networkaddressmanager.java

来自「java 开发的sip软电话 源码 jain sip」· Java 代码 · 共 469 行 · 第 1/2 页

                Enumeration localIfaces = NetworkInterface.getNetworkInterfaces();
				
                //interfaces loop
                interfaces_loop:
					
                while (localIfaces.hasMoreElements()) {
                    NetworkInterface iFace = (NetworkInterface) localIfaces.
                        nextElement();
                    Enumeration addresses = iFace.getInetAddresses();
					
                    //addresses loop
                    while (addresses.hasMoreElements()) {
                        InetAddress address = (InetAddress) addresses.nextElement();
						//ignore link local addresses
                        if (!address.isAnyLocalAddress()
                            && !address.isLinkLocalAddress()
                            && !address.isLoopbackAddress()
                            && !isWindowsAutoConfiguredIPv4Address(address)) {
							if (mappedAddress != null
                                && mappedAddress.equals(address)) {	
								System.out.println("OOOPPPPA");
                                return address;
                            }
                            else if (isLinkLocalIPv4Address(address)) {                               
                                linkLocalAddress = address;
                            }
                            else {
                                if (//bail out if we already have the address chosen by the user
                                           (linkLocalAddress != null
                                         && Utils.getProperty("net.java.mais.common.PREFERRED_NETWORK_ADDRESS") != null
                                         && Utils.getProperty("net.java.mais.common.PREFERRED_NETWORK_ADDRESS").equals(linkLocalAddress.getHostAddress()))
                                    //bail out if we already have an address on an interface chosen by the user
                                     ||     (linkLocalAddress != null
                                         && selectedInterface != null
                                         && Utils.getProperty("net.java.mais.common.PREFERRED_NETWORK_INTERFACE") != null
                                         && Utils.getProperty("net.java.mais.common.PREFERRED_NETWORK_INTERFACE").equals(selectedInterface))
                                         
                                         //bail out if we already have the address chosen by the user
                                     ||     (publicAddress != null
                                         && Utils.getProperty("net.java.mais.common.PREFERRED_NETWORK_ADDRESS") != null
                                         && Utils.getProperty("net.java.mais.common.PREFERRED_NETWORK_ADDRESS").equals(publicAddress.getHostAddress()))
                                         //bail out if we already have an address on an interface chosen by the user
                                     ||     (publicAddress != null
                                         && selectedInterface != null
                                         && Utils.getProperty("net.java.mais.common.PREFERRED_NETWORK_INTERFACE") != null
                                         && Utils.getProperty("net.java.mais.common.PREFERRED_NETWORK_INTERFACE").equals(selectedInterface))                                         
                                        //in case we have an ipv4 addr and don't want to change it for an ipv6
                                    ||     (publicAddress != null
                                         && publicAddress instanceof Inet4Address
                                         && address instanceof Inet6Address
                                         && preferIPv4Stack)
                                    //in case we have an ipv6 addr and don't want to change it for an ipv4
                                    ||     (publicAddress != null
                                         && publicAddress instanceof Inet6Address
                                         && address instanceof Inet4Address
                                         && !preferIPv4Stack)
                                    )
                                    continue;
                                publicAddress = address;


                                selectedInterface = iFace.getDisplayName();
                            }
                        }
                    }//addresses loop
                }//interfaces loop

                System.out.println("PREF: "+Utils.getProperty("net.java.mais.common.PREFERRED_NETWORK_ADDRESS"));
                
                if(Utils.getProperty("net.java.mais.common.PREFERRED_NETWORK_ADDRESS")==null && !Utils.getProperty("net.java.mais.common.PREFERRED_NETWORK_ADDRESS").equals("")){
                	if (publicAddress != null) System.out.println("PUBLIC: "+publicAddress.getHostAddress());
                	if (linkLocalAddress != null) System.out.println("LINK: "+linkLocalAddress.getHostAddress());                	
                    if (publicAddress != null && Utils.getProperty("net.java.mais.common.PREFERRED_NETWORK_ADDRESS").equals(publicAddress.getHostAddress())) {
                    	System.out.println("SELECTED: "+publicAddress);
                        return publicAddress;
                    }                
                    if (linkLocalAddress != null && Utils.getProperty("net.java.mais.common.PREFERRED_NETWORK_ADDRESS").equals(linkLocalAddress.getHostAddress())) {
                    	System.out.println("SELECTED: "+linkLocalAddress);
                        return linkLocalAddress;
                    }                	
                }
                
                if (publicAddress != null) {
                	System.out.println("SELECTED: "+publicAddress);
                    return publicAddress;
                }                
                if (linkLocalAddress != null) {
                	System.out.println("SELECTED: "+linkLocalAddress);
                      return linkLocalAddress;
                }
                if (anyAddressIsAccepted)
                    localHost = new InetSocketAddress(RANDOM_PORT).getAddress();
                else
                    localHost = InetAddress.getLocalHost();
            }
            catch (Exception ex) {
            	System.out.println("EXCEPTION NET DETECT: "+ex.toString());
                //get the address part of an InetSocketAddress for a random port.            	
                localHost = new InetSocketAddress(RANDOM_PORT).getAddress();
            }
            System.out.println("SELECTED: "+localHost);
            return localHost;
			
        }
        finally {
      
        }
    }

    //EMIL: I don't see where this method is used. Should probbaly Take it away
    /**
     * Tries to obtain a mapped/public address for the specified address and
     * port. If the STUN lib fails, tries to retrieve localhost, if that fails
     * too, returns null.
     *
     * @param address the address to resolve
     * @param port the port whose mapping we are interested in.
     * @return a public address corresponding to the specified port or null if
     * all attempts to retrieve such an address have failed.
     */
    public static InetSocketAddress getPublicAddressFor(String address,
        int port)
    {
        try {
        
           return new InetSocketAddress(address, port);
        }
        finally {
      
        }
    }

    /**
     * Tries to obtain a mapped/public address for the specified port. If the
     * STUN lib fails, tries to retrieve localhost, if that fails too, returns
     * null.
     *
     * @param port the port whose mapping we are interested in.
     * @return a public address corresponding to the specified port or null if
     * all attempts to retrieve such an address have failed.
     */
    public static InetSocketAddress getPublicAddressFor(int port)
    {
        try {
           return new InetSocketAddress(getLocalHost(), port);
        }
        finally {
        }
    }
  
    /**
     * Determines whether the address is the result of windows auto configuration.
     * (i.e. One that is in the 169.254.0.0 network)
     * @param add the address to inspect
     * @return true if the address is autoconfigured by windows, false otherwise.
     */
    public static boolean isWindowsAutoConfiguredIPv4Address(InetAddress add)
    {
        return (add.getAddress()[0] & 0xFF) == 169
            && (add.getAddress()[1] & 0xFF) == 254;
    }

    /**
     * Determines whether the address is an IPv4 link local address. IPv4 link
     * local addresses are those in the following networks:
     *
     * 10.0.0.0    to 10.255.255.255
     * 172.16.0.0  to 172.31.255.255
     * 192.168.0.0 to 192.168.255.255
     *
     * @param add the address to inspect
     * @return true if add is a link local ipv4 address and false if not.
     */
    public static boolean isLinkLocalIPv4Address(InetAddress add)
    {
        byte address[] = add.getAddress();
        if ( (address[0] & 0xFF) == 10)
            return true;
        if ( (address[0] & 0xFF) == 172
            && (address[1] & 0xFF) >= 16 && address[1] <= 31)
            return true;
        if ( (address[0] & 0xFF) == 192
            && (address[1] & 0xFF) == 168)
            return true;
        return false;
    }


    /**
     * Determines whether the address could be used in a VoIP session. Attention,
     * routable address as determined by this method are not only globally routable
     * addresses in the general sense of the term. Link local addresses such as
     * 192.168.x.x or fe80::xxxx are also considered usable.
     * @param address the address to test.
     * @return true if the address could be used in a VoIP session.
     */
    public static boolean isRoutable(InetAddress address)
    {
        if(address instanceof Inet6Address)
        {
            return !address.isLoopbackAddress();
        }
        else
        {
            return (!address.isLoopbackAddress())
                    && (!isWindowsAutoConfiguredIPv4Address(address));
        }
    }
    
    public static boolean setProxy(){
    
    	String proxy=Utils.getProperty("net.java.mais.common.PREFERRED_PROXY");	

    	if(proxy==null||proxy.equals("")){
    		proxy=RegReader.getDefaultProxy();    	    	} 	
    	if(proxy==null||proxy.equals("")){
    		proxy=JOptionPane.showInputDialog("Configura玢o de Proxy:","ip:porta");
    	}
    	
    	System.out.println(proxy);
    	
    	if(!proxy.equals("")){
    	String p[]=proxy.split(":");
    	System.getProperties().put("proxySet","true");
    	if(p.length>1)
        System.getProperties().put("proxyPort",p[1]);
        System.getProperties().put("proxyHost",p[0]);  
        Utils.setProperty("net.java.mais.common.PREFERRED_PROXY",proxy);
    	return true;        
    	}
    	return false;
    }
}