#!/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 <http://www.gnu.org/licenses/>.
import sys, time, datetime, re, threading
from electrum.i18n import _
from electrum.util import print_error, print_msg
import os.path, json, ast, traceback
from PyQt4.QtGui import *
from PyQt4.QtCore import *
from electrum import DEFAULT_SERVERS, DEFAULT_PORTS
from util import *
protocol_names = ['TCP', 'HTTP', 'SSL', 'HTTPS']
protocol_letters = 'thsg'
class NetworkDialog(QDialog):
def __init__(self, network, config, parent):
QDialog.__init__(self,parent)
self.setModal(1)
self.setWindowTitle(_('Network'))
self.setMinimumSize(375, 20)
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":"8080"}
if parent:
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()
vbox.setSpacing(30)
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)
# grid layout
grid = QGridLayout()
grid.setSpacing(8)
vbox.addLayout(grid)
# protocol
self.server_protocol = QComboBox()
self.server_host = QLineEdit()
self.server_host.setFixedWidth(200)
self.server_port = QLineEdit()
self.server_port.setFixedWidth(60)
self.server_protocol.addItems(protocol_names)
self.server_protocol.connect(self.server_protocol, SIGNAL('currentIndexChanged(int)'), self.change_protocol)
grid.addWidget(QLabel(_('Protocol') + ':'), 3, 0)
grid.addWidget(self.server_protocol, 3, 1)
# server
grid.addWidget(QLabel(_('Server') + ':'), 0, 0)
# auto connect
self.autocycle_cb = QCheckBox(_('Auto-connect'))
self.autocycle_cb.setChecked(auto_connect)
grid.addWidget(self.autocycle_cb, 0, 1)
if not self.config.is_modifiable('auto_cycle'): self.autocycle_cb.setEnabled(False)
msg = _("If auto-connect is enabled, Electrum will always use a server that is on the longest blockchain.") + " " \
+ _("If it is disabled, Electrum will warn you if your server is lagging.")
grid.addWidget(HelpButton(msg), 0, 4)
grid.addWidget(self.server_host, 0, 2, 1, 2)
grid.addWidget(self.server_port, 0, 3)
label = _('Active Servers') if network.is_connected() else _('Default Servers')
self.servers_list_widget = QTreeWidget(parent)
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, 1, 1, 1, 3)
if not config.is_modifiable('server'):
for w in [self.server_host, self.server_port, self.server_protocol, self.servers_list_widget]: w.setEnabled(False)
def enable_set_server():
enabled = not self.autocycle_cb.isChecked()
self.server_host.setEnabled(enabled)
self.server_port.setEnabled(enabled)
self.servers_list_widget.setEnabled(enabled)
self.autocycle_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.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)
check_for_disable()
self.proxy_mode.connect(self.proxy_mode, SIGNAL('currentIndexChanged(int)'), check_for_disable)
if not self.config.is_modifiable('proxy'):
for w in [self.proxy_host, self.proxy_port, self.proxy_mode]: w.setEnabled(False)
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)
# buttons
vbox.addLayout(ok_cancel_buttons(self))
self.setLayout(vbox)
def init_servers_list(self):
self.servers_list_widget.clear()
for _host, d in 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, index):
p = protocol_letters[index]
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:
port = pp.get(protocol)
if not port: 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.server_protocol.setCurrentIndex(protocol_letters.index(protocol))
if not self.servers: return
for p in protocol_letters:
i = protocol_letters.index(p)
j = self.server_protocol.model().index(i,0)
#if p not in pp.keys(): # and self.interface.is_connected:
# self.server_protocol.model().setData(j, QVariant(0), Qt.UserRole-1)
#else:
# self.server_protocol.model().setData(j, QVariant(33), Qt.UserRole-1)
def do_exec(self):
if not self.exec_():
return
host = str( self.server_host.text() )
port = str( self.server_port.text() )
protocol = protocol_letters[self.server_protocol.currentIndex()]
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.autocycle_cb.isChecked()
self.network.set_parameters(host, port, protocol, proxy, auto_connect)
return True