aboutsummaryrefslogtreecommitdiffstats
path: root/lib/isodumper.py
blob: ffc56cc51d6833e6d7a671b6a8f4d229f78b7fcf (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
#coding:utf-8

#!/usr/bin/python3
#
#  Copyright (c) 2007-2009 Canonical Ltd.
#
#  Author: Oliver Grawert <ogra@ubuntu.com>
#
#  Modifications 2013 from papoteur <papoteur@mageialinux-online.org>
#  and Geiger David <david.david@mageialinux-online.org>
#
#  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 2 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, write to the Free Software Foundation,
#  Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.

#  Requires python3-parted

# ensure we're using the latest build, if called from our build environment
import sys
import importlib
try:
    from isodumper import version
except:
    import version

sys.path.insert(0,'../../../build/swig/python3')
importlib.reload(sys)
###########
# imports #
###########
import yui
import time

import os
import re
import gettext
from subprocess import Popen, PIPE
from pydbus import SystemBus

import psutil
import manatools.args as args



class NoUDisks2(Exception):
    pass


class UDisks2(object):

    BLOCK = 'org.freedesktop.UDisks2.Block'
    DRIVE = 'org.freedesktop.UDisks2.Drive'
    SERVICE = 'org.freedesktop.UDisks2'

    def __init__(self):
        self.bus = SystemBus()
        try:
            self.iface = self.bus.get(self.SERVICE)
        except :
            raise NoUDisks2()
        self._udisks2_obj_manager = self.iface["org.freedesktop.DBus.ObjectManager"]

    def find_devices(self):
        objects = self._udisks2_obj_manager.GetManagedObjects()
        re_drive = re.compile('(?P<path>.*?/drives/(?P<id>.*))')
        re_block = re.compile('(?P<path>.*?/block_devices/(?P<id>.*))')
        devs= [m.groupdict() for m in
                     [re_drive.match(path) for path in (objects.keys())]
                 if m]
        blocks = [m.groupdict() for m in
                     [re_block.match(path) for path in (objects.keys())]
                 if m]
        list=[]

        for block in blocks:
            if not (self.SERVICE + '.Partition' in objects[block['path']]):  # we skip partition blocks
                for dev in devs:
                    if dev['path'] == objects[block['path']][self.BLOCK]['Drive']:  #  we look for device which is referenced in Drive attribute of the current block
                        dev_obj =objects[dev['path']][self.DRIVE]
                        if (dev_obj['ConnectionBus'] == 'usb' or dev_obj['ConnectionBus'] == 'sdio') and \
                            (dev_obj['Removable'] == 1 or dev_obj['MediaRemovable'] == 1 ):     # we keep only blocks where device ConnectionBus is sdio or usb
                            item=[]
                            vend = dev_obj['Vendor']
                            if vend == "":
                                name = dev_obj['Model']
                            else:
                                name = vend + " "+ dev_obj['Model']
                            dev_name = block['path'].split('/')[-1]
                            path = '/dev/'+block['path'].split('/')[-1]
                            size = dev_obj['Size']
                            item.append(name)
                            item.append(path)
                            item.append(size)
                            list.append(item)
        return list

    def do_unmount(self, target):
        # keep only the end, like sdb
        target = os.path.basename(target)
        objects = self._udisks2_obj_manager.GetManagedObjects()
        re_drive = re.compile('(?P<path>.*?/drives/(?P<id>.*))')
        re_block = re.compile('(?P<path>.*?/block_devices/(?P<id>.*))')
        blocks = [m.groupdict() for m in
                     [re_block.match(path) for path in (objects.keys())]
                 if m]
        for block in blocks:
            if (self.SERVICE + '.Partition' in objects[block['path']]):  # we skip non partition blocks
                # Table should be something like '/org/freedesktop/UDisks2/block_devices/sdb'
                if objects[block['path']][self.SERVICE + '.Partition']['Table'].split('/')[-1] == target :
                    print("Unmounting: {}".format(block['path'].split('/')[-1]))
                    if (self.SERVICE + '.Encrypted' in objects[block['path']]): # Is the partition encrypted ?
                        path_to_encrypted = objects[block['path']][self.SERVICE + '.Encrypted']['CleartextDevice']
                        print(path_to_encrypted)
                        if path_to_encrypted != '/' :
                            iface = self.bus.get(self.SERVICE, path_to_encrypted)
                            fs = iface[self.SERVICE + '.Filesystem']
                            if fs.MountPoints : # partition is mounted
                                fs.Unmount({})
                            iface = self.bus.get(self.SERVICE, block['path'])
                            fs = iface[self.SERVICE + '.Encrypted']
                            fs.Lock({})
                    else:
                        iface = self.bus.get(self.SERVICE, block['path'])
                        fs = iface[self.SERVICE + '.Filesystem']
                        if fs.MountPoints :  # partition is mounted
                            fs.Unmount({})
        return True, ""

    def eject(self, device):
        ''' device is expected like /dev/sda'''
        block = os.path.basename(device)
        iface = self.bus.get(self.SERVICE,'/org/freedesktop/UDisks2/block_devices/' + block)
        drive = iface.Get(self.BLOCK,"Drive")
        i_drive = self.bus.get(self.SERVICE, drive)
        i_drive.Eject({})

class Info(object):
    def __init__(self,title,richtext,text):
        self.title=title
        self.richtext=richtext
        self.text=text

class ParseCLI(args.AppArgs):
    def __init(self, command):
        super().__init__(command)

class IsoDumper(object):

    def get_devices(self):
        self.list=self.u.find_devices()
        while len(self.list)==0:
            if self.nodevDialog():
                self.list = self.u.find_devices()
            else:
                return False
                break
        self.devicelist.addItem("",False)
        if len(self.list)>0:
            for name, path, size in self.list:
              if size != 0 :
                self.devicelist.addItem(str(name+' ('+path.lstrip()+') ' + self.sizeof_fmt(size)),False)
            return True

    def udev_wait(self, operation):
        wait = Popen(["udevadm","settle","--timeout=15"], stderr=PIPE)
        outs, errs = wait.communicate()
        working=True
        while working:
            time.sleep(0.5)
            wait.poll()
            rc=wait.returncode
            if not (rc is None):
                wait = None
                working= False
        if rc != 0:
            self.return_state = False
            self.return_message = _("Timeout reached when {}".format(operation))
            return False
        return True

    def update_list(self ):
        self.devicelist.deleteAllItems()
        self.get_devices()
        self.img_name = ""
        self.ima.setLabel(self.ChooseImage)
        self.backup_select.setLabel(self.ChooseImage)
        self.dialog.recalcLayout()
        self.restore()

    def device_selected(self):
        selitem = self.devicelist.selectedItem()
        if selitem != None:
            self.dev = selitem.label()
            for name, path, size in self.list:
                if self.dev.startswith(name+' ('+path.lstrip()):
                    self.deviceSize=size
                    self.device_name=name.rstrip().replace(' ', '')
                    self.logger(_('Target Device: ')+ self.dev)
                    self.formatbt.setEnabled()
                    self.ima.setEnabled()
                    self.backup_select.setEnabled()
                    break

    def sizeof_fmt(self, num):
        # I18N these are units for files size
        for unit in [_('B'),_('KiB'),_('MiB'),_('GiB'),_('TiB')]:
            if abs(num) < 1024.0:
                return "%3.3f %s" % (num, unit)
            num /= 1024.0
        return "%.1f %s" % (num, _('TiB'))

    def backup_choosed(self):
            # Add .img if not specified
            if not self.backup_img_name.lower().endswith('.img'):
                self.backup_img_name=self.backup_img_name+".img"
            head, tail = os.path.split(self.backup_img_name)
            self.backup_dest=self.backup_img_name
            self.backup_select.setLabel(tail)
            self.dialog.recalcLayout()
            self.backupbt.setEnabled()

    def do_format(self,format_type,name):
        target = self.dev.split('(')[1].split(')')[0]
        info = Info(_("Formatting confirmation"),True,self.warning)
        if self.ask_YesOrNo(info):
            rc=self.raw_format(target, format_type, name)
            self.operation=False
            if rc == 0:
                message = _('The device was formatted successfully.')
                self.logger(message)
                self.success()
            elif rc == 5:
                message = _("An error occurred while creating a partition.")
                self.logger(message)
                self.emergency(message)
            elif rc == 127:
                message = _('Authentication error.')
                self.logger(message)
                self.emergency(message)
            else:
                message = _('An error occurred.')
                self.emergency(message)

    def restore(self):
        self.backup_select.setDisabled()
        self.backupbt.setDisabled()
        self.formatbt.setDisabled()
        self.ima.setDisabled()
        self.writebt.setDisabled()
        self.devicelist.setEnabled()
        self.progress.setLabel(_("Progress"))
        self.progress.setValue(0)
        self.progress.setDisabled()
        self.refreshbt.setEnabled()
        self.persistencecb.setChecked(False)
        self.persistencecb.setDisabled()
        self.cryptcb.setChecked(False)
        self.cryptcb.setDisabled()
        self.cryptkey.setDisabled()

    def onProgress(self, frac):
        self.logger(_('Wrote: {}% '.format(frac)))
        self.progress.setValue(frac)
        self.dialog.pollEvent()

    def raw_format(self, usb_path, fstype, label):
        self.operation=True
        if os.geteuid() > 0:
            launcher='pkexec'
            self.process = Popen([launcher,'/usr/bin/python3', '-u', '/usr/lib/isodumper/raw_format.py','-d',usb_path,'-f',fstype, '-l', label, '-u', str(os.geteuid()), '-g', str(os.getgid())], shell=False, stdout=PIPE, preexec_fn=os.setsid)
        else:
            self.process = Popen(['/usr/bin/python3', '-u', '/usr/lib/isodumper/raw_format.py','-d',usb_path,'-f',fstype, '-l', label, '-u', str(os.geteuid()), '-g', str(os.getgid())], shell=False, stdout=PIPE, preexec_fn=os.setsid)
        working=True
        while working:
            time.sleep(0.5)
            self.process.poll()
            rc=self.process.returncode
            if rc is None:
                working=True
            else:
                self.process = None
                working= False
        return rc

    def backup_go(self):
        dest = self.backup_img_name
        if os.path.exists(dest):
            info = Info(_("Backup confirmation"),True,_("Do you want to overwrite the file?"))
            if not(self.ask_YesOrNo(info)):
                self.returncode = 1
                return True
        st = os.statvfs(os.path.dirname(dest))
        free = st.f_bavail * st.f_frsize
        if free<self.deviceSize :
            sizeM=str(self.deviceSize/(1024*1024))
            message=_("The destination directory is too small to receive the backup (%s Mb needed)")%(sizeM)
            self.logger(message)
            self.emergency(message)
        else:
            self.returncode=0
            source = self.dev.split('(')[1].split(')')[0]
            self.logger(_('Backup to:')+' '+dest)
            bus = SystemBus()
            iface = bus.get("org.mageia.Magiback","Isodumper")
            # Writing step
            iface.do_write(source, dest, self.deviceSize)
            progress = iface.progress
            while not iface.done :
                progress = iface.progress
                self.progress.setValue(progress)
                self.dialog.pollEvent()
                time.sleep(.2)
            success, message = iface.end()
            if success:
                self.logger(_('{source} successfully written to {target}').format( source=source.split('/')[-1], target=dest))
                self.progress.setEnabled()
                self.progress.setValue(100)
                self.dialog.pollEvent()
                self.logger(message)
                self.success()
            else:
                self.emergency(message)

    def do_write(self):
        self.writebt.setDisabled()
        self.devicelist.setDisabled()
        self.formatbt.setDisabled()
        self.backupbt.setDisabled()
        self.backup_select.setDisabled()
        self.progress.setEnabled()
        source = self.img_name
        target = self.dev.split('(')[1].split(')')[0]
        b = os.path.getsize(source)
        if b > (self.deviceSize):
            message = _('The device is too small to contain the ISO file.')
            self.logger(message)
            self.emergency(message)
        else:
            info = Info(_("Writing confirmation"),True,self.warning)
            if self.ask_YesOrNo(info):
                if self.deviceSize> 1024*1024*1024*32 :
                    info = Info(_("Warning"),True,_('The device is bigger than 32 Gbytes. Are you sure you want use it?'))
                    if self.ask_YesOrNo(info):
                        pass
                    else:
                        return
                self.ima.setDisabled()
                self.writebt.setDisabled()
                self.progress.setLabel(_('Writing {source} to {target}').format(source=source.split('/')[-1],target=target.split('/')[-1]))
                self.logger(_('Executing copy from ')+source+_(' to ')+target)
                bus = SystemBus()
                iface = bus.get("org.mageia.Magiback", "Isodumper")
                success, message = self.u.do_unmount(target)
                self.udev_wait(_("unmounting"))
                if success:
                    # Writing step
                    iface.do_write(source, target, b)
                    iface.get_sum(source)
                    progress = iface.progress
                    while not iface.done :
                        progress = iface.progress
                        self.progress.setValue(progress)
                        self.dialog.pollEvent()
                        time.sleep(.5)
                    success, message = iface.end()
                    if success:
                        self.logger(_('Image {source} successfully written to {target}').format( source=source.split('/')[-1], target=target))
                        self.logger(_('Bytes written: ')+str(b))
                        self.progress.setLabel(_('Checking ')+target.split('/')[-1])
                        self.progress.setValue(0)
                        self.dialog.pollEvent()
                        # Checking
                        iface.check_write(target, source)
                        progress = iface.progress
                        while progress < 100 :
                            progress = iface.progress
                            self.progress.setValue(progress)
                            self.dialog.pollEvent()
                            time.sleep(.5)
                        success, message = iface.end()
                        self.progress.setEnabled()
                        self.progress.setValue(100)
                        self.dialog.pollEvent()
                        self.logger(message)
                        # Add persistent partition if asked
                        if self.persistencecb.isChecked():
                            self.progress.setLabel(_("Adding persistent partition"))
                            self.progress.setValue(0)
                            if self.cryptcb.isChecked():
                                if self.cryptkey.value() == "":
                                    self.logger(_("No key for encrypted partition provided. Adding the partition aborted."))
                                else:
                                    iface.do_persistence(target,"mgalive-persist", self.cryptkey.value())
                                    progress = iface.progress
                                    while not iface.done :
                                        progress = iface.progress
                                        self.progress.setValue(progress)
                                        self.dialog.pollEvent()
                                        time.sleep(.5)
                                    if iface.state:
                                        self.logger(_("Added encrypted persistent partition"))
                                    else:
                                        self.logger(iface.message)
                            else:
                                iface.do_persistence(target, "mgalive-persist", "")
                                progress = iface.progress
                                while not iface.done :
                                    progress = iface.progress
                                    self.progress.setValue(progress)
                                    self.dialog.pollEvent()
                                    time.sleep(.5)
                                self.logger(_("Added persistent partition"))
                        # Unmount if partitions are automatically mounted and then eject
                        success, message = self.u.do_unmount(target)
                        self.udev_wait(_("unmounting"))
                        if success:
                            self.u.eject(target)
                            self.success()
                        else:
                            self.emergency(message)
                            self.restore()
                    else:
                        self.emergency(message)
                else:
                    self.emergency(message)
                    self.restore()
            else:
                self.restore()

    def success(self):
        self.operation=False
        self.final_unsensitive()
        info = Info(_("Success"),True,_("The operation completed successfully.\n\
 You are free to unplug it now, a logfile \n\
(/home/-user- or /root)/.isodumper/isodumper.log will be saved when\n\
 you close the application."))
        if self.ask_OK(info) :
           return


    def confirm_close(self, *args):
        if self.operation==False:    # no writing , backup nor format running
            self.close()
        else:   # writing , backup or format running
            info = Info(_("Warning"),True,_("Writing is in progress. Exiting during writing \n\
            will make the device or the backup unusable.\n\
            Are you sure you want to quit during writing?"))
            if self.ask_YesOrNo(info) :
                return True
            else:
                return False

    def emergency(self,message):
        self.operation=False
        self.returncode=1
        self.final_unsensitive()
        info = Info(_("Error"),True,message)
        self.ask_OK(info)

    def final_unsensitive(self):
        self.ima.setDisabled()
        self.devicelist.setDisabled()
        self.writebt.setDisabled()
        self.progress.setDisabled()
        self.backup_select.setDisabled()
        self.persistencecb.setDisabled()

    def wip_unsensitive(self):
        self.ima.setDisabled()
        self.devicelist.setDisabled()
        self.writebt.setDisabled()
        self.backup_select.setDisabled()
        self.backupbt.setDisabled()
        self.refreshbt.setDisabled()
        self.persistencecb.setDisabled()

    def close(self):
        self.write_logfile()
        self.dialog.destroy()
        self.dialog = None

    def write_logfile(self):
        logpath = os.path.join(os.path.expanduser('~'),'.isodumper')
        if not(os.path.isdir(logpath)):
                os.mkdir(logpath)
        logfile=open(logpath+'/isodumper.log',"w", encoding="utf-8")
        logfile.write(self.logview.logText())
        logfile.close()

        print((self.logview.logText()))

    def logger(self, text):
        self.logview.appendLines(text+"\n")

    def activate_devicelist(self):
        self.devicelist.setEnabled()
        self.logger(_('Image ')+": "+ self.img_name)
#        self.chooser.set_tooltip_text(self.img_name)

    def help_dialog(self):
        info = Info(_("IsoDumper"),True,_("Mageia IsoDumper")+"<BR />\
----------------<BR />"+
_("This GUI program is primarily for safely writing a bootable ISO image to a USB flash drive, \
an operation devious & potentially hazardous when done by hand. As a bonus, it can also back up the \
entire previous contents of the flash drive onto the hard disc, and restore the flash drive \
to its previous state subsequently.")+"<BR />"+
_("It gives also a feature for formatting the USB device.")+"<BR /><BR />"+
_("IsoDumper can be launched either from the menus, or a user console with the command 'isodumper'.")+"<BR />"+
_("The root password is solicited when this is necessary for the program's operation.")+" <BR />"+
_("The flash drive can be inserted beforehand or once the program is started. In the latter case, a \
dialogue will say that there is no flash drive inserted, and allow a 'retry' to find it once it is. <BR />\
(You may have to close any automatically opened File Manager window).")+"<BR /><BR />"+
_("The fields of the main window are as follows:<BR />\
- Device to work on: the device of the USB flash drive, a drop-down list to choose from.<BR />\
- Write Image: to choose the source ISO image *.iso (or flash drive backup file *.img) to write out.<BR />\
- Write to device: This button launches the operation - with a prior warning dialogue.") +"<BR />"+
_("- Add a persistent partition: the remaining space will be used in a new partition where data from the Live system can be written and recovered between sessions.")+ "<BR />"+
_("- Encrypt: the persistent partition will be encrypted with the key provided in <i>Key</i> field.")+ "<BR />"+
_("The operation is shown in the progress bar beneath.")+"<BR />"+
_("- Backup to: define the name and placement of the backup image file. The current flash drive \
will be backed up to a disc file. Note that the entire flash drive is preserved, regardless of its \
actual contents; ensure that you have the necessary free disc space (the same size as the USB device). \
This backup file can be used later to restore the flash drive by selecting it as the source *.img file to write out.")+"<BR />"+
_("- Backup the device: launch the backup operation.")+"<BR />"+
_("- Format the device: create an unique partition on the entire volume in the specified format in FAT, \
exFAT, NTFS or ext. You can specify a volume name and the format in a new dialog box.")+"<BR />")
        if self.ask_OK(info) :
           return

    def __init__(self):
        APP="isodumper"
        DIR="/usr/share/locale"
        # Call translation catalog
        gettext.install(APP, localedir=DIR, names=('ngettext',))

        # Check that there is no other instance running
        current_pid = psutil.Process().pid
        for pid in psutil.pids():
            p = psutil.Process(pid)
            if p.name() == "isodumper" and p.pid != current_pid :
                info = Info(_("Error"),True,_("There is another instance of Isodumper already running."))
                self.ask_OK(info)
                yui.YUILoader.deleteUI()
                exit()


        # TODO Read log level from command line

        # define size of the selected device
        self.deviceSize=0

        # Operation running
        self.operation=False

        self.ChooseImage = _("Choose an image")
        self.warning = _("Warning\nThis will destroy all data on the target device,\n\
        are you sure you want to proceed?\n\
        If you say ok here, please <b>do not unplug</b>\
        the device during the following operation.")
        """
        Init/Constructor for the 'widgets'
        """
        yui.YUI.app().setApplicationTitle(_("IsoDumper") + " " + version.RELEASE)
        yui.YUI.app().setApplicationIcon("/usr/share/icons/isodumper.png")
        self.atelier = yui.YUI.widgetFactory()
        self.dialog = self.atelier.createPopupDialog()
        # create the main gui
        # +---+-----------------+
        # +   banner            +
        # +---+-----------------+
        # |  devicelist         |
        # +---+-----+------+----+
        # + L | ima | writebt |
        # +---+-----+------+----+
        # + L | backup_select | backupbt |
        # +---+-----+------+----+
        # + F       | formatbt  |
        # +----------------+----+
        # | progress            |
        # +---------------------+
        # | report              |
        # +---------------------+
        # | refreshbt | aboutbt  | helpbt | quitbt  |
        # +---------------------+
        self.ancrage = self.atelier.createReplacePoint(self.dialog)
        self.box = self.atelier.createVBox(self.ancrage)
        self.bannerbox = self.atelier.createHBox(self.box)
        self.banner=self.atelier.createImage(self.bannerbox,"/usr/share/isodumper/header.svg")
        self.devicebox = self.atelier.createHBox(self.box)
        self.devicelist=self.atelier.createComboBox(self.devicebox,_("Device to work on:"),False)
        self.devicelist.setNotify()
        self.devicelist.setStretchable(0,True)
        self.writebox = self.atelier.createHBox(self.box)
        self.atelier.createLabel(self.writebox,_("Write Image:"))
        #   add file picker for image file
        self.ima=self.atelier.createPushButton(self.writebox,self.ChooseImage)
        self.ima.setStretchable(0,True)
        self.ima.setDisabled()
        self.atelier.createHStretch(self.writebox)
        self.writebt = self.atelier.createPushButton(self.writebox, _("&Write to device" ))
        self.writebt.setDisabled()
        self.persistencebox = self.atelier.createHBox(self.box)
        self.persistencecol1 = self.atelier.createVBox(self.persistencebox)
        self.persistencecol2 = self.atelier.createVBox(self.persistencebox)
        self.persistencecb = self.atelier.createCheckBox(self.persistencecol1, _("Add a persistent partition in the remaining space"))
        self.persistencebox2 = self.atelier.createHBox(self.box)
        self.cryptcb = self.atelier.createCheckBox(self.persistencecol1, _("Encrypt partition"))
        self.cryptkey = self.atelier.createInputField(self.persistencecol2, _("Key:"),passwordMode = True)
        self.persistencecb.setDisabled()
        self.persistencecb.setNotify()
        self.cryptcb.setDisabled()
        self.cryptcb.setNotify()
        self.cryptkey.setDisabled()
        self.backupbox = self.atelier.createHBox(self.box)
        self.atelier.createLabel(self.backupbox,_("Backup to:"))
        #   add file picker for backup file name
        self.backup_select=self.atelier.createPushButton(self.backupbox,self.ChooseImage)
        self.backup_select.setStretchable(0,True)
        self.backup_select.setDisabled()
        self.atelier.createHStretch(self.backupbox)
        self.backupbt = self.atelier.createPushButton(self.backupbox, _("Backup the device" ))
        self.backupbt.setDisabled()
        self.formatbox = self.atelier.createHBox(self.box)
        self.atelier.createLabel(self.formatbox,_("Format the device in FAT, exFAT, NTFS or ext:"))
        self.atelier.createHStretch(self.formatbox)
        self.formatbt = self.atelier.createPushButton(self.formatbox, _("Format the device" ))
        self.formatbt.setDisabled()
        self.progressbox = self.atelier.createHBox(self.box)
        self.progress = self.atelier.createProgressBar(self.progressbox,_("Progress"),100)
        self.progress.setStretchable(0,True)
        self.reportbox = self.atelier.createHBox(self.box)
        self.reportbox.setWeight(1,30)
        self.logview = self.atelier.createLogView(self.reportbox,_("Report"), 10)
        self.logview.setStretchable(0,True)
        self.buttonsbox = self.atelier.createHBox(self.box)
        self.refreshbt = self.atelier.createPushButton(self.devicebox, _("Refresh" ))
        self.refreshbt.setStretchable(0,True)
        self.aboutbt = self.atelier.createPushButton(self.buttonsbox, _("About" ))
        self.aboutbt.setStretchable(0,True)
        self.helpbt = self.atelier.createPushButton(self.buttonsbox, _("Help" ))
        self.helpbt.setStretchable(0,True)
        self.quitbt = self.atelier.createPushButton(self.buttonsbox, _("Quit" ))
        self.quitbt.setStretchable(0,True)
        self.u = None
        try:
            self.u = UDisks2()
        except :
           message = _('UDisks2 is not available on your system')
           self.logger(message)
           self.emergency(message)
        if not self.get_devices():
            self.dialog.destroy()
            yui.YUILoader.deleteUI()
            exit()
        self.device_selected()
        self.dialog.recalcLayout()
        self.ancrage.showChild()

    def ask_format(self):
        atelier =  yui.YUI.widgetFactory()
        dialog = atelier.createPopupDialog()
        vb=atelier.createVBox(dialog)
        label = atelier.createInputField(vb,_("Label for the device:"))
        cr = atelier.createRadioButtonGroup(vb)
        vb_c = atelier.createVBox(cr)
        vb_c1 = atelier.createHBox(vb_c)
        format_fat = atelier.createRadioButton(atelier.createLeft(vb_c1),_("FAT 32 (Windows)"))
        vb_c4 = atelier.createHBox(vb_c)
        format_exfat = atelier.createRadioButton(atelier.createLeft(vb_c4),_("exFAT (Windows)"))
        vb_c2 = atelier.createHBox(vb_c)
        format_ntfs = atelier.createRadioButton(atelier.createLeft(vb_c2),_("NTFS (Windows)"))
        vb_c3 = atelier.createHBox(vb_c)
        format_ext = atelier.createRadioButton(atelier.createLeft(vb_c3),_("ext4 (Linux)"))
        bb = atelier.createHBox(vb)
        executebt = atelier.createPushButton(bb,_("Execute"))
        cancelbt = atelier.createPushButton(bb,_("Cancel"))
        dialog.open()
        returncode = True
        while True:
            event = dialog.waitForEvent()
            if event.eventType() == yui.YEvent.CancelEvent:
                returncode = False
                break
            if event.widget() == executebt:
                if format_fat.value():
                    format_type = 'fat32'
                    format_label = label.value().upper()[:11]
                    break
                if format_exfat.value():
                    format_type = 'exfat'
                    format_label = label.value()[:32]
                    break
                if format_ntfs.value():
                    format_type = 'ntfs'
                    format_label = label.value()[:32]
                    break
                if format_ext.value():
                    format_type = 'ext4'
                    format_label = label.value()
                    break
            if event.widget() == cancelbt:
                returncode = False
                break
        dialog.destroy()
        if returncode:
            return True,format_type,format_label
        else:
            return False," "," "


    def ask_OK(self, info):
        yui.YUI.widgetFactory
        mgafactory = yui.YMGAWidgetFactory.getYMGAWidgetFactory(yui.YExternalWidgets.externalWidgetFactory("mga"))
        dlg = mgafactory.createDialogBox(yui.YMGAMessageBox.B_ONE)
        dlg.setTitle(info.title)
        dlg.setText(info.text, info.richtext)
        dlg.setButtonLabel(_("OK"), yui.YMGAMessageBox.B_ONE)
        dlg.setMinSize(60, 10);
        return dlg.show() == yui.YMGAMessageBox.B_ONE

    def ask_YesOrNo(self, info):
        yui.YUI.widgetFactory
        mgafactory = yui.YMGAWidgetFactory.getYMGAWidgetFactory(yui.YExternalWidgets.externalWidgetFactory("mga"))
        dlg = mgafactory.createDialogBox(yui.YMGAMessageBox.B_TWO)
        dlg.setTitle(info.title)
        dlg.setText(info.text, info.richtext)
        dlg.setButtonLabel(_("Yes"), yui.YMGAMessageBox.B_ONE)
        dlg.setButtonLabel(_("No"),  yui.YMGAMessageBox.B_TWO)
        dlg.setMinSize(60, 8);
        return dlg.show() == yui.YMGAMessageBox.B_ONE

    def aboutDialog(self):
        yui.YUI.widgetFactory;
        mgafactory = yui.YMGAWidgetFactory.getYMGAWidgetFactory(yui.YExternalWidgets.externalWidgetFactory("mga"))
        dlg = mgafactory.createAboutDialog("Isodumper", version.RELEASE, "GPLv2",
                                        _("Oliver Grawert<BR />Papoteur<BR />Pictures : Timothée Giet"), _("A tool for writing ISO images to  a device")+"<BR />http://gitweb.mageia.org/software/isodumper", "")
        dlg.show();

    def nodevDialog(self):
        yui.YUI.widgetFactory
        mgafactory = yui.YMGAWidgetFactory.getYMGAWidgetFactory(yui.YExternalWidgets.externalWidgetFactory("mga"))
        dlg = mgafactory.createDialogBox(yui.YMGAMessageBox.B_TWO)
        dlg.setTitle("IsoDumper")
        dlg.setText(_("Warning\nNo target devices were found.\nYou need to plug in a USB Key to which the image can be written."))
        dlg.setButtonLabel(_("Refresh"), yui.YMGAMessageBox.B_ONE)
        dlg.setButtonLabel(_("Cancel"),  yui.YMGAMessageBox.B_TWO)
        dlg.setMinSize(60, 8);
        return dlg.show() == yui.YMGAMessageBox.B_ONE

    def handleevent(self):
        self.traitement=None
        while True:
            event = self.dialog.waitForEvent()
            if event.eventType() == yui.YEvent.CancelEvent:
                self.close()
                break
            if event.widget() == self.quitbt:
                self.close()
                break
            if event.widget() == self.ima:
                    self.img_name=yui.YUI.app().askForExistingFile("","*.iso *.img",self.ChooseImage)
                    if self.img_name != "" :
                        self.ima.setLabel(os.path.basename(self.img_name))
                        self.dialog.recalcLayout()
                        self.writebt.setEnabled()
                        self.activate_devicelist()
                        self.persistencecb.setEnabled()
            if event.widget() == self.persistencecb:
                print(self.persistencecb.value)
                if self.persistencecb.isChecked() :
                    self.cryptcb.setEnabled()
                else:
                    self.cryptcb.setDisabled()
                    self.cryptkey.setDisabled()
                    self.cryptcb.setChecked(False)
            if event.widget() == self.cryptcb:
                if self.cryptcb.isChecked() :
                    self.cryptkey.setEnabled()
                else:
                    self.cryptkey.setDisabled()
            if event.widget() == self.writebt:
                    self.wip_unsensitive()
                    self.do_write()
                    self.restore()
            if event.widget() == self.backupbt:
                self.wip_unsensitive()
                self.backup_go()
                self.restore()
            if event.widget() == self.backup_select:
                self.backup_img_name=yui.YUI.app().askForSaveFileName("","*.img",_("Backup to:"))
                if self.backup_img_name != '':
                        self.backup_choosed()
            if event.widget() == self.formatbt:
                    code,format_type,name = self.ask_format()
                    if code:
                        self.do_format(format_type,name)
                        self.restore()
            if event.widget() == self.devicelist:
                self.device_selected()
            try:
                if event.widget() == self.refreshbt:
                    self.update_list()
            except:
                pass
            try:
                if event.widget() == self.helpbt:
                    self.help_dialog()
            except:
                pass
            try:
                if event.widget() == self.quitbt:
                    self.confirm_close()
            except:
                pass
            if event.widget() == self.aboutbt:
                self.aboutDialog()

    def run(self):
        try:
            self.handleevent()
        except Exception as e:
            import traceback
            traceback.print_exc()
            yui.YDialog.deleteAllDialogs()


if __name__ == "__main__":
    # Send the yui logging outside of the console
    log = yui.YUILog.setLogFileName("/dev/null")
    parser = ParseCLI('isodumper')
    if parser.args.version:
        print(version.RELEASE)
    else:
        app = IsoDumper()
        app.run()
        # next line seems to be a workaround to prevent the qt-app from crashing
        # see https://github.com/libyui/libyui-qt/issues/41
        yui.YUILoader.deleteUI()