modules/Command.pm

   1 package Command;
   2
   3 #
   4 # Dev-Editor - Module Command
   5 #
   6 # Execute Dev-Editor's commands
   7 #
   8 # Author:        Patrick Canterino <patrick@patshaping.de>
   9 # Last modified: 2005-04-22
  10 #
  11
  12 use strict;
  13
  14 use vars qw(@EXPORT);
  15
  16 use Fcntl;
  17 use File::Access;
  18 use File::Copy;
  19 use File::Path;
  20
  21 use Digest::MD5 qw(md5_hex);
  22 use POSIX qw(strftime);
  23 use Tool;
  24
  25 use CGI qw(header
  26            escape);
  27
  28 use Output;
  29 use Template;
  30
  31 my $script = encode_html($ENV{'SCRIPT_NAME'});
  32 my $users  = eval('getpwuid(0)') && eval('getgrgid(0)');
  33
  34 my %dispatch = ('show'       => \&exec_show,
  35                 'beginedit'  => \&exec_beginedit,
  36                 'endedit'    => \&exec_endedit,
  37                 'mkdir'      => \&exec_mkdir,
  38                 'mkfile'     => \&exec_mkfile,
  39                 'upload'     => \&exec_upload,
  40                 'copy'       => \&exec_copy,
  41                 'rename'     => \&exec_rename,
  42                 'remove'     => \&exec_remove,
  43                 'chprop'     => \&exec_chprop,
  44                 'about'      => \&exec_about
  45                );
  46
  47 ### Export ###
  48
  49 use base qw(Exporter);
  50
  51 @EXPORT = qw(exec_command);
  52
  53 # exec_command()
  54 #
  55 # Execute the specified command
  56 #
  57 # Params: 1. Command to execute
  58 #         2. Reference to user input hash
  59 #         3. Reference to config hash
  60 #
  61 # Return: Output of the command (Scalar Reference)
  62
  63 sub exec_command($$$)
  64 {
  65  my ($command,$data,$config) = @_;
  66
  67  foreach(keys(%dispatch))
  68  {
  69   if(lc($_) eq lc($command))
  70   {
  71    my $output = &{$dispatch{$_}}($data,$config);
  72    return $output;
  73   }
  74  }
  75
  76  return error($config->{'errors'}->{'command_unknown'},'/',{COMMAND => encode_html($command)});
  77 }
  78
  79 # exec_show()
  80 #
  81 # View a directory or a file
  82 #
  83 # Params: 1. Reference to user input hash
  84 #         2. Reference to config hash
  85 #
  86 # Return: Output of the command (Scalar Reference)
  87
  88 sub exec_show($$)
  89 {
  90  my ($data,$config) = @_;
  91  my $physical       = $data->{'physical'};
  92  my $virtual        = $data->{'virtual'};
  93  my $upper_path     = multi_string(upper_path($virtual));
  94
  95  my $tpl = new Template;
  96
  97  if(-d $physical && not -l $physical)
  98  {
  99   # Create directory listing
 100
 101   return error($config->{'errors'}->{'no_dir_access'},$upper_path->{'normal'}) unless(-r $physical && -x $physical);
 102
 103   my $direntries = dir_read($physical);
 104   return error($config->{'errors'}->{'dir_read_fail'},$upper_path->{'normal'},{DIR => encode_html($virtual)}) unless($direntries);
 105
 106   my $files = $direntries->{'files'};
 107   my $dirs  = $direntries->{'dirs'};
 108
 109   my $dirlist = '';
 110
 111   my $filter1 = $data->{'cgi'}->param('filter') || '*';        # The real wildcard
 112   my $filter2 = ($filter1 && $filter1 ne '*') ? $filter1 : ''; # Wildcard for output
 113
 114   # Create the link to the upper directory
 115   # (only if the current directory is not the root directory)
 116
 117   unless($virtual eq '/')
 118   {
 119    my @stat  = stat($physical.'/..');
 120
 121    my $udtpl = new Template;
 122    $udtpl->read_file($config->{'templates'}->{'dirlist_up'});
 123
 124    $udtpl->fillin('UPPER_DIR',$upper_path->{'html'});
 125    $udtpl->fillin('UPPER_DIR_URL',$upper_path->{'url'});
 126    $udtpl->fillin('DATE',encode_html(strftime($config->{'timeformat'},($config->{'use_gmt'}) ? gmtime($stat[9]) : localtime($stat[9]))));
 127
 128    $dirlist .= $udtpl->get_template;
 129   }
 130
 131   # Directories
 132
 133   foreach my $dir(@$dirs)
 134   {
 135    next unless(dos_wildcard_match($filter1,$dir));
 136
 137    my $phys_path = $physical.'/'.$dir;
 138    my $virt_path = multi_string($virtual.$dir.'/');
 139
 140    my @stat      = stat($phys_path);
 141
 142    my $dtpl = new Template;
 143    $dtpl->read_file($config->{'templates'}->{'dirlist_dir'});
 144
 145    $dtpl->fillin('DIR',$virt_path->{'html'});
 146    $dtpl->fillin('DIR_URL',$virt_path->{'url'});
 147    $dtpl->fillin('DIR_NAME',encode_html($dir));
 148    $dtpl->fillin('DATE',encode_html(strftime($config->{'timeformat'},($config->{'use_gmt'}) ? gmtime($stat[9]) : localtime($stat[9]))));
 149    $dtpl->fillin('URL',equal_url(encode_html($config->{'httproot'}),$virt_path->{'html'}));
 150
 151    $dtpl->parse_if_block('readable',-r $phys_path && -x $phys_path);
 152    $dtpl->parse_if_block('users',$users && -o $phys_path);
 153
 154    $dirlist .= $dtpl->get_template;
 155   }
 156
 157   # Files
 158
 159   foreach my $file(@$files)
 160   {
 161    next unless(dos_wildcard_match($filter1,$file));
 162
 163    my $phys_path = $physical.'/'.$file;
 164    my $virt_path = multi_string($virtual.$file);
 165
 166    my @stat      = lstat($phys_path);
 167    my $too_large = $config->{'max_file_size'} && $stat[7] > $config->{'max_file_size'};
 168
 169    my $ftpl = new Template;
 170    $ftpl->read_file($config->{'templates'}->{'dirlist_file'});
 171
 172    $ftpl->fillin('FILE',$virt_path->{'html'});
 173    $ftpl->fillin('FILE_URL',$virt_path->{'url'});
 174    $ftpl->fillin('FILE_NAME',encode_html($file));
 175    $ftpl->fillin('FILE_URL',$virt_path->{'url'});
 176    $ftpl->fillin('SIZE',$stat[7]);
 177    $ftpl->fillin('DATE',encode_html(strftime($config->{'timeformat'},($config->{'use_gmt'}) ? gmtime($stat[9]) : localtime($stat[9]))));
 178    $ftpl->fillin('URL',equal_url(encode_html($config->{'httproot'}),$virt_path->{'html'}));
 179
 180    $ftpl->parse_if_block('link',-l $phys_path);
 181    $ftpl->parse_if_block('no_link',not -l $phys_path);
 182    $ftpl->parse_if_block('not_readable',not -r $phys_path);
 183    $ftpl->parse_if_block('binary',-B $phys_path);
 184    $ftpl->parse_if_block('readonly',not -w $phys_path);
 185
 186    $ftpl->parse_if_block('viewable',(-r $phys_path && -T $phys_path && not $too_large) || -l $phys_path);
 187    $ftpl->parse_if_block('editable',(-r $phys_path && -w $phys_path && -T $phys_path && not $too_large) && not -l $phys_path);
 188
 189    $ftpl->parse_if_block('too_large',$config->{'max_file_size'} && $stat[7] > $config->{'max_file_size'});
 190
 191    $ftpl->parse_if_block('users',$users && -o $phys_path);
 192
 193    $dirlist .= $ftpl->get_template;
 194   }
 195
 196   $tpl->read_file($config->{'templates'}->{'dirlist'});
 197
 198   $tpl->fillin('DIRLIST',$dirlist);
 199   $tpl->fillin('DIR',encode_html($virtual));
 200   $tpl->fillin('DIR_URL',escape($virtual));
 201   $tpl->fillin('SCRIPT',$script);
 202   $tpl->fillin('URL',encode_html(equal_url($config->{'httproot'},$virtual)));
 203
 204   $tpl->fillin('FILTER',encode_html($filter2));
 205   $tpl->fillin('FILTER_URL',escape($filter2));
 206
 207   $tpl->parse_if_block('empty',$dirlist eq '');
 208   $tpl->parse_if_block('dir_writeable',-w $physical);
 209   $tpl->parse_if_block('filter',$filter2);
 210   $tpl->parse_if_block('gmt',$config->{'use_gmt'});
 211  }
 212  elsif(-l $physical)
 213  {
 214   # Show the target of a symbolic link
 215
 216   my $link_target = readlink($physical);
 217
 218   $tpl->read_file($config->{'templates'}->{'viewlink'});
 219
 220   $tpl->fillin('FILE',encode_html($virtual));
 221   $tpl->fillin('DIR',$upper_path->{'html'});
 222   $tpl->fillin('DIR_URL',$upper_path->{'url'});
 223   $tpl->fillin('URL',encode_html(equal_url($config->{'httproot'},$virtual)));
 224   $tpl->fillin('SCRIPT',$script);
 225
 226   $tpl->fillin('LINK_TARGET',encode_html($link_target));
 227  }
 228  else
 229  {
 230   # View a file
 231
 232   return error($config->{'errors'}->{'no_view'},$upper_path->{'normal'}) unless(-r $physical);
 233
 234   # Check on binary files
 235   # We have to do it in this way or empty files will be recognized
 236   # as binary files
 237
 238   return error($config->{'errors'}->{'binary_file'},$upper_path->{'normal'}) unless(-T $physical);
 239
 240   # Is the file too large?
 241
 242   return error($config->{'errors'}->{'file_too_large'},$upper_path->{'normal'},{SIZE => $config->{'max_file_size'}}) if($config->{'max_file_size'} && -s $physical > $config->{'max_file_size'});
 243
 244   # View the file
 245
 246   my $content =  file_read($physical);
 247   $$content   =~ s/\015\012|\012|\015/\n/g;
 248
 249   $tpl->read_file($config->{'templates'}->{'viewfile'});
 250
 251   $tpl->fillin('FILE',encode_html($virtual));
 252   $tpl->fillin('FILE_URL',escape($virtual));
 253   $tpl->fillin('DIR',$upper_path->{'html'});
 254   $tpl->fillin('DIR_URL',$upper_path->{'url'});
 255   $tpl->fillin('URL',encode_html(equal_url($config->{'httproot'},$virtual)));
 256   $tpl->fillin('SCRIPT',$script);
 257
 258   $tpl->parse_if_block('editable',-w $physical);
 259
 260   $tpl->fillin('CONTENT',encode_html($$content));
 261  }
 262
 263  my $output  = header(-type => 'text/html');
 264  $output    .= $tpl->get_template;
 265
 266  return \$output;
 267 }
 268
 269 # exec_beginedit
 270 #
 271 # Lock a file and display a form to edit it
 272 #
 273 # Params: 1. Reference to user input hash
 274 #         2. Reference to config hash
 275 #
 276 # Return: Output of the command (Scalar Reference)
 277
 278 sub exec_beginedit($$)
 279 {
 280  my ($data,$config) = @_;
 281  my $physical       = $data->{'physical'};
 282  my $virtual        = $data->{'virtual'};
 283  my $dir            = upper_path($virtual);
 284  my $cgi            = $data->{'cgi'};
 285
 286  return error($config->{'errors'}->{'link_edit'},$dir) if(-l $physical);
 287  return error($config->{'errors'}->{'dir_edit'}, $dir) if(-d $physical);
 288  return error($config->{'errors'}->{'no_edit'},  $dir) unless(-r $physical && -w $physical);
 289
 290  # Check on binary files
 291
 292  return error($config->{'errors'}->{'binary_file'},$dir) unless(-T $physical);
 293
 294  # Is the file too large?
 295
 296  return error($config->{'errors'}->{'file_too_large'},$dir,{SIZE => $config->{'max_file_size'}}) if($config->{'max_file_size'} && -s $physical > $config->{'max_file_size'});
 297
 298  # ... and show the editing form
 299
 300  my $content =  file_read($physical);
 301  my $md5sum  =  md5_hex($$content);
 302  $$content   =~ s/\015\012|\012|\015/\n/g;
 303
 304  my $tpl = new Template;
 305  $tpl->read_file($config->{'templates'}->{'editfile'});
 306
 307  $tpl->fillin('FILE',encode_html($virtual));
 308  $tpl->fillin('FILE_URL',escape($virtual));
 309  $tpl->fillin('DIR',encode_html($dir));
 310  $tpl->fillin('DIR_URL',escape($dir));
 311  $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 312  $tpl->fillin('SCRIPT',$script);
 313  $tpl->fillin('MD5SUM',$md5sum);
 314  $tpl->fillin('CONTENT',encode_html($$content));
 315
 316  $tpl->parse_if_block('error',0);
 317
 318  my $output = header(-type => 'text/html');
 319  $output   .= $tpl->get_template;
 320
 321  return \$output;
 322 }
 323
 324 # exec_endedit()
 325 #
 326 # Save a file, unlock it and return to directory view
 327 #
 328 # Params: 1. Reference to user input hash
 329 #         2. Reference to config hash
 330 #
 331 # Return: Output of the command (Scalar Reference)
 332
 333 sub exec_endedit($$)
 334 {
 335  my ($data,$config) = @_;
 336  my $physical       = $data->{'physical'};
 337  my $virtual        = $data->{'virtual'};
 338  my $dir            = upper_path($virtual);
 339  my $cgi            = $data->{'cgi'};
 340  my $content        = $cgi->param('filecontent');
 341  my $md5sum         = $cgi->param('md5sum');
 342  my $output;
 343
 344  if(defined $content && $md5sum)
 345  {
 346   # Normalize newlines
 347
 348   $content =~ s/\015\012|\012|\015/\n/g;
 349
 350   if($cgi->param('saveas') && $data->{'new_physical'} ne '' && $data->{'new_virtual'} ne '')
 351   {
 352    # Create the new filename
 353
 354    $physical = $data->{'new_physical'};
 355    $virtual  = $data->{'new_virtual'};
 356   }
 357
 358   return error($config->{'errors'}->{'link_edit'},$dir)      if(-l $physical);
 359   return error($config->{'errors'}->{'dir_edit'},$dir)       if(-d $physical);
 360   return error($config->{'errors'}->{'no_edit'},$dir)        if(-e $physical && !(-r $physical && -w $physical));
 361   return error($config->{'errors'}->{'text_to_binary'},$dir) if(-e $physical && not -T $physical);
 362
 363   # For technical reasons, we can't use file_save() for
 364   # saving the file...
 365
 366   local *FILE;
 367
 368   sysopen(FILE,$physical,O_RDWR | O_CREAT) or return error($config->{'errors'}->{'edit_failed'},$dir,{FILE => $virtual});
 369   file_lock(*FILE,LOCK_EX)                 or do { close(FILE); return error($config->{'errors'}->{'edit_failed'},$dir,{FILE => $virtual}) };
 370
 371   my $md5 = new Digest::MD5;
 372   $md5->addfile(*FILE);
 373
 374   my $md5file = $md5->hexdigest;
 375   my $md5data = md5_hex($content);
 376
 377   if($md5file ne $md5sum && $md5data ne $md5file && not $cgi->param('saveas'))
 378   {
 379    # The file changed meanwhile
 380
 381    my $tpl = new Template;
 382    $tpl->read_file($config->{'templates'}->{'editfile'});
 383
 384    $tpl->fillin('ERROR',$config->{'errors'}->{'edit_file_changed'});
 385
 386    $tpl->fillin('FILE',encode_html($virtual));
 387    $tpl->fillin('FILE_URL',escape($virtual));
 388    $tpl->fillin('DIR',encode_html($dir));
 389    $tpl->fillin('DIR_URL',escape($dir));
 390    $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 391    $tpl->fillin('SCRIPT',$script);
 392    $tpl->fillin('MD5SUM',$md5file);
 393    $tpl->fillin('CONTENT',encode_html($content));
 394
 395    $tpl->parse_if_block('error',1);
 396
 397    my $data = header(-type => 'text/html');
 398    $data   .= $tpl->get_template;
 399
 400    $output  = \$data;
 401   }
 402   else
 403   {
 404    if($md5data ne $md5file)
 405    {
 406     seek(FILE,0,0);
 407     truncate(FILE,0);
 408
 409     print FILE $content;
 410    }
 411
 412    $output = devedit_reload({command => 'show', file => $dir});
 413   }
 414
 415   close(FILE);
 416
 417   return $output;
 418  }
 419
 420  return devedit_reload({command => 'beginedit', file => $virtual});
 421 }
 422
 423 # exec_mkfile()
 424 #
 425 # Create a file and return to directory view
 426 #
 427 # Params: 1. Reference to user input hash
 428 #         2. Reference to config hash
 429 #
 430 # Return: Output of the command (Scalar Reference)
 431
 432 sub exec_mkfile($$)
 433 {
 434  my ($data,$config) = @_;
 435  my $new_physical   = $data->{'new_physical'};
 436  my $new_virtual    = $data->{'new_virtual'};
 437  my $dir            = upper_path($new_virtual);
 438  $new_virtual       = encode_html($new_virtual);
 439
 440  if($new_physical)
 441  {
 442   return error($config->{'errors'}->{'file_exists'},$dir,{FILE => $new_virtual}) if(-e $new_physical);
 443
 444   file_create($new_physical) or return error($config->{'errors'}->{'mkfile_failed'},$dir,{FILE => $new_virtual});
 445   return devedit_reload({command => 'show', file => $dir});
 446  }
 447  else
 448  {
 449   my $tpl = new Template;
 450   $tpl->read_file($config->{'templates'}->{'mkfile'});
 451
 452   $tpl->fillin('DIR','/');
 453   $tpl->fillin('SCRIPT',$script);
 454
 455   my $output = header(-type => 'text/html');
 456   $output   .= $tpl->get_template;
 457
 458   return \$output;
 459  }
 460 }
 461
 462 # exec_mkdir()
 463 #
 464 # Create a directory and return to directory view
 465 #
 466 # Params: 1. Reference to user input hash
 467 #         2. Reference to config hash
 468 #
 469 # Return: Output of the command (Scalar Reference)
 470
 471 sub exec_mkdir($$)
 472 {
 473  my ($data,$config) = @_;
 474  my $new_physical   = $data->{'new_physical'};
 475  my $new_virtual    = $data->{'new_virtual'};
 476  my $dir            = upper_path($new_virtual);
 477  $new_virtual       = encode_html($new_virtual);
 478
 479  if($new_physical)
 480  {
 481   return error($config->{'errors'}->{'file_exists'},$dir,{FILE => $new_virtual}) if(-e $new_physical);
 482
 483   mkdir($new_physical,0777) or return error($config->{'errors'}->{'mkdir_failed'},$dir,{DIR => $new_virtual});
 484   return devedit_reload({command => 'show', file => $dir});
 485  }
 486  else
 487  {
 488   my $tpl = new Template;
 489   $tpl->read_file($config->{'templates'}->{'mkdir'});
 490
 491   $tpl->fillin('DIR','/');
 492   $tpl->fillin('SCRIPT',$script);
 493
 494   my $output = header(-type => 'text/html');
 495   $output   .= $tpl->get_template;
 496
 497   return \$output;
 498  }
 499 }
 500
 501 # exec_upload()
 502 #
 503 # Process a file upload
 504 #
 505 # Params: 1. Reference to user input hash
 506 #         2. Reference to config hash
 507 #
 508 # Return: Output of the command (Scalar Reference)
 509
 510 sub exec_upload($$)
 511 {
 512  my ($data,$config) = @_;
 513  my $physical       = $data->{'physical'};
 514  my $virtual        = $data->{'virtual'};
 515  my $cgi            = $data->{'cgi'};
 516
 517  return error($config->{'errors'}->{'no_directory'},upper_path($virtual),{FILE => $virtual}) unless(-d $physical && not -l $physical);
 518  return error($config->{'errors'}->{'dir_no_create'},$virtual,{DIR => $virtual})             unless(-w $physical);
 519
 520  if(my $uploaded_file = $cgi->param('uploaded_file'))
 521  {
 522   # Process file upload
 523
 524   my $filename  = file_name($uploaded_file);
 525   my $file_phys = $physical.'/'.$filename;
 526   my $file_virt = encode_html($virtual.$filename);
 527
 528   if(-e $file_phys)
 529   {
 530    return error($config->{'errors'}->{'link_replace'},$virtual)                        if(-l $file_phys);
 531    return error($config->{'errors'}->{'dir_replace'},$virtual)                         if(-d $file_phys);
 532    return error($config->{'errors'}->{'exist_no_write'},$virtual,{FILE => $file_virt}) unless(-w $file_phys);
 533    return error($config->{'errors'}->{'file_exists'},$virtual,{FILE => $file_virt})    unless($cgi->param('overwrite'));
 534   }
 535
 536   my $ascii  = $cgi->param('ascii');
 537   my $handle = $cgi->upload('uploaded_file');
 538
 539   return error($config->{'errors'}->{'invalid_upload'},$virtual) unless($handle);
 540
 541   # Read transferred file and write it to disk
 542
 543   read($handle, my $data, -s $handle);
 544   $data =~ s/\015\012|\012|\015/\n/g if($ascii); # Replace line separators if transferring in ASCII mode
 545   file_save($file_phys,\$data,not $ascii) or return error($config->{'errors'}->{'mkfile_failed'},$virtual,{FILE => $file_virt});
 546
 547   return devedit_reload({command => 'show', file => $virtual});
 548  }
 549  else
 550  {
 551   my $tpl = new Template;
 552   $tpl->read_file($config->{'templates'}->{'upload'});
 553
 554   $tpl->fillin('DIR',encode_html($virtual));
 555   $tpl->fillin('DIR_URL',escape($virtual));
 556   $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 557   $tpl->fillin('SCRIPT',$script);
 558
 559   my $output = header(-type => 'text/html');
 560   $output   .= $tpl->get_template;
 561
 562   return \$output;
 563  }
 564 }
 565
 566 # exec_copy()
 567 #
 568 # Copy a file and return to directory view
 569 #
 570 # Params: 1. Reference to user input hash
 571 #         2. Reference to config hash
 572 #
 573 # Return: Output of the command (Scalar Reference)
 574
 575 sub exec_copy($$)
 576 {
 577  my ($data,$config) = @_;
 578  my $physical       = $data->{'physical'};
 579  my $virtual        = $data->{'virtual'};
 580  my $dir            = upper_path($virtual);
 581  my $new_physical   = $data->{'new_physical'};
 582
 583  return error($config->{'errors'}->{'link_copy'},$dir) if(-l $physical);
 584  return error($config->{'errors'}->{'dir_copy'},$dir)  if(-d $physical);
 585  return error($config->{'errors'}->{'no_copy'},$dir)   unless(-r $physical);
 586
 587  if($new_physical)
 588  {
 589   my $new_virtual = multi_string($data->{'new_virtual'});
 590   my $new_dir     = upper_path($new_virtual->{'normal'});
 591
 592   if(-e $new_physical)
 593   {
 594    return error($config->{'errors'}->{'link_replace'},$new_dir)                                    if(-l $new_physical);
 595    return error($config->{'errors'}->{'dir_replace'},$new_dir)                                     if(-d $new_physical);
 596    return error($config->{'errors'}->{'exist_no_write'},$new_dir,{FILE => $new_virtual->{'html'}}) unless(-w $new_physical);
 597
 598    if(not $data->{'cgi'}->param('confirmed'))
 599    {
 600     my $tpl = new Template;
 601     $tpl->read_file($config->{'templates'}->{'confirm_replace'});
 602
 603     $tpl->fillin('FILE',encode_html($virtual));
 604     $tpl->fillin('NEW_FILE',$new_virtual->{'html'});
 605     $tpl->fillin('NEW_FILENAME',file_name($new_virtual->{'html'}));
 606     $tpl->fillin('NEW_DIR',encode_html($new_dir));
 607     $tpl->fillin('DIR',encode_html($dir));
 608     $tpl->fillin('DIR_URL',escape($dir));
 609
 610     $tpl->fillin('COMMAND','copy');
 611     $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 612     $tpl->fillin('SCRIPT',$script);
 613
 614     my $output = header(-type => 'text/html');
 615     $output   .= $tpl->get_template;
 616
 617     return \$output;
 618    }
 619   }
 620
 621   copy($physical,$new_physical) or return error($config->{'errors'}->{'copy_failed'},$dir,{FILE => $virtual, NEW_FILE => $new_virtual});
 622   return devedit_reload({command => 'show', file => $new_dir});
 623  }
 624  else
 625  {
 626   my $tpl = new Template;
 627   $tpl->read_file($config->{'templates'}->{'copyfile'});
 628
 629   $tpl->fillin('FILE',encode_html($virtual));
 630   $tpl->fillin('DIR',encode_html($dir));
 631   $tpl->fillin('DIR_URL',escape($dir));
 632   $tpl->fillin('URL',equal_url($config->{'httproot'},encode_html($virtual)));
 633   $tpl->fillin('SCRIPT',$script);
 634
 635   my $output = header(-type => 'text/html');
 636   $output   .= $tpl->get_template;
 637
 638   return \$output;
 639  }
 640 }
 641
 642 # exec_rename()
 643 #
 644 # Rename/move a file and return to directory view
 645 #
 646 # Params: 1. Reference to user input hash
 647 #         2. Reference to config hash
 648 #
 649 # Return: Output of the command (Scalar Reference)
 650
 651 sub exec_rename($$)
 652 {
 653  my ($data,$config) = @_;
 654  my $physical       = $data->{'physical'};
 655  my $virtual        = $data->{'virtual'};
 656  my $dir            = upper_path($virtual);
 657  my $new_physical   = $data->{'new_physical'};
 658
 659  return error($config->{'errors'}->{'rename_root'},'/') if($virtual eq '/');
 660  return error($config->{'errors'}->{'no_rename'},$dir)  unless(-w upper_path($physical));
 661
 662  if($new_physical)
 663  {
 664   my $new_virtual = $data->{'new_virtual'};
 665   my $new_dir     = upper_path($new_virtual);
 666   $new_virtual    = encode_html($new_virtual);
 667
 668   if(-e $new_physical)
 669   {
 670    return error($config->{'errors'}->{'dir_replace'},$new_dir)                           if(-d $new_physical && not -l $new_physical);
 671    return error($config->{'errors'}->{'exist_no_write'},$new_dir,{FILE => $new_virtual}) unless(-w $new_physical);
 672
 673    if(not $data->{'cgi'}->param('confirmed'))
 674    {
 675     my $tpl = new Template;
 676     $tpl->read_file($config->{'templates'}->{'confirm_replace'});
 677
 678     $tpl->fillin('FILE',$virtual);
 679     $tpl->fillin('NEW_FILE',$new_virtual);
 680     $tpl->fillin('NEW_FILENAME',file_name($new_virtual));
 681     $tpl->fillin('NEW_DIR',$new_dir);
 682     $tpl->fillin('DIR',$dir);
 683
 684     $tpl->fillin('COMMAND','rename');
 685     $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 686     $tpl->fillin('SCRIPT',$script);
 687
 688     my $output = header(-type => 'text/html');
 689     $output   .= $tpl->get_template;
 690
 691     return \$output;
 692    }
 693   }
 694
 695   move($physical,$new_physical) or return error($config->{'errors'}->{'rename_failed'},$dir,{FILE => $virtual, NEW_FILE => $new_virtual});
 696   return devedit_reload({command => 'show', file => $new_dir});
 697  }
 698  else
 699  {
 700   my $tpl = new Template;
 701   $tpl->read_file($config->{'templates'}->{'renamefile'});
 702
 703   $tpl->fillin('FILE',$virtual);
 704   $tpl->fillin('DIR',encode_html($dir));
 705   $tpl->fillin('DIR_URL',escape($dir));
 706   $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 707   $tpl->fillin('SCRIPT',$script);
 708
 709   my $output = header(-type => 'text/html');
 710   $output   .= $tpl->get_template;
 711
 712   return \$output;
 713  }
 714 }
 715
 716 # exec_remove()
 717 #
 718 # Remove a file or a directory and return to directory view
 719 #
 720 # Params: 1. Reference to user input hash
 721 #         2. Reference to config hash
 722 #
 723 # Return: Output of the command (Scalar Reference)
 724
 725 sub exec_remove($$)
 726 {
 727  my ($data,$config) = @_;
 728  my $physical       = $data->{'physical'};
 729  my $virtual        = $data->{'virtual'};
 730  my $dir            = upper_path($virtual);
 731
 732  return error($config->{'errors'}->{'remove_root'},'/') if($virtual eq '/');
 733  return error($config->{'errors'}->{'no_delete'},$dir)  unless(-w upper_path($physical));
 734
 735  if(-d $physical && not -l $physical)
 736  {
 737   # Remove a directory
 738
 739   if($data->{'cgi'}->param('confirmed'))
 740   {
 741    rmtree($physical);
 742    return devedit_reload({command => 'show', file => $dir});
 743   }
 744   else
 745   {
 746    my $tpl = new Template;
 747    $tpl->read_file($config->{'templates'}->{'confirm_rmdir'});
 748
 749    $tpl->fillin('DIR',encode_html($virtual));
 750    $tpl->fillin('DIR_URL',escape($virtual));
 751    $tpl->fillin('UPPER_DIR',encode_html($dir));
 752    $tpl->fillin('UPPER_DIR_URL',escape($dir));
 753    $tpl->fillin('URL',equal_url($config->{'httproot'},encode_html($virtual)));
 754    $tpl->fillin('SCRIPT',$script);
 755
 756    my $output = header(-type => 'text/html');
 757    $output   .= $tpl->get_template;
 758
 759    return \$output;
 760   }
 761  }
 762  else
 763  {
 764   # Remove a file
 765
 766   if($data->{'cgi'}->param('confirmed'))
 767   {
 768    unlink($physical) or return error($config->{'errors'}->{'delete_failed'},$dir,{FILE => $virtual});
 769    return devedit_reload({command => 'show', file => $dir});
 770   }
 771   else
 772   {
 773    my $tpl = new Template;
 774    $tpl->read_file($config->{'templates'}->{'confirm_rmfile'});
 775
 776    $tpl->fillin('FILE',encode_html($virtual));
 777    $tpl->fillin('FILE_URL',escape($virtual));
 778    $tpl->fillin('DIR',encode_html($dir));
 779    $tpl->fillin('DIR_URL',escape($dir));
 780    $tpl->fillin('URL',equal_url($config->{'httproot'},encode_html($virtual)));
 781    $tpl->fillin('SCRIPT',$script);
 782
 783    my $output = header(-type => 'text/html');
 784    $output   .= $tpl->get_template;
 785
 786    return \$output;
 787   }
 788  }
 789 }
 790
 791 # exec_chprop()
 792 #
 793 # Change the mode and the group of a file or a directory
 794 #
 795 # Params: 1. Reference to user input hash
 796 #         2. Reference to config hash
 797 #
 798 # Return: Output of the command (Scalar Reference)
 799
 800 sub exec_chprop($$)
 801 {
 802  my ($data,$config) = @_;
 803  my $physical       = $data->{'physical'};
 804  my $virtual        = $data->{'virtual'};
 805  my $dir            = upper_path($virtual);
 806
 807  return error($config->{'errors'}->{'no_users'},$dir,{FILE => encode_html($virtual)})  unless($users);
 808  return error($config->{'errors'}->{'chprop_root'},'/')                   if($virtual eq '/');
 809  return error($config->{'errors'}->{'not_owner'},$dir,{FILE => encode_html($virtual)}) unless(-o $physical);
 810  return error($config->{'errors'}->{'chprop_link'},$dir)                  if(-l $physical);
 811
 812  my $cgi   = $data->{'cgi'};
 813  my $mode  = $cgi->param('mode');
 814  my $group = $cgi->param('group');
 815
 816  if($mode || $group)
 817  {
 818   if($mode)
 819   {
 820    # Change the mode
 821
 822    chmod(oct($mode),$physical);
 823   }
 824
 825   if($group)
 826   {
 827    # Change the group using the `chgrp` system command
 828
 829    return error($config->{'errors'}->{'invalid_group'},$dir,{GROUP => encode_html($group)}) unless($group =~ /^[a-z0-9_]+[a-z0-9_-]*$/i);
 830    system('chgrp',$group,$physical);
 831   }
 832
 833   return devedit_reload({command => 'show', file => $dir});
 834  }
 835  else
 836  {
 837   # Display the form
 838
 839   my @stat = stat($physical);
 840   my $mode = $stat[2];
 841   my $gid  = $stat[5];
 842
 843   my $tpl = new Template;
 844   $tpl->read_file($config->{'templates'}->{'chprop'});
 845
 846   # Insert file properties into the template
 847
 848   $tpl->fillin('MODE_OCTAL',substr(sprintf('%04o',$mode),-4));
 849   $tpl->fillin('MODE_STRING',mode_string($mode));
 850   $tpl->fillin('GID',$gid);
 851
 852   if(my $group = getgrgid($gid))
 853   {
 854    $tpl->fillin('GROUP',encode_html($group));
 855    $tpl->parse_if_block('group_detected',1);
 856   }
 857   else
 858   {
 859    $tpl->parse_if_block('group_detected',0);
 860   }
 861
 862   # Insert other information
 863
 864   $tpl->fillin('FILE',encode_html($virtual));
 865   $tpl->fillin('FILE_URL',escape($virtual));
 866   $tpl->fillin('DIR',encode_html($dir));
 867   $tpl->fillin('DIR_URL',escape($dir));
 868   $tpl->fillin('URL',equal_url($config->{'httproot'},encode_html($virtual)));
 869   $tpl->fillin('SCRIPT',$script);
 870
 871   my $output = header(-type => 'text/html');
 872   $output   .= $tpl->get_template;
 873
 874   return \$output;
 875  }
 876 }
 877
 878 # exec_about()
 879 #
 880 # Display some information about Dev-Editor
 881 #
 882 # Params: 1. Reference to user input hash
 883 #         2. Reference to config hash
 884 #
 885 # Return: Output of the command (Scalar Reference)
 886
 887 sub exec_about($$)
 888 {
 889  my ($data,$config) = @_;
 890
 891  my $tpl = new Template;
 892  $tpl->read_file($config->{'templates'}->{'about'});
 893
 894  $tpl->fillin('SCRIPT',$script);
 895
 896  # Dev-Editor's version number
 897
 898  $tpl->fillin('VERSION',$data->{'version'});
 899
 900  # Some path information
 901
 902  $tpl->fillin('SCRIPT_PHYS',encode_html($ENV{'SCRIPT_FILENAME'}));
 903  $tpl->fillin('CONFIG_PATH',encode_html($data->{'configfile'}));
 904  $tpl->fillin('FILE_ROOT',  encode_html($config->{'fileroot'}));
 905  $tpl->fillin('HTTP_ROOT',  encode_html($config->{'httproot'}));
 906
 907  # Perl
 908
 909  $tpl->fillin('PERL_PROG',encode_html($^X));
 910  $tpl->fillin('PERL_VER', sprintf('%vd',$^V));
 911
 912  # Information about the server
 913
 914  $tpl->fillin('HTTPD',encode_html($ENV{'SERVER_SOFTWARE'}));
 915  $tpl->fillin('OS',   encode_html($^O));
 916  $tpl->fillin('TIME', encode_html(strftime($config->{'timeformat'},($config->{'use_gmt'}) ? gmtime : localtime)));
 917
 918  $tpl->parse_if_block('gmt',$config->{'use_gmt'});
 919
 920  # Process information
 921
 922  $tpl->fillin('PID',$$);
 923
 924  # The following information is only available on systems supporting
 925  # users and groups
 926
 927  if($users)
 928  {
 929   # Dev-Editor is running on a system which allows users and groups
 930   # So we display the user and the group of our process
 931
 932   my $uid = POSIX::getuid;
 933   my $gid = POSIX::getgid;
 934
 935   $tpl->parse_if_block('users',1);
 936
 937   # ID's of user and group
 938
 939   $tpl->fillin('UID',$uid);
 940   $tpl->fillin('GID',$gid);
 941
 942   # Names of user and group
 943
 944   if(my $user = getpwuid($uid))
 945   {
 946    $tpl->fillin('USER',encode_html($user));
 947    $tpl->parse_if_block('user_detected',1);
 948   }
 949   else
 950   {
 951    $tpl->parse_if_block('user_detected',0);
 952   }
 953
 954   if(my $group = getgrgid($gid))
 955   {
 956    $tpl->fillin('GROUP',encode_html($group));
 957    $tpl->parse_if_block('group_detected',1);
 958   }
 959   else
 960   {
 961    $tpl->parse_if_block('group_detected',0);
 962   }
 963
 964   # Process umask
 965
 966   $tpl->fillin('UMASK',sprintf('%04o',umask));
 967  }
 968  else
 969  {
 970   $tpl->parse_if_block('users',0);
 971  }
 972
 973  my $output = header(-type => 'text/html');
 974  $output   .= $tpl->get_template;
 975
 976  return \$output;
 977 }
 978
 979 # it's true, baby ;-)
 980
 981 1;
 982
 983 #
 984 ### End ###