async def get_peers(network: Network): while not network.is_connected(): await asyncio.sleep(1) print("waiting for network to get connected...") interface = network.interface session = interface.session print(f"asking server {interface.server} for its peers") peers = parse_servers(await session.send_request('server.peers.subscribe')) print(f"got {len(peers)} servers") return peers
async def get_peers(network: Network): while not network.is_connected(): await asyncio.sleep(1) print("waiting for network to get connected...") interface = network.interface session = interface.session print(f"asking server {interface.server} for its peers") peers = parse_servers(await session.send_request('server.peers.subscribe')) print(f"got {len(peers)} servers") return peers
def __init__(self, network: Network, config, wizard=False): self.network = network self.config = config self.protocol = None self.tor_proxy = None self.tabs = tabs = QTabWidget() server_tab = QWidget() proxy_tab = QWidget() blockchain_tab = QWidget() tabs.addTab(blockchain_tab, _('Overview')) tabs.addTab(server_tab, _('Server')) tabs.addTab(proxy_tab, _('Proxy')) fixed_width_hostname = 24 * char_width_in_lineedit() fixed_width_port = 6 * char_width_in_lineedit() # server tab grid = QGridLayout(server_tab) grid.setSpacing(8) self.server_host = QLineEdit() self.server_host.setFixedWidth(fixed_width_hostname) self.server_port = QLineEdit() self.server_port.setFixedWidth(fixed_width_port) self.autoconnect_cb = QCheckBox(_('Select server automatically')) self.autoconnect_cb.setEnabled( self.config.is_modifiable('auto_connect')) self.server_host.editingFinished.connect(self.set_server) self.server_port.editingFinished.connect(self.set_server) self.autoconnect_cb.clicked.connect(self.set_server) self.autoconnect_cb.clicked.connect(self.update) msg = ' '.join([ _("If auto-connect is enabled, Electrum-CHI will always use a server that is on the longest blockchain." ), _("If it is disabled, you have to choose a server you want to use. Electrum-CHI will warn you if your server is lagging." ) ]) grid.addWidget(self.autoconnect_cb, 0, 0, 1, 3) grid.addWidget(HelpButton(msg), 0, 4) grid.addWidget(QLabel(_('Server') + ':'), 1, 0) grid.addWidget(self.server_host, 1, 1, 1, 2) grid.addWidget(self.server_port, 1, 3) label = _('Server peers') if network.is_connected() else _( 'Default Servers') grid.addWidget(QLabel(label), 2, 0, 1, 5) self.servers_list = ServerListWidget(self) grid.addWidget(self.servers_list, 3, 0, 1, 5) # Proxy tab grid = QGridLayout(proxy_tab) grid.setSpacing(8) # proxy setting self.proxy_cb = QCheckBox(_('Use proxy')) self.proxy_cb.clicked.connect(self.check_disable_proxy) self.proxy_cb.clicked.connect(self.set_proxy) self.proxy_mode = QComboBox() self.proxy_mode.addItems(['SOCKS4', 'SOCKS5']) self.proxy_host = QLineEdit() self.proxy_host.setFixedWidth(fixed_width_hostname) self.proxy_port = QLineEdit() self.proxy_port.setFixedWidth(fixed_width_port) self.proxy_user = QLineEdit() self.proxy_user.setPlaceholderText(_("Proxy user")) self.proxy_password = QLineEdit() self.proxy_password.setPlaceholderText(_("Password")) self.proxy_password.setEchoMode(QLineEdit.Password) self.proxy_password.setFixedWidth(fixed_width_port) self.proxy_mode.currentIndexChanged.connect(self.set_proxy) self.proxy_host.editingFinished.connect(self.set_proxy) self.proxy_port.editingFinished.connect(self.set_proxy) self.proxy_user.editingFinished.connect(self.set_proxy) self.proxy_password.editingFinished.connect(self.set_proxy) self.proxy_mode.currentIndexChanged.connect( self.proxy_settings_changed) self.proxy_host.textEdited.connect(self.proxy_settings_changed) self.proxy_port.textEdited.connect(self.proxy_settings_changed) self.proxy_user.textEdited.connect(self.proxy_settings_changed) self.proxy_password.textEdited.connect(self.proxy_settings_changed) self.tor_cb = QCheckBox(_("Use Tor Proxy")) self.tor_cb.setIcon(read_QIcon("tor_logo.png")) self.tor_cb.hide() self.tor_cb.clicked.connect(self.use_tor_proxy) grid.addWidget(self.tor_cb, 1, 0, 1, 3) grid.addWidget(self.proxy_cb, 2, 0, 1, 3) grid.addWidget( HelpButton( _('Proxy settings apply to all connections: with Electrum-CHI servers, but also with third-party services.' )), 2, 4) grid.addWidget(self.proxy_mode, 4, 1) grid.addWidget(self.proxy_host, 4, 2) grid.addWidget(self.proxy_port, 4, 3) grid.addWidget(self.proxy_user, 5, 2) grid.addWidget(self.proxy_password, 5, 3) grid.setRowStretch(7, 1) # Blockchain Tab grid = QGridLayout(blockchain_tab) msg = ' '.join([ _("Electrum-CHI 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 your transaction server." ) ]) self.status_label = QLabel('') grid.addWidget(QLabel(_('Status') + ':'), 0, 0) grid.addWidget(self.status_label, 0, 1, 1, 3) grid.addWidget(HelpButton(msg), 0, 4) self.server_label = QLabel('') msg = _( "Electrum-CHI sends your wallet addresses to a single server, in order to receive your transaction history." ) grid.addWidget(QLabel(_('Server') + ':'), 1, 0) grid.addWidget(self.server_label, 1, 1, 1, 3) grid.addWidget(HelpButton(msg), 1, 4) self.height_label = QLabel('') msg = _('This is the height of your local copy of the blockchain.') grid.addWidget(QLabel(_('Blockchain') + ':'), 2, 0) grid.addWidget(self.height_label, 2, 1) grid.addWidget(HelpButton(msg), 2, 4) self.split_label = QLabel('') grid.addWidget(self.split_label, 3, 0, 1, 3) self.nodes_list_widget = NodesListWidget(self) grid.addWidget(self.nodes_list_widget, 5, 0, 1, 5) vbox = QVBoxLayout() vbox.addWidget(tabs) self.layout_ = vbox # tor detector self.td = td = TorDetector() td.found_proxy.connect(self.suggest_proxy) td.start() self.fill_in_proxy_settings() self.update()
def __init__(self, network: Network, config, wizard=False): self.network = network self.config = config self.protocol = None self.tor_proxy = None self.tabs = tabs = QTabWidget() server_tab = QWidget() proxy_tab = QWidget() blockchain_tab = QWidget() tabs.addTab(blockchain_tab, _('Overview')) tabs.addTab(server_tab, _('Server')) tabs.addTab(proxy_tab, _('Proxy')) # server tab grid = QGridLayout(server_tab) grid.setSpacing(8) self.server_host = QLineEdit() self.server_host.setFixedWidth(200) self.server_port = QLineEdit() self.server_port.setFixedWidth(60) self.autoconnect_cb = QCheckBox(_('Select server automatically')) self.autoconnect_cb.setEnabled(self.config.is_modifiable('auto_connect')) self.server_host.editingFinished.connect(self.set_server) self.server_port.editingFinished.connect(self.set_server) self.autoconnect_cb.clicked.connect(self.set_server) self.autoconnect_cb.clicked.connect(self.update) msg = ' '.join([ _("If auto-connect is enabled, Electrum will always use a server that is on the longest blockchain."), _("If it is disabled, you have to choose a server you want to use. Electrum will warn you if your server is lagging.") ]) grid.addWidget(self.autoconnect_cb, 0, 0, 1, 3) grid.addWidget(HelpButton(msg), 0, 4) grid.addWidget(QLabel(_('Server') + ':'), 1, 0) grid.addWidget(self.server_host, 1, 1, 1, 2) grid.addWidget(self.server_port, 1, 3) label = _('Server peers') if network.is_connected() else _('Default Servers') grid.addWidget(QLabel(label), 2, 0, 1, 5) self.servers_list = ServerListWidget(self) grid.addWidget(self.servers_list, 3, 0, 1, 5) # Proxy tab grid = QGridLayout(proxy_tab) grid.setSpacing(8) # proxy setting self.proxy_cb = QCheckBox(_('Use proxy')) self.proxy_cb.clicked.connect(self.check_disable_proxy) self.proxy_cb.clicked.connect(self.set_proxy) self.proxy_mode = QComboBox() self.proxy_mode.addItems(['SOCKS4', 'SOCKS5']) self.proxy_host = QLineEdit() self.proxy_host.setFixedWidth(200) self.proxy_port = QLineEdit() self.proxy_port.setFixedWidth(60) self.proxy_user = QLineEdit() self.proxy_user.setPlaceholderText(_("Proxy user")) self.proxy_password = QLineEdit() self.proxy_password.setPlaceholderText(_("Password")) self.proxy_password.setEchoMode(QLineEdit.Password) self.proxy_password.setFixedWidth(60) self.proxy_mode.currentIndexChanged.connect(self.set_proxy) self.proxy_host.editingFinished.connect(self.set_proxy) self.proxy_port.editingFinished.connect(self.set_proxy) self.proxy_user.editingFinished.connect(self.set_proxy) self.proxy_password.editingFinished.connect(self.set_proxy) self.proxy_mode.currentIndexChanged.connect(self.proxy_settings_changed) self.proxy_host.textEdited.connect(self.proxy_settings_changed) self.proxy_port.textEdited.connect(self.proxy_settings_changed) self.proxy_user.textEdited.connect(self.proxy_settings_changed) self.proxy_password.textEdited.connect(self.proxy_settings_changed) self.tor_cb = QCheckBox(_("Use Tor Proxy")) self.tor_cb.setIcon(QIcon(":icons/tor_logo.png")) self.tor_cb.hide() self.tor_cb.clicked.connect(self.use_tor_proxy) grid.addWidget(self.tor_cb, 1, 0, 1, 3) grid.addWidget(self.proxy_cb, 2, 0, 1, 3) grid.addWidget(HelpButton(_('Proxy settings apply to all connections: with Electrum servers, but also with third-party services.')), 2, 4) grid.addWidget(self.proxy_mode, 4, 1) grid.addWidget(self.proxy_host, 4, 2) grid.addWidget(self.proxy_port, 4, 3) grid.addWidget(self.proxy_user, 5, 2) grid.addWidget(self.proxy_password, 5, 3) grid.setRowStretch(7, 1) # Blockchain Tab grid = QGridLayout(blockchain_tab) msg = ' '.join([ _("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 your transaction server.") ]) self.status_label = QLabel('') grid.addWidget(QLabel(_('Status') + ':'), 0, 0) grid.addWidget(self.status_label, 0, 1, 1, 3) grid.addWidget(HelpButton(msg), 0, 4) self.server_label = QLabel('') msg = _("Electrum sends your wallet addresses to a single server, in order to receive your transaction history.") grid.addWidget(QLabel(_('Server') + ':'), 1, 0) grid.addWidget(self.server_label, 1, 1, 1, 3) grid.addWidget(HelpButton(msg), 1, 4) self.height_label = QLabel('') msg = _('This is the height of your local copy of the blockchain.') grid.addWidget(QLabel(_('Blockchain') + ':'), 2, 0) grid.addWidget(self.height_label, 2, 1) grid.addWidget(HelpButton(msg), 2, 4) self.split_label = QLabel('') grid.addWidget(self.split_label, 3, 0, 1, 3) self.nodes_list_widget = NodesListWidget(self) grid.addWidget(self.nodes_list_widget, 5, 0, 1, 5) vbox = QVBoxLayout() vbox.addWidget(tabs) self.layout_ = vbox # tor detector self.td = td = TorDetector() td.found_proxy.connect(self.suggest_proxy) td.start() self.fill_in_proxy_settings() self.update()
# A simple script that connects to a server and displays block headers import time import asyncio from electrum.network import Network from electrum.util import print_msg, json_encode, create_and_start_event_loop, log_exceptions # start network loop, stopping_fut, loop_thread = create_and_start_event_loop() network = Network() network.start() # wait until connected while not network.is_connected(): time.sleep(1) print_msg("waiting for network to get connected...") header_queue = asyncio.Queue() @log_exceptions async def f(): try: await network.interface.session.subscribe( 'blockchain.headers.subscribe', [], header_queue) # 3. wait for results while network.is_connected(): header = await header_queue.get() print_msg(json_encode(header))