public override Task ValidateClientAuthentication(OAuthValidateClientAuthenticationContext context)
{
string clientId;
string clientSecret;
Client client;
if (!context.TryGetBasicCredentials(out clientId, out clientSecret))
{
context.TryGetFormCredentials(out clientId, out clientSecret);
}
if (context.ClientId == null)
{
//Remove the comments from the below line context.SetError, and invalidate context
//if you want to force sending clientId/secrects once obtain access tokens.
context.Validated();
//context.SetError("invalid_clientId", "ClientId should be sent.");
return Task.FromResult<object>(null);
}
using (AuthRepository repo = new AuthRepository())
{
client = repo.FindClient(context.ClientId);
}
if (client == null)
{
context.SetError("invalid_clientId",
string.Format("Client '{0}' is not registered in the system.", context.ClientId));
return Task.FromResult<object>(null);
}
if (client.ApplicationType == (int)Models.Enum.ApplicationTypes.NativeConfidential)
{
if (string.IsNullOrWhiteSpace(clientSecret))
{
context.SetError("invalid_clientId", "Client secret should be sent.");
return Task.FromResult<object>(null);
}
else
{
if (client.Secret != Helper.GetHash(clientSecret))
{
context.SetError("invalid_clientId", "Client secret is invalid.");
return Task.FromResult<object>(null);
}
}
}
if (!client.Active)
{
context.SetError("invalid_clientId", "Client is inactive.");
return Task.FromResult<object>(null);
}
context.OwinContext.Set("as:clientAllowedOrigin", client.AllowedOrigin);
context.OwinContext.Set("as:clientRefreshTokenLifeTime", client.RefreshTokenLifeTime.ToString());
context.Validated();
return Task.FromResult<object>(null);
}