PlexKodiConnect/resources/lib/library_sync/get_metadata.py
2020-12-18 17:43:24 +01:00

122 lines
5.3 KiB
Python

# -*- coding: utf-8 -*-
from logging import getLogger
from . import common
from ..plex_api import API
from .. import backgroundthread, plex_functions as PF, utils, variables as v
LOG = getLogger('PLEX.sync.get_metadata')
LOCK = backgroundthread.threading.Lock()
class GetMetadataThread(common.LibrarySyncMixin,
backgroundthread.KillableThread):
"""
Threaded download of Plex XML metadata for a certain library item.
Fills the queue with the downloaded etree XML objects
"""
def __init__(self, get_metadata_queue, processing_queue):
self.get_metadata_queue = get_metadata_queue
self.processing_queue = processing_queue
super(GetMetadataThread, self).__init__()
def _collections(self, item):
api = API(item['xml'][0])
collection_match = item['section'].collection_match
collection_xmls = item['section'].collection_xmls
if collection_match is None:
collection_match = PF.collections(api.library_section_id())
if collection_match is None:
LOG.error('Could not download collections')
return
# Extract what we need to know
collection_match = \
[(utils.cast(int, x.get('index')),
utils.cast(int, x.get('ratingKey'))) for x in collection_match]
item['children'] = {}
for plex_set_id, set_name in api.collections():
if self.should_cancel():
return
if plex_set_id not in collection_xmls:
# Get Plex metadata for collections - a pain
for index, collection_plex_id in collection_match:
if index == plex_set_id:
collection_xml = PF.GetPlexMetadata(collection_plex_id)
try:
collection_xml[0].attrib
except (TypeError, IndexError, AttributeError):
LOG.error('Could not get collection %s %s',
collection_plex_id, set_name)
continue
collection_xmls[plex_set_id] = collection_xml
break
else:
LOG.error('Did not find Plex collection %s %s',
plex_set_id, set_name)
continue
item['children'][plex_set_id] = collection_xmls[plex_set_id]
def _process_abort(self, count, section):
# Make sure other threads will also receive sentinel
self.get_metadata_queue.put(None)
if count is not None:
self._process_skipped_item(count, section)
def _process_skipped_item(self, count, section):
section.sync_successful = False
# Add a "dummy" item so we're not skipping a beat
self.processing_queue.put((count, {'section': section, 'xml': None}))
def _run(self):
while True:
item = self.get_metadata_queue.get()
try:
if item is None or self.should_cancel():
self._process_abort(item[0] if item else None,
item[2] if item else None)
break
count, plex_id, section = item
item = {
'xml': PF.GetPlexMetadata(plex_id), # This will block
'children': None,
'section': section
}
if item['xml'] is None:
# Did not receive a valid XML - skip that item for now
LOG.error("Could not get metadata for %s. Skipping item "
"for now", plex_id)
self._process_skipped_item(count, section)
continue
elif item['xml'] == 401:
LOG.error('HTTP 401 returned by PMS. Too much strain? '
'Cancelling sync for now')
utils.window('plex_scancrashed', value='401')
self._process_abort(count, section)
break
if section.plex_type == v.PLEX_TYPE_MOVIE:
# Check for collections/sets
collections = False
for child in item['xml'][0]:
if child.tag == 'Collection':
collections = True
break
if collections:
with LOCK:
self._collections(item)
if section.get_children:
if self.should_cancel():
self._process_abort(count, section)
break
children_xml = PF.GetAllPlexChildren(plex_id) # Will block
try:
children_xml[0].attrib
except (TypeError, IndexError, AttributeError):
LOG.error('Could not get children for Plex id %s',
plex_id)
self._process_skipped_item(count, section)
continue
else:
item['children'] = children_xml
self.processing_queue.put((count, item))
finally:
self.get_metadata_queue.task_done()