Provided by: rt4-extension-authenexternalauth_0.25-1+deb8u1build0.16.04.1_all 
NAME
RT::Authen::ExternalAuth - RT Authentication using External Sources
DESCRIPTION
This module provides the ability to authenticate RT users against one or more external
data sources at once. It will also allow information about that user to be loaded from the
same, or any other available, source as well as allowing multple redundant servers for
each method.
The extension currently supports authentication and information from LDAP via the
Net::LDAP module, and from any data source that an installed DBI driver is available for.
It is also possible to use cookies set by an alternate application for Single Sign-On
(SSO) with that application. For example, you may integrate RT with your own website
login system so that once users log in to your website, they will be automagically logged
in to RT when they access it.
INSTALLATION
"perl Makefile.PL"
"make"
"make install"
May need root permissions
Edit your /opt/rt4/etc/RT_SiteConfig.pm
If you are using RT 4.2 or greater, add this line:
Plugin('RT::Authen::ExternalAuth');
For RT 4.0, add this line:
Set(@Plugins, qw(RT::Authen::ExternalAuth) );
or add "RT::Authen::ExternalAuth" to your existing @Plugins line.
See "CONFIGURATION" for additional configuration to add to your RT_SiteConfig.pm file.
UPGRADING
If you are upgrading from an earlier version of this extension, you must remove the
following files manually:
/opt/rt4/local/plugins/RT-Authen-ExternalAuth/lib/RT/User_Vendor.pm
/opt/rt4/local/lib/RT/User_Vendor.pm
/opt/rt4/local/lib/RT/Authen/External_Auth.pm
Otherwise you will most likely encounter an error about modifying a read only value and be
unable to start RT.
You may not have all of these files. It depends what versions you are upgrading between.
If you are using a vendor packaged RT, your local directories are likely to be somewhere
under /usr/local instead of in /opt/rt4 so you will need to visit Configuration -> Tools
-> System Configuration to find your plugin root.
CONFIGURATION
RT::Authen::ExternalAuth provides a lot of flexibility with many configuration options.
The following desc these configuration options, and provides a complete example.
$ExternalAuthPriority
The order in which the services defined in "$ExternalSettings" should be used to
authenticate users. Once the user has been authenticated by one service, the rest are
skipped.
You should remove services you don't use. For example, if you're only using "My_LDAP",
remove "My_MySQL" and "My_SSO_Cookie".
Set($ExternalAuthPriority, [ 'My_LDAP',
'My_MySQL',
'My_SSO_Cookie'
]
);
$ExternalInfoPriority
When multiple auth services are available, this value defines the order in which the
services defined in "$ExternalSettings" should be used to get information about users.
This includes "RealName", telephone numbers etc, but also whether or not the user
should be considered disabled.
Once a user record is found, no more services are checked.
You CANNOT use a SSO cookie to retrieve information.
You should remove services you don't use, but you must define at least one service.
Set($ExternalInfoPriority, [ 'My_LDAP',
'My_MySQL',
]
);
$AutoCreateNonExternalUsers
If this is set to 1, then users should be autocreated by RT as internal users if they
fail to authenticate from an external service. This is useful if you have users
outside your organization who might interface with RT, perhaps by sending email to a
support email address.
$ExternalSettings
These are the full settings for each external service as a hash of hashes. Note that
you may have as many external services as you wish. They will be checked in the order
specified in "$ExternalAuthPriority" and "$ExternalInfoPriority" directives above.
The outer structure is a key with the authentication option (name of external source).
The value is a hash reference with configuration keys and values, for example:
Set($ExternalSettings, {
My_LDAP => {
type => 'ldap',
... other options ...
},
My_MySQL => {
type => 'db',
... other options ...
},
... other sources ...
} );
As shown above, each description should have 'type' defined. The following types are
supported:
ldap
Authenticate against and sync information with LDAP servers. See
RT::Authen::ExternalAuth::LDAP for details.
db Authenticate against and sync information with external RDBMS, supported by Perl's
DBI interface. See RT::Authen::ExternalAuth::DBI for details.
cookie
Authenticate by cookie. See RT::Authen::ExternalAuth::DBI::Cookie for details.
See the modules noted above for configuration options specific to each type. The
following apply to all types.
attr_match_list
The list of RT attributes that uniquely identify a user. These values are used, in
order, to find users in the selected authentication source. Each value specified
here must have a mapping in the "attr_map" section below. You can remove values
you don't expect to match, but we recommend using "Name" and "EmailAddress" at a
minimum. For example:
'attr_match_list' => [
'Name',
'EmailAddress',
],
You should not use items that can map to multiple users (such as a "RealName" or
building name).
attr_map
Mapping of RT attributes on to attributes in the external source. Valid keys are
attributes of an RT::User <http://bestpractical.com/rt/docs/latest/RT/User.html>.
The values are attributes from your authentication source. For example, an LDAP
mapping might look like:
'attr_map' => {
'Name' => 'sAMAccountName',
'EmailAddress' => 'mail',
'Organization' => 'physicalDeliveryOfficeName',
'RealName' => 'cn',
...
},
Example
# Use the below LDAP source for both authentication, as well as user
# information
Set( $ExternalAuthPriority, ["My_LDAP"] );
Set( $ExternalInfoPriority, ["My_LDAP"] );
# Users created from LDAP should be Privileged; this is a core RT
# option. Additionally, this is the 4.2 name for the option; for RT
# 4.0, is it named $AutoCreate See the core RT documentation at
# http://docs.bestpractical.com/RT_Config#UserAutocreateDefaultsOnLogin
# for for further details.
Set( $UserAutocreateDefaultsOnLogin, { Privileged => 1 } );
# Users should still be autocreated by RT as internal users if they
# fail to exist in an external service; this is so requestors (who
# are not in LDAP) can still be created when they email in.
Set($AutoCreateNonExternalUsers, 1);
# Minimal LDAP configuration; see RT::Authen::ExternalAuth::LDAP for
# further details and examples
Set($ExternalSettings, {
'My_LDAP' => {
'type' => 'ldap',
'server' => 'ldap.example.com',
# By not passing 'user' and 'pass' we are using an anonymous
# bind, which some servers to not allow
'base' => 'ou=Staff,dc=example,dc=com',
'filter' => '(objectClass=inetOrgPerson)',
# Users are allowed to log in via email address or account
# name
'attr_match_list' => [
'Name',
'EmailAddress',
],
# Import the following properties of the user from LDAP upon
# login
'attr_map' => {
'Name' => 'sAMAccountName',
'EmailAddress' => 'mail',
'RealName' => 'cn',
'WorkPhone' => 'telephoneNumber',
'Address1' => 'streetAddress',
'City' => 'l',
'State' => 'st',
'Zip' => 'postalCode',
'Country' => 'co',
},
},
} );
AUTHORS
Best Practical Solutions, LLC <modules@bestpractical.com>
Originally by Mike Peachey (Jennic Ltd.) <zordrak@cpan.org>
BUGS
All bugs should be reported via email to
L<bug-RT-Authen-ExternalAuth@rt.cpan.org|mailto:bug-RT-Authen-ExternalAuth@rt.cpan.org>
or via the web at
L<rt.cpan.org|http://rt.cpan.org/Public/Dist/Display.html?Name=RT-Authen-ExternalAuth>.
LICENSE AND COPYRIGHT
Copyright (c) 2008-2014 by Best Practical Solutions, LLC Copyright (c) 2008 by Jennic Ltd.
This is free software, licensed under:
The GNU General Public License, Version 2, June 1991
"constant_time_eq($a, $b)"
Taken verbatim from RT 4.4's RT::Util.