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284 lines
9.4 KiB
Python
284 lines
9.4 KiB
Python
import logging
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import logging.handlers
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import os
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import platform
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import queue
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import shutil
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import signal
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import subprocess
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import sys
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import time
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def log(message, info=True, error=False, debug=False, _print=True):
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"""
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Dirty function to log messages to file and also print on screen.
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:param message:
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:param info:
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:param error:
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:param debug:
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:return:
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"""
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if _print is True:
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print(message)
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# remove ANSI color codes from logs
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# message_clean = re.compile(r'\x1b[^m]*m').sub('', message)
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if info is True:
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logging.info(message)
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elif error is not False:
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logging.error(message)
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elif debug is not False:
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logging.debug(message)
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def resource_path(relativePath):
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"""
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Function to detect the correct path of file when working with sourcecode/install or binary.
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:param relativePath: Path to file/data.
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:return: Modified path to file/data.
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"""
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# This is not strictly needed because Windows recognize '/'
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# as a path separator but we follow the discipline here.
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relativePath = relativePath.replace('/', os.sep)
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for dir_ in [
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os.path.abspath('.'),
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os.path.abspath('..'),
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getattr(sys, '_MEIPASS', None),
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os.path.dirname(os.path.dirname( # go up two levels
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os.path.realpath(__file__))),
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'/usr/share/multibootusb'.replace('/', os.sep),
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]:
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if dir_ is None:
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continue
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fullpath = os.path.join(dir_, relativePath)
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if os.path.exists(fullpath):
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return fullpath
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log("Could not find resource '%s'." % relativePath)
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def get_physical_disk_number(usb_disk):
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"""
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Get the physical disk number as detected ny Windows.
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:param usb_disk: USB disk (Like F:)
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:return: Disk number.
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"""
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import pythoncom
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pythoncom.CoInitialize()
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partition, logical_disk = wmi_get_drive_info(usb_disk)
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log("Physical Device Number is %d" % partition.DiskIndex)
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return partition.DiskIndex
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def wmi_get_drive_info(usb_disk):
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assert platform.system() == 'Windows'
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import wmi
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c = wmi.WMI()
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for partition in c.Win32_DiskPartition():
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logical_disks = partition.associators("Win32_LogicalDiskToPartition")
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# Here, 'disk' is a windows logical drive rather than a physical drive
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for disk in logical_disks:
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if disk.Caption == usb_disk:
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return (partition, disk)
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raise RuntimeError('Failed to obtain drive information ' + usb_disk)
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def wmi_get_drive_info_ex(usb_disk):
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assert platform.system() == 'Windows'
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partition, disk = wmi_get_drive_info(usb_disk)
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#print (disk.Caption, partition.StartingOffset, partition.DiskIndex,
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# disk.FileSystem, disk.VolumeName)
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# Extract Volume serial number off of the boot sector because
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# retrieval via COM object 'Scripting.FileSystemObject' or wmi interface
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# truncates NTFS serial number to 32 bits.
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with open('//./Physicaldrive%d'%partition.DiskIndex, 'rb') as f:
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f.seek(int(partition.StartingOffset))
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bs_ = f.read(512)
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serial_extractor = {
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'NTFS' : lambda bs: \
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''.join('%02X' % c for c in reversed(bs[0x48:0x48+8])),
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'FAT32' : lambda bs: \
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'%02X%02X-%02X%02X' % tuple(
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map(int,reversed(bs[67:71])))
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}.get(disk.FileSystem, lambda bs: None)
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uuid = serial_extractor(bs_)
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mount_point = usb_disk + '\\'
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size_total, size_used, size_free \
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= shutil.disk_usage(mount_point)[:3]
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r = {
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'uuid' : uuid,
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'file_system' : disk.FileSystem,
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'label' : disk.VolumeName.strip() or 'No_label',
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'mount_point' : mount_point,
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'size_total' : size_total,
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'size_used' : size_used,
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'size_free' : size_free,
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'vendor' : 'Not_Found',
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'model' : 'Not_Found',
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'devtype' : {
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0 : 'Unknown',
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1 : 'Fixed Disk',
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2 : 'Removable Disk',
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3 : 'Local Disk',
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4 : 'Network Drive',
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5 : 'Compact Disc',
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6 : 'RAM Disk',
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}.get(disk.DriveType, 'DiskType(%d)' % disk.DriveType),
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'disk_index' : partition.DiskIndex,
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}
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# print (r)
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return r
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class Base:
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def run_dd(self, input, output, bs, count):
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cmd = [self.dd_exe, 'if='+input, 'of='+output,
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'bs=%d' % bs, 'count=%d'%count]
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self.dd_add_args(cmd, input, output, bs, count)
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if subprocess.call(cmd) != 0:
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log('Failed to execute [%s]' % str(cmd))
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else:
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log("%s succeeded." % str(cmd))
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def dd_iso_image(self, input_, output, gui_update):
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in_file_size = os.path.getsize(input_)
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cmd = [self.dd_exe, 'if=' + input_,
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'of=' + self.physical_disk(output), 'bs=1M']
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self.dd_iso_image_add_args(cmd, input_, output)
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log('Executing => ' + str(cmd))
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kw_args = {
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'stdout' : subprocess.PIPE,
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'stderr' : subprocess.PIPE,
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'shell' : False,
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}
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self.add_dd_iso_image_popen_args(kw_args)
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dd_process = subprocess.Popen(cmd, **kw_args)
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errors = queue.Queue()
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while dd_process.poll() is None:
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self.dd_iso_image_readoutput(dd_process, gui_update, in_file_size,
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errors)
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error_list = [errors.get() for i in range(errors.qsize())]
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return self.dd_iso_image_interpret_result(
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dd_process.returncode, error_list)
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class Windows(Base):
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def __init__(self):
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self.dd_exe = resource_path('data/tools/dd/dd.exe')
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def dd_add_args(self, cmd_vec, input, output, bs, count):
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pass
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def dd_iso_image_add_args(self, cmd_vec, input_, output):
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cmd_vec.append('--progress')
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def add_dd_iso_image_popen_args(self, dd_iso_image_popen_args):
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dd_iso_image_popen_args['universal_newlines'] = True
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def dd_iso_image_readoutput(self, dd_process, gui_update, in_file_size,
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error_log):
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for line in iter(dd_process.stderr.readline, ''):
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line = line.strip()
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if line:
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l = line.replace(',', '')
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if l[-1:] == 'M':
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bytes_copied = float(l.rstrip('M')) * 1024 * 1024
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elif l.isdigit():
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bytes_copied = float(l)
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else:
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if 16 < error_log.qsize():
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error_log.get()
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error_log.put(line)
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continue
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gui_update(bytes_copied / in_file_size * 100.)
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continue
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# Now the 'dd' process should have completed or going to soon.
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def dd_iso_image_interpret_result(self, returncode, error_list):
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# dd.exe always returns 0
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if any([ 'invalid' in s or 'error' in s for s
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in [l.lower() for l in error_list] ]):
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return '\n'.join(error_list)
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else:
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return None
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def physical_disk(self, usb_disk):
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return r'\\.\physicaldrive%d' % get_physical_disk_number(usb_disk)
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def mbusb_log_file(self):
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return os.path.join(os.getcwd(), 'multibootusb.log')
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class Linux(Base):
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def __init__(self):
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self.dd_exe = 'dd'
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def dd_add_args(self, cmd_vec, input, output, bs, count):
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cmd_vec.append('conv=notrunc')
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def dd_iso_image_add_args(self, cmd_vec, input_, output):
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cmd_vec.append('oflag=sync')
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def add_dd_iso_image_popen_args(self, dd_iso_image_popen_args):
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pass
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def dd_iso_image_readoutput(self, dd_process, gui_update, in_file_size,
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error_log):
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# If this time delay is not given, the Popen does not execute
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# the actual command
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time.sleep(0.1)
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dd_process.send_signal(signal.SIGUSR1)
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dd_process.stderr.flush()
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while True:
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time.sleep(0.1)
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out_error = dd_process.stderr.readline().decode()
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if out_error:
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if 'bytes' in out_error:
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bytes_copied = float(out_error.split(' ', 1)[0])
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gui_update( bytes_copied / in_file_size * 100. )
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break
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if 16 < error_log.qsize():
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error_log.get()
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error_log.put(out_error)
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else:
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# stderr is closed
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break
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def dd_iso_image_interpret_result(self, returncode, error_list):
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return None if returncode==0 else '\n'.join(error_list)
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def physical_disk(self, usb_disk):
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return usb_disk.rstrip('0123456789')
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def mbusb_log_file(self):
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return '/var/log/multibootusb.log'
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driverClass = {
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'Windows' : Windows,
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'Linux' : Linux,
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}.get(platform.system(), None)
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if driverClass is None:
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raise Exception('Platform [%s] is not supported.' % platform.system())
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osdriver = driverClass()
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for func_name in [
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'run_dd',
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'physical_disk',
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'mbusb_log_file',
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'dd_iso_image',
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]:
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globals()[func_name] = getattr(osdriver, func_name)
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def init_logging():
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logging.root.setLevel(logging.DEBUG)
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fmt = '%(asctime)s.%(msecs)03d %(name)s %(levelname)s %(message)s'
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datefmt = '%H:%M:%S'
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the_handler = logging.handlers.RotatingFileHandler(
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osdriver.mbusb_log_file(), 'a', 1024*1024, 5)
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the_handler.setFormatter(logging.Formatter(fmt, datefmt))
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logging.root.addHandler(the_handler)
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