html/cgi-bin/aliases.cgi

   1 #!/usr/bin/perl
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2007  Michael Tremer & Christian Schmidt                      #
   6 #                                                                             #
   7 # This program is free software: you can redistribute it and/or modify        #
   8 # it under the terms of the GNU General Public License as published by        #
   9 # the Free Software Foundation, either version 3 of the License, or           #
  10 # (at your option) any later version.                                         #
  11 #                                                                             #
  12 # This program is distributed in the hope that it will be useful,             #
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  15 # GNU General Public License for more details.                                #
  16 #                                                                             #
  17 # You should have received a copy of the GNU General Public License           #
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  19 #                                                                             #
  20 ###############################################################################
  21 #
  22 # this cgi is base on IPCop CGI - aliases.cgi
  23 #
  24
  25 # to fully troubleshot your code, uncomment diagnostics, Carp and cluck lines
  26 #use diagnostics; # need to add the file /usr/lib/perl5/5.8.x/pods/perldiag.pod before to work
  27 # next look at /var/log/httpd/error_log , http://www.perl.com/pub/a/2002/05/07/mod_perl.html may help
  28 #use warnings;
  29 use strict;
  30 #use Carp ();
  31 #local $SIG{__WARN__} = \&Carp::cluck;
  32
  33 require '/var/ipfire/general-functions.pl';     # replace /var/ipcop with /var/ipcop in case of manual install
  34 require "${General::swroot}/lang.pl";
  35 require "${General::swroot}/header.pl";
  36
  37 #workaround to suppress a warning when a variable is used only once
  38 my @dummy = ( ${Header::colouryellow} );
  39    @dummy = ( ${Header::table1colour} );
  40    @dummy = ( ${Header::table2colour} );
  41 undef (@dummy);
  42
  43 # Files used
  44 my $setting = "${General::swroot}/ethernet/settings";
  45 our $datafile = "${General::swroot}/ethernet/aliases";
  46
  47
  48 our %settings=();
  49 #Settings1
  50
  51 #Settings2 for editing the multi-line list
  52 #Must not be saved !
  53 $settings{'IP'} = '';
  54 $settings{'ENABLED'} = 'off';           # Every check box must be set to off
  55 $settings{'NAME'} = '';
  56 my @nosaved=('IP','ENABLED','NAME');    # List here ALL setting2 fields. Mandatory
  57
  58 $settings{'ACTION'} = '';               # add/edit/remove
  59 $settings{'KEY1'} = '';                 # point record for ACTION
  60
  61 #Define each field that can be used to sort columns
  62 my $sortstring='^IP|^NAME';
  63 my $errormessage = '';
  64 my $warnmessage = '';
  65
  66 &Header::showhttpheaders();
  67
  68 # Read needed Ipcop netsettings
  69 my %netsettings=();
  70 $netsettings{'SORT_ALIASES'} = 'NAME';  # default sort
  71 &General::readhash($setting, \%netsettings);
  72
  73 #Get GUI values
  74 &Header::getcgihash(\%settings);
  75
  76 # Load multiline data
  77 our @current = ();
  78 if (open(FILE, "$datafile")) {
  79     @current = <FILE>;
  80     close (FILE);
  81 }
  82
  83 #
  84 # Check Settings1 first because they are needed before working on @current
  85 #
  86 # Remove if no Setting1 needed
  87 #
  88 if ($settings{'ACTION'} eq $Lang::tr{'save'}) {
  89
  90     #
  91     #Validate static Settings1 here
  92     #
  93
  94     unless ($errormessage) {                                    # Everything is ok, save settings
  95         #map (delete ($settings{$_}) ,(@nosaved,'ACTION','KEY1'));# Must never be saved
  96         #&General::writehash($setting, \%settings);             # Save good settings
  97         #$settings{'ACTION'} = $Lang::tr{'save'};               # Recreate  'ACTION'
  98         #map ($settings{$_}= '',(@nosaved,'KEY1'));             # and reinit var to empty
  99
 100         # Rebuild configuration file if needed
 101         &BuildConfiguration;
 102     }
 103
 104     ERROR:                                              # Leave the faulty field untouched
 105 } else {
 106     #&General::readhash($setting, \%settings);          # Get saved settings and reset to good if needed
 107 }
 108
 109 ## Now manipulate the multi-line list with Settings2
 110 # Basic actions are:
 111 #       toggle the check box
 112 #       add/update a new line
 113 #       begin editing a line
 114 #       remove a line
 115
 116
 117 # Toggle enable/disable field.  Field is in second position
 118 if ($settings{'ACTION'} eq $Lang::tr{'toggle enable disable'}) {
 119     #move out new line
 120     chomp(@current[$settings{'KEY1'}]);
 121     my @temp = split(/\,/,@current[$settings{'KEY1'}]);
 122     $temp[1] = $temp[1] eq 'on' ? 'off' : 'on';         # Toggle the field
 123     $temp[2] = '' if ( $temp[2] eq '' );
 124     @current[$settings{'KEY1'}] = join (',',@temp)."\n";
 125     $settings{'KEY1'} = '';                             # End edit mode
 126
 127     &General::log($Lang::tr{'ip alias changed'});
 128
 129     #Save current
 130     open(FILE, ">$datafile") or die 'Unable to open aliases file.';
 131     print FILE @current;
 132     close(FILE);
 133
 134     # Rebuild configuration file
 135     &BuildConfiguration;
 136 }
 137
 138 if ($settings{'ACTION'} eq $Lang::tr{'add'}) {
 139     # Validate inputs
 140     if (! &General::validip($settings{'IP'})) {$errormessage = "invalid ip"};
 141     $settings{'NAME'} = &Header::cleanhtml($settings{'NAME'});
 142
 143     # Make sure we haven't duplicated an alias or RED
 144     my $spacer='';
 145     if ($settings{'IP'} eq $netsettings{'RED_ADDRESS'}) {
 146         $errormessage = $Lang::tr{'duplicate ip'} . ' (RED)';
 147         $spacer=" & ";
 148     }
 149     my $idx=0;
 150     foreach my $line (@current) {
 151         chomp ($line);
 152         my @temp = split (/\,/, $line);
 153         if ( ($settings{'KEY1'} eq '')||(($settings{'KEY1'} ne '') && ($settings{'KEY1'} != $idx))) { # update
 154             if ($temp[0] eq $settings{'IP'}) {
 155                 $errormessage .= $spacer.$Lang::tr{'duplicate ip'};
 156                 $spacer=" & ";
 157             }
 158             if ($temp[2] eq $settings{'NAME'} && $temp[2] ne '') {
 159                 $errormessage .= $spacer.$Lang::tr{'duplicate name'};
 160                 $spacer=" & ";
 161                 }
 162         }
 163         $idx++;
 164     }
 165     unless ($errormessage) {
 166         if ($settings{'KEY1'} eq '') { #add or edit ?
 167             unshift (@current, "$settings{'IP'},$settings{'ENABLED'},$settings{'NAME'}\n");
 168             &General::log($Lang::tr{'ip alias added'});
 169         } else {
 170             @current[$settings{'KEY1'}] = "$settings{'IP'},$settings{'ENABLED'},$settings{'NAME'}\n";
 171             $settings{'KEY1'} = '';       # End edit mode
 172             &General::log($Lang::tr{'ip alias changed'});
 173         }
 174
 175         # Write changes to config file.
 176         &SortDataFile;                          # sort newly added/modified entry
 177
 178         &BuildConfiguration;                    # then re-build conf which use new data
 179
 180 ##
 181 ## if entering data line is repetitive, choose here to not erase fields between each addition
 182 ##
 183         map ($settings{$_}='' ,@nosaved);       # Clear fields
 184     }
 185 }
 186
 187 if ($settings{'ACTION'} eq $Lang::tr{'edit'}) {
 188     #move out new line
 189     my $line = @current[$settings{'KEY1'}];     # KEY1 is the index in current
 190     chomp($line);
 191     my @temp = split(/\,/, $line);
 192
 193 ##
 194 ## move data fields to Setting2 for edition
 195 ##
 196     $settings{'IP'}=$temp[0];                   # Prepare the screen for editing
 197     $settings{'ENABLED'}=$temp[1];
 198     $settings{'NAME'}=$temp[2];
 199 }
 200
 201 if ($settings{'ACTION'} eq $Lang::tr{'remove'}) {
 202     splice (@current,$settings{'KEY1'},1);              # Delete line
 203     open(FILE, ">$datafile") or die 'Unable to open aliases file.';
 204     print FILE @current;
 205     close(FILE);
 206     $settings{'KEY1'} = '';                             # End remove mode
 207     &General::log($Lang::tr{'ip alias removed'});
 208
 209     &BuildConfiguration;                                # then re-build conf which use new data
 210 }
 211
 212
 213
 214 ##  Check if sorting is asked
 215 # If same column clicked, reverse the sort.
 216 if ($ENV{'QUERY_STRING'} =~ /$sortstring/ ) {
 217     my $newsort=$ENV{'QUERY_STRING'};
 218     my $actual=$netsettings{'SORT_ALIASES'};
 219     #Reverse actual sort ?
 220     if ($actual =~ $newsort) {
 221         my $Rev='';
 222         if ($actual !~ 'Rev') {
 223             $Rev='Rev';
 224         }
 225         $newsort.=$Rev;
 226     }
 227     $netsettings{'SORT_ALIASES'}=$newsort;
 228     &General::writehash($setting, \%netsettings);
 229     &SortDataFile;
 230     $settings{'ACTION'} = 'SORT';                       # Recreate  'ACTION'
 231 }
 232
 233 # Default initial value
 234 if ($settings{'ACTION'} eq '' ) { # First launch from GUI
 235     $settings{'ENABLED'} ='on';
 236 }
 237
 238 &Header::openpage($Lang::tr{'external aliases configuration'}, 1, '');
 239 &Header::openbigbox('100%', 'left', '', $errormessage);
 240 my %checked =();     # Checkbox manipulations
 241
 242 if ($errormessage) {
 243     &Header::openbox('100%', 'left', $Lang::tr{'error messages'});
 244     print "<font class='base'>$errormessage&nbsp;</font>";
 245     &Header::closebox();
 246 }
 247 unless (( $netsettings{'CONFIG_TYPE'} =~ /^(1|2|3|4)$/ ) && ($netsettings{'RED_TYPE'} eq 'STATIC'))
 248 {
 249     &Header::openbox('100%', 'left', $Lang::tr{'capswarning'});
 250     print <<END
 251     <table width='100%'>
 252     <tr>
 253     <td width='100%' class='boldbase' align='center'><font color='${Header::colourred}'><b>$Lang::tr{'aliases not active'}</b></font></td>
 254     </tr>
 255     </table>
 256 END
 257 ;
 258     &Header::closebox();
 259 }
 260
 261 #
 262 # Second check box is for editing the list
 263 #
 264 $checked{'ENABLED'}{'on'} = ($settings{'ENABLED'} eq 'on') ? "checked='checked'" : '' ;
 265
 266 my $buttontext = $Lang::tr{'add'};
 267 if ($settings{'KEY1'} ne '') {
 268     $buttontext = $Lang::tr{'update'};
 269     &Header::openbox('100%', 'left', $Lang::tr{'edit an existing alias'});
 270 } else {
 271     &Header::openbox('100%', 'left', $Lang::tr{'add new alias'});
 272 }
 273
 274 #Edited line number (KEY1) passed until cleared by 'save' or 'remove' or 'new sort order'
 275 print <<END
 276 <form method='post' action='$ENV{'SCRIPT_NAME'}'>
 277 <input type='hidden' name='KEY1' value='$settings{'KEY1'}' />
 278 <table width='100%'>
 279 <tr>
 280 <td class='base'><font color='${Header::colourred}'>$Lang::tr{'name'}:&nbsp;<img src='/blob.gif' alt='*' /></font></td>
 281 <td><input type='text' name='NAME' value='$settings{'NAME'}' size='32' /></td>
 282 <td class='base' align='right'><font color='${Header::colourred}'>$Lang::tr{'alias ip'}:&nbsp;</font></td>
 283 <td><input type='text' name='IP' value='$settings{'IP'}' size='16' /></td>
 284 <td class='base' align='right'>$Lang::tr{'enabled'}&nbsp;</td>
 285 <td><input type='checkbox' name='ENABLED' $checked{'ENABLED'}{'on'} /></td>
 286 </tr>
 287 </table>
 288 <hr />
 289 <table width='100%'>
 290 <tr>
 291     <td class='base' width='55%'><img src='/blob.gif' align='top' alt='*' />&nbsp;$Lang::tr{'this field may be blank'}</td>
 292     <td width='40%' align='center'><input type='hidden' name='ACTION' value='$Lang::tr{'add'}' /><input type='submit' name='SUBMIT' value='$buttontext' /></td>
 293     <td width='5%' align='right'>
 294     </td>
 295 </tr>
 296 </table>
 297 </form>
 298 END
 299 ;
 300 &Header::closebox();
 301
 302 # Add visual indicators to column headings to show sort order - EO
 303 my $sortarrow1 = '';
 304 my $sortarrow2 = '';
 305
 306 if ($netsettings{'SORT_ALIASES'} eq 'NAMERev') {
 307         $sortarrow1 = $Header::sortdn;
 308 } elsif ($netsettings{'SORT_ALIASES'} eq 'NAME') {
 309         $sortarrow1 = $Header::sortup;
 310 } elsif ($netsettings{'SORT_ALIASES'} eq 'IPRev') {
 311         $sortarrow2 = $Header::sortdn;
 312 } else {
 313         $sortarrow2 = $Header::sortup;
 314 }
 315
 316 #
 317 # Third box shows the list, in columns
 318 #
 319 # Columns headers may content a link. In this case it must be named in $sortstring
 320 #
 321 &Header::openbox('100%', 'left', $Lang::tr{'current aliases'});
 322 print <<END
 323 <table width='100%'>
 324 <tr>
 325     <td width='50%' align='center'><a href='$ENV{'SCRIPT_NAME'}?NAME'><b>$Lang::tr{'name'}</b></a> $sortarrow1</td>
 326     <td width='45%' align='center'><a href='$ENV{'SCRIPT_NAME'}?IP'><b>$Lang::tr{'alias ip'}</b></a> $sortarrow2</td>
 327     <td width='5%' colspan='3' class='boldbase' align='center'><b>$Lang::tr{'action'}</b></td>
 328 </tr>
 329 END
 330 ;
 331
 332 #
 333 # Print each line of @current list
 334 #
 335 # each data line is splitted into @temp.
 336 #
 337
 338 my $key = 0;
 339 foreach my $line (@current) {
 340     chomp($line);
 341     my @temp = split(/\,/,$line);
 342
 343     #Choose icon for checkbox
 344     my $gif = '';
 345     my $gdesc = '';
 346     if ($temp[1] eq "on") {
 347         $gif = 'on.gif';
 348         $gdesc = $Lang::tr{'click to disable'};
 349     } else {
 350         $gif = 'off.gif';
 351         $gdesc = $Lang::tr{'click to enable'};
 352     }
 353
 354     #Colorize each line
 355     if ($settings{'KEY1'} eq $key) {
 356         print "<tr bgcolor='${Header::colouryellow}'>";
 357     } elsif ($key % 2) {
 358         print "<tr bgcolor='${Header::table2colour}'>";
 359     } else {
 360         print "<tr bgcolor='${Header::table1colour}'>";
 361     }
 362
 363     print <<END
 364 <td align='center'>$temp[2]</td>
 365 <td align='center'>$temp[0]</td>
 366
 367 <td align='center'>
 368 <form method='post' action='$ENV{'SCRIPT_NAME'}'>
 369 <input type='hidden' name='ACTION' value='$Lang::tr{'toggle enable disable'}' />
 370 <input type='image' name='$Lang::tr{'toggle enable disable'}' src='/images/$gif' alt='$gdesc' title='$gdesc' />
 371 <input type='hidden' name='KEY1' value='$key' />
 372 </form>
 373 </td>
 374
 375 <td align='center'>
 376 <form method='post' action='$ENV{'SCRIPT_NAME'}'>
 377 <input type='hidden' name='ACTION' value='$Lang::tr{'edit'}' />
 378 <input type='image' name='$Lang::tr{'edit'}' src='/images/edit.gif' alt='$Lang::tr{'edit'}' title='$Lang::tr{'edit'}' />
 379 <input type='hidden' name='KEY1' value='$key' />
 380 </form>
 381 </td>
 382
 383 <td align='center'>
 384 <form method='post' action='$ENV{'SCRIPT_NAME'}'>
 385 <input type='hidden' name='ACTION' value='$Lang::tr{'remove'}' />
 386 <input type='image' name='$Lang::tr{'remove'}' src='/images/delete.gif' alt='$Lang::tr{'remove'}' title='$Lang::tr{'remove'}' />
 387 <input type='hidden' name='KEY1' value='$key' />
 388 </form>
 389 </td>
 390 </tr>
 391 END
 392 ;
 393     $key++;
 394 }
 395 print "</table>";
 396
 397 # If table contains entries, print 'Key to action icons'
 398 if ($key) {
 399 print <<END
 400 <table>
 401 <tr>
 402     <td class='boldbase'>&nbsp;<b>$Lang::tr{'legend'}:&nbsp;</b></td>
 403     <td><img src='/images/on.gif' alt='$Lang::tr{'click to disable'}' /></td>
 404     <td class='base'>$Lang::tr{'click to disable'}</td>
 405     <td>&nbsp;&nbsp;</td>
 406     <td><img src='/images/off.gif' alt='$Lang::tr{'click to enable'}' /></td>
 407     <td class='base'>$Lang::tr{'click to enable'}</td>
 408     <td>&nbsp;&nbsp;</td>
 409     <td><img src='/images/edit.gif' alt='$Lang::tr{'edit'}' /></td>
 410     <td class='base'>$Lang::tr{'edit'}</td>
 411     <td>&nbsp;&nbsp;</td>
 412     <td><img src='/images/delete.gif' alt='$Lang::tr{'remove'}' /></td>
 413     <td class='base'>$Lang::tr{'remove'}</td>
 414 </tr>
 415 </table>
 416 END
 417 ;
 418 }
 419
 420 &Header::closebox();
 421 &Header::closebigbox();
 422 &Header::closepage();
 423
 424 ## Ouf it's the end !
 425
 426
 427
 428 # Sort the "current" array according to choices
 429 sub SortDataFile
 430 {
 431     our %entries = ();
 432
 433     # Sort pair of record received in $a $b special vars.
 434     # When IP is specified use numeric sort else alpha.
 435     # If sortname ends with 'Rev', do reverse sort.
 436     #
 437     sub fixedleasesort {
 438         my $qs='';             # The sort field specified minus 'Rev'
 439         if (rindex ($netsettings{'SORT_ALIASES'},'Rev') != -1) {
 440             $qs=substr ($netsettings{'SORT_ALIASES'},0,length($netsettings{'SORT_ALIASES'})-3);
 441             if ($qs eq 'IP') {
 442                 my @a = split(/\./,$entries{$a}->{$qs});
 443                 my @b = split(/\./,$entries{$b}->{$qs});
 444                 ($b[0]<=>$a[0]) ||
 445                 ($b[1]<=>$a[1]) ||
 446                 ($b[2]<=>$a[2]) ||
 447                 ($b[3]<=>$a[3]);
 448             } else {
 449                 $entries{$b}->{$qs} cmp $entries{$a}->{$qs};
 450             }
 451         } else { #not reverse
 452             $qs=$netsettings{'SORT_ALIASES'};
 453             if ($qs eq 'IP') {
 454                 my @a = split(/\./,$entries{$a}->{$qs});
 455                 my @b = split(/\./,$entries{$b}->{$qs});
 456                 ($a[0]<=>$b[0]) ||
 457                 ($a[1]<=>$b[1]) ||
 458                 ($a[2]<=>$b[2]) ||
 459                 ($a[3]<=>$b[3]);
 460             } else {
 461                 $entries{$a}->{$qs} cmp $entries{$b}->{$qs};
 462             }
 463         }
 464     }
 465
 466     #Use an associative array (%entries)
 467     my $key = 0;
 468     foreach my $line (@current) {
 469         chomp( $line); #remove newline because can be on field 5 or 6 (addition of REMARK)
 470         my @temp = split (',',$line);
 471
 472         # Build a pair 'Field Name',value for each of the data dataline.
 473         # Each SORTABLE field must have is pair.
 474         # Other data fields (non sortable) can be grouped in one
 475
 476         # Exemple
 477         # F1,F2,F3,F4,F5       only F1 F2 for sorting
 478         # my @record = ('KEY',$key++,
 479         #               'F1',$temp[0],
 480         #               'F2',$temp[1],
 481         #               'DATA',join(',',@temp[2..4])    );  #group remainning values, with separator (,)
 482
 483         # The KEY,key record permits doublons. If removed, then F1 becomes the key without doublon permitted.
 484
 485
 486         my @record = ('KEY',$key++,'IP',$temp[0],'ENABLED',$temp[1],'NAME',$temp[2]);
 487         my $record = {};                                # create a reference to empty hash
 488         %{$record} = @record;                           # populate that hash with @record
 489         $entries{$record->{KEY}} = $record;             # add this to a hash of hashes
 490     }
 491
 492     open(FILE, ">$datafile") or die 'Unable to open aliases file.';
 493
 494     # Each field value is printed , with the newline ! Don't forget separator and order of them.
 495     foreach my $entry (sort fixedleasesort keys %entries) {
 496         print FILE "$entries{$entry}->{IP},$entries{$entry}->{ENABLED},$entries{$entry}->{NAME}\n";
 497     }
 498
 499     close(FILE);
 500     # Reload sorted  @current
 501     open (FILE, "$datafile");
 502     @current = <FILE>;
 503     close (FILE);
 504 }
 505
 506 #
 507 # Build the configuration file for application aliases
 508 #
 509 sub BuildConfiguration {
 510     # Restart service associated with this
 511     system '/usr/local/bin/setaliases';
 512 }