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86 lines
3.1 KiB
86 lines
3.1 KiB
#-- encoding: UTF-8
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#-- copyright
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# OpenProject is a project management system.
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# Copyright (C) 2012-2014 the OpenProject Foundation (OPF)
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License version 3.
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#
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# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
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# Copyright (C) 2006-2013 Jean-Philippe Lang
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# Copyright (C) 2010-2013 the ChiliProject Team
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (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, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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# See doc/COPYRIGHT.rdoc for more details.
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#++
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class User
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module Authorization
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def self.included(base)
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base.extend(ClassMethods)
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base.private_class_method :eager_load_for_project_authorization
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base.private_class_method :reset_associations_eager_loaded_for_project_authorization
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end
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module ClassMethods
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def authorize_within(project, &block)
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base_scope = current_scope || scoped
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auth_scope = eager_load_for_project_authorization(base_scope, project)
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returned_users = block.call(auth_scope)
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unless returned_users.is_a?(Array) && returned_users.all? { |e| e.is_a?(User) }
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raise ArgumentError, 'Expect an array of users to be returned by the block'
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end
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reset_associations_eager_loaded_for_project_authorization(returned_users, project)
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returned_users
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end
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def eager_load_for_project_authorization(base_scope, project)
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registered_allowance_evaluators.inject(base_scope) do |scope, evaluator|
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evaluator_scope = evaluator.eager_load_for_project_authorization(project)
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if evaluator_scope.nil?
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scope
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else
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scope.merge(evaluator_scope)
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end
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end
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end
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# Prevent harmful side effects by the limited loading
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# (e.g. WHERE members.project_id = 1) of associations for the project
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# authorization.
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def reset_associations_eager_loaded_for_project_authorization(users, project)
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auth_scope = eager_load_for_project_authorization(scoped, project)
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to_clear = reflect_on_all_associations.map(&:name) &
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auth_scope.eager_load_values.map(&:keys).flatten.uniq
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users.each do |user|
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# For reasons I don't understand #reset does not clear
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# the loaded flag on the association. Documentation says it should.
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user.association_cache.except!(*to_clear)
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end
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users
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end
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end
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end
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end
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