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# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.
from __future__ import nested_scopes
import gtk
from twisted import copyright
from twisted.internet import defer
from twisted.python import failure, log, util
from twisted.spread import pb
from twisted.cred.credentials import UsernamePassword
from twisted.internet import error as netError
def login(client=None, **defaults):
"""
@param host:
@param port:
@param identityName:
@param password:
@param serviceName:
@param perspectiveName:
@returntype: Deferred RemoteReference of Perspective
"""
d = defer.Deferred()
LoginDialog(client, d, defaults)
return d
class GladeKeeper:
"""
@cvar gladefile: The file in which the glade GUI definition is kept.
@type gladefile: str
@cvar _widgets: Widgets that should be attached to me as attributes.
@type _widgets: list of strings
"""
gladefile = None
_widgets = ()
def __init__(self):
from gtk import glade
self.glade = glade.XML(self.gladefile)
# mold can go away when we get a newer pygtk (post 1.99.14)
mold = {}
for k in dir(self):
mold[k] = getattr(self, k)
self.glade.signal_autoconnect(mold)
self._setWidgets()
def _setWidgets(self):
get_widget = self.glade.get_widget
for widgetName in self._widgets:
setattr(self, "_" + widgetName, get_widget(widgetName))
class LoginDialog(GladeKeeper):
# IdentityConnector host port identityName password
# requestLogin -> identityWrapper or login failure
# requestService serviceName perspectiveName client
# window killed
# cancel button pressed
# login button activated
fields = ['host','port','identityName','password',
'perspectiveName']
_widgets = ("hostEntry", "portEntry", "identityNameEntry", "passwordEntry",
"perspectiveNameEntry", "statusBar",
"loginDialog")
_advancedControls = ['perspectiveLabel', 'perspectiveNameEntry',
'protocolLabel', 'versionLabel']
gladefile = util.sibpath(__file__, "login2.glade")
_timeoutID = None
def __init__(self, client, deferred, defaults):
self.client = client
self.deferredResult = deferred
GladeKeeper.__init__(self)
self.setDefaults(defaults)
self._loginDialog.show()
def setDefaults(self, defaults):
if not defaults.has_key('port'):
defaults['port'] = str(pb.portno)
elif isinstance(defaults['port'], (int, long)):
defaults['port'] = str(defaults['port'])
for k, v in defaults.iteritems():
if k in self.fields:
widget = getattr(self, "_%sEntry" % (k,))
widget.set_text(v)
def _setWidgets(self):
GladeKeeper._setWidgets(self)
self._statusContext = self._statusBar.get_context_id("Login dialog.")
get_widget = self.glade.get_widget
get_widget("versionLabel").set_text(copyright.longversion)
get_widget("protocolLabel").set_text("Protocol PB-%s" %
(pb.Broker.version,))
def _on_loginDialog_response(self, widget, response):
handlers = {gtk.RESPONSE_NONE: self._windowClosed,
gtk.RESPONSE_DELETE_EVENT: self._windowClosed,
gtk.RESPONSE_OK: self._doLogin,
gtk.RESPONSE_CANCEL: self._cancelled}
handler = handlers.get(response)
if handler is not None:
handler()
else:
log.msg("Unexpected dialog response %r from %s" % (response,
widget))
def _on_loginDialog_close(self, widget, userdata=None):
self._windowClosed()
def _on_loginDialog_destroy_event(self, widget, userdata=None):
self._windowClosed()
def _cancelled(self):
if not self.deferredResult.called:
self.deferredResult.errback(netError.UserError("User hit Cancel."))
self._loginDialog.destroy()
def _windowClosed(self, reason=None):
if not self.deferredResult.called:
self.deferredResult.errback(netError.UserError("Window closed."))
def _doLogin(self):
idParams = {}
idParams['host'] = self._hostEntry.get_text()
idParams['port'] = self._portEntry.get_text()
idParams['identityName'] = self._identityNameEntry.get_text()
idParams['password'] = self._passwordEntry.get_text()
try:
idParams['port'] = int(idParams['port'])
except ValueError:
pass
f = pb.PBClientFactory()
from twisted.internet import reactor
reactor.connectTCP(idParams['host'], idParams['port'], f)
creds = UsernamePassword(idParams['identityName'], idParams['password'])
d = f.login(creds, self.client)
def _timeoutLogin():
self._timeoutID = None
d.errback(failure.Failure(defer.TimeoutError("Login timed out.")))
self._timeoutID = reactor.callLater(30, _timeoutLogin)
d.addCallbacks(self._cbGotPerspective, self._ebFailedLogin)
self.statusMsg("Contacting server...")
# serviceName = self._serviceNameEntry.get_text()
# perspectiveName = self._perspectiveNameEntry.get_text()
# if not perspectiveName:
# perspectiveName = idParams['identityName']
# d = _identityConnector.requestService(serviceName, perspectiveName,
# self.client)
# d.addCallbacks(self._cbGotPerspective, self._ebFailedLogin)
# setCursor to waiting
def _cbGotPerspective(self, perspective):
self.statusMsg("Connected to server.")
if self._timeoutID is not None:
self._timeoutID.cancel()
self._timeoutID = None
self.deferredResult.callback(perspective)
# clear waiting cursor
self._loginDialog.destroy()
def _ebFailedLogin(self, reason):
if isinstance(reason, failure.Failure):
reason = reason.value
self.statusMsg(reason)
if isinstance(reason, (unicode, str)):
text = reason
else:
text = unicode(reason)
msg = gtk.MessageDialog(self._loginDialog,
gtk.DIALOG_DESTROY_WITH_PARENT,
gtk.MESSAGE_ERROR,
gtk.BUTTONS_CLOSE,
text)
msg.show_all()
msg.connect("response", lambda *a: msg.destroy())
# hostname not found
# host unreachable
# connection refused
# authentication failed
# no such service
# no such perspective
# internal server error
def _on_advancedButton_toggled(self, widget, userdata=None):
active = widget.get_active()
if active:
op = "show"
else:
op = "hide"
for widgetName in self._advancedControls:
widget = self.glade.get_widget(widgetName)
getattr(widget, op)()
def statusMsg(self, text):
if not isinstance(text, (unicode, str)):
text = unicode(text)
return self._statusBar.push(self._statusContext, text)
