Merge branch 'develop' into paul/schema_breaking_changes

docs/client-server/OLD_specification.rst

@@ -2,6 +2,20 @@
 Matrix Client-Server API
 ========================
 
+
+.. WARNING::
+  This specification is old. Please see /docs/specification.rst instead.
+
+
+
+
+
+
+
+
+
+
+
 The following specification outlines how a client can send and receive data from 
 a home server.
 

docs/specification.rst

@@ -30,45 +30,49 @@ ecosystem to communicate with one another.
 
 The principles that Matrix attempts to follow are:
 
- - Pragmatic Web-friendly APIs (i.e. JSON over REST)
- - Keep It Simple & Stupid
+- Pragmatic Web-friendly APIs (i.e. JSON over REST)
+- Keep It Simple & Stupid
 
   + provide a simple architecture with minimal third-party dependencies.
 
- - Fully open:
+- Fully open:
 
-   + Fully open federation - anyone should be able to participate in the global Matrix network
-   + Fully open standard - publicly documented standard with no IP or patent licensing encumbrances
-   + Fully open source reference implementation - liberally-licensed example implementations with no
-     IP or patent licensing encumbrances
+  + Fully open federation - anyone should be able to participate in the global
+    Matrix network
+  + Fully open standard - publicly documented standard with no IP or patent
+    licensing encumbrances
+  + Fully open source reference implementation - liberally-licensed example
+    implementations with no IP or patent licensing encumbrances
 
- - Empowering the end-user
+- Empowering the end-user
 
   + The user should be able to choose the server and clients they use
   + The user should be control how private their communication is
   + The user should know precisely where their data is stored
 
- - Fully decentralised - no single points of control over conversations or the network as a whole
- - Learning from history to avoid repeating it
+- Fully decentralised - no single points of control over conversations or the
+  network as a whole
+- Learning from history to avoid repeating it
 
-   + Trying to take the best aspects of XMPP, SIP, IRC, SMTP, IMAP and NNTP whilst trying to avoid their failings
+  + Trying to take the best aspects of XMPP, SIP, IRC, SMTP, IMAP and NNTP
+    whilst trying to avoid their failings
 
 The functionality that Matrix provides includes:
 
- - Creation and management of fully distributed chat rooms with no
+- Creation and management of fully distributed chat rooms with no
   single points of control or failure
- - Eventually-consistent cryptographically secure synchronisation of room 
+- Eventually-consistent cryptographically secure synchronisation of room
   state across a global open network of federated servers and services
- - Sending and receiving extensible messages in a room with (optional)
+- Sending and receiving extensible messages in a room with (optional)
   end-to-end encryption
- - Extensible user management (inviting, joining, leaving, kicking, banning)
+- Extensible user management (inviting, joining, leaving, kicking, banning)
   mediated by a power-level based user privilege system.
- - Extensible room state management (room naming, aliasing, topics, bans)
- - Extensible user profile management (avatars, displaynames, etc)
- - Managing user accounts (registration, login, logout)
- - Use of 3rd Party IDs (3PIDs) such as email addresses, phone numbers,
+- Extensible room state management (room naming, aliasing, topics, bans)
+- Extensible user profile management (avatars, displaynames, etc)
+- Managing user accounts (registration, login, logout)
+- Use of 3rd Party IDs (3PIDs) such as email addresses, phone numbers,
   Facebook accounts to authenticate, identify and discover users on Matrix.
- - Trusted federation of Identity servers for:
+- Trusted federation of Identity servers for:
 
   + Publishing user public keys for PKI
   + Mapping of 3PIDs to Matrix IDs
@@ -1507,6 +1511,31 @@ Each transaction has:
  - A list of "previous IDs".
  - A list of PDUs and EDUs - the actual message payload that the Transaction carries.
  
+``origin``
+  Type: 
+    String
+  Description:
+    DNS name of homeserver making this transaction.
+    
+``ts``
+  Type: 
+    Integer
+  Description:
+    Timestamp in milliseconds on originating homeserver when this transaction 
+    started.
+    
+``previous_ids``
+  Type:
+    List of strings
+  Description:
+    List of transactions that were sent immediately prior to this transaction.
+    
+``pdus``
+  Type:
+    List of Objects.
+  Description:
+    List of updates contained in this transaction.
+
 ::
 
  {
@@ -1547,8 +1576,98 @@ All PDUs have:
  - A list of other PDU IDs that have been seen recently on that context (regardless of which origin
    sent them)
 
-[[TODO(paul): Update this structure so that 'pdu_id' is a two-element
-[origin,ref] pair like the prev_pdus are]]
+``context``
+  Type:
+    String
+  Description:
+    Event context identifier
+    
+``origin``
+  Type:
+    String
+  Description:
+    DNS name of homeserver that created this PDU.
+    
+``pdu_id``
+  Type:
+    String
+  Description:
+    Unique identifier for PDU within the context for the originating homeserver
+
+``ts``
+  Type:
+    Integer
+  Description:
+    Timestamp in milliseconds on originating homeserver when this PDU was created.
+
+``pdu_type``
+  Type:
+    String
+  Description:
+    PDU event type.
+
+``prev_pdus``
+  Type:
+    List of pairs of strings
+  Description:
+    The originating homeserver and PDU ids of the most recent PDUs the 
+    homeserver was aware of for this context when it made this PDU.
+
+``depth``
+  Type:
+    Integer
+  Description:
+    The maximum depth of the previous PDUs plus one.
+
+
+.. TODO paul
+  [[TODO(paul): Update this structure so that 'pdu_id' is a two-element
+  [origin,ref] pair like the prev_pdus are]]
+  
+
+For state updates:
+
+``is_state``
+  Type:
+    Boolean
+  Description:
+    True if this PDU is updating state.
+    
+``state_key``
+  Type:
+    String
+  Description:
+    Optional key identifying the updated state within the context.
+    
+``power_level``
+  Type:
+    Integer
+  Description:
+    The asserted power level of the user performing the update.
+    
+``min_update``
+  Type:
+    Integer
+  Description:
+    The required power level needed to replace this update.
+
+``prev_state_id``
+  Type:
+    String
+  Description:
+    PDU event type.
+    
+``prev_state_origin``
+  Type:
+    String
+  Description:
+    The PDU id of the update this replaces.
+    
+``user``
+  Type:
+    String
+  Description:
+    The user updating the state.
 
 ::
 
@@ -1589,12 +1708,13 @@ keys exist to support this:
   "prev_state_id":TODO
   "prev_state_origin":TODO}
 
-[[TODO(paul): At this point we should probably have a long description of how
-State management works, with descriptions of clobbering rules, power levels, etc
-etc... But some of that detail is rather up-in-the-air, on the whiteboard, and
-so on. This part needs refining. And writing in its own document as the details
-relate to the server/system as a whole, not specifically to server-server
-federation.]]
+.. TODO paul
+  [[TODO(paul): At this point we should probably have a long description of how
+  State management works, with descriptions of clobbering rules, power levels, etc
+  etc... But some of that detail is rather up-in-the-air, on the whiteboard, and
+  so on. This part needs refining. And writing in its own document as the details
+  relate to the server/system as a whole, not specifically to server-server
+  federation.]]
 
 EDUs, by comparison to PDUs, do not have an ID, a context, or a list of
 "previous" IDs. The only mandatory fields for these are the type, origin and
@@ -1607,6 +1727,79 @@ destination home server names, and the actual nested content.
   "destination":"orange",
   "content":...}
   
+  
+Protocol URLs
+=============
+.. WARNING::
+  This section may be misleading or inaccurate.
+
+All these URLs are namespaced within a prefix of::
+
+  /_matrix/federation/v1/...
+
+For active pushing of messages representing live activity "as it happens"::
+
+  PUT .../send/:transaction_id/
+    Body: JSON encoding of a single Transaction
+    Response: TODO
+
+The transaction_id path argument will override any ID given in the JSON body.
+The destination name will be set to that of the receiving server itself. Each
+embedded PDU in the transaction body will be processed.
+
+
+To fetch a particular PDU::
+
+  GET .../pdu/:origin/:pdu_id/
+    Response: JSON encoding of a single Transaction containing one PDU
+
+Retrieves a given PDU from the server. The response will contain a single new
+Transaction, inside which will be the requested PDU.
+  
+
+To fetch all the state of a given context::
+
+  GET .../state/:context/
+    Response: JSON encoding of a single Transaction containing multiple PDUs
+
+Retrieves a snapshot of the entire current state of the given context. The
+response will contain a single Transaction, inside which will be a list of
+PDUs that encode the state.
+
+To backfill events on a given context::
+
+  GET .../backfill/:context/
+    Query args: v, limit
+    Response: JSON encoding of a single Transaction containing multiple PDUs
+
+Retrieves a sliding-window history of previous PDUs that occurred on the
+given context. Starting from the PDU ID(s) given in the "v" argument, the
+PDUs that preceeded it are retrieved, up to a total number given by the
+"limit" argument. These are then returned in a new Transaction containing all
+off the PDUs.
+
+
+To stream events all the events::
+
+  GET .../pull/
+    Query args: origin, v
+    Response: JSON encoding of a single Transaction consisting of multiple PDUs
+
+Retrieves all of the transactions later than any version given by the "v"
+arguments.
+
+
+To make a query::
+
+  GET .../query/:query_type
+    Query args: as specified by the individual query types
+    Response: JSON encoding of a response object
+
+Performs a single query request on the receiving home server. The Query Type
+part of the path specifies the kind of query being made, and its query
+arguments have a meaning specific to that kind of query. The response is a
+JSON-encoded object whose meaning also depends on the kind of query.
+
 Backfilling
 -----------
 .. NOTE::
@@ -1805,12 +1998,76 @@ Glossary
 .. NOTE::
   This section is a work in progress.
 
-.. TODO
-  - domain specific words/acronyms with definitions
+Backfilling:
+  The process of synchronising historic state from one home server to another,
+  to backfill the event storage so that scrollback can be presented to the
+  client(s). Not to be confused with pagination.
+
+Context:
+  A single human-level entity of interest (currently, a chat room)
+
+EDU (Ephemeral Data Unit):
+  A message that relates directly to a given pair of home servers that are
+  exchanging it. EDUs are short-lived messages that related only to one single
+  pair of servers; they are not persisted for a long time and are not forwarded
+  on to other servers. Because of this, they have no internal ID nor previous
+  EDUs reference chain.
+
+Event:
+  A record of activity that records a single thing that happened on to a context
+  (currently, a chat room). These are the "chat messages" that Synapse makes
+  available.
+
+PDU (Persistent Data Unit):
+  A message that relates to a single context, irrespective of the server that
+  is communicating it. PDUs either encode a single Event, or a single State
+  change. A PDU is referred to by its PDU ID; the pair of its origin server
+  and local reference from that server.
+
+PDU ID:
+  The pair of PDU Origin and PDU Reference, that together globally uniquely
+  refers to a specific PDU.
+
+PDU Origin:
+  The name of the origin server that generated a given PDU. This may not be the
+  server from which it has been received, due to the way they are copied around
+  from server to server. The origin always records the original server that
+  created it.
+
+PDU Reference:
+  A local ID used to refer to a specific PDU from a given origin server. These
+  references are opaque at the protocol level, but may optionally have some
+  structured meaning within a given origin server or implementation.
+
+Presence:
+  The concept of whether a user is currently online, how available they declare
+  they are, and so on. See also: doc/model/presence
+
+Profile:
+  A set of metadata about a user, such as a display name, provided for the
+  benefit of other users. See also: doc/model/profiles
+
+Room ID:
+  An opaque string (of as-yet undecided format) that identifies a particular
+  room and used in PDUs referring to it.
+
+Room Alias:
+  A human-readable string of the form #name:some.domain that users can use as a
+  pointer to identify a room; a Directory Server will map this to its Room ID
+
+State:
+  A set of metadata maintained about a Context, which is replicated among the
+  servers in addition to the history of Events.
 
 User ID:
-  An opaque ID which identifies an end-user, which consists of some opaque 
-  localpart combined with the domain name of their home server. 
+  A string of the form @localpart:domain.name that identifies a user for
+  wire-protocol purposes. The localpart is meaningless outside of a particular
+  home server. This takes a human-readable form that end-users can use directly
+  if they so wish, avoiding the 3PIDs.
+
+Transaction:
+  A message which relates to the communication between a given pair of servers.
+  A transaction contains possibly-empty lists of PDUs and EDUs.
 
 
 .. Links through the external API docs are below

synapse/rest/room.py

@@ -388,7 +388,7 @@ class RoomMembershipRestServlet(RestServlet):
     def register(self, http_server):
         # /rooms/$roomid/[invite|join|leave]
         PATTERN = ("/rooms/(?P<room_id>[^/]*)/" +
-            "(?P<membership_action>join|invite|leave|ban)")
+            "(?P<membership_action>join|invite|leave|ban|kick)")
         register_txn_path(self, PATTERN, http_server)
 
     @defer.inlineCallbacks
@@ -399,11 +399,14 @@ class RoomMembershipRestServlet(RestServlet):
 
         # target user is you unless it is an invite
         state_key = user.to_string()
-        if membership_action in ["invite", "ban"]:
+        if membership_action in ["invite", "ban", "kick"]:
             if "user_id" not in content:
                 raise SynapseError(400, "Missing user_id key.")
             state_key = content["user_id"]
 
+            if membership_action == "kick":
+                membership_action = "leave"
+
         event = self.event_factory.create_event(
             etype=RoomMemberEvent.TYPE,
             content={"membership": unicode(membership_action)},

synapse/storage/_base.py

@@ -79,19 +79,21 @@ class SQLBaseStore(object):
     # "Simple" SQL API methods that operate on a single table with no JOINs,
     # no complex WHERE clauses, just a dict of values for columns.
 
-    def _simple_insert(self, table, values):
+    def _simple_insert(self, table, values, or_replace=False):
         """Executes an INSERT query on the named table.
 
         Args:
             table : string giving the table name
             values : dict of new column names and values for them
+            or_replace : bool; if True performs an INSERT OR REPLACE
         """
         return self._db_pool.runInteraction(
-            self._simple_insert_txn, table, values,
+            self._simple_insert_txn, table, values, or_replace=or_replace
         )
 
-    def _simple_insert_txn(self, txn, table, values):
-        sql = "INSERT INTO %s (%s) VALUES(%s)" % (
+    def _simple_insert_txn(self, txn, table, values, or_replace=False):
+        sql = "%s INTO %s (%s) VALUES(%s)" % (
+            ("INSERT OR REPLACE" if or_replace else "INSERT"),
             table,
             ", ".join(k for k in values),
             ", ".join("?" for k in values)

webclient/app-filter.js

@@ -107,18 +107,18 @@ angular.module('matrixWebClient')
                     if (2 === Object.keys(room.members).length) {
                         for (var i in room.members) {
                             var member = room.members[i];
-                            if (member.user_id !== matrixService.config().user_id) {
+                            if (member.state_key !== matrixService.config().user_id) {
 
-                                if (member.user_id in $rootScope.presence) {
+                                if (member.state_key in $rootScope.presence) {
                                     // If the user is available in presence, use the displayname there
                                     // as it is the most uptodate
-                                    roomName = $rootScope.presence[member.user_id].content.displayname;
+                                    roomName = $rootScope.presence[member.state_key].content.displayname;
                                 }
                                 else if (member.content.displayname) {
                                     roomName = member.content.displayname;
                                 }
                                 else {
-                                    roomName = member.user_id;
+                                    roomName = member.state_key;
                                 }
                             }
                         }
@@ -145,7 +145,7 @@ angular.module('matrixWebClient')
                                 roomName = $rootScope.presence[userID].content.displayname;
                             }
                             else {
-                                roomName = member.user_id;
+                                roomName = userID;
                             }
                         }
                     }

webclient/components/matrix/event-handler-service.js

@@ -97,7 +97,7 @@ angular.module('eventHandlerService', [])
             }
         }
         
-        $rootScope.events.rooms[event.room_id].members[event.user_id] = event;
+        $rootScope.events.rooms[event.room_id].members[event.state_key] = event;
         $rootScope.$broadcast(MEMBER_EVENT, event, isLiveEvent);
     };
     

webclient/room/room-controller.js

@@ -253,6 +253,29 @@ angular.module('RoomController', ['ngSanitize', 'mFileInput'])
         var member = $scope.members[user_id];
         if (member) {
             member.powerLevel = matrixService.getUserPowerLevel($scope.room_id, user_id);
+            
+            normaliseMembersPowerLevels();
+        }
+    }
+
+    // Normalise users power levels so that the user with the higher power level
+    // will have a bar covering 100% of the width of his avatar
+    var normaliseMembersPowerLevels = function() {
+        // Find the max power level
+        var maxPowerLevel = 0;
+        for (var i in $scope.members) {
+            var member = $scope.members[i];
+            if (member.powerLevel) {
+                maxPowerLevel = Math.max(maxPowerLevel, member.powerLevel);
+            }
+        }
+
+        // Normalized them on a 0..100% scale to be use in css width
+        if (maxPowerLevel) {
+            for (var i in $scope.members) {
+                var member = $scope.members[i];
+                member.powerLevelNorm = (member.powerLevel * 100) / maxPowerLevel;
+            }
         }
     }
 

webclient/room/room.html

@@ -24,7 +24,7 @@
                          title="{{ member.id }}"
                          width="80" height="80"/>
                     <img class="userAvatarGradient" src="img/gradient.png" title="{{ member.id }}" width="80" height="24"/>
-                    <div class="userPowerLevel" ng-style="{'width': (10 * member.powerLevel) +'%'}"></div>
+                    <div class="userPowerLevel" ng-style="{'width': member.powerLevelNorm +'%'}"></div>
                     <div class="userName">{{ member.displayname || member.id.substr(0, member.id.indexOf(':')) }}<br/>{{ member.displayname ? "" : member.id.substr(member.id.indexOf(':')) }}</div>
                 </td>
                 <td class="userPresence" ng-class="(member.presence === 'online' ? 'online' : (member.presence === 'unavailable' ? 'unavailable' : '')) + ' ' + (member.membership == 'invite' ? 'invited' : '')">