#!/usr/bin/python # rai.py by Ambrosa http://www.ambrosa.net # this module is used for download EPG data from Rai website # derived from E2_LOADEPG __author__ = "ambrosa http://www.ambrosa.net" __copyright__ = "Copyright (C) 2008-2011 Alessandro Ambrosini" __license__ = "CreativeCommons by-nc-sa http://creativecommons.org/licenses/by-nc-sa/3.0/" import os import sys import time import codecs import socket import string import random import urllib2 import ConfigParser # import CrossEPG functions import crossepg # location of local python modules under "scripts/lib" dir. # add it to sys.path() crossepg_instroot = crossepg.epgdb_get_installroot() if crossepg_instroot == False: sys.exit(1) libdir = os.path.join(crossepg_instroot , 'scripts/lib') sys.path.append(libdir) # import local modules import sgmllib import scriptlib # ================================================================= # HTML PARSER class Titolo_parser(sgmllib.SGMLParser): def parse(self, s): self.feed(s) self.close() def __init__(self, day_get, verbose=0): sgmllib.SGMLParser.__init__(self, verbose) self.daynow = day_get self.daynext = time.strftime("%Y%m%d",time.localtime(time.mktime(time.strptime(day_get,"%Y%m%d"))+86400)) self.day = self.daynow self.guidatoday = [] self.guidatomorrow = [] self.sera = False self.tomorrow = False self.start_orario = False self.start_titolo = False self.inside_a_titolo = False self.inside_palinsesto = False def start_div(self,attributes): for name,value in attributes: if name == "class": if value == "intG": self.inside_palinsesto = True def start_span(self, attributes): if self.inside_palinsesto == True: for name, value in attributes: if name == "class": if value == "ora": self.start_orario = True if value == "info": self.start_titolo = True def start_a(self,attributes): if self.inside_palinsesto == True: if self.start_titolo == True: self.inside_a_titolo = True def handle_data(self, data): if self.inside_palinsesto == True: if self.start_orario == True: # if time < 06:00 is a next day event if int(time.strftime("%H",time.strptime(data,"%H:%M"))) < 6 : self.day = self.daynext self.tomorrow = True else: if self.tomorrow == True: self.inside_a_titolo = False self.start_titolo = False self.inside_palinsesto = False return self.dataoraevento = time.strftime("%Y-%m-%d %H:%M",time.strptime(self.day+'-'+data,"%Y%m%d-%H:%M")) self.start_orario = False if self.inside_a_titolo == True: if self.tomorrow == False: self.guidatoday.append((self.dataoraevento,data.strip())) else: self.guidatomorrow.append((self.dataoraevento,data.strip())) self.inside_a_titolo = False self.start_titolo = False self.inside_palinsesto = False def get_guida(self): return ((self.guidatoday,self.guidatomorrow)) # ================================================================= class main: # main config file CONF_CONFIGFILENAME = "rai.conf" # Network socket timeout (in seconds) CONF_SOCKET_TIMEOUT = 20 # log text CONF_LOG_SCRIPT_NAME = "RAI (Italy)" CONF_LOG_PREFIX = "RAI: " # retry number if HTTP error HTTP_ERROR_RETRY = 3 # seconds to wait between retries HTTP_ERROR_WAIT_RETRY = 5 # random time delay (in seconds) between access to remote web pages CONF_RANDOM_MIN = 0.0 CONF_RANDOM_MAX = 2.0 # charset used in remote website epg data REMOTE_EPG_CHARSET = 'utf-8' TODAY = '' DAYCACHE = [] FIELD_SEPARATOR = '###' CHANNELLIST = {} def log(self,s,video=0): self.logging.log(self.CONF_LOG_PREFIX + str(s)) if video == 1: self.log2video(str(s)) def log2video(self,s): self.logging.log2video_status(str(s)) def __init__(self,confdir,dbroot): # initialize logging self.logging = scriptlib.logging_class() # write to video OSD the script name self.logging.log2video_scriptname(self.CONF_LOG_SCRIPT_NAME) CONF_FILE = os.path.join(confdir,self.CONF_CONFIGFILENAME) if not os.path.exists(CONF_FILE) : self.log("ERROR: %s not present" % CONF_FILE,1) sys.exit(1) config = ConfigParser.ConfigParser() config.optionxform = str # needed to return case sensitive index config.read(CONF_FILE) # reading [global] section options self.CONF_DEFAULT_PROVIDER = config.get("global","DEFAULT_PROVIDER") # save cache under dbroot self.CONF_CACHEDIR = os.path.join(dbroot,config.get("global","CACHE_DIRNAME")) self.CONF_MAX_DAY_EPG = config.getint("global","MAX_DAY_EPG") self.CONF_URL = config.get("global","URL") self.CONF_GMT_ZONE = config.get("global","GMT_ZONE") if self.CONF_GMT_ZONE.strip(' ').lower() == 'equal': #self.DELTA_UTC = -scriptlib.delta_utc() # return negative if timezone is east of GMT (like Italy), invert sign self.DELTA_UTC = 0 else: self.DELTA_UTC = float(self.CONF_GMT_ZONE)*3600.0 if self.DELTA_UTC >= 0: self.DELTA_UTC = self.DELTA_UTC + scriptlib.delta_dst() else: self.DELTA_UTC = self.DELTA_UTC - scriptlib.delta_dst() self.DELTA_UTC = int(self.DELTA_UTC) #self.log("Website timezone - UTC = %d seconds" % self.DELTA_UTC) if not os.path.exists(self.CONF_CACHEDIR): self.log("Creating \'%s\' directory for caching" % self.CONF_CACHEDIR) os.mkdir(self.CONF_CACHEDIR) # reading [channels] section temp=config.items("channels"); # create a dictionary (Python array) with index = channel ID for i in temp: self.CHANNELLIST[i[0]] = unicode(i[1],'utf-8') if len(self.CHANNELLIST) == 0 : self.log("ERROR: [channels] section empty ?",1) sys.exit(1) # set network socket timeout socket.setdefaulttimeout(self.CONF_SOCKET_TIMEOUT) # initialize random generator random.seed() # today date (format AAAAMMDD) self.TODAY = time.strftime("%Y%m%d") # create a list filled with dates (format AAAAMMDD) from today to today+MAX_DAY_EPG self.DAYCACHE=[self.TODAY] for day in range(1,self.CONF_MAX_DAY_EPG): self.DAYCACHE.append(time.strftime("%Y%m%d",time.localtime(time.time()+86400*day))) # ---------------------------------------------------------------------- def download_and_cache(self): self.log("--- START DOWNLOAD AND CACHE DATA ---") self.log2video("STARTING DOWNLOAD") self.log("Removing old cached files") scriptlib.cleanup_oldcachedfiles(self.CONF_CACHEDIR, self.FIELD_SEPARATOR) #self.log("Start downloading HTML data from \'%s\'" % self.CONF_URL) chlist = self.CHANNELLIST # get remote XML files # chid format: channel id , 0|1|2(,new name) # i.e. ("101" , "1,SkyCinema1") for c in sorted(chlist.keys()): self.guidatoday = [] self.guidatomorrow = [] # get cache option # 0 : don't download/cache # 1 : download and cache (optional 1,new_name ) # 2 : always download overwriting existing files (optional 2,new_name ) # 3 : always download overwriting existing files only for TODAY (optional 3,new_name ) cacheopt = int(string.split(chlist[c],",")[0]) # if cacheopt == 0, do nothing if cacheopt == 0: continue channel_name = '' if len(chlist[c].split(",")) > 1 : if chlist[c].split(",")[1] != '' : # channel renamed, new name provided by user channel_name = chlist[c].split(",")[1].strip(' ').lower() # if channel name is not present as option, quit with error if channel_name == '': self.log("ERROR ! ID=%s channel name not present" % c, 1) sys.exit(1) channel_provider = self.CONF_DEFAULT_PROVIDER if len(chlist[c].split(",")) > 2 : if chlist[c].split(",")[2] != '' : channel_provider = chlist[c].split(",")[2].strip(' ').lower() exit_for_loop = False for day in self.DAYCACHE: if exit_for_loop == True: break day_get = time.strftime("%Y_%m_%d",time.strptime(day,"%Y%m%d")) xmlfile = "?%s_%s" % (c,day_get) # download only if file doesn't exist or cacheopt == 2 (always download), # using open(...,"w") files will be overwritten (saving a delete + create) eventfilename = scriptlib.fn_escape(str(c) + self.FIELD_SEPARATOR + channel_name + self.FIELD_SEPARATOR + day) eventfilepath = os.path.join(self.CONF_CACHEDIR, eventfilename) if (cacheopt == 1) and os.path.exists(eventfilepath): continue if (cacheopt == 3) and os.path.exists(eventfilepath) and (day != self.TODAY): continue if (cacheopt != 1) and (cacheopt != 2) and (cacheopt != 3): self.log("Warning: unknown cache option " + str(cacheopt)) exit_for_loop = True continue self.log("Download HTML data from \'%s\'" % (self.CONF_URL + xmlfile)) self.log2video("Download " + c) i = self.HTTP_ERROR_RETRY while i > 0 : # wait randomly to avoid overloading website time.sleep(random.uniform(self.CONF_RANDOM_MIN, self.CONF_RANDOM_MAX)) try: sock=urllib2.urlopen(self.CONF_URL + xmlfile) data=sock.read() except IOError, e: serr="unknown" if hasattr(e, 'reason'): serr=str(e.reason) elif hasattr(e, 'code'): serr=str(e.code) if hasattr(e, 'msg'): serr+=" , "+str(e.msg) self.log("\'%s\' connection error. Reason: %s. Waiting %d sec. and retry [%d] ..." % (self.CONF_URL + xmlfile, serr, self.HTTP_ERROR_WAIT_RETRY, i)) time.sleep(self.HTTP_ERROR_WAIT_RETRY) # add sleep i -= 1 else: i = 0 # force quit WHILE loop sock.close() dtparser = Titolo_parser(day) dtparser.parse(data) self.guida = self.guidatomorrow (self.guidatoday, self.guidatomorrow) = dtparser.get_guida() # if no data, quit for loop and stop downloading if len(self.guidatoday) == 0: exit_for_loop = True break self.guida = self.guida + self.guidatoday self.log(" writing in cache \'%s\'" % eventfilename) # write data in cache file using UTF-8 encoding fd = codecs.open(eventfilepath, "w", 'utf-8') fd.write(str(c) + self.FIELD_SEPARATOR + channel_name + self.FIELD_SEPARATOR + channel_provider + self.FIELD_SEPARATOR + day + '\n') fd.write("Local Time (human readeable)###Unix GMT Time###Event Title###Event Description\n") # extract all events and put in eventfile for event in self.guida: (dataora,titolo) = event event_starttime = dataora # time.mktime return Unix time inside GMT timezone event_startime_unix_gmt = str(int(time.mktime(time.strptime(event_starttime,"%Y-%m-%d %H:%M"))) - self.DELTA_UTC ) #event_startime_unix_gmt = str(int(time.mktime(time.strptime(event_starttime,"%Y-%m-%d %H:%M"))) ) #self.log(event_starttime + " , " + str(self.DELTA_UTC) + " , " + str(int(time.mktime(time.strptime(event_starttime,"%Y-%m-%d %H:%M")))) + " , " + event_startime_unix_gmt ) # convert remote data (RAI website use UTF-8) in Python Unicode (UCS2) event_title = unicode(titolo,self.REMOTE_EPG_CHARSET) event_title = event_title.replace('\r','') event_title = event_title.replace('\n',u' ') event_title = event_title.strip(u' ') event_description = u'' fd.write(event_starttime + self.FIELD_SEPARATOR + event_startime_unix_gmt + self.FIELD_SEPARATOR + event_title + self.FIELD_SEPARATOR + event_description + '\n') fd.close() # ---------------------------------------------------------------------- def process_cache(self): self.log("--- START PROCESSING CACHE ---") self.log2video("START PROCESSING CACHE") if not os.path.exists(self.CONF_CACHEDIR): self.log("ERROR: %s not present" % self.CONF_CACHEDIR,1) sys.exit(1) self.log("Loading lamedb") lamedb = scriptlib.lamedb_class() self.log("Initialize CrossEPG database") crossdb = scriptlib.crossepg_db_class() crossdb.open_db() events = [] previous_id = '' channels_name = '' total_events = 0 self.log("Start data processing") filelist = sorted(os.listdir(self.CONF_CACHEDIR)) filelist.append('***END***') for f in filelist : id = f.split(self.FIELD_SEPARATOR)[0] if previous_id == '': previous_id = id if id != previous_id : total_events += len(events) self.log(" ...processing \'%s\' , nr. events %d" % (previous_id,len(events))) self.log2video("processed %d events ..." % total_events ) for c in channels_name: # a channel can have zero or more SID (different channel with same name) # return the list [0e1f:00820000:0708:00c8:1:0 , 1d20:00820000:2fa8:013e:1:0 , ..... ] # return [] if channel name is not in lamedb sidbyname = lamedb.get_sid_byname(c.strip(' \n').lower()) # process every SID for s in sidbyname: # convert "0e1f:00820000:0708:00c8:1:0" to sid,tsid,onid # return the list [sid,tsid,onid] ch_sid = lamedb.convert_sid(s) if len(ch_sid) == 0: continue # add channel into db # doesn't matter if the channel already exist... epgdb do all the work crossdb.add_channel(ch_sid) i = 0 L = len(events) - 1 # process events for e in events: e_starttime = int(e.split(self.FIELD_SEPARATOR)[1]) if i < L : e_length = int(events[i+1].split(self.FIELD_SEPARATOR)[1]) - e_starttime else: # last event, dummy length 90 min. e_length = 5400 i += 1 # extract title and encode Python Unicode with UTF-8 e_title = e.split(self.FIELD_SEPARATOR)[2].encode('utf-8') # RAI website HAVE NOT long description. (bleah !). e_summarie = u' ' # encode Python Unicode in UTF-8 e_summarie = e_summarie.encode('utf-8') # add_event(start_time , duration , title , summarie , ISO639_language_code , strings_encoded_with_UTF-8) crossdb.add_event(e_starttime, e_length, e_title, e_summarie, 'ita', True ) if f == '***END***': break events = [] previous_id = id channels_name = '' if id == previous_id: self.log("Reading \'%s\'" % f) # read events from cache file using UTF-8 and insert them in events list fd = codecs.open(os.path.join(self.CONF_CACHEDIR, f),"r","utf-8") lines = fd.readlines() fd.close() if channels_name == '': # first line has channel data (id,name,provider,date) channels_name = lines[0].split(self.FIELD_SEPARATOR)[1].split('|') # the second line is only a remark # add events starting from third line events.extend(lines[2:]) # end process, close CrossEPG DB saving data crossdb.close_db() self.log("TOTAL EPG EVENTS PROCESSED: %d" % total_events) self.log("--- END ---") self.log2video("END , events processed: %d" % total_events) # **************************************************************************************************************************** # MAIN CODE: SCRIPT START HERE SCRIPT_DIR = 'scripts/rai/' # get CrossEPG installation dir. crossepg_instroot = crossepg.epgdb_get_installroot() if crossepg_instroot == False: sys.exit(1) scriptlocation = os.path.join(crossepg_instroot , SCRIPT_DIR) # get where CrossEPG save data (dbroot) and use it as script cache repository crossepg_dbroot = crossepg.epgdb_get_dbroot() if crossepg_dbroot == False: sys.exit(1) # initialize script class script_class = main(scriptlocation , crossepg_dbroot) # download data and cache them script_class.download_and_cache() # read cached data and inject into CrossEPG database script_class.process_cache()