htacess redirect all pages to home except admin directory

Question

I have the following code my htaccess file:

RewriteCond %{REQUEST_URI} !^/admin/
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !/admin
RewriteCond %{REQUEST_URI} !\.(?:jpe?g|gif|bmp|png|tiff|css|js)$ [NC]
RewriteRule ^(.*)$ /index.php [L]

I know coding but not good with regex and I didn't play with htaccess file much before. I found this answer and also this one but however they didn't meet my requirements.

I am using the directory names as permlinks. For example, if user enters www.mydomaincom/about a JavaScript code extracts the directory name, compares with the database and polls a page. It also works when the address is written with a trailing slash like www.mydomaincom/about/ . But there is a problem with this notation.

The wierd thing is, the page is trying to read the html data from index.php which is AOK. But... The elements which need sources like <img>, <style>, <script> or style properties which need source directories, are trying to seek for sources from about/ directory as if it does exist.

I am searching for a htaccess solution which will make www.mydomaincom/about/ notation behave the same as www.mydomaincom/about without affecting the source attributes or properties.

Answer 1

You have too many lines in your code:

RewriteCond %{REQUEST_URI} !^/admin/
RewriteCond %{REQUEST_URI} !/admin

These seeingly do the same thing, but they dont.
The first one does "If it does not start ( ^ ) with /admin " The second does "if it is literally not /admin "

Both are not what you want:

RewriteCond %{REQUEST_URI} !^/admin

This does "if it does not start with /admin ". This also includes /admin/ , as that starts with /admin

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Second weird combo is this:

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_URI} !\.(?:jpe?g|gif|bmp|png|tiff|css|js)$ [NC]

The first one is "if it is not a file"
The second one you do "if it is not a css,js,png,etc"
That last line isn't needed, as the filetypes are files, so you check the same thing twice.

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Third, you might want to pass the url to your index.php. Shortend and passing it to the index.php looks like this:

RewriteCond %{REQUEST_URI} !^/admin
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ /index.php?url=$1 [L]