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