|Version 17 (modified by 4 years ago) (diff),|
Active Directory Auth Plugin
NOTE: Major changes from 0.3
- conf variables are renamed for standardization
- now more directory type agnostic
- soon will be renamed to DirectoryAuthPlugin
The Active Directory Auth Plugin is a password store for the AccountManagerPlugin that provides authentication and groups from Active Directory.
Users are authenticated by performing an ldap_bind against the AD server using their credentials. The plugin will also pull the email address and display name from Active Directory and populate the
session_attribute table. See Populating ''Assign To'' Drop Down in Trac for more information on why.
- One can specify a group which users must be a member of in order to log in.
- Additionally, one may specify an admin group. If a user is a member of the admin group, then they will automatically be granted the
- Finally, ActiveDirectory groups are extended into the trac namespace. They can be used to extend permissions by AD group.
- AD groups are prefixed by @
- group names are lowercase and spaces are replaced with underscores.
See GroupManagement for more details.
Given the expense of traversing the network for authorizations, a two-stage cache has been implemented. This caches data in the database for all instances of python, and in memory for each instance; while maintaining expiration and flushing the cache(s) as necessary. See: CacheManagement for details.
If you have any issues, create a new ticket.
Download the zipped source from [download:activedirectoryauthplugin here]
- You must install AccountManagerPlugin in order to use this plugin.
- Python-LDAP is also required and can be downloaded here
Follow the Trac documentation on how to install Trac plugins
- starting with 0.3, a database upgrade will be required as part of the installation.
- install the plugin and it's prerequisites
- update the database
trac-admin /var/trac/instance upgrade
- restart the trac service or your webserver.
NOTE: this has changed from 0.3 to 0.4!!!'''
All config options go under the [account-manager] config heading. Options for this module are:
[account-manager] #--to use this module with AccountManager, ADAuthStore must be enabled inside of AccountManager password_store = ADAuthStore #--define the Active Directory host address here. A port other than default(389) is set as # ldap://hostname:port or ldaps://hostname:port dir_uri = ldap://adserver.example.com #-- the Active Directory's base DN to search from, this is likely just your domain dir_basedn = DC=example,DC=com #-- the user/password to search the directory from, it must be a valid dir_binddn = firstname.lastname@example.org dir_bindpw = ldapuserpassword #-- timeout for an ldap operation before in seconds dir_timeout = 5 #-- the default charset for the ldap server dir_charset = utf-9 ##### Userinfo #-- the attribute containing the users login name, THIS MUST BE UNIQUE! user_attr = sAMAccountName #-- the attribute containing the users display name name_attr = displayName #-- the attribute containing the users email addy email_attr = mail ##### Groups #-- where to look for groups, uses dir_basedn if not defined. group_basedn = ou=Groups,dc=foo,dc=net #-- expand directory groups group_expand = 1 #-- the name of a group .. uses user_attr if not defined. group_attr = cn #-- which attribute to look in for members group_member_attr = member #-- what to look for in the member_attr group_member_value = dn #-- the dn of a group that has valid users, all users if not enabled group_validusers = CN=Alltechs,OU=Mail enabled groups,OU=Email,DC=serverplus,DC=com #-- the DN for a group automagically given TRAC_ADMIN # if this option is enabled you must specify the UserExtensiblePermissionStore as the trac permission store, such as: # [trac] # permission_store = UserExtensiblePermissionStore group_tracadmin = CN=Administration,DC=example,DC=com #### Cache Tuning #-- cached entry time to live in seconds cache_ttl= 90 #-- memorycache size in entries, and a highwater warning mark cache_memsize = 400 cache_memsize_warn 300 #-- memory cache prune size in percentage cache_memprune = 5 [trac] permission_store = UserExtensiblePermissionStore
If you are unsure of what the DNs for your groups are, you may want to use an LDAP browser to inspect your Active Directory schema to find out a group's DN.
If you see Trac throwing an exception similar to "OPERATIONS_ERROR: In order to perform this operation a successful bind must be completed on the connection" when you know the bind user/pass is correct you will want to try connection to active directory on port 3268. This may happen when AD is running across multiple machines.