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# GNU MediaGoblin -- federated, autonomous media hosting
# Copyright (C) 2011 Free Software Foundation, Inc
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import Image
from mediagoblin.db.util import ObjectId
from celery.task import task
from mediagoblin import mg_globals as mgg
THUMB_SIZE = 200, 200
@task
def process_media_initial(media_id):
workbench = mgg.workbench_manager.create_workbench()
entry = mgg.database.MediaEntry.one(
{'_id': ObjectId(media_id)})
queued_filepath = entry['queued_media_file']
queued_filename = mgg.workbench_manager.localized_file(
workbench, mgg.queue_store, queued_filepath,
'source')
queued_file = file(queued_filename, 'r')
with queued_file:
thumb = Image.open(queued_file)
thumb.thumbnail(THUMB_SIZE, Image.ANTIALIAS)
# ensure color mode is compatible with jpg
if thumb.mode != "RGB":
thumb = thumb.convert("RGB")
thumb_filepath = mgg.public_store.get_unique_filepath(
['media_entries',
unicode(entry['_id']),
'thumbnail.jpg'])
thumb_file = mgg.public_store.get_file(thumb_filepath, 'w')
with thumb_file:
thumb.save(thumb_file, "JPEG")
# we have to re-read because unlike PIL, not everything reads
# things in string representation :)
queued_file = file(queued_filename, 'rb')
with queued_file:
main_filepath = mgg.public_store.get_unique_filepath(
['media_entries',
unicode(entry['_id']),
queued_filepath[-1]])
with mgg.public_store.get_file(main_filepath, 'wb') as main_file:
main_file.write(queued_file.read())
mgg.queue_store.delete_file(queued_filepath)
media_files_dict = entry.setdefault('media_files', {})
media_files_dict['thumb'] = thumb_filepath
media_files_dict['main'] = main_filepath
entry['state'] = u'processed'
entry.save()
# clean up workbench
mgg.workbench_manager.destroy_workbench(workbench)
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