87 lines
2.2 KiB
Ruby
87 lines
2.2 KiB
Ruby
# frozen_string_literal: true
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# Module to prepend into finders to specify whether or not the finder requires
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# cross project access
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#
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# This module depends on the finder implementing the following methods:
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#
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# - `#execute` should return an `ActiveRecord::Relation` or the `model` needs to
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# be defined in the call to `requires_cross_project_access`.
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# - `#current_user` the user that requires access (or nil)
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module FinderWithCrossProjectAccess
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extend ActiveSupport::Concern
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extend ::Gitlab::Utils::Override
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prepended do
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extend Gitlab::CrossProjectAccess::ClassMethods
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cattr_accessor :finder_model
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def self.requires_cross_project_access(*args)
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super
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self.finder_model = extract_model_from_arguments(args)
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end
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private
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def self.extract_model_from_arguments(args)
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args.detect { |argument| argument.is_a?(Hash) && argument[:model] }
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&.fetch(:model)
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end
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end
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override :execute
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def execute(*args, **kwargs)
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check = Gitlab::CrossProjectAccess.find_check(self)
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original = -> { super }
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return original.call unless check
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return original.call if should_skip_cross_project_check || can_read_cross_project?
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if check.should_run?(self)
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finder_model&.none || original.call.model.none
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else
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original.call
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end
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end
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# We can skip the cross project check for finding indivitual records.
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# this would be handled by the `can?(:read_*, result)` call in `FinderMethods`
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# itself.
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override :find_by!
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def find_by!(*args)
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skip_cross_project_check { super }
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end
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override :find_by
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def find_by(*args)
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skip_cross_project_check { super }
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end
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override :find
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def find(*args)
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skip_cross_project_check { super }
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end
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attr_accessor :should_skip_cross_project_check
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def skip_cross_project_check
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self.should_skip_cross_project_check = true
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yield
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ensure
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# The find could raise an `ActiveRecord::RecordNotFound`, after which we
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# still want to re-enable the check.
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self.should_skip_cross_project_check = false
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end
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def can_read_cross_project?
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Ability.allowed?(current_user, :read_cross_project)
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end
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def can_read_project?(project)
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Ability.allowed?(current_user, :read_project, project)
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end
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end
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