def print_time(self, num_tx):
delta = time.time() - self.time_ref
# leaky averages
seconds_per_block, tx_per_second, n = self.avg_time
alpha = (1. + 0.01 * n) / (n + 1)
seconds_per_block = (1 - alpha) * seconds_per_block + alpha * delta
alpha2 = alpha * delta / seconds_per_block
tx_per_second = (1 - alpha2) * tx_per_second + alpha2 * num_tx / delta
self.avg_time = seconds_per_block, tx_per_second, n + 1
if self.storage.height % 100 == 0 \
or (self.storage.height % 10 == 0 and self.storage.height >= 100000) \
or self.storage.height >= 200000:
msg = "block %d (%d %.2fs) %s" % (
self.storage.height, num_tx, delta, self.storage.get_root_hash().encode('hex'))
msg += " (%.2ftx/s, %.2fs/block)" % (tx_per_second, seconds_per_block)
run_blocks = self.storage.height - self.start_catchup_height
remaining_blocks = self.lbrycrdd_height - self.storage.height
if run_blocks > 0 and remaining_blocks > 0:
remaining_minutes = remaining_blocks * seconds_per_block / 60
new_blocks = int(remaining_minutes / 10) # number of new blocks expected during catchup
blocks_to_process = remaining_blocks + new_blocks
minutes = blocks_to_process * seconds_per_block / 60
rt = "%.0fmin" % minutes if minutes < 300 else "%.1f hours" % (minutes / 60)
msg += " (eta %s, %d blocks)" % (rt, remaining_blocks)
print_log(msg)
def get_path(self, target, new=False):
x = self.db_utxo.get(target)
if not new and x is None:
raise BaseException('key not in tree', target.encode('hex'))
if new and x is not None:
# raise BaseException('key already in tree', target.encode('hex'))
# occurs at block 91880 (duplicate txid)
print_log('key already in tree', target.encode('hex'))
return True
remaining = target
key = ''
path = []
while key != target:
node = self.get_node(key)
if node is None:
break
# raise # should never happen
path.append(key)
c = remaining[0]
if not node.has(c):
break
skip = self.get_skip(key + c)
key = key + c + skip
if not target.startswith(key):
break
remaining = target[len(key):]
return path
def catch_up(self, sync=True):
self.start_catchup_height = self.storage.height
prev_root_hash = None
n = 0
while not self.shared.stopped():
# are we done yet?
info = self.lbrycrdd('getinfo')
self.relayfee = info.get('relayfee')
self.lbrycrdd_height = info.get('blocks')
lbrycrdd_block_hash = self.lbrycrdd('getblockhash', (self.lbrycrdd_height,))
if self.storage.last_hash == lbrycrdd_block_hash:
self.up_to_date = True
break
self.set_time()
revert = (random.randint(1, 100) == 1) if self.test_reorgs and self.storage.height > 100 else False
# not done..
self.up_to_date = False
try:
next_block_hash = self.lbrycrdd('getblockhash', (self.storage.height + 1,))
except BaseException, e:
revert = True
next_block = self.get_block(next_block_hash if not revert else self.storage.last_hash)
if (next_block.get('previousblockhash') == self.storage.last_hash) and not revert:
prev_root_hash = self.storage.get_root_hash()
n = self.import_block(next_block, next_block_hash, self.storage.height + 1)
self.storage.height = self.storage.height + 1
self.write_header(self.block2header(next_block), sync)
self.storage.last_hash = next_block_hash
else:
# revert current block
block = self.get_block(self.storage.last_hash)
print_log("blockchain reorg", self.storage.height, block.get('previousblockhash'),
self.storage.last_hash)
n = self.import_block(block, self.storage.last_hash, self.storage.height, revert=True)
self.pop_header()
self.flush_headers()
self.storage.height -= 1
# read previous header from disk
self.header = self.read_header(self.storage.height)
self.storage.last_hash = self.hash_header(self.header)
if prev_root_hash:
assert prev_root_hash == self.storage.get_root_hash()
prev_root_hash = None
# print time
self.print_time(n)
def __init__(self, config, shared):
Processor.__init__(self)
# monitoring
self.short_term_cache, self.long_term_cache = setup_caching(config)
self.avg_time = 0, 0, 0
self.time_ref = time.time()
self.shared = shared
self.config = config
self.up_to_date = False
self.watch_lock = threading.Lock()
self.watch_blocks = []
self.watch_headers = []
self.watched_addresses = {}
self.history_cache = {}
self.merkle_cache = {}
self.max_cache_size = 100000
self.chunk_cache = {}
self.cache_lock = threading.Lock()
self.headers_data = ''
self.headers_path = config.get('leveldb', 'path')
self.mempool_values = {}
self.mempool_addresses = {}
self.mempool_hist = {} # addr -> (txid, delta)
self.mempool_hashes = set()
self.mempool_lock = threading.Lock()
self.address_queue = Queue()
try:
self.test_reorgs = config.getboolean('leveldb', 'test_reorgs') # simulate random blockchain reorgs
except:
self.test_reorgs = False
self.storage = ClaimsStorage(config, shared, self.test_reorgs)
self.lbrycrdd_url = 'http://%s:%s@%s:%s/' % (
config.get('lbrycrdd', 'lbrycrdd_user'),
config.get('lbrycrdd', 'lbrycrdd_password'),
config.get('lbrycrdd', 'lbrycrdd_host'),
config.get('lbrycrdd', 'lbrycrdd_port'))
self.sent_height = 0
self.sent_header = None
# catch_up headers
self.init_headers(self.storage.height)
# start catch_up thread
if config.getboolean('leveldb', 'profiler'):
filename = os.path.join(config.get('leveldb', 'path'), 'profile')
print_log('profiled thread', filename)
self.blockchain_thread = ProfiledThread(filename, target=self.do_catch_up)
else:
self.blockchain_thread = threading.Thread(target=self.do_catch_up)
self.blockchain_thread.start()
def get_mempool_transaction(self, txid):
try:
raw_tx = self.lbrycrdd('getrawtransaction', (txid, 0))
except:
print_log("Error looking up txid: %s" % txid)
return None
vds = deserialize.BCDataStream()
vds.write(raw_tx.decode('hex'))
try:
return deserialize.parse_Transaction(vds, is_coinbase=False)
except:
print_log("ERROR: cannot parse", txid)
return None
def cmd_transaction_broadcast(self, raw_transaction):
raw_transaction = str(raw_transaction)
try:
txo = self.lbrycrdd('sendrawtransaction', (raw_transaction, ))
print_log("sent tx:", txo)
result = txo
except BaseException, e:
error = e.args[0]
if error["code"] == -26:
# If we return anything that's not the transaction hash,
# it's considered an error message
message = error["message"]
result = "The transaction was rejected by network rules.(%s)\n[%s]" % (
message, raw_transaction)
else:
result = error["message"] # do send an error
print_log("error:", result)
def cmd_transaction_broadcast(self, raw_transaction):
raw_transaction = str(raw_transaction)
try:
txo = self.lbrycrdd('sendrawtransaction', (raw_transaction,))
print_log("sent tx:", txo)
result = txo
except BaseException, e:
error = e.args[0]
if error["code"] == -26:
# If we return anything that's not the transaction hash,
# it's considered an error message
message = error["message"]
result = "The transaction was rejected by network rules.(%s)\n[%s]" % (
message, raw_transaction)
else:
result = error["message"] # do send an error
print_log("error:", result)
def deserialize_block(block):
txlist = block.get('tx')
tx_hashes = [] # ordered txids
txdict = {} # deserialized tx
is_coinbase = True
for raw_tx in txlist:
tx_hash = hash_encode(Hash(raw_tx.decode('hex')))
vds = deserialize.BCDataStream()
vds.write(raw_tx.decode('hex'))
try:
tx = deserialize.parse_Transaction(vds, is_coinbase)
except:
print_log("ERROR: cannot parse", tx_hash)
continue
tx_hashes.append(tx_hash)
txdict[tx_hash] = tx
is_coinbase = False
return tx_hashes, txdict
def deserialize_block(block):
txlist = block.get('tx')
tx_hashes = [] # ordered txids
txdict = {} # deserialized tx
is_coinbase = True
for raw_tx in txlist:
tx_hash = hash_encode(Hash(raw_tx.decode('hex')))
vds = deserialize.BCDataStream()
vds.write(raw_tx.decode('hex'))
try:
tx = deserialize.parse_Transaction(vds, is_coinbase)
except:
print_log("ERROR: cannot parse", tx_hash)
continue
tx_hashes.append(tx_hash)
txdict[tx_hash] = tx
is_coinbase = False
return tx_hashes, txdict
def main_iteration(self):
if self.shared.stopped():
print_log("Stopping timer")
return
self.catch_up()
self.memorypool_update()
if self.sent_height != self.storage.height:
self.sent_height = self.storage.height
for session in self.watch_blocks:
self.push_response(
session, {
'id': None,
'method': 'blockchain.numblocks.subscribe',
'params': (self.storage.height, ),
})
if self.sent_header != self.header:
self.sent_header = self.header
for session in self.watch_headers:
self.push_response(
session, {
'id': None,
'method': 'blockchain.headers.subscribe',
'params': (self.header, ),
})
while True:
try:
addr, sessions = self.address_queue.get(False)
except:
break
status = self.get_status(addr)
for session in sessions:
self.push_response(
session, {
'id': None,
'method': 'blockchain.address.subscribe',
'params': (addr, status),
})
def do_unsubscribe(self, method, params, session):
with self.watch_lock:
if method == 'blockchain.numblocks.subscribe':
if session in self.watch_blocks:
self.watch_blocks.remove(session)
elif method == 'blockchain.headers.subscribe':
if session in self.watch_headers:
self.watch_headers.remove(session)
elif method == "blockchain.address.subscribe":
addr = params[0]
l = self.watched_addresses.get(addr)
if not l:
return
if session in l:
l.remove(session)
if session in l:
print_log("error rc!!")
self.shared.stop()
if not l:
self.watched_addresses.pop(addr)
def do_unsubscribe(self, method, params, session):
with self.watch_lock:
if method == 'blockchain.numblocks.subscribe':
if session in self.watch_blocks:
self.watch_blocks.remove(session)
elif method == 'blockchain.headers.subscribe':
if session in self.watch_headers:
self.watch_headers.remove(session)
elif method == "blockchain.address.subscribe":
addr = params[0]
l = self.watched_addresses.get(addr)
if not l:
return
if session in l:
l.remove(session)
if session in l:
print_log("error rc!!")
self.shared.stop()
if not l:
self.watched_addresses.pop(addr)
def listunspent(self, addr):
key = self.address_to_key(addr)
if key is None:
raise BaseException('Invalid lbrycrd address', addr)
out = []
with self.db_utxo.lock:
for k, v in self.db_utxo.db.iterator(start=key):
if not k.startswith(key):
break
if len(k) == KEYLENGTH:
txid = k[20:52].encode('hex')
txpos = hex_to_int(k[52:56])
h = hex_to_int(v[8:12])
v = hex_to_int(v[0:8])
out.append({'tx_hash': txid, 'tx_pos': txpos, 'height': h, 'value': v})
if len(out) == 1000:
print_log('addr has large amount of utxos', addr)
out.sort(key=lambda x: x['height'])
return out
def listunspent(self, addr):
key = self.address_to_key(addr)
if key is None:
raise BaseException('Invalid lbrycrd address', addr)
out = []
with self.db_utxo.lock:
for k, v in self.db_utxo.db.iterator(start=key):
if not k.startswith(key):
break
if len(k) == KEYLENGTH:
txid = k[20:52].encode('hex')
txpos = hex_to_int(k[52:56])
h = hex_to_int(v[8:12])
v = hex_to_int(v[0:8])
out.append({'tx_hash': txid, 'tx_pos': txpos, 'height': h, 'value': v})
if len(out) == 1000:
print_log('max utxo reached', addr)
break
out.sort(key=lambda x: x['height'])
return out
def main_iteration(self):
if self.shared.stopped():
print_log("Stopping timer")
return
self.catch_up()
self.memorypool_update()
if self.sent_height != self.storage.height:
self.sent_height = self.storage.height
for session in self.watch_blocks:
self.push_response(session, {
'id': None,
'method': 'blockchain.numblocks.subscribe',
'params': (self.storage.height,),
})
if self.sent_header != self.header:
self.sent_header = self.header
for session in self.watch_headers:
self.push_response(session, {
'id': None,
'method': 'blockchain.headers.subscribe',
'params': (self.header,),
})
while True:
try:
addr, sessions = self.address_queue.get(False)
except:
break
status = self.get_status(addr)
for session in sessions:
self.push_response(session, {
'id': None,
'method': 'blockchain.address.subscribe',
'params': (addr, status),
})
def do_catch_up(self):
self.header = self.block2header(self.lbrycrdd('getblock', (self.storage.last_hash,)))
self.header['utxo_root'] = self.storage.get_root_hash().encode('hex')
self.catch_up(sync=False)
if not self.shared.stopped():
print_log("Blockchain is up to date.")
self.memorypool_update()
print_log("Memory pool initialized.")
while not self.shared.stopped():
self.main_iteration()
if self.shared.paused():
print_log("lbrycrdd is responding")
self.shared.unpause()
time.sleep(0.1)
def do_catch_up(self):
self.header = self.block2header(
self.lbrycrdd('getblock', (self.storage.last_hash, )))
self.header['utxo_root'] = self.storage.get_root_hash().encode('hex')
self.catch_up(sync=False)
if not self.shared.stopped():
print_log("Blockchain is up to date.")
self.memorypool_update()
print_log("Memory pool initialized.")
while not self.shared.stopped():
self.main_iteration()
if self.shared.paused():
print_log("lbrycrdd is responding")
self.shared.unpause()
time.sleep(10)
def init_headers(self, db_height):
self.headers_filename = os.path.join(self.headers_path,
'blockchain_headers')
if os.path.exists(self.headers_filename):
height = os.path.getsize(
self.headers_filename) / HEADER_SIZE - 1 # the current height
if height > 0:
prev_hash = self.hash_header(self.read_header(height))
else:
prev_hash = None
else:
open(self.headers_filename, 'wb').close()
prev_hash = None
height = -1
if height < db_height:
print_log("catching up missing headers:", height, db_height)
try:
while height < db_height:
height += 1
header = self.get_header(height)
if height > 1:
if prev_hash != header.get('prev_block_hash'):
# The prev_hash block is orphaned, go back
print_log("reorganizing, a block in file is orphaned:",
prev_hash)
# Go to the parent of the orphaned block
height -= 2
prev_hash = self.hash_header(self.read_header(height))
continue
self.write_header(header, sync=False)
prev_hash = self.hash_header(header)
if (height % 1000) == 0:
print_log("headers file:", height)
except KeyboardInterrupt:
self.flush_headers()
sys.exit()
self.flush_headers()
def add_request(self, session, request):
# see if we can get if from cache. if not, add request to queue
message_id = request.get('id')
try:
result = self.process(request, cache_only=False)
except BaseException as e:
print_log("Bad request from", session.address, str(type(e)), ":", str(e))
traceback.print_exc()
self.push_response(session, {'id': message_id, 'error': str(e)})
return
except:
logger.error("process error", exc_info=True)
print_log("error processing request from", session.address)
print_log(str(request))
self.push_response(session, {'id': message_id, 'error': 'unknown error'})
if result == -1:
self.queue.put((session, request))
else:
self.push_response(session, {'id': message_id, 'result': result})
def init_headers(self, db_height):
self.headers_filename = os.path.join(self.headers_path, 'blockchain_headers')
if os.path.exists(self.headers_filename):
height = os.path.getsize(self.headers_filename) / HEADER_SIZE - 1 # the current height
if height > 0:
prev_hash = self.hash_header(self.read_header(height))
else:
prev_hash = None
else:
open(self.headers_filename, 'wb').close()
prev_hash = None
height = -1
if height < db_height:
print_log("catching up missing headers:", height, db_height)
try:
while height < db_height:
height += 1
header = self.get_header(height)
if height > 1:
if prev_hash != header.get('prev_block_hash'):
# The prev_hash block is orphaned, go back
print_log("reorganizing, a block in file is orphaned:", prev_hash)
# Go to the parent of the orphaned block
height -= 2
prev_hash = self.hash_header(self.read_header(height))
continue
self.write_header(header, sync=False)
prev_hash = self.hash_header(header)
if (height % 1000) == 0:
print_log("headers file:", height)
except KeyboardInterrupt:
self.flush_headers()
sys.exit()
self.flush_headers()
def add_request(self, session, request):
# see if we can get if from cache. if not, add request to queue
message_id = request.get('id')
try:
result = self.process(request, cache_only=False)
except BaseException as e:
print_log("Bad request from", session.address, str(type(e)), ":",
str(e))
traceback.print_exc()
self.push_response(session, {'id': message_id, 'error': str(e)})
return
except:
logger.error("process error", exc_info=True)
print_log("error processing request from", session.address)
print_log(str(request))
self.push_response(session, {
'id': message_id,
'error': 'unknown error'
})
if result == -1:
self.queue.put((session, request))
else:
self.push_response(session, {'id': message_id, 'result': result})
def get_undo_info(self, height):
s = self.db_undo.get("undo_info_%d" % height)
if s is None:
print_log("no undo info for ", height)
return None
return pickle.loads(s)
def __init__(self, config, shared, test_reorgs):
self.shared = shared
self.hash_list = {}
self.parents = {}
self.skip_batch = {}
self.test_reorgs = test_reorgs
# init path
self.dbpath = config.get('leveldb', 'path')
if not os.path.exists(self.dbpath):
os.mkdir(self.dbpath)
try:
# key = address key, value = utxos
self.db_utxo = DB(self.dbpath, 'utxo',
config.getint('leveldb', 'utxo_cache'))
# key = address, value = history
self.db_hist = DB(self.dbpath, 'hist',
config.getint('leveldb', 'hist_cache'))
# key = outpoint, value = address
self.db_addr = DB(self.dbpath, 'addr',
config.getint('leveldb', 'addr_cache'))
# key = undo id, valude = undo info
self.db_undo = DB(self.dbpath, 'undo', None)
""" Below databases are for storing claim information """
# key = undo id, value = undo info
self.db_undo_claim = DB(self.dbpath, 'undo_claim',
256 * 1024 * 1024)
# key = claim id hex, value = txid hex sting + nout + amount
self.db_claim_outpoint = DB(
self.dbpath, 'claim_outpoint',
config.getint('leveldb', 'claimid_cache'))
# key = txid+ nout , value = claim id hex
self.db_outpoint_to_claim = DB(self.dbpath, 'outpoint_to_claim',
8 * 1024 * 1024)
# key = claim id hex, value = claim name
self.db_claim_names = DB(self.dbpath, 'claim_names',
64 * 1024 * 1024)
# key = claim id hex, value = claim value
self.db_claim_values = DB(
self.dbpath, 'claim_values',
config.getint('leveldb', 'claim_value_cache'))
# key = claim id hex, value = claim height
self.db_claim_height = DB(self.dbpath, 'claim_height',
4 * 1024 * 1024)
# key = claim id hex, value = address
self.db_claim_addrs = DB(self.dbpath, 'claim_addresses',
64 * 1024 * 1024)
# key = claim name, value = {claim_id:claim_sequence,}
self.db_claim_order = DB(self.dbpath, 'claim_order',
4 * 1024 * 1024)
# key = certificate claim_id hex, value = [claim_id,]
self.db_cert_to_claims = DB(self.dbpath, 'cert_to_claims',
256 * 1024 * 1024)
# key = claim id, value = certifcate claim id
self.db_claim_to_cert = DB(self.dbpath, 'claims_to_cert',
8 * 1024 * 1024)
except:
logger.error('db init', exc_info=True)
self.shared.stop()
try:
self.last_hash, self.height, db_version = ast.literal_eval(
self.db_undo.get('height'))
except:
print_log('Initializing database')
self.height = 0
self.last_hash = GENESIS_HASH
db_version = DB_VERSION
self.put_node('', Node.from_dict({}))
# check version
if db_version != DB_VERSION:
print_log(
"Your database '%s' is deprecated. Please create a new database"
% self.dbpath)
self.shared.stop()
return
# compute root hash
root_node = self.get_node('')
self.root_hash, coins = root_node.get_hash('', None)
# print stuff
print_log("Database version %d." % db_version)
print_log("Blockchain height", self.height)
print_log("UTXO tree root hash:", self.root_hash.encode('hex'))
print_log("Coins in database:", coins)
def lbrycrdd(self, method, args=()):
while True:
try:
r = AuthServiceProxy(self.lbrycrdd_url, method).__call__(*args)
return r
except JSONRPCException as j:
r = "no response"
print_log("Failed: %s%s" % (method, args))
if j.error['code'] == -28:
print_log("lbrycrdd still warming up...")
self.wait_on_lbrycrdd()
continue
elif j.error['code'] == -343:
print_log("missing JSON-RPC result")
raise BaseException(j.error)
elif j.error['code'] == -342:
print_log("missing HTTP response from server")
raise BaseException(j.error)
elif j.error['code'] == -1:
print_log("JSON value is not a string as expected: %s" % j)
raise BaseException(j.error)
else:
print_log(
"While calling %s(%s): JSONRPCException: " %
(method, args), j.error['message'])
raise BaseException(j.error)
class BlockchainProcessorBase(Processor):
def __init__(self, config, shared):
Processor.__init__(self)
# monitoring
self.avg_time = 0, 0, 0
self.time_ref = time.time()
self.shared = shared
self.config = config
self.up_to_date = False
self.watch_lock = threading.Lock()
self.watch_blocks = []
self.watch_headers = []
self.watched_addresses = {}
self.history_cache = {}
self.merkle_cache = {}
self.max_cache_size = 100000
self.chunk_cache = {}
self.cache_lock = threading.Lock()
self.headers_data = ''
self.headers_path = config.get('leveldb', 'path')
self.mempool_values = {}
self.mempool_addresses = {}
self.mempool_hist = {} # addr -> (txid, delta)
self.mempool_hashes = set()
self.mempool_lock = threading.Lock()
self.address_queue = Queue()
try:
self.test_reorgs = config.getboolean(
'leveldb', 'test_reorgs') # simulate random blockchain reorgs
except:
self.test_reorgs = False
self.storage = ClaimsStorage(config, shared, self.test_reorgs)
self.lbrycrdd_url = 'http://%s:%s@%s:%s/' % (
config.get('lbrycrdd', 'lbrycrdd_user'),
config.get('lbrycrdd', 'lbrycrdd_password'),
config.get('lbrycrdd', 'lbrycrdd_host'),
config.get('lbrycrdd', 'lbrycrdd_port'))
self.sent_height = 0
self.sent_header = None
# catch_up headers
self.init_headers(self.storage.height)
# start catch_up thread
if config.getboolean('leveldb', 'profiler'):
filename = os.path.join(config.get('leveldb', 'path'), 'profile')
print_log('profiled thread', filename)
self.blockchain_thread = ProfiledThread(filename,
target=self.do_catch_up)
else:
self.blockchain_thread = threading.Thread(target=self.do_catch_up)
self.blockchain_thread.start()
def do_catch_up(self):
self.header = self.block2header(
self.lbrycrdd('getblock', (self.storage.last_hash, )))
self.header['utxo_root'] = self.storage.get_root_hash().encode('hex')
self.catch_up(sync=False)
if not self.shared.stopped():
print_log("Blockchain is up to date.")
self.memorypool_update()
print_log("Memory pool initialized.")
while not self.shared.stopped():
self.main_iteration()
if self.shared.paused():
print_log("lbrycrdd is responding")
self.shared.unpause()
time.sleep(10)
def set_time(self):
self.time_ref = time.time()
def print_time(self, num_tx):
delta = time.time() - self.time_ref
# leaky averages
seconds_per_block, tx_per_second, n = self.avg_time
alpha = (1. + 0.01 * n) / (n + 1)
seconds_per_block = (1 - alpha) * seconds_per_block + alpha * delta
alpha2 = alpha * delta / seconds_per_block
tx_per_second = (1 - alpha2) * tx_per_second + alpha2 * num_tx / delta
self.avg_time = seconds_per_block, tx_per_second, n + 1
if self.storage.height % 100 == 0 \
or (self.storage.height % 10 == 0 and self.storage.height >= 100000) \
or self.storage.height >= 200000:
msg = "block %d (%d %.2fs) %s" % (
self.storage.height, num_tx, delta,
self.storage.get_root_hash().encode('hex'))
msg += " (%.2ftx/s, %.2fs/block)" % (tx_per_second,
seconds_per_block)
run_blocks = self.storage.height - self.start_catchup_height
remaining_blocks = self.lbrycrdd_height - self.storage.height
if run_blocks > 0 and remaining_blocks > 0:
remaining_minutes = remaining_blocks * seconds_per_block / 60
new_blocks = int(
remaining_minutes /
10) # number of new blocks expected during catchup
blocks_to_process = remaining_blocks + new_blocks
minutes = blocks_to_process * seconds_per_block / 60
rt = "%.0fmin" % minutes if minutes < 300 else "%.1f hours" % (
minutes / 60)
msg += " (eta %s, %d blocks)" % (rt, remaining_blocks)
print_log(msg)
def wait_on_lbrycrdd(self):
self.shared.pause()
time.sleep(10)
if self.shared.stopped():
# this will end the thread
raise BaseException()
def lbrycrdd(self, method, args=()):
while True:
try:
r = AuthServiceProxy(self.lbrycrdd_url, method).__call__(*args)
return r
except JSONRPCException as j:
r = "no response"
print_log("Failed: %s%s" % (method, args))
if j.error['code'] == -28:
print_log("lbrycrdd still warming up...")
self.wait_on_lbrycrdd()
continue
elif j.error['code'] == -343:
print_log("missing JSON-RPC result")
raise BaseException(j.error)
elif j.error['code'] == -342:
print_log("missing HTTP response from server")
raise BaseException(j.error)
elif j.error['code'] == -1:
print_log("JSON value is not a string as expected: %s" % j)
raise BaseException(j.error)
else:
print_log(
"While calling %s(%s): JSONRPCException: " %
(method, args), j.error['message'])
raise BaseException(j.error)
@staticmethod
def block2header(b):
return {
"block_height": b.get('height'),
"version": b.get('version'),
"prev_block_hash": b.get('previousblockhash'),
"merkle_root": b.get('merkleroot'),
"claim_trie_root": b.get('nameclaimroot'),
"timestamp": b.get('time'),
"bits": int(b.get('bits'), 16),
"nonce": b.get('nonce'),
}
def get_header(self, height):
block_hash = self.lbrycrdd('getblockhash', (height, ))
b = self.lbrycrdd('getblock', (block_hash, ))
return self.block2header(b)
def init_headers(self, db_height):
self.headers_filename = os.path.join(self.headers_path,
'blockchain_headers')
if os.path.exists(self.headers_filename):
height = os.path.getsize(
self.headers_filename) / HEADER_SIZE - 1 # the current height
if height > 0:
prev_hash = self.hash_header(self.read_header(height))
else:
prev_hash = None
else:
open(self.headers_filename, 'wb').close()
prev_hash = None
height = -1
if height < db_height:
print_log("catching up missing headers:", height, db_height)
try:
while height < db_height:
height += 1
header = self.get_header(height)
if height > 1:
if prev_hash != header.get('prev_block_hash'):
# The prev_hash block is orphaned, go back
print_log("reorganizing, a block in file is orphaned:",
prev_hash)
# Go to the parent of the orphaned block
height -= 2
prev_hash = self.hash_header(self.read_header(height))
continue
self.write_header(header, sync=False)
prev_hash = self.hash_header(header)
if (height % 1000) == 0:
print_log("headers file:", height)
except KeyboardInterrupt:
self.flush_headers()
sys.exit()
self.flush_headers()
@staticmethod
def hash_header(header):
return rev_hex(
Hash(header_to_string(header).decode('hex')).encode('hex'))
def read_header(self, block_height):
if os.path.exists(self.headers_filename):
with open(self.headers_filename, 'rb') as f:
f.seek(block_height * HEADER_SIZE)
h = f.read(HEADER_SIZE)
if len(h) == HEADER_SIZE:
h = header_from_string(h)
return h
def read_chunk(self, index):
with open(self.headers_filename, 'rb') as f:
f.seek(index * BLOCKS_PER_CHUNK * HEADER_SIZE)
chunk = f.read(BLOCKS_PER_CHUNK * HEADER_SIZE)
return chunk.encode('hex')
def write_header(self, header, sync=True):
if not self.headers_data:
self.headers_offset = header.get('block_height')
self.headers_data += header_to_string(header).decode('hex')
if sync or len(self.headers_data) > 40 * 100:
self.flush_headers()
with self.cache_lock:
chunk_index = header.get('block_height') / BLOCKS_PER_CHUNK
if self.chunk_cache.get(chunk_index):
self.chunk_cache.pop(chunk_index)
def pop_header(self):
# we need to do this only if we have not flushed
if self.headers_data:
self.headers_data = self.headers_data[:-40]
def flush_headers(self):
if not self.headers_data:
return
with open(self.headers_filename, 'rb+') as f:
f.seek(self.headers_offset * HEADER_SIZE)
f.write(self.headers_data)
self.headers_data = ''
def get_chunk(self, i):
# store them on disk; store the current chunk in memory
with self.cache_lock:
chunk = self.chunk_cache.get(i)
if not chunk:
chunk = self.read_chunk(i)
if chunk:
self.chunk_cache[i] = chunk
return chunk
def get_mempool_transaction(self, txid):
try:
raw_tx = self.lbrycrdd('getrawtransaction', (txid, 0))
except:
print_log("Error looking up txid: %s" % txid)
return None
vds = deserialize.BCDataStream()
vds.write(raw_tx.decode('hex'))
try:
return deserialize.parse_Transaction(vds, is_coinbase=False)
except:
print_log("ERROR: cannot parse", txid)
return None
def get_history(self, addr, cache_only=False):
with self.cache_lock:
hist = self.history_cache.get(addr)
if hist is not None:
return sorted(hist, key=lambda x: x['height'])
if cache_only:
return -1
hist = self.storage.get_history(addr)
# add memory pool
with self.mempool_lock:
for txid, delta in self.mempool_hist.get(addr, ()):
hist.append({'tx_hash': txid, 'height': 0})
with self.cache_lock:
if len(self.history_cache) > self.max_cache_size:
logger.info("clearing cache")
self.history_cache.clear()
self.history_cache[addr] = hist
return sorted(hist, key=lambda x: x['height'])
def get_unconfirmed_history(self, addr):
hist = []
with self.mempool_lock:
for txid, delta in self.mempool_hist.get(addr, ()):
hist.append({'tx_hash': txid, 'height': 0})
return sorted(hist, key=lambda x: x['height'])
def get_unconfirmed_value(self, addr):
v = 0
with self.mempool_lock:
for txid, delta in self.mempool_hist.get(addr, ()):
v += delta
return v
def get_status(self, addr, cache_only=False):
tx_points = self.get_history(addr, cache_only)
if cache_only and tx_points == -1:
return -1
if not tx_points:
return None
if tx_points == ['*']:
return '*'
status = ''.join(
tx.get('tx_hash') + ':%d:' % tx.get('height') for tx in tx_points)
return hashlib.sha256(status).digest().encode('hex')
def get_merkle(self, tx_hash, height, cache_only):
with self.cache_lock:
out = self.merkle_cache.get(tx_hash)
if out is not None:
return out
if cache_only:
return -1
block_hash = self.lbrycrdd('getblockhash', (height, ))
b = self.lbrycrdd('getblock', (block_hash, ))
tx_list = b.get('tx')
tx_pos = tx_list.index(tx_hash)
merkle = map(hash_decode, tx_list)
target_hash = hash_decode(tx_hash)
s = []
while len(merkle) != 1:
if len(merkle) % 2:
merkle.append(merkle[-1])
n = []
while merkle:
new_hash = Hash(merkle[0] + merkle[1])
if merkle[0] == target_hash:
s.append(hash_encode(merkle[1]))
target_hash = new_hash
elif merkle[1] == target_hash:
s.append(hash_encode(merkle[0]))
target_hash = new_hash
n.append(new_hash)
merkle = merkle[2:]
merkle = n
out = {"block_height": height, "merkle": s, "pos": tx_pos}
with self.cache_lock:
if len(self.merkle_cache) > self.max_cache_size:
logger.info("clearing merkle cache")
self.merkle_cache.clear()
self.merkle_cache[tx_hash] = out
return out
@staticmethod
def deserialize_block(block):
txlist = block.get('tx')
tx_hashes = [] # ordered txids
txdict = {} # deserialized tx
is_coinbase = True
for raw_tx in txlist:
tx_hash = hash_encode(Hash(raw_tx.decode('hex')))
vds = deserialize.BCDataStream()
vds.write(raw_tx.decode('hex'))
try:
tx = deserialize.parse_Transaction(vds, is_coinbase)
except:
print_log("ERROR: cannot parse", tx_hash)
continue
tx_hashes.append(tx_hash)
txdict[tx_hash] = tx
is_coinbase = False
return tx_hashes, txdict
def import_block(self, block, block_hash, block_height, revert=False):
touched_addr = set()
# deserialize transactions
tx_hashes, txdict = self.deserialize_block(block)
# undo info
if revert:
undo_info = self.storage.get_undo_info(block_height)
claim_undo_info = self.storage.get_undo_claim_info(block_height)
tx_hashes.reverse()
else:
undo_info = {}
claim_undo_info = {}
for txid in tx_hashes: # must be ordered
tx = txdict[txid]
if not revert:
undo = self.storage.import_transaction(txid, tx, block_height,
touched_addr)
undo_info[txid] = undo
undo = self.storage.import_claim_transaction(
txid, tx, block_height)
claim_undo_info[txid] = undo
else:
undo = undo_info.pop(txid)
self.storage.revert_transaction(txid, tx, block_height,
touched_addr, undo)
undo = claim_undo_info.pop(txid)
self.storage.revert_claim_transaction(undo)
if revert:
assert claim_undo_info == {}
assert undo_info == {}
# add undo info
if not revert:
self.storage.write_undo_info(block_height, undo_info)
self.storage.write_undo_claim_info(block_height, claim_undo_info)
# add the max
self.storage.save_height(block_hash, block_height)
for addr in touched_addr:
self.invalidate_cache(addr)
self.storage.update_hashes()
# batch write modified nodes
self.storage.batch_write()
# return length for monitoring
return len(tx_hashes)
def add_request(self, session, request):
# see if we can get if from cache. if not, add request to queue
message_id = request.get('id')
try:
result = self.process(request, cache_only=False)
except BaseException as e:
print_log("Bad request from", session.address, str(type(e)), ":",
str(e))
traceback.print_exc()
self.push_response(session, {'id': message_id, 'error': str(e)})
return
except:
logger.error("process error", exc_info=True)
print_log("error processing request from", session.address)
print_log(str(request))
self.push_response(session, {
'id': message_id,
'error': 'unknown error'
})
if result == -1:
self.queue.put((session, request))
else:
self.push_response(session, {'id': message_id, 'result': result})
def get_claim_info(self, claim_id):
result = {}
claim_id = str(claim_id)
logger.debug("get_claim_info claim_id:{}".format(claim_id))
claim_name = self.storage.get_claim_name(claim_id)
claim_value = self.storage.get_claim_value(claim_id)
claim_out = self.storage.get_outpoint_from_claim_id(claim_id)
claim_height = self.storage.get_claim_height(claim_id)
claim_address = self.storage.get_claim_address(claim_id)
if claim_name and claim_id:
claim_sequence = self.storage.get_n_for_name_and_claimid(
claim_name, claim_id)
else:
claim_sequence = None
if None not in (claim_name, claim_value, claim_out, claim_height,
claim_sequence):
claim_txid, claim_nout, claim_amount = claim_out
claim_value = claim_value.encode('hex')
result = {
"name": claim_name,
"claim_id": claim_id,
"txid": claim_txid,
"nout": claim_nout,
"amount": claim_amount,
"depth": self.lbrycrdd_height - claim_height,
"height": claim_height,
"value": claim_value,
"claim_sequence": claim_sequence,
"address": claim_address
}
lbrycrdd_results = self.lbrycrdd("getclaimsforname",
(claim_name, ))
lbrycrdd_claim = None
if lbrycrdd_results:
for claim in lbrycrdd_results['claims']:
if claim['claimId'] == claim_id and claim[
'txid'] == claim_txid and claim['n'] == claim_nout:
lbrycrdd_claim = claim
break
if lbrycrdd_claim:
result['supports'] = [[
support['txid'], support['n'], support['nAmount']
] for support in lbrycrdd_claim['supports']]
result['effective_amount'] = lbrycrdd_claim[
'nEffectiveAmount']
result['valid_at_height'] = lbrycrdd_claim[
'nValidAtHeight']
return result
def get_block(self, block_hash):
block = self.lbrycrdd('getblock', (block_hash, ))
while True:
try:
response = [
self.lbrycrdd("getrawtransaction", (txid, ))
for txid in block['tx']
]
except:
logger.error("lbrycrdd error (getfullblock)")
self.wait_on_lbrycrdd()
continue
block['tx'] = response
return block
def catch_up(self, sync=True):
self.start_catchup_height = self.storage.height
prev_root_hash = None
n = 0
while not self.shared.stopped():
# are we done yet?
info = self.lbrycrdd('getinfo')
self.relayfee = info.get('relayfee')
self.lbrycrdd_height = info.get('blocks')
lbrycrdd_block_hash = self.lbrycrdd('getblockhash',
(self.lbrycrdd_height, ))
if self.storage.last_hash == lbrycrdd_block_hash:
self.up_to_date = True
break
self.set_time()
revert = (
random.randint(1, 100) == 1
) if self.test_reorgs and self.storage.height > 100 else False
# not done..
self.up_to_date = False
try:
next_block_hash = self.lbrycrdd('getblockhash',
(self.storage.height + 1, ))
except BaseException, e:
revert = True
next_block = self.get_block(
next_block_hash if not revert else self.storage.last_hash)
if (next_block.get('previousblockhash')
== self.storage.last_hash) and not revert:
prev_root_hash = self.storage.get_root_hash()
n = self.import_block(next_block, next_block_hash,
self.storage.height + 1)
self.storage.height = self.storage.height + 1
self.write_header(self.block2header(next_block), sync)
self.storage.last_hash = next_block_hash
else:
# revert current block
block = self.get_block(self.storage.last_hash)
print_log("blockchain reorg", self.storage.height,
block.get('previousblockhash'),
self.storage.last_hash)
n = self.import_block(block,
self.storage.last_hash,
self.storage.height,
revert=True)
self.pop_header()
self.flush_headers()
self.storage.height -= 1
# read previous header from disk
self.header = self.read_header(self.storage.height)
self.storage.last_hash = self.hash_header(self.header)
if prev_root_hash:
assert prev_root_hash == self.storage.get_root_hash()
prev_root_hash = None
# print time
self.print_time(n)
self.header = self.block2header(
self.lbrycrdd('getblock', (self.storage.last_hash, )))
self.header['utxo_root'] = self.storage.get_root_hash().encode('hex')
if self.shared.stopped():
print_log("closing database")
self.storage.close()
def get_undo_info(self, height):
s = self.db_undo.get("undo_info_%d" % height)
if s is None:
print_log("no undo info for ", height)
return None
return msgpack.unpackb(s)
def catch_up(self, sync=True):
self.start_catchup_height = self.storage.height
prev_root_hash = None
n = 0
while not self.shared.stopped():
# are we done yet?
info = self.lbrycrdd('getinfo')
self.relayfee = info.get('relayfee')
self.lbrycrdd_height = info.get('blocks')
lbrycrdd_block_hash = self.lbrycrdd('getblockhash',
(self.lbrycrdd_height, ))
if self.storage.last_hash == lbrycrdd_block_hash:
self.up_to_date = True
break
self.set_time()
revert = (
random.randint(1, 100) == 1
) if self.test_reorgs and self.storage.height > 100 else False
# not done..
self.up_to_date = False
try:
next_block_hash = self.lbrycrdd('getblockhash',
(self.storage.height + 1, ))
except BaseException, e:
revert = True
next_block = self.get_block(
next_block_hash if not revert else self.storage.last_hash)
if (next_block.get('previousblockhash')
== self.storage.last_hash) and not revert:
prev_root_hash = self.storage.get_root_hash()
n = self.import_block(next_block, next_block_hash,
self.storage.height + 1)
self.storage.height = self.storage.height + 1
self.write_header(self.block2header(next_block), sync)
self.storage.last_hash = next_block_hash
else:
# revert current block
block = self.get_block(self.storage.last_hash)
print_log("blockchain reorg", self.storage.height,
block.get('previousblockhash'),
self.storage.last_hash)
n = self.import_block(block,
self.storage.last_hash,
self.storage.height,
revert=True)
self.pop_header()
self.flush_headers()
self.storage.height -= 1
# read previous header from disk
self.header = self.read_header(self.storage.height)
self.storage.last_hash = self.hash_header(self.header)
if prev_root_hash:
assert prev_root_hash == self.storage.get_root_hash()
prev_root_hash = None
# print time
self.print_time(n)
def close(self):
self.blockchain_thread.join()
print_log("Closing database...")
self.storage.close()
print_log("Database is closed")
def memorypool_update(self):
t0 = time.time()
mempool_hashes = set(self.lbrycrdd('getrawmempool'))
touched_addresses = set()
# get new transactions
new_tx = {}
for tx_hash in mempool_hashes:
if tx_hash in self.mempool_hashes:
continue
tx = self.get_mempool_transaction(tx_hash)
if not tx:
continue
new_tx[tx_hash] = tx
# remove older entries from mempool_hashes
self.mempool_hashes = mempool_hashes
# check all tx outputs
for tx_hash, tx in new_tx.iteritems():
mpa = self.mempool_addresses.get(tx_hash, {})
out_values = []
for x in tx.get('outputs'):
addr = x.get('address', '')
out_values.append((addr, x['value']))
if not addr:
continue
v = mpa.get(addr, 0)
v += x['value']
mpa[addr] = v
touched_addresses.add(addr)
self.mempool_addresses[tx_hash] = mpa
self.mempool_values[tx_hash] = out_values
# check all inputs
for tx_hash, tx in new_tx.iteritems():
mpa = self.mempool_addresses.get(tx_hash, {})
for x in tx.get('inputs'):
mpv = self.mempool_values.get(x.get('prevout_hash'))
if mpv:
addr, value = mpv[x.get('prevout_n')]
else:
txi = (x.get('prevout_hash') +
int_to_hex(x.get('prevout_n'), 4)).decode('hex')
try:
addr = self.storage.get_address(txi)
value = self.storage.get_utxo_value(addr, txi)
except:
print_log(
"utxo not in database; postponing mempool update")
return
if not addr:
continue
v = mpa.get(addr, 0)
v -= value
mpa[addr] = v
touched_addresses.add(addr)
self.mempool_addresses[tx_hash] = mpa
# remove deprecated entries from mempool_addresses
for tx_hash, addresses in self.mempool_addresses.items():
if tx_hash not in self.mempool_hashes:
self.mempool_addresses.pop(tx_hash)
self.mempool_values.pop(tx_hash)
touched_addresses.update(addresses)
# remove deprecated entries from mempool_hist
new_mempool_hist = {}
for addr in self.mempool_hist.iterkeys():
h = self.mempool_hist[addr]
hh = []
for tx_hash, delta in h:
if tx_hash in self.mempool_addresses:
hh.append((tx_hash, delta))
if hh:
new_mempool_hist[addr] = hh
# add new transactions to mempool_hist
for tx_hash in new_tx.iterkeys():
addresses = self.mempool_addresses[tx_hash]
for addr, delta in addresses.iteritems():
h = new_mempool_hist.get(addr, [])
if (tx_hash, delta) not in h:
h.append((tx_hash, delta))
new_mempool_hist[addr] = h
with self.mempool_lock:
self.mempool_hist = new_mempool_hist
# invalidate cache for touched addresses
for addr in touched_addresses:
self.invalidate_cache(addr)
t1 = time.time()
if t1 - t0 > 1:
print_log('mempool_update', t1 - t0, len(self.mempool_hashes),
len(self.mempool_hist))
def close(self):
self.blockchain_thread.join()
print_log("Closing database...")
self.storage.close()
print_log("Database is closed")
def lbrycrdd(self, method, args=()):
while True:
try:
r = AuthServiceProxy(self.lbrycrdd_url, method).__call__(*args)
return r
except JSONRPCException as j:
r = "no response"
print_log("Failed: %s%s" % (method, args))
if j.error['code'] == -28:
print_log("lbrycrdd still warming up...")
self.wait_on_lbrycrdd()
continue
elif j.error['code'] == -343:
print_log("missing JSON-RPC result")
raise BaseException(j.error)
elif j.error['code'] == -342:
print_log("missing HTTP response from server")
raise BaseException(j.error)
elif j.error['code'] == -1:
print_log("JSON value is not a string as expected: %s" % j)
raise BaseException(j.error)
else:
print_log(
"While calling %s(%s): JSONRPCException: " % (method, args),
j.error['message'])
raise BaseException(j.error)
def memorypool_update(self):
t0 = time.time()
mempool_hashes = set(self.lbrycrdd('getrawmempool'))
touched_addresses = set()
# get new transactions
new_tx = {}
for tx_hash in mempool_hashes:
if tx_hash in self.mempool_hashes:
continue
tx = self.get_mempool_transaction(tx_hash)
if not tx:
continue
new_tx[tx_hash] = tx
# remove older entries from mempool_hashes
self.mempool_hashes = mempool_hashes
# check all tx outputs
for tx_hash, tx in new_tx.iteritems():
mpa = self.mempool_addresses.get(tx_hash, {})
out_values = []
for x in tx.get('outputs'):
addr = x.get('address', '')
out_values.append((addr, x['value']))
if not addr:
continue
v = mpa.get(addr, 0)
v += x['value']
mpa[addr] = v
touched_addresses.add(addr)
self.mempool_addresses[tx_hash] = mpa
self.mempool_values[tx_hash] = out_values
# check all inputs
for tx_hash, tx in new_tx.iteritems():
mpa = self.mempool_addresses.get(tx_hash, {})
for x in tx.get('inputs'):
mpv = self.mempool_values.get(x.get('prevout_hash'))
if mpv:
addr, value = mpv[x.get('prevout_n')]
else:
txi = (x.get('prevout_hash') + int_to_hex(x.get('prevout_n'), 4)).decode('hex')
try:
addr = self.storage.get_address(txi)
value = self.storage.get_utxo_value(addr, txi)
except:
print_log("utxo not in database; postponing mempool update")
return
if not addr:
continue
v = mpa.get(addr, 0)
v -= value
mpa[addr] = v
touched_addresses.add(addr)
self.mempool_addresses[tx_hash] = mpa
# remove deprecated entries from mempool_addresses
for tx_hash, addresses in self.mempool_addresses.items():
if tx_hash not in self.mempool_hashes:
self.mempool_addresses.pop(tx_hash)
self.mempool_values.pop(tx_hash)
touched_addresses.update(addresses)
# remove deprecated entries from mempool_hist
new_mempool_hist = {}
for addr in self.mempool_hist.iterkeys():
h = self.mempool_hist[addr]
hh = []
for tx_hash, delta in h:
if tx_hash in self.mempool_addresses:
hh.append((tx_hash, delta))
if hh:
new_mempool_hist[addr] = hh
# add new transactions to mempool_hist
for tx_hash in new_tx.iterkeys():
addresses = self.mempool_addresses[tx_hash]
for addr, delta in addresses.iteritems():
h = new_mempool_hist.get(addr, [])
if (tx_hash, delta) not in h:
h.append((tx_hash, delta))
new_mempool_hist[addr] = h
with self.mempool_lock:
self.mempool_hist = new_mempool_hist
# invalidate cache for touched addresses
for addr in touched_addresses:
self.invalidate_cache(addr)
t1 = time.time()
if t1 - t0 > 1:
print_log('mempool_update', t1 - t0, len(self.mempool_hashes), len(self.mempool_hist))
def create_config(filename=None, lbrycrdd_dir=None):
config = ConfigParser.ConfigParser()
# set some defaults, which will be overwritten by the config file
config.add_section('server')
config.set('server', 'banner', 'Welcome to lbryum!')
config.set('server', 'host', 'localhost')
config.set('server', 'lbryum_rpc_port', '8000')
config.set('server', 'report_host', '')
config.set('server', 'stratum_tcp_port', '50001')
config.set('server', 'stratum_http_port', '')
config.set('server', 'stratum_tcp_ssl_port', '50002')
config.set('server', 'stratum_http_ssl_port', '')
config.set('server', 'report_stratum_tcp_port', '')
config.set('server', 'report_stratum_http_port', '')
config.set('server', 'report_stratum_tcp_ssl_port', '')
config.set('server', 'report_stratum_http_ssl_port', '')
config.set('server', 'ssl_certfile', '')
config.set('server', 'ssl_keyfile', '')
config.set('server', 'coin', '')
config.set('server', 'logfile', os.path.join(DEFAULT_LBRYUM_LOG_DIR, "lbryum.log"))
config.set('server', 'donation_address', '')
config.set('server', 'max_subscriptions', '15000')
config.add_section('leveldb')
config.set('leveldb', 'path', os.path.join(DEFAULT_DATA_DIR, 'lbryum_db'))
config.set('leveldb', 'utxo_cache', str(64 * 1024 * 1024))
config.set('leveldb', 'hist_cache', str(80 * 1024))
config.set('leveldb', 'addr_cache', str(16 * 1024 * 1024))
config.set('leveldb', 'claimid_cache', str(16 * 1024 * 1024 * 8))
config.set('leveldb', 'claim_value_cache', str(1024 * 1024 * 1024))
config.set('leveldb', 'profiler', 'no')
# Beaker caching
config.add_section('caching')
config.set('caching', 'data_dir', os.path.join(DEFAULT_DATA_DIR, 'beaker'))
config.set('caching', 'type', 'dbm')
config.set('caching', 'short_expire', '60')
config.set('caching', 'long_expire', '600')
# set network parameters
config.add_section('network')
config.set('network', 'type', 'lbrycrd_main')
# try to find the config file in the default paths
if not filename:
if sys.platform == "darwin":
filename = os.path.join(os.path.expanduser("~/"), 'lbryum.conf')
else:
for path in ('/etc/', ''):
filename = path + 'lbryum.conf'
if os.path.isfile(filename):
break
attempt_read_config(config, filename)
if sys.platform == "darwin":
default_lbrycrdd_dir = os.path.join(os.path.expanduser("~/"), "Library", "Application Support", "lbrycrd")
else:
default_lbrycrdd_dir = os.path.join(os.path.expanduser("~/"), ".lbrycrd")
lbrycrdd_dir = lbrycrdd_dir or default_lbrycrdd_dir
lbrycrdd_conf = os.path.join(lbrycrdd_dir, "lbrycrd.conf")
if os.path.isfile(lbrycrdd_conf):
print_log("loading lbrycrdd info")
load_lbrycrdd_connection_info(config, lbrycrdd_conf)
found_lbrycrdd = True
else:
print_log("no config for lbrycrdd found (%s)" % lbrycrdd_conf)
found_lbrycrdd = False
if not os.path.isfile(filename):
print 'could not find lbryum configuration file "%s"' % filename
if not found_lbrycrdd:
print "could not find lbrycrdd configutation file"
sys.exit(1)
return config
def __init__(self, config, shared, test_reorgs):
self.shared = shared
self.hash_list = {}
self.parents = {}
self.skip_batch = {}
self.test_reorgs = test_reorgs
# init path
self.dbpath = config.get('leveldb', 'path')
if not os.path.exists(self.dbpath):
os.mkdir(self.dbpath)
try:
# key = address key, value = utxos
self.db_utxo = DB(self.dbpath, 'utxo', config.getint('leveldb', 'utxo_cache'))
# key = address, value = history
self.db_hist = DB(self.dbpath, 'hist', config.getint('leveldb', 'hist_cache'))
# key = outpoint, value = address
self.db_addr = DB(self.dbpath, 'addr', config.getint('leveldb', 'addr_cache'))
# key = undo id, valude = undo info
self.db_undo = DB(self.dbpath, 'undo', None)
""" Below databases are for storing claim information """
# key = undo id, value = undo info
self.db_undo_claim = DB(self.dbpath, 'undo_claim', 256 * 1024 * 1024)
# key = claim id hex, value = txid hex sting + nout + amount
self.db_claim_outpoint = DB(self.dbpath, 'claim_outpoint', config.getint('leveldb', 'claimid_cache'))
# key = txid+ nout , value = claim id hex
self.db_outpoint_to_claim = DB(self.dbpath, 'outpoint_to_claim', 8*1024*1024)
# key = claim id hex, value = claim name
self.db_claim_names = DB(self.dbpath, 'claim_names', 64 * 1024 * 1024)
# key = claim id hex, value = claim value
self.db_claim_values = DB(self.dbpath, 'claim_values',
config.getint('leveldb', 'claim_value_cache'))
# key = claim id hex, value = claim height
self.db_claim_height = DB(self.dbpath, 'claim_height', 4 * 1024 * 1024)
# key = claim id hex, value = address
self.db_claim_addrs = DB(self.dbpath, 'claim_addresses', 64 * 1024 * 1024)
# key = claim name, value = {claim_id:claim_sequence,}
self.db_claim_order = DB(self.dbpath, 'claim_order', 4 * 1024 * 1024)
# key = certificate claim_id hex, value = [claim_id,]
self.db_cert_to_claims = DB(self.dbpath, 'cert_to_claims', 256 * 1024 * 1024)
# key = claim id, value = certifcate claim id
self.db_claim_to_cert = DB(self.dbpath, 'claims_to_cert', 8 * 1024 * 1024)
except:
logger.error('db init', exc_info=True)
self.shared.stop()
try:
self.last_hash, self.height, db_version = ast.literal_eval(self.db_undo.get('height'))
except:
print_log('Initializing database')
self.height = 0
self.last_hash = GENESIS_HASH
db_version = DB_VERSION
self.put_node('', Node.from_dict({}))
# check version
if db_version != DB_VERSION:
print_log("Your database '%s' is deprecated. Please create a new database" % self.dbpath)
self.shared.stop()
return
# compute root hash
root_node = self.get_node('')
self.root_hash, coins = root_node.get_hash('', None)
# print stuff
print_log("Database version %d." % db_version)
print_log("Blockchain height", self.height)
print_log("UTXO tree root hash:", self.root_hash.encode('hex'))
print_log("Coins in database:", coins)
def start_server(config, setup_logging=True):
global shared, chain_proc, server_proc, dispatcher
global tcp_server, ssl_server
logfile = config.get('server', 'logfile')
if setup_logging:
utils.init_logger(logfile)
host = config.get('server', 'host')
stratum_tcp_port = get_port(config, 'stratum_tcp_port')
stratum_http_port = get_port(config, 'stratum_http_port')
stratum_tcp_ssl_port = get_port(config, 'stratum_tcp_ssl_port')
stratum_http_ssl_port = get_port(config, 'stratum_http_ssl_port')
ssl_certfile = config.get('server', 'ssl_certfile')
ssl_keyfile = config.get('server', 'ssl_keyfile')
setup_network_settings(config)
if ssl_certfile is '' or ssl_keyfile is '':
stratum_tcp_ssl_port = None
stratum_http_ssl_port = None
print_log("Starting LBRYum server on", host)
# Create hub
dispatcher = Dispatcher(config)
shared = dispatcher.shared
# handle termination signals
def handler(signum=None, frame=None):
print_log('Signal handler called with signal', signum)
shared.stop()
for sig in [signal.SIGTERM, signal.SIGHUP, signal.SIGQUIT]:
signal.signal(sig, handler)
# Create and register processors
chain_proc = BlockchainProcessor(config, shared)
dispatcher.register('blockchain', chain_proc)
server_proc = ServerProcessor(config, shared)
dispatcher.register('server', server_proc)
# Create various transports we need
if stratum_tcp_port:
tcp_server = TcpServer(dispatcher, host, stratum_tcp_port, False, None, None)
transports.append(tcp_server)
if stratum_tcp_ssl_port:
ssl_server = TcpServer(dispatcher, host, stratum_tcp_ssl_port, True, ssl_certfile, ssl_keyfile)
transports.append(ssl_server)
if stratum_http_port:
http_server = HttpServer(dispatcher, host, stratum_http_port, False, None, None)
transports.append(http_server)
if stratum_http_ssl_port:
https_server = HttpServer(dispatcher, host, stratum_http_ssl_port, True, ssl_certfile, ssl_keyfile)
transports.append(https_server)
for server in transports:
server.start()
return transports
def handler(signum=None, frame=None):
print_log('Signal handler called with signal', signum)
shared.stop()
def stop_server():
shared.stop()
server_proc.join()
chain_proc.join()
print_log("LBRYum Server stopped")
def get_undo_info(self, height):
s = self.db_undo.get("undo_info_%d" % height)
if s is None:
print_log("no undo info for ", height)
return None
return msgpack.unpackb(s)
