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