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
|
#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.
###########
# imports #
###########
#import locale
import os
import io
import gettext
from subprocess import call, Popen, PIPE
import hashlib
import gnupg
import time
class Dumper(object):
def _do_write(self,source,target, b):
# Writing step
#Dump mode
self.returncode=0
self.operation=True
bs=4096*128
try:
ifc=io.open(source, "rb",1)
except:
message = _('Reading error.')+ source
self.return_state = False
self.return_message = message
self.finished.set()
return
else:
try:
ofc= io.open(target, 'wb',0)
except:
message = _("You don't have permission to write to the device {}").format(target)
logging.error(message)
self.return_state = False
self.return_message = message
self.finished.set()
return
else:
self.operation=True
steps=list(range(0, b+1, int(b/100)))
steps.append(b)
indice=1
written=0
ncuts=int(b/bs)
while ncuts <= 100:
bs=int(bs/2)
ncuts=int(b/bs)
for i in range(0,int(ncuts)+1):
try:
buf=ifc.read(bs)
except:
message = _("Reading error.")
logging.error(message)
self.return_state = False
self.return_message = message
self.finished.set()
return
try:
ofc.write(buf)
except:
message = _("Writing error.")
self.return_state = False
self.return_message = message
self.finished.set()
return
written+=len(buf)
if written > steps[indice]:
if indice%1==0:
self._progress = indice
indice +=1
try:
os.fsync(ofc)
except:
message = _("Writing error.")
self.return_state = False
self.return_message = message
self.finished.set()
return
try:
ofc.close()
except:
message = _("Writing error.")
logging.error(message)
self.return_message = message
self.return_state = False
return
ifc.close()
self._progress = 100
self.finished.set()
self.return_state = True
self.return_message = _("Success")
return
def _do_unmount(self, target):
target = target[0]
message = _("No partition is mounted.")
retcode = 0
try:
lines = [line.strip("\n").split(" ") for line in open ("/etc/mtab", "r").readlines()]
mounts = [mount for mount in lines if mount[0].startswith(target)]
except:
message = _('Could not read mtab ! {} {}'.format(os.getuid(),target))
return False, message
if mounts:
message =_("Unmounting all partitions of {}:\n").format(target)
print(message)
for mount in mounts:
message +=_("Trying to unmount {}...\n").format(mount[0])
try:
retcode = call('umount '+mount[0], shell=True)
if retcode == 32:
message += _('Partition {} is busy').format(mount[0])
elif retcode< 0:
message += _('Error, umount {} was terminated by signal {}').format(mount[0],retcode)
elif retcode == 0:
message += _('{} successfully unmounted').format(mount[0])
else:
message += _('Error, umount returned {}').format(str(retcode))
except OSError as e:
message += _('Execution failed: {}').format(str(e))
print(message)
return not bool(retcode), message
def _get_sum(self, source):
self.return_state = False
self.return_message = ""
# Check if the sum file has a valid signature
gpg = gnupg.GPG()
gpg.encoding = 'utf-8'
# Use Mageia public key
sig_file = source +'.sha512.gpg'
try:
gpg.recv_keys('pgp.mit.edu', 'EDCA7A90')
self.sum_check_searched = True
with open(sig_file, 'rb') as g:
self.signature_found = True
verified = gpg.verify_file(g, source + ".sha512")
if verified.valid:
self.signature_checked = True
logging.debug("signature checked")
else:
self.signature_checked = False
except:
self.signature_found = False
self.return_message = _("Signature file {} not found\n").format(sig_file)
try:
# Look for sum files in the same directory as source
with open(source+'.sha512','r') as fs:
# Read the sum in the file
self.sum_check=(fs.readline()).split()[0]
self.sum_file = True
except:
self.return_message = _("Sum SHA512 file {} not found\n").format(source+'.sha512')
self.sum_file = False
def _check_write(self, target, source):
self.return_state = False
self.return_message = ""
b = os.path.getsize(source)
# Compute the sum from the written device
steps=list(range(0, b+1, int(b/100)))
steps.append(b)
indice=0
checked=0
sha512func=hashlib.sha512()
ncuts=int(b/1024)
#try:
with open(target, 'rb') as f:
for x in range(0,ncuts):
block = f.read(1024)
sha512func.update(block)
if checked > steps[indice]:
self._progress = indice
indice +=1
checked+=1024
block = f.read(b-ncuts*1024)
sha512func.update(block)
sha512sumcalc=sha512func.hexdigest()
f.close()
if self.signature_found and not self.signature_checked:
self.return_message = _('Invalid signature for %s.sha512')%source
if (self.sum_check == "") : # Can't get stored sum
self.return_message += _('SHA512 sum: {}').format(sha512sumcalc)
# compare the sums
elif (sha512sumcalc == self.sum_check) :
if self.signature_checked:
self.return_message +="\n" + _("The sha512 sum check is OK and the sum is signed")
else :
self.return_message +="\n" + _("The sha512 sum check is OK but the signature can't be found")
else:
self.return_message +="\n" + _("/!\\The computed and stored sums don't match")
#except:
#pass
self._progress = 100
self.return_state = True
self.finished.set()
def _do_persistence(self, target, label):
p = Popen(["fdisk",target], stdin = PIPE)
p.communicate(input=b'n\np\n3\n\n\nw\n')
# exemple mkfs.ext4 -L mgalive-persist /dev/sdf3
process = Popen(['mkfs.ext4','-L', label, target+"3"])
working=True
while working:
time.sleep(0.5)
process.poll()
rc=process.returncode
if rc is None:
working=True
else:
process = None
working= False
print(rc)
return rc
def __init__(self):
gettext.install('isodumper', localedir='/usr/share/locale')
# Operation running
self.operation=False
|
