code refactoring; remove redundancies and sanitize transactions read from file or text
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parent
5aa18c4bb5
commit
dfb1bd1203
187
lib/gui_qt.py
187
lib/gui_qt.py
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@ -1751,23 +1751,21 @@ class ElectrumWindow(QMainWindow):
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return seed, gap
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def generate_transaction_information_widget(self,layout, decoded_tx):
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def generate_transaction_information_widget(self, tx):
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tabs = QTabWidget(self)
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layout.addWidget(tabs)
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tab1 = QWidget()
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grid_ui = QGridLayout(tab1)
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grid_ui.setColumnStretch(0,1)
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tabs.addTab(tab1, _('Outputs') )
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tree_widget = MyTreeWidget(self)
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tree_widget.setColumnCount(2)
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tree_widget.setHeaderLabels( [_('Address'), _('Amount')] )
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tree_widget.setColumnWidth(0, 300)
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tree_widget.setColumnWidth(1, 50)
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for output in decoded_tx["outputs"]:
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for output in tx.d["outputs"]:
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item = QTreeWidgetItem( ["%s" %(output["address"]), "%s" % ( format_satoshis(output["value"]))] )
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tree_widget.addTopLevelItem(item)
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@ -1775,141 +1773,155 @@ class ElectrumWindow(QMainWindow):
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grid_ui.addWidget(tree_widget)
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tab2 = QWidget()
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grid_ui = QGridLayout(tab2)
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grid_ui.setColumnStretch(0,1)
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tabs.addTab(tab2, _('Inputs') )
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tree_widget = MyTreeWidget(self)
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tree_widget.setColumnCount(2)
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tree_widget.setHeaderLabels( [_('Sequence'), _('Address'), _('Previous output')] )
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for input_line in decoded_tx["inputs"]:
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for input_line in tx.d["inputs"]:
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item = QTreeWidgetItem( [str(input_line["sequence"]), str(input_line["address"]), str(input_line["prevout_hash"])] )
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tree_widget.addTopLevelItem(item)
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tree_widget.setMaximumHeight(100)
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grid_ui.addWidget(tree_widget)
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return tabs
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def sign_raw_transaction(self):
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input_info = json.loads(self.raw_tx["input_info"])
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tx = Transaction(self.raw_tx["hex"])
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def tx_dict_from_text(self, txt):
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try:
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tx_dict = json.loads(str(txt))
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assert "hex" in tx_dict.keys()
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assert "complete" in tx_dict.keys()
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if not tx_dict["complete"]:
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assert "input_info" in tx_dict.keys()
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except:
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QMessageBox.critical(None, "Unable to parse transaction", _("Electrum was unable to parse your transaction:"))
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return None
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return tx_dict
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if self.wallet.use_encryption:
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password = self.password_dialog()
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if not password:
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return
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else:
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password = None
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try:
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self.wallet.signrawtransaction(tx, input_info, [], password)
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def read_tx_from_file(self):
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fileName = QFileDialog.getOpenFileName(QWidget(), _("Select your transaction file"), os.path.expanduser('~'))
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if not fileName:
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return
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try:
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with open(fileName, "r") as f:
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file_content = f.read()
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except (ValueError, IOError, os.error), reason:
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QMessageBox.critical(None,"Unable to read file or no transaction found", _("Electrum was unable to open your transaction file") + "\n" + str(reason))
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fileName = QFileDialog.getSaveFileName(QWidget(), _("Select where to save your signed transaction"), os.path.expanduser('~/signed_tx_%s' % (tx.hash()[0:8])))
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if fileName:
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with open(fileName, "w+") as f:
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f.write(json.dumps(tx.as_dict(),indent=4) + '\n')
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self.show_message(_("Transaction saved succesfully"))
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except BaseException, e:
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self.show_message(str(e))
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return
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return self.tx_dict_from_text(file_content)
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def create_sign_transaction_window(self, tx):
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decoded_tx = Transaction(tx["hex"])
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decoded_tx = decoded_tx.deserialize()
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self.raw_tx = tx
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def sign_raw_transaction(self, tx, input_info):
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if self.wallet.use_encryption:
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password = self.password_dialog()
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if not password:
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return
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else:
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password = None
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try:
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self.wallet.signrawtransaction(tx, input_info, [], password)
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fileName = QFileDialog.getSaveFileName(QWidget(), _("Select where to save your signed transaction"), os.path.expanduser('~/signed_tx_%s' % (tx.hash()[0:8])))
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if fileName:
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with open(fileName, "w+") as f:
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f.write(json.dumps(tx.as_dict(),indent=4) + '\n')
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self.show_message(_("Transaction saved succesfully"))
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except BaseException, e:
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self.show_message(str(e))
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def create_sign_transaction_window(self, tx_dict):
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tx = Transaction(tx_dict["hex"])
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dialog = QDialog(self)
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dialog.setMinimumWidth(500)
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dialog.setWindowTitle(_('Sign unsigned transaction'))
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dialog.setModal(1)
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vbox = QGridLayout()
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vbox = QVBoxLayout()
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dialog.setLayout(vbox)
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tx_information_widget = self.generate_transaction_information_widget(vbox, decoded_tx)
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vbox.addWidget( self.generate_transaction_information_widget(tx) )
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if tx["complete"] == True:
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if tx_dict["complete"] == True:
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vbox.addWidget(QLabel(_("This transaction is already signed.")))
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else:
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vbox.addWidget(EnterButton(_("Sign this transaction"), self.sign_raw_transaction))
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vbox.addWidget(QLabel(_("Create a signed transaction.")))
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vbox.addLayout(ok_cancel_buttons(dialog))
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input_info = json.loads(tx_dict["input_info"])
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if dialog.exec_():
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self.sign_raw_transaction(tx, input_info)
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if not dialog.exec_(): return
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def do_sign_from_text(self):
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tx, ok = QInputDialog.getText(QTextEdit(), _('Sign raw transaction'), _('Transaction data in JSON') + ':')
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txt, ok = QInputDialog.getText(QTextEdit(), _('Sign raw transaction'), _('Transaction data in JSON') + ':')
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if not ok:
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return
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tx_dict = self.tx_dict_from_text(unicode(txt))
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if tx_dict:
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self.create_sign_transaction_window(tx_dict)
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try:
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tx = json.loads(unicode(tx))
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except (ValueError, IOError, os.error), reason:
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QMessageBox.critical(None,"Unable to read transaction", _("Electrum was unable to read your transaction:") + "\n" + str(reason))
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self.create_sign_transaction_window(tx)
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def do_sign_from_file(self):
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try:
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fileName = QFileDialog.getOpenFileName(QWidget(), _("Select your transaction file"), os.path.expanduser('~'))
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if fileName:
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with open(fileName, "r") as transaction_file:
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tx = json.loads(transaction_file.read())
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self.create_sign_transaction_window(tx)
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except (ValueError, IOError, os.error), reason:
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QMessageBox.critical(None,"Unable to read file or no transaction found", _("Electrum was unable to read your transaction file") + "\n" + str(reason))
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tx_dict = self.read_tx_from_file()
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if tx_dict:
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self.create_sign_transaction_window(tx_dict)
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def send_raw_transaction(self):
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tx = Transaction(self.raw_tx["hex"])
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result, result_message = self.wallet.sendtx( tx )
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def send_raw_transaction(self, raw_tx):
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print "sending", raw_tx
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#result, result_message = self.wallet.sendtx( raw_tx )
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if result:
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self.show_message("Transaction succesfully sent: %s" % (result_message))
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else:
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self.show_message("There was a problem sending your transaction:\n %s" % (result_message))
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def create_send_transaction_window(self, tx):
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decoded_tx = Transaction(tx["hex"])
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decoded_tx = decoded_tx.deserialize()
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self.raw_tx = tx
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def create_send_transaction_window(self, tx_dict):
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tx = Transaction(tx_dict["hex"])
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dialog = QDialog(self)
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dialog.setMinimumWidth(500)
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dialog.setWindowTitle(_('Send raw transaction'))
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dialog.setModal(1)
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vbox = QGridLayout()
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vbox = QVBoxLayout()
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dialog.setLayout(vbox)
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tx_information_widget = self.generate_transaction_information_widget(vbox, decoded_tx)
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vbox.addWidget( self.generate_transaction_information_widget(tx))
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if tx["complete"] == False:
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if tx_dict["complete"] == False:
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vbox.addWidget(QLabel(_("This transaction is not signed yet.")))
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else:
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vbox.addWidget(EnterButton(_("Send this transaction"), self.send_raw_transaction))
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vbox.addWidget(QLabel(_("Broadcast this transaction")))
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vbox.addLayout(ok_cancel_buttons(dialog))
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if dialog.exec_():
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self.send_raw_transaction(tx_dict["hex"])
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if not dialog.exec_(): return
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def do_send_from_file(self):
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try:
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fileName = QFileDialog.getOpenFileName(QWidget(), _("Select your transaction file"), os.path.expanduser('~'))
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if fileName:
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with open(fileName, "r") as transaction_file:
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file_content = transaction_file.read()
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tx = json.loads(str(file_content))
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self.create_send_transaction_window(tx)
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except (ValueError, IOError, os.error), reason:
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QMessageBox.critical(None,"Unable to read file or no transaction found", _("Electrum was unable to read your transaction file") + "\n" + str(reason))
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tx_dict = self.read_tx_from_file()
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if tx_dict:
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self.create_send_transaction_window(tx_dict)
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def do_send_from_text(self):
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tx, ok = QInputDialog.getText(QTextEdit(), _('Send raw transaction'), _('Transaction data in JSON') + ':')
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txt, ok = QInputDialog.getText(QTextEdit(), _('Send raw transaction'), _('Transaction data in JSON') + ':')
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if not ok:
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return
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tx_dict = self.tx_dict_from_text(unicode(txt))
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if tx_dict:
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self.create_send_transaction_window(tx_dict)
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try:
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tx = json.loads(unicode(tx))
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except (ValueError, IOError, os.error), reason:
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QMessageBox.critical(None,"Unable to read transaction", _("Electrum was unable to read your transaction:") + "\n" + str(reason))
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self.create_send_transaction_window(tx)
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def do_export_privkeys(self):
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self.show_message("%s\n%s\n%s" % (_("WARNING: ALL your private keys are secret."), _("Exposing a single private key can compromise your entire wallet!"), _("In particular, DO NOT use 'redeem private key' services proposed by third parties.")))
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@ -2155,15 +2167,16 @@ class ElectrumWindow(QMainWindow):
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#grid_raw.addWidget(EnterButton(_("From text"), self.do_sign_from_text),3,2)
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#grid_raw.addWidget(HelpButton(_("This will show you some useful information about an unsigned transaction")),3,3)
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grid_raw.addWidget(QLabel(_("Send raw transaction")), 2, 0)
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if self.wallet.seed:
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grid_raw.addWidget(QLabel(_("Sign transaction")), 1, 0)
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grid_raw.addWidget(EnterButton(_("From file"), self.do_sign_from_file),1,1)
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grid_raw.addWidget(EnterButton(_("From text"), self.do_sign_from_text),1,2)
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grid_raw.addWidget(HelpButton(_("Sign an unsigned transaction generated by a watching-only wallet")),1,3)
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grid_raw.addWidget(QLabel(_("Send signed transaction")), 2, 0)
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grid_raw.addWidget(EnterButton(_("From file"), self.do_send_from_file),2,1)
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grid_raw.addWidget(EnterButton(_("From text"), self.do_send_from_text),2,2)
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grid_raw.addWidget(HelpButton(_("This will send a transaction.")),2,3)
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grid_raw.addWidget(QLabel(_("Sign transaction")), 1, 0)
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grid_raw.addWidget(EnterButton(_("From file"), self.do_sign_from_file),1,1)
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grid_raw.addWidget(EnterButton(_("From text"), self.do_sign_from_text),1,2)
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grid_raw.addWidget(HelpButton(_("This will sign an previously unsigned transaction")),1,3)
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grid_raw.addWidget(HelpButton(_("This will broadcast a transaction to the network.")),2,3)
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vbox.addLayout(ok_cancel_buttons(d))
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d.setLayout(vbox)
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