I'm trying to create a rewrite rule that will ignore any additional URL query/parameters and just redirect based on the path.
My company has a Wifi Hotspot service that does some DNS routing trick to force people to login before they can use it. Unfortunately when folks get disconnected from the WiFi and dropped back to their normal cell data service sometimes a URL request is still sent to our host, and it shows up as:
www.ourwebsite.com/login?dst=http://www.google.com/m?client=ms-android-verizon&source=android-home
I already wrote a set of rules to take care of base paths of /login and /login/ to redirect to our homepage,
RewriteCond %{THE_REQUEST} ^.*\/login/\ HTTP/
RewriteRule ^(.*)login/?$ "/$1" [R=301,L]
RewriteCond %{THE_REQUEST} ^.*\/login\ HTTP/
RewriteRule ^(.*)login?$ "/$1" [R=301,L]
but I am having trouble coming up with an appropriate string to ALWAYS redirect based souly on the path, and ignore any query parameters that may or may not come after.
Any help would be appreciate! Thanks in advance.
If I understood right, something like this should do it:
Options +FollowSymLinks -MultiViews
RewriteEngine On
RewriteBase /
RewriteRule ^login /? [R=301,L]
This rule-set will redirect to root as long as the incoming URL is something like:
http://www.ourwebsite.com/login?any_query
From Apache 2.4.0 on you can apply the QSD-flag to the rule.
When the requested URI contains a query string, and the target URI does not, the default behavior of RewriteRule is to copy that query string to the target URI. Using the [QSD] flag causes the query string to be discarded.
-- https://httpd.apache.org/docs/2.4/rewrite/flags.html#flag_qsd
When using this flag for earlier Apache versions you'll cause an 500 Internal Server Error.
Related
RewriteEngine on
RewriteCond %{QUERY_STRING} (^|&)public_url=([^&]+)($|&)
RewriteRule ^process\.php$ /api/%2/? [L,R=301]
Where domain.tld/app/process.php?public_url=abcd1234 is the actual location of the script.
But I am trying to get .htaccess to make the URL like this: domain.tld/app/api/acbd1234.
Essentially hides the process.php script and the get query ?public_url.
However the script above is returning error 404 not found.
I think this is what you are actually looking for:
RewriteEngine on
RewriteCond %{QUERY_STRING} (?:^|&)public_url=([^&]+)(?:$|&)
RewriteRule ^/?app/process\.php$ /app/api/%1 [R=301,QSD]
RewriteRule ^/?app/api/([^/]+)/?$ /app/process.php?public_url=$1 [END]
If you receive an internal server error (http status 500) for that then check your http servers error log file. Chances are that you operate a very old version of the apache http server, you may have to replace the [END] flag with the [L] flag which probably will work just fine in this scenario.
And a general hint: you should always prefer to place such rules inside the http servers (virtual) host configuration instead of using dynamic configuration files (.htaccess style files). Those files are notoriously error prone, hard to debug and they really slow down the server. They are only supported as a last option for situations where you do not have control over the host configuration (read: really cheap hosting service providers) or if you have an application that relies on writing its own rewrite rules (which is an obvious security nightmare).
UPDATE:
Based on your many questions in the comments below (we see again how important it is to be precise in the question itself ;-) ) I add this variant implementing a different handling of path components:
RewriteEngine on
RewriteCond %{QUERY_STRING} (?:^|&)public_url=([^&]+)(?:$|&)
RewriteRule ^/?app/process\.php$ /api/%1 [R=301,QSD]
RewriteRule ^/?api/([^/]+)/?$ /app/process.php?public_url=$1 [END]
I am trying to get .htaccess to make the URL like this: example.com/app/api/acbd1234.
You don't do this in .htaccess. You change the URL in your application and then rewrite the new URL to the actual/old URL. (You only need to redirect this, if the old URLs have been indexed by search engines - but you need to watch for redirect loops.)
So, change the URL in your application to /app/api/acbd1234 and then rewrite this in .htaccess (which I assume in in your /app subdirectory). For example:
RewriteEngine On
# Rewrite new URL back to old
RewriteRule ^api/([^/]+)$ process.php?public_url=$1 [L]
You included a trailing slash in your earlier directive, but you omitted this in your example URL, so I've omitted it here also.
If you then need to also redirect the old URL for the sake of SEO, then you can implement a redirect before the internal rewrite:
RewriteEngine On
# Redirect old URL to new (if request by search engines or external links)
RewriteCond %{ENV:REDIRECT_STATUS} ^$
RewriteCond %{QUERY_STRING} (?:^|&)public_url=([^&]+)(?:$|&)
RewriteRule ^process\.php$ /app/api/%1? [R=302,L]
# Rewrite new URL back to old
RewriteRule ^api/([^/]+)$ process.php?public_url=$1 [L]
The check against REDIRECT_STATUS is to avoid a rewrite loop. ?: inside the parenthesised subpattern avoids the group being captured as a backreference.
Change the 302 (temporary) to 301 (permanent) only when you are sure it's working OK, to avoid erroneous redirects being cached by the browser.
I have an e-commerce site that resides in:
http://dev.gworks.mobi/
When a customer clicks on the signin link, the browser gets redirected to another domain, in order for authentication:
http://frock.gworks.mobi:8080/openam/XUI/#login/&goto=http%3A%2F%2Fdev.gworks.mobi%3A80%2Fcustomer%2Faccount%2Flogin%2Freferer%2FaHR0cDovL2Rldi5nd29ya3MubW9iaS8%2C%2F
I'm trying to rewrite http://dev.gworks.mobi/* to http://frock.gworks.mobi:8080/openam/*, without redirection.
I've tried this in the .htaccess of the dev.gworks.mobi site:
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{REQUEST_URI} ^/openam(.*)$ [NC]
RewriteRule ^(.*)$ http://frock.gworks.mobi:8080/$1 [P,L]
</IfModule>
But when I access http://dev.gworks.mobi/openam, it shows a 404 page not found page.
Can anyone help me to achieve my use case?
Try this:
RewriteEngine on
RewriteBase /
# Make sure it's not an actual file being accessed
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
# Match the host
RewriteCond %{HTTP_HOST} ^dev\.gworks\.mobi
# Rewrite the request if it starts with "openam"
RewriteRule ^openam(.*)$ http://frock.gworks.mobi:8080/$1 [L,QSA]
This will rewrite all the requests to dev.gworks.mobi/openam to frock.gworks.mobi:8080.
If you want to mask the URI in a way that it's not visible to the visitor that she's visiting the authentication app, you need to add a P flag. Please note that it needs Apache's mod_proxy module in place:
RewriteRule ^openam(.*)$ http://frock.gworks.mobi:8080/$1 [P,L,QSA]
Feel free to drop the L flag, if it's not the last rewrite rule. See RewriteRule Flags for more information.
The 404
If it's all in place and you're still getting a 404 error, make sure that the target URL is not throwing 404 errors in the first place.
Second, check if you're still getting the error with the correct referrer URI set. It might be designed in a way to throw a 404, if the referrer is not correctly set. If that's the case, which I suspect, you need to use the R flag and redirect instead of proxying the request.
Last thing that comes to my mind, some webapps are not built in a way to figure out the URI address. The host, as well as the port number, might be hard-coded somewhere in the config files. Make sure that the authentication app is able to be run from another URL without the need to edit the configs.
Test
You can test the rewriterule online:
I am trying to write a rewrite rule to change path slugs to query parameters. It is for a web service, and should only rewrite this rule if the host starts with api. There are two slugs that I am trying to capture and rewrite. The first is optional and is a version (i.e. v1.2) and the second is the service domain (i.e. customers, transactions, etc.).
http://api.domain.com/v2.5/customers should rewrite to ?version=2.5&domain=customers
I also want to support a default version so that
http://api.domain.com/customers should rewrite to ?version=&domain=customers
Here is what my .htaccess file looks like:
RewriteEngine On
RewriteBase /
RewriteCond %{HTTP_HOST} ^api\..*
RewriteRule ^v([\d\.]*)?\/?([^\/]*)$ ?version=$1&domain=$2
The first example above works fine, but I can't get the default version path to work. I have tried a ton of different things. I thought starting with ^.*v would help, but it didn't. Anybody know how to make it match when you don't know the starting characters?
Try:
RewriteCond %{HTTP_HOST} ^api\..*
RewriteCond %{QUERY_STRING} !version=
RewriteRule ^(v([\d\.]*))?\/?([^\/]*)$ /?version=$2&domain=$3 [L]
This makes the /v part optional:
/v2.5/foo -> /?version=2.5&domain=foo
/foo -> /?version=&domain=foo
/v/foo -> /?version=&domain=foo
I'm trying to set up a rewrite rule which will force all requests coming in on port 80 to use HTTPS by force.
I'm only getting my head around mod_rewrite but this is what i currently have;
RewriteCond ${lowercase:%{REQUEST_URI}} /securePath$
RewriteRule ^(.*)$ https://www.mydomain.com/$1
In the RewriteCond securePath is the requested path (not including my domain).The full URI would be www.mydoamin.com/securePath
In the ReWriteRule $1 is supposed to be the output from ${lowercase:%{REQUEST_URI}} in the RewriteCond
However when i restart my IHS server and attempt to hit the URL it isint forcing access through HTTPS. Any suggestions on what is wrong with these two lines?
Thanks
RewriteRule ^securePath/(.*)$ https://www.mydomain.com/$1 [NC,R=301,L]
Probably it's just you example being broken, but you are explicitly lowercasing the incoming request path and try to match that to "/securePath" which includes a capital letter. -That is never going to match.
An external server (I'll call it "sub.origin.edu") redirects all traffic to my webpage. I want to take all traffic from this host, and redirect it to a different site (which I'll call "http://foo.target.edu/board/").
My .htaccess file is:
RewriteEngine On
RewriteCond ${HTTP_HOST} sub\.origin\.edu [NC]
RewriteRule ^(.*)$ http://foo.target.edu/board/ [R=302]
This doesn't seem to be working. I've confirmed (using PHP) that the host is indeed sub.origin.edu, and the .htaccess file is in the right directory, but this rule just doesn't come into effect. Any suggestions? Thanks.
(If I remove the RewriteCond, the redirect happens, so I can confirm that everything but the rewrite condition is working.)
Use this:
RewriteEngine On
RewriteCond %{HTTP_HOST} sub\.origin\.edu [NC]
RewriteRule ^(.*)$ http://foo.target.edu/board$1 [R=302]
You used the wrong substition character ($ instead of %)
I found this question while trying to complete a re-derict for specific hostnames.
This link was of great help to understand how RewriteCond and RewriteRule work.
http://httpd.apache.org/docs/2.4/rewrite/intro.html
If sub.origin.edu is doing a 3xx redirect, then the browser will issue a new request to your server using your.server.edu as the host name. So this rule will never match that. If this is the case, there's no easy way to tell where the request was redirected from.
If they're using a CNAME, Femi has the correct answer.