# -*- coding: utf-8 -*-
"""Set of base controllers, which are directly plugged into the application
object to handle publication.
:organization: Logilab
:copyright: 2001-2008 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
"""
__docformat__ = "restructuredtext en"
from smtplib import SMTP
import simplejson
from mx.DateTime.Parser import DateFromString
from logilab.common.decorators import cached
from cubicweb import NoSelectableObject, ValidationError, typed_eid
from cubicweb.common.selectors import yes
from cubicweb.common.mail import format_mail
from cubicweb.common.view import STRICT_DOCTYPE, CW_XHTML_EXTENSIONS
from cubicweb.web import ExplicitLogin, Redirect, RemoteCallFailed
from cubicweb.web.controller import Controller
from cubicweb.web.views import vid_from_rset
try:
from cubicweb.web.facet import (FilterRQLBuilder, get_facet,
prepare_facets_rqlst)
HAS_SEARCH_RESTRICTION = True
except ImportError: # gae
HAS_SEARCH_RESTRICTION = False
class LoginController(Controller):
id = 'login'
def publish(self, rset=None):
"""log in the application"""
if self.config['auth-mode'] == 'http':
# HTTP authentication
raise ExplicitLogin()
else:
# Cookie authentication
return self.appli.need_login_content(self.req)
class LogoutController(Controller):
id = 'logout'
def publish(self, rset=None):
"""logout from the application"""
return self.appli.session_handler.logout(self.req)
class ViewController(Controller):
id = 'view'
template = 'main'
def publish(self, rset=None):
"""publish a request, returning an encoded string"""
self.req.update_search_state()
template = self.req.property_value('ui.main-template')
if template not in self.vreg.registry('templates') :
template = self.template
return self.vreg.main_template(self.req, template, rset=rset)
def execute_linkto(self, eid=None):
"""XXX __linkto parameter may cause security issue
defined here since custom application controller inheriting from this
one use this method?
"""
req = self.req
if not '__linkto' in req.form:
return
if eid is None:
eid = typed_eid(req.form['eid'])
for linkto in req.list_form_param('__linkto', pop=True):
rtype, eids, target = linkto.split(':')
assert target in ('subject', 'object')
eids = eids.split('_')
if target == 'subject':
rql = 'SET X %s Y WHERE X eid %%(x)s, Y eid %%(y)s' % rtype
else:
rql = 'SET Y %s X WHERE X eid %%(x)s, Y eid %%(y)s' % rtype
for teid in eids:
req.execute(rql, {'x': eid, 'y': typed_eid(teid)}, ('x', 'y'))
class FormValidatorController(Controller):
id = 'validateform'
def publish(self, rset=None):
vreg = self.vreg
try:
ctrl = vreg.select(vreg.registry_objects('controllers', 'edit'),
req=self.req, appli=self.appli)
except NoSelectableObject:
status, args = (False, {None: self.req._('not authorized')})
else:
try:
ctrl.publish(None, fromjson=True)
except ValidationError, err:
status, args = self.validation_error(err)
except Redirect, err:
try:
self.req.cnx.commit() # ValidationError may be raise on commit
except ValidationError, err:
status, args = self.validation_error(err)
else:
status, args = (True, err.location)
except Exception, err:
self.req.cnx.rollback()
self.exception('unexpected error in validateform')
try:
status, args = (False, self.req._(unicode(err)))
except UnicodeError:
status, args = (False, repr(err))
else:
status, args = (False, '???')
self.req.set_content_type('text/html')
jsarg = simplejson.dumps( (status, args) )
return """<script type="text/javascript">
window.parent.handleFormValidationResponse('entityForm', null, %s);
</script>""" % simplejson.dumps( (status, args) )
def validation_error(self, err):
self.req.cnx.rollback()
try:
eid = err.entity.eid
except AttributeError:
eid = err.entity
return (False, (eid, err.errors))
def xmlize(source):
head = u'<?xml version="1.0"?>\n' + STRICT_DOCTYPE % CW_XHTML_EXTENSIONS
return head + u'<div xmlns="http://www.w3.org/1999/xhtml" xmlns:cubicweb="http://www.logilab.org/2008/cubicweb">%s</div>' % source.strip()
def jsonize(func):
"""sets correct content_type and calls `simplejson.dumps` on results
"""
def wrapper(self, *args, **kwargs):
self.req.set_content_type('application/json')
result = func(self, *args, **kwargs)
return simplejson.dumps(result)
return wrapper
def check_pageid(func):
"""decorator which checks the given pageid is found in the
user's session data
"""
def wrapper(self, *args, **kwargs):
data = self.req.get_session_data(self.req.pageid)
if data is None:
raise RemoteCallFailed(self.req._('pageid-not-found'))
return func(self, *args, **kwargs)
return wrapper
class JSonController(Controller):
id = 'json'
template = 'main'
def publish(self, rset=None):
mode = self.req.form.get('mode', 'html')
self.req.pageid = self.req.form.get('pageid')
try:
func = getattr(self, '%s_exec' % mode)
except AttributeError, ex:
self.error('json controller got an unknown mode %r', mode)
self.error('\t%s', ex)
result = u''
else:
try:
result = func(rset)
except RemoteCallFailed:
raise
except Exception, ex:
self.exception('an exception occured on json request(rset=%s): %s',
rset, ex)
raise RemoteCallFailed(repr(ex))
return result.encode(self.req.encoding)
def _exec(self, rql, args=None, eidkey=None, rocheck=True):
"""json mode: execute RQL and return resultset as json"""
if rocheck:
self.ensure_ro_rql(rql)
try:
return self.req.execute(rql, args, eidkey)
except Exception, ex:
self.exception("error in _exec(rql=%s): %s", rql, ex)
return None
return None
@jsonize
def json_exec(self, rset=None):
"""json mode: execute RQL and return resultset as json"""
rql = self.req.form.get('rql')
if rset is None and rql:
rset = self._exec(rql)
return rset and rset.rows or []
def _set_content_type(self, vobj, data):
"""sets req's content type according to vobj's content type
(and xmlize data if needed)
"""
content_type = vobj.content_type
if content_type == 'application/xhtml+xml':
self.req.set_content_type(content_type)
return xmlize(data)
return data
def html_exec(self, rset=None):
"""html mode: execute query and return the view as HTML"""
req = self.req
rql = req.form.get('rql')
if rset is None and rql:
rset = self._exec(rql)
vid = req.form.get('vid') or vid_from_rset(req, rset, self.schema)
try:
view = self.vreg.select_view(vid, req, rset)
except NoSelectableObject:
vid = req.form.get('fallbackvid', 'noresult')
view = self.vreg.select_view(vid, req, rset)
divid = req.form.get('divid', 'pageContent')
# we need to call pagination before with the stream set
stream = view.set_stream()
if req.form.get('paginate'):
if divid == 'pageContent':
# mimick main template behaviour
stream.write(u'<div id="pageContent">')
vtitle = self.req.form.get('vtitle')
if vtitle:
w(u'<h1 class="vtitle">%s</h1>\n' % vtitle)
view.pagination(req, rset, view.w, not view.need_navigation)
if divid == 'pageContent':
stream.write(u'<div id="contentmain">')
view.dispatch()
if req.form.get('paginate') and divid == 'pageContent':
stream.write(u'</div></div>')
source = stream.getvalue()
return self._set_content_type(view, source)
def rawremote_exec(self, rset=None):
"""like remote_exec but doesn't change content type"""
# no <arg> attribute means the callback takes no argument
args = self.req.form.get('arg', ())
if not isinstance(args, (list, tuple)):
args = (args,)
fname = self.req.form['fname']
args = [simplejson.loads(arg) for arg in args]
try:
func = getattr(self, 'js_%s' % fname)
except AttributeError:
self.exception('rawremote_exec fname=%s', fname)
return u""
return func(*args)
remote_exec = jsonize(rawremote_exec)
def _rebuild_posted_form(self, names, values, action=None):
form = {}
for name, value in zip(names, values):
# remove possible __action_xxx inputs
if name.startswith('__action'):
continue
# form.setdefault(name, []).append(value)
if name in form:
curvalue = form[name]
if isinstance(curvalue, list):
curvalue.append(value)
else:
form[name] = [curvalue, value]
else:
form[name] = value
# simulate click on __action_%s button to help the controller
if action:
form['__action_%s' % action] = u'whatever'
return form
def js_validate_form(self, action, names, values):
# XXX this method (and correspoding js calls) should use the new
# `RemoteCallFailed` mechansim
self.req.form = self._rebuild_posted_form(names, values, action)
vreg = self.vreg
try:
ctrl = vreg.select(vreg.registry_objects('controllers', 'edit'),
req=self.req)
except NoSelectableObject:
return (False, {None: self.req._('not authorized')})
try:
ctrl.publish(None, fromjson=True)
except ValidationError, err:
self.req.cnx.rollback()
if not err.entity or isinstance(err.entity, (long, int)):
eid = err.entity
else:
eid = err.entity.eid
return (False, (eid, err.errors))
except Redirect, err:
return (True, err.location)
except Exception, err:
self.req.cnx.rollback()
self.exception('unexpected error in js_validateform')
return (False, self.req._(str(err)))
return (False, '???')
def js_edit_field(self, action, names, values, rtype, eid):
success, args = self.js_validate_form(action, names, values)
if success:
rset = self.req.execute('Any X,N WHERE X eid %%(x)s, X %s N' % rtype,
{'x': eid}, 'x')
entity = rset.get_entity(0, 0)
return (success, args, entity.printable_value(rtype))
else:
return (success, args, None)
def js_rql(self, rql):
rset = self._exec(rql)
return rset and rset.rows or []
def js_i18n(self, msgids):
"""returns the translation of `msgid`"""
return [self.req._(msgid) for msgid in msgids]
def js_format_date(self, strdate):
"""returns the formatted date for `msgid`"""
date = DateFromString(strdate)
return self.format_date(date)
def js_external_resource(self, resource):
"""returns the URL of the external resource named `resource`"""
return self.req.external_resource(resource)
def js_prop_widget(self, propkey, varname, tabindex=None):
"""specific method for EProperty handling"""
w = self.vreg.property_value_widget(propkey, req=self.req)
entity = self.vreg.etype_class('EProperty')(self.req, None, None)
entity.eid = varname
self.req.form['value'] = self.vreg.property_info(propkey)['default']
return w.edit_render(entity, tabindex, includehelp=True)
def js_component(self, compid, rql, registry='components', extraargs=None):
if rql:
rset = self._exec(rql)
else:
rset = None
comp = self.vreg.select_object(registry, compid, self.req, rset)
if extraargs is None:
extraargs = {}
else: # we receive unicode keys which is not supported by the **syntax
extraargs = dict((str(key), value)
for key, value in extraargs.items())
extraargs = extraargs or {}
print 'extraargs =', extraargs
return self._set_content_type(comp, comp.dispatch(**extraargs))
@check_pageid
def js_user_callback(self, cbname):
page_data = self.req.get_session_data(self.req.pageid, {})
try:
cb = page_data[cbname]
except KeyError:
return None
return cb(self.req)
def js_unregister_user_callback(self, cbname):
self.req.unregister_callback(self.req.pageid, cbname)
def js_unload_page_data(self):
self.req.del_session_data(self.req.pageid)
def js_cancel_edition(self, errorurl):
"""cancelling edition from javascript
We need to clear associated req's data :
- errorurl
- pending insertions / deletions
"""
self.req.cancel_edition(errorurl)
@check_pageid
def js_inline_creation_form(self, peid, ptype, ttype, rtype, role):
view = self.vreg.select_view('inline-creation', self.req, None,
etype=ttype, ptype=ptype, peid=peid,
rtype=rtype, role=role)
source = view.dispatch(etype=ttype, ptype=ptype, peid=peid, rtype=rtype,
role=role)
return self._set_content_type(view, source)
def js_remove_pending_insert(self, (eidfrom, rel, eidto)):
self._remove_pending(eidfrom, rel, eidto, 'insert')
def js_add_pending_insert(self, (eidfrom, rel, eidto)):
self._add_pending(eidfrom, rel, eidto, 'insert')
def js_add_pending_inserts(self, tripletlist):
for eidfrom, rel, eidto in tripletlist:
self._add_pending(eidfrom, rel, eidto, 'insert')
def js_remove_pending_delete(self, (eidfrom, rel, eidto)):
self._remove_pending(eidfrom, rel, eidto, 'delete')
def js_add_pending_delete(self, (eidfrom, rel, eidto)):
self._add_pending(eidfrom, rel, eidto, 'delete')
if HAS_SEARCH_RESTRICTION:
def js_filter_build_rql(self, names, values):
form = self._rebuild_posted_form(names, values)
self.req.form = form
builder = FilterRQLBuilder(self.req)
return builder.build_rql()
def js_filter_select_content(self, facetids, rql):
rqlst = self.vreg.parse(self.req, rql) # XXX Union unsupported yet
mainvar = prepare_facets_rqlst(rqlst)[0]
update_map = {}
for facetid in facetids:
facet = get_facet(self.req, facetid, rqlst.children[0], mainvar)
update_map[facetid] = facet.possible_values()
return update_map
def js_delete_bookmark(self, beid):
try:
rql = 'DELETE B bookmarked_by U WHERE B eid %(b)s, U eid %(u)s'
self.req.execute(rql, {'b': typed_eid(beid), 'u' : self.req.user.eid})
except Exception, ex:
self.exception(unicode(ex))
return self.req._('Problem occured')
def _add_pending(self, eidfrom, rel, eidto, kind):
key = 'pending_%s' % kind
pendings = self.req.get_session_data(key, set())
pendings.add( (typed_eid(eidfrom), rel, typed_eid(eidto)) )
self.req.set_session_data(key, pendings)
def _remove_pending(self, eidfrom, rel, eidto, kind):
key = 'pending_%s' % kind
try:
pendings = self.req.get_session_data(key)
pendings.remove( (typed_eid(eidfrom), rel, typed_eid(eidto)) )
except:
self.exception('while removing pending eids')
else:
self.req.set_session_data(key, pendings)
def js_add_and_link_new_entity(self, etype_to, rel, eid_to, etype_from, value_from):
# create a new entity
eid_from = self.req.execute('INSERT %s T : T name "%s"' % ( etype_from, value_from ))[0][0]
# link the new entity to the main entity
rql = 'SET F %(rel)s T WHERE F eid %(eid_to)s, T eid %(eid_from)s' % {'rel' : rel, 'eid_to' : eid_to, 'eid_from' : eid_from}
return eid_from
class SendMailController(Controller):
id = 'sendmail'
require_groups = ('managers', 'users')
def recipients(self):
"""returns an iterator on email's recipients as entities"""
eids = self.req.form['recipient']
# make sure we have a list even though only one recipient was specified
if isinstance(eids, basestring):
eids = (eids,)
rql = 'Any X WHERE X eid in (%s)' % (','.join(eids))
rset = self.req.execute(rql)
for entity in rset.entities():
entity.complete() # XXX really?
yield entity
@property
@cached
def smtp(self):
mailhost, port = self.config['smtp-host'], self.config['smtp-port']
try:
return SMTP(mailhost, port)
except Exception, ex:
self.exception("can't connect to smtp server %s:%s (%s)",
mailhost, port, ex)
url = self.build_url(__message=self.req._('could not connect to the SMTP server'))
raise Redirect(url)
def sendmail(self, recipient, subject, body):
helo_addr = '%s <%s>' % (self.config['sender-name'],
self.config['sender-addr'])
msg = format_mail({'email' : self.req.user.get_email(),
'name' : self.req.user.dc_title(),},
[recipient], body, subject)
self.smtp.sendmail(helo_addr, [recipient], msg.as_string())
def publish(self, rset=None):
# XXX this allow anybody with access to an cubicweb application to use it as a mail relay
body = self.req.form['mailbody']
subject = self.req.form['mailsubject']
for recipient in self.recipients():
text = body % recipient.as_email_context()
self.sendmail(recipient.get_email(), subject, text)
# breadcrumbs = self.req.get_session_data('breadcrumbs', None)
url = self.build_url(__message=self.req._('emails successfully sent'))
raise Redirect(url)
class MailBugReportController(SendMailController):
id = 'reportbug'
__selectors__ = (yes,)
def publish(self, rset=None):
body = self.req.form['description']
self.sendmail(self.config['submit-mail'], _('%s error report') % self.config.appid, body)
url = self.build_url(__message=self.req._('bug report sent'))
raise Redirect(url)