req.py
author Alexandre Fayolle <alexandre.fayolle@logilab.fr>
Sat, 29 May 2010 09:52:31 +0000
branchstable
changeset 5600 a826996875e7
parent 5516 232d13fc3e86
child 5527 01a7228ab5a0
child 5709 5606c01d68b2
permissions -rw-r--r--
[win32 service] activate logging to the configured file as soon as possible since we don't always have access to the system events of the computer running CW it is important to get as much information as possible in the log file, especially startup failure messages.
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# copyright 2003-2010 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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"""Base class for request/session
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"""
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__docformat__ = "restructuredtext en"
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from warnings import warn
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from urlparse import urlsplit, urlunsplit
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from urllib import quote as urlquote, unquote as urlunquote
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from datetime import time, datetime, timedelta
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from cgi import parse_qs, parse_qsl
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from logilab.common.decorators import cached
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from logilab.common.deprecation import deprecated
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from logilab.common.date import ustrftime, strptime, todate, todatetime
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from cubicweb import Unauthorized, RegistryException, typed_eid
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from cubicweb.rset import ResultSet
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ONESECOND = timedelta(0, 1, 0)
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CACHE_REGISTRY = {}
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def _check_cw_unsafe(kwargs):
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    if kwargs.pop('_cw_unsafe', False):
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        warn('[3.7] _cw_unsafe argument is deprecated, now unsafe by '
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             'default, control it using cw_[read|write]_security.',
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             DeprecationWarning, stacklevel=3)
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class Cache(dict):
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    def __init__(self):
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        super(Cache, self).__init__()
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        _now = datetime.now()
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        self.cache_creation_date = _now
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        self.latest_cache_lookup = _now
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class RequestSessionBase(object):
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    """base class containing stuff shared by server session and web request
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    request/session is the main resources accessor, mainly through it's vreg
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    attribute:
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    :attribute vreg: the instance's registry
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    :attribute vreg.schema: the instance's schema
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    :attribute vreg.config: the instance's configuration
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    """
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    def __init__(self, vreg):
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        self.vreg = vreg
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        try:
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            encoding = vreg.property_value('ui.encoding')
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        except: # no vreg or property not registered
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            encoding = 'utf-8'
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        self.encoding = encoding
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        # cache result of execution for (rql expr / eids),
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        # should be emptied on commit/rollback of the server session / web
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        # connection
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        self.local_perm_cache = {}
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        self._ = unicode
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    def property_value(self, key):
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        """return value of the property with the given key, giving priority to
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        user specific value if any, else using site value
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        """
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        if self.user:
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            return self.user.property_value(key)
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        return self.vreg.property_value(key)
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    def etype_rset(self, etype, size=1):
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        """return a fake result set for a particular entity type"""
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        rset = ResultSet([('A',)]*size, '%s X' % etype,
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                         description=[(etype,)]*size)
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        def get_entity(row, col=0, etype=etype, req=self, rset=rset):
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            return req.vreg.etype_class(etype)(req, rset, row, col)
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        rset.get_entity = get_entity
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        rset.req = self
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        return rset
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    def eid_rset(self, eid, etype=None):
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        """return a result set for the given eid without doing actual query
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        (we have the eid, we can suppose it exists and user has access to the
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        entity)
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        """
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        eid = typed_eid(eid)
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   101
        if etype is None:
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            etype = self.describe(eid)[0]
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        rset = ResultSet([(eid,)], 'Any X WHERE X eid %(x)s', {'x': eid},
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                         [(etype,)])
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        rset.req = self
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   106
        return rset
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   107
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   108
    def empty_rset(self):
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        """ return a guaranteed empty result """
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   110
        rset = ResultSet([], 'Any X WHERE X eid -1')
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   111
        rset.req = self
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        return rset
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   113
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   114
    def entity_from_eid(self, eid, etype=None):
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   115
        """return an entity instance for the given eid. No query is done"""
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        try:
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            return self.entity_cache(eid)
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   118
        except KeyError:
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            rset = self.eid_rset(eid, etype)
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            entity = rset.get_entity(0, 0)
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            self.set_entity_cache(entity)
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   122
            return entity
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   123
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   124
    def entity_cache(self, eid):
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   125
        raise KeyError
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   126
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   127
    def set_entity_cache(self, entity):
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        pass
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   129
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    def create_entity(self, etype, **kwargs):
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        """add a new entity of the given type
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   132
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   133
        Example (in a shell session):
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        >>> c = create_entity('Company', name=u'Logilab')
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        >>> create_entity('Person', firstname=u'John', lastname=u'Doe',
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        ...               works_for=c)
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   138
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   139
        """
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   140
        _check_cw_unsafe(kwargs)
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   141
        cls = self.vreg['etypes'].etype_class(etype)
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   142
        return cls.cw_instantiate(self.execute, **kwargs)
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   143
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   144
    def ensure_ro_rql(self, rql):
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        """raise an exception if the given rql is not a select query"""
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   146
        first = rql.split(' ', 1)[0].lower()
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        if first in ('insert', 'set', 'delete'):
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   148
            raise Unauthorized(self._('only select queries are authorized'))
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   149
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   150
    def get_cache(self, cachename):
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        """cachename should be dotted names as in :
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   152
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   153
        - cubicweb.mycache
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        - cubes.blog.mycache
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   155
        - etc.
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   156
        """
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   157
        if cachename in CACHE_REGISTRY:
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   158
            cache = CACHE_REGISTRY[cachename]
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   159
        else:
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   160
            cache = CACHE_REGISTRY[cachename] = Cache()
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   161
        _now = datetime.now()
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   162
        if _now > cache.latest_cache_lookup + ONESECOND:
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   163
            ecache = self.execute(
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   164
                'Any C,T WHERE C is CWCache, C name %(name)s, C timestamp T',
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   165
                {'name':cachename}).get_entity(0,0)
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   166
            cache.latest_cache_lookup = _now
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   167
            if not ecache.valid(cache.cache_creation_date):
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   168
                cache.clear()
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   169
                cache.cache_creation_date = _now
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   170
        return cache
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   171
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    # url generation methods ##################################################
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   173
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   174
    def build_url(self, *args, **kwargs):
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        """return an absolute URL using params dictionary key/values as URL
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        parameters. Values are automatically URL quoted, and the
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        publishing method to use may be specified or will be guessed.
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        """
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   179
        # use *args since we don't want first argument to be "anonymous" to
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        # avoid potential clash with kwargs
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        if args:
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            assert len(args) == 1, 'only 0 or 1 non-named-argument expected'
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            method = args[0]
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   184
        else:
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            method = None
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        # XXX I (adim) think that if method is passed explicitly, we should
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        #     not try to process it and directly call req.build_url()
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   188
        if method is None:
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   189
            if self.from_controller() == 'view' and not '_restpath' in kwargs:
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                method = self.relative_path(includeparams=False) or 'view'
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   191
            else:
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                method = 'view'
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   193
        base_url = kwargs.pop('base_url', None)
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   194
        if base_url is None:
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            base_url = self.base_url()
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        if '_restpath' in kwargs:
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            assert method == 'view', method
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            path = kwargs.pop('_restpath')
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        else:
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            path = method
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        if not kwargs:
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            return u'%s%s' % (base_url, path)
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        return u'%s%s?%s' % (base_url, path, self.build_url_params(**kwargs))
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    def build_url_params(self, **kwargs):
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        """return encoded params to incorporate them in an URL"""
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        args = []
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        for param, values in kwargs.iteritems():
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            if not isinstance(values, (list, tuple)):
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                values = (values,)
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            for value in values:
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   213
                args.append(u'%s=%s' % (param, self.url_quote(value)))
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        return '&'.join(args)
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   216
    def url_quote(self, value, safe=''):
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        """urllib.quote is not unicode safe, use this method to do the
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   218
        necessary encoding / decoding. Also it's designed to quote each
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   219
        part of a url path and so the '/' character will be encoded as well.
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   220
        """
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   221
        if isinstance(value, unicode):
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   222
            quoted = urlquote(value.encode(self.encoding), safe=safe)
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   223
            return unicode(quoted, self.encoding)
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   224
        return urlquote(str(value), safe=safe)
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   225
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
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   226
    def url_unquote(self, quoted):
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   227
        """returns a unicode unquoted string
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   228
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   229
        decoding is based on `self.encoding` which is the encoding
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   230
        used in `url_quote`
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diff changeset
   231
        """
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diff changeset
   232
        if isinstance(quoted, unicode):
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   233
            quoted = quoted.encode(self.encoding)
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   234
        try:
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   235
            return unicode(urlunquote(quoted), self.encoding)
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   236
        except UnicodeDecodeError: # might occurs on manually typed URLs
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   237
            return unicode(urlunquote(quoted), 'iso-8859-1')
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diff changeset
   238
4300
03430023ce82 new url_parse_qs method on base request to parse unicode url formatted query strings
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diff changeset
   239
    def url_parse_qsl(self, querystring):
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diff changeset
   240
        """return a list of (key, val) found in the url quoted query string"""
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parents: 4222
diff changeset
   241
        if isinstance(querystring, unicode):
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diff changeset
   242
            querystring = querystring.encode(self.encoding)
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diff changeset
   243
        for key, val in parse_qsl(querystring):
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diff changeset
   244
            try:
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   245
                yield unicode(key, self.encoding), unicode(val, self.encoding)
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diff changeset
   246
            except UnicodeDecodeError: # might occurs on manually typed URLs
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   247
                yield unicode(key, 'iso-8859-1'), unicode(val, 'iso-8859-1')
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   248
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   249
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   250
    def rebuild_url(self, url, **newparams):
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   251
        """return the given url with newparams inserted. If any new params
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   252
        is already specified in the url, it's overriden by the new value
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   253
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   254
        newparams may only be mono-valued.
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   255
        """
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diff changeset
   256
        if isinstance(url, unicode):
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   257
            url = url.encode(self.encoding)
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   258
        schema, netloc, path, query, fragment = urlsplit(url)
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   259
        query = parse_qs(query)
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   260
        # sort for testing predictability
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diff changeset
   261
        for key, val in sorted(newparams.iteritems()):
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parents: 4466
diff changeset
   262
            query[key] = (self.url_quote(val),)
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parents: 4466
diff changeset
   263
        query = '&'.join(u'%s=%s' % (param, value)
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   264
                         for param, values in query.items()
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diff changeset
   265
                         for value in values)
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diff changeset
   266
        return urlunsplit((schema, netloc, path, query, fragment))
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parents: 4466
diff changeset
   267
2792
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   268
    # bound user related methods ###############################################
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
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   269
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   270
    @cached
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   271
    def user_data(self):
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   272
        """returns a dictionnary with this user's information"""
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   273
        userinfo = {}
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   274
        if self.is_internal_session:
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
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   275
            userinfo['login'] = "cubicweb"
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   276
            userinfo['name'] = "cubicweb"
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   277
            userinfo['email'] = ""
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   278
            return userinfo
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13b0b96d7982 [repo] enhanced security handling: deprecates unsafe_execute, in favor of explicit read/write security control using the `enabled_security` context manager. Also code executed on the repository side is now unsafe by default.
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   279
        user = self.user
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   280
        userinfo['login'] = user.login
3163
edfe43ceaa35 backport 3.5
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diff changeset
   281
        userinfo['name'] = user.name()
edfe43ceaa35 backport 3.5
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diff changeset
   282
        userinfo['email'] = user.get_email()
2792
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   283
        return userinfo
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   284
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
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   285
    def is_internal_session(self):
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   286
        """overrided on the server-side"""
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   287
        return False
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   288
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
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diff changeset
   289
    # formating methods #######################################################
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
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parents:
diff changeset
   290
2823
a4e3e9b1a9cd backported from appobject
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parents: 2808
diff changeset
   291
    def view(self, __vid, rset=None, __fallback_oid=None, __registry='views',
5516
232d13fc3e86 [req] avoid getting w in cw_extra_kwargs when calling .view
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parents: 5459
diff changeset
   292
             initargs=None, w=None, **kwargs):
4070
6e9f7abee4ef fix initargs handling
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 3720
diff changeset
   293
        """Select object with the given id (`__oid`) then render it.  If the
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parents: 3720
diff changeset
   294
        object isn't selectable, try to select fallback object if
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parents: 3720
diff changeset
   295
        `__fallback_oid` is specified.
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parents: 3720
diff changeset
   296
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parents: 3720
diff changeset
   297
        If specified `initargs` is expected to be a dictionnary containing
6e9f7abee4ef fix initargs handling
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parents: 3720
diff changeset
   298
        arguments that should be given to selection (hence to object's __init__
6e9f7abee4ef fix initargs handling
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parents: 3720
diff changeset
   299
        as well), but not to render(). Other arbitrary keyword arguments will be
6e9f7abee4ef fix initargs handling
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parents: 3720
diff changeset
   300
        given to selection *and* to render(), and so should be handled by
6e9f7abee4ef fix initargs handling
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parents: 3720
diff changeset
   301
        object's call or cell_call method..
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parents: 3720
diff changeset
   302
        """
6e9f7abee4ef fix initargs handling
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parents: 3720
diff changeset
   303
        if initargs is None:
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parents: 3720
diff changeset
   304
            initargs = kwargs
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parents: 3720
diff changeset
   305
        else:
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parents: 3720
diff changeset
   306
            initargs.update(kwargs)
3655
af86ab65a282 3.6 updates
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parents: 3629
diff changeset
   307
        try:
4070
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parents: 3720
diff changeset
   308
            view =  self.vreg[__registry].select(__vid, self, rset=rset, **initargs)
3655
af86ab65a282 3.6 updates
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parents: 3629
diff changeset
   309
        except RegistryException:
af86ab65a282 3.6 updates
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parents: 3629
diff changeset
   310
            view =  self.vreg[__registry].select(__fallback_oid, self,
4070
6e9f7abee4ef fix initargs handling
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 3720
diff changeset
   311
                                                 rset=rset, **initargs)
5516
232d13fc3e86 [req] avoid getting w in cw_extra_kwargs when calling .view
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parents: 5459
diff changeset
   312
        return view.render(w=w, **kwargs)
2823
a4e3e9b1a9cd backported from appobject
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2808
diff changeset
   313
2792
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Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   314
    def format_date(self, date, date_format=None, time=False):
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   315
        """return a string for a date time according to instance's
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   316
        configuration
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
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parents:
diff changeset
   317
        """
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   318
        if date:
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   319
            if date_format is None:
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   320
                if time:
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   321
                    date_format = self.property_value('ui.datetime-format')
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   322
                else:
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   323
                    date_format = self.property_value('ui.date-format')
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   324
            return ustrftime(date, date_format)
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   325
        return u''
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   326
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   327
    def format_time(self, time):
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   328
        """return a string for a time according to instance's
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   329
        configuration
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   330
        """
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   331
        if time:
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   332
            return ustrftime(time, self.property_value('ui.time-format'))
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   333
        return u''
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   334
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   335
    def format_float(self, num):
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   336
        """return a string for floating point number according to instance's
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   337
        configuration
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   338
        """
4459
f628abfb3a6c backport stable
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4307
diff changeset
   339
        if num is not None:
2792
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   340
            return self.property_value('ui.float-format') % num
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   341
        return u''
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   342
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   343
    def parse_datetime(self, value, etype='Datetime'):
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   344
        """get a datetime or time from a string (according to etype)
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   345
        Datetime formatted as Date are accepted
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   346
        """
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   347
        assert etype in ('Datetime', 'Date', 'Time'), etype
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   348
        # XXX raise proper validation error
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   349
        if etype == 'Datetime':
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   350
            format = self.property_value('ui.datetime-format')
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   351
            try:
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   352
                return todatetime(strptime(value, format))
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   353
            except ValueError:
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   354
                pass
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   355
        elif etype == 'Time':
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   356
            format = self.property_value('ui.time-format')
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   357
            try:
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   358
                # (adim) I can't find a way to parse a Time with a custom format
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   359
                date = strptime(value, format) # this returns a DateTime
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   360
                return time(date.hour, date.minute, date.second)
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   361
            except ValueError:
4222
5667f493c505 return localized message on parse_datetime errors
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4070
diff changeset
   362
                raise ValueError(self._('can\'t parse %(value)r (expected %(format)s)')
5667f493c505 return localized message on parse_datetime errors
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4070
diff changeset
   363
                                 % {'value': value, 'format': format})
2792
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   364
        try:
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   365
            format = self.property_value('ui.date-format')
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   366
            dt = strptime(value, format)
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   367
            if etype == 'Datetime':
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   368
                return todatetime(dt)
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   369
            return todate(dt)
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   370
        except ValueError:
4222
5667f493c505 return localized message on parse_datetime errors
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4070
diff changeset
   371
            raise ValueError(self._('can\'t parse %(value)r (expected %(format)s)')
5667f493c505 return localized message on parse_datetime errors
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4070
diff changeset
   372
                             % {'value': value, 'format': format})
2792
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   373
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   374
    # abstract methods to override according to the web front-end #############
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   375
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   376
    def base_url(self):
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   377
        """return the root url of the instance"""
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   378
        raise NotImplementedError
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   379
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   380
    def describe(self, eid):
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   381
        """return a tuple (type, sourceuri, extid) for the entity with id <eid>"""
135580d15d42 rename and move cw.RequestSessionMixIn to cw.req.RequestSessionBase; move some appobjects methods where they actually belong to
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
diff changeset
   382
        raise NotImplementedError
3659
993997b4b41d 3.6 update
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3655
diff changeset
   383
993997b4b41d 3.6 update
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3655
diff changeset
   384
    @property
993997b4b41d 3.6 update
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3655
diff changeset
   385
    @deprecated('[3.6] use _cw.vreg.config')
993997b4b41d 3.6 update
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3655
diff changeset
   386
    def config(self):
993997b4b41d 3.6 update
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3655
diff changeset
   387
        return self.vreg.config
993997b4b41d 3.6 update
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3655
diff changeset
   388
993997b4b41d 3.6 update
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3655
diff changeset
   389
    @property
993997b4b41d 3.6 update
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3655
diff changeset
   390
    @deprecated('[3.6] use _cw.vreg.schema')
993997b4b41d 3.6 update
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3655
diff changeset
   391
    def schema(self):
993997b4b41d 3.6 update
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 3655
diff changeset
   392
        return self.vreg.schema