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LDAP authentication to Lion Server Open Directory

Question asked by peterglock on May 4, 2012
Latest reply on Nov 12, 2012 by peterglock
Environment: Alfresco 4.0d using the mac installer on a Lion Server (10.7.3), using the built-in Postgresql server to host the database.

The ldap setup is a little different for Apple's version of OpenLDAP. I'm posting my config file here in case it saves anyone time.

1. you need to setup chaining in /Applications/alfresco-4.0.d/tomcat/shared/classes/alfresco-global.properties

### Authentication Chain ###
authentication.chain=alfrescoNtlm1:alfrescoNtlm,ldap1:ldap

I also turned on debugging to see how ldap was working

### Debug lines ###
log4.logger.org.alfresco.repo.security.authentication.ldap=debug

2. Modify /Applications/alfresco-4.0.d/tomcat/webapps/alfresco/WEB-INF/classes/alfresco/subsystems/Authentication/ldap/ldap-authentication.properties so it looks like:

# This flag enables use of this LDAP subsystem for authentication. It may be
# that this subsytem should only be used for synchronization, in which case
# this flag should be set to false.
ldap.authentication.active=true

#
# This properties file brings together the common options for LDAP authentication rather than editing the bean definitions
#
ldap.authentication.allowGuestLogin=true
# How to map the user id entered by the user to that passed through to LDAP
# - simple
#    - this must be a DN and would be something like
#      uid=%s,ou=People,dc=company,dc=com
# - digest
#    - usually pass through what is entered
#      %s
# If not set, an LDAP query involving ldap.synchronization.personQuery and ldap.synchronization.userIdAttributeName will
# be performed to resolve the DN dynamically. This allows directories to be structured and doesn't require the user ID to
# appear in the DN.
ldap.authentication.userNameFormat=uid=%s,cn=users,dc=domain,dc=com
#ldap.authentication.userNameFormat=%s

# The LDAP context factory to use
ldap.authentication.java.naming.factory.initial=com.sun.jndi.ldap.LdapCtxFactory

# The URL to connect to the LDAP server
ldap.authentication.java.naming.provider.url=ldap://<myldapserver>:389

# The authentication mechanism to use for password validation
ldap.authentication.java.naming.security.authentication=simple

# Escape commas entered by the user at bind time
# Useful when using simple authentication and the CN is part of the DN and contains commas
ldap.authentication.escapeCommasInBind=false

# Escape commas entered by the user when setting the authenticated user
# Useful when using simple authentication and the CN is part of the DN and contains commas, and the escaped \, is
# pulled in as part of an LDAP sync
# If this option is set to true it will break the default home folder provider as space names can not contain \
ldap.authentication.escapeCommasInUid=false

# Comma separated list of user names who should be considered administrators by default
ldap.authentication.defaultAdministratorUserNames=localadmin,admin

# This flag enables use of this LDAP subsystem for user and group
# synchronization. It may be that this subsytem should only be used for
# authentication, in which case this flag should be set to false.
ldap.synchronization.active=false

# The authentication mechanism to use for synchronization
ldap.synchronization.java.naming.security.authentication=none

# The default principal to use (only used for LDAP sync)
ldap.synchronization.java.naming.security.principal=

# The password for the default principal (only used for LDAP sync)
ldap.synchronization.java.naming.security.credentials=

# If positive, this property indicates that RFC 2696 paged results should be
# used to split query results into batches of the specified size. This
# overcomes any size limits imposed by the LDAP server.
ldap.synchronization.queryBatchSize=0

# If positive, this property indicates that range retrieval should be used to fetch
# multi-valued attributes (such as member) in batches of the specified size.
# Overcomes any size limits imposed by Active Directory.       
ldap.synchronization.attributeBatchSize=0

# The query to select all objects that represent the groups to import.
ldap.synchronization.groupQuery=(objectclass\=groupOfNames)

# The query to select objects that represent the groups to import that have changed since a certain time.
ldap.synchronization.groupDifferentialQuery=(&(objectclass\=groupOfNames)(!(modifyTimestamp<\={0})))

# The query to select all objects that represent the users to import.
ldap.synchronization.personQuery=(objectclass\=inetOrgPerson)

# The query to select objects that represent the users to import that have changed since a certain time.
ldap.synchronization.personDifferentialQuery=(&(objectclass\=inetOrgPerson)(!(modifyTimestamp<\={0})))

# The group search base restricts the LDAP group query to a sub section of tree on the LDAP server.
ldap.synchronization.groupSearchBase=cn\=groups,dc\=domain,dc\=com

# The user search base restricts the LDAP user query to a sub section of tree on the LDAP server.
ldap.synchronization.userSearchBase=cn\=users,dc\=domain,dc\=com

# The name of the operational attribute recording the last update time for a group or user.
ldap.synchronization.modifyTimestampAttributeName=modifyTimestamp

# The timestamp format. Unfortunately, this varies between directory servers.
ldap.synchronization.timestampFormat=yyyyMMddHHmmss'Z'

# The attribute name on people objects found in LDAP to use as the uid in Alfresco
ldap.synchronization.userIdAttributeName=uid

# The attribute on person objects in LDAP to map to the first name property in Alfresco
ldap.synchronization.userFirstNameAttributeName=givenName

# The attribute on person objects in LDAP to map to the last name property in Alfresco
ldap.synchronization.userLastNameAttributeName=sn

# The attribute on person objects in LDAP to map to the email property in Alfresco
ldap.synchronization.userEmailAttributeName=mail

# The attribute on person objects in LDAP to map to the organizational id  property in Alfresco
ldap.synchronization.userOrganizationalIdAttributeName=o

# The default home folder provider to use for people created via LDAP import
ldap.synchronization.defaultHomeFolderProvider=largeHomeFolderProvider

# The attribute on LDAP group objects to map to the authority name property in Alfresco
ldap.synchronization.groupIdAttributeName=cn

# The attribute on LDAP group objects to map to the authority display name property in Alfresco
ldap.synchronization.groupDisplayNameAttributeName=apple-group-realname

# The group type in LDAP
ldap.synchronization.groupType=groupOfNames

# The person type in LDAP
ldap.synchronization.personType=users

# The attribute in LDAP on group objects that defines the DN for its members
ldap.synchronization.groupMemberAttributeName=memberUid

# If true progress estimation is enabled. When enabled, the user query has to be run twice in order to count entries.
ldap.synchronization.enableProgressEstimation=true

Note: I'm not currently synchronising, that's for later.

Hope this helps.

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