Question

我正在编写一个脚本来从受密码保护的成员区域下载文件。我现在通过使用curl调用登录然后下载它。但我想解决的问题是我想要一个脚本登录并保存cookie然后另一个脚本使用cookie来下载所需的文件。现在我不确定这是否可行。

这是我的工作代码：

$cookie_file_path = "downloads/cookie.txt";
$fp = fopen($cookie_file_path, "w");
fclose($fp);

$ch = curl_init();
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_NOBODY, false);
curl_setopt($ch, CURLOPT_URL, $loginUrl);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);

curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file_path);

curl_setopt($ch, CURLOPT_USERAGENT,
    "Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.12) Gecko/20050915 Firefox/1.0.7");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);

curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $loginPostInfo);
curl_exec($ch);

// harddcode some known data
$downloadSize = 244626770;

$chuckSize = 1024*2048;        
$filePath = "downloads/file.avi";

$file = fopen($filePath, "w");

$downloaded = 0;
$startTime = microtime(true);

while ($downloaded < $downloadSize) {            
    // DOWNLOAD
    curl_setopt($ch, CURLOPT_RANGE, $downloaded."-".($downloaded + $chuckSize - 1));

    curl_setopt($ch, CURLOPT_URL, $downloadUrl);
    $result = curl_exec($ch);

    $nowTime = microtime(true);
    fwrite($file, $result);

    echo "\n\nprogress: ".$downloaded."/".$downloadSize." - %".(round($downloaded / $downloadSize, 4) * 100);

    $downloaded += $chuckSize;

    // calculate kbps
    $totalTime = $nowTime - $startTime;            
    $kbps = $downloaded / $totalTime;

    echo "\ndownloaded: ".$downloaded." bytes";
    echo "\ntime: ".round($totalTime, 2);
    echo "\nkbps: ".(round($kbps / 1024, 2));
}

fclose($file);
curl_close($ch);

那么可以在登录curl_exec之后关闭curl然后再次打开curl调用以使用我在登录部分保存的cookie下载文件吗？

Answer 1

是的，这是可能的。

CURLOPT_COOKIEJAR是Cookie的写入路径，而CURLOPT_COOKIEFILE是Cookie的读取路径。如果您为CURLOPT_COOKIEFILE提供与CURLOPT_COOKIEJAR相同的路径，则cURL会将Cookie保留在请求中：

curl_setopt($ch, CURLOPT_COOKIEJAR,  $cookie_file_path);
curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file_path);

Answer 2

On ImpressPages我这样做了：

//initial request with login data

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://www.example.com/login.php');
curl_setopt($ch, CURLOPT_USERAGENT,'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/32.0.1700.107 Chrome/32.0.1700.107 Safari/537.36');
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, "username=XXXXX&password=XXXXX");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_COOKIESESSION, true);
curl_setopt($ch, CURLOPT_COOKIEJAR, 'cookie-name');  //could be empty, but cause problems on some hosts
curl_setopt($ch, CURLOPT_COOKIEFILE, '/var/www/ip4.x/file/tmp');  //could be empty, but cause problems on some hosts
$answer = curl_exec($ch);
if (curl_error($ch)) {
    echo curl_error($ch);
}

//another request preserving the session

curl_setopt($ch, CURLOPT_URL, 'http://www.example.com/profile');
curl_setopt($ch, CURLOPT_POST, false);
curl_setopt($ch, CURLOPT_POSTFIELDS, "");
$answer = curl_exec($ch);
if (curl_error($ch)) {
    echo curl_error($ch);
}

Answer 3

是的，请循环使用CURLOPT_COOKIEJAR和CURLOPT_COOKIEFILE。我看到你已经使用了CURLOPT_COOKIEJAR，所以你应该只潜入* _COOKIEJAR。

cUrl登录然后cUrl下载

3 个答案: