allow admins mods to watch/ignore categories for other users

public/src/client/account/categories.js

@@ -18,7 +18,7 @@ define('forum/account/categories', ['forum/account/header'], function (header) {
 			var $this = $(this);
 			var command = $this.attr('component') === 'category/watching' ? 'watch' : 'ignore';
 
-			socket.emit('categories.' + command, cid, function (err, modified_cids) {
+			socket.emit('categories.' + command, { cid: cid, uid: ajaxify.data.uid }, function (err, modified_cids) {
 				if (err) {
 					return app.alertError(err.message);
 				}

src/socket.io/categories.js

@@ -174,9 +174,17 @@ SocketCategories.ignore = function (socket, cid, callback) {
 };
 
 function ignoreOrWatch(fn, socket, cid, callback) {
+	var targetUid = socket.uid;
 	var cids = [parseInt(cid, 10)];
+	if (typeof cid === 'object') {
+		targetUid = cid.uid;
+		cids = [parseInt(cid.cid, 10)];
+	}
 
 	async.waterfall([
+		function (next) {
+			user.isAdminOrGlobalModOrSelf(socket.uid, targetUid, next);
+		},
 		function (next) {
 			db.getSortedSetRange('categories:cid', 0, -1, next);
 		},
@@ -201,11 +209,11 @@ function ignoreOrWatch(fn, socket, cid, callback) {
 			} while (cat);
 
 			async.each(cids, function (cid, next) {
-				fn(socket.uid, cid, next);
+				fn(targetUid, cid, next);
 			}, next);
 		},
 		function (next) {
-			topics.pushUnreadCount(socket.uid, next);
+			topics.pushUnreadCount(targetUid, next);
 		},
 		function (next) {
 			next(null, cids);