使用Chrome读取https://bet.hkjc.com/racing/default.aspx是正常操作。
当我使用php curl时,下载内容无效。由于该站点总是更改cookie,因此名称为“ BotMitigationCookie_9518109003995423458”。
使用php curl读取https://bet.hkjc.com/racing/default.aspx将获得以下内容。这需要浏览器处理javascript代码并更新cookie'BotMitigationCookie_9518109003995423458'
在第3行和第4行中,总是在每个重新加载页面上更改该值。
<head>
<script>
Challenge=886963;
ChallengeId=65194606;
GenericErrorMessageCookies="Cookies must be enabled in order to view this page.";
</script>
<script>
function test(var1)
{
var var_str=""+Challenge;
var var_arr=var_str.split("");
var LastDig=var_arr.reverse()[0];
var minDig=var_arr.sort()[0];
var subvar1 = (2 * (var_arr[2]))+(var_arr[1]*1);
var subvar2 = (2 * var_arr[2])+var_arr[1];
var my_pow=Math.pow(((var_arr[0]*1)+2),var_arr[1]);
var x=(var1*3+subvar1)*1;
var y=Math.cos(Math.PI*subvar2);
var answer=x*y;
answer-=my_pow*1;
answer+=(minDig*1)-(LastDig*1);
answer=answer+subvar2;
return answer;
}
</script>
<script>
client = null;
if (window.XMLHttpRequest)
{
var client=new XMLHttpRequest();
}
else
{
if (window.activeXObject)
{
client = new activeXObject('MSXML2.XMLHTTP.3.0');
};
}
if (!((!!client)&&(!!Math.pow)&&(!!Math.cos)&&(!![].sort)&&(!![].reverse)))
{
document.write("Not all needed JavaScript methods are supported.<BR>");
}
else
{
client.onreadystatechange = function()
{
if(client.readyState == 4)
{
var MyCookie=client.getResponseHeader("X-AA-Cookie-Value");
if ((MyCookie == null) || (MyCookie==""))
{
document.write(client.responseText);
return;
}
var cookieName = MyCookie.split('=')[0];
if (document.cookie.indexOf(cookieName)==-1)
{
document.write(GenericErrorMessageCookies);
return;
}
window.location.reload(true);
}
};
y=test(Challenge);
client.open("POST",window.location,true);
client.setRequestHeader('X-AA-Challenge-ID',ChallengeId);
client.setRequestHeader('X-AA-Challenge-Result',y);
client.setRequestHeader('X-AA-Challenge',Challenge);
client.setRequestHeader('Content-Type','text/plain');
client.send();
}
</script>
</head>
<body>
<noscript>JavaScript must be enabled in order to view this page.</noscript>
</body>
</HTML>
问题1: 任何使用php的方法都能获得正确的https://bet.hkjc.com/racing/default.aspx内容?
第2部分: 如果第1题不起作用,如何将以上javascript的XMLHttpRequest转换为php,以获取“ BotMitigationCookie_9518109003995423458”的cookie。因为我不了解setRequestHeader如何工作并获取cookie。