☰

Library for intercepting AJAX communications

Browserify'd version of ajax-interceptor

Version vom 01.08.2015. Aktuellste Version

Dieses Skript sollte nicht direkt installiert werden. Es handelt sich hier um eine Bibliothek für andere Skripte, welche über folgenden Befehl in den Metadaten eines Skriptes eingebunden wird // @require https://update.greasyfork.org/scripts/11365/65323/Library%20for%20intercepting%20AJAX%20communications.js 

// ==UserScript==
// @name Library for intercepting AJAX communications
// @version 1.0
// @author slorber (sauce: https://github.com/slorber/ajax-interceptor)
// @description Browserify'd version of ajax-interceptor
// @namespace MrHat.Torn
// ==/UserScript==


require=(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({"ajax-intercept":[function(require,module,exports){
'use strict';

var COMPLETED_READY_STATE = 4;

var RealXHRSend = XMLHttpRequest.prototype.send;

var requestCallbacks = [];
var responseCallbacks = [];


var wired = false;


function arrayRemove(array,item) {
    var index = array.indexOf(item);
    if (index > -1) {
        array.splice(index, 1);
    } else {
        throw new Error("Could not remove " + item + " from array");
    }
}


function fireCallbacks(callbacks,xhr) {
    for( var i = 0; i < callbacks.length; i++ ) {
        callbacks[i](xhr);
    }
}


exports.addRequestCallback = function(callback) {
    requestCallbacks.push(callback);
};
exports.removeRequestCallback = function(callback) {
    arrayRemove(requestCallbacks,callback);
};


exports.addResponseCallback = function(callback) {
    responseCallbacks.push(callback);
};
exports.removeResponseCallback = function(callback) {
    arrayRemove(responseCallbacks,callback);
};



function fireResponseCallbacksIfCompleted(xhr) {
    if( xhr.readyState === COMPLETED_READY_STATE ) {
        fireCallbacks(responseCallbacks,xhr);
    }
}

function proxifyOnReadyStateChange(xhr) {
    var realOnReadyStateChange = xhr.onreadystatechange;
    if ( realOnReadyStateChange ) {
        xhr.onreadystatechange = function() {
            fireResponseCallbacksIfCompleted(xhr);
            realOnReadyStateChange();
        };
    }
}

exports.wire = function() {
    if ( wired ) throw new Error("Ajax interceptor already wired");

    // Override send method of all XHR requests
    XMLHttpRequest.prototype.send = function() {

        // Fire request callbacks before sending the request
        fireCallbacks(requestCallbacks,this);

        // Wire response callbacks
        if( this.addEventListener ) {
            var self = this;
            this.addEventListener("readystatechange", function() {
                fireResponseCallbacksIfCompleted(self);
            }, false);
        }
        else {
            proxifyOnReadyStateChange(this);
        }

        RealXHRSend.apply(this, arguments);
    };
    wired = true;
};


exports.unwire = function() {
    if ( !wired ) throw new Error("Ajax interceptor not currently wired");
    XMLHttpRequest.prototype.send = RealXHRSend;
    wired = false;
};
},{}]},{},[]);