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NVC/PPC protocol changes support
[p2pool.git] / p2pool / bitcoin / networks.py
diff --git a/p2pool/bitcoin/networks.py b/p2pool/bitcoin/networks.py
index 4ea6874..8831470 100644 (file)
--- a/p2pool/bitcoin/networks.py
+++ b/p2pool/bitcoin/networks.py
@@ -1,88 +1,70 @@
+import os
+import platform
+
 from twisted.internet import defer
 
 from . import data
+from p2pool.util import math, pack
+from operator import *
 
+def get_subsidy(nCap, nMaxSubsidy, bnTarget):
+    bnLowerBound = 0.01
+    bnUpperBound = bnSubsidyLimit = nMaxSubsidy
+    bnTargetLimit = 0x00000fffff000000000000000000000000000000000000000000000000000000
 
-class BitcoinMainnet(object):
-    BITCOIN_P2P_PREFIX = 'f9beb4d9'.decode('hex')
-    BITCOIN_P2P_PORT = 8333
-    BITCOIN_ADDRESS_VERSION = 0
-    BITCOIN_RPC_PORT = 8332
-    BITCOIN_RPC_CHECK = staticmethod(defer.inlineCallbacks(lambda bitcoind: defer.returnValue(
-        'name_firstupdate' not in (yield bitcoind.rpc_help()) and
-        'ixcoinaddress' not in (yield bitcoind.rpc_help()) and
-        not (yield bitcoind.rpc_getinfo())['testnet']
-    )))
-    BITCOIN_SUBSIDY_FUNC = staticmethod(lambda height: 50*100000000 >> (height + 1)//210000)
-    BITCOIN_POW_FUNC = data.block_header_type.hash256
-    BITCOIN_SYMBOL = 'BTC'
-
-class BitcoinTestnet(object):
-    BITCOIN_P2P_PREFIX = 'fabfb5da'.decode('hex')
-    BITCOIN_P2P_PORT = 18333
-    BITCOIN_ADDRESS_VERSION = 111
-    BITCOIN_RPC_PORT = 8332
-    BITCOIN_RPC_CHECK = staticmethod(defer.inlineCallbacks(lambda bitcoind: defer.returnValue(
-        'name_firstupdate' not in (yield bitcoind.rpc_help()) and
-        'ixcoinaddress' not in (yield bitcoind.rpc_help()) and
-        (yield bitcoind.rpc_getinfo())['testnet']
-    )))
-    BITCOIN_SUBSIDY_FUNC = staticmethod(lambda height: 50*100000000 >> (height + 1)//210000)
-    BITCOIN_POW_FUNC = data.block_header_type.hash256
-    BITCOIN_SYMBOL = 'tBTC'
-
-
-class NamecoinMainnet(object):
-    BITCOIN_P2P_PREFIX = 'f9beb4fe'.decode('hex')
-    BITCOIN_P2P_PORT = 8334
-    BITCOIN_ADDRESS_VERSION = 52
-    BITCOIN_RPC_PORT = 8332
-    BITCOIN_RPC_CHECK = staticmethod(defer.inlineCallbacks(lambda bitcoind: defer.returnValue(
-        'name_firstupdate' in (yield bitcoind.rpc_help()) and
-        'ixcoinaddress' not in (yield bitcoind.rpc_help()) and
-        not (yield bitcoind.rpc_getinfo())['testnet']
-    )))
-    BITCOIN_SUBSIDY_FUNC = staticmethod(lambda height: 50*100000000 >> (height + 1)//210000)
-    BITCOIN_POW_FUNC = data.block_header_type.hash256
-    BITCOIN_SYMBOL = 'NMC'
+    while bnLowerBound + 0.01 <= bnUpperBound:
+        bnMidValue = (bnLowerBound + bnUpperBound) / 2
+        if pow(bnMidValue, nCap) * bnTargetLimit > pow(bnSubsidyLimit, nCap) * bnTarget:
+            bnUpperBound = bnMidValue
+        else:
+            bnLowerBound = bnMidValue
 
-class NamecoinTestnet(object):
-    BITCOIN_P2P_PREFIX = 'fabfb5fe'.decode('hex')
-    BITCOIN_P2P_PORT = 18334
-    BITCOIN_ADDRESS_VERSION = 111
-    BITCOIN_RPC_PORT = 8332
-    BITCOIN_RPC_CHECK = staticmethod(defer.inlineCallbacks(lambda bitcoind: defer.returnValue(
-        'name_firstupdate' in (yield bitcoind.rpc_help()) and
-        'ixcoinaddress' not in (yield bitcoind.rpc_help()) and
-        (yield bitcoind.rpc_getinfo())['testnet']
-    )))
-    BITCOIN_SUBSIDY_FUNC = staticmethod(lambda height: 50*100000000 >> (height + 1)//210000)
-    BITCOIN_POW_FUNC = data.block_header_type.hash256
-    BITCOIN_SYMBOL = 'tNMC'
+    nSubsidy = round(bnMidValue, 2)
 
+    if nSubsidy > bnMidValue:
+        nSubsidy = nSubsidy - 0.01
 
-class LitecoinMainnet(object):
-    BITCOIN_P2P_PREFIX = 'fbc0b6db'.decode('hex')
-    BITCOIN_P2P_PORT = 9333
-    BITCOIN_ADDRESS_VERSION = 48
-    BITCOIN_RPC_PORT = 9332
-    BITCOIN_RPC_CHECK = staticmethod(defer.inlineCallbacks(lambda bitcoind: defer.returnValue(
-        'litecoinaddress' in (yield bitcoind.rpc_help()) and
-        not (yield bitcoind.rpc_getinfo())['testnet']
-    )))
-    BITCOIN_SUBSIDY_FUNC = staticmethod(lambda height: 50*100000000 >> (height + 1)//840000)
-    BITCOIN_POW_FUNC = data.block_header_type.scrypt
-    BITCOIN_SYMBOL = 'LTC'
+    return int(nSubsidy * 1000000)
 
-class LitecoinTestnet(object):
-    BITCOIN_P2P_PREFIX = 'fcc1b7dc'.decode('hex')
-    BITCOIN_P2P_PORT = 19333
-    BITCOIN_ADDRESS_VERSION = 111
-    BITCOIN_RPC_PORT = 19332
-    BITCOIN_RPC_CHECK = staticmethod(defer.inlineCallbacks(lambda bitcoind: defer.returnValue(
-        'litecoinaddress' in (yield bitcoind.rpc_help()) and
-        (yield bitcoind.rpc_getinfo())['testnet']
-    )))
-    BITCOIN_SUBSIDY_FUNC = staticmethod(lambda height: 50*100000000 >> (height + 1)//840000)
-    BITCOIN_POW_FUNC = data.block_header_type.scrypt
-    BITCOIN_SYMBOL = 'tLTC'
+nets = dict(
+    novacoin=math.Object(
+        P2P_PREFIX='e4e8e9e5'.decode('hex'),
+        P2P_PORT=7777,
+        ADDRESS_VERSION=8,
+        RPC_PORT=8344,
+        RPC_CHECK=defer.inlineCallbacks(lambda bitcoind: defer.returnValue(
+            'novacoinaddress' in (yield bitcoind.rpc_help()) and
+            not (yield bitcoind.rpc_getinfo())['testnet']
+        )),
+        SUBSIDY_FUNC=lambda target: get_subsidy(6, 100, target),
+        BLOCKHASH_FUNC=lambda data: pack.IntType(256).unpack(__import__('ltc_scrypt').getPoWHash(data)),
+        POW_FUNC=lambda data: pack.IntType(256).unpack(__import__('ltc_scrypt').getPoWHash(data)),
+        BLOCK_PERIOD=600, # s
+        SYMBOL='NVC',
+        CONF_FILE_FUNC=lambda: os.path.join(os.path.join(os.environ['APPDATA'], 'NovaCoin') if platform.system() == 'Windows' else os.path.expanduser('~/Library/Application Support/NovaCoin/') if platform.system() == 'Darwin' else os.path.expanduser('~/.novacoin'), 'novacoin.conf'),
+        BLOCK_EXPLORER_URL_PREFIX='http://novacoin.ru/block/',
+        ADDRESS_EXPLORER_URL_PREFIX='http://novacoin.ru/address/',
+        SANE_TARGET_RANGE=(2**256//1000000000 - 1, 2**256//1000 - 1),
+    ),
+    novacoin_testnet=math.Object(
+        P2P_PREFIX='cdf2c0ef'.decode('hex'),
+        P2P_PORT=17777,
+        ADDRESS_VERSION=111,
+        RPC_PORT=8344,
+        RPC_CHECK=defer.inlineCallbacks(lambda bitcoind: defer.returnValue(
+            'novacoinaddress' in (yield bitcoind.rpc_help()) and
+            (yield bitcoind.rpc_getinfo())['testnet']
+        )),
+        SUBSIDY_FUNC=lambda target: get_subsidy(6, 100, target),
+        BLOCKHASH_FUNC=lambda data: pack.IntType(256).unpack(__import__('ltc_scrypt').getPoWHash(data)),
+        POW_FUNC=lambda data: pack.IntType(256).unpack(__import__('ltc_scrypt').getPoWHash(data)),
+        BLOCK_PERIOD=600, # s
+        SYMBOL='tNVC',
+        CONF_FILE_FUNC=lambda: os.path.join(os.path.join(os.environ['APPDATA'], 'NovaCoin') if platform.system() == 'Windows' else os.path.expanduser('~/Library/Application Support/NovaCoin/') if platform.system() == 'Darwin' else os.path.expanduser('~/.novacoin'), 'novacoin.conf'),
+        BLOCK_EXPLORER_URL_PREFIX='http://nonexistent-novacoin-testnet-explorer/block/',
+        ADDRESS_EXPLORER_URL_PREFIX='http://nonexistent-novacoin-testnet-explorer/address/',
+        SANE_TARGET_RANGE=(2**256//1000000000 - 1, 2**256//1000 - 1),
+    ),
+)
+for net_name, net in nets.iteritems():
+    net.NAME = net_name
Peer-to-peer Novacoin mining pool