libraries/exceptions/exception_logger.py

+#
+#  engine
+#
+#  Playout Daemon for autoradio project
+#
+#
+#  Copyright (C) 2017-2018 Gottfried Gaisbauer <gottfried.gaisbauer@servus.at>
+#
+#  This file is part of engine.
+#
+#  engine 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
+#  any later version.
+#
+#  engine 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 engine. If not, see <http://www.gnu.org/licenses/>.
+#
+
+import simplejson
+import logging
+
+
+class ExceptionLogger:
+    logger = None
+    error_data = None
+    job_result = None
+
+    def __init__(self):
+        self.logger = logging.getLogger("AuraEngine")
+
+    # ------------------------------------------------------------------------------------------ #
+    def __get_error__(self, job, errornumber, data):
+        """
+        Privat: Ermittelt Fehlermeldung, Job-Name (Klassenmethode) und Fehlercode für den Job aus error/controller_error.js
+        @type errornumber:  string
+        @param errornumber: Die interne Fehlernummer der aufrufenden Methode
+        """
+
+        if data is None:
+            data = {}
+        if type(data) == type(str()):
+            data = simplejson.loads(data)
+
+        has_data = isinstance(data, (dict)) and len(data) > 0
+
+        if job in self.error_data:
+            err_msg = self.error_data[job][errornumber]
+            err_id = self.error_data[job]['id'] + str(errornumber)
+            if has_data:
+                for key in data.keys():
+                    err_msg = err_msg.replace('::' + key + '::', str(data[key]))
+            data['message'] = err_msg
+            data['job'] = job
+            data['code'] = err_id
+
+        return data
+
+    # ------------------------------------------------------------------------------------------ #
+    def success(self, job, data=None, errnum='00', value=''):
+        """
+        Erfolgsmeldung loggen
+        @type errnum:    string
+        @param errnum:   Errornummer der aufrufenden Funktion
+        @type value:     string
+        @param value:    Optionaler Wert
+        @type section:   string
+        @param section:  Gültigkeitsbereich
+        """
+        error = self.__get_error__(job, errnum, data)
+        self.job_result = {'message': error['message'],
+                           'code': error['code'],
+                           'success': 'success',
+                           'job': error['job'],
+                           'value': value}
+        self.logger.debug(job + " successfully done " + str(self.job_result))
+
+    # ------------------------------------------------------------------------------------------ #
+    def info(self, job, data=None, errnum='01', value=''):
+        """
+        Info loggen
+        @type errnum:    string
+        @param errnum:   Errornummer der aufrufenden Funktion
+        @type value:     string
+        @param value:    Optionaler Wert
+        @type section:   string
+        @param section:  Gültigkeitsbereich
+        """
+        error = self.__get_error__(job, errnum, data)
+        self.job_result = {'message': error['message'],
+                           'code': error['code'],
+                           'success': 'info',
+                           'job': error['job'],
+                           'value': value}
+        self.logger.info(str(self.job_result))
+
+
+    # ------------------------------------------------------------------------------------------ #
+    def warning(self, job, data=None, errnum='01', value=''):
+        """
+        Warnung loggen
+        @type errnum:    string
+        @param errnum:   Errornummer der aufrufenden Funktion
+        @type value:     string
+        @param value:    Optionaler Wert
+        """
+        error = self.__get_error__(job, errnum, data)
+        self.job_result = {'message': error['message'],
+                           'code': error['code'],
+                           'success': 'warning',
+                           'job': error['job'],
+                           'value': value}
+        self.logger.warning(str(self.job_result))
+
+    # ------------------------------------------------------------------------------------------ #
+    def error(self, job, data=None, errnum='01', value=''):
+        """
+        Error loggen
+        @type errnum:    string
+        @param errnum:   Errornummer der aufrufenden Funktion
+        @type value:     string
+        @param value:    Optionaler Wert
+        """
+        error = self.__get_error__(job, errnum, data)
+        self.job_result = {'message': error['message'],
+                           'code': error['code'],
+                           'success': 'error',
+                           'job': error['job'],
+                           'value': value}
+        self.logger.error(str(self.job_result))
+
+    # ------------------------------------------------------------------------------------------ #
+    def fatal(self, job, data=None, errnum='01', value='', section='execjob'):
+        """
+        Fatal error loggen
+        @type errnum:    string
+        @param errnum:   Errornummer der aufrufenden Funktion
+        @type value:     string
+        @param value:    Optionaler Wert
+        @type section:   string
+        @param section:  Gültigkeitsbereich
+        """
+        error = self.__get_error__(job, errnum, data)
+        self.job_result = {'message': error['message'],
+                           'code': error['code'],
+                           'success': 'fatal',
+                           'job': error['job'],
+                           'value': value,
+                           'section': section}
+        self.logger.critical(str(self.job_result))
\ No newline at end of file

modules/base/config.py

+#
+#  engine
+#
+#  Playout Daemon for autoradio project
+#
+#  Copyright 2014 BFR <info@freie-radios.de>
+#  Copyright (C) 2017-2018 Gottfried Gaisbauer <gottfried.gaisbauer@servus.at>
+#
+#  This program 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; Version 3 of the License
+#
+#  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 General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, the license can be downloaded here:
+#
+#  http://www.gnu.org/licenses/gpl.html
+
+# Meta
+__version__ = '0.1.1'
+__license__ = "GNU General Public License (GPL) Version 3"
+__version_info__ = (0, 1, 1)
+__author__ = 'Michael Liebler <michael-liebler@radio-z.net>'
+
+# massively enhanced by Gottfried Gaisbauer <gottfried.gaisbauer@servus.at>
+
+"""
+Comba Base Class  - lade Config
+"""
+import os
+import sys
+import socket
+import logging
+
+from configparser import ConfigParser
+
+
+class ConfigReader(object):
+    ini_path = ""
+    logger = None
+
+    def __init__(self):
+        self.logger = logging.getLogger("AuraEngine")
+
+    def set(self, key, value):
+        """
+        Set a property
+        @type    key: string
+        @param   key: The Key
+        @type    value: mixed
+        @param   value: Beliebiger Wert
+        """
+        try:
+            self.__dict__[key] = int(value)
+        except:
+            self.__dict__[key] = str(value)
+
+    # ------------------------------------------------------------------------------------------ #
+    def get(self, key, default=None):
+        """
+        get a loaded property
+        @type    key: string
+        @param   key: Der Key
+        @type    default: mixed
+        @param   default: Beliebiger Wert
+        """
+
+        if key not in self.__dict__:
+            if default:
+                self.set(key, default)
+            else:
+                self.logger.warning("Key " + key + " not found in configfile " + self.ini_path + "!")
+                return None
+
+        if key == "loglevel":
+            loglvl = self.__dict__[key]
+
+            if loglvl == "debug":
+                return logging.DEBUG
+            elif loglvl == "info":
+                return logging.INFO
+            elif loglvl == "warning":
+                return logging.WARNING
+            elif loglvl == "error":
+                return logging.ERROR
+            else:
+                return logging.CRITICAL
+
+        if key == "debug":
+            return self.__dict__[key].count("y")
+
+        return self.__dict__[key]
+
+    # ------------------------------------------------------------------------------------------ #
+    def load_config(self):
+        """
+        Set config defaults and load settings from file
+        :return:
+        """
+        self.ini_path = self.get('configpath', '/etc/aura/engine.ini')
+
+        if not os.path.isfile(self.ini_path):
+            self.logger.critical(self.ini_path + " not found  :(")
+            sys.exit(1)
+
+        # INI einlesen
+        f = open(self.ini_path, 'r')
+        ini_str = f.read()
+        f.close()
+
+        config_parser = ConfigParser()
+        try:
+            config_parser.read_string(ini_str)
+        except Exception as e:
+            self.logger.critical("Cannot read " + self.ini_path + "! Reason: " + str(e))
+            sys.exit(0)
+
+        for section in config_parser.sections():
+            for key, value in config_parser.items(section):
+                v = config_parser.get(section, key).replace('"', '').strip()
+                self.set(key, v)
+
+        self.set("install_dir", os.path.realpath(__file__ + "../../../.."))
+
+

modules/cli_tool/padavan.py

+#
+#  engine
+#
+#  Playout Daemon for autoradio project
+#
+#
+#  Copyright (C) 2017-2018 Gottfried Gaisbauer <gottfried.gaisbauer@servus.at>
+#
+#  This file is part of engine.
+#
+#  engine 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
+#  any later version.
+#
+#  engine 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 engine. If not, see <http://www.gnu.org/licenses/>.
+#
+
+import simplejson
+
+from libraries.enum.auraenumerations import RedisChannel, TerminalColors
+from modules.communication.redis.adapter import ClientRedisAdapter, ServerRedisAdapter
+from modules.communication.redis.messenger import RedisMessenger
+from libraries.database.broadcasts import AuraDatabaseModel
+
+
+class Padavan:
+    args = None
+    config = None
+
+    lsc = None
+    zmqclient = None
+    redisclient = None
+    stringreply = ""
+
+    # ------------------------------------------------------------------------------------------ #
+    def __init__(self, args, config):
+        self.args = args
+        self.config = config
+
+    # ------------------------------------------------------------------------------------------ #
+    def meditate(self):
+        if self.args.fetch_new_programme:
+            self.fetch_new_programme()
+
+        elif self.args.get_active_mixer:
+            self.get_active_mixer()
+
+        elif self.args.get_mixer_status:
+            self.get_mixer_status()
+
+        elif self.args.get_act_programme:
+            self.get_act_programme()
+
+        elif self.args.get_connection_status:
+            self.get_connection_status()
+
+        elif self.args.shutdown:
+            self.shutdown()
+
+        elif self.args.redis_message:
+            self.redis_message(self.args.redis_message[0], self.args.redis_message[1])
+
+        elif self.args.select_mixer != -1:
+            self.select_mixer(self.args.select_mixer)
+
+        elif self.args.deselect_mixer != -1:
+            self.select_mixer(self.args.deselect_mixer, False)
+
+        elif self.args.set_volume:
+            self.set_volume(self.args.set_volume[0], self.args.set_volume[1])
+
+        elif self.args.swap_playlist_entries:
+            self.swap_playlist_entries(self.args.swap_playlist_entries[0], self.args.swap_playlist_entries[1])
+
+        elif self.args.delete_playlist_entry:
+            self.delete_playlist_entry(self.args.delete_playlist_entry[0])
+
+        elif self.args.insert_playlist_entry:
+            self.insert_playlist_entry(self.args.insert_playlist_entry[0], self.args.insert_playlist_entry[1]) #, self.args.insert_playlist_entry[2])
+
+        elif self.args.print_message_queue:
+            self.print_message_queue()
+
+        elif self.args.get_file_for:
+            self.get_next_file(self.args.get_file_for)
+
+        elif self.args.set_file_for:
+            self.set_next_file(self.args.set_file_for[0], self.args.set_file_for[1])
+
+        elif self.args.now_playing:
+            print("")
+
+        elif self.args.init_player:
+            self.init_player()
+
+        elif self.args.recreatedb:
+            self.recreatedb()
+
+        # else:
+        #    raise Exception("")
+
+    # init liquid => faster exec time, when loading at runtime just what is needed
+    def init_liquidsoap_communication(self):
+        # import
+        from modules.communication.liquidsoap.communicator import LiquidSoapCommunicator
+
+        # init liquidsoap communication
+        self.lsc = LiquidSoapCommunicator(self.config)
+        # enable connection
+        self.lsc.enable_transaction()
+
+    def destroy_liquidsoap_communication(self):
+        # enable connection
+        self.lsc.disable_transaction()
+
+    def init_redis_communication(self, with_server=False):
+        self.redisclient = ClientRedisAdapter()
+
+        if with_server:
+            self.redisserver = ServerRedisAdapter()
+
+    def send_redis(self, channel, message):
+        self.init_redis_communication()
+        self.redisclient.publish(channel, message)
+
+    def send_and_wait_redis(self, channel, message, reply_channel):
+        self.init_redis_communication(True)
+        self.redisclient.publish(channel, message)
+        return self.redisserver.listen_for_one_message(reply_channel.value)
+
+    def shutdown(self):
+        self.send_redis("aura", "shutdown")
+        self.stringreply = "Shutdown message sent!"
+
+    def fetch_new_programme(self):
+        json_reply = self.send_and_wait_redis("aura", "fetch_new_programme", RedisChannel.FNP_REPLY)
+        if json_reply != "":
+            actprogramme = simplejson.loads(json_reply)
+            self.print_programme(actprogramme)
+        else:
+            print("No programme fetched")
+
+    def get_act_programme(self):
+        json_reply = self.send_and_wait_redis("aura", "get_act_programme", RedisChannel.GAP_REPLY)
+        actprogramme = simplejson.loads(json_reply)
+        self.print_programme(actprogramme)
+
+    def get_connection_status(self):
+        json_reply = self.send_and_wait_redis("aura", "get_connection_status", RedisChannel.GCS_REPLY)
+        connection_status = simplejson.loads(json_reply)
+        self.print_connection_status(connection_status)
+
+    def print_programme(self, programme):
+        for entry in programme:
+            self.stringreply += "idx: " + str(entry["programme_index"]) + \
+                " --- schedule id #" + str(entry["schedule_id"]) + "." + str(entry["entry_num"]) + \
+                " - show: " + entry["schedule"]["show_name"] + \
+                " - starts @ " + entry["entry_start"] + \
+                " - plays " + str(entry["source"]) + "\n"
+
+    def print_connection_status(self, connection_status):
+
+        if connection_status["pv"]:
+            self.stringreply = "Connection to pv:    " + TerminalColors.GREEN.value + " " + str(connection_status["pv"]) + TerminalColors.ENDC.value
+        else:
+            self.stringreply = "Connection to pv:    " + TerminalColors.RED.value + " " + str(connection_status["pv"]) + TerminalColors.ENDC.value
+
+        if connection_status["db"]:
+            self.stringreply += "\nConnection to db:    " + TerminalColors.GREEN.value + " " + str(connection_status["db"]) + TerminalColors.ENDC.value
+        else:
+            self.stringreply += "\nConnection to db:    " + TerminalColors.RED.value + " " + str(connection_status["db"]) + TerminalColors.ENDC.value
+
+        if connection_status["lqs"]:
+            self.stringreply += "\nConnection to lqs:   " + TerminalColors.GREEN.value + " " + str(connection_status["lqs"]) + TerminalColors.ENDC.value
+        else:
+            self.stringreply += "\nConnection to lqs:   " + TerminalColors.RED.value + " " + str(connection_status["lqs"]) + TerminalColors.ENDC.value
+
+        if connection_status["lqsr"]:
+            self.stringreply += "\nConnection to lqsr:  " + TerminalColors.GREEN.value + " " + str(connection_status["lqsr"]) + TerminalColors.ENDC.value
+        else:
+            self.stringreply += "\nConnection to lqsr:  " + TerminalColors.RED.value + " " + str(connection_status["lqsr"]) + TerminalColors.ENDC.value
+
+        if connection_status["tank"]:
+            self.stringreply += "\nConnection to tank:  " + TerminalColors.GREEN.value + " " + str(connection_status["tank"]) + TerminalColors.ENDC.value
+        else:
+            self.stringreply += "\nConnection to tank:  " + TerminalColors.RED.value + " " + str(connection_status["tank"]) + TerminalColors.ENDC.value
+
+        if connection_status["redis"]:
+            self.stringreply += "\nConnection to redis: " + TerminalColors.GREEN.value + " " + str(connection_status["redis"]) + TerminalColors.ENDC.value
+        else:
+            self.stringreply += "\nConnection to redis: " + TerminalColors.RED.value + " " + str(connection_status["redis"]) + TerminalColors.ENDC.value
+
+
+
+    def init_player(self):
+        self.stringreply = self.send_and_wait_redis("aura", "init_player", RedisChannel.IP_REPLY)
+
+    def recreatedb(self):
+        print("YOU WILL GET PROBLEMS DUE TO DATABASE BLOCKING IF aura.py IS RUNNING! NO CHECKS IMPLEMENTED SO FAR!")
+        x = AuraDatabaseModel()
+        x.recreate_db()
+        self.stringreply = "Database recreated!"
+
+    def redis_message(self, channel, message):
+        self.send_redis(channel, message)
+        self.stringreply = "Message '"+message+"' sent to channel '"+channel+"'"
+
+    def swap_playlist_entries(self, from_index, to_index):
+        json_reply = self.send_and_wait_redis("aura", "swap_playlist_entries " + str(from_index) + " " + str(to_index), RedisChannel.MPE_REPLY)
+        actprogramme = simplejson.loads(json_reply)
+        self.print_programme(actprogramme)
+
+    def delete_playlist_entry(self, index):
+        json_reply = self.send_and_wait_redis("aura", "delete_playlist_entry " + str(index), RedisChannel.DPE_REPLY)
+        actprogramme = simplejson.loads(json_reply)
+        self.print_programme(actprogramme)
+
+    def insert_playlist_entry(self, fromtime, source):
+        json_reply = self.send_and_wait_redis("aura", "insert_playlist_entry " + fromtime + " " + source, RedisChannel.IPE_REPLY)
+        actprogramme = simplejson.loads(json_reply)
+        self.print_programme(actprogramme)
+
+    def print_message_queue(self):
+        self.stringreply = self.send_and_wait_redis("aura", "print_message_queue", RedisChannel.PMQ_REPLY)
+
+    # LIQUIDSOAP #
+    def select_mixer(self, mixername, activate=True):
+        # init lqs
+        self.init_liquidsoap_communication()
+
+        # select mixer and return the feedback
+        self.stringreply = self.lsc.channel_activate(mixername, activate)
+
+        # disable connection
+        self.destroy_liquidsoap_communication()
+
+    def set_volume(self, mixernumber, volume):
+        # init lqs and enable comm
+        self.init_liquidsoap_communication()
+        self.stringreply = self.lsc.set_volume(mixernumber, volume)
+        # disable connection
+        self.destroy_liquidsoap_communication()
+
+    def get_active_mixer(self):
+        self.init_liquidsoap_communication()
+        am = self.lsc.get_active_mixer()
+
+        if len(am) == 0:
+            self.destroy_liquidsoap_communication()
+            raise Exception("Guru recognized a problem: No active source!!!")
+
+        self.stringreply = str(am)
+
+        # disable connection
+        self.destroy_liquidsoap_communication()
+
+    def get_mixer_status(self):
+        self.init_liquidsoap_communication()
+
+        status = self.lsc.get_mixer_status()
+
+        for k, v in status.items():
+            self.stringreply += "source: " + k + "\t status: " + v + "\n"
+
+        # disable connection
+        self.destroy_liquidsoap_communication()
+
+    # REDIS #
+    def get_next_file(self, type):
+        redis = RedisMessenger()
+
+        next_file = redis.get_next_file_for(type)
+        # "annotate:file_id='3541',length='400.0',title='Titel',artist='Artist',album='Album',canal='reggae':" +
+        #print(next_file)
+        if next_file == "":
+            next_file = "/var/audio/blank.flac"
+
+        #print("stringreply: "+next_file)
+        self.stringreply = next_file
+
+        self.send_redis("aura", "set_next_file " + type)
+
+    def set_next_file(self, type, file):
+        from modules.communication.redis.messenger import RedisMessenger
+        redis = RedisMessenger()
+
+        redis.set_next_file_for(type, file)
+        self.stringreply = "Set "+file+" for fallback '"+type+"'"

modules/communication/connection_tester.py

+#
+#  engine
+#
+#  Playout Daemon for autoradio project
+#
+#
+#  Copyright (C) 2017-2018 Gottfried Gaisbauer <gottfried.gaisbauer@servus.at>
+#
+#  This file is part of engine.
+#
+#  engine 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
+#  any later version.
+#
+#  engine 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 engine. If not, see <http://www.gnu.org/licenses/>.
+#
+
+import urllib
+import logging
+import simplejson
+
+from modules.communication.liquidsoap.communicator import LiquidSoapCommunicator
+from libraries.database.broadcasts import ScheduleEntry
+from libraries.base.config import AuraConfig
+
+
+class ConnectionTester(AuraConfig):
+
+    def __init__(self):
+        super(ConnectionTester, self).__init__()
+
+    def get_connection_status(self):
+        status = dict()
+        status["db"] = self.test_db_conn()
+        status["pv"] = self.test_pv_conn()
+        status["lqs"] = self.test_lqs_conn()
+        status["lqsr"] = False # self.test_lqsr_conn()
+        status["tank"] = self.test_tank_conn()
+        status["redis"] = self.test_redis_conn()
+
+        return simplejson.dumps(status)
+
+    def test_db_conn(self):
+        try:
+            ScheduleEntry.select_all()
+        except:
+            return False
+
+        return True
+
+    def test_lqs_conn(self):
+        try:
+            lsc = LiquidSoapCommunicator(self.config)
+            lsc.get_mixer_status()
+            return True
+
+        except Exception as e:
+            return False
+
+    def test_lqsr_conn(self):
+        try:
+            lsc = LiquidSoapCommunicator(self.config)
+            lsc.get_recorder_status()
+            return True
+
+        except Exception as e:
+            return False
+
+    def test_pv_conn(self):
+        return self.test_url_connection(self.config.get("calendarurl"))
+
+    def test_tank_conn(self):
+        # test load of playlist 1
+        return self.test_url_connection(self.config.get("importerurl")+"1")
+
+    def test_redis_conn(self):
+        from modules.communication.redis.adapter import ClientRedisAdapter
+        try:
+            cra = ClientRedisAdapter()
+            cra.publish("aura", "status")
+        except:
+            return False
+
+        return True
+
+    def test_url_connection(self, url):
+        try:
+            request = urllib.request.Request(url)
+            response = urllib.request.urlopen(request)
+            response.read()
+        except Exception as e:
+            return False
+
+        return True
\ No newline at end of file

modules/communication/liquidsoap/client.py

+#
+#  engine
+#
+#  Playout Daemon for autoradio project
+#
+#
+#  Copyright (C) 2017-2018 Gottfried Gaisbauer <gottfried.gaisbauer@servus.at>
+#
+#  This file is part of engine.
+#
+#  engine 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
+#  any later version.
+#
+#  engine 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 engine. If not, see <http://www.gnu.org/licenses/>.
+#
+
+import socket
+import urllib.parse
+import configparser
+import logging
+
+from multiprocessing import Lock
+
+from libraries.exceptions.auraexceptions import LQConnectionError
+
+
+""" 
+    LiquidSoapClient Class 
+    Connects to a LiquidSoap instance over a socket and sends commands to it
+"""
+
+
+class LiquidSoapClient:
+    mutex = None
+    logger = None
+    debug = False
+    socket_path = ""
+
+    def __init__(self, config, socket_filename):
+        """
+        Constructor
+        @type    socket_path: string
+        @param   socket_path: Der Pfad zum Socket des Liquidsoap-Scripts
+        """
+        self.logger = logging.getLogger("AuraEngine")
+        self.socket_path = config.get('socketdir') + '/' + socket_filename
+
+        self.logger.debug("LiquidSoapClient using socketpath: " + self.socket_path)
+
+        # init
+        self.mutex = Lock()
+        self.connected = False
+        self.can_connect = True
+        self.message = ''
+        self.socket = None
+        self.metareader = configparser.ConfigParser()
+
+    # ------------------------------------------------------------------------------------------ #
+    def connect(self):
+        """
+        Verbindung herstellen
+        """
+        try:
+            self.socket = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
+            self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+            self.socket.connect(self.socket_path)
+        except socket.error as e:
+            msg = "Cannot connect to socketpath " + self.socket_path + ". Reason: "+str(e)
+            self.logger.critical(msg)
+            self.can_connect = False
+            self.connected = False
+#            raise e
+        else:
+            self.can_connect = True
+            self.connected = True
+            return True
+
+    # ------------------------------------------------------------------------------------------ #
+    def is_connected(self):
+        return self.connected
+
+    # ------------------------------------------------------------------------------------------ #
+    def write(self, data):
+        """
+        Auf den Socket schreiben
+        @type    data: string
+        @param   data: Der String der gesendet wird
+        """
+        if self.connected:
+            self.socket.sendall(data.decode("UTF-8"))
+
+    # ------------------------------------------------------------------------------------------ #
+    def read_all(self, timeout=2):
+        """
+        Vom Socket lesen, bis dieser "END" sendet
+        @type    timeout: int
+        @param   timeout: Ein optionales Timeout
+        @rtype:  string
+        @return: Die Antwort des Liquidsoap-Servers
+        """
+        # make socket non blocking
+        # self.client.setblocking(0)
+
+        data = '';
+
+        try:
+            # set timeout
+            self.socket.settimeout(timeout)
+
+            # acquire the lock
+            self.mutex.acquire()
+
+            while True:
+                data += self.socket.recv(1).decode("utf-8")
+
+                # receive as long as we are not at the END or recv a Bye! from liquidsoap
+                if data.find("END\r\n") != -1 or data.find("Bye!\r\n") != -1:
+                    data.replace("END\r\n", "")
+                    break
+
+            # release the lock
+            self.mutex.release()
+
+        except Exception as e:
+            self.logger.error(str(e))
+            self.mutex.release()
+
+        return data
+
+    # ------------------------------------------------------------------------------------------ #
+    def read(self):
+        """
+        read from socket and store return value in self.message
+        @rtype:  string
+        @return: The answer of liquidsoap server
+        """
+        if self.connected:
+            ret = self.read_all().splitlines()
+
+            try:
+                last = ret.pop() # pop out end
+
+                if len(ret) > 1:
+                    self.message = str.join(" - ", ret)
+                elif len(ret) == 1:
+                    self.message = ret[0]
+
+                if last == "Bye!":
+                    self.message = last
+
+            except Exception as e:
+                self.logger.error(str(e))
+
+            return self.message
+
+    # ------------------------------------------------------------------------------------------ #
+    def close(self):
+        """
+        Quit senden und Verbindung schließen
+        """
+        if self.connected:
+            message = "quit\r"
+            self.socket.sendall(message.decode("UTF-8"))
+            self.socket.close()
+            self.connected = False
+
+    # ------------------------------------------------------------------------------------------ #
+    def command(self, namespace, command, param=""):
+        """
+        Kommando an Liquidosap senden
+        @type    command:   string
+        @param   command:   Kommando
+        @type    namespace: string
+        @param   namespace: Namespace/Kanal der angesprochen wird
+        @type    param:     mixed
+        @param   param:     ein optionaler Parameter
+        @rtype:  string
+        @return: Die Antwort des Liquidsoap-Servers
+        """
+
+        param = (param.strip() if param.strip() == "" else " " + urllib.parse.unquote(param.strip()))
+        if self.connected:
+            # print namespace + '.' + command + param + "\n"
+            if namespace is "":
+                message = str(command) + str(param) + str("\n")
+            else:
+                message = str(namespace) + str(".") + str(command) + str(param) + str("\n")
+
+            try:
+                self.logger.info("LiquidSoapClient sending to LiquidSoap Server: " + message[0:len(message)-1])
+
+                # send all the stuff over the socket to liquidsoap server
+                self.socket.sendall(message.encode())
+
+                self.logger.debug("LiquidSoapClient waiting for reply from LiquidSoap Server")
+
+                # wait for reply
+                self.read()
+
+                self.logger.info("LiquidSoapClient got reply: " + self.message)
+            except BrokenPipeError as e:
+                self.logger.error("Detected a problem with liquidsoap connection while sending: " + message + ". Reason: " + str(e) + "! Trying to reconnect.")
+                self.connect()
+                raise
+
+            except Exception as e:
+                self.logger.error("Unexpected error: " + str(e))
+                raise
+
+            return self.message
+        else:
+            msg = "LiquidsoapClient not connected to LiquidSoap Server"
+            self.logger.debug(msg)
+            raise LQConnectionError(msg)
+
+    # ------------------------------------------------------------------------------------------ #
+    def simplecommand(self, command):
+        """
+        Parameterloses Kommando ohne Namespace senden
+        @type    command:   string
+        @param   command:   Kommando
+        @rtype:  string
+        @return: Die Antwort des Liquidsoap-Servers
+        """
+
+        if self.connected:
+            message = str(command) + '\n'
+            self.socket.sendall(message.decode("UTF-8"))
+            self.read()
+            # self.client.close()
+            return self.message
+
+    # ------------------------------------------------------------------------------------------ #
+    def get_metadata(self, rid):
+        """
+        Parameterloses Kommando ohne Namespace senden
+        @type    rid:   string/int
+        @param   rid:   Die ID eines Requests
+        @rtype:  dict
+        @return: Die Metadaten als dict
+        """
+        meta = self.command('metadata ' + str(rid), 'request')
+
+        meta = '[root]\n' + meta
+        try:
+            self.metareader.read_string(meta)
+        except configparser.ParsingError as e:
+            self.logger.error("ParsingError. Reason: " + str(e))
+            return False
+        return self.metareader
+
+    # ------------------------------------------------------------------------------------------ #
+    def help(self):
+        """
+        get liquidsoap server help
+        @rtype:  string
+        @return: the response of the liquidsoap server
+        """
+        if self.connected:
+            self.command('help', '')
+            return self.message
+
+    # ------------------------------------------------------------------------------------------ #
+    def version(self):
+        """
+        Liquidsoap get version
+        @rtype:  string
+        @return: the response of the liquidsoap server
+        """
+        if self.connected:
+            message = 'version'
+            self.command(message, '')
+            return self.message
+
+    # ------------------------------------------------------------------------------------------ #
+    def uptime(self):
+        """
+        Liquidsoap get uptime
+        @rtype:  string
+        @return: Die Antwort des Liquidsoap-Servers
+        """
+
+        if self.connected:
+            self.command('uptime', '')
+            return self.message
+
+    # ------------------------------------------------------------------------------------------ #
+    def byebye(self):
+        """
+        Liquidsoap say byebye
+        @rtype:  string
+        @return: Die Antwort des Liquidsoap-Servers
+        """
+
+        if self.connected:
+            self.command("", "quit")
+            return self.message
\ No newline at end of file

modules/communication/liquidsoap/initthread.py

+#
+#  engine
+#
+#  Playout Daemon for autoradio project
+#
+#
+#  Copyright (C) 2017-2018 Gottfried Gaisbauer <gottfried.gaisbauer@servus.at>
+#
+#  This file is part of engine.
+#
+#  engine 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
+#  any later version.
+#
+#  engine 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 engine. If not, see <http://www.gnu.org/licenses/>.
+#
+
+import time
+import logging
+import threading
+
+from libraries.enum.auraenumerations import ScheduleEntryType
+
+
+class LiquidSoapInitThread(threading.Thread):
+    logger = None
+    socket = None
+    active_entry = None
+    liquidsoapcommunicator = None
+
+    def __init__(self):
+        threading.Thread.__init__(self)
+        self.logger = logging.getLogger("AuraEngine")
+
+    def run(self):
+        try:
+            # sleep needed, because the socket is created to slow by liquidsoap
+            time.sleep(1)
+            self.logger.info("Waited 1s for liquidsoap. Jez soit a si gspian")
+
+            # enable lqs transaction
+            self.liquidsoapcommunicator.enable_transaction()
+
+            # reset channels and reload them
+            self.liquidsoapcommunicator.channels = None
+            channels = self.liquidsoapcommunicator.get_all_channels()
+
+            # set every volume to 0
+            for c in channels:
+                self.liquidsoapcommunicator.channel_volume(c, "0")
+
+            # select all channels
+#            for c in channels:
+#                self.liquidsoapcommunicator.channel_activate(c, True)
+
+            # setting init params
+            self.liquidsoapcommunicator.playlist_push(self.liquidsoapcommunicator.config.get("install_dir") + "/configuration/blank.flac")
+            self.liquidsoapcommunicator.set_http_url("http://stream.fro.at/fro-128.ogg")
+
+            # wait another second. lqs really starts slow..
+            time.sleep(1)
+
+            # set active
+            if self.active_entry is not None:
+                self.logger.info("LiquidSoapInitThread sets activechannel: "+str(self.active_entry))
+
+                channel = self.active_entry.type
+                if channel != "" and channel is not None:
+                    self.liquidsoapcommunicator.http_start_stop(channel == ScheduleEntryType.STREAM)
+                    self.liquidsoapcommunicator.channel_volume(channel.value, self.active_entry.volume)
+            else:
+                self.logger.warning("No active entry in the scheduler! Is a programme loaded?")
+
+            self.liquidsoapcommunicator.disable_transaction()
+        except Exception as e:
+            self.logger.critical("Liquidsoap connection ERROR! Restart LQ Server! Reason: "+str(e))
+
+

modules/liquidsoap/__init__.py

+__author__ = 'gg'

modules/liquidsoap/helpers/__init__.py

+__author__ = 'michel'
+
+import os
+import sys

modules/liquidsoap/in_filesystem.liq

+#
+#  engine
+#
+#  Playout Daemon for autoradio project
+#
+#
+#  Copyright (C) 2017-2018 Gottfried Gaisbauer <gottfried.gaisbauer@servus.at>
+#
+#  This file is part of engine.
+#
+#  engine 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
+#  any later version.
+#
+#  engine 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 engine. If not, see <http://www.gnu.org/licenses/>.
+#
+
+# a hard one
+input_fs = request.queue(id="fs")
\ No newline at end of file