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Sub-Zero.bundle/Contents/Code/support/tasks.py
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Python
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# coding=utf-8
import datetime
import time
import operator
import traceback
from urllib2 import URLError
from subliminal_patch.score import compute_score
from subliminal_patch.core import download_subtitles
from subliminal import list_subtitles as list_all_subtitles
from babelfish import Language
from missing_subtitles import items_get_all_missing_subs, refresh_item
from scheduler import scheduler
from storage import save_subtitles, whack_missing_parts, get_subtitle_storage
from support.config import config
from support.items import get_recent_items, is_ignored, get_item
from support.lib import Plex
from support.helpers import track_usage, get_title_for_video_metadata, cast_bool, PartUnknownException
from support.plex_media import scan_videos, get_plex_metadata
class Task(object):
name = None
scheduler = None
periodic = False
running = False
time_start = None
data = None
stored_attributes = ("last_run", "last_run_time", "running")
default_data = {"last_run": None, "last_run_time": None, "running": False, "data": {}}
# task ready for being status-displayed?
ready_for_display = False
def __init__(self, scheduler):
self.name = self.get_class_name()
self.ready_for_display = False
self.time_start = None
self.scheduler = scheduler
self.setup_defaults()
self.running = False
def get_class_name(self):
return getattr(getattr(self, "__class__"), "__name__")
def __getattribute__(self, name):
if name in object.__getattribute__(self, "stored_attributes"):
return Dict["tasks"].get(self.name, {}).get(name, None)
return object.__getattribute__(self, name)
def __setattr__(self, name, value):
if name in object.__getattribute__(self, "stored_attributes"):
Dict["tasks"][self.name][name] = value
Dict.Save()
return
object.__setattr__(self, name, value)
def setup_defaults(self):
if self.name not in Dict["tasks"]:
Dict["tasks"][self.name] = self.default_data.copy()
return
sd = Dict["tasks"][self.name]
# forward-migration
for key, def_value in self.default_data.iteritems():
hasval = key in sd
if not hasval:
sd[key] = def_value
def signal(self, *args, **kwargs):
raise NotImplementedError
def prepare(self, *args, **kwargs):
return
def run(self):
Log.Info(u"Task: running: %s", self.name)
self.time_start = datetime.datetime.now()
def post_run(self, data_holder):
self.running = False
self.last_run = datetime.datetime.now()
if self.time_start and self.last_run:
self.last_run_time = self.last_run - self.time_start
self.time_start = None
Log.Info(u"Task: ran: %s", self.name)
class SearchAllRecentlyAddedMissing(Task):
periodic = True
items_done = None
items_searching = None
items_searching_ids = None
items_failed = None
percentage = 0
stall_time = 30
def __init__(self, scheduler):
super(SearchAllRecentlyAddedMissing, self).__init__(scheduler)
self.items_done = None
self.items_searching = None
self.items_searching_ids = None
self.items_failed = None
self.percentage = 0
def signal(self, signal_name, *args, **kwargs):
handler = getattr(self, "signal_%s" % signal_name)
return handler(*args, **kwargs) if handler else None
def signal_updated_metadata(self, *args, **kwargs):
item_id = int(args[0])
if self.items_searching_ids is not None and item_id in self.items_searching_ids:
self.items_done.append(item_id)
return True
def prepare(self, *args, **kwargs):
self.items_done = []
recent_items = get_recent_items()
missing = items_get_all_missing_subs(recent_items, sleep_after_request=0.2)
ids = set([id for added_at, id, title, item, missing_languages in missing if not is_ignored(id, item=item)])
self.items_searching = missing
self.items_searching_ids = ids
self.items_failed = []
self.percentage = 0
self.ready_for_display = True
def run(self):
super(SearchAllRecentlyAddedMissing, self).run()
self.running = True
missing_count = len(self.items_searching)
items_done_count = 0
for added_at, item_id, title, item, missing_languages in self.items_searching:
Log.Debug(u"Task: %s, triggering refresh for %s (%s)", self.name, title, item_id)
try:
refresh_item(item_id)
except URLError:
# timeout
pass
search_started = datetime.datetime.now()
tries = 1
while 1:
if item_id in self.items_done:
items_done_count += 1
self.percentage = int(items_done_count * 100 / missing_count)
Log.Debug(u"Task: %s, item %s done (%s%%, %s/%s)", self.name, item_id, self.percentage,
items_done_count, missing_count)
break
# item considered stalled after self.stall_time seconds passed after last refresh
if (datetime.datetime.now() - search_started).total_seconds() > self.stall_time:
if tries > 3:
self.items_failed.append(item_id)
Log.Debug(u"Task: %s, item stalled for %s times: %s, skipping", self.name, tries, item_id)
break
Log.Debug(u"Task: %s, item stalled for %s seconds: %s, retrying", self.name, self.stall_time,
item_id)
tries += 1
try:
refresh_item(item_id)
except URLError:
pass
search_started = datetime.datetime.now()
time.sleep(1)
time.sleep(0.1)
# we can't hammer the PMS, otherwise requests will be stalled
time.sleep(5)
Log.Debug("Task: %s, done (%s%%, %s/%s). Failed items: %s", self.name, self.percentage,
items_done_count, missing_count, self.items_failed)
self.running = False
def post_run(self, task_data):
super(SearchAllRecentlyAddedMissing, self).post_run(task_data)
self.ready_for_display = False
self.percentage = 0
self.items_done = None
self.items_failed = None
self.items_searching = None
self.items_searching_ids = None
class SubtitleListingMixin(object):
def list_subtitles(self, rating_key, item_type, part_id, language, skip_wrong_fps=True):
metadata = get_plex_metadata(rating_key, part_id, item_type)
if not metadata:
return
scanned_parts = scan_videos([metadata], kind="series" if item_type == "episode" else "movie", ignore_all=True)
if not scanned_parts:
Log.Error("Couldn't list available subtitles for %s", rating_key)
return
video, plex_part = scanned_parts.items()[0]
config.init_subliminal_patches()
provider_settings = config.provider_settings.copy()
if not skip_wrong_fps:
provider_settings = config.provider_settings.copy()
provider_settings["opensubtitles"]["skip_wrong_fps"] = False
if item_type == "episode":
min_score = 240
if video.is_special:
min_score = 180
else:
min_score = 60
available_subs = list_all_subtitles(scanned_parts, {Language.fromietf(language)},
providers=config.providers,
provider_configs=provider_settings,
pool_class=config.provider_pool)
use_hearing_impaired = Prefs['subtitles.search.hearingImpaired'] in ("prefer", "force HI")
# sort subtitles by score
unsorted_subtitles = []
for s in available_subs[video]:
Log.Debug("Starting score computation for %s", s)
try:
matches = s.get_matches(video)
except AttributeError:
Log.Error("Match computation failed for %s: %s", s, traceback.format_exc())
continue
unsorted_subtitles.append(
(s, compute_score(matches, s, video, hearing_impaired=use_hearing_impaired), matches))
scored_subtitles = sorted(unsorted_subtitles, key=operator.itemgetter(1), reverse=True)
subtitles = []
for subtitle, score, matches in scored_subtitles:
# check score
if score < min_score:
Log.Info('Score %d is below min_score (%d)', score, min_score)
continue
subtitle.score = score
subtitle.matches = matches
subtitle.part_id = part_id
subtitle.item_type = item_type
subtitles.append(subtitle)
return subtitles
class DownloadSubtitleMixin(object):
def download_subtitle(self, subtitle, rating_key, mode="m"):
from interface.menu_helpers import set_refresh_menu_state
item_type = subtitle.item_type
part_id = subtitle.part_id
metadata = get_plex_metadata(rating_key, part_id, item_type)
scanned_parts = scan_videos([metadata], kind="series" if item_type == "episode" else "movie", ignore_all=True)
video, plex_part = scanned_parts.items()[0]
# downloaded_subtitles = {subliminal.Video: [subtitle, subtitle, ...]}
download_subtitles([subtitle], providers=config.providers, provider_configs=config.provider_settings,
pool_class=config.provider_pool)
download_successful = False
if subtitle.content:
try:
whack_missing_parts(scanned_parts)
save_subtitles(scanned_parts, {video: [subtitle]}, mode=mode, mods=config.default_mods)
Log.Debug("Manually downloaded subtitle for: %s", rating_key)
download_successful = True
refresh_item(rating_key)
track_usage("Subtitle", "manual", "download", 1)
except:
Log.Error("Something went wrong when downloading specific subtitle: %s", traceback.format_exc())
finally:
set_refresh_menu_state(None)
if download_successful:
# store item in history
from support.history import get_history
item_title = get_title_for_video_metadata(metadata, add_section_title=False)
history = get_history()
history.add(item_title, video.id, section_title=video.plexapi_metadata["section"],
subtitle=subtitle,
mode=mode)
else:
set_refresh_menu_state("Subtitle download failed (%s)" % rating_key)
return download_successful
class AvailableSubsForItem(SubtitleListingMixin, Task):
item_type = None
part_id = None
language = None
rating_key = None
def prepare(self, *args, **kwargs):
self.item_type = kwargs.get("item_type")
self.part_id = kwargs.get("part_id")
self.language = kwargs.get("language")
self.rating_key = kwargs.get("rating_key")
def setup_defaults(self):
super(AvailableSubsForItem, self).setup_defaults()
# reset any previous data
Dict["tasks"][self.name]["data"] = {}
def run(self):
super(AvailableSubsForItem, self).run()
self.running = True
track_usage("Subtitle", "manual", "list", 1)
subs = self.list_subtitles(self.rating_key, self.item_type, self.part_id, self.language, skip_wrong_fps=False)
if not subs:
self.data = None
return
# we can't have nasty unpicklable stuff like ZipFile, BytesIO etc in self.data
self.data = [s.make_picklable() for s in subs]
def post_run(self, task_data):
super(AvailableSubsForItem, self).post_run(task_data)
if self.rating_key not in task_data:
task_data[self.rating_key] = {}
task_data[self.rating_key][self.language] = self.data
class DownloadSubtitleForItem(DownloadSubtitleMixin, Task):
subtitle = None
rating_key = None
def prepare(self, *args, **kwargs):
self.subtitle = kwargs["subtitle"]
self.rating_key = kwargs["rating_key"]
def run(self):
super(DownloadSubtitleForItem, self).run()
self.running = True
self.download_subtitle(self.subtitle, self.rating_key)
self.running = False
class MissingSubtitles(Task):
rating_key = None
item_type = None
part_id = None
language = None
def run(self):
super(MissingSubtitles, self).run()
self.running = True
self.data = []
recent_items = get_recent_items()
if recent_items:
self.data = items_get_all_missing_subs(recent_items)
def post_run(self, task_data):
super(MissingSubtitles, self).post_run(task_data)
task_data["missing_subtitles"] = self.data
class FindBetterSubtitles(DownloadSubtitleMixin, SubtitleListingMixin, Task):
periodic = True
# TV: episode, format, series, year, season, video_codec, release_group, hearing_impaired, resolution
series_cutoff = 357
# movies: format, title, release_group, year, video_codec, resolution, hearing_impaired
movies_cutoff = 117
def signal_updated_metadata(self, *args, **kwargs):
return True
def run(self):
super(FindBetterSubtitles, self).run()
self.running = True
better_found = 0
try:
max_search_days = int(Prefs["scheduler.tasks.FindBetterSubtitles.max_days_after_added"].strip())
except ValueError:
Log.Error("Please only put numbers into the FindBetterSubtitles.max_days_after_added setting. Exiting")
return
else:
if max_search_days > 30:
Log.Error("FindBetterSubtitles.max_days_after_added is too big. Max is 30 days.")
return
now = datetime.datetime.now()
min_score_series = int(Prefs["subtitles.search.minimumTVScore2"].strip())
min_score_movies = int(Prefs["subtitles.search.minimumMovieScore2"].strip())
overwrite_manually_modified = cast_bool(
Prefs["scheduler.tasks.FindBetterSubtitles.overwrite_manually_modified"])
overwrite_manually_selected = cast_bool(
Prefs["scheduler.tasks.FindBetterSubtitles.overwrite_manually_selected"])
subtitle_storage = get_subtitle_storage()
recent_subs = subtitle_storage.load_recent_files(age_days=max_search_days)
viable_item_count = 0
for fn, stored_subs in recent_subs.iteritems():
video_id = stored_subs.video_id
if stored_subs.item_type == "episode":
cutoff = self.series_cutoff
min_score = min_score_series
else:
cutoff = self.movies_cutoff
min_score = min_score_movies
# don't search for better subtitles until at least 30 minutes have passed
if stored_subs.added_at + datetime.timedelta(minutes=30) > now:
Log.Debug("Item %s too new, skipping", video_id)
continue
# added_date <= max_search_days?
if stored_subs.added_at + datetime.timedelta(days=max_search_days) <= now:
continue
viable_item_count += 1
ditch_parts = []
# look through all stored subtitle data
for part_id, languages in stored_subs.parts.iteritems():
part_id = str(part_id)
# all languages
for language, current_subs in languages.iteritems():
current_key = current_subs.get("current")
current = current_subs.get(current_key)
# currently got subtitle?
if not current:
continue
current_score = current.score
current_mode = current.mode
# late cutoff met? skip
if current_score >= cutoff:
Log.Debug(u"Skipping finding better subs, cutoff met (current: %s, cutoff: %s): %s (%s)",
current_score, cutoff, stored_subs.title, video_id)
continue
# got manual subtitle but don't want to touch those?
if current_mode == "m" and not overwrite_manually_selected:
Log.Debug(u"Skipping finding better subs, had manual: %s (%s)", stored_subs.title, video_id)
continue
# subtitle modifications different from default
if not overwrite_manually_modified and current.mods \
and set(current.mods).difference(set(config.default_mods)):
Log.Debug(u"Skipping finding better subs, it has manual modifications: %s (%s)",
stored_subs.title, video_id)
continue
try:
subs = self.list_subtitles(video_id, stored_subs.item_type, part_id, language)
except PartUnknownException:
Log.Info("Part %s unknown/gone; ditching subtitle info", part_id)
ditch_parts.append(part_id)
continue
if subs:
# subs are already sorted by score
better_downloaded = False
better_tried_download = 0
for sub in subs:
if sub.score > current_score and sub.score > min_score:
Log.Debug("Better subtitle found for %s, downloading", video_id)
better_tried_download += 1
ret = self.download_subtitle(sub, video_id, mode="b")
if ret:
better_found += 1
better_downloaded = True
break
else:
Log.Debug("Couldn't download/save subtitle. Continuing to the next one")
if better_tried_download and not better_downloaded:
Log.Debug("Tried downloading better subtitle for %s, but every try failed.", video_id)
elif better_downloaded:
Log.Debug("Better subtitle downloaded for %s", video_id)
if ditch_parts:
for part_id in ditch_parts:
try:
del stored_subs.parts[part_id]
except KeyError:
pass
subtitle_storage.save(stored_subs)
time.sleep(1)
if better_found:
Log.Debug("Task: %s, done. Better subtitles found for %s/%s items", self.name, better_found,
viable_item_count)
else:
Log.Debug("Task: %s, done. No better subtitles found for %s items", self.name, viable_item_count)
class SubtitleStorageMaintenance(Task):
periodic = True
frequency = "every 7 days"
def run(self):
super(SubtitleStorageMaintenance, self).run()
self.running = True
Log.Info("Running subtitle storage maintenance")
storage = get_subtitle_storage()
deleted_items = storage.delete_missing_files()
if deleted_items:
Log.Info("Subtitle information for %d non-existant videos have been cleaned up" % len(deleted_items))
Log.Debug("Videos: %s" % deleted_items)
else:
Log.Info("Nothing to do")
class MenuHistoryMaintenance(Task):
periodic = True
frequency = "every 7 days"
def run(self):
super(MenuHistoryMaintenance, self).run()
self.running = True
Log.Info("Running menu history maintenance")
now = datetime.datetime.now()
if "menu_history" in Dict:
for key, timeout in Dict["menu_history"].copy().items():
if now > timeout:
try:
del Dict["menu_history"][key]
except:
pass
class MigrateSubtitleStorage(Task):
periodic = False
frequency = None
def run(self):
super(MigrateSubtitleStorage, self).run()
self.running = True
Log.Info("Running subtitle storage migration")
storage = get_subtitle_storage()
for fn in storage.get_all_files():
if fn.endswith(".json.gz"):
continue
Log.Debug("Migrating %s", fn)
storage.load(None, fn)
scheduler.register(SearchAllRecentlyAddedMissing)
scheduler.register(AvailableSubsForItem)
scheduler.register(DownloadSubtitleForItem)
scheduler.register(MissingSubtitles)
scheduler.register(FindBetterSubtitles)
scheduler.register(SubtitleStorageMaintenance)
scheduler.register(MigrateSubtitleStorage)
scheduler.register(MenuHistoryMaintenance)