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
  21 /** force verbose error reporting and turn on display of errors */
  22 error_reporting(E_ALL);
  23 ini_set('display_errors',1);
  24
  25 /** Blockcopy from init.php. Cleans globals. */
  26 if ((bool) ini_get('register_globals') &&
  27     strtolower(ini_get('register_globals'))!='off') {
  28     /**
  29      * Remove all globals that are not reserved by PHP
  30      * 'value' and 'key' are used by foreach. Don't unset them inside foreach.
  31      */
  32     foreach ($GLOBALS as $key => $value) {
  33         switch($key) {
  34         case 'HTTP_POST_VARS':
  35         case '_POST':
  36         case 'HTTP_GET_VARS':
  37         case '_GET':
  38         case 'HTTP_COOKIE_VARS':
  39         case '_COOKIE':
  40         case 'HTTP_SERVER_VARS':
  41         case '_SERVER':
  42         case 'HTTP_ENV_VARS':
  43         case '_ENV':
  44         case 'HTTP_POST_FILES':
  45         case '_FILES':
  46         case '_REQUEST':
  47         case 'HTTP_SESSION_VARS':
  48         case '_SESSION':
  49         case 'GLOBALS':
  50         case 'key':
  51         case 'value':
  52             break;
  53         default:
  54             unset($GLOBALS[$key]);
  55         }
  56     }
  57     // Unset variables used in foreach
  58     unset($GLOBALS['key']);
  59     unset($GLOBALS['value']);
  60 }
  61
  62
  63 /**
  64  * Displays error messages and warnings
  65  * @param string $str message
  66  * @param boolean $fatal fatal error or only warning
  67  */
  68 function do_err($str, $fatal = TRUE) {
  69     global $IND, $warnings;
  70     $level = $fatal ? 'FATAL ERROR:' : 'WARNING:';
  71     echo '<p>'.$IND.'<font color="red"><b>' . $level . '</b></font> ' .$str. "</p>\n";
  72     if($fatal) {
  73         echo '</body></html>';
  74         exit;
  75     } else {
  76         $warnings++;
  77     }
  78 }
  79
  80 ob_implicit_flush();
  81 /** @ignore */
  82 define('SM_PATH', '../');
  83 /** load minimal function set */
  84 require(SM_PATH . 'functions/global.php');
  85 require(SM_PATH . 'functions/strings.php');
  86
  87 /** set default value in order to block remote access */
  88 $allow_remote_configtest=false;
  89
  90 /** Load all configuration files before output begins */
  91
  92 /* load default configuration */
  93 require(SM_PATH . 'config/config_default.php');
  94 /* reset arrays in default configuration */
  95 $ldap_server = array();
  96 $plugins = array();
  97 $fontsets = array();
  98 $theme = array();
  99 $theme[0]['PATH'] = SM_PATH . 'themes/default_theme.php';
 100 $theme[0]['NAME'] = 'Default';
 101 $aTemplateSet = array();
 102 $aTemplateSet[0]['ID'] = 'default';
 103 $aTemplateSet[0]['NAME'] = 'Default';
 104 /* load site configuration */
 105 if (file_exists(SM_PATH . 'config/config.php')) {
 106     require(SM_PATH . 'config/config.php');
 107 }
 108 /* load local configuration overrides */
 109 if (file_exists(SM_PATH . 'config/config_local.php')) {
 110     require(SM_PATH . 'config/config_local.php');
 111 }
 112
 113 /** Warning counter */
 114 $warnings = 0;
 115
 116 /** indent */
 117 $IND = str_repeat('&nbsp;',4);
 118
 119 /**
 120  * get_location starts session and must be run before output is started.
 121  */
 122 $test_location = get_location();
 123
 124 ?><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
 125   "http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
 126 <html>
 127 <head>
 128   <meta name="robots" content="noindex,nofollow">
 129   <title>SquirrelMail configtest</title>
 130 </head>
 131 <body>
 132 <h1>SquirrelMail configtest</h1>
 133
 134 <p>This script will try to check some aspects of your SquirrelMail configuration
 135 and point you to errors whereever it can find them. You need to go run <tt>conf.pl</tt>
 136 in the <tt>config/</tt> directory first before you run this script.</p>
 137
 138 <?php
 139
 140 $included = array_map('basename', get_included_files() );
 141 if(!in_array('config.php', $included)) {
 142     if(!file_exists(SM_PATH . 'config/config.php')) {
 143         do_err('Config file '.SM_PATH . 'config/config.php does not exist!<br />'.
 144                 'You need to run <tt>conf.pl</tt> first.');
 145     }
 146     do_err('Could not read '.SM_PATH.'config/config.php! Check file permissions.');
 147 }
 148 if(!in_array('strings.php', $included)) {
 149     do_err('Could not include '.SM_PATH.'functions/strings.php!<br />'.
 150             'Check permissions on that file.');
 151 }
 152
 153 /* Block remote use of script */
 154 if (! $allow_remote_configtest) {
 155     sqGetGlobalVar('REMOTE_ADDR',$client_ip,SQ_SERVER);
 156     sqGetGlobalVar('SERVER_ADDR',$server_ip,SQ_SERVER);
 157
 158     if ((! isset($client_ip) || $client_ip!='127.0.0.1') &&
 159             (! isset($client_ip) || ! isset($server_ip) || $client_ip!=$server_ip)) {
 160         do_err('Enable "Allow remote configtest" option in squirrelmail configuration in order to use this script.');
 161     }
 162 }
 163 /* checking PHP specs */
 164
 165 echo "<p><table>\n<tr><td>SquirrelMail version:</td><td><b>" . $version . "</b></td></tr>\n" .
 166     '<tr><td>Config file version:</td><td><b>' . $config_version . "</b></td></tr>\n" .
 167     '<tr><td>Config file last modified:</td><td><b>' .
 168     date ('d F Y H:i:s', filemtime(SM_PATH . 'config/config.php')) .
 169     "</b></td></tr>\n</table>\n</p>\n\n";
 170
 171 /* check $config_version */
 172 if ($config_version!='1.5.0') {
 173     do_err('Configuration file version does not match required version. Please update your configuration file.');
 174 }
 175
 176 echo "Checking PHP configuration...<br />\n";
 177
 178 if(!check_php_version(4,1,0)) {
 179     do_err('Insufficient PHP version: '. PHP_VERSION . '! Minimum required: 4.1.0');
 180 }
 181
 182 echo $IND . 'PHP version ' . PHP_VERSION . ' OK. (You have: ' . phpversion() . ". Minimum: 4.1.0)<br />\n";
 183 /* test for boolean false and any string that is not equal to 'off' */
 184 if ((bool) ini_get('register_globals') &&
 185     strtolower(ini_get('register_globals'))!='off') {
 186     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);
 187 }
 188 $php_exts = array('session','pcre');
 189 $diff = array_diff($php_exts, get_loaded_extensions());
 190 if(count($diff)) {
 191     do_err('Required PHP extensions missing: '.implode(', ',$diff) );
 192 }
 193
 194 echo $IND . "PHP extensions OK.<br />\n";
 195
 196 /* dangerous php settings */
 197 /**
 198  * mbstring.func_overload allows to replace original string and regexp functions
 199  * with their equivalents from php mbstring extension. It causes problems when
 200  * scripts analyze 8bit strings byte after byte or use 8bit strings in regexp tests.
 201  * Setting can be controlled in php.ini (php 4.2.0), webserver config (php 4.2.0)
 202  * and .htaccess files (php 4.3.5).
 203  */
 204 if (function_exists('mb_internal_encoding') &&
 205     check_php_version(4,2,0) &&
 206     (int)ini_get('mbstring.func_overload')!=0) {
 207     $mb_error='You have enabled mbstring overloading.'
 208         .' It can cause problems with SquirrelMail scripts that rely on single byte string functions.';
 209     do_err($mb_error);
 210 }
 211
 212 /* checking paths */
 213
 214 echo "Checking paths...<br />\n";
 215
 216 if(!file_exists($data_dir)) {
 217     // data_dir is not that important in db_setups.
 218     if (isset($prefs_dsn) && ! empty($prefs_dsn)) {
 219         $data_dir_error = "Data dir ($data_dir) does not exist!\n";
 220         echo $IND .'<font color="red"><b>ERROR:</b></font> ' . $data_dir_error;
 221     } else {
 222         do_err("Data dir ($data_dir) does not exist!");
 223     }
 224 }
 225 // don't check if errors
 226 if(!isset($data_dir_error) && !is_dir($data_dir)) {
 227     if (isset($prefs_dsn) && ! empty($prefs_dsn)) {
 228         $data_dir_error = "Data dir ($data_dir) is not a directory!\n";
 229         echo $IND . '<font color="red"><b>ERROR:</b></font> ' . $data_dir_error;
 230     } else {
 231         do_err("Data dir ($data_dir) is not a directory!");
 232     }
 233 }
 234 // datadir should be executable - but no clean way to test on that
 235 if(!isset($data_dir_error) && !is_writable($data_dir)) {
 236     if (isset($prefs_dsn) && ! empty($prefs_dsn)) {
 237         $data_dir_error = "Data dir ($data_dir) is not writable!\n";
 238         echo $IND . '<font color="red"><b>ERROR:</b></font> ' . $data_dir_error;
 239     } else {
 240         do_err("Data dir ($data_dir) is not writable!");
 241     }
 242 }
 243
 244 if (isset($data_dir_error)) {
 245     echo " Some plugins might need access to data directory.<br />\n";
 246 } else {
 247     // todo_ornot: actually write something and read it back.
 248     echo $IND . "Data dir OK.<br />\n";
 249 }
 250
 251 if($data_dir == $attachment_dir) {
 252     echo $IND . "Attachment dir is the same as data dir.<br />\n";
 253     if (isset($data_dir_error)) {
 254         do_err($data_dir_error);
 255     }
 256 } else {
 257     if(!file_exists($attachment_dir)) {
 258         do_err("Attachment dir ($attachment_dir) does not exist!");
 259     }
 260     if (!is_dir($attachment_dir)) {
 261         do_err("Attachment dir ($attachment_dir) is not a directory!");
 262     }
 263     if (!is_writable($attachment_dir)) {
 264         do_err("I cannot write to attachment dir ($attachment_dir)!");
 265     }
 266     echo $IND . "Attachment dir OK.<br />\n";
 267 }
 268
 269
 270 /* check plugins and themes */
 271 $bad_plugins = array(
 272         'attachment_common',      // Integrated into SquirrelMail 1.2 core
 273         'auto_prune_sent',        // Obsolete: See Proon Automatic Folder Pruning plugin
 274         'compose_new_window',     // Integrated into SquirrelMail 1.4 core
 275         'delete_move_next',       // Integrated into SquirrelMail 1.5 core
 276         'disk_quota',             // Obsolete: See Check Quota plugin
 277         'email_priority',         // Integrated into SquirrelMail 1.2 core
 278         'emoticons',              // Obsolete: See HTML Mail plugin
 279         'focus_change',           // Integrated into SquirrelMail 1.2 core
 280         'folder_settings',        // Integrated into SquirrelMail 1.5.1 core
 281         'global_sql_addressbook', // Integrated into SquirrelMail 1.4 core
 282         'hancock',                // Not Working: See Random Signature Taglines plugin
 283         'msg_flags',              // Integrated into SquirrelMail 1.5.1 core
 284         'message_source',         // Added to SquirrelMail 1.4 Core Plugins (message_details)
 285         'motd',                   // Integrated into SquirrelMail 1.2 core
 286         'paginator',              // Integrated into SquirrelMail 1.2 core
 287         'printer_friendly',       // Integrated into SquirrelMail 1.2 core
 288         'procfilter',             // Obsolete: See Server Side Filter plugin
 289         'redhat_php_cgi_fix',     // Integrated into SquirrelMail 1.1.1 core
 290         'send_to_semicolon',      // Integrated into SquirrelMail 1.4.1 core
 291         'spamassassin',           // Not working beyond SquirrelMail 1.2.7: See Spamassassin SpamFilter (Frontend) v2 plugin
 292         'sqcalendar',             // Added to SquirrelMail 1.2 Core Plugins (calendar)
 293         'sqclock',                // Integrated into SquirrelMail 1.2 core
 294         'sql_squirrel_logger',    // Obsolete: See Squirrel Logger plugin
 295         'tmda',                   // Obsolete: See TMDA Tools plugin
 296         'vacation',               // Obsolete: See Vacation Local plugin
 297         'view_as_html',           // Integrated into SquirrelMail 1.5.1 core
 298         'xmailer'                 // Integrated into SquirrelMail 1.2 core
 299         );
 300
 301 if (isset($plugins[0])) {
 302     foreach($plugins as $plugin) {
 303         if(!file_exists(SM_PATH .'plugins/'.$plugin)) {
 304             do_err('You have enabled the <i>'.$plugin.'</i> plugin, but I cannot find it.', FALSE);
 305         } elseif (!is_readable(SM_PATH .'plugins/'.$plugin.'/setup.php')) {
 306             do_err('You have enabled the <i>'.$plugin.'</i> plugin, but I cannot read its setup.php file.', FALSE);
 307         } elseif (in_array($plugin, $bad_plugins)) {
 308             do_err('You have enabled the <i>'.$plugin.'</i> plugin, which causes problems with this version of SquirrelMail. Please check the ReleaseNotes or other documentation for more information.', false);
 309         }
 310     }
 311     // load plugin functions
 312     include_once(SM_PATH . 'functions/plugin.php');
 313     // turn on output buffering in order to prevent output of new lines
 314     ob_start();
 315     foreach ($plugins as $name) {
 316         use_plugin($name);
 317     }
 318     // get output and remove whitespace
 319     $output = trim(ob_get_contents());
 320     ob_end_clean();
 321     // if plugins output more than newlines and spacing, stop script execution.
 322     if (!empty($output)) {
 323         $plugin_load_error = 'Some output is produced when plugins are loaded.'
 324             .' Usually it means error. Output said: '.htmlspecialchars($output);
 325         do_err($plugin_load_error);
 326     }
 327     /**
 328      * Hook is added in 1.5.2. Plugins should print error message and return true
 329      * if there is an error in plugin.
 330      */
 331     $plugin_err = boolean_hook_function('configtest');
 332     if($plugin_err) {
 333         do_err('Some plugin tests failed.');
 334     } else {
 335         echo $IND . "Plugins OK.<br />\n";
 336     }
 337 } else {
 338     echo $IND . "Plugins are not enabled in config.<br />\n";
 339 }
 340 foreach($theme as $thm) {
 341     if(!file_exists($thm['PATH'])) {
 342         do_err('You have enabled the <i>'.$thm['NAME'].'</i> theme but I cannot find it ('.$thm['PATH'].').', FALSE);
 343     } elseif(!is_readable($thm['PATH'])) {
 344         do_err('You have enabled the <i>'.$thm['NAME'].'</i> theme but I cannot read it ('.$thm['PATH'].').', FALSE);
 345     }
 346 }
 347
 348 echo $IND . "Themes OK.<br />\n";
 349
 350 if ( $squirrelmail_default_language != 'en_US' ) {
 351     $loc_path = SM_PATH .'locale/'.$squirrelmail_default_language.'/LC_MESSAGES/squirrelmail.mo';
 352     if( ! file_exists( $loc_path ) ) {
 353         do_err('You have set <i>' . $squirrelmail_default_language .
 354                 '</i> as your default language, but I cannot find this translation (should be '.
 355                 'in <tt>' . $loc_path . '</tt>). Please note that you have to download translations '.
 356                 'separately from the main SquirrelMail package.', FALSE);
 357     } elseif ( ! is_readable( $loc_path ) ) {
 358         do_err('You have set <i>' . $squirrelmail_default_language .
 359                 '</i> as your default language, but I cannot read this translation (file '.
 360                 'in <tt>' . $loc_path . '</tt> unreadable).', FALSE);
 361     } else {
 362         echo $IND . "Default language OK.<br />\n";
 363     }
 364 } else {
 365     echo $IND . "Default language OK.<br />\n";
 366 }
 367
 368 echo $IND . "Base URL detected as: <tt>" . htmlspecialchars($test_location) .
 369     "</tt> (location base " . (empty($config_location_base) ? 'autodetected' : 'set to <tt>' .
 370     htmlspecialchars($config_location_base)."</tt>") . ")<br />\n";
 371
 372 /* check minimal requirements for other security options */
 373
 374 /* imaps or ssmtp */
 375 if($use_smtp_tls == 1 || $use_imap_tls == 1) {
 376     if(!check_php_version(4,3,0)) {
 377         do_err('You need at least PHP 4.3.0 for SMTP/IMAP TLS!');
 378     }
 379     if(!extension_loaded('openssl')) {
 380         do_err('You need the openssl PHP extension to use SMTP/IMAP TLS!');
 381     }
 382 }
 383 /* starttls extensions */
 384 if($use_smtp_tls === 2 || $use_imap_tls === 2) {
 385     if (! function_exists('stream_socket_enable_crypto')) {
 386         do_err('If you want to use STARTTLS extension, you need stream_socket_enable_crypto() function from PHP 5.1.0 and newer.');
 387     }
 388 }
 389 /* digest-md5 */
 390 if ($smtp_auth_mech=='digest-md5' || $imap_auth_mech =='digest-md5') {
 391     if (!extension_loaded('xml')) {
 392         do_err('You need the PHP XML extension to use Digest-MD5 authentication!');
 393     }
 394 }
 395
 396 /* check outgoing mail */
 397
 398 echo "Checking outgoing mail service....<br />\n";
 399
 400 if($useSendmail) {
 401     // is_executable also checks for existance, but we want to be as precise as possible with the errors
 402     if(!file_exists($sendmail_path)) {
 403         do_err("Location of sendmail program incorrect ($sendmail_path)!");
 404     }
 405     if(!is_executable($sendmail_path)) {
 406         do_err("I cannot execute the sendmail program ($sendmail_path)!");
 407     }
 408
 409     echo $IND . "sendmail OK<br />\n";
 410 } else {
 411     $stream = fsockopen( ($use_smtp_tls==1?'tls://':'').$smtpServerAddress, $smtpPort,
 412             $errorNumber, $errorString);
 413     if(!$stream) {
 414         do_err("Error connecting to SMTP server \"$smtpServerAddress:$smtpPort\".".
 415                 "Server error: ($errorNumber) ".htmlspecialchars($errorString));
 416     }
 417
 418     // check for SMTP code; should be 2xx to allow us access
 419     $smtpline = fgets($stream, 1024);
 420     if(((int) $smtpline{0}) > 3) {
 421         do_err("Error connecting to SMTP server. Server error: ".
 422                 htmlspecialchars($smtpline));
 423     }
 424
 425     /* smtp starttls checks */
 426     if ($use_smtp_tls===2) {
 427         // if something breaks, script should close smtp connection on exit.
 428
 429         // say helo
 430         fwrite($stream,"EHLO $client_ip\r\n");
 431
 432         $ehlo=array();
 433         $ehlo_error = false;
 434         while ($line=fgets($stream, 1024)){
 435             if (preg_match("/^250(-|\s)(\S*)\s+(\S.*)/",$line,$match)||
 436                     preg_match("/^250(-|\s)(\S*)\s+/",$line,$match)) {
 437                 if (!isset($match[3])) {
 438                     // simple one word extension
 439                     $ehlo[strtoupper($match[2])]='';
 440                 } else {
 441                     // ehlo-keyword + ehlo-param
 442                     $ehlo[strtoupper($match[2])]=trim($match[3]);
 443                 }
 444                 if ($match[1]==' ') {
 445                     $ret = $line;
 446                     break;
 447                 }
 448             } else {
 449                 //
 450                 $ehlo_error = true;
 451                 $ehlo[]=$line;
 452                 break;
 453             }
 454         }
 455         if ($ehlo_error) {
 456             do_err('SMTP EHLO failed. You need ESMTP support for SMTP STARTTLS');
 457         } elseif (!array_key_exists('STARTTLS',$ehlo)) {
 458             do_err('STARTTLS support is not declared by SMTP server.');
 459         }
 460
 461         fwrite($stream,"STARTTLS\r\n");
 462         $starttls_response=fgets($stream, 1024);
 463         if ($starttls_response[0]!=2) {
 464             $starttls_cmd_err = 'SMTP STARTTLS failed. Server replied: '
 465                 .htmlspecialchars($starttls_response);
 466             do_err($starttls_cmd_err);
 467         } elseif(! stream_socket_enable_crypto($stream,true,STREAM_CRYPTO_METHOD_TLS_CLIENT)) {
 468             do_err('Failed to enable encryption on SMTP STARTTLS connection.');
 469         } else {
 470             echo $IND . "SMTP STARTTLS extension looks OK.<br />\n";
 471         }
 472         // According to RFC we should second ehlo call here.
 473     }
 474
 475     fputs($stream, 'QUIT');
 476     fclose($stream);
 477     echo $IND . 'SMTP server OK (<tt><small>'.
 478             trim(htmlspecialchars($smtpline))."</small></tt>)<br />\n";
 479
 480     /* POP before SMTP */
 481     if($pop_before_smtp) {
 482         $stream = fsockopen($smtpServerAddress, 110, $err_no, $err_str);
 483         if (!$stream) {
 484             do_err("Error connecting to POP Server ($smtpServerAddress:110) "
 485                 . $err_no . ' : ' . htmlspecialchars($err_str));
 486         }
 487
 488         $tmp = fgets($stream, 1024);
 489         if (substr($tmp, 0, 3) != '+OK') {
 490             do_err("Error connecting to POP Server ($smtpServerAddress:110)"
 491                 . ' '.htmlspecialchars($tmp));
 492         }
 493         fputs($stream, 'QUIT');
 494         fclose($stream);
 495         echo $IND . "POP-before-SMTP OK.<br />\n";
 496     }
 497 }
 498
 499 /**
 500  * Check the IMAP server
 501  */
 502 echo "Checking IMAP service....<br />\n";
 503
 504 /** Can we open a connection? */
 505 $stream = fsockopen( ($use_imap_tls==1?'tls://':'').$imapServerAddress, $imapPort,
 506         $errorNumber, $errorString);
 507 if(!$stream) {
 508     do_err("Error connecting to IMAP server \"$imapServerAddress:$imapPort\".".
 509             "Server error: ($errorNumber) ".
 510             htmlspecialchars($errorString));
 511 }
 512
 513 /** Is the first response 'OK'? */
 514 $imapline = fgets($stream, 1024);
 515 if(substr($imapline, 0,4) != '* OK') {
 516     do_err('Error connecting to IMAP server. Server error: '.
 517             htmlspecialchars($imapline));
 518 }
 519
 520 echo $IND . 'IMAP server ready (<tt><small>'.
 521     htmlspecialchars(trim($imapline))."</small></tt>)<br />\n";
 522
 523 /** Check capabilities */
 524 fputs($stream, "A001 CAPABILITY\r\n");
 525 $capline = '';
 526 while ($line=fgets($stream, 1024)){
 527     if (preg_match("/A001.*/",$line)) {
 528         break;
 529     } else {
 530         $capline.=$line;
 531     }
 532 }
 533
 534 /* don't display capabilities before STARTTLS */
 535 if ($use_imap_tls===2 && stristr($capline, 'STARTTLS') === false) {
 536     do_err('Your server doesn\'t support STARTTLS.');
 537 } elseif($use_imap_tls===2) {
 538     /* try starting starttls */
 539     fwrite($stream,"A002 STARTTLS\r\n");
 540     $starttls_line=fgets($stream, 1024);
 541     if (! preg_match("/^A002 OK.*/i",$starttls_line)) {
 542         $imap_starttls_err = 'IMAP STARTTLS failed. Server replied: '
 543             .htmlspecialchars($starttls_line);
 544         do_err($imap_starttls_err);
 545     } elseif (! stream_socket_enable_crypto($stream,true,STREAM_CRYPTO_METHOD_TLS_CLIENT)) {
 546         do_err('Failed to enable encryption on IMAP connection.');
 547     } else {
 548         echo $IND . "IMAP STARTTLS extension looks OK.<br />\n";
 549     }
 550
 551     // get new capability line
 552     fwrite($stream,"A003 CAPABILITY\r\n");
 553     $capline='';
 554     while ($line=fgets($stream, 1024)){
 555         if (preg_match("/A003.*/",$line)) {
 556             break;
 557         } else {
 558             $capline.=$line;
 559         }
 560     }
 561 }
 562
 563 echo $IND . 'Capabilities: <tt>'.htmlspecialchars($capline)."</tt><br />\n";
 564
 565 if($imap_auth_mech == 'login' && stristr($capline, 'LOGINDISABLED') !== FALSE) {
 566     do_err('Your server doesn\'t allow plaintext logins. '.
 567             'Try enabling another authentication mechanism like CRAM-MD5, DIGEST-MD5 or TLS-encryption '.
 568             'in the SquirrelMail configuration.', FALSE);
 569 }
 570
 571 if (stristr($capline, 'XMAGICTRASH') !== false) {
 572     $magic_trash = 'It looks like IMAP_MOVE_EXPUNGE_TO_TRASH option is turned on '
 573         .'in your Courier IMAP configuration. Courier does not provide tools that '
 574         .'allow to detect folder used for Trash or commands are not documented. '
 575         .'SquirrelMail can\'t detect special trash folder. SquirrelMail manages '
 576         .'all message deletion or move operations internally and '
 577         .'IMAP_MOVE_EXPUNGE_TO_TRASH option can cause errors in message and '
 578         .'folder management operations. Please turn off IMAP_MOVE_EXPUNGE_TO_TRASH '
 579         .'option in Courier imapd configuration.';
 580     do_err($magic_trash,false);
 581 }
 582
 583 /* add warning about IMAP delivery */
 584 if (stristr($capline, 'XCOURIEROUTBOX') !== false) {
 585     $courier_outbox = 'OUTBOX setting is enabled in your Courier imapd '
 586         .'configuration. SquirrelMail uses standard SMTP protocol or sendmail '
 587         .'binary to send emails. Courier IMAP delivery method is not supported'
 588         .' and can create duplicate email messages.';
 589     do_err($courier_outbox,false);
 590 }
 591
 592 /** OK, close connection */
 593 fputs($stream, "A004 LOGOUT\r\n");
 594 fclose($stream);
 595
 596 echo "Checking internationalization (i18n) settings...<br />\n";
 597 echo "$IND gettext - ";
 598 if (function_exists('gettext')) {
 599     echo 'Gettext functions are available.'
 600         .' On some systems you must have appropriate system locales compiled.'
 601         ."<br />\n";
 602
 603     /* optional setlocale() tests. Should work only on glibc systems. */
 604     if (sqgetGlobalVar('testlocales',$testlocales,SQ_GET)) {
 605         include_once(SM_PATH . 'include/languages.php');
 606         echo $IND . $IND . 'Testing translations:<br>';
 607         foreach ($languages as $lang_code => $lang_data) {
 608             /* don't test aliases */
 609             if (isset($lang_data['NAME'])) {
 610                 /* locale can be $lang_code or $lang_data['LOCALE'] */
 611                 if (isset($lang_data['LOCALE'])) {
 612                     $setlocale = $lang_data['LOCALE'];
 613                 } else {
 614                     $setlocale = $lang_code;
 615                 }
 616                 /* prepare information about tested locales */
 617                 if (is_array($setlocale)) {
 618                     $display_locale = implode(', ',$setlocale);
 619                     $locale_count = count($setlocale);
 620                 } else {
 621                     $display_locale = $setlocale;
 622                     $locale_count = 1;
 623                 }
 624                 $tested_locales_msg = 'Tested '.htmlspecialchars($display_locale).' '
 625                     .($locale_count>1 ? 'locales':'locale'). '.';
 626
 627                 echo $IND . $IND .$IND . $lang_data['NAME'].' (' .$lang_code. ') - ';
 628                 $retlocale = sq_setlocale(LC_ALL,$setlocale);
 629                 if (is_bool($retlocale)) {
 630                     echo '<font color="red">unsupported</font>. ';
 631                     echo $tested_locales_msg;
 632                 } else {
 633                     echo 'supported. '
 634                         .$tested_locales_msg
 635                         .' setlocale() returned "'.htmlspecialchars($retlocale).'"';
 636                 }
 637                 echo "<br />\n";
 638             }
 639         }
 640         echo $IND . $IND . '<a href="configtest.php">Don\'t test translations</a>';
 641     } else {
 642         echo $IND . $IND . '<a href="configtest.php?testlocales=1">Test translations</a>. '
 643             .'This test is not accurate and might work only on some systems.'
 644             ."\n";
 645     }
 646     echo "<br />\n";
 647     /* end of translation tests */
 648 } else {
 649     echo 'Gettext functions are unavailable.'
 650         .' SquirrelMail will use slower internal gettext functions.'
 651         ."<br />\n";
 652 }
 653 echo "$IND mbstring - ";
 654 if (function_exists('mb_detect_encoding')) {
 655     echo "Mbstring functions are available.<br />\n";
 656 } else {
 657     echo 'Mbstring functions are unavailable.'
 658         ." Japanese translation won't work.<br />\n";
 659 }
 660 echo "$IND recode - ";
 661 if (function_exists('recode')) {
 662     echo "Recode functions are available.<br />\n";
 663 } elseif (isset($use_php_recode) && $use_php_recode) {
 664     echo "Recode functions are unavailable.<br />\n";
 665     do_err('Your configuration requires recode support, but recode support is missing.');
 666 } else {
 667     echo "Recode functions are unavailable.<br />\n";
 668 }
 669 echo "$IND iconv - ";
 670 if (function_exists('iconv')) {
 671     echo "Iconv functions are available.<br />\n";
 672 } elseif (isset($use_php_iconv) && $use_php_iconv) {
 673     echo "Iconv functions are unavailable.<br />\n";
 674     do_err('Your configuration requires iconv support, but iconv support is missing.');
 675 } else {
 676     echo "Iconv functions are unavailable.<br />\n";
 677 }
 678 // same test as in include/init.php + date_default_timezone_set check
 679 echo "$IND timezone - ";
 680 if ( (!ini_get('safe_mode')) || function_exists('date_default_timezone_set') ||
 681         !strcmp(ini_get('safe_mode_allowed_env_vars'),'') ||
 682         preg_match('/^([\w_]+,)*TZ/', ini_get('safe_mode_allowed_env_vars')) ) {
 683     echo "Webmail users can change their time zone settings. \n";
 684 } else {
 685     echo "Webmail users can't change their time zone settings. \n";
 686 }
 687 if (isset($_ENV['TZ'])) {
 688     echo 'Default time zone is '.htmlspecialchars($_ENV['TZ']);
 689 } else {
 690     echo 'Current time zone is '.date('T');
 691 }
 692 echo ".<br />\n";
 693
 694 // Pear DB tests
 695 echo "Checking database functions...<br />\n";
 696 if($addrbook_dsn || $prefs_dsn || $addrbook_global_dsn) {
 697     @include_once('DB.php');
 698     if (class_exists('DB')) {
 699         echo "$IND PHP Pear DB support is present.<br />\n";
 700         $db_functions=array(
 701                 'dbase' => 'dbase_open',
 702                 'fbsql' => 'fbsql_connect',
 703                 'interbase' => 'ibase_connect',
 704                 'informix' => 'ifx_connect',
 705                 'msql' => 'msql_connect',
 706                 'mssql' => 'mssql_connect',
 707                 'mysql' => 'mysql_connect',
 708                 'mysqli' => 'mysqli_connect',
 709                 'oci8' => 'ocilogon',
 710                 'odbc' => 'odbc_connect',
 711                 'pgsql' => 'pg_connect',
 712                 'sqlite' => 'sqlite_open',
 713                 'sybase' => 'sybase_connect'
 714                 );
 715
 716         $dsns = array();
 717         if($prefs_dsn) {
 718             $dsns['preferences'] = $prefs_dsn;
 719         }
 720         if($addrbook_dsn) {
 721             $dsns['addressbook'] = $addrbook_dsn;
 722         }
 723         if($addrbook_global_dsn) {
 724             $dsns['global addressbook'] = $addrbook_global_dsn;
 725         }
 726
 727         foreach($dsns as $type => $dsn) {
 728             $aDsn = explode(':', $dsn);
 729             $dbtype = array_shift($aDsn);
 730             if(isset($db_functions[$dbtype]) && function_exists($db_functions[$dbtype])) {
 731                 echo "$IND$dbtype database support present.<br />\n";
 732
 733                 // now, test this interface:
 734
 735                 $dbh = DB::connect($dsn, true);
 736                 if (DB::isError($dbh)) {
 737                     do_err('Database error: '. htmlspecialchars(DB::errorMessage($dbh)) .
 738                             ' in ' .$type .' DSN.');
 739                 }
 740                 $dbh->disconnect();
 741                 echo "$IND$type database connect successful.<br />\n";
 742
 743             } else {
 744                 do_err($dbtype.' database support not present!');
 745             }
 746         }
 747     } else {
 748         $db_error='Required PHP PEAR DB support is not available.'
 749             .' Is PEAR installed and is the include path set correctly to find <tt>DB.php</tt>?'
 750             .' The include path is now:<tt>' . ini_get('include_path') . '</tt>.';
 751         do_err($db_error);
 752     }
 753 } else {
 754     echo $IND."not using database functionality.<br />\n";
 755 }
 756
 757 // LDAP DB tests
 758 echo "Checking LDAP functions...<br />\n";
 759 if( empty($ldap_server) ) {
 760     echo $IND."not using LDAP functionality.<br />\n";
 761 } else {
 762     if ( !function_exists('ldap_connect') ) {
 763         do_err('Required LDAP support is not available.');
 764     } else {
 765         echo "$IND LDAP support present.<br />\n";
 766         foreach ( $ldap_server as $param ) {
 767
 768             $linkid = @ldap_connect($param['host'], (empty($param['port']) ? 389 : $param['port']) );
 769
 770             if ( $linkid ) {
 771                 echo "$IND LDAP connect to ".$param['host']." successful: ".$linkid."<br />\n";
 772
 773                 if ( !empty($param['protocol']) &&
 774                         !ldap_set_option($linkid, LDAP_OPT_PROTOCOL_VERSION, $param['protocol']) ) {
 775                     do_err('Unable to set LDAP protocol');
 776                 }
 777
 778                 if ( empty($param['binddn']) ) {
 779                     $bind = @ldap_bind($linkid);
 780                 } else {
 781                     $bind = @ldap_bind($param['binddn'], $param['bindpw']);
 782                 }
 783
 784                 if ( $bind ) {
 785                     echo "$IND LDAP Bind Successful <br />";
 786                 } else {
 787                     do_err('Unable to Bind to LDAP Server');
 788                 }
 789
 790                 @ldap_close($linkid);
 791             } else {
 792                 do_err('Connection to LDAP failed');
 793             }
 794         }
 795     }
 796 }
 797
 798 echo '<hr width="75%" align="center">';
 799 echo '<h2 align="center">Summary</h2>';
 800 $footer = '<hr width="75%" align="center">';
 801 if ($warnings) {
 802     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>';
 803     echo $footer;
 804 } else {
 805     print <<< EOF
 806 <p>Congratulations, your SquirrelMail setup looks fine to me!</p>
 807
 808 <p><a href="login.php">Login now</a></p>
 809
 810 </body>
 811 </html>
 812 EOF;
 813     echo $footer;
 814 }
 815 ?>