[login] redirect to real instance root if no postlogin_path is provided
When not postlogin_path is provided, the login form issue a redirect to "/".
The instance root may not be at "/" on the server. Then issuing a redirect to
"/" send the user to the wrong location.
We now redirect to "." which works fine because the "login" controller a direct
children of instance root (http://babar.com/instance/login).
All other redirection of the login controller use relative path too and then
rely on this relative path from the login controleur to the instance root. This
mechanism may be considered fragile and may deserve a proper fix. but this is to
be discussed and implemented in another changeset.
# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of CubicWeb.
#
# CubicWeb is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with CubicWeb. If not, see <http://www.gnu.org/licenses/>.
"""some basic stuff to build dot generated graph images"""
__docformat__ = "restructuredtext en"
_ = unicode
import tempfile
import os
from logilab.mtconverter import xml_escape
from logilab.common.graph import GraphGenerator, DotBackend
from cubicweb.view import EntityView
from cubicweb.utils import make_uid
class DotGraphView(EntityView):
__abstract__ = True
backend_class = DotBackend
backend_kwargs = {'ratio': 'compress', 'size': '30,10'}
def cell_call(self, row, col):
entity = self.cw_rset.get_entity(row, col)
visitor = self.build_visitor(entity)
prophdlr = self.build_dotpropshandler()
graphname = 'dotgraph%s' % str(entity.eid)
generator = GraphGenerator(self.backend_class(graphname, None,
**self.backend_kwargs))
# map file
pmap, mapfile = tempfile.mkstemp(".map", graphname)
os.close(pmap)
# image file
fd, tmpfile = tempfile.mkstemp('.png')
os.close(fd)
generator.generate(visitor, prophdlr, tmpfile, mapfile)
filekeyid = make_uid()
self._cw.session.data[filekeyid] = tmpfile
self.w(u'<img src="%s" alt="%s" usemap="#%s" />' % (
xml_escape(entity.absolute_url(vid='tmppng', tmpfile=filekeyid)),
xml_escape(self._cw._('Data connection graph for %s') % entity.dc_title()),
graphname))
stream = open(mapfile, 'r').read()
stream = stream.decode(self._cw.encoding)
self.w(stream)
os.unlink(mapfile)
def build_visitor(self, entity):
raise NotImplementedError
def build_dotpropshandler(self):
return DotPropsHandler(self._cw)
class DotPropsHandler(object):
def __init__(self, req):
self._ = req._
def node_properties(self, entity):
"""return default DOT drawing options for a state or transition"""
return {'label': entity.dc_long_title(),
'href': entity.absolute_url(),
'fontname': 'Courier', 'fontsize': 10, 'shape':'box',
}
def edge_properties(self, transition, fromstate, tostate):
return {'label': '', 'dir': 'forward',
'color': 'black', 'style': 'filled'}