.htaccess noob rewrite index.html - .htaccess

Question

Here's my .htaccess file
<IfModule mod_rewrite.c>
<IfModule mod_negotiation.c>
Options -MultiViews
</IfModule>
RewriteEngine On
# Redirect Trailing Slashes...
RewriteRule ^(.*)/$ /$1 [L,R=301]
# Handle Front Controller...
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^ index.php [L]
</IfModule>
I need this www.domainname.com/folder-name/
to rewrite/redirect to this
www.domainname.com/folder-name/index.html
without screwing up what's already in htaccess.
So i'm clear...when it's all said and done i want www.domainname.com/folder-name/ to display in the URL bar, but I want the content from index.html to be rendered.

Answer 1

You have a problem in that if you go to www.domainname.com/folder-name/, your first rewrite rule will redirect you to www.domainname.com/folder-name, removing the trailing slash. Assuming you haven't turned off DirectorySlash, mod_dir will redirect this back to www.domainname.com/folder-name/, which then triggers the rewrite rule, which triggers mod_dir, etc. If you've turned off DirectorySlash, that means you've exposed an information disclosure bug (or "feature") which will list the contents of the folder-name folder even if index.html exists.
So if you really want to be able to go to www.domainname.com/folder-name/ and not lose the trailing slash, then you need to add a condition to your first rule and then simply allow mod_dir to do its thing:
DirectoryIndex index.html
<IfModule mod_rewrite.c>
<IfModule mod_negotiation.c>
Options -MultiViews
</IfModule>
RewriteEngine On
# Redirect Trailing Slashes...
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)/$ /$1 [L,R=301]
# Handle Front Controller...
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^ index.php [L]
</IfModule>
If you've mistyped and you actually want all the trailing slashes to get removed including for folders, leaking the folder contents and all, then you've got to do a bunch of other things. Essentially, you have to do what mod_dir normall does for you anyways and make sure DirectorySlash is turned off (still dangerous, as it could expose the file listings of all your folders):
<IfModule mod_rewrite.c>
<IfModule mod_negotiation.c>
Options -MultiViews
</IfModule>
DirectorySlash Off
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} -d
RewriteCond %{DOCUMENT_ROOT}/$1/index.html -f
RewriteRule ^(.*[^/])$ /$1/index.html [L]
# Redirect Trailing Slashes...
RewriteRule ^(.*)/$ /$1 [L,R=301]
# Handle Front Controller...
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^ index.php [L]
</IfModule>