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From William A Rowe Jr <wr...@rowe-clan.net>
Subject Re: Content-Type / AddOutputFilterByType DEFLATE text/html
Date Tue, 08 Aug 2017 16:07:07 GMT
This current behavior still seems wrong in httpd. A content (as opposed
perhaps to transfer) should not vary, in fact cannot vary if an etag is
presented.

I suspect that the deflate filter looks to see if there is a benefit to
compression, and cannot do so until it has a body. If it is going to do
that, I suspect it must use a transfer encoding. Otherwise the deflation of
content shouldn't vary, and the header should be toggled even when there is
no body.


On Aug 7, 2017 04:43, "Reindl Harald" <h.reindl@thelounge.net> wrote:

> OK, the reason are the HEAD-Requests triggered by curl_setopt($curl,
> CURLOPT_NOBODY, 1); so the bug is ignoring that in case of
> "/static.htm?count=250_150209658" and sending in fact a body back while
> for the 3 other test urls the response is HEAD as requested and the curl
> code is identical
>
>  $curl = curl_init();
>  curl_setopt($curl, CURLOPT_NOBODY, 1);
>  curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
>  curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 5);
>  curl_setopt($curl, CURLOPT_USERAGENT, 'Mozilla/5.0 (X11; Fedora; Linux
> x86_64; rv:55.0) Gecko/20100101 Firefox/55.0');
>  curl_setopt($curl, CURLOPT_HEADER, 1);
>  curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, 0);
>  curl_setopt($curl, CURLOPT_URL, $url);
>  curl_setopt($curl, CURLOPT_HTTPHEADER, $curl_header);
>
> Am 07.08.2017 um 11:12 schrieb Reindl Harald:
>
>> Hi
>>
>> AddOutputFilterByType DEFLATE text/html
>>
>> is this a bug or somehow expected behavior that in case the
>> "Content-Type" header also contains a charset mod_defalte don't work as
>> expected which means in case of curl requests only static files are gzip
>> compressed while PHP responses are missing "Content-Encoding: gzip" - that
>> this don't happen in case of Firefox as client makes it even more strange
>>
>> identical result for "Content-Type: text/html; charset=UTF-8" in case
>> "default_charset" is not set in php.ini
>>
>> the last line of each block is the PHP array for curl_setopt($curl,
>> CURLOPT_HTTPHEADER, $curl_header);
>>
>> NO GZIP
>> http://corecms/index.php?count=250_1502096587
>> HTTP/1.1 200 OK
>> Date: Mon, 07 Aug 2017 09:03:08 GMT
>> X-DNS-Prefetch-Control: off
>> X-Content-Type-Options: nosniff
>> X-Response-Time: D=1744 us
>> Expires: Mon, 26 Jul 1997 05:00:00 GMT
>> Cache-Control: no-cache
>> ETag: 7d820de3763d0e6c22ccbfe846ab1c31
>> Vary: User-Agent
>> Content-Type: text/html; charset=ISO-8859-1
>> a:2:{i:0;s:58:"Cookie: LOUNGE_ID=pivked76ocg1n9750n91
>> d3dtnqqpqhpmqci63pvo";i:1;s:30:"Accept-Encoding: gzip, deflate";}
>>
>> NO GZIP
>> http://corecms/
>> HTTP/1.1 200 OK
>> Date: Mon, 07 Aug 2017 09:03:08 GMT
>> X-DNS-Prefetch-Control: off
>> X-Content-Type-Options: nosniff
>> X-Response-Time: D=400 us
>> Cache-Control: max-age=120
>> Expires: Mon, 07 Aug 2017 09:05:08 GMT
>> Vary: User-Agent
>> Content-Type: text/html; charset=ISO-8859-1
>> a:2:{i:0;s:58:"Cookie: LOUNGE_ID=pivked76ocg1n9750n91
>> d3dtnqqpqhpmqci63pvo";i:1;s:30:"Accept-Encoding: gzip, deflate";}
>>
>> GZIP OK
>> http://corecms/static.htm?count=250_1502096587
>> HTTP/1.1 200 OK
>> Date: Mon, 07 Aug 2017 09:03:08 GMT
>> X-DNS-Prefetch-Control: off
>> X-Content-Type-Options: nosniff
>> X-Response-Time: D=297 us
>> Last-Modified: Sun, 06 Aug 2017 17:49:54 GMT
>> ETag: "ec1-556195b938c8f-gzip"
>> Accept-Ranges: bytes
>> Cache-Control: max-age=120
>> Expires: Mon, 07 Aug 2017 09:05:08 GMT
>> Content-Encoding: gzip
>> Vary: Accept-Encoding
>> Content-Length: 890
>> Content-Type: text/html
>> a:2:{i:0;s:58:"Cookie: LOUNGE_ID=pivked76ocg1n9750n91
>> d3dtnqqpqhpmqci63pvo";i:1;s:30:"Accept-Encoding: gzip, deflate";}
>>
>> NO GZIP
>> http://corecms/static.php?count=250_1502096587
>> HTTP/1.1 200 OK
>> Date: Mon, 07 Aug 2017 09:03:08 GMT
>> X-DNS-Prefetch-Control: off
>> X-Content-Type-Options: nosniff
>> X-Response-Time: D=280 us
>> Cache-Control: max-age=120
>> Expires: Mon, 07 Aug 2017 09:05:08 GMT
>> Vary: User-Agent
>> Content-Type: text/html; charset=ISO-8859-1
>> a:2:{i:0;s:58:"Cookie: LOUNGE_ID=pivked76ocg1n9750n91
>> d3dtnqqpqhpmqci63pvo";i:1;s:30:"Accept-Encoding: gzip, deflate";}
>>
>

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