SYN-48: Implement WHOIS rest servlet

9 files changed, 190 insertions, 25 deletions

diff --git a/synapse/api/auth.py b/synapse/api/auth.py
index 5e3ea5b8c5..8f7982c7fa 100644
--- a/synapse/api/auth.py
+++ b/synapse/api/auth.py
@@ -220,7 +220,8 @@ class Auth(object):
         # Can optionally look elsewhere in the request (e.g. headers)
         try:
             access_token = request.args["access_token"][0]
-            user = yield self.get_user_by_token(access_token)
+            user_info = yield self.get_user_by_token(access_token)
+            user = user_info["user"]
 
             ip_addr = self.hs.get_ip_from_request(request)
             user_agent = request.requestHeaders.getRawHeaders(
@@ -229,10 +230,11 @@ class Auth(object):
             )[0]
             if user and access_token and ip_addr:
                 self.store.insert_client_ip(
-                    user,
-                    access_token,
-                    ip_addr,
-                    user_agent
+                    user=user,
+                    access_token=access_token,
+                    device_id=user_info["device_id"],
+                    ip=ip_addr,
+                    user_agent=user_agent
                 )
 
             defer.returnValue(user)
@@ -246,15 +248,23 @@ class Auth(object):
         Args:
             token (str)- The access token to get the user by.
         Returns:
-            UserID : User ID object of the user who has that access token.
+            dict : dict that includes the user, device_id, and whether the
+                user is a server admin.
         Raises:
             AuthError if no user by that token exists or the token is invalid.
         """
         try:
-            user_id = yield self.store.get_user_by_token(token=token)
-            if not user_id:
+            ret = yield self.store.get_user_by_token(token=token)
+            if not ret:
                 raise StoreError()
-            defer.returnValue(self.hs.parse_userid(user_id))
+
+            user_info = {
+                "admin": bool(ret.get("admin", False)),
+                "device_id": ret.get("device_id"),
+                "user": self.hs.parse_userid(ret.get("name")),
+            }
+
+            defer.returnValue(user_info)
         except StoreError:
             raise AuthError(403, "Unrecognised access token.",
                             errcode=Codes.UNKNOWN_TOKEN)
diff --git a/synapse/handlers/__init__.py b/synapse/handlers/__init__.py
index 5308e2c8e1..d5df3c630b 100644
--- a/synapse/handlers/__init__.py
+++ b/synapse/handlers/__init__.py
@@ -25,6 +25,7 @@ from .profile import ProfileHandler
 from .presence import PresenceHandler
 from .directory import DirectoryHandler
 from .typing import TypingNotificationHandler
+from .admin import AdminHandler
 
 
 class Handlers(object):
@@ -49,3 +50,4 @@ class Handlers(object):
         self.login_handler = LoginHandler(hs)
         self.directory_handler = DirectoryHandler(hs)
         self.typing_notification_handler = TypingNotificationHandler(hs)
+        self.admin_handler = AdminHandler(hs)
diff --git a/synapse/handlers/admin.py b/synapse/handlers/admin.py
new file mode 100644
index 0000000000..687b343a1d
--- /dev/null
+++ b/synapse/handlers/admin.py
@@ -0,0 +1,62 @@
+# -*- coding: utf-8 -*-
+# Copyright 2014 OpenMarket Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from twisted.internet import defer
+
+from ._base import BaseHandler
+
+import logging
+
+
+logger = logging.getLogger(__name__)
+
+
+class AdminHandler(BaseHandler):
+
+    def __init__(self, hs):
+        super(AdminHandler, self).__init__(hs)
+
+    @defer.inlineCallbacks
+    def get_whois(self, user):
+        res = yield self.store.get_user_ip_and_agents(user)
+
+        d = {}
+        for r in res:
+            device = d.setdefault(r["device_id"], {})
+            session = device.setdefault(r["access_token"], [])
+            session.append({
+                "ip": r["ip"],
+                "user_agent": r["user_agent"],
+                "last_seen": r["last_seen"],
+            })
+
+        ret = {
+            "user_id": user.to_string(),
+            "devices": [
+                {
+                    "device_id": k,
+                    "sessions": [
+                        {
+                            # "access_token": x, TODO (erikj)
+                            "connections": y,
+                        }
+                        for x, y in v.items()
+                    ]
+                }
+                for k, v in d.items()
+            ],
+        }
+
+        defer.returnValue(ret)
diff --git a/synapse/rest/__init__.py b/synapse/rest/__init__.py
index 3b9aa59733..e391e5678d 100644
--- a/synapse/rest/__init__.py
+++ b/synapse/rest/__init__.py
@@ -15,7 +15,8 @@
 
 
 from . import (
-    room, events, register, login, profile, presence, initial_sync, directory, voip
+    room, events, register, login, profile, presence, initial_sync, directory,
+    voip, admin,
 )
 
 
@@ -43,3 +44,4 @@ class RestServletFactory(object):
         initial_sync.register_servlets(hs, client_resource)
         directory.register_servlets(hs, client_resource)
         voip.register_servlets(hs, client_resource)
+        admin.register_servlets(hs, client_resource)
diff --git a/synapse/rest/admin.py b/synapse/rest/admin.py
new file mode 100644
index 0000000000..97eb1954e0
--- /dev/null
+++ b/synapse/rest/admin.py
@@ -0,0 +1,47 @@
+# -*- coding: utf-8 -*-
+# Copyright 2014 OpenMarket Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from twisted.internet import defer
+
+from synapse.api.errors import AuthError, SynapseError
+from base import RestServlet, client_path_pattern
+
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+class WhoisRestServlet(RestServlet):
+    PATTERN = client_path_pattern("/admin/whois/(?P<user_id>[^/]*)")
+
+    @defer.inlineCallbacks
+    def on_GET(self, request, user_id):
+        target_user = self.hs.parse_userid(user_id)
+        auth_user = yield self.auth.get_user_by_req(request)
+        is_admin = yield self.auth.is_server_admin(auth_user)
+
+        if not is_admin and target_user != auth_user:
+            raise AuthError(403, "You are not a server admin")
+
+        if not target_user.is_mine:
+            raise SynapseError(400, "Can only whois a local user")
+
+        ret = yield self.handlers.admin_handler.get_whois(auth_user)
+
+        defer.returnValue((200, ret))
+
+
+def register_servlets(hs, http_server):
+    WhoisRestServlet(hs).register(http_server)
diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py
index 169a80dce4..749347d5a8 100644
--- a/synapse/storage/__init__.py
+++ b/synapse/storage/__init__.py
@@ -294,18 +294,54 @@ class DataStore(RoomMemberStore, RoomStore,
 
         defer.returnValue(self.min_token)
 
-    def insert_client_ip(self, user, access_token, ip, user_agent):
+    def insert_client_ip(self, user, access_token, device_id, ip, user_agent):
         return self._simple_insert(
             "user_ips",
             {
                 "user": user.to_string(),
                 "access_token": access_token,
+                "device_id": device_id,
                 "ip": ip,
                 "user_agent": user_agent,
-                "last_used": int(self._clock.time()),
+                "last_seen": int(self._clock.time_msec()),
             }
         )
 
+    def get_user_ip_and_agents(self, user):
+        return self._simple_select_list(
+            table="user_ips",
+            keyvalues={"user": user.to_string()},
+            retcols=[
+                "device_id", "access_token", "ip", "user_agent", "last_seen"
+            ],
+        )
+
+        d = {}
+        for r in res:
+            device = d.setdefault(r["device_id"], {})
+            session = device.setdefault(r["access_token"], [])
+            session.append({
+                "ip": r["ip"],
+                "user_agent": r["user_agent"],
+                "last_seen": r["last_seen"],
+            })
+
+        defer.returnValue(
+            [
+                {
+                    "device_id": k,
+                    "sessions": [
+                        {
+                            "access_token": x,
+                            "connections": y,
+                        }
+                        for x, y in v.items()
+                    ]
+                }
+                for k, v in d.items()
+            ]
+        )
+
     def snapshot_room(self, room_id, user_id, state_type=None, state_key=None):
         """Snapshot the room for an update by a user
         Args:
diff --git a/synapse/storage/registration.py b/synapse/storage/registration.py
index f32b000cb6..cf43209367 100644
--- a/synapse/storage/registration.py
+++ b/synapse/storage/registration.py
@@ -88,7 +88,6 @@ class RegistrationStore(SQLBaseStore):
             query, user_id
         )
 
-    @defer.inlineCallbacks
     def get_user_by_token(self, token):
         """Get a user from the given access token.
 
@@ -99,11 +98,11 @@ class RegistrationStore(SQLBaseStore):
         Raises:
             StoreError if no user was found.
         """
-        user_id = yield self.runInteraction(self._query_for_auth,
-                                                     token)
-        defer.returnValue(user_id)
+        return self.runInteraction(
+            self._query_for_auth,
+            token
+        )
 
-    @defer.inlineCallbacks
     def is_server_admin(self, user):
         return self._simple_select_one_onecol(
             table="users",
@@ -112,11 +111,16 @@ class RegistrationStore(SQLBaseStore):
         )
 
     def _query_for_auth(self, txn, token):
-        txn.execute("SELECT users.name FROM access_tokens LEFT JOIN users" +
-                    " ON users.id = access_tokens.user_id WHERE token = ?",
-                    [token])
-        row = txn.fetchone()
-        if row:
-            return row[0]
+        sql = (
+            "SELECT users.name, users.admin, access_tokens.device_id "
+            "FROM users "
+            "INNER JOIN access_tokens on users.id = access_tokens.user_id "
+            "WHERE token = ?"
+        )
+
+        cursor = txn.execute(sql, (token,))
+        rows = self.cursor_to_dict(cursor)
+        if rows:
+            return rows[0]
 
         raise StoreError(404, "Token not found.")
diff --git a/synapse/storage/schema/delta/v5.sql b/synapse/storage/schema/delta/v5.sql
index f5a667a250..af9df11aa9 100644
--- a/synapse/storage/schema/delta/v5.sql
+++ b/synapse/storage/schema/delta/v5.sql
@@ -2,9 +2,10 @@
 CREATE TABLE IF NOT EXISTS user_ips (
     user TEXT NOT NULL,
     access_token TEXT NOT NULL,
+    device_id TEXT,
     ip TEXT NOT NULL,
     user_agent TEXT NOT NULL,
-    last_used INTEGER NOT NULL,
+    last_seen INTEGER NOT NULL,
     CONSTRAINT user_ip UNIQUE (user, access_token, ip, user_agent) ON CONFLICT REPLACE
 );
 
diff --git a/synapse/storage/schema/users.sql b/synapse/storage/schema/users.sql
index d96dd9f075..8244f733bd 100644
--- a/synapse/storage/schema/users.sql
+++ b/synapse/storage/schema/users.sql
@@ -34,9 +34,10 @@ CREATE TABLE IF NOT EXISTS access_tokens(
 CREATE TABLE IF NOT EXISTS user_ips (
     user TEXT NOT NULL,
     access_token TEXT NOT NULL,
+    device_id TEXT,
     ip TEXT NOT NULL,
     user_agent TEXT NOT NULL,
-    last_used INTEGER NOT NULL,
+    last_seen INTEGER NOT NULL,
     CONSTRAINT user_ip UNIQUE (user, access_token, ip, user_agent) ON CONFLICT REPLACE
 );