Add initial sync event implementation.

matrix/api.py

@@ -289,6 +289,11 @@ class MatrixSyncMessage(MatrixMessage):
 
         MatrixMessage.__init__(self, MessageType.SYNC, client.sync, data)
 
+    def decode_body(self, server):
+        object_hook = partial(MatrixEvents.MatrixSyncEvent.from_dict, server)
+
+        return self._decode(server, object_hook)
+
 
 class MatrixSendMessage(MatrixMessage):
 
@@ -448,19 +453,3 @@ class MatrixUser:
         self.power_level = 0  # type: int
         self.nick_color = ""  # type: str
         self.prefix = ""  # type: str
-
-
-class MatrixRoom:
-
-    def __init__(self, room_id):
-        # type: (str) -> None
-        # yapf: disable
-        self.room_id = room_id  # type: str
-        self.alias = room_id    # type: str
-        self.topic = ""         # type: str
-        self.topic_author = ""  # type: str
-        self.topic_date = None  # type: datetime.datetime
-        self.prev_batch = ""    # type: str
-        self.users = dict()     # type: Dict[str, MatrixUser]
-        self.encrypted = False  # type: bool
-        # yapf: enable

matrix/events.py

@@ -27,9 +27,10 @@ from matrix.utils import (
     date_from_age,
     sender_to_nick_and_color,
     tags_for_message,
-    add_event_tags
+    add_event_tags,
 )
 from matrix.colors import Formatted
+from matrix.rooms import matrix_create_room_buffer
 
 
 def sanitize_token(string):
@@ -91,17 +92,13 @@ def sanitize_text(string):
     if not isinstance(string, str):
         raise TypeError
 
-    remap = {
+    remap = {ord('\b'): None, ord('\f'): None, ord('\r'): None, ord('\0'): None}
-        ord('\b'): None,
-        ord('\f'): None,
-        ord('\r'): None,
-        ord('\0'): None
-    }
 
     return string.translate(remap)
 
 
 class MatrixEvent():
+
     def __init__(self, server):
         self.server = server
 
@@ -110,6 +107,7 @@ class MatrixEvent():
 
 
 class MatrixErrorEvent(MatrixEvent):
+
     def __init__(self, server, error_message, fatal=False):
         self.error_message = error_message
         self.fatal = fatal
@@ -117,8 +115,7 @@ class MatrixErrorEvent(MatrixEvent):
 
     def execute(self):
         message = ("{prefix}matrix: {error}").format(
-            prefix=W.prefix("error"),
+            prefix=W.prefix("error"), error=self.error_message)
-            error=self.error_message)
 
         W.prnt(self.server.server_buffer, message)
 
@@ -129,22 +126,17 @@ class MatrixErrorEvent(MatrixEvent):
     def from_dict(cls, server, error_prefix, fatal, parsed_dict):
         try:
             message = "{prefix}: {error}".format(
-                prefix=error_prefix,
+                prefix=error_prefix, error=parsed_dict["error"])
-                error=parsed_dict["error"])
+            return cls(server, message, fatal=fatal)
-            return cls(
-                server,
-                message,
-                fatal=fatal
-            )
         except KeyError:
             return cls(
-                server,
+                server, ("{prefix}: Invalid JSON response "
-                ("{prefix}: Invalid JSON response "
                          "from server.").format(prefix=error_prefix),
                 fatal=fatal)
 
 
 class MatrixLoginEvent(MatrixEvent):
+
     def __init__(self, server, user_id, access_token):
         self.user_id = user_id
         self.access_token = access_token
@@ -160,21 +152,15 @@ class MatrixLoginEvent(MatrixEvent):
     @classmethod
     def from_dict(cls, server, parsed_dict):
         try:
-            return cls(
+            return cls(server, sanitize_id(parsed_dict["user_id"]),
-                server,
+                       sanitize_token(parsed_dict["access_token"]))
-                sanitize_id(parsed_dict["user_id"]),
-                sanitize_token(parsed_dict["access_token"])
-            )
         except (KeyError, TypeError, ValueError):
-            return MatrixErrorEvent.from_dict(
+            return MatrixErrorEvent.from_dict(server, "Error logging in", True,
-                server,
+                                              parsed_dict)
-                "Error logging in",
-                True,
-                parsed_dict
-            )
 
 
 class MatrixSendEvent(MatrixEvent):
+
     def __init__(self, server, room_id, event_id, message):
         self.room_id = room_id
         self.event_id = event_id
@@ -208,22 +194,15 @@ class MatrixSendEvent(MatrixEvent):
     @classmethod
     def from_dict(cls, server, room_id, message, parsed_dict):
         try:
-            return cls(
+            return cls(server, room_id, sanitize_id(parsed_dict["event_id"]),
-                server,
+                       message)
-                room_id,
-                sanitize_id(parsed_dict["event_id"]),
-                message
-            )
         except (KeyError, TypeError, ValueError):
-            return MatrixErrorEvent.from_dict(
+            return MatrixErrorEvent.from_dict(server, "Error sending message",
-                server,
+                                              False, parsed_dict)
-                "Error sending message",
-                False,
-                parsed_dict
-            )
 
 
 class MatrixTopicEvent(MatrixEvent):
+
     def __init__(self, server, room_id, event_id, topic):
         self.room_id = room_id
         self.topic = topic
@@ -233,22 +212,15 @@ class MatrixTopicEvent(MatrixEvent):
     @classmethod
     def from_dict(cls, server, room_id, topic, parsed_dict):
         try:
-            return cls(
+            return cls(server, room_id, sanitize_id(parsed_dict["event_id"]),
-                server,
+                       topic)
-                room_id,
-                sanitize_id(parsed_dict["event_id"]),
-                topic
-            )
         except (KeyError, TypeError, ValueError):
-            return MatrixErrorEvent.from_dict(
+            return MatrixErrorEvent.from_dict(server, "Error setting topic",
-                server,
+                                              False, parsed_dict)
-                "Error setting topic",
-                False,
-                parsed_dict
-            )
 
 
 class MatrixRedactEvent(MatrixEvent):
+
     def __init__(self, server, room_id, event_id, reason):
         self.room_id = room_id
         self.topic = reason
@@ -258,22 +230,15 @@ class MatrixRedactEvent(MatrixEvent):
     @classmethod
     def from_dict(cls, server, room_id, reason, parsed_dict):
         try:
-            return cls(
+            return cls(server, room_id, sanitize_id(parsed_dict["event_id"]),
-                server,
+                       reason)
-                room_id,
-                sanitize_id(parsed_dict["event_id"]),
-                reason
-            )
         except (KeyError, TypeError, ValueError):
-            return MatrixErrorEvent.from_dict(
+            return MatrixErrorEvent.from_dict(server, "Error redacting message",
-                server,
+                                              False, parsed_dict)
-                "Error redacting message",
-                False,
-                parsed_dict
-            )
 
 
 class MatrixJoinEvent(MatrixEvent):
+
     def __init__(self, server, room, room_id):
         self.room = room
         self.room_id = room_id
@@ -288,15 +253,12 @@ class MatrixJoinEvent(MatrixEvent):
                 sanitize_id(parsed_dict["room_id"]),
             )
         except (KeyError, TypeError, ValueError):
-            return MatrixErrorEvent.from_dict(
+            return MatrixErrorEvent.from_dict(server, "Error joining room",
-                server,
+                                              False, parsed_dict)
-                "Error joining room",
-                False,
-                parsed_dict
-            )
 
 
 class MatrixPartEvent(MatrixEvent):
+
     def __init__(self, server, room_id):
         self.room_id = room_id
         MatrixEvent.__init__(self, server)
@@ -305,21 +267,16 @@ class MatrixPartEvent(MatrixEvent):
     def from_dict(cls, server, room_id, parsed_dict):
         try:
             if parsed_dict == {}:
-                return cls(
+                return cls(server, room_id)
-                    server,
-                    room_id)
 
             raise KeyError
         except KeyError:
-            return MatrixErrorEvent.from_dict(
+            return MatrixErrorEvent.from_dict(server, "Error leaving room",
-                server,
+                                              False, parsed_dict)
-                "Error leaving room",
-                False,
-                parsed_dict
-            )
 
 
 class MatrixInviteEvent(MatrixEvent):
+
     def __init__(self, server, room_id, user_id):
         self.room_id = room_id
         self.user_id = user_id
@@ -329,22 +286,16 @@ class MatrixInviteEvent(MatrixEvent):
     def from_dict(cls, server, room_id, user_id, parsed_dict):
         try:
             if parsed_dict == {}:
-                return cls(
+                return cls(server, room_id, user_id)
-                    server,
-                    room_id,
-                    user_id)
 
             raise KeyError
         except KeyError:
-            return MatrixErrorEvent.from_dict(
+            return MatrixErrorEvent.from_dict(server, "Error inviting user",
-                server,
+                                              False, parsed_dict)
-                "Error inviting user",
-                False,
-                parsed_dict
-            )
 
 
 class MatrixBacklogEvent(MatrixEvent):
+
     def __init__(self, server, room_id, end_token, messages):
         self.room_id = room_id
         self.end_token = end_token
@@ -369,30 +320,19 @@ class MatrixBacklogEvent(MatrixEvent):
 
             end_token = sanitize_id(parsed_dict["end"])
 
-            message_func = partial(
+            message_func = partial(MatrixBacklogEvent._message_from_event,
-                MatrixBacklogEvent._message_from_event,
+                                   room_id)
-                room_id
-            )
 
-            message_events = list(filter(
+            message_events = list(
-                lambda event: event["type"] == "m.room.message",
+                filter(lambda event: event["type"] == "m.room.message",
-                parsed_dict["chunk"]
+                       parsed_dict["chunk"]))
-            ))
 
             messages = [message_func(m) for m in message_events]
 
-            return cls(
+            return cls(server, room_id, end_token, messages)
-                server,
-                room_id,
-                end_token,
-                messages)
         except (KeyError, ValueError, TypeError):
-            return MatrixErrorEvent.from_dict(
+            return MatrixErrorEvent.from_dict(server, "Error fetching backlog",
-                server,
+                                              False, parsed_dict)
-                "Error fetching backlog",
-                False,
-                parsed_dict
-            )
 
     def execute(self):
         room = self.server.rooms[self.room_id]
@@ -405,7 +345,119 @@ class MatrixBacklogEvent(MatrixEvent):
         room.prev_batch = self.end_token
 
 
+class MatrixSyncEvent(MatrixEvent):
+
+    def __init__(self, server, next_batch, room_infos, invited_infos):
+        self.next_batch = next_batch
+        self.joined_room_infos = room_infos
+        self.invited_room_infos = invited_infos
+
+        MatrixEvent.__init__(self, server)
+
+    @staticmethod
+    def _infos_from_dict(parsed_dict):
+        join_infos = []
+        invite_infos = []
+
+        for room_id, room_dict in parsed_dict['join'].items():
+            if not room_id:
+                continue
+
+            join_infos.append(RoomInfo.from_dict(room_id, room_dict))
+
+        return (join_infos, invite_infos)
+
+    @classmethod
+    def from_dict(cls, server, parsed_dict):
+        try:
+            next_batch = parsed_dict["next_batch"]
+            room_info_dict = parsed_dict["rooms"]
+
+            join_infos, invite_infos = MatrixSyncEvent._infos_from_dict(
+                room_info_dict)
+
+            return cls(server, next_batch, join_infos, invite_infos)
+        except (KeyError, ValueError, TypeError):
+            return MatrixErrorEvent.from_dict(server, "Error syncing", False,
+                                              parsed_dict)
+
+    def _execute_joined_info(self, info):
+        server = self.server
+
+        if info.room_id not in server.buffers:
+            matrix_create_room_buffer(server, info.room_id)
+
+        room = server.rooms[info.room_id]
+        buf = server.buffers[info.room_id]
+
+        if not room.prev_batch:
+            room.prev_batch = info.prev_batch
+
+        tags = tags_for_message("message")
+        for message in info.events:
+            message.prnt(room, buf, tags)
+
+    def execute(self):
+        server = self.server
+
+        # we got the same batch again, nothing to do
+        if self.next_batch == server.next_batch:
+            server.sync()
+            return
+
+        map(self._execute_joined_info, self.joined_room_infos)
+
+        server.next_batch = self.next_batch
+        server.sync()
+
+
+class RoomInfo():
+
+    def __init__(self, room_id, prev_batch, events):
+        # type: (str, str, List[Any]) -> None
+        self.room_id = room_id
+        self.prev_batch = prev_batch
+        self.events = events
+
+    @staticmethod
+    def _message_from_event(event):
+        # The transaction id will only be present for events that are send out from
+        # this client, since we print out our own messages as soon as we get a
+        # receive confirmation from the server we don't care about our own messages
+        # in a sync event. More info under:
+        # https://github.com/matrix-org/matrix-doc/blob/master/api/client-server/definitions/event.yaml#L53
+        if "transaction_id" in event["unsigned"]:
+            return None
+
+        if "redacted_by" in event["unsigned"]:
+            return RedactedMessage.from_dict(event)
+
+        return Message.from_dict(event)
+
+    @staticmethod
+    def _event_from_dict(event):
+        if event['type'] == 'm.room.message':
+            return RoomInfo._message_from_event(event)
+
+    @classmethod
+    def from_dict(cls, room_id, parsed_dict):
+        prev_batch = sanitize_id(parsed_dict['timeline']['prev_batch'])
+
+        events = []
+
+        state_dict = parsed_dict['state']['events']
+        timeline_dict = parsed_dict['timeline']['events']
+
+        for event in timeline_dict:
+            events.append(RoomInfo._event_from_dict(event))
+
+        filtered_events = list(filter(None, events))
+
+        return cls(room_id, prev_batch, filtered_events)
+
+
 class AbstractMessage():
+
     def __init__(self, event_id, sender, age):
         self.event_id = event_id
         self.sender = sender
@@ -413,6 +465,7 @@ class AbstractMessage():
 
 
 class RedactedMessage(AbstractMessage):
+
     def __init__(self, event_id, sender, age, censor, reason=None):
         self.censor = censor
         self.reason = reason
@@ -424,8 +477,7 @@ class RedactedMessage(AbstractMessage):
         sender = sanitize_id(event["sender"])
         age = event["unsigned"]["age"]
 
-        censor = sanitize_id(
+        censor = sanitize_id(event['unsigned']['redacted_because']['sender'])
-            event['unsigned']['redacted_because']['sender'])
         reason = None
 
         if 'reason' in event['unsigned']['redacted_because']['content']:
@@ -439,12 +491,7 @@ class RedactedMessage(AbstractMessage):
         color = color_for_tags(color_name)
         date = date_from_age(self.age)
 
-        event_tags = add_event_tags(
+        event_tags = add_event_tags(self.event_id, nick, color, tags)
-            self.event_id,
-            nick,
-            color,
-            tags
-        )
 
         reason = (", reason: \"{reason}\"".format(reason=self.reason)
                   if self.reason else "")
@@ -469,14 +516,8 @@ class RedactedMessage(AbstractMessage):
 
 
 class Message(AbstractMessage):
-    def __init__(
+
-            self,
+    def __init__(self, event_id, sender, age, message, formatted_message=None):
-            event_id,
-            sender,
-            age,
-            message,
-            formatted_message=None
-    ):
         self.message = message
         self.formatted_message = formatted_message
         AbstractMessage.__init__(self, event_id, sender, age)
@@ -502,19 +543,13 @@ class Message(AbstractMessage):
         return cls(event_id, sender, age, msg, formatted_msg)
 
     def prnt(self, room, buff, tags):
-        msg = (self.formatted_message.to_weechat() if
+        msg = (self.formatted_message.to_weechat()
-               self.formatted_message
+               if self.formatted_message else self.message)
-               else self.message)
 
         nick, color_name = sender_to_nick_and_color(room, self.sender)
         color = color_for_tags(color_name)
 
-        event_tags = add_event_tags(
+        event_tags = add_event_tags(self.event_id, nick, color, tags)
-            self.event_id,
-            nick,
-            color,
-            tags
-        )
 
         tags_string = ",".join(event_tags)
 

matrix/messages.py

@@ -28,18 +28,12 @@ from matrix.colors import Formatted
 
 from matrix.globals import W, OPTIONS
 
-from matrix.api import (
+from matrix.api import (MessageType, MatrixUser)
-    MessageType,
-    MatrixRoom,
-    MatrixUser
-)
 
-from matrix.utils import (
+from matrix.rooms import MatrixRoom
-    server_buffer_prnt,
+
-    tags_from_line_data,
+from matrix.utils import (server_buffer_prnt, tags_from_line_data, prnt_debug,
-    prnt_debug,
+                          color_for_tags)
-    color_for_tags
-)
 from matrix.plugin_options import RedactType, DebugType
 
 
@@ -60,26 +54,14 @@ def add_user_to_nicklist(buf, user):
 
     group = W.nicklist_search_group(buf, "", group_name)
     # TODO make it configurable so we can use a display name or user_id here
-    W.nicklist_add_nick(
+    W.nicklist_add_nick(buf, group, user.display_name, user.nick_color,
-        buf,
+                        user.prefix, get_prefix_color(user.prefix), 1)
-        group,
-        user.display_name,
-        user.nick_color,
-        user.prefix,
-        get_prefix_color(user.prefix),
-        1
-    )
 
 
 def matrix_create_room_buffer(server, room_id):
     # type: (MatrixServer, str) -> None
-    buf = W.buffer_new(
+    buf = W.buffer_new(room_id, "room_input_cb", server.name, "room_close_cb",
-        room_id,
+                       server.name)
-        "room_input_cb",
-        server.name,
-        "room_close_cb",
-        server.name
-    )
 
     W.buffer_set(buf, "localvar_set_type", 'channel')
     W.buffer_set(buf, "type", 'formatted')
@@ -142,9 +124,7 @@ def matrix_handle_room_members(server, room_id, event):
 
         if full_name == server.user_id:
             user.nick_color = "weechat.color.chat_nick_self"
-            W.buffer_set(
+            W.buffer_set(buf, "highlight_words",
-                buf,
-                "highlight_words",
                          ",".join([full_name, user.name, user.display_name]))
         else:
             user.nick_color = W.info_get("nick_color_name", user.name)
@@ -346,8 +326,7 @@ def matrix_redact_line(data, tags, event):
 
     tags.append("matrix_new_redacted")
 
-    new_data = {'tags_array': ','.join(tags),
+    new_data = {'tags_array': ','.join(tags), 'message': message}
-                'message': message}
 
     W.hdata_update(hdata_line_data, data, new_data)
 
@@ -363,11 +342,7 @@ def matrix_handle_room_redaction(server, room_id, event):
     if own_lines:
         hdata_line = W.hdata_get('line')
 
-        line = W.hdata_pointer(
+        line = W.hdata_pointer(W.hdata_get('lines'), own_lines, 'last_line')
-            W.hdata_get('lines'),
-            own_lines,
-            'last_line'
-        )
 
         while line:
             data = W.hdata_pointer(hdata_line, line, 'data')
@@ -501,11 +476,11 @@ def matrix_handle_room_events(server, room_id, room_events):
             matrix_handle_room_power_levels(server, room_id, event)
 
         # These events are unimportant for us.
-        elif event["type"] in ["m.room.create", "m.room.join_rules",
+        elif event["type"] in [
-                               "m.room.history_visibility",
+                "m.room.create", "m.room.join_rules",
-                               "m.room.canonical_alias",
+                "m.room.history_visibility", "m.room.canonical_alias",
-                               "m.room.guest_access",
+                "m.room.guest_access", "m.room.third_party_invite"
-                               "m.room.third_party_invite"]:
+        ]:
             pass
 
         elif event["type"] == "m.room.name":
@@ -538,8 +513,7 @@ def matrix_handle_room_events(server, room_id, room_events):
         else:
             message = ("{prefix}Handling of room event type "
                        "{type} not implemented").format(
-                           type=event['type'],
+                           type=event['type'], prefix=W.prefix("error"))
-                           prefix=W.prefix("error"))
             W.prnt(server.server_buffer, message)
 
 
@@ -582,11 +556,8 @@ def matrix_handle_room_info(server, room_info):
         matrix_handle_room_events(server, room_id, room['timeline']['events'])
 
     for room_id, room in room_info['invite'].items():
-        matrix_handle_invite_events(
+        matrix_handle_invite_events(server, room_id,
-            server,
+                                    room['invite_state']['events'])
-            room_id,
-            room['invite_state']['events']
-        )
 
 
 def matrix_sort_old_messages(server, room_id):
@@ -598,11 +569,7 @@ def matrix_sort_old_messages(server, room_id):
     if own_lines:
         hdata_line = W.hdata_get('line')
         hdata_line_data = W.hdata_get('line_data')
-        line = W.hdata_pointer(
+        line = W.hdata_pointer(W.hdata_get('lines'), own_lines, 'first_line')
-            W.hdata_get('lines'),
-            own_lines,
-            'first_line'
-        )
 
         while line:
             data = W.hdata_pointer(hdata_line, line, 'data')
@@ -611,18 +578,18 @@ def matrix_sort_old_messages(server, room_id):
 
             if data:
                 date = W.hdata_time(hdata_line_data, data, 'date')
-                print_date = W.hdata_time(hdata_line_data, data,
+                print_date = W.hdata_time(hdata_line_data, data, 'date_printed')
-                                          'date_printed')
                 tags = tags_from_line_data(data)
                 prefix = W.hdata_string(hdata_line_data, data, 'prefix')
-                message = W.hdata_string(hdata_line_data, data,
+                message = W.hdata_string(hdata_line_data, data, 'message')
-                                         'message')
 
-                line_data = {'date': date,
+                line_data = {
+                    'date': date,
                     'date_printed': print_date,
                     'tags_array': ','.join(tags),
                     'prefix': prefix,
-                             'message': message}
+                    'message': message
+                }
 
                 lines.append(line_data)
 
@@ -645,11 +612,7 @@ def matrix_update_buffer_lines(new_lines, own_lines):
     hdata_line = W.hdata_get('line')
     hdata_line_data = W.hdata_get('line_data')
 
-    line = W.hdata_pointer(
+    line = W.hdata_pointer(W.hdata_get('lines'), own_lines, 'first_line')
-        W.hdata_get('lines'),
-        own_lines,
-        'first_line'
-    )
 
     while line:
         data = W.hdata_pointer(hdata_line, line, 'data')
@@ -702,20 +665,8 @@ def matrix_handle_message(
         matrix_sort_old_messages(server, message.room_id)
 
     elif message_type is MessageType.SYNC:
-        next_batch = response['next_batch']
+        event = message.event
-
+        event.execute()
-        # we got the same batch again, nothing to do
-        if next_batch == server.next_batch:
-            server.sync()
-            return
-
-        room_info = response['rooms']
-        matrix_handle_room_info(server, room_info)
-
-        server.next_batch = next_batch
-
-        # TODO add a delay to this
-        server.sync()
 
     else:
         server_buffer_prnt(
@@ -737,8 +688,7 @@ def handle_http_response(server, message):
             # TODO try to resend the message if decoding has failed?
             message = ("{prefix}matrix: Error decoding json response from "
                        "server: {error}").format(
-                           prefix=W.prefix("error"),
+                           prefix=W.prefix("error"), error=error)
-                           error=error)
 
             W.prnt(server.server_buffer, message)
             return
@@ -805,11 +755,9 @@ def handle_http_response(server, message):
 
     else:
         server_buffer_prnt(
-            server,
+            server, ("{prefix}Unhandled {status_code} error, please inform "
-            ("{prefix}Unhandled {status_code} error, please inform "
                      "the developers about this.").format(
-                 prefix=W.prefix("error"),
+                         prefix=W.prefix("error"), status_code=status_code))
-                 status_code=status_code))
 
         server_buffer_prnt(server, pprint.pformat(message.type))
         server_buffer_prnt(server, pprint.pformat(message.request.payload))
@@ -828,7 +776,8 @@ def handle_http_response(server, message):
                         s=(message.send_time - message.creation_time) * 1000,
                         r=(message.receive_time - message.send_time) * 1000,
                         h=(done_time - message.receive_time) * 1000,
-                        total=(done_time - message.creation_time) * 1000,)
+                        total=(done_time - message.creation_time) * 1000,
+                    )
     prnt_debug(DebugType.TIMING, server, info_message)
 
     return

matrix/rooms.py

@@ -0,0 +1,65 @@
+# -*- coding: utf-8 -*-
+
+# Copyright © 2018 Damir Jelić <poljar@termina.org.uk>
+#
+# Permission to use, copy, modify, and/or distribute this software for
+# any purpose with or without fee is hereby granted, provided that the
+# above copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+# SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+# CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+from __future__ import unicode_literals
+
+from matrix.globals import W
+from matrix.utils import strip_matrix_server
+
+
+class MatrixRoom:
+
+    def __init__(self, room_id):
+        # type: (str) -> None
+        # yapf: disable
+        self.room_id = room_id  # type: str
+        self.alias = room_id    # type: str
+        self.topic = ""         # type: str
+        self.topic_author = ""  # type: str
+        self.topic_date = None  # type: datetime.datetime
+        self.prev_batch = ""    # type: str
+        self.users = dict()     # type: Dict[str, MatrixUser]
+        self.encrypted = False  # type: bool
+        # yapf: enable
+
+
+def matrix_create_room_buffer(server, room_id):
+    # type: (MatrixServer, str) -> None
+    buf = W.buffer_new(room_id, "room_input_cb", server.name, "room_close_cb",
+                       server.name)
+
+    W.buffer_set(buf, "localvar_set_type", 'channel')
+    W.buffer_set(buf, "type", 'formatted')
+
+    W.buffer_set(buf, "localvar_set_channel", room_id)
+
+    W.buffer_set(buf, "localvar_set_nick", server.user)
+
+    W.buffer_set(buf, "localvar_set_server", server.name)
+
+    short_name = strip_matrix_server(room_id)
+    W.buffer_set(buf, "short_name", short_name)
+
+    W.nicklist_add_group(buf, '', "000|o", "weechat.color.nicklist_group", 1)
+    W.nicklist_add_group(buf, '', "001|h", "weechat.color.nicklist_group", 1)
+    W.nicklist_add_group(buf, '', "002|v", "weechat.color.nicklist_group", 1)
+    W.nicklist_add_group(buf, '', "999|...", "weechat.color.nicklist_group", 1)
+
+    W.buffer_set(buf, "nicklist", "1")
+    W.buffer_set(buf, "nicklist_display_groups", "0")
+
+    server.buffers[room_id] = buf
+    server.rooms[room_id] = MatrixRoom(room_id)