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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Security Features - YakaJS Demos</title>
<!-- Tailwind CSS -->
<script src="https://cdn.tailwindcss.com"></script>
<!-- YakaJS -->
<script src="https://cdn.jsdelivr.net/gh/Yaka-UI-Labs/YakaJS@latest/dist/min.yaka.js"></script>
<style>
/* Raw Black with Noise & Gradient Design */
/* Outfit Font */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');
* {
font-family: 'Outfit', system-ui, sans-serif;
}
/* Raw Black Background with Noise and Gradient */
body {
background:
/* Subtle gradient overlay */
linear-gradient(135deg,
rgba(99, 102, 241, 0.05) 0%,
rgba(139, 92, 246, 0.03) 25%,
rgba(168, 85, 247, 0.05) 50%,
rgba(217, 70, 239, 0.03) 75%,
rgba(99, 102, 241, 0.05) 100%
),
/* Noise texture using SVG pattern */
url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.05'/%3E%3C/svg%3E"),
/* Base black */
#000000;
background-size: 400% 400%, 200px 200px, auto;
background-attachment: fixed, fixed, fixed;
animation: gradientShift 20s ease infinite;
min-height: 100vh;
font-family: 'Outfit', sans-serif;
}
@keyframes gradientShift {
0% { background-position: 0% 50%, 0 0, 0 0; }
50% { background-position: 100% 50%, 100px 100px, 0 0; }
100% { background-position: 0% 50%, 0 0, 0 0; }
}
/* Glassmorphism on Black */
.glass {
background: rgba(255, 255, 255, 0.03);
backdrop-filter: blur(16px);
-webkit-backdrop-filter: blur(16px);
border: 1px solid rgba(255, 255, 255, 0.08);
box-shadow:
0 8px 32px 0 rgba(0, 0, 0, 0.6),
inset 0 1px 0 0 rgba(255, 255, 255, 0.05);
}
.glass-dark {
background: rgba(255, 255, 255, 0.02);
backdrop-filter: blur(20px);
-webkit-backdrop-filter: blur(20px);
border: 1px solid rgba(255, 255, 255, 0.06);
box-shadow:
0 4px 24px 0 rgba(0, 0, 0, 0.8),
inset 0 1px 0 0 rgba(255, 255, 255, 0.03);
}
.glass-card {
background: rgba(255, 255, 255, 0.04);
backdrop-filter: blur(24px);
-webkit-backdrop-filter: blur(24px);
border: 1px solid rgba(255, 255, 255, 0.1);
box-shadow:
0 8px 32px 0 rgba(0, 0, 0, 0.7),
inset 0 1px 0 0 rgba(255, 255, 255, 0.06);
}
/* Smooth transitions */
.transition-glass {
transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.glass-card:hover {
background: rgba(255, 255, 255, 0.08);
transform: translateY(-4px) scale(1.01);
border-color: rgba(139, 92, 246, 0.3);
box-shadow:
0 16px 48px 0 rgba(139, 92, 246, 0.2),
0 0 80px 0 rgba(139, 92, 246, 0.1),
inset 0 1px 0 0 rgba(255, 255, 255, 0.1);
}
/* Code blocks on black */
pre {
background: rgba(255, 255, 255, 0.02);
backdrop-filter: blur(10px);
border-radius: 12px;
padding: 1rem;
overflow-x: auto;
border: 1px solid rgba(99, 102, 241, 0.2);
box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.5);
}
code {
color: #a78bfa;
font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
}
.demo-result {
background: rgba(255, 255, 255, 0.02);
backdrop-filter: blur(8px);
border-radius: 8px;
padding: 1rem;
min-height: 100px;
}
.danger-box {
background: rgba(239, 68, 68, 0.1);
border: 2px solid rgba(239, 68, 68, 0.4);
border-radius: 8px;
padding: 1rem;
}
.safe-box {
background: rgba(34, 197, 94, 0.1);
border: 2px solid rgba(34, 197, 94, 0.4);
border-radius: 8px;
padding: 1rem;
}
.warning-box {
background: rgba(251, 191, 36, 0.1);
border: 2px solid rgba(251, 191, 36, 0.4);
border-radius: 8px;
padding: 1rem;
}
</style>
</head>
<body class="p-8">
<div class="max-w-7xl mx-auto">
<!-- Header -->
<div class="glass-card rounded-2xl p-8 mb-8 transition-glass">
<h1 class="text-5xl font-bold text-white mb-4">🛡️ Security Features</h1>
<p class="text-white text-lg mb-4">XSS Protection, Input Sanitization, CSRF Protection, and more</p>
<a href="index.html" class="text-white hover:text-yellow-300 transition-colors">← Back to Demos</a>
</div>
<!-- XSS Protection -->
<div class="glass-card rounded-2xl p-8 mb-8 transition-glass">
<h2 class="text-3xl font-bold text-white mb-4">🚫 XSS Protection</h2>
<p class="text-white mb-4">HTML sanitization prevents script injection attacks</p>
<pre><code>// Escape HTML to prevent XSS
const safe = _.escapeHtml(userInput);
// Or use _.sanitize() for more control</code></pre>
<div class="demo-result mt-4">
<label class="text-white block mb-2">Try to inject a script:</label>
<textarea id="xssInput" rows="3" placeholder="<script>alert('XSS')</script>"
class="glass w-full px-4 py-2 rounded-lg text-white placeholder-white/50 focus:outline-none focus:ring-2 focus:ring-white/50 mb-4"></textarea>
<div class="grid grid-cols-2 gap-4 mb-4">
<div>
<div class="text-red-300 font-bold mb-2">❌ UNSAFE (Raw HTML):</div>
<div class="danger-box">
<div id="unsafeOutput" class="text-white text-sm break-words"></div>
</div>
</div>
<div>
<div class="text-green-300 font-bold mb-2">✓ SAFE (Escaped):</div>
<div class="safe-box">
<div id="safeOutput" class="text-white text-sm break-words"></div>
</div>
</div>
</div>
<button onclick="testXSS()" class="glass px-6 py-3 rounded-lg text-white font-semibold hover:bg-white/20 transition">
Test XSS Protection
</button>
</div>
</div>
<!-- HTML Sanitization -->
<div class="glass-card rounded-2xl p-8 mb-8 transition-glass">
<h2 class="text-3xl font-bold text-white mb-4">🧼 HTML Sanitization</h2>
<p class="text-white mb-4">Remove dangerous HTML while preserving safe content</p>
<div class="demo-result mt-4">
<label class="text-white block mb-2">HTML Input:</label>
<textarea id="htmlInput" rows="4"
placeholder="<p>Hello <b>World</b></p><script>alert('evil')</script>"
class="glass w-full px-4 py-2 rounded-lg text-white placeholder-white/50 focus:outline-none focus:ring-2 focus:ring-white/50 mb-4"></textarea>
<button onclick="sanitizeHTML()" class="glass px-6 py-3 rounded-lg text-white font-semibold hover:bg-white/20 transition mb-4">
Sanitize HTML
</button>
<div class="grid grid-cols-2 gap-4">
<div>
<div class="text-white font-bold mb-2">Original:</div>
<div class="warning-box">
<code id="originalHTML" class="text-sm break-words"></code>
</div>
</div>
<div>
<div class="text-green-300 font-bold mb-2">Sanitized:</div>
<div class="safe-box">
<code id="sanitizedHTML" class="text-sm break-words"></code>
</div>
</div>
</div>
</div>
</div>
<!-- URL Sanitization -->
<div class="glass-card rounded-2xl p-8 mb-8 transition-glass">
<h2 class="text-3xl font-bold text-white mb-4">🔗 URL Sanitization</h2>
<p class="text-white mb-4">Validate and sanitize URLs to prevent javascript: and data: schemes</p>
<div class="demo-result mt-4">
<label class="text-white block mb-2">Test URLs:</label>
<div class="space-y-2 mb-4">
<button onclick="testURL('https://example.com')"
class="glass px-4 py-2 rounded-lg text-white hover:bg-white/20 transition w-full text-left">
https://example.com
</button>
<button onclick="testURL('javascript:alert(1)')"
class="glass px-4 py-2 rounded-lg text-white hover:bg-white/20 transition w-full text-left">
javascript:alert(1)
</button>
<button onclick="testURL('data:text/html,<script>alert(1)</script>')"
class="glass px-4 py-2 rounded-lg text-white hover:bg-white/20 transition w-full text-left">
data:text/html,<script>alert(1)</script>
</button>
<button onclick="testURL('http://malicious.com@example.com')"
class="glass px-4 py-2 rounded-lg text-white hover:bg-white/20 transition w-full text-left">
http://malicious.com@example.com
</button>
</div>
<div id="urlResult" class="hidden mb-4"></div>
<label class="text-white block mb-2">Custom URL:</label>
<input type="text" id="customURL" placeholder="Enter a URL to test"
class="glass w-full px-4 py-2 rounded-lg text-white placeholder-white/50 focus:outline-none focus:ring-2 focus:ring-white/50 mb-2">
<button onclick="testURL(document.getElementById('customURL').value)"
class="glass px-6 py-3 rounded-lg text-white font-semibold hover:bg-white/20 transition">
Test Custom URL
</button>
</div>
</div>
<!-- Input Sanitization -->
<div class="glass-card rounded-2xl p-8 mb-8 transition-glass">
<h2 class="text-3xl font-bold text-white mb-4">✂️ Input Sanitization</h2>
<p class="text-white mb-4">Clean user input based on allowed characters</p>
<div class="demo-result mt-4">
<div class="grid grid-cols-2 gap-4 mb-4">
<div>
<label class="text-white block mb-2">Alphanumeric Only:</label>
<input type="text" id="alphaInput" placeholder="Try special characters..."
class="glass w-full px-4 py-2 rounded-lg text-white placeholder-white/50 focus:outline-none focus:ring-2 focus:ring-white/50">
<div id="alphaOutput" class="safe-box mt-2 text-white text-sm min-h-[40px]"></div>
</div>
<div>
<label class="text-white block mb-2">Numeric Only:</label>
<input type="text" id="numericInput" placeholder="Try letters..."
class="glass w-full px-4 py-2 rounded-lg text-white placeholder-white/50 focus:outline-none focus:ring-2 focus:ring-white/50">
<div id="numericOutput" class="safe-box mt-2 text-white text-sm min-h-[40px]"></div>
</div>
</div>
<div>
<label class="text-white block mb-2">Email Format:</label>
<input type="text" id="emailInput" placeholder="Enter email..."
class="glass w-full px-4 py-2 rounded-lg text-white placeholder-white/50 focus:outline-none focus:ring-2 focus:ring-white/50">
<div id="emailOutput" class="mt-2 text-white text-sm min-h-[40px]"></div>
</div>
</div>
</div>
<!-- CSRF Protection -->
<div class="glass-card rounded-2xl p-8 mb-8 transition-glass">
<h2 class="text-3xl font-bold text-white mb-4">🎫 CSRF Token Protection</h2>
<p class="text-white mb-4">Generate and validate CSRF tokens for secure form submissions</p>
<pre><code>// Generate CSRF token
const token = _.csrf.generate();
// Validate token
const valid = _.csrf.validate(token);</code></pre>
<div class="demo-result mt-4">
<button onclick="generateCSRF()" class="glass px-6 py-3 rounded-lg text-white font-semibold hover:bg-white/20 transition mb-4">
Generate CSRF Token
</button>
<div id="csrfToken" class="safe-box mb-4 hidden">
<div class="text-white font-bold mb-2">Token:</div>
<code id="tokenValue" class="text-yellow-300 text-sm break-all"></code>
</div>
<div class="mb-4">
<label class="text-white block mb-2">Validate Token:</label>
<input type="text" id="validateToken" placeholder="Paste token to validate"
class="glass w-full px-4 py-2 rounded-lg text-white placeholder-white/50 focus:outline-none focus:ring-2 focus:ring-white/50">
</div>
<button onclick="validateCSRF()" class="glass px-6 py-3 rounded-lg text-white font-semibold hover:bg-white/20 transition">
Validate Token
</button>
<div id="csrfResult" class="mt-4 hidden"></div>
</div>
</div>
<!-- CSP Nonce -->
<div class="glass-card rounded-2xl p-8 mb-8 transition-glass">
<h2 class="text-3xl font-bold text-white mb-4">🔐 CSP Nonce Support</h2>
<p class="text-white mb-4">Content Security Policy nonces for inline scripts</p>
<pre><code>// Generate nonce for CSP
const nonce = _.security.generateNonce();
// Use in script tag: <script nonce="${nonce}"></code></pre>
<div class="demo-result mt-4">
<button onclick="generateNonce()" class="glass px-6 py-3 rounded-lg text-white font-semibold hover:bg-white/20 transition mb-4">
Generate Nonce
</button>
<div id="nonceResult" class="safe-box hidden">
<div class="text-white font-bold mb-2">Nonce:</div>
<code id="nonceValue" class="text-yellow-300 text-sm break-all"></code>
<div class="text-white text-sm mt-4">
Use in HTML: <code class="text-yellow-300"><script nonce="[value]"></code>
</div>
<div class="text-white text-sm mt-2">
CSP Header: <code class="text-yellow-300">script-src 'nonce-[value]';</code>
</div>
</div>
</div>
</div>
<!-- Secure Form -->
<div class="glass-card rounded-2xl p-8 mb-8 transition-glass">
<h2 class="text-3xl font-bold text-white mb-4">📋 Secure Form Submission</h2>
<p class="text-white mb-4">Complete form with XSS protection and CSRF token</p>
<div class="demo-result mt-4">
<form id="secureForm" onsubmit="submitSecureForm(event)">
<input type="hidden" id="formCSRF" name="csrf_token">
<div class="mb-4">
<label class="text-white block mb-2">Name:</label>
<input type="text" id="formName" required
class="glass w-full px-4 py-2 rounded-lg text-white placeholder-white/50 focus:outline-none focus:ring-2 focus:ring-white/50">
</div>
<div class="mb-4">
<label class="text-white block mb-2">Email:</label>
<input type="email" id="formEmail" required
class="glass w-full px-4 py-2 rounded-lg text-white placeholder-white/50 focus:outline-none focus:ring-2 focus:ring-white/50">
</div>
<div class="mb-4">
<label class="text-white block mb-2">Comment:</label>
<textarea id="formComment" rows="3" required
class="glass w-full px-4 py-2 rounded-lg text-white placeholder-white/50 focus:outline-none focus:ring-2 focus:ring-white/50"></textarea>
</div>
<button type="submit" class="glass px-6 py-3 rounded-lg text-white font-semibold hover:bg-white/20 transition">
Submit Securely
</button>
</form>
<div id="formResult" class="mt-4 hidden"></div>
</div>
</div>
<!-- Security Comparison -->
<div class="glass-card rounded-2xl p-8 transition-glass">
<h2 class="text-3xl font-bold text-white mb-4">⚖️ Security Comparison</h2>
<p class="text-white mb-4">Side-by-side comparison of dangerous vs safe practices</p>
<div class="demo-result mt-4">
<div class="grid grid-cols-2 gap-4">
<div>
<div class="text-red-300 font-bold mb-4 text-xl">❌ Dangerous</div>
<div class="danger-box mb-4">
<div class="text-white font-semibold mb-2">innerHTML with user input:</div>
<code class="text-red-200 text-sm">
element.innerHTML = userInput;
</code>
</div>
<div class="danger-box mb-4">
<div class="text-white font-semibold mb-2">No URL validation:</div>
<code class="text-red-200 text-sm">
link.href = userURL;
</code>
</div>
<div class="danger-box mb-4">
<div class="text-white font-semibold mb-2">No CSRF protection:</div>
<code class="text-red-200 text-sm">
<form action="/submit">
</code>
</div>
<div class="danger-box">
<div class="text-white font-semibold mb-2">eval() user input:</div>
<code class="text-red-200 text-sm">
eval(userCode);
</code>
</div>
</div>
<div>
<div class="text-green-300 font-bold mb-4 text-xl">✓ Safe</div>
<div class="safe-box mb-4">
<div class="text-white font-semibold mb-2">Escape HTML:</div>
<code class="text-green-200 text-sm">
element.textContent = userInput;<br>
// or _.escapeHtml(userInput)
</code>
</div>
<div class="safe-box mb-4">
<div class="text-white font-semibold mb-2">Validate URLs:</div>
<code class="text-green-200 text-sm">
const safe = _.sanitizeURL(userURL);<br>
link.href = safe;
</code>
</div>
<div class="safe-box mb-4">
<div class="text-white font-semibold mb-2">CSRF token:</div>
<code class="text-green-200 text-sm">
<input name="csrf" value="${token}">
</code>
</div>
<div class="safe-box">
<div class="text-white font-semibold mb-2">Never use eval():</div>
<code class="text-green-200 text-sm">
// Use Function constructor<br>
// or better: avoid dynamic code
</code>
</div>
</div>
</div>
</div>
</div>
</div>
<script>
// Check if YakaJS is available
if (typeof _ === 'undefined') {
document.body.innerHTML = '<div class="glass-card rounded-2xl p-8 m-8"><h1 class="text-white text-2xl">YakaJS not loaded. Please build the project first: npm run build</h1></div>';
} else {
// Store tokens
let currentCSRFToken = null;
// XSS Protection Demo
const xssInput = document.getElementById('xssInput');
if (xssInput) {
xssInput.value = '<script>alert("XSS Attack!")</script>';
}
window.testXSS = function() {
const input = document.getElementById('xssInput').value;
const unsafeOutput = document.getElementById('unsafeOutput');
const safeOutput = document.getElementById('safeOutput');
if (unsafeOutput) {
unsafeOutput.textContent = `Raw: ${input}`;
}
if (safeOutput && _.escapeHtml) {
const escaped = _.escapeHtml(input);
safeOutput.textContent = escaped;
} else if (safeOutput) {
const escaped = input
.replace(/&/g, '&')
.replace(/</g, '<')
.replace(/>/g, '>')
.replace(/"/g, '"')
.replace(/'/g, ''');
safeOutput.textContent = escaped;
}
};
// HTML Sanitization
window.sanitizeHTML = function() {
const input = document.getElementById('htmlInput').value;
const originalHTML = document.getElementById('originalHTML');
const sanitizedHTML = document.getElementById('sanitizedHTML');
if (originalHTML) {
originalHTML.textContent = input;
}
if (sanitizedHTML && _.sanitize) {
const safe = _.sanitize(input);
sanitizedHTML.textContent = safe;
} else if (sanitizedHTML) {
// Fallback sanitization
const safe = input.replace(/<script\b[^<]*(?:(?!<\/script>)<[^<]*)*<\/script>/gi, '');
sanitizedHTML.textContent = safe;
}
};
// URL Sanitization
window.testURL = function(url) {
const result = document.getElementById('urlResult');
if (!result) return;
result.classList.remove('hidden');
const isSafe = url.match(/^https?:\/\//) && !url.includes('@');
if (isSafe) {
result.className = 'safe-box mb-4';
result.innerHTML = `
<div class="text-green-300 font-bold mb-2">✓ Safe URL</div>
<div class="text-white text-sm break-all">${url}</div>
`;
} else {
result.className = 'danger-box mb-4';
result.innerHTML = `
<div class="text-red-300 font-bold mb-2">❌ Dangerous URL Blocked</div>
<div class="text-white text-sm break-all">${url}</div>
<div class="text-white/70 text-sm mt-2">
Reason: ${!url.match(/^https?:\/\//) ? 'Invalid protocol' : 'Contains @ (possible phishing)'}
</div>
`;
}
};
// Input Sanitization
const alphaInput = document.getElementById('alphaInput');
const alphaOutput = document.getElementById('alphaOutput');
if (alphaInput && alphaOutput) {
alphaInput.addEventListener('input', (e) => {
const sanitized = e.target.value.replace(/[^a-zA-Z0-9]/g, '');
alphaOutput.textContent = `Sanitized: ${sanitized}`;
});
}
const numericInput = document.getElementById('numericInput');
const numericOutput = document.getElementById('numericOutput');
if (numericInput && numericOutput) {
numericInput.addEventListener('input', (e) => {
const sanitized = e.target.value.replace(/[^0-9]/g, '');
numericOutput.textContent = `Sanitized: ${sanitized}`;
});
}
const emailInput = document.getElementById('emailInput');
const emailOutput = document.getElementById('emailOutput');
if (emailInput && emailOutput) {
emailInput.addEventListener('input', (e) => {
const email = e.target.value;
const isValid = /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email);
if (email.length === 0) {
emailOutput.textContent = '';
} else if (isValid) {
emailOutput.className = 'safe-box mt-2 text-white text-sm min-h-[40px]';
emailOutput.textContent = `✓ Valid email format`;
} else {
emailOutput.className = 'danger-box mt-2 text-white text-sm min-h-[40px]';
emailOutput.textContent = `✗ Invalid email format`;
}
});
}
// CSRF Token
window.generateCSRF = function() {
currentCSRFToken = generateRandomToken();
const tokenDiv = document.getElementById('csrfToken');
const tokenValue = document.getElementById('tokenValue');
if (tokenDiv && tokenValue) {
tokenDiv.classList.remove('hidden');
tokenValue.textContent = currentCSRFToken;
}
// Auto-fill form token
const formCSRF = document.getElementById('formCSRF');
if (formCSRF) {
formCSRF.value = currentCSRFToken;
}
};
window.validateCSRF = function() {
const inputToken = document.getElementById('validateToken').value;
const resultDiv = document.getElementById('csrfResult');
if (!resultDiv) return;
resultDiv.classList.remove('hidden');
if (inputToken === currentCSRFToken) {
resultDiv.className = 'safe-box mt-4';
resultDiv.innerHTML = '<div class="text-green-300 font-bold">✓ Valid CSRF Token</div>';
} else {
resultDiv.className = 'danger-box mt-4';
resultDiv.innerHTML = '<div class="text-red-300 font-bold">❌ Invalid CSRF Token</div>';
}
};
// CSP Nonce
window.generateNonce = function() {
const nonce = generateRandomToken(32);
const resultDiv = document.getElementById('nonceResult');
const nonceValue = document.getElementById('nonceValue');
if (resultDiv && nonceValue) {
resultDiv.classList.remove('hidden');
nonceValue.textContent = nonce;
}
};
// Secure Form
window.submitSecureForm = function(event) {
event.preventDefault();
const name = document.getElementById('formName').value;
const email = document.getElementById('formEmail').value;
const comment = document.getElementById('formComment').value;
const csrf = document.getElementById('formCSRF').value;
// Validate CSRF
if (csrf !== currentCSRFToken) {
const resultDiv = document.getElementById('formResult');
if (resultDiv) {
resultDiv.classList.remove('hidden');
resultDiv.className = 'danger-box mt-4';
resultDiv.innerHTML = '<div class="text-red-300 font-bold">❌ CSRF Token Invalid - Submission Blocked</div>';
}
return;
}
// Sanitize inputs
const safeName = name.replace(/[<>]/g, '');
const safeComment = comment.replace(/[<>]/g, '');
const resultDiv = document.getElementById('formResult');
if (resultDiv) {
resultDiv.classList.remove('hidden');
resultDiv.className = 'safe-box mt-4';
resultDiv.innerHTML = `
<div class="text-green-300 font-bold mb-2">✓ Form Submitted Securely</div>
<div class="text-white text-sm">
<div><strong>Name:</strong> ${safeName}</div>
<div><strong>Email:</strong> ${email}</div>
<div><strong>Comment:</strong> ${safeComment}</div>
<div class="mt-2 text-white/70">All inputs sanitized and CSRF token validated</div>
</div>
`;
}
};
// Helper: Generate random token
function generateRandomToken(length = 64) {
const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
let token = '';
for (let i = 0; i < length; i++) {
token += chars.charAt(Math.floor(Math.random() * chars.length));
}
return token;
}
// Initialize form with CSRF token
generateCSRF();
}
</script>
</body>
</html>