From c39bde684da223c46368605368f63ac1beb8b6d4 Mon Sep 17 00:00:00 2001
From: drebs <drebs@leap.se>
Date: Sun, 18 Dec 2016 21:06:26 -0200
Subject: [feat] cache session data in server

---
 server/src/leap/soledad/server/auth.py     |  2 +-
 server/src/leap/soledad/server/resource.py |  3 +-
 server/src/leap/soledad/server/session.py  | 55 +++++++++++++++++++++++++++---
 3 files changed, 52 insertions(+), 8 deletions(-)

(limited to 'server')

diff --git a/server/src/leap/soledad/server/auth.py b/server/src/leap/soledad/server/auth.py
index f55b710e..c5b90359 100644
--- a/server/src/leap/soledad/server/auth.py
+++ b/server/src/leap/soledad/server/auth.py
@@ -45,7 +45,7 @@ class SoledadRealm(object):
 
     def requestAvatar(self, avatarId, mind, *interfaces):
         if IResource in interfaces:
-            return (IResource, SoledadResource(avatarId), lambda: None)
+            return (IResource, SoledadResource(), lambda: None)
         raise NotImplementedError()
 
 
diff --git a/server/src/leap/soledad/server/resource.py b/server/src/leap/soledad/server/resource.py
index 9922c997..67e9ae32 100644
--- a/server/src/leap/soledad/server/resource.py
+++ b/server/src/leap/soledad/server/resource.py
@@ -41,8 +41,7 @@ class SoledadResource(Resource):
     for the Soledad Server.
     """
 
-    def __init__(self, uuid):
-        self._uuid = uuid
+    def __init__(self):
         self.children = {'': wsgi_resource}
 
     def getChild(self, path, request):
diff --git a/server/src/leap/soledad/server/session.py b/server/src/leap/soledad/server/session.py
index 22e1d1fb..75440089 100644
--- a/server/src/leap/soledad/server/session.py
+++ b/server/src/leap/soledad/server/session.py
@@ -21,15 +21,41 @@ from zope.interface import implementer
 
 from twisted.cred import error
 from twisted.python import log
+from twisted.python.components import registerAdapter
 from twisted.web import util
 from twisted.web.guard import HTTPAuthSessionWrapper
 from twisted.web.resource import ErrorPage
 from twisted.web.resource import IResource
+from twisted.web.server import Session
+from zope.interface import Interface
+from zope.interface import Attribute
 
 from leap.soledad.server.auth import URLMapper
 from leap.soledad.server.auth import portal
 from leap.soledad.server.auth import credentialFactory
 from leap.soledad.server.auth import UnauthorizedResource
+from leap.soledad.server.resource import SoledadResource
+
+
+class ISessionData(Interface):
+    username = Attribute('An uuid.')
+    password = Attribute('A token.')
+
+
+@implementer(ISessionData)
+class SessionData(object):
+    def __init__(self, session):
+        self.username = None
+        self.password = None
+
+
+registerAdapter(SessionData, Session, ISessionData)
+
+
+def _sessionData(request):
+    session = request.getSession()
+    data = ISessionData(session)
+    return data
 
 
 @implementer(IResource)
@@ -71,8 +97,27 @@ class SoledadSession(HTTPAuthSessionWrapper):
         except:
             log.err(None, "Unexpected failure from credentials factory")
             return ErrorPage(500, None, None)
-        else:
-            request_uuid = match.get('uuid')
-            if request_uuid and request_uuid != credentials.username:
-                return ErrorPage(500, None, None)
-            return util.DeferredResource(self._login(credentials))
+
+        request_uuid = match.get('uuid')
+        if request_uuid and request_uuid != credentials.username:
+            return ErrorPage(500, None, None)
+
+        # eventually return a cached resouce
+        sessionData = _sessionData(request)
+        if sessionData.username == credentials.username \
+                and sessionData.password == credentials.password:
+            return SoledadResource()
+
+        return util.DeferredResource(self._login(credentials, sessionData))
+
+    def _login(self, credentials, sessionData):
+
+        def _cacheSessionData(res):
+            sessionData.username = credentials.username
+            sessionData.password = credentials.password
+            return res
+
+        d = self._portal.login(credentials, None, IResource)
+        d.addCallback(_cacheSessionData)
+        d.addCallbacks(self._loginSucceeded, self._loginFailed)
+        return d
-- 
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