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-rw-r--r--synapse/rest/client/v1/login.py75
1 files changed, 74 insertions, 1 deletions
diff --git a/synapse/rest/client/v1/login.py b/synapse/rest/client/v1/login.py
index b2257b749d..998d4d44c6 100644
--- a/synapse/rest/client/v1/login.py
+++ b/synapse/rest/client/v1/login.py
@@ -20,14 +20,32 @@ from synapse.types import UserID
 from base import ClientV1RestServlet, client_path_pattern
 
 import simplejson as json
+import urllib
+
+import logging
+from saml2 import BINDING_HTTP_POST
+from saml2 import config
+from saml2.client import Saml2Client
+
+
+logger = logging.getLogger(__name__)
 
 
 class LoginRestServlet(ClientV1RestServlet):
     PATTERN = client_path_pattern("/login$")
     PASS_TYPE = "m.login.password"
+    SAML2_TYPE = "m.login.saml2"
+
+    def __init__(self, hs):
+        super(LoginRestServlet, self).__init__(hs)
+        self.idp_redirect_url = hs.config.saml2_idp_redirect_url
+        self.saml2_enabled = hs.config.saml2_enabled
 
     def on_GET(self, request):
-        return (200, {"flows": [{"type": LoginRestServlet.PASS_TYPE}]})
+        flows = [{"type": LoginRestServlet.PASS_TYPE}]
+        if self.saml2_enabled:
+            flows.append({"type": LoginRestServlet.SAML2_TYPE})
+        return (200, {"flows": flows})
 
     def on_OPTIONS(self, request):
         return (200, {})
@@ -39,6 +57,16 @@ class LoginRestServlet(ClientV1RestServlet):
             if login_submission["type"] == LoginRestServlet.PASS_TYPE:
                 result = yield self.do_password_login(login_submission)
                 defer.returnValue(result)
+            elif self.saml2_enabled and (login_submission["type"] ==
+                                         LoginRestServlet.SAML2_TYPE):
+                relay_state = ""
+                if "relay_state" in login_submission:
+                    relay_state = "&RelayState="+urllib.quote(
+                                  login_submission["relay_state"])
+                result = {
+                    "uri": "%s%s" % (self.idp_redirect_url, relay_state)
+                }
+                defer.returnValue((200, result))
             else:
                 raise SynapseError(400, "Bad login type.")
         except KeyError:
@@ -94,6 +122,49 @@ class PasswordResetRestServlet(ClientV1RestServlet):
             )
 
 
+class SAML2RestServlet(ClientV1RestServlet):
+    PATTERN = client_path_pattern("/login/saml2")
+
+    def __init__(self, hs):
+        super(SAML2RestServlet, self).__init__(hs)
+        self.sp_config = hs.config.saml2_config_path
+
+    @defer.inlineCallbacks
+    def on_POST(self, request):
+        saml2_auth = None
+        try:
+            conf = config.SPConfig()
+            conf.load_file(self.sp_config)
+            SP = Saml2Client(conf)
+            saml2_auth = SP.parse_authn_request_response(
+                request.args['SAMLResponse'][0], BINDING_HTTP_POST)
+        except Exception, e:        # Not authenticated
+            logger.exception(e)
+        if saml2_auth and saml2_auth.status_ok() and not saml2_auth.not_signed:
+            username = saml2_auth.name_id.text
+            handler = self.handlers.registration_handler
+            (user_id, token) = yield handler.register_saml2(username)
+            # Forward to the RelayState callback along with ava
+            if 'RelayState' in request.args:
+                request.redirect(urllib.unquote(
+                                 request.args['RelayState'][0]) +
+                                 '?status=authenticated&access_token=' +
+                                 token + '&user_id=' + user_id + '&ava=' +
+                                 urllib.quote(json.dumps(saml2_auth.ava)))
+                request.finish()
+                defer.returnValue(None)
+            defer.returnValue((200, {"status": "authenticated",
+                                     "user_id": user_id, "token": token,
+                                     "ava": saml2_auth.ava}))
+        elif 'RelayState' in request.args:
+            request.redirect(urllib.unquote(
+                             request.args['RelayState'][0]) +
+                             '?status=not_authenticated')
+            request.finish()
+            defer.returnValue(None)
+        defer.returnValue((200, {"status": "not_authenticated"}))
+
+
 def _parse_json(request):
     try:
         content = json.loads(request.content.read())
@@ -106,4 +177,6 @@ def _parse_json(request):
 
 def register_servlets(hs, http_server):
     LoginRestServlet(hs).register(http_server)
+    if hs.config.saml2_enabled:
+        SAML2RestServlet(hs).register(http_server)
     # TODO PasswordResetRestServlet(hs).register(http_server)