1 # Copyright (C) The Arvados Authors. All rights reserved.
3 # SPDX-License-Identifier: AGPL-3.0
5 require 'can_be_an_owner'
8 class Group < ArvadosModel
11 include CommonApiTemplate
15 # Posgresql JSONB columns should NOT be declared as serialized, Rails 5
16 # already know how to properly treat them.
17 attribute :properties, :jsonbHash, default: {}
19 validate :ensure_filesystem_compatible_name
20 validate :check_group_class
21 validate :check_filter_group_filters
22 validate :check_frozen_state_change_allowed
23 before_create :assign_name
24 after_create :after_ownership_change
25 after_create :update_trash
26 after_create :update_frozen
28 before_update :before_ownership_change
29 after_update :after_ownership_change
31 after_create :add_role_manage_link
33 after_update :update_trash
34 after_update :update_frozen
35 before_destroy :clear_permissions_trash_frozen
37 api_accessible :user, extend: :common do |t|
49 def ensure_filesystem_compatible_name
50 # project and filter groups need filesystem-compatible names, but others
52 super if group_class == 'project' || group_class == 'filter'
56 if group_class != 'project' && group_class != 'role' && group_class != 'filter'
57 errors.add :group_class, "value must be one of 'project', 'role' or 'filter', was '#{group_class}'"
59 if group_class_changed? && !group_class_was.nil?
60 errors.add :group_class, "cannot be modified after record is created"
64 def check_filter_group_filters
65 if group_class == 'filter'
66 if !self.properties.key?("filters")
67 errors.add :properties, "filters property missing, it must be an array of arrays, each with 3 elements"
70 if !self.properties["filters"].is_a?(Array)
71 errors.add :properties, "filters property must be an array of arrays, each with 3 elements"
74 self.properties["filters"].each do |filter|
75 if !filter.is_a?(Array)
76 errors.add :properties, "filters property must be an array of arrays, each with 3 elements"
79 if filter.length() != 3
80 errors.add :properties, "filters property must be an array of arrays, each with 3 elements"
83 if !filter[0].include?(".") and filter[0].downcase != "uuid"
84 errors.add :properties, "filter attribute must be 'uuid' or contain a dot (e.g. groups.name)"
87 if (filter[0].downcase != "uuid" and filter[1].downcase == "is_a")
88 errors.add :properties, "when filter operator is 'is_a', attribute must be 'uuid'"
91 if ! ["=","<","<=",">",">=","!=","like","ilike","in","not in","is_a","exists","contains"].include?(filter[1].downcase)
92 errors.add :properties, "filter operator is not valid (must be =,<,<=,>,>=,!=,like,ilike,in,not in,is_a,exists,contains)"
99 def check_frozen_state_change_allowed
100 if frozen_by_uuid == ""
101 self.frozen_by_uuid = nil
103 if frozen_by_uuid_changed? || (new_record? && frozen_by_uuid)
104 if group_class != "project"
105 errors.add(:frozen_by_uuid, "cannot be modified on a non-project group")
108 if frozen_by_uuid_was && Rails.configuration.API.UnfreezeProjectRequiresAdmin && !current_user.is_admin
109 errors.add(:frozen_by_uuid, "can only be changed by an admin user, once set")
112 if frozen_by_uuid && frozen_by_uuid != current_user.uuid
113 errors.add(:frozen_by_uuid, "can only be set to the current user's UUID")
116 if !new_record? && !current_user.can?(manage: uuid)
117 raise PermissionDeniedError
119 if frozen_by_uuid_was.nil?
120 if Rails.configuration.API.FreezeProjectRequiresDescription && !attribute_present?(:description)
121 errors.add(:frozen_by_uuid, "can only be set if description is non-empty")
123 Rails.configuration.API.FreezeProjectRequiresProperties.andand.each do |key, _|
125 if !properties[key] || properties[key] == ""
126 errors.add(:frozen_by_uuid, "can only be set if properties[#{key}] value is non-empty")
134 if saved_change_to_trash_at? or saved_change_to_owner_uuid?
135 # The group was added or removed from the trash.
138 # Compute project subtree, propagating trash_at to subprojects
139 # Remove groups that don't belong from trash
140 # Add/update groups that do belong in the trash
142 temptable = "group_subtree_#{rand(2**64).to_s(10)}"
143 ActiveRecord::Base.connection.exec_query %{
144 create temporary table #{temptable} on commit drop
145 as select * from project_subtree_with_trash_at($1, LEAST($2, $3)::timestamp)
147 'Group.update_trash.select',
149 [nil, TrashedGroup.find_by_group_uuid(self.owner_uuid).andand.trash_at],
150 [nil, self.trash_at]]
152 ActiveRecord::Base.connection.exec_delete %{
153 delete from trashed_groups where group_uuid in (select target_uuid from #{temptable} where trash_at is NULL);
155 "Group.update_trash.delete"
157 ActiveRecord::Base.connection.exec_query %{
158 insert into trashed_groups (group_uuid, trash_at)
159 select target_uuid as group_uuid, trash_at from #{temptable} where trash_at is not NULL
160 on conflict (group_uuid) do update set trash_at=EXCLUDED.trash_at;
162 "Group.update_trash.insert"
167 return unless saved_change_to_frozen_by_uuid? || saved_change_to_owner_uuid?
168 temptable = "group_subtree_#{rand(2**64).to_s(10)}"
169 ActiveRecord::Base.connection.exec_query(
170 "create temporary table #{temptable} on commit drop as select * from project_subtree_with_is_frozen($1,$2)",
171 "Group.update_frozen.select",
173 [nil, !self.frozen_by_uuid.nil?]])
174 ActiveRecord::Base.connection.exec_delete(
175 "delete from frozen_groups where uuid in (select uuid from #{temptable} where not is_frozen)",
176 "Group.update_frozen.delete")
177 ActiveRecord::Base.connection.exec_query(
178 "insert into frozen_groups (uuid) select uuid from #{temptable} where is_frozen on conflict do nothing",
179 "Group.update_frozen.insert")
182 def before_ownership_change
183 if owner_uuid_changed? and !self.owner_uuid_was.nil?
184 MaterializedPermission.where(user_uuid: owner_uuid_was, target_uuid: uuid).delete_all
185 update_permissions self.owner_uuid_was, self.uuid, REVOKE_PERM
189 def after_ownership_change
190 if saved_change_to_owner_uuid?
191 update_permissions self.owner_uuid, self.uuid, CAN_MANAGE_PERM
195 def clear_permissions_trash_frozen
196 MaterializedPermission.where(target_uuid: uuid).delete_all
197 ActiveRecord::Base.connection.exec_delete(
198 "delete from trashed_groups where group_uuid=$1",
199 "Group.clear_permissions_trash_frozen",
201 ActiveRecord::Base.connection.exec_delete(
202 "delete from frozen_groups where uuid=$1",
203 "Group.clear_permissions_trash_frozen",
208 if self.new_record? and (self.name.nil? or self.name.empty?)
209 self.name = self.uuid
214 def ensure_owner_uuid_is_permitted
215 if group_class == "role"
216 @requested_manager_uuid = nil
218 @requested_manager_uuid = owner_uuid
219 self.owner_uuid = system_user_uuid
222 if self.owner_uuid != system_user_uuid
223 raise "Owner uuid for role must be system user"
225 raise PermissionDeniedError unless current_user.can?(manage: uuid)
232 def add_role_manage_link
233 if group_class == "role" && @requested_manager_uuid
234 act_as_system_user do
235 Link.create!(tail_uuid: @requested_manager_uuid,
236 head_uuid: self.uuid,
237 link_class: "permission",
243 def permission_to_update
246 elsif frozen_by_uuid && frozen_by_uuid_in_database
247 errors.add :uuid, "#{uuid} is frozen and cannot be modified"