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319 lines
12 KiB
319 lines
12 KiB
#!/usr/bin/env python |
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# |
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# Electrum - lightweight Bitcoin client |
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# Copyright (C) 2012 thomasv@gitorious |
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# |
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# Permission is hereby granted, free of charge, to any person |
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# obtaining a copy of this software and associated documentation files |
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# (the "Software"), to deal in the Software without restriction, |
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# including without limitation the rights to use, copy, modify, merge, |
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# publish, distribute, sublicense, and/or sell copies of the Software, |
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# and to permit persons to whom the Software is furnished to do so, |
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# subject to the following conditions: |
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# |
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# The above copyright notice and this permission notice shall be |
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# included in all copies or substantial portions of the Software. |
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# |
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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# SOFTWARE. |
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import socket |
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from PyQt4.QtGui import * |
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from PyQt4.QtCore import * |
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from electrum.i18n import _ |
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from electrum.network import DEFAULT_PORTS |
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from electrum.network import serialize_server, deserialize_server |
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from util import * |
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protocol_names = ['TCP', 'SSL'] |
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protocol_letters = 'ts' |
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class NetworkDialog(WindowModalDialog): |
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def __init__(self, network, config, parent): |
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WindowModalDialog.__init__(self, parent, _('Network')) |
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self.setMinimumSize(400, 20) |
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self.nlayout = NetworkChoiceLayout(network, config) |
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vbox = QVBoxLayout(self) |
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vbox.addLayout(self.nlayout.layout()) |
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vbox.addLayout(Buttons(CancelButton(self), OkButton(self))) |
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def do_exec(self): |
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result = self.exec_() |
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if result: |
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self.nlayout.accept() |
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return result |
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class NetworkChoiceLayout(object): |
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def __init__(self, network, config, wizard=False): |
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self.network = network |
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self.config = config |
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self.protocol = None |
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self.tor_proxy = None |
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self.servers = network.get_servers() |
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host, port, protocol, proxy_config, auto_connect = network.get_parameters() |
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if not proxy_config: |
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proxy_config = { "mode":"none", "host":"localhost", "port":"9050"} |
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if not wizard: |
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n = len(network.get_interfaces()) |
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if n: |
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status = _("Blockchain") + ": " + "%d "%(network.get_local_height()) + _("blocks") + ".\n" + _("Getting block headers from %d nodes.")%n |
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else: |
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status = _("Not connected") |
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if network.is_connected(): |
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status += "\n" + _("Server") + ": %s"%(host) |
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else: |
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status += "\n" + _("Disconnected from server") |
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else: |
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status = _("Please choose a server.") + "\n" + _("Press 'Next' if you are offline.") |
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vbox = QVBoxLayout() |
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hbox = QHBoxLayout() |
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l = QLabel() |
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l.setPixmap(QPixmap(":icons/network.png")) |
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hbox.addStretch(10) |
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hbox.addWidget(l) |
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hbox.addWidget(QLabel(status)) |
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hbox.addStretch(50) |
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msg = _("Electrum sends your wallet addresses to a single server, in order to receive your transaction history.") + "\n\n" \ |
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+ _("In addition, Electrum connects to several nodes in order to download block headers and find out the longest blockchain.") + " " \ |
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+ _("This blockchain is used to verify the transactions sent by the address server.") |
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hbox.addWidget(HelpButton(msg)) |
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vbox.addLayout(hbox) |
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vbox.addSpacing(15) |
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# grid layout |
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grid = QGridLayout() |
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grid.setSpacing(8) |
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vbox.addLayout(grid) |
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# server |
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self.server_host = QLineEdit() |
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self.server_host.setFixedWidth(200) |
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self.server_port = QLineEdit() |
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self.server_port.setFixedWidth(60) |
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grid.addWidget(QLabel(_('Server') + ':'), 0, 0) |
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grid.addWidget(self.server_host, 0, 1, 1, 2) |
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grid.addWidget(self.server_port, 0, 3) |
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# use SSL |
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self.ssl_cb = QCheckBox(_('Use SSL')) |
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self.ssl_cb.setChecked(auto_connect) |
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grid.addWidget(self.ssl_cb, 0, 2, 1, 1, Qt.AlignRight) |
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self.ssl_cb.stateChanged.connect(self.change_protocol) |
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# auto connect |
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self.autoconnect_cb = QCheckBox(_('Select server automatically')) |
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self.autoconnect_cb.setChecked(auto_connect) |
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grid.addWidget(self.autoconnect_cb, 1, 1, 1, 3) |
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self.autoconnect_cb.setEnabled(self.config.is_modifiable('auto_connect')) |
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msg = _("If auto-connect is enabled, Electrum will always use a server that is on the longest blockchain.") + "\n" \ |
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+ _("If it is disabled, Electrum will warn you if your server is lagging.") |
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self.autoconnect_cb.setToolTip(msg) |
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label = _('Active Servers') if network.is_connected() else _('Default Servers') |
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self.servers_list_widget = QTreeWidget() |
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self.servers_list_widget.setHeaderLabels( [ label, _('Limit') ] ) |
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self.servers_list_widget.setMaximumHeight(150) |
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self.servers_list_widget.setColumnWidth(0, 240) |
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self.change_server(host, protocol) |
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self.set_protocol(protocol) |
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self.servers_list_widget.connect(self.servers_list_widget, |
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SIGNAL('currentItemChanged(QTreeWidgetItem*,QTreeWidgetItem*)'), |
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lambda x,y: self.server_changed(x)) |
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grid.addWidget(self.servers_list_widget, 2, 1, 1, 3) |
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def enable_set_server(): |
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if config.is_modifiable('server'): |
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enabled = not self.autoconnect_cb.isChecked() |
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self.server_host.setEnabled(enabled) |
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self.server_port.setEnabled(enabled) |
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self.servers_list_widget.setEnabled(enabled) |
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else: |
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for w in [self.autoconnect_cb, self.server_host, self.server_port, self.ssl_cb, self.servers_list_widget]: |
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w.setEnabled(False) |
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self.autoconnect_cb.clicked.connect(enable_set_server) |
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enable_set_server() |
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# proxy setting |
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self.proxy_mode = QComboBox() |
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self.proxy_host = QLineEdit() |
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self.proxy_host.setFixedWidth(200) |
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self.proxy_port = QLineEdit() |
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self.proxy_port.setFixedWidth(60) |
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self.proxy_mode.addItems(['NONE', 'SOCKS4', 'SOCKS5', 'HTTP']) |
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def check_for_disable(index = False): |
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if self.config.is_modifiable('proxy'): |
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if self.proxy_mode.currentText() != 'NONE': |
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self.proxy_host.setEnabled(True) |
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self.proxy_port.setEnabled(True) |
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else: |
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self.proxy_host.setEnabled(False) |
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self.proxy_port.setEnabled(False) |
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else: |
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for w in [self.proxy_host, self.proxy_port, self.proxy_mode]: w.setEnabled(False) |
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check_for_disable() |
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self.proxy_mode.connect(self.proxy_mode, SIGNAL('currentIndexChanged(int)'), check_for_disable) |
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self.proxy_mode.setCurrentIndex(self.proxy_mode.findText(str(proxy_config.get("mode").upper()))) |
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self.proxy_host.setText(proxy_config.get("host")) |
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self.proxy_port.setText(proxy_config.get("port")) |
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self.proxy_mode.connect(self.proxy_mode, SIGNAL('currentIndexChanged(int)'), self.proxy_settings_changed) |
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self.proxy_host.connect(self.proxy_host, SIGNAL('textEdited(QString)'), self.proxy_settings_changed) |
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self.proxy_port.connect(self.proxy_port, SIGNAL('textEdited(QString)'), self.proxy_settings_changed) |
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grid.addWidget(QLabel(_('Proxy') + ':'), 4, 0) |
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grid.addWidget(self.proxy_mode, 4, 1) |
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grid.addWidget(self.proxy_host, 4, 2) |
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grid.addWidget(self.proxy_port, 4, 3) |
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self.tor_button = QCheckBox("Use Tor Proxy") |
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self.tor_button.setIcon(QIcon(":icons/tor_logo.png")) |
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self.tor_button.hide() |
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self.tor_button.clicked.connect(self.use_tor_proxy) |
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grid.addWidget(self.tor_button, 5, 1, 1, 2) |
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self.layout_ = vbox |
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td = TorDetector() |
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td.found_proxy.connect(self.suggest_proxy) |
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td.start() |
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def layout(self): |
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return self.layout_ |
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def init_servers_list(self): |
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self.servers_list_widget.clear() |
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for _host, d in sorted(self.servers.items()): |
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if d.get(self.protocol): |
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pruning_level = d.get('pruning','') |
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self.servers_list_widget.addTopLevelItem(QTreeWidgetItem( [ _host, pruning_level ] )) |
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def set_protocol(self, protocol): |
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if protocol != self.protocol: |
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self.protocol = protocol |
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self.init_servers_list() |
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def change_protocol(self, use_ssl): |
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p = 's' if use_ssl else 't' |
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host = unicode(self.server_host.text()) |
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pp = self.servers.get(host, DEFAULT_PORTS) |
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if p not in pp.keys(): |
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p = pp.keys()[0] |
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port = pp[p] |
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self.server_host.setText( host ) |
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self.server_port.setText( port ) |
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self.set_protocol(p) |
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def server_changed(self, x): |
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if x: |
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self.change_server(str(x.text(0)), self.protocol) |
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def change_server(self, host, protocol): |
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pp = self.servers.get(host, DEFAULT_PORTS) |
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if protocol and protocol not in protocol_letters: |
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protocol = None |
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if protocol: |
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port = pp.get(protocol) |
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if port is None: |
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protocol = None |
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if not protocol: |
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if 's' in pp.keys(): |
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protocol = 's' |
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port = pp.get(protocol) |
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else: |
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protocol = pp.keys()[0] |
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port = pp.get(protocol) |
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self.server_host.setText( host ) |
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self.server_port.setText( port ) |
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self.ssl_cb.setChecked(protocol=='s') |
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def accept(self): |
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host = str(self.server_host.text()) |
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port = str(self.server_port.text()) |
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protocol = 's' if self.ssl_cb.isChecked() else 't' |
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# sanitize |
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try: |
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deserialize_server(serialize_server(host, port, protocol)) |
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except: |
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return |
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if self.proxy_mode.currentText() != 'NONE': |
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proxy = { 'mode':str(self.proxy_mode.currentText()).lower(), |
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'host':str(self.proxy_host.text()), |
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'port':str(self.proxy_port.text()) } |
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else: |
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proxy = None |
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auto_connect = self.autoconnect_cb.isChecked() |
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self.network.set_parameters(host, port, protocol, proxy, auto_connect) |
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def suggest_proxy(self, found_proxy): |
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self.tor_proxy = found_proxy |
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self.tor_button.setText("Use Tor proxy at port " + str(found_proxy[1])) |
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if self.proxy_mode.currentIndex() == 2 \ |
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and self.proxy_host.text() == "127.0.0.1" \ |
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and self.proxy_port.text() == str(found_proxy[1]): |
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self.tor_button.setChecked(True) |
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self.tor_button.show() |
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def use_tor_proxy(self, use_it): |
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# 2 = SOCKS5 |
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if not use_it: |
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self.proxy_mode.setCurrentIndex(0) |
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self.tor_button.setChecked(False) |
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else: |
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self.proxy_mode.setCurrentIndex(2) |
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self.proxy_host.setText("127.0.0.1") |
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self.proxy_port.setText(str(self.tor_proxy[1])) |
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self.tor_button.setChecked(True) |
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def proxy_settings_changed(self): |
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self.tor_button.setChecked(False) |
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class TorDetector(QThread): |
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found_proxy = pyqtSignal(object) |
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def __init__(self): |
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QThread.__init__(self) |
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def run(self): |
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# Probable ports for Tor to listen at |
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ports = [9050, 9150] |
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for p in ports: |
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if TorDetector.is_tor_port(p): |
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self.found_proxy.emit(("127.0.0.1", p)) |
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return |
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@staticmethod |
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def is_tor_port(port): |
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try: |
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s = socket._socketobject(socket.AF_INET, socket.SOCK_STREAM) |
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s.settimeout(0.1) |
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s.connect(("127.0.0.1", port)) |
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# Tor responds uniquely to HTTP-like requests |
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s.send("GET\n") |
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if "Tor is not an HTTP Proxy" in s.recv(1024): |
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return True |
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except socket.error: |
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pass |
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return False
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