public static void AddJwtBearerPolicy(this IServiceCollection services, string issuer, string audience, string secret, TimeSpan expirationTimeSpan, bool isHttps = false, string defaultScheme = "ApiBearer", string policyName = "Api")
{
var keyByteArray = Encoding.UTF8.GetBytes(secret);
var signingKey = new SymmetricSecurityKey(keyByteArray);
var tokenValidationParameters = new TokenValidationParameters
{
ValidateIssuer = true,
ValidateAudience = true,
ValidateLifetime = true,
ValidateIssuerSigningKey = true,
ValidIssuer = issuer, //发行人
ValidAudience = audience, //订阅人
IssuerSigningKey = signingKey,
ClockSkew = TimeSpan.Zero,
//RequireExpirationTime = true,
};
var signingCredentials = new SigningCredentials(signingKey, SecurityAlgorithms.HmacSha256);
//如果第三个参数，是ClaimTypes.Role，上面集合的每个元素的Name为角色名称，如果ClaimTypes.Name，即上面集合的每个元素的Name为用户名
var permissionRequirement = new PermissionRequirement(
ClaimTypes.Role,
issuer,
audience,
signingCredentials,
expiration: expirationTimeSpan);
services.AddSingleton(permissionRequirement);
services.AddAuthorization(options =>
{
options.AddPolicy(policyName, policy => policy.Requirements.Add(permissionRequirement));
});
services.AddTransient <IAuthorizationHandler, PermissionHandler>();
}
/// <summary>
/// 获取基于JWT的Token
/// </summary>
/// <param name="username"></param>
/// <returns></returns>
public static dynamic BuildJwtToken(Claim[] claims, PermissionRequirement permissionRequirement)
{
var now = DateTime.UtcNow;
var jwt = new JwtSecurityToken(
issuer: permissionRequirement.Issuer,
audience: permissionRequirement.Audience,
claims: claims,
notBefore: now,
expires: now.Add(permissionRequirement.Expiration),
signingCredentials: permissionRequirement.SigningCredentials
);
var encodedJwt = new JwtSecurityTokenHandler().WriteToken(jwt);
var responseJson = new
{
Status = true,
access_token = encodedJwt,
expires_in = permissionRequirement.Expiration.TotalMilliseconds,
token_type = "Bearer"
};
return(responseJson);
}