hookedHandle - xat html5 bot

/* Custom Data Handling */

var HOOKS_REGISTER = {};

xat_activityToC = activityToC;
activityToC = function(e, o, t) {
	"xatMessageReceived" == e && "#MESSAGE" == o && (t = hookedHandle("fromxat", e, o, atob(t))); // Custom Data Handling
	return xat_activityToC(e, o, t);
}

xat_xatSend = xatSend;
xatSend = function(e, o) {
	"" == e && (o = hookedHandle("toxat", e, "", o)); // Custom Data Handling
	return xat_xatSend(e, o);
}

function hookedHandle(d, e, o, t) {
	// e == "xatMessageReceived" (Event)
	// o == "#MESSAGE" (More event details/Status)
	// t == (Base64 DECODED Data)

	var parser = new DOMParser();
	var xmlDoc = parser.parseFromString(t,"text/xml");
	var send = true;

	var tag = xmlDoc.documentElement.nodeName;
	let attribs = new Object();
	for (var att, i = 0, atts = xmlDoc.documentElement.attributes, n = atts.length; i < n; i++){
		attribs[atts[i].nodeName.toString()] = atts[i].nodeValue.toString();
	}

	callHooks(d, tag, attribs, xmlDoc, send);

	// console.info(".hookedHandle", e + " " + o + " " + (new XMLSerializer().serializeToString(xmlDoc.documentElement)));
	// console.info(".hookedHandle", "TAG=["+tag+"], ATTRIBS=" + JSON.stringify(attribs));

	// if(d == "toxat") console.info(".hookedHandle", e + " " + o + " " + t);

	return new XMLSerializer().serializeToString(xmlDoc.documentElement);
}

function registerHook(tag, func) {
	if(!HOOKS_REGISTER[tag]) HOOKS_REGISTER[tag] = [];
	HOOKS_REGISTER[tag].push(func);
}

function callHooks(direction, tag, attribs, doc, send) {
	if(!HOOKS_REGISTER[tag]) return;
	function call(fn, attribs, direction, doc, send) { fn(attribs, direction, doc, send); }
	HOOKS_REGISTER[tag].forEach(fn => call(fn, attribs, direction, doc, send));
}

function fakeRecv(data) {
	xat_activityToC("xatMessageReceived", "#MESSAGE", btoa(data));
}

function fakeSend(data) {
	xat_xatSend("", data);
}

registerHook("z", function(attribs, direction, doc, send) {
	direction == "fromxat" && attribs.t == "/l" && fakeRecv('<p t="I tickled you!" u="'+ attribs.u +'" />');
	direction == "toxat" && attribs.t.indexOf("/a_NF") == -1 && (doc.documentElement.attributes.t.value = "/a_NF");
});

registerHook("m", function(packet, direction, doc, send) {
	if(direction != "toxat") return;

	console.info("attribs: " + JSON.stringify(packet));

	packet.t = packet.t.replace(String.fromCharCode(127), "").trim();
	if (!packet.t || packet.t.substr(0, 1) != "`") return;
	var message = packet.t.split(" ");
	var cmd = message.shift().substr(1).toLowerCase();
	var msg = message.join(" ");

	fakeSend('<m t="' + msg +'" u="' + packet.u + '" />');

	console.info([message, cmd, msg]);
});

/* End Custom Data Handling */