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209 lines
8.0 KiB
Python
209 lines
8.0 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 os
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import subprocess
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import collections
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import platform
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import signal
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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 iso
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from . import usb
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from . import config
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from . import progressbar
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if platform.system() == "Windows":
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import win32com.client
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def dd_linux():
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import time
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_input = "if=" + config.image_path
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in_file_size = float(os.path.getsize(config.image_path))
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_output = "of=" + config.usb_disk
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os.system("umount " + config.usb_disk + "1")
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command = ['dd', _input, _output, "bs=1M", "oflag=sync"]
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log("Executing ==> " + " ".join(command))
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dd_process = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=False)
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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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while dd_process.poll() is None:
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time.sleep(0.1) # If this time delay is not given, the Popen does not execute the actual command
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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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copied = int(out_error.split(' ', 1)[0])
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config.imager_percentage = round((float(copied) / float(in_file_size) * 100))
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pbar.update(config.imager_percentage)
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break
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if dd_process.poll() is not None:
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log("\nExecuting ==> sync")
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os.sync()
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log("ISO has been written to USB disk...")
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return
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def dd_win():
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windd = resource_path(os.path.join("data", "tools", "dd", "dd.exe"))
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if os.path.exists(resource_path(os.path.join("data", "tools", "dd", "dd.exe"))):
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log("dd exist")
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_input = "if=" + config.image_path
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in_file_size = float(os.path.getsize(config.image_path) / 1024 / 1024)
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_output = "of=\\\.\\" + config.usb_disk
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command = [windd, _input, _output, "bs=1M", "--progress"]
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log("Executing ==> " + " ".join(command))
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dd_process = subprocess.Popen(command, universal_newlines=True, stderr=subprocess.PIPE, stdout=subprocess.PIPE,
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shell=False)
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while dd_process.poll() is None:
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for line in iter(dd_process.stderr.readline, ''):
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line = line.strip()
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if 'error' in line.lower() or 'invalid' in line.lower():
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log("Error writing to disk...")
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break
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if line and line[-1] == 'M':
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copied = float(line.strip('M').replace(',', ''))
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config.imager_percentage = round((copied / float(in_file_size) * 100))
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log("ISO has been written to USB disk...")
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return
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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(usb_disk, partition=1):
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"""
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Function to detect details of USB disk using lsblk
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:param usb_disk: path to usb disk
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:param partition: by default partition is set (but yet to code for it)
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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('usage', 'total_size usb_type model')
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if platform.system() == "Linux":
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output = subprocess.check_output("lsblk -ib " + usb_disk, shell=True)
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for line in output.splitlines():
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line = line.split()
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if partition != 1:
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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("lsblk -in -f -o MODEL " + usb_disk, 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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try:
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selected_usb_part = str(usb_disk)
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oFS = win32com.client.Dispatch("Scripting.FileSystemObject")
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d = oFS.GetDrive(oFS.GetDriveName(oFS.GetAbsolutePathName(selected_usb_part)))
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selected_usb_device = d.DriveLetter
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label = (d.VolumeName).strip()
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if not label.strip():
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label = "No label."
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total_size = d.TotalSize
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usb_type = "Removable"
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model = label
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except:
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log("Error detecting USB details.")
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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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