Shut Python webserver down after a defined number of accesses/downloads

Question

I'm trying to find a way, to shut down a Python webserver after a certain number of accesses/downloads. I simply run a Python webserver with the following code:

import http.server, socketserver

port = 8800
handler = http.server.SimpleHTTPRequestHandler
httpd = socketserver.TCPServer(("", port), handler)
httpd.serve_forever()

I want to stop serving, after a certain number of downloads/file-accesses have been reached.

A single file access is usually logged as:

192.168.0.1- - [01/Jan/1970 00:00:00] "GET /file.txt HTTP/1.1" 200 -

Is there a way to directly parse the logs of the webserver and react accordingly?

For instance, if a certain number of occurrences of "GET .* 200 -have been reached, stop serving.

Well, you can subclass http.server.SimpleHTTPRequestHandler and make the derived class do whatever you want with the requests. — ForceBru
– ForceBru, Commented Oct 25, 2017 at 14:18
Hi @SaAtomic, do you need inner-python solution? or could be an external one, let's say, in unix-like bash scripting? — Rafael Aguilar
– Rafael Aguilar, Commented Oct 25, 2017 at 14:21
@RafaelAguilar I'd prefer Python, but I'm open for suggestions. How would you accomplish this in bash? — SaAtomic
– SaAtomic, Commented Oct 26, 2017 at 5:27

Maurice Meyer · Accepted Answer · 2017-10-25 14:53:10Z

1

You could count the number of requests and exit the http server after a specific amount is reached. This is a very basic example how it could work:

import http.server, socketserver
import sys

def shutdown(fn):
    def wrapper(*args, **kw):
        cls = args[0]

        if cls.count > 5:
            print ("shutting down server")
            sys.exit(0) 
        else:
            return fn(*args,**kw)
    return wrapper


class myHandler(http.server.SimpleHTTPRequestHandler):
    count = 0

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)

    @shutdown
    def do_GET(self, *args, **kwargs):
        myHandler.count += 1
        super().do_GET(*args, **kwargs)

    @shutdown
    def do_POST(self, *args, **kwargs):
        self.count += 1
        super().do_POST(*args, **kwargs)


port = 8800
handler = myHandler
httpd = socketserver.TCPServer(("", port), handler)
httpd.serve_forever()

answered Oct 25, 2017 at 14:53

Maurice Meyer

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2 Comments

SaAtomic Over a year ago

needs some fine-tuning, as the shutdown doesn't work right now - but I can definitely use this as for my project! thank you very much!

SaAtomic Over a year ago

The exit function does not work, as it simply raises a SystemExit exception and doesn't know what to do with it

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