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: 2004-12-13
  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 use Data::Dumper;
  29
  30 my $script = $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($$$)
  65 {
  66  my ($command,$data,$config) = @_;
  67
  68  foreach(keys(%dispatch))
  69  {
  70   if(lc($_) eq lc($command))
  71   {
  72    my $output = &{$dispatch{$_}}($data,$config);
  73    return $output;
  74   }
  75  }
  76
  77  return error($config->{'errors'}->{'cmd_unknown'},'/',{COMMAND => $command});
  78 }
  79
  80 # exec_show()
  81 #
  82 # View a directory or a file
  83 #
  84 # Params: 1. Reference to user input hash
  85 #         2. Reference to config hash
  86 #
  87 # Return: Output of the command (Scalar Reference)
  88
  89 sub exec_show($$)
  90 {
  91  my ($data,$config) = @_;
  92  my $physical       = $data->{'physical'};
  93  my $virtual        = $data->{'virtual'};
  94  my $upper_path     = upper_path($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 => $virtual}) unless($direntries);
 107
 108   my $files = $direntries->{'files'};
 109   my $dirs  = $direntries->{'dirs'};
 110
 111   my $dir_writeable = -w $physical;
 112
 113   my $dirlist = "";
 114
 115   # Create the link to the upper directory
 116   # (only if we are not in the root directory)
 117
 118   unless($virtual eq "/")
 119   {
 120    my @stat  = stat($physical."/..");
 121
 122    my $udtpl = new Template;
 123    $udtpl->read_file($config->{'templates'}->{'dirlist_up'});
 124
 125    $udtpl->fillin("UPPER_DIR",encode_entities($upper_path));
 126    $udtpl->fillin("DATE",encode_entities(strftime($config->{'timeformat'},localtime($stat[9]))));
 127
 128    $dirlist .= $udtpl->get_template;
 129   }
 130
 131   # Directories
 132
 133   foreach my $dir(@$dirs)
 134   {
 135    my $phys_path = $physical."/".$dir;
 136    my $virt_path = encode_entities($virtual.$dir."/");
 137
 138    my @stat      = stat($phys_path);
 139
 140    my $dtpl = new Template;
 141    $dtpl->read_file($config->{'templates'}->{'dirlist_dir'});
 142
 143    $dtpl->fillin("DIR",$virt_path);
 144    $dtpl->fillin("DIR_NAME",$dir);
 145    $dtpl->fillin("DATE",encode_entities(strftime($config->{'timeformat'},localtime($stat[9]))));
 146    $dtpl->fillin("URL",equal_url($config->{'httproot'},$virt_path));
 147
 148    $dtpl->parse_if_block("readable",-r $phys_path && -x $phys_path);
 149    $dtpl->parse_if_block("users",$users && -o $phys_path);
 150
 151    $dirlist .= $dtpl->get_template;
 152   }
 153
 154   # Files
 155
 156   foreach my $file(@$files)
 157   {
 158    my $phys_path = $physical."/".$file;
 159    my $virt_path = encode_entities($virtual.$file);
 160
 161    my @stat      = stat($phys_path);
 162    my $in_use    = $uselist->in_use($virtual.$file);
 163    my $too_large = $config->{'max_file_size'} && $stat[7] > $config->{'max_file_size'};
 164
 165    my $ftpl = new Template;
 166    $ftpl->read_file($config->{'templates'}->{'dirlist_file'});
 167
 168    $ftpl->fillin("FILE",$virt_path);
 169    $ftpl->fillin("FILE_NAME",$file);
 170    $ftpl->fillin("SIZE",$stat[7]);
 171    $ftpl->fillin("DATE",encode_entities(strftime($config->{'timeformat'},localtime($stat[9]))));
 172    $ftpl->fillin("URL",equal_url($config->{'httproot'},$virt_path));
 173
 174    $ftpl->parse_if_block("not_readable",not -r $phys_path);
 175    $ftpl->parse_if_block("binary",-B $phys_path);
 176    $ftpl->parse_if_block("readonly",not -w $phys_path);
 177
 178    $ftpl->parse_if_block("viewable",-r $phys_path && -T $phys_path && not $too_large);
 179    $ftpl->parse_if_block("editable",(-r $phys_path && -w $phys_path && -T $phys_path && not $too_large) && not $in_use);
 180
 181    $ftpl->parse_if_block("in_use",$in_use);
 182    $ftpl->parse_if_block("unused",not $in_use);
 183
 184    $ftpl->parse_if_block("too_large",$config->{'max_file_size'} && $stat[7] > $config->{'max_file_size'});
 185
 186    $ftpl->parse_if_block("users",$users && -o $phys_path);
 187
 188    $dirlist .= $ftpl->get_template;
 189   }
 190
 191   $tpl->read_file($config->{'templates'}->{'dirlist'});
 192
 193   $tpl->fillin("DIRLIST",$dirlist);
 194   $tpl->fillin("DIR",$virtual);
 195   $tpl->fillin("SCRIPT",$script);
 196   $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 197
 198   $tpl->parse_if_block("dir_writeable",$dir_writeable);
 199  }
 200  else
 201  {
 202   # View a file
 203
 204   return error($config->{'errors'}->{'no_view'},$upper_path) unless(-r $physical);
 205
 206   # Check on binary files
 207   # We have to do it in this way, or empty files
 208   # will be recognized as binary files
 209
 210   unless(-T $physical)
 211   {
 212    # Binary file
 213
 214    return error($config->{'errors'}->{'binary'},$upper_path);
 215   }
 216   else
 217   {
 218    # Text file
 219
 220    if($config->{'max_file_size'} && -s $physical > $config->{'max_file_size'})
 221    {
 222     return error($config->{'errors'}->{'file_too_large'},$upper_path,{SIZE => $config->{'max_file_size'}})
 223    }
 224    else
 225    {
 226     my $content =  file_read($physical);
 227     $$content   =~ s/\015\012|\012|\015/\n/g;
 228
 229     $tpl->read_file($config->{'templates'}->{'viewfile'});
 230
 231     $tpl->fillin("FILE",$virtual);
 232     $tpl->fillin("DIR",$upper_path);
 233     $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 234     $tpl->fillin("SCRIPT",$script);
 235
 236     $tpl->parse_if_block("editable",-w $physical && $uselist->unused($virtual));
 237
 238     $tpl->fillin("CONTENT",encode_entities($$content));
 239    }
 240   }
 241  }
 242
 243  my $output  = header(-type => "text/html");
 244  $output    .= $tpl->get_template;
 245
 246  return \$output;
 247 }
 248
 249 # exec_beginedit
 250 #
 251 # Lock a file and display a form to edit it
 252 #
 253 # Params: 1. Reference to user input hash
 254 #         2. Reference to config hash
 255 #
 256 # Return: Output of the command (Scalar Reference)
 257
 258 sub exec_beginedit($$)
 259 {
 260  my ($data,$config) = @_;
 261  my $physical       = $data->{'physical'};
 262  my $virtual        = $data->{'virtual'};
 263  my $dir            = upper_path($virtual);
 264  my $uselist        = $data->{'uselist'};
 265
 266  return error($config->{'errors'}->{'editdir'},$dir)                    if(-d $physical);
 267  return error($config->{'errors'}->{'in_use'}, $dir,{FILE => $virtual}) if($uselist->in_use($virtual));
 268  return error($config->{'errors'}->{'no_edit'},$dir)                    unless(-r $physical && -w $physical);
 269
 270  # Check on binary files
 271
 272  unless(-T $physical)
 273  {
 274   # Binary file
 275
 276   return error($config->{'errors'}->{'binary'},$dir);
 277  }
 278  else
 279  {
 280   if($config->{'max_file_size'} && -s $physical > $config->{'max_file_size'})
 281   {
 282    return error($config->{'errors'}->{'file_too_large'},$dir,{SIZE => $config->{'max_file_size'}})
 283   }
 284   else
 285   {
 286    # Text file
 287
 288    $uselist->add_file($virtual);
 289    $uselist->save;
 290
 291    my $content =  file_read($physical);
 292    $$content   =~ s/\015\012|\012|\015/\n/g;
 293
 294    my $tpl = new Template;
 295    $tpl->read_file($config->{'templates'}->{'editfile'});
 296
 297    $tpl->fillin("FILE",$virtual);
 298    $tpl->fillin("DIR",$dir);
 299    $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 300    $tpl->fillin("SCRIPT",$script);
 301    $tpl->fillin("CONTENT",encode_entities($$content));
 302
 303    my $output = header(-type => "text/html");
 304    $output   .= $tpl->get_template;
 305
 306    return \$output;
 307   }
 308  }
 309 }
 310
 311 # exec_canceledit()
 312 #
 313 # Abort file editing
 314 #
 315 # Params: 1. Reference to user input hash
 316 #         2. Reference to config hash
 317 #
 318 # Return: Output of the command (Scalar Reference)
 319
 320 sub exec_canceledit($$)
 321 {
 322  my ($data,$config) = @_;
 323  my $virtual        = $data->{'virtual'};
 324
 325  file_unlock($data->{'uselist'},$virtual);
 326  return devedit_reload({command => 'show', file => upper_path($virtual)});
 327 }
 328
 329 # exec_endedit()
 330 #
 331 # Save a file, unlock it and return to directory view
 332 #
 333 # Params: 1. Reference to user input hash
 334 #         2. Reference to config hash
 335 #
 336 # Return: Output of the command (Scalar Reference)
 337
 338 sub exec_endedit($$)
 339 {
 340  my ($data,$config) = @_;
 341  my $physical       = $data->{'physical'};
 342  my $virtual        = $data->{'virtual'};
 343  my $dir            = upper_path($virtual);
 344  my $content        = $data->{'cgi'}->param('filecontent');
 345  my $uselist        = $data->{'uselist'};
 346
 347  # We already unlock the file at the beginning of the subroutine,
 348  # because if we have to abort this routine, the file keeps locked.
 349  # No other user of Dev-Editor will access the file during this
 350  # routine because of the concept of File::UseList.
 351
 352  file_unlock($uselist,$virtual);
 353
 354  # Normalize newlines
 355
 356  $content =~ s/\015\012|\012|\015/\n/g;
 357
 358  if($data->{'cgi'}->param('encode_iso'))
 359  {
 360   # Encode all ISO-8859-1 special chars
 361
 362   $content = encode_entities($content,"\200-\377");
 363  }
 364
 365  if($data->{'cgi'}->param('saveas') && $data->{'new_physical'} ne '' && $data->{'new_virtual'} ne '')
 366  {
 367   # Create the new filename
 368
 369   $physical = $data->{'new_physical'};
 370   $virtual  = $data->{'new_virtual'};
 371
 372   # Check if someone else is editing the new file
 373
 374   return error($config->{'errors'}->{'in_use'},$dir,{FILE => $virtual}) if($uselist->in_use($virtual));
 375  }
 376
 377  return error($config->{'errors'}->{'editdir'},$dir)        if(-d $physical);
 378  return error($config->{'errors'}->{'no_edit'},$dir)        if(-e $physical && !(-r $physical && -w $physical));
 379  return error($config->{'errors'}->{'text_to_binary'},$dir) unless(-T $physical);
 380
 381  if(file_save($physical,\$content))
 382  {
 383   # Saving of the file was successful!
 384
 385   return devedit_reload({command => 'show', file => $dir});
 386  }
 387  else
 388  {
 389   return error($config->{'errors'}->{'edit_failed'},$dir,{FILE => $virtual});
 390  }
 391 }
 392
 393 # exec_mkfile()
 394 #
 395 # Create a file and return to directory view
 396 #
 397 # Params: 1. Reference to user input hash
 398 #         2. Reference to config hash
 399 #
 400 # Return: Output of the command (Scalar Reference)
 401
 402 sub exec_mkfile($$)
 403 {
 404  my ($data,$config) = @_;
 405  my $new_physical   = $data->{'new_physical'};
 406  my $new_virtual    = $data->{'new_virtual'};
 407  my $dir            = upper_path($new_virtual);
 408  $new_virtual       = encode_entities($new_virtual);
 409
 410  if($new_physical)
 411  {
 412   return error($config->{'errors'}->{'file_exists'},$dir,{FILE => $new_virtual}) if(-e $new_physical);
 413
 414   file_create($new_physical) or return error($config->{'errors'}->{'mkfile_failed'},$dir,{FILE => $new_virtual});
 415   return devedit_reload({command => 'show', file => $dir});
 416  }
 417  else
 418  {
 419   my $tpl = new Template;
 420   $tpl->read_file($config->{'templates'}->{'mkfile'});
 421
 422   $tpl->fillin("DIR","/");
 423   $tpl->fillin("SCRIPT",$script);
 424
 425   my $output = header(-type => "text/html");
 426   $output   .= $tpl->get_template;
 427
 428   return \$output;
 429  }
 430 }
 431
 432 # exec_mkdir()
 433 #
 434 # Create a directory and return to directory view
 435 #
 436 # Params: 1. Reference to user input hash
 437 #         2. Reference to config hash
 438 #
 439 # Return: Output of the command (Scalar Reference)
 440
 441 sub exec_mkdir($$)
 442 {
 443  my ($data,$config) = @_;
 444  my $new_physical   = $data->{'new_physical'};
 445  my $new_virtual    = $data->{'new_virtual'};
 446  my $dir            = upper_path($new_virtual);
 447  $new_virtual       = encode_entities($new_virtual);
 448
 449  return error($config->{'errors'}->{'file_exists'},$dir,{FILE => $new_virtual}) if(-e $new_physical);
 450
 451  if($new_physical)
 452  {
 453   mkdir($new_physical,0777) or return error($config->{'errors'}->{'mkdir_failed'},$dir,{DIR => $new_virtual});
 454   return devedit_reload({command => 'show', file => $dir});
 455  }
 456  else
 457  {
 458   my $tpl = new Template;
 459   $tpl->read_file($config->{'templates'}->{'mkdir'});
 460
 461   $tpl->fillin("DIR","/");
 462   $tpl->fillin("SCRIPT",$script);
 463
 464   my $output = header(-type => "text/html");
 465   $output   .= $tpl->get_template;
 466
 467   return \$output;
 468  }
 469 }
 470
 471 # exec_upload()
 472 #
 473 # Upload a file
 474 #
 475 # Params: 1. Reference to user input hash
 476 #         2. Reference to config hash
 477 #
 478 # Return: Output of the command (Scalar Reference)
 479
 480 sub exec_upload($$)
 481 {
 482  my ($data,$config) = @_;
 483  my $physical       = $data->{'physical'};
 484  my $virtual        = $data->{'virtual'};
 485  my $cgi            = $data->{'cgi'};
 486
 487  return error($config->{'errors'}->{'no_directory'},upper_path($virtual),{FILE => $virtual}) unless(-d $physical);
 488  return error($config->{'errors'}->{'dir_no_create'},$virtual,{DIR => $virtual})             unless(-w $physical);
 489
 490  if(my $uploaded_file = $cgi->param('uploaded_file'))
 491  {
 492   # Process file upload
 493
 494   my $filename  = file_name($uploaded_file);
 495   my $file_phys = $physical."/".$filename;
 496   my $file_virt = $virtual.$filename;
 497
 498   return error($config->{'errors'}->{'in_use'},$virtual,{FILE => $file_virt})      if($data->{'uselist'}->in_use($file_virt));
 499   return error($config->{'errors'}->{'file_exists'},$virtual,{FILE => $file_virt}) if(-e $file_phys && not $cgi->param('overwrite'));
 500
 501   my $ascii     = $cgi->param('ascii');
 502   my $handle    = $cgi->upload('uploaded_file');
 503
 504   local *FILE;
 505
 506   open(FILE,">".$file_phys) or return error($config->{'errors'}->{'mkfile_failed'},$virtual,{FILE => $file_virt});
 507   binmode(FILE) unless($ascii);
 508
 509   # Read transferred file and write it to disk
 510
 511   read($handle, my $data, -s $handle);
 512   $data =~ s/\015\012|\012|\015/\n/g if($ascii); # Replace line separators if transferring in ASCII mode
 513   print FILE $data;
 514
 515   close(FILE);
 516
 517   return devedit_reload({command => "show", file => $virtual});
 518  }
 519  else
 520  {
 521   my $tpl = new Template;
 522   $tpl->read_file($config->{'templates'}->{'upload'});
 523
 524   $tpl->fillin("DIR",$virtual);
 525   $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 526   $tpl->fillin("SCRIPT",$script);
 527
 528   my $output = header(-type => "text/html");
 529   $output   .= $tpl->get_template;
 530
 531   return \$output;
 532  }
 533 }
 534
 535 # exec_copy()
 536 #
 537 # Copy a file and return to directory view
 538 #
 539 # Params: 1. Reference to user input hash
 540 #         2. Reference to config hash
 541 #
 542 # Return: Output of the command (Scalar Reference)
 543
 544 sub exec_copy($$)
 545 {
 546  my ($data,$config) = @_;
 547  my $physical       = $data->{'physical'};
 548  my $virtual        = encode_entities($data->{'virtual'});
 549  my $dir            = upper_path($virtual);
 550  my $new_physical   = $data->{'new_physical'};
 551
 552  return error($config->{'errors'}->{'dircopy'},upper_path($virtual)) if(-d $physical);
 553  return error($config->{'errors'}->{'no_copy'},upper_path($virtual)) unless(-r $physical);
 554
 555  if($new_physical)
 556  {
 557   my $new_virtual = $data->{'new_virtual'};
 558   my $new_dir     = upper_path($new_virtual);
 559   $new_virtual    = encode_entities($new_virtual);
 560
 561   if(-e $new_physical)
 562   {
 563    return error($config->{'errors'}->{'exist_edited'},$new_dir,{FILE => $new_virtual}) if($data->{'uselist'}->in_use($data->{'new_virtual'}));
 564
 565    if(-d $new_physical)
 566    {
 567     return error($config->{'errors'}->{'dir_replace'},$new_dir);
 568    }
 569    elsif(not $data->{'cgi'}->param('confirmed'))
 570    {
 571     my $tpl = new Template;
 572     $tpl->read_file($config->{'templates'}->{'confirm_replace'});
 573
 574     $tpl->fillin("FILE",$virtual);
 575     $tpl->fillin("NEW_FILE",$new_virtual);
 576     $tpl->fillin("NEW_FILENAME",file_name($new_virtual));
 577     $tpl->fillin("NEW_DIR",$new_dir);
 578     $tpl->fillin("DIR",$dir);
 579
 580     $tpl->fillin("COMMAND","copy");
 581     $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 582     $tpl->fillin("SCRIPT",$script);
 583
 584     my $output = header(-type => "text/html");
 585     $output   .= $tpl->get_template;
 586
 587     return \$output;
 588    }
 589   }
 590
 591   copy($physical,$new_physical) or return error($config->{'errors'}->{'copy_failed'},$dir,{FILE => $virtual, NEW_FILE => $new_virtual});
 592   return devedit_reload({command => 'show', file => $new_dir});
 593  }
 594  else
 595  {
 596   my $tpl = new Template;
 597   $tpl->read_file($config->{'templates'}->{'copyfile'});
 598
 599   $tpl->fillin("FILE",$virtual);
 600   $tpl->fillin("DIR",$dir);
 601   $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 602   $tpl->fillin("SCRIPT",$script);
 603
 604   my $output = header(-type => "text/html");
 605   $output   .= $tpl->get_template;
 606
 607   return \$output;
 608  }
 609 }
 610
 611 # exec_rename()
 612 #
 613 # Rename/move a file and return to directory view
 614 #
 615 # Params: 1. Reference to user input hash
 616 #         2. Reference to config hash
 617 #
 618 # Return: Output of the command (Scalar Reference)
 619
 620 sub exec_rename($$)
 621 {
 622  my ($data,$config) = @_;
 623  my $physical       = $data->{'physical'};
 624  my $virtual        = $data->{'virtual'};
 625  my $dir            = upper_path($virtual);
 626  my $new_physical   = $data->{'new_physical'};
 627
 628  return error($config->{'errors'}->{'rename_root'},"/") if($virtual eq "/");
 629  return error($config->{'errors'}->{'no_rename'},$dir) unless(-w upper_path($physical));
 630  return error($config->{'errors'}->{'in_use'},$dir,{FILE => $virtual}) if($data->{'uselist'}->in_use($virtual));
 631
 632  if($new_physical)
 633  {
 634   my $new_virtual = $data->{'new_virtual'};
 635   my $new_dir     = upper_path($new_virtual);
 636   $new_virtual    = encode_entities($new_virtual);
 637
 638   if(-e $new_physical)
 639   {
 640    return error($config->{'errors'}->{'exist_edited'},$new_dir,{FILE => $new_virtual}) if($data->{'uselist'}->in_use($data->{'new_virtual'}));
 641
 642    if(-d $new_physical)
 643    {
 644     return error($config->{'errors'}->{'dir_replace'},$new_dir);
 645    }
 646    elsif(not $data->{'cgi'}->param('confirmed'))
 647    {
 648     my $tpl = new Template;
 649     $tpl->read_file($config->{'templates'}->{'confirm_replace'});
 650
 651     $tpl->fillin("FILE",$virtual);
 652     $tpl->fillin("NEW_FILE",$new_virtual);
 653     $tpl->fillin("NEW_FILENAME",file_name($new_virtual));
 654     $tpl->fillin("NEW_DIR",$new_dir);
 655     $tpl->fillin("DIR",$dir);
 656
 657     $tpl->fillin("COMMAND","rename");
 658     $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 659     $tpl->fillin("SCRIPT",$script);
 660
 661     my $output = header(-type => "text/html");
 662     $output   .= $tpl->get_template;
 663
 664     return \$output;
 665    }
 666   }
 667
 668   rename($physical,$new_physical) or return error($config->{'errors'}->{'rename_failed'},$dir,{FILE => $virtual, NEW_FILE => $new_virtual});
 669   return devedit_reload({command => 'show', file => $new_dir});
 670  }
 671  else
 672  {
 673   my $tpl = new Template;
 674   $tpl->read_file($config->{'templates'}->{'renamefile'});
 675
 676   $tpl->fillin("FILE",$virtual);
 677   $tpl->fillin("DIR",$dir);
 678   $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 679   $tpl->fillin("SCRIPT",$script);
 680
 681   my $output = header(-type => "text/html");
 682   $output   .= $tpl->get_template;
 683
 684   return \$output;
 685  }
 686 }
 687
 688 # exec_remove()
 689 #
 690 # Remove a file or a directory and return to directory view
 691 #
 692 # Params: 1. Reference to user input hash
 693 #         2. Reference to config hash
 694 #
 695 # Return: Output of the command (Scalar Reference)
 696
 697 sub exec_remove($$)
 698 {
 699  my ($data,$config) = @_;
 700  my $physical       = $data->{'physical'};
 701  my $virtual        = $data->{'virtual'};
 702  my $dir            = upper_path($virtual);
 703
 704  return error($config->{'errors'}->{'remove_root'},"/") if($virtual eq "/");
 705  return error($config->{'errors'}->{'no_delete'},$dir)  unless(-w upper_path($physical));
 706
 707  if(-d $physical)
 708  {
 709   # Remove a directory
 710
 711   if($data->{'cgi'}->param('confirmed'))
 712   {
 713    rmtree($physical);
 714    return devedit_reload({command => 'show', file => $dir});
 715   }
 716   else
 717   {
 718    my $tpl = new Template;
 719    $tpl->read_file($config->{'templates'}->{'confirm_rmdir'});
 720
 721    $tpl->fillin("DIR",$virtual);
 722    $tpl->fillin("UPPER_DIR",$dir);
 723    $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 724    $tpl->fillin("SCRIPT",$script);
 725
 726    my $output = header(-type => "text/html");
 727    $output   .= $tpl->get_template;
 728
 729    return \$output;
 730   }
 731  }
 732  else
 733  {
 734   # Remove a file
 735
 736   return error($config->{'errors'}->{'in_use'},$dir,{FILE => $virtual}) if($data->{'uselist'}->in_use($virtual));
 737
 738   if($data->{'cgi'}->param('confirmed'))
 739   {
 740    unlink($physical) or return error($config->{'errors'}->{'delete_failed'},$dir,{FILE => $virtual});
 741    return devedit_reload({command => 'show', file => $dir});
 742   }
 743   else
 744   {
 745    my $tpl = new Template;
 746    $tpl->read_file($config->{'templates'}->{'confirm_rmfile'});
 747
 748    $tpl->fillin("FILE",$virtual);
 749    $tpl->fillin("DIR",$dir);
 750    $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 751    $tpl->fillin("SCRIPT",$script);
 752
 753    my $output = header(-type => "text/html");
 754    $output   .= $tpl->get_template;
 755
 756    return \$output;
 757   }
 758  }
 759 }
 760
 761 # exec_chprop()
 762 #
 763 # Change the mode and the group of a file or a directory
 764 #
 765 # Params: 1. Reference to user input hash
 766 #         2. Reference to config hash
 767 #
 768 # Return: Output of the command (Scalar Reference)
 769
 770 sub exec_chprop($$)
 771 {
 772  my ($data,$config) = @_;
 773  my $physical       = $data->{'physical'};
 774  my $virtual        = $data->{'virtual'};
 775  my $dir            = upper_path($virtual);
 776
 777  return error($config->{'errors'}->{'no_users'},$dir,{FILE => $virtual})  unless($users);
 778  return error($config->{'errors'}->{'chprop_root'},"/")                   if($virtual eq "/");
 779  return error($config->{'errors'}->{'not_owner'},$dir,{FILE => $virtual}) unless(-o $physical);
 780  return error($config->{'errors'}->{'in_use'},$dir,{FILE => $virtual})    if($data->{'uselist'}->in_use($virtual));
 781
 782  my $cgi   = $data->{'cgi'};
 783  my $mode  = $cgi->param('mode');
 784  my $group = $cgi->param('group');
 785
 786  if($mode || $group)
 787  {
 788   if($mode)
 789   {
 790    # Change the mode
 791
 792    chmod(oct($mode),$physical);
 793   }
 794
 795   if($group)
 796   {
 797    # Change the group using the `chgrp` system command
 798
 799    return error($config->{'errors'}->{'invalid_group'},$dir,{GROUP => encode_entities($group)}) unless($group =~ /^[a-z0-9_]+[a-z0-9_-]*$/i);
 800    system("chgrp",$group,$physical);
 801   }
 802
 803   return devedit_reload({command => 'show', file => $dir});
 804  }
 805  else
 806  {
 807   # Display the form
 808
 809   my @stat = stat($physical);
 810   my $mode = $stat[2];
 811   my $gid  = $stat[5];
 812
 813   my $tpl = new Template;
 814   $tpl->read_file($config->{'templates'}->{'chprop'});
 815
 816   # Insert file properties into the template
 817
 818   $tpl->fillin("MODE_OCTAL",substr(sprintf("%04o",$mode),-4));
 819   $tpl->fillin("MODE_STRING",mode_string($mode));
 820   $tpl->fillin("GID",$gid);
 821
 822   if(my $group = getgrgid($gid))
 823   {
 824    $tpl->fillin("GROUP",encode_entities($group));
 825    $tpl->parse_if_block("group_detected",1);
 826   }
 827   else
 828   {
 829    $tpl->parse_if_block("group_detected",0);
 830   }
 831
 832   # Insert other information
 833
 834   $tpl->fillin("FILE",$virtual);
 835   $tpl->fillin("DIR",$dir);
 836   $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 837   $tpl->fillin("SCRIPT",$script);
 838
 839   my $output = header(-type => "text/html");
 840   $output   .= $tpl->get_template;
 841
 842   return \$output;
 843  }
 844 }
 845
 846 # exec_unlock()
 847 #
 848 # Remove a file from the list of used files and
 849 # return to directory view
 850 #
 851 # Params: 1. Reference to user input hash
 852 #         2. Reference to config hash
 853 #
 854 # Return: Output of the command (Scalar Reference)
 855
 856 sub exec_unlock($$)
 857 {
 858  my ($data,$config) = @_;
 859  my $virtual        = $data->{'virtual'};
 860  my $uselist        = $data->{'uselist'};
 861  my $dir            = upper_path($virtual);
 862
 863  return devedit_reload({command => 'show', file => $dir}) if($uselist->unused($virtual));
 864
 865  if($data->{'cgi'}->param('confirmed'))
 866  {
 867   file_unlock($uselist,$virtual);
 868   return devedit_reload({command => 'show', file => $dir});
 869  }
 870  else
 871  {
 872   my $tpl = new Template;
 873   $tpl->read_file($config->{'templates'}->{'confirm_unlock'});
 874
 875   $tpl->fillin("FILE",$virtual);
 876   $tpl->fillin("DIR",$dir);
 877   $tpl->fillin("URL",equal_url($config->{'httproot'},$virtual));
 878   $tpl->fillin("SCRIPT",$script);
 879
 880   my $output = header(-type => "text/html");
 881   $output   .= $tpl->get_template;
 882
 883   return \$output;
 884  }
 885 }
 886
 887 # exec_about()
 888 #
 889 # Display some information about Dev-Editor
 890 #
 891 # Params: 1. Reference to user input hash
 892 #         2. Reference to config hash
 893 #
 894 # Return: Output of the command (Scalar Reference)
 895
 896 sub exec_about($$)
 897 {
 898  my ($data,$config) = @_;
 899
 900  my $tpl = new Template;
 901  $tpl->read_file($config->{'templates'}->{'about'});
 902
 903  $tpl->fillin("SCRIPT",$script);
 904
 905  # Dev-Editor's version number
 906
 907  $tpl->fillin("VERSION",$data->{'version'});
 908
 909  # Some path information
 910
 911  $tpl->fillin("SCRIPT_PHYS",encode_entities($ENV{'SCRIPT_FILENAME'}));
 912  $tpl->fillin("CONFIG_PATH",encode_entities($data->{'configfile'}));
 913  $tpl->fillin("FILE_ROOT",  encode_entities($config->{'fileroot'}));
 914  $tpl->fillin("HTTP_ROOT",  encode_entities($config->{'httproot'}));
 915
 916  # Perl
 917
 918  $tpl->fillin("PERL_PROG",encode_entities($^X));
 919  $tpl->fillin("PERL_VER",sprintf("%vd",$^V));
 920
 921  # Information about the server
 922
 923  $tpl->fillin("HTTPD",encode_entities($ENV{'SERVER_SOFTWARE'}));
 924  $tpl->fillin("OS",$^O);
 925  $tpl->fillin("TIME",encode_entities(strftime($config->{'timeformat'},localtime)));
 926
 927  # Process information
 928
 929  $tpl->fillin("PID",$$);
 930
 931  # Check if the functions getpwuid() and getgrgid() are available
 932
 933  if($users)
 934  {
 935   # Dev-Editor is running on a system which allows users and groups
 936   # So we display the user and the group of our process
 937
 938   my $uid = POSIX::getuid;
 939   my $gid = POSIX::getgid;
 940
 941   $tpl->parse_if_block("users",1);
 942
 943   # ID's of user and group
 944
 945   $tpl->fillin("UID",$uid);
 946   $tpl->fillin("GID",$gid);
 947
 948   # Names of user and group
 949
 950   if(my $user = getpwuid($uid))
 951   {
 952    $tpl->fillin("USER",encode_entities($user));
 953    $tpl->parse_if_block("user_detected",1);
 954   }
 955   else
 956   {
 957    $tpl->parse_if_block("user_detected",0);
 958   }
 959
 960   if(my $group = getgrgid($gid))
 961   {
 962    $tpl->fillin("GROUP",encode_entities($group));
 963    $tpl->parse_if_block("group_detected",1);
 964   }
 965   else
 966   {
 967    $tpl->parse_if_block("group_detected",0);
 968   }
 969
 970   # Process umask
 971
 972   $tpl->fillin("UMASK",sprintf("%04o",umask));
 973  }
 974  else
 975  {
 976   $tpl->parse_if_block("users",0);
 977  }
 978
 979  my $output = header(-type => "text/html");
 980  $output   .= $tpl->get_template;
 981
 982  return \$output;
 983 }
 984
 985 # it's true, baby ;-)
 986
 987 1;
 988
 989 #
 990 ### End ###