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SickRage/sickbeard/tvcache.py

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# Author: Nic Wolfe <nic@wolfeden.ca>
# URL: http://code.google.com/p/sickbeard/
#
# This file is part of Sick Beard.
#
# Sick Beard 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.
#
# Sick Beard 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 Sick Beard. If not, see <http://www.gnu.org/licenses/>.
import time
import datetime
import sqlite3
import sickbeard
from sickbeard import db
from sickbeard import logger
from sickbeard.common import Quality
from sickbeard import helpers, show_name_helpers
from sickbeard import name_cache, scene_exceptions
from sickbeard.exceptions import MultipleShowObjectsException, ex
from sickbeard.exceptions import ex, AuthException
from name_parser.parser import NameParser, InvalidNameException
class CacheDBConnection(db.DBConnection):
def __init__(self, providerName):
db.DBConnection.__init__(self, "cache.db")
# Create the table if it's not already there
try:
sql = "CREATE TABLE [" + providerName + "] (name TEXT, season NUMERIC, episodes TEXT, indexerid NUMERIC, url TEXT, time NUMERIC, quality TEXT);"
self.connection.execute(sql)
self.connection.commit()
except sqlite3.OperationalError, e:
if str(e) != "table [" + providerName + "] already exists":
raise
# Create the table if it's not already there
try:
sql = "CREATE TABLE lastUpdate (provider TEXT, time NUMERIC);"
self.connection.execute(sql)
self.connection.commit()
except sqlite3.OperationalError, 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):
myDB = self._getDB()
myDB.action("DELETE FROM [" + self.providerID + "] WHERE 1")
def _getRSSData(self):
data = None
return data
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def _checkAuth(self, data):
return True
def _checkItemAuth(self, title, url):
return True
def updateCache(self):
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 []
# now that we've loaded the current RSS feed lets delete the old cache
logger.log(u"Clearing " + self.provider.name + " cache and updating with new information")
self._clearCache()
if self._checkAuth(data):
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items = data.entries
ql = []
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for item in items:
qi = self._parseItem(item)
if qi is not None:
ql.append(qi)
if len(ql):
myDB = self._getDB()
myDB.mass_action(ql)
else:
raise AuthException(
u"Your authentication credentials for " + self.provider.name + " are incorrect, check your config")
return []
def _translateTitle(self, title):
return title.replace(' ', '.')
def _translateLinkURL(self, url):
return url.replace('&amp;', '&')
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"Adding item from RSS to cache: " + title, logger.DEBUG)
return self._addCacheEntry(title, url)
else:
logger.log(
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u"The data returned from the " + self.provider.name + " feed is incomplete, this result is unusable",
logger.DEBUG)
return None
def _getLastUpdate(self):
myDB = self._getDB()
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 setLastUpdate(self, toDate=None):
if not toDate:
toDate = datetime.datetime.today()
myDB = self._getDB()
myDB.upsert("lastUpdate",
{'time': int(time.mktime(toDate.timetuple()))},
{'provider': self.providerID})
lastUpdate = property(_getLastUpdate)
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 _addCacheEntry(self, name, url, quality=None):
season = None
episodes = None
# if we don't have complete info then parse the filename to get it
try:
myParser = NameParser()
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:
logger.log(u"Giving up because I'm unable to parse this name: " + name, logger.DEBUG)
return None
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if not parse_result.series_name:
logger.log(u"No series name retrieved from " + name + ", unable to cache it", logger.DEBUG)
return None
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showObj = helpers.get_show_by_name(parse_result.series_name)
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if not showObj:
logger.log(u"Could not find a show matching " + parse_result.series_name + " in the database, skipping ...", logger.DEBUG)
return None
if parse_result.air_by_date:
myDB = db.DBConnection()
airdate = parse_result.air_date.toordinal()
sql_results = myDB.select("SELECT season, episode FROM tv_episodes WHERE showid = ? AND indexer = ? AND airdate = ?",
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[showObj.indexerid, showObj.indexer, airdate])
if sql_results > 0:
season = int(sql_results[0]["season"])
episodes = [int(sql_results[0]["episode"])]
else:
season = parse_result.season_number
episodes = parse_result.episode_numbers
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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)
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 (?,?,?,?,?,?,?)",
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[name, season, episodeText, showObj.indexerid, url, curTimestamp, quality]]
def searchCache(self, episode, manualSearch=False):
neededEps = self.findNeededEpisodes(episode, manualSearch)
return neededEps
def listPropers(self, date=None, delimiter="."):
myDB = self._getDB()
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))
return myDB.select(sql)
def findNeededEpisodes(self, episode=None, manualSearch=False):
neededEps = {}
myDB = self._getDB()
if not episode:
sqlResults = myDB.select("SELECT * FROM [" + self.providerID + "]")
else:
sqlResults = myDB.select(
"SELECT * FROM [" + self.providerID + "] WHERE indexerid = ? AND season = ? AND episodes LIKE ?",
[episode.show.indexerid, episode.scene_season, "%|" + str(episode.scene_episode) + "|%"])
# for each cache entry
for curResult in sqlResults:
# skip if we don't have a indexerid
indexerid = int(curResult["indexerid"])
if not indexerid:
continue
# 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:
epObj = None
if episode:
epObj = episode
if epObj:
# 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)
return neededEps