shield/examples/browser-example.html at main · LLM-Dev-Ops/shield · GitHub

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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>LLM Shield Browser Example</title>
    <style>
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            max-width: 800px;
            margin: 50px auto;
            padding: 20px;
            background: #f5f5f5;
        }
        .container {
            background: white;
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }
        h1 {
            color: #333;
            margin-bottom: 10px;
        }
        .subtitle {
            color: #666;
            margin-bottom: 30px;
        }
        textarea {
            width: 100%;
            height: 150px;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-family: monospace;
            font-size: 14px;
            resize: vertical;
        }
        button {
            background: #007bff;
            color: white;
            border: none;
            padding: 12px 24px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 16px;
            margin-top: 10px;
        }
        button:hover {
            background: #0056b3;
        }
        button:disabled {
            background: #ccc;
            cursor: not-allowed;
        }
        .result {
            margin-top: 20px;
            padding: 15px;
            border-radius: 4px;
            display: none;
        }
        .result.valid {
            background: #d4edda;
            border: 1px solid #c3e6cb;
            color: #155724;
            display: block;
        }
        .result.invalid {
            background: #f8d7da;
            border: 1px solid #f5c6cb;
            color: #721c24;
            display: block;
        }
        .stats {
            margin-top: 20px;
            padding: 15px;
            background: #e7f3ff;
            border-radius: 4px;
            font-size: 14px;
        }
        .stats div {
            margin: 5px 0;
        }
        .badge {
            display: inline-block;
            padding: 4px 8px;
            border-radius: 3px;
            font-size: 12px;
            font-weight: bold;
            margin-left: 10px;
        }
        .badge.safe {
            background: #28a745;
            color: white;
        }
        .badge.warning {
            background: #ffc107;
            color: black;
        }
        .badge.danger {
            background: #dc3545;
            color: white;
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>🛡️ LLM Shield WASM Demo</h1>
        <p class="subtitle">Test the security scanners in your browser</p>

        <label for="input"><strong>Enter text to scan:</strong></label>
        <textarea id="input" placeholder="Type something here... Try words like 'spam', 'scam', 'badword'">This is a test message.</textarea>

        <button id="scanBtn" onclick="scanText()">Scan Text</button>

        <div id="result" class="result"></div>

        <div class="stats" id="stats" style="display: none;">
            <strong>Scan Statistics:</strong>
            <div>Scanner: <span id="scannerName"></span></div>
            <div>Risk Score: <span id="riskScore"></span></div>
            <div>Processing Time: <span id="processingTime"></span></div>
        </div>
    </div>

    <script type="module">
        // Import WASM module
        import init, { BanSubstringsScanner } from './pkg/llm_shield_wasm.js';

        let scanner;
        let startTime;

        // Initialize WASM module and create scanner
        async function initScanner() {
            await init();

            // Create scanner with example banned words
            scanner = new BanSubstringsScanner(
                ['spam', 'scam', 'badword', 'malicious', 'phishing'],
                false  // case_insensitive
            );

            console.log('✅ Scanner initialized:', scanner.name());
            document.getElementById('scanBtn').disabled = false;
        }

        // Scan text function
        window.scanText = async function() {
            const input = document.getElementById('input').value;
            const resultDiv = document.getElementById('result');
            const statsDiv = document.getElementById('stats');
            const scanBtn = document.getElementById('scanBtn');

            if (!input.trim()) {
                resultDiv.className = 'result invalid';
                resultDiv.textContent = '⚠️ Please enter some text to scan';
                resultDiv.style.display = 'block';
                return;
            }

            // Disable button during scan
            scanBtn.disabled = true;
            scanBtn.textContent = 'Scanning...';

            try {
                startTime = performance.now();

                // Perform scan
                const result = await scanner.scan(input);

                const endTime = performance.now();
                const duration = (endTime - startTime).toFixed(2);

                // Display result
                if (result.is_valid) {
                    resultDiv.className = 'result valid';
                    resultDiv.innerHTML = `
                        ✅ <strong>Text is SAFE</strong>
                        <span class="badge safe">PASSED</span>
                        <br><br>
                        No security issues detected.
                    `;
                } else {
                    resultDiv.className = 'result invalid';
                    resultDiv.innerHTML = `
                        ❌ <strong>Text is BLOCKED</strong>
                        <span class="badge danger">FAILED</span>
                        <br><br>
                        Security scanner detected potential issues.
                        <br>
                        <strong>Sanitized:</strong> ${result.sanitized_text || 'N/A'}
                    `;
                }

                // Display stats
                document.getElementById('scannerName').textContent = scanner.name();
                document.getElementById('riskScore').innerHTML = `
                    ${result.risk_score.toFixed(2)}
                    <span class="badge ${getRiskBadge(result.risk_score)}">${getRiskLevel(result.risk_score)}</span>
                `;
                document.getElementById('processingTime').textContent = `${duration}ms`;
                statsDiv.style.display = 'block';

            } catch (error) {
                resultDiv.className = 'result invalid';
                resultDiv.textContent = `❌ Error: ${error.message}`;
                resultDiv.style.display = 'block';
            } finally {
                scanBtn.disabled = false;
                scanBtn.textContent = 'Scan Text';
            }
        }

        function getRiskLevel(score) {
            if (score >= 0.9) return 'CRITICAL';
            if (score >= 0.7) return 'HIGH';
            if (score >= 0.4) return 'MEDIUM';
            if (score > 0) return 'LOW';
            return 'NONE';
        }

        function getRiskBadge(score) {
            if (score >= 0.7) return 'danger';
            if (score >= 0.4) return 'warning';
            return 'safe';
        }

        // Initialize on page load
        initScanner().catch(err => {
            console.error('Failed to initialize scanner:', err);
            document.getElementById('result').className = 'result invalid';
            document.getElementById('result').textContent = '❌ Failed to load WASM module: ' + err.message;
            document.getElementById('result').style.display = 'block';
        });
    </script>
</body>
</html>