Merge pull request #71 from matrix-org/t3chguy/public_rooms

Add methods to query /publicRooms API

client.go

@@ -372,6 +372,53 @@ func (cli *Client) Versions() (resp *RespVersions, err error) {
 	return
 }
 
+// PublicRooms returns the list of public rooms on target server. See https://matrix.org/docs/spec/client_server/r0.6.0#get-matrix-client-unstable-publicrooms
+func (cli *Client) PublicRooms(limit int, since string, server string) (resp *RespPublicRooms, err error) {
+	args := map[string]string{}
+
+	if limit != 0 {
+		args["limit"] = strconv.Itoa(limit)
+	}
+	if since != "" {
+		args["since"] = since
+	}
+	if server != "" {
+		args["server"] = server
+	}
+
+	urlPath := cli.BuildURLWithQuery([]string{"publicRooms"}, args)
+	err = cli.MakeRequest("GET", urlPath, nil, &resp)
+	return
+}
+
+// PublicRoomsFiltered returns a subset of PublicRooms filtered server side.
+// See https://matrix.org/docs/spec/client_server/r0.6.0#post-matrix-client-unstable-publicrooms
+func (cli *Client) PublicRoomsFiltered(limit int, since string, server string, filter string) (resp *RespPublicRooms, err error) {
+	content := map[string]string{}
+
+	if limit != 0 {
+		content["limit"] = strconv.Itoa(limit)
+	}
+	if since != "" {
+		content["since"] = since
+	}
+	if filter != "" {
+		content["filter"] = filter
+	}
+
+	var urlPath string
+	if server == "" {
+		urlPath = cli.BuildURL("publicRooms")
+	} else {
+		urlPath = cli.BuildURLWithQuery([]string{"publicRooms"}, map[string]string{
+			"server": server,
+		})
+	}
+
+	err = cli.MakeRequest("POST", urlPath, content, &resp)
+	return
+}
+
 // JoinRoom joins the client to a room ID or alias. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-join-roomidoralias
 //
 // If serverName is specified, this will be added as a query param to instruct the homeserver to join via that server. If content is specified, it will

client_test.go

@@ -84,6 +84,55 @@ func TestClient_StateEvent(t *testing.T) {
 	}
 }
 
+func TestClient_PublicRooms(t *testing.T) {
+	cli := mockClient(func(req *http.Request) (*http.Response, error) {
+		if req.Method == "GET" && req.URL.Path == "/_matrix/client/r0/publicRooms" {
+			return &http.Response{
+				StatusCode: 200,
+				Body: ioutil.NopCloser(bytes.NewBufferString(`{
+  "chunk": [
+    {
+      "aliases": [
+        "#murrays:cheese.bar"
+      ],
+      "avatar_url": "mxc://bleeker.street/CHEDDARandBRIE",
+      "guest_can_join": false,
+      "name": "CHEESE",
+      "num_joined_members": 37,
+      "room_id": "!ol19s:bleecker.street",
+      "topic": "Tasty tasty cheese",
+      "world_readable": true
+    }
+  ],
+  "next_batch": "p190q",
+  "prev_batch": "p1902",
+  "total_room_count_estimate": 115
+}`)),
+			}, nil
+		}
+
+		return nil, fmt.Errorf("unhandled URL: %s", req.URL.Path)
+	})
+
+	publicRooms, err := cli.PublicRooms(0, "", "")
+
+	if err != nil {
+		t.Fatalf("PublicRooms: error, got %s", err.Error())
+	}
+	if publicRooms.TotalRoomCountEstimate != 115 {
+		t.Fatalf("PublicRooms: got %d, want %d", publicRooms.TotalRoomCountEstimate, 115)
+	}
+	if len(publicRooms.Chunk) != 1 {
+		t.Fatalf("PublicRooms: got %d, want %d", len(publicRooms.Chunk), 1)
+	}
+	if publicRooms.Chunk[0].Name != "CHEESE" {
+		t.Fatalf("PublicRooms: got %s, want %s", publicRooms.Chunk[0].Name, "CHEESE")
+	}
+	if publicRooms.Chunk[0].NumJoinedMembers != 37 {
+		t.Fatalf("PublicRooms: got %d, want %d", publicRooms.Chunk[0].NumJoinedMembers, 37)
+	}
+}
+
 func mockClient(fn func(*http.Request) (*http.Response, error)) *Client {
 	mrt := MockRoundTripper{
 		RT: fn,

events.go

@@ -13,9 +13,10 @@ type Event struct {
 	Timestamp   int64                  `json:"origin_server_ts"`       // The unix timestamp when this message was sent by the origin server
 	ID          string                 `json:"event_id"`               // The unique ID of this event
 	RoomID      string                 `json:"room_id"`                // The room the event was sent to. May be nil (e.g. for presence)
-	Content   map[string]interface{} `json:"content"`             // The JSON content of the event.
 	Redacts     string                 `json:"redacts,omitempty"`      // The event ID that was redacted if a m.room.redaction event
 	Unsigned    map[string]interface{} `json:"unsigned"`               // The unsigned portions of the event, such as age and prev_content
+	Content     map[string]interface{} `json:"content"`                // The JSON content of the event.
+	PrevContent map[string]interface{} `json:"prev_content,omitempty"` // The JSON prev_content of the event.
 }
 
 // Body returns the value of the "body" key in the event content if it is

responses.go

@@ -22,6 +22,14 @@ type RespVersions struct {
 	Versions []string `json:"versions"`
 }
 
+// RespPublicRooms is the JSON response for http://matrix.org/speculator/spec/HEAD/client_server/unstable.html#get-matrix-client-unstable-publicrooms
+type RespPublicRooms struct {
+	TotalRoomCountEstimate int          `json:"total_room_count_estimate"`
+	PrevBatch              string       `json:"prev_batch"`
+	NextBatch              string       `json:"next_batch"`
+	Chunk                  []PublicRoom `json:"chunk"`
+}
+
 // RespJoinRoom is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-join
 type RespJoinRoom struct {
 	RoomID string `json:"room_id"`

room.go

@@ -6,6 +6,19 @@ type Room struct {
 	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) {