Python BIP32_HD_Wallet.sign_transaction方法代码示例

# 需要导入模块: from electrum.wallet import BIP32_HD_Wallet [as 别名]
# 或者: from electrum.wallet.BIP32_HD_Wallet import sign_transaction [as 别名]
    def sign_transaction(self, tx, password):
        if self.has_seed():
            return BIP32_HD_Wallet.sign_transaction(self, tx, password)
        if tx.is_complete():
            return
        if not self.check_proper_device():
            give_error("Wrong device or password")
        # previous transactions used as inputs
        prev_tx = {}
        # path of the xpubs that are involved
        xpub_path = {}
        for txin in tx.inputs:
            tx_hash = txin["prevout_hash"]

            ptx = self.transactions.get(tx_hash)
            if ptx is None:
                ptx = self.network.synchronous_get(("blockchain.transaction.get", [tx_hash]))
                ptx = Transaction(ptx)
            prev_tx[tx_hash] = ptx

            for x_pubkey in txin["x_pubkeys"]:
                account_derivation = None
                if not is_extended_pubkey(x_pubkey):
                    continue
                xpub = x_to_xpub(x_pubkey)
                for k, v in self.master_public_keys.items():
                    if v == xpub:
                        account_id = re.match("x/(\d+)'", k).group(1)
                        account_derivation = "44'/0'/%s'" % account_id
                if account_derivation is not None:
                    xpub_path[xpub] = account_derivation

        self.plugin.sign_transaction(tx, prev_tx, xpub_path)

# 需要导入模块: from electrum.wallet import BIP32_HD_Wallet [as 别名]
# 或者: from electrum.wallet.BIP32_HD_Wallet import sign_transaction [as 别名]
    def sign_transaction(self, tx, password):
        if self.has_seed():
            return BIP32_HD_Wallet.sign_transaction(self, tx, password)
        if tx.is_complete():
            return
        #if tx.error:
        #    raise BaseException(tx.error)
        self.signing = True
        inputs = []
        inputsPaths = []
        pubKeys = []
        trustedInputs = []
        redeemScripts = []
        signatures = []
        preparedTrustedInputs = []
        changePath = ""
        changeAmount = None
        output = None
        outputAmount = None
        use2FA = False
        pin = ""
        rawTx = tx.serialize()
        # Fetch inputs of the transaction to sign
        for txinput in tx.inputs:
            if ('is_coinbase' in txinput and txinput['is_coinbase']):
                self.give_error("Coinbase not supported")     # should never happen
            inputs.append([ self.transactions[txinput['prevout_hash']].raw,
                             txinput['prevout_n'] ])
            address = txinput['address']
            inputsPaths.append(self.address_id(address))
            pubKeys.append(self.get_public_keys(address))

        # Recognize outputs - only one output and one change is authorized
        if len(tx.outputs) > 2: # should never happen
            self.give_error("Transaction with more than 2 outputs not supported")
        for type, address, amount in tx.outputs:
            assert type == 'address'
            if self.is_change(address):
                changePath = self.address_id(address)
                changeAmount = amount
            else:
                if output <> None: # should never happen
                    self.give_error("Multiple outputs with no change not supported")
                output = address
                outputAmount = amount

        self.get_client() # prompt for the PIN before displaying the dialog if necessary
        if not self.check_proper_device():
            self.give_error('Wrong device or password')

        self.plugin.handler.show_message("Signing Transaction ...")
        try:
            # Get trusted inputs from the original transactions
            for utxo in inputs:
                txtmp = bitcoinTransaction(bytearray(utxo[0].decode('hex')))
                trustedInputs.append(self.get_client().getTrustedInput(txtmp, utxo[1]))
                # TODO : Support P2SH later
                redeemScripts.append(txtmp.outputs[utxo[1]].script)
            # Sign all inputs
            firstTransaction = True
            inputIndex = 0
            while inputIndex < len(inputs):
                self.get_client().startUntrustedTransaction(firstTransaction, inputIndex,
                trustedInputs, redeemScripts[inputIndex])
                outputData = self.get_client().finalizeInput(output, format_satoshis_plain(outputAmount),
                format_satoshis_plain(self.get_tx_fee(tx)), changePath, bytearray(rawTx.decode('hex')))
                if firstTransaction:
                    transactionOutput = outputData['outputData']
                if outputData['confirmationNeeded']:
                    # TODO : handle different confirmation types. For the time being only supports keyboard 2FA
                    self.plugin.handler.stop()
                    if 'keycardData' in outputData:
                        pin2 = ""
                        for keycardIndex in range(len(outputData['keycardData'])):
                            msg = "Do not enter your device PIN here !\r\n\r\n" + \
                                "Your Ledger Wallet wants to talk to you and tell you a unique second factor code.\r\n" + \
                                "For this to work, please match the character between stars of the output address using your security card\r\n\r\n" + \
                                "Output address : "
                            for index in range(len(output)):
                                if index == outputData['keycardData'][keycardIndex]:
                                    msg = msg + "*" + output[index] + "*"
                                else:
                                    msg = msg + output[index]
                            msg = msg + "\r\n"
                            confirmed, p, pin = self.password_dialog(msg)
                            if not confirmed:
                                raise Exception('Aborted by user')
                            try:
                                pin2 = pin2 + chr(int(pin[0], 16))
                            except:
                                raise Exception('Invalid PIN character')
                        pin = pin2
                    else:
                        use2FA = True
                        confirmed, p, pin = self.password_dialog()
                        if not confirmed:
                            raise Exception('Aborted by user')
                        pin = pin.encode()
                        self.client.bad = True
                        self.device_checked = False
#.........这里部分代码省略.........