mirror of
https://github.com/SickGear/SickGear.git
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56e2c28bad
Scene exceptions now uses a internal cache for scene exceptions and scene season exceptions, helps reduce overhead to DB and performs faster lookups when making scene exception requests.
371 lines
13 KiB
Python
371 lines
13 KiB
Python
# Author: Nic Wolfe <nic@wolfeden.ca>
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# URL: http://code.google.com/p/sickbeard/
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#
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# This file is part of SickRage.
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#
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# SickRage is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# SickRage is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with SickRage. If not, see <http://www.gnu.org/licenses/>.
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from __future__ import with_statement
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import os
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import time
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import datetime
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import threading
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import sickbeard
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from sickbeard import db
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from sickbeard import logger
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from sickbeard.common import Quality
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from sickbeard import helpers, show_name_helpers
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from sickbeard.exceptions import MultipleShowObjectsException
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from sickbeard.exceptions import AuthException
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from name_parser.parser import NameParser, InvalidNameException
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from sickbeard.rssfeeds import RSSFeeds
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cache_lock = threading.Lock()
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class CacheDBConnection(db.DBConnection):
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def __init__(self, providerName):
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db.DBConnection.__init__(self, "cache.db")
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# Create the table if it's not already there
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try:
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if not self.hasTable(providerName):
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self.action(
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"CREATE TABLE [" + providerName + "] (name TEXT, season NUMERIC, episodes TEXT, indexerid NUMERIC, url TEXT, time NUMERIC, quality TEXT)")
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else:
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sqlResults = self.select(
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"SELECT url, COUNT(url) as count FROM [" + providerName + "] GROUP BY url HAVING count > 1")
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for cur_dupe in sqlResults:
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self.action("DELETE FROM [" + providerName + "] WHERE url = ?", [cur_dupe["url"]])
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# add unique index to prevent further dupes from happening if one does not exist
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self.action("CREATE UNIQUE INDEX IF NOT EXISTS idx_url ON " + providerName + " (url)")
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except Exception, e:
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if str(e) != "table [" + providerName + "] already exists":
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raise
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# Create the table if it's not already there
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try:
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if not self.hasTable('lastUpdate'):
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self.action("CREATE TABLE lastUpdate (provider TEXT, time NUMERIC)")
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except Exception, e:
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if str(e) != "table lastUpdate already exists":
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raise
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def __del__(self):
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pass
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class TVCache():
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def __init__(self, provider):
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self.provider = provider
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self.providerID = self.provider.getID()
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self.minTime = 10
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def __del__(self):
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pass
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def _getDB(self):
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return CacheDBConnection(self.providerID)
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def _clearCache(self):
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if self.shouldClearCache():
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logger.log(u"Clearing " + self.provider.name + " cache")
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curDate = datetime.date.today() - datetime.timedelta(weeks=1)
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myDB = self._getDB()
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myDB.action("DELETE FROM [" + self.providerID + "] WHERE time < ?", [int(time.mktime(curDate.timetuple()))])
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# clear RSS Feed cache
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RSSFeeds(self.providerID).clearCache()
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def _getRSSData(self):
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data = None
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return data
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def _checkAuth(self, data):
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return True
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def _checkItemAuth(self, title, url):
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return True
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def updateCache(self):
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if self.shouldUpdate() and self._checkAuth(None):
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self._clearCache()
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data = self._getRSSData()
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# as long as the http request worked we count this as an update
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if data:
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self.setLastUpdate()
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else:
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return []
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if self._checkAuth(data):
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cl = []
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for item in data.entries:
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ci = self._parseItem(item)
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if ci is not None:
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cl.append(ci)
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if cl:
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myDB = self._getDB()
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myDB.mass_action(cl)
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else:
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raise AuthException(
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u"Your authentication credentials for " + self.provider.name + " are incorrect, check your config")
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return []
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def getRSSFeed(self, url, post_data=None, request_headers=None):
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return RSSFeeds(self.providerID).getFeed(url, post_data, request_headers)
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def _translateTitle(self, title):
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return title.replace(' ', '.')
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def _translateLinkURL(self, url):
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return url.replace('&', '&')
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def _parseItem(self, item):
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title = item.title
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url = item.link
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self._checkItemAuth(title, url)
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if title and url:
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title = self._translateTitle(title)
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url = self._translateLinkURL(url)
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logger.log(u"Checking if item from RSS feed is in the cache: " + title, logger.DEBUG)
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return self._addCacheEntry(title, url)
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else:
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logger.log(
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u"The data returned from the " + self.provider.name + " feed is incomplete, this result is unusable",
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logger.DEBUG)
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return None
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def _getLastUpdate(self):
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myDB = self._getDB()
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sqlResults = myDB.select("SELECT time FROM lastUpdate WHERE provider = ?", [self.providerID])
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if sqlResults:
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lastTime = int(sqlResults[0]["time"])
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if lastTime > int(time.mktime(datetime.datetime.today().timetuple())):
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lastTime = 0
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else:
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lastTime = 0
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return datetime.datetime.fromtimestamp(lastTime)
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def _getLastSearch(self):
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myDB = self._getDB()
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sqlResults = myDB.select("SELECT time FROM lastSearch WHERE provider = ?", [self.providerID])
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if sqlResults:
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lastTime = int(sqlResults[0]["time"])
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if lastTime > int(time.mktime(datetime.datetime.today().timetuple())):
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lastTime = 0
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else:
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lastTime = 0
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return datetime.datetime.fromtimestamp(lastTime)
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def setLastUpdate(self, toDate=None):
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if not toDate:
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toDate = datetime.datetime.today()
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myDB = self._getDB()
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myDB.upsert("lastUpdate",
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{'time': int(time.mktime(toDate.timetuple()))},
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{'provider': self.providerID})
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def setLastSearch(self, toDate=None):
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if not toDate:
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toDate = datetime.datetime.today()
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myDB = self._getDB()
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myDB.upsert("lastSearch",
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{'time': int(time.mktime(toDate.timetuple()))},
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{'provider': self.providerID})
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lastUpdate = property(_getLastUpdate)
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lastSearch = property(_getLastSearch)
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def shouldUpdate(self):
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# if we've updated recently then skip the update
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if datetime.datetime.today() - self.lastUpdate < datetime.timedelta(minutes=self.minTime):
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logger.log(u"Last update was too soon, using old cache: today()-" + str(self.lastUpdate) + "<" + str(
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datetime.timedelta(minutes=self.minTime)), logger.DEBUG)
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return False
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return True
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def shouldClearCache(self):
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# if daily search hasn't used our previous results yet then don't clear the cache
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if self.lastUpdate > self.lastSearch:
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logger.log(
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u"Daily search has not yet used our last cache results, not clearing cache ...", logger.DEBUG)
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return False
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return True
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def _addCacheEntry(self, name, url, quality=None):
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try:
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myParser = NameParser(convert=True)
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parse_result = myParser.parse(name)
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except InvalidNameException:
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logger.log(u"Unable to parse the filename " + name + " into a valid episode", logger.DEBUG)
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return None
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if not parse_result or not parse_result.series_name:
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return None
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if not parse_result.show:
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logger.log(u"No match for show: [" + parse_result.series_name + "], not caching ...", logger.DEBUG)
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return None
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season = episodes = None
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if parse_result.air_by_date or parse_result.sports:
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airdate = parse_result.air_date.toordinal() if parse_result.air_date else parse_result.sports_event_date.toordinal()
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myDB = db.DBConnection()
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sql_results = myDB.select(
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"SELECT season, episode FROM tv_episodes WHERE showid = ? AND indexer = ? AND airdate = ?",
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[parse_result.show.indexerid, parse_result.show.indexer, airdate])
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if sql_results > 0:
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season = int(sql_results[0]["season"])
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episodes = [int(sql_results[0]["episode"])]
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else:
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season = parse_result.season_number if parse_result.season_number != None else 1
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episodes = parse_result.episode_numbers
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if season and episodes:
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# store episodes as a seperated string
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episodeText = "|" + "|".join(map(str, episodes)) + "|"
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# get the current timestamp
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curTimestamp = int(time.mktime(datetime.datetime.today().timetuple()))
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# get quality of release
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if quality is None:
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quality = Quality.sceneQuality(name, parse_result.is_anime)
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if not isinstance(name, unicode):
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name = unicode(name, 'utf-8')
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logger.log(u"Added RSS item: [" + name + "] to cache: [" + self.providerID + "]", logger.DEBUG)
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return [
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"INSERT OR IGNORE INTO [" + self.providerID + "] (name, season, episodes, indexerid, url, time, quality) VALUES (?,?,?,?,?,?,?)",
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[name, season, episodeText, parse_result.show.indexerid, url, curTimestamp, quality]]
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def searchCache(self, episodes, manualSearch=False):
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neededEps = self.findNeededEpisodes(episodes, manualSearch)
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return neededEps
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def listPropers(self, date=None, delimiter="."):
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myDB = self._getDB()
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sql = "SELECT * FROM [" + self.providerID + "] WHERE name LIKE '%.PROPER.%' OR name LIKE '%.REPACK.%'"
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if date != None:
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sql += " AND time >= " + str(int(time.mktime(date.timetuple())))
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return filter(lambda x: x['indexerid'] != 0, myDB.select(sql))
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def findNeededEpisodes(self, episodes, manualSearch=False):
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neededEps = {}
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for epObj in episodes:
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myDB = self._getDB()
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sqlResults = myDB.select(
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"SELECT * FROM [" + self.providerID + "] WHERE indexerid = ? AND season = ? AND episodes LIKE ?",
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[epObj.show.indexerid, epObj.season, "%|" + str(epObj.episode) + "|%"])
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# for each cache entry
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for curResult in sqlResults:
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# skip non-tv crap (but allow them for Newzbin cause we assume it's filtered well)
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if self.providerID != 'newzbin' and not show_name_helpers.filterBadReleases(curResult["name"]):
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continue
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# get the show object, or if it's not one of our shows then ignore it
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try:
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showObj = helpers.findCertainShow(sickbeard.showList, int(curResult["indexerid"]))
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except MultipleShowObjectsException:
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showObj = None
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if not showObj:
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continue
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# get season and ep data (ignoring multi-eps for now)
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curSeason = int(curResult["season"])
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if curSeason == -1:
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continue
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curEp = curResult["episodes"].split("|")[1]
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if not curEp:
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continue
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curEp = int(curEp)
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curQuality = int(curResult["quality"])
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# if the show says we want that episode then add it to the list
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if not showObj.wantEpisode(curSeason, curEp, curQuality, manualSearch):
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logger.log(u"Skipping " + curResult["name"] + " because we don't want an episode that's " +
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Quality.qualityStrings[curQuality], logger.DEBUG)
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else:
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if not epObj:
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epObj = showObj.getEpisode(curSeason, curEp)
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# build a result object
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title = curResult["name"]
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url = curResult["url"]
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logger.log(u"Found result " + title + " at " + url)
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result = self.provider.getResult([epObj])
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result.url = url
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result.name = title
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result.quality = curQuality
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result.content = self.provider.getURL(url) \
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if self.provider.providerType == sickbeard.providers.generic.GenericProvider.TORRENT \
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and not url.startswith('magnet') else None
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# add it to the list
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if epObj not in neededEps:
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neededEps[epObj] = [result]
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else:
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neededEps[epObj].append(result)
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# datetime stamp this search so cache gets cleared
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self.setLastSearch()
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return neededEps
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