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Txs with electrumx ok
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primal100 committed Feb 13, 2018
1 parent b9fcaf5 commit 7ba7ea4
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Showing 5 changed files with 47 additions and 25 deletions.
5 changes: 4 additions & 1 deletion cryptos/blocks.py
Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,10 @@ def deserialize_header(inp):


def mk_merkle_proof(merkle_root, hashes, index):
hash = hashes['index']
print(merkle_root)
print(hashes)
print(index)
hash = hashes[index]
try:
nodes = [safe_from_hex(h)[::-1] for h in hashes]
if len(nodes) % 2 and len(nodes) > 2:
Expand Down
24 changes: 15 additions & 9 deletions cryptos/coins/base.py
Original file line number Diff line number Diff line change
Expand Up @@ -126,8 +126,9 @@ def tx_size(self, txobj):
"""
tx = serialize(txobj)
size = len(tx) / 2
for input in txobj['inputs']:
if input.get('new_segwit', False):
addresses = txobj.get('addresses', [])
for i, input in enumerate(txobj['ins']):
if addresses and self.is_new_segwit(addresses[i]):
size += self.signature_sizes['p2wpkh']
elif input.get('segwit', False):
size += self.signature_sizes['p2w_p2sh']
Expand All @@ -142,7 +143,7 @@ def estimate_fee(self, txobj, numblocks=1, cache=None):
"""
num_bytes = self.tx_size(txobj)
per_kb = self.estimate_fee_per_kb(numblocks=numblocks, cache=cache)
return num_bytes / 1000 * per_kb
return int(num_bytes * per_kb * 100000000)

def block_header(self, *heights):
"""
Expand Down Expand Up @@ -230,7 +231,7 @@ def get_merkle(self, *txs):
return self.rpc_client.get_merkle(*txs)

def get_all_merkle_info(self, *txinfos):
return self.rpc_client.get_all_merkle_data(txinfos)
return self.rpc_client.get_all_merkle_data(*txinfos)

def merkle_prove(self, *txinfos):
"""
Expand All @@ -245,6 +246,10 @@ def merkle_prove(self, *txinfos):
proofs.append(proof)
return proofs

def merkle_prove_txids(self, *txhashes):
txs = self.get_txs(*txhashes)
return self.merkle_prove(*txs)

def pushtx(self, tx):
"""
Push/ Broadcast a transaction to the blockchain
Expand Down Expand Up @@ -509,16 +514,17 @@ def mktx_with_change(self, ins, outs, change=None, fee=50000, fee_for_blocks=0,
raise Exception("Not enough money")
elif isum > osum + fee + 5430:
outs += [{"address": change, "value": isum - osum - fee}]

orig_outs = [out.copy() for out in outs]
orig_ins = [inp.copy() for inp in ins]
txobj = self.mktx(ins, outs, locktime=locktime, sequence=sequence)

if fee_for_blocks:
fee = self.estimate_fee(txobj, numblocks=fee_for_blocks)
for out in txobj['outs']:
for out in orig_outs:
if out['address'] == change:
out['value'] = isum - osum - fee

return self.mktx(ins, outs)
return self.mktx(orig_ins, orig_outs, locktime=locktime, sequence=sequence)

def preparemultitx(self, frm, outs, fee=50000, change_addr=None, fee_for_blocks=0, segwit=False):
"""
Expand All @@ -533,12 +539,12 @@ def preparemultitx(self, frm, outs, fee=50000, change_addr=None, fee_for_blocks=
change_addr = change_addr or frm
return self.mktx_with_change(unspents2, outs, fee=fee, change=change_addr, fee_for_blocks=fee_for_blocks)

def preparetx(self, frm, to, value, fee=50000, change_addr=None, segwit=False):
def preparetx(self, frm, to, value, fee=50000, fee_for_blocks=0, change_addr=None, segwit=False):
"""
Prepare a transaction using from and to address_derivations, value and a fee, with change sent back to from address
"""
outs = [{'address': to, 'value': value}]
return self.preparemultitx(frm, outs, fee=fee, change_addr=change_addr, segwit=segwit)
return self.preparemultitx(frm, outs, fee=fee, fee_for_blocks=fee_for_blocks, change_addr=change_addr, segwit=segwit)

def preparesignedmultitx(self, privkey, frm, outs, fee=50000, change_addr=None, fee_for_blocks=0):
"""
Expand Down
10 changes: 7 additions & 3 deletions cryptos/electrumx_client/rpc_async.py
Original file line number Diff line number Diff line change
Expand Up @@ -211,11 +211,15 @@ def get_all_merkle_data(self, *txs):
get_merkle_requests = self._get_merkle(*txs)
results = self.rpc_multiple_send_and_wait(block_header_requests + get_merkle_requests)
merkles = []
for result in results:
if 'merkle' in result.keys():
block_header = next(r for r in results if r['height'] == results['block_height'])
block_header_responses = [r['data'] for r in results if 'merkle_root' in r['data'].keys()]
merkle_responses = [r['data'] for r in results if 'merkle' in r['data'].keys()]
for result in merkle_responses:
block_headers = [r for r in block_header_responses if r['block_height'] == result['block_height']]
if block_headers:
block_header = block_headers[0]
result['merkle_root'] = block_header['merkle_root']
merkles.append(result)
break
return merkles

def run_command(self, request):
Expand Down
5 changes: 2 additions & 3 deletions cryptos/transaction.py
Original file line number Diff line number Diff line change
Expand Up @@ -218,7 +218,7 @@ def signature_form(tx, i, script, hashcode=SIGHASH_ALL, segwit=False):
if j == i:
newtx['ins'][j]['script'] = script
else:
newtx['ins'][i]['script'] = ""
newtx['ins'][j]['script'] = ""
if segwit or hashcode & 255 == SIGHASH_ALL + SIGHASH_FORKID:
return uahf_digest(newtx, i)
elif hashcode == SIGHASH_NONE:
Expand All @@ -230,8 +230,7 @@ def signature_form(tx, i, script, hashcode=SIGHASH_ALL, segwit=False):
out['script'] = ""
elif hashcode == SIGHASH_ANYONECANPAY:
newtx["ins"] = [newtx["ins"][i]]
else:
pass

return serialize(newtx, include_witness=False)

# Making the actual signatures
Expand Down
28 changes: 19 additions & 9 deletions test_coins.py
Original file line number Diff line number Diff line change
Expand Up @@ -14,10 +14,12 @@ class BaseCoinCase(unittest.TestCase):
addresses = []
segwit_addresses = []
new_segwit_addresses = []
txheight = None
multisig_address = ""
privkeys = []
txid = None
txheight = None
merkle_txhash = None
merkle_txheight = None
tx = None
txinputs = None
min_latest_height = 99999999999
Expand Down Expand Up @@ -301,7 +303,6 @@ def assertTransactionOK(self):
#Arbitrarily set send value, change value, receiver and change address
outputs_value = max_value - self.fee
send_value = int(outputs_value * 0.1)
change_value = int(outputs_value - send_value)

if sender == self.addresses[0]:
receiver = self.addresses[1]
Expand All @@ -313,11 +314,10 @@ def assertTransactionOK(self):
receiver = self.addresses[0]
change_address = self.addresses[1]

outs = [{'value': send_value, 'address': receiver},
{'value': change_value, 'address': change_address}]
outs = [{'value': send_value, 'address': receiver}]

#Create the transaction using all available unspents as inputs
tx = c.mktx(unspents, outs)
tx = c.mktx_with_change(unspents, outs, change=change_address, fee_for_blocks=1)

#For testnets, private keys are already available. For live networks, private keys need to be entered manually at this point
try:
Expand All @@ -335,7 +335,9 @@ def assertTransactionOK(self):
tx = serialize(tx)
#Push the transaction to the network
result = c.pushtx(tx)
self.assertPushTxOK(result)
tx_hash = public_txhash(tx, self.coin.hashcode)
self.assertEqual(result, tx_hash)
#self.assertPushTxOK(result)

def assertPushTxOK(self, result):
#For chain.so. Override for other explorers.
Expand Down Expand Up @@ -401,8 +403,9 @@ def assertBlockHeadersOK(self):

def assertMerkleProofOK(self):
coin = self.coin(testnet=self.testnet)
proof = coin.merkle_prove(self.txid)
self.assertEqual(self.num_merkle_siblings, len(proof['siblings']))
proof = coin.merkle_prove({'tx_hash': self.merkle_txhash, 'height': self.merkle_txheight})
self.assertEqual(len(proof), 1)
#self.assertEqual(self.num_merkle_siblings, len(proof[0]['siblings']))


class TestBitcoin(BaseCoinCase):
Expand Down Expand Up @@ -436,7 +439,8 @@ class TestBitcoin(BaseCoinCase):
'value': 100000, 'address': '1A7hMTCfHbQJ1RAtBAVNcUtVsh8i8yFdmT'}]
min_latest_height = 503351
txid = "fd3c66b9c981a3ccc40ae0f631f45286e7b31cf6d9afa1acaf8be1261f133690"
txheight = 135235
merkle_txhash = "8b712b86b4882a61b1031b828a3e1cde5c62ee8896961a513c744588486cc903"
merkle_txheight = 509045
txinputs = [{"output": "7a905da948f1e174c43c6f41b0a0ee338119191de7b92bd1ca3c79f899e5d583:1", 'value': 1000000},
{"output": "da1ad82b777c51105d3a24cef253e0301dd08153115013a49e0edf69fd7cdadf:1", 'value': 100000}]
tx = {'txid': 'fd3c66b9c981a3ccc40ae0f631f45286e7b31cf6d9afa1acaf8be1261f133690'}
Expand Down Expand Up @@ -539,6 +543,12 @@ class TestBitcoinTestnet(BaseCoinCase):
txinputs = [{'output': '1b8ae7a7a9629bbcbc13339bc29b258122c8d8670c54e6883d35c6a699e23a33:1', 'value': 190453372316}]
tx = {'txid': '1d69dd7a23f18d86f514ff7d8ef85894ad00c61fb29f3f7597e9834ac2569c8c'}

def test_tx(self):
coin = self.coin(testnet=self.testnet, client_kwargs = {'use_ssl': False})
tx = coin.preparetx('myLktRdRh3dkK3gnShNj5tZsig6J1oaaJW', 'mnjBtsvoSo6dMvMaeyfaCCRV4hAF8WA2cu', 550000, fee_for_blocks=1)
signed_tx = coin.sign(tx, 0, 'cUdNKzomacP2631fa5Q4yHv2fADc8Ueymr5Z5NUSJjVM13igcVJk')
result = coin.pushtx(serialize(signed_tx))

def test_subscribe_block_headers(self):
coin = self.coin(testnet=self.testnet, client_kwargs={'use_ssl': False})
coin.subscribe_to_block_headers(callback=print)
Expand Down

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