在ASP.NET Core中使用Swagger中的JWT(授权:承载)

Question

我正在ASP.NET Core 1.0中创建一个REST api.我正在使用Swagger进行测试,但现在我为某些路线添加了JWT授权.(带UseJwtBearerAuthentication)

是否可以修改Swagger请求的标头,以便[Authorize]可以测试具有该属性的路由？

Answer 1

我努力解决同样的问题,并在这篇博文中找到了一个可行的解决方案:http: //blog.sluijsveld.com/28/01/2016/CustomSwaggerUIField

它归结为在配置选项中添加它

services.ConfigureSwaggerGen(options =>
{
   options.OperationFilter<AuthorizationHeaderParameterOperationFilter>();
});

和operationfilter的代码

public class AuthorizationHeaderParameterOperationFilter : IOperationFilter
{
   public void Apply(Operation operation, OperationFilterContext context)
   {
      var filterPipeline = context.ApiDescription.ActionDescriptor.FilterDescriptors;
      var isAuthorized = filterPipeline.Select(filterInfo => filterInfo.Filter).Any(filter => filter is AuthorizeFilter);
      var allowAnonymous = filterPipeline.Select(filterInfo => filterInfo.Filter).Any(filter => filter is IAllowAnonymousFilter);

      if (isAuthorized && !allowAnonymous)
      {
          if (operation.Parameters == null)
             operation.Parameters = new List<IParameter>();

          operation.Parameters.Add(new NonBodyParameter
          {                    
             Name = "Authorization",
             In = "header",
             Description = "access token",
             Required = true,
             Type = "string"
         });
      }
   }
}

然后,您将在swagger中看到一个额外的授权TextBox,您可以在其中以"Bearer {jwttoken}"格式添加您的令牌,并且您应该在您的招摇请求中获得授权.

Answer 2

目前,Swagger具有使用JWT-token进行身份验证的功能,并且可以自动将标记添加到标头中(我使用的是Swashbuckle.AspNetCore 1.1.0).

以下代码应该有助于实现这一目标.

在Startup.ConfigureServices()中:

services.AddSwaggerGen(c =>
{
    // Your custom configuration
    c.SwaggerDoc("v1", new Info { Title = "My API", Version = "v1" });
    c.DescribeAllEnumsAsStrings();
    // JWT-token authentication by password
    c.AddSecurityDefinition("oauth2", new OAuth2Scheme
    {
        Type = "oauth2",
        Flow = "password",
        TokenUrl = Path.Combine(HostingEnvironment.WebRootPath, "/token"),
        // Optional scopes
        //Scopes = new Dictionary<string, string>
        //{
        //    { "api-name", "my api" },
        //}
    });
});

如果您的端点不同,请检查并配置TokenUrl.

在Startup.Configure()中:

app.UseSwagger();
app.UseSwaggerUI(c =>
{
    c.SwaggerEndpoint("/swagger/v1/swagger.json", "API V1");

    // Provide client ID, client secret, realm and application name (if need)

    // Swashbuckle.AspNetCore 4.0.1
    c.OAuthClientId("swagger-ui");
    c.OAuthClientSecret("swagger-ui-secret");
    c.OAuthRealm("swagger-ui-realm");
    c.OAuthAppName("Swagger UI");

    // Swashbuckle.AspNetCore 1.1.0
    // c.ConfigureOAuth2("swagger-ui", "swagger-ui-secret", "swagger-ui-realm", "Swagger UI");
});

如果您通过令牌进行身份验证的端点遵循OAuth2标准,则所有端点都应该有效.但为了以防万一,我添加了此端点的示例:

public class AccountController : Controller
{
    [ProducesResponseType(typeof(AccessTokens), (int)HttpStatusCode.OK)]
    [ProducesResponseType((int)HttpStatusCode.BadRequest)]
    [ProducesResponseType((int)HttpStatusCode.Unauthorized)]
    [HttpPost("/token")]
    public async Task<IActionResult> Token([FromForm] LoginModel loginModel)
    {
        switch (loginModel.grant_type)
        {
            case "password":
                var accessTokens = // Authentication logic
                if (accessTokens == null)
                    return BadRequest("Invalid user name or password.");
                return new ObjectResult(accessTokens);

            case "refresh_token":
                var accessTokens = // Refresh token logic
                if (accessTokens == null)
                    return Unauthorized();
                return new ObjectResult(accessTokens);

            default:
                return BadRequest("Unsupported grant type");
        }
    }
}

public class LoginModel
{
    [Required]
    public string grant_type { get; set; }

    public string username { get; set; }
    public string password { get; set; }
    public string refresh_token { get; set; }
    // Optional
    //public string scope { get; set; }
}

public class AccessTokens
{
    public string access_token { get; set; }
    public string refresh_token { get; set; }
    public string token_type { get; set; }
    public int expires_in { get; set; }
}

Answer 3

感谢Pavel K. 的回答，这就是我最终在 ASP.NET Core 2.2 和 Swagger 4.0.1 中解决这个问题的方法。

在 Startup.cs ConfigureServices() 中：

public void ConfigureServices(IServiceCollection services)
{
    .
    .
    .
    services.AddSwaggerGen(c =>
    {
        c.SwaggerDoc("v1", new Info { Title = "...", Version = "v1" });
        .
        .
        .
        c.AddSecurityDefinition("Bearer", new OAuth2Scheme
        {
            Flow = "password",
            TokenUrl = "/token"
        });

       // It must be here so the Swagger UI works correctly (Swashbuckle.AspNetCore.SwaggerUI, Version=4.0.1.0)
       c.AddSecurityRequirement(new Dictionary<string, IEnumerable<string>>
       {
           {"Bearer", new string[] { }}
       });
    });
    .
    .
    .
}

在 Startup.cs Configure() 中：

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
    .
    .
    .
    app.UseSwagger();
    app.UseSwaggerUI(c =>
    {
        c.SwaggerEndpoint("/swagger/v1/swagger.json", "...");
        // Provide client ID, client secret, realm and application name (if need)
        c.OAuthClientId("...");
        c.OAuthClientSecret("...");
        c.OAuthRealm("...");
        c.OAuthAppName("...");
    });
    .
    .
    .
}

下面是我如何制作一个端点来发出 JWT 令牌：

[ApiController, Route("[controller]")]
public class TokenController : ControllerBase
{
    [HttpPost, AllowAnonymous]
    public async Task<ActionResult<AccessTokensResponse>> RequestToken([FromForm]LoginRequest request)
    {
        var claims = await ValidateCredentialAndGenerateClaims(request);

        var now = DateTime.UtcNow;
        var securityKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_setting.SecurityKey));
        var signingCredentials = new SigningCredentials(securityKey, SecurityAlgorithms.HmacSha256);

        var token = new JwtSecurityToken(
            issuer: _setting.Issuer,
            audience: _setting.Audience,
            claims: claims,
            notBefore: now,
            expires: now.AddMinutes(_setting.ValidDurationInMinute),
            signingCredentials: signingCredentials);

        return Ok(new AccessTokensResponse(token));
    }
}

您验证用户名和密码（和/或 client_id 和 clinet_secret）的所有规则和逻辑都将在ValidateCredentialAndGenerateClaims().

如果你只是想知道，这些是我的请求和响应模型：

/// <summary>
/// Encapsulates fields for login request.
/// </summary>
/// <remarks>
/// See: https://www.oauth.com/oauth2-servers/access-tokens/
/// </remarks>
public class LoginRequest
{
    [Required]
    public string grant_type { get; set; }
    public string username { get; set; }
    public string password { get; set; }
    public string refresh_token { get; set; }
    public string scope { get; set; }

    public string client_id { get; set; }
    public string client_secret { get; set; }
}

/// <summary>
/// JWT successful response.
/// </summary>
/// <remarks>
/// See: https://www.oauth.com/oauth2-servers/access-tokens/access-token-response/
/// </remarks>
public class AccessTokensResponse
{
    /// <summary>
    /// Initializes a new instance of <seealso cref="AccessTokensResponse"/>.
    /// </summary>
    /// <param name="securityToken"></param>
    public AccessTokensResponse(JwtSecurityToken securityToken)
    {
        access_token = new JwtSecurityTokenHandler().WriteToken(securityToken);
        token_type = "Bearer";
        expires_in = Math.Truncate((securityToken.ValidTo - DateTime.UtcNow).TotalSeconds);
    }

    public string access_token { get; set; }
    public string refresh_token { get; set; }
    public string token_type { get; set; }
    public double expires_in { get; set; }
}

Answer 4

为了扩展对我有用的HansVG答案（谢谢），并且由于我的贡献点不足，因此我无法直接回答emseetea问题。拥有“授权”文本框后，您将需要调用生成令牌的端点，该令牌将位于端点的必须[Authorize]区域之外。

调用该端点从端点生成令牌后，您可以将其复制到该端点的结果中。然后，您将拥有必须在[授权]的其他区域中使用的令牌。只需将其粘贴到文本框中即可。如HansVG所述，确保以正确的格式添加它，并且需要包含“ bearer”。格式=“ bearer {token}”。

Answer 5

您可以使用此swagger 配置通过 API 调用添加任何其他标头

// Register the Swagger generator, defining 1 or more Swagger documents
services.AddSwaggerGen(c =>
{
    c.SwaggerDoc("v1", new Info
    {
        Version = "v1",
        Title = "Core API",
        Description = "ASP.NET Core API",
        TermsOfService = "None",
        Contact = new Contact
        {
            Name = "Raj Kumar",
            Email = ""
        },
        License = new License
        {
            Name = "Demo"
        }
    });
    c.AddSecurityDefinition("Bearer", new ApiKeyScheme()
    {
        Description = "JWT Authorization header using the Bearer scheme. Example: \"Authorization: Bearer {token}\"",
        Name = "Authorization",
        In = "header",
        Type = "apiKey"
    });
    c.AddSecurityRequirement(new Dictionary<string, IEnumerable<string>>
    {
    {"Bearer",new string[]{}}
    });
});