WebSocket Hook
This script should not be not be installed directly. It is a library for other scripts to include with the meta directive // @require https://update.greasyfork.org/scripts/432651/976567/WS%20Hook.js
var webHook=(function() {
'use strict';
var backup={};
var api={
filter:(args)=>{return true;},
WSList:[],
messageHandler:(event)=>{
var e = new Event('globalWebsocketMessage')
e.data=event.data
window.document.dispatchEvent(e);
},
closeHandler:(event)=>{
var e = new Event('globalWebsocketClose')
e.data=event.data
window.document.dispatchEvent(e);
event.target.removeEventListener('message', api.messageHandler);
event.target.removeEventListener('close', api.closeHandler);
},
beginSend:(webSocket,args)=>{return args;},
endSend:(webSocket,args)=>{},
filterSend:(webSocket,args)=>{return true;}
}
backup.WebSocket=window.WebSocket;
window.WebSocket=new Proxy(window.WebSocket,{
construct:function(target,args){
var ws=new target(...args);
if(api.filter(args)){
api.WSList.push(ws);
ws.addEventListener('message', api.messageHandler);
ws.addEventListener('close', api.closeHandler);
backup.WSSend=ws.send;
ws.send= new Proxy(ws.send, {
apply: function(target, _this, _arguments) {
if(ws.readyState === ws.OPEN && api.filterSend(_this, _arguments)){
_arguments=api.beginSend(_this,_arguments)
Function.prototype.apply.apply(target, [_this, _arguments]);
api.endSend(_this,_arguments);
}
}
});
}
return ws;}
});
console.log(api);
return api;
})();