C///

\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// # encoding: utf-8 # author: Dominik Richter # author: Christoph Hartmann require "base64" require_relative "../errors" module Train::Extras # Define the interface of all command wrappers. class CommandWrapperBase # Verify that the command wrapper is initialized properly and working. # # @return [Any] verification result, nil if all went well, otherwise a message def verify raise Train::ClientError, "#{self.class} does not implement #verify()" end # Wrap a command and return the augmented command which can be executed. # # @param [Strin] command that will be wrapper # @return [String] result of wrapping the command def run(_command) raise Train::ClientError, "#{self.class} does not implement #run(command)" end end # Wrap linux commands and add functionality like sudo. class LinuxCommand < CommandWrapperBase Train::Options.attach(self) option :shell, default: false option :shell_options, default: nil option :shell_command, default: nil option :sudo, default: false option :sudo_options, default: nil option :sudo_password, default: nil option :sudo_command, default: nil option :user attr_reader :backend def initialize(backend, options) @backend = backend validate_options(options) @shell = options[:shell] @shell_options = options[:shell_options] # e.g. '--login' @shell_command = options[:shell_command] # e.g. '/bin/sh' @sudo = options[:sudo] @sudo_options = options[:sudo_options] @sudo_password = options[:sudo_password] @sudo_command = options[:sudo_command] @user = options[:user] end # (see CommandWrapperBase::verify) def verify # Do nothing, successfully. Don't use "true", that's not available on Windows. cmd = if @sudo # Wrap it up. It needs /dev/null on the outside to disable stdin "sh -c '(#{run("echo")}) < /dev/null'" else run("echo") end # rubocop:disable Style/BlockDelimiters res = @backend.with_sudo_pty { @backend.run_command(cmd) } return nil if res.exit_status == 0 rawerr = "#{res.stdout} #{res.stderr}".strip case rawerr when /Sorry, try again/ ["Wrong sudo password.", :bad_sudo_password] when /sudo: no tty present and no askpass program specified/ ["Sudo requires a password, please configure it.", :sudo_password_required] when /sudo: command not found/ ["Can't find sudo command. Please either install and "\ "configure it on the target or deactivate sudo.", :sudo_command_not_found] when /sudo: sorry, you must have a tty to run sudo/ ["Sudo requires a TTY. Please see the README on how to configure "\ "sudo to allow for non-interactive usage.", :sudo_no_tty] else [rawerr, nil] end end def verify! msg, reason = verify return nil unless msg raise Train::UserError.new("Sudo failed: #{msg}", reason) end # (see CommandWrapperBase::run) def run(command) shell_wrap(sudo_wrap(command)) end def self.active?(options) options.is_a?(Hash) && ( options[:sudo] || options[:shell] ) end private # wrap the cmd in a sudo command def sudo_wrap(cmd) return cmd unless @sudo return cmd if @user == "root" res = (@sudo_command || "sudo") + " " if @sudo_password str = safe_string(@sudo_password + "\n") res = "#{str} | #{res}-S " end res << "#{@sudo_options} " if @sudo_options res + cmd end # wrap the cmd in a subshell allowing for options to # passed to the subshell def shell_wrap(cmd) return cmd unless @shell shell = @shell_command || "$SHE