I can't say for Couch, but Apache doesn't change the request bodies when proxying. So if you're proxying an application which doesn't know how to link to things and include the proxy prefix (/couch or whatever), it won't work right. When I proxy web applications, I always end up having to use something like mod_proxy_html to rewrite content in the page. Obviously this won't work for you, so you might have to change the internal JavaScript library to take your prefix into account.

Couch has permissions though I thought. Wouldn't that route be easier?



On Oct 27, 2010, at 8:34 AM, "Kevin R. Coombes" <[email protected] > wrote:

Hi,

For security reasons, our administrators want to put couchdb behind an Apache proxy. The setup right now basically provides an externally visible URL of the form
   http://proxymachine/couch/myapp
which maps to the internal URL
   http://couchmachine/myapp

Part of the security point is that the proxy only allows GET requests, while people behind the firewall can send PUT, POST, or DELETE to the internal machine. The extra "couch" path component was inserted on the proxy because it also works as a server for a variety of different applications with different stuff going on behind the firewall.

The problem, of course, is that the current configuration fails. My application relies on the "couch.js" script via a call like
   db = CouchDB("myapp")
which results in internal references that look like
   /myapp/_design/basic/_view/whatever
These end up returning a "404 Not Found" error because the proxy machine tries to access
   http://proxymachine/myapp/_design/basic/_view/whatever
Since the "couch" path component is missing, the proxy server does not rewrite the call, and so the request fails.

Is there a way to fix this so that the same javascript will run on both the proxy server and the internal server?

Thanks for any advice,
   Kevin

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