mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-10-12 10:58:59 +00:00
54 lines
1.6 KiB
Python
54 lines
1.6 KiB
Python
import binascii
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import urllib2
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import json
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try:
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from filecache import filecache, MONTH
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except:
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def filecache(x):
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def _inner(y):
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return y
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return _inner
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MONTH = None
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import types_pb2 as proto_types
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def bitcore_tx(url):
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f = urllib2.urlopen(url)
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data = json.load(f)
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t = proto_types.TransactionType()
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t.version = data['version']
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t.lock_time = data['locktime']
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for vin in data['vin']:
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i = t.inputs.add()
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i.prev_hash = binascii.unhexlify(vin['txid'])
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i.prev_index = vin['vout']
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asm = [ binascii.unhexlify(x) for x in vin['scriptSig']['asm'].split(' ') ]
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i.script_sig = chr(len(asm[0])) + asm[0] + chr(len(asm[1])) + asm[1] # TODO: should be op_push(x) instead of chr(len(x))
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for vout in data['vout']:
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o = t.outputs.add()
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o.amount = int(vout['value'] * 100000000)
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asm = vout['scriptPubKey']['asm'].split(' ')
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# we suppose it's OP_DUP OP_HASH160 pubkey OP_EQUALVERIFY OP_CHECKSIG
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if len(asm) != 5 or asm[0] != 'OP_DUP' or asm[1] != 'OP_HASH160' or asm[3] != 'OP_EQUALVERIFY' or asm[4] != 'OP_CHECKSIG':
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raise Exception('Unknown scriptPubKey asm: %s' % asm)
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o.script_pubkey = binascii.unhexlify('76a914' + asm[2] + '88ac')
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return t
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class TXAPIBitcoin(object):
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@filecache(MONTH)
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def get_tx(self, txhash):
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url = 'http://live.bitcore.io/api/tx/%s' % txhash
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return bitcore_tx(url)
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class TXAPITestnet(object):
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@filecache(MONTH)
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def get_tx(self, txhash):
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url = 'http://test.bitcore.io/api/tx/%s' % txhash
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return bitcore_tx(url)
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