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#!/usr/bin/env python
"""
ownCloud - News
@author Bernhard Posselt
@copyright 2012 Bernhard Posselt nukeawhale@gmail.com
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
License as published by the Free Software Foundation; either
version 3 of the License, or any later version.
This library 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 library. If not, see <http://www.gnu.org/licenses/>.
"""
import sys
import time
import json
import argparse
import threading
import urllib.request
import urllib.error
class UpdateThread(threading.Thread):
lock = threading.Lock()
def __init__(self, feeds, update_url):
super().__init__()
self.feeds = feeds
self.update_url = update_url
def run(self):
with UpdateThread.lock:
if len(self.feeds) > 0:
feed = self.feeds.pop()
else:
return
# call the update method of one feed
feed['feedId'] = feed['id']
del feed['id']
data = urllib.parse.urlencode(feed)
headers = {
'Content-type': 'application/json',
'Accept': 'text/plain'
}
url = '%s?%s' % (self.update_url, data)
try:
response = urllib.request.urlopen(url)
except urllib.error.HTTPError:
print('%s does not exist' % url)
self.run()
class Updater:
def __init__(self, base_url, thread_num, interval):
self.thread_num = thread_num
self.interval = interval
self.base_url = base_url
if self.base_url[-1] != '/':
self.base_url += '/'
self.base_url += 'index.php/apps/news/api/v1-2'
self.cleanup_url = '%s/cleanup' % self.base_url
self.all_feeds_url = '%s/feeds/all' % self.base_url
self.update_url = '%s/feeds/update' % self.base_url
def run(self):
try:
# run the cleanup request and get all the feeds to update
urllib.request.urlopen(self.cleanup_url)
feeds_response = urllib.request.urlopen(self.all_feeds_url)
feeds_json = feeds_response.read().decode('utf-8')
feeds = json.loads(feeds_json)['feeds']
# start thread_num for feeds
threads = []
for num in range(0, self.thread_num):
thread = UpdateThread(feeds, self.update_url)
thread.start()
threads.append(thread)
for thread in threads:
thread.join()
# wait until the interval finished to run again
time.sleep(self.interval)
self.run()
except ValueError:
print('%s is not a valid URL' % self.base_url)
except urllib.error.HTTPError:
print('%s does not exist' % self.base_url)
exit(1)
def main():
parser = argparse.ArgumentParser()
parser.add_argument('--threads',
help='How many feeds should be fetched in paralell, defaults to 10',
default=10,
type=int)
parser.add_argument('--interval',
help='Update interval between fetching the next round of \
updates in minutes, defaults to 30 minutes',
default=30,
type=int)
parser.add_argument('--user',
help='A username to log into ownCloud', required=True)
parser.add_argument('--password',
help='A password to log into ownCloud', required=True)
parser.add_argument('url',
help='The URL where owncloud is installed')
args = parser.parse_args()
# register user and password for a certain url
auth = urllib.request.HTTPPasswordMgrWithDefaultRealm()
auth.add_password(None, args.url, args.user, args.password)
auth_handler = urllib.request.HTTPBasicAuthHandler(auth)
opener = urllib.request.build_opener(auth_handler)
urllib.request.install_opener(opener)
# create the updater and run the threads
updater = Updater(args.url, args.threads, args.interval)
updater.run()
if __name__ == '__main__':
if sys.version_info < (3, 3):
print('Python 3.3 is required to run this script')
else:
main()
|
