Options +FollowSymlinks
RewriteEngine On

# deal with admin first
RewriteCond %{REQUEST_URI} ^/e-itms/(admin)
RewriteRule ^admin/assets/(.*)$ backend/web/assets/$1 [L]
RewriteRule ^admin/css/(.*)$ backend/web/css/$1 [L]
RewriteRule ^admin/js/(.*)$ backend/web/js/$1 [L]
RewriteRule ^admin/theme/(.*)$ backend/web/theme/$1 [L]
RewriteRule ^admin/upload/(.*)$ backend/web/upload/$1 [L]
RewriteRule ^admin/fonts/(.*)$ backend/web/fonts/$1 [L]
RewriteRule ^admin/admin/(.*)$ backend/web/admin/$1 [L]
RewriteRule ^admin/adminassets/(.*)$ backend/web/adminassets/$1 [L]

RewriteCond %{REQUEST_URI} !^/e-itms/backend/web/(assets|css|js|theme|upload|admin|adminassets)/
RewriteCond %{REQUEST_URI} ^/e-itms/(admin)
RewriteRule ^.*$ backend/web/index.php [L]

#frontend
RewriteCond %{REQUEST_URI} ^/e-itms/(assets|css|theme|js|upload_doc)
RewriteRule ^assets/(.*)$ frontend/web/assets/$1 [L]
RewriteRule ^upload/(.*)$ frontend/web/upload/$1 [L]
RewriteRule ^css/(.*)$ frontend/web/css/$1 [L]
RewriteRule ^js/(.*)$ frontend/web/js/$1 [L]
RewriteRule ^theme/(.*)$ frontend/web/theme/$1 [L]
RewriteRule ^upload_doc/(.*)$ frontend/web/upload_doc/$1 [L]

RewriteCond %{REQUEST_URI} !^/e-itms/(frontend|backend)/web/(assets|css|js|theme|upload|upload_doc)/
RewriteCond %{REQUEST_URI} !index.php
RewriteCond %{REQUEST_FILENAME} !-f [OR]
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^.*$ frontend/web/index.php