services/api/lib/fix_roles_projects.rb

   1 # Copyright (C) The Arvados Authors. All rights reserved.
   2 #
   3 # SPDX-License-Identifier: AGPL-3.0
   4
   5 require 'update_permissions'
   6
   7 include CurrentApiClient
   8
   9 def fix_roles_projects
  10   batch_update_permissions do
  11     # This migration is not reversible.  However, the behavior it
  12     # enforces is backwards-compatible, and most of the time there
  13     # shouldn't be anything to do at all.
  14     act_as_system_user do
  15       ActiveRecord::Base.transaction do
  16         Group.where("group_class != 'project' or group_class is null").each do |g|
  17           # 1) any group not group_class != project becomes a 'role' (both empty and invalid groups)
  18           old_owner = g.owner_uuid
  19           g.owner_uuid = system_user_uuid
  20           g.group_class = 'role'
  21           g.save_with_unique_name!
  22
  23           if old_owner != system_user_uuid
  24             # 2) Ownership of a role becomes a can_manage link
  25             Link.new(link_class: 'permission',
  26                          name: 'can_manage',
  27                          tail_uuid: old_owner,
  28                          head_uuid: g.uuid).
  29               save!(validate: false)
  30           end
  31         end
  32
  33         ActiveRecord::Base.descendants.reject(&:abstract_class?).each do |klass|
  34           next if [ApiClientAuthorization,
  35                    AuthorizedKey,
  36                    Log,
  37                    Group].include?(klass)
  38           next if !klass.columns.collect(&:name).include?('owner_uuid')
  39
  40           # 3) If a role owns anything, give it to system user and it
  41           # becomes a can_manage link
  42           klass.joins("join groups on groups.uuid=#{klass.table_name}.owner_uuid and groups.group_class='role'").each do |owned|
  43             Link.new(link_class: 'permission',
  44                      name: 'can_manage',
  45                      tail_uuid: owned.owner_uuid,
  46                      head_uuid: owned.uuid).
  47               save!(validate: false)
  48             owned.owner_uuid = system_user_uuid
  49             owned.save_with_unique_name!
  50           end
  51         end
  52
  53         Group.joins("join groups as g2 on g2.uuid=groups.owner_uuid and g2.group_class='role'").each do |owned|
  54           Link.new(link_class: 'permission',
  55                        name: 'can_manage',
  56                        tail_uuid: owned.owner_uuid,
  57                        head_uuid: owned.uuid).
  58             save!(validate: false)
  59           owned.owner_uuid = system_user_uuid
  60           owned.save_with_unique_name!
  61         end
  62
  63         # 4) Projects can't have outgoing permission links.  Just
  64         # print a warning and delete them.
  65         q = ActiveRecord::Base.connection.exec_query %{
  66 select links.uuid from links, groups where groups.uuid = links.tail_uuid and
  67        links.link_class = 'permission' and groups.group_class = 'project'
  68 }
  69         q.each do |lu|
  70           ln = Link.find_by_uuid(lu['uuid'])
  71           puts "WARNING: Projects cannot have outgoing permission links, removing '#{ln.name}' link #{ln.uuid} from #{ln.tail_uuid} to #{ln.head_uuid}"
  72           Rails.logger.warn "Projects cannot have outgoing permission links, removing '#{ln.name}' link #{ln.uuid} from #{ln.tail_uuid} to #{ln.head_uuid}"
  73           ln.destroy!
  74         end
  75       end
  76     end
  77   end
  78 end