echo upgradeinformation(0);
} elseif ($step == 4) {
$confirm = $_GET['confirm'];
if (!$confirm) {
if ($_GET['siteftpsetting']) {
$action = $theurl . '&step=4&confirm=ftp' . ($_GET['startupgrade'] ? '&startupgrade=1' : '');
siteftp_form($action);
exit;
}
if ($upgradeinfo['isupdatedb']) {
$checkupdatefilelist = array('install/update.php', 'install/data/install.sql', 'install/data/install_data.sql');
$checkupdatefilelist = array_merge($checkupdatefilelist, $updatefilelist);
} else {
$checkupdatefilelist = $updatefilelist;
}
if ($discuz_upgrade->check_folder_perm($checkupdatefilelist)) {
$confirm = 'file';
} else {
$linkurl = ADMINSCRIPT . '?action=' . $theurl . '&step=4';
$ftplinkurl = $linkurl . '&siteftpsetting=1';
cpmsg('upgrade_cannot_access_file', '', '', array(), '<br /><input type="button" class="btn" onclick="window.location.href=\'' . $ftplinkurl . '\'" value="' . $lang['founder_upgrade_set_ftp'] . '" />' . ' <input type="button" class="btn" onclick="window.location.href=\'' . $linkurl . '\'" value="' . $lang['founder_upgrade_reset'] . '" /><br /><br />');
}
}
$paraftp = '';
if ($_GET['siteftp']) {
foreach ($_GET['siteftp'] as $k => $v) {
$paraftp .= '&siteftp[' . $k . ']=' . $v;
}
}
if (!$_GET['startupgrade']) {
if (!$_GET['backfile']) {
