self.if_samp_rate()
+        return 0
+
+    def secondary_bpf_transition_bw(self):
+        if self.secondary_demodulator == "bpsk31":
+            return 31.25 / self.if_samp_rate()
+        elif self.secondary_demodulator == "bpsk63":
+            return 62.5 / self.if_samp_rate()
+        return 0
+
+    def secondary_samples_per_bits(self):
+        if self.secondary_demodulator == "bpsk31":
+            return int(round(self.if_samp_rate() / 31.25)) & ~3
+        elif self.secondary_demodulator == "bpsk63":
+            return int(round(self.if_samp_rate() / 62.5)) & ~3
+        return 0
+
+    def secondary_bw(self):
+        if self.secondary_demodulator == "bpsk31":
+            return 31.25
+        elif self.secondary_demodulator == "bpsk63":
+            return 62.5
+
+    def start_secondary_demodulator(self):
+        if not self.secondary_demodulator:
+            return
+        logger.debug("starting secondary demodulator from IF input sampled at %d" % self.if_samp_rate())
+        secondary_command_demod = " | ".join(self.secondary_chain(self.secondary_demodulator))
+        self.try_create_pipes(self.secondary_pipe_names, secondary_command_demod)
+        self.try_create_configs(secondary_command_demod)
+
+        secondary_command_demod = secondary_command_demod.format(
+            input_pipe=self.iqtee2_pipe,
+            secondary_shift_pipe=self.secondary_shift_pipe,
+            secondary_decimation=self.secondary_decimation(),
+            secondary_samples_per_bits=self.secondary_samples_per_bits(),
+            secondary_bpf_cutoff=self.secondary_bpf_cutoff(),
+            secondary_bpf_transition_bw=self.secondary_bpf_transition_bw(),
+            if_samp_rate=self.if_samp_rate(),
+            last_decimation=self.last_decimation,
+            audio_rate=self.get_audio_rate(),
+            direwolf_config=self.direwolf_config,
+        )
+
+        logger.debug("secondary command (demod) = %s", secondary_command_demod)
+        my_env = os.environ.copy()
+        # if self.csdr_dynamic_bufsize: my_env["CSDR_DYNAMIC_BUFSIZE_ON"]="1";
+        if self.csdr_print_bufsizes:
+            my_env["CSDR_PRINT_BUFSIZES"] = "1"
+        if self.output.supports_type("secondary_fft"):
+            secondary_command_fft = " | ".join(self.secondary_chain("fft"))
+            secondary_command_fft = secondary_command_fft.format(
+                input_pipe=self.iqtee_pipe,
+                secondary_fft_input_size=self.secondary_fft_size,
+                secondary_fft_size=self.secondary_fft_size,
+                secondary_fft_block_size=self.secondary_fft_block_size(),
+            )
+            logger.debug("secondary command (fft) = %s", secondary_command_fft)
+
+            self.secondary_process_fft = subprocess.Popen(
+                secondary_command_fft, stdout=subprocess.PIPE, shell=True, start_new_session=True, env=my_env
+            )
+            self.output.send_output(
+                "secondary_fft",
+                partial(self.secondary_process_fft.stdout.read, int(self.get_secondary_fft_bytes_to_read())),
+            )
+
+        # direwolf does not provide any meaningful data on stdout
+        # more specifically, it doesn't provide any data. if however, for any strange reason, it would start to do so,
+        # it would block if not read. by piping it to devnull, we avoid a potential pitfall here.
+        secondary_output = subprocess.DEVNULL if self.isPacket() else subprocess.PIPE
+        self.secondary_process_demod = subprocess.Popen(
+            secondary_command_demod, stdout=secondary_output, shell=True, start_new_session=True, env=my_env
+        )
+        self.secondary_processes_running = True
+
+        if self.isWsjtMode():
+            smd = self.get_secondary_demodulator()
+            if smd == "ft8":
+                chopper = Ft8Chopper(self.secondary_process_demod.stdout)
+            elif smd == "wspr":
+                chopper = WsprChopper(self.secondary_process_demod.stdout)
+            elif smd == "jt65":
+                chopper = Jt65Chopper(self.secondary_process_demod.stdout)
+            elif smd == "jt9":
+                chopper = Jt9Chopper(self.secondary_process_demod.stdout)
+            elif smd == "ft4":
+                chopper = Ft4Chopper(self.secondary_process_demod.stdout)
+            chopper.start()
+            self.output.send_output("wsjt_demod", chopper.read)
+        elif self.isPacket():
+            # we best get the ax25 packets from the kiss socket
+            kiss = KissClient(self.direwolf_port)
+            self.output.send_output("packet_demod", kiss.read)
+        elif self.isPocsag():
+            self.output.send_output("pocsag_demod", self.secondary_process_demod.stdout.readline)
+        else:
+            self.output.send_output("secondary_demod", partial(self.secondary_process_demod.stdout.read, 1))
+
+        # open control pipes for csdr and send initialization data
+        if self.secondary_shift_pipe != None:  # TODO digimodes
+            self.secondary_shift_pipe_file = open(self.secondary_shift_pipe, "w")  # TODO digimodes
+            self.set_secondary_offset_freq(self.secondary_offset_freq)  # TODO digimodes
+
+    def set_secondary_offset_freq(self, value):
+        self.secondary_offset_freq = value
+        if self.secondary_processes_running and hasattr(self, "secondary_shift_pipe_file"):
+            self.secondary_shift_pipe_file.write("%g\n" % (-float(self.secondary_offset_freq) / self.if_samp_rate()))
+            self.secondary_shift_pipe_file.flush()
+
+    def stop_secondary_demodulator(self):
+        if self.secondary_processes_running == False:
+            return
+        self.try_delete_pipes(self.secondary_pipe_names)
+        self.try_delete_configs()
+        if self.secondary_process_fft:
+            try:
+                os.killpg(os.getpgid(self.secondary_process_fft.pid), signal.SIGTERM)
+            except ProcessLookupError:
+                # been killed by something else, ignore
+                pass
+        if self.secondary_process_demod:
+            try:
+                os.killpg(os.getpgid(self.secondary_process_demod.pid), signal.SIGTERM)
+            except ProcessLookupError:
+                # been killed by something else, ignore
+                pass
+        self.secondary_processes_running = False
+
+    def get_secondary_demodulator(self):
+        return self.secondary_demodulator
+
+    def set_secondary_fft_size(self, secondary_fft_size):
+        # to change this, restart is required
+        self.secondary_fft_size = secondary_fft_size
+
+    def set_audio_compression(self, what):
+        self.audio_compression = what
+
+    def get_audio_bytes_to_read(self):
+        # desired latency: 5ms
+        # uncompressed audio has 16 bits = 2 bytes per sample
+        base = self.output_rate * 0.005 * 2
+        # adpcm compresses the bitstream by 4
+        if self.audio_compression == "adpcm":
+            base = base / 4
+        return int(base)
+
+    def set_fft_compression(self, what):
+        self.fft_compression = what
+
+    def get_fft_bytes_to_read(self):
+        if self.fft_compression == "none":
+            return self.fft_size * 4
+        if self.fft_compression == "adpcm":
+            return int((self.fft_size / 2) + (10 / 2))
+
+    def get_secondary_fft_bytes_to_read(self):
+        if self.fft_compression == "none":
+            return self.secondary_fft_size * 4
+        if self.fft_compression == "adpcm":
+            return (self.secondary_fft_size / 2) + (10 / 2)
+
+    def set_samp_rate(self, samp_rate):
+        self.samp_rate = samp_rate
+        self.calculate_decimation()
+        if self.running:
+            self.restart()
+
+    def calculate_decimation(self):
+        (self.decimation, self.last_decimation, _) = self.get_decimation(self.samp_rate, self.get_audio_rate())
+
+    def get_decimation(self, input_rate, output_rate):
+        decimation = 1
+        while input_rate / (decimation + 1) >= output_rate:
+            decimation += 1
+        fraction = float(input_rate / decimation) / output_rate
+        intermediate_rate = input_rate / decimation
+        return (decimation, fraction, intermediate_rate)
+
+    def if_samp_rate(self):
+        return self.samp_rate / self.decimation
+
+    def get_name(self):
+        return self.name
+
+    def get_output_rate(self):
+        return self.output_rate
+
+    def get_audio_rate(self):
+        if self.isDigitalVoice() or self.isPacket() or self.isPocsag():
+            return 48000
+        elif self.isWsjtMode():
+            return 12000
+        return self.get_output_rate()
+
+    def isDigitalVoice(self, demodulator=None):
+        if demodulator is None:
+            demodulator = self.get_demodulator()
+        return demodulator in ["dmr", "dstar", "nxdn", "ysf"]
+
+    def isWsjtMode(self, demodulator=None):
+        if demodulator is None:
+            demodulator = self.get_secondary_demodulator()
+        return demodulator in ["ft8", "wspr", "jt65", "jt9", "ft4"]
+
+    def isPacket(self, demodulator=None):
+        if demodulator is None:
+            demodulator = self.get_secondary_demodulator()
+        return demodulator == "packet"
+
+    def isPocsag(self, demodulator=None):
+        if demodulator is None:
+            demodulator = self.get_secondary_demodulator()
+        return demodulator == "pocsag"
+
+    def set_output_rate(self, output_rate):
+        if self.output_rate == output_rate:
+            return
+        self.output_rate = output_rate
+        self.calculate_decimation()
+        self.restart()
+
+    def set_demodulator(self, demodulator):
+        if self.demodulator == demodulator:
+            return
+        self.demodulator = demodulator
+        self.calculate_decimation()
+        self.restart()
+
+    def get_demodulator(self):
+        return self.demodulator
+
+    def set_fft_size(self, fft_size):
+        self.fft_size = fft_size
+        self.restart()
+
+    def set_fft_fps(self, fft_fps):
+        self.fft_fps = fft_fps
+        self.restart()
+
+    def set_fft_averages(self, fft_averages):
+        self.fft_averages = fft_averages
+        self.restart()
+
+    def fft_block_size(self):
+        if self.fft_averages == 0:
+            return self.samp_rate / self.fft_fps
+        else:
+            return self.samp_rate / self.fft_fps / self.fft_averages
+
+    def set_offset_freq(self, offset_freq):
+        self.offset_freq = offset_freq
+        if self.running:
+            self.modification_lock.acquire()
+            self.shift_pipe_file.write("%g\n" % (-float(self.offset_freq) / self.samp_rate))
+            self.shift_pipe_file.flush()
+            self.modification_lock.release()
+
+    def set_bpf(self, low_cut, high_cut):
+        self.low_cut = low_cut
+        self.high_cut = high_cut
+        if self.running:
+            self.modification_lock.acquire()
+            self.bpf_pipe_file.write(
+                "%g %g\n" % (float(self.low_cut) / self.if_samp_rate(), float(self.high_cut) / self.if_samp_rate())
+            )
+            self.bpf_pipe_file.flush()
+            self.modification_lock.release()
+
+    def get_bpf(self):
+        return [self.low_cut, self.high_cut]
+
+    def convertToLinear(self, db):
+        return float(math.pow(10, db / 10))
+
+    def set_squelch_level(self, squelch_level):
+        self.squelch_level = squelch_level
+        # no squelch required on digital voice modes
+        actual_squelch = -150 if self.isDigitalVoice() or self.isPacket() or self.isPocsag() else self.squelch_level
+        if self.running:
+            self.modification_lock.acquire()
+            self.squelch_pipe_file.write("%g\n" % (self.convertToLinear(actual_squelch)))
+            self.squelch_pipe_file.flush()
+            self.modification_lock.release()
+
+    def set_unvoiced_quality(self, q):
+        self.unvoiced_quality = q
+        self.restart()
+
+    def get_unvoiced_quality(self):
+        return self.unvoiced_quality
+
+    def set_dmr_filter(self, filter):
+        if self.dmr_control_pipe_file:
+            self.dmr_control_pipe_file.write("{0}\n".format(filter))
+            self.dmr_control_pipe_file.flush()
+
+    def mkfifo(self, path):
+        try:
+            os.unlink(path)
+        except:
+            pass
+        os.mkfifo(path)
+
+    def ddc_transition_bw(self):
+        return self.ddc_transition_bw_rate * (self.if_samp_rate() / float(self.samp_rate))
+
+    def try_create_pipes(self, pipe_names, command_base):
+        for pipe_name in pipe_names:
+            if "{" + pipe_name + "}" in command_base:
+                setattr(self, pipe_name, self.pipe_base_path + pipe_name)
+                self.mkfifo(getattr(self, pipe_name))
+            else:
+                setattr(self, pipe_name, None)
+
+    def try_delete_pipes(self, pipe_names):
+        for pipe_name in pipe_names:
+            pipe_path = getattr(self, pipe_name, None)
+            if pipe_path:
+                try:
+                    os.unlink(pipe_path)
+                except FileNotFoundError:
+                    # it seems like we keep calling this twice. no idea why, but we don't need the resulting error.
+                    pass
+                except Exception:
+                    logger.exception("try_delete_pipes()")
+
+    def try_create_configs(self, command):
+        if "{direwolf_config}" in command:
+            self.direwolf_config = "{tmp_dir}/openwebrx_direwolf_{myid}.conf".format(
+                tmp_dir=self.temporary_directory, myid=id(self)
+            )
+            self.direwolf_port = KissClient.getFreePort()
+            file = open(self.direwolf_config, "w")
+            file.write(DirewolfConfig().getConfig(self.direwolf_port, self.is_service))
+            file.close()
+        else:
+            self.direwolf_config = None
+            self.direwolf_port = None
+
+    def try_delete_configs(self):
+        if self.direwolf_config:
+            try:
+                os.unlink(self.direwolf_config)
+            except FileNotFoundError:
+                # result suits our expectations. fine :)
+                pass
+            except Exception:
+                logger.exception("try_delete_configs()")
+            self.direwolf_config = None
+
+    def start(self):
+        self.modification_lock.acquire()
+        if self.running:
+            self.modification_lock.release()
+            return
+        self.running = True
+
+        command_base = " | ".join(self.chain(self.demodulator))
+
+        # create control pipes for csdr
+        self.pipe_base_path = "{tmp_dir}/openwebrx_pipe_{myid}_".format(tmp_dir=self.temporary_directory, myid=id(self))
+
+        self.try_create_pipes(self.pipe_names, command_base)
+
+        # run the command
+        command = command_base.format(
+            bpf_pipe=self.bpf_pipe,
+            shift_pipe=self.shift_pipe,
+            decimation=self.decimation,
+            last_decimation=self.last_decimation,
+            fft_size=self.fft_size,
+            fft_block_size=self.fft_block_size(),
+            fft_averages=self.fft_averages,
+            bpf_transition_bw=float(self.bpf_transition_bw) / self.if_samp_rate(),
+            ddc_transition_bw=self.ddc_transition_bw(),
+            flowcontrol=int(self.samp_rate * 2),
+            start_bufsize=self.base_bufsize * self.decimation,
+            nc_port=self.nc_port,
+            squelch_pipe=self.squelch_pipe,
+            smeter_pipe=self.smeter_pipe,
+            meta_pipe=self.meta_pipe,
+            iqtee_pipe=self.iqtee_pipe,
+            iqtee2_pipe=self.iqtee2_pipe,
+            output_rate=self.get_output_rate(),
+            smeter_report_every=int(self.if_samp_rate() / 6000),
+            unvoiced_quality=self.get_unvoiced_quality(),
+            dmr_control_pipe=self.dmr_control_pipe,
+            audio_rate=self.get_audio_rate(),
+        )
+
+        logger.debug("Command = %s", command)
+        my_env = os.environ.copy()
+        if self.csdr_dynamic_bufsize:
+            my_env["CSDR_DYNAMIC_BUFSIZE_ON"] = "1"
+        if self.csdr_print_bufsizes:
+            my_env["CSDR_PRINT_BUFSIZES"] = "1"
+
+        out = subprocess.PIPE if self.output.supports_type("audio") else subprocess.DEVNULL
+        self.process = subprocess.Popen(command, stdout=out, shell=True, start_new_session=True, env=my_env)
+
+        def watch_thread():
+            rc = self.process.wait()
+            logger.debug("dsp thread ended with rc=%d", rc)
+            if rc == 0 and self.running and not self.modification_lock.locked():
+                logger.debug("restarting since rc = 0, self.running = true, and no modification")
+                self.restart()
+
+        threading.Thread(target=watch_thread).start()
+
+        if self.output.supports_type("audio"):
+            self.output.send_output(
+                "audio",
+                partial(
+                    self.process.stdout.read,
+                    self.get_fft_bytes_to_read() if self.demodulator == "fft" else self.get_audio_bytes_to_read(),
+                ),
+            )
+
+        # open control pipes for csdr
+        if self.bpf_pipe:
+            self.bpf_pipe_file = open(self.bpf_pipe, "w")
+        if self.shift_pipe:
+            self.shift_pipe_file = open(self.shift_pipe, "w")
+        if self.squelch_pipe:
+            self.squelch_pipe_file = open(self.squelch_pipe, "w")
+        self.start_secondary_demodulator()
+
+        self.modification_lock.release()
+
+        # send initial config through the pipes
+        if self.squelch_pipe:
+            self.set_squelch_level(self.squelch_level)
+        if self.shift_pipe:
+            self.set_offset_freq(self.offset_freq)
+        if self.bpf_pipe:
+            self.set_bpf(self.low_cut, self.high_cut)
+        if self.smeter_pipe:
+            self.smeter_pipe_file = open(self.smeter_pipe, "r")
+
+            def read_smeter():
+                raw = self.smeter_pipe_file.readline()
+                if len(raw) == 0:
+                    return None
+                else:
+                    return float(raw.rstrip("\n"))
+
+            self.output.send_output("smeter", read_smeter)
+        if self.meta_pipe != None:
+            # TODO make digiham output unicode and then change this here
+            self.meta_pipe_file = open(self.meta_pipe, "r", encoding="cp437")
+
+            def read_meta():
+                raw = self.meta_pipe_file.readline()
+                if len(raw) == 0:
+                    return None
+                else:
+                    return raw.rstrip("\n")
+
+            self.output.send_output("meta", read_meta)
+
+        if self.dmr_control_pipe:
+            self.dmr_control_pipe_file = open(self.dmr_control_pipe, "w")
+
+    def stop(self):
+        self.modification_lock.acquire()
+        self.running = False
+        if hasattr(self, "process"):
+            try:
+                os.killpg(os.getpgid(self.process.pid), signal.SIGTERM)
+            except ProcessLookupError:
+                # been killed by something else, ignore
+                pass
+        self.stop_secondary_demodulator()
+
+        self.try_delete_pipes(self.pipe_names)
+
+        self.modification_lock.release()
+
+    def restart(self):
+        if not self.running:
+            return
+        self.stop()
+        self.start()
+
+    def __del__(self):
+        self.stop()
+        del self.process

debian/changelog

@@ -0,0 +1,5 @@
+openwebrx (0.18) UNRELEASED; urgency=low
+
+  * Initial release.
+
+ -- Jakob Ketterl <jakob.ketterl@gmx.de>  Sun, 08 Dec 2019 12:35:48 +0000

debian/compat

@@ -0,0 +1 @@
+10

debian/control

@@ -0,0 +1,13 @@
+Source: openwebrx
+Maintainer: Jakob Ketterl <jakob.ketterl@gmx.de>
+Section: hamradio
+Priority: optional
+Standards-Version: 4.2.0
+Build-Depends: debhelper (>= 10), dh-python, python3 (>= 3.5), dh-systemd (>= 1.5)
+
+Package: openwebrx
+Architecture: all
+Depends: python3 (>= 3.5), python3-pkg-resources, csdr (>= 0.14), netcat, owrx-connector (>= 0.1), ${python3:Depends}
+Recommends: digiham (>= 0.3), dsd (>= 1.7), sox, direwolf (>= 1.4), wsjtx
+Description: multi-user web sdr
+ Open source, multi-user SDR receiver with a web interface

debian/openwebrx.install

@@ -0,0 +1,4 @@
+config_webrx.py etc/openwebrx/
+bands.json etc/openwebrx/
+bookmarks.json etc/openwebrx/
+systemd/openwebrx.service lib/systemd/system/

debian/rules

@@ -0,0 +1,5 @@
+#!/usr/bin/make -f
+export PYBUILD_NAME=openwebrx
+
+%:
+	dh $@ --with python3 --buildsystem=pybuild --with systemd

debian/source/format

@@ -0,0 +1 @@
+3.0 (native)

docker/Dockerfiles/Dockerfile-airspy

@@ -0,0 +1,10 @@
+ARG ARCHTAG
+FROM openwebrx-soapysdr-base:$ARCHTAG
+
+ADD docker/scripts/install-dependencies-airspy.sh /
+RUN /install-dependencies-airspy.sh
+RUN rm /install-dependencies-airspy.sh
+
+ADD docker/scripts/install-connectors.sh /
+RUN /install-connectors.sh
+RUN rm /install-connectors.sh

docker/Dockerfiles/Dockerfile-base

@@ -0,0 +1,19 @@
+FROM alpine:3.10
+
+RUN apk add --no-cache bash
+
+RUN ln -s /usr/local/lib /usr/local/lib64
+
+ADD docker/scripts/direwolf-1.5.patch /
+ADD docker/scripts/install-dependencies.sh /
+RUN /install-dependencies.sh
+RUN rm /install-dependencies.sh
+
+ADD . /opt/openwebrx
+
+WORKDIR /opt/openwebrx
+
+VOLUME /etc/openwebrx
+
+ENTRYPOINT [ "/opt/openwebrx/docker/scripts/run.sh" ]
+EXPOSE 8073

docker/Dockerfiles/Dockerfile-full

@@ -0,0 +1,17 @@
+ARG ARCHTAG
+FROM openwebrx-base:$ARCHTAG
+
+ADD docker/scripts/install-dependencies-*.sh /
+ADD docker/scripts/install-lib.*.patch /
+
+RUN /install-dependencies-rtlsdr.sh
+RUN /install-dependencies-hackrf.sh
+RUN /install-dependencies-soapysdr.sh
+RUN /install-dependencies-sdrplay.sh
+RUN /install-dependencies-airspy.sh
+RUN /install-dependencies-rtlsdr-soapy.sh
+RUN rm /install-dependencies-*.sh
+
+ADD docker/scripts/install-connectors.sh /
+RUN /install-connectors.sh
+RUN rm /install-connectors.sh

docker/Dockerfiles/Dockerfile-hackrf

@@ -0,0 +1,7 @@
+ARG ARCHTAG
+FROM openwebrx-base:$ARCHTAG
+
+ADD docker/scripts/install-dependencies-hackrf.sh /
+RUN /install-dependencies-hackrf.sh
+RUN rm /install-dependencies-hackrf.sh
+

docker/Dockerfiles/Dockerfile-rtlsdr

@@ -0,0 +1,10 @@
+ARG ARCHTAG
+FROM openwebrx-base:$ARCHTAG
+
+ADD docker/scripts/install-dependencies-rtlsdr.sh /
+RUN /install-dependencies-rtlsdr.sh
+RUN rm /install-dependencies-rtlsdr.sh
+
+ADD docker/scripts/install-connectors.sh /
+RUN /install-connectors.sh
+RUN rm /install-connectors.sh

docker/Dockerfiles/Dockerfile-rtlsdr-soapy

@@ -0,0 +1,10 @@
+ARG ARCHTAG
+FROM openwebrx-soapysdr-base:$ARCHTAG
+
+ADD docker/scripts/install-dependencies-rtlsdr-soapy.sh /
+RUN /install-dependencies-rtlsdr-soapy.sh
+RUN rm /install-dependencies-rtlsdr-soapy.sh
+
+ADD docker/scripts/install-connectors.sh /
+RUN /install-connectors.sh
+RUN rm /install-connectors.sh

docker/Dockerfiles/Dockerfile-sdrplay

@@ -0,0 +1,11 @@
+ARG ARCHTAG
+FROM openwebrx-soapysdr-base:$ARCHTAG
+
+ADD docker/scripts/install-dependencies-sdrplay.sh /
+ADD docker/scripts/install-lib.*.patch /
+RUN /install-dependencies-sdrplay.sh
+RUN rm /install-dependencies-sdrplay.sh
+
+ADD docker/scripts/install-connectors.sh /
+RUN /install-connectors.sh
+RUN rm /install-connectors.sh

docker/Dockerfiles/Dockerfile-soapysdr

@@ -0,0 +1,7 @@
+ARG ARCHTAG
+FROM openwebrx-base:$ARCHTAG
+
+ADD docker/scripts/install-dependencies-soapysdr.sh /
+RUN /install-dependencies-soapysdr.sh
+RUN rm /install-dependencies-soapysdr.sh
+

docker/scripts/direwolf-1.5.patch

@@ -0,0 +1,241 @@
+diff --git a/Makefile.linux b/Makefile.linux
+index 5010833..3f61de9 100644
+--- a/Makefile.linux
++++ b/Makefile.linux
+@@ -585,102 +585,102 @@ install : $(APPS) direwolf.conf tocalls.txt symbols-new.txt symbolsX.txt dw-icon
+ # Applications, not installed with package manager, normally go in /usr/local/bin.
+ # /usr/bin is used instead when installing from .DEB or .RPM package.
+ #
+-	$(INSTALL) -D --mode=755 direwolf $(DESTDIR)/bin/direwolf
+-	$(INSTALL) -D --mode=755 decode_aprs $(DESTDIR)/bin/decode_aprs
+-	$(INSTALL) -D --mode=755 text2tt $(DESTDIR)/bin/text2tt
+-	$(INSTALL) -D --mode=755 tt2text $(DESTDIR)/bin/tt2text
+-	$(INSTALL) -D --mode=755 ll2utm $(DESTDIR)/bin/ll2utm
+-	$(INSTALL) -D --mode=755 utm2ll $(DESTDIR)/bin/utm2ll
+-	$(INSTALL) -D --mode=755 aclients $(DESTDIR)/bin/aclients
+-	$(INSTALL) -D --mode=755 log2gpx $(DESTDIR)/bin/log2gpx
+-	$(INSTALL) -D --mode=755 gen_packets $(DESTDIR)/bin/gen_packets
+-	$(INSTALL) -D --mode=755 atest $(DESTDIR)/bin/atest
+-	$(INSTALL) -D --mode=755 ttcalc $(DESTDIR)/bin/ttcalc
+-	$(INSTALL) -D --mode=755 kissutil $(DESTDIR)/bin/kissutil
+-	$(INSTALL) -D --mode=755 cm108 $(DESTDIR)/bin/cm108
+-	$(INSTALL) -D --mode=755 dwespeak.sh $(DESTDIR)/bin/dwspeak.sh
++	$(INSTALL) -D -m=755 direwolf $(DESTDIR)/bin/direwolf
++	$(INSTALL) -D -m=755 decode_aprs $(DESTDIR)/bin/decode_aprs
++	$(INSTALL) -D -m=755 text2tt $(DESTDIR)/bin/text2tt
++	$(INSTALL) -D -m=755 tt2text $(DESTDIR)/bin/tt2text
++	$(INSTALL) -D -m=755 ll2utm $(DESTDIR)/bin/ll2utm
++	$(INSTALL) -D -m=755 utm2ll $(DESTDIR)/bin/utm2ll
++	$(INSTALL) -D -m=755 aclients $(DESTDIR)/bin/aclients
++	$(INSTALL) -D -m=755 log2gpx $(DESTDIR)/bin/log2gpx
++	$(INSTALL) -D -m=755 gen_packets $(DESTDIR)/bin/gen_packets
++	$(INSTALL) -D -m=755 atest $(DESTDIR)/bin/atest
++	$(INSTALL) -D -m=755 ttcalc $(DESTDIR)/bin/ttcalc
++	$(INSTALL) -D -m=755 kissutil $(DESTDIR)/bin/kissutil
++	$(INSTALL) -D -m=755 cm108 $(DESTDIR)/bin/cm108
++	$(INSTALL) -D -m=755 dwespeak.sh $(DESTDIR)/bin/dwspeak.sh
+ #
+ # Telemetry Toolkit executables.   Other .conf and .txt files will go into doc directory.
+ #
+-	$(INSTALL) -D --mode=755 telemetry-toolkit/telem-balloon.pl $(DESTDIR)/bin/telem-balloon.pl
+-	$(INSTALL) -D --mode=755 telemetry-toolkit/telem-bits.pl $(DESTDIR)/bin/telem-bits.pl
+-	$(INSTALL) -D --mode=755 telemetry-toolkit/telem-data.pl $(DESTDIR)/bin/telem-data.pl
+-	$(INSTALL) -D --mode=755 telemetry-toolkit/telem-data91.pl $(DESTDIR)/bin/telem-data91.pl
+-	$(INSTALL) -D --mode=755 telemetry-toolkit/telem-eqns.pl $(DESTDIR)/bin/telem-eqns.pl
+-	$(INSTALL) -D --mode=755 telemetry-toolkit/telem-parm.pl $(DESTDIR)/bin/telem-parm.pl
+-	$(INSTALL) -D --mode=755 telemetry-toolkit/telem-seq.sh $(DESTDIR)/bin/telem-seq.sh
+-	$(INSTALL) -D --mode=755 telemetry-toolkit/telem-unit.pl $(DESTDIR)/bin/telem-unit.pl
+-	$(INSTALL) -D --mode=755 telemetry-toolkit/telem-volts.py $(DESTDIR)/bin/telem-volts.py
++	$(INSTALL) -D -m=755 telemetry-toolkit/telem-balloon.pl $(DESTDIR)/bin/telem-balloon.pl
++	$(INSTALL) -D -m=755 telemetry-toolkit/telem-bits.pl $(DESTDIR)/bin/telem-bits.pl
++	$(INSTALL) -D -m=755 telemetry-toolkit/telem-data.pl $(DESTDIR)/bin/telem-data.pl
++	$(INSTALL) -D -m=755 telemetry-toolkit/telem-data91.pl $(DESTDIR)/bin/telem-data91.pl
++	$(INSTALL) -D -m=755 telemetry-toolkit/telem-eqns.pl $(DESTDIR)/bin/telem-eqns.pl
++	$(INSTALL) -D -m=755 telemetry-toolkit/telem-parm.pl $(DESTDIR)/bin/telem-parm.pl
++	$(INSTALL) -D -m=755 telemetry-toolkit/telem-seq.sh $(DESTDIR)/bin/telem-seq.sh
++	$(INSTALL) -D -m=755 telemetry-toolkit/telem-unit.pl $(DESTDIR)/bin/telem-unit.pl
++	$(INSTALL) -D -m=755 telemetry-toolkit/telem-volts.py $(DESTDIR)/bin/telem-volts.py
+ #
+ # Misc. data such as "tocall" to system mapping.
+ #
+-	$(INSTALL) -D --mode=644 tocalls.txt $(DESTDIR)/share/direwolf/tocalls.txt
+-	$(INSTALL) -D --mode=644 symbols-new.txt $(DESTDIR)/share/direwolf/symbols-new.txt
+-	$(INSTALL) -D --mode=644 symbolsX.txt $(DESTDIR)/share/direwolf/symbolsX.txt
++	$(INSTALL) -D -m=644 tocalls.txt $(DESTDIR)/share/direwolf/tocalls.txt
++	$(INSTALL) -D -m=644 symbols-new.txt $(DESTDIR)/share/direwolf/symbols-new.txt
++	$(INSTALL) -D -m=644 symbolsX.txt $(DESTDIR)/share/direwolf/symbolsX.txt
+ #
+ # For desktop icon.
+ #
+-	$(INSTALL) -D --mode=644 dw-icon.png $(DESTDIR)/share/direwolf/pixmaps/dw-icon.png
+-	$(INSTALL) -D --mode=644 direwolf.desktop $(DESTDIR)/share/applications/direwolf.desktop
++	$(INSTALL) -D -m=644 dw-icon.png $(DESTDIR)/share/direwolf/pixmaps/dw-icon.png
++	$(INSTALL) -D -m=644 direwolf.desktop $(DESTDIR)/share/applications/direwolf.desktop
+ #
+ # Documentation.  Various plain text files and PDF.
+ #
+-	$(INSTALL) -D --mode=644 CHANGES.md $(DESTDIR)/share/doc/direwolf/CHANGES.md
+-	$(INSTALL) -D --mode=644 LICENSE-dire-wolf.txt $(DESTDIR)/share/doc/direwolf/LICENSE-dire-wolf.txt
+-	$(INSTALL) -D --mode=644 LICENSE-other.txt $(DESTDIR)/share/doc/direwolf/LICENSE-other.txt
++	$(INSTALL) -D -m=644 CHANGES.md $(DESTDIR)/share/doc/direwolf/CHANGES.md
++	$(INSTALL) -D -m=644 LICENSE-dire-wolf.txt $(DESTDIR)/share/doc/direwolf/LICENSE-dire-wolf.txt
++	$(INSTALL) -D -m=644 LICENSE-other.txt $(DESTDIR)/share/doc/direwolf/LICENSE-other.txt
+ #
+ # ./README.md is an overview for the project main page.
+ # Maybe we could stick it in some other place.
+ # doc/README.md contains an overview of the PDF file contents and is more useful here.
+ #
+-	$(INSTALL) -D --mode=644 doc/README.md $(DESTDIR)/share/doc/direwolf/README.md
+-	$(INSTALL) -D --mode=644 doc/2400-4800-PSK-for-APRS-Packet-Radio.pdf $(DESTDIR)/share/doc/direwolf/2400-4800-PSK-for-APRS-Packet-Radio.pdf
+-	$(INSTALL) -D --mode=644 doc/A-Better-APRS-Packet-Demodulator-Part-1-1200-baud.pdf $(DESTDIR)/share/doc/direwolf/A-Better-APRS-Packet-Demodulator-Part-1-1200-baud.pdf
+-	$(INSTALL) -D --mode=644 doc/A-Better-APRS-Packet-Demodulator-Part-2-9600-baud.pdf $(DESTDIR)/share/doc/direwolf/A-Better-APRS-Packet-Demodulator-Part-2-9600-baud.pdf
+-	$(INSTALL) -D --mode=644 doc/A-Closer-Look-at-the-WA8LMF-TNC-Test-CD.pdf $(DESTDIR)/share/doc/direwolf/A-Closer-Look-at-the-WA8LMF-TNC-Test-CD.pdf
+-	$(INSTALL) -D --mode=644 doc/APRS-Telemetry-Toolkit.pdf $(DESTDIR)/share/doc/direwolf/APRS-Telemetry-Toolkit.pdf
+-	$(INSTALL) -D --mode=644 doc/APRStt-Implementation-Notes.pdf $(DESTDIR)/share/doc/direwolf/APRStt-Implementation-Notes.pdf
+-	$(INSTALL) -D --mode=644 doc/APRStt-interface-for-SARTrack.pdf $(DESTDIR)/share/doc/direwolf/APRStt-interface-for-SARTrack.pdf
+-	$(INSTALL) -D --mode=644 doc/APRStt-Listening-Example.pdf $(DESTDIR)/share/doc/direwolf/APRStt-Listening-Example.pdf
+-	$(INSTALL) -D --mode=644 doc/Bluetooth-KISS-TNC.pdf $(DESTDIR)/share/doc/direwolf/Bluetooth-KISS-TNC.pdf
+-	$(INSTALL) -D --mode=644 doc/Going-beyond-9600-baud.pdf $(DESTDIR)/share/doc/direwolf/Going-beyond-9600-baud.pdf
+-	$(INSTALL) -D --mode=644 doc/Raspberry-Pi-APRS.pdf $(DESTDIR)/share/doc/direwolf/Raspberry-Pi-APRS.pdf
+-	$(INSTALL) -D --mode=644 doc/Raspberry-Pi-APRS-Tracker.pdf $(DESTDIR)/share/doc/direwolf/Raspberry-Pi-APRS-Tracker.pdf
+-	$(INSTALL) -D --mode=644 doc/Raspberry-Pi-SDR-IGate.pdf $(DESTDIR)/share/doc/direwolf/Raspberry-Pi-SDR-IGate.pdf
+-	$(INSTALL) -D --mode=644 doc/Successful-APRS-IGate-Operation.pdf $(DESTDIR)/share/doc/direwolf/Successful-APRS-IGate-Operation.pdf
+-	$(INSTALL) -D --mode=644 doc/User-Guide.pdf $(DESTDIR)/share/doc/direwolf/User-Guide.pdf
+-	$(INSTALL) -D --mode=644 doc/WA8LMF-TNC-Test-CD-Results.pdf $(DESTDIR)/share/doc/direwolf/WA8LMF-TNC-Test-CD-Results.pdf
++	$(INSTALL) -D -m=644 doc/README.md $(DESTDIR)/share/doc/direwolf/README.md
++	$(INSTALL) -D -m=644 doc/2400-4800-PSK-for-APRS-Packet-Radio.pdf $(DESTDIR)/share/doc/direwolf/2400-4800-PSK-for-APRS-Packet-Radio.pdf
++	$(INSTALL) -D -m=644 doc/A-Better-APRS-Packet-Demodulator-Part-1-1200-baud.pdf $(DESTDIR)/share/doc/direwolf/A-Better-APRS-Packet-Demodulator-Part-1-1200-baud.pdf
++	$(INSTALL) -D -m=644 doc/A-Better-APRS-Packet-Demodulator-Part-2-9600-baud.pdf $(DESTDIR)/share/doc/direwolf/A-Better-APRS-Packet-Demodulator-Part-2-9600-baud.pdf
++	$(INSTALL) -D -m=644 doc/A-Closer-Look-at-the-WA8LMF-TNC-Test-CD.pdf $(DESTDIR)/share/doc/direwolf/A-Closer-Look-at-the-WA8LMF-TNC-Test-CD.pdf
++	$(INSTALL) -D -m=644 doc/APRS-Telemetry-Toolkit.pdf $(DESTDIR)/share/doc/direwolf/APRS-Telemetry-Toolkit.pdf
++	$(INSTALL) -D -m=644 doc/APRStt-Implementation-Notes.pdf $(DESTDIR)/share/doc/direwolf/APRStt-Implementation-Notes.pdf
++	$(INSTALL) -D -m=644 doc/APRStt-interface-for-SARTrack.pdf $(DESTDIR)/share/doc/direwolf/APRStt-interface-for-SARTrack.pdf
++	$(INSTALL) -D -m=644 doc/APRStt-Listening-Example.pdf $(DESTDIR)/share/doc/direwolf/APRStt-Listening-Example.pdf
++	$(INSTALL) -D -m=644 doc/Bluetooth-KISS-TNC.pdf $(DESTDIR)/share/doc/direwolf/Bluetooth-KISS-TNC.pdf
++	$(INSTALL) -D -m=644 doc/Going-beyond-9600-baud.pdf $(DESTDIR)/share/doc/direwolf/Going-beyond-9600-baud.pdf
++	$(INSTALL) -D -m=644 doc/Raspberry-Pi-APRS.pdf $(DESTDIR)/share/doc/direwolf/Raspberry-Pi-APRS.pdf
++	$(INSTALL) -D -m=644 doc/Raspberry-Pi-APRS-Tracker.pdf $(DESTDIR)/share/doc/direwolf/Raspberry-Pi-APRS-Tracker.pdf
++	$(INSTALL) -D -m=644 doc/Raspberry-Pi-SDR-IGate.pdf $(DESTDIR)/share/doc/direwolf/Raspberry-Pi-SDR-IGate.pdf
++	$(INSTALL) -D -m=644 doc/Successful-APRS-IGate-Operation.pdf $(DESTDIR)/share/doc/direwolf/Successful-APRS-IGate-Operation.pdf
++	$(INSTALL) -D -m=644 doc/User-Guide.pdf $(DESTDIR)/share/doc/direwolf/User-Guide.pdf
++	$(INSTALL) -D -m=644 doc/WA8LMF-TNC-Test-CD-Results.pdf $(DESTDIR)/share/doc/direwolf/WA8LMF-TNC-Test-CD-Results.pdf
+ #
+ # Various sample config and other files go into examples under the doc directory.
+ # When building from source, these can be put in home directory with "make install-conf".
+ # When installed from .DEB or .RPM package, the user will need to copy these to
+ # the home directory or other desired location.
+ #
+-	$(INSTALL) -D --mode=644 direwolf.conf $(DESTDIR)/share/doc/direwolf/examples/direwolf.conf
+-	$(INSTALL) -D --mode=755 dw-start.sh $(DESTDIR)/share/doc/direwolf/examples/dw-start.sh
+-	$(INSTALL) -D --mode=644 sdr.conf $(DESTDIR)/share/doc/direwolf/examples/sdr.conf
+-	$(INSTALL) -D --mode=644 telemetry-toolkit/telem-m0xer-3.txt $(DESTDIR)/share/doc/direwolf/examples/telem-m0xer-3.txt
+-	$(INSTALL) -D --mode=644 telemetry-toolkit/telem-balloon.conf $(DESTDIR)/share/doc/direwolf/examples/telem-balloon.conf
+-	$(INSTALL) -D --mode=644 telemetry-toolkit/telem-volts.conf $(DESTDIR)/share/doc/direwolf/examples/telem-volts.conf
++	$(INSTALL) -D -m=644 direwolf.conf $(DESTDIR)/share/doc/direwolf/examples/direwolf.conf
++	$(INSTALL) -D -m=755 dw-start.sh $(DESTDIR)/share/doc/direwolf/examples/dw-start.sh
++	$(INSTALL) -D -m=644 sdr.conf $(DESTDIR)/share/doc/direwolf/examples/sdr.conf
++	$(INSTALL) -D -m=644 telemetry-toolkit/telem-m0xer-3.txt $(DESTDIR)/share/doc/direwolf/examples/telem-m0xer-3.txt
++	$(INSTALL) -D -m=644 telemetry-toolkit/telem-balloon.conf $(DESTDIR)/share/doc/direwolf/examples/telem-balloon.conf
++	$(INSTALL) -D -m=644 telemetry-toolkit/telem-volts.conf $(DESTDIR)/share/doc/direwolf/examples/telem-volts.conf
+ #
+ # "man" pages
+ #
+-	$(INSTALL) -D --mode=644 man1/aclients.1 $(DESTDIR)/share/man/man1/aclients.1
+-	$(INSTALL) -D --mode=644 man1/atest.1 $(DESTDIR)/share/man/man1/atest.1
+-	$(INSTALL) -D --mode=644 man1/decode_aprs.1 $(DESTDIR)/share/man/man1/decode_aprs.1
+-	$(INSTALL) -D --mode=644 man1/direwolf.1 $(DESTDIR)/share/man/man1/direwolf.1
+-	$(INSTALL) -D --mode=644 man1/gen_packets.1 $(DESTDIR)/share/man/man1/gen_packets.1
+-	$(INSTALL) -D --mode=644 man1/kissutil.1 $(DESTDIR)/share/man/man1/kissutil.1
+-	$(INSTALL) -D --mode=644 man1/ll2utm.1 $(DESTDIR)/share/man/man1/ll2utm.1
+-	$(INSTALL) -D --mode=644 man1/log2gpx.1 $(DESTDIR)/share/man/man1/log2gpx.1
+-	$(INSTALL) -D --mode=644 man1/text2tt.1 $(DESTDIR)/share/man/man1/text2tt.1
+-	$(INSTALL) -D --mode=644 man1/tt2text.1 $(DESTDIR)/share/man/man1/tt2text.1
+-	$(INSTALL) -D --mode=644 man1/utm2ll.1 $(DESTDIR)/share/man/man1/utm2ll.1
++	$(INSTALL) -D -m=644 man1/aclients.1 $(DESTDIR)/share/man/man1/aclients.1
++	$(INSTALL) -D -m=644 man1/atest.1 $(DESTDIR)/share/man/man1/atest.1
++	$(INSTALL) -D -m=644 man1/decode_aprs.1 $(DESTDIR)/share/man/man1/decode_aprs.1
++	$(INSTALL) -D -m=644 man1/direwolf.1 $(DESTDIR)/share/man/man1/direwolf.1
++	$(INSTALL) -D -m=644 man1/gen_packets.1 $(DESTDIR)/share/man/man1/gen_packets.1
++	$(INSTALL) -D -m=644 man1/kissutil.1 $(DESTDIR)/share/man/man1/kissutil.1
++	$(INSTALL) -D -m=644 man1/ll2utm.1 $(DESTDIR)/share/man/man1/ll2utm.1
++	$(INSTALL) -D -m=644 man1/log2gpx.1 $(DESTDIR)/share/man/man1/log2gpx.1
++	$(INSTALL) -D -m=644 man1/text2tt.1 $(DESTDIR)/share/man/man1/text2tt.1
++	$(INSTALL) -D -m=644 man1/tt2text.1 $(DESTDIR)/share/man/man1/tt2text.1
++	$(INSTALL) -D -m=644 man1/utm2ll.1 $(DESTDIR)/share/man/man1/utm2ll.1
+ #
+ # Set group and mode of HID devices corresponding to C-Media USB Audio adapters.
+ # This will allow us to use the CM108/CM119 GPIO pins for PTT.
+ #
+-	$(INSTALL) -D --mode=644 99-direwolf-cmedia.rules /etc/udev/rules.d/99-direwolf-cmedia.rules
++	$(INSTALL) -D -m=644 99-direwolf-cmedia.rules /etc/udev/rules.d/99-direwolf-cmedia.rules
+ #
+ 	@echo " "
+ 	@echo "If this is your first install, not an upgrade, type this to put a copy"
+diff --git a/cdigipeater.c b/cdigipeater.c
+index 9c40d95..94112e9 100644
+--- a/cdigipeater.c
++++ b/cdigipeater.c
+@@ -49,7 +49,7 @@
+ #include <stdio.h>
+ #include <ctype.h>	/* for isdigit, isupper */
+ #include "regex.h"
+-#include <sys/unistd.h>
++#include <unistd.h>
+ 
+ #include "ax25_pad.h"
+ #include "cdigipeater.h"
+diff --git a/decode_aprs.c b/decode_aprs.c
+index 35c186b..a620cb3 100644
+--- a/decode_aprs.c
++++ b/decode_aprs.c
+@@ -3872,11 +3872,7 @@ static void decode_tocall (decode_aprs_t *A, char *dest)
+  * models before getting to the more generic APY.
+  */
+ 
+-#if defined(__WIN32__) || defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__APPLE__)
+ 	    qsort (tocalls, num_tocalls, sizeof(struct tocalls_s), tocall_cmp);
+-#else
+-	    qsort (tocalls, num_tocalls, sizeof(struct tocalls_s), (__compar_fn_t)tocall_cmp);
+-#endif
+ 	  }
+ 	  else {
+ 	    if ( ! A->g_quiet) {
+diff --git a/digipeater.c b/digipeater.c
+index 36970d7..5195582 100644
+--- a/digipeater.c
++++ b/digipeater.c
+@@ -62,7 +62,7 @@
+ #include <stdio.h>
+ #include <ctype.h>	/* for isdigit, isupper */
+ #include "regex.h"
+-#include <sys/unistd.h>
++#include <unistd.h>
+ 
+ #include "ax25_pad.h"
+ #include "digipeater.h"
+diff --git a/direwolf.h b/direwolf.h
+index 514bcc5..52f5ae9 100644
+--- a/direwolf.h
++++ b/direwolf.h
+@@ -274,7 +274,7 @@ char *strtok_r(char *str, const char *delim, char **saveptr);
+ char *strcasestr(const char *S, const char *FIND);
+ 
+ 
+-#if defined(__OpenBSD__) || defined(__FreeBSD__) || defined(__APPLE__)
++#if 1
+ 
+ // strlcpy and strlcat should be in string.h and the C library.
+ 
+diff --git a/multi_modem.c b/multi_modem.c
+index 5d96c79..24261b9 100644
+--- a/multi_modem.c
++++ b/multi_modem.c
+@@ -80,7 +80,7 @@
+ #include <string.h>
+ #include <assert.h>
+ #include <stdio.h>
+-#include <sys/unistd.h>
++#include <unistd.h>
+ 
+ #include "ax25_pad.h"
+ #include "textcolor.h"

docker/scripts/install-connectors.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+set -euxo pipefail
+
+function cmakebuild() {
+  cd $1
+  if [[ ! -z "${2:-}" ]]; then
+    git checkout $2
+  fi
+  mkdir build
+  cd build
+  cmake ..
+  make
+  make install
+  cd ../..
+  rm -rf $1
+}
+
+cd /tmp
+
+BUILD_PACKAGES="git cmake make gcc g++ musl-dev"
+
+apk add --no-cache --virtual .build-deps $BUILD_PACKAGES
+
+
+git clone https://github.com/jketterl/owrx_connector.git
+cmakebuild owrx_connector df35e33e42c2e4527853ca18bf04981848860317
+
+apk del .build-deps

docker/scripts/install-dependencies-airspy.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+set -euxo pipefail
+
+function cmakebuild() {
+  cd $1
+  if [[ ! -z "${2:-}" ]]; then
+    git checkout $2
+  fi
+  mkdir build
+  cd build
+  cmake ..
+  make
+  make install
+  cd ../..
+  rm -rf $1
+}
+
+cd /tmp
+
+STATIC_PACKAGES="libusb"
+BUILD_PACKAGES="git libusb-dev cmake make gcc musl-dev g++ linux-headers"
+
+apk add --no-cache $STATIC_PACKAGES
+apk add --no-cache --virtual .build-deps $BUILD_PACKAGES
+
+git clone https://github.com/airspy/airspyone_host.git
+cmakebuild airspyone_host bceca18f9e3a5f89cff78c4d949c71771d92dfd3
+
+git clone https://github.com/pothosware/SoapyAirspy.git
+cmakebuild SoapyAirspy 99756be5c3413a2d447baf70cb5a880662452655
+
+git clone https://github.com/airspy/airspyhf.git
+cmakebuild airspyhf 613852a2bb64af42690bf9be2201826af69a9475
+
+git clone https://github.com/pothosware/SoapyAirspyHF.git
+cmakebuild SoapyAirspyHF 54f5487dd96207540b2dd562ff9e718e0588770b
+
+apk del .build-deps

docker/scripts/install-dependencies-hackrf.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+set -euxo pipefail
+
+function cmakebuild() {
+  cd $1
+  if [[ ! -z "${2:-}" ]]; then
+    git checkout $2
+  fi
+  mkdir build
+  cd build
+  cmake ..
+  make
+  make install
+  cd ../..
+  rm -rf $1
+}
+
+cd /tmp
+
+STATIC_PACKAGES="libusb fftw udev"
+BUILD_PACKAGES="git cmake make patch wget sudo gcc g++ libusb-dev fftw-dev"
+
+apk add --no-cache $STATIC_PACKAGES
+apk add --no-cache --virtual .build-deps $BUILD_PACKAGES
+
+git clone https://github.com/mossmann/hackrf.git
+cd hackrf
+git checkout 06eb9192cd348083f5f7de9c0da9ead276020011
+cmakebuild host
+cd ..
+rm -rf hackrf
+
+apk del .build-deps

docker/scripts/install-dependencies-rtlsdr-soapy.sh

@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+function cmakebuild() {
+  cd $1
+  if [[ ! -z "${2:-}" ]]; then
+    git checkout $2
+  fi
+  mkdir build
+  cd build
+  cmake ..
+  make
+  make install
+  cd ../..
+  rm -rf $1
+}
+
+cd /tmp
+
+STATIC_PACKAGES="libusb"
+BUILD_PACKAGES="git libusb-dev cmake make gcc musl-dev g++ linux-headers"
+
+apk add --no-cache $STATIC_PACKAGES
+apk add --no-cache --virtual .build-deps $BUILD_PACKAGES
+
+git clone https://github.com/osmocom/rtl-sdr.git
+cmakebuild rtl-sdr b5af355b1d833b3c898a61cf1e072b59b0ea3440
+
+git clone https://github.com/pothosware/SoapyRTLSDR.git
+cmakebuild SoapyRTLSDR 5c5d9503337c6d1c34b496dec6f908aab9478b0f
+
+apk del .build-deps

docker/scripts/install-dependencies-rtlsdr.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+set -euxo pipefail
+
+function cmakebuild() {
+  cd $1
+  if [[ ! -z "${2:-}" ]]; then
+    git checkout $2
+  fi
+  mkdir build
+  cd build
+  cmake ..
+  make
+  make install
+  cd ../..
+  rm -rf $1
+}
+
+cd /tmp
+
+STATIC_PACKAGES="libusb"
+BUILD_PACKAGES="git libusb-dev cmake make gcc musl-dev g++ linux-headers"
+
+apk add --no-cache $STATIC_PACKAGES
+apk add --no-cache --virtual .build-deps $BUILD_PACKAGES
+
+git clone https://github.com/osmocom/rtl-sdr.git
+cmakebuild rtl-sdr b5af355b1d833b3c898a61cf1e072b59b0ea3440
+
+apk del .build-deps

docker/scripts/install-dependencies-sdrplay.sh

@@ -0,0 +1,53 @@
+#!/bin/bash
+set -euxo pipefail
+
+function cmakebuild() {
+  cd $1
+  if [[ ! -z "${2:-}" ]]; then
+    git checkout $2
+  fi
+  mkdir build
+  cd build
+  cmake ..
+  make
+  make install
+  cd ../..
+  rm -rf $1
+}
+
+cd /tmp
+
+STATIC_PACKAGES="libusb udev"
+BUILD_PACKAGES="git cmake make patch wget sudo gcc g++ libusb-dev"
+
+apk add --no-cache $STATIC_PACKAGES
+apk add --no-cache --virtual .build-deps $BUILD_PACKAGES
+
+ARCH=$(uname -m)
+
+case $ARCH in
+  x86_64)
+    BINARY=SDRplay_RSP_API-Linux-2.13.1.run
+    ;;
+  armv*)
+    BINARY=SDRplay_RSP_API-RPi-2.13.1.run
+    ;;
+  aarch64)
+    BINARY=SDRplay_RSP_API-ARM64-2.13.1.run
+    ;;
+esac
+
+wget https://www.sdrplay.com/software/$BINARY
+sh $BINARY --noexec --target sdrplay
+patch --verbose -Np0 < /install-lib.$ARCH.patch
+
+cd sdrplay
+./install_lib.sh
+cd ..
+rm -rf sdrplay
+rm $BINARY
+
+git clone https://github.com/pothosware/SoapySDRPlay.git
+cmakebuild SoapySDRPlay 14ec39e4ff0dab7ae7fdf1afbbd2d28b49b0ffae
+
+apk del .build-deps

docker/scripts/install-dependencies-soapysdr.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+set -euxo pipefail
+
+function cmakebuild() {
+  cd $1
+  if [[ ! -z "${2:-}" ]]; then
+    git checkout $2
+  fi
+  mkdir build
+  cd build
+  cmake ..
+  make
+  make install
+  cd ../..
+  rm -rf $1
+}
+
+cd /tmp
+
+STATIC_PACKAGES="udev"
+BUILD_PACKAGES="git cmake make patch wget sudo gcc g++"
+
+apk add --no-cache $STATIC_PACKAGES
+apk add --no-cache --virtual .build-deps $BUILD_PACKAGES
+
+git clone https://github.com/pothosware/SoapySDR
+cmakebuild SoapySDR f722f9ce5b629c3c44401a9bf628b3f8e67a9695
+
+apk del .build-deps

docker/scripts/install-dependencies.sh

@@ -0,0 +1,65 @@
+#!/bin/bash
+set -euxo pipefail
+
+function cmakebuild() {
+  cd $1
+  if [[ ! -z "${2:-}" ]]; then
+    git checkout $2
+  fi
+  mkdir build
+  cd build
+  cmake ..
+  make
+  make install
+  cd ../..
+  rm -rf $1
+}
+
+cd /tmp
+
+STATIC_PACKAGES="sox fftw python3 netcat-openbsd libsndfile lapack libusb qt5-qtbase qt5-qtmultimedia qt5-qtserialport qt5-qttools alsa-lib"
+BUILD_PACKAGES="git libsndfile-dev fftw-dev cmake ca-certificates make gcc musl-dev g++ lapack-dev linux-headers autoconf automake libtool texinfo gfortran libusb-dev qt5-qtbase-dev qt5-qtmultimedia-dev qt5-qtserialport-dev qt5-qttools-dev asciidoctor asciidoc alsa-lib-dev linux-headers"
+
+apk add --no-cache $STATIC_PACKAGES
+apk add --no-cache --virtual .build-deps $BUILD_PACKAGES
+
+git clone https://git.code.sf.net/p/itpp/git itpp
+cmakebuild itpp bb5c7e95f40e8fdb5c3f3d01a84bcbaf76f3676d
+
+git clone https://github.com/jketterl/csdr.git
+cd csdr
+git checkout 43c36df5dcd92d3bdb322f9d53f99ca0c7c816a4
+make
+make install
+cd ..
+rm -rf csdr
+
+git clone https://github.com/szechyjs/mbelib.git
+cmakebuild mbelib 9a04ed5c78176a9965f3d43f7aa1b1f5330e771f
+
+git clone https://github.com/jketterl/digiham.git
+cmakebuild digiham e5e11ce9611e3d8f5f9dce7dee97f86a31af107c
+
+git clone https://github.com/f4exb/dsd.git
+cmakebuild dsd f6939f9edbbc6f66261833616391a4e59cb2b3d7
+
+WSJT_DIR=wsjtx-2.1.2
+WSJT_TGZ=${WSJT_DIR}.tgz
+wget http://physics.princeton.edu/pulsar/k1jt/$WSJT_TGZ
+tar xvfz $WSJT_TGZ
+cmakebuild $WSJT_DIR
+
+git clone --depth 1 -b 1.5 https://github.com/wb2osz/direwolf.git
+cd direwolf
+patch -Np1 < /direwolf-1.5.patch
+make
+make install
+cd ..
+rm -rf direwolf
+
+git clone https://github.com/hessu/aprs-symbols /opt/aprs-symbols
+pushd /opt/aprs-symbols
+git checkout 5c2abe2658ee4d2563f3c73b90c6f59124839802
+popd
+
+apk del .build-deps

docker/scripts/install-lib.aarch64.patch

@@ -0,0 +1,40 @@
+--- sdrplay/install_lib.sh	2018-06-21 18:47:08.000000000 +0000
++++ sdrplay/install_lib_patched.sh	2019-12-15 01:49:49.477386963 +0000
+@@ -3,19 +3,7 @@
+ 
+ echo "Installing SDRplay RSP API library 2.13..."
+ 
+-more sdrplay_license.txt
+-
+-while true; do
+-    echo "Press y and RETURN to accept the license agreement and continue with"
+-    read -p "the installation, or press n and RETURN to exit the installer [y/n] " yn
+-    case $yn in
+-        [Yy]* ) break;;
+-        [Nn]* ) exit;;
+-        * ) echo "Please answer y or n";;
+-    esac
+-done
+-
+-export ARCH=`arch`
++export ARCH=`uname -m`
+ export VERS="2.13"
+ 
+ echo "Architecture: ${ARCH}"
+@@ -63,16 +51,6 @@
+     echo " "
+     exit 1
+ fi
+-
+-if /sbin/ldconfig -p | /bin/fgrep -q libusb-1.0; then
+-    echo "Libusb found, continuing..."
+-else
+-    echo " "
+-    echo "ERROR: Libusb cannot be found. Please install libusb and then run"
+-    echo "the installer again. Libusb can be installed from http://libusb.info"
+-    echo " "
+-    exit 1
+-fi
+ 
+ sudo ldconfig
+ 

docker/scripts/install-lib.armv7l.patch

@@ -0,0 +1,40 @@
+--- sdrplay/install_lib.sh
++++ sdrplay/install_lib_patched.sh
+@@ -3,19 +3,7 @@
+ 
+ echo "Installing SDRplay RSP API library 2.13..."
+ 
+-more sdrplay_license.txt
+-
+-while true; do
+-    echo "Press y and RETURN to accept the license agreement and continue with"
+-    read -p "the installation, or press n and RETURN to exit the installer [y/n] " yn
+-    case $yn in
+-        [Yy]* ) break;;
+-        [Nn]* ) exit;;
+-        * ) echo "Please answer y or n";;
+-    esac
+-done
+-
+-export ARCH=`arch`
++export ARCH=`uname -m`
+ export VERS="2.13"
+ 
+ echo "Architecture: ${ARCH}"
+@@ -60,16 +48,6 @@
+     echo "ERROR: udev rules directory not found, add udev support and run the"
+     echo "installer again. udev support can be added by running..."
+     echo "sudo apt-get install libudev-dev"
+-    echo " "
+-    exit 1
+-fi
+-
+-if /sbin/ldconfig -p | /bin/fgrep -q libusb-1.0; then
+-    echo "Libusb found, continuing..."
+-else
+-    echo " "
+-    echo "ERROR: Libusb cannot be found. Please install libusb and then run"
+-    echo "the installer again. Libusb can be installed from http://libusb.info"
+     echo " "
+     exit 1
+ fi

docker/scripts/install-lib.x86_64.patch

@@ -0,0 +1,40 @@
+--- sdrplay/install_lib.sh	2018-06-21 01:57:02.000000000 +0200
++++ sdrplay/install_lib_patched.sh	2019-01-22 17:21:06.445804136 +0100
+@@ -2,19 +2,7 @@
+ 
+ echo "Installing SDRplay RSP API library 2.13..."
+ 
+-more sdrplay_license.txt
+-
+-while true; do
+-    echo "Press y and RETURN to accept the license agreement and continue with"
+-    read -p "the installation, or press n and RETURN to exit the installer [y/n] " yn
+-    case $yn in
+-        [Yy]* ) break;;
+-        [Nn]* ) exit;;
+-        * ) echo "Please answer y or n";;
+-    esac
+-done
+-
+-export ARCH=`arch`
++export ARCH=`uname -m`
+ export VERS="2.13"
+ 
+ echo "Architecture: ${ARCH}"
+@@ -60,16 +48,6 @@
+ 	echo " "
+ 	exit 1
+ fi
+-
+-if /sbin/ldconfig -p | /bin/fgrep -q libusb-1.0; then
+-	echo "Libusb found, continuing..."
+-else
+-	echo " "
+-	echo "ERROR: Libusb cannot be found. Please install libusb and then run"
+-	echo "the installer again. Libusb can be installed from http://libusb.info"
+-	echo " "
+-	exit 1
+-fi
+ 
+ #echo "Installing SoapySDRPlay..."
+ 

docker/scripts/run.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+set -euo pipefail
+
+mkdir -p /etc/openwebrx/
+mkdir -p /tmp/openwebrx/
+if [[ ! -f /etc/openwebrx/config_webrx.py ]] ; then
+  sed 's/temporary_directory = "\/tmp"/temporary_directory = "\/tmp\/openwebrx"/' < "/opt/openwebrx/config_webrx.py" > "/etc/openwebrx/config_webrx.py"
+fi
+if [[ ! -f /etc/openwebrx/bands.json ]] ; then
+  cp bands.json /etc/openwebrx/
+fi
+if [[ ! -f /etc/openwebrx/bookmarks.json ]] ; then
+  cp bookmarks.json /etc/openwebrx/
+fi
+
+
+_term() {
+  echo "Caught signal!" 
+  kill -TERM "$child" 2>/dev/null
+}
+    
+trap _term SIGTERM SIGINT
+
+python3 openwebrx.py $@ &
+
+child=$! 
+wait "$child"
+    

htdocs/css/features.css

@@ -0,0 +1,12 @@
+@import url("openwebrx-header.css");
+@import url("openwebrx-globals.css");
+
+/* expandable photo not implemented on features page */
+#webrx-top-photo-clip {
+    max-height: 67px;
+}
+
+h1 {
+    text-align: center;
+    margin: 50px 0;
+}

htdocs/css/map.css

@@ -0,0 +1,57 @@
+@import url("openwebrx-header.css");
+@import url("openwebrx-globals.css");
+
+/* expandable photo not implemented on map page */
+#webrx-top-photo-clip {
+    max-height: 67px;
+}
+
+body {
+    display: flex;
+    flex-direction: column;
+}
+
+#webrx-top-container {
+    flex: none;
+}
+
+.openwebrx-map {
+    flex: 1 1 auto;
+}
+
+h3 {
+    margin: 10px 0;
+    text-align: center;
+}
+
+ul {
+    margin-block-start: 5px;
+    margin-block-end: 5px;
+    padding-inline-start: 25px;
+}
+
+.openwebrx-map-legend {
+    background-color: #fff;
+    padding: 10px;
+    margin: 10px;
+}
+
+.openwebrx-map-legend ul {
+    list-style-type: none;
+    padding: 0;
+}
+
+.openwebrx-map-legend li.square .illustration {
+    display: inline-block;
+    width: 30px;
+    height: 20px;
+    margin-right: 10px;
+    border-width: 2px;
+    border-style: solid;
+}
+
+.openwebrx-map-legend select {
+    background-color: #FFF;
+    border-color: #DDD;
+    padding: 5px;
+}

htdocs/css/openwebrx-globals.css

@@ -0,0 +1,8 @@
+html, body
+{
+    margin: 0;
+    padding: 0;
+    height: 100%;
+    font-family: "DejaVu Sans", Verdana, Geneva, sans-serif;
+}
+

htdocs/css/openwebrx-header.css

@@ -0,0 +1,195 @@
+#webrx-top-container
+{
+    position: relative;
+    z-index:1000;
+}
+
+#webrx-top-photo
+{
+    width: 100%;
+    display: block;
+}
+
+#webrx-top-photo-clip
+{
+    min-height: 67px;
+    max-height: 350px;
+    overflow: hidden;
+    position: relative;
+}
+
+.webrx-top-bar-parts
+{
+    height:67px;
+}
+
+#webrx-top-bar
+{
+    background: rgba(128, 128, 128, 0.15);
+    margin:0;
+    padding:0;
+    user-select: none;
+    -webkit-touch-callout: none;
+    -webkit-user-select: none;
+    -khtml-user-select: none;
+    -moz-user-select: none;
+    -ms-user-select: none;
+    overflow: hidden;
+    position: absolute;
+    left: 0;
+    top: 0;
+    right: 0;
+}
+
+#webrx-top-logo
+{
+    padding: 12px;
+    float: left;
+}
+
+#webrx-ha5kfu-top-logo
+{
+    float: right;
+    padding: 15px;
+}
+
+#webrx-rx-avatar
+{
+    background-color: rgba(154, 154, 154, .5);
+    border-radius: 7px;
+    float: left;
+    margin: 7px;
+
+    cursor:pointer;
+    width: 46px;
+    height: 46px;
+    padding: 4px;
+    border-radius: 8px;
+    box-sizing: content-box;
+}
+
+#webrx-rx-texts {
+    float: left;
+    padding: 10px;
+}
+
+#webrx-rx-texts div {
+    padding: 3px;
+}
+
+#webrx-rx-title
+{
+    white-space:nowrap;
+    overflow: hidden;
+    cursor:pointer;
+    font-family: "DejaVu Sans", Verdana, Geneva, sans-serif;
+    color: #909090;
+    font-size: 11pt;
+    font-weight: bold;
+}
+
+#webrx-rx-desc
+{
+    white-space:nowrap;
+    overflow: hidden;
+    cursor:pointer;
+    font-size: 10pt;
+    color: #909090;
+}
+
+#webrx-rx-desc a
+{
+    color: #909090;
+}
+
+#openwebrx-rx-details-arrow
+{
+    cursor:pointer;
+    position: absolute;
+    left: 470px;
+    top: 51px;
+}
+
+#openwebrx-rx-details-arrow a
+{
+    margin: 0;
+    padding: 0;
+}
+
+#openwebrx-rx-details-arrow-down
+{
+    display:none;
+}
+
+#openwebrx-main-buttons ul
+{
+    display: table;
+    margin:0;
+}
+
+
+#openwebrx-main-buttons ul li
+{
+    display: table-cell;
+    padding-left: 5px;
+    padding-right: 5px;
+    cursor:pointer;
+}
+
+#openwebrx-main-buttons a {
+    color: inherit;
+    text-decoration: inherit;
+}
+
+#openwebrx-main-buttons li:hover
+{
+    background-color: rgba(255, 255, 255, 0.3);
+}
+
+#openwebrx-main-buttons li:active
+{
+    background-color: rgba(255, 255, 255, 0.55);
+}
+
+
+#openwebrx-main-buttons
+{
+    float: right;
+    margin:0;
+    color: white;
+    text-shadow: 0px 0px 4px #000000;
+    text-align: center;
+    font-size: 9pt;
+    font-weight: bold;
+}
+
+#webrx-rx-photo-title
+{
+    position: absolute;
+    left: 15px;
+    top: 78px;
+    color: White;
+    font-size: 16pt;
+    text-shadow: 1px 1px 4px #444;
+    opacity: 1;
+}
+
+#webrx-rx-photo-desc
+{
+    position: absolute;
+    left: 15px;
+    top: 109px;
+    color: White;
+    font-size: 10pt;
+    font-weight: bold;
+    text-shadow: 0px 0px 6px #444;
+    opacity: 1;
+    line-height: 1.5em;
+}
+
+#webrx-rx-photo-desc a
+{
+    color: #5ca8ff;
+    text-shadow: none;
+}
+

htdocs/features.html

@@ -0,0 +1,22 @@
+<HTML><HEAD>
+    <TITLE>OpenWebRX Feature report</TITLE>
+    <link rel="shortcut icon" type="image/x-icon" href="static/favicon.ico" />
+    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
+    <link rel="stylesheet" href="static/css/features.css">
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/showdown/1.9.0/showdown.min.js"></script>
+    <script src="static/lib/jquery-3.2.1.min.js"></script>
+    <script src="static/features.js"></script>
+</HEAD><BODY>
+    ${header}
+    <div class="container">
+        <h1>OpenWebRX Feature Report</h1>
+        <table class="features table">
+            <tr>
+                <th>Feature</th>
+                <th>Requirement</th>
+                <th>Description</th>
+                <th>Available</th>
+            </tr>
+        </table>
+    </div>
+</BODY></HTML>

htdocs/features.js

@@ -0,0 +1,24 @@
+$(function(){
+    var converter = new showdown.Converter();
+    $.ajax('api/features').done(function(data){
+        var $table = $('table.features');
+        $.each(data, function(name, details) {
+            var requirements = $.map(details.requirements, function(r, name){
+                return '<tr>' +
+                           '<td></td>' +
+                           '<td>' + name + '</td>' +
+                           '<td>' + converter.makeHtml(r.description) + '</td>' +
+                           '<td>' + (r.available ? 'YES' : 'NO') + '</td>' +
+                       '</tr>';
+            });
+            $table.append(
+                '<tr>' +
+                    '<td colspan=2>' + name + '</td>' +
+                    '<td>' + converter.makeHtml(details.description) + '</td>' +
+                    '<td>' + (details.available ? 'YES' : 'NO') + '</td>' +
+                '</tr>' +
+                requirements.join("")
+            );
+        })
+    });
+});

htdocs/gfx/font-expletus-sans/OFL.txt

@@ -1,93 +0,0 @@
-Copyright (c) 2011, Jasper de Waard (jasper@designtown.nl),
-with Reserved Font Name "Expletus Sans".
-This Font Software is licensed under the SIL Open Font License, Version 1.1.
-This license is copied below, and is also available with a FAQ at:
-http://scripts.sil.org/OFL
-
-
------------------------------------------------------------
-SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
------------------------------------------------------------
-
-PREAMBLE
-The goals of the Open Font License (OFL) are to stimulate worldwide
-development of collaborative font projects, to support the font creation
-efforts of academic and linguistic communities, and to provide a free and
-open framework in which fonts may be shared and improved in partnership
-with others.
-
-The OFL allows the licensed fonts to be used, studied, modified and
-redistributed freely as long as they are not sold by themselves. The
-fonts, including any derivative works, can be bundled, embedded, 
-redistributed and/or sold with any software provided that any reserved
-names are not used by derivative works. The fonts and derivatives,
-however, cannot be released under any other type of license. The
-requirement for fonts to remain under this license does not apply
-to any document created using the fonts or their derivatives.
-
-DEFINITIONS
-"Font Software" refers to the set of files released by the Copyright
-Holder(s) under this license and clearly marked as such. This may
-include source files, build scripts and documentation.
-
-"Reserved Font Name" refers to any names specified as such after the
-copyright statement(s).
-
-"Original Version" refers to the collection of Font Software components as
-distributed by the Copyright Holder(s).
-
-"Modified Version" refers to any derivative made by adding to, deleting,
-or substituting -- in part or in whole -- any of the components of the
-Original Version, by changing formats or by porting the Font Software to a
-new environment.
-
-"Author" refers to any designer, engineer, programmer, technical
-writer or other person who contributed to the Font Software.
-
-PERMISSION & CONDITIONS
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of the Font Software, to use, study, copy, merge, embed, modify,
-redistribute, and sell modified and unmodified copies of the Font
-Software, subject to the following conditions:
-
-1) Neither the Font Software nor any of its individual components,
-in Original or Modified Versions, may be sold by itself.
-
-2) Original or Modified Versions of the Font Software may be bundled,
-redistributed and/or sold with any software, provided that each copy
-contains the above copyright notice and this license. These can be
-included either as stand-alone text files, human-readable headers or
-in the appropriate machine-readable metadata fields within text or
-binary files as long as those fields can be easily viewed by the user.
-
-3) No Modified Version of the Font Software may use the Reserved Font
-Name(s) unless explicit written permission is granted by the corresponding
-Copyright Holder. This restriction only applies to the primary font name as
-presented to the users.
-
-4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
-Software shall not be used to promote, endorse or advertise any
-Modified Version, except to acknowledge the contribution(s) of the
-Copyright Holder(s) and the Author(s) or with their explicit written
-permission.
-
-5) The Font Software, modified or unmodified, in part or in whole,
-must be distributed entirely under this license, and must not be
-distributed under any other license. The requirement for fonts to
-remain under this license does not apply to any document created
-using the Font Software.
-
-TERMINATION
-This license becomes null and void if any of the above conditions are
-not met.
-
-DISCLAIMER
-THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
-OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
-COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
-DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
-OTHER DEALINGS IN THE FONT SOFTWARE.

htdocs/gfx/google_maps_pin.svg

@@ -0,0 +1,77 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="5.6444445mm"
+   height="9.847393mm"
+   viewBox="0 0 20 34.892337"
+   id="svg3455"
+   version="1.1"
+   inkscape:version="0.91 r13725"
+   sodipodi:docname="Map Pin.svg">
+  <defs
+     id="defs3457" />
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="12.181359"
+     inkscape:cx="8.4346812"
+     inkscape:cy="14.715224"
+     inkscape:document-units="px"
+     inkscape:current-layer="layer1"
+     showgrid="false"
+     inkscape:window-width="1024"
+     inkscape:window-height="705"
+     inkscape:window-x="-4"
+     inkscape:window-y="-4"
+     inkscape:window-maximized="1"
+     fit-margin-top="0"
+     fit-margin-left="0"
+     fit-margin-right="0"
+     fit-margin-bottom="0" />
+  <metadata
+     id="metadata3460">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(-814.59595,-274.38623)">
+    <g
+       id="g3477"
+       transform="matrix(1.1855854,0,0,1.1855854,-151.17715,-57.3976)">
+      <path
+         sodipodi:nodetypes="sscccccsscs"
+         inkscape:connector-curvature="0"
+         id="path4337-3"
+         d="m 817.11249,282.97118 c -1.25816,1.34277 -2.04623,3.29881 -2.01563,5.13867 0.0639,3.84476 1.79693,5.3002 4.56836,10.59179 0.99832,2.32851 2.04027,4.79237 3.03125,8.87305 0.13772,0.60193 0.27203,1.16104 0.33416,1.20948 0.0621,0.0485 0.19644,-0.51262 0.33416,-1.11455 0.99098,-4.08068 2.03293,-6.54258 3.03125,-8.87109 2.77143,-5.29159 4.50444,-6.74704 4.56836,-10.5918 0.0306,-1.83986 -0.75942,-3.79785 -2.01758,-5.14062 -1.43724,-1.53389 -3.60504,-2.66908 -5.91619,-2.71655 -2.31115,-0.0475 -4.4809,1.08773 -5.91814,2.62162 z"
+         style="display:inline;opacity:1;fill:#ff4646;fill-opacity:1;stroke:#d73534;stroke-width:1;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
+      <circle
+         r="3.0355"
+         cy="288.25278"
+         cx="823.03064"
+         id="path3049"
+         style="display:inline;opacity:1;fill:#590000;fill-opacity:1;stroke-width:0" />
+    </g>
+  </g>
+</svg>

htdocs/inactive.html

@@ -1,85 +0,0 @@
-<html>
-<!--
-
-	This file is part of OpenWebRX, 
-	an open-source SDR receiver software with a web UI.
-	Copyright (c) 2013-2015 by Andras Retzler <randras@sdr.hu>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero General Public License as
-    published by the Free Software Foundation, either version 3 of the
-    License, or (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
--->
-<head><title>OpenWebRX</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<style>
-html, body
-{
-	font-family: "DejaVu Sans", Verdana, Geneva, sans-serif;
-	width: 100%;
-	text-align: center;
-	margin: 0;
-	padding: 0;
-}
-img.logo
-{ 
-	margin-top: 120px;
-}
-div.frame
-{
-	text-align: left;
-	margin:0px auto;
-	width: 800px;
-}
-
-div.panel
-{
-	text-align: center;
-	background-color:#777777; 
-	border-radius: 15px;
-	padding: 12px;
-	font-weight: bold;
-	color: White;
-	font-size: 13pt;
-	/*text-shadow: 1px 1px 4px #444;*/
-	font-family: sans;
-}
-
-div.alt
-{
-	font-size: 10pt;
-	padding-top: 10px;
-}
-
-
-body div a
-{
-	color: #5ca8ff;
-	text-shadow: none;
-}
-
-span.browser
-{
-}
-
-</style>
-</head>
-<body>
-
-<div class="frame">
-	<img class="logo" src="gfx/openwebrx-logo-big.png" style="height: 60px;"/>
-	<div class="panel">
-		Sorry, the receiver is inactive due to internal error.
-	</div>
-</div>
-</body>
-</html>
-

htdocs/include/header.include.html

@@ -0,0 +1,28 @@
+<div id="webrx-top-container">
+    <div id="webrx-top-photo-clip">
+        <img src="static/gfx/openwebrx-top-photo.jpg" id="webrx-top-photo"/>
+        <div id="webrx-top-bar" class="webrx-top-bar-parts">
+            <a href="https://sdr.hu/openwebrx" target="_blank"><img src="static/gfx/openwebrx-top-logo.png" id="webrx-top-logo" /></a>
+            <a href="http://ha5kfu.sch.bme.hu/" target="_blank"><img src="static/gfx/openwebrx-ha5kfu-top-logo.png" id="webrx-ha5kfu-top-logo" /></a>
+            <img id="webrx-rx-avatar" class="openwebrx-photo-trigger" src="static/gfx/openwebrx-avatar.png"/>
+            <div id="webrx-rx-texts">
+                <div id="webrx-rx-title" class="openwebrx-photo-trigger"></div>
+                <div id="webrx-rx-desc" class="openwebrx-photo-trigger"></div>
+            </div>
+            <div id="openwebrx-rx-details-arrow">
+                <a id="openwebrx-rx-details-arrow-up" class="openwebrx-photo-trigger"><img src="static/gfx/openwebrx-rx-details-arrow-up.png" /></a>
+                <a id="openwebrx-rx-details-arrow-down" class="openwebrx-photo-trigger"><img src="static/gfx/openwebrx-rx-details-arrow.png" /></a>
+            </div>
+            <section id="openwebrx-main-buttons">
+                <ul>
+                    <li data-toggle-panel="openwebrx-panel-status"><img src="static/gfx/openwebrx-panel-status.png" /><br/>Status</li>
+                    <li data-toggle-panel="openwebrx-panel-log"><img  src="static/gfx/openwebrx-panel-log.png" /><br/>Log</li>
+                    <li data-toggle-panel="openwebrx-panel-receiver"><img src="static/gfx/openwebrx-panel-receiver.png" /><br/>Receiver</li>
+                    <li><a href="map" target="_blank"><img src="static/gfx/openwebrx-panel-map.png" /><br/>Map</a></li>
+                </ul>
+            </section>
+        </div>
+        <div id="webrx-rx-photo-title"></div>
+        <div id="webrx-rx-photo-desc"></div>
+    </div>
+</div>

htdocs/index.html

@@ -0,0 +1,272 @@
+<!DOCTYPE HTML>
+<!--
+
+    This file is part of OpenWebRX,
+    an open-source SDR receiver software with a web UI.
+    Copyright (c) 2013-2015 by Andras Retzler <randras@sdr.hu>
+    Copyright (c) 2019-2020 by Jakob Ketterl <dd5jfk@darc.de>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation, either version 3 of the
+    License, or (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+-->
+<html>
+    <head>
+        <title>OpenWebRX | Open Source SDR Web App for Everyone!</title>
+        <link rel="shortcut icon" type="image/x-icon" href="static/favicon.ico" />
+        <script src="static/openwebrx.js"></script>
+        <script src="static/lib/jquery-3.2.1.min.js"></script>
+        <script src="static/lib/jquery.nanoscroller.js"></script>
+        <script src="static/lib/BookmarkBar.js"></script>
+        <script src="static/lib/AudioEngine.js"></script>
+        <script src="static/lib/ProgressBar.js"></script>
+        <script src="static/lib/Measurement.js"></script>
+        <script src="static/lib/FrequencyDisplay.js"></script>
+        <link rel="stylesheet" type="text/css" href="static/lib/nanoscroller.css" />
+        <link rel="stylesheet" type="text/css" href="static/css/openwebrx.css" />
+        <meta charset="utf-8">
+    </head>
+    <body onload="openwebrx_init();">
+<div id="webrx-page-container">
+    ${header}
+    <div id="openwebrx-frequency-container">
+        <div id="openwebrx-bookmarks-container"></div>
+        <div id="openwebrx-scale-container">
+            <canvas id="openwebrx-scale-canvas" width="0" height="0"></canvas>
+        </div>
+    </div>
+    <div id="webrx-canvas-background">
+        <div id="webrx-canvas-container">
+            <!-- add canvas here by javascript -->
+        </div>
+    </div>
+    <div id="openwebrx-panels-container">
+        <div id="openwebrx-panels-container-left">
+            <div class="openwebrx-panel" data-panel-name="client-under-devel" style="width: 245px; background-color: Red;">
+                <span style="font-size: 15pt; font-weight: bold;">Under construction</span>
+                <br />We're working on the code right now, so the application might fail.
+            </div>
+            <div class="openwebrx-panel" id="openwebrx-panel-digimodes" style="display: none; width: 619px;" data-panel-name="digimodes">
+                <div id="openwebrx-digimode-canvas-container">
+                    <div id="openwebrx-digimode-select-channel"></div>
+                </div>
+                <div id="openwebrx-digimode-content-container">
+                    <div class="gradient"></div>
+                    <div id="openwebrx-digimode-content">
+                        <span id="openwebrx-cursor-blink"></span>
+                    </div>
+                </div>
+            </div>
+            <table class="openwebrx-panel" id="openwebrx-panel-wsjt-message" style="display: none; width: 619px;" data-panel-name="wsjt-message">
+                <thead><tr>
+                    <th>UTC</th>
+                    <th class="decimal">dB</th>
+                    <th class="decimal">DT</th>
+                    <th class="decimal freq">Freq</th>
+                    <th class="message">Message</th>
+                </tr></thead>
+                <tbody></tbody>
+            </table>
+            <table class="openwebrx-panel" id="openwebrx-panel-packet-message" style="display: none; width: 619px;" data-panel-name="aprs-message">
+                <thead><tr>
+                    <th>UTC</th>
+                    <th class="callsign">Callsign</th>
+                    <th class="coord">Coord</th>
+                    <th class="message">Comment</th>
+                </tr></thead>
+                <tbody></tbody>
+            </table>
+            <table class="openwebrx-panel" id="openwebrx-panel-pocsag-message" style="display: none; width: 619px;" data-panel-name="pocsag-message">
+                <thead><tr>
+                    <th class="address">Address</th>
+                    <th class="message">Message</th>
+                </tr></thead>
+                <tbody></tbody>
+            </table>
+            <div class="openwebrx-panel openwebrx-meta-panel" id="openwebrx-panel-metadata-ysf" style="display: none;" data-panel-name="metadata-ysf">
+                <div class="openwebrx-meta-frame">
+                    <div class="openwebrx-meta-slot">
+                        <div class="openwebrx-ysf-mode openwebrx-meta-autoclear"></div>
+                        <div class="openwebrx-meta-user-image"></div>
+                        <div class="openwebrx-ysf-source openwebrx-meta-autoclear"></div>
+                        <div class="openwebrx-ysf-up openwebrx-meta-autoclear"></div>
+                        <div class="openwebrx-ysf-down openwebrx-meta-autoclear"></div>
+                    </div>
+                </div>
+            </div>
+            <div class="openwebrx-panel openwebrx-meta-panel" id="openwebrx-panel-metadata-dmr" style="display: none;" data-panel-name="metadata-dmr">
+                <div class="openwebrx-meta-frame">
+                    <div class="openwebrx-meta-slot openwebrx-dmr-timeslot-panel">
+                        <div class="openwebrx-dmr-slot">Timeslot 1</div>
+                        <div class="openwebrx-meta-user-image"></div>
+                        <div class="openwebrx-dmr-id openwebrx-meta-autoclear"></div>
+                        <div class="openwebrx-dmr-name openwebrx-meta-autoclear"></div>
+                        <div class="openwebrx-dmr-target openwebrx-meta-autoclear"></div>
+                    </div>
+                    <div class="openwebrx-meta-slot openwebrx-dmr-timeslot-panel">
+                        <div class="openwebrx-dmr-slot">Timeslot 2</div>
+                        <div class="openwebrx-meta-user-image"></div>
+                        <div class="openwebrx-dmr-id openwebrx-meta-autoclear"></div>
+                        <div class="openwebrx-dmr-name openwebrx-meta-autoclear"></div>
+                        <div class="openwebrx-dmr-target openwebrx-meta-autoclear"></div>
+                    </div>
+                </div>
+            </div>
+            <div class="openwebrx-panel" id="openwebrx-panel-log" data-panel-name="debug" style="width: 619px;">
+                <div class="openwebrx-panel-inner nano" id="openwebrx-log-scroll">
+                    <div class="nano-content">
+                        <div id="openwebrx-client-log-title">OpenWebRX client log</div>
+                        <div>Author contact: <a href="http://www.justjakob.de/" target="_blank">Jakob Ketterl, DD5JFK</a></div>
+                        <div id="openwebrx-debugdiv"></div>
+                    </div>
+                </div>
+            </div>
+            <div class="openwebrx-panel" id="openwebrx-panel-status" data-panel-name="status" style="width: 615px;" data-panel-transparent="true">
+                <div class="openwebrx-progressbar" id="openwebrx-bar-audio-buffer"> <span class="openwebrx-progressbar-text">Audio buffer [0 ms]</span><div class="openwebrx-progressbar-bar"></div></div>
+                <div class="openwebrx-progressbar" id="openwebrx-bar-audio-output"> <span class="openwebrx-progressbar-text">Audio output [0 sps]</span><div class="openwebrx-progressbar-bar"></div></div>
+                <div class="openwebrx-progressbar" id="openwebrx-bar-audio-speed"> <span class="openwebrx-progressbar-text">Audio stream [0 kbps]</span><div class="openwebrx-progressbar-bar"></div></div>
+                <div class="openwebrx-progressbar" id="openwebrx-bar-network-speed"> <span class="openwebrx-progressbar-text">Network usage [0 kbps]</span><div class="openwebrx-progressbar-bar"></div></div>
+                <div class="openwebrx-progressbar" id="openwebrx-bar-server-cpu"> <span class="openwebrx-progressbar-text">Server CPU [0%]</span><div class="openwebrx-progressbar-bar"></div></div>
+                <div class="openwebrx-progressbar" id="openwebrx-bar-clients"> <span class="openwebrx-progressbar-text">Clients [1]</span><div class="openwebrx-progressbar-bar"></div></div>
+            </div>
+        </div>
+        <div id="openwebrx-panels-container-right">
+            <div class="openwebrx-panel" id="openwebrx-panel-receiver" data-panel-name="client-params" style="width: 259px;">
+                <div class="openwebrx-panel-line frequencies-container">
+                    <div class="frequencies">
+                        <div id="webrx-actual-freq"></div>
+                        <div id="webrx-mouse-freq"></div>
+                    </div>
+                    <div class="openwebrx-button openwebrx-square-button openwebrx-bookmark-button" style="display:none;" title="Add bookmark...">
+                        <img src="static/gfx/openwebrx-bookmark.png">
+                    </div>
+                </div>
+                <div class="openwebrx-panel-line">
+                    <select id="openwebrx-sdr-profiles-listbox" onchange="sdr_profile_changed();">
+                    </select>
+                </div>
+                <div class="openwebrx-panel-line openwebrx-panel-flex-line">
+                    <div class="openwebrx-button openwebrx-demodulator-button" id="openwebrx-button-nfm"
+                         onclick="demodulator_analog_replace('nfm');">FM</div>
+                    <div class="openwebrx-button openwebrx-demodulator-button" id="openwebrx-button-am"
+                         onclick="demodulator_analog_replace('am');">AM</div>
+                    <div class="openwebrx-button openwebrx-demodulator-button" id="openwebrx-button-lsb"
+                         onclick="demodulator_analog_replace('lsb');">LSB</div>
+                    <div class="openwebrx-button openwebrx-demodulator-button" id="openwebrx-button-usb"
+                         onclick="demodulator_analog_replace('usb');">USB</div>
+                    <div class="openwebrx-button openwebrx-demodulator-button" id="openwebrx-button-cw"
+                         onclick="demodulator_analog_replace('cw');">CW</div>
+                </div>
+                <div class="openwebrx-panel-line openwebrx-panel-flex-line">
+                    <div class="openwebrx-button openwebrx-demodulator-button" id="openwebrx-button-dmr"
+                         style="display:none;" data-feature="digital_voice_digiham"
+                         onclick="demodulator_analog_replace('dmr');">DMR</div>
+                    <div class="openwebrx-button openwebrx-demodulator-button" id="openwebrx-button-dstar"
+                         style="display:none;" data-feature="digital_voice_dsd"
+                         onclick="demodulator_analog_replace('dstar');">DStar</div>
+                    <div class="openwebrx-button openwebrx-demodulator-button" id="openwebrx-button-nxdn"
+                         style="display:none;" data-feature="digital_voice_dsd"
+                         onclick="demodulator_analog_replace('nxdn');">NXDN</div>
+                    <div class="openwebrx-button openwebrx-demodulator-button" id="openwebrx-button-ysf"
+                         style="display:none;" data-feature="digital_voice_digiham"
+                         onclick="demodulator_analog_replace('ysf');">YSF</div>
+                </div>
+                <div class="openwebrx-panel-line openwebrx-panel-flex-line">
+                    <div class="openwebrx-button openwebrx-demodulator-button" id="openwebrx-button-dig" onclick="demodulator_digital_replace_last();">DIG</div>
+                    <select id="openwebrx-secondary-demod-listbox" onchange="secondary_demod_listbox_changed();">
+                        <option value="none"></option>
+                        <option value="bpsk31">BPSK31</option>
+                        <option value="bpsk63">BPSK63</option>
+                        <option value="ft8" data-feature="wsjt-x">FT8</option>
+                        <option value="wspr" data-feature="wsjt-x">WSPR</option>
+                        <option value="jt65" data-feature="wsjt-x">JT65</option>
+                        <option value="jt9" data-feature="wsjt-x">JT9</option>
+                        <option value="ft4" data-feature="wsjt-x">FT4</option>
+                        <option value="packet" data-feature="packet">Packet</option>
+                        <option value="pocsag" data-feature="pocsag">Pocsag</option>
+                    </select>
+                </div>
+                <div class="openwebrx-panel-line">
+                    <div title="Mute on/off" id="openwebrx-mute-off" class="openwebrx-button" onclick="toggleMute();"><img src="static/gfx/openwebrx-speaker.png" class="openwebrx-sliderbtn-img" id="openwebrx-mute-img"></div>
+                    <input title="Volume" id="openwebrx-panel-volume" class="openwebrx-panel-slider" type="range" min="0" max="150" value="50" step="1" onchange="updateVolume()" oninput="updateVolume()">
+                    <div title="Auto-adjust waterfall colors" id="openwebrx-waterfall-colors-auto" class="openwebrx-button" onclick="waterfall_measure_minmax_now=true;"><img src="static/gfx/openwebrx-waterfall-auto.png" class="openwebrx-sliderbtn-img"></div>
+                    <input title="Waterfall minimum level" id="openwebrx-waterfall-color-min" class="openwebrx-panel-slider" type="range" min="-200" max="100" value="50" step="1" onchange="updateWaterfallColors(0);" oninput="updateVolume()">
+                </div>
+                <div class="openwebrx-panel-line">
+                    <div title="Auto-set squelch level" id="openwebrx-squelch-default" class="openwebrx-button" onclick="setSquelchToAuto()"><img src="static/gfx/openwebrx-squelch-button.png" class="openwebrx-sliderbtn-img"></div>
+                    <input title="Squelch" id="openwebrx-panel-squelch" class="openwebrx-panel-slider" type="range" min="-150" max="0" value="-150" step="1" onchange="updateSquelch()" oninput="updateSquelch()">
+                    <div title="Set waterfall colors to default" id="openwebrx-waterfall-colors-default" class="openwebrx-button" onclick="waterfallColorsDefault()"><img src="static/gfx/openwebrx-waterfall-default.png" class="openwebrx-sliderbtn-img"></div>
+                    <input title="Waterfall maximum level" id="openwebrx-waterfall-color-max" class="openwebrx-panel-slider" type="range" min="-200" max="100" value="50" step="1" onchange="updateWaterfallColors(1);" oninput="updateVolume()">
+                </div>
+                <div class="openwebrx-panel-line">
+                    <div class="openwebrx-button openwebrx-square-button" onclick="zoomInOneStep();"  title="Zoom in one step">  <img src="static/gfx/openwebrx-zoom-in.png" /></div>
+                    <div class="openwebrx-button openwebrx-square-button" onclick="zoomOutOneStep();" title="Zoom out one step"> <img src="static/gfx/openwebrx-zoom-out.png" /></div>
+                    <div class="openwebrx-button openwebrx-square-button" onclick="zoomInTotal();"  title="Zoom in totally"><img src="static/gfx/openwebrx-zoom-in-total.png" /></div>
+                    <div class="openwebrx-button openwebrx-square-button" onclick="zoomOutTotal();" title="Zoom out totally"><img src="static/gfx/openwebrx-zoom-out-total.png" /></div>
+                    <div id="openwebrx-smeter-db">0 dB</div>
+                </div>
+                <div class="openwebrx-panel-line">
+                    <div id="openwebrx-smeter-outer">
+                        <div id="openwebrx-smeter-bar"></div>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+    <div id="openwebrx-autoplay-overlay" class="openwebrx-overlay" style="display:none;">
+        <div class="overlay-content">
+            <img id="openwebrx-play-button" src="static/gfx/openwebrx-play-button.png" />
+            <div>Start OpenWebRX</div>
+        </div>
+    </div>
+    <div id="openwebrx-error-overlay" class="openwebrx-overlay" style="display:none;">
+        <div class="overlay-content">
+            <div>This receiver is currently unavailable due to technical issues.</div>
+            <div>Error Message:</div>
+            <div class="errormessage"></div>
+        </div>
+    </div>
+    <div id="openwebrx-dialog-bookmark" class="openwebrx-dialog" style="display:none;">
+        <form>
+            <div class="form-field">
+                <label for="name">Name:</label>
+                <input type="text" id="name" name="name" required="required">
+            </div>
+            <div class="form-field">
+                <label for="frequency">Frequency:</label>
+                <input type="number" id="frequency" name="frequency">
+            </div>
+            <div class="form-field">
+                <label for="modulation">Modulation:</label>
+                <select name="modulation" id="modulation">
+                    <option value="nfm">FM</option>
+                    <option value="am">AM</option>
+                    <option value="usb">USB</option>
+                    <option value="lsb">LSB</option>
+                    <option value="cw">CW</option>
+                    <option value="dmr">DMR</option>
+                    <option value="dstar">D-Star</option>
+                    <option value="nxdn">NXDN</option>
+                    <option value="ysf">YSF</option>
+                </select>
+            </div>
+            <div class="buttons">
+                <div class="openwebrx-button" data-action="cancel">Cancel</div>
+                <div class="openwebrx-button" data-action="submit">Ok</div>
+            </div>
+            <input type="submit" style="display:none;">
+        </form>
+    </div>
+    </body>
+</html>

htdocs/index.wrx

@@ -1,180 +0,0 @@
-<!DOCTYPE HTML>
-<!--
-
-    This file is part of OpenWebRX,
-    an open-source SDR receiver software with a web UI.
-    Copyright (c) 2013-2015 by Andras Retzler <randras@sdr.hu>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero General Public License as
-    published by the Free Software Foundation, either version 3 of the
-    License, or (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
--->
-<html>
-    <head>
-        <title>OpenWebRX | Open Source SDR Web App for Everyone!</title>
-        <script type="text/javascript">
-            //Global variables
-            var client_id="%[CLIENT_ID]";
-            var ws_url="%[WS_URL]";
-            var rx_photo_height=%[RX_PHOTO_HEIGHT];
-            var audio_buffering_fill_to=%[AUDIO_BUFSIZE];
-			var starting_mod="%[START_MOD]";
-            var starting_offset_frequency = %[START_OFFSET_FREQ];
-            var waterfall_colors=%[WATERFALL_COLORS];
-            var waterfall_min_level_default=%[WATERFALL_MIN_LEVEL];
-            var waterfall_max_level_default=%[WATERFALL_MAX_LEVEL];
-            var waterfall_auto_level_margin=%[WATERFALL_AUTO_LEVEL_MARGIN];
-            var server_enable_digimodes=%[DIGIMODES_ENABLE];
-			var mathbox_waterfall_frequency_resolution=%[MATHBOX_WATERFALL_FRES];
-			var mathbox_waterfall_history_length=%[MATHBOX_WATERFALL_THIST];
-			var mathbox_waterfall_colors=%[MATHBOX_WATERFALL_COLORS];
-        </script>
-        <script src="sdr.js"></script>
-		<script src="mathbox-bundle.min.js"></script>
-        <script src="openwebrx.js"></script>
-        <script src="jquery-3.2.1.min.js"></script>
-        <script src="jquery.nanoscroller.js"></script>
-        <link rel="stylesheet" type="text/css" href="nanoscroller.css" />
-        <link rel="stylesheet" type="text/css" href="openwebrx.css" />
-        <meta charset="utf-8">
-    </head>
-    <body onload="openwebrx_init();">
-<div id="webrx-page-container">
-    <div id="webrx-top-container">
-        <div id="webrx-top-photo-clip">
-            <img src="gfx/openwebrx-top-photo.jpg" id="webrx-top-photo"/>
-            <div id="webrx-rx-photo-title">%[RX_PHOTO_TITLE]</div>
-            <div id="webrx-rx-photo-desc">%[RX_PHOTO_DESC]</div>
-        </div>
-        <div id="webrx-top-bar-background" class="webrx-top-bar-parts"></div>
-        <div id="webrx-top-bar" class="webrx-top-bar-parts">
-            <a href="https://sdr.hu/openwebrx" target="_blank"><img src="gfx/openwebrx-top-logo.png" id="webrx-top-logo" /></a>
-            <a href="http://ha5kfu.sch.bme.hu/" target="_blank"><img src="gfx/openwebrx-ha5kfu-top-logo.png" id="webrx-ha5kfu-top-logo" /></a>
-            <img id="webrx-rx-avatar-background" src="gfx/openwebrx-avatar-background.png" onclick="toggle_rx_photo();"/>
-            <img id="webrx-rx-avatar" src="gfx/openwebrx-avatar.png" onclick="toggle_rx_photo();"/>
-            <div id="webrx-rx-title" onclick="toggle_rx_photo();">%[RX_TITLE]</div>
-            <div id="webrx-rx-desc" onclick="toggle_rx_photo();">%[RX_LOC] | Loc: %[RX_QRA], ASL: %[RX_ASL] m, <a href="https://www.google.hu/maps/place/%[RX_GPS]" target="_blank" onclick="dont_toggle_rx_photo();">[maps]</a></div>
-            <div id="openwebrx-rx-details-arrow">
-                <a id="openwebrx-rx-details-arrow-up" onclick="toggle_rx_photo();"><img src="gfx/openwebrx-rx-details-arrow-up.png" /></a>
-                <a id="openwebrx-rx-details-arrow-down" onclick="toggle_rx_photo();"><img src="gfx/openwebrx-rx-details-arrow.png" /></a>
-            </div>
-            <section id="openwebrx-main-buttons">
-                <ul>
-                    <li onmouseup="toggle_panel('openwebrx-panel-status');"><img src="gfx/openwebrx-panel-status.png" /><br/>Status</li>
-                    <li onmouseup="toggle_panel('openwebrx-panel-log');"><img  src="gfx/openwebrx-panel-log.png" /><br/>Log</li>
-                    <li onmouseup="toggle_panel('openwebrx-panel-receiver');"><img src="gfx/openwebrx-panel-receiver.png" /><br/>Receiver</li>
-                </ul>
-            </section>
-        </div>
-    </div>
-    <div id="webrx-main-container">
-            <div id="openwebrx-scale-container">
-                <canvas id="openwebrx-scale-canvas" width="0" height="0"></canvas>
-            </div>
-			<div id="openwebrx-mathbox-container"> </div>
-            <div id="webrx-canvas-container">
-                <div id="openwebrx-phantom-canvas"></div>
-                <!-- add canvas here by javascript -->
-            </div>
-            <div id="openwebrx-panels-container">
-                <div class="openwebrx-panel" id="openwebrx-panel-receiver" data-panel-name="client-params" data-panel-pos="right" data-panel-order="0" data-panel-size="259,115">
-                    <div id="webrx-actual-freq">---.--- MHz</div>
-                    <div id="webrx-mouse-freq">---.--- MHz</div>
-                    <div class="openwebrx-panel-line">
-                        <div class="openwebrx-button openwebrx-demodulator-button" id="openwebrx-button-nfm" 
-                            onclick="demodulator_analog_replace('nfm');">FM</div>
-                        <div class="openwebrx-button openwebrx-demodulator-button" id="openwebrx-button-am" 
-                            onclick="demodulator_analog_replace('am');">AM</div>
-                        <div class="openwebrx-button openwebrx-demodulator-button" id="openwebrx-button-lsb" 
-                            onclick="demodulator_analog_replace('lsb');">LSB</div>
-                        <div class="openwebrx-button openwebrx-demodulator-button" id="openwebrx-button-usb" 
-                            onclick="demodulator_analog_replace('usb');">USB</div>
-                        <div class="openwebrx-button openwebrx-demodulator-button" id="openwebrx-button-cw"
-                            onclick="demodulator_analog_replace('cw');">CW</div>
-                    </div>
-                    <div class="openwebrx-panel-line">
-                        <div class="openwebrx-button openwebrx-demodulator-button" id="openwebrx-button-dig" onclick="demodulator_digital_replace_last();">DIG</div>
-                        <select id="openwebrx-secondary-demod-listbox" onchange="secondary_demod_listbox_changed();">
-                            <option value="none"></option>
-                            <option value="bpsk31">BPSK31</option>
-                        </select>
-                    </div>
-                    <div class="openwebrx-panel-line">
-                        <div title="Mute on/off" id="openwebrx-mute-off" class="openwebrx-button" onclick="toggleMute();"><img src="gfx/openwebrx-speaker.png" class="openwebrx-sliderbtn-img" id="openwebrx-mute-img"></div>
-                        <input title="Volume" id="openwebrx-panel-volume" class="openwebrx-panel-slider" type="range" min="0" max="150" value="50" step="1" onchange="updateVolume()" oninput="updateVolume()">
-                        <div title="Auto-adjust waterfall colors" id="openwebrx-waterfall-colors-auto" class="openwebrx-button" onclick="waterfall_measure_minmax_now=true;"><img src="gfx/openwebrx-waterfall-auto.png" class="openwebrx-sliderbtn-img"></div>
-                        <input title="Waterfall minimum level" id="openwebrx-waterfall-color-min" class="openwebrx-panel-slider" type="range" min="-200" max="100" value="50" step="1" onchange="updateWaterfallColors(0);" oninput="updateVolume()">
-                    </div>
-                    <div class="openwebrx-panel-line">
-                        <div title="Auto-set squelch level" id="openwebrx-squelch-default" class="openwebrx-button" onclick="setSquelchToAuto()"><img src="gfx/openwebrx-squelch-button.png" class="openwebrx-sliderbtn-img"></div>
-                        <input title="Squelch" id="openwebrx-panel-squelch" class="openwebrx-panel-slider" type="range" min="-150" max="0" value="-150" step="1" onchange="updateSquelch()" oninput="updateSquelch()">
-                        <div title="Set waterfall colors to default" id="openwebrx-waterfall-colors-default" class="openwebrx-button" onclick="waterfallColorsDefault()"><img src="gfx/openwebrx-waterfall-default.png" class="openwebrx-sliderbtn-img"></div>
-                        <input title="Waterfall maximum level" id="openwebrx-waterfall-color-max" class="openwebrx-panel-slider" type="range" min="-200" max="100" value="50" step="1" onchange="updateWaterfallColors(1);" oninput="updateVolume()">
-                    </div>
-                    <div class="openwebrx-panel-line">
-                        <div class="openwebrx-button openwebrx-square-button" onclick="zoomInOneStep();"  title="Zoom in one step">  <img src="gfx/openwebrx-zoom-in.png" /></div>
-                        <div class="openwebrx-button openwebrx-square-button" onclick="zoomOutOneStep();" title="Zoom out one step"> <img src="gfx/openwebrx-zoom-out.png" /></div>
-                        <div class="openwebrx-button openwebrx-square-button" onclick="zoomInTotal();"  title="Zoom in totally"><img src="gfx/openwebrx-zoom-in-total.png" /></div>
-                        <div class="openwebrx-button openwebrx-square-button" onclick="zoomOutTotal();" title="Zoom out totally"><img src="gfx/openwebrx-zoom-out-total.png" /></div>
-						<div class="openwebrx-button openwebrx-square-button" onclick="mathbox_toggle();" title="Toggle 3D view"><img src="gfx/openwebrx-3d-spectrum.png" /></div>
-                        <div id="openwebrx-smeter-db">0 dB</div>
-                    </div>
-                    <div class="openwebrx-panel-line">
-                        <div id="openwebrx-smeter-outer">
-                            <div id="openwebrx-smeter-bar"></div>
-                        </div>
-                    </div>
-                </div>
-                <div class="openwebrx-panel" id="openwebrx-panel-log" data-panel-name="debug" data-panel-pos="left" data-panel-order="1" data-panel-size="619,137">
-                    <div class="openwebrx-panel-inner nano" id="openwebrx-log-scroll">
-                        <div class="nano-content">
-                            <div id="openwebrx-client-log-title">OpenWebRX client log</strong><span id="openwebrx-problems"></span></div>
-                            <span id="openwebrx-client-1">Author: </span><a href="http://blog.sdr.hu/about" target="_blank">András Retzler, HA7ILM</a><br />You can <a href="http://blog.sdr.hu/support" target="_blank">donate</a> to say thanks for former development (this is the final version).<br/>
-                            <div id="openwebrx-debugdiv"></div>
-                        </div>
-                    </div>
-                </div>
-                <div class="openwebrx-panel" id="openwebrx-panel-status" data-panel-name="status" data-panel-pos="left" data-panel-order="0" data-panel-size="615,50" data-panel-transparent="true">
-                    <div class="openwebrx-progressbar" id="openwebrx-bar-audio-buffer"> <span class="openwebrx-progressbar-text">Audio buffer [0 ms]</span><div class="openwebrx-progressbar-bar"></div></div>
-                    <div class="openwebrx-progressbar" id="openwebrx-bar-audio-output"> <span class="openwebrx-progressbar-text">Audio output [0 sps]</span><div class="openwebrx-progressbar-bar"></div></div>
-                    <div class="openwebrx-progressbar" id="openwebrx-bar-audio-speed"> <span class="openwebrx-progressbar-text">Audio stream [0 kbps]</span><div class="openwebrx-progressbar-bar"></div></div>
-                    <div class="openwebrx-progressbar" id="openwebrx-bar-network-speed"> <span class="openwebrx-progressbar-text">Network usage [0 kbps]</span><div class="openwebrx-progressbar-bar"></div></div>
-                    <div class="openwebrx-progressbar" id="openwebrx-bar-server-cpu"> <span class="openwebrx-progressbar-text">Server CPU [0%]</span><div class="openwebrx-progressbar-bar"></div></div>
-                    <div class="openwebrx-progressbar" id="openwebrx-bar-clients"> <span class="openwebrx-progressbar-text">Clients [1]</span><div class="openwebrx-progressbar-bar"></div></div>
-                </div>
-                <div class="openwebrx-panel" data-panel-name="client-under-devel" data-panel-pos="none" data-panel-order="0" data-panel-size="245,55" style="background-color: Red;">
-                    <span style="font-size: 15pt; font-weight: bold;">Under construction</span>
-                    <br />We're working on the code right now, so the application might fail.
-                </div>
-                <div class="openwebrx-panel" id="openwebrx-panel-digimodes" data-panel-name="digimodes" data-panel-pos="left" data-panel-order="2" data-panel-size="619,210">
-                    <div id="openwebrx-digimode-canvas-container">
-                        <div id="openwebrx-digimode-select-channel"></div>
-                    </div>
-                    <div id="openwebrx-digimode-content-container">
-                        <div class="gradient"></div>
-                        <div id="openwebrx-digimode-content">
-                        <span id="openwebrx-cursor-blink"></span>
-                        </div>
-                    </div>
-                </div>
-            </div>
-    </div>
-</div>
-    <div id="openwebrx-big-grey" onclick="iosPlayButtonClick();">
-        <div id="openwebrx-play-button-text">
-        <img id="openwebrx-play-button" src="gfx/openwebrx-play-button.png" />
-        <br /><br />Start OpenWebRX
-        </div>
-    </div>
-    </body>
-</html>

htdocs/lib/AprsMarker.js

@@ -0,0 +1,91 @@
+function AprsMarker() {}
+
+AprsMarker.prototype = new google.maps.OverlayView();
+
+AprsMarker.prototype.draw = function() {
+	var div = this.div;
+	var overlay = this.overlay;
+	if (!div || !overlay) return;
+
+    if (this.symbol) {
+        var tableId = this.symbol.table === '/' ? 0 : 1;
+        div.style.background = 'url(aprs-symbols/aprs-symbols-24-' + tableId + '@2x.png)';
+        div.style['background-size'] = '384px 144px';
+        div.style['background-position-x'] = -(this.symbol.index % 16) * 24 + 'px';
+        div.style['background-position-y'] = -Math.floor(this.symbol.index / 16) * 24 + 'px';
+    }
+
+    if (this.course) {
+        if (this.course > 180) {
+            div.style.transform = 'scalex(-1) rotate(' + (270 - this.course) + 'deg)'
+        } else {
+            div.style.transform = 'rotate(' + (this.course - 90) + 'deg)';
+        }
+    } else {
+        div.style.transform = null;
+    }
+
+    if (this.symbol.table !== '/' && this.symbol.table !== '\\') {
+        overlay.style.display = 'block';
+        overlay.style['background-position-x'] = -(this.symbol.tableindex % 16) * 24 + 'px';
+        overlay.style['background-position-y'] = -Math.floor(this.symbol.tableindex / 16) * 24 + 'px';
+    } else {
+        overlay.style.display = 'none';
+    }
+
+    if (this.opacity) {
+        div.style.opacity = this.opacity;
+    } else {
+        div.style.opacity = null;
+    }
+
+	var point = this.getProjection().fromLatLngToDivPixel(this.position);
+
+	if (point) {
+		div.style.left = point.x - 12 + 'px';
+		div.style.top = point.y - 12 + 'px';
+	}
+};
+
+AprsMarker.prototype.setOptions = function(options) {
+    google.maps.OverlayView.prototype.setOptions.apply(this, arguments);
+    this.draw();
+};
+
+AprsMarker.prototype.onAdd = function() {
+    var div = this.div = document.createElement('div');
+
+    div.style.position = 'absolute';
+    div.style.cursor = 'pointer';
+    div.style.width = '24px';
+    div.style.height = '24px';
+
+    var overlay = this.overlay = document.createElement('div');
+    overlay.style.width = '24px';
+    overlay.style.height = '24px';
+    overlay.style.background = 'url(aprs-symbols/aprs-symbols-24-2@2x.png)';
+    overlay.style['background-size'] = '384px 144px';
+    overlay.style.display = 'none';
+
+    div.appendChild(overlay);
+
+	var self = this;
+    google.maps.event.addDomListener(div, "click", function(event) {
+        event.stopPropagation();
+        google.maps.event.trigger(self, "click", event);
+    });
+
+    var panes = this.getPanes();
+    panes.overlayImage.appendChild(div);
+};
+
+AprsMarker.prototype.remove = function() {
+	if (this.div) {
+		this.div.parentNode.removeChild(this.div);
+		this.div = null;
+	}
+};
+
+AprsMarker.prototype.getAnchorPoint = function() {
+    return new google.maps.Point(0, -12);
+};

htdocs/lib/AudioEngine.js

@@ -0,0 +1,356 @@
+// this controls if the new AudioWorklet API should be used if available.
+// the engine will still fall back to the ScriptProcessorNode if this is set to true but not available in the browser.
+var useAudioWorklets = true;
+
+function AudioEngine(maxBufferLength, audioReporter) {
+    this.audioReporter = audioReporter;
+    this.initStats();
+    this.resetStats();
+    var ctx = window.AudioContext || window.webkitAudioContext;
+    if (!ctx) {
+        return;
+    }
+    this.audioContext = new ctx();
+    this.allowed = this.audioContext.state === 'running';
+    this.started = false;
+
+    this.audioCodec = new ImaAdpcmCodec();
+    this.compression = 'none';
+
+    this.setupResampling();
+    this.resampler = new Interpolator(this.resamplingFactor);
+
+    this.maxBufferSize = maxBufferLength * this.getSampleRate();
+}
+
+AudioEngine.prototype.start = function(callback) {
+    var me = this;
+    if (me.resamplingFactor === 0) return; //if failed to find a valid resampling factor...
+    if (me.started) {
+        if (callback) callback(false);
+        return;
+    }
+
+    me.audioContext.resume().then(function(){
+        me.allowed = me.audioContext.state === 'running';
+        if (!me.allowed) {
+            if (callback) callback(false);
+            return;
+        }
+        me.started = true;
+
+        me.gainNode = me.audioContext.createGain();
+        me.gainNode.connect(me.audioContext.destination);
+
+        if (useAudioWorklets && me.audioContext.audioWorklet) {
+            me.audioContext.audioWorklet.addModule('static/lib/AudioProcessor.js').then(function(){
+                me.audioNode = new AudioWorkletNode(me.audioContext, 'openwebrx-audio-processor', {
+                    numberOfInputs: 0,
+                    numberOfOutputs: 1,
+                    outputChannelCount: [1],
+                    processorOptions: {
+                        maxBufferSize: me.maxBufferSize
+                    }
+                });
+                me.audioNode.connect(me.gainNode);
+                me.audioNode.port.addEventListener('message', function(m){
+                    var json = JSON.parse(m.data);
+                    if (typeof(json.buffersize) !== 'undefined') {
+                        me.audioReporter({
+                            buffersize: json.buffersize
+                        });
+                    }
+                    if (typeof(json.samplesProcessed) !== 'undefined') {
+                        me.audioSamples.add(json.samplesProcessed);
+                    }
+                });
+                me.audioNode.port.start();
+                if (callback) callback(true, 'AudioWorklet');
+            });
+        } else {
+            me.audioBuffers = [];
+
+            if (!AudioBuffer.prototype.copyToChannel) { //Chrome 36 does not have it, Firefox does
+                AudioBuffer.prototype.copyToChannel = function (input, channel) //input is Float32Array
+                {
+                    var cd = this.getChannelData(channel);
+                    for (var i = 0; i < input.length; i++) cd[i] = input[i];
+                }
+            }
+
+            var bufferSize;
+            if (me.audioContext.sampleRate < 44100 * 2)
+                bufferSize = 4096;
+            else if (me.audioContext.sampleRate >= 44100 * 2 && me.audioContext.sampleRate < 44100 * 4)
+                bufferSize = 4096 * 2;
+            else if (me.audioContext.sampleRate > 44100 * 4)
+                bufferSize = 4096 * 4;
+
+
+            function audio_onprocess(e) {
+                var total = 0;
+                var out = new Float32Array(bufferSize);
+                while (me.audioBuffers.length) {
+                    var b = me.audioBuffers.shift();
+                    // not enough space to fit all data, so splice and put back in the queue
+                    if (total + b.length > bufferSize) {
+                        var spaceLeft  = bufferSize - total;
+                        var tokeep = b.subarray(0, spaceLeft);
+                        out.set(tokeep, total);
+                        var tobuffer = b.subarray(spaceLeft, b.length);
+                        me.audioBuffers.unshift(tobuffer);
+                        total += spaceLeft;
+                        break;
+                    } else {
+                        out.set(b, total);
+                        total += b.length;
+                    }
+                }
+
+                e.outputBuffer.copyToChannel(out, 0);
+                me.audioSamples.add(total);
+
+            }
+
+            //on Chrome v36, createJavaScriptNode has been replaced by createScriptProcessor
+            var method = 'createScriptProcessor';
+            if (me.audioContext.createJavaScriptNode) {
+                method = 'createJavaScriptNode';
+            }
+            me.audioNode = me.audioContext[method](bufferSize, 0, 1);
+            me.audioNode.onaudioprocess = audio_onprocess;
+            me.audioNode.connect(me.gainNode);
+            if (callback) callback(true, 'ScriptProcessorNode');
+        }
+
+        setInterval(me.reportStats.bind(me), 1000);
+    });
+};
+
+AudioEngine.prototype.isAllowed = function() {
+    return this.allowed;
+};
+
+AudioEngine.prototype.reportStats = function() {
+    if (this.audioNode.port) {
+        this.audioNode.port.postMessage(JSON.stringify({cmd:'getStats'}));
+    } else {
+        this.audioReporter({
+            buffersize: this.getBuffersize()
+        });
+    }
+};
+
+AudioEngine.prototype.initStats = function() {
+    var me = this;
+    var buildReporter = function(key) {
+        return function(v){
+            var report = {};
+            report[key] = v;
+            me.audioReporter(report);
+        }
+
+    };
+
+    this.audioBytes = new Measurement();
+    this.audioBytes.report(10000, 1000, buildReporter('audioByteRate'));
+
+    this.audioSamples = new Measurement();
+    this.audioSamples.report(10000, 1000, buildReporter('audioRate'));
+};
+
+AudioEngine.prototype.resetStats = function() {
+    this.audioBytes.reset();
+    this.audioSamples.reset();
+};
+
+AudioEngine.prototype.setupResampling = function() { //both at the server and the client
+    var output_range_max = 12000;
+    var output_range_min = 8000;
+    var targetRate = this.audioContext.sampleRate;
+    var i = 1;
+    while (true) {
+        var audio_server_output_rate = Math.floor(targetRate / i);
+        if (audio_server_output_rate < output_range_min) {
+            this.resamplingFactor = 0;
+            this.outputRate = 0;
+            divlog('Your audio card sampling rate (' + targetRate + ') is not supported.<br />Please change your operating system default settings in order to fix this.', 1);
+            break;
+        } else if (audio_server_output_rate >= output_range_min && audio_server_output_rate <= output_range_max) {
+            this.resamplingFactor = i;
+            this.outputRate = audio_server_output_rate;
+            break; //okay, we're done
+        }
+        i++;
+    }
+};
+
+AudioEngine.prototype.getOutputRate = function() {
+    return this.outputRate;
+};
+
+AudioEngine.prototype.getSampleRate = function() {
+    return this.audioContext.sampleRate;
+};
+
+AudioEngine.prototype.pushAudio = function(data) {
+    if (!this.audioNode) return;
+    this.audioBytes.add(data.byteLength);
+    var buffer;
+    if (this.compression === "adpcm") {
+        //resampling & ADPCM
+        buffer = this.audioCodec.decode(new Uint8Array(data));
+    } else {
+        buffer = new Int16Array(data);
+    }
+    buffer = this.resampler.process(buffer);
+    if (this.audioNode.port) {
+        // AudioWorklets supported
+        this.audioNode.port.postMessage(buffer);
+    } else {
+        // silently drop excess samples
+        if (this.getBuffersize() + buffer.length <= this.maxBufferSize) {
+            this.audioBuffers.push(buffer);
+        }
+    }
+};
+
+AudioEngine.prototype.setCompression = function(compression) {
+    this.compression = compression;
+};
+
+AudioEngine.prototype.setVolume = function(volume) {
+    this.gainNode.gain.value = volume;
+};
+
+AudioEngine.prototype.getBuffersize = function() {
+    // only available when using ScriptProcessorNode
+    if (!this.audioBuffers) return 0;
+    return this.audioBuffers.map(function(b){ return b.length; }).reduce(function(a, b){ return a + b; }, 0);
+};
+
+function ImaAdpcmCodec() {
+    this.reset();
+}
+
+ImaAdpcmCodec.prototype.reset = function() {
+    this.stepIndex = 0;
+    this.predictor = 0;
+    this.step = 0;
+};
+
+ImaAdpcmCodec.imaIndexTable = [ -1, -1, -1, -1, 2, 4, 6, 8, -1, -1, -1, -1, 2, 4, 6, 8 ];
+
+ImaAdpcmCodec.imaStepTable = [
+                               7, 8, 9, 10, 11, 12, 13, 14, 16, 17,
+                               19, 21, 23, 25, 28, 31, 34, 37, 41, 45,
+                               50, 55, 60, 66, 73, 80, 88, 97, 107, 118,
+                               130, 143, 157, 173, 190, 209, 230, 253, 279, 307,
+                               337, 371, 408, 449, 494, 544, 598, 658, 724, 796,
+                               876, 963, 1060, 1166, 1282, 1411, 1552, 1707, 1878, 2066,
+                               2272, 2499, 2749, 3024, 3327, 3660, 4026, 4428, 4871, 5358,
+                               5894, 6484, 7132, 7845, 8630, 9493, 10442, 11487, 12635, 13899,
+                               15289, 16818, 18500, 20350, 22385, 24623, 27086, 29794, 32767
+                             ];
+
+ImaAdpcmCodec.prototype.decode = function(data) {
+    var output = new Int16Array(data.length * 2);
+    for (var i = 0; i < data.length; i++) {
+        output[i * 2] = this.decodeNibble(data[i] & 0x0F);
+        output[i * 2 + 1] = this.decodeNibble((data[i] >> 4) & 0x0F);
+    }
+    return output;
+};
+
+ImaAdpcmCodec.prototype.decodeNibble = function(nibble) {
+    this.stepIndex += ImaAdpcmCodec.imaIndexTable[nibble];
+    this.stepIndex = Math.min(Math.max(this.stepIndex, 0), 88);
+
+    var diff = this.step >> 3;
+    if (nibble & 1) diff += this.step >> 2;
+    if (nibble & 2) diff += this.step >> 1;
+    if (nibble & 4) diff += this.step;
+    if (nibble & 8) diff = -diff;
+
+    this.predictor += diff;
+    this.predictor = Math.min(Math.max(this.predictor, -32768), 32767);
+
+    this.step = ImaAdpcmCodec.imaStepTable[this.stepIndex];
+
+    return this.predictor;
+};
+
+function Interpolator(factor) {
+    this.factor = factor;
+    this.lowpass = new Lowpass(factor)
+}
+
+Interpolator.prototype.process = function(data) {
+    var output = new Float32Array(data.length * this.factor);
+    for (var i = 0; i < data.length; i++) {
+        output[i * this.factor] = (data[i] + 0.5) / 32768;
+    }
+    return this.lowpass.process(output);
+};
+
+function Lowpass(interpolation) {
+    this.interpolation = interpolation;
+    var transitionBandwidth = 0.05;
+    this.numtaps = Math.round(4 / transitionBandwidth);
+    if (this.numtaps % 2 == 0) this.numtaps += 1;
+
+    var cutoff = 1 / interpolation;
+    this.coefficients = this.getCoefficients(cutoff / 2);
+
+    this.delay = new Float32Array(this.numtaps);
+    for (var i = 0; i < this.numtaps; i++){
+        this.delay[i] = 0;
+    }
+    this.delayIndex = 0;
+}
+
+Lowpass.prototype.getCoefficients = function(cutoffRate) {
+    var middle = Math.floor(this.numtaps / 2);
+    // hamming window
+    var window_function = function(r){
+        var rate = 0.5 + r / 2;
+        return 0.54 - 0.46 * Math.cos(2 * Math.PI * rate);
+    }
+    var output = [];
+    output[middle] = 2 * Math.PI * cutoffRate * window_function(0);
+    for (var i = 1; i <= middle; i++) {
+        output[middle - i] = output[middle + i] = (Math.sin(2 * Math.PI * cutoffRate * i) / i) * window_function(i / middle);
+    }
+    return this.normalizeCoefficients(output);
+};
+
+Lowpass.prototype.normalizeCoefficients = function(input) {
+    var sum = 0;
+    var output = [];
+    for (var i = 0; i < input.length; i++) {
+        sum += input[i];
+    }
+    for (var i = 0; i < input.length; i++) {
+        output[i] = input[i] / sum;
+    }
+    return output;
+};
+
+Lowpass.prototype.process = function(input) {
+    output = new Float32Array(input.length);
+    for (var oi = 0; oi < input.length; oi++) {
+        this.delay[this.delayIndex] = input[oi];
+        this.delayIndex = (this.delayIndex + 1) % this.numtaps;
+
+        var acc = 0;
+        var index = this.delayIndex;
+        for (var i = 0; i < this.numtaps; ++i) {
+            var index = index != 0 ? index - 1 : this.numtaps - 1;
+            acc += this.delay[index] * this.coefficients[i];
+            if (isNaN(acc)) debugger;
+        }
+        // gain by interpolation
+        output[oi] = this.interpolation * acc;
+    }
+    return output;
+};

htdocs/lib/AudioProcessor.js

@@ -0,0 +1,58 @@
+class OwrxAudioProcessor extends AudioWorkletProcessor {
+    constructor(options){
+        super(options);
+        // initialize ringbuffer, make sure it aligns with the expected buffer size of 128
+        this.bufferSize = Math.round(options.processorOptions.maxBufferSize / 128) * 128;
+        this.audioBuffer = new Float32Array(this.bufferSize);
+        this.inPos = 0;
+        this.outPos = 0;
+        this.samplesProcessed = 0;
+        this.port.addEventListener('message', (m) => {
+            if (typeof(m.data) === 'string') {
+                const json = JSON.parse(m.data);
+                if (json.cmd && json.cmd === 'getStats') {
+                    this.reportStats();
+                }
+            } else {
+                // the ringbuffer size is aligned to the output buffer size, which means that the input buffers might
+                // need to wrap around the end of the ringbuffer, back to the start.
+                // it is better to have this processing here instead of in the time-critical process function.
+                if (this.inPos + m.data.length <= this.bufferSize) {
+                    // we have enough space, so just copy data over.
+                    this.audioBuffer.set(m.data, this.inPos);
+                } else {
+                    // we don't have enough space, so we need to split the data.
+                    const remaining = this.bufferSize - this.inPos;
+                    this.audioBuffer.set(m.data.subarray(0, remaining), this.inPos);
+                    this.audioBuffer.set(m.data.subarray(remaining));
+                }
+                this.inPos = (this.inPos + m.data.length) % this.bufferSize;
+            }
+        });
+        this.port.addEventListener('messageerror', console.error);
+        this.port.start();
+    }
+    process(inputs, outputs) {
+        if (this.remaining() < 128) return true;
+        outputs[0].forEach((output) => {
+            output.set(this.audioBuffer.subarray(this.outPos, this.outPos + 128));
+        });
+        this.outPos = (this.outPos + 128) % this.bufferSize;
+        this.samplesProcessed += 128;
+        return true;
+    }
+    remaining() {
+        const mod = (this.inPos - this.outPos) % this.bufferSize;
+        if (mod >= 0) return mod;
+        return mod + this.bufferSize;
+    }
+    reportStats() {
+        this.port.postMessage(JSON.stringify({
+            buffersize: this.remaining(),
+            samplesProcessed: this.samplesProcessed
+        }));
+        this.samplesProcessed = 0;
+    }
+}
+
+registerProcessor('openwebrx-audio-processor', OwrxAudioProcessor);

htdocs/lib/BookmarkBar.js

@@ -0,0 +1,177 @@
+function BookmarkBar() {
+    var me = this;
+    me.localBookmarks = new BookmarkLocalStorage();
+    me.$container = $("#openwebrx-bookmarks-container");
+    me.bookmarks = {};
+
+    me.$container.on('click', '.bookmark', function(e){
+        var $bookmark = $(e.target).closest('.bookmark');
+        me.$container.find('.bookmark').removeClass('selected');
+        var b = $bookmark.data();
+        if (!b || !b.frequency || (!b.modulation && !b.digital_modulation)) return;
+        demodulators[0].set_offset_frequency(b.frequency - center_freq);
+        if (b.modulation) {
+            demodulator_analog_replace(b.modulation);
+        } else if (b.digital_modulation) {
+            demodulator_digital_replace(b.digital_modulation);
+        }
+        $bookmark.addClass('selected');
+    });
+
+    me.$container.on('click', '.action[data-action=edit]', function(e){
+        e.stopPropagation();
+        var $bookmark = $(e.target).closest('.bookmark');
+        me.showEditDialog($bookmark.data());
+    });
+
+    me.$container.on('click', '.action[data-action=delete]', function(e){
+        e.stopPropagation();
+        var $bookmark = $(e.target).closest('.bookmark');
+        me.localBookmarks.deleteBookmark($bookmark.data());
+        me.loadLocalBookmarks();
+    });
+
+    var $bookmarkButton = $('#openwebrx-panel-receiver').find('.openwebrx-bookmark-button');
+    if (typeof(Storage) !== 'undefined') {
+        $bookmarkButton.show();
+    } else {
+        $bookmarkButton.hide();
+    }
+    $bookmarkButton.click(function(){
+        me.showEditDialog();
+    });
+
+    me.$dialog = $("#openwebrx-dialog-bookmark");
+    me.$dialog.find('.openwebrx-button[data-action=cancel]').click(function(){
+        me.$dialog.hide();
+    });
+    me.$dialog.find('.openwebrx-button[data-action=submit]').click(function(){
+        me.storeBookmark();
+    });
+    me.$dialog.find('form').on('submit', function(e){
+        e.preventDefault();
+        me.storeBookmark();
+    });
+}
+
+BookmarkBar.prototype.position = function(){
+    var range = get_visible_freq_range();
+    $('#openwebrx-bookmarks-container').find('.bookmark').each(function(){
+        $(this).css('left', scale_px_from_freq($(this).data('frequency'), range));
+    });
+};
+
+BookmarkBar.prototype.loadLocalBookmarks = function(){
+    var bwh = bandwidth / 2;
+    var start = center_freq - bwh;
+    var end = center_freq + bwh;
+    var bookmarks = this.localBookmarks.getBookmarks().filter(function(b){
+        return b.frequency >= start && b.frequency <= end;
+    });
+    this.replace_bookmarks(bookmarks, 'local', true);
+};
+
+BookmarkBar.prototype.replace_bookmarks = function(bookmarks, source, editable) {
+    editable = !!editable;
+    bookmarks = bookmarks.map(function(b){
+        b.source = source;
+        b.editable = editable;
+        return b;
+    });
+    this.bookmarks[source] = bookmarks;
+    this.render();
+};
+
+BookmarkBar.prototype.render = function(){
+    var bookmarks = Object.values(this.bookmarks).reduce(function(l, v){ return l.concat(v); });
+    bookmarks = bookmarks.sort(function(a, b){ return a.frequency - b.frequency; });
+    var elements = bookmarks.map(function(b){
+        var $bookmark = $(
+            '<div class="bookmark" data-source="' + b.source + '"' + (b.editable?' editable="editable"':'') + '>' +
+                '<div class="bookmark-actions">' +
+                    '<div class="openwebrx-button action" data-action="edit"><img src="static/gfx/openwebrx-edit.png"></div>' +
+                    '<div class="openwebrx-button action" data-action="delete"><img src="static/gfx/openwebrx-trashcan.png"></div>' +
+                '</div>' +
+                '<div class="bookmark-content">' + b.name + '</div>' +
+            '</div>'
+        );
+        $bookmark.data(b);
+        return $bookmark;
+    });
+    this.$container.find('.bookmark').remove();
+    this.$container.append(elements);
+	this.position();
+};
+
+BookmarkBar.prototype.showEditDialog = function(bookmark) {
+    var $form = this.$dialog.find("form");
+    if (!bookmark) {
+        bookmark = {
+            name: "",
+            frequency: center_freq + demodulators[0].offset_frequency,
+            modulation: demodulators[0].subtype
+        }
+    }
+    ['name', 'frequency', 'modulation'].forEach(function(key){
+        $form.find('#' + key).val(bookmark[key]);
+    });
+    this.$dialog.data('id', bookmark.id);
+    this.$dialog.show();
+    this.$dialog.find('#name').focus();
+};
+
+BookmarkBar.prototype.storeBookmark = function() {
+    var me = this;
+    var bookmark = {};
+    var valid = true;
+    ['name', 'frequency', 'modulation'].forEach(function(key){
+        var $input = me.$dialog.find('#' + key);
+        valid = valid && $input[0].checkValidity();
+        bookmark[key] = $input.val();
+    });
+    if (!valid) {
+        me.$dialog.find("form :submit").click();
+        return;
+    }
+    bookmark.frequency = Number(bookmark.frequency);
+
+    var bookmarks = me.localBookmarks.getBookmarks();
+
+    bookmark.id = me.$dialog.data('id');
+    if (!bookmark.id) {
+        if (bookmarks.length) {
+            bookmark.id = 1 + Math.max.apply(Math, bookmarks.map(function(b){ return b.id || 0; }));
+        } else {
+            bookmark.id = 1;
+        }
+    }
+
+    bookmarks = bookmarks.filter(function(b) { return b.id !== bookmark.id; });
+    bookmarks.push(bookmark);
+
+    me.localBookmarks.setBookmarks(bookmarks);
+    me.loadLocalBookmarks();
+    me.$dialog.hide();
+};
+
+BookmarkLocalStorage = function(){
+};
+
+BookmarkLocalStorage.prototype.getBookmarks = function(){
+    return JSON.parse(window.localStorage.getItem("bookmarks")) || [];
+};
+
+BookmarkLocalStorage.prototype.setBookmarks = function(bookmarks){
+    window.localStorage.setItem("bookmarks", JSON.stringify(bookmarks));
+};
+
+BookmarkLocalStorage.prototype.deleteBookmark = function(data) {
+    if (data.id) data = data.id;
+    var bookmarks = this.getBookmarks();
+    bookmarks = bookmarks.filter(function(b) { return b.id !== data; });
+    this.setBookmarks(bookmarks);
+};
+
+
+
+

htdocs/lib/FrequencyDisplay.js

@@ -0,0 +1,101 @@
+function FrequencyDisplay(element) {
+    this.element = $(element);
+    this.digits = [];
+    this.setupElements();
+    this.setFrequency(0);
+}
+
+FrequencyDisplay.prototype.setupElements = function() {
+    this.displayContainer = $('<div>');
+    this.digitContainer = $('<span>');
+    this.displayContainer.html([this.digitContainer, $('<span> MHz</span>')]);
+    this.element.html(this.displayContainer);
+};
+
+FrequencyDisplay.prototype.setFrequency = function(freq) {
+    this.frequency = freq;
+    var formatted = (freq / 1e6).toLocaleString(undefined, {maximumFractionDigits: 4, minimumFractionDigits: 4});
+    var children = this.digitContainer.children();
+    for (var i = 0; i < formatted.length; i++) {
+        if (!this.digits[i]) {
+            this.digits[i] = $('<span>');
+            var before = children[i];
+            if (before) {
+                $(before).after(this.digits[i]);
+            } else {
+                this.digitContainer.append(this.digits[i]);
+            }
+        }
+        this.digits[i][(isNaN(formatted[i]) ? 'remove' : 'add') + 'Class']('digit');
+        this.digits[i].html(formatted[i]);
+    }
+    while (this.digits.length > formatted.length) {
+        this.digits.pop().remove();
+    }
+};
+
+function TuneableFrequencyDisplay(element) {
+    FrequencyDisplay.call(this, element);
+    this.setupEvents();
+}
+
+TuneableFrequencyDisplay.prototype = new FrequencyDisplay();
+
+TuneableFrequencyDisplay.prototype.setupElements = function() {
+    FrequencyDisplay.prototype.setupElements.call(this);
+    this.input = $('<input>');
+    this.input.hide();
+    this.element.append(this.input);
+};
+
+TuneableFrequencyDisplay.prototype.setupEvents = function() {
+    var me = this;
+    me.listeners = [];
+
+    me.element.on('wheel', function(e){
+        e.preventDefault();
+        e.stopPropagation();
+
+        var index = me.digitContainer.find('.digit').index(e.target);
+        if (index < 0) return;
+
+        var delta = 10 ** (Math.floor(Math.log10(me.frequency)) - index);
+        if (e.originalEvent.deltaY > 0) delta *= -1;
+        var newFrequency = me.frequency + delta;
+
+        me.listeners.forEach(function(l) {
+            l(newFrequency);
+        });
+    });
+
+    var submit = function(){
+        var freq = parseInt(me.input.val());
+        if (!isNaN(freq)) {
+            me.listeners.forEach(function(l) {
+                l(freq);
+            });
+        }
+        me.input.hide();
+        me.displayContainer.show();
+    };
+    me.input.on('blur', submit).on('keyup', function(e){
+        if (e.keyCode == 13) return submit();
+        if (e.keyCode == 27) {
+            me.input.hide();
+            me.displayContainer.show();
+        }
+    });
+    me.input.on('click', function(e){
+        e.stopPropagation();
+    });
+    me.element.on('click', function(){
+        me.input.val(me.frequency);
+        me.input.show();
+        me.displayContainer.hide();
+        me.input.focus();
+    });
+};
+
+TuneableFrequencyDisplay.prototype.onFrequencyChange = function(listener){
+    this.listeners.push(listener);
+};

htdocs/lib/Measurement.js

@@ -0,0 +1,62 @@
+function Measurement() {
+    this.reset();
+}
+
+Measurement.prototype.add = function(v) {
+    this.value += v;
+};
+
+Measurement.prototype.getValue = function() {
+    return this.value;
+};
+
+Measurement.prototype.getElapsed = function() {
+    return new Date() - this.start;
+};
+
+Measurement.prototype.getRate = function() {
+    return this.getValue() / this.getElapsed();
+};
+
+Measurement.prototype.reset = function() {
+    this.value = 0;
+    this.start = new Date();
+};
+
+Measurement.prototype.report = function(range, interval, callback) {
+    return new Reporter(this, range, interval, callback);
+};
+
+function Reporter(measurement, range, interval, callback) {
+    this.measurement = measurement;
+    this.range = range;
+    this.samples = [];
+    this.callback = callback;
+    this.interval = setInterval(this.report.bind(this), interval);
+}
+
+Reporter.prototype.sample = function(){
+    this.samples.push({
+        timestamp: new Date(),
+        value: this.measurement.getValue()
+    });
+};
+
+Reporter.prototype.report = function(){
+    this.sample();
+    var now = new Date();
+    var minDate = now.getTime() - this.range;
+    this.samples = this.samples.filter(function(s) {
+        return s.timestamp.getTime() > minDate;
+    });
+    this.samples.sort(function(a, b) {
+        return a.timestamp - b.timestamp;
+    });
+    var oldest = this.samples[0];
+    var newest = this.samples[this.samples.length -1];
+    var elapsed = newest.timestamp - oldest.timestamp;
+    if (elapsed <= 0) return;
+    var accumulated = newest.value - oldest.value;
+    // we want rate per second, but our time is in milliseconds... compensate by 1000
+    this.callback(accumulated * 1000 / elapsed);
+};

htdocs/lib/ProgressBar.js

@@ -0,0 +1,113 @@
+ProgressBar = function(el) {
+    this.$el = $(el);
+    this.$innerText = this.$el.find('.openwebrx-progressbar-text');
+    this.$innerBar = this.$el.find('.openwebrx-progressbar-bar');
+    this.$innerBar.css('width', '0%');
+};
+
+ProgressBar.prototype.set = function(val, text, over) {
+    this.setValue(val);
+    this.setText(text);
+    this.setOver(over);
+};
+
+ProgressBar.prototype.setValue = function(val) {
+    if (val < 0) val = 0;
+    if (val > 1) val = 1;
+    this.$innerBar.stop().animate({width: val * 100 + '%'}, 700);
+};
+
+ProgressBar.prototype.setText = function(text) {
+    this.$innerText.html(text);
+};
+
+ProgressBar.prototype.setOver = function(over) {
+    this.$innerBar.css('backgroundColor', (over) ? "#ff6262" : "#00aba6");
+};
+
+AudioBufferProgressBar = function(el, sampleRate) {
+    ProgressBar.call(this, el);
+    this.sampleRate = sampleRate;
+};
+
+AudioBufferProgressBar.prototype = new ProgressBar();
+
+AudioBufferProgressBar.prototype.setBuffersize = function(buffersize) {
+    var audio_buffer_value = buffersize / this.sampleRate;
+    var overrun = audio_buffer_value > audio_buffer_maximal_length_sec;
+    var underrun = audio_buffer_value === 0;
+    var text = "buffer";
+    if (overrun) {
+        text = "overrun";
+    }
+    if (underrun) {
+        text = "underrun";
+    }
+    this.set(audio_buffer_value, "Audio " + text + " [" + (audio_buffer_value).toFixed(1) + " s]", overrun || underrun);
+};
+
+
+NetworkSpeedProgressBar = function(el) {
+    ProgressBar.call(this, el);
+};
+
+NetworkSpeedProgressBar.prototype = new ProgressBar();
+
+NetworkSpeedProgressBar.prototype.setSpeed = function(speed) {
+    var speedInKilobits = speed * 8 / 1000;
+    this.set(speedInKilobits / 2000, "Network usage [" + speedInKilobits.toFixed(1) + " kbps]", false);
+};
+
+AudioSpeedProgressBar = function(el) {
+    ProgressBar.call(this, el);
+};
+
+AudioSpeedProgressBar.prototype = new ProgressBar();
+
+AudioSpeedProgressBar.prototype.setSpeed = function(speed) {
+    this.set(speed / 500000, "Audio stream [" + (speed / 1000).toFixed(0) + " kbps]", false);
+};
+
+AudioOutputProgressBar = function(el, sampleRate) {
+    ProgressBar.call(this, el);
+    this.maxRate = sampleRate * 1.25;
+    this.minRate = sampleRate * .25;
+};
+
+AudioOutputProgressBar.prototype = new ProgressBar();
+
+AudioOutputProgressBar.prototype.setAudioRate = function(audioRate) {
+    this.set(audioRate / this.maxRate, "Audio output [" + (audioRate / 1000).toFixed(1) + " ksps]", audioRate > this.maxRate || audioRate < this.minRate);
+};
+
+ClientsProgressBar = function(el) {
+    ProgressBar.call(this, el);
+    this.clients = 0;
+    this.maxClients = 0;
+};
+
+ClientsProgressBar.prototype = new ProgressBar();
+
+ClientsProgressBar.prototype.setClients = function(clients) {
+    this.clients = clients;
+    this.render();
+};
+
+ClientsProgressBar.prototype.setMaxClients = function(maxClients) {
+    this.maxClients = maxClients;
+    this.render();
+};
+
+ClientsProgressBar.prototype.render = function() {
+    this.set(this.clients / this.maxClients, "Clients [" + this.clients + "]", this.clients > this.maxClients * 0.85);
+};
+
+CpuProgressBar = function(el) {
+    ProgressBar.call(this, el);
+};
+
+CpuProgressBar.prototype = new ProgressBar();
+
+CpuProgressBar.prototype.setUsage = function(usage) {
+    this.set(usage, "Server CPU [" + Math.round(usage * 100) + "%]", usage > .85);
+};

htdocs/lib/nite-overlay.js

@@ -0,0 +1,143 @@
+/* Nite v1.7
+ * A tiny library to create a night overlay over the map
+ * Author: Rossen Georgiev @ https://github.com/rossengeorgiev
+ * Requires: GMaps API 3
+ */
+
+
+var nite = {
+    map: null,
+    date: null,
+    sun_position: null,
+    earth_radius_meters: 6371008,
+    marker_twilight_civil: null,
+    marker_twilight_nautical: null,
+    marker_twilight_astronomical: null,
+    marker_night: null,
+
+    init: function(map) {
+        if(typeof google === 'undefined'
+           || typeof google.maps === 'undefined') throw "Nite Overlay: no google.maps detected";
+
+        this.map = map;
+        this.sun_position = this.calculatePositionOfSun();
+
+        this.marker_twilight_civil = new google.maps.Circle({
+            map: this.map,
+            center: this.getShadowPosition(),
+            radius: this.getShadowRadiusFromAngle(0.566666),
+            fillColor: "#000",
+            fillOpacity: 0.1,
+            strokeOpacity: 0,
+            clickable: false,
+            editable: false
+        });
+        this.marker_twilight_nautical = new google.maps.Circle({
+            map: this.map,
+            center: this.getShadowPosition(),
+            radius: this.getShadowRadiusFromAngle(6),
+            fillColor: "#000",
+            fillOpacity: 0.1,
+            strokeOpacity: 0,
+            clickable: false,
+            editable: false
+        });
+        this.marker_twilight_astronomical = new google.maps.Circle({
+            map: this.map,
+            center: this.getShadowPosition(),
+            radius: this.getShadowRadiusFromAngle(12),
+            fillColor: "#000",
+            fillOpacity: 0.1,
+            strokeOpacity: 0,
+            clickable: false,
+            editable: false
+        });
+        this.marker_night = new google.maps.Circle({
+            map: this.map,
+            center: this.getShadowPosition(),
+            radius: this.getShadowRadiusFromAngle(18),
+            fillColor: "#000",
+            fillOpacity: 0.1,
+            strokeOpacity: 0,
+            clickable: false,
+            editable: false
+        });
+    },
+    getShadowRadiusFromAngle: function(angle) {
+        var shadow_radius =  this.earth_radius_meters * Math.PI * 0.5;
+        var twilight_dist = ((this.earth_radius_meters * 2 * Math.PI) / 360) * angle;
+        return shadow_radius - twilight_dist;
+    },
+    getSunPosition: function() {
+        return this.sun_position;
+    },
+    getShadowPosition: function() {
+        return (this.sun_position) ? new google.maps.LatLng(-this.sun_position.lat(), this.sun_position.lng() + 180) : null;
+    },
+    refresh: function() {
+        if(!this.isVisible()) return;
+        this.sun_position = this.calculatePositionOfSun(this.date);
+        var shadow_position = this.getShadowPosition();
+        this.marker_twilight_civil.setCenter(shadow_position);
+        this.marker_twilight_nautical.setCenter(shadow_position);
+        this.marker_twilight_astronomical.setCenter(shadow_position);
+        this.marker_night.setCenter(shadow_position);
+    },
+    jday: function(date) {
+        return (date.getTime() / 86400000.0) + 2440587.5;
+    },
+    calculatePositionOfSun: function(date) {
+        date = (date instanceof Date) ? date : new Date();
+
+        var rad = 0.017453292519943295;
+
+        // based on NOAA solar calculations
+        var ms_past_midnight = ((date.getUTCHours() * 60 + date.getUTCMinutes()) * 60 + date.getUTCSeconds()) * 1000 + date.getUTCMilliseconds();
+        var jc = (this.jday(date) - 2451545)/36525;
+        var mean_long_sun = (280.46646+jc*(36000.76983+jc*0.0003032)) % 360;
+        var mean_anom_sun = 357.52911+jc*(35999.05029-0.0001537*jc);
+        var sun_eq = Math.sin(rad*mean_anom_sun)*(1.914602-jc*(0.004817+0.000014*jc))+Math.sin(rad*2*mean_anom_sun)*(0.019993-0.000101*jc)+Math.sin(rad*3*mean_anom_sun)*0.000289;
+        var sun_true_long = mean_long_sun + sun_eq;
+        var sun_app_long = sun_true_long - 0.00569 - 0.00478*Math.sin(rad*125.04-1934.136*jc);
+        var mean_obliq_ecliptic = 23+(26+((21.448-jc*(46.815+jc*(0.00059-jc*0.001813))))/60)/60;
+        var obliq_corr = mean_obliq_ecliptic + 0.00256*Math.cos(rad*125.04-1934.136*jc);
+
+        var lat = Math.asin(Math.sin(rad*obliq_corr)*Math.sin(rad*sun_app_long)) / rad;
+
+        var eccent = 0.016708634-jc*(0.000042037+0.0000001267*jc);
+        var y = Math.tan(rad*(obliq_corr/2))*Math.tan(rad*(obliq_corr/2));
+        var rq_of_time = 4*((y*Math.sin(2*rad*mean_long_sun)-2*eccent*Math.sin(rad*mean_anom_sun)+4*eccent*y*Math.sin(rad*mean_anom_sun)*Math.cos(2*rad*mean_long_sun)-0.5*y*y*Math.sin(4*rad*mean_long_sun)-1.25*eccent*eccent*Math.sin(2*rad*mean_anom_sun))/rad);
+        var true_solar_time_in_deg = ((ms_past_midnight+rq_of_time*60000) % 86400000) / 240000;
+
+        var lng = -((true_solar_time_in_deg < 0) ? true_solar_time_in_deg + 180 : true_solar_time_in_deg - 180);
+
+        return new google.maps.LatLng(lat, lng);
+    },
+    setDate: function(date) {
+        this.date = date;
+        this.refresh();
+    },
+    setMap: function(map) {
+        this.map = map;
+        this.marker_twilight_civil.setMap(this.map);
+        this.marker_twilight_nautical.setMap(this.map);
+        this.marker_twilight_astronomical.setMap(this.map);
+        this.marker_night.setMap(this.map);
+    },
+    show: function() {
+        this.marker_twilight_civil.setVisible(true);
+        this.marker_twilight_nautical.setVisible(true);
+        this.marker_twilight_astronomical.setVisible(true);
+        this.marker_night.setVisible(true);
+        this.refresh();
+    },
+    hide: function() {
+        this.marker_twilight_civil.setVisible(false);
+        this.marker_twilight_nautical.setVisible(false);
+        this.marker_twilight_astronomical.setVisible(false);
+        this.marker_night.setVisible(false);
+    },
+    isVisible: function() {
+        return this.marker_night.getVisible();
+    }
+}

htdocs/map.html

@@ -0,0 +1,25 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+    <title>OpenWebRX Map</title>
+    <link rel="shortcut icon" type="image/x-icon" href="static/favicon.ico" />
+    <script src="static/lib/jquery-3.2.1.min.js"></script>
+    <script src="static/lib/chroma.min.js"></script>
+    <script src="static/map.js"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.min.js"></script>
+    <link rel="stylesheet" type="text/css" href="static/css/map.css" />
+    <meta charset="utf-8">
+</head>
+<body>
+    ${header}
+    <div class="openwebrx-map"></div>
+    <div class="openwebrx-map-legend">
+        <h3>Colors</h3>
+        <select id="openwebrx-map-colormode">
+            <option value="byband" selected="selected">By Band</option>
+            <option value="bymode">By Mode</option>
+        </select>
+        <div class="content"></div>
+    </div>
+</body>
+</html>

htdocs/map.js

@@ -0,0 +1,362 @@
+(function(){
+    var query = window.location.search.replace(/^\?/, '').split('&').map(function(v){
+        var s = v.split('=');
+        var r = {};
+        r[s[0]] = s.slice(1).join('=');
+        return r;
+    }).reduce(function(a, b){
+        return a.assign(b);
+    });
+
+    var expectedCallsign;
+    if (query.callsign) expectedCallsign = query.callsign;
+    var expectedLocator;
+    if (query.locator) expectedLocator = query.locator;
+
+    var protocol = window.location.protocol.match(/https/) ? 'wss' : 'ws';
+
+    var href = window.location.href;
+    var index = href.lastIndexOf('/');
+    if (index > 0) {
+        href = href.substr(0, index + 1);
+    }
+    href = href.split("://")[1];
+    href = protocol + "://" + href;
+    if (!href.endsWith('/')) {
+        href += '/';
+    }
+    var ws_url = href + "ws/";
+
+    var map;
+    var markers = {};
+    var rectangles = {};
+    var updateQueue = [];
+
+    // reasonable default; will be overriden by server
+    var retention_time = 2 * 60 * 60 * 1000;
+    var strokeOpacity = 0.8;
+    var fillOpacity = 0.35;
+
+    var colorKeys = {};
+    var colorScale = chroma.scale(['red', 'blue', 'green']).mode('hsl');
+    var getColor = function(id){
+        if (!id) return "#000000";
+        if (!colorKeys[id]) {
+            var keys = Object.keys(colorKeys);
+            keys.push(id);
+            keys.sort();
+            var colors = colorScale.colors(keys.length);
+            colorKeys = {};
+            keys.forEach(function(key, index) {
+                colorKeys[key] = colors[index];
+            });
+            reColor();
+            updateLegend();
+        }
+        return colorKeys[id];
+    }
+
+    // when the color palette changes, update all grid squares with new color
+    var reColor = function() {
+        $.each(rectangles, function(_, r) {
+            var color = getColor(colorAccessor(r));
+            r.setOptions({
+                strokeColor: color,
+                fillColor: color
+            });
+        });
+    }
+
+    var colorMode = 'byband';
+    var colorAccessor = function(r) {
+        switch (colorMode) {
+            case 'byband':
+                return r.band;
+            case 'bymode':
+                return r.mode;
+        }
+    };
+
+    $(function(){
+        $('#openwebrx-map-colormode').on('change', function(){
+            colorMode = $(this).val();
+            colorKeys = {};
+            reColor();
+            updateLegend();
+        });
+    });
+
+    var updateLegend = function() {
+        var lis = $.map(colorKeys, function(value, key) {
+            return '<li class="square"><span class="illustration" style="background-color:' + chroma(value).alpha(fillOpacity) + ';border-color:' + chroma(value).alpha(strokeOpacity) + ';"></span>' + key + '</li>';
+        });
+        $(".openwebrx-map-legend .content").html('<ul>' + lis.join('') + '</ul>');
+    }
+
+    var processUpdates = function(updates) {
+        if (typeof(AprsMarker) == 'undefined') {
+            updateQueue = updateQueue.concat(updates);
+            return;
+        }
+        updates.forEach(function(update){
+
+            switch (update.location.type) {
+                case 'latlon':
+                    var pos = new google.maps.LatLng(update.location.lat, update.location.lon);
+                    var marker;
+                    var markerClass = google.maps.Marker;
+                    var aprsOptions = {}
+                    if (update.location.symbol) {
+                        markerClass = AprsMarker;
+                        aprsOptions.symbol = update.location.symbol;
+                        aprsOptions.course = update.location.course;
+                        aprsOptions.speed = update.location.speed;
+                    }
+                    if (markers[update.callsign]) {
+                        marker = markers[update.callsign];
+                    } else {
+                        marker = new markerClass();
+                        marker.addListener('click', function(){
+                            showMarkerInfoWindow(update.callsign, pos);
+                        });
+                        markers[update.callsign] = marker;
+                    }
+                    marker.setOptions($.extend({
+                        position: pos,
+                        map: map,
+                        title: update.callsign
+                    }, aprsOptions, getMarkerOpacityOptions(update.lastseen) ));
+                    marker.lastseen = update.lastseen;
+                    marker.mode = update.mode;
+                    marker.band = update.band;
+                    marker.comment = update.location.comment;
+
+                    // TODO the trim should happen on the server side
+                    if (expectedCallsign && expectedCallsign == update.callsign.trim()) {
+                        map.panTo(pos);
+                        showMarkerInfoWindow(update.callsign, pos);
+                        delete(expectedCallsign);
+                    }
+                break;
+                case 'locator':
+                    var loc = update.location.locator;
+                    var lat = (loc.charCodeAt(1) - 65 - 9) * 10 + Number(loc[3]);
+                    var lon = (loc.charCodeAt(0) - 65 - 9) * 20 + Number(loc[2]) * 2;
+                    var center = new google.maps.LatLng({lat: lat + .5, lng: lon + 1});
+                    var rectangle;
+                    // the accessor is designed to work on the rectangle... but it should work on the update object, too
+                    var color = getColor(colorAccessor(update));
+                    if (rectangles[update.callsign]) {
+                        rectangle = rectangles[update.callsign];
+                    } else {
+                        rectangle = new google.maps.Rectangle();
+                        rectangle.addListener('click', function(){
+                            showLocatorInfoWindow(this.locator, this.center);
+                        });
+                        rectangles[update.callsign] = rectangle;
+                    }
+                    rectangle.setOptions($.extend({
+                        strokeColor: color,
+                        strokeWeight: 2,
+                        fillColor: color,
+                        map: map,
+                        bounds:{
+                            north: lat,
+                            south: lat + 1,
+                            west: lon,
+                            east: lon + 2
+                        }
+                    }, getRectangleOpacityOptions(update.lastseen) ));
+                    rectangle.lastseen = update.lastseen;
+                    rectangle.locator = update.location.locator;
+                    rectangle.mode = update.mode;
+                    rectangle.band = update.band;
+                    rectangle.center = center;
+
+                    if (expectedLocator && expectedLocator == update.location.locator) {
+                        map.panTo(center);
+                        showLocatorInfoWindow(expectedLocator, center);
+                        delete(expectedLocator);
+                    }
+                break;
+            }
+        });
+    };
+
+    var clearMap = function(){
+        var reset = function(callsign, item) { item.setMap(); };
+        $.each(markers, reset);
+        $.each(rectangles, reset);
+        markers = {};
+        rectangles = {};
+    };
+
+    var reconnect_timeout = false;
+
+    var connect = function(){
+        var ws = new WebSocket(ws_url);
+        ws.onopen = function(){
+            ws.send("SERVER DE CLIENT client=map.js type=map");
+            reconnect_timeout = false
+        };
+
+        ws.onmessage = function(e){
+            if (typeof e.data != 'string') {
+                console.error("unsupported binary data on websocket; ignoring");
+                return
+            }
+            if (e.data.substr(0, 16) == "CLIENT DE SERVER") {
+                console.log("Server acknowledged WebSocket connection.");
+                return
+            }
+            try {
+                var json = JSON.parse(e.data);
+                switch (json.type) {
+                    case "config":
+                        var config = json.value;
+                        if (!map) $.getScript("https://maps.googleapis.com/maps/api/js?key=" + config.google_maps_api_key).done(function(){
+                            map = new google.maps.Map($('.openwebrx-map')[0], {
+                                center: {
+                                    lat: config.receiver_gps[0],
+                                    lng: config.receiver_gps[1]
+                                },
+                                zoom: 5
+                            });
+                            $.getScript("static/lib/nite-overlay.js").done(function(){
+                                nite.init(map);
+                                setInterval(function() { nite.refresh() }, 10000); // every 10s
+                            });
+                            $.getScript('static/lib/AprsMarker.js').done(function(){
+                                processUpdates(updateQueue);
+                                updateQueue = [];
+                            });
+                            map.controls[google.maps.ControlPosition.LEFT_BOTTOM].push($(".openwebrx-map-legend")[0]);
+                        });
+                        retention_time = config.map_position_retention_time * 1000;
+                    break;
+                    case "update":
+                        processUpdates(json.value);
+                    break;
+                }
+            } catch (e) {
+                // don't lose exception
+                console.error(e);
+            }
+        };
+        ws.onclose = function(){
+            clearMap();
+            if (reconnect_timeout) {
+                // max value: roundabout 8 and a half minutes
+                reconnect_timeout = Math.min(reconnect_timeout * 2, 512000);
+            } else {
+                // initial value: 1s
+                reconnect_timeout = 1000;
+            }
+            setTimeout(connect, reconnect_timeout);
+        };
+
+        window.onbeforeunload = function() { //http://stackoverflow.com/questions/4812686/closing-websocket-correctly-html5-javascript
+            ws.onclose = function () {};
+            ws.close();
+        };
+
+        /*
+        ws.onerror = function(){
+            console.info("websocket error");
+        };
+        */
+    };
+
+    connect();
+
+    var infowindow;
+    var showLocatorInfoWindow = function(locator, pos) {
+        if (!infowindow) infowindow = new google.maps.InfoWindow();
+        var inLocator = $.map(rectangles, function(r, callsign) {
+            return {callsign: callsign, locator: r.locator, lastseen: r.lastseen, mode: r.mode, band: r.band}
+        }).filter(function(d) {
+            return d.locator == locator;
+        }).sort(function(a, b){
+            return b.lastseen - a.lastseen;
+        });
+        infowindow.setContent(
+            '<h3>Locator: ' + locator + '</h3>' +
+            '<div>Active Callsigns:</div>' +
+            '<ul>' +
+                inLocator.map(function(i){
+                    var timestring = moment(i.lastseen).fromNow();
+                    var message = i.callsign + ' (' + timestring + ' using ' + i.mode;
+                    if (i.band) message += ' on ' + i.band;
+                    message += ')';
+                    return '<li>' + message + '</li>'
+                }).join("") +
+            '</ul>'
+        );
+        infowindow.setPosition(pos);
+        infowindow.open(map);
+    };
+
+    var showMarkerInfoWindow = function(callsign, pos) {
+        if (!infowindow) infowindow = new google.maps.InfoWindow();
+        var marker = markers[callsign];
+        var timestring = moment(marker.lastseen).fromNow();
+        var commentString = "";
+        if (marker.comment) {
+            commentString = '<div>' + marker.comment + '</div>';
+        }
+        infowindow.setContent(
+            '<h3>' + callsign + '</h3>' +
+            '<div>' + timestring + ' using ' + marker.mode + ( marker.band ? ' on ' + marker.band : '' ) + '</div>' +
+            commentString
+        );
+        infowindow.open(map, marker);
+    }
+
+    var getScale = function(lastseen) {
+        var age = new Date().getTime() - lastseen;
+        var scale = 1;
+        if (age >= retention_time / 2) {
+            scale = (retention_time - age) / (retention_time / 2);
+        }
+        return Math.max(0, Math.min(1, scale));
+    };
+
+    var getRectangleOpacityOptions = function(lastseen) {
+        var scale = getScale(lastseen);
+        return {
+            strokeOpacity: strokeOpacity * scale,
+            fillOpacity: fillOpacity * scale
+        };
+    };
+
+    var getMarkerOpacityOptions = function(lastseen) {
+        var scale = getScale(lastseen);
+        return {
+            opacity: scale
+        };
+    };
+
+    // fade out / remove positions after time
+    setInterval(function(){
+        var now = new Date().getTime();
+        $.each(rectangles, function(callsign, m) {
+            var age = now - m.lastseen;
+            if (age > retention_time) {
+                delete rectangles[callsign];
+                m.setMap();
+                return;
+            }
+            m.setOptions(getRectangleOpacityOptions(m.lastseen));
+        });
+        $.each(markers, function(callsign, m) {
+            var age = now - m.lastseen;
+            if (age > retention_time) {
+                delete markers[callsign];
+                m.setMap();
+                return;
+            }
+            m.setOptions(getMarkerOpacityOptions(m.lastseen));
+        });
+    }, 1000);
+
+})();

htdocs/mathbox.css

@@ -1,461 +0,0 @@
-.shadergraph-graph {
-  font: 12px sans-serif;
-  line-height: 25px;
-  position: relative;
-}
-.shadergraph-graph:after {
-  content: ' ';
-  display: block;
-  height: 0;
-  font-size: 0;
-  clear: both;
-}
-.shadergraph-graph svg {
-  pointer-events: none;
-}
-.shadergraph-clear {
-  clear: both;
-}
-.shadergraph-graph svg {
-  position: absolute;
-  left: 0;
-  right: 0;
-  top: 0;
-  bottom: 0;
-  width: auto;
-  height: auto;
-}
-.shadergraph-column {
-  float: left;
-}
-.shadergraph-node .shadergraph-graph {
-  float: left;
-  clear: both;
-  overflow: visible;
-}
-.shadergraph-node .shadergraph-graph .shadergraph-node {
-  margin: 5px 15px 15px; 
-}
-.shadergraph-node {
-  margin: 5px 15px 25px; 
-  background: rgba(0, 0, 0, .1);
-  border-radius: 5px;
-  box-shadow: 0 1px  2px rgba(0, 0, 0, .2),
-              0 1px  10px rgba(0, 0, 0, .2);
-  min-height: 35px;
-  float: left;
-  clear: left;
-  position: relative;
-}
-.shadergraph-type {
-  font-weight: bold;
-}
-.shadergraph-header {
-  font-weight: bold;
-  text-align: center;
-  height: 25px;
-  background: rgba(0, 0, 0, .3);
-  text-shadow: 0 1px 2px rgba(0, 0, 0, .25);
-  color: #fff;
-  border-top-left-radius: 5px;
-  border-top-right-radius: 5px;
-  margin-bottom: 5px;
-  padding: 0 10px;
-}
-.shadergraph-outlet div {
-}
-.shadergraph-outlet-in .shadergraph-name {
-  margin-right: 7px;
-}
-.shadergraph-outlet-out .shadergraph-name {
-  margin-left: 7px;
-}
-
-.shadergraph-name {
-  margin: 0 4px;
-}
-.shadergraph-point {
-  margin: 6px;
-  width:  11px;
-  height: 11px;
-  border-radius: 7.5px;
-  background: rgba(255, 255, 255, 1);
-}
-.shadergraph-outlet-in {
-  float: left;
-  clear: left;
-}
-.shadergraph-outlet-in div {
-  float: left;
-}
-.shadergraph-outlet-out {
-  float: right;
-  clear: right;
-}
-.shadergraph-outlet-out div {
-  float: right;
-}
-
-.shadergraph-node-callback {
-  background: rgba(205, 209, 221, .5);
-  box-shadow: 0 1px  2px rgba(0, 10, 40, .2),
-              0 1px  10px rgba(0, 10, 40, .2);
-}
-.shadergraph-node-callback > .shadergraph-header {
-  background: rgba(0, 20, 80, .3);
-}
-.shadergraph-graph .shadergraph-graph .shadergraph-node-callback {
-  background: rgba(0, 20, 80, .1);
-}
-
-.shadergraph-node-call {
-  background: rgba(209, 221, 205, .5);
-  box-shadow: 0 1px  2px rgba(10, 40, 0, .2),
-              0 1px  10px rgba(10, 40, 0, .2);
-}
-.shadergraph-node-call > .shadergraph-header {
-  background: rgba(20, 80, 0, .3);
-}
-.shadergraph-graph .shadergraph-graph .shadergraph-node-call {
-  background: rgba(20, 80, 0, .1);
-}
-
-.shadergraph-node-isolate {
-  background: rgba(221, 205, 209, .5);
-  box-shadow: 0 1px  2px rgba(40, 0, 10, .2),
-              0 1px  10px rgba(40, 0, 10, .2);
-}
-.shadergraph-node-isolate > .shadergraph-header {
-  background: rgba(80, 0, 20, .3);
-}
-.shadergraph-graph .shadergraph-graph .shadergraph-node-isolate {
-  background: rgba(80, 0, 20, .1);
-}
-
-.shadergraph-node.shadergraph-has-code {
-  cursor: pointer;
-}
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-  position: absolute;
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-  display: none;
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-}
-.shadergraph-code {
-  z-index: 10000;
-  display: none;
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-  background: #fff;
-  color: #000;
-  white-space: pre;
-  padding: 10px;
-  border-radius: 5px;
-  box-shadow: 0 1px  2px rgba(0, 0, 0, .2),
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-}
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-.shadergraph-overlay {
-  position: fixed;
-  top: 50%;
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-}
-.shadergraph-overlay .shadergraph-view {
-  position: absolute;
-  left: 0;
-  top: 0;
-  right: 0;
-  bottom: 0;
-  overflow: auto;
-}
-.shadergraph-overlay .shadergraph-inside {
-  width: 4000px;
-  min-height: 100%;
-  box-sizing: border-box;
-}
-.shadergraph-overlay .shadergraph-close {
-  position: absolute;
-  top: 5px;
-  right: 5px;
-  padding: 4px;
-  border-radius: 16px;
-  background: rgba(255,255,255,.3);
-  color: rgba(0, 0, 0, .3);
-  cursor: pointer;
-  font-size: 24px;
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-  text-align: center;
-  vertical-align: middle;
-}
-.shadergraph-overlay .shadergraph-close:hover {
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-  color: rgba(0, 0, 0, 1);
-}
-.shadergraph-overlay .shadergraph-graph {
-  padding-top: 10px;
-  overflow: visible;
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-}
-.shadergraph-overlay span {
-  display: block;
-  padding: 5px 15px;
-  margin: 0;
-  background: rgba(0, 0, 0, .1);
-  font-weight: bold;
-  font-family: sans-serif;
-}
-.mathbox-loader {
-  position: absolute;
-  top: 50%;
-  left: 50%;
-  -webkit-transform: translate(-50%, -50%);
-  transform: translate(-50%, -50%);
-  padding: 10px;
-  border-radius: 50%;
-  background: #fff;
-}
-
-.mathbox-loader.mathbox-exit {
-  opacity: 0;
-  -webkit-transition:
-    opacity .15s ease-in-out;
-  transition:
-    opacity .15s ease-in-out;
-}
-
-.mathbox-progress {
-  height: 10px;
-  border-radius: 5px;
-  width: 80px;
-  margin: 0 auto 20px;
-  box-shadow:
-     1px  1px 1px rgba(255, 255, 255, .2),
-     1px -1px 1px rgba(255, 255, 255, .2),
-    -1px  1px 1px rgba(255, 255, 255, .2),
-    -1px -1px 1px rgba(255, 255, 255, .2);
-  background: #ccc;
-  overflow: hidden;
-}
-
-.mathbox-progress > div {
-  display: block;
-  width: 0px;
-  height: 10px;
-  background: #888;
-}
-
-.mathbox-logo {
-  position: relative;
-  width: 140px;
-  height: 100px;
-  margin: 0 auto 10px;
-  -webkit-perspective: 200px;
-  perspective: 200px;
-}
-
-.mathbox-logo > div {
-  position: absolute;
-  left: 0;
-  top: 0;
-  bottom: 0;
-  right: 0;
-  -webkit-transform-style: preserve-3d;
-  transform-style:         preserve-3d;
-}
-
-.mathbox-logo > :nth-child(1) {
-  -webkit-transform: rotateZ(22deg) rotateX(24deg) rotateY(30deg);
-  transform:         rotateZ(22deg) rotateX(24deg) rotateY(30deg);
-}
-
-.mathbox-logo > :nth-child(2) {
-  -webkit-transform: rotateZ(11deg) rotateX(12deg) rotateY(15deg) scale3d(.6, .6, .6);
-  transform:         rotateZ(11deg) rotateX(12deg) rotateY(15deg) scale3d(.6, .6, .6);
-}
-
-.mathbox-logo > div > div {
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-  margin-left: -100px;
-  margin-top: -100px;
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-.mathbox-logo > div > :nth-child(1) {
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-  transform:         rotateX(30deg) scale(0.5, 0.5);
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-  transform:         rotateX(90deg) scale(0.42, 0.42);
-}
-
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-}
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-  border: 27px solid #808080;
-}
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-}
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-  border: 38px solid #C0C0C0;
-}
-
-.mathbox-splash-blue .mathbox-progress {
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-}
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-  background: #1979e7;
-}
-.mathbox-splash-blue .mathbox-logo > :nth-child(1) > :nth-child(1) {
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htdocs/openwebrx.css

@@ -1,973 +0,0 @@
-/*
-
-	This file is part of OpenWebRX,
-	an open-source SDR receiver software with a web UI.
-	Copyright (c) 2013-2015 by Andras Retzler <randras@sdr.hu>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero General Public License as
-    published by the Free Software Foundation, either version 3 of the
-    License, or (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-*/
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-
-#openwebrx-panel-receiver
-{
-	width:110px;
-}
-
-#openwebrx-mute-on
-{
-	color: lime;
-}
-
-#openwebrx-mute-off
-{
-	color: white;
-}
-
-.openwebrx-panel-slider
-{
-	position: relative;
-	top: -2px;
-	width: 95px;
-}
-
-.openwebrx-sliderbtn-img
-{
-	width: 14px;
-	position:relative;
-	top: 1px;
-}
-
-.openwebrx-panel-line
-{
-	padding-top: 5px;
-}
-
-#openwebrx-smeter-outer
-{
-	border-color: #888;
-	border-style: solid;
-	border-width: 0px;
-	width: 255px;
-	height: 7px;
-	background-color: #373737;
-	border-radius: 3px;
-	position: relative;
-}
-#openwebrx-smeter-bar
-{
-	transition: all 0.2s linear;
-	width: 0px;
-	height: 7px;
-	background: linear-gradient(to top, #ff5939 , #961700);
-	position: absolute;
-	margin: 0; padding: 0; left: 0;
-	border-radius: 3px;
-}
-
-#openwebrx-smeter-db
-{
-	color: #aaa;
-	display: inline-block;
-	font-size: 10pt;
-	float: right;
-	margin-right: 5px;
-	margin-top: 24px;
-	font-family: 'expletus-sans-medium';
-}
-
-#openwebrx-big-grey
-{
-	position: fixed;
-	width: 100%;
-	height: 100%;
-	margin: 0;
-	padding: 0;
-	opacity: 0.8;
-	background-color: #777;
-	left: 0;
-	top: 0;
-	z-index: 1001;
-	display: none;
-	vertical-align: middle;
-	text-align: center;
-	color: white;
-	font-weight: bold;
-	font-size: 20pt;
-	cursor: pointer;
-	transition: opacity 0.3s linear;
-}
-
-#openwebrx-big-grey img
-{
-	width: 150px;
-}
-
-#openwebrx-digimode-canvas-container
-{
-	/*margin: -10px -10px 10px -10px;*/
-    margin: -10px -10px 0px -10px;
-	border-radius: 15px;
-	height: 150px;
-	background-color: #333;
-    position: relative;
-    overflow: hidden;
-}
-
-#openwebrx-digimode-canvas-container canvas
-{
-    position: absolute;
-    pointer-events: none;
-    transition: width 500ms, left 500ms;
-}
-
-#openwebrx-secondary-demod-listbox
-{
-	width: 201px;
-	height: 27px;
-	border-radius: 5px;
-	background-color: #373737;
-	color: White;
-	font-weight: normal;
-	font-size: 13pt;
-	margin-right: 1px;
-	background:-webkit-gradient( linear, left top, left bottom, color-stop(0.0	, #373737), color-stop(1, #4F4F4F) );
-	background:-moz-linear-gradient( center top, #373737 0%, #4F4F4F 100% );
-	border-color: transparent;
-	border-width: 0px;
-	-moz-appearance: none;
-	padding-left:3px;
-}
-
-#openwebrx-secondary-demod-listbox option
-{
-	border-width: 0px;
-	background-color: #373737;
-	color: White;
-}
-
-#openwebrx-cursor-blink
-{
-	animation: cursor-blink 1s infinite;
-	/*animation: cursor-3d 2s infinite;*/
-	animation-timing-function: linear;
-	animation-direction: alternate;
-	height: 1em;
-	width: 8px;
-	background-color: White;
-	display: inline-block;
-    position: relative;
-    top: 1px;
-	/*perspective: 60px;*/
-
-}
-
-@keyframes cursor-blink
-{
-	0%{ opacity: 0; }
-	50% { opacity: 1; }
-	100%{ opacity: 0; }
-}
-
-@keyframes cursor-3d
-{
-	0%{ transform: rotateX(0deg) rotateX(Ydeg); }
-	50% { transform: rotateX(180deg) rotateY(360deg); opacity: 0.1; }
-	100%{ transform: rotateX(360deg) rotateY(720deg); }
-}
-
-#openwebrx-digimode-content
-{
-    word-wrap: break-word;
-    position: absolute;
-    bottom: 0;
-    width: 100%;
-}
-
-#openwebrx-digimode-content-container
-{
-    overflow-y: hidden;
-    display: block;
-    height: 50px;
-    position: relative;
-}
-
-#openwebrx-digimode-content-container .gradient
-{
-    width: 100%;
-    height: 20px;
-    background: linear-gradient(to top,  rgba(87,87,87,0) 0%,rgba(87,87,87,1) 100%);
-    position: absolute;
-    top: 0;
-    z-index: 10;
-}
-
-
-#openwebrx-digimode-content .part
-{
-    perspective: 700px;
-}
-
-#openwebrx-digimode-content .part
-{
-    animation: new-digimode-data-3d 100ms;
-	animation-timing-function: linear; 
-    display: inline-block;
-    perspective-origin: 50% 50%;
-    transform-origin: 0% 50%;
-}
-
-#openwebrx-digimode-content .part .subpart
-{
-}
-
-
-@keyframes new-digimode-data
-{
-	0%{ opacity: 0; }
-	100%{ opacity: 1; }
-}
-
-@keyframes new-digimode-data-3d
-{
-	0%{ transform: rotateX(0deg) rotateY(-90deg) translateX(-5px) scale(1.3); }
-	100%{ transform: rotateX(0deg) rotateY(0deg) translateX(0) scale(1); }
-}
-
-#openwebrx-digimode-select-channel
-{
-    transition: all 500ms;
-    background-color: Yellow;
-    display: block;
-    position: absolute;
-    pointer-events: none;
-    height: 100%;
-    width: 0px;
-    top: 0px;
-    left: 0px;
-    opacity: 0.7;
-    border-style: solid;
-    border-width: 0px;
-    border-color: Red;
-}
-

htdocs/retry.html

@@ -1,94 +0,0 @@
-<html>
-<!--
-
-	This file is part of OpenWebRX, 
-	an open-source SDR receiver software with a web UI.
-	Copyright (c) 2013-2015 by Andras Retzler <randras@sdr.hu>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero General Public License as
-    published by the Free Software Foundation, either version 3 of the
-    License, or (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
--->
-<head><title>OpenWebRX</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<style>
-html, body
-{
-	font-family: "DejaVu Sans", Verdana, Geneva, sans-serif;
-	width: 100%;
-	text-align: center;
-	margin: 0;
-	padding: 0;
-}
-img.logo
-{ 
-	margin-top: 120px;
-}
-div.frame
-{
-	text-align: left;
-	margin:0px auto;
-	width: 800px;
-}
-
-div.panel
-{
-	text-align: center;
-	background-color:#777777; 
-	border-radius: 15px;
-	padding: 12px;
-	font-weight: bold;
-	color: White;
-	font-size: 13pt;
-	/*text-shadow: 1px 1px 4px #444;*/
-	font-family: sans;
-}
-
-div.alt
-{
-	font-size: 10pt;
-	padding-top: 10px;
-}
-
-
-body div a
-{
-	color: #5ca8ff;
-	text-shadow: none;
-}
-
-span.browser
-{
-}
-
-</style>
-<script>
-var irt = function (s,n) {return s.replace(/[a-zA-Z]/g,function(c){return String.fromCharCode((c>="a"?97:65)<=(c=c.charCodeAt(0)-n)?c:c+26);});}
-var sendmail2 = function (s) { window.location.href="mailto:"+irt(s.replace("=",String.fromCharCode(0100)).replace("$","."),8); }
-window.addEventListener("load",function(){rs=document.getElementById("reconnect-secs"); rt=document.getElementById("reconnect-text"); cnt=29;window.setInterval(function(){if(cnt<=-1) window.location.href=window.location.href.split("retry.")[0]; else if(cnt==0) {rt.innerHTML="Reconnecting..."; cnt--;} else rs.innerHTML=(cnt--).toString();},1000);},false);
-</script>
-
-</head>
-<body>
-
-<div class="frame">
-	<img class="logo" src="gfx/openwebrx-logo-big.png" style="height: 60px;"/>
-	<div class="panel">
-		There are no client slots left on this server.
-		<div class="alt">
-			Please wait until a client disconnects.<br /><span id="reconnect-text">We will try to reconnect in <span id="reconnect-secs">30</span> seconds...</span> 
-		</div>
-	</div>
-</div>
-</body>
-</html>
-

htdocs/upgrade.html

@@ -1,95 +0,0 @@
-<html>
-<!--
-
-	This file is part of OpenWebRX, 
-	an open-source SDR receiver software with a web UI.
-	Copyright (c) 2013-2015 by Andras Retzler <randras@sdr.hu>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero General Public License as
-    published by the Free Software Foundation, either version 3 of the
-    License, or (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
--->
-<head><title>OpenWebRX</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<style>
-html, body
-{
-	font-family: "DejaVu Sans", Verdana, Geneva, sans-serif;
-	width: 100%;
-	text-align: center;
-	margin: 0;
-	padding: 0;
-}
-img.logo
-{ 
-	margin-top: 120px;
-}
-div.frame
-{
-	text-align: left;
-	margin:0px auto;
-	width: 800px;
-}
-
-div.panel
-{
-	text-align: center;
-	background-color:#777777; 
-	border-radius: 15px;
-	padding: 12px;
-	font-weight: bold;
-	color: White;
-	font-size: 13pt;
-	/*text-shadow: 1px 1px 4px #444;*/
-	font-family: sans;
-}
-
-div.alt
-{
-	font-size: 10pt;
-	padding-top: 10px;
-}
-
-
-body div a
-{
-	color: #5ca8ff;
-	text-shadow: none;
-}
-
-span.browser
-{
-}
-
-</style>
-<script>
-var irt = function (s,n) {return s.replace(/[a-zA-Z]/g,function(c){return String.fromCharCode((c>="a"?97:65)<=(c=c.charCodeAt(0)-n)?c:c+26);});}
-var sendmail2 = function (s) { window.location.href="mailto:"+irt(s.replace("=",String.fromCharCode(0100)).replace("$","."),8); }
-</script>
-
-</head>
-<body>
-
-<div class="frame">
-	<img class="logo" src="gfx/openwebrx-logo-big.png" style="height: 60px;"/>
-	<div class="panel">
-		Only the latest <span class="browser">Google Chrome</span> browser is supported at the moment.<br/>
-		Please <a href="http://chrome.google.com/">download and install Google Chrome.</a><br />
-		<div class="alt">
-			Alternatively, you may proceed to OpenWebRX, but it's not supposed to work as expected. <br />
-			<a href="/?unsupported">Click here</a> if you still want to try OpenWebRX.</a>
-		</div>
-	</div>
-</div>
-</body>
-</html>
-

openwebrx.py

@@ -1,739 +1,6 @@
-#!/usr/bin/python2
-print "" # python2.7 is required to run OpenWebRX instead of python3. Please run me by: python2 openwebrx.py
-"""
-
-    This file is part of OpenWebRX,
-    an open-source SDR receiver software with a web UI.
-    Copyright (c) 2013-2015 by Andras Retzler <randras@sdr.hu>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero General Public License as
-    published by the Free Software Foundation, either version 3 of the
-    License, or (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-"""
-sw_version="v0.17"
-#0.15 (added nmux)
-
-import os
-import code
-import importlib
-import csdr
-import thread
-import time
-import datetime
-import subprocess
-import os
-from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer
-from SocketServer import ThreadingMixIn
-import fcntl
-import time
-import md5
-import random
-import threading
-import sys
-import traceback
-from collections import namedtuple
-import Queue
-import ctypes
-
-#import rtl_mus
-import rxws
-import uuid
-import signal
-import socket
-
-try: import sdrhu
-except: sdrhu=False
-avatar_ctime=""
-
-#pypy compatibility
-try: import dl
-except: pass
-try: import __pypy__
-except: pass
-pypy="__pypy__" in globals()
-
-"""
-def import_all_plugins(directory):
-    for subdir in os.listdir(directory):
-        if os.path.isdir(directory+subdir) and not subdir[0]=="_":
-            exact_path=directory+subdir+"/plugin.py"
-            if os.path.isfile(exact_path):
-                importname=(directory+subdir+"/plugin").replace("/",".")
-                print "[openwebrx-import] Found plugin:",importname
-                importlib.import_module(importname)
-"""
-
-class MultiThreadHTTPServer(ThreadingMixIn, HTTPServer):
-    pass
-
-def handle_signal(sig, frame):
-    global spectrum_dsp
-    if sig == signal.SIGUSR1:
-        print "[openwebrx] Verbose status information on USR1 signal"
-        print
-        print "time.time() =", time.time()
-        print "clients_mutex.locked() =", clients_mutex.locked()
-        print "clients_mutex_locker =", clients_mutex_locker
-        if server_fail: print "server_fail = ", server_fail
-        print "spectrum_thread_watchdog_last_tick =", spectrum_thread_watchdog_last_tick
-        print
-        print "clients:",len(clients)
-        for client in clients:
-            print
-            for key in client._fields:
-                print "\t%s = %s"%(key,str(getattr(client,key)))
-    elif sig == signal.SIGUSR2:
-        code.interact(local=globals())
-    else:
-        print "[openwebrx] Ctrl+C: aborting."
-        cleanup_clients(True)
-        spectrum_dsp.stop()
-        os._exit(1) #not too graceful exit
-
-def access_log(data):
-    global logs
-    logs.access_log.write("["+datetime.datetime.now().isoformat()+"] "+data+"\n")
-    logs.access_log.flush()
-
-receiver_failed=spectrum_thread_watchdog_last_tick=rtl_thread=spectrum_dsp=server_fail=None
-
-def main():
-    global clients, clients_mutex, pypy, lock_try_time, avatar_ctime, cfg, logs
-    global serverfail, rtl_thread
-    print
-    print "OpenWebRX - Open Source SDR Web App for Everyone!  | for license see LICENSE file in the package"
-    print "_________________________________________________________________________________________________"
-    print
-    print "Author contact info:    Andras Retzler, HA7ILM <randras@sdr.hu>"
-    print
-
-    no_arguments=len(sys.argv)==1
-    if no_arguments: print "[openwebrx-main] Configuration script not specified. I will use: \"config_webrx.py\""
-    cfg=__import__("config_webrx" if no_arguments else sys.argv[1])
-    for option in ("access_log","csdr_dynamic_bufsize","csdr_print_bufsizes","csdr_through"):
-        if not option in dir(cfg): setattr(cfg, option, False) #initialize optional config parameters
-
-    #Open log files
-    logs = type("logs_class", (object,), {"access_log":open(cfg.access_log if cfg.access_log else "/dev/null","a"), "error_log":""})()
-
-    #Set signal handler
-    signal.signal(signal.SIGINT, handle_signal) #http://stackoverflow.com/questions/1112343/how-do-i-capture-sigint-in-python
-    signal.signal(signal.SIGUSR1, handle_signal)
-    signal.signal(signal.SIGUSR2, handle_signal)
-
-    #Pypy
-    if pypy: print "pypy detected (and now something completely different: c code is expected to run at a speed of 3*10^8 m/s?)"
-
-    #Change process name to "openwebrx" (to be seen in ps)
-    try:
-        for libcpath in ["/lib/i386-linux-gnu/libc.so.6","/lib/libc.so.6"]:
-            if os.path.exists(libcpath):
-                libc = dl.open(libcpath)
-                libc.call("prctl", 15, "openwebrx", 0, 0, 0)
-                break
-    except:
-        pass
-
-    #Start rtl thread
-    if os.system("csdr 2> /dev/null") == 32512: #check for csdr
-        print "[openwebrx-main] You need to install \"csdr\" to run OpenWebRX!\n"
-        return
-    if os.system("nmux --help 2> /dev/null") == 32512: #check for nmux
-        print "[openwebrx-main] You need to install an up-to-date version of \"csdr\" that contains the \"nmux\" tool to run OpenWebRX! Please upgrade \"csdr\"!\n"
-        return
-    if cfg.start_rtl_thread:
-        nmux_bufcnt = nmux_bufsize = 0
-        while nmux_bufsize < cfg.samp_rate/4: nmux_bufsize += 4096
-        while nmux_bufsize * nmux_bufcnt < cfg.nmux_memory * 1e6: nmux_bufcnt += 1
-        if nmux_bufcnt == 0 or nmux_bufsize == 0: 
-            print "[openwebrx-main] Error: nmux_bufsize or nmux_bufcnt is zero. These depend on nmux_memory and samp_rate options in config_webrx.py"
-            return
-        print "[openwebrx-main] nmux_bufsize = %d, nmux_bufcnt = %d" % (nmux_bufsize, nmux_bufcnt)
-        cfg.start_rtl_command += "| nmux --bufsize %d --bufcnt %d --port %d --address 127.0.0.1" % (nmux_bufsize, nmux_bufcnt, cfg.iq_server_port)
-        rtl_thread=threading.Thread(target = lambda:subprocess.Popen(cfg.start_rtl_command, shell=True),  args=())
-        rtl_thread.start()
-        print "[openwebrx-main] Started rtl_thread: "+cfg.start_rtl_command
-    print "[openwebrx-main] Waiting for I/Q server to start..."
-    while True:
-        testsock=socket.socket()
-        try: testsock.connect(("127.0.0.1", cfg.iq_server_port))
-        except:
-            time.sleep(0.1)
-            continue
-        testsock.close()
-        break
-    print "[openwebrx-main] I/Q server started."
-
-    #Initialize clients
-    clients=[]
-    clients_mutex=threading.Lock()
-    lock_try_time=0
-
-    #Start watchdog thread
-    print "[openwebrx-main] Starting watchdog threads."
-    mutex_test_thread=threading.Thread(target = mutex_test_thread_function, args = ())
-    mutex_test_thread.start()
-    mutex_watchdog_thread=threading.Thread(target = mutex_watchdog_thread_function, args = ())
-    mutex_watchdog_thread.start()
-
-
-    #Start spectrum thread
-    print "[openwebrx-main] Starting spectrum thread."
-    spectrum_thread=threading.Thread(target = spectrum_thread_function, args = ())
-    spectrum_thread.start()
-    #spectrum_watchdog_thread=threading.Thread(target = spectrum_watchdog_thread_function, args = ())
-    #spectrum_watchdog_thread.start()
-
-    get_cpu_usage()
-    bcastmsg_thread=threading.Thread(target = bcastmsg_thread_function, args = ())
-    bcastmsg_thread.start()
-
-    #threading.Thread(target = measure_thread_function, args = ()).start()
-
-    #Start sdr.hu update thread
-    if sdrhu and cfg.sdrhu_key and cfg.sdrhu_public_listing:
-        print "[openwebrx-main] Starting sdr.hu update thread..."
-        avatar_ctime=str(os.path.getctime("htdocs/gfx/openwebrx-avatar.png"))
-        sdrhu_thread=threading.Thread(target = sdrhu.run, args = ())
-        sdrhu_thread.start()
-
-    #Start HTTP thread
-    httpd = MultiThreadHTTPServer(('', cfg.web_port), WebRXHandler)
-    print('[openwebrx-main] Starting HTTP server.')
-    access_log("Starting OpenWebRX...")
-    httpd.serve_forever()
-
-
-# This is a debug function below:
-measure_value=0
-def measure_thread_function():
-    global measure_value
-    while True:
-        print "[openwebrx-measure] value is",measure_value
-        measure_value=0
-        time.sleep(1)
-
-def bcastmsg_thread_function():
-    global clients
-    while True:
-        time.sleep(3)
-        try: cpu_usage=get_cpu_usage()
-        except: cpu_usage=0
-        cma("bcastmsg_thread")
-        for i in range(0,len(clients)):
-            clients[i].bcastmsg="MSG cpu_usage={0} clients={1}".format(int(cpu_usage*100),len(clients))
-        cmr()
-
-def mutex_test_thread_function():
-    global clients_mutex, lock_try_time
-    while True:
-        time.sleep(0.5)
-        lock_try_time=time.time()
-        clients_mutex.acquire()
-        clients_mutex.release()
-        lock_try_time=0
-
-def cma(what): #clients_mutex acquire
-    global clients_mutex
-    global clients_mutex_locker
-    if not clients_mutex.locked(): clients_mutex_locker = what
-    clients_mutex.acquire()
-
-def cmr():
-    global clients_mutex
-    global clients_mutex_locker
-    clients_mutex_locker = None
-    clients_mutex.release()
-
-def mutex_watchdog_thread_function():
-    global lock_try_time
-    global clients_mutex_locker
-    global clients_mutex
-    while True:
-        if lock_try_time != 0 and time.time()-lock_try_time > 3.0:
-            #if 3 seconds pass without unlock
-            print "[openwebrx-mutex-watchdog] Mutex unlock timeout. Locker: \""+str(clients_mutex_locker)+"\" Now unlocking..."
-            clients_mutex.release()
-        time.sleep(0.5)
-
-def spectrum_watchdog_thread_function():
-    global spectrum_thread_watchdog_last_tick, receiver_failed
-    while True:
-        time.sleep(60)
-        if spectrum_thread_watchdog_last_tick and time.time()-spectrum_thread_watchdog_last_tick > 60.0:
-            print "[openwebrx-spectrum-watchdog] Spectrum timeout. Seems like no I/Q data is coming from the receiver.\nIf you're using RTL-SDR, the receiver hardware may randomly fail under some circumstances:\n1) high temperature,\n2) insufficient current available from the USB port."
-            print "[openwebrx-spectrum-watchdog] Deactivating receiver."
-            receiver_failed="spectrum"
-            return
-
-def check_server():
-    global spectrum_dsp, server_fail, rtl_thread
-    if server_fail: return server_fail
-    #print spectrum_dsp.process.poll()
-    if spectrum_dsp and spectrum_dsp.process.poll()!=None: server_fail = "spectrum_thread dsp subprocess failed"
-    #if rtl_thread and not rtl_thread.is_alive(): server_fail = "rtl_thread failed"
-    if server_fail: print "[openwebrx-check_server] >>>>>>> ERROR:", server_fail
-    return server_fail
-
-def apply_csdr_cfg_to_dsp(dsp):
-    dsp.csdr_dynamic_bufsize = cfg.csdr_dynamic_bufsize
-    dsp.csdr_print_bufsizes = cfg.csdr_print_bufsizes
-    dsp.csdr_through = cfg.csdr_through
-
-def spectrum_thread_function():
-    global clients, spectrum_dsp, spectrum_thread_watchdog_last_tick
-    spectrum_dsp=dsp=csdr.dsp()
-    dsp.nc_port=cfg.iq_server_port
-    dsp.set_demodulator("fft")
-    dsp.set_samp_rate(cfg.samp_rate)
-    dsp.set_fft_size(cfg.fft_size)
-    dsp.set_fft_fps(cfg.fft_fps)
-    dsp.set_fft_averages(int(round(1.0 * cfg.samp_rate / cfg.fft_size / cfg.fft_fps / (1.0 - cfg.fft_voverlap_factor))) if cfg.fft_voverlap_factor>0 else 0)
-    dsp.set_fft_compression(cfg.fft_compression)
-    dsp.set_format_conversion(cfg.format_conversion)
-    apply_csdr_cfg_to_dsp(dsp)
-    sleep_sec=0.87/cfg.fft_fps
-    print "[openwebrx-spectrum] Spectrum thread initialized successfully."
-    dsp.start()
-    if cfg.csdr_dynamic_bufsize:
-        dsp.read(8) #dummy read to skip bufsize & preamble
-        print "[openwebrx-spectrum] Note: CSDR_DYNAMIC_BUFSIZE_ON = 1"
-    print "[openwebrx-spectrum] Spectrum thread started."
-    bytes_to_read=int(dsp.get_fft_bytes_to_read())
-    spectrum_thread_counter=0
-    while True:
-        data=dsp.read(bytes_to_read)
-        #print "gotcha",len(data),"bytes of spectrum data via spectrum_thread_function()"
-        if spectrum_thread_counter >= cfg.fft_fps:
-            spectrum_thread_counter=0
-            spectrum_thread_watchdog_last_tick = time.time() #once every second
-        else: spectrum_thread_counter+=1
-        cma("spectrum_thread")
-        correction=0
-        for i in range(0,len(clients)):
-            i-=correction
-            if (clients[i].ws_started):
-                if clients[i].spectrum_queue.full():
-                    print "[openwebrx-spectrum] client spectrum queue full, closing it."
-                    close_client(i, False)
-                    correction+=1
-                else:
-                    clients[i].spectrum_queue.put([data]) # add new string by "reference" to all clients
-        cmr()
-
-def get_client_by_id(client_id, use_mutex=True):
-    global clients
-    output=-1
-    if use_mutex: cma("get_client_by_id")
-    for i in range(0,len(clients)):
-        if(clients[i].id==client_id):
-            output=i
-            break
-    if use_mutex: cmr()
-    if output==-1:
-        raise ClientNotFoundException
-    else:
-        return output
-
-def log_client(client, what):
-    print "[openwebrx-httpd] client {0}#{1} :: {2}".format(client.ip,client.id,what)
-
-def cleanup_clients(end_all=False):
-    # - if a client doesn't open websocket for too long time, we drop it
-    # - or if end_all is true, we drop all clients
-    global clients
-    cma("cleanup_clients")
-    correction=0
-    for i in range(0,len(clients)):
-        i-=correction
-        #print "cleanup_clients:: len(clients)=", len(clients), "i=", i
-        if end_all or ((not clients[i].ws_started) and (time.time()-clients[i].gen_time)>45):
-            if not end_all: print "[openwebrx] cleanup_clients :: client timeout to open WebSocket"
-            close_client(i, False)
-            correction+=1
-    cmr()
-
-def generate_client_id(ip):
-    #add a client
-    global clients
-    new_client=namedtuple("ClientStruct", "id gen_time ws_started sprectum_queue ip closed bcastmsg dsp loopstat")
-    new_client.id=md5.md5(str(random.random())).hexdigest()
-    new_client.gen_time=time.time()
-    new_client.ws_started=False # to check whether client has ever tried to open the websocket
-    new_client.spectrum_queue=Queue.Queue(1000)
-    new_client.ip=ip
-    new_client.bcastmsg=""
-    new_client.closed=[False] #byref, not exactly sure if required
-    new_client.dsp=None
-    cma("generate_client_id")
-    clients.append(new_client)
-    log_client(new_client,"client added. Clients now: {0}".format(len(clients)))
-    cmr()
-    cleanup_clients()
-    return new_client.id
-
-def close_client(i, use_mutex=True):
-    global clients
-    log_client(clients[i],"client being closed.")
-    if use_mutex: cma("close_client")
-    try:
-        clients[i].dsp.stop()
-    except:
-        exc_type, exc_value, exc_traceback = sys.exc_info()
-        print "[openwebrx] close_client dsp.stop() :: error -",exc_type,exc_value
-        traceback.print_tb(exc_traceback)
-    clients[i].closed[0]=True
-    access_log("Stopped streaming to client: "+clients[i].ip+"#"+str(clients[i].id)+" (users now: "+str(len(clients)-1)+")")
-    del clients[i]
-    if use_mutex: cmr()
-
-# http://www.codeproject.com/Articles/462525/Simple-HTTP-Server-and-Client-in-Python
-# some ideas are used from the artice above
-
-class WebRXHandler(BaseHTTPRequestHandler):
-    def proc_read_thread():
-        pass
-
-    def send_302(self,what):
-        self.send_response(302)
-        self.send_header('Content-type','text/html')
-        self.send_header("Location", "http://{0}:{1}/{2}".format(cfg.server_hostname,cfg.web_port,what))
-        self.end_headers()
-        self.wfile.write("<html><body><h1>Object moved</h1>Please <a href=\"/{0}\">click here</a> to continue.</body></html>".format(what))
-
-
-    def do_GET(self):
-        self.connection.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
-        global dsp_plugin, clients_mutex, clients, avatar_ctime, sw_version, receiver_failed
-        rootdir = 'htdocs'
-        self.path=self.path.replace("..","")
-        path_temp_parts=self.path.split("?")
-        self.path=path_temp_parts[0]
-        request_param=path_temp_parts[1] if(len(path_temp_parts)>1) else ""
-        access_log("GET "+self.path+" from "+self.client_address[0])
-        try:
-            if self.path=="/":
-                self.path="/index.wrx"
-            # there's even another cool tip at http://stackoverflow.com/questions/4419650/how-to-implement-timeout-in-basehttpserver-basehttprequesthandler-python
-            #if self.path[:5]=="/lock": cma("do_GET /lock/") # to test mutex_watchdog_thread. Do not uncomment in production environment!
-            if self.path[:4]=="/ws/":
-                print "[openwebrx-ws] Client requested WebSocket connection"
-                if receiver_failed: self.send_error(500,"Internal server error")
-                try:
-                    # ========= WebSocket handshake  =========
-                    ws_success=True
-                    try:
-                        rxws.handshake(self)
-                        cma("do_GET /ws/")
-                        client_i=get_client_by_id(self.path[4:], False)
-                        myclient=clients[client_i]
-                    except rxws.WebSocketException: ws_success=False
-                    except ClientNotFoundException: ws_success=False
-                    finally:
-                        if clients_mutex.locked(): cmr()
-                    if not ws_success:
-                        self.send_error(400, 'Bad request.')
-                        return
-
-                    # ========= Client handshake =========
-                    if myclient.ws_started:
-                        print "[openwebrx-httpd] error: second WS connection with the same client id, throwing it."
-                        self.send_error(400, 'Bad request.') #client already started
-                        return
-                    rxws.send(self, "CLIENT DE SERVER openwebrx.py")
-                    client_ans=rxws.recv(self, True)
-                    if client_ans[:16]!="SERVER DE CLIENT":
-                        rxws.send("ERR Bad answer.")
-                        return
-                    myclient.ws_started=True
-                    #send default parameters
-                    rxws.send(self, "MSG center_freq={0} bandwidth={1} fft_size={2} fft_fps={3} audio_compression={4} fft_compression={5} max_clients={6} setup".format(str(cfg.shown_center_freq),str(cfg.samp_rate),cfg.fft_size,cfg.fft_fps,cfg.audio_compression,cfg.fft_compression,cfg.max_clients))
-
-                    # ========= Initialize DSP =========
-                    dsp=csdr.dsp()
-                    dsp_initialized=False
-                    dsp.set_audio_compression(cfg.audio_compression)
-                    dsp.set_fft_compression(cfg.fft_compression) #used by secondary chains
-                    dsp.set_format_conversion(cfg.format_conversion)
-                    dsp.set_offset_freq(0)
-                    dsp.set_bpf(-4000,4000)
-                    dsp.set_secondary_fft_size(cfg.digimodes_fft_size)
-                    dsp.nc_port=cfg.iq_server_port
-                    apply_csdr_cfg_to_dsp(dsp)
-                    myclient.dsp=dsp
-                    do_secondary_demod=False
-                    access_log("Started streaming to client: "+self.client_address[0]+"#"+myclient.id+" (users now: "+str(len(clients))+")")
-
-                    while True:
-                        myclient.loopstat=0
-                        if myclient.closed[0]:
-                            print "[openwebrx-httpd:ws] client closed by other thread"
-                            break
-
-                        # ========= send audio =========
-                        if dsp_initialized:
-                            myclient.loopstat=10
-                            temp_audio_data=dsp.read(256)
-                            myclient.loopstat=11
-                            rxws.send(self, temp_audio_data, "AUD ")
-
-                        # ========= send spectrum =========
-                        while not myclient.spectrum_queue.empty():
-                            myclient.loopstat=20
-                            spectrum_data=myclient.spectrum_queue.get()
-                            #spectrum_data_mid=len(spectrum_data[0])/2
-                            #rxws.send(self, spectrum_data[0][spectrum_data_mid:]+spectrum_data[0][:spectrum_data_mid], "FFT ")
-                            # (it seems GNU Radio exchanges the first and second part of the FFT output, we correct it)
-                            myclient.loopstat=21
-                            rxws.send(self, spectrum_data[0],"FFT ")
-
-                        # ========= send smeter_level =========
-                        smeter_level=None
-                        while True:
-                            try:
-                                myclient.loopstat=30
-                                smeter_level=dsp.get_smeter_level()
-                                if smeter_level == None: break
-                            except:
-                                break
-                        if smeter_level!=None:
-                            myclient.loopstat=31
-                            rxws.send(self, "MSG s={0}".format(smeter_level))
-
-                        # ========= send bcastmsg =========
-                        if myclient.bcastmsg!="":
-                            myclient.loopstat=40
-                            rxws.send(self,myclient.bcastmsg)
-                            myclient.bcastmsg=""
-
-                        # ========= send secondary =========
-                        if do_secondary_demod:
-                            myclient.loopstat=41
-                            while True:
-                                try: 
-                                    secondary_spectrum_data=dsp.read_secondary_fft(dsp.get_secondary_fft_bytes_to_read())
-                                    if len(secondary_spectrum_data) == 0: break
-                                    # print "len(secondary_spectrum_data)", len(secondary_spectrum_data) #TODO digimodes
-                                    rxws.send(self, secondary_spectrum_data, "FFTS")
-                                except: break
-                            myclient.loopstat=42
-                            while True:
-                                try:
-                                    myclient.loopstat=422
-                                    secondary_demod_data=dsp.read_secondary_demod(1)
-                                    myclient.loopstat=423
-                                    if len(secondary_demod_data) == 0: break
-                                    # print "len(secondary_demod_data)", len(secondary_demod_data), secondary_demod_data #TODO digimodes
-                                    rxws.send(self, secondary_demod_data, "DAT ")
-                                except: break
-
-                        # ========= process commands =========
-                        while True:
-                            myclient.loopstat=50
-                            rdata=rxws.recv(self, False)
-                            myclient.loopstat=51
-                            #try:
-                            if not rdata: break
-                            elif rdata[:3]=="SET":
-                                print "[openwebrx-httpd:ws,%d] command: %s"%(client_i,rdata)
-                                pairs=rdata[4:].split(" ")
-                                bpf_set=False
-                                new_bpf=dsp.get_bpf()
-                                filter_limit=dsp.get_output_rate()/2
-                                for pair in pairs:
-                                    param_name, param_value = pair.split("=")
-                                    if param_name == "low_cut" and -filter_limit <= int(param_value) <= filter_limit:
-                                        bpf_set=True
-                                        new_bpf[0]=int(param_value)
-                                    elif param_name == "high_cut" and -filter_limit <= int(param_value) <= filter_limit:
-                                        bpf_set=True
-                                        new_bpf[1]=int(param_value)
-                                    elif param_name == "offset_freq" and -cfg.samp_rate/2 <= int(param_value) <= cfg.samp_rate/2:
-                                        myclient.loopstat=510
-                                        dsp.set_offset_freq(int(param_value))
-                                    elif param_name == "squelch_level" and float(param_value) >= 0:
-                                        myclient.loopstat=520
-                                        dsp.set_squelch_level(float(param_value))
-                                    elif param_name=="mod":
-                                        if (dsp.get_demodulator()!=param_value):
-                                            myclient.loopstat=530
-                                            if dsp_initialized: dsp.stop()
-                                            dsp.set_demodulator(param_value)
-                                            if dsp_initialized: dsp.start()
-                                    elif param_name == "output_rate":
-                                        if not dsp_initialized:
-                                            myclient.loopstat=540
-                                            dsp.set_output_rate(int(param_value))
-                                            myclient.loopstat=541
-                                            dsp.set_samp_rate(cfg.samp_rate)
-                                    elif param_name=="action" and param_value=="start":
-                                        if not dsp_initialized:
-                                            myclient.loopstat=550
-                                            dsp.start()
-                                            dsp_initialized=True
-                                    elif param_name=="secondary_mod" and cfg.digimodes_enable:
-                                        if (dsp.get_secondary_demodulator() != param_value):
-                                            if dsp_initialized: dsp.stop()
-                                            if param_value == "off":
-                                                dsp.set_secondary_demodulator(None)
-                                                do_secondary_demod = False
-                                            else:
-                                                dsp.set_secondary_demodulator(param_value)
-                                                do_secondary_demod = True
-                                                rxws.send(self, "MSG secondary_fft_size={0} if_samp_rate={1} secondary_bw={2} secondary_setup".format(cfg.digimodes_fft_size, dsp.if_samp_rate(), dsp.secondary_bw()))
-                                            if dsp_initialized: dsp.start()
-                                    elif param_name=="secondary_offset_freq" and 0 <= int(param_value) <= dsp.if_samp_rate()/2 and cfg.digimodes_enable:
-                                        dsp.set_secondary_offset_freq(int(param_value))
-                                    else:
-                                        print "[openwebrx-httpd:ws] invalid parameter"
-                                if bpf_set:
-                                    myclient.loopstat=560
-                                    dsp.set_bpf(*new_bpf)
-                                #code.interact(local=locals())
-                except:
-                    myclient.loopstat=990
-                    exc_type, exc_value, exc_traceback = sys.exc_info()
-                    print "[openwebrx-httpd:ws] exception: ",exc_type,exc_value
-                    traceback.print_tb(exc_traceback) #TODO digimodes
-                    #if exc_value[0]==32: #"broken pipe", client disconnected
-                    #    pass
-                    #elif exc_value[0]==11: #"resource unavailable" on recv, client disconnected
-                    #    pass
-                    #else:
-                    #    print "[openwebrx-httpd] error in /ws/ handler: ",exc_type,exc_value
-                    #    traceback.print_tb(exc_traceback)
-
-                #stop dsp for the disconnected client
-                myclient.loopstat=991
-                try:
-                    dsp.stop()
-                    del dsp
-                except:
-                    print "[openwebrx-httpd] error in dsp.stop()"
-
-                #delete disconnected client
-                myclient.loopstat=992
-                try:
-                    cma("do_GET /ws/ delete disconnected")
-                    id_to_close=get_client_by_id(myclient.id,False)
-                    close_client(id_to_close,False)
-                except:
-                    exc_type, exc_value, exc_traceback = sys.exc_info()
-                    print "[openwebrx-httpd] client cannot be closed: ",exc_type,exc_value
-                    traceback.print_tb(exc_traceback)
-                finally:
-                    cmr()
-                myclient.loopstat=1000
-                return
-            elif self.path in ("/status", "/status/"):
-                #self.send_header('Content-type','text/plain')
-                self.send_response(200)
-                self.end_headers()
-                getbands=lambda: str(int(cfg.shown_center_freq-cfg.samp_rate/2))+"-"+str(int(cfg.shown_center_freq+cfg.samp_rate/2))
-                self.wfile.write("status="+("inactive" if receiver_failed else "active")+"\nname="+cfg.receiver_name+"\nsdr_hw="+cfg.receiver_device+"\nop_email="+cfg.receiver_admin+"\nbands="+getbands()+"\nusers="+str(len(clients))+"\nusers_max="+str(cfg.max_clients)+"\navatar_ctime="+avatar_ctime+"\ngps="+str(cfg.receiver_gps)+"\nasl="+str(cfg.receiver_asl)+"\nloc="+cfg.receiver_location+"\nsw_version="+sw_version+"\nantenna="+cfg.receiver_ant+"\n")
-                print "[openwebrx-httpd] GET /status/ from",self.client_address[0]
-            else:
-                f=open(rootdir+self.path)
-                data=f.read()
-                extension=self.path[(len(self.path)-4):len(self.path)]
-                extension=extension[2:] if extension[1]=='.' else extension[1:]
-                checkresult=check_server()
-                if extension == "wrx" and (checkresult or receiver_failed):
-                    self.send_302("inactive.html")
-                    return
-                anyStringsPresentInUserAgent=lambda a: reduce(lambda x,y:x or y, map(lambda b:self.headers['user-agent'].count(b), a), False)
-                if extension == "wrx" and ( (not anyStringsPresentInUserAgent(("Chrome","Firefox","Googlebot","iPhone","iPad","iPod"))) if 'user-agent' in self.headers.keys() else True ) and (not request_param.count("unsupported")):
-                    self.send_302("upgrade.html")
-                    return
-                if extension == "wrx":
-                    cleanup_clients(False)
-                    if cfg.max_clients<=len(clients):
-                        self.send_302("retry.html")
-                        return
-                self.send_response(200)
-                if(("wrx","html","htm").count(extension)):
-                    self.send_header('Content-type','text/html')
-                elif(extension=="js"):
-                    self.send_header('Content-type','text/javascript')
-                elif(extension=="css"):
-                    self.send_header('Content-type','text/css')
-                self.end_headers()
-                if extension == "wrx":
-                    replace_dictionary=(
-                        ("%[RX_PHOTO_DESC]",cfg.photo_desc),
-                        ("%[CLIENT_ID]", generate_client_id(self.client_address[0])) if "%[CLIENT_ID]" in data else "",
-                        ("%[WS_URL]","ws://"+cfg.server_hostname+":"+str(cfg.web_port)+"/ws/"),
-                        ("%[RX_TITLE]",cfg.receiver_name),
-                        ("%[RX_LOC]",cfg.receiver_location),
-                        ("%[RX_QRA]",cfg.receiver_qra),
-                        ("%[RX_ASL]",str(cfg.receiver_asl)),
-                        ("%[RX_GPS]",str(cfg.receiver_gps[0])+","+str(cfg.receiver_gps[1])),
-                        ("%[RX_PHOTO_HEIGHT]",str(cfg.photo_height)),("%[RX_PHOTO_TITLE]",cfg.photo_title),
-                        ("%[RX_ADMIN]",cfg.receiver_admin),
-                        ("%[RX_ANT]",cfg.receiver_ant),
-                        ("%[RX_DEVICE]",cfg.receiver_device),
-                        ("%[AUDIO_BUFSIZE]",str(cfg.client_audio_buffer_size)),
-                        ("%[START_OFFSET_FREQ]",str(cfg.start_freq-cfg.center_freq)),
-                        ("%[START_MOD]",cfg.start_mod),
-                        ("%[WATERFALL_COLORS]",cfg.waterfall_colors),
-                        ("%[WATERFALL_MIN_LEVEL]",str(cfg.waterfall_min_level)),
-                        ("%[WATERFALL_MAX_LEVEL]",str(cfg.waterfall_max_level)),
-                        ("%[WATERFALL_AUTO_LEVEL_MARGIN]","[%d,%d]"%cfg.waterfall_auto_level_margin),
-                        ("%[DIGIMODES_ENABLE]",("true" if cfg.digimodes_enable else "false")),
-                        ("%[MATHBOX_WATERFALL_FRES]",str(cfg.mathbox_waterfall_frequency_resolution)),
-                        ("%[MATHBOX_WATERFALL_THIST]",str(cfg.mathbox_waterfall_history_length)),
-                        ("%[MATHBOX_WATERFALL_COLORS]",cfg.mathbox_waterfall_colors)
-                    )
-                    for rule in replace_dictionary:
-                        while data.find(rule[0])!=-1:
-                            data=data.replace(rule[0],rule[1])
-                self.wfile.write(data)
-                f.close()
-            return
-        except IOError:
-            self.send_error(404, 'Invalid path.')
-        except:
-            exc_type, exc_value, exc_traceback = sys.exc_info()
-            print "[openwebrx-httpd] error (@outside):", exc_type, exc_value
-            traceback.print_tb(exc_traceback)
-
-
-class ClientNotFoundException(Exception):
-    pass
-
-last_worktime=0
-last_idletime=0
-
-def get_cpu_usage():
-    global last_worktime, last_idletime
-    try:
-        f=open("/proc/stat","r")
-    except:
-        return 0 #Workaround, possibly we're on a Mac
-    line=""
-    while not "cpu " in line: line=f.readline()
-    f.close()
-    spl=line.split(" ")
-    worktime=int(spl[2])+int(spl[3])+int(spl[4])
-    idletime=int(spl[5])
-    dworktime=(worktime-last_worktime)
-    didletime=(idletime-last_idletime)
-    rate=float(dworktime)/(didletime+dworktime)
-    last_worktime=worktime
-    last_idletime=idletime
-    if(last_worktime==0): return 0
-    return rate
+#!/usr/bin/env python3
 
+from owrx.__main__ import main
 
 if __name__ == "__main__":
     main()

owrx/__main__.py

@@ -0,0 +1,59 @@
+from http.server import HTTPServer
+from owrx.http import RequestHandler
+from owrx.config import PropertyManager
+from owrx.feature import FeatureDetector
+from owrx.sdr import SdrService
+from socketserver import ThreadingMixIn
+from owrx.sdrhu import SdrHuUpdater
+from owrx.service import Services
+from owrx.websocket import WebSocketConnection
+from owrx.pskreporter import PskReporter
+
+import logging
+
+logging.basicConfig(level=logging.DEBUG, format="%(asctime)s - %(name)s - %(levelname)s - %(message)s")
+
+
+class ThreadedHttpServer(ThreadingMixIn, HTTPServer):
+    pass
+
+
+def main():
+    print(
+        """
+
+OpenWebRX - Open Source SDR Web App for Everyone!  | for license see LICENSE file in the package
+_________________________________________________________________________________________________
+
+Author contact info:    Jakob Ketterl, DD5JFK <dd5jfk@darc.de>
+
+    """
+    )
+
+    pm = PropertyManager.getSharedInstance().loadConfig()
+
+    featureDetector = FeatureDetector()
+    if not featureDetector.is_available("core"):
+        print(
+            "you are missing required dependencies to run openwebrx. "
+            "please check that the following core requirements are installed:"
+        )
+        print(", ".join(featureDetector.get_requirements("core")))
+        return
+
+    # Get error messages about unknown / unavailable features as soon as possible
+    SdrService.loadProps()
+
+    if "sdrhu_key" in pm and pm["sdrhu_public_listing"]:
+        updater = SdrHuUpdater()
+        updater.start()
+
+    Services.start()
+
+    try:
+        server = ThreadedHttpServer(("0.0.0.0", pm.getPropertyValue("web_port")), RequestHandler)
+        server.serve_forever()
+    except KeyboardInterrupt:
+        WebSocketConnection.closeAll()
+        Services.stop()
+        PskReporter.stop()

owrx/aprs.py

@@ -0,0 +1,575 @@
+from owrx.kiss import KissDeframer
+from owrx.map import Map, LatLngLocation
+from owrx.bands import Bandplan
+from owrx.metrics import Metrics, CounterMetric
+from owrx.parser import Parser
+from datetime import datetime, timezone
+import re
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+# speed is in knots... convert to metric (km/h)
+knotsToKilometers = 1.852
+feetToMeters = 0.3048
+milesToKilometers = 1.609344
+inchesToMilimeters = 25.4
+
+
+def fahrenheitToCelsius(f):
+    return (f - 32) * 5 / 9
+
+
+# not sure what the correct encoding is. it seems TAPR has set utf-8 as a standard, but not everybody is following it.
+encoding = "utf-8"
+
+# regex for altitute in comment field
+altitudeRegex = re.compile("(^.*)\\/A=([0-9]{6})(.*$)")
+
+# regex for parsing third-party headers
+thirdpartyeRegex = re.compile("^([a-zA-Z0-9-]+)>((([a-zA-Z0-9-]+\\*?,)*)([a-zA-Z0-9-]+\\*?)):(.*)$")
+
+# regex for getting the message id out of message
+messageIdRegex = re.compile("^(.*){([0-9]{1,5})$")
+
+
+def decodeBase91(input):
+    base = decodeBase91(input[:-1]) * 91 if len(input) > 1 else 0
+    return base + (ord(input[-1]) - 33)
+
+
+def getSymbolData(symbol, table):
+    return {"symbol": symbol, "table": table, "index": ord(symbol) - 33, "tableindex": ord(table) - 33}
+
+
+class Ax25Parser(object):
+    def parse(self, ax25frame):
+        control_pid = ax25frame.find(bytes([0x03, 0xF0]))
+        if control_pid % 7 > 0:
+            logger.warning("aprs packet framing error: control/pid position not aligned with 7-octet callsign data")
+
+        def chunks(l, n):
+            """Yield successive n-sized chunks from l."""
+            for i in range(0, len(l), n):
+                yield l[i : i + n]
+
+        return {
+            "destination": self.extractCallsign(ax25frame[0:7]),
+            "source": self.extractCallsign(ax25frame[7:14]),
+            "path": [self.extractCallsign(c) for c in chunks(ax25frame[14:control_pid], 7)],
+            "data": ax25frame[control_pid + 2 :],
+        }
+
+    def extractCallsign(self, input):
+        cs = bytes([b >> 1 for b in input[0:6]]).decode(encoding, "replace").strip()
+        ssid = (input[6] & 0b00011110) >> 1
+        if ssid > 0:
+            return "{callsign}-{ssid}".format(callsign=cs, ssid=ssid)
+        else:
+            return cs
+
+
+class WeatherMapping(object):
+    def __init__(self, char, key, length, scale=None):
+        self.char = char
+        self.key = key
+        self.length = length
+        self.scale = scale
+
+    def matches(self, input):
+        return self.char == input[0] and len(input) > self.length
+
+    def updateWeather(self, weather, input):
+        def deepApply(obj, key, v):
+            keys = key.split(".")
+            if len(keys) > 1:
+                if not keys[0] in obj:
+                    obj[keys[0]] = {}
+                deepApply(obj[keys[0]], ".".join(keys[1:]), v)
+            else:
+                obj[key] = v
+
+        try:
+            value = int(input[1 : 1 + self.length])
+            if self.scale:
+                value = self.scale(value)
+            deepApply(weather, self.key, value)
+        except ValueError:
+            pass
+        remain = input[1 + self.length :]
+        return weather, remain
+
+
+class WeatherParser(object):
+    mappings = [
+        WeatherMapping("c", "wind.direction", 3),
+        WeatherMapping("s", "wind.speed", 3, lambda x: x * milesToKilometers),
+        WeatherMapping("g", "wind.gust", 3, lambda x: x * milesToKilometers),
+        WeatherMapping("t", "temperature", 3, fahrenheitToCelsius),
+        WeatherMapping("r", "rain.hour", 3, lambda x: x / 100 * inchesToMilimeters),
+        WeatherMapping("p", "rain.day", 3, lambda x: x / 100 * inchesToMilimeters),
+        WeatherMapping("P", "rain.sincemidnight", 3, lambda x: x / 100 * inchesToMilimeters),
+        WeatherMapping("h", "humidity", 2),
+        WeatherMapping("b", "barometricpressure", 5, lambda x: x / 10),
+        WeatherMapping("s", "snowfall", 3, lambda x: x * 25.4),
+    ]
+
+    def __init__(self, data, weather={}):
+        self.data = data
+        self.weather = weather
+
+    def getWeather(self):
+        doWork = True
+        weather = self.weather
+        while doWork:
+            mapping = next((m for m in WeatherParser.mappings if m.matches(self.data)), None)
+            if mapping:
+                (weather, remain) = mapping.updateWeather(weather, self.data)
+                self.data = remain
+                doWork = len(self.data) > 0
+            else:
+                doWork = False
+        return weather
+
+    def getRemainder(self):
+        return self.data
+
+
+class AprsLocation(LatLngLocation):
+    def __init__(self, data):
+        super().__init__(data["lat"], data["lon"])
+        self.data = data
+
+    def __dict__(self):
+        res = super(AprsLocation, self).__dict__()
+        for key in ["comment", "symbol", "course", "speed"]:
+            if key in self.data:
+                res[key] = self.data[key]
+        return res
+
+
+class AprsParser(Parser):
+    def __init__(self, handler):
+        super().__init__(handler)
+        self.ax25parser = Ax25Parser()
+        self.deframer = KissDeframer()
+        self.metric = self.getMetric()
+
+    def setDialFrequency(self, freq):
+        super().setDialFrequency(freq)
+        self.metric = self.getMetric()
+
+    def getMetric(self):
+        band = "unknown"
+        if self.band is not None:
+            band = self.band.getName()
+        name = "aprs.decodes.{band}.aprs".format(band=band)
+        metrics = Metrics.getSharedInstance()
+        metric = metrics.getMetric(name)
+        if metric is None:
+            metric = CounterMetric()
+            metrics.addMetric(name, metric)
+        return metric
+
+    def parse(self, raw):
+        for frame in self.deframer.parse(raw):
+            try:
+                data = self.ax25parser.parse(frame)
+
+                # TODO how can we tell if this is an APRS frame at all?
+                aprsData = self.parseAprsData(data)
+
+                logger.debug("decoded APRS data: %s", aprsData)
+                self.updateMap(aprsData)
+                self.metric.inc()
+                self.handler.write_aprs_data(aprsData)
+            except Exception:
+                logger.exception("exception while parsing aprs data")
+
+    def updateMap(self, mapData):
+        if "type" in mapData and mapData["type"] == "thirdparty" and "data" in mapData:
+            mapData = mapData["data"]
+        if "lat" in mapData and "lon" in mapData:
+            loc = AprsLocation(mapData)
+            source = mapData["source"]
+            if "type" in mapData:
+                if mapData["type"] == "item":
+                    source = mapData["item"]
+                elif mapData["type"] == "object":
+                    source = mapData["object"]
+            Map.getSharedInstance().updateLocation(source, loc, "APRS", self.band)
+
+    def hasCompressedCoordinates(self, raw):
+        return raw[0] == "/" or raw[0] == "\\"
+
+    def parseUncompressedCoordinates(self, raw):
+        lat = int(raw[0:2]) + float(raw[2:7]) / 60
+        if raw[7] == "S":
+            lat *= -1
+        lon = int(raw[9:12]) + float(raw[12:17]) / 60
+        if raw[17] == "W":
+            lon *= -1
+        return {"lat": lat, "lon": lon, "symbol": getSymbolData(raw[18], raw[8])}
+
+    def parseCompressedCoordinates(self, raw):
+        return {
+            "lat": 90 - decodeBase91(raw[1:5]) / 380926,
+            "lon": -180 + decodeBase91(raw[5:9]) / 190463,
+            "symbol": getSymbolData(raw[9], raw[0]),
+        }
+
+    def parseTimestamp(self, raw):
+        now = datetime.now()
+        if raw[6] == "h":
+            ts = datetime.strptime(raw[0:6], "%H%M%S")
+            ts = ts.replace(year=now.year, month=now.month, day=now.month, tzinfo=timezone.utc)
+        else:
+            ts = datetime.strptime(raw[0:6], "%d%H%M")
+            ts = ts.replace(year=now.year, month=now.month)
+            if raw[6] == "z":
+                ts = ts.replace(tzinfo=timezone.utc)
+            elif raw[6] == "/":
+                ts = ts.replace(tzinfo=now.tzinfo)
+            else:
+                logger.warning("invalid timezone info byte: %s", raw[6])
+        return int(ts.timestamp() * 1000)
+
+    def parseStatusUpate(self, raw):
+        res = {"type": "status"}
+        if raw[6] == "z":
+            res["timestamp"] = self.parseTimestamp(raw[0:7])
+            res["comment"] = raw[7:]
+        else:
+            res["comment"] = raw
+        return res
+
+    def parseAprsData(self, data):
+        information = data["data"]
+
+        # forward some of the ax25 data
+        aprsData = {"source": data["source"], "destination": data["destination"], "path": data["path"]}
+
+        if information[0] == 0x1C or information[0] == ord("`") or information[0] == ord("'"):
+            aprsData.update(MicEParser().parse(data))
+            return aprsData
+
+        information = information.decode(encoding, "replace")
+
+        # APRS data type identifier
+        dti = information[0]
+
+        if dti == "!" or dti == "=":
+            # position without timestamp
+            aprsData.update(self.parseRegularAprsData(information[1:]))
+        elif dti == "/" or dti == "@":
+            # position with timestamp
+            aprsData["timestamp"] = self.parseTimestamp(information[1:8])
+            aprsData.update(self.parseRegularAprsData(information[8:]))
+        elif dti == ">":
+            # status update
+            aprsData.update(self.parseStatusUpate(information[1:]))
+        elif dti == "}":
+            # third party
+            aprsData.update(self.parseThirdpartyAprsData(information[1:]))
+        elif dti == ":":
+            # message
+            aprsData.update(self.parseMessage(information[1:]))
+        elif dti == ";":
+            # object
+            aprsData.update(self.parseObject(information[1:]))
+        elif dti == ")":
+            # item
+            aprsData.update(self.parseItem(information[1:]))
+
+        return aprsData
+
+    def parseObject(self, information):
+        result = {"type": "object"}
+        if len(information) > 16:
+            result["object"] = information[0:9].strip()
+            result["live"] = information[9] == "*"
+            result["timestamp"] = self.parseTimestamp(information[10:17])
+            result.update(self.parseRegularAprsData(information[17:]))
+            # override type, losing information about compression
+            result["type"] = "object"
+        return result
+
+    def parseItem(self, information):
+        result = {"type": "item"}
+        if len(information) > 3:
+            indexes = [information[0:10].find(p) for p in ["!", "_"]]
+            filtered = [i for i in indexes if i >= 3]
+            filtered.sort()
+            if len(filtered):
+                index = filtered[0]
+                result["item"] = information[0:index]
+                result["live"] = information[index] == "!"
+                result.update(self.parseRegularAprsData(information[index + 1 :]))
+                # override type, losing information about compression
+                result["type"] = "item"
+        return result
+
+    def parseMessage(self, information):
+        result = {"type": "message"}
+        if len(information) > 9 and information[9] == ":":
+            result["adressee"] = information[0:9]
+            message = information[10:]
+            if len(message) > 3 and message[0:3] == "ack":
+                result["type"] = "messageacknowledgement"
+                result["messageid"] = int(message[3:8])
+            elif len(message) > 3 and message[0:3] == "rej":
+                result["type"] = "messagerejection"
+                result["messageid"] = int(message[3:8])
+            else:
+                matches = messageIdRegex.match(message)
+                if matches:
+                    result["messageid"] = int(matches.group(2))
+                    message = matches.group(1)
+                result["message"] = message
+        return result
+
+    def parseThirdpartyAprsData(self, information):
+        matches = thirdpartyeRegex.match(information)
+        if matches:
+            path = matches.group(2).split(",")
+            destination = next((c.strip("*").upper() for c in path if c.endswith("*")), None)
+            data = self.parseAprsData(
+                {
+                    "source": matches.group(1).upper(),
+                    "destination": destination,
+                    "path": path,
+                    "data": matches.group(6).encode(encoding),
+                }
+            )
+            return {"type": "thirdparty", "data": data}
+
+        return {"type": "thirdparty"}
+
+    def parseRegularAprsData(self, information):
+        if self.hasCompressedCoordinates(information):
+            aprsData = self.parseCompressedCoordinates(information[0:10])
+            aprsData["type"] = "compressed"
+            if information[10] != " ":
+                if information[10] == "{":
+                    # pre-calculated radio range
+                    aprsData["range"] = 2 * 1.08 ** (ord(information[11]) - 33) * milesToKilometers
+                else:
+                    aprsData["course"] = (ord(information[10]) - 33) * 4
+                    # speed is in knots... convert to metric (km/h)
+                    aprsData["speed"] = (1.08 ** (ord(information[11]) - 33) - 1) * knotsToKilometers
+                # compression type
+                t = ord(information[12])
+                aprsData["fix"] = (t & 0b00100000) > 0
+                sources = ["other", "GLL", "GGA", "RMC"]
+                aprsData["nmeasource"] = sources[(t & 0b00011000) >> 3]
+                origins = [
+                    "Compressed",
+                    "TNC BText",
+                    "Software",
+                    "[tbd]",
+                    "KPC3",
+                    "Pico",
+                    "Other tracker",
+                    "Digipeater conversion",
+                ]
+                aprsData["compressionorigin"] = origins[t & 0b00000111]
+            comment = information[13:]
+        else:
+            aprsData = self.parseUncompressedCoordinates(information[0:19])
+            aprsData["type"] = "regular"
+            comment = information[19:]
+
+        def decodeHeightGainDirectivity(comment):
+            res = {"height": 2 ** int(comment[4]) * 10 * feetToMeters, "gain": int(comment[5])}
+            directivity = int(comment[6])
+            if directivity == 0:
+                res["directivity"] = "omni"
+            elif 0 < directivity < 9:
+                res["directivity"] = directivity * 45
+            return res
+
+        # aprs data extensions
+        # yes, weather stations are officially identified by their symbols. go figure...
+        if "symbol" in aprsData and aprsData["symbol"]["index"] == 62:
+            # weather report
+            weather = {}
+            if len(comment) > 6 and comment[3] == "/":
+                try:
+                    weather["wind"] = {"direction": int(comment[0:3]), "speed": int(comment[4:7]) * milesToKilometers}
+                except ValueError:
+                    pass
+                comment = comment[7:]
+
+            parser = WeatherParser(comment, weather)
+            aprsData["weather"] = parser.getWeather()
+            comment = parser.getRemainder()
+        elif len(comment) > 6:
+            if comment[3] == "/":
+                # course and speed
+                # for a weather report, this would be wind direction and speed
+                try:
+                    aprsData["course"] = int(comment[0:3])
+                    aprsData["speed"] = int(comment[4:7]) * knotsToKilometers
+                except ValueError:
+                    pass
+                comment = comment[7:]
+            elif comment[0:3] == "PHG":
+                # station power and effective antenna height/gain/directivity
+                try:
+                    powerCodes = [0, 1, 4, 9, 16, 25, 36, 49, 64, 81]
+                    aprsData["power"] = powerCodes[int(comment[3])]
+                    aprsData.update(decodeHeightGainDirectivity(comment))
+                except ValueError:
+                    pass
+                comment = comment[7:]
+            elif comment[0:3] == "RNG":
+                # pre-calculated radio range
+                try:
+                    aprsData["range"] = int(comment[3:7]) * milesToKilometers
+                except ValueError:
+                    pass
+                comment = comment[7:]
+            elif comment[0:3] == "DFS":
+                # direction finding signal strength and antenna height/gain
+                try:
+                    aprsData["strength"] = int(comment[3])
+                    aprsData.update(decodeHeightGainDirectivity(comment))
+                except ValueError:
+                    pass
+                comment = comment[7:]
+
+        matches = altitudeRegex.match(comment)
+        if matches:
+            aprsData["altitude"] = int(matches.group(2)) * feetToMeters
+            comment = matches.group(1) + matches.group(3)
+
+        aprsData["comment"] = comment
+
+        return aprsData
+
+
+class MicEParser(object):
+    def extractNumber(self, input):
+        n = ord(input)
+        if n >= ord("P"):
+            return n - ord("P")
+        if n >= ord("A"):
+            return n - ord("A")
+        return n - ord("0")
+
+    def listToNumber(self, input):
+        base = self.listToNumber(input[:-1]) * 10 if len(input) > 1 else 0
+        return base + input[-1]
+
+    def extractAltitude(self, comment):
+        if len(comment) < 4 or comment[3] != "}":
+            return (comment, None)
+        return comment[4:], decodeBase91(comment[:3]) - 10000
+
+    def extractDevice(self, comment):
+        if len(comment) > 0:
+            if comment[0] == ">":
+                if len(comment) > 1:
+                    if comment[-1] == "=":
+                        return comment[1:-1], {"manufacturer": "Kenwood", "device": "TH-D72"}
+                    if comment[-1] == "^":
+                        return comment[1:-1], {"manufacturer": "Kenwood", "device": "TH-D74"}
+                return comment[1:], {"manufacturer": "Kenwood", "device": "TH-D7A"}
+            if comment[0] == "]":
+                if len(comment) > 1 and comment[-1] == "=":
+                    return comment[1:-1], {"manufacturer": "Kenwood", "device": "TM-D710"}
+                return comment[1:], {"manufacturer": "Kenwood", "device": "TM-D700"}
+            if len(comment) > 2 and (comment[0] == "`" or comment[0] == "'"):
+                if comment[-2] == "_":
+                    devices = {
+                        "b": "VX-8",
+                        '"': "FTM-350",
+                        "#": "VX-8G",
+                        "$": "FT1D",
+                        "%": "FTM-400DR",
+                        ")": "FTM-100D",
+                        "(": "FT2D",
+                        "0": "FT3D",
+                    }
+                    return comment[1:-2], {"manufacturer": "Yaesu", "device": devices.get(comment[-1], "Unknown")}
+                if comment[-2:] == " X":
+                    return comment[1:-2], {"manufacturer": "SainSonic", "device": "AP510"}
+                if comment[-2] == "(":
+                    devices = {"5": "D578UV", "8": "D878UV"}
+                    return comment[1:-2], {"manufacturer": "Anytone", "device": devices.get(comment[-1], "Unknown")}
+                if comment[-2] == "|":
+                    devices = {"3": "TinyTrack3", "4": "TinyTrack4"}
+                    return comment[1:-2], {"manufacturer": "Byonics", "device": devices.get(comment[-1], "Unknown")}
+                if comment[-2:] == "^v":
+                    return comment[1:-2], {"manufacturer": "HinzTec", "device": "anyfrog"}
+                if comment[-2] == ":":
+                    devices = {"4": "P4dragon DR-7400 modem", "8": "P4dragon DR-7800 modem"}
+                    return (
+                        comment[1:-2],
+                        {"manufacturer": "SCS GmbH & Co.", "device": devices.get(comment[-1], "Unknown")},
+                    )
+                if comment[-2:] == "~v":
+                    return comment[1:-2], {"manufacturer": "Other", "device": "Other"}
+                return comment[1:-2], None
+        return comment, None
+
+    def parse(self, data):
+        information = data["data"]
+        destination = data["destination"]
+
+        rawLatitude = [self.extractNumber(c) for c in destination[0:6]]
+        lat = self.listToNumber(rawLatitude[0:2]) + self.listToNumber(rawLatitude[2:6]) / 6000
+        if ord(destination[3]) <= ord("9"):
+            lat *= -1
+
+        lon = information[1] - 28
+        if ord(destination[4]) >= ord("P"):
+            lon += 100
+        if 180 <= lon <= 189:
+            lon -= 80
+        if 190 <= lon <= 199:
+            lon -= 190
+
+        minutes = information[2] - 28
+        if minutes >= 60:
+            minutes -= 60
+
+        lon += minutes / 60 + (information[3] - 28) / 6000
+
+        if ord(destination[5]) >= ord("P"):
+            lon *= -1
+
+        speed = (information[4] - 28) * 10
+        dc28 = information[5] - 28
+        speed += int(dc28 / 10)
+        course = (dc28 % 10) * 100
+        course += information[6] - 28
+        if speed >= 800:
+            speed -= 800
+        if course >= 400:
+            course -= 400
+        # speed is in knots... convert to metric (km/h)
+        speed *= knotsToKilometers
+
+        comment = information[9:].decode(encoding, "replace").strip()
+        (comment, altitude) = self.extractAltitude(comment)
+
+        (comment, device) = self.extractDevice(comment)
+
+        # altitude might be inside the device string, so repeat and choose one
+        (comment, insideAltitude) = self.extractAltitude(comment)
+        altitude = next((a for a in [altitude, insideAltitude] if a is not None), None)
+
+        return {
+            "fix": information[0] == ord("`") or information[0] == 0x1C,
+            "lat": lat,
+            "lon": lon,
+            "comment": comment,
+            "altitude": altitude,
+            "speed": speed,
+            "course": course,
+            "device": device,
+            "type": "Mic-E",
+            "symbol": getSymbolData(chr(information[7]), chr(information[8])),
+        }

owrx/bands.py

@@ -0,0 +1,79 @@
+import json
+
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class Band(object):
+    def __init__(self, dict):
+        self.name = dict["name"]
+        self.lower_bound = dict["lower_bound"]
+        self.upper_bound = dict["upper_bound"]
+        self.frequencies = []
+        if "frequencies" in dict:
+            for (mode, freqs) in dict["frequencies"].items():
+                if not isinstance(freqs, list):
+                    freqs = [freqs]
+                for f in freqs:
+                    if not self.inBand(f):
+                        logger.warning(
+                            "Frequency for {mode} on {band} is not within band limits: {frequency}".format(
+                                mode=mode, frequency=f, band=self.name
+                            )
+                        )
+                    else:
+                        self.frequencies.append({"mode": mode, "frequency": f})
+
+    def inBand(self, freq):
+        return self.lower_bound <= freq <= self.upper_bound
+
+    def getName(self):
+        return self.name
+
+    def getDialFrequencies(self, range):
+        (low, hi) = range
+        return [e for e in self.frequencies if low <= e["frequency"] <= hi]
+
+
+class Bandplan(object):
+    sharedInstance = None
+
+    @staticmethod
+    def getSharedInstance():
+        if Bandplan.sharedInstance is None:
+            Bandplan.sharedInstance = Bandplan()
+        return Bandplan.sharedInstance
+
+    def __init__(self):
+        self.bands = self.loadBands()
+
+    def loadBands(self):
+        for file in ["/etc/openwebrx/bands.json", "bands.json"]:
+            try:
+                f = open(file, "r")
+                bands_json = json.load(f)
+                f.close()
+                return [Band(d) for d in bands_json]
+            except FileNotFoundError:
+                pass
+            except json.JSONDecodeError:
+                logger.exception("error while parsing bandplan file %s", file)
+                return []
+            except Exception:
+                logger.exception("error while processing bandplan from %s", file)
+                return []
+        return []
+
+    def findBands(self, freq):
+        return [band for band in self.bands if band.inBand(freq)]
+
+    def findBand(self, freq):
+        bands = self.findBands(freq)
+        if bands:
+            return bands[0]
+        else:
+            return None
+
+    def collectDialFrequencies(self, range):
+        return [e for b in self.bands for e in b.getDialFrequencies(range)]

owrx/bookmarks.py

@@ -0,0 +1,62 @@
+import json
+
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class Bookmark(object):
+    def __init__(self, j):
+        self.name = j["name"]
+        self.frequency = j["frequency"]
+        self.modulation = j["modulation"]
+
+    def getName(self):
+        return self.name
+
+    def getFrequency(self):
+        return self.frequency
+
+    def getModulation(self):
+        return self.modulation
+
+    def __dict__(self):
+        return {
+            "name": self.getName(),
+            "frequency": self.getFrequency(),
+            "modulation": self.getModulation(),
+        }
+
+
+class Bookmarks(object):
+    sharedInstance = None
+
+    @staticmethod
+    def getSharedInstance():
+        if Bookmarks.sharedInstance is None:
+            Bookmarks.sharedInstance = Bookmarks()
+        return Bookmarks.sharedInstance
+
+    def __init__(self):
+        self.bookmarks = self.loadBookmarks()
+
+    def loadBookmarks(self):
+        for file in ["/etc/openwebrx/bookmarks.json", "bookmarks.json"]:
+            try:
+                f = open(file, "r")
+                bookmarks_json = json.load(f)
+                f.close()
+                return [Bookmark(d) for d in bookmarks_json]
+            except FileNotFoundError:
+                pass
+            except json.JSONDecodeError:
+                logger.exception("error while parsing bookmarks file %s", file)
+                return []
+            except Exception:
+                logger.exception("error while processing bookmarks from %s", file)
+                return []
+        return []
+
+    def getBookmarks(self, range):
+        (lo, hi) = range
+        return [b for b in self.bookmarks if lo <= b.getFrequency() <= hi]

owrx/client.py

@@ -0,0 +1,50 @@
+from owrx.config import PropertyManager
+from owrx.metrics import Metrics, DirectMetric
+import threading
+
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class TooManyClientsException(Exception):
+    pass
+
+
+class ClientRegistry(object):
+    sharedInstance = None
+    creationLock = threading.Lock()
+
+    @staticmethod
+    def getSharedInstance():
+        with ClientRegistry.creationLock:
+            if ClientRegistry.sharedInstance is None:
+                ClientRegistry.sharedInstance = ClientRegistry()
+        return ClientRegistry.sharedInstance
+
+    def __init__(self):
+        self.clients = []
+        Metrics.getSharedInstance().addMetric("openwebrx.users", DirectMetric(self.clientCount))
+        super().__init__()
+
+    def broadcast(self):
+        n = self.clientCount()
+        for c in self.clients:
+            c.write_clients(n)
+
+    def addClient(self, client):
+        pm = PropertyManager.getSharedInstance()
+        if len(self.clients) >= pm["max_clients"]:
+            raise TooManyClientsException()
+        self.clients.append(client)
+        self.broadcast()
+
+    def clientCount(self):
+        return len(self.clients)
+
+    def removeClient(self, client):
+        try:
+            self.clients.remove(client)
+        except ValueError:
+            pass
+        self.broadcast()

owrx/command.py

@@ -0,0 +1,71 @@
+from abc import ABC, abstractmethod
+
+
+class CommandMapper(object):
+    def __init__(self, base=None, mappings=None, static=None):
+        self.base = base
+        self.mappings = {} if mappings is None else mappings
+        self.static = static
+
+    def map(self, values):
+        args = [self.mappings[k].map(v) for k, v in values.items() if k in self.mappings]
+        args = [a for a in args if a != ""]
+        options = " ".join(args)
+        command = "{0} {1}".format(self.base, options)
+        if self.static is not None:
+            command += " " + self.static
+        return command
+
+    def setMapping(self, key, mapping):
+        self.mappings[key] = mapping
+        return self
+
+    def setMappings(self, mappings):
+        for k, v in mappings.items():
+            self.setMapping(k, v)
+        return self
+
+    def setBase(self, base):
+        self.base = base
+        return self
+
+    def setStatic(self, static):
+        self.static = static
+        return self
+
+
+class CommandMapping(ABC):
+    @abstractmethod
+    def map(self, value):
+        pass
+
+
+class Flag(CommandMapping):
+    def __init__(self, flag):
+        self.flag = flag
+
+    def map(self, value):
+        if value is not None and value:
+            return self.flag
+        else:
+            return ""
+
+
+class Option(CommandMapping):
+    def __init__(self, option):
+        self.option = option
+        self.spacer = " "
+
+    def map(self, value):
+        if value is not None:
+            if isinstance(value, str) and " " in value:
+                template = '{option}{spacer}"{value}"'
+            else:
+                template = "{option}{spacer}{value}"
+            return template.format(option=self.option, spacer=self.spacer, value=value)
+        else:
+            return ""
+
+    def setSpacer(self, spacer):
+        self.spacer = spacer
+        return self

owrx/config.py

@@ -0,0 +1,149 @@
+import importlib.util
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class Subscription(object):
+    def __init__(self, subscriptee, subscriber):
+        self.subscriptee = subscriptee
+        self.subscriber = subscriber
+
+    def call(self, *args, **kwargs):
+        self.subscriber(*args, **kwargs)
+
+    def cancel(self):
+        self.subscriptee.unwire(self)
+
+
+class Property(object):
+    def __init__(self, value=None):
+        self.value = value
+        self.subscribers = []
+
+    def getValue(self):
+        return self.value
+
+    def setValue(self, value):
+        if self.value == value:
+            return self
+        self.value = value
+        for c in self.subscribers:
+            try:
+                c.call(self.value)
+            except Exception as e:
+                logger.exception(e)
+        return self
+
+    def wire(self, callback):
+        sub = Subscription(self, callback)
+        self.subscribers.append(sub)
+        if not self.value is None:
+            sub.call(self.value)
+        return sub
+
+    def unwire(self, sub):
+        try:
+            self.subscribers.remove(sub)
+        except ValueError:
+            # happens when already removed before
+            pass
+        return self
+
+
+class ConfigNotFoundException(Exception):
+    pass
+
+
+class PropertyManager(object):
+    sharedInstance = None
+
+    @staticmethod
+    def getSharedInstance():
+        if PropertyManager.sharedInstance is None:
+            PropertyManager.sharedInstance = PropertyManager()
+        return PropertyManager.sharedInstance
+
+    def collect(self, *props):
+        return PropertyManager(
+            {name: self.getProperty(name) if self.hasProperty(name) else Property() for name in props}
+        )
+
+    def __init__(self, properties=None):
+        self.properties = {}
+        self.subscribers = []
+        if properties is not None:
+            for (name, prop) in properties.items():
+                self.add(name, prop)
+
+    def add(self, name, prop):
+        self.properties[name] = prop
+
+        def fireCallbacks(value):
+            for c in self.subscribers:
+                try:
+                    c.call(name, value)
+                except Exception as e:
+                    logger.exception(e)
+
+        prop.wire(fireCallbacks)
+        return self
+
+    def __contains__(self, name):
+        return self.hasProperty(name)
+
+    def __getitem__(self, name):
+        return self.getPropertyValue(name)
+
+    def __setitem__(self, name, value):
+        if not self.hasProperty(name):
+            self.add(name, Property())
+        self.getProperty(name).setValue(value)
+
+    def __dict__(self):
+        return {k: v.getValue() for k, v in self.properties.items()}
+
+    def hasProperty(self, name):
+        return name in self.properties
+
+    def getProperty(self, name):
+        if not self.hasProperty(name):
+            self.add(name, Property())
+        return self.properties[name]
+
+    def getPropertyValue(self, name):
+        return self.getProperty(name).getValue()
+
+    def wire(self, callback):
+        sub = Subscription(self, callback)
+        self.subscribers.append(sub)
+        return sub
+
+    def unwire(self, sub):
+        try:
+            self.subscribers.remove(sub)
+        except ValueError:
+            # happens when already removed before
+            pass
+        return self
+
+    def defaults(self, other_pm):
+        for (key, p) in self.properties.items():
+            if p.getValue() is None:
+                p.setValue(other_pm[key])
+        return self
+
+    def loadConfig(self):
+        for file in ["/etc/openwebrx/config_webrx.py", "./config_webrx.py"]:
+            try:
+                spec = importlib.util.spec_from_file_location("config_webrx", file)
+                cfg = importlib.util.module_from_spec(spec)
+                spec.loader.exec_module(cfg)
+                for name, value in cfg.__dict__.items():
+                    if name.startswith("__"):
+                        continue
+                    self[name] = value
+                return self
+            except FileNotFoundError:
+                pass
+        raise ConfigNotFoundException("no usable config found! please make sure you have a valid configuration file!")

owrx/connection.py

@@ -0,0 +1,385 @@
+from owrx.config import PropertyManager
+from owrx.dsp import DspManager
+from owrx.cpu import CpuUsageThread
+from owrx.sdr import SdrService
+from owrx.source import SdrSource
+from owrx.client import ClientRegistry, TooManyClientsException
+from owrx.feature import FeatureDetector
+from owrx.version import openwebrx_version
+from owrx.bands import Bandplan
+from owrx.bookmarks import Bookmarks
+from owrx.map import Map
+from owrx.locator import Locator
+from multiprocessing import Queue
+from queue import Full
+import json
+import threading
+
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class Client(object):
+    def __init__(self, conn):
+        self.conn = conn
+        self.multiprocessingPipe = Queue(100)
+
+        def mp_passthru():
+            run = True
+            while run:
+                try:
+                    data = self.multiprocessingPipe.get()
+                    self.send(data)
+                except (EOFError, OSError):
+                    run = False
+
+        threading.Thread(target=mp_passthru).start()
+
+    def send(self, data):
+        self.conn.send(data)
+
+    def close(self):
+        self.conn.close()
+        self.multiprocessingPipe.close()
+
+    def mp_send(self, data):
+        try:
+            self.multiprocessingPipe.put(data, block=False)
+        except Full:
+            self.close()
+
+    def handleTextMessage(self, conn, message):
+        pass
+
+    def handleBinaryMessage(self, conn, data):
+        logger.error("unsupported binary message, discarding")
+
+    def handleClose(self):
+        self.close()
+
+
+class OpenWebRxReceiverClient(Client):
+    config_keys = [
+        "waterfall_colors",
+        "waterfall_min_level",
+        "waterfall_max_level",
+        "waterfall_auto_level_margin",
+        "samp_rate",
+        "fft_size",
+        "fft_fps",
+        "audio_compression",
+        "fft_compression",
+        "max_clients",
+        "start_mod",
+        "start_freq",
+        "center_freq",
+        "initial_squelch_level",
+        "profile_id",
+    ]
+
+    def __init__(self, conn):
+        super().__init__(conn)
+
+        self.dsp = None
+        self.sdr = None
+        self.configSub = None
+        self.connectionProperties = {}
+
+        try:
+            ClientRegistry.getSharedInstance().addClient(self)
+        except TooManyClientsException:
+            self.write_backoff_message("Too many clients")
+            self.close()
+            raise
+
+        pm = PropertyManager.getSharedInstance()
+
+        self.setSdr()
+
+        # send receiver info
+        receiver_keys = [
+            "receiver_name",
+            "receiver_location",
+            "receiver_asl",
+            "receiver_gps",
+            "photo_title",
+            "photo_desc",
+        ]
+        receiver_details = dict((key, pm.getPropertyValue(key)) for key in receiver_keys)
+        receiver_details["locator"] = Locator.fromCoordinates(receiver_details["receiver_gps"])
+        self.write_receiver_details(receiver_details)
+
+        self.__sendProfiles()
+
+        features = FeatureDetector().feature_availability()
+        self.write_features(features)
+
+        CpuUsageThread.getSharedInstance().add_client(self)
+
+    def __sendProfiles(self):
+        profiles = [
+            {"name": s.getName() + " " + p["name"], "id": sid + "|" + pid}
+            for (sid, s) in SdrService.getSources().items()
+            for (pid, p) in s.getProfiles().items()
+        ]
+        self.write_profiles(profiles)
+
+    def handleTextMessage(self, conn, message):
+        try:
+            message = json.loads(message)
+            if "type" in message:
+                if message["type"] == "dspcontrol":
+                    if "action" in message and message["action"] == "start":
+                        self.startDsp()
+
+                    if "params" in message:
+                        params = message["params"]
+                        self.setDspProperties(params)
+
+                elif message["type"] == "config":
+                    if "params" in message:
+                        self.setParams(message["params"])
+                elif message["type"] == "setsdr":
+                    if "params" in message:
+                        self.setSdr(message["params"]["sdr"])
+                elif message["type"] == "selectprofile":
+                    if "params" in message and "profile" in message["params"]:
+                        profile = message["params"]["profile"].split("|")
+                        self.setSdr(profile[0])
+                        self.sdr.activateProfile(profile[1])
+                elif message["type"] == "connectionproperties":
+                    if "params" in message:
+                        self.connectionProperties = message["params"]
+                        if self.dsp:
+                            self.setDspProperties(self.connectionProperties)
+
+            else:
+                logger.warning("received message without type: {0}".format(message))
+
+        except json.JSONDecodeError:
+            logger.warning("message is not json: {0}".format(message))
+
+    def setSdr(self, id=None):
+        while True:
+            next = None
+            if id is not None:
+                next = SdrService.getSource(id)
+            if next is None:
+                next = SdrService.getFirstSource()
+            if next is None:
+                # exit condition: no sdrs available
+                self.handleNoSdrsAvailable()
+                return
+
+            # exit condition: no change
+            if next == self.sdr:
+                return
+
+            self.stopDsp()
+
+            if self.configSub is not None:
+                self.configSub.cancel()
+                self.configSub = None
+
+            self.sdr = next
+
+            self.startDsp()
+
+            # keep trying until we find a suitable SDR
+            if self.sdr.getState() == SdrSource.STATE_FAILED:
+                self.write_log_message('SDR device "{0}" has failed, selecting new device'.format(self.sdr.getName()))
+            else:
+                break
+
+        # send initial config
+        self.setDspProperties(self.connectionProperties)
+
+        configProps = (
+            self.sdr.getProps()
+            .collect(*OpenWebRxReceiverClient.config_keys)
+            .defaults(PropertyManager.getSharedInstance())
+        )
+
+        def sendConfig(key, value):
+            config = dict((key, configProps[key]) for key in OpenWebRxReceiverClient.config_keys)
+            # TODO mathematical properties? hmmmm
+            config["start_offset_freq"] = configProps["start_freq"] - configProps["center_freq"]
+            # TODO this is a hack to support multiple sdrs
+            config["sdr_id"] = self.sdr.getId()
+            self.write_config(config)
+
+            cf = configProps["center_freq"]
+            srh = configProps["samp_rate"] / 2
+            frequencyRange = (cf - srh, cf + srh)
+            self.write_dial_frequendies(Bandplan.getSharedInstance().collectDialFrequencies(frequencyRange))
+            bookmarks = [b.__dict__() for b in Bookmarks.getSharedInstance().getBookmarks(frequencyRange)]
+            self.write_bookmarks(bookmarks)
+
+        self.configSub = configProps.wire(sendConfig)
+        sendConfig(None, None)
+        self.__sendProfiles()
+
+        self.sdr.addSpectrumClient(self)
+
+    def handleNoSdrsAvailable(self):
+        self.write_sdr_error("No SDR Devices available")
+
+    def startDsp(self):
+        if self.dsp is None and self.sdr is not None:
+            self.dsp = DspManager(self, self.sdr)
+            self.dsp.start()
+
+    def close(self):
+        self.stopDsp()
+        CpuUsageThread.getSharedInstance().remove_client(self)
+        ClientRegistry.getSharedInstance().removeClient(self)
+        if self.configSub is not None:
+            self.configSub.cancel()
+            self.configSub = None
+        super().close()
+
+    def stopDsp(self):
+        if self.dsp is not None:
+            self.dsp.stop()
+            self.dsp = None
+        if self.sdr is not None:
+            self.sdr.removeSpectrumClient(self)
+
+    def setParams(self, params):
+        # only the keys in the protected property manager can be overridden from the web
+        protected = (
+            self.sdr.getProps()
+            .collect("samp_rate", "center_freq", "rf_gain", "type")
+            .defaults(PropertyManager.getSharedInstance())
+        )
+        for key, value in params.items():
+            protected[key] = value
+
+    def setDspProperties(self, params):
+        for key, value in params.items():
+            self.dsp.setProperty(key, value)
+
+    def write_spectrum_data(self, data):
+        self.mp_send(bytes([0x01]) + data)
+
+    def write_dsp_data(self, data):
+        self.send(bytes([0x02]) + data)
+
+    def write_s_meter_level(self, level):
+        self.send({"type": "smeter", "value": level})
+
+    def write_cpu_usage(self, usage):
+        self.mp_send({"type": "cpuusage", "value": usage})
+
+    def write_clients(self, clients):
+        self.mp_send({"type": "clients", "value": clients})
+
+    def write_secondary_fft(self, data):
+        self.send(bytes([0x03]) + data)
+
+    def write_secondary_demod(self, data):
+        message = data.decode("ascii", "replace")
+        self.send({"type": "secondary_demod", "value": message})
+
+    def write_secondary_dsp_config(self, cfg):
+        self.send({"type": "secondary_config", "value": cfg})
+
+    def write_config(self, cfg):
+        self.send({"type": "config", "value": cfg})
+
+    def write_receiver_details(self, details):
+        self.send({"type": "receiver_details", "value": details})
+
+    def write_profiles(self, profiles):
+        self.send({"type": "profiles", "value": profiles})
+
+    def write_features(self, features):
+        self.send({"type": "features", "value": features})
+
+    def write_metadata(self, metadata):
+        self.send({"type": "metadata", "value": metadata})
+
+    def write_wsjt_message(self, message):
+        self.send({"type": "wsjt_message", "value": message})
+
+    def write_dial_frequendies(self, frequencies):
+        self.send({"type": "dial_frequencies", "value": frequencies})
+
+    def write_bookmarks(self, bookmarks):
+        self.send({"type": "bookmarks", "value": bookmarks})
+
+    def write_aprs_data(self, data):
+        self.send({"type": "aprs_data", "value": data})
+
+    def write_log_message(self, message):
+        self.send({"type": "log_message", "value": message})
+
+    def write_sdr_error(self, message):
+        self.send({"type": "sdr_error", "value": message})
+
+    def write_pocsag_data(self, data):
+        self.send({"type": "pocsag_data", "value": data})
+
+    def write_backoff_message(self, reason):
+        self.send({"type": "backoff", "reason": reason})
+
+
+class MapConnection(Client):
+    def __init__(self, conn):
+        super().__init__(conn)
+
+        pm = PropertyManager.getSharedInstance()
+        self.write_config(pm.collect("google_maps_api_key", "receiver_gps", "map_position_retention_time").__dict__())
+
+        Map.getSharedInstance().addClient(self)
+
+    def handleTextMessage(self, conn, message):
+        pass
+
+    def close(self):
+        Map.getSharedInstance().removeClient(self)
+        super().close()
+
+    def write_config(self, cfg):
+        self.send({"type": "config", "value": cfg})
+
+    def write_update(self, update):
+        self.mp_send({"type": "update", "value": update})
+
+
+class WebSocketMessageHandler(object):
+    def __init__(self):
+        self.handshake = None
+
+    def handleTextMessage(self, conn, message):
+        if message[:16] == "SERVER DE CLIENT":
+            meta = message[17:].split(" ")
+            self.handshake = {v[0]: "=".join(v[1:]) for v in map(lambda x: x.split("="), meta)}
+
+            conn.send("CLIENT DE SERVER server=openwebrx version={version}".format(version=openwebrx_version))
+            logger.debug("client connection intitialized")
+
+            if "type" in self.handshake:
+                if self.handshake["type"] == "receiver":
+                    client = OpenWebRxReceiverClient(conn)
+                if self.handshake["type"] == "map":
+                    client = MapConnection(conn)
+            # backwards compatibility
+            else:
+                client = OpenWebRxReceiverClient(conn)
+
+            # hand off all further communication to the correspondig connection
+            conn.setMessageHandler(client)
+
+            return
+
+        if not self.handshake:
+            logger.warning("not answering client request since handshake is not complete")
+            return
+
+    def handleBinaryMessage(self, conn, data):
+        pass
+
+    def handleClose(self):
+        pass

owrx/controllers.py

@@ -0,0 +1,168 @@
+import os
+import mimetypes
+import json
+import pkg_resources
+from datetime import datetime
+from string import Template
+from owrx.websocket import WebSocketConnection
+from owrx.config import PropertyManager
+from owrx.client import ClientRegistry
+from owrx.connection import WebSocketMessageHandler
+from owrx.version import openwebrx_version
+from owrx.feature import FeatureDetector
+from owrx.metrics import Metrics
+
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class Controller(object):
+    def __init__(self, handler, request):
+        self.handler = handler
+        self.request = request
+
+    def send_response(self, content, code=200, content_type="text/html", last_modified: datetime = None, max_age=None):
+        self.handler.send_response(code)
+        if content_type is not None:
+            self.handler.send_header("Content-Type", content_type)
+        if last_modified is not None:
+            self.handler.send_header("Last-Modified", last_modified.strftime("%a, %d %b %Y %H:%M:%S GMT"))
+        if max_age is not None:
+            self.handler.send_header("Cache-Control", "max-age: {0}".format(max_age))
+        self.handler.end_headers()
+        if type(content) == str:
+            content = content.encode()
+        self.handler.wfile.write(content)
+
+
+class StatusController(Controller):
+    def handle_request(self):
+        pm = PropertyManager.getSharedInstance()
+        # TODO keys that have been left out since they are no longer simple strings: sdr_hw, bands, antenna
+        vars = {
+            "status": "active",
+            "name": pm["receiver_name"],
+            "op_email": pm["receiver_admin"],
+            "users": ClientRegistry.getSharedInstance().clientCount(),
+            "users_max": pm["max_clients"],
+            "gps": pm["receiver_gps"],
+            "asl": pm["receiver_asl"],
+            "loc": pm["receiver_location"],
+            "sw_version": openwebrx_version,
+            "avatar_ctime": os.path.getctime("htdocs/gfx/openwebrx-avatar.png"),
+        }
+        self.send_response("\n".join(["{key}={value}".format(key=key, value=value) for key, value in vars.items()]))
+
+
+class AssetsController(Controller):
+    def getModified(self, file):
+        return None
+
+    def openFile(self, file):
+        pass
+
+    def serve_file(self, file, content_type=None):
+        try:
+            modified = self.getModified(file)
+
+            if modified is not None and "If-Modified-Since" in self.handler.headers:
+                client_modified = datetime.strptime(
+                    self.handler.headers["If-Modified-Since"], "%a, %d %b %Y %H:%M:%S %Z"
+                )
+                if modified <= client_modified:
+                    self.send_response("", code=304)
+                    return
+
+            f = self.openFile(file)
+            data = f.read()
+            f.close()
+
+            if content_type is None:
+                (content_type, encoding) = mimetypes.MimeTypes().guess_type(file)
+            self.send_response(data, content_type=content_type, last_modified=modified, max_age=3600)
+        except FileNotFoundError:
+            self.send_response("file not found", code=404)
+
+    def handle_request(self):
+        filename = self.request.matches.group(1)
+        self.serve_file(filename)
+
+
+class OwrxAssetsController(AssetsController):
+    def openFile(self, file):
+        return pkg_resources.resource_stream("htdocs", file)
+
+
+class AprsSymbolsController(AssetsController):
+    def __init__(self, handler, request):
+        pm = PropertyManager.getSharedInstance()
+        path = pm["aprs_symbols_path"]
+        if not path.endswith("/"):
+            path += "/"
+        self.path = path
+        super().__init__(handler, request)
+
+    def getFilePath(self, file):
+        return self.path + file
+
+    def getModified(self, file):
+        return datetime.fromtimestamp(os.path.getmtime(self.getFilePath(file)))
+
+    def openFile(self, file):
+        return open(self.getFilePath(file), "rb")
+
+
+class TemplateController(Controller):
+    def render_template(self, file, **vars):
+        file_content = pkg_resources.resource_string("htdocs", file).decode("utf-8")
+        template = Template(file_content)
+
+        return template.safe_substitute(**vars)
+
+    def serve_template(self, file, **vars):
+        self.send_response(self.render_template(file, **vars), content_type="text/html")
+
+    def default_variables(self):
+        return {}
+
+
+class WebpageController(TemplateController):
+    def template_variables(self):
+        header = self.render_template("include/header.include.html")
+        return {"header": header}
+
+
+class IndexController(WebpageController):
+    def handle_request(self):
+        self.serve_template("index.html", **self.template_variables())
+
+
+class MapController(WebpageController):
+    def handle_request(self):
+        # TODO check if we have a google maps api key first?
+        self.serve_template("map.html", **self.template_variables())
+
+
+class FeatureController(WebpageController):
+    def handle_request(self):
+        self.serve_template("features.html", **self.template_variables())
+
+
+class ApiController(Controller):
+    def handle_request(self):
+        data = json.dumps(FeatureDetector().feature_report())
+        self.send_response(data, content_type="application/json")
+
+
+class MetricsController(Controller):
+    def handle_request(self):
+        data = json.dumps(Metrics.getSharedInstance().getMetrics())
+        self.send_response(data, content_type="application/json")
+
+
+class WebSocketController(Controller):
+    def handle_request(self):
+        conn = WebSocketConnection(self.handler, WebSocketMessageHandler())
+        # enter read loop
+        conn.handle()

owrx/cpu.py

@@ -0,0 +1,73 @@
+import threading
+
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class CpuUsageThread(threading.Thread):
+    sharedInstance = None
+
+    @staticmethod
+    def getSharedInstance():
+        if CpuUsageThread.sharedInstance is None:
+            CpuUsageThread.sharedInstance = CpuUsageThread()
+        return CpuUsageThread.sharedInstance
+
+    def __init__(self):
+        self.clients = []
+        self.doRun = True
+        self.last_worktime = 0
+        self.last_idletime = 0
+        self.endEvent = threading.Event()
+        super().__init__()
+
+    def run(self):
+        while self.doRun:
+            try:
+                cpu_usage = self.get_cpu_usage()
+            except:
+                cpu_usage = 0
+            for c in self.clients:
+                c.write_cpu_usage(cpu_usage)
+            self.endEvent.wait(timeout=3)
+        logger.debug("cpu usage thread shut down")
+
+    def get_cpu_usage(self):
+        try:
+            f = open("/proc/stat", "r")
+        except:
+            return 0  # Workaround, possibly we're on a Mac
+        line = ""
+        while not "cpu " in line:
+            line = f.readline()
+        f.close()
+        spl = line.split(" ")
+        worktime = int(spl[2]) + int(spl[3]) + int(spl[4])
+        idletime = int(spl[5])
+        dworktime = worktime - self.last_worktime
+        didletime = idletime - self.last_idletime
+        rate = float(dworktime) / (didletime + dworktime)
+        self.last_worktime = worktime
+        self.last_idletime = idletime
+        if self.last_worktime == 0:
+            return 0
+        return rate
+
+    def add_client(self, c):
+        self.clients.append(c)
+        if not self.is_alive():
+            self.start()
+
+    def remove_client(self, c):
+        try:
+            self.clients.remove(c)
+        except ValueError:
+            pass
+        if not self.clients:
+            self.shutdown()
+
+    def shutdown(self):
+        CpuUsageThread.sharedInstance = None
+        self.doRun = False
+        self.endEvent.set()

owrx/dsp.py

@@ -0,0 +1,154 @@
+from owrx.config import PropertyManager
+from owrx.meta import MetaParser
+from owrx.wsjt import WsjtParser
+from owrx.aprs import AprsParser
+from owrx.pocsag import PocsagParser
+from owrx.source import SdrSource
+from csdr import csdr
+import threading
+
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class DspManager(csdr.output):
+    def __init__(self, handler, sdrSource):
+        self.handler = handler
+        self.sdrSource = sdrSource
+        self.parsers = {
+            "meta": MetaParser(self.handler),
+            "wsjt_demod": WsjtParser(self.handler),
+            "packet_demod": AprsParser(self.handler),
+            "pocsag_demod": PocsagParser(self.handler),
+        }
+
+        self.localProps = (
+            self.sdrSource.getProps()
+            .collect(
+                "audio_compression",
+                "fft_compression",
+                "digimodes_fft_size",
+                "csdr_dynamic_bufsize",
+                "csdr_print_bufsizes",
+                "csdr_through",
+                "digimodes_enable",
+                "samp_rate",
+                "digital_voice_unvoiced_quality",
+                "dmr_filter",
+                "temporary_directory",
+                "center_freq",
+            )
+            .defaults(PropertyManager.getSharedInstance())
+        )
+
+        self.dsp = csdr.dsp(self)
+        self.dsp.nc_port = self.sdrSource.getPort()
+
+        def set_low_cut(cut):
+            bpf = self.dsp.get_bpf()
+            bpf[0] = cut
+            self.dsp.set_bpf(*bpf)
+
+        def set_high_cut(cut):
+            bpf = self.dsp.get_bpf()
+            bpf[1] = cut
+            self.dsp.set_bpf(*bpf)
+
+        def set_dial_freq(key, value):
+            freq = self.localProps["center_freq"] + self.localProps["offset_freq"]
+            for parser in self.parsers.values():
+                parser.setDialFrequency(freq)
+
+        self.subscriptions = [
+            self.localProps.getProperty("audio_compression").wire(self.dsp.set_audio_compression),
+            self.localProps.getProperty("fft_compression").wire(self.dsp.set_fft_compression),
+            self.localProps.getProperty("digimodes_fft_size").wire(self.dsp.set_secondary_fft_size),
+            self.localProps.getProperty("samp_rate").wire(self.dsp.set_samp_rate),
+            self.localProps.getProperty("output_rate").wire(self.dsp.set_output_rate),
+            self.localProps.getProperty("offset_freq").wire(self.dsp.set_offset_freq),
+            self.localProps.getProperty("squelch_level").wire(self.dsp.set_squelch_level),
+            self.localProps.getProperty("low_cut").wire(set_low_cut),
+            self.localProps.getProperty("high_cut").wire(set_high_cut),
+            self.localProps.getProperty("mod").wire(self.dsp.set_demodulator),
+            self.localProps.getProperty("digital_voice_unvoiced_quality").wire(self.dsp.set_unvoiced_quality),
+            self.localProps.getProperty("dmr_filter").wire(self.dsp.set_dmr_filter),
+            self.localProps.getProperty("temporary_directory").wire(self.dsp.set_temporary_directory),
+            self.localProps.collect("center_freq", "offset_freq").wire(set_dial_freq),
+        ]
+
+        self.dsp.set_offset_freq(0)
+        self.dsp.set_bpf(-4000, 4000)
+        self.dsp.csdr_dynamic_bufsize = self.localProps["csdr_dynamic_bufsize"]
+        self.dsp.csdr_print_bufsizes = self.localProps["csdr_print_bufsizes"]
+        self.dsp.csdr_through = self.localProps["csdr_through"]
+
+        if self.localProps["digimodes_enable"]:
+
+            def set_secondary_mod(mod):
+                if mod == False:
+                    mod = None
+                self.dsp.set_secondary_demodulator(mod)
+                if mod is not None:
+                    self.handler.write_secondary_dsp_config(
+                        {
+                            "secondary_fft_size": self.localProps["digimodes_fft_size"],
+                            "if_samp_rate": self.dsp.if_samp_rate(),
+                            "secondary_bw": self.dsp.secondary_bw(),
+                        }
+                    )
+
+            self.subscriptions += [
+                self.localProps.getProperty("secondary_mod").wire(set_secondary_mod),
+                self.localProps.getProperty("secondary_offset_freq").wire(self.dsp.set_secondary_offset_freq),
+            ]
+
+        self.sdrSource.addClient(self)
+
+        super().__init__()
+
+    def start(self):
+        if self.sdrSource.isAvailable():
+            self.dsp.start()
+
+    def receive_output(self, t, read_fn):
+        logger.debug("adding new output of type %s", t)
+        writers = {
+            "audio": self.handler.write_dsp_data,
+            "smeter": self.handler.write_s_meter_level,
+            "secondary_fft": self.handler.write_secondary_fft,
+            "secondary_demod": self.handler.write_secondary_demod,
+        }
+        for demod, parser in self.parsers.items():
+            writers[demod] = parser.parse
+
+        write = writers[t]
+
+        threading.Thread(target=self.pump(read_fn, write)).start()
+
+    def stop(self):
+        self.dsp.stop()
+        self.sdrSource.removeClient(self)
+        for sub in self.subscriptions:
+            sub.cancel()
+        self.subscriptions = []
+
+    def setProperty(self, prop, value):
+        self.localProps.getProperty(prop).setValue(value)
+
+    def getClientClass(self):
+        return SdrSource.CLIENT_USER
+
+    def onStateChange(self, state):
+        if state == SdrSource.STATE_RUNNING:
+            logger.debug("received STATE_RUNNING, attempting DspSource restart")
+            self.dsp.start()
+        elif state == SdrSource.STATE_STOPPING:
+            logger.debug("received STATE_STOPPING, shutting down DspSource")
+            self.dsp.stop()
+        elif state == SdrSource.STATE_FAILED:
+            logger.debug("received STATE_FAILED, shutting down DspSource")
+            self.dsp.stop()
+
+    def onBusyStateChange(self, state):
+        pass

owrx/feature.py

@@ -0,0 +1,336 @@
+import subprocess
+from functools import reduce
+from operator import and_, or_
+import re
+from distutils.version import LooseVersion
+import inspect
+from owrx.config import PropertyManager
+import shlex
+
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class UnknownFeatureException(Exception):
+    pass
+
+
+class FeatureDetector(object):
+    features = {
+        # core features; we won't start without these
+        "core": ["csdr", "nmux", "nc"],
+        # different types of sdrs and their requirements
+        "rtl_sdr": ["rtl_connector"],
+        "rtl_sdr_soapy": ["soapy_connector", "soapy_rtl_sdr"],
+        "sdrplay": ["soapy_connector", "soapy_sdrplay"],
+        "hackrf": ["hackrf_transfer"],
+        "airspy": ["soapy_connector", "soapy_airspy"],
+        "airspyhf": ["soapy_connector", "soapy_airspyhf"],
+        "lime_sdr": ["soapy_connector", "soapy_lime_sdr"],
+        "fifi_sdr": ["alsa"],
+        "pluto_sdr": ["soapy_connector", "soapy_pluto_sdr"],
+        # optional features and their requirements
+        "digital_voice_digiham": ["digiham", "sox"],
+        "digital_voice_dsd": ["dsd", "sox", "digiham"],
+        "wsjt-x": ["wsjtx", "sox"],
+        "packet": ["direwolf", "sox"],
+        "pocsag": ["digiham", "sox"],
+    }
+
+    def feature_availability(self):
+        return {name: self.is_available(name) for name in FeatureDetector.features}
+
+    def feature_report(self):
+        def requirement_details(name):
+            available = self.has_requirement(name)
+            return {
+                "available": available,
+                # as of now, features are always enabled as soon as they are available. this may change in the future.
+                "enabled": available,
+                "description": self.get_requirement_description(name),
+            }
+
+        def feature_details(name):
+            return {
+                "description": "",
+                "available": self.is_available(name),
+                "requirements": {name: requirement_details(name) for name in self.get_requirements(name)},
+            }
+
+        return {name: feature_details(name) for name in FeatureDetector.features}
+
+    def is_available(self, feature):
+        return self.has_requirements(self.get_requirements(feature))
+
+    def get_requirements(self, feature):
+        try:
+            return FeatureDetector.features[feature]
+        except KeyError:
+            raise UnknownFeatureException('Feature "{0}" is not known.'.format(feature))
+
+    def has_requirements(self, requirements):
+        passed = True
+        for requirement in requirements:
+            passed = passed and self.has_requirement(requirement)
+        return passed
+
+    def _get_requirement_method(self, requirement):
+        methodname = "has_" + requirement
+        if hasattr(self, methodname) and callable(getattr(self, methodname)):
+            return getattr(self, methodname)
+        return None
+
+    def has_requirement(self, requirement):
+        method = self._get_requirement_method(requirement)
+        if method is not None:
+            return method()
+        else:
+            logger.error("detection of requirement {0} not implement. please fix in code!".format(requirement))
+        return False
+
+    def get_requirement_description(self, requirement):
+        return inspect.getdoc(self._get_requirement_method(requirement))
+
+    def command_is_runnable(self, command):
+        tmp_dir = PropertyManager.getSharedInstance()["temporary_directory"]
+        cmd = shlex.split(command)
+        try:
+            process = subprocess.Popen(cmd, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, cwd=tmp_dir)
+            return process.wait() != 32512
+        except FileNotFoundError:
+            return False
+
+    def has_csdr(self):
+        """
+        OpenWebRX uses the demodulator and pipeline tools provided by the csdr project. Please check out [the project
+        page on github](https://github.com/simonyiszk/csdr) for further details and installation instructions.
+        """
+        return self.command_is_runnable("csdr")
+
+    def has_nmux(self):
+        """
+        Nmux is another tool provided by the csdr project. It is used for internal multiplexing of the IQ data streams.
+        If you're missing nmux even though you have csdr installed, please update your csdr version.
+        """
+        return self.command_is_runnable("nmux --help")
+
+    def has_nc(self):
+        """
+        Nc is the client used to connect to the nmux multiplexer. It is provided by either the BSD netcat (recommended
+        for better performance) or GNU netcat packages. Please check your distribution package manager for options.
+        """
+        return self.command_is_runnable("nc --help")
+
+    def has_rtl_sdr(self):
+        """
+        The rtl-sdr command is required to read I/Q data from an RTL SDR USB-Stick. It is available in most
+        distribution package managers.
+        """
+        return self.command_is_runnable("rtl_sdr --help")
+
+    def has_hackrf_transfer(self):
+        """
+        To use a HackRF, compile the HackRF host tools from its "stdout" branch:
+        ```
+         git clone https://github.com/mossmann/hackrf/
+         cd hackrf
+         git fetch
+         git checkout origin/stdout
+         cd host
+         mkdir build
+         cd build
+         cmake .. -DINSTALL_UDEV_RULES=ON
+         make
+         sudo make install
+        ```
+        """
+        # TODO i don't have a hackrf, so somebody doublecheck this.
+        # TODO also check if it has the stdout feature
+        return self.command_is_runnable("hackrf_transfer --help")
+
+    def has_digiham(self):
+        """
+        To use digital voice modes, the digiham package is required. You can find the package and installation
+        instructions [here](https://github.com/jketterl/digiham).
+
+        Please note: there is close interaction between digiham and openwebrx, so older versions will probably not work.
+        If you have an older verison of digiham installed, please update it along with openwebrx.
+        As of now, we require version 0.3 of digiham.
+        """
+        required_version = LooseVersion("0.3")
+
+        digiham_version_regex = re.compile("^digiham version (.*)$")
+
+        def check_digiham_version(command):
+            try:
+                process = subprocess.Popen([command, "--version"], stdout=subprocess.PIPE)
+                matches = digiham_version_regex.match(process.stdout.readline().decode())
+                if matches is None:
+                    return False
+                version = LooseVersion(matches.group(1))
+                process.wait(1)
+                return version >= required_version
+            except FileNotFoundError:
+                return False
+
+        return reduce(
+            and_,
+            map(
+                check_digiham_version,
+                [
+                    "rrc_filter",
+                    "ysf_decoder",
+                    "dmr_decoder",
+                    "mbe_synthesizer",
+                    "gfsk_demodulator",
+                    "digitalvoice_filter",
+                    "fsk_demodulator",
+                    "pocsag_decoder",
+                ],
+            ),
+            True,
+        )
+
+    def _check_connector(self, command):
+        required_version = LooseVersion("0.1")
+
+        owrx_connector_version_regex = re.compile("^owrx-connector version (.*)$")
+
+        try:
+            process = subprocess.Popen([command, "--version"], stdout=subprocess.PIPE)
+            matches = owrx_connector_version_regex.match(process.stdout.readline().decode())
+            if matches is None:
+                return False
+            version = LooseVersion(matches.group(1))
+            process.wait(1)
+            return version >= required_version
+        except FileNotFoundError:
+            return False
+
+    def has_rtl_connector(self):
+        """
+        The owrx_connector package offers direct interfacing between your hardware and openwebrx. It allows quicker
+        frequency switching, uses less CPU and can even provide more stability in some cases.
+
+        You can get it [here](https://github.com/jketterl/owrx_connector).
+        """
+        return self._check_connector("rtl_connector")
+
+    def has_soapy_connector(self):
+        """
+        The owrx_connector package offers direct interfacing between your hardware and openwebrx. It allows quicker
+        frequency switching, uses less CPU and can even provide more stability in some cases.
+
+        You can get it [here](https://github.com/jketterl/owrx_connector).
+        """
+        return self._check_connector("soapy_connector")
+
+    def _has_soapy_driver(self, driver):
+        try:
+            process = subprocess.Popen(["SoapySDRUtil", "--info"], stdout=subprocess.PIPE, stderr=subprocess.DEVNULL)
+            driverRegex = re.compile("^Module found: .*lib(.*)Support.so")
+
+            def matchLine(line):
+                matches = driverRegex.match(line.decode())
+                return matches is not None and matches.group(1) == driver
+
+            lines = [matchLine(line) for line in process.stdout]
+            return reduce(or_, lines, False)
+        except FileNotFoundError:
+            return False
+
+    def has_soapy_rtl_sdr(self):
+        """
+        The SoapySDR module for rtl-sdr devices can be used as an alternative to the rtl_connector. It provides
+        additional support for the direct sampling mod.
+
+        You can get it [here](https://github.com/pothosware/SoapyRTLSDR/wiki).
+        """
+        return self._has_soapy_driver("rtlsdr")
+
+    def has_soapy_sdrplay(self):
+        """
+        The SoapySDR module for sdrplay devices is required for interfacing with SDRPlay devices (RSP1*, RSP2*, RSPDuo)
+
+        You can get it [here](https://github.com/pothosware/SoapySDRPlay/wiki).
+        """
+        return self._has_soapy_driver("sdrPlay")
+
+    def has_soapy_airspy(self):
+        """
+        The SoapySDR module for airspy devices is required for interfacing with Airspy devices (Airspy R2, Airspy Mini).
+
+        You can get it [here](https://github.com/pothosware/SoapyAirspy/wiki).
+        """
+        return self._has_soapy_driver("airspy")
+
+    def has_soapy_airspyhf(self):
+        """
+        The SoapySDR module for airspyhf devices is required for interfacing with Airspy HF devices (Airspy HF+,
+        Airspy HF discovery).
+
+        You can get it [here](https://github.com/pothosware/SoapyAirspyHF/wiki).
+        """
+        return self._has_soapy_driver("airspyhf")
+
+    def has_soapy_lime_sdr(self):
+        """
+        The Lime Suite installs - amongst others - a Soapy driver for the LimeSDR device series.
+
+        You can get it [here](https://github.com/myriadrf/LimeSuite).
+        """
+        return self._has_soapy_driver("LMS7")
+
+    def has_soapy_pluto_sdr(self):
+        """
+        The SoapySDR module for PlutoSDR devices is required for interfacing with PlutoSDR devices.
+
+        You can get it [here](https://github.com/photosware/SoapyPlutoSDR).
+        """
+        return self._has_soapy_driver("PlutoSDR")
+
+    def has_dsd(self):
+        """
+        The digital voice modes NXDN and D-Star can be decoded by the dsd project. Please note that you need the version
+        modified by F4EXB that provides stdin/stdout support. You can find it [here](https://github.com/f4exb/dsd).
+        """
+        return self.command_is_runnable("dsd")
+
+    def has_sox(self):
+        """
+        The sox audio library is used to convert between the typical 8 kHz audio sampling rate used by digital modes and
+        the audio sampling rate requested by the client.
+
+        It is available for most distributions through the respective package manager.
+        """
+        return self.command_is_runnable("sox")
+
+    def has_direwolf(self):
+        """
+        OpenWebRX uses the [direwolf](https://github.com/wb2osz/direwolf) software modem to decode Packet Radio and
+        report data back to APRS-IS. Direwolf is available from the package manager on many distributions, or you can
+        compile it from source.
+        """
+        return self.command_is_runnable("direwolf --help")
+
+    def has_airspy_rx(self):
+        """
+        In order to use an Airspy Receiver, you need to install the airspy_rx receiver software.
+        """
+        return self.command_is_runnable("airspy_rx --help")
+
+    def has_wsjtx(self):
+        """
+        To decode FT8 and other digimodes, you need to install the WSJT-X software suite. Please check the
+        [WSJT-X homepage](https://physics.princeton.edu/pulsar/k1jt/wsjtx.html) for ready-made packages or instructions
+        on how to build from source.
+        """
+        return reduce(and_, map(self.command_is_runnable, ["jt9", "wsprd"]), True)
+
+    def has_alsa(self):
+        """
+        Some SDR receivers are identifying themselves as a soundcard. In order to read their data, OpenWebRX relies
+        on the Alsa library. It is available as a package for most Linux distributions.
+        """
+        return self.command_is_runnable("arecord --help")