html/cgi-bin/tor.cgi

   1 #!/usr/bin/perl
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2013  IPFire Team  <info@ipfire.org>                          #
   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 use strict;
  23 use Locale::Country;
  24
  25 # enable only the following on debugging purpose
  26 use warnings;
  27 use CGI::Carp 'fatalsToBrowser';
  28
  29 require '/var/ipfire/general-functions.pl';
  30 require "${General::swroot}/lang.pl";
  31 require "${General::swroot}/header.pl";
  32
  33 #workaround to suppress a warning when a variable is used only once
  34 my @dummy = ( ${Header::colouryellow} );
  35 undef (@dummy);
  36
  37 my @bandwidth_limits = (
  38         1000 * 1024, # 1G
  39          500 * 1024,
  40          200 * 1024,
  41          100 * 1024, # 100M
  42           64 * 1024,
  43           50 * 1024,
  44           25 * 1024,
  45           20 * 1024,
  46           16 * 1024,
  47           10 * 1024,
  48            8 * 1024,
  49            4 * 1024,
  50            2 * 1024,
  51                1024, # 1M
  52                 512,
  53                 256,
  54                 128,
  55                  64
  56 );
  57 my @accounting_periods = ('daily', 'weekly', 'monthly');
  58
  59 my $TOR_CONTROL_PORT = 9051;
  60
  61 our %netsettings = ();
  62 &General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
  63
  64 our %settings = ();
  65
  66 $settings{'TOR_ENABLED'} = 'off';
  67 $settings{'TOR_SOCKS_PORT'} = 9050;
  68 $settings{'TOR_EXIT_COUNTRY'} = '';
  69 $settings{'TOR_USE_EXIT_NODES'} = '';
  70 $settings{'TOR_ALLOWED_SUBNETS'} = "$netsettings{'GREEN_NETADDRESS'}\/$netsettings{'GREEN_NETMASK'}";
  71 if (&Header::blue_used()) {
  72         $settings{'TOR_ALLOWED_SUBNETS'} .= ",$netsettings{'BLUE_NETADDRESS'}\/$netsettings{'BLUE_NETMASK'}";
  73 }
  74
  75 $settings{'TOR_RELAY_ENABLED'} = 'off';
  76 $settings{'TOR_RELAY_MODE'} = 'exit';
  77 $settings{'TOR_RELAY_PORT'} = 9001;
  78 $settings{'TOR_RELAY_NOADVERTISE'} = 'off';
  79 $settings{'TOR_RELAY_BANDWIDTH_RATE'} = 0;
  80 $settings{'TOR_RELAY_BANDWIDTH_BURST'} = 0;
  81 $settings{'TOR_RELAY_ACCOUNTING_LIMIT'} = 0;
  82 $settings{'TOR_RELAY_ACCOUNTING_PERIOD'} = 'daily';
  83
  84 $settings{'ACTION'} = '';
  85
  86 my $errormessage = '';
  87 my $warnmessage = '';
  88
  89 &Header::showhttpheaders();
  90
  91 # Load settings from file.
  92 &General::readhash("${General::swroot}/tor/settings", \%settings);
  93
  94 # Get GUI values.
  95 &Header::getcgihash(\%settings);
  96
  97 # Create tor command connection.
  98 our $torctrl = &TorConnect();
  99
 100 # Toggle enable/disable field.
 101 if ($settings{'ACTION'} eq $Lang::tr{'save'}) {
 102         my @temp = split(/[\n,]/,$settings{'TOR_ALLOWED_SUBNETS'});
 103         $settings{'TOR_ALLOWED_SUBNETS'} = "";
 104         foreach (@temp) {
 105                 s/^\s+//g; s/\s+$//g;
 106                 if ($_) {
 107                         unless (&General::validipandmask($_)) {
 108                                 $errormessage = "$Lang::tr{'tor errmsg invalid ip or mask'}: $_";
 109                         }
 110                         $settings{'TOR_ALLOWED_SUBNETS'} .= $_.",";
 111                 }
 112         }
 113
 114         @temp = split(/[\n,]/,$settings{'TOR_USE_EXIT_NODES'});
 115         $settings{'TOR_USE_EXIT_NODES'} = "";
 116         foreach (@temp) {
 117                 s/^\s+//g; s/\s+$//g;
 118                 if ($_) {
 119                         $settings{'TOR_USE_EXIT_NODES'} .= $_.",";
 120                 }
 121         }
 122
 123         if ($errormessage eq '') {
 124                 # Write configuration settings to file.
 125                 &General::writehash("${General::swroot}/tor/settings", \%settings);
 126
 127                 # Update configuration files.
 128                 &BuildConfiguration();
 129         }
 130
 131         # Reset ACTION.
 132         $settings{'ACTION'} = '';
 133 }
 134
 135 &showMainBox();
 136
 137 # Close Tor control connection.
 138 &TorClose($torctrl);
 139
 140 # Functions
 141
 142 sub showMainBox() {
 143         my %checked = ();
 144         my %selected = ();
 145
 146         $checked{'TOR_ENABLED'}{'on'} = '';
 147         $checked{'TOR_ENABLED'}{'off'} = '';
 148         $checked{'TOR_ENABLED'}{$settings{'TOR_ENABLED'}} = 'checked';
 149
 150         $checked{'TOR_RELAY_ENABLED'}{'on'} = '';
 151         $checked{'TOR_RELAY_ENABLED'}{'off'} = '';
 152         $checked{'TOR_RELAY_ENABLED'}{$settings{'TOR_RELAY_ENABLED'}} = 'checked';
 153
 154         &Header::openpage($Lang::tr{'tor configuration'}, 1, '');
 155         &Header::openbigbox('100%', 'left', '', $errormessage);
 156
 157         if ($errormessage) {
 158                 &Header::openbox('100%', 'left', $Lang::tr{'error messages'});
 159                 print "<font class='base'>$errormessage&nbsp;</font>\n";
 160                 &Header::closebox();
 161         }
 162
 163         print "<form method='post' action='$ENV{'SCRIPT_NAME'}'>\n";
 164
 165         &Header::openbox('100%', 'left', $Lang::tr{'tor configuration'});
 166
 167         print <<END;
 168                 <table width='100%'>
 169                         <tr>
 170                                 <td colspan='4' class='base'><b>$Lang::tr{'tor common settings'}</b></td>
 171                         </tr>
 172                         <tr>
 173                                 <td width='25%' class='base'>$Lang::tr{'tor enabled'}:</td>
 174                                 <td width='20%'><input type='checkbox' name='TOR_ENABLED' $checked{'TOR_ENABLED'}{'on'} /></td>
 175                                 <td width='25%' class='base'></td>
 176                                 <td width='30%'></td>
 177                         </tr>
 178                         <tr>
 179                                 <td width='25%' class='base'>$Lang::tr{'tor relay enabled'}:</td>
 180                                 <td width='20%'><input type='checkbox' name='TOR_RELAY_ENABLED' $checked{'TOR_RELAY_ENABLED'}{'on'} /></td>
 181                                 <td width='25%' class='base'></td>
 182                                 <td width='30%'></td>
 183                         </tr>
 184                 </table>
 185 END
 186
 187         &Header::closebox();
 188
 189         if ($settings{'TOR_ENABLED'} eq 'on') {
 190                 my @temp = split(",", $settings{'TOR_ALLOWED_SUBNETS'});
 191                 $settings{'TOR_ALLOWED_SUBNETS'} = join("\n", @temp);
 192
 193                 @temp = split(",", $settings{'TOR_USE_EXIT_NODES'});
 194                 $settings{'TOR_USE_EXIT_NODES'} = join("\n", @temp);
 195
 196                 &Header::openbox('100%', 'left', $Lang::tr{'tor configuration'});
 197
 198                 print <<END;
 199                         <table width='100%'>
 200                                 <tr>
 201                                         <td width='25%' class='base'>$Lang::tr{'tor socks port'}:</td>
 202                                         <td width='30%'><input type='text' name='TOR_SOCKS_PORT' value='$settings{'TOR_SOCKS_PORT'}' size='5' /></td>
 203                                         <td width='50%' class='base' colspan='2'></td>
 204                                 </tr>
 205                         </table>
 206
 207                         <hr size='1'>
 208
 209                         <table width='100%'>
 210                                 <tr>
 211                                         <td colspan='4' class='base'><b>$Lang::tr{'tor acls'}</b></td>
 212                                 </tr>
 213                                 <tr>
 214                                         <td colspan='2' class='base' width='55%'>
 215                                                 $Lang::tr{'tor allowed subnets'}:
 216                                         </td>
 217                                         <td colspan='2' width='45%'></td>
 218                                 </tr>
 219                                 <tr>
 220                                         <td colspan='2' class='base' width='55%'>
 221                                                 <textarea name='TOR_ALLOWED_SUBNETS' cols='32' rows='3' wrap='off'>$settings{'TOR_ALLOWED_SUBNETS'}</textarea>
 222                                         </td>
 223                                         <td colspan='2' width='45%'></td>
 224                                 </tr>
 225                         </table>
 226
 227                         <hr size='1'>
 228
 229                         <table width='100%'>
 230                                 <tr>
 231                                         <td colspan='4' class='base'><b>$Lang::tr{'tor exit nodes'}</b></td>
 232                                 </tr>
 233                                 <tr>
 234                                         <td colspan='2' class='base' width='55%'></td>
 235                                         <td colspan='2' class='base' width='45%'>$Lang::tr{'tor use exit nodes'}:</td>
 236                                 </tr>
 237                                 <tr>
 238                                         <td width='50%' colspan='2'>
 239                                                 <select name='TOR_EXIT_COUNTRY'>
 240                                                         <option value=''>- $Lang::tr{'tor exit country any'} -</option>
 241 END
 242
 243                         my @country_names = Locale::Country::all_country_names();
 244                         foreach my $country_name (sort @country_names) {
 245                                 my $country_code = Locale::Country::country2code($country_name);
 246                                 $country_code = uc($country_code);
 247                                 print "<option value='$country_code'>$country_name ($country_code)</option>\n";
 248                         }
 249
 250                 print <<END;
 251                                                 </select>
 252                                         </td>
 253                                         <td colspan='2'>
 254                                                 <textarea name='TOR_USE_EXIT_NODES' cols='32' rows='3' wrap='off'>$settings{'TOR_USE_EXIT_NODES'}</textarea>
 255                                         </td>
 256                                 </tr>
 257                         </table>
 258 END
 259
 260                 &Header::closebox();
 261         }
 262
 263         if ($settings{'TOR_RELAY_ENABLED'} eq 'on') {
 264                 $checked{'TOR_RELAY_NOADVERTISE'}{'on'} = '';
 265                 $checked{'TOR_RELAY_NOADVERTISE'}{'off'} = '';
 266                 $checked{'TOR_RELAY_NOADVERTISE'}{$settings{'TOR_RELAY_NOADVERTISE'}} = 'checked';
 267
 268                 $selected{'TOR_RELAY_MODE'}{'bridge'} = '';
 269                 $selected{'TOR_RELAY_MODE'}{'exit'} = '';
 270                 $selected{'TOR_RELAY_MODE'}{'private-bridge'} = '';
 271                 $selected{'TOR_RELAY_MODE'}{'relay'} = '';
 272                 $selected{'TOR_RELAY_MODE'}{$settings{'TOR_RELAY_MODE'}} = 'selected';
 273
 274                 $selected{'TOR_RELAY_BANDWIDTH_RATE'}{'0'} = '';
 275                 foreach (@bandwidth_limits) {
 276                         $selected{'TOR_RELAY_BANDWIDTH_RATE'}{$_} = '';
 277                 }
 278                 $selected{'TOR_RELAY_BANDWIDTH_RATE'}{$settings{'TOR_RELAY_BANDWIDTH_RATE'}} = 'selected';
 279
 280                 $selected{'TOR_RELAY_BANDWIDTH_BURST'}{'0'} = '';
 281                 foreach (@bandwidth_limits) {
 282                         $selected{'TOR_RELAY_BANDWIDTH_BURST'}{$_} = '';
 283                 }
 284                 $selected{'TOR_RELAY_BANDWIDTH_BURST'}{$settings{'TOR_RELAY_BANDWIDTH_BURST'}} = 'selected';
 285
 286                 foreach (@accounting_periods) {
 287                         $selected{'TOR_RELAY_ACCOUNTING_PERIOD'}{$_} = '';
 288                 }
 289                 $selected{'TOR_RELAY_ACCOUNTING_PERIOD'}{$settings{'TOR_RELAY_ACCOUNTING_PERIOD'}} = 'selected';
 290
 291                 &Header::openbox('100%', 'left', $Lang::tr{'tor relay configuration'});
 292
 293                 print <<END;
 294                         <table width='100%'>
 295                                 <tr>
 296                                         <td width='25%' class='base'>$Lang::tr{'tor relay mode'}:</td>
 297                                         <td width='30%'>
 298                                                 <select name='TOR_RELAY_MODE'>
 299                                                         <option value='exit' $selected{'TOR_RELAY_MODE'}{'exit'}>$Lang::tr{'tor relay mode exit'}</option>
 300                                                         <option value='relay' $selected{'TOR_RELAY_MODE'}{'relay'}>$Lang::tr{'tor relay mode relay'}</option>
 301                                                         <option value='bridge' $selected{'TOR_RELAY_MODE'}{'bridge'}>$Lang::tr{'tor relay mode bridge'}</option>
 302                                                         <option value='private-bridge' $selected{'TOR_RELAY_MODE'}{'private-bridge'}>$Lang::tr{'tor relay mode private bridge'}</option>
 303                                                 </select>
 304                                         </td>
 305                                         <td width='25%' class='base'>$Lang::tr{'tor relay port'}:</td>
 306                                         <td width='20%'>
 307                                                 <input type='text' name='TOR_RELAY_PORT' value='$settings{'TOR_RELAY_PORT'}' size='5' />
 308                                         </td>
 309                                 </tr>
 310                                 <tr>
 311                                         <td width='25%' class='base'>$Lang::tr{'tor relay address'}:&nbsp;<img src='/blob.gif' alt='*' /></td>
 312                                         <td width='30%'>
 313                                                 <input type='text' name='TOR_RELAY_ADDRESS' value='$settings{'TOR_RELAY_ADDRESS'}' />
 314                                         </td>
 315                                         <td width='25%' class='base'>$Lang::tr{'tor do not advertise relay'}:</td>
 316                                         <td width='20%'>
 317                                                 <input type='checkbox' name='TOR_RELAY_NOADVERTISE' $checked{'TOR_RELAY_NOADVERTISE'}{'on'} />
 318                                         </td>
 319                                 </tr>
 320                                 <tr>
 321                                         <td width='25%' class='base'>$Lang::tr{'tor relay nickname'}:&nbsp;<img src='/blob.gif' alt='*' /></td>
 322                                         <td width='30%'>
 323                                                 <input type='text' name='TOR_RELAY_NICKNAME' value='$settings{'TOR_RELAY_NICKNAME'}' />
 324                                         </td>
 325                                         <td colspan='2'></td>
 326                                 </tr>
 327                                 <tr>
 328                                         <td width='25%' class='base'>$Lang::tr{'tor contact info'}:&nbsp;<img src='/blob.gif' alt='*' /></td>
 329                                         <td width='75%' colspan='3'>
 330                                                 <input type='text' name='TOR_RELAY_CONTACT_INFO' value='$settings{'TOR_RELAY_CONTACT_INFO'}' size='60' />
 331                                         </td>
 332                                 </tr>
 333                         </table>
 334
 335                         <hr size='1'>
 336
 337                         <table width='100%'>
 338                                 <tr>
 339                                         <td colspan='4' class='base'><b>$Lang::tr{'tor bandwidth settings'}</b></td>
 340                                 </tr>
 341                                 <tr>
 342                                         <td width='25%' class='base'>$Lang::tr{'tor bandwidth rate'}:</td>
 343                                         <td width='30%' class='base'>
 344                                                 <select name='TOR_RELAY_BANDWIDTH_RATE'>
 345 END
 346
 347                 foreach (@bandwidth_limits) {
 348                         if ($_ >= 1024) {
 349                                 print "<option value='$_' $selected{'TOR_RELAY_BANDWIDTH_RATE'}{$_}>". $_ / 1024 ." MBit/s</option>\n";
 350                         } else {
 351                                 print "<option value='$_' $selected{'TOR_RELAY_BANDWIDTH_RATE'}{$_}>$_ kBit/s</option>\n";
 352                         }
 353                 }
 354
 355                 print <<END;
 356                                                         <option value='0' $selected{'TOR_RELAY_BANDWIDTH_RATE'}{'0'}>$Lang::tr{'tor bandwidth unlimited'}</option>
 357                                                 </select>
 358                                         </td>
 359                                         <td width='25%' class='base'>$Lang::tr{'tor accounting limit'}:</td>
 360                                         <td width='20%'>
 361                                                 <input type='text' name='TOR_RELAY_ACCOUNTING_LIMIT' value='$settings{'TOR_RELAY_ACCOUNTING_LIMIT'}' size='12' />
 362                                         </td>
 363                                 </tr>
 364                                 <tr>
 365                                         <td width='25%' class='base'>$Lang::tr{'tor bandwidth burst'}:</td>
 366                                         <td width='20%' class='base'>
 367                                                 <select name='TOR_RELAY_BANDWIDTH_BURST'>
 368 END
 369
 370                 foreach (@bandwidth_limits) {
 371                         if ($_ >= 1024) {
 372                                 print "<option value='$_' $selected{'TOR_RELAY_BANDWIDTH_BURST'}{$_}>". $_ / 1024 ." MBit/s</option>\n";
 373                         } else {
 374                                 print "<option value='$_' $selected{'TOR_RELAY_BANDWIDTH_BURST'}{$_}>$_ kBit/s</option>\n";
 375                         }
 376                 }
 377                 print <<END;
 378                                                         <option value='0' $selected{'TOR_RELAY_BANDWIDTH_BURST'}{'0'}>$Lang::tr{'tor bandwidth unlimited'}</option>
 379                                                 </select>
 380                                         </td>
 381                                         <td width='25%' class='base'>$Lang::tr{'tor accounting period'}:</td>
 382                                         <td width='20%'>
 383                                                 <select name='TOR_RELAY_ACCOUNTING_PERIOD'>
 384 END
 385
 386                 foreach (@accounting_periods) {
 387                         print "<option value='$_' $selected{'TOR_RELAY_ACCOUNTING_PERIOD'}{$_}>$Lang::tr{'tor accounting period '.$_}</option>";
 388                 }
 389
 390                 print <<END;
 391                                                 </select>
 392                                         </td>
 393                                 </tr>
 394                         </table>
 395 END
 396
 397                 &Header::closebox();
 398         }
 399
 400         print <<END;
 401                 <table width='100%'>
 402                         <tr>
 403                                 <td>
 404                                         <img src='/blob.gif' align='top' alt='*' />&nbsp;<font class='base'>$Lang::tr{'this field may be blank'}</font>
 405                                 </td>
 406                                 <td align='right'>&nbsp;</td>
 407                         </tr>
 408                 </table>
 409
 410                 <hr>
 411
 412                 <table width='100%'>
 413                         <tr>
 414                                 <td>&nbsp;</td>
 415                                 <td align='center'><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td>
 416                                 <td>&nbsp;</td>
 417                         </tr>
 418                 </table>
 419 END
 420
 421         # If we have a control connection, show the stats.
 422         if ($torctrl) {
 423                 &Header::openbox('100%', 'left', $Lang::tr{'tor stats'});
 424
 425                 my @traffic = &TorTrafficStats($torctrl);
 426
 427                 if (@traffic) {
 428                         print <<END;
 429                                 <table width='100%'>
 430 END
 431
 432                 if ($settings{'TOR_RELAY_ENABLED'} eq 'on') {
 433                         my $fingerprint = &TorRelayFingerprint($torctrl);
 434                         if ($fingerprint) {
 435                                 print <<END;
 436                                         <tr>
 437                                                 <td width='40%' class='base'>$Lang::tr{'tor relay fingerprint'}:</td>
 438                                                 <td width='60%'>
 439                                                         <a href='https://atlas.torproject.org/#details/$fingerprint' target='_blank'>$fingerprint</a>
 440                                                 </td>
 441                                         </tr>
 442 END
 443                         }
 444                 }
 445
 446                 my $address = TorGetInfo($torctrl, "address");
 447                 if ($address) {
 448                         print <<END;
 449                                 <tr>
 450                                         <td width='40%' class='base'>$Lang::tr{'tor relay external address'}:</td>
 451                                         <td width='60%'>$address</td>
 452                                 </tr>
 453 END
 454                 }
 455
 456                 print <<END;
 457                                         <tr>
 458                                                 <td width='40%'>$Lang::tr{'tor traffic read written'}:</td>
 459 END
 460                         print "<td width='60%'>" . &FormatBytes($traffic[0]) ."/". &FormatBytes($traffic[1]) . "</td>";
 461                         print <<END;
 462                                         </tr>
 463                                 </table>
 464 END
 465                 }
 466
 467                 my $accounting = &TorAccountingStats($torctrl);
 468                 if ($accounting) {
 469                         print <<END;
 470                                 <table width='100%'>
 471                                         <tr>
 472                                                 <td colspan='2' class='base'><b>$Lang::tr{'tor accounting'}</b></td>
 473                                         </tr>
 474 END
 475
 476                         if ($accounting->{'hibernating'} eq "hard") {
 477                                 print <<END;
 478                                         <tr>
 479                                                 <td class='base' colspan='2' bgcolor="$Header::colourred" align='center'>
 480                                                         <font color='white'>$Lang::tr{'tor traffic limit hard'}</font>
 481                                                 </td>
 482                                         </tr>
 483 END
 484                         } elsif ($accounting->{'hibernating'} eq "soft") {
 485                                 print <<END;
 486                                         <tr>
 487                                                 <td class='base' colspan='2' bgcolor="$Header::colourorange" align='center'>
 488                                                         <font color='white'>$Lang::tr{'tor traffic limit soft'}</font>
 489                                                 </td>
 490                                         </tr>
 491 END
 492                         }
 493
 494                         print <<END;
 495                                         <tr>
 496                                                 <td width='40%' class='base'>$Lang::tr{'tor accounting interval'}</td>
 497                                                 <td width='60%'>
 498                                                         $accounting->{'interval-start'} - $accounting->{'interval-end'}
 499                                                 </td>
 500                                         </tr>
 501                                         <tr>
 502                                                 <td width='40%' class='base'>$Lang::tr{'tor accounting bytes'}</td>
 503                                                 <td width='60%'>
 504 END
 505
 506                         print &FormatBytes($accounting->{'bytes_read'}) . "/" . &FormatBytes($accounting->{'bytes_written'});
 507                         print " (" . &FormatBytes($accounting->{'bytes-left_read'}) . "/" . &FormatBytes($accounting->{'bytes-left_written'});
 508                         print " $Lang::tr{'tor accounting bytes left'})";
 509
 510                         print <<END;
 511                                                 </td>
 512                                         </tr>
 513                                 </table>
 514 END
 515                 }
 516
 517                 my @nodes = &TorORConnStatus($torctrl);
 518                 if (@nodes) {
 519                         print <<END;
 520                                 <table width='100%'>
 521                                         <tr>
 522                                                 <td colspan='3' class='base'><b>$Lang::tr{'tor connected relays'}</b></td>
 523                                         </tr>
 524 END
 525
 526                         foreach my $node (@nodes) {
 527                                 print <<END;
 528                                         <tr>
 529                                                 <td width='40%'>
 530                                                         <a href='https://atlas.torproject.org/#details/$node->{'fingerprint'}' target='_blank'>
 531                                                                 $node->{'name'}
 532                                                         </a>
 533                                                 </td>
 534                                                 <td width='30%'>
 535 END
 536
 537                                 if (exists($node->{'country_code'})) {
 538                                                 print "<a href='country.cgi#$node->{'country_code'}'><img src='/images/flags/$node->{'country_code'}.png' border='0' align='absmiddle' alt='$node->{'country_code'}'></a>";
 539                                 }
 540
 541                                 print <<END;
 542                                                         <a href='ipinfo.cgi?ip=$node->{'address'}'>$node->{'address'}</a>:$node->{'port'}
 543                                                 </td>
 544                                                 <td width='30%' align='right'>
 545                                                         ~$node->{'bandwidth_string'}
 546                                                 </td>
 547                                         </tr>
 548 END
 549                         }
 550                         print "</table>";
 551                 }
 552
 553                 &Header::closebox();
 554         }
 555
 556         print "</form>\n";
 557
 558         &Header::closebigbox();
 559         &Header::closepage();
 560 }
 561
 562 sub BuildConfiguration() {
 563         my %settings = ();
 564         &General::readhash("${General::swroot}/tor/settings", \%settings);
 565
 566         my $torrc = "${General::swroot}/tor/torrc";
 567
 568         open(FILE, ">$torrc");
 569
 570         # Global settings.
 571         print FILE "ControlPort $TOR_CONTROL_PORT\n";
 572
 573         if ($settings{'TOR_ENABLED'} eq 'on') {
 574                 my $strict_nodes = 0;
 575
 576                 print FILE "SocksPort 0.0.0.0:$settings{'TOR_SOCKS_PORT'}\n";
 577
 578                 my @subnets = split(",", $settings{'TOR_ALLOWED_SUBNETS'});
 579                 foreach (@subnets) {
 580                         print FILE "SocksPolicy accept $_\n" if (&General::validipandmask($_));
 581                 }
 582                 print FILE "SocksPolicy reject *\n" if (@subnets);
 583
 584                 if ($settings{'TOR_EXIT_COUNTRY'} ne '') {
 585                         $strict_nodes = 1;
 586
 587                         print FILE "ExitNodes {$settings{'TOR_EXIT_COUNTRY'}}\n";
 588                 }
 589
 590                 if ($settings{'TOR_USE_EXIT_NODES'} ne '') {
 591                         $strict_nodes = 1;
 592
 593                         my @nodes = split(",", $settings{'TOR_USE_EXIT_NODES'});
 594                         foreach (@nodes) {
 595                                 print FILE "ExitNode $_\n";
 596                         }
 597                 }
 598
 599                 if ($strict_nodes > 0) {
 600                         print FILE "StrictNodes 1\n";
 601                 }
 602         }
 603
 604         if ($settings{'TOR_RELAY_ENABLED'} eq 'on') {
 605                 # Reject access to private networks.
 606                 print FILE "ExitPolicyRejectPrivate 1\n";
 607
 608                 print FILE "ORPort $settings{'TOR_RELAY_PORT'}";
 609                 if ($settings{'TOR_RELAY_NOADVERTISE'} eq 'on') {
 610                         print FILE " NoAdvertise";
 611                 }
 612                 print FILE "\n";
 613
 614                 if ($settings{'TOR_RELAY_ADDRESS'} ne '') {
 615                         print FILE "Address $settings{'TOR_RELAY_ADDRESS'}\n";
 616                 }
 617
 618                 if ($settings{'TOR_RELAY_NICKNAME'} ne '') {
 619                         print FILE "Nickname $settings{'TOR_RELAY_NICKNAME'}\n";
 620                 }
 621
 622                 if ($settings{'TOR_RELAY_CONTACT_INFO'} ne '') {
 623                         print FILE "ContactInfo $settings{'TOR_RELAY_CONTACT_INFO'}\n";
 624                 }
 625
 626                 # Limit to bridge mode.
 627                 my $is_bridge = 0;
 628
 629                 if ($settings{'TOR_RELAY_MODE'} eq 'bridge') {
 630                         $is_bridge++;
 631
 632                 # Private bridge.
 633                 } elsif ($settings{'TOR_RELAY_MODE'} eq 'private-bridge') {
 634                         $is_bridge++;
 635
 636                         print FILE "PublishServerDescriptor 0\n";
 637
 638                 # Exit node.
 639                 } elsif ($settings{'TOR_RELAY_MODE'} eq 'exit') {
 640                         print FILE "ExitPolicy accept *:*\n";
 641
 642                 # Relay only.
 643                 } elsif ($settings{'TOR_RELAY_MODE'} eq 'relay') {
 644                         print FILE "ExitPolicy reject *:*\n";
 645                 }
 646
 647                 if ($is_bridge > 0) {
 648                         print FILE "BridgeRelay 1\n";
 649                         print FILE "Exitpolicy reject *:*\n";
 650                 }
 651
 652                 if ($settings{'TOR_RELAY_BANDWIDTH_RATE'} > 0) {
 653                         print FILE "RelayBandwidthRate ";
 654                         print FILE $settings{'TOR_RELAY_BANDWIDTH_RATE'} / 8;
 655                         print FILE " KB\n";
 656
 657                         if ($settings{'TOR_RELAY_BANDWIDTH_BURST'} > 0) {
 658                                 print FILE "RelayBandwidthBurst ";
 659                                 print FILE $settings{'TOR_RELAY_BANDWIDTH_BURST'} / 8;
 660                                 print FILE " KB\n";
 661                         }
 662                 }
 663
 664                 if ($settings{'TOR_RELAY_ACCOUNTING_LIMIT'} > 0) {
 665                         print FILE "AccountingMax ".$settings{'TOR_RELAY_ACCOUNTING_LIMIT'}." MB\n";
 666
 667                         if ($settings{'TOR_RELAY_ACCOUNTING_PERIOD'} eq 'daily') {
 668                                 print FILE "AccountingStart day 00:00\n";
 669                         } elsif ($settings{'TOR_RELAY_ACCOUNTING_PERIOD'} eq 'weekly') {
 670                                 print FILE "AccountingStart week 1 00:00\n";
 671                         } elsif ($settings{'TOR_RELAY_ACCOUNTING_PERIOD'} eq 'monthly') {
 672                                 print FILE "AccountingStart month 1 00:00\n";
 673                         }
 674                 }
 675         }
 676
 677         close(FILE);
 678
 679         # Restart the service.
 680         if (($settings{'TOR_ENABLED'} eq 'on') || ($settings{'TOR_RELAY_ENABLED'} eq 'on')) {
 681                 system("/usr/local/bin/torctrl restart");
 682         } else {
 683                 system("/usr/local/bin/torctrl stop");
 684         }
 685 }
 686
 687 sub TorConnect() {
 688         my $socket = new IO::Socket::INET(
 689                 Proto => 'tcp', PeerAddr => '127.0.0.1', PeerPort => $TOR_CONTROL_PORT,
 690         ) or return;
 691
 692         $socket->autoflush(1);
 693
 694         # Authenticate.
 695         &TorSendCommand($socket, "AUTHENTICATE");
 696
 697         return $socket;
 698 }
 699
 700 sub TorSendCommand() {
 701         my ($socket, $cmd) = @_;
 702
 703         # Replace line ending with \r\n.
 704         chomp $cmd;
 705         $cmd .= "\r\n";
 706
 707         $socket->send($cmd);
 708
 709         my @output = ();
 710         while (my $line = <$socket>) {
 711                 # Skip empty lines.
 712                 if ($line =~ /^.\r\n$/) {
 713                         next;
 714                 }
 715
 716                 # Command has been successfully executed.
 717                 if ($line =~ /250 OK/) {
 718                         last;
 719
 720                 # Error.
 721                 } elsif ($line =~ /^5\d+/) {
 722                         last;
 723
 724                 } else {
 725                         # Remove line endings.
 726                         $line =~ s/\r\n$//;
 727
 728                         push(@output, $line);
 729                 }
 730         }
 731
 732         return @output;
 733 }
 734
 735 sub TorSendCommandOneLine() {
 736         my ($tor, $cmd) = @_;
 737
 738         my @output = &TorSendCommand($tor, $cmd);
 739         return $output[0];
 740 }
 741
 742 sub TorGetInfo() {
 743         my ($tor, $cmd) = @_;
 744
 745         my $output = &TorSendCommandOneLine($tor, "GETINFO ".$cmd);
 746
 747         my ($key, $value) = split("=", $output);
 748         return $value;
 749 }
 750
 751 sub TorClose() {
 752         my $socket = shift;
 753
 754         if ($socket) {
 755                 $socket->shutdown(2);
 756         }
 757 }
 758
 759 sub TorTrafficStats() {
 760         my $tor = shift;
 761
 762         my $output_read    = &TorGetInfo($tor, "traffic/read");
 763         my $output_written = &TorGetInfo($tor, "traffic/written");
 764
 765         return ($output_read, $output_written);
 766 }
 767
 768 sub TorRelayFingerprint() {
 769         my $tor = shift;
 770
 771         return &TorGetInfo($tor, "fingerprint");
 772 }
 773
 774 sub TorORConnStatus() {
 775         my $tor = shift;
 776         my @nodes = ();
 777
 778         my @output = &TorSendCommand($tor, "GETINFO orconn-status");
 779         foreach (@output) {
 780                 $_ =~ s/^250[\+-]orconn-status=//;
 781                 next if ($_ eq "");
 782                 last if ($_ eq ".");
 783                 next unless ($_ =~ /^\$/);
 784
 785                 my @line = split(" ", $_);
 786                 my @node = split(/[=~]/, $line[0]);
 787
 788                 my $node = &TorNodeDescription($tor, $node[0]);
 789                 if ($node) {
 790                         push(@nodes, $node);
 791                 }
 792         }
 793
 794         # Sort by names.
 795         @nodes = sort { $a->{'name'} cmp $b->{'name'} } @nodes;
 796
 797         return @nodes;
 798 }
 799
 800 sub TorNodeDescription() {
 801         my ($tor, $fingerprint) = @_;
 802         $fingerprint =~ s/\$//;
 803
 804         my $node = {
 805                 fingerprint  => $fingerprint,
 806                 exit_node    => 0,
 807         };
 808
 809         my @output = &TorSendCommand($tor, "GETINFO ns/id/$node->{'fingerprint'}");
 810
 811         foreach (@output) {
 812                 # Router
 813                 if ($_ =~ /^r (\w+) (.*) (\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}) (\d+)/) {
 814                         $node->{'name'}    = $1;
 815                         $node->{'address'} = $3;
 816                         $node->{'port'}    = $4;
 817
 818                         my $country_code = &TorGetInfo($tor, "ip-to-country/$node->{'address'}");
 819                         $node->{'country_code'} = $country_code;
 820
 821                 # Flags
 822                 } elsif ($_ =~ /^s (.*)$/) {
 823                         $node->{'flags'} = split(" ", $1);
 824
 825                         foreach my $flag ($node->{'flags'}) {
 826                                 if ($flag eq "Exit") {
 827                                         $node->{'exit_node'}++;
 828                                 }
 829                         }
 830
 831                 # Bandwidth
 832                 } elsif ($_ =~ /^w Bandwidth=(\d+)/) {
 833                         $node->{'bandwidth'} = $1 * 8;
 834                         $node->{'bandwidth_string'} = &FormatBitsPerSecond($node->{'bandwidth'});
 835                 }
 836         }
 837
 838         if (exists($node->{'name'})) {
 839                 return $node;
 840         }
 841 }
 842
 843 sub TorAccountingStats() {
 844         my $tor = shift;
 845         my $ret = {};
 846
 847         my $enabled = &TorGetInfo($tor, "accounting/enabled");
 848         if ($enabled ne '1') {
 849                 return;
 850         }
 851
 852         my @cmds = ("hibernating", "interval-start", "interval-end");
 853         foreach (@cmds) {
 854                 $ret->{$_} = &TorGetInfo($tor, "accounting/$_");
 855         }
 856
 857         my @cmds = ("bytes", "bytes-left");
 858         foreach (@cmds) {
 859                 my $output = &TorGetInfo($tor, "accounting/$_");
 860                 my @bytes = split(" ", $output);
 861
 862                 $ret->{$_."_read"}    = $bytes[0];
 863                 $ret->{$_."_written"} = $bytes[1];
 864         }
 865
 866         return $ret;
 867 }
 868
 869 sub FormatBytes() {
 870         my $bytes = shift;
 871
 872         my @units = ("B", "KB", "MB", "GB", "TB");
 873         my $units_index = 0;
 874
 875         while (($units_index <= $#units) && ($bytes >= 1024)) {
 876                 $units_index++;
 877                 $bytes /= 1024;
 878         }
 879
 880         return sprintf("%.2f %s", $bytes, $units[$units_index]);
 881 }
 882
 883 sub FormatBitsPerSecond() {
 884         my $bits = shift;
 885
 886         my @units = ("Bit/s", "KBit/s", "MBit/s", "GBit/s", "TBit/s");
 887         my $units_index = 0;
 888
 889         while (($units_index <= $#units) && ($bits >= 1024)) {
 890                 $units_index++;
 891                 $bits /= 1024;
 892         }
 893
 894         return sprintf("%.2f %s", $bits, $units[$units_index]);
 895 }