Decrypt Cordova Crypt File Plugin
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// Blogpost: http://blog.rz.my/2017/11/decrypting-cordova-crypt-file-plugin.html | |
var fs = require("fs"), | |
path = require("path"), | |
crypto = require("crypto"); | |
var config = { | |
key : 'CRYPT_KEY', | |
iv : 'CRYPT_IV' | |
} | |
if (process.argv.length < 4) { | |
console.log("\nUsage:\nnode app.js <options> <folder>\n"); | |
console.log("Options:"); | |
console.log("\t-e\t\t: Encrypt"); | |
console.log("\t-d\t\t: Decrypt"); | |
process.exit(1); | |
} | |
encdec = process.argv[2]; | |
folder = process.argv[3]; | |
if( fs.existsSync( folder ) ) { | |
console.log(folder + " exists"); | |
if( encdec == '-e' ) { | |
EncryptThis(folder); | |
} else if( encdec == '-d' ) { | |
DecryptThis(folder); | |
} else { | |
console.log("Invalid Options"); | |
process.exit(1); | |
} | |
} else { | |
console.log( folder + " doesn't exists"); | |
process.exit(1); | |
} | |
function EncryptThis(folder) { | |
findCryptFiles(folder).filter(function(file) { | |
return isCryptFile(file); | |
}).forEach(function(file) { | |
var content = fs.readFileSync(file, 'utf-8'); | |
fs.writeFileSync(file, Encrypt(content, config.key, config.iv), 'utf-8'); | |
console.log('Encrypt: ' + file); | |
}); | |
} | |
function DecryptThis(folder) { | |
findCryptFiles(folder).filter(function(file) { | |
return isCryptFile(file); | |
}).forEach(function(file) { | |
var content = fs.readFileSync(file, 'utf-8'); | |
content = Buffer.from(content, 'base64').toString('binary'); | |
fs.writeFileSync(file, Decrypt(content, config.key, config.iv), 'utf-8'); | |
console.log('Decrypt: ' + file); | |
}); | |
} | |
function findCryptFiles(dir) { | |
var fileList = []; | |
var list = fs.readdirSync(dir); | |
list.forEach(function(file) { | |
fileList.push(path.join(dir, file)); | |
}); | |
list.filter(function(file) { | |
return fs.statSync(path.join(dir, file)).isDirectory(); | |
}).forEach(function(file) { | |
var subDir = path.join(dir, file) | |
var subFileList = findCryptFiles(subDir); | |
fileList = fileList.concat(subFileList); | |
}); | |
return fileList; | |
} | |
function Decrypt(Input, Key, Iv) { | |
var cipher = crypto.createDecipheriv('aes-256-cbc', Key, Iv); | |
var decrypted = cipher.update(Input, 'binary', 'utf-8'); | |
decrypted += cipher.final('utf8'); | |
return decrypted; | |
} | |
function Encrypt(Input, Key, Iv) { | |
var cipher = crypto.createCipheriv('aes-256-cbc', Key, Iv); | |
var encrypted = cipher.update(Input, 'utf8', 'base64') + cipher.final('base64'); | |
return encrypted; | |
} | |
function isCryptFile(file) { | |
re = /\.(htm|html|js|css)$/; | |
return new RegExp(re).test(file); | |
} |
Hi @ostridgep, missing equal sign in line 80 :
decrypted + cipher.final('utf8');
should be :
decrypted += cipher.final('utf8');
Super Genius Guy.
You are a Profession.
Hi @ostridgep, missing equal sign in line 80 :
decrypted + cipher.final('utf8');
should be :
decrypted += cipher.final('utf8');
Updated the code, thanks!
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Hi
I have tried too use this, it decrypts the files but misses off the last few bytes of each file
any suggestions?