commit 0b23a75f2a131b43a15301bdf73aebf85a09876a Author: David Fifield david@bamsoftware.com Date: Tue Sep 11 08:16:25 2012 -0700

Add usage and everything to flashproxy-reg-email. --- flashproxy-reg-email | 165 ++++++++++++++++++++++++++++++++++++++++++++----- 1 files changed, 148 insertions(+), 17 deletions(-)

diff --git a/flashproxy-reg-email b/flashproxy-reg-email index 09cd1ea..246b1dc 100755 --- a/flashproxy-reg-email +++ b/flashproxy-reg-email @@ -1,28 +1,159 @@ #!/usr/bin/env python

+import getopt import re import smtplib +import socket import sys

-smtp = smtplib.SMTP("gmail-smtp-in.l.google.com.", 25, "[127.0.0.1]") -smtp.set_debuglevel(1) -smtp.starttls() +DEFAULT_REMOTE_ADDRESS = "" +DEFAULT_REMOTE_PORT = 9000 +DEFAULT_EMAIL_ADDRESS = "hoddwee@gmail.com" +# dig MX gmail.com +DEFAULT_SMTP_HOST = "gmail-smtp-in.l.google.com" +DEFAULT_SMTP_PORT = 25

-# Grep the EHLO response for our public IP address. -smtp.ehlo() -m = re.search(r'at your service, [([0-9a-fA-F.:]+)]', smtp.ehlo_resp) -if not m: - print >> sys.stderr, "Could not determine external IP address." +# Use this to prevent Python smtplib from guessing and leaking our hostname. +EHLO_FQDN = "[127.0.0.1]" +FROM_EMAIL_ADDRESS = "nobody@localhost" + +class options(object): + remote_addr = None + email_addr = None + smtp_addr = None + debug = False + +def usage(f = sys.stdout): + print >> f, """\ +Usage: %(progname)s [REMOTE][:PORT] +Register with a flash proxy facilitator through email. Makes a STARTTLS +connection to an SMTP server and sends mail with a client IP address to a +designated address. By default the remote address registered is +"%(remote_addr)s" (the external IP address is guessed). + +Using an SMTP server or email address other than the defaults will not work +unless you have made special arrangements to connect them to a facilitator. + + -d, --debug enable debugging output (Python smtplib messages). + -e, --email=ADDRESS send mail to ADDRESS (default "%(email_addr)s"). + -h, --help show this help. + -s, --smtp=HOST[:PORT] use the given SMTP server + (default "%(smtp_addr)s"). \ +""" % { + "progname": sys.argv[0], + "remote_addr": format_addr((DEFAULT_REMOTE_ADDRESS, DEFAULT_REMOTE_PORT)), + "email_addr": DEFAULT_EMAIL_ADDRESS, + "smtp_addr": format_addr((DEFAULT_SMTP_HOST, DEFAULT_SMTP_PORT)), +} + +def parse_addr_spec(spec, defhost = None, defport = None): + host = None + port = None + af = 0 + m = None + # IPv6 syntax. + if not m: + m = re.match(ur'^[(.+)]:(\d*)$', spec) + if m: + host, port = m.groups() + af = socket.AF_INET6 + if not m: + m = re.match(ur'^[(.+)]$', spec) + if m: + host, = m.groups() + af = socket.AF_INET6 + # IPv4/hostname/port-only syntax. + if not m: + try: + host, port = spec.split(":", 1) + except ValueError: + host = spec + if re.match(ur'^[\d.]+$', host): + af = socket.AF_INET + else: + af = 0 + host = host or defhost + port = port or defport + if port is not None: + port = int(port) + return host, port + +def format_addr(addr): + host, port = addr + if not host: + return u":%d" % port + # Numeric IPv6 address? + try: + addrs = socket.getaddrinfo(host, port, 0, socket.SOCK_STREAM, socket.IPPROTO_TCP, socket.AI_NUMERICHOST) + af = addrs[0][0] + except socket.gaierror, e: + af = 0 + if af == socket.AF_INET6: + result = u"[%s]" % host + else: + result = "%s" % host + if port is not None: + result += u":%d" % port + return result + +options.remote_addr = (DEFAULT_REMOTE_ADDRESS, DEFAULT_REMOTE_PORT) +options.email_addr = DEFAULT_EMAIL_ADDRESS +options.smtp_addr = (DEFAULT_SMTP_HOST, DEFAULT_SMTP_PORT) + +opts, args = getopt.gnu_getopt(sys.argv[1:], "de:hs:", ["debug", "email=", "help", "smtp="]) +for o, a in opts: + if o == "-d" or o == "--debug": + options.debug = True + elif o == "-e" or o == "--email": + options.email_addr = parse_addr_spec(a, DEFAULT_FACILITATOR_HOST, DEFAULT_FACILITATOR_PORT) + elif o == "-h" or o == "--help": + usage() + sys.exit() + elif o == "-s" or o == "--smtp": + options.smtp_addr = parse_addr_spec(a, DEFAULT_SMTP_HOST, DEFAULT_SMTP_PORT) + +if len(args) == 0: + pass +elif len(args) == 1: + options.remote_addr = parse_addr_spec(args[0], DEFAULT_REMOTE_ADDRESS, DEFAULT_REMOTE_PORT) +else: + usage(sys.stderr) sys.exit(1) -client_spec = m.group(1)

-smtp.sendmail("hoddwee@gmail.com", "hoddwee@gmail.com", """\ -From: hoddwee@gmail.com -To: hoddwee@gmail.com -Subject: Flash proxy client registration +smtp = smtplib.SMTP(options.smtp_addr[0], options.smtp_addr[1], EHLO_FQDN) + +if options.debug: + smtp.set_debuglevel(1)

-client=%s -""" % client_spec) -smtp.quit() +try: + smtp.starttls() + smtp.ehlo() + + if not options.remote_addr[0]: + # Grep the EHLO response for our public IP address. + m = re.search(r'at your service, [([0-9a-fA-F.:]+)]', smtp.ehlo_resp) + if not m: + raise ValueError("Could not guess external IP address from EHLO response") + spec = m.group(1) + if ":" in spec: + # Guess IPv6. + spec = "[" + spec + "]" + options.remote_addr = parse_addr_spec(spec, *options.remote_addr) + + smtp.sendmail(options.email_addr, options.email_addr, """\ +To: %(to_addr)s\r +From: %(from_addr)s\r +Subject: client reg\r +\r +client=%(client_spec)s +""" % { + "to_addr": options.email_addr, + "from_addr": FROM_EMAIL_ADDRESS, + "client_spec": format_addr(options.remote_addr), + }) + smtp.quit() +except Exception, e: + print >> sys.stderr, "Failed to register: %s" % str(e) + sys.exit(1)

-print "Registered %s." % client_spec +print "Registered "%s" with %s." % (format_addr(options.remote_addr), options.email_addr)