openwebrx-clone/owrx/controllers.py

115 lines
4.3 KiB
Python

import mimetypes
from owrx.websocket import WebSocketConnection
from owrx.config import PropertyManager
from owrx.source import SpectrumThread
import csdr
import json
class Controller(object):
def __init__(self, handler, matches):
self.handler = handler
self.matches = matches
def send_response(self, content, code = 200, content_type = "text/html"):
self.handler.send_response(code)
if content_type is not None:
self.handler.send_header("Content-Type", content_type)
self.handler.end_headers()
if (type(content) == str):
content = content.encode()
self.handler.wfile.write(content)
def render_template(self, template, **variables):
f = open('htdocs/' + template)
data = f.read()
f.close()
self.send_response(data)
class StatusController(Controller):
def handle_request(self):
self.send_response("you have reached the status page!")
class IndexController(Controller):
def handle_request(self):
self.render_template("index.wrx")
class AssetsController(Controller):
def serve_file(self, file):
try:
f = open('htdocs/' + file, 'rb')
data = f.read()
f.close()
(content_type, encoding) = mimetypes.MimeTypes().guess_type(file)
self.send_response(data, content_type = content_type)
except FileNotFoundError:
self.send_response("file not found", code = 404)
def handle_request(self):
filename = self.matches.group(1)
self.serve_file(filename)
class SpectrumForwarder(object):
def __init__(self, conn):
self.conn = conn
def write_spectrum_data(self, data):
self.conn.send(bytes([0x01]) + data)
class WebSocketMessageHandler(object):
def __init__(self):
self.forwarder = None
def handleTextMessage(self, conn, message):
if (message[:16] == "SERVER DE CLIENT"):
config = {}
pm = PropertyManager.getSharedInstance()
for key in ["waterfall_colors", "waterfall_min_level", "waterfall_max_level", "waterfall_auto_level_margin",
"shown_center_freq", "samp_rate", "fft_size", "fft_fps", "audio_compression", "fft_compression",
"max_clients", "start_mod"]:
config[key] = pm.getPropertyValue(key)
config["start_offset_freq"] = pm.getPropertyValue("start_freq") - pm.getPropertyValue("center_freq")
conn.send({"type":"config","value":config})
print("client connection intitialized")
dsp = self.dsp = csdr.dsp()
dsp_initialized=False
dsp.set_audio_compression(pm.getPropertyValue("audio_compression"))
dsp.set_fft_compression(pm.getPropertyValue("fft_compression")) #used by secondary chains
dsp.set_format_conversion(pm.getPropertyValue("format_conversion"))
dsp.set_offset_freq(0)
dsp.set_bpf(-4000,4000)
dsp.set_secondary_fft_size(pm.getPropertyValue("digimodes_fft_size"))
dsp.nc_port=pm.getPropertyValue("iq_server_port")
dsp.csdr_dynamic_bufsize = pm.getPropertyValue("csdr_dynamic_bufsize")
dsp.csdr_print_bufsizes = pm.getPropertyValue("csdr_print_bufsizes")
dsp.csdr_through = pm.getPropertyValue("csdr_through")
do_secondary_demod=False
self.forwarder = SpectrumForwarder(conn)
SpectrumThread.getSharedInstance().add_client(self.forwarder)
else:
try:
message = json.loads(message)
if message["type"] == "start":
self.dsp.set_samp_rate(message["params"]["output_rate"])
self.dsp.start()
except json.JSONDecodeError:
print("message is not json: {0}".format(message))
def handleBinaryMessage(self, conn, data):
print("unsupported binary message, discarding")
def handleClose(self, conn):
if self.forwarder:
SpectrumThread.getSharedInstance().remove_client(self.forwarder)
class WebSocketController(Controller):
def handle_request(self):
conn = WebSocketConnection(self.handler, WebSocketMessageHandler())
conn.send("CLIENT DE SERVER openwebrx.py")
# enter read loop
conn.read_loop()