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使用curl_setopt抓取百度,百度图片防盗有什么好的办法?

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Release: 2016-06-20 12:55:59
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$url = "http://www.baidu.com/s?wd=csdn";$header = array (        'User-Agent: Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36');$ch = curl_init ();$timeout = 10; curl_setopt ( $ch, CURLOPT_URL, $url );curl_setopt ( $ch, CURLOPT_HTTPHEADER, $header );curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, 1 );curl_setopt ( $ch, CURLOPT_CONNECTTIMEOUT,$timeout);$content = curl_exec ( $ch );if ($content == FALSE) {    echo "error:" . curl_error ( $ch );}curl_close ( $ch );echo $content;
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回复讨论(解决方案)

伪造referer url

1楼已经说的很清楚了。

伪造referer url


curl_setopt ( $ch, CURLOPT_REFERER, 'http://www.baidu.com/');
不行。

你要明白,图片展示的时候,不是php的curl请求了,而是浏览器发的请求。浏览器发的请求,你当前url是什么域名比如www.devtest.com,那么图片的refer就是什么。所以肯定看不到图片。

有一种做法就是,所有百度的图片,你替换成访问自己写的一个php比如url/image.php?baidu_url=******,*****就是真实的图片地址,然后你的image.php在调用curl并加上refer去抓取。

http://i7.baidu.com/it/u=1366412274,1504179524&fm=96&s=E840F41219BFE0C844FC8DCA0300F0B3
你是不能用代码直接访问到的(403错)
但你带上访问 http://www.baidu.com/s?wd=csdn 时得到的 cookie 就可以用代码访问到了

谢谢大家,已经解决啦

header('Content-type:image/jpeg');$ch = curl_init ();$url = "http://t12.baidu.com/it/u=1464136568,2122787600&fm=58&s=3FF6E816C0B4FF90237DC7C40200F024";curl_setopt ( $ch, CURLOPT_URL, $url );curl_setopt ( $ch, CURLOPT_REFERER, 'http://www.baidu.com'); $content = curl_exec ( $ch );curl_close ( $ch );echo $content;
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