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Authenticate via HTTP Remote User

Project description

This module initialize the session by looking for the field HTTP_REMOTE_USER in the HEADER of the HTTP request and trying to bind the given value to a user. To be active, the module must be installed in the expected databases and loaded at startup; Add the –load parameter to the startup command:

--load=web,web_kanban,auth_from_http_remote_user, ...

If the field is found in the header and no user matches the given one, the system issue a login error page. (401 Unauthorized)

Use case.

The module allows integration with external security systems [1] that can pass along authentication of a user via Remote_User HTTP header field. In many cases, this is achieved via server like Apache HTTPD or nginx proxying Odoo.

How to test the module with Apache [2]

Apache can be used as a reverse proxy providing the authentication and adding the required field in the Http headers.

Install apache:

$ sudo apt-get install apache2

Define a new vhost to Apache by putting a new file in /etc/apache2/sites-available:

$ sudo vi  /etc/apache2/sites-available/MY_VHOST.com

with the following content:

<VirtualHost *:80>
  ServerName MY_VHOST.com
  ProxyRequests Off
  <Location />
    AuthType Basic
    AuthName "Test Odoo auth_from_http_remote_user"
    AuthBasicProvider file
    AuthUserFile /etc/apache2/MY_VHOST.htpasswd
    Require valid-user

    RewriteEngine On
    RewriteCond %{LA-U:REMOTE_USER} (.+)
    RewriteRule . - [E=RU:%1]
    RequestHeader set Remote-User "%{RU}e" env=RU
  </Location>

  RequestHeader unset Remote-User early
  ProxyPass / http://127.0.0.1:8069/  retry=10
  ProxyPassReverse  / http://127.0.0.1:8069/
  ProxyPreserveHost On
</VirtualHost>

Enable the required apache modules:

$ sudo a2enmod headers
$ sudo a2enmod proxy
$ sudo a2enmod rewrite
$ sudo a2enmod proxy_http

Enable your new vhost:

$ sudo a2ensite MY_VHOST.com

Create the htpassword file used by the configured basic authentication:

$ sudo htpasswd -cb /etc/apache2/MY_VHOST.htpasswd admin admin
$ sudo htpasswd -b /etc/apache2/MY_VHOST.htpasswd demo demo

For local test, add the MY_VHOST.com in your /etc/vhosts file.

Finally reload the configuration:

$ sudo service apache2 reload

Open your browser and go to MY_VHOST.com. If everything is well configured, you are prompted for a login and password outside Odoo and are automatically logged in the system.

Contributors

  • Laurent Mignon

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