add(refreshTokenService)：完善刷新令牌服务

backend/IM_API/Program.cs

@@ -1,7 +1,11 @@
 
 using IM_API.Configs;
 using IM_API.Models;
+using Microsoft.AspNetCore.Authentication.JwtBearer;
 using Microsoft.EntityFrameworkCore;
+using Microsoft.IdentityModel.Tokens;
+using StackExchange.Redis;
+using System.Text;
 
 namespace IM_API
 {
@@ -16,14 +20,74 @@ namespace IM_API
             .SetBasePath(Directory.GetCurrentDirectory())
             .AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
             .Build();
-            string conStr = builder.Configuration.GetConnectionString("DefaultConnection")!;
-            
+            string conStr = configuration.GetConnectionString("DefaultConnection")!;
+            string redisConStr = configuration.GetConnectionString("Redis");
+            //注入数据库上下文
             builder.Services.AddDbContext<ImContext>(options =>
             {
                 options.UseMySql(conStr,ServerVersion.AutoDetect(conStr));
             });
+            //注入redis
+            var redis = ConnectionMultiplexer.Connect(redisConStr);
+            builder.Services.AddSingleton<IConnectionMultiplexer>(redis);
             
             builder.Services.AddAllService(configuration);
+
+            builder.Services.AddSignalR();
+            //允许所有来源（跨域）
+            builder.Services.AddCors(options =>
+            {
+                options.AddDefaultPolicy(policy =>
+                {
+                    policy.AllowAnyHeader()
+                    .AllowAnyMethod()
+                    .AllowAnyHeader()
+                    .AllowAnyOrigin()
+                    .AllowAnyOrigin();
+                });
+            });
+            //凭证处理
+            builder.Services.AddAuthentication(options =>
+            {
+                options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
+                options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
+            })
+                .AddJwtBearer(options =>
+                {
+                    //https非必须
+                    options.RequireHttpsMetadata = false;
+                    //保存token
+                    options.SaveToken = true;
+                    options.TokenValidationParameters = new Microsoft.IdentityModel.Tokens.TokenValidationParameters
+                    {
+                        //验证签发者
+                        ValidateIssuer = true,
+                        ValidIssuer = configuration["Jwt:Issuer"],
+                        //验证受众
+                        ValidateAudience = true,
+                        ValidAudience = configuration["Jwt:Audience"],
+                        //验证签名密钥
+                        ValidateIssuerSigningKey = true,
+                        IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(configuration["Jwt:Key"])),
+                        //时间偏差容忍
+                        ValidateLifetime = true,
+                        ClockSkew = TimeSpan.FromSeconds(30)
+
+
+                    };
+                    //websocket token凭证处理
+                    options.Events = new JwtBearerEvents { 
+                        OnMessageReceived = context =>
+                        {
+                            var accessToken = context.Request.Query["access_token"];
+                            if (!string.IsNullOrEmpty(accessToken))
+                            {
+                                context.Token = accessToken;
+                            }
+                            return Task.CompletedTask;
+                        }
+                    };
+                });
             builder.Services.AddControllers();
             // Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
             builder.Services.AddEndpointsApiExplorer();
@@ -41,6 +105,7 @@ namespace IM_API
             app.UseHttpsRedirection();
 
             app.UseAuthorization();
+            app.UseAuthentication();
 
 
             app.MapControllers();