67 lines
1.5 KiB
Ruby
67 lines
1.5 KiB
Ruby
require 'gitlab/markdown'
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require 'html/pipeline/filter'
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module Gitlab
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module Markdown
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# HTML filter that removes references to records that the current user does
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# not have permission to view.
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#
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# Expected to be run in its own post-processing pipeline.
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#
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class RedactorFilter < HTML::Pipeline::Filter
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def call
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doc.css('a.gfm').each do |node|
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unless user_can_reference?(node)
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node.replace(node.text)
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end
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end
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doc
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end
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def user_can_reference?(node)
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if node.has_attribute?('data-group-id')
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user_can_reference_group?(node.attr('data-group-id'))
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elsif node.has_attribute?('data-project-id')
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user_can_reference_project?(node.attr('data-project-id'))
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elsif node.has_attribute?('data-user-id')
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user_can_reference_user?(node.attr('data-user-id'))
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else
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true
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end
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end
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def user_can_reference_group?(id)
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group = Group.find(id)
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group && can?(:read_group, group)
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end
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def user_can_reference_project?(id)
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project = Project.find(id)
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project && can?(:read_project, project)
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end
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def user_can_reference_user?(id)
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# Permit all user reference links
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true
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end
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private
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def abilities
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Ability.abilities
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end
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def can?(ability, object)
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abilities.allowed?(current_user, ability, object)
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end
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def current_user
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context[:current_user]
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end
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end
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end
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end
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