web/webconfig.py
author sylvain.thenault@logilab.fr
Wed, 13 May 2009 09:13:26 +0200
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"""common web configuration for twisted/modpython applications
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:organization: Logilab
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:copyright: 2001-2009 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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__docformat__ = "restructuredtext en"
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import os
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from os.path import join, exists, split
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from logilab.common.configuration import Method
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from logilab.common.decorators import cached
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from cubicweb.toolsutils import read_config
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from cubicweb.cwconfig import CubicWebConfiguration, register_persistent_options, merge_options
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_ = unicode
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register_persistent_options( (
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    # site-wide only web ui configuration
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    ('site-title',
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     {'type' : 'string', 'default': 'unset title',
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      'help': _('site title'),
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      'sitewide': True, 'group': 'ui', 
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      }),
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    ('main-template',
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     {'type' : 'string', 'default': 'main-template',
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      'help': _('id of main template used to render pages'),
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      'sitewide': True, 'group': 'ui',
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      }),
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    # user web ui configuration
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    ('fckeditor',
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     {'type' : 'yn', 'default': True,
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      'help': _('should html fields being edited using fckeditor (a HTML '
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                'WYSIWYG editor).  You should also select text/html as default '
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                'text format to actually get fckeditor.'),
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      'group': 'ui',
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      }),
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    # navigation configuration
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    ('page-size',
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     {'type' : 'int', 'default': 40,
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      'help': _('maximum number of objects displayed by page of results'),
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      'group': 'navigation',
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      }),
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    ('related-limit',
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     {'type' : 'int', 'default': 8,
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      'help': _('maximum number of related entities to display in the primary '
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                'view'),
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      'group': 'navigation',
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      }),
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    ('combobox-limit',
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     {'type' : 'int', 'default': 20,
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      'help': _('maximum number of entities to display in related combo box'),
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      'group': 'navigation',
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      }),
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    ))
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class WebConfiguration(CubicWebConfiguration):
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    """the WebConfiguration is a singleton object handling application's
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    configuration and preferences
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    """
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    cubicweb_vobject_path = CubicWebConfiguration.cubicweb_vobject_path | set(['web/views'])
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    cube_vobject_path = CubicWebConfiguration.cube_vobject_path | set(['views'])
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    options = merge_options(CubicWebConfiguration.options + (
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        ('anonymous-user',
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         {'type' : 'string',
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          'default': None,
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          'help': 'login of the CubicWeb user account to use for anonymous user (if you want to allow anonymous)',
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          'group': 'main', 'inputlevel': 1,
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          }),
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        ('anonymous-password',
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         {'type' : 'string',
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          'default': None,
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          'help': 'password of the CubicWeb user account to use for anonymous user, '
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          'if anonymous-user is set',
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          'group': 'main', 'inputlevel': 1,
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          }),
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        ('allow-email-login',
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         {'type' : 'yn',
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          'default': False,
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          'help': 'allow users to login with their primary email if set',
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          'group': 'main', 'inputlevel': 2,
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          }),
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        ('query-log-file',
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         {'type' : 'string',
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          'default': None,
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          'help': 'web application query log file',
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          'group': 'main', 'inputlevel': 2,
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          }),
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        ('pyro-application-id',
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         {'type' : 'string',
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          'default': Method('default_application_id'),
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          'help': 'CubicWeb application identifier in the Pyro name server',
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          'group': 'pyro-client', 'inputlevel': 1,
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          }),
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        # web configuration
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        ('https-url',
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         {'type' : 'string',
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          'default': None,
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          'help': 'web server root url on https. By specifying this option your '\
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          'site can be available as an http and https site. Authenticated users '\
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          'will in this case be authenticated and once done navigate through the '\
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          'https site. IMPORTANTE NOTE: to do this work, you should have your '\
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          'apache redirection include "https" as base url path so cubicweb can '\
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          'differentiate between http vs https access. For instance: \n'\
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          'RewriteRule ^/demo/(.*) http://127.0.0.1:8080/https/$1 [L,P]\n'\
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          'where the cubicweb web server is listening on port 8080.',
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          'group': 'main', 'inputlevel': 2,
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          }),
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        ('auth-mode',
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         {'type' : 'choice',
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          'choices' : ('cookie', 'http'),
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          'default': 'cookie',
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          'help': 'authentication mode (cookie / http)',
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          'group': 'web', 'inputlevel': 1,
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          }),
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        ('realm',
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         {'type' : 'string',
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          'default': 'cubicweb',
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          'help': 'realm to use on HTTP authentication mode',
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          'group': 'web', 'inputlevel': 2,
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          }),
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        ('http-session-time',
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         {'type' : 'int',
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          'default': 0,
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          'help': 'duration in seconds for HTTP sessions. 0 mean no expiration. '\
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          'Should be greater than RQL server\'s session-time.',
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          'group': 'web', 'inputlevel': 2,
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          }),
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        ('cleanup-session-time',
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         {'type' : 'int',
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          'default': 43200,
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          'help': 'duration in seconds for which unused connections should be '\
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          'closed, to limit memory consumption. This is different from '\
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          'http-session-time since in some cases you may have an unexpired http '\
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          'session (e.g. valid session cookie) which will trigger transparent '\
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          'creation of a new session. In other cases, sessions may never expire \
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          and cause memory leak. Should be smaller than http-session-time, '\
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          'unless it\'s 0. Default to 12 h.',
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          'group': 'web', 'inputlevel': 2,
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          }),
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        ('cleanup-anonymous-session-time',
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         {'type' : 'int',
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          'default': 120,
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          'help': 'Same as cleanup-session-time but specific to anonymous '\
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          'sessions. Default to 2 min.',
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          'group': 'web', 'inputlevel': 2,
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          }),
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        ('embed-allowed',
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         {'type' : 'regexp',
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          'default': None,
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          'help': 'regular expression matching URLs that may be embeded. \
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leave it blank if you don\'t want the embedding feature, or set it to ".*" \
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if you want to allow everything',
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   159
          'group': 'web', 'inputlevel': 1,
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          }),
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        ('submit-url',
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         {'type' : 'string',
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          'default': Method('default_submit_url'),
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          'help': ('URL that may be used to report bug in this application '
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                   'by direct access to the project\'s (jpl) tracker, '
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                   'if you want this feature on. The url should looks like '
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                   'http://mytracker.com/view?__linkto=concerns:1234:subject&etype=Ticket&type=bug&vid=creation '
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                   'where 1234 should be replaced by the eid of your project in '
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   169
                   'the tracker. If you have no idea about what I\'am talking '
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                   'about, you should probably let no value for this option.'),
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          'group': 'web', 'inputlevel': 2,
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   172
          }),
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        ('submit-mail',
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         {'type' : 'string',
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          'default': None,
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          'help': ('Mail used as recipient to report bug in this application, '
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                   'if you want this feature on'),
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          'group': 'web', 'inputlevel': 2,
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   179
          }),
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   180
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        ('language-negociation',
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         {'type' : 'yn',
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   183
          'default': True,
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          'help': 'use Accept-Language http header to try to set user '\
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          'interface\'s language according to browser defined preferences',
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          'group': 'web', 'inputlevel': 2,
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   187
          }),
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   188
        
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   189
        ('print-traceback',
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   190
         {'type' : 'yn',
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   191
          'default': not CubicWebConfiguration.mode == 'installed',
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   192
          'help': 'print the traceback on the error page when an error occured',
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   193
          'group': 'web', 'inputlevel': 2,
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   194
          }),
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   195
        ))
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   196
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   197
    def default_submit_url(self):
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   198
        try:
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            cube = self.cubes()[0]
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            cubeeid = self.cube_pkginfo(cube).cube_eid
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   201
        except Exception:
0
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   202
            return None
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   203
        if cubeeid:
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   204
            return 'http://intranet.logilab.fr/jpl/view?__linkto=concerns:%s:subject&etype=Ticket&type=bug&vid=creation' % cubeeid
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        return None
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   206
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    def fckeditor_installed(self):
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        return exists(self.ext_resources['FCKEDITOR_PATH'])
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diff changeset
   209
    
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   210
    def eproperty_definitions(self):
893
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   211
        for key, pdef in super(WebConfiguration, self).eproperty_definitions():
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   212
            if key == 'ui.fckeditor' and not self.fckeditor_installed():
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   213
                continue
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diff changeset
   214
            yield key, pdef
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diff changeset
   215
                
0
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   216
    # method used to connect to the repository: 'inmemory' / 'pyro'
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   217
    # Pyro repository by default
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    repo_method = 'pyro'
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   219
    
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   220
    # don't use @cached: we want to be able to disable it while this must still
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   221
    # be cached
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   222
    def repository(self, vreg=None):
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   223
        """return the application's repository object"""
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diff changeset
   224
        try:
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   225
            return self.__repo
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   226
        except AttributeError:
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   227
            from cubicweb.dbapi import get_repository
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diff changeset
   228
            if self.repo_method == 'inmemory':
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diff changeset
   229
                repo = get_repository('inmemory', vreg=vreg, config=self)
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diff changeset
   230
            else:
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diff changeset
   231
                repo = get_repository('pyro', self['pyro-application-id'],
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   232
                                      config=self)
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   233
            self.__repo = repo
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diff changeset
   234
            return repo
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parents:
diff changeset
   235
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   236
    def vc_config(self):
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   237
        return self.repository().get_versions()
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diff changeset
   238
    
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diff changeset
   239
    # mapping to external resources (id -> path) (`external_resources` file) ##
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diff changeset
   240
    ext_resources = {
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diff changeset
   241
        'FAVICON':  'DATADIR/favicon.ico',
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diff changeset
   242
        'LOGO':     'DATADIR/logo.png',
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parents:
diff changeset
   243
        'RSS_LOGO': 'DATADIR/rss.png',
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diff changeset
   244
        'HELP':     'DATADIR/help.png',
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parents:
diff changeset
   245
        'CALENDAR_ICON': 'DATADIR/calendar.gif',
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parents:
diff changeset
   246
        'SEARCH_GO':'DATADIR/go.png',
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parents:
diff changeset
   247
        
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diff changeset
   248
        'FCKEDITOR_PATH':  '/usr/share/fckeditor/',
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parents:
diff changeset
   249
        
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diff changeset
   250
        'IE_STYLESHEETS':    ['DATADIR/cubicweb.ie.css'],
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diff changeset
   251
        'STYLESHEETS':       ['DATADIR/cubicweb.css'],
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diff changeset
   252
        'STYLESHEETS_PRINT': ['DATADIR/cubicweb.print.css'],
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parents:
diff changeset
   253
        
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diff changeset
   254
        'JAVASCRIPTS':       ['DATADIR/jquery.js',
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25ef1dddaab8 round corners are back
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diff changeset
   255
                              'DATADIR/jquery.corner.js',
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diff changeset
   256
                              'DATADIR/jquery.json.js',
0
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diff changeset
   257
                              'DATADIR/cubicweb.compat.js',
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diff changeset
   258
                              'DATADIR/cubicweb.python.js',
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diff changeset
   259
                              'DATADIR/cubicweb.htmlhelpers.js'],
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diff changeset
   260
        }
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parents:
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    def anonymous_user(self):
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        """return a login and password to use for anonymous users. None
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        may be returned for both if anonymous connections are not allowed
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        """
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        try:
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            user = self['anonymous-user']
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            passwd = self['anonymous-password']
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        except KeyError:
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            user, passwd = None, None
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        if user is not None:
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            user = unicode(user)
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        return user, passwd
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    def has_resource(self, rid):
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        """return true if an external resource is defined"""
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        return bool(self.ext_resources.get(rid))
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    @cached
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    def locate_resource(self, rid):
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        """return the directory where the given resource may be found"""
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        return self._fs_locate(rid, 'data')
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    @cached
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    def locate_doc_file(self, fname):
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        """return the directory where the given resource may be found"""
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        return self._fs_locate(fname, 'wdoc')
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    def _fs_locate(self, rid, rdirectory):
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        """return the directory where the given resource may be found"""
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        path = [self.apphome] + self.cubes_path() + [join(self.shared_dir())]
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        for directory in path:
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            if exists(join(directory, rdirectory, rid)):
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                return join(directory, rdirectory)
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    def locate_all_files(self, rid, rdirectory='wdoc'):
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        """return all files corresponding to the given resource"""
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        path = [self.apphome] + self.cubes_path() + [join(self.shared_dir())]
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        for directory in path:
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            fpath = join(directory, rdirectory, rid)
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            if exists(fpath):
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                yield join(fpath)
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    def load_configuration(self):
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        """load application's configuration files"""
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        super(WebConfiguration, self).load_configuration()
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        # load external resources definition
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        self._build_ext_resources()
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        self._init_base_url()
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    def _init_base_url(self):
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        # normalize base url(s)
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        baseurl = self['base-url']
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   315
        if baseurl and baseurl[-1] != '/':
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   316
            baseurl += '/'
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            self.global_set_option('base-url', baseurl)
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   318
        httpsurl = self['https-url']
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   319
        if httpsurl and httpsurl[-1] != '/':
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            httpsurl += '/'
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   321
            self.global_set_option('https-url', httpsurl)
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   322
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   323
    def _build_ext_resources(self):
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   324
        libresourcesfile = join(self.shared_dir(), 'data', 'external_resources')
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   325
        self.ext_resources.update(read_config(libresourcesfile))
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   326
        for path in reversed([self.apphome] + self.cubes_path()):
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   327
            resourcesfile = join(path, 'data', 'external_resources')
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   328
            if exists(resourcesfile):
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   329
                self.debug('loading %s', resourcesfile)
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diff changeset
   330
                self.ext_resources.update(read_config(resourcesfile))
252
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diff changeset
   331
        resourcesfile = join(self.apphome, 'external_resources')
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diff changeset
   332
        if exists(resourcesfile):
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diff changeset
   333
            self.debug('loading %s', resourcesfile)
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diff changeset
   334
            self.ext_resources.update(read_config(resourcesfile))
0
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diff changeset
   335
        for resource in ('STYLESHEETS', 'STYLESHEETS_PRINT',
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diff changeset
   336
                         'IE_STYLESHEETS', 'JAVASCRIPTS'):
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diff changeset
   337
            val = self.ext_resources[resource]
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diff changeset
   338
            if isinstance(val, str):
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diff changeset
   339
                files = [w.strip() for w in val.split(',') if w.strip()]
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   340
                self.ext_resources[resource] = files
151
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diff changeset
   341
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diff changeset
   342
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diff changeset
   343
    # static files handling ###################################################
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diff changeset
   344
    
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diff changeset
   345
    @property
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diff changeset
   346
    def static_directory(self):
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diff changeset
   347
        return join(self.appdatahome, 'static')
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diff changeset
   348
    
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   349
    def static_file_exists(self, rpath):
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   350
        return exists(join(self.static_directory, rpath))
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diff changeset
   351
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diff changeset
   352
    def static_file_open(self, rpath, mode='wb'):
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diff changeset
   353
        staticdir = self.static_directory
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diff changeset
   354
        rdir, filename = split(rpath)
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diff changeset
   355
        if rdir:
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diff changeset
   356
            staticdir = join(staticdir, rdir)
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diff changeset
   357
            os.makedirs(staticdir)
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diff changeset
   358
        return file(join(staticdir, filename), mode)
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diff changeset
   359
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diff changeset
   360
    def static_file_add(self, rpath, data):
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diff changeset
   361
        stream = self.static_file_open(rpath)
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diff changeset
   362
        stream.write(data)
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diff changeset
   363
        stream.close()
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diff changeset
   364
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diff changeset
   365
    def static_file_del(self, rpath):
447
0e52d72104a6 pylint fixes
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diff changeset
   366
        if self.static_file_exists(rpath):
151
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diff changeset
   367
            os.remove(join(self.static_directory, rpath))
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diff changeset
   368