https://dylanninin.com/blog/2013/01/21/svn_httpd_ldap.html

Subversion Architecture

HTTP

To network your repository over HTTP, you basically need four components, available in two packages. You’ll need Apache httpd 2.0 or newer, the mod_dav DAV module that comes with it, Subversion, and the mod_dav_svn filesystem provider module distributed with Subversion. Once you have all of those components, the process of networking your repository is as simple as:

• Getting httpd up and running with the mod_dav module
• Installing the mod_dav_svn backend to mod_dav, which uses Subversion’s libraries to access the repository
• Configuring your httpd.conffile to export (or expose) the repository

mod_dav_svn

mod_dav_svn Configuration Directives — Apache configuration directives for serving Subversion repositories through the Apache HTTP Server.

mod_authz_svn

mod_authz_svn Configuration Directives — Apache configuration directives for configuring path-based authorization for Subversion repositories served through the Apache HTTP Server.

LDAP

This module provides authentication front-ends such as mod_auth_basic to authenticate users through an ldap directory.

mod_authnz_ldap supports the following features:

• Known to support the OpenLDAP SDK (both 1.x and 2.x), Novell LDAP SDK and the iPlanet (Netscape) SDK.
• Complex authorization policies can be implemented by representing the policy with LDAP filters.
• Uses extensive caching of LDAP operations via mod_ldap.
• Support for LDAP over SSL (requires the Netscape SDK) or TLS (requires the OpenLDAP 2.x SDK or Novell LDAP SDK).