repoapi.py
author Julien Cristau <julien.cristau@logilab.fr>
Tue, 07 Jul 2015 14:13:39 +0200
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child 10568 3914388b2d0f
permissions -rw-r--r--
[serverctl] fix schema-diff command It hadn't been ported away from dbapi.
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# copyright 2013-2014 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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"""Official API to access the content of a repository
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"""
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from logilab.common.deprecation import class_deprecated
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from cubicweb.utils import parse_repo_uri
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from cubicweb import ConnectionError, AuthenticationError
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from cubicweb.server.session import Connection
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### private function for specific method ############################
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def _get_inmemory_repo(config, vreg=None):
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    from cubicweb.server.repository import Repository
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    from cubicweb.server.utils import TasksManager
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    return Repository(config, TasksManager(), vreg=vreg)
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### public API ######################################################
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def get_repository(uri=None, config=None, vreg=None):
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    """get a repository for the given URI or config/vregistry (in case we're
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    loading the repository for a client, eg web server, configuration).
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    The returned repository may be an in-memory repository or a proxy object
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    using a specific RPC method, depending on the given URI.
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    """
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    if uri is None:
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        return _get_inmemory_repo(config, vreg)
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    protocol, hostport, appid = parse_repo_uri(uri)
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    if protocol == 'inmemory':
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        # me may have been called with a dummy 'inmemory://' uri ...
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        return _get_inmemory_repo(config, vreg)
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    raise ConnectionError('unknown protocol: `%s`' % protocol)
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def connect(repo, login, **kwargs):
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    """Take credential and return associated Connection.
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    raise AuthenticationError if the credential are invalid."""
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    sessionid = repo.connect(login, **kwargs)
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    session = repo._get_session(sessionid)
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    # XXX the autoclose_session should probably be handle on the session directly
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    # this is something to consider once we have proper server side Connection.
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    return Connection(session)
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def anonymous_cnx(repo):
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    """return a Connection for Anonymous user.
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    raises an AuthenticationError if anonymous usage is not allowed
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    """
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    anoninfo = getattr(repo.config, 'anonymous_user', lambda: None)()
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    if anoninfo is None: # no anonymous user
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        raise AuthenticationError('anonymous access is not authorized')
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    anon_login, anon_password = anoninfo
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    # use vreg's repository cache
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    return connect(repo, anon_login, password=anon_password)
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class ClientConnection(Connection):
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    __metaclass__ = class_deprecated
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    __deprecation_warning__ = '[3.20] %(cls)s is deprecated, use Connection instead'