82 lines
2.2 KiB
Ruby
82 lines
2.2 KiB
Ruby
# frozen_string_literal: true
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module Wikis
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class CreateAttachmentService < Files::CreateService
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ATTACHMENT_PATH = 'uploads'
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MAX_FILENAME_LENGTH = 255
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attr_reader :container
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delegate :wiki, to: :container
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delegate :repository, to: :wiki
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def initialize(container:, current_user: nil, params: {})
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super(nil, current_user, params)
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@container = container
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@file_name = clean_file_name(params[:file_name])
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@file_path = File.join(ATTACHMENT_PATH, SecureRandom.hex, @file_name) if @file_name
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@commit_message ||= "Upload attachment #{@file_name}"
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@branch_name ||= wiki.default_branch
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end
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def create_commit!
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commit_result(create_transformed_commit(@file_content))
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end
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private
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def clean_file_name(file_name)
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return unless file_name.present?
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file_name = truncate_file_name(file_name)
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# CommonMark does not allow Urls with whitespaces, so we have to replace them
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# Using the same regex Carrierwave use to replace invalid characters
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file_name.gsub(CarrierWave::SanitizedFile.sanitize_regexp, '_')
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end
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def truncate_file_name(file_name)
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return file_name if file_name.length <= MAX_FILENAME_LENGTH
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extension = File.extname(file_name)
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truncate_at = MAX_FILENAME_LENGTH - extension.length - 1
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base_name = File.basename(file_name, extension)[0..truncate_at]
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base_name + extension
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end
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def validate!
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validate_file_name!
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validate_permissions!
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end
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def validate_file_name!
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raise_error('The file name cannot be empty') unless @file_name
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end
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def validate_permissions!
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unless can?(current_user, :create_wiki, container)
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raise_error('You are not allowed to push to the wiki')
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end
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end
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def create_transformed_commit(content)
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repository.create_file(
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current_user,
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@file_path,
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content,
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message: @commit_message,
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branch_name: @branch_name,
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author_email: @author_email,
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author_name: @author_name)
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end
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def commit_result(commit_id)
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{
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file_name: @file_name,
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file_path: @file_path,
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branch: @branch_name,
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commit: commit_id
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}
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end
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end
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end
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