class AsciicastParams FormatError = Class.new(StandardError) def self.build(asciicast_params, user, user_agent) if asciicast_params.try(:respond_to?, :read) from_format_1_request(asciicast_params, user, user_agent) else from_format_0_request(asciicast_params, user, user_agent) end end def self.from_format_0_request(params, user, user_agent) meta = params.delete(:meta) attributes = { command: meta['command'], duration: meta['duration'], shell: meta['shell'], stdin_data: params[:stdin], stdin_timing: params[:stdin_timing], stdout_data: params[:stdout], stdout_timing: params[:stdout_timing], terminal_columns: meta['term']['columns'], terminal_lines: meta['term']['lines'], terminal_type: meta['term']['type'], title: meta['title'], user: user, version: 0, } if meta['uname'] # old client, with useless user_agent attributes[:uname] = meta['uname'] else attributes[:user_agent] = user_agent end attributes end def self.from_format_1_request(asciicast_file, user, user_agent) begin asciicast = Oj.sc_parse(AsciicastHandler.new, asciicast_file) rescue Oj::ParseError raise FormatError, "This doesn't look like a valid asciicast file" end version = asciicast['version'] if version != 1 raise FormatError, "Unsupported asciicast format version: #{version}" end env = asciicast['env'] { command: asciicast['command'], duration: asciicast['duration'], file: asciicast_file, shell: env && env['SHELL'], terminal_columns: asciicast['width'], terminal_lines: asciicast['height'], terminal_type: env && env['TERM'], title: asciicast['title'], user: user, user_agent: user_agent, version: version, } end class AsciicastHandler < ::Oj::ScHandler META_ATTRIBUTES = %w[version width height duration command title env SHELL TERM] def hash_start {} end def hash_set(h, k, v) if META_ATTRIBUTES.include?(k) h[k] = v end end end end