public static string GenerateTokenJwt(string username)
{
// appsetting for Token JWT
var secretKey = Utilerias.JWT_Secret_Key();
var audienceToken = Utilerias.JWT_Audience_Token();
var issuerToken = Utilerias.JWT_Issuer_Token();
var expireTime = Utilerias.JWT_Expire_Minutes();
var securityKey = new SymmetricSecurityKey(System.Text.Encoding.Default.GetBytes(secretKey));
var signingCredentials = new SigningCredentials(securityKey, SecurityAlgorithms.HmacSha256Signature);
// create a claimsIdentity
ClaimsIdentity claimsIdentity = new ClaimsIdentity(new[] { new Claim(ClaimTypes.Name, username) });
// create token to the user
var tokenHandler = new System.IdentityModel.Tokens.Jwt.JwtSecurityTokenHandler();
var jwtSecurityToken = tokenHandler.CreateJwtSecurityToken(
audience: audienceToken,
issuer: issuerToken,
subject: claimsIdentity,
notBefore: DateTime.UtcNow,
expires: DateTime.UtcNow.AddMinutes(Convert.ToInt32(expireTime)),
signingCredentials: signingCredentials);
var jwtTokenString = tokenHandler.WriteToken(jwtSecurityToken);
return(jwtTokenString);
}
protected override Task <HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
HttpStatusCode statusCode;
string token;
// determine whether a jwt exists or not
if (!TryRetrieveToken(request, out token))
{
statusCode = HttpStatusCode.Unauthorized;
return(base.SendAsync(request, cancellationToken));
}
try
{
var secretKey = Utilerias.JWT_Secret_Key();
var audienceToken = Utilerias.JWT_Audience_Token();
var issuerToken = Utilerias.JWT_Issuer_Token();
var securityKey = new SymmetricSecurityKey(Encoding.Default.GetBytes(secretKey));
SecurityToken securityToken;
var tokenHandler = new System.IdentityModel.Tokens.Jwt.JwtSecurityTokenHandler();
TokenValidationParameters validationParameters = new TokenValidationParameters()
{
ValidAudience = audienceToken,
ValidIssuer = issuerToken,
ValidateLifetime = true,
ValidateIssuerSigningKey = true,
LifetimeValidator = LifetimeValidator,
IssuerSigningKey = securityKey
};
// Extract and assign Current Principal and user
Thread.CurrentPrincipal = tokenHandler.ValidateToken(token, validationParameters, out securityToken);
HttpContext.Current.User = tokenHandler.ValidateToken(token, validationParameters, out securityToken);
return(base.SendAsync(request, cancellationToken));
}
catch (SecurityTokenValidationException)
{
statusCode = HttpStatusCode.Unauthorized;
}
catch (Exception)
{
statusCode = HttpStatusCode.InternalServerError;
}
return(Task <HttpResponseMessage> .Factory.StartNew(() => new HttpResponseMessage(statusCode) { }));
}
