224 lines
7.1 KiB
HTML
224 lines
7.1 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>JSDoc: Source: encode/base64.js</title>
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<script src="scripts/prettify/prettify.js"> </script>
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<script src="scripts/prettify/lang-css.js"> </script>
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<!--[if lt IE 9]>
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<script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
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<![endif]-->
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<link type="text/css" rel="stylesheet" href="styles/prettify-tomorrow.css">
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</head>
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<body>
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<div id="main">
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<h1 class="page-title">Source: encode/base64.js</h1>
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<section>
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<article>
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<pre class="prettyprint source linenums"><code>//
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// Copyright (c) 2006-2024 Wade Alcorn - wade@bindshell.net
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// Browser Exploitation Framework (BeEF) - https://beefproject.com
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// See the file 'doc/COPYING' for copying permission
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//
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// Base64 code from http://stackoverflow.com/questions/3774622/how-to-base64-encode-inside-of-javascript/3774662#3774662
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beef.encode = {};
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/**
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* Base64 code from http://stackoverflow.com/questions/3774622/how-to-base64-encode-inside-of-javascript/3774662#3774662
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* @namespace beef.encode.base64
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*/
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beef.encode.base64 = {
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keyStr: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
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/**
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* @memberof beef.encode.base64
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* @param {string} input
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* @return {string}
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*/
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encode : function (input) {
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if (window.btoa) {
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return btoa(unescape(encodeURIComponent(input)));
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}
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var output = "";
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var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
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var i = 0;
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input = beef.encode.base64.utf8_encode(input);
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while (i < input.length) {
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chr1 = input.charCodeAt(i++);
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chr2 = input.charCodeAt(i++);
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chr3 = input.charCodeAt(i++);
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enc1 = chr1 >> 2;
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enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
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enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
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enc4 = chr3 & 63;
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if (isNaN(chr2)) {
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enc3 = enc4 = 64;
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} else if (isNaN(chr3)) {
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enc4 = 64;
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}
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output = output +
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this.keyStr.charAt(enc1) + this.keyStr.charAt(enc2) +
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this.keyStr.charAt(enc3) + this.keyStr.charAt(enc4);
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}
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return output;
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},
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/**
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* @memberof beef.encode.base64
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* @param {string} input
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* @return {string}
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*/
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decode : function (input) {
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if (window.atob) {
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return escape(atob(input));
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}
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var output = "";
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var chr1, chr2, chr3;
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var enc1, enc2, enc3, enc4;
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var i = 0;
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input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
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while (i < input.length) {
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enc1 = this.keyStr.indexOf(input.charAt(i++));
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enc2 = this.keyStr.indexOf(input.charAt(i++));
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enc3 = this.keyStr.indexOf(input.charAt(i++));
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enc4 = this.keyStr.indexOf(input.charAt(i++));
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chr1 = (enc1 << 2) | (enc2 >> 4);
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chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
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chr3 = ((enc3 & 3) << 6) | enc4;
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output = output + String.fromCharCode(chr1);
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if (enc3 != 64) {
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output = output + String.fromCharCode(chr2);
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}
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if (enc4 != 64) {
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output = output + String.fromCharCode(chr3);
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}
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}
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output = beef.encode.base64.utf8_decode(output);
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return output;
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},
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/**
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* @memberof beef.encode.base64
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* @param {string} string
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* @return {string}
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*/
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utf8_encode : function (string) {
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string = string.replace(/\r\n/g,"\n");
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var utftext = "";
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for (var n = 0; n < string.length; n++) {
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var c = string.charCodeAt(n);
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if (c < 128) {
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utftext += String.fromCharCode(c);
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}
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else if((c > 127) && (c < 2048)) {
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utftext += String.fromCharCode((c >> 6) | 192);
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utftext += String.fromCharCode((c & 63) | 128);
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}
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else {
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utftext += String.fromCharCode((c >> 12) | 224);
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utftext += String.fromCharCode(((c >> 6) & 63) | 128);
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utftext += String.fromCharCode((c & 63) | 128);
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}
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}
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return utftext;
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},
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/**
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* @memberof beef.encode.base64
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* @param {string} utftext
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* @return {string}
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*/
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utf8_decode : function (utftext) {
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var string = "";
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var i = 0;
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var c = c1 = c2 = 0;
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while ( i < utftext.length ) {
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c = utftext.charCodeAt(i);
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if (c < 128) {
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string += String.fromCharCode(c);
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i++;
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}
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else if((c > 191) && (c < 224)) {
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c2 = utftext.charCodeAt(i+1);
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string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
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i += 2;
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}
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else {
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c2 = utftext.charCodeAt(i+1);
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c3 = utftext.charCodeAt(i+2);
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string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
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i += 3;
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}
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}
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return string;
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}
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};
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beef.regCmp('beef.encode.base64');
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</code></pre>
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</article>
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</section>
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</div>
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<nav>
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<h2><a href="index.html">Home</a></h2><h3>Namespaces</h3><ul><li><a href="BeefJS.html">BeefJS</a></li><li><a href="beef.are.html">are</a></li><li><a href="beef.browser.html">browser</a></li><li><a href="beef.browser.cookie.html">cookie</a></li><li><a href="beef.browser.popup.html">popup</a></li><li><a href="beef.dom.html">dom</a></li><li><a href="beef.encode.base64.html">base64</a></li><li><a href="beef.encode.json.html">json</a></li><li><a href="beef.geolocation.html">geolocation</a></li><li><a href="beef.hardware.html">hardware</a></li><li><a href="beef.init.html">init</a></li><li><a href="beef.logger.html">logger</a></li><li><a href="beef.mitb.html">mitb</a></li><li><a href="beef.net.html">net</a></li><li><a href="beef.net.connection.html">connection</a></li><li><a href="beef.net.cors.html">cors</a></li><li><a href="beef.net.dns.html">dns</a></li><li><a href="beef.net.local.html">local</a></li><li><a href="beef.net.portscanner.html">portscanner</a></li><li><a href="beef.net.requester.html">requester</a></li><li><a href="beef.net.xssrays.html">xssrays</a></li><li><a href="beef.os.html">os</a></li><li><a href="beef.session.html">session</a></li><li><a href="beef.timeout.html">timeout</a></li><li><a href="beef.updater.html">updater</a></li><li><a href="beef.webrtc.html">webrtc</a></li><li><a href="beef.websocket.html">websocket</a></li></ul><h3>Global</h3><ul><li><a href="global.html#platform">platform</a></li></ul>
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Documentation generated by <a href="https://github.com/jsdoc/jsdoc">JSDoc 4.0.3</a> on Fri Oct 04 2024 17:02:30 GMT+1000 (Australian Eastern Standard Time)
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