检查标题:它只能通过 https 访问:
$ curl --dump-header - http://pinterest.com/
HTTP/1.1 302 FOUND
Accept-Ranges: bytes
Age: 0
Content-Type: text/html; charset=utf-8
Date: Thu, 18 Jul 2013 19:25:49 GMT
Etag: "d41d8cd98f00b204e9800998ecf8427e"
Location: https://pinterest.com/
Pinterest-Breed: CORGI
Pinterest-Generated-By: ngapp-b7f64694
Pinterest-Version: a8eef3c
Server: nginx/0.8.54
Set-Cookie: csrftoken=A2VQZGarr509JKxrJxiuW2MbrXNdHlUH; Domain=.pinterest.com; expires=Thu, 17-Jul-2014 19:25:49 GMT; Max-Age=31449600; Path=/
Set-Cookie: _pinterest_sess="eJwz84isyvfJcilP1S4szHY20A6MKitJKwwPdi+2tY8vycxNtfUN8TX2c3E19gsJNfAPtLVVK04tLs5MsfXMcjTxq/KsAGJj3/CgHL+QoGzfrLCMSKNAIz93X+PIrHQTIF0eFe6X4ZluawsAh3UjNA=="; Domain=.pinterest.com; expires=Sun, 13-Jul-2014 19:25:49 GMT; Max-Age=31103999; Path=/
Vary: Cookie
Via: 1.1 varnish
X-Varnish: 1991078486
Content-Length: 0
Connection: keep-alive
如果您使用该-L
选项,您将获得该页面:
$ curl -L http://pinterest.com/
<!DOCTYPE html>
<!--[if IE 7 ]><html lang="en" class="ie7 ielt9 ielt10 en"><![endif]-->
<!--[if IE 8 ]><html lang="en" class="ie8 ielt9 ielt10 en"><![endif]-->
<!--[if IE 9 ]><html lang="en" class="ie9 ielt10 en"><![endif]-->
<!--[if (gt IE 9)|!(IE)]><!--><html lang="en" class=" en"><!--<![endif]-->
<head>
<script>
[snip]
在此链接中,它是如何使用 PHP 完成的:
[多年后...] 还有,-V
是--version
,不是--verbose
,这是小写的-v
。调用curl -V
会导致它显示版本并忽略任何 args,因此无论如何您永远不会以这种方式获取页面。