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From Suraj Kumar <>
Subject LDAP Auth strategy using nginx
Date Tue, 21 Jan 2014 11:12:56 GMT

We use nginx as a load balancing proxy in front of couchdb and let our
clients directly talk REST with couchdb. We have a company standard "LDAP"
server to auth against. I've tried (and given up) setting up the ldap auth
plugin for couchdb. Here is our alternate strategy to get things going:

1. Clients will attempt auth on a specific route (ex: /auth). This is
routed by nginx to a middleware which, after auth against LDAP, may insert
/ update the couchdb _users DB with similar user account.
2. The middle ware also returns a "session" cookie that is nothing but
crypt("username:password", "myserversecret").
3. On nginx side, we write a 'lua' module that decrypts the session cookie
using the same shared  "myserversecret" password. This module will fill in
the http basic Authorization header. Since nginx is routing to couchDB too,
I expect auth against couch to work transparently.

What do you think about this approach?



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