src/configtest.php

   1 <?php
   2
   3 /**
   4  * SquirrelMail configtest script
   5  *
   6  * @copyright &copy; 2003-2006 The SquirrelMail Project Team
   7  * @license http://opensource.org/licenses/gpl-license.php GNU Public License
   8  * @version $Id$
   9  * @package squirrelmail
  10  * @subpackage config
  11  */
  12
  13 /************************************************************
  14  * NOTE: you do not need to change this script!             *
  15  * If it throws errors you need to adjust your config.      *
  16  ************************************************************/
  17
  18 // This script could really use some restructuring as it has grown quite rapidly
  19 // but is not very 'clean'. Feel free to get some structure into this thing.
  20 $warnings = 0;
  21
  22 function do_err($str, $fatal = TRUE) {
  23     global $IND, $warnings;
  24     $level = $fatal ? 'FATAL ERROR:' : 'WARNING:';
  25     echo '<p>'.$IND.'<font color="red"><b>' . $level . '</b></font> ' .$str. "</p>\n";
  26     if($fatal) {
  27         echo '</body></html>';
  28         exit;
  29     } else {
  30         $warnings++;
  31     }
  32 }
  33
  34 $IND = str_repeat('&nbsp;',4);
  35
  36 ob_implicit_flush();
  37 /** @ignore */
  38 define('SM_PATH', '../');
  39
  40 /* set default value in order to block remote access to script */
  41 $allow_remote_configtest=false;
  42
  43 /*
  44  * Load config before output begins. functions/strings.php depends on
  45  * functions/globals.php. functions/global.php needs to be run before
  46  * any html output starts. If config.php is missing, error will be displayed
  47  * later.
  48  */
  49 if (file_exists(SM_PATH . 'config/config.php')) {
  50         require(SM_PATH . 'config/config.php');
  51 }
  52 require(SM_PATH . 'functions/global.php');
  53 require(SM_PATH . 'functions/strings.php');
  54
  55 ?><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
  56   "http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
  57 <html>
  58 <head>
  59   <meta name="robots" content="noindex,nofollow">
  60   <title>SquirrelMail configtest</title>
  61 </head>
  62 <body>
  63 <h1>SquirrelMail configtest</h1>
  64
  65 <p>This script will try to check some aspects of your SquirrelMail configuration
  66 and point you to errors whereever it can find them. You need to go run <tt>conf.pl</tt>
  67 in the <tt>config/</tt> directory first before you run this script.</p>
  68
  69 <?php
  70
  71 $included = array_map('basename', get_included_files() );
  72 if(!in_array('config.php', $included)) {
  73     if(!file_exists(SM_PATH . 'config/config.php')) {
  74         do_err('Config file '.SM_PATH . 'config/config.php does not exist!<br />'.
  75                 'You need to run <tt>conf.pl</tt> first.');
  76     }
  77     do_err('Could not read '.SM_PATH.'config/config.php! Check file permissions.');
  78 }
  79 if(!in_array('strings.php', $included)) {
  80     do_err('Could not include '.SM_PATH.'functions/strings.php!<br />'.
  81             'Check permissions on that file.');
  82 }
  83
  84 /* Block remote use of script */
  85 if (! $allow_remote_configtest) {
  86     sqGetGlobalVar('REMOTE_ADDR',$client_ip,SQ_SERVER);
  87     sqGetGlobalVar('SERVER_ADDR',$server_ip,SQ_SERVER);
  88
  89     if ((! isset($client_ip) || $client_ip!='127.0.0.1') &&
  90             (! isset($client_ip) || ! isset($server_ip) || $client_ip!=$server_ip)) {
  91         do_err('Enable "Allow remote configtest" option in squirrelmail configuration in order to use this script.');
  92     }
  93 }
  94 /* checking PHP specs */
  95
  96 echo "<p><table>\n<tr><td>SquirrelMail version:</td><td><b>" . $version . "</b></td></tr>\n" .
  97     '<tr><td>Config file version:</td><td><b>' . $config_version . "</b></td></tr>\n" .
  98     '<tr><td>Config file last modified:</td><td><b>' .
  99     date ('d F Y H:i:s', filemtime(SM_PATH . 'config/config.php')) .
 100     "</b></td></tr>\n</table>\n</p>\n\n";
 101
 102 /* check $config_version */
 103 if ($config_version!='1.4.0') {
 104     do_err('Configuration file version does not match required version. Please update your configuration file.');
 105 }
 106
 107 echo "Checking PHP configuration...<br />\n";
 108
 109 if(!check_php_version(4,1,0)) {
 110     do_err('Insufficient PHP version: '. PHP_VERSION . '! Minimum required: 4.1.0');
 111 }
 112
 113 echo $IND . 'PHP version ' . PHP_VERSION . ' OK. (You have: ' . phpversion() . ". Minimum: 4.1.0)<br />\n";
 114 /* test for boolean false and any string that is not equal to 'off' */
 115 if ((bool) ini_get('register_globals') &&
 116     strtolower(ini_get('register_globals'))!='off') {
 117         do_err('You have register_globals turned on.  This is not an error, but it CAN be a security hazard.  Consider turning register_globals off.', false);
 118 }
 119 $php_exts = array('session','pcre');
 120 $diff = array_diff($php_exts, get_loaded_extensions());
 121 if(count($diff)) {
 122     do_err('Required PHP extensions missing: '.implode(', ',$diff) );
 123 }
 124
 125 echo $IND . "PHP extensions OK.<br />\n";
 126
 127 /* dangerous php settings */
 128 /**
 129  * mbstring.func_overload allows to replace original string and regexp functions
 130  * with their equivalents from php mbstring extension. It causes problems when
 131  * scripts analyze 8bit strings byte after byte or use 8bit strings in regexp tests.
 132  * Setting can be controlled in php.ini (php 4.2.0), webserver config (php 4.2.0)
 133  * and .htaccess files (php 4.3.5).
 134  */
 135 if (function_exists('mb_internal_encoding') &&
 136     check_php_version(4,2,0) &&
 137     (int)ini_get('mbstring.func_overload')!=0) {
 138     $mb_error='You have enabled mbstring overloading.'
 139         .' It can cause problems with SquirrelMail scripts that rely on single byte string functions.';
 140     do_err($mb_error);
 141 }
 142
 143 /* checking paths */
 144
 145 echo "Checking paths...<br />\n";
 146
 147 if(!file_exists($data_dir)) {
 148     // data_dir is not that important in db_setups.
 149     if (isset($prefs_dsn) && ! empty($prefs_dsn)) {
 150         $data_dir_error = "Data dir ($data_dir) does not exist!\n";
 151         echo $IND .'<font color="red"><b>ERROR:</b></font> ' . $data_dir_error;
 152     } else {
 153         do_err("Data dir ($data_dir) does not exist!");
 154     }
 155 }
 156 // don't check if errors
 157 if(!isset($data_dir_error) && !is_dir($data_dir)) {
 158     if (isset($prefs_dsn) && ! empty($prefs_dsn)) {
 159         $data_dir_error = "Data dir ($data_dir) is not a directory!\n";
 160         echo $IND . '<font color="red"><b>ERROR:</b></font> ' . $data_dir_error;
 161     } else {
 162         do_err("Data dir ($data_dir) is not a directory!");
 163     }
 164 }
 165 // datadir should be executable - but no clean way to test on that
 166 if(!isset($data_dir_error) && !is_writable($data_dir)) {
 167     if (isset($prefs_dsn) && ! empty($prefs_dsn)) {
 168         $data_dir_error = "Data dir ($data_dir) is not writable!\n";
 169         echo $IND . '<font color="red"><b>ERROR:</b></font> ' . $data_dir_error;
 170     } else {
 171         do_err("Data dir ($data_dir) is not writable!");
 172     }
 173 }
 174
 175 if (isset($data_dir_error)) {
 176     echo " Some plugins might need access to data directory.<br />\n";
 177 } else {
 178     // todo_ornot: actually write something and read it back.
 179     echo $IND . "Data dir OK.<br />\n";
 180 }
 181
 182 if($data_dir == $attachment_dir) {
 183     echo $IND . "Attachment dir is the same as data dir.<br />\n";
 184     if (isset($data_dir_error)) {
 185         do_err($data_dir_error);
 186     }
 187 } else {
 188     if(!file_exists($attachment_dir)) {
 189         do_err("Attachment dir ($attachment_dir) does not exist!");
 190     }
 191     if (!is_dir($attachment_dir)) {
 192         do_err("Attachment dir ($attachment_dir) is not a directory!");
 193     }
 194     if (!is_writable($attachment_dir)) {
 195         do_err("I cannot write to attachment dir ($attachment_dir)!");
 196     }
 197     echo $IND . "Attachment dir OK.<br />\n";
 198 }
 199
 200
 201 /* check plugins and themes */
 202 $bad_plugins = array(
 203         'attachment_common',      // Integrated into SquirrelMail 1.2 core
 204         'auto_prune_sent',        // Obsolete: See Proon Automatic Folder Pruning plugin
 205         'compose_new_window',     // Integrated into SquirrelMail 1.4 core
 206         'delete_move_next',       // Integrated into SquirrelMail 1.5 core
 207         'disk_quota',             // Obsolete: See Check Quota plugin
 208         'email_priority',         // Integrated into SquirrelMail 1.2 core
 209         'emoticons',              // Obsolete: See HTML Mail plugin
 210         'focus_change',           // Integrated into SquirrelMail 1.2 core
 211         'folder_settings',        // Integrated into SquirrelMail 1.5.1 core
 212         'global_sql_addressbook', // Integrated into SquirrelMail 1.4 core
 213         'hancock',                // Not Working: See Random Signature Taglines plugin
 214         'msg_flags',              // Integrated into SquirrelMail 1.5.1 core
 215         'message_source',         // Added to SquirrelMail 1.4 Core Plugins (message_details)
 216         'motd',                   // Integrated into SquirrelMail 1.2 core
 217         'paginator',              // Integrated into SquirrelMail 1.2 core
 218         'printer_friendly',       // Integrated into SquirrelMail 1.2 core
 219         'procfilter',             // Obsolete: See Server Side Filter plugin
 220         'redhat_php_cgi_fix',     // Integrated into SquirrelMail 1.1.1 core
 221         'send_to_semicolon',      // Integrated into SquirrelMail 1.4.1 core
 222         'spamassassin',           // Not working beyond SquirrelMail 1.2.7: See Spamassassin SpamFilter (Frontend) v2 plugin
 223         'sqcalendar',             // Added to SquirrelMail 1.2 Core Plugins (calendar)
 224         'sqclock',                // Integrated into SquirrelMail 1.2 core
 225         'sql_squirrel_logger',    // Obsolete: See Squirrel Logger plugin
 226         'tmda',                   // Obsolete: See TMDA Tools plugin
 227         'vacation',               // Obsolete: See Vacation Local plugin
 228         'view_as_html',           // Integrated into SquirrelMail 1.5.1 core
 229         'xmailer'                 // Integrated into SquirrelMail 1.2 core
 230         );
 231
 232 if (isset($plugins[0])) {
 233     foreach($plugins as $plugin) {
 234         if(!file_exists(SM_PATH .'plugins/'.$plugin)) {
 235             do_err('You have enabled the <i>'.$plugin.'</i> plugin, but I cannot find it.', FALSE);
 236         } elseif (!is_readable(SM_PATH .'plugins/'.$plugin.'/setup.php')) {
 237             do_err('You have enabled the <i>'.$plugin.'</i> plugin, but I cannot read its setup.php file.', FALSE);
 238         } elseif (in_array($plugin, $bad_plugins)) {
 239             do_err('You have enabled the <i>'.$plugin.'</i> plugin, which causes problems with this version of SquirrelMail. Please check the ReleaseNotes or other documentation for more information.', false);
 240         }
 241     }
 242     echo $IND . "Plugins OK.<br />\n";
 243 } else {
 244     echo $IND . "Plugins are not enabled in config.<br />\n";
 245 }
 246 foreach($theme as $thm) {
 247     if(!file_exists($thm['PATH'])) {
 248         do_err('You have enabled the <i>'.$thm['NAME'].'</i> theme but I cannot find it ('.$thm['PATH'].').', FALSE);
 249     } elseif(!is_readable($thm['PATH'])) {
 250         do_err('You have enabled the <i>'.$thm['NAME'].'</i> theme but I cannot read it ('.$thm['PATH'].').', FALSE);
 251     }
 252 }
 253
 254 echo $IND . "Themes OK.<br />\n";
 255
 256 if ( $squirrelmail_default_language != 'en_US' ) {
 257     $loc_path = SM_PATH .'locale/'.$squirrelmail_default_language.'/LC_MESSAGES/squirrelmail.mo';
 258     if( ! file_exists( $loc_path ) ) {
 259         do_err('You have set <i>' . $squirrelmail_default_language .
 260                 '</i> as your default language, but I cannot find this translation (should be '.
 261                 'in <tt>' . $loc_path . '</tt>). Please note that you have to download translations '.
 262                 'separately from the main SquirrelMail package.', FALSE);
 263     } elseif ( ! is_readable( $loc_path ) ) {
 264         do_err('You have set <i>' . $squirrelmail_default_language .
 265                 '</i> as your default language, but I cannot read this translation (file '.
 266                 'in <tt>' . $loc_path . '</tt> unreadable).', FALSE);
 267     } else {
 268         echo $IND . "Default language OK.<br />\n";
 269     }
 270 } else {
 271     echo $IND . "Default language OK.<br />\n";
 272 }
 273
 274 echo $IND . "Base URL detected as: <tt>" . htmlspecialchars(get_location()) . "</tt><br />\n";
 275
 276 /* check minimal requirements for other security options */
 277
 278 /* imaps or ssmtp */
 279 if($use_smtp_tls == 1 || $use_imap_tls == 1) {
 280     if(!check_php_version(4,3,0)) {
 281         do_err('You need at least PHP 4.3.0 for SMTP/IMAP TLS!');
 282     }
 283     if(!extension_loaded('openssl')) {
 284         do_err('You need the openssl PHP extension to use SMTP/IMAP TLS!');
 285     }
 286 }
 287 /* starttls extensions */
 288 if($use_smtp_tls === 2 || $use_imap_tls === 2) {
 289     if (! function_exists('stream_socket_enable_crypto')) {
 290         do_err('If you want to use STARTTLS extension, you need stream_socket_enable_crypto() function from PHP 5.1.0 and newer.');
 291     }
 292 }
 293 /* digest-md5 */
 294 if ($smtp_auth_mech=='digest-md5' || $imap_auth_mech =='digest-md5') {
 295     if (!extension_loaded('xml')) {
 296         do_err('You need the PHP XML extension to use Digest-MD5 authentication!');
 297     }
 298 }
 299
 300 /* check outgoing mail */
 301
 302 echo "Checking outgoing mail service....<br />\n";
 303
 304 if($useSendmail) {
 305     // is_executable also checks for existance, but we want to be as precise as possible with the errors
 306     if(!file_exists($sendmail_path)) {
 307         do_err("Location of sendmail program incorrect ($sendmail_path)!");
 308     }
 309     if(!is_executable($sendmail_path)) {
 310         do_err("I cannot execute the sendmail program ($sendmail_path)!");
 311     }
 312
 313     echo $IND . "sendmail OK<br />\n";
 314 } else {
 315     $stream = fsockopen( ($use_smtp_tls==1?'tls://':'').$smtpServerAddress, $smtpPort,
 316             $errorNumber, $errorString);
 317     if(!$stream) {
 318         do_err("Error connecting to SMTP server \"$smtpServerAddress:$smtpPort\".".
 319                 "Server error: ($errorNumber) ".htmlspecialchars($errorString));
 320     }
 321
 322     // check for SMTP code; should be 2xx to allow us access
 323     $smtpline = fgets($stream, 1024);
 324     if(((int) $smtpline{0}) > 3) {
 325         do_err("Error connecting to SMTP server. Server error: ".
 326                 htmlspecialchars($smtpline));
 327     }
 328
 329     /* smtp starttls checks */
 330     if ($use_smtp_tls===2) {
 331         // if something breaks, script should close smtp connection on exit.
 332
 333         // say helo
 334         fwrite($stream,"EHLO $client_ip\r\n");
 335
 336         $ehlo=array();
 337         $ehlo_error = false;
 338         while ($line=fgets($stream, 1024)){
 339             if (preg_match("/^250(-|\s)(\S*)\s+(\S.*)/",$line,$match)||
 340                     preg_match("/^250(-|\s)(\S*)\s+/",$line,$match)) {
 341                 if (!isset($match[3])) {
 342                     // simple one word extension
 343                     $ehlo[strtoupper($match[2])]='';
 344                 } else {
 345                     // ehlo-keyword + ehlo-param
 346                     $ehlo[strtoupper($match[2])]=trim($match[3]);
 347                 }
 348                 if ($match[1]==' ') {
 349                     $ret = $line;
 350                     break;
 351                 }
 352             } else {
 353                 //
 354                 $ehlo_error = true;
 355                 $ehlo[]=$line;
 356                 break;
 357             }
 358         }
 359         if ($ehlo_error) {
 360             do_err('SMTP EHLO failed. You need ESMTP support for SMTP STARTTLS');
 361         } elseif (!array_key_exists('STARTTLS',$ehlo)) {
 362             do_err('STARTTLS support is not declared by SMTP server.');
 363         }
 364
 365         fwrite($stream,"STARTTLS\r\n");
 366         $starttls_response=fgets($stream, 1024);
 367         if ($starttls_response[0]!=2) {
 368             $starttls_cmd_err = 'SMTP STARTTLS failed. Server replied: '
 369                 .htmlspecialchars($starttls_response);
 370             do_err($starttls_cmd_err);
 371         } elseif(! stream_socket_enable_crypto($stream,true,STREAM_CRYPTO_METHOD_TLS_CLIENT)) {
 372             do_err('Failed to enable encryption on SMTP STARTTLS connection.');
 373         } else {
 374             echo $IND . "SMTP STARTTLS extension looks OK.<br />\n";
 375         }
 376         // According to RFC we should second ehlo call here.
 377     }
 378
 379     fputs($stream, 'QUIT');
 380     fclose($stream);
 381     echo $IND . 'SMTP server OK (<tt><small>'.
 382             trim(htmlspecialchars($smtpline))."</small></tt>)<br />\n";
 383
 384     /* POP before SMTP */
 385     if($pop_before_smtp) {
 386         $stream = fsockopen($smtpServerAddress, 110, $err_no, $err_str);
 387         if (!$stream) {
 388             do_err("Error connecting to POP Server ($smtpServerAddress:110) "
 389                 . $err_no . ' : ' . htmlspecialchars($err_str));
 390         }
 391
 392         $tmp = fgets($stream, 1024);
 393         if (substr($tmp, 0, 3) != '+OK') {
 394             do_err("Error connecting to POP Server ($smtpServerAddress:110)"
 395                 . ' '.htmlspecialchars($tmp));
 396         }
 397         fputs($stream, 'QUIT');
 398         fclose($stream);
 399         echo $IND . "POP-before-SMTP OK.<br />\n";
 400     }
 401 }
 402
 403 /**
 404  * Check the IMAP server
 405  */
 406 echo "Checking IMAP service....<br />\n";
 407
 408 /** Can we open a connection? */
 409 $stream = fsockopen( ($use_imap_tls==1?'tls://':'').$imapServerAddress, $imapPort,
 410         $errorNumber, $errorString);
 411 if(!$stream) {
 412     do_err("Error connecting to IMAP server \"$imapServerAddress:$imapPort\".".
 413             "Server error: ($errorNumber) ".
 414             htmlspecialchars($errorString));
 415 }
 416
 417 /** Is the first response 'OK'? */
 418 $imapline = fgets($stream, 1024);
 419 if(substr($imapline, 0,4) != '* OK') {
 420     do_err('Error connecting to IMAP server. Server error: '.
 421             htmlspecialchars($imapline));
 422 }
 423
 424 echo $IND . 'IMAP server ready (<tt><small>'.
 425     htmlspecialchars(trim($imapline))."</small></tt>)<br />\n";
 426
 427 /** Check capabilities */
 428 fputs($stream, "A001 CAPABILITY\r\n");
 429 $capline = '';
 430 while ($line=fgets($stream, 1024)){
 431     if (preg_match("/A001.*/",$line)) {
 432         break;
 433     } else {
 434         $capline.=$line;
 435     }
 436 }
 437
 438 /* don't display capabilities before STARTTLS */
 439 if ($use_imap_tls===2 && stristr($capline, 'STARTTLS') === false) {
 440     do_err('Your server doesn\'t support STARTTLS.');
 441 } elseif($use_imap_tls===2) {
 442     /* try starting starttls */
 443     fwrite($stream,"A002 STARTTLS\r\n");
 444     $starttls_line=fgets($stream, 1024);
 445     if (! preg_match("/^A002 OK.*/i",$starttls_line)) {
 446         $imap_starttls_err = 'IMAP STARTTLS failed. Server replied: '
 447             .htmlspecialchars($starttls_line);
 448         do_err($imap_starttls_err);
 449     } elseif (! stream_socket_enable_crypto($stream,true,STREAM_CRYPTO_METHOD_TLS_CLIENT)) {
 450         do_err('Failed to enable encryption on IMAP connection.');
 451     } else {
 452         echo $IND . "IMAP STARTTLS extension looks OK.<br />\n";
 453     }
 454
 455     // get new capability line
 456     fwrite($stream,"A003 CAPABILITY\r\n");
 457     $capline='';
 458     while ($line=fgets($stream, 1024)){
 459         if (preg_match("/A003.*/",$line)) {
 460             break;
 461         } else {
 462             $capline.=$line;
 463         }
 464     }
 465 }
 466
 467 echo $IND . 'Capabilities: <tt>'.htmlspecialchars($capline)."</tt><br />\n";
 468
 469 if($imap_auth_mech == 'login' && stristr($capline, 'LOGINDISABLED') !== FALSE) {
 470     do_err('Your server doesn\'t allow plaintext logins. '.
 471             'Try enabling another authentication mechanism like CRAM-MD5, DIGEST-MD5 or TLS-encryption '.
 472             'in the SquirrelMail configuration.', FALSE);
 473 }
 474
 475 /** OK, close connection */
 476 fputs($stream, "A004 LOGOUT\r\n");
 477 fclose($stream);
 478
 479 echo "Checking internationalization (i18n) settings...<br />\n";
 480 echo "$IND gettext - ";
 481 if (function_exists('gettext')) {
 482     echo 'Gettext functions are available.'
 483         .' On some systems you must have appropriate system locales compiled.'
 484         ."<br />\n";
 485
 486     /* optional setlocale() tests. Should work only on glibc systems. */
 487     if (sqgetGlobalVar('testlocales',$testlocales,SQ_GET)) {
 488         include_once(SM_PATH . 'functions/i18n.php');
 489         echo $IND . $IND . 'Testing translations:<br>';
 490         foreach ($languages as $lang_code => $lang_data) {
 491             /* don't test aliases */
 492             if (isset($lang_data['NAME'])) {
 493                 /* locale can be $lang_code or $lang_data['LOCALE'] */
 494                 if (isset($lang_data['LOCALE'])) {
 495                     $setlocale = $lang_data['LOCALE'];
 496                 } else {
 497                     $setlocale = $lang_code;
 498                 }
 499                 /* prepare information about tested locales */
 500                 if (is_array($setlocale)) {
 501                     $display_locale = implode(', ',$setlocale);
 502                     $locale_count = count($setlocale);
 503                 } else {
 504                     $display_locale = $setlocale;
 505                     $locale_count = 1;
 506                 }
 507                 $tested_locales_msg = 'Tested '.htmlspecialchars($display_locale).' '
 508                     .($locale_count>1 ? 'locales':'locale'). '.';
 509
 510                 echo $IND . $IND .$IND . $lang_data['NAME'].' (' .$lang_code. ') - ';
 511                 $retlocale = sq_setlocale(LC_ALL,$setlocale);
 512                 if (is_bool($retlocale)) {
 513                     echo '<font color="red">unsupported</font>. ';
 514                     echo $tested_locales_msg;
 515                 } else {
 516                     echo 'supported. '
 517                         .$tested_locales_msg
 518                         .' setlocale() returned "'.htmlspecialchars($retlocale).'"';
 519                 }
 520                 echo "<br />\n";
 521             }
 522         }
 523         echo $IND . $IND . '<a href="configtest.php">Don\'t test translations</a>';
 524     } else {
 525         echo $IND . $IND . '<a href="configtest.php?testlocales=1">Test translations</a>. '
 526             .'This test is not accurate and might work only on some systems.'
 527             ."\n";
 528     }
 529     echo "<br />\n";
 530     /* end of translation tests */
 531 } else {
 532     echo 'Gettext functions are unavailable.'
 533         .' SquirrelMail will use slower internal gettext functions.'
 534         ."<br />\n";
 535 }
 536 echo "$IND mbstring - ";
 537 if (function_exists('mb_detect_encoding')) {
 538     echo "Mbstring functions are available.<br />\n";
 539 } else {
 540     echo 'Mbstring functions are unavailable.'
 541         ." Japanese translation won't work.<br />\n";
 542 }
 543 echo "$IND recode - ";
 544 if (function_exists('recode')) {
 545     echo "Recode functions are available.<br />\n";
 546 } elseif (isset($use_php_recode) && $use_php_recode) {
 547     echo "Recode functions are unavailable.<br />\n";
 548     do_err('Your configuration requires recode support, but recode support is missing.');
 549 } else {
 550     echo "Recode functions are unavailable.<br />\n";
 551 }
 552 echo "$IND iconv - ";
 553 if (function_exists('iconv')) {
 554     echo "Iconv functions are available.<br />\n";
 555 } elseif (isset($use_php_iconv) && $use_php_iconv) {
 556     echo "Iconv functions are unavailable.<br />\n";
 557     do_err('Your configuration requires iconv support, but iconv support is missing.');
 558 } else {
 559     echo "Iconv functions are unavailable.<br />\n";
 560 }
 561 // same test as in include/validate.php
 562 echo "$IND timezone - ";
 563 if ( (!ini_get('safe_mode')) ||
 564         !strcmp(ini_get('safe_mode_allowed_env_vars'),'') ||
 565         preg_match('/^([\w_]+,)*TZ/', ini_get('safe_mode_allowed_env_vars')) ) {
 566     echo "Webmail users can change their time zone settings. \n";
 567 } else {
 568     echo "Webmail users can't change their time zone settings. \n";
 569 }
 570 if (isset($_ENV['TZ'])) {
 571     echo 'Default time zone is '.htmlspecialchars($_ENV['TZ']);
 572 } else {
 573     echo 'Current time zone is '.date('T');
 574 }
 575 echo ".<br />\n";
 576
 577 // Pear DB tests
 578 echo "Checking database functions...<br />\n";
 579 if($addrbook_dsn || $prefs_dsn || $addrbook_global_dsn) {
 580     @include_once('DB.php');
 581     if (class_exists('DB')) {
 582         echo "$IND PHP Pear DB support is present.<br />\n";
 583         $db_functions=array(
 584                 'dbase' => 'dbase_open',
 585                 'fbsql' => 'fbsql_connect',
 586                 'interbase' => 'ibase_connect',
 587                 'informix' => 'ifx_connect',
 588                 'msql' => 'msql_connect',
 589                 'mssql' => 'mssql_connect',
 590                 'mysql' => 'mysql_connect',
 591                 'mysqli' => 'mysqli_connect',
 592                 'oci8' => 'ocilogon',
 593                 'odbc' => 'odbc_connect',
 594                 'pgsql' => 'pg_connect',
 595                 'sqlite' => 'sqlite_open',
 596                 'sybase' => 'sybase_connect'
 597                 );
 598
 599         $dsns = array();
 600         if($prefs_dsn) {
 601             $dsns['preferences'] = $prefs_dsn;
 602         }
 603         if($addrbook_dsn) {
 604             $dsns['addressbook'] = $addrbook_dsn;
 605         }
 606         if($addrbook_global_dsn) {
 607             $dsns['global addressbook'] = $addrbook_global_dsn;
 608         }
 609
 610         foreach($dsns as $type => $dsn) {
 611             $aDsn = explode(':', $dsn);
 612             $dbtype = array_shift($aDsn);
 613             if(isset($db_functions[$dbtype]) && function_exists($db_functions[$dbtype])) {
 614                 echo "$IND$dbtype database support present.<br />\n";
 615
 616                 // now, test this interface:
 617
 618                 $dbh = DB::connect($dsn, true);
 619                 if (DB::isError($dbh)) {
 620                     do_err('Database error: '. htmlspecialchars(DB::errorMessage($dbh)) .
 621                             ' in ' .$type .' DSN.');
 622                 }
 623                 $dbh->disconnect();
 624                 echo "$IND$type database connect successful.<br />\n";
 625
 626             } else {
 627                 do_err($dbtype.' database support not present!');
 628             }
 629         }
 630     } else {
 631         $db_error='Required PHP PEAR DB support is not available.'
 632             .' Is PEAR installed and is the include path set correctly to find <tt>DB.php</tt>?'
 633             .' The include path is now:<tt>' . ini_get('include_path') . '</tt>.';
 634         do_err($db_error);
 635     }
 636 } else {
 637     echo $IND."not using database functionality.<br />\n";
 638 }
 639
 640 // LDAP DB tests
 641 echo "Checking LDAP functions...<br />\n";
 642 if( empty($ldap_server) ) {
 643     echo $IND."not using LDAP functionality.<br />\n";
 644 } else {
 645     if ( !function_exists('ldap_connect') ) {
 646         do_err('Required LDAP support is not available.');
 647     } else {
 648         echo "$IND LDAP support present.<br />\n";
 649         foreach ( $ldap_server as $param ) {
 650
 651             $linkid = @ldap_connect($param['host'], (empty($param['port']) ? 389 : $param['port']) );
 652
 653             if ( $linkid ) {
 654                 echo "$IND LDAP connect to ".$param['host']." successful: ".$linkid."<br />\n";
 655
 656                 if ( !empty($param['protocol']) &&
 657                         !ldap_set_option($linkid, LDAP_OPT_PROTOCOL_VERSION, $param['protocol']) ) {
 658                     do_err('Unable to set LDAP protocol');
 659                 }
 660
 661                 if ( empty($param['binddn']) ) {
 662                     $bind = @ldap_bind($linkid);
 663                 } else {
 664                     $bind = @ldap_bind($param['binddn'], $param['bindpw']);
 665                 }
 666
 667                 if ( $bind ) {
 668                     echo "$IND LDAP Bind Successful <br />";
 669                 } else {
 670                     do_err('Unable to Bind to LDAP Server');
 671                 }
 672
 673                 @ldap_close($linkid);
 674             } else {
 675                 do_err('Connection to LDAP failed');
 676             }
 677         }
 678     }
 679 }
 680
 681 echo '<hr width="75%" align="center">';
 682 echo '<h2 align="center">Summary</h2>';
 683 $footer = '<hr width="75%" align="center">';
 684 if ($warnings) {
 685     echo '<p>No fatal errors were found, but there was at least 1 warning.  Please check the flagged issue(s) carefully, as correcting them may prevent erratic, undefined, or incorrect behavior (or flat out breakage).</p>';
 686     echo $footer;
 687 } else {
 688     print <<< EOF
 689 <p>Congratulations, your SquirrelMail setup looks fine to me!</p>
 690
 691 <p><a href="login.php">Login now</a></p>
 692
 693 </body>
 694 </html>
 695 EOF;
 696     echo $footer;
 697 }
 698 ?>