问题
Recently I had to migrate somesite which was nearly 15 years old, consider the new url is
https://mynew.domain.com
and the old site was https://myold.domain.com (Internal IP : 192.168.1.15, which is not available in public domain)
In old site it was having directory called "sitefiles", in which many sub folders and files like images, files etc
So what I want to achieve is suppose if user hits url on browser which was file request with white listed extensions such (.jpg , .jpeg, .png, .pdf, .doc, .docx, .gif, .svg) say for example, then serve those requests from internal IP
https://mynew.domain.com/sitefiles/events/somedirectory/somefile.jpg
https://mynew.domain.com/sitefiles/somedoc.jpg
Please note sitefiles directory is quite big, and its nested, I don't know how to go about this, currently what I tried is
ProxyPass /sitefiles/ http://192.168.1.15/sitefiles
ProxyPassReverse /sitefiles/ http://192.168.1.15/sitefiles
But
- how do I whitelist is really the request is for whitelisted files ?
- absolute path to file is really not predictable for me, can we pass something like
ProxyPass %{REQUEST_URI} http://192.168.1.15/$1
I also tried, below one which gives me Bad Request your browser sent a request that this server could not understand
RewriteCond %{REQUEST_URI} ^/sitefiles
RewriteRule ^\/?(.*)$ http://192.168.1.15/$1 [P,L]
Above same one if I modify [P,L] to [R=301,L] it properly redirecting to other server, not sure why proxy is not working
回答1:
To allow certain whitelisted extensions you may use mod_rewrite rule instead of ProxyPass:
RewriteEngine On
RewriteRule ^sitefiles/.+\.(?:jpe?g|png|pdf|docx?|gif|svg|pptx?)$ http://192.168.1.15/$0 [L,NC,P]
P flag in this rule does what ProxyPass does for you.
This assumes mod_proxy is properly setup in Apache config.
来源：https://stackoverflow.com/questions/56679932/apache-proxy-rewrite-setup-for-specific-file-types-inside-sub-directory