gui/qt/main_window.py

   1 #!/usr/bin/env python
   2 #
   3 # Electrum - lightweight Bitcoin client
   4 # Copyright (C) 2012 thomasv@gitorious
   5 #
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
  18
  19 import sys, time, datetime, re, threading
  20 from electrum.i18n import _, set_language
  21 from electrum.util import print_error, print_msg
  22 import os.path, json, ast, traceback
  23 import webbrowser
  24 import shutil
  25 import StringIO
  26
  27
  28 import PyQt4
  29 from PyQt4.QtGui import *
  30 from PyQt4.QtCore import *
  31 import PyQt4.QtCore as QtCore
  32
  33 from electrum.bitcoin import MIN_RELAY_TX_FEE, is_valid
  34 from electrum.plugins import run_hook
  35
  36 import icons_rc
  37
  38 from electrum.wallet import format_satoshis
  39 from electrum import Transaction
  40 from electrum import mnemonic
  41 from electrum import util, bitcoin, commands, Interface, Wallet
  42 from electrum import SimpleConfig, Wallet, WalletStorage
  43
  44
  45 from electrum import bmp, pyqrnative
  46
  47 from amountedit import AmountEdit
  48 from network_dialog import NetworkDialog
  49 from qrcodewidget import QRCodeWidget
  50
  51 from decimal import Decimal
  52
  53 import platform
  54 import httplib
  55 import socket
  56 import webbrowser
  57 import csv
  58
  59 if platform.system() == 'Windows':
  60     MONOSPACE_FONT = 'Lucida Console'
  61 elif platform.system() == 'Darwin':
  62     MONOSPACE_FONT = 'Monaco'
  63 else:
  64     MONOSPACE_FONT = 'monospace'
  65
  66 from electrum import ELECTRUM_VERSION
  67 import re
  68
  69 from util import *
  70
  71
  72
  73
  74
  75
  76 class StatusBarButton(QPushButton):
  77     def __init__(self, icon, tooltip, func):
  78         QPushButton.__init__(self, icon, '')
  79         self.setToolTip(tooltip)
  80         self.setFlat(True)
  81         self.setMaximumWidth(25)
  82         self.clicked.connect(func)
  83         self.func = func
  84         self.setIconSize(QSize(25,25))
  85
  86     def keyPressEvent(self, e):
  87         if e.key() == QtCore.Qt.Key_Return:
  88             apply(self.func,())
  89
  90
  91
  92
  93
  94
  95
  96
  97
  98
  99 default_column_widths = { "history":[40,140,350,140], "contacts":[350,330], "receive": [370,200,130] }
 100
 101 class ElectrumWindow(QMainWindow):
 102
 103
 104
 105     def __init__(self, config, network, gui_object):
 106         QMainWindow.__init__(self)
 107
 108         self.config = config
 109         self.network = network
 110         self.gui_object = gui_object
 111         self.tray = gui_object.tray
 112         self.go_lite = gui_object.go_lite
 113         self.lite = None
 114
 115         self.create_status_bar()
 116         self.need_update = threading.Event()
 117
 118         self.decimal_point = config.get('decimal_point', 5)
 119         self.num_zeros     = int(config.get('num_zeros',0))
 120
 121         set_language(config.get('language'))
 122
 123         self.funds_error = False
 124         self.completions = QStringListModel()
 125
 126         self.tabs = tabs = QTabWidget(self)
 127         self.column_widths = self.config.get("column_widths_2", default_column_widths )
 128         tabs.addTab(self.create_history_tab(), _('History') )
 129         tabs.addTab(self.create_send_tab(), _('Send') )
 130         tabs.addTab(self.create_receive_tab(), _('Receive') )
 131         tabs.addTab(self.create_contacts_tab(), _('Contacts') )
 132         tabs.addTab(self.create_console_tab(), _('Console') )
 133         tabs.setMinimumSize(600, 400)
 134         tabs.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
 135         self.setCentralWidget(tabs)
 136
 137         g = self.config.get("winpos-qt",[100, 100, 840, 400])
 138         self.setGeometry(g[0], g[1], g[2], g[3])
 139         if self.config.get("is_maximized"):
 140             self.showMaximized()
 141
 142         self.setWindowIcon(QIcon(":icons/electrum.png"))
 143         self.init_menubar()
 144
 145         QShortcut(QKeySequence("Ctrl+W"), self, self.close)
 146         QShortcut(QKeySequence("Ctrl+Q"), self, self.close)
 147         QShortcut(QKeySequence("Ctrl+R"), self, self.update_wallet)
 148         QShortcut(QKeySequence("Ctrl+PgUp"), self, lambda: tabs.setCurrentIndex( (tabs.currentIndex() - 1 )%tabs.count() ))
 149         QShortcut(QKeySequence("Ctrl+PgDown"), self, lambda: tabs.setCurrentIndex( (tabs.currentIndex() + 1 )%tabs.count() ))
 150
 151         for i in range(tabs.count()):
 152             QShortcut(QKeySequence("Alt+" + str(i + 1)), self, lambda i=i: tabs.setCurrentIndex(i))
 153
 154         self.connect(self, QtCore.SIGNAL('update_status'), self.update_status)
 155         self.connect(self, QtCore.SIGNAL('banner_signal'), lambda: self.console.showMessage(self.network.banner) )
 156         self.connect(self, QtCore.SIGNAL('transaction_signal'), lambda: self.notify_transactions() )
 157         self.connect(self, QtCore.SIGNAL('payment_request_ok'), self.payment_request_ok)
 158         self.connect(self, QtCore.SIGNAL('payment_request_error'), self.payment_request_error)
 159
 160         self.history_list.setFocus(True)
 161
 162         # network callbacks
 163         if self.network:
 164             self.network.register_callback('updated', lambda: self.need_update.set())
 165             self.network.register_callback('banner', lambda: self.emit(QtCore.SIGNAL('banner_signal')))
 166             self.network.register_callback('disconnected', lambda: self.emit(QtCore.SIGNAL('update_status')))
 167             self.network.register_callback('disconnecting', lambda: self.emit(QtCore.SIGNAL('update_status')))
 168             self.network.register_callback('new_transaction', lambda: self.emit(QtCore.SIGNAL('transaction_signal')))
 169
 170             # set initial message
 171             self.console.showMessage(self.network.banner)
 172
 173         self.wallet = None
 174
 175
 176     def update_account_selector(self):
 177         # account selector
 178         accounts = self.wallet.get_account_names()
 179         self.account_selector.clear()
 180         if len(accounts) > 1:
 181             self.account_selector.addItems([_("All accounts")] + accounts.values())
 182             self.account_selector.setCurrentIndex(0)
 183             self.account_selector.show()
 184         else:
 185             self.account_selector.hide()
 186
 187
 188     def load_wallet(self, wallet):
 189         import electrum
 190         self.wallet = wallet
 191         self.accounts_expanded = self.wallet.storage.get('accounts_expanded',{})
 192         self.current_account = self.wallet.storage.get("current_account", None)
 193
 194         title = 'Electrum ' + self.wallet.electrum_version + '  -  ' + self.wallet.storage.path
 195         if self.wallet.is_watching_only(): title += ' [%s]' % (_('watching only'))
 196         self.setWindowTitle( title )
 197         self.update_wallet()
 198         # Once GUI has been initialized check if we want to announce something since the callback has been called before the GUI was initialized
 199         self.notify_transactions()
 200         self.update_account_selector()
 201         # update menus
 202         self.new_account_menu.setEnabled(self.wallet.can_create_accounts())
 203         self.private_keys_menu.setEnabled(not self.wallet.is_watching_only())
 204         self.password_menu.setEnabled(not self.wallet.is_watching_only())
 205         self.seed_menu.setEnabled(self.wallet.has_seed())
 206         self.mpk_menu.setEnabled(self.wallet.is_deterministic())
 207         self.import_menu.setEnabled(self.wallet.can_import())
 208
 209         self.update_lock_icon()
 210         self.update_buttons_on_seed()
 211         self.update_console()
 212
 213         run_hook('load_wallet', wallet)
 214
 215
 216     def open_wallet(self):
 217         wallet_folder = self.wallet.storage.path
 218         filename = unicode( QFileDialog.getOpenFileName(self, "Select your wallet file", wallet_folder) )
 219         if not filename:
 220             return
 221
 222         storage = WalletStorage({'wallet_path': filename})
 223         if not storage.file_exists:
 224             self.show_message("file not found "+ filename)
 225             return
 226
 227         self.wallet.stop_threads()
 228
 229         # create new wallet
 230         wallet = Wallet(storage)
 231         wallet.start_threads(self.network)
 232
 233         self.load_wallet(wallet)
 234
 235
 236
 237     def backup_wallet(self):
 238         import shutil
 239         path = self.wallet.storage.path
 240         wallet_folder = os.path.dirname(path)
 241         filename = unicode( QFileDialog.getSaveFileName(self, _('Enter a filename for the copy of your wallet'), wallet_folder) )
 242         if not filename:
 243             return
 244
 245         new_path = os.path.join(wallet_folder, filename)
 246         if new_path != path:
 247             try:
 248                 shutil.copy2(path, new_path)
 249                 QMessageBox.information(None,"Wallet backup created", _("A copy of your wallet file was created in")+" '%s'" % str(new_path))
 250             except (IOError, os.error), reason:
 251                 QMessageBox.critical(None,"Unable to create backup", _("Electrum was unable to copy your wallet file to the specified location.")+"\n" + str(reason))
 252
 253
 254     def new_wallet(self):
 255         import installwizard
 256
 257         wallet_folder = os.path.dirname(self.wallet.storage.path)
 258         filename = unicode( QFileDialog.getSaveFileName(self, _('Enter a new file name'), wallet_folder) )
 259         if not filename:
 260             return
 261         filename = os.path.join(wallet_folder, filename)
 262
 263         storage = WalletStorage({'wallet_path': filename})
 264         if storage.file_exists:
 265             QMessageBox.critical(None, "Error", _("File exists"))
 266             return
 267
 268         wizard = installwizard.InstallWizard(self.config, self.network, storage)
 269         wallet = wizard.run('new')
 270         if wallet:
 271             self.load_wallet(wallet)
 272
 273
 274
 275     def init_menubar(self):
 276         menubar = QMenuBar()
 277
 278         file_menu = menubar.addMenu(_("&File"))
 279         file_menu.addAction(_("&Open"), self.open_wallet).setShortcut(QKeySequence.Open)
 280         file_menu.addAction(_("&New/Restore"), self.new_wallet).setShortcut(QKeySequence.New)
 281         file_menu.addAction(_("&Save Copy"), self.backup_wallet).setShortcut(QKeySequence.SaveAs)
 282         file_menu.addAction(_("&Quit"), self.close)
 283
 284         wallet_menu = menubar.addMenu(_("&Wallet"))
 285         wallet_menu.addAction(_("&New contact"), self.new_contact_dialog)
 286         self.new_account_menu = wallet_menu.addAction(_("&New account"), self.new_account_dialog)
 287
 288         wallet_menu.addSeparator()
 289
 290         self.password_menu = wallet_menu.addAction(_("&Password"), self.change_password_dialog)
 291         self.seed_menu = wallet_menu.addAction(_("&Seed"), self.show_seed_dialog)
 292         self.mpk_menu = wallet_menu.addAction(_("&Master Public Keys"), self.show_master_public_keys)
 293
 294         wallet_menu.addSeparator()
 295         labels_menu = wallet_menu.addMenu(_("&Labels"))
 296         labels_menu.addAction(_("&Import"), self.do_import_labels)
 297         labels_menu.addAction(_("&Export"), self.do_export_labels)
 298
 299         self.private_keys_menu = wallet_menu.addMenu(_("&Private keys"))
 300         self.private_keys_menu.addAction(_("&Sweep"), self.sweep_key_dialog)
 301         self.import_menu = self.private_keys_menu.addAction(_("&Import"), self.do_import_privkey)
 302         self.private_keys_menu.addAction(_("&Export"), self.export_privkeys_dialog)
 303         wallet_menu.addAction(_("&Export History"), self.export_history_dialog)
 304
 305         tools_menu = menubar.addMenu(_("&Tools"))
 306
 307         # Settings / Preferences are all reserved keywords in OSX using this as work around
 308         tools_menu.addAction(_("Electrum preferences") if sys.platform == 'darwin' else _("Preferences"), self.settings_dialog)
 309         tools_menu.addAction(_("&Network"), self.run_network_dialog)
 310         tools_menu.addAction(_("&Plugins"), self.plugins_dialog)
 311         tools_menu.addSeparator()
 312         tools_menu.addAction(_("&Sign/verify message"), self.sign_verify_message)
 313         #tools_menu.addAction(_("&Encrypt/decrypt message"), self.encrypt_message)
 314         tools_menu.addSeparator()
 315
 316         csv_transaction_menu = tools_menu.addMenu(_("&Create transaction"))
 317         csv_transaction_menu.addAction(_("&From CSV file"), self.do_process_from_csv_file)
 318         csv_transaction_menu.addAction(_("&From CSV text"), self.do_process_from_csv_text)
 319
 320         raw_transaction_menu = tools_menu.addMenu(_("&Load transaction"))
 321         raw_transaction_menu.addAction(_("&From file"), self.do_process_from_file)
 322         raw_transaction_menu.addAction(_("&From text"), self.do_process_from_text)
 323         raw_transaction_menu.addAction(_("&From the blockchain"), self.do_process_from_txid)
 324
 325         help_menu = menubar.addMenu(_("&Help"))
 326         help_menu.addAction(_("&About"), self.show_about)
 327         help_menu.addAction(_("&Official website"), lambda: webbrowser.open("http://electrum.org"))
 328         help_menu.addSeparator()
 329         help_menu.addAction(_("&Documentation"), lambda: webbrowser.open("http://electrum.org/documentation.html")).setShortcut(QKeySequence.HelpContents)
 330         help_menu.addAction(_("&Report Bug"), self.show_report_bug)
 331
 332         self.setMenuBar(menubar)
 333
 334     def show_about(self):
 335         QMessageBox.about(self, "Electrum",
 336             _("Version")+" %s" % (self.wallet.electrum_version) + "\n\n" + _("Electrum's focus is speed, with low resource usage and simplifying Bitcoin. You do not need to perform regular backups, because your wallet can be recovered from a secret phrase that you can memorize or write on paper. Startup times are instant because it operates in conjunction with high-performance servers that handle the most complicated parts of the Bitcoin system."))
 337
 338     def show_report_bug(self):
 339         QMessageBox.information(self, "Electrum - " + _("Reporting Bugs"),
 340             _("Please report any bugs as issues on github:")+" <a href=\"https://github.com/spesmilo/electrum/issues\">https://github.com/spesmilo/electrum/issues</a>")
 341
 342
 343     def notify_transactions(self):
 344         if not self.network or not self.network.is_connected():
 345             return
 346
 347         print_error("Notifying GUI")
 348         if len(self.network.pending_transactions_for_notifications) > 0:
 349             # Combine the transactions if there are more then three
 350             tx_amount = len(self.network.pending_transactions_for_notifications)
 351             if(tx_amount >= 3):
 352                 total_amount = 0
 353                 for tx in self.network.pending_transactions_for_notifications:
 354                     is_relevant, is_mine, v, fee = self.wallet.get_tx_value(tx)
 355                     if(v > 0):
 356                         total_amount += v
 357
 358                 self.notify(_("%(txs)s new transactions received. Total amount received in the new transactions %(amount)s %(unit)s") \
 359                                 % { 'txs' : tx_amount, 'amount' : self.format_amount(total_amount), 'unit' : self.base_unit()})
 360
 361                 self.network.pending_transactions_for_notifications = []
 362             else:
 363               for tx in self.network.pending_transactions_for_notifications:
 364                   if tx:
 365                       self.network.pending_transactions_for_notifications.remove(tx)
 366                       is_relevant, is_mine, v, fee = self.wallet.get_tx_value(tx)
 367                       if(v > 0):
 368                           self.notify(_("New transaction received. %(amount)s %(unit)s") % { 'amount' : self.format_amount(v), 'unit' : self.base_unit()})
 369
 370     def notify(self, message):
 371         self.tray.showMessage("Electrum", message, QSystemTrayIcon.Information, 20000)
 372
 373
 374
 375     # custom wrappers for getOpenFileName and getSaveFileName, that remember the path selected by the user
 376     def getOpenFileName(self, title, filter = ""):
 377         directory = self.config.get('io_dir', unicode(os.path.expanduser('~')))
 378         fileName = unicode( QFileDialog.getOpenFileName(self, title, directory, filter) )
 379         if fileName and directory != os.path.dirname(fileName):
 380             self.config.set_key('io_dir', os.path.dirname(fileName), True)
 381         return fileName
 382
 383     def getSaveFileName(self, title, filename, filter = ""):
 384         directory = self.config.get('io_dir', unicode(os.path.expanduser('~')))
 385         path = os.path.join( directory, filename )
 386         fileName = unicode( QFileDialog.getSaveFileName(self, title, path, filter) )
 387         if fileName and directory != os.path.dirname(fileName):
 388             self.config.set_key('io_dir', os.path.dirname(fileName), True)
 389         return fileName
 390
 391     def close(self):
 392         QMainWindow.close(self)
 393         run_hook('close_main_window')
 394
 395     def connect_slots(self, sender):
 396         self.connect(sender, QtCore.SIGNAL('timersignal'), self.timer_actions)
 397         self.previous_payto_e=''
 398
 399     def timer_actions(self):
 400         if self.need_update.is_set():
 401             self.update_wallet()
 402             self.need_update.clear()
 403         run_hook('timer_actions')
 404
 405     def format_amount(self, x, is_diff=False, whitespaces=False):
 406         return format_satoshis(x, is_diff, self.num_zeros, self.decimal_point, whitespaces)
 407
 408     def read_amount(self, x):
 409         if x in['.', '']: return None
 410         p = pow(10, self.decimal_point)
 411         return int( p * Decimal(x) )
 412
 413     def base_unit(self):
 414         assert self.decimal_point in [5,8]
 415         return "BTC" if self.decimal_point == 8 else "mBTC"
 416
 417
 418     def update_status(self):
 419         if self.network is None or not self.network.is_running():
 420             text = _("Offline")
 421             icon = QIcon(":icons/status_disconnected.png")
 422
 423         elif self.network.is_connected():
 424             if not self.wallet.up_to_date:
 425                 text = _("Synchronizing...")
 426                 icon = QIcon(":icons/status_waiting.png")
 427             elif self.network.server_lag > 1:
 428                 text = _("Server is lagging (%d blocks)"%self.network.server_lag)
 429                 icon = QIcon(":icons/status_lagging.png")
 430             else:
 431                 c, u = self.wallet.get_account_balance(self.current_account)
 432                 text =  _( "Balance" ) + ": %s "%( self.format_amount(c) ) + self.base_unit()
 433                 if u: text +=  " [%s unconfirmed]"%( self.format_amount(u,True).strip() )
 434
 435                 # append fiat balance and price from exchange rate plugin
 436                 r = {}
 437                 run_hook('get_fiat_status_text', c+u, r)
 438                 quote = r.get(0)
 439                 if quote:
 440                     text += "%s"%quote
 441
 442                 self.tray.setToolTip(text)
 443                 icon = QIcon(":icons/status_connected.png")
 444         else:
 445             text = _("Not connected")
 446             icon = QIcon(":icons/status_disconnected.png")
 447
 448         self.balance_label.setText(text)
 449         self.status_button.setIcon( icon )
 450
 451
 452     def update_wallet(self):
 453         self.update_status()
 454         if self.wallet.up_to_date or not self.network or not self.network.is_connected():
 455             self.update_history_tab()
 456             self.update_receive_tab()
 457             self.update_contacts_tab()
 458             self.update_completions()
 459
 460
 461     def create_history_tab(self):
 462         self.history_list = l = MyTreeWidget(self)
 463         l.setColumnCount(5)
 464         for i,width in enumerate(self.column_widths['history']):
 465             l.setColumnWidth(i, width)
 466         l.setHeaderLabels( [ '', _('Date'), _('Description') , _('Amount'), _('Balance')] )
 467         self.connect(l, SIGNAL('itemDoubleClicked(QTreeWidgetItem*, int)'), self.tx_label_clicked)
 468         self.connect(l, SIGNAL('itemChanged(QTreeWidgetItem*, int)'), self.tx_label_changed)
 469
 470         l.customContextMenuRequested.connect(self.create_history_menu)
 471         return l
 472
 473
 474     def create_history_menu(self, position):
 475         self.history_list.selectedIndexes()
 476         item = self.history_list.currentItem()
 477         be = self.config.get('block_explorer', 'Blockchain.info')
 478         if be == 'Blockchain.info':
 479             block_explorer = 'https://blockchain.info/tx/'
 480         elif be == 'Blockr.io':
 481             block_explorer = 'https://blockr.io/tx/info/'
 482         elif be == 'Insight.is':
 483             block_explorer = 'http://live.insight.is/tx/'
 484         if not item: return
 485         tx_hash = str(item.data(0, Qt.UserRole).toString())
 486         if not tx_hash: return
 487         menu = QMenu()
 488         menu.addAction(_("Copy ID to Clipboard"), lambda: self.app.clipboard().setText(tx_hash))
 489         menu.addAction(_("Details"), lambda: self.show_transaction(self.wallet.transactions.get(tx_hash)))
 490         menu.addAction(_("Edit description"), lambda: self.tx_label_clicked(item,2))
 491         menu.addAction(_("View on block explorer"), lambda: webbrowser.open(block_explorer + tx_hash))
 492         menu.exec_(self.contacts_list.viewport().mapToGlobal(position))
 493
 494
 495     def show_transaction(self, tx):
 496         import transaction_dialog
 497         d = transaction_dialog.TxDialog(tx, self)
 498         d.exec_()
 499
 500     def tx_label_clicked(self, item, column):
 501         if column==2 and item.isSelected():
 502             self.is_edit=True
 503             item.setFlags(Qt.ItemIsEditable|Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 504             self.history_list.editItem( item, column )
 505             item.setFlags(Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 506             self.is_edit=False
 507
 508     def tx_label_changed(self, item, column):
 509         if self.is_edit:
 510             return
 511         self.is_edit=True
 512         tx_hash = str(item.data(0, Qt.UserRole).toString())
 513         tx = self.wallet.transactions.get(tx_hash)
 514         text = unicode( item.text(2) )
 515         self.wallet.set_label(tx_hash, text)
 516         if text:
 517             item.setForeground(2, QBrush(QColor('black')))
 518         else:
 519             text = self.wallet.get_default_label(tx_hash)
 520             item.setText(2, text)
 521             item.setForeground(2, QBrush(QColor('gray')))
 522         self.is_edit=False
 523
 524
 525     def edit_label(self, is_recv):
 526         l = self.receive_list if is_recv else self.contacts_list
 527         item = l.currentItem()
 528         item.setFlags(Qt.ItemIsEditable|Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 529         l.editItem( item, 1 )
 530         item.setFlags(Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 531
 532
 533
 534     def address_label_clicked(self, item, column, l, column_addr, column_label):
 535         if column == column_label and item.isSelected():
 536             is_editable = item.data(0, 32).toBool()
 537             if not is_editable:
 538                 return
 539             addr = unicode( item.text(column_addr) )
 540             label = unicode( item.text(column_label) )
 541             item.setFlags(Qt.ItemIsEditable|Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 542             l.editItem( item, column )
 543             item.setFlags(Qt.ItemIsSelectable | Qt.ItemIsUserCheckable | Qt.ItemIsEnabled | Qt.ItemIsDragEnabled)
 544
 545
 546     def address_label_changed(self, item, column, l, column_addr, column_label):
 547         if column == column_label:
 548             addr = unicode( item.text(column_addr) )
 549             text = unicode( item.text(column_label) )
 550             is_editable = item.data(0, 32).toBool()
 551             if not is_editable:
 552                 return
 553
 554             changed = self.wallet.set_label(addr, text)
 555             if changed:
 556                 self.update_history_tab()
 557                 self.update_completions()
 558
 559             self.current_item_changed(item)
 560
 561         run_hook('item_changed', item, column)
 562
 563
 564     def current_item_changed(self, a):
 565         run_hook('current_item_changed', a)
 566
 567
 568
 569     def update_history_tab(self):
 570
 571         self.history_list.clear()
 572         for item in self.wallet.get_tx_history(self.current_account):
 573             tx_hash, conf, is_mine, value, fee, balance, timestamp = item
 574             time_str = _("unknown")
 575             if conf > 0:
 576                 try:
 577                     time_str = datetime.datetime.fromtimestamp( timestamp).isoformat(' ')[:-3]
 578                 except Exception:
 579                     time_str = _("error")
 580
 581             if conf == -1:
 582                 time_str = 'unverified'
 583                 icon = QIcon(":icons/unconfirmed.png")
 584             elif conf == 0:
 585                 time_str = 'pending'
 586                 icon = QIcon(":icons/unconfirmed.png")
 587             elif conf < 6:
 588                 icon = QIcon(":icons/clock%d.png"%conf)
 589             else:
 590                 icon = QIcon(":icons/confirmed.png")
 591
 592             if value is not None:
 593                 v_str = self.format_amount(value, True, whitespaces=True)
 594             else:
 595                 v_str = '--'
 596
 597             balance_str = self.format_amount(balance, whitespaces=True)
 598
 599             if tx_hash:
 600                 label, is_default_label = self.wallet.get_label(tx_hash)
 601             else:
 602                 label = _('Pruned transaction outputs')
 603                 is_default_label = False
 604
 605             item = QTreeWidgetItem( [ '', time_str, label, v_str, balance_str] )
 606             item.setFont(2, QFont(MONOSPACE_FONT))
 607             item.setFont(3, QFont(MONOSPACE_FONT))
 608             item.setFont(4, QFont(MONOSPACE_FONT))
 609             if value < 0:
 610                 item.setForeground(3, QBrush(QColor("#BC1E1E")))
 611             if tx_hash:
 612                 item.setData(0, Qt.UserRole, tx_hash)
 613                 item.setToolTip(0, "%d %s\nTxId:%s" % (conf, _('Confirmations'), tx_hash) )
 614             if is_default_label:
 615                 item.setForeground(2, QBrush(QColor('grey')))
 616
 617             item.setIcon(0, icon)
 618             self.history_list.insertTopLevelItem(0,item)
 619
 620
 621         self.history_list.setCurrentItem(self.history_list.topLevelItem(0))
 622         run_hook('history_tab_update')
 623
 624
 625     def create_send_tab(self):
 626         w = QWidget()
 627
 628         grid = QGridLayout()
 629         grid.setSpacing(8)
 630         grid.setColumnMinimumWidth(3,300)
 631         grid.setColumnStretch(5,1)
 632
 633
 634         self.payto_e = QLineEdit()
 635         self.payto_help = HelpButton(_('Recipient of the funds.') + '\n\n' + _('You may enter a Bitcoin address, a label from your list of contacts (a list of completions will be proposed), or an alias (email-like address that forwards to a Bitcoin address)'))
 636         grid.addWidget(QLabel(_('Pay to')), 1, 0)
 637         grid.addWidget(self.payto_e, 1, 1, 1, 3)
 638         grid.addWidget(self.payto_help, 1, 4)
 639
 640         completer = QCompleter()
 641         completer.setCaseSensitivity(False)
 642         self.payto_e.setCompleter(completer)
 643         completer.setModel(self.completions)
 644
 645         self.message_e = QLineEdit()
 646         self.message_help = 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.'))
 647         grid.addWidget(QLabel(_('Description')), 2, 0)
 648         grid.addWidget(self.message_e, 2, 1, 1, 3)
 649         grid.addWidget(self.message_help, 2, 4)
 650
 651         self.from_label = QLabel(_('From'))
 652         grid.addWidget(self.from_label, 3, 0)
 653         self.from_list = QTreeWidget(self)
 654         self.from_list.setColumnCount(2)
 655         self.from_list.setColumnWidth(0, 350)
 656         self.from_list.setColumnWidth(1, 50)
 657         self.from_list.setHeaderHidden (True)
 658         self.from_list.setMaximumHeight(80)
 659         grid.addWidget(self.from_list, 3, 1, 1, 3)
 660         self.set_pay_from([])
 661
 662         self.amount_e = AmountEdit(self.base_unit)
 663         self.amount_help = HelpButton(_('Amount to be sent.') + '\n\n' \
 664                                       + _('The amount will be displayed in red if you do not have enough funds in your wallet. Note that if you have frozen some of your addresses, the available funds will be lower than your total balance.') \
 665                                       + '\n\n' + _('Keyboard shortcut: type "!" to send all your coins.'))
 666         grid.addWidget(QLabel(_('Amount')), 4, 0)
 667         grid.addWidget(self.amount_e, 4, 1, 1, 2)
 668         grid.addWidget(self.amount_help, 4, 3)
 669
 670         self.fee_e = AmountEdit(self.base_unit)
 671         grid.addWidget(QLabel(_('Fee')), 5, 0)
 672         grid.addWidget(self.fee_e, 5, 1, 1, 2)
 673         grid.addWidget(HelpButton(
 674                 _('Bitcoin transactions are in general not free. A transaction fee is paid by the sender of the funds.') + '\n\n'\
 675                     + _('The amount of fee can be decided freely by the sender. However, transactions with low fees take more time to be processed.') + '\n\n'\
 676                     + _('A suggested fee is automatically added to this field. You may override it. The suggested fee increases with the size of the transaction.')), 5, 3)
 677
 678         run_hook('exchange_rate_button', grid)
 679
 680         self.send_button = EnterButton(_("Send"), self.do_send)
 681         grid.addWidget(self.send_button, 6, 1)
 682
 683         b = EnterButton(_("Clear"),self.do_clear)
 684         grid.addWidget(b, 6, 2)
 685
 686         self.payto_sig = QLabel('')
 687         grid.addWidget(self.payto_sig, 7, 0, 1, 4)
 688
 689         QShortcut(QKeySequence("Up"), w, w.focusPreviousChild)
 690         QShortcut(QKeySequence("Down"), w, w.focusNextChild)
 691         w.setLayout(grid)
 692
 693         w2 = QWidget()
 694         vbox = QVBoxLayout()
 695         vbox.addWidget(w)
 696         vbox.addStretch(1)
 697         w2.setLayout(vbox)
 698
 699         def entry_changed( is_fee ):
 700             self.funds_error = False
 701
 702             if self.amount_e.is_shortcut:
 703                 self.amount_e.is_shortcut = False
 704                 sendable = self.get_sendable_balance()
 705                 # there is only one output because we are completely spending inputs
 706                 inputs, total, fee = self.wallet.choose_tx_inputs( sendable, 0, 1, self.get_payment_sources())
 707                 fee = self.wallet.estimated_fee(inputs, 1)
 708                 amount = total - fee
 709                 self.amount_e.setText( self.format_amount(amount) )
 710                 self.fee_e.setText( self.format_amount( fee ) )
 711                 return
 712
 713             amount = self.read_amount(str(self.amount_e.text()))
 714             fee = self.read_amount(str(self.fee_e.text()))
 715
 716             if not is_fee: fee = None
 717             if amount is None:
 718                 return
 719             # assume that there will be 2 outputs (one for change)
 720             inputs, total, fee = self.wallet.choose_tx_inputs(amount, fee, 2, self.get_payment_sources())
 721             if not is_fee:
 722                 self.fee_e.setText( self.format_amount( fee ) )
 723             if inputs:
 724                 palette = QPalette()
 725                 palette.setColor(self.amount_e.foregroundRole(), QColor('black'))
 726                 text = ""
 727             else:
 728                 palette = QPalette()
 729                 palette.setColor(self.amount_e.foregroundRole(), QColor('red'))
 730                 self.funds_error = True
 731                 text = _( "Not enough funds" )
 732                 c, u = self.wallet.get_frozen_balance()
 733                 if c+u: text += ' (' + self.format_amount(c+u).strip() + ' ' + self.base_unit() + ' ' +_("are frozen") + ')'
 734
 735             self.statusBar().showMessage(text)
 736             self.amount_e.setPalette(palette)
 737             self.fee_e.setPalette(palette)
 738
 739         self.amount_e.textChanged.connect(lambda: entry_changed(False) )
 740         self.fee_e.textChanged.connect(lambda: entry_changed(True) )
 741
 742         run_hook('create_send_tab', grid)
 743         return w2
 744
 745
 746     def set_pay_from(self, l):
 747         self.pay_from = l
 748         self.from_list.clear()
 749         self.from_label.setHidden(len(self.pay_from) == 0)
 750         self.from_list.setHidden(len(self.pay_from) == 0)
 751         for addr in self.pay_from:
 752             c, u = self.wallet.get_addr_balance(addr)
 753             balance = self.format_amount(c + u)
 754             self.from_list.addTopLevelItem(QTreeWidgetItem( [addr, balance] ))
 755
 756
 757     def update_completions(self):
 758         l = []
 759         for addr,label in self.wallet.labels.items():
 760             if addr in self.wallet.addressbook:
 761                 l.append( label + '  <' + addr + '>')
 762
 763         run_hook('update_completions', l)
 764         self.completions.setStringList(l)
 765
 766
 767     def protected(func):
 768         return lambda s, *args: s.do_protect(func, args)
 769
 770
 771     def do_send(self):
 772         label = unicode( self.message_e.text() )
 773
 774         if self.gui_object.payment_request:
 775             outputs = self.gui_object.payment_request.outputs
 776             amount = self.gui_object.payment_request.get_amount()
 777
 778         else:
 779             r = unicode( self.payto_e.text() )
 780             r = r.strip()
 781
 782             # label or alias, with address in brackets
 783             m = re.match('(.*?)\s*\<([1-9A-HJ-NP-Za-km-z]{26,})\>', r)
 784             to_address = m.group(2) if m else r
 785             if not is_valid(to_address):
 786                 QMessageBox.warning(self, _('Error'), _('Invalid Bitcoin Address') + ':\n' + to_address, _('OK'))
 787                 return
 788
 789             try:
 790                 amount = self.read_amount(unicode( self.amount_e.text()))
 791             except Exception:
 792                 QMessageBox.warning(self, _('Error'), _('Invalid Amount'), _('OK'))
 793                 return
 794
 795             outputs = [(to_address, amount)]
 796
 797         try:
 798             fee = self.read_amount(unicode( self.fee_e.text()))
 799         except Exception:
 800             QMessageBox.warning(self, _('Error'), _('Invalid Fee'), _('OK'))
 801             return
 802
 803         confirm_amount = self.config.get('confirm_amount', 100000000)
 804         if amount >= confirm_amount:
 805             if not self.question(_("send %(amount)s to %(address)s?")%{ 'amount' : self.format_amount(amount) + ' '+ self.base_unit(), 'address' : to_address}):
 806                 return
 807
 808         confirm_fee = self.config.get('confirm_fee', 100000)
 809         if fee >= confirm_fee:
 810             if not self.question(_("The fee for this transaction seems unusually high.\nAre you really sure you want to pay %(fee)s in fees?")%{ 'fee' : self.format_amount(fee) + ' '+ self.base_unit()}):
 811                 return
 812
 813         self.send_tx(outputs, fee, label)
 814
 815
 816
 817     @protected
 818     def send_tx(self, outputs, fee, label, password):
 819
 820         # first, create an unsigned tx
 821         domain = self.get_payment_sources()
 822         try:
 823             tx = self.wallet.make_unsigned_transaction(outputs, fee, None, domain)
 824             tx.error = None
 825         except Exception as e:
 826             traceback.print_exc(file=sys.stdout)
 827             self.show_message(str(e))
 828             return
 829
 830         # call hook to see if plugin needs gui interaction
 831         run_hook('send_tx', tx)
 832
 833         # sign the tx
 834         def sign_thread():
 835             time.sleep(0.1)
 836             keypairs = {}
 837             self.wallet.add_keypairs_from_wallet(tx, keypairs, password)
 838             self.wallet.sign_transaction(tx, keypairs, password)
 839             return tx, fee, label
 840
 841         def sign_done(tx, fee, label):
 842             if tx.error:
 843                 self.show_message(tx.error)
 844                 return
 845             if tx.requires_fee(self.wallet.verifier) and fee < MIN_RELAY_TX_FEE:
 846                 QMessageBox.warning(self, _('Error'), _("This transaction requires a higher fee, or it will not be propagated by the network."), _('OK'))
 847                 return
 848             if label:
 849                 self.wallet.set_label(tx.hash(), label)
 850
 851             if not self.gui_object.payment_request:
 852                 if not tx.is_complete() or self.config.get('show_before_broadcast'):
 853                     self.show_transaction(tx)
 854                     return
 855
 856             self.broadcast_transaction(tx)
 857
 858         WaitingDialog(self, 'Signing..').start(sign_thread, sign_done)
 859
 860
 861
 862     def broadcast_transaction(self, tx):
 863
 864         def broadcast_thread():
 865             if self.gui_object.payment_request:
 866                 refund_address = self.wallet.addresses()[0]
 867                 status, msg = self.gui_object.payment_request.send_ack(str(tx), refund_address)
 868                 self.gui_object.payment_request = None
 869             else:
 870                 status, msg =  self.wallet.sendtx(tx)
 871             return status, msg
 872
 873         def broadcast_done(status, msg):
 874             if status:
 875                 QMessageBox.information(self, '', _('Payment sent.') + '\n' + msg, _('OK'))
 876                 self.do_clear()
 877             else:
 878                 QMessageBox.warning(self, _('Error'), msg, _('OK'))
 879
 880         WaitingDialog(self, 'Broadcasting..').start(broadcast_thread, broadcast_done)
 881
 882
 883
 884     def prepare_for_payment_request(self):
 885         style = "QWidget { background-color:none;border:none;}"
 886         self.tabs.setCurrentIndex(1)
 887         for e in [self.payto_e, self.amount_e, self.message_e]:
 888             e.setReadOnly(True)
 889             e.setStyleSheet(style)
 890         for h in [self.payto_help, self.amount_help, self.message_help]:
 891             h.hide()
 892         self.payto_e.setText(_("please wait..."))
 893         return True
 894
 895     def payment_request_ok(self):
 896         self.payto_e.setText(self.gui_object.payment_request.domain)
 897         self.amount_e.setText(self.format_amount(self.gui_object.payment_request.get_amount()))
 898         self.message_e.setText(self.gui_object.payment_request.memo)
 899
 900     def payment_request_error(self):
 901         self.do_clear()
 902         self.show_message(self.gui_object.payment_request.error)
 903
 904
 905     def set_send(self, address, amount, label, message):
 906
 907         if label and self.wallet.labels.get(address) != label:
 908             if self.question('Give label "%s" to address %s ?'%(label,address)):
 909                 if address not in self.wallet.addressbook and not self.wallet.is_mine(address):
 910                     self.wallet.addressbook.append(address)
 911                 self.wallet.set_label(address, label)
 912
 913         self.tabs.setCurrentIndex(1)
 914         label = self.wallet.labels.get(address)
 915         m_addr = label + '  <'+ address +'>' if label else address
 916         self.payto_e.setText(m_addr)
 917
 918         self.message_e.setText(message)
 919         if amount:
 920             self.amount_e.setText(amount)
 921
 922
 923     def do_clear(self):
 924         self.payto_sig.setVisible(False)
 925         for e in [self.payto_e, self.message_e, self.amount_e, self.fee_e]:
 926             e.setText('')
 927             self.set_frozen(e,False)
 928             e.setStyleSheet("")
 929         for h in [self.payto_help, self.amount_help, self.message_help]:
 930             h.show()
 931
 932         self.set_pay_from([])
 933         self.update_status()
 934
 935     def set_frozen(self,entry,frozen):
 936         if frozen:
 937             entry.setReadOnly(True)
 938             entry.setFrame(False)
 939             palette = QPalette()
 940             palette.setColor(entry.backgroundRole(), QColor('lightgray'))
 941             entry.setPalette(palette)
 942         else:
 943             entry.setReadOnly(False)
 944             entry.setFrame(True)
 945             palette = QPalette()
 946             palette.setColor(entry.backgroundRole(), QColor('white'))
 947             entry.setPalette(palette)
 948
 949
 950     def set_addrs_frozen(self,addrs,freeze):
 951         for addr in addrs:
 952             if not addr: continue
 953             if addr in self.wallet.frozen_addresses and not freeze:
 954                 self.wallet.unfreeze(addr)
 955             elif addr not in self.wallet.frozen_addresses and freeze:
 956                 self.wallet.freeze(addr)
 957         self.update_receive_tab()
 958
 959
 960
 961     def create_list_tab(self, headers):
 962         "generic tab creation method"
 963         l = MyTreeWidget(self)
 964         l.setColumnCount( len(headers) )
 965         l.setHeaderLabels( headers )
 966
 967         w = QWidget()
 968         vbox = QVBoxLayout()
 969         w.setLayout(vbox)
 970
 971         vbox.setMargin(0)
 972         vbox.setSpacing(0)
 973         vbox.addWidget(l)
 974         buttons = QWidget()
 975         vbox.addWidget(buttons)
 976
 977         hbox = QHBoxLayout()
 978         hbox.setMargin(0)
 979         hbox.setSpacing(0)
 980         buttons.setLayout(hbox)
 981
 982         return l,w,hbox
 983
 984
 985     def create_receive_tab(self):
 986         l,w,hbox = self.create_list_tab([ _('Address'), _('Label'), _('Balance'), _('Tx')])
 987         l.setContextMenuPolicy(Qt.CustomContextMenu)
 988         l.customContextMenuRequested.connect(self.create_receive_menu)
 989         l.setSelectionMode(QAbstractItemView.ExtendedSelection)
 990         self.connect(l, SIGNAL('itemDoubleClicked(QTreeWidgetItem*, int)'), lambda a, b: self.address_label_clicked(a,b,l,0,1))
 991         self.connect(l, SIGNAL('itemChanged(QTreeWidgetItem*, int)'), lambda a,b: self.address_label_changed(a,b,l,0,1))
 992         self.connect(l, SIGNAL('currentItemChanged(QTreeWidgetItem*, QTreeWidgetItem*)'), lambda a,b: self.current_item_changed(a))
 993         self.receive_list = l
 994         self.receive_buttons_hbox = hbox
 995         hbox.addStretch(1)
 996         return w
 997
 998
 999
1000
1001     def save_column_widths(self):
1002         self.column_widths["receive"] = []
1003         for i in range(self.receive_list.columnCount() -1):
1004             self.column_widths["receive"].append(self.receive_list.columnWidth(i))
1005
1006         self.column_widths["history"] = []
1007         for i in range(self.history_list.columnCount() - 1):
1008             self.column_widths["history"].append(self.history_list.columnWidth(i))
1009
1010         self.column_widths["contacts"] = []
1011         for i in range(self.contacts_list.columnCount() - 1):
1012             self.column_widths["contacts"].append(self.contacts_list.columnWidth(i))
1013
1014         self.config.set_key("column_widths_2", self.column_widths, True)
1015
1016
1017     def create_contacts_tab(self):
1018         l,w,hbox = self.create_list_tab([_('Address'), _('Label'), _('Tx')])
1019         l.setContextMenuPolicy(Qt.CustomContextMenu)
1020         l.customContextMenuRequested.connect(self.create_contact_menu)
1021         for i,width in enumerate(self.column_widths['contacts']):
1022             l.setColumnWidth(i, width)
1023
1024         self.connect(l, SIGNAL('itemDoubleClicked(QTreeWidgetItem*, int)'), lambda a, b: self.address_label_clicked(a,b,l,0,1))
1025         self.connect(l, SIGNAL('itemChanged(QTreeWidgetItem*, int)'), lambda a,b: self.address_label_changed(a,b,l,0,1))
1026         self.contacts_list = l
1027         self.contacts_buttons_hbox = hbox
1028         hbox.addStretch(1)
1029         return w
1030
1031
1032     def delete_imported_key(self, addr):
1033         if self.question(_("Do you want to remove")+" %s "%addr +_("from your wallet?")):
1034             self.wallet.delete_imported_key(addr)
1035             self.update_receive_tab()
1036             self.update_history_tab()
1037
1038     def edit_account_label(self, k):
1039         text, ok = QInputDialog.getText(self, _('Rename account'), _('Name') + ':', text = self.wallet.labels.get(k,''))
1040         if ok:
1041             label = unicode(text)
1042             self.wallet.set_label(k,label)
1043             self.update_receive_tab()
1044
1045     def account_set_expanded(self, item, k, b):
1046         item.setExpanded(b)
1047         self.accounts_expanded[k] = b
1048
1049     def create_account_menu(self, position, k, item):
1050         menu = QMenu()
1051         if item.isExpanded():
1052             menu.addAction(_("Minimize"), lambda: self.account_set_expanded(item, k, False))
1053         else:
1054             menu.addAction(_("Maximize"), lambda: self.account_set_expanded(item, k, True))
1055         menu.addAction(_("Rename"), lambda: self.edit_account_label(k))
1056         if self.wallet.seed_version > 4:
1057             menu.addAction(_("View details"), lambda: self.show_account_details(k))
1058         if self.wallet.account_is_pending(k):
1059             menu.addAction(_("Delete"), lambda: self.delete_pending_account(k))
1060         menu.exec_(self.receive_list.viewport().mapToGlobal(position))
1061
1062     def delete_pending_account(self, k):
1063         self.wallet.delete_pending_account(k)
1064         self.update_receive_tab()
1065
1066     def create_receive_menu(self, position):
1067         # fixme: this function apparently has a side effect.
1068         # if it is not called the menu pops up several times
1069         #self.receive_list.selectedIndexes()
1070
1071         selected = self.receive_list.selectedItems()
1072         multi_select = len(selected) > 1
1073         addrs = [unicode(item.text(0)) for item in selected]
1074         if not multi_select:
1075             item = self.receive_list.itemAt(position)
1076             if not item: return
1077
1078             addr = addrs[0]
1079             if not is_valid(addr):
1080                 k = str(item.data(0,32).toString())
1081                 if k:
1082                     self.create_account_menu(position, k, item)
1083                 else:
1084                     item.setExpanded(not item.isExpanded())
1085                 return
1086
1087         menu = QMenu()
1088         if not multi_select:
1089             menu.addAction(_("Copy to clipboard"), lambda: self.app.clipboard().setText(addr))
1090             menu.addAction(_("QR code"), lambda: self.show_qrcode("bitcoin:" + addr, _("Address")) )
1091             menu.addAction(_("Edit label"), lambda: self.edit_label(True))
1092             menu.addAction(_("Public keys"), lambda: self.show_public_keys(addr))
1093             if not self.wallet.is_watching_only():
1094                 menu.addAction(_("Private key"), lambda: self.show_private_key(addr))
1095                 menu.addAction(_("Sign/verify message"), lambda: self.sign_verify_message(addr))
1096                 #menu.addAction(_("Encrypt/decrypt message"), lambda: self.encrypt_message(addr))
1097             if self.wallet.is_imported(addr):
1098                 menu.addAction(_("Remove from wallet"), lambda: self.delete_imported_key(addr))
1099
1100         if any(addr not in self.wallet.frozen_addresses for addr in addrs):
1101             menu.addAction(_("Freeze"), lambda: self.set_addrs_frozen(addrs, True))
1102         if any(addr in self.wallet.frozen_addresses for addr in addrs):
1103             menu.addAction(_("Unfreeze"), lambda: self.set_addrs_frozen(addrs, False))
1104
1105         if any(addr not in self.wallet.frozen_addresses for addr in addrs):
1106             menu.addAction(_("Send From"), lambda: self.send_from_addresses(addrs))
1107
1108         run_hook('receive_menu', menu, addrs)
1109         menu.exec_(self.receive_list.viewport().mapToGlobal(position))
1110
1111
1112     def get_sendable_balance(self):
1113         return sum(sum(self.wallet.get_addr_balance(a)) for a in self.get_payment_sources())
1114
1115
1116     def get_payment_sources(self):
1117         if self.pay_from:
1118             return self.pay_from
1119         else:
1120             return self.wallet.get_account_addresses(self.current_account)
1121
1122
1123     def send_from_addresses(self, addrs):
1124         self.set_pay_from( addrs )
1125         self.tabs.setCurrentIndex(1)
1126
1127
1128     def payto(self, addr):
1129         if not addr: return
1130         label = self.wallet.labels.get(addr)
1131         m_addr = label + '  <' + addr + '>' if label else addr
1132         self.tabs.setCurrentIndex(1)
1133         self.payto_e.setText(m_addr)
1134         self.amount_e.setFocus()
1135
1136
1137     def delete_contact(self, x):
1138         if self.question(_("Do you want to remove")+" %s "%x +_("from your list of contacts?")):
1139             self.wallet.delete_contact(x)
1140             self.wallet.set_label(x, None)
1141             self.update_history_tab()
1142             self.update_contacts_tab()
1143             self.update_completions()
1144
1145
1146     def create_contact_menu(self, position):
1147         item = self.contacts_list.itemAt(position)
1148         menu = QMenu()
1149         if not item:
1150             menu.addAction(_("New contact"), lambda: self.new_contact_dialog())
1151         else:
1152             addr = unicode(item.text(0))
1153             label = unicode(item.text(1))
1154             is_editable = item.data(0,32).toBool()
1155             payto_addr = item.data(0,33).toString()
1156             menu.addAction(_("Copy to Clipboard"), lambda: self.app.clipboard().setText(addr))
1157             menu.addAction(_("Pay to"), lambda: self.payto(payto_addr))
1158             menu.addAction(_("QR code"), lambda: self.show_qrcode("bitcoin:" + addr, _("Address")))
1159             if is_editable:
1160                 menu.addAction(_("Edit label"), lambda: self.edit_label(False))
1161                 menu.addAction(_("Delete"), lambda: self.delete_contact(addr))
1162
1163         run_hook('create_contact_menu', menu, item)
1164         menu.exec_(self.contacts_list.viewport().mapToGlobal(position))
1165
1166
1167     def update_receive_item(self, item):
1168         item.setFont(0, QFont(MONOSPACE_FONT))
1169         address = str(item.data(0,0).toString())
1170         label = self.wallet.labels.get(address,'')
1171         item.setData(1,0,label)
1172         item.setData(0,32, True) # is editable
1173
1174         run_hook('update_receive_item', address, item)
1175
1176         if not self.wallet.is_mine(address): return
1177
1178         c, u = self.wallet.get_addr_balance(address)
1179         balance = self.format_amount(c + u)
1180         item.setData(2,0,balance)
1181
1182         if address in self.wallet.frozen_addresses:
1183             item.setBackgroundColor(0, QColor('lightblue'))
1184
1185
1186     def update_receive_tab(self):
1187         l = self.receive_list
1188         # extend the syntax for consistency
1189         l.addChild = l.addTopLevelItem
1190
1191         l.clear()
1192         for i,width in enumerate(self.column_widths['receive']):
1193             l.setColumnWidth(i, width)
1194
1195         accounts = self.wallet.get_accounts()
1196         if self.current_account is None:
1197             account_items = sorted(accounts.items())
1198         else:
1199             account_items = [(self.current_account, accounts.get(self.current_account))]
1200
1201
1202         for k, account in account_items:
1203
1204             if len(accounts) > 1:
1205                 name = self.wallet.get_account_name(k)
1206                 c,u = self.wallet.get_account_balance(k)
1207                 account_item = QTreeWidgetItem( [ name, '', self.format_amount(c+u), ''] )
1208                 l.addTopLevelItem(account_item)
1209                 account_item.setExpanded(self.accounts_expanded.get(k, True))
1210                 account_item.setData(0, 32, k)
1211             else:
1212                 account_item = l
1213
1214             sequences = [0,1] if account.has_change() else [0]
1215             for is_change in sequences:
1216                 if len(sequences) > 1:
1217                     name = _("Receiving") if not is_change else _("Change")
1218                     seq_item = QTreeWidgetItem( [ name, '', '', '', ''] )
1219                     account_item.addChild(seq_item)
1220                     if not is_change:
1221                         seq_item.setExpanded(True)
1222                 else:
1223                     seq_item = account_item
1224
1225                 used_item = QTreeWidgetItem( [ _("Used"), '', '', '', ''] )
1226                 used_flag = False
1227
1228                 is_red = False
1229                 gap = 0
1230
1231                 for address in account.get_addresses(is_change):
1232                     h = self.wallet.history.get(address,[])
1233
1234                     if h == []:
1235                         gap += 1
1236                         if gap > self.wallet.gap_limit:
1237                             is_red = True
1238                     else:
1239                         gap = 0
1240
1241                     c, u = self.wallet.get_addr_balance(address)
1242                     num_tx = '*' if h == ['*'] else "%d"%len(h)
1243
1244                     item = QTreeWidgetItem( [ address, '', '', num_tx] )
1245                     self.update_receive_item(item)
1246                     if is_red:
1247                         item.setBackgroundColor(1, QColor('red'))
1248                     if len(h) > 0 and c == -u:
1249                         if not used_flag:
1250                             seq_item.insertChild(0,used_item)
1251                             used_flag = True
1252                         used_item.addChild(item)
1253                     else:
1254                         seq_item.addChild(item)
1255
1256         # we use column 1 because column 0 may be hidden
1257         l.setCurrentItem(l.topLevelItem(0),1)
1258
1259
1260     def update_contacts_tab(self):
1261         l = self.contacts_list
1262         l.clear()
1263
1264         for address in self.wallet.addressbook:
1265             label = self.wallet.labels.get(address,'')
1266             n = self.wallet.get_num_tx(address)
1267             item = QTreeWidgetItem( [ address, label, "%d"%n] )
1268             item.setFont(0, QFont(MONOSPACE_FONT))
1269             # 32 = label can be edited (bool)
1270             item.setData(0,32, True)
1271             # 33 = payto string
1272             item.setData(0,33, address)
1273             l.addTopLevelItem(item)
1274
1275         run_hook('update_contacts_tab', l)
1276         l.setCurrentItem(l.topLevelItem(0))
1277
1278
1279
1280     def create_console_tab(self):
1281         from console import Console
1282         self.console = console = Console()
1283         return console
1284
1285
1286     def update_console(self):
1287         console = self.console
1288         console.history = self.config.get("console-history",[])
1289         console.history_index = len(console.history)
1290
1291         console.updateNamespace({'wallet' : self.wallet, 'network' : self.network, 'gui':self})
1292         console.updateNamespace({'util' : util, 'bitcoin':bitcoin})
1293
1294         c = commands.Commands(self.wallet, self.network, lambda: self.console.set_json(True))
1295         methods = {}
1296         def mkfunc(f, method):
1297             return lambda *args: apply( f, (method, args, self.password_dialog ))
1298         for m in dir(c):
1299             if m[0]=='_' or m in ['network','wallet']: continue
1300             methods[m] = mkfunc(c._run, m)
1301
1302         console.updateNamespace(methods)
1303
1304
1305     def change_account(self,s):
1306         if s == _("All accounts"):
1307             self.current_account = None
1308         else:
1309             accounts = self.wallet.get_account_names()
1310             for k, v in accounts.items():
1311                 if v == s:
1312                     self.current_account = k
1313         self.update_history_tab()
1314         self.update_status()
1315         self.update_receive_tab()
1316
1317     def create_status_bar(self):
1318
1319         sb = QStatusBar()
1320         sb.setFixedHeight(35)
1321         qtVersion = qVersion()
1322
1323         self.balance_label = QLabel("")
1324         sb.addWidget(self.balance_label)
1325
1326         from version_getter import UpdateLabel
1327         self.updatelabel = UpdateLabel(self.config, sb)
1328
1329         self.account_selector = QComboBox()
1330         self.account_selector.setSizeAdjustPolicy(QComboBox.AdjustToContents)
1331         self.connect(self.account_selector,SIGNAL("activated(QString)"),self.change_account)
1332         sb.addPermanentWidget(self.account_selector)
1333
1334         if (int(qtVersion[0]) >= 4 and int(qtVersion[2]) >= 7):
1335             sb.addPermanentWidget( StatusBarButton( QIcon(":icons/switchgui.png"), _("Switch to Lite Mode"), self.go_lite ) )
1336
1337         self.lock_icon = QIcon()
1338         self.password_button = StatusBarButton( self.lock_icon, _("Password"), self.change_password_dialog )
1339         sb.addPermanentWidget( self.password_button )
1340
1341         sb.addPermanentWidget( StatusBarButton( QIcon(":icons/preferences.png"), _("Preferences"), self.settings_dialog ) )
1342         self.seed_button = StatusBarButton( QIcon(":icons/seed.png"), _("Seed"), self.show_seed_dialog )
1343         sb.addPermanentWidget( self.seed_button )
1344         self.status_button = StatusBarButton( QIcon(":icons/status_disconnected.png"), _("Network"), self.run_network_dialog )
1345         sb.addPermanentWidget( self.status_button )
1346
1347         run_hook('create_status_bar', (sb,))
1348
1349         self.setStatusBar(sb)
1350
1351
1352     def update_lock_icon(self):
1353         icon = QIcon(":icons/lock.png") if self.wallet.use_encryption else QIcon(":icons/unlock.png")
1354         self.password_button.setIcon( icon )
1355
1356
1357     def update_buttons_on_seed(self):
1358         if self.wallet.has_seed():
1359            self.seed_button.show()
1360         else:
1361            self.seed_button.hide()
1362
1363         if not self.wallet.is_watching_only():
1364            self.password_button.show()
1365            self.send_button.setText(_("Send"))
1366         else:
1367            self.password_button.hide()
1368            self.send_button.setText(_("Create unsigned transaction"))
1369
1370
1371     def change_password_dialog(self):
1372         from password_dialog import PasswordDialog
1373         d = PasswordDialog(self.wallet, self)
1374         d.run()
1375         self.update_lock_icon()
1376
1377
1378     def new_contact_dialog(self):
1379
1380         d = QDialog(self)
1381         d.setWindowTitle(_("New Contact"))
1382         vbox = QVBoxLayout(d)
1383         vbox.addWidget(QLabel(_('New Contact')+':'))
1384
1385         grid = QGridLayout()
1386         line1 = QLineEdit()
1387         line2 = QLineEdit()
1388         grid.addWidget(QLabel(_("Address")), 1, 0)
1389         grid.addWidget(line1, 1, 1)
1390         grid.addWidget(QLabel(_("Name")), 2, 0)
1391         grid.addWidget(line2, 2, 1)
1392
1393         vbox.addLayout(grid)
1394         vbox.addLayout(ok_cancel_buttons(d))
1395
1396         if not d.exec_():
1397             return
1398
1399         address = str(line1.text())
1400         label = unicode(line2.text())
1401
1402         if not is_valid(address):
1403             QMessageBox.warning(self, _('Error'), _('Invalid Address'), _('OK'))
1404             return
1405
1406         self.wallet.add_contact(address)
1407         if label:
1408             self.wallet.set_label(address, label)
1409
1410         self.update_contacts_tab()
1411         self.update_history_tab()
1412         self.update_completions()
1413         self.tabs.setCurrentIndex(3)
1414
1415
1416     @protected
1417     def new_account_dialog(self, password):
1418
1419         dialog = QDialog(self)
1420         dialog.setModal(1)
1421         dialog.setWindowTitle(_("New Account"))
1422
1423         vbox = QVBoxLayout()
1424         vbox.addWidget(QLabel(_('Account name')+':'))
1425         e = QLineEdit()
1426         vbox.addWidget(e)
1427         msg = _("Note: Newly created accounts are 'pending' until they receive bitcoins.") + " " \
1428             + _("You will need to wait for 2 confirmations until the correct balance is displayed and more addresses are created for that account.")
1429         l = QLabel(msg)
1430         l.setWordWrap(True)
1431         vbox.addWidget(l)
1432
1433         vbox.addLayout(ok_cancel_buttons(dialog))
1434         dialog.setLayout(vbox)
1435         r = dialog.exec_()
1436         if not r: return
1437
1438         name = str(e.text())
1439         if not name: return
1440
1441         self.wallet.create_pending_account(name, password)
1442         self.update_receive_tab()
1443         self.tabs.setCurrentIndex(2)
1444
1445
1446
1447
1448     def show_master_public_keys(self):
1449
1450         dialog = QDialog(self)
1451         dialog.setModal(1)
1452         dialog.setWindowTitle(_("Master Public Keys"))
1453
1454         main_layout = QGridLayout()
1455         mpk_dict = self.wallet.get_master_public_keys()
1456         i = 0
1457         for key, value in mpk_dict.items():
1458             main_layout.addWidget(QLabel(key), i, 0)
1459             mpk_text = QTextEdit()
1460             mpk_text.setReadOnly(True)
1461             mpk_text.setMaximumHeight(170)
1462             mpk_text.setText(value)
1463             main_layout.addWidget(mpk_text, i + 1, 0)
1464             i += 2
1465
1466         vbox = QVBoxLayout()
1467         vbox.addLayout(main_layout)
1468         vbox.addLayout(close_button(dialog))
1469
1470         dialog.setLayout(vbox)
1471         dialog.exec_()
1472
1473
1474     @protected
1475     def show_seed_dialog(self, password):
1476         if not self.wallet.has_seed():
1477             QMessageBox.information(self, _('Message'), _('This wallet has no seed'), _('OK'))
1478             return
1479
1480         try:
1481             mnemonic = self.wallet.get_mnemonic(password)
1482         except Exception:
1483             QMessageBox.warning(self, _('Error'), _('Incorrect Password'), _('OK'))
1484             return
1485         from seed_dialog import SeedDialog
1486         d = SeedDialog(self, mnemonic, self.wallet.imported_keys)
1487         d.exec_()
1488
1489
1490
1491     def show_qrcode(self, data, title = _("QR code")):
1492         if not data: return
1493         d = QDialog(self)
1494         d.setModal(1)
1495         d.setWindowTitle(title)
1496         d.setMinimumSize(270, 300)
1497         vbox = QVBoxLayout()
1498         qrw = QRCodeWidget(data)
1499         vbox.addWidget(qrw, 1)
1500         vbox.addWidget(QLabel(data), 0, Qt.AlignHCenter)
1501         hbox = QHBoxLayout()
1502         hbox.addStretch(1)
1503
1504         filename = os.path.join(self.config.path, "qrcode.bmp")
1505
1506         def print_qr():
1507             bmp.save_qrcode(qrw.qr, filename)
1508             QMessageBox.information(None, _('Message'), _("QR code saved to file") + " " + filename, _('OK'))
1509
1510         def copy_to_clipboard():
1511             bmp.save_qrcode(qrw.qr, filename)
1512             self.app.clipboard().setImage(QImage(filename))
1513             QMessageBox.information(None, _('Message'), _("QR code saved to clipboard"), _('OK'))
1514
1515         b = QPushButton(_("Copy"))
1516         hbox.addWidget(b)
1517         b.clicked.connect(copy_to_clipboard)
1518
1519         b = QPushButton(_("Save"))
1520         hbox.addWidget(b)
1521         b.clicked.connect(print_qr)
1522
1523         b = QPushButton(_("Close"))
1524         hbox.addWidget(b)
1525         b.clicked.connect(d.accept)
1526         b.setDefault(True)
1527
1528         vbox.addLayout(hbox)
1529         d.setLayout(vbox)
1530         d.exec_()
1531
1532
1533     def do_protect(self, func, args):
1534         if self.wallet.use_encryption:
1535             password = self.password_dialog()
1536             if not password:
1537                 return
1538         else:
1539             password = None
1540
1541         if args != (False,):
1542             args = (self,) + args + (password,)
1543         else:
1544             args = (self,password)
1545         apply( func, args)
1546
1547
1548     def show_public_keys(self, address):
1549         if not address: return
1550         try:
1551             pubkey_list = self.wallet.get_public_keys(address)
1552         except Exception as e:
1553             traceback.print_exc(file=sys.stdout)
1554             self.show_message(str(e))
1555             return
1556
1557         d = QDialog(self)
1558         d.setMinimumSize(600, 200)
1559         d.setModal(1)
1560         vbox = QVBoxLayout()
1561         vbox.addWidget( QLabel(_("Address") + ': ' + address))
1562         vbox.addWidget( QLabel(_("Public key") + ':'))
1563         keys = QTextEdit()
1564         keys.setReadOnly(True)
1565         keys.setText('\n'.join(pubkey_list))
1566         vbox.addWidget(keys)
1567         #vbox.addWidget( QRCodeWidget('\n'.join(pk_list)) )
1568         vbox.addLayout(close_button(d))
1569         d.setLayout(vbox)
1570         d.exec_()
1571
1572     @protected
1573     def show_private_key(self, address, password):
1574         if not address: return
1575         try:
1576             pk_list = self.wallet.get_private_key(address, password)
1577         except Exception as e:
1578             traceback.print_exc(file=sys.stdout)
1579             self.show_message(str(e))
1580             return
1581
1582         d = QDialog(self)
1583         d.setMinimumSize(600, 200)
1584         d.setModal(1)
1585         vbox = QVBoxLayout()
1586         vbox.addWidget( QLabel(_("Address") + ': ' + address))
1587         vbox.addWidget( QLabel(_("Private key") + ':'))
1588         keys = QTextEdit()
1589         keys.setReadOnly(True)
1590         keys.setText('\n'.join(pk_list))
1591         vbox.addWidget(keys)
1592         vbox.addWidget( QRCodeWidget('\n'.join(pk_list)) )
1593         vbox.addLayout(close_button(d))
1594         d.setLayout(vbox)
1595         d.exec_()
1596
1597
1598     @protected
1599     def do_sign(self, address, message, signature, password):
1600         message = unicode(message.toPlainText())
1601         message = message.encode('utf-8')
1602         try:
1603             sig = self.wallet.sign_message(str(address.text()), message, password)
1604             signature.setText(sig)
1605         except Exception as e:
1606             self.show_message(str(e))
1607
1608     def do_verify(self, address, message, signature):
1609         message = unicode(message.toPlainText())
1610         message = message.encode('utf-8')
1611         if bitcoin.verify_message(address.text(), str(signature.toPlainText()), message):
1612             self.show_message(_("Signature verified"))
1613         else:
1614             self.show_message(_("Error: wrong signature"))
1615
1616
1617     def sign_verify_message(self, address=''):
1618         d = QDialog(self)
1619         d.setModal(1)
1620         d.setWindowTitle(_('Sign/verify Message'))
1621         d.setMinimumSize(410, 290)
1622
1623         layout = QGridLayout(d)
1624
1625         message_e = QTextEdit()
1626         layout.addWidget(QLabel(_('Message')), 1, 0)
1627         layout.addWidget(message_e, 1, 1)
1628         layout.setRowStretch(2,3)
1629
1630         address_e = QLineEdit()
1631         address_e.setText(address)
1632         layout.addWidget(QLabel(_('Address')), 2, 0)
1633         layout.addWidget(address_e, 2, 1)
1634
1635         signature_e = QTextEdit()
1636         layout.addWidget(QLabel(_('Signature')), 3, 0)
1637         layout.addWidget(signature_e, 3, 1)
1638         layout.setRowStretch(3,1)
1639
1640         hbox = QHBoxLayout()
1641
1642         b = QPushButton(_("Sign"))
1643         b.clicked.connect(lambda: self.do_sign(address_e, message_e, signature_e))
1644         hbox.addWidget(b)
1645
1646         b = QPushButton(_("Verify"))
1647         b.clicked.connect(lambda: self.do_verify(address_e, message_e, signature_e))
1648         hbox.addWidget(b)
1649
1650         b = QPushButton(_("Close"))
1651         b.clicked.connect(d.accept)
1652         hbox.addWidget(b)
1653         layout.addLayout(hbox, 4, 1)
1654         d.exec_()
1655
1656
1657     @protected
1658     def do_decrypt(self, message_e, pubkey_e, encrypted_e, password):
1659         try:
1660             decrypted = self.wallet.decrypt_message(str(pubkey_e.text()), str(encrypted_e.toPlainText()), password)
1661             message_e.setText(decrypted)
1662         except Exception as e:
1663             self.show_message(str(e))
1664
1665
1666     def do_encrypt(self, message_e, pubkey_e, encrypted_e):
1667         message = unicode(message_e.toPlainText())
1668         message = message.encode('utf-8')
1669         try:
1670             encrypted = bitcoin.encrypt_message(message, str(pubkey_e.text()))
1671             encrypted_e.setText(encrypted)
1672         except Exception as e:
1673             self.show_message(str(e))
1674
1675
1676
1677     def encrypt_message(self, address = ''):
1678         d = QDialog(self)
1679         d.setModal(1)
1680         d.setWindowTitle(_('Encrypt/decrypt Message'))
1681         d.setMinimumSize(610, 490)
1682
1683         layout = QGridLayout(d)
1684
1685         message_e = QTextEdit()
1686         layout.addWidget(QLabel(_('Message')), 1, 0)
1687         layout.addWidget(message_e, 1, 1)
1688         layout.setRowStretch(2,3)
1689
1690         pubkey_e = QLineEdit()
1691         if address:
1692             pubkey = self.wallet.getpubkeys(address)[0]
1693             pubkey_e.setText(pubkey)
1694         layout.addWidget(QLabel(_('Public key')), 2, 0)
1695         layout.addWidget(pubkey_e, 2, 1)
1696
1697         encrypted_e = QTextEdit()
1698         layout.addWidget(QLabel(_('Encrypted')), 3, 0)
1699         layout.addWidget(encrypted_e, 3, 1)
1700         layout.setRowStretch(3,1)
1701
1702         hbox = QHBoxLayout()
1703         b = QPushButton(_("Encrypt"))
1704         b.clicked.connect(lambda: self.do_encrypt(message_e, pubkey_e, encrypted_e))
1705         hbox.addWidget(b)
1706
1707         b = QPushButton(_("Decrypt"))
1708         b.clicked.connect(lambda: self.do_decrypt(message_e, pubkey_e, encrypted_e))
1709         hbox.addWidget(b)
1710
1711         b = QPushButton(_("Close"))
1712         b.clicked.connect(d.accept)
1713         hbox.addWidget(b)
1714
1715         layout.addLayout(hbox, 4, 1)
1716         d.exec_()
1717
1718
1719     def question(self, msg):
1720         return QMessageBox.question(self, _('Message'), msg, QMessageBox.Yes | QMessageBox.No, QMessageBox.No) == QMessageBox.Yes
1721
1722     def show_message(self, msg):
1723         QMessageBox.information(self, _('Message'), msg, _('OK'))
1724
1725     def password_dialog(self ):
1726         d = QDialog(self)
1727         d.setModal(1)
1728         d.setWindowTitle(_("Enter Password"))
1729
1730         pw = QLineEdit()
1731         pw.setEchoMode(2)
1732
1733         vbox = QVBoxLayout()
1734         msg = _('Please enter your password')
1735         vbox.addWidget(QLabel(msg))
1736
1737         grid = QGridLayout()
1738         grid.setSpacing(8)
1739         grid.addWidget(QLabel(_('Password')), 1, 0)
1740         grid.addWidget(pw, 1, 1)
1741         vbox.addLayout(grid)
1742
1743         vbox.addLayout(ok_cancel_buttons(d))
1744         d.setLayout(vbox)
1745
1746         run_hook('password_dialog', pw, grid, 1)
1747         if not d.exec_(): return
1748         return unicode(pw.text())
1749
1750
1751
1752
1753
1754
1755
1756
1757     def tx_from_text(self, txt):
1758         "json or raw hexadecimal"
1759         try:
1760             txt.decode('hex')
1761             tx = Transaction(txt)
1762             return tx
1763         except Exception:
1764             pass
1765
1766         try:
1767             tx_dict = json.loads(str(txt))
1768             assert "hex" in tx_dict.keys()
1769             assert "complete" in tx_dict.keys()
1770             tx = Transaction(tx_dict["hex"], tx_dict["complete"])
1771             if not tx_dict["complete"]:
1772                 assert "input_info" in tx_dict.keys()
1773                 input_info = json.loads(tx_dict['input_info'])
1774                 tx.add_input_info(input_info)
1775             return tx
1776         except Exception:
1777             pass
1778
1779         QMessageBox.critical(None, _("Unable to parse transaction"), _("Electrum was unable to parse your transaction"))
1780
1781
1782
1783     def read_tx_from_file(self):
1784         fileName = self.getOpenFileName(_("Select your transaction file"), "*.txn")
1785         if not fileName:
1786             return
1787         try:
1788             with open(fileName, "r") as f:
1789                 file_content = f.read()
1790         except (ValueError, IOError, os.error), reason:
1791             QMessageBox.critical(None, _("Unable to read file or no transaction found"), _("Electrum was unable to open your transaction file") + "\n" + str(reason))
1792
1793         return self.tx_from_text(file_content)
1794
1795
1796     @protected
1797     def sign_raw_transaction(self, tx, input_info, password):
1798         self.wallet.signrawtransaction(tx, input_info, [], password)
1799
1800     def do_process_from_text(self):
1801         text = text_dialog(self, _('Input raw transaction'), _("Transaction:"), _("Load transaction"))
1802         if not text:
1803             return
1804         tx = self.tx_from_text(text)
1805         if tx:
1806             self.show_transaction(tx)
1807
1808     def do_process_from_file(self):
1809         tx = self.read_tx_from_file()
1810         if tx:
1811             self.show_transaction(tx)
1812
1813     def do_process_from_txid(self):
1814         from electrum import transaction
1815         txid, ok = QInputDialog.getText(self, _('Lookup transaction'), _('Transaction ID') + ':')
1816         if ok and txid:
1817             r = self.network.synchronous_get([ ('blockchain.transaction.get',[str(txid)]) ])[0]
1818             if r:
1819                 tx = transaction.Transaction(r)
1820                 if tx:
1821                     self.show_transaction(tx)
1822                 else:
1823                     self.show_message("unknown transaction")
1824
1825     def do_process_from_csvReader(self, csvReader):
1826         outputs = []
1827         errors = []
1828         errtext = ""
1829         try:
1830             for position, row in enumerate(csvReader):
1831                 address = row[0]
1832                 if not is_valid(address):
1833                     errors.append((position, address))
1834                     continue
1835                 amount = Decimal(row[1])
1836                 amount = int(100000000*amount)
1837                 outputs.append((address, amount))
1838         except (ValueError, IOError, os.error), reason:
1839             QMessageBox.critical(None, _("Unable to read file or no transaction found"), _("Electrum was unable to open your transaction file") + "\n" + str(reason))
1840             return
1841         if errors != []:
1842             for x in errors:
1843                 errtext += "CSV Row " + str(x[0]+1) + ": " + x[1] + "\n"
1844             QMessageBox.critical(None, _("Invalid Addresses"), _("ABORTING! Invalid Addresses found:") + "\n\n" + errtext)
1845             return
1846
1847         try:
1848             tx = self.wallet.make_unsigned_transaction(outputs, None, None)
1849         except Exception as e:
1850             self.show_message(str(e))
1851             return
1852
1853         self.show_transaction(tx)
1854
1855     def do_process_from_csv_file(self):
1856         fileName = self.getOpenFileName(_("Select your transaction CSV"), "*.csv")
1857         if not fileName:
1858             return
1859         try:
1860             with open(fileName, "r") as f:
1861                 csvReader = csv.reader(f)
1862                 self.do_process_from_csvReader(csvReader)
1863         except (ValueError, IOError, os.error), reason:
1864             QMessageBox.critical(None, _("Unable to read file or no transaction found"), _("Electrum was unable to open your transaction file") + "\n" + str(reason))
1865             return
1866
1867     def do_process_from_csv_text(self):
1868         text = text_dialog(self, _('Input CSV'), _("Please enter a list of outputs.") + '\n' \
1869                                + _("Format: address, amount. One output per line"), _("Load CSV"))
1870         if not text:
1871             return
1872         f = StringIO.StringIO(text)
1873         csvReader = csv.reader(f)
1874         self.do_process_from_csvReader(csvReader)
1875
1876
1877
1878     @protected
1879     def export_privkeys_dialog(self, password):
1880         if self.wallet.is_watching_only():
1881             self.show_message(_("This is a watching-only wallet"))
1882             return
1883
1884         d = QDialog(self)
1885         d.setWindowTitle(_('Private keys'))
1886         d.setMinimumSize(850, 300)
1887         vbox = QVBoxLayout(d)
1888
1889         msg = "%s\n%s\n%s" % (_("WARNING: ALL your private keys are secret."),
1890                               _("Exposing a single private key can compromise your entire wallet!"),
1891                               _("In particular, DO NOT use 'redeem private key' services proposed by third parties."))
1892         vbox.addWidget(QLabel(msg))
1893
1894         e = QTextEdit()
1895         e.setReadOnly(True)
1896         vbox.addWidget(e)
1897
1898         defaultname = 'electrum-private-keys.csv'
1899         select_msg = _('Select file to export your private keys to')
1900         hbox, filename_e, csv_button = filename_field(self, self.config, defaultname, select_msg)
1901         vbox.addLayout(hbox)
1902
1903         h, b = ok_cancel_buttons2(d, _('Export'))
1904         b.setEnabled(False)
1905         vbox.addLayout(h)
1906
1907         private_keys = {}
1908         addresses = self.wallet.addresses(True)
1909         done = False
1910         def privkeys_thread():
1911             for addr in addresses:
1912                 time.sleep(0.1)
1913                 if done:
1914                     break
1915                 private_keys[addr] = "\n".join(self.wallet.get_private_key(addr, password))
1916                 d.emit(SIGNAL('computing_privkeys'))
1917             d.emit(SIGNAL('show_privkeys'))
1918
1919         def show_privkeys():
1920             s = "\n".join( map( lambda x: x[0] + "\t"+ x[1], private_keys.items()))
1921             e.setText(s)
1922             b.setEnabled(True)
1923
1924         d.connect(d, QtCore.SIGNAL('computing_privkeys'), lambda: e.setText("Please wait... %d/%d"%(len(private_keys),len(addresses))))
1925         d.connect(d, QtCore.SIGNAL('show_privkeys'), show_privkeys)
1926         threading.Thread(target=privkeys_thread).start()
1927
1928         if not d.exec_():
1929             done = True
1930             return
1931
1932         filename = filename_e.text()
1933         if not filename:
1934             return
1935
1936         try:
1937             self.do_export_privkeys(filename, private_keys, csv_button.isChecked())
1938         except (IOError, os.error), reason:
1939             export_error_label = _("Electrum was unable to produce a private key-export.")
1940             QMessageBox.critical(None, _("Unable to create csv"), export_error_label + "\n" + str(reason))
1941
1942         except Exception as e:
1943             self.show_message(str(e))
1944             return
1945
1946         self.show_message(_("Private keys exported."))
1947
1948
1949     def do_export_privkeys(self, fileName, pklist, is_csv):
1950         with open(fileName, "w+") as f:
1951             if is_csv:
1952                 transaction = csv.writer(f)
1953                 transaction.writerow(["address", "private_key"])
1954                 for addr, pk in pklist.items():
1955                     transaction.writerow(["%34s"%addr,pk])
1956             else:
1957                 import json
1958                 f.write(json.dumps(pklist, indent = 4))
1959
1960
1961     def do_import_labels(self):
1962         labelsFile = self.getOpenFileName(_("Open labels file"), "*.dat")
1963         if not labelsFile: return
1964         try:
1965             f = open(labelsFile, 'r')
1966             data = f.read()
1967             f.close()
1968             for key, value in json.loads(data).items():
1969                 self.wallet.set_label(key, value)
1970             QMessageBox.information(None, _("Labels imported"), _("Your labels were imported from")+" '%s'" % str(labelsFile))
1971         except (IOError, os.error), reason:
1972             QMessageBox.critical(None, _("Unable to import labels"), _("Electrum was unable to import your labels.")+"\n" + str(reason))
1973
1974
1975     def do_export_labels(self):
1976         labels = self.wallet.labels
1977         try:
1978             fileName = self.getSaveFileName(_("Select file to save your labels"), 'electrum_labels.dat', "*.dat")
1979             if fileName:
1980                 with open(fileName, 'w+') as f:
1981                     json.dump(labels, f)
1982                 QMessageBox.information(None, _("Labels exported"), _("Your labels where exported to")+" '%s'" % str(fileName))
1983         except (IOError, os.error), reason:
1984             QMessageBox.critical(None, _("Unable to export labels"), _("Electrum was unable to export your labels.")+"\n" + str(reason))
1985
1986
1987     def export_history_dialog(self):
1988
1989         d = QDialog(self)
1990         d.setWindowTitle(_('Export History'))
1991         d.setMinimumSize(400, 200)
1992         vbox = QVBoxLayout(d)
1993
1994         defaultname = os.path.expanduser('~/electrum-history.csv')
1995         select_msg = _('Select file to export your wallet transactions to')
1996
1997         hbox, filename_e, csv_button = filename_field(self, self.config, defaultname, select_msg)
1998         vbox.addLayout(hbox)
1999
2000         vbox.addStretch(1)
2001
2002         h, b = ok_cancel_buttons2(d, _('Export'))
2003         vbox.addLayout(h)
2004         if not d.exec_():
2005             return
2006
2007         filename = filename_e.text()
2008         if not filename:
2009             return
2010
2011         try:
2012             self.do_export_history(self.wallet, filename, csv_button.isChecked())
2013         except (IOError, os.error), reason:
2014             export_error_label = _("Electrum was unable to produce a transaction export.")
2015             QMessageBox.critical(self, _("Unable to export history"), export_error_label + "\n" + str(reason))
2016             return
2017
2018         QMessageBox.information(self,_("History exported"), _("Your wallet history has been successfully exported."))
2019
2020
2021     def do_export_history(self, wallet, fileName, is_csv):
2022         history = wallet.get_tx_history()
2023         lines = []
2024         for item in history:
2025             tx_hash, confirmations, is_mine, value, fee, balance, timestamp = item
2026             if confirmations:
2027                 if timestamp is not None:
2028                     try:
2029                         time_string = datetime.datetime.fromtimestamp(timestamp).isoformat(' ')[:-3]
2030                     except [RuntimeError, TypeError, NameError] as reason:
2031                         time_string = "unknown"
2032                         pass
2033                 else:
2034                     time_string = "unknown"
2035             else:
2036                 time_string = "pending"
2037
2038             if value is not None:
2039                 value_string = format_satoshis(value, True)
2040             else:
2041                 value_string = '--'
2042
2043             if fee is not None:
2044                 fee_string = format_satoshis(fee, True)
2045             else:
2046                 fee_string = '0'
2047
2048             if tx_hash:
2049                 label, is_default_label = wallet.get_label(tx_hash)
2050                 label = label.encode('utf-8')
2051             else:
2052                 label = ""
2053
2054             balance_string = format_satoshis(balance, False)
2055             if is_csv:
2056                 lines.append([tx_hash, label, confirmations, value_string, fee_string, balance_string, time_string])
2057             else:
2058                 lines.append({'txid':tx_hash, 'date':"%16s"%time_string, 'label':label, 'value':value_string})
2059
2060         with open(fileName, "w+") as f:
2061             if is_csv:
2062                 transaction = csv.writer(f)
2063                 transaction.writerow(["transaction_hash","label", "confirmations", "value", "fee", "balance", "timestamp"])
2064                 for line in lines:
2065                     transaction.writerow(line)
2066             else:
2067                 import json
2068                 f.write(json.dumps(lines, indent = 4))
2069
2070
2071     def sweep_key_dialog(self):
2072         d = QDialog(self)
2073         d.setWindowTitle(_('Sweep private keys'))
2074         d.setMinimumSize(600, 300)
2075
2076         vbox = QVBoxLayout(d)
2077         vbox.addWidget(QLabel(_("Enter private keys")))
2078
2079         keys_e = QTextEdit()
2080         keys_e.setTabChangesFocus(True)
2081         vbox.addWidget(keys_e)
2082
2083         h, address_e = address_field(self.wallet.addresses())
2084         vbox.addLayout(h)
2085
2086         vbox.addStretch(1)
2087         hbox, button = ok_cancel_buttons2(d, _('Sweep'))
2088         vbox.addLayout(hbox)
2089         button.setEnabled(False)
2090
2091         def get_address():
2092             addr = str(address_e.text())
2093             if bitcoin.is_address(addr):
2094                 return addr
2095
2096         def get_pk():
2097             pk = str(keys_e.toPlainText()).strip()
2098             if Wallet.is_private_key(pk):
2099                 return pk.split()
2100
2101         f = lambda: button.setEnabled(get_address() is not None and get_pk() is not None)
2102         keys_e.textChanged.connect(f)
2103         address_e.textChanged.connect(f)
2104         if not d.exec_():
2105             return
2106
2107         fee = self.wallet.fee
2108         tx = Transaction.sweep(get_pk(), self.network, get_address(), fee)
2109         self.show_transaction(tx)
2110
2111
2112     @protected
2113     def do_import_privkey(self, password):
2114         if not self.wallet.imported_keys:
2115             r = QMessageBox.question(None, _('Warning'), '<b>'+_('Warning') +':\n</b><br/>'+ _('Imported keys are not recoverable from seed.') + ' ' \
2116                                          + _('If you ever need to restore your wallet from its seed, these keys will be lost.') + '<p>' \
2117                                          + _('Are you sure you understand what you are doing?'), 3, 4)
2118             if r == 4: return
2119
2120         text = text_dialog(self, _('Import private keys'), _("Enter private keys")+':', _("Import"))
2121         if not text: return
2122
2123         text = str(text).split()
2124         badkeys = []
2125         addrlist = []
2126         for key in text:
2127             try:
2128                 addr = self.wallet.import_key(key, password)
2129             except Exception as e:
2130                 badkeys.append(key)
2131                 continue
2132             if not addr:
2133                 badkeys.append(key)
2134             else:
2135                 addrlist.append(addr)
2136         if addrlist:
2137             QMessageBox.information(self, _('Information'), _("The following addresses were added") + ':\n' + '\n'.join(addrlist))
2138         if badkeys:
2139             QMessageBox.critical(self, _('Error'), _("The following inputs could not be imported") + ':\n'+ '\n'.join(badkeys))
2140         self.update_receive_tab()
2141         self.update_history_tab()
2142
2143
2144     def settings_dialog(self):
2145         d = QDialog(self)
2146         d.setWindowTitle(_('Electrum Settings'))
2147         d.setModal(1)
2148         vbox = QVBoxLayout()
2149         grid = QGridLayout()
2150         grid.setColumnStretch(0,1)
2151
2152         nz_label = QLabel(_('Display zeros') + ':')
2153         grid.addWidget(nz_label, 0, 0)
2154         nz_e = AmountEdit(None,True)
2155         nz_e.setText("%d"% self.num_zeros)
2156         grid.addWidget(nz_e, 0, 1)
2157         msg = _('Number of zeros displayed after the decimal point. For example, if this is set to 2, "1." will be displayed as "1.00"')
2158         grid.addWidget(HelpButton(msg), 0, 2)
2159         if not self.config.is_modifiable('num_zeros'):
2160             for w in [nz_e, nz_label]: w.setEnabled(False)
2161
2162         lang_label=QLabel(_('Language') + ':')
2163         grid.addWidget(lang_label, 1, 0)
2164         lang_combo = QComboBox()
2165         from electrum.i18n import languages
2166         lang_combo.addItems(languages.values())
2167         try:
2168             index = languages.keys().index(self.config.get("language",''))
2169         except Exception:
2170             index = 0
2171         lang_combo.setCurrentIndex(index)
2172         grid.addWidget(lang_combo, 1, 1)
2173         grid.addWidget(HelpButton(_('Select which language is used in the GUI (after restart).')+' '), 1, 2)
2174         if not self.config.is_modifiable('language'):
2175             for w in [lang_combo, lang_label]: w.setEnabled(False)
2176
2177
2178         fee_label = QLabel(_('Transaction fee') + ':')
2179         grid.addWidget(fee_label, 2, 0)
2180         fee_e = AmountEdit(self.base_unit)
2181         fee_e.setText(self.format_amount(self.wallet.fee).strip())
2182         grid.addWidget(fee_e, 2, 1)
2183         msg = _('Fee per kilobyte of transaction.') + ' ' \
2184             + _('Recommended value') + ': ' + self.format_amount(20000)
2185         grid.addWidget(HelpButton(msg), 2, 2)
2186         if not self.config.is_modifiable('fee_per_kb'):
2187             for w in [fee_e, fee_label]: w.setEnabled(False)
2188
2189         units = ['BTC', 'mBTC']
2190         unit_label = QLabel(_('Base unit') + ':')
2191         grid.addWidget(unit_label, 3, 0)
2192         unit_combo = QComboBox()
2193         unit_combo.addItems(units)
2194         unit_combo.setCurrentIndex(units.index(self.base_unit()))
2195         grid.addWidget(unit_combo, 3, 1)
2196         grid.addWidget(HelpButton(_('Base unit of your wallet.')\
2197                                              + '\n1BTC=1000mBTC.\n' \
2198                                              + _(' These settings affects the fields in the Send tab')+' '), 3, 2)
2199
2200         usechange_cb = QCheckBox(_('Use change addresses'))
2201         usechange_cb.setChecked(self.wallet.use_change)
2202         grid.addWidget(usechange_cb, 4, 0)
2203         grid.addWidget(HelpButton(_('Using change addresses makes it more difficult for other people to track your transactions.')+' '), 4, 2)
2204         if not self.config.is_modifiable('use_change'): usechange_cb.setEnabled(False)
2205
2206         block_explorers = ['Blockchain.info', 'Blockr.io', 'Insight.is']
2207         block_ex_label = QLabel(_('Online Block Explorer') + ':')
2208         grid.addWidget(block_ex_label, 5, 0)
2209         block_ex_combo = QComboBox()
2210         block_ex_combo.addItems(block_explorers)
2211         block_ex_combo.setCurrentIndex(block_explorers.index(self.config.get('block_explorer', 'Blockchain.info')))
2212         grid.addWidget(block_ex_combo, 5, 1)
2213         grid.addWidget(HelpButton(_('Choose which online block explorer to use for functions that open a web browser')+' '), 5, 2)
2214
2215         show_tx = self.config.get('show_before_broadcast', False)
2216         showtx_cb = QCheckBox(_('Show before broadcast'))
2217         showtx_cb.setChecked(show_tx)
2218         grid.addWidget(showtx_cb, 6, 0)
2219         grid.addWidget(HelpButton(_('Display the details of your transactions before broadcasting it.')), 6, 2)
2220
2221         vbox.addLayout(grid)
2222         vbox.addStretch(1)
2223         vbox.addLayout(ok_cancel_buttons(d))
2224         d.setLayout(vbox)
2225
2226         # run the dialog
2227         if not d.exec_(): return
2228
2229         fee = unicode(fee_e.text())
2230         try:
2231             fee = self.read_amount(fee)
2232         except Exception:
2233             QMessageBox.warning(self, _('Error'), _('Invalid value') +': %s'%fee, _('OK'))
2234             return
2235
2236         self.wallet.set_fee(fee)
2237
2238         nz = unicode(nz_e.text())
2239         try:
2240             nz = int( nz )
2241             if nz>8: nz=8
2242         except Exception:
2243             QMessageBox.warning(self, _('Error'), _('Invalid value')+':%s'%nz, _('OK'))
2244             return
2245
2246         if self.num_zeros != nz:
2247             self.num_zeros = nz
2248             self.config.set_key('num_zeros', nz, True)
2249             self.update_history_tab()
2250             self.update_receive_tab()
2251
2252         usechange_result = usechange_cb.isChecked()
2253         if self.wallet.use_change != usechange_result:
2254             self.wallet.use_change = usechange_result
2255             self.wallet.storage.put('use_change', self.wallet.use_change)
2256
2257         if showtx_cb.isChecked() != show_tx:
2258             self.config.set_key('show_before_broadcast', not show_tx)
2259
2260         unit_result = units[unit_combo.currentIndex()]
2261         if self.base_unit() != unit_result:
2262             self.decimal_point = 8 if unit_result == 'BTC' else 5
2263             self.config.set_key('decimal_point', self.decimal_point, True)
2264             self.update_history_tab()
2265             self.update_status()
2266
2267         need_restart = False
2268
2269         lang_request = languages.keys()[lang_combo.currentIndex()]
2270         if lang_request != self.config.get('language'):
2271             self.config.set_key("language", lang_request, True)
2272             need_restart = True
2273
2274         be_result = block_explorers[block_ex_combo.currentIndex()]
2275         self.config.set_key('block_explorer', be_result, True)
2276
2277         run_hook('close_settings_dialog')
2278
2279         if need_restart:
2280             QMessageBox.warning(self, _('Success'), _('Please restart Electrum to activate the new GUI settings'), _('OK'))
2281
2282
2283     def run_network_dialog(self):
2284         if not self.network:
2285             return
2286         NetworkDialog(self.wallet.network, self.config, self).do_exec()
2287
2288     def closeEvent(self, event):
2289         self.tray.hide()
2290         self.config.set_key("is_maximized", self.isMaximized())
2291         if not self.isMaximized():
2292             g = self.geometry()
2293             self.config.set_key("winpos-qt", [g.left(),g.top(),g.width(),g.height()])
2294         self.save_column_widths()
2295         self.config.set_key("console-history", self.console.history[-50:], True)
2296         self.wallet.storage.put('accounts_expanded', self.accounts_expanded)
2297         event.accept()
2298
2299
2300     def plugins_dialog(self):
2301         from electrum.plugins import plugins
2302
2303         d = QDialog(self)
2304         d.setWindowTitle(_('Electrum Plugins'))
2305         d.setModal(1)
2306
2307         vbox = QVBoxLayout(d)
2308
2309         # plugins
2310         scroll = QScrollArea()
2311         scroll.setEnabled(True)
2312         scroll.setWidgetResizable(True)
2313         scroll.setMinimumSize(400,250)
2314         vbox.addWidget(scroll)
2315
2316         w = QWidget()
2317         scroll.setWidget(w)
2318         w.setMinimumHeight(len(plugins)*35)
2319
2320         grid = QGridLayout()
2321         grid.setColumnStretch(0,1)
2322         w.setLayout(grid)
2323
2324         def do_toggle(cb, p, w):
2325             r = p.toggle()
2326             cb.setChecked(r)
2327             if w: w.setEnabled(r)
2328
2329         def mk_toggle(cb, p, w):
2330             return lambda: do_toggle(cb,p,w)
2331
2332         for i, p in enumerate(plugins):
2333             try:
2334                 cb = QCheckBox(p.fullname())
2335                 cb.setDisabled(not p.is_available())
2336                 cb.setChecked(p.is_enabled())
2337                 grid.addWidget(cb, i, 0)
2338                 if p.requires_settings():
2339                     w = p.settings_widget(self)
2340                     w.setEnabled( p.is_enabled() )
2341                     grid.addWidget(w, i, 1)
2342                 else:
2343                     w = None
2344                 cb.clicked.connect(mk_toggle(cb,p,w))
2345                 grid.addWidget(HelpButton(p.description()), i, 2)
2346             except Exception:
2347                 print_msg(_("Error: cannot display plugin"), p)
2348                 traceback.print_exc(file=sys.stdout)
2349         grid.setRowStretch(i+1,1)
2350
2351         vbox.addLayout(close_button(d))
2352
2353         d.exec_()
2354
2355
2356     def show_account_details(self, k):
2357         account = self.wallet.accounts[k]
2358
2359         d = QDialog(self)
2360         d.setWindowTitle(_('Account Details'))
2361         d.setModal(1)
2362
2363         vbox = QVBoxLayout(d)
2364         name = self.wallet.get_account_name(k)
2365         label = QLabel('Name: ' + name)
2366         vbox.addWidget(label)
2367
2368         vbox.addWidget(QLabel(_('Address type') + ': ' + account.get_type()))
2369
2370         vbox.addWidget(QLabel(_('Derivation') + ': ' + k))
2371
2372         vbox.addWidget(QLabel(_('Master Public Key:')))
2373
2374         text = QTextEdit()
2375         text.setReadOnly(True)
2376         text.setMaximumHeight(170)
2377         vbox.addWidget(text)
2378
2379         mpk_text = '\n'.join( account.get_master_pubkeys() )
2380         text.setText(mpk_text)
2381
2382         vbox.addLayout(close_button(d))
2383         d.exec_()