How to set up proxy in .htaccess

问题:

The Apache documentation states that RewriteRule and the should be put in the server configuration, but they can be put in htaccess because of shared hosting situations. I am in such a situation.

I am trying to set up a transparent proxy:

 RewriteEngine On
 RewriteCond %{REQUEST_URI} ^/foo [OR]
 RewriteCond %{REQUEST_URI} ^/bar
 RewriteRule ^(.*)$ http://example.com/$1 [P]

This is working fine...except for redirects (like if /foo redirects to /bar). Redirects go back to example.com, not my server.

I understand the the ProxyPassReverse directive will solve this, but I get an "Internal Server Error" page when I add this to .htaccess

Unlike the Rewrite directives, ProxyPassReverse will not work in htaccess.

How do I set up a transparent proxy in shared hosting situation, or is this not possible?

(This seems reasonable, since Rewrite already gets 80% of the way there, and having a transparent proxy in one htaccess would not interfere with having it in another.)

回答1:

Unfortunately, I'm fairly sure what you want to do isn't possible: I'm trying to do the exact same thing! From my research, I'm fairly confident it's not possible.

Put simply, you need to use ProxyPassReverse, which is only available at a VirtualHost level (or similar); not a htaccess level.

Edit: the only way I have achieved this is by also configuring the responding server/application to know it's behind a proxy, and serving pages appropriately. That is, I use .htaccess to redirect to another server as follows:

  RewriteEngine on
  RewriteRule  (.*)  http://localhost:8080/$1  [P,L] 

Then on the application server -- in this case, a JIRA installation -- I configured the Java Tomcat/Catalina appropriately to serve pages with the proxied information:

 proxyName="my.public.address.com"
 proxyPort="80"

However, that's not completely transparent; the app server needs to serve pages in a proxied manner. It might be of some use, though.