From ef125702f51b9e104655d3322030424394b13d31 Mon Sep 17 00:00:00 2001
From: Ilya Beltsiukou <968597@gmail.com>
Date: Thu, 25 Mar 2021 22:04:37 +0300
Subject: [PATCH] Implement room alias api's

---
 client.go    | 34 ++++++++++++++++++++++++++++++++++
 requests.go  |  5 +++++
 responses.go | 11 +++++++++++
 3 files changed, 50 insertions(+)

diff --git a/client.go b/client.go
index d0bb0c5..ecdbebc 100644
--- a/client.go
+++ b/client.go
@@ -768,6 +768,40 @@ func (cli *Client) Messages(roomID, from, to string, dir rune, limit int) (resp
 	return
 }
 
+// CreateRoomAlias create a new mapping from room alias to room ID.
+// See https://matrix.org/docs/spec/client_server/r0.6.1#put-matrix-client-r0-directory-room-roomalias
+func (cli *Client) CreateRoomAlias(alias string, req *ReqCreateRoomAlias) error {
+	urlPath := cli.BuildURL("directory", "room", alias)
+	return cli.MakeRequest(http.MethodPut, urlPath, req, nil)
+}
+
+// ResolveRoomsIDs requests that the server resolve a room alias to a room ID.
+// The server will use the federation API to resolve the alias if the domain part of the alias does not correspond to the server's own domain.
+// See https://matrix.org/docs/spec/client_server/r0.6.1#get-matrix-client-r0-directory-room-roomalias
+func (cli *Client) ResolveRoomsIDs(alias string) (resp *RespResolveRoomsIDs, err error) {
+	urlPath := cli.BuildURL("directory", "room", alias)
+	err = cli.MakeRequest(http.MethodGet, urlPath, nil, resp)
+	return
+}
+
+// DeleteRoomAlias remove a mapping of room alias to room ID.
+// Servers may choose to implement additional access control checks here, for instance that room aliases can only be deleted by their creator or a server administrator.
+// See https://matrix.org/docs/spec/client_server/r0.6.1#delete-matrix-client-r0-directory-room-roomalias
+func (cli *Client) DeleteRoomAlias(alias string) error {
+	urlPath := cli.BuildURL("directory", "room", alias)
+	return cli.MakeRequest(http.MethodDelete, urlPath, nil, nil)
+}
+
+// RoomAliases get a list of aliases maintained by the local server for the given room.
+// This endpoint can be called by users who are in the room (external users receive an M_FORBIDDEN error response). If the room's m.room.history_visibility maps to world_readable, any user can call this endpoint.
+// Servers may choose to implement additional access control checks here, such as allowing server administrators to view aliases regardless of membership.
+// See https://matrix.org/docs/spec/client_server/r0.6.1#get-matrix-client-r0-rooms-roomid-aliases
+func (cli *Client) RoomAliases(roomID string) (resp *RespRoomAliases, err error) {
+	urlPath := cli.BuildURL("directory", roomID, "aliases")
+	err = cli.MakeRequest(http.MethodGet, urlPath, nil, resp)
+	return
+}
+
 // TurnServer returns turn server details and credentials for the client to use when initiating calls.
 // See http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-voip-turnserver
 func (cli *Client) TurnServer() (resp *RespTurnServer, err error) {
diff --git a/requests.go b/requests.go
index 31c426d..0852d6e 100644
--- a/requests.go
+++ b/requests.go
@@ -77,3 +77,8 @@ type ReqTyping struct {
 	Typing  bool  `json:"typing"`
 	Timeout int64 `json:"timeout"`
 }
+
+// ReqCreateRoomAlias is the JSON request for https://matrix.org/docs/spec/client_server/r0.6.1#put-matrix-client-r0-directory-room-roomalias
+type ReqCreateRoomAlias struct {
+	RoomID string `json:"room_id"`
+}
diff --git a/responses.go b/responses.go
index f488e69..0f5bc10 100644
--- a/responses.go
+++ b/responses.go
@@ -208,3 +208,14 @@ type RespTurnServer struct {
 	TTL      int      `json:"ttl"`
 	URIs     []string `json:"uris"`
 }
+
+// RespResolveRoomsIDs is the JSON response for https://matrix.org/docs/spec/client_server/r0.6.1#get-matrix-client-r0-directory-room-roomalias
+type RespResolveRoomsIDs struct {
+	RoomID  string   `json:"room_id"`
+	Servers []string `json:"servers"`
+}
+
+// RespRoomAliases is the JSON response for https://matrix.org/docs/spec/client_server/r0.6.1#get-matrix-client-r0-rooms-roomid-aliases
+type RespRoomAliases struct {
+	Aliases []string `json:"aliases"`
+}