p2pool/main.py

   1 from __future__ import division
   2
   3 import ConfigParser
   4 import StringIO
   5 import argparse
   6 import base64
   7 import os
   8 import random
   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, height_tracker
  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_link=bitcoin_data.calculate_merkle_link([0] + map(bitcoin_data.hash256, packed_transactions), 0), # using 0 is a bit of a hack, but will always work when index=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, dict(Authorization='Basic ' + base64.b64encode(args.bitcoind_rpc_username + ':' + args.bitcoind_rpc_password)), timeout=30)
  58         @deferral.retry('Error while checking Bitcoin connection:', 1)
  59         @defer.inlineCallbacks
  60         def check():
  61             if not (yield net.PARENT.RPC_CHECK)(bitcoind):
  62                 print >>sys.stderr, "    Check failed! Make sure that you're connected to the right bitcoind with --bitcoind-rpc-port!"
  63                 raise deferral.RetrySilentlyException()
  64             temp_work = yield getwork(bitcoind)
  65             if not net.VERSION_CHECK((yield bitcoind.rpc_getinfo())['version'], temp_work):
  66                 print >>sys.stderr, '    Bitcoin version too old! BIP16 support required! Upgrade to 0.6.0rc4 or greater!'
  67                 raise deferral.RetrySilentlyException()
  68             defer.returnValue(temp_work)
  69         temp_work = yield check()
  70         print '    ...success!'
  71         print '    Current block hash: %x' % (temp_work['previous_block_hash'],)
  72         print
  73
  74         # connect to bitcoind over bitcoin-p2p
  75         print '''Testing bitcoind P2P connection to '%s:%s'...''' % (args.bitcoind_address, args.bitcoind_p2p_port)
  76         factory = bitcoin_p2p.ClientFactory(net.PARENT)
  77         reactor.connectTCP(args.bitcoind_address, args.bitcoind_p2p_port, factory)
  78         yield factory.getProtocol() # waits until handshake is successful
  79         print '    ...success!'
  80         print
  81
  82         print 'Determining payout address...'
  83         if args.pubkey_hash is None:
  84             address_path = os.path.join(datadir_path, 'cached_payout_address')
  85
  86             if os.path.exists(address_path):
  87                 with open(address_path, 'rb') as f:
  88                     address = f.read().strip('\r\n')
  89                 print '    Loaded cached address: %s...' % (address,)
  90             else:
  91                 address = None
  92
  93             if address is not None:
  94                 res = yield deferral.retry('Error validating cached address:', 5)(lambda: bitcoind.rpc_validateaddress(address))()
  95                 if not res['isvalid'] or not res['ismine']:
  96                     print '    Cached address is either invalid or not controlled by local bitcoind!'
  97                     address = None
  98
  99             if address is None:
 100                 print '    Getting payout address from bitcoind...'
 101                 address = yield deferral.retry('Error getting payout address from bitcoind:', 5)(lambda: bitcoind.rpc_getaccountaddress('p2pool'))()
 102
 103             with open(address_path, 'wb') as f:
 104                 f.write(address)
 105
 106             my_pubkey_hash = bitcoin_data.address_to_pubkey_hash(address, net.PARENT)
 107         else:
 108             my_pubkey_hash = args.pubkey_hash
 109         print '    ...success! Payout address:', bitcoin_data.pubkey_hash_to_address(my_pubkey_hash, net.PARENT)
 110         print
 111
 112         my_share_hashes = set()
 113         my_doa_share_hashes = set()
 114
 115         tracker = p2pool_data.OkayTracker(net, my_share_hashes, my_doa_share_hashes)
 116         shared_share_hashes = set()
 117         ss = p2pool_data.ShareStore(os.path.join(datadir_path, 'shares.'), net)
 118         known_verified = set()
 119         recent_blocks = []
 120         print "Loading shares..."
 121         for i, (mode, contents) in enumerate(ss.get_shares()):
 122             if mode == 'share':
 123                 if contents.hash in tracker.shares:
 124                     continue
 125                 shared_share_hashes.add(contents.hash)
 126                 contents.time_seen = 0
 127                 tracker.add(contents)
 128                 if len(tracker.shares) % 1000 == 0 and tracker.shares:
 129                     print "    %i" % (len(tracker.shares),)
 130             elif mode == 'verified_hash':
 131                 known_verified.add(contents)
 132             else:
 133                 raise AssertionError()
 134         print "    ...inserting %i verified shares..." % (len(known_verified),)
 135         for h in known_verified:
 136             if h not in tracker.shares:
 137                 ss.forget_verified_share(h)
 138                 continue
 139             tracker.verified.add(tracker.shares[h])
 140         print "    ...done loading %i shares!" % (len(tracker.shares),)
 141         print
 142         tracker.removed.watch(lambda share: ss.forget_share(share.hash))
 143         tracker.verified.removed.watch(lambda share: ss.forget_verified_share(share.hash))
 144         tracker.removed.watch(lambda share: shared_share_hashes.discard(share.hash))
 145
 146         peer_heads = expiring_dict.ExpiringDict(300) # hash -> peers that know of it
 147
 148         pre_current_work = variable.Variable(None)
 149         pre_merged_work = variable.Variable({})
 150         # information affecting work that should trigger a long-polling update
 151         current_work = variable.Variable(None)
 152         # information affecting work that should not trigger a long-polling update
 153         current_work2 = variable.Variable(None)
 154
 155         requested = expiring_dict.ExpiringDict(300)
 156
 157         print 'Initializing work...'
 158         @defer.inlineCallbacks
 159         def set_real_work1():
 160             work = yield getwork(bitcoind)
 161             current_work2.set(dict(
 162                 time=work['time'],
 163                 transactions=work['transactions'],
 164                 merkle_link=work['merkle_link'],
 165                 subsidy=work['subsidy'],
 166                 clock_offset=time.time() - work['time'],
 167                 last_update=time.time(),
 168             )) # second set first because everything hooks on the first
 169             pre_current_work.set(dict(
 170                 version=work['version'],
 171                 previous_block=work['previous_block_hash'],
 172                 bits=work['bits'],
 173                 coinbaseflags=work['coinbaseflags'],
 174             ))
 175         yield set_real_work1()
 176
 177         get_height_rel_highest = yield height_tracker.get_height_rel_highest_func(bitcoind, factory, lambda: pre_current_work.value['previous_block'], net)
 178
 179         def set_real_work2():
 180             best, desired = tracker.think(get_height_rel_highest, pre_current_work.value['previous_block'], pre_current_work.value['bits'])
 181
 182             t = dict(pre_current_work.value)
 183             t['best_share_hash'] = best
 184             t['mm_chains'] = pre_merged_work.value
 185             current_work.set(t)
 186
 187             t = time.time()
 188             for peer2, share_hash in desired:
 189                 if share_hash not in tracker.tails: # was received in the time tracker.think was running
 190                     continue
 191                 last_request_time, count = requested.get(share_hash, (None, 0))
 192                 if last_request_time is not None and last_request_time - 5 < t < last_request_time + 10 * 1.5**count:
 193                     continue
 194                 potential_peers = set()
 195                 for head in tracker.tails[share_hash]:
 196                     potential_peers.update(peer_heads.get(head, set()))
 197                 potential_peers = [peer for peer in potential_peers if peer.connected2]
 198                 if count == 0 and peer2 is not None and peer2.connected2:
 199                     peer = peer2
 200                 else:
 201                     peer = random.choice(potential_peers) if potential_peers and random.random() > .2 else peer2
 202                     if peer is None:
 203                         continue
 204
 205                 print 'Requesting parent share %s from %s' % (p2pool_data.format_hash(share_hash), '%s:%i' % peer.addr)
 206                 peer.send_getshares(
 207                     hashes=[share_hash],
 208                     parents=2000,
 209                     stops=list(set(tracker.heads) | set(
 210                         tracker.get_nth_parent_hash(head, min(max(0, tracker.get_height_and_last(head)[0] - 1), 10)) for head in tracker.heads
 211                     ))[:100],
 212                 )
 213                 requested[share_hash] = t, count + 1
 214         pre_current_work.changed.watch(lambda _: set_real_work2())
 215         pre_merged_work.changed.watch(lambda _: set_real_work2())
 216         set_real_work2()
 217         print '    ...success!'
 218         print
 219
 220
 221         @defer.inlineCallbacks
 222         def set_merged_work(merged_url, merged_userpass):
 223             merged_proxy = jsonrpc.Proxy(merged_url, dict(Authorization='Basic ' + base64.b64encode(merged_userpass)))
 224             while True:
 225                 auxblock = yield deferral.retry('Error while calling merged getauxblock:', 1)(merged_proxy.rpc_getauxblock)()
 226                 pre_merged_work.set(dict(pre_merged_work.value, **{auxblock['chainid']: dict(
 227                     hash=int(auxblock['hash'], 16),
 228                     target=pack.IntType(256).unpack(auxblock['target'].decode('hex')),
 229                     merged_proxy=merged_proxy,
 230                 )}))
 231                 yield deferral.sleep(1)
 232         for merged_url, merged_userpass in merged_urls:
 233             set_merged_work(merged_url, merged_userpass)
 234
 235         @pre_merged_work.changed.watch
 236         def _(new_merged_work):
 237             print 'Got new merged mining work!'
 238
 239         # setup p2p logic and join p2pool network
 240
 241         class Node(p2p.Node):
 242             def handle_shares(self, shares, peer):
 243                 if len(shares) > 5:
 244                     print 'Processing %i shares from %s...' % (len(shares), '%s:%i' % peer.addr if peer is not None else None)
 245
 246                 new_count = 0
 247                 for share in shares:
 248                     if share.hash in tracker.shares:
 249                         #print 'Got duplicate share, ignoring. Hash: %s' % (p2pool_data.format_hash(share.hash),)
 250                         continue
 251
 252                     new_count += 1
 253
 254                     #print 'Received share %s from %r' % (p2pool_data.format_hash(share.hash), share.peer.addr if share.peer is not None else None)
 255
 256                     tracker.add(share)
 257
 258                 if shares and peer is not None:
 259                     peer_heads.setdefault(shares[0].hash, set()).add(peer)
 260
 261                 if new_count:
 262                     set_real_work2()
 263
 264                 if len(shares) > 5:
 265                     print '... done processing %i shares. New: %i Have: %i/~%i' % (len(shares), new_count, len(tracker.shares), 2*net.CHAIN_LENGTH)
 266
 267             def handle_share_hashes(self, hashes, peer):
 268                 t = time.time()
 269                 get_hashes = []
 270                 for share_hash in hashes:
 271                     if share_hash in tracker.shares:
 272                         continue
 273                     last_request_time, count = requested.get(share_hash, (None, 0))
 274                     if last_request_time is not None and last_request_time - 5 < t < last_request_time + 10 * 1.5**count:
 275                         continue
 276                     print 'Got share hash, requesting! Hash: %s' % (p2pool_data.format_hash(share_hash),)
 277                     get_hashes.append(share_hash)
 278                     requested[share_hash] = t, count + 1
 279
 280                 if hashes and peer is not None:
 281                     peer_heads.setdefault(hashes[0], set()).add(peer)
 282                 if get_hashes:
 283                     peer.send_getshares(hashes=get_hashes, parents=0, stops=[])
 284
 285             def handle_get_shares(self, hashes, parents, stops, peer):
 286                 parents = min(parents, 1000//len(hashes))
 287                 stops = set(stops)
 288                 shares = []
 289                 for share_hash in hashes:
 290                     for share in tracker.get_chain(share_hash, min(parents + 1, tracker.get_height(share_hash))):
 291                         if share.hash in stops:
 292                             break
 293                         shares.append(share)
 294                 print 'Sending %i shares to %s:%i' % (len(shares), peer.addr[0], peer.addr[1])
 295                 return shares
 296
 297         @deferral.retry('Error submitting block: (will retry)', 10, 10)
 298         @defer.inlineCallbacks
 299         def submit_block(block, ignore_failure):
 300             success = yield bitcoind.rpc_getmemorypool(bitcoin_data.block_type.pack(block).encode('hex'))
 301             success_expected = net.PARENT.POW_FUNC(bitcoin_data.block_header_type.pack(block['header'])) <= block['header']['bits'].target
 302             if (not success and success_expected and not ignore_failure) or (success and not success_expected):
 303                 print >>sys.stderr, 'Block submittal result: %s Expected: %s' % (result, expected_result)
 304
 305         @tracker.verified.added.watch
 306         def _(share):
 307             if share.pow_hash <= share.header['bits'].target:
 308                 submit_block(share.as_block(tracker), ignore_failure=True)
 309                 print
 310                 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)
 311                 print
 312                 recent_blocks.append(dict(ts=share.timestamp, hash='%064x' % (share.header_hash,)))
 313
 314         print 'Joining p2pool network using port %i...' % (args.p2pool_port,)
 315
 316         @defer.inlineCallbacks
 317         def parse(x):
 318             if ':' in x:
 319                 ip, port = x.split(':')
 320                 defer.returnValue(((yield reactor.resolve(ip)), int(port)))
 321             else:
 322                 defer.returnValue(((yield reactor.resolve(x)), net.P2P_PORT))
 323
 324         addrs = {}
 325         if os.path.exists(os.path.join(datadir_path, 'addrs.txt')):
 326             try:
 327                 addrs.update(dict(eval(x) for x in open(os.path.join(datadir_path, 'addrs.txt'))))
 328             except:
 329                 print >>sys.stderr, "error reading addrs"
 330         for addr_df in map(parse, net.BOOTSTRAP_ADDRS):
 331             try:
 332                 addr = yield addr_df
 333                 if addr not in addrs:
 334                     addrs[addr] = (0, time.time(), time.time())
 335             except:
 336                 log.err()
 337
 338         connect_addrs = set()
 339         for addr_df in map(parse, args.p2pool_nodes):
 340             try:
 341                 connect_addrs.add((yield addr_df))
 342             except:
 343                 log.err()
 344
 345         p2p_node = Node(
 346             best_share_hash_func=lambda: current_work.value['best_share_hash'],
 347             port=args.p2pool_port,
 348             net=net,
 349             addr_store=addrs,
 350             connect_addrs=connect_addrs,
 351             max_incoming_conns=args.p2pool_conns,
 352         )
 353         p2p_node.start()
 354
 355         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)
 356
 357         # send share when the chain changes to their chain
 358         def work_changed(new_work):
 359             #print 'Work changed:', new_work
 360             shares = []
 361             for share in tracker.get_chain(new_work['best_share_hash'], min(5, tracker.get_height(new_work['best_share_hash']))):
 362                 if share.hash in shared_share_hashes:
 363                     break
 364                 shared_share_hashes.add(share.hash)
 365                 shares.append(share)
 366
 367             for peer in p2p_node.peers.itervalues():
 368                 peer.sendShares([share for share in shares if share.peer is not peer])
 369
 370         current_work.changed.watch(work_changed)
 371
 372         def save_shares():
 373             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)):
 374                 ss.add_share(share)
 375                 if share.hash in tracker.verified.shares:
 376                     ss.add_verified_hash(share.hash)
 377         task.LoopingCall(save_shares).start(60)
 378
 379         print '    ...success!'
 380         print
 381
 382         if args.upnp:
 383             @defer.inlineCallbacks
 384             def upnp_thread():
 385                 while True:
 386                     try:
 387                         is_lan, lan_ip = yield ipdiscover.get_local_ip()
 388                         if is_lan:
 389                             pm = yield portmapper.get_port_mapper()
 390                             yield pm._upnp.add_port_mapping(lan_ip, args.p2pool_port, args.p2pool_port, 'p2pool', 'TCP')
 391                     except defer.TimeoutError:
 392                         pass
 393                     except:
 394                         if p2pool.DEBUG:
 395                             log.err(None, 'UPnP error:')
 396                     yield deferral.sleep(random.expovariate(1/120))
 397             upnp_thread()
 398
 399         # start listening for workers with a JSON-RPC server
 400
 401         print 'Listening for workers on %r port %i...' % (worker_endpoint[0], worker_endpoint[1])
 402
 403         if os.path.exists(os.path.join(datadir_path, 'vip_pass')):
 404             with open(os.path.join(datadir_path, 'vip_pass'), 'rb') as f:
 405                 vip_pass = f.read().strip('\r\n')
 406         else:
 407             vip_pass = '%016x' % (random.randrange(2**64),)
 408             with open(os.path.join(datadir_path, 'vip_pass'), 'wb') as f:
 409                 f.write(vip_pass)
 410         print '    Worker password:', vip_pass, '(only required for generating graphs)'
 411
 412         # setup worker logic
 413
 414         removed_unstales_var = variable.Variable((0, 0, 0))
 415         removed_doa_unstales_var = variable.Variable(0)
 416         @tracker.verified.removed.watch
 417         def _(share):
 418             if share.hash in my_share_hashes and tracker.is_child_of(share.hash, current_work.value['best_share_hash']):
 419                 assert share.share_data['stale_info'] in [0, 253, 254] # we made these shares in this instance
 420                 removed_unstales_var.set((
 421                     removed_unstales_var.value[0] + 1,
 422                     removed_unstales_var.value[1] + (1 if share.share_data['stale_info'] == 253 else 0),
 423                     removed_unstales_var.value[2] + (1 if share.share_data['stale_info'] == 254 else 0),
 424                 ))
 425             if share.hash in my_doa_share_hashes and tracker.is_child_of(share.hash, current_work.value['best_share_hash']):
 426                 removed_doa_unstales.set(removed_doa_unstales.value + 1)
 427
 428         def get_stale_counts():
 429             '''Returns (orphans, doas), total, (orphans_recorded_in_chain, doas_recorded_in_chain)'''
 430             my_shares = len(my_share_hashes)
 431             my_doa_shares = len(my_doa_share_hashes)
 432             delta = tracker.verified.get_delta(current_work.value['best_share_hash'])
 433             my_shares_in_chain = delta.my_count + removed_unstales_var.value[0]
 434             my_doa_shares_in_chain = delta.my_doa_count + removed_doa_unstales_var.value
 435             orphans_recorded_in_chain = delta.my_orphan_announce_count + removed_unstales_var.value[1]
 436             doas_recorded_in_chain = delta.my_dead_announce_count + removed_unstales_var.value[2]
 437
 438             my_shares_not_in_chain = my_shares - my_shares_in_chain
 439             my_doa_shares_not_in_chain = my_doa_shares - my_doa_shares_in_chain
 440
 441             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)
 442
 443
 444         pseudoshare_received = variable.Event()
 445         local_rate_monitor = math.RateMonitor(10*60)
 446
 447         class WorkerBridge(worker_interface.WorkerBridge):
 448             def __init__(self):
 449                 worker_interface.WorkerBridge.__init__(self)
 450                 self.new_work_event = current_work.changed
 451                 self.recent_shares_ts_work = []
 452
 453             def preprocess_request(self, request):
 454                 user = request.getUser() if request.getUser() is not None else ''
 455
 456                 desired_pseudoshare_target = None
 457                 if '+' in user:
 458                     user, desired_pseudoshare_difficulty_str = user.rsplit('+', 1)
 459                     try:
 460                         desired_pseudoshare_target = bitcoin_data.difficulty_to_target(float(desired_pseudoshare_difficulty_str))
 461                     except:
 462                         pass
 463
 464                 desired_share_target = 2**256 - 1
 465                 if '/' in user:
 466                     user, min_diff_str = user.rsplit('/', 1)
 467                     try:
 468                         desired_share_target = bitcoin_data.difficulty_to_target(float(min_diff_str))
 469                     except:
 470                         pass
 471
 472                 if random.uniform(0, 100) < args.worker_fee:
 473                     pubkey_hash = my_pubkey_hash
 474                 else:
 475                     try:
 476                         pubkey_hash = bitcoin_data.address_to_pubkey_hash(user, net.PARENT)
 477                     except: # XXX blah
 478                         pubkey_hash = my_pubkey_hash
 479
 480                 return pubkey_hash, desired_share_target, desired_pseudoshare_target
 481
 482             def get_work(self, pubkey_hash, desired_share_target, desired_pseudoshare_target):
 483                 if len(p2p_node.peers) == 0 and net.PERSIST:
 484                     raise jsonrpc.Error(-12345, u'p2pool is not connected to any peers')
 485                 if current_work.value['best_share_hash'] is None and net.PERSIST:
 486                     raise jsonrpc.Error(-12345, u'p2pool is downloading shares')
 487                 if time.time() > current_work2.value['last_update'] + 60:
 488                     raise jsonrpc.Error(-12345, u'lost contact with bitcoind')
 489
 490                 if current_work.value['mm_chains']:
 491                     tree, size = bitcoin_data.make_auxpow_tree(current_work.value['mm_chains'])
 492                     mm_hashes = [current_work.value['mm_chains'].get(tree.get(i), dict(hash=0))['hash'] for i in xrange(size)]
 493                     mm_data = '\xfa\xbemm' + bitcoin_data.aux_pow_coinbase_type.pack(dict(
 494                         merkle_root=bitcoin_data.merkle_hash(mm_hashes),
 495                         size=size,
 496                         nonce=0,
 497                     ))
 498                     mm_later = [(aux_work, mm_hashes.index(aux_work['hash']), mm_hashes) for chain_id, aux_work in current_work.value['mm_chains'].iteritems()]
 499                 else:
 500                     mm_data = ''
 501                     mm_later = []
 502
 503                 def predict_timestamp():
 504                     desired_timestamp = int(time.time() - current_work2.value['clock_offset'])
 505                     previous_share = tracker.shares[current_work.value['best_share_hash']] if current_work.value['best_share_hash'] is not None else None
 506                     return math.clip(desired_timestamp, (
 507                         (previous_share.timestamp + net.SHARE_PERIOD) - (net.SHARE_PERIOD - 1), # = previous_share.timestamp + 1
 508                         (previous_share.timestamp + net.SHARE_PERIOD) + (net.SHARE_PERIOD - 1),
 509                     )) if previous_share is not None else desired_timestamp
 510                 new = predict_timestamp() >= net.SWITCH_TIME
 511                 if new:
 512                     share_info, generate_tx = p2pool_data.NewShare.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=random.randrange(2**32),
 518                             pubkey_hash=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                             desired_version=1,
 527                         ),
 528                         block_target=current_work.value['bits'].target,
 529                         desired_timestamp=int(time.time() - current_work2.value['clock_offset']),
 530                         desired_target=desired_share_target,
 531                         ref_merkle_link=dict(branch=[], index=0),
 532                         net=net,
 533                     )
 534                 else:
 535                     share_info, generate_tx = p2pool_data.Share.generate_transaction(
 536                         tracker=tracker,
 537                         share_data=dict(
 538                             previous_share_hash=current_work.value['best_share_hash'],
 539                             coinbase=(mm_data + current_work.value['coinbaseflags'])[:100],
 540                             nonce=random.randrange(2**32),
 541                             pubkey_hash=pubkey_hash,
 542                             subsidy=current_work2.value['subsidy'],
 543                             donation=math.perfect_round(65535*args.donation_percentage/100),
 544                             stale_info=(lambda (orphans, doas), total, (orphans_recorded_in_chain, doas_recorded_in_chain):
 545                                 253 if orphans > orphans_recorded_in_chain else
 546                                 254 if doas > doas_recorded_in_chain else
 547                                 0
 548                             )(*get_stale_counts()),
 549                         ),
 550                         block_target=current_work.value['bits'].target,
 551                         desired_timestamp=int(time.time() - current_work2.value['clock_offset']),
 552                         desired_target=desired_share_target,
 553                         net=net,
 554                     )
 555
 556                 target = net.PARENT.SANE_MAX_TARGET
 557                 if desired_pseudoshare_target is None:
 558                     if len(self.recent_shares_ts_work) == 50:
 559                         hash_rate = sum(work for ts, work in self.recent_shares_ts_work[1:])//(self.recent_shares_ts_work[-1][0] - self.recent_shares_ts_work[0][0])
 560                         target = min(target, 2**256//hash_rate)
 561                 else:
 562                     target = min(target, desired_pseudoshare_target)
 563                 target = max(target, share_info['bits'].target)
 564                 for aux_work in current_work.value['mm_chains'].itervalues():
 565                     target = max(target, aux_work['target'])
 566
 567                 transactions = [generate_tx] + list(current_work2.value['transactions'])
 568                 packed_generate_tx = bitcoin_data.tx_type.pack(generate_tx)
 569                 merkle_root = bitcoin_data.check_merkle_link(bitcoin_data.hash256(packed_generate_tx), current_work2.value['merkle_link'])
 570
 571                 getwork_time = time.time()
 572                 merkle_link = current_work2.value['merkle_link']
 573
 574                 print 'New work for worker! Difficulty: %.06f Share difficulty: %.06f Total block value: %.6f %s including %i transactions' % (
 575                     bitcoin_data.target_to_difficulty(target),
 576                     bitcoin_data.target_to_difficulty(share_info['bits'].target),
 577                     current_work2.value['subsidy']*1e-8, net.PARENT.SYMBOL,
 578                     len(current_work2.value['transactions']),
 579                 )
 580
 581                 ba = bitcoin_getwork.BlockAttempt(
 582                     version=current_work.value['version'],
 583                     previous_block=current_work.value['previous_block'],
 584                     merkle_root=merkle_root,
 585                     timestamp=current_work2.value['time'],
 586                     bits=current_work.value['bits'],
 587                     share_target=target,
 588                 )
 589
 590                 received_header_hashes = set()
 591
 592                 def got_response(header, request):
 593                     assert header['merkle_root'] == merkle_root
 594
 595                     header_hash = bitcoin_data.hash256(bitcoin_data.block_header_type.pack(header))
 596                     pow_hash = net.PARENT.POW_FUNC(bitcoin_data.block_header_type.pack(header))
 597                     on_time = current_work.value['best_share_hash'] == share_info['share_data']['previous_share_hash']
 598
 599                     try:
 600                         if pow_hash <= header['bits'].target or p2pool.DEBUG:
 601                             submit_block(dict(header=header, txs=transactions), ignore_failure=False)
 602                             if pow_hash <= header['bits'].target:
 603                                 print
 604                                 print 'GOT BLOCK FROM MINER! Passing to bitcoind! %s%064x' % (net.PARENT.BLOCK_EXPLORER_URL_PREFIX, header_hash)
 605                                 print
 606                                 recent_blocks.append(dict(ts=time.time(), hash='%064x' % (header_hash,)))
 607                     except:
 608                         log.err(None, 'Error while processing potential block:')
 609
 610                     for aux_work, index, hashes in mm_later:
 611                         try:
 612                             if pow_hash <= aux_work['target'] or p2pool.DEBUG:
 613                                 df = deferral.retry('Error submitting merged block: (will retry)', 10, 10)(aux_work['merged_proxy'].rpc_getauxblock)(
 614                                     pack.IntType(256, 'big').pack(aux_work['hash']).encode('hex'),
 615                                     bitcoin_data.aux_pow_type.pack(dict(
 616                                         merkle_tx=dict(
 617                                             tx=transactions[0],
 618                                             block_hash=header_hash,
 619                                             merkle_link=merkle_link,
 620                                         ),
 621                                         merkle_link=bitcoin_data.calculate_merkle_link(hashes, index),
 622                                         parent_block_header=header,
 623                                     )).encode('hex'),
 624                                 )
 625                                 @df.addCallback
 626                                 def _(result):
 627                                     if result != (pow_hash <= aux_work['target']):
 628                                         print >>sys.stderr, 'Merged block submittal result: %s Expected: %s' % (result, pow_hash <= aux_work['target'])
 629                                     else:
 630                                         print 'Merged block submittal result: %s' % (result,)
 631                                 @df.addErrback
 632                                 def _(err):
 633                                     log.err(err, 'Error submitting merged block:')
 634                         except:
 635                             log.err(None, 'Error while processing merged mining POW:')
 636
 637                     if pow_hash <= share_info['bits'].target:
 638                         min_header = dict(header);del min_header['merkle_root']
 639                         hash_link = p2pool_data.prefix_to_hash_link(packed_generate_tx[:-32-4], p2pool_data.Share.gentx_before_refhash)
 640                         if new:
 641                             share = p2pool_data.NewShare(net, None, dict(
 642                                 min_header=min_header, share_info=share_info, hash_link=hash_link,
 643                                 ref_merkle_link=dict(branch=[], index=0),
 644                             ), merkle_link=merkle_link, other_txs=transactions[1:] if pow_hash <= header['bits'].target else None)
 645                         else:
 646                             share = p2pool_data.Share(net, None, min_header, share_info, hash_link=hash_link, merkle_link=merkle_link, other_txs=transactions[1:] if pow_hash <= header['bits'].target else None)
 647
 648                         print 'GOT SHARE! %s %s prev %s age %.2fs%s' % (
 649                             request.getUser(),
 650                             p2pool_data.format_hash(share.hash),
 651                             p2pool_data.format_hash(share.previous_hash),
 652                             time.time() - getwork_time,
 653                             ' DEAD ON ARRIVAL' if not on_time else '',
 654                         )
 655                         my_share_hashes.add(share.hash)
 656                         if not on_time:
 657                             my_doa_share_hashes.add(share.hash)
 658
 659                         tracker.add(share)
 660                         if not p2pool.DEBUG:
 661                             tracker.verified.add(share)
 662                         set_real_work2()
 663
 664                         try:
 665                             if pow_hash <= header['bits'].target or p2pool.DEBUG:
 666                                 for peer in p2p_node.peers.itervalues():
 667                                     peer.sendShares([share])
 668                                 shared_share_hashes.add(share.hash)
 669                         except:
 670                             log.err(None, 'Error forwarding block solution:')
 671
 672                     if pow_hash > target:
 673                         print 'Worker %s submitted share with hash > target:' % (request.getUser(),)
 674                         print '    Hash:   %56x' % (pow_hash,)
 675                         print '    Target: %56x' % (target,)
 676                     elif header_hash in received_header_hashes:
 677                         print >>sys.stderr, 'Worker %s @ %s submitted share more than once!' % (request.getUser(), request.getClientIP())
 678                     else:
 679                         received_header_hashes.add(header_hash)
 680
 681                         pseudoshare_received.happened(bitcoin_data.target_to_average_attempts(target), not on_time, request.getUser() if request.getPassword() == vip_pass else None)
 682                         self.recent_shares_ts_work.append((time.time(), bitcoin_data.target_to_average_attempts(target)))
 683                         while len(self.recent_shares_ts_work) > 50:
 684                             self.recent_shares_ts_work.pop(0)
 685                         local_rate_monitor.add_datum(dict(work=bitcoin_data.target_to_average_attempts(target), dead=not on_time, user=request.getUser()))
 686
 687                     return on_time
 688
 689                 return ba, got_response
 690
 691         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)
 692
 693         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)
 694         worker_interface.WorkerInterface(WorkerBridge()).attach_to(web_root)
 695
 696         deferral.retry('Error binding to worker port:', traceback=False)(reactor.listenTCP)(worker_endpoint[1], server.Site(web_root), interface=worker_endpoint[0])
 697
 698         with open(os.path.join(os.path.join(datadir_path, 'ready_flag')), 'wb') as f:
 699             pass
 700
 701         print '    ...success!'
 702         print
 703
 704
 705         @defer.inlineCallbacks
 706         def work_poller():
 707             while True:
 708                 flag = factory.new_block.get_deferred()
 709                 try:
 710                     yield set_real_work1()
 711                 except:
 712                     log.err()
 713                 yield defer.DeferredList([flag, deferral.sleep(15)], fireOnOneCallback=True)
 714         work_poller()
 715
 716
 717         # done!
 718         print 'Started successfully!'
 719         print 'Go to http://127.0.0.1:%i/static to view graphs and statistics.' % (worker_endpoint[1],)
 720         print
 721
 722
 723         if hasattr(signal, 'SIGALRM'):
 724             signal.signal(signal.SIGALRM, lambda signum, frame: reactor.callFromThread(
 725                 sys.stderr.write, 'Watchdog timer went off at:\n' + ''.join(traceback.format_stack())
 726             ))
 727             signal.siginterrupt(signal.SIGALRM, False)
 728             task.LoopingCall(signal.alarm, 30).start(1)
 729
 730         if args.irc_announce:
 731             from twisted.words.protocols import irc
 732             class IRCClient(irc.IRCClient):
 733                 nickname = 'p2pool%02i' % (random.randrange(100),)
 734                 channel = net.ANNOUNCE_CHANNEL
 735                 def lineReceived(self, line):
 736                     print repr(line)
 737                     irc.IRCClient.lineReceived(self, line)
 738                 def signedOn(self):
 739                     irc.IRCClient.signedOn(self)
 740                     self.factory.resetDelay()
 741                     self.join(self.channel)
 742                     @defer.inlineCallbacks
 743                     def new_share(share):
 744                         if share.pow_hash <= share.header['bits'].target and abs(share.timestamp - time.time()) < 10*60:
 745                             yield deferral.sleep(random.expovariate(1/60))
 746                             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)
 747                             if message not in self.recent_messages:
 748                                 self.say(self.channel, message)
 749                                 self._remember_message(message)
 750                     self.watch_id = tracker.verified.added.watch(new_share)
 751                     self.recent_messages = []
 752                 def _remember_message(self, message):
 753                     self.recent_messages.append(message)
 754                     while len(self.recent_message) > 100:
 755                         self.recent_messages.pop(0)
 756                 def privmsg(self, user, channel, message):
 757                     if channel == self.channel:
 758                         self._remember_message(message)
 759                 def connectionLost(self, reason):
 760                     tracker.verified.added.unwatch(self.watch_id)
 761                     print 'IRC connection lost:', reason.getErrorMessage()
 762             class IRCClientFactory(protocol.ReconnectingClientFactory):
 763                 protocol = IRCClient
 764             reactor.connectTCP("irc.freenode.net", 6667, IRCClientFactory())
 765
 766         @defer.inlineCallbacks
 767         def status_thread():
 768             last_str = None
 769             last_time = 0
 770             while True:
 771                 yield deferral.sleep(3)
 772                 try:
 773                     if time.time() > current_work2.value['last_update'] + 60:
 774                         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']),)
 775
 776                     height = tracker.get_height(current_work.value['best_share_hash'])
 777                     this_str = 'P2Pool: %i shares in chain (%i verified/%i total) Peers: %i (%i incoming)' % (
 778                         height,
 779                         len(tracker.verified.shares),
 780                         len(tracker.shares),
 781                         len(p2p_node.peers),
 782                         sum(1 for peer in p2p_node.peers.itervalues() if peer.incoming),
 783                     ) + (' FDs: %i R/%i W' % (len(reactor.getReaders()), len(reactor.getWriters())) if p2pool.DEBUG else '')
 784
 785                     datums, dt = local_rate_monitor.get_datums_in_last()
 786                     my_att_s = sum(datum['work']/dt for datum in datums)
 787                     this_str += '\n Local: %sH/s in last %s Local dead on arrival: %s Expected time to share: %s' % (
 788                         math.format(int(my_att_s)),
 789                         math.format_dt(dt),
 790                         math.format_binomial_conf(sum(1 for datum in datums if datum['dead']), len(datums), 0.95),
 791                         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 '???',
 792                     )
 793
 794                     if height > 2:
 795                         (stale_orphan_shares, stale_doa_shares), shares, _ = get_stale_counts()
 796                         stale_prop = p2pool_data.get_average_stale_prop(tracker, current_work.value['best_share_hash'], min(720, height))
 797                         real_att_s = p2pool_data.get_pool_attempts_per_second(tracker, current_work.value['best_share_hash'], min(height - 1, 720)) / (1 - stale_prop)
 798
 799                         this_str += '\n Shares: %i (%i orphan, %i dead) Stale rate: %s Efficiency: %s Current payout: %.4f %s' % (
 800                             shares, stale_orphan_shares, stale_doa_shares,
 801                             math.format_binomial_conf(stale_orphan_shares + stale_doa_shares, shares, 0.95),
 802                             math.format_binomial_conf(stale_orphan_shares + stale_doa_shares, shares, 0.95, lambda x: (1 - x)/(1 - stale_prop)),
 803                             get_current_txouts().get(bitcoin_data.pubkey_hash_to_script2(my_pubkey_hash), 0)*1e-8, net.PARENT.SYMBOL,
 804                         )
 805                         this_str += '\n Pool: %sH/s Stale rate: %.1f%% Expected time to block: %s' % (
 806                             math.format(int(real_att_s)),
 807                             100*stale_prop,
 808                             math.format_dt(2**256 / current_work.value['bits'].target / real_att_s),
 809                         )
 810
 811                         desired_version_counts = p2pool_data.get_desired_version_counts(tracker, current_work.value['best_share_hash'], min(720, height))
 812                         majority_desired_version = max(desired_version_counts, key=lambda k: desired_version_counts[k])
 813                         if majority_desired_version not in [0, 1]:
 814                             print >>sys.stderr, '#'*40
 815                             print >>sys.stderr, '>>> WARNING: A MAJORITY OF SHARES CONTAIN A VOTE FOR AN UNSUPPORTED SHARE IMPLEMENTATION! (v%i with %i%% support)' % (
 816                                 majority_desired_version, 100*desired_version_counts[majority_desired_version]/sum(desired_version_counts.itervalues()))
 817                             print >>sys.stderr, '>>> An upgrade is likely necessary. Check http://p2pool.forre.st/ for more information.'
 818                             print >>sys.stderr, '#'*40
 819
 820                     if this_str != last_str or time.time() > last_time + 15:
 821                         print this_str
 822                         last_str = this_str
 823                         last_time = time.time()
 824                 except:
 825                     log.err()
 826         status_thread()
 827     except:
 828         reactor.stop()
 829         log.err(None, 'Fatal error:')
 830
 831 def run():
 832     class FixedArgumentParser(argparse.ArgumentParser):
 833         def _read_args_from_files(self, arg_strings):
 834             # expand arguments referencing files
 835             new_arg_strings = []
 836             for arg_string in arg_strings:
 837
 838                 # for regular arguments, just add them back into the list
 839                 if not arg_string or arg_string[0] not in self.fromfile_prefix_chars:
 840                     new_arg_strings.append(arg_string)
 841
 842                 # replace arguments referencing files with the file content
 843                 else:
 844                     try:
 845                         args_file = open(arg_string[1:])
 846                         try:
 847                             arg_strings = []
 848                             for arg_line in args_file.read().splitlines():
 849                                 for arg in self.convert_arg_line_to_args(arg_line):
 850                                     arg_strings.append(arg)
 851                             arg_strings = self._read_args_from_files(arg_strings)
 852                             new_arg_strings.extend(arg_strings)
 853                         finally:
 854                             args_file.close()
 855                     except IOError:
 856                         err = sys.exc_info()[1]
 857                         self.error(str(err))
 858
 859             # return the modified argument list
 860             return new_arg_strings
 861
 862         def convert_arg_line_to_args(self, arg_line):
 863             return [arg for arg in arg_line.split() if arg.strip()]
 864
 865
 866     realnets=dict((name, net) for name, net in networks.nets.iteritems() if '_testnet' not in name)
 867
 868     parser = FixedArgumentParser(description='p2pool (version %s)' % (p2pool.__version__,), fromfile_prefix_chars='@')
 869     parser.add_argument('--version', action='version', version=p2pool.__version__)
 870     parser.add_argument('--net',
 871         help='use specified network (default: bitcoin)',
 872         action='store', choices=sorted(realnets), default='bitcoin', dest='net_name')
 873     parser.add_argument('--testnet',
 874         help='''use the network's testnet''',
 875         action='store_const', const=True, default=False, dest='testnet')
 876     parser.add_argument('--debug',
 877         help='enable debugging mode',
 878         action='store_const', const=True, default=False, dest='debug')
 879     parser.add_argument('-a', '--address',
 880         help='generate payouts to this address (default: <address requested from bitcoind>)',
 881         type=str, action='store', default=None, dest='address')
 882     parser.add_argument('--datadir',
 883         help='store data in this directory (default: <directory run_p2pool.py is in>/data)',
 884         type=str, action='store', default=None, dest='datadir')
 885     parser.add_argument('--logfile',
 886         help='''log to this file (default: data/<NET>/log)''',
 887         type=str, action='store', default=None, dest='logfile')
 888     parser.add_argument('--merged',
 889         help='call getauxblock on this url to get work for merged mining (example: http://ncuser:ncpass@127.0.0.1:10332/)',
 890         type=str, action='append', default=[], dest='merged_urls')
 891     parser.add_argument('--give-author', metavar='DONATION_PERCENTAGE',
 892         help='donate this percentage of work to author of p2pool (default: 0.5)',
 893         type=float, action='store', default=0.5, dest='donation_percentage')
 894     parser.add_argument('--irc-announce',
 895         help='announce any blocks found on irc://irc.freenode.net/#p2pool',
 896         action='store_true', default=False, dest='irc_announce')
 897
 898     p2pool_group = parser.add_argument_group('p2pool interface')
 899     p2pool_group.add_argument('--p2pool-port', metavar='PORT',
 900         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())),
 901         type=int, action='store', default=None, dest='p2pool_port')
 902     p2pool_group.add_argument('-n', '--p2pool-node', metavar='ADDR[:PORT]',
 903         help='connect to existing p2pool node at ADDR listening on port PORT (defaults to default p2pool P2P port) in addition to builtin addresses',
 904         type=str, action='append', default=[], dest='p2pool_nodes')
 905     parser.add_argument('--disable-upnp',
 906         help='''don't attempt to use UPnP to forward p2pool's P2P port from the Internet to this computer''',
 907         action='store_false', default=True, dest='upnp')
 908     p2pool_group.add_argument('--max-conns', metavar='CONNS',
 909         help='maximum incoming connections (default: 40)',
 910         type=int, action='store', default=40, dest='p2pool_conns')
 911
 912     worker_group = parser.add_argument_group('worker interface')
 913     worker_group.add_argument('-w', '--worker-port', metavar='PORT or ADDR:PORT',
 914         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())),
 915         type=str, action='store', default=None, dest='worker_endpoint')
 916     worker_group.add_argument('-f', '--fee', metavar='FEE_PERCENTAGE',
 917         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)''',
 918         type=float, action='store', default=0, dest='worker_fee')
 919
 920     bitcoind_group = parser.add_argument_group('bitcoind interface')
 921     bitcoind_group.add_argument('--bitcoind-address', metavar='BITCOIND_ADDRESS',
 922         help='connect to this address (default: 127.0.0.1)',
 923         type=str, action='store', default='127.0.0.1', dest='bitcoind_address')
 924     bitcoind_group.add_argument('--bitcoind-rpc-port', metavar='BITCOIND_RPC_PORT',
 925         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())),
 926         type=int, action='store', default=None, dest='bitcoind_rpc_port')
 927     bitcoind_group.add_argument('--bitcoind-p2p-port', metavar='BITCOIND_P2P_PORT',
 928         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())),
 929         type=int, action='store', default=None, dest='bitcoind_p2p_port')
 930
 931     bitcoind_group.add_argument(metavar='BITCOIND_RPCUSERPASS',
 932         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)',
 933         type=str, action='store', default=[], nargs='*', dest='bitcoind_rpc_userpass')
 934
 935     args = parser.parse_args()
 936
 937     if args.debug:
 938         p2pool.DEBUG = True
 939
 940     net_name = args.net_name + ('_testnet' if args.testnet else '')
 941     net = networks.nets[net_name]
 942
 943     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)
 944     if not os.path.exists(datadir_path):
 945         os.makedirs(datadir_path)
 946
 947     if len(args.bitcoind_rpc_userpass) > 2:
 948         parser.error('a maximum of two arguments are allowed')
 949     args.bitcoind_rpc_username, args.bitcoind_rpc_password = ([None, None] + args.bitcoind_rpc_userpass)[-2:]
 950
 951     if args.bitcoind_rpc_password is None:
 952         if not hasattr(net.PARENT, 'CONF_FILE_FUNC'):
 953             parser.error('This network has no configuration file function. Manually enter your RPC password.')
 954         conf_path = net.PARENT.CONF_FILE_FUNC()
 955         if not os.path.exists(conf_path):
 956             parser.error('''Bitcoin configuration file not found. Manually enter your RPC password.\r\n'''
 957                 '''If you actually haven't created a configuration file, you should create one at %s with the text:\r\n'''
 958                 '''\r\n'''
 959                 '''server=1\r\n'''
 960                 '''rpcpassword=%x''' % (conf_path, random.randrange(2**128)))
 961         with open(conf_path, 'rb') as f:
 962             cp = ConfigParser.RawConfigParser()
 963             cp.readfp(StringIO.StringIO('[x]\r\n' + f.read()))
 964             for conf_name, var_name, var_type in [
 965                 ('rpcuser', 'bitcoind_rpc_username', str),
 966                 ('rpcpassword', 'bitcoind_rpc_password', str),
 967                 ('rpcport', 'bitcoind_rpc_port', int),
 968                 ('port', 'bitcoind_p2p_port', int),
 969             ]:
 970                 if getattr(args, var_name) is None and cp.has_option('x', conf_name):
 971                     setattr(args, var_name, var_type(cp.get('x', conf_name)))
 972         if args.bitcoind_rpc_password is None:
 973             parser.error('''Bitcoin configuration file didn't contain an rpcpassword= line! Add one!''')
 974
 975     if args.bitcoind_rpc_username is None:
 976         args.bitcoind_rpc_username = ''
 977
 978     if args.bitcoind_rpc_port is None:
 979         args.bitcoind_rpc_port = net.PARENT.RPC_PORT
 980
 981     if args.bitcoind_p2p_port is None:
 982         args.bitcoind_p2p_port = net.PARENT.P2P_PORT
 983
 984     if args.p2pool_port is None:
 985         args.p2pool_port = net.P2P_PORT
 986
 987     if args.worker_endpoint is None:
 988         worker_endpoint = '', net.WORKER_PORT
 989     elif ':' not in args.worker_endpoint:
 990         worker_endpoint = '', int(args.worker_endpoint)
 991     else:
 992         addr, port = args.worker_endpoint.rsplit(':', 1)
 993         worker_endpoint = addr, int(port)
 994
 995     if args.address is not None:
 996         try:
 997             args.pubkey_hash = bitcoin_data.address_to_pubkey_hash(args.address, net.PARENT)
 998         except Exception, e:
 999             parser.error('error parsing address: ' + repr(e))
1000     else:
1001         args.pubkey_hash = None
1002
1003     def separate_url(url):
1004         s = urlparse.urlsplit(url)
1005         if '@' not in s.netloc:
1006             parser.error('merged url netloc must contain an "@"')
1007         userpass, new_netloc = s.netloc.rsplit('@', 1)
1008         return urlparse.urlunsplit(s._replace(netloc=new_netloc)), userpass
1009     merged_urls = map(separate_url, args.merged_urls)
1010
1011     if args.logfile is None:
1012         args.logfile = os.path.join(datadir_path, 'log')
1013
1014     logfile = logging.LogFile(args.logfile)
1015     pipe = logging.TimestampingPipe(logging.TeePipe([logging.EncodeReplacerPipe(sys.stderr), logfile]))
1016     sys.stdout = logging.AbortPipe(pipe)
1017     sys.stderr = log.DefaultObserver.stderr = logging.AbortPipe(logging.PrefixPipe(pipe, '> '))
1018     if hasattr(signal, "SIGUSR1"):
1019         def sigusr1(signum, frame):
1020             print 'Caught SIGUSR1, closing %r...' % (args.logfile,)
1021             logfile.reopen()
1022             print '...and reopened %r after catching SIGUSR1.' % (args.logfile,)
1023         signal.signal(signal.SIGUSR1, sigusr1)
1024     task.LoopingCall(logfile.reopen).start(5)
1025
1026     reactor.callWhenRunning(main, args, net, datadir_path, merged_urls, worker_endpoint)
1027     reactor.run()