added ability to limit duplicate votes based on IP

Author: nearbycoder

client/app/scripts/app.js

@@ -37,5 +37,5 @@ angular
   })
   .constant('myConfig', {
     'backend': 'http://45.55.31.147:9090/api/poll/',
-    'version': 0.2
+    'version': 0.3
   });

client/app/scripts/controllers/main.js

@@ -22,7 +22,7 @@ angular.module('materialPollApp')
         }
         if(added !== false){
             $('.submitButton').hide();
-            $http.post(myConfig.backend,{answers: $scope.options, name: $scope.title, multiple: $scope.multiple, votes: votes})
+            $http.post(myConfig.backend,{answers: $scope.options, name: $scope.title, multiple: $scope.multiple, singleIP: $scope.singleIP, votes: votes})
             .success(function(data){
                 $scope.linkto = data[1].poll.id;
                 $scope.location = window.location.protocol + window.location.host + '/#/' + $scope.linkto;

client/app/views/main.html

@@ -14,8 +14,12 @@
       </div>
       <div class="card-action" style="margin-left:25px;margin-right:25px;">
         <p>
-          <input type="checkbox" ng-model="multiple" id="test5" />
-          <label for="test5" class='red-text text-lighten-5'>Allow multiple poll choices?</label>
+          <input type="checkbox" ng-model="multiple" id="multiple" />
+          <label for="multiple" class='red-text text-lighten-5'>Allow multiple poll choices?</label>
+        </p>
+        <p>
+          <input type="checkbox" ng-model="singleIP" id="singleip" />
+          <label for="singleip" class='red-text text-lighten-5'>Restrict Votes By IP Address?</label>
         </p>
         <a ng-click="submit()" ng-if="!linkto" class="submitButton waves-effect waves-light btn red lighten-2 red-text text-lighten-5">Create Poll</a>
         <a ng-href="#/{{linkto}}" ng-if="linkto" class="waves-effect waves-light btn red lighten-2 red-text text-lighten-5">View Poll</a>

server/app/models/poll.js

@@ -6,7 +6,9 @@ var PollSchema   = new Schema({
 	name: String,
 	answers: Schema.Types.Mixed,
 	votes: Schema.Types.Mixed,
-	multiple: Boolean
+	multiple: Boolean,
+	singleIP: Boolean,
+	IpAddresses: Schema.Types.Mixed,
 });
 
 module.exports = mongoose.model('Poll', PollSchema);

server/server.js

@@ -72,7 +72,9 @@ router.route('/poll')
 		poll.id = makeid();
 		poll.name = req.body.name;  // set the poll name (comes from the request)
 		poll.multiple = req.body.multiple;
+		poll.singleIP = req.body.singleIP;
 		poll.answers = req.body.answers;
+		poll.IpAddresses = [];
 		poll.votes = req.body.votes;
 		poll.save(function(err, poll) {
 			if (err)
@@ -113,14 +115,33 @@ router.route('/poll/:poll_id')
 			if (err){
 				res.send(err);
 			}
-
-			for(x = 0; x < req.body.votes.length; x++){
-				if(req.body.votes[x] != null){
-					poll.votes[x] += req.body.votes[x];
+			if(poll.singleIP == true){
+				var ip = req.headers['x-forwarded-for'] || 
+		     req.connection.remoteAddress || 
+		     req.socket.remoteAddress ||
+		     req.connection.socket.remoteAddress;
+		     
+		     if (poll.IpAddresses.indexOf(ip) > -1) {
+				    //In the array!
+				 } else {
+				    poll.IpAddresses.push(ip);
+				    for(x = 0; x < req.body.votes.length; x++){
+							if(req.body.votes[x] != null){
+								poll.votes[x] += req.body.votes[x];
+							}
+						}
+						poll.markModified('IpAddresses');
+						poll.markModified('votes');
+				 }
+			}else{
+				for(x = 0; x < req.body.votes.length; x++){
+					if(req.body.votes[x] != null){
+						poll.votes[x] += req.body.votes[x];
+					}
 				}
+				poll.markModified('votes');
 			}
-
-			poll.markModified('votes');
+			
 			poll.save(function(err) {
 				io.emit('chat' + req.params.poll_id, poll);
 				if (err){