Https with Http in Flask Python

Question

I have a client server application. I managed to make them connect over https using SSl encryption using this

    context = SSL.Context(SSL.SSLv3_METHOD)
    context.use_privatekey_file('/path_to_key/key.key')
    context.use_certificate_file('/path_to_cert/cert.crt')
    app.run(use_reloader=True, host='0.0.0.0',port=9020,ssl_context = context)

Now I want to run the server using both http and https. Is there any possible way to do that?

Answer 1

First big thing: don't use the built in web server in flask to do any heavy lifting. You should use a real web server like apache (mod_wsgi) nginex + gunicore, etc. These servers have documentation on how to run http and https simultaneously.

Answer 2

My I suggest trying out Flask-SSLify - https://github.com/kennethreitz/flask-sslify

Usage

Usage is pretty simple:

from flask import Flask
from flask_sslify import SSLify

app = Flask(__name__)
sslify = SSLify(app)

If you make an HTTP request, it will automatically redirect:

$ curl -I http://secure-samurai.herokuapp.com/
HTTP/1.1 302 FOUND
Content-length: 281
Content-Type: text/html; charset=utf-8
Date: Sun, 29 Apr 2012 21:39:36 GMT
Location: https://secure-samurai.herokuapp.com/
Server: gunicorn/0.14.2
Strict-Transport-Security: max-age=31536000
Connection: keep-alive

Install

Installation is simple too:

$ pip install Flask-SSLify