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bxt/proxy.py

Last active Aug 30, 2020
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A very basic caching python HTTP proxy server.
# Originally from http://sharebear.co.uk/blog/2009/09/17/very-simple-python-caching-proxy/
#
# Usage:
# A call to http://localhost:80000/example.com/foo.html will cache the file
# at http://example.com/foo.html on disc and not redownload it again.
# To clear the cache simply do a `rm *.cached`. To stop the server simply
# send SIGINT (Ctrl-C). It does not handle any headers or post data.
import BaseHTTPServer
import hashlib
import os
import urllib2
class CacheHandler(BaseHTTPServer.BaseHTTPRequestHandler):
def do_GET(self):
m = hashlib.md5()
m.update(self.path)
cache_filename = m.hexdigest() + ".cached"
if os.path.exists(cache_filename):
print "Cache hit"
data = open(cache_filename).readlines()
else:
print "Cache miss"
data = urllib2.urlopen("http:/" + self.path).readlines()
open(cache_filename, 'wb').writelines(data)
self.send_response(200)
self.end_headers()
self.wfile.writelines(data)
def run():
server_address = ('', 8000)
httpd = BaseHTTPServer.HTTPServer(server_address, CacheHandler)
httpd.serve_forever()
if __name__ == '__main__':
run()
@justinmeiners

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@justinmeiners justinmeiners commented Jan 14, 2020

I made one for Python 3 with some additional improvements: https://gist.github.com/justinmeiners/24dcf5904490b621220bed643651f681

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