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                 160
  55 );
  56 my @accounting_periods = ('daily', 'weekly', 'monthly');
  57
  58 my $TOR_CONTROL_PORT = 9051;
  59
  60 my $string=();
  61 my $memory=();
  62 my @memory=();
  63 my @pid=();
  64 my @tor=();
  65 sub daemonstats
  66 {
  67         $memory = 0;
  68         # for pid and memory
  69         open(FILE, '/usr/local/bin/addonctrl tor status | ');
  70         @tor = <FILE>;
  71         close(FILE);
  72         $string = join("", @tor);
  73         $string =~ s/[a-z_]//gi;
  74         $string =~ s/\[[0-1]\;[0-9]+//gi;
  75         $string =~ s/[\(\)\.]//gi;
  76         $string =~ s/  //gi;
  77         $string =~ s/\e//gi;
  78         @pid = split(/\s/,$string);
  79         if (open(FILE, "/proc/$pid[0]/statm")){
  80                 my $temp = <FILE>;
  81                 @memory = split(/ /,$temp);
  82                 close(FILE);
  83                 }
  84         $memory+=$memory[0];
  85 }
  86 daemonstats();
  87
  88 our %netsettings = ();
  89 &General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
  90
  91 our %color = ();
  92 our %mainsettings = ();
  93 &General::readhash("${General::swroot}/main/settings", \%mainsettings);
  94 &General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color);
  95
  96 our %settings = ();
  97
  98 $settings{'TOR_ENABLED'} = 'off';
  99 $settings{'TOR_SOCKS_PORT'} = 9050;
 100 $settings{'TOR_EXIT_COUNTRY'} = '';
 101 $settings{'TOR_USE_EXIT_NODES'} = '';
 102 $settings{'TOR_ALLOWED_SUBNETS'} = "$netsettings{'GREEN_NETADDRESS'}\/$netsettings{'GREEN_NETMASK'}";
 103 if (&Header::blue_used()) {
 104         $settings{'TOR_ALLOWED_SUBNETS'} .= ",$netsettings{'BLUE_NETADDRESS'}\/$netsettings{'BLUE_NETMASK'}";
 105 }
 106
 107 $settings{'TOR_RELAY_ENABLED'} = 'off';
 108 $settings{'TOR_RELAY_MODE'} = 'exit';
 109 $settings{'TOR_RELAY_ADDRESS'} = '';
 110 $settings{'TOR_RELAY_PORT'} = 9001;
 111 $settings{'TOR_RELAY_NICKNAME'} = '';
 112 $settings{'TOR_RELAY_CONTACT_INFO'} = '';
 113 $settings{'TOR_RELAY_BANDWIDTH_RATE'} = 0;
 114 $settings{'TOR_RELAY_BANDWIDTH_BURST'} = 0;
 115 $settings{'TOR_RELAY_ACCOUNTING_LIMIT'} = 0;
 116 $settings{'TOR_RELAY_ACCOUNTING_PERIOD'} = 'daily';
 117
 118 $settings{'ACTION'} = '';
 119
 120 my $errormessage = '';
 121 my $warnmessage = '';
 122
 123 &Header::showhttpheaders();
 124
 125 # Get GUI values.
 126 &Header::getcgihash(\%settings);
 127
 128 # Create tor command connection.
 129 our $torctrl = &TorConnect();
 130
 131 # Toggle enable/disable field.
 132 if ($settings{'ACTION'} eq $Lang::tr{'save'}) {
 133         if ($settings{'TOR_RELAY_NICKNAME'} ne '') {
 134                 if ($settings{'TOR_RELAY_NICKNAME'} !~ /^[a-zA-Z0-9]+$/) {
 135                         $errormessage = "$Lang::tr{'tor errmsg invalid relay name'}: $settings{'TOR_RELAY_NICKNAME'}";
 136                 }
 137         }
 138
 139         if (!&General::validport($settings{'TOR_SOCKS_PORT'})) {
 140                 $errormessage = "$Lang::tr{'tor errmsg invalid socks port'}: $settings{'TOR_SOCKS_PORT'}";
 141         }
 142
 143         if (!&General::validport($settings{'TOR_RELAY_PORT'})) {
 144                 $errormessage = "$Lang::tr{'tor errmsg invalid relay port'}: $settings{'TOR_RELAY_PORT'}";
 145         }
 146
 147         if ($settings{'TOR_RELAY_ADDRESS'} ne '') {
 148                 if ((!&General::validfqdn($settings{'TOR_RELAY_ADDRESS'})) && (!&General::validip($settings{'TOR_RELAY_ADDRESS'}))) {
 149                         $errormessage = "$Lang::tr{'tor errmsg invalid relay address'}: $settings{'TOR_RELAY_ADDRESS'}";
 150                 }
 151         }
 152
 153         if ($settings{'TOR_RELAY_ACCOUNTING_LIMIT'} !~ /^\d+$/) {
 154                 $errormessage = "$Lang::tr{'tor errmsg invalid accounting limit'}: $settings{'TOR_RELAY_ACCOUNTING_LIMIT'}";
 155         }
 156
 157         my @temp = split(/[\n,]/,$settings{'TOR_ALLOWED_SUBNETS'});
 158         $settings{'TOR_ALLOWED_SUBNETS'} = "";
 159         foreach (@temp) {
 160                 s/^\s+//g; s/\s+$//g;
 161                 if ($_) {
 162                         unless (&General::validipandmask($_)) {
 163                                 $errormessage = "$Lang::tr{'tor errmsg invalid ip or mask'}: $_";
 164                         }
 165                         $settings{'TOR_ALLOWED_SUBNETS'} .= $_.",";
 166                 }
 167         }
 168
 169         @temp = split(/[\n,]/,$settings{'TOR_USE_EXIT_NODES'});
 170         $settings{'TOR_USE_EXIT_NODES'} = "";
 171         foreach (@temp) {
 172                 s/^\s+//g; s/\s+$//g;
 173                 if ($_) {
 174                         $settings{'TOR_USE_EXIT_NODES'} .= $_.",";
 175                 }
 176         }
 177
 178         # Burst bandwidth must be less or equal to bandwidth rate.
 179         if ($settings{'TOR_RELAY_BANDWIDTH_RATE'} == 0) {
 180                 $settings{'TOR_RELAY_BANDWIDTH_BURST'} = 0;
 181
 182         } elsif ($settings{'TOR_RELAY_BANDWIDTH_BURST'} < $settings{'TOR_RELAY_BANDWIDTH_RATE'}) {
 183                 $settings{'TOR_RELAY_BANDWIDTH_BURST'} = $settings{'TOR_RELAY_BANDWIDTH_RATE'};
 184         }
 185
 186         if ($errormessage eq '') {
 187                 # Write configuration settings to file.
 188                 &General::writehash("${General::swroot}/tor/settings", \%settings);
 189
 190                 # Update configuration files.
 191                 &BuildConfiguration();
 192         }
 193 } else {
 194         # Load settings from file.
 195         &General::readhash("${General::swroot}/tor/settings", \%settings);
 196 }
 197
 198 &showMainBox();
 199
 200 # Close Tor control connection.
 201 &TorClose($torctrl);
 202
 203 # Functions
 204
 205 sub showMainBox() {
 206         my %checked = ();
 207         my %selected = ();
 208
 209         $checked{'TOR_ENABLED'}{'on'} = '';
 210         $checked{'TOR_ENABLED'}{'off'} = '';
 211         $checked{'TOR_ENABLED'}{$settings{'TOR_ENABLED'}} = 'checked';
 212
 213         $checked{'TOR_RELAY_ENABLED'}{'on'} = '';
 214         $checked{'TOR_RELAY_ENABLED'}{'off'} = '';
 215         $checked{'TOR_RELAY_ENABLED'}{$settings{'TOR_RELAY_ENABLED'}} = 'checked';
 216
 217         &Header::openpage($Lang::tr{'tor configuration'}, 1, '');
 218         &Header::openbigbox('100%', 'left', '', $errormessage);
 219
 220         if ($errormessage) {
 221                 &Header::openbox('100%', 'left', $Lang::tr{'error messages'});
 222                 print "<font class='base'>$errormessage&nbsp;</font>\n";
 223                 &Header::closebox();
 224         }
 225
 226         print "<form method='post' action='$ENV{'SCRIPT_NAME'}'>\n";
 227
 228         &Header::openbox('100%', 'center', $Lang::tr{'tor'});
 229
 230
 231 if ( ($memory != 0) && (@pid[0] ne "///") ){
 232                 print "<table width='95%' cellspacing='0'>";
 233                 print "<tr><td bgcolor='$color{'color20'}' colspan='3' align='left'><strong>$Lang::tr{'tor service'}</strong></td></tr>";
 234                 print "<tr><td class='base'>$Lang::tr{'tor daemon'}</td>";
 235                 print "<td align='center' colspan='2' width='75%' bgcolor='${Header::colourgreen}'><font color='white'><strong>$Lang::tr{'running'}</strong></font></td></tr>";
 236                 print "<tr><td class='base'></td>";
 237                 print "<td bgcolor='$color{'color20'}' align='center'><strong>PID</strong></td>";
 238                 print "<td bgcolor='$color{'color20'}' align='center'><strong>$Lang::tr{'memory'}</strong></td></tr>";
 239                 print "<tr><td class='base'></td>";
 240                 print "<td bgcolor='$color{'color22'}' align='center'>@pid[0]</td>";
 241                 print "<td bgcolor='$color{'color22'}' align='center'>$memory KB</td></tr>";
 242                 print "</table>";
 243         } else {
 244                 print "<table width='95%' cellspacing='0'>";
 245                 print "<tr><td bgcolor='$color{'color20'}' colspan='3' align='left'><strong>$Lang::tr{'tor service'}</strong></td></tr>";
 246                 print "<tr><td class='base'>$Lang::tr{'tor daemon'}</td>";
 247                 print "<td align='center' width='75%' bgcolor='${Header::colourred}'><font color='white'><strong>$Lang::tr{'stopped'}</strong></font></td></tr>";
 248                 print "</table>";
 249         }
 250
 251         &Header::closebox();
 252
 253         &Header::openbox('100%', 'center', $Lang::tr{'tor configuration'});
 254
 255         print <<END;
 256                 <table width='95%'>
 257                         <tr>
 258                                 <td colspan='4' class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'tor common settings'}</b></td>
 259                         </tr>
 260                         <tr>
 261                                 <td width='25%' class='base'>$Lang::tr{'tor enabled'}:</td>
 262                                 <td width='30%'><input type='checkbox' name='TOR_ENABLED' $checked{'TOR_ENABLED'}{'on'} /></td>
 263                                 <td width='25%' class='base'>$Lang::tr{'tor socks port'}:</td>
 264                                 <td width='20%'><input type='text' name='TOR_SOCKS_PORT' value='$settings{'TOR_SOCKS_PORT'}' size='5' /></td>
 265                         </tr>
 266                         <tr>
 267                                 <td width='25%' class='base'>$Lang::tr{'tor relay enabled'}:</td>
 268                                 <td width='30%'><input type='checkbox' name='TOR_RELAY_ENABLED' $checked{'TOR_RELAY_ENABLED'}{'on'} /></td>
 269                                 <td width='25%' class='base'></td>
 270                                 <td width='20%'></td>
 271                         </tr>
 272                 </table>
 273 END
 274
 275         my @temp = split(",", $settings{'TOR_ALLOWED_SUBNETS'});
 276         $settings{'TOR_ALLOWED_SUBNETS'} = join("\n", @temp);
 277
 278         @temp = split(",", $settings{'TOR_USE_EXIT_NODES'});
 279         $settings{'TOR_USE_EXIT_NODES'} = join("\n", @temp);
 280
 281         print <<END;
 282                 <br>
 283                 <br>
 284
 285                 <table width='95%'>
 286                         <tr>
 287                                 <td colspan='4' class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'tor acls'}</b></td>
 288                         </tr>
 289                         <tr>
 290                                 <td colspan='2' class='base' width='55%'>
 291                                         $Lang::tr{'tor allowed subnets'}:
 292                                 </td>
 293                                 <td colspan='2' width='45%'></td>
 294                         </tr>
 295                         <tr>
 296                                 <td colspan='2' class='base' width='55%'>
 297                                         <textarea name='TOR_ALLOWED_SUBNETS' cols='32' rows='3' wrap='off'>$settings{'TOR_ALLOWED_SUBNETS'}</textarea>
 298                                 </td>
 299                                 <td colspan='2' width='45%'></td>
 300                         </tr>
 301                 </table>
 302
 303                 <br>
 304                 <br>
 305
 306                 <table width='95%'>
 307                         <tr>
 308                                 <td colspan='4' class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'tor exit nodes'}</b></td>
 309                         </tr>
 310                         <tr>
 311                                 <td colspan='2' class='base' width='55%'></td>
 312                                 <td colspan='2' class='base' width='45%'>$Lang::tr{'tor use exit nodes'}:</td>
 313                         </tr>
 314                         <tr>
 315                                 <td width='50%' colspan='2'>
 316                                         <select name='TOR_EXIT_COUNTRY'>
 317                                                 <option value=''>- $Lang::tr{'tor exit country any'} -</option>
 318 END
 319
 320                 my @country_names = Locale::Country::all_country_names();
 321                 foreach my $country_name (sort @country_names) {
 322                         my $country_code = Locale::Country::country2code($country_name);
 323                         $country_code = uc($country_code);
 324                         print "<option value='$country_code'>$country_name ($country_code)</option>\n";
 325                 }
 326
 327         print <<END;
 328                                         </select>
 329                                 </td>
 330                                 <td width='50%' colspan='2'>
 331                                         <textarea name='TOR_USE_EXIT_NODES' cols='32' rows='3' wrap='off'>$settings{'TOR_USE_EXIT_NODES'}</textarea>
 332                                 </td>
 333                         </tr>
 334                 </table>
 335 END
 336
 337         &Header::closebox();
 338
 339         # Tor relay box
 340         $selected{'TOR_RELAY_MODE'}{'bridge'} = '';
 341         $selected{'TOR_RELAY_MODE'}{'exit'} = '';
 342         $selected{'TOR_RELAY_MODE'}{'private-bridge'} = '';
 343         $selected{'TOR_RELAY_MODE'}{'relay'} = '';
 344         $selected{'TOR_RELAY_MODE'}{$settings{'TOR_RELAY_MODE'}} = 'selected';
 345
 346         $selected{'TOR_RELAY_BANDWIDTH_RATE'}{'0'} = '';
 347         foreach (@bandwidth_limits) {
 348                 $selected{'TOR_RELAY_BANDWIDTH_RATE'}{$_} = '';
 349         }
 350         $selected{'TOR_RELAY_BANDWIDTH_RATE'}{$settings{'TOR_RELAY_BANDWIDTH_RATE'}} = 'selected';
 351
 352         $selected{'TOR_RELAY_BANDWIDTH_BURST'}{'0'} = '';
 353         foreach (@bandwidth_limits) {
 354                 $selected{'TOR_RELAY_BANDWIDTH_BURST'}{$_} = '';
 355         }
 356         $selected{'TOR_RELAY_BANDWIDTH_BURST'}{$settings{'TOR_RELAY_BANDWIDTH_BURST'}} = 'selected';
 357
 358         foreach (@accounting_periods) {
 359                 $selected{'TOR_RELAY_ACCOUNTING_PERIOD'}{$_} = '';
 360         }
 361         $selected{'TOR_RELAY_ACCOUNTING_PERIOD'}{$settings{'TOR_RELAY_ACCOUNTING_PERIOD'}} = 'selected';
 362
 363         &Header::openbox('100%', 'center', $Lang::tr{'tor relay configuration'});
 364
 365         print <<END;
 366                 <table width='95%'>
 367                         <tr>
 368                                 <td width='25%' class='base'>$Lang::tr{'tor relay mode'}:</td>
 369                                 <td width='30%'>
 370                                         <select name='TOR_RELAY_MODE'>
 371                                                 <option value='exit' $selected{'TOR_RELAY_MODE'}{'exit'}>$Lang::tr{'tor relay mode exit'}</option>
 372                                                 <option value='relay' $selected{'TOR_RELAY_MODE'}{'relay'}>$Lang::tr{'tor relay mode relay'}</option>
 373                                                 <option value='bridge' $selected{'TOR_RELAY_MODE'}{'bridge'}>$Lang::tr{'tor relay mode bridge'}</option>
 374                                                 <option value='private-bridge' $selected{'TOR_RELAY_MODE'}{'private-bridge'}>$Lang::tr{'tor relay mode private bridge'}</option>
 375                                         </select>
 376                                 </td>
 377                                 <td width='25%' class='base'>$Lang::tr{'tor relay nickname'}:&nbsp;<img src='/blob.gif' alt='*' /></td>
 378                                 <td width='20%'>
 379                                         <input type='text' name='TOR_RELAY_NICKNAME' value='$settings{'TOR_RELAY_NICKNAME'}' />
 380                                 </td>
 381                         </tr>
 382                         <tr>
 383                                 <td width='25%' class='base'>$Lang::tr{'tor relay address'}:&nbsp;<img src='/blob.gif' alt='*' /></td>
 384                                 <td width='30%'>
 385                                         <input type='text' name='TOR_RELAY_ADDRESS' value='$settings{'TOR_RELAY_ADDRESS'}' />
 386                                 </td>
 387                                 <td width='25%' class='base'>$Lang::tr{'tor relay port'}:</td>
 388                                 <td width='20%'>
 389                                         <input type='text' name='TOR_RELAY_PORT' value='$settings{'TOR_RELAY_PORT'}' size='5' />
 390                                 </td>
 391                         </tr>
 392                         <tr>
 393                                 <td width='25%' class='base'>$Lang::tr{'tor contact info'}:&nbsp;<img src='/blob.gif' alt='*' /></td>
 394                                 <td width='75%' colspan='3'>
 395                                         <input type='text' name='TOR_RELAY_CONTACT_INFO' value='$settings{'TOR_RELAY_CONTACT_INFO'}' style='width: 98%;' />
 396                                 </td>
 397                         </tr>
 398                 </table>
 399
 400                 <br>
 401
 402                 <table width='95%'>
 403                         <tr>
 404                                 <td colspan='4' class='base' bgcolor='$color{'color20'}'><b>$Lang::tr{'tor bandwidth settings'}</b></td>
 405                         </tr>
 406                         <tr>
 407                                 <td width='25%' class='base'>$Lang::tr{'tor bandwidth rate'}:</td>
 408                                 <td width='30%' class='base'>
 409                                         <select name='TOR_RELAY_BANDWIDTH_RATE'>
 410 END
 411
 412         foreach (@bandwidth_limits) {
 413                 if ($_ >= 1024) {
 414                         print "<option value='$_' $selected{'TOR_RELAY_BANDWIDTH_RATE'}{$_}>". $_ / 1024 ." MBit/s</option>\n";
 415                 } else {
 416                         print "<option value='$_' $selected{'TOR_RELAY_BANDWIDTH_RATE'}{$_}>$_ kBit/s</option>\n";
 417                 }
 418         }
 419
 420         print <<END;
 421                                                 <option value='0' $selected{'TOR_RELAY_BANDWIDTH_RATE'}{'0'}>$Lang::tr{'tor bandwidth unlimited'}</option>
 422                                         </select>
 423                                 </td>
 424                                 <td width='25%' class='base'>$Lang::tr{'tor accounting limit'}:</td>
 425                                 <td width='20%'>
 426                                         <input type='text' name='TOR_RELAY_ACCOUNTING_LIMIT' value='$settings{'TOR_RELAY_ACCOUNTING_LIMIT'}' size='12' />
 427                                 </td>
 428                         </tr>
 429                         <tr>
 430                                 <td width='25%' class='base'>$Lang::tr{'tor bandwidth burst'}:</td>
 431                                 <td width='20%' class='base'>
 432                                         <select name='TOR_RELAY_BANDWIDTH_BURST'>
 433 END
 434
 435         foreach (@bandwidth_limits) {
 436                 if ($_ >= 1024) {
 437                         print "<option value='$_' $selected{'TOR_RELAY_BANDWIDTH_BURST'}{$_}>". $_ / 1024 ." MBit/s</option>\n";
 438                 } else {
 439                         print "<option value='$_' $selected{'TOR_RELAY_BANDWIDTH_BURST'}{$_}>$_ kBit/s</option>\n";
 440                 }
 441         }
 442         print <<END;
 443                                                 <option value='0' $selected{'TOR_RELAY_BANDWIDTH_BURST'}{'0'}>$Lang::tr{'tor bandwidth unlimited'}</option>
 444                                         </select>
 445                                 </td>
 446                                 <td width='25%' class='base'>$Lang::tr{'tor accounting period'}:</td>
 447                                 <td width='20%'>
 448                                         <select name='TOR_RELAY_ACCOUNTING_PERIOD'>
 449 END
 450
 451         foreach (@accounting_periods) {
 452                 print "<option value='$_' $selected{'TOR_RELAY_ACCOUNTING_PERIOD'}{$_}>$Lang::tr{'tor accounting period '.$_}</option>";
 453         }
 454
 455         print <<END;
 456                                         </select>
 457                                 </td>
 458                         </tr>
 459                 </table>
 460 END
 461
 462         &Header::closebox();
 463
 464         print <<END;
 465                 <table width='95%'>
 466                         <tr>
 467                                 <td>
 468                                         <img src='/blob.gif' align='top' alt='*' />&nbsp;<font class='base'>$Lang::tr{'this field may be blank'}</font>
 469                                 </td>
 470                                 <td align='right'>&nbsp;</td>
 471                         </tr>
 472                 </table>
 473
 474                 <hr>
 475
 476                 <table width='95%'>
 477                         <tr>
 478                                 <td>&nbsp;</td>
 479                                 <td align='center'><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td>
 480                                 <td>&nbsp;</td>
 481                         </tr>
 482                 </table>
 483 END
 484
 485         # If we have a control connection, show the stats.
 486         if ($torctrl) {
 487                 &Header::openbox('100%', 'center', $Lang::tr{'tor stats'});
 488
 489                 my @traffic = &TorTrafficStats($torctrl);
 490
 491                 if (@traffic) {
 492                         print <<END;
 493                                 <table width='95%'>
 494 END
 495
 496                 if ($settings{'TOR_RELAY_ENABLED'} eq 'on') {
 497                         my $fingerprint = &TorRelayFingerprint($torctrl);
 498                         if ($fingerprint) {
 499                                 print <<END;
 500                                         <tr>
 501                                                 <td width='40%' class='base'>$Lang::tr{'tor relay fingerprint'}:</td>
 502                                                 <td width='60%'>
 503                                                         <a href='https://atlas.torproject.org/#details/$fingerprint' target='_blank'>$fingerprint</a>
 504                                                 </td>
 505                                         </tr>
 506 END
 507                         }
 508                 }
 509
 510                 my $address = TorGetInfo($torctrl, "address");
 511                 if ($address) {
 512                         print <<END;
 513                                 <tr>
 514                                         <td width='40%' class='base'>$Lang::tr{'tor relay external address'}:</td>
 515                                         <td width='60%'>$address</td>
 516                                 </tr>
 517 END
 518                 }
 519
 520                 print <<END;
 521                                         <tr>
 522                                                 <td width='40%'>$Lang::tr{'tor traffic read written'}:</td>
 523 END
 524                         print "<td width='60%'>" . &FormatBytes($traffic[0]) ."/". &FormatBytes($traffic[1]) . "</td>";
 525                         print <<END;
 526                                         </tr>
 527                                 </table>
 528 END
 529                 }
 530
 531                 my $accounting = &TorAccountingStats($torctrl);
 532                 if ($accounting) {
 533                         print <<END;
 534                                 <table width='95%'>
 535                                         <tr>
 536                                                 <td colspan='2' class='base'><b>$Lang::tr{'tor accounting'}</b></td>
 537                                         </tr>
 538 END
 539
 540                         if ($accounting->{'hibernating'} eq "hard") {
 541                                 print <<END;
 542                                         <tr>
 543                                                 <td class='base' colspan='2' bgcolor="$Header::colourred" align='center'>
 544                                                         <font color='white'>$Lang::tr{'tor traffic limit hard'}</font>
 545                                                 </td>
 546                                         </tr>
 547 END
 548                         } elsif ($accounting->{'hibernating'} eq "soft") {
 549                                 print <<END;
 550                                         <tr>
 551                                                 <td class='base' colspan='2' bgcolor="$Header::colourorange" align='center'>
 552                                                         <font color='white'>$Lang::tr{'tor traffic limit soft'}</font>
 553                                                 </td>
 554                                         </tr>
 555 END
 556                         }
 557
 558                         print <<END;
 559                                         <tr>
 560                                                 <td width='40%' class='base'>$Lang::tr{'tor accounting interval'}</td>
 561                                                 <td width='60%'>
 562                                                         $accounting->{'interval-start'} - $accounting->{'interval-end'}
 563                                                 </td>
 564                                         </tr>
 565                                         <tr>
 566                                                 <td width='40%' class='base'>$Lang::tr{'tor accounting bytes'}</td>
 567                                                 <td width='60%'>
 568 END
 569
 570                         print &FormatBytes($accounting->{'bytes_read'}) . "/" . &FormatBytes($accounting->{'bytes_written'});
 571                         print " (" . &FormatBytes($accounting->{'bytes-left_read'}) . "/" . &FormatBytes($accounting->{'bytes-left_written'});
 572                         print " $Lang::tr{'tor accounting bytes left'})";
 573
 574                         print <<END;
 575                                                 </td>
 576                                         </tr>
 577                                 </table>
 578 END
 579                 }
 580
 581                 my @nodes = &TorORConnStatus($torctrl);
 582                 if (@nodes) {
 583                         my $nodes_length = scalar @nodes;
 584                         print <<END;
 585                                 <table width='95%'>
 586                                         <tr>
 587                                                 <td width='40%' class='base'><b>$Lang::tr{'tor connected relays'}</b></td>
 588                                                 <td width='60%' colspan='2'>($nodes_length)</td>
 589                                         </tr>
 590 END
 591
 592                         foreach my $node (@nodes) {
 593                                 print <<END;
 594                                         <tr>
 595                                                 <td width='40%'>
 596                                                         <a href='https://atlas.torproject.org/#details/$node->{'fingerprint'}' target='_blank'>
 597                                                                 $node->{'name'}
 598                                                         </a>
 599                                                 </td>
 600                                                 <td width='30%'>
 601 END
 602
 603                                 if (exists($node->{'country_code'})) {
 604                                         if ($node->{'country_code'} eq '??') {
 605                                                 print "<img src='/images/flags/blank.png' border='0' align='absmiddle'/>";
 606                                         } else {
 607                                                 print "<a href='country.cgi#$node->{'country_code'}'><img src='/images/flags/$node->{'country_code'}.png' border='0' align='absmiddle' alt='$node->{'country_code'}'></a>";
 608                                         }
 609                                 }
 610
 611                                 print <<END;
 612                                                         <a href='ipinfo.cgi?ip=$node->{'address'}'>$node->{'address'}</a>:$node->{'port'}
 613                                                 </td>
 614                                                 <td width='30%' align='right'>
 615                                                         ~$node->{'bandwidth_string'}
 616                                                 </td>
 617                                         </tr>
 618 END
 619                         }
 620                         print "</table>";
 621                 }
 622
 623                 &Header::closebox();
 624         }
 625
 626         print "</form>\n";
 627
 628         &Header::closebigbox();
 629         &Header::closepage();
 630 }
 631
 632 sub BuildConfiguration() {
 633         my %settings = ();
 634         &General::readhash("${General::swroot}/tor/settings", \%settings);
 635
 636         my $torrc = "${General::swroot}/tor/torrc";
 637
 638         open(FILE, ">$torrc");
 639
 640         # Global settings.
 641         print FILE "ControlPort $TOR_CONTROL_PORT\n";
 642
 643         if ($settings{'TOR_ENABLED'} eq 'on') {
 644                 my $strict_nodes = 0;
 645
 646                 print FILE "SocksPort 0.0.0.0:$settings{'TOR_SOCKS_PORT'}\n";
 647
 648                 my @subnets = split(",", $settings{'TOR_ALLOWED_SUBNETS'});
 649                 foreach (@subnets) {
 650                         print FILE "SocksPolicy accept $_\n" if (&General::validipandmask($_));
 651                 }
 652                 print FILE "SocksPolicy reject *\n" if (@subnets);
 653
 654                 if ($settings{'TOR_EXIT_COUNTRY'} ne '') {
 655                         $strict_nodes = 1;
 656
 657                         print FILE "ExitNodes {$settings{'TOR_EXIT_COUNTRY'}}\n";
 658                 }
 659
 660                 if ($settings{'TOR_USE_EXIT_NODES'} ne '') {
 661                         $strict_nodes = 1;
 662
 663                         my @nodes = split(",", $settings{'TOR_USE_EXIT_NODES'});
 664                         foreach (@nodes) {
 665                                 print FILE "ExitNode $_\n";
 666                         }
 667                 }
 668
 669                 if ($strict_nodes > 0) {
 670                         print FILE "StrictNodes 1\n";
 671                 }
 672         }
 673
 674         if ($settings{'TOR_RELAY_ENABLED'} eq 'on') {
 675                 # Reject access to private networks.
 676                 print FILE "ExitPolicyRejectPrivate 1\n";
 677
 678                 print FILE "ORPort $settings{'TOR_RELAY_PORT'}\n";
 679
 680                 if ($settings{'TOR_RELAY_ADDRESS'} ne '') {
 681                         print FILE "Address $settings{'TOR_RELAY_ADDRESS'}\n";
 682                 }
 683
 684                 if ($settings{'TOR_RELAY_NICKNAME'} ne '') {
 685                         print FILE "Nickname $settings{'TOR_RELAY_NICKNAME'}\n";
 686                 }
 687
 688                 if ($settings{'TOR_RELAY_CONTACT_INFO'} ne '') {
 689                         print FILE "ContactInfo $settings{'TOR_RELAY_CONTACT_INFO'}\n";
 690                 }
 691
 692                 # Limit to bridge mode.
 693                 my $is_bridge = 0;
 694
 695                 if ($settings{'TOR_RELAY_MODE'} eq 'bridge') {
 696                         $is_bridge++;
 697
 698                 # Private bridge.
 699                 } elsif ($settings{'TOR_RELAY_MODE'} eq 'private-bridge') {
 700                         $is_bridge++;
 701
 702                         print FILE "PublishServerDescriptor 0\n";
 703
 704                 # Exit node.
 705                 } elsif ($settings{'TOR_RELAY_MODE'} eq 'exit') {
 706                         print FILE "ExitPolicy accept *:*\n";
 707
 708                 # Relay only.
 709                 } elsif ($settings{'TOR_RELAY_MODE'} eq 'relay') {
 710                         print FILE "ExitPolicy reject *:*\n";
 711                 }
 712
 713                 if ($is_bridge > 0) {
 714                         print FILE "BridgeRelay 1\n";
 715                         print FILE "Exitpolicy reject *:*\n";
 716                 }
 717
 718                 if ($settings{'TOR_RELAY_BANDWIDTH_RATE'} > 0) {
 719                         print FILE "RelayBandwidthRate ";
 720                         print FILE $settings{'TOR_RELAY_BANDWIDTH_RATE'} / 8;
 721                         print FILE " KB\n";
 722
 723                         if ($settings{'TOR_RELAY_BANDWIDTH_BURST'} > 0) {
 724                                 print FILE "RelayBandwidthBurst ";
 725                                 print FILE $settings{'TOR_RELAY_BANDWIDTH_BURST'} / 8;
 726                                 print FILE " KB\n";
 727                         }
 728                 }
 729
 730                 if ($settings{'TOR_RELAY_ACCOUNTING_LIMIT'} > 0) {
 731                         print FILE "AccountingMax ".$settings{'TOR_RELAY_ACCOUNTING_LIMIT'}." MB\n";
 732
 733                         if ($settings{'TOR_RELAY_ACCOUNTING_PERIOD'} eq 'daily') {
 734                                 print FILE "AccountingStart day 00:00\n";
 735                         } elsif ($settings{'TOR_RELAY_ACCOUNTING_PERIOD'} eq 'weekly') {
 736                                 print FILE "AccountingStart week 1 00:00\n";
 737                         } elsif ($settings{'TOR_RELAY_ACCOUNTING_PERIOD'} eq 'monthly') {
 738                                 print FILE "AccountingStart month 1 00:00\n";
 739                         }
 740                 }
 741         }
 742
 743         close(FILE);
 744
 745         # Restart the service.
 746         if (($settings{'TOR_ENABLED'} eq 'on') || ($settings{'TOR_RELAY_ENABLED'} eq 'on')) {
 747                 system("/usr/local/bin/torctrl restart &>/dev/null");
 748         } else {
 749                 system("/usr/local/bin/torctrl stop &>/dev/null");
 750         }
 751         # Update pid and memory
 752         daemonstats();
 753 }
 754
 755 sub TorConnect() {
 756         my $socket = new IO::Socket::INET(
 757                 Proto => 'tcp', PeerAddr => '127.0.0.1', PeerPort => $TOR_CONTROL_PORT,
 758         ) or return;
 759
 760         $socket->autoflush(1);
 761
 762         # Authenticate.
 763         &TorSendCommand($socket, "AUTHENTICATE");
 764
 765         return $socket;
 766 }
 767
 768 sub TorSendCommand() {
 769         my ($socket, $cmd) = @_;
 770
 771         # Replace line ending with \r\n.
 772         chomp $cmd;
 773         $cmd .= "\r\n";
 774
 775         $socket->send($cmd);
 776
 777         my @output = ();
 778         while (my $line = <$socket>) {
 779                 # Skip empty lines.
 780                 if ($line =~ /^.\r\n$/) {
 781                         next;
 782                 }
 783
 784                 # Command has been successfully executed.
 785                 if ($line =~ /250 OK/) {
 786                         last;
 787
 788                 # Error.
 789                 } elsif ($line =~ /^5\d+/) {
 790                         last;
 791
 792                 } else {
 793                         # Remove line endings.
 794                         $line =~ s/\r\n$//;
 795
 796                         push(@output, $line);
 797                 }
 798         }
 799
 800         return @output;
 801 }
 802
 803 sub TorSendCommandOneLine() {
 804         my ($tor, $cmd) = @_;
 805
 806         my @output = &TorSendCommand($tor, $cmd);
 807         return $output[0];
 808 }
 809
 810 sub TorGetInfo() {
 811         my ($tor, $cmd) = @_;
 812
 813         my $output = &TorSendCommandOneLine($tor, "GETINFO ".$cmd);
 814
 815         my ($key, $value) = split("=", $output);
 816         return $value;
 817 }
 818
 819 sub TorClose() {
 820         my $socket = shift;
 821
 822         if ($socket) {
 823                 $socket->shutdown(2);
 824         }
 825 }
 826
 827 sub TorTrafficStats() {
 828         my $tor = shift;
 829
 830         my $output_read    = &TorGetInfo($tor, "traffic/read");
 831         my $output_written = &TorGetInfo($tor, "traffic/written");
 832
 833         return ($output_read, $output_written);
 834 }
 835
 836 sub TorRelayFingerprint() {
 837         my $tor = shift;
 838
 839         return &TorGetInfo($tor, "fingerprint");
 840 }
 841
 842 sub TorORConnStatus() {
 843         my $tor = shift;
 844         my @nodes = ();
 845
 846         my @output = &TorSendCommand($tor, "GETINFO orconn-status");
 847         foreach (@output) {
 848                 $_ =~ s/^250[\+-]orconn-status=//;
 849                 next if ($_ eq "");
 850                 last if ($_ eq ".");
 851                 next unless ($_ =~ /^\$/);
 852
 853                 my @line = split(" ", $_);
 854                 my @node = split(/[=~]/, $line[0]);
 855
 856                 my $node = &TorNodeDescription($tor, $node[0]);
 857                 if ($node) {
 858                         push(@nodes, $node);
 859                 }
 860         }
 861
 862         # Sort by names.
 863         @nodes = sort { $a->{'name'} cmp $b->{'name'} } @nodes;
 864
 865         return @nodes;
 866 }
 867
 868 sub TorNodeDescription() {
 869         my ($tor, $fingerprint) = @_;
 870         $fingerprint =~ s/\$//;
 871
 872         my $node = {
 873                 fingerprint  => $fingerprint,
 874                 exit_node    => 0,
 875         };
 876
 877         my @output = &TorSendCommand($tor, "GETINFO ns/id/$node->{'fingerprint'}");
 878
 879         foreach (@output) {
 880                 # Router
 881                 if ($_ =~ /^r (\w+) (.*) (\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}) (\d+)/) {
 882                         $node->{'name'}    = $1;
 883                         $node->{'address'} = $3;
 884                         $node->{'port'}    = $4;
 885
 886                         my $country_code = &TorGetInfo($tor, "ip-to-country/$node->{'address'}");
 887                         $node->{'country_code'} = $country_code;
 888
 889                 # Flags
 890                 } elsif ($_ =~ /^s (.*)$/) {
 891                         $node->{'flags'} = split(" ", $1);
 892
 893                         foreach my $flag ($node->{'flags'}) {
 894                                 if ($flag eq "Exit") {
 895                                         $node->{'exit_node'}++;
 896                                 }
 897                         }
 898
 899                 # Bandwidth
 900                 } elsif ($_ =~ /^w Bandwidth=(\d+)/) {
 901                         $node->{'bandwidth'} = $1 * 8;
 902                         $node->{'bandwidth_string'} = &FormatBitsPerSecond($node->{'bandwidth'});
 903                 }
 904         }
 905
 906         if (exists($node->{'name'})) {
 907                 return $node;
 908         }
 909 }
 910
 911 sub TorAccountingStats() {
 912         my $tor = shift;
 913         my $ret = {};
 914
 915         my $enabled = &TorGetInfo($tor, "accounting/enabled");
 916         if ($enabled ne '1') {
 917                 return;
 918         }
 919
 920         my @cmds = ("hibernating", "interval-start", "interval-end");
 921         foreach (@cmds) {
 922                 $ret->{$_} = &TorGetInfo($tor, "accounting/$_");
 923         }
 924
 925         my @cmds = ("bytes", "bytes-left");
 926         foreach (@cmds) {
 927                 my $output = &TorGetInfo($tor, "accounting/$_");
 928                 my @bytes = split(" ", $output);
 929
 930                 $ret->{$_."_read"}    = $bytes[0];
 931                 $ret->{$_."_written"} = $bytes[1];
 932         }
 933
 934         return $ret;
 935 }
 936
 937 sub FormatBytes() {
 938         my $bytes = shift;
 939
 940         my @units = ("B", "KB", "MB", "GB", "TB");
 941         my $units_index = 0;
 942
 943         while (($units_index <= $#units) && ($bytes >= 1024)) {
 944                 $units_index++;
 945                 $bytes /= 1024;
 946         }
 947
 948         return sprintf("%.2f %s", $bytes, $units[$units_index]);
 949 }
 950
 951 sub FormatBitsPerSecond() {
 952         my $bits = shift;
 953
 954         my @units = ("Bit/s", "KBit/s", "MBit/s", "GBit/s", "TBit/s");
 955         my $units_index = 0;
 956
 957         while (($units_index <= $#units) && ($bits >= 1024)) {
 958                 $units_index++;
 959                 $bits /= 1024;
 960         }
 961
 962         return sprintf("%.2f %s", $bits, $units[$units_index]);
 963 }