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: 2005-04-10
  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 HTML::Entities;
  29 use Output;
  30 use Template;
  31
  32 use Data::Dumper;
  33
  34 my $script = encode_entities($ENV{'SCRIPT_NAME'});
  35 my $users  = eval('getpwuid(0)') && eval('getgrgid(0)');
  36
  37 my %dispatch = ('show'       => \&exec_show,
  38                 'beginedit'  => \&exec_beginedit,
  39                 'endedit'    => \&exec_endedit,
  40                 'mkdir'      => \&exec_mkdir,
  41                 'mkfile'     => \&exec_mkfile,
  42                 'upload'     => \&exec_upload,
  43                 'copy'       => \&exec_copy,
  44                 'rename'     => \&exec_rename,
  45                 'remove'     => \&exec_remove,
  46                 'chprop'     => \&exec_chprop,
  47                 'about'      => \&exec_about
  48                );
  49
  50 ### Export ###
  51
  52 use base qw(Exporter);
  53
  54 @EXPORT = qw(exec_command);
  55
  56 # exec_command()
  57 #
  58 # Execute the specified command
  59 #
  60 # Params: 1. Command to execute
  61 #         2. Reference to user input hash
  62 #         3. Reference to config hash
  63 #
  64 # Return: Output of the command (Scalar Reference)
  65
  66 sub exec_command($$$)
  67 {
  68  my ($command,$data,$config) = @_;
  69
  70  foreach(keys(%dispatch))
  71  {
  72   if(lc($_) eq lc($command))
  73   {
  74    my $output = &{$dispatch{$_}}($data,$config);
  75    return $output;
  76   }
  77  }
  78
  79  return error($config->{'errors'}->{'command_unknown'},'/',{COMMAND => encode_entities($command)});
  80 }
  81
  82 # exec_show()
  83 #
  84 # View a directory or a file
  85 #
  86 # Params: 1. Reference to user input hash
  87 #         2. Reference to config hash
  88 #
  89 # Return: Output of the command (Scalar Reference)
  90
  91 sub exec_show($$)
  92 {
  93  my ($data,$config) = @_;
  94  my $physical       = $data->{'physical'};
  95  my $virtual        = $data->{'virtual'};
  96  my $upper_path     = encode_entities(upper_path($virtual));
  97
  98  my $tpl = new Template;
  99
 100  if(-d $physical && not -l $physical)
 101  {
 102   # Create directory listing
 103
 104   return error($config->{'errors'}->{'no_dir_access'},$upper_path) unless(-r $physical && -x $physical);
 105
 106   my $direntries = dir_read($physical);
 107   return error($config->{'dir_read_fail'},$upper_path,{DIR => encode_entities($virtual)}) unless($direntries);
 108
 109   my $files = $direntries->{'files'};
 110   my $dirs  = $direntries->{'dirs'};
 111
 112   my $dir_writeable = -w $physical;
 113
 114   my $dirlist = '';
 115
 116   my $filter1 = $data->{'cgi'}->param('filter') || '*';        # The real wildcard
 117   my $filter2 = ($filter1 && $filter1 ne '*') ? $filter1 : ''; # Wildcard for output
 118
 119   # Create the link to the upper directory
 120   # (only if the current directory is not the root directory)
 121
 122   unless($virtual eq '/')
 123   {
 124    my @stat  = stat($physical.'/..');
 125
 126    my $udtpl = new Template;
 127    $udtpl->read_file($config->{'templates'}->{'dirlist_up'});
 128
 129    $udtpl->fillin('UPPER_DIR',$upper_path);
 130    $udtpl->fillin('DATE',encode_entities(strftime($config->{'timeformat'},($config->{'use_gmt'}) ? gmtime($stat[9]) : localtime($stat[9]))));
 131
 132    $dirlist .= $udtpl->get_template;
 133   }
 134
 135   # Directories
 136
 137   foreach my $dir(@$dirs)
 138   {
 139    next unless(dos_wildcard_match($filter1,$dir));
 140
 141    my $phys_path = $physical.'/'.$dir;
 142    my $virt_path = encode_entities($virtual.$dir.'/');
 143
 144    my @stat      = stat($phys_path);
 145
 146    my $dtpl = new Template;
 147    $dtpl->read_file($config->{'templates'}->{'dirlist_dir'});
 148
 149    $dtpl->fillin('DIR',$virt_path);
 150    $dtpl->fillin('DIR_NAME',encode_entities($dir));
 151    $dtpl->fillin('DATE',encode_entities(strftime($config->{'timeformat'},($config->{'use_gmt'}) ? gmtime($stat[9]) : localtime($stat[9]))));
 152    $dtpl->fillin('URL',equal_url(encode_entities($config->{'httproot'}),$virt_path));
 153
 154    $dtpl->parse_if_block('readable',-r $phys_path && -x $phys_path);
 155    $dtpl->parse_if_block('users',$users && -o $phys_path);
 156
 157    $dirlist .= $dtpl->get_template;
 158   }
 159
 160   # Files
 161
 162   foreach my $file(@$files)
 163   {
 164    next unless(dos_wildcard_match($filter1,$file));
 165
 166    my $phys_path = $physical.'/'.$file;
 167    my $virt_path = encode_entities($virtual.$file);
 168
 169    my @stat      = lstat($phys_path);
 170    my $too_large = $config->{'max_file_size'} && $stat[7] > $config->{'max_file_size'};
 171
 172    my $ftpl = new Template;
 173    $ftpl->read_file($config->{'templates'}->{'dirlist_file'});
 174
 175    $ftpl->fillin('FILE',$virt_path);
 176    $ftpl->fillin('FILE_NAME',encode_entities($file));
 177    $ftpl->fillin('SIZE',$stat[7]);
 178    $ftpl->fillin('DATE',encode_entities(strftime($config->{'timeformat'},($config->{'use_gmt'}) ? gmtime($stat[9]) : localtime($stat[9]))));
 179    $ftpl->fillin('URL',equal_url(encode_entities($config->{'httproot'}),$virt_path));
 180
 181    $ftpl->parse_if_block('link',-l $phys_path);
 182    $ftpl->parse_if_block('no_link',not -l $phys_path);
 183    $ftpl->parse_if_block('not_readable',not -r $phys_path);
 184    $ftpl->parse_if_block('binary',-B $phys_path);
 185    $ftpl->parse_if_block('readonly',not -w $phys_path);
 186
 187    $ftpl->parse_if_block('viewable',(-r $phys_path && -T $phys_path && not $too_large) || -l $phys_path);
 188    $ftpl->parse_if_block('editable',(-r $phys_path && -w $phys_path && -T $phys_path && not $too_large) && not -l $phys_path);
 189
 190    $ftpl->parse_if_block('too_large',$config->{'max_file_size'} && $stat[7] > $config->{'max_file_size'});
 191
 192    $ftpl->parse_if_block('users',$users && -o $phys_path);
 193
 194    $dirlist .= $ftpl->get_template;
 195   }
 196
 197   $tpl->read_file($config->{'templates'}->{'dirlist'});
 198
 199   $tpl->fillin('DIRLIST',$dirlist);
 200   $tpl->fillin('DIR',encode_entities($virtual));
 201   $tpl->fillin('SCRIPT',$script);
 202   $tpl->fillin('URL',encode_entities(equal_url($config->{'httproot'},$virtual)));
 203
 204   $tpl->fillin('FILTER',encode_entities($filter2));
 205   $tpl->fillin('FILTER_URL',escape($filter2));
 206
 207   $tpl->parse_if_block('empty',$dirlist eq '');
 208   $tpl->parse_if_block('dir_writeable',$dir_writeable);
 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   $tpl->fillin('FILE',encode_entities($virtual));
 221   $tpl->fillin('DIR',$upper_path);
 222   $tpl->fillin('URL',encode_entities(equal_url($config->{'httproot'},$virtual)));
 223   $tpl->fillin('SCRIPT',$script);
 224
 225   $tpl->fillin('LINK_TARGET',encode_entities($link_target));
 226  }
 227  else
 228  {
 229   # View a file
 230
 231   return error($config->{'errors'}->{'no_view'},$upper_path) unless(-r $physical);
 232
 233   # Check on binary files
 234   # We have to do it in this way or empty files will be recognized
 235   # as binary files
 236
 237   return error($config->{'errors'}->{'binary_file'},$upper_path) unless(-T $physical);
 238
 239   # Is the file too large?
 240
 241   return error($config->{'errors'}->{'file_too_large'},$upper_path,{SIZE => $config->{'max_file_size'}}) if($config->{'max_file_size'} && -s $physical > $config->{'max_file_size'});
 242
 243   # View the file
 244
 245   my $content =  file_read($physical);
 246   $$content   =~ s/\015\012|\012|\015/\n/g;
 247
 248   $tpl->read_file($config->{'templates'}->{'viewfile'});
 249
 250   $tpl->fillin('FILE',encode_entities($virtual));
 251   $tpl->fillin('DIR',$upper_path);
 252   $tpl->fillin('URL',encode_entities(equal_url($config->{'httproot'},$virtual)));
 253   $tpl->fillin('SCRIPT',$script);
 254
 255   $tpl->parse_if_block('editable',-w $physical);
 256
 257   $tpl->fillin('CONTENT',encode_entities($$content));
 258  }
 259
 260  my $output  = header(-type => 'text/html');
 261  $output    .= $tpl->get_template;
 262
 263  return \$output;
 264 }
 265
 266 # exec_beginedit
 267 #
 268 # Lock a file and display a form to edit it
 269 #
 270 # Params: 1. Reference to user input hash
 271 #         2. Reference to config hash
 272 #
 273 # Return: Output of the command (Scalar Reference)
 274
 275 sub exec_beginedit($$)
 276 {
 277  my ($data,$config) = @_;
 278  my $physical       = $data->{'physical'};
 279  my $virtual        = $data->{'virtual'};
 280  my $dir            = upper_path($virtual);
 281  my $cgi            = $data->{'cgi'};
 282
 283  return error($config->{'errors'}->{'link_edit'},$dir) if(-l $physical);
 284  return error($config->{'errors'}->{'dir_edit'}, $dir) if(-d $physical);
 285  return error($config->{'errors'}->{'no_edit'},  $dir) unless(-r $physical && -w $physical);
 286
 287  # Check on binary files
 288
 289  return error($config->{'errors'}->{'binary_file'},$dir) unless(-T $physical);
 290
 291  # Is the file too large?
 292
 293  return error($config->{'errors'}->{'file_too_large'},$dir,{SIZE => $config->{'max_file_size'}}) if($config->{'max_file_size'} && -s $physical > $config->{'max_file_size'});
 294
 295  # ... and show the editing form
 296
 297  my $content =  file_read($physical,1);
 298  my $md5sum  =  md5_hex($$content);
 299  $$content   =~ s/\015\012|\012|\015/\n/g;
 300
 301  my $tpl = new Template;
 302  $tpl->read_file($config->{'templates'}->{'editfile'});
 303
 304  $tpl->fillin('FILE',$virtual);
 305  $tpl->fillin('DIR',$dir);
 306  $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 307  $tpl->fillin('SCRIPT',$script);
 308  $tpl->fillin('MD5SUM',$md5sum);
 309  $tpl->fillin('CONTENT',encode_entities($$content));
 310
 311  $tpl->parse_if_block('error',0);
 312
 313  my $output = header(-type => 'text/html');
 314  $output   .= $tpl->get_template;
 315
 316  return \$output;
 317 }
 318
 319 # exec_endedit()
 320 #
 321 # Save a file, unlock it and return to directory view
 322 #
 323 # Params: 1. Reference to user input hash
 324 #         2. Reference to config hash
 325 #
 326 # Return: Output of the command (Scalar Reference)
 327
 328 sub exec_endedit($$)
 329 {
 330  my ($data,$config) = @_;
 331  my $physical       = $data->{'physical'};
 332  my $virtual        = $data->{'virtual'};
 333  my $dir            = upper_path($virtual);
 334  my $cgi            = $data->{'cgi'};
 335  my $content        = $cgi->param('filecontent');
 336  my $md5sum         = $cgi->param('md5sum');
 337  my $output;
 338
 339  if(defined $content && $md5sum)
 340  {
 341   # Normalize newlines
 342
 343   $content =~ s/\015\012|\012|\015/\n/g;
 344
 345   if($cgi->param('saveas') && $data->{'new_physical'} ne '' && $data->{'new_virtual'} ne '')
 346   {
 347    # Create the new filename
 348
 349    $physical = $data->{'new_physical'};
 350    $virtual  = $data->{'new_virtual'};
 351   }
 352
 353   return error($config->{'errors'}->{'link_edit'},$dir)      if(-l $physical);
 354   return error($config->{'errors'}->{'dir_edit'},$dir)       if(-d $physical);
 355   return error($config->{'errors'}->{'no_edit'},$dir)        if(-e $physical && !(-r $physical && -w $physical));
 356   return error($config->{'errors'}->{'text_to_binary'},$dir) if(-e $physical && not -T $physical);
 357
 358   # For technical reasons, we can't use file_save() for
 359   # saving the file...
 360
 361   local *FILE;
 362
 363   sysopen(FILE,$physical,O_RDWR | O_CREAT) or return error($config->{'errors'}->{'edit_failed'},$dir,{FILE => $virtual});
 364   file_lock(*FILE,LOCK_EX)                 or do { close(FILE); return error($config->{'errors'}->{'edit_failed'},$dir,{FILE => $virtual}) };
 365   binmode(FILE);
 366
 367   my $md5 = new Digest::MD5;
 368   $md5->addfile(*FILE);
 369
 370   my $md5_new = $md5->hexdigest;
 371
 372   if($md5_new ne $md5sum && not $cgi->param('saveas'))
 373   {
 374    # The file changed meanwhile
 375
 376    my $tpl = new Template;
 377    $tpl->read_file($config->{'templates'}->{'editfile'});
 378
 379    $tpl->fillin('ERROR',$config->{'errors'}->{'edit_file_changed'});
 380
 381    $tpl->fillin('FILE',$virtual);
 382    $tpl->fillin('DIR',$dir);
 383    $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 384    $tpl->fillin('SCRIPT',$script);
 385    $tpl->fillin('MD5SUM',$md5_new);
 386    $tpl->fillin('CONTENT',encode_entities($content));
 387
 388    $tpl->parse_if_block('error',1);
 389
 390    my $data = header(-type => 'text/html');
 391    $data   .= $tpl->get_template;
 392
 393    $output  = \$data;
 394   }
 395   else
 396   {
 397    # The file was saved successfully!
 398
 399    seek(FILE,0,0);
 400    truncate(FILE,0);
 401
 402    print FILE $content;
 403
 404    $output = devedit_reload({command => 'show', file => $dir});
 405
 406    #return error($config->{'errors'}->{'edit_failed'},$dir,{FILE => $virtual});
 407   }
 408
 409   close(FILE);
 410
 411   return $output;
 412  }
 413
 414  return devedit_reload({command => 'beginedit', file => $virtual});
 415 }
 416
 417 # exec_mkfile()
 418 #
 419 # Create a file and return to directory view
 420 #
 421 # Params: 1. Reference to user input hash
 422 #         2. Reference to config hash
 423 #
 424 # Return: Output of the command (Scalar Reference)
 425
 426 sub exec_mkfile($$)
 427 {
 428  my ($data,$config) = @_;
 429  my $new_physical   = $data->{'new_physical'};
 430  my $new_virtual    = $data->{'new_virtual'};
 431  my $dir            = upper_path($new_virtual);
 432  $new_virtual       = encode_entities($new_virtual);
 433
 434  if($new_physical)
 435  {
 436   return error($config->{'errors'}->{'file_exists'},$dir,{FILE => $new_virtual}) if(-e $new_physical);
 437
 438   file_create($new_physical) or return error($config->{'errors'}->{'mkfile_failed'},$dir,{FILE => $new_virtual});
 439   return devedit_reload({command => 'show', file => $dir});
 440  }
 441  else
 442  {
 443   my $tpl = new Template;
 444   $tpl->read_file($config->{'templates'}->{'mkfile'});
 445
 446   $tpl->fillin('DIR','/');
 447   $tpl->fillin('SCRIPT',$script);
 448
 449   my $output = header(-type => 'text/html');
 450   $output   .= $tpl->get_template;
 451
 452   return \$output;
 453  }
 454 }
 455
 456 # exec_mkdir()
 457 #
 458 # Create a directory and return to directory view
 459 #
 460 # Params: 1. Reference to user input hash
 461 #         2. Reference to config hash
 462 #
 463 # Return: Output of the command (Scalar Reference)
 464
 465 sub exec_mkdir($$)
 466 {
 467  my ($data,$config) = @_;
 468  my $new_physical   = $data->{'new_physical'};
 469  my $new_virtual    = $data->{'new_virtual'};
 470  my $dir            = upper_path($new_virtual);
 471  $new_virtual       = encode_entities($new_virtual);
 472
 473  if($new_physical)
 474  {
 475   return error($config->{'errors'}->{'file_exists'},$dir,{FILE => $new_virtual}) if(-e $new_physical);
 476
 477   mkdir($new_physical,0777) or return error($config->{'errors'}->{'mkdir_failed'},$dir,{DIR => $new_virtual});
 478   return devedit_reload({command => 'show', file => $dir});
 479  }
 480  else
 481  {
 482   my $tpl = new Template;
 483   $tpl->read_file($config->{'templates'}->{'mkdir'});
 484
 485   $tpl->fillin('DIR','/');
 486   $tpl->fillin('SCRIPT',$script);
 487
 488   my $output = header(-type => 'text/html');
 489   $output   .= $tpl->get_template;
 490
 491   return \$output;
 492  }
 493 }
 494
 495 # exec_upload()
 496 #
 497 # Process a file upload
 498 #
 499 # Params: 1. Reference to user input hash
 500 #         2. Reference to config hash
 501 #
 502 # Return: Output of the command (Scalar Reference)
 503
 504 sub exec_upload($$)
 505 {
 506  my ($data,$config) = @_;
 507  my $physical       = $data->{'physical'};
 508  my $virtual        = $data->{'virtual'};
 509  my $cgi            = $data->{'cgi'};
 510
 511  return error($config->{'errors'}->{'no_directory'},upper_path($virtual),{FILE => $virtual}) unless(-d $physical && not -l $physical);
 512  return error($config->{'errors'}->{'dir_no_create'},$virtual,{DIR => $virtual})             unless(-w $physical);
 513
 514  if(my $uploaded_file = $cgi->param('uploaded_file'))
 515  {
 516   # Process file upload
 517
 518   my $filename  = file_name($uploaded_file);
 519   my $file_phys = $physical.'/'.$filename;
 520   my $file_virt = $virtual.$filename;
 521
 522   if(-e $file_phys)
 523   {
 524    return error($config->{'errors'}->{'link_replace'},$virtual)                        if(-l $file_phys);
 525    return error($config->{'errors'}->{'dir_replace'},$virtual)                         if(-d $file_phys);
 526    return error($config->{'errors'}->{'exist_no_write'},$virtual,{FILE => $file_virt}) unless(-w $file_phys);
 527    return error($config->{'errors'}->{'file_exists'},$virtual,{FILE => $file_virt})    unless($cgi->param('overwrite'));
 528   }
 529
 530   my $ascii     = $cgi->param('ascii');
 531   my $handle    = $cgi->upload('uploaded_file');
 532
 533   return error($config->{'errors'}->{'invalid_upload'},$virtual) unless($handle);
 534
 535   # Read transferred file and write it to disk
 536
 537   read($handle, my $data, -s $handle);
 538   $data =~ s/\015\012|\012|\015/\n/g if($ascii); # Replace line separators if transferring in ASCII mode
 539   file_save($file_phys,\$data,not $ascii) or return error($config->{'errors'}->{'mkfile_failed'},$virtual,{FILE => $file_virt});
 540
 541   return devedit_reload({command => 'show', file => $virtual});
 542  }
 543  else
 544  {
 545   my $tpl = new Template;
 546   $tpl->read_file($config->{'templates'}->{'upload'});
 547
 548   $tpl->fillin('DIR',$virtual);
 549   $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 550   $tpl->fillin('SCRIPT',$script);
 551
 552   my $output = header(-type => 'text/html');
 553   $output   .= $tpl->get_template;
 554
 555   return \$output;
 556  }
 557 }
 558
 559 # exec_copy()
 560 #
 561 # Copy a file and return to directory view
 562 #
 563 # Params: 1. Reference to user input hash
 564 #         2. Reference to config hash
 565 #
 566 # Return: Output of the command (Scalar Reference)
 567
 568 sub exec_copy($$)
 569 {
 570  my ($data,$config) = @_;
 571  my $physical       = $data->{'physical'};
 572  my $virtual        = encode_entities($data->{'virtual'});
 573  my $dir            = upper_path($virtual);
 574  my $new_physical   = $data->{'new_physical'};
 575
 576  return error($config->{'errors'}->{'link_copy'},$dir) if(-l $physical);
 577  return error($config->{'errors'}->{'dir_copy'},$dir)  if(-d $physical);
 578  return error($config->{'errors'}->{'no_copy'},$dir)   unless(-r $physical);
 579
 580  if($new_physical)
 581  {
 582   my $new_virtual = $data->{'new_virtual'};
 583   my $new_dir     = upper_path($new_virtual);
 584   $new_virtual    = encode_entities($new_virtual);
 585
 586   if(-e $new_physical)
 587   {
 588    return error($config->{'errors'}->{'link_replace'},$new_dir)                          if(-l $new_physical);
 589    return error($config->{'errors'}->{'dir_replace'},$new_dir)                           if(-d $new_physical);
 590    return error($config->{'errors'}->{'exist_no_write'},$new_dir,{FILE => $new_virtual}) unless(-w $new_physical);
 591
 592    if(not $data->{'cgi'}->param('confirmed'))
 593    {
 594     my $tpl = new Template;
 595     $tpl->read_file($config->{'templates'}->{'confirm_replace'});
 596
 597     $tpl->fillin('FILE',$virtual);
 598     $tpl->fillin('NEW_FILE',$new_virtual);
 599     $tpl->fillin('NEW_FILENAME',file_name($new_virtual));
 600     $tpl->fillin('NEW_DIR',$new_dir);
 601     $tpl->fillin('DIR',$dir);
 602
 603     $tpl->fillin('COMMAND','copy');
 604     $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 605     $tpl->fillin('SCRIPT',$script);
 606
 607     my $output = header(-type => 'text/html');
 608     $output   .= $tpl->get_template;
 609
 610     return \$output;
 611    }
 612   }
 613
 614   copy($physical,$new_physical) or return error($config->{'errors'}->{'copy_failed'},$dir,{FILE => $virtual, NEW_FILE => $new_virtual});
 615   return devedit_reload({command => 'show', file => $new_dir});
 616  }
 617  else
 618  {
 619   my $tpl = new Template;
 620   $tpl->read_file($config->{'templates'}->{'copyfile'});
 621
 622   $tpl->fillin('FILE',$virtual);
 623   $tpl->fillin('DIR',$dir);
 624   $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 625   $tpl->fillin('SCRIPT',$script);
 626
 627   my $output = header(-type => 'text/html');
 628   $output   .= $tpl->get_template;
 629
 630   return \$output;
 631  }
 632 }
 633
 634 # exec_rename()
 635 #
 636 # Rename/move a file and return to directory view
 637 #
 638 # Params: 1. Reference to user input hash
 639 #         2. Reference to config hash
 640 #
 641 # Return: Output of the command (Scalar Reference)
 642
 643 sub exec_rename($$)
 644 {
 645  my ($data,$config) = @_;
 646  my $physical       = $data->{'physical'};
 647  my $virtual        = $data->{'virtual'};
 648  my $dir            = upper_path($virtual);
 649  my $new_physical   = $data->{'new_physical'};
 650
 651  return error($config->{'errors'}->{'rename_root'},'/')                if($virtual eq '/');
 652  return error($config->{'errors'}->{'no_rename'},$dir)                 unless(-w upper_path($physical));
 653
 654  if($new_physical)
 655  {
 656   my $new_virtual = $data->{'new_virtual'};
 657   my $new_dir     = upper_path($new_virtual);
 658   $new_virtual    = encode_entities($new_virtual);
 659
 660   if(-e $new_physical)
 661   {
 662    return error($config->{'errors'}->{'dir_replace'},$new_dir)                           if(-d $new_physical && not -l $new_physical);
 663    return error($config->{'errors'}->{'exist_no_write'},$new_dir,{FILE => $new_virtual}) unless(-w $new_physical);
 664
 665    if(not $data->{'cgi'}->param('confirmed'))
 666    {
 667     my $tpl = new Template;
 668     $tpl->read_file($config->{'templates'}->{'confirm_replace'});
 669
 670     $tpl->fillin('FILE',$virtual);
 671     $tpl->fillin('NEW_FILE',$new_virtual);
 672     $tpl->fillin('NEW_FILENAME',file_name($new_virtual));
 673     $tpl->fillin('NEW_DIR',$new_dir);
 674     $tpl->fillin('DIR',$dir);
 675
 676     $tpl->fillin('COMMAND','rename');
 677     $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 678     $tpl->fillin('SCRIPT',$script);
 679
 680     my $output = header(-type => 'text/html');
 681     $output   .= $tpl->get_template;
 682
 683     return \$output;
 684    }
 685   }
 686
 687   move($physical,$new_physical) or return error($config->{'errors'}->{'rename_failed'},$dir,{FILE => $virtual, NEW_FILE => $new_virtual});
 688   return devedit_reload({command => 'show', file => $new_dir});
 689  }
 690  else
 691  {
 692   my $tpl = new Template;
 693   $tpl->read_file($config->{'templates'}->{'renamefile'});
 694
 695   $tpl->fillin('FILE',$virtual);
 696   $tpl->fillin('DIR',$dir);
 697   $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 698   $tpl->fillin('SCRIPT',$script);
 699
 700   my $output = header(-type => 'text/html');
 701   $output   .= $tpl->get_template;
 702
 703   return \$output;
 704  }
 705 }
 706
 707 # exec_remove()
 708 #
 709 # Remove a file or a directory and return to directory view
 710 #
 711 # Params: 1. Reference to user input hash
 712 #         2. Reference to config hash
 713 #
 714 # Return: Output of the command (Scalar Reference)
 715
 716 sub exec_remove($$)
 717 {
 718  my ($data,$config) = @_;
 719  my $physical       = $data->{'physical'};
 720  my $virtual        = $data->{'virtual'};
 721  my $dir            = upper_path($virtual);
 722
 723  return error($config->{'errors'}->{'remove_root'},'/') if($virtual eq '/');
 724  return error($config->{'errors'}->{'no_delete'},$dir)  unless(-w upper_path($physical));
 725
 726  if(-d $physical && not -l $physical)
 727  {
 728   # Remove a directory
 729
 730   if($data->{'cgi'}->param('confirmed'))
 731   {
 732    rmtree($physical);
 733    return devedit_reload({command => 'show', file => $dir});
 734   }
 735   else
 736   {
 737    my $tpl = new Template;
 738    $tpl->read_file($config->{'templates'}->{'confirm_rmdir'});
 739
 740    $tpl->fillin('DIR',$virtual);
 741    $tpl->fillin('UPPER_DIR',$dir);
 742    $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 743    $tpl->fillin('SCRIPT',$script);
 744
 745    my $output = header(-type => 'text/html');
 746    $output   .= $tpl->get_template;
 747
 748    return \$output;
 749   }
 750  }
 751  else
 752  {
 753   # Remove a file
 754
 755   if($data->{'cgi'}->param('confirmed'))
 756   {
 757    unlink($physical) or return error($config->{'errors'}->{'delete_failed'},$dir,{FILE => $virtual});
 758    return devedit_reload({command => 'show', file => $dir});
 759   }
 760   else
 761   {
 762    my $tpl = new Template;
 763    $tpl->read_file($config->{'templates'}->{'confirm_rmfile'});
 764
 765    $tpl->fillin('FILE',$virtual);
 766    $tpl->fillin('DIR',$dir);
 767    $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 768    $tpl->fillin('SCRIPT',$script);
 769
 770    my $output = header(-type => 'text/html');
 771    $output   .= $tpl->get_template;
 772
 773    return \$output;
 774   }
 775  }
 776 }
 777
 778 # exec_chprop()
 779 #
 780 # Change the mode and the group of a file or a directory
 781 #
 782 # Params: 1. Reference to user input hash
 783 #         2. Reference to config hash
 784 #
 785 # Return: Output of the command (Scalar Reference)
 786
 787 sub exec_chprop($$)
 788 {
 789  my ($data,$config) = @_;
 790  my $physical       = $data->{'physical'};
 791  my $virtual        = $data->{'virtual'};
 792  my $dir            = upper_path($virtual);
 793
 794  return error($config->{'errors'}->{'no_users'},$dir,{FILE => $virtual})  unless($users);
 795  return error($config->{'errors'}->{'chprop_root'},'/')                   if($virtual eq '/');
 796  return error($config->{'errors'}->{'not_owner'},$dir,{FILE => $virtual}) unless(-o $physical);
 797  return error($config->{'errors'}->{'chprop_link'},$dir)                  if(-l $physical);
 798
 799  my $cgi   = $data->{'cgi'};
 800  my $mode  = $cgi->param('mode');
 801  my $group = $cgi->param('group');
 802
 803  if($mode || $group)
 804  {
 805   if($mode)
 806   {
 807    # Change the mode
 808
 809    chmod(oct($mode),$physical);
 810   }
 811
 812   if($group)
 813   {
 814    # Change the group using the `chgrp` system command
 815
 816    return error($config->{'errors'}->{'invalid_group'},$dir,{GROUP => encode_entities($group)}) unless($group =~ /^[a-z0-9_]+[a-z0-9_-]*$/i);
 817    system('chgrp',$group,$physical);
 818   }
 819
 820   return devedit_reload({command => 'show', file => $dir});
 821  }
 822  else
 823  {
 824   # Display the form
 825
 826   my @stat = stat($physical);
 827   my $mode = $stat[2];
 828   my $gid  = $stat[5];
 829
 830   my $tpl = new Template;
 831   $tpl->read_file($config->{'templates'}->{'chprop'});
 832
 833   # Insert file properties into the template
 834
 835   $tpl->fillin('MODE_OCTAL',substr(sprintf('%04o',$mode),-4));
 836   $tpl->fillin('MODE_STRING',mode_string($mode));
 837   $tpl->fillin('GID',$gid);
 838
 839   if(my $group = getgrgid($gid))
 840   {
 841    $tpl->fillin('GROUP',encode_entities($group));
 842    $tpl->parse_if_block('group_detected',1);
 843   }
 844   else
 845   {
 846    $tpl->parse_if_block('group_detected',0);
 847   }
 848
 849   # Insert other information
 850
 851   $tpl->fillin('FILE',$virtual);
 852   $tpl->fillin('DIR',$dir);
 853   $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 854   $tpl->fillin('SCRIPT',$script);
 855
 856   my $output = header(-type => 'text/html');
 857   $output   .= $tpl->get_template;
 858
 859   return \$output;
 860  }
 861 }
 862
 863 # exec_about()
 864 #
 865 # Display some information about Dev-Editor
 866 #
 867 # Params: 1. Reference to user input hash
 868 #         2. Reference to config hash
 869 #
 870 # Return: Output of the command (Scalar Reference)
 871
 872 sub exec_about($$)
 873 {
 874  my ($data,$config) = @_;
 875
 876  my $tpl = new Template;
 877  $tpl->read_file($config->{'templates'}->{'about'});
 878
 879  $tpl->fillin('SCRIPT',$script);
 880
 881  # Dev-Editor's version number
 882
 883  $tpl->fillin('VERSION',$data->{'version'});
 884
 885  # Some path information
 886
 887  $tpl->fillin('SCRIPT_PHYS',encode_entities($ENV{'SCRIPT_FILENAME'}));
 888  $tpl->fillin('CONFIG_PATH',encode_entities($data->{'configfile'}));
 889  $tpl->fillin('FILE_ROOT',  encode_entities($config->{'fileroot'}));
 890  $tpl->fillin('HTTP_ROOT',  encode_entities($config->{'httproot'}));
 891
 892  # Perl
 893
 894  $tpl->fillin('PERL_PROG',encode_entities($^X));
 895  $tpl->fillin('PERL_VER', sprintf('%vd',$^V));
 896
 897  # Information about the server
 898
 899  $tpl->fillin('HTTPD',encode_entities($ENV{'SERVER_SOFTWARE'}));
 900  $tpl->fillin('OS',   encode_entities($^O));
 901  $tpl->fillin('TIME', encode_entities(strftime($config->{'timeformat'},($config->{'use_gmt'}) ? gmtime : localtime)));
 902
 903  $tpl->parse_if_block('gmt',$config->{'use_gmt'});
 904
 905  # Process information
 906
 907  $tpl->fillin('PID',$$);
 908
 909  # The following information is only available on systems supporting
 910  # users and groups
 911
 912  if($users)
 913  {
 914   # Dev-Editor is running on a system which allows users and groups
 915   # So we display the user and the group of our process
 916
 917   my $uid = POSIX::getuid;
 918   my $gid = POSIX::getgid;
 919
 920   $tpl->parse_if_block('users',1);
 921
 922   # ID's of user and group
 923
 924   $tpl->fillin('UID',$uid);
 925   $tpl->fillin('GID',$gid);
 926
 927   # Names of user and group
 928
 929   if(my $user = getpwuid($uid))
 930   {
 931    $tpl->fillin('USER',encode_entities($user));
 932    $tpl->parse_if_block('user_detected',1);
 933   }
 934   else
 935   {
 936    $tpl->parse_if_block('user_detected',0);
 937   }
 938
 939   if(my $group = getgrgid($gid))
 940   {
 941    $tpl->fillin('GROUP',encode_entities($group));
 942    $tpl->parse_if_block('group_detected',1);
 943   }
 944   else
 945   {
 946    $tpl->parse_if_block('group_detected',0);
 947   }
 948
 949   # Process umask
 950
 951   $tpl->fillin('UMASK',sprintf('%04o',umask));
 952  }
 953  else
 954  {
 955   $tpl->parse_if_block('users',0);
 956  }
 957
 958  my $output = header(-type => 'text/html');
 959  $output   .= $tpl->get_template;
 960
 961  return \$output;
 962 }
 963
 964 # it's true, baby ;-)
 965
 966 1;
 967
 968 #
 969 ### End ###