mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-30 03:18:20 +00:00
99 lines
2.8 KiB
Python
99 lines
2.8 KiB
Python
import binascii
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from decimal import Decimal
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# from filecache import filecache, DAY
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import requests
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from . import types_pb2 as proto_types
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def fetch_json(url):
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try:
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r = requests.get(url, headers={'User-agent': 'Mozilla/5.0'})
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return r.json()
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except:
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raise Exception('URL error: %s' % url)
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def insight_tx(url, rawdata=False):
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if not rawdata:
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data = fetch_json(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 = b"\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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def smartbit_tx(url, rawdata=False):
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if not rawdata:
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data = fetch_json(url)
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else:
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data = url
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data = data['transaction']
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t = proto_types.TransactionType()
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t.version = int(data['version'])
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t.lock_time = data['locktime']
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for vin in data['inputs']:
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i = t.inputs.add()
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if 'coinbase' in vin.keys():
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i.prev_hash = b"\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['script_sig']['hex'])
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i.sequence = vin['sequence']
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for vout in data['outputs']:
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o = t.bin_outputs.add()
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o.amount = int(Decimal(vout['value']) * 100000000)
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o.script_pubkey = binascii.unhexlify(vout['script_pub_key']['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.decode('ascii')
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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.decode('ascii')
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return insight_tx(url)
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class TXAPISegnet(object):
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# @filecache(DAY)
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def get_tx(self, txhash):
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url = 'https://segnet-api.smartbit.com.au/v1/blockchain/tx/%s' % txhash.decode('ascii')
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return smartbit_tx(url)
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