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Valentin Samir
django-cas-server
Commits
c6583c92
Commit
c6583c92
authored
Aug 01, 2016
by
Valentin Samir
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Support authentication renewal in federate mode
parent
ed3e382e
Changes
3
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Showing
3 changed files
with
100 additions
and
6 deletions
+100
-6
cas_server/federate.py
cas_server/federate.py
+2
-2
cas_server/tests/test_federate.py
cas_server/tests/test_federate.py
+74
-0
cas_server/views.py
cas_server/views.py
+24
-4
No files found.
cas_server/federate.py
View file @
c6583c92
...
...
@@ -42,13 +42,13 @@ class CASFederateValidateUser(object):
#: the identity provider
provider
=
None
def
__init__
(
self
,
provider
,
service_url
):
def
__init__
(
self
,
provider
,
service_url
,
renew
=
False
):
self
.
provider
=
provider
self
.
client
=
CASClient
(
service_url
=
service_url
,
version
=
provider
.
cas_protocol_version
,
server_url
=
provider
.
server_url
,
renew
=
False
,
renew
=
renew
,
)
def
get_login_url
(
self
):
...
...
cas_server/tests/test_federate.py
View file @
c6583c92
...
...
@@ -84,6 +84,10 @@ class FederateAuthLoginLogoutTestCase(
params
[
'provider'
]
=
provider
.
suffix
if
remember
:
params
[
'remember'
]
=
'on'
# just try for one suffix
if
suffix
==
"example.com"
:
# if renew=False is posted it should be ignored
params
[
"renew"
]
=
False
# post the choosed provider
response
=
client
.
post
(
'/federate'
,
params
)
# we are redirected to the provider CAS client url
...
...
@@ -351,6 +355,76 @@ class FederateAuthLoginLogoutTestCase(
provider
.
suffix
))
def
test_forget_provider
(
self
):
"""Test the logout option to forget remembered provider"""
tickets
=
self
.
test_login_post_provider
(
remember
=
True
)
for
(
provider
,
_
,
client
)
in
tickets
:
self
.
assertIn
(
"remember_provider"
,
client
.
cookies
)
self
.
assertEqual
(
client
.
cookies
[
"remember_provider"
].
value
,
provider
.
suffix
)
self
.
assertNotEqual
(
client
.
cookies
[
"remember_provider"
][
"max-age"
],
0
)
client
.
get
(
"/logout?forget_provider=1"
)
self
.
assertEqual
(
client
.
cookies
[
"remember_provider"
][
"max-age"
],
0
)
def
test_renew
(
self
):
"""
Test authentication renewal with federation mode
"""
tickets
=
self
.
test_login_post_provider
()
for
(
provider
,
_
,
client
)
in
tickets
:
# Try to renew authentication(client already authenticated in test_login_post_provider
response
=
client
.
get
(
"/login?renew=true"
)
# we should be redirected to the user CAS
self
.
assertEqual
(
response
.
status_code
,
302
)
self
.
assertEqual
(
response
[
"Location"
],
"%s/federate/%s?renew=true"
%
(
'http://testserver'
if
django
.
VERSION
<
(
1
,
9
)
else
""
,
provider
.
suffix
))
response
=
client
.
get
(
"/federate/%s?renew=true"
%
provider
.
suffix
)
self
.
assertEqual
(
response
.
status_code
,
302
)
service_url
=
(
"service=http%%3A%%2F%%2Ftestserver%%2Ffederate%%2F%s%%3Frenew%%3Dtrue"
)
%
provider
.
suffix
self
.
assertIn
(
service_url
,
response
[
"Location"
])
self
.
assertIn
(
"renew=true"
,
response
[
"Location"
])
cas_port
=
int
(
provider
.
server_url
.
split
(
':'
)[
-
1
])
# let's generate a ticket
ticket
=
utils
.
gen_st
()
# we lauch a dummy CAS server that only validate once for the service
# http://testserver/federate/example.com?renew=true with `ticket`
tests_utils
.
DummyCAS
.
run
(
(
"http://testserver/federate/%s?renew=true"
%
provider
.
suffix
).
encode
(
"ascii"
),
ticket
.
encode
(
"ascii"
),
settings
.
CAS_TEST_USER
.
encode
(
"utf8"
),
[],
cas_port
)
# we normally provide a good ticket and should be redirected to /login as the ticket
# get successfully validated again the dummy CAS
response
=
client
.
get
(
'/federate/%s'
%
provider
.
suffix
,
{
'ticket'
:
ticket
,
'renew'
:
'true'
}
)
self
.
assertEqual
(
response
.
status_code
,
302
)
self
.
assertEqual
(
response
[
"Location"
],
"%s/login?renew=true"
%
(
'http://testserver'
if
django
.
VERSION
<
(
1
,
9
)
else
""
))
# follow the redirect and try to get a ticket to see is it has renew set to True
response
=
client
.
get
(
"/login?renew=true&service=%s"
%
self
.
service
)
# we should get a page with a from with all widget hidden that auto POST to /login using
# javascript. If javascript is disabled, a "connect" button is showed
self
.
assertTrue
(
response
.
context
[
'auto_submit'
])
self
.
assertEqual
(
response
.
context
[
'post_url'
],
'/login'
)
params
=
tests_utils
.
copy_form
(
response
.
context
[
"form"
])
# POST get prefiled from parameters
response
=
client
.
post
(
"/login"
,
params
)
self
.
assertEqual
(
response
.
status_code
,
302
)
self
.
assertTrue
(
response
[
"Location"
].
startswith
(
"%s?ticket="
%
self
.
service
))
ticket_value
=
response
[
"Location"
].
split
(
'ticket='
)[
-
1
]
ticket
=
models
.
ServiceTicket
.
objects
.
get
(
value
=
ticket_value
)
self
.
assertTrue
(
ticket
.
renew
)
def
test_login_bad_ticket
(
self
):
"""
Try login with a bad ticket:
...
...
cas_server/views.py
View file @
c6583c92
...
...
@@ -212,6 +212,7 @@ class LogoutView(View, LogoutMixin):
class
FederateAuth
(
View
):
"""view to authenticated user agains a backend CAS then CAS_FEDERATE is True"""
@
method_decorator
(
csrf_exempt
)
# csrf is disabled for allowing SLO requests reception
def
dispatch
(
self
,
request
,
*
args
,
**
kwargs
):
"""
...
...
@@ -221,7 +222,7 @@ class FederateAuth(View):
"""
return
super
(
FederateAuth
,
self
).
dispatch
(
request
,
*
args
,
**
kwargs
)
def
get_cas_client
(
self
,
request
,
provider
):
def
get_cas_client
(
self
,
request
,
provider
,
renew
=
False
):
"""
return a CAS client object matching provider
...
...
@@ -234,7 +235,7 @@ class FederateAuth(View):
# compute the current url, ignoring ticket dans provider GET parameters
service_url
=
utils
.
get_current_url
(
request
,
{
"ticket"
,
"provider"
})
self
.
service_url
=
service_url
return
CASFederateValidateUser
(
provider
,
service_url
)
return
CASFederateValidateUser
(
provider
,
service_url
,
renew
=
renew
)
def
post
(
self
,
request
,
provider
=
None
):
"""
...
...
@@ -291,16 +292,17 @@ class FederateAuth(View):
if
not
settings
.
CAS_FEDERATE
:
logger
.
warning
(
"CAS_FEDERATE is False, set it to True to use the federated mode"
)
return
redirect
(
"cas_server:login"
)
renew
=
bool
(
request
.
GET
.
get
(
'renew'
)
and
request
.
GET
[
'renew'
]
!=
"False"
)
# Is the user is already authenticated, no need to request authentication to the user
# identity provider.
if
self
.
request
.
session
.
get
(
"authenticated"
):
if
self
.
request
.
session
.
get
(
"authenticated"
)
and
not
renew
:
logger
.
warning
(
"User already authenticated, dropping federate authentication request"
)
return
redirect
(
"cas_server:login"
)
try
:
# get the identity provider from its suffix
provider
=
FederatedIendityProvider
.
objects
.
get
(
suffix
=
provider
)
# get a CAS client for the user identity provider
auth
=
self
.
get_cas_client
(
request
,
provider
)
auth
=
self
.
get_cas_client
(
request
,
provider
,
renew
)
# if no ticket submited, redirect to the identity provider CAS login page
if
'ticket'
not
in
request
.
GET
:
logger
.
info
(
"Trying to authenticate again %s"
%
auth
.
provider
.
server_url
)
...
...
@@ -871,6 +873,24 @@ class LoginView(View, LogoutMixin):
)
return
HttpResponseRedirect
(
url
)
else
:
# if user is authenticated and auth renewal is requested, redirect directly
# to the user identity provider
if
self
.
renew
and
self
.
request
.
session
.
get
(
"authenticated"
):
try
:
user
=
FederatedUser
.
get_from_federated_username
(
self
.
request
.
session
.
get
(
"username"
)
)
params
=
utils
.
copy_params
(
self
.
request
.
GET
)
url
=
utils
.
reverse_params
(
"cas_server:federateAuth"
,
params
=
params
,
kwargs
=
dict
(
provider
=
user
.
provider
.
suffix
)
)
return
HttpResponseRedirect
(
url
)
# Should normally not happen: if the user is logged, it exists in the
# database.
except
FederatedUser
.
DoesNotExist
:
# pragma: no cover
pass
return
render
(
self
.
request
,
settings
.
CAS_LOGIN_TEMPLATE
,
...
...
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