backported max_clients

backported bugfixes
2015-05-21 21:13:30 +02:00 · 2015-05-21 21:09:35 +02:00 · 2015-05-16 18:09:37 +02:00
122 changed files with 3579 additions and 25585 deletions
--- a/.gitignore
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 *.pyc
 *.swp
 tags
 .idea
--- a/CONTRIBUTING.md
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 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
--- a/5
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 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>
--- a/ICLA.txt
+++ b/ICLA.txt
@ -1,128 +0,0 @@
     Individual Contributor License Agreement ("Agreement")
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--- a/README.md
+++ b/README.md
@ -1,130 +1,46 @@
 OpenWebRX
 =========
 [: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 is a multi-user SDR receiver software with a web interface.
-![OpenWebRX](http://blog.sdr.hu/images/openwebrx/screenshot.png)
+![OpenWebRX](/screenshot.png?raw=true)
 It has the following features:
- [csdr](https://github.com/simonyiszk/csdr) based demodulators (AM/FM/SSB/CW/BPSK31),
+- <a href="https://github.com/simonyiszk/csdr">libcsdr</a> based demodulators (AM/FM/SSB),
 - filter passband can be set from GUI,
- it extensively uses HTML5 features like WebSocket, Web Audio API, and Canvas
+- waterfall display can be shifted back in time,
- it works in Google Chrome, Chromium and Mozilla Firefox
+- it extensively uses HTML5 features like WebSocket, Web Audio API, and &lt;canvas&gt;.
- currently supports RTL-SDR, HackRF, SDRplay, AirSpy
+- it works in Google Chrome, Chromium (above version 37) and Mozilla Firefox (above version 28),
- Multiple SDR devices can be used simultaneously
+- currently only supports RTL-SDR, but other SDR hardware may be easily added.
 - [digiham](https://github.com/jketterl/digiham) based demodularors (DMR, YSF)
 - [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)
 **News (2019-09-29 by DD5FJK)**
 - 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.
 **News (2019-09-25 by DD5JFK)**
 - 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.
 **News (2019-09-13 by DD5JFK)**
 - 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.
 **News (2019-07-21 by DD5JFK)**
 - 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
 **News (2019-07-13 by DD5JFK)**
 - 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)
 **News (2019-06-30 by DD5JFK)**
 - 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!
 > When upgrading OpenWebRX, please make sure that you also upgrade *csdr* and *digiham*!
 ## 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)
 ## Setup
-### Raspberry Pi SD Card Images
+OpenWebRX currently requires Linux and python 2.7 to run. 
 Probably the quickest way to get started is to download the [latest Raspberry Pi SD Card Image](https://s3.eu-central-1.amazonaws.com/de.dd5jfk.openwebrx/2019-09-29-OpenWebRX-full.zip). It contains all the depencencies out of the box, and should work on all Raspberries up to the 3B+.
 This is based off the Raspbian Lite distribution, so [their installation instructions](https://www.raspberrypi.org/documentation/installation/installing-images/) apply.
 Please note: I have not updated this to include the Raspberry Pi 4 yet. (It seems to be impossible to build Rasbpian Buster images on x86 hardware right now. Stay tuned!)
 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 http://openwebrx:8073/ 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 to run. 
 First you will need to install the dependencies:
- [csdr](https://github.com/simonyiszk/csdr)
+- <a href="https://github.com/simonyiszk/csdr">libcsdr</a>
- [rtl-sdr](http://sdr.osmocom.org/trac/wiki/rtl-sdr)
+- <a href="http://sdr.osmocom.org/trac/wiki/rtl-sdr">rtl-sdr</a>
 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)
 After cloning this repository and connecting an RTL-SDR dongle to your computer, you can run the server:
-	./openwebrx.py
+	python 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):
- ports 4950 to 4960 for the multi-user I/Q servers.
+- port 8888 for the I/Q source,
 - 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:  
+Actually, if you do something cool with OpenWebRX (or just have a problem), please drop me a mail:  
 *Andras Retzler, HA7ILM &lt;randras@sdr.hu&gt;*
 I would like to maintain a list of online amateur radio receivers on <a href="http://openwebrx.org/">openwebrx.org</a>.
 ## Usage tips
 You can zoom the waterfall display by the mouse wheel. You can also drag the waterfall to pan across it.
@ -133,14 +49,16 @@ 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
+## Configuration 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>.
+If you want to run OpenWebRX on a remote server instead of localhost, do not forget to set *server_hostname* in `config_webrx.py`, or you may get a WebSocket error.
-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.
+DSP CPU usage can be fine-tuned in `plugins/dsp/csdr/plugin.py`: you can set transition bandwidths higher (thus degrade filter performance by decreasing the length of the kernel, but also decrease CPU usage), and also set `fft_size` lower.
-## Licensing
+If you constantly get *audio overrun* errors, you may change `audio_buffer_maximal_length_sec` in `openwebrx.js` from the default 1.7 to 3.
-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>).
+If you want a chat-box to the top of the page, <a href="https://gist.github.com/ha7ilm/15c4c5e4c80cef9b3144">here is a snippet</a> for you to include in `config_webrx.py`.
-OpenWebRX is also available under a commercial license on request. Please contact me at the address *&lt;randras@sdr.hu&gt;* for licensing options. 
+## Todo
 Currently, clients use up a lot of bandwidth. This will be improved later.
--- a/bands.json
+++ b/bands.json
@ -1,190 +0,0 @@
 [
  {
    "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
  },
  {
    "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
  }
 ]
--- a/bookmarks.json
+++ b/bookmarks.json
@ -1,222 +0,0 @@
 [
  {
    "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": "Pocsag",
    "frequency": 439987500,
    "modulation": "nfm"
  },
  {
    "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"
  }
 ]
--- a/build.sh
+++ b/build.sh
@ -1,22 +0,0 @@
 #!/bin/bash
 set -euxo pipefail
 ARCH=$(uname -m)
 case $ARCH in
  x86_64)
    BASE_IMAGE=alpine
    ;;
  armv*)
    BASE_IMAGE=arm32v6/alpine
 esac
 TAGS=$ARCH
 docker build --build-arg BASE_IMAGE=$BASE_IMAGE -t openwebrx-base:$ARCH -f docker/Dockerfiles/Dockerfile-base .
 docker build --build-arg ARCH=$ARCH -t jketterl/openwebrx-rtlsdr:$ARCH -f docker/Dockerfiles/Dockerfile-rtlsdr .
 docker build --build-arg ARCH=$ARCH -t openwebrx-soapysdr-base:$ARCH -f docker/Dockerfiles/Dockerfile-soapysdr .
 docker build --build-arg ARCH=$ARCH -t jketterl/openwebrx-sdrplay:$ARCH -f docker/Dockerfiles/Dockerfile-sdrplay .
 docker build --build-arg ARCH=$ARCH -t jketterl/openwebrx-hackrf:$ARCH -f docker/Dockerfiles/Dockerfile-hackrf .
 docker build --build-arg ARCH=$ARCH -t jketterl/openwebrx-airspy:$ARCH -f docker/Dockerfiles/Dockerfile-airspy .
 docker build --build-arg ARCH=$ARCH -t jketterl/openwebrx-full:$ARCH -t jketterl/openwebrx:$ARCH -f docker/Dockerfiles/Dockerfile-full .
--- a/config_rtl.py
+++ b/config_rtl.py
@ -0,0 +1,87 @@
 '''
 This file is part of RTL Multi-User Server, 
 	that makes multi-user access to your DVB-T dongle used as an SDR.
 Copyright (c) 2013-2014 by Andras Retzler <randras@sdr.hu>
 RTL Multi-User Server is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.
 RTL Multi-User Server 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 General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with RTL Multi-User Server.  If not, see <http://www.gnu.org/licenses/>.
 '''
 my_ip='127.0.0.1' # leave blank for listening on all interfaces
 my_listening_port = 4951 
 rtl_tcp_host,rtl_tcp_port='localhost',8888
 send_first=""
 #send_first=chr(9)+chr(0)+chr(0)+chr(0)+chr(1) # set direct sampling
 setuid_on_start = 0					# we normally start with root privileges and setuid() to another user
 uid = 999 							# determine by issuing: $ id -u username
 ignore_clients_without_commands = 1 # we won't serve data to telnet sessions and things like that
 									# we'll start to serve data after getting the first valid command 
 freq_allowed_ranges = [[0,2200000000]]
 client_cant_set_until=0		
 first_client_can_set=True	# openwebrx - spectrum thread will set things on start # no good, clients set parameters and things
 buffer_size=25000000		# per client
 log_file_path = "/dev/null" # Might be set to /dev/null to turn off logging
 '''
 Allow any host to connect:
 	use_ip_access_control=0
 Allow from specific ranges:
 	use_ip_access_control=1
 	order_allow_deny=0 # deny and then allow
 	denied_ip_ranges=() # deny from all
 	allowed_ip_ranges=('192.168.','44.','127.0.0.1') # allow only from ...
 Deny from specific ranges:
 	use_ip_access_control=1
 	order_allow_deny=0 # allow and then deny
 	allowed_ip_ranges=() # allow from all
 	denied_ip_ranges=('192.168.') # deny any hosts from ...
 '''
 use_ip_access_control=1 #You may want to open up the I/Q server to the public, then set this to zero.
 order_allow_deny=0
 denied_ip_ranges=() # deny from all
 allowed_ip_ranges=('127.0.0.1') # allow only local connections (from openwebrx). 
 allow_gain_set=1
 use_dsp_command=False # you can process raw I/Q data with a custom command that starts a process that we can pipe the data into, and also pipe out of.
 debug_dsp_command=False # show sample rate before and after the dsp command
 dsp_command=""
 '''
 Example DSP commands:
  * Compress I/Q data with FLAC:
    flac --force-raw-format --channels 2 --sample-rate=250000 --sign=unsigned --bps=8 --endian=little -o - -
  * Decompress FLAC-coded I/Q data:
    flac --force-raw-format --decode --endian=little --sign=unsigned - -
 '''
 watchdog_interval=0
 reconnect_interval=10 
 '''
 If there's no input I/Q data after N seconds, input will be filled with zero samples, 
 so that GNU Radio won't fail in openwebrx. It may reconnect rtl_tcp_tread. 
 If watchdog_interval is 0, then watchdog thread is not started. 
 '''
 cache_full_behaviour=2
 '''
 	0 = drop samples
 	1 = close client
 	2 = openwebrx: don't care about that client until it wants samples again (gr-osmosdr bug workaround)
 '''
--- a/config_webrx.py
+++ b/config_webrx.py
@ -1,51 +1,43 @@
-# -*- coding: utf-8 -*-
+# -*- coding: utf-8 -*- 
 """
 config_webrx: configuration options for OpenWebRX
-    This file is part of OpenWebRX,
+OpenWebRX (c) Copyright 2013-2014 Andras Retzler <randras@sdr.hu>
    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
+This file is part of OpenWebRX.
    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,
+    OpenWebRX is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    OpenWebRX 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.
+    GNU General Public License for more details.
-    You should have received a copy of the GNU Affero General Public License
+    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+    along with OpenWebRX.  If not, see <http://www.gnu.org/licenses/>.
    ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
    In addition, as a special exception, the copyright holders
    state that config_rtl.py and config_webrx.py are not part of the
    Corresponding Source defined in GNU AGPL version 3 section 1.
    (It means that you do not have to redistribute config_rtl.py and
    config_webrx.py if you make any changes to these two configuration files,
    and use them for running your web service with 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
-# NOTE: you can find additional information about configuring OpenWebRX in the Wiki:
+#Web GUI configuration
-#       https://github.com/simonyiszk/openwebrx/wiki
+receiver_name="[Callsign]"
-
+receiver_location="Budapest, Hungary"
-# ==== Server settings ====
+receiver_qra="JN97ML"
-web_port = 8073
+receiver_asl=182
-max_clients = 20
+receiver_ant="Longwire"
-
+receiver_device="RTL-SDR"
-# ==== Web GUI configuration ====
+receiver_admin="localhost@localhost"
-receiver_name = "[Callsign]"
+receiver_gps=(47.000000,19.000000)
-receiver_location = "Budapest, Hungary"
+photo_height=350
-receiver_asl = 200
+photo_title="Panorama of Budapest from Schönherz Zoltán Dormitory"
-receiver_admin = "example@example.com"
+photo_desc="""
 receiver_gps = (47.000000, 19.000000)
 photo_title = "Panorama of Budapest from Schönherz Zoltán Dormitory"
 photo_desc = """
 You can add your own background photo and receiver information.<br />
 Receiver is operated by: <a href="mailto:%[RX_ADMIN]">%[RX_ADMIN]</a><br/>
 Device: %[RX_DEVICE]<br />
@ -53,227 +45,16 @@ Antenna: %[RX_ANT]<br />
 Website: <a href="http://localhost" target="_blank">http://localhost</a>
 """
-# ==== sdr.hu listing ====
+#DSP/RX settings
-# If you want your ham receiver to be listed publicly on sdr.hu, then take the following steps:
+dsp_plugin="csdr"
-# 1. Register at: http://sdr.hu/register
+fft_fps=9
-# 2. You will get an unique key by email. Copy it and paste here:
+fft_size=4096
-sdrhu_key = ""
+samp_rate = 250000
-# 3. Set this setting to True to enable listing:
+center_freq = 145525000
-sdrhu_public_listing = False
+rf_gain = 5
 server_hostname = "localhost"
-# ==== DSP/RX settings ====
+start_rtl_thread=True #rtl_sdr is more stable than rtl_tcp...
-fft_fps = 9
+start_rtl_command="rtl_sdr -s {samp_rate} -f {center_freq} - | nc -vvl 127.0.0.1 -p 8888".format(rf_gain=rf_gain, center_freq=center_freq, samp_rate=samp_rate) 
-fft_size = 4096  # Should be power of 2
+#start_rtl_tcp_command="rtl_tcp -s 250000 -f 145525000 -g 0 -p 8888"
-fft_voverlap_factor = (
+#You can use other SDR hardware as well, but if the command above outputs samples in a format other than [unsigned char], then the dsp plugin has to be slightly modified (at the csdr convert_u8_f part).
    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"
 digimodes_enable = True  # Decoding digimodes come with higher CPU usage.
 digimodes_fft_size = 1024
 # 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: 
 - decrease `samp_rate`,
 - set `fft_voverlap_factor` to 0,
 - decrease `fft_fps` and `fft_size`,
 - limit the number of users by decreasing `max_clients`.
 """
 # ==== I/Q sources ====
 # (Uncomment the appropriate by removing # characters at the beginning of the corresponding lines.)
 #################################################################################################
 # Is my SDR hardware supported?                                                                 #
 # Check here: https://github.com/simonyiszk/openwebrx/wiki#guides-for-receiver-hardware-support #
 #################################################################################################
 # Currently supported types of sdr receivers: "rtl_sdr", "sdrplay", "hackrf", "airspy"
 sdrs = {
    "rtlsdr": {
        "name": "RTL-SDR USB Stick",
        "type": "rtl_sdr",
        "ppm": 0,
        # you can change this if you use an upconverter. formula is:
        # shown_center_freq = center_freq + lfo_offset
        # "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",
            },
        },
    },
    "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",
            },
        },
    },
 }
 # ==== Misc settings ====
 iq_port_range = [
    4950,
    4960,
 ]  # TCP port for range 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.
 # ==== 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_min_level = -88  # in dB
 waterfall_max_level = -20
 waterfall_auto_level_margin = (5, 40)
 ### old theme by HA7ILM:
 # waterfall_colors = "[0x000000ff,0x2e6893ff, 0x69a5d0ff, 0x214b69ff, 0x9dc4e0ff,  0xfff775ff, 0xff8a8aff, 0xb20000ff]"
 # waterfall_min_level = -115 #in dB
 # waterfall_max_level = 0
 # waterfall_auto_level_margin = (20, 30)
 ##For the old colors, you might also want to set [fft_voverlap_factor] to 0.
 # Note: When the auto waterfall level button is clicked, the following happens:
 #   [waterfall_min_level] = [current_min_power_level] - [waterfall_auto_level_margin[0]]
 #   [waterfall_max_level] = [current_max_power_level] + [waterfall_auto_level_margin[1]]
 #
 #   ___|____________________________________|____________________________________|____________________________________|___> signal power
 #        \_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.
 csdr_print_bufsizes = False  # This prints the buffer sizes used for csdr processes.
 csdr_through = False  # Setting this True will print out how much data is going into the DSP chains.
 nmux_memory = 50  # in megabytes. This sets the approximate size of the circular buffer used by nmux.
 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"
--- a/csdr.py
+++ b/csdr.py
@ -1,735 +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 os
 import signal
 import threading
 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 = 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",
            "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):
        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 -{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 = secondary_chain_base + "csdr realpart_cf | "
            if self.last_decimation != 1.0:
                chain += "csdr fractional_decimator_ff {last_decimation} | "
            chain += "csdr agc_ff | csdr limit_ff | csdr convert_f_s16"
            return chain
        elif which == "packet":
            chain = secondary_chain_base + "csdr fmdemod_quadri_cf | "
            if self.last_decimation != 1.0:
                chain += "csdr fractional_decimator_ff {last_decimation} | "
            chain += "csdr convert_f_s16 | direwolf -c {direwolf_config} -r {audio_rate} -t 0 -q d -q h - 1>&2"
            return chain
    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()
        return 0
    def secondary_bpf_transition_bw(self):
        if self.secondary_demodulator == "bpsk31":
            return 31.25 / 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
        logger.debug("starting secondary demodulator from IF input sampled at %d" % self.if_samp_rate())
        secondary_command_demod = 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 = 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, preexec_fn=os.setpgrp, 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, preexec_fn=os.setpgrp, 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)
        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():
            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 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 set_squelch_level(self, squelch_level):
        self.squelch_level = squelch_level
        # no squelch required on digital voice modes
        actual_squelch = 0 if self.isDigitalVoice() or self.isPacket() else self.squelch_level
        if self.running:
            self.modification_lock.acquire()
            self.squelch_pipe_file.write("%g\n" % (float(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, preexec_fn=os.setpgrp, 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
--- a/docker/Dockerfiles/Dockerfile-airspy
+++ b/docker/Dockerfiles/Dockerfile-airspy
@ -1,6 +0,0 @@
 ARG ARCH
 FROM openwebrx-base:$ARCH
 ADD docker/scripts/install-dependencies-airspy.sh /
 RUN /install-dependencies-airspy.sh
--- a/docker/Dockerfiles/Dockerfile-base
+++ b/docker/Dockerfiles/Dockerfile-base
@ -1,17 +0,0 @@
 ARG BASE_IMAGE
 FROM $BASE_IMAGE
 RUN apk add --no-cache bash
 ADD docker/scripts/direwolf-1.5.patch /
 ADD docker/scripts/install-dependencies.sh /
 RUN /install-dependencies.sh
 ADD . /openwebrx
 WORKDIR /openwebrx
 VOLUME /config
 ENTRYPOINT [ "/openwebrx/docker/scripts/run.sh" ]
 EXPOSE 8073
--- a/docker/Dockerfiles/Dockerfile-full
+++ b/docker/Dockerfiles/Dockerfile-full
@ -1,11 +0,0 @@
 ARG ARCH
 FROM openwebrx-base:$ARCH
 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
--- a/docker/Dockerfiles/Dockerfile-hackrf
+++ b/docker/Dockerfiles/Dockerfile-hackrf
@ -1,6 +0,0 @@
 ARG ARCH
 FROM openwebrx-base:$ARCH
 ADD docker/scripts/install-dependencies-hackrf.sh /
 RUN /install-dependencies-hackrf.sh
--- a/docker/Dockerfiles/Dockerfile-rtlsdr
+++ b/docker/Dockerfiles/Dockerfile-rtlsdr
@ -1,6 +0,0 @@
 ARG ARCH
 FROM openwebrx-base:$ARCH
 ADD docker/scripts/install-dependencies-rtlsdr.sh /
 RUN /install-dependencies-rtlsdr.sh
--- a/docker/Dockerfiles/Dockerfile-sdrplay
+++ b/docker/Dockerfiles/Dockerfile-sdrplay
@ -1,7 +0,0 @@
 ARG ARCH
 FROM openwebrx-soapysdr-base:$ARCH
 ADD docker/scripts/install-dependencies-sdrplay.sh /
 ADD docker/scripts/install-lib.*.patch /
 RUN /install-dependencies-sdrplay.sh
--- a/docker/Dockerfiles/Dockerfile-soapysdr
+++ b/docker/Dockerfiles/Dockerfile-soapysdr
@ -1,6 +0,0 @@
 ARG ARCH
 FROM openwebrx-base:$ARCH
 ADD docker/scripts/install-dependencies-soapysdr.sh /
 RUN /install-dependencies-soapysdr.sh
--- a/docker/scripts/direwolf-1.5.patch
+++ b/docker/scripts/direwolf-1.5.patch
@ -1,241 +0,0 @@
 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"
--- a/docker/scripts/install-dependencies-airspy.sh
+++ b/docker/scripts/install-dependencies-airspy.sh
@ -1,26 +0,0 @@
 #!/bin/bash
 set -euxo pipefail
 function cmakebuild() {
  cd $1
  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
 apk del .build-deps
--- a/docker/scripts/install-dependencies-hackrf.sh
+++ b/docker/scripts/install-dependencies-hackrf.sh
@ -1,29 +0,0 @@
 #!/bin/bash
 set -euxo pipefail
 function cmakebuild() {
  cd $1
  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
 cmakebuild host
 cd ..
 rm -rf hackrf
 apk del .build-deps
--- a/docker/scripts/install-dependencies-rtlsdr.sh
+++ b/docker/scripts/install-dependencies-rtlsdr.sh
@ -1,26 +0,0 @@
 #!/bin/bash
 set -euxo pipefail
 function cmakebuild() {
  cd $1
  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
 apk del .build-deps
--- a/docker/scripts/install-dependencies-sdrplay.sh
+++ b/docker/scripts/install-dependencies-sdrplay.sh
@ -1,47 +0,0 @@
 #!/bin/bash
 set -euxo pipefail
 function cmakebuild() {
  cd $1
  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 $ARCH in
  x86_64)
    BINARY=SDRplay_RSP_API-Linux-2.13.1.run
    ;;
  armv*)
    BINARY=SDRplay_RSP_API-RPi-2.13.1.run
    ;;
 esac
 wget http://www.sdrplay.com/software/$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
 apk del .build-deps
--- a/docker/scripts/install-dependencies-soapysdr.sh
+++ b/docker/scripts/install-dependencies-soapysdr.sh
@ -1,29 +0,0 @@
 #!/bin/bash
 set -euxo pipefail
 function cmakebuild() {
  cd $1
  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
 git clone https://github.com/rxseger/rx_tools
 cmakebuild rx_tools
 apk del .build-deps
--- a/docker/scripts/install-dependencies.sh
+++ b/docker/scripts/install-dependencies.sh
@ -1,63 +0,0 @@
 #!/bin/bash
 set -euxo pipefail
 function cmakebuild() {
  cd $1
  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 $BUILD_PACKAGES
 git clone https://git.code.sf.net/p/itpp/git itpp
 cmakebuild itpp
 git clone https://github.com/jketterl/csdr.git -b 48khz_filter
 cd csdr
 make
 make install
 cd ..
 rm -rf csdr
 git clone https://github.com/szechyjs/mbelib.git
 cmakebuild mbelib
 if [ -d "/usr/local/lib64" ]; then
    # no idea why it's put into there now. alpine does not handle it correctly, so move it.
    mv /usr/local/lib64/libmbe* /usr/local/lib
 fi
 git clone https://github.com/jketterl/digiham.git
 cmakebuild digiham
 git clone https://github.com/f4exb/dsd.git
 cmakebuild dsd
 WSJT_DIR=wsjtx-2.1.0
 WSJT_TGZ=${WSJT_DIR}.tgz
 wget http://physics.princeton.edu/pulsar/k1jt/$WSJT_TGZ
 tar xvfz $WSJT_TGZ
 cmakebuild $WSJT_DIR
 git clone https://github.com/wb2osz/direwolf.git
 cd direwolf
 git checkout 1.5
 patch -Np1 < /direwolf-1.5.patch
 make
 make install
 cd ..
 rm -rf direwolf
 git clone https://github.com/hessu/aprs-symbols /opt/aprs-symbols
 apk del .build-deps
--- a/docker/scripts/install-lib.armv7l.patch
+++ b/docker/scripts/install-lib.armv7l.patch
@ -1,40 +0,0 @@
 --- 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
--- a/docker/scripts/install-lib.x86_64.patch
+++ b/docker/scripts/install-lib.x86_64.patch
@ -1,40 +0,0 @@
 --- 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: ${ARCH}"
@@ -60,16 +48,6 @@
 	echo " "
 	exit 1
 fi
 -
 -if /sbin/ldconfig -p | /bin/fgrep -q libusb-1.0; then
 -	echo "Libusb found, continuing..."
 -else
 -	echo " "
 -	echo "ERROR: Libusb cannot be found. Please install libusb and then run"
 -	echo "the installer again. Libusb can be installed from http://libusb.info"
 -	echo " "
 -	exit 1
 -fi
 #echo "Installing SoapySDRPlay..."
--- a/docker/scripts/run.sh
+++ b/docker/scripts/run.sh
@ -1,23 +0,0 @@
 #!/bin/bash
 set -euo pipefail
 if [[ ! -f /config/config_webrx.py ]] ; then
  cp config_webrx.py /config
 fi
 rm config_webrx.py
 ln -s /config/config_webrx.py .
 _term() {
  echo "Caught signal!" 
  kill -TERM "$child" 2>/dev/null
 }
 trap _term SIGTERM SIGINT
 python3 openwebrx.py $@ &
 child=$! 
 wait "$child"
--- a/htdocs/css/features.css
+++ b/htdocs/css/features.css
@ -1,12 +0,0 @@
@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;
 }
--- a/htdocs/css/map.css
+++ b/htdocs/css/map.css
@ -1,57 +0,0 @@
@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;
 }
--- a/htdocs/css/openwebrx-globals.css
+++ b/htdocs/css/openwebrx-globals.css
@ -1,8 +0,0 @@
 html, body
 {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: "DejaVu Sans", Verdana, Geneva, sans-serif;
 }
--- a/htdocs/css/openwebrx-header.css
+++ b/htdocs/css/openwebrx-header.css
@ -1,195 +0,0 @@
 #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;
 }
--- a/htdocs/css/openwebrx.css
+++ b/htdocs/css/openwebrx.css
--- a/htdocs/features.html
+++ b/htdocs/features.html
@ -1,21 +0,0 @@
 <HTML><HEAD>
    <TITLE>OpenWebRX Feature report</TITLE>
    <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>
--- a/htdocs/features.js
+++ b/htdocs/features.js
@ -1,24 +0,0 @@
 $(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("")
            );
        })
    });
 });
--- a/htdocs/gfx/google_maps_pin.svg
+++ b/htdocs/gfx/google_maps_pin.svg
@ -1,77 +0,0 @@
 <?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>
--- a/htdocs/gfx/openwebrx-3d-spectrum.png
+++ b/htdocs/gfx/openwebrx-3d-spectrum.png
--- a/htdocs/gfx/openwebrx-avatar-background.png
+++ b/htdocs/gfx/openwebrx-avatar-background.png
--- a/htdocs/gfx/openwebrx-avatar.png
+++ b/htdocs/gfx/openwebrx-avatar.png
--- a/htdocs/gfx/openwebrx-background-cool-blue.png
+++ b/htdocs/gfx/openwebrx-background-cool-blue.png
--- a/htdocs/gfx/openwebrx-background-lingrad.png
+++ b/htdocs/gfx/openwebrx-background-lingrad.png
--- a/htdocs/gfx/openwebrx-bookmark.png
+++ b/htdocs/gfx/openwebrx-bookmark.png
--- a/htdocs/gfx/openwebrx-directcall.png
+++ b/htdocs/gfx/openwebrx-directcall.png
--- a/htdocs/gfx/openwebrx-edit.png
+++ b/htdocs/gfx/openwebrx-edit.png
--- a/htdocs/gfx/openwebrx-groupcall.png
+++ b/htdocs/gfx/openwebrx-groupcall.png
--- a/htdocs/gfx/openwebrx-ha5kfu-top-logo.png
+++ b/htdocs/gfx/openwebrx-ha5kfu-top-logo.png
--- a/htdocs/gfx/openwebrx-logo-big.png
+++ b/htdocs/gfx/openwebrx-logo-big.png
--- a/htdocs/gfx/openwebrx-mute.png
+++ b/htdocs/gfx/openwebrx-mute.png
--- a/htdocs/gfx/openwebrx-panel-log.png
+++ b/htdocs/gfx/openwebrx-panel-log.png
--- a/htdocs/gfx/openwebrx-panel-map.png
+++ b/htdocs/gfx/openwebrx-panel-map.png
--- a/htdocs/gfx/openwebrx-panel-receiver.png
+++ b/htdocs/gfx/openwebrx-panel-receiver.png
--- a/htdocs/gfx/openwebrx-panel-status.png
+++ b/htdocs/gfx/openwebrx-panel-status.png
--- a/htdocs/gfx/openwebrx-play-button.png
+++ b/htdocs/gfx/openwebrx-play-button.png
--- a/htdocs/gfx/openwebrx-rx-details-arrow-up.png
+++ b/htdocs/gfx/openwebrx-rx-details-arrow-up.png
--- a/htdocs/gfx/openwebrx-rx-details-arrow.png
+++ b/htdocs/gfx/openwebrx-rx-details-arrow.png
--- a/htdocs/gfx/openwebrx-scale-background.png
+++ b/htdocs/gfx/openwebrx-scale-background.png
--- a/htdocs/gfx/openwebrx-speaker-muted.png
+++ b/htdocs/gfx/openwebrx-speaker-muted.png
--- a/htdocs/gfx/openwebrx-speaker.png
+++ b/htdocs/gfx/openwebrx-speaker.png
--- a/htdocs/gfx/openwebrx-squelch-button.png
+++ b/htdocs/gfx/openwebrx-squelch-button.png
--- a/htdocs/gfx/openwebrx-top-logo.png
+++ b/htdocs/gfx/openwebrx-top-logo.png
--- a/htdocs/gfx/openwebrx-top-photo.jpg
+++ b/htdocs/gfx/openwebrx-top-photo.jpg
--- a/htdocs/gfx/openwebrx-trashcan.png
+++ b/htdocs/gfx/openwebrx-trashcan.png
--- a/htdocs/gfx/openwebrx-waterfall-auto.png
+++ b/htdocs/gfx/openwebrx-waterfall-auto.png
--- a/htdocs/gfx/openwebrx-waterfall-default.png
+++ b/htdocs/gfx/openwebrx-waterfall-default.png
--- a/htdocs/gfx/openwebrx-zoom-in-total.png
+++ b/htdocs/gfx/openwebrx-zoom-in-total.png
--- a/htdocs/gfx/openwebrx-zoom-in.png
+++ b/htdocs/gfx/openwebrx-zoom-in.png
--- a/htdocs/gfx/openwebrx-zoom-out-total.png
+++ b/htdocs/gfx/openwebrx-zoom-out-total.png
--- a/htdocs/gfx/openwebrx-zoom-out.png
+++ b/htdocs/gfx/openwebrx-zoom-out.png
--- a/htdocs/include/header.include.html
+++ b/htdocs/include/header.include.html
@ -1,28 +0,0 @@
 <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>
--- a/htdocs/index.html
+++ b/htdocs/index.html
@ -1,255 +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 src="static/sdr.js"></script>
 		<script src="static/mathbox-bundle.min.js"></script>
        <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>
        <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="openwebrx-mathbox-container"> </div>
    <div id="webrx-canvas-container">
        <!-- add canvas here by javascript -->
    </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>
            <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</strong></div>
                        <span id="openwebrx-client-1">Author: </span><a href="http://blog.sdr.hu/about" target="_blank">András Retzler, HA7ILM</a><br />You can support OpenWebRX development via <a href="http://blog.sdr.hu/support" target="_blank">PayPal!</a><br/>
                        <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">---.--- MHz</div>
                        <div id="webrx-mouse-freq">---.--- MHz</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="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>
                    </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 class="openwebrx-button openwebrx-square-button" onclick="mathbox_toggle();" title="Toggle 3D view"><img src="static/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>
    </div>
 </div>
    <div id="openwebrx-big-grey" onclick="playButtonClick();">
        <div id="openwebrx-play-button-text">
        <img id="openwebrx-play-button" src="static/gfx/openwebrx-play-button.png" />
        <br /><br />Start OpenWebRX
        </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>
--- a/htdocs/index.wrx
+++ b/htdocs/index.wrx
@ -0,0 +1,93 @@
 <!DOCTYPE HTML>
 <!--
 OpenWebRX (c) Copyright 2013-2014 Andras Retzler <randras@sdr.hu>
 This file is part of OpenWebRX.
    OpenWebRX is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    OpenWebRX 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 General Public License for more details.
    You should have received a copy of the GNU General Public License
    along with OpenWebRX. If not, see <http://www.gnu.org/licenses/>.
 -->
 <html>
 	<head>
 		<title>OpenWebRX | Open Source Web-based SDR for everyone!</title>
 		<script type="text/javascript">
 			//Local variables
 			client_id="%[CLIENT_ID]";
 			ws_url="%[WS_URL]";
 			rx_photo_height=%[RX_PHOTO_HEIGHT];
 		</script>
 		<script src="openwebrx.js"></script>
 		<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="http://openwebrx.org/" 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>
 		</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="webrx-canvas-container">
 				<div id="openwebrx-phantom-canvas"></div>
 				<!-- add canvas here by javascript -->
 			</div>
 			<div id="openwebrx-panels-container">
 				<div class="openwebrx-panel" data-panel-name="client-params" data-panel-pos="right" data-panel-order="0" data-panel-size="215,70">
 					<div id="webrx-actual-freq">---.--- MHz</div>
 					<div id="webrx-mouse-freq">---.--- MHz</div>
 					<!--<div class="openwebrx-button" onclick="ws.send('SET mod=wfm');" >WFM</div>-->
 					<div class="openwebrx-button" onclick="demodulator_analog_replace('nfm');">FM</div>
 					<div class="openwebrx-button" onclick="demodulator_analog_replace('am');">AM</div>					
 					<div class="openwebrx-button" onclick="demodulator_analog_replace('lsb');">LSB</div>
 					<div class="openwebrx-button" onclick="demodulator_analog_replace('usb');">USB</div>
 					<div class="openwebrx-button" onclick="demodulator_analog_replace('cw');">CW</div>
 				</div>
 				<div class="openwebrx-panel" id="webrx-config" data-panel-name="debug" data-panel-pos="left" data-panel-order="0" data-panel-size="585,130">
 					<div class="openwebrx-panel-inner">
 						<div id="openwebrx-client-log-title">openwebrx.js (beta) client log </strong><span id="openwebrx-problems"></span></div>
 						Author: <a href="javascript:sendmail2('pi7qtu=alz$pc');">HA7ILM</a>. Please send me bug reports and suggestions.<br/>
 						Client status: <span id="openwebrx-client-status">
 							<span id="openwebrx-audio-sps"></span><br/>
 						<!--Server status: <span id="openwebrx-server-status">no information</span><br/>-->
 						Your client ID is: <em>%[CLIENT_ID]</em><br />
 						<div id="openwebrx-debugdiv"></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>
 	</div>
 </div>
 	</body>
 </html>
--- a/htdocs/lib/AprsMarker.js
+++ b/htdocs/lib/AprsMarker.js
@ -1,91 +0,0 @@
 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);
 };
--- a/htdocs/lib/AudioEngine.js
+++ b/htdocs/lib/AudioEngine.js
@ -1,230 +0,0 @@
 // 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 sdrjs.ImaAdpcm();
    this.compression = 'none';
    this.setupResampling();
    this.resampler = new sdrjs.RationalResamplerFF(this.resamplingFactor, 1);
    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(sdrjs.ConvertI16_F(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);
 };
--- a/htdocs/lib/AudioProcessor.js
+++ b/htdocs/lib/AudioProcessor.js
@ -1,58 +0,0 @@
 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);
--- a/htdocs/lib/BookmarkBar.js
+++ b/htdocs/lib/BookmarkBar.js
@ -1,177 +0,0 @@
 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;
        demodulator_set_offset_frequency(0, 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);
 };
--- a/htdocs/lib/Measurement.js
+++ b/htdocs/lib/Measurement.js
@ -1,62 +0,0 @@
 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);
 };
--- a/htdocs/lib/ProgressBar.js
+++ b/htdocs/lib/ProgressBar.js
@ -1,113 +0,0 @@
 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);
 };
--- a/htdocs/lib/chroma.min.js
+++ b/htdocs/lib/chroma.min.js
--- a/htdocs/lib/jquery-3.2.1.min.js
+++ b/htdocs/lib/jquery-3.2.1.min.js
--- a/htdocs/lib/jquery.nanoscroller.js
+++ b/htdocs/lib/jquery.nanoscroller.js
--- a/htdocs/lib/nanoscroller.css
+++ b/htdocs/lib/nanoscroller.css
@ -1,55 +0,0 @@
 /** initial setup **/
 .nano {
  position : relative;
  width    : 100%;
  height   : 100%;
  overflow : hidden;
 }
 .nano > .nano-content {
  position      : absolute;
  overflow      : scroll;
  overflow-x    : hidden;
  top           : 0;
  right         : 0;
  bottom        : 0;
  left          : 0;
 }
 .nano > .nano-content:focus {
  outline: thin dotted;
 }
 .nano > .nano-content::-webkit-scrollbar {
  display: none;
 }
 .has-scrollbar > .nano-content::-webkit-scrollbar {
  display: block;
 }
 .nano > .nano-pane {
  background : rgba(0,0,0,.25);
  position   : absolute;
  width      : 8px;
  right      : 0;
  top        : 0;
  bottom     : 0;
  visibility : hidden\9; /* Target only IE7 and IE8 with this hack */
  opacity    : .01;
  -webkit-transition    : .2s;
  -moz-transition       : .2s;
  -o-transition         : .2s;
  transition            : .2s;
  -moz-border-radius    : 3px;
  -webkit-border-radius : 3px;
  border-radius         : 3px;
 }
 .nano > .nano-pane > .nano-slider {
  background: #444;
  background: rgba(0,0,0,.5);
  position              : relative;
  margin                : 0 0px;
  -moz-border-radius    : 4px;
  -webkit-border-radius : 4px;
  border-radius         : 4px;
 }
 .nano:hover > .nano-pane, .nano-pane.active, .nano-pane.flashed {
  visibility : visible\9; /* Target only IE7 and IE8 with this hack */
  opacity    : 0.99;
 }
--- a/htdocs/lib/nite-overlay.js
+++ b/htdocs/lib/nite-overlay.js
@ -1,143 +0,0 @@
 /* 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();
    }
 }
--- a/htdocs/map.html
+++ b/htdocs/map.html
@ -1,24 +0,0 @@
 <!DOCTYPE HTML>
 <html>
 <head>
    <title>OpenWebRX Map</title>
    <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>
--- a/htdocs/map.js
+++ b/htdocs/map.js
@ -1,356 +0,0 @@
 (function(){
    var protocol = 'ws';
    if (window.location.toString().startsWith('https://')) {
        protocol = 'wss';
    }
    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 ws_url = protocol + "://" + (window.location.origin.split("://")[1]) + "/ws/";
    if (!("WebSocket" in window)) return;
    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);
 })();
--- a/htdocs/mathbox-bundle.min.js
+++ b/htdocs/mathbox-bundle.min.js
--- a/htdocs/mathbox.css
+++ b/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;
 }
 .shadergraph-node.shadergraph-has-code::before {
  position: absolute;
  content: ' ';
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: none;
  border: 2px solid rgba(0, 0, 0, .25);
  border-radius: 5px;
 }
 .shadergraph-node.shadergraph-has-code:hover::before {
  display: block;
 }
 .shadergraph-code {
  z-index: 10000;
  display: none;
  position: absolute;
  background: #fff;
  color: #000;
  white-space: pre;
  padding: 10px;
  border-radius: 5px;
  box-shadow: 0 1px  2px rgba(0, 0, 0, .2),
              0 1px  10px rgba(0, 0, 0, .2);
  font-family: monospace;
  font-size: 10px;
  line-height: 12px;
 }
 .shadergraph-overlay {
  position: fixed;
  top: 50%;
  left: 0;
  right: 0;
  bottom: 0;
  background: #fff;
  border-top: 1px solid #CCC;
 }
 .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;
  line-height: 24px;
  width: 24px;
  text-align: center;
  vertical-align: middle;
 }
 .shadergraph-overlay .shadergraph-close:hover {
  background: rgba(255,255,255,1);
  color: rgba(0, 0, 0, 1);
 }
 .shadergraph-overlay .shadergraph-graph {
  padding-top: 10px;
  overflow: visible;
  min-height: 100%;
 }
 .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 {
  position: absolute;
  top: 50%;
  left: 50%;
  margin-left: -100px;
  margin-top: -100px;
  width: 200px;
  height: 200px;
  box-sizing: border-box;
  border-radius: 50%;
 }
 .mathbox-logo > div > :nth-child(1) {
  -webkit-transform: scale(0.5, 0.5);
  transform:         rotateX(30deg) scale(0.5, 0.5);
 }
 .mathbox-logo > div > :nth-child(2) {
  -webkit-transform: rotateX(90deg) scale(0.42, 0.42);
  transform:         rotateX(90deg) scale(0.42, 0.42);
 }
 .mathbox-logo > div > :nth-child(3) {
  -webkit-transform: rotateY(90deg) scale(0.35, 0.35);
  transform:         rotateY(90deg) scale(0.35, 0.35);
 }
 .mathbox-logo > :nth-child(1) > :nth-child(1) {
  border: 16px solid #808080;
 }
 .mathbox-logo > :nth-child(1) > :nth-child(2) {
  border: 19px solid #A0A0A0;
 }
 .mathbox-logo > :nth-child(1) > :nth-child(3) {
  border: 23px solid #C0C0C0;
 }
 .mathbox-logo > :nth-child(2) > :nth-child(1) {
  border: 27px solid #808080;
 }
 .mathbox-logo > :nth-child(2) > :nth-child(2) {
  border: 32px solid #A0A0A0;
 }
 .mathbox-logo > :nth-child(2) > :nth-child(3) {
  border: 38px solid #C0C0C0;
 }
 .mathbox-splash-blue .mathbox-progress {
  background: #def;
 }
 .mathbox-splash-blue .mathbox-progress > div {
  background: #1979e7;
 }
 .mathbox-splash-blue .mathbox-logo > :nth-child(1) > :nth-child(1) {
  border-color: #1979e7;
 }
 .mathbox-splash-blue .mathbox-logo > :nth-child(1) > :nth-child(2) {
  border-color: #33b0ff;
 }
 .mathbox-splash-blue .mathbox-logo > :nth-child(1) > :nth-child(3) {
  border-color: #75eaff;
 }
 .mathbox-splash-blue .mathbox-logo > :nth-child(2) > :nth-child(1) {
  border-color: #18487F;
 }
 .mathbox-splash-blue .mathbox-logo > :nth-child(2) > :nth-child(2) {
  border-color: #33b0ff;
 }
 .mathbox-splash-blue .mathbox-logo > :nth-child(2) > :nth-child(3) {
  border-color: #75eaff;
 }  
 .mathbox-overlays {
  position: absolute;
  left:   0;
  top:    0;
  right:  0;
  bottom: 0;
  pointer-events: none;
  transform-style: preserve-3d;
  overflow: hidden;
 }
 .mathbox-overlays > div {
  transform-style: preserve-3d;
 }
 .mathbox-overlay > div {
  position: absolute;
  will-change: transform, opacity;
 }
 .mathbox-label {
  font-family: sans-serif;
 }
 .mathbox-outline-1 {
  text-shadow:
    -1px -1px 0px rgb(255, 255, 255),
     1px  1px 0px rgb(255, 255, 255),
    -1px  1px 0px rgb(255, 255, 255),
     1px -1px 0px rgb(255, 255, 255),
     1px  0px 1px rgb(255, 255, 255),
    -1px  0px 1px rgb(255, 255, 255),
     0px -1px 1px rgb(255, 255, 255),
     0px  1px 1px rgb(255, 255, 255);
 }
 .mathbox-outline-2 {
  text-shadow:
     0px -2px 0px rgb(255, 255, 255),
     0px  2px 0px rgb(255, 255, 255),
    -2px  0px 0px rgb(255, 255, 255),
     2px  0px 0px rgb(255, 255, 255),
    -1px -2px 0px rgb(255, 255, 255),
    -2px -1px 0px rgb(255, 255, 255),
    -1px  2px 0px rgb(255, 255, 255),
    -2px  1px 0px rgb(255, 255, 255),
     1px  2px 0px rgb(255, 255, 255),
     2px  1px 0px rgb(255, 255, 255),
     1px -2px 0px rgb(255, 255, 255),
     2px -1px 0px rgb(255, 255, 255);
 }
 .mathbox-outline-3 {
  text-shadow:
     3px  0px 0px rgb(255, 255, 255),
    -3px  0px 0px rgb(255, 255, 255),
     0px  3px 0px rgb(255, 255, 255),
     0px -3px 0px rgb(255, 255, 255),
    -2px -2px 0px rgb(255, 255, 255),
    -2px  2px 0px rgb(255, 255, 255),
     2px  2px 0px rgb(255, 255, 255),
     2px -2px 0px rgb(255, 255, 255),
    -1px -2px 1px rgb(255, 255, 255),
    -2px -1px 1px rgb(255, 255, 255),
    -1px  2px 1px rgb(255, 255, 255),
    -2px  1px 1px rgb(255, 255, 255),
     1px  2px 1px rgb(255, 255, 255),
     2px  1px 1px rgb(255, 255, 255),
     1px -2px 1px rgb(255, 255, 255),
     2px -1px 1px rgb(255, 255, 255);
 }
 .mathbox-outline-4 {
  text-shadow:
     4px  0px 0px rgb(255, 255, 255),
    -4px  0px 0px rgb(255, 255, 255),
     0px  4px 0px rgb(255, 255, 255),
     0px -4px 0px rgb(255, 255, 255),
    -3px -2px 0px rgb(255, 255, 255),
    -3px  2px 0px rgb(255, 255, 255),
     3px  2px 0px rgb(255, 255, 255),
     3px -2px 0px rgb(255, 255, 255),
    -2px -3px 0px rgb(255, 255, 255),
    -2px  3px 0px rgb(255, 255, 255),
     2px  3px 0px rgb(255, 255, 255),
     2px -3px 0px rgb(255, 255, 255),
    -1px -2px 1px rgb(255, 255, 255),
    -2px -1px 1px rgb(255, 255, 255),
    -1px  2px 1px rgb(255, 255, 255),
    -2px  1px 1px rgb(255, 255, 255),
     1px  2px 1px rgb(255, 255, 255),
     2px  1px 1px rgb(255, 255, 255),
     1px -2px 1px rgb(255, 255, 255),
     2px -1px 1px rgb(255, 255, 255);
 }
 .mathbox-outline-fill, .mathbox-outline-fill * {
  color: #fff !important;
 }
--- a/htdocs/openwebrx.css
+++ b/htdocs/openwebrx.css
@ -0,0 +1,433 @@
 /*
 OpenWebRX (c) Copyright 2013-2014 Andras Retzler <randras@sdr.hu>
 This file is part of OpenWebRX.
    OpenWebRX is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    OpenWebRX 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 General Public License for more details.
    You should have received a copy of the GNU General Public License
    along with OpenWebRX. If not, see <http://www.gnu.org/licenses/>.
 */
 html, body
 {
 	margin: 0;
 	padding: 0;
   height: 100%;
 	font-family: "DejaVu Sans", Verdana, Geneva, sans-serif;
 	overflow: hidden;
 }
 #webrx-top-container
 {
 	position: relative;
 	z-index:1000;
 }
 .webrx-top-bar-parts
 {
 	position: absolute;
 	top: 0px;
 	left: 0px;
 	width:100%;
 	height:67px;
 }
 #webrx-top-bar-background
 {
 	background-color: #808080;
 	opacity: 0.15;
 	filter:alpha(opacity=15);
 }
 #webrx-top-bar
 {
 	margin:0;
 	padding:0;
 }
 #webrx-top-logo
 {
 	position: absolute;
 	top: 12px;
 	left: 15px;
 }
 #webrx-ha5kfu-top-logo
 {
 	position: absolute;
 	top: 19px;
 	right: 15px;
 }
 #webrx-top-photo
 {
 	width: 100%;
 	display: block;
 }
 #webrx-rx-avatar-background
 {
 	cursor:pointer;
 	position: absolute;
 	left: 285px;
 	top: 6px;
 }
 #webrx-rx-avatar
 {
 	cursor:pointer;
 	position: absolute;
 	left: 289px;
 	top: 10px;
 	width: 46px;
 	height: 46px;
 }
 #webrx-top-photo-clip
 {
 	max-height: 350px;
 	overflow: hidden;
 	position: relative;
 }
 /*#webrx-bottom-bar
 {
 	position: absolute;
 	bottom: 0px;
 	width: 100%;
 	height: 117px;
 	background-image:url(gfx/webrx-bottom-bar.png);
 }*/
 #webrx-page-container
 {
   min-height:100%;
   position:relative;
 }
 /*#webrx-photo-gradient-left
 {
 	position: absolute;
 	bottom: 0px;
 	left: 0px;
 	background-image:url(gfx/webrx-photo-gradient-corner.png);	
 	width: 59px;
 	height: 92px;
 }
 #webrx-photo-gradient-middle
 {
 	position: absolute;
 	bottom: 0px;
 	left: 59px;
 	right: 59px;
 	height: 92px;
 	background-image:url(gfx/webrx-photo-gradient-middle.png);	
 }
 #webrx-photo-gradient-right
 {
 	position: absolute;
 	bottom: 0px;
 	right: 0px;
 	background-image:url(gfx/webrx-photo-gradient-corner.png);	
 	width: 59px;
 	height: 92px;
   -webkit-transform:scaleX(-1);
   -moz-transform:scaleX(-1);
   -ms-transform:scaleX(-1);
   -o-transform:scaleX(-1);
   transform:scaleX(-1);
 }*/
 #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;
 }
 #webrx-rx-title
 {
 	white-space:nowrap;
 	overflow: hidden;
 	cursor:pointer;
 	position: absolute;
 	left: 350px;
 	top: 13px;
 	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;
 	position: absolute;
 	left: 350px;
 	top: 34px;
 }
 #webrx-rx-desc a
 {
 	color: #909090;
 	/*text-decoration: none;*/
 }
 #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;
 }
 /*canvas#waterfall-canvas
 {
 	border-style: none;
 	border-width: 1px;
 	height: 150px;
 	width: 100%;
 }*/
 #openwebrx-scale-container
 {
 	height: 47px;
 	background-image: url("gfx/openwebrx-scale-background.png");
 	background-repeat: repeat-x;
 	overflow: hidden;
 	z-index:1000;
 	position: relative;
 }
 #webrx-canvas-container
 {
 	/*background-image:url('gfx/openwebrx-blank-background-1.jpg');*/
 	position: relative;
 	height: 2000px;
 	overflow-y: scroll;
 	overflow-x: hidden;
 	/*background-color: #646464;*/
 	/*background-image: -webkit-linear-gradient(top, rgba(247,247,247,1) 0%, rgba(0,0,0,1) 100%);*/
 	background-image: url('gfx/openwebrx-background-cool-blue.png');
 	background-repeat: no-repeat;
 	background-color: #1e5f7f;
 	cursor: crosshair;
 }
 #webrx-canvas-container canvas
 {
 	position: absolute;
 	border-style: none;
 }
 #openwebrx-phantom-canvas
 {
 	position: absolute;
 	width: 0px;
 	height: 0px;
 }
 /*#openwebrx-canvas-gradient-background
 {
 	overflow: hidden;
 	width: 100%;
 	height: 396px;
 }*/
 /*#webrx-debugdiv
 {
 	font-size: 10pt;
 	/*overflow-y:scroll;*/
 /*}*/
 #webrx-main-container
 {
 	position: relative;
 	width: 100%;
 	margin: 0;
 	padding: 0;
 }
 .webrx-error
 {
 	font-weight: bold;
 	color: #ff6262;
 }
 #openwebrx-problems span
 {
 	background: #ff6262;
 	padding: 3px;
 	font-size: 8pt;
 	color: white;
 	font-weight: bold;
 	border-radius: 4px;
 	-moz-border-radius: 4px;
 	margin: 0px 2px 0px 2px;
 }
 /*#webrx-freq-show
 {
 	visibility: hidden;
 	position: absolute;
 	top: 0px;
 	left: 0px;
 	padding: 5px;
 	font-weight: bold;
 	border-radius: 10px;
 	-moz-border-radius: 10px;
 	background-color: #999999;
 	color: White;
 	z-index:9999; /*should be higher?
 }*/
 /* removed non-free fonts like that: */
 /*@font-face {
    font-family: 'unibody_8_pro_regregular';
    src: url('gfx/unibody8pro-regular-webfont.eot');
    src: url('gfx/unibody8pro-regular-webfont.ttf');
    font-weight: normal;
    font-style: normal;
 }*/
@font-face {
    font-family: 'expletus-sans-medium';
    src: url('gfx/font-expletus-sans/ExpletusSans-Medium.ttf');
    font-weight: normal;
    font-style: normal;
 }
 #webrx-actual-freq
 {
 	width: 100%;
 	text-align: left;
 	font-size: 16pt;
 	font-family: 'expletus-sans-medium';
 	padding: 0;
 	margin: 0;
 	line-height:22px;
 }
 #webrx-mouse-freq
 {
 	width: 100%;
 	text-align: left;
 	font-size: 10pt;
 	color: #AAA;
 	font-family: 'expletus-sans-medium';
 	margin-bottom: 5px;
 }
 .openwebrx-panel
 {
 	visibility: hidden;
 	background-color: #575757;
 	padding: 10px;
 	color: white;
 	position: fixed;
 	font-size: 10pt;
 	border-radius: 15px;
 	-moz-border-radius: 15px;
 }
 .openwebrx-panel a
 {
 	color: #5ca8ff;
 	text-shadow: none;
 }
 .openwebrx-panel-inner
 {
 	overflow-y: auto;
 	overflow-x: hidden;
 	height: 100%;
 }
 .openwebrx-button
 {
 	background-color: #373737;
 	padding: 5px;
 	border-radius: 5px;
 	-moz-border-radius: 5px;
 	color: White;
 	font-weight: bold;
 	width: auto;
 	float: left;
 	margin-right: 5px;
 	cursor: pointer;
 	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% );
 }
 .openwebrx-button:hover
 {
 	/*background:-webkit-gradient( linear, left top, left bottom, color-stop(0.0	, #3F3F3F), color-stop(1, #777777) );
 	background:-moz-linear-gradient( center top, #373737 5%, #4F4F4F 100% );*/
 	background: #474747;
 	color: #FFFF50;
 }
 .openwebrx-button:active 
 {
 	background: #777777;
 	color: #FFFF50;	
 }
 #openwebrx-client-log-title 
 {
 	margin-bottom: 5px;
 	font-weight: bold;
 }
--- a/htdocs/openwebrx.js
+++ b/htdocs/openwebrx.js
--- a/htdocs/retry.html
+++ b/htdocs/retry.html
@ -0,0 +1,92 @@
 <html>
 <!--
 OpenWebRX (c) Copyright 2013 Andras Retzler <ha7ilm@sdr.hu>
 This file is part of OpenWebRX.
    OpenWebRX is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    OpenWebRX 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 General Public License for more details.
    You should have received a copy of the GNU General Public License
    along with OpenWebRX. 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>
--- a/htdocs/sdr.js
+++ b/htdocs/sdr.js
--- a/htdocs/upgrade.html
+++ b/htdocs/upgrade.html
@ -0,0 +1,93 @@
 <html>
 <!--
 OpenWebRX (c) Copyright 2013 Andras Retzler <ha7ilm@sdr.hu>
 This file is part of OpenWebRX.
    OpenWebRX is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    OpenWebRX 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 General Public License for more details.
    You should have received a copy of the GNU General Public License
    along with OpenWebRX. 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>
--- a/openwebrx.py
+++ b/openwebrx.py
@ -1,63 +1,438 @@
-#!/usr/bin/env python3
+#!/usr/bin/python2
 print "" # python2.7 is required to run OpenWebRX instead of python3. Please run me by: python2 openwebrx.py
 """
 OpenWebRX: open-source web based SDR for everyone!
-from http.server import HTTPServer
+This file is part of OpenWebRX.
 from owrx.http import RequestHandler
 from owrx.config import PropertyManager
 from owrx.feature import FeatureDetector
 from owrx.source import SdrService
 from socketserver import ThreadingMixIn
 from owrx.sdrhu import SdrHuUpdater
 from owrx.service import Services
 from owrx.websocket import WebSocketConnection
-import logging
+    OpenWebRX is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
-logging.basicConfig(level=logging.DEBUG, format="%(asctime)s - %(name)s - %(levelname)s - %(message)s")
+    OpenWebRX 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 General Public License for more details.
    You should have received a copy of the GNU General Public License
    along with OpenWebRX.  If not, see <http://www.gnu.org/licenses/>.
 Authors:
    Andras Retzler, HA7ILM <randras@sdr.hu>
 """
 # http://www.codeproject.com/Articles/462525/Simple-HTTP-Server-and-Client-in-Python
 # some ideas are used from the artice above
-class ThreadedHttpServer(ThreadingMixIn, HTTPServer):
+import os
-    pass
+import code
 import importlib
 import plugins
 import plugins.dsp
 import thread
 import time
 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 config_webrx as cfg
 import signal
 #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(signal, frame):
 	print "[openwebrx] Ctrl+C: aborting."
 	os._exit(1) #not too graceful exit
 def main():
-    print(
+	global clients, clients_mutex, pypy
-        """
+	print
 	print "OpenWebRX - Open Source Web Based SDR for Everyone  | for license see LICENSE file in the package"
 	print "_________________________________________________________________________________________________"
 	print 
 	print "Author contact info:    Andras Retzler, HA7ILM <randras@sdr.hu>"
 	print 
-OpenWebRX - Open Source SDR Web App for Everyone!  | for license see LICENSE file in the package
+	#Set signal handler
-_________________________________________________________________________________________________
+	signal.signal(signal.SIGINT, handle_signal) #http://stackoverflow.com/questions/1112343/how-do-i-capture-sigint-in-python
-Author contact info:    Andras Retzler, HA7ILM <randras@sdr.hu>
+	#Load plugins
 	import_all_plugins("plugins/dsp/")
-    """
+	#Pypy
-    )
+	if pypy: print "pypy detected (and now something completely different: a c code is expected to run at a speed of 3*10^8 m/s?)"
-    pm = PropertyManager.getSharedInstance().loadConfig("config_webrx")
+	#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
-    featureDetector = FeatureDetector()
+	#Start rtl thread
-    if not featureDetector.is_available("core"):
+	if cfg.start_rtl_thread:
-        print(
+		rtl_thread=threading.Thread(target = lambda:subprocess.Popen(cfg.start_rtl_command, shell=True), args=())
-            "you are missing required dependencies to run openwebrx. "
+		rtl_thread.start()
-            "please check that the following core requirements are installed:"
+		print "[openwebrx-main] Started rtl thread: "+cfg.start_rtl_command
        )
        print(", ".join(featureDetector.get_requirements("core")))
        return
-    # Get error messages about unknown / unavailable features as soon as possible
+	#Run rtl_mus.py in a different OS thread
-    SdrService.loadProps()
+	python_command="pypy" if pypy else "python2"
 	rtl_mus_thread=threading.Thread(target = lambda:subprocess.Popen(python_command+" rtl_mus.py config_rtl", shell=True), args=())
 	rtl_mus_thread.start() # The new feature in GNU Radio 3.7: top_block() locks up ALL python threads until it gets the TCP connection.
 	print "[openwebrx-main] Started rtl_mus."
 	time.sleep(1) #wait until it really starts	
-    if "sdrhu_key" in pm and pm["sdrhu_public_listing"]:
+	#Initialize clients
-        updater = SdrHuUpdater()
+	clients=[]
-        updater.start()
+	clients_mutex=threading.Lock()
-    Services.start()
+	#Start spectrum thread
-
+	print "[openwebrx-main] Starting spectrum thread."
-    server = ThreadedHttpServer(("0.0.0.0", pm.getPropertyValue("web_port")), RequestHandler)
+	spectrum_thread=threading.Thread(target = spectrum_thread_function, args = ())
-    server.serve_forever()
+	spectrum_thread.start()
 	#threading.Thread(target = measure_thread_function, args = ()).start()
 	#Start HTTP thread
 	httpd = MultiThreadHTTPServer(('', cfg.web_port), WebRXHandler)
 	print('[openwebrx-main] Starting HTTP server.')
 	httpd.serve_forever()
-if __name__ == "__main__":
+# This is a debug function below:
-    try:
+measure_value=0
-        main()
+def measure_thread_function():
-    except KeyboardInterrupt:
+	global measure_value
-        WebSocketConnection.closeAll()
+	while True:	
-        Services.stop()
+		print "[openwebrx-measure] value is",measure_value
 		measure_value=0
 		time.sleep(1)
 def spectrum_thread_function():
 	global clients_mutex
 	global clients
 	dsp=getattr(plugins.dsp,cfg.dsp_plugin).plugin.dsp_plugin()
 	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)
 	sleep_sec=0.87/cfg.fft_fps
 	print "[openwebrx-spectrum] Spectrum thread initialized successfully."
 	dsp.start()
 	print "[openwebrx-spectrum] Spectrum thread started." 
 	while True:
 		data=dsp.read(cfg.fft_size*4)
 		#print "gotcha",len(data),"bytes of spectrum data via spectrum_thread_function()"
 		clients_mutex.acquire()
 		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
 		clients_mutex.release()
 def get_client_by_id(client_id, use_mutex=True):
 	global clients_mutex
 	global clients
 	output=-1
 	if use_mutex: clients_mutex.acquire()
 	for i in range(0,len(clients)):
 		if(clients[i].id==client_id):
 			output=i
 			break
 	if use_mutex: clients_mutex.release()
 	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():
 	# if client doesn't open websocket for too long time, we drop it
 	global clients_mutex
 	global clients
 	clients_mutex.acquire()
 	correction=0
 	for i in range(0,len(clients)):
 		i-=correction
 		#print "cleanup_clients:: len(clients)=", len(clients), "i=", i
 		if (not clients[i].ws_started) and (time.time()-clients[i].gen_time)>45:
 			print "[openwebrx] cleanup_clients :: client timeout to open WebSocket"
 			close_client(i, False)
 			correction+=1
 	clients_mutex.release()
 def generate_client_id(ip):
 	#add a client
 	global clients
 	global clients_mutex
 	new_client=namedtuple("ClientStruct", "id gen_time ws_started sprectum_queue ip closed")	
 	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.closed=[False] #byref, not exactly sure if required
 	new_client.dsp=None
 	clients_mutex.acquire()
 	clients.append(new_client)
 	log_client(new_client,"client added. Clients now: {0}".format(len(clients)))
 	clients_mutex.release()
 	cleanup_clients()
 	return new_client.id
 def close_client(i, use_mutex=True):
 	global clients_mutex
 	global clients
 	log_client(clients[i],"client being closed.")
 	if use_mutex: clients_mutex.acquire()
 	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
 	del clients[i]
 	if use_mutex: clients_mutex.release()
 class WebRXHandler(BaseHTTPRequestHandler):    
 	def proc_read_thread():
 		pass
 	def do_GET(self):
 		global dsp_plugin
 		global clients_mutex
 		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 "" 
 		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[:4]=="/ws/":
 				try:
 					# ========= WebSocket handshake  =========
 					ws_success=True
 					try:				
 						rxws.handshake(self)
 						clients_mutex.acquire()				
 						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(): clients_mutex.release()
 					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} setup".format(str(cfg.center_freq),str(cfg.samp_rate),cfg.fft_size,cfg.fft_fps))
 					# ========= Initialize DSP =========
 					dsp=getattr(plugins.dsp,cfg.dsp_plugin).plugin.dsp_plugin()
 					dsp.set_samp_rate(cfg.samp_rate)
 					dsp.set_demodulator("nfm")
 					dsp.set_offset_freq(0)
 					dsp.set_bpf(-4000,4000)
 					dsp.start()
 					myclient.dsp=dsp
 					while True:
 						if myclient.closed[0]: 
 							print "[openwebrx-httpd:ws] client closed by other thread"
 							break
 						# ========= send audio =========
 						temp_audio_data=dsp.read(1024*8)
 						rxws.send(self, temp_audio_data, "AUD ")
 						# ========= send spectrum =========
 						while not myclient.spectrum_queue.empty():
 							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)
 						# ========= process commands =========
 						while True:
 							rdata=rxws.recv(self, False)
 							if not rdata: break
 							#try:
 							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 <= float(param_value) <= filter_limit:
 										bpf_set=True
 										new_bpf[0]=int(param_value)
 									elif param_name == "high_cut" and -filter_limit <= float(param_value) <= filter_limit:
 										bpf_set=True
 										new_bpf[1]=int(param_value)
 									elif param_name == "offset_freq" and -cfg.samp_rate/2 <= float(param_value) <= cfg.samp_rate/2:
 										dsp.set_offset_freq(int(param_value))
 									elif param_name=="mod":
 										dsp.stop()
 										dsp.set_demodulator(param_value)
 										dsp.start()
 									else:
 										print "[openwebrx-httpd:ws] invalid parameter"
 								if bpf_set:
 									dsp.set_bpf(*new_bpf)
 								#code.interact(local=locals())
 				except:
 					exc_type, exc_value, exc_traceback = sys.exc_info()
 					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				
 				try:
 					dsp.stop()
 					del dsp
 				except:
 					print "[openwebrx-httpd] error in dsp.stop()"
 				#delete disconnected client
 				try:
 					clients_mutex.acquire()
 					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:
 					clients_mutex.release()
 				return
 			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:]
 				if extension == "wrx" and ((self.headers['user-agent'].count("Chrome")==0 and self.headers['user-agent'].count("Firefox")==0) if 'user-agent' in self.headers.keys() else True) and (not request_param.count("unsupported")):
 					self.send_response(302)
 					self.send_header('Content-type','text/html')
 					self.send_header("Location", "http://{0}:{1}/upgrade.html".format(cfg.server_hostname,cfg.web_port))
 					self.end_headers()
 					self.wfile.write("<html><body><h1>Object moved</h1>Please <a href=\"/upgrade.html\">click here</a> to continue.</body></html>")
 					return
 				if extension == "wrx": cleanup_clients()
 				if extension == "wrx" and cfg.max_clients<=len(clients):
 					self.send_response(302) #backported max_clients fix
 					self.send_header('Content-type','text/html')
 					self.send_header("Location", "http://{0}:{1}/retry.html".format(cfg.server_hostname,cfg.web_port))
 					self.end_headers()
 					self.wfile.write("<html><body><h1>Object moved</h1>Please <a href=\"/retry.html\">click here</a> to continue.</body></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])),
 						("%[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)
 					)
 					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
 if __name__=="__main__":
 	main()
--- a/owrx/aprs.py
+++ b/owrx/aprs.py
@ -1,577 +0,0 @@
 from owrx.kiss import KissDeframer
 from owrx.map import Map, LatLngLocation
 from owrx.bands import Bandplan
 from owrx.metrics import Metrics, CounterMetric
 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(object):
    def __init__(self, handler):
        self.ax25parser = Ax25Parser()
        self.deframer = KissDeframer()
        self.dial_freq = None
        self.band = None
        self.handler = handler
        self.metric = self.getMetric()
    def setDialFrequency(self, freq):
        self.dial_freq = freq
        self.band = Bandplan.getSharedInstance().findBand(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])),
        }
--- a/owrx/bands.py
+++ b/owrx/bands.py
@ -1,65 +0,0 @@
 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):
        f = open("bands.json", "r")
        bands_json = json.load(f)
        f.close()
        self.bands = [Band(d) for d in bands_json]
    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)]
--- a/owrx/bookmarks.py
+++ b/owrx/bookmarks.py
@ -1,43 +0,0 @@
 import json
 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):
        f = open("bookmarks.json", "r")
        bookmarks_json = json.load(f)
        f.close()
        self.bookmarks = [Bookmark(d) for d in bookmarks_json]
    def getBookmarks(self, range):
        (lo, hi) = range
        return [b for b in self.bookmarks if lo <= b.getFrequency() <= hi]
--- a/owrx/config.py
+++ b/owrx/config.py
@ -1,137 +0,0 @@
 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 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, filename):
        cfg = __import__(filename)
        for name, value in cfg.__dict__.items():
            if name.startswith("__"):
                continue
            self[name] = value
        return self
--- a/owrx/connection.py
+++ b/owrx/connection.py
@ -1,340 +0,0 @@
 from owrx.config import PropertyManager
 from owrx.source import DspManager, CpuUsageThread, SdrService, ClientRegistry
 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
 import json
 import threading
 import logging
 logger = logging.getLogger(__name__)
 class Client(object):
    def __init__(self, conn):
        self.conn = conn
        self.multiprocessingPipe = Queue()
        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):
        self.multiprocessingPipe.put(data, block=False)
    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",
        "lfo_offset",
        "samp_rate",
        "fft_size",
        "fft_fps",
        "audio_compression",
        "fft_compression",
        "max_clients",
        "start_mod",
        "start_freq",
        "center_freq",
        "mathbox_waterfall_colors",
        "mathbox_waterfall_history_length",
        "mathbox_waterfall_frequency_resolution",
    ]
    def __init__(self, conn):
        super().__init__(conn)
        self.dsp = None
        self.sdr = None
        self.configSub = None
        ClientRegistry.getSharedInstance().addClient(self)
        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)
        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)
        features = FeatureDetector().feature_availability()
        self.write_features(features)
        CpuUsageThread.getSharedInstance().add_client(self)
    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)
                if message["type"] == "config":
                    if "params" in message:
                        self.setParams(message["params"])
                if message["type"] == "setsdr":
                    if "params" in message:
                        self.setSdr(message["params"]["sdr"])
                if 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])
            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):
        next = SdrService.getSource(id)
        if next is None:
            self.handleSdrFailure("sdr device failed")
            return
        if next == self.sdr:
            return
        self.stopDsp()
        if self.configSub is not None:
            self.configSub.cancel()
            self.configSub = None
        self.sdr = next
        self.startDsp()
        # send initial config
        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 that only works because setting the profile always causes plenty of config change
            config["profile_id"] = self.sdr.getId() + "|" + self.sdr.getProfileId()
            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.sdr.addSpectrumClient(self)
    def handleSdrFailure(self, message):
        self.write_sdr_error(message)
    def startDsp(self):
        if self.dsp is 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", "if_gain")
            .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')
        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_sdr_error(self, message):
        self.send({"type": "sdr_error", "value": message})
 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
--- a/owrx/controllers.py
+++ b/owrx/controllers.py
@ -1,155 +0,0 @@
 import os
 import mimetypes
 import json
 from datetime import datetime
 from string import Template
 from owrx.websocket import WebSocketConnection
 from owrx.config import PropertyManager
 from owrx.source 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 __init__(self, handler, request, path):
        if not path.endswith("/"):
            path += "/"
        self.path = path
        super().__init__(handler, request)
    def serve_file(self, file, content_type=None):
        try:
            modified = datetime.fromtimestamp(os.path.getmtime(self.path + file))
            if "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 = open(self.path + file, "rb")
            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 __init__(self, handler, request):
        super().__init__(handler, request, "htdocs/")
 class AprsSymbolsController(AssetsController):
    def __init__(self, handler, request):
        pm = PropertyManager.getSharedInstance()
        super().__init__(handler, request, pm["aprs_symbols_path"])
 class TemplateController(Controller):
    def render_template(self, file, **vars):
        f = open("htdocs/" + file, "r", encoding="utf-8")
        template = Template(f.read())
        f.close()
        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()
--- a/owrx/feature.py
+++ b/owrx/feature.py
@ -1,219 +0,0 @@
 import os
 import subprocess
 from functools import reduce
 from operator import and_
 import re
 from distutils.version import LooseVersion
 import inspect
 import logging
 logger = logging.getLogger(__name__)
 class UnknownFeatureException(Exception):
    pass
 class FeatureDetector(object):
    features = {
        "core": ["csdr", "nmux", "nc"],
        "rtl_sdr": ["rtl_sdr"],
        "sdrplay": ["rx_tools"],
        "hackrf": ["hackrf_transfer"],
        "airspy": ["airspy_rx"],
        "digital_voice_digiham": ["digiham", "sox"],
        "digital_voice_dsd": ["dsd", "sox", "digiham"],
        "wsjt-x": ["wsjtx", "sox"],
        "packet": ["direwolf"],
    }
    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):
        return os.system("{0} 2>/dev/null >/dev/null".format(command)) != 32512
    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_rx_tools(self):
        """
        The rx_tools package can be used to interface with SDR devices compatible with SoapySDR. It is currently used
        to connect to SDRPlay devices. Please check the following pages for more details:
        * [rx_tools GitHub page](https://github.com/rxseger/rx_tools)
        * [SoapySDR Project wiki](https://github.com/pothosware/SoapySDR/wiki)
        * [SDRPlay homepage](https://www.sdrplay.com/)
        """
        return self.command_is_runnable("rx_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 command_exists(self, command):
        return os.system("which {0}".format(command)) == 0
    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 0.2 of digiham.
        """
        required_version = LooseVersion("0.2")
        digiham_version_regex = re.compile("^digiham version (.*)$")
        def check_digiham_version(command):
            try:
                process = subprocess.Popen([command, "--version"], stdout=subprocess.PIPE)
                version = LooseVersion(digiham_version_regex.match(process.stdout.readline().decode()).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",
                ],
            ),
            True,
        )
    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):
        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 2> /dev/null")
    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)
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
ha7ilm	06054b1291	backported max_clients	2015-05-21 21:13:30 +02:00
ha7ilm	7ecab27d56	backported max_clients	2015-05-21 21:09:35 +02:00
ha7ilm	d04e9180d2	backported bugfixes	2015-05-16 18:09:37 +02:00