I don't understand why I always have such a massive problem with rewrite rules, but I simply want to append to the query string if it exists and add a ? if it does not. I actually don't care if the URL is changed in the browser or not -- it just has to load the correct target page.
RewriteRule /cia16(.*)\?(.*) /cia$1?$2&CIA=16
RewriteRule /cia16(.*) /cia/$1?CIA=16
If I go to /cia16/steps.php?page=1 it actually gets rewritten to /cia/steps.php?CIA=16 -- that is it seems accept the query string part is not even considered part of the URL for the purposes of the rewrite.
What do I have to do to get the rewrite to work properly with an existing query string?
You can't match against the query string within a RewriteRule, you need to match against the %{QUERY_STRING} variable in a RewriteCond. However, if you want to just append the query string, you can just use the QSA flag:
RewriteRule /cia16(.*) /cia/$1?CIA=16 [QSA]
The URI: /cia16/steps.php?page=1 would get rewritten to /cia/steps.php?CIA=16&page=1. If for some reason, you need the page=1 before the CIA=16, then you can do something like this:
RewriteRule /cia16(.*) /cia/$1?%{QUERY_STRING}&CIA=16
Related
I currently use the following recipe to route .rss files to a script that produces a rss feed dynamically:
RewriteRule ^(.*).rss$ /get-feed.pl?item=$1
It works perfectly for URLs like this:
www.example.com/articles.rss
What I would to like to do is change the URL to this:
www.example.com/rss/articles/
Everything I have tried doesn't work.
I just tried to put some slashes in the recipe but I'm not an expert in these recipes so they didn't work. Somethig like this didn't work: RewriteRule ^/rss/(.*)/$ /get-feed.pl?item=$1
("recipe" = regular expression / "regex" for short OR RewriteRule "pattern" from the Apache docs - At least I think that is what you are referring to? We are not baking a cake here! ;) )
That is very close, except that the URL-path that the RewriteRule pattern matches against does not start with a slash when used in a .htaccess (directory) context. So, it would need to be like this: ^rss/(.*)/$. If you had looked to see what your first rule was returning you would have seen that there was no slash prefix in the backreference that was captured (ie. the value of the item URL parameter).
However, there are other (minor) issues here...
The 2nd path segment cannot be empty, so it would be preferable to match something, rather than anything. eg. (.+) instead of (.*). However, this should be made more restrictive, so to match just a single path segement, instead of any URL-path (which is likely to fail anyway I suspect). eg. Presumably /rss/foo/bar/baz/ should not match?
Again, if you only want to match a string of the form articles then make the regex more restrictive so that it only matches letters (or perhaps letters + numbers + hyphens)?
You are missing the L (last) flag on this rule, which is a problem if you have other directives that follow.
So, if you are wanting to rewrite URLs of the form www.example.com/rss/articles/ (note the trailing slash) then try the following instead:
RewriteRule ^rss/([\w-]+)/$ /get-feed.pl?item=$1 [L]
Make sure the browser cache is cleared before testing.
And this would need to go near the top of the .htaccess file, before any existing rewrites.
Aside: A quick look at your original directive:
RewriteRule ^(.*).rss$ /get-feed.pl?item=$1
This is not strictly correct, as it potentially matches too much. The unescaped dot before rss matches any character. And the .* subpattern matches 0 or more characters of anything - it must be something. So, this should really be something like:
RewriteRule ^([\w-]+)\.rss$ /get-feed.pl?item=$1 [L]
I am learning .htaccess
My URL string is
http://abc.bcd.com/company/abc
I do apply to redirect my page if the company name is abc, xyz etc. and my rewrite rule is
RewriteRule ^/company/(.*?)$ /hhhhh/ll/test_page.html?company_letter=$1 [L,PT]
Sometimes my url change to
http://abc.bcd.com/company/abc?locale=en
What will be query string condition to accommodate both the url and should work properly ?
I have tried this but not helping .
RewriteCond %{QUERY_STRING} ^locale=(.*)$
The rewrite condition should help me like
if(locale="something")
/hhhhh/ll/test_page.html?company_letter=abc&locale=something
else
/hhhhh/ll/test_page.html?company_letter=abc
You just need to add QSA flag in your rule:
RewriteRule ^/?company/(.*)$ /hhhhh/ll/test_page.html?company_letter=$1 [L,QSA]
QSA (Query String Append) flag preserves existing query parameters while adding a new one.
The query string part of the incoming URL is a very specific thing. First you should know that classical rewriteRules are not managing the query string.
So, for example, you cannot make a RewriteRule with a check for a query string parameter value. Query strings parameters could be repeted several times, could appear in any order, and are not url-decoded (the location part of the url is url-decoded when mod_rewrite works on it).
This explains why some RewriteCond are sometimes used on the %{QUERY_STRING}, it cannot be done in RewriteRule but could be tested in rewriteCond, with all the previous probelsm ( repetition, order, url-encoding, etc).
But some rewriteRule tags can be applied for query string managment. Currently your tags are [L,PT], which also be writtent [last,passthrough].
You can add a qsappend or QSA tag which explicitly tells mod_rewrite to combine the original query string and the generated one.
So with
RewriteRule ^/company/(.*?)$ /hhhhh/ll/test_page.html?company_letter=$1 [last,passthrough,qsappend]
This:
http://abc.bcd.com/company/abc
Will go to
/hhhhh/ll/test_page.html?company_letter=abc
And this:
http://abc.bcd.com/company/abc?locale=en
Will go to
/hhhhh/ll/test_page.html?company_letter=abc&locale=en
Like so many I am struggling with what ought to be a simple rewrite
The initial form is something like:
http://cassie-family.co.uk/individual.php?pid=I807&ged=Cassy%20Family%20History.ged
The last parameter only needs rewriting, as in:
http://cassie-family.co.uk/individual.php?pid=I807&ged=Cassie%20-%20Cassy%20Family%20History
I have tried to trap the first parameter using:
RewriteCond %{QUERY_STRING} ^pid=([^&]+) [NC]
The nearest (incorrect) RewriteRule is:
RewriteRule ^(.*)$ individual.php&pid=%1&ged=Cassie%20-%20Cassy%20Family%20History [L, NC, R=301]
The moment I try to replace the '&' after individual.php with the correct '?' the URL is written as:
http://cassie-family.co.uk/individual.php
So.. the parameter is being trapped correctly but the rewrite rule is clearly mangled. The error lies in here:
^(.*)$ individual.php&
What construct should I be using to replace only the 2nd (passed-in) parameter value (which is always the same fixed string) with a different 2nd value (which is always the same but slightly different fixed string)? Adding a B flag seems to make no difference.
All suggestions welcome,
Thanks,
Ric
I have a website with joomla and I need to redirect (301) some links
They are in this form (index.php?Itemid= identify them - all links that doesn't have this part shouldn't be redirected)
/index.php?Itemid=544&catid=331:savona&id=82356:smembramento-dei-cantieri-baglietto-di-varazze-lopposizione-delle-maestranze&option=com_content&view=article
This should work
RewriteRule ^index.php?Itemid(.*)$ http://www.ligurianotizie.it/archive/index.php?Itemid$1 [L,R=301]
But the first ? (question mark) seems to cause problems.
In fact, if we suppose that the links are without the question mark
/index.phpItemid=544&catid=331:savona&id=82356:smembramento-dei-cantieri-baglietto-di-varazze-lopposizione-delle-maestranze&option=com_content&view=article
I would use
RewriteRule ^index.phpItemid(.*)$ http://www.ligurianotizie.it/archive/index.php?Itemid$1 [L,R=301]
and everything is perfect. But unfortunately real links has that question mark, and I have to find a solution.
What I have to do with that question mark?
Is the ? character escaped? try to add the NE (noescape) flag like this:
RewriteRule ^index.php?Itemid(.*)$ http://www.ligurianotizie.it/archive/index.php?Itemid$1 [L,R=301,NE]
The part behind the question mark is the query string. You can use RewriteCondto determine if it is not empty, and based on that make the decision to redirect.
Note: Query String
The Pattern will not be matched against the query string. Instead, you must use a RewriteCond with the %{QUERY_STRING} variable. You can, however, create URLs in the substitution string, containing a query string part. Simply use a question mark inside the substitution string, to indicate that the following text should be re-injected into the query string. When you want to erase an existing query string, end the substitution string with just a question mark. To combine a new query string with an old one, use the [QSA] flag.
Source: http://httpd.apache.org/docs/2.0/mod/mod_rewrite.html
This should help you:
RewriteEngine On
RewriteBase /
RewriteCond %{QUERY_STRING} Itemid
RewriteRule ^index.php(.*)$ http://www.ligurianotizie.it/archive/index.php$1 [L,R=301]
Every link containing "Itemid" will be redirected, the others not.
i have hundreds of crawl errors to links like:
http://www.myfakebaseurl.com/education/imgcourse/Course.php?wikiinfa=1&page=5438
which i'd like to redirect to:
http://www.myfakebaseurl.com/education/courses.html
RewriteRule ^education/imgcourse/Course.php?(.*)$ http://wwww.myfakebaseurl.com/education/courses.html [R=301,L]
still results in:
http://www.myfakebaseurl.com/education/courses.html?wikiinfa=1&page=4973
How do i get rid of the all the $_GET variables?
A new given query string will replace the old query string unless the QSA flag is given, so just give an empty query string.
RewriteRule ... http://example.com/foo.php? [L]