Proxy pass-through authentication

'''''''''''''''''''''''''''''''''

In a proxy pass-through authentication setup, RhodeCode reads the user name

from the ``X-Forwarded-User`` request header, which should be configured to be

sent by the reverse-proxy server.

After setting up your proxy solution (see `Apache virtual host reverse proxy example`_,

`Apache as subdirectory`_ or `Nginx virtual host example`_), you'd need to

configure the authentication and add the username in a request header named

``X-Forwarded-User``.

For example, the following config section for Apache sets a subdirectory in a

reverse-proxy setup with basic auth::

    <Location /<someprefix> >

      ProxyPass http://127.0.0.1:5000/<someprefix>

      ProxyPassReverse http://127.0.0.1:5000/<someprefix>

      SetEnvIf X-Url-Scheme https HTTPS=1

      AuthType Basic

      AuthName "RhodeCode authentication"

      AuthUserFile /home/web/rhodecode/.htpasswd

      require valid-user

      RequestHeader unset X-Forwarded-User

      RewriteEngine On

      RewriteCond %{LA-U:REMOTE_USER} (.+)

      RewriteRule .* - [E=RU:%1]

      RequestHeader set X-Forwarded-User %{RU}e

    </Location> 

In order for RhodeCode to start using the forwarded username, you should set

the following in the [app:main] section of your .ini file::

    proxypass_auth_enabled = true

.. note::

   If you enable proxy pass-through authentication, make sure your server is

   only accessible through the proxy. Otherwise, any client would be able to

   forge the authentication header and could effectively become authenticated

   using any account of their liking.

Hook management

---------------

Hooks can be managed in similar way to this used in .hgrc files.

To access hooks setting click `advanced setup` on Hooks section of Mercurial

Settings in Admin. 

There are 4 built in hooks that cannot be changed (only enable/disable by

checkboxes on previos section).

To add another custom hook simply fill in first section with 

<name>.<hook_type> and the second one with hook path. Example hooks

can be found at *rhodecode.lib.hooks*. 

Setting Up Celery

-----------------

Since version 1.1 celery is configured by the rhodecode ini configuration files.

Simply set use_celery=true in the ini file then add / change the configuration 

variables inside the ini file.

Remember that the ini files use the format with '.' not with '_' like celery.

So for example setting `BROKER_HOST` in celery means setting `broker.host` in

the config file.

In order to start using celery run::

 paster celeryd <configfile.ini>

.. note::

   Make sure you run this command from the same virtualenv, and with the same 

   user that rhodecode runs.

HTTPS support

-------------

There are two ways to enable https:

- Set HTTP_X_URL_SCHEME in your http server headers, than rhodecode will

  recognize this headers and make proper https redirections

- Alternatively, change the `force_https = true` flag in the ini configuration 

  to force using https, no headers are needed than to enable https

Nginx virtual host example

--------------------------

Sample config for nginx using proxy::

    server {

       listen          80;

       server_name     hg.myserver.com;

       access_log      /var/log/nginx/rhodecode.access.log;

       error_log       /var/log/nginx/rhodecode.error.log;

       location / {

               }

               include         /etc/nginx/proxy.conf;  

       }

    }  

Here's the proxy.conf. It's tuned so it will not timeout on long

pushes or large pushes::

    proxy_redirect              off;

    proxy_set_header            Host $host;

    proxy_set_header            X-Host $http_host;

    proxy_set_header            X-Real-IP $remote_addr;

    proxy_set_header            X-Forwarded-For $proxy_add_x_forwarded_for;

    proxy_set_header            Proxy-host $proxy_host;

    client_max_body_size        400m;

    client_body_buffer_size     128k;

    proxy_buffering             off;

    proxy_connect_timeout       7200;

    proxy_send_timeout          7200;

    proxy_read_timeout          7200;

    proxy_buffers               8 32k;

Also, when using root path with nginx you might set the static files to false

in the production.ini file::

    [app:main]

      use = egg:rhodecode

      full_stack = true

      static_files = false

      lang=en

      cache_dir = %(here)s/data

In order to not have the statics served by the application. This improves speed.

Apache virtual host reverse proxy example

-----------------------------------------

Here is a sample configuration file for apache using proxy::

    <VirtualHost *:80>

            ServerName hg.myserver.com

            ServerAlias hg.myserver.com

            <Proxy *>

              Order allow,deny

              Allow from all

            </Proxy>

            #important !

            #Directive to properly generate url (clone url) for pylons

            ProxyPreserveHost On

            #rhodecode instance

            ProxyPass / http://127.0.0.1:5000/

            ProxyPassReverse / http://127.0.0.1:5000/

            #to enable https use line below

            #SetEnvIf X-Url-Scheme https HTTPS=1

    </VirtualHost> 

Additional tutorial

http://wiki.pylonshq.com/display/pylonscookbook/Apache+as+a+reverse+proxy+for+Pylons

Apache as subdirectory

----------------------

Apache subdirectory part::

    <Location /<someprefix> >

      ProxyPass http://127.0.0.1:5000/<someprefix>

      ProxyPassReverse http://127.0.0.1:5000/<someprefix>

      SetEnvIf X-Url-Scheme https HTTPS=1

    </Location> 

Besides the regular apache setup you will need to add the following line

into [app:main] section of your .ini file::

    filter-with = proxy-prefix

Add the following at the end of the .ini file::

    [filter:proxy-prefix]

    use = egg:PasteDeploy#prefix

    prefix = /<someprefix> 

then change <someprefix> into your choosen prefix

Apache's WSGI config

--------------------

Alternatively, RhodeCode can be set up with Apache under mod_wsgi. For

that, you'll need to:

- Install mod_wsgi. If using a Debian-based distro, you can install

  the package libapache2-mod-wsgi::

    aptitude install libapache2-mod-wsgi

- Enable mod_wsgi::

    a2enmod wsgi