mod-rewrite rules executing out of order - mod-rewrite

Okay, so I have two separate mod-rewrite rules in my vhost block. The first rule redirects a customer offsite if they come in thru an affiliate URL such as example.com/1234.html and the second rule forces the URL to always contain www dot like www.example.com.
# Affiliate Links
RewriteRule ^([0-9]+)\.html$ http://affiliates.example.com/log.php?id=$1 [R=302,L]
# Ensure we are always on www dot
RewriteCond %{HTTP_HOST} ^example\.loc [NC]
RewriteRule (.*) http://www.example.com$1 [R=301,L]
The rules themselves work great. The problem is that if the first rule applies I want it to immediately redirect, however it seems as if the second rule is hoisted to the top because it always takes precedence. What do I need to change so that these execute in order?

You've stated that this is in a vhost block. In that context (as opposed to, for example, an .htaccess file) URLs always start with '/'
Thus
RewriteRule ^([0-9]+)\.html$ http://affiliates.example.com/log.php?id=$1 [R=302,L]
should instead be
RewriteRule ^/([0-9]+)\.html$ http://affiliates.example.com/log.php?id=$1 [R=302,L]
(ie, with the leading slash), otherwise it will never match anything.

Related

RewriteRule domain which contains '?'

I want to have RewriteRule where domain's /page/test or /page/test/ go to www.domain.com. Only for this two example.
I try:
RewriteRule ^/page/test/?$ http://www.domain.com [R=301,L,NC]
This will be good but I have other pages like /page/test/?D_test
and when I put RewriteRule, redirect also /page/test/?D_test. Problem is '?'. How should I write my rule to don't rewrite another page's to www.domain.com ? for example
/page/test/?D_test /page/test/(.*)
I'm not sure I understand your question. You are either asking how can I redirect all the traffic including the query string to the domain and take off the query string. In that case I usually do it this way:
RewriteRule ^/page/test/?$ http://www.domain.com? [R=301,L,NC]
If you want to make it so it doesn't redirect if there is a query string then you have to use a rewrite conditional.
RewriteCond %{QUERY_STRING} ^$
RewriteRule ^/page/test/?$ http://www.domain.com? [R=301,L,NC]

mod_rewrite, change one URL with query to a completely different URL

I am migrating data from one content management system to another. There is no relationship between old URLs and new URLs, although both contain query strings. I am trying to set up a set a rewrites that will redirect broad category lists of data from one to the other.
Here's a sample:
OLD
rss.php?categoryID=53
NEW
index.php?module=news&type=user&func=list&tid=1&filter=blogtopic:eq:19
I tried
RewriteRule ^rss.php\?categoryID=53 index.php?module=news&type=user&func=list&tid=1&filter=blogtopic:eq:19 [L]
but it doesn't match. If I follow that one with
RewriteRule ^rss.php index.php?module=news&type=user&func=list&tid=1 [L]
if DOES match, so I conclude that the question mark in the old URL is causing the problem. I am already escaping the question mark. What do I do?
I will probably end up with about 50 of these in my .htaccess file.
You can't match against the query string (all that stuff after the ?) in a RewriteRule, you need to use a RewriteCond and match against the `%{QUERY_STRING} var:
RewriteCond %{QUERY_STRING} ^categoryID=53$
RewriteRule ^rss\.php$ /index.php?module=news&type=user&func=list&tid=1&filter=blogtopic:eq:19 [L]
Or change the brackets to [R=301,L] if you want to redirect the browser.

mod_rewrite is being ignored

I'm trying to transform "domain.com/index.php?site=food&category=beef" into "domain.com/food/beef" but it does not work, no matter what I try. It always leaves the original domain and I get no errors.
I think it's my fault, I tried this for 3 different URLs on 3 different servers (and 3 different projects)... it just seems like I don't get how mod_rewrite really works, though I read every documentation on this topic I found. I even spent days here on SO without finding any solution.
Mod_rewrite is enabled on the server:
RewriteEngine On
RewriteRule ^ http://www.google.com [R,L]
gives me "http://www.google.com/?site=food&category=beef". It looks like mod_rewrite does not recognise the query string... So I tried several solutions with RewriteCond %{QUERY_STRING}... but nothing works :/
Hopefully you guys can help me! I'm going insane on this!
Thanks in advance!
Try:
RewriteEngine on
RewriteRule ^food/beef$ index.php?site=food&category=beef [L]
Or more generally:
RewriteEngine on
RewriteRule ^([a-zA-Z0-9_-]+)/([a-zA-Z0-9_-]+)$ index.php?site=$1&category=$2 [L]
Are you trying to do something like this?
RewriteRule ^([^/]+)/([^/]+)/? /index.php?site=$1&category=$2 [L]
This will make it so when you go to http://domain.com/food/beef the request gets rewritten to "/index.php?site=food&category=beef" internally and index.php is used to serve the original request. The browser's location bar will still say "http://domain.com/food/beef".
If you want the location bar to say http://domain.com/index.php?site=food&category=beef then add an "R," to the "[L]". If this is backwards and you want it so when someone enters http://domain.com/index.php?site=food&category=beef in the location bar, and the request gets rewritten to "/food/beef" internally on the server, then you need to parse out the query string using RewriteCond:
RewriteCond %{QUERY_STRING} ^site=([^&]+)&category=([^&]+)
RewriteRule ^index.php /%1/%2? [L]
The same thing applies with the "R" causing a browser redirect like the first example. If you want the location bar to change to http://domain.com/food/beef then the brackets should look like: [L,R]. Note that you need a ? at the end of the target in the rule, so that query strings don't get thrown in. That is why in your google example, the query string is being appended.
EDIT:
Seeing as you just wanted to change what's in the browser's location bar and not where the content is:
You need to re-rewrite what the 2nd rule above has rewritten BACK to index.php, but without a redirect. In order to keep the 2 rules from looping indefinitely because one rule rewrites to the other rule and vice versa, you need to add a flag somewhere to keep the 2nd rule above from redirecting you over and over again.
So combining the two, you'll have this:
RewriteRule ^([^/]+)/([^/]+)/? /index.php?site=$1&category=$2&redirected [L]
RewriteCond %{QUERY_STRING} !redirected
RewriteCond %{QUERY_STRING} ^site=([^&]+)&category=([^&]+)
RewriteRule ^index.php /%1/%2? [L,R=301]
Note the redirected parameter in the query string. This gets inserted when someone tries to access the clean version of the url, e.g. "/food/beef". internally, it gets rerouted to index.php but since the rule doesn't have a "R", the browser's location bar doesn't change.
The second rule now checks if the request contains the redirected param in the query string. If it doesn't, that means someone entered in their browser's location bar the index.php url, so redirect the browser to the clean version.

Basic help with mod_rewrite conditions

Hi. I am new to mod_rewrite and was wondering if it was possible to do the following:
RewriteRule ^([^/]*)$ index.php?slug=$1
This rule will point only at index.php but if I wanted to do another rule that pointed a specific slug to a different script, i.e.
RewriteRule ^a-new-page$ different.php
This would not work because the first rule has declared anything that is entered should point at index.
Is there a way to force the new rule for that specific slug?
Yes, it is possible -- just place such specific rule before generic/broad one (the order in which rules are declared matters):
RewriteRule ^a-new-page$ different.php
RewriteRule ^([^/]*)$ index.php?slug=$1
Also please pay attention to the broad rules -- they may enter into a rewrite loop (after rewrite new URL goes into next iteration, and if rule is not written right it may enter endless loop which Apache will have to forcedly terminate and your user will see an 500 error page instead). Better rule will be:
# specific rule
RewriteRule ^a-new-page$ different.php [L,QSA]
# broad rule (will be triggered if requested resource is not a file or directory)
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^([^/]*)$ index.php?slug=$1 [L,QSA]
[L] tells Apache to stop rewriting if this rule matches
[QSA] tells to append query string to a new URL (useful if you have URL parameters: e.g. tracking data, page parameters etc).
Useful Link: http://httpd.apache.org/docs/current/rewrite/

Isapi Rewrite: from www to non-www and at the same time from http to https

i have tried it all!
this:
RewriteCond %{HTTP_HOST} ^www\.(.*)
RewriteRule ^.*$ https://%1/$1 [R=301,L]
works only if i don't put the http at the beggining
how do make that to work:
if there is http redirect to https
if there is www redirect to non-www
and ofcourse both on the same time
http://www.domain.com -> https://domain.com
www.domain.com --> https://domain.com
http://domain.com --> https://domain.com
with every subfolders after and query!
I assume you also want
https://www.domain.com -> https://domain.com
Did you ever get this working? I'm having trouble getting a test https site going to double-check this.
In the meantime, I do see a couple things, so try this instead (this assumes isapi_rewrite v3, which it looks like you're using):
RewriteCond %{HTTP_HOST} ^www\.(.*)
RewriteRule ^(.*)$ https://%1$1 [NC,R=301]
This adds parentheses to the RewriteRule to capture the url for the $1.
Then the slash between the %1$1 isn't needed, since there's one at the start of the $1 capture.
I like to use NC for not case-sensitive, and the R rule is a final rule, so you don't need the L for last.
EDIT
I revisited this answer, to update/clarify a couple of secondary issues in my original answer above. These don't change the main solution above, which was to add the parentheses to do the capture.
Original:
Then the slash between the %1$1 isn't needed, since there's one at the start of the $1 capture.
This actually depends where the rules are, and whether there's a RewriteBase statement. Common shared-host configurations don't have the leading slash here in the rules, so the slash would be needed. If you're not sure, you can try with and without.
Original:
I like to use NC for not case-sensitive, and the R rule is a final rule, so you don't need the L for last.
It turns out it is useful to have L with R for performance, as [NC,R=301,L]. I had actually asked this at Helicon Tech a year before this question, but had forgetten it:
http://www.helicontech.com/forum/14826-Does_Redirect_need_Last.html
From their response:
... the reason for us to use [L] in 301 redirect rules is that redirect occurs not that
immediately. Even though the rule is matched futher rules will be proccessed (run through), unless you have [L]....

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