Initial Commit
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108
index.html
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108
index.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>YAML Editor</title>
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<link href="https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap" rel="stylesheet">
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<style>
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body {
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font-family: 'Roboto', sans-serif;
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background-color: #f8f9fa;
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color: #212529;
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margin: 0;
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padding: 20px;
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line-height: 1.6;
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}
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.container {
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max-width: 800px;
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margin: auto;
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padding: 20px;
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background: #fff;
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border-radius: 10px;
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box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
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text-align: center;
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}
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.button {
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background-color: #007bff;
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color: #fff;
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border: none;
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padding: 10px 20px;
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margin: 10px 5px;
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border-radius: 5px;
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cursor: pointer;
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transition: background-color 0.3s;
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font-weight: 500;
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}
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.button:hover {
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background-color: #0056b3;
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}
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textarea {
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width: 100%;
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padding: 10px;
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border: 1px solid #ccc;
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border-radius: 5px;
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margin-top: 10px;
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}
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</style>
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<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/vanjs-org/van/public/van-1.2.7.nomodule.min.js"></script>
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</head>
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<body>
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<div class="container" id="appContainer">
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<label for="yamlContent"></label><textarea id="yamlContent" rows="10"></textarea><br>
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<button class="button" onclick="loadData()">Reload Data</button>
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<button class="button" onclick="saveData()">Save Data</button>
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<div id="statusMessage"></div>
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</div>
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<script>
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function displayStatus(message) {
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document.getElementById('statusMessage').textContent = message;
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}
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async function loadData() {
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try {
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displayStatus('Loading data...');
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const response = await fetch('/data');
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if (!response.ok) {
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displayStatus(`HTTP error! Status: ${response.status}`);
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return;
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}
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const data = await response.json();
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if (typeof data !== 'object' || data === null || !('text' in data)) {
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displayStatus('Invalid format in response data');
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return;
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}
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document.getElementById('yamlContent').value = data.text || '';
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} catch (error) {
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console.error('Error loading data:', error);
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displayStatus(`Failed to load data: ${error.message}`);
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} finally {
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displayStatus('');
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}
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}
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function saveData() {
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const content = document.getElementById('yamlContent').value;
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displayStatus('Saving data...');
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fetch('/data', {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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},
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body: JSON.stringify({ text: content }),
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})
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.then(response => response.text())
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.then(data => {
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alert(data);
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displayStatus('');
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})
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.catch(error => {
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console.error('Error:', error);
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displayStatus('Failed to save data.');
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});
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}
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loadData();
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</script>
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</body>
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</html>
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105
main.py
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105
main.py
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"""
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Flask app for YAML file I/O.
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Provides web interface for reading and updating YAML file content.
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Handles HTTP GET (view) and POST (update) at '/data', and serves index page at '/'.
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Author: Isaak Buslovich
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Date: 2023-12-21
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"""
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from flask import Flask, request, jsonify, send_from_directory
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import yaml
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from pathlib import Path
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import logging
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app = Flask(__name__, static_folder='.', static_url_path='')
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logging.basicConfig(level=logging.INFO)
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DATA_FILE = 'data.yaml'
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def read_yaml():
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"""
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Reads and returns content from the YAML file.
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Returns:
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dict: A dictionary with the key 'text' containing file content.
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None: If an error occurs, along with an error message.
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"""
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file_path = Path(DATA_FILE)
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try:
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if not file_path.is_file():
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logging.info("YAML file not found. Returning empty data.")
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return {'text': ''}, None
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with file_path.open() as file:
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data = yaml.safe_load(file) or {}
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return {'text': data.get('text', '')}, None
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except yaml.YAMLError as e:
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logging.error(f"YAML Error: {e}", exc_info=True)
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return None, f"YAML parsing error: {e}"
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except IOError as e:
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logging.error(f"IO Error: {e}", exc_info=True)
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return None, f"File I/O error: {e}"
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except Exception as e:
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logging.error(f"Unexpected Error: {e}", exc_info=True)
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return None, f"Unexpected error: {e}"
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def write_yaml(content):
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"""
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Writes content to the YAML file.
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Args:
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content (str): The text content to be saved in the file.
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Returns:
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bool: True if the operation was successful, False otherwise.
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None: If successful, or an error message if an error occurs.
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"""
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file_path = Path(DATA_FILE)
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try:
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with file_path.open('w') as file:
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yaml.dump({'text': content}, file)
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return True, None
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except Exception as e:
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logging.error(f"Error writing YAML file: {e}", exc_info=True)
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return False, f"Error writing file: {e}"
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@app.route('/data', methods=['GET', 'POST'])
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def handle_data():
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"""
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Handles GET and POST requests to '/data'.
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GET: Returns the content of the YAML file.
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POST: Updates the content of the YAML file.
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Returns:
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JSON response for GET requests.
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Text message for POST requests.
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"""
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if request.method == 'GET':
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data, error = read_yaml()
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if error:
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return error, 500
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return jsonify(data), 200
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elif request.method == 'POST':
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content = request.json.get('text', '')
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success, error = write_yaml(content)
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if error:
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return error, 500
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return "File saved successfully", 200
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@app.route('/')
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def index():
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"""
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Serves the main index HTML page.
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Returns:
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HTML content of the main page.
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"""
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return send_from_directory('.', 'index.html')
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if __name__ == '__main__':
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app.run(debug=True)
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