mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-15 12:08:59 +00:00
42 lines
1.2 KiB
Python
42 lines
1.2 KiB
Python
'''
|
|
Blockchain API implementing Blockchain.info interface
|
|
'''
|
|
import binascii
|
|
import urllib2
|
|
import json
|
|
|
|
import types_pb2 as proto_types
|
|
|
|
class BlockchainApi(object):
|
|
def _raw_tx(self, txhash):
|
|
# Download tx data from blockchain.info
|
|
f = urllib2.urlopen('http://blockchain.info/rawtx/%s?scripts=true' % txhash)
|
|
print 'got', txhash
|
|
return json.load(f)
|
|
|
|
def submit(self, tx):
|
|
raise Exception("Not implemented yet")
|
|
|
|
def get_tx(self, txhash):
|
|
# Build protobuf transaction structure from blockchain.info
|
|
d = self._raw_tx(txhash)
|
|
t = proto_types.TransactionType()
|
|
|
|
for inp in d['inputs']:
|
|
di = self._raw_tx(inp['prev_out']['tx_index'])
|
|
i = t.inputs.add()
|
|
i.prev_hash = binascii.unhexlify(di['hash'])
|
|
i.prev_index = inp['prev_out']['n']
|
|
i.script_sig = binascii.unhexlify(inp['script'])
|
|
|
|
for output in d['out']:
|
|
o = t.outputs.add()
|
|
o.amount = output['value']
|
|
o.script_pubkey = binascii.unhexlify(output['script'])
|
|
|
|
return t
|
|
|
|
if __name__ == '__main__':
|
|
api = BlockchainApi()
|
|
print api.get_tx('b9f382b8dfc34accc05491712a1ad8f7f075a02056dc4821d1f60702fb3fdb2f')
|