public async Task<bool> AddRefreshToken(RefreshToken token)
{
var existingToken = dbContext.RefreshTokens.SingleOrDefault(r => r.Subject == token.Subject && r.ClientId == token.ClientId);
if (existingToken != null)
await RemoveRefreshToken(existingToken);
dbContext.RefreshTokens.Add(token);
return await dbContext.SaveChangesAsync() > 0;
}
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 repository = new AuthRepository())
{
var refreshTokenLifeTime = context.OwinContext.Get<string>("as:clientRefreshTokenLifeTime");
var token = new RefreshToken
{
Id = refreshTokenId.GetHashSHA256(),
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 repository.AddRefreshToken(token);
if (result)
{
context.SetToken(refreshTokenId);
}
}
}
public async Task<bool> RemoveRefreshToken(RefreshToken refreshToken)
{
dbContext.RefreshTokens.Remove(refreshToken);
return await dbContext.SaveChangesAsync() > 0;
}