public override string this [string key] {
get {
byte[] pw;
var status = SecKeyChain.FindGenericPassword(ApplicationName, key, out pw);
switch (status)
{
case SecStatusCode.Success:
return(Encoding.UTF8.GetString(pw));
case SecStatusCode.ItemNotFound:
return(null);
default:
status.AndThrowExceptionOnFailure();
return(null);
}
}
set {
if (Contains(key))
{
Remove(key);
}
Add(key, value);
}
}
public string GetToken()
{
byte[] password_bytes;
SecStatusCode result = SecKeyChain.FindGenericPassword(
SERVICE, ACCOUNT, out password_bytes);
if (result != SecStatusCode.Success)
{
throw new Exception("Could not find token in Keychain");
}
return(Encoding.UTF8.GetString(password_bytes));
}
public static string GetCredentialFromFromKeychain(string username)
{
byte[] passwordBytes;
if (SecKeyChain.FindGenericPassword(ServiceName, username, out passwordBytes) != SecStatusCode.Success)
{
return(null);
}
if (passwordBytes == null || passwordBytes.Length == 0)
{
return(null);
}
return(Encoding.UTF8.GetString(passwordBytes));
}
public override bool Contains(string key)
{
byte[] pw;
var status = SecKeyChain.FindGenericPassword(ApplicationName, key, out pw);
switch (status)
{
case SecStatusCode.Success:
return(true);
case SecStatusCode.ItemNotFound:
return(false);
default:
status.AndThrowExceptionOnFailure();
return(false);
}
}
public static void SaveCredentialToKeychain(string username, string password)
{
SecStatusCode code = SecStatusCode.NotAvailable;
byte[] passwordBytes;
code = SecKeyChain.FindGenericPassword(ServiceName, username, out passwordBytes);
if (code == SecStatusCode.Success)
{
code = SecKeyChain.Update(new SecRecord(SecKind.GenericPassword)
{
Service = ServiceName,
Account = username
}, new SecRecord(SecKind.GenericPassword)
{
Account = username,
ValueData = NSData.FromString(password)
});
}
else
{
code = SecKeyChain.AddGenericPassword(ServiceName, username, System.Text.Encoding.UTF8.GetBytes(password));
}
}
