Python bitcoin.core.COutPoint() Examples

def mock_listunspent(self, addrs):
    output1 = {'outpoint': COutPoint(lx('34eb81bc0d1a822369f75174fd4916b1ec490d8fbcba33168e820cc78a52f608'), 0),
               'confirmations': 62952, 'address': P2PKHBitcoinAddress('mz7poFND7hVGRtPWjiZizcCnjf6wEDWjjT'),
               'spendable': False, 'amount': 49000000, 'solvable': False, 'scriptPubKey': CScript(
            [OP_DUP, OP_HASH160, x('cc0a909c4c83068be8b45d69b60a6f09c2be0fda'), OP_EQUALVERIFY, OP_CHECKSIG]),
               'account': ''}
    output2 = {'address': P2PKHBitcoinAddress('mz7poFND7hVGRtPWjiZizcCnjf6wEDWjjT'), 'amount': 2750, 'account': '',
               'spendable': False, 'solvable': False, 'confirmations': 62932,
               'outpoint': COutPoint(lx('6773785b4dc5d2cced67d26fc0820329307a8e10dfaef50d506924984387bf0b'), 1),
               'scriptPubKey': CScript(
                   [OP_DUP, OP_HASH160, x('cc0a909c4c83068be8b45d69b60a6f09c2be0fda'), OP_EQUALVERIFY,
                    OP_CHECKSIG])}
    output3 = {'address': P2PKHBitcoinAddress('mz7poFND7hVGRtPWjiZizcCnjf6wEDWjjT'), 'amount': 2750, 'account': '',
               'spendable': False, 'solvable': False, 'confirmations': 62932,
               'outpoint': COutPoint(lx('6773785b4dc5d2cced67d26fc0820329307a8e10dfaef50d506924984387bf0b'), 5),
               'scriptPubKey': CScript(
                   [OP_DUP, OP_HASH160, x('cc0a909c4c83068be8b45d69b60a6f09c2be0fda'), OP_EQUALVERIFY,
                    OP_CHECKSIG])}
    unspent_outputs = [output1, output2, output3]
    return unspent_outputs 

def listunspent(self, minconf=0, maxconf=9999999, addrs=None):
        """Return unspent transaction outputs in wallet

        Outputs will have between minconf and maxconf (inclusive)
        confirmations, optionally filtered to only include txouts paid to
        addresses in addrs.
        """
        r = None
        if addrs is None:
            r = self._call('listunspent', minconf, maxconf)
        else:
            addrs = [str(addr) for addr in addrs]
            r = self._call('listunspent', minconf, maxconf, addrs)

        r2 = []
        for unspent in r:
            unspent['outpoint'] = COutPoint(lx(unspent['txid']), unspent['vout'])
            del unspent['txid']
            del unspent['vout']

            unspent['address'] = CBitcoinAddress(unspent['address'])
            unspent['scriptPubKey'] = CScript(unhexlify(unspent['scriptPubKey']))
            unspent['amount'] = int(unspent['amount'] * COIN)
            r2.append(unspent)
        return r2 

def listunspent(self, minconf=0, maxconf=9999999, addrs=None):
        """Return unspent transaction outputs in wallet

        Outputs will have between minconf and maxconf (inclusive)
        confirmations, optionally filtered to only include txouts paid to
        addresses in addrs.
        """
        r = None
        if addrs is None:
            r = self._call('listunspent', minconf, maxconf)
        else:
            addrs = [str(addr) for addr in addrs]
            r = self._call('listunspent', minconf, maxconf, addrs)

        r2 = []
        for unspent in r:
            unspent['outpoint'] = COutPoint(lx(unspent['txid']), unspent['vout'])
            del unspent['txid']
            del unspent['vout']

            unspent['address'] = CBitcoinAddress(unspent['address'])
            unspent['scriptPubKey'] = CScript(unhexlify(unspent['scriptPubKey']))
            unspent['amount'] = int(unspent['amount'] * COIN)
            r2.append(unspent)
        return r2 

def create_trx(op_return_val, issuing_transaction_fee, issuing_address, tx_outs, tx_inputs):
    """

    :param op_return_val:
    :param issuing_transaction_fee:
    :param issuing_address:
    :param tx_outs:
    :param tx_input:
    :return:
    """
    cert_out = CMutableTxOut(0, CScript([OP_RETURN, op_return_val]))
    tx_ins = []
    value_in = 0
    for tx_input in tx_inputs:
        tx_ins.append(CTxIn(COutPoint(tx_input.tx_hash, tx_input.tx_out_index)))
        value_in += tx_input.coin_value

    # send change back to our address
    amount = value_in - issuing_transaction_fee
    if amount > 0:
        change_out = create_transaction_output(issuing_address, amount)
        tx_outs = tx_outs + [change_out]
    tx_outs = tx_outs + [cert_out]
    transaction = CMutableTransaction(tx_ins, tx_outs)
    return transaction 

def listunspent(self, minconf=0, maxconf=9999999, addrs=None):
        """Return unspent transaction outputs in wallet

        Outputs will have between minconf and maxconf (inclusive)
        confirmations, optionally filtered to only include txouts paid to
        addresses in addrs.
        """
        r = None
        if addrs is None:
            r = self._call('listunspent', minconf, maxconf)
        else:
            addrs = [str(addr) for addr in addrs]
            r = self._call('listunspent', minconf, maxconf, addrs)

        r2 = []
        for unspent in r:
            unspent['outpoint'] = COutPoint(lx(unspent['txid']), unspent['vout'])
            del unspent['txid']
            del unspent['vout']

            unspent['address'] = CBitcoinAddress(unspent['address'])
            unspent['scriptPubKey'] = CScript(unhexlify(unspent['scriptPubKey']))
            unspent['amount'] = int(unspent['amount'] * COIN)
            r2.append(unspent)
        return r2 

def listunspent(self, minconf=0, maxconf=9999999, addrs=None):
        """Return unspent transaction outputs in wallet

        Outputs will have between minconf and maxconf (inclusive)
        confirmations, optionally filtered to only include txouts paid to
        addresses in addrs.
        """
        r = None
        if addrs is None:
            r = self._call('listunspent', minconf, maxconf)
        else:
            addrs = [str(addr) for addr in addrs]
            r = self._call('listunspent', minconf, maxconf, addrs)

        r2 = []
        for unspent in r:
            unspent['outpoint'] = COutPoint(lx(unspent['txid']), unspent['vout'])
            del unspent['txid']
            del unspent['vout']

            unspent['address'] = CBitcoinAddress(unspent['address'])
            unspent['scriptPubKey'] = CScript(unhexlify(unspent['scriptPubKey']))
            unspent['amount'] = int(unspent['amount'] * COIN)
            r2.append(unspent)
        return r2 

def outpoint(self):
        return COutPoint(lx(self.tx_id), self.vout) 

def make_unsigned(cls, outpoints, outputs, tx_fee=TRANSACTION_FEE, testnet=False, out_value=None):
        """
        Build an unsigned transaction.

        Args:
            outpoints: A `list` of `dict` objects which contain a txid, vout, value, and scriptPubkey.
            outputs: If a single address the full value of the inputs (minus the tx fee) will be sent there.
                Otherwise it should be a `list` of `dict` objects containing address and value.
            tx_fee: The Bitcoin network fee to be paid on this transaction.
            testnet: Should this transaction be built for testnet?
            out_value: used if you want to specify a specific output value otherwise the full value
                of the inputs (minus the tx fee) will be used.
        """
        # build the inputs from the outpoints object
        SelectParams("testnet" if testnet else "mainnet")
        txins = []
        in_value = 0
        for outpoint in outpoints:
            in_value += outpoint["value"]
            txin = CMutableTxIn(COutPoint(lx(outpoint["txid"]), outpoint["vout"]))
            txin.scriptSig = CScript(x(outpoint["scriptPubKey"]))
            txins.append(txin)

        # build the outputs
        txouts = []
        if isinstance(outputs, list):
            for output in outputs:
                value = output["value"]
                address = output["address"]
                txouts.append(CMutableTxOut(value, CBitcoinAddress(address).to_scriptPubKey()))
        else:
            value = out_value if out_value is not None else (in_value - tx_fee)
            txouts.append(CMutableTxOut(value, CBitcoinAddress(outputs).to_scriptPubKey()))

        # make the transaction
        tx = CMutableTransaction(txins, txouts)

        return BitcoinTransaction(tx) 

def open_channel(address, mymoney, theirmoney, fees, their_coins, their_change, their_pubkey, their_out_addr): # pylint: disable=too-many-arguments, line-too-long
    """Open a payment channel."""
    # Get inputs and change output
    coins, change = select_coins(mymoney + 2 * fees)
    # Make the anchor script
    anchor_output_script = anchor_script(get_pubkey(), their_pubkey)
    # Construct the anchor utxo
    payment = CMutableTxOut(mymoney + theirmoney + 2 * fees,
                            anchor_output_script.to_p2sh_scriptPubKey())
    # Anchor tx
    transaction = CMutableTransaction(
        their_coins + coins,
        [payment, change, their_change])
    # Half-sign
    transaction = g.bit.signrawtransaction(transaction)['tx']
    # Create channel in DB
    our_addr = g.bit.getnewaddress()
    channel = Channel(address=address,
                      anchor_point=COutPoint(transaction.GetHash(), 0),
                      anchor_index=0,
                      their_sig=b'',
                      anchor_redeem=anchor_output_script,
                      our_balance=mymoney,
                      our_addr=our_addr,
                      their_balance=theirmoney,
                      their_addr=their_out_addr,
                     )
    database.session.add(channel)
    database.session.commit()
    # Event: channel opened
    CHANNEL_OPENED.send('channel', address=address)
    return (transaction, anchor_output_script, our_addr) 

def update_anchor(address, new_anchor, their_sig):
    """Update the anchor txid after both have signed."""
    channel = Channel.query.get(address)
    channel.anchor_point = COutPoint(new_anchor, channel.anchor_point.n)
    channel.their_sig = their_sig
    database.session.commit()
    return channel.signature(channel.commitment()) 

def test_json_roundtrip(self):
        VALUES = [
            42, 0, -42, 2100000000000000, -2100000000000000,
            "basic string", "\u1111Unicode", "\U00010000Wide Unicode",
            "\x00\n\t\r\nEscape codes", "\"'\"Quotes", "",
            None,
            b"\x00\x01\xFFBinary data", b"",
            CBase58Data.from_bytes(b'\x00\x01\xFF', 42),
            P2SHBitcoinAddress.from_bytes(b'\x00\x01\xFF'),
            P2PKHBitcoinAddress.from_bytes(b'\x00\x01\xFF'),
            CMutableTxIn(COutPoint(b'\x00'*16+b'\xFF'*16, 42),
                         CScript(b'\x00\x01\xFF'),
                         42),
            CMutableTxOut(42, CScript(b'\x00\x01\xFF')),
            CMutableTransaction([CMutableTxIn(COutPoint(b'\x00'*32, 42),
                                              CScript(b'\x00\x01\xFF'),
                                              42),
                                 CMutableTxIn(COutPoint(b'\xFF'*32, 42),
                                              CScript(b'\xFF\x01\x00'),
                                              43)],
                                [CMutableTxOut(42, CScript(b'\x00\x01\xFF')),
                                 CMutableTxOut(43, CScript(b'\xFF\x01\x00'))],
                                42, 3),
            [1, b'\x00\x01\xFF', "List Test",],
            {'a':1, 'key':b'\xFF\x01\x00', 1:'Dictionary Test'},
            [{3: [0, 1, 2,],}, [[b'\xFFRecursion Test',],],],
        ]
        for value in VALUES:
            self.assertEqual(from_json(to_json(value)), value) 

def test_init_with_field_keyword_args(self):
        ins = (
            CTxIn(COutPoint(lx('537ecb89e5ed7e872f988447432e6791c0a58b069c4ec8647e1683a383e867a3'), 0),
                  x('473044022043b9aee9187effd7e6c7bc444b09162570f17e36b4a9c02cf722126cc0efa3d502200b3ba14c809fa9a6f7f835cbdbbb70f2f43f6b30beaf91eec6b8b5981c80cea50121025edf500f18f9f2b3f175f823fa996fbb2ec52982a9aeb1dc2e388a651054fb0f'))
        )
        outs = (
            CTxOut(114263, x('76a91495efca2c6a6f0e0f0ce9530219b48607a962e77788ac')),
            CTxOut(2125893, x('76a914f28abfb465126d6772dcb4403b9e1ad2ea28a03488ac'))
        )
        fields_data = {'Timestamp': 1432478808}
        tx = Transaction(ins, outs, 0, 2, peercoin_fields, fields_data)
        self.assertEqual(tx.fields, peercoin_fields)
        self.assertEqual(tx.Timestamp, 1432478808) 

def create(url, mymoney, theirmoney, fees=10000):
    """Open a payment channel.

    After this method returns, a payment channel will have been established
    with the node identified by url, in which you can send mymoney satoshis
    and recieve theirmoney satoshis. Any blockchain fees involved in the
    setup and teardown of the channel should be collected at this time.
    """
    bob = jsonrpcproxy.Proxy(url+'channel/')
    # Choose inputs and change output
    coins, change = select_coins(mymoney + 2 * fees)
    pubkey = get_pubkey()
    my_out_addr = g.bit.getnewaddress()
    # Tell Bob we want to open a channel
    transaction, redeem, their_out_addr = bob.open_channel(
        g.addr, theirmoney, mymoney, fees,
        coins, change,
        pubkey, my_out_addr)
    # Sign and send the anchor
    transaction = g.bit.signrawtransaction(transaction)
    assert transaction['complete']
    transaction = transaction['tx']
    g.bit.sendrawtransaction(transaction)
    # Set up the channel in the DB
    channel = Channel(address=url,
                      anchor_point=COutPoint(transaction.GetHash(), 0),
                      anchor_index=1,
                      their_sig=b'',
                      anchor_redeem=redeem,
                      our_balance=mymoney,
                      our_addr=my_out_addr,
                      their_balance=theirmoney,
                      their_addr=their_out_addr,
                     )
    # Exchange signatures for the inital commitment transaction
    channel.their_sig = \
        bob.update_anchor(g.addr, transaction.GetHash(),
                          channel.signature(channel.commitment()))
    database.session.add(channel)
    database.session.commit()
    # Event: channel opened
    CHANNEL_OPENED.send('channel', address=url)