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#--
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# LdapShadows, a Medium-level LDAP Access Library and Tool.
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# Copyright (c) 2009-2010 Marc Dequènes (Duck) <Duck@DuckCorp.org>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#++
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require 'ldap_shadows/manipulation_helper'
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module LdapShadows
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module Elements
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class LdapObject < ActiveLdap::Base
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include LdapElement
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FULL_HANDLE_PATTERN = /^(?:root|([a-zA-Z_]+)\/(.+))$/
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attr_reader :parent_changed
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@relations_info = {}
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class << self
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attr_reader :relations_info
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end
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# default
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ldap_mapping :prefix => '', :classes => ['top'], :scope => :sub
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def initialize(attributes = nil)
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super(attributes)
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@parent_changed = false
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@latest_parent_full_handle = nil
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end
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def handle
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name = self[dn_attribute] || self.attributes[dn_attribute] || self.dn.to_s
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name = name.first if name.is_a? Array
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name.strip
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end
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def full_handle
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"#{self.class.handle}/#{self.handle}"
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end
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def self.cast
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super
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ldap_mapping self.parameters[:mapping].reject {|key, val| not ActiveLdap::Base::VALID_LDAP_MAPPING_OPTIONS.include?(key)}
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end
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def self.cast_relations
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super
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object_rel = {}
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object_rel.merge!(self.parameters[:relations]) if self.parameters.include?(:relations)
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self.possible_aspects.each do |aspect_name|
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aspect = self.shadow.get_aspect(aspect_name)
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if aspect.nil?
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raise PreProcessingError, _("Aspect '%s' is missing for object '%s'") % [aspect_name, self.handle]
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end
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object_rel.merge!(aspect.parameters[:relations])
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end
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object_relations_info = {}
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object_rel.each_pair do |field_name, rel|
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foreign_klass = self.shadow.get_object(rel[:object])
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if foreign_klass.nil?
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raise PreProcessingError, _("Relation '%s' for object '%s' is impossible: foreign object '%s' is missing") % [field_name, self.handle, rel[:object]]
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end
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rel[:class_name] = foreign_klass.to_s
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rel_attr_val = rel[:foreign_key]
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case rel[:type]
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when 'belongs_to'
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belongs_to field_name, rel.reject {|key, val| not ActiveLdap::Associations::ClassMethods::VALID_BELONGS_TO_OPTIONS.include?(key) }
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rel_attr_val = rel[:primary_key] if rel[:many] and rel[:primary_key]
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when 'has_many'
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has_many field_name, rel.reject {|key, val| not ActiveLdap::Associations::ClassMethods::VALID_HAS_MANY_OPTIONS.include?(key) }
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else
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raise "bug in '#{self.handle}' object relations (wrong type)"
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end
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object_relations_info[field_name] = {
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:foreign_klass => foreign_klass,
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:single_value => ActiveLdap::Base.schema.attribute(rel_attr_val).single_value?,
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:read_only => rel[:read_only] || false
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}
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end
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instance_variable_set(:@relations_info, object_relations_info)
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end
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def has_field?(field)
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return false if field.downcase == "objectclass"
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has_attribute?(field)
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end
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def human_name
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attr_list = ['displayName', 'cn']
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name_attribute = self.class.parameters[:presentation][:name_attribute]
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attr_list.unshift(name_attribute) unless name_attribute.nil?
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attr_list.each do |attr|
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if attr == 'dn'
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return self.dn.to_s
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elsif self.attribute_present?(attr)
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val = self.send(attr, true)
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return val[0].to_s.strip
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end
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end
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return ""
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end
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def human_description
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attr_list = ['description']
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desc_attribute = self.class.parameters[:presentation][:desc_attribute]
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attr_list.unshift(desc_attribute) unless desc_attribute.nil?
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attr_list.each do |attr|
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if self.attribute_present?(attr)
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return self[attr].is_a?(Array) ? self[attr][0] : self[attr]
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end
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end
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return ""
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end
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def possible_relations
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self.associations.collect {|assoc| assoc.to_s } - ['children']
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end
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def relations
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rel_list = self.class.parameters[:mapping][:associated_relations]
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aspects.values.each do |aspect|
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rel_list += aspect.parameters[:mapping][:associated_relations]
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end
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rel_list & possible_relations
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end
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def self.possible_aspects
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self.parameters[:mapping][:possible_aspects].sort
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end
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def aspects
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present_aspects = {}
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self.class.possible_aspects.each do |aspect_name|
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aspect = self.class.shadow.get_aspect(aspect_name)
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aspect_mapping = aspect.parameters[:mapping]
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present_aspects[aspect.handle] = aspect if self.classes & aspect_mapping[:classes] == aspect_mapping[:classes]
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end
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present_aspects
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end
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def organized_data
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ignored_attrs = self.class.shadow.get_config[:presentation][:hidden_attributes]
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ignored_attrs += self.class.parameters[:presentation][:hidden_attributes]
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attr_list = self.nonempty_attributes - ignored_attrs
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expert_attributes = self.class.parameters[:presentation][:expert_attributes]
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admin_attributes = attr_list.select do |attr|
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ActiveLdap::Base.schema.attribute(attr).directory_operation?
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end
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rel_list = self.possible_relations
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# first pass to take aspects forced relations into account
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obj_aspects = {}
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self.aspects.values.each do |aspect|
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aspect_data = aspect.parameters
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unless aspect_data[:mapping][:associated_attributes].empty?
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taken_attr_list = aspect_data[:mapping][:associated_attributes] & (attr_list + ignored_attrs)
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unless taken_attr_list.empty?
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obj_aspects[aspect.handle] ||= {}
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obj_aspects[aspect.handle].merge!(fetch_attributes_data(taken_attr_list, expert_attributes, admin_attributes))
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attr_list -= taken_attr_list
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end
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end
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unless aspect_data[:mapping][:associated_relations].empty?
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taken_rel_list = aspect_data[:mapping][:associated_relations] & rel_list
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unless taken_rel_list.empty?
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obj_aspects[aspect.handle] ||= {}
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obj_aspects[aspect.handle].merge!(fetch_relations_data(taken_rel_list, expert_attributes))
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rel_list -= taken_rel_list
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end
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end
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end
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# manage general attributes
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obj_info = {}
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if self.class.parameters[:mapping][:associate_unclaimed_attributes]
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taken_attr_list = attr_list
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else
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taken_attr_list = admin_attributes
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taken_attr_list += self.class.parameters[:mapping][:associated_attributes]
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taken_attr_list += self.class.possible_attributes
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end
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taken_attr_list = taken_attr_list.uniq & attr_list
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obj_info = fetch_attributes_data(taken_attr_list, expert_attributes, admin_attributes)
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attr_list -= taken_attr_list
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# manage general relations
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if self.class.parameters[:mapping][:associated_relations]
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taken_rel_list = self.class.parameters[:mapping][:associated_relations] & rel_list
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unless taken_rel_list.empty?
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obj_info.merge!(fetch_relations_data(taken_rel_list, expert_attributes))
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rel_list -= taken_rel_list
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end
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end
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# second pass to dispath the remaining attributes
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unless attr_list.empty?
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self.aspects.values.each do |aspect|
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taken_attr_list = (aspect.possible_attributes & attr_list)
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obj_aspects[aspect.handle] ||= {}
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obj_aspects[aspect.handle].merge!(fetch_attributes_data(taken_attr_list, expert_attributes, admin_attributes))
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attr_list -= taken_attr_list
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break if attr_list.empty?
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end
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end
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[obj_info, obj_aspects]
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end
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def modify(key, op, val)
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if key.index(":")
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type, field = key.split(":")
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else
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type = nil
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field = key
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end
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case type
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when nil
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modify_field(key, op, val)
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when 'rel'
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modify_relation(field, op, val)
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when ''
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case field
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when 'aspects'
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modify_aspects(op, val)
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when 'parent'
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modify_parent(op, val)
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else
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raise PreProcessingError, _("Unknown core field '%s'") % field
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end
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else
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raise PreProcessingError, _("Unknown type '%s' for field '%s'") % [type, field]
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end
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end
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def modify_field(field, op, val)
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unless self.has_field?(field)
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raise PreProcessingError, _("No such field '%s' in object '%s'") % [field, self.class.handle]
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end
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attr_info = ActiveLdap::Base.schema.attribute(field)
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if attr_info.read_only?
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raise PreProcessingError, _("The field '%s' cannot be modified (read only)") % field
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end
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if attr_info.binary?
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unless File.exists?(val)
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raise PreProcessingError, _("The field '%s' contains binary data, you must provide a filename instead of a direct value") % field
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end
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begin
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val = File.read(val)
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rescue
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raise PreProcessingError, _("The file for the binary field '%s' cannot be read: ") % [field, $!]
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end
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elsif attr_info.syntax.to_param == "1.3.6.1.4.1.1466.115.121.1.12"
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if val =~ FULL_HANDLE_PATTERN
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obj_hdl = $1.downcase
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item_hdl = $2
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obj_klass = self.class.shadow.get_object(obj_hdl)
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raise PreProcessingError, _("No such object '%s'") % obj_hdl if obj_klass.nil?
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begin
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item = obj_klass.find(item_hdl, :attributes => [''])
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rescue ActiveLdap::EntryNotFound
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raise PreProcessingError, _("No such item '%s/%s'") % [obj_klass.handle, item_hdl]
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end
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val = item.dn
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end
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end
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old_val = self.send(field, true)
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# if val is nil or the latest value is removed, then the attribute is removed from the object,
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case op
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when '='
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val = [val] if old_val.is_a? Enumerable
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return false if val == old_val
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self.send(field + "=", val)
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when '+='
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if attr_info.single_value?
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raise PreProcessingError, _("The field '%s' cannot hold more than one value") % field
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end
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return false if old_val.include?(val)
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new_val = old_val << val
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self.send(field + "=", new_val)
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when '-='
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return false unless old_val.include?(val)
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new_val = old_val - [val]
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self.send(field + "=", new_val)
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else
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raise SyntaxError, _("Unknown operator '%s'") % op
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end
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true
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end
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def modify_relation(rel, op, val)
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unless self.relations.include?(rel)
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raise PreProcessingError, _("No such relation '%s' for object '%s'") % [rel, self.class.handle]
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end
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rel_info = self.class.relations_info[rel.to_sym]
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if rel_info[:read_only]
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raise PreProcessingError, _("The relation '%s' cannot be modified (read only)") % rel
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end
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if val.blank?
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raise PreProcessingError, _("No item handle specified for relation '%s'") % rel
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end
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# fetch remote object in relation, which will be the real 'val'
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foreign_item_list = rel_info[:foreign_klass].find(:all, val)
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if foreign_item_list.empty?
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raise PreProcessingError, _("Foreign item '%s' for relation '%s' not found") % [val, rel]
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end
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if foreign_item_list.size > 1
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raise WeirdError, _("Ambiguous item '%s' for relation '%s' (%s possible items)") %
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[val, rel, foreign_item_list.size]
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end
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old_val = self.send(rel)
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val = foreign_item_list.first
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# if val is nil or the latest value is removed, then the association's attribute is removed from one side
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case op
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when '='
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val = [val] if old_val.is_a? Enumerable
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self.send(rel + "=", val)
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when '+='
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if rel_info[:single_value]
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raise PreProcessingError, _("The relation '%s' cannot hold more than one foreign item") % rel
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end
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return false if old_val.include?(val)
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self.send(rel) << val
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when '-='
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return false unless old_val.include?(val)
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self.send(rel).delete(val)
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else
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raise SyntaxError, _("Unknown operator '%s'") % op
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end
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true
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end
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def modify_aspects(op, aspect_name)
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unless self.class.possible_aspects.include?(aspect_name)
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raise PreProcessingError, _("No such aspect '%s' for object '%s'") % [aspect_name, self.class.handle]
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end
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case op
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when '='
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raise PreProcessingError, _("The equality operator is not possible for aspects")
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when '+='
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return false if self.aspects.keys.include?(aspect_name)
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self.add_aspect(aspect_name)
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when '-='
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return false unless self.aspects.keys.include?(aspect_name)
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self.remove_aspect(aspect_name)
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else
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raise SyntaxError, _("Unknown operator '%s'") % op
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end
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true
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end
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def modify_parent(op, parent_full_handle)
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case op
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when '='
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when '+=', '-='
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raise PreProcessingError, _("This operator is not possible for parent")
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else
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raise SyntaxError, _("Unknown operator '%s'") % op
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end
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unless Manipulation.looks_like_full_handle?(parent_full_handle)
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raise PreProcessingError, _("Parent for the item is not a full handle")
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end
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parent_item = Manipulation.find_item_by_full_handle(self.class.shadow, parent_full_handle)
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if self.new_entry?
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self.base = parent_item.dn - parent_item.class.base
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else
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raise PreProcessingError, _("Moving items is not yet implemented")
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end
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@parent_changed = true
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@latest_parent_full_handle = parent_full_handle
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end
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def add_aspect(aspect_name)
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return unless self.class.possible_aspects.include?(aspect_name)
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aspect_mapping = self.class.shadow.get_aspect(aspect_name).parameters[:mapping]
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add_class(*aspect_mapping[:classes])
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# recursive dependency enforcement
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aspect_mapping[:depend_aspects].each do |dep_aspect|
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add_aspect(dep_aspect)
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end
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end
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def remove_aspect(aspect_name)
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return unless self.class.possible_aspects.include?(aspect_name)
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# remove reverse-depends
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self.class.possible_aspects.each do |rdep_aspect_name|
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if self.class.shadow.get_aspect(rdep_aspect_name).parameters[:mapping][:depend_aspects].include?(aspect_name)
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remove_aspect(rdep_aspect_name)
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end
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end
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aspect_mapping = self.class.shadow.get_aspect(aspect_name).parameters[:mapping]
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remove_class(*aspect_mapping[:classes])
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end
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def delete(options = {})
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before_delete_jobs
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super(options)
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after_save_jobs
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end
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def delete_recursive
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# TODO: recursive instanciation and reverse recursive hook calls
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before_delete_jobs
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self.class.delete_all(nil, :scope => :sub, :base => self.dn)
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after_delete_jobs
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end
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# cannot override create_or_update() because of alias chaining
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def save
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before_save_jobs
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r = super
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after_save_jobs
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r
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end
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def save!
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before_save_jobs
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r = super
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after_save_jobs
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r
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end
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protected
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def before_save_jobs
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check_hooks_before(:save)
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check_missing_attributes
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check_password
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check_parent
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end
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def before_delete_jobs
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check_hooks_before(:delete)
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end
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def check_hooks_before(action)
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begin
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case action
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when :save
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if self.new_entry?
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self.class.hook_before_create(self)
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else
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self.class.hook_before_modify(self)
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end
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when :delete
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self.class.hook_before_delete(self)
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end
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rescue
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raise PreProcessingError, _("Hook before action on object failed: %s") % $!
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end
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# TODO: move this in the LdapAspect class
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self.aspects.each do |aspect_name, aklass|
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begin
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case action
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when :save
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if self.new_entry?
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aklass.hook_before_create(self)
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else
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aklass.hook_before_modify(self)
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end
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when :delete
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aklass.hook_before_delete(self)
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end
|
|
rescue
|
|
raise PreProcessingError, _("Hook before action on aspect '%s' failed: %s") % [aspect_name, $!]
|
|
end
|
|
end
|
|
end
|
|
|
|
def check_missing_attributes
|
|
missing_fields = self.missing_attributes
|
|
unless missing_fields.empty?
|
|
miss_str = []
|
|
missing_fields.each do |field|
|
|
str = Translator.translate_field_name(field)
|
|
str += " [#{field}]" if $program_options[:handles]
|
|
miss_str << str
|
|
end
|
|
raise PreProcessingError, _("Cannot save the item; the following fields are missing: %s") %
|
|
miss_str.join(", ")
|
|
end
|
|
end
|
|
|
|
def check_password
|
|
return unless self.modified_attributes([:replace], true).include? 'userPassword'
|
|
|
|
hash_func = self.class.config.global_config[:password_hash]
|
|
return if hash_func.nil?
|
|
|
|
self.userPassword = ActiveLdap::UserPassword.send(hash_func, self.userPassword)
|
|
end
|
|
|
|
def check_parent
|
|
parent_full_handle = nil
|
|
parent_item_dn = nil
|
|
|
|
if self.new_entry? and not self.parent_changed
|
|
parent_full_handle = self.class.parameters[:mapping][:default_parent]
|
|
if parent_full_handle
|
|
unless Manipulation.looks_like_full_handle?(parent_full_handle)
|
|
raise PreProcessingError, _("Default parent for the item is not a full handle")
|
|
end
|
|
|
|
begin
|
|
parent_item = Manipulation.find_item_by_full_handle(self.class.shadow, parent_full_handle)
|
|
self.base = parent_item.dn - parent_item.class.base
|
|
rescue
|
|
raise PreProcessingError, _("Cannot create the item: bad default parent for this kind of object: %s") % $!
|
|
end
|
|
|
|
parent_item_dn = parent_item.dn.to_s
|
|
else
|
|
raise PreProcessingError, _("Cannot create the item: parent not specified and no default for such object")
|
|
end
|
|
end
|
|
|
|
parent_full_handle = @latest_parent_full_handle if parent_full_handle.nil?
|
|
# return if this item is not new and was not relocated
|
|
return if parent_full_handle.nil?
|
|
|
|
parent_item_dn = self.base.to_s if parent_item_dn.nil?
|
|
|
|
p_hdl_restr = self.class.parameters[:mapping][:parent_handle_restrictions]
|
|
unless p_hdl_restr.nil? or parent_full_handle =~ Regexp.new(p_hdl_restr)
|
|
raise PreProcessingError, _("This parent can't raise such a child (handle restrictions)")
|
|
end
|
|
p_dn_restr = self.class.parameters[:mapping][:parent_dn_restrictions]
|
|
unless p_dn_restr.nil? or parent_item_dn =~ Regexp.new(p_dn_restr)
|
|
raise PreProcessingError, _("This parent can't raise such a child (DN restrictions)")
|
|
end
|
|
end
|
|
|
|
def after_save_jobs
|
|
check_hooks_after(:save)
|
|
@parent_changed = false
|
|
end
|
|
|
|
def after_delete_jobs
|
|
check_hooks_after(:delete)
|
|
end
|
|
|
|
def check_hooks_after(action)
|
|
# TODO: move this in the LdapAspect class
|
|
self.aspects.each do |aspect_name, aklass|
|
|
begin
|
|
case action
|
|
when :save
|
|
if self.new_entry?
|
|
aklass.hook_after_create(self)
|
|
else
|
|
aklass.hook_after_modify(self)
|
|
end
|
|
when :delete
|
|
aklass.hook_after_delete(self)
|
|
end
|
|
rescue
|
|
raise PreProcessingError, _("Hook after action on aspect '%s' failed: %s") % [aspect_name, $!]
|
|
end
|
|
end
|
|
|
|
begin
|
|
case action
|
|
when :save
|
|
if self.new_entry?
|
|
self.class.hook_after_create(self)
|
|
else
|
|
self.class.hook_after_modify(self)
|
|
end
|
|
when :delete
|
|
self.class.hook_after_delete(self)
|
|
end
|
|
rescue
|
|
raise PreProcessingError, _("Hook after action on object failed: %s") % $!
|
|
end
|
|
end
|
|
|
|
def fetch_attributes_data(attr_list, expert_attributes, admin_attributes)
|
|
attr_data = self.attributes.collect do |key, val|
|
|
if attr_list.include?(key)
|
|
attr_info = ActiveLdap::Base.schema.attribute(key)
|
|
[key, {
|
|
:syntax => attr_info.syntax.to_param,
|
|
:value => val,
|
|
:multiple => val.is_a?(Array),
|
|
:expert => expert_attributes.include?(key),
|
|
:admin => admin_attributes.include?(key),
|
|
:binary => attr_info.binary?
|
|
}]
|
|
else
|
|
nil
|
|
end
|
|
end
|
|
Hash[attr_data.compact]
|
|
end
|
|
|
|
def fetch_relations_data(rel_list, expert_attributes)
|
|
rel_data = rel_list.collect do |rel|
|
|
data = self.send(rel)
|
|
if data.is_a? Enumerable
|
|
if data.empty?
|
|
value = nil
|
|
else
|
|
value = data.collect{|g| g.handle }
|
|
multiple = true
|
|
end
|
|
else
|
|
# the exists? method also ensure the object is loaded
|
|
if data.exists?
|
|
value = data.handle
|
|
else
|
|
value = nil
|
|
end
|
|
multiple = false
|
|
end
|
|
|
|
if value.nil?
|
|
nil
|
|
else
|
|
rel_key = "rel:" + rel
|
|
[rel_key, {
|
|
:syntax => nil,
|
|
:value => value,
|
|
:multiple => multiple,
|
|
:expert => expert_attributes.include?(rel_key),
|
|
:admin => false,
|
|
:binary => false
|
|
}]
|
|
end
|
|
end
|
|
Hash[rel_data.compact]
|
|
end
|
|
end
|
|
end
|
|
end
|