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Root/GitsoThread.py

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#! /usr/bin/env python
 
"""
Gisto - Gitso is to support others
 
Gitso is a utility to facilitate the connection of VNC
 
@author: Aaron Gerber ('gerberad') <gerberad@gmail.com>
@author: Derek Buranen ('burner') <derek@buranen.info>
@copyright: 2008 - 2010
 
Gitso 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.
 
Gitso 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 Gitso.  If not, see <http://www.gnu.org/licenses/>.
"""
 
import threading, time
import os, sys, signal, os.path, re
import Processes
 
if sys.platform == 'darwin' or re.match('(?:open|free|net)bsd|linux',sys.platform):
    import NATPMP
 
class GitsoThread(threading.Thread):
    def __init__(self, window, paths):
        self.window  = window
        self.paths   = paths
        self.host    = ""
        self.error   = False
        self.pid     = 0
        self.running = True
        self.process = Processes.Processes(self.window, paths)
        threading.Thread.__init__(self)
         
         
    def run(self):
        """
        This is where the beef is. Start the processes and check on them.
         
        @author: Aaron Gerber
        """
        if self.host <> "":
            # Get Help
            self.pid = self.process.getSupport(self.host)
            time.sleep(.5)
            if self.checkStatus():
                self.window.setMessage("Connected.", True)
            else:
                self.window.setMessage("Could not connect.", False)
                self.error = True
        else:
            # Give Support
            if sys.platform == 'darwin' or re.match('(?:open|free|net)bsd|linux',sys.platform):
                if self.window.enablePMP:
                    self.window.cb1.Enable(False)
                    if self.window.cb1.GetValue() == True:
                        self.NATPMP('request')
             
            self.pid = self.process.giveSupport()
            time.sleep(.5)
            if self.checkStatus():
                self.window.setMessage("Server running.", True)
            else:
                self.window.setMessage("Could not start server.", False)
                self.error = True
 
        print "GitsoThread.run(pid: " + str(self.pid) + ") running..."
 
        while(self.running and self.checkStatus()):
            time.sleep(.2)
 
        if not self.error:
            self.window.setMessage("Idle.", False)
 
        self.kill()
 
         
    def setHost(self, host=""):
        """
        Set the object variable.
         
        @author: Aaron Gerber
        """
        self.host = host
         
         
    def kill(self):
        """
        Kill the process and general clean-up.
         
        @author: Aaron Gerber
        """
        if sys.platform == 'darwin' or re.match('(?:open|free|net)bsd|linux',sys.platform):
            if self.window.enablePMP:
                if self.window.rb1.GetValue() == False: #give support
                    if self.window.cb1.GetValue() == True:
                        self.NATPMP('giveup')
                    self.window.cb1.Enable(True)
     
        self.process.KillPID()
        self.pid = 0
        self.running = False
 
 
    def checkStatus(self):
        """
        Check the status of the underlying process.
         
        @author: Aaron Gerber
        """
        if self.pid == 0:
            return False
         
        connection = []
        listen = []
        if sys.platform == 'darwin' or re.match('(?:open|free|net)bsd|linux',sys.platform):
            if self.host <> "":
                connection = os.popen('LANG=C netstat -an | grep 5500 | grep ESTABLISHED').readlines()
            else:
                listen = os.popen('LANG=C netstat -an | grep 5500 | grep LISTEN').readlines()
        elif sys.platform == 'win32':
            #XP PRO only -- Need to fix the case where there is no process, it'll still return 1 line.
            #info = os.popen('WMIC PROCESS ' + str(self.pid) + ' get Processid').readlines()
            if self.host <> "":
                connection = os.popen('netstat -a | find "ESTABLISHED" | find "5500"').readlines()
            else:
                listen = os.popen('netstat -a | find "LISTEN" | find "5500"').readlines()
        else:
            print 'Platform not detected'
         
        if len(connection) == 0 and len(listen) == 0:
            return False
        else:
            return True
 
 
    def NATPMP(self, action):
        """
        Call NAT-PMP on router to get port 5500 forwarded.
         
        @author: Dennis Koot
        """
        if sys.platform == 'darwin' or re.match('(?:open|free|net)bsd|linux',sys.platform):
            if self.window.enablePMP:
                if action == 'request':
                    lifetime = 3600
                    print "Request port 5500 (NAT-PMP)."
                else:
                    lifetime = 0
                    print "Give up port 5500 (NAT-PMP)."
         
                pubpriv_port = int(5500)
                protocol = NATPMP.NATPMP_PROTOCOL_TCP
                 
                try:
                    gateway = NATPMP.get_gateway_addr()
                    print NATPMP.map_port(protocol, pubpriv_port, pubpriv_port, lifetime, gateway_ip=gateway)
                except:
                    print "Warning: Unable to automap port."

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