301 Redirects with mod_rewrite - .htaccess

I'm working with mod_rewrite under .htaccess, and I'm trying to redirect (R=301) an URL like this :
http://domain/index.php?folder=AB_CD
to an URL like this
http://domain/AB/CD/
How can I write the rule please ?

Try the following code in root/.htaccess :
RewriteEngine On
RewriteCond %{QUERY_STRING} ^folder=([^_]+)_([^&]+)$ [NC]
RewriteRule ^index\.php$ http://domain.com/%1/%2/? [NC,L,R]
Explaination :
RewriteCond %{QUERY_STRING} ^folder=([^_]+)_([^&]+)$ [NC]
Checks to ensure that the url (index.php) has query strings with specific key and value, ( folder=foo_bar) acording to the regex pattern, if the url has valid query strings then the rule is processed
RewriteRule ^index\.php$ http://domain.com/%1/%2/? [NC,L,R]
index.php?query_strings gets redirected to /query/strings, if the condition is met.
Empty question mark ? at the end of the Rewrite target is important as it discards the orignal query strings, without it /index.php?folder=foo_bar redirects to /foo/bar/?folder=foo_bar appending the old query strings.
(Hope, this helps!)

Related

htaccess redirect with query string not working

enter code hereI have a WordPress website.
I have URLs for affiliates that look like this:
https://example.com/folder/?ref=23432
https://example.com/folder/?ref=13442
etc.
I would like to redirect any URL that ends in ?ref= to another domain.
For example, https://example.com/folder/?ref= should redirect to https://example.org/product/
How can I do this? I appreciate your time.
I tried
Redirect 301 example.com/folder/?ref https://example.org/product/
Thank you #MrWhite. I tried the following with no success.
RewriteEngine On
RewriteCond %{QUERY_STRING} (^|&)ref=
RewriteRule ^example.com https://www.example.org/product/$0 [R=302,L]
RewriteRule ^example.com https://www.example.org/product/$0 [R=302,L]
The RewriteRule directive matches the URL-path only (less the slash prefix). So this should be matching against folder/ (as per your example), not the hostname.
And the $0 backreference in the substitution string is not required here. So this should simply be:
:
RewriteRule ^folder/$ https://www.example.org/product/ [R=302,L]
If you do need to check the requested hostname (ie. example.com) - if example.com and example.org point to the same server - then you need a separate condition (RewriteCond directive). For example, the complete rule would then become:
RewriteCond %{HTTP_HOST} ^(www\.)?example\.com [NC]
RewriteCond %{QUERY_STRING} (^|&)ref=
RewriteRule ^folder/$ https://www.example.org/product/ [R=302,L]
Note that the regex (^|&)ref= matches the ref= URL parameter anywhere in the query string, if there happened to be other URL parameters that preceded it.
Reference:
htaccess redirect URL with parameter when a special parameter exists
https://httpd.apache.org/docs/current/mod/mod_rewrite.html#rewriterule

How to rewrite query string to hash in the URL?

I am looking to rewrite:
www.mysite.com/services/category1/?content=service1
to
www.mysite.com/services/category1/#tab-service1
I have this specific rewrite that I want to generalize for all the possible URLs on the site:
RewriteCond %{QUERY_STRING} content=service1
RewriteRule ^services/category1 services/category1/#tab-service1? [NE,R,L]
I tried the following but it didn't work :( -
RewriteCond %{QUERY_STRING} content=([a-zA-Z]+)
RewriteRule ^services/category1/?content=(.*)$ services/category1/#tab-$1 [NE,R,L]
Thanks.
You rule looks fine except for 1 thing
QUERYSTRING content=service1
isn't part of match in RewriteRule's pattern so you can't test query string (Url part after the ?) in pattern of a RewriteRule. To test url query string we use %{QUERY_STRING} variable like the one you are already using.
RewriteCond %{QUERY_STRING} content=([a-zA-Z]+)
RewriteRule ^services/category1/?$ services/category1/#tab-%1 [NE,R,L]

add string at the end of URL using htaccess which has query string also

I want to change
domain.com/division1/index.php?members/maxmusterman.5
to
domain.com/division1/index.php?members/maxmusterman.5/#div
That is if the URL contains index.php?members, then I add /#div at the end of url. I tried this
RewriteEngine On
RewriteCond %{REQUEST_URI} index.php?
RewriteRule (.*) /%1/%{QUERY_STRING}&123 [L,QSA,R=301]
but it returns
domain.com/members/maxmusterman.5&123?members/maxmusterman.5
Note here that &123 is attached after URI before starting parameters. I researched htaccess QSA flag but I could not find a way to add a custom string at the end of the query string. How can I do that. Here I have used &123 for test purpose, actual requirement is adding /#div
To redirect
domain.com/division1/index.php?members/maxmusterman.5
to
domain.com/division1/index.php?members/maxmusterman.5/#div
.
You can use something like the following :
RewriteEngine on
RewriteCond %{QUERY_STRING} !loop=no
RewriteRule ^division1/index\.php$ %{REQUEST_URI}?%{QUERY_STRING}&loop=no#div [L,R,NE]
I added an additional perameter loop=no to the destination url to prevent infinite loop error .You can't avoid this as both your old url and the new url are identical and can cause redirect loop if you remove the RewriteCond and Query perameter.
NE (no escape ) flag is important whenever you are redirecting to a fragment otherwise mod-rewrite converts the # to its hex %23 .
solution #2
RewriteEngine on
RewriteCond %{THE_REQUEST} !.*loop=no [NC]
RewriteCond %{THE_REQUEST} /division1/index\.php\?(.+)\s [NC]
RewriteRule ^ /division1/index.php?%1&loop=no#div [NE,L,R]
Clear your browser cache before testing these redirects.

mod_rewrite and redirect causing loop

I have problem when I try to redirect and rewrite together.
I have site example.com/show_table.php?table=12 (max 99 tables). I wanted nice links, so I got this .htacces rw rule:
RewriteRule ^table/([0-9]{1,2})$ show_table.php?table=$1 [L,NC]
Now are links something like example.com/table/12 - it's definitely OK. But I want all old links redirect to new format. So I use Redirect 301, I added to .htaccess this code:
RewriteCond %{REQUEST_URI} show_table.php
RewriteCond %{QUERY_STRING} ^table=([0-9]{1,2})$
RewriteRule ^show_table\.php$ http://example.com/table/%1? [L,R=301,NC]
But when I visit example.com/show_table.php?table=12, I receive just redir-loop. I don't understant - the first is rewrite, the second is redirection, there ain't no two redirections. Do You see any error?
Thanks!
Instead of checking REQUEST_URI in the condition, you need to be checking in THE_REQUEST (which contains the full original HTTP request, like GET /show_table.php HTTP/1.1). When Apache performs the rewrite, it changes REQUEST_URI, so to the rewritten value, and that sends you into a loop.
# Match show_table.php in the input request
RewriteCond %{THE_REQUEST} /show_table\.php
RewriteCond %{QUERY_STRING} ^table=([0-9]{1,2})$
# Do a full redirection to the new URL
RewriteRule ^show_table\.php$ http://example.com/table/%1? [L,R=301,NC]
# Then apply the internal rewrite as you already have working
RewriteRule ^table/([0-9]{1,2})$ show_table.php?table=$1 [L,NC]
You could get more specific in the %{THE_REQUEST} condition, but it should be sufficient and not harmful to use show_table\.php as the expression.
You'll want to read over the notes on THE_REQUEST over at Apache's RewriteCond documentation.
Note: Technically, you can capture the query string in the same RewriteCond and reduce it to just one condition. This is a little shorter:
# THE_REQUEST will include the query string so you can get it here.
RewriteCond %{THE_REQUEST} /show_table\.php\?table=([0-9]{1,2})
RewriteRule ^show_table\.php$ http://example.com/table/%1? [L,R=301,NC]

301 Redirects problem - urls with ? and =

I'm new with 301 redirects through .htacces.
I can get simple redirects as
redirect 301 /test.html http://www.domain.com/test2.html
to work but I have some urls like this
redirect 301 /test.asp?Group=100 http://www.domain.com/test3.html
and for some reason these don't work.
Thanks.
Here is set of rules for URLs you have provided:
RewriteEngine On
RewriteBase /
RewriteCond %{QUERY_STRING} =group=113 [NC]
RewriteRule ^group\.asp$ http://domain.dk/til-born.htm? [NC,R=301,L]
RewriteCond %{QUERY_STRING} =product=1136 [NC]
RewriteRule ^product\.asp$ http://www.domain.dk/til-born/bukser.html? [NC,R=301,L]
As you can see query string is matched separately to the page name. So .. for each of such redirects you need 2 lines: RewriteCond & RewriteRule.
The rule above will do EXACT match, which means /group.asp?group=113&param=value will not be redirected because query string is group=113&param=value which is more than just group=113.
To have such redirect working (when there are some optional parameters in query string) you have to modify it: RewriteCond %{QUERY_STRING} (^|&)group=113(&|$) [NC] -- this will match group=133 anywhere in query string (group=113 and group=11366 are still different, so no problems here).
This needs to be placed in .htaccess in website root folder. If placed elsewhere some tweaking may be required.
The Redirect directive (as far as I know) matches only on the path, not querystring. Instead, use RewriteRule. The QSA instructs the rewrite engine to append the querystring onto the new redirected URL.
RewriteEngine On
RewriteRule ^test\.asp http://www.domain.com/test3.html [L,R=301,QSA]

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