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# -*- coding: utf-8 -*-
#
# Copyright (C) 2018
# Matthias P. Braendli, matthias.braendli@mpb.li
#
# http://www.opendigitalradio.org
#
# This file is part of ODR-DabMod.
#
# ODR-DabMod 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.
#
# ODR-DabMod 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 ODR-DabMod. If not, see <http://www.gnu.org/licenses/>.
import cherrypy
from cherrypy.lib.httputil import parse_query_string
import json
import urllib
import os
import io
import datetime
import threading
def send_ok(data=None):
if data is not None:
return {'status' : 'ok', 'data': data}
else:
return {'status': 'ok'}
def send_error(reason=""):
if reason:
return {'status' : 'error', 'reason': reason}
else:
return {'status' : 'error'}
class RXThread(threading.Thread):
def __init__(self, api):
super(RXThread, self).__init__()
self.api = api
self.running = False
self.daemon = True
def cancel(self):
self.running = False
def run(self):
self.running = True
while self.running:
if self.api.dpd_pipe.poll(1):
rx = self.api.dpd_pipe.recv()
if rx['cmd'] == "quit":
break
elif rx['cmd'] == "dpd-state":
self.api.dpd_state = rx['data']
elif rx['cmd'] == "dpd-calibration-result":
self.api.calibration_result = rx['data']
class API:
def __init__(self, mod_rc, dpd_pipe):
self.mod_rc = mod_rc
self.dpd_pipe = dpd_pipe
self.dpd_state = None
self.calibration_result = None
self.receive_thread = RXThread(self)
self.receive_thread.start()
@cherrypy.expose
def index(self):
return """This is the api area."""
@cherrypy.expose
@cherrypy.tools.json_out()
def rc_parameters(self):
return send_ok(self.mod_rc.get_modules())
@cherrypy.expose
@cherrypy.tools.json_out()
def parameter(self, **kwargs):
if cherrypy.request.method == 'POST':
cl = cherrypy.request.headers['Content-Length']
rawbody = cherrypy.request.body.read(int(cl))
params = json.loads(rawbody.decode())
try:
self.mod_rc.set_param_value(params['controllable'], params['param'], params['value'])
except ValueError as e:
cherrypy.response.status = 400
return send_error(str(e))
return send_ok()
else:
cherrypy.response.status = 400
return send_error("POST only")
@cherrypy.expose
@cherrypy.tools.json_out()
def trigger_capture(self, **kwargs):
if cherrypy.request.method == 'POST':
self.dpd_pipe.send({'cmd': "dpd-capture"})
return send_ok()
else:
cherrypy.response.status = 400
return send_error("POST only")
@cherrypy.expose
@cherrypy.tools.json_out()
def dpd_status(self, **kwargs):
if self.dpd_state is not None:
return send_ok(self.dpd_state)
else:
return send_error("DPD state unknown")
@cherrypy.expose
@cherrypy.tools.json_out()
def calibrate(self, **kwargs):
if cherrypy.request.method == 'POST':
self.dpd_pipe.send({'cmd': "dpd-calibrate"})
return send_ok()
else:
if self.calibration_result is not None:
return send_ok(self.calibration_result)
else:
return send_error("DPD calibration result unknown")
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