/// <summary>
/// Deserializes a JSON string into a WindowsKey.
/// This uses a Google specific JSON object containing the
/// following properties.
///
/// email: the email of the account creator.
/// expireOn: the date and time in UTC we should stop accepting the key.
/// exponent: the exponent for encryption.
/// modulus: a 2048 bit RSA public key modulus.
/// userName: the name of the user account.
///
/// This format is still subject to change.
/// Reliance on it in any way is at your own risk.
/// </summary>
/// <param name="windowsKey">The serialized WindowsKey.</param>
/// <returns>
/// A WindowsKey object or null if deserialization fails.
/// </returns>
public static WindowsKey DeserializeWindowsKey(string windowsKey)
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(WindowsKeyJson));
using (MemoryStream stream = new MemoryStream(Encoding.UTF8.GetBytes(windowsKey)))
{
try
{
WindowsKeyJson windowsKeyJson = (WindowsKeyJson)serializer.ReadObject(stream);
string expireOn = windowsKeyJson.ExpireOn;
string exponent = windowsKeyJson.Exponent;
string modulus = windowsKeyJson.Modulus;
string userName = windowsKeyJson.UserName;
return(new WindowsKey(expireOn: expireOn, exponent: exponent, modulus: modulus, userName: userName));
}
catch (Exception)
{
Logger.Warning("Windows key [{0}] could not be deserialized.", windowsKey);
return(null);
}
}
}
/// <summary>
/// Converts a WindowsKey into a serialized JSON string.
/// </summary>
/// <returns>The serialized JSON object as a string.</returns>
public override string ToString()
{
WindowsKeyJson windowsKeyJson = new WindowsKeyJson
{
Email = this.Email,
ExpireOn = this.ExpireOn,
Exponent = this.Exponent,
Modulus = this.Modulus,
UserName = this.UserName
};
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(WindowsKeyJson));
using (MemoryStream stream = new MemoryStream())
{
serializer.WriteObject(stream, windowsKeyJson);
stream.Position = 0;
using (StreamReader reader = new StreamReader(stream))
{
return(reader.ReadToEnd());
}
}
}
/// <summary>
/// Converts a WindowsKey into a serialized JSON string.
/// </summary>
/// <returns>The serialized JSON object as a string.</returns>
public override string ToString()
{
WindowsKeyJson windowsKeyJson = new WindowsKeyJson
{
Email = this.Email,
ExpireOn = this.ExpireOn,
Exponent = this.Exponent,
Modulus = this.Modulus,
UserName = this.UserName
};
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(WindowsKeyJson));
using (MemoryStream stream = new MemoryStream())
{
serializer.WriteObject(stream, windowsKeyJson);
stream.Position = 0;
using (StreamReader reader = new StreamReader(stream))
{
return reader.ReadToEnd();
}
}
}
