mirror of
https://github.com/JimmXinu/FanFicFare.git
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111 lines
3.6 KiB
Python
111 lines
3.6 KiB
Python
#!/usr/bin/env python
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# encoding: utf-8
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# Copyright 2011 Fanficdownloader team
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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"""
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remover.py
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Created by Roman on 2010-06-20.
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Copyright 2011 Fanficdownloader team
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"""
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import datetime
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import logging
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from google.appengine.ext.webapp import util
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from google.appengine.ext import webapp
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from google.appengine.api import users
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from google.appengine.api import taskqueue
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from google.appengine.api import memcache
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from ffstorage import *
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class Remover(webapp.RequestHandler):
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def get(self):
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logging.debug("Starting r3m0v3r")
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user = users.get_current_user()
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logging.debug("Working as user %s" % user)
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theDate = datetime.datetime.now() - datetime.timedelta(days=7) # days=7
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logging.debug("Will delete stuff older than %s" % theDate)
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fics = DownloadMeta.all()
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fics.filter("date <",theDate).order("date")
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results = fics.fetch(100)
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logging.debug([x.name for x in results])
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num=0
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for d in results:
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d.delete()
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for c in d.data_chunks:
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c.delete()
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num += 1
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logging.debug('Delete '+d.url)
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logging.info('Deleted instances: %d' % num)
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self.response.out.write('Deleted instances: %d<br>' % num)
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class RemoveOrphanDataChunks(webapp.RequestHandler):
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def get(self):
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logging.debug("Starting RemoveOrphanDataChunks")
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user = users.get_current_user()
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logging.debug("Working as user %s" % user)
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## Can't search for all chunks in web req because it's too
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## long. Can't do it in a queue task, because it's still too
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## long. Can't try ordering by id or download because the ids
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## are not increasing. Instead, use a saved cursor to walk
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## all the way through over time, then starting at the top
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## again when finished.
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chunks = DownloadData.all()
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cursor = memcache.get('orphan_search_cursor')
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if cursor:
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chunks.with_cursor(cursor)
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deleted = 0
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num = 0
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results = chunks.fetch(100)
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for d in results:
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## This is the only way to test for orphans I could find.
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try:
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meta = d.download
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except db.ReferencePropertyResolveError:
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## delete orphan chunk.
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d.delete()
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deleted += 1
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num += 1
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if num == 0:
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memcache.delete('orphan_search_cursor')
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logging.warn('Orphan search reached end, starting over next time.')
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else:
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memcache.set('orphan_search_cursor',chunks.cursor())
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logging.info('Deleted %d orphan chunks from %d total.' % (deleted,num))
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self.response.out.write('Deleted %d orphan chunks from %d total.' % (deleted,num))
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def main():
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application = webapp.WSGIApplication([('/r3m0v3r', Remover),
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('/r3m0v3rOrphans', RemoveOrphanDataChunks)],
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debug=False)
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util.run_wsgi_app(application)
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if __name__ == '__main__':
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logging.getLogger().setLevel(logging.DEBUG)
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main()
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