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# -*- coding: utf-8 -*- |
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# |
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# Copyright © 2008 Red Hat, Inc. All rights reserved. |
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# Copyright © 2009 Mandriva. All rights reserved. |
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# |
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# This copyrighted material is made available to anyone wishing to use, modify, |
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# copy, or redistribute it subject to the terms and conditions of the GNU |
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# General Public License v.2. This program is distributed in the hope that it |
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# will be useful, but WITHOUT ANY WARRANTY expressed or implied, including the |
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# implied warranties of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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# See the GNU General Public License for more details. You should have |
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# received a copy of the GNU General Public License along with this program; if |
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# not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth |
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# Floor, Boston, MA 02110-1301, USA. Any Red Hat trademarks that are |
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# incorporated in the source code or documentation are not subject to the GNU |
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# General Public License and may only be used or replicated with the express |
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# permission of Red Hat, Inc. |
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# |
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# Author(s): Luke Macken <lmacken@redhat.com> |
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# Aurelien Lefebvre <alefebvre@mandriva.com> |
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# Luis Medinas <luis.medinas@caixamagica.pt> |
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|
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import subprocess |
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import logging |
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import os |
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import re |
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import signal |
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|
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from datetime import datetime |
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from stat import ST_SIZE |
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from threading import Thread |
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from time import sleep |
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|
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from liveusb import _ |
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|
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class LiveUSBError(Exception): |
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_message = "" |
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def __init__(self, message): self._message = message |
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def _get_message(self): return self._message |
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def _set_message(self, message): self._message = message |
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message = property(_get_message, _set_message) |
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|
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class LiveUSBCreator(object): |
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""" An OS-independent parent class for Live USB Creators """ |
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|
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iso = None |
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drives = {} |
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pids = [] |
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isosize = 0 |
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log = None |
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drive = None |
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|
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def __init__(self, opts): |
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self.opts = opts |
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self._setup_logger() |
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|
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def _setup_logger(self): |
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self.log = logging.getLogger(__name__) |
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level = logging.INFO |
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if self.opts.verbose: |
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level = logging.DEBUG |
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self.log.setLevel(level) |
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self.handler = logging.StreamHandler() |
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self.handler.setLevel(level) |
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formatter = logging.Formatter("[%(module)s:%(lineno)s] %(message)s") |
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self.handler.setFormatter(formatter) |
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self.log.addHandler(self.handler) |
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|
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def detect_removable_drives(self): |
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""" This method should populate self.drives with removable devices """ |
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raise NotImplementedError |
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|
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def terminate(self): |
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""" Terminate any subprocesses that we have spawned """ |
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raise NotImplementedError |
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|
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def set_iso(self, iso): |
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""" Select the given ISO """ |
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self.iso = self._to_unicode(iso) |
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self.isosize = os.stat(self.iso)[ST_SIZE] |
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|
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def _to_unicode(self, obj, encoding='utf-8'): |
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if hasattr(obj, 'toUtf8'): # PyQt4.QtCore.QString |
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obj = str(obj.toUtf8()) |
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#if isinstance(obj, basestring): |
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# if not isinstance(obj, unicode): |
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# obj = unicode(obj, encoding, 'replace') |
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return obj |
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|
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def _test_hybrid_1(self, iso): |
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hybrid = False |
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for i in range(0,512): |
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if not iso.read(1) == '\x00': |
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hybrid = True |
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if hybrid: |
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break |
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return hybrid |
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|
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def _test_hybrid_2(self, iso): |
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hybrid = False |
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iso.seek(0x1fe) |
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if iso.read(1) == '\x55': |
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iso.seek(0x1ff) |
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if iso.read(1) == '\xaa': |
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hybrid = True |
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return hybrid |
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|
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def _test_hybrid_3(self, iso): |
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hybrid = True |
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iso.seek(0x200) |
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for i in range(0x200,0x8000): |
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if iso.read(1) != '\x00': |
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hybrid = False |
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break |
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return hybrid |
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|
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def is_hybrid(self, iso): |
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isofile = open(iso, "rb") |
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hybrid = self._test_hybrid_1(isofile) and self._test_hybrid_2(isofile) and self._test_hybrid_3(isofile) |
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isofile.close() |
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return hybrid |
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|
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class LinuxLiveUSBCreator(LiveUSBCreator): |
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|
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bus = None # the dbus.SystemBus |
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hal = None # the org.freedesktop.Hal.Manager dbus.Interface |
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|
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def detect_removable_drives(self): |
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""" Detect all removable USB storage devices using HAL via D-Bus """ |
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import dbus |
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self.drives = {} |
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self.bus = dbus.SystemBus() |
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hal_obj = self.bus.get_object("org.freedesktop.Hal", |
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"/org/freedesktop/Hal/Manager") |
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self.hal = dbus.Interface(hal_obj, "org.freedesktop.Hal.Manager") |
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|
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devices = [] |
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devices = self.hal.FindDeviceByCapability("storage") |
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|
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for device in devices: |
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try: |
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dev = self._get_device(device) |
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if dev.GetProperty("storage.bus") == "usb": |
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self._add_device(dev) |
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except dbus.exceptions.DBusException: |
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pass |
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|
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if not len(self.drives): |
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raise LiveUSBError(_("Unable to find any USB drives")) |
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|
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def _add_device(self, dev, parent=None): |
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model = None |
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capacity = None |
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try: |
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model = dev.GetProperty('storage.model') |
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capacity = str(dev.GetProperty('storage.removable.media_size')) |
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except Exception: |
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pass |
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|
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self.drives[dev.GetProperty('block.device')] = { |
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'name' : dev.GetProperty('block.device'), |
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'model' : model, |
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'capacity' : capacity |
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} |
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|
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def _get_device(self, udi): |
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""" Return a dbus Interface to a specific HAL device UDI """ |
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import dbus |
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dev_obj = self.bus.get_object("org.freedesktop.Hal", udi) |
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return dbus.Interface(dev_obj, "org.freedesktop.Hal.Device") |
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|
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def build_disk(self, progress_thread): |
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|
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isosize = float(self.isosize) |
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pattern = "^([0-9]+) bytes .*" |
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patternCompiled = re.compile(pattern) |
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|
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pidPattern = "^DDPID=([0-9]+).*" |
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pidPatternCompiled = re.compile(pidPattern) |
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|
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drive_infos = self.drives[self.drive] |
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if drive_infos.has_key("capacity") and drive_infos["capacity"]: |
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self.log.debug("Iso size = %s" % str(isosize)) |
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self.log.debug("Device capacity = %s " % str(drive_infos['capacity'])) |
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if int(drive_infos['capacity']) < int(isosize): |
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raise LiveUSBError(_("Selected iso is too large for the selected device")) |
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|
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dd = '/usr/sbin/liveusb-dd.sh "' + self.iso + '" "' + self.drive + '"' |
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self.log.debug(dd) |
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p = subprocess.Popen(dd, |
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shell=True, |
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stdout=subprocess.PIPE, |
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stderr=subprocess.STDOUT, |
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env={"LC_ALL": "C"}) |
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|
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ppid = p.pid |
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ddpid = None |
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|
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self.pids.append(ppid) |
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|
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# Updating progress bar by parsing /bin/dd output |
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while True: |
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line = p.stdout.readline() |
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if not line: |
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break |
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|
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if not ddpid: |
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pidm = re.findall(pidPatternCompiled, line) |
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if len(pidm) > 0: |
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ddpid = int(pidm[0]) |
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self.pids.append(ddpid) |
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|
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m = re.findall(patternCompiled, line) |
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if len(m) > 0: |
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current = float(m[0]) |
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progress = (current/isosize)*100 |
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progress = round(progress, 2) |
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progress_thread.update(progress) |
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|
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self.pids.remove(ppid) |
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self.pids.remove(ddpid) |
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|
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def terminate(self): |
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for pid in self.pids: |
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try: |
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os.kill(pid, signal.SIGHUP) |
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self.log.debug("Killed process %d" % pid) |
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except OSError: |
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pass |
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|
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class WindowsLiveUSBCreator(LiveUSBCreator): |
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|
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def detect_removable_drives(self): |
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import win32file, win32api, pywintypes, wmi |
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self.drives = {} |
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|
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c = wmi.WMI() |
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|
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for physical_disk in c.Win32_DiskDrive (): |
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if physical_disk.InterfaceType == "USB": |
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if len(physical_disk.Capabilities): |
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for objElem in physical_disk.Capabilities: |
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if objElem == 7: |
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self.drives[physical_disk.DeviceID] = { |
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'name' : physical_disk.DeviceID, |
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'model' : physical_disk.Model, |
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'device' : physical_disk.DeviceID, |
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'capacity': physical_disk.Size |
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} |
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break |
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if not len(self.drives): |
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raise LiveUSBError(_("There isn't any removable drive available")) |
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|
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def _get_device(self, drive): |
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if not self.drives[drive]: |
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return None |
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return self.drives[drive]['device'] |
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|
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def build_disk(self, progress_thread): |
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|
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isosize = float(self.isosize) |
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pattern = "^([0-9,]+).*" |
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patternCompiled = re.compile(pattern) |
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|
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# f = subprocess.Popen(['format', self.drive, '/q', '/y', '/fs:fat32'], shell=True) |
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# self.log.debug("Formating %s" % self.drive) |
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# f.wait() |
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# self.log.debug("Done, exit code: %d" % f.wait()) |
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|
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dd = os.path.join("tools", "dd.exe") |
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dd += " bs=8M" + " if=\"%s\" of=%s --progress" % (self.iso, self._get_device(self.drive)) |
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self.log.debug(dd) |
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p = subprocess.Popen(dd, |
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shell=True, |
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stdout=subprocess.PIPE, |
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stderr=subprocess.STDOUT, |
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universal_newlines=True) |
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|
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ppid = p.pid |
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|
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self.pids.append(ppid) |
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|
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# Updating progress bar by parsing /bin/dd output |
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while True: |
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line = p.stdout.readline() |
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if not line: |
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break |
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|
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m = re.findall(patternCompiled, line) |
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if len(m) > 0: |
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current = float(re.sub(",", "", m[0])) |
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progress = (current/isosize)*100 |
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progress = round(progress, 2) |
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progress_thread.update(progress) |
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|
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self.pids.remove(ppid) |
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|
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def terminate(self): |
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""" Terminate any subprocesses that we have spawned """ |
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import win32api, win32con, pywintypes |
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for pid in self.pids: |
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try: |
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handle = win32api.OpenProcess(win32con.PROCESS_TERMINATE, |
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False, pid) |
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self.log.debug("Terminating process %s" % pid) |
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win32api.TerminateProcess(handle, -2) |
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win32api.CloseHandle(handle) |
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except pywintypes.error: |
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pass |
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