#!/usr/bin/env python

# Copyright (C) 2010  Aldo Cortesi
# 
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import sys, os.path
from libmproxy import proxy, dump, utils
from libmproxy import VERSION


from optparse import OptionParser, OptionGroup


if __name__ == '__main__':
    parser = OptionParser(
                usage = "%prog [options] [filter]",
                version="%%prog %s"%VERSION,
            )
    proxy.certificate_option_group(parser)
    parser.add_option(
        "-p", action="store",
        type = "int", dest="port", default=8080,
        help = "Proxy service port."
    )
    parser.add_option("-c", 
                      action="store_true", dest="stickycookie_all", default=None,
                      help="Set sticky cookie for all requests.")
    parser.add_option("-C",
                      action="store", dest="stickycookie_filt", default=None, metavar="FILTER",
                      help="Set sticky cookie filter. Matched against requests.")
    parser.add_option("-q", 
                      action="store_true", dest="quiet",
                      help="Quiet.")
    parser.add_option("--reqscript",
                      action="store", dest="request_script", default=None,
                      help="Script to run when a request is recieved.")
    parser.add_option("--respscript",
                      action="store", dest="response_script", default=None,
                      help="Script to run when a response is recieved.")
    parser.add_option("-v", 
                      action="count", dest="verbose", default=1,
                      help="Increase verbosity. Can be passed multiple times.")
    parser.add_option("-w", 
                      action="store", dest="wfile", default=None,
                      help="Write flows to file.")


    group = OptionGroup(parser, "Server Replay")
    group.add_option("-r", action="store", dest="server_replay", default=None, metavar="PATH",
                      help="Replay server responses from a saved file.")
    group.add_option("-k", "--kill",
                      action="store_true", dest="kill", default=False,
                      help="Kill extra requests during replay.")
    group.add_option("--rheader",
                      action="append", dest="rheaders", type="str",
                      help="Request headers to be considered during replay. "
                           "Can be passed multiple times.")
    parser.add_option_group(group)



    options, args = parser.parse_args()

    if options.quiet:
        options.verbose = 0

    stickycookie = None
    if options.stickycookie_all:
        stickycookie = ".*"
    elif options.stickycookie_filt:
        stickycookie = stickycookie_filt

    config = proxy.process_certificate_option_group(parser, options)
    server = proxy.ProxyServer(config, options.port)
    dumpopts = dump.Options(
        verbosity = options.verbose,
        wfile = options.wfile,
        request_script = options.request_script,
        response_script = options.response_script,
        server_replay = options.server_replay,
        kill = options.kill,
        rheaders = options.rheaders,
        stickycookie = stickycookie
    )
    if args:
        filt = " ".join(args)
    else:
        filt = None

    if options.verbose > 0:
        print >> sys.stderr, "Running on port %s"%options.port

    try:
        m = dump.DumpMaster(server, dumpopts, filt)
        m.run()
    except dump.DumpError, e:
        print >> sys.stderr, "mitmdump:", e
        sys.exit(1)
    except KeyboardInterrupt:
        pass