def rpc_getblocktemplate(self, param):
if param['mode'] == 'template':
pass
elif param['mode'] == 'submit':
result = param['data']
block = help_data.block_type.unpack(result.decode('hex'))
if sum(tx_out['value']
for tx_out in block['txs'][0]['tx_outs']) != sum(
tx['tx_outs'][0]['value']
for tx in block['txs'][1:]) + 5000000000:
print 'invalid fee'
if block['header']['previous_block'] != self.blocks[-1]:
return False
if help_data.hash256(
result.decode('hex')) > block['header']['bits'].target:
return False
header_hash = help_data.hash256(
help_data.block_header_type.pack(block['header']))
self.blocks.append(header_hash)
self.headers[header_hash] = block['header']
reactor.callLater(0, self.new_block.happened)
return True
else:
raise jsonrpc.Error_for_code(-1)('invalid request')
txs = []
for i in xrange(100):
fee = i
txs.append(
dict(
data=help_data.tx_type.pack(
dict(version=1,
type=0,
tx_ins=[],
tx_outs=[dict(value=fee, script='hello!' * 100)],
lock_time=0,
extra_payload=None)).encode('hex'),
fee=fee,
))
return {
"version": 3,
"previousblockhash": '%064x' % (self.blocks[-1], ),
"transactions": txs,
"coinbaseaux": {
"flags": "062f503253482f"
},
"coinbasevalue": 5000000000 + sum(tx['fee'] for tx in txs),
"target":
"00000000000044b9f20000000000000000000000000000000000000000000000",
"mintime": 1351655621,
"mutable": ["time", "transactions", "prevblock"],
"noncerange": "00000000ffffffff",
"sigoplimit": 20000,
"sizelimit": 1000000,
"curtime": 1351659940,
"bits": "21008000",
"height": len(self.blocks),
}
def check(self, tracker):
from p2pool import p2p
if self.share_data['previous_share_hash'] is not None:
previous_share = tracker.items[self.share_data['previous_share_hash']]
if type(self) is type(previous_share):
pass
elif type(self) is type(previous_share).SUCCESSOR:
if tracker.get_height(previous_share.hash) < self.net.CHAIN_LENGTH:
from p2pool import p2p
raise p2p.PeerMisbehavingError('switch without enough history')
# switch only valid if 85% of hashes in [self.net.CHAIN_LENGTH*9//10, self.net.CHAIN_LENGTH] for new version
counts = get_desired_version_counts(tracker,
tracker.get_nth_parent_hash(previous_share.hash, self.net.CHAIN_LENGTH*9//10), self.net.CHAIN_LENGTH//10)
if counts.get(self.VERSION, 0) < sum(counts.itervalues())*85//100:
raise p2p.PeerMisbehavingError('switch without enough hash power upgraded')
else:
raise p2p.PeerMisbehavingError('''%s can't follow %s''' % (type(self).__name__, type(previous_share).__name__))
other_tx_hashes = [tracker.items[tracker.get_nth_parent_hash(self.hash, share_count)].share_info['new_transaction_hashes'][tx_count] for share_count, tx_count in self.iter_transaction_hash_refs()]
share_info, gentx, other_tx_hashes2, get_share = self.generate_transaction(tracker, self.share_info['share_data'], self.header['bits'].target, self.share_info['timestamp'], self.share_info['bits'].target, self.contents['ref_merkle_link'], [(h, None) for h in other_tx_hashes], self.net, last_txout_nonce=self.contents['last_txout_nonce'])
assert other_tx_hashes2 == other_tx_hashes
if share_info != self.share_info:
raise ValueError('share_info invalid')
if help_data.hash256(help_data.tx_type.pack(gentx)) != self.gentx_hash:
raise ValueError('''gentx doesn't match hash_link''')
if help_data.calculate_merkle_link([None] + other_tx_hashes, 0) != self.merkle_link:
raise ValueError('merkle_link and other_tx_hashes do not match')
return gentx # only used by as_block
def handle_shares(self, shares, peer):
if len(shares) > 5:
print 'Processing %i shares from %s...' % (
len(shares), '%s:%i' % peer.addr if peer is not None else None)
new_count = 0
all_new_txs = {}
for share, new_txs in shares:
if new_txs is not None:
all_new_txs.update(
(help_data.hash256(help_data.tx_type.pack(new_tx)), new_tx)
for new_tx in new_txs)
if share.hash in self.node.tracker.items:
#print 'Got duplicate share, ignoring. Hash: %s' % (p2pool_data.format_hash(share.hash),)
continue
new_count += 1
#print 'Received share %s from %r' % (p2pool_data.format_hash(share.hash), share.peer_addr)
self.node.tracker.add(share)
self.node.known_txs_var.add(all_new_txs)
if new_count:
self.node.set_best_share()
if len(shares) > 5:
print '... done processing %i shares. New: %i Have: %i/~%i' % (
len(shares), new_count, len(
self.node.tracker.items), 2 * self.node.net.CHAIN_LENGTH)
def test_tx_hash(self):
assert data.hash256(
data.tx_type.pack(
dict(
version=1,
type=0,
tx_ins=[
dict(
previous_output=None,
sequence=None,
script=
'70736a0468860e1a0452389500522cfabe6d6d2b2f33cf8f6291b184f1b291d24d82229463fcec239afea0ee34b4bfc622f62401000000000000004d696e656420627920425443204775696c6420ac1eeeed88'
.decode('hex'),
)
],
tx_outs=[
dict(
value=5003880250,
script=data.pubkey_hash_to_script2(
pack.IntType(160).unpack(
'ca975b00a8c203b8692f5a18d92dc5c2d2ebc57b'.
decode('hex'))),
)
],
lock_time=0,
extra_payload=None,
))
) == 0xb53802b2333e828d6532059f46ecf6b313a42d79f97925e457fbbfda45367e5c
def submit_block_p2p(block, factory, net):
if factory.conn.value is None:
print >> sys.stderr, 'No helpd connection when block submittal attempted! %s%064x' % (
net.PARENT.BLOCK_EXPLORER_URL_PREFIX,
help_data.hash256(help_data.block_header_type.pack(
block['header'])))
raise deferral.RetrySilentlyException()
factory.conn.value.send_block(block=block)
def _getwork(self, request, data, long_poll):
request.setHeader('X-Long-Polling', '/long-polling')
request.setHeader('X-Roll-NTime', 'expire=100')
request.setHeader('X-Is-P2Pool', 'true')
if request.getHeader('Host') is not None:
request.setHeader('X-Stratum', 'stratum+tcp://' + request.getHeader('Host'))
if data is not None:
header = getwork.decode_data(data)
if header['merkle_root'] not in self.merkle_root_to_handler:
print >>sys.stderr, '''Couldn't link returned work's merkle root with its handler. This should only happen if this process was recently restarted!'''
defer.returnValue(False)
defer.returnValue(self.merkle_root_to_handler[header['merkle_root']](header, request.getUser() if request.getUser() is not None else '', '\0'*self.worker_bridge.COINBASE_NONCE_LENGTH))
if p2pool.DEBUG:
id = random.randrange(1000, 10000)
print 'POLL %i START is_long_poll=%r user_agent=%r user=%r' % (id, long_poll, request.getHeader('User-Agent'), request.getUser())
if long_poll:
request_id = request.getClientIP(), request.getHeader('Authorization')
if self.worker_views.get(request_id, self.worker_bridge.new_work_event.times) != self.worker_bridge.new_work_event.times:
if p2pool.DEBUG:
print 'POLL %i PUSH' % (id,)
else:
if p2pool.DEBUG:
print 'POLL %i WAITING' % (id,)
yield self.worker_bridge.new_work_event.get_deferred()
self.worker_views[request_id] = self.worker_bridge.new_work_event.times
x, handler = self.worker_bridge.get_work(*self.worker_bridge.preprocess_request(request.getUser() if request.getUser() is not None else ''))
res = getwork.BlockAttempt(
version=x['version'],
previous_block=x['previous_block'],
merkle_root=help_data.check_merkle_link(help_data.hash256(x['coinb1'] + '\0'*self.worker_bridge.COINBASE_NONCE_LENGTH + x['coinb2']), x['merkle_link']),
timestamp=x['timestamp'],
bits=x['bits'],
share_target=x['share_target'],
)
assert res.merkle_root not in self.merkle_root_to_handler
self.merkle_root_to_handler[res.merkle_root] = handler
if p2pool.DEBUG:
print 'POLL %i END identifier=%i' % (id, self.worker_bridge.new_work_event.times)
extra_params = {}
if request.getHeader('User-Agent') == 'Jephis PIC Miner':
# ASICMINER BE Blades apparently have a buffer overflow bug and
# can't handle much extra in the getwork response
extra_params = {}
else:
extra_params = dict(identifier=str(self.worker_bridge.new_work_event.times), submitold=True)
defer.returnValue(res.getwork(**extra_params))
def test_header_hash(self):
assert data.hash256(
data.block_header_type.pack(
dict(
version=1,
previous_block=
0x000000000000038a2a86b72387f93c51298298a732079b3b686df3603d2f6282,
merkle_root=
0x37a43a3b812e4eb665975f46393b4360008824aab180f27d642de8c28073bc44,
timestamp=1323752685,
bits=data.FloatingInteger(437159528),
nonce=3658685446,
))
) == 0x000000000000003aaaf7638f9f9c0d0c60e8b0eb817dcdb55fd2b1964efc5175
def handle_remember_tx(self, tx_hashes, txs):
for tx_hash in tx_hashes:
if tx_hash in self.remembered_txs:
print >> sys.stderr, 'Peer referenced transaction twice, disconnecting'
self.disconnect()
return
if tx_hash in self.node.known_txs_var.value:
tx = self.node.known_txs_var.value[tx_hash]
else:
for cache in self.known_txs_cache.itervalues():
if tx_hash in cache:
tx = cache[tx_hash]
print 'Transaction %064x rescued from peer latency cache!' % (
tx_hash, )
break
else:
print >> sys.stderr, 'Peer referenced unknown transaction %064x, disconnecting' % (
tx_hash, )
self.disconnect()
return
self.remembered_txs[tx_hash] = tx
self.remembered_txs_size += 100 + help_data.tx_type.packed_size(tx)
added_known_txs = {}
warned = False
for tx in txs:
tx_hash = help_data.hash256(help_data.tx_type.pack(tx))
if tx_hash in self.remembered_txs:
print >> sys.stderr, 'Peer referenced transaction twice, disconnecting'
self.disconnect()
return
if tx_hash in self.node.known_txs_var.value and not warned:
print 'Peer sent entire transaction %064x that was already received' % (
tx_hash, )
warned = True
self.remembered_txs[tx_hash] = tx
self.remembered_txs_size += 100 + help_data.tx_type.packed_size(tx)
added_known_txs[tx_hash] = tx
self.node.known_txs_var.add(added_known_txs)
if self.remembered_txs_size >= self.max_remembered_txs_size:
raise PeerMisbehavingError('too much transaction data stored')
def rpc_submit(self, worker_name, job_id, extranonce2, ntime, nonce):
if job_id not in self.handler_map:
print >> sys.stderr, '''Couldn't link returned work's job id with its handler. This should only happen if this process was recently restarted!'''
return False
x, got_response = self.handler_map[job_id]
coinb_nonce = extranonce2.decode('hex')
assert len(coinb_nonce) == self.wb.COINBASE_NONCE_LENGTH
new_packed_gentx = x['coinb1'] + coinb_nonce + x['coinb2']
header = dict(
version=x['version'],
previous_block=x['previous_block'],
merkle_root=help_data.check_merkle_link(
help_data.hash256(new_packed_gentx), x['merkle_link']),
timestamp=pack.IntType(32).unpack(
getwork._swap4(ntime.decode('hex'))),
bits=x['bits'],
nonce=pack.IntType(32).unpack(getwork._swap4(nonce.decode('hex'))),
)
return got_response(header, worker_name, coinb_nonce)
def got_conn(self, conn):
p2p.Node.got_conn(self, conn)
yield deferral.sleep(.5)
new_mining_txs = dict(self.mining_txs_var.value)
for i in xrange(3):
huge_tx = dict(
version=0,
type=0,
tx_ins=[],
tx_outs=[dict(
value=0,
script='x' * 900000,
)],
lock_time=i,
extra_payload=None,
)
new_mining_txs[help_data.hash256(
help_data.tx_type.pack(huge_tx))] = huge_tx
self.mining_txs_var.set(new_mining_txs)
self.sent_time = reactor.seconds()
def get_ref_hash(cls, net, share_info, ref_merkle_link):
return pack.IntType(256).pack(help_data.check_merkle_link(help_data.hash256(cls.ref_type.pack(dict(
identifier=net.IDENTIFIER,
share_info=share_info,
))), ref_merkle_link))
def from_header(cls, header):
return cls(help_data.hash256(help_data.block_header_type.pack(header)),
header['previous_block'])
def _(tx):
self.known_txs_var.add({
help_data.hash256(help_data.tx_type.pack(tx)):
tx,
})