<?php

/**
 * imap_search.php
 *
 * IMAP search routines
 *
 * @copyright &copy; 1999-2009 The SquirrelMail Project Team
 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
 * @version $Id: imap_search.php 13549 2009-04-15 22:00:49Z jervfors $
 * @package squirrelmail
 * @subpackage imap
 * @deprecated This search interface has been largely replaced by asearch
 */

/**
 * Load up a bunch of SM functions */
require_once(SM_PATH . 'functions/imap.php');
require_once(SM_PATH . 'functions/date.php');
require_once(SM_PATH . 'functions/mailbox_display.php');
require_once(SM_PATH . 'functions/mime.php');

function sqimap_search($imapConnection, $search_where, $search_what, $mailbox,
                       $color, $search_position = '', $search_all, $count_all) {

    global $message_highlight_list, $squirrelmail_language, $languages,
           $index_order, $pos, $allow_charset_search, $uid_support,
	   $imap_server_type;

    $pos = $search_position;

    $urlMailbox = urlencode($mailbox);

    /* construct the search query, taking multiple search terms into account */
    $multi_search = array();
    $search_what  = trim($search_what);
    $search_what  = ereg_replace('[ ]{2,}', ' ', $search_what);
    $multi_search = explode(' ', $search_what);
    $search_string = '';

    /* it seems macosx and hmailserver do not support the prefered search
       syntax so we fall back to the older style. This IMAP
       server has a problem with multiple search terms. Instead
       of returning the messages that match all the terms it
       returns the messages that match each term. Could be fixed
       on the client side, but should be fixed on the server
       as per the RFC */

    if ($imap_server_type == 'macosx' || $imap_server_type == 'hmailserver') {
        foreach ($multi_search as $multi_search_part) {
            if (strtoupper($languages[$squirrelmail_language]['CHARSET']) == 'ISO-2022-JP') {
                $multi_search_part = mb_convert_encoding($multi_search_part, 'JIS', 'auto');
            }
            $search_string .= $search_where . ' ' .$multi_search_part . ' ';
        }
    }
    else {
        foreach ($multi_search as $multi_search_part) {
            if (strtoupper($languages[$squirrelmail_language]['CHARSET']) == 'ISO-2022-JP') {
                $multi_search_part = mb_convert_encoding($multi_search_part, 'JIS', 'auto');
            }
            $search_string .= $search_where . ' {' . strlen($multi_search_part)
                . "}\r\n" . $multi_search_part . ' ';
        }
    }

    $search_string = trim($search_string);

    /* now use $search_string in the imap search */
    if ($allow_charset_search && isset($languages[$squirrelmail_language]['CHARSET']) &&
        $languages[$squirrelmail_language]['CHARSET']) {
        $ss = "SEARCH CHARSET "
            . strtoupper($languages[$squirrelmail_language]['CHARSET'])
            . " ALL $search_string";
    } else {
        $ss = "SEARCH ALL $search_string";
    }

    /* read data back from IMAP */
    $readin = sqimap_run_command($imapConnection, $ss, false, $result, $message, $uid_support);

    /* try US-ASCII charset if search fails */
    if (isset($languages[$squirrelmail_language]['CHARSET'])
        && strtolower($result) == 'no') {
        $ss = "SEARCH CHARSET \"US-ASCII\" ALL $search_string";
        $readin = sqimap_run_command ($imapConnection, $ss, true,
                                      $result, $message, $uid_support);
    }

    unset($messagelist);

    /* Keep going till we find the SEARCH response */
    foreach ($readin as $readin_part) {
        /* Check to see if a SEARCH response was received */
        if (substr($readin_part, 0, 9) == '* SEARCH ') {
            $messagelist = preg_split("/ /", substr($readin_part, 9));
        } else if (isset($errors)) {
            $errors = $errors.$readin_part;
        } else {
            $errors = $readin_part;
        }
    }

    /* If nothing is found * SEARCH should be the first error else echo errors */
    if (isset($errors)) {
        if (strstr($errors,'* SEARCH')) {
            return array();
        }
        echo '<!-- '.htmlspecialchars($errors) .' -->';
    }


    global $sent_folder;

    $cnt = count($messagelist);
    for ($q = 0; $q < $cnt; $q++) {
        $id[$q] = trim($messagelist[$q]);
    }
    $issent = ($mailbox == $sent_folder);

    $msgs = fillMessageArray($imapConnection,$id,$cnt);

    return $msgs;
}