如何通过DOM验证年龄验证 [英] How to pass Age Verification with DOM

问题描述

我尝试从Steam商店页面中提取一些图片网址，例如：
http://store.steampowered.com/app/35700/

http://store.steampowered.com/app/252490/

I'm attempting to pull some image URLs from Steam store pages, such as: http://store.steampowered.com/app/35700/
http://store.steampowered.com/app/252490/

这里是我使用的代码：

$url = 'http://store.steampowered.com/app/35700/';
$html = file_get_contents($url);
$dom = new domDocument;
$dom->loadHTML($html);
$dom->preserveWhiteSpace = false;
$images = $dom->getElementsByTagName('img');
foreach ($images as $image) {
  echo $image->getAttribute('src');
}

它适用于第一个商店页面，但第二个重定向到年龄验证页，并且脚本从那里返回图像。我需要一种方法让脚本通过年龄验证并访问实际的商店页面。

It works fine with the first store page, but the second one redirects to an age verification page, and the script returns the images from there. I need a way for the script to get past the age verification and access the actual store page.

任何帮助都会感激。

编辑：

这是提交年龄表时传递给服务器的信息：

This is what's passed to the server when the age form is submitted:

snr=1_agecheck_agecheck__age-gate&ageDay=1&ageMonth=January&ageYear=1979

及其设置的cookie：

and the cookies that it sets:

lastagecheckage=1-January-1979; expires=Tue, 03 Mar 2015 19:53:42 GMT; path=/; domain=store.steampowered.com
birthtime=662716801; path=/; domain=store.steampowered.com

Edit2：

我可以使用cURL设置Cookie，但它们不会被DOM加载HTML使用，因此我获得的结果与之前相同。我需要一个方法loadHTML使用我设置的特定的cookie，或另一种方法抓住图像URL，将使用由cURL设置的cookie。

I can set the cookies using cURL but they aren't used by DOM loadHTML, so I get the same result as before. I need either a way for loadHTML to use specific cookies that I set, or another method of grabbing the image URLs that will use cookies set by cURL.

推荐答案

解决了！这里是工作代码：

Solved! Here's the working code:

$url = 'http://store.steampowered.com/app/35700/';

$ch = curl_init();

curl_setopt($ch, CURLOPT_COOKIE, "birthtime=28801; path=/; domain=store.steampowered.com");
curl_setopt($ch, CURLOPT_TIMEOUT, 5); 
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$result = curl_exec($ch);

$dom = new domDocument;
libxml_use_internal_errors(true);
$dom->loadHTML($result);
$dom->preserveWhiteSpace = false;

$images = $dom->getElementsByTagName('img');
foreach ($images as $image) {
  $src = $image->getAttribute('src');
  echo $src.PHP_EOL;
}

curl_close($ch);

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