def 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 BTChip 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
                        self.get_client(True)
                    self.plugin.handler.show_message("Signing ...")
                else:
                    # Sign input with the provided PIN
                    inputSignature = self.get_client().untrustedHashSign(inputsPaths[inputIndex],
                    pin)
                    inputSignature[0] = 0x30 # force for 1.4.9+
                    signatures.append(inputSignature)
                    inputIndex = inputIndex + 1
                firstTransaction = False
        except Exception, e:
            self.give_error(e, True)
Esempio n. 2
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    def 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 BTChip 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
                        self.get_client(True)
                    self.plugin.handler.show_message("Signing ...")
                else:
                    # Sign input with the provided PIN
                    inputSignature = self.get_client().untrustedHashSign(
                        inputsPaths[inputIndex], pin)
                    inputSignature[0] = 0x30  # force for 1.4.9+
                    signatures.append(inputSignature)
                    inputIndex = inputIndex + 1
                firstTransaction = False
        except Exception, e:
            self.give_error(e, True)
 def setAmount(self, amount):
     if amount is None:
         self.setText("")
     else:
         self.setText(format_satoshis_plain(amount, self.decimal_point()))
 def setAmount(self, amount):
     if amount is None:
         self.setText("")
     else:
         self.setText(format_satoshis_plain(amount, self.decimal_point()))