265 lines
9.7 KiB
C++
265 lines
9.7 KiB
C++
/* Copyright (C) 2004 Bart
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "FileSystem.h"
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#include "GParted_Core.h"
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#include <cerrno>
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#include <iostream>
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#include <gtkmm/main.h>
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#include <signal.h>
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#include <fcntl.h>
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#include <sigc++/slot.h>
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namespace GParted
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{
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FileSystem::FileSystem()
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{
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}
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const Glib::ustring FileSystem::get_custom_text( CUSTOM_TEXT ttype, int index ) const
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{
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return get_generic_text( ttype, index ) ;
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}
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const Glib::ustring FileSystem::get_generic_text( CUSTOM_TEXT ttype, int index )
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{
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/*TO TRANSLATORS: these labels will be used in the partition menu */
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static const Glib::ustring activate_text = _( "_Mount" ) ;
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static const Glib::ustring deactivate_text = _( "_Unmount" ) ;
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switch ( ttype ) {
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case CTEXT_ACTIVATE_FILESYSTEM :
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return index == 0 ? activate_text : "" ;
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case CTEXT_DEACTIVATE_FILESYSTEM :
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return index == 0 ? deactivate_text : "" ;
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default :
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return "" ;
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}
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}
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void FileSystem::store_exit_status( GPid pid, int status )
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{
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exit_status = Utils::decode_wait_status( status );
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running = false;
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if (pipecount == 0) // pipes finished first
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Gtk::Main::quit();
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Glib::spawn_close_pid( pid );
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}
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//Callback passing the latest partial output from the external command
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// to operation detail for updating in the UI
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static void update_command_output( OperationDetail *operationdetail, Glib::ustring *str )
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{
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operationdetail->set_description( *str, FONT_ITALIC );
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}
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static void cancel_command( bool force, Glib::Pid pid, bool cancel_safe )
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{
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if( force || cancel_safe )
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kill( -pid, SIGINT );
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}
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static void setup_child()
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{
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setpgrp();
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}
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int FileSystem::execute_command( const Glib::ustring & command, OperationDetail & operationdetail,
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ExecFlags flags )
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{
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StreamSlot empty_stream_slot;
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TimedSlot empty_timed_slot;
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return execute_command_internal( command, operationdetail, flags, empty_stream_slot, empty_timed_slot );
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}
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int FileSystem::execute_command( const Glib::ustring & command, OperationDetail & operationdetail,
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ExecFlags flags,
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StreamSlot stream_progress_slot )
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{
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TimedSlot empty_timed_slot;
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return execute_command_internal( command, operationdetail, flags, stream_progress_slot, empty_timed_slot );
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}
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int FileSystem::execute_command( const Glib::ustring & command, OperationDetail & operationdetail,
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ExecFlags flags,
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TimedSlot timed_progress_slot )
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{
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StreamSlot empty_stream_slot;
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return execute_command_internal( command, operationdetail, flags, empty_stream_slot, timed_progress_slot );
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}
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int FileSystem::execute_command_internal( const Glib::ustring & command, OperationDetail & operationdetail,
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ExecFlags flags,
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StreamSlot stream_progress_slot,
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TimedSlot timed_progress_slot )
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{
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operationdetail.add_child( OperationDetail( command, STATUS_EXECUTE, FONT_BOLD_ITALIC ) );
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OperationDetail & cmd_operationdetail = operationdetail.get_last_child();
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Glib::Pid pid;
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// set up pipes for capture
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int out, err;
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// spawn external process
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running = true;
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try {
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Glib::spawn_async_with_pipes(
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std::string( "." ),
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Glib::shell_parse_argv( command ),
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Glib::SPAWN_DO_NOT_REAP_CHILD | Glib::SPAWN_SEARCH_PATH,
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sigc::ptr_fun(setup_child),
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&pid,
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0,
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&out,
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&err );
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} catch (Glib::SpawnError &e) {
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std::cerr << e.what() << std::endl;
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cmd_operationdetail.add_child( OperationDetail( e.what(), STATUS_ERROR, FONT_ITALIC ) );
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return Utils::get_failure_status( e );
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}
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fcntl( out, F_SETFL, O_NONBLOCK );
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fcntl( err, F_SETFL, O_NONBLOCK );
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Glib::signal_child_watch().connect( sigc::mem_fun( *this, &FileSystem::store_exit_status ), pid );
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output.clear();
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error.clear();
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pipecount = 2;
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PipeCapture outputcapture( out, output );
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PipeCapture errorcapture( err, error );
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outputcapture.signal_eof.connect( sigc::mem_fun( *this, &FileSystem::execute_command_eof ) );
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errorcapture.signal_eof.connect( sigc::mem_fun( *this, &FileSystem::execute_command_eof ) );
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cmd_operationdetail.add_child( OperationDetail( output, STATUS_NONE, FONT_ITALIC ) );
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cmd_operationdetail.add_child( OperationDetail( error, STATUS_NONE, FONT_ITALIC ) );
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std::vector<OperationDetail*> &children = cmd_operationdetail.get_childs();
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outputcapture.signal_update.connect( sigc::bind( sigc::ptr_fun( update_command_output ),
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children[children.size() - 2],
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&output ) );
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errorcapture.signal_update.connect( sigc::bind( sigc::ptr_fun( update_command_output ),
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children[children.size() - 1],
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&error ) );
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sigc::connection timed_conn;
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if ( flags & EXEC_PROGRESS_STDOUT && ! stream_progress_slot.empty() )
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// Call progress tracking callback when stdout updates
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outputcapture.signal_update.connect( sigc::bind( stream_progress_slot, &cmd_operationdetail ) );
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else if ( flags & EXEC_PROGRESS_STDERR && ! stream_progress_slot.empty() )
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// Call progress tracking callback when stderr updates
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errorcapture.signal_update.connect( sigc::bind( stream_progress_slot, &cmd_operationdetail ) );
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else if ( flags & EXEC_PROGRESS_TIMED && ! timed_progress_slot.empty() )
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// Call progress tracking callback every 500 ms
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timed_conn = Glib::signal_timeout().connect( sigc::bind( timed_progress_slot, &cmd_operationdetail ), 500 );
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outputcapture.connect_signal();
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errorcapture.connect_signal();
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cmd_operationdetail.signal_cancel.connect(
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sigc::bind(
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sigc::ptr_fun( cancel_command ),
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pid,
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flags & EXEC_CANCEL_SAFE ) );
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Gtk::Main::run();
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if ( flags & EXEC_CHECK_STATUS )
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{
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if ( !exit_status )
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cmd_operationdetail.set_status( STATUS_SUCCES );
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else
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cmd_operationdetail.set_status( STATUS_ERROR );
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}
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close( out );
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close( err );
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if ( timed_conn.connected() )
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timed_conn.disconnect();
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cmd_operationdetail.stop_progressbar();
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return exit_status;
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}
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void FileSystem::set_status( OperationDetail & operationdetail, bool success )
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{
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operationdetail.get_last_child().set_status( success ? STATUS_SUCCES : STATUS_ERROR );
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}
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void FileSystem::execute_command_eof()
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{
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if (--pipecount)
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return; // wait for second pipe to eof
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if ( !running ) // already got exit status
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Gtk::Main::quit();
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}
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//Create uniquely named temporary directory and add results to operation detail
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Glib::ustring FileSystem::mk_temp_dir( const Glib::ustring & infix, OperationDetail & operationdetail )
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{
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// Construct template like "$TMPDIR/gparted-XXXXXX" or "$TMPDIR/gparted-INFIX-XXXXXX"
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Glib::ustring dir_template = Glib::get_tmp_dir() + "/gparted-" ;
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if ( ! infix .empty() )
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dir_template += infix + "-" ;
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dir_template += "XXXXXX" ;
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//Secure Programming for Linux and Unix HOWTO, Chapter 6. Avoid Buffer Overflow
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// http://tldp.org/HOWTO/Secure-Programs-HOWTO/library-c.html
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char dir_buf[4096+1];
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sprintf( dir_buf, "%.*s", (int) sizeof(dir_buf)-1, dir_template .c_str() ) ;
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//Looks like "mkdir -v" command was run to the user
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operationdetail .add_child( OperationDetail(
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Glib::ustring( "mkdir -v " ) + dir_buf, STATUS_EXECUTE, FONT_BOLD_ITALIC ) ) ;
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const char * dir_name = mkdtemp( dir_buf ) ;
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if ( NULL == dir_name )
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{
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int e = errno ;
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operationdetail .get_last_child() .set_status( STATUS_ERROR ) ;
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operationdetail .get_last_child() .add_child( OperationDetail(
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String::ucompose( "mkdtemp(%1): %2", dir_buf, Glib::strerror( e ) ), STATUS_NONE ) ) ;
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dir_name = "" ;
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}
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else
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{
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//Update command with actually created temporary directory
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operationdetail .get_last_child() .set_description(
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Glib::ustring( "mkdir -v " ) + dir_name, FONT_BOLD_ITALIC ) ;
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operationdetail .get_last_child() .set_status( STATUS_SUCCES ) ;
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operationdetail .get_last_child() .add_child( OperationDetail(
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/*TO TRANSLATORS: looks like Created directory /tmp/gparted-CEzvSp */
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String::ucompose( _("Created directory %1"), dir_name ), STATUS_NONE ) ) ;
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}
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return Glib::ustring( dir_name ) ;
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}
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//Remove directory and add results to operation detail
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void FileSystem::rm_temp_dir( const Glib::ustring dir_name, OperationDetail & operationdetail )
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{
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//Looks like "rmdir -v" command was run to the user
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operationdetail .add_child( OperationDetail( Glib::ustring( "rmdir -v " ) + dir_name,
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STATUS_EXECUTE, FONT_BOLD_ITALIC ) ) ;
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if ( rmdir( dir_name .c_str() ) )
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{
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//Don't mark operation as errored just because rmdir
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// failed. Set to Warning (N/A) instead.
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int e = errno ;
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operationdetail .get_last_child() .set_status( STATUS_SUCCES ) ; //Stop timer
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operationdetail .get_last_child() .set_status( STATUS_N_A ) ;
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operationdetail .get_last_child() .add_child( OperationDetail(
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String::ucompose( "rmdir(%1): ", dir_name ) + Glib::strerror( e ), STATUS_NONE ) ) ;
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}
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else
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{
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operationdetail .get_last_child() .set_status( STATUS_SUCCES ) ;
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operationdetail .get_last_child() .add_child( OperationDetail(
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/*TO TRANSLATORS: looks like Removed directory /tmp/gparted-CEzvSp */
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String::ucompose( _("Removed directory %1"), dir_name ), STATUS_NONE ) ) ;
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}
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}
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} //GParted
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