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- from __future__ import division
- import base64
- import random
- import sys
- import time
- from twisted.internet import defer
- from twisted.python import log
- import bitcoin.getwork as bitcoin_getwork, bitcoin.data as bitcoin_data
- from bitcoin import script, worker_interface
- from util import jsonrpc, variable, deferral, math, pack
- import p2pool, p2pool.data as p2pool_data
- import MySQLdb
- class WorkerBridge(worker_interface.WorkerBridge):
- def __init__(self, my_pubkey_hash, net, donation_percentage, bitcoind_work, best_block_header, merged_urls, best_share_var, tracker, my_share_hashes, my_doa_share_hashes, worker_fee, p2p_node, submit_block, set_best_share, broadcast_share, block_height_var):
- worker_interface.WorkerBridge.__init__(self)
- self.recent_shares_ts_work = []
- self.my_pubkey_hash = my_pubkey_hash
- self.net = net
- self.donation_percentage = donation_percentage
- self.bitcoind_work = bitcoind_work
- self.best_block_header = best_block_header
- self.best_share_var = best_share_var
- self.tracker = tracker
- self.my_share_hashes = my_share_hashes
- self.my_doa_share_hashes = my_doa_share_hashes
- self.worker_fee = worker_fee
- self.p2p_node = p2p_node
- self.submit_block = submit_block
- self.set_best_share = set_best_share
- self.broadcast_share = broadcast_share
- self.block_height_var = block_height_var
- def _(share):
- if share.hash in self.my_share_hashes and tracker.is_child_of(share.hash, self.best_share_var.value):
- assert share.share_data['stale_info'] in [None, 'orphan', 'doa'] # we made these shares in this instance
- self.removed_unstales_var.set((
- self.removed_unstales_var.value[0] + 1,
- self.removed_unstales_var.value[1] + (1 if share.share_data['stale_info'] == 'orphan' else 0),
- self.removed_unstales_var.value[2] + (1 if share.share_data['stale_info'] == 'doa' else 0),
- ))
- if share.hash in self.my_doa_share_hashes and self.tracker.is_child_of(share.hash, self.best_share_var.value):
- self.removed_doa_unstales_var.set(self.removed_doa_unstales_var.value + 1)
- # MERGED WORK
- self.merged_work = variable.Variable({})
- @defer.inlineCallbacks
- def set_merged_work(merged_url, merged_userpass):
- merged_proxy = jsonrpc.Proxy(merged_url, dict(Authorization='Basic ' + base64.b64encode(merged_userpass)))
- while True:
- auxblock = yield deferral.retry('Error while calling merged getauxblock:', 30)(merged_proxy.rpc_getauxblock)()
- self.merged_work.set(dict(self.merged_work.value, **{auxblock['chainid']: dict(
- hash=int(auxblock['hash'], 16),
- target='p2pool' if auxblock['target'] == 'p2pool' else pack.IntType(256).unpack(auxblock['target'].decode('hex')),
- merged_proxy=merged_proxy,
- )}))
- yield deferral.sleep(1)
- for merged_url, merged_userpass in merged_urls:
- set_merged_work(merged_url, merged_userpass)
- @self.merged_work.changed.watch
- def _(new_merged_work):
- print 'Got new merged mining work!'
- # COMBINE WORK
- self.current_work = variable.Variable(None)
- def compute_work():
- t = self.bitcoind_work.value
- bb = self.best_block_header.value
- if bb is not None and bb['previous_block'] == t['previous_block'] and net.PARENT.POW_FUNC(bitcoin_data.block_header_type.pack(bb)) <= t['bits'].target:
- print 'Skipping from block %x to block %x!' % (bb['previous_block'],
- bitcoin_data.hash256(bitcoin_data.block_header_type.pack(bb)))
- t = dict(
- version=bb['version'],
- previous_block=bitcoin_data.hash256(bitcoin_data.block_header_type.pack(bb)),
- bits=bb['bits'], # not always true
- coinbaseflags='',
- height=t['height'] + 1,
- time=bb['timestamp'] + 600, # better way?
- transactions=[],
- merkle_link=bitcoin_data.calculate_merkle_link([None], 0),
- subsidy=net.PARENT.SUBSIDY_FUNC(self.block_height_var.value),
- last_update=self.bitcoind_work.value['last_update'],
- )
- self.current_work.set(t)
- self.bitcoind_work.changed.watch(lambda _: compute_work())
- self.best_block_header.changed.watch(lambda _: compute_work())
- compute_work()
- self.new_work_event = variable.Event()
- @self.current_work.transitioned.watch
- def _(before, after):
- # trigger LP if version/previous_block/bits changed or transactions changed from nothing
- if any(before[x] != after[x] for x in ['version', 'previous_block', 'bits']) or (not before['transactions'] and after['transactions']):
- self.new_work_event.happened()
- self.merged_work.changed.watch(lambda _: self.new_work_event.happened())
- self.best_share_var.changed.watch(lambda _: self.new_work_event.happened())
- def get_stale_counts(self):
- '''Returns (orphans, doas), total, (orphans_recorded_in_chain, doas_recorded_in_chain)'''
- my_shares = len(self.my_share_hashes)
- my_doa_shares = len(self.my_doa_share_hashes)
- delta = self.tracker.verified.get_delta_to_last(self.best_share_var.value)
- my_shares_in_chain = delta.my_count + self.removed_unstales_var.value[0]
- my_doa_shares_in_chain = delta.my_doa_count + self.removed_doa_unstales_var.value
- orphans_recorded_in_chain = delta.my_orphan_announce_count + self.removed_unstales_var.value[1]
- doas_recorded_in_chain = delta.my_dead_announce_count + self.removed_unstales_var.value[2]
- my_shares_not_in_chain = my_shares - my_shares_in_chain
- my_doa_shares_not_in_chain = my_doa_shares - my_doa_shares_in_chain
- 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)
- def get_user_details(self, request):
- user = request.getUser() if request.getUser() is not None else ''
- desired_pseudoshare_target = None
- if '+' in user:
- user, desired_pseudoshare_difficulty_str = user.rsplit('+', 1)
- try:
- desired_pseudoshare_target = bitcoin_data.difficulty_to_target(float(desired_pseudoshare_difficulty_str))
- except:
- pass
- desired_share_target = 2**256 - 1
- if '/' in user:
- user, min_diff_str = user.rsplit('/', 1)
- try:
- desired_share_target = bitcoin_data.difficulty_to_target(float(min_diff_str))
- except:
- pass
- if random.uniform(0, 100) < self.worker_fee:
- pubkey_hash = self.my_pubkey_hash
- else:
- try:
- pubkey_hash = bitcoin_data.address_to_pubkey_hash(user, self.net.PARENT)
- except: # XXX blah
- pubkey_hash = self.my_pubkey_hash
- return user, pubkey_hash, desired_share_target, desired_pseudoshare_target
- def preprocess_request(self, request):
- user, pubkey_hash, desired_share_target, desired_pseudoshare_target = self.get_user_details(request)
- return pubkey_hash, desired_share_target, desired_pseudoshare_target
- def get_work(self, pubkey_hash, desired_share_target, desired_pseudoshare_target):
- if len(self.p2p_node.peers) == 0 and self.net.PERSIST:
- raise jsonrpc.Error_for_code(-12345)(u'p2pool is not connected to any peers')
- if self.best_share_var.value is None and self.net.PERSIST:
- raise jsonrpc.Error_for_code(-12345)(u'p2pool is downloading shares')
- if time.time() > self.current_work.value['last_update'] + 60:
- raise jsonrpc.Error_for_code(-12345)(u'lost contact with bitcoind')
- if self.merged_work.value:
- tree, size = bitcoin_data.make_auxpow_tree(self.merged_work.value)
- mm_hashes = [self.merged_work.value.get(tree.get(i), dict(hash=0))['hash'] for i in xrange(size)]
- mm_data = '\xfa\xbemm' + bitcoin_data.aux_pow_coinbase_type.pack(dict(
- merkle_root=bitcoin_data.merkle_hash(mm_hashes),
- size=size,
- nonce=0,
- ))
- mm_later = [(aux_work, mm_hashes.index(aux_work['hash']), mm_hashes) for chain_id, aux_work in self.merged_work.value.iteritems()]
- else:
- mm_data = ''
- mm_later = []
- tx_hashes = [bitcoin_data.hash256(bitcoin_data.tx_type.pack(tx)) for tx in self.current_work.value['transactions']]
- tx_map = dict(zip(tx_hashes, self.current_work.value['transactions']))
- if True:
- share_info, gentx, other_transaction_hashes, get_share = p2pool_data.Share.generate_transaction(
- tracker=self.tracker,
- share_data=dict(
- previous_share_hash=self.best_share_var.value,
- coinbase=(script.create_push_script([
- self.current_work.value['height'],
- ] + ([mm_data] if mm_data else []) + [
- ]) + self.current_work.value['coinbaseflags'])[:100],
- nonce=random.randrange(2**32),
- pubkey_hash=pubkey_hash,
- subsidy=self.current_work.value['subsidy'],
- donation=math.perfect_round(65535*self.donation_percentage/100),
- stale_info=(lambda (orphans, doas), total, (orphans_recorded_in_chain, doas_recorded_in_chain):
- 'orphan' if orphans > orphans_recorded_in_chain else
- 'doa' if doas > doas_recorded_in_chain else
- None
- )(*self.get_stale_counts()),
- desired_version=5,
- ),
- block_target=self.current_work.value['bits'].target,
- desired_timestamp=int(time.time() + 0.5),
- desired_target=desired_share_target,
- ref_merkle_link=dict(branch=[], index=0),
- desired_other_transaction_hashes=tx_hashes,
- net=self.net,
- )
- transactions = [gentx] + [tx_map[tx_hash] for tx_hash in other_transaction_hashes]
- mm_later = [(dict(aux_work, target=aux_work['target'] if aux_work['target'] != 'p2pool' else share_info['bits'].target), index, hashes) for aux_work, index, hashes in mm_later]
- if desired_pseudoshare_target is None:
- target = 2**256-1
- if len(self.recent_shares_ts_work) == 50:
- 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])
- if hash_rate:
- target = min(target, int(2**256/hash_rate))
- else:
- target = desired_pseudoshare_target
- target = max(target, share_info['bits'].target)
- for aux_work, index, hashes in mm_later:
- target = max(target, aux_work['target'])
- target = math.clip(target, self.net.PARENT.SANE_TARGET_RANGE)
- getwork_time = time.time()
- lp_count = self.new_work_event.times
- merkle_link = bitcoin_data.calculate_merkle_link([bitcoin_data.hash256(bitcoin_data.tx_type.pack(tx)) for tx in transactions], 0)
- print 'New work for worker! Difficulty: %.06f Share difficulty: %.06f Total block value: %.6f %s including %i transactions' % (
- bitcoin_data.target_to_difficulty(target),
- bitcoin_data.target_to_difficulty(share_info['bits'].target),
- self.current_work.value['subsidy']*1e-8, self.net.PARENT.SYMBOL,
- len(self.current_work.value['transactions']),
- )
- ba = bitcoin_getwork.BlockAttempt(
- version=min(self.current_work.value['version'], 2),
- previous_block=self.current_work.value['previous_block'],
- merkle_root=bitcoin_data.check_merkle_link(bitcoin_data.hash256(bitcoin_data.tx_type.pack(transactions[0])), merkle_link),
- timestamp=self.current_work.value['time'],
- bits=self.current_work.value['bits'],
- share_target=target,
- )
- received_header_hashes = set()
- def got_response(header, request):
- header_hash = bitcoin_data.hash256(bitcoin_data.block_header_type.pack(header))
- pow_hash = self.net.PARENT.POW_FUNC(bitcoin_data.block_header_type.pack(header))
- try:
- if pow_hash <= header['bits'].target or p2pool.DEBUG:
- self.submit_block(dict(header=header, txs=transactions), ignore_failure=False)
- if pow_hash <= header['bits'].target:
- print
- print 'GOT BLOCK FROM MINER! Passing to bitcoind! %s%064x' % (self.net.PARENT.BLOCK_EXPLORER_URL_PREFIX, header_hash)
- print
- except:
- log.err(None, 'Error while processing potential block:')
- user, _, _, _ = self.get_user_details(request)
- assert header['previous_block'] == ba.previous_block
- assert header['merkle_root'] == ba.merkle_root
- assert header['bits'] == ba.bits
- on_time = self.new_work_event.times == lp_count
- for aux_work, index, hashes in mm_later:
- try:
- if pow_hash <= aux_work['target'] or p2pool.DEBUG:
- df = deferral.retry('Error submitting merged block: (will retry)', 10, 10)(aux_work['merged_proxy'].rpc_getauxblock)(
- pack.IntType(256, 'big').pack(aux_work['hash']).encode('hex'),
- bitcoin_data.aux_pow_type.pack(dict(
- merkle_tx=dict(
- tx=transactions[0],
- block_hash=header_hash,
- merkle_link=merkle_link,
- ),
- merkle_link=bitcoin_data.calculate_merkle_link(hashes, index),
- parent_block_header=header,
- )).encode('hex'),
- )
- @df.addCallback
- def _(result, aux_work=aux_work):
- if result != (pow_hash <= aux_work['target']):
- print >>sys.stderr, 'Merged block submittal result: %s Expected: %s' % (result, pow_hash <= aux_work['target'])
- else:
- print 'Merged block submittal result: %s' % (result,)
- @df.addErrback
- def _(err):
- log.err(err, 'Error submitting merged block:')
- except:
- log.err(None, 'Error while processing merged mining POW:')
- if pow_hash <= share_info['bits'].target and header_hash not in received_header_hashes:
- share = get_share(header, transactions)
- print 'GOT SHARE! %s %s prev %s age %.2fs%s' % (
- request.getUser(),
- p2pool_data.format_hash(share.hash),
- p2pool_data.format_hash(share.previous_hash),
- time.time() - getwork_time,
- ' DEAD ON ARRIVAL' if not on_time else '',
- )
- self.my_share_hashes.add(share.hash)
- if not on_time:
- self.my_doa_share_hashes.add(share.hash)
- self.tracker.add(share)
- if not p2pool.DEBUG:
- self.tracker.verified.add(share)
- self.set_best_share()
- try:
- if pow_hash <= header['bits'].target or p2pool.DEBUG:
- self.broadcast_share(share.hash)
- except:
- log.err(None, 'Error forwarding block solution:')
- self.share_received.happened(bitcoin_data.target_to_average_attempts(share.target), not on_time)
- if pow_hash > target:
- print 'Worker %s submitted share with hash > target:' % (request.getUser(),)
- print ' Hash: %56x' % (pow_hash,)
- print ' Target: %56x' % (target,)
- elif header_hash in received_header_hashes:
- print >>sys.stderr, 'Worker %s @ %s submitted share more than once!' % (request.getUser(), request.getClientIP())
- else:
- received_header_hashes.add(header_hash)
- try:
- dbf_user = request.getUser()
- dbuser_items = dbf_user.split('+')
- db_diff = bitcoin_data.target_to_difficulty(target) * 1000000000
- proxy_db = MySQLdb.connect(host="localhost",user="jason",passwd="p2pool2012",db="p2pmining")
- pdb_c = proxy_db.cursor()
- pdb_c.execute("""INSERT INTO lminer_data (id,address,hashrate,timestamp,difficulty,ontime) VALUES (NULL, %s , %s , UNIX_TIMESTAMP() , %s, %s)""", (dbuser_items[0], db_diff * on_time, db_diff , on_time ) )
- proxy_db.close()
- except:
- log.err(None, 'Error with database:')
- ###
- self.pseudoshare_received.happened(bitcoin_data.target_to_average_attempts(target), not on_time, user)
- self.recent_shares_ts_work.append((time.time(), bitcoin_data.target_to_average_attempts(target)))
- while len(self.recent_shares_ts_work) > 50:
- self.recent_shares_ts_work.pop(0)
- self.local_rate_monitor.add_datum(dict(work=bitcoin_data.target_to_average_attempts(target), dead=not on_time, user=user))
- return on_time
- return ba, got_response
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