#!/usr/bin/env python # # Electrum - lightweight Bitcoin client # Copyright (C) 2012 thomasv@gitorious # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . from PyQt4.QtGui import * from PyQt4.QtCore import * from electrum.i18n import _ from electrum import DEFAULT_PORTS from electrum.network import serialize_server, deserialize_server from util import * protocol_names = ['TCP', 'SSL'] protocol_letters = 'ts' class NetworkDialog(WindowModalDialog): def __init__(self, network, config, parent): WindowModalDialog.__init__(self, parent, _('Network')) self.setMinimumSize(375, 20) self.nlayout = NetworkChoiceLayout(network, config) vbox = QVBoxLayout(self) vbox.addLayout(self.nlayout.layout()) vbox.addLayout(Buttons(CancelButton(self), OkButton(self))) def do_exec(self): result = self.exec_() if result: self.nlayout.accept() return result class NetworkChoiceLayout(object): def __init__(self, network, config, wizard=False): self.network = network self.config = config self.protocol = None self.servers = network.get_servers() host, port, protocol, proxy_config, auto_connect = network.get_parameters() if not proxy_config: proxy_config = { "mode":"none", "host":"localhost", "port":"9050"} if not wizard: n = len(network.get_interfaces()) if n: status = _("Blockchain") + ": " + "%d "%(network.get_local_height()) + _("blocks") + ".\n" + _("Getting block headers from %d nodes.")%n else: status = _("Not connected") if network.is_connected(): status += "\n" + _("Server") + ": %s"%(host) else: status += "\n" + _("Disconnected from server") else: status = _("Please choose a server.") + "\n" + _("Select 'Cancel' if you are offline.") vbox = QVBoxLayout() hbox = QHBoxLayout() l = QLabel() l.setPixmap(QPixmap(":icons/network.png")) hbox.addStretch(10) hbox.addWidget(l) hbox.addWidget(QLabel(status)) hbox.addStretch(50) msg = _("Electrum sends your wallet addresses to a single server, in order to receive your transaction history.") + "\n\n" \ + _("In addition, Electrum connects to several nodes in order to download block headers and find out the longest blockchain.") + " " \ + _("This blockchain is used to verify the transactions sent by the address server.") hbox.addWidget(HelpButton(msg)) vbox.addLayout(hbox) vbox.addSpacing(15) # grid layout grid = QGridLayout() grid.setSpacing(8) vbox.addLayout(grid) # server self.server_host = QLineEdit() self.server_host.setFixedWidth(200) self.server_port = QLineEdit() self.server_port.setFixedWidth(60) grid.addWidget(QLabel(_('Server') + ':'), 0, 0) grid.addWidget(self.server_host, 0, 1, 1, 2) grid.addWidget(self.server_port, 0, 3) # use SSL self.ssl_cb = QCheckBox(_('Use SSL')) self.ssl_cb.setChecked(auto_connect) grid.addWidget(self.ssl_cb, 3, 1, 1, 3) self.ssl_cb.stateChanged.connect(self.change_protocol) # auto connect self.autoconnect_cb = QCheckBox(_('Select server automatically')) self.autoconnect_cb.setChecked(auto_connect) grid.addWidget(self.autoconnect_cb, 1, 1, 1, 3) self.autoconnect_cb.setEnabled(self.config.is_modifiable('auto_connect')) msg = _("If auto-connect is enabled, Electrum will always use a server that is on the longest blockchain.") + "\n" \ + _("If it is disabled, Electrum will warn you if your server is lagging.") self.autoconnect_cb.setToolTip(msg) label = _('Active Servers') if network.is_connected() else _('Default Servers') self.servers_list_widget = QTreeWidget() self.servers_list_widget.setHeaderLabels( [ label, _('Limit') ] ) self.servers_list_widget.setMaximumHeight(150) self.servers_list_widget.setColumnWidth(0, 240) self.change_server(host, protocol) self.set_protocol(protocol) self.servers_list_widget.connect(self.servers_list_widget, SIGNAL('currentItemChanged(QTreeWidgetItem*,QTreeWidgetItem*)'), lambda x,y: self.server_changed(x)) grid.addWidget(self.servers_list_widget, 2, 1, 1, 3) def enable_set_server(): if config.is_modifiable('server'): enabled = not self.autoconnect_cb.isChecked() self.server_host.setEnabled(enabled) self.server_port.setEnabled(enabled) self.servers_list_widget.setEnabled(enabled) else: for w in [self.autoconnect_cb, self.server_host, self.server_port, self.ssl_cb, self.servers_list_widget]: w.setEnabled(False) self.autoconnect_cb.clicked.connect(enable_set_server) enable_set_server() # proxy setting self.proxy_mode = QComboBox() self.proxy_host = QLineEdit() self.proxy_host.setFixedWidth(200) self.proxy_port = QLineEdit() self.proxy_port.setFixedWidth(60) self.proxy_mode.addItems(['NONE', 'SOCKS4', 'SOCKS5', 'HTTP']) def check_for_disable(index = False): if self.config.is_modifiable('proxy'): if self.proxy_mode.currentText() != 'NONE': self.proxy_host.setEnabled(True) self.proxy_port.setEnabled(True) else: self.proxy_host.setEnabled(False) self.proxy_port.setEnabled(False) else: for w in [self.proxy_host, self.proxy_port, self.proxy_mode]: w.setEnabled(False) check_for_disable() self.proxy_mode.connect(self.proxy_mode, SIGNAL('currentIndexChanged(int)'), check_for_disable) self.proxy_mode.setCurrentIndex(self.proxy_mode.findText(str(proxy_config.get("mode").upper()))) self.proxy_host.setText(proxy_config.get("host")) self.proxy_port.setText(proxy_config.get("port")) grid.addWidget(QLabel(_('Proxy') + ':'), 4, 0) grid.addWidget(self.proxy_mode, 4, 1) grid.addWidget(self.proxy_host, 4, 2) grid.addWidget(self.proxy_port, 4, 3) self.layout_ = vbox def layout(self): return self.layout_ def init_servers_list(self): self.servers_list_widget.clear() for _host, d in sorted(self.servers.items()): if d.get(self.protocol): pruning_level = d.get('pruning','') self.servers_list_widget.addTopLevelItem(QTreeWidgetItem( [ _host, pruning_level ] )) def set_protocol(self, protocol): if protocol != self.protocol: self.protocol = protocol self.init_servers_list() def change_protocol(self, use_ssl): p = 's' if use_ssl else 't' host = unicode(self.server_host.text()) pp = self.servers.get(host, DEFAULT_PORTS) if p not in pp.keys(): p = pp.keys()[0] port = pp[p] self.server_host.setText( host ) self.server_port.setText( port ) self.set_protocol(p) def server_changed(self, x): if x: self.change_server(str(x.text(0)), self.protocol) def change_server(self, host, protocol): pp = self.servers.get(host, DEFAULT_PORTS) if protocol and protocol not in protocol_letters: protocol = None if protocol: port = pp.get(protocol) if port is None: protocol = None if not protocol: if 's' in pp.keys(): protocol = 's' port = pp.get(protocol) else: protocol = pp.keys()[0] port = pp.get(protocol) self.server_host.setText( host ) self.server_port.setText( port ) self.ssl_cb.setChecked(protocol=='s') def accept(self): host = str(self.server_host.text()) port = str(self.server_port.text()) protocol = 's' if self.ssl_cb.isChecked() else 't' # sanitize try: deserialize_server(serialize_server(host, port, protocol)) except: return if self.proxy_mode.currentText() != 'NONE': proxy = { 'mode':str(self.proxy_mode.currentText()).lower(), 'host':str(self.proxy_host.text()), 'port':str(self.proxy_port.text()) } else: proxy = None auto_connect = self.autoconnect_cb.isChecked() self.network.set_parameters(host, port, protocol, proxy, auto_connect)