70 lines
2.2 KiB
Ruby
70 lines
2.2 KiB
Ruby
# frozen_string_literal: true
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module ThemeStore; end
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class ThemeStore::TgzExporter
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def initialize(theme)
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@theme = theme
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@temp_folder = "#{Pathname.new(Dir.tmpdir).realpath}/discourse_theme_#{SecureRandom.hex}"
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@export_name = @theme.name.downcase.gsub(/[^0-9a-z.\-]/, '-')
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@export_name = "discourse-#{@export_name}" unless @export_name.starts_with?("discourse")
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end
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def export_name
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@export_name
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end
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def package_filename
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export_package
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end
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def cleanup!
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FileUtils.rm_rf(@temp_folder)
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end
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def export_to_folder
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FileUtils.mkdir(@temp_folder)
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Dir.chdir(@temp_folder) do
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FileUtils.mkdir(@export_name)
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@theme.theme_fields.each do |field|
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next unless path = field.file_path
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# Belt and braces approach here. All the user input should already be
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# sanitized, but check for attempts to leave the temp directory anyway
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pathname = Pathname.new("#{@export_name}/#{path}")
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folder_path = pathname.parent.cleanpath
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raise RuntimeError.new("Theme exporter tried to leave directory") unless folder_path.to_s.starts_with?("#{@export_name}")
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pathname.parent.mkpath
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path = pathname.realdirpath
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raise RuntimeError.new("Theme exporter tried to leave directory") unless path.to_s.starts_with?("#{@temp_folder}/#{@export_name}")
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if ThemeField.types[field.type_id] == :theme_upload_var
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filename = Discourse.store.path_for(field.upload)
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content = filename ? File.read(filename) : Discourse.store.download(field.upload).read
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else
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content = field.value
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end
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File.write(path, content)
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end
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File.write("#{@export_name}/about.json", JSON.pretty_generate(@theme.generate_metadata_hash))
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end
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@temp_folder
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end
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private
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def export_package
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export_to_folder
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Dir.chdir(@temp_folder) do
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tar_filename = "#{@export_name}.tar"
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Discourse::Utils.execute_command('tar', '--create', '--file', tar_filename, @export_name, failure_message: "Failed to tar theme.")
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Discourse::Utils.execute_command('gzip', '-5', tar_filename, failure_message: "Failed to gzip archive.")
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"#{@temp_folder}/#{tar_filename}.gz"
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end
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end
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end
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