+
−"""common web configuration for twisted/modpython instances
+
−
+
−:organization: Logilab
+
−:copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
+
−:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
+
−:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
+
−"""
+
−__docformat__ = "restructuredtext en"
+
−_ = unicode
+
−
+
−import os
+
−from os.path import join, exists, split
+
−
+
−from logilab.common.decorators import cached
+
−
+
−from cubicweb.toolsutils import read_config
+
−from cubicweb.cwconfig import CubicWebConfiguration, register_persistent_options, merge_options
+
−
+
−
+
−register_persistent_options( (
+
−    # site-wide only web ui configuration
+
−    ('site-title',
+
−     {'type' : 'string', 'default': 'unset title',
+
−      'help': _('site title'),
+
−      'sitewide': True, 'group': 'ui',
+
−      }),
+
−    ('main-template',
+
−     {'type' : 'string', 'default': 'main-template',
+
−      'help': _('id of main template used to render pages'),
+
−      'sitewide': True, 'group': 'ui',
+
−      }),
+
−    # user web ui configuration
+
−    ('fckeditor',
+
−     {'type' : 'yn', 'default': True,
+
−      'help': _('should html fields being edited using fckeditor (a HTML '
+
−                'WYSIWYG editor).  You should also select text/html as default '
+
−                'text format to actually get fckeditor.'),
+
−      'group': 'ui',
+
−      }),
+
−    # navigation configuration
+
−    ('page-size',
+
−     {'type' : 'int', 'default': 40,
+
−      'help': _('maximum number of objects displayed by page of results'),
+
−      'group': 'navigation',
+
−      }),
+
−    ('related-limit',
+
−     {'type' : 'int', 'default': 8,
+
−      'help': _('maximum number of related entities to display in the primary '
+
−                'view'),
+
−      'group': 'navigation',
+
−      }),
+
−    ('combobox-limit',
+
−     {'type' : 'int', 'default': 20,
+
−      'help': _('maximum number of entities to display in related combo box'),
+
−      'group': 'navigation',
+
−      }),
+
−
+
−    ))
+
−
+
−
+
−class WebConfiguration(CubicWebConfiguration):
+
−    """the WebConfiguration is a singleton object handling instance's
+
−    configuration and preferences
+
−    """
+
−    cubicweb_appobject_path = CubicWebConfiguration.cubicweb_appobject_path | set(['web/views'])
+
−    cube_appobject_path = CubicWebConfiguration.cube_appobject_path | set(['views'])
+
−
+
−    options = merge_options(CubicWebConfiguration.options + (
+
−        ('anonymous-user',
+
−         {'type' : 'string',
+
−          'default': None,
+
−          'help': 'login of the CubicWeb user account to use for anonymous user (if you want to allow anonymous)',
+
−          'group': 'main', 'inputlevel': 1,
+
−          }),
+
−        ('anonymous-password',
+
−         {'type' : 'string',
+
−          'default': None,
+
−          'help': 'password of the CubicWeb user account to use for anonymous user, '
+
−          'if anonymous-user is set',
+
−          'group': 'main', 'inputlevel': 1,
+
−          }),
+
−        ('query-log-file',
+
−         {'type' : 'string',
+
−          'default': None,
+
−          'help': 'web instance query log file',
+
−          'group': 'main', 'inputlevel': 2,
+
−          }),
+
−        # web configuration
+
−        ('https-url',
+
−         {'type' : 'string',
+
−          'default': None,
+
−          'help': 'web server root url on https. By specifying this option your '\
+
−          'site can be available as an http and https site. Authenticated users '\
+
−          'will in this case be authenticated and once done navigate through the '\
+
−          'https site. IMPORTANTE NOTE: to do this work, you should have your '\
+
−          'apache redirection include "https" as base url path so cubicweb can '\
+
−          'differentiate between http vs https access. For instance: \n'\
+
−          'RewriteRule ^/demo/(.*) http://127.0.0.1:8080/https/$1 [L,P]\n'\
+
−          'where the cubicweb web server is listening on port 8080.',
+
−          'group': 'main', 'inputlevel': 2,
+
−          }),
+
−        ('auth-mode',
+
−         {'type' : 'choice',
+
−          'choices' : ('cookie', 'http'),
+
−          'default': 'cookie',
+
−          'help': 'authentication mode (cookie / http)',
+
−          'group': 'web', 'inputlevel': 1,
+
−          }),
+
−        ('realm',
+
−         {'type' : 'string',
+
−          'default': 'cubicweb',
+
−          'help': 'realm to use on HTTP authentication mode',
+
−          'group': 'web', 'inputlevel': 2,
+
−          }),
+
−        ('http-session-time',
+
−         {'type' : 'int',
+
−          'default': 0,
+
−          'help': "duration in minutes of the cookie used to store session "
+
−          "identifier. If 0, the cookie will expire when the user exist its "
+
−          "browser. Should be 0 or greater than repository\'s session-time.",
+
−          'group': 'web', 'inputlevel': 2,
+
−          }),
+
−        ('cleanup-session-time',
+
−         {'type' : 'int',
+
−          'default': 1440,
+
−          'help': 'duration of inactivity in minutes after which a connection '
+
−          'will be closed, to limit memory consumption (avoid sessions that '
+
−          'never expire and cause memory leak when http-session-time is 0). '
+
−          'So even if http-session-time is 0 and the user don\'t close his '
+
−          'browser, he will have to reauthenticate after this time of '
+
−          'inactivity. Default to 24h.',
+
−          'group': 'web', 'inputlevel': 2,
+
−          }),
+
−        ('cleanup-anonymous-session-time',
+
−         {'type' : 'int',
+
−          'default': 5,
+
−          'help': 'Same as cleanup-session-time but specific to anonymous '
+
−          'sessions. You can have a much smaller timeout here since it will be '
+
−          'transparent to the user. Default to 5min.',
+
−          'group': 'web', 'inputlevel': 2,
+
−          }),
+
−        ('force-html-content-type',
+
−         {'type' : 'yn',
+
−          'default': False,
+
−          'help': 'force text/html content type for your html pages instead of cubicweb user-agent based'\
+
−          'deduction of an appropriate content type',
+
−          'group': 'web', 'inputlevel': 2,
+
−          }),
+
−        ('embed-allowed',
+
−         {'type' : 'regexp',
+
−          'default': None,
+
−          'help': 'regular expression matching URLs that may be embeded. \
+
−leave it blank if you don\'t want the embedding feature, or set it to ".*" \
+
−if you want to allow everything',
+
−          'group': 'web', 'inputlevel': 1,
+
−          }),
+
−        ('submit-mail',
+
−         {'type' : 'string',
+
−          'default': None,
+
−          'help': ('Mail used as recipient to report bug in this instance, '
+
−                   'if you want this feature on'),
+
−          'group': 'web', 'inputlevel': 2,
+
−          }),
+
−
+
−        ('language-negociation',
+
−         {'type' : 'yn',
+
−          'default': True,
+
−          'help': 'use Accept-Language http header to try to set user '\
+
−          'interface\'s language according to browser defined preferences',
+
−          'group': 'web', 'inputlevel': 2,
+
−          }),
+
−
+
−        ('print-traceback',
+
−         {'type' : 'yn',
+
−          'default': CubicWebConfiguration.mode != 'system',
+
−          'help': 'print the traceback on the error page when an error occured',
+
−          'group': 'web', 'inputlevel': 2,
+
−          }),
+
−
+
−        ('captcha-font-file',
+
−         {'type' : 'string',
+
−          'default': join(CubicWebConfiguration.shared_dir(), 'data', 'porkys.ttf'),
+
−          'help': 'True type font to use for captcha image generation (you \
+
−must have the python imaging library installed to use captcha)',
+
−          'group': 'web', 'inputlevel': 2,
+
−          }),
+
−        ('captcha-font-size',
+
−         {'type' : 'int',
+
−          'default': 25,
+
−          'help': 'Font size to use for captcha image generation (you must \
+
−have the python imaging library installed to use captcha)',
+
−          'group': 'web', 'inputlevel': 2,
+
−          }),
+
−
+
−        ))
+
−
+
−    def fckeditor_installed(self):
+
−        return exists(self.ext_resources['FCKEDITOR_PATH'])
+
−
+
−    def eproperty_definitions(self):
+
−        for key, pdef in super(WebConfiguration, self).eproperty_definitions():
+
−            if key == 'ui.fckeditor' and not self.fckeditor_installed():
+
−                continue
+
−            yield key, pdef
+
−
+
−    # method used to connect to the repository: 'inmemory' / 'pyro'
+
−    # Pyro repository by default
+
−    repo_method = 'pyro'
+
−
+
−    # don't use @cached: we want to be able to disable it while this must still
+
−    # be cached
+
−    def repository(self, vreg=None):
+
−        """return the instance's repository object"""
+
−        try:
+
−            return self.__repo
+
−        except AttributeError:
+
−            from cubicweb.dbapi import get_repository
+
−            if self.repo_method == 'inmemory':
+
−                repo = get_repository('inmemory', vreg=vreg, config=self)
+
−            else:
+
−                repo = get_repository('pyro', self['pyro-instance-id'],
+
−                                      config=self)
+
−            self.__repo = repo
+
−            return repo
+
−
+
−    def vc_config(self):
+
−        return self.repository().get_versions()
+
−
+
−    # mapping to external resources (id -> path) (`external_resources` file) ##
+
−    ext_resources = {
+
−        'FAVICON':  'DATADIR/favicon.ico',
+
−        'LOGO':     'DATADIR/logo.png',
+
−        'RSS_LOGO': 'DATADIR/rss.png',
+
−        'HELP':     'DATADIR/help.png',
+
−        'CALENDAR_ICON': 'DATADIR/calendar.gif',
+
−        'SEARCH_GO':'DATADIR/go.png',
+
−
+
−        'FCKEDITOR_PATH':  '/usr/share/fckeditor/',
+
−
+
−        'IE_STYLESHEETS':    ['DATADIR/cubicweb.ie.css'],
+
−        'STYLESHEETS':       ['DATADIR/cubicweb.css'],
+
−        'STYLESHEETS_PRINT': ['DATADIR/cubicweb.print.css'],
+
−
+
−        'JAVASCRIPTS':       ['DATADIR/jquery.js',
+
−                              'DATADIR/jquery.corner.js',
+
−                              'DATADIR/jquery.json.js',
+
−                              'DATADIR/cubicweb.compat.js',
+
−                              'DATADIR/cubicweb.python.js',
+
−                              'DATADIR/cubicweb.htmlhelpers.js'],
+
−        }
+
−
+
−
+
−    def anonymous_user(self):
+
−        """return a login and password to use for anonymous users. None
+
−        may be returned for both if anonymous connections are not allowed
+
−        """
+
−        try:
+
−            user = self['anonymous-user']
+
−            passwd = self['anonymous-password']
+
−        except KeyError:
+
−            user, passwd = None, None
+
−        if user is not None:
+
−            user = unicode(user)
+
−        return user, passwd
+
−
+
−    def has_resource(self, rid):
+
−        """return true if an external resource is defined"""
+
−        return bool(self.ext_resources.get(rid))
+
−
+
−    @cached
+
−    def locate_resource(self, rid):
+
−        """return the directory where the given resource may be found"""
+
−        return self._fs_locate(rid, 'data')
+
−
+
−    @cached
+
−    def locate_doc_file(self, fname):
+
−        """return the directory where the given resource may be found"""
+
−        return self._fs_locate(fname, 'wdoc')
+
−
+
−    def _fs_locate(self, rid, rdirectory):
+
−        """return the directory where the given resource may be found"""
+
−        path = [self.apphome] + self.cubes_path() + [join(self.shared_dir())]
+
−        for directory in path:
+
−            if exists(join(directory, rdirectory, rid)):
+
−                return join(directory, rdirectory)
+
−
+
−    def locate_all_files(self, rid, rdirectory='wdoc'):
+
−        """return all files corresponding to the given resource"""
+
−        path = [self.apphome] + self.cubes_path() + [join(self.shared_dir())]
+
−        for directory in path:
+
−            fpath = join(directory, rdirectory, rid)
+
−            if exists(fpath):
+
−                yield join(fpath)
+
−
+
−    def load_configuration(self):
+
−        """load instance's configuration files"""
+
−        super(WebConfiguration, self).load_configuration()
+
−        # load external resources definition
+
−        self._build_ext_resources()
+
−        self._init_base_url()
+
−
+
−    def _init_base_url(self):
+
−        # normalize base url(s)
+
−        baseurl = self['base-url'] or self.default_base_url()
+
−        if baseurl and baseurl[-1] != '/':
+
−            baseurl += '/'
+
−        if not self.repairing:
+
−            self.global_set_option('base-url', baseurl)
+
−        httpsurl = self['https-url']
+
−        if httpsurl and httpsurl[-1] != '/':
+
−            httpsurl += '/'
+
−            if not self.repairing:
+
−                self.global_set_option('https-url', httpsurl)
+
−
+
−    def _build_ext_resources(self):
+
−        libresourcesfile = join(self.shared_dir(), 'data', 'external_resources')
+
−        self.ext_resources.update(read_config(libresourcesfile))
+
−        for path in reversed([self.apphome] + self.cubes_path()):
+
−            resourcesfile = join(path, 'data', 'external_resources')
+
−            if exists(resourcesfile):
+
−                self.debug('loading %s', resourcesfile)
+
−                self.ext_resources.update(read_config(resourcesfile))
+
−        resourcesfile = join(self.apphome, 'external_resources')
+
−        if exists(resourcesfile):
+
−            self.debug('loading %s', resourcesfile)
+
−            self.ext_resources.update(read_config(resourcesfile))
+
−        for resource in ('STYLESHEETS', 'STYLESHEETS_PRINT',
+
−                         'IE_STYLESHEETS', 'JAVASCRIPTS'):
+
−            val = self.ext_resources[resource]
+
−            if isinstance(val, str):
+
−                files = [w.strip() for w in val.split(',') if w.strip()]
+
−                self.ext_resources[resource] = files
+
−
+
−
+
−    # static files handling ###################################################
+
−
+
−    @property
+
−    def static_directory(self):
+
−        return join(self.appdatahome, 'static')
+
−
+
−    def static_file_exists(self, rpath):
+
−        return exists(join(self.static_directory, rpath))
+
−
+
−    def static_file_open(self, rpath, mode='wb'):
+
−        staticdir = self.static_directory
+
−        rdir, filename = split(rpath)
+
−        if rdir:
+
−            staticdir = join(staticdir, rdir)
+
−            os.makedirs(staticdir)
+
−        return file(join(staticdir, filename), mode)
+
−
+
−    def static_file_add(self, rpath, data):
+
−        stream = self.static_file_open(rpath)
+
−        stream.write(data)
+
−        stream.close()
+
−
+
−    def static_file_del(self, rpath):
+
−        if self.static_file_exists(rpath):
+
−            os.remove(join(self.static_directory, rpath))