基于asp net core signalr 实现简单的demo,并采用JWT授权机制。

asp.net-core-signalr

基于asp net core signalr 实现简单的demo,并采用授权机制。

1、使用JWT进行授权认证

1. 添加授权自定义策略

services.AddAuthorization(options =>
{
   
   
    options.AddPolicy("Hubs", policy => policy.Requirements.Add(new PolicyRequirement()));
})

2. 设置认证方式(cookie、bearer、openid)

AddAuthentication(options =>
{
   
   
    options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
    options.DefaultScheme = JwtBearerDefaults.AuthenticationScheme;
    options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
})

3. 添加JWT认证机制

   • 设置验证参数

     x.TokenValidationParameters = new TokenValidationParameters
     {
            
            
         LifetimeValidator = (before, expires, token, param) =>
         {
            
                                    
             return expires > DateTime.UtcNow;
         },
         ValidateIssuerSigningKey = true,
         IssuerSigningKey = new SymmetricSecurityKey(Encoding.ASCII.GetBytes(key)),//Secret
         ValidateIssuer = false,
         ValidateAudience = false,
         ValidateActor = false,
         ValidateLifetime = true
     };
     

   • 为Jwt注册事件

     x.Events = new JwtBearerEvents
     {
            
            
          OnMessageReceived = context =>
          {
            
            
              var accessToken