def get_page(self, request):
# let's see what we know about the environment
log('getting home page')
clear_action_updates()
# last block in django database; may be different from last in blockchain
last_block_updated = state.get_last_block_updated()
# ready if blockchain-backup has processed some blockchain data
bcb_run_already = last_block_updated > 0
bin_dir_ok = preferences.bin_dir_ok()
data_dir = preferences.get_data_dir()
backup_dir_ok, backup_dir_error = preferences.backup_dir_ok()
backup_dir = preferences.get_backup_dir()
last_bcb_version = state.get_latest_bcb_version()
current_core_version = bitcoin_utils.get_bitcoin_version()
last_core_version = state.get_latest_core_version()
if bcb_run_already:
data_dir_ok, __ = preferences.data_dir_ok()
else:
if data_dir and os.path.exists(data_dir):
data_dir_ok, __ = preferences.data_dir_ok()
else:
data_dir_ok = False
bitcoin_utils.check_for_updates()
params = {
'data_dir': data_dir,
'data_dir_ok': data_dir_ok,
'backup_dir': backup_dir,
'backup_dir_ok': backup_dir_ok,
'backup_dir_error': backup_dir_error,
'last_bcb_version': last_bcb_version,
'bcb_up_to_date': last_bcb_version >= BLOCKCHAIN_BACKUP_VERSION,
'last_core_version': last_core_version,
'core_up_to_date': last_core_version >= current_core_version,
'need_backup': bitcoin_utils.get_next_backup_time() < now(),
'last_backed_up_time': state.get_last_backed_up_time(),
}
#log('params: {}'.format(params))
response = get_home_page_response(request, bcb_run_already, bin_dir_ok,
params)
return response
def clean_data_dir(self):
'''
Clean the data directory.
>>> from tempfile import gettempdir
>>> prefs = PreferencesForm()
>>> prefs.cleaned_data = {'data_dir': os.path.join(gettempdir(), 'bitcoin/data')}
>>> prefs.clean_data_dir()
'/tmp/bitcoin/data'
>>> prefs.cleaned_data = {'data_dir': None}
>>> data_dir = prefs.clean_data_dir()
>>> data_dir.endswith('.bitcoin')
True
'''
data_dir = self.cleaned_data['data_dir']
if data_dir is None:
data_dir = os.path.join(getdir(), '.bitcoin')
if not os.path.exists(data_dir):
os.makedirs(data_dir)
self.cleaned_data['data_dir'] = data_dir
ok, error = data_dir_ok(data_dir)
if ok and error is None:
data_dir = self.cleaned_data['data_dir']
else:
self.log(error)
raise ValidationError(error)
return data_dir
def check_dirs_ok(self, backup_dates):
''' Check that all the data dirs are ok. '''
error_message = more_error_msg = None
backup_dir_ok, backup_error = preferences.backup_dir_ok()
if backup_dir_ok:
good_backup = backup_dates
log(f'backup_dates {backup_dates}')
else:
log(backup_error)
data_dir_ok, data_error = preferences.data_dir_ok()
if not preferences.bin_dir_ok():
error_message = BAD_BIN_DIR
elif not data_dir_ok:
error_message = BAD_DATA_DIR + ' ' + data_error
elif not backup_dir_ok:
error_message = BAD_BACKUP_DIR + ' ' + backup_error
elif not good_backup:
log(f'no good backups in {backup_dates}')
error_message = self.NO_GOOD_BACKUP
more_error_msg = self.REMINDER
log(f'error_message {error_message}')
log(f'more_error_msg {more_error_msg}')
return error_message, more_error_msg
def test_preferences(self):
'''
Configuring the prefernces when nothing has been configured.
'''
test_utils.set_new_preferences(None)
test_utils.set_new_state(None)
client = Client(HTTP_X_FORWARDED_FOR='localhost')
response = client.post(
'/bitcoin/preferences/', {
'data_dir': '/tmp/bitcoin/data/',
'bin_dir': '/tmp/bitcoin/bin/',
'backup_schedule': 1,
'backup_levels': 2,
'backup_dir': '/tmp/bitcoin/data/backups/',
'extra_args': '',
})
# if successful post, redirected to the home page
self.assertEqual(response.status_code, 302)
self.assertEqual(response.url, '/')
# verify the preferences; the form should
# have checked, but we'll double check
self.assertTrue(preferences.data_dir_ok())
self.assertTrue(preferences.backup_dir_ok())
self.assertTrue(preferences.bin_dir_ok())
def check_good_post(self, response):
'''
Check the post had good data.
'''
# if successful post, redirected to the home page
self.assertEqual(response.status_code, 302)
self.assertEqual(response.url, '/')
# verify the preferences; the form should
# have checked, but we'll double check
self.assertTrue(preferences.data_dir_ok())
self.assertTrue(preferences.backup_dir_ok())
self.assertTrue(preferences.bin_dir_ok())
def ready(self):
''' Check that no conflicting app is running.
Returns:
True if ready to start.
False if any other app that conflicts with this app is running
or the preferences aren't configured properly.
>>> uab = UpdateAndBackup()
>>> uab.ready()
<BLANKLINE>
Auto update and backup ready
True
'''
app_ready = False
error = None
if core_utils.is_bitcoin_qt_running():
error = 'Bitcoin QT is running.'
elif core_utils.is_bitcoin_tx_running():
error = 'Bitcoin TX is running.'
elif core_utils.is_bitcoind_running():
error = 'BitcoinD is running.'
else:
dir_ok, error = data_dir_ok()
if dir_ok:
dir_ok = bin_dir_ok()
if not dir_ok:
error = 'Executable dir does not exist'
app_ready = dir_ok
if error:
message = error
if error.endswith('running'):
message = f'{error} Stop it before restarting this app again.'
else:
message = f'{error} Start Blockchain Backup to adjust the preferences.'
else:
message = 'Update and Backup Bitcoin Blockchain Ready'
log(message)
print(f'\n{message}')
return app_ready
def get_page(self, request):
global backup_task
log('backing up blockchain')
clear_action_updates()
# check that no other bitcoin-core app is running
if bitcoin_utils.is_bitcoin_core_running():
message = NO_BACKUP_IF_CORE_RUNNING
response = warn_core_running(request, message=message)
# tell user if another app is running
elif bitcoin_utils.is_restore_running():
response = warn_bcb_app_running(request,
app=constants.RESTORE_PROGRAM)
# tell user if another task is running
elif accessing_wallet() or updating() or restoring():
response = warn_bcb_task_running(request)
# tell user if backups have been disabled
elif not state.get_backups_enabled():
response = HttpResponseRedirect('/bitcoin/change_backup_status/')
log('tried to backup when backups disabled')
log(f'response: {response}')
else:
SUBNOTICE1 = 'If you need to stop the backup, then <a class="btn btn-secondary " href="/bitcoin/interrupt_backup/"'
SUBNOTICE2 = 'role="button" id="stop-button" title="Click to stop backing up the blockchain">click here</a>.'
SUBNOTICE = f'{SUBNOTICE1} {SUBNOTICE2}'
context = bitcoin_utils.get_blockchain_context()
data_dir_ok, error = preferences.data_dir_ok()
if not preferences.bin_dir_ok():
context['notice'] = BAD_BIN_DIR
context['subnotice'] = ''
elif not data_dir_ok:
context['notice'] = BAD_DATA_DIR
context['subnotice'] = error
else:
context['header'] = "Backing up bitcoin's blockchain"
context[
'notice'] = 'WARNING: Stopping the backup could damage the ability to restore the blockchain.'
context['subnotice'] = SUBNOTICE
context['progress'] = 'Starting to back up the blockchain'
context['update_interval'] = '1000'
if backing_up():
log('already backing_up blockchain')
else:
from blockchain_backup.bitcoin.backup import BackupTask
backup_task = BackupTask()
backup_task.start()
log('backup started')
# make sure the button doesn't appear any more
bitcoin_utils.send_socketio_message('button', ' ')
response = render(request, 'bitcoin/backup.html', context=context)
return response
def get_page(self, request):
global update_task
log('trying to update blockchain')
clear_action_updates()
# check that no other bitcoin-core app is running
if (bitcoin_utils.is_bitcoin_qt_running()
or bitcoin_utils.is_bitcoin_tx_running()
or (bitcoin_utils.is_bitcoind_running() and not updating())):
response = warn_core_running(request)
# tell user if another blockchain_backup app is running
elif bitcoin_utils.is_backup_running(
) or bitcoin_utils.is_restore_running():
response = warn_bcb_app_running(request)
# tell user if another task is running
elif accessing_wallet() or backing_up() or restoring():
response = warn_bcb_task_running(request)
else:
NOTICE1 = 'WARNING: Don\'t shut down your computer before you <a class="btn btn-secondary " role="button"'
NOTICE2 = 'id="stop_button" href="/bitcoin/interrupt_update/" title="Click to stop updating the blockchain">Stop update</a>'
NOTICE = f'{NOTICE1} {NOTICE2}'
context = bitcoin_utils.get_blockchain_context()
data_dir_ok, error = preferences.data_dir_ok()
if not preferences.bin_dir_ok():
context['notice'] = BAD_BIN_DIR
log(BAD_BIN_DIR)
elif not data_dir_ok:
context['notice'] = BAD_DATA_DIR
log(error)
else:
context['header'] = "Updating Bitcoin's blockchain"
context[
'notice'] = 'WARNING: Don\'t shut down your computer before you <a class="btn btn-secondary " role="button" id="stop_button" href="/bitcoin/interrupt_update/" title="Click to stop updating the blockchain">Stop update</a>'
context[
'subnotice'] = 'Shutting down before this window says it is safe <em>could damage the blockchain</em>.'
context['progress'] = 'Starting to update the blockchain'
context['update_interval'] = '5000'
if updating():
log('already updating blockchain')
else:
from blockchain_backup.bitcoin.update import UpdateTask
update_task = UpdateTask()
update_task.start()
log('UpdateTask started')
# make sure the button doesn't appear any more
bitcoin_utils.send_socketio_message('button', ' ')
log(f'context: {context}')
response = render(request, 'bitcoin/update.html', context=context)
return response
def get_page(self, request):
global accessing_wallet_task
log('accessing bitcoin interactively')
clear_action_updates()
# it's ok if bitcoin-qt is running in our task
if (bitcoin_utils.is_bitcoind_running()
or bitcoin_utils.is_bitcoin_tx_running()
or (bitcoin_utils.is_bitcoin_qt_running()
and not accessing_wallet())):
response = warn_core_running(request)
# tell user if another app is running
elif bitcoin_utils.is_backup_running(
) or bitcoin_utils.is_restore_running():
response = warn_bcb_app_running(request)
# tell user if another task is running
elif updating() or backing_up() or restoring():
response = warn_bcb_task_running(request)
else:
SUBNOTICE1 = "Waiting until you exit Bitcoin-QT.<p>Bitcoin-QT will start in another window."
SUBNOTICE2 = "You can send and receive transactions from that window."
SUBNOTICE3 = "After you exit Bitcoin-QT, Blockchain Backup will continue updating the blockchain until it's time to back it up."
SUBNOTICE4 = "Don't forget to back up your wallet routinely."
SUBNOTICE = f'{SUBNOTICE1} {SUBNOTICE2} {SUBNOTICE3} {SUBNOTICE4}'
context = bitcoin_utils.get_blockchain_context()
data_dir_ok, error = preferences.data_dir_ok()
if not preferences.bin_dir_ok():
context['notice'] = BAD_BIN_DIR
elif not data_dir_ok:
context['notice'] = BAD_DATA_DIR
context['subnotice'] = error
else:
context[
'header'] = "Accessing Bitcoin Core Wallet Interactively"
context[
'notice'] = 'WARNING: Do not shut down your computer until Bitcoin-QT stops completely.'
context['subnotice'] = SUBNOTICE
if accessing_wallet():
log('already accessing wallet')
else:
from blockchain_backup.bitcoin.access_wallet import AccessWalletTask
accessing_wallet_task = AccessWalletTask()
accessing_wallet_task.start()
log('access wallet started')
# make sure the button doesn't appear any more
bitcoin_utils.send_socketio_message('button', ' ')
response = render(request,
'bitcoin/access_wallet.html',
context=context)
return response
