p2pool/main.py

   1 #!/usr/bin/python
   2
   3 from __future__ import division
   4
   5 import argparse
   6 import datetime
   7 import itertools
   8 import os
   9 import random
  10 import sqlite3
  11 import struct
  12 import sys
  13 import time
  14 import json
  15 import signal
  16 import traceback
  17
  18 from twisted.internet import defer, reactor, task
  19 from twisted.web import server, resource
  20 from twisted.python import log
  21 from nattraverso import portmapper, ipdiscover
  22
  23 import bitcoin.p2p, bitcoin.getwork, bitcoin.data
  24 from util import db, expiring_dict, jsonrpc, variable, deferral, math
  25 from . import p2p, worker_interface, skiplists
  26 import p2pool.data as p2pool
  27 import p2pool as p2pool_init
  28
  29 @deferral.retry('Error getting work from bitcoind:', 3)
  30 @defer.inlineCallbacks
  31 def getwork(bitcoind, ht, net):
  32     try:
  33         work = yield bitcoind.rpc_getmemorypool()
  34         defer.returnValue(dict(
  35             version=work['version'],
  36             previous_block_hash=int(work['previousblockhash'], 16),
  37             transactions=[bitcoin.data.tx_type.unpack(x.decode('hex')) for x in work['transactions']],
  38             subsidy=work['coinbasevalue'],
  39             time=work['time'],
  40             target=bitcoin.data.FloatingIntegerType().unpack(work['bits'].decode('hex')[::-1]) if isinstance(work['bits'], (str, unicode)) else bitcoin.data.FloatingInteger(work['bits']),
  41         ))
  42     except jsonrpc.Error, e:
  43         if e.code != -32601:
  44             raise
  45
  46         print "---> Update your bitcoind to support the 'getmemorypool' RPC call. Not including transactions in generated blocks! <---"
  47         work = bitcoin.getwork.BlockAttempt.from_getwork((yield bitcoind.rpc_getwork()))
  48         try:
  49             subsidy = net.BITCOIN_SUBSIDY_FUNC(ht.getHeight(work.previous_block))
  50         except ValueError:
  51             subsidy = net.BITCOIN_SUBSIDY_FUNC(1000)
  52
  53         defer.returnValue(dict(
  54             version=work.version,
  55             previous_block_hash=work.previous_block,
  56             transactions=[],
  57             subsidy=subsidy,
  58             time=work.timestamp,
  59             target=work.block_target,
  60         ))
  61
  62 @deferral.retry('Error getting payout script from bitcoind:', 1)
  63 @defer.inlineCallbacks
  64 def get_payout_script(factory):
  65     res = yield (yield factory.getProtocol()).check_order(order=bitcoin.p2p.Protocol.null_order)
  66     if res['reply'] == 'success':
  67         defer.returnValue(res['script'])
  68     elif res['reply'] == 'denied':
  69         defer.returnValue(None)
  70     else:
  71         raise ValueError('Unexpected reply: %r' % (res,))
  72
  73 @deferral.retry('Error creating payout script:', 10)
  74 @defer.inlineCallbacks
  75 def get_payout_script2(bitcoind, net):
  76     defer.returnValue(bitcoin.data.pubkey_hash_to_script2(bitcoin.data.address_to_pubkey_hash((yield bitcoind.rpc_getaccountaddress('p2pool')), net)))
  77
  78 @defer.inlineCallbacks
  79 def main(args):
  80     try:
  81         print 'p2pool (version %s)' % (p2pool_init.__version__,)
  82         print
  83         try:
  84             from . import draw
  85         except ImportError:
  86             draw = None
  87             print "Install Pygame and PIL to enable visualizations! Visualizations disabled."
  88             print
  89
  90         # connect to bitcoind over JSON-RPC and do initial getwork
  91         url = 'http://%s:%i/' % (args.bitcoind_address, args.bitcoind_rpc_port)
  92         print '''Testing bitcoind RPC connection to '%s' with username '%s'...''' % (url, args.bitcoind_rpc_username)
  93         bitcoind = jsonrpc.Proxy(url, (args.bitcoind_rpc_username, args.bitcoind_rpc_password))
  94         good = yield deferral.retry('Error while checking bitcoind identity:', 1)(args.net.BITCOIN_RPC_CHECK)(bitcoind)
  95         if not good:
  96             print "    Check failed! Make sure that you're connected to the right bitcoind with --bitcoind-rpc-port!"
  97             return
  98         temp_work = yield deferral.retry('Error while testing getwork:', 1)(defer.inlineCallbacks(lambda: defer.returnValue(bitcoin.getwork.BlockAttempt.from_getwork((yield bitcoind.rpc_getwork())))))()
  99         print '    ...success!'
 100         print '    Current block hash: %x' % (temp_work.previous_block,)
 101         print
 102
 103         # connect to bitcoind over bitcoin-p2p and do checkorder to get pubkey to send payouts to
 104         print '''Testing bitcoind P2P connection to '%s:%s'...''' % (args.bitcoind_address, args.bitcoind_p2p_port)
 105         factory = bitcoin.p2p.ClientFactory(args.net)
 106         reactor.connectTCP(args.bitcoind_address, args.bitcoind_p2p_port, factory)
 107         my_script = yield get_payout_script(factory)
 108         if args.pubkey_hash is None:
 109             if my_script is None:
 110                 print '    IP transaction denied ... falling back to sending to address.'
 111                 my_script = yield get_payout_script2(bitcoind, args.net)
 112         else:
 113             my_script = bitcoin.data.pubkey_hash_to_script2(args.pubkey_hash)
 114         print '    ...success!'
 115         print '    Payout script:', bitcoin.data.script2_to_human(my_script, args.net)
 116         print
 117
 118         print 'Loading cached block headers...'
 119         ht = bitcoin.p2p.HeightTracker(factory, args.net.NAME + '_headers.dat')
 120         print '   ...done loading %i cached block headers.' % (len(ht.tracker.shares),)
 121         print
 122
 123         tracker = p2pool.OkayTracker(args.net)
 124         ss = p2pool.ShareStore(os.path.join(os.path.dirname(sys.argv[0]), args.net.NAME + '_shares.'), args.net)
 125         known_verified = set()
 126         print "Loading shares..."
 127         for i, (mode, contents) in enumerate(ss.get_shares()):
 128             if mode == 'share':
 129                 if contents.hash in tracker.shares:
 130                     continue
 131                 contents.shared = True
 132                 contents.stored = True
 133                 contents.time_seen = 0
 134                 tracker.add(contents)
 135                 if len(tracker.shares) % 1000 == 0 and tracker.shares:
 136                     print "    %i" % (len(tracker.shares),)
 137             elif mode == 'verified_hash':
 138                 known_verified.add(contents)
 139             else:
 140                 raise AssertionError()
 141         print "    ...inserting %i verified shares..." % (len(known_verified),)
 142         for h in known_verified:
 143             if h not in tracker.shares:
 144                 ss.forget_verified_share(h)
 145                 continue
 146             tracker.verified.add(tracker.shares[h])
 147         print "    ...done loading %i shares!" % (len(tracker.shares),)
 148         print
 149         tracker.added.watch(lambda share: ss.add_share(share))
 150         tracker.verified.added.watch(lambda share: ss.add_verified_hash(share.hash))
 151         tracker.removed.watch(lambda share: ss.forget_share(share.hash))
 152         tracker.verified.removed.watch(lambda share: ss.forget_verified_share(share.hash))
 153
 154         peer_heads = expiring_dict.ExpiringDict(300) # hash -> peers that know of it
 155
 156         # information affecting work that should trigger a long-polling update
 157         current_work = variable.Variable(None)
 158         # information affecting work that should not trigger a long-polling update
 159         current_work2 = variable.Variable(None)
 160
 161         work_updated = variable.Event()
 162
 163         requested = expiring_dict.ExpiringDict(300)
 164
 165         @defer.inlineCallbacks
 166         def set_real_work1():
 167             work = yield getwork(bitcoind, ht, args.net)
 168             changed = work['previous_block_hash'] != current_work.value['previous_block'] if current_work.value is not None else True
 169             current_work.set(dict(
 170                 version=work['version'],
 171                 previous_block=work['previous_block_hash'],
 172                 target=work['target'],
 173                 best_share_hash=current_work.value['best_share_hash'] if current_work.value is not None else None,
 174                 aux_work=current_work.value['aux_work'] if current_work.value is not None else None,
 175             ))
 176             current_work2.set(dict(
 177                 transactions=work['transactions'],
 178                 subsidy=work['subsidy'],
 179                 clock_offset=time.time() - work['time'],
 180                 last_update=time.time(),
 181             ))
 182             if changed:
 183                 set_real_work2()
 184
 185         def set_real_work2():
 186             best, desired = tracker.think(ht, current_work.value['previous_block'], time.time() - current_work2.value['clock_offset'])
 187
 188             t = dict(current_work.value)
 189             t['best_share_hash'] = best
 190             current_work.set(t)
 191
 192             t = time.time()
 193             for peer2, share_hash in desired:
 194                 if share_hash not in tracker.tails: # was received in the time tracker.think was running
 195                     continue
 196                 last_request_time, count = requested.get(share_hash, (None, 0))
 197                 if last_request_time is not None and last_request_time - 5 < t < last_request_time + 10 * 1.5**count:
 198                     continue
 199                 potential_peers = set()
 200                 for head in tracker.tails[share_hash]:
 201                     potential_peers.update(peer_heads.get(head, set()))
 202                 potential_peers = [peer for peer in potential_peers if peer.connected2]
 203                 if count == 0 and peer2 is not None and peer2.connected2:
 204                     peer = peer2
 205                 else:
 206                     peer = random.choice(potential_peers) if potential_peers and random.random() > .2 else peer2
 207                     if peer is None:
 208                         continue
 209
 210                 print 'Requesting parent share %s from %s' % (p2pool.format_hash(share_hash), '%s:%i' % peer.addr)
 211                 peer.send_getshares(
 212                     hashes=[share_hash],
 213                     parents=2000,
 214                     stops=list(set(tracker.heads) | set(
 215                         tracker.get_nth_parent_hash(head, min(max(0, tracker.get_height_and_last(head)[0] - 1), 10)) for head in tracker.heads
 216                     ))[:100],
 217                 )
 218                 requested[share_hash] = t, count + 1
 219
 220         print 'Initializing work...'
 221         yield set_real_work1()
 222         set_real_work2()
 223         print '    ...success!'
 224         print
 225
 226         @defer.inlineCallbacks
 227         def set_merged_work():
 228             if not args.merged_url:
 229                 return
 230             while True:
 231                 merged = jsonrpc.Proxy(args.merged_url, (args.merged_userpass,))
 232                 auxblock = yield deferral.retry('Error while calling merged getauxblock:', 1)(merged.rpc_getauxblock)()
 233                 x = dict(current_work.value)
 234                 x['aux_work'] = dict(
 235                     hash=int(auxblock['hash'], 16),
 236                     target=bitcoin.data.HashType().unpack(auxblock['target'].decode('hex')),
 237                     chain_id=auxblock['chainid'],
 238                 )
 239                 #print x['aux_work']
 240                 current_work.set(x)
 241                 yield deferral.sleep(1)
 242         set_merged_work()
 243
 244         start_time = time.time() - current_work2.value['clock_offset']
 245
 246         # setup p2p logic and join p2pool network
 247
 248         def share_share(share, ignore_peer=None):
 249             for peer in p2p_node.peers.itervalues():
 250                 if peer is ignore_peer:
 251                     continue
 252                 #if p2pool_init.DEBUG:
 253                 #    print "Sending share %s to %r" % (p2pool.format_hash(share.hash), peer.addr)
 254                 peer.send_shares([share])
 255             share.flag_shared()
 256
 257         def p2p_shares(shares, peer=None):
 258             if len(shares) > 5:
 259                 print 'Processing %i shares...' % (len(shares),)
 260
 261             new_count = 0
 262             for share in shares:
 263                 if share.hash in tracker.shares:
 264                     #print 'Got duplicate share, ignoring. Hash: %s' % (p2pool.format_hash(share.hash),)
 265                     continue
 266
 267                 new_count += 1
 268
 269                 #print 'Received share %s from %r' % (p2pool.format_hash(share.hash), share.peer.addr if share.peer is not None else None)
 270
 271                 tracker.add(share)
 272
 273             if shares and peer is not None:
 274                 peer_heads.setdefault(shares[0].hash, set()).add(peer)
 275
 276             if new_count:
 277                 set_real_work2()
 278
 279             if len(shares) > 5:
 280                 print '... done processing %i shares. New: %i Have: %i/~%i' % (len(shares), new_count, len(tracker.shares), 2*args.net.CHAIN_LENGTH)
 281
 282         @tracker.verified.added.watch
 283         def _(share):
 284             if share.bitcoin_hash <= share.header['target']:
 285                 print
 286                 print 'GOT BLOCK! Passing to bitcoind! %s bitcoin: %x' % (p2pool.format_hash(share.hash), share.bitcoin_hash,)
 287                 print
 288                 if factory.conn.value is not None:
 289                     factory.conn.value.send_block(block=share.as_block(tracker, args.net))
 290                 else:
 291                     print 'No bitcoind connection! Erp!'
 292
 293         def p2p_share_hashes(share_hashes, peer):
 294             t = time.time()
 295             get_hashes = []
 296             for share_hash in share_hashes:
 297                 if share_hash in tracker.shares:
 298                     continue
 299                 last_request_time, count = requested.get(share_hash, (None, 0))
 300                 if last_request_time is not None and last_request_time - 5 < t < last_request_time + 10 * 1.5**count:
 301                     continue
 302                 print 'Got share hash, requesting! Hash: %s' % (p2pool.format_hash(share_hash),)
 303                 get_hashes.append(share_hash)
 304                 requested[share_hash] = t, count + 1
 305
 306             if share_hashes and peer is not None:
 307                 peer_heads.setdefault(share_hashes[0], set()).add(peer)
 308             if get_hashes:
 309                 peer.send_getshares(hashes=get_hashes, parents=0, stops=[])
 310
 311         def p2p_get_shares(share_hashes, parents, stops, peer):
 312             parents = min(parents, 1000//len(share_hashes))
 313             stops = set(stops)
 314             shares = []
 315             for share_hash in share_hashes:
 316                 for share in itertools.islice(tracker.get_chain_known(share_hash), parents + 1):
 317                     if share.hash in stops:
 318                         break
 319                     shares.append(share)
 320             print 'Sending %i shares to %s:%i' % (len(shares), peer.addr[0], peer.addr[1])
 321             peer.send_shares(shares, full=True)
 322
 323         print 'Joining p2pool network using TCP port %i...' % (args.p2pool_port,)
 324
 325         def parse(x):
 326             if ':' in x:
 327                 ip, port = x.split(':')
 328                 return ip, int(port)
 329             else:
 330                 return x, args.net.P2P_PORT
 331
 332         nodes = set([
 333             ('72.14.191.28', args.net.P2P_PORT),
 334             ('62.204.197.159', args.net.P2P_PORT),
 335             ('142.58.248.28', args.net.P2P_PORT),
 336             ('94.23.34.145', args.net.P2P_PORT),
 337         ])
 338         for host in [
 339             'p2pool.forre.st',
 340             'dabuttonfactory.com',
 341         ]:
 342             try:
 343                 nodes.add(((yield reactor.resolve(host)), args.net.P2P_PORT))
 344             except:
 345                 log.err(None, 'Error resolving bootstrap node IP:')
 346
 347         p2p_node = p2p.Node(
 348             current_work=current_work,
 349             port=args.p2pool_port,
 350             net=args.net,
 351             addr_store=db.SQLiteDict(sqlite3.connect(os.path.join(os.path.dirname(sys.argv[0]), 'addrs.dat'), isolation_level=None), args.net.NAME),
 352             mode=0 if args.low_bandwidth else 1,
 353             preferred_addrs=set(map(parse, args.p2pool_nodes)) | nodes,
 354         )
 355         p2p_node.handle_shares = p2p_shares
 356         p2p_node.handle_share_hashes = p2p_share_hashes
 357         p2p_node.handle_get_shares = p2p_get_shares
 358
 359         p2p_node.start()
 360
 361         # send share when the chain changes to their chain
 362         def work_changed(new_work):
 363             #print 'Work changed:', new_work
 364             for share in tracker.get_chain_known(new_work['best_share_hash']):
 365                 if share.shared:
 366                     break
 367                 share_share(share, share.peer)
 368         current_work.changed.watch(work_changed)
 369
 370         print '    ...success!'
 371         print
 372
 373         @defer.inlineCallbacks
 374         def upnp_thread():
 375             while True:
 376                 try:
 377                     is_lan, lan_ip = yield ipdiscover.get_local_ip()
 378                     if is_lan:
 379                         pm = yield portmapper.get_port_mapper()
 380                         yield pm._upnp.add_port_mapping(lan_ip, args.p2pool_port, args.p2pool_port, 'p2pool', 'TCP') # XXX try to forward external correct port?
 381                 except defer.TimeoutError:
 382                     pass
 383                 except:
 384                     if p2pool_init.DEBUG:
 385                         log.err(None, "UPnP error:")
 386                 yield deferral.sleep(random.expovariate(1/120))
 387
 388         if args.upnp:
 389             upnp_thread()
 390
 391         # start listening for workers with a JSON-RPC server
 392
 393         print 'Listening for workers on port %i...' % (args.worker_port,)
 394
 395         # setup worker logic
 396
 397         merkle_root_to_transactions = expiring_dict.ExpiringDict(300)
 398         run_identifier = struct.pack('<I', random.randrange(2**32))
 399
 400         share_counter = skiplists.CountsSkipList(tracker, run_identifier)
 401         removed_unstales = set()
 402         def get_share_counts(doa=False):
 403             height, last = tracker.get_height_and_last(current_work.value['best_share_hash'])
 404             matching_in_chain = share_counter(current_work.value['best_share_hash'], max(0, height - 1)) | removed_unstales
 405             shares_in_chain = my_shares & matching_in_chain
 406             stale_shares = my_shares - matching_in_chain
 407             if doa:
 408                 stale_doa_shares = stale_shares & doa_shares
 409                 stale_not_doa_shares = stale_shares - stale_doa_shares
 410                 return len(shares_in_chain) + len(stale_shares), len(stale_doa_shares), len(stale_not_doa_shares)
 411             return len(shares_in_chain) + len(stale_shares), len(stale_shares)
 412         @tracker.verified.removed.watch
 413         def _(share):
 414             if share.hash in my_shares and tracker.is_child_of(share.hash, current_work.value['best_share_hash']):
 415                 removed_unstales.add(share.hash)
 416
 417         def compute(state, payout_script):
 418             if payout_script is None or random.uniform(0, 100) < args.worker_fee:
 419                 payout_script = my_script
 420             if state['best_share_hash'] is None and args.net.PERSIST:
 421                 raise jsonrpc.Error(-12345, u'p2pool is downloading shares')
 422             if len(p2p_node.peers) == 0 and args.net.PERSIST:
 423                 raise jsonrpc.Error(-12345, u'p2pool is not connected to any peers')
 424             if time.time() > current_work2.value['last_update'] + 60:
 425                 raise jsonrpc.Error(-12345, u'lost contact with bitcoind')
 426
 427             if state['aux_work'] is not None:
 428                 aux_str = '\xfa\xbemm' + bitcoin.data.HashType().pack(state['aux_work']['hash'])[::-1] + struct.pack('<ii', 1, 0)
 429             else:
 430                 aux_str = ''
 431
 432             # XXX assuming generate_tx is smallish here..
 433             def get_stale_frac():
 434                 shares, stale_shares = get_share_counts()
 435                 if shares == 0:
 436                     return ""
 437                 frac = stale_shares/shares
 438                 return 2*struct.pack('<H', int(65535*frac + .5))
 439             subsidy = current_work2.value['subsidy']
 440             generate_tx = p2pool.generate_transaction(
 441                 tracker=tracker,
 442                 previous_share_hash=state['best_share_hash'],
 443                 new_script=payout_script,
 444                 subsidy=subsidy,
 445                 nonce=run_identifier + struct.pack('<H', random.randrange(2**16)) + get_stale_frac() + aux_str,
 446                 block_target=state['target'],
 447                 net=args.net,
 448             )
 449             print 'New work for worker! Difficulty: %.06f Payout if block: %.6f %s Total block value: %.6f %s including %i transactions' % (0xffff*2**208/p2pool.coinbase_type.unpack(generate_tx['tx_ins'][0]['script'])['share_data']['target'], (generate_tx['tx_outs'][-1]['value']-subsidy//200)*1e-8, args.net.BITCOIN_SYMBOL, subsidy*1e-8, args.net.BITCOIN_SYMBOL, len(current_work2.value['transactions']))
 450             #print 'Target: %x' % (p2pool.coinbase_type.unpack(generate_tx['tx_ins'][0]['script'])['share_data']['target'],)
 451             #, have', shares.count(my_script) - 2, 'share(s) in the current chain. Fee:', sum(tx.value_in - tx.value_out for tx in extra_txs)/100000000
 452             transactions = [generate_tx] + list(current_work2.value['transactions'])
 453             merkle_root = bitcoin.data.merkle_hash(transactions)
 454             merkle_root_to_transactions[merkle_root] = transactions # will stay for 1000 seconds
 455
 456             timestamp = int(time.time() - current_work2.value['clock_offset'])
 457             if state['best_share_hash'] is not None:
 458                 timestamp2 = math.median((s.timestamp for s in itertools.islice(tracker.get_chain_to_root(state['best_share_hash']), 11)), use_float=False) + 1
 459                 if timestamp2 > timestamp:
 460                     print 'Toff', timestamp2 - timestamp
 461                     timestamp = timestamp2
 462             target2 = p2pool.coinbase_type.unpack(generate_tx['tx_ins'][0]['script'])['share_data']['target']
 463             times[p2pool.coinbase_type.unpack(generate_tx['tx_ins'][0]['script'])['share_data']['nonce']] = time.time()
 464             #print 'SENT', 2**256//p2pool.coinbase_type.unpack(generate_tx['tx_ins'][0]['script'])['share_data']['target']
 465             return bitcoin.getwork.BlockAttempt(state['version'], state['previous_block'], merkle_root, timestamp, state['target'], target2)
 466
 467         my_shares = set()
 468         doa_shares = set()
 469         times = {}
 470
 471         def got_response(data, user):
 472             try:
 473                 # match up with transactions
 474                 header = bitcoin.getwork.decode_data(data)
 475                 transactions = merkle_root_to_transactions.get(header['merkle_root'], None)
 476                 if transactions is None:
 477                     print '''Couldn't link returned work's merkle root with its transactions - should only happen if you recently restarted p2pool'''
 478                     return False
 479                 block = dict(header=header, txs=transactions)
 480                 hash_ = bitcoin.data.block_header_type.hash256(block['header'])
 481                 if hash_ <= block['header']['target'] or p2pool_init.DEBUG:
 482                     if factory.conn.value is not None:
 483                         factory.conn.value.send_block(block=block)
 484                     else:
 485                         print 'No bitcoind connection! Erp!'
 486                     if hash_ <= block['header']['target']:
 487                         print
 488                         print 'GOT BLOCK! Passing to bitcoind! bitcoin: %x' % (hash_,)
 489                         print
 490                 try:
 491                     aux_pow = dict(
 492                         merkle_tx=dict(
 493                             tx=transactions[0],
 494                             block_hash=hash_,
 495                             merkle_branch=[x['hash'] for x in p2pool.calculate_merkle_branch(transactions, 0)],
 496                             index=0,
 497                         ),
 498                         merkle_branch=[],
 499                         index=0,
 500                         parent_block_header=header,
 501                     )
 502
 503                     a, b = transactions[0]['tx_ins'][0]['script'][-32-8:-8].encode('hex'), bitcoin.data.aux_pow_type.pack(aux_pow).encode('hex')
 504                     #print a, b
 505                     merged = jsonrpc.Proxy(args.merged_url, (args.merged_userpass,))
 506                     def _(res):
 507                         print "MERGED RESULT:", res
 508                     merged.rpc_getauxblock(a, b).addBoth(_)
 509                 except:
 510                     log.err(None, 'Error while processing merged mining POW:')
 511                 target = p2pool.coinbase_type.unpack(transactions[0]['tx_ins'][0]['script'])['share_data']['target']
 512                 if hash_ > target:
 513                     print 'Worker submitted share with hash > target:\nhash  : %x\ntarget: %x' % (hash_, target)
 514                     return False
 515                 share = p2pool.Share.from_block(block)
 516                 my_shares.add(share.hash)
 517                 if share.previous_hash != current_work.value['best_share_hash']:
 518                     doa_shares.add(share.hash)
 519                 print 'GOT SHARE! %s %s prev %s age %.2fs' % (user, p2pool.format_hash(share.hash), p2pool.format_hash(share.previous_hash), time.time() - times[share.nonce]) + (' DEAD ON ARRIVAL' if share.previous_hash != current_work.value['best_share_hash'] else '')
 520                 good = share.previous_hash == current_work.value['best_share_hash']
 521                 # maybe revert back to tracker being non-blocking so 'good' can be more accurate?
 522                 p2p_shares([share])
 523                 # eg. good = share.hash == current_work.value['best_share_hash'] here
 524                 return good
 525             except:
 526                 log.err(None, 'Error processing data received from worker:')
 527                 return False
 528
 529         web_root = worker_interface.WorkerInterface(current_work, compute, got_response, args.net)
 530
 531         def get_rate():
 532             if current_work.value['best_share_hash'] is not None:
 533                 height, last = tracker.get_height_and_last(current_work.value['best_share_hash'])
 534                 att_s = p2pool.get_pool_attempts_per_second(tracker, current_work.value['best_share_hash'], args.net, min(height - 1, 720))
 535                 fracs = [read_stale_frac(share) for share in itertools.islice(tracker.get_chain_known(current_work.value['best_share_hash']), 120) if read_stale_frac(share) is not None]
 536                 return json.dumps(int(att_s / (1. - (math.median(fracs) if fracs else 0))))
 537             return json.dumps(None)
 538
 539         def get_users():
 540             height, last = tracker.get_height_and_last(current_work.value['best_share_hash'])
 541             weights, total_weight = tracker.get_cumulative_weights(current_work.value['best_share_hash'], min(height, 720), 2**256)
 542             res = {}
 543             for script in sorted(weights, key=lambda s: weights[s]):
 544                 res[bitcoin.data.script2_to_human(script, args.net)] = weights[script]/total_weight
 545             return json.dumps(res)
 546
 547         class WebInterface(resource.Resource):
 548             def __init__(self, func, mime_type):
 549                 self.func, self.mime_type = func, mime_type
 550
 551             def render_GET(self, request):
 552                 request.setHeader('Content-Type', self.mime_type)
 553                 return self.func()
 554
 555         web_root.putChild('rate', WebInterface(get_rate, 'application/json'))
 556         web_root.putChild('users', WebInterface(get_users, 'application/json'))
 557         web_root.putChild('fee', WebInterface(lambda: json.dumps(args.worker_fee), 'application/json'))
 558         if draw is not None:
 559             web_root.putChild('chain_img', WebInterface(lambda: draw.get(tracker, current_work.value['best_share_hash']), 'image/png'))
 560
 561         reactor.listenTCP(args.worker_port, server.Site(web_root))
 562
 563         print '    ...success!'
 564         print
 565
 566         # done!
 567
 568         # do new getwork when a block is heard on the p2p interface
 569
 570         def new_block(block_hash):
 571             work_updated.happened()
 572         factory.new_block.watch(new_block)
 573
 574         print 'Started successfully!'
 575         print
 576
 577         ht.updated.watch(set_real_work2)
 578
 579         @defer.inlineCallbacks
 580         def work1_thread():
 581             while True:
 582                 flag = work_updated.get_deferred()
 583                 try:
 584                     yield set_real_work1()
 585                 except:
 586                     log.err()
 587                 yield defer.DeferredList([flag, deferral.sleep(random.uniform(1, 10))], fireOnOneCallback=True)
 588
 589         @defer.inlineCallbacks
 590         def work2_thread():
 591             while True:
 592                 try:
 593                     set_real_work2()
 594                 except:
 595                     log.err()
 596                 yield deferral.sleep(random.expovariate(1/20))
 597
 598         work1_thread()
 599         work2_thread()
 600
 601
 602         if hasattr(signal, 'SIGALRM'):
 603             def watchdog_handler(signum, frame):
 604                 print 'Watchdog timer went off at:'
 605                 traceback.print_stack()
 606
 607             signal.signal(signal.SIGALRM, watchdog_handler)
 608             task.LoopingCall(signal.alarm, 30).start(1)
 609
 610
 611         def read_stale_frac(share):
 612             if len(share.nonce) != 20:
 613                 return None
 614             a, b = struct.unpack("<HH", share.nonce[-4:])
 615             if a != b:
 616                 return None
 617             return a/65535
 618
 619         while True:
 620             yield deferral.sleep(3)
 621             try:
 622                 if time.time() > current_work2.value['last_update'] + 60:
 623                     print '''---> LOST CONTACT WITH BITCOIND for 60 seconds, check that it isn't frozen or dead <---'''
 624                 if current_work.value['best_share_hash'] is not None:
 625                     height, last = tracker.get_height_and_last(current_work.value['best_share_hash'])
 626                     if height > 2:
 627                         att_s = p2pool.get_pool_attempts_per_second(tracker, current_work.value['best_share_hash'], args.net, min(height - 1, 720))
 628                         weights, total_weight = tracker.get_cumulative_weights(current_work.value['best_share_hash'], min(height, 720), 2**100)
 629                         shares, stale_doa_shares, stale_not_doa_shares = get_share_counts(True)
 630                         stale_shares = stale_doa_shares + stale_not_doa_shares
 631                         fracs = [read_stale_frac(share) for share in itertools.islice(tracker.get_chain_known(current_work.value['best_share_hash']), 120) if read_stale_frac(share) is not None]
 632                         print 'Pool: %sH/s in %i shares (%i/%i verified) Recent: %.02f%% >%sH/s Shares: %i (%i orphan, %i dead) Peers: %i' % (
 633                             math.format(int(att_s / (1. - (math.median(fracs) if fracs else 0)))),
 634                             height,
 635                             len(tracker.verified.shares),
 636                             len(tracker.shares),
 637                             weights.get(my_script, 0)/total_weight*100,
 638                             math.format(int(weights.get(my_script, 0)*att_s//total_weight / (1. - (math.median(fracs) if fracs else 0)))),
 639                             shares,
 640                             stale_not_doa_shares,
 641                             stale_doa_shares,
 642                             len(p2p_node.peers),
 643                         ) + (' FDs: %i R/%i W' % (len(reactor.getReaders()), len(reactor.getWriters())) if p2pool_init.DEBUG else '')
 644                         if fracs:
 645                             med = math.median(fracs)
 646                             print 'Median stale proportion:', med
 647                             if shares:
 648                                 print '    Own:', stale_shares/shares
 649                                 if med < .99:
 650                                     print '    Own efficiency: %.02f%%' % (100*(1 - stale_shares/shares)/(1 - med),)
 651
 652
 653             except:
 654                 log.err()
 655     except:
 656         log.err(None, 'Fatal error:')
 657     finally:
 658         reactor.stop()
 659
 660 def run():
 661     class FixedArgumentParser(argparse.ArgumentParser):
 662         def _read_args_from_files(self, arg_strings):
 663             # expand arguments referencing files
 664             new_arg_strings = []
 665             for arg_string in arg_strings:
 666
 667                 # for regular arguments, just add them back into the list
 668                 if not arg_string or arg_string[0] not in self.fromfile_prefix_chars:
 669                     new_arg_strings.append(arg_string)
 670
 671                 # replace arguments referencing files with the file content
 672                 else:
 673                     try:
 674                         args_file = open(arg_string[1:])
 675                         try:
 676                             arg_strings = []
 677                             for arg_line in args_file.read().splitlines():
 678                                 for arg in self.convert_arg_line_to_args(arg_line):
 679                                     arg_strings.append(arg)
 680                             arg_strings = self._read_args_from_files(arg_strings)
 681                             new_arg_strings.extend(arg_strings)
 682                         finally:
 683                             args_file.close()
 684                     except IOError:
 685                         err = sys.exc_info()[1]
 686                         self.error(str(err))
 687
 688             # return the modified argument list
 689             return new_arg_strings
 690
 691         def convert_arg_line_to_args(self, arg_line):
 692             return [arg for arg in arg_line.split() if arg.strip()]
 693
 694     parser = FixedArgumentParser(description='p2pool (version %s)' % (p2pool_init.__version__,), fromfile_prefix_chars='@')
 695     parser.add_argument('--version', action='version', version=p2pool_init.__version__)
 696     parser.add_argument('--net',
 697         help='use specified network (default: bitcoin)',
 698         action='store', choices=sorted(x for x in p2pool.nets if 'testnet' not in x), default='bitcoin', dest='net_name')
 699     parser.add_argument('--testnet',
 700         help='''use the network's testnet''',
 701         action='store_const', const=True, default=False, dest='testnet')
 702     parser.add_argument('--debug',
 703         help='debugging mode',
 704         action='store_const', const=True, default=False, dest='debug')
 705     parser.add_argument('-a', '--address',
 706         help='generate to this address (defaults to requesting one from bitcoind)',
 707         type=str, action='store', default=None, dest='address')
 708     parser.add_argument('--logfile',
 709         help='''log to specific file (defaults to <network_name>.log in run_p2pool.py's directory)''',
 710         type=str, action='store', default=None, dest='logfile')
 711     parser.add_argument('--merged-url',
 712         help='call getauxblock on this url to get work for merged mining',
 713         type=str, action='store', default=None, dest='merged_url')
 714     parser.add_argument('--merged-userpass',
 715         help='merge daemon user and password, separated by a colon. Example: ncuser:ncpass',
 716         type=str, action='store', default=None, dest='merged_userpass')
 717
 718     p2pool_group = parser.add_argument_group('p2pool interface')
 719     p2pool_group.add_argument('--p2pool-port', metavar='PORT',
 720         help='use TCP port PORT to listen for connections (default: 9333 normally, 19333 for testnet) (forward this port from your router!)',
 721         type=int, action='store', default=None, dest='p2pool_port')
 722     p2pool_group.add_argument('-n', '--p2pool-node', metavar='ADDR[:PORT]',
 723         help='connect to existing p2pool node at ADDR listening on TCP port PORT (defaults to 9333 normally, 19333 for testnet), in addition to builtin addresses',
 724         type=str, action='append', default=[], dest='p2pool_nodes')
 725     parser.add_argument('-l', '--low-bandwidth',
 726         help='trade lower bandwidth usage for higher latency (reduced efficiency)',
 727         action='store_true', default=False, dest='low_bandwidth')
 728     parser.add_argument('--disable-upnp',
 729         help='''don't attempt to forward port 9333 (19333 for testnet) from the WAN to this computer using UPnP''',
 730         action='store_false', default=True, dest='upnp')
 731
 732     worker_group = parser.add_argument_group('worker interface')
 733     worker_group.add_argument('-w', '--worker-port', metavar='PORT',
 734         help='listen on PORT for RPC connections from miners asking for work and providing responses (default: bitcoin: 9332 namecoin: 9331 ixcoin: 9330 i0coin: 9329, +10000 for testnets)',
 735         type=int, action='store', default=None, dest='worker_port')
 736     worker_group.add_argument('-f', '--fee', metavar='FEE_PERCENTAGE',
 737         help='''charge workers mining to their own bitcoin address (by setting their miner's username to a bitcoin address) this percentage fee to mine on your p2pool instance. Amount displayed at http://127.0.0.1:9332/fee . default: 0''',
 738         type=float, action='store', default=0, dest='worker_fee')
 739
 740     bitcoind_group = parser.add_argument_group('bitcoind interface')
 741     bitcoind_group.add_argument('--bitcoind-address', metavar='BITCOIND_ADDRESS',
 742         help='connect to a bitcoind at this address (default: 127.0.0.1)',
 743         type=str, action='store', default='127.0.0.1', dest='bitcoind_address')
 744     bitcoind_group.add_argument('--bitcoind-rpc-port', metavar='BITCOIND_RPC_PORT',
 745         help='connect to a bitcoind at this port over the RPC interface - used to get the current highest block via getwork (default: 8332, 8338 for ixcoin)',
 746         type=int, action='store', default=None, dest='bitcoind_rpc_port')
 747     bitcoind_group.add_argument('--bitcoind-p2p-port', metavar='BITCOIND_P2P_PORT',
 748         help='connect to a bitcoind at this port over the p2p interface - used to submit blocks and get the pubkey to generate to via an IP transaction (default: 8333 normally. 18333 for testnet)',
 749         type=int, action='store', default=None, dest='bitcoind_p2p_port')
 750
 751     bitcoind_group.add_argument(metavar='BITCOIND_RPCUSER',
 752         help='bitcoind RPC interface username (default: empty)',
 753         type=str, action='store', default='', nargs='?', dest='bitcoind_rpc_username')
 754     bitcoind_group.add_argument(metavar='BITCOIND_RPCPASSWORD',
 755         help='bitcoind RPC interface password',
 756         type=str, action='store', dest='bitcoind_rpc_password')
 757
 758     args = parser.parse_args()
 759
 760     if args.debug:
 761         p2pool_init.DEBUG = True
 762
 763     if args.logfile is None:
 764         args.logfile = os.path.join(os.path.dirname(sys.argv[0]), args.net_name + ('_testnet' if args.testnet else '') + '.log')
 765
 766     class LogFile(object):
 767         def __init__(self, filename):
 768             self.filename = filename
 769             self.inner_file = None
 770             self.reopen()
 771         def reopen(self):
 772             if self.inner_file is not None:
 773                 self.inner_file.close()
 774             open(self.filename, 'a').close()
 775             f = open(self.filename, 'rb')
 776             f.seek(0, os.SEEK_END)
 777             length = f.tell()
 778             if length > 100*1000*1000:
 779                 f.seek(-1000*1000, os.SEEK_END)
 780                 while True:
 781                     if f.read(1) in ('', '\n'):
 782                         break
 783                 data = f.read()
 784                 f.close()
 785                 f = open(self.filename, 'wb')
 786                 f.write(data)
 787             f.close()
 788             self.inner_file = open(self.filename, 'a')
 789         def write(self, data):
 790             self.inner_file.write(data)
 791         def flush(self):
 792             self.inner_file.flush()
 793     class TeePipe(object):
 794         def __init__(self, outputs):
 795             self.outputs = outputs
 796         def write(self, data):
 797             for output in self.outputs:
 798                 output.write(data)
 799         def flush(self):
 800             for output in self.outputs:
 801                 output.flush()
 802     class TimestampingPipe(object):
 803         def __init__(self, inner_file):
 804             self.inner_file = inner_file
 805             self.buf = ''
 806             self.softspace = 0
 807         def write(self, data):
 808             buf = self.buf + data
 809             lines = buf.split('\n')
 810             for line in lines[:-1]:
 811                 self.inner_file.write('%s %s\n' % (datetime.datetime.now().strftime("%H:%M:%S.%f"), line))
 812                 self.inner_file.flush()
 813             self.buf = lines[-1]
 814         def flush(self):
 815             pass
 816     logfile = LogFile(args.logfile)
 817     sys.stdout = sys.stderr = log.DefaultObserver.stderr = TimestampingPipe(TeePipe([sys.stderr, logfile]))
 818     if hasattr(signal, "SIGUSR1"):
 819         def sigusr1(signum, frame):
 820             print 'Caught SIGUSR1, closing %r...' % (args.logfile,)
 821             logfile.reopen()
 822             print '...and reopened %r after catching SIGUSR1.' % (args.logfile,)
 823         signal.signal(signal.SIGUSR1, sigusr1)
 824     task.LoopingCall(logfile.reopen).start(5)
 825
 826     args.net = p2pool.nets[args.net_name + ('_testnet' if args.testnet else '')]
 827
 828     if args.bitcoind_rpc_port is None:
 829         args.bitcoind_rpc_port = args.net.BITCOIN_RPC_PORT
 830
 831     if args.bitcoind_p2p_port is None:
 832         args.bitcoind_p2p_port = args.net.BITCOIN_P2P_PORT
 833
 834     if args.p2pool_port is None:
 835         args.p2pool_port = args.net.P2P_PORT
 836
 837     if args.worker_port is None:
 838         args.worker_port = args.net.WORKER_PORT
 839
 840     if args.address is not None:
 841         try:
 842             args.pubkey_hash = bitcoin.data.address_to_pubkey_hash(args.address, args.net)
 843         except Exception, e:
 844             parser.error('error parsing address: ' + repr(e))
 845     else:
 846         args.pubkey_hash = None
 847
 848     if (args.merged_url is None) ^ (args.merged_userpass is None):
 849         parser.error('must specify --merged-url and --merged-userpass')
 850
 851     reactor.callWhenRunning(main, args)
 852     reactor.run()