Nginx: Dump incoming request header (CDN debugging)

2serv.py

# Taken and adapted from https://gist.github.com/phrawzty/62540f146ee5e74ea1ab
#!/usr/bin/env python2

import SimpleHTTPServer
import SocketServer
import logging
import sys

logging.basicConfig(stream=sys.stdout, level=logging.DEBUG)

PORT = 6677

class GetHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):

    def do_GET(self):
        logging.info(self.headers)
        SimpleHTTPServer.SimpleHTTPRequestHandler.do_GET(self)


Handler = GetHandler
httpd = SocketServer.TCPServer(("", PORT), Handler)

logging.info("Server running at port {}".format(PORT))

httpd.serve_forever()

nginx-site.conf

# Taken from https://stackoverflow.com/questions/24380123/how-to-log-all-headers-in-nginx

server {
  # (existing config)

 location @uwsgi {
    include uwsgi_params;

    # mirror requests to /mirror
    mirror /mirror;
    mirror_request_body off;

    uwsgi_pass unix:///location/to/uwsgi.sock;
    uwsgi_read_timeout 120s;
  }

  location /mirror {
    # Use internal so that location is not available for direct requests
    internal;
    # Use small timeout not to wait for replies (this is not necessary)
    proxy_read_timeout 1;
    # Pass headers to logging server
    proxy_pass http://127.0.0.1:6677;
    # send original request uri in special header
    proxy_set_header X-Original-URI $request_uri;
  }
}