【发布时间】：2015-08-28 18:32:23
【问题描述】：
我正在尝试通过 curl 从服务器获取数据，但在授权后我收到一个空响应。该服务器上的站点使用 AJAX 来显示内容，所以首先我检查了在通过浏览器与其交互时发送的标题和查询参数。
一般标题：
Remote Address:*.*.*.*:80
Request URL:http://example.com/search/search/?0.42697851033881307
Request Method:POST
Status Code:200 OK
表单数据：
QUERY:29061
QUERY_TYPE:2
QUERY_DATA:S1
PKW:X
LKW:X
FORMAT:json
LANG:ru
这是无休止的谷歌搜索和堆栈溢出的结果：
<?php
$curl = curl_init('http://example.com/authorization/login/');
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_COOKIEJAR, 'cookie.txt');
curl_setopt($curl, CURLOPT_COOKIEFILE, 'cookie.txt');
curl_setopt($curl, CURLOPT_REFERER, 'http://example.com/');
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, [
'LOGIN' => 'MY_LOGIN',
'PASSWORD' => 'MY_PASSWORD',
'REMEMBER' => true,
'FORMAT' => 'json',
'LANG' => 'ru'
]);
curl_exec($curl);
curl_close($curl);
$curl = curl_init('http://example.com/search/search/?0.42697851033881307');
curl_setopt($curl, CURLOPT_HEADER, true);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_COOKIEJAR, 'cookie.txt');
curl_setopt($curl, CURLOPT_COOKIEFILE, 'cookie.txt');
curl_setopt($curl, CURLOPT_REFERER, 'http://example.com/');
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
$postFields = json_encode([
'FORMAT' => 'json',
'LANG' => 'ru',
'QUERY' => '29061',
'QUERY_TYPE' => '2',
'QUERY_DATA' => 'S1',
'PKW' => 'X',
'LKW' => 'X'
]);
curl_setopt($curl, CURLOPT_CUSTOMREQUEST, 'POST');
curl_setopt($curl, CURLOPT_POSTFIELDS, $postFields);
curl_setopt($curl, CURLOPT_HTTPHEADER, [
'X-Requested-With: XMLHttpRequest',
]);
$response = curl_exec($curl);
curl_close($curl);
var_dump($response);
下面是回复：
string(1699) "HTTP/1.1 302 Moved Temporarily
Server: nginx/1.9.2
Date: Fri, 28 Aug 2015 14:57:20 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
X-Powered-By: PHP/5.6.10
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Set-Cookie: ci_sessions=...; expires=Sat, 27-Aug-2016 14:57:21 GMT; Max-Age=31536000; path=/; httponly
Location: http://example.com/authorization/setVkorgInfo
HTTP/1.1 302 Moved Temporarily
Server: nginx/1.9.2
Date: Fri, 28 Aug 2015 14:57:21 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
X-Powered-By: PHP/5.6.10
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Set-Cookie: ci_sessions=...; expires=Sat, 27-Aug-2016 14:57:21 GMT; Max-Age=31536000; path=/; httponly
Set-Cookie: VKORG=5000; expires=Sat, 27-Aug-2016 14:57:21 GMT; Max-Age=31536000; path=/
Location: http://example.com/
HTTP/1.1 200 OK
Server: nginx/1.9.2
Date: Fri, 28 Aug 2015 14:57:21 GMT
Content-Type: application/json; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
X-Powered-By: PHP/5.6.10
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Set-Cookie: ci_sessions=...; expires=Sat, 27-Aug-2016 14:57:22 GMT; Max-Age=31536000; path=/; httponly
{
"status": true,
"arr_messages": [],
"data": []
}"
当我通过浏览器检索数据时，我在 Chrome 的控制台中看到一个对象，该对象在“数据”：数组中包含所需的数据，但在我的脚本中它是空的。我的请求有什么问题？
截图如下：http://joxi.ru/XEA48NSQozPAbz
如果我发送错误的参数，我会得到：
{
"status": false,
"arr_messages": [
{
"id": "123456",
"login": "MY_LOGIN",
"type": "E",
"text": "Error inputs",
"date": "2015-08-28 22:24:20"
}
],
"data": []
}
因此，如果我得到 status: true 和 empty "arr_messages" 那么我正在发送正确的请求。
UPD：这是获取内容的 AJAX 函数：
var getApiAjax=function(url, req, callback, errorcallback, async)
{
if(typeof(errorcallback)=="undefined")
{
errorcalback=function(){return false;}
}
if(typeof(async)=="undefined")
{
async=true;
}
req.FORMAT = "json";
req.LANG = "ru";
var xhr=$.ajax(
{
url: url+"?"+Math.random(),
type: "POST",
data: req,
async: async,
dataType: "json",
success: function(resp)
{
var showMes = true;
if( spinnerModal.isShowSpinner() ){
spinnerModal.hidePleaseWait();
showMes = false;
}
if( typeof resp.arr_messages != "undefined" && resp.arr_messages.length ) {
if (resp.status) {
showMessage( resp.arr_messages, callback, resp );
} else {
showMessage( resp.arr_messages, errorcallback, resp );
}
if(showMes) informModal.showMessage();
} else {
if (resp.status) {
callback( resp );
} else {
errorcallback( resp )
}
}
},
error: function(msg)
{
var arr_messages = new Array();
if( spinnerModal.isShowSpinner() ) spinnerModal.hidePleaseWait();
if( typeof msg == "string" )
{
arr_messages.push( { 'text' : msg, 'type' : 'E' } );
showMessage( arr_messages, errorcallback, msg, true );
}
else
{
errorcallback();
}
}
});
return xhr;
};
我可以从浏览器的控制台调用这个函数，得到我想要的东西
getApiAjax("/search/search/",{
'QUERY' : "29061",
'QUERY_TYPE' : "2",
'QUERY_DATA' : "S1",
'PKW' : "X",
'LKW' : "X"
})
截图：http://joxi.ru/WL211LSbgN42Xq
所以我无法弄清楚 curl 请求有什么问题:(
【问题讨论】：
-
尝试正常发送 $postFields - 作为一个数组。不是 JSON。如果它是真正的 HTML 表单，则数据不会作为 JSON 发送，而是作为 html 查询发送。
-
我以前试过，现在又试了一次，没有运气:(