/**
* checks password posting or existing password cookie
*
* @param string $authType override of athorization type
*
* @return bool true if authorized
*/
function zp_handle_password($authType = NULL, $check_auth = NULL, $check_user = NULL)
{
global $_zp_loggedin, $_zp_login_error, $_zp_current_album, $_zp_current_page, $_zp_gallery;
if (empty($authType)) {
// not supplied by caller
$check_auth = '';
if (isset($_GET['z']) && @$_GET['p'] == 'full-image' || isset($_GET['p']) && $_GET['p'] == '*full-image') {
$authType = 'zp_image_auth';
$check_auth = getOption('protected_image_password');
$check_user = getOption('protected_image_user');
} else {
if (in_context(ZP_SEARCH)) {
// search page
$authType = 'zp_search_auth';
$check_auth = getOption('search_password');
$check_user = getOption('search_user');
} else {
if (in_context(ZP_ALBUM)) {
// album page
$authType = "zp_album_auth_" . $_zp_current_album->getID();
$check_auth = $_zp_current_album->getPassword();
$check_user = $_zp_current_album->getUser();
if (empty($check_auth)) {
$parent = $_zp_current_album->getParent();
while (!is_null($parent)) {
$check_auth = $parent->getPassword();
$check_user = $parent->getUser();
$authType = "zp_album_auth_" . $parent->getID();
if (!empty($check_auth)) {
break;
}
$parent = $parent->getParent();
}
}
} else {
if (in_context(ZP_ZENPAGE_PAGE)) {
$authType = "zp_page_auth_" . $_zp_current_page->getID();
$check_auth = $_zp_current_page->getPassword();
$check_user = $_zp_current_page->getUser();
if (empty($check_auth)) {
$pageobj = $_zp_current_page;
while (empty($check_auth)) {
$parentID = $pageobj->getParentID();
if ($parentID == 0) {
break;
}
$sql = 'SELECT `titlelink` FROM ' . prefix('pages') . ' WHERE `id`=' . $parentID;
$result = query_single_row($sql);
$pageobj = new Page($result['titlelink']);
$authType = "zp_page_auth_" . $pageobj->getID();
$check_auth = $pageobj->getPassword();
$check_user = $pageobj->getUser();
}
}
}
}
}
}
if (empty($check_auth)) {
// anything else is controlled by the gallery credentials
$authType = 'zp_gallery_auth';
$check_auth = $_zp_gallery->getPassword();
$check_user = $_zp_gallery->getUser();
}
}
// Handle the login form.
if (DEBUG_LOGIN) {
debugLog("zp_handle_password: \$authType={$authType}; \$check_auth={$check_auth}; \$check_user={$check_user}; ");
}
if (isset($_POST['password']) && isset($_POST['pass'])) {
// process login form
if (isset($_POST['user'])) {
$post_user = sanitize($_POST['user'], 0);
} else {
$post_user = '';
}
$post_pass = sanitize($_POST['pass'], 0);
foreach (Zenphoto_Authority::$hashList as $hash => $hi) {
$auth = Zenphoto_Authority::passwordHash($post_user, $post_pass, $hi);
$success = $auth == $check_auth && $post_user == $check_user;
if (DEBUG_LOGIN) {
debugLog("zp_handle_password({$success}): \$post_user={$post_user}; \$post_pass={$post_pass}; \$check_auth={$check_auth}; \$auth={$auth}; \$hash={$hash};");
}
if ($success) {
break;
}
}
$success = zp_apply_filter('guest_login_attempt', $success, $post_user, $post_pass, $authType);
if ($success) {
// Correct auth info. Set the cookie.
if (DEBUG_LOGIN) {
debugLog("zp_handle_password: valid credentials");
}
zp_setCookie($authType, $auth);
if (isset($_POST['redirect'])) {
$redirect_to = sanitizeRedirect($_POST['redirect'], true);
if (!empty($redirect_to)) {
header("Location: " . $redirect_to);
exitZP();
}
}
} else {
// Clear the cookie, just in case
if (DEBUG_LOGIN) {
debugLog("zp_handle_password: invalid credentials");
}
zp_clearCookie($authType);
$_zp_login_error = true;
}
return $success;
}
if (empty($check_auth)) {
//no password on record or admin logged in
return true;
}
if (($saved_auth = zp_getCookie($authType)) != '') {
if ($saved_auth == $check_auth) {
if (DEBUG_LOGIN) {
debugLog("zp_handle_password: valid cookie");
}
return true;
} else {
// Clear the cookie
if (DEBUG_LOGIN) {
debugLog("zp_handle_password: invalid cookie");
}
zp_clearCookie($authType);
}
}
return false;
}
