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 (AuthRepository _repo = new AuthRepository())
{
var refreshToken = await _repo.FindRefreshToken(hashedTokenId);
if (refreshToken != null)
{
//Get protectedTicket from refreshToken class
context.DeserializeTicket(refreshToken.ProtectedTicket);
var result = await _repo.RemoveRefreshToken(hashedTokenId);
}
}
}
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 (AuthRepository _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.AddHours(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.Empty;
string clientSecret = string.Empty;
Client client = null;
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 == 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<string>("as:clientAllowedOrigin", client.AllowedOrigin);
context.OwinContext.Set<string>("as:clientRefreshTokenLifeTime", client.RefreshTokenLifeTime.ToString());
var rt = "";
if (context.Parameters["refresh_token"] != null) rt = Helper.GetHash(context.Parameters["refresh_token"]);
context.Validated();
return Task.FromResult<object>(null);
}
public override async Task GrantResourceOwnerCredentials(OAuthGrantResourceOwnerCredentialsContext context)
{
var allowedOrigin = context.OwinContext.Get<string>("as:clientAllowedOrigin");
if (allowedOrigin == null) allowedOrigin = "*";
context.OwinContext.Response.Headers.Add("Access-Control-Allow-Origin", new[] { allowedOrigin });
IEnumerable<Role> roles;
ApplicationUser user;
using (AuthRepository _repo = new AuthRepository())
{
user = await _repo.FindUser(context.UserName, context.Password);
if (user == null)
{
context.SetError("invalid_grant", "The user name or password is incorrect.");
return;
}
//User roles
roles = (IEnumerable<Role>)_repo.GetRoles(user.Id);
}
//if (roles != null) setJson(roles);
var identity = new ClaimsIdentity(context.Options.AuthenticationType);
identity.AddClaim(new Claim(ClaimTypes.Name, context.UserName));
identity.AddClaim(new Claim(ClaimTypes.NameIdentifier, user.Id));
//Add user roles as Identity claim
//foreach (Role role in user.Roles)
//{
// identity.AddClaim(new Claim(ClaimTypes.Role, role.id));
//};
string jsonroles = JsonConvert.SerializeObject(roles, Formatting.None);
var props = new AuthenticationProperties(new Dictionary<string, string> { });
props.Dictionary.Add("as:client_id", (context.ClientId == null) ? string.Empty : context.ClientId);
props.Dictionary.Add("userName", context.UserName);
props.Dictionary.Add("roles", jsonroles);
props.Dictionary.Add("userId", user.Id);
var ticket = new AuthenticationTicket(identity, props);
context.Validated(ticket);
}
public override Task GrantRefreshToken(OAuthGrantRefreshTokenContext context)
{
var originalClient = context.Ticket.Properties.Dictionary["as:client_id"];
var currentClient = context.ClientId;
IEnumerable<Role> roles;
if (originalClient != currentClient)
{
context.SetError("invalid_clientId", "Refresh token is issued to a different clientId.");
return Task.FromResult<object>(null);
}
using (AuthRepository _repo = new AuthRepository())
{
roles = (IEnumerable<Role>)_repo.GetRoles(context.Ticket.Properties.Dictionary["userId"]);
}
// Change auth ticket for refresh token requests
var newIdentity = new ClaimsIdentity(context.Ticket.Identity);
//Upgrade roles according to Database info
AuthenticationProperties props = context.Ticket.Properties;
if (props.Dictionary.ContainsKey("roles")) props.Dictionary.Remove("roles");
string jsonroles = JsonConvert.SerializeObject(roles, Formatting.None);
props.Dictionary.Add("roles", jsonroles);
var newTicket = new AuthenticationTicket(newIdentity, props);
context.Validated(newTicket);
return Task.FromResult<object>(null);
}