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-rw-r--r--synapse/handlers/auth.py56
-rw-r--r--synapse/handlers/register.py26
2 files changed, 57 insertions, 25 deletions
diff --git a/synapse/handlers/auth.py b/synapse/handlers/auth.py
index ff2c66f442..17465d2af6 100644
--- a/synapse/handlers/auth.py
+++ b/synapse/handlers/auth.py
@@ -26,6 +26,7 @@ from twisted.web.client import PartialDownloadError
 
 import logging
 import bcrypt
+import pymacaroons
 import simplejson
 
 import synapse.util.stringutils as stringutils
@@ -278,18 +279,18 @@ class AuthHandler(BaseHandler):
             user_id (str): User ID
             password (str): Password
         Returns:
-            The access token for the user's session.
+            A tuple of:
+              The access token for the user's session.
+              The refresh token for the user's session.
         Raises:
             StoreError if there was a problem storing the token.
             LoginError if there was an authentication problem.
         """
         yield self._check_password(user_id, password)
-
-        reg_handler = self.hs.get_handlers().registration_handler
-        access_token = reg_handler.generate_token(user_id)
         logger.info("Logging in user %s", user_id)
-        yield self.store.add_access_token_to_user(user_id, access_token)
-        defer.returnValue(access_token)
+        access_token = yield self.issue_access_token(user_id)
+        refresh_token = yield self.issue_refresh_token(user_id)
+        defer.returnValue((access_token, refresh_token))
 
     @defer.inlineCallbacks
     def _check_password(self, user_id, password):
@@ -305,6 +306,49 @@ class AuthHandler(BaseHandler):
             raise LoginError(403, "", errcode=Codes.FORBIDDEN)
 
     @defer.inlineCallbacks
+    def issue_access_token(self, user_id):
+        access_token = self.generate_access_token(user_id)
+        yield self.store.add_access_token_to_user(user_id, access_token)
+        defer.returnValue(access_token)
+
+    @defer.inlineCallbacks
+    def issue_refresh_token(self, user_id):
+        refresh_token = self.generate_refresh_token(user_id)
+        yield self.store.add_refresh_token_to_user(user_id, refresh_token)
+        defer.returnValue(refresh_token)
+
+    def generate_access_token(self, user_id):
+        macaroon = pymacaroons.Macaroon(
+            location=self.hs.config.server_name,
+            identifier="key",
+            key=self.hs.config.macaroon_secret_key)
+        macaroon.add_first_party_caveat("gen = 1")
+        macaroon.add_first_party_caveat("user_id = %s" % (user_id,))
+        macaroon.add_first_party_caveat("type = access")
+        now = self.hs.get_clock().time_msec()
+        expiry = now + (60 * 60 * 1000)
+        macaroon.add_first_party_caveat("time < %d" % (expiry,))
+
+        return macaroon.serialize()
+
+    def generate_refresh_token(self, user_id):
+        m = self._generate_base_macaroon(user_id)
+        m.add_first_party_caveat("type = refresh")
+        # Important to add a nonce, because otherwise every refresh token for a
+        # user will be the same.
+        m.add_first_party_caveat("nonce = %s" % stringutils.random_string_with_symbols(16))
+        return m.serialize()
+
+    def _generate_base_macaroon(self, user_id):
+        macaroon = pymacaroons.Macaroon(
+            location = self.hs.config.server_name,
+            identifier = "key",
+            key = self.hs.config.macaroon_secret_key)
+        macaroon.add_first_party_caveat("gen = 1")
+        macaroon.add_first_party_caveat("user_id = %s" % (user_id,))
+        return macaroon
+
+    @defer.inlineCallbacks
     def set_password(self, user_id, newpassword):
         password_hash = bcrypt.hashpw(newpassword, bcrypt.gensalt())
 
diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py
index 1adc3eebbb..3d1b6531c2 100644
--- a/synapse/handlers/register.py
+++ b/synapse/handlers/register.py
@@ -27,7 +27,6 @@ from synapse.http.client import CaptchaServerHttpClient
 
 import bcrypt
 import logging
-import pymacaroons
 import urllib
 
 logger = logging.getLogger(__name__)
@@ -91,7 +90,7 @@ class RegistrationHandler(BaseHandler):
             user = UserID(localpart, self.hs.hostname)
             user_id = user.to_string()
 
-            token = self.generate_token(user_id)
+            token = self.auth_handler().generate_access_token(user_id)
             yield self.store.register(
                 user_id=user_id,
                 token=token,
@@ -111,7 +110,7 @@ class RegistrationHandler(BaseHandler):
                     user_id = user.to_string()
                     yield self.check_user_id_is_valid(user_id)
 
-                    token = self.generate_token(user_id)
+                    token = self.auth_handler().generate_access_token(user_id)
                     yield self.store.register(
                         user_id=user_id,
                         token=token,
@@ -161,7 +160,7 @@ class RegistrationHandler(BaseHandler):
                 400, "Invalid user localpart for this application service.",
                 errcode=Codes.EXCLUSIVE
             )
-        token = self.generate_token(user_id)
+        token = self.auth_handler().generate_access_token(user_id)
         yield self.store.register(
             user_id=user_id,
             token=token,
@@ -208,7 +207,7 @@ class RegistrationHandler(BaseHandler):
         user_id = user.to_string()
 
         yield self.check_user_id_is_valid(user_id)
-        token = self.generate_token(user_id)
+        token = self.auth_handler().generate_access_token(user_id)
         try:
             yield self.store.register(
                 user_id=user_id,
@@ -273,20 +272,6 @@ class RegistrationHandler(BaseHandler):
                     errcode=Codes.EXCLUSIVE
                 )
 
-    def generate_token(self, user_id):
-        macaroon = pymacaroons.Macaroon(
-            location=self.hs.config.server_name,
-            identifier="key",
-            key=self.hs.config.macaroon_secret_key)
-        macaroon.add_first_party_caveat("gen = 1")
-        macaroon.add_first_party_caveat("user_id = %s" % (user_id,))
-        macaroon.add_first_party_caveat("type = access")
-        now = self.hs.get_clock().time_msec()
-        expiry = now + (60 * 60 * 1000)
-        macaroon.add_first_party_caveat("time < %d" % (expiry,))
-
-        return macaroon.serialize()
-
     def _generate_user_id(self):
         return "-" + stringutils.random_string(18)
 
@@ -329,3 +314,6 @@ class RegistrationHandler(BaseHandler):
             }
         )
         defer.returnValue(data)
+
+    def auth_handler(self):
+        return self.hs.get_handlers().auth_handler