Merge pull request #303 from zuzak/rc

Add UDP packet functionality

modules/udp/README.md

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+# UDP 
+Prints UDP packets; designed for a [MediaWiki installation](https://www.mediawiki.org/wiki/Manual:$wgRC2UDPAddress).
+
+# Configuration
+## server
+The server name, as configured in the main ``config.json``, that depressionbot will announce packets on.
+## channel
+The channel name, that depressionbot will announce packets on.
+## port
+The port depressionbot will listen for UDP packets on.
+## address
+The address depressionbot will allow UDP packets from. UDP packets sent from a different address will be ignored.

modules/udp/config.json

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+{
+    "port":14628,
+    "address": "127.0.0.1",
+    "server": "freenode",
+    "channel": "#oaosidl"
+}

modules/udp/udp.js

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+/**
+ * Module Name: UDP 
+ * Description: Relays UDP packets, intended for
+ * a feed of RecentChanges on a MediaWiki install.
+ */
+var dgram = require('dgram');
+
+var udp = function(dbot) {
+    var server = dgram.createSocket("udp4");
+    server.on("message", function(msg, msginfo) {
+        var message = msg.toString();
+        console.log(message);
+        if (msginfo.address == dbot.config.udp.address) {
+            dbot.say(dbot.config.udp.server, dbot.config.udp.channel, message);
+        }
+    });
+    server.bind(dbot.config.udp.port);
+};
+
+exports.fetch = function(dbot) {
+    return new udp(dbot);
+};