bring back old nickserv-based auth checking

bin/tipbot.js

@@ -76,9 +76,27 @@ var client = new irc.Client(settings.connection.host, settings.login.nickname, {
 
 // gets user's login status
 irc.Client.prototype.isIdentified = function(nickname, callback) {
-  this.whois(nickname, function(reply) {
-    callback(!!reply.account);
-  });
+  // request login status
+  this.say('NickServ', 'ACC ' + nickname);
+
+  // wait for response
+  var listener = function(from, to, message) {
+   // proceed only on NickServ's ACC response
+    var regexp = new RegExp('^(\\S+) ACC (\\d)');
+    if(from != undefined && from.toLowerCase() == 'nickserv' && regexp.test(message)) {
+      var match = message.match(regexp);
+      var user  = match[1];
+      var level = match[2];
+
+      // if the right response, call the callback and remove this listener
+      if(user.toLowerCase() == nickname.toLowerCase()) {
+        callback(level == 3);
+        this.removeListener('notice', listener);
+      }
+    }
+  }
+
+  this.addListener('notice', listener);
 }
 
 irc.Client.prototype.getNames = function(channel, callback) {