public override async Task ReceiveMessage(IModel model, RefreshTokenRevokedEvent message, BasicDeliverEventArgs e, ILogger logger)
{
try
{
// Check if revoked token already exists in db.
if (!(await _revokedTokenRepo.Exists(message.TokenId)))
{
await _revokedTokenRepo.Add(message.TokenId, message.TokenId, message.Expires);
_logger.LogInfo("TokenRevokedEventRabbitMqConsumer.Consume", $"Token with key: {message.TokenId} added to revoked tokens.");
}
else
{
_logger.LogError("TokenRevokedEventRabbitMqConsumer.Consume", $"Token with key: {message.TokenId} already exists.");
}
}
catch (Exception ex)
{
// Log error.
_logger.LogError("TokenRevokedEventRabbitMqConsumer.Consume", "Exception was thrown", new
{
RefreshTokenRevokedEvent = message,
Exception = ex
});
}
}
public async Task <TokenResult> Execute(string refreshToken)
{
try
{
//1.Validate and extract refresh token
if (!_refreshTokenExtracter.TryExractToken(refreshToken, out List <Claim> refreshTokenClaims))
{
throw new InvalidTokenException("Jwt token is corrupted or expired");
}
string rTokenJti = refreshTokenClaims.Single(c => c.Type == JwtRegisteredClaimNames.Jti).Value;
//2.Check if refresh token is revoked. If it is throw a security exception
if (await _revokedTokenRepo.Exists(rTokenJti))
{
throw new TokenRevokedException($"Token {rTokenJti} already revoked");
}
//3.Generate short token
var key = _symmetricKeyProvider.GetKey();
var creds = new SigningCredentials(key, SecurityAlgorithms.HmacSha256);
//Create stoken claims using some claims from parent rtoken
var shortTokenClaims = refreshTokenClaims.Where(c => c.Type == ClaimTypes.Name || c.Type == ClaimTypes.Role).Select(c => new Claim(c.Type, c.Value)).ToList();
//Add token Jti claim
string jti = _tokenIdGenerator.Generate();
shortTokenClaims.Add(new Claim(JwtRegisteredClaimNames.Jti, jti));
//Add RefreshTokenId of the rtoken to the stoken claims as RefreshTokenId claim
shortTokenClaims.Add(new Claim("rtokenjti", rTokenJti));
JwtSecurityToken jwtTokenOptions = new JwtSecurityToken(
issuer: _shortTokenConfig.ValidIssuer,
audience: _shortTokenConfig.ValidAudience,
claims: shortTokenClaims,
expires: DateTime.Now.AddMinutes(_shortTokenConfig.ExpiresInMin),
signingCredentials: creds
);
string shortToken = new JwtSecurityTokenHandler().WriteToken(jwtTokenOptions);
return(new TokenResult(null, shortToken, jwtTokenOptions.ValidTo));
}
catch (Exception ex)
{
//Log error
_logger.LogError("GenerateShortTokenCommand.Execute", "Exception was thrown", new
{
Exception = ex
});
throw;
}
}
