{"name":"REtW Week 5","description":"Embark on an exciting journey to explore the secrets of networking! Join Netty the Explorer and her friends as they learn how computers communicate over the internet in a fun and interactive way.","photo":null,"view_count":4,"fork_count":0,"expires_at":null,"created_at":"2024-05-23T23:10:36.832368Z","updated_at":"2024-05-23T23:10:36.832371Z","user_id":2,"status":"PUBLIC","parent_id":1494,"id":1547,"user":{"photo":null,"email":null,"recess_id":"a75a82d5-5ae6-41b7-d20f-788415be036d","created_at":"2023-12-11T22:13:50.357940Z","reset_token":null,"stripe_customer_id":null,"seats":null,"username":"gamerc0der","id":2,"password_hash":null,"updated_at":"2023-12-11T22:13:50.357943Z","reset_token_expiry":null,"subscription_status":null},"code":{"script.js":"// Define the base URL for the Flask server\nconst REtWNetworkUrl = 'https://f827abac-23d5-44c0-b759-04a3093dccd2-00-17q7hobxm3343.kirk.replit.dev';\n\n// Authentication\ndocument.getElementById('authButton').addEventListener('click', () => {\n const password = document.getElementById('passwordInput').value;\n fetch(`${REtWNetworkUrl}/authenticate`, {\n method: 'POST',\n headers: {\n 'Content-Type': 'application/json'\n },\n body: JSON.stringify({ password })\n })\n .then(response => response.json())\n .then(data => {\n if (data.type === 'authenticated') {\n document.getElementById('authSection').style.display = 'block';\n } else {\n alert(data.message);\n }\n })\n .catch(error => {\n console.error('Error:', error);\n alert(\"Can't connect to the server. Boo hoo.\");\n });\n});\n\n// Connect button\ndocument.getElementById('connectButton').addEventListener('click', () => {\n const userId = document.getElementById('userIdInput').value;\n fetch(`${REtWNetworkUrl}/register`, {\n method: 'POST',\n headers: {\n 'Content-Type': 'application/json'\n },\n body: JSON.stringify({ userId })\n })\n .then(response => response.json())\n .then(data => {\n if (data.type === 'registered') {\n alert(\"You are successfully registered!\");\n startEventSource(userId);\n }\n })\n .catch(error => {\n console.error('Error:', error);\n alert(\"Can't connect to the server. Boo hoo.\");\n });\n});\n\n// Send message button\ndocument.getElementById('sendButton').addEventListener('click', () => {\n const message = document.getElementById('messageInput').value;\n const toUserId = document.getElementById('toUserIdInput').value;\n const fromUserId = document.getElementById('userIdInput').value;\n fetch(`${REtWNetworkUrl}/message`, {\n method: 'POST',\n headers: {\n 'Content-Type': 'application/json'\n },\n body: JSON.stringify({ from: fromUserId, to: toUserId, message })\n })\n .then(response => response.json())\n .then(data => {\n if (data.type === 'message_sent') {\n alert(\"Message sent!\");\n }\n })\n .catch(error => {\n console.error('Error:', error);\n alert(\"Can't connect to the server. Boo hoo.\");\n });\n});\n\nfunction startEventSource(userId) {\n const eventSource = new EventSource(`${REtWNetworkUrl}/stream/${userId}`);\n eventSource.onmessage = (event) => {\n const data = JSON.parse(event.data);\n\n if (data.type === 'userList') {\n const userList = document.getElementById('userList');\n userList.innerHTML = '';\n data.users.forEach(user => {\n const li = document.createElement('li');\n li.textContent = user;\n userList.appendChild(li);\n });\n }\n\n if (data.type === 'message') {\n const messages = document.getElementById('messages');\n const messageElement = document.createElement('div');\n messageElement.textContent = `${data.from}: ${data.message}`;\n messages.appendChild(messageElement);\n }\n };\n}","style.css":"","index.html":"\n\n\n\n REtW Week 5\n\n\n\n

REtW Week 5: Networking

Enter Password to Connect:

\n \n \n \n \n \n \n \n \n\n\n"},"chat_history":[{"message":"Let's get started!","project_id":1547,"created_at":"2024-05-24T02:37:36.108069Z","output_tokens":null,"sender":"human","code_id":89211,"deleted":0,"input_tokens":null,"id":46186},{"message":"","project_id":1547,"created_at":"2024-05-24T02:37:36.113883Z","output_tokens":null,"sender":"ai","code_id":89211,"deleted":0,"input_tokens":null,"id":46187},{"message":"adjust for server from flask import Flask, request, jsonify\nfrom flask_sse import sse\n\napp = Flask(__name__)\napp.register_blueprint(sse, url_prefix='/stream')\n\nconnections = {}\nPASSWORD = \"jippity\"\n\n@app.route('/authenticate', methods=['POST'])\ndef authenticate():\n data = request.get_json()\n if data['password'] == PASSWORD:\n return jsonify({'type': 'authenticated'})\n else:\n return jsonify({'type': 'error', 'message': 'Invalid password'}), 401\n\n@app.route('/register', methods=['POST'])\ndef register():\n data = request.get_json()\n user_id = data['userId']\n connections[user_id] = sse\n broadcast_user_list()\n return jsonify({'type': 'registered'})\n\n@app.route('/message', methods=['POST'])\ndef send_message():\n data = request.get_json()\n user_id = data['from']\n recipient_id = data['to']\n message = data['message']\n sse.publish({'type': 'message', 'from': user_id, 'message': message}, channel=recipient_id)\n return jsonify({'type': 'message_sent'})\n\ndef broadcast_user_list():\n user_list = list(connections.keys())\n for user_id in connections:\n sse.publish({'type': 'userList', 'users': user_list}, channel=user_id)\n\nif __name__ == '__main__':\n app.run(host='0.0.0.0', port=3000, debug=True)","project_id":1547,"created_at":"2024-05-24T02:37:38.956278Z","output_tokens":null,"sender":"human","code_id":89212,"deleted":0,"input_tokens":null,"id":46188},{"message":"### Changes to Server Implementation with Flask and Flask-SSE\n\n```python\nfrom flask import Flask, request, jsonify\nfrom flask_sse import sse\n\napp = Flask(__name__)\napp.register_blueprint(sse, url_prefix='/stream')\n\nconnections = {}\nPASSWORD = \"jippity\"\n\n@app.route('/authenticate', methods=['POST'])\ndef authenticate():\n data = request.get_json()\n if data['password'] == PASSWORD:\n return jsonify({'type': 'authenticated'})\n else:\n return jsonify({'type': 'error', 'message': 'Invalid password'}), 401\n\n@app.route('/register', methods=['POST'])\ndef register():\n data = request.get_json()\n user_id = data['userId']\n connections[user_id] = sse\n broadcast_user_list()\n return jsonify({'type': 'registered'})\n\n@app.route('/message', methods=['POST'])\ndef send_message():\n data = request.get_json()\n user_id = data['from']\n recipient_id = data['","project_id":1547,"created_at":"2024-05-24T02:37:38.961708Z","output_tokens":null,"sender":"ai","code_id":89212,"deleted":0,"input_tokens":null,"id":46189},{"message":"no adjust my js to use that server","project_id":1547,"created_at":"2024-05-24T02:37:46.032089Z","output_tokens":null,"sender":"human","code_id":89213,"deleted":0,"input_tokens":null,"id":46190},{"message":"Sure, let's adjust your `client.js` to properly communicate with the WebSocket server you have in your `server.js` file. Below is the updated `client.js`:\n\n### Updated client.js\n\n```javascript\n///////////CLIENT.JS//////\n\n// An IP address is a computer's online ID. In this case, the server's.\nconst serverIp = 'ws://localhost:3000';\n// The WebSocket API makes it pretty easy to set up a Network and Ports\nconst ws = new WebSocket(serverIp);\n\n// Check the auth button. Is the password correct?\ndocument.getElementById('authButton').addEventListener('click', () => {\n const password = document.getElementById('passwordInput').value;\n ws.send(JSON.stringify({ type: 'authenticate', password }));\n});\n\n// We use the API to handle different types of events.\nws.onopen = () => {\n console.log(\"WebSocket connection established\");\n};\n\nws.onerror = (error) => {\n console.error(\"WebSocket error:\", error);\n alert(\"Can't connect to the server. Boo hoo.\");\n};\n\nws.onclose = () => {\n console.log(\"WebSocket connection closed\");\n alert(\"Server connection closed. Sorry!\");\n};\n\n// This is the main function that handles receiving messages.\nws.onmessage = (event) => {\n // We will store the message in 'data'.\n const data = JSON.parse(event.data);\n\n if (data.type === 'authenticated') {\n document.getElementById('authSection').style.display = 'block';\n }\n\n if (data.type === 'error') {\n alert(data.message);\n }\n\n if (data.type === 'userList') {\n const userList = document.getElementById('userList');\n userList.innerHTML = '';\n data.users.forEach(user => {\n // This is a list\n const li = document.createElement('li');\n li.textContent = user;\n userList.appendChild(li);\n });\n }\n\n // Actually show the message\n if (data.type === 'message') {\n // Grab the HTML element we set up to hold messages.\n const messages = document.getElementById('messages');\n const messageElement = document.createElement('div');\n messageElement.textContent = `${data.from}: ${data.message}`;\n messages.appendChild(messageElement);\n }\n};\n\n// The connect button\ndocument.getElementById('connectButton').addEventListener('click', () => {\n const userId = document.getElementById('userIdInput').value;\n ws.send(JSON.stringify({ type: 'register', userId }));\n});\n\n// The send message button\ndocument.getElementById('sendButton').addEventListener('click', () => {\n const message = document.getElementById('messageInput').value;\n const toUserId = document.getElementById('toUserIdInput').value;\n ws.send(JSON.stringify({ type: 'message', to: toUserId,","project_id":1547,"created_at":"2024-05-24T02:37:46.061240Z","output_tokens":null,"sender":"ai","code_id":89213,"deleted":0,"input_tokens":null,"id":46191},{"message":"dont use websocket its a flask server that i showed","project_id":1547,"created_at":"2024-05-24T02:38:02.874207Z","output_tokens":null,"sender":"human","code_id":89214,"deleted":0,"input_tokens":null,"id":46192},{"message":"Alright, let's adjust the JavaScript code to use HTTP requests to communicate with your Flask server instead of WebSockets.\n\n### Updated client.js\n\n```javascript\n// Authentication\ndocument.getElementById('authButton').addEventListener('click', () => {\n const password = document.getElementById('passwordInput').value;\n fetch('/authenticate', {\n method: 'POST',\n headers: {\n 'Content-Type': 'application/json'\n },\n body: JSON.stringify({ password })\n })\n .then(response => response.json())\n .then(data => {\n if (data.type === 'authenticated') {\n document.getElementById('authSection').style.display = 'block';\n } else {\n alert(data.message);\n }\n })\n .catch(error => {\n console.error('Error:', error);\n alert(\"Can't connect to the server. Boo hoo.\");\n });\n});\n\n// Connect button\ndocument.getElementById('connectButton').addEventListener('click', () => {\n const userId = document.getElementById('userIdInput').value;\n fetch('/register', {\n method: 'POST',\n headers: {\n 'Content-Type': 'application/json'\n },\n body: JSON.stringify({ userId })\n })\n .then(response => response.json())\n .then(data => {\n if (data.type === 'registered') {\n alert(\"You are successfully registered!\");\n }\n })\n .catch(error => {\n console.error('Error:', error);\n alert(\"Can't connect to the server. Boo hoo.\");\n });\n});\n\n// Send message button\ndocument.getElementById('sendButton').addEventListener('click', () => {\n const message = document.getElementById('messageInput').value;\n const toUserId = document.getElementById('toUserIdInput').value;\n const fromUserId = document.getElementById('userIdInput').value;\n fetch('/message', {\n method: 'POST',\n headers: {\n 'Content-Type': 'application/json'\n },\n body: JSON.stringify({ from: fromUserId, to: toUserId, message })\n })\n .then(response => response.json())\n .then(data => {\n if (data.type === 'message_sent') {\n alert(\"Message sent!\");\n }\n })\n .catch(error => {\n console.error('Error:', error);\n alert(\"Can't connect to the server. Boo hoo.\");\n });\n});\n\n// EventSource for Server-Sent Events\nconst eventSource = new EventSource('/stream');\neventSource.onmessage = (event) => {\n const data = JSON.parse(event.data);\n\n if (data.type === 'userList') {\n const userList = document.getElementById('userList');\n userList.innerHTML = '';\n data.users.forEach(user => {\n const li = document.createElement('li');\n li.textContent = user;\n userList.appendChild(li);\n });\n }\n\n if (data.type === 'message') {\n const messages = document.getElementById('messages');\n const messageElement = document.createElement('div');\n messageElement","project_id":1547,"created_at":"2024-05-24T02:38:02.879725Z","output_tokens":null,"sender":"ai","code_id":89214,"deleted":0,"input_tokens":null,"id":46193},{"message":"add a REtWNetwork+ url variable","project_id":1547,"created_at":"2024-05-24T02:38:24.403283Z","output_tokens":null,"sender":"human","code_id":89215,"deleted":0,"input_tokens":null,"id":46194},{"message":"### Updated client.js\n\n```javascript\n// Define the base URL for the Flask server\nconst REtWNetworkUrl = 'http://localhost:3000';\n\n// Authentication\ndocument.getElementById('authButton').addEventListener('click', () => {\n const password = document.getElementById('passwordInput').value;\n fetch(`${REtWNetworkUrl}/authenticate`, {\n method: 'POST',\n headers: {\n 'Content-Type': 'application/json'\n },\n body: JSON.stringify({ password })\n })\n .then(response => response.json())\n .then(data => {\n if (data.type === 'authenticated') {\n document.getElementById('authSection').style.display = 'block';\n } else {\n alert(data.message);\n }\n })\n .catch(error => {\n console.error('Error:', error);\n alert(\"Can't connect to the server. Boo hoo.\");\n });\n});\n\n// Connect button\ndocument.getElementById('connectButton').addEventListener('click', () => {\n const userId = document.getElementById('userIdInput').value;\n fetch(`${REtWNetworkUrl}/register`, {\n method: 'POST',\n headers: {\n 'Content-Type': 'application/json'\n },\n body: JSON.stringify({ userId })\n })\n .then(response => response.json())\n .then(data => {\n if (data.type === 'registered') {\n alert(\"You are successfully registered!\");\n }\n })\n .catch(error => {\n console.error('Error:', error);\n alert(\"Can't connect to the server. Boo hoo.\");\n });\n});\n\n// Send message button\ndocument.getElementById('sendButton').addEventListener('click', () => {\n const message = document.getElementById('messageInput').value;\n const toUserId = document.getElementById('toUserIdInput').value;\n const fromUserId = document.getElementById('userIdInput').value;\n fetch(`${REtWNetworkUrl}/message`, {\n method: 'POST',\n headers: {\n 'Content-Type': 'application/json'\n },\n body: JSON.stringify({ from: fromUserId, to: toUserId, message })\n })\n .then(response => response.json())\n .then(data => {\n if (data.type === 'message_sent') {\n alert(\"Message sent!\");\n }\n })\n .catch(error => {\n console.error('Error:', error);\n alert(\"Can't connect to the server. Boo hoo.\");\n });\n});\n\n// EventSource for Server-Sent Events\nconst eventSource = new EventSource(`${REtWNetworkUrl}/stream`);\neventSource.onmessage = (event) => {\n const data = JSON.parse(event.data);\n\n if (data.type === 'userList') {\n const userList = document.getElementById('userList');\n userList.innerHTML = '';\n data.users.forEach(user => {\n const li = document.createElement('li');\n li.textContent = user;\n userList.appendChild(li);\n });\n }\n\n if (data.type === 'message') {\n const messages = document.getElementById('messages');\n const messageElement = document.createElement('div');\n messageElement.textContent = `${data.from}: ${data.message}`;\n messages.appendChild(messageElement);\n }\n};\n```\n\n### Explanation:\n1. **Base URL Definition**: Added a constant `REtWNetworkUrl` to store the base URL for the Flask server.\n2. **HTTP Requests**: Updated fetch requests for authentication, registration, and message sending to use the `REtWNetworkUrl` variable.\n3. **EventSource**: Updated the URL for the `EventSource` to use the `REtWNetworkUrl` variable.\n4. **Consistency**: Ensured that all endpoint calls are consistent and use the defined base URL.","project_id":1547,"created_at":"2024-05-24T02:38:24.408526Z","output_tokens":null,"sender":"ai","code_id":89215,"deleted":0,"input_tokens":null,"id":46195},{"message":"make it work with this server\n// Define the base URL for the Flask server\nconst REtWNetworkUrl = 'https://f827abac-23d5-44c0-b759-04a3093dccd2-00-17q7hobxm3343.kirk.replit.dev';\n\n// Authentication\ndocument.getElementById('authButton').addEventListener('click', () => {\n const password = document.getElementById('passwordInput').value;\n fetch(`${REtWNetworkUrl}/authenticate`, {\n method: 'POST',\n headers: {\n 'Content-Type': 'application/json'\n },\n body: JSON.stringify({ password })\n })\n .then(response => response.json())\n .then(data => {\n if (data.type === 'authenticated') {\n document.getElementById('authSection').style.display = 'block';\n } else {\n alert(data.message);\n }\n })\n .catch(error => {\n console.error('Error:', error);\n alert(\"Can't connect to the server. Boo hoo.\");\n });\n});\n\n// Connect button\ndocument.getElementById('connectButton').addEventListener('click', () => {\n const userId = document.getElementById('userIdInput').value;\n fetch(`${REtWNetworkUrl}/register`, {\n method: 'POST',\n headers: {\n 'Content-Type': 'application/json'\n },\n body: JSON.stringify({ userId })\n })\n .then(response => response.json())\n .then(data => {\n if (data.type === 'registered') {\n alert(\"You are successfully registered!\");\n }\n })\n .catch(error => {\n console.error('Error:', error);\n alert(\"Can't connect to the server. Boo hoo.\");\n });\n});\n\n// Send message button\ndocument.getElementById('sendButton').addEventListener('click', () => {\n const message = document.getElementById('messageInput').value;\n const toUserId = document.getElementById('toUserIdInput').value;\n const fromUserId = document.getElementById('userIdInput').value;\n fetch(`${REtWNetworkUrl}/message`, {\n method: 'POST',\n headers: {\n 'Content-Type': 'application/json'\n },\n body: JSON.stringify({ from: fromUserId, to: toUserId, message })\n })\n .then(response => response.json())\n .then(data => {\n if (data.type === 'message_sent') {\n alert(\"Message sent!\");\n }\n })\n .catch(error => {\n console.error('Error:', error);\n alert(\"Can't connect to the server. Boo hoo.\");\n });\n});\n\n// EventSource for Server-Sent Events\nconst eventSource = new EventSource(`${REtWNetworkUrl}/stream`);\neventSource.onmessage = (event) => {\n const data = JSON.parse(event.data);\n\n if (data.type === 'userList') {\n const userList = document.getElementById('userList');\n userList.innerHTML = '';\n data.users.forEach(user => {\n const li = document.createElement('li');\n li.textContent = user;\n userList.appendChild(li);\n });\n }\n\n if (data.type === 'message') {\n const messages = document.getElementById('messages');\n const messageElement = document.createElement('div');\n messageElement.textContent = `${data.from}: ${data.message}`;\n messages.appendChild(messageElement);\n }\n};","project_id":1547,"created_at":"2024-05-24T02:41:20.134401Z","output_tokens":null,"sender":"human","code_id":89220,"deleted":0,"input_tokens":null,"id":46196},{"message":"### Updated client.js\n\n```javascript\n// Define the base URL for the Flask server\nconst REtWNetworkUrl = 'https://f827abac-23d5-44c0-b759-04a3093dccd2-00-17q7hobxm3343.kirk.replit.dev';\n\n// Authentication\ndocument.getElementById('authButton').addEventListener('click', () => {\n const password = document.getElementById('passwordInput').value;\n fetch(`${REtWNetworkUrl}/authenticate`, {\n method: 'POST',\n headers: {\n 'Content-Type': 'application/json'\n },\n body: JSON.stringify({ password })\n })\n .then(response => response.json())\n .then(data => {\n if (data.type === 'authenticated') {\n document.getElementById('authSection').style.display = 'block';\n } else {\n alert(data.message);\n }\n })\n .catch(error => {\n console.error('Error:', error);\n alert(\"Can't connect to the server. Boo hoo.\");\n });\n});\n\n// Connect button\ndocument.getElementById('connectButton').addEventListener('click', () => {\n const userId = document.getElementById('userIdInput').value;\n fetch(`${REtWNetworkUrl}/register`, {\n method: 'POST',\n headers: {\n 'Content-Type': 'application/json'\n },\n body: JSON.stringify({ userId })\n })\n .then(response => response.json())\n .then(data => {\n if (data.type === 'registered') {\n alert(\"You are successfully registered!\");\n }\n })\n .catch(error => {\n console.error('Error:', error);\n alert(\"Can't connect to the server. Boo hoo.\");\n });\n});\n\n// Send message button\ndocument.getElementById('sendButton').addEventListener('click', () => {\n const message = document.getElementById('messageInput').value;\n const toUserId = document.getElementById('toUserIdInput').value;\n const fromUserId = document.getElementById('userIdInput').value;\n fetch(`${REtWNetworkUrl}/message`, {\n method: 'POST',\n headers: {\n 'Content-Type': 'application/json'\n },\n body: JSON.stringify({ from: fromUserId, to: toUserId, message })\n })\n .then(response => response.json())\n .then(data => {\n if (data.type === 'message_sent') {\n alert(\"Message sent!\");\n }\n })\n .catch(error => {\n console.error('Error:', error);\n alert(\"Can't connect to the server. Boo hoo.\");\n });\n});\n\n// EventSource for Server-Sent Events\nconst eventSource = new EventSource(`${REtWNetworkUrl}/stream`);\neventSource.onmessage = (event) => {\n const data = JSON.parse(event.data);\n\n if (data.type === 'userList') {\n const userList = document.getElementById('userList');\n userList.innerHTML = '';\n data.users.forEach(user => {\n const li = document.createElement('li');\n li.textContent = user;\n userList.appendChild(li);\n });\n }\n\n if (data.type === 'message') {\n const messages = document.getElementById('messages');\n const messageElement = document.createElement('div');\n messageElement.textContent = `${data.from}: ${data.message}`;\n messages.appendChild(messageElement);\n }\n};\n```\n\n### Explanation:\n1. **Base URL Definition**: Set the constant `REtWNetworkUrl` to the given Flask server URL.\n2. **HTTP Requests**: Each fetch request for authentication, registration, and message sending now uses the `REtWNetworkUrl` variable to construct the full endpoint URL.\n3. **EventSource**: The URL for the `EventSource` is updated to use the `REtWNetworkUrl` variable, ensuring it connects to the correct server for real-time updates.\n\nThis script will now make HTTP requests to your Flask server at the specified URL and handle server-sent events correctly. Ensure that your Flask server has CORS enabled if you encounter cross-origin issues.","project_id":1547,"created_at":"2024-05-24T02:41:20.141242Z","output_tokens":null,"sender":"ai","code_id":89220,"deleted":0,"input_tokens":null,"id":46197},{"message":"make it work with this server from flask import Flask, request, jsonify, g\n\napp = Flask(__name__)\n\nconnections = {}\nPASSWORD = \"jippity\"\n\n@app.before_request\ndef load_connections():\n g.connections = connections\n\n@app.route('/authenticate', methods=['POST'])\ndef authenticate():\n data = request.get_json()\n if data['password'] == PASSWORD:\n return jsonify({'type': 'authenticated'})\n else:\n return jsonify({'type': 'error', 'message': 'Invalid password'}), 401\n\n@app.route('/register', methods=['POST'])\ndef register():\n data = request.get_json()\n user_id = data['userId']\n g.connections[user_id] = {'channels': []}\n broadcast_user_list()\n return jsonify({'type': 'registered'})\n\n@app.route('/message', methods=['POST'])\ndef send_message():\n data = request.get_json()\n user_id = data['from']\n recipient_id = data['to']\n message = data['message']\n recipient_info = g.connections.get(recipient_id)\n if recipient_info:\n for channel in recipient_info['channels']:\n channel.publish({'type': 'message', 'from': user_id, 'message': message})\n return jsonify({'type': 'message_sent'})\n\n@app.route('/stream/', methods=['GET'])\ndef stream(user_id):\n if user_id not in g.connections:\n return jsonify({'type': 'error', 'message': 'User not registered'}), 404\n\n def generate():\n channel = g.connections[user_id]['channels'].append(ServerSentEvent())\n try:\n while True:\n event = yield channel.get()\n if event is None:\n break\n yield event\n finally:\n g.connections[user_id]['channels'].remove(channel)\n\n return app.response_class(generate(), mimetype='text/event-stream')\n\ndef broadcast_user_list():\n user_list = list(g.connections.keys())\n for user_id, user_info in g.connections.items():\n for channel in user_info['channels']:\n channel.publish({'type': 'userList', 'users': user_list})\n\nclass ServerSentEvent:\n def __init__(self):\n self.events = []\n\n def publish(self, data):\n self.events.append(data)\n\n def get(self):\n if self.events:\n return self.events.pop(0)\n else:\n return None\n\nif __name__ == '__main__':\n mod = importlib.import_module(module)\n app.run(host='0.0.0.0', port=3000, debug=True)","project_id":1547,"created_at":"2024-05-24T02:45:35.695293Z","output_tokens":null,"sender":"human","code_id":89223,"deleted":0,"input_tokens":null,"id":46198},{"message":"### Updated client.js\n\n```javascript\n// Define the base URL for the Flask server\nconst REtWNetworkUrl = 'https://f827abac-23d5-44c0-b759-04a3093dccd2-00-17q7hobxm3343.kirk.replit.dev';\n\n// Authentication\ndocument.getElementById('authButton').addEventListener('click', () => {\n const password = document.getElementById('passwordInput').value;\n fetch(`${REtWNetworkUrl}/authenticate`, {\n method: 'POST',\n headers: {\n 'Content-Type': 'application/json'\n },\n body: JSON.stringify({ password })\n })\n .then(response => response.json())\n .then(data => {\n if (data.type === 'authenticated') {\n document.getElementById('authSection').style.display = 'block';\n } else {\n alert(data.message);\n }\n })\n .catch(error => {\n console.error('Error:', error);\n alert(\"Can't connect to the server. Boo hoo.\");\n });\n});\n\n// Connect button\ndocument.getElementById('connectButton').addEventListener('click', () => {\n const userId = document.getElementById('userIdInput').value;\n fetch(`${REtWNetworkUrl}/register`, {\n method: 'POST',\n headers: {\n 'Content-Type': 'application/json'\n },\n body: JSON.stringify({ userId })\n })\n .then(response => response.json())\n .then(data => {\n if (data.type === 'registered') {\n alert(\"You are successfully registered!\");\n startEventSource(userId);\n }\n })\n .catch(error => {\n console.error('Error:', error);\n alert(\"Can't connect to the server. Boo hoo.\");\n });\n});\n\n// Send message button\ndocument.getElementById('sendButton').addEventListener('click', () => {\n const message = document.getElementById('messageInput').value;\n const toUserId = document.getElementById('toUserIdInput').value;\n const fromUserId = document.getElementById('userIdInput').value;\n fetch(`${REtWNetworkUrl}/message`, {\n method: 'POST',\n headers: {\n 'Content-Type': 'application/json'\n },\n body: JSON.stringify({ from: fromUserId, to: toUserId, message })\n })\n .then(response => response.json())\n .then(data => {\n if (data.type === 'message_sent') {\n alert(\"Message sent!\");\n }\n })\n .catch(error => {\n console.error('Error:', error);\n alert(\"Can't connect to the server. Boo hoo.\");\n });\n});\n\nfunction startEventSource(userId) {\n const eventSource = new EventSource(`${REtWNetworkUrl}/stream/${userId}`);\n eventSource.onmessage = (event) => {\n const data = JSON.parse(event.data);\n\n if (data.type === 'userList') {\n const userList = document.getElementById('userList');\n userList.innerHTML = '';\n data.users.forEach(user => {\n const li = document.createElement('li');\n li.textContent = user;\n userList.appendChild(li);\n });\n }\n\n if (data.type === 'message') {\n const messages = document.getElementById('messages');\n const messageElement = document.createElement('div');\n messageElement.textContent = `${data.from}: ${data.message}`;\n messages.appendChild(messageElement);\n }\n };\n}\n```\n\n### Explanation:\n1. **Base URL Definition**: Set the constant `REtWNetworkUrl` to the given Flask server URL.\n2. **HTTP Requests**: Each fetch request for authentication, registration, and message sending now uses the `REtWNetworkUrl` variable to construct the full endpoint URL.\n3. **EventSource**: Defined a `startEventSource` function to initiate the Server-Sent Events connection after the user has successfully registered.\n4. **Event Handling**: The `onmessage` handler processes incoming events and updates the DOM accordingly.\n5. **Consistent Structure**: Ensured that all endpoint calls are consistent and use the defined base URL.","project_id":1547,"created_at":"2024-05-24T02:45:35.700732Z","output_tokens":null,"sender":"ai","code_id":89223,"deleted":0,"input_tokens":null,"id":46199},{"message":"edit the server to fix the login\n","project_id":1547,"created_at":"2024-05-24T02:46:39.694048Z","output_tokens":null,"sender":"human","code_id":89226,"deleted":0,"input_tokens":null,"id":46202},{"message":"Let's update the server code to ensure that the login functionality works correctly. We'll focus on making sure that the authentication and registration processes are handled properly, and that the connections are managed correctly.\n\n### Updated server.py\n\n```python\nfrom flask import Flask, request, jsonify, g\n\napp = Flask(__name__)\n\nconnections = {}\nPASSWORD = \"jippity\"\n\n@app.before_request\ndef load_connections():\n g.connections = connections\n\n@app.route('/authenticate', methods=['POST'])\ndef authenticate():\n data = request.get_json()\n if data and data.get('password') == PASSWORD:\n return jsonify({'type': 'authenticated'})\n else:\n return jsonify({'type': 'error', 'message': 'Invalid password'}), 401\n\n@app.route('/register', methods=['POST'])\ndef register():\n data = request.get_json()\n user_id = data.get('userId')\n if user_id:\n g.connections[user_id] = {'channels': []}\n broadcast_user_list()\n return jsonify({'type': 'registered'})\n else:\n return jsonify({'type': 'error', 'message': 'Invalid user ID'}), 400\n\n@app.route('/message', methods=['POST'])\ndef send_message():\n data = request.get_json()\n user_id = data.get('from')\n recipient_id = data.get('to')\n message = data.get('message')\n recipient_info = g.connections.get(recipient_id)\n if recipient_info:\n for channel in recipient_info['channels']:\n channel.publish({'type': 'message', 'from': user_id, 'message': message})\n return jsonify({'type': 'message_sent'})\n else:\n return jsonify({'type': 'error', 'message': 'Recipient not found'}), 404\n\n@app.route('/stream/', methods=['GET'])\ndef stream(user_id):\n if user_id not in g.connections:\n return jsonify({'type': 'error', 'message': 'User not registered'}), 404\n\n def generate():\n sse = ServerSentEvent()\n g.connections[user_id]['channels'].append(sse)\n try:\n while True:\n event = sse.get()\n if event is None:\n break\n yield f\"data: {json.dumps(event)}\\n\\n\"\n finally:\n g.connections[user_id]['channels'].remove(sse)\n\n return app.response_class(generate(), mimetype='text/event-stream')\n\ndef broadcast_user_list():\n user_list = list(g.connections.keys())\n for user_id, user_info in g.connections.items():\n for channel in user_info['channels']:\n channel.publish({'type': 'userList', 'users': user_list})\n\nclass ServerSentEvent:\n def __init__(self):\n self.events = []\n\n def publish(self, data):\n self.events.append(data)\n\n def get(self):\n if self.events:\n return self.events.pop(0)\n else:\n return None\n\nif __name__ == '__main__':\n app.run(host='0.0.0.0', port=3000, debug=True)\n```\n\n### Explanation:\n1. **Authentication Improvement**: The `authenticate` function checks if the `password` field is present in the request data and matches the predefined `PASSWORD`.\n2. **Registration Validation**: The `register` function validates that the `userId` field is present in the request data before registering the user.\n3. **Message Handling**: The `send_message` function checks if the recipient exists before attempting to send a message.\n4. **Event Streaming**: The `stream` endpoint now utilizes a generator function and properly handles the `ServerSentEvent` objects for server-sent events.\n5. **Broadcasting User List**: The `broadcast_user_list` function iterates through all registered users and updates their channels with the current list of users.\n\nWith these changes, the server should handle authentication, user registration, and messaging more reliably.","project_id":1547,"created_at":"2024-05-24T02:46:39.699436Z","output_tokens":null,"sender":"ai","code_id":89226,"deleted":0,"input_tokens":null,"id":46203}],"assets":[],"messages_sent":8,"comments":[],"steps":[{"title":"Introduce Netty the Explorer","instruction":"Meet the adventurous protagonist who will guide the players through the world of networking.","created_at":"2024-05-21T13:51:15.658913","project_id":1547,"complete":false,"step_number":0,"updated_at":"2024-05-23T23:10:36.836296","id":8596},{"title":"Interactive Network Map","instruction":"Explore a visually appealing map representing a network, with computers and connections that the players can interact with.","created_at":"2024-05-21T13:51:15.658970","project_id":1547,"complete":false,"step_number":1,"updated_at":"2024-05-23T23:10:36.836388","id":8597},{"title":"Send and Receive Messages","instruction":"Allow players to send and receive messages between computers, emphasizing the concept of data transmission over a network.","created_at":"2024-05-21T13:51:15.659013","project_id":1547,"complete":false,"step_number":2,"updated_at":"2024-05-23T23:10:36.836437","id":8598},{"title":"Mini Games for Learning","instruction":"Incorporate mini-games that reinforce networking concepts in a fun and interactive way.","created_at":"2024-05-21T13:51:15.659053","project_id":1547,"complete":false,"step_number":3,"updated_at":"2024-05-23T23:10:36.836484","id":8599},{"title":"Character Movement Controls","instruction":"Implement controls for Netty and her friends to navigate through the network map and interact with different elements.","created_at":"2024-05-21T13:51:15.659092","project_id":1547,"complete":false,"step_number":4,"updated_at":"2024-05-23T23:10:36.836529","id":8600},{"title":"Score and Progress Tracking","instruction":"Track the players' progress and provide feedback to reinforce learning and encourage exploration.","created_at":"2024-05-21T13:51:15.659131","project_id":1547,"complete":false,"step_number":5,"updated_at":"2024-05-23T23:10:36.836575","id":8601},{"title":"Visual Animations","instruction":"Add visually appealing animations to demonstrate data transmission and network interactions in an engaging manner.","created_at":"2024-05-21T13:51:15.659169","project_id":1547,"complete":false,"step_number":6,"updated_at":"2024-05-23T23:10:36.836619","id":8602},{"title":"Interactive Quiz","instruction":"Include an interactive quiz to test players' understanding of networking concepts and reinforce learning outcomes.","created_at":"2024-05-21T13:51:15.659230","project_id":1547,"complete":false,"step_number":7,"updated_at":"2024-05-23T23:10:36.836663","id":8603}]}

REtW Week 5: Networking

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