def __fill_ledger_root_hash(self, txn, lid, ledger, last_audit_txn,
three_pc_batch):
last_audit_txn_data = get_payload_data(
last_audit_txn) if last_audit_txn is not None else None
if lid == three_pc_batch.ledger_id:
txn[AUDIT_TXN_LEDGER_ROOT][lid] = Ledger.hashToStr(
ledger.uncommitted_root_hash)
txn[AUDIT_TXN_STATE_ROOT][lid] = Ledger.hashToStr(
self.database_manager.get_state(lid).headHash)
# 1. it is the first batch and we have something
elif last_audit_txn_data is None and ledger.uncommitted_size:
txn[AUDIT_TXN_LEDGER_ROOT][lid] = Ledger.hashToStr(
ledger.uncommitted_root_hash)
txn[AUDIT_TXN_STATE_ROOT][lid] = Ledger.hashToStr(
self.database_manager.get_state(lid).headHash)
# 1.1. Rare case -- we have previous audit txns but don't have this ledger i.e. new plugins
elif last_audit_txn_data is not None and last_audit_txn_data[AUDIT_TXN_LEDGERS_SIZE].get(lid, None) is None and \
len(ledger.uncommittedTxns):
txn[AUDIT_TXN_LEDGER_ROOT][lid] = Ledger.hashToStr(
ledger.uncommitted_root_hash)
txn[AUDIT_TXN_STATE_ROOT][lid] = Ledger.hashToStr(
self.database_manager.get_state(lid).headHash)
# 2. Usual case -- this ledger was updated since the last audit txn
elif last_audit_txn_data is not None and last_audit_txn_data[AUDIT_TXN_LEDGERS_SIZE].get(lid, None) is not None and \
ledger.uncommitted_size > last_audit_txn_data[AUDIT_TXN_LEDGERS_SIZE][lid]:
txn[AUDIT_TXN_LEDGER_ROOT][lid] = Ledger.hashToStr(
ledger.uncommitted_root_hash)
txn[AUDIT_TXN_STATE_ROOT][lid] = Ledger.hashToStr(
self.database_manager.get_state(lid).headHash)
# 3. This ledger is never audited, so do not add the key
elif last_audit_txn_data is None or lid not in last_audit_txn_data[
AUDIT_TXN_LEDGER_ROOT]:
return
# 4. ledger is not changed in last batch => delta = delta + 1
elif isinstance(last_audit_txn_data[AUDIT_TXN_LEDGER_ROOT][lid], int):
txn[AUDIT_TXN_LEDGER_ROOT][
lid] = last_audit_txn_data[AUDIT_TXN_LEDGER_ROOT][lid] + 1
# 5. ledger is changed in last batch but not changed now => delta = 1
elif last_audit_txn_data:
txn[AUDIT_TXN_LEDGER_ROOT][lid] = 1
def __fill_ledger_root_hash(self, txn, three_pc_batch, lid, last_audit_txn):
target_ledger_id = three_pc_batch.ledger_id
last_audit_txn_data = get_payload_data(last_audit_txn) if last_audit_txn is not None else None
# 1. ledger is changed in this batch => root_hash
if lid == target_ledger_id:
txn[AUDIT_TXN_LEDGER_ROOT][lid] = Ledger.hashToStr(three_pc_batch.txn_root)
# 2. This ledger is never audited, so do not add the key
elif last_audit_txn_data is None or lid not in last_audit_txn_data[AUDIT_TXN_LEDGER_ROOT]:
return
# 3. ledger is not changed in last batch => delta = delta + 1
elif isinstance(last_audit_txn_data[AUDIT_TXN_LEDGER_ROOT][lid], int):
txn[AUDIT_TXN_LEDGER_ROOT][lid] = last_audit_txn_data[AUDIT_TXN_LEDGER_ROOT][lid] + 1
# 4. ledger is changed in last batch but not changed now => delta = 1
elif last_audit_txn_data:
txn[AUDIT_TXN_LEDGER_ROOT][lid] = 1
def check_audit_txn(txn,
view_no,
pp_seq_no,
seq_no,
txn_time,
txn_roots,
state_roots,
pool_size,
domain_size,
config_size,
last_domain_seqno,
last_pool_seqno,
last_config_seqno,
primaries,
node_reg,
digest='',
other_sizes={}):
expectedLedgerRoots = {}
txn_roots = {k: Ledger.hashToStr(v) for k, v in txn_roots.items()}
state_roots = {k: Ledger.hashToStr(v) for k, v in state_roots.items()}
# we expect deltas here, that is a difference from the current audit ledger txn to
# the audit txn where the corresponding ledger was updated
if last_domain_seqno:
expectedLedgerRoots[1] = seq_no - last_domain_seqno
if last_pool_seqno:
expectedLedgerRoots[0] = seq_no - last_pool_seqno
if last_config_seqno:
expectedLedgerRoots[2] = seq_no - last_config_seqno
expectedLedgerRoots.update(txn_roots)
ledger_size = {0: pool_size, 1: domain_size, 2: config_size}
ledger_size.update(other_sizes)
expected = {
"reqSignature": {},
"txn": {
"data": {
"ledgerRoot": expectedLedgerRoots,
"ver": "1",
"viewNo": view_no,
"ppSeqNo": pp_seq_no,
"ledgerSize": ledger_size,
"stateRoot": state_roots,
"primaries": primaries,
"digest": digest,
"nodeReg": node_reg
},
"metadata": {},
"protocolVersion": CURRENT_PROTOCOL_VERSION,
"type": "2", # AUDIT
},
"txnMetadata": {
"seqNo": seq_no,
"txnTime": txn_time
},
"ver": "1"
}
txn = JsonSerializer().serialize(txn)
expected = JsonSerializer().serialize(expected)
print(txn)
print(expected)
assert expected == txn