/// <summary>
/// 注入Token生成器参数，在token生成项目的Startup的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>
/// <returns></returns>
public static IServiceCollection AddJTokenBuild(this IServiceCollection services, string issuer, string audience, string secret)
{
var signingCredentials = new SigningCredentials(new SymmetricSecurityKey(Encoding.ASCII.GetBytes(secret)), SecurityAlgorithms.HmacSha256);
var permissionRequirement = new PermissionRequirement(issuer, audience, signingCredentials, true);
return(services.AddSingleton(permissionRequirement));
}
/// <summary>
/// 注入Ocelot jwt策略，在业务API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="openJWT">是否开启jwt验证</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, bool openJWT, bool isHttps = false)
{
var keyByteArray = Encoding.UTF8.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);
var permissionRequirement = new PermissionRequirement(issuer, audience, signingCredentials, openJWT);
//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="claims"></param>
/// <param name="permissionRequirement"></param>
/// <param name="clientType"></param>
/// <param name="TokenType">1.token 2 refreshToken</param>
/// <returns></returns>
public static dynamic BuildJwtToken(Claim[] claims, PermissionRequirement permissionRequirement, AuthClientType clientType)
{
double expiresIn = 2 * 60 * 60 * 1000;
double refreshTokenExpiresIn = 24 * 60 * 60 * 1000;
switch (clientType)
{
case AuthClientType.Web: //SAAS后台
refreshTokenExpiresIn = 8 * 60 * 60 * 1000; //设置成8小时
break;
case AuthClientType.Wehcat: //小程序
refreshTokenExpiresIn = 7 * 24 * 60 * 60 * 1000; //设置成7天 用于小程序客户端之类的，能确保一周永久在线
break;
default:
refreshTokenExpiresIn = 7 * 24 * 60 * 60 * 1000;
break;
}
var now = DateTime.Now;
var jwt_token = new JwtSecurityToken(
issuer: permissionRequirement.Issuer,
audience: permissionRequirement.Audience,
claims: claims,
notBefore: now,
expires: now.Add(TimeSpan.FromMilliseconds(expiresIn)),
//expires: now.Add(TimeSpan.FromMilliseconds(5 * 60 * 1000)),
signingCredentials: permissionRequirement.SigningCredentials
);
//用于refresh使用的 jwt
var jwt_refreshtoken = new JwtSecurityToken(
issuer: permissionRequirement.Issuer,
audience: permissionRequirement.Audience,
claims: claims,
notBefore: now,
expires: now.Add(TimeSpan.FromMilliseconds(refreshTokenExpiresIn)),
//expires: now.Add(TimeSpan.FromMilliseconds(1000 * 60 * 10)),
signingCredentials: permissionRequirement.SigningCredentials
);
var encodedJwt_Token = new JwtSecurityTokenHandler().WriteToken(jwt_token);
var encodedJwt_RefreshToken = new JwtSecurityTokenHandler().WriteToken(jwt_refreshtoken);
var responseTokenJson = new
{
access_token = encodedJwt_Token,
expires = now.Add(TimeSpan.FromMilliseconds(expiresIn)),
expires_in = expiresIn,
//expires = now.Add(TimeSpan.FromMilliseconds(5 * 60 * 1000)),
//expires_in = 5 * 60 * 1000,
token_type = "Bearer",
refresh_access_token = new
{
refresh_token = encodedJwt_RefreshToken,
expires = now.Add(TimeSpan.FromMilliseconds(refreshTokenExpiresIn)),
expires_in = refreshTokenExpiresIn
//expires = now.Add(TimeSpan.FromMilliseconds(1000 * 60 * 10)),
//expires_in = 1000 * 60 * 10
}
};
return(responseTokenJson);
}
