def backup_device(self, label='', passphrase=''):
self.device.check_mitm()
ok = self.device.send_recv(CCProtocolPacker.start_backup())
assert ok == None
while 1:
time.sleep(0.250)
done = self.device.send_recv(CCProtocolPacker.get_backup_file(),
timeout=None)
if done == None:
continue
break
if len(done) != 2:
raise ValueError('Failed: %r' % done)
result_len, result_sha = done
result = self.device.download_file(result_len,
result_sha,
file_number=0)
filename = time.strftime('backup-%Y%m%d-%H%M.7z')
open(filename, 'wb').write(result)
return {
'success': True,
'message': 'The backup has be written to {}'.format(filename)
}
def start_backup(outdir, outfile, verbose=False):
"""
Creates 7z encrypted backup file after prompting user to remember a massive passphrase.
Downloads the AES-encrypted data backup and by default, saves into current directory using
a filename based on today's date.
"""
with get_device() as dev:
dev.check_mitm()
ok = dev.send_recv(CCProtocolPacker.start_backup())
assert ok == None
result, chk = wait_and_download(dev,
CCProtocolPacker.get_backup_file(), 0)
if outfile:
outfile.write(result)
outfile.close()
fn = outfile.name
else:
assert outdir
# pick a useful filename, if they gave a dirname
fn = os.path.join(outdir, time.strftime('backup-%Y%m%d-%H%M.7z'))
open(fn, 'wb').write(result)
click.echo("Wrote %d bytes into: %s\nSHA256: %s" %
(len(result), fn, str(b2a_hex(chk), 'ascii')))
def start_backup(outdir, outfile, verbose=False):
'''Prompts user to remember a massive pass phrase and then \
downloads AES-encrypted data backup. By default, saves into current directory using \
a filename based on the date.'''
dev = ColdcardDevice(sn=force_serial)
dev.check_mitm()
ok = dev.send_recv(CCProtocolPacker.start_backup())
assert ok == None
result, chk = wait_and_download(dev, CCProtocolPacker.get_backup_file(), 0)
if outfile:
outfile.write(result)
outfile.close()
fn = outfile.name
else:
assert outdir
# pick a useful filename, if they gave a dirname
fn = os.path.join(outdir, time.strftime('backup-%Y%m%d-%H%M.7z'))
open(fn, 'wb').write(result)
click.echo("Wrote %d bytes into: %s\nSHA256: %s" %
(len(result), fn, str(b2a_hex(chk), 'ascii')))
