[squirrelmail.git] / src / configtest.php

<?php

/**
 * SquirrelMail configtest script
 *
 * @copyright &copy; 2003-2005 The SquirrelMail Project Team
 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
 * @version $Id$
 * @package squirrelmail
 * @subpackage config
 */

/************************************************************
 * NOTE: you do not need to change this script!             *
 * If it throws errors you need to adjust your config.      *
 ************************************************************/

// This script could really use some restructuring as it has grown quite rapidly
// but is not very 'clean'. Feel free to get some structure into this thing.

function do_err($str, $exit = TRUE) {
    global $IND;
    echo '<p>'.$IND.'<font color="red"><b>ERROR:</b></font> ' .$str. "</p>\n";
    if($exit) {
         echo '</body></html>';
         exit;
    }
}

$IND = str_repeat('&nbsp;',4);

ob_implicit_flush();
/** @ignore */
define('SM_PATH', '../');

/* set default value in order to block remote access to script */
$allow_remote_configtest=false;

/*
 * Load config before output begins. functions/strings.php depends on
 * functions/globals.php. functions/global.php needs to be run before
 * any html output starts. If config.php is missing, error will be displayed
 * later.
 */
if (file_exists(SM_PATH . 'config/config.php')) {
    include(SM_PATH . 'config/config.php');
    include(SM_PATH . 'functions/strings.php');
}
?><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
    <meta name="robots" content="noindex,nofollow">
    <title>SquirrelMail configtest</title>
</head>
<body>
<h1>SquirrelMail configtest</h1>

<p>This script will try to check some aspects of your SquirrelMail configuration
and point you to errors whereever it can find them. You need to go run <tt>conf.pl</tt>
in the <tt>config/</tt> directory first before you run this script.</p>

<?php

$included = array_map('basename', get_included_files() );
if(!in_array('config.php', $included)) {
    if(!file_exists(SM_PATH . 'config/config.php')) {
        do_err('Config file '.SM_PATH . 'config/config.php does not exist!<br />'.
               'You need to run <tt>conf.pl</tt> first.');
    }
    do_err('Could not read '.SM_PATH.'config/config.php! Check file permissions.');
}
if(!in_array('strings.php', $included)) {
    do_err('Could not include '.SM_PATH.'functions/strings.php!<br />'.
           'Check permissions on that file.');
}

/* Block remote use of script */
if (! $allow_remote_configtest) {
    sqGetGlobalVar('REMOTE_ADDR',$client_ip,SQ_SERVER);
    if (! isset($client_ip) || $client_ip!='127.0.0.1') {
        do_err('Enable "Allow remote configtest" option in squirrelmail configuration in order to use this script.');
    }
}
/* checking PHP specs */

echo "<p><table>\n<tr><td>SquirrelMail version:</td><td><b>" . $version . "</b></td></tr>\n" .
     '<tr><td>Config file version:</td><td><b>' . $config_version . "</b></td></tr>\n" .
     '<tr><td>Config file last modified:</td><td><b>' .
         date ('d F Y H:i:s', filemtime(SM_PATH . 'config/config.php')) .
         "</b></td></tr>\n</table>\n</p>\n\n";

echo "Checking PHP configuration...<br />\n";

if(!check_php_version(4,1,0)) {
    do_err('Insufficient PHP version: '. PHP_VERSION . '! Minimum required: 4.1.0');
}

echo $IND . 'PHP version ' . PHP_VERSION . " OK.<br />\n";

$php_exts = array('session','pcre');
$diff = array_diff($php_exts, get_loaded_extensions());
if(count($diff)) {
    do_err('Required PHP extensions missing: '.implode(', ',$diff) );
}

echo $IND . "PHP extensions OK.<br />\n";

/* dangerous php settings */
/**
 * mbstring.func_overload allows to replace original string and regexp functions
 * with their equivalents from php mbstring extension. It causes problems when
 * scripts analyze 8bit strings byte after byte or use 8bit strings in regexp tests.
 * Setting can be controlled in php.ini (php 4.2.0), webserver config (php 4.2.0)
 * and .htaccess files (php 4.3.5).
 */
if (function_exists('mb_internal_encoding') &&
    check_php_version(4,2,0) &&
    (int)ini_get('mbstring.func_overload')!=0) {
    $mb_error='You have enabled mbstring overloading.'
        .' It can cause problems with SquirrelMail scripts that rely on single byte string functions.';
    do_err($mb_error);
}

/**
 * We code with register_globals = off. SquirrelMail should work in such setup
 * since 1.2.9 and 1.3.0. Running SquirrelMail with register_globals = on can
 * cause variable corruption and security issues. Globals can be turned off in
 * php.ini, webserver config and .htaccess files. Scripts can turn off globals only
 * in php 4.2.3 or older.
 */
if ((bool) ini_get('register_globals')) {
    $rg_error='You have enabled php register_globals.'
        .' Running PHP installation with register_globals=on can cause problems.'
        .' See <a href="http://www.php.net/manual/en/security.registerglobals.php">'
        .'security information about register_globals</a>.';
    do_err($rg_error);
}

/* checking paths */

echo "Checking paths...<br />\n";

if(!file_exists($data_dir)) {
    // data_dir is not that important in db_setups.
    if (isset($prefs_dsn) && ! empty($prefs_dsn)) {
        $data_dir_error = "Data dir ($data_dir) does not exist!\n";
        echo $IND .'<font color="red"><b>ERROR:</b></font> ' . $data_dir_error;
    } else {
        do_err("Data dir ($data_dir) does not exist!");
    }
}
// don't check if errors
if(!isset($data_dir_error) && !is_dir($data_dir)) {
    if (isset($prefs_dsn) && ! empty($prefs_dsn)) {
        $data_dir_error = "Data dir ($data_dir) is not a directory!\n";
        echo $IND . '<font color="red"><b>ERROR:</b></font> ' . $data_dir_error;
    } else {
        do_err("Data dir ($data_dir) is not a directory!");
    }
}
// datadir should be executable - but no clean way to test on that
if(!isset($data_dir_error) && !is_writable($data_dir)) {
    if (isset($prefs_dsn) && ! empty($prefs_dsn)) {
        $data_dir_error = "Data dir ($data_dir) is not writable!\n";
        echo $IND . '<font color="red"><b>ERROR:</b></font> ' . $data_dir_error;
    } else {
        do_err("Data dir ($data_dir) is not writable!");
    }
}

if (isset($data_dir_error)) {
    echo " Some plugins might need access to data directory.<br />\n";
} else {
    // todo_ornot: actually write something and read it back.
    echo $IND . "Data dir OK.<br />\n";
}

if($data_dir == $attachment_dir) {
    echo $IND . "Attachment dir is the same as data dir.<br />\n";
    if (isset($data_dir_error)) {
        do_err($data_dir_error);
    }
} else {
    if(!file_exists($attachment_dir)) {
        do_err("Attachment dir ($attachment_dir) does not exist!");
    }
    if (!is_dir($attachment_dir)) {
        do_err("Attachment dir ($attachment_dir) is not a directory!");
    }
    if (!is_writable($attachment_dir)) {
        do_err("I cannot write to attachment dir ($attachment_dir)!");
    }
    echo $IND . "Attachment dir OK.<br />\n";
}


/* check plugins and themes */
if (isset($plugins[0])) {
    foreach($plugins as $plugin) {
        if(!file_exists(SM_PATH .'plugins/'.$plugin)) {
            do_err('You have enabled the <i>'.$plugin.'</i> plugin but I cannot find it.', FALSE);
        } elseif (!is_readable(SM_PATH .'plugins/'.$plugin.'/setup.php')) {
            do_err('You have enabled the <i>'.$plugin.'</i> plugin but I cannot read its setup.php file.', FALSE);
        }
    }
    echo $IND . "Plugins OK.<br />\n";
} else {
    echo $IND . "Plugins are not enabled in config.<br />\n";
}
foreach($theme as $thm) {
    if(!file_exists($thm['PATH'])) {
        do_err('You have enabled the <i>'.$thm['NAME'].'</i> theme but I cannot find it ('.$thm['PATH'].').', FALSE);
    } elseif(!is_readable($thm['PATH'])) {
        do_err('You have enabled the <i>'.$thm['NAME'].'</i> theme but I cannot read it ('.$thm['PATH'].').', FALSE);
    }
}

echo $IND . "Themes OK.<br />\n";

if ( $squirrelmail_default_language != 'en_US' ) {
    $loc_path = SM_PATH .'locale/'.$squirrelmail_default_language.'/LC_MESSAGES/squirrelmail.mo';
    if( ! file_exists( $loc_path ) ) {
        do_err('You have set <i>' . $squirrelmail_default_language .
            '</i> as your default language, but I cannot find this translation (should be '.
            'in <tt>' . $loc_path . '</tt>). Please note that you have to download translations '.
            'separately from the main SquirrelMail package.', FALSE);
    } elseif ( ! is_readable( $loc_path ) ) {
        do_err('You have set <i>' . $squirrelmail_default_language .
            '</i> as your default language, but I cannot read this translation (file '.
            'in <tt>' . $loc_path . '</tt> unreadable).', FALSE);
    } else {
        echo $IND . "Default language OK.<br />\n";
    }
} else {
    echo $IND . "Default language OK.<br />\n";
}

echo $IND . "Base URL detected as: <tt>" . htmlspecialchars(get_location()) . "</tt><br />\n";


/* check outgoing mail */

if($use_smtp_tls || $use_imap_tls) {
    if(!check_php_version(4,3,0)) {
        do_err('You need at least PHP 4.3.0 for SMTP/IMAP TLS!');
    }
    if(!extension_loaded('openssl')) {
        do_err('You need the openssl PHP extension to use SMTP/IMAP TLS!');
    }
}

echo "Checking outgoing mail service....<br />\n";

if($useSendmail) {
    // is_executable also checks for existance, but we want to be as precise as possible with the errors
    if(!file_exists($sendmail_path)) {
        do_err("Location of sendmail program incorrect ($sendmail_path)!");
    }
    if(!is_executable($sendmail_path)) {
        do_err("I cannot execute the sendmail program ($sendmail_path)!");
    }

    echo $IND . "sendmail OK<br />\n";
} else {
    $stream = fsockopen( ($use_smtp_tls?'tls://':'').$smtpServerAddress, $smtpPort,
                        $errorNumber, $errorString);
    if(!$stream) {
        do_err("Error connecting to SMTP server \"$smtpServerAddress:$smtpPort\".".
            "Server error: ($errorNumber) ".htmlspecialchars($errorString));
    }

    // check for SMTP code; should be 2xx to allow us access
    $smtpline = fgets($stream, 1024);
    if(((int) $smtpline{0}) > 3) {
        do_err("Error connecting to SMTP server. Server error: ".
        htmlspecialchars($smtpline));
    }

    fputs($stream, 'QUIT');
    fclose($stream);
    echo $IND . 'SMTP server OK (<tt><small>'.
        trim(htmlspecialchars($smtpline))."</small></tt>)<br />\n";

    /* POP before SMTP */
    if($pop_before_smtp) {
        $stream = fsockopen($smtpServerAddress, 110, $err_no, $err_str);
        if (!$stream) {
            do_err("Error connecting to POP Server ($smtpServerAddress:110) "
                  . $err_no . ' : ' . htmlspecialchars($err_str));
        }

        $tmp = fgets($stream, 1024);
        if (substr($tmp, 0, 3) != '+OK') {
            do_err("Error connecting to POP Server ($smtpServerAddress:110)"
                  . ' '.htmlspecialchars($tmp));
        }
        fputs($stream, 'QUIT');
        fclose($stream);
        echo $IND . "POP-before-SMTP OK.<br />\n";
    }
}

/**
 * Check the IMAP server
 */
echo "Checking IMAP service....<br />\n";

/** Can we open a connection? */
$stream = fsockopen( ($use_imap_tls?'tls://':'').$imapServerAddress, $imapPort,
                       $errorNumber, $errorString);
if(!$stream) {
    do_err("Error connecting to IMAP server \"$imapServerAddress:$imapPort\".".
        "Server error: ($errorNumber) ".
    htmlspecialchars($errorString));
}

/** Is the first response 'OK'? */
$imapline = fgets($stream, 1024);
if(substr($imapline, 0,4) != '* OK') {
   do_err('Error connecting to IMAP server. Server error: '.
       htmlspecialchars($imapline));
}

echo $IND . 'IMAP server ready (<tt><small>'.
    htmlspecialchars(trim($imapline))."</small></tt>)<br />\n";

/** Check capabilities */
fputs($stream, "A001 CAPABILITY\r\n");
$capline = fgets($stream, 1024);

echo $IND . 'Capabilities: <tt>'.htmlspecialchars($capline)."</tt><br />\n";

if($imap_auth_mech == 'login' && stristr($capline, 'LOGINDISABLED') !== FALSE) {
    do_err('Your server doesn\'t allow plaintext logins. '.
        'Try enabling another authentication mechanism like CRAM-MD5, DIGEST-MD5 or TLS-encryption '.
        'in the SquirrelMail configuration.', FALSE);
}
if($use_imap_tls && stristr($capline, 'STARTTLS') === FALSE) {
    do_err('You have enabled TLS encryption in the config, but the server does not '.
        'report STARTTLS capability. TLS is probably not supported.', FALSE);
}

/** OK, close connection */
fputs($stream, "A002 LOGOUT\r\n");
fclose($stream);

echo "Checking internationalization (i18n) settings...<br />\n";
echo "$IND gettext - ";
if (function_exists('gettext')) {
    echo 'Gettext functions are available.'
        .' On some systems you must have appropriate system locales compiled.'
        ."<br />\n";
} else {
    echo 'Gettext functions are unavailable.'
        .' SquirrelMail will use slower internal gettext functions.'
        ."<br />\n";
}
echo "$IND mbstring - ";
if (function_exists('mb_detect_encoding')) {
    echo "Mbstring functions are available.<br />\n";
} else {
    echo 'Mbstring functions are unavailable.'
        ." Japanese translation won't work.<br />\n";
}
echo "$IND recode - ";
if (function_exists('recode')) {
    echo "Recode functions are available.<br />\n";
} elseif (isset($use_php_recode) && $use_php_recode) {
    echo "Recode functions are unavailable.<br />\n";
    do_err('Your configuration requires recode support, but recode support is missing.');
} else {
    echo "Recode functions are unavailable.<br />\n";
}
echo "$IND iconv - ";
if (function_exists('iconv')) {
    echo "Iconv functions are available.<br />\n";
} elseif (isset($use_php_iconv) && $use_php_iconv) {
    echo "Iconv functions are unavailable.<br />\n";
    do_err('Your configuration requires iconv support, but iconv support is missing.');
} else {
    echo "Iconv functions are unavailable.<br />\n";
}
// same test as in include/validate.php
echo "$IND timezone - ";
if ( (!ini_get('safe_mode')) ||
    !strcmp(ini_get('safe_mode_allowed_env_vars'),'') ||
    preg_match('/^([\w_]+,)*TZ/', ini_get('safe_mode_allowed_env_vars')) ) {
        echo "Webmail users can change their time zone settings.<br />\n";
} else {
    echo "Webmail users can't change their time zone settings.<br />\n";
}


// Pear DB tests
echo "Checking database functions...<br />\n";
if($addrbook_dsn || $prefs_dsn || $addrbook_global_dsn) {
    @include_once('DB.php');
    if (class_exists('DB')) {
        echo "$IND PHP Pear DB support is present.<br />\n";
        $db_functions=array(
            'dbase' => 'dbase_open',
            'fbsql' => 'fbsql_connect',
            'interbase' => 'ibase_connect',
            'informix' => 'ifx_connect',
            'msql' => 'msql_connect',
            'mssql' => 'mssql_connect',
            'mysql' => 'mysql_connect',
            'mysqli' => 'mysqli_connect',
            'oci8' => 'ocilogon',
            'odbc' => 'odbc_connect',
            'pgsql' => 'pg_connect',
            'sqlite' => 'sqlite_open',
            'sybase' => 'sybase_connect'
            );

        $dsns = array();
        if($prefs_dsn) {
            $dsns['preferences'] = $prefs_dsn;
        }
        if($addrbook_dsn) {
            $dsns['addressbook'] = $addrbook_dsn;
        }
        if($addrbook_global_dsn) {
            $dsns['global addressbook'] = $addrbook_global_dsn;
        }

        foreach($dsns as $type => $dsn) {
            $aDsn = explode(':', $dsn);
            $dbtype = array_shift($aDsn);
            if(isset($db_functions[$dbtype]) && function_exists($db_functions[$dbtype])) {
                echo "$IND$dbtype database support present.<br />\n";

                // now, test this interface:

                $dbh = DB::connect($dsn, true);
                if (DB::isError($dbh)) {
                    do_err('Database error: '. htmlspecialchars(DB::errorMessage($dbh)) .
                        ' in ' .$type .' DSN.');
                }
                $dbh->disconnect();
                echo "$IND$type database connect successful.<br />\n";

            } else {
                do_err($dbtype.' database support not present!');
            }
        }
    } else {
        $db_error='Required PHP PEAR DB support is not available.'
            .' Is PEAR installed and is the include path set correctly to find <tt>DB.php</tt>?'
            .' The include path is now:<tt>' . ini_get('include_path') . '</tt>.';
        do_err($db_error);
    }
} else {
    echo $IND."not using database functionality.<br />\n";
}

// LDAP DB tests
echo "Checking LDAP functions...<br />\n";
if( empty($ldap_server) ) {
    echo $IND."not using LDAP functionality.<br />\n";
} else {
    if ( !function_exists('ldap_connect') ) {
        do_err('Required LDAP support is not available.');
    } else {
        echo "$IND LDAP support present.<br />\n";
        foreach ( $ldap_server as $param ) {

            $linkid = @ldap_connect($param['host'], (empty($param['port']) ? 389 : $param['port']) );

            if ( $linkid ) {
               echo "$IND LDAP connect to ".$param['host']." successful: ".$linkid."<br />\n";

                if ( !empty($param['protocol']) &&
                     !ldap_set_option($linkid, LDAP_OPT_PROTOCOL_VERSION, $param['protocol']) ) {
                    do_err('Unable to set LDAP protocol');
                }

                if ( empty($param['binddn']) ) {
                    $bind = @ldap_bind($linkid);
                } else {
                    $bind = @ldap_bind($param['binddn'], $param['bindpw']);
                }

                if ( $bind ) {
                    echo "$IND LDAP Bind Successful <br />";
                } else {
                    do_err('Unable to Bind to LDAP Server');
                }

                @ldap_close($linkid);
            } else {
                do_err('Connection to LDAP failed');
            }
        }
    }
}

?>

<p>Congratulations, your SquirrelMail setup looks fine to me!</p>

<p><a href="login.php">Login now</a></p>

</body>
</html>
Commit	Line	Data
	1	<?php
	2
	3	/**
	4	* SquirrelMail configtest script
	5	*
	6	* @copyright © 2003-2005 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	function do_err($str, $exit = TRUE) {
	22	global $IND;
	23	echo '<p>'.$IND.'<font color="red"><b>ERROR:</b></font> ' .$str. "</p>\n";
	24	if($exit) {
	25	echo '</body></html>';
	26	exit;
	27	}
	28	}
	29
	30	$IND = str_repeat(' ',4);
	31
	32	ob_implicit_flush();
	33	/** @ignore */
	34	define('SM_PATH', '../');
	35
	36	/* set default value in order to block remote access to script */
	37	$allow_remote_configtest=false;
	38
	39	/*
	40	* Load config before output begins. functions/strings.php depends on
	41	* functions/globals.php. functions/global.php needs to be run before
	42	* any html output starts. If config.php is missing, error will be displayed
	43	* later.
	44	*/
	45	if (file_exists(SM_PATH . 'config/config.php')) {
	46	include(SM_PATH . 'config/config.php');
	47	include(SM_PATH . 'functions/strings.php');
	48	}
	49	?><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
	50	<html>
	51	<head>
	52	<meta name="robots" content="noindex,nofollow">
	53	<title>SquirrelMail configtest</title>
	54	</head>
	55	<body>
	56	<h1>SquirrelMail configtest</h1>
	57
	58	<p>This script will try to check some aspects of your SquirrelMail configuration
	59	and point you to errors whereever it can find them. You need to go run <tt>conf.pl</tt>
	60	in the <tt>config/</tt> directory first before you run this script.</p>
	61
	62	<?php
	63
	64	$included = array_map('basename', get_included_files() );
	65	if(!in_array('config.php', $included)) {
	66	if(!file_exists(SM_PATH . 'config/config.php')) {
	67	do_err('Config file '.SM_PATH . 'config/config.php does not exist!<br />'.
	68	'You need to run <tt>conf.pl</tt> first.');
	69	}
	70	do_err('Could not read '.SM_PATH.'config/config.php! Check file permissions.');
	71	}
	72	if(!in_array('strings.php', $included)) {
	73	do_err('Could not include '.SM_PATH.'functions/strings.php!<br />'.
	74	'Check permissions on that file.');
	75	}
	76
	77	/* Block remote use of script */
	78	if (! $allow_remote_configtest) {
	79	sqGetGlobalVar('REMOTE_ADDR',$client_ip,SQ_SERVER);
	80	if (! isset($client_ip) \|\| $client_ip!='127.0.0.1') {
	81	do_err('Enable "Allow remote configtest" option in squirrelmail configuration in order to use this script.');
	82	}
	83	}
	84	/* checking PHP specs */
	85
	86	echo "<p><table>\n<tr><td>SquirrelMail version:</td><td><b>" . $version . "</b></td></tr>\n" .
	87	'<tr><td>Config file version:</td><td><b>' . $config_version . "</b></td></tr>\n" .
	88	'<tr><td>Config file last modified:</td><td><b>' .
	89	date ('d F Y H:i:s', filemtime(SM_PATH . 'config/config.php')) .
	90	"</b></td></tr>\n</table>\n</p>\n\n";
	91
	92	echo "Checking PHP configuration...<br />\n";
	93
	94	if(!check_php_version(4,1,0)) {
	95	do_err('Insufficient PHP version: '. PHP_VERSION . '! Minimum required: 4.1.0');
	96	}
	97
	98	echo $IND . 'PHP version ' . PHP_VERSION . " OK.<br />\n";
	99
	100	$php_exts = array('session','pcre');
	101	$diff = array_diff($php_exts, get_loaded_extensions());
	102	if(count($diff)) {
	103	do_err('Required PHP extensions missing: '.implode(', ',$diff) );
	104	}
	105
	106	echo $IND . "PHP extensions OK.<br />\n";
	107
	108	/* dangerous php settings */
	109	/**
	110	* mbstring.func_overload allows to replace original string and regexp functions
	111	* with their equivalents from php mbstring extension. It causes problems when
	112	* scripts analyze 8bit strings byte after byte or use 8bit strings in regexp tests.
	113	* Setting can be controlled in php.ini (php 4.2.0), webserver config (php 4.2.0)
	114	* and .htaccess files (php 4.3.5).
	115	*/
	116	if (function_exists('mb_internal_encoding') &&
	117	check_php_version(4,2,0) &&
	118	(int)ini_get('mbstring.func_overload')!=0) {
	119	$mb_error='You have enabled mbstring overloading.'
	120	.' It can cause problems with SquirrelMail scripts that rely on single byte string functions.';
	121	do_err($mb_error);
	122	}
	123
	124	/**
	125	* We code with register_globals = off. SquirrelMail should work in such setup
	126	* since 1.2.9 and 1.3.0. Running SquirrelMail with register_globals = on can
	127	* cause variable corruption and security issues. Globals can be turned off in
	128	* php.ini, webserver config and .htaccess files. Scripts can turn off globals only
	129	* in php 4.2.3 or older.
	130	*/
	131	if ((bool) ini_get('register_globals')) {
	132	$rg_error='You have enabled php register_globals.'
	133	.' Running PHP installation with register_globals=on can cause problems.'
	134	.' See <a href="http://www.php.net/manual/en/security.registerglobals.php">'
	135	.'security information about register_globals</a>.';
	136	do_err($rg_error);
	137	}
	138
	139	/* checking paths */
	140
	141	echo "Checking paths...<br />\n";
	142
	143	if(!file_exists($data_dir)) {
	144	// data_dir is not that important in db_setups.
	145	if (isset($prefs_dsn) && ! empty($prefs_dsn)) {
	146	$data_dir_error = "Data dir ($data_dir) does not exist!\n";
	147	echo $IND .'<font color="red"><b>ERROR:</b></font> ' . $data_dir_error;
	148	} else {
	149	do_err("Data dir ($data_dir) does not exist!");
	150	}
	151	}
	152	// don't check if errors
	153	if(!isset($data_dir_error) && !is_dir($data_dir)) {
	154	if (isset($prefs_dsn) && ! empty($prefs_dsn)) {
	155	$data_dir_error = "Data dir ($data_dir) is not a directory!\n";
	156	echo $IND . '<font color="red"><b>ERROR:</b></font> ' . $data_dir_error;
	157	} else {
	158	do_err("Data dir ($data_dir) is not a directory!");
	159	}
	160	}
	161	// datadir should be executable - but no clean way to test on that
	162	if(!isset($data_dir_error) && !is_writable($data_dir)) {
	163	if (isset($prefs_dsn) && ! empty($prefs_dsn)) {
	164	$data_dir_error = "Data dir ($data_dir) is not writable!\n";
	165	echo $IND . '<font color="red"><b>ERROR:</b></font> ' . $data_dir_error;
	166	} else {
	167	do_err("Data dir ($data_dir) is not writable!");
	168	}
	169	}
	170
	171	if (isset($data_dir_error)) {
	172	echo " Some plugins might need access to data directory.<br />\n";
	173	} else {
	174	// todo_ornot: actually write something and read it back.
	175	echo $IND . "Data dir OK.<br />\n";
	176	}
	177
	178	if($data_dir == $attachment_dir) {
	179	echo $IND . "Attachment dir is the same as data dir.<br />\n";
	180	if (isset($data_dir_error)) {
	181	do_err($data_dir_error);
	182	}
	183	} else {
	184	if(!file_exists($attachment_dir)) {
	185	do_err("Attachment dir ($attachment_dir) does not exist!");
	186	}
	187	if (!is_dir($attachment_dir)) {
	188	do_err("Attachment dir ($attachment_dir) is not a directory!");
	189	}
	190	if (!is_writable($attachment_dir)) {
	191	do_err("I cannot write to attachment dir ($attachment_dir)!");
	192	}
	193	echo $IND . "Attachment dir OK.<br />\n";
	194	}
	195
	196
	197	/* check plugins and themes */
	198	if (isset($plugins[0])) {
	199	foreach($plugins as $plugin) {
	200	if(!file_exists(SM_PATH .'plugins/'.$plugin)) {
	201	do_err('You have enabled the <i>'.$plugin.'</i> plugin but I cannot find it.', FALSE);
	202	} elseif (!is_readable(SM_PATH .'plugins/'.$plugin.'/setup.php')) {
	203	do_err('You have enabled the <i>'.$plugin.'</i> plugin but I cannot read its setup.php file.', FALSE);
	204	}
	205	}
	206	echo $IND . "Plugins OK.<br />\n";
	207	} else {
	208	echo $IND . "Plugins are not enabled in config.<br />\n";
	209	}
	210	foreach($theme as $thm) {
	211	if(!file_exists($thm['PATH'])) {
	212	do_err('You have enabled the <i>'.$thm['NAME'].'</i> theme but I cannot find it ('.$thm['PATH'].').', FALSE);
	213	} elseif(!is_readable($thm['PATH'])) {
	214	do_err('You have enabled the <i>'.$thm['NAME'].'</i> theme but I cannot read it ('.$thm['PATH'].').', FALSE);
	215	}
	216	}
	217
	218	echo $IND . "Themes OK.<br />\n";
	219
	220	if ( $squirrelmail_default_language != 'en_US' ) {
	221	$loc_path = SM_PATH .'locale/'.$squirrelmail_default_language.'/LC_MESSAGES/squirrelmail.mo';
	222	if( ! file_exists( $loc_path ) ) {
	223	do_err('You have set <i>' . $squirrelmail_default_language .
	224	'</i> as your default language, but I cannot find this translation (should be '.
	225	'in <tt>' . $loc_path . '</tt>). Please note that you have to download translations '.
	226	'separately from the main SquirrelMail package.', FALSE);
	227	} elseif ( ! is_readable( $loc_path ) ) {
	228	do_err('You have set <i>' . $squirrelmail_default_language .
	229	'</i> as your default language, but I cannot read this translation (file '.
	230	'in <tt>' . $loc_path . '</tt> unreadable).', FALSE);
	231	} else {
	232	echo $IND . "Default language OK.<br />\n";
	233	}
	234	} else {
	235	echo $IND . "Default language OK.<br />\n";
	236	}
	237
	238	echo $IND . "Base URL detected as: <tt>" . htmlspecialchars(get_location()) . "</tt><br />\n";
	239
	240
	241	/* check outgoing mail */
	242
	243	if($use_smtp_tls \|\| $use_imap_tls) {
	244	if(!check_php_version(4,3,0)) {
	245	do_err('You need at least PHP 4.3.0 for SMTP/IMAP TLS!');
	246	}
	247	if(!extension_loaded('openssl')) {
	248	do_err('You need the openssl PHP extension to use SMTP/IMAP TLS!');
	249	}
	250	}
	251
	252	echo "Checking outgoing mail service....<br />\n";
	253
	254	if($useSendmail) {
	255	// is_executable also checks for existance, but we want to be as precise as possible with the errors
	256	if(!file_exists($sendmail_path)) {
	257	do_err("Location of sendmail program incorrect ($sendmail_path)!");
	258	}
	259	if(!is_executable($sendmail_path)) {
	260	do_err("I cannot execute the sendmail program ($sendmail_path)!");
	261	}
	262
	263	echo $IND . "sendmail OK<br />\n";
	264	} else {
	265	$stream = fsockopen( ($use_smtp_tls?'tls://':'').$smtpServerAddress, $smtpPort,
	266	$errorNumber, $errorString);
	267	if(!$stream) {
	268	do_err("Error connecting to SMTP server \"$smtpServerAddress:$smtpPort\".".
	269	"Server error: ($errorNumber) ".htmlspecialchars($errorString));
	270	}
	271
	272	// check for SMTP code; should be 2xx to allow us access
	273	$smtpline = fgets($stream, 1024);
	274	if(((int) $smtpline{0}) > 3) {
	275	do_err("Error connecting to SMTP server. Server error: ".
	276	htmlspecialchars($smtpline));
	277	}
	278
	279	fputs($stream, 'QUIT');
	280	fclose($stream);
	281	echo $IND . 'SMTP server OK (<tt><small>'.
	282	trim(htmlspecialchars($smtpline))."</small></tt>)<br />\n";
	283
	284	/* POP before SMTP */
	285	if($pop_before_smtp) {
	286	$stream = fsockopen($smtpServerAddress, 110, $err_no, $err_str);
	287	if (!$stream) {
	288	do_err("Error connecting to POP Server ($smtpServerAddress:110) "
	289	. $err_no . ' : ' . htmlspecialchars($err_str));
	290	}
	291
	292	$tmp = fgets($stream, 1024);
	293	if (substr($tmp, 0, 3) != '+OK') {
	294	do_err("Error connecting to POP Server ($smtpServerAddress:110)"
	295	. ' '.htmlspecialchars($tmp));
	296	}
	297	fputs($stream, 'QUIT');
	298	fclose($stream);
	299	echo $IND . "POP-before-SMTP OK.<br />\n";
	300	}
	301	}
	302
	303	/**
	304	* Check the IMAP server
	305	*/
	306	echo "Checking IMAP service....<br />\n";
	307
	308	/** Can we open a connection? */
	309	$stream = fsockopen( ($use_imap_tls?'tls://':'').$imapServerAddress, $imapPort,
	310	$errorNumber, $errorString);
	311	if(!$stream) {
	312	do_err("Error connecting to IMAP server \"$imapServerAddress:$imapPort\".".
	313	"Server error: ($errorNumber) ".
	314	htmlspecialchars($errorString));
	315	}
	316
	317	/** Is the first response 'OK'? */
	318	$imapline = fgets($stream, 1024);
	319	if(substr($imapline, 0,4) != '* OK') {
	320	do_err('Error connecting to IMAP server. Server error: '.
	321	htmlspecialchars($imapline));
	322	}
	323
	324	echo $IND . 'IMAP server ready (<tt><small>'.
	325	htmlspecialchars(trim($imapline))."</small></tt>)<br />\n";
	326
	327	/** Check capabilities */
	328	fputs($stream, "A001 CAPABILITY\r\n");
	329	$capline = fgets($stream, 1024);
	330
	331	echo $IND . 'Capabilities: <tt>'.htmlspecialchars($capline)."</tt><br />\n";
	332
	333	if($imap_auth_mech == 'login' && stristr($capline, 'LOGINDISABLED') !== FALSE) {
	334	do_err('Your server doesn\'t allow plaintext logins. '.
	335	'Try enabling another authentication mechanism like CRAM-MD5, DIGEST-MD5 or TLS-encryption '.
	336	'in the SquirrelMail configuration.', FALSE);
	337	}
	338	if($use_imap_tls && stristr($capline, 'STARTTLS') === FALSE) {
	339	do_err('You have enabled TLS encryption in the config, but the server does not '.
	340	'report STARTTLS capability. TLS is probably not supported.', FALSE);
	341	}
	342
	343	/** OK, close connection */
	344	fputs($stream, "A002 LOGOUT\r\n");
	345	fclose($stream);
	346
	347	echo "Checking internationalization (i18n) settings...<br />\n";
	348	echo "$IND gettext - ";
	349	if (function_exists('gettext')) {
	350	echo 'Gettext functions are available.'
	351	.' On some systems you must have appropriate system locales compiled.'
	352	."<br />\n";
	353	} else {
	354	echo 'Gettext functions are unavailable.'
	355	.' SquirrelMail will use slower internal gettext functions.'
	356	."<br />\n";
	357	}
	358	echo "$IND mbstring - ";
	359	if (function_exists('mb_detect_encoding')) {
	360	echo "Mbstring functions are available.<br />\n";
	361	} else {
	362	echo 'Mbstring functions are unavailable.'
	363	." Japanese translation won't work.<br />\n";
	364	}
	365	echo "$IND recode - ";
	366	if (function_exists('recode')) {
	367	echo "Recode functions are available.<br />\n";
	368	} elseif (isset($use_php_recode) && $use_php_recode) {
	369	echo "Recode functions are unavailable.<br />\n";
	370	do_err('Your configuration requires recode support, but recode support is missing.');
	371	} else {
	372	echo "Recode functions are unavailable.<br />\n";
	373	}
	374	echo "$IND iconv - ";
	375	if (function_exists('iconv')) {
	376	echo "Iconv functions are available.<br />\n";
	377	} elseif (isset($use_php_iconv) && $use_php_iconv) {
	378	echo "Iconv functions are unavailable.<br />\n";
	379	do_err('Your configuration requires iconv support, but iconv support is missing.');
	380	} else {
	381	echo "Iconv functions are unavailable.<br />\n";
	382	}
	383	// same test as in include/validate.php
	384	echo "$IND timezone - ";
	385	if ( (!ini_get('safe_mode')) \|\|
	386	!strcmp(ini_get('safe_mode_allowed_env_vars'),'') \|\|
	387	preg_match('/^([\w_]+,)*TZ/', ini_get('safe_mode_allowed_env_vars')) ) {
	388	echo "Webmail users can change their time zone settings.<br />\n";
	389	} else {
	390	echo "Webmail users can't change their time zone settings.<br />\n";
	391	}
	392
	393
	394	// Pear DB tests
	395	echo "Checking database functions...<br />\n";
	396	if($addrbook_dsn \|\| $prefs_dsn \|\| $addrbook_global_dsn) {
	397	@include_once('DB.php');
	398	if (class_exists('DB')) {
	399	echo "$IND PHP Pear DB support is present.<br />\n";
	400	$db_functions=array(
	401	'dbase' => 'dbase_open',
	402	'fbsql' => 'fbsql_connect',
	403	'interbase' => 'ibase_connect',
	404	'informix' => 'ifx_connect',
	405	'msql' => 'msql_connect',
	406	'mssql' => 'mssql_connect',
	407	'mysql' => 'mysql_connect',
	408	'mysqli' => 'mysqli_connect',
	409	'oci8' => 'ocilogon',
	410	'odbc' => 'odbc_connect',
	411	'pgsql' => 'pg_connect',
	412	'sqlite' => 'sqlite_open',
	413	'sybase' => 'sybase_connect'
	414	);
	415
	416	$dsns = array();
	417	if($prefs_dsn) {
	418	$dsns['preferences'] = $prefs_dsn;
	419	}
	420	if($addrbook_dsn) {
	421	$dsns['addressbook'] = $addrbook_dsn;
	422	}
	423	if($addrbook_global_dsn) {
	424	$dsns['global addressbook'] = $addrbook_global_dsn;
	425	}
	426
	427	foreach($dsns as $type => $dsn) {
	428	$aDsn = explode(':', $dsn);
	429	$dbtype = array_shift($aDsn);
	430	if(isset($db_functions[$dbtype]) && function_exists($db_functions[$dbtype])) {
	431	echo "$IND$dbtype database support present.<br />\n";
	432
	433	// now, test this interface:
	434
	435	$dbh = DB::connect($dsn, true);
	436	if (DB::isError($dbh)) {
	437	do_err('Database error: '. htmlspecialchars(DB::errorMessage($dbh)) .
	438	' in ' .$type .' DSN.');
	439	}
	440	$dbh->disconnect();
	441	echo "$IND$type database connect successful.<br />\n";
	442
	443	} else {
	444	do_err($dbtype.' database support not present!');
	445	}
	446	}
	447	} else {
	448	$db_error='Required PHP PEAR DB support is not available.'
	449	.' Is PEAR installed and is the include path set correctly to find <tt>DB.php</tt>?'
	450	.' The include path is now:<tt>' . ini_get('include_path') . '</tt>.';
	451	do_err($db_error);
	452	}
	453	} else {
	454	echo $IND."not using database functionality.<br />\n";
	455	}
	456
	457	// LDAP DB tests
	458	echo "Checking LDAP functions...<br />\n";
	459	if( empty($ldap_server) ) {
	460	echo $IND."not using LDAP functionality.<br />\n";
	461	} else {
	462	if ( !function_exists('ldap_connect') ) {
	463	do_err('Required LDAP support is not available.');
	464	} else {
	465	echo "$IND LDAP support present.<br />\n";
	466	foreach ( $ldap_server as $param ) {
	467
	468	$linkid = @ldap_connect($param['host'], (empty($param['port']) ? 389 : $param['port']) );
	469
	470	if ( $linkid ) {
	471	echo "$IND LDAP connect to ".$param['host']." successful: ".$linkid."<br />\n";
	472
	473	if ( !empty($param['protocol']) &&
	474	!ldap_set_option($linkid, LDAP_OPT_PROTOCOL_VERSION, $param['protocol']) ) {
	475	do_err('Unable to set LDAP protocol');
	476	}
	477
	478	if ( empty($param['binddn']) ) {
	479	$bind = @ldap_bind($linkid);
	480	} else {
	481	$bind = @ldap_bind($param['binddn'], $param['bindpw']);
	482	}
	483
	484	if ( $bind ) {
	485	echo "$IND LDAP Bind Successful <br />";
	486	} else {
	487	do_err('Unable to Bind to LDAP Server');
	488	}
	489
	490	@ldap_close($linkid);
	491	} else {
	492	do_err('Connection to LDAP failed');
	493	}
	494	}
	495	}
	496	}
	497
	498	?>
	499
	500	<p>Congratulations, your SquirrelMail setup looks fine to me!</p>
	501
	502	<p><a href="login.php">Login now</a></p>
	503
	504	</body>
	505	</html>