modules/Command.pm

   1 package Command;
   2
   3 #
   4 # Dev-Editor - Module Command
   5 #
   6 # Execute Dev-Editor's commands
   7 #
   8 # Author:        Patrick Canterino <patrick@patshaping.de>
   9 # Last modified: 2005-05-29
  10 #
  11
  12 use strict;
  13
  14 use vars qw(@EXPORT);
  15
  16 use Fcntl;
  17 use File::Access;
  18 use File::Copy;
  19 use File::Path;
  20
  21 use Digest::MD5 qw(md5_hex);
  22 use POSIX qw(strftime);
  23 use Tool;
  24
  25 use CGI qw(header
  26            escape);
  27
  28 use Output;
  29 use Template;
  30
  31 my $script = encode_html($ENV{'SCRIPT_NAME'});
  32 my $users  = eval('getpwuid(0)') && eval('getgrgid(0)');
  33
  34 my %dispatch = ('show'      => \&exec_show,
  35                 'beginedit' => \&exec_beginedit,
  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                 'about'     => \&exec_about
  45                );
  46
  47 ### Export ###
  48
  49 use base qw(Exporter);
  50
  51 @EXPORT = qw(exec_command);
  52
  53 # exec_command()
  54 #
  55 # Execute the specified command
  56 #
  57 # Params: 1. Command to execute
  58 #         2. Reference to user input hash
  59 #         3. Reference to config hash
  60 #
  61 # Return: Output of the command (Scalar Reference)
  62
  63 sub exec_command($$$)
  64 {
  65  my ($command,$data,$config) = @_;
  66
  67  foreach(keys(%dispatch))
  68  {
  69   if(lc($_) eq lc($command))
  70   {
  71    my $output = &{$dispatch{$_}}($data,$config);
  72    return $output;
  73   }
  74  }
  75
  76  return error($config->{'errors'}->{'command_unknown'},'/',{COMMAND => encode_html($command)});
  77 }
  78
  79 # exec_show()
  80 #
  81 # View a directory or a file
  82 #
  83 # Params: 1. Reference to user input hash
  84 #         2. Reference to config hash
  85 #
  86 # Return: Output of the command (Scalar Reference)
  87
  88 sub exec_show($$)
  89 {
  90  my ($data,$config) = @_;
  91  my $physical       = $data->{'physical'};
  92  my $virtual        = $data->{'virtual'};
  93  my $upper_path     = multi_string(upper_path($virtual));
  94
  95  my $tpl = new Template;
  96
  97  if(-d $physical && not -l $physical)
  98  {
  99   # Create directory listing
 100
 101   return error($config->{'errors'}->{'no_dir_access'},$upper_path->{'normal'}) unless(-r $physical && -x $physical);
 102
 103   my $direntries = dir_read($physical);
 104   return error($config->{'errors'}->{'dir_read_failed'},$upper_path->{'normal'},{DIR => encode_html($virtual)}) unless($direntries);
 105
 106   my $files = $direntries->{'files'};
 107   my $dirs  = $direntries->{'dirs'};
 108
 109   my $dirlist = '';
 110
 111   my $filter1 = $data->{'cgi'}->param('filter') || '*';        # The real wildcard
 112   my $filter2 = ($filter1 && $filter1 ne '*') ? $filter1 : ''; # Wildcard for output
 113
 114   # Create the link to the upper directory
 115   # (only if the current directory is not the root directory)
 116
 117   unless($virtual eq '/')
 118   {
 119    my @stat  = stat($physical.'/..');
 120
 121    my $udtpl = new Template;
 122    $udtpl->read_file($config->{'templates'}->{'dirlist_up'});
 123
 124    $udtpl->fillin('UPPER_DIR',$upper_path->{'html'});
 125    $udtpl->fillin('UPPER_DIR_URL',$upper_path->{'url'});
 126    $udtpl->fillin('DATE',encode_html(strftime($config->{'timeformat'},($config->{'use_gmt'}) ? gmtime($stat[9]) : localtime($stat[9]))));
 127
 128    $dirlist .= $udtpl->get_template;
 129   }
 130
 131   # Directories
 132
 133   foreach my $dir(@$dirs)
 134   {
 135    next unless(dos_wildcard_match($filter1,$dir));
 136
 137    my $phys_path = $physical.'/'.$dir;
 138    my $virt_path = multi_string($virtual.$dir.'/');
 139
 140    my @stat      = stat($phys_path);
 141
 142    my $dtpl = new Template;
 143    $dtpl->read_file($config->{'templates'}->{'dirlist_dir'});
 144
 145    $dtpl->fillin('DIR',$virt_path->{'html'});
 146    $dtpl->fillin('DIR_URL',$virt_path->{'url'});
 147    $dtpl->fillin('DIR_NAME',encode_html($dir));
 148    $dtpl->fillin('DATE',encode_html(strftime($config->{'timeformat'},($config->{'use_gmt'}) ? gmtime($stat[9]) : localtime($stat[9]))));
 149    $dtpl->fillin('URL',equal_url(encode_html($config->{'httproot'}),$virt_path->{'html'}));
 150
 151    $dtpl->parse_if_block('readable',-r $phys_path && -x $phys_path);
 152    $dtpl->parse_if_block('users',$users && -o $phys_path);
 153
 154    $dirlist .= $dtpl->get_template;
 155   }
 156
 157   # Files
 158
 159   foreach my $file(@$files)
 160   {
 161    next unless(dos_wildcard_match($filter1,$file));
 162
 163    my $phys_path = $physical.'/'.$file;
 164    my $virt_path = multi_string($virtual.$file);
 165
 166    my @stat      = lstat($phys_path);
 167    my $too_large = $config->{'max_file_size'} && $stat[7] > $config->{'max_file_size'};
 168
 169    my $ftpl = new Template;
 170    $ftpl->read_file($config->{'templates'}->{'dirlist_file'});
 171
 172    $ftpl->fillin('FILE',$virt_path->{'html'});
 173    $ftpl->fillin('FILE_URL',$virt_path->{'url'});
 174    $ftpl->fillin('FILE_NAME',encode_html($file));
 175    $ftpl->fillin('FILE_URL',$virt_path->{'url'});
 176    $ftpl->fillin('SIZE',$stat[7]);
 177    $ftpl->fillin('DATE',encode_html(strftime($config->{'timeformat'},($config->{'use_gmt'}) ? gmtime($stat[9]) : localtime($stat[9]))));
 178    $ftpl->fillin('URL',equal_url(encode_html($config->{'httproot'}),$virt_path->{'html'}));
 179
 180    $ftpl->parse_if_block('link',-l $phys_path);
 181    $ftpl->parse_if_block('readable',-r $phys_path);
 182    $ftpl->parse_if_block('writeable',-w $phys_path);
 183    $ftpl->parse_if_block('binary',-B $phys_path);
 184
 185    $ftpl->parse_if_block('viewable',(-r $phys_path && -T $phys_path && not $too_large) || -l $phys_path);
 186    $ftpl->parse_if_block('editable',(-r $phys_path && -w $phys_path && -T $phys_path && not $too_large) && not -l $phys_path);
 187
 188    $ftpl->parse_if_block('too_large',$config->{'max_file_size'} && $stat[7] > $config->{'max_file_size'});
 189
 190    $ftpl->parse_if_block('users',$users && -o $phys_path);
 191
 192    $dirlist .= $ftpl->get_template;
 193   }
 194
 195   $tpl->read_file($config->{'templates'}->{'dirlist'});
 196
 197   $tpl->fillin('DIRLIST',$dirlist);
 198   $tpl->fillin('DIR',encode_html($virtual));
 199   $tpl->fillin('DIR_URL',escape($virtual));
 200   $tpl->fillin('SCRIPT',$script);
 201   $tpl->fillin('URL',encode_html(equal_url($config->{'httproot'},$virtual)));
 202
 203   $tpl->fillin('FILTER',encode_html($filter2));
 204   $tpl->fillin('FILTER_URL',escape($filter2));
 205
 206   $tpl->parse_if_block('empty',$dirlist eq '');
 207   $tpl->parse_if_block('dir_writeable',-w $physical);
 208   $tpl->parse_if_block('filter',$filter2);
 209   $tpl->parse_if_block('gmt',$config->{'use_gmt'});
 210  }
 211  elsif(-l $physical)
 212  {
 213   # Show the target of a symbolic link
 214
 215   my $link_target = readlink($physical);
 216
 217   $tpl->read_file($config->{'templates'}->{'viewlink'});
 218
 219   $tpl->fillin('FILE',encode_html($virtual));
 220   $tpl->fillin('DIR',$upper_path->{'html'});
 221   $tpl->fillin('DIR_URL',$upper_path->{'url'});
 222   $tpl->fillin('URL',encode_html(equal_url($config->{'httproot'},$virtual)));
 223   $tpl->fillin('SCRIPT',$script);
 224
 225   $tpl->fillin('LINK_TARGET',encode_html($link_target));
 226  }
 227  else
 228  {
 229   # View a file
 230
 231   return error($config->{'errors'}->{'no_view'},$upper_path->{'normal'}) unless(-r $physical);
 232
 233   # Check on binary files
 234   # We have to do it in this way or empty files will be recognized
 235   # as binary files
 236
 237   return error($config->{'errors'}->{'binary_file'},$upper_path->{'normal'}) unless(-T $physical);
 238
 239   # Is the file too large?
 240
 241   return error($config->{'errors'}->{'file_too_large'},$upper_path->{'normal'},{SIZE => $config->{'max_file_size'}}) if($config->{'max_file_size'} && -s $physical > $config->{'max_file_size'});
 242
 243   # View the file
 244
 245   my $content =  file_read($physical);
 246   $$content   =~ s/\015\012|\012|\015/\n/g;
 247
 248   $tpl->read_file($config->{'templates'}->{'viewfile'});
 249
 250   $tpl->fillin('FILE',encode_html($virtual));
 251   $tpl->fillin('FILE_URL',escape($virtual));
 252   $tpl->fillin('DIR',$upper_path->{'html'});
 253   $tpl->fillin('DIR_URL',$upper_path->{'url'});
 254   $tpl->fillin('URL',encode_html(equal_url($config->{'httproot'},$virtual)));
 255   $tpl->fillin('SCRIPT',$script);
 256
 257   $tpl->parse_if_block('editable',-w $physical);
 258
 259   $tpl->fillin('CONTENT',encode_html($$content));
 260  }
 261
 262  my $output  = header(-type => 'text/html');
 263  $output    .= $tpl->get_template;
 264
 265  return \$output;
 266 }
 267
 268 # exec_beginedit
 269 #
 270 # Lock a file and display a form to edit it
 271 #
 272 # Params: 1. Reference to user input hash
 273 #         2. Reference to config hash
 274 #
 275 # Return: Output of the command (Scalar Reference)
 276
 277 sub exec_beginedit($$)
 278 {
 279  my ($data,$config) = @_;
 280  my $physical       = $data->{'physical'};
 281  my $virtual        = $data->{'virtual'};
 282  my $dir            = upper_path($virtual);
 283
 284  return error($config->{'errors'}->{'link_edit'},$dir) if(-l $physical);
 285  return error($config->{'errors'}->{'dir_edit'}, $dir) if(-d $physical);
 286  return error($config->{'errors'}->{'no_edit'},  $dir) unless(-r $physical && -w $physical);
 287
 288  # Check on binary files
 289
 290  return error($config->{'errors'}->{'binary_file'},$dir) unless(-T $physical);
 291
 292  # Is the file too large?
 293
 294  return error($config->{'errors'}->{'file_too_large'},$dir,{SIZE => $config->{'max_file_size'}}) if($config->{'max_file_size'} && -s $physical > $config->{'max_file_size'});
 295
 296  # Show the editing form
 297
 298  my $content =  file_read($physical);
 299  my $md5sum  =  md5_hex($$content);
 300  $$content   =~ s/\015\012|\012|\015/\n/g;
 301
 302  my $tpl = new Template;
 303  $tpl->read_file($config->{'templates'}->{'editfile'});
 304
 305  $tpl->fillin('FILE',encode_html($virtual));
 306  $tpl->fillin('FILE_URL',escape($virtual));
 307  $tpl->fillin('DIR',encode_html($dir));
 308  $tpl->fillin('DIR_URL',escape($dir));
 309  $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 310  $tpl->fillin('SCRIPT',$script);
 311  $tpl->fillin('MD5SUM',$md5sum);
 312  $tpl->fillin('CONTENT',encode_html($$content));
 313
 314  $tpl->parse_if_block('error',0);
 315
 316  my $output = header(-type => 'text/html');
 317  $output   .= $tpl->get_template;
 318
 319  return \$output;
 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 $cgi            = $data->{'cgi'};
 338  my $content        = $cgi->param('filecontent');
 339  my $md5sum         = $cgi->param('md5sum');
 340  my $output;
 341
 342  if(defined $content && $md5sum)
 343  {
 344   # Normalize newlines
 345
 346   $content =~ s/\015\012|\012|\015/\n/g;
 347
 348   if($cgi->param('saveas') && $data->{'new_physical'} ne '' && $data->{'new_virtual'} ne '')
 349   {
 350    # Create the new filename
 351
 352    $physical = $data->{'new_physical'};
 353    $virtual  = $data->{'new_virtual'};
 354   }
 355
 356   return error($config->{'errors'}->{'link_edit'},$dir)      if(-l $physical);
 357   return error($config->{'errors'}->{'dir_edit'},$dir)       if(-d $physical);
 358   return error($config->{'errors'}->{'no_edit'},$dir)        if(-e $physical && !(-r $physical && -w $physical));
 359   return error($config->{'errors'}->{'text_to_binary'},$dir) if(-e $physical && not -T $physical);
 360
 361   # For technical reasons, we can't use file_save() for
 362   # saving the file...
 363
 364   local *FILE;
 365
 366   sysopen(FILE,$physical,O_RDWR | O_CREAT) or return error($config->{'errors'}->{'edit_failed'},$dir,{FILE => $virtual});
 367   file_lock(*FILE,LOCK_EX)                 or do { close(FILE); return error($config->{'errors'}->{'edit_failed'},$dir,{FILE => $virtual}) };
 368
 369   my $md5 = new Digest::MD5;
 370   $md5->addfile(*FILE);
 371
 372   my $md5file = $md5->hexdigest;
 373   my $md5data = md5_hex($content);
 374
 375   if($md5file ne $md5sum && $md5data ne $md5file && not $cgi->param('saveas'))
 376   {
 377    # The file changed meanwhile
 378
 379    my $tpl = new Template;
 380    $tpl->read_file($config->{'templates'}->{'editfile'});
 381
 382    $tpl->fillin('ERROR',$config->{'errors'}->{'edit_file_changed'});
 383
 384    $tpl->fillin('FILE',encode_html($virtual));
 385    $tpl->fillin('FILE_URL',escape($virtual));
 386    $tpl->fillin('DIR',encode_html($dir));
 387    $tpl->fillin('DIR_URL',escape($dir));
 388    $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 389    $tpl->fillin('SCRIPT',$script);
 390    $tpl->fillin('MD5SUM',$md5file);
 391    $tpl->fillin('CONTENT',encode_html($content));
 392
 393    $tpl->parse_if_block('error',1);
 394
 395    my $data = header(-type => 'text/html');
 396    $data   .= $tpl->get_template;
 397
 398    $output  = \$data;
 399   }
 400   else
 401   {
 402    if($md5data ne $md5file)
 403    {
 404     seek(FILE,0,0);
 405     truncate(FILE,0);
 406
 407     print FILE $content;
 408    }
 409
 410    $output = devedit_reload({command => 'show', file => $dir});
 411   }
 412
 413   close(FILE);
 414
 415   return $output;
 416  }
 417
 418  return devedit_reload({command => 'beginedit', file => $virtual});
 419 }
 420
 421 # exec_mkfile()
 422 #
 423 # Create a file and return to directory view
 424 #
 425 # Params: 1. Reference to user input hash
 426 #         2. Reference to config hash
 427 #
 428 # Return: Output of the command (Scalar Reference)
 429
 430 sub exec_mkfile($$)
 431 {
 432  my ($data,$config) = @_;
 433  my $new_physical   = $data->{'new_physical'};
 434  my $new_virtual    = $data->{'new_virtual'};
 435  my $dir            = upper_path($new_virtual);
 436  $new_virtual       = encode_html($new_virtual);
 437
 438  if($new_physical)
 439  {
 440   return error($config->{'errors'}->{'file_exists'},$dir,{FILE => $new_virtual}) if(-e $new_physical);
 441
 442   file_create($new_physical) or return error($config->{'errors'}->{'mkfile_failed'},$dir,{FILE => $new_virtual});
 443   return devedit_reload({command => 'show', file => $dir});
 444  }
 445  else
 446  {
 447   my $tpl = new Template;
 448   $tpl->read_file($config->{'templates'}->{'mkfile'});
 449
 450   $tpl->fillin('DIR','/');
 451   $tpl->fillin('SCRIPT',$script);
 452
 453   my $output = header(-type => 'text/html');
 454   $output   .= $tpl->get_template;
 455
 456   return \$output;
 457  }
 458 }
 459
 460 # exec_mkdir()
 461 #
 462 # Create a directory and return to directory view
 463 #
 464 # Params: 1. Reference to user input hash
 465 #         2. Reference to config hash
 466 #
 467 # Return: Output of the command (Scalar Reference)
 468
 469 sub exec_mkdir($$)
 470 {
 471  my ($data,$config) = @_;
 472  my $new_physical   = $data->{'new_physical'};
 473  my $new_virtual    = $data->{'new_virtual'};
 474  my $dir            = upper_path($new_virtual);
 475  $new_virtual       = encode_html($new_virtual);
 476
 477  if($new_physical)
 478  {
 479   return error($config->{'errors'}->{'file_exists'},$dir,{FILE => $new_virtual}) if(-e $new_physical);
 480
 481   mkdir($new_physical,0777) or return error($config->{'errors'}->{'mkdir_failed'},$dir,{DIR => $new_virtual});
 482   return devedit_reload({command => 'show', file => $dir});
 483  }
 484  else
 485  {
 486   my $tpl = new Template;
 487   $tpl->read_file($config->{'templates'}->{'mkdir'});
 488
 489   $tpl->fillin('DIR','/');
 490   $tpl->fillin('SCRIPT',$script);
 491
 492   my $output = header(-type => 'text/html');
 493   $output   .= $tpl->get_template;
 494
 495   return \$output;
 496  }
 497 }
 498
 499 # exec_upload()
 500 #
 501 # Process a file upload
 502 #
 503 # Params: 1. Reference to user input hash
 504 #         2. Reference to config hash
 505 #
 506 # Return: Output of the command (Scalar Reference)
 507
 508 sub exec_upload($$)
 509 {
 510  my ($data,$config) = @_;
 511  my $physical       = $data->{'physical'};
 512  my $virtual        = $data->{'virtual'};
 513  my $cgi            = $data->{'cgi'};
 514
 515  return error($config->{'errors'}->{'no_directory'},upper_path($virtual),{FILE => $virtual}) unless(-d $physical && not -l $physical);
 516  return error($config->{'errors'}->{'dir_no_create'},$virtual,{DIR => $virtual})             unless(-w $physical);
 517
 518  if(my $uploaded_file = $cgi->param('uploaded_file'))
 519  {
 520   # Process file upload
 521
 522   my $filename  = file_name($uploaded_file);
 523   my $file_phys = $physical.'/'.$filename;
 524   my $file_virt = encode_html($virtual.$filename);
 525
 526   if(-e $file_phys)
 527   {
 528    return error($config->{'errors'}->{'link_replace'},$virtual)                        if(-l $file_phys);
 529    return error($config->{'errors'}->{'dir_replace'},$virtual)                         if(-d $file_phys);
 530    return error($config->{'errors'}->{'exist_no_write'},$virtual,{FILE => $file_virt}) unless(-w $file_phys);
 531    return error($config->{'errors'}->{'file_exists'},$virtual,{FILE => $file_virt})    unless($cgi->param('overwrite'));
 532   }
 533
 534   my $ascii  = $cgi->param('ascii');
 535   my $handle = $cgi->upload('uploaded_file');
 536
 537   return error($config->{'errors'}->{'invalid_upload'},$virtual) unless($handle);
 538
 539   # Read transferred file and write it to disk
 540
 541   read($handle, my $data, -s $handle);
 542   $data =~ s/\015\012|\012|\015/\n/g if($ascii); # Replace line separators if transferring in ASCII mode
 543   file_save($file_phys,\$data,not $ascii) or return error($config->{'errors'}->{'mkfile_failed'},$virtual,{FILE => $file_virt});
 544
 545   return devedit_reload({command => 'show', file => $virtual});
 546  }
 547  else
 548  {
 549   my $tpl = new Template;
 550   $tpl->read_file($config->{'templates'}->{'upload'});
 551
 552   $tpl->fillin('DIR',encode_html($virtual));
 553   $tpl->fillin('DIR_URL',escape($virtual));
 554   $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 555   $tpl->fillin('SCRIPT',$script);
 556
 557   my $output = header(-type => 'text/html');
 558   $output   .= $tpl->get_template;
 559
 560   return \$output;
 561  }
 562 }
 563
 564 # exec_copy()
 565 #
 566 # Copy a file and return to directory view
 567 #
 568 # Params: 1. Reference to user input hash
 569 #         2. Reference to config hash
 570 #
 571 # Return: Output of the command (Scalar Reference)
 572
 573 sub exec_copy($$)
 574 {
 575  my ($data,$config) = @_;
 576  my $physical       = $data->{'physical'};
 577  my $virtual        = $data->{'virtual'};
 578  my $dir            = upper_path($virtual);
 579  my $new_physical   = $data->{'new_physical'};
 580
 581  return error($config->{'errors'}->{'link_copy'},$dir) if(-l $physical);
 582  return error($config->{'errors'}->{'dir_copy'},$dir)  if(-d $physical);
 583  return error($config->{'errors'}->{'no_copy'},$dir)   unless(-r $physical);
 584
 585  if($new_physical)
 586  {
 587   my $new_virtual = multi_string($data->{'new_virtual'});
 588   my $new_dir     = upper_path($new_virtual->{'normal'});
 589
 590   if(-e $new_physical)
 591   {
 592    return error($config->{'errors'}->{'link_replace'},$new_dir)                                    if(-l $new_physical);
 593    return error($config->{'errors'}->{'dir_replace'},$new_dir)                                     if(-d $new_physical);
 594    return error($config->{'errors'}->{'exist_no_write'},$new_dir,{FILE => $new_virtual->{'html'}}) unless(-w $new_physical);
 595
 596    if(not $data->{'cgi'}->param('confirmed'))
 597    {
 598     my $tpl = new Template;
 599     $tpl->read_file($config->{'templates'}->{'confirm_replace'});
 600
 601     $tpl->fillin('FILE',encode_html($virtual));
 602     $tpl->fillin('NEW_FILE',$new_virtual->{'html'});
 603     $tpl->fillin('NEW_FILENAME',file_name($new_virtual->{'html'}));
 604     $tpl->fillin('NEW_DIR',encode_html($new_dir));
 605     $tpl->fillin('DIR',encode_html($dir));
 606     $tpl->fillin('DIR_URL',escape($dir));
 607
 608     $tpl->fillin('COMMAND','copy');
 609     $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 610     $tpl->fillin('SCRIPT',$script);
 611
 612     my $output = header(-type => 'text/html');
 613     $output   .= $tpl->get_template;
 614
 615     return \$output;
 616    }
 617   }
 618
 619   copy($physical,$new_physical) or return error($config->{'errors'}->{'copy_failed'},$dir,{FILE => encode_html($virtual), NEW_FILE => $new_virtual->{'html'}});
 620   return devedit_reload({command => 'show', file => $new_dir});
 621  }
 622  else
 623  {
 624   my $tpl = new Template;
 625   $tpl->read_file($config->{'templates'}->{'copyfile'});
 626
 627   $tpl->fillin('FILE',encode_html($virtual));
 628   $tpl->fillin('DIR',encode_html($dir));
 629   $tpl->fillin('DIR_URL',escape($dir));
 630   $tpl->fillin('URL',equal_url($config->{'httproot'},encode_html($virtual)));
 631   $tpl->fillin('SCRIPT',$script);
 632
 633   my $output = header(-type => 'text/html');
 634   $output   .= $tpl->get_template;
 635
 636   return \$output;
 637  }
 638 }
 639
 640 # exec_rename()
 641 #
 642 # Rename/move a file and return to directory view
 643 #
 644 # Params: 1. Reference to user input hash
 645 #         2. Reference to config hash
 646 #
 647 # Return: Output of the command (Scalar Reference)
 648
 649 sub exec_rename($$)
 650 {
 651  my ($data,$config) = @_;
 652  my $physical       = $data->{'physical'};
 653  my $virtual        = $data->{'virtual'};
 654  my $dir            = upper_path($virtual);
 655  my $new_physical   = $data->{'new_physical'};
 656
 657  return error($config->{'errors'}->{'rename_root'},'/') if($virtual eq '/');
 658  return error($config->{'errors'}->{'no_rename'},$dir)  unless(-w upper_path($physical));
 659
 660  if($new_physical)
 661  {
 662   my $new_virtual = $data->{'new_virtual'};
 663   my $new_dir     = upper_path($new_virtual);
 664   $new_virtual    = encode_html($new_virtual);
 665
 666   if(-e $new_physical)
 667   {
 668    return error($config->{'errors'}->{'dir_replace'},$new_dir)                           if(-d $new_physical && not -l $new_physical);
 669    return error($config->{'errors'}->{'exist_no_write'},$new_dir,{FILE => $new_virtual}) unless(-w $new_physical);
 670
 671    if(not $data->{'cgi'}->param('confirmed'))
 672    {
 673     my $tpl = new Template;
 674     $tpl->read_file($config->{'templates'}->{'confirm_replace'});
 675
 676     $tpl->fillin('FILE',$virtual);
 677     $tpl->fillin('NEW_FILE',$new_virtual);
 678     $tpl->fillin('NEW_FILENAME',file_name($new_virtual));
 679     $tpl->fillin('NEW_DIR',$new_dir);
 680     $tpl->fillin('DIR',$dir);
 681
 682     $tpl->fillin('COMMAND','rename');
 683     $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 684     $tpl->fillin('SCRIPT',$script);
 685
 686     my $output = header(-type => 'text/html');
 687     $output   .= $tpl->get_template;
 688
 689     return \$output;
 690    }
 691   }
 692
 693   move($physical,$new_physical) or return error($config->{'errors'}->{'rename_failed'},$dir,{FILE => $virtual, NEW_FILE => $new_virtual});
 694   return devedit_reload({command => 'show', file => $new_dir});
 695  }
 696  else
 697  {
 698   my $tpl = new Template;
 699   $tpl->read_file($config->{'templates'}->{'renamefile'});
 700
 701   $tpl->fillin('FILE',$virtual);
 702   $tpl->fillin('DIR',encode_html($dir));
 703   $tpl->fillin('DIR_URL',escape($dir));
 704   $tpl->fillin('URL',equal_url($config->{'httproot'},$virtual));
 705   $tpl->fillin('SCRIPT',$script);
 706
 707   my $output = header(-type => 'text/html');
 708   $output   .= $tpl->get_template;
 709
 710   return \$output;
 711  }
 712 }
 713
 714 # exec_remove()
 715 #
 716 # Remove a file or a directory and return to directory view
 717 #
 718 # Params: 1. Reference to user input hash
 719 #         2. Reference to config hash
 720 #
 721 # Return: Output of the command (Scalar Reference)
 722
 723 sub exec_remove($$)
 724 {
 725  my ($data,$config) = @_;
 726  my $physical       = $data->{'physical'};
 727  my $virtual        = $data->{'virtual'};
 728  my $dir            = upper_path($virtual);
 729
 730  return error($config->{'errors'}->{'remove_root'},'/') if($virtual eq '/');
 731  return error($config->{'errors'}->{'no_delete'},$dir)  unless(-w upper_path($physical));
 732
 733  if(-d $physical && not -l $physical)
 734  {
 735   # Remove a directory
 736
 737   if($data->{'cgi'}->param('confirmed'))
 738   {
 739    rmtree($physical);
 740    return devedit_reload({command => 'show', file => $dir});
 741   }
 742   else
 743   {
 744    my $tpl = new Template;
 745    $tpl->read_file($config->{'templates'}->{'confirm_rmdir'});
 746
 747    $tpl->fillin('DIR',encode_html($virtual));
 748    $tpl->fillin('DIR_URL',escape($virtual));
 749    $tpl->fillin('UPPER_DIR',encode_html($dir));
 750    $tpl->fillin('UPPER_DIR_URL',escape($dir));
 751    $tpl->fillin('URL',equal_url($config->{'httproot'},encode_html($virtual)));
 752    $tpl->fillin('SCRIPT',$script);
 753
 754    my $output = header(-type => 'text/html');
 755    $output   .= $tpl->get_template;
 756
 757    return \$output;
 758   }
 759  }
 760  else
 761  {
 762   # Remove a file
 763
 764   if($data->{'cgi'}->param('confirmed'))
 765   {
 766    unlink($physical) or return error($config->{'errors'}->{'delete_failed'},$dir,{FILE => $virtual});
 767    return devedit_reload({command => 'show', file => $dir});
 768   }
 769   else
 770   {
 771    my $tpl = new Template;
 772    $tpl->read_file($config->{'templates'}->{'confirm_rmfile'});
 773
 774    $tpl->fillin('FILE',encode_html($virtual));
 775    $tpl->fillin('FILE_URL',escape($virtual));
 776    $tpl->fillin('DIR',encode_html($dir));
 777    $tpl->fillin('DIR_URL',escape($dir));
 778    $tpl->fillin('URL',equal_url($config->{'httproot'},encode_html($virtual)));
 779    $tpl->fillin('SCRIPT',$script);
 780
 781    my $output = header(-type => 'text/html');
 782    $output   .= $tpl->get_template;
 783
 784    return \$output;
 785   }
 786  }
 787 }
 788
 789 # exec_chprop()
 790 #
 791 # Change the mode and the group of a file or a directory
 792 #
 793 # Params: 1. Reference to user input hash
 794 #         2. Reference to config hash
 795 #
 796 # Return: Output of the command (Scalar Reference)
 797
 798 sub exec_chprop($$)
 799 {
 800  my ($data,$config) = @_;
 801  my $physical       = $data->{'physical'};
 802  my $virtual        = $data->{'virtual'};
 803  my $dir            = upper_path($virtual);
 804
 805  return error($config->{'errors'}->{'no_users'},$dir,{FILE => encode_html($virtual)})  unless($users);
 806  return error($config->{'errors'}->{'chprop_root'},'/')                                if($virtual eq '/');
 807  return error($config->{'errors'}->{'not_owner'},$dir,{FILE => encode_html($virtual)}) unless(-o $physical);
 808  return error($config->{'errors'}->{'chprop_link'},$dir)                               if(-l $physical);
 809
 810  my $cgi   = $data->{'cgi'};
 811  my $mode  = $cgi->param('mode');
 812  my $group = $cgi->param('group');
 813
 814  if($mode || $group)
 815  {
 816   if($mode)
 817   {
 818    # Change the mode
 819
 820    return error($config->{'errors'}->{'invalid_mode'},$dir) unless($mode =~ /^[0-7]{3,}$/);
 821    chmod(oct($mode),$physical);
 822   }
 823
 824   if($group)
 825   {
 826    # Change the group using the `chgrp` system command
 827
 828    return error($config->{'errors'}->{'invalid_group'},$dir,{GROUP => encode_html($group)}) unless($group =~ /^[a-z0-9_]+[a-z0-9_-]*$/i);
 829    system('chgrp',$group,$physical);
 830   }
 831
 832   return devedit_reload({command => 'show', file => $dir});
 833  }
 834  else
 835  {
 836   # Display the form
 837
 838   my @stat = stat($physical);
 839   my $mode = $stat[2];
 840   my $gid  = $stat[5];
 841
 842   my $tpl = new Template;
 843   $tpl->read_file($config->{'templates'}->{'chprop'});
 844
 845   # Insert file properties into the template
 846
 847   $tpl->fillin('MODE_OCTAL',substr(sprintf('%04o',$mode),-4));
 848   $tpl->fillin('MODE_STRING',mode_string($mode));
 849   $tpl->fillin('GID',$gid);
 850
 851   if(my $group = getgrgid($gid))
 852   {
 853    $tpl->fillin('GROUP',encode_html($group));
 854    $tpl->parse_if_block('group_detected',1);
 855   }
 856   else
 857   {
 858    $tpl->parse_if_block('group_detected',0);
 859   }
 860
 861   # Insert other information
 862
 863   $tpl->fillin('FILE',encode_html($virtual));
 864   $tpl->fillin('FILE_URL',escape($virtual));
 865   $tpl->fillin('DIR',encode_html($dir));
 866   $tpl->fillin('DIR_URL',escape($dir));
 867   $tpl->fillin('URL',equal_url($config->{'httproot'},encode_html($virtual)));
 868   $tpl->fillin('SCRIPT',$script);
 869
 870   my $output = header(-type => 'text/html');
 871   $output   .= $tpl->get_template;
 872
 873   return \$output;
 874  }
 875 }
 876
 877 # exec_about()
 878 #
 879 # Display some information about Dev-Editor
 880 #
 881 # Params: 1. Reference to user input hash
 882 #         2. Reference to config hash
 883 #
 884 # Return: Output of the command (Scalar Reference)
 885
 886 sub exec_about($$)
 887 {
 888  my ($data,$config) = @_;
 889
 890  my $tpl = new Template;
 891  $tpl->read_file($config->{'templates'}->{'about'});
 892
 893  $tpl->fillin('SCRIPT',$script);
 894
 895  # Dev-Editor's version number
 896
 897  $tpl->fillin('VERSION',$data->{'version'});
 898
 899  # Some path information
 900
 901  $tpl->fillin('SCRIPT_PHYS',encode_html($ENV{'SCRIPT_FILENAME'}));
 902  $tpl->fillin('CONFIG_PATH',encode_html($data->{'configfile'}));
 903  $tpl->fillin('FILE_ROOT',  encode_html($config->{'fileroot'}));
 904  $tpl->fillin('HTTP_ROOT',  encode_html($config->{'httproot'}));
 905
 906  # Perl
 907
 908  $tpl->fillin('PERL_PROG',encode_html($^X));
 909  $tpl->fillin('PERL_VER', sprintf('%vd',$^V));
 910
 911  # Information about the server
 912
 913  $tpl->fillin('HTTPD',encode_html($ENV{'SERVER_SOFTWARE'}));
 914  $tpl->fillin('OS',   encode_html($^O));
 915  $tpl->fillin('TIME', encode_html(strftime($config->{'timeformat'},($config->{'use_gmt'}) ? gmtime : localtime)));
 916
 917  $tpl->parse_if_block('gmt',$config->{'use_gmt'});
 918
 919  # Process information
 920
 921  $tpl->fillin('PID',$$);
 922
 923  # The following information is only available on systems supporting
 924  # users and groups
 925
 926  if($users)
 927  {
 928   # Dev-Editor is running on a system which allows users and groups
 929   # So we display the user and the group of our process
 930
 931   my $uid = POSIX::getuid;
 932   my $gid = POSIX::getgid;
 933
 934   $tpl->parse_if_block('users',1);
 935
 936   # ID's of user and group
 937
 938   $tpl->fillin('UID',$uid);
 939   $tpl->fillin('GID',$gid);
 940
 941   # Names of user and group
 942
 943   if(my $user = getpwuid($uid))
 944   {
 945    $tpl->fillin('USER',encode_html($user));
 946    $tpl->parse_if_block('user_detected',1);
 947   }
 948   else
 949   {
 950    $tpl->parse_if_block('user_detected',0);
 951   }
 952
 953   if(my $group = getgrgid($gid))
 954   {
 955    $tpl->fillin('GROUP',encode_html($group));
 956    $tpl->parse_if_block('group_detected',1);
 957   }
 958   else
 959   {
 960    $tpl->parse_if_block('group_detected',0);
 961   }
 962
 963   # Process umask
 964
 965   $tpl->fillin('UMASK',sprintf('%04o',umask));
 966  }
 967  else
 968  {
 969   $tpl->parse_if_block('users',0);
 970  }
 971
 972  my $output = header(-type => 'text/html');
 973  $output   .= $tpl->get_template;
 974
 975  return \$output;
 976 }
 977
 978 # it's true, baby ;-)
 979
 980 1;
 981
 982 #
 983 ### End ###