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-rw-r--r--synapse/app/synchrotron.py2
-rw-r--r--synapse/handlers/sync.py43
-rw-r--r--synapse/replication/slave/storage/deviceinbox.py30
-rw-r--r--synapse/rest/__init__.py2
-rw-r--r--synapse/rest/client/v2_alpha/sendtodevice.py84
-rw-r--r--synapse/rest/client/v2_alpha/sync.py9
-rw-r--r--synapse/storage/__init__.py5
-rw-r--r--synapse/storage/deviceinbox.py140
-rw-r--r--synapse/storage/schema/delta/34/device_inbox.sql24
-rw-r--r--synapse/streams/events.py2
-rw-r--r--synapse/types.py2
11 files changed, 339 insertions, 4 deletions
diff --git a/synapse/app/synchrotron.py b/synapse/app/synchrotron.py
index e3173533e2..b8cedc7af5 100644
--- a/synapse/app/synchrotron.py
+++ b/synapse/app/synchrotron.py
@@ -36,6 +36,7 @@ from synapse.replication.slave.storage.registration import SlavedRegistrationSto
 from synapse.replication.slave.storage.filtering import SlavedFilteringStore
 from synapse.replication.slave.storage.push_rule import SlavedPushRuleStore
 from synapse.replication.slave.storage.presence import SlavedPresenceStore
+from synapse.replication.slave.storage.deviceinbox import SlavedDeviceInboxStore
 from synapse.server import HomeServer
 from synapse.storage.client_ips import ClientIpStore
 from synapse.storage.engines import create_engine
@@ -72,6 +73,7 @@ class SynchrotronSlavedStore(
     SlavedRegistrationStore,
     SlavedFilteringStore,
     SlavedPresenceStore,
+    SlavedDeviceInboxStore,
     BaseSlavedStore,
     ClientIpStore,  # After BaseSlavedStore because the constructor is different
 ):
diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py
index 3017bc737b..91934b0c81 100644
--- a/synapse/handlers/sync.py
+++ b/synapse/handlers/sync.py
@@ -35,6 +35,7 @@ SyncConfig = collections.namedtuple("SyncConfig", [
     "filter_collection",
     "is_guest",
     "request_key",
+    "device_id",
 ])
 
 
@@ -113,6 +114,7 @@ class SyncResult(collections.namedtuple("SyncResult", [
     "joined",  # JoinedSyncResult for each joined room.
     "invited",  # InvitedSyncResult for each invited room.
     "archived",  # ArchivedSyncResult for each archived room.
+    "to_device",  # List of direct messages for the device.
 ])):
     __slots__ = []
 
@@ -126,7 +128,8 @@ class SyncResult(collections.namedtuple("SyncResult", [
             self.joined or
             self.invited or
             self.archived or
-            self.account_data
+            self.account_data or
+            self.to_device
         )
 
 
@@ -532,16 +535,53 @@ class SyncHandler(object):
             sync_result_builder, newly_joined_rooms, newly_joined_users
         )
 
+        yield self._generate_sync_entry_for_to_device(sync_result_builder)
+
         defer.returnValue(SyncResult(
             presence=sync_result_builder.presence,
             account_data=sync_result_builder.account_data,
             joined=sync_result_builder.joined,
             invited=sync_result_builder.invited,
             archived=sync_result_builder.archived,
+            to_device=sync_result_builder.to_device,
             next_batch=sync_result_builder.now_token,
         ))
 
     @defer.inlineCallbacks
+    def _generate_sync_entry_for_to_device(self, sync_result_builder):
+        """Generates the portion of the sync response. Populates
+        `sync_result_builder` with the result.
+
+        Args:
+            sync_result_builder(SyncResultBuilder)
+
+        Returns:
+            Deferred(dict): A dictionary containing the per room account data.
+        """
+        user_id = sync_result_builder.sync_config.user.to_string()
+        device_id = sync_result_builder.sync_config.device_id
+        now_token = sync_result_builder.now_token
+        since_stream_id = 0
+        if sync_result_builder.since_token is not None:
+            since_stream_id = int(sync_result_builder.since_token.to_device_key)
+
+        if since_stream_id:
+            logger.debug("Deleting messages up to %d", since_stream_id)
+            yield self.store.delete_messages_for_device(
+                user_id, device_id, since_stream_id
+            )
+
+        logger.debug("Getting messages up to %d", now_token.to_device_key)
+        messages, stream_id = yield self.store.get_new_messages_for_device(
+            user_id, device_id, now_token.to_device_key
+        )
+        logger.debug("Got messages up to %d: %r", stream_id, messages)
+        sync_result_builder.now_token = now_token.copy_and_replace(
+            "to_device_key", stream_id
+        )
+        sync_result_builder.to_device = messages
+
+    @defer.inlineCallbacks
     def _generate_sync_entry_for_account_data(self, sync_result_builder):
         """Generates the account data portion of the sync response. Populates
         `sync_result_builder` with the result.
@@ -1111,6 +1151,7 @@ class SyncResultBuilder(object):
         self.joined = []
         self.invited = []
         self.archived = []
+        self.device = []
 
 
 class RoomSyncResultBuilder(object):
diff --git a/synapse/replication/slave/storage/deviceinbox.py b/synapse/replication/slave/storage/deviceinbox.py
new file mode 100644
index 0000000000..7583d23708
--- /dev/null
+++ b/synapse/replication/slave/storage/deviceinbox.py
@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+# Copyright 2016 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 ._base import BaseSlavedStore
+from ._slaved_id_tracker import SlavedIdTracker
+from synapse.storage import DataStore
+
+
+class SlavedDeviceInboxStore(BaseSlavedStore):
+    def __init__(self, db_conn, hs):
+        super(SlavedDeviceInboxStore, self).__init__(db_conn, hs)
+        self._device_inbox_id_gen = SlavedIdTracker(
+            db_conn, "device_inbox", "stream_id",
+        )
+
+    get_to_device_stream_token = DataStore.get_to_device_stream_token.__func__
+    get_new_messages_for_device = DataStore.get_new_messages_for_device.__func__
+    delete_messages_for_device = DataStore.delete_messages_for_device.__func__
diff --git a/synapse/rest/__init__.py b/synapse/rest/__init__.py
index 326780405e..f9f5a3e077 100644
--- a/synapse/rest/__init__.py
+++ b/synapse/rest/__init__.py
@@ -49,6 +49,7 @@ from synapse.rest.client.v2_alpha import (
     notifications,
     devices,
     thirdparty,
+    sendtodevice,
 )
 
 from synapse.http.server import JsonResource
@@ -96,3 +97,4 @@ class ClientRestResource(JsonResource):
         notifications.register_servlets(hs, client_resource)
         devices.register_servlets(hs, client_resource)
         thirdparty.register_servlets(hs, client_resource)
+        sendtodevice.register_servlets(hs, client_resource)
diff --git a/synapse/rest/client/v2_alpha/sendtodevice.py b/synapse/rest/client/v2_alpha/sendtodevice.py
new file mode 100644
index 0000000000..00533741af
--- /dev/null
+++ b/synapse/rest/client/v2_alpha/sendtodevice.py
@@ -0,0 +1,84 @@
+# -*- coding: utf-8 -*-
+# Copyright 2016 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.
+
+import logging
+
+from twisted.internet import defer
+from synapse.http.servlet import parse_json_object_from_request
+
+from synapse.http import servlet
+from synapse.rest.client.v1.transactions import HttpTransactionStore
+from ._base import client_v2_patterns
+
+logger = logging.getLogger(__name__)
+
+
+class SendToDeviceRestServlet(servlet.RestServlet):
+    PATTERNS = client_v2_patterns(
+        "/sendToDevice/(?P<message_type>[^/]*)/(?P<txn_id>[^/]*)$",
+        releases=[], v2_alpha=False
+    )
+
+    def __init__(self, hs):
+        """
+        Args:
+            hs (synapse.server.HomeServer): server
+        """
+        super(SendToDeviceRestServlet, self).__init__()
+        self.hs = hs
+        self.auth = hs.get_auth()
+        self.store = hs.get_datastore()
+        self.is_mine_id = hs.is_mine_id
+        self.txns = HttpTransactionStore()
+
+    @defer.inlineCallbacks
+    def on_PUT(self, request, message_type, txn_id):
+        try:
+            defer.returnValue(
+                self.txns.get_client_transaction(request, txn_id)
+            )
+        except KeyError:
+            pass
+
+        requester = yield self.auth.get_user_by_req(request)
+
+        content = parse_json_object_from_request(request)
+
+        # TODO: Prod the notifier to wake up sync streams.
+        # TODO: Implement replication for the messages.
+        # TODO: Send the messages to remote servers if needed.
+
+        local_messages = {}
+        for user_id, by_device in content["messages"].items():
+            if self.is_mine_id(user_id):
+                messages_by_device = {
+                    device_id: {
+                        "content": message_content,
+                        "type": message_type,
+                        "sender": requester.user.to_string(),
+                    }
+                    for device_id, message_content in by_device.items()
+                }
+                local_messages[user_id] = messages_by_device
+
+        yield self.store.add_messages_to_device_inbox(local_messages)
+
+        response = (200, {})
+        self.txns.store_client_transaction(request, txn_id, response)
+        defer.returnValue(response)
+
+
+def register_servlets(hs, http_server):
+    SendToDeviceRestServlet(hs).register(http_server)
diff --git a/synapse/rest/client/v2_alpha/sync.py b/synapse/rest/client/v2_alpha/sync.py
index b11acdbea7..6fc63715aa 100644
--- a/synapse/rest/client/v2_alpha/sync.py
+++ b/synapse/rest/client/v2_alpha/sync.py
@@ -97,6 +97,7 @@ class SyncRestServlet(RestServlet):
             request, allow_guest=True
         )
         user = requester.user
+        device_id = requester.device_id
 
         timeout = parse_integer(request, "timeout", default=0)
         since = parse_string(request, "since")
@@ -109,12 +110,12 @@ class SyncRestServlet(RestServlet):
 
         logger.info(
             "/sync: user=%r, timeout=%r, since=%r,"
-            " set_presence=%r, filter_id=%r" % (
-                user, timeout, since, set_presence, filter_id
+            " set_presence=%r, filter_id=%r, device_id=%r" % (
+                user, timeout, since, set_presence, filter_id, device_id
             )
         )
 
-        request_key = (user, timeout, since, filter_id, full_state)
+        request_key = (user, timeout, since, filter_id, full_state, device_id)
 
         if filter_id:
             if filter_id.startswith('{'):
@@ -136,6 +137,7 @@ class SyncRestServlet(RestServlet):
             filter_collection=filter,
             is_guest=requester.is_guest,
             request_key=request_key,
+            device_id=device_id,
         )
 
         if since is not None:
@@ -173,6 +175,7 @@ class SyncRestServlet(RestServlet):
 
         response_content = {
             "account_data": {"events": sync_result.account_data},
+            "to_device": {"events": sync_result.to_device},
             "presence": self.encode_presence(
                 sync_result.presence, time_now
             ),
diff --git a/synapse/storage/__init__.py b/synapse/storage/__init__.py
index 7efc5bfeef..4f4c723c5b 100644
--- a/synapse/storage/__init__.py
+++ b/synapse/storage/__init__.py
@@ -36,6 +36,7 @@ from .push_rule import PushRuleStore
 from .media_repository import MediaRepositoryStore
 from .rejections import RejectionsStore
 from .event_push_actions import EventPushActionsStore
+from .deviceinbox import DeviceInboxStore
 
 from .state import StateStore
 from .signatures import SignatureStore
@@ -84,6 +85,7 @@ class DataStore(RoomMemberStore, RoomStore,
                 OpenIdStore,
                 ClientIpStore,
                 DeviceStore,
+                DeviceInboxStore,
                 ):
 
     def __init__(self, db_conn, hs):
@@ -108,6 +110,9 @@ class DataStore(RoomMemberStore, RoomStore,
         self._presence_id_gen = StreamIdGenerator(
             db_conn, "presence_stream", "stream_id"
         )
+        self._device_inbox_id_gen = StreamIdGenerator(
+            db_conn, "device_inbox", "stream_id"
+        )
 
         self._transaction_id_gen = IdGenerator(db_conn, "sent_transactions", "id")
         self._state_groups_id_gen = StreamIdGenerator(db_conn, "state_groups", "id")
diff --git a/synapse/storage/deviceinbox.py b/synapse/storage/deviceinbox.py
new file mode 100644
index 0000000000..e682fe1bd1
--- /dev/null
+++ b/synapse/storage/deviceinbox.py
@@ -0,0 +1,140 @@
+# -*- coding: utf-8 -*-
+# Copyright 2016 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.
+
+import logging
+import ujson
+
+from twisted.internet import defer
+
+from ._base import SQLBaseStore
+
+
+logger = logging.getLogger(__name__)
+
+
+class DeviceInboxStore(SQLBaseStore):
+
+    @defer.inlineCallbacks
+    def add_messages_to_device_inbox(self, messages_by_user_then_device):
+        """
+        Args:
+            messages_by_user_and_device(dict):
+                Dictionary of user_id to device_id to message.
+        Returns:
+            A deferred that resolves when the messages have been inserted.
+        """
+
+        def select_devices_txn(txn, user_id, devices):
+            if not devices:
+                return []
+            sql = (
+                "SELECT user_id, device_id FROM devices"
+                " WHERE user_id = ? AND device_id IN ("
+                + ",".join("?" * len(devices))
+                + ")"
+            )
+            # TODO: Maybe this needs to be done in batches if there are
+            # too many local devices for a given user.
+            args = [user_id] + devices
+            txn.execute(sql, args)
+            return [tuple(row) for row in txn.fetchall()]
+
+        def add_messages_to_device_inbox_txn(txn, stream_id):
+            local_users_and_devices = set()
+            for user_id, messages_by_device in messages_by_user_then_device.items():
+                local_users_and_devices.update(
+                    select_devices_txn(txn, user_id, messages_by_device.keys())
+                )
+
+            sql = (
+                "INSERT INTO device_inbox"
+                " (user_id, device_id, stream_id, message_json)"
+                " VALUES (?,?,?,?)"
+            )
+            rows = []
+            for user_id, messages_by_device in messages_by_user_then_device.items():
+                for device_id, message in messages_by_device.items():
+                    message_json = ujson.dumps(message)
+                    # Only insert into the local inbox if the device exists on
+                    # this server
+                    if (user_id, device_id) in local_users_and_devices:
+                        rows.append((user_id, device_id, stream_id, message_json))
+
+            txn.executemany(sql, rows)
+
+        with self._device_inbox_id_gen.get_next() as stream_id:
+            yield self.runInteraction(
+                "add_messages_to_device_inbox",
+                add_messages_to_device_inbox_txn,
+                stream_id
+            )
+
+    def get_new_messages_for_device(
+        self, user_id, device_id, current_stream_id, limit=100
+    ):
+        """
+        Args:
+            user_id(str): The recipient user_id.
+            device_id(str): The recipient device_id.
+            current_stream_id(int): The current position of the to device
+                message stream.
+        Returns:
+            Deferred ([dict], int): List of messages for the device and where
+                in the stream the messages got to.
+        """
+        def get_new_messages_for_device_txn(txn):
+            sql = (
+                "SELECT stream_id, message_json FROM device_inbox"
+                " WHERE user_id = ? AND device_id = ?"
+                " AND stream_id <= ?"
+                " ORDER BY stream_id ASC"
+                " LIMIT ?"
+            )
+            txn.execute(sql, (user_id, device_id, current_stream_id, limit))
+            messages = []
+            for row in txn.fetchall():
+                stream_pos = row[0]
+                messages.append(ujson.loads(row[1]))
+            if len(messages) < limit:
+                stream_pos = current_stream_id
+            return (messages, stream_pos)
+
+        return self.runInteraction(
+            "get_new_messages_for_device", get_new_messages_for_device_txn,
+        )
+
+    def delete_messages_for_device(self, user_id, device_id, up_to_stream_id):
+        """
+        Args:
+            user_id(str): The recipient user_id.
+            device_id(str): The recipient device_id.
+            up_to_stream_id(int): Where to delete messages up to.
+        Returns:
+            A deferred that resolves when the messages have been deleted.
+        """
+        def delete_messages_for_device_txn(txn):
+            sql = (
+                "DELETE FROM device_inbox"
+                " WHERE user_id = ? AND device_id = ?"
+                " AND stream_id <= ?"
+            )
+            txn.execute(sql, (user_id, device_id, up_to_stream_id))
+
+        return self.runInteraction(
+            "delete_messages_for_device", delete_messages_for_device_txn
+        )
+
+    def get_to_device_stream_token(self):
+        return self._device_inbox_id_gen.get_current_token()
diff --git a/synapse/storage/schema/delta/34/device_inbox.sql b/synapse/storage/schema/delta/34/device_inbox.sql
new file mode 100644
index 0000000000..e68844c74a
--- /dev/null
+++ b/synapse/storage/schema/delta/34/device_inbox.sql
@@ -0,0 +1,24 @@
+/* Copyright 2016 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.
+ */
+
+CREATE TABLE device_inbox (
+    user_id TEXT NOT NULL,
+    device_id TEXT NOT NULL,
+    stream_id BIGINT NOT NULL,
+    message_json TEXT NOT NULL -- {"type":, "sender":, "content",}
+);
+
+CREATE INDEX device_inbox_user_stream_id ON device_inbox(user_id, device_id, stream_id);
+CREATE INDEX device_inbox_stream_id ON device_inbox(stream_id);
diff --git a/synapse/streams/events.py b/synapse/streams/events.py
index d4c0bb6732..6bf21d6f5e 100644
--- a/synapse/streams/events.py
+++ b/synapse/streams/events.py
@@ -43,6 +43,7 @@ class EventSources(object):
     @defer.inlineCallbacks
     def get_current_token(self, direction='f'):
         push_rules_key, _ = self.store.get_push_rules_stream_token()
+        to_device_key = self.store.get_to_device_stream_token()
 
         token = StreamToken(
             room_key=(
@@ -61,5 +62,6 @@ class EventSources(object):
                 yield self.sources["account_data"].get_current_key()
             ),
             push_rules_key=push_rules_key,
+            to_device_key=to_device_key,
         )
         defer.returnValue(token)
diff --git a/synapse/types.py b/synapse/types.py
index 5349b0c450..9d64e8c4de 100644
--- a/synapse/types.py
+++ b/synapse/types.py
@@ -154,6 +154,7 @@ class StreamToken(
         "receipt_key",
         "account_data_key",
         "push_rules_key",
+        "to_device_key",
     ))
 ):
     _SEPARATOR = "_"
@@ -190,6 +191,7 @@ class StreamToken(
             or (int(other.receipt_key) < int(self.receipt_key))
             or (int(other.account_data_key) < int(self.account_data_key))
             or (int(other.push_rules_key) < int(self.push_rules_key))
+            or (int(other.to_device_key) < int(self.to_device_key))
         )
 
     def copy_and_advance(self, key, new_value):