def process_block_queue():
"""
Process block queue
- this is for primary validators only
"""
with cache.lock(BLOCK_QUEUE_CACHE_LOCK_KEY):
block_queue = cache.get(BLOCK_QUEUE)
if block_queue:
cache.set(BLOCK_QUEUE, [], None)
for block in block_queue:
is_valid, sender_account_balance = is_block_valid(block=block)
if not is_valid:
continue
existing_accounts, new_accounts = get_updated_accounts(
sender_account_balance=sender_account_balance,
validated_block=block)
update_accounts_cache(existing_accounts=existing_accounts,
new_accounts=new_accounts)
update_accounts_table(existing_accounts=existing_accounts,
new_accounts=new_accounts)
confirmation_block, head_block_hash = sign_block_to_confirm_and_update_head_block_hash(
block=block,
existing_accounts=existing_accounts,
new_accounts=new_accounts)
add_valid_confirmation_block(confirmation_block=confirmation_block)
send_confirmation_block_to_all_confirmation_validators.delay(
confirmation_block=confirmation_block)
def process_confirmation_block_queue():
"""
Process confirmation block queue
- this is for confirmation validators only
Ran after:
- initial sync with primary validator
- receiving confirmation block from the primary validator
"""
self_configuration = get_self_configuration(exception_class=RuntimeError)
head_block_hash = cache.get(HEAD_BLOCK_HASH)
confirmation_block = get_queued_confirmation_block(block_identifier=head_block_hash)
while confirmation_block:
block = confirmation_block['block']
is_valid, sender_account_balance = is_block_valid(block=block)
if not is_valid:
send_invalid_block_to_banks(confirmation_block=confirmation_block)
return
existing_accounts, new_accounts = get_updated_accounts(
sender_account_balance=sender_account_balance,
validated_block=block
)
if not updated_balances_match(
confirmation_block['updated_balances'],
format_updated_balances(existing_accounts, new_accounts)
):
send_invalid_block_to_banks(confirmation_block=confirmation_block)
return
update_accounts_cache(
existing_accounts=existing_accounts,
new_accounts=new_accounts
)
update_accounts_table(
existing_accounts=existing_accounts,
new_accounts=new_accounts
)
confirmation_block, head_block_hash = sign_block_to_confirm_and_update_head_block_hash(
block=block,
existing_accounts=existing_accounts,
new_accounts=new_accounts
)
delete_queued_confirmation_block(block_identifier=confirmation_block['message']['block_identifier'])
add_valid_confirmation_block(confirmation_block=confirmation_block)
if self_configuration.daily_confirmation_rate:
handle_bank_confirmation_services.delay(
block=block,
self_account_number=self_configuration.account_number
)
send_confirmation_block_to_banks(confirmation_block=confirmation_block)
confirmation_block = get_queued_confirmation_block(block_identifier=head_block_hash)
def test_confirmation_block_history_post(
client, confirmation_block_data,
signed_confirmation_block_history_request):
add_valid_confirmation_block(confirmation_block=confirmation_block_data)
response = client.post_json(
reverse('confirmation_block_history-list'),
signed_confirmation_block_history_request,
expected=HTTP_200_OK,
)
assert response == signed_confirmation_block_history_request
def test_block_chain_view(client, confirmation_validator_configuration,
confirmation_block_data):
add_valid_confirmation_block(confirmation_block=confirmation_block_data)
response = client.get_json(
reverse('meta/block_chain'),
expected=HTTP_200_OK,
)
assert response['block_chain']['0'] == confirmation_block_data
def test_valid_confirmation_blocks_view(client, block_identifier,
confirmation_block_data):
add_valid_confirmation_block(confirmation_block=confirmation_block_data)
response = client.get_json(
reverse('meta/valid_confirmation_blocks'),
expected=HTTP_200_OK,
)
assert response['valid_confirmation_blocks'][
f'{VALID_CONFIRMATION_BLOCK}:{block_identifier}'] == confirmation_block_data
def test_confirmation_block_valid_200(client, confirmation_block_data,
block_identifier):
add_valid_confirmation_block(confirmation_block=confirmation_block_data)
result = client.get_json(
reverse(
'confirmation_blocks-valid',
args=[block_identifier],
),
expected=HTTP_200_OK,
)
assert result == confirmation_block_data
