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目录
回到顶部# 一、简介
单点登录(SingleSignOn，SSO)
指的是在多个应用系统中，只需登录一次，就可以访问其他相互信任的应用系统。
JWT
Json Web Token，这里不详细描述，简单说是一种认证机制。
Auth2.0
Auth2.0是一个认证流程，一共有四种方式，这里用的是最常用的授权码方式，流程为：
1、系统A向认证中心先获取一个授权码code。
2、系统A通过授权码code获取 token，refresh_token，expiry_time，scope。
token：系统A向认证方获取资源请求时带上的token。
refresh_token：token的有效期比较短，用来刷新token用。
expiry_time：token过期时间。
scope：资源域，系统A所拥有的资源权限，比喻scope:["userinfo"]，系统A只拥有获取用户信息的权限。像平时网站接入微信登录也是只能授权获取微信用户基本信息。
这里的SSO都是公司自己的系统，都是获取用户信息，所以这个为空，第三方需要接入我们的登录时才需要scope来做资源权限判断。
回到顶部# 二、实现目标
1、一处登录，全部登录
流程图为：
1、浏览器访问A系统，发现A系统未登录，跳转到统一登录中心（SSO），带上A系统的回调地址，
2、浏览器访问B系统，发现B系统没登录，跳转到统一登录中心（SSO），带上B系统的回调地址，
带着授权码跳转回B系统https://web2.com/Account/LoginRedirect?AuthCode=xxxxxxxx，然后B系统的回调地址用这个AuthCode调用SSO获取token，获取到token创建一个局部会话(cookie，redis），再跳转到https://web2.com。整个过程不用输入用户名密码，这些跳转基本是无感的，所以B就自动登录好了。
为什么要多个授权码而不直接带token跳转回A，B系统呢？因为地址上的参数是很容易被拦截到的，可能token会被截取到，非常不安全
还有为了安全，授权码只能用一次便销毁，A系统的token和B系统的token是独立的，不能相互访问。
2、一处退出，全部退出
流程图为：
A系统退出，把自己的会话删除，然后跳转到SSO的退出登录地址：https://sso.com/SSO/Logout?redirectUrl=https://web1.com/Account/LoginRedirect&clientId=web1，SSO删除全局会话，然后调接口删除获取了token的系统，然后在跳转到登录页面，https://sso.com/SSO/Login?redirectUrl=https://web1.com/Account/LoginRedirect&clientId=web1，这样就实现了一处退出，全部退出了。
3、双token机制
也就是带刷新token，为什么要刷新token呢？因为基于token式的鉴权授权有着天生的缺陷
token设置时间长，token泄露了，重放攻击。
token设置短了，老是要登录。问题还有很多，因为token本质决定，大部分是解决不了的。
所以就需要用到双Token机制，SSO返回token和refreshToken，token用来鉴权使用，refreshToken刷新token使用，
比喻token有效期10分钟，refreshToken有效期2天，这样就算token泄露了，最多10分钟就会过期，影响没那么大，系统定时9分钟刷新一次token，
这样系统就能让token滑动过期了，避免了频繁重新登录。
回到顶部# 三、功能实现和核心代码
1、一处登录，全部登录实现
建三个项目，SSO的项目，web1的项目，web2项目。
这里的流程就是web1跳转SSO输用户名登录成功获取code，把会话写到SSO的cookie，然后跳转回来根据code跟SSO获取token登录成功；
然后访问web2跳转到SSO，SSO已经登录，自动获取code跳回web2根据code获取token。
能实现一处登录处处登录的关键是SSO的cookie。
然后这里有一个核心的问题，如果我们生成的token有效期都是24小时，那么web1登录成功，获取的token有效期是24小时，
等到过了12个小时，我访问web2，web2也得到一个24小时的token，这样再过12小时，web1的登录过期了，web2还没过期，
这样就是web2是登录状态，然而web1却不是登录状态需要重新登录，这样就违背了一处登录处处登录的理念。
所以后面获取的token，只能跟第一次登录的token的过期时间是一样的。怎么做呢，就是SSO第一次登录时过期时间缓存下来，后面根据SSO会话获取的code，
换到的token的过期时间都和第一次一样。
SSO项目
SSO项目配置文件appsettings.json中加入web1，web2的信息，用来验证来源和生成对应项目的jwt token，实际项目应该存到数据库。
{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
},
"AllowedHosts": "*",
"AppSetting": {
"appHSSettings": [
{
"domain": "https://localhost:7001",
"clientId": "web1",
"clientSecret": "Nu4Ohg8mfpPnNxnXu53W4g0yWLqF0mX2"
},
{
"domain": "https://localhost:7002",
"clientId": "web2",
"clientSecret": "pQeP5X9wejpFfQGgSjyWB8iFdLDGHEV8"
}
]
}
}domain：接入系统的域名，可以用来校验请求来源是否合法。
clientId：接入系统标识，请求token时传进来识别是哪个系统。
clientSecret：接入系统密钥，用来生成对称加密的JWT。
建一个IJWTService定义JWT生成需要的方法
///
/// JWT服务接口
///
public interface IJWTService
{
///
/// 获取授权码
///
///
///
///
///
ResponseModel<string> GetCode(string clientId, string userName, string password);
///
/// 根据会话Code获取授权码
///
///
///
///
ResponseModel<string> GetCodeBySessionCode(string clientId, string sessionCode);
///
/// 根据授权码获取Token+RefreshToken
///
///
/// Token+RefreshToken
ResponseModel GetTokenWithRefresh(string authCode);
///
/// 根据RefreshToken刷新Token
///
///
///
///
string GetTokenByRefresh(string refreshToken, string clientId);
}建一个抽象类JWTBaseService加模板方法实现详细的逻辑
///
/// jwt服务
///
public abstract class JWTBaseService : IJWTService
{
protected readonly IOptions \_appSettingOptions;
protected readonly Cachelper \_cachelper;
public JWTBaseService(IOptions appSettingOptions, Cachelper cachelper)
{
\_appSettingOptions = appSettingOptions;
\_cachelper = cachelper;
}
///
/// 获取授权码
///
///
///
///
///
public ResponseModel<string> GetCode(string clientId, string userName, string password)
{
ResponseModel<string> result = new ResponseModel<string>();
string code = string.Empty;
AppHSSetting appHSSetting = \_appSettingOptions.Value.appHSSettings.Where(s => s.clientId == clientId).FirstOrDefault();
if (appHSSetting == null)
{
result.SetFail("应用不存在");
return result;
}
//真正项目这里查询数据库比较
if (!(userName == "admin" && password == "123456"))
{
result.SetFail("用户名或密码不正确");
return result;
}
//用户信息
CurrentUserModel currentUserModel = new CurrentUserModel
{
id = 101,
account = "admin",
name = "张三",
mobile = "13800138000",
role = "SuperAdmin"
};
//生成授权码
code = Guid.NewGuid().ToString().Replace("-", "").ToUpper();
string key = $"AuthCode:{code}";
string appCachekey = $"AuthCodeClientId:{code}";
//缓存授权码
\_cachelper.StringSet(key, currentUserModel, TimeSpan.FromMinutes(10));
//缓存授权码是哪个应用的
\_cachelper.StringSet<string>(appCachekey, appHSSetting.clientId, TimeSpan.FromMinutes(10));
//创建全局会话
string sessionCode = $"SessionCode:{code}";
SessionCodeUser sessionCodeUser = new SessionCodeUser
{
expiresTime = DateTime.Now.AddHours(1),
currentUser = currentUserModel
};
\_cachelper.StringSet(sessionCode, currentUserModel, TimeSpan.FromDays(1));
//全局会话过期时间
string sessionExpiryKey = $"SessionExpiryKey:{code}";
DateTime sessionExpirTime = DateTime.Now.AddDays(1);
\_cachelper.StringSet(sessionExpiryKey, sessionExpirTime, TimeSpan.FromDays(1));
Console.WriteLine($"登录成功，全局会话code:{code}");
//缓存授权码取token时最长的有效时间
\_cachelper.StringSet($"AuthCodeSessionTime:{code}", sessionExpirTime, TimeSpan.FromDays(1));
result.SetSuccess(code);
return result;
}
///
/// 根据会话code获取授权码
///
///
///
///
public ResponseModel<string> GetCodeBySessionCode(string clientId, string sessionCode)
{
ResponseModel<string> result = new ResponseModel<string>();
string code = string.Empty;
AppHSSetting appHSSetting = \_appSettingOptions.Value.appHSSettings.Where(s => s.clientId == clientId).FirstOrDefault();
if (appHSSetting == null)
{
result.SetFail("应用不存在");
return result;
}
string codeKey = $"SessionCode:{sessionCode}";
CurrentUserModel currentUserModel = \_cachelper.StringGet(codeKey);
if (currentUserModel == null)
{
return result.SetFail("会话不存在或已过期", string.Empty);
}
//生成授权码
code = Guid.NewGuid().ToString().Replace("-", "").ToUpper();
string key = $"AuthCode:{code}";
string appCachekey = $"AuthCodeClientId:{code}";
//缓存授权码
\_cachelper.StringSet(key, currentUserModel, TimeSpan.FromMinutes(10));
//缓存授权码是哪个应用的
\_cachelper.StringSet<string>(appCachekey, appHSSetting.clientId, TimeSpan.FromMinutes(10));
//缓存授权码取token时最长的有效时间
DateTime expirTime = \_cachelper.StringGet($"SessionExpiryKey:{sessionCode}");
\_cachelper.StringSet($"AuthCodeSessionTime:{code}", expirTime, expirTime - DateTime.Now);
result.SetSuccess(code);
return result;
}
///
/// 根据刷新Token获取Token
///
///
///
///
public string GetTokenByRefresh(string refreshToken, string clientId)
{
//刷新Token是否在缓存
CurrentUserModel currentUserModel = \_cachelper.StringGet($"RefreshToken:{refreshToken}");
if(currentUserModel==null)
{
return String.Empty;
}
//刷新token过期时间
DateTime refreshTokenExpiry = \_cachelper.StringGet($"RefreshTokenExpiry:{refreshToken}");
//token默认时间为600s
double tokenExpiry = 600;
//如果刷新token的过期时间不到600s了，token过期时间为刷新token的过期时间
if(refreshTokenExpiry>DateTime.Now&&refreshTokenExpiry600))
{
tokenExpiry = (refreshTokenExpiry - DateTime.Now).TotalSeconds;
}
//从新生成Token
string token = IssueToken(currentUserModel, clientId, tokenExpiry);
return token;
}
///
/// 根据授权码,获取Token
///
///
///
///
public ResponseModel GetTokenWithRefresh(string authCode)
{
ResponseModel result = new ResponseModel();
string key = $"AuthCode:{authCode}";
string clientIdCachekey = $"AuthCodeClientId:{authCode}";
string AuthCodeSessionTimeKey = $"AuthCodeSessionTime:{authCode}";
//根据授权码获取用户信息
CurrentUserModel currentUserModel = \_cachelper.StringGet(key);
if (currentUserModel == null)
{
throw new Exception("code无效");
}
//清除authCode，只能用一次
\_cachelper.DeleteKey(key);
//获取应用配置
string clientId = \_cachelper.StringGet<string>(clientIdCachekey);
//刷新token过期时间
DateTime sessionExpiryTime = \_cachelper.StringGet(AuthCodeSessionTimeKey);
DateTime tokenExpiryTime = DateTime.Now.AddMinutes(10);//token过期时间10分钟
//如果刷新token有过期期比token默认时间短，把token过期时间设成和刷新token一样
if (sessionExpiryTime > DateTime.Now && sessionExpiryTime < tokenExpiryTime)
{
tokenExpiryTime = sessionExpiryTime;
}
//获取访问token
string token = this.IssueToken(currentUserModel, clientId, (sessionExpiryTime - DateTime.Now).TotalSeconds);
TimeSpan refreshTokenExpiry;
if (sessionExpiryTime != default(DateTime))
{
refreshTokenExpiry = sessionExpiryTime - DateTime.Now;
}
else
{
refreshTokenExpiry = TimeSpan.FromSeconds(60 * 60 * 24);//默认24小时
}
//获取刷新token
string refreshToken = this.IssueToken(currentUserModel, clientId, refreshTokenExpiry.TotalSeconds);
//缓存刷新token
\_cachelper.StringSet($"RefreshToken:{refreshToken}", currentUserModel, refreshTokenExpiry);
//缓存刷新token过期时间
\_cachelper.StringSet($"RefreshTokenExpiry:{refreshToken}",DateTime.Now.AddSeconds(refreshTokenExpiry.TotalSeconds), refreshTokenExpiry);
result.SetSuccess(new GetTokenDTO() { token = token, refreshToken = refreshToken, expires = 60 * 10 });
Console.WriteLine($"client\_id:{clientId}获取token,有效期:{sessionExpiryTime.ToString("yyyy-MM-dd HH:mm:ss")},token:{token}");
return result;
}
#region private
///
/// 签发token
///
///
///
///
///
private string IssueToken(CurrentUserModel userModel, string clientId, double second = 600)
{
var claims = new[]
{
new Claim(ClaimTypes.Name, userModel.name),
new Claim("Account", userModel.account),
new Claim("Id", userModel.id.ToString()),
new Claim("Mobile", userModel.mobile),
new Claim(ClaimTypes.Role,userModel.role),
};
//var appHSSetting = getAppInfoByAppKey(clientId);
//var key = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(appHSSetting.clientSecret));
//var creds = new SigningCredentials(key, SecurityAlgorithms.HmacSha256);
var creds = GetCreds(clientId);
/**
* Claims (Payload)
Claims 部分包含了一些跟这个 token 有关的重要信息。 JWT 标准规定了一些字段，下面节选一些字段:
iss: The issuer of the token，签发主体，谁给的
sub: The subject of the token，token 主题
aud: 接收对象，给谁的
exp: Expiration Time。 token 过期时间，Unix 时间戳格式
iat: Issued At。 token 创建时间， Unix 时间戳格式
jti: JWT ID。针对当前 token 的唯一标识
除了规定的字段外，可以包含其他任何 JSON 兼容的字段。
* */
var token = new JwtSecurityToken(
issuer: "SSOCenter", //谁给的
audience: clientId, //给谁的
claims: claims,
expires: DateTime.Now.AddSeconds(second),//token有效期
notBefore: null,//立即生效 DateTime.Now.AddMilliseconds(30),//30s后有效
signingCredentials: creds);
string returnToken = new JwtSecurityTokenHandler().WriteToken(token);
return returnToken;
}
///
/// 根据appKey获取应用信息
///
///
///
private AppHSSetting getAppInfoByAppKey(string clientId)
{
AppHSSetting appHSSetting = \_appSettingOptions.Value.appHSSettings.Where(s => s.clientId == clientId).FirstOrDefault();
return appHSSetting;
}
///
/// 获取加密方式
///
///
protected abstract SigningCredentials GetCreds(string clientId);
#endregion
}新建类JWTHSService实现对称加密
///
/// JWT对称可逆加密
///
public class JWTHSService : JWTBaseService
{
public JWTHSService(IOptions options, Cachelper cachelper):base(options,cachelper)
{
}
///
/// 生成对称加密签名凭证
///
///
///
protected override SigningCredentials GetCreds(string clientId)
{
var appHSSettings=getAppInfoByAppKey(clientId);
var key = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(appHSSettings.clientSecret));
var creds = new SigningCredentials(key, SecurityAlgorithms.HmacSha256);
return creds;
}
///
/// 根据appKey获取应用信息
///
///
///
private AppHSSetting getAppInfoByAppKey(string clientId)
{
AppHSSetting appHSSetting = \_appSettingOptions.Value.appHSSettings.Where(s => s.clientId == clientId).FirstOrDefault();
return appHSSetting;
}
}新建JWTRSService类实现非对称加密，和上面的对称加密，只需要一个就可以里，这里把两种都写出来了
///
/// JWT非对称加密
///
public class JWTRSService : JWTBaseService
{
public JWTRSService(IOptions options, Cachelper cachelper):base(options, cachelper)
{
}
///
/// 生成非对称加密签名凭证
///
///
///
protected override SigningCredentials GetCreds(string clientId)
{
var appRSSetting = getAppInfoByAppKey(clientId);
var rsa = RSA.Create();
byte[] privateKey = Convert.FromBase64String(appRSSetting.privateKey);//这里只需要私钥，不要begin,不要end
rsa.ImportPkcs8PrivateKey(privateKey, out \_);
var key = new RsaSecurityKey(rsa);
var creds = new SigningCredentials(key, SecurityAlgorithms.RsaSha256);
return creds;
}
///
/// 根据appKey获取应用信息
///
///
///
private AppRSSetting getAppInfoByAppKey(string clientId)
{
AppRSSetting appRSSetting = \_appSettingOptions.Value.appRSSettings.Where(s => s.clientId == clientId).FirstOrDefault();
return appRSSetting;
}
}什么时候用JWT的对称加密，什么时候用JWT的非对称加密呢？
对称加密：双方保存同一个密钥，签名速度快，但因为双方密钥一样，所以安全性比非对称加密低一些。
非对称加密：认证方保存私钥，系统方保存公钥，签名速度比对称加密慢，但公钥私钥互相不能推导，所以安全性高。
所以注重性能的用对称加密，注重安全的用非对称加密，一般是公司的系统用对称加密，第三方接入的话用非对称加密。
web1项目：
appsettings.json存着web1的信息
{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
},
"AllowedHosts": "*",
"SSOSetting": {
"issuer": "SSOCenter",
"audience": "web1",
"clientId": "web1",
"clientSecret": "Nu4Ohg8mfpPnNxnXu53W4g0yWLqF0mX2"
}
}Program.cs文件加入认证代码，加入builder.Services.AddAuthentication(。。。和加入app.UseAuthentication()，完整代码如下：
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.IdentityModel.Tokens;
using RSAExtensions;
using SSO.Demo.Web1.Models;
using SSO.Demo.Web1.Utils;
using System.Security.Cryptography;
using System.Text;
var builder = WebApplication.CreateBuilder(args);
// Add services to the container.
builder.Services.AddControllersWithViews();
builder.Services.AddHttpClient();
builder.Services.AddSingleton();
builder.Services.Configure(builder.Configuration.GetSection("AppOptions"));
builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
.AddJwtBearer(options =>
{
options.TokenValidationParameters = new TokenValidationParameters
{
//Audience,Issuer,clientSecret的值要和sso的一致
//JWT有一些默认的属性，就是给鉴权时就可以筛选了
ValidateIssuer = true,//是否验证Issuer
ValidateAudience = true,//是否验证Audience
ValidateLifetime = true,//是否验证失效时间
ValidateIssuerSigningKey = true,//是否验证client secret
ValidIssuer = builder.Configuration["SSOSetting:issuer"],//
ValidAudience = builder.Configuration["SSOSetting:audience"],//Issuer，这两项和前面签发jwt的设置一致
IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(builder.Configuration["SSOSetting:clientSecret"]))//client secret
};
});
#region 非对称加密-鉴权
//var rsa = RSA.Create();
//byte[] publickey = Convert.FromBase64String(AppSetting.PublicKey); //公钥，去掉begin... end ...
////rsa.ImportPkcs8PublicKey 是一个扩展方法，来源于RSAExtensions包
//rsa.ImportPkcs8PublicKey(publickey);
//var key = new RsaSecurityKey(rsa);
//var signingCredentials = new SigningCredentials(key, SecurityAlgorithms.RsaPKCS1);
//builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
// .AddJwtBearer(options =>
// {
// options.TokenValidationParameters = new TokenValidationParameters
// {
// //Audience,Issuer,clientSecret的值要和sso的一致
// //JWT有一些默认的属性，就是给鉴权时就可以筛选了
// ValidateIssuer = true,//是否验证Issuer
// ValidateAudience = true,//是否验证Audience
// ValidateLifetime = true,//是否验证失效时间
// ValidateIssuerSigningKey = true,//是否验证client secret
// ValidIssuer = builder.Configuration["SSOSetting:issuer"],//
// ValidAudience = builder.Configuration["SSOSetting:audience"],//Issuer，这两项和前面签发jwt的设置一致
// IssuerSigningKey = signingCredentials.Key
// };
// });
#endregion
var app = builder.Build();
ServiceLocator.Instance = app.Services; //用于手动获取DI对象
// Configure the HTTP request pipeline.
if (!app.Environment.IsDevelopment())
{
app.UseExceptionHandler("/Home/Error");
// The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
app.UseHsts();
}
app.UseHttpsRedirection();
app.UseStaticFiles();
app.UseRouting();
app.UseAuthentication();//这个加在UseAuthorization 前
app.UseAuthorization();
app.MapControllerRoute(
name: "default",
pattern: "{controller=Home}/{action=Index}/{id?}");
app.Run();然后加接口根据授权code获取token，增加AccountController
///
/// 用户信息
///
public class AccountController : Controller
{
private IHttpClientFactory \_httpClientFactory;
private readonly Cachelper \_cachelper;
public AccountController(IHttpClientFactory httpClientFactory, Cachelper cachelper)
{
\_httpClientFactory = httpClientFactory;
\_cachelper = cachelper;
}
///
/// 获取用户信息，接口需要进行权限校验
///
///
[MyAuthorize]
[HttpPost]
public ResponseModel GetUserInfo()
{
ResponseModel user = new ResponseModel();
return user;
}
///
/// 登录成功回调
///
///
public ActionResult LoginRedirect()
{
return View();
}
//根据authCode获取token
[HttpPost]
public async Task> GetAccessCode([FromBody] GetAccessCodeRequest request)
{
ResponseModel result = new ResponseModel();
//请求SSO获取 token
var client = \_httpClientFactory.CreateClient();
var param = new { authCode = request.authCode };
string jsonData = System.Text.Json.JsonSerializer.Serialize(param);
StringContent paramContent = new StringContent(jsonData);
//请求sso获取token
var response = await client.PostAsync("https://localhost:7000/SSO/GetToken", new StringContent(jsonData, Encoding.UTF8, "application/json"));
string resultStr = await response.Content.ReadAsStringAsync();
result = System.Text.Json.JsonSerializer.Deserialize>(resultStr);
if (result.code == 0) //成功
{
//成功,缓存token到局部会话
string token = result.data.token;
string key = $"SessionCode:{request.sessionCode}";
string tokenKey = $"token:{token}";
\_cachelper.StringSet<string>(key, token, TimeSpan.FromSeconds(result.data.expires));
\_cachelper.StringSet<bool>(tokenKey, true, TimeSpan.FromSeconds(result.data.expires));
Console.WriteLine($"获取token成功，局部会话code:{request.sessionCode},{Environment.NewLine}token:{token}");
}
return result;
}
///
/// 退出登录
///
///
///
[HttpPost]
public ResponseModel LogOut([FromBody] LogOutRequest request)
{
string key = $"SessionCode:{request.SessionCode}";
//根据会话取出token
string token = \_cachelper.StringGet<string>(key);
if (!string.IsNullOrEmpty(token))
{
//清除token
string tokenKey = $"token:{token}";
\_cachelper.DeleteKey(tokenKey);
}
Console.WriteLine($"会话Code:{request.SessionCode}退出登录");
return new ResponseModel().SetSuccess();
}
}还有得到的token还没过期，如果我退出登录了，怎么判断这个会话token失效了呢？
这里需要拦截认证过滤器，判断token在缓存中被删除，则认证不通过，增加文件MyAuthorize
///
/// 拦截认证过滤器
///
public class MyAuthorize : Attribute, IAuthorizationFilter
{
private static Cachelper \_cachelper = ServiceLocator.Instance.GetService();
public void OnAuthorization(AuthorizationFilterContext context)
{
string id = context.HttpContext.User.FindFirst("id")?.Value;
if(string.IsNullOrEmpty(id))
{
//token检验失败
context.Result = new StatusCodeResult(401); //返回鉴权失败
return;
}
Console.WriteLine("我是Authorization过滤器");
//请求的地址
var url = context.HttpContext.Request.Path.Value;
//获取打印头部信息
var heads = context.HttpContext.Request.Headers;
//取到token "Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJodHRwOi8vc2NoZW1hcy54bWxzb2FwLm9yZy93cy8yMDA1LzA1L2lkZW50aXR5L2NsYWltcy9uYW1lIjoi5byg5LiJIiwiQWNjb3VudCI6ImFkbWluIiwiSWQiOiIxMDEiLCJNb2JpbGUiOiIxMzgwMDEzODAwMCIsImh0dHA6Ly9zY2hlbWFzLm1pY3Jvc29mdC5jb20vd3MvMjAwOC8wNi9pZGVudGl0eS9jbGFpbXMvcm9sZSI6IlN1cGVyQWRtaW4iLCJleHAiOjE2NTMwNjA0MDIsImlzcyI6IlNTT0NlbnRlciIsImF1ZCI6IndlYjIifQ.aAi5a0zr\_nLQQaSxSBqEhHZQ6ALFD\_rWn2tnLt38DeA"
string token = heads["Authorization"];
token = token.Replace("Bearer", "").TrimStart();//去掉 "Bearer "才是真正的token
if (string.IsNullOrEmpty(token))
{
Console.WriteLine("校验不通过");
return;
}
//redis校验这个token的有效性，确定来源是sso和确定会话没过期
string tokenKey = $"token:{token}";
bool isVaid = \_cachelper.StringGet<bool>(tokenKey);
//token无效
if (isVaid == false)
{
Console.WriteLine($"token无效,token:{token}");
context.Result = new StatusCodeResult(401); //返回鉴权失败
}
}
}然后需要认证的控制器或方法头部加上[MyAuthorize]即能自动认证。
web1需要登录的页面
@{
ViewData["Title"] = "Home Page";
}
class="text-center">
# class="display-4">欢迎来到Web1
Learn about ["https://web2.com:7002">跳转到Web2](<span).
Learn about "logOut()" href="javascript:void(0);">退出登录.
@section Scripts{
"</span><span style="color: rgba(128, 0, 0, 1)">~/js/Common.js</span><span style="color: rgba(128, 0, 0, 1)">"</span>>
<span style="color: rgba(0, 0, 0, 1)">
getUserInfo()
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">获取用户信息</span>
<span style="color: rgba(0, 0, 0, 1)"> function getUserInfo(){
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">1.cookie是否有 token</span>
<span style="color: rgba(0, 0, 255, 1)">const</span> token=getCookie(<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">token</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">)
console.log(</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">gettoken</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">,token)
</span><span style="color: rgba(0, 0, 255, 1)">if</span>(!<span style="color: rgba(0, 0, 0, 1)">token)
{
redirectLogin()
}
$.ajax({
type: </span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">POST</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">,
url: </span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">/Account/GetUserInfo</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">,
headers:{</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">Authorization</span><span style="color: rgba(128, 0, 0, 1)">"</span>:<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">Bearer </span><span style="color: rgba(128, 0, 0, 1)">'</span> +<span style="color: rgba(0, 0, 0, 1)"> token},
success: success,
error:error
});
}
function success(){
console.log(</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">成功</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">)
}
function error(xhr, exception){
</span><span style="color: rgba(0, 0, 255, 1)">if</span>(xhr.status===<span style="color: rgba(128, 0, 128, 1)">401</span>) <span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">鉴权失败</span>
<span style="color: rgba(0, 0, 0, 1)"> {
console.log(</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">未鉴权</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">)
redirectLogin()
}
}
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">重定向到登录</span>
<span style="color: rgba(0, 0, 0, 1)"> function redirectLogin(){
window.location.href</span>=<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">https://sso.com:7000/SSO/Login?clientId=web1&redirectUrl=https://web1.com:7001/Account/LoginRedirect</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">
}
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">退出登录</span>
<span style="color: rgba(0, 0, 0, 1)"> function logOut(){
clearCookie(</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">token</span><span style="color: rgba(128, 0, 0, 1)">"</span>) <span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">清除cookie token</span>
clearCookie(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">refreshToken</span><span style="color: rgba(128, 0, 0, 1)">"</span>) <span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">清除cookie refreshToken</span>
clearCookie(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">sessionCode</span><span style="color: rgba(128, 0, 0, 1)">"</span>) <span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">清除cookie 会话
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">跳转到SSO退出登录</span>
window.location.href=<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">https://sso.com:7000/SSO/LogOut?clientId=web1&redirectUrl=https://web1.com:7001/Account/LoginRedirect</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">
}
</span>
}sso登录完要跳转回web1的页面
@*
For more information on enabling MVC for empty projects, visit https://go.microsoft.com/fwlink/?LinkID=397860
*@
@{
Layout = null;
}
"</span><span style="color: rgba(128, 0, 0, 1)">~/lib/jquery/dist/jquery.min.js</span><span style="color: rgba(128, 0, 0, 1)">"</span>>
"</span><span style="color: rgba(128, 0, 0, 1)">~/js/Common.js</span><span style="color: rgba(128, 0, 0, 1)">"</span>>
<span style="color: rgba(0, 0, 0, 1)">
GetAccessToken();
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">根据code获取token</span>
<span style="color: rgba(0, 0, 0, 1)"> function GetAccessToken(){
</span><span style="color: rgba(0, 0, 255, 1)">var</span> <span style="color: rgba(0, 0, 255, 1)">params</span>=<span style="color: rgba(0, 0, 0, 1)">GetParam()
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">code</span>
<span style="color: rgba(0, 0, 255, 1)">var</span> authCode=<span style="color: rgba(0, 0, 255, 1)">params</span>[<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">authCode</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">]
</span><span style="color: rgba(0, 0, 255, 1)">var</span> sessionCode=<span style="color: rgba(0, 0, 255, 1)">params</span>[<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">sessionCode</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">]
console.log(</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">authcode</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">,authCode)
</span><span style="color: rgba(0, 0, 255, 1)">var</span> <span style="color: rgba(0, 0, 255, 1)">params</span>=<span style="color: rgba(0, 0, 0, 1)">{authCode,sessionCode}
$.ajax({
url:</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">/Account/GetAccessCode</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">,
type:</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">POST</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">,
data:JSON.stringify(</span><span style="color: rgba(0, 0, 255, 1)">params</span><span style="color: rgba(0, 0, 0, 1)">),
contentType:</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">application/json; charset=utf-8</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">,
dataType:</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">json</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">,
success: function(data){
console.log(</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">token</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">,data)
</span><span style="color: rgba(0, 0, 255, 1)">if</span>(data.code===<span style="color: rgba(128, 0, 128, 1)">0</span>) <span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">成功</span>
<span style="color: rgba(0, 0, 0, 1)"> {
console.log(</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">设置cookie</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">)
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">把token存到 cookie,过期时间为token有效时间少一分钟</span>
setCookie(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">token</span><span style="color: rgba(128, 0, 0, 1)">"</span>,data.data.token,data.data.expires-<span style="color: rgba(128, 0, 128, 1)">60</span>,<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">/</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">)
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">刷新token,有效期1天</span>
setCookie(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">refreshToken</span><span style="color: rgba(128, 0, 0, 1)">"</span>,data.data.refreshToken,<span style="color: rgba(128, 0, 128, 1)">24</span>*<span style="color: rgba(128, 0, 128, 1)">60</span>*<span style="color: rgba(128, 0, 128, 1)">60</span>,<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">/</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">)
setCookie(</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">SessionCode</span><span style="color: rgba(128, 0, 0, 1)">"</span>,sessionCode,<span style="color: rgba(128, 0, 128, 1)">24</span>*<span style="color: rgba(128, 0, 128, 1)">60</span>*<span style="color: rgba(128, 0, 128, 1)">60</span>,<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">/</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">)
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">跳转到主页</span>
window.location.href=<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">/Home/Index</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">
}
}})
}
</span>到这里web1的核心代码就完成了，web2的代码跟web1除了配置里面的加密key，其他全部一样，就不再贴出代码了，后面源码有。
到这里，就实现了一处登录，全部登录了。
2、一处退出，全部退出实现
一处退出，处处退出的流程像实现目标中的流程图，web1系统退出，跳转到SSO，让SSO发http请求退出其他的系统，跳转回登录页。
退出有个核心的问题就是，SSO只能让全部系统在当前浏览器上退出，比喻用户A在电脑1的浏览器登录了，在电脑2的浏览器也登录了，在电脑1上退出只能退出电脑1浏览器的登录，
电脑2的登录不受影响，web1退出了，SSO中的http请求退出web2的时候是不经过浏览器请求的，web2怎么知道清除那个token呢？
这里需要在SSO登录的时候生成了一个全局会话，SSO的cookie这时可以生成一个全局code，每个系统登录的时候带过去作为token的缓存key，这样就能保证全部系统的局部会话缓存key是同一个了，
退出登录的时候只需要删除这个缓存key的token即可。
SSO的登录页面Login.cshtml
@*
For more information on enabling MVC for empty projects, visit https://go.microsoft.com/fwlink/?LinkID=397860
*@
@{
}
"form">
用户名："text" id=userName name="userName" />
密码："password" id="password" name="password" />
"button" value="提交" onclick="login()" />
"</span><span style="color: rgba(128, 0, 0, 1)">~/lib/jquery/dist/jquery.min.js</span><span style="color: rgba(128, 0, 0, 1)">"</span>>
"</span><span style="color: rgba(128, 0, 0, 1)">~/js/Common.js</span><span style="color: rgba(128, 0, 0, 1)">"</span>>
<span style="color: rgba(0, 0, 0, 1)">
sessionCheck();
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">会话检查</span>
<span style="color: rgba(0, 0, 0, 1)"> function sessionCheck(){
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">获取参数集合</span>
<span style="color: rgba(0, 0, 255, 1)">const</span> urlParams=<span style="color: rgba(0, 0, 0, 1)">GetParam();
</span><span style="color: rgba(0, 0, 255, 1)">const</span> clientId=urlParams[<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">clientId</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">];
</span><span style="color: rgba(0, 0, 255, 1)">const</span> redirectUrl=urlParams[<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">redirectUrl</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">]
</span><span style="color: rgba(0, 0, 255, 1)">const</span> sessionCode=getCookie(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">SessionCode</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">)
</span><span style="color: rgba(0, 0, 255, 1)">if</span>(!<span style="color: rgba(0, 0, 0, 1)">sessionCode)
{
</span><span style="color: rgba(0, 0, 255, 1)">return</span><span style="color: rgba(0, 0, 0, 1)">;
}
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">根据授权码获取code</span>
<span style="color: rgba(0, 0, 255, 1)">var</span> <span style="color: rgba(0, 0, 255, 1)">params</span>=<span style="color: rgba(0, 0, 0, 1)">{clientId,sessionCode}
$.ajax({
url:</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">/SSO/GetCodeBySessionCode</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">,
data:JSON.stringify(</span><span style="color: rgba(0, 0, 255, 1)">params</span><span style="color: rgba(0, 0, 0, 1)">),
method:</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">post</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">,
dataType:</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">json</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">,
contentType:</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">application/json</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">,
success:function(data){
</span><span style="color: rgba(0, 0, 255, 1)">if</span>(data.code===<span style="color: rgba(128, 0, 128, 1)">0</span><span style="color: rgba(0, 0, 0, 1)">)
{
</span><span style="color: rgba(0, 0, 255, 1)">const</span> code=<span style="color: rgba(0, 0, 0, 1)">data.data
window.location.href</span>=redirectUrl+<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">?authCode=</span><span style="color: rgba(128, 0, 0, 1)">'</span>+code+<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">&sessionCode=</span><span style="color: rgba(128, 0, 0, 1)">"</span>+<span style="color: rgba(0, 0, 0, 1)">sessionCode
}
}
})
}
function login(){
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">获取参数集合</span>
<span style="color: rgba(0, 0, 255, 1)">const</span> urlParams=<span style="color: rgba(0, 0, 0, 1)">GetParam();
</span><span style="color: rgba(0, 0, 255, 1)">const</span> clientId=urlParams[<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">clientId</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">];
</span><span style="color: rgba(0, 0, 255, 1)">const</span> redirectUrl=urlParams[<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">redirectUrl</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">]
</span><span style="color: rgba(0, 0, 255, 1)">const</span> userName=$(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">#userName</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">).val()
</span><span style="color: rgba(0, 0, 255, 1)">const</span> password=$(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">#password</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">).val()
</span><span style="color: rgba(0, 0, 255, 1)">const</span> <span style="color: rgba(0, 0, 255, 1)">params</span>=<span style="color: rgba(0, 0, 0, 1)">{clientId,userName,password}
$.ajax({
url:</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">/SSO/GetCode</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">,
data:JSON.stringify(</span><span style="color: rgba(0, 0, 255, 1)">params</span><span style="color: rgba(0, 0, 0, 1)">),
method:</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">post</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">,
dataType:</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">json</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">,
contentType:</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">application/json</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">,
success:function(data){
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">获得code，跳转回客户页面</span>
<span style="color: rgba(0, 0, 255, 1)">if</span>(data.code===<span style="color: rgba(128, 0, 128, 1)">0</span><span style="color: rgba(0, 0, 0, 1)">)
{
</span><span style="color: rgba(0, 0, 255, 1)">const</span> code=<span style="color: rgba(0, 0, 0, 1)">data.data
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">存储会话,这里的时间最好减去几分钟，不然那边的token过期，这里刚好多了几秒没过期又重新登录了</span>
setCookie(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">SessionCode</span><span style="color: rgba(128, 0, 0, 1)">"</span>,code,<span style="color: rgba(128, 0, 128, 1)">24</span>*<span style="color: rgba(128, 0, 128, 1)">60</span>*<span style="color: rgba(128, 0, 128, 1)">60</span>,<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">/</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">)
window.location.href</span>=redirectUrl+<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">?authCode=</span><span style="color: rgba(128, 0, 0, 1)">'</span>+code+<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">&sessionCode=</span><span style="color: rgba(128, 0, 0, 1)">'</span>+<span style="color: rgba(0, 0, 0, 1)">code
}
}
})
}
</span>这里的SessionCode是关键，作为一个全局code，系统登录会同步到个系统，用于统一退出登录时用
SSO的退出登录页面LogOut.cshtml
@*
For more information on enabling MVC for empty projects, visit https://go.microsoft.com/fwlink/?LinkID=397860
*@
@{
}
退出登录中...
"</span><span style="color: rgba(128, 0, 0, 1)">~/lib/jquery/dist/jquery.min.js</span><span style="color: rgba(128, 0, 0, 1)">"</span>>
"</span><span style="color: rgba(128, 0, 0, 1)">~/js/Common.js?v=1</span><span style="color: rgba(128, 0, 0, 1)">"</span>>
<span style="color: rgba(0, 0, 0, 1)">
logOut()
function logOut()
{
</span><span style="color: rgba(0, 0, 255, 1)">var</span> sessionCode=getCookie(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">SessionCode</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">)
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">清除会话</span>
clearCookie(<span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">SessionCode</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">)
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">获取参数集合</span>
<span style="color: rgba(0, 0, 255, 1)">const</span> urlParams=<span style="color: rgba(0, 0, 0, 1)">GetParam();
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">跳转到登录</span>
<span style="color: rgba(0, 0, 255, 1)">const</span> clientId=urlParams[<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">clientId</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">];
</span><span style="color: rgba(0, 0, 255, 1)">const</span> redirectUrl=urlParams[<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">redirectUrl</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">]
</span><span style="color: rgba(0, 0, 255, 1)">var</span> <span style="color: rgba(0, 0, 255, 1)">params</span>=<span style="color: rgba(0, 0, 0, 1)">{sessionCode}
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">退出登录</span>
<span style="color: rgba(0, 0, 0, 1)"> $.ajax({
url:</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">/SSO/LogOutApp</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">,
type:</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">POST</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">,
data:JSON.stringify(</span><span style="color: rgba(0, 0, 255, 1)">params</span><span style="color: rgba(0, 0, 0, 1)">),
contentType:</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">application/json; charset=utf-8</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">,
dataType:</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(128, 0, 0, 1)">json</span><span style="color: rgba(128, 0, 0, 1)">"</span><span style="color: rgba(0, 0, 0, 1)">,
success: function(data){
console.log(</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">token</span><span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(0, 0, 0, 1)">,data)
</span><span style="color: rgba(0, 0, 255, 1)">if</span>(data.code===<span style="color: rgba(128, 0, 128, 1)">0</span>) <span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">成功</span>
<span style="color: rgba(0, 0, 0, 1)"> {
</span><span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)">跳转到登录页面</span>
window.location.href=<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">/SSO/Login</span><span style="color: rgba(128, 0, 0, 1)">'</span>+<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">?clientId=</span><span style="color: rgba(128, 0, 0, 1)">'</span>+clientId+<span style="color: rgba(128, 0, 0, 1)">'</span><span style="color: rgba(128, 0, 0, 1)">&redirectUrl=</span><span style="color: rgba(128, 0, 0, 1)">'</span>+<span style="color: rgba(0, 0, 0, 1)">redirectUrl
}
}})
}
</span>退出登录接口：
///
/// 退出登录
///
///
///
[HttpPost]
public async Task LogOutApp([FromBody] LogOutRequest request)
{
//删除全局会话
string sessionKey = $"SessionCode:{request.sessionCode}";
\_cachelper.DeleteKey(sessionKey);
var client = \_httpClientFactory.CreateClient();
var param = new { sessionCode = request.sessionCode };
string jsonData = System.Text.Json.JsonSerializer.Serialize(param);
StringContent paramContent = new StringContent(jsonData);
//这里实战中是用数据库或缓存取
List<string> urls = new List<string>()
{
"https://localhost:7001/Account/LogOut",
"https://localhost:7002/Account/LogOut"
};
//这里可以异步mq处理，不阻塞返回
foreach (var url in urls)
{
//web1退出登录
var logOutResponse = await client.PostAsync(url, new StringContent(jsonData, Encoding.UTF8, "application/json"));
string resultStr = await logOutResponse.Content.ReadAsStringAsync();
ResponseModel response = System.Text.Json.JsonSerializer.Deserialize(resultStr);
if (response.code == 0) //成功
{
Console.WriteLine($"url:{url},会话Id:{request.sessionCode},退出登录成功");
}
else
{
Console.WriteLine($"url:{url},会话Id:{request.sessionCode},退出登录失败");
}
};
return new ResponseModel().SetSuccess();
}web1，web2的退出登录接口
///
/// 退出登录
///
///
///
[HttpPost]
public ResponseModel LogOut([FromBody] LogOutRequest request)
{
string key = $"SessionCode:{request.SessionCode}";
//根据会话取出token
string token = \_cachelper.StringGet<string>(key);
if (!string.IsNullOrEmpty(token))
{
//清除token
string tokenKey = $"token:{token}";
\_cachelper.DeleteKey(tokenKey);
}
Console.WriteLine($"会话Code:{request.SessionCode}退出登录");
return new ResponseModel().SetSuccess();
}到这里，一处退出，全部退出也完成了。
3、双token机制实现
token和refresh_token生成算法一样就可以了，知识token的有效期端，refresh_token的有效期长。
那刷新token时怎么知道这个是刷新token呢，SSO生成刷新token的时候，把它保存到缓存中，刷新token的时候判断缓存中有就是刷新token。
生成双token的代码：
///
/// 根据授权码,获取Token
///
///
///
///
public ResponseModel GetTokenWithRefresh(string authCode)
{
ResponseModel result = new ResponseModel();
string key = $"AuthCode:{authCode}";
string clientIdCachekey = $"AuthCodeClientId:{authCode}";
string AuthCodeSessionTimeKey = $"AuthCodeSessionTime:{authCode}";
//根据授权码获取用户信息
CurrentUserModel currentUserModel = \_cachelper.StringGet(key);
if (currentUserModel == null)
{
throw new Exception("code无效");
}
//清除authCode，只能用一次
\_cachelper.DeleteKey(key);
//获取应用配置
string clientId = \_cachelper.StringGet<string>(clientIdCachekey);
//刷新token过期时间
DateTime sessionExpiryTime = \_cachelper.StringGet(AuthCodeSessionTimeKey);
DateTime tokenExpiryTime = DateTime.Now.AddMinutes(10);//token过期时间10分钟
//如果刷新token有过期期比token默认时间短，把token过期时间设成和刷新token一样
if (sessionExpiryTime > DateTime.Now && sessionExpiryTime < tokenExpiryTime)
{
tokenExpiryTime = sessionExpiryTime;
}
//获取访问token
string token = this.IssueToken(currentUserModel, clientId, (sessionExpiryTime - DateTime.Now).TotalSeconds);
TimeSpan refreshTokenExpiry;
if (sessionExpiryTime != default(DateTime))
{
refreshTokenExpiry = sessionExpiryTime - DateTime.Now;
}
else
{
refreshTokenExpiry = TimeSpan.FromSeconds(60 * 60 * 24);//默认24小时
}
//获取刷新token
string refreshToken = this.IssueToken(currentUserModel, clientId, refreshTokenExpiry.TotalSeconds);
//缓存刷新token
\_cachelper.StringSet(refreshToken, currentUserModel, refreshTokenExpiry);
result.SetSuccess(new GetTokenDTO() { token = token, refreshToken = refreshToken, expires = 60 * 10 });
Console.WriteLine($"client\_id:{clientId}获取token,有效期:{sessionExpiryTime.ToString("yyyy-MM-dd HH:mm:ss")},token:{token}");
return result;
}根据刷新token获取token代码：
///
/// 根据刷新Token获取Token
///
///
///
///
public string GetTokenByRefresh(string refreshToken, string clientId)
{
//刷新Token是否在缓存
CurrentUserModel currentUserModel = \_cachelper.StringGet($"RefreshToken:{refreshToken}");
if(currentUserModel==null)
{
return String.Empty;
}
//刷新token过期时间
DateTime refreshTokenExpiry = \_cachelper.StringGet($"RefreshTokenExpiry:{refreshToken}");
//token默认时间为600s
double tokenExpiry = 600;
//如果刷新token的过期时间不到600s了，token过期时间为刷新token的过期时间
if(refreshTokenExpiry>DateTime.Now&&refreshTokenExpiry600))
{
tokenExpiry = (refreshTokenExpiry - DateTime.Now).TotalSeconds;
}
//从新生成Token
string token = IssueToken(currentUserModel, clientId, tokenExpiry);
return token;
}回到顶部# 四、效果演示
这里项目的SSO地址是：https://localhost:7000 ，web1地址是：https://localhost:7001，web2地址是：https://localhost:7002
修改hosts文件，让他们在不同域名下，cookie不能共享。
win10路径：C:\Windows\System32\drivers\etc\hosts 在最后加入
127.0.0.1 sso.com
127.0.0.1 web1.com
127.0.0.1 web2.com这样得到新的地址，SSO地址:https://sso.com:7000 ，web1地址是：https://web1.com，web2地址是：https://web2.com
1、 这里一开始，访问https://web2.com没登录跳转到https://sso.com。
2、然后访问https://web1.com也没登录，也跳转到了https://sso.com，证明web1，web2都没登录。
3、然后在跳转的sso登录后跳转回web1，然后点https://web2.com的连接跳转到https://web2.com，自动登录了。
4、然后在web1退出登录，web2刷新页面，也退出了登录。
再看一下这些操作下SSO日志打印的记录。
到这里.NET6下基于JWT+OAuth2.0的SSO就完成了。
最后附源码：
百度云盘：https://pan.baidu.com/s/1MZbFC7KojIRT0LEL5HBkGg 提取码：qcn1
github： https://github.com/weixiaolong325/SSO.Demo.SSO （github网络有点问题，还没上传完整，用百度云盘的，晚点上传完整到github）