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: 2004-12-28
  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 $physical)
 100  {
 101   # Create directory listing
 102
 103   return error($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 '*') ? $filter1 : ''; # Wildcard for output
 117
 118   # Create the link to the upper directory
 119   # (only if we are not in the root directory)
 120
 121   unless($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'},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'},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.$file);
 167
 168    my @stat      = stat($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'},localtime($stat[9]))));
 179    $ftpl->fillin("URL",equal_url(encode_entities($config->{'httproot'}),$virt_path));
 180
 181    $ftpl->parse_if_block("not_readable",not -r $phys_path);
 182    $ftpl->parse_if_block("binary",-B $phys_path);
 183    $ftpl->parse_if_block("readonly",not -w $phys_path);
 184
 185    $ftpl->parse_if_block("viewable",-r $phys_path && -T $phys_path && not $too_large);
 186    $ftpl->parse_if_block("editable",(-r $phys_path && -w $phys_path && -T $phys_path && not $too_large) && not $in_use);
 187
 188    $ftpl->parse_if_block("in_use",$in_use);
 189    $ftpl->parse_if_block("unused",not $in_use);
 190
 191    $ftpl->parse_if_block("too_large",$config->{'max_file_size'} && $stat[7] > $config->{'max_file_size'});
 192
 193    $ftpl->parse_if_block("users",$users && -o $phys_path);
 194
 195    $dirlist .= $ftpl->get_template;
 196   }
 197
 198   $tpl->read_file($config->{'templates'}->{'dirlist'});
 199
 200   $tpl->fillin("DIRLIST",$dirlist);
 201   $tpl->fillin("DIR",encode_entities($virtual));
 202   $tpl->fillin("SCRIPT",$script);
 203   $tpl->fillin("URL",encode_entities(equal_url($config->{'httproot'},$virtual)));
 204
 205   $tpl->fillin("FILTER",encode_entities($filter2));
 206   $tpl->fillin("FILTER_URL",escape($filter2));
 207
 208   $tpl->parse_if_block("dir_writeable",$dir_writeable);
 209   $tpl->parse_if_block("filter",$filter2);
 210  }
 211  else
 212  {
 213   # View a file
 214
 215   return error($config->{'errors'}->{'no_view'},$upper_path) unless(-r $physical);
 216
 217   # Check on binary files
 218   # We have to do it in this way or empty files will be recognized
 219   # as binary files
 220
 221   return error($config->{'errors'}->{'binary'},$upper_path) unless(-T $physical);
 222
 223   # Is the file too large?
 224
 225   return error($config->{'errors'}->{'file_too_large'},$upper_path,{SIZE => $config->{'max_file_size'}}) if($config->{'max_file_size'} && -s $physical > $config->{'max_file_size'});
 226
 227   # View the file
 228
 229   my $content =  file_read($physical);
 230   $$content   =~ s/\015\012|\012|\015/\n/g;
 231
 232   $tpl->read_file($config->{'templates'}->{'viewfile'});
 233
 234   $tpl->fillin("FILE",encode_entities($virtual));
 235   $tpl->fillin("DIR",$upper_path);
 236   $tpl->fillin("URL",encode_entities(equal_url($config->{'httproot'},$virtual)));
 237   $tpl->fillin("SCRIPT",$script);
 238
 239   $tpl->parse_if_block("editable",-w $physical && $uselist->unused($virtual));
 240
 241   $tpl->fillin("CONTENT",encode_entities($$content));
 242  }
 243
 244  my $output  = header(-type => "text/html");
 245  $output    .= $tpl->get_template;
 246
 247  return \$output;
 248 }
 249
 250 # exec_beginedit
 251 #
 252 # Lock a file and display a form to edit it
 253 #
 254 # Params: 1. Reference to user input hash
 255 #         2. Reference to config hash
 256 #
 257 # Return: Output of the command (Scalar Reference)
 258
 259 sub exec_beginedit($$)
 260 {
 261  my ($data,$config) = @_;
 262  my $physical       = $data->{'physical'};
 263  my $virtual        = $data->{'virtual'};
 264  my $dir            = upper_path($virtual);
 265  my $uselist        = $data->{'uselist'};
 266
 267  return error($config->{'errors'}->{'editdir'},$dir)                    if(-d $physical);
 268  return error($config->{'errors'}->{'in_use'}, $dir,{FILE => $virtual}) if($uselist->in_use($virtual));
 269  return error($config->{'errors'}->{'no_edit'},$dir)                    unless(-r $physical && -w $physical);
 270
 271  # Check on binary files
 272
 273  return error($config->{'errors'}->{'binary'},$dir) unless(-T $physical);
 274
 275  # Is the file too large?
 276
 277  return error($config->{'errors'}->{'file_too_large'},$dir,{SIZE => $config->{'max_file_size'}}) if($config->{'max_file_size'} && -s $physical > $config->{'max_file_size'});
 278
 279  # Lock the file...
 280
 281  $uselist->add_file($virtual);
 282  $uselist->save;
 283
 284  # ... and show the editing form
 285
 286  my $content =  file_read($physical);
 287  $$content   =~ s/\015\012|\012|\015/\n/g;
 288
 289  my $tpl = new Template;
 290  $tpl->read_file($config->{'templates'}->{'editfile'});
 291
 292  $tpl->fillin("FILE",$virtual);
 293  $tpl->fillin("DIR",$dir);
 294  $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 295  $tpl->fillin("SCRIPT",$script);
 296  $tpl->fillin("CONTENT",encode_entities($$content));
 297
 298  my $output = header(-type => "text/html");
 299  $output   .= $tpl->get_template;
 300
 301  return \$output;
 302 }
 303
 304 # exec_canceledit()
 305 #
 306 # Abort file editing
 307 #
 308 # Params: 1. Reference to user input hash
 309 #         2. Reference to config hash
 310 #
 311 # Return: Output of the command (Scalar Reference)
 312
 313 sub exec_canceledit($$)
 314 {
 315  my ($data,$config) = @_;
 316  my $virtual        = $data->{'virtual'};
 317
 318  file_unlock($data->{'uselist'},$virtual);
 319  return devedit_reload({command => 'show', file => upper_path($virtual)});
 320 }
 321
 322 # exec_endedit()
 323 #
 324 # Save a file, unlock it and return to directory view
 325 #
 326 # Params: 1. Reference to user input hash
 327 #         2. Reference to config hash
 328 #
 329 # Return: Output of the command (Scalar Reference)
 330
 331 sub exec_endedit($$)
 332 {
 333  my ($data,$config) = @_;
 334  my $physical       = $data->{'physical'};
 335  my $virtual        = $data->{'virtual'};
 336  my $dir            = upper_path($virtual);
 337  my $content        = $data->{'cgi'}->param('filecontent');
 338  my $uselist        = $data->{'uselist'};
 339
 340  # We already unlock the file at the beginning of the subroutine,
 341  # because if we have to abort this routine, the file keeps locked.
 342  # No other user of Dev-Editor will access the file during this
 343  # routine because of the concept of File::UseList.
 344
 345  file_unlock($uselist,$virtual);
 346
 347  # Normalize newlines
 348
 349  $content =~ s/\015\012|\012|\015/\n/g;
 350
 351  if($data->{'cgi'}->param('encode_iso'))
 352  {
 353   # Encode all ISO-8859-1 special chars
 354
 355   $content = encode_entities($content,"\200-\377");
 356  }
 357
 358  if($data->{'cgi'}->param('saveas') && $data->{'new_physical'} ne '' && $data->{'new_virtual'} ne '')
 359  {
 360   # Create the new filename
 361
 362   $physical = $data->{'new_physical'};
 363   $virtual  = $data->{'new_virtual'};
 364
 365   # Check if someone else is editing the new file
 366
 367   return error($config->{'errors'}->{'in_use'},$dir,{FILE => $virtual}) if($uselist->in_use($virtual));
 368  }
 369
 370  return error($config->{'errors'}->{'editdir'},$dir)        if(-d $physical);
 371  return error($config->{'errors'}->{'no_edit'},$dir)        if(-e $physical && !(-r $physical && -w $physical));
 372  return error($config->{'errors'}->{'text_to_binary'},$dir) unless(-T $physical);
 373
 374  if(file_save($physical,\$content))
 375  {
 376   # Saving of the file was successful!
 377
 378   return devedit_reload({command => 'show', file => $dir});
 379  }
 380  else
 381  {
 382   return error($config->{'errors'}->{'edit_failed'},$dir,{FILE => $virtual});
 383  }
 384 }
 385
 386 # exec_mkfile()
 387 #
 388 # Create a file and return to directory view
 389 #
 390 # Params: 1. Reference to user input hash
 391 #         2. Reference to config hash
 392 #
 393 # Return: Output of the command (Scalar Reference)
 394
 395 sub exec_mkfile($$)
 396 {
 397  my ($data,$config) = @_;
 398  my $new_physical   = $data->{'new_physical'};
 399  my $new_virtual    = $data->{'new_virtual'};
 400  my $dir            = upper_path($new_virtual);
 401  $new_virtual       = encode_entities($new_virtual);
 402
 403  if($new_physical)
 404  {
 405   return error($config->{'errors'}->{'file_exists'},$dir,{FILE => $new_virtual}) if(-e $new_physical);
 406
 407   file_create($new_physical) or return error($config->{'errors'}->{'mkfile_failed'},$dir,{FILE => $new_virtual});
 408   return devedit_reload({command => 'show', file => $dir});
 409  }
 410  else
 411  {
 412   my $tpl = new Template;
 413   $tpl->read_file($config->{'templates'}->{'mkfile'});
 414
 415   $tpl->fillin("DIR","/");
 416   $tpl->fillin("SCRIPT",$script);
 417
 418   my $output = header(-type => "text/html");
 419   $output   .= $tpl->get_template;
 420
 421   return \$output;
 422  }
 423 }
 424
 425 # exec_mkdir()
 426 #
 427 # Create a directory and return to directory view
 428 #
 429 # Params: 1. Reference to user input hash
 430 #         2. Reference to config hash
 431 #
 432 # Return: Output of the command (Scalar Reference)
 433
 434 sub exec_mkdir($$)
 435 {
 436  my ($data,$config) = @_;
 437  my $new_physical   = $data->{'new_physical'};
 438  my $new_virtual    = $data->{'new_virtual'};
 439  my $dir            = upper_path($new_virtual);
 440  $new_virtual       = encode_entities($new_virtual);
 441
 442  return error($config->{'errors'}->{'file_exists'},$dir,{FILE => $new_virtual}) if(-e $new_physical);
 443
 444  if($new_physical)
 445  {
 446   mkdir($new_physical,0777) or return error($config->{'errors'}->{'mkdir_failed'},$dir,{DIR => $new_virtual});
 447   return devedit_reload({command => 'show', file => $dir});
 448  }
 449  else
 450  {
 451   my $tpl = new Template;
 452   $tpl->read_file($config->{'templates'}->{'mkdir'});
 453
 454   $tpl->fillin("DIR","/");
 455   $tpl->fillin("SCRIPT",$script);
 456
 457   my $output = header(-type => "text/html");
 458   $output   .= $tpl->get_template;
 459
 460   return \$output;
 461  }
 462 }
 463
 464 # exec_upload()
 465 #
 466 # Upload a file
 467 #
 468 # Params: 1. Reference to user input hash
 469 #         2. Reference to config hash
 470 #
 471 # Return: Output of the command (Scalar Reference)
 472
 473 sub exec_upload($$)
 474 {
 475  my ($data,$config) = @_;
 476  my $physical       = $data->{'physical'};
 477  my $virtual        = $data->{'virtual'};
 478  my $cgi            = $data->{'cgi'};
 479
 480  return error($config->{'errors'}->{'no_directory'},upper_path($virtual),{FILE => $virtual}) unless(-d $physical);
 481  return error($config->{'errors'}->{'dir_no_create'},$virtual,{DIR => $virtual})             unless(-w $physical);
 482
 483  if(my $uploaded_file = $cgi->param('uploaded_file'))
 484  {
 485   # Process file upload
 486
 487   my $filename  = file_name($uploaded_file);
 488   my $file_phys = $physical."/".$filename;
 489   my $file_virt = $virtual.$filename;
 490
 491   return error($config->{'errors'}->{'in_use'},$virtual,{FILE => $file_virt}) if($data->{'uselist'}->in_use($file_virt));
 492
 493   if(-e $file_phys)
 494   {
 495    return error($config->{'errors'}->{'dir_replace'},$virtual)                         if(-d $file_phys);
 496    return error($config->{'errors'}->{'exist_no_write'},$virtual,{FILE => $file_virt}) unless(-w $file_phys);
 497    return error($config->{'errors'}->{'file_exists'},$virtual,{FILE => $file_virt})    unless($cgi->param('overwrite'));
 498   }
 499
 500   my $ascii     = $cgi->param('ascii');
 501   my $handle    = $cgi->upload('uploaded_file');
 502
 503   # Read transferred file and write it to disk
 504
 505   read($handle, my $data, -s $handle);
 506   $data =~ s/\015\012|\012|\015/\n/g if($ascii); # Replace line separators if transferring in ASCII mode
 507   file_save($file_phys,\$data,not $ascii) or return error($config->{'errors'}->{'mkfile_failed'},$virtual,{FILE => $file_virt});
 508
 509   return devedit_reload({command => "show", file => $virtual});
 510  }
 511  else
 512  {
 513   my $tpl = new Template;
 514   $tpl->read_file($config->{'templates'}->{'upload'});
 515
 516   $tpl->fillin("DIR",$virtual);
 517   $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 518   $tpl->fillin("SCRIPT",$script);
 519
 520   my $output = header(-type => "text/html");
 521   $output   .= $tpl->get_template;
 522
 523   return \$output;
 524  }
 525 }
 526
 527 # exec_copy()
 528 #
 529 # Copy a file and return to directory view
 530 #
 531 # Params: 1. Reference to user input hash
 532 #         2. Reference to config hash
 533 #
 534 # Return: Output of the command (Scalar Reference)
 535
 536 sub exec_copy($$)
 537 {
 538  my ($data,$config) = @_;
 539  my $physical       = $data->{'physical'};
 540  my $virtual        = encode_entities($data->{'virtual'});
 541  my $dir            = upper_path($virtual);
 542  my $new_physical   = $data->{'new_physical'};
 543
 544  return error($config->{'errors'}->{'dircopy'},$dir) if(-d $physical);
 545  return error($config->{'errors'}->{'no_copy'},$dir) unless(-r $physical);
 546
 547  if($new_physical)
 548  {
 549   my $new_virtual = $data->{'new_virtual'};
 550   my $new_dir     = upper_path($new_virtual);
 551   $new_virtual    = encode_entities($new_virtual);
 552
 553   if(-e $new_physical)
 554   {
 555    return error($config->{'errors'}->{'exist_edited'},$new_dir,{FILE => $new_virtual})   if($data->{'uselist'}->in_use($data->{'new_virtual'}));
 556    return error($config->{'errors'}->{'dir_replace'},$new_dir)                           if(-d $new_physical);
 557    return error($config->{'errors'}->{'exist_no_write'},$new_dir,{FILE => $new_virtual}) unless(-w $new_physical);
 558
 559    if(not $data->{'cgi'}->param('confirmed'))
 560    {
 561     my $tpl = new Template;
 562     $tpl->read_file($config->{'templates'}->{'confirm_replace'});
 563
 564     $tpl->fillin("FILE",$virtual);
 565     $tpl->fillin("NEW_FILE",$new_virtual);
 566     $tpl->fillin("NEW_FILENAME",file_name($new_virtual));
 567     $tpl->fillin("NEW_DIR",$new_dir);
 568     $tpl->fillin("DIR",$dir);
 569
 570     $tpl->fillin("COMMAND","copy");
 571     $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 572     $tpl->fillin("SCRIPT",$script);
 573
 574     my $output = header(-type => "text/html");
 575     $output   .= $tpl->get_template;
 576
 577     return \$output;
 578    }
 579   }
 580
 581   copy($physical,$new_physical) or return error($config->{'errors'}->{'copy_failed'},$dir,{FILE => $virtual, NEW_FILE => $new_virtual});
 582   return devedit_reload({command => 'show', file => $new_dir});
 583  }
 584  else
 585  {
 586   my $tpl = new Template;
 587   $tpl->read_file($config->{'templates'}->{'copyfile'});
 588
 589   $tpl->fillin("FILE",$virtual);
 590   $tpl->fillin("DIR",$dir);
 591   $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 592   $tpl->fillin("SCRIPT",$script);
 593
 594   my $output = header(-type => "text/html");
 595   $output   .= $tpl->get_template;
 596
 597   return \$output;
 598  }
 599 }
 600
 601 # exec_rename()
 602 #
 603 # Rename/move a file and return to directory view
 604 #
 605 # Params: 1. Reference to user input hash
 606 #         2. Reference to config hash
 607 #
 608 # Return: Output of the command (Scalar Reference)
 609
 610 sub exec_rename($$)
 611 {
 612  my ($data,$config) = @_;
 613  my $physical       = $data->{'physical'};
 614  my $virtual        = $data->{'virtual'};
 615  my $dir            = upper_path($virtual);
 616  my $new_physical   = $data->{'new_physical'};
 617
 618  return error($config->{'errors'}->{'rename_root'},"/")                if($virtual eq "/");
 619  return error($config->{'errors'}->{'no_rename'},$dir)                 unless(-w upper_path($physical));
 620  return error($config->{'errors'}->{'in_use'},$dir,{FILE => $virtual}) if($data->{'uselist'}->in_use($virtual));
 621
 622  if($new_physical)
 623  {
 624   my $new_virtual = $data->{'new_virtual'};
 625   my $new_dir     = upper_path($new_virtual);
 626   $new_virtual    = encode_entities($new_virtual);
 627
 628   if(-e $new_physical)
 629   {
 630    return error($config->{'errors'}->{'exist_edited'},$new_dir,{FILE => $new_virtual})   if($data->{'uselist'}->in_use($data->{'new_virtual'}));
 631    return error($config->{'errors'}->{'dir_replace'},$new_dir)                           if(-d $new_physical);
 632    return error($config->{'errors'}->{'exist_no_write'},$new_dir,{FILE => $new_virtual}) unless(-w $new_physical);
 633
 634    if(not $data->{'cgi'}->param('confirmed'))
 635    {
 636     my $tpl = new Template;
 637     $tpl->read_file($config->{'templates'}->{'confirm_replace'});
 638
 639     $tpl->fillin("FILE",$virtual);
 640     $tpl->fillin("NEW_FILE",$new_virtual);
 641     $tpl->fillin("NEW_FILENAME",file_name($new_virtual));
 642     $tpl->fillin("NEW_DIR",$new_dir);
 643     $tpl->fillin("DIR",$dir);
 644
 645     $tpl->fillin("COMMAND","rename");
 646     $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 647     $tpl->fillin("SCRIPT",$script);
 648
 649     my $output = header(-type => "text/html");
 650     $output   .= $tpl->get_template;
 651
 652     return \$output;
 653    }
 654   }
 655
 656   rename($physical,$new_physical) or return error($config->{'errors'}->{'rename_failed'},$dir,{FILE => $virtual, NEW_FILE => $new_virtual});
 657   return devedit_reload({command => 'show', file => $new_dir});
 658  }
 659  else
 660  {
 661   my $tpl = new Template;
 662   $tpl->read_file($config->{'templates'}->{'renamefile'});
 663
 664   $tpl->fillin("FILE",$virtual);
 665   $tpl->fillin("DIR",$dir);
 666   $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 667   $tpl->fillin("SCRIPT",$script);
 668
 669   my $output = header(-type => "text/html");
 670   $output   .= $tpl->get_template;
 671
 672   return \$output;
 673  }
 674 }
 675
 676 # exec_remove()
 677 #
 678 # Remove a file or a directory and return to directory view
 679 #
 680 # Params: 1. Reference to user input hash
 681 #         2. Reference to config hash
 682 #
 683 # Return: Output of the command (Scalar Reference)
 684
 685 sub exec_remove($$)
 686 {
 687  my ($data,$config) = @_;
 688  my $physical       = $data->{'physical'};
 689  my $virtual        = $data->{'virtual'};
 690  my $dir            = upper_path($virtual);
 691
 692  return error($config->{'errors'}->{'remove_root'},"/") if($virtual eq "/");
 693  return error($config->{'errors'}->{'no_delete'},$dir)  unless(-w upper_path($physical));
 694
 695  if(-d $physical)
 696  {
 697   # Remove a directory
 698
 699   if($data->{'cgi'}->param('confirmed'))
 700   {
 701    rmtree($physical);
 702    return devedit_reload({command => 'show', file => $dir});
 703   }
 704   else
 705   {
 706    my $tpl = new Template;
 707    $tpl->read_file($config->{'templates'}->{'confirm_rmdir'});
 708
 709    $tpl->fillin("DIR",$virtual);
 710    $tpl->fillin("UPPER_DIR",$dir);
 711    $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 712    $tpl->fillin("SCRIPT",$script);
 713
 714    my $output = header(-type => "text/html");
 715    $output   .= $tpl->get_template;
 716
 717    return \$output;
 718   }
 719  }
 720  else
 721  {
 722   # Remove a file
 723
 724   return error($config->{'errors'}->{'in_use'},$dir,{FILE => $virtual}) if($data->{'uselist'}->in_use($virtual));
 725
 726   if($data->{'cgi'}->param('confirmed'))
 727   {
 728    unlink($physical) or return error($config->{'errors'}->{'delete_failed'},$dir,{FILE => $virtual});
 729    return devedit_reload({command => 'show', file => $dir});
 730   }
 731   else
 732   {
 733    my $tpl = new Template;
 734    $tpl->read_file($config->{'templates'}->{'confirm_rmfile'});
 735
 736    $tpl->fillin("FILE",$virtual);
 737    $tpl->fillin("DIR",$dir);
 738    $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 739    $tpl->fillin("SCRIPT",$script);
 740
 741    my $output = header(-type => "text/html");
 742    $output   .= $tpl->get_template;
 743
 744    return \$output;
 745   }
 746  }
 747 }
 748
 749 # exec_chprop()
 750 #
 751 # Change the mode and the group of a file or a directory
 752 #
 753 # Params: 1. Reference to user input hash
 754 #         2. Reference to config hash
 755 #
 756 # Return: Output of the command (Scalar Reference)
 757
 758 sub exec_chprop($$)
 759 {
 760  my ($data,$config) = @_;
 761  my $physical       = $data->{'physical'};
 762  my $virtual        = $data->{'virtual'};
 763  my $dir            = upper_path($virtual);
 764
 765  return error($config->{'errors'}->{'no_users'},$dir,{FILE => $virtual})  unless($users);
 766  return error($config->{'errors'}->{'chprop_root'},"/")                   if($virtual eq "/");
 767  return error($config->{'errors'}->{'not_owner'},$dir,{FILE => $virtual}) unless(-o $physical);
 768  return error($config->{'errors'}->{'in_use'},$dir,{FILE => $virtual})    if($data->{'uselist'}->in_use($virtual));
 769
 770  my $cgi   = $data->{'cgi'};
 771  my $mode  = $cgi->param('mode');
 772  my $group = $cgi->param('group');
 773
 774  if($mode || $group)
 775  {
 776   if($mode)
 777   {
 778    # Change the mode
 779
 780    chmod(oct($mode),$physical);
 781   }
 782
 783   if($group)
 784   {
 785    # Change the group using the `chgrp` system command
 786
 787    return error($config->{'errors'}->{'invalid_group'},$dir,{GROUP => encode_entities($group)}) unless($group =~ /^[a-z0-9_]+[a-z0-9_-]*$/i);
 788    system("chgrp",$group,$physical);
 789   }
 790
 791   return devedit_reload({command => 'show', file => $dir});
 792  }
 793  else
 794  {
 795   # Display the form
 796
 797   my @stat = stat($physical);
 798   my $mode = $stat[2];
 799   my $gid  = $stat[5];
 800
 801   my $tpl = new Template;
 802   $tpl->read_file($config->{'templates'}->{'chprop'});
 803
 804   # Insert file properties into the template
 805
 806   $tpl->fillin("MODE_OCTAL",substr(sprintf("%04o",$mode),-4));
 807   $tpl->fillin("MODE_STRING",mode_string($mode));
 808   $tpl->fillin("GID",$gid);
 809
 810   if(my $group = getgrgid($gid))
 811   {
 812    $tpl->fillin("GROUP",encode_entities($group));
 813    $tpl->parse_if_block("group_detected",1);
 814   }
 815   else
 816   {
 817    $tpl->parse_if_block("group_detected",0);
 818   }
 819
 820   # Insert other information
 821
 822   $tpl->fillin("FILE",$virtual);
 823   $tpl->fillin("DIR",$dir);
 824   $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 825   $tpl->fillin("SCRIPT",$script);
 826
 827   my $output = header(-type => "text/html");
 828   $output   .= $tpl->get_template;
 829
 830   return \$output;
 831  }
 832 }
 833
 834 # exec_unlock()
 835 #
 836 # Remove a file from the list of used files and
 837 # return to directory view
 838 #
 839 # Params: 1. Reference to user input hash
 840 #         2. Reference to config hash
 841 #
 842 # Return: Output of the command (Scalar Reference)
 843
 844 sub exec_unlock($$)
 845 {
 846  my ($data,$config) = @_;
 847  my $virtual        = $data->{'virtual'};
 848  my $uselist        = $data->{'uselist'};
 849  my $dir            = upper_path($virtual);
 850
 851  return devedit_reload({command => 'show', file => $dir}) if($uselist->unused($virtual));
 852
 853  if($data->{'cgi'}->param('confirmed'))
 854  {
 855   file_unlock($uselist,$virtual);
 856   return devedit_reload({command => 'show', file => $dir});
 857  }
 858  else
 859  {
 860   my $tpl = new Template;
 861   $tpl->read_file($config->{'templates'}->{'confirm_unlock'});
 862
 863   $tpl->fillin("FILE",$virtual);
 864   $tpl->fillin("DIR",$dir);
 865   $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 866   $tpl->fillin("SCRIPT",$script);
 867
 868   my $output = header(-type => "text/html");
 869   $output   .= $tpl->get_template;
 870
 871   return \$output;
 872  }
 873 }
 874
 875 # exec_about()
 876 #
 877 # Display some information about Dev-Editor
 878 #
 879 # Params: 1. Reference to user input hash
 880 #         2. Reference to config hash
 881 #
 882 # Return: Output of the command (Scalar Reference)
 883
 884 sub exec_about($$)
 885 {
 886  my ($data,$config) = @_;
 887
 888  my $tpl = new Template;
 889  $tpl->read_file($config->{'templates'}->{'about'});
 890
 891  $tpl->fillin("SCRIPT",$script);
 892
 893  # Dev-Editor's version number
 894
 895  $tpl->fillin("VERSION",$data->{'version'});
 896
 897  # Some path information
 898
 899  $tpl->fillin("SCRIPT_PHYS",encode_entities($ENV{'SCRIPT_FILENAME'}));
 900  $tpl->fillin("CONFIG_PATH",encode_entities($data->{'configfile'}));
 901  $tpl->fillin("FILE_ROOT",  encode_entities($config->{'fileroot'}));
 902  $tpl->fillin("HTTP_ROOT",  encode_entities($config->{'httproot'}));
 903
 904  # Perl
 905
 906  $tpl->fillin("PERL_PROG",encode_entities($^X));
 907  $tpl->fillin("PERL_VER", sprintf("%vd",$^V));
 908
 909  # Information about the server
 910
 911  $tpl->fillin("HTTPD",encode_entities($ENV{'SERVER_SOFTWARE'}));
 912  $tpl->fillin("OS",   encode_entities($^O));
 913  $tpl->fillin("TIME", encode_entities(strftime($config->{'timeformat'},localtime)));
 914
 915  # Process information
 916
 917  $tpl->fillin("PID",$$);
 918
 919  # Check if the functions getpwuid() and getgrgid() are available
 920
 921  if($users)
 922  {
 923   # Dev-Editor is running on a system which allows users and groups
 924   # So we display the user and the group of our process
 925
 926   my $uid = POSIX::getuid;
 927   my $gid = POSIX::getgid;
 928
 929   $tpl->parse_if_block("users",1);
 930
 931   # ID's of user and group
 932
 933   $tpl->fillin("UID",$uid);
 934   $tpl->fillin("GID",$gid);
 935
 936   # Names of user and group
 937
 938   if(my $user = getpwuid($uid))
 939   {
 940    $tpl->fillin("USER",encode_entities($user));
 941    $tpl->parse_if_block("user_detected",1);
 942   }
 943   else
 944   {
 945    $tpl->parse_if_block("user_detected",0);
 946   }
 947
 948   if(my $group = getgrgid($gid))
 949   {
 950    $tpl->fillin("GROUP",encode_entities($group));
 951    $tpl->parse_if_block("group_detected",1);
 952   }
 953   else
 954   {
 955    $tpl->parse_if_block("group_detected",0);
 956   }
 957
 958   # Process umask
 959
 960   $tpl->fillin("UMASK",sprintf("%04o",umask));
 961  }
 962  else
 963  {
 964   $tpl->parse_if_block("users",0);
 965  }
 966
 967  my $output = header(-type => "text/html");
 968  $output   .= $tpl->get_template;
 969
 970  return \$output;
 971 }
 972
 973 # it's true, baby ;-)
 974
 975 1;
 976
 977 #
 978 ### End ###