esp32-cam-ai/browser_controller.html at main · rzeldent/esp32-cam-ai · GitHub

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<!DOCTYPE html>
<html>
<head>
    <title>ESP32-CAM Browser Controller</title>
    <style>
        body { font-family: Arial, sans-serif; margin: 20px; background-color: #f9f9f9; }
        .container { max-width: 800px; margin: 0 auto; background: white; padding: 20px; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); }
        .controls { margin: 20px 0; }
        button { margin: 5px; padding: 10px 20px; font-size: 16px; border: none; border-radius: 4px; cursor: pointer; background: #007bff; color: white; }
        button:hover { background: #0056b3; }
        button:disabled { background: #ccc; cursor: not-allowed; }
        .status { margin: 10px 0; padding: 10px; background: #f0f0f0; border-radius: 5px; }
        .image-container { margin: 20px 0; text-align: center; }
        .image-container img { max-width: 100%; border: 1px solid #ccc; border-radius: 4px; }
        .error { color: red; background: #ffe6e6; border-left: 4px solid red; }
        .success { color: green; background: #e6ffe6; border-left: 4px solid green; }
        .response { font-family: monospace; background: #f8f8f8; padding: 10px; margin: 10px 0; border-radius: 5px; max-height: 300px; overflow-y: auto; border: 1px solid #ddd; }
        .hidden { display: none; }
        .visible { display: block; }
        .url-input { width: 300px; padding: 8px; margin: 5px; border: 1px solid #ddd; border-radius: 4px; }
        .control-group { margin: 15px 0; padding: 15px; background: #f8f9fa; border-radius: 4px; }
        .control-group h3 { margin-top: 0; color: #333; }
    </style>
</head>
<body>
    <div class="container">
        <h1>ESP32-CAM Browser Controller</h1>
        <p>This page demonstrates direct browser access to the ESP32-CAM MCP server using CORS headers.</p>

        <div class="control-group">
            <h3>Connection Settings</h3>
            <label for="esp32-url">ESP32-CAM URL:</label>
            <input type="text" id="esp32-url" value="http://esp32-7c9ebdf16a10.local" class="url-input">
            <button onclick="testConnection()">Test Connection</button>
        </div>

        <div class="control-group">
            <h3>MCP Protocol</h3>
            <button onclick="initialize()">Initialize MCP</button>
            <button onclick="listTools()">List Tools</button>
        </div>

        <div class="control-group">
            <h3>System Information</h3>
            <button onclick="getStatus()">System Status</button>
            <button onclick="getWiFiStatus()">WiFi Status</button>
        </div>

        <div class="control-group">
            <h3>Camera Controls</h3>
            <button onclick="ledOn()">LED On</button>
            <button onclick="ledOff()">LED Off</button>
            <button onclick="flashCamera()">Flash Camera</button>
            <button onclick="captureImage('off')">Capture Image (No Flash)</button>
            <button onclick="captureImage('on')">Capture Image (With Flash)</button>
        </div>

        <div id="status" class="status">Ready to connect...</div>

        <div class="control-group">
            <h3>Response Data</h3>
            <button onclick="clearResponse()">Clear Response</button>
        </div>

        <div id="response" class="response hidden"></div>

        <div id="image-container" class="image-container hidden">
            <h3>Captured Image:</h3>
            <img id="captured-image" alt="Captured from ESP32-CAM">
        </div>
    </div>

    <script>
        let requestId = 1;

        function getESP32URL() {
            const url = document.getElementById('esp32-url').value.trim();
            if (!url) {
                updateStatus('Please enter a valid ESP32-CAM URL', true);
                return null;
            }
            // Ensure URL starts with http:// or https://
            if (!url.startsWith('http://') && !url.startsWith('https://')) {
                return 'http://' + url;
            }
            return url;
        }

        function updateStatus(message, isError = false) {
            const statusDiv = document.getElementById('status');
            statusDiv.textContent = message;
            statusDiv.className = isError ? 'status error' : 'status success';

            // Auto-clear success messages after 5 seconds
            if (!isError) {
                setTimeout(() => {
                    if (statusDiv.textContent === message) {
                        statusDiv.textContent = 'Ready...';
                        statusDiv.className = 'status';
                    }
                }, 5000);
            }
        }

        function showResponse(response) {
            const responseDiv = document.getElementById('response');
            responseDiv.textContent = JSON.stringify(response, null, 2);
            responseDiv.className = 'response visible';
        }

        function clearResponse() {
            const responseDiv = document.getElementById('response');
            responseDiv.textContent = '';
            responseDiv.className = 'response hidden';
            updateStatus('Response cleared');
        }

        async function testConnection() {
            const url = getESP32URL();
            if (!url) {
                return;
            }

            try {
                updateStatus('Testing connection...');
                const response = await fetch(url, {
                    method: 'OPTIONS',
                    headers: {
                        'Origin': window.location.origin
                    }
                });

                if (response.ok) {
                    updateStatus(`Connection successful! ESP32-CAM is reachable at ${url}`);
                } else {
                    updateStatus(`Connection test failed: HTTP ${response.status}`, true);
                }
            } catch (error) {
                updateStatus(`Connection test failed: ${error.message}`, true);
            }
        }

        async function sendMCPRequest(method, params = null) {
            const url = getESP32URL();
            if (!url) {
                return null;
            }

            const payload = {
                jsonrpc: "2024-11-05",
                id: requestId++,
                method: method
            };

            if (params) {
                payload.params = params;
            }

            try {
                updateStatus(`Sending ${method} request...`);

                const response = await fetch(url, {
                    method: 'POST',
                    headers: {
                        'Content-Type': 'application/json',
                    },
                    body: JSON.stringify(payload)
                });

                if (!response.ok) {
                    throw new Error(`HTTP ${response.status}: ${response.statusText}`);
                }

                const data = await response.json();
                showResponse(data);

                if (data.error) {
                    updateStatus(`Error: ${data.error.message}`, true);
                    return null;
                } else {
                    updateStatus(`${method} completed successfully`);
                    return data.result;
                }
            } catch (error) {
                let errorMessage = error.message;
                if (error.name === 'TypeError' && error.message.includes('fetch')) {
                    errorMessage = `Connection failed - check if ESP32-CAM is online and URL is correct`;
                }
                updateStatus(`Request failed: ${errorMessage}`, true);
                console.error('Request error:', error);
                return null;
            }
        }

        async function initialize() {
            const result = await sendMCPRequest('initialize', {
                protocolVersion: "2024-11-05",
                capabilities: {},
                clientInfo: {
                    name: "Browser MCP Client",
                    version: "1.0.0"
                }
            });

            if (result) {
                updateStatus(`Connected to ${result.serverInfo?.name || 'ESP32-CAM'}`);
            }
        }

        async function listTools() {
            const result = await sendMCPRequest('tools/list');
            if (result) {
                updateStatus(`Found ${result.tools?.length || 0} available tools`);
            }
        }

        async function ledOn() {
            const result = await sendMCPRequest('tools/call', {
                name: 'led',
                arguments: { state: 'on' }
            });
            if (result) {
                updateStatus('LED turned on');
            }
        }

        async function ledOff() {
            const result = await sendMCPRequest('tools/call', {
                name: 'led',
                arguments: { state: 'off' }
            });
            if (result) {
                updateStatus('LED turned off');
            }
        }

        async function flashCamera() {
            const result = await sendMCPRequest('tools/call', {
                name: 'flash',
                arguments: {}
            });
            if (result) {
                updateStatus('Flash executed');
            }
        }

        async function getStatus() {
            await sendMCPRequest('tools/call', {
                name: 'system_status',
                arguments: {}
            });
        }

        async function getWiFiStatus() {
            await sendMCPRequest('tools/call', {
                name: 'wifi_status',
                arguments: {}
            });
        }

        async function captureImage(flash = 'off') {
            const result = await sendMCPRequest('tools/call', {
                name: 'capture',
                arguments: { flash: flash }
            });

            if (result && result.content && result.content.length > 0) {
                // Look for the image content in the response
                let imageContent = null;
                let textContent = null;

                for (let i = 0; i < result.content.length; i++) {
                    const content = result.content[i];
                    if (content.type === 'image') {
                        imageContent = content;
                    } else if (content.type === 'text') {
                        textContent = content;
                    }
                }

                if (imageContent && imageContent.data) {
                    const img = document.getElementById('captured-image');
                    img.src = `data:${imageContent.mimeType || 'image/jpeg'};base64,${imageContent.data}`;
                    document.getElementById('image-container').className = 'image-container visible';

                    const statusMsg = textContent ? textContent.text : `Image captured (${imageContent.data.length} bytes base64)`;
                    updateStatus(statusMsg);
                } else {
                    updateStatus('Image capture succeeded but no image data found in response', true);
                }
            } else {
                updateStatus('Image capture failed or returned empty response', true);
            }
        }

        // Test CORS support on page load
        window.addEventListener('load', function() {
            updateStatus('Page loaded. CORS headers enable direct browser access to ESP32-CAM.');
        });
    </script>
</body>
</html>