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index.html
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<!DOCTYPE html><html><head>
<script type="text/javascript">//<![CDATA[
var VanillaRunOnDomReady = function() {
var Base64 = {
_keyStr: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
encode: function(input) {
var output = "";
var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
var i = 0;
input = Base64._utf8_encode(input);
while (i < input.length) {
chr1 = input.charCodeAt(i++);
chr2 = input.charCodeAt(i++);
chr3 = input.charCodeAt(i++);
enc1 = chr1 >> 2;
enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
enc4 = chr3 & 63;
if (isNaN(chr2)) {
enc3 = enc4 = 64;
} else if (isNaN(chr3)) {
enc4 = 64;
}
output = output + this._keyStr.charAt(enc1) + this._keyStr.charAt(enc2) + this._keyStr.charAt(enc3) + this._keyStr.charAt(enc4);
}
return output;
},
decode: function(input) {
var output = "";
var chr1, chr2, chr3;
var enc1, enc2, enc3, enc4;
var i = 0;
input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
while (i < input.length) {
enc1 = this._keyStr.indexOf(input.charAt(i++));
enc2 = this._keyStr.indexOf(input.charAt(i++));
enc3 = this._keyStr.indexOf(input.charAt(i++));
enc4 = this._keyStr.indexOf(input.charAt(i++));
chr1 = (enc1 << 2) | (enc2 >> 4);
chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
chr3 = ((enc3 & 3) << 6) | enc4;
output = output + String.fromCharCode(chr1);
if (enc3 != 64) {
output = output + String.fromCharCode(chr2);
}
if (enc4 != 64) {
output = output + String.fromCharCode(chr3);
}
}
output = Base64._utf8_decode(output);
return output;
},
_utf8_encode: function(string) {
string = string.replace(/\r\n/g, "\n");
var utftext = "";
for (var n = 0; n < string.length; n++) {
var c = string.charCodeAt(n);
if (c < 128) {
utftext += String.fromCharCode(c);
} else if ((c > 127) && (c < 2048)) {
utftext += String.fromCharCode((c >> 6) | 192);
utftext += String.fromCharCode((c & 63) | 128);
} else {
utftext += String.fromCharCode((c >> 12) | 224);
utftext += String.fromCharCode(((c >> 6) & 63) | 128);
utftext += String.fromCharCode((c & 63) | 128);
}
}
return utftext;
},
_utf8_decode: function(utftext) {
var string = "";
var i = 0;
var c = c1 = c2 = 0;
while (i < utftext.length) {
c = utftext.charCodeAt(i);
if (c < 128) {
string += String.fromCharCode(c);
i++;
} else if ((c > 191) && (c < 224)) {
c2 = utftext.charCodeAt(i + 1);
string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
i += 2;
} else {
c2 = utftext.charCodeAt(i + 1);
c3 = utftext.charCodeAt(i + 2);
string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
i += 3;
}
}
return string;
}
}
var encode = document.getElementById('encode'),
decode = document.getElementById('decode'),
output = document.getElementById('output'),
input = document.getElementById('input');
encode.onclick = function() {
output.innerHTML = Base64.encode(input.value);
}
decode.onclick = function() {
var $str = output.innerHTML;
output.innerHTML = Base64.decode($str);
}
}
var alreadyrunflag = 0;
if (document.addEventListener)
document.addEventListener("DOMContentLoaded", function(){
alreadyrunflag=1;
VanillaRunOnDomReady();
}, false);
else if (document.all && !window.opera) {
document.write('<script type="text/javascript" id="contentloadtag" defer="defer" src="javascript:void(0)"><\/script>');
var contentloadtag = document.getElementById("contentloadtag")
contentloadtag.onreadystatechange=function(){
if (this.readyState=="complete"){
alreadyrunflag=1;
VanillaRunOnDomReady();
}
}
}
window.onload = function(){
setTimeout("if (!alreadyrunflag){VanillaRunOnDomReady}", 0);
}//]]>
</script>
<style>
input[type=text] {
width: 100%;
height: 150px;
padding: 12px 20px;
box-sizing: border-box;
border: 2px solid #ccc;
border-radius: 4px;
background-color: #f8f8f8;
font-size: 16px;
resize: none;
}
</style>
<style type="text/css">
<!--
body {background: black; color: white ;}
form {margin: 0;}
h1 {font-family: Arial, sans-serif; line-height: 0.85em; border-bottom: 2px solid;
margin-bottom: 0.33em; padding-bottom: 0;}
textarea {background: #EEF;}
#footer {border-top: 1px solid #000; color: #999; font: italic 75% sans-serif;}
#footer p {margin: 0 0 1em 0;}
#footer img {float: right; margin: 0 0 0.5em 2em;}
-->
</style>
<script type="text/javascript">
function encode2() {
var obj = document.getElementById('dencoder');
var unencoded = obj.value;
obj.value = encodeURIComponent(unencoded).replace(/'/g,"%27").replace(/"/g,"%22");
}
function decode2() {
var obj = document.getElementById('dencoder');
var encoded = obj.value;
obj.value = decodeURIComponent(encoded.replace(/\+/g, " "));
}
</script>
</head>
<body>
<form onsubmit="return false;">
<h1>Base64 Decoder/Encoder</h1>
input <br>
<textarea cols="100" rows="10" id="input"></textarea><br/>
<button id="encode">Encode</button>
<button id="decode">Decode</button><br/>
<textarea cols="100" rows="10" id="output"></textarea>
<br/><br/>
<form onsubmit="return false;">
<h1>URL Decoder/Encoder</h1>
<textarea cols="100" rows="20" id="dencoder"></textarea>
<div>
<input type="button" onclick="decode2()" value="Decode">
<input type="button" onclick="encode2()" value="Encode">
</div>
<ul>
<li>Input a string of text and encode or decode it as you like.</li>
<li>Handy for turning encoded JavaScript URLs from complete gibberish into readable gibberish.</li>
<li>If you'd like to have the URL Decoder/Encoder & Base64 Decoder/Encoder for offline use,
just view source and save to your hard drive.</li>
</ul>
</form>
<div id="footer">
<img alt="Creative Commons License" border="0" src="http://creativecommons.org/images/public/somerights.gif">
<p>
<br>
The Encoder/Decoder is licensed under a Creative Commons<br/> <a href="http://creativecommons.org/licenses/by-sa/2.0/" rel="license">Attribution-ShareAlike 2.0</a> License.
</p>
2017 - 7 ™
Farzad Yousefi | <a href="//Farzad-Yousefi.ir" style="color:#ccc;text-decoration:none;">Blog</a>
open source
Github | <a href="https://github.com/F7D/Encoder-Decoder" style="color:#ccc;text-decoration:none;">source</a>
</div>
</body>
</html>