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jquery – 使用CORS预检OPTIONS请求的Ajax防伪POST(302重定向)

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对于jquery – 使用CORS预检OPTIONS请求的Ajax防伪POST(302重定向)感兴趣的读者,本文将会是一篇不错的选择,并为您提供关于302重定向后的AJAX调用将origin设置为null、ajax – AWS S3 CORS 403 OPTIONS请求出错、ajax – 为什么我的跨域POST请求被OPTIONS请求预检?、angularjs – CORS预检请求在Azure托管的Web API中响应302重定向的有用信息。

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jquery – 使用CORS预检OPTIONS请求的Ajax防伪POST(302重定向)

jquery – 使用CORS预检OPTIONS请求的Ajax防伪POST(302重定向)

我最近更新了一个我正在努力检查所有POST请求上的防伪令牌的网站.对于ajax请求,我已经安装了一个prefilter来检查防伪标记并将其添加到标头中

$.ajaxPrefilter(function (options,localOptions,jqXHR) {
    if (options.type == "POST") {
        var token = GetAntiForgeryToken();
        jqXHR.setRequestHeader(token.name,token.value);
    }
});

当以管理员身份登录时,该站点还具有管理工具,该管理员使用CORS将数据发送到单独的管理站点.其中一个工具是AJAX发布请求.标头添加到请求中,它可以正常工作.

另一个工具是GET请求,它返回一个表单,该表单显示在对话框中.这很好用.但是,当提交表单时,预检OPTIONS请求遇到302,我收到错误“预检的响应无效(重定向)”

如果我删除ajaxPrefilter,表单发布工作,但直接发布请求不起作用.启用Prefilter后,直接发布请求有效,但表单发布没有.我很丢失. Access-Control-Allow-Headers中允许使用防伪标头.对两者的要求是:

OPTIONS http://localhost:64789/Example/Example/?_=1464356730712 HTTP/1.1
Host: localhost:64789
Connection: keep-alive
Access-Control-Request-Method: POST
Origin: http://localhost:64947
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML,like Gecko) Chrome/50.0.2661.102 Safari/537.36
Access-Control-Request-Headers: __requestverificationtoken,accept,content-type
Accept: */*
Referer: http://localhost:64947/
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-GB,en-US;q=0.8,en;q=0.6

这个返回302.

OPTIONS http://localhost:64789/Example2/Example2/ HTTP/1.1
Host: localhost:64789
Connection: keep-alive
Access-Control-Request-Method: POST
Origin: http://localhost:64947
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML,en;q=0.6

这个返回200.

任何帮助都非常有用.

解决方法

我认为您忘记为您的表单发送内容类型标题.尝试从此答案中添加一些内容类型: https://stackoverflow.com/a/35452170/1727132

302重定向后的AJAX调用将origin设置为null

302重定向后的AJAX调用将origin设置为null

我正在从域A到域B进行AJAX呼叫。

我的域B检查A是否在允许的域列表中,并将设置Access-Control-allow-Origin为域A。到目前为止,一切都很好。

域B通过使用Location标头向域C发送302重定向来响应请求。

AJAX调用遵循重定向到域C的操作,但具有标头: Origin: null

origin在重定向之后,我希望将标头设置为域A。

谁能向我解释为什么将源设置null为域A而不是域A?

  1. 从域A到B的请求
        GET / HTTP/1.1    Host: domain-B.com    Origin: http://domain-A.com
  1. 来自网域B的回应:
        Access-Control-Allow-Origin: http://domain-A.com    Location: http://domain-C.com
  1. AJAX调用将重定向到域C:
        GET  HTTP/ 1.1    Host: domain-C.com    Origin: null

答案1

小编典典

看到这里,这似乎暗示了它与“对隐私敏感”的上下文有关。

ajax – AWS S3 CORS 403 OPTIONS请求出错

ajax – AWS S3 CORS 403 OPTIONS请求出错

我试图从ajax请求访问驻留在S3中的html文件,我收到403错误.

我在线阅读AWS,如果我这样做,我需要设置AWS CORS规则来修复403错误.

但是,我已经尝试了两天而且没有任何运气.这是我的CORS配置:

<?xml version="1.0" encoding="UTF-8"?>
<CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
<CORSRule>
    <AllowedOrigin>*</AllowedOrigin>
    <AllowedMethod>GET</AllowedMethod>
    <MaxAgeSeconds>3000</MaxAgeSeconds>
    <ExposeHeader>XMLHttpRequest</ExposeHeader>
    <AllowedHeader>x-csrftoken</AllowedHeader>
 </CORSRule>
 </CORSConfiguration>

我的HTTP请求如下:

Accept  text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding gzip,deflate
Accept-Language en-US,en;q=0.5
Access-Control-Request-He...    x-csrftoken
Access-Control-Request-Me...    GET
Connection  keep-alive
Host    xxxxxxxxx.cloudfront.net
Origin  http://localhost:8000
User-Agent  Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:18.0) Gecko/20100101 Firefox/18.0

谁能帮我看看我错过了什么?

谢谢!

解决方法

HTTP 403(Frobidden)并不一定意味着您需要CORS.一种选择是将所有请求发送到云端(相同来源),并在您的分发中提供多个来源和行为.例如:
Beavior   ->  Origin

/api/*    ->  my.api.com
/static/* ->  my.s3.bucket

但是,如果您确实需要跨源请求,则CORS标头应该由cloudfront转发并具有相同的行为,在您的示例中,您可能希望对您允许的标头更宽松(< AllowedHeader> *< / AllowedHeader> ?).但这与浏览器行为的关系比CLoudFront或S3更重要.

ajax – 为什么我的跨域POST请求被OPTIONS请求预检?

ajax – 为什么我的跨域POST请求被OPTIONS请求预检?

根据Mozilla开发人员中心 HTTP access control的文章,如果请求的Content-Type是application / x-www-form-urlencoded,跨站点POST请求可以“简单” – 即不需要预检.

我在Firefox中没有得到这种行为,我根本不理解为什么会这样.这是我的设置代码:

function makeXDomainRequest(url,method,data) {
    var req =
        typeof XDomainRequest !== "undefined" ?
        new XDomainRequest() : new XMLHttpRequest();

    req.open(method || "GET",url,true);

    if (typeof req.onload !== "undefined") {
        req.onload = onResponseLoad;
        req.onerror = onRequestError;
    } else {
        req.onreadystatechange = onRequestStateChange;
    }

    if (data && typeof req.setRequestHeader === "function") {
        req.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
    } else {
        // no way to set Content-Type req header in IE's XDomainRequest:
        // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx
    }

    req.send(data || null);
}

function onResponseLoad() {
    alert("Response!\n" + this.responseText);
}

function onRequestError(args) {
    alert("Error!");
}

function onRequestStateChange() {
    if (this.readyState === 4) {
        if (this.status === 200) {
            onResponseLoad.apply(this);
        } else {
            onRequestError.apply(this);
        }
    }
}

这是我正在ping的服务器:

// thanks to http://saltybeagle.com/cors/ for having this demo endpoint:
var URL = "http://ucommbieber.unl.edu/CORS/cors.PHP";

现在,如果我执行简单的POST请求 – 在上面的代码中将数据作为application / x-www-form-urlencoded发送 – 请求在Firefox中带有OPTIONS请求预检.它没有在Chrome中预检.在运行之前打开fiddler来亲眼看看:

makeXDomainRequest(URL,"POST","name=foobar");
// alerts "Response! Hello CORS [...] You sent a POST request. Your name is foobar"

这是fiddler中的预检OPTIONS请求(请注意Access-Control-Request-Method:POST标头,即使我指定了一个所谓的安全Content-Type而且没有自定义标头):

OPTIONS http://ucommbieber.unl.edu/CORS/cors.PHP HTTP/1.1
Host: ucommbieber.unl.edu
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.8) Gecko/20100722 Firefox/3.6.8
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 115
Connection: keep-alive
Origin: http://localhost
Access-Control-Request-Method: POST

这是怎么回事?这是Firefox中的错误,还是我做错了什么?谢谢!

解决方法

它确实是一个Firefox bug.它最终得到修复FF4b6: https://bugzilla.mozilla.org/show_bug.cgi?id=588920

angularjs – CORS预检请求在Azure托管的Web API中响应302重定向

angularjs – CORS预检请求在Azure托管的Web API中响应302重定向

场景:

我有两个在Windows Azure上单独托管的ASP.NET Web应用程序,它们都与同一个Azure Active Directory租户相关联:

>带有AngularJS SPA前端的MVC应用程序和用于在客户端上处理Azure AD身份验证的adal.js库.
>带有Microsoft OWIN中间件的Web API,用于在服务器上处理Azure AD身份验证.

问题:

当角度引导客户端应用程序时,页面在通过oauth重定向到正确的Identity Authority后正确加载,并且adal.js库正确检索并存储每个应用程序的不同令牌(通过检查“资源/会话 – 存储”选项卡进行验证Chrome开发工具).但是,当客户端应用程序尝试访问或更新API中的任何数据时,CORS预检请求正在响应302重定向到Identity Authority,这会导致控制台中出现以下错误:

XMLHttpRequest cannot load 07001.
The request was redirected to
‘07002{authority-guid}/oauth2/authorize?response_type=id_token&redirect_uri=….etc..etc..’,
which is disallowed for cross-origin requests that require preflight.

示例标头(匿名):

Request
OPTIONS /api/items HTTP/1.1
Host: webapi.azurewebsites.net
Connection: keep-alive
Access-Control-Request-Method: GET
Access-Control-Request-Headers: accept,authorization
Origin: https://mvcapp.azurewebsites.net
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML,like Gecko) Chrome/39.0.2171.99 Safari/537.36
Accept: */*
Referer: https://mvcapp.azurewebsites.net/

Response
HTTP/1.1 302 Found
Content-Length: 504
Location: https://login.windows.net/{authority-guid}/oauth2/authorize?response_type=id_token&redirect_uri=https%3A%2F%2F....etc..etc.%2F&client_id={api-guid}&scope=openid+profile+email&response_mode=form_post&state=...etc...
Server: Microsoft-IIS/8.0
X-Powered-By: ASP.NET
Set-Cookie: ARRAffinity=4f51...snip....redact....db6d;Path=/;Domain=webapi.azurewebsites.net

我做了什么/尝试过

>确保Azure AD租户允许OAou2隐式流,如here和其他地方所述.
>确保API exposes access permissions和MVC / SPA registers for access使用那些公开的权限.
>在API的web.config中明确添加了一个OPTIONS动词处理程序(见下文).
>使用在API服务器上启用CORS的各种组合,OWIN本身以及EnableCorsAttribute(见下文).

问题

有没有办法让Azure AD租户关联的Web API不重定向CORS预检请求?
我在adal.js库和/或OWIN启动代码中缺少一些初始化设置(见下文)?
Azure门户中是否有允许OPTIONS请求通过OWIN管道的设置?

相关代码:

adal.js初始化

angular.module("myApp",["ngRoute","AdalAngular"])

.config(["$routeProvider","$locationProvider","$httpProvider","adalAuthenticationServiceProvider",function ($routeProvider,$locationProvider,$httpProvider,adalProvider) {

        $routeProvider.when("/",{ // other routes omitted for brevity
            templateUrl: "/content/views/home.html",requireADLogin: true // restrict to validated users in the Azure AD tenant
        });

        // CORS support (I've tried with and without this line)
        $httpProvider.defaults.withCredentials = true;

        adalProvider.init({
            tenant: "contoso.onmicrosoft.com",clientId: "11111111-aaaa-2222-bbbb-3333cccc4444",// Azure id of the web app
            endpoints: {
                // URL and Azure id of the web api
                "https://webapi.azurewebsites.net/": "99999999-zzzz-8888-yyyy-7777xxxx6666"
            }
        },$httpProvider);
    }
]);

OWIN中间件初始化

public void ConfigureAuth(IAppBuilder app)
{
    // I've tried with and without the below line and also by passing
    // in a more restrictive and explicit custom CorsOptions object
    app.UseCors(CorsOptions.AllowAll);

    app.UseWindowsAzureActiveDirectoryBearerAuthentication(
        new WindowsAzureActiveDirectoryBearerAuthenticationoptions
        {
            TokenValidationParameters = new TokenValidationParameters
            {
                // Azure id of the Web API,also tried the client app id
                ValidAudience = "99999999-zzzz-8888-yyyy-7777xxxx6666"
            },Tenant = "contoso.onmicrosoft.com"
        }
    );

    // I've tried with and without this
    app.UseWebApi(GlobalConfiguration.Configuration);
}

WebApiConfig初始化

public static void Register(HttpConfiguration config)
{
    // I've tried with and without this and also using both this
    // and the OWIN CORS setup above. Decorating the ApiControllers
    // or specific Action methods with a similar EnableCors attribute
    // also doesn't work.
    var cors = new EnableCorsAttribute("https://mvcapp.azurewebsites.net","*","*")
    {
        cors.SupportsCredentials = true // tried with and without
    };
    config.EnableCors(cors);

    // Route registration and other initialization code removed
}

API OPTIONS动词处理程序注册

<system.webServer>
  <handlers>
    <remove name="ExtensionlessUrlHandler-Integrated-4.0" />
    <remove name="OPTIONsverbHandler" />
    <remove name="TRACEVerbHandler" />
    <add name="OPTIONSHandler" path="*" verb="OPTIONS" modules="IsapiModule" scriptprocessor="C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" />
    <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
  </handlers>
</system.webServer>

相关资源

在某个时间,我已经尝试了以下(以及更多)论坛和博客文章以及github示例代码中的所有可以想象的组合.

> ADAL JavaScript and AngularJS – Deep Dive
> Secure ASP.NET Web API 2 using Azure Active Directory,Owin Middleware,and ADAL
> Token Based Authentication using ASP.NET Web API 2,Owin,and Identity
> AzureADSamples/SinglePageApp-DotNet (github)
> AngularJSCORS (github)
> How to make CORS Authentication in WebAPI 2?
> AngularJS and OWIN Authentication on WebApi

我有类似的问题找出适合的包.只有Owin cors足以设置.请先检查owin.cors的包.
<package id="Microsoft.Owin" version="3.0.0" targetFramework="net45" />
<package id="Microsoft.Owin.Cors" version="2.1.0" targetFramework="net45" />

处理程序的WebConfig选项:

<system.webServer>
<handlers>
  <remove name="ExtensionlessUrlHandler-Integrated-4.0" />
  <remove name="OPTIONsverbHandler" />
  <remove name="TRACEVerbHandler" />
  <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
</handlers>

你正在使用owin config中的specsiying cors选项做对了.

public void ConfigureAuth(IAppBuilder app)
    {
        app.UseWindowsAzureActiveDirectoryBearerAuthentication(
            new WindowsAzureActiveDirectoryBearerAuthenticationoptions
            {
                Audience = ConfigurationManager.AppSettings["ida:Audience"],Tenant = ConfigurationManager.AppSettings["ida:Tenant"]

            });
        app.UseCors(Microsoft.Owin.Cors.CorsOptions.AllowAll);
    }

控制器不需要CORS相关属性.

[Authorize]
public class ContactsController : ApiController
{

    // GET api/<controller>
    public IEnumerable<string> Get()
    {
        return new string[] { "person1","person2" };
    }

    // GET api/<controller>/5
    public string Get(int id)
    {
        return "person" + id;
    }

WebAPIConfig不需要与CORS相关的条目.

工作示例如下:https://github.com/omercs/corsapisample

您可以使用以下代码在应用中进行测试:

app.factory('contactService',['$http',function ($http) {
var serviceFactory = {};

var _getItems = function () {
    $http.defaults.useXDomain = true;
    delete $http.defaults.headers.common['X-Requested-With'];
    return $http.get('http://yourhostedpage/api/contacts');
};

serviceFactory.getItems = _getItems;

return serviceFactory;

}]);

预检回应示例:

Remote Address:127.0.0.1:8888
Request URL:http://localhost:39725/api/contacts
Request Method:OPTIONS
Status Code:200 OK
Request Headersview source
Accept:*/*
Accept-Encoding:gzip,deflate,sdch
Accept-Language:en-US,en;q=0.8
Access-Control-Request-Headers:accept,authorization
Access-Control-Request-Method:GET
Host:localhost:39725
Origin:http://localhost:49726
Proxy-Connection:keep-alive
Referer:http://localhost:49726/myspa.html
User-Agent:Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML,like Gecko) Chrome/39.0.2171.99 Safari/537.36
Response Headersview source
Access-Control-Allow-Credentials:true
Access-Control-Allow-Headers:authorization
Access-Control-Allow-Origin:http://localhost:49726
Content-Length:0
Date:Fri,23 Jan 2015 01:10:54 GMT
Server:Microsoft-IIS/8.0
X-Powered-By:ASP.NET

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