On Wed, Apr 24, 2024 at 4:58 PM Dave Wreski
<dwre...@guardiandigital.com.invalid> wrote:
> Hi,
>
> We have a situation where we need to strip a query string from all URLs
>>> except ones matching a particular pattern. However, when I try the rules
>>> below, it redirects to the homepage for some reason.
>>>
>>> In this example, I'd like to strip off the query string from all URLs
>>> except those involving /resources/blog:
>>>
>>> RewriteCond %{REQUEST_URI} !/resources/blog
>>> RewriteCond %{QUERY_STRING} ^start=
>>> RewriteRule (.*) https://guardiandigital.com$1 [L,QSD]
>>>
>>> What am I missing?
>>>
>>> Thanks,
>>> Dave
>>>
>>>
>>>
>> To remove the query string, see the QSD flag, or append a ? at the end of
>> the target.
>>
>> That's what I'm doing, I think. What am I missing? It just redirects to
>> the homepage somehow.
>>
>> Shouldn't I be able to stack RewriteConds in this way, followed by a
>> RewriteRule?
>>
>> I have no idea what could be wrong.
>>
>
> Test with curl, and see if you get redirected after the fact.
>
> I've enabled trace3 to try and figure this out. But line 8 says
> "discarding query string, no parse from substitution" and I don't know why
> or what really that means.
>
> 1 [Wed Apr 24 15:19:36.440500 2024] [rewrite:trace2] [pid 748062:tid
> 748212] mod_rewrite.c(493): [client 62.111.193.42:0] 62.111.193.42 - - [
> guardiandigital.com/sid#55743f0bbb58][rid#7f9cd4016af0/initial
> <http://guardiandigital.com/sid#55743f0bbb58][rid%237f9cd4016af0/initial>]
> init rewrite engine with requested uri /resources/blog
>
> 2 [Wed Apr 24 15:19:36.445306 2024] [rewrite:trace1] [pid 748062:tid
> 748212] mod_rewrite.c(493): [client 62.111.193.42:0] 62.111.193.42 - - [
> guardiandigital.com/sid#55743f0bbb58][rid#7f9cd4016af0/initial
> <http://guardiandigital.com/sid#55743f0bbb58][rid%237f9cd4016af0/initial>]
> pass through /resources/blog
>
> 3 [Wed Apr 24 15:19:36.449369 2024] [rewrite:trace3] [pid 748062:tid
> 748212] mod_rewrite.c(493): [client 62.111.193.42:0] 62.111.193.42 - - [
> guardiandigital.com/sid#55743f0bbb58][rid#7f9cd4016af0/initial
> <http://guardiandigital.com/sid#55743f0bbb58][rid%237f9cd4016af0/initial>]
> [perdir /home/docroot/] applying pattern '.*' to uri 'resources/blog'
>
> 4 [Wed Apr 24 15:19:36.449413 2024] [rewrite:trace2] [pid 748062:tid
> 748212] mod_rewrite.c(493): [client 62.111.193.42:0] 62.111.193.42 - - [
> guardiandigital.com/sid#55743f0bbb58][rid#7f9cd4016af0/initial
> <http://guardiandigital.com/sid#55743f0bbb58][rid%237f9cd4016af0/initial>]
> [perdir /home/docroot/] rewrite 'resources/blog' -> 'index.php'
>
> 5 [Wed Apr 24 15:19:36.449453 2024] [rewrite:trace1] [pid 748062:tid
> 748212] mod_rewrite.c(493): [client 62.111.193.42:0] 62.111.193.42 - - [
> guardiandigital.com/sid#55743f0bbb58][rid#7f9cd4016af0/initial
> <http://guardiandigital.com/sid#55743f0bbb58][rid%237f9cd4016af0/initial>]
> [perdir /home/docroot/] internal redirect with /index.php [INTERNAL
> REDIRECT]
>
> 6 [Wed Apr 24 15:19:36.449830 2024] [rewrite:trace3] [pid 748062:tid
> 748212] mod_rewrite.c(493): [client 62.111.193.42:0] 62.111.193.42 - - [
> guardiandigital.com/sid#55743f0bbb58][rid#7f9ccc0e6000/initial/redir#1
> <http://guardiandigital.com/sid#55743f0bbb58][rid%237f9ccc0e6000/initial/redir%231>]
> applying pattern '(.*)' to uri '/index.php'
>
> 7 [Wed Apr 24 15:19:36.449848 2024] [rewrite:trace2] [pid 748062:tid
> 748212] mod_rewrite.c(493): [client 62.111.193.42:0] 62.111.193.42 - - [
> guardiandigital.com/sid#55743f0bbb58][rid#7f9ccc0e6000/initial/redir#1
> <http://guardiandigital.com/sid#55743f0bbb58][rid%237f9ccc0e6000/initial/redir%231>]
> rewrite '/index.php' -> 'https://guardiandigital.com/index.php'
>
> 8 [Wed Apr 24 15:19:36.449857 2024] [rewrite:trace2] [pid 748062:tid
> 748212] mod_rewrite.c(493): [client 62.111.193.42:0] 62.111.193.42 - - [
> guardiandigital.com/sid#55743f0bbb58][rid#7f9ccc0e6000/initial/redir#1
> <http://guardiandigital.com/sid#55743f0bbb58][rid%237f9ccc0e6000/initial/redir%231>]
> discarding query string, no parse from substitution
>
> 9 [Wed Apr 24 15:19:36.449864 2024] [rewrite:trace2] [pid 748062:tid
> 748212] mod_rewrite.c(493): [client 62.111.193.42:0] 62.111.193.42 - - [
> guardiandigital.com/sid#55743f0bbb58][rid#7f9ccc0e6000/initial/redir#1
> <http://guardiandigital.com/sid#55743f0bbb58][rid%237f9ccc0e6000/initial/redir%231>]
> explicitly forcing redirect with https://guardiandigital.com/index.php
>
> 10 [Wed Apr 24 15:19:36.449871 2024] [rewrite:trace1] [pid 748062:tid
> 748212] mod_rewrite.c(493): [client 62.111.193.42:0] 62.111.193.42 - - [
> guardiandigital.com/sid#55743f0bbb58][rid#7f9ccc0e6000/initial/redir#1
> <http://guardiandigital.com/sid#55743f0bbb58][rid%237f9ccc0e6000/initial/redir%231>]
> escaping https://guardiandigital.com/index.php for redirect
>
> 11 [Wed Apr 24 15:19:36.449880 2024] [rewrite:trace1] [pid 748062:tid
> 748212] mod_rewrite.c(493): [client 62.111.193.42:0] 62.111.193.42 - - [
> guardiandigital.com/sid#55743f0bbb58][rid#7f9ccc0e6000/initial/redir#1
> <http://guardiandigital.com/sid#55743f0bbb58][rid%237f9ccc0e6000/initial/redir%231>]
> redirect to https://guardiandigital.com/index.php [REDIRECT/301]
>
> 12 62.111.193.42 - - [24/Apr/2024:15:19:36 -0400] "GET
> /resources/blog?start=48 HTTP/1.1" 301 245 r:"-" "Wget/1.21.4"
> X:"SAMEORIGIN" 0/9647 1183/6254/245 H:HTTP/1.1 U:/resources/blog gd443 s:301
>
> ... more checks against our rewrites ...
>
> 13 62.111.193.42 - - [24/Apr/2024:15:19:36 -0400] "GET /index.php
> HTTP/1.1" 200 33921 r:"-" "Wget/1.21.4" X:"SAMEORIGIN" 0/129431
> 573/35481/33921 H:HTTP/1.1 U:/index.php gd443 s:200
>
>
>
>
>
>
It did exactly what you asked, yes.
Further, I asked you to use curl to see if you get redirected from
https://guardiandigital.com/index.php to another URL, but you seem to have
ignored that part of the answer.
