AGSSbackend/AGSS/Program.cs

using System.Reflection;
using System.Text;
using AGSS.DbSet;
using AGSS.Models;
using AGSS.Models.Entities;
using AGSS.Models.Template;
using AGSS.Utilities;
using asg_form;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.Identity;
using Microsoft.EntityFrameworkCore;
using Microsoft.IdentityModel.Tokens;
using Microsoft.OpenApi.Models;

var builder = WebApplication.CreateBuilder(args);

var configuration=builder.Configuration;
var domain = builder.Configuration["Auth0:Domain"];
var audience = builder.Configuration["Auth0:Audience"];

builder.Services.AddCors(options =>
{
    options.AddPolicy("AllowAll", builder =>
    {
        builder.AllowAnyOrigin() // 允许所有来源
            .AllowAnyHeader()
            .AllowAnyMethod();
    });
});


// 数据库配置(PGSQL)
builder.Services.AddDbContext<ApplicationDbContext>(opt =>
    opt.UseNpgsql(builder.Configuration.GetConnectionString("DBContext")));

// Identity 配置
builder.Services.AddIdentityCore<UserModel>(options =>
{
    options.Password.RequireDigit = false;
    options.Password.RequireLowercase = false;
    options.Password.RequireNonAlphanumeric = false;
    options.Password.RequireUppercase = false;
    options.Password.RequiredLength = 6;
    options.Tokens.PasswordResetTokenProvider = TokenOptions.DefaultEmailProvider;
    options.Tokens.EmailConfirmationTokenProvider = TokenOptions.DefaultEmailProvider;
})
.AddRoles<RoleModel>()
.AddEntityFrameworkStores<ApplicationDbContext>()
.AddDefaultUI()
;

    // 注册 UserService
  //  builder.Services.AddScoped<UserService>();

builder.Services.AddScoped<Jwt>();





builder.Services.Configure<JWTOptions>(builder.Configuration.GetSection("JWT"));

builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
    .AddJwtBearer(x =>
    {
        var jwtOpt = builder.Configuration.GetSection("JWT").Get<JWTOptions>();
        byte[] keyBytes = Encoding.UTF8.GetBytes(jwtOpt.SigningKey);
        var secKey = new SymmetricSecurityKey(keyBytes);
        x.TokenValidationParameters = new()
        {
            ValidateIssuer = false,
            ValidateAudience = false,
            ValidateLifetime = true,
            ValidateIssuerSigningKey = true,
            IssuerSigningKey = secKey
        };
    })
    .AddCookie("Identity.External");



builder.Services.AddAuthorization();

builder.Services.AddControllers();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();

builder.Services.AddSwaggerGen(c =>
{
    c.SwaggerDoc("v1", new OpenApiInfo { Title = "ZeroNode后端文档", Version = "1.0.0", Description = "使用了Dotnet9.0，数据库采用PGSql，作者：罗澜，7000" });
    var xmlFile = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";
    var xmlPath = Path.Combine(AppContext.BaseDirectory, xmlFile);
    c.IncludeXmlComments(xmlPath);
    c.AddSecurityDefinition("Bearer", new OpenApiSecurityScheme
    {
        In = ParameterLocation.Header,
        Type = SecuritySchemeType.ApiKey,
        Description = "直接在下框中输入Bearer {token}（注意两者之间是一个空格）",
        Name = "Authorization",
        BearerFormat = "JWT",
        Scheme = "Bearer"
    });
    c.AddSecurityRequirement(new OpenApiSecurityRequirement
    {
        {
            new OpenApiSecurityScheme
            {
                Reference = new OpenApiReference
                {
                    Type = ReferenceType.SecurityScheme,
                    Id = "Bearer"
                }
            },
            new string[] { }
        }
    });
});

var app = builder.Build();

app.UseCors("AllowAll");

// 配置Swagger
app.UseSwagger();
app.UseSwaggerUI();

app.UseHttpsRedirection();
app.UseStaticFiles();
app.UseRouting();
app.UseAuthentication();

app.UseAuthorization();

// 自定义中间件 把404变成200
app.Use(async (context, next) =>
{
    await next(); // 先执行后续中间件

    // 如果响应是 404 且未修改过
    if (context.Response.StatusCode == 404 && !context.Response.HasStarted)
    {
        context.Response.StatusCode = 200; // 改为 200
        context.Response.ContentType = "application/json";

        // 自定义响应内容
        await context.Response.WriteAsJsonAsync(new ReturnTemplate(404, "未能找到资源吖！", null!));
    }
});

// 控制器路由
app.MapControllers();

app.MapRazorPages();

app.Run();