function lockdownbrowser_set_settings($quizid, $reqquiz, $reqreview, $exitpass, $monitor)
{
$ldbopt = new stdClass();
$ldbopt->attempts = $reqquiz;
$ldbopt->reviews = $reqreview;
$ldbopt->password = $exitpass;
$ldbopt->monitor = $monitor;
return lockdownbrowser_set_quiz_options($quizid, $ldbopt);
}
function lockdownbrowser_MonitorActionChangeSettings($parameters)
{
global $DB;
if (!isloggedin()) {
lockdownbrowser_MonitorServiceError(2004, "Must be logged in to perform the requested action");
}
if (!is_siteadmin()) {
lockdownbrowser_MonitorServiceError(2024, "Must be logged in as admin to perform the requested action");
}
if (!isset($parameters["courseRefId"]) || strlen($parameters["courseRefId"]) == 0) {
lockdownbrowser_MonitorServiceError(2025, "No courseRefId parameter was specified");
}
if (!isset($parameters["examId"]) || strlen($parameters["examId"]) == 0) {
lockdownbrowser_MonitorServiceError(2026, "No examId parameter was specified");
}
if (!isset($parameters["enableLDB"]) || strlen($parameters["enableLDB"]) == 0) {
lockdownbrowser_MonitorServiceError(2040, "No enableLDB parameter was specified");
}
if (!isset($parameters["enableMonitor"]) || strlen($parameters["enableMonitor"]) == 0) {
lockdownbrowser_MonitorServiceError(2041, "No enableMonitor parameter was specified");
}
if (!isset($parameters["exitPassword"])) {
lockdownbrowser_MonitorServiceError(2042, "No exitPassword parameter was specified");
}
if (!isset($parameters["xdata"])) {
lockdownbrowser_MonitorServiceError(2043, "No xdata parameter was specified");
}
$course_id = intval($parameters["courseRefId"]);
$exam_id = intval($parameters["examId"]);
$enable_ldb = $parameters["enableLDB"];
if ($enable_ldb == "0" || strcasecmp($enable_ldb, "false") == 0) {
$enable_ldb = FALSE;
} else {
$enable_ldb = TRUE;
}
$enable_monitor = $parameters["enableMonitor"];
if ($enable_monitor == "0" || strcasecmp($enable_monitor, "false") == 0) {
$enable_monitor = FALSE;
} else {
$enable_monitor = TRUE;
}
$exit_password = $parameters["exitPassword"];
$xdata = $parameters["xdata"];
if ($enable_monitor) {
$monitor = $xdata;
} else {
$monitor = "";
}
$course_module = $DB->get_record("course_modules", array("id" => $exam_id));
if ($course_module === FALSE) {
lockdownbrowser_MonitorServiceError(2027, "The specified examId is invalid: {$exam_id}");
}
$modrec = $DB->get_record("modules", array("id" => $course_module->module));
if ($modrec === FALSE) {
lockdownbrowser_MonitorServiceError(2034, "Could not find the specified quiz (module error)");
}
$quiz = $DB->get_record($modrec->name, array("id" => $course_module->instance));
if ($quiz === FALSE) {
lockdownbrowser_MonitorServiceError(2035, "Could not find the specified quiz (instance error)");
}
// Moodle browser security
// popup (0=none, 1=full screen pop-up with some JavaScript security)
// Moodle 2.2.0+ (quiz module 2011100600+)
// browsersecurity ('-', 'securewindow', 'safebrowser')
// if this setting is not disabled, it will interfere with the LDB integration
if ($enable_ldb) {
$quiz->popup = 0;
$quiz->browsersecurity = "-";
}
$ldb_decoration = get_string("requires_ldb", "block_lockdownbrowser");
$monitor_decoration = get_string("requires_webcam", "block_lockdownbrowser");
// must be in this order, since the first decoration usually contains the second
$quiz->name = str_replace($monitor_decoration, "", $quiz->name);
$quiz->name = str_replace($ldb_decoration, "", $quiz->name);
if ($enable_ldb) {
if ($enable_monitor) {
$quiz->name .= $monitor_decoration;
} else {
$quiz->name .= $ldb_decoration;
}
}
$settings = lockdownbrowser_get_quiz_options($quiz->id);
if ($settings === FALSE) {
if ($enable_ldb) {
$ok = lockdownbrowser_set_settings($quiz->id, 0, 0, $exit_password, $monitor);
if (!$ok) {
lockdownbrowser_MonitorServiceError(2036, "Quiz settings changes failed (block error)");
}
}
} else {
// settings found
if ($enable_ldb) {
$settings->password = $exit_password;
$settings->monitor = $monitor;
$ok = lockdownbrowser_set_quiz_options($quiz->id, $settings);
if (!$ok) {
lockdownbrowser_MonitorServiceError(2036, "Quiz settings changes failed (block error)");
}
} else {
lockdownbrowser_delete_options($quiz->id);
}
}
$ok = $DB->update_record($modrec->name, $quiz);
if (!$ok) {
lockdownbrowser_MonitorServiceError(2036, "Quiz settings changes failed (module error)");
}
rebuild_course_cache($course_id);
lockdownbrowser_MonitorServiceStatus(1003, "Quiz settings changes succeeded");
}