How to prevent rewrite .htaccess file conflict problem - apache

RewriteEngine on
RewriteRule ^([^/\.]+)/?$ category.php?slug=$1
RewriteRule ^([^/\.]+)/([^/\.]+)$ product-details.php?slug1=$1&slug=$2
RewriteRule ^([^/\.]+)/?$ infrastructure-details.php?slug=$1
what I have already tried
This is my htaccess file. problem is when I am trying to execute (infrastructure-details.php?slug=$1) its move to (category.php?slug=$1) conflict with first rule of htaccess.
I tired multiple rewrite methods but its not working. Please help to solve this issue.

localhost/project/category.php?slug=pump, localhost/project/infrastructure-details.php?slug=paint second url i want to be-> localhost/project/paint both page is different. can you please specify how to write rules for this different pages.
There is no discernible pattern that differentiates these two URLs so the only way to implement these two rewrites is to hardcode them. For example:
RewriteRule ^pump$ category.php?slug=$0 [L]
RewriteRule ^paint$ infrastructure-details.php?slug=$0 [L]
Where the $0 backreference in the substitution string contains the entire match by the RewriteRule pattern (just saves some repetition).
If you need a more general solution (as your directives suggest) then there needs to be a discernible pattern in the URL that differentiates URLs that should be rewritten to category.php and infrastructure-details.php respectively.
I'm assuming your .htaccess file, and other files, are is inside the /project subdirectory.
RewriteRule ^([^/\.]+)/?$ category.php?slug=$1
RewriteRule ^([^/\.]+)/([^/\.]+)$ product-details.php?slug1=$1&slug=$2
RewriteRule ^([^/\.]+)/?$ infrastructure-details.php?slug=$1
Rule #1 and #3 conflict - they use exactly the same pattern (regex) to match against the requested URL. The first rule is always going to "win" and rewrite the request before rule#3 is able to process the request, so rule#3 never matches.
To write a generic rule like this there needs to be a discernible difference between the URL types that you can match with a pattern/regex. For example:
/category/pump
/infrastructure/paint
And then you can construct rules...
Options -MultiViews
RewriteRule ^category/([^/]+)$ category.php?slug=$1 [L]
RewriteRule ^infrastructure/([^/]+)$ infrastructure-details.php?slug=$1 [L]
Note that the order of these directives can be important. More specific rules need to be before more generalised rules.

Options -MultiViews
RewriteEngine on
RewriteRule ^infrastructure/([^/]+)$ infrastructure-details.php?slug=$1 [L]
RewriteRule ^([^/\.]+)/?$ category.php?slug=$1 [L]
RewriteRule ^([^/\.]+)/([^/\.]+)$ product-details.php?slug1=$1&slug=$2 [L]
This is work fine for me. (infrastructure-details.php?slug=$1 [L]) put on top.

Related

.htaccess with multiple slashes on the condition

I am trying to implement clean URL with the help of .htaccess in my project.
I got a 404 when i implimented a condition with multiple condition strings like keyword1/keyword2/param
all other conditions like RewriteRule ^home index.php [L,NC] works fine
My file structure be like
/subdirectory/
|-.htaccess
|-index.php
|-edit-user.php
|-new-user.php
my desired clean url is
mysite.com/subdirectory/user/edit/10
and it should translated into
mysite.com/subdirectory/edit-user.php?id=10
Some of the closest solutions i tried so far (but no luck)
RewriteRule (.*)/user/edit/([0-9]+)$ edit-user?id=$1 [L,NC]
RewriteBase /user/
RewriteRule ^user\/edit\/([0-9]+)$ edit-user.php?id=$1 [L,NC]
Any suggestions are highly appreciated.
RewriteRule (.*)/user/edit/([0-9]+)$ edit-user?id=$1 [L,NC]
Since the .htaccess file is inside the /subdirectory then you would need to write the directive like this:
RewriteRule ^user/edit/(\d+)$ edit-user.php?id=$1 [L]
And remove any RewriteBase directive.
\d is simply a shorthand character class for [0-9].
The RewriteRule pattern matches against the relative URL-path (no slash prefix). That is relative to the directory that contains the .htaccess file. You were also missing the .php extension on the filename you are rewriting to. You do not need the NC flag unless you really do want to allowed a mixed-case request, but that opens you up to potential "duplicate content" which would need to be resolved in other ways.
RewriteBase /user/
RewriteRule ^user\/edit\/([0-9]+)$ edit-user.php?id=$1 [L,NC]
Actually, you are very close here, but the RewriteBase directive would have caused this to fail. The sole purpose of the RewriteBase directive is to override the directory-prefix that is added back on relative path substitutions. The RewriteBase directive sets the "URL-path" (as opposed to filesystem path) that is added back.
So, in this example, RewriteBase /user/ would result in the request being rewritten to /user/edit-user.php?id=10 (relative to the root), which is clearly wrong based on the file structure you posted.
Without the RewriteBase defined then the directory-prefix is added back, which results in the rewrite being relative to the directory containing the .htaccess file.
Also, there's no need to backslash-escape slashes since there are no slash delimiters to the regex. (The spaces that surround the argument are the delimiters.)
all other conditions like RewriteRule ^home index.php [L,NC] works fine
Careful with this, as this will also match /homeanything and /home/something etc.
Finally found the issue.
My .htaccess was
RewriteRule ^home index.php [L,NC] RewriteRule ^([^\.]+)$ $1.php [NC]
RewriteRule ^user/edit/(\d+)$ edit-user?id=$1 [L]
(1st line to add .php to anything that comes in, and the 2nd line to convert the desired URL I needed)
What happened here is, when I try to access the URL mysite.com/subdirectory/user/edit/10
The first rule converts that into mysite.com/subdirectory/user/edit/10.php instead of mysite.com/subdirectory/edit-user.php?id=10
This causes the 404 error.
Now I changed the order and the new .htaccess file looks like,
RewriteRule ^admin/edit/(\d+)$ edit-admin.php?aid=$1 [L]
RewriteRule ^([^\.]+)$ $1.php [NC]
So, when a URL comes in, it will check into all other rules before its matches against the last rule(which appends .php) and translate into the desired result.
Lesson learned: Order matters a lot in .htaccess

How to add "everything else" rule to mod_rewrite

How can I make mod_rewrite redirect to a certain page or probably just throw 404 if no other rules have been satisfied? Here's what I have in my .htaccess file:
RewriteEngine on
RewriteRule ^\. / [F,QSA,L]
RewriteRule ^3rdparty(/.*)$ / [F,QSA,L]
RewriteCond %{REQUEST_FILENAME} -f
RewriteRule ^((images|upload)/.+|style.css)$ $1 [L]
RewriteRule ^$ special [QSA]
RewriteRule ^(special|ready|building|feedback)/?$ $1.php [QSA,L]
RewriteRule ^(ready|building)/(\d+)/?$ show_property.php?type=$1&property_id=$2 [QSA,L]
RewriteRule . error.php?code=404 [QSA,L]
This is supposed, among other things, to send user to error.php if he tries to access anything that was not explicitly specified here (by the way, what is the proper way to throw 404?). However, instead it sends user from every page to error.php. If I remove the last rule, everything else works.
What am I doing wrong?
What is happening is that when you are doing a rewrite, you then send the user to the new URL, where these rewrite rules are then evaluated again. Eventually no other redirectoin rules will be triggered and it will get to the final rule and always redirect to the error.php page.
So you need to put some rewrite conditions in place to make this not happen.
The rewrite engine loops, so you need to pasthrough successful rewrites before finally rewriting to error.php. Maybe something like:
RewriteCond %{REQUEST_URI} !^/$
RewriteCond %{REQUEST_URI} !^/(special|ready|building|feedback|show_property)\.php
RewriteCond %{REQUEST_URI} !^/((images|upload)/.+|style.css)$
RewriteRule ^ error.php?code=404 [QSA,L,R=404]
Each condition makes sure the URI isn't one of the ones your other rules have rewritten to.
The R=404 will redirect to the error.php page as a "404 Not Found".
Unfortunatelly, it didn't work - it allows access to all files on the server (presumably because all conditions need to be satisfied). I tried an alternate solution:
Something else must be slipping through, eventhough when I tested your rules plus these at the end in a blank htaccess file, it seems to work. Something else you can try which is a little less nice but since you don't actually redirect the browser anywhere, it would be hidden from clients.
You have a QSA flag at the end of all your rules, you could add a unique param to the query string after you've applied a rule, then just check against that. Example:
RewriteCond %{REQUEST_FILENAME} -f
RewriteRule ^((images|upload)/.+|style.css)$ $1?_ok [L,QSA]
then at the end:
RewriteCond %{QUERY_STRING} !_ok
RewriteRule ^ error.php?code=404&_ok [QSA,L,R=404]
In theory if none of the rules are matched (and the requested URL does not exist), it's already a 404. So I think the simplest solution is to use an ErrorDocument, then rewrite it:
RewriteEngine On
ErrorDocument 404 /404.php
RewriteRule ^404.php$ error.php?code=404 [L]
# All your other rules here...
You can do the same for any other HTTP error code.
The problem here is that after the mod_rewrite finishes rewriting the URL, it is resubmitted to the mod_rewrite for another pass. So, the [L] flag only makes the rule last for the current pass. As much better explained in this question, mod_rewrite starting from Apache version 2.3.9, now supports another flag - [END], that makes the current mod_rewrite pass the last one. For Apache 2.2 a number of solutions are offered, but since one of them was a bit clumsy and another didn't work, my current solution is to add another two rules that allow a specific set of files to be accessed while sending 404 for everything else:
RewriteRule ^((images|upload)/.+|style.css|(special|ready|building|feedback|property).php)$ - [QSA,L]
RewriteRule .* - [QSA,L,R=404]
I think your last rule should be
RewriteRule ^(.*)$ error.php?code=404&query=$1 [QSA,L]
You could leave out the parenthesis and the $1 parameter, but maybe it's useful to know, what the user tried to achieve.
Hope, this does the trick!

htaccess is not working in two almost identical cases

This rewriting rule is not working (the id is empty after redirecting):
RewriteRule ^album/([0-9]+)$ album.php?id=$1 [L,QSA]
while this one does:
RewriteRule ^album([0-9]+)$ album.php?id=$1 [L,QSA]
The removed slash is the only difference.
This has to do with multiviews. Multiviews bypasses you rewrite rules, because it matched /album/... to the existing file album.php
You can prevent this by adding Options -MultiViews to your htaccess.
This has to do with the way mod_rewrite rules in .htaccess files are processed. Basically, the input to the RewriteRule will only be the "file" portion of the path, so when the URL is .../album/42, the RewriteRule will be matching against 42.
The solution is to use a RewriteCondition as well. Something like:
RewriteCond %{REQUEST_URI} (.*)/album/([0-9]+)$
RewriteRule ^ %1/album.php?id=%2 [L,QSA]

Apache mod_rewrite issue

I am trying to send every request to www.example.com/user/ to www.example.com/user.php?id=0 using this
RewriteRule ^user/$ user.php?id=0
Basically, if someone is accessing www.example.com/user/ with no user id, the site will default to id = 0.
However, when I type www.example.com/user/ Apache seems to simply serve the user.php file, completely ignoring the RewriteRule. Any idea on why this is happening?
Thank you.
I should mention that this only happens if I use the same word in the URL as the php file's name. For example, if I were to use
RewriteRule ^yes/$ user.php?id=0
Going to www.example.com/yes/ would apply the RewriteRule just fine.
So it seems that Apache looks for a file with that name and ignores the RewriteRule.
And no, adding a [L] flag did not help.
Here's my .htaccess:
RewriteEngine On
RewriteRule ^user/$ user.php?id=0
RewriteRule ^user/([0-9]+)$ user.php?id=$1
try this:
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^user/$ user.php?id=0 [L,NC,QSA]
RewriteRule ^user/([0-9]+)/?$ user.php?id=$1 [L,NC,QSA]
The [L] flag causes mod_rewrite to stop processing the rule set. In most contexts, this means that if the rule matches, no further rules will be processed. This corresponds to the last command in Perl, or the break command in C. Use this flag to indicate that the current rule should be applied immediately without considering further rules.
from: http://httpd.apache.org/docs/current/rewrite/flags.html#flag_l
I think your rewrite rules are in the wrong order, and you're not using the [L] flag to tell apache not to run any more rules when a rule's been matched. Also you could use the + operator instead of * to match at least one digit in your second rule:
RewriteRule ^user/$ user.php?id=0 [L]
RewriteRule ^user/([0-9]+)$ user.php?id=$1 [L]

Apache mod_rewrite going berserk - redirecting where it shouldn't

I have a script that echoes a meta redirect to a page called account_management.php5, but for some reason it automatically redirects from there to index.php5. My .htaccess file handles a couple of redirects automatically, for example index.html|php5 to the domain root, and that's the only place I can see this problem originating, but I don't understand why. This is my .htaccess file:
RewriteEngine On
#remember to change this to aromaclear
RewriteCond %{HTTP_HOST} !^sinaesthesia\.co.uk$ [NC]
RewriteRule ^(.*)$ http://sinaesthesia.co.uk/$1 [R=301,L]
RewriteCond %{THE_REQUEST} ^GET\ .*/index\.(php5|html)\ HTTP
RewriteRule ^(.*)index\.(php5|html)$ /$1 [R=301,L]
#translate any .html ending into .php5
RewriteRule ^(.*)\.html$ /$1\.php5
#change / for ?
RewriteRule ^(.*)\.html/(.*)$ /$1\.html?$2
#strip .html from search res page
RewriteRule ^(.*)search/(.*)$ /$1search_results\.html/search=$2
#translate product details link from search res page
RewriteRule ^products/(.*)/(.*)/(.*)$ /product_details.php5?category=$1&title=$2&id=$3 [L]
#Translate products/psorisis/chamomile-skin-cream-P[x] to productview.php5?id=1
RewriteRule ^products/.*-P([0-9]+) /productview.php5?id=$1 [L]
Wrong:
RewriteRule ^(.*)\.html$ /$1\.php5
Right:
RewriteRule ^(.*)\.html$ /$1.php5
Righter:
RewriteRule ^(.*)\.html$ /$1.php5 [QSA]
This same mistake of escaping special chars in the second param of RewriteRule is happening in other rules too, I don't know if apache will handle it, but I know you don't need it because second param is not a regexp.
Never compare to %{THE_REQUEST}, thats a weird thing to do, you don't need that. Moreover, this condition is fine without it. Just put there:
RewriteRule ^(.*)index\.(php5|html)$ $1 [R=301,QSA,L]
Now look at it:
RewriteRule ^(.*)\.html/(.*)$ /$1.html?$2
First, you are still accepting that there are references to .html files, just after trying to translate all .html to .php5, there's something wrong here.
Moreover, you are defineing as QueryString something that was originally a file path, and are not even putting it in a key. It won't work, it need some more treatment.
#strip .html from search res page
RewriteRule ^(.*)search/(.*)$ /$1search_results.html/search=$2
Wasn't it supposed to strip the .html? Because it is actually putting a .html there. Maybe as it is not an [L] it get fixed in the next loop, but you could just get all fixed right here.
#translate product details link from search res page
RewriteRule ^products/(.*)/(.*)/(.*)$ /product_details.php5?category=$1&title=$2&id=$3 [L]
This one full of .* is potentially unstable, specially delimitating the end. You should do this:
RewriteRule ^products/([^/]*)/([^/]*)/([^/]*) /product_details.php5?category=$1&title=$2&id=$3 [L]
# or:
RewriteRule ^products/(.*?)/(.*?)/([^/]*) /product_details.php5?category=$1&title=$2&id=$3 [L]
The last one looks correct, except that you should strip the special character that may be faced as a range delimiter, the "-". I don't think it work after a *, but just to be sure and correct the syntax:
RewriteRule ^products/.*\-P([0-9]+) /productview.php5?id=$1 [L]
Add this just after RewriteEngine on
RewriteLogLevel 9
RewriteLog /tmp/rw.log
Then restart the webserver. It should help you debug the problem.
Edit: Sorry, I didn't notice the .htaccess above. This will only work from the main apache configuration file.