import threading
import traceback
import urllib
-
+from ltc_scrypt import getPoWHash
from backends.bitcoind import deserialize
from processor import Processor, print_log
from utils import *
}
def get_header(self, height):
- block_hash = self.bitcoind('getblockhash', [height])
- b = self.bitcoind('getblock', [block_hash])
+ b = self.bitcoind('getblockbynumber', [height])
return self.block2header(b)
def init_headers(self, db_height):
self.flush_headers()
def hash_header(self, header):
- return rev_hex(Hash(header_to_string(header).decode('hex')).encode('hex'))
+ return rev_hex(getPoWHash(header_to_string(header).decode('hex')).encode('hex'))
def read_header(self, block_height):
if os.path.exists(self.headers_filename):
vds = deserialize.BCDataStream()
vds.write(raw_tx.decode('hex'))
try:
- return deserialize.parse_Transaction(vds, is_coinbase=False)
+ return deserialize.parse_Transaction(vds, is_coinbase=False, is_coinstake=False)
except:
print_log("ERROR: cannot parse", txid)
return None
is_known = True
except:
print_log("error get_history")
- self.shared.stop()
+ traceback.print_exc(file=sys.stdout)
raise
if hist:
is_known = True
def get_merkle(self, tx_hash, height):
- block_hash = self.bitcoind('getblockhash', [height])
- b = self.bitcoind('getblock', [block_hash])
+ b = self.bitcoind('getblockbynumber', [height])
tx_list = b.get('tx')
tx_pos = tx_list.index(tx_hash)
def deserialize_block(self, block):
+ is_stake_block = False
txlist = block.get('tx')
+ if "proof-of-stake" in block.get('flags'): # scan block flags list for
+ is_stake_block = True # "proof-of-stake" substring
+
tx_hashes = [] # ordered txids
txdict = {} # deserialized tx
- is_coinbase = True
- for raw_tx in txlist:
- tx_hash = hash_encode(Hash(raw_tx.decode('hex')))
+
+ for i in xrange(len(txlist)):
+ if is_stake_block and i == 0: # skip coinbase for
+ continue # stake block
+ tx_hash = hash_encode(Hash(txlist[i].decode('hex')))
vds = deserialize.BCDataStream()
- vds.write(raw_tx.decode('hex'))
+ vds.write(txlist[i].decode('hex'))
try:
- tx = deserialize.parse_Transaction(vds, is_coinbase)
- except:
+ tx = deserialize.parse_Transaction(vds, i == 0, is_stake_block and i == 1) # first transaction is always coinbase
+ except: # second transaction is coinstake if we have a stake block
print_log("ERROR: cannot parse", tx_hash)
continue
tx_hashes.append(tx_hash)
txdict[tx_hash] = tx
- is_coinbase = False
return tx_hashes, txdict
elif result != '':
self.push_response(session, {'id': message_id, 'result': result})
-
- def getfullblock(self, block_hash):
- block = self.bitcoind('getblock', [block_hash])
-
- rawtxreq = []
- i = 0
- for txid in block['tx']:
- rawtxreq.append({
- "method": "getrawtransaction",
- "params": [txid],
- "id": i,
- })
- i += 1
-
- postdata = dumps(rawtxreq)
- try:
- respdata = urllib.urlopen(self.bitcoind_url, postdata).read()
- except:
- print_log("bitcoind error (getfullblock)")
- traceback.print_exc(file=sys.stdout)
- self.shared.stop()
-
- r = loads(respdata)
- rawtxdata = []
- for ir in r:
- if ir['error'] is not None:
- self.shared.stop()
- print_log("Error: make sure you run bitcoind with txindex=1; use -reindex if needed.")
- raise BaseException(ir['error'])
- rawtxdata.append(ir['result'])
- block['tx'] = rawtxdata
- return block
-
def catch_up(self, sync=True):
prev_root_hash = None
# not done..
self.up_to_date = False
- next_block_hash = self.bitcoind('getblockhash', [self.storage.height + 1])
- next_block = self.getfullblock(next_block_hash)
+ next_block = self.bitcoind('getblockbynumber', [self.storage.height + 1, True])
+ next_block_hash = next_block.get('hash')
self.mtime('daemon')
# fixme: this is unsafe, if we revert when the undo info is not yet written
else:
# revert current block
- block = self.getfullblock(self.storage.last_hash)
+ block = self.bitcoind('getblock', [self.storage.last_hash, True])
print_log("blockchain reorg", self.storage.height, block.get('previousblockhash'), self.storage.last_hash)
self.import_block(block, self.storage.last_hash, self.storage.height, sync, revert=True)
self.pop_header()
value = v[ x.get('prevout_n')]
else:
txi = (x.get('prevout_hash') + int_to_hex(x.get('prevout_n'), 4)).decode('hex')
- value = self.storage.get_utxo_value(addr,txi)
+ try:
+ value = self.storage.get_utxo_value(addr,txi)
+ except:
+ print_log("utxo not in database; postponing mempool update")
+ return
v = mpa.get(addr,0)
v -= value