qira/middleware/qira.py

#!/usr/bin/env python2.7
import os
import sys
basedir = os.path.dirname(os.path.realpath(__file__))
import argparse
import ipaddr
import socket
import threading
import time

import qira_config
import qira_socat
import qira_program
import qira_webserver

if __name__ == '__main__':
  # define arguments
  parser = argparse.ArgumentParser(description = 'Analyze binary. Like "qira /bin/ls /"')
  parser.add_argument('-s', "--server", help="bind on port 4000. like socat", action="store_true")
  parser.add_argument('-t', "--tracelibraries", help="trace into all libraries", action="store_true")
  parser.add_argument('binary', help="path to the binary")
  parser.add_argument('args', nargs='*', help="arguments to the binary")
  parser.add_argument("--flush-cache", help="flush all QIRA caches", action="store_true")
  parser.add_argument("--dwarf", help="parse program dwarf data", action="store_true")
  if os.path.isdir(basedir+"/../cda"):
    parser.add_argument("--cda", help="use CDA to view source(implies dwarf)", action="store_true")
    parser.add_argument("--cda-only", help="use CDA to view source ONLY", action="store_true")
  parser.add_argument("--pin", help="use pin as the backend", action="store_true")
  parser.add_argument("--web-host", help="listen address for web interface. 127.0.0.1 by default", default=qira_config.WEB_HOST)
  parser.add_argument("--web-port", help="listen port for web interface. 3002 by default", type=int, default=qira_config.WEB_PORT)

  # parse arguments
  args = parser.parse_args()

  # validate arguments
  if args.web_port < 1 or args.web_port > 65535:
    raise Exception("--web-port must be a valid port number (1-65535)")
  try:
    args.web_host = ipaddr.IPAddress(args.web_host).exploded
  except ValueError:
    raise Exception("--web-host must be a valid IPv4/IPv6 address")

  # handle arguments
  if sys.argv[0][-3:] == "cda":
    print "*** called as cda, not running QIRA"
    args.cda_only = True

  qira_config.WEB_HOST = args.web_host
  qira_config.WEB_PORT = args.web_port
  qira_config.USE_PIN = args.pin
  if args.tracelibraries:
    qira_config.TRACE_LIBRARIES = True
  if args.dwarf:
    qira_config.WITH_DWARF = True
  try:
    if args.cda or args.cda_only:
      qira_config.WITH_CDA = True
      qira_config.WITH_DWARF = True
  except:
    pass
  if args.flush_cache:
    print "*** flushing caches"
    os.system("rm -rfv /tmp/qira*")

  # creates the file symlink, program is constant through server run
  program = qira_program.Program(args.binary, args.args)

  is_qira_running = 1
  try:
    socket.create_connection(('127.0.0.1', qira_config.WEB_PORT))
    if args.server:
      raise Exception("can't run as server if QIRA is already running")
  except:
    is_qira_running = 0
    print "no qira server found, starting it"
    program.clear()

  # start the binary runner
  if not args.cda_only:
    if args.server:
      qira_socat.start_bindserver(program, qira_config.SOCAT_PORT, -1, 1, True)
    else:
      print "**** running "+program.program
      program.execqira(shouldfork=not is_qira_running)

  if not is_qira_running:
    # start the http server
    qira_webserver.run_server(args, program)