server/sources/datafeed.py
author Julien Cristau <julien.cristau@logilab.fr>
Fri, 24 Jul 2015 16:19:39 +0200
changeset 10581 7846d26ff91d
parent 10551 1182f5f16a3d
child 10603 65ad6980976e
permissions -rw-r--r--
[server/sources] use decode_extid in datafeed
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# copyright 2010-2014 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
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# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
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#
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# This file is part of CubicWeb.
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#
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# CubicWeb is free software: you can redistribute it and/or modify it under the
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# terms of the GNU Lesser General Public License as published by the Free
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# Software Foundation, either version 2.1 of the License, or (at your option)
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# any later version.
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#
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# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Lesser General Public License along
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# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
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"""datafeed sources: copy data from an external data stream into the system
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database
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"""
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import urllib2
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import StringIO
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from os.path import exists
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from datetime import datetime, timedelta
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from cookielib import CookieJar
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import urlparse
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from lxml import etree
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from cubicweb import RegistryNotFound, ObjectNotFound, ValidationError, UnknownEid
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from cubicweb.server.repository import preprocess_inlined_relations
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from cubicweb.server.sources import AbstractSource
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from cubicweb.appobject import AppObject
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class DataFeedSource(AbstractSource):
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    use_cwuri_as_url = True
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    options = (
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        ('synchronize',
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         {'type' : 'yn',
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          'default': True,
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          'help': ('Is the repository responsible to automatically import '
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                   'content from this source? '
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                   'You should say yes unless you don\'t want this behaviour '
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                   'or if you use a multiple repositories setup, in which '
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                   'case you should say yes on one repository, no on others.'),
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          'group': 'datafeed-source', 'level': 2,
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          }),
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        ('synchronization-interval',
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         {'type' : 'time',
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          'default': '5min',
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          'help': ('Interval in seconds between synchronization with the '
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                   'external source (default to 5 minutes, must be >= 1 min).'),
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          'group': 'datafeed-source', 'level': 2,
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          }),
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        ('max-lock-lifetime',
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         {'type' : 'time',
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          'default': '1h',
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          'help': ('Maximum time allowed for a synchronization to be run. '
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                   'Exceeded that time, the synchronization will be considered '
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                   'as having failed and not properly released the lock, hence '
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                   'it won\'t be considered'),
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          'group': 'datafeed-source', 'level': 2,
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          }),
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        ('delete-entities',
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         {'type' : 'yn',
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          'default': False,
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          'help': ('Should already imported entities not found anymore on the '
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                   'external source be deleted?'),
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          'group': 'datafeed-source', 'level': 2,
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          }),
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        ('logs-lifetime',
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         {'type': 'time',
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          'default': '10d',
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          'help': ('Time before logs from datafeed imports are deleted.'),
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          'group': 'datafeed-source', 'level': 2,
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          }),
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        ('http-timeout',
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         {'type': 'time',
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          'default': '1min',
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          'help': ('Timeout of HTTP GET requests, when synchronizing a source.'),
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          'group': 'datafeed-source', 'level': 2,
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          }),
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        ('use-cwuri-as-url',
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         {'type': 'yn',
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          'default': None, # explicitly unset
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          'help': ('Use cwuri (i.e. external URL) for link to the entity '
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                   'instead of its local URL.'),
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          'group': 'datafeed-source', 'level': 1,
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          }),
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        )
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    def check_config(self, source_entity):
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        """check configuration of source entity"""
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        typed_config = super(DataFeedSource, self).check_config(source_entity)
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        if typed_config['synchronization-interval'] < 60:
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            _ = source_entity._cw._
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            msg = _('synchronization-interval must be greater than 1 minute')
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            raise ValidationError(source_entity.eid, {'config': msg})
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        return typed_config
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    def _entity_update(self, source_entity):
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   104
        super(DataFeedSource, self)._entity_update(source_entity)
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   105
        self.parser_id = source_entity.parser
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   106
        self.latest_retrieval = source_entity.latest_retrieval
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parents: 8187
diff changeset
   107
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   108
    def update_config(self, source_entity, typed_config):
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   109
        """update configuration from source entity. `typed_config` is config
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   110
        properly typed with defaults set
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   111
        """
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   112
        super(DataFeedSource, self).update_config(source_entity, typed_config)
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   113
        self.synchro_interval = timedelta(seconds=typed_config['synchronization-interval'])
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   114
        self.max_lock_lifetime = timedelta(seconds=typed_config['max-lock-lifetime'])
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75493f6ca586 [datafeed] add a timeout config option (closes #2745677)
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diff changeset
   115
        self.http_timeout = typed_config['http-timeout']
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   116
        # if typed_config['use-cwuri-as-url'] is set, we have to update
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   117
        # use_cwuri_as_url attribute and public configuration dictionary
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   118
        # accordingly
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   119
        if typed_config['use-cwuri-as-url'] is not None:
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   120
            self.use_cwuri_as_url = typed_config['use-cwuri-as-url']
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   121
            self.public_config['use-cwuri-as-url'] = self.use_cwuri_as_url
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   122
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   123
    def init(self, activated, source_entity):
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   124
        super(DataFeedSource, self).init(activated, source_entity)
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   125
        self.parser_id = source_entity.parser
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   126
        self.load_mapping(source_entity._cw)
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   127
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   128
    def _get_parser(self, cnx, **kwargs):
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   129
        if self.parser_id is None:
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   130
            self.warning('No parser defined on source %r', self)
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   131
            raise ObjectNotFound()
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   132
        return self.repo.vreg['parsers'].select(
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   133
            self.parser_id, cnx, source=self, **kwargs)
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   134
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   135
    def load_mapping(self, cnx):
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   136
        self.mapping = {}
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   137
        self.mapping_idx = {}
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   138
        try:
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   139
            parser = self._get_parser(cnx)
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   140
        except (RegistryNotFound, ObjectNotFound):
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   141
            return # no parser yet, don't go further
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   142
        self._load_mapping(cnx, parser=parser)
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   143
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   144
    def add_schema_config(self, schemacfg, checkonly=False, parser=None):
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   145
        """added CWSourceSchemaConfig, modify mapping accordingly"""
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   146
        if parser is None:
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   147
            parser = self._get_parser(schemacfg._cw)
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   148
        parser.add_schema_config(schemacfg, checkonly)
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   149
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   150
    def del_schema_config(self, schemacfg, checkonly=False, parser=None):
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   151
        """deleted CWSourceSchemaConfig, modify mapping accordingly"""
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   152
        if parser is None:
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   153
            parser = self._get_parser(schemacfg._cw)
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   154
        parser.del_schema_config(schemacfg, checkonly)
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   155
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   156
    def fresh(self):
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   157
        if self.latest_retrieval is None:
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   158
            return False
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diff changeset
   159
        return datetime.utcnow() < (self.latest_retrieval + self.synchro_interval)
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   160
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   161
    def update_latest_retrieval(self, cnx):
7446
6fba86efdd09 [datafeed] extract some methods from pull_data to ease writing custom datafeed sources
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   162
        self.latest_retrieval = datetime.utcnow()
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   163
        cnx.execute('SET X latest_retrieval %(date)s WHERE X eid %(x)s',
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   164
                    {'x': self.eid, 'date': self.latest_retrieval})
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   165
        cnx.commit()
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diff changeset
   166
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   167
    def acquire_synchronization_lock(self, cnx):
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   168
        # XXX race condition until WHERE of SET queries is executed using
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   169
        # 'SELECT FOR UPDATE'
7921
a93e2ed5877a [datafeed] add max-lifetime for concurrent synchronization lock (closes #1908676)
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diff changeset
   170
        now = datetime.utcnow()
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diff changeset
   171
        if not cnx.execute(
7933
b25dda2214a2 [datafeed] remove remaining uses of 'synchronizing' attribute replaced by 'in_synchronization' in 3.13.8. Closes #1989131
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diff changeset
   172
            'SET X in_synchronization %(now)s WHERE X eid %(x)s, '
b25dda2214a2 [datafeed] remove remaining uses of 'synchronizing' attribute replaced by 'in_synchronization' in 3.13.8. Closes #1989131
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diff changeset
   173
            'X in_synchronization NULL OR X in_synchronization < %(maxdt)s',
b25dda2214a2 [datafeed] remove remaining uses of 'synchronizing' attribute replaced by 'in_synchronization' in 3.13.8. Closes #1989131
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diff changeset
   174
            {'x': self.eid, 'now': now, 'maxdt': now - self.max_lock_lifetime}):
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   175
            self.error('concurrent synchronization detected, skip pull')
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   176
            cnx.commit()
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   177
            return False
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   178
        cnx.commit()
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   179
        return True
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diff changeset
   180
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diff changeset
   181
    def release_synchronization_lock(self, cnx):
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   182
        cnx.execute('SET X in_synchronization NULL WHERE X eid %(x)s',
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diff changeset
   183
                    {'x': self.eid})
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diff changeset
   184
        cnx.commit()
7456
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diff changeset
   185
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diff changeset
   186
    def pull_data(self, cnx, force=False, raise_on_error=False):
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   187
        """Launch synchronization of the source if needed.
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diff changeset
   188
c54038622fc9 [datafeed] use a boolean flag on CWSource to ensure we don't have concurrent synchronizations. Closes #1725690
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diff changeset
   189
        This method is responsible to handle commit/rollback on the given
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   190
        connection.
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diff changeset
   191
        """
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parents:
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   192
        if not force and self.fresh():
6972
12aa5cd81ce5 [datafeed] return empty dict when source is fresh avoid crash in the looping task because None returned
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parents: 6957
diff changeset
   193
            return {}
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diff changeset
   194
        if not self.acquire_synchronization_lock(cnx):
7456
c54038622fc9 [datafeed] use a boolean flag on CWSource to ensure we don't have concurrent synchronizations. Closes #1725690
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diff changeset
   195
            return {}
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diff changeset
   196
        try:
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diff changeset
   197
            return self._pull_data(cnx, force, raise_on_error)
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diff changeset
   198
        finally:
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diff changeset
   199
            cnx.rollback() # rollback first in case there is some dirty
81b56897a377 [datafeed] update datafeed internals to use connection instead of session
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diff changeset
   200
                           # transaction remaining
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diff changeset
   201
            self.release_synchronization_lock(cnx)
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diff changeset
   202
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diff changeset
   203
    def _pull_data(self, cnx, force=False, raise_on_error=False):
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        importlog = self.init_import_log(cnx)
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        myuris = self.source_cwuris(cnx)
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        try:
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            parser = self._get_parser(cnx, sourceuris=myuris, import_log=importlog)
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        except ObjectNotFound:
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            return {}
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        if self.process_urls(parser, self.urls, raise_on_error):
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            self.warning("some error occurred, don't attempt to delete entities")
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   212
        else:
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            parser.handle_deletion(self.config, cnx, myuris)
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        self.update_latest_retrieval(cnx)
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        stats = parser.stats
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        if stats.get('created'):
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            importlog.record_info('added %s entities' % len(stats['created']))
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        if stats.get('updated'):
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            importlog.record_info('updated %s entities' % len(stats['updated']))
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        importlog.write_log(cnx, end_timestamp=self.latest_retrieval)
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   221
        cnx.commit()
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        return stats
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    def process_urls(self, parser, urls, raise_on_error=False):
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        error = False
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        for url in urls:
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            self.info('pulling data from %s', url)
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            try:
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                if parser.process(url, raise_on_error):
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                    error = True
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   231
            except IOError as exc:
7351
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   232
                if raise_on_error:
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                    raise
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                parser.import_log.record_error(
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                    'could not pull data while processing %s: %s'
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                    % (url, exc))
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                error = True
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diff changeset
   238
            except Exception as exc:
7590
a9aad6c25836 closes #1793991: [datafeed] error handling: log unexpected exceptions / don't stop on first validation error
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diff changeset
   239
                if raise_on_error:
a9aad6c25836 closes #1793991: [datafeed] error handling: log unexpected exceptions / don't stop on first validation error
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diff changeset
   240
                    raise
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   241
                self.exception('error while processing %s: %s',
a9aad6c25836 closes #1793991: [datafeed] error handling: log unexpected exceptions / don't stop on first validation error
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   242
                               url, exc)
a9aad6c25836 closes #1793991: [datafeed] error handling: log unexpected exceptions / don't stop on first validation error
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   243
                error = True
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        return error
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diff changeset
   246
    def before_entity_insertion(self, cnx, lid, etype, eid, sourceparams):
6957
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        """called by the repository when an eid has been attributed for an
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        entity stored here but the entity has not been inserted in the system
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        table yet.
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   251
        This method must return the an Entity instance representation of this
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        entity.
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   253
        """
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   254
        entity = super(DataFeedSource, self).before_entity_insertion(
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            cnx, lid, etype, eid, sourceparams)
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48e78934a4e2 [datafeed] properly encode/decode external uri
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diff changeset
   256
        entity.cw_edited['cwuri'] = lid.decode('utf-8')
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        entity.cw_edited.set_defaults()
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        sourceparams['parser'].before_entity_copy(entity, sourceparams)
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        return entity
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   261
    def after_entity_insertion(self, cnx, lid, entity, sourceparams):
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        """called by the repository after an entity stored here has been
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        inserted in the system table.
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   264
        """
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   265
        relations = preprocess_inlined_relations(cnx, entity)
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diff changeset
   266
        if cnx.is_hook_category_activated('integrity'):
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   267
            entity.cw_edited.check(creation=True)
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   268
        self.repo.system_source.add_entity(cnx, entity)
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   269
        entity.cw_edited.saved = entity._cw_is_saved = True
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   270
        sourceparams['parser'].after_entity_copy(entity, sourceparams)
8547
f23ac525ddd1 [datafeed] properly call hooks for inlined relations on entity creation. Closes #2481156
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   271
        # call hooks for inlined relations
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   272
        call_hooks = self.repo.hm.call_hooks
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   273
        if self.should_call_hooks:
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   274
            for attr, value in relations:
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   275
                call_hooks('before_add_relation', cnx,
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f23ac525ddd1 [datafeed] properly call hooks for inlined relations on entity creation. Closes #2481156
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   276
                           eidfrom=entity.eid, rtype=attr, eidto=value)
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   277
                call_hooks('after_add_relation', cnx,
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   278
                           eidfrom=entity.eid, rtype=attr, eidto=value)
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e24bf60428d3 [tests/datafeed] use the new connection api (a small leftover)
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   280
    def source_cwuris(self, cnx):
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   281
        sql = ('SELECT extid, eid, type FROM entities, cw_source_relation '
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               'WHERE entities.eid=cw_source_relation.eid_from '
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               'AND cw_source_relation.eid_to=%s' % self.eid)
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diff changeset
   284
        return dict((self.decode_extid(uri), (eid, type))
9860
e24bf60428d3 [tests/datafeed] use the new connection api (a small leftover)
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diff changeset
   285
                    for uri, eid, type in cnx.system_sql(sql).fetchall())
6957
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diff changeset
   287
    def init_import_log(self, cnx, **kwargs):
21278eb03bbf [datafeed sources] finish the session -> cnx switch
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diff changeset
   288
        dataimport = cnx.create_entity('CWDataImport', cw_import_of=self,
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   289
                                           start_timestamp=datetime.utcnow(),
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diff changeset
   290
                                           **kwargs)
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72210779ff6d [data import log] log on the source so we properly have source name information
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diff changeset
   291
        dataimport.init()
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diff changeset
   292
        return dataimport
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   293
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981f6e487788 [datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
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diff changeset
   294
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class DataFeedParser(AppObject):
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   296
    __registry__ = 'parsers'
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   298
    def __init__(self, cnx, source, sourceuris=None, import_log=None, **kwargs):
21278eb03bbf [datafeed sources] finish the session -> cnx switch
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diff changeset
   299
        super(DataFeedParser, self).__init__(cnx, **kwargs)
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        self.source = source
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   301
        self.sourceuris = sourceuris
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diff changeset
   302
        self.import_log = import_log
8435
5064b6e0d6f4 [datafeed] correctly distinguish checked/updated
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diff changeset
   303
        self.stats = {'created': set(), 'updated': set(), 'checked': set()}
6957
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981f6e487788 [datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
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diff changeset
   305
    def normalize_url(self, url):
9823
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   306
        """Normalize an url by looking if there is a replacement for it in
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   307
        `cubicweb.sobjects.URL_MAPPING`.
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   308
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   309
        This dictionary allow to redirect from one host to another, which may be
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   310
        useful for example in case of test instance using production data, while
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   311
        you don't want to load the external source nor to hack your `/etc/hosts`
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   312
        file.
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   313
        """
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   314
        # local import mandatory, it's available after registration
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   315
        from cubicweb.sobjects import URL_MAPPING
8187
981f6e487788 [datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8069
diff changeset
   316
        for mappedurl in URL_MAPPING:
981f6e487788 [datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8069
diff changeset
   317
            if url.startswith(mappedurl):
981f6e487788 [datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8069
diff changeset
   318
                return url.replace(mappedurl, URL_MAPPING[mappedurl], 1)
981f6e487788 [datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8069
diff changeset
   319
        return url
981f6e487788 [datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8069
diff changeset
   320
10516
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   321
    def retrieve_url(self, url):
9823
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   322
        """Return stream linked by the given url:
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   323
        * HTTP urls will be normalized (see :meth:`normalize_url`)
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   324
        * handle file:// URL
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   325
        * other will be considered as plain content, useful for testing purpose
10516
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   326
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   327
        For http URLs, it will try to find a cwclientlib config entry
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   328
        (if available) and use it as requester.
9823
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   329
        """
10516
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   330
        purl = urlparse.urlparse(url)
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   331
        if purl.scheme == 'file':
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   332
            return URLLibResponseAdapter(open(url[7:]), url)
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   333
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   334
        url = self.normalize_url(url)
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   335
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   336
        # first, try to use cwclientlib if it's available and if the
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   337
        # url matches a configuration entry in ~/.config/cwclientlibrc
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   338
        try:
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   339
            from cwclientlib import cwproxy_for
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   340
            # parse url again since it has been normalized
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   341
            cnx = cwproxy_for(url)
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   342
            cnx.timeout = self.source.http_timeout
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   343
            self.source.info('Using cwclientlib for %s' % url)
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   344
            resp = cnx.get(url)
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   345
            resp.raise_for_status()
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   346
            return URLLibResponseAdapter(StringIO.StringIO(resp.text), url)
10532
2cc74c688eb9 [datafeed] also catch EnvironmentError when trying to load the cwclientlib config file
David Douard <david.douard@logilab.fr>
parents: 10522
diff changeset
   347
        except (ImportError, ValueError, EnvironmentError) as exc:
10516
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   348
            # ImportError: not available
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   349
            # ValueError: no config entry found
10532
2cc74c688eb9 [datafeed] also catch EnvironmentError when trying to load the cwclientlib config file
David Douard <david.douard@logilab.fr>
parents: 10522
diff changeset
   350
            # EnvironmentError: no cwclientlib config file found
10516
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   351
            self.source.debug(str(exc))
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   352
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   353
        # no chance with cwclientlib, fall back to former implementation
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   354
        if purl.scheme in ('http', 'https'):
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   355
            self.source.info('GET %s', url)
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   356
            req = urllib2.Request(url)
9825
946b483bc8a1 [datafeed parser] enhance retrieve_url to support POSTing data and custom HTTP headers
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9824
diff changeset
   357
            return _OPENER.open(req, timeout=self.source.http_timeout)
10516
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   358
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   359
        # url is probably plain content
9824
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   360
        return URLLibResponseAdapter(StringIO.StringIO(url), url)
9823
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   361
6957
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   362
    def add_schema_config(self, schemacfg, checkonly=False):
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   363
        """added CWSourceSchemaConfig, modify mapping accordingly"""
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   364
        msg = schemacfg._cw._("this parser doesn't use a mapping")
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   365
        raise ValidationError(schemacfg.eid, {None: msg})
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   366
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   367
    def del_schema_config(self, schemacfg, checkonly=False):
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   368
        """deleted CWSourceSchemaConfig, modify mapping accordingly"""
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   369
        msg = schemacfg._cw._("this parser doesn't use a mapping")
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   370
        raise ValidationError(schemacfg.eid, {None: msg})
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   371
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   372
    def extid2entity(self, uri, etype, **sourceparams):
10089
6346f53c85f1 [datafeed] Add a raise_on_error parameter to DataFeedSource.extid2entity
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9990
diff changeset
   373
        """Return an entity for the given uri. May return None if it should be
6346f53c85f1 [datafeed] Add a raise_on_error parameter to DataFeedSource.extid2entity
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9990
diff changeset
   374
        skipped.
6346f53c85f1 [datafeed] Add a raise_on_error parameter to DataFeedSource.extid2entity
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9990
diff changeset
   375
6346f53c85f1 [datafeed] Add a raise_on_error parameter to DataFeedSource.extid2entity
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9990
diff changeset
   376
        If a `raise_on_error` keyword parameter is passed, a ValidationError
6346f53c85f1 [datafeed] Add a raise_on_error parameter to DataFeedSource.extid2entity
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9990
diff changeset
   377
        exception may be raised.
7399
972ed1843bd8 [multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7398
diff changeset
   378
        """
10089
6346f53c85f1 [datafeed] Add a raise_on_error parameter to DataFeedSource.extid2entity
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9990
diff changeset
   379
        raise_on_error = sourceparams.pop('raise_on_error', False)
9879
21278eb03bbf [datafeed sources] finish the session -> cnx switch
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9860
diff changeset
   380
        cnx = self._cw
7534
d58a9d96aad8 [datafeed, cw.xml] xml now carry entity's source information, interpreted at the other end so that for instance when an entity from elo is seen when importing cwo, it's properly marked as coming from elo source if one exists
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7533
diff changeset
   381
        # if cwsource is specified and repository has a source with the same
d58a9d96aad8 [datafeed, cw.xml] xml now carry entity's source information, interpreted at the other end so that for instance when an entity from elo is seen when importing cwo, it's properly marked as coming from elo source if one exists
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7533
diff changeset
   382
        # name, call extid2eid on that source so entity will be properly seen as
d58a9d96aad8 [datafeed, cw.xml] xml now carry entity's source information, interpreted at the other end so that for instance when an entity from elo is seen when importing cwo, it's properly marked as coming from elo source if one exists
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7533
diff changeset
   383
        # coming from this source
7699
d07cde311630 [datafeed] properly take care to cwsource=system in imported xml. Closes #1877017
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7698
diff changeset
   384
        source_uri = sourceparams.pop('cwsource', None)
d07cde311630 [datafeed] properly take care to cwsource=system in imported xml. Closes #1877017
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7698
diff changeset
   385
        if source_uri is not None and source_uri != 'system':
9879
21278eb03bbf [datafeed sources] finish the session -> cnx switch
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9860
diff changeset
   386
            source = cnx.repo.sources_by_uri.get(source_uri, self.source)
7699
d07cde311630 [datafeed] properly take care to cwsource=system in imported xml. Closes #1877017
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7698
diff changeset
   387
        else:
d07cde311630 [datafeed] properly take care to cwsource=system in imported xml. Closes #1877017
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7698
diff changeset
   388
            source = self.source
6957
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   389
        sourceparams['parser'] = self
7731
48e78934a4e2 [datafeed] properly encode/decode external uri
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7727
diff changeset
   390
        if isinstance(uri, unicode):
48e78934a4e2 [datafeed] properly encode/decode external uri
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7727
diff changeset
   391
            uri = uri.encode('utf-8')
7590
a9aad6c25836 closes #1793991: [datafeed] error handling: log unexpected exceptions / don't stop on first validation error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7552
diff changeset
   392
        try:
9879
21278eb03bbf [datafeed sources] finish the session -> cnx switch
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9860
diff changeset
   393
            eid = cnx.repo.extid2eid(source, str(uri), etype, cnx,
7698
1c7411535c2d [datafeed / fti] rather control a 'complete' parameter than setting empty attribute values
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7697
diff changeset
   394
                                         sourceparams=sourceparams)
8695
358d8bed9626 [toward-py3k] rewrite to "except AnException as exc:" (part of #2711624)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 8694
diff changeset
   395
        except ValidationError as ex:
10089
6346f53c85f1 [datafeed] Add a raise_on_error parameter to DataFeedSource.extid2entity
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9990
diff changeset
   396
            if raise_on_error:
6346f53c85f1 [datafeed] Add a raise_on_error parameter to DataFeedSource.extid2entity
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9990
diff changeset
   397
                raise
7950
99ae8c883ad3 [ms repository] when an exception is raised during extid2eid and no rollback is done, some manual cleanups have to be done (closes #1993420)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7934
diff changeset
   398
            self.source.critical('error while creating %s: %s', etype, ex)
8069
4341fb713b14 [datafeed log] properly log errors catched at the source level
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8068
diff changeset
   399
            self.import_log.record_error('error while creating %s: %s'
4341fb713b14 [datafeed log] properly log errors catched at the source level
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8068
diff changeset
   400
                                         % (etype, ex))
7590
a9aad6c25836 closes #1793991: [datafeed] error handling: log unexpected exceptions / don't stop on first validation error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7552
diff changeset
   401
            return None
7399
972ed1843bd8 [multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7398
diff changeset
   402
        if eid < 0:
972ed1843bd8 [multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7398
diff changeset
   403
            # entity has been moved away from its original source
972ed1843bd8 [multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7398
diff changeset
   404
            #
972ed1843bd8 [multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7398
diff changeset
   405
            # Don't give etype to entity_from_eid so we get UnknownEid if the
972ed1843bd8 [multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7398
diff changeset
   406
            # entity has been removed
972ed1843bd8 [multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7398
diff changeset
   407
            try:
9879
21278eb03bbf [datafeed sources] finish the session -> cnx switch
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9860
diff changeset
   408
                entity = cnx.entity_from_eid(-eid)
7399
972ed1843bd8 [multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7398
diff changeset
   409
            except UnknownEid:
972ed1843bd8 [multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7398
diff changeset
   410
                return None
972ed1843bd8 [multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7398
diff changeset
   411
            self.notify_updated(entity) # avoid later update from the source's data
972ed1843bd8 [multi-sources] support for moving an entity from an external source (closes #343818)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7398
diff changeset
   412
            return entity
6957
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   413
        if self.sourceuris is not None:
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   414
            self.sourceuris.pop(str(uri), None)
9879
21278eb03bbf [datafeed sources] finish the session -> cnx switch
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9860
diff changeset
   415
        return cnx.entity_from_eid(eid, etype)
6957
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   416
8409
79534887943e [datafeed] fix/finish cleanup started by auc in 8393:c25b96ae4f8a: parser.process prototytpe is (url, raise_on_error=False). Drop partialcommit argument which were never specified
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8408
diff changeset
   417
    def process(self, url, raise_on_error=False):
6957
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   418
        """main callback: process the url"""
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   419
        raise NotImplementedError
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   420
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   421
    def before_entity_copy(self, entity, sourceparams):
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   422
        raise NotImplementedError
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   423
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   424
    def after_entity_copy(self, entity, sourceparams):
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   425
        self.stats['created'].add(entity.eid)
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   426
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   427
    def created_during_pull(self, entity):
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   428
        return entity.eid in self.stats['created']
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   429
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   430
    def updated_during_pull(self, entity):
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   431
        return entity.eid in self.stats['updated']
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   432
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   433
    def notify_updated(self, entity):
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   434
        return self.stats['updated'].add(entity.eid)
7378
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   435
8435
5064b6e0d6f4 [datafeed] correctly distinguish checked/updated
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8434
diff changeset
   436
    def notify_checked(self, entity):
5064b6e0d6f4 [datafeed] correctly distinguish checked/updated
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8434
diff changeset
   437
        return self.stats['checked'].add(entity.eid)
5064b6e0d6f4 [datafeed] correctly distinguish checked/updated
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8434
diff changeset
   438
8187
981f6e487788 [datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8069
diff changeset
   439
    def is_deleted(self, extid, etype, eid):
981f6e487788 [datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8069
diff changeset
   440
        """return True if the entity of given external id, entity type and eid
981f6e487788 [datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8069
diff changeset
   441
        is actually deleted. Always return True by default, put more sensible
981f6e487788 [datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8069
diff changeset
   442
        stuff in sub-classes.
981f6e487788 [datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8069
diff changeset
   443
        """
981f6e487788 [datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8069
diff changeset
   444
        return True
7378
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   445
9879
21278eb03bbf [datafeed sources] finish the session -> cnx switch
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9860
diff changeset
   446
    def handle_deletion(self, config, cnx, myuris):
8430
5bee87a14bb1 fix ldap removal handling in ldapfeed (closes #2376625 and #2385133)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8429
diff changeset
   447
        if config['delete-entities'] and myuris:
5bee87a14bb1 fix ldap removal handling in ldapfeed (closes #2376625 and #2385133)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8429
diff changeset
   448
            byetype = {}
5bee87a14bb1 fix ldap removal handling in ldapfeed (closes #2376625 and #2385133)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8429
diff changeset
   449
            for extid, (eid, etype) in myuris.iteritems():
5bee87a14bb1 fix ldap removal handling in ldapfeed (closes #2376625 and #2385133)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8429
diff changeset
   450
                if self.is_deleted(extid, etype, eid):
5bee87a14bb1 fix ldap removal handling in ldapfeed (closes #2376625 and #2385133)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8429
diff changeset
   451
                    byetype.setdefault(etype, []).append(str(eid))
5bee87a14bb1 fix ldap removal handling in ldapfeed (closes #2376625 and #2385133)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8429
diff changeset
   452
            for etype, eids in byetype.iteritems():
5bee87a14bb1 fix ldap removal handling in ldapfeed (closes #2376625 and #2385133)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8429
diff changeset
   453
                self.warning('delete %s %s entities', len(eids), etype)
9879
21278eb03bbf [datafeed sources] finish the session -> cnx switch
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9860
diff changeset
   454
                cnx.execute('DELETE %s X WHERE X eid IN (%s)'
21278eb03bbf [datafeed sources] finish the session -> cnx switch
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9860
diff changeset
   455
                            % (etype, ','.join(eids)))
9975
98b4f7fa2e3a [datafeed] Commit after all deletions in datafeed parser
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9879
diff changeset
   456
            cnx.commit()
8430
5bee87a14bb1 fix ldap removal handling in ldapfeed (closes #2376625 and #2385133)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8429
diff changeset
   457
8188
1867e252e487 [repository] ldap-feed source. Closes #2086984
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8187
diff changeset
   458
    def update_if_necessary(self, entity, attrs):
1867e252e487 [repository] ldap-feed source. Closes #2086984
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8187
diff changeset
   459
        entity.complete(tuple(attrs))
1867e252e487 [repository] ldap-feed source. Closes #2086984
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8187
diff changeset
   460
        # check modification date and compare attribute values to only update
1867e252e487 [repository] ldap-feed source. Closes #2086984
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8187
diff changeset
   461
        # what's actually needed
8435
5064b6e0d6f4 [datafeed] correctly distinguish checked/updated
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8434
diff changeset
   462
        self.notify_checked(entity)
8188
1867e252e487 [repository] ldap-feed source. Closes #2086984
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8187
diff changeset
   463
        mdate = attrs.get('modification_date')
1867e252e487 [repository] ldap-feed source. Closes #2086984
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8187
diff changeset
   464
        if not mdate or mdate > entity.modification_date:
1867e252e487 [repository] ldap-feed source. Closes #2086984
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8187
diff changeset
   465
            attrs = dict( (k, v) for k, v in attrs.iteritems()
1867e252e487 [repository] ldap-feed source. Closes #2086984
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8187
diff changeset
   466
                          if v != getattr(entity, k))
1867e252e487 [repository] ldap-feed source. Closes #2086984
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8187
diff changeset
   467
            if attrs:
8483
4ba11607d84a [entity api] unify set_attributes / set_relations into a cw_set method. Closes #2423719
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8435
diff changeset
   468
                entity.cw_set(**attrs)
8434
39c5bb4dcc59 [ldapfeed] do not crash on ldap user deletion + pull + already deactivated users, cleanups (closes #2392933)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8430
diff changeset
   469
                self.notify_updated(entity)
7378
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   470
8547
f23ac525ddd1 [datafeed] properly call hooks for inlined relations on entity creation. Closes #2481156
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8529
diff changeset
   471
7378
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   472
class DataFeedXMLParser(DataFeedParser):
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   473
8409
79534887943e [datafeed] fix/finish cleanup started by auc in 8393:c25b96ae4f8a: parser.process prototytpe is (url, raise_on_error=False). Drop partialcommit argument which were never specified
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8408
diff changeset
   474
    def process(self, url, raise_on_error=False):
7378
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   475
        """IDataFeedParser main entry point"""
7447
d5705c9bbe82 don't crash if we can't fetch data or if xml is malformed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7446
diff changeset
   476
        try:
d5705c9bbe82 don't crash if we can't fetch data or if xml is malformed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7446
diff changeset
   477
            parsed = self.parse(url)
8695
358d8bed9626 [toward-py3k] rewrite to "except AnException as exc:" (part of #2711624)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 8694
diff changeset
   478
        except Exception as ex:
7533
43835fbdf97d [datafeed] actually raise on error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7527
diff changeset
   479
            if raise_on_error:
43835fbdf97d [datafeed] actually raise on error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7527
diff changeset
   480
                raise
8069
4341fb713b14 [datafeed log] properly log errors catched at the source level
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8068
diff changeset
   481
            self.import_log.record_error(str(ex))
7447
d5705c9bbe82 don't crash if we can't fetch data or if xml is malformed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7446
diff changeset
   482
            return True
7378
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   483
        error = False
9879
21278eb03bbf [datafeed sources] finish the session -> cnx switch
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9860
diff changeset
   484
        commit = self._cw.commit
21278eb03bbf [datafeed sources] finish the session -> cnx switch
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9860
diff changeset
   485
        rollback = self._cw.rollback
7447
d5705c9bbe82 don't crash if we can't fetch data or if xml is malformed
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7446
diff changeset
   486
        for args in parsed:
7378
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   487
            try:
10089
6346f53c85f1 [datafeed] Add a raise_on_error parameter to DataFeedSource.extid2entity
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9990
diff changeset
   488
                self.process_item(*args, raise_on_error=raise_on_error)
8409
79534887943e [datafeed] fix/finish cleanup started by auc in 8393:c25b96ae4f8a: parser.process prototytpe is (url, raise_on_error=False). Drop partialcommit argument which were never specified
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8408
diff changeset
   489
                # commit+set_cnxset instead of commit(free_cnxset=False) to let
79534887943e [datafeed] fix/finish cleanup started by auc in 8393:c25b96ae4f8a: parser.process prototytpe is (url, raise_on_error=False). Drop partialcommit argument which were never specified
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8408
diff changeset
   490
                # other a chance to get our connections set
79534887943e [datafeed] fix/finish cleanup started by auc in 8393:c25b96ae4f8a: parser.process prototytpe is (url, raise_on_error=False). Drop partialcommit argument which were never specified
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8408
diff changeset
   491
                commit()
8695
358d8bed9626 [toward-py3k] rewrite to "except AnException as exc:" (part of #2711624)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 8694
diff changeset
   492
            except ValidationError as exc:
7385
29f050e39b09 [datafeed] propagate raise_on_error to parser's process method
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7379
diff changeset
   493
                if raise_on_error:
29f050e39b09 [datafeed] propagate raise_on_error to parser's process method
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7379
diff changeset
   494
                    raise
8409
79534887943e [datafeed] fix/finish cleanup started by auc in 8393:c25b96ae4f8a: parser.process prototytpe is (url, raise_on_error=False). Drop partialcommit argument which were never specified
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8408
diff changeset
   495
                self.source.error('Skipping %s because of validation error %s'
79534887943e [datafeed] fix/finish cleanup started by auc in 8393:c25b96ae4f8a: parser.process prototytpe is (url, raise_on_error=False). Drop partialcommit argument which were never specified
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8408
diff changeset
   496
                                  % (args, exc))
79534887943e [datafeed] fix/finish cleanup started by auc in 8393:c25b96ae4f8a: parser.process prototytpe is (url, raise_on_error=False). Drop partialcommit argument which were never specified
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8408
diff changeset
   497
                rollback()
79534887943e [datafeed] fix/finish cleanup started by auc in 8393:c25b96ae4f8a: parser.process prototytpe is (url, raise_on_error=False). Drop partialcommit argument which were never specified
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8408
diff changeset
   498
                error = True
7378
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   499
        return error
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   500
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   501
    def parse(self, url):
9823
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   502
        stream = self.retrieve_url(url)
7378
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   503
        return self.parse_etree(etree.parse(stream).getroot())
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   504
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   505
    def parse_etree(self, document):
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   506
        return [(document,)]
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   507
10089
6346f53c85f1 [datafeed] Add a raise_on_error parameter to DataFeedSource.extid2entity
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9990
diff changeset
   508
    def process_item(self, *args, **kwargs):
7378
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   509
        raise NotImplementedError
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   510
8187
981f6e487788 [datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8069
diff changeset
   511
    def is_deleted(self, extid, etype, eid):
10551
1182f5f16a3d [datafeed] fix typo in DataFeedXMLParser.is_deleted (closes #5729755)
David Douard <david.douard@logilab.fr>
parents: 10532
diff changeset
   512
        if extid.startswith('file://'):
1182f5f16a3d [datafeed] fix typo in DataFeedXMLParser.is_deleted (closes #5729755)
David Douard <david.douard@logilab.fr>
parents: 10532
diff changeset
   513
            return exists(extid[7:])
10516
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   514
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   515
        url = self.normalize_url(extid)
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   516
        # first, try to use cwclientlib if it's available and if the
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   517
        # url matches a configuration entry in ~/.config/cwclientlibrc
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   518
        try:
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   519
            from cwclientlib import cwproxy_for
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   520
            # parse url again since it has been normalized
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   521
            cnx = cwproxy_for(url)
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   522
            cnx.timeout = self.source.http_timeout
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   523
            self.source.info('Using cwclientlib for checking %s' % url)
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   524
            return cnx.get(url).status_code == 404
10532
2cc74c688eb9 [datafeed] also catch EnvironmentError when trying to load the cwclientlib config file
David Douard <david.douard@logilab.fr>
parents: 10522
diff changeset
   525
        except (ImportError, ValueError, EnvironmentError) as exc:
10516
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   526
            # ImportError: not available
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   527
            # ValueError: no config entry found
10532
2cc74c688eb9 [datafeed] also catch EnvironmentError when trying to load the cwclientlib config file
David Douard <david.douard@logilab.fr>
parents: 10522
diff changeset
   528
            # EnvironmentError: no cwclientlib config file found
10516
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   529
            self.source.debug(str(exc))
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   530
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   531
        # no chance with cwclientlib, fall back to former implementation
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   532
        if urlparse.urlparse(url).scheme in ('http', 'https'):
8187
981f6e487788 [datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8069
diff changeset
   533
            try:
10516
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   534
                _OPENER.open(url, timeout=self.source.http_timeout)
8695
358d8bed9626 [toward-py3k] rewrite to "except AnException as exc:" (part of #2711624)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 8694
diff changeset
   535
            except urllib2.HTTPError as ex:
8187
981f6e487788 [datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8069
diff changeset
   536
                if ex.code == 404:
981f6e487788 [datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8069
diff changeset
   537
                    return True
981f6e487788 [datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8069
diff changeset
   538
        return False
981f6e487788 [datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8069
diff changeset
   539
9824
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   540
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   541
class URLLibResponseAdapter(object):
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   542
    """Thin wrapper to be used to fake a value returned by urllib2.urlopen"""
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   543
    def __init__(self, stream, url, code=200):
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   544
        self._stream = stream
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   545
        self._url = url
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   546
        self.code = code
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   547
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   548
    def read(self, *args):
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   549
        return self._stream.read(*args)
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   550
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   551
    def geturl(self):
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   552
        return self._url
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   553
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   554
    def getcode(self):
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   555
        return self.code
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   556
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   557
    def info(self):
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   558
        from mimetools import Message
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   559
        return Message(StringIO.StringIO())
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   560
7378
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   561
# use a cookie enabled opener to use session cookie if any
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   562
_OPENER = urllib2.build_opener()
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   563
try:
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   564
    from logilab.common import urllib2ext
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   565
    _OPENER.add_handler(urllib2ext.HTTPGssapiAuthHandler())
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   566
except ImportError: # python-kerberos not available
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   567
    pass
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   568
_OPENER.add_handler(urllib2.HTTPCookieProcessor(CookieJar()))