WebChat enhancement and fixes

Added Spam Message config
Internal server now replies a spam message
Fixed getting webchat-interval to get int rather than double then cast
Fixed holding down "enter" on the empty chat line would spam chat attempts
Fixed so jsonip.appspot query is only done once

configuration.txt

@@ -80,6 +80,7 @@ web:
     
     joinmessage: "%playername% joined"
     quitmessage: "%playername% quit"
+    spammessage: "You may only chat once every %interval% seconds."
     
     defaultworld: world
     worlds:

src/main/java/org/dynmap/DynmapPlugin.java

@@ -145,7 +145,8 @@ public class DynmapPlugin extends JavaPlugin {
 
         if (configuration.getNode("web").getBoolean("allowwebchat", false)) {
             SendMessageHandler messageHandler = new SendMessageHandler() {{
-                maximumMessageInterval = (int)(configuration.getNode("web").getDouble("webchat-interval", 1.0) * 1000);
+                maximumMessageInterval = (configuration.getNode("web").getInt("webchat-interval", 1) * 1000);
+				spamMessage = "\""+configuration.getNode("web").getString("spammessage", "You may only chat once every %interval% seconds.")+"\"";
                 onMessageReceived.addListener(new Listener<SendMessageHandler.Message>() {
                     @Override
                     public void triggered(Message t) {

src/main/java/org/dynmap/web/handlers/SendMessageHandler.java

@@ -1,6 +1,8 @@
 package org.dynmap.web.handlers;
 
+import java.io.BufferedOutputStream;
 import java.io.InputStreamReader;
+import java.util.Date;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.LinkedList;
@@ -23,6 +25,7 @@ public class SendMessageHandler implements HttpHandler {
     public Event<Message> onMessageReceived = new Event<SendMessageHandler.Message>();
     
     public int maximumMessageInterval = 1000;
+	public String spamMessage = "\"You may only chat once every %interval% seconds.\"";
     private HashMap<String, WebUser> disallowedUsers = new HashMap<String, WebUser>();
     private LinkedList<WebUser> disallowedUserQueue = new LinkedList<WebUser>();
     private Object disallowedUsersLock = new Object();
@@ -65,9 +68,21 @@ public class SendMessageHandler implements HttpHandler {
                 disallowedUsers.put(user.name, user);
                 disallowedUserQueue.add(user);
             } else {
-                response.fields.put(HttpField.ContentLength, "0");
-                response.status = HttpStatus.Forbidden;
-                response.getBody();
+                spamMessage = spamMessage.replaceAll("%interval%", Integer.toString(maximumMessageInterval/1000));
+                byte[] stringBytes = spamMessage.getBytes();
+                String dateStr = new Date().toString();
+
+                response.fields.put("Date", dateStr);
+                response.fields.put("Content-Type", "text/plain");
+                response.fields.put("Expires", "Thu, 01 Dec 1994 16:00:00 GMT");
+                response.fields.put("Last-modified", dateStr);
+                response.fields.put("Content-Length", Integer.toString(stringBytes.length));
+                response.status = HttpStatus.OK;
+
+                BufferedOutputStream out = null;
+                out = new BufferedOutputStream(response.getBody());
+                out.write(stringBytes);
+                out.flush();
                 return;
             }
         }

web/js/chat.js

@@ -1,23 +1,21 @@
+var ip;
+$.ajax({
+	type: "GET",
+	url: "http://jsonip.appspot.com/?callback=?",
+	dataType: "jsonp",
+	success: function(getip) { ip = getip.ip; }
+	});
 function sendChat(me, message) {
-	var ip;
+	var data = '{"name":"'+ip+'","message":"'+message+'"}';
 	$.ajax({
-		type: "GET",
-		url: "http://jsonip.appspot.com/?callback=?",
-		dataType: "jsonp",
-		success: function(getip) {
-				var data = '{"name":"'+getip.ip+'","message":"'+message+'"}';
-				$.ajax({
-					type: 'POST',
-					url: 'up/sendmessage',
-					data: data,
-					dataType: 'json',
-					success: function(response) {
-						//handle response
-						if(response)
-							me.onPlayerChat('', response);
-				}
-			});
+		type: 'POST',
+		url: 'up/sendmessage',
+		data: data,
+		dataType: 'json',
+		success: function(response) {
+			//handle response
+			if(response)
+				me.onPlayerChat('', response);
 		}
 	});
 }
-//curl -d '{"name":"Nickname","message":"Hello"}' http://localhost:8123/up/sendmessage

web/js/map.js

@@ -213,8 +213,11 @@ DynMap.prototype = {
 					.keydown(function(event) {
 						if (event.keyCode == '13') {
 							event.preventDefault();
-							sendChat(me, chatinput.val());
-							chatinput.val('');
+							if(chatinput.val() != '')
+							{
+								sendChat(me, chatinput.val());
+								chatinput.val('');
+							}
 						}
 					})
 					.appendTo(chat);

web/standalone/sendmessage.php

@@ -1,10 +1,11 @@
 <?php
-$msginterval = 5; //In seconds - add this to dynmap web config??
-
 session_start();
+
+$config =  json_decode(file_get_contents('dynmap_config.json'), true);
+$msginterval = $config['webchat-interval'];
+
 if($_SERVER['REQUEST_METHOD'] == 'POST' && $_SESSION['lastchat'] < time())
 {
-	$config =  json_decode(file_get_contents('dynmap_config.json'), true);
 	$micro = explode(' ', microtime());
 	$timestamp = $micro[1].round($micro[0]*1000);
 	
@@ -25,8 +26,7 @@ if($_SERVER['REQUEST_METHOD'] == 'POST' && $_SESSION['lastchat'] < time())
 }
 elseif($_SERVER['REQUEST_METHOD'] == 'POST' && $_SESSION['lastchat'] > time())
 {
-	echo json_encode('You may only chat once every '.$msginterval.' seconds.');
+	echo json_encode(str_replace('%interval%', $msginterval, $config['spammessage']));
 }
 
-
 ?>