Set permissions for invited users to allow changing visible room name, inviting others, etc.

main.js

@@ -121,11 +121,13 @@ function createOrJoinSMSRoom(tel, ournumber, callback) {
         if (inRoom) {
             // we're already in the room, do nothing
             logger.debug("Room " + roomName + " already joined.");
+            setSMSRoomPowerLevels(res.room_id);
             callback(res.room_id);
         } else {
             // not in the room, join it
             client.joinRoom(res.room_id).then((room) => {
                 logger.debug("Room " + roomName + " joined.");
+                setSMSRoomPowerLevels(res.room_id);
                 callback(room.room_id);
             });
         }
@@ -141,6 +143,7 @@ function createOrJoinSMSRoom(tel, ournumber, callback) {
             topic: "SMS conversation with " + formatPhoneNumber(tel, "(NNN) NNN-NNNN") + " (using " + formatPhoneNumber(ournumber, "(NNN) NNN-NNNN") + ")"
         }).then((room) => {
             logger.debug("Room" + roomName + " created with ID " + room.room_id);
+            setSMSRoomPowerLevels(res.room_id);
 
             // The first message or two we send doesn't go through unless we do this.
             // It just spits out "Error sending event M_FORBIDDEN: Unknown room" instead.
@@ -149,6 +152,29 @@ function createOrJoinSMSRoom(tel, ournumber, callback) {
     });
 }
 
+function setSMSRoomPowerLevels(roomid) {
+    var userPowerLevels = {};
+    for (var i = 0; i < settings.inviteusers.length; i++) {
+        userPowerLevels[settings.inviteusers[i]] = 50;
+    }
+    client.sendEvent(roomid, "m.room.power_levels", {
+        "events": {
+            "m.room.name": 50,
+            "m.room.power_levels": 50
+        },
+        "events_default": 0,
+        "invite": 50,
+        "kick": 50,
+        "notifications": {
+            "room": 50
+        },
+        "redact": 50,
+        "state_default": 50,
+        "users": userPowerLevels,
+        "users_default": 0
+    });
+}
+
 function getAndUploadFile(url, callback) {
     logger.info("Downloading MMS media " + url);
     // download
@@ -357,6 +383,9 @@ client.login("m.login.password", {"user": settings.matrixuser, "password": setti
                 });
             }
             return;
+        } else if (event.getContent().body.startsWith("!fixperms")) {
+            sendMatrixNotice(event.getRoomId(), "Resetting power levels for this room.");
+            setSMSRoomPowerLevels(event.getRoomId());
         }
         const matches = room.name.match(/([1-9][0-9]+)/g);
         if (matches.length == 1) {