我有一个使用JWT令牌进行身份验证的.NET Core 2.2 Web API。令牌是由单独的API上的Identity Server 4生成的。
所有身份验证和授权都与JWT令牌一样预期。但我需要扩展此功能以允许使用API密钥。如果提供了API密钥,我希望加载该特定用户的声明,将其添加到请求中,并让Authorize属性处理所设置的策略。
以下是我根据这里的建议完成的工作。我的错误与链接的帖子完全相同,并且我也可以使用一组角色和GenericPrincipal使其正常工作,但我正在使用AuthorizationPolicies,并且在当前实现中始终收到401错误,给出类似于上面链接的错误。
Startup.cs
public void ConfigureServices(IServiceCollection services)
{
services.AddMvcCore(options =>
{
options.Filters.Add(new RequireHttpsAttribute());
options.Filters.Add(new AuthorizeFilter());
options.Filters.Add(typeof(ValidateModelStateAttribute));
options.AllowEmptyInputInBodyModelBinding = true;
})
.AddAuthorization(options =>
{
options.AddPolicies();
})
.AddJsonFormatters();
services.AddAuthentication(IdentityServerAuthenticationDefaults.AuthenticationScheme)
.AddIdentityServerAuthentication(options =>
{
options.Authority = Configuration["Authentication:Authority"];
options.RequireHttpsMetadata = true;
options.ApiName = Configuration["Authentication:ApiName"];
});
services.AddCors();
}
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
else
{
// 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.UseCors(policy =>
{
policy.AllowAnyHeader();
policy.AllowAnyMethod();
policy.AllowAnyOrigin();
});
app.UseHttpsRedirection();
app.UseMiddleware<ApiKeyMiddleware>();
app.UseAuthentication();
app.UseMvc();
}
AuthorizationPolicies.cs
public static class AuthorizationPolicies
{
public const string ReadUsersPolicy = "ReadUsers";
public const string EditUsersPolicy = "EditUsers";
public static void AddPolicies(this AuthorizationOptions options)
{
options.AddPolicy(ReadUsersPolicy, policy => policy.RequireClaim(Foo.Permission, Foo.CanReadUsers));
options.AddPolicy(EditUsersPolicy, policy => policy.RequireClaim(Foo.Permission, Foo.CanEditUsers));
}
}
ApiKeyMiddleware
public class ApiKeyMiddleware
{
public ApiKeyMiddleware(RequestDelegate next)
{
_next = next;
}
private readonly RequestDelegate _next;
public async Task Invoke(HttpContext context)
{
if (context.Request.Path.StartsWithSegments(new PathString("/api")))
{
if (context.Request.Headers.Keys.Contains("ApiKey", StringComparer.InvariantCultureIgnoreCase))
{
var headerKey = context.Request.Headers["ApiKey"].FirstOrDefault();
await ValidateApiKey(context, _next, headerKey);
}
else
{
await _next.Invoke(context);
}
}
else
{
await _next.Invoke(context);
}
}
private async Task ValidateApiKey(HttpContext context, RequestDelegate next, string key)
{
var userClaimsService = context.RequestServices.GetService<IUserClaimsService>();
List<string> permissions = (await userClaimsService.GetAllPermissionsForApiKey(key))?.ToList();
if (permissions == null)
{
context.Response.StatusCode = (int)HttpStatusCode.Unauthorized;
await context.Response.WriteAsync("Invalid Api Key");
return;
}
ICollection<Claim> claims = permissions.Select(x => new Claim(FooClaimTypes.Permission, x)).ToList();
var identity = new ClaimsIdentity(claims);
var principal = new ClaimsPrincipal(identity);
context.User = principal;
await next.Invoke(context);
}
}
UsersController.cs
[Authorize(AuthorizationPolicies.EditUsersPolicy)]
public async Task<IActionResult> Put([FromBody] UserUpdateDto userUpdateDto)
{
...
}
ValidateApiKey
函数中设置一个断点,并检查是否创建了具有正确声明的主体以满足您的策略。 - Vidmantas Blazevicius