#!/usr/bin/env python
import sys, signal
from libmproxy import proxy, dump, cmdline
from libmproxy.proxy.config import process_proxy_options
from libmproxy.proxy.primitives import ProxyServerError
from libmproxy.proxy.server import DummyServer, ProxyServer
import libmproxy.version, netlib.version
import argparse

if __name__ == '__main__':
    # We don't introduce backward-incompatible changes in patch versions. Only consider major and minor version.
    if netlib.version.IVERSION[:2] != libmproxy.version.IVERSION[:2]:
        print >> sys.stderr, ("warning: You are using mitmdump %s with netlib %s. "
                              "Most likely, that doesn't work - please upgrade!") % (libmproxy.version.VERSION,
                                                                                     netlib.version.VERSION)
    parser = argparse.ArgumentParser(usage = "%(prog)s [options] [filter]")
    parser.add_argument('--version', action='version', version="mitmdump" + " " + libmproxy.version.VERSION)
    cmdline.common_options(parser)
    parser.add_argument(
        "--keepserving",
        action="store_true", dest="keepserving", default=False,
        help="Continue serving after client playback or file read. We exit by default."
    )
    parser.add_argument(
        "-d",
        action="count", dest="flow_detail", default=1,
        help="Increase flow detail display level. Can be passed multiple times."
    )
    parser.add_argument('args', nargs=argparse.REMAINDER)

    options = parser.parse_args()

    if options.quiet:
        options.verbose = 0
        options.flow_detail = 0

    proxyconfig = process_proxy_options(parser, options)
    if options.no_server:
        server = DummyServer(proxyconfig)
    else:
        try:
            server = ProxyServer(proxyconfig, options.port, options.addr)
        except ProxyServerError, v:
            print >> sys.stderr, "mitmdump:", v.args[0]
            sys.exit(1)

    dumpopts = dump.Options(**cmdline.get_common_options(options))
    dumpopts.flow_detail = options.flow_detail
    dumpopts.keepserving = options.keepserving

    if options.args:
        filt = " ".join(options.args)
    else:
        filt = None

    try:
        m = dump.DumpMaster(server, dumpopts, filt)
        def cleankill(*args, **kwargs):
            m.shutdown()
        signal.signal(signal.SIGTERM, cleankill)
        m.run()
    except dump.DumpError, e:
        print >> sys.stderr, "mitmdump:", e
        sys.exit(1)
    except KeyboardInterrupt:
        pass