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https://github.com/alexgo-io/stacks-puppet-node.git
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80 lines
2.6 KiB
Python
80 lines
2.6 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Blockstore
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~~~~~
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copyright: (c) 2014 by Halfmoon Labs, Inc.
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copyright: (c) 2015 by Blockstack.org
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This file is part of Blockstore
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Blockstore is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Blockstore is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Blockstore. If not, see <http://www.gnu.org/licenses/>.
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"""
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from utilitybelt import is_hex, is_valid_int
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from binascii import hexlify, unhexlify
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from pybitcoin import BitcoinPrivateKey, script_to_hex
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from .config import *
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def add_magic_bytes(hex_script, testset=False):
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if not testset:
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magic_bytes = MAGIC_BYTES_MAINSET
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else:
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magic_bytes = MAGIC_BYTES_TESTSET
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return hexlify(magic_bytes) + hex_script
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def blockstore_script_to_hex(script):
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""" Parse the readable version of a script, return the hex version.
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"""
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hex_script = ''
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parts = script.split(' ')
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for part in parts:
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if part.startswith("NAME_") or part.startswith("NAMESPACE_"):
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try:
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hex_script += '%0.2x' % ord(eval(part))
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except:
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raise Exception('Invalid opcode: %s' % part)
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elif part.startswith("0x"):
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# literal hex string
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hex_script += part[2:]
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elif is_valid_int(part):
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hex_part = '%0.2x' % int(part)
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if len(hex_part) % 2 != 0:
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hex_part = '0' + hex_part
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hex_script += hex_part
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elif is_hex(part) and len(part) % 2 == 0:
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hex_script += part
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else:
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raise ValueError('Invalid script (at %s), contains invalid characters: %s' % (part, script))
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if len(hex_script) % 2 != 0:
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raise ValueError('Invalid script: must have an even number of chars (got %s).' % hex_script)
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return hex_script
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# generate a pay-to-pubkeyhash script from a private key.
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def get_script_pubkey( private_key ):
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hash160 = BitcoinPrivateKey(private_key).public_key().hash160()
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script_pubkey = script_to_hex( 'OP_DUP OP_HASH160 %s OP_EQUALVERIFY OP_CHECKSIG' % hash160)
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return script_pubkey
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