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',      // Integrated into SquirrelMail 1.2 core
 198         'auto_prune_sent',        // Obsolete: See Proon Automatic Folder Pruning plugin
 199         'compose_new_window',     // Integrated into SquirrelMail 1.4 core
 200         'delete_move_next',       // Integrated into SquirrelMail 1.5 core
 201         'disk_quota',             // Obsolete: See Check Quota plugin
 202         'email_priority',         // Integrated into SquirrelMail 1.2 core
 203         'emoticons',              // Obsolete: See HTML Mail plugin
 204         'focus_change',           // Integrated into SquirrelMail 1.2 core
 205         'folder_settings',        // Integrated into SquirrelMail 1.5.1 core
 206         'global_sql_addressbook', // Integrated into SquirrelMail 1.4 core
 207         'hancock',                // Not Working: See Random Signature Taglines plugin
 208         'msg_flags',              // Integrated into SquirrelMail 1.5.1 core
 209         'message_source',         // Added to SquirrelMail 1.4 Core Plugins (message_details)
 210         'motd',                   // Integrated into SquirrelMail 1.2 core
 211         'paginator',              // Integrated into SquirrelMail 1.2 core
 212         'printer_friendly',       // Integrated into SquirrelMail 1.2 core
 213         'procfilter',             // Obsolete: See Server Side Filter plugin
 214         'redhat_php_cgi_fix',     // Integrated into SquirrelMail 1.1.1 core
 215         'send_to_semicolon',      // Integrated into SquirrelMail 1.4.1 core
 216         'spamassassin',           // Not working beyond SquirrelMail 1.2.7: See Spamassassin SpamFilter (Frontend) v2 plugin
 217         'sqcalendar',             // Added to SquirrelMail 1.2 Core Plugins (calendar)
 218         'sqclock',                // Integrated into SquirrelMail 1.2 core
 219         'sql_squirrel_logger',    // Obsolete: See Squirrel Logger plugin
 220         'tmda',                   // Obsolete: See TMDA Tools plugin
 221         'vacation',               // Obsolete: See Vacation Local plugin
 222         'view_as_html',           // Integrated into SquirrelMail 1.5.1 core
 223         'xmailer'                 // Integrated into SquirrelMail 1.2 core
 224         );
 225
 226 if (isset($plugins[0])) {
 227     foreach($plugins as $plugin) {
 228         if(!file_exists(SM_PATH .'plugins/'.$plugin)) {
 229             do_err('You have enabled the <i>'.$plugin.'</i> plugin, but I cannot find it.', FALSE);
 230         } elseif (!is_readable(SM_PATH .'plugins/'.$plugin.'/setup.php')) {
 231             do_err('You have enabled the <i>'.$plugin.'</i> plugin, but I cannot read its setup.php file.', FALSE);
 232         } elseif (in_array($plugin, $bad_plugins)) {
 233             do_err('You have enabled the <i>'.$plugin.'</i> plugin, which causes problems with this version of SquirrelMail. Please check the ReleaseNotes or other documentation for more information.', false);
 234         }
 235     }
 236     echo $IND . "Plugins OK.<br />\n";
 237 } else {
 238     echo $IND . "Plugins are not enabled in config.<br />\n";
 239 }
 240 foreach($theme as $thm) {
 241     if(!file_exists($thm['PATH'])) {
 242         do_err('You have enabled the <i>'.$thm['NAME'].'</i> theme but I cannot find it ('.$thm['PATH'].').', FALSE);
 243     } elseif(!is_readable($thm['PATH'])) {
 244         do_err('You have enabled the <i>'.$thm['NAME'].'</i> theme but I cannot read it ('.$thm['PATH'].').', FALSE);
 245     }
 246 }
 247
 248 echo $IND . "Themes OK.<br />\n";
 249
 250 if ( $squirrelmail_default_language != 'en_US' ) {
 251     $loc_path = SM_PATH .'locale/'.$squirrelmail_default_language.'/LC_MESSAGES/squirrelmail.mo';
 252     if( ! file_exists( $loc_path ) ) {
 253         do_err('You have set <i>' . $squirrelmail_default_language .
 254                 '</i> as your default language, but I cannot find this translation (should be '.
 255                 'in <tt>' . $loc_path . '</tt>). Please note that you have to download translations '.
 256                 'separately from the main SquirrelMail package.', FALSE);
 257     } elseif ( ! is_readable( $loc_path ) ) {
 258         do_err('You have set <i>' . $squirrelmail_default_language .
 259                 '</i> as your default language, but I cannot read this translation (file '.
 260                 'in <tt>' . $loc_path . '</tt> unreadable).', FALSE);
 261     } else {
 262         echo $IND . "Default language OK.<br />\n";
 263     }
 264 } else {
 265     echo $IND . "Default language OK.<br />\n";
 266 }
 267
 268 echo $IND . "Base URL detected as: <tt>" . htmlspecialchars(get_location()) . "</tt><br />\n";
 269
 270 /* check minimal requirements for other security options */
 271
 272 /* imaps or ssmtp */
 273 if($use_smtp_tls == 1 || $use_imap_tls == 1) {
 274     if(!check_php_version(4,3,0)) {
 275         do_err('You need at least PHP 4.3.0 for SMTP/IMAP TLS!');
 276     }
 277     if(!extension_loaded('openssl')) {
 278         do_err('You need the openssl PHP extension to use SMTP/IMAP TLS!');
 279     }
 280 }
 281 /* starttls extensions */
 282 if($use_smtp_tls === 2 || $use_imap_tls === 2) {
 283     if (! function_exists('stream_socket_enable_crypto')) {
 284         do_err('If you want to use STARTTLS extension, you need stream_socket_enable_crypto() function from PHP 5.1.0 and newer.');
 285     }
 286 }
 287 /* digest-md5 */
 288 if ($smtp_auth_mech=='digest-md5' || $imap_auth_mech =='digest-md5') {
 289     if (!extension_loaded('xml')) {
 290         do_err('You need the PHP XML extension to use Digest-MD5 authentication!');
 291     }
 292 }
 293
 294 /* check outgoing mail */
 295
 296 echo "Checking outgoing mail service....<br />\n";
 297
 298 if($useSendmail) {
 299     // is_executable also checks for existance, but we want to be as precise as possible with the errors
 300     if(!file_exists($sendmail_path)) {
 301         do_err("Location of sendmail program incorrect ($sendmail_path)!");
 302     }
 303     if(!is_executable($sendmail_path)) {
 304         do_err("I cannot execute the sendmail program ($sendmail_path)!");
 305     }
 306
 307     echo $IND . "sendmail OK<br />\n";
 308 } else {
 309     $stream = fsockopen( ($use_smtp_tls==1?'tls://':'').$smtpServerAddress, $smtpPort,
 310             $errorNumber, $errorString);
 311     if(!$stream) {
 312         do_err("Error connecting to SMTP server \"$smtpServerAddress:$smtpPort\".".
 313                 "Server error: ($errorNumber) ".htmlspecialchars($errorString));
 314     }
 315
 316     // check for SMTP code; should be 2xx to allow us access
 317     $smtpline = fgets($stream, 1024);
 318     if(((int) $smtpline{0}) > 3) {
 319         do_err("Error connecting to SMTP server. Server error: ".
 320                 htmlspecialchars($smtpline));
 321     }
 322
 323     /* smtp starttls checks */
 324     if ($use_smtp_tls===2) {
 325         // if something breaks, script should close smtp connection on exit.
 326
 327         // say helo
 328         fwrite($stream,"EHLO $client_ip\r\n");
 329
 330         $ehlo=array();
 331         $ehlo_error = false;
 332         while ($line=fgets($stream, 1024)){
 333             if (preg_match("/^250(-|\s)(\S*)\s+(\S.*)/",$line,$match)||
 334                     preg_match("/^250(-|\s)(\S*)\s+/",$line,$match)) {
 335                 if (!isset($match[3])) {
 336                     // simple one word extension
 337                     $ehlo[strtoupper($match[2])]='';
 338                 } else {
 339                     // ehlo-keyword + ehlo-param
 340                     $ehlo[strtoupper($match[2])]=trim($match[3]);
 341                 }
 342                 if ($match[1]==' ') {
 343                     $ret = $line;
 344                     break;
 345                 }
 346             } else {
 347                 //
 348                 $ehlo_error = true;
 349                 $ehlo[]=$line;
 350                 break;
 351             }
 352         }
 353         if ($ehlo_error) {
 354             do_err('SMTP EHLO failed. You need ESMTP support for SMTP STARTTLS');
 355         } elseif (!array_key_exists('STARTTLS',$ehlo)) {
 356             do_err('STARTTLS support is not declared by SMTP server.');
 357         }
 358
 359         fwrite($stream,"STARTTLS\r\n");
 360         $starttls_response=fgets($stream, 1024);
 361         if ($starttls_response[0]!=2) {
 362             $starttls_cmd_err = 'SMTP STARTTLS failed. Server replied: '
 363                 .htmlspecialchars($starttls_response);
 364             do_err($starttls_cmd_err);
 365         } elseif(! stream_socket_enable_crypto($stream,true,STREAM_CRYPTO_METHOD_TLS_CLIENT)) {
 366             do_err('Failed to enable encryption on SMTP STARTTLS connection.');
 367         } else {
 368             echo $IND . "SMTP STARTTLS extension looks OK.<br />\n";
 369         }
 370         // According to RFC we should second ehlo call here.
 371     }
 372
 373     fputs($stream, 'QUIT');
 374     fclose($stream);
 375     echo $IND . 'SMTP server OK (<tt><small>'.
 376             trim(htmlspecialchars($smtpline))."</small></tt>)<br />\n";
 377
 378     /* POP before SMTP */
 379     if($pop_before_smtp) {
 380         $stream = fsockopen($smtpServerAddress, 110, $err_no, $err_str);
 381         if (!$stream) {
 382             do_err("Error connecting to POP Server ($smtpServerAddress:110) "
 383                 . $err_no . ' : ' . htmlspecialchars($err_str));
 384         }
 385
 386         $tmp = fgets($stream, 1024);
 387         if (substr($tmp, 0, 3) != '+OK') {
 388             do_err("Error connecting to POP Server ($smtpServerAddress:110)"
 389                 . ' '.htmlspecialchars($tmp));
 390         }
 391         fputs($stream, 'QUIT');
 392         fclose($stream);
 393         echo $IND . "POP-before-SMTP OK.<br />\n";
 394     }
 395 }
 396
 397 /**
 398  * Check the IMAP server
 399  */
 400 echo "Checking IMAP service....<br />\n";
 401
 402 /** Can we open a connection? */
 403 $stream = fsockopen( ($use_imap_tls==1?'tls://':'').$imapServerAddress, $imapPort,
 404         $errorNumber, $errorString);
 405 if(!$stream) {
 406     do_err("Error connecting to IMAP server \"$imapServerAddress:$imapPort\".".
 407             "Server error: ($errorNumber) ".
 408             htmlspecialchars($errorString));
 409 }
 410
 411 /** Is the first response 'OK'? */
 412 $imapline = fgets($stream, 1024);
 413 if(substr($imapline, 0,4) != '* OK') {
 414     do_err('Error connecting to IMAP server. Server error: '.
 415             htmlspecialchars($imapline));
 416 }
 417
 418 echo $IND . 'IMAP server ready (<tt><small>'.
 419     htmlspecialchars(trim($imapline))."</small></tt>)<br />\n";
 420
 421 /** Check capabilities */
 422 fputs($stream, "A001 CAPABILITY\r\n");
 423 $capline = '';
 424 while ($line=fgets($stream, 1024)){
 425     if (preg_match("/A001.*/",$line)) {
 426         break;
 427     } else {
 428         $capline.=$line;
 429     }
 430 }
 431
 432 /* don't display capabilities before STARTTLS */
 433 if ($use_imap_tls===2 && stristr($capline, 'STARTTLS') === false) {
 434     do_err('Your server doesn\'t support STARTTLS.');
 435 } elseif($use_imap_tls===2) {
 436     /* try starting starttls */
 437     fwrite($stream,"A002 STARTTLS\r\n");
 438     $starttls_line=fgets($stream, 1024);
 439     if (! preg_match("/^A002 OK.*/i",$starttls_line)) {
 440         $imap_starttls_err = 'IMAP STARTTLS failed. Server replied: '
 441             .htmlspecialchars($starttls_line);
 442         do_err($imap_starttls_err);
 443     } elseif (! stream_socket_enable_crypto($stream,true,STREAM_CRYPTO_METHOD_TLS_CLIENT)) {
 444         do_err('Failed to enable encryption on IMAP connection.');
 445     } else {
 446         echo $IND . "IMAP STARTTLS extension looks OK.<br />\n";
 447     }
 448
 449     // get new capability line
 450     fwrite($stream,"A003 CAPABILITY\r\n");
 451     $capline='';
 452     while ($line=fgets($stream, 1024)){
 453         if (preg_match("/A003.*/",$line)) {
 454             break;
 455         } else {
 456             $capline.=$line;
 457         }
 458     }
 459 }
 460
 461 echo $IND . 'Capabilities: <tt>'.htmlspecialchars($capline)."</tt><br />\n";
 462
 463 if($imap_auth_mech == 'login' && stristr($capline, 'LOGINDISABLED') !== FALSE) {
 464     do_err('Your server doesn\'t allow plaintext logins. '.
 465             'Try enabling another authentication mechanism like CRAM-MD5, DIGEST-MD5 or TLS-encryption '.
 466             'in the SquirrelMail configuration.', FALSE);
 467 }
 468
 469 /** OK, close connection */
 470 fputs($stream, "A004 LOGOUT\r\n");
 471 fclose($stream);
 472
 473 echo "Checking internationalization (i18n) settings...<br />\n";
 474 echo "$IND gettext - ";
 475 if (function_exists('gettext')) {
 476     echo 'Gettext functions are available.'
 477         .' On some systems you must have appropriate system locales compiled.'
 478         ."<br />\n";
 479
 480     /* optional setlocale() tests. Should work only on glibc systems. */
 481     if (sqgetGlobalVar('testlocales',$testlocales,SQ_GET)) {
 482         include_once(SM_PATH . 'functions/i18n.php');
 483         echo $IND . $IND . 'Testing translations:<br>';
 484         foreach ($languages as $lang_code => $lang_data) {
 485             /* don't test aliases */
 486             if (isset($lang_data['NAME'])) {
 487                 /* locale can be $lang_code or $lang_data['LOCALE'] */
 488                 if (isset($lang_data['LOCALE'])) {
 489                     $setlocale = $lang_data['LOCALE'];
 490                 } else {
 491                     $setlocale = $lang_code;
 492                 }
 493                 /* prepare information about tested locales */
 494                 if (is_array($setlocale)) {
 495                     $display_locale = implode(', ',$setlocale);
 496                     $locale_count = count($setlocale);
 497                 } else {
 498                     $display_locale = $setlocale;
 499                     $locale_count = 1;
 500                 }
 501                 $tested_locales_msg = 'Tested '.htmlspecialchars($display_locale).' '
 502                     .($locale_count>1 ? 'locales':'locale'). '.';
 503
 504                 echo $IND . $IND .$IND . $lang_data['NAME'].' (' .$lang_code. ') - ';
 505                 $retlocale = sq_setlocale(LC_ALL,$setlocale);
 506                 if (is_bool($retlocale)) {
 507                     echo '<font color="red">unsupported</font>. ';
 508                     echo $tested_locales_msg;
 509                 } else {
 510                     echo 'supported. '
 511                         .$tested_locales_msg
 512                         .' setlocale() returned "'.htmlspecialchars($retlocale).'"';
 513                 }
 514                 echo "<br />\n";
 515             }
 516         }
 517         echo $IND . $IND . '<a href="configtest.php">Don\'t test translations</a>';
 518     } else {
 519         echo $IND . $IND . '<a href="configtest.php?testlocales=1">Test translations</a>. '
 520             .'This test is not accurate and might work only on some systems.'
 521             ."\n";
 522     }
 523     echo "<br />\n";
 524     /* end of translation tests */
 525 } else {
 526     echo 'Gettext functions are unavailable.'
 527         .' SquirrelMail will use slower internal gettext functions.'
 528         ."<br />\n";
 529 }
 530 echo "$IND mbstring - ";
 531 if (function_exists('mb_detect_encoding')) {
 532     echo "Mbstring functions are available.<br />\n";
 533 } else {
 534     echo 'Mbstring functions are unavailable.'
 535         ." Japanese translation won't work.<br />\n";
 536 }
 537 echo "$IND recode - ";
 538 if (function_exists('recode')) {
 539     echo "Recode functions are available.<br />\n";
 540 } elseif (isset($use_php_recode) && $use_php_recode) {
 541     echo "Recode functions are unavailable.<br />\n";
 542     do_err('Your configuration requires recode support, but recode support is missing.');
 543 } else {
 544     echo "Recode functions are unavailable.<br />\n";
 545 }
 546 echo "$IND iconv - ";
 547 if (function_exists('iconv')) {
 548     echo "Iconv functions are available.<br />\n";
 549 } elseif (isset($use_php_iconv) && $use_php_iconv) {
 550     echo "Iconv functions are unavailable.<br />\n";
 551     do_err('Your configuration requires iconv support, but iconv support is missing.');
 552 } else {
 553     echo "Iconv functions are unavailable.<br />\n";
 554 }
 555 // same test as in include/validate.php
 556 echo "$IND timezone - ";
 557 if ( (!ini_get('safe_mode')) ||
 558         !strcmp(ini_get('safe_mode_allowed_env_vars'),'') ||
 559         preg_match('/^([\w_]+,)*TZ/', ini_get('safe_mode_allowed_env_vars')) ) {
 560     echo "Webmail users can change their time zone settings. \n";
 561 } else {
 562     echo "Webmail users can't change their time zone settings. \n";
 563 }
 564 if (isset($_ENV['TZ'])) {
 565     echo 'Default time zone is '.htmlspecialchars($_ENV['TZ']);
 566 } else {
 567     echo 'Current time zone is '.date('T');
 568 }
 569 echo ".<br />\n";
 570
 571 // Pear DB tests
 572 echo "Checking database functions...<br />\n";
 573 if($addrbook_dsn || $prefs_dsn || $addrbook_global_dsn) {
 574     @include_once('DB.php');
 575     if (class_exists('DB')) {
 576         echo "$IND PHP Pear DB support is present.<br />\n";
 577         $db_functions=array(
 578                 'dbase' => 'dbase_open',
 579                 'fbsql' => 'fbsql_connect',
 580                 'interbase' => 'ibase_connect',
 581                 'informix' => 'ifx_connect',
 582                 'msql' => 'msql_connect',
 583                 'mssql' => 'mssql_connect',
 584                 'mysql' => 'mysql_connect',
 585                 'mysqli' => 'mysqli_connect',
 586                 'oci8' => 'ocilogon',
 587                 'odbc' => 'odbc_connect',
 588                 'pgsql' => 'pg_connect',
 589                 'sqlite' => 'sqlite_open',
 590                 'sybase' => 'sybase_connect'
 591                 );
 592
 593         $dsns = array();
 594         if($prefs_dsn) {
 595             $dsns['preferences'] = $prefs_dsn;
 596         }
 597         if($addrbook_dsn) {
 598             $dsns['addressbook'] = $addrbook_dsn;
 599         }
 600         if($addrbook_global_dsn) {
 601             $dsns['global addressbook'] = $addrbook_global_dsn;
 602         }
 603
 604         foreach($dsns as $type => $dsn) {
 605             $aDsn = explode(':', $dsn);
 606             $dbtype = array_shift($aDsn);
 607             if(isset($db_functions[$dbtype]) && function_exists($db_functions[$dbtype])) {
 608                 echo "$IND$dbtype database support present.<br />\n";
 609
 610                 // now, test this interface:
 611
 612                 $dbh = DB::connect($dsn, true);
 613                 if (DB::isError($dbh)) {
 614                     do_err('Database error: '. htmlspecialchars(DB::errorMessage($dbh)) .
 615                             ' in ' .$type .' DSN.');
 616                 }
 617                 $dbh->disconnect();
 618                 echo "$IND$type database connect successful.<br />\n";
 619
 620             } else {
 621                 do_err($dbtype.' database support not present!');
 622             }
 623         }
 624     } else {
 625         $db_error='Required PHP PEAR DB support is not available.'
 626             .' Is PEAR installed and is the include path set correctly to find <tt>DB.php</tt>?'
 627             .' The include path is now:<tt>' . ini_get('include_path') . '</tt>.';
 628         do_err($db_error);
 629     }
 630 } else {
 631     echo $IND."not using database functionality.<br />\n";
 632 }
 633
 634 // LDAP DB tests
 635 echo "Checking LDAP functions...<br />\n";
 636 if( empty($ldap_server) ) {
 637     echo $IND."not using LDAP functionality.<br />\n";
 638 } else {
 639     if ( !function_exists('ldap_connect') ) {
 640         do_err('Required LDAP support is not available.');
 641     } else {
 642         echo "$IND LDAP support present.<br />\n";
 643         foreach ( $ldap_server as $param ) {
 644
 645             $linkid = @ldap_connect($param['host'], (empty($param['port']) ? 389 : $param['port']) );
 646
 647             if ( $linkid ) {
 648                 echo "$IND LDAP connect to ".$param['host']." successful: ".$linkid."<br />\n";
 649
 650                 if ( !empty($param['protocol']) &&
 651                         !ldap_set_option($linkid, LDAP_OPT_PROTOCOL_VERSION, $param['protocol']) ) {
 652                     do_err('Unable to set LDAP protocol');
 653                 }
 654
 655                 if ( empty($param['binddn']) ) {
 656                     $bind = @ldap_bind($linkid);
 657                 } else {
 658                     $bind = @ldap_bind($param['binddn'], $param['bindpw']);
 659                 }
 660
 661                 if ( $bind ) {
 662                     echo "$IND LDAP Bind Successful <br />";
 663                 } else {
 664                     do_err('Unable to Bind to LDAP Server');
 665                 }
 666
 667                 @ldap_close($linkid);
 668             } else {
 669                 do_err('Connection to LDAP failed');
 670             }
 671         }
 672     }
 673 }
 674
 675 echo '<hr width="75%" align="center">';
 676 echo '<h2 align="center">Summary</h2>';
 677 $footer = '<hr width="75%" align="center">';
 678 if ($warnings) {
 679     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>';
 680     echo $footer;
 681 } else {
 682     print <<< EOF
 683 <p>Congratulations, your SquirrelMail setup looks fine to me!</p>
 684
 685 <p><a href="login.php">Login now</a></p>
 686
 687 </body>
 688 </html>
 689 EOF;
 690     echo $footer;
 691 }
 692 ?>