# Copyright (C) 2010-2012 Cuckoo Sandbox Developers.
# This file is part of Cuckoo Sandbox - http://www.cuckoosandbox.org
# See the file 'docs/LICENSE' for copying permission.

import os
import time
import logging
import subprocess
import os.path

from lib.cuckoo.common.abstracts import MachineManager
from lib.cuckoo.common.exceptions import CuckooMachineError

log = logging.getLogger(__name__)

class VMWare(MachineManager):
    """Virtualization layer for VMWare."""

    def _initialize_check(self):
        """Runs all checks when a machine manager is initialized.
            @raise CuckooMachineError: if VBoxManage is not found.
            """
        # VMWare specific checks.
        if not self.options.vmware.path:
            raise CuckooMachineError("VMWare vmrun path missing, please add it to configuration")
        if not os.path.exists(self.options.vmware.path):
            raise CuckooMachineError("VMWare vmrun not found in specified path %s" % self.options.vmware.path)
        # Base checks.
        super(VMWare, self)._initialize_check()
    
    def start(self, label):
        """Start a virtual machine.
            @param label: virtual machine snapshot.
            @raise CuckooMachineError: if unable to start.
            """
        try:
            if subprocess.call([self.options.vmware.path, 
									"-h", self.options.vmware.host,
									"-u", self.options.vmware.user, "-p", self.options.vmware.passwd,
                                    "revertToSnapshot", 
                                    label, 
                                    "current"],
                                   stdout=subprocess.PIPE,
                                   stderr=subprocess.PIPE):
                raise CuckooMachineError("vmrun exited with error restoring the machine's snapshot")
        except OSError as e:
            raise CuckooMachineError("vmrun failed restoring the machine: %s" % e.message)
        try:
            subprocess.Popen([self.options.vmware.path,
							  "-T", "vc",
							  "-h", self.options.vmware.host,
							  "-u", self.options.vmware.user, "-p", self.options.vmware.passwd,
                              "start",
                              label],
                             stdout=subprocess.PIPE,
                             stderr=subprocess.PIPE)
            print " started"
        except OSError as e:
            raise CuckooMachineError("VMWare vmrun failed starting the machine in %s mode: %s"
                                     % (mode.upper(), e.message))
    
    def stop(self, label):
        """Stops a virtual machine.
            @param label: virtual machine name.
            @raise CuckooMachineError: if unable to stop.
            """
        try:
            if subprocess.call([self.options.vmware.path, 
								"-h", self.options.vmware.host,
								"-u", self.options.vmware.user, "-p", self.options.vmware.passwd,
                                "stop", 
                                label],
                               stdout=subprocess.PIPE,
                               stderr=subprocess.PIPE):
                raise CuckooMachineError("vmrun exited with error powering off the machine")
        except OSError as e:
            raise CuckooMachineError("vmrun failed powering off the machine: %s" % e.message)
        
        time.sleep(3)
        
        try:
            if subprocess.call([self.options.vmware.path, 
								"-h", self.options.vmware.host,
								"-u", self.options.vmware.user, "-p", self.options.vmware.passwd,
                                "revertToSnapshot", 
                                label,
                                "current"],
                               stdout=subprocess.PIPE,
                               stderr=subprocess.PIPE):
                raise CuckooMachineError("vmrun exited with error restoring the machine's snapshot")
        except OSError as e:
            raise CuckooMachineError("vmrun failed restoring the machine: %s" % e.message)
    '''            
			def _list(self):
        """Lists virtual machines installed.
            @return: virtual machine names list.
            """
        try:
            proc = subprocess.Popen([self.options.vmware.path, "listSnapshots", label],
                                    stdout=subprocess.PIPE,
                                    stderr=subprocess.PIPE)
            print proc
            output = proc.communicate()
        except OSError as e:
            raise CuckooMachineError("vmrun error listing installed machines: %s" % e.message)
        
        machines = []
        for line in output[0].split("\n"):
            try:
                label = line.split('"')[1]
                if label == "<inaccessible>":
                    log.warning("Found an inaccessible vitual machine: please check his state")
                else:
                    machines.append(label)
            except IndexError:
                continue
        
        return machines
    '''

.