51f47452f2
- Partially fixes #451 - you can now disable image caching during playback
271 lines
10 KiB
Python
271 lines
10 KiB
Python
# -*- coding: utf-8 -*-
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###############################################################################
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from logging import getLogger
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from Queue import Queue, Empty
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from shutil import rmtree
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from urllib import quote_plus, unquote
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from threading import Thread
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from os import makedirs
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import requests
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from xbmc import sleep, translatePath
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from xbmcvfs import exists
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from utils import window, settings, language as lang, kodi_sql, try_encode, \
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thread_methods, dialog, exists_dir, try_decode
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import state
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###############################################################################
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LOG = getLogger("PLEX." + __name__)
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# Disable annoying requests warnings
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requests.packages.urllib3.disable_warnings()
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ARTWORK_QUEUE = Queue()
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IMAGE_CACHING_SUSPENDS = ['SUSPEND_LIBRARY_THREAD', 'DB_SCAN', 'STOP_SYNC']
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if not settings('imageSyncDuringPlayback') == 'true':
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IMAGE_CACHING_SUSPENDS.append('SUSPEND_SYNC')
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###############################################################################
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def double_urlencode(text):
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return quote_plus(quote_plus(text))
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def double_urldecode(text):
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return unquote(unquote(text))
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@thread_methods(add_suspends=IMAGE_CACHING_SUSPENDS)
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class Image_Cache_Thread(Thread):
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sleep_between = 50
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# Potentially issues with limited number of threads
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# Hence let Kodi wait till download is successful
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timeout = (35.1, 35.1)
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def __init__(self):
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self.queue = ARTWORK_QUEUE
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Thread.__init__(self)
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def run(self):
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LOG.info("---===### Starting Image_Cache_Thread ###===---")
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stopped = self.stopped
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suspended = self.suspended
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queue = self.queue
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sleep_between = self.sleep_between
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while not stopped():
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# In the event the server goes offline
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while suspended():
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# Set in service.py
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if stopped():
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# Abort was requested while waiting. We should exit
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LOG.info("---===### Stopped Image_Cache_Thread ###===---")
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return
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sleep(1000)
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try:
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url = queue.get(block=False)
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except Empty:
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sleep(1000)
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continue
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sleeptime = 0
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while True:
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try:
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requests.head(
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url="http://%s:%s/image/image://%s"
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% (state.WEBSERVER_HOST,
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state.WEBSERVER_PORT,
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url),
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auth=(state.WEBSERVER_USERNAME,
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state.WEBSERVER_PASSWORD),
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timeout=self.timeout)
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except requests.Timeout:
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# We don't need the result, only trigger Kodi to start the
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# download. All is well
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break
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except requests.ConnectionError:
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if stopped():
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# Kodi terminated
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break
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# Server thinks its a DOS attack, ('error 10053')
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# Wait before trying again
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if sleeptime > 5:
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LOG.error('Repeatedly got ConnectionError for url %s',
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double_urldecode(url))
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break
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LOG.debug('Were trying too hard to download art, server '
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'over-loaded. Sleep %s seconds before trying '
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'again to download %s',
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2**sleeptime, double_urldecode(url))
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sleep((2**sleeptime)*1000)
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sleeptime += 1
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continue
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except Exception as e:
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LOG.error('Unknown exception for url %s: %s'.
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double_urldecode(url), e)
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import traceback
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LOG.error("Traceback:\n%s", traceback.format_exc())
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break
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# We did not even get a timeout
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break
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queue.task_done()
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# Sleep for a bit to reduce CPU strain
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sleep(sleep_between)
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LOG.info("---===### Stopped Image_Cache_Thread ###===---")
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class Artwork():
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enableTextureCache = settings('enableTextureCache') == "true"
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if enableTextureCache:
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queue = ARTWORK_QUEUE
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def fullTextureCacheSync(self):
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"""
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This method will sync all Kodi artwork to textures13.db
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and cache them locally. This takes diskspace!
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"""
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if not dialog('yesno', "Image Texture Cache", lang(39250)):
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return
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LOG.info("Doing Image Cache Sync")
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# ask to rest all existing or not
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if dialog('yesno', "Image Texture Cache", lang(39251)):
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LOG.info("Resetting all cache data first")
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# Remove all existing textures first
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path = try_decode(translatePath("special://thumbnails/"))
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if exists_dir(path):
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rmtree(path, ignore_errors=True)
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self.restore_cache_directories()
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# remove all existing data from texture DB
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connection = kodi_sql('texture')
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cursor = connection.cursor()
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query = 'SELECT tbl_name FROM sqlite_master WHERE type=?'
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cursor.execute(query, ('table', ))
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rows = cursor.fetchall()
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for row in rows:
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tableName = row[0]
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if tableName != "version":
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cursor.execute("DELETE FROM %s" % tableName)
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connection.commit()
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connection.close()
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# Cache all entries in video DB
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connection = kodi_sql('video')
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cursor = connection.cursor()
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# dont include actors
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query = "SELECT url FROM art WHERE media_type != ?"
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cursor.execute(query, ('actor', ))
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result = cursor.fetchall()
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total = len(result)
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LOG.info("Image cache sync about to process %s video images", total)
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connection.close()
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for url in result:
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self.cache_texture(url[0])
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# Cache all entries in music DB
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connection = kodi_sql('music')
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cursor = connection.cursor()
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cursor.execute("SELECT url FROM art")
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result = cursor.fetchall()
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total = len(result)
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LOG.info("Image cache sync about to process %s music images", total)
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connection.close()
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for url in result:
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self.cache_texture(url[0])
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def cache_texture(self, url):
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'''
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Cache a single image url to the texture cache
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'''
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if url and self.enableTextureCache:
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self.queue.put(double_urlencode(try_encode(url)))
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def modify_artwork(self, artworks, kodi_id, kodi_type, cursor):
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"""
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Pass in an artworks dict (see PlexAPI) to set an items artwork.
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"""
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for kodi_art, url in artworks.iteritems():
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self.modify_art(url, kodi_id, kodi_type, kodi_art, cursor)
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def modify_art(self, url, kodi_id, kodi_type, kodi_art, cursor):
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"""
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Adds or modifies the artwork of kind kodi_art (e.g. 'poster') in the
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Kodi art table for item kodi_id/kodi_type. Will also cache everything
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except actor portraits.
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"""
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query = '''
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SELECT url FROM art
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WHERE media_id = ? AND media_type = ? AND type = ?
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LIMIT 1
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'''
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cursor.execute(query, (kodi_id, kodi_type, kodi_art,))
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try:
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# Update the artwork
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old_url = cursor.fetchone()[0]
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except TypeError:
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# Add the artwork
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LOG.debug('Adding Art Link for %s kodi_id %s, kodi_type %s: %s',
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kodi_art, kodi_id, kodi_type, url)
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query = '''
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INSERT INTO art(media_id, media_type, type, url)
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VALUES (?, ?, ?, ?)
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'''
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cursor.execute(query, (kodi_id, kodi_type, kodi_art, url))
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else:
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if url == old_url:
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# Only cache artwork if it changed
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return
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self.delete_cached_artwork(old_url)
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LOG.debug("Updating Art url for %s kodi_id %s, kodi_type %s to %s",
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kodi_art, kodi_id, kodi_type, url)
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query = '''
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UPDATE art SET url = ?
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WHERE media_id = ? AND media_type = ? AND type = ?
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'''
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cursor.execute(query, (url, kodi_id, kodi_type, kodi_art))
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# Cache fanart and poster in Kodi texture cache
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if kodi_type != 'actor':
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self.cache_texture(url)
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def delete_artwork(self, kodiId, mediaType, cursor):
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query = 'SELECT url FROM art WHERE media_id = ? AND media_type = ?'
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cursor.execute(query, (kodiId, mediaType,))
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for row in cursor.fetchall():
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self.delete_cached_artwork(row[0])
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@staticmethod
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def delete_cached_artwork(url):
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"""
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Deleted the cached artwork with path url (if it exists)
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"""
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connection = kodi_sql('texture')
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cursor = connection.cursor()
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try:
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cursor.execute("SELECT cachedurl FROM texture WHERE url=? LIMIT 1",
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(url,))
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cachedurl = cursor.fetchone()[0]
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except TypeError:
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# Could not find cached url
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pass
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else:
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# Delete thumbnail as well as the entry
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path = translatePath("special://thumbnails/%s" % cachedurl)
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LOG.debug("Deleting cached thumbnail: %s", path)
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if exists(path):
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rmtree(try_decode(path), ignore_errors=True)
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cursor.execute("DELETE FROM texture WHERE url = ?", (url,))
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connection.commit()
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finally:
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connection.close()
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@staticmethod
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def restore_cache_directories():
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LOG.info("Restoring cache directories...")
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paths = ("", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9",
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"a", "b", "c", "d", "e", "f",
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"Video", "plex")
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for path in paths:
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makedirs(try_decode(translatePath("special://thumbnails/%s"
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% path)))
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