Edits history of script submission #22454 for ' Post an unencrypted message (matrix)'

• bunnative

  Ap­pro­ved version

  Edit in Windmill

  Embed

  //native
  
  type Matrix = {
    baseUrl: string;
    token: string;
  };
  export async function main(matrix_res: Matrix, room: string, body: string) {
    if (!matrix_res.token) {
      throw Error("Sending a message requires an access token.");
    }
    const roomId = await resolveRoomAlias(matrix_res, room);
    const txnId = `${Math.random()}`;
    const resp = await fetch(
      `${matrix_res.baseUrl}/_matrix/client/v3/rooms/${encodeURIComponent(
        roomId,
      )}/send/m.room.message/${txnId}`,
      {
        method: "PUT",
        headers: {
          Accept: "application/json",
          Authorization: `Bearer ${matrix_res.token}`,
          "Content-Type": "application/json",
        },
        body: JSON.stringify({
          body,
          msgtype: "m.text",
        }),
      },
    );
    if (!resp.ok) {
      throw Error(`Failed to send message: Error HTTP${resp.status}`);
    }
    const eventId = (await resp.json())["event_id"];
    if (typeof eventId !== "string") {
      throw Error(
        `Faulty Matrix server implementation: Server didn't provide event_id for this message.`,
      );
    }
    return eventId;
  }
  
  /**
   * Resolves a room alias to a room id.
   * This is basically like resolving a domain name to an IP address.
   */
  async function resolveRoomAlias(
    matrix_res: Matrix,
    room: string,
  ): Promise<string> {
    // Is it already a room ID?
    if (room.startsWith("!")) {
      return room;
    }
    const resp = await fetch(
      `${
        matrix_res.baseUrl
      }/_matrix/client/v3/directory/room/${encodeURIComponent(room)}`,
      {
        headers: {
          Accept: "application/json",
          ...(matrix_res.token && {
            Authorization: `Bearer ${matrix_res.token}`,
          }),
        },
      },
    );
    if (!resp.ok) {
      throw Error(`Failed to resolve room alias: Error HTTP${resp.status}`);
    }
    const roomId = (await resp.json())["room_id"];
    if (typeof roomId !== "string") {
      throw Error(
        `Faulty Matrix server implementation: Server didn't provide room_id for this alias.`,
      );
    }
    return roomId;
  }
  

  Submitted by hugo989 7 days ago