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https://github.com/trezor/trezor-firmware.git
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337fe029fd
The insight api transaction parser used to look at the assembly to reconstruct the input and output scripts. This patch changes it to use the hex input directly. This fixes parsing some instructions with unknown opcodes (e.g. multisig inputs with "0" opcode).
56 lines
1.5 KiB
Python
56 lines
1.5 KiB
Python
import binascii
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import urllib2
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import json
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from decimal import Decimal
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from filecache import filecache, DAY
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import types_pb2 as proto_types
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def insight_tx(url, rawdata=False):
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if not rawdata:
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try:
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f = urllib2.urlopen(url)
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data = json.load(f)
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except:
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raise Exception('URL error: %s' % url)
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else:
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data = url
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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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if 'coinbase' in vin.keys():
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i.prev_hash = "\0"*32
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i.prev_index = 0xffffffff # signed int -1
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i.script_sig = binascii.unhexlify(vin['coinbase'])
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i.sequence = vin['sequence']
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else:
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i.prev_hash = binascii.unhexlify(vin['txid'])
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i.prev_index = vin['vout']
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i.script_sig = binascii.unhexlify(vin['scriptSig']['hex'])
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i.sequence = vin['sequence']
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for vout in data['vout']:
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o = t.bin_outputs.add()
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o.amount = int(Decimal(str(vout['value'])) * 100000000)
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o.script_pubkey = binascii.unhexlify(vout['scriptPubKey']['hex'])
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return t
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class TXAPIBitcoin(object):
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@filecache(DAY)
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def get_tx(self, txhash):
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url = 'https://insight.bitpay.com/api/tx/%s' % txhash
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return insight_tx(url)
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class TXAPITestnet(object):
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@filecache(DAY)
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def get_tx(self, txhash):
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url = 'https://test-insight.bitpay.com/api/tx/%s' % txhash
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return insight_tx(url)
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