Quick script to share a file over network

share.py

#!/usr/bin/python

import sys
import os
import tornado.web
import tornado.ioloop
path = ""
if len(sys.argv) != 2:
    print("Usage %s file" % sys.argv[0])
    exit(-1)
if os.path.exists(sys.argv[1]):
    path = sys.argv[1]
else:
    print("File doesn't exist")
    exit(-1)
class MainHandler(tornado.web.RequestHandler):
    def get(self):
        self.set_header ('Content-Type', 'application/octet-stream')
        self.set_header ('Content-disposition', 'attachment; filename="' + os.path.split(path)[1] + '"')
        with open(path, 'rb') as f:
            while 1:
                data = f.read(16384) # or some other nice-sized chunk
                if not data: break
                self.write(data)
        self.finish()

if __name__ == "__main__":
    application = tornado.web.Application([
        (r"/", MainHandler),
    ])
    application.listen(1337)
    tornado.ioloop.IOLoop.instance().start()