# -*- coding: utf-8 -*- # # Copyright (c) 2014 Virtual Cable S.L. # All rights reserved. # # Redistribution and use in source and binary forms, with or without modification, # are permitted provided that the following conditions are met: # # * Redistributions of source code must retain the above copyright notice, # this list of conditions and the following disclaimer. # * Redistributions in binary form must reproduce the above copyright notice, # this list of conditions and the following disclaimer in the documentation # and/or other materials provided with the distribution. # * Neither the name of Virtual Cable S.L. nor the names of its contributors # may be used to endorse or promote products derived from this software # without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE # DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR # SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ''' @author: Adolfo Gómez, dkmaster at dkmon dot com ''' from __future__ import unicode_literals import socket import platform import fcntl import os import ctypes # @UnusedImport import ctypes.util import subprocess import struct import array import six from opengnsys import utils from .renamer import rename def _getMacAddr(ifname): ''' Returns the mac address of an interface Mac is returned as unicode utf-8 encoded ''' if isinstance(ifname, list): return dict([(name, _getMacAddr(name)) for name in ifname]) if isinstance(ifname, six.text_type): ifname = ifname.encode('utf-8') # If unicode, convert to bytes (or str in python 2.7) try: s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) info = bytearray(fcntl.ioctl(s.fileno(), 0x8927, struct.pack(str('256s'), ifname[:15]))) return six.text_type(''.join(['%02x:' % char for char in info[18:24]])[:-1]) except Exception: return None def _getIpAddr(ifname): ''' Returns the ip address of an interface Ip is returned as unicode utf-8 encoded ''' if isinstance(ifname, list): return dict([(name, _getIpAddr(name)) for name in ifname]) if isinstance(ifname, six.text_type): ifname = ifname.encode('utf-8') # If unicode, convert to bytes (or str in python 2.7) try: s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) return six.text_type(socket.inet_ntoa(fcntl.ioctl( s.fileno(), 0x8915, # SIOCGIFADDR struct.pack(str('256s'), ifname[:15]) )[20:24])) except Exception: return None def _getInterfaces(): ''' Returns a list of interfaces names coded in utf-8 ''' max_possible = 128 # arbitrary. raise if needed. space = max_possible * 16 if platform.architecture()[0] == '32bit': offset, length = 32, 32 elif platform.architecture()[0] == '64bit': offset, length = 16, 40 else: raise OSError('Unknown arquitecture {0}'.format(platform.architecture()[0])) s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) names = array.array(str('B'), b'\0' * space) outbytes = struct.unpack(str('iL'), fcntl.ioctl( s.fileno(), 0x8912, # SIOCGIFCONF struct.pack(str('iL'), space, names.buffer_info()[0]) ))[0] namestr = names.tostring() # return namestr, outbytes return [namestr[i:i + offset].split(b'\0', 1)[0].decode('utf-8') for i in range(0, outbytes, length)] def _getIpAndMac(ifname): ip, mac = _getIpAddr(ifname), _getMacAddr(ifname) return (ip, mac) def getComputerName(): ''' Returns computer name, with no domain ''' return socket.gethostname().split('.')[0] def getNetworkInfo(): ''' Obtains a list of network interfaces @return: A "generator" of elements, that are dict-as-object, with this elements: name: Name of the interface mac: mac of the interface ip: ip of the interface ''' for ifname in _getInterfaces(): ip, mac = _getIpAndMac(ifname) if mac != '00:00:00:00:00:00': # Skips local interfaces yield utils.Bunch(name=ifname, mac=mac, ip=ip) def getDomainName(): return '' def getLinuxVersion(): lv = platform.linux_distribution() return lv[0] + ', ' + lv[1] def reboot(flags=0): ''' Simple reboot using os command ''' # Workaround for dummy thread if six.PY3 is False: import threading threading._DummyThread._Thread__stop = lambda x: 42 # Check for OpenGnsys Client or GNU/Linux distribution. if os.path.exists('/scripts/oginit'): subprocess.call('source /opt/opengnsys/etc/preinit/loadenviron.sh; /opt/opengnsys/scripts/reboot', shell=True) else: subprocess.call(['/sbin/reboot']) def poweroff(flags=0): ''' Simple poweroff using os command ''' # Workaround for dummy thread if six.PY3 is False: import threading threading._DummyThread._Thread__stop = lambda x: 42 # Check for OpenGnsys Client or GNU/Linux distribution. if os.path.exists('/scripts/oginit'): subprocess.call('source /opt/opengnsys/etc/preinit/loadenviron.sh; /opt/opengnsys/scripts/poweroff', shell=True) else: subprocess.call(['/sbin/poweroff']) def logoff(): ''' Kills all curent user processes, which must send a logogof caveat: If the user has other sessions, will also disconnect from them ''' # Workaround for dummy thread if six.PY3 is False: import threading threading._DummyThread._Thread__stop = lambda x: 42 subprocess.call(['/usr/bin/pkill', '-u', os.environ['USER']]) def renameComputer(newName): rename(newName) def joinDomain(domain, ou, account, password, executeInOneStep=False): pass def changeUserPassword(user, oldPassword, newPassword): ''' Simple password change for user using command line ''' os.system('echo "{1}\n{1}" | /usr/bin/passwd {0} 2> /dev/null'.format(user, newPassword)) class XScreenSaverInfo(ctypes.Structure): _fields_ = [('window', ctypes.c_long), ('state', ctypes.c_int), ('kind', ctypes.c_int), ('til_or_since', ctypes.c_ulong), ('idle', ctypes.c_ulong), ('eventMask', ctypes.c_ulong)] # Initialize xlib & xss try: xlibPath = ctypes.util.find_library('X11') xssPath = ctypes.util.find_library('Xss') xlib = ctypes.cdll.LoadLibrary(xlibPath) xss = ctypes.cdll.LoadLibrary(xssPath) # Fix result type to XScreenSaverInfo Structure xss.XScreenSaverQueryExtension.restype = ctypes.c_int xss.XScreenSaverAllocInfo.restype = ctypes.POINTER(XScreenSaverInfo) # Result in a XScreenSaverInfo structure except Exception: # Libraries not accesible, not found or whatever.. xlib = xss = None def initIdleDuration(atLeastSeconds): ''' On linux we set the screensaver to at least required seconds, or we never will get "idle" ''' # Workaround for dummy thread if six.PY3 is False: import threading threading._DummyThread._Thread__stop = lambda x: 42 subprocess.call(['/usr/bin/xset', 's', '{}'.format(atLeastSeconds + 30)]) # And now reset it subprocess.call(['/usr/bin/xset', 's', 'reset']) def getIdleDuration(): ''' Returns idle duration, in seconds ''' if xlib is None or xss is None: return 0 # Libraries not available # production code might want to not hardcode the offset 16... display = xlib.XOpenDisplay(None) event_base = ctypes.c_int() error_base = ctypes.c_int() available = xss.XScreenSaverQueryExtension(display, ctypes.byref(event_base), ctypes.byref(error_base)) if available != 1: return 0 # No screen saver is available, no way of getting idle info = xss.XScreenSaverAllocInfo() xss.XScreenSaverQueryInfo(display, xlib.XDefaultRootWindow(display), info) if info.contents.state != 0: return 3600 * 100 * 1000 # If screen saver is active, return a high enough value return info.contents.idle / 1000.0 def getCurrentUser(): ''' Returns current logged in user ''' return os.environ['USER'] def showPopup(title, message): ''' Displays a message box on user's session (during 1 min). ''' return subprocess.call('zenity --info --timeout 60 --title "{}" --text "{}"'.format(title, message), shell=True)