Question

我已经写了一个与request模块一起使用的身份验证请求，但是由于'request'自请求以来，我尝试使用的node-fetch模块未能返回所需的'authentication token'cookie。已弃用。

这是使用“ request”的工作代码

  var callback1 = function(err, httpResponse, body){
    console.log("Correctly prints all the cookies we want: ");
    console.log(httpResponse.headers["set-cookie"]);
    if (err){console.log("here it is!"); throw err;}
    else {
      //do more with response
    }
  };
 var callback0 = function(err, httpResponse0, body){

    console.log("Check that sent cookies are identical, from request:");
    console.log(httpResponse0.headers["set-cookie"][0].substr(0,httpResponse0.headers["set-cookie"][0].indexOf(";")));
    if (err){throw err;}
    else {
    var options1 = {
      url: urlString1
      ,headers:{
      'Host': hostName
      ,'User-Agent': myUserAgent
      ,'Accept': myAccept 
      ,'Accept-Language':myAcceptLanguage 
      ,'Accept-Encoding': myAcceptEncoding 
      ,'Referer': "https://"+hostName+'/login'
      ,'Cookie': httpResponse0.headers["set-cookie"][0].substr(0,httpResponse0.headers["set-cookie"][0].indexOf(";"))
      ,'Content-Type':  "application/x-www-form-urlencoded"
      ,'Content-Length': Buffer.byteLength(querystring.stringify(postData))
      ,'Connection': "keep-alive"
      ,'Upgrade-Insecure-Requests': "1"
      ,'DNT': "1"
      ,'TE': "Trailers"
      }
      ,form: {email: myEmail, password: myPassword}
    };
    request.post(options1, callback1);
    }
  }
 var options0 = {
    url: urlString0
    ,headers:{
    'Host': hostName
    ,'User-Agent': myUserAgent
    ,'Accept': myAccept 
    ,'Accept-Language':myAcceptLanguage 
    ,'Accept-Encoding': myAcceptEncoding 
    ,'Referer': "https://"+hostName
    ,'Connection': "keep-alive"
    ,'Upgrade-Insecure-Requests': "1"
    }
  };
  request(options0, callback0);

这是节点获取中的代码，无法正确返回auth_token cookie：

  const fetchOptions0 = {
      method: 'GET', 
      headers:{
      'Host': hostName
      ,'User-Agent': myUserAgent
      ,'Accept': myAccept 
      ,'Accept-Language':myAcceptLanguage 
      ,'Accept-Encoding': myAcceptEncoding 
      ,'Referer': "https://"+hostName
      ,'Connection': "keep-alive"
      ,'Upgrade-Insecure-Requests': "1"
      }
  }
  fetch(urlString0, fetchOptions0)
  .then(res0 => {
    console.log("Check that sent cookies are identical, from fetch:");
    console.log(res0.headers.raw()['set-cookie'][0].substr(0, res0.headers.raw()['set-cookie'][0].indexOf(";")));
    const FormData = require('form-data');
    const myForm = new FormData();
    myForm.append('email', myEmail);
    myForm.append('password', myPassword);
    var fetchOptions1 = {
      method: 'POST'
      ,headers:{
      'Host': hostName
      ,'User-Agent': myUserAgent
      ,'Accept': myAccept 
      ,'Accept-Language':myAcceptLanguage 
      ,'Accept-Encoding': myAcceptEncoding 
      ,'Referer': "https://"+hostName+'/login'
      ,'Cookie': res0.headers.raw()['set-cookie'][0].substr(0, res0.headers.raw()['set-cookie'][0].indexOf(";"))
      ,'Content-Type':  "application/x-www-form-urlencoded"
      ,'Content-Length': Buffer.byteLength(querystring.stringify(postData))
      ,'Connection': "keep-alive"
      ,'Upgrade-Insecure-Requests': "1"
      ,'DNT': "1"
      ,'TE': "Trailers"
    }
    ,body:myForm
    };
    fetch(urlString1, fetchOptions1)
    .then(res1=> {console.log("Incorrect cookie, missing auth:"); console.log(res1.headers.raw()['set-cookie']);});
    });

我已尝试按照this答案中的建议使用JSON.stringify编写表单数据，但这无济于事。

Answer 1

有

，格式：{email：myEmail，密码：myPassword}

在request版本的代码中。是 application/x-www-form-urlencoded
参见https://www.npmjs.com/package/request#applicationx-www-form-urlencoded-url-encoded-forms）

但是有

body：myForm

在fetch版本的代码中。这是 multipart/form-data
见

但还是

“内容类型”：“ application / x-www-form-urlencoded”

fetch版

如果您的API端点不接受multipart/form-data，则您可能应该从FormData切换到URLSearchParams。
参见https://www.npmjs.com/package/node-fetch#post-with-form-parameters

Answer 2

要将application/x-www-form-urlencoded有效载荷发送到正文中，只需传递URLSearchParams对象

const params = new URLSearchParams();
params.append("email", myEmail);
params.append("password", myPassword);

fetch(urlString1, {
  headers: {
    // your headers
    // omit content-length and content-type because node-fetch
    // will handle that for you
  },
  body: params
}).then(response => {
  console.log(response.headers.raw());
})

在您的示例中，您似乎正在使用FormData，这导致节点抓取将multipart/formdata写入为标头的content-type。

您还可能需要检查授权服务器代码，以查看其是否正确发送了set-cookie标头。

经过测试：

node-fetch v2.6.0
nodejs v12.14.0

身份验证POST适用于“请求”，但不适用于“节点获取”

2 个答案: