I am trying to set a simple replacement in my URL query strings.
I have an absolute path in my query string I would like to be replaced by a custom string.
FROM http://acme.com/a/path?file=DIR/this.file&foo=2
TO http://acme.com/a/path?file=/long/absolute/path/to/this.file&foo=2
These are my directives:
# [sudo a2enmod rewrite]
RewriteCond %{QUERY_STRING} ^(.*)file=DIR(.*)$
RewriteRule ^/a/path /a/path?%1file=/long/absolute/path/to%2
With such a configuration, replacement does not work, DIR passes through.
I configured a LogLevel to trace1 in my Apache2 configuration but I get nothing in my access.log and no useful feedback in error.log.
The question is:
References:
https://wiki.apache.org/httpd/RewriteQueryString
https://httpd.apache.org/docs/current/rewrite/remapping.html
This works for me(I've added flags R and L):
RewriteEngine on
RewriteCond %{QUERY_STRING} ^(.*)file=DIR(.*)$
RewriteRule ^/a/path /a/path?%1file=/long/absolute/path/to%2 [R,L]
See also https://httpd.apache.org/docs/2.4/rewrite/flags.html
Related
As part of Google's approach to crawling AJAX-populated content, I've got the following in a .htaccess file:
RewriteEngine on
#snapshot requests
RewriteCond %{QUERY_STRING} _escaped_fragment_=([^&]+)
RewriteRule ^.*$ system/snapshot_mode.php?project=%1
I trigger the rule with a URL like
http://myserver.co.uk/?_escaped_fragment_=token
...but it fails to go to the page specified. It does, however, if I remove the query string part of the redirect, i.e. change it to
RewriteRule ^.*$ system/snapshot_mode.php
What's up with that?
[EDIT]
I added a [R-302] to the rule and it now tries to redirect me to the script BUT via a mangled, local machine filepath, i.e.
http://localhost/C:/xampp/htdocs/docula/system/snapshot_mode.php?project=token
...and gives me a 403 access denied error.
Try this:
RewriteEngine on
RewriteCond %{QUERY_STRING} _escaped_fragment_=([^&]+)
RewriteRule ^.*$ system/snapshot_mode.php?project=%1 [L,QSA]
RewriteRules and Query String:
By default, a RewriteRule does not change the query string. Therefore, QueryString is not required in the RewriteRule. If you are not adding a parameter to the replacement URL, RewriteRule passes on the incoming query string unchanged.
If you are adding new parameters, the original query string will be discarded and the rewritten URL will get only the new parameters.
If you want to combine the original query string and the new parameters, you can append it using the Query String Append [QSA] flag.
In your code, you have a new parameter project=%1 without the [QSA] flag and therefore the _escaped_fragment_=([^&]+) parameter is discarded, making the RewriteCondition fail.
Also Note:
[R-302] is incorrect syntax. It should be [R=302]
[QSD] - Query String Discard flag is not something we would want in this case.
I was just looking for a solution to transform any =,?,& found in a query string into a simple slash /.
To be more specific, my link is something like:
http://www.mydomain.com/product.php?c=1&sc=12&products_id=15
and I would it like this:
http://www.mydomain.com/product.php/c/1/sc/12/products_id/15
whatever the master page could be (in this case is product.php, but it could be foo.php, bar.php...or else).
I have googled a lot but didn't find any good solution to achieve what i'm looking for.
I have found complex rewrite rules, but they all include the "page name" into them:
i.e.
RewriteRule ^/?index/([^/]+)/([^/]+)$ /index.php?foo=$1&bar=$2 [L,QSA]
That rule is only applicable to index.php and to known variables like foo, bar.
I need a more general one, whatever the master page is, whatever the variables are.
Can this be done?
Any suggestion?
Thanks
I assume you're using apache >= 2.2. Add this to your apache conf:
<IfModule mod_rewrite.c>
RewriteEngine On
# you absolutely need to use RewriteBase if this snippet is in .htaccess
# if the .htaccess file is located in a subdirectory, use
# RewriteBase /path/to/subdir
RewriteBase /
RewriteCond %{QUERY_STRING} ^(=|&)*([^=&]+)(=|&)?(.*?)=*$
RewriteRule ^(.*)$ $1/%2?%4= [N,NE]
RewriteCond %{QUERY_STRING} ^=$
RewriteRule ^(.*)$ $1? [R,L]
</IfModule>
The first RewriteCond/RewriteRule pair repeatedly matches a token delimited by & or = and adds it to the path. The important flag is the [N] that causes the whole ruleset to start over again, as often as the rule matches. Additionally, a = is appended to the end of the query string. This is to create a mark in the URL that at least one rewrite has happened.
The second ruleset checks for the = mark that remains after the URL has been rewritten completely and issues a redirect.
Have a look at http://wiki.apache.org/httpd/RewriteQueryString for some useful hints.
I'm trying to do a very simple rewrite of a query string
http://www.example.com/library.php?q=abscessed-tooth
to
http://www.example.com/library/abscessed-tooth
This is the code that I've written in my .htaccess file and it is doing nothing
RewriteEngine On
RewriteRule ^/library/?([^/]*)/?\/http://www.example.com/library.php?q=$1 [L]
Maybe likely .htaccess files are not considered in your environment. If in doubt turn on RewriteLogging as it is explained in the excellent documentation of the rewriting module.
Oh, and check the error log, you have a syntax error in the RewriteRule anyway: RewriteRule takes 2 arguments plus flags, your rule has only a single argument:
RewriteEngine On
RewriteRule ^library/([^/]*) http://www.example.com/library.php?q=$1 [L]
You need dollar sign in the end of "left" part not question mark:
^/library/([^/]*)/$ http://www.example.com/library.php?q=$1 [L]
Also do you need the question mark between / and ( ? It doesn't look like lookahead or lookbehind?
Try without wrapping slashes as well
^library/([^/]*)$ http://www.example.com/library.php?q=$1 [L]
I want http://server/path/app.json?a=foo&b=bar to map to http://server/path/foo.php?a=foo&b=bar using mod_rewrite. I have the following incantation in my .htaccess which doesn't give any joy
RewriteEngine On
RewriteRule ^([^.?]+).json(.*)$ $1.php$2 [L]
Suggestions?
Update: Adding rewrite.log and error.log output (comments don't allow formatting)
I get the following in the rewrite.log
strip per-dir prefix: /Users/user/Sites/dir/app.json -> app.json
applying pattern '^([^.?]+).json(.*)$' to uri 'app.json'
rewrite 'app.json' -> 'app.php'
add per-dir prefix: app.php -> /Users/user/Sites/dir/app.php
internal redirect with /Users/user/Sites/dir/app.php [INTERNAL REDIRECT]
and the apache server log says
The requested URL /Users/user/Sites/dir/app.php was not found on this server.
If I read your question correctly you want:
http://server/path/app.json?a=foo&b=bar
Going to:
http://server/path/foo.php?a=foo&b=bar
Sowhen you capture (app).json $1 is app and $2 is your second parenthesis, it's ... nothing (the part between json and the ?). As everything after the question mark is the QUERY STRING and cannot be captured here. Your rewriteRule is working on the requested file, not on the QUERY STRING. So you didn't captured foo anywhere. For the QUERY_STRING you could use the [QSA] flag on the rewriteRule, that would simply append a=foo&b=bar after your rewrite.
RewriteEngine On
RewriteRule ^([^.?]+).json(.*)$ $1.php$2 [L]
Here you tell apache to reuse $1 (the filename without .json), so app.json will get redirected to app.php, not foo.php.
RewriteEngine On
RewriteRule ^([^.?]+).json(.*)$ $1.php [L,QSA]
Will redirect app.json?a=b&z=r to app.php?a=b&z=r.
Now if you really need to capture foo as the first QUERY_STRING parameter the rule will become harder. But you could do it like that (here instead of the first parameter I detect the parameter 'a=' and capture his value in %4):
RewriteCond %{QUERY_STRING} (.*)(^|&|%26|%20)a(=|%3D)([^&]+)(.*)$
RewriteRule ^([^.?]+).json$ %4.php? [L,QSA]
I have defined alias that looks like this:
Alias /pictures/sm/ /var/www/my_site/data/_active_thumbnails/
Later in the VirtualHost section have:
DocumentRoot /var/www/my_site/sites/www.my_site.com/htdocs
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^/thumbnails/(.*)\.(jpg|JPG) /images/stg-list-img.png [PT,L]
What I'm trying to do is to display /images/stg-list-img.png placeholder image only if the original image does not exist on the drive.
Right now it's replacing all the images from /thumbnails/. It looks like the RewriteCond is not aware about the Alias. Is there the way to overcome it?
Thanks
REQUEST_FILENAME is only the full filesystem path wnen you use it with your rules in htaccess or -- in per-virtualhost config like you have it's still just the URI.
This is mainly because Apache hasn't yet had a chance to map it to any file at this stage.
You could just add the prefix to your -f test, or all of: put your rules in , adding a Rewritebase /pictures/sm/, and changing your rule's regex...
However, your regex doesn't currently make any sense. If the Alias matters and is /pictures/sm, the rewriterule could never match with ^/thumbnails.