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Parse the cookiegate step as an integer before arithmetic - #3

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daedeloth merged 1 commit into
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fix/cookiegate-non-numeric-step
Aug 27, 2026
Merged

Parse the cookiegate step as an integer before arithmetic#3
daedeloth merged 1 commit into
masterfrom
fix/cookiegate-non-numeric-step

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Summary

  • LoginController::cookieGate() added 1 to the raw ?cookiegate= query value. A leading-numeric value like 1' (seen in production on api.quizwitz.com, Errbit) raised "A non-numeric value encountered" and, since switch compares strictly on PHP 8, fell through to the cookie error page instead of the intended step.
  • New getCookieGateStep(array $input) coerces the step to int (arrays / garbage → 0), and the rebuilt redirect URL carries the clean integer.

Resolves CatLabInteractive/api.quizwitz.com#65 once released and pulled in there.

Test plan

  • tests/LoginControllerCookieGateTest.php — reproduces the warning on the old code (cookiegate=3'), asserts none are raised now, and covers the parsing table (missing / plain / leading-numeric / garbage / array).
  • vendor/bin/phpunit — 46 tests, 109 assertions, green on PHP 8.5.4.

🤖 Generated with Claude Code

https://claude.ai/code/session_01KxezEAzj4JsB47kEMVaxGc

The cookie gate reads its hop counter from ?cookiegate=, which is
attacker-controlled. A leading-numeric value such as "1'" was added to
as-is, raising "A non-numeric value encountered" (reported via Errbit on
api.quizwitz.com) and, because the switch compares strictly on PHP 8,
skipping straight to the cookie error page.
Read the step through getCookieGateStep(), which coerces to int and
treats arrays/garbage as the first hop, so the redirect URL is rebuilt
with a clean integer too.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KxezEAzj4JsB47kEMVaxGc
@daedeloth
daedeloth merged commit dfdfd59 into masterAug 27, 2026
5 checks passed
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, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
Parse the cookiegate step as an integer before arithmetic by daedeloth · Pull Request #3 · CatLabInteractive/OpenID-Connect-Client · GitHub
Skip to content

Parse the cookiegate step as an integer before arithmetic - #3

Merged
daedeloth merged 1 commit into
masterfrom
fix/cookiegate-non-numeric-step
Aug 27, 2026
Merged

Parse the cookiegate step as an integer before arithmetic#3
daedeloth merged 1 commit into
masterfrom
fix/cookiegate-non-numeric-step

Conversation

@daedeloth

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Summary

  • LoginController::cookieGate() added 1 to the raw ?cookiegate= query value. A leading-numeric value like 1' (seen in production on api.quizwitz.com, Errbit) raised "A non-numeric value encountered" and, since switch compares strictly on PHP 8, fell through to the cookie error page instead of the intended step.
  • New getCookieGateStep(array $input) coerces the step to int (arrays / garbage → 0), and the rebuilt redirect URL carries the clean integer.

Resolves CatLabInteractive/api.quizwitz.com#65 once released and pulled in there.

Test plan

  • tests/LoginControllerCookieGateTest.php — reproduces the warning on the old code (cookiegate=3'), asserts none are raised now, and covers the parsing table (missing / plain / leading-numeric / garbage / array).
  • vendor/bin/phpunit — 46 tests, 109 assertions, green on PHP 8.5.4.

🤖 Generated with Claude Code

https://claude.ai/code/session_01KxezEAzj4JsB47kEMVaxGc

The cookie gate reads its hop counter from ?cookiegate=, which is
attacker-controlled. A leading-numeric value such as "1'" was added to
as-is, raising "A non-numeric value encountered" (reported via Errbit on
api.quizwitz.com) and, because the switch compares strictly on PHP 8,
skipping straight to the cookie error page.
Read the step through getCookieGateStep(), which coerces to int and
treats arrays/garbage as the first hop, so the redirect URL is rebuilt
with a clean integer too.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KxezEAzj4JsB47kEMVaxGc
@daedeloth
daedeloth merged commit dfdfd59 into masterAug 27, 2026
5 checks passed
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@daedeloth
, 'i'); if (__m === '*' || __re.test(location.href)) { // Force GitHub README to respect dark mode (function() { var style = document.createElement('style'); style.textContent = ' .markdown-body { color-scheme: dark light; } .markdown-body pre { background: #161b22 !important; } .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; } .markdown-body table th, .markdown-body table td { border-color: #30363d !important; } .markdown-body img { background: #0d1117; } .markdown-body blockquote { border-left-color: #8b949e; } .markdown-body hr { border-color: #30363d; } '; document.head.appendChild(style); })(); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' Parse the cookiegate step as an integer before arithmetic by daedeloth · Pull Request #3 · CatLabInteractive/OpenID-Connect-Client · GitHub
Skip to content

Parse the cookiegate step as an integer before arithmetic - #3

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daedeloth merged 1 commit into
masterfrom
fix/cookiegate-non-numeric-step
Aug 27, 2026
Merged

Parse the cookiegate step as an integer before arithmetic#3
daedeloth merged 1 commit into
masterfrom
fix/cookiegate-non-numeric-step

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@daedeloth

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Summary

  • LoginController::cookieGate() added 1 to the raw ?cookiegate= query value. A leading-numeric value like 1' (seen in production on api.quizwitz.com, Errbit) raised "A non-numeric value encountered" and, since switch compares strictly on PHP 8, fell through to the cookie error page instead of the intended step.
  • New getCookieGateStep(array $input) coerces the step to int (arrays / garbage → 0), and the rebuilt redirect URL carries the clean integer.

Resolves CatLabInteractive/api.quizwitz.com#65 once released and pulled in there.

Test plan

  • tests/LoginControllerCookieGateTest.php — reproduces the warning on the old code (cookiegate=3'), asserts none are raised now, and covers the parsing table (missing / plain / leading-numeric / garbage / array).
  • vendor/bin/phpunit — 46 tests, 109 assertions, green on PHP 8.5.4.

🤖 Generated with Claude Code

https://claude.ai/code/session_01KxezEAzj4JsB47kEMVaxGc

The cookie gate reads its hop counter from ?cookiegate=, which is
attacker-controlled. A leading-numeric value such as "1'" was added to
as-is, raising "A non-numeric value encountered" (reported via Errbit on
api.quizwitz.com) and, because the switch compares strictly on PHP 8,
skipping straight to the cookie error page.
Read the step through getCookieGateStep(), which coerces to int and
treats arrays/garbage as the first hop, so the redirect URL is rebuilt
with a clean integer too.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KxezEAzj4JsB47kEMVaxGc
@daedeloth
daedeloth merged commit dfdfd59 into masterAug 27, 2026
5 checks passed
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@daedeloth
, 'i'); if (__m === '*' || __re.test(location.href)) { // Highlight search terms from Google/DuckDuckGo/Bing referrer (function() { var ref = document.referrer; var terms = []; if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) { var url = new URL(ref); var q = url.searchParams.get('q') || url.searchParams.get('p'); if (q) { terms = q.split(/\s+/).filter(function(t) { return t.length > 2; }); } } if (terms.length === 0) return; var style = document.createElement('style'); style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }'; document.head.appendChild(style); function highlight(node) { if (node.nodeType === 3) { // text node var text = node.textContent; var found = false; terms.forEach(function(term) { var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi'); if (regex.test(text)) { found = true; var frag = document.createDocumentFragment(); var parts = text.split(regex); parts.forEach(function(part, i) { if (i % 2 === 0) { frag.appendChild(document.createTextNode(part)); } else { var span = document.createElement('span'); span.className = 'userscript-highlight'; span.textContent = part; frag.appendChild(span); } }); node.parentNode.replaceChild(frag, node); } }); } else if (node.nodeType === 1 && node.childNodes) { // element var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT']; if (!skipTags.includes(node.tagName)) { Array.from(node.childNodes).forEach(highlight); } } } highlight(document.body); // Re-highlight on dynamic content var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1 || node.nodeType === 3) highlight(node); }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' Parse the cookiegate step as an integer before arithmetic by daedeloth · Pull Request #3 · CatLabInteractive/OpenID-Connect-Client · GitHub
Skip to content

Parse the cookiegate step as an integer before arithmetic - #3

Merged
daedeloth merged 1 commit into
masterfrom
fix/cookiegate-non-numeric-step
Aug 27, 2026
Merged

Parse the cookiegate step as an integer before arithmetic#3
daedeloth merged 1 commit into
masterfrom
fix/cookiegate-non-numeric-step

Conversation

@daedeloth

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Summary

  • LoginController::cookieGate() added 1 to the raw ?cookiegate= query value. A leading-numeric value like 1' (seen in production on api.quizwitz.com, Errbit) raised "A non-numeric value encountered" and, since switch compares strictly on PHP 8, fell through to the cookie error page instead of the intended step.
  • New getCookieGateStep(array $input) coerces the step to int (arrays / garbage → 0), and the rebuilt redirect URL carries the clean integer.

Resolves CatLabInteractive/api.quizwitz.com#65 once released and pulled in there.

Test plan

  • tests/LoginControllerCookieGateTest.php — reproduces the warning on the old code (cookiegate=3'), asserts none are raised now, and covers the parsing table (missing / plain / leading-numeric / garbage / array).
  • vendor/bin/phpunit — 46 tests, 109 assertions, green on PHP 8.5.4.

🤖 Generated with Claude Code

https://claude.ai/code/session_01KxezEAzj4JsB47kEMVaxGc

The cookie gate reads its hop counter from ?cookiegate=, which is
attacker-controlled. A leading-numeric value such as "1'" was added to
as-is, raising "A non-numeric value encountered" (reported via Errbit on
api.quizwitz.com) and, because the switch compares strictly on PHP 8,
skipping straight to the cookie error page.
Read the step through getCookieGateStep(), which coerces to int and
treats arrays/garbage as the first hop, so the redirect URL is rebuilt
with a clean integer too.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KxezEAzj4JsB47kEMVaxGc
@daedeloth
daedeloth merged commit dfdfd59 into masterAug 27, 2026
5 checks passed
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@daedeloth
, 'i'); if (__m === '*' || __re.test(location.href)) { // Strip utm_, fbclid, gclid, etc. from all links on page (function() { var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content', 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid', 'ref', 'ref_src', 'source', 'medium', 'campaign']; function cleanUrl(url) { try { var u = new URL(url, window.location.origin); var changed = false; trackingParams.forEach(function(p) { if (u.searchParams.has(p)) { u.searchParams.delete(p); changed = true; } }); return changed ? u.toString() : url; } catch (e) { return url; } } function cleanLinks() { document.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } cleanLinks(); var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1) { if (node.tagName === 'A') cleanLinks(); node.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + ' Parse the cookiegate step as an integer before arithmetic by daedeloth · Pull Request #3 · CatLabInteractive/OpenID-Connect-Client · GitHub
Skip to content

Parse the cookiegate step as an integer before arithmetic - #3

Merged
daedeloth merged 1 commit into
masterfrom
fix/cookiegate-non-numeric-step
Aug 27, 2026
Merged

Parse the cookiegate step as an integer before arithmetic#3
daedeloth merged 1 commit into
masterfrom
fix/cookiegate-non-numeric-step

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@daedeloth

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Summary

  • LoginController::cookieGate() added 1 to the raw ?cookiegate= query value. A leading-numeric value like 1' (seen in production on api.quizwitz.com, Errbit) raised "A non-numeric value encountered" and, since switch compares strictly on PHP 8, fell through to the cookie error page instead of the intended step.
  • New getCookieGateStep(array $input) coerces the step to int (arrays / garbage → 0), and the rebuilt redirect URL carries the clean integer.

Resolves CatLabInteractive/api.quizwitz.com#65 once released and pulled in there.

Test plan

  • tests/LoginControllerCookieGateTest.php — reproduces the warning on the old code (cookiegate=3'), asserts none are raised now, and covers the parsing table (missing / plain / leading-numeric / garbage / array).
  • vendor/bin/phpunit — 46 tests, 109 assertions, green on PHP 8.5.4.

🤖 Generated with Claude Code

https://claude.ai/code/session_01KxezEAzj4JsB47kEMVaxGc

The cookie gate reads its hop counter from ?cookiegate=, which is
attacker-controlled. A leading-numeric value such as "1'" was added to
as-is, raising "A non-numeric value encountered" (reported via Errbit on
api.quizwitz.com) and, because the switch compares strictly on PHP 8,
skipping straight to the cookie error page.
Read the step through getCookieGateStep(), which coerces to int and
treats arrays/garbage as the first hop, so the redirect URL is rebuilt
with a clean integer too.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KxezEAzj4JsB47kEMVaxGc
@daedeloth
daedeloth merged commit dfdfd59 into masterAug 27, 2026
5 checks passed
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@daedeloth
, 'i'); if (__m === '*' || __re.test(location.href)) { // Auto-enable theater mode on YouTube (function() { function tryTheater() { var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]'); if (btn && !btn.classList.contains('activated')) { btn.click(); } } // Try immediately tryTheater(); // Try after navigation (SPA) var lastUrl = location.href; setInterval(function() { if (location.href !== lastUrl) { lastUrl = location.href; setTimeout(tryTheater, 500); } }, 1000); // Also try on player load var observer = new MutationObserver(tryTheater); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' Parse the cookiegate step as an integer before arithmetic by daedeloth · Pull Request #3 · CatLabInteractive/OpenID-Connect-Client · GitHub
Skip to content

Parse the cookiegate step as an integer before arithmetic - #3

Merged
daedeloth merged 1 commit into
masterfrom
fix/cookiegate-non-numeric-step
Aug 27, 2026
Merged

Parse the cookiegate step as an integer before arithmetic#3
daedeloth merged 1 commit into
masterfrom
fix/cookiegate-non-numeric-step

Conversation

@daedeloth

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Summary

  • LoginController::cookieGate() added 1 to the raw ?cookiegate= query value. A leading-numeric value like 1' (seen in production on api.quizwitz.com, Errbit) raised "A non-numeric value encountered" and, since switch compares strictly on PHP 8, fell through to the cookie error page instead of the intended step.
  • New getCookieGateStep(array $input) coerces the step to int (arrays / garbage → 0), and the rebuilt redirect URL carries the clean integer.

Resolves CatLabInteractive/api.quizwitz.com#65 once released and pulled in there.

Test plan

  • tests/LoginControllerCookieGateTest.php — reproduces the warning on the old code (cookiegate=3'), asserts none are raised now, and covers the parsing table (missing / plain / leading-numeric / garbage / array).
  • vendor/bin/phpunit — 46 tests, 109 assertions, green on PHP 8.5.4.

🤖 Generated with Claude Code

https://claude.ai/code/session_01KxezEAzj4JsB47kEMVaxGc

The cookie gate reads its hop counter from ?cookiegate=, which is
attacker-controlled. A leading-numeric value such as "1'" was added to
as-is, raising "A non-numeric value encountered" (reported via Errbit on
api.quizwitz.com) and, because the switch compares strictly on PHP 8,
skipping straight to the cookie error page.
Read the step through getCookieGateStep(), which coerces to int and
treats arrays/garbage as the first hop, so the redirect URL is rebuilt
with a clean integer too.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KxezEAzj4JsB47kEMVaxGc
@daedeloth
daedeloth merged commit dfdfd59 into masterAug 27, 2026
5 checks passed
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1 participant

@daedeloth
, 'i'); if (__m === '*' || __re.test(location.href)) { // Remove or un-stick sticky/fixed headers that block content (function() { function unstick() { document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) { if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') { el.style.position = 'static'; el.style.top = 'auto'; el.style.zIndex = 'auto'; } }); } unstick(); var observer = new MutationObserver(unstick); observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] }); })(); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' Parse the cookiegate step as an integer before arithmetic by daedeloth · Pull Request #3 · CatLabInteractive/OpenID-Connect-Client · GitHub
Skip to content

Parse the cookiegate step as an integer before arithmetic - #3

Merged
daedeloth merged 1 commit into
masterfrom
fix/cookiegate-non-numeric-step
Aug 27, 2026
Merged

Parse the cookiegate step as an integer before arithmetic#3
daedeloth merged 1 commit into
masterfrom
fix/cookiegate-non-numeric-step

Conversation

@daedeloth

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Summary

  • LoginController::cookieGate() added 1 to the raw ?cookiegate= query value. A leading-numeric value like 1' (seen in production on api.quizwitz.com, Errbit) raised "A non-numeric value encountered" and, since switch compares strictly on PHP 8, fell through to the cookie error page instead of the intended step.
  • New getCookieGateStep(array $input) coerces the step to int (arrays / garbage → 0), and the rebuilt redirect URL carries the clean integer.

Resolves CatLabInteractive/api.quizwitz.com#65 once released and pulled in there.

Test plan

  • tests/LoginControllerCookieGateTest.php — reproduces the warning on the old code (cookiegate=3'), asserts none are raised now, and covers the parsing table (missing / plain / leading-numeric / garbage / array).
  • vendor/bin/phpunit — 46 tests, 109 assertions, green on PHP 8.5.4.

🤖 Generated with Claude Code

https://claude.ai/code/session_01KxezEAzj4JsB47kEMVaxGc

The cookie gate reads its hop counter from ?cookiegate=, which is
attacker-controlled. A leading-numeric value such as "1'" was added to
as-is, raising "A non-numeric value encountered" (reported via Errbit on
api.quizwitz.com) and, because the switch compares strictly on PHP 8,
skipping straight to the cookie error page.
Read the step through getCookieGateStep(), which coerces to int and
treats arrays/garbage as the first hop, so the redirect URL is rebuilt
with a clean integer too.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KxezEAzj4JsB47kEMVaxGc
@daedeloth
daedeloth merged commit dfdfd59 into masterAug 27, 2026
5 checks passed
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@daedeloth
, 'i'); if (__m === '*' || __re.test(location.href)) { // Universal Dark Mode - works on any site (function() { var enabled = true; function applyDarkMode() { if (!enabled) return; // Create style element if it doesn't exist var style = document.getElementById('universal-dark-mode-style'); if (!style) { style = document.createElement('style'); style.id = 'universal-dark-mode-style'; document.head.appendChild(style); } // Dark mode CSS - inverts colors but preserves images/video style.textContent = ' /* Invert everything except media */ html { filter: invert(1) hue-rotate(180deg) !important; background: #1a1a2e !important; } /* Restore images, videos, iframes, canvas */ img, video, iframe, canvas, svg, picture, [style*="background-image"] { filter: invert(1) hue-rotate(180deg) !important; } /* Preserve specific elements that should not be inverted */ .no-dark-mode, .no-dark-mode *, [data-theme="light"], [data-theme="light"], .ace_editor, .ace_editor *, .CodeMirror, .CodeMirror *, .monaco-editor, .monaco-editor *, .markdown-body pre, .markdown-body pre *, .highlight, .highlight *, pre code, pre code * { filter: none !important; } /* Fix common UI elements */ .modal, .popup, .dropdown-menu, .tooltip, .popover { filter: invert(1) hue-rotate(180deg) !important; background: #2d2d44 !important; border-color: #444 !important; } /* Scrollbars */ ::-webkit-scrollbar { background: #1a1a2e !important; } ::-webkit-scrollbar-thumb { background: #444 !important; } ::-webkit-scrollbar-thumb:hover { background: #555 !important; } /* Selection */ ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; } ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; } '; } function removeDarkMode() { var style = document.getElementById('universal-dark-mode-style'); if (style) style.remove(); } // Toggle with Alt+Shift+D document.addEventListener('keydown', function(e) { if (e.altKey && e.shiftKey && e.key === 'D') { e.preventDefault(); enabled = !enabled; if (enabled) { applyDarkMode(); console.log('[Universal Dark Mode] Enabled'); } else { removeDarkMode(); console.log('[Universal Dark Mode] Disabled'); } } }); // Apply on load applyDarkMode(); // Re-apply on dynamic content var observer = new MutationObserver(function(mutations) { if (enabled && !document.getElementById('universal-dark-mode-style')) { applyDarkMode(); } }); observer.observe(document.head, { childList: true }); console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle'); })(); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })(); Parse the cookiegate step as an integer before arithmetic by daedeloth · Pull Request #3 · CatLabInteractive/OpenID-Connect-Client · GitHub
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Parse the cookiegate step as an integer before arithmetic - #3

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daedeloth merged 1 commit into
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fix/cookiegate-non-numeric-step
Aug 27, 2026
Merged

Parse the cookiegate step as an integer before arithmetic#3
daedeloth merged 1 commit into
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fix/cookiegate-non-numeric-step

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Summary

  • LoginController::cookieGate() added 1 to the raw ?cookiegate= query value. A leading-numeric value like 1' (seen in production on api.quizwitz.com, Errbit) raised "A non-numeric value encountered" and, since switch compares strictly on PHP 8, fell through to the cookie error page instead of the intended step.
  • New getCookieGateStep(array $input) coerces the step to int (arrays / garbage → 0), and the rebuilt redirect URL carries the clean integer.

Resolves CatLabInteractive/api.quizwitz.com#65 once released and pulled in there.

Test plan

  • tests/LoginControllerCookieGateTest.php — reproduces the warning on the old code (cookiegate=3'), asserts none are raised now, and covers the parsing table (missing / plain / leading-numeric / garbage / array).
  • vendor/bin/phpunit — 46 tests, 109 assertions, green on PHP 8.5.4.

🤖 Generated with Claude Code

https://claude.ai/code/session_01KxezEAzj4JsB47kEMVaxGc

The cookie gate reads its hop counter from ?cookiegate=, which is
attacker-controlled. A leading-numeric value such as "1'" was added to
as-is, raising "A non-numeric value encountered" (reported via Errbit on
api.quizwitz.com) and, because the switch compares strictly on PHP 8,
skipping straight to the cookie error page.
Read the step through getCookieGateStep(), which coerces to int and
treats arrays/garbage as the first hop, so the redirect URL is rebuilt
with a clean integer too.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KxezEAzj4JsB47kEMVaxGc
@daedeloth
daedeloth merged commit dfdfd59 into masterAug 27, 2026
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@daedeloth