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From Giovanni Lenzi <>
Subject Re: SmileUpps Features (Was: How do CouchApps fit into the CouchDB story? (Was: CouchDB Articles, Pills and Tutorials Ideas))
Date Tue, 05 May 2015 13:50:45 GMT
> CouchDB has no way of blocking requests to _changes that have no filter
Why? _rewrite handler is used to allow only requests complying with your
api, and therefore preventing requests to changes withouth a filter. You
can have a look to rewrites.json file for this.

I agree proxy is a best practice as a load balancer and to forward only
requests to allowed vhosts, like Smileupps, Iriscouch or Cloudant all are
doing, even if it's not strictly mandatory for security.

Anyway, I was not interested here, in raising this kind of technical
discussion. My starting e-mail only wanted to be constructive, by proposing
a way to push content around CouchDB and Couchapps, to help everyone
understand what they really can and cannot do.

2015-05-05 15:21 GMT+02:00 Jan Lehnardt <>:

> > On 05 May 2015, at 15:14, Giovanni Lenzi <> wrote:
> >
> >> That happens in a proxy outside of CouchDB then?
> >
> > No, it happens in the changes filter of the design document.
> You cannot force a client to use a filter. CouchDB has no way of blocking
> requests to _changes that have no filter parameter. If you are not doing
> that in a proxy, your system is not secure.
> Best
> Jan
> --
> Professional Support for Apache CouchDB:

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