# Author: Nic Wolfe <nic@wolfeden.ca>
# URL: http://code.google.com/p/sickbeard/
#
# This file is part of SickRage.
#
# SickRage 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.
#
# SickRage 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 SickRage. If not, see <http://www.gnu.org/licenses/>.
from __future__ import with_statement
import os
import time
import datetime
import urllib
import urlparse
import re
import threading
import sickbeard
from lib.shove import Shove
from lib.feedcache import cache
from sickbeard import db
from sickbeard import logger
from sickbeard.common import Quality, cpu_presets
from sickbeard import helpers, show_name_helpers
from sickbeard.exceptions import MultipleShowObjectsException
from sickbeard.exceptions import AuthException
from sickbeard import encodingKludge as ek
from name_parser.parser import NameParser, InvalidNameException
cache_lock = threading.Lock()
class CacheDBConnection(db.DBConnection):
def __init__(self, providerName):
db.DBConnection.__init__(self, "cache.db")
# Create the table if it's not already there
try:
if not self.hasTable(providerName):
self.action("CREATE TABLE [" + providerName + "] (name TEXT, season NUMERIC, episodes TEXT, indexerid NUMERIC, url TEXT, time NUMERIC, quality TEXT)")
except Exception, e:
if str(e) != "table [" + providerName + "] already exists":
raise
# Create the table if it's not already there
try:
if not self.hasTable('lastUpdate'):
self.action("CREATE TABLE lastUpdate (provider TEXT, time NUMERIC)")
except Exception, e:
if str(e) != "table lastUpdate already exists":
raise
class TVCache():
def __init__(self, provider):
self.provider = provider
self.providerID = self.provider.getID()
self.minTime = 10
def _getDB(self):
return CacheDBConnection(self.providerID)
def _clearCache(self):
if not self.shouldClearCache():
return
curDate = datetime.date.today() - datetime.timedelta(weeks=1)
with self._getDB() as myDB:
myDB.action("DELETE FROM [" + self.providerID + "] WHERE time < ?", [int(time.mktime(curDate.timetuple()))])
def _getRSSData(self):
data = None
return data
def _checkAuth(self, data):
return True
def _checkItemAuth(self, title, url):
return True
def updateCache(self):
# delete anything older then 7 days
logger.log(u"Clearing " + self.provider.name + " cache")
self._clearCache()
if not self.shouldUpdate():
return
if self._checkAuth(None):
data = self._getRSSData()
# as long as the http request worked we count this as an update
if data:
self.setLastUpdate()
else:
return []
if self._checkAuth(data):
items = data.entries
cl = []
for item in items:
ci = self._parseItem(item)
if ci is not None:
cl.append(ci)
if cl:
with self._getDB() as myDB:
myDB.mass_action(cl)
else:
raise AuthException(
u"Your authentication credentials for " + self.provider.name + " are incorrect, check your config")
return []
def getRSSFeed(self, url, post_data=None, request_headers=None):
# create provider storaqe cache
storage = Shove('sqlite:///' + ek.ek(os.path.join, sickbeard.CACHE_DIR, self.provider.name) + '.db')
fc = cache.Cache(storage)
parsed = list(urlparse.urlparse(url))
parsed[2] = re.sub("/{2,}", "/", parsed[2]) # replace two or more / with one
if post_data:
url += urllib.urlencode(post_data)
f = fc.fetch(url, request_headers=request_headers)
if not f:
logger.log(u"Error loading " + self.providerID + " URL: " + url, logger.ERROR)
return None
elif 'error' in f.feed:
logger.log(u"Newznab ERROR:[%s] CODE:[%s]" % (f.feed['error']['description'], f.feed['error']['code']),
logger.DEBUG)
return None
elif not f.entries:
logger.log(u"No items found on " + self.providerID + " using URL: " + url, logger.WARNING)
return None
storage.close()
return f
def _translateTitle(self, title):
return title.replace(' ', '.')
def _translateLinkURL(self, url):
return url.replace('&', '&')
def _parseItem(self, item):
title = item.title
url = item.link
self._checkItemAuth(title, url)
if title and url:
title = self._translateTitle(title)
url = self._translateLinkURL(url)
logger.log(u"Checking if item from RSS feed is in the cache: " + title, logger.DEBUG)
return self._addCacheEntry(title, url)
else:
logger.log(
u"The data returned from the " + self.provider.name + " feed is incomplete, this result is unusable",
logger.DEBUG)
return None
def _getLastUpdate(self):
with self._getDB() as myDB:
sqlResults = myDB.select("SELECT time FROM lastUpdate WHERE provider = ?", [self.providerID])
if sqlResults:
lastTime = int(sqlResults[0]["time"])
if lastTime > int(time.mktime(datetime.datetime.today().timetuple())):
lastTime = 0
else:
lastTime = 0
return datetime.datetime.fromtimestamp(lastTime)
def _getLastSearch(self):
with self._getDB() as myDB:
sqlResults = myDB.select("SELECT time FROM lastSearch WHERE provider = ?", [self.providerID])
if sqlResults:
lastTime = int(sqlResults[0]["time"])
if lastTime > int(time.mktime(datetime.datetime.today().timetuple())):
lastTime = 0
else:
lastTime = 0
return datetime.datetime.fromtimestamp(lastTime)
def setLastUpdate(self, toDate=None):
if not toDate:
toDate = datetime.datetime.today()
with self._getDB() as myDB:
myDB.upsert("lastUpdate",
{'time': int(time.mktime(toDate.timetuple()))},
{'provider': self.providerID})
def setLastSearch(self, toDate=None):
if not toDate:
toDate = datetime.datetime.today()
with self._getDB() as myDB:
myDB.upsert("lastSearch",
{'time': int(time.mktime(toDate.timetuple()))},
{'provider': self.providerID})
lastUpdate = property(_getLastUpdate)
lastSearch = property(_getLastSearch)
def shouldUpdate(self):
# if we've updated recently then skip the update
#if datetime.datetime.today() - self.lastUpdate < datetime.timedelta(minutes=self.minTime):
# logger.log(u"Last update was too soon, using old cache: today()-" + str(self.lastUpdate) + "<" + str(
# datetime.timedelta(minutes=self.minTime)), logger.DEBUG)
# return False
return True
def shouldClearCache(self):
# if daily search hasn't used our previous results yet then don't clear the cache
if self.lastUpdate > self.lastSearch:
logger.log(
u"Daily search has not yet searched our last cache results, skipping clearig cache ...", logger.DEBUG)
return False
return True
def _addCacheEntry(self, name, url, quality=None):
try:
myParser = NameParser(convert=True)
parse_result = myParser.parse(name)
except InvalidNameException:
logger.log(u"Unable to parse the filename " + name + " into a valid episode", logger.DEBUG)
return None
if not parse_result or not parse_result.series_name:
return None
if not parse_result.show:
logger.log(u"No match for show: [" + parse_result.series_name + "], not caching ...", logger.DEBUG)
return None
season = episodes = None
if parse_result.air_by_date or parse_result.sports:
airdate = parse_result.air_date.toordinal() or parse_result.sports_event_date.toordinal()
with db.DBConnection() as myDB:
sql_results = myDB.select(
"SELECT season, episode FROM tv_episodes WHERE showid = ? AND indexer = ? AND airdate = ?",
[parse_result.show.indexerid, parse_result.show.indexer, airdate])
if sql_results > 0:
season = int(sql_results[0]["season"])
episodes = [int(sql_results[0]["episode"])]
else:
season = parse_result.season_number if parse_result.season_number != None else 1
episodes = parse_result.episode_numbers
if season and episodes:
# store episodes as a seperated string
episodeText = "|" + "|".join(map(str, episodes)) + "|"
# get the current timestamp
curTimestamp = int(time.mktime(datetime.datetime.today().timetuple()))
# get quality of release
if quality is None:
quality = Quality.sceneQuality(name, parse_result.is_anime)
if not isinstance(name, unicode):
name = unicode(name, 'utf-8')
logger.log(u"Added RSS item: [" + name + "] to cache: [" + self.providerID + "]", logger.DEBUG)
return [
"INSERT INTO [" + self.providerID + "] (name, season, episodes, indexerid, url, time, quality) VALUES (?,?,?,?,?,?,?)",
[name, season, episodeText, parse_result.show.indexerid, url, curTimestamp, quality]]
def searchCache(self, episodes, manualSearch=False):
neededEps = self.findNeededEpisodes(episodes, manualSearch)
return neededEps
def listPropers(self, date=None, delimiter="."):
with self._getDB() as myDB:
sql = "SELECT * FROM [" + self.providerID + "] WHERE name LIKE '%.PROPER.%' OR name LIKE '%.REPACK.%'"
if date != None:
sql += " AND time >= " + str(int(time.mktime(date.timetuple())))
return filter(lambda x: x['indexerid'] != 0, myDB.select(sql))
def findNeededEpisodes(self, episodes, manualSearch=False):
neededEps = {}
for epObj in episodes:
with self._getDB() as myDB:
sqlResults = myDB.select(
"SELECT * FROM [" + self.providerID + "] WHERE indexerid = ? AND season = ? AND episodes LIKE ?",
[epObj.show.indexerid, epObj.season, "%|" + str(epObj.episode) + "|%"])
# for each cache entry
for curResult in sqlResults:
# skip non-tv crap (but allow them for Newzbin cause we assume it's filtered well)
if self.providerID != 'newzbin' and not show_name_helpers.filterBadReleases(curResult["name"]):
continue
# get the show object, or if it's not one of our shows then ignore it
try:
showObj = helpers.findCertainShow(sickbeard.showList, int(curResult["indexerid"]))
except MultipleShowObjectsException:
showObj = None
if not showObj:
continue
# get season and ep data (ignoring multi-eps for now)
curSeason = int(curResult["season"])
if curSeason == -1:
continue
curEp = curResult["episodes"].split("|")[1]
if not curEp:
continue
curEp = int(curEp)
curQuality = int(curResult["quality"])
# if the show says we want that episode then add it to the list
if not showObj.wantEpisode(curSeason, curEp, curQuality, manualSearch):
logger.log(u"Skipping " + curResult["name"] + " because we don't want an episode that's " +
Quality.qualityStrings[curQuality], logger.DEBUG)
else:
if not epObj:
epObj = showObj.getEpisode(curSeason, curEp)
# build a result object
title = curResult["name"]
url = curResult["url"]
logger.log(u"Found result " + title + " at " + url)
result = self.provider.getResult([epObj])
result.url = url
result.name = title
result.quality = curQuality
result.content = self.provider.getURL(url) \
if self.provider.providerType == sickbeard.providers.generic.GenericProvider.TORRENT \
and not url.startswith('magnet') else None
# add it to the list
if epObj not in neededEps:
neededEps[epObj] = [result]
else:
neededEps[epObj].append(result)
# datetime stamp this search so cache gets cleared
self.setLastSearch()
return neededEps