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         @tracker.verified.added.watch
 300         def _(share):
 301             if share.pow_hash <= share.header['bits'].target:
 302                 if factory.conn.value is not None:
 303                     factory.conn.value.send_block(block=share.as_block(tracker))
 304                 else:
 305                     print >>sys.stderr, 'No bitcoind connection when block submittal attempted! Erp!'
 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                 pubkey_hash = my_pubkey_hash
 452                 max_target = 2**256 - 1
 453                 if '/' in user:
 454                     user, min_diff_str = user.rsplit('/', 1)
 455                     try:
 456                         max_target = bitcoin_data.difficulty_to_target(float(min_diff_str))
 457                     except:
 458                         pass
 459                 try:
 460                     pubkey_hash = bitcoin_data.address_to_pubkey_hash(user, net.PARENT)
 461                 except: # XXX blah
 462                     pass
 463                 if random.uniform(0, 100) < args.worker_fee:
 464                     pubkey_hash = my_pubkey_hash
 465                 return pubkey_hash, max_target
 466
 467             def get_work(self, pubkey_hash, max_target):
 468                 if len(p2p_node.peers) == 0 and net.PERSIST:
 469                     raise jsonrpc.Error(-12345, u'p2pool is not connected to any peers')
 470                 if current_work.value['best_share_hash'] is None and net.PERSIST:
 471                     raise jsonrpc.Error(-12345, u'p2pool is downloading shares')
 472                 if time.time() > current_work2.value['last_update'] + 60:
 473                     raise jsonrpc.Error(-12345, u'lost contact with bitcoind')
 474
 475                 if current_work.value['mm_chains']:
 476                     tree, size = bitcoin_data.make_auxpow_tree(current_work.value['mm_chains'])
 477                     mm_hashes = [current_work.value['mm_chains'].get(tree.get(i), dict(hash=0))['hash'] for i in xrange(size)]
 478                     mm_data = '\xfa\xbemm' + bitcoin_data.aux_pow_coinbase_type.pack(dict(
 479                         merkle_root=bitcoin_data.merkle_hash(mm_hashes),
 480                         size=size,
 481                         nonce=0,
 482                     ))
 483                     mm_later = [(aux_work, mm_hashes.index(aux_work['hash']), mm_hashes) for chain_id, aux_work in current_work.value['mm_chains'].iteritems()]
 484                 else:
 485                     mm_data = ''
 486                     mm_later = []
 487
 488                 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
 489
 490                 if new:
 491                     share_info, generate_tx = p2pool_data.new_generate_transaction(
 492                         tracker=tracker,
 493                         share_data=dict(
 494                             previous_share_hash=current_work.value['best_share_hash'],
 495                             coinbase=(mm_data + current_work.value['coinbaseflags'])[:100],
 496                             nonce=random.randrange(2**32),
 497                             pubkey_hash=pubkey_hash,
 498                             subsidy=current_work2.value['subsidy'],
 499                             donation=math.perfect_round(65535*args.donation_percentage/100),
 500                             stale_info=(lambda (orphans, doas), total, (orphans_recorded_in_chain, doas_recorded_in_chain):
 501                                 253 if orphans > orphans_recorded_in_chain else
 502                                 254 if doas > doas_recorded_in_chain else
 503                                 0
 504                             )(*get_stale_counts()),
 505                         ),
 506                         block_target=current_work.value['bits'].target,
 507                         desired_timestamp=int(time.time() - current_work2.value['clock_offset']),
 508                         desired_target=max_target,
 509                         net=net,
 510                     )
 511                 else:
 512                     share_info, generate_tx = p2pool_data.generate_transaction(
 513                         tracker=tracker,
 514                         share_data=dict(
 515                             previous_share_hash=current_work.value['best_share_hash'],
 516                             coinbase=(mm_data + current_work.value['coinbaseflags'])[:100],
 517                             nonce=struct.pack('<Q', random.randrange(2**64)),
 518                             new_script=bitcoin_data.pubkey_hash_to_script2(pubkey_hash),
 519                             subsidy=current_work2.value['subsidy'],
 520                             donation=math.perfect_round(65535*args.donation_percentage/100),
 521                             stale_info=(lambda (orphans, doas), total, (orphans_recorded_in_chain, doas_recorded_in_chain):
 522                                 253 if orphans > orphans_recorded_in_chain else
 523                                 254 if doas > doas_recorded_in_chain else
 524                                 0
 525                             )(*get_stale_counts()),
 526                         ),
 527                         block_target=current_work.value['bits'].target,
 528                         desired_timestamp=int(time.time() - current_work2.value['clock_offset']),
 529                         net=net,
 530                     )
 531
 532                 target = net.PARENT.SANE_MAX_TARGET
 533                 if len(self.recent_shares_ts_work) == 50:
 534                     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])
 535                     target = min(target, 2**256//(hash_rate))
 536                 target = max(target, share_info['bits'].target)
 537                 for aux_work in current_work.value['mm_chains'].itervalues():
 538                     target = max(target, aux_work['target'])
 539
 540                 transactions = [generate_tx] + list(current_work2.value['transactions'])
 541                 packed_generate_tx = bitcoin_data.tx_type.pack(generate_tx)
 542                 merkle_root = bitcoin_data.check_merkle_branch(bitcoin_data.hash256(packed_generate_tx), 0, current_work2.value['merkle_branch'])
 543
 544                 getwork_time = time.time()
 545                 merkle_branch = current_work2.value['merkle_branch']
 546
 547                 print 'New work for worker! Difficulty: %.06f Share difficulty: %.06f Total block value: %.6f %s including %i transactions' % (
 548                     bitcoin_data.target_to_difficulty(target),
 549                     bitcoin_data.target_to_difficulty(share_info['bits'].target),
 550                     current_work2.value['subsidy']*1e-8, net.PARENT.SYMBOL,
 551                     len(current_work2.value['transactions']),
 552                 )
 553
 554                 ba = bitcoin_getwork.BlockAttempt(
 555                     version=current_work.value['version'],
 556                     previous_block=current_work.value['previous_block'],
 557                     merkle_root=merkle_root,
 558                     timestamp=current_work2.value['time'],
 559                     bits=current_work.value['bits'],
 560                     share_target=target,
 561                 )
 562
 563                 received_header_hashes = set()
 564
 565                 def got_response(header, request):
 566                     assert header['merkle_root'] == merkle_root
 567
 568                     header_hash = bitcoin_data.hash256(bitcoin_data.block_header_type.pack(header))
 569                     pow_hash = net.PARENT.POW_FUNC(bitcoin_data.block_header_type.pack(header))
 570                     on_time = current_work.value['best_share_hash'] == share_info['share_data']['previous_share_hash']
 571
 572                     try:
 573                         if pow_hash <= header['bits'].target or p2pool.DEBUG:
 574                             @deferral.retry('Error submitting primary block: (will retry)', 10, 10)
 575                             def submit_block():
 576                                 if factory.conn.value is None:
 577                                     print >>sys.stderr, 'No bitcoind connection when block submittal attempted! %s%32x' % (net.PARENT.BLOCK_EXPLORER_URL_PREFIX, header_hash)
 578                                     raise deferral.RetrySilentlyException()
 579                                 factory.conn.value.send_block(block=dict(header=header, txs=transactions))
 580                             submit_block()
 581                             if pow_hash <= header['bits'].target:
 582                                 print
 583                                 print 'GOT BLOCK FROM MINER! Passing to bitcoind! %s%064x' % (net.PARENT.BLOCK_EXPLORER_URL_PREFIX, header_hash)
 584                                 print
 585                                 recent_blocks.append(dict(ts=time.time(), hash='%064x' % (header_hash,)))
 586                     except:
 587                         log.err(None, 'Error while processing potential block:')
 588
 589                     for aux_work, index, hashes in mm_later:
 590                         try:
 591                             if pow_hash <= aux_work['target'] or p2pool.DEBUG:
 592                                 df = deferral.retry('Error submitting merged block: (will retry)', 10, 10)(aux_work['merged_proxy'].rpc_getauxblock)(
 593                                     pack.IntType(256, 'big').pack(aux_work['hash']).encode('hex'),
 594                                     bitcoin_data.aux_pow_type.pack(dict(
 595                                         merkle_tx=dict(
 596                                             tx=transactions[0],
 597                                             block_hash=header_hash,
 598                                             merkle_branch=merkle_branch,
 599                                             index=0,
 600                                         ),
 601                                         merkle_branch=bitcoin_data.calculate_merkle_branch(hashes, index),
 602                                         index=index,
 603                                         parent_block_header=header,
 604                                     )).encode('hex'),
 605                                 )
 606                                 @df.addCallback
 607                                 def _(result):
 608                                     if result != (pow_hash <= aux_work['target']):
 609                                         print >>sys.stderr, 'Merged block submittal result: %s Expected: %s' % (result, pow_hash <= aux_work['target'])
 610                                     else:
 611                                         print 'Merged block submittal result: %s' % (result,)
 612                                 @df.addErrback
 613                                 def _(err):
 614                                     log.err(err, 'Error submitting merged block:')
 615                         except:
 616                             log.err(None, 'Error while processing merged mining POW:')
 617
 618                     if pow_hash <= share_info['bits'].target:
 619                         if new:
 620                             min_header = dict(header);del min_header['merkle_root']
 621                             hash_link = p2pool_data.prefix_to_hash_link(packed_generate_tx[:-32-4], p2pool_data.gentx_before_refhash)
 622                             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)
 623                         else:
 624                             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)
 625                         print 'GOT SHARE! %s %s prev %s age %.2fs%s' % (
 626                             request.getUser(),
 627                             p2pool_data.format_hash(share.hash),
 628                             p2pool_data.format_hash(share.previous_hash),
 629                             time.time() - getwork_time,
 630                             ' DEAD ON ARRIVAL' if not on_time else '',
 631                         )
 632                         my_share_hashes.add(share.hash)
 633                         if not on_time:
 634                             my_doa_share_hashes.add(share.hash)
 635
 636                         tracker.add(share)
 637                         if not p2pool.DEBUG:
 638                             tracker.verified.add(share)
 639                         set_real_work2()
 640
 641                         try:
 642                             if pow_hash <= header['bits'].target or p2pool.DEBUG:
 643                                 for peer in p2p_node.peers.itervalues():
 644                                     peer.sendShares([share])
 645                                 shared_share_hashes.add(share.hash)
 646                         except:
 647                             log.err(None, 'Error forwarding block solution:')
 648
 649                     if pow_hash <= target and header_hash not in received_header_hashes:
 650                         pseudoshare_received.happened(bitcoin_data.target_to_average_attempts(target), not on_time, request.getUser() if request.getPassword() == vip_pass else None)
 651                         self.recent_shares_ts_work.append((time.time(), bitcoin_data.target_to_average_attempts(target)))
 652                         while len(self.recent_shares_ts_work) > 50:
 653                             self.recent_shares_ts_work.pop(0)
 654                         local_rate_monitor.add_datum(dict(work=bitcoin_data.target_to_average_attempts(target), dead=not on_time, user=request.getUser()))
 655
 656                     if header_hash in received_header_hashes:
 657                         print >>sys.stderr, 'Worker %s @ %s submitted share more than once!' % (request.getUser(), request.getClientIP())
 658                     received_header_hashes.add(header_hash)
 659
 660                     if pow_hash > target:
 661                         print 'Worker %s submitted share with hash > target:' % (request.getUser(),)
 662                         print '    Hash:   %56x' % (pow_hash,)
 663                         print '    Target: %56x' % (target,)
 664
 665                     return on_time
 666
 667                 return ba, got_response
 668
 669         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)
 670
 671         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)
 672         worker_interface.WorkerInterface(WorkerBridge()).attach_to(web_root)
 673
 674         deferral.retry('Error binding to worker port:', traceback=False)(reactor.listenTCP)(worker_endpoint[1], server.Site(web_root), interface=worker_endpoint[0])
 675
 676         with open(os.path.join(os.path.join(datadir_path, 'ready_flag')), 'wb') as f:
 677             pass
 678
 679         print '    ...success!'
 680         print
 681
 682
 683         @defer.inlineCallbacks
 684         def work_poller():
 685             while True:
 686                 flag = factory.new_block.get_deferred()
 687                 try:
 688                     yield set_real_work1()
 689                 except:
 690                     log.err()
 691                 yield defer.DeferredList([flag, deferral.sleep(15)], fireOnOneCallback=True)
 692         work_poller()
 693
 694
 695         # done!
 696         print 'Started successfully!'
 697         print
 698
 699
 700         if hasattr(signal, 'SIGALRM'):
 701             signal.signal(signal.SIGALRM, lambda signum, frame: reactor.callFromThread(
 702                 sys.stderr.write, 'Watchdog timer went off at:\n' + ''.join(traceback.format_stack())
 703             ))
 704             signal.siginterrupt(signal.SIGALRM, False)
 705             task.LoopingCall(signal.alarm, 30).start(1)
 706
 707         if args.irc_announce:
 708             from twisted.words.protocols import irc
 709             class IRCClient(irc.IRCClient):
 710                 nickname = 'p2pool%02i' % (random.randrange(100),)
 711                 channel = '#p2pool' if net.NAME == 'bitcoin' else '#p2pool-alt'
 712                 def lineReceived(self, line):
 713                     print repr(line)
 714                     irc.IRCClient.lineReceived(self, line)
 715                 def signedOn(self):
 716                     irc.IRCClient.signedOn(self)
 717                     self.factory.resetDelay()
 718                     self.join(self.channel)
 719                     self.watch_id = tracker.verified.added.watch(self._new_share)
 720                     self.announced_hashes = set()
 721                     self.delayed_messages = {}
 722                 def privmsg(self, user, channel, message):
 723                     if channel == self.channel and message in self.delayed_messages:
 724                         self.delayed_messages.pop(message).cancel()
 725                 def _new_share(self, share):
 726                     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:
 727                         self.announced_hashes.add(share.header_hash)
 728                         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)
 729                         self.delayed_messages[message] = reactor.callLater(random.expovariate(1/5), lambda: (self.say(self.channel, message), self.delayed_messages.pop(message)))
 730                 def connectionLost(self, reason):
 731                     tracker.verified.added.unwatch(self.watch_id)
 732                     print 'IRC connection lost:', reason.getErrorMessage()
 733             class IRCClientFactory(protocol.ReconnectingClientFactory):
 734                 protocol = IRCClient
 735             reactor.connectTCP("irc.freenode.net", 6667, IRCClientFactory())
 736
 737         @defer.inlineCallbacks
 738         def status_thread():
 739             last_str = None
 740             last_time = 0
 741             while True:
 742                 yield deferral.sleep(3)
 743                 try:
 744                     if time.time() > current_work2.value['last_update'] + 60:
 745                         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']),)
 746
 747                     height = tracker.get_height(current_work.value['best_share_hash'])
 748                     this_str = 'P2Pool: %i shares in chain (%i verified/%i total) Peers: %i (%i incoming)' % (
 749                         height,
 750                         len(tracker.verified.shares),
 751                         len(tracker.shares),
 752                         len(p2p_node.peers),
 753                         sum(1 for peer in p2p_node.peers.itervalues() if peer.incoming),
 754                     ) + (' FDs: %i R/%i W' % (len(reactor.getReaders()), len(reactor.getWriters())) if p2pool.DEBUG else '')
 755
 756                     datums, dt = local_rate_monitor.get_datums_in_last()
 757                     my_att_s = sum(datum['work']/dt for datum in datums)
 758                     this_str += '\n Local: %sH/s in last %s Local dead on arrival: %s Expected time to share: %s' % (
 759                         math.format(int(my_att_s)),
 760                         math.format_dt(dt),
 761                         math.format_binomial_conf(sum(1 for datum in datums if datum['dead']), len(datums), 0.95),
 762                         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 '???',
 763                     )
 764
 765                     if height > 2:
 766                         (stale_orphan_shares, stale_doa_shares), shares, _ = get_stale_counts()
 767                         stale_prop = p2pool_data.get_average_stale_prop(tracker, current_work.value['best_share_hash'], min(720, height))
 768                         real_att_s = p2pool_data.get_pool_attempts_per_second(tracker, current_work.value['best_share_hash'], min(height - 1, 720)) / (1 - stale_prop)
 769
 770                         this_str += '\n Shares: %i (%i orphan, %i dead) Stale rate: %s Efficiency: %s Current payout: %.4f %s' % (
 771                             shares, stale_orphan_shares, stale_doa_shares,
 772                             math.format_binomial_conf(stale_orphan_shares + stale_doa_shares, shares, 0.95),
 773                             math.format_binomial_conf(stale_orphan_shares + stale_doa_shares, shares, 0.95, lambda x: (1 - x)/(1 - stale_prop)),
 774                             get_current_txouts().get(bitcoin_data.pubkey_hash_to_script2(my_pubkey_hash), 0)*1e-8, net.PARENT.SYMBOL,
 775                         )
 776                         this_str += '\n Pool: %sH/s Stale rate: %.1f%% Expected time to block: %s' % (
 777                             math.format(int(real_att_s)),
 778                             100*stale_prop,
 779                             math.format_dt(2**256 / current_work.value['bits'].target / real_att_s),
 780                         )
 781
 782                     if this_str != last_str or time.time() > last_time + 15:
 783                         print this_str
 784                         last_str = this_str
 785                         last_time = time.time()
 786                 except:
 787                     log.err()
 788         status_thread()
 789     except:
 790         log.err(None, 'Fatal error:')
 791         reactor.stop()
 792
 793 def run():
 794     class FixedArgumentParser(argparse.ArgumentParser):
 795         def _read_args_from_files(self, arg_strings):
 796             # expand arguments referencing files
 797             new_arg_strings = []
 798             for arg_string in arg_strings:
 799
 800                 # for regular arguments, just add them back into the list
 801                 if not arg_string or arg_string[0] not in self.fromfile_prefix_chars:
 802                     new_arg_strings.append(arg_string)
 803
 804                 # replace arguments referencing files with the file content
 805                 else:
 806                     try:
 807                         args_file = open(arg_string[1:])
 808                         try:
 809                             arg_strings = []
 810                             for arg_line in args_file.read().splitlines():
 811                                 for arg in self.convert_arg_line_to_args(arg_line):
 812                                     arg_strings.append(arg)
 813                             arg_strings = self._read_args_from_files(arg_strings)
 814                             new_arg_strings.extend(arg_strings)
 815                         finally:
 816                             args_file.close()
 817                     except IOError:
 818                         err = sys.exc_info()[1]
 819                         self.error(str(err))
 820
 821             # return the modified argument list
 822             return new_arg_strings
 823
 824         def convert_arg_line_to_args(self, arg_line):
 825             return [arg for arg in arg_line.split() if arg.strip()]
 826
 827
 828     realnets=dict((name, net) for name, net in networks.nets.iteritems() if '_testnet' not in name)
 829
 830     parser = FixedArgumentParser(description='p2pool (version %s)' % (p2pool.__version__,), fromfile_prefix_chars='@')
 831     parser.add_argument('--version', action='version', version=p2pool.__version__)
 832     parser.add_argument('--net',
 833         help='use specified network (default: bitcoin)',
 834         action='store', choices=sorted(realnets), default='bitcoin', dest='net_name')
 835     parser.add_argument('--testnet',
 836         help='''use the network's testnet''',
 837         action='store_const', const=True, default=False, dest='testnet')
 838     parser.add_argument('--debug',
 839         help='enable debugging mode',
 840         action='store_const', const=True, default=False, dest='debug')
 841     parser.add_argument('-a', '--address',
 842         help='generate payouts to this address (default: <address requested from bitcoind>)',
 843         type=str, action='store', default=None, dest='address')
 844     parser.add_argument('--datadir',
 845         help='store data in this directory (default: <directory run_p2pool.py is in>/data)',
 846         type=str, action='store', default=None, dest='datadir')
 847     parser.add_argument('--logfile',
 848         help='''log to this file (default: data/<NET>/log)''',
 849         type=str, action='store', default=None, dest='logfile')
 850     parser.add_argument('--merged',
 851         help='call getauxblock on this url to get work for merged mining (example: http://ncuser:ncpass@127.0.0.1:10332/)',
 852         type=str, action='append', default=[], dest='merged_urls')
 853     parser.add_argument('--give-author', metavar='DONATION_PERCENTAGE',
 854         help='donate this percentage of work to author of p2pool (default: 0.5)',
 855         type=float, action='store', default=0.5, dest='donation_percentage')
 856     parser.add_argument('--irc-announce',
 857         help='announce any blocks found on irc://irc.freenode.net/#p2pool',
 858         action='store_true', default=False, dest='irc_announce')
 859
 860     p2pool_group = parser.add_argument_group('p2pool interface')
 861     p2pool_group.add_argument('--p2pool-port', metavar='PORT',
 862         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())),
 863         type=int, action='store', default=None, dest='p2pool_port')
 864     p2pool_group.add_argument('-n', '--p2pool-node', metavar='ADDR[:PORT]',
 865         help='connect to existing p2pool node at ADDR listening on port PORT (defaults to default p2pool P2P port) in addition to builtin addresses',
 866         type=str, action='append', default=[], dest='p2pool_nodes')
 867     parser.add_argument('--disable-upnp',
 868         help='''don't attempt to use UPnP to forward p2pool's P2P port from the Internet to this computer''',
 869         action='store_false', default=True, dest='upnp')
 870
 871     worker_group = parser.add_argument_group('worker interface')
 872     worker_group.add_argument('-w', '--worker-port', metavar='PORT or ADDR:PORT',
 873         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())),
 874         type=str, action='store', default=None, dest='worker_endpoint')
 875     worker_group.add_argument('-f', '--fee', metavar='FEE_PERCENTAGE',
 876         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)''',
 877         type=float, action='store', default=0, dest='worker_fee')
 878
 879     bitcoind_group = parser.add_argument_group('bitcoind interface')
 880     bitcoind_group.add_argument('--bitcoind-address', metavar='BITCOIND_ADDRESS',
 881         help='connect to this address (default: 127.0.0.1)',
 882         type=str, action='store', default='127.0.0.1', dest='bitcoind_address')
 883     bitcoind_group.add_argument('--bitcoind-rpc-port', metavar='BITCOIND_RPC_PORT',
 884         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())),
 885         type=int, action='store', default=None, dest='bitcoind_rpc_port')
 886     bitcoind_group.add_argument('--bitcoind-p2p-port', metavar='BITCOIND_P2P_PORT',
 887         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())),
 888         type=int, action='store', default=None, dest='bitcoind_p2p_port')
 889
 890     bitcoind_group.add_argument(metavar='BITCOIND_RPCUSERPASS',
 891         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)',
 892         type=str, action='store', default=[], nargs='*', dest='bitcoind_rpc_userpass')
 893
 894     args = parser.parse_args()
 895
 896     if args.debug:
 897         p2pool.DEBUG = True
 898
 899     net_name = args.net_name + ('_testnet' if args.testnet else '')
 900     net = networks.nets[net_name]
 901
 902     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)
 903     if not os.path.exists(datadir_path):
 904         os.makedirs(datadir_path)
 905
 906     if len(args.bitcoind_rpc_userpass) > 2:
 907         parser.error('a maximum of two arguments are allowed')
 908     args.bitcoind_rpc_username, args.bitcoind_rpc_password = ([None, None] + args.bitcoind_rpc_userpass)[-2:]
 909
 910     if args.bitcoind_rpc_password is None:
 911         if not hasattr(net.PARENT, 'CONF_FILE_FUNC'):
 912             parser.error('This network has no configuration file function. Manually enter your RPC password.')
 913         conf_path = net.PARENT.CONF_FILE_FUNC()
 914         if not os.path.exists(conf_path):
 915             parser.error('''Bitcoin configuration file not found. Manually enter your RPC password.\r\n'''
 916                 '''If you actually haven't created a configuration file, you should create one at %s with the text:\r\n'''
 917                 '''\r\n'''
 918                 '''server=1\r\n'''
 919                 '''rpcpassword=%x''' % (conf_path, random.randrange(2**128)))
 920         with open(conf_path, 'rb') as f:
 921             cp = ConfigParser.RawConfigParser()
 922             cp.readfp(StringIO.StringIO('[x]\r\n' + f.read()))
 923             for conf_name, var_name, var_type in [
 924                 ('rpcuser', 'bitcoind_rpc_username', str),
 925                 ('rpcpassword', 'bitcoind_rpc_password', str),
 926                 ('rpcport', 'bitcoind_rpc_port', int),
 927                 ('port', 'bitcoind_p2p_port', int),
 928             ]:
 929                 if getattr(args, var_name) is None and cp.has_option('x', conf_name):
 930                     setattr(args, var_name, var_type(cp.get('x', conf_name)))
 931
 932     if args.bitcoind_rpc_username is None:
 933         args.bitcoind_rpc_username = ''
 934
 935     if args.bitcoind_rpc_port is None:
 936         args.bitcoind_rpc_port = net.PARENT.RPC_PORT
 937
 938     if args.bitcoind_p2p_port is None:
 939         args.bitcoind_p2p_port = net.PARENT.P2P_PORT
 940
 941     if args.p2pool_port is None:
 942         args.p2pool_port = net.P2P_PORT
 943
 944     if args.worker_endpoint is None:
 945         worker_endpoint = '', net.WORKER_PORT
 946     elif ':' not in args.worker_endpoint:
 947         worker_endpoint = '', int(args.worker_endpoint)
 948     else:
 949         addr, port = args.worker_endpoint.rsplit(':', 1)
 950         worker_endpoint = addr, int(port)
 951
 952     if args.address is not None:
 953         try:
 954             args.pubkey_hash = bitcoin_data.address_to_pubkey_hash(args.address, net.PARENT)
 955         except Exception, e:
 956             parser.error('error parsing address: ' + repr(e))
 957     else:
 958         args.pubkey_hash = None
 959
 960     def separate_url(url):
 961         s = urlparse.urlsplit(url)
 962         if '@' not in s.netloc:
 963             parser.error('merged url netloc must contain an "@"')
 964         userpass, new_netloc = s.netloc.rsplit('@', 1)
 965         return urlparse.urlunsplit(s._replace(netloc=new_netloc)), userpass
 966     merged_urls = map(separate_url, args.merged_urls)
 967
 968     if args.logfile is None:
 969         args.logfile = os.path.join(datadir_path, 'log')
 970
 971     logfile = logging.LogFile(args.logfile)
 972     pipe = logging.TimestampingPipe(logging.TeePipe([logging.EncodeReplacerPipe(sys.stderr), logfile]))
 973     sys.stdout = logging.AbortPipe(pipe)
 974     sys.stderr = log.DefaultObserver.stderr = logging.AbortPipe(logging.PrefixPipe(pipe, '> '))
 975     if hasattr(signal, "SIGUSR1"):
 976         def sigusr1(signum, frame):
 977             print 'Caught SIGUSR1, closing %r...' % (args.logfile,)
 978             logfile.reopen()
 979             print '...and reopened %r after catching SIGUSR1.' % (args.logfile,)
 980         signal.signal(signal.SIGUSR1, sigusr1)
 981     task.LoopingCall(logfile.reopen).start(5)
 982
 983     reactor.callWhenRunning(main, args, net, datadir_path, merged_urls, worker_endpoint)
 984     reactor.run()