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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""PyBluez example bluezchat.py
A simple graphical chat client to demonstrate the use of pybluez.
Opens a l2cap socket and listens on PSM 0x1001.
Provides the ability to scan for nearby bluetooth devices and establish chat
sessions with them.
"""
import gtk
import gobject
import gtk.glade
import bluetooth
import bluetooth._bluetooth as bluez
GLADEFILE = "bluezchat.glade"
# *****************
def alert(text, buttons=gtk.BUTTONS_NONE, type=gtk.MESSAGE_INFO):
md = gtk.MessageDialog(buttons=buttons, type=type)
md.label.set_text(text)
md.run()
md.destroy()
class BluezChatGui:
def __init__(self):
self.main_window_xml = gtk.glade.XML(GLADEFILE, "bluezchat_window")
# connect our signal handlers
dic = {"on_quit_button_clicked": self.quit_button_clicked,
"on_send_button_clicked": self.send_button_clicked,
"on_chat_button_clicked": self.chat_button_clicked,
"on_scan_button_clicked": self.scan_button_clicked,
"on_devices_tv_cursor_changed": self.devices_tv_cursor_changed}
self.main_window_xml.signal_autoconnect(dic)
# prepare the floor listbox
self.devices_tv = self.main_window_xml.get_widget("devices_tv")
self.discovered = gtk.ListStore(gobject.TYPE_STRING,
gobject.TYPE_STRING)
self.devices_tv.set_model(self.discovered)
renderer = gtk.CellRendererText()
column1 = gtk.TreeViewColumn("addr", renderer, text=0)
column2 = gtk.TreeViewColumn("name", renderer, text=1)
self.devices_tv.append_column(column1)
self.devices_tv.append_column(column2)
self.quit_button = self.main_window_xml.get_widget("quit_button")
self.scan_button = self.main_window_xml.get_widget("scan_button")
self.chat_button = self.main_window_xml.get_widget("chat_button")
self.send_button = self.main_window_xml.get_widget("send_button")
self.main_text = self.main_window_xml.get_widget("main_text")
self.input_tb = self.main_window_xml.get_widget("input_tb")
self.text_buffer = self.main_text.get_buffer()
self.chat_button.set_sensitive(False)
self.listed_devs = []
self.peers = {}
self.sources = {}
self.addresses = {}
# the listening sockets
self.server_sock = None
# --- gui signal handlers
def quit_button_clicked(self, widget):
gtk.main_quit()
def scan_button_clicked(self, widget):
self.quit_button.set_sensitive(False)
self.scan_button.set_sensitive(False)
# self.chat_button.set_sensitive(False)
self.discovered.clear()
for addr, name in bluetooth.discover_devices(lookup_names=True):
self.discovered.append((addr, name))
self.quit_button.set_sensitive(True)
self.scan_button.set_sensitive(True)
# self.chat_button.set_sensitive(True)
def send_button_clicked(self, widget):
text = self.input_tb.get_text()
if not text:
return
for addr, sock in list(self.peers.items()):
sock.send(text)
self.input_tb.set_text("")
self.add_text("\nme - " + text)
def chat_button_clicked(self, widget):
(model, iter) = self.devices_tv.get_selection().get_selected()
if iter is not None:
addr = model.get_value(iter, 0)
if addr not in self.peers:
self.add_text("\nconnecting to " + addr)
self.connect(addr)
else:
self.add_text("\nAlready connected to " + addr)
def devices_tv_cursor_changed(self, widget):
(model, iter) = self.devices_tv.get_selection().get_selected()
if iter is not None:
self.chat_button.set_sensitive(True)
else:
self.chat_button.set_sensitive(False)
# --- network events
def incoming_connection(self, source, condition):
sock, info = self.server_sock.accept()
address, psm = info
self.add_text("\naccepted connection from " + str(address))
# add new connection to list of peers
self.peers[address] = sock
self.addresses[sock] = address
source = gobject.io_add_watch(sock, gobject.IO_IN, self.data_ready)
self.sources[address] = source
return True
def data_ready(self, sock, condition):
address = self.addresses[sock]
data = sock.recv(1024)
if not data:
self.add_text("\nlost connection with " + address)
gobject.source_remove(self.sources[address])
del self.sources[address]
del self.peers[address]
del self.addresses[sock]
sock.close()
else:
self.add_text("\n{} - {}".format(address, str(data)))
return True
# --- other stuff
def cleanup(self):
self.hci_sock.close()
def connect(self, addr):
sock = bluetooth.BluetoothSocket(bluetooth.L2CAP)
try:
sock.connect((addr, 0x1001))
except bluez.error as e:
self.add_text("\n" + str(e))
sock.close()
return
self.peers[addr] = sock
source = gobject.io_add_watch(sock, gobject.IO_IN, self.data_ready)
self.sources[addr] = source
self.addresses[sock] = addr
def add_text(self, text):
self.text_buffer.insert(self.text_buffer.get_end_iter(), text)
def start_server(self):
self.server_sock = bluetooth.BluetoothSocket(bluetooth.L2CAP)
self.server_sock.bind(("", 0x1001))
self.server_sock.listen(1)
gobject.io_add_watch(self.server_sock, gobject.IO_IN,
self.incoming_connection)
def run(self):
self.text_buffer.insert(self.text_buffer.get_end_iter(), "loading...")
self.start_server()
gtk.main()
if __name__ == "__main__":
gui = BluezChatGui()
gui.run()
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