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# -*- coding: utf-8 -*-
#
# Copyright (C) 2019
# 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
from lib import yamlrpc
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 API:
def __init__(self, mod_rc, dpd_port):
self.mod_rc = mod_rc
self.dpd_port = dpd_port
self.dpd_rpc = yamlrpc.Socket(bind_port=0)
@cherrypy.expose
def index(self):
return """This is the api area."""
@cherrypy.expose
@cherrypy.tools.json_out()
def rc_parameters(self):
try:
return send_ok(self.mod_rc.get_modules())
except IOError as e:
return send_error(str(e))
@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 IOError as e:
cherrypy.response.status = 503
return send_error(str(e))
except ValueError as e:
cherrypy.response.status = 503
return send_error(str(e))
return send_ok()
else:
if all(p in kwargs for p in ('controllable', 'param')):
try:
return send_ok(self.mod_rc.get_param_value(kwargs['controllable'], kwargs['param']))
except IOError as e:
cherrypy.response.status = 503
return send_error(str(e))
except ValueError as e:
cherrypy.response.status = 503
return send_error(str(e))
else:
cherrypy.response.status = 400
return send_error("missing 'controllable' or 'param' GET parameters")
def _wrap_dpd(self, method, data=None):
try:
reply = self.dpd_rpc.call_rpc_method(self.dpd_port, method, data)
return send_ok(reply)
except ValueError as e:
cherrypy.response.status = 503
return send_error("DPDCE remote procedure call error: {}".format(e))
except TimeoutError as e:
cherrypy.response.status = 503
return send_error("DPDCE remote procedure call timed out")
cherrypy.response.status = 500
return send_error("Unknown DPDCE remote procedure error error")
@cherrypy.expose
@cherrypy.tools.json_out()
def dpd_trigger_run(self, **kwargs):
if cherrypy.request.method == 'POST':
return self._wrap_dpd("trigger_run")
else:
cherrypy.response.status = 400
return send_error("POST only")
@cherrypy.expose
@cherrypy.tools.json_out()
def dpd_adapt(self, **kwargs):
if cherrypy.request.method == 'POST':
return self._wrap_dpd("adapt")
else:
cherrypy.response.status = 400
return send_error("POST only")
@cherrypy.expose
@cherrypy.tools.json_out()
def dpd_reset(self, **kwargs):
if cherrypy.request.method == 'POST':
return self._wrap_dpd("reset")
else:
cherrypy.response.status = 400
return send_error("POST only")
@cherrypy.expose
@cherrypy.tools.json_out()
def dpd_restore_dump(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())
if 'dump_id' in params:
data = {'dump_id': params['dump_id']}
return self._wrap_dpd("restore_dump", data)
else:
cherrypy.response.status = 400
return send_error("Missing dump_id")
else:
cherrypy.response.status = 400
return send_error("POST only")
@cherrypy.expose
@cherrypy.tools.json_out()
def dpd_results(self, **kwargs):
return self._wrap_dpd("get_results")
@cherrypy.expose
@cherrypy.tools.json_out()
def dpd_calibrate(self, **kwargs):
if cherrypy.request.method == 'POST':
return self._wrap_dpd("calibrate")
else:
cherrypy.response.status = 400
return send_error("POST only")
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