OpenDJ: Configuration over REST

ForgeRock LogoIn recent builds of OpenDJ directory server, the REST to LDAP configuration changed quite a bit… for the better.

The draft release notes tell only part of the story:

The changes let you configure multiple endpoints each with multiple versions, resource type inheritance, subresource definitions, and protection with OAuth 2.0. This version of REST to LDAP also brings many minor improvements.

A really cool “minor” improvement is that you can now configure OpenDJ directory server over HTTP. In the draft Admin Guide, you can also find a procedure titled, To Set Up REST Access to Administrative Data.

tl;dr—Directory administrators can configure the server over REST through the /admin/config endpoint, and can read monitoring info under the /admin/monitor endpoint.

Important note: Before you go wild writing a whole new OpenDJ web-based console as a single-page app, keep in mind that the REST to LDAP implementation is still an Evolving interface, so incompatible changes can happen even in minor releases.

Here’s one example using /admin/config:

#
# This example demonstrates 
# using the /admin/config endpoint
# to create a password policy
# as a directory administrator
# who is also a regular user.
# 
# This requires a nightly build or release 
# from no earlier than late June 2016.
# 
# In order to get this working,
# first set up OpenDJ directory server
# with data from Example.ldif,
# and enable the HTTP connection handler.
#

#
# Give Kirsten Vaughan the right
# to read/write the server configuration.
# This command updates privileges, 
# which are explained in the Admin Guide:
#
/path/to/opendj/bin/ldapmodify \
 --port 1389 \
 --bindDN "cn=Directory Manager" \
 --bindPassword password
dn: uid=kvaughan,ou=People,dc=example,dc=com
changetype: modify
add: ds-privilege-name
ds-privilege-name: config-read
-
add: ds-privilege-name
ds-privilege-name: config-write

#
# Give Kirsten access to write password policies.
# This command adds a global ACI.
# Global ACIs are explained in the Admin Guide:
#
/path/to/opendj/bin/dsconfig \
 set-access-control-handler-prop \
 --port 4444 \
 --hostname opendj.example.com \
 --bindDN "cn=Directory Manager" \
 --bindPassword "password" \
 --add global-aci:"(target=\"ldap:///cn=Password Policies,cn=config\")(targetscope=\"subtree\")(targetattr=\"*\")(version 3.0; acl \"Manage password policies\"; allow (all) userdn=\"ldap:///uid=kvaughan,ou=People,dc=example,dc=com\";)" \
 --trustAll \
 --no-prompt

#
# Server config-based password policies
# are under the container entry
# /admin/config/password-policies.
# This corresponds to 
# cn=Password Policies,cn=config in LDAP.
#
# The following are standard common REST operations.
# Common REST is explained and demonstrated
# in the OpenDJ Server Dev Guide.
#
# In production, of course,
# use HTTPS (as described in the Admin Guide).
#

#
# Add a new password policy:
#
curl \
 --user kvaughan:bribery \
 --request POST \
 --header "Content-Type: application/json" \
 --data '{
    "_id": "New Account Password Policy",
    "_schema": "password-policy",
    "password-attribute": "userPassword",
    "force-change-on-add": true,
    "default-password-storage-scheme": "Salted SHA-1"
}' http://opendj.example.com:8080/admin/config/password-policies

#
# Read the new password policy:
#
# curl --user kvaughan:bribery http://opendj.example.com:8080/admin/config/password-policies/New%20Account%20Password%20Policy

#
# An exercise for the reader:
# Figure out how to set a user's pwd policy over REST.
#

If you have not yet learned how to use commons REST and OpenDJ REST to LDAP, have a look at the Server Dev Guide chapter, Performing RESTful Operations.

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