First

.gitignore

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+node_modules

README.md

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+###NodeJS wrapper for LibNFC and MFOC
+***
+LibNFC and MFOC NodeJS wrapper to read/write hex dumps from/to ISO/IEC 14443 A compliant tags. 

index.js

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+const spawn     = require('child_process').spawn,
+      execFile  = require('child_process').execFile,
+      fs        = require('fs'),
+      console   = require('better-console'),
+      colors    = require('colors/safe');
+
+var re        = /(.{2}  .{2}  .{2}  .{2})/,
+    error     = { 'type' : 0, 'message' : '' };
+
+// Read Mifare Classic 1K UID
+// Returns new promise :
+//  - resolve(uid)
+//  - reject({error.type,error.message})
+function readMifareUID() {
+
+  return new Promise(function(resolve,reject){
+
+    execFile('nfc-list', (err, stdout, stderr) => {
+
+      error.message = stderr || "";
+      error.message = err  || "";
+
+      error.type = 0;
+
+      if(err || stderr)
+        reject(error);
+      else
+        resolve(extractUIDFromOutput(stdout));
+
+    });
+
+  });
+
+}
+
+// Prints Hex Data File to terminal
+// Input : path to the file, cb Callback function to execute after reading file
+// Output : null
+function readHexFile(path,cb){
+  fs.readFile(path, function(err, code){
+
+    var buffer  = [[]],
+        index   = 0;
+
+    code.forEach(function(el){
+
+      buffer[index].push(el.toString(16));
+
+      if(buffer[index].length == 16){
+        buffer.push([]);
+        index++;
+      }
+    });
+
+    console.table(buffer);
+
+    if(cb && typeof cb === 'function')
+      cb(buffer);
+
+  });
+}
+
+// Reads Mifare Classic 1K tag and writes dump to path
+// Input : Path to the file
+// Output : Promise that will be resolved after reading created file
+function readMifareClassic(path){
+  return new Promise(function(resolve,reject){
+    writeMifareDumpToFile(path,resolve,reject).then(function(path){
+      readHexFile(path);
+      resolve();
+    },function(err){
+      reject(err);
+    });
+  });
+}
+
+// Write Mifare Dumb to file
+// Input : Path to the file
+// Output : Promise that will be resolved when file is written
+function writeMifareDumpToFile(path){
+  return new Promise(function(resolve,reject){
+
+    console.log(colors.blue('Please wait while trying to authenticate to the tag...'));
+
+    execFile('mfoc', ['-O' + path].concat(keys), (err, stdout, stderr) => {
+
+      error.message = stderr || "";
+      error.message = err  || "";
+
+      error.type = 1;
+
+      if(err || stderr)
+        reject(error);
+      else
+        resolve(path);
+
+    });
+  });
+}
+
+function cloneMifareClassic(source,target,unlock,callback){
+
+  var params = (unlock) ? ' W X ' : ' w x ';
+      params += target + ' ' + source;
+
+  execFile('nfc-mfclassic' + params, [], (err, stdout, stderr) => {
+
+    error.message = stderr || "";
+    error.message = err  || "";
+
+    error.type = 2;
+
+    if(err || stderr)
+      console.log(error.message);
+    else
+      console.log(colors.green('Successfully cloned.'));
+
+  })
+}
+
+function extractUIDFromOutput(output){
+  return (output.match(re)) ? output.match(re)[1].replace(/ /g,'') : 0;
+}
+
+module.exports = {
+  readMifareUID: readMifareUID,
+  readMifareClassic: readMifareClassic,
+  readHexFile : readHexFile,
+  writeMifareDumpToFile: writeMifareDumpToFile
+};

package.json

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+{
+  "name": "mifare-node-js",
+  "author": "Elliot Maincourt <e.maincourt@gmail.com>",
+  "version": "0.0.1",
+  "description": "Read and write dumps of Mifare Classic 1K tags.",
+  "main": "index.js",
+  "keywords": [
+    "Mifare",
+    "NodeJS",
+    "NFC"
+  ],
+  "readmeFilename": "README.md",
+  "dependencies": {
+    "better-console": "^1.0.0",
+    "colors": "^1.1.2",
+    "console.table": "^0.8.0"
+  }
+}