Compare commits
2 Commits
| Author | SHA1 | Date | |
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557ba42ea7 | ||
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27046c08d5 |
100
index.html
100
index.html
@@ -3,18 +3,41 @@
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<body>
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<h2>My First JavaScript</h2>
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<h2>Mifare classic converter</h2>
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<p>I take absolutely no liabilty for use please verify the files yourself before writing to a card you can end up
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locking it</p>
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bricking your cards.</p>
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<script src="./script.js"></script>
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<script>
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const blocks = 64 // Number of blocks to rea
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let cardSize = 1024 //1k card
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let blocks = 64 // 1k card
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let filename = Date.now()
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function download(filename) {
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var element = document.createElement('a');
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document.addEventListener("DOMContentLoaded", function (event) {
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const nfc = document.getElementById("nfc");
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document.getElementById("file-selector").addEventListener("change", (event) => {
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console.log(event.target.files[0])
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if (event.target.files[0].name.endsWith(".bin")) {
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getBinaryFromFile(event.target.files[0]).then((data) => {
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filename = event.target.files[0].name.replace(".bin", "")
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const hexStr = generateNfcFromBinary(data);
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nfc.value = hexStr;
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})
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} else if (event.target.files[0].name.endsWith(".nfc")) {
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getTextFromFile(event.target.files[0]).then((data) => {
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filename = event.target.files[0].name.replace(".nfc", "")
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nfc.value = data;
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})
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} else {
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alert("Invalid file type");
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return
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}
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});
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});
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function bin() {
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let array = new Array(blocks)
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const nfc = document.getElementById("nfc");
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const nfc = document.getElementById("nfc");
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var text = nfc.value.split("\n");
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@@ -33,6 +56,7 @@
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}
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}
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let textHex = ""
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console.log("number of blocks", blocks)
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for (let i = 0; i < blocks; i++) {
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console.log('block', i, array[i])
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if (array[i] !== undefined && array[i]?.length == 32) {
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@@ -44,59 +68,27 @@
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textHex += '00000000000000000000000000000000'
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}
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}
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var filename = Date.now() + ".bin"
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console.log(textHex)
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var bin = new Array();
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for (var i = 0; i < textHex.length / 2; i++) {
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var h = textHex.substr(i * 2, 2);
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bin[i] = parseInt(h, 16);
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}
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var byteArray = new Uint8Array(bin);
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var a = window.document.createElement('a');
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a.href = window.URL.createObjectURL(new Blob([byteArray], { type: 'application/octet-stream' }));
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a.download = filename;
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// Append anchor to body.
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document.body.appendChild(a)
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a.click();
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// Remove anchor from body
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document.body.removeChild(a)
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downloadBinFile(textHex, filename + ".bin")
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}
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document.addEventListener("DOMContentLoaded", function (event) {
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const nfc = document.getElementById("nfc");
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// Allow for "Upload"
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const fileSelector = document.getElementById('file-selector');
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fileSelector.addEventListener('change', (event) => {
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const fileList = event.target.files;
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console.log(fileList);
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const reader = new FileReader();
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reader.addEventListener('load', (event) => {
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console.log(event.target.result)
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nfc.value = event.target.result;
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});
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reader.readAsText(event.target.files[0]);
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});
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})
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function nfc() {
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downloadTextFile(document.getElementById("nfc").value, filename + ".nfc")
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}
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</script>
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<button type="button" onclick="download('data.bin');">
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Click me to download your file</button>
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<p>Paste your .nfc file content here</p>
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<br />
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<input type="file" id="file-selector" accept=".nfc">
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<br />
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<textarea id="nfc" rows="20" cols="50"></textarea>
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<button type="button" onclick="bin()">
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Download .bin
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</button>
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<button type="button" onclick="nfc()">
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Download .nfc
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</button>
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<p>.nfc file content here</p>
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<br />
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<input type="file" id="file-selector" accept=".bin,.nfc">
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<br />
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<textarea id="nfc" rows="20" cols="90"></textarea>
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</body>
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</html>
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106
script.js
Normal file
106
script.js
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@@ -0,0 +1,106 @@
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function downloadBinFile(dataAsHexStr, fileName) {
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var bin = new Array();
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for (var i = 0; i < dataAsHexStr.length / 2; i++) {
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var h = dataAsHexStr.substr(i * 2, 2);
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bin[i] = parseInt(h, 16);
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}
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console.log(dataAsHexStr)
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var byteArray = new Uint8Array(bin);
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var a = window.document.createElement('a');
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a.href = window.URL.createObjectURL(new Blob([byteArray], { type: 'application/octet-stream' }));
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a.download = fileName;
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// Append anchor to body.
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document.body.appendChild(a)
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a.click();
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// Remove anchor from body
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document.body.removeChild(a)
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}
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function downloadTextFile(text, filename) {
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var element = document.createElement('a');
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element.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(text));
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element.setAttribute('download', filename);
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element.style.display = 'none';
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document.body.appendChild(element);
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element.click();
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document.body.removeChild(element);
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}
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function generateNfcFromBinary(data, uidLength = 4) {
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const dataLen = data.length;
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const uid = data.slice(0, uidLength);
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if (dataLen != 1024 && dataLen != 4096) {
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alert("Invalid data length");
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return;
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}
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const classicType = (dataLen == 1024) ? "1K" : "4K";
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const header =
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`#Generated at https://micsen.github.io/flipperNfcToBin/
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Filetype: Flipper NFC device
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Version: 3
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# Nfc device type can be UID, Mifare Ultralight, Mifare Classic
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Device type: Mifare Classic
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# UID, ATQA and SAK are common for all formats
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UID: ${printHex(uid)}
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ATQA: ${(uidLength == 4) ? "00 04" : "00 44"}
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SAK: 08
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# Mifare Classic specific data
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Mifare Classic type: ${classicType}
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Data format version: 2
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# Mifare Classic blocks, '??' means unknown data
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`
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let dataStr = "";
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for (let i = 0; i < data.length; i += 16) {
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const block = i / 16
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let bytes = printHex(data.slice(i, i + 16))
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dataStr += "Block " + block + ": " + bytes + "\n"
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}
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return header + dataStr;
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}
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function getBinaryFromFile(file) {
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return new Promise((resolve, reject) => {
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const reader = new FileReader();
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reader.onload = (e) => {
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const data = new Uint8Array(e.target.result);
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resolve(data);
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};
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reader.onerror = (e) => {
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reject(e);
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};
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reader.readAsArrayBuffer(file);
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});
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}
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function getTextFromFile(file) {
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return new Promise((resolve, reject) => {
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const reader = new FileReader();
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reader.onload = (e) => {
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const data = e.target.result
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resolve(data);
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};
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reader.onerror = (e) => {
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reject(e);
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};
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reader.readAsText(file);
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});
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}
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function printHex(data, lsbFirst = false) {
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var hex = "";
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for (var i = 0; i < data.length; i++) {
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j = (lsbFirst) ? data.length - i - 1 : i;
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hex += data[j].toString(16).padStart(2, '0') + " ";
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}
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return hex.trim();
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}
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