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sync_with_server.py
99 lines | 3.9 KiB | text/x-python | PythonLexer
import re
import logging
import xml.etree.ElementTree as ET
import httplib2
from django.core.management import BaseCommand
from boards.models import GlobalId
from boards.models.post.sync import SyncManager, TAG_ID, TAG_VERSION
__author__ = 'neko259'
REGEX_GLOBAL_ID = re.compile(r'(\w+)::([\w\+/]+)::(\d+)')
class Command(BaseCommand):
help = 'Send a sync or get request to the server.'
def add_arguments(self, parser):
parser.add_argument('url', type=str, help='Server root url')
parser.add_argument('--global-id', type=str, default='',
help='Post global ID')
parser.add_argument('--split-query', type=int, default=1,
help='Split GET query into separate by the given'
' number of posts in one')
parser.add_argument('--thread', type=int,
help='Get posts of one specific thread')
def handle(self, *args, **options):
logger = logging.getLogger('boards.sync')
url = options.get('url')
list_url = url + 'api/sync/list/'
get_url = url + 'api/sync/get/'
file_url = url[:-1]
global_id_str = options.get('global_id')
if global_id_str:
match = REGEX_GLOBAL_ID.match(global_id_str)
if match:
key_type = match.group(1)
key = match.group(2)
local_id = match.group(3)
global_id = GlobalId(key_type=key_type, key=key,
local_id=local_id)
xml = SyncManager.generate_request_get([global_id])
h = httplib2.Http()
response, content = h.request(get_url, method="POST", body=xml)
SyncManager.parse_response_get(content, file_url)
else:
raise Exception('Invalid global ID')
else:
logger.info('Running LIST request...')
h = httplib2.Http()
xml = SyncManager.generate_request_list(
opening_post=options.get('thread'))
response, content = h.request(list_url, method="POST", body=xml)
logger.info('Processing response...')
root = ET.fromstring(content)
status = root.findall('status')[0].text
if status == 'success':
ids_to_sync = list()
models = root.findall('models')[0]
for model in models:
tag_id = model.find(TAG_ID)
global_id, exists = GlobalId.from_xml_element(tag_id)
tag_version = model.find(TAG_VERSION)
if tag_version is not None:
version = int(tag_version.text) or 1
else:
version = 1
if not exists or global_id.post.version < version:
logger.debug('Processed (+) post {}'.format(global_id))
ids_to_sync.append(global_id)
else:
logger.debug('* Processed (-) post {}'.format(global_id))
logger.info('Starting sync...')
if len(ids_to_sync) > 0:
limit = options.get('split_query', len(ids_to_sync))
for offset in range(0, len(ids_to_sync), limit):
xml = SyncManager.generate_request_get(ids_to_sync[offset:offset + limit])
h = httplib2.Http()
logger.info('Running GET request...')
response, content = h.request(get_url, method="POST", body=xml)
logger.info('Processing response...')
SyncManager.parse_response_get(content, file_url)
else:
logger.info('Nothing to get, everything synced')
else:
raise Exception('Invalid response status')