/**
* QTest Security - Anti-cheat and Anti-refresh
*/
(function($) {
'use strict';
// Only apply security if quiz is active
if (typeof quicktestwpData === 'undefined') {
return;
}
let testStarted = false;
let testCompleted = false;
const testSessionKey = 'quicktestwp_session_' + quicktestwpData.testId;
// Tab switch detection variables (shared across all calls)
let tabSwitchListenersAdded = false;
let switchCount = 0;
let isShowingPopup = false;
const maxSwitches = 3;
let tabSwitchHandler = null;
// Right-click detection variables (shared across all calls)
let rightClickListenersAdded = false;
let rightClickHandler = null;
let isShowingRightClickPopup = false;
// Copy/paste detection variables
let copyPasteListenersAdded = false;
let copyHandler = null;
let pasteHandler = null;
let cutHandler = null;
let selectStartHandler = null;
// Dev tools detection variables
let devToolsListenersAdded = false;
let devToolsHandler = null;
// Print screen detection variables
let printScreenListenersAdded = false;
let printScreenHandler = null;
// Check if test was already started
const sessionData = sessionStorage.getItem(testSessionKey);
if (sessionData) {
const data = JSON.parse(sessionData);
if (data.started && !data.completed) {
testStarted = true;
// Show warning
if (typeof QTestPopup !== 'undefined') {
QTestPopup.warning('You have an active test session. Continuing from where you left off.');
}
} else if (data.completed) {
testCompleted = true;
}
}
// Mark test as started
function markTestStarted() {
testStarted = true;
sessionStorage.setItem(testSessionKey, JSON.stringify({
started: true,
completed: false,
startTime: new Date().toISOString()
}));
}
// Mark test as completed
function markTestCompleted() {
testCompleted = true;
sessionStorage.setItem(testSessionKey, JSON.stringify({
started: true,
completed: true,
completedTime: new Date().toISOString()
}));
}
// Prevent page refresh/close
let beforeUnloadHandler = null;
let allowNavigation = false; // Flag to allow legitimate navigation
function preventRefresh() {
if (!testStarted || testCompleted || allowNavigation) {
return;
}
beforeUnloadHandler = function(e) {
// Don't show prompt if navigation is allowed
if (allowNavigation || testCompleted) {
return;
}
e.preventDefault();
e.returnValue = 'Are you sure you want to leave? Your test progress may be lost.';
return e.returnValue;
};
window.addEventListener('beforeunload', beforeUnloadHandler);
}
function removeRefreshPrevention() {
// Set flag to allow navigation
allowNavigation = true;
testCompleted = true;
if (beforeUnloadHandler) {
window.removeEventListener('beforeunload', beforeUnloadHandler);
beforeUnloadHandler = null;
}
}
// Disable right click
function disableRightClick() {
if (testCompleted) return;
// Prevent adding multiple event listeners
if (rightClickListenersAdded) {
return;
}
rightClickListenersAdded = true;
rightClickHandler = function(e) {
if (testStarted && !testCompleted) {
e.preventDefault();
e.stopPropagation(); // Prevent event from bubbling to other listeners
e.stopImmediatePropagation(); // Stop all other listeners on the same element
// Prevent showing multiple popups at the same time
if (isShowingRightClickPopup) {
return false;
}
isShowingRightClickPopup = true;
if (typeof QTestPopup !== 'undefined') {
QTestPopup.warning('Right-click is disabled during the test.', function() {
isShowingRightClickPopup = false;
});
} else {
// Reset flag after a delay if no popup system
setTimeout(function() {
isShowingRightClickPopup = false;
}, 1000);
}
return false;
}
};
document.addEventListener('contextmenu', rightClickHandler);
}
// Disable copy/paste
function disableCopyPaste() {
if (testCompleted) return;
// Prevent adding multiple event listeners
if (copyPasteListenersAdded) return;
copyPasteListenersAdded = true;
// Disable copy (Ctrl+C, Cmd+C)
copyHandler = function(e) {
if (testStarted && !testCompleted) {
e.preventDefault();
if (typeof QTestPopup !== 'undefined') {
QTestPopup.warning('Copying is disabled during the test.');
}
return false;
}
};
document.addEventListener('copy', copyHandler);
// Disable paste (Ctrl+V, Cmd+V)
pasteHandler = function(e) {
if (testStarted && !testCompleted) {
e.preventDefault();
if (typeof QTestPopup !== 'undefined') {
QTestPopup.warning('Pasting is disabled during the test.');
}
return false;
}
};
document.addEventListener('paste', pasteHandler);
// Disable cut (Ctrl+X, Cmd+X)
cutHandler = function(e) {
if (testStarted && !testCompleted) {
e.preventDefault();
return false;
}
};
document.addEventListener('cut', cutHandler);
// Disable text selection (except in form inputs)
selectStartHandler = function(e) {
if (testStarted && !testCompleted) {
// Allow selection in input fields and completion form
const target = e.target;
if (target.tagName === 'INPUT' ||
target.tagName === 'TEXTAREA' ||
$(target).closest('.quicktestwp-completion-form').length > 0 ||
$(target).closest('.quicktestwp-result-display').length > 0) {
return true;
}
e.preventDefault();
return false;
}
};
document.addEventListener('selectstart', selectStartHandler);
}
// Disable developer tools shortcuts
function disableDevTools() {
if (testCompleted) return;
// Prevent adding multiple event listeners
if (devToolsListenersAdded) return;
devToolsListenersAdded = true;
devToolsHandler = function(e) {
if (!testStarted || testCompleted) return;
// Disable F12
if (e.keyCode === 123) {
e.preventDefault();
if (typeof QTestPopup !== 'undefined') {
QTestPopup.warning('Developer tools are disabled during the test.');
}
return false;
}
// Disable Ctrl+Shift+I (Chrome DevTools)
if (e.ctrlKey && e.shiftKey && e.keyCode === 73) {
e.preventDefault();
if (typeof QTestPopup !== 'undefined') {
QTestPopup.warning('Developer tools are disabled during the test.');
}
return false;
}
// Disable Ctrl+Shift+J (Chrome Console)
if (e.ctrlKey && e.shiftKey && e.keyCode === 74) {
e.preventDefault();
if (typeof QTestPopup !== 'undefined') {
QTestPopup.warning('Developer tools are disabled during the test.');
}
return false;
}
// Disable Ctrl+Shift+C (Chrome Element Inspector)
if (e.ctrlKey && e.shiftKey && e.keyCode === 67) {
e.preventDefault();
if (typeof QTestPopup !== 'undefined') {
QTestPopup.warning('Developer tools are disabled during the test.');
}
return false;
}
// Disable Ctrl+U (View Source)
if (e.ctrlKey && e.keyCode === 85) {
e.preventDefault();
if (typeof QTestPopup !== 'undefined') {
QTestPopup.warning('View source is disabled during the test.');
}
return false;
}
// Disable Ctrl+S (Save Page)
if (e.ctrlKey && e.keyCode === 83 && !e.shiftKey) {
e.preventDefault();
return false;
}
};
document.addEventListener('keydown', devToolsHandler);
}
// Detect tab/window switching
function detectTabSwitch() {
if (testCompleted) return;
// Prevent adding multiple event listeners
if (tabSwitchListenersAdded) return;
tabSwitchListenersAdded = true;
let isTabActive = true;
let lastSwitchTime = 0;
const debounceTime = 500; // Prevent multiple triggers within 500ms
// Use only visibilitychange event (more reliable than blur)
tabSwitchHandler = function() {
if (document.hidden) {
isTabActive = false;
if (testStarted && !testCompleted && !isShowingPopup) {
// Debounce: prevent multiple triggers in quick succession
const now = Date.now();
if (now - lastSwitchTime < debounceTime) {
return;
}
lastSwitchTime = now;
switchCount++;
// Prevent showing multiple popups at the same time
if (isShowingPopup) return;
isShowingPopup = true;
if (switchCount > maxSwitches) {
if (typeof QTestPopup !== 'undefined') {
QTestPopup.error('You have switched tabs/windows too many times. The test will be submitted automatically.', function() {
isShowingPopup = false;
// Trigger form submission
if ($('#quicktestwp-submit-btn').length && $('#quicktestwp-submit-btn').is(':visible')) {
$('#quicktestwp-submit-btn').click();
} else {
// Show completion form
$(document).trigger('quicktestwp:forceSubmit');
}
});
} else {
isShowingPopup = false;
// Show completion form directly
$(document).trigger('quicktestwp:forceSubmit');
}
} else {
if (typeof QTestPopup !== 'undefined') {
QTestPopup.warning('Warning: You switched tabs/windows. (' + switchCount + '/' + maxSwitches + ' warnings)', function() {
isShowingPopup = false;
});
} else {
isShowingPopup = false;
}
}
}
} else {
isTabActive = true;
// Reset popup flag when tab becomes visible again
setTimeout(function() {
isShowingPopup = false;
}, 1000);
}
};
document.addEventListener('visibilitychange', tabSwitchHandler);
}
// Disable print screen
function disablePrintScreen() {
if (testCompleted) return;
// Prevent adding multiple event listeners
if (printScreenListenersAdded) return;
printScreenListenersAdded = true;
printScreenHandler = function(e) {
if (!testStarted || testCompleted) return;
// Disable Print Screen
if (e.keyCode === 44) { // Print Screen key
if (typeof QTestPopup !== 'undefined') {
QTestPopup.warning('Screenshots are not allowed during the test.');
}
}
};
document.addEventListener('keyup', printScreenHandler);
}
// Initialize security when test starts
function initSecurity() {
if (testCompleted) {
return; // Don't enable security if test is already completed
}
markTestStarted();
preventRefresh();
disableRightClick();
disableCopyPaste();
disableDevTools();
detectTabSwitch();
disablePrintScreen();
// Add visual indicator that security is active
if ($('.quicktestwp-security-indicator').length === 0) {
$('body').append('<div class="quicktestwp-security-indicator" title="Security mode active" style="position: fixed; bottom: 10px; right: 10px; width: 12px; height: 12px; background-color: #34a853; border-radius: 50%; z-index: 9999; box-shadow: 0 2px 4px rgba(0,0,0,0.2);"></div>');
}
}
// Remove security indicator
function removeSecurityIndicator() {
$('.quicktestwp-security-indicator').remove();
}
// Initialize security when page loads (if test is active)
$(document).ready(function() {
// Wait a bit for quiz to initialize
setTimeout(function() {
if ($('.quicktestwp-question-page.active').length > 0 && !testCompleted) {
initSecurity();
}
}, 500);
// Also initialize when first question is shown
$(document).on('quicktestwp:testStarted', function() {
if (!testStarted) {
initSecurity();
}
});
});
// Remove right-click listener
function removeRightClickPrevention() {
if (rightClickHandler) {
document.removeEventListener('contextmenu', rightClickHandler);
rightClickHandler = null;
rightClickListenersAdded = false;
isShowingRightClickPopup = false;
}
}
// Remove copy/paste listeners
function removeCopyPastePrevention() {
if (copyHandler) {
document.removeEventListener('copy', copyHandler);
copyHandler = null;
}
if (pasteHandler) {
document.removeEventListener('paste', pasteHandler);
pasteHandler = null;
}
if (cutHandler) {
document.removeEventListener('cut', cutHandler);
cutHandler = null;
}
if (selectStartHandler) {
document.removeEventListener('selectstart', selectStartHandler);
selectStartHandler = null;
}
copyPasteListenersAdded = false;
}
// Remove dev tools listener
function removeDevToolsPrevention() {
if (devToolsHandler) {
document.removeEventListener('keydown', devToolsHandler);
devToolsHandler = null;
devToolsListenersAdded = false;
}
}
// Remove print screen listener
function removePrintScreenPrevention() {
if (printScreenHandler) {
document.removeEventListener('keyup', printScreenHandler);
printScreenHandler = null;
printScreenListenersAdded = false;
}
}
// Remove tab switch listener
function removeTabSwitchPrevention() {
if (tabSwitchHandler) {
document.removeEventListener('visibilitychange', tabSwitchHandler);
tabSwitchHandler = null;
tabSwitchListenersAdded = false;
}
}
// Mark test as completed when form is submitted
$(document).on('quicktestwp:testCompleted', function() {
markTestCompleted();
// Re-enable all features
testCompleted = true;
removeSecurityIndicator();
removeRefreshPrevention();
removeRightClickPrevention();
removeCopyPastePrevention();
removeDevToolsPrevention();
removePrintScreenPrevention();
removeTabSwitchPrevention();
});
// Export functions for use in main script
window.QTestSecurity = {
markTestStarted: markTestStarted,
markTestCompleted: markTestCompleted,
initSecurity: initSecurity,
removeRefreshPrevention: removeRefreshPrevention
};
})(jQuery);
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