/// <summary>
/// 注入验证项目的Startup ConfigureServices中使用
/// </summary>
/// <param name="services">IServiceCollection</param>
/// <param name="issuer">发行人</param>
/// <param name="audience">订阅人</param>
/// <param name="secret">密钥</param>
/// <param name="deniedUrl">拒绝路由</param>
/// <returns></returns>
public static IServiceCollection AddJTokenBuild(this IServiceCollection services, string issuer, string audience, string secret, string deniedUrl)
{
var signingCredentials = new SigningCredentials(new SymmetricSecurityKey(Encoding.ASCII.GetBytes(secret)), 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(
deniedUrl,
ClaimTypes.Role,
issuer,
audience,
signingCredentials,
expiration: TimeSpan.FromHours(10)
);
return(services.AddSingleton(permissionRequirement));
}
/// <summary>
/// 注入Ocelot jwt策略，在业务API服务应用中的Startup的ConfigureServices调用
/// </summary>
/// <param name="services">IServiceCollection</param>
/// <param name="issuer">发行人</param>
/// <param name="audience">订阅人</param>
/// <param name="secret">密钥</param>
/// <param name="defaultScheme">默认架构</param>
/// <param name="policyName">自定义策略名称</param>
/// <param name="deniedUrl">拒绝路由</param>
/// <param name="isHttps">是否https</param>
/// <returns></returns>
public static AuthenticationBuilder AddOcelotPolicyJwtBearer(this IServiceCollection services, string issuer, string audience, string secret, string defaultScheme, string policyName, string deniedUrl, bool isHttps = false)
{
var keyByteArray = Encoding.ASCII.GetBytes(secret);
var signingKey = new SymmetricSecurityKey(keyByteArray);
var tokenValidationParameters = new TokenValidationParameters
{
ValidateIssuerSigningKey = true,
IssuerSigningKey = signingKey,
ValidateIssuer = true,
ValidIssuer = issuer, //发行人
ValidateAudience = true,
ValidAudience = audience, //订阅人
ValidateLifetime = true,
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(
deniedUrl,
ClaimTypes.Role,
issuer,
audience,
signingCredentials,
expiration: TimeSpan.FromHours(10)
);
//注入授权Handler
services.AddSingleton <IAuthorizationHandler, PermissionHandler>();
services.AddSingleton(permissionRequirement);
return(services.AddAuthorization(options =>
{
options.AddPolicy(policyName,
policy => policy.Requirements.Add(permissionRequirement));
})
.AddAuthentication(options =>
{
options.DefaultScheme = defaultScheme;
})
.AddJwtBearer(defaultScheme, o =>
{
//不使用https
o.RequireHttpsMetadata = isHttps;
o.TokenValidationParameters = tokenValidationParameters;
}));
}
/// <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);
}
