/usr/share/dell/scripts/wodim-iso.py is in dell-recovery 1.48.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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#
# Copyright (C) 2015 Canonical Limited
# Author: Shih-Yuan Lee (FourDollars) <sylee@canonical.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import math, os, re, subprocess, sys, threading
from gettext import gettext as _
from gettext import textdomain
from gi.repository import GObject, Gdk, Gtk
if os.getgid() == 0:
sys.stdout = open('/var/log/wodim-iso.log', 'w', encoding='utf-8')
class Wodim:
def __init__(self, device, iso):
self.device = device
self.iso = iso
def get_minimum_speed(self):
command = ['wodim', 'dev=' + self.device, '-prcap']
output = subprocess.check_output(command, stderr=subprocess.STDOUT).decode('utf-8')
# Write speed # 0: 5540 kB/s CLV/PCAV (CD 31x, DVD 4x)
# Write speed # 1: 2770 kB/s CLV/PCAV (CD 15x, DVD 2x)
speedpat = re.compile(r'(.*)DVD(\s+)(\d+)x')
speed = None
for line in output.splitlines():
if line.startswith(' Write speed'):
m = speedpat.match(line)
speed = m.group(3)
if not speed:
return speed
speed = math.floor(float(speed))
return str(speed)
def media_type(self):
# Profile: 0x0012 (DVD-RAM)
# Profile: 0x002B (DVD+R/DL)
# Profile: 0x001B (DVD+R)
# Profile: 0x001A (DVD+RW)
# Profile: 0x0016 (DVD-R/DL layer jump recording)
# Profile: 0x0015 (DVD-R/DL sequential recording)
# Profile: 0x0014 (DVD-RW sequential recording)
# Profile: 0x0013 (DVD-RW restricted overwrite)
# Profile: 0x0011 (DVD-R sequential recording)
# Profile: 0x0010 (DVD-ROM)
# Profile: 0x000A (CD-RW)
# Profile: 0x0009 (CD-R)
# Profile: 0x0008 (CD-ROM)
# Profile: 0x0002 (Removable disk)
command = ['wodim', 'dev=' + self.device, 'driveropts=help', '-checkdrive', '-v']
output = subprocess.check_output(command, stderr=subprocess.STDOUT).decode('utf-8')
# Current: 0x0014 (DVD-RW sequential recording)
typepat = re.compile(r'(.*)\(([^\s\)]+)')
for line in output.splitlines():
if line.startswith('Current:'):
m = typepat.match(line)
if m.group(2) == 'Reserved/Unknown':
return None
else:
return m.group(2)
def is_burnfree(self):
command = ['wodim', 'dev=' + self.device, 'driveropts=help', '-checkdrive', '-v']
output = subprocess.check_output(command, stderr=subprocess.STDOUT).decode('utf-8')
for line in output.splitlines():
if line.startswith('burnfree'):
return True
return False
def is_blank(self):
command = ['dvd+rw-mediainfo', self.device]
output = subprocess.check_output(command, stderr=subprocess.STDOUT).decode('utf-8')
for line in output.splitlines():
if line.startswith(' Disc status:'):
if line.split()[-1] == 'blank':
return True
else:
return False
def format(self):
command = ['wodim', 'dev=' + self.device, '-format']
print('> ' + ' '.join(command))
with subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, universal_newlines=True) as process:
for line in process.stdout:
print(line.strip())
def fast_blank(self):
command = ['wodim', 'dev=' + self.device, 'blank=fast']
print('> ' + ' '.join(command))
with subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, universal_newlines=True) as process:
for line in process.stdout:
print(line.strip())
def force_all_blank(self):
command = ['wodim', 'dev=' + self.device, 'blank=all', '-force']
print('> ' + ' '.join(command))
with subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, universal_newlines=True) as process:
for line in process.stdout:
print(line.strip())
def burn(self, task=None):
command = ['wodim', '-v', '-eject', 'dev=' + self.device, 'speed=' + self.get_minimum_speed(), self.iso]
if self.is_burnfree():
command.extend(['driveropts=burnfree'])
print('> ' + ' '.join(command))
progress = re.compile("Track \d+:\s+(?P<current>\d+) of (?P<total>\d+) MB written \(fifo\s+\d+%\) \[buf\s+\d+%\]\s+(?P<speed>[0-9.]+)x.")
ending = re.compile("Track \d+: Total bytes read/written: (?P<read>\d+)/(?P<write>\d+) \((?P<sector>\d+) sectors\).")
with subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, universal_newlines=True) as process:
for raw in process.stdout:
line = raw.strip()
if not line.startswith('Track'):
print(line)
continue
if '%' in line:
result = progress.match(line)
if result:
current = int(result.group('current'))
total = int(result.group('total'))
percentage = current * 100 // total
fraction = current / total
task.prompt("%d / %d MB (%d%%)" % (current, total, percentage), fraction)
else:
print(line)
result = ending.match(line)
if result:
task.prompt('Burning DVD')
def eject(self):
command = ['eject', self.device]
print('> ' + ' '.join(command))
subprocess.check_output(command, stderr=subprocess.STDOUT).decode('utf-8')
def umount(self):
command = ['umount', self.device]
print('> ' + ' '.join(command))
subprocess.check_output(command, stderr=subprocess.STDOUT).decode('utf-8')
class Prompt(Gtk.Window):
def __init__(self, title):
Gtk.Window.__init__(self, title=title)
self.set_border_width(10)
vbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=6)
self.add(vbox)
self.progressbar = Gtk.ProgressBar()
self.progressbar.pulse()
self.progressbar.set_show_text(True)
vbox.pack_start(self.progressbar, True, True, 0)
self.timeout_id = GObject.timeout_add(50, self.on_timeout, None)
self.set_position(Gtk.WindowPosition.CENTER_ALWAYS)
self.set_deletable(False)
self.set_decorated(False)
self.set_resizable(False)
self.set_keep_above(True)
self.fraction = 0.0
self.pulse = True
def on_timeout(self, user_data):
if self.pulse:
self.progressbar.pulse()
else:
self.progressbar.set_fraction(self.fraction)
return True
def set_text(self, text, fraction):
Gdk.threads_enter()
self.progressbar.set_text(text)
if fraction is None:
self.pulse = True
else:
self.pulse = False
self.fraction = fraction
self.show_all()
Gdk.threads_leave()
textdomain('brasero')
BLANKING_ERROR = _('Error while blanking.')
BURNING_ERROR = _('Error while burning.')
UNKNOWN_ERROR = _('An unknown error occurred')
REPLACE_DISC = _('Do you want to replace the disc and continue?')
REPLACE_DVD_W = _('Please replace the disc with a writable DVD.')
INSERT_DVD_W = _('Please insert a writable DVD.')
NOT_SUPPORTED = _('The disc is not supported')
NO_DISC = _('No disc available')
class DVDBurnTask:
def __init__(self):
self._running = True
self._prompt = Prompt(_('Disc Burner'))
def terminate(self):
self._running = False
Gdk.threads_enter()
self._prompt.destroy()
Gdk.threads_leave()
Gtk.main_quit();
def question(self, message, text):
self.hide()
Gdk.threads_enter()
dialog = Gtk.MessageDialog(None, 0, Gtk.MessageType.QUESTION, Gtk.ButtonsType.YES_NO, message)
dialog.format_secondary_text(text)
response = dialog.run()
dialog.destroy()
Gdk.threads_leave()
if response == Gtk.ResponseType.YES:
return True
else:
return False
def prompt(self, text, fraction=None):
self._prompt.set_text(_(text), fraction)
def hide(self):
Gdk.threads_enter()
self._prompt.hide()
Gdk.threads_leave()
def run(self):
if len(sys.argv) != 3 or not sys.argv[1].startswith('/dev/') or not sys.argv[2].endswith('.iso'):
self.terminate()
return
dvd = Wodim(device=sys.argv[1], iso=sys.argv[2])
while self._running:
# Get the media type.
try:
media_type = dvd.media_type()
except subprocess.CalledProcessError:
dvd.umount()
continue
# Insert another disc is no media type available.
if not media_type:
if not self.question(NO_DISC, INSERT_DVD_W):
self.terminate()
continue
# Check DVD
if media_type.startswith('DVD'):
blank = dvd.is_blank()
# Blank DVD+RW needs to be formatted at least once.
if '+RW' in media_type and blank:
self.prompt('Formatting disc')
try:
dvd.format()
except subprocess.CalledProcessError:
dvd.eject()
if not self.question(UNKNOWN_ERROR, REPLACE_DISC):
self.terminate()
# Non-blank DVD-RW needs to be blanked.
elif '-RW' in media_type and not blank:
self.prompt('Disc Blanking')
try:
dvd.fast_blank()
except subprocess.CalledProcessError:
try:
dvd.force_all_blank()
except subprocess.CalledProcessError:
dvd.eject()
if not self.question(BLANKING_ERROR, REPLACE_DISC):
self.terminate()
# DVD+R and DVD-R need to be blank.
elif not 'RW' in media_type and not blank:
dvd.eject()
if not self.question(NOT_SUPPORTED, REPLACE_DVD_W):
self.terminate()
# Burning DVD if everything is ready.
else:
self.prompt('Burning DVD')
try:
dvd.burn(self)
except subprocess.CalledProcessError:
if self.question(BURNING_ERROR, REPLACE_DISC):
continue
self.terminate()
# CD is not supported.
elif media_type.startswith('CD'):
dvd.eject()
if not self.question(NOT_SUPPORTED, REPLACE_DVD_W):
self.terminate()
# Unknown media type is not supported.
else:
dvd.eject()
if not self.question(NOT_SUPPORTED, REPLACE_DVD_W):
self.terminate()
if __name__ == '__main__':
GObject.threads_init()
Gdk.threads_init()
task = DVDBurnTask()
thread = threading.Thread(target=task.run)
thread.start()
Gtk.main()
thread.join()
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