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191 lines
6.7 KiB
Python
191 lines
6.7 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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# Name: imager.py
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# Purpose: Module to write ISO image to selected USB disk. Uses dd as backend.
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# Authors: Sundar
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# Licence: This file is a part of multibootusb package. You can redistribute it or modify
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# under the terms of GNU General Public License, v.2 or above
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# WARNING : Any boot-able USB made using this module will destroy data stored on USB disk.
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import collections
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import io
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import os
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import platform
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import signal
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import time
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import subprocess
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import traceback
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from PyQt5 import QtWidgets
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from .gui.ui_multibootusb import Ui_MainWindow
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from .gen import *
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from . import config
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from . import iso
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from . import osdriver
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from . import progressbar
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from . import osdriver
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from . import usb
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if platform.system() == "Windows":
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import win32com.client
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def dd_iso_image(dd_progress_thread):
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try:
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dd_progress_thread.set_error(None)
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_dd_iso_image(dd_progress_thread)
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except:
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# config.imager_return = False
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o = io.StringIO()
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traceback.print_exc(None, o)
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log(o.getvalue())
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dd_progress_thread.set_error(o.getvalue())
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def _dd_iso_image(dd_progress_thread):
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pbar = progressbar.ProgressBar(
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maxval=100,
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widgets=[
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' ',
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progressbar.widgets.Bar(marker='=', left='[', right=']'),
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' ',
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progressbar.widgets.Percentage()
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]
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).start()
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def gui_update(percentage):
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config.imager_percentage = percentage
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pbar.update(percentage)
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def status_update(text):
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config.status_text = text
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mounted_partitions = osdriver.find_mounted_partitions_on(config.usb_disk)
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unmounted = []
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try:
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for x in mounted_partitions:
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partition_dev, mount_point = x[:2]
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c = usb.UnmountedContext(partition_dev, config.update_usb_mount)
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c.__enter__()
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unmounted.append((c, partition_dev))
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error = osdriver.dd_iso_image(
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config.image_path, config.usb_disk, gui_update, status_update)
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if error:
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dd_progress_thread.set_error(error)
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log('Error writing iso image...')
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# config.imager_return = False
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else:
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log('ISO has been written to USB disk...')
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# config.imager_return = True
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finally:
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for c, partition_dev in unmounted:
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c.__exit__(None, None, None)
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class Imager(QtWidgets.QMainWindow, Ui_MainWindow):
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"""
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Raw write to USB disk using dd.
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"""
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def __init__(self):
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QtWidgets.QMainWindow.__init__(self)
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self.ui = Ui_MainWindow()
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self.ui.setupUi(self)
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def add_iso_gui_label_text(self):
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"""
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Simple function to add text label to GUI widgets.
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:return:
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"""
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log("Testing ISO...")
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self.ui.imager_bootable.setVisible(True)
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if iso.is_bootable(config.image_path) is True:
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self.ui.imager_bootable.setText("Bootable ISO: Yes")
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log("ISO is bootable.")
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else:
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self.ui.imager_bootable.setText("Bootable ISO: No")
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log("ISO is not bootable.")
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if os.path.exists(config.image_path):
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log("Path " + config.image_path + " exists...")
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self.iso_size = str(round(os.path.getsize(config.image_path) / 1024 / 1024))
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self.ui.imager_iso_size.setVisible(True)
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self.ui.imager_iso_size.setText("ISO Size: " + self.iso_size + " MB")
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log("ISO Size is " + self.iso_size + " MB")
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@staticmethod
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def imager_list_usb(partition=1):
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"""
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Function to detect whole USB disk. It uses lsblk package on Linux.
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:param partition: What to return. By default partition is set.
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:return: USB disk/partition as list
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"""
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disk = []
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if platform.system() == "Linux":
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output = subprocess.check_output("lsblk -i", shell=True)
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if partition != 1:
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for line in output.splitlines():
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line = line.split()
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if (line[2].strip()) == b'1' and (line[5].strip()) == b'disk':
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disk.append(str("/dev/" + str(line[0].strip().decode())))
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elif partition == 1:
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for line in output.splitlines():
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line = line.split()
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if (line[2].strip()) == b'1' and line[5].strip() == b'part':
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disk.append(str("/dev/" + str(line[0].strip()[2:])))
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else:
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oFS = win32com.client.Dispatch("Scripting.FileSystemObject")
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oDrives = oFS.Drives
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for drive in oDrives:
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if drive.DriveType == 1 and drive.IsReady:
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disk.append(drive)
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return disk
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@staticmethod
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def imager_usb_detail(physical_disk):
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"""
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Function to detect details of USB disk using lsblk
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:param physical_disk: /dev/sd? (linux) or integer disk number (win)
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:return: details of size, type and model as tuples
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"""
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_ntuple_diskusage = collections.namedtuple(
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'usage', 'total_size usb_type model')
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if platform.system() == "Linux":
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output = subprocess.check_output("lsblk -ib " + physical_disk,
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shell=True)
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for line in output.splitlines():
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line = line.split()
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if line[2].strip() == b'1' and line[5].strip() == b'disk':
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total_size = line[3]
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if not total_size:
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total_size = "Unknown"
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usb_type = "Removable"
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model = subprocess.check_output(
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"lsblk -in -f -o MODEL " + physical_disk,
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shell=True).decode().strip()
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if not model:
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model = "Unknown"
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else:
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dinfo = osdriver.wmi_get_physicaldrive_info_ex(physical_disk)
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return _ntuple_diskusage(*[dinfo[a] for a in [
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'size_total', 'mediatype', 'model']])
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return _ntuple_diskusage(total_size, usb_type, model)
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def get_usb_size(self, usb_disk):
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"""
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Function to detect USB disk space. Useful but not used in multibootusb as of now.
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:param usb_disk: USB disk like "/dev/sdb"
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:return: Size of the disk as integer
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"""
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if platform.system() == "Linux":
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cat_output = subprocess.check_output("cat /proc/partitions | grep " + usb_disk[5:], shell=True)
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usb_size = int(cat_output.split()[2]) * 1024
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# log(usb_size)
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return usb_size
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else:
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usb_size = self.usb.disk_usage(self.usb.get_usb(usb_disk).mount).total
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return usb_size
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