def createClearMerkleTree(self, height): subsidy = self.SubsidyAlgo(height) cbtxn = self.makeCoinbaseTxn(subsidy, False, witness_commitment=None) cbtxn.setCoinbase(b'\0\0') # necessary to avoid triggering segwit marker+flags cbtxn.assemble() MT = MerkleTree([cbtxn]) if self.currentMerkleTree: self.UpdateClearMerkleTree(MT, self.currentMerkleTree.MP) MT.witness_commitment = None return MT
def createClearMerkleTree(self, height): subsidy = self.SubsidyAlgo(height) blockInfo = (None, None) if hasattr(self, 'Rootstock') and self.Rootstock is not None: blockInfo = self.Rootstock.getBlockInfo() cbtxn = self.makeCoinbaseTxn(subsidy, False, witness_commitment=None) cbtxn.setCoinbase(b'\0\0') # necessary to avoid triggering segwit marker+flags cbtxn.assemble() MT = MerkleTree([cbtxn]) self.merkleTreeLock.acquire() if self.currentMerkleTree: self.UpdateClearMerkleTree(MT, self.currentMerkleTree.MP) self.merkleTreeLock.release() MT.witness_commitment = None if blockInfo[0] is not None: MT.rootstockBlockInfo = blockInfo return MT
def _ProcessGBT(self, MP, TS = None):
oMP = MP
MP = deepcopy(MP)
if MP['version'] & 0xe0000000 != 0x20000000:
self.logger.error('Template from \'%s\' has non-BIP9 block version (%x)' % (TS['name'], MP['version']))
return None
ISupportAllRules = True
for ruleflag in MP['rules']:
(MandatoryRule, rule) = SplitRuleFlag(ruleflag)
if rule not in SupportedRules:
ISupportAllRules = False
if MandatoryRule:
self.logger.error('Template from \'%s\' strictly requires unsupported rule \'%s\'', TS['name'], rule)
return None
else:
self.logger.warning('Template from \'%s\' loosely requires unsupported rule \'%s\'', TS['name'], rule)
MP['_filtered_vbavailable'] = {}
for ruleflag in MP['vbavailable']:
rulebit = MP['vbavailable'][ruleflag]
rulemask = (1 << rulebit)
if MP['version'] & rulemask:
MP['_filtered_vbavailable'][ruleflag] = rulebit
prevBlock = bytes.fromhex(MP['previousblockhash'])[::-1]
if 'height' not in MP:
MP['height'] = TS['access'].getinfo()['blocks'] + 1
height = MP['height']
bits = bytes.fromhex(MP['bits'])[::-1]
(MP['_bits'], MP['_prevBlock']) = (bits, prevBlock)
MP['_BlockVersionBytes'] = struct.pack('<L', MP['version'])
if (prevBlock, height, bits) != self.currentBlock and (self.currentBlock[1] is None or height > self.currentBlock[1]):
self.updateBlock(prevBlock, height, bits, _HBH=(MP['previousblockhash'], MP['bits']))
txnlist = MP['transactions']
if len(txnlist) and isinstance(txnlist[0], dict):
txninfo = txnlist
txnlist = tuple(a['data'] for a in txnlist)
elif 'transactionfees' in MP:
# Backward compatibility with pre-BIP22 gmp_fees branch
txninfo = [{'fee':a} for a in MP['transactionfees']]
else:
# Backward compatibility with pre-BIP22 hex-only (bitcoind <0.7, Eloipool <future)
txninfo = [{}] * len(txnlist)
# TODO: cache Txn or at least txid from previous merkle roots?
txnlist = [a for a in map(bytes.fromhex, txnlist)]
self._makeBlockSafe(MP, txnlist, txninfo)
if len(MP['transactions']) != len(txnlist) and not ISupportAllRules:
self.logger.error('Template from \'%s\' should be trimmed, but requires unsupported rule(s)', TS['name'])
return None
txnobjs = [None]
for i in range(len(txnlist)):
iinfo = txninfo[i]
ka = {}
if 'txid' in iinfo:
ka['txid'] = bytes.fromhex(iinfo['txid'])[::-1]
txnobjs.append(Txn(data=txnlist[i], **ka))
witness_commitment = CalculateWitnessCommitment(txnobjs, self.WitnessNonce, force=self.ForceWitnessCommitment)
cbtxn = self.makeCoinbaseTxn(MP['coinbasevalue'], prevBlockHex = MP['previousblockhash'], witness_commitment=witness_commitment)
cbtxn.setCoinbase(b'\0\0')
cbtxn.assemble()
txnobjs[0] = cbtxn
txnobjs = list(txnobjs)
newMerkleTree = MerkleTree(txnobjs)
newMerkleTree.POTInfo = MP.get('POTInfo')
newMerkleTree.MP = MP
newMerkleTree.oMP = oMP
newMerkleTree.witness_commitment = witness_commitment
return newMerkleTree
