Viewing file:  guarded2.py (3.12 KB) -rw-r--r--
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from zope.interface import implements
from twisted.cred import portal, checkers, credentials
from nevow import inevow, rend, tags, guard, loaders
class MyPage(rend.Page):
addSlash = True
docFactory = loaders.stan(
tags.html[
tags.head[tags.title["Hi Boy"]],
tags.body[
tags.invisible(render=tags.directive("isLogged"))[
tags.div(pattern="False")[
tags.form(action=guard.LOGIN_AVATAR, method='post')[
tags.table[
tags.tr[
tags.td[ "Username:" ],
tags.td[ tags.input(type='text',name='username') ],
],
tags.tr[
tags.td[ "Password:" ],
tags.td[ tags.input(type='password',name='password') ],
]
],
tags.input(type='submit'),
tags.p,
]
],
tags.invisible(pattern="True")[
tags.h3["Hi bro"],
tags.invisible(render=tags.directive("sessionId")),
tags.br,
tags.a(href=guard.LOGOUT_AVATAR)["Logout"]
]
]
]
])
def __init__(self, avatarId=None):
rend.Page.__init__(self)
self.avatarId=avatarId
def render_isLogged(self, context, data):
q = inevow.IQ(context)
true_pattern = q.onePattern('True')
false_pattern = q.onePattern('False')
if self.avatarId: return true_pattern or context.tag().clear()
else: return false_pattern or context.tag().clear()
def render_sessionId(self, context, data):
sess = inevow.ISession(context)
return context.tag[sess.uid]
def logout(self):
print "Bye"
### Authentication
def noLogout():
return None
class MyRealm:
"""A simple implementor of cred's IRealm.
For web, this gives us the LoggedIn page.
"""
implements(portal.IRealm)
def requestAvatar(self, avatarId, mind, *interfaces):
for iface in interfaces:
if iface is inevow.IResource:
# do web stuff
if avatarId is checkers.ANONYMOUS:
resc = MyPage()
resc.realm = self
return (inevow.IResource, resc, noLogout)
else:
resc = MyPage(avatarId)
resc.realm = self
return (inevow.IResource, resc, resc.logout)
raise NotImplementedError("Can't support that interface.")
### Application setup
def createResource():
realm = MyRealm()
porta = portal.Portal(realm)
myChecker = checkers.InMemoryUsernamePasswordDatabaseDontUse()
myChecker.addUser("user","password")
myChecker.addUser("fred", "flintstone")
porta.registerChecker(checkers.AllowAnonymousAccess(), credentials.IAnonymous)
porta.registerChecker(myChecker)
res = guard.SessionWrapper(porta)
return res
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