From 331597b9f8a7942cbcb233a328301e4d5bf94fb0 Mon Sep 17 00:00:00 2001 From: Tulir Asokan Date: Fri, 11 Jan 2019 23:28:47 +0200 Subject: Switch to Go modules and make other changes --- vendor/maunium.net/go/mautrix/sync.go | 159 ---------------------------------- 1 file changed, 159 deletions(-) delete mode 100644 vendor/maunium.net/go/mautrix/sync.go (limited to 'vendor/maunium.net/go/mautrix/sync.go') diff --git a/vendor/maunium.net/go/mautrix/sync.go b/vendor/maunium.net/go/mautrix/sync.go deleted file mode 100644 index 9589edc..0000000 --- a/vendor/maunium.net/go/mautrix/sync.go +++ /dev/null @@ -1,159 +0,0 @@ -package mautrix - -import ( - "encoding/json" - "fmt" - "runtime/debug" - "time" -) - -// Syncer represents an interface that must be satisfied in order to do /sync requests on a client. -type Syncer interface { - // Process the /sync response. The since parameter is the since= value that was used to produce the response. - // This is useful for detecting the very first sync (since=""). If an error is return, Syncing will be stopped - // permanently. - ProcessResponse(resp *RespSync, since string) error - // OnFailedSync returns either the time to wait before retrying or an error to stop syncing permanently. - OnFailedSync(res *RespSync, err error) (time.Duration, error) - // GetFilterJSON for the given user ID. NOT the filter ID. - GetFilterJSON(userID string) json.RawMessage -} - -// DefaultSyncer is the default syncing implementation. You can either write your own syncer, or selectively -// replace parts of this default syncer (e.g. the ProcessResponse method). The default syncer uses the observer -// pattern to notify callers about incoming events. See DefaultSyncer.OnEventType for more information. -type DefaultSyncer struct { - UserID string - Store Storer - listeners map[EventType][]OnEventListener // event type to listeners array -} - -// OnEventListener can be used with DefaultSyncer.OnEventType to be informed of incoming events. -type OnEventListener func(*Event) - -// NewDefaultSyncer returns an instantiated DefaultSyncer -func NewDefaultSyncer(userID string, store Storer) *DefaultSyncer { - return &DefaultSyncer{ - UserID: userID, - Store: store, - listeners: make(map[EventType][]OnEventListener), - } -} - -// ProcessResponse processes the /sync response in a way suitable for bots. "Suitable for bots" means a stream of -// unrepeating events. Returns a fatal error if a listener panics. -func (s *DefaultSyncer) ProcessResponse(res *RespSync, since string) (err error) { - if !s.shouldProcessResponse(res, since) { - return - } - - defer func() { - if r := recover(); r != nil { - err = fmt.Errorf("ProcessResponse panicked! userID=%s since=%s panic=%s\n%s", s.UserID, since, r, debug.Stack()) - } - }() - - for roomID, roomData := range res.Rooms.Join { - room := s.getOrCreateRoom(roomID) - for _, event := range roomData.State.Events { - event.RoomID = roomID - room.UpdateState(event) - s.notifyListeners(event) - } - for _, event := range roomData.Timeline.Events { - event.RoomID = roomID - s.notifyListeners(event) - } - } - for roomID, roomData := range res.Rooms.Invite { - room := s.getOrCreateRoom(roomID) - for _, event := range roomData.State.Events { - event.RoomID = roomID - room.UpdateState(event) - s.notifyListeners(event) - } - } - for roomID, roomData := range res.Rooms.Leave { - room := s.getOrCreateRoom(roomID) - for _, event := range roomData.Timeline.Events { - if event.StateKey != nil { - event.RoomID = roomID - room.UpdateState(event) - s.notifyListeners(event) - } - } - } - return -} - -// OnEventType allows callers to be notified when there are new events for the given event type. -// There are no duplicate checks. -func (s *DefaultSyncer) OnEventType(eventType EventType, callback OnEventListener) { - _, exists := s.listeners[eventType] - if !exists { - s.listeners[eventType] = []OnEventListener{} - } - s.listeners[eventType] = append(s.listeners[eventType], callback) -} - -// shouldProcessResponse returns true if the response should be processed. May modify the response to remove -// stuff that shouldn't be processed. -func (s *DefaultSyncer) shouldProcessResponse(resp *RespSync, since string) bool { - if since == "" { - return false - } - // This is a horrible hack because /sync will return the most recent messages for a room - // as soon as you /join it. We do NOT want to process those events in that particular room - // because they may have already been processed (if you toggle the bot in/out of the room). - // - // Work around this by inspecting each room's timeline and seeing if an m.room.member event for us - // exists and is "join" and then discard processing that room entirely if so. - // TODO: We probably want to process messages from after the last join event in the timeline. - for roomID, roomData := range resp.Rooms.Join { - for i := len(roomData.Timeline.Events) - 1; i >= 0; i-- { - e := roomData.Timeline.Events[i] - if e.Type == StateMember && e.GetStateKey() == s.UserID { - if e.Content.Membership == "join" { - _, ok := resp.Rooms.Join[roomID] - if !ok { - continue - } - delete(resp.Rooms.Join, roomID) // don't re-process messages - delete(resp.Rooms.Invite, roomID) // don't re-process invites - break - } - } - } - } - return true -} - -// getOrCreateRoom must only be called by the Sync() goroutine which calls ProcessResponse() -func (s *DefaultSyncer) getOrCreateRoom(roomID string) *Room { - room := s.Store.LoadRoom(roomID) - if room == nil { // create a new Room - room = NewRoom(roomID) - s.Store.SaveRoom(room) - } - return room -} - -func (s *DefaultSyncer) notifyListeners(event *Event) { - listeners, exists := s.listeners[event.Type] - if !exists { - return - } - for _, fn := range listeners { - fn(event) - } -} - -// OnFailedSync always returns a 10 second wait period between failed /syncs, never a fatal error. -func (s *DefaultSyncer) OnFailedSync(res *RespSync, err error) (time.Duration, error) { - return 10 * time.Second, nil -} - -// GetFilterJSON returns a filter with a timeline limit of 50. -func (s *DefaultSyncer) GetFilterJSON(userID string) json.RawMessage { - return json.RawMessage(`{"room":{"timeline":{"limit":50}}}`) -} -- cgit v1.2.3