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