Spaces:
Running
Running
| import os | |
| from flask import Flask, render_template_string | |
| app = Flask(__name__) | |
| # HTML template using Jinja2 syntax to insert the URL safely | |
| # Added basic styling to make the iframe fill the page | |
| HTML_TEMPLATE = """ | |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Iframe Viewer</title> | |
| <style> | |
| html, body { | |
| margin: 0; | |
| padding: 0; | |
| height: 100%; | |
| width: 100%; | |
| overflow: hidden; /* Prevent scrollbars on the main page */ | |
| } | |
| iframe { | |
| display: block; /* Removes bottom space under iframe */ | |
| width: 100%; | |
| height: 100%; | |
| border: none; /* Remove default border */ | |
| } | |
| .error { | |
| padding: 20px; | |
| color: red; | |
| font-family: sans-serif; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| {% if iframe_url %} | |
| <iframe src="{{ iframe_url }}"> | |
| Your browser does not support iframes. | |
| </iframe> | |
| {% else %} | |
| <div class="error"> | |
| Error: The 'IFRAME_URL' secret is not set in the Space settings. | |
| Please add it under Settings -> Repository secrets. | |
| </div> | |
| {% endif %} | |
| </body> | |
| </html> | |
| """ | |
| def display_iframe(): | |
| # Read the URL from the environment variable 'IFRAME_URL' | |
| # os.getenv returns None if the variable isn't set | |
| url_from_env = os.getenv('IFRAME_URL') | |
| # Pass the URL to the template rendering function | |
| # Flask's render_template_string automatically handles basic HTML escaping | |
| # for security if used directly in text, but here it's okay for the src attribute. | |
| return render_template_string(HTML_TEMPLATE, iframe_url=url_from_env) | |
| if __name__ == '__main__': | |
| # Hugging Face Spaces expect the app to run on port 7860 | |
| # Binding to '0.0.0.0' makes it accessible from outside the container | |
| app.run(host='0.0.0.0', port=7860) |