I have an html website with subdirectories.

What I need is:

1. Access subdirectories with no trailing slash ie. (example.com/blog) not (example.com/blog/)
2. If index.html is absent under certain subdir, it should look for index.php instead.

/blog/ page is a WordPress page with its own .htaccess.

Here's my current root .htaccess:

RewriteEngine on
ErrorDocument 404 /error/error404.html


DirectorySlash Off
RewriteCond %{DOCUMENT_ROOT}%{REQUEST_URI}/index.html -f
RewriteRule ^(.*)$ /$1/index.html [L]

Wordpress .htaccess at /blog/.htaccess:

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteBase /blog/
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /blog/index.php [L]
</IfModule>

(This is autogenerated by Wordpress)

As for now, html files can be access under certain subdir but not with index.php. What should I do?

CodePudding user response：

The DirectoryIndex document lists the files to try to serve when requesting a directory. You don't need mod_rewrite for this.

However, to use the DirectoryIndex when you set DirectorySlash Off you need to manually append the trailing to the directory with an internal rewrite, otherwise, a 403 will be triggered even when that directory contains a DirectoryIndex document. (It is for this reason that mod_autoindex needs to be disabled to prevent accidental disclosure of information - the presence of a DirectoryIndex document is not sufficient to prevent the auto-generated directory listings when DirectorySlash Off is set.)

For example:

# Disable directory listings (mod_autoindex)
Options -Indexes

ErrorDocument 404 /error/error404.html

# Look for index.html then index.php in the directory being requested
DirectoryIndex index.html index.php

# Prevent mod_dir appending the trailing slash
DirectorySlash Off

RewriteEngine On

# If request a directory without a trailing slash then rewrite to append it
# This allows DirectoryIndex to work as intended
# - exclude the document root
RewriteCond $1 !/$
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule (. ) $1/ [L]

Make sure the browser cache is cleared. mod_dir issues a 301 (permanent) redirect to append the trailing slash.

UPDATE:

/blog/ page is a WordPress page with its own .htaccess.

The problem with this is that when the rewrite engine is enabled in the subdirectory then it completely overrides the mod_rewrite directives in the parent config, so the slash is not appended and the directory index is not triggered (and the mod_rewrite directives are not processed because of the missing slash). (This feels a bit chicken and egg.)

The only way I have successfully resolved this is to move the WordPress directives into the parent config (making the necessary changes) and remove /blog/.htaccess altogether.

For example, append the following modified WordPress directives after the directives above:

# WordPress
RewriteRule ^ - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteRule ^blog/index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^blog/. /blog/index.php [L]