TYPO3 Core

Hello there,

I have the problem that the TER update fails. We figured out that the mirrors.xml.gz file is the problem and that it includes a HTTP Header which looks like this:

<snip>
   HTTP/1.1 200 OK
   Date: Thu, 25 Feb 2016 09:25:51 GMT
   Server: Apache
   Last-Modified: Mon, 25 Jan 2016 19:40:36 GMT
   ETag: "fa5de6-109-52a2dbe316ea2" 
   Accept-Ranges: bytes
   Content-Length: 265
   Vary: Accept-Encoding
   Connection: close
   Content-Type: application/x-gzip
   BINARY DATA...
   </snip>

After a lot of testing we could solve the problem by editting this file: typo3_src-7.6.4/typo3/sysext/core/Classes/Utility/GeneralUtility.php.
So we changed the following line, that it won't include the header:

//      curl_setopt($ch, CURLOPT_HEADER, !$followLocationSucceeded || $includeHeader ? 1 : 0);
            curl_setopt($ch, CURLOPT_HEADER, 0);

Is this a known problem and is there a better solution than manually editing files?

Best regards,
Paul

These are our system information:

OS: Ubuntu 14.04.4 LTS
Webserver: Apache/2.4.7
PHP: 5.5.9-1ubuntu4.14
PHP-CURL: 5.5.9+dfsg-1ubuntu4.14
Proxy: Squid 3.1.19-1ubuntu3.12.04.4
Typo3: 7.6.4

settings php.ini:

disable_functions =     pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,
                        pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,
                        pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,
                        pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,
                        pcntl_exec,pcntl_getpriority,pcntl_setpriority

open_basedir =  "/var/www:/tmp:/usr/share/lib/php:/usr/share/php:/usr/share/phpmyadmin:
                        /usr/share/pear:/var/lib/php5:/var/run/php5:/etc/php5:/etc/pear:
                        /usr/bin/pear:/usr/bin/peardev:/var/lib/phpmyadmin:/etc/phpmyadmin"

settings LocalConfiguration.php:

'HTTP' => [
        'adapter' => 'curl',
        'proxy_host' => '1.2.3.4',
        'proxy_port' => '3128',
      ],
        'curlProxyServer' => 'http://1.2.3.4:3128/',
        'curlUse' => '1',