openfire插件最佳实践（三） 用户加入指定群组功能

忽然要实现这样一个功能，完全没头绪还是看一下openfire的源码吧，发现room部分的服务器端可以直接将用户加入群组，只要发送请求

http://jabber.org/protocol/muc

那么我们可以利用这个请求：

依旧是使用一个自定义IQ来获取用户请求

假设我们指定iq如下格式：

<span style="font-size:18px;"><iq id="2uF5u-4" type="set" from="test@888/Smack"><query xmlns="hoo.iq.roommember"><roomJID>1388453982252@conference.888</roomJID><jID>wtf111@888</jID><affiliation>member</affiliation></query></iq></span>

iq 包set请求，包含roomJID、jID、affiliation三个参数，

roomJID是房间的jid，jID是想要操作的用户的jID，affiliation是用户被操作后的类型，

affiliation 设置为owner ：拥有者权限

affiliation 设置为admin ：管理员权限

affiliation 设置为member：房间成员权限

affiliation 设置为outcast：被排除者权限

通过发送上面的数据将会将wtf111这个人设置为1388453982252的房间成员

用户可通过这个接口重复设置，也就是说：

如果用户开始是拥有者，再次设置affiliation 设置为member 则此用户成灰普通房间成员，

但是当拥有者=1时，不允许继续减少拥有者

好的，我们定义好了消息格式，可以开始对消息进行处理了！

重写 handleIQ 方法 

@Override      public IQ handleIQ(IQ packet) throws UnauthorizedException {     System.out.println(packet.toXML());    //iqpackage：(因为麻烦所以，当前只提供单个用户对某房间的某权限添加)。iq包格式如下    //<iq ><query>    //<roomJID></><jID></><affiliation></>    //</iq><query>    IQ reply = IQ.createResultIQ(packet);    reply.setChildElement(packet.getChildElement().createCopy());    try {        ClientSession session = sessionManager.getSession(packet.getFrom());    if (session == null) {     Log.error("Error during userInfo. Session not found in " +                        sessionManager.getPreAuthenticatedKeys() +                        " for key " +                        packet.getFrom());                // This error packet will probably won't make it through                reply.setError(PacketError.Condition.internal_server_error);                return reply;    }    if (IQ.Type.get.equals(packet.getType())) {    throw new RuntimeException("no interface to get it ");} else if (IQ.Type.set.equals(packet.getType())) {Element iq = packet.getElement();Element query = iq.element("query");Element roomJIDEle = query.element("roomJID");Element jID = query.element("jID");Element affiliation = query.element("affiliation");if (roomJIDEle == null || jID == null || affiliation == null) {reply.setError(PacketError.Condition.item_not_found);return reply;}WebManager webManager = new WebManager();JID roomJID = new JID(roomJIDEle.getText());String roomName = roomJID.getNode();MUCRoom room = webManager.getMultiUserChatManager().getMultiUserChatService(roomJID).getChatRoom(roomName);IQ muciq = new IQ(IQ.Type.set);

//下面都是对内部发送IQ请求来功能if ("owner".equals(affiliation.getText())|| "admin".equals(affiliation.getText())) {Element frag = muciq.setChildElement("query","http://jabber.org/protocol/muc#owner");Element item = frag.addElement("item");item.addAttribute("affiliation", affiliation.getText());item.addAttribute("jid", jID.getText());// Send the IQ packet that will modify the room's// configurationroom.getIQOwnerHandler().handleIQ(muciq, room.getRole());} else if ("member".equals(affiliation.getText())|| "outcast".equals(affiliation.getText())) {Element frag = muciq.setChildElement("query","http://jabber.org/protocol/muc#admin");Element item = frag.addElement("item");item.addAttribute("affiliation", affiliation.getText());item.addAttribute("jid", jID.getText());// Send the IQ packet that will modify the room's// configurationroom.getIQAdminHandler().handleIQ(muciq, room.getRole());}}    } catch (Exception e) {reply.setError(PacketError.Condition.internal_server_error);return reply;}        return reply;      } 

这样就完成了处理，记得把它加到你的插件中啊~

server.getIQRouter().addHandler(new RoomMemberIQHander());