async def sign_raw_tx(request):
post = await web_base.content_type_json_check(request)
try:
binary = unhexlify(post['hex'].encode())
other_pairs = dict()
for sk in post.get('pairs', list()):
pk = public_key(sk=sk)
ck = get_address(pk=pk, prefix=V.BLOCK_PREFIX)
other_pairs[ck] = (pk, sign(msg=binary, sk=sk, pk=pk))
tx = TX(binary=binary)
for txhash, txindex in tx.inputs:
input_tx = tx_builder.get_tx(txhash)
address, coin_id, amount = input_tx.outputs[txindex]
try:
tx.signature.append(
message2signature(raw=tx.b, address=address))
except BlockChainError:
if address not in other_pairs:
raise BlockChainError(
'Not found secret key "{}"'.format(address))
tx.signature.append(other_pairs[address])
data = tx.getinfo()
return web_base.json_res({
'hash': data['hash'],
'signature': data['signature'],
'hex': hexlify(tx.b).decode()
})
except BaseException:
return web_base.error_res()
def sign(self, data):
data_byte = unhexlify(data.encode('utf8'))
sig = sign(msg=data_byte, sk=self.sk, pk=self.pk)
return hexlify(sig).decode()
def sign_tx(unsigned_tx, private_key):
pub_key = public_key(private_key)
signature = sign(unsigned_tx, private_key, pub_key)
return {'data': unsigned_tx.hex(), 'signature': signature.hex()}