PHP curl:curl_setopt（）fopencookie失败

我正在尝试编写一个脚本，该脚本将缓存图像，但遇到以下错误消息：

Nov  4 12:55:19 centos httpd: PHP Fatal error:  curl_setopt() [<a href='function.curl-setopt'>function.curl-setopt</a>]: fopencookie failed in /var/www/html/proxy3.php on line 6

有人知道这里出了什么问题吗

我已经尝试过将/dev/null和/或/tmp/cookies.txt设置/不设置CURLOPT_-COOKIEJAR和CURLOPT_-COOKIEFILE。我试过sudotouch/tmp/cookies.txt；sudo chown apache.apache/tmp/cookies.txt。这根本不管用

实际上我的脚本中不需要cookies，我很乐意在curl中禁用它们

我特意使用了fopen（…，“xb”），因此只有一个脚本实例会在我的真实脚本中写入缓存文件

我将CentOS 5.5与php-5.1.6-27.el5和未修改的php.ini一起使用

谢谢,， 亚历克斯

另外，这是我的真实图像代理脚本，它失败了，并显示相同的fopencookie错误消息。我不能使用fopen（..，'wb'）在那里，我必须使用fopen（..，'xb'）：

<?php

define('MIN_SIZE', 1024);
define('MAX_SIZE', 1024 * 1024);
define('CACHE_DIR', '/var/www/cached_avatars/');

$img = urldecode($_GET['img']);
# URL sanity checks omitted here for brevity
$cached = CACHE_DIR . md5($img);
$writefh = @fopen($cached, 'xb');
# the file is not cached yet, download it!
if ($writefh) {
        $ch = curl_init($img);
        curl_setopt($ch, CURLOPT_FILE, $writefh);
        curl_setopt($ch, CURLOPT_HEADER, FALSE);
        #curl_setopt($ch, CURLOPT_REFERER, $matches[1]);
        curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
        #curl_setopt($ch, CURLOPT_COOKIEJAR, '/dev/null');
        #curl_setopt($ch, CURLOPT_COOKIEFILE, '/dev/null');
        #curl_setopt($ch, CURLOPT_COOKIEJAR, CACHE_DIR . 'cookies.txt');
        #curl_setopt($ch, CURLOPT_COOKIEFILE, CACHE_DIR . 'cookies.txt');
        curl_exec($ch);

        $error    = curl_errno($ch);
        $length   = curl_getinfo($ch, CURLINFO_SIZE_DOWNLOAD);
        $mime     = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
        $is_image = ($mime != NULL &&
                     (stripos($mime, 'image/gif') !== FALSE ||
                      stripos($mime, 'image/png') !== FALSE ||
                      stripos($mime, 'image/jpg') !== FALSE ||
                      stripos($mime, 'image/jpeg') !== FALSE));

        curl_close($ch);
        fclose($writefh);

        if ($error || $length < MIN_SIZE || $length > MAX_SIZE || !$is_image) {
                unlink($cached);
                exit('Download failed: ' . $img);
        }
} else {
        $finfo  = finfo_open(FILEINFO_MIME);
        $mime   = finfo_file($finfo, $cached);
        $length = filesize($cached);
        finfo_close($finfo);
}

$readfh = fopen($cached, 'rb');
if ($readfh) {
        header('Content-Type: ' . $mime);
        header('Content-Length: ' . $length);

        while (!feof($readfh)) {
                $buf = fread($readfh, 8192);
                echo $buf;
        }

        fclose($readfh);

}

?>

---

我认为问题在于

x

模式

fopen

与

x

一起使用时，如果文件已存在，则模式返回

false

。在您的情况下，该文件已经存在，

$fh

将为

false

，当它被传递到

curl\u setopt

时，您会收到此错误

---

若要解决此问题，请尝试将

xb

更改为

wb

如果您只需要一个脚本同时访问文件，则应使用

cb

选项+

flock

：

$fh = fopen('/tmp/yahoo.html', 'cb');
if (flock($fh, LOCK_EX | LOCK_NB) {
    //ftruncate($fh, 0); -- truncate the file if that's what you want
    //continue as usual
}
else {
    //could not obtain lock (without waiting)
}

---

感谢所有的回复，我最终得到了这个用于缓存图像的PHP/cURL脚本（Flash应用程序需要它来绕过丢失的crossdomain.xml）——似乎可以与CentOS 5 Linux和PHP-5.1.6-27.el5配合使用：

<?php

define('MIN_SIZE', 512);
define('MAX_SIZE', 1024 * 1024);
define('CACHE_DIR', '/var/www/cached_avatars/');

$img = urldecode($_GET['img']);
# img sanity checks omitted here
$cached = CACHE_DIR . md5($img);

if (is_readable($cached)) {
        $finfo  = finfo_open(FILEINFO_MIME);
        $mime   = finfo_file($finfo, $cached);
        $length = filesize($cached);
        finfo_close($finfo);
} else {
        $writefh = fopen($cached, 'wb');
        if ($writefh) {
                flock($writefh, LOCK_EX);
                $ch = curl_init($img);
                curl_setopt($ch, CURLOPT_FILE, $writefh);
                curl_setopt($ch, CURLOPT_HEADER, FALSE);
                curl_setopt($ch, CURLOPT_REFERER, $matches[1]);
                curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
                curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
                curl_setopt($ch, CURLOPT_AUTOREFERER, TRUE);
                curl_exec($ch);

                $error    = curl_errno($ch);
                $length   = curl_getinfo($ch, CURLINFO_SIZE_DOWNLOAD);
                $mime     = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
                $is_image = ($mime != NULL &&
                             (stripos($mime, 'image/gif') !== FALSE ||
                              stripos($mime, 'image/png') !== FALSE ||
                              stripos($mime, 'image/jpg') !== FALSE ||
                              stripos($mime, 'image/jpeg') !== FALSE));

                curl_close($ch);
                fclose($writefh);
                if ($error || $length < MIN_SIZE || $length > MAX_SIZE || !$is_image) {
                        unlink($cached);
                        exit('Download failed: ' . $img);
                }
        }
}

$readfh = fopen($cached, 'rb');
if ($readfh) {
        header('Content-Type: ' . $mime);
        header('Content-Length: ' . $length);

        flock($readfh, LOCK_SH);

        while (!feof($readfh)) {
                $buf = fread($readfh, 8192);
                echo $buf;
        }

        fclose($readfh);
}

?>

否，在第一次运行时，/tmp/yahoo.html不存在。我已经重写了我的代码，使它更清晰。它仍然失败（误导？）fopencookie错误消息。fopen（..，“xb”）对我来说是更好的选择，因为我只想下载一次图像（请参阅问题底部的真实脚本）。有了“cb”，它将被一次又一次地下载。另外，我认为当您使用“cb”时，不需要flock（）。但无论如何，谢谢你的回答。我还在@Alex上提交了一个PHP错误。我已经修复了这个错误，它将出现在PHP5.3.4中，将于12月发布。我还没有测试，但我认为“cb”与“xb”会有相同的问题，即使用“cb”打开的文件也会出现fopencookie错误。我真的看不到有什么工作在这里，除了使用一个单独的带有“xb”的文件作为锁，如果fopen成功，请使用“wb”打开真正的文件。谢谢，我会坚持使用fopen（…，“wb”）和flock（）这么久。

$fh = fopen('/tmp/yahoo.html', 'cb');
if (flock($fh, LOCK_EX | LOCK_NB) {
    //ftruncate($fh, 0); -- truncate the file if that's what you want
    //continue as usual
}
else {
    //could not obtain lock (without waiting)
}

<?php

define('MIN_SIZE', 512);
define('MAX_SIZE', 1024 * 1024);
define('CACHE_DIR', '/var/www/cached_avatars/');

$img = urldecode($_GET['img']);
# img sanity checks omitted here
$cached = CACHE_DIR . md5($img);

if (is_readable($cached)) {
        $finfo  = finfo_open(FILEINFO_MIME);
        $mime   = finfo_file($finfo, $cached);
        $length = filesize($cached);
        finfo_close($finfo);
} else {
        $writefh = fopen($cached, 'wb');
        if ($writefh) {
                flock($writefh, LOCK_EX);
                $ch = curl_init($img);
                curl_setopt($ch, CURLOPT_FILE, $writefh);
                curl_setopt($ch, CURLOPT_HEADER, FALSE);
                curl_setopt($ch, CURLOPT_REFERER, $matches[1]);
                curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
                curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
                curl_setopt($ch, CURLOPT_AUTOREFERER, TRUE);
                curl_exec($ch);

                $error    = curl_errno($ch);
                $length   = curl_getinfo($ch, CURLINFO_SIZE_DOWNLOAD);
                $mime     = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
                $is_image = ($mime != NULL &&
                             (stripos($mime, 'image/gif') !== FALSE ||
                              stripos($mime, 'image/png') !== FALSE ||
                              stripos($mime, 'image/jpg') !== FALSE ||
                              stripos($mime, 'image/jpeg') !== FALSE));

                curl_close($ch);
                fclose($writefh);
                if ($error || $length < MIN_SIZE || $length > MAX_SIZE || !$is_image) {
                        unlink($cached);
                        exit('Download failed: ' . $img);
                }
        }
}

$readfh = fopen($cached, 'rb');
if ($readfh) {
        header('Content-Type: ' . $mime);
        header('Content-Length: ' . $length);

        flock($readfh, LOCK_SH);

        while (!feof($readfh)) {
                $buf = fread($readfh, 8192);
                echo $buf;
        }

        fclose($readfh);
}

?>