server/sources/datafeed.py
author Rémi Cardona <remi.cardona@logilab.fr>
Thu, 19 Nov 2015 17:16:19 +0100
changeset 10845 75c60e58ce6b
parent 10805 de4403644b1c
child 10914 fed8bd56f223
permissions -rw-r--r--
[py3k] Fix unicode added in commit 2350424585f8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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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from io import BytesIO
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from os.path import exists
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from datetime import datetime, timedelta
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from six import text_type
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from six.moves.urllib.parse import urlparse
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from six.moves.urllib.request import Request, build_opener, HTTPCookieProcessor
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from six.moves.urllib.error import HTTPError
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from six.moves.http_cookiejar import CookieJar
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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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   104
            raise ValidationError(source_entity.eid, {'config': msg})
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   105
        return typed_config
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   106
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   107
    def _entity_update(self, source_entity):
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        super(DataFeedSource, self)._entity_update(source_entity)
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        self.parser_id = source_entity.parser
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   110
        self.latest_retrieval = source_entity.latest_retrieval
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parents: 8187
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   111
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   112
    def update_config(self, source_entity, typed_config):
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        """update configuration from source entity. `typed_config` is config
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   114
        properly typed with defaults set
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   115
        """
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   116
        super(DataFeedSource, self).update_config(source_entity, typed_config)
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   117
        self.synchro_interval = timedelta(seconds=typed_config['synchronization-interval'])
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   118
        self.max_lock_lifetime = timedelta(seconds=typed_config['max-lock-lifetime'])
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   119
        self.http_timeout = typed_config['http-timeout']
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   120
        # if typed_config['use-cwuri-as-url'] is set, we have to update
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   121
        # use_cwuri_as_url attribute and public configuration dictionary
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   122
        # accordingly
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   123
        if typed_config['use-cwuri-as-url'] is not None:
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   124
            self.use_cwuri_as_url = typed_config['use-cwuri-as-url']
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   125
            self.public_config['use-cwuri-as-url'] = self.use_cwuri_as_url
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   126
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   127
    def init(self, activated, source_entity):
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   128
        super(DataFeedSource, self).init(activated, source_entity)
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   129
        self.parser_id = source_entity.parser
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   130
        self.load_mapping(source_entity._cw)
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   131
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   132
    def _get_parser(self, cnx, **kwargs):
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   133
        if self.parser_id is None:
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   134
            self.warning('No parser defined on source %r', self)
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   135
            raise ObjectNotFound()
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   136
        return self.repo.vreg['parsers'].select(
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   137
            self.parser_id, cnx, source=self, **kwargs)
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   138
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   139
    def load_mapping(self, cnx):
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   140
        self.mapping = {}
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   141
        self.mapping_idx = {}
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   142
        try:
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   143
            parser = self._get_parser(cnx)
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   144
        except (RegistryNotFound, ObjectNotFound):
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   145
            return # no parser yet, don't go further
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diff changeset
   146
        self._load_mapping(cnx, parser=parser)
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   147
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   148
    def add_schema_config(self, schemacfg, checkonly=False, parser=None):
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   149
        """added CWSourceSchemaConfig, modify mapping accordingly"""
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   150
        if parser is None:
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   151
            parser = self._get_parser(schemacfg._cw)
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   152
        parser.add_schema_config(schemacfg, checkonly)
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   153
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   154
    def del_schema_config(self, schemacfg, checkonly=False, parser=None):
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   155
        """deleted CWSourceSchemaConfig, modify mapping accordingly"""
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   156
        if parser is None:
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   157
            parser = self._get_parser(schemacfg._cw)
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   158
        parser.del_schema_config(schemacfg, checkonly)
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   159
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   160
    def fresh(self):
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   161
        if self.latest_retrieval is None:
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   162
            return False
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diff changeset
   163
        return datetime.utcnow() < (self.latest_retrieval + self.synchro_interval)
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   164
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   165
    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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diff changeset
   166
        self.latest_retrieval = datetime.utcnow()
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   167
        cnx.execute('SET X latest_retrieval %(date)s WHERE X eid %(x)s',
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   168
                    {'x': self.eid, 'date': self.latest_retrieval})
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   169
        cnx.commit()
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diff changeset
   170
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   171
    def acquire_synchronization_lock(self, cnx):
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   172
        # XXX race condition until WHERE of SET queries is executed using
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   173
        # 'SELECT FOR UPDATE'
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a93e2ed5877a [datafeed] add max-lifetime for concurrent synchronization lock (closes #1908676)
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parents: 7731
diff changeset
   174
        now = datetime.utcnow()
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   175
        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
   176
            '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
   177
            '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
   178
            {'x': self.eid, 'now': now, 'maxdt': now - self.max_lock_lifetime}):
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   179
            self.error('concurrent synchronization detected, skip pull')
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   180
            cnx.commit()
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   181
            return False
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   182
        cnx.commit()
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   183
        return True
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diff changeset
   184
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diff changeset
   185
    def release_synchronization_lock(self, cnx):
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diff changeset
   186
        cnx.execute('SET X in_synchronization NULL WHERE X eid %(x)s',
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diff changeset
   187
                    {'x': self.eid})
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diff changeset
   188
        cnx.commit()
7456
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diff changeset
   189
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diff changeset
   190
    def pull_data(self, cnx, force=False, raise_on_error=False):
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diff changeset
   191
        """Launch synchronization of the source if needed.
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diff changeset
   192
c54038622fc9 [datafeed] use a boolean flag on CWSource to ensure we don't have concurrent synchronizations. Closes #1725690
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diff changeset
   193
        This method is responsible to handle commit/rollback on the given
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diff changeset
   194
        connection.
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diff changeset
   195
        """
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parents:
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   196
        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
   197
            return {}
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diff changeset
   198
        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
   199
            return {}
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diff changeset
   200
        try:
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diff changeset
   201
            return self._pull_data(cnx, force, raise_on_error)
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diff changeset
   202
        finally:
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diff changeset
   203
            cnx.rollback() # rollback first in case there is some dirty
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diff changeset
   204
                           # transaction remaining
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            self.release_synchronization_lock(cnx)
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   206
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    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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   212
        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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        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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   222
        if stats.get('updated'):
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   223
            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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        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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   233
                if parser.process(url, raise_on_error):
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c53aa19640b2 [sobjects/parsers] on validationerror, skip entity and continue processing feed
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                    error = True
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358d8bed9626 [toward-py3k] rewrite to "except AnException as exc:" (part of #2711624)
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   235
            except IOError as exc:
7351
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   236
                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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   240
                    % (url, exc))
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                error = True
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   242
            except Exception as exc:
7590
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diff changeset
   243
                if raise_on_error:
a9aad6c25836 closes #1793991: [datafeed] error handling: log unexpected exceptions / don't stop on first validation error
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   244
                    raise
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   245
                self.exception('error while processing %s: %s',
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   246
                               url, exc)
a9aad6c25836 closes #1793991: [datafeed] error handling: log unexpected exceptions / don't stop on first validation error
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                error = True
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        return error
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    def before_entity_insertion(self, cnx, lid, etype, eid, sourceparams):
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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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   254
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   255
        This method must return the an Entity instance representation of this
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        entity.
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   257
        """
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   258
        entity = super(DataFeedSource, self).before_entity_insertion(
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   259
            cnx, lid, etype, eid, sourceparams)
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   260
        entity.cw_edited['cwuri'] = lid.decode('utf-8')
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   261
        entity.cw_edited.set_defaults()
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   262
        sourceparams['parser'].before_entity_copy(entity, sourceparams)
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   263
        return entity
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   264
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   265
    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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   268
        """
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diff changeset
   269
        relations = preprocess_inlined_relations(cnx, entity)
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   270
        if cnx.is_hook_category_activated('integrity'):
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   271
            entity.cw_edited.check(creation=True)
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   272
        self.repo.system_source.add_entity(cnx, entity)
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   273
        entity.cw_edited.saved = entity._cw_is_saved = True
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   274
        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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   275
        # call hooks for inlined relations
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   276
        call_hooks = self.repo.hm.call_hooks
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   277
        if self.should_call_hooks:
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   278
            for attr, value in relations:
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   279
                call_hooks('before_add_relation', cnx,
8547
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   280
                           eidfrom=entity.eid, rtype=attr, eidto=value)
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   281
                call_hooks('after_add_relation', cnx,
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   282
                           eidfrom=entity.eid, rtype=attr, eidto=value)
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   283
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e24bf60428d3 [tests/datafeed] use the new connection api (a small leftover)
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diff changeset
   284
    def source_cwuris(self, cnx):
6957
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   285
        sql = ('SELECT extid, eid, type FROM entities, cw_source_relation '
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   286
               'WHERE entities.eid=cw_source_relation.eid_from '
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   287
               'AND cw_source_relation.eid_to=%s' % self.eid)
10581
7846d26ff91d [server/sources] use decode_extid in datafeed
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diff changeset
   288
        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
   289
                    for uri, eid, type in cnx.system_sql(sql).fetchall())
6957
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diff changeset
   291
    def init_import_log(self, cnx, **kwargs):
21278eb03bbf [datafeed sources] finish the session -> cnx switch
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diff changeset
   292
        dataimport = cnx.create_entity('CWDataImport', cw_import_of=self,
7995
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   293
                                           start_timestamp=datetime.utcnow(),
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diff changeset
   294
                                           **kwargs)
8068
72210779ff6d [data import log] log on the source so we properly have source name information
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diff changeset
   295
        dataimport.init()
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diff changeset
   296
        return dataimport
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   297
8187
981f6e487788 [datafeed] set delete-entities=yes is now safer, by checking each entity actually seems deleted. Closes #2165381
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parents: 8069
diff changeset
   298
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class DataFeedParser(AppObject):
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    __registry__ = 'parsers'
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   302
    def __init__(self, cnx, source, sourceuris=None, import_log=None, **kwargs):
21278eb03bbf [datafeed sources] finish the session -> cnx switch
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   303
        super(DataFeedParser, self).__init__(cnx, **kwargs)
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        self.source = source
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   305
        self.sourceuris = sourceuris
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diff changeset
   306
        self.import_log = import_log
8435
5064b6e0d6f4 [datafeed] correctly distinguish checked/updated
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8434
diff changeset
   307
        self.stats = {'created': set(), 'updated': set(), 'checked': set()}
6957
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   308
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
   309
    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
   310
        """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
   311
        `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
   312
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   313
        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
   314
        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
   315
        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
   316
        file.
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   317
        """
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   318
        # 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
   319
        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
   320
        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
   321
            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
   322
                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
   323
        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
   324
10516
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   325
    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
   326
        """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
   327
        * 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
   328
        * handle file:// URL
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   329
        * 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
   330
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   331
        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
   332
        (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
   333
        """
10603
65ad6980976e [py3k] import URL mangling functions using six.moves
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10581
diff changeset
   334
        purl = urlparse(url)
10516
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   335
        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
   336
            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
   337
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   338
        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
   339
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   340
        # 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
   341
        # 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
   342
        try:
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   343
            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
   344
            # 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
   345
            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
   346
            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
   347
            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
   348
            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
   349
            resp.raise_for_status()
10757
f73a9a884534 [py3k] io.BytesIO
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10662
diff changeset
   350
            return URLLibResponseAdapter(BytesIO(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
   351
        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
   352
            # 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
   353
            # 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
   354
            # 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
   355
            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
   356
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   357
        # 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
   358
        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
   359
            self.source.info('GET %s', url)
10610
d53b9c157f99 [py3k] import urllib2 from six.moves
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10603
diff changeset
   360
            req = 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
   361
            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
   362
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   363
        # url is probably plain content
10757
f73a9a884534 [py3k] io.BytesIO
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10662
diff changeset
   364
        return URLLibResponseAdapter(BytesIO(url.encode('ascii')), url)
9823
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   365
6957
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   366
    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
   367
        """added CWSourceSchemaConfig, modify mapping accordingly"""
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   368
        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
   369
        raise ValidationError(schemacfg.eid, {None: msg})
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   370
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   371
    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
   372
        """deleted CWSourceSchemaConfig, modify mapping accordingly"""
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   373
        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
   374
        raise ValidationError(schemacfg.eid, {None: msg})
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   375
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   376
    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
   377
        """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
   378
        skipped.
6346f53c85f1 [datafeed] Add a raise_on_error parameter to DataFeedSource.extid2entity
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9990
diff changeset
   379
6346f53c85f1 [datafeed] Add a raise_on_error parameter to DataFeedSource.extid2entity
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9990
diff changeset
   380
        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
   381
        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
   382
        """
10089
6346f53c85f1 [datafeed] Add a raise_on_error parameter to DataFeedSource.extid2entity
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9990
diff changeset
   383
        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
   384
        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
   385
        # 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
   386
        # 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
   387
        # 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
   388
        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
   389
        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
   390
            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
   391
        else:
d07cde311630 [datafeed] properly take care to cwsource=system in imported xml. Closes #1877017
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7698
diff changeset
   392
            source = self.source
6957
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   393
        sourceparams['parser'] = self
10758
a34edc1057c0 [datafeed] use explicit encode/decode instead of casting to str
Julien Cristau <julien.cristau@logilab.fr>
parents: 10757
diff changeset
   394
        if isinstance(uri, text_type):
7731
48e78934a4e2 [datafeed] properly encode/decode external uri
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7727
diff changeset
   395
            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
   396
        try:
10758
a34edc1057c0 [datafeed] use explicit encode/decode instead of casting to str
Julien Cristau <julien.cristau@logilab.fr>
parents: 10757
diff changeset
   397
            eid = cnx.repo.extid2eid(source, uri, etype, cnx,
a34edc1057c0 [datafeed] use explicit encode/decode instead of casting to str
Julien Cristau <julien.cristau@logilab.fr>
parents: 10757
diff changeset
   398
                                     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
   399
        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
   400
            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
   401
                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
   402
            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
   403
            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
   404
                                         % (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
   405
            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
   406
        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
   407
            # 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
   408
            #
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
            # 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
   410
            # 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
   411
            try:
9879
21278eb03bbf [datafeed sources] finish the session -> cnx switch
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9860
diff changeset
   412
                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
   413
            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
   414
                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
   415
            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
   416
            return entity
6957
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   417
        if self.sourceuris is not None:
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   418
            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
   419
        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
   420
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
   421
    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
   422
        """main callback: process the url"""
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   423
        raise NotImplementedError
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   424
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   425
    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
   426
        raise NotImplementedError
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   427
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   428
    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
   429
        self.stats['created'].add(entity.eid)
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   430
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   431
    def created_during_pull(self, entity):
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   432
        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
   433
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   434
    def updated_during_pull(self, entity):
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   435
        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
   436
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   437
    def notify_updated(self, entity):
ffda12be2e9f [repository] #1460066: backport datafeed cube as cubicweb source
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   438
        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
   439
8435
5064b6e0d6f4 [datafeed] correctly distinguish checked/updated
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8434
diff changeset
   440
    def notify_checked(self, entity):
5064b6e0d6f4 [datafeed] correctly distinguish checked/updated
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8434
diff changeset
   441
        return self.stats['checked'].add(entity.eid)
5064b6e0d6f4 [datafeed] correctly distinguish checked/updated
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8434
diff changeset
   442
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
   443
    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
   444
        """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
   445
        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
   446
        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
   447
        """
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
   448
        return True
7378
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   449
9879
21278eb03bbf [datafeed sources] finish the session -> cnx switch
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9860
diff changeset
   450
    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
   451
        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
   452
            byetype = {}
10662
10942ed172de [py3k] dict.iteritems → dict.items
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10611
diff changeset
   453
            for extid, (eid, etype) in myuris.items():
8430
5bee87a14bb1 fix ldap removal handling in ldapfeed (closes #2376625 and #2385133)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8429
diff changeset
   454
                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
   455
                    byetype.setdefault(etype, []).append(str(eid))
10662
10942ed172de [py3k] dict.iteritems → dict.items
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10611
diff changeset
   456
            for etype, eids in byetype.items():
8430
5bee87a14bb1 fix ldap removal handling in ldapfeed (closes #2376625 and #2385133)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8429
diff changeset
   457
                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
   458
                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
   459
                            % (etype, ','.join(eids)))
9975
98b4f7fa2e3a [datafeed] Commit after all deletions in datafeed parser
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9879
diff changeset
   460
            cnx.commit()
8430
5bee87a14bb1 fix ldap removal handling in ldapfeed (closes #2376625 and #2385133)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8429
diff changeset
   461
8188
1867e252e487 [repository] ldap-feed source. Closes #2086984
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8187
diff changeset
   462
    def update_if_necessary(self, entity, attrs):
1867e252e487 [repository] ldap-feed source. Closes #2086984
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8187
diff changeset
   463
        entity.complete(tuple(attrs))
1867e252e487 [repository] ldap-feed source. Closes #2086984
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8187
diff changeset
   464
        # 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
   465
        # what's actually needed
8435
5064b6e0d6f4 [datafeed] correctly distinguish checked/updated
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 8434
diff changeset
   466
        self.notify_checked(entity)
8188
1867e252e487 [repository] ldap-feed source. Closes #2086984
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8187
diff changeset
   467
        mdate = attrs.get('modification_date')
1867e252e487 [repository] ldap-feed source. Closes #2086984
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8187
diff changeset
   468
        if not mdate or mdate > entity.modification_date:
10662
10942ed172de [py3k] dict.iteritems → dict.items
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10611
diff changeset
   469
            attrs = dict( (k, v) for k, v in attrs.items()
8188
1867e252e487 [repository] ldap-feed source. Closes #2086984
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8187
diff changeset
   470
                          if v != getattr(entity, k))
1867e252e487 [repository] ldap-feed source. Closes #2086984
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8187
diff changeset
   471
            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
   472
                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
   473
                self.notify_updated(entity)
7378
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   474
8547
f23ac525ddd1 [datafeed] properly call hooks for inlined relations on entity creation. Closes #2481156
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8529
diff changeset
   475
7378
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   476
class DataFeedXMLParser(DataFeedParser):
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   477
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
   478
    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
   479
        """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
   480
        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
   481
            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
   482
        except Exception as ex:
7533
43835fbdf97d [datafeed] actually raise on error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7527
diff changeset
   483
            if raise_on_error:
43835fbdf97d [datafeed] actually raise on error
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7527
diff changeset
   484
                raise
8069
4341fb713b14 [datafeed log] properly log errors catched at the source level
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8068
diff changeset
   485
            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
   486
            return True
7378
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   487
        error = False
9879
21278eb03bbf [datafeed sources] finish the session -> cnx switch
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9860
diff changeset
   488
        commit = self._cw.commit
21278eb03bbf [datafeed sources] finish the session -> cnx switch
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9860
diff changeset
   489
        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
   490
        for args in parsed:
7378
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   491
            try:
10089
6346f53c85f1 [datafeed] Add a raise_on_error parameter to DataFeedSource.extid2entity
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9990
diff changeset
   492
                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
   493
                # 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
   494
                # 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
   495
                commit()
8695
358d8bed9626 [toward-py3k] rewrite to "except AnException as exc:" (part of #2711624)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 8694
diff changeset
   496
            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
   497
                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
   498
                    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
   499
                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
   500
                                  % (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
   501
                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
   502
                error = True
7378
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   503
        return error
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(self, url):
9823
258d2f9f7d39 [datafeed parser] factor out retrieve_url method from DataFeedXMLParser.parse
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9822
diff changeset
   506
        stream = self.retrieve_url(url)
7378
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   507
        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
   508
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   509
    def parse_etree(self, document):
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   510
        return [(document,)]
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   511
10089
6346f53c85f1 [datafeed] Add a raise_on_error parameter to DataFeedSource.extid2entity
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 9990
diff changeset
   512
    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
   513
        raise NotImplementedError
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   514
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
   515
    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
   516
        if extid.startswith('file://'):
1182f5f16a3d [datafeed] fix typo in DataFeedXMLParser.is_deleted (closes #5729755)
David Douard <david.douard@logilab.fr>
parents: 10532
diff changeset
   517
            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
   518
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   519
        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
   520
        # 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
   521
        # 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
   522
        try:
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   523
            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
   524
            # 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
   525
            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
   526
            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
   527
            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
   528
            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
   529
        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
   530
            # 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
   531
            # 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
   532
            # 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
   533
            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
   534
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   535
        # no chance with cwclientlib, fall back to former implementation
10603
65ad6980976e [py3k] import URL mangling functions using six.moves
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10581
diff changeset
   536
        if 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
   537
            try:
10516
4c59409220b6 [datafeed] allow to use cwclientlib for datafeed's queries (closes #5456849)
David Douard <david.douard@logilab.fr>
parents: 10143
diff changeset
   538
                _OPENER.open(url, timeout=self.source.http_timeout)
10610
d53b9c157f99 [py3k] import urllib2 from six.moves
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10603
diff changeset
   539
            except 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
   540
                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
   541
                    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
   542
        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
   543
9824
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   544
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   545
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
   546
    """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
   547
    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
   548
        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
   549
        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
   550
        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
   551
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   552
    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
   553
        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
   554
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   555
    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
   556
        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
   557
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   558
    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
   559
        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
   560
30183ecf5c61 [datafeed parser] fix retrieve_url to always return urllib2.urlopen compatible output
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9823
diff changeset
   561
7378
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   562
# use a cookie enabled opener to use session cookie if any
10610
d53b9c157f99 [py3k] import urllib2 from six.moves
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10603
diff changeset
   563
_OPENER = build_opener()
7378
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   564
try:
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   565
    from logilab.common import urllib2ext
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   566
    _OPENER.add_handler(urllib2ext.HTTPGssapiAuthHandler())
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   567
except ImportError: # python-kerberos not available
86a1ae289f05 [datafeed] extract a generic DataFeedXMLParser from CWEntityXMLParser
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7351
diff changeset
   568
    pass
10610
d53b9c157f99 [py3k] import urllib2 from six.moves
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10603
diff changeset
   569
_OPENER.add_handler(HTTPCookieProcessor(CookieJar()))