/// <summary>
/// Check if the entry exists. Ignore for now the passoword.
/// </summary>
public bool Exist(string targetName, string userName, string password, WindowsCredentialTypes.CredentialType type)
{
IntPtr credPtr;
if (CredRead(targetName, type, 0, out credPtr))
{
WindowsCredentialTypes.Credential cred = (WindowsCredentialTypes.Credential)MarshalNativeToManaged(credPtr);
return(cred.TargetName.Equals(targetName, StringComparison.CurrentCultureIgnoreCase) &&
(cred.UserName.Equals(userName, StringComparison.CurrentCultureIgnoreCase) ||
userName.IsNullOrEmpty()));
}
else
{
return(false);
}
}
public bool Add(string targetName, string userName, string password, WindowsCredentialTypes.CredentialType type, WindowsCredentialTypes.CredentialPersist persist)
{
// Check if the password is not too long.
byte[] byteArray = Encoding.Unicode.GetBytes(password);
if (byteArray.Length > 512)
{
throw new ArgumentOutOfRangeException("The password has exceeded 512 bytes.");
}
WindowsCredentialTypes.Credential cred = new WindowsCredentialTypes.Credential()
{
UserName = userName,
TargetName = targetName,
TargetAlias = null,
Persist = persist,
Comment = null,
Flags = 0,
Type = type,
CredentialBlob = password,
CredentialBlobSize = (UInt32)Encoding.Unicode.GetBytes(password).Length,
Attributes = null,
AttributeCount = 0
};
WindowsCredentialTypes.NativeCredential ncred = GetNativeCredential(cred);
// Write the info into the CredMan storage.
bool written = CredWrite(ref ncred, 0);
int lastError = Marshal.GetLastWin32Error();
Marshal.FreeCoTaskMem(ncred.TargetName);
Marshal.FreeCoTaskMem(ncred.CredentialBlob);
Marshal.FreeCoTaskMem(ncred.UserName);
if (written)
{
return(true);
}
else
{
string message = string.Format("CredWrite failed with the error code {0}.", lastError);
throw new Exception(message);
}
}
static extern bool CredDelete(string targetName, WindowsCredentialTypes.CredentialType type, UInt32 flags);
static extern bool CredRead(string target, WindowsCredentialTypes.CredentialType type, int reservedFlag, out IntPtr credentialPtr);
public bool Delete(string targetName, WindowsCredentialTypes.CredentialType type)
{
return(CredDelete(targetName, type, 0));
}
public bool Exist(string targetName, WindowsCredentialTypes.CredentialType type)
{
return(Exist(targetName, null, null, type));
}
