2018-11-09 18:39:43 +00:00
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# frozen_string_literal: true
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2016-08-18 14:31:44 +00:00
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require 'fileutils'
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2016-03-24 11:28:43 +00:00
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module Gitlab
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module Gfm
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##
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# Class that rewrites markdown links for uploads
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#
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2016-03-29 11:21:57 +00:00
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# Using a pattern defined in `FileUploader` it copies files to a new
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2018-11-19 14:08:23 +00:00
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# project and rewrites all links to uploads in a given text.
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2016-03-29 11:21:57 +00:00
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#
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2016-03-24 11:28:43 +00:00
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#
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class UploadsRewriter
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def initialize(text, source_project, _current_user)
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@text = text
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@source_project = source_project
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@pattern = FileUploader::MARKDOWN_PATTERN
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end
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2018-10-29 09:05:47 +00:00
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def rewrite(target_parent)
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2016-03-30 08:42:39 +00:00
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return @text unless needs_rewrite?
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2016-03-24 11:28:43 +00:00
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2016-03-29 11:21:57 +00:00
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@text.gsub(@pattern) do |markdown|
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file = find_file(@source_project, $~[:secret], $~[:file])
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2018-04-18 09:19:40 +00:00
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break markdown unless file.try(:exists?)
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2016-03-24 11:28:43 +00:00
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2018-10-29 09:05:47 +00:00
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klass = target_parent.is_a?(Namespace) ? NamespaceFileUploader : FileUploader
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moved = klass.copy_to(file, target_parent)
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2018-06-28 14:57:28 +00:00
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moved.markdown_link
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2016-03-24 11:28:43 +00:00
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end
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end
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2016-03-29 11:21:57 +00:00
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def needs_rewrite?
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files.any?
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2016-03-24 11:28:43 +00:00
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end
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def files
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referenced_files = @text.scan(@pattern).map do
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find_file(@source_project, $~[:secret], $~[:file])
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end
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referenced_files.compact.select(&:exists?)
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end
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private
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def find_file(project, secret, file)
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2018-01-29 21:06:17 +00:00
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uploader = FileUploader.new(project, secret: secret)
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2016-03-24 11:28:43 +00:00
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uploader.retrieve_from_store!(file)
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2018-06-28 14:57:28 +00:00
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uploader
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2016-08-18 14:31:44 +00:00
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end
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2016-03-24 11:28:43 +00:00
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end
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end
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end
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