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module Gitlab
module LDAP
class Person
# Active Directory-specific LDAP filter that checks if bit 2 of the
# userAccountControl attribute is set.
# Source: http://ctogonewild.com/2009/09/03/bitmask-searches-in-ldap/
AD_USER_DISABLED = Net::LDAP::Filter.ex("userAccountControl:1.2.840.113556.1.4.803", "2")
attr_accessor :entry, :provider
def self.find_by_uid(uid, adapter)
uid = Net::LDAP::Filter.escape(uid)
adapter.user(adapter.config.uid, uid)
end
def self.find_by_dn(dn, adapter)
adapter.user('dn', dn)
end
def self.find_by_email(email, adapter)
email_fields = adapter.config.attributes['email']
adapter.user(email_fields, email)
end
def self.disabled_via_active_directory?(dn, adapter)
adapter.dn_matches_filter?(dn, AD_USER_DISABLED)
end
def self.ldap_attributes(config)
[
'dn', # Used in `dn`
config.uid, # Used in `uid`
*config.attributes['name'], # Used in `name`
*config.attributes['email'] # Used in `email`
]
end
def initialize(entry, provider)
Rails.logger.debug { "Instantiating #{self.class.name} with LDIF:\n#{entry.to_ldif}" }
@entry = entry
@provider = provider
end
def name
attribute_value(:name).first
end
def uid
entry.public_send(config.uid).first # rubocop:disable GitlabSecurity/PublicSend
end
def username
uid
end
def email
attribute_value(:email)
end
delegate :dn, to: :entry
private
def entry
@entry
end
def config
@config ||= Gitlab::LDAP::Config.new(provider)
end
# Using the LDAP attributes configuration, find and return the first
# attribute with a value. For example, by default, when given 'email',
# this method looks for 'mail', 'email' and 'userPrincipalName' and
# returns the first with a value.
def attribute_value(attribute)
attributes = Array(config.attributes[attribute.to_s])
selected_attr = attributes.find { |attr| entry.respond_to?(attr) }
return nil unless selected_attr
entry.public_send(selected_attr) # rubocop:disable GitlabSecurity/PublicSend
end
end
end
end
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