/// <summary>
/// Modified Base64 for URL applications ('base64url' encoding)
///
/// See http://tools.ietf.org/html/rfc4648
/// For more information see http://en.wikipedia.org/wiki/Base64
/// </summary>
/// <param name="input"></param>
/// <returns>Input byte array converted to a base64ForUrl encoded string</returns>
public static string ToBase64ForUrlString(byte[] input)
{
string ret = Convert.ToBase64String(input);
ret = Base64Old.EscapeString(ret);
return(ret);
}
/// <summary>
/// Modified Base64 for URL applications ('base64url' encoding)
///
/// See http://tools.ietf.org/html/rfc4648
/// For more information see http://en.wikipedia.org/wiki/Base64
/// </summary>
/// <param name="base64ForUrlInput"></param>
/// <returns>Input base64ForUrl encoded string as the original byte array</returns>
public static byte[] FromBase64ForUrlString(string input)
{
string temp = Base64Old.UnEscapeString(input);
byte[] ba = Convert.FromBase64String(temp);
return(ba);
}
/// <summary>
/// Encodes the GUID with the specified encoding. This method will throw an exception if it fails for any reason.
/// </summary>
/// <param name="guid">The GUID.</param>
/// <param name="encoding">The encoding.</param>
/// <returns>System.String</returns>
public static string Encode(Guid guid, GuidEncoding encoding)
{
switch (encoding)
{
case GuidEncoding.Base32:
return(Base32Url.ToBase32String(guid.ToByteArray()));
case GuidEncoding.Base64:
return(Base64Url.ToBase64ForUrlString(guid.ToByteArray()));
case GuidEncoding.Base64Old:
return(Base64Old.ToBase64ForUrlString(guid.ToByteArray()));
default:
throw new Exception("The encoding type is not supported!");
}
}
/// <summary>
/// Decodes the specified string containing a GUID. This will throw an exception if it isn't a supported
/// encoding of a GUID.
/// </summary>
/// <param name="guid">The GUID.</param>
/// <param name="encoding">The encoding method to use.</param>
/// <returns>System.Guid</returns>
public static Guid Decode(string guid, GuidEncoding encoding)
{
switch (encoding)
{
case GuidEncoding.Base32:
return(new Guid(Base32Url.FromBase32String(guid)));
case GuidEncoding.Base64:
return(new Guid(Base64Url.FromBase64ForUrlString(guid)));
case GuidEncoding.Base64Old:
return(new Guid(Base64Old.FromBase64ForUrlString(guid)));
case GuidEncoding.String:
return(new Guid(guid));
default:
throw new Exception("The string being passed doesn't contain a valid Guid");
}
}
