# copyright 2003-2012 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/>.
"""web ui configuration for cubicweb instances"""
__docformat__ = "restructuredtext en"
_ = unicode
import os
import hmac
from uuid import uuid4
from os.path import join, exists, split, isdir
from warnings import warn
from logilab.common.decorators import cached, cachedproperty
from logilab.common.deprecation import deprecated
from logilab.common.configuration import merge_options
from cubicweb import ConfigurationError
from cubicweb.toolsutils import read_config
from cubicweb.cwconfig import CubicWebConfiguration, register_persistent_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([join('web', 'views')])
cube_appobject_path = CubicWebConfiguration.cube_appobject_path | set(['views'])
options = merge_options(CubicWebConfiguration.options + (
('repository-uri',
{'type' : 'string',
'default': 'inmemory://',
'help': 'see `cubicweb.dbapi.connect` documentation for possible value',
'group': 'web', 'level': 2,
}),
('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': 'web', 'level': 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': 'web', 'level': 1,
}),
('query-log-file',
{'type' : 'string',
'default': None,
'help': 'web instance query log file',
'group': 'web', 'level': 3,
}),
# web configuration
('ui-cube',
{'type' : 'string',
'default': None,
'help': 'the name of the UI cube that will be loaded before all other '\
'cubes. Setting this value to None will instruct cubicweb not to load '\
'any extra cube.',
'group': 'web', 'level': 3,
}),
('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', 'level': 3,
}),
('https-deny-anonymous',
{'type': 'yn',
'default': False,
'help': 'Prevent anonymous user to browse through https version of '
'the site (https-url). Login form will then be displayed '
'until logged',
'group': 'web',
'level': 2
}
),
('auth-mode',
{'type' : 'choice',
'choices' : ('cookie', 'http'),
'default': 'cookie',
'help': 'authentication mode (cookie / http)',
'group': 'web', 'level': 3,
}),
('realm',
{'type' : 'string',
'default': 'cubicweb',
'help': 'realm to use on HTTP authentication mode',
'group': 'web', 'level': 3,
}),
('http-session-time',
{'type' : 'time',
'default': 0,
'help': "duration 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', 'level': 2,
}),
('cleanup-anonymous-session-time',
{'type' : 'time',
'default': '5min',
'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', 'level': 3,
}),
('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', 'level': 3,
}),
('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', 'level': 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', 'level': 2,
}),
('print-traceback',
{'type' : 'yn',
'default': CubicWebConfiguration.mode != 'system',
'help': 'print the traceback on the error page when an error occurred',
'group': 'web', 'level': 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', 'level': 3,
}),
('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', 'level': 3,
}),
('use-old-css',
{'type' : 'yn',
'default': True,
'help': 'use cubicweb.old.css instead of 3.9 cubicweb.css',
'group': 'web', 'level': 2,
}),
('concat-resources',
{'type' : 'yn',
'default': True,
'help': 'use modconcat-like URLS to concat and serve JS / CSS files',
'group': 'web', 'level': 2,
}),
('anonymize-jsonp-queries',
{'type': 'yn',
'default': True,
'help': 'anonymize the connection before executing any jsonp query.',
'group': 'web', 'level': 1
}),
('generate-staticdir',
{'type': 'yn',
'default': True,
'help': 'Generate the static data resource directory on upgrade.',
'group': 'web', 'level': 2,
}),
('staticdir-path',
{'type': 'string',
'default': None,
'help': 'The static data resource directory path.',
'group': 'web', 'level': 2,
}),
('access-control-allow-origin',
{'type' : 'csv',
'default': (),
'help':('comma-separated list of allowed origin domains or "*" for any domain'),
'group': 'web', 'level': 2,
}),
('access-control-allow-methods',
{'type' : 'csv',
'default': (),
'help': ('comma-separated list of allowed HTTP methods'),
'group': 'web', 'level': 2,
}),
('access-control-max-age',
{'type' : 'int',
'default': None,
'help': ('maximum age of cross-origin resource sharing (in seconds)'),
'group': 'web', 'level': 2,
}),
('access-control-expose-headers',
{'type' : 'csv',
'default': (),
'help':('comma-separated list of HTTP headers the application declare in response to a preflight request'),
'group': 'web', 'level': 2,
}),
('access-control-allow-headers',
{'type' : 'csv',
'default': (),
'help':('comma-separated list of HTTP headers the application may set in the response'),
'group': 'web', 'level': 2,
}),
))
def __init__(self, *args, **kwargs):
super(WebConfiguration, self).__init__(*args, **kwargs)
self.uiprops = None
self.https_uiprops = None
self.datadir_url = None
self.https_datadir_url = None
def fckeditor_installed(self):
if self.uiprops is None:
return False
return exists(self.uiprops.get('FCKEDITOR_PATH', ''))
def cwproperty_definitions(self):
for key, pdef in super(WebConfiguration, self).cwproperty_definitions():
if key == 'ui.fckeditor' and not self.fckeditor_installed():
continue
yield key, pdef
# 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.repoapi import get_repository
repo = get_repository(config=self, vreg=vreg)
self.__repo = repo
return repo
def vc_config(self):
return self.repository().get_versions()
def anonymous_user(self):
"""return a login and password to use for anonymous users.
None may be returned for both if anonymous connection is not
allowed or if an empty login is used in configuration
"""
try:
user = self['anonymous-user'] or None
passwd = self['anonymous-password']
if user:
user = unicode(user)
except KeyError:
user, passwd = None, None
except UnicodeDecodeError:
raise ConfigurationError("anonymous information should only contains ascii")
return user, passwd
@cachedproperty
def _instance_salt(self):
"""This random key/salt is used to sign content to be sent back by
browsers, eg. in the error report form.
"""
return str(uuid4())
def sign_text(self, text):
"""sign some text for later checking"""
# hmac.new expect bytes
if isinstance(text, unicode):
text = text.encode('utf-8')
# replace \r\n so we do not depend on whether a browser "reencode"
# original message using \r\n or not
return hmac.new(self._instance_salt,
text.strip().replace('\r\n', '\n')).hexdigest()
def check_text_sign(self, text, signature):
"""check the text signature is equal to the given signature"""
return self.sign_text(text) == signature
def locate_resource(self, rid):
"""return the (directory, filename) where the given resource
may be found
"""
return self._fs_locate(rid, 'data')
def locate_doc_file(self, fname):
"""return the directory where the given resource may be found"""
return self._fs_locate(fname, 'wdoc')[0]
@cached
def _fs_path_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 directory
def _fs_locate(self, rid, rdirectory):
"""return the (directory, filename) where the given resource
may be found
"""
directory = self._fs_path_locate(rid, rdirectory)
if directory is None:
return None, None
if rdirectory == 'data' and rid.endswith('.css'):
if self['use-old-css'] and rid == 'cubicweb.css':
# @import('cubicweb.css') in css
rid = 'cubicweb.old.css'
return self.uiprops.process_resource(join(directory, rdirectory), rid), rid
return join(directory, rdirectory), rid
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._init_base_url()
self._build_ui_properties()
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 or self.creating):
self.global_set_option('base-url', baseurl)
httpsurl = self['https-url']
data_relpath = self.data_relpath()
if httpsurl:
if httpsurl[-1] != '/':
httpsurl += '/'
if not self.repairing:
self.global_set_option('https-url', httpsurl)
self.https_datadir_url = httpsurl + data_relpath
self.datadir_url = baseurl + data_relpath
def data_relpath(self):
if self.mode == 'test':
return 'data/'
return 'data/%s/' % self.instance_md5_version()
def _build_ui_properties(self):
# self.datadir_url[:-1] to remove trailing /
from cubicweb.web.propertysheet import PropertySheet
cachedir = join(self.appdatahome, 'uicache')
self.check_writeable_uid_directory(cachedir)
self.uiprops = PropertySheet(
cachedir,
data=lambda x: self.datadir_url + x,
datadir_url=self.datadir_url[:-1])
self._init_uiprops(self.uiprops)
if self['https-url']:
cachedir = join(self.appdatahome, 'uicachehttps')
self.check_writeable_uid_directory(cachedir)
self.https_uiprops = PropertySheet(
cachedir,
data=lambda x: self.https_datadir_url + x,
datadir_url=self.https_datadir_url[:-1])
self._init_uiprops(self.https_uiprops)
def _init_uiprops(self, uiprops):
libuiprops = join(self.shared_dir(), 'data', 'uiprops.py')
uiprops.load(libuiprops)
for path in reversed([self.apphome] + self.cubes_path()):
self._load_ui_properties_file(uiprops, path)
self._load_ui_properties_file(uiprops, self.apphome)
datadir_url = uiprops.context['datadir_url']
# pre 3.9 css compat, however the old css still rules
if self['use-old-css']:
if (datadir_url+'/cubicweb.css') in uiprops['STYLESHEETS']:
idx = uiprops['STYLESHEETS'].index(datadir_url+'/cubicweb.css')
uiprops['STYLESHEETS'][idx] = datadir_url+'/cubicweb.old.css'
if datadir_url+'/cubicweb.reset.css' in uiprops['STYLESHEETS']:
uiprops['STYLESHEETS'].remove(datadir_url+'/cubicweb.reset.css')
cubicweb_js_url = datadir_url + '/cubicweb.js'
if cubicweb_js_url not in uiprops['JAVASCRIPTS']:
uiprops['JAVASCRIPTS'].insert(0, cubicweb_js_url)
def _load_ui_properties_file(self, uiprops, path):
uipropsfile = join(path, 'uiprops.py')
if exists(uipropsfile):
self.debug('loading %s', uipropsfile)
uiprops.load(uipropsfile)
# 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)
if not isdir(staticdir) and 'w' in mode:
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))
@deprecated('[3.9] use _cw.uiprops.get(rid)')
def has_resource(self, rid):
"""return true if an external resource is defined"""
return bool(self.uiprops.get(rid))