Calculate MD5 hash of file without the need to download it ( it's still downloads, bust just in the browser)
| <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" | |
| "http://www.w3.org/TR/html4/strict.dtd"> | |
| <html lang="en"> | |
| <head> | |
| <meta http-equiv="content-type" content="text/html; charset=utf-8"> | |
| <title>title</title> | |
| <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/3.1.9-1/crypto-js.js"></script> | |
| <script type="text/javascript"> | |
| function calculateMD5(blob) { | |
| return new Promise((resolve) => { | |
| const reader = new FileReader(); | |
| reader.readAsArrayBuffer(blob); | |
| reader.onloadend = function () { | |
| var wordArray = CryptoJS.lib.WordArray.create(reader.result), | |
| hash = CryptoJS.MD5(wordArray).toString(); | |
| resolve(hash) | |
| }; | |
| }) | |
| } | |
| function downloadAndCreateHash(){ | |
| const hashResultDiv = document.getElementById('hash-result') | |
| fetch(document.getElementById('url-input').value) | |
| .then(function(response) { | |
| return response.blob() | |
| }) | |
| .then(blob => { | |
| return calculateMD5(blob) | |
| }) | |
| .then(hash => { | |
| hashResultDiv.innerHTML = hash | |
| console.log(`Hash of the file is: ${hash}`) | |
| }) | |
| .catch(err => { | |
| hashResultDiv.innerHTML = err | |
| console.error(err) | |
| }); | |
| } | |
| </script> | |
| </head> | |
| <body style="text-align: center;"> | |
| <h1>Enter the url of the file:</h1> | |
| <input id="url-input" type="text" oninput="downloadAndCreateHash()" style="width: 400px"> | |
| <h2>MD5 hash of your file is:</h2> | |
| <div id="hash-result"> | |
| </div> | |
| </body> | |
| </html> |
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