4 from twisted.internet import protocol, reactor
5 from twisted.python import log
7 from p2pool.bitcoin import data as bitcoin_data, getwork
8 from p2pool.util import expiring_dict, jsonrpc, pack
11 class StratumRPCMiningProvider(object):
12 def __init__(self, wb, other, transport):
15 self.transport = transport
18 self.handler_map = expiring_dict.ExpiringDict(300)
20 self.watch_id = self.wb.new_work_event.watch(self._send_work)
22 def rpc_subscribe(self, miner_version=None, session_id=None):
23 reactor.callLater(0, self._send_work)
26 ["mining.notify", "ae6812eb4cd7735a302a8a9dd95cf71f"], # subscription details
28 self.wb.COINBASE_NONCE_LENGTH, # extranonce2_size
31 def rpc_authorize(self, username, password):
32 self.username = username
34 reactor.callLater(0, self._send_work)
38 x, got_response = self.wb.get_work(*self.wb.preprocess_request('' if self.username is None else self.username))
41 self.transport.loseConnection()
43 jobid = str(random.randrange(2**128))
44 self.other.svc_mining.rpc_set_difficulty(bitcoin_data.target_to_difficulty(x['share_target'])*self.wb.net.DUMB_SCRYPT_DIFF).addErrback(lambda err: None)
45 self.other.svc_mining.rpc_notify(
47 getwork._swap4(pack.IntType(256).pack(x['previous_block'])).encode('hex'), # prevhash
48 x['coinb1'].encode('hex'), # coinb1
49 x['coinb2'].encode('hex'), # coinb2
50 [pack.IntType(256).pack(s).encode('hex') for s in x['merkle_link']['branch']], # merkle_branch
51 getwork._swap4(pack.IntType(32).pack(x['version'])).encode('hex'), # version
52 getwork._swap4(pack.IntType(32).pack(x['bits'].bits)).encode('hex'), # nbits
53 getwork._swap4(pack.IntType(32).pack(x['timestamp'])).encode('hex'), # ntime
55 ).addErrback(lambda err: None)
56 self.handler_map[jobid] = x, got_response
58 def rpc_submit(self, worker_name, job_id, extranonce2, ntime, nonce):
59 if job_id not in self.handler_map:
60 print >>sys.stderr, '''Couldn't link returned work's job id with its handler. This should only happen if this process was recently restarted!'''
62 x, got_response = self.handler_map[job_id]
63 coinb_nonce = extranonce2.decode('hex')
64 assert len(coinb_nonce) == self.wb.COINBASE_NONCE_LENGTH
65 new_packed_gentx = x['coinb1'] + coinb_nonce + x['coinb2']
68 previous_block=x['previous_block'],
69 merkle_root=bitcoin_data.check_merkle_link(bitcoin_data.hash256(new_packed_gentx), x['merkle_link']),
70 timestamp=pack.IntType(32).unpack(getwork._swap4(ntime.decode('hex'))),
72 nonce=pack.IntType(32).unpack(getwork._swap4(nonce.decode('hex'))),
74 return got_response(header, worker_name, coinb_nonce)
77 self.wb.new_work_event.unwatch(self.watch_id)
79 class StratumProtocol(jsonrpc.LineBasedPeer):
80 def connectionMade(self):
81 self.svc_mining = StratumRPCMiningProvider(self.factory.wb, self.other, self.transport)
83 def connectionLost(self, reason):
84 self.svc_mining.close()
86 class StratumServerFactory(protocol.ServerFactory):
87 protocol = StratumProtocol
89 def __init__(self, wb):