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: 2005-03-18
  10 #
  11
  12 use strict;
  13
  14 use vars qw(@EXPORT);
  15
  16 use File::Access;
  17 use File::Copy;
  18 use File::Path;
  19
  20 use POSIX qw(strftime);
  21 use Tool;
  22
  23 use CGI qw(header
  24            escape);
  25
  26 use HTML::Entities;
  27 use Output;
  28 use Template;
  29
  30 my $script = encode_entities($ENV{'SCRIPT_NAME'});
  31 my $users  = eval('getpwuid(0)') && eval('getgrgid(0)');
  32
  33 my %dispatch = ('show'       => \&exec_show,
  34                 'beginedit'  => \&exec_beginedit,
  35                 'canceledit' => \&exec_canceledit,
  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                 'unlock'     => \&exec_unlock,
  45                 'about'      => \&exec_about
  46                );
  47
  48 ### Export ###
  49
  50 use base qw(Exporter);
  51
  52 @EXPORT = qw(exec_command);
  53
  54 # exec_command()
  55 #
  56 # Execute the specified command
  57 #
  58 # Params: 1. Command to execute
  59 #         2. Reference to user input hash
  60 #         3. Reference to config hash
  61 #
  62 # Return: Output of the command (Scalar Reference)
  63
  64 sub exec_command($$$)
  65 {
  66  my ($command,$data,$config) = @_;
  67
  68  foreach(keys(%dispatch))
  69  {
  70   if(lc($_) eq lc($command))
  71   {
  72    my $output = &{$dispatch{$_}}($data,$config);
  73    return $output;
  74   }
  75  }
  76
  77  return error($config->{'errors'}->{'cmd_unknown'},'/',{COMMAND => encode_entities($command)});
  78 }
  79
  80 # exec_show()
  81 #
  82 # View a directory or a file
  83 #
  84 # Params: 1. Reference to user input hash
  85 #         2. Reference to config hash
  86 #
  87 # Return: Output of the command (Scalar Reference)
  88
  89 sub exec_show($$)
  90 {
  91  my ($data,$config) = @_;
  92  my $physical       = $data->{'physical'};
  93  my $virtual        = $data->{'virtual'};
  94  my $upper_path     = encode_entities(upper_path($virtual));
  95  my $uselist        = $data->{'uselist'};
  96
  97  my $tpl = new Template;
  98
  99  if(-d $physical && not -l $physical)
 100  {
 101   # Create directory listing
 102
 103   return error($config->{'errors'}->{'no_dir_access'},$upper_path) unless(-r $physical && -x $physical);
 104
 105   my $direntries = dir_read($physical);
 106   return error($config->{'dir_read_fail'},$upper_path,{DIR => encode_entities($virtual)}) unless($direntries);
 107
 108   my $files = $direntries->{'files'};
 109   my $dirs  = $direntries->{'dirs'};
 110
 111   my $dir_writeable = -w $physical;
 112
 113   my $dirlist = '';
 114
 115   my $filter1 = $data->{'cgi'}->param('filter') || '*';        # The real wildcard
 116   my $filter2 = ($filter1 && $filter1 ne '*') ? $filter1 : ''; # Wildcard for output
 117
 118   # Create the link to the upper directory
 119   # (only if the current directory is not the root directory)
 120
 121   unless($virtual eq '/')
 122   {
 123    my @stat  = stat($physical.'/..');
 124
 125    my $udtpl = new Template;
 126    $udtpl->read_file($config->{'templates'}->{'dirlist_up'});
 127
 128    $udtpl->fillin('UPPER_DIR',$upper_path);
 129    $udtpl->fillin('DATE',encode_entities(strftime($config->{'timeformat'},($config->{'use_gmt'}) ? gmtime($stat[9]) : localtime($stat[9]))));
 130
 131    $dirlist .= $udtpl->get_template;
 132   }
 133
 134   # Directories
 135
 136   foreach my $dir(@$dirs)
 137   {
 138    next unless(dos_wildcard_match($filter1,$dir));
 139
 140    my $phys_path = $physical.'/'.$dir;
 141    my $virt_path = encode_entities($virtual.$dir.'/');
 142
 143    my @stat      = stat($phys_path);
 144
 145    my $dtpl = new Template;
 146    $dtpl->read_file($config->{'templates'}->{'dirlist_dir'});
 147
 148    $dtpl->fillin('DIR',$virt_path);
 149    $dtpl->fillin('DIR_NAME',encode_entities($dir));
 150    $dtpl->fillin('DATE',encode_entities(strftime($config->{'timeformat'},($config->{'use_gmt'}) ? gmtime($stat[9]) : localtime($stat[9]))));
 151    $dtpl->fillin('URL',equal_url(encode_entities($config->{'httproot'}),$virt_path));
 152
 153    $dtpl->parse_if_block('readable',-r $phys_path && -x $phys_path);
 154    $dtpl->parse_if_block('users',$users && -o $phys_path);
 155
 156    $dirlist .= $dtpl->get_template;
 157   }
 158
 159   # Files
 160
 161   foreach my $file(@$files)
 162   {
 163    next unless(dos_wildcard_match($filter1,$file));
 164
 165    my $phys_path = $physical.'/'.$file;
 166    my $virt_path = encode_entities($virtual.$file);
 167
 168    my @stat      = lstat($phys_path);
 169    my $in_use    = $uselist->in_use($virtual.$file);
 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 $in_use) && not -l $phys_path);
 189
 190    $ftpl->parse_if_block('in_use',$in_use);
 191    $ftpl->parse_if_block('unused',not $in_use);
 192
 193    $ftpl->parse_if_block('too_large',$config->{'max_file_size'} && $stat[7] > $config->{'max_file_size'});
 194
 195    $ftpl->parse_if_block('users',$users && -o $phys_path);
 196
 197    $dirlist .= $ftpl->get_template;
 198   }
 199
 200   $tpl->read_file($config->{'templates'}->{'dirlist'});
 201
 202   $tpl->fillin('DIRLIST',$dirlist);
 203   $tpl->fillin('DIR',encode_entities($virtual));
 204   $tpl->fillin('SCRIPT',$script);
 205   $tpl->fillin('URL',encode_entities(equal_url($config->{'httproot'},$virtual)));
 206
 207   $tpl->fillin('FILTER',encode_entities($filter2));
 208   $tpl->fillin('FILTER_URL',escape($filter2));
 209
 210   $tpl->parse_if_block('empty',$dirlist eq '');
 211   $tpl->parse_if_block('dir_writeable',$dir_writeable);
 212   $tpl->parse_if_block('filter',$filter2);
 213   $tpl->parse_if_block('gmt',$config->{'use_gmt'});
 214  }
 215  elsif(-l $physical)
 216  {
 217   # Show the target of a symbolic link
 218
 219   my $link_target = readlink($physical);
 220
 221   $tpl->read_file($config->{'templates'}->{'viewlink'});
 222
 223   $tpl->fillin('FILE',encode_entities($virtual));
 224   $tpl->fillin('DIR',$upper_path);
 225   $tpl->fillin('URL',encode_entities(equal_url($config->{'httproot'},$virtual)));
 226   $tpl->fillin('SCRIPT',$script);
 227
 228   $tpl->fillin('LINK_TARGET',encode_entities($link_target));
 229  }
 230  else
 231  {
 232   # View a file
 233
 234   return error($config->{'errors'}->{'no_view'},$upper_path) unless(-r $physical);
 235
 236   # Check on binary files
 237   # We have to do it in this way or empty files will be recognized
 238   # as binary files
 239
 240   return error($config->{'errors'}->{'binary'},$upper_path) unless(-T $physical);
 241
 242   # Is the file too large?
 243
 244   return error($config->{'errors'}->{'file_too_large'},$upper_path,{SIZE => $config->{'max_file_size'}}) if($config->{'max_file_size'} && -s $physical > $config->{'max_file_size'});
 245
 246   # View the file
 247
 248   my $content =  file_read($physical);
 249   $$content   =~ s/\015\012|\012|\015/\n/g;
 250
 251   $tpl->read_file($config->{'templates'}->{'viewfile'});
 252
 253   $tpl->fillin('FILE',encode_entities($virtual));
 254   $tpl->fillin('DIR',$upper_path);
 255   $tpl->fillin('URL',encode_entities(equal_url($config->{'httproot'},$virtual)));
 256   $tpl->fillin('SCRIPT',$script);
 257
 258   $tpl->parse_if_block('editable',-w $physical && $uselist->unused($virtual));
 259
 260   $tpl->fillin('CONTENT',encode_entities($$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($$)
 279 {
 280  my ($data,$config) = @_;
 281  my $physical       = $data->{'physical'};
 282  my $virtual        = $data->{'virtual'};
 283  my $dir            = upper_path($virtual);
 284  my $uselist        = $data->{'uselist'};
 285
 286  return error($config->{'errors'}->{'link_edit'},$dir)                    if(-l $physical);
 287  return error($config->{'errors'}->{'dir_edit'}, $dir)                    if(-d $physical);
 288  return error($config->{'errors'}->{'in_use'},   $dir,{FILE => $virtual}) if($uselist->in_use($virtual));
 289  return error($config->{'errors'}->{'no_edit'},  $dir)                    unless(-r $physical && -w $physical);
 290
 291  # Check on binary files
 292
 293  return error($config->{'errors'}->{'binary'},$dir) unless(-T $physical);
 294
 295  # Is the file too large?
 296
 297  return error($config->{'errors'}->{'file_too_large'},$dir,{SIZE => $config->{'max_file_size'}}) if($config->{'max_file_size'} && -s $physical > $config->{'max_file_size'});
 298
 299  # Lock the file...
 300
 301  ($uselist->add_file($virtual) and
 302   $uselist->save)              or return error($config->{'errors'}->{'ul_add_failed'},$dir,{FILE => $virtual});
 303
 304  # ... and show the editing form
 305
 306  my $content =  file_read($physical);
 307  $$content   =~ s/\015\012|\012|\015/\n/g;
 308
 309  my $tpl = new Template;
 310  $tpl->read_file($config->{'templates'}->{'editfile'});
 311
 312  $tpl->fillin('FILE',$virtual);
 313  $tpl->fillin('DIR',$dir);
 314  $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 315  $tpl->fillin('SCRIPT',$script);
 316  $tpl->fillin('CONTENT',encode_entities($$content));
 317
 318  my $output = header(-type => 'text/html');
 319  $output   .= $tpl->get_template;
 320
 321  return \$output;
 322 }
 323
 324 # exec_canceledit()
 325 #
 326 # Abort file editing
 327 #
 328 # Params: 1. Reference to user input hash
 329 #         2. Reference to config hash
 330 #
 331 # Return: Output of the command (Scalar Reference)
 332
 333 sub exec_canceledit($$)
 334 {
 335  my ($data,$config) = @_;
 336  my $virtual        = $data->{'virtual'};
 337  my $dir            = upper_path($virtual);
 338  my $uselist        = $data->{'uselist'};
 339
 340  file_unlock($uselist,$virtual) or return error($config->{'errors'}->{'ul_rm_failed'},$dir,{FILE => $virtual, USELIST => $uselist->{'listfile'}});
 341  return devedit_reload({command => 'show', file => $dir});
 342 }
 343
 344 # exec_endedit()
 345 #
 346 # Save a file, unlock it and return to directory view
 347 #
 348 # Params: 1. Reference to user input hash
 349 #         2. Reference to config hash
 350 #
 351 # Return: Output of the command (Scalar Reference)
 352
 353 sub exec_endedit($$)
 354 {
 355  my ($data,$config) = @_;
 356  my $physical       = $data->{'physical'};
 357  my $virtual        = $data->{'virtual'};
 358  my $dir            = upper_path($virtual);
 359  my $content        = $data->{'cgi'}->param('filecontent');
 360  my $uselist        = $data->{'uselist'};
 361
 362  # We already unlock the file at the beginning of the subroutine,
 363  # because if we have to abort this routine, the file keeps locked.
 364  # No other user of Dev-Editor will access the file during this
 365  # routine because of the concept of File::UseList.
 366
 367  file_unlock($uselist,$virtual) or return error($config->{'errors'}->{'ul_rm_failed'},$dir,{FILE => $virtual, USELIST => $uselist->{'listfile'}});
 368
 369  # Normalize newlines
 370
 371  $content =~ s/\015\012|\012|\015/\n/g;
 372
 373  if($data->{'cgi'}->param('encode_iso'))
 374  {
 375   # Encode all ISO-8859-1 special chars
 376
 377   $content = encode_entities($content,"\200-\377");
 378  }
 379
 380  if($data->{'cgi'}->param('saveas') && $data->{'new_physical'} ne '' && $data->{'new_virtual'} ne '')
 381  {
 382   # Create the new filename
 383
 384   $physical = $data->{'new_physical'};
 385   $virtual  = $data->{'new_virtual'};
 386
 387   # Check if someone else is editing the new file
 388
 389   return error($config->{'errors'}->{'in_use'},$dir,{FILE => $virtual}) if($uselist->in_use($virtual));
 390  }
 391
 392  return error($config->{'errors'}->{'link_edit'},$dir)      if(-l $physical);
 393  return error($config->{'errors'}->{'dir_edit'},$dir)       if(-d $physical);
 394  return error($config->{'errors'}->{'no_edit'},$dir)        if(-e $physical && !(-r $physical && -w $physical));
 395  return error($config->{'errors'}->{'text_to_binary'},$dir) if(-e $physical && not -T $physical);
 396
 397  if(file_save($physical,\$content))
 398  {
 399   # The file was successfully saved!
 400
 401   return devedit_reload({command => 'show', file => $dir});
 402  }
 403  else
 404  {
 405   return error($config->{'errors'}->{'edit_failed'},$dir,{FILE => $virtual});
 406  }
 407 }
 408
 409 # exec_mkfile()
 410 #
 411 # Create a file and return to directory view
 412 #
 413 # Params: 1. Reference to user input hash
 414 #         2. Reference to config hash
 415 #
 416 # Return: Output of the command (Scalar Reference)
 417
 418 sub exec_mkfile($$)
 419 {
 420  my ($data,$config) = @_;
 421  my $new_physical   = $data->{'new_physical'};
 422  my $new_virtual    = $data->{'new_virtual'};
 423  my $dir            = upper_path($new_virtual);
 424  $new_virtual       = encode_entities($new_virtual);
 425
 426  if($new_physical)
 427  {
 428   return error($config->{'errors'}->{'file_exists'},$dir,{FILE => $new_virtual}) if(-e $new_physical);
 429
 430   file_create($new_physical) or return error($config->{'errors'}->{'mkfile_failed'},$dir,{FILE => $new_virtual});
 431   return devedit_reload({command => 'show', file => $dir});
 432  }
 433  else
 434  {
 435   my $tpl = new Template;
 436   $tpl->read_file($config->{'templates'}->{'mkfile'});
 437
 438   $tpl->fillin('DIR','/');
 439   $tpl->fillin('SCRIPT',$script);
 440
 441   my $output = header(-type => 'text/html');
 442   $output   .= $tpl->get_template;
 443
 444   return \$output;
 445  }
 446 }
 447
 448 # exec_mkdir()
 449 #
 450 # Create a directory and return to directory view
 451 #
 452 # Params: 1. Reference to user input hash
 453 #         2. Reference to config hash
 454 #
 455 # Return: Output of the command (Scalar Reference)
 456
 457 sub exec_mkdir($$)
 458 {
 459  my ($data,$config) = @_;
 460  my $new_physical   = $data->{'new_physical'};
 461  my $new_virtual    = $data->{'new_virtual'};
 462  my $dir            = upper_path($new_virtual);
 463  $new_virtual       = encode_entities($new_virtual);
 464
 465  if($new_physical)
 466  {
 467   return error($config->{'errors'}->{'file_exists'},$dir,{FILE => $new_virtual}) if(-e $new_physical);
 468
 469   mkdir($new_physical,0777) or return error($config->{'errors'}->{'mkdir_failed'},$dir,{DIR => $new_virtual});
 470   return devedit_reload({command => 'show', file => $dir});
 471  }
 472  else
 473  {
 474   my $tpl = new Template;
 475   $tpl->read_file($config->{'templates'}->{'mkdir'});
 476
 477   $tpl->fillin('DIR','/');
 478   $tpl->fillin('SCRIPT',$script);
 479
 480   my $output = header(-type => 'text/html');
 481   $output   .= $tpl->get_template;
 482
 483   return \$output;
 484  }
 485 }
 486
 487 # exec_upload()
 488 #
 489 # Process a file upload
 490 #
 491 # Params: 1. Reference to user input hash
 492 #         2. Reference to config hash
 493 #
 494 # Return: Output of the command (Scalar Reference)
 495
 496 sub exec_upload($$)
 497 {
 498  my ($data,$config) = @_;
 499  my $physical       = $data->{'physical'};
 500  my $virtual        = $data->{'virtual'};
 501  my $cgi            = $data->{'cgi'};
 502
 503  return error($config->{'errors'}->{'no_directory'},upper_path($virtual),{FILE => $virtual}) unless(-d $physical && not -l $physical);
 504  return error($config->{'errors'}->{'dir_no_create'},$virtual,{DIR => $virtual})             unless(-w $physical);
 505
 506  if(my $uploaded_file = $cgi->param('uploaded_file'))
 507  {
 508   # Process file upload
 509
 510   my $filename  = file_name($uploaded_file);
 511   my $file_phys = $physical.'/'.$filename;
 512   my $file_virt = $virtual.$filename;
 513
 514   return error($config->{'errors'}->{'in_use'},$virtual,{FILE => $file_virt}) if($data->{'uselist'}->in_use($file_virt));
 515
 516   if(-e $file_phys)
 517   {
 518    return error($config->{'errors'}->{'link_replace'},$virtual)                        if(-l $file_phys);
 519    return error($config->{'errors'}->{'dir_replace'},$virtual)                         if(-d $file_phys);
 520    return error($config->{'errors'}->{'exist_no_write'},$virtual,{FILE => $file_virt}) unless(-w $file_phys);
 521    return error($config->{'errors'}->{'file_exists'},$virtual,{FILE => $file_virt})    unless($cgi->param('overwrite'));
 522   }
 523
 524   my $ascii     = $cgi->param('ascii');
 525   my $handle    = $cgi->upload('uploaded_file');
 526
 527   return error($config->{'errors'}->{'invalid_upload'},$virtual) unless($handle);
 528
 529   # Read transferred file and write it to disk
 530
 531   read($handle, my $data, -s $handle);
 532   $data =~ s/\015\012|\012|\015/\n/g if($ascii); # Replace line separators if transferring in ASCII mode
 533   file_save($file_phys,\$data,not $ascii) or return error($config->{'errors'}->{'mkfile_failed'},$virtual,{FILE => $file_virt});
 534
 535   return devedit_reload({command => 'show', file => $virtual});
 536  }
 537  else
 538  {
 539   my $tpl = new Template;
 540   $tpl->read_file($config->{'templates'}->{'upload'});
 541
 542   $tpl->fillin('DIR',$virtual);
 543   $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 544   $tpl->fillin('SCRIPT',$script);
 545
 546   my $output = header(-type => 'text/html');
 547   $output   .= $tpl->get_template;
 548
 549   return \$output;
 550  }
 551 }
 552
 553 # exec_copy()
 554 #
 555 # Copy a file and return to directory view
 556 #
 557 # Params: 1. Reference to user input hash
 558 #         2. Reference to config hash
 559 #
 560 # Return: Output of the command (Scalar Reference)
 561
 562 sub exec_copy($$)
 563 {
 564  my ($data,$config) = @_;
 565  my $physical       = $data->{'physical'};
 566  my $virtual        = encode_entities($data->{'virtual'});
 567  my $dir            = upper_path($virtual);
 568  my $new_physical   = $data->{'new_physical'};
 569
 570  return error($config->{'errors'}->{'link_copy'},$dir) if(-l $physical);
 571  return error($config->{'errors'}->{'dir_copy'},$dir)  if(-d $physical);
 572  return error($config->{'errors'}->{'no_copy'},$dir)   unless(-r $physical);
 573
 574  if($new_physical)
 575  {
 576   my $new_virtual = $data->{'new_virtual'};
 577   my $new_dir     = upper_path($new_virtual);
 578   $new_virtual    = encode_entities($new_virtual);
 579
 580   if(-e $new_physical)
 581   {
 582    return error($config->{'errors'}->{'exist_edited'},$new_dir,{FILE => $new_virtual})   if($data->{'uselist'}->in_use($data->{'new_virtual'}));
 583    return error($config->{'errors'}->{'link_replace'},$new_dir)                          if(-l $new_physical);
 584    return error($config->{'errors'}->{'dir_replace'},$new_dir)                           if(-d $new_physical);
 585    return error($config->{'errors'}->{'exist_no_write'},$new_dir,{FILE => $new_virtual}) unless(-w $new_physical);
 586
 587    if(not $data->{'cgi'}->param('confirmed'))
 588    {
 589     my $tpl = new Template;
 590     $tpl->read_file($config->{'templates'}->{'confirm_replace'});
 591
 592     $tpl->fillin('FILE',$virtual);
 593     $tpl->fillin('NEW_FILE',$new_virtual);
 594     $tpl->fillin('NEW_FILENAME',file_name($new_virtual));
 595     $tpl->fillin('NEW_DIR',$new_dir);
 596     $tpl->fillin('DIR',$dir);
 597
 598     $tpl->fillin('COMMAND','copy');
 599     $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 600     $tpl->fillin('SCRIPT',$script);
 601
 602     my $output = header(-type => 'text/html');
 603     $output   .= $tpl->get_template;
 604
 605     return \$output;
 606    }
 607   }
 608
 609   copy($physical,$new_physical) or return error($config->{'errors'}->{'copy_failed'},$dir,{FILE => $virtual, NEW_FILE => $new_virtual});
 610   return devedit_reload({command => 'show', file => $new_dir});
 611  }
 612  else
 613  {
 614   my $tpl = new Template;
 615   $tpl->read_file($config->{'templates'}->{'copyfile'});
 616
 617   $tpl->fillin('FILE',$virtual);
 618   $tpl->fillin('DIR',$dir);
 619   $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 620   $tpl->fillin('SCRIPT',$script);
 621
 622   my $output = header(-type => 'text/html');
 623   $output   .= $tpl->get_template;
 624
 625   return \$output;
 626  }
 627 }
 628
 629 # exec_rename()
 630 #
 631 # Rename/move a file and return to directory view
 632 #
 633 # Params: 1. Reference to user input hash
 634 #         2. Reference to config hash
 635 #
 636 # Return: Output of the command (Scalar Reference)
 637
 638 sub exec_rename($$)
 639 {
 640  my ($data,$config) = @_;
 641  my $physical       = $data->{'physical'};
 642  my $virtual        = $data->{'virtual'};
 643  my $dir            = upper_path($virtual);
 644  my $new_physical   = $data->{'new_physical'};
 645
 646  return error($config->{'errors'}->{'rename_root'},'/')                if($virtual eq '/');
 647  return error($config->{'errors'}->{'no_rename'},$dir)                 unless(-w upper_path($physical));
 648  return error($config->{'errors'}->{'in_use'},$dir,{FILE => $virtual}) if($data->{'uselist'}->in_use($virtual));
 649
 650  if($new_physical)
 651  {
 652   my $new_virtual = $data->{'new_virtual'};
 653   my $new_dir     = upper_path($new_virtual);
 654   $new_virtual    = encode_entities($new_virtual);
 655
 656   if(-e $new_physical)
 657   {
 658    return error($config->{'errors'}->{'exist_edited'},$new_dir,{FILE => $new_virtual})   if($data->{'uselist'}->in_use($data->{'new_virtual'}));
 659    return error($config->{'errors'}->{'dir_replace'},$new_dir)                           if(-d $new_physical && not -l $new_physical);
 660    return error($config->{'errors'}->{'exist_no_write'},$new_dir,{FILE => $new_virtual}) unless(-w $new_physical);
 661
 662    if(not $data->{'cgi'}->param('confirmed'))
 663    {
 664     my $tpl = new Template;
 665     $tpl->read_file($config->{'templates'}->{'confirm_replace'});
 666
 667     $tpl->fillin('FILE',$virtual);
 668     $tpl->fillin('NEW_FILE',$new_virtual);
 669     $tpl->fillin('NEW_FILENAME',file_name($new_virtual));
 670     $tpl->fillin('NEW_DIR',$new_dir);
 671     $tpl->fillin('DIR',$dir);
 672
 673     $tpl->fillin('COMMAND','rename');
 674     $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 675     $tpl->fillin('SCRIPT',$script);
 676
 677     my $output = header(-type => 'text/html');
 678     $output   .= $tpl->get_template;
 679
 680     return \$output;
 681    }
 682   }
 683
 684   move($physical,$new_physical) or return error($config->{'errors'}->{'rename_failed'},$dir,{FILE => $virtual, NEW_FILE => $new_virtual});
 685   return devedit_reload({command => 'show', file => $new_dir});
 686  }
 687  else
 688  {
 689   my $tpl = new Template;
 690   $tpl->read_file($config->{'templates'}->{'renamefile'});
 691
 692   $tpl->fillin('FILE',$virtual);
 693   $tpl->fillin('DIR',$dir);
 694   $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 695   $tpl->fillin('SCRIPT',$script);
 696
 697   my $output = header(-type => 'text/html');
 698   $output   .= $tpl->get_template;
 699
 700   return \$output;
 701  }
 702 }
 703
 704 # exec_remove()
 705 #
 706 # Remove a file or a directory and return to directory view
 707 #
 708 # Params: 1. Reference to user input hash
 709 #         2. Reference to config hash
 710 #
 711 # Return: Output of the command (Scalar Reference)
 712
 713 sub exec_remove($$)
 714 {
 715  my ($data,$config) = @_;
 716  my $physical       = $data->{'physical'};
 717  my $virtual        = $data->{'virtual'};
 718  my $dir            = upper_path($virtual);
 719
 720  return error($config->{'errors'}->{'remove_root'},'/') if($virtual eq '/');
 721  return error($config->{'errors'}->{'no_delete'},$dir)  unless(-w upper_path($physical));
 722
 723  if(-d $physical && not -l $physical)
 724  {
 725   # Remove a directory
 726
 727   if($data->{'cgi'}->param('confirmed'))
 728   {
 729    rmtree($physical);
 730    return devedit_reload({command => 'show', file => $dir});
 731   }
 732   else
 733   {
 734    my $tpl = new Template;
 735    $tpl->read_file($config->{'templates'}->{'confirm_rmdir'});
 736
 737    $tpl->fillin('DIR',$virtual);
 738    $tpl->fillin('UPPER_DIR',$dir);
 739    $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 740    $tpl->fillin('SCRIPT',$script);
 741
 742    my $output = header(-type => 'text/html');
 743    $output   .= $tpl->get_template;
 744
 745    return \$output;
 746   }
 747  }
 748  else
 749  {
 750   # Remove a file
 751
 752   return error($config->{'errors'}->{'in_use'},$dir,{FILE => $virtual}) if($data->{'uselist'}->in_use($virtual));
 753
 754   if($data->{'cgi'}->param('confirmed'))
 755   {
 756    unlink($physical) or return error($config->{'errors'}->{'delete_failed'},$dir,{FILE => $virtual});
 757    return devedit_reload({command => 'show', file => $dir});
 758   }
 759   else
 760   {
 761    my $tpl = new Template;
 762    $tpl->read_file($config->{'templates'}->{'confirm_rmfile'});
 763
 764    $tpl->fillin('FILE',$virtual);
 765    $tpl->fillin('DIR',$dir);
 766    $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 767    $tpl->fillin('SCRIPT',$script);
 768
 769    my $output = header(-type => 'text/html');
 770    $output   .= $tpl->get_template;
 771
 772    return \$output;
 773   }
 774  }
 775 }
 776
 777 # exec_chprop()
 778 #
 779 # Change the mode and the group of a file or a directory
 780 #
 781 # Params: 1. Reference to user input hash
 782 #         2. Reference to config hash
 783 #
 784 # Return: Output of the command (Scalar Reference)
 785
 786 sub exec_chprop($$)
 787 {
 788  my ($data,$config) = @_;
 789  my $physical       = $data->{'physical'};
 790  my $virtual        = $data->{'virtual'};
 791  my $dir            = upper_path($virtual);
 792
 793  return error($config->{'errors'}->{'no_users'},$dir,{FILE => $virtual})  unless($users);
 794  return error($config->{'errors'}->{'chprop_root'},'/')                   if($virtual eq '/');
 795  return error($config->{'errors'}->{'not_owner'},$dir,{FILE => $virtual}) unless(-o $physical);
 796  return error($config->{'errors'}->{'chprop_link'},$dir)                  if(-l $physical);
 797  return error($config->{'errors'}->{'in_use'},$dir,{FILE => $virtual})    if($data->{'uselist'}->in_use($virtual));
 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_unlock()
 864 #
 865 # Remove a file from the list of used files and
 866 # return to directory view
 867 #
 868 # Params: 1. Reference to user input hash
 869 #         2. Reference to config hash
 870 #
 871 # Return: Output of the command (Scalar Reference)
 872
 873 sub exec_unlock($$)
 874 {
 875  my ($data,$config) = @_;
 876  my $virtual        = $data->{'virtual'};
 877  my $uselist        = $data->{'uselist'};
 878  my $dir            = upper_path($virtual);
 879
 880  return devedit_reload({command => 'show', file => $dir}) if($uselist->unused($virtual));
 881
 882  if($data->{'cgi'}->param('confirmed'))
 883  {
 884   file_unlock($uselist,$virtual) or return error($config->{'errors'}->{'ul_rm_failed'},$dir,{FILE => $virtual, USELIST => $uselist->{'listfile'}});
 885   return devedit_reload({command => 'show', file => $dir});
 886  }
 887  else
 888  {
 889   my $tpl = new Template;
 890   $tpl->read_file($config->{'templates'}->{'confirm_unlock'});
 891
 892   $tpl->fillin('FILE',$virtual);
 893   $tpl->fillin('DIR',$dir);
 894   $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 895   $tpl->fillin('SCRIPT',$script);
 896
 897   my $output = header(-type => 'text/html');
 898   $output   .= $tpl->get_template;
 899
 900   return \$output;
 901  }
 902 }
 903
 904 # exec_about()
 905 #
 906 # Display some information about Dev-Editor
 907 #
 908 # Params: 1. Reference to user input hash
 909 #         2. Reference to config hash
 910 #
 911 # Return: Output of the command (Scalar Reference)
 912
 913 sub exec_about($$)
 914 {
 915  my ($data,$config) = @_;
 916
 917  my $tpl = new Template;
 918  $tpl->read_file($config->{'templates'}->{'about'});
 919
 920  $tpl->fillin('SCRIPT',$script);
 921
 922  # Dev-Editor's version number
 923
 924  $tpl->fillin('VERSION',$data->{'version'});
 925
 926  # Some path information
 927
 928  $tpl->fillin('SCRIPT_PHYS',encode_entities($ENV{'SCRIPT_FILENAME'}));
 929  $tpl->fillin('CONFIG_PATH',encode_entities($data->{'configfile'}));
 930  $tpl->fillin('FILE_ROOT',  encode_entities($config->{'fileroot'}));
 931  $tpl->fillin('HTTP_ROOT',  encode_entities($config->{'httproot'}));
 932
 933  # Perl
 934
 935  $tpl->fillin('PERL_PROG',encode_entities($^X));
 936  $tpl->fillin('PERL_VER', sprintf('%vd',$^V));
 937
 938  # Information about the server
 939
 940  $tpl->fillin('HTTPD',encode_entities($ENV{'SERVER_SOFTWARE'}));
 941  $tpl->fillin('OS',   encode_entities($^O));
 942  $tpl->fillin('TIME', encode_entities(strftime($config->{'timeformat'},($config->{'use_gmt'}) ? gmtime : localtime)));
 943
 944  $tpl->parse_if_block('gmt',$config->{'use_gmt'});
 945
 946  # Process information
 947
 948  $tpl->fillin('PID',$$);
 949
 950  # The following information is only available on systems supporting
 951  # users and groups
 952
 953  if($users)
 954  {
 955   # Dev-Editor is running on a system which allows users and groups
 956   # So we display the user and the group of our process
 957
 958   my $uid = POSIX::getuid;
 959   my $gid = POSIX::getgid;
 960
 961   $tpl->parse_if_block('users',1);
 962
 963   # ID's of user and group
 964
 965   $tpl->fillin('UID',$uid);
 966   $tpl->fillin('GID',$gid);
 967
 968   # Names of user and group
 969
 970   if(my $user = getpwuid($uid))
 971   {
 972    $tpl->fillin('USER',encode_entities($user));
 973    $tpl->parse_if_block('user_detected',1);
 974   }
 975   else
 976   {
 977    $tpl->parse_if_block('user_detected',0);
 978   }
 979
 980   if(my $group = getgrgid($gid))
 981   {
 982    $tpl->fillin('GROUP',encode_entities($group));
 983    $tpl->parse_if_block('group_detected',1);
 984   }
 985   else
 986   {
 987    $tpl->parse_if_block('group_detected',0);
 988   }
 989
 990   # Process umask
 991
 992   $tpl->fillin('UMASK',sprintf('%04o',umask));
 993  }
 994  else
 995  {
 996   $tpl->parse_if_block('users',0);
 997  }
 998
 999  my $output = header(-type => 'text/html');
1000  $output   .= $tpl->get_template;
1001
1002  return \$output;
1003 }
1004
1005 # it's true, baby ;-)
1006
1007 1;
1008
1009 #
1010 ### End ###