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check_website.html
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check_website.html
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<!DOCTYPE html>
<html>
<head>
<title>Checking the source files of Password-Manager website...</title>
</head>
<body>
<div>If check is valid, you will be redirected to main website</div><br /><hr />
<div id="info" style="color:red"></div>
</body>
<script type="text/javascript">
WEBSITE = "https://YOUR WEBSITE/";
CORRECT_MD5 = "RUN THIS HTML ONCE AND GET CORRECT MD5. PUT IT HERE";
</script>
<script type="text/javascript">
// code from https://stackoverflow.com/questions/1655769/fastest-md5-implementation-in-javascript
MD5 = function(e) {
function h(a, b) {
var c, d, e, f, g;
e = a & 2147483648;
f = b & 2147483648;
c = a & 1073741824;
d = b & 1073741824;
g = (a & 1073741823) + (b & 1073741823);
return c & d ? g ^ 2147483648 ^ e ^ f : c | d ? g & 1073741824 ? g ^ 3221225472 ^ e ^ f : g ^ 1073741824 ^ e ^ f : g ^ e ^ f
}
function k(a, b, c, d, e, f, g) {
a = h(a, h(h(b & c | ~b & d, e), g));
return h(a << f | a >>> 32 - f, b)
}
function l(a, b, c, d, e, f, g) {
a = h(a, h(h(b & d | c & ~d, e), g));
return h(a << f | a >>> 32 - f, b)
}
function m(a, b, d, c, e, f, g) {
a = h(a, h(h(b ^ d ^ c, e), g));
return h(a << f | a >>> 32 - f, b)
}
function n(a, b, d, c, e, f, g) {
a = h(a, h(h(d ^ (b | ~c), e), g));
return h(a << f | a >>> 32 - f, b)
}
function p(a) {
var b = "",
d = "",
c;
for (c = 0; 3 >= c; c++) d = a >>> 8 * c & 255, d = "0" + d.toString(16), b += d.substr(d.length - 2, 2);
return b
}
var f = [],
q, r, s, t, a, b, c, d;
e = function(a) {
a = a.replace(/\r\n/g, "\n");
for (var b = "", d = 0; d < a.length; d++) {
var c = a.charCodeAt(d);
128 > c ? b += String.fromCharCode(c) : (127 < c && 2048 > c ? b += String.fromCharCode(c >> 6 | 192) : (b += String.fromCharCode(c >> 12 | 224), b += String.fromCharCode(c >> 6 & 63 | 128)), b += String.fromCharCode(c & 63 | 128))
}
return b
}(e);
f = function(b) {
var a, c = b.length;
a = c + 8;
for (var d = 16 * ((a - a % 64) / 64 + 1), e = Array(d - 1), f = 0, g = 0; g < c;) a = (g - g % 4) / 4, f = g % 4 * 8, e[a] |= b.charCodeAt(g) << f, g++;
a = (g - g % 4) / 4;
e[a] |= 128 << g % 4 * 8;
e[d - 2] = c << 3;
e[d - 1] = c >>> 29;
return e
}(e);
a = 1732584193;
b = 4023233417;
c = 2562383102;
d = 271733878;
for (e = 0; e < f.length; e += 16) q = a, r = b, s = c, t = d, a = k(a, b, c, d, f[e + 0], 7, 3614090360), d = k(d, a, b, c, f[e + 1], 12, 3905402710), c = k(c, d, a, b, f[e + 2], 17, 606105819), b = k(b, c, d, a, f[e + 3], 22, 3250441966), a = k(a, b, c, d, f[e + 4], 7, 4118548399), d = k(d, a, b, c, f[e + 5], 12, 1200080426), c = k(c, d, a, b, f[e + 6], 17, 2821735955), b = k(b, c, d, a, f[e + 7], 22, 4249261313), a = k(a, b, c, d, f[e + 8], 7, 1770035416), d = k(d, a, b, c, f[e + 9], 12, 2336552879), c = k(c, d, a, b, f[e + 10], 17, 4294925233), b = k(b, c, d, a, f[e + 11], 22, 2304563134), a = k(a, b, c, d, f[e + 12], 7, 1804603682), d = k(d, a, b, c, f[e + 13], 12, 4254626195), c = k(c, d, a, b, f[e + 14], 17, 2792965006), b = k(b, c, d, a, f[e + 15], 22, 1236535329), a = l(a, b, c, d, f[e + 1], 5, 4129170786), d = l(d, a, b, c, f[e + 6], 9, 3225465664), c = l(c, d, a, b, f[e + 11], 14, 643717713), b = l(b, c, d, a, f[e + 0], 20, 3921069994), a = l(a, b, c, d, f[e + 5], 5, 3593408605), d = l(d, a, b, c, f[e + 10], 9, 38016083), c = l(c, d, a, b, f[e + 15], 14, 3634488961), b = l(b, c, d, a, f[e + 4], 20, 3889429448), a = l(a, b, c, d, f[e + 9], 5, 568446438), d = l(d, a, b, c, f[e + 14], 9, 3275163606), c = l(c, d, a, b, f[e + 3], 14, 4107603335), b = l(b, c, d, a, f[e + 8], 20, 1163531501), a = l(a, b, c, d, f[e + 13], 5, 2850285829), d = l(d, a, b, c, f[e + 2], 9, 4243563512), c = l(c, d, a, b, f[e + 7], 14, 1735328473), b = l(b, c, d, a, f[e + 12], 20, 2368359562), a = m(a, b, c, d, f[e + 5], 4, 4294588738), d = m(d, a, b, c, f[e + 8], 11, 2272392833), c = m(c, d, a, b, f[e + 11], 16, 1839030562), b = m(b, c, d, a, f[e + 14], 23, 4259657740), a = m(a, b, c, d, f[e + 1], 4, 2763975236), d = m(d, a, b, c, f[e + 4], 11, 1272893353), c = m(c, d, a, b, f[e + 7], 16, 4139469664), b = m(b, c, d, a, f[e + 10], 23, 3200236656), a = m(a, b, c, d, f[e + 13], 4, 681279174), d = m(d, a, b, c, f[e + 0], 11, 3936430074), c = m(c, d, a, b, f[e + 3], 16, 3572445317), b = m(b, c, d, a, f[e + 6], 23, 76029189), a = m(a, b, c, d, f[e + 9], 4, 3654602809), d = m(d, a, b, c, f[e + 12], 11, 3873151461), c = m(c, d, a, b, f[e + 15], 16, 530742520), b = m(b, c, d, a, f[e + 2], 23, 3299628645), a = n(a, b, c, d, f[e + 0], 6, 4096336452), d = n(d, a, b, c, f[e + 7], 10, 1126891415), c = n(c, d, a, b, f[e + 14], 15, 2878612391), b = n(b, c, d, a, f[e + 5], 21, 4237533241), a = n(a, b, c, d, f[e + 12], 6, 1700485571), d = n(d, a, b, c, f[e + 3], 10, 2399980690), c = n(c, d, a, b, f[e + 10], 15, 4293915773), b = n(b, c, d, a, f[e + 1], 21, 2240044497), a = n(a, b, c, d, f[e + 8], 6, 1873313359), d = n(d, a, b, c, f[e + 15], 10, 4264355552), c = n(c, d, a, b, f[e + 6], 15, 2734768916), b = n(b, c, d, a, f[e + 13], 21, 1309151649), a = n(a, b, c, d, f[e + 4], 6, 4149444226), d = n(d, a, b, c, f[e + 11], 10, 3174756917), c = n(c, d, a, b, f[e + 2], 15, 718787259), b = n(b, c, d, a, f[e + 9], 21, 3951481745), a = h(a, q), b = h(b, r), c = h(c, s), d = h(d, t);
return (p(a) + p(b) + p(c) + p(d)).toLowerCase()
};
function get_content(address){
var opts = {
method: 'GET'
};
return fetch(address, opts)
.then(function (response){
return response.text();
})
}
get_content('file_lists.txt')
.then(function(list){
var promises = [];
list = list.trim().split("\n");
for(let i of list){
promises.push(get_content(WEBSITE+i));
}
return Promise.all(promises)
})
.then(function(items){
results = "";
for(let i of items) results = results + MD5(i) + '<br />';
// you can manually debug by changing MD5(results) to results. So you know which file is wrong.
return Promise.resolve(MD5(results));
})
.then(function(md5val){
if(md5val == CORRECT_MD5) {
window.location.href = WEBSITE;
document.getElementById("info").innerHTML = "MD5 verification passed!";
}
else{
var text = "MD5 verification failed!<br />Expected: " + CORRECT_MD5 + "<br />Actual: " + md5val;
document.getElementById("info").innerHTML = text;
}
})
.catch(function(){
document.getElementById("info").innerHTML = "Check failed. Are all files in file_lists.txt accessible? Check console for details";
});
</script>
</html>