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-rw-r--r--changelog.d/5073.feature1
-rw-r--r--docs/admin_api/account_validity.rst42
-rw-r--r--synapse/api/auth.py2
-rw-r--r--synapse/handlers/account_validity.py33
-rw-r--r--synapse/rest/client/v1/admin.py39
-rw-r--r--synapse/rest/client/v2_alpha/account_validity.py31
-rw-r--r--synapse/storage/registration.py29
-rw-r--r--tests/rest/client/v2_alpha/test_register.py95
8 files changed, 246 insertions, 26 deletions
diff --git a/changelog.d/5073.feature b/changelog.d/5073.feature
new file mode 100644
index 0000000000..12766a82a7
--- /dev/null
+++ b/changelog.d/5073.feature
@@ -0,0 +1 @@
+Add time-based account expiration.
diff --git a/docs/admin_api/account_validity.rst b/docs/admin_api/account_validity.rst
new file mode 100644
index 0000000000..980ea23605
--- /dev/null
+++ b/docs/admin_api/account_validity.rst
@@ -0,0 +1,42 @@
+Account validity API
+====================
+
+This API allows a server administrator to manage the validity of an account. To
+use it, you must enable the account validity feature (under
+``account_validity``) in Synapse's configuration.
+
+Renew account
+-------------
+
+This API extends the validity of an account by as much time as configured in the
+``period`` parameter from the ``account_validity`` configuration.
+
+The API is::
+
+    POST /_matrix/client/unstable/account_validity/send_mail
+
+with the following body:
+
+.. code:: json
+
+    {
+        "user_id": "<user ID for the account to renew>",
+        "expiration_ts": 0,
+        "enable_renewal_emails": true
+    }
+
+
+``expiration_ts`` is an optional parameter and overrides the expiration date,
+which otherwise defaults to now + validity period.
+
+``enable_renewal_emails`` is also an optional parameter and enables/disables
+sending renewal emails to the user. Defaults to true.
+
+The API returns with the new expiration date for this account, as a timestamp in
+milliseconds since epoch:
+
+.. code:: json
+
+    {
+        "expiration_ts": 0
+    }
diff --git a/synapse/api/auth.py b/synapse/api/auth.py
index 4482962510..960e66dbdc 100644
--- a/synapse/api/auth.py
+++ b/synapse/api/auth.py
@@ -232,7 +232,7 @@ class Auth(object):
             if self._account_validity.enabled:
                 user_id = user.to_string()
                 expiration_ts = yield self.store.get_expiration_ts_for_user(user_id)
-                if expiration_ts and self.clock.time_msec() >= expiration_ts:
+                if expiration_ts is not None and self.clock.time_msec() >= expiration_ts:
                     raise AuthError(
                         403,
                         "User account has expired",
diff --git a/synapse/handlers/account_validity.py b/synapse/handlers/account_validity.py
index e82049e42d..261446517d 100644
--- a/synapse/handlers/account_validity.py
+++ b/synapse/handlers/account_validity.py
@@ -91,6 +91,11 @@ class AccountValidityHandler(object):
                 )
 
     @defer.inlineCallbacks
+    def send_renewal_email_to_user(self, user_id):
+        expiration_ts = yield self.store.get_expiration_ts_for_user(user_id)
+        yield self._send_renewal_email(user_id, expiration_ts)
+
+    @defer.inlineCallbacks
     def _send_renewal_email(self, user_id, expiration_ts):
         """Sends out a renewal email to every email address attached to the given user
         with a unique link allowing them to renew their account.
@@ -217,12 +222,32 @@ class AccountValidityHandler(object):
             renewal_token (str): Token sent with the renewal request.
         """
         user_id = yield self.store.get_user_from_renewal_token(renewal_token)
-
         logger.debug("Renewing an account for user %s", user_id)
+        yield self.renew_account_for_user(user_id)
 
-        new_expiration_date = self.clock.time_msec() + self._account_validity.period
+    @defer.inlineCallbacks
+    def renew_account_for_user(self, user_id, expiration_ts=None, email_sent=False):
+        """Renews the account attached to a given user by pushing back the
+        expiration date by the current validity period in the server's
+        configuration.
 
-        yield self.store.renew_account_for_user(
+        Args:
+            renewal_token (str): Token sent with the renewal request.
+            expiration_ts (int): New expiration date. Defaults to now + validity period.
+            email_sent (bool): Whether an email has been sent for this validity period.
+                Defaults to False.
+
+        Returns:
+            defer.Deferred[int]: New expiration date for this account, as a timestamp
+                in milliseconds since epoch.
+        """
+        if expiration_ts is None:
+            expiration_ts = self.clock.time_msec() + self._account_validity.period
+
+        yield self.store.set_account_validity_for_user(
             user_id=user_id,
-            new_expiration_ts=new_expiration_date,
+            expiration_ts=expiration_ts,
+            email_sent=email_sent,
         )
+
+        defer.returnValue(expiration_ts)
diff --git a/synapse/rest/client/v1/admin.py b/synapse/rest/client/v1/admin.py
index e788769639..d27472c538 100644
--- a/synapse/rest/client/v1/admin.py
+++ b/synapse/rest/client/v1/admin.py
@@ -786,6 +786,44 @@ class SearchUsersRestServlet(ClientV1RestServlet):
         defer.returnValue((200, ret))
 
 
+class AccountValidityRenewServlet(ClientV1RestServlet):
+    PATTERNS = client_path_patterns("/admin/account_validity/validity$")
+
+    def __init__(self, hs):
+        """
+        Args:
+            hs (synapse.server.HomeServer): server
+        """
+        super(AccountValidityRenewServlet, self).__init__(hs)
+
+        self.hs = hs
+        self.account_activity_handler = hs.get_account_validity_handler()
+        self.auth = hs.get_auth()
+
+    @defer.inlineCallbacks
+    def on_POST(self, request):
+        requester = yield self.auth.get_user_by_req(request)
+        is_admin = yield self.auth.is_server_admin(requester.user)
+
+        if not is_admin:
+            raise AuthError(403, "You are not a server admin")
+
+        body = parse_json_object_from_request(request)
+
+        if "user_id" not in body:
+            raise SynapseError(400, "Missing property 'user_id' in the request body")
+
+        expiration_ts = yield self.account_activity_handler.renew_account_for_user(
+            body["user_id"], body.get("expiration_ts"),
+            not body.get("enable_renewal_emails", True),
+        )
+
+        res = {
+            "expiration_ts": expiration_ts,
+        }
+        defer.returnValue((200, res))
+
+
 def register_servlets(hs, http_server):
     WhoisRestServlet(hs).register(http_server)
     PurgeMediaCacheRestServlet(hs).register(http_server)
@@ -801,3 +839,4 @@ def register_servlets(hs, http_server):
     ListMediaInRoom(hs).register(http_server)
     UserRegisterServlet(hs).register(http_server)
     VersionServlet(hs).register(http_server)
+    AccountValidityRenewServlet(hs).register(http_server)
diff --git a/synapse/rest/client/v2_alpha/account_validity.py b/synapse/rest/client/v2_alpha/account_validity.py
index 1ff6a6b638..fc8dbeb617 100644
--- a/synapse/rest/client/v2_alpha/account_validity.py
+++ b/synapse/rest/client/v2_alpha/account_validity.py
@@ -17,7 +17,7 @@ import logging
 
 from twisted.internet import defer
 
-from synapse.api.errors import SynapseError
+from synapse.api.errors import AuthError, SynapseError
 from synapse.http.server import finish_request
 from synapse.http.servlet import RestServlet
 
@@ -39,6 +39,7 @@ class AccountValidityRenewServlet(RestServlet):
 
         self.hs = hs
         self.account_activity_handler = hs.get_account_validity_handler()
+        self.auth = hs.get_auth()
 
     @defer.inlineCallbacks
     def on_GET(self, request):
@@ -58,5 +59,33 @@ class AccountValidityRenewServlet(RestServlet):
         defer.returnValue(None)
 
 
+class AccountValiditySendMailServlet(RestServlet):
+    PATTERNS = client_v2_patterns("/account_validity/send_mail$")
+
+    def __init__(self, hs):
+        """
+        Args:
+            hs (synapse.server.HomeServer): server
+        """
+        super(AccountValiditySendMailServlet, self).__init__()
+
+        self.hs = hs
+        self.account_activity_handler = hs.get_account_validity_handler()
+        self.auth = hs.get_auth()
+        self.account_validity = self.hs.config.account_validity
+
+    @defer.inlineCallbacks
+    def on_POST(self, request):
+        if not self.account_validity.renew_by_email_enabled:
+            raise AuthError(403, "Account renewal via email is disabled on this server.")
+
+        requester = yield self.auth.get_user_by_req(request)
+        user_id = requester.user.to_string()
+        yield self.account_activity_handler.send_renewal_email_to_user(user_id)
+
+        defer.returnValue((200, {}))
+
+
 def register_servlets(hs, http_server):
     AccountValidityRenewServlet(hs).register(http_server)
+    AccountValiditySendMailServlet(hs).register(http_server)
diff --git a/synapse/storage/registration.py b/synapse/storage/registration.py
index a78850259f..dfdb4e7e34 100644
--- a/synapse/storage/registration.py
+++ b/synapse/storage/registration.py
@@ -108,25 +108,30 @@ class RegistrationWorkerStore(SQLBaseStore):
         defer.returnValue(res)
 
     @defer.inlineCallbacks
-    def renew_account_for_user(self, user_id, new_expiration_ts):
-        """Updates the account validity table with a new timestamp for a given
-        user, removes the existing renewal token from this user, and unsets the
-        flag indicating that an email has been sent for renewing this account.
+    def set_account_validity_for_user(self, user_id, expiration_ts, email_sent,
+                                      renewal_token=None):
+        """Updates the account validity properties of the given account, with the
+        given values.
 
         Args:
-            user_id (str): ID of the user whose account validity to renew.
-            new_expiration_ts: New expiration date, as a timestamp in milliseconds
+            user_id (str): ID of the account to update properties for.
+            expiration_ts (int): New expiration date, as a timestamp in milliseconds
                 since epoch.
+            email_sent (bool): True means a renewal email has been sent for this
+                account and there's no need to send another one for the current validity
+                period.
+            renewal_token (str): Renewal token the user can use to extend the validity
+                of their account. Defaults to no token.
         """
-        def renew_account_for_user_txn(txn):
+        def set_account_validity_for_user_txn(txn):
             self._simple_update_txn(
                 txn=txn,
                 table="account_validity",
                 keyvalues={"user_id": user_id},
                 updatevalues={
-                    "expiration_ts_ms": new_expiration_ts,
-                    "email_sent": False,
-                    "renewal_token": None,
+                    "expiration_ts_ms": expiration_ts,
+                    "email_sent": email_sent,
+                    "renewal_token": renewal_token,
                 },
             )
             self._invalidate_cache_and_stream(
@@ -134,8 +139,8 @@ class RegistrationWorkerStore(SQLBaseStore):
             )
 
         yield self.runInteraction(
-            "renew_account_for_user",
-            renew_account_for_user_txn,
+            "set_account_validity_for_user",
+            set_account_validity_for_user_txn,
         )
 
     @defer.inlineCallbacks
diff --git a/tests/rest/client/v2_alpha/test_register.py b/tests/rest/client/v2_alpha/test_register.py
index 8fb5140a05..3d44667489 100644
--- a/tests/rest/client/v2_alpha/test_register.py
+++ b/tests/rest/client/v2_alpha/test_register.py
@@ -201,6 +201,7 @@ class AccountValidityTestCase(unittest.HomeserverTestCase):
         admin.register_servlets,
         login.register_servlets,
         sync.register_servlets,
+        account_validity.register_servlets,
     ]
 
     def make_homeserver(self, reactor, clock):
@@ -238,6 +239,68 @@ class AccountValidityTestCase(unittest.HomeserverTestCase):
             channel.json_body["errcode"], Codes.EXPIRED_ACCOUNT, channel.result,
         )
 
+    def test_manual_renewal(self):
+        user_id = self.register_user("kermit", "monkey")
+        tok = self.login("kermit", "monkey")
+
+        self.reactor.advance(datetime.timedelta(weeks=1).total_seconds())
+
+        # If we register the admin user at the beginning of the test, it will
+        # expire at the same time as the normal user and the renewal request
+        # will be denied.
+        self.register_user("admin", "adminpassword", admin=True)
+        admin_tok = self.login("admin", "adminpassword")
+
+        url = "/_matrix/client/unstable/admin/account_validity/validity"
+        params = {
+            "user_id": user_id,
+        }
+        request_data = json.dumps(params)
+        request, channel = self.make_request(
+            b"POST", url, request_data, access_token=admin_tok,
+        )
+        self.render(request)
+        self.assertEquals(channel.result["code"], b"200", channel.result)
+
+        # The specific endpoint doesn't matter, all we need is an authenticated
+        # endpoint.
+        request, channel = self.make_request(
+            b"GET", "/sync", access_token=tok,
+        )
+        self.render(request)
+        self.assertEquals(channel.result["code"], b"200", channel.result)
+
+    def test_manual_expire(self):
+        user_id = self.register_user("kermit", "monkey")
+        tok = self.login("kermit", "monkey")
+
+        self.register_user("admin", "adminpassword", admin=True)
+        admin_tok = self.login("admin", "adminpassword")
+
+        url = "/_matrix/client/unstable/admin/account_validity/validity"
+        params = {
+            "user_id": user_id,
+            "expiration_ts": 0,
+            "enable_renewal_emails": False,
+        }
+        request_data = json.dumps(params)
+        request, channel = self.make_request(
+            b"POST", url, request_data, access_token=admin_tok,
+        )
+        self.render(request)
+        self.assertEquals(channel.result["code"], b"200", channel.result)
+
+        # The specific endpoint doesn't matter, all we need is an authenticated
+        # endpoint.
+        request, channel = self.make_request(
+            b"GET", "/sync", access_token=tok,
+        )
+        self.render(request)
+        self.assertEquals(channel.result["code"], b"403", channel.result)
+        self.assertEquals(
+            channel.json_body["errcode"], Codes.EXPIRED_ACCOUNT, channel.result,
+        )
+
 
 class AccountValidityRenewalByEmailTestCase(unittest.HomeserverTestCase):
 
@@ -287,6 +350,8 @@ class AccountValidityRenewalByEmailTestCase(unittest.HomeserverTestCase):
         return self.hs
 
     def test_renewal_email(self):
+        self.email_attempts = []
+
         user_id = self.register_user("kermit", "monkey")
         tok = self.login("kermit", "monkey")
         # We need to manually add an email address otherwise the handler will do
@@ -297,14 +362,6 @@ class AccountValidityRenewalByEmailTestCase(unittest.HomeserverTestCase):
             validated_at=now, added_at=now,
         ))
 
-        # The specific endpoint doesn't matter, all we need is an authenticated
-        # endpoint.
-        request, channel = self.make_request(
-            b"GET", "/sync", access_token=tok,
-        )
-        self.render(request)
-        self.assertEquals(channel.result["code"], b"200", channel.result)
-
         # Move 6 days forward. This should trigger a renewal email to be sent.
         self.reactor.advance(datetime.timedelta(days=6).total_seconds())
         self.assertEqual(len(self.email_attempts), 1)
@@ -326,3 +383,25 @@ class AccountValidityRenewalByEmailTestCase(unittest.HomeserverTestCase):
         )
         self.render(request)
         self.assertEquals(channel.result["code"], b"200", channel.result)
+
+    def test_manual_email_send(self):
+        self.email_attempts = []
+
+        user_id = self.register_user("kermit", "monkey")
+        tok = self.login("kermit", "monkey")
+        # We need to manually add an email address otherwise the handler will do
+        # nothing.
+        now = self.hs.clock.time_msec()
+        self.get_success(self.store.user_add_threepid(
+            user_id=user_id, medium="email", address="kermit@example.com",
+            validated_at=now, added_at=now,
+        ))
+
+        request, channel = self.make_request(
+            b"POST", "/_matrix/client/unstable/account_validity/send_mail",
+            access_token=tok,
+        )
+        self.render(request)
+        self.assertEquals(channel.result["code"], b"200", channel.result)
+
+        self.assertEqual(len(self.email_attempts), 1)