public override async Task GrantResourceOwnerCredentials(OAuthGrantResourceOwnerCredentialsContext context)
{
using (var repo = new AuthRepository())
{
IdentityUser user = await repo.FindUser(context.UserName, context.Password);
if (user == null)
{
context.SetError("invalid_grant", "The user name or password is incorrect.");
return;
}
}
var identity = new ClaimsIdentity(context.Options.AuthenticationType);
identity.AddClaim(new Claim(ClaimTypes.Name, context.UserName));
identity.AddClaim(new Claim(ClaimTypes.Role, "user"));
identity.AddClaim(new Claim("sub", context.UserName));
var props = new AuthenticationProperties(new Dictionary<string, string>
{
{
"as:client_id", context.ClientId ?? string.Empty
},
{
"userName", context.UserName
}
});
var ticket = new AuthenticationTicket(identity, props);
context.Validated(ticket);
}
private static async Task CreateCurrentUserParameter(HttpActionContext actionContext)
{
var controller = (ApiController)actionContext.ControllerContext.Controller;
var user = controller.User;
if (!user.Identity.IsAuthenticated)
return;
var parameter = actionContext.ActionDescriptor.GetParameters().SingleOrDefault(p => typeof(ILoggedInPerson).IsAssignableFrom(p.ParameterType));
if (parameter == null)
return;
LoggedInPerson loggedInPerson = null;
if (!string.IsNullOrWhiteSpace(user.Identity.Name))
{
using (var repo = new AuthRepository())
{
var loggedInUser = await repo.FindByUserName(user.Identity.Name);
if (loggedInUser != null)
{
loggedInPerson = new LoggedInPerson(loggedInUser.Id, loggedInUser.UserName, new List<string>());
}
}
}
var currentUser = loggedInPerson;
actionContext.ActionArguments[parameter.ParameterName] = currentUser;
}
/// <summary>
///
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public async Task ReceiveAsync(AuthenticationTokenReceiveContext context)
{
var allowedOrigin = context.OwinContext.Get<string>("as:clientAllowedOrigin");
context.OwinContext.Response.Headers.Add("Access-Control-Allow-Origin", new[] { allowedOrigin });
string hashedTokenId = Helper.GetHash(context.Token);
using (var repo = new AuthRepository())
{
var refreshToken = await repo.FindRefreshToken(hashedTokenId);
if (refreshToken != null)
{
//Get protectedTicket from refreshToken class
context.DeserializeTicket(refreshToken.ProtectedTicket);
await repo.RemoveRefreshToken(hashedTokenId);
}
}
}
/// <summary>
///
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public async Task CreateAsync(AuthenticationTokenCreateContext context)
{
var clientid = context.Ticket.Properties.Dictionary["as:client_id"];
if (string.IsNullOrEmpty(clientid))
{
return;
}
var refreshTokenId = Guid.NewGuid().ToString("n");
using (var repo = new AuthRepository())
{
var refreshTokenLifeTime = context.OwinContext.Get<string>("as:clientRefreshTokenLifeTime");
var token = new RefreshToken()
{
Id = Helper.GetHash(refreshTokenId),
ClientId = clientid,
Subject = context.Ticket.Identity.Name,
IssuedUtc = DateTime.UtcNow,
ExpiresUtc = DateTime.UtcNow.AddMinutes(Convert.ToDouble(refreshTokenLifeTime))
};
context.Ticket.Properties.IssuedUtc = token.IssuedUtc;
context.Ticket.Properties.ExpiresUtc = token.ExpiresUtc;
token.ProtectedTicket = context.SerializeTicket();
var result = await repo.AddRefreshToken(token);
if (result)
{
context.SetToken(refreshTokenId);
}
}
}
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);
}
