internal static char[] GetCryptoKey(string dynamicSuffix = null)
{
if (generatedCryptoKey == null)
{
var savedKey = PlayerPrefs.GetString(PrefsKey);
if (!string.IsNullOrEmpty(savedKey))
{
generatedCryptoKey = Base64Utils.FromBase64ToChars(savedKey);
}
else
{
generatedCryptoKey = ObscuredString.GenerateKey();
var b64 = Base64Utils.ToBase64(generatedCryptoKey);
PlayerPrefs.SetString(PrefsKey, b64);
PlayerPrefs.Save();
}
}
if (string.IsNullOrEmpty(dynamicSuffix))
{
return(generatedCryptoKey);
}
var suffixChars = dynamicSuffix.ToCharArray();
var result = new char[generatedCryptoKey.Length + suffixChars.Length];
Buffer.BlockCopy(generatedCryptoKey, 0, result, 0, generatedCryptoKey.Length);
Buffer.BlockCopy(suffixChars, 0, result, generatedCryptoKey.Length + 1, suffixChars.Length);
return(result);
}
internal static bool MigrateObscuredStringIfNecessary(SerializedProperty sp)
{
var hiddenValueProperty = sp.FindPropertyRelative("hiddenValue");
if (hiddenValueProperty == null || hiddenValueProperty.arraySize == 0)
{
return(false);
}
var currentCryptoKeyOldProperty = sp.FindPropertyRelative("currentCryptoKey");
if (currentCryptoKeyOldProperty == null)
{
return(false);
}
var currentCryptoKeyOld = currentCryptoKeyOldProperty.stringValue;
if (string.IsNullOrEmpty(currentCryptoKeyOld))
{
return(false);
}
var hiddenCharsProperty = sp.FindPropertyRelative("hiddenChars");
if (hiddenCharsProperty == null || hiddenCharsProperty.arraySize == 0)
{
return(false);
}
var hiddenValue = ObscuredStringDrawer.GetBytesObsolete(hiddenValueProperty);
var decrypted = ObscuredString.EncryptDecryptObsolete(ObscuredString.GetStringObsolete(hiddenValue), currentCryptoKeyOld);
var currentCryptoKey = ObscuredString.GenerateKey();
var hiddenChars = ObscuredString.InternalEncryptDecrypt(decrypted.ToCharArray(), currentCryptoKey);
ObscuredStringDrawer.SetChars(hiddenCharsProperty, hiddenChars);
var currentCryptoKeyProperty = sp.FindPropertyRelative("cryptoKey");
ObscuredStringDrawer.SetChars(currentCryptoKeyProperty, currentCryptoKey);
hiddenValueProperty.arraySize = 0;
currentCryptoKeyOldProperty.stringValue = null;
return(true);
}
public override void OnGUI(Rect position, SerializedProperty prop, GUIContent label)
{
MigrateUtils.MigrateObscuredStringIfNecessary(prop);
var hiddenChars = prop.FindPropertyRelative("hiddenChars");
var cryptoKey = prop.FindPropertyRelative("cryptoKey");
var inited = prop.FindPropertyRelative("inited");
var fakeValue = prop.FindPropertyRelative("fakeValue");
var fakeValueActive = prop.FindPropertyRelative("fakeValueActive");
var currentCryptoKey = GetChars(cryptoKey);
var val = string.Empty;
if (!inited.boolValue)
{
if (currentCryptoKey.Length == 0)
{
currentCryptoKey = ObscuredString.GenerateKey();
SetChars(cryptoKey, currentCryptoKey);
}
inited.boolValue = true;
EncryptAndSetChars(val.ToCharArray(), hiddenChars, currentCryptoKey);
fakeValue.stringValue = val;
}
else
{
var size = hiddenChars.FindPropertyRelative("Array.size");
var showMixed = size.hasMultipleDifferentValues;
if (!showMixed)
{
for (var i = 0; i < hiddenChars.arraySize; i++)
{
showMixed |= hiddenChars.GetArrayElementAtIndex(i).hasMultipleDifferentValues;
if (showMixed)
{
break;
}
}
}
if (!showMixed)
{
var chars = new char[hiddenChars.arraySize];
for (var i = 0; i < hiddenChars.arraySize; i++)
{
chars[i] = (char)hiddenChars.GetArrayElementAtIndex(i).intValue;
}
val = ObscuredString.Decrypt(chars, currentCryptoKey);
}
else
{
EditorGUI.showMixedValue = true;
}
}
var dataIndex = prop.propertyPath.IndexOf("Array.data[", StringComparison.Ordinal);
if (dataIndex >= 0)
{
dataIndex += 11;
var index = "Element " + prop.propertyPath.Substring(dataIndex, prop.propertyPath.IndexOf("]", dataIndex, StringComparison.Ordinal) - dataIndex);
label.text = index;
}
label = EditorGUI.BeginProperty(position, label, prop);
EditorGUI.BeginChangeCheck();
val = EditorGUI.TextField(position, label, val);
if (EditorGUI.EndChangeCheck())
{
EncryptAndSetChars(val.ToCharArray(), hiddenChars, currentCryptoKey);
fakeValue.stringValue = val;
fakeValueActive.boolValue = true;
}
EditorGUI.showMixedValue = false;
EditorGUI.EndProperty();
}
