author | Adrien Di Mascio <Adrien.DiMascio@logilab.fr> |
Wed, 23 Sep 2009 11:13:39 +0200 | |
changeset 3408 | c92170fca813 |
parent 2887 | 1282dc6525c5 |
child 4224 | 5998df006968 |
permissions | -rw-r--r-- |
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"""CubicWeb web client application object |
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:organization: Logilab |
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:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2. |
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr |
1977
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:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses |
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""" |
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__docformat__ = "restructuredtext en" |
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import sys |
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from time import clock, time |
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R [all] logilab.common 0.44 provides only deprecated
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from logilab.common.deprecation import deprecated |
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from rql import BadRQLQuery |
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from cubicweb import set_log_methods, cwvreg |
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from cubicweb import ( |
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parents:
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ValidationError, Unauthorized, AuthenticationError, NoSelectableObject, |
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RepositoryError, CW_EVENT_MANAGER) |
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from cubicweb.web import LOGGER, component |
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from cubicweb.web import ( |
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StatusResponse, DirectResponse, Redirect, NotFound, |
2293 | 24 |
RemoteCallFailed, ExplicitLogin, InvalidSession, RequestError) |
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|
26 |
# make session manager available through a global variable so the debug view can |
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27 |
# print information about web session |
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28 |
SESSION_MANAGER = None |
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29 |
||
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class AbstractSessionManager(component.Component): |
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"""manage session data associated to a session identifier""" |
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__regid__ = 'sessionmanager' |
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def __init__(self, vreg): |
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self.session_time = vreg.config['http-session-time'] or None |
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assert self.session_time is None or self.session_time > 0 |
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self.cleanup_session_time = vreg.config['cleanup-session-time'] or 43200 |
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assert self.cleanup_session_time > 0 |
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self.cleanup_anon_session_time = vreg.config['cleanup-anonymous-session-time'] or 120 |
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assert self.cleanup_anon_session_time > 0 |
41 |
if self.session_time: |
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assert self.cleanup_session_time < self.session_time |
|
43 |
assert self.cleanup_anon_session_time < self.session_time |
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self.authmanager = vreg['components'].select('authmanager', vreg=vreg) |
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|
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def clean_sessions(self): |
47 |
"""cleanup sessions which has not been unused since a given amount of |
|
48 |
time. Return the number of sessions which have been closed. |
|
49 |
""" |
|
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self.debug('cleaning http sessions') |
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51 |
closed, total = 0, 0 |
|
52 |
for session in self.current_sessions(): |
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53 |
no_use_time = (time() - session.last_usage_time) |
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54 |
total += 1 |
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55 |
if session.anonymous_connection: |
|
56 |
if no_use_time >= self.cleanup_anon_session_time: |
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57 |
self.close_session(session) |
|
58 |
closed += 1 |
|
59 |
elif no_use_time >= self.cleanup_session_time: |
|
60 |
self.close_session(session) |
|
61 |
closed += 1 |
|
62 |
return closed, total - closed |
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1426 | 63 |
|
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def has_expired(self, session): |
65 |
"""return True if the web session associated to the session is expired |
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66 |
""" |
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67 |
return not (self.session_time is None or |
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68 |
time() < session.last_usage_time + self.session_time) |
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1426 | 69 |
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def current_sessions(self): |
71 |
"""return currently open sessions""" |
|
72 |
raise NotImplementedError() |
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def get_session(self, req, sessionid): |
75 |
"""return existing session for the given session identifier""" |
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76 |
raise NotImplementedError() |
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77 |
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78 |
def open_session(self, req): |
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79 |
"""open and return a new session for the given request |
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:raise ExplicitLogin: if authentication is required |
82 |
""" |
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83 |
raise NotImplementedError() |
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|
0 | 85 |
def close_session(self, session): |
86 |
"""close session on logout or on invalid session detected (expired out, |
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corrupted...) |
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""" |
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raise NotImplementedError() |
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class AbstractAuthenticationManager(component.Component): |
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"""authenticate user associated to a request and check session validity""" |
94 |
id = 'authmanager' |
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vreg = None # XXX necessary until property for deprecation warning is on appobject |
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|
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def __init__(self, vreg): |
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self.vreg = vreg |
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def authenticate(self, req): |
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"""authenticate user and return corresponding user object |
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:raise ExplicitLogin: if authentication is required (no authentication |
104 |
info found or wrong user/password) |
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""" |
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raise NotImplementedError() |
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class CookieSessionHandler(object): |
110 |
"""a session handler using a cookie to store the session identifier |
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111 |
||
112 |
:cvar SESSION_VAR: |
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string giving the name of the variable used to store the session |
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114 |
identifier |
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""" |
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SESSION_VAR = '__session' |
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def __init__(self, appli): |
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self.vreg = appli.vreg |
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self.session_manager = self.vreg['components'].select('sessionmanager', |
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vreg=self.vreg) |
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global SESSION_MANAGER |
123 |
SESSION_MANAGER = self.session_manager |
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if not 'last_login_time' in self.vreg.schema: |
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self._update_last_login_time = lambda x: None |
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CW_EVENT_MANAGER.bind('after-registry-reload', self.reset_session_manager) |
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def reset_session_manager(self): |
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data = self.session_manager.dump_data() |
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self.session_manager = self.vreg['components'].select('sessionmanager', |
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vreg=self.vreg) |
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self.session_manager.restore_data(data) |
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global SESSION_MANAGER |
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SESSION_MANAGER = self.session_manager |
0 | 135 |
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def clean_sessions(self): |
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"""cleanup sessions which has not been unused since a given amount of |
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time |
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""" |
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140 |
self.session_manager.clean_sessions() |
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1426 | 141 |
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0 | 142 |
def set_session(self, req): |
143 |
"""associate a session to the request |
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144 |
||
145 |
Session id is searched from : |
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146 |
- # form variable |
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- cookie |
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148 |
||
149 |
if no session id is found, open a new session for the connected user |
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or request authentification as needed |
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151 |
||
1426 | 152 |
:raise Redirect: if authentication has occured and succeed |
0 | 153 |
""" |
154 |
assert req.cnx is None # at this point no cnx should be set on the request |
|
155 |
cookie = req.get_cookie() |
|
156 |
try: |
|
157 |
sessionid = str(cookie[self.SESSION_VAR].value) |
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158 |
except KeyError: # no session cookie |
|
159 |
session = self.open_session(req) |
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160 |
else: |
|
161 |
try: |
|
162 |
session = self.get_session(req, sessionid) |
|
163 |
except InvalidSession: |
|
164 |
try: |
|
165 |
session = self.open_session(req) |
|
166 |
except ExplicitLogin: |
|
167 |
req.remove_cookie(cookie, self.SESSION_VAR) |
|
168 |
raise |
|
169 |
# remember last usage time for web session tracking |
|
170 |
session.last_usage_time = time() |
|
171 |
||
172 |
def get_session(self, req, sessionid): |
|
173 |
return self.session_manager.get_session(req, sessionid) |
|
1426 | 174 |
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0 | 175 |
def open_session(self, req): |
176 |
session = self.session_manager.open_session(req) |
|
177 |
cookie = req.get_cookie() |
|
178 |
cookie[self.SESSION_VAR] = session.sessionid |
|
179 |
req.set_cookie(cookie, self.SESSION_VAR, maxage=None) |
|
180 |
# remember last usage time for web session tracking |
|
181 |
session.last_usage_time = time() |
|
182 |
if not session.anonymous_connection: |
|
183 |
self._postlogin(req) |
|
184 |
return session |
|
185 |
||
186 |
def _update_last_login_time(self, req): |
|
187 |
try: |
|
188 |
req.execute('SET X last_login_time NOW WHERE X eid %(x)s', |
|
189 |
{'x' : req.user.eid}, 'x') |
|
190 |
req.cnx.commit() |
|
191 |
except (RepositoryError, Unauthorized): |
|
192 |
# ldap user are not writeable for instance |
|
193 |
req.cnx.rollback() |
|
194 |
except: |
|
195 |
req.cnx.rollback() |
|
196 |
raise |
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1426 | 197 |
|
0 | 198 |
def _postlogin(self, req): |
199 |
"""postlogin: the user has been authenticated, redirect to the original |
|
200 |
page (index by default) with a welcome message |
|
201 |
""" |
|
202 |
# Update last connection date |
|
203 |
# XXX: this should be in a post login hook in the repository, but there |
|
204 |
# we can't differentiate actual login of automatic session |
|
205 |
# reopening. Is it actually a problem? |
|
206 |
self._update_last_login_time(req) |
|
207 |
args = req.form |
|
208 |
args['__message'] = req._('welcome %s !') % req.user.login |
|
209 |
if 'vid' in req.form: |
|
210 |
args['vid'] = req.form['vid'] |
|
211 |
if 'rql' in req.form: |
|
212 |
args['rql'] = req.form['rql'] |
|
213 |
path = req.relative_path(False) |
|
214 |
if path == 'login': |
|
215 |
path = 'view' |
|
216 |
raise Redirect(req.build_url(path, **args)) |
|
1426 | 217 |
|
0 | 218 |
def logout(self, req): |
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"""logout from the instance by cleaning the session and raising |
0 | 220 |
`AuthenticationError` |
221 |
""" |
|
222 |
self.session_manager.close_session(req.cnx) |
|
223 |
req.remove_cookie(req.get_cookie(), self.SESSION_VAR) |
|
224 |
raise AuthenticationError() |
|
225 |
||
226 |
||
227 |
class CubicWebPublisher(object): |
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"""the publisher is a singleton hold by the web frontend, and is responsible |
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229 |
to publish HTTP request. |
0 | 230 |
""" |
1426 | 231 |
|
0 | 232 |
def __init__(self, config, debug=None, |
233 |
session_handler_fact=CookieSessionHandler, |
|
234 |
vreg=None): |
|
235 |
super(CubicWebPublisher, self).__init__() |
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236 |
# connect to the repository and get instance's schema |
0 | 237 |
if vreg is None: |
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238 |
vreg = cwvreg.CubicWebVRegistry(config, debug=debug) |
0 | 239 |
self.vreg = vreg |
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240 |
self.info('starting web instance from %s', config.apphome) |
0 | 241 |
self.repo = config.repository(vreg) |
242 |
if not vreg.initialized: |
|
243 |
self.config.init_cubes(self.repo.get_cubes()) |
|
244 |
vreg.init_properties(self.repo.properties()) |
|
245 |
vreg.set_schema(self.repo.get_schema()) |
|
246 |
# set the correct publish method |
|
247 |
if config['query-log-file']: |
|
248 |
from threading import Lock |
|
249 |
self._query_log = open(config['query-log-file'], 'a') |
|
250 |
self.publish = self.log_publish |
|
1426 | 251 |
self._logfile_lock = Lock() |
0 | 252 |
else: |
253 |
self._query_log = None |
|
254 |
self.publish = self.main_publish |
|
255 |
# instantiate session and url resolving helpers |
|
256 |
self.session_handler = session_handler_fact(self) |
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257 |
self.set_urlresolver() |
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CW_EVENT_MANAGER.bind('after-registry-reload', self.set_urlresolver) |
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260 |
def set_urlresolver(self): |
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261 |
self.url_resolver = self.vreg['components'].select('urlpublisher', |
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262 |
vreg=self.vreg) |
1426 | 263 |
|
0 | 264 |
def connect(self, req): |
265 |
"""return a connection for a logged user object according to existing |
|
266 |
sessions (i.e. a new connection may be created or an already existing |
|
267 |
one may be reused |
|
268 |
""" |
|
269 |
self.session_handler.set_session(req) |
|
270 |
||
271 |
# publish methods ######################################################### |
|
1426 | 272 |
|
0 | 273 |
def log_publish(self, path, req): |
274 |
"""wrapper around _publish to log all queries executed for a given |
|
275 |
accessed path |
|
276 |
""" |
|
277 |
try: |
|
278 |
return self.main_publish(path, req) |
|
279 |
finally: |
|
280 |
cnx = req.cnx |
|
281 |
self._logfile_lock.acquire() |
|
282 |
try: |
|
283 |
try: |
|
284 |
result = ['\n'+'*'*80] |
|
285 |
result.append(req.url()) |
|
286 |
result += ['%s %s -- (%.3f sec, %.3f CPU sec)' % q for q in cnx.executed_queries] |
|
287 |
cnx.executed_queries = [] |
|
288 |
self._query_log.write('\n'.join(result).encode(req.encoding)) |
|
289 |
self._query_log.flush() |
|
290 |
except Exception: |
|
291 |
self.exception('error while logging queries') |
|
292 |
finally: |
|
293 |
self._logfile_lock.release() |
|
294 |
||
2788
8d3dbe577d3a
R put version info in deprecation warnings
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents:
2706
diff
changeset
|
295 |
@deprecated("[3.4] use vreg['controllers'].select(...)") |
2058
7ef12c03447c
nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1977
diff
changeset
|
296 |
def select_controller(self, oid, req): |
7ef12c03447c
nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1977
diff
changeset
|
297 |
try: |
2650
18aec79ec3a3
R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2613
diff
changeset
|
298 |
return self.vreg['controllers'].select(oid, req=req, appli=self) |
2058
7ef12c03447c
nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1977
diff
changeset
|
299 |
except NoSelectableObject: |
7ef12c03447c
nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1977
diff
changeset
|
300 |
raise Unauthorized(req._('not authorized')) |
7ef12c03447c
nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1977
diff
changeset
|
301 |
|
0 | 302 |
def main_publish(self, path, req): |
303 |
"""method called by the main publisher to process <path> |
|
1426 | 304 |
|
0 | 305 |
should return a string containing the resulting page or raise a |
306 |
`NotFound` exception |
|
307 |
||
308 |
:type path: str |
|
309 |
:param path: the path part of the url to publish |
|
1426 | 310 |
|
0 | 311 |
:type req: `web.Request` |
312 |
:param req: the request object |
|
313 |
||
314 |
:rtype: str |
|
315 |
:return: the result of the pusblished url |
|
316 |
""" |
|
317 |
path = path or 'view' |
|
318 |
# don't log form values they may contains sensitive information |
|
319 |
self.info('publish "%s" (form params: %s)', path, req.form.keys()) |
|
320 |
# remove user callbacks on a new request (except for json controllers |
|
321 |
# to avoid callbacks being unregistered before they could be called) |
|
322 |
tstart = clock() |
|
323 |
try: |
|
324 |
try: |
|
325 |
ctrlid, rset = self.url_resolver.process(req, path) |
|
2058
7ef12c03447c
nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1977
diff
changeset
|
326 |
try: |
2650
18aec79ec3a3
R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2613
diff
changeset
|
327 |
controller = self.vreg['controllers'].select(ctrlid, req, |
18aec79ec3a3
R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2613
diff
changeset
|
328 |
appli=self) |
2058
7ef12c03447c
nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1977
diff
changeset
|
329 |
except NoSelectableObject: |
7ef12c03447c
nicer vreg api, try to make rset an optional named argument in select and derivated (including selectors)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
1977
diff
changeset
|
330 |
raise Unauthorized(req._('not authorized')) |
581
09f87f2c535e
update_search_state in the publisher since it should be done whatever the controller
sylvain.thenault@logilab.fr
parents:
168
diff
changeset
|
331 |
req.update_search_state() |
0 | 332 |
result = controller.publish(rset=rset) |
333 |
if req.cnx is not None: |
|
334 |
# req.cnx is None if anonymous aren't allowed and we are |
|
335 |
# displaying the cookie authentication form |
|
336 |
req.cnx.commit() |
|
337 |
except (StatusResponse, DirectResponse): |
|
338 |
req.cnx.commit() |
|
339 |
raise |
|
340 |
except Redirect: |
|
341 |
# redirect is raised by edit controller when everything went fine, |
|
342 |
# so try to commit |
|
343 |
try: |
|
344 |
req.cnx.commit() |
|
345 |
except ValidationError, ex: |
|
346 |
self.validation_error_handler(req, ex) |
|
347 |
except Unauthorized, ex: |
|
348 |
req.data['errmsg'] = req._('You\'re not authorized to access this page. ' |
|
349 |
'If you think you should, please contact the site administrator.') |
|
350 |
self.error_handler(req, ex, tb=False) |
|
351 |
except Exception, ex: |
|
352 |
self.error_handler(req, ex, tb=True) |
|
353 |
else: |
|
354 |
# delete validation errors which may have been previously set |
|
355 |
if '__errorurl' in req.form: |
|
356 |
req.del_session_data(req.form['__errorurl']) |
|
357 |
raise |
|
358 |
except (AuthenticationError, NotFound, RemoteCallFailed): |
|
359 |
raise |
|
360 |
except ValidationError, ex: |
|
361 |
self.validation_error_handler(req, ex) |
|
2272
f27a3a75be0d
no tb for RequestError
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2263
diff
changeset
|
362 |
except (Unauthorized, BadRQLQuery, RequestError), ex: |
0 | 363 |
self.error_handler(req, ex, tb=False) |
364 |
except Exception, ex: |
|
365 |
self.error_handler(req, ex, tb=True) |
|
366 |
finally: |
|
367 |
if req.cnx is not None: |
|
368 |
try: |
|
369 |
req.cnx.rollback() |
|
370 |
except: |
|
371 |
pass # ignore rollback error at this point |
|
372 |
self.info('query %s executed in %s sec', req.relative_path(), clock() - tstart) |
|
373 |
return result |
|
374 |
||
375 |
def validation_error_handler(self, req, ex): |
|
376 |
ex.errors = dict((k, v) for k, v in ex.errors.items()) |
|
377 |
if '__errorurl' in req.form: |
|
378 |
forminfo = {'errors': ex, |
|
379 |
'values': req.form, |
|
380 |
'eidmap': req.data.get('eidmap', {}) |
|
381 |
} |
|
382 |
req.set_session_data(req.form['__errorurl'], forminfo) |
|
383 |
raise Redirect(req.form['__errorurl']) |
|
384 |
self.error_handler(req, ex, tb=False) |
|
1426 | 385 |
|
0 | 386 |
def error_handler(self, req, ex, tb=False): |
387 |
excinfo = sys.exc_info() |
|
388 |
self.exception(repr(ex)) |
|
389 |
req.set_header('Cache-Control', 'no-cache') |
|
390 |
req.remove_header('Etag') |
|
391 |
req.message = None |
|
392 |
req.reset_headers() |
|
393 |
try: |
|
394 |
req.data['ex'] = ex |
|
395 |
if tb: |
|
396 |
req.data['excinfo'] = excinfo |
|
397 |
req.form['vid'] = 'error' |
|
2650
18aec79ec3a3
R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2613
diff
changeset
|
398 |
errview = self.vreg['views'].select('error', req) |
882
75488a2a875e
fix ui.main-template property handling
sylvain.thenault@logilab.fr
parents:
871
diff
changeset
|
399 |
template = self.main_template_id(req) |
2650
18aec79ec3a3
R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2613
diff
changeset
|
400 |
content = self.vreg['views'].main_template(req, template, view=errview) |
0 | 401 |
except: |
2650
18aec79ec3a3
R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2613
diff
changeset
|
402 |
content = self.vreg['views'].main_template(req, 'error-template') |
0 | 403 |
raise StatusResponse(500, content) |
1426 | 404 |
|
0 | 405 |
def need_login_content(self, req): |
2650
18aec79ec3a3
R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2613
diff
changeset
|
406 |
return self.vreg['views'].main_template(req, 'login') |
1426 | 407 |
|
0 | 408 |
def loggedout_content(self, req): |
2650
18aec79ec3a3
R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2613
diff
changeset
|
409 |
return self.vreg['views'].main_template(req, 'loggedout') |
1426 | 410 |
|
0 | 411 |
def notfound_content(self, req): |
412 |
req.form['vid'] = '404' |
|
2650
18aec79ec3a3
R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2613
diff
changeset
|
413 |
view = self.vreg['views'].select('404', req) |
882
75488a2a875e
fix ui.main-template property handling
sylvain.thenault@logilab.fr
parents:
871
diff
changeset
|
414 |
template = self.main_template_id(req) |
2650
18aec79ec3a3
R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2613
diff
changeset
|
415 |
return self.vreg['views'].main_template(req, template, view=view) |
0 | 416 |
|
882
75488a2a875e
fix ui.main-template property handling
sylvain.thenault@logilab.fr
parents:
871
diff
changeset
|
417 |
def main_template_id(self, req): |
2263
1f59cd5b710f
accept a __template parameter that specifies a different (main) template
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents:
1977
diff
changeset
|
418 |
template = req.form.get('__template', req.property_value('ui.main-template')) |
2650
18aec79ec3a3
R [vreg] important refactoring of the vregistry, moving behaviour to end dictionnary (and so leaving room for more flexibility ; keep bw compat ; update api usage in cw
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
2613
diff
changeset
|
419 |
if template not in self.vreg['views']: |
882
75488a2a875e
fix ui.main-template property handling
sylvain.thenault@logilab.fr
parents:
871
diff
changeset
|
420 |
template = 'main-template' |
75488a2a875e
fix ui.main-template property handling
sylvain.thenault@logilab.fr
parents:
871
diff
changeset
|
421 |
return template |
1426 | 422 |
|
0 | 423 |
|
424 |
set_log_methods(CubicWebPublisher, LOGGER) |
|
425 |
set_log_methods(CookieSessionHandler, LOGGER) |