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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.process import wspbus, plugins
from cherrypy.lib.httputil import parse_query_string
import urllib
import os
import io
import datetime
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 API(plugins.SimplePlugin):
def __init__(self, mod_rc, bus):
plugins.SimplePlugin.__init__(self, bus)
self.mod_rc = mod_rc
self.dpd_state = None
self.calibration_result = None
def start(self):
self.bus.subscribe("dpd-state", self.dpd_state)
self.bus.subscribe("dpd-calibration-result", self.calibration_result)
def stop(self):
self.bus.unsubscribe("dpd-state", self.dpd_state)
self.bus.unsubscribe("dpd-calibration-result", self.calibration_result)
def calibration_result(self, new_result):
self.calibration_result = new_result
def dpd_state(self, new_state):
self.dpd_state = new_state
@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)
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':
cherrypy.engine.publish('dpd-capture', None)
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 dpd_calibrate(self, **kwargs):
if cherrypy.request.method == 'POST':
cherrypy.engine.publish('dpd-calibrate', None)
return send_ok()
else:
if self.dpd_state is not None:
return send_ok(self.calibration_result)
else:
return send_error("DPD calibration result unknown")
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