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: 2004-12-20
  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 use HTML::Entities;
  25 use Output;
  26 use Template;
  27
  28 my $script = encode_entities($ENV{'SCRIPT_NAME'});
  29 my $users  = eval("getpwuid(0)") && eval("getgrgid(0)");
  30
  31 my %dispatch = ('show'       => \&exec_show,
  32                 'beginedit'  => \&exec_beginedit,
  33                 'canceledit' => \&exec_canceledit,
  34                 'endedit'    => \&exec_endedit,
  35                 'mkdir'      => \&exec_mkdir,
  36                 'mkfile'     => \&exec_mkfile,
  37                 'upload'     => \&exec_upload,
  38                 'copy'       => \&exec_copy,
  39                 'rename'     => \&exec_rename,
  40                 'remove'     => \&exec_remove,
  41                 'chprop'     => \&exec_chprop,
  42                 'unlock'     => \&exec_unlock,
  43                 'about'      => \&exec_about
  44                );
  45
  46 ### Export ###
  47
  48 use base qw(Exporter);
  49
  50 @EXPORT = qw(exec_command);
  51
  52 # exec_command()
  53 #
  54 # Execute the specified command
  55 #
  56 # Params: 1. Command to execute
  57 #         2. Reference to user input hash
  58 #         3. Reference to config hash
  59 #
  60 # Return: Output of the command (Scalar Reference)
  61
  62 sub exec_command($$$)
  63 {
  64  my ($command,$data,$config) = @_;
  65
  66  foreach(keys(%dispatch))
  67  {
  68   if(lc($_) eq lc($command))
  69   {
  70    my $output = &{$dispatch{$_}}($data,$config);
  71    return $output;
  72   }
  73  }
  74
  75  return error($config->{'errors'}->{'cmd_unknown'},'/',{COMMAND => encode_entities($command)});
  76 }
  77
  78 # exec_show()
  79 #
  80 # View a directory or a file
  81 #
  82 # Params: 1. Reference to user input hash
  83 #         2. Reference to config hash
  84 #
  85 # Return: Output of the command (Scalar Reference)
  86
  87 sub exec_show($$)
  88 {
  89  my ($data,$config) = @_;
  90  my $physical       = $data->{'physical'};
  91  my $virtual        = $data->{'virtual'};
  92  my $upper_path     = encode_entities(upper_path($virtual));
  93  my $uselist        = $data->{'uselist'};
  94
  95  my $tpl = new Template;
  96
  97  if(-d $physical)
  98  {
  99   # Create directory listing
 100
 101   return error($config->{'errors'}->{'no_dir_access'},$upper_path) unless(-r $physical && -x $physical);
 102
 103   my $direntries = dir_read($physical);
 104   return error($config->{'dir_read_fail'},$upper_path,{DIR => encode_entities($virtual)}) unless($direntries);
 105
 106   my $files = $direntries->{'files'};
 107   my $dirs  = $direntries->{'dirs'};
 108
 109   my $dir_writeable = -w $physical;
 110
 111   my $dirlist = "";
 112
 113   # Create the link to the upper directory
 114   # (only if we are not in the root directory)
 115
 116   unless($virtual eq "/")
 117   {
 118    my @stat  = stat($physical."/..");
 119
 120    my $udtpl = new Template;
 121    $udtpl->read_file($config->{'templates'}->{'dirlist_up'});
 122
 123    $udtpl->fillin("UPPER_DIR",$upper_path);
 124    $udtpl->fillin("DATE",encode_entities(strftime($config->{'timeformat'},localtime($stat[9]))));
 125
 126    $dirlist .= $udtpl->get_template;
 127   }
 128
 129   # Directories
 130
 131   foreach my $dir(@$dirs)
 132   {
 133    my $phys_path = $physical."/".$dir;
 134    my $virt_path = encode_entities($virtual.$dir."/");
 135
 136    my @stat      = stat($phys_path);
 137
 138    my $dtpl = new Template;
 139    $dtpl->read_file($config->{'templates'}->{'dirlist_dir'});
 140
 141    $dtpl->fillin("DIR",$virt_path);
 142    $dtpl->fillin("DIR_NAME",encode_entities($dir));
 143    $dtpl->fillin("DATE",encode_entities(strftime($config->{'timeformat'},localtime($stat[9]))));
 144    $dtpl->fillin("URL",equal_url(encode_entities($config->{'httproot'}),$virt_path));
 145
 146    $dtpl->parse_if_block("readable",-r $phys_path && -x $phys_path);
 147    $dtpl->parse_if_block("users",$users && -o $phys_path);
 148
 149    $dirlist .= $dtpl->get_template;
 150   }
 151
 152   # Files
 153
 154   foreach my $file(@$files)
 155   {
 156    my $phys_path = $physical."/".$file;
 157    my $virt_path = encode_entities($virtual.$file);
 158
 159    my @stat      = stat($phys_path);
 160    my $in_use    = $uselist->in_use($virtual.$file);
 161    my $too_large = $config->{'max_file_size'} && $stat[7] > $config->{'max_file_size'};
 162
 163    my $ftpl = new Template;
 164    $ftpl->read_file($config->{'templates'}->{'dirlist_file'});
 165
 166    $ftpl->fillin("FILE",$virt_path);
 167    $ftpl->fillin("FILE_NAME",encode_entities($file));
 168    $ftpl->fillin("SIZE",$stat[7]);
 169    $ftpl->fillin("DATE",encode_entities(strftime($config->{'timeformat'},localtime($stat[9]))));
 170    $ftpl->fillin("URL",equal_url(encode_entities($config->{'httproot'}),$virt_path));
 171
 172    $ftpl->parse_if_block("not_readable",not -r $phys_path);
 173    $ftpl->parse_if_block("binary",-B $phys_path);
 174    $ftpl->parse_if_block("readonly",not -w $phys_path);
 175
 176    $ftpl->parse_if_block("viewable",-r $phys_path && -T $phys_path && not $too_large);
 177    $ftpl->parse_if_block("editable",(-r $phys_path && -w $phys_path && -T $phys_path && not $too_large) && not $in_use);
 178
 179    $ftpl->parse_if_block("in_use",$in_use);
 180    $ftpl->parse_if_block("unused",not $in_use);
 181
 182    $ftpl->parse_if_block("too_large",$config->{'max_file_size'} && $stat[7] > $config->{'max_file_size'});
 183
 184    $ftpl->parse_if_block("users",$users && -o $phys_path);
 185
 186    $dirlist .= $ftpl->get_template;
 187   }
 188
 189   $tpl->read_file($config->{'templates'}->{'dirlist'});
 190
 191   $tpl->fillin("DIRLIST",$dirlist);
 192   $tpl->fillin("DIR",encode_entities($virtual));
 193   $tpl->fillin("SCRIPT",$script);
 194   $tpl->fillin("URL",encode_entities(equal_url($config->{'httproot'},$virtual)));
 195
 196   $tpl->parse_if_block("dir_writeable",$dir_writeable);
 197  }
 198  else
 199  {
 200   # View a file
 201
 202   return error($config->{'errors'}->{'no_view'},$upper_path) unless(-r $physical);
 203
 204   # Check on binary files
 205   # We have to do it in this way, or empty files
 206   # will be recognized as binary files
 207
 208   unless(-T $physical)
 209   {
 210    # Binary file
 211
 212    return error($config->{'errors'}->{'binary'},$upper_path);
 213   }
 214   else
 215   {
 216    # Text file
 217
 218    if($config->{'max_file_size'} && -s $physical > $config->{'max_file_size'})
 219    {
 220     return error($config->{'errors'}->{'file_too_large'},$upper_path,{SIZE => $config->{'max_file_size'}})
 221    }
 222    else
 223    {
 224     my $content =  file_read($physical);
 225     $$content   =~ s/\015\012|\012|\015/\n/g;
 226
 227     $tpl->read_file($config->{'templates'}->{'viewfile'});
 228
 229     $tpl->fillin("FILE",encode_entities($virtual));
 230     $tpl->fillin("DIR",$upper_path);
 231     $tpl->fillin("URL",encode_entities(equal_url($config->{'httproot'},$virtual)));
 232     $tpl->fillin("SCRIPT",$script);
 233
 234     $tpl->parse_if_block("editable",-w $physical && $uselist->unused($virtual));
 235
 236     $tpl->fillin("CONTENT",encode_entities($$content));
 237    }
 238   }
 239  }
 240
 241  my $output  = header(-type => "text/html");
 242  $output    .= $tpl->get_template;
 243
 244  return \$output;
 245 }
 246
 247 # exec_beginedit
 248 #
 249 # Lock a file and display a form to edit it
 250 #
 251 # Params: 1. Reference to user input hash
 252 #         2. Reference to config hash
 253 #
 254 # Return: Output of the command (Scalar Reference)
 255
 256 sub exec_beginedit($$)
 257 {
 258  my ($data,$config) = @_;
 259  my $physical       = $data->{'physical'};
 260  my $virtual        = $data->{'virtual'};
 261  my $dir            = upper_path($virtual);
 262  my $uselist        = $data->{'uselist'};
 263
 264  return error($config->{'errors'}->{'editdir'},$dir)                    if(-d $physical);
 265  return error($config->{'errors'}->{'in_use'}, $dir,{FILE => $virtual}) if($uselist->in_use($virtual));
 266  return error($config->{'errors'}->{'no_edit'},$dir)                    unless(-r $physical && -w $physical);
 267
 268  # Check on binary files
 269
 270  unless(-T $physical)
 271  {
 272   # Binary file
 273
 274   return error($config->{'errors'}->{'binary'},$dir);
 275  }
 276  else
 277  {
 278   if($config->{'max_file_size'} && -s $physical > $config->{'max_file_size'})
 279   {
 280    return error($config->{'errors'}->{'file_too_large'},$dir,{SIZE => $config->{'max_file_size'}})
 281   }
 282   else
 283   {
 284    # Text file
 285
 286    $uselist->add_file($virtual);
 287    $uselist->save;
 288
 289    my $content =  file_read($physical);
 290    $$content   =~ s/\015\012|\012|\015/\n/g;
 291
 292    my $tpl = new Template;
 293    $tpl->read_file($config->{'templates'}->{'editfile'});
 294
 295    $tpl->fillin("FILE",$virtual);
 296    $tpl->fillin("DIR",$dir);
 297    $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 298    $tpl->fillin("SCRIPT",$script);
 299    $tpl->fillin("CONTENT",encode_entities($$content));
 300
 301    my $output = header(-type => "text/html");
 302    $output   .= $tpl->get_template;
 303
 304    return \$output;
 305   }
 306  }
 307 }
 308
 309 # exec_canceledit()
 310 #
 311 # Abort file editing
 312 #
 313 # Params: 1. Reference to user input hash
 314 #         2. Reference to config hash
 315 #
 316 # Return: Output of the command (Scalar Reference)
 317
 318 sub exec_canceledit($$)
 319 {
 320  my ($data,$config) = @_;
 321  my $virtual        = $data->{'virtual'};
 322
 323  file_unlock($data->{'uselist'},$virtual);
 324  return devedit_reload({command => 'show', file => upper_path($virtual)});
 325 }
 326
 327 # exec_endedit()
 328 #
 329 # Save a file, unlock it and return to directory view
 330 #
 331 # Params: 1. Reference to user input hash
 332 #         2. Reference to config hash
 333 #
 334 # Return: Output of the command (Scalar Reference)
 335
 336 sub exec_endedit($$)
 337 {
 338  my ($data,$config) = @_;
 339  my $physical       = $data->{'physical'};
 340  my $virtual        = $data->{'virtual'};
 341  my $dir            = upper_path($virtual);
 342  my $content        = $data->{'cgi'}->param('filecontent');
 343  my $uselist        = $data->{'uselist'};
 344
 345  # We already unlock the file at the beginning of the subroutine,
 346  # because if we have to abort this routine, the file keeps locked.
 347  # No other user of Dev-Editor will access the file during this
 348  # routine because of the concept of File::UseList.
 349
 350  file_unlock($uselist,$virtual);
 351
 352  # Normalize newlines
 353
 354  $content =~ s/\015\012|\012|\015/\n/g;
 355
 356  if($data->{'cgi'}->param('encode_iso'))
 357  {
 358   # Encode all ISO-8859-1 special chars
 359
 360   $content = encode_entities($content,"\200-\377");
 361  }
 362
 363  if($data->{'cgi'}->param('saveas') && $data->{'new_physical'} ne '' && $data->{'new_virtual'} ne '')
 364  {
 365   # Create the new filename
 366
 367   $physical = $data->{'new_physical'};
 368   $virtual  = $data->{'new_virtual'};
 369
 370   # Check if someone else is editing the new file
 371
 372   return error($config->{'errors'}->{'in_use'},$dir,{FILE => $virtual}) if($uselist->in_use($virtual));
 373  }
 374
 375  return error($config->{'errors'}->{'editdir'},$dir)        if(-d $physical);
 376  return error($config->{'errors'}->{'no_edit'},$dir)        if(-e $physical && !(-r $physical && -w $physical));
 377  return error($config->{'errors'}->{'text_to_binary'},$dir) unless(-T $physical);
 378
 379  if(file_save($physical,\$content))
 380  {
 381   # Saving of the file was successful!
 382
 383   return devedit_reload({command => 'show', file => $dir});
 384  }
 385  else
 386  {
 387   return error($config->{'errors'}->{'edit_failed'},$dir,{FILE => $virtual});
 388  }
 389 }
 390
 391 # exec_mkfile()
 392 #
 393 # Create a file and return to directory view
 394 #
 395 # Params: 1. Reference to user input hash
 396 #         2. Reference to config hash
 397 #
 398 # Return: Output of the command (Scalar Reference)
 399
 400 sub exec_mkfile($$)
 401 {
 402  my ($data,$config) = @_;
 403  my $new_physical   = $data->{'new_physical'};
 404  my $new_virtual    = $data->{'new_virtual'};
 405  my $dir            = upper_path($new_virtual);
 406  $new_virtual       = encode_entities($new_virtual);
 407
 408  if($new_physical)
 409  {
 410   return error($config->{'errors'}->{'file_exists'},$dir,{FILE => $new_virtual}) if(-e $new_physical);
 411
 412   file_create($new_physical) or return error($config->{'errors'}->{'mkfile_failed'},$dir,{FILE => $new_virtual});
 413   return devedit_reload({command => 'show', file => $dir});
 414  }
 415  else
 416  {
 417   my $tpl = new Template;
 418   $tpl->read_file($config->{'templates'}->{'mkfile'});
 419
 420   $tpl->fillin("DIR","/");
 421   $tpl->fillin("SCRIPT",$script);
 422
 423   my $output = header(-type => "text/html");
 424   $output   .= $tpl->get_template;
 425
 426   return \$output;
 427  }
 428 }
 429
 430 # exec_mkdir()
 431 #
 432 # Create a directory and return to directory view
 433 #
 434 # Params: 1. Reference to user input hash
 435 #         2. Reference to config hash
 436 #
 437 # Return: Output of the command (Scalar Reference)
 438
 439 sub exec_mkdir($$)
 440 {
 441  my ($data,$config) = @_;
 442  my $new_physical   = $data->{'new_physical'};
 443  my $new_virtual    = $data->{'new_virtual'};
 444  my $dir            = upper_path($new_virtual);
 445  $new_virtual       = encode_entities($new_virtual);
 446
 447  return error($config->{'errors'}->{'file_exists'},$dir,{FILE => $new_virtual}) if(-e $new_physical);
 448
 449  if($new_physical)
 450  {
 451   mkdir($new_physical,0777) or return error($config->{'errors'}->{'mkdir_failed'},$dir,{DIR => $new_virtual});
 452   return devedit_reload({command => 'show', file => $dir});
 453  }
 454  else
 455  {
 456   my $tpl = new Template;
 457   $tpl->read_file($config->{'templates'}->{'mkdir'});
 458
 459   $tpl->fillin("DIR","/");
 460   $tpl->fillin("SCRIPT",$script);
 461
 462   my $output = header(-type => "text/html");
 463   $output   .= $tpl->get_template;
 464
 465   return \$output;
 466  }
 467 }
 468
 469 # exec_upload()
 470 #
 471 # Upload a file
 472 #
 473 # Params: 1. Reference to user input hash
 474 #         2. Reference to config hash
 475 #
 476 # Return: Output of the command (Scalar Reference)
 477
 478 sub exec_upload($$)
 479 {
 480  my ($data,$config) = @_;
 481  my $physical       = $data->{'physical'};
 482  my $virtual        = $data->{'virtual'};
 483  my $cgi            = $data->{'cgi'};
 484
 485  return error($config->{'errors'}->{'no_directory'},upper_path($virtual),{FILE => $virtual}) unless(-d $physical);
 486  return error($config->{'errors'}->{'dir_no_create'},$virtual,{DIR => $virtual})             unless(-w $physical);
 487
 488  if(my $uploaded_file = $cgi->param('uploaded_file'))
 489  {
 490   # Process file upload
 491
 492   my $filename  = file_name($uploaded_file);
 493   my $file_phys = $physical."/".$filename;
 494   my $file_virt = $virtual.$filename;
 495
 496   return error($config->{'errors'}->{'in_use'},$virtual,{FILE => $file_virt})      if($data->{'uselist'}->in_use($file_virt));
 497   return error($config->{'errors'}->{'file_exists'},$virtual,{FILE => $file_virt}) if(-e $file_phys && not $cgi->param('overwrite'));
 498
 499   my $ascii     = $cgi->param('ascii');
 500   my $handle    = $cgi->upload('uploaded_file');
 501
 502   # Read transferred file and write it to disk
 503
 504   read($handle, my $data, -s $handle);
 505   $data =~ s/\015\012|\012|\015/\n/g if($ascii); # Replace line separators if transferring in ASCII mode
 506   file_save($file_phys,\$data,not $ascii) or return error($config->{'errors'}->{'mkfile_failed'},$virtual,{FILE => $file_virt});
 507
 508   return devedit_reload({command => "show", file => $virtual});
 509  }
 510  else
 511  {
 512   my $tpl = new Template;
 513   $tpl->read_file($config->{'templates'}->{'upload'});
 514
 515   $tpl->fillin("DIR",$virtual);
 516   $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 517   $tpl->fillin("SCRIPT",$script);
 518
 519   my $output = header(-type => "text/html");
 520   $output   .= $tpl->get_template;
 521
 522   return \$output;
 523  }
 524 }
 525
 526 # exec_copy()
 527 #
 528 # Copy a file and return to directory view
 529 #
 530 # Params: 1. Reference to user input hash
 531 #         2. Reference to config hash
 532 #
 533 # Return: Output of the command (Scalar Reference)
 534
 535 sub exec_copy($$)
 536 {
 537  my ($data,$config) = @_;
 538  my $physical       = $data->{'physical'};
 539  my $virtual        = encode_entities($data->{'virtual'});
 540  my $dir            = upper_path($virtual);
 541  my $new_physical   = $data->{'new_physical'};
 542
 543  return error($config->{'errors'}->{'dircopy'},$dir) if(-d $physical);
 544  return error($config->{'errors'}->{'no_copy'},$dir) unless(-r $physical);
 545
 546  if($new_physical)
 547  {
 548   my $new_virtual = $data->{'new_virtual'};
 549   my $new_dir     = upper_path($new_virtual);
 550   $new_virtual    = encode_entities($new_virtual);
 551
 552   if(-e $new_physical)
 553   {
 554    return error($config->{'errors'}->{'exist_edited'},$new_dir,{FILE => $new_virtual}) if($data->{'uselist'}->in_use($data->{'new_virtual'}));
 555
 556    if(-d $new_physical)
 557    {
 558     return error($config->{'errors'}->{'dir_replace'},$new_dir);
 559    }
 560    elsif(not $data->{'cgi'}->param('confirmed'))
 561    {
 562     my $tpl = new Template;
 563     $tpl->read_file($config->{'templates'}->{'confirm_replace'});
 564
 565     $tpl->fillin("FILE",$virtual);
 566     $tpl->fillin("NEW_FILE",$new_virtual);
 567     $tpl->fillin("NEW_FILENAME",file_name($new_virtual));
 568     $tpl->fillin("NEW_DIR",$new_dir);
 569     $tpl->fillin("DIR",$dir);
 570
 571     $tpl->fillin("COMMAND","copy");
 572     $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 573     $tpl->fillin("SCRIPT",$script);
 574
 575     my $output = header(-type => "text/html");
 576     $output   .= $tpl->get_template;
 577
 578     return \$output;
 579    }
 580   }
 581
 582   copy($physical,$new_physical) or return error($config->{'errors'}->{'copy_failed'},$dir,{FILE => $virtual, NEW_FILE => $new_virtual});
 583   return devedit_reload({command => 'show', file => $new_dir});
 584  }
 585  else
 586  {
 587   my $tpl = new Template;
 588   $tpl->read_file($config->{'templates'}->{'copyfile'});
 589
 590   $tpl->fillin("FILE",$virtual);
 591   $tpl->fillin("DIR",$dir);
 592   $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 593   $tpl->fillin("SCRIPT",$script);
 594
 595   my $output = header(-type => "text/html");
 596   $output   .= $tpl->get_template;
 597
 598   return \$output;
 599  }
 600 }
 601
 602 # exec_rename()
 603 #
 604 # Rename/move a file and return to directory view
 605 #
 606 # Params: 1. Reference to user input hash
 607 #         2. Reference to config hash
 608 #
 609 # Return: Output of the command (Scalar Reference)
 610
 611 sub exec_rename($$)
 612 {
 613  my ($data,$config) = @_;
 614  my $physical       = $data->{'physical'};
 615  my $virtual        = $data->{'virtual'};
 616  my $dir            = upper_path($virtual);
 617  my $new_physical   = $data->{'new_physical'};
 618
 619  return error($config->{'errors'}->{'rename_root'},"/")                if($virtual eq "/");
 620  return error($config->{'errors'}->{'no_rename'},$dir)                 unless(-w upper_path($physical));
 621  return error($config->{'errors'}->{'in_use'},$dir,{FILE => $virtual}) if($data->{'uselist'}->in_use($virtual));
 622
 623  if($new_physical)
 624  {
 625   my $new_virtual = $data->{'new_virtual'};
 626   my $new_dir     = upper_path($new_virtual);
 627   $new_virtual    = encode_entities($new_virtual);
 628
 629   if(-e $new_physical)
 630   {
 631    return error($config->{'errors'}->{'exist_edited'},$new_dir,{FILE => $new_virtual}) if($data->{'uselist'}->in_use($data->{'new_virtual'}));
 632
 633    if(-d $new_physical)
 634    {
 635     return error($config->{'errors'}->{'dir_replace'},$new_dir);
 636    }
 637    elsif(not $data->{'cgi'}->param('confirmed'))
 638    {
 639     my $tpl = new Template;
 640     $tpl->read_file($config->{'templates'}->{'confirm_replace'});
 641
 642     $tpl->fillin("FILE",$virtual);
 643     $tpl->fillin("NEW_FILE",$new_virtual);
 644     $tpl->fillin("NEW_FILENAME",file_name($new_virtual));
 645     $tpl->fillin("NEW_DIR",$new_dir);
 646     $tpl->fillin("DIR",$dir);
 647
 648     $tpl->fillin("COMMAND","rename");
 649     $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 650     $tpl->fillin("SCRIPT",$script);
 651
 652     my $output = header(-type => "text/html");
 653     $output   .= $tpl->get_template;
 654
 655     return \$output;
 656    }
 657   }
 658
 659   rename($physical,$new_physical) or return error($config->{'errors'}->{'rename_failed'},$dir,{FILE => $virtual, NEW_FILE => $new_virtual});
 660   return devedit_reload({command => 'show', file => $new_dir});
 661  }
 662  else
 663  {
 664   my $tpl = new Template;
 665   $tpl->read_file($config->{'templates'}->{'renamefile'});
 666
 667   $tpl->fillin("FILE",$virtual);
 668   $tpl->fillin("DIR",$dir);
 669   $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 670   $tpl->fillin("SCRIPT",$script);
 671
 672   my $output = header(-type => "text/html");
 673   $output   .= $tpl->get_template;
 674
 675   return \$output;
 676  }
 677 }
 678
 679 # exec_remove()
 680 #
 681 # Remove a file or a directory and return to directory view
 682 #
 683 # Params: 1. Reference to user input hash
 684 #         2. Reference to config hash
 685 #
 686 # Return: Output of the command (Scalar Reference)
 687
 688 sub exec_remove($$)
 689 {
 690  my ($data,$config) = @_;
 691  my $physical       = $data->{'physical'};
 692  my $virtual        = $data->{'virtual'};
 693  my $dir            = upper_path($virtual);
 694
 695  return error($config->{'errors'}->{'remove_root'},"/") if($virtual eq "/");
 696  return error($config->{'errors'}->{'no_delete'},$dir)  unless(-w upper_path($physical));
 697
 698  if(-d $physical)
 699  {
 700   # Remove a directory
 701
 702   if($data->{'cgi'}->param('confirmed'))
 703   {
 704    rmtree($physical);
 705    return devedit_reload({command => 'show', file => $dir});
 706   }
 707   else
 708   {
 709    my $tpl = new Template;
 710    $tpl->read_file($config->{'templates'}->{'confirm_rmdir'});
 711
 712    $tpl->fillin("DIR",$virtual);
 713    $tpl->fillin("UPPER_DIR",$dir);
 714    $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 715    $tpl->fillin("SCRIPT",$script);
 716
 717    my $output = header(-type => "text/html");
 718    $output   .= $tpl->get_template;
 719
 720    return \$output;
 721   }
 722  }
 723  else
 724  {
 725   # Remove a file
 726
 727   return error($config->{'errors'}->{'in_use'},$dir,{FILE => $virtual}) if($data->{'uselist'}->in_use($virtual));
 728
 729   if($data->{'cgi'}->param('confirmed'))
 730   {
 731    unlink($physical) or return error($config->{'errors'}->{'delete_failed'},$dir,{FILE => $virtual});
 732    return devedit_reload({command => 'show', file => $dir});
 733   }
 734   else
 735   {
 736    my $tpl = new Template;
 737    $tpl->read_file($config->{'templates'}->{'confirm_rmfile'});
 738
 739    $tpl->fillin("FILE",$virtual);
 740    $tpl->fillin("DIR",$dir);
 741    $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 742    $tpl->fillin("SCRIPT",$script);
 743
 744    my $output = header(-type => "text/html");
 745    $output   .= $tpl->get_template;
 746
 747    return \$output;
 748   }
 749  }
 750 }
 751
 752 # exec_chprop()
 753 #
 754 # Change the mode and the group of a file or a directory
 755 #
 756 # Params: 1. Reference to user input hash
 757 #         2. Reference to config hash
 758 #
 759 # Return: Output of the command (Scalar Reference)
 760
 761 sub exec_chprop($$)
 762 {
 763  my ($data,$config) = @_;
 764  my $physical       = $data->{'physical'};
 765  my $virtual        = $data->{'virtual'};
 766  my $dir            = upper_path($virtual);
 767
 768  return error($config->{'errors'}->{'no_users'},$dir,{FILE => $virtual})  unless($users);
 769  return error($config->{'errors'}->{'chprop_root'},"/")                   if($virtual eq "/");
 770  return error($config->{'errors'}->{'not_owner'},$dir,{FILE => $virtual}) unless(-o $physical);
 771  return error($config->{'errors'}->{'in_use'},$dir,{FILE => $virtual})    if($data->{'uselist'}->in_use($virtual));
 772
 773  my $cgi   = $data->{'cgi'};
 774  my $mode  = $cgi->param('mode');
 775  my $group = $cgi->param('group');
 776
 777  if($mode || $group)
 778  {
 779   if($mode)
 780   {
 781    # Change the mode
 782
 783    chmod(oct($mode),$physical);
 784   }
 785
 786   if($group)
 787   {
 788    # Change the group using the `chgrp` system command
 789
 790    return error($config->{'errors'}->{'invalid_group'},$dir,{GROUP => encode_entities($group)}) unless($group =~ /^[a-z0-9_]+[a-z0-9_-]*$/i);
 791    system("chgrp",$group,$physical);
 792   }
 793
 794   return devedit_reload({command => 'show', file => $dir});
 795  }
 796  else
 797  {
 798   # Display the form
 799
 800   my @stat = stat($physical);
 801   my $mode = $stat[2];
 802   my $gid  = $stat[5];
 803
 804   my $tpl = new Template;
 805   $tpl->read_file($config->{'templates'}->{'chprop'});
 806
 807   # Insert file properties into the template
 808
 809   $tpl->fillin("MODE_OCTAL",substr(sprintf("%04o",$mode),-4));
 810   $tpl->fillin("MODE_STRING",mode_string($mode));
 811   $tpl->fillin("GID",$gid);
 812
 813   if(my $group = getgrgid($gid))
 814   {
 815    $tpl->fillin("GROUP",encode_entities($group));
 816    $tpl->parse_if_block("group_detected",1);
 817   }
 818   else
 819   {
 820    $tpl->parse_if_block("group_detected",0);
 821   }
 822
 823   # Insert other information
 824
 825   $tpl->fillin("FILE",$virtual);
 826   $tpl->fillin("DIR",$dir);
 827   $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 828   $tpl->fillin("SCRIPT",$script);
 829
 830   my $output = header(-type => "text/html");
 831   $output   .= $tpl->get_template;
 832
 833   return \$output;
 834  }
 835 }
 836
 837 # exec_unlock()
 838 #
 839 # Remove a file from the list of used files and
 840 # return to directory view
 841 #
 842 # Params: 1. Reference to user input hash
 843 #         2. Reference to config hash
 844 #
 845 # Return: Output of the command (Scalar Reference)
 846
 847 sub exec_unlock($$)
 848 {
 849  my ($data,$config) = @_;
 850  my $virtual        = $data->{'virtual'};
 851  my $uselist        = $data->{'uselist'};
 852  my $dir            = upper_path($virtual);
 853
 854  return devedit_reload({command => 'show', file => $dir}) if($uselist->unused($virtual));
 855
 856  if($data->{'cgi'}->param('confirmed'))
 857  {
 858   file_unlock($uselist,$virtual);
 859   return devedit_reload({command => 'show', file => $dir});
 860  }
 861  else
 862  {
 863   my $tpl = new Template;
 864   $tpl->read_file($config->{'templates'}->{'confirm_unlock'});
 865
 866   $tpl->fillin("FILE",$virtual);
 867   $tpl->fillin("DIR",$dir);
 868   $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 869   $tpl->fillin("SCRIPT",$script);
 870
 871   my $output = header(-type => "text/html");
 872   $output   .= $tpl->get_template;
 873
 874   return \$output;
 875  }
 876 }
 877
 878 # exec_about()
 879 #
 880 # Display some information about Dev-Editor
 881 #
 882 # Params: 1. Reference to user input hash
 883 #         2. Reference to config hash
 884 #
 885 # Return: Output of the command (Scalar Reference)
 886
 887 sub exec_about($$)
 888 {
 889  my ($data,$config) = @_;
 890
 891  my $tpl = new Template;
 892  $tpl->read_file($config->{'templates'}->{'about'});
 893
 894  $tpl->fillin("SCRIPT",$script);
 895
 896  # Dev-Editor's version number
 897
 898  $tpl->fillin("VERSION",$data->{'version'});
 899
 900  # Some path information
 901
 902  $tpl->fillin("SCRIPT_PHYS",encode_entities($ENV{'SCRIPT_FILENAME'}));
 903  $tpl->fillin("CONFIG_PATH",encode_entities($data->{'configfile'}));
 904  $tpl->fillin("FILE_ROOT",  encode_entities($config->{'fileroot'}));
 905  $tpl->fillin("HTTP_ROOT",  encode_entities($config->{'httproot'}));
 906
 907  # Perl
 908
 909  $tpl->fillin("PERL_PROG",encode_entities($^X));
 910  $tpl->fillin("PERL_VER", sprintf("%vd",$^V));
 911
 912  # Information about the server
 913
 914  $tpl->fillin("HTTPD",encode_entities($ENV{'SERVER_SOFTWARE'}));
 915  $tpl->fillin("OS",   encode_entities($^O));
 916  $tpl->fillin("TIME", encode_entities(strftime($config->{'timeformat'},localtime)));
 917
 918  # Process information
 919
 920  $tpl->fillin("PID",$$);
 921
 922  # Check if the functions getpwuid() and getgrgid() are available
 923
 924  if($users)
 925  {
 926   # Dev-Editor is running on a system which allows users and groups
 927   # So we display the user and the group of our process
 928
 929   my $uid = POSIX::getuid;
 930   my $gid = POSIX::getgid;
 931
 932   $tpl->parse_if_block("users",1);
 933
 934   # ID's of user and group
 935
 936   $tpl->fillin("UID",$uid);
 937   $tpl->fillin("GID",$gid);
 938
 939   # Names of user and group
 940
 941   if(my $user = getpwuid($uid))
 942   {
 943    $tpl->fillin("USER",encode_entities($user));
 944    $tpl->parse_if_block("user_detected",1);
 945   }
 946   else
 947   {
 948    $tpl->parse_if_block("user_detected",0);
 949   }
 950
 951   if(my $group = getgrgid($gid))
 952   {
 953    $tpl->fillin("GROUP",encode_entities($group));
 954    $tpl->parse_if_block("group_detected",1);
 955   }
 956   else
 957   {
 958    $tpl->parse_if_block("group_detected",0);
 959   }
 960
 961   # Process umask
 962
 963   $tpl->fillin("UMASK",sprintf("%04o",umask));
 964  }
 965  else
 966  {
 967   $tpl->parse_if_block("users",0);
 968  }
 969
 970  my $output = header(-type => "text/html");
 971  $output   .= $tpl->get_template;
 972
 973  return \$output;
 974 }
 975
 976 # it's true, baby ;-)
 977
 978 1;
 979
 980 #
 981 ### End ###