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path: root/deluge/ui/gtk3/peers_tab.py
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# -*- coding: utf-8 -*-
#
# Copyright (C) 2008 Andrew Resch <andrewresch@gmail.com>
#
# This file is part of Deluge and is licensed under GNU General Public License 3.0, or later, with
# the additional special exception to link portions of this program with the OpenSSL library.
# See LICENSE for more details.
#

from __future__ import unicode_literals

import logging
import os.path

from gi.repository.GdkPixbuf import Pixbuf
from gi.repository.Gtk import (
    Builder,
    CellRendererPixbuf,
    CellRendererProgress,
    CellRendererText,
    ListStore,
    TreeViewColumn,
    TreeViewColumnSizing,
)

import deluge.common
import deluge.component as component
from deluge.ui.client import client
from deluge.ui.countries import COUNTRIES

from .common import (
    icon_downloading,
    icon_seeding,
    load_pickled_state_file,
    parse_ip_port,
    save_pickled_state_file,
)
from .torrentdetails import Tab
from .torrentview_data_funcs import (
    cell_data_peer_progress,
    cell_data_speed_down,
    cell_data_speed_up,
)

try:
    from future_builtins import zip
except ImportError:
    # Ignore on Py3.
    pass

log = logging.getLogger(__name__)


class PeersTab(Tab):
    def __init__(self):
        super(PeersTab, self).__init__('Peers', 'peers_tab', 'peers_tab_label')

        self.peer_menu = self.main_builder.get_object('menu_peer_tab')
        component.get('MainWindow').connect_signals(self)

        self.listview = self.main_builder.get_object('peers_listview')
        self.listview.props.has_tooltip = True
        self.listview.connect('button-press-event', self._on_button_press_event)
        self.listview.connect('query-tooltip', self._on_query_tooltip)

        # flag, ip, client, downspd, upspd, country code, int_ip, seed/peer icon, progress
        self.liststore = ListStore(
            Pixbuf, str, str, int, int, str, float, Pixbuf, float
        )
        self.cached_flag_pixbufs = {}

        self.seed_pixbuf = icon_seeding
        self.peer_pixbuf = icon_downloading

        # key is ip address, item is row iter
        self.peers = {}

        # Country column
        column = TreeViewColumn()
        render = CellRendererPixbuf()
        column.pack_start(render, False)
        column.add_attribute(render, 'pixbuf', 0)
        column.set_sort_column_id(5)
        column.set_clickable(True)
        column.set_resizable(True)
        column.set_expand(False)
        column.set_min_width(20)
        column.set_reorderable(True)
        self.listview.append_column(column)

        # Address column
        column = TreeViewColumn(_('Address'))
        render = CellRendererPixbuf()
        column.pack_start(render, False)
        column.add_attribute(render, 'pixbuf', 7)
        render = CellRendererText()
        column.pack_start(render, False)
        column.add_attribute(render, 'text', 1)
        column.set_sort_column_id(6)
        column.set_clickable(True)
        column.set_resizable(True)
        column.set_expand(False)
        column.set_min_width(100)
        column.set_reorderable(True)
        self.listview.append_column(column)

        # Client column
        column = TreeViewColumn(_('Client'))
        render = CellRendererText()
        column.pack_start(render, False)
        column.add_attribute(render, 'text', 2)
        column.set_sort_column_id(2)
        column.set_clickable(True)
        column.set_resizable(True)
        column.set_expand(False)
        column.set_min_width(100)
        column.set_reorderable(True)
        self.listview.append_column(column)

        # Progress column
        column = TreeViewColumn(_('Progress'))
        render = CellRendererProgress()
        column.pack_start(render, True)
        column.set_cell_data_func(render, cell_data_peer_progress, 8)
        column.set_sort_column_id(8)
        column.set_clickable(True)
        column.set_resizable(True)
        column.set_expand(False)
        column.set_min_width(100)
        column.set_reorderable(True)
        self.listview.append_column(column)

        # Down Speed column
        column = TreeViewColumn(_('Down Speed'))
        render = CellRendererText()
        column.pack_start(render, False)
        column.set_cell_data_func(render, cell_data_speed_down, 3)
        column.set_sort_column_id(3)
        column.set_clickable(True)
        column.set_resizable(True)
        column.set_expand(False)
        column.set_min_width(50)
        column.set_reorderable(True)
        self.listview.append_column(column)

        # Up Speed column
        column = TreeViewColumn(_('Up Speed'))
        render = CellRendererText()
        column.pack_start(render, False)
        column.set_cell_data_func(render, cell_data_speed_up, 4)
        column.set_sort_column_id(4)
        column.set_clickable(True)
        column.set_resizable(True)
        column.set_expand(False)
        column.set_min_width(50)
        # Bugfix: Last column needs max_width set to stop scrollbar appearing
        column.set_max_width(150)
        column.set_reorderable(True)
        self.listview.append_column(column)

        self.listview.set_model(self.liststore)

        self.load_state()

        self.torrent_id = None

    def save_state(self):
        # Get the current sort order of the view
        column_id, sort_order = self.liststore.get_sort_column_id()

        # Setup state dict
        state = {
            'columns': {},
            'sort_id': column_id,
            'sort_order': int(sort_order) if sort_order else None,
        }

        for index, column in enumerate(self.listview.get_columns()):
            state['columns'][column.get_title()] = {
                'position': index,
                'width': column.get_width(),
            }
        save_pickled_state_file('peers_tab.state', state)

    def load_state(self):
        state = load_pickled_state_file('peers_tab.state')

        if state is None:
            return

        if len(state['columns']) != len(self.listview.get_columns()):
            log.warning('peers_tab.state is not compatible! rejecting..')
            return

        if state['sort_id'] and state['sort_order'] is not None:
            self.liststore.set_sort_column_id(state['sort_id'], state['sort_order'])

        for (index, column) in enumerate(self.listview.get_columns()):
            cname = column.get_title()
            if cname in state['columns']:
                cstate = state['columns'][cname]
                column.set_sizing(TreeViewColumnSizing.FIXED)
                column.set_fixed_width(cstate['width'] if cstate['width'] > 0 else 10)
                if state['sort_id'] == index and state['sort_order'] is not None:
                    column.set_sort_indicator(True)
                    column.set_sort_order(state['sort_order'])
                if cstate['position'] != index:
                    # Column is in wrong position
                    if cstate['position'] == 0:
                        self.listview.move_column_after(column, None)
                    elif (
                        self.listview.get_columns()[cstate['position'] - 1].get_title()
                        != cname
                    ):
                        self.listview.move_column_after(
                            column, self.listview.get_columns()[cstate['position'] - 1]
                        )

    def update(self):
        # Get the first selected torrent
        torrent_id = component.get('TorrentView').get_selected_torrents()

        # Only use the first torrent in the list or return if None selected
        if len(torrent_id) != 0:
            torrent_id = torrent_id[0]
        else:
            # No torrent is selected in the torrentview
            self.liststore.clear()
            return

        if torrent_id != self.torrent_id:
            # We only want to do this if the torrent_id has changed
            self.liststore.clear()
            self.peers = {}
            self.torrent_id = torrent_id

        component.get('SessionProxy').get_torrent_status(
            torrent_id, ['peers']
        ).addCallback(self._on_get_torrent_status)

    def get_flag_pixbuf(self, country):
        if not country.strip():
            return None

        if country not in self.cached_flag_pixbufs:
            # We haven't created a pixbuf for this country yet
            try:
                self.cached_flag_pixbufs[country] = Pixbuf.new_from_file(
                    deluge.common.resource_filename(
                        'deluge',
                        os.path.join(
                            'ui', 'data', 'pixmaps', 'flags', country.lower() + '.png'
                        ),
                    )
                )
            except Exception as ex:
                log.debug('Unable to load flag: %s', ex)
                return None

        return self.cached_flag_pixbufs[country]

    def _on_get_torrent_status(self, status):
        new_ips = set()
        for peer in status['peers']:
            new_ips.add(peer['ip'])
            if peer['ip'] in self.peers:
                # We already have this peer in our list, so lets just update it
                row = self.peers[peer['ip']]
                if not self.liststore.iter_is_valid(row):
                    # This iter is invalid, delete it and continue to next iteration
                    del self.peers[peer['ip']]
                    continue
                values = self.liststore.get(row, 3, 4, 5, 7, 8)
                if peer['down_speed'] != values[0]:
                    self.liststore.set_value(row, 3, peer['down_speed'])
                if peer['up_speed'] != values[1]:
                    self.liststore.set_value(row, 4, peer['up_speed'])
                if peer['country'] != values[2]:
                    self.liststore.set_value(row, 5, peer['country'])
                    self.liststore.set_value(
                        row, 0, self.get_flag_pixbuf(peer['country'])
                    )
                if peer['seed']:
                    icon = self.seed_pixbuf
                else:
                    icon = self.peer_pixbuf

                if icon != values[3]:
                    self.liststore.set_value(row, 7, icon)

                if peer['progress'] != values[4]:
                    self.liststore.set_value(row, 8, peer['progress'])
            else:
                # Peer is not in list so we need to add it

                # Create an int IP address for sorting purposes
                if peer['ip'].count(':') == 1:
                    # This is an IPv4 address
                    ip_int = sum(
                        int(byte) << shift
                        for byte, shift in zip(
                            peer['ip'].split(':')[0].split('.'), (24, 16, 8, 0)
                        )
                    )
                    peer_ip = peer['ip']
                else:
                    # This is an IPv6 address
                    import binascii
                    import socket

                    # Split out the :port
                    ip = ':'.join(peer['ip'].split(':')[:-1])
                    ip_int = int(
                        binascii.hexlify(socket.inet_pton(socket.AF_INET6, ip)), 16
                    )
                    peer_ip = '[%s]:%s' % (ip, peer['ip'].split(':')[-1])

                if peer['seed']:
                    icon = self.seed_pixbuf
                else:
                    icon = self.peer_pixbuf

                row = self.liststore.append(
                    [
                        self.get_flag_pixbuf(peer['country']),
                        peer_ip,
                        peer['client'],
                        peer['down_speed'],
                        peer['up_speed'],
                        peer['country'],
                        float(ip_int),
                        icon,
                        peer['progress'],
                    ]
                )

                self.peers[peer['ip']] = row

        # Now we need to remove any ips that were not in status["peers"] list
        for ip in set(self.peers).difference(new_ips):
            self.liststore.remove(self.peers[ip])
            del self.peers[ip]

    def clear(self):
        self.liststore.clear()

    def _on_button_press_event(self, widget, event):
        """This is a callback for showing the right-click context menu."""
        log.debug('on_button_press_event')
        # We only care about right-clicks
        if self.torrent_id and event.button == 3:
            self.peer_menu.popup(None, None, None, None, event.button, event.time)
            return True

    def _on_query_tooltip(self, widget, x, y, keyboard_tip, tooltip):
        is_tooltip, x, y, model, path, _iter = widget.get_tooltip_context(
            x, y, keyboard_tip
        )
        if is_tooltip:
            country_code = model.get(_iter, 5)[0]
            if country_code != '  ' and country_code in COUNTRIES:
                tooltip.set_text(COUNTRIES[country_code])
                # widget here is self.listview
                widget.set_tooltip_cell(tooltip, path, widget.get_column(0), None)
                return True
        return False

    def on_menuitem_add_peer_activate(self, menuitem):
        """This is a callback for manually adding a peer"""
        log.debug('on_menuitem_add_peer')
        builder = Builder()
        builder.add_from_file(
            deluge.common.resource_filename(
                __package__, os.path.join('glade', 'connect_peer_dialog.ui')
            )
        )
        peer_dialog = builder.get_object('connect_peer_dialog')
        txt_ip = builder.get_object('txt_ip')
        response = peer_dialog.run()

        if response:
            value = txt_ip.get_text()
            ip, port = parse_ip_port(value)
            if ip and port:
                log.info('Adding peer IP: %s port: %s to %s', ip, port, self.torrent_id)
                client.core.connect_peer(self.torrent_id, ip, port)
            else:
                log.error('Error parsing peer "%s"', value)

        peer_dialog.destroy()
        return True