#!/usr/bin/python

import string
import socket
import wx
import sys
from wx.lib.mixins.listctrl import ColumnSorterMixin
from wx.lib.mixins.listctrl import ListCtrlAutoWidthMixin

# Classes to interface with a running tinc daemon

REQ_STOP = 0
REQ_RELOAD = 1
REQ_RESTART = 2
REQ_DUMP_NODES = 3
REQ_DUMP_EDGES = 4
REQ_DUMP_SUBNETS = 5
REQ_DUMP_CONNECTIONS = 6
REQ_DUMP_GRAPH = 7
REQ_PURGE = 8
REQ_SET_DEBUG = 9
REQ_RETRY = 10
REQ_CONNECT = 11
REQ_DISCONNECT = 12

ID = 0
ACK = 4
CONTROL = 18

class Node:
	def __init__(self):
		print('New node')

	def __exit__(self):
		print('Deleting node ' + self.name)

	def parse(self, args):
		self.name = args[0]
		self.address = args[2]
		if args[3] != 'port':
			args.insert(3, 'port')
			args.insert(4, '')
		self.port = args[4]
		self.cipher = int(args[6])
		self.digest = int(args[8])
		self.maclength = int(args[10])
		self.compression = int(args[12])
		self.options = int(args[14], 0x10)
		self.status = int(args[16], 0x10)
		self.nexthop = args[18]
		self.via = args[20]
		self.distance = int(args[22])
		self.pmtu = int(args[24])
		self.minmtu = int(args[26])
		self.maxmtu = int(args[28][:-1])

		self.subnets = {}

class Edge:
	def parse(self, args):
		self.fr = args[0]
		self.to = args[2]
		self.address = args[4]
		self.port = args[6]
		self.options = int(args[8], 16)
		self.weight = int(args[10])

class Subnet:
	def parse(self, args):
		if args[0].find('#') >= 0:
			(address, self.weight) = args[0].split('#', 1)
		else:
			self.weight = 10
			address = args[0]

		if address.find('/') >= 0:
			(self.address, self.prefixlen) = address.split('/', 1)
		else:
			self.address = address
			self.prefixlen = '48'

		self.owner = args[2]	

class Connection:
	def parse(self, args):
		self.name = args[0]
		self.address = args[2]
		if args[3] != 'port':
			args.insert(3, 'port')
			args.insert(4, '')
		self.port = args[4]
		self.options = int(args[6], 0x10)
		self.socket = int(args[8])
		self.status = int(args[10], 0x10)
		self.weight = 123

class VPN:
	confdir = '/etc/tinc'
	cookiedir = '/var/run/'

	def connect(self):
		f = open(self.cookiefile)
		cookie = string.split(f.readline())
		f.close()
		s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
		s.connect(('127.0.0.1', int(cookie[1])))
		self.sf = s.makefile()
		s.close()
		hello = string.split(self.sf.readline())
		self.name = hello[1]
		self.sf.write('0 ^' + cookie[0] + ' 17\r\n')
		self.sf.flush()
		resp = string.split(self.sf.readline())
		self.port = cookie[1]
		self.nodes = {}
		self.edges = {}
		self.subnets = {}
		self.connections = {}
		self.refresh()

	def refresh(self):
		self.sf.write('18 3\r\n18 4\r\n18 5\r\n18 6\r\n')
		self.sf.flush()

		for node in self.nodes.values():
			node.visited = False
		for edge in self.edges.values():
			edge.visited = False
		for subnet in self.subnets.values():
			subnet.visited = False
		for connections in self.connections.values():
			connections.visited = False

		while True:
			resp = string.split(self.sf.readline())
			if len(resp) < 2:
				break
			if resp[0] != '18':
				break
			if resp[1] == '3':
				if len(resp) < 3:
					continue
				node = self.nodes.get(resp[2]) or Node()
				node.parse(resp[2:])
				node.visited = True
				self.nodes[resp[2]] = node
			elif resp[1] == '4':
				if len(resp) < 5:
					continue
				edge = self.nodes.get((resp[2], resp[4])) or Edge()
				edge.parse(resp[2:])
				edge.visited = True
				self.edges[(resp[2], resp[4])] = edge
			elif resp[1] == '5':
				if len(resp) < 5:
					continue
				subnet = self.subnets.get((resp[2], resp[4])) or Subnet()
				subnet.parse(resp[2:])
				subnet.visited = True
				self.subnets[(resp[2], resp[4])] = subnet
				self.nodes[subnet.owner].subnets[resp[2]] = subnet
			elif resp[1] == '6':
				if len(resp) < 5:
					break
				connection = self.connections.get((resp[2], resp[4])) or Connection()
				connection.parse(resp[2:])
				connection.visited = True
				self.connections[(resp[2], resp[4])] = connection
			else:
				break

		for key, subnet in self.subnets.items():
			if not subnet.visited:
				del self.subnets[key]

		for key, edge in self.edges.items():
			if not edge.visited:
				del self.edges[key]

		for key, node in self.nodes.items():
			if not node.visited:
				del self.nodes[key]
			else:
				for key, subnet in node.subnets.items():
					if not subnet.visited:
						del node.subnets[key]

		for key, connection in self.connections.items():
			if not connection.visited:
				del self.connections[key]

	def close(self):
		self.sf.close()

	def disconnect(self, name):
		self.sf.write('18 12 ' + name + '\r\n')
		self.sf.flush()
		resp = string.split(self.sf.readline())

	def debug(self, level = -1):
		self.sf.write('18 9 ' + str(level) + '\r\n')
		self.sf.flush()
		resp = string.split(self.sf.readline())
		return int(resp[2])

	def __init__(self, netname = None, controlcookie = None):
		self.tincconf = VPN.confdir + '/'

		if netname:
			self.netname = netname
			self.tincconf += netname + '/'

		self.tincconf += 'tinc.conf'

		if controlcookie is not None:
			self.cookiefile = controlcookie
		else:
			self.cookiefile = VPN.cookiedir + 'tinc.'
			if netname:
				self.cookiefile += netname + '.'
			self.cookiefile += 'cookie'

# GUI starts here

del sys.argv[0]
net = None
controlcookie = None

while len(sys.argv) >= 2:
	if sys.argv[0] in ('-n', '--net'):
		net = sys.argv[1]
	elif sys.argv[0] in ('--controlcookie'):
		controlcookie = sys.argv[1]
	else:
		print('Unknown option ' + sys.argv[0])
		sys.exit(1)

	del sys.argv[0]
	del sys.argv[0]

vpn = VPN(net, controlcookie)
vpn.connect()

class SuperListCtrl(wx.ListCtrl, ColumnSorterMixin, ListCtrlAutoWidthMixin):
    def __init__(self, parent, style):
        wx.ListCtrl.__init__(self, parent, -1, style=wx.LC_REPORT | wx.LC_HRULES | wx.LC_VRULES)
	ListCtrlAutoWidthMixin.__init__(self)
        ColumnSorterMixin.__init__(self, 14)

    def GetListCtrl(self):
        return self


class SettingsPage(wx.Panel):
	def OnDebugLevel(self, event):
		vpn.debug(self.debug.GetValue())

	def __init__(self, parent, id):
		wx.Panel.__init__(self, parent, id)
		grid = wx.FlexGridSizer(cols = 2)
		grid.AddGrowableCol(0, 1)

		namelabel = wx.StaticText(self, -1, 'Name:')
		self.name = wx.TextCtrl(self, -1, vpn.name)
		grid.Add(namelabel)
		grid.Add(self.name)

		portlabel = wx.StaticText(self, -1, 'Port:')
		self.port = wx.TextCtrl(self, -1, vpn.port)
		grid.Add(portlabel)
		grid.Add(self.port)

		debuglabel = wx.StaticText(self, -1, 'Debug level:')
		self.debug = wx.SpinCtrl(self, min = 0, max = 5, initial = vpn.debug())
		self.debug.Bind(wx.EVT_SPINCTRL, self.OnDebugLevel)
		grid.Add(debuglabel)
		grid.Add(self.debug)

		modelabel = wx.StaticText(self, -1, 'Mode:')
		self.mode = wx.ComboBox(self, -1, style = wx.CB_READONLY, value = 'Router', choices = ['Router', 'Switch', 'Hub'])
		grid.Add(modelabel)
		grid.Add(self.mode)

		self.SetSizer(grid)

class ConnectionsPage(wx.Panel):
	def __init__(self, parent, id):
		wx.Panel.__init__(self, parent, id)
		self.list = wx.ListCtrl(self, id, style=wx.LC_REPORT | wx.LC_HRULES | wx.LC_VRULES)
		self.list.InsertColumn(0, 'Name')
		self.list.InsertColumn(1, 'Address')
		self.list.InsertColumn(2, 'Port')
		self.list.InsertColumn(3, 'Options')
		self.list.InsertColumn(4, 'Weight')

		hbox = wx.BoxSizer(wx.HORIZONTAL)
		hbox.Add(self.list, 1, wx.EXPAND)
		self.SetSizer(hbox)
		self.refresh()

	class ContextMenu(wx.Menu):
		def __init__(self, item):
			wx.Menu.__init__(self)

			self.item = item

			disconnect = wx.MenuItem(self, -1, 'Disconnect')
			self.AppendItem(disconnect)
			self.Bind(wx.EVT_MENU, self.OnDisconnect, id=disconnect.GetId())

		def OnDisconnect(self, event):
			print('Disconnecting ' + self.item[0])
			vpn.disconnect(self.item[0])

	def OnContext(self, event):
		print('Context menu!')
		i = event.GetIndex()
		print(i)
		self.PopupMenu(self.ContextMenu(self.list.itemDataMap[event.GetIndex()]), event.GetPosition())

	def refresh(self):
		self.list.itemDataMap = {}
		i = 0

		for key, connection in vpn.connections.items():
			if self.list.GetItemCount() <= i:
				self.list.InsertStringItem(i, connection.name)
			else:
				self.list.SetStringItem(i, 0, connection.name)
			self.list.SetStringItem(i, 1, connection.address)
			self.list.SetStringItem(i, 2, connection.port)
			self.list.SetStringItem(i, 3, str(connection.options))
			self.list.SetStringItem(i, 4, str(connection.weight))
			self.list.itemDataMap[i] = (connection.name, connection.address, connection.port, connection.options, connection.weight)
			self.list.Bind(wx.EVT_LIST_ITEM_RIGHT_CLICK, self.OnContext)
			i += 1

		while self.list.GetItemCount() > i:
			self.list.DeleteItem(self.list.GetItemCount() - 1)


class NodesPage(wx.Panel):
	def __init__(self, parent, id):
		wx.Panel.__init__(self, parent, id)
		self.list = SuperListCtrl(self, id)
		self.list.InsertColumn( 0, 'Name')
		self.list.InsertColumn( 1, 'Address')
		self.list.InsertColumn( 2, 'Port')
		self.list.InsertColumn( 3, 'Cipher')
		self.list.InsertColumn( 4, 'Digest')
		self.list.InsertColumn( 5, 'MACLength')
		self.list.InsertColumn( 6, 'Compression')
		self.list.InsertColumn( 7, 'Options')
		self.list.InsertColumn( 8, 'Status')
		self.list.InsertColumn( 9, 'Nexthop')
		self.list.InsertColumn(10, 'Via')
		self.list.InsertColumn(11, 'Distance')
		self.list.InsertColumn(12, 'PMTU')
		self.list.InsertColumn(13, 'Min MTU')
		self.list.InsertColumn(14, 'Max MTU')

		hbox = wx.BoxSizer(wx.HORIZONTAL)
		hbox.Add(self.list, 1, wx.EXPAND)
		self.SetSizer(hbox)
		self.refresh()

	def refresh(self):
		self.list.itemDataMap = {}
		i = 0

		for key, node in vpn.nodes.items():
			if self.list.GetItemCount() <= i:
				self.list.InsertStringItem(i, node.name)
			else:
				self.list.SetStringItem(i,  0, node.name)
			self.list.SetStringItem(i,  1, node.address)
			self.list.SetStringItem(i,  2, node.port)
			self.list.SetStringItem(i,  3, str(node.cipher))
			self.list.SetStringItem(i,  4, str(node.digest))
			self.list.SetStringItem(i,  5, str(node.maclength))
			self.list.SetStringItem(i,  6, str(node.compression))
			self.list.SetStringItem(i,  7, str(node.options))
			self.list.SetStringItem(i,  8, str(node.status))
			self.list.SetStringItem(i,  9, node.nexthop)
			self.list.SetStringItem(i, 10, node.via)
			self.list.SetStringItem(i, 11, str(node.distance))
			self.list.SetStringItem(i, 12, str(node.pmtu))
			self.list.SetStringItem(i, 13, str(node.minmtu))
			self.list.SetStringItem(i, 14, str(node.maxmtu))
			self.list.itemDataMap[i] = (node.name, node.address, node.port, node.cipher, node.digest, node.maclength, node.compression, node.options, node.status, node.nexthop, node.via, node.distance, node.pmtu, node.minmtu, node.maxmtu)
			self.list.SetItemData(i, i)
			i += 1

		while self.list.GetItemCount() > i:
			self.list.DeleteItem(self.list.GetItemCount() - 1)

class EdgesPage(wx.Panel):
	def __init__(self, parent, id):
		wx.Panel.__init__(self, parent, id)
		self.list = wx.ListCtrl(self, id, style=wx.LC_REPORT | wx.LC_HRULES | wx.LC_VRULES)
		self.list.InsertColumn(0, 'From')
		self.list.InsertColumn(1, 'To')
		self.list.InsertColumn(2, 'Address')
		self.list.InsertColumn(3, 'Port')
		self.list.InsertColumn(4, 'Options')
		self.list.InsertColumn(5, 'Weight')

		hbox = wx.BoxSizer(wx.HORIZONTAL)
		hbox.Add(self.list, 1, wx.EXPAND)
		self.SetSizer(hbox)
		self.refresh()

	def refresh(self):
		self.list.itemDataMap = {}
		i = 0

		for key, edge in vpn.edges.items():
			if self.list.GetItemCount() <= i:
				self.list.InsertStringItem(i, edge.fr)
			else:
				self.list.SetStringItem(i, 0, edge.fr)
			self.list.SetStringItem(i, 1, edge.to)
			self.list.SetStringItem(i, 2, edge.address)
			self.list.SetStringItem(i, 3, edge.port)
			self.list.SetStringItem(i, 4, str(edge.options))
			self.list.SetStringItem(i, 5, str(edge.weight))
			self.list.itemDataMap[i] = (edge.fr, edge.to, edge.address, edge.port, edge.options, edge.weight)
			i += 1

		while self.list.GetItemCount() > i:
			self.list.DeleteItem(self.list.GetItemCount() - 1)

class SubnetsPage(wx.Panel):
	def __init__(self, parent, id):
		wx.Panel.__init__(self, parent, id)
		self.list = SuperListCtrl(self, id)
		self.list.InsertColumn(0, 'Subnet', wx.LIST_FORMAT_RIGHT)
		self.list.InsertColumn(1, 'Weight', wx.LIST_FORMAT_RIGHT)
		self.list.InsertColumn(2, 'Owner')
		hbox = wx.BoxSizer(wx.HORIZONTAL)
		hbox.Add(self.list, 1, wx.EXPAND)
		self.SetSizer(hbox)
		self.refresh()

	def refresh(self):
		self.list.itemDataMap = {}
		i = 0

		for key, subnet in vpn.subnets.items():
			if self.list.GetItemCount() <= i:
				self.list.InsertStringItem(i, subnet.address + '/' + subnet.prefixlen)
			else:
				self.list.SetStringItem(i, 0, subnet.address + '/' + subnet.prefixlen)
			self.list.SetStringItem(i, 1, subnet.weight)
			self.list.SetStringItem(i, 2, subnet.owner)
			self.list.itemDataMap[i] = (subnet.address + '/' + subnet.prefixlen, subnet.weight, subnet.owner)
			i = i + 1

		while self.list.GetItemCount() > i:
			self.list.DeleteItem(self.list.GetItemCount() - 1)

class StatusPage(wx.Panel):
	def __init__(self, parent, id):
		wx.Panel.__init__(self, parent, id)

class GraphPage(wx.Window):
	def __init__(self, parent, id):
		wx.Window.__init__(self, parent, id)

class NetPage(wx.Notebook):
	def __init__(self, parent, id):
		wx.Notebook.__init__(self, parent)
		self.settings = SettingsPage(self, id)
		self.connections = ConnectionsPage(self, id)
		self.nodes = NodesPage(self, id)
		self.edges = EdgesPage(self, id)
		self.subnets = SubnetsPage(self, id)
		self.graph = GraphPage(self, id)
		self.status = StatusPage(self, id)

		self.AddPage(self.settings, 'Settings')
		#self.AddPage(self.status, 'Status')
		self.AddPage(self.connections, 'Connections')
		self.AddPage(self.nodes, 'Nodes')
		self.AddPage(self.edges, 'Edges')
		self.AddPage(self.subnets, 'Subnets')
		#self.AddPage(self.graph, 'Graph')
		

class MainWindow(wx.Frame):
	def OnQuit(self, event):
		self.Close(True)

	def OnTimer(self, event):
		vpn.refresh()
		self.np.nodes.refresh()
		self.np.subnets.refresh()
		self.np.edges.refresh()
		self.np.connections.refresh()

	def __init__(self, parent, id, title):
		wx.Frame.__init__(self, parent, id, title)

		menubar = wx.MenuBar()
		file = wx.Menu()
		file.Append(1, '&Quit\tCtrl-X', 'Quit tinc GUI')
		menubar.Append(file, '&File')

		#nb = wx.Notebook(self, -1)
		#nb.SetPadding((0, 0))
		self.np = NetPage(self, -1)
		#nb.AddPage(np, 'VPN')
		
		self.timer = wx.Timer(self, -1)
		self.Bind(wx.EVT_TIMER, self.OnTimer, self.timer)
		self.timer.Start(1000)
		self.Bind(wx.EVT_MENU, self.OnQuit, id=1)
		self.SetMenuBar(menubar)
		self.Show()

app = wx.App()
mw = MainWindow(None, -1, 'Tinc GUI')

#def OnTaskBarIcon(event):
#	mw.Raise()
#
#icon = wx.Icon("tincgui.ico", wx.BITMAP_TYPE_PNG)
#taskbaricon = wx.TaskBarIcon()
#taskbaricon.SetIcon(icon, 'Tinc GUI')
#wx.EVT_TASKBAR_RIGHT_UP(taskbaricon, OnTaskBarIcon)

app.MainLoop()
vpn.close()