debian-mirror-gitlab/app/services/markdown_content_rewriter_service.rb

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2020-10-24 23:57:45 +05:30
# frozen_string_literal: true
# This service passes Markdown content through our GFM rewriter classes
# which rewrite references to GitLab objects and uploads within the content
# based on their visibility by the `target_parent`.
class MarkdownContentRewriterService
REWRITERS = [Gitlab::Gfm::ReferenceRewriter, Gitlab::Gfm::UploadsRewriter].freeze
def initialize(current_user, content, source_parent, target_parent)
# See https://gitlab.com/gitlab-org/gitlab/-/merge_requests/39654#note_399095117
raise ArgumentError, 'The rewriter classes require that `source_parent` is a `Project`' \
unless source_parent.is_a?(Project)
@current_user = current_user
@content = content.presence
@source_parent = source_parent
@target_parent = target_parent
end
def execute
return unless content
REWRITERS.inject(content) do |text, klass|
rewriter = klass.new(text, source_parent, current_user)
rewriter.rewrite(target_parent)
end
end
private
attr_reader :current_user, :content, :source_parent, :target_parent
end