Question

如何在Openshift上禁用gzip压缩（针对特定请求）？更具体：对于由php提供的文件下载 - 即fpassthrough。

我尝试了几件事：

ini_set('zlib.output_compression', 'Off');
apache_setenv('no-gzip', '1');和apache_setenv('dont-vary', '1');
SetEnv no-gzip dont-vary

通过curl -v -H 'Accept-Encoding: gzip,deflate' http://downloadtest-***.rhcloud.com进行的简单测试得出：

> GET http://downloadtest-***.rhcloud.com/ HTTP/1.1
> User-Agent: curl/7.41.0
> Host: downloadtest-***.rhcloud.com
> Accept: */*
> Proxy-Connection: Keep-Alive
> Accept-Encoding: gzip,deflate
>
< HTTP/1.1 200 OK
< Date: Fri, 22 May 2015 12:47:41 GMT
< Server: Apache/2.2.15 (Red Hat)
< Content-Disposition: attachment; filename="myfile.tmp"
< Content-Lenght: 54
< Content-Type: application/octet-stream
< Vary: Accept-Encoding
< Content-Length: 77
< Proxy-Connection: Keep-Alive
< Connection: Keep-Alive
< Content-Encoding: gzip

背景：我需要禁用gzip压缩，因为它会破坏已经压缩过的文件 - 请参阅例如https://magento.stackexchange.com/questions/3528/downloadable-zip-files-are-corrupt或http://www.heath-whyte.info/david/computers/corrupted-zip-file-downloads-with-php。

完整的测试代码：

的index.php：

$file = __DIR__ . '/test.txt.gz'; //This file is acutally 54 bytes

ini_set('zlib.output_compression', 'Off');

apache_setenv('no-gzip', '1');
apache_setenv('dont-vary', '1');

header('Content-type: application/octet-stream');
header('Content-Disposition: attachment; filename="myfile.tmp"');
header('Content-Lenght: '.filesize($file));

if(!file_exists($file)) {
    echo "file does not exist!\n";
    exit(0);
}
$handle = fopen($file, 'rb');
fpassthru($handle);
fclose($handle);
exit(0);

htaccess的：

RewriteEngine On
SetEnv no-gzip dont-vary

Answer 1

压缩由OpenShift proxy执行，因此服务器的配置对其没有影响。我还没有找到任何禁用压缩的方法。例如，我尝试使用Cache-Control: no-transform响应标头，并didn't work。

在Openshift上禁用gzip压缩（php cartridge）

1 个答案: