/**
 * Get a new file to write an attachment to.
 * This function makes sure it doesn't overwrite other attachments,
 * preventing collisions and race conditions.
 *
 * @return filename of the tempfile only (not full path)
 * @since 1.5.2
 */
function sq_get_attach_tempfile()
{
    global $username, $attachment_dir;
    $hashed_attachment_dir = getHashedDir($username, $attachment_dir);
    // using PHP >= 4.3.2 we can be truly atomic here
    $filemods = check_php_version(4, 3, 2) ? 'x' : 'w';
    // give up after 1000 tries
    $TMP_MAX = 1000;
    for ($try = 0; $try < $TMP_MAX; ++$try) {
        $localfilename = GenerateRandomString(32, '', 7);
        $full_localfilename = "{$hashed_attachment_dir}/{$localfilename}";
        // filename collision. try again
        if (file_exists($full_localfilename)) {
            continue;
        }
        // try to open for (binary) writing
        $fp = @fopen($full_localfilename, $filemods);
        if ($fp !== FALSE) {
            // success! make sure it's not readable, close and return filename
            chmod($full_localfilename, 0600);
            fclose($fp);
            return $localfilename;
        }
    }
    // we tried 1000 times but didn't succeed.
    error_box(_("Could not open temporary file to store attachment. Contact your system administrator to resolve this issue."));
    return FALSE;
}

/**
 * Use this function to do any backend-specific initialization,
 * e.g. checking requirements, before the password change form
 * is displayed to the user.
 */
function cpw_template_init()
{
    global $oTemplate;
    // plugin is not configured. Handle error gracefully.
    error_box(_("No valid backend defined."));
    // close html and stop script execution
    $oTemplate->display('footer.tpl');
    exit;
}

/**
 * Helper function for the functions below; checks if the user entered
 * folder name is valid according to the IMAP standard. If not, it
 * bails out with an error and cleanly terminates the IMAP connection.
 */
function folders_checkname($imapConnection, $folder_name, $delimiter)
{
    if (substr_count($folder_name, '"') || substr_count($folder_name, "\\") || substr_count($folder_name, $delimiter) || $folder_name == '') {
        global $color, $oTemplate;
        error_box(_("Illegal folder name.") . "<br />\n" . sprintf(_("The name may not contain any of the following: %s"), '<tt>" \\ ' . $delimiter . '</tt>') . "<br />\n" . _("Please select a different name.") . '<br /><a href="folders.php">' . _("Click here to go back") . '</a>.');
        sqimap_logout($imapConnection);
        $oTemplate->display('footer.tpl');
        exit;
    }
}

/**
 * Check if php install has all required extensions.
 */
function cpw_merak_init()
{
    global $oTemplate;
    if (!function_exists('curl_init')) {
        // user_error('Curl module NOT available!', E_USER_ERROR);
        error_box(_("PHP Curl extension is NOT available! Unable to change password!"));
        // close html and stop script execution
        $oTemplate->display('footer.tpl');
        exit;
    }
}

/**
 * Shows translation box in message display window
 * @access private
 */
function translate_read_form_function()
{
    global $color, $translate_server;
    global $message, $translate_dir;
    global $translate_show_read;
    global $imapConnection, $wrap_at, $passed_id, $mailbox;
    global $translate_gpltrans_url;
    global $translate_babelfish_enabled, $translate_go_enabled, $translate_dictionary_enabled, $translate_google_enabled, $translate_gpltrans_enabled, $translate_intertran_enabled, $translate_promt_enabled, $translate_otenet_enabled;
    global $translate_custom_enabled;
    if (!$translate_show_read) {
        return;
    }
    $translate_server_option = 'translate_' . $translate_server . '_enabled';
    if ($translate_server == 'gpltrans' && $translate_gpltrans_url == '' || !${$translate_server_option} || !function_exists('translate_form_' . $translate_server)) {
        error_box(_("Selected translation engine is disabled. Please update your translation preferences."));
        return;
    }
    $translate_dir = 'to';
    $trans_ar = $message->findDisplayEntity(array(), array('text/plain'));
    $body = '';
    $final_body = '';
    if (!empty($trans_ar[0])) {
        for ($i = 0; $i < count($trans_ar); $i++) {
            /* reduced version of formatBody and translateText functions */
            // get message entity information
            $body_message = getEntity($message, $trans_ar[$i]);
            // get message body
            $body = mime_fetch_body($imapConnection, $passed_id, $trans_ar[$i]);
            // convert encoded messages
            $body = decodeBody($body, $body_message->header->encoding);
            /*
             * if message part is html formated - convert spaces, html line feeds,
             * less than and greater than html entities and remove tags
             */
            if ($body_message->header->type1 == 'html') {
                $entity_conv = array('&nbsp;' => ' ', '<p>' => "\n", '<P>' => "\n", '<br>' => "\n", '<BR>' => "\n", '<br />' => "\n", '<BR />' => "\n", '&gt;' => '>', '&lt;' => '<');
                $body = strtr($body, $entity_conv);
                $body = strip_tags($body);
            }
            // remove whitespace
            $body = trim($body);
            // save processed text and parse other entity
            $final_body .= charset_decode($body_message->header->getParameter('charset'), $body);
        }
        // add form if message is not empty
        if (!empty($final_body)) {
            $function = 'translate_form_' . $translate_server;
            $function($final_body);
        }
    }
}

function sqimap_asearch_error_box($response, $query, $message, $link = '')
{
    global $color;
    // Error message titles according to imap server returned code
    $imap_error_titles = array('OK' => '', 'NO' => _("ERROR : Could not complete request."), 'BAD' => _("ERROR : Bad or malformed request."), 'BYE' => _("ERROR : Imap server closed the connection."), '' => _("ERROR : Connection dropped by imap-server."));
    if (!array_key_exists($response, $imap_error_titles)) {
        $title = _("ERROR : Unknown imap response.");
    } else {
        $title = $imap_error_titles[$response];
    }
    if ($link == '') {
        $message_title = _("Reason Given: ");
    } else {
        $message_title = _("Possible reason : ");
    }
    if (function_exists('sqimap_error_box')) {
        sqimap_error_box($title, $query, $message_title, $message, $link);
    } else {
        //Straight copy of 1.5 imap_general.php:sqimap_error_box(). Can be removed at a later time
        global $color;
        require_once SM_PATH . 'functions/display_messages.php';
        $string = "<font color=\"{$color['2']}\"><b>\n" . $title . "</b><br />\n";
        if ($query != '') {
            $string .= _("Query:") . ' ' . htmlspecialchars($query) . '<br />';
        }
        if ($message_title != '') {
            $string .= $message_title;
        }
        if ($message != '') {
            $string .= htmlspecialchars($message);
        }
        if ($link != '') {
            $string .= $link;
        }
        $string .= "</font><br />\n";
        error_box($string, $color);
    }
}

 * @copyright (c) 1999-2004 The SquirrelMail Project Team
 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
 * @version $Id: printer_friendly_main.php,v 1.20 2004/10/02 17:21:32 jervfors Exp $
 * @package squirrelmail
 */
/**
 * Path for SquirrelMail required files.
 * @ignore
 */
define('SM_PATH', '../');
/* SquirrelMail required files. */
require_once SM_PATH . 'include/validate.php';
/* get those globals into gear */
global $color;
if (!sqgetGlobalVar('passed_ent_id', $passed_ent_id, SQ_GET)) {
    $passed_ent_id = 0;
}
if (!sqgetGlobalVar('mailbox', $mailbox, SQ_GET) || !sqgetGlobalVar('passed_id', $passed_id, SQ_GET)) {
    error_box(_("Invalid URL"), $color);
} else {
    $passed_id = (int) $passed_id;
    /* end globals */
    displayHtmlHeader(_("Printer Friendly"), '', false, true);
    echo '<frameset rows="60, *">' . "\n";
    echo '<frame src="printer_friendly_top.php" name="top_frame" ' . 'scrolling="no" noresize="noresize" frameborder="0" />' . "\n";
    echo '<frame src="printer_friendly_bottom.php?passed_ent_id=' . urlencode($passed_ent_id) . '&amp;mailbox=' . urlencode($mailbox) . '&amp;passed_id=' . $passed_id . '" name="bottom_frame" frameborder="0" />' . "\n";
    echo "</frameset>\n";
}
?>
</html>

function plain_error_message($message, $color)
{
    error_box($message, $color);
}

/**
 * Helper function for getHashedFile, given a username returns the hashed
 * dir for that username.
 *
 * @param string username the username of the current user
 * @param string dir the SquirrelMail datadir
 * @param string hash_dirs default ''
 * @return the path to the hash dir for username
 * @since 1.2.0
 */
function getHashedDir($username, $dir, $hash_dirs = '')
{
    global $dir_hash_level;
    /* Remove trailing slash from $dir if found */
    if (substr($dir, -1) == '/') {
        $dir = substr($dir, 0, strlen($dir) - 1);
    }
    /* If necessary, populate the hash dir variable. */
    if ($hash_dirs == '') {
        $hash_dirs = computeHashDirs($username);
    }
    /* Make sure the full hash directory exists. */
    $real_hash_dir = $dir;
    for ($h = 0; $h < $dir_hash_level; ++$h) {
        $real_hash_dir .= '/' . $hash_dirs[$h];
        if (!@is_dir($real_hash_dir)) {
            //FIXME: When safe_mode is turned on, the error suppression below makes debugging safe_mode UID/GID restrictions tricky... for now, I will add a check in configtest
            if (!@mkdir($real_hash_dir, 0770)) {
                error_box(sprintf(_("Error creating directory %s."), $real_hash_dir) . "\n" . _("Could not create hashed directory structure!") . "\n" . _("Please contact your system administrator and report this error."));
                exit;
            }
        }
    }
    /* And return that directory. */
    return $real_hash_dir;
}

//.........这里部分代码省略.........
    $abook = new AddressBook();
    /* Create empty error message */
    $abook_init_error = '';
    /*
        Always add a local backend. We use *either* file-based *or* a
        database addressbook. If $addrbook_dsn is set, the database
        backend is used. If not, addressbooks are stores in files.
    */
    if (isset($addrbook_dsn) && !empty($addrbook_dsn)) {
        /* Database */
        if (!isset($addrbook_table) || empty($addrbook_table)) {
            $addrbook_table = 'address';
        }
        $r = $abook->add_backend('database', array('dsn' => $addrbook_dsn, 'owner' => $username, 'table' => $addrbook_table));
        if (!$r && $showerr) {
            $abook_init_error .= _("Error initializing address book database.") . ' ' . $abook->error;
        }
    } else {
        /* File */
        $filename = getHashedFile($username, $data_dir, "{$username}.abook");
        $r = $abook->add_backend('local_file', array('filename' => $filename, 'line_length' => $abook_file_line_length, 'create' => true));
        if (!$r && $showerr) {
            $abook_init_error .= sprintf(_("Error opening file %s"), $filename);
        }
    }
    /* This would be for the global addressbook */
    if (isset($abook_global_file) && isset($abook_global_file_writeable) && trim($abook_global_file) != '') {
        // Detect place of address book
        if (!preg_match("/[\\/\\\\]/", $abook_global_file)) {
            /* no path chars, address book stored in data directory
             * make sure that there is a slash between data directory
             * and address book file name
             */
            $abook_global_filename = $data_dir . (substr($data_dir, -1) != '/' ? '/' : '') . $abook_global_file;
        } elseif (preg_match("/^\\/|\\w:/", $abook_global_file)) {
            // full path is set in options (starts with slash or x:)
            $abook_global_filename = $abook_global_file;
        } else {
            $abook_global_filename = SM_PATH . $abook_global_file;
        }
        $r = $abook->add_backend('local_file', array('filename' => $abook_global_filename, 'name' => _("Global address book"), 'detect_writeable' => false, 'line_length' => $abook_file_line_length, 'writeable' => $abook_global_file_writeable, 'listing' => $abook_global_file_listing));
        if (!$r && $showerr) {
            if ($abook_init_error != '') {
                $abook_init_error .= "\n";
            }
            $abook_init_error .= _("Error initializing global address book.") . "\n" . $abook->error;
        }
    }
    /* Load global addressbook from SQL if configured */
    if (isset($addrbook_global_dsn) && !empty($addrbook_global_dsn)) {
        /* Database configured */
        if (!isset($addrbook_global_table) || empty($addrbook_global_table)) {
            $addrbook_global_table = 'global_abook';
        }
        $r = $abook->add_backend('database', array('dsn' => $addrbook_global_dsn, 'owner' => 'global', 'name' => _("Global address book"), 'writeable' => $addrbook_global_writeable, 'listing' => $addrbook_global_listing, 'table' => $addrbook_global_table));
        if (!$r && $showerr) {
            if ($abook_init_error != '') {
                $abook_init_error .= "\n";
            }
            $abook_init_error .= _("Error initializing global address book.") . "\n" . $abook->error;
        }
    }
    /*
     * hook allows to include different address book backends.
     * plugins should extract $abook and $r from arguments
     * and use same add_backend commands as above functions.
     * @since 1.5.1 and 1.4.5
     */
    $hookReturn = do_hook('abook_init', $abook, $r);
    $abook = $hookReturn[1];
    $r = $hookReturn[2];
    if (!$onlylocal) {
        /* Load configured LDAP servers (if PHP has LDAP support) */
        if (isset($ldap_server) && is_array($ldap_server) && function_exists('ldap_connect')) {
            reset($ldap_server);
            while (list($undef, $param) = each($ldap_server)) {
                if (is_array($param)) {
                    $r = $abook->add_backend('ldap_server', $param);
                    if (!$r && $showerr) {
                        if ($abook_init_error != '') {
                            $abook_init_error .= "\n";
                        }
                        $abook_init_error .= sprintf(_("Error initializing LDAP server %s:") . "\n", $param['host']);
                        $abook_init_error .= $abook->error;
                    }
                }
            }
        }
    }
    // end of remote abook backends init
    /**
     * display address book init errors.
     */
    if ($abook_init_error != '' && $showerr) {
        $abook_init_error = htmlspecialchars($abook_init_error);
        error_box($abook_init_error, $color);
    }
    /* Return the initialized object */
    return $abook;
}

sqgetGlobalVar('send_to', $send_to, SQ_GET);
sqgetGlobalVar('subject', $subject, SQ_GET);
sqgetGlobalVar('body', $body, SQ_GET);
sqgetGlobalVar('action', $action, SQ_GET);
switch ($action) {
    case 'help':
        $out_string = _("This will send a message to %s requesting help for this list. You will receive an emailed response at the address below.");
        break;
    case 'subscribe':
        $out_string = _("This will send a message to %s requesting that you will be subscribed to this list. You will be subscribed with the address below.");
        break;
    case 'unsubscribe':
        $out_string = _("This will send a message to %s requesting that you will be unsubscribed from this list. It will try to unsubscribe the adress below.");
        break;
    default:
        error_box(sprintf(_("Unknown action: %s"), htmlspecialchars($action)), $color);
        exit;
}
echo html_tag('p', '', 'left') . html_tag('table', '', 'center', $color[0], 'border="0" width="75%"') . "\n" . html_tag('tr', html_tag('th', _("Mailinglist") . ' ' . _($action), '', $color[9])) . html_tag('tr') . html_tag('td', '', 'left');
printf($out_string, htmlspecialchars($send_to));
echo '<form method="post" action="../../src/compose.php">';
$idents = get_identities();
echo html_tag('p', '', 'center') . _("From:") . ' ';
if (count($idents) > 1) {
    echo '<select name="identity">';
    foreach ($idents as $nr => $data) {
        echo '<option value="' . $nr . '">' . htmlspecialchars($data['full_name'] . ' <' . $data['email_address'] . ">\n");
    }
    echo '</select>' . "\n";
} else {
    echo htmlspecialchars('"' . $idents[0]['full_name'] . '" <' . $idents[0]['email_address'] . '>');

  * Update/modify address                       *
  ***********************************************/
 if (!empty($editaddr)) {
     /* Stage one: Copy data into form */
     if (isset($sel) && sizeof($sel) > 0) {
         if (sizeof($sel) > 1) {
             $formerror = _("You can only edit one address at the time");
             $showaddrlist = true;
             $defselected = $sel;
         } else {
             $abortform = true;
             list($ebackend, $enick) = explode('_', current($sel), 2);
             $olddata = $abook->lookup($enick, $ebackend);
             // Test if $olddata really contains anything and return an error message if it doesn't
             if (!$olddata) {
                 error_box(nl2br(sm_encode_html_special_chars($abook->error)));
             } else {
                 /* Display the "new address" form */
                 echo abook_create_form($form_url, 'editaddr', _("Update address"), _("Update address"), $current_backend, $olddata);
                 echo addHidden('oldnick', $olddata['nickname']) . addHidden('backend', $olddata['backend']) . addHidden('doedit', '1') . '</form>';
             }
         }
     } elseif ($doedit == 1) {
         /* Stage two: Write new data */
         $newdata = $editaddr;
         $r = $abook->modify($oldnick, $newdata, $backend);
         /* Handle error messages */
         if (!$r) {
             /* Display error */
             plain_error_message(nl2br(sm_encode_html_special_chars($abook->error)));
             /* Display the "new address" form again */

$nbsp = $oTemplate->fetch('non_breaking_space.tpl');
$br = $oTemplate->fetch('line_break.tpl');
/**
 * Set up the language.
 *
 * This code block corresponds to the *default* block of the switch
 * statement above, but the language cannot be set up until after the
 * template is instantiated, so we set $set_up_langage_after_template_setup
 * above and do the linguistic stuff now.
 */
if ($set_up_langage_after_template_setup) {
    $err = set_up_language(getPref($data_dir, $username, 'language'));
    // Japanese translation used without mbstring support
    if ($err == 2) {
        $sError = "<p>Your administrator needs to have PHP installed with the multibyte string extension enabled (using configure option --enable-mbstring).</p>\n" . "<p>This system has assumed that you accidently switched to Japanese and has reverted your language preference to English.</p>\n" . "<p>Please refresh this page in order to continue using your webmail.</p>\n";
        error_box($sError);
    }
}
/**
 * Initialize our custom error handler object
 */
$oErrorHandler = new ErrorHandler($oTemplate, 'error_message.tpl');
/**
 * Activate custom error handling
 */
if (version_compare(PHP_VERSION, "4.3.0", ">=")) {
    $oldErrorHandler = set_error_handler(array($oErrorHandler, 'SquirrelMailErrorhandler'));
} else {
    $oldErrorHandler = set_error_handler('SquirrelMailErrorhandler');
}
// ============================================================================

/**
 * Selects a mailbox
 */
function sqimap_mailbox_select($imap_stream, $mailbox)
{
    global $auto_expunge;
    if (empty($mailbox)) {
        return;
    }
    /**
     * Default UW IMAP server configuration allows to access other files
     * on server. $imap_server_type is not checked because interface can
     * be used with 'other' or any other server type setting. $mailbox
     * variable can be modified in any script that uses variable from GET 
     * or POST. This code blocks all standard SquirrelMail IMAP API requests 
     * that use mailbox with full path (/etc/passwd) or with ../ characters 
     * in path (../../etc/passwd)
     */
    if (strstr($mailbox, '../') || substr($mailbox, 0, 1) == '/') {
        global $color;
        include_once SM_PATH . 'functions/display_messages.php';
        error_box(sprintf(_("Invalid mailbox name: %s"), htmlspecialchars($mailbox)), $color);
        sqimap_logout($imap_stream);
        die('</body></html>');
    }
    // cleanup $mailbox in order to prevent IMAP injection attacks
    $mailbox = str_replace(array("\r", "\n"), array("", ""), $mailbox);
    $read = sqimap_run_command($imap_stream, "SELECT \"{$mailbox}\"", true, $response, $message);
    $result = array();
    for ($i = 0, $cnt = count($read); $i < $cnt; $i++) {
        if (preg_match('/^\\*\\s+OK\\s\\[(\\w+)\\s(\\w+)\\]/', $read[$i], $regs)) {
            $result[strtoupper($regs[1])] = $regs[2];
        } else {
            if (preg_match('/^\\*\\s([0-9]+)\\s(\\w+)/', $read[$i], $regs)) {
                $result[strtoupper($regs[2])] = $regs[1];
            } else {
                if (preg_match("/PERMANENTFLAGS(.*)/i", $read[$i], $regs)) {
                    $regs[1] = trim(preg_replace(array("/\\(/", "/\\)/", "/\\]/"), '', $regs[1]));
                    $result['PERMANENTFLAGS'] = $regs[1];
                } else {
                    if (preg_match("/FLAGS(.*)/i", $read[$i], $regs)) {
                        $regs[1] = trim(preg_replace(array("/\\(/", "/\\)/"), '', $regs[1]));
                        $result['FLAGS'] = $regs[1];
                    }
                }
            }
        }
    }
    if (preg_match('/^\\[(.+)\\]/', $message, $regs)) {
        $result['RIGHTS'] = $regs[1];
    }
    if ($auto_expunge) {
        $tmp = sqimap_run_command($imap_stream, 'EXPUNGE', false, $a, $b);
    }
    return $result;
}

 * @subpackage squirrelspell
 */
/**
 * Include the SquirrelMail initialization file.
 */
require '../../include/init.php';
/**
 * Set a couple of constants and defaults. Don't change these,
 * the configurable stuff is in sqspell_config.php
 * @todo do we really need $SQSPELL_DIR var?
 */
$SQSPELL_DIR = 'plugins/squirrelspell/';
$SQSPELL_CRYPTO = FALSE;
include_once SM_PATH . $SQSPELL_DIR . 'sqspell_functions.php';
/**
 * $MOD is the name of the module to invoke.
 * If $MOD is unspecified, assign "options_main" to it. Else check for
 * security breach attempts.
 */
if (!sqgetGlobalVar('MOD', $MOD, SQ_FORM)) {
    $MOD = 'options_main';
}
sqspell_ckMOD($MOD);
/* Load the stuff already. */
if (file_exists(SM_PATH . $SQSPELL_DIR . "modules/{$MOD}.mod")) {
    require_once SM_PATH . $SQSPELL_DIR . "modules/{$MOD}.mod";
} else {
    error_box(_("Invalid SquirrelSpell module."));
    // display footer (closes html tags)
    $oTemplate->display('footer.tpl');
}

 /**
  * List all addresses
  * @return array list of all addresses
  */
 function list_addr()
 {
     // check if listing is not disabled
     if (isset($this->listing) && !$this->listing) {
         return array();
     }
     $res = array();
     $this->open();
     @rewind($this->filehandle);
     while ($row = @fgetcsv($this->filehandle, $this->line_length, '|')) {
         if (count($row) < 5) {
             /** address book is corrupted. */
             global $color;
             error_box(_("Address book is corrupted. Required fields are missing."), $color);
             die('</body></html>');
         } else {
             array_push($res, array('nickname' => $row[0], 'name' => $row[1] . ' ' . $row[2], 'firstname' => $row[1], 'lastname' => $row[2], 'email' => $row[3], 'label' => $row[4], 'backend' => $this->bnum, 'source' => &$this->sname));
         }
     }
     return $res;
 }

 * @package squirrelmail
 * @subpackage prefs
 * @since 1.1.3
 */
/** This is the options_identities page */
define('PAGE_NAME', 'options_identities');
/**
 * Include the SquirrelMail initialization file.
 */
require '../include/init.php';
/* SquirrelMail required files. */
require_once SM_PATH . 'functions/identity.php';
require_once SM_PATH . 'functions/forms.php';
/* make sure that page is not available when $edit_identity is false */
if (!$edit_identity) {
    error_box(_("Editing identities is disabled."));
    $oTemplate->display('footer.tpl');
    die;
}
if (!sqgetGlobalVar('identities', $identities, SQ_SESSION)) {
    $identities = get_identities();
}
sqgetGlobalVar('newidentities', $newidentities, SQ_POST);
sqgetGlobalVar('smaction', $smaction, SQ_POST);
sqgetGlobalVar('return', $return, SQ_POST);
sqgetGlobalVar('smtoken', $submitted_token, SQ_POST, '');
// First lets see if there are any actions to perform //
if (!empty($smaction) && is_array($smaction)) {
    // first do a security check
    sm_validate_security_token($submitted_token, -1, TRUE);
    $doaction = '';

/**
 * Checks if configuration is correct
 */
function cpw_peardb_init()
{
    global $oTemplate, $cpw_peardb_detect, $cpw_peardb_dsn, $cpw_peardb_table;
    if (!$cpw_peardb_detect) {
        error_box(_("Plugin is unable to use PHP Pear DB libraries. PHP Pear includes must be available in your PHP include_path setting."));
        $oTemplate->display('footer.tpl');
        exit;
    }
    // Test required settings
    if (is_string($cpw_peardb_dsn) && trim($cpw_peardb_dsn) == '' || trim($cpw_peardb_table) == '') {
        error_box(_("Required change password backend configuration options are missing."));
        $oTemplate->display('footer.tpl');
        exit;
    }
}

 * @since 1.1.3
 */
/** Unknown database */
define('SMDB_UNKNOWN', 0);
/** MySQL */
define('SMDB_MYSQL', 1);
/** PostgreSQL */
define('SMDB_PGSQL', 2);
require_once SM_PATH . 'config/config.php';
if (!(include_once 'DB.php')) {
    // same error also in abook_database.php
    require_once SM_PATH . 'functions/display_messages.php';
    $error = _("Could not include PEAR database functions required for the database backend.") . "<br />\n";
    $error .= sprintf(_("Is PEAR installed, and is the include path set correctly to find %s?"), '<tt>DB.php</tt>') . "<br />\n";
    $error .= _("Please contact your system administrator and report this error.");
    error_box($error, $color);
    exit;
}
global $prefs_are_cached, $prefs_cache;
/**
 * @ignore
 */
function cachePrefValues($username)
{
    global $prefs_are_cached, $prefs_cache;
    sqgetGlobalVar('prefs_are_cached', $prefs_are_cached, SQ_SESSION);
    if ($prefs_are_cached) {
        sqgetGlobalVar('prefs_cache', $prefs_cache, SQ_SESSION);
        return;
    }
    sqsession_unregister('prefs_cache');

function sqimap_append_checkresponse($response, $folder)
{
    if (preg_match("/(.*)(BAD|NO)(.*)\$/", $response, $regs)) {
        global $squirrelmail_language, $color;
        set_up_language($squirrelmail_language);
        require_once SM_PATH . 'functions/display_messages.php';
        $reason = $regs[3];
        if ($regs[2] == 'NO') {
            $string = "<b><font color=\"{$color['2']}\">\n" . _("ERROR: Could not append message to") . " {$folder}." . "</b><br />\n" . _("Server responded:") . ' ' . $reason . "<br />\n";
            if (preg_match("/(.*)(quota)(.*)\$/i", $reason, $regs)) {
                $string .= _("Solution:") . ' ' . _("Remove unneccessary messages from your folders. Start with your Trash folder.") . "<br />\n";
            }
            $string .= "</font>\n";
            error_box($string, $color);
        } else {
            $string = "<b><font color=\"{$color['2']}\">\n" . _("ERROR: Bad or malformed request.") . "</b><br />\n" . _("Server responded:") . ' ' . $reason . "</font><br />\n";
            error_box($string, $color);
            exit;
        }
    }
}