Switch to upstream gomatrix (#1219)

Signed-off-by: Tilo Spannagel <development@tilosp.de>

vendor/github.com/matrix-org/gomatrix/room.go

@@ -0,0 +1,63 @@
+package gomatrix
+
+// Room represents a single Matrix room.
+type Room struct {
+	ID    string
+	State map[string]map[string]*Event
+}
+
+// PublicRoom represents the information about a public room obtainable from the room directory
+type PublicRoom struct {
+	CanonicalAlias   string   `json:"canonical_alias"`
+	Name             string   `json:"name"`
+	WorldReadable    bool     `json:"world_readable"`
+	Topic            string   `json:"topic"`
+	NumJoinedMembers int      `json:"num_joined_members"`
+	AvatarURL        string   `json:"avatar_url"`
+	RoomID           string   `json:"room_id"`
+	GuestCanJoin     bool     `json:"guest_can_join"`
+	Aliases          []string `json:"aliases"`
+}
+
+// UpdateState updates the room's current state with the given Event. This will clobber events based
+// on the type/state_key combination.
+func (room Room) UpdateState(event *Event) {
+	_, exists := room.State[event.Type]
+	if !exists {
+		room.State[event.Type] = make(map[string]*Event)
+	}
+	room.State[event.Type][*event.StateKey] = event
+}
+
+// GetStateEvent returns the state event for the given type/state_key combo, or nil.
+func (room Room) GetStateEvent(eventType string, stateKey string) *Event {
+	stateEventMap := room.State[eventType]
+	event := stateEventMap[stateKey]
+	return event
+}
+
+// GetMembershipState returns the membership state of the given user ID in this room. If there is
+// no entry for this member, 'leave' is returned for consistency with left users.
+func (room Room) GetMembershipState(userID string) string {
+	state := "leave"
+	event := room.GetStateEvent("m.room.member", userID)
+	if event != nil {
+		membershipState, found := event.Content["membership"]
+		if found {
+			mState, isString := membershipState.(string)
+			if isString {
+				state = mState
+			}
+		}
+	}
+	return state
+}
+
+// NewRoom creates a new Room with the given ID
+func NewRoom(roomID string) *Room {
+	// Init the State map and return a pointer to the Room
+	return &Room{
+		ID:    roomID,
+		State: make(map[string]map[string]*Event),
+	}
+}