constants.py (5246B)
1 # -*- coding: utf-8 -*- 2 # 3 # Electrum - lightweight Bitcoin client 4 # Copyright (C) 2018 The Electrum developers 5 # 6 # Permission is hereby granted, free of charge, to any person 7 # obtaining a copy of this software and associated documentation files 8 # (the "Software"), to deal in the Software without restriction, 9 # including without limitation the rights to use, copy, modify, merge, 10 # publish, distribute, sublicense, and/or sell copies of the Software, 11 # and to permit persons to whom the Software is furnished to do so, 12 # subject to the following conditions: 13 # 14 # The above copyright notice and this permission notice shall be 15 # included in all copies or substantial portions of the Software. 16 # 17 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 18 # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19 # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 20 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 21 # BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 22 # ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 23 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 24 # SOFTWARE. 25 26 import os 27 import json 28 29 from .util import inv_dict 30 from . import bitcoin 31 32 33 def read_json(filename, default): 34 path = os.path.join(os.path.dirname(__file__), filename) 35 try: 36 with open(path, 'r') as f: 37 r = json.loads(f.read()) 38 except: 39 r = default 40 return r 41 42 43 GIT_REPO_URL = "https://github.com/spesmilo/electrum" 44 GIT_REPO_ISSUES_URL = "https://github.com/spesmilo/electrum/issues" 45 BIP39_WALLET_FORMATS = read_json('bip39_wallet_formats.json', []) 46 47 48 class AbstractNet: 49 50 BLOCK_HEIGHT_FIRST_LIGHTNING_CHANNELS = 0 51 52 @classmethod 53 def max_checkpoint(cls) -> int: 54 return max(0, len(cls.CHECKPOINTS) * 2016 - 1) 55 56 @classmethod 57 def rev_genesis_bytes(cls) -> bytes: 58 return bytes.fromhex(bitcoin.rev_hex(cls.GENESIS)) 59 60 61 class BitcoinMainnet(AbstractNet): 62 63 TESTNET = False 64 WIF_PREFIX = 0x80 65 ADDRTYPE_P2PKH = 0 66 ADDRTYPE_P2SH = 5 67 SEGWIT_HRP = "bc" 68 GENESIS = "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f" 69 DEFAULT_PORTS = {'t': '50001', 's': '50002'} 70 DEFAULT_SERVERS = read_json('servers.json', {}) 71 CHECKPOINTS = read_json('checkpoints.json', []) 72 BLOCK_HEIGHT_FIRST_LIGHTNING_CHANNELS = 497000 73 74 XPRV_HEADERS = { 75 'standard': 0x0488ade4, # xprv 76 'p2wpkh-p2sh': 0x049d7878, # yprv 77 'p2wsh-p2sh': 0x0295b005, # Yprv 78 'p2wpkh': 0x04b2430c, # zprv 79 'p2wsh': 0x02aa7a99, # Zprv 80 } 81 XPRV_HEADERS_INV = inv_dict(XPRV_HEADERS) 82 XPUB_HEADERS = { 83 'standard': 0x0488b21e, # xpub 84 'p2wpkh-p2sh': 0x049d7cb2, # ypub 85 'p2wsh-p2sh': 0x0295b43f, # Ypub 86 'p2wpkh': 0x04b24746, # zpub 87 'p2wsh': 0x02aa7ed3, # Zpub 88 } 89 XPUB_HEADERS_INV = inv_dict(XPUB_HEADERS) 90 BIP44_COIN_TYPE = 0 91 LN_REALM_BYTE = 0 92 LN_DNS_SEEDS = [ 93 'nodes.lightning.directory.', 94 'lseed.bitcoinstats.com.', 95 ] 96 97 98 class BitcoinTestnet(AbstractNet): 99 100 TESTNET = True 101 WIF_PREFIX = 0xef 102 ADDRTYPE_P2PKH = 111 103 ADDRTYPE_P2SH = 196 104 SEGWIT_HRP = "tb" 105 GENESIS = "000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943" 106 DEFAULT_PORTS = {'t': '51001', 's': '51002'} 107 DEFAULT_SERVERS = read_json('servers_testnet.json', {}) 108 CHECKPOINTS = read_json('checkpoints_testnet.json', []) 109 110 XPRV_HEADERS = { 111 'standard': 0x04358394, # tprv 112 'p2wpkh-p2sh': 0x044a4e28, # uprv 113 'p2wsh-p2sh': 0x024285b5, # Uprv 114 'p2wpkh': 0x045f18bc, # vprv 115 'p2wsh': 0x02575048, # Vprv 116 } 117 XPRV_HEADERS_INV = inv_dict(XPRV_HEADERS) 118 XPUB_HEADERS = { 119 'standard': 0x043587cf, # tpub 120 'p2wpkh-p2sh': 0x044a5262, # upub 121 'p2wsh-p2sh': 0x024289ef, # Upub 122 'p2wpkh': 0x045f1cf6, # vpub 123 'p2wsh': 0x02575483, # Vpub 124 } 125 XPUB_HEADERS_INV = inv_dict(XPUB_HEADERS) 126 BIP44_COIN_TYPE = 1 127 LN_REALM_BYTE = 1 128 LN_DNS_SEEDS = [ # TODO investigate this again 129 #'test.nodes.lightning.directory.', # times out. 130 #'lseed.bitcoinstats.com.', # ignores REALM byte and returns mainnet peers... 131 ] 132 133 134 class BitcoinRegtest(BitcoinTestnet): 135 136 SEGWIT_HRP = "bcrt" 137 GENESIS = "0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206" 138 DEFAULT_SERVERS = read_json('servers_regtest.json', {}) 139 CHECKPOINTS = [] 140 LN_DNS_SEEDS = [] 141 142 143 class BitcoinSimnet(BitcoinTestnet): 144 145 WIF_PREFIX = 0x64 146 ADDRTYPE_P2PKH = 0x3f 147 ADDRTYPE_P2SH = 0x7b 148 SEGWIT_HRP = "sb" 149 GENESIS = "683e86bd5c6d110d91b94b97137ba6bfe02dbbdb8e3dff722a669b5d69d77af6" 150 DEFAULT_SERVERS = read_json('servers_regtest.json', {}) 151 CHECKPOINTS = [] 152 LN_DNS_SEEDS = [] 153 154 155 # don't import net directly, import the module instead (so that net is singleton) 156 net = BitcoinMainnet 157 158 def set_simnet(): 159 global net 160 net = BitcoinSimnet 161 162 def set_mainnet(): 163 global net 164 net = BitcoinMainnet 165 166 def set_testnet(): 167 global net 168 net = BitcoinTestnet 169 170 171 def set_regtest(): 172 global net 173 net = BitcoinRegtest