I need to redirect an incoming request with the following URL:
http://mywebsite.com/abc/mapserv.exe?map=123
to
http://mywebsite.com/abc/mapserv.exe?map=C:\Mapserver\ms4w\Apache\htdocs\Mapfiles\123.map
I already managed to do simple mod_rewrites but the question mark is killing this one all the time. I am not able to adapt common Query String examples to my case so I need help with this exact case.
As though you did not show your try, you could test this:
RewriteEngine On
RewriteCond %{QUERY_STRING} map=([0-9]+)$
RewriteRule . %{REQUEST_URI}?map=C:\\Mapserver\\ms4w\\Apache\\htdocs\\Mapfiles\\%1.map [NE,L]
Rewrite flags used:
NE: Not Escape,
L: Last instruction to run.
I was still having trouble with the .exe url since it is not accessible if you dont deliver the parameters right when you send the request. And then the redirect wont fire. So I made a dummy mapserver.php file which allows setting a parameter like so:
http://mywebsite.com/abc/mapserver.php?map=123
After hours of trying I ended up with the following RewriteRule:
RewriteCond %{QUERY_STRING} ^map=(.*)$
RewriteRule ^mapserver.php?$ /cgi-bin/mapserv.exe?map=C://Mapserver//ms4w//Apache//htdocs//Mapfiles//%1.map
Related
I am using a .htaccess file and attempting to write three different rewrite rules.
I am trying to turn http://e-innovate.co.uk/webstats/s.php to http://e-innovate.co.uk/webstats/ so i am hiding the "s.php"
#RewriteRule ^http://e-innovate.co.uk/webstats/s.php$ http://www.e-innovate.co.uk/webstats/ [R,NC,L]
In the below two rules i am trying to change the local the script is searching for the image.
#RewriteRule ^/cPanel_magic_revision_1391334393/unprotected/cpanel/images/login-whisp.png$ http://www.e-innovate.co.uk/images/failed_authentication.png [R,NC,L]
#RewriteRule ^/cPanel_magic_revision_1391334231/unprotected/cpanel/images/cpanel-logo.png$ http://www.e-innovate.co.uk/images/failed_authentication.png [R,NC,L]
I have tried the above rules but they are not working and there is no error messages generated, it just appears the rules are being ignored, have i written these wrong as i know i am missing something but i am not sure what i am missing ?
Thanks
Below rule will help you with the first condition.
RewriteRule ^/webstats/?$ /webstats/s.php [L]
In case if you need redirection then add R flag to the rule. If you need more debugging information on mod_rewrite you can enable it with below directive (trying this directive in production will slow down your apache response).
LogLevel info rewrite:trace5
Regarding your second and third condition they look perfect and should work. What is the error you are getting ?
I have the following URL...
http://localhost/http.mygarble.com/foundationsofwebprogramming/86
...that I want to convert into the following:
http://localhost/http.mygarble.com/php/blog.php?subdomain=foundationsofwebprogramming&page=posts&label=86
I thought I could achieve this with the following rule:
RewriteRule ([^/]+)/([^/]+)$ php/blog.php?subdomain=$1&page=post&label=$2 [NC,L]
However what I find is that this rule is applied repeatedly, resulting in an internal server error. I understand that when the URI is transformed using this rule, the resulting URI will also match the rule, and therefore it is applied again ad-infinitum.
My previous (admittedly rather hazy) understanding was that the [L] flag would stop further processing, although I now understand that this simply means that only the remainder of the rules are skipped, and does not stop the rewrite engine running through the rules again.
I can fix this problem by adding the following condition...
RewriteCond $0 !php/blog.php
RewriteRule ([^/]+)/([^/]+)$ php/blog.php?subdomain=$1&page=post&label=$2 [NC,L]
...or by writing a more specific regular expression. But what I really want to do is find a way of stopping the rewrite engine from attempting ANY further matches once this rule is matched once. Is this possible?
Many thanks.
Usually 2 methods are used.
The first one is a Rewrite Condition testing that the requested file is not a real file. When internal recursion arise your php/blog.php is a real file and rewriterule is not executed the 2nd time. Side-effect is that any request for a file which exists won't be rewritten (which can be good side effect)
RewriteCond %{REQUEST_FILENAME} !-f
The second solution is to check you're not in an internal redirection with:
RewriteCond %{ENV:REDIRECT_STATUS} ^$
Side effect of this 2nd solution is that the rewriteRule cannot be applied if some other rules are applied before (if you want some internal redirection to run after a first pass of rewriting in fact).
Edit
For completion I will add a third method: the [NS] or [nosubreq] tag seems to be doing the same thing. Preventing the rule usage after an internal redirection.
And the third method is to upgrade apache to 2.3.9 or higher and use [END] flag instead of [L].
No side effects
I hope someone can answer "why" this is the case:
There are times I can use:
...
RewriteRule ^(.*)$ index.php/$1 [L]
and then there are times where the above doesn't work and I must use:
...
RewriteRule ^(.*)$ index.php?/$1 [L]
the main difference being the addition of ? ... I typically see this happen on different system setups, fastcgi vs module vs cgi, but haven't done enough setups to see the pattern.
I am guessing that it is related to how the apache/setup parses path/path_info data. Any thoughts are welcomed, ideally I'd like to have a solid explanation of why this is and when it occurs.
On the same thread ... Sometimes Apache does not output PATH_INFO environment var which might be the root cause of this, but I wonder why that is.
The ? is the marker of the beginning of the query string.
So basically your first rule rewrite a URL "x" to a file "x" in the directory index.php, the second rewrite a URL "x" to the index.php file with parameter "x". [(BTW I don't know how to retrieve a variable with no name in the file, usually you use ?var=value&var2=value2 etc...)
I'd like to rewrite:
www.example.com/file.html?username=john&number=1234
To:
www.example.com/users/john
But I can't figure out how to extract the "username" value from the query string. I've been Googling this all morning and reading the official docs but no luck. I need to solve this problem with a rewrite, rather than changing the application.
Any help much appreciated!
Rangi
RewriteCond %{QUERY_STRING} username=([^&]+)
RewriteRule /?file.html /users/%1
Going to http://example.com/file.html?username=foobar will then redirect you to http://example.com/users/foobar, add an [R] to the end if you need an external redirect.
Mostly the rewrites are done the other way around, it's rare to see someone who wants a querystring in 'outside' urls but doesn't have them internally. Or did I understand your question backwards?
Ok I've solved this using two rules, although not sure if I'm doing it the best way.
RewriteRule ^file.html xxx/%{QUERY_STRING} [L]
RewriteRule ^xxx/[^=]*=([^&]*) /users$1 [R=301,L]
The first rule makes the query string part of the URL, so the second rule can see it, and therefore match and rewrite parts of it. I used "xxx" but it could be anything.
The web server is Apache. I want to rewrite URL so a user won't know the actual directory. For example:
The original URL:
www.mydomainname.com/en/piecework/piecework.php?piecework_id=11
Expected URL:
piecework.mydomainname.com/en/11
I added the following statements in .htaccess:
RewriteCond %{HTTP_HOST} ^(?!www)([^.]+)\.mydomainname\.com$ [NC]
RewriteRule ^(w+)/(\d+)$ /$1/%1/%1.php?%1_id=$2 [L]
Of course I replaced mydomainname with my domain name.
.htaccess is placed in the site root, but when I access piecework.mydomainname.com/en/11, I got "Object not found".(Of course I replaced mydomainname with my domain name.)
I added the following statements in .htaccess:
RewriteRule ^/(.*)/en/piecework/(.*)piecework_id=([0-9]+)(.*) piecework.mydomainname.com/en/$3
Of course I replaced mydomainname with my domain name.
.htaccess is placed in the site root, but when I access piecework.mydomainname.com/en/11, I got "Object not found".(Of course I replaced mydomainname with my domain name.)
What's wrong?
Try using RewriteLog in your vhost or server-conf in order to check the rewriting process. Right now you just seem to guess what mod_rewrite does.
By using RewriteLogLevel you can modify the extend of the logging. For starters I'd recommend level 5.
PS: Don't forget to reload/restart the server after modifying the config.
Here's a quick overview of what's happening:
RewriteCond %{HTTP_HOST} ^(?!www)([^.]+)\.mydomainname\.com$ [NC]
First, the question mark is supposed to be at the end.
$1 would (should) match anything that is not 'www' 0 or 1 times.
$2 matches anything that is not a character 1 or more times, which theoretically would match a blank space there but likely would never match anything.
Then it requires '.mydomainname.com' after those two groupings.
Your first two conditions are looking for two separate groupings.
I'm not sure exactly how you're trying to set up your structure, but here is how I would write it based on your original and expected URL's:
RewriteCond %{HTTP_HOST} !^www\.mydomainname\.com$ [NC]
RewriteCond %{HTTP_HOST} ^(\w+)\.mydomainname\.com$ [NC]
RewriteRule ^(\w+)/(\d+)$ /$1/%1/%1.php?%1_id=$2 [L]
Basically, your first condition is to make sure it's not the URL beginning with 'www' (it's easier to just make it a separate rule). The second condition makes it check any word that could possibly be in front of your domain name. Then your rewrite rule will redirect it appropriately.
Get rid of the last .htaccess line there in your question...
Someone please correct me if I typed something wrong. I don't remember if you have to have the '\' in front of '\w' and '\d' but I included them anyways.
You are doing it backwards. The idea is that you will give people the friendly address, and the re-write rule will point requests to this friendly, non-existent page to the real page without them seeing it. So right now you have it only handling what to do when they go to the ugly URL, but you are putting in the friendly URL. since no rule exists for when people put the friendly URL directly, apache looks for it and says "Object not Found"
So add a line:
RewriteRule piecework.mydomainname.com/en/(*.) ^/$3/en/piecework/$3?piecework_id=([0-9]+)(.*)
Sorry, that's quite right, but the basic idea is, if they put in the URL you like, Apache is ready to redirect to the real page without the browser seeing it.
Update
I'm way to sleepy to do regex correctly, so I had just tried my best to move your example around, sorry. I would try something more simple first just to get the basic concept down first. Try this:
RewriteRule www.mydomainname.com/en/piecework/piecework\.php\?piecework_id\=11 piecework.mydomainname.com/en/11
At the very least, it will be easier to see what isn't working if you get errors.