From 557ba42ea72b458c39fc0da5ef70dbd91fce252c Mon Sep 17 00:00:00 2001 From: Michael Micsen Johannessen Wehus Date: Sat, 8 Apr 2023 00:10:38 +0100 Subject: [PATCH] Simplified --- bintoflp.html | 121 -------------------------------------------------- index.html | 100 +++++++++++++++++++---------------------- script.js | 106 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 152 insertions(+), 175 deletions(-) delete mode 100644 bintoflp.html create mode 100644 script.js diff --git a/bintoflp.html b/bintoflp.html deleted file mode 100644 index ea7049e..0000000 --- a/bintoflp.html +++ /dev/null @@ -1,121 +0,0 @@ - - - - - -

My First JavaScript

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I take absolutely no liabilty for use please verify the files yourself before writing to a card you can end up - locking it

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Paste your .nfc file content here

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My First JavaScript

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Mifare classic converter

I take absolutely no liabilty for use please verify the files yourself before writing to a card you can end up - locking it

+ bricking your cards.

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Paste your .nfc file content here

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.nfc file content here

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+ \ No newline at end of file diff --git a/script.js b/script.js new file mode 100644 index 0000000..7e75daa --- /dev/null +++ b/script.js @@ -0,0 +1,106 @@ +function downloadBinFile(dataAsHexStr, fileName) { + var bin = new Array(); + for (var i = 0; i < dataAsHexStr.length / 2; i++) { + var h = dataAsHexStr.substr(i * 2, 2); + bin[i] = parseInt(h, 16); + } + console.log(dataAsHexStr) + + var byteArray = new Uint8Array(bin); + var a = window.document.createElement('a'); + + a.href = window.URL.createObjectURL(new Blob([byteArray], { type: 'application/octet-stream' })); + a.download = fileName; + + // Append anchor to body. + document.body.appendChild(a) + a.click(); + + // Remove anchor from body + document.body.removeChild(a) +} + +function downloadTextFile(text, filename) { + var element = document.createElement('a'); + element.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(text)); + element.setAttribute('download', filename); + + element.style.display = 'none'; + document.body.appendChild(element); + + element.click(); + + document.body.removeChild(element); +} + + +function generateNfcFromBinary(data, uidLength = 4) { + const dataLen = data.length; + const uid = data.slice(0, uidLength); + if (dataLen != 1024 && dataLen != 4096) { + alert("Invalid data length"); + return; + } + const classicType = (dataLen == 1024) ? "1K" : "4K"; + const header = + `#Generated at https://micsen.github.io/flipperNfcToBin/ +Filetype: Flipper NFC device +Version: 3 +# Nfc device type can be UID, Mifare Ultralight, Mifare Classic +Device type: Mifare Classic +# UID, ATQA and SAK are common for all formats +UID: ${printHex(uid)} +ATQA: ${(uidLength == 4) ? "00 04" : "00 44"} +SAK: 08 +# Mifare Classic specific data +Mifare Classic type: ${classicType} +Data format version: 2 +# Mifare Classic blocks, '??' means unknown data +` + let dataStr = ""; + for (let i = 0; i < data.length; i += 16) { + const block = i / 16 + let bytes = printHex(data.slice(i, i + 16)) + dataStr += "Block " + block + ": " + bytes + "\n" + } + return header + dataStr; +} + + +function getBinaryFromFile(file) { + return new Promise((resolve, reject) => { + const reader = new FileReader(); + reader.onload = (e) => { + const data = new Uint8Array(e.target.result); + resolve(data); + }; + reader.onerror = (e) => { + reject(e); + }; + reader.readAsArrayBuffer(file); + }); +} + + +function getTextFromFile(file) { + return new Promise((resolve, reject) => { + const reader = new FileReader(); + reader.onload = (e) => { + const data = e.target.result + resolve(data); + }; + reader.onerror = (e) => { + reject(e); + }; + reader.readAsText(file); + }); +} + +function printHex(data, lsbFirst = false) { + var hex = ""; + for (var i = 0; i < data.length; i++) { + j = (lsbFirst) ? data.length - i - 1 : i; + hex += data[j].toString(16).padStart(2, '0') + " "; + } + return hex.trim(); +} \ No newline at end of file