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Handle Google Sign-In via separate window instead of proxying #4

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Initial plan
Copilot Feb 2, 2026
73ce674
Add Google Auth interception to open in separate window instead of pr…
Copilot Feb 2, 2026
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4 changes: 2 additions & 2 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -11,8 +11,8 @@ Cloudmoon InPlay is a simple site that proxies, hides, and loads cloudmoon in a

## Use

> [!IMPORTANT]
> Because of google's authentication policies, the google sign in button will NOT WORK. You must hit sign in with email and password instead. You will also need to register your cloudmoon account at home with google and set a password in settings.
> [!NOTE]
> Google Sign-In now opens in a separate popup window (not proxied). This allows you to authenticate directly with Google. Make sure to allow popups for the site when signing in with Google.

Once you sign in, you can click and play games in Cloudmoons library!
After that, you can use the upper navbar to help you navigate, cloak the site with About:Blank, and reload the site with the reload button.
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156 changes: 154 additions & 2 deletions worker.js
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Expand Up @@ -71,18 +71,94 @@ addEventListener('fetch', event => {
(function() {
console.log('CloudMoon Interceptor Injected');

// Helper function to check if URL is Google Auth related
function isGoogleAuthUrl(url) {
if (!url) return false;
const googleAuthPatterns = [
'accounts.google.com',
'googleapis.com/identitytoolkit',
'securetoken.googleapis.com',
'www.googleapis.com/oauth',
'oauth2.googleapis.com',
'google.com/signin',
'google.com/o/oauth'
];
return googleAuthPatterns.some(pattern => url.includes(pattern));
}

// Helper function to de-proxy a URL
function deProxyUrl(url) {
if (!url) return url;

// Check if it's a proxied URL (contains /proxy/)
const proxyMatch = url.match(/\\/proxy\\/(.+)/);
if (proxyMatch) {
try {
return decodeURIComponent(proxyMatch[1]);
} catch (e) {
console.log('Failed to decode proxy URL:', e);
return url;
}
}

// Check if the URL has our worker domain but points to Google
const workerOrigin = window.location.origin;
if (url.startsWith(workerOrigin)) {
// Try to extract the actual Google URL from the path
const pathMatch = url.replace(workerOrigin, '');
if (isGoogleAuthUrl(pathMatch)) {
// Reconstruct as https URL
const cleanPath = pathMatch.startsWith('/') ? pathMatch.slice(1) : pathMatch;
return 'https://' + cleanPath;
}
}

return url;
}

// Helper to safely post message to parent
function postToParent(message) {
if (window.parent && window.parent !== window) {
// Use same origin since the proxy parent page is on the same origin
window.parent.postMessage(message, window.location.origin);
}
}

const originalOpen = window.open;
window.open = function(url, target, features) {
console.log('Intercepted window.open:', url);

// Check for Google Auth URLs - de-proxy and open in separate window
const deProxiedUrl = deProxyUrl(url);
if (isGoogleAuthUrl(deProxiedUrl)) {
console.log('Google Auth URL detected! Opening in separate window:', deProxiedUrl);

// Send message to parent to handle Google Auth in new window
if (window.parent && window.parent !== window) {
postToParent({
type: 'GOOGLE_AUTH',
url: deProxiedUrl
});
} else {
// Fallback: open directly if no parent
return originalOpen.call(this, deProxiedUrl, '_blank', features);
}

return {
closed: false,
close: () => {},
focus: () => {}
};
}

if (url && url.includes('run-site')) {
console.log('Game URL detected!');

if (window.parent && window.parent !== window) {
window.parent.postMessage({
postToParent({
type: 'LOAD_GAME',
url: url
}, '*');
});
} else {
window.location.href = url;
}
Expand All @@ -97,6 +173,60 @@ addEventListener('fetch', event => {
return originalOpen.call(this, url, target, features);
};

// Set up event listeners when DOM is ready
function setupEventListeners() {
// Intercept link clicks that might go to Google Auth
document.addEventListener('click', function(e) {
const link = e.target.closest('a');
if (link && link.href) {
const deProxiedUrl = deProxyUrl(link.href);
if (isGoogleAuthUrl(deProxiedUrl)) {
e.preventDefault();
e.stopPropagation();
console.log('Google Auth link clicked! Opening in separate window:', deProxiedUrl);

if (window.parent && window.parent !== window) {
postToParent({
type: 'GOOGLE_AUTH',
url: deProxiedUrl
});
} else {
window.open(deProxiedUrl, '_blank');
}
}
}
}, true);

// Intercept form submissions to Google Auth
document.addEventListener('submit', function(e) {
const form = e.target;
if (form && form.action) {
const deProxiedUrl = deProxyUrl(form.action);
if (isGoogleAuthUrl(deProxiedUrl)) {
e.preventDefault();
e.stopPropagation();
console.log('Google Auth form detected! Opening in separate window:', deProxiedUrl);

if (window.parent && window.parent !== window) {
postToParent({
type: 'GOOGLE_AUTH',
url: deProxiedUrl
});
} else {
window.open(deProxiedUrl, '_blank');
}
}
}
}, true);
}

// Set up event listeners when DOM is ready
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', setupEventListeners);
} else {
setupEventListeners();
}

})();
</script>
`;
Expand Down Expand Up @@ -434,6 +564,28 @@ addEventListener('fetch', event => {
console.log('Game URL received:', gameUrl);
loadGame(gameUrl);
}

// Handle Google Auth URLs - open in separate window (not proxied)
if (event.data && event.data.type === 'GOOGLE_AUTH') {
const authUrl = event.data.url;
console.log('%c Google Auth URL received - opening in separate window', 'color: #f59e0b; font-weight: bold;');
console.log('Auth URL:', authUrl);
showToast('Opening Google Sign-In in new window...');

// Open Google Auth in a separate popup window (not proxied)
const authWindow = window.open(
authUrl,
'GoogleAuth',
'width=500,height=600,menubar=no,toolbar=no,location=yes,status=yes'
);

if (authWindow) {
authWindow.focus();
} else {
showToast('Popup blocked! Please allow popups for Google Sign-In.');
console.warn('Google Auth popup was blocked. Please allow popups.');
}
}
});

function loadGame(url) {
Expand Down