private String stripFormData(String data, MediaType type, boolean cipher) {
if (data.endsWith("=") && !type.equals(MediaType.TEXT_PLAIN)) {
try {
data = URLDecoder.decode(data, "UTF-8");
if (cipher) {
data = data.replace(" ", "+");
}
} catch (UnsupportedEncodingException e) {
// Really?
}
String candidate = data.substring(0, data.length() - 1);
if (cipher) {
if (data.endsWith("=")) {
if (data.length() / 2 != (data.length() + 1) / 2) {
try {
Hex.decode(candidate);
return candidate;
} catch (IllegalArgumentException e) {
if (Base64.isBase64(data.getBytes())) {
return data;
}
}
}
}
return data;
}
// User posted data with content type form but meant it to be text/plain
data = candidate;
}
return data;
}
public AesBytesEncryptor(
String password, CharSequence salt, BytesKeyGenerator ivGenerator, CipherAlgorithm alg) {
PBEKeySpec keySpec = new PBEKeySpec(password.toCharArray(), Hex.decode(salt), 1024, 256);
SecretKey secretKey = newSecretKey("PBKDF2WithHmacSHA1", keySpec);
this.secretKey = new SecretKeySpec(secretKey.getEncoded(), "AES");
this.alg = alg;
this.encryptor = alg.createCipher();
this.decryptor = alg.createCipher();
this.ivGenerator = ivGenerator != null ? ivGenerator : alg.defaultIvGenerator();
}
