p2pool/main.py

   1 from __future__ import division
   2
   3 import ConfigParser
   4 import StringIO
   5 import argparse
   6 import os
   7 import random
   8 import struct
   9 import sys
  10 import time
  11 import signal
  12 import traceback
  13 import urlparse
  14
  15 from twisted.internet import defer, reactor, protocol, task
  16 from twisted.web import server
  17 from twisted.python import log
  18 from nattraverso import portmapper, ipdiscover
  19
  20 import bitcoin.p2p as bitcoin_p2p, bitcoin.getwork as bitcoin_getwork, bitcoin.data as bitcoin_data
  21 from bitcoin import worker_interface
  22 from util import expiring_dict, jsonrpc, variable, deferral, math, logging, pack
  23 from . import p2p, networks, web
  24 import p2pool, p2pool.data as p2pool_data
  25
  26 @deferral.retry('Error getting work from bitcoind:', 3)
  27 @defer.inlineCallbacks
  28 def getwork(bitcoind):
  29     try:
  30         work = yield bitcoind.rpc_getmemorypool()
  31     except jsonrpc.Error, e:
  32         if e.code == -32601: # Method not found
  33             print >>sys.stderr, 'Error: Bitcoin version too old! Upgrade to v0.5 or newer!'
  34             raise deferral.RetrySilentlyException()
  35         raise
  36     packed_transactions = [x.decode('hex') for x in work['transactions']]
  37     defer.returnValue(dict(
  38         version=work['version'],
  39         previous_block_hash=int(work['previousblockhash'], 16),
  40         transactions=map(bitcoin_data.tx_type.unpack, packed_transactions),
  41         merkle_branch=bitcoin_data.calculate_merkle_branch([0] + map(bitcoin_data.hash256, packed_transactions), 0),
  42         subsidy=work['coinbasevalue'],
  43         time=work['time'],
  44         bits=bitcoin_data.FloatingIntegerType().unpack(work['bits'].decode('hex')[::-1]) if isinstance(work['bits'], (str, unicode)) else bitcoin_data.FloatingInteger(work['bits']),
  45         coinbaseflags=work['coinbaseflags'].decode('hex') if 'coinbaseflags' in work else ''.join(x.decode('hex') for x in work['coinbaseaux'].itervalues()) if 'coinbaseaux' in work else '',
  46     ))
  47
  48 @defer.inlineCallbacks
  49 def main(args, net, datadir_path, merged_urls, worker_endpoint):
  50     try:
  51         print 'p2pool (version %s)' % (p2pool.__version__,)
  52         print
  53
  54         # connect to bitcoind over JSON-RPC and do initial getmemorypool
  55         url = 'http://%s:%i/' % (args.bitcoind_address, args.bitcoind_rpc_port)
  56         print '''Testing bitcoind RPC connection to '%s' with username '%s'...''' % (url, args.bitcoind_rpc_username)
  57         bitcoind = jsonrpc.Proxy(url, (args.bitcoind_rpc_username, args.bitcoind_rpc_password))
  58         good = yield deferral.retry('Error while checking bitcoind identity:', 1)(net.PARENT.RPC_CHECK)(bitcoind)
  59         if not good:
  60             print >>sys.stderr, "    Check failed! Make sure that you're connected to the right bitcoind with --bitcoind-rpc-port!"
  61             return
  62         temp_work = yield getwork(bitcoind)
  63         print '    ...success!'
  64         print '    Current block hash: %x' % (temp_work['previous_block_hash'],)
  65         print
  66
  67         # connect to bitcoind over bitcoin-p2p
  68         print '''Testing bitcoind P2P connection to '%s:%s'...''' % (args.bitcoind_address, args.bitcoind_p2p_port)
  69         factory = bitcoin_p2p.ClientFactory(net.PARENT)
  70         reactor.connectTCP(args.bitcoind_address, args.bitcoind_p2p_port, factory)
  71         yield factory.getProtocol() # waits until handshake is successful
  72         print '    ...success!'
  73         print
  74
  75         print 'Determining payout address...'
  76         if args.pubkey_hash is None:
  77             address_path = os.path.join(datadir_path, 'cached_payout_address')
  78
  79             if os.path.exists(address_path):
  80                 with open(address_path, 'rb') as f:
  81                     address = f.read().strip('\r\n')
  82                 print '    Loaded cached address: %s...' % (address,)
  83             else:
  84                 address = None
  85
  86             if address is not None:
  87                 res = yield deferral.retry('Error validating cached address:', 5)(lambda: bitcoind.rpc_validateaddress(address))()
  88                 if not res['isvalid'] or not res['ismine']:
  89                     print '    Cached address is either invalid or not controlled by local bitcoind!'
  90                     address = None
  91
  92             if address is None:
  93                 print '    Getting payout address from bitcoind...'
  94                 address = yield deferral.retry('Error getting payout address from bitcoind:', 5)(lambda: bitcoind.rpc_getaccountaddress('p2pool'))()
  95
  96             with open(address_path, 'wb') as f:
  97                 f.write(address)
  98
  99             my_pubkey_hash = bitcoin_data.address_to_pubkey_hash(address, net.PARENT)
 100         else:
 101             my_pubkey_hash = args.pubkey_hash
 102         print '    ...success! Payout address:', bitcoin_data.pubkey_hash_to_address(my_pubkey_hash, net.PARENT)
 103         print
 104
 105         my_share_hashes = set()
 106         my_doa_share_hashes = set()
 107
 108         tracker = p2pool_data.OkayTracker(net, my_share_hashes, my_doa_share_hashes)
 109         shared_share_hashes = set()
 110         ss = p2pool_data.ShareStore(os.path.join(datadir_path, 'shares.'), net)
 111         known_verified = set()
 112         recent_blocks = []
 113         print "Loading shares..."
 114         for i, (mode, contents) in enumerate(ss.get_shares()):
 115             if mode == 'share':
 116                 if contents.hash in tracker.shares:
 117                     continue
 118                 shared_share_hashes.add(contents.hash)
 119                 contents.time_seen = 0
 120                 tracker.add(contents)
 121                 if len(tracker.shares) % 1000 == 0 and tracker.shares:
 122                     print "    %i" % (len(tracker.shares),)
 123             elif mode == 'verified_hash':
 124                 known_verified.add(contents)
 125             else:
 126                 raise AssertionError()
 127         print "    ...inserting %i verified shares..." % (len(known_verified),)
 128         for h in known_verified:
 129             if h not in tracker.shares:
 130                 ss.forget_verified_share(h)
 131                 continue
 132             tracker.verified.add(tracker.shares[h])
 133         print "    ...done loading %i shares!" % (len(tracker.shares),)
 134         print
 135         tracker.removed.watch(lambda share: ss.forget_share(share.hash))
 136         tracker.verified.removed.watch(lambda share: ss.forget_verified_share(share.hash))
 137         tracker.removed.watch(lambda share: shared_share_hashes.discard(share.hash))
 138
 139         peer_heads = expiring_dict.ExpiringDict(300) # hash -> peers that know of it
 140
 141         pre_current_work = variable.Variable(None)
 142         pre_merged_work = variable.Variable({})
 143         # information affecting work that should trigger a long-polling update
 144         current_work = variable.Variable(None)
 145         # information affecting work that should not trigger a long-polling update
 146         current_work2 = variable.Variable(None)
 147
 148         requested = expiring_dict.ExpiringDict(300)
 149
 150         print 'Initializing work...'
 151         @defer.inlineCallbacks
 152         def set_real_work1():
 153             work = yield getwork(bitcoind)
 154             current_work2.set(dict(
 155                 time=work['time'],
 156                 transactions=work['transactions'],
 157                 merkle_branch=work['merkle_branch'],
 158                 subsidy=work['subsidy'],
 159                 clock_offset=time.time() - work['time'],
 160                 last_update=time.time(),
 161             )) # second set first because everything hooks on the first
 162             pre_current_work.set(dict(
 163                 version=work['version'],
 164                 previous_block=work['previous_block_hash'],
 165                 bits=work['bits'],
 166                 coinbaseflags=work['coinbaseflags'],
 167             ))
 168         yield set_real_work1()
 169
 170         if '\ngetblock ' in (yield deferral.retry()(bitcoind.rpc_help)()):
 171             height_cacher = deferral.DeferredCacher(defer.inlineCallbacks(lambda block_hash: defer.returnValue((lambda x: x['blockcount'] if 'blockcount' in x else x['height'])((yield bitcoind.rpc_getblock('%x' % (block_hash,)))))))
 172             best_height_cached = variable.Variable((yield deferral.retry()(height_cacher)(pre_current_work.value['previous_block'])))
 173             def get_height_rel_highest(block_hash):
 174                 this_height = height_cacher.call_now(block_hash, 0)
 175                 best_height = height_cacher.call_now(pre_current_work.value['previous_block'], 0)
 176                 best_height_cached.set(max(best_height_cached.value, this_height, best_height))
 177                 return this_height - best_height_cached.value
 178         else:
 179             get_height_rel_highest = bitcoin_p2p.HeightTracker(bitcoind, factory, 5*net.SHARE_PERIOD*net.CHAIN_LENGTH/net.PARENT.BLOCK_PERIOD).get_height_rel_highest
 180
 181         def set_real_work2():
 182             best, desired = tracker.think(get_height_rel_highest, pre_current_work.value['previous_block'], pre_current_work.value['bits'])
 183
 184             t = dict(pre_current_work.value)
 185             t['best_share_hash'] = best
 186             t['mm_chains'] = pre_merged_work.value
 187             current_work.set(t)
 188
 189             t = time.time()
 190             for peer2, share_hash in desired:
 191                 if share_hash not in tracker.tails: # was received in the time tracker.think was running
 192                     continue
 193                 last_request_time, count = requested.get(share_hash, (None, 0))
 194                 if last_request_time is not None and last_request_time - 5 < t < last_request_time + 10 * 1.5**count:
 195                     continue
 196                 potential_peers = set()
 197                 for head in tracker.tails[share_hash]:
 198                     potential_peers.update(peer_heads.get(head, set()))
 199                 potential_peers = [peer for peer in potential_peers if peer.connected2]
 200                 if count == 0 and peer2 is not None and peer2.connected2:
 201                     peer = peer2
 202                 else:
 203                     peer = random.choice(potential_peers) if potential_peers and random.random() > .2 else peer2
 204                     if peer is None:
 205                         continue
 206
 207                 print 'Requesting parent share %s from %s' % (p2pool_data.format_hash(share_hash), '%s:%i' % peer.addr)
 208                 peer.send_getshares(
 209                     hashes=[share_hash],
 210                     parents=2000,
 211                     stops=list(set(tracker.heads) | set(
 212                         tracker.get_nth_parent_hash(head, min(max(0, tracker.get_height_and_last(head)[0] - 1), 10)) for head in tracker.heads
 213                     ))[:100],
 214                 )
 215                 requested[share_hash] = t, count + 1
 216         pre_current_work.changed.watch(lambda _: set_real_work2())
 217         pre_merged_work.changed.watch(lambda _: set_real_work2())
 218         set_real_work2()
 219         print '    ...success!'
 220         print
 221
 222
 223         @defer.inlineCallbacks
 224         def set_merged_work(merged_url, merged_userpass):
 225             merged_proxy = jsonrpc.Proxy(merged_url, (merged_userpass,))
 226             while True:
 227                 auxblock = yield deferral.retry('Error while calling merged getauxblock:', 1)(merged_proxy.rpc_getauxblock)()
 228                 pre_merged_work.set(dict(pre_merged_work.value, **{auxblock['chainid']: dict(
 229                     hash=int(auxblock['hash'], 16),
 230                     target=pack.IntType(256).unpack(auxblock['target'].decode('hex')),
 231                     merged_proxy=merged_proxy,
 232                 )}))
 233                 yield deferral.sleep(1)
 234         for merged_url, merged_userpass in merged_urls:
 235             set_merged_work(merged_url, merged_userpass)
 236
 237         @pre_merged_work.changed.watch
 238         def _(new_merged_work):
 239             print 'Got new merged mining work!'
 240
 241         # setup p2p logic and join p2pool network
 242
 243         class Node(p2p.Node):
 244             def handle_shares(self, shares, peer):
 245                 if len(shares) > 5:
 246                     print 'Processing %i shares from %s...' % (len(shares), '%s:%i' % peer.addr if peer is not None else None)
 247
 248                 new_count = 0
 249                 for share in shares:
 250                     if share.hash in tracker.shares:
 251                         #print 'Got duplicate share, ignoring. Hash: %s' % (p2pool_data.format_hash(share.hash),)
 252                         continue
 253
 254                     new_count += 1
 255
 256                     #print 'Received share %s from %r' % (p2pool_data.format_hash(share.hash), share.peer.addr if share.peer is not None else None)
 257
 258                     tracker.add(share)
 259
 260                 if shares and peer is not None:
 261                     peer_heads.setdefault(shares[0].hash, set()).add(peer)
 262
 263                 if new_count:
 264                     set_real_work2()
 265
 266                 if len(shares) > 5:
 267                     print '... done processing %i shares. New: %i Have: %i/~%i' % (len(shares), new_count, len(tracker.shares), 2*net.CHAIN_LENGTH)
 268
 269             def handle_share_hashes(self, hashes, peer):
 270                 t = time.time()
 271                 get_hashes = []
 272                 for share_hash in hashes:
 273                     if share_hash in tracker.shares:
 274                         continue
 275                     last_request_time, count = requested.get(share_hash, (None, 0))
 276                     if last_request_time is not None and last_request_time - 5 < t < last_request_time + 10 * 1.5**count:
 277                         continue
 278                     print 'Got share hash, requesting! Hash: %s' % (p2pool_data.format_hash(share_hash),)
 279                     get_hashes.append(share_hash)
 280                     requested[share_hash] = t, count + 1
 281
 282                 if hashes and peer is not None:
 283                     peer_heads.setdefault(hashes[0], set()).add(peer)
 284                 if get_hashes:
 285                     peer.send_getshares(hashes=get_hashes, parents=0, stops=[])
 286
 287             def handle_get_shares(self, hashes, parents, stops, peer):
 288                 parents = min(parents, 1000//len(hashes))
 289                 stops = set(stops)
 290                 shares = []
 291                 for share_hash in hashes:
 292                     for share in tracker.get_chain(share_hash, min(parents + 1, tracker.get_height(share_hash))):
 293                         if share.hash in stops:
 294                             break
 295                         shares.append(share)
 296                 print 'Sending %i shares to %s:%i' % (len(shares), peer.addr[0], peer.addr[1])
 297                 peer.sendShares(shares)
 298
 299
 300         submit_block = deferral.retry('Error submitting primary block: (will retry)', 10, 10)(lambda block: bitcoind.rpc_getmemorypool(bitcoin_data.block_type.pack(block).encode('hex')))
 301
 302         @tracker.verified.added.watch
 303         def _(share):
 304             if share.pow_hash <= share.header['bits'].target:
 305                 submit_block(share.as_block(tracker))
 306                 print
 307                 print 'GOT BLOCK FROM PEER! Passing to bitcoind! %s bitcoin: %s%064x' % (p2pool_data.format_hash(share.hash), net.PARENT.BLOCK_EXPLORER_URL_PREFIX, share.header_hash)
 308                 print
 309                 recent_blocks.append(dict(ts=share.timestamp, hash='%064x' % (share.header_hash,)))
 310
 311         print 'Joining p2pool network using port %i...' % (args.p2pool_port,)
 312
 313         @defer.inlineCallbacks
 314         def parse(x):
 315             if ':' in x:
 316                 ip, port = x.split(':')
 317                 defer.returnValue(((yield reactor.resolve(ip)), int(port)))
 318             else:
 319                 defer.returnValue(((yield reactor.resolve(x)), net.P2P_PORT))
 320
 321         addrs = {}
 322         if os.path.exists(os.path.join(datadir_path, 'addrs.txt')):
 323             try:
 324                 addrs.update(dict(eval(x) for x in open(os.path.join(datadir_path, 'addrs.txt'))))
 325             except:
 326                 print >>sys.stderr, "error reading addrs"
 327         for addr_df in map(parse, net.BOOTSTRAP_ADDRS):
 328             try:
 329                 addr = yield addr_df
 330                 if addr not in addrs:
 331                     addrs[addr] = (0, time.time(), time.time())
 332             except:
 333                 log.err()
 334
 335         connect_addrs = set()
 336         for addr_df in map(parse, args.p2pool_nodes):
 337             try:
 338                 connect_addrs.add((yield addr_df))
 339             except:
 340                 log.err()
 341
 342         p2p_node = Node(
 343             best_share_hash_func=lambda: current_work.value['best_share_hash'],
 344             port=args.p2pool_port,
 345             net=net,
 346             addr_store=addrs,
 347             connect_addrs=connect_addrs,
 348         )
 349         p2p_node.start()
 350
 351         task.LoopingCall(lambda: open(os.path.join(datadir_path, 'addrs.txt'), 'w').writelines(repr(x) + '\n' for x in p2p_node.addr_store.iteritems())).start(60)
 352
 353         # send share when the chain changes to their chain
 354         def work_changed(new_work):
 355             #print 'Work changed:', new_work
 356             shares = []
 357             for share in tracker.get_chain(new_work['best_share_hash'], min(5, tracker.get_height(new_work['best_share_hash']))):
 358                 if share.hash in shared_share_hashes:
 359                     break
 360                 shared_share_hashes.add(share.hash)
 361                 shares.append(share)
 362
 363             for peer in p2p_node.peers.itervalues():
 364                 peer.sendShares([share for share in shares if share.peer is not peer])
 365
 366         current_work.changed.watch(work_changed)
 367
 368         def save_shares():
 369             for share in tracker.get_chain(current_work.value['best_share_hash'], min(tracker.get_height(current_work.value['best_share_hash']), 2*net.CHAIN_LENGTH)):
 370                 ss.add_share(share)
 371                 if share.hash in tracker.verified.shares:
 372                     ss.add_verified_hash(share.hash)
 373         task.LoopingCall(save_shares).start(60)
 374
 375         print '    ...success!'
 376         print
 377
 378         if args.upnp:
 379             @defer.inlineCallbacks
 380             def upnp_thread():
 381                 while True:
 382                     try:
 383                         is_lan, lan_ip = yield ipdiscover.get_local_ip()
 384                         if is_lan:
 385                             pm = yield portmapper.get_port_mapper()
 386                             yield pm._upnp.add_port_mapping(lan_ip, args.p2pool_port, args.p2pool_port, 'p2pool', 'TCP')
 387                     except defer.TimeoutError:
 388                         pass
 389                     except:
 390                         if p2pool.DEBUG:
 391                             log.err(None, 'UPnP error:')
 392                     yield deferral.sleep(random.expovariate(1/120))
 393             upnp_thread()
 394
 395         # start listening for workers with a JSON-RPC server
 396
 397         print 'Listening for workers on %r port %i...' % (worker_endpoint[0], worker_endpoint[1])
 398
 399         if os.path.exists(os.path.join(datadir_path, 'vip_pass')):
 400             with open(os.path.join(datadir_path, 'vip_pass'), 'rb') as f:
 401                 vip_pass = f.read().strip('\r\n')
 402         else:
 403             vip_pass = '%016x' % (random.randrange(2**64),)
 404             with open(os.path.join(datadir_path, 'vip_pass'), 'wb') as f:
 405                 f.write(vip_pass)
 406         print '    Worker password:', vip_pass, '(only required for generating graphs)'
 407
 408         # setup worker logic
 409
 410         removed_unstales_var = variable.Variable((0, 0, 0))
 411         removed_doa_unstales_var = variable.Variable(0)
 412         @tracker.verified.removed.watch
 413         def _(share):
 414             if share.hash in my_share_hashes and tracker.is_child_of(share.hash, current_work.value['best_share_hash']):
 415                 assert share.share_data['stale_info'] in [0, 253, 254] # we made these shares in this instance
 416                 removed_unstales_var.set((
 417                     removed_unstales_var.value[0] + 1,
 418                     removed_unstales_var.value[1] + (1 if share.share_data['stale_info'] == 253 else 0),
 419                     removed_unstales_var.value[2] + (1 if share.share_data['stale_info'] == 254 else 0),
 420                 ))
 421             if share.hash in my_doa_share_hashes and tracker.is_child_of(share.hash, current_work.value['best_share_hash']):
 422                 removed_doa_unstales.set(removed_doa_unstales.value + 1)
 423
 424         def get_stale_counts():
 425             '''Returns (orphans, doas), total, (orphans_recorded_in_chain, doas_recorded_in_chain)'''
 426             my_shares = len(my_share_hashes)
 427             my_doa_shares = len(my_doa_share_hashes)
 428             delta = tracker.verified.get_delta(current_work.value['best_share_hash'])
 429             my_shares_in_chain = delta.my_count + removed_unstales_var.value[0]
 430             my_doa_shares_in_chain = delta.my_doa_count + removed_doa_unstales_var.value
 431             orphans_recorded_in_chain = delta.my_orphan_announce_count + removed_unstales_var.value[1]
 432             doas_recorded_in_chain = delta.my_dead_announce_count + removed_unstales_var.value[2]
 433
 434             my_shares_not_in_chain = my_shares - my_shares_in_chain
 435             my_doa_shares_not_in_chain = my_doa_shares - my_doa_shares_in_chain
 436
 437             return (my_shares_not_in_chain - my_doa_shares_not_in_chain, my_doa_shares_not_in_chain), my_shares, (orphans_recorded_in_chain, doas_recorded_in_chain)
 438
 439
 440         pseudoshare_received = variable.Event()
 441         local_rate_monitor = math.RateMonitor(10*60)
 442
 443         class WorkerBridge(worker_interface.WorkerBridge):
 444             def __init__(self):
 445                 worker_interface.WorkerBridge.__init__(self)
 446                 self.new_work_event = current_work.changed
 447                 self.recent_shares_ts_work = []
 448
 449             def preprocess_request(self, request):
 450                 user = request.getUser() if request.getUser() is not None else ''
 451
 452                 desired_pseudoshare_target = None
 453                 if '+' in user:
 454                     user, desired_pseudoshare_difficulty_str = user.rsplit('+', 1)
 455                     try:
 456                         desired_pseudoshare_target = bitcoin_data.difficulty_to_target(float(desired_pseudoshare_difficulty_str))
 457                     except:
 458                         pass
 459
 460                 desired_share_target = 2**256 - 1
 461                 if '/' in user:
 462                     user, min_diff_str = user.rsplit('/', 1)
 463                     try:
 464                         desired_share_target = bitcoin_data.difficulty_to_target(float(min_diff_str))
 465                     except:
 466                         pass
 467
 468                 if random.uniform(0, 100) < args.worker_fee:
 469                     pubkey_hash = my_pubkey_hash
 470                 else:
 471                     try:
 472                         pubkey_hash = bitcoin_data.address_to_pubkey_hash(user, net.PARENT)
 473                     except: # XXX blah
 474                         pubkey_hash = my_pubkey_hash
 475
 476                 return pubkey_hash, desired_share_target, desired_pseudoshare_target
 477
 478             def get_work(self, pubkey_hash, desired_share_target, desired_pseudoshare_target):
 479                 if len(p2p_node.peers) == 0 and net.PERSIST:
 480                     raise jsonrpc.Error(-12345, u'p2pool is not connected to any peers')
 481                 if current_work.value['best_share_hash'] is None and net.PERSIST:
 482                     raise jsonrpc.Error(-12345, u'p2pool is downloading shares')
 483                 if time.time() > current_work2.value['last_update'] + 60:
 484                     raise jsonrpc.Error(-12345, u'lost contact with bitcoind')
 485
 486                 if current_work.value['mm_chains']:
 487                     tree, size = bitcoin_data.make_auxpow_tree(current_work.value['mm_chains'])
 488                     mm_hashes = [current_work.value['mm_chains'].get(tree.get(i), dict(hash=0))['hash'] for i in xrange(size)]
 489                     mm_data = '\xfa\xbemm' + bitcoin_data.aux_pow_coinbase_type.pack(dict(
 490                         merkle_root=bitcoin_data.merkle_hash(mm_hashes),
 491                         size=size,
 492                         nonce=0,
 493                     ))
 494                     mm_later = [(aux_work, mm_hashes.index(aux_work['hash']), mm_hashes) for chain_id, aux_work in current_work.value['mm_chains'].iteritems()]
 495                 else:
 496                     mm_data = ''
 497                     mm_later = []
 498
 499                 new = (tracker.shares[current_work.value['best_share_hash']].timestamp if current_work.value['best_share_hash'] is not None else time.time()) > net.SWITCH_TIME
 500
 501                 if new:
 502                     share_info, generate_tx = p2pool_data.new_generate_transaction(
 503                         tracker=tracker,
 504                         share_data=dict(
 505                             previous_share_hash=current_work.value['best_share_hash'],
 506                             coinbase=(mm_data + current_work.value['coinbaseflags'])[:100],
 507                             nonce=random.randrange(2**32),
 508                             pubkey_hash=pubkey_hash,
 509                             subsidy=current_work2.value['subsidy'],
 510                             donation=math.perfect_round(65535*args.donation_percentage/100),
 511                             stale_info=(lambda (orphans, doas), total, (orphans_recorded_in_chain, doas_recorded_in_chain):
 512                                 253 if orphans > orphans_recorded_in_chain else
 513                                 254 if doas > doas_recorded_in_chain else
 514                                 0
 515                             )(*get_stale_counts()),
 516                         ),
 517                         block_target=current_work.value['bits'].target,
 518                         desired_timestamp=int(time.time() - current_work2.value['clock_offset']),
 519                         desired_target=desired_share_target,
 520                         net=net,
 521                     )
 522                 else:
 523                     share_info, generate_tx = p2pool_data.generate_transaction(
 524                         tracker=tracker,
 525                         share_data=dict(
 526                             previous_share_hash=current_work.value['best_share_hash'],
 527                             coinbase=(mm_data + current_work.value['coinbaseflags'])[:100],
 528                             nonce=struct.pack('<Q', random.randrange(2**64)),
 529                             new_script=bitcoin_data.pubkey_hash_to_script2(pubkey_hash),
 530                             subsidy=current_work2.value['subsidy'],
 531                             donation=math.perfect_round(65535*args.donation_percentage/100),
 532                             stale_info=(lambda (orphans, doas), total, (orphans_recorded_in_chain, doas_recorded_in_chain):
 533                                 253 if orphans > orphans_recorded_in_chain else
 534                                 254 if doas > doas_recorded_in_chain else
 535                                 0
 536                             )(*get_stale_counts()),
 537                         ),
 538                         block_target=current_work.value['bits'].target,
 539                         desired_timestamp=int(time.time() - current_work2.value['clock_offset']),
 540                         net=net,
 541                     )
 542
 543                 target = net.PARENT.SANE_MAX_TARGET
 544                 if desired_pseudoshare_target is None:
 545                     if len(self.recent_shares_ts_work) == 50:
 546                         hash_rate = sum(work for ts, work in self.recent_shares_ts_work)//(self.recent_shares_ts_work[-1][0] - self.recent_shares_ts_work[0][0])
 547                         target = min(target, 2**256//hash_rate)
 548                 else:
 549                     target = min(target, desired_pseudoshare_target)
 550                 target = max(target, share_info['bits'].target)
 551                 for aux_work in current_work.value['mm_chains'].itervalues():
 552                     target = max(target, aux_work['target'])
 553
 554                 transactions = [generate_tx] + list(current_work2.value['transactions'])
 555                 packed_generate_tx = bitcoin_data.tx_type.pack(generate_tx)
 556                 merkle_root = bitcoin_data.check_merkle_branch(bitcoin_data.hash256(packed_generate_tx), 0, current_work2.value['merkle_branch'])
 557
 558                 getwork_time = time.time()
 559                 merkle_branch = current_work2.value['merkle_branch']
 560
 561                 print 'New work for worker! Difficulty: %.06f Share difficulty: %.06f Total block value: %.6f %s including %i transactions' % (
 562                     bitcoin_data.target_to_difficulty(target),
 563                     bitcoin_data.target_to_difficulty(share_info['bits'].target),
 564                     current_work2.value['subsidy']*1e-8, net.PARENT.SYMBOL,
 565                     len(current_work2.value['transactions']),
 566                 )
 567
 568                 ba = bitcoin_getwork.BlockAttempt(
 569                     version=current_work.value['version'],
 570                     previous_block=current_work.value['previous_block'],
 571                     merkle_root=merkle_root,
 572                     timestamp=current_work2.value['time'],
 573                     bits=current_work.value['bits'],
 574                     share_target=target,
 575                 )
 576
 577                 received_header_hashes = set()
 578
 579                 def got_response(header, request):
 580                     assert header['merkle_root'] == merkle_root
 581
 582                     header_hash = bitcoin_data.hash256(bitcoin_data.block_header_type.pack(header))
 583                     pow_hash = net.PARENT.POW_FUNC(bitcoin_data.block_header_type.pack(header))
 584                     on_time = current_work.value['best_share_hash'] == share_info['share_data']['previous_share_hash']
 585
 586                     try:
 587                         if pow_hash <= header['bits'].target or p2pool.DEBUG:
 588                             submit_block(dict(header=header, txs=transactions))
 589                             if pow_hash <= header['bits'].target:
 590                                 print
 591                                 print 'GOT BLOCK FROM MINER! Passing to bitcoind! %s%064x' % (net.PARENT.BLOCK_EXPLORER_URL_PREFIX, header_hash)
 592                                 print
 593                                 recent_blocks.append(dict(ts=time.time(), hash='%064x' % (header_hash,)))
 594                     except:
 595                         log.err(None, 'Error while processing potential block:')
 596
 597                     for aux_work, index, hashes in mm_later:
 598                         try:
 599                             if pow_hash <= aux_work['target'] or p2pool.DEBUG:
 600                                 df = deferral.retry('Error submitting merged block: (will retry)', 10, 10)(aux_work['merged_proxy'].rpc_getauxblock)(
 601                                     pack.IntType(256, 'big').pack(aux_work['hash']).encode('hex'),
 602                                     bitcoin_data.aux_pow_type.pack(dict(
 603                                         merkle_tx=dict(
 604                                             tx=transactions[0],
 605                                             block_hash=header_hash,
 606                                             merkle_branch=merkle_branch,
 607                                             index=0,
 608                                         ),
 609                                         merkle_branch=bitcoin_data.calculate_merkle_branch(hashes, index),
 610                                         index=index,
 611                                         parent_block_header=header,
 612                                     )).encode('hex'),
 613                                 )
 614                                 @df.addCallback
 615                                 def _(result):
 616                                     if result != (pow_hash <= aux_work['target']):
 617                                         print >>sys.stderr, 'Merged block submittal result: %s Expected: %s' % (result, pow_hash <= aux_work['target'])
 618                                     else:
 619                                         print 'Merged block submittal result: %s' % (result,)
 620                                 @df.addErrback
 621                                 def _(err):
 622                                     log.err(err, 'Error submitting merged block:')
 623                         except:
 624                             log.err(None, 'Error while processing merged mining POW:')
 625
 626                     if pow_hash <= share_info['bits'].target:
 627                         if new:
 628                             min_header = dict(header);del min_header['merkle_root']
 629                             hash_link = p2pool_data.prefix_to_hash_link(packed_generate_tx[:-32-4], p2pool_data.gentx_before_refhash)
 630                             share = p2pool_data.NewShare(net, None, min_header, share_info, hash_link=hash_link, merkle_branch=merkle_branch, other_txs=transactions[1:] if pow_hash <= header['bits'].target else None)
 631                         else:
 632                             share = p2pool_data.Share(net, None, header, share_info, merkle_branch=merkle_branch, other_txs=transactions[1:] if pow_hash <= header['bits'].target else None)
 633                         print 'GOT SHARE! %s %s prev %s age %.2fs%s' % (
 634                             request.getUser(),
 635                             p2pool_data.format_hash(share.hash),
 636                             p2pool_data.format_hash(share.previous_hash),
 637                             time.time() - getwork_time,
 638                             ' DEAD ON ARRIVAL' if not on_time else '',
 639                         )
 640                         my_share_hashes.add(share.hash)
 641                         if not on_time:
 642                             my_doa_share_hashes.add(share.hash)
 643
 644                         tracker.add(share)
 645                         if not p2pool.DEBUG:
 646                             tracker.verified.add(share)
 647                         set_real_work2()
 648
 649                         try:
 650                             if pow_hash <= header['bits'].target or p2pool.DEBUG:
 651                                 for peer in p2p_node.peers.itervalues():
 652                                     peer.sendShares([share])
 653                                 shared_share_hashes.add(share.hash)
 654                         except:
 655                             log.err(None, 'Error forwarding block solution:')
 656
 657                     if pow_hash > target:
 658                         print 'Worker %s submitted share with hash > target:' % (request.getUser(),)
 659                         print '    Hash:   %56x' % (pow_hash,)
 660                         print '    Target: %56x' % (target,)
 661                     elif header_hash in received_header_hashes:
 662                         print >>sys.stderr, 'Worker %s @ %s submitted share more than once!' % (request.getUser(), request.getClientIP())
 663                     else:
 664                         received_header_hashes.add(header_hash)
 665
 666                         pseudoshare_received.happened(bitcoin_data.target_to_average_attempts(target), not on_time, request.getUser() if request.getPassword() == vip_pass else None)
 667                         self.recent_shares_ts_work.append((time.time(), bitcoin_data.target_to_average_attempts(target)))
 668                         while len(self.recent_shares_ts_work) > 50:
 669                             self.recent_shares_ts_work.pop(0)
 670                         local_rate_monitor.add_datum(dict(work=bitcoin_data.target_to_average_attempts(target), dead=not on_time, user=request.getUser()))
 671
 672                     return on_time
 673
 674                 return ba, got_response
 675
 676         get_current_txouts = lambda: p2pool_data.get_expected_payouts(tracker, current_work.value['best_share_hash'], current_work.value['bits'].target, current_work2.value['subsidy'], net)
 677
 678         web_root = web.get_web_root(tracker, current_work, current_work2, get_current_txouts, datadir_path, net, get_stale_counts, my_pubkey_hash, local_rate_monitor, args.worker_fee, p2p_node, my_share_hashes, recent_blocks, pseudoshare_received)
 679         worker_interface.WorkerInterface(WorkerBridge()).attach_to(web_root)
 680
 681         deferral.retry('Error binding to worker port:', traceback=False)(reactor.listenTCP)(worker_endpoint[1], server.Site(web_root), interface=worker_endpoint[0])
 682
 683         with open(os.path.join(os.path.join(datadir_path, 'ready_flag')), 'wb') as f:
 684             pass
 685
 686         print '    ...success!'
 687         print
 688
 689
 690         @defer.inlineCallbacks
 691         def work_poller():
 692             while True:
 693                 flag = factory.new_block.get_deferred()
 694                 try:
 695                     yield set_real_work1()
 696                 except:
 697                     log.err()
 698                 yield defer.DeferredList([flag, deferral.sleep(15)], fireOnOneCallback=True)
 699         work_poller()
 700
 701
 702         # done!
 703         print 'Started successfully!'
 704         print
 705
 706
 707         if hasattr(signal, 'SIGALRM'):
 708             signal.signal(signal.SIGALRM, lambda signum, frame: reactor.callFromThread(
 709                 sys.stderr.write, 'Watchdog timer went off at:\n' + ''.join(traceback.format_stack())
 710             ))
 711             signal.siginterrupt(signal.SIGALRM, False)
 712             task.LoopingCall(signal.alarm, 30).start(1)
 713
 714         if args.irc_announce:
 715             from twisted.words.protocols import irc
 716             class IRCClient(irc.IRCClient):
 717                 nickname = 'p2pool%02i' % (random.randrange(100),)
 718                 channel = '#p2pool' if net.NAME == 'bitcoin' else '#p2pool-alt'
 719                 def lineReceived(self, line):
 720                     print repr(line)
 721                     irc.IRCClient.lineReceived(self, line)
 722                 def signedOn(self):
 723                     irc.IRCClient.signedOn(self)
 724                     self.factory.resetDelay()
 725                     self.join(self.channel)
 726                     self.watch_id = tracker.verified.added.watch(self._new_share)
 727                     self.announced_hashes = set()
 728                     self.delayed_messages = {}
 729                 def privmsg(self, user, channel, message):
 730                     if channel == self.channel and message in self.delayed_messages:
 731                         self.delayed_messages.pop(message).cancel()
 732                 def _new_share(self, share):
 733                     if share.pow_hash <= share.header['bits'].target and share.header_hash not in self.announced_hashes and abs(share.timestamp - time.time()) < 10*60:
 734                         self.announced_hashes.add(share.header_hash)
 735                         message = '\x02%s BLOCK FOUND by %s! %s%064x' % (net.NAME.upper(), bitcoin_data.script2_to_address(share.new_script, net.PARENT), net.PARENT.BLOCK_EXPLORER_URL_PREFIX, share.header_hash)
 736                         self.delayed_messages[message] = reactor.callLater(random.expovariate(1/5), lambda: (self.say(self.channel, message), self.delayed_messages.pop(message)))
 737                 def connectionLost(self, reason):
 738                     tracker.verified.added.unwatch(self.watch_id)
 739                     print 'IRC connection lost:', reason.getErrorMessage()
 740             class IRCClientFactory(protocol.ReconnectingClientFactory):
 741                 protocol = IRCClient
 742             reactor.connectTCP("irc.freenode.net", 6667, IRCClientFactory())
 743
 744         @defer.inlineCallbacks
 745         def status_thread():
 746             last_str = None
 747             last_time = 0
 748             while True:
 749                 yield deferral.sleep(3)
 750                 try:
 751                     if time.time() > current_work2.value['last_update'] + 60:
 752                         print >>sys.stderr, '''---> LOST CONTACT WITH BITCOIND for %s! Check that it isn't frozen or dead! <---''' % (math.format_dt(time.time() - current_work2.value['last_update']),)
 753
 754                     height = tracker.get_height(current_work.value['best_share_hash'])
 755                     this_str = 'P2Pool: %i shares in chain (%i verified/%i total) Peers: %i (%i incoming)' % (
 756                         height,
 757                         len(tracker.verified.shares),
 758                         len(tracker.shares),
 759                         len(p2p_node.peers),
 760                         sum(1 for peer in p2p_node.peers.itervalues() if peer.incoming),
 761                     ) + (' FDs: %i R/%i W' % (len(reactor.getReaders()), len(reactor.getWriters())) if p2pool.DEBUG else '')
 762
 763                     datums, dt = local_rate_monitor.get_datums_in_last()
 764                     my_att_s = sum(datum['work']/dt for datum in datums)
 765                     this_str += '\n Local: %sH/s in last %s Local dead on arrival: %s Expected time to share: %s' % (
 766                         math.format(int(my_att_s)),
 767                         math.format_dt(dt),
 768                         math.format_binomial_conf(sum(1 for datum in datums if datum['dead']), len(datums), 0.95),
 769                         math.format_dt(2**256 / tracker.shares[current_work.value['best_share_hash']].max_target / my_att_s) if my_att_s and current_work.value['best_share_hash'] else '???',
 770                     )
 771
 772                     if height > 2:
 773                         (stale_orphan_shares, stale_doa_shares), shares, _ = get_stale_counts()
 774                         stale_prop = p2pool_data.get_average_stale_prop(tracker, current_work.value['best_share_hash'], min(720, height))
 775                         real_att_s = p2pool_data.get_pool_attempts_per_second(tracker, current_work.value['best_share_hash'], min(height - 1, 720)) / (1 - stale_prop)
 776
 777                         this_str += '\n Shares: %i (%i orphan, %i dead) Stale rate: %s Efficiency: %s Current payout: %.4f %s' % (
 778                             shares, stale_orphan_shares, stale_doa_shares,
 779                             math.format_binomial_conf(stale_orphan_shares + stale_doa_shares, shares, 0.95),
 780                             math.format_binomial_conf(stale_orphan_shares + stale_doa_shares, shares, 0.95, lambda x: (1 - x)/(1 - stale_prop)),
 781                             get_current_txouts().get(bitcoin_data.pubkey_hash_to_script2(my_pubkey_hash), 0)*1e-8, net.PARENT.SYMBOL,
 782                         )
 783                         this_str += '\n Pool: %sH/s Stale rate: %.1f%% Expected time to block: %s' % (
 784                             math.format(int(real_att_s)),
 785                             100*stale_prop,
 786                             math.format_dt(2**256 / current_work.value['bits'].target / real_att_s),
 787                         )
 788
 789                     if this_str != last_str or time.time() > last_time + 15:
 790                         print this_str
 791                         last_str = this_str
 792                         last_time = time.time()
 793                 except:
 794                     log.err()
 795         status_thread()
 796     except:
 797         log.err(None, 'Fatal error:')
 798         reactor.stop()
 799
 800 def run():
 801     class FixedArgumentParser(argparse.ArgumentParser):
 802         def _read_args_from_files(self, arg_strings):
 803             # expand arguments referencing files
 804             new_arg_strings = []
 805             for arg_string in arg_strings:
 806
 807                 # for regular arguments, just add them back into the list
 808                 if not arg_string or arg_string[0] not in self.fromfile_prefix_chars:
 809                     new_arg_strings.append(arg_string)
 810
 811                 # replace arguments referencing files with the file content
 812                 else:
 813                     try:
 814                         args_file = open(arg_string[1:])
 815                         try:
 816                             arg_strings = []
 817                             for arg_line in args_file.read().splitlines():
 818                                 for arg in self.convert_arg_line_to_args(arg_line):
 819                                     arg_strings.append(arg)
 820                             arg_strings = self._read_args_from_files(arg_strings)
 821                             new_arg_strings.extend(arg_strings)
 822                         finally:
 823                             args_file.close()
 824                     except IOError:
 825                         err = sys.exc_info()[1]
 826                         self.error(str(err))
 827
 828             # return the modified argument list
 829             return new_arg_strings
 830
 831         def convert_arg_line_to_args(self, arg_line):
 832             return [arg for arg in arg_line.split() if arg.strip()]
 833
 834
 835     realnets=dict((name, net) for name, net in networks.nets.iteritems() if '_testnet' not in name)
 836
 837     parser = FixedArgumentParser(description='p2pool (version %s)' % (p2pool.__version__,), fromfile_prefix_chars='@')
 838     parser.add_argument('--version', action='version', version=p2pool.__version__)
 839     parser.add_argument('--net',
 840         help='use specified network (default: bitcoin)',
 841         action='store', choices=sorted(realnets), default='bitcoin', dest='net_name')
 842     parser.add_argument('--testnet',
 843         help='''use the network's testnet''',
 844         action='store_const', const=True, default=False, dest='testnet')
 845     parser.add_argument('--debug',
 846         help='enable debugging mode',
 847         action='store_const', const=True, default=False, dest='debug')
 848     parser.add_argument('-a', '--address',
 849         help='generate payouts to this address (default: <address requested from bitcoind>)',
 850         type=str, action='store', default=None, dest='address')
 851     parser.add_argument('--datadir',
 852         help='store data in this directory (default: <directory run_p2pool.py is in>/data)',
 853         type=str, action='store', default=None, dest='datadir')
 854     parser.add_argument('--logfile',
 855         help='''log to this file (default: data/<NET>/log)''',
 856         type=str, action='store', default=None, dest='logfile')
 857     parser.add_argument('--merged',
 858         help='call getauxblock on this url to get work for merged mining (example: http://ncuser:ncpass@127.0.0.1:10332/)',
 859         type=str, action='append', default=[], dest='merged_urls')
 860     parser.add_argument('--give-author', metavar='DONATION_PERCENTAGE',
 861         help='donate this percentage of work to author of p2pool (default: 0.5)',
 862         type=float, action='store', default=0.5, dest='donation_percentage')
 863     parser.add_argument('--irc-announce',
 864         help='announce any blocks found on irc://irc.freenode.net/#p2pool',
 865         action='store_true', default=False, dest='irc_announce')
 866
 867     p2pool_group = parser.add_argument_group('p2pool interface')
 868     p2pool_group.add_argument('--p2pool-port', metavar='PORT',
 869         help='use port PORT to listen for connections (forward this port from your router!) (default: %s)' % ', '.join('%s:%i' % (name, net.P2P_PORT) for name, net in sorted(realnets.items())),
 870         type=int, action='store', default=None, dest='p2pool_port')
 871     p2pool_group.add_argument('-n', '--p2pool-node', metavar='ADDR[:PORT]',
 872         help='connect to existing p2pool node at ADDR listening on port PORT (defaults to default p2pool P2P port) in addition to builtin addresses',
 873         type=str, action='append', default=[], dest='p2pool_nodes')
 874     parser.add_argument('--disable-upnp',
 875         help='''don't attempt to use UPnP to forward p2pool's P2P port from the Internet to this computer''',
 876         action='store_false', default=True, dest='upnp')
 877
 878     worker_group = parser.add_argument_group('worker interface')
 879     worker_group.add_argument('-w', '--worker-port', metavar='PORT or ADDR:PORT',
 880         help='listen on PORT on interface with ADDR for RPC connections from miners (default: all interfaces, %s)' % ', '.join('%s:%i' % (name, net.WORKER_PORT) for name, net in sorted(realnets.items())),
 881         type=str, action='store', default=None, dest='worker_endpoint')
 882     worker_group.add_argument('-f', '--fee', metavar='FEE_PERCENTAGE',
 883         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:WORKER_PORT/fee (default: 0)''',
 884         type=float, action='store', default=0, dest='worker_fee')
 885
 886     bitcoind_group = parser.add_argument_group('bitcoind interface')
 887     bitcoind_group.add_argument('--bitcoind-address', metavar='BITCOIND_ADDRESS',
 888         help='connect to this address (default: 127.0.0.1)',
 889         type=str, action='store', default='127.0.0.1', dest='bitcoind_address')
 890     bitcoind_group.add_argument('--bitcoind-rpc-port', metavar='BITCOIND_RPC_PORT',
 891         help='''connect to JSON-RPC interface at this port (default: %s <read from bitcoin.conf if password not provided>)''' % ', '.join('%s:%i' % (name, net.PARENT.RPC_PORT) for name, net in sorted(realnets.items())),
 892         type=int, action='store', default=None, dest='bitcoind_rpc_port')
 893     bitcoind_group.add_argument('--bitcoind-p2p-port', metavar='BITCOIND_P2P_PORT',
 894         help='''connect to P2P interface at this port (default: %s <read from bitcoin.conf if password not provided>)''' % ', '.join('%s:%i' % (name, net.PARENT.P2P_PORT) for name, net in sorted(realnets.items())),
 895         type=int, action='store', default=None, dest='bitcoind_p2p_port')
 896
 897     bitcoind_group.add_argument(metavar='BITCOIND_RPCUSERPASS',
 898         help='bitcoind RPC interface username, then password, space-separated (only one being provided will cause the username to default to being empty, and none will cause P2Pool to read them from bitcoin.conf)',
 899         type=str, action='store', default=[], nargs='*', dest='bitcoind_rpc_userpass')
 900
 901     args = parser.parse_args()
 902
 903     if args.debug:
 904         p2pool.DEBUG = True
 905
 906     net_name = args.net_name + ('_testnet' if args.testnet else '')
 907     net = networks.nets[net_name]
 908
 909     datadir_path = os.path.join((os.path.join(os.path.dirname(sys.argv[0]), 'data') if args.datadir is None else args.datadir), net_name)
 910     if not os.path.exists(datadir_path):
 911         os.makedirs(datadir_path)
 912
 913     if len(args.bitcoind_rpc_userpass) > 2:
 914         parser.error('a maximum of two arguments are allowed')
 915     args.bitcoind_rpc_username, args.bitcoind_rpc_password = ([None, None] + args.bitcoind_rpc_userpass)[-2:]
 916
 917     if args.bitcoind_rpc_password is None:
 918         if not hasattr(net.PARENT, 'CONF_FILE_FUNC'):
 919             parser.error('This network has no configuration file function. Manually enter your RPC password.')
 920         conf_path = net.PARENT.CONF_FILE_FUNC()
 921         if not os.path.exists(conf_path):
 922             parser.error('''Bitcoin configuration file not found. Manually enter your RPC password.\r\n'''
 923                 '''If you actually haven't created a configuration file, you should create one at %s with the text:\r\n'''
 924                 '''\r\n'''
 925                 '''server=1\r\n'''
 926                 '''rpcpassword=%x''' % (conf_path, random.randrange(2**128)))
 927         with open(conf_path, 'rb') as f:
 928             cp = ConfigParser.RawConfigParser()
 929             cp.readfp(StringIO.StringIO('[x]\r\n' + f.read()))
 930             for conf_name, var_name, var_type in [
 931                 ('rpcuser', 'bitcoind_rpc_username', str),
 932                 ('rpcpassword', 'bitcoind_rpc_password', str),
 933                 ('rpcport', 'bitcoind_rpc_port', int),
 934                 ('port', 'bitcoind_p2p_port', int),
 935             ]:
 936                 if getattr(args, var_name) is None and cp.has_option('x', conf_name):
 937                     setattr(args, var_name, var_type(cp.get('x', conf_name)))
 938         if args.bitcoind_rpc_password is None:
 939             parser.error('''Bitcoin configuration file didn't contain an rpcpassword= line! Add one!''')
 940
 941     if args.bitcoind_rpc_username is None:
 942         args.bitcoind_rpc_username = ''
 943
 944     if args.bitcoind_rpc_port is None:
 945         args.bitcoind_rpc_port = net.PARENT.RPC_PORT
 946
 947     if args.bitcoind_p2p_port is None:
 948         args.bitcoind_p2p_port = net.PARENT.P2P_PORT
 949
 950     if args.p2pool_port is None:
 951         args.p2pool_port = net.P2P_PORT
 952
 953     if args.worker_endpoint is None:
 954         worker_endpoint = '', net.WORKER_PORT
 955     elif ':' not in args.worker_endpoint:
 956         worker_endpoint = '', int(args.worker_endpoint)
 957     else:
 958         addr, port = args.worker_endpoint.rsplit(':', 1)
 959         worker_endpoint = addr, int(port)
 960
 961     if args.address is not None:
 962         try:
 963             args.pubkey_hash = bitcoin_data.address_to_pubkey_hash(args.address, net.PARENT)
 964         except Exception, e:
 965             parser.error('error parsing address: ' + repr(e))
 966     else:
 967         args.pubkey_hash = None
 968
 969     def separate_url(url):
 970         s = urlparse.urlsplit(url)
 971         if '@' not in s.netloc:
 972             parser.error('merged url netloc must contain an "@"')
 973         userpass, new_netloc = s.netloc.rsplit('@', 1)
 974         return urlparse.urlunsplit(s._replace(netloc=new_netloc)), userpass
 975     merged_urls = map(separate_url, args.merged_urls)
 976
 977     if args.logfile is None:
 978         args.logfile = os.path.join(datadir_path, 'log')
 979
 980     logfile = logging.LogFile(args.logfile)
 981     pipe = logging.TimestampingPipe(logging.TeePipe([logging.EncodeReplacerPipe(sys.stderr), logfile]))
 982     sys.stdout = logging.AbortPipe(pipe)
 983     sys.stderr = log.DefaultObserver.stderr = logging.AbortPipe(logging.PrefixPipe(pipe, '> '))
 984     if hasattr(signal, "SIGUSR1"):
 985         def sigusr1(signum, frame):
 986             print 'Caught SIGUSR1, closing %r...' % (args.logfile,)
 987             logfile.reopen()
 988             print '...and reopened %r after catching SIGUSR1.' % (args.logfile,)
 989         signal.signal(signal.SIGUSR1, sigusr1)
 990     task.LoopingCall(logfile.reopen).start(5)
 991
 992     reactor.callWhenRunning(main, args, net, datadir_path, merged_urls, worker_endpoint)
 993     reactor.run()