desktop_browser.py 文件源码

def find_default_interface(self):
        """Look through the list of interfaces for the non-loopback interface"""
        import psutil
        try:
            if self.interfaces is None:
                self.interfaces = {}
                # Look to see which interfaces are up
                stats = psutil.net_if_stats()
                for interface in stats:
                    if interface != 'lo' and interface[:3] != 'ifb' and stats[interface].isup:
                        self.interfaces[interface] = {'packets': 0}
                if len(self.interfaces) > 1:
                    # See which interfaces have received data
                    cnt = psutil.net_io_counters(True)
                    for interface in cnt:
                        if interface in self.interfaces:
                            self.interfaces[interface]['packets'] = \
                                cnt[interface].packets_sent + cnt[interface].packets_recv
                    remove = []
                    for interface in self.interfaces:
                        if self.interfaces[interface]['packets'] == 0:
                            remove.append(interface)
                    if len(remove):
                        for interface in remove:
                            del self.interfaces[interface]
                if len(self.interfaces) > 1:
                    # Eliminate any with the loopback address
                    remove = []
                    addresses = psutil.net_if_addrs()
                    for interface in addresses:
                        if interface in self.interfaces:
                            for address in addresses[interface]:
                                if address.address == '127.0.0.1':
                                    remove.append(interface)
                                    break
                    if len(remove):
                        for interface in remove:
                            del self.interfaces[interface]
        except Exception:
            pass