tWork in progress for message signing via classic gui - electrum - Electrum Bitcoin wallet
HTML git clone https://git.parazyd.org/electrum
DIR Log
DIR Files
DIR Refs
DIR Submodules
---
DIR commit 4a43126547b13ab5b1ac6535705978f700734eaf
DIR parent ea96b7999740a4d1dde42f734dba60d2e7d5fe79
HTML Author: Maran <maran.hidskes@gmail.com>
Date: Wed, 27 Feb 2013 15:58:46 +0100
Work in progress for message signing via classic gui
Diffstat:
M lib/gui_qt.py | 213 +++++++++++++++++++++++++++++--
1 file changed, 203 insertions(+), 10 deletions(-)
---
DIR diff --git a/lib/gui_qt.py b/lib/gui_qt.py
t@@ -19,7 +19,7 @@
import sys, time, datetime, re
from i18n import _
from util import print_error
-import os.path, json, util
+import os.path, json, util, ast
try:
import PyQt4
t@@ -38,6 +38,7 @@ except:
sys.exit("Error: Could not import icons_rc.py, please generate it with: 'pyrcc4 icons.qrc -o lib/icons_rc.py'")
from wallet import format_satoshis
+from bitcoin import Transaction
import bmp, mnemonic, pyqrnative, qrscanner
import exchange_rate
t@@ -790,6 +791,7 @@ class ElectrumWindow(QMainWindow):
grid.addWidget(QLabel(_('Description')), 2, 0)
grid.addWidget(self.message_e, 2, 1, 1, 3)
grid.addWidget(HelpButton(_('Description of the transaction (not mandatory).') + '\n\n' + _('The description is not sent to the recipient of the funds. It is stored in your wallet file, and displayed in the \'History\' tab.')), 2, 4)
+ self.message_e.setEnabled(False)
self.amount_e = QLineEdit()
grid.addWidget(QLabel(_('Amount')), 3, 0)
t@@ -805,8 +807,11 @@ class ElectrumWindow(QMainWindow):
_('Bitcoin transactions are in general not free. A transaction fee is paid by the sender of the funds.') + '\n\n'\
+ _('The amount of fee can be decided freely by the sender. However, transactions with low fees take more time to be processed.') + '\n\n'\
+ _('A suggested fee is automatically added to this field. You may override it. The suggested fee increases with the size of the transaction.')), 4, 3)
-
- b = EnterButton(_("Send"), self.do_send)
+ b = ''
+ if self.wallet.seed:
+ b = EnterButton(_("Send"), self.do_send)
+ else:
+ b = EnterButton(_("Create unsigned transaction"), self.do_send)
grid.addWidget(b, 6, 1)
b = EnterButton(_("Clear"),self.do_clear)
t@@ -928,13 +933,18 @@ class ElectrumWindow(QMainWindow):
else:
QMessageBox.warning(self, _('Error'), msg, _('OK'))
else:
- filename = 'unsigned_tx'
- f = open(filename,'w')
- import json
- out = json.dumps({"hex":str(tx), "complete":tx.is_complete, 'input_info':repr(tx.input_info).replace(' ','')}, indent=4)
- f.write(out + '\n')
- f.close()
- QMessageBox.information(self, _('Unsigned transaction'), _("Unsigned transaction was saved to file:") + " " +filename, _('OK'))
+ filename = 'unsigned_tx_%s' % (time.mktime(time.gmtime()))
+
+ try:
+ fileName = QFileDialog.getSaveFileName(QWidget(), _("Select a transaction filename"), os.path.expanduser('~/%s' % (filename)))
+ f = open(fileName,'w')
+ import json
+ out = json.dumps({"hex":str(tx), "complete":tx.is_complete, 'input_info':repr(tx.input_info).replace(' ','')}, indent=4)
+ f.write(out + '\n')
+ f.close()
+ QMessageBox.information(self, _('Unsigned transaction created'), _("Unsigned transaction was saved to file:") + " " +filename, _('OK'))
+ except:
+ QMessageBox.warning(self, _('Error'), _('Could not write transaction to file'), _('OK'))
def set_url(self, url):
t@@ -1746,6 +1756,168 @@ class ElectrumWindow(QMainWindow):
return seed, gap
+ def generate_transaction_information_widget(self,layout, decoded_tx):
+ tabs = QTabWidget(self)
+ layout.addWidget(tabs)
+
+ tab1 = QWidget()
+ grid_ui = QGridLayout(tab1)
+ grid_ui.setColumnStretch(0,1)
+ tabs.addTab(tab1, _('Outputs') )
+
+
+ tree_widget = MyTreeWidget(self)
+ tree_widget.setColumnCount(2)
+ tree_widget.setHeaderLabels( [_('Address'), _('Amount')] )
+ tree_widget.setColumnWidth(0, 300)
+ tree_widget.setColumnWidth(1, 50)
+
+ for output in decoded_tx["outputs"]:
+ item = QTreeWidgetItem( ["%s" %(output["address"]), "%s" % ( format_satoshis(output["value"]))] )
+ tree_widget.addTopLevelItem(item)
+
+ tree_widget.setMaximumHeight(100)
+
+ grid_ui.addWidget(tree_widget)
+
+
+ tab2 = QWidget()
+ grid_ui = QGridLayout(tab2)
+ grid_ui.setColumnStretch(0,1)
+ tabs.addTab(tab2, _('Inputs') )
+
+
+ tree_widget = MyTreeWidget(self)
+ tree_widget.setColumnCount(2)
+ tree_widget.setHeaderLabels( [_('Sequence'), _('Address'), _('Previous output')] )
+
+ for input_line in decoded_tx["inputs"]:
+ item = QTreeWidgetItem( [str(input_line["sequence"]), str(input_line["address"]), str(input_line["prevout_hash"])] )
+ tree_widget.addTopLevelItem(item)
+
+ tree_widget.setMaximumHeight(100)
+
+ grid_ui.addWidget(tree_widget)
+
+
+ def sign_raw_transaction(self):
+ input_info = ast.literal_eval(self.raw_tx["input_info"])
+ tx = Transaction(self.raw_tx["hex"])
+
+ if self.wallet.use_encryption:
+ password = self.password_dialog()
+ if not password:
+ return
+ else:
+ password = None
+
+ try:
+ self.wallet.signrawtransaction(tx, input_info, [], password)
+
+ fileName = QFileDialog.getSaveFileName(QWidget(), _("Select where to save your signed transaction"), os.path.expanduser('~/%s' % (tx.hash())))
+ tx_hash = tx.as_dict()
+ if fileName:
+ with open(fileName, "w+") as transaction_file:
+ transaction_file.write(str(json.dumps(tx_hash)))
+ self.show_message("Transaction signed succesfully")
+ except BaseException, e:
+ self.show_message(str(e))
+ return
+
+ def create_sign_transaction_window(self, tx):
+ decoded_tx = Transaction(tx["hex"])
+ decoded_tx = decoded_tx.deserialize()
+ self.raw_tx = tx
+
+ dialog = QDialog(self)
+ dialog.setMinimumWidth(500)
+ dialog.setWindowTitle(_('Sign unsigned transaction'))
+ dialog.setModal(1)
+
+ vbox = QGridLayout()
+ dialog.setLayout(vbox)
+ tx_information_widget = self.generate_transaction_information_widget(vbox, decoded_tx)
+
+ if tx["complete"] == True:
+ vbox.addWidget(QLabel(_("This transaction is already signed.")))
+ else:
+ vbox.addWidget(EnterButton(_("Sign this transaction"), self.sign_raw_transaction))
+
+ if not dialog.exec_(): return
+
+ def do_sign_from_text(self):
+ tx, ok = QInputDialog.getText(QTextEdit(), _('Sign raw transaction'), _('Transaction data in JSON') + ':')
+
+ try:
+ tx = json.loads(unicode(tx))
+ except (ValueError, IOError, os.error), reason:
+ QMessageBox.critical(None,"Unable to read transaction", _("Electrum was unable to read your transaction:") + "\n" + str(reason))
+
+ self.create_sign_transaction_window(tx)
+
+ def do_sign_from_file(self):
+ try:
+ fileName = QFileDialog.getOpenFileName(QWidget(), _("Select your transaction file"), os.path.expanduser('~'))
+ if fileName:
+ with open(fileName, "r") as transaction_file:
+ tx = json.loads(transaction_file.read())
+ self.create_sign_transaction_window(tx)
+
+ except (ValueError, IOError, os.error), reason:
+ QMessageBox.critical(None,"Unable to read file or no transaction found", _("Electrum was unable to read your transaction file") + "\n" + str(reason))
+
+ def send_raw_transaction(self):
+ tx = Transaction(self.raw_tx["hex"])
+ result, result_message = self.wallet.sendtx( tx )
+ if result:
+ self.show_message("Transaction succesfully sent: %s" % (result_message))
+ else:
+ self.show_message("There was a problem sending your transaction:\n %s" % (result_message))
+
+ def create_send_transaction_window(self, tx):
+ decoded_tx = Transaction(tx["hex"])
+ decoded_tx = decoded_tx.deserialize()
+ self.raw_tx = tx
+
+ dialog = QDialog(self)
+ dialog.setMinimumWidth(500)
+ dialog.setWindowTitle(_('Send raw transaction'))
+ dialog.setModal(1)
+
+ vbox = QGridLayout()
+ dialog.setLayout(vbox)
+ tx_information_widget = self.generate_transaction_information_widget(vbox, decoded_tx)
+
+ if tx["complete"] == False:
+ vbox.addWidget(QLabel(_("This transaction is not signed yet.")))
+ else:
+ vbox.addWidget(EnterButton(_("Send this transaction"), self.send_raw_transaction))
+
+ if not dialog.exec_(): return
+
+ def do_send_from_file(self):
+ try:
+ fileName = QFileDialog.getOpenFileName(QWidget(), _("Select your transaction file"), os.path.expanduser('~'))
+ if fileName:
+ with open(fileName, "r") as transaction_file:
+ file_content = transaction_file.read()
+ print file_content
+ tx = json.loads(str(file_content))
+ self.create_send_transaction_window(tx)
+
+ except (ValueError, IOError, os.error), reason:
+ QMessageBox.critical(None,"Unable to read file or no transaction found", _("Electrum was unable to read your transaction file") + "\n" + str(reason))
+
+ def do_send_from_text(self):
+ tx, ok = QInputDialog.getText(QTextEdit(), _('Send raw transaction'), _('Transaction data in JSON') + ':')
+
+ try:
+ tx = json.loads(unicode(tx))
+ except (ValueError, IOError, os.error), reason:
+ QMessageBox.critical(None,"Unable to read transaction", _("Electrum was unable to read your transaction:") + "\n" + str(reason))
+
+ self.create_send_transaction_window(tx)
+
def do_export_privkeys(self):
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.")))
t@@ -1979,6 +2151,27 @@ class ElectrumWindow(QMainWindow):
+ _('If you restore your wallet from it, a watching-only (deseeded) wallet will be created.')), 4, 3)
grid_io.setRowStretch(4,1)
+
+ tab4 = QWidget()
+ grid_raw = QGridLayout(tab4)
+ grid_raw.setColumnStretch(0,1)
+ tabs.addTab(tab4, _('Raw transactions') )
+ #
+ #grid_raw.addWidget(QLabel(_("Read raw transaction")), 3, 0)
+ #grid_raw.addWidget(EnterButton(_("From file"), self.do_sign_from_file),3,1)
+ #grid_raw.addWidget(EnterButton(_("From text"), self.do_sign_from_text),3,2)
+ #grid_raw.addWidget(HelpButton(_("This will show you some useful information about an unsigned transaction")),3,3)
+
+ grid_raw.addWidget(QLabel(_("Send raw transaction")), 2, 0)
+ grid_raw.addWidget(EnterButton(_("From file"), self.do_send_from_file),2,1)
+ grid_raw.addWidget(EnterButton(_("From text"), self.do_send_from_text),2,2)
+ grid_raw.addWidget(HelpButton(_("This will send a transaction.")),2,3)
+
+ grid_raw.addWidget(QLabel(_("Sign transaction")), 1, 0)
+ grid_raw.addWidget(EnterButton(_("From file"), self.do_sign_from_file),1,1)
+ grid_raw.addWidget(EnterButton(_("From text"), self.do_sign_from_text),1,2)
+ grid_raw.addWidget(HelpButton(_("This will sign an previously unsigned transaction")),1,3)
+
vbox.addLayout(ok_cancel_buttons(d))
d.setLayout(vbox)