setting and using owne variable in .htaccess - .htaccess

I set variable in .htaccess like this
SetEnv clubhub_path clubhub-ui
And I can acces it in php with
$_SERVER['clubhub_path];
But I wanted to use it in .htaccess in Rewrite Cond
RewriteCond %{REQUEST_URI} ^(?!/%{SERVER:clubhub_path}/media/).+ [NC]
I found somewhere this(%{SERVER:clubhub_path}) should work but it doesn't. I tried all the combinations with {}, %, $. No success...
Cheers

SetEnv sets environment variables, so it should be available in %{ENV:clubhub_path} but i've tried that and doesn't seem to be working.
However since you can set environment variables with RewriteRules you could write it like this:
RewriteRule ^ - [E=clubhub_path:clubhub-ui]
This rule matches every url, but doesn't rewrite it to anyting just sets an environment variable that will be available in RewriteConds like:
RewriteCond %{ENV:clubhub_path} ^clubhub-ui$
This should look like exactly the same once it gets to php. (in $_SERVER superglobal, or getenv())
Update
However you still can't use your %{ENV:variable} in the right hand side of RewriteCond. I think the only way to do this if you are on apache 2.4 and you can use ap_expr
RewriteCond expr "! '%{REQUEST_URI}' -strcmatch '/%{ENV:clubhub_path}/media/*'"
In my test environment this seem to be doing what you want (negative match on the '/clubhub-ui/media' urls, but apache2.4 is still pretty new, you probably can't have it installed if you are not self-hosted.
Maybe RewriteMap with a prg parameter and a script could implement your idea.

Related

.htaccess rewrite with multiple regex and GET value assignment

I don't have problem setting a GET variable when there is no regular expression in the rewrite rule. For example the following works as expected, when I execute sample.html?test=OK the test variable in sample.php is set as OK.
RewriteRule ^sample.html sample.php [NC]
The problem starts when there is regular expression in the rewrite rule. For example the following is not working as the above one.
RewriteRule ^sample-(.*).html sample.php?one=$1 [NC]
I want to execute URL like sample-123.html?test=OK while I have both one and test get their values in sample.php.
I've read multiple questions in here but non were answering this type of problem. I saw different answers suggesting using RewriteCond. I tried them but with no luck, as I'm not expert in .htaccess at all.
Many thanks in advance.
You will need QSA flag here:
RewriteRule ^sample-(.+)\.html$ sample.php?one=$1 [L,QSA,NC]
QSA (Query String Append) flag preserves existing query parameters while adding a new one.

RewriteRule and Hash

I have a webpage which has ugly urls like this
DOMAINNAME/gallery.php#filter=.filtername
I want them to look like this
DOMAINNAME/artwork/filtername/
I've tried this in my .htaccess file
RewriteRule ^artwork/([^.]+)/ gallery.php#filter=.$1 [NE]
But this doesn't do the trick. It just goes to DOMAINNAME/artwork/
If you are adding # in URL then you must do a full redirect since # part is only interpreted in browser:
RewriteRule ^artwork/([^./]+)/?$ /gallery.php#filter=.$1 [L,NE,NC,R=302]
I just tried this in my environment and it seems, Apache swallows everything after and including #, when it does an internal rewrite.This happens no matter, whether you use flag NE or not.
So the only solution seems to be using a regular query string, e.g.
RewriteRule ^artwork/([^.]+)/ gallery.php?filter=.$1 [L]
or separate the filter with a slash
RewriteRule ^artwork/([^.]+)/ gallery.php/filter=.$1 [L]

Why doesnt this htaccess rewrite work?

Okay so I am trying to make it so that if people go to /?char=USERNAME it would show the contents of /game/CharWidget.swf?login=USERNAME. This is my code so far:
RewriteEngine on
RewriteCond %{QUERY_STRING} char=(.*)
RewriteRule ^index.php?char=(.*) /game/CharWidget.swf?login=%1
This makes the url server side as /game/CharWidget.swf but doesn't carry the ?char=username and make it ?login=username so it wont show what I want it to show.
Edit; If it's easier doing /char/USERNAME to /game/CharWidget.swf?login=USERNAME i wouldnt mind doing that if someone could give me the code for it.
The query string is not visible to RewriteRules, so ^index.php?char=(.*) will never match. (Except that, since you haven't escaped . or ?, it will match e.g. indexZphchar=foo, which is probably not what you want.)
Also, if the user visits /?char=USERNAME, what the RewriteRule would normally see is just /; no index.php. Finally, if this is in an .htaccess file, you'll generally also need a RewriteBase directive.
Putting all those fixes together, something like this should work:
RewriteEngine On
RewriteBase /
RewriteCond %{QUERY_STRING} ^char=(.*)$
RewriteRule ^/?(index\.php)?$ /game/CharWidget.swf?login=%1 [NS]
(The regexp ^/?(index\.php)?$ will match either an empty path or index.php, with or without a leading slash. That makes it a bit more complex than absolutely necessary, but also more robust. In particular, the /? lets it also work outside .htaccess files, where the leading slash will be present.)
Ps. The regexp ^char=(.*)$ will also allow URLs like /?char=foo&bar=baz to be rewritten to /game/CharWidget.swf?login=foo&bar=baz. If you don't want to allow such rewrites, replace it with e.g. ^char=([^&;]*)$.
Edit: Unfortunately, this isn't going to work for .swf files, because those execute on the client, and so won't see any changes to the query string made by server-side rewrites.
What you could do is make the rewrite external by replacing the [NS] flag with [NS,L,R=302]. However, this will also change the URL shown in the browser address bar, which may not be what you want. If so, another option would be to make the original request serve an HTML page on which you embed the .swf file.

Htaccess caching system in subfolder not working

Sorry if this is a duplicate: I found many questions about caching system, but my problem seems to tied to the fact that the whole script is working within a subfolder.
All I need to do is implementing a simple caching system for my website, but I can't get this to work.
Here's my .htaccess file (widely commented to be clear - sorry if too many comments are confusing):
RewriteEngine on
# Map for lower-case conversion of some case-insensitive arguments:
RewriteMap lc int:tolower
# The script lives into this subfolder:
RewriteBase /mydir/
# IMAGES
# Checks if cached version exists...
RewriteCond cache/$1-$2-$3-{lc:$4}.$5 -f
# ...if yes, redirects to cached version...
RewriteRule ^(hello|world)\/image\/([a-zA-Z0-9\.\-_]+)\/([a-zA-Z0-9\.\-_]+)\/([a-zA-Z0-9\.\-_\s]+)\.(png|gif|jpeg?|jpg)$ cache/$1-$2-$3-{lc:$4}.$5 [L]
# ...if no, tries to generate content dynamically.
RewriteRule ^(hello|world)\/image\/([a-zA-Z0-9\.\-_]+)\/([a-zA-Z0-9\.\-_]+)\/([a-zA-Z0-9\.\-_\s]+)\.(png|gif|jpeg?|jpg)$ index.php?look=$1&action=image&size=$2&data=$3&name=$4&format=$5 [L,QSA]
# OTHER
# This is always non-cached.
RewriteRule ^(hello|world)\/([a-zA-Z0-9\.\-_\s]+)\/([a-zA-Z0-9\.\-_\s]+)?\/?$ index.php?look=$1&action=$2&name=$3 [QSA]
Now, the issue is that the RewriteCond seems to be always failing, as the served image is always generated by PHP. I also tried prepending a %{DOCUMENT_ROOT}, but is still not working. If I move the whole script to the root directory, it magically starts working.
What am I doing wrong?
Well one thing that you are doing wrong is trying to use a rewrite map in an .htaccess file. in the first place. According to the Apache documentation:
The RewriteMap directive may not be used in <Directory> sections or .htaccess files. You must declare the map in server or virtualhost context. You may use the map, once created, in your RewriteRule and RewriteCond directives in those scopes. You just can't declare it in those scopes.
If your ISP / sysadmin has already defined the lc map then you can use it. If not then you can only do case-sensitive file caching on Linux, because its FS naming is case sensitive. However, since these are internally generated images, just drop the case conversion and stick to lower case.
%{DOCUMENT_ROOT} may not be set correctly at time of mod_rewrite execution on some shared hosting configurations. See my Tips for debugging .htaccess rewrite rules for more hints. Also here is the equivalent lines from my blog's .htaccess FYI. The DR variable does work here, but didn't for my previous ISP, to I had to hard-code the parth
# For HTML cacheable blog URIs (a GET to a specific list, with no query params,
# guest user and the HTML cache file exists) then use it instead of executing PHP
RewriteCond %{HTTP_COOKIE} !blog_user
RewriteCond %{REQUEST_METHOD}%{QUERY_STRING} =GET [NC]
RewriteCond %{DOCUMENT_ROOT}html_cache/$1.html -f
RewriteRule ^(article-\d+|index|sitemap.xml|search-\w+|rss-[0-9a-z]*)$ \
html_cache/$1.html [L,E=END:1]
Note that I bypass the cache if the user is logged on or for posts and if any query parameters are set.
Footnote
Your match patterns are complicated because you are not using the syntax of regexps: use the \w and you don't need to escape . in [ ] or / . Also the jpeg isn't right is it? So why not:
RewriteRule ^(hello|world)/image/([.\w\-]+)/([.\w\-]+)/([\w\-]+\.(png|gif|jpe?g))$ \
cache/$1-$2-$3-$4 [L]
etc.. Or even (given that the file rule will only match for valid files in the cache)
RewriteRule ^(hello|world)/image/(.+?)/(.+?)/(.*?\.(png|gif|jpe?g))$ \
cache/$1-$2-$3-$4 [L]
The non-greedy modifier means that (.+?) is the same as ([^/]+) so doing hacks like ../../../../etc/passwd won't walk the file hierarchy.

.htaccess rewritecond rewrite case level 2 folder=info

I wanted to set .htaccess to rewrite:
example.com/bla/info/
to
example.com/info/index.php?q=bla
example.com/bla/info/txt/
to
example.com/info/index.php?q=bla&t=txt
I wanted the browser still to display:
example.com/bla/info/txt/
I didn't want rewrite in the level 2 rewrites, like:
example.com/bla/xxx/
or
example.com/ccc/zzz/aaa/
but
example.com/silly/info/
would work as well as
example.com/strange/info/mytxt/
Did this make sense?
Any help?
If you start your pattern with ^ and end it with $, the rule will only apply if the whole string matches.
RewriteRule ^/bla/info/$ /info/index.php?q=bla
RewriteRule ^/bla/info/txt/$ /info/index.php?q=bla&t=txt
If you use do not use the [R] option, the URL shown in the browser will be whatever the user entered.
Are you trying to make this general-purpose? If so, you can use regex-type matching and variable substitution. To make 'bla' match any string up to the next slash (/), use
([^/]+)
in your pattern and reference it with $1 in your substitution.
RewriteRule ^/([^/]+)/info/$ /info/index.php?q=$1
RewriteRule ^/([^/]+)/info/([^/]+)/$ /info/index.php?q=$1&t=$2
I recommend the Apache web pages about mod_rewrite for more information.
[Edit. Fixed the rules to not include the host name in the pattern, as the original poster figured out.]
--
bmb
you got me in the right track.
i ended up with something like this:
RewriteRule ^([^/\.]+)/info/?$ example/info/index.php?q=$1 [L]
thanks a lot

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