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From Michael Ferjancic <>
Subject Re: proxy authentication handler
Date Thu, 23 Feb 2012 19:02:20 GMT
Hi Paul, 

thanks for the quick answer. Exactly that is what i want to do - i would like to use some
nodejs-stuff in front to do the authentication and after a successful auth-attempt  "trust"
the session to couchdb (=create the couch cookie)....


Am 23.02.2012 um 19:54 schrieb Paul Davis:

> On Mon, Feb 13, 2012 at 3:02 PM, Michael Ferjancic
> <> wrote:
>> Hi guys,
>> I have to admit that i am fairly new to this topic, especially new to erlang. Currently
i am trying to play around with the various authentication handlers - goal is to have a working
"delegated authentication" on facebook, twitter and such.
>> 1) as far as i understood the oAuth implementation of couchdb is just the opposite
i need - you can use that to create tokens for couch-users, but not to accept twitter accessTokens/secrets
and map that to a couch user
>> 2) i found exactly what i need in datacouch - authentication against twitter with
nodejs, and after that getting the plaintext password from a private couch and use it with
_session-API to create a couch cookie.
>> 3) i modified the sample a little bit and used everyauth to handle the delegated
authentication. I map the userinfos i get from facebook etc. against user profiles in a private
db, which also contains the user passwords (unfortunately still in plaintext). Works perfectly,
>> Now i am trying to avoid storing the plaintext passwords. I heard about to use proxy_authentification_handler,
but it seems i am too stupid to use it. I made the (as far as i understood) correct entries
in couch_httpd_auth
>> couch_httpd_auth        auth_cache_size
>> 50
>> x
>> authentication_db
>> _users
>> x
>> authentication_redirect
>> /_utils/session.html
>> x
>> require_valid_user
>> false
>> x
>> secret
>> xxxxxxxxxxxx
>> x
>> timeout
>> 43200
>> x
>> x_auth_roles
>> roles
>> x
>> x_auth_token
>> token
>> x
>> x_auth_username
>> uname
>> and also in httpd
>> httpd   allow_jsonp
>> true
>> x
>> authentication_handlers
>> {couch_httpd_auth, proxy_authentification_handler},{couch_httpd_auth, cookie_authentication_handler},
{couch_httpd_auth, default_authentication_handler}
>> x
>> bind_address
>> x
>> default_handler
>> {couch_httpd_db, handle_request}
>> x
>> port
>> 5984
>> x
>> secure_rewrites
>> false
>> x
>> vhost_global_handlers
>> _utils, _uuids, _session, _oauth, _users
>> When i now do a GET on http://localhost:5984/_utils/config.html?uname=user1&roles=user
that seems to doesn't lead to anything...
>> Anybody ever got that thing running? Am i missing something? Or is there any chance
to implement a custom authentication handler without coding erlang?
>> Thanks for your help
>> Michael
> I'm not super familiar with this code but AFAIK, the proxy auth module
> is for accepting auth done by a proxy (as opposed to proxying auth to
> an external service).
> So for instance, nginx could auth requests to some LDAP server and
> then couchdb would trust nginx's auth passed forward. Theoretically if
> you have your auth stuff working infront of couch you could do the
> same thing but I'm not familiar enough to be much more help on that.

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