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Conform better to the CAS protocol specification

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Redirect to CAS's /login endpoint properly, and
don't require an <attributes> element.

Signed-off-by: Shell Turner <cam.turn@gmail.com>
This commit is contained in:
Shell Turner 2016-09-09 19:39:30 +01:00
parent dbff7e9436
commit 29205e9596
1 changed files with 2 additions and 5 deletions
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7
synapse/rest/client/v1/login.py
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@ -318,7 +318,7 @@ class CasRedirectServlet(ClientV1RestServlet):
service_param = urllib.urlencode({
"service": "%s?%s" % (hs_redirect_url, client_redirect_url_param)
})
request.redirect("%s?%s" % (self.cas_server_url, service_param))
request.redirect("%s/login?%s" % (self.cas_server_url, service_param))
finish_request(request)
@ -385,7 +385,7 @@ class CasTicketServlet(ClientV1RestServlet):
def parse_cas_response(self, cas_response_body):
user = None
attributes = None
attributes = {}
try:
root = ET.fromstring(cas_response_body)
if not root.tag.endswith("serviceResponse"):
@ -395,7 +395,6 @@ class CasTicketServlet(ClientV1RestServlet):
if child.tag.endswith("user"):
user = child.text
if child.tag.endswith("attributes"):
attributes = {}
for attribute in child:
# ElementTree library expands the namespace in
# attribute tags to the full URL of the namespace.
@ -407,8 +406,6 @@ class CasTicketServlet(ClientV1RestServlet):
attributes[tag] = attribute.text
if user is None:
raise Exception("CAS response does not contain user")
if attributes is None:
raise Exception("CAS response does not contain attributes")
except Exception:
logger.error("Error parsing CAS response", exc_info=1)
raise LoginError(401, "Invalid CAS response",