Android平臺下基於XMPP的IM研究(二 MultiUserChat 聊天室)

yangxi_001發表於2014-08-06

一直想寫東西，但是上班不能在CSDN上寫東西。下班回家又忙著學Iphone開發，唉，兩個個字，忒忙。今天就寫寫Smack的聊天室功能吧。

先上程式碼：

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import java.io.BufferedReader;   

import java.io.InputStreamReader;   

import java.util.ArrayList;   

import java.util.Collection;   

import java.util.Iterator;   

import java.util.List;   

import org.jivesoftware.smack.Chat;   

import org.jivesoftware.smack.ConnectionConfiguration;   

import org.jivesoftware.smack.MessageListener;   

import org.jivesoftware.smack.PacketListener;   

import org.jivesoftware.smack.SmackConfiguration;   

import org.jivesoftware.smack.XMPPConnection;   

import org.jivesoftware.smack.XMPPException;   

import org.jivesoftware.smack.packet.Message;   

import org.jivesoftware.smack.packet.Packet;   

import org.jivesoftware.smack.provider.ProviderManager;   

import org.jivesoftware.smackx.Form;   

import org.jivesoftware.smackx.FormField;   

import org.jivesoftware.smackx.ServiceDiscoveryManager;   

import org.jivesoftware.smackx.muc.DefaultParticipantStatusListener;   

import org.jivesoftware.smackx.muc.DefaultUserStatusListener;   

import org.jivesoftware.smackx.muc.DiscussionHistory;   

import org.jivesoftware.smackx.muc.HostedRoom;   

import org.jivesoftware.smackx.muc.InvitationListener;   

import org.jivesoftware.smackx.muc.InvitationRejectionListener;   

import org.jivesoftware.smackx.muc.MultiUserChat;   

import org.jivesoftware.smackx.muc.RoomInfo;   

import org.jivesoftware.smackx.muc.SubjectUpdatedListener;   

import org.jivesoftware.smackx.packet.ChatStateExtension;   

import org.jivesoftware.smackx.packet.DiscoverInfo;   

import org.jivesoftware.smackx.packet.DiscoverItems;   

import org.jivesoftware.smackx.packet.OfflineMessageInfo;   

import org.jivesoftware.smackx.packet.OfflineMessageRequest;   

import org.jivesoftware.smackx.provider.AdHocCommandDataProvider;   

import org.jivesoftware.smackx.provider.BytestreamsProvider;   

import org.jivesoftware.smackx.provider.DataFormProvider;   

import org.jivesoftware.smackx.provider.DiscoverInfoProvider;   

import org.jivesoftware.smackx.provider.DiscoverItemsProvider;   

import org.jivesoftware.smackx.provider.IBBProviders;   

import org.jivesoftware.smackx.provider.MUCAdminProvider;   

import org.jivesoftware.smackx.provider.MUCOwnerProvider;   

import org.jivesoftware.smackx.provider.MUCUserProvider;   

import org.jivesoftware.smackx.provider.StreamInitiationProvider;   

import org.jivesoftware.smackx.provider.VCardProvider;   

import org.jivesoftware.smackx.provider.XHTMLExtensionProvider;   

public class TestSmack2 {   

    public static void main(String[] args) {XMPPConnection.DEBUG_ENABLED = true;   

        final ConnectionConfiguration connectionConfig = new ConnectionConfiguration("PC2010102716", 5222, "");  

        connectionConfig.setSASLAuthenticationEnabled(false);   

        ProviderManager pm = ProviderManager.getInstance();   

        configure(pm);   

        try {   

            XMPPConnection connection = new XMPPConnection(connectionConfig);   

            connection.connect();//連線   

            initFeatures(connection);   

            connection.login("test", "test");//登陸   

            //聊天室   

            //MultiUserChat multiUserChat = new MultiUserChat(connection, new InvitationListener() {});  

             //查詢服務   

            System.out.println(connection.getServiceName());   

            List<String> col = getConferenceServices(connection.getServiceName(), connection);  

            for (Object aCol : col) {   

                String service = (String) aCol;   

                 //查詢伺服器上的聊天室   

                Collection<HostedRoom> rooms = MultiUserChat.getHostedRooms(connection, service);  

                for(HostedRoom room : rooms) {   

                    //檢視Room訊息   

                    System.out.println(room.getName() + " - " +room.getJid());   

                    RoomInfo roomInfo = MultiUserChat.getRoomInfo(connection, room.getJid());  

                    if(roomInfo != null) {   

                        System.out.println(roomInfo.getOccupantsCount() + " : " + roomInfo.getSubject());  

                    }     

                 }     

            }   

            /*---建立預設配置的聊天室 ---  

            先看看官方的文件：  

            Creates a new multi user chat with the specified connection and room name. Note: no 

                  * information is sent to or received from the server until you attempt to  

                 * {@link #join(String) join} the chat room. On some server implementations, 

                  * the room will not be created until the first person joins it  

                 * 最重要一句:直到使用者呼叫join方法的時候聊天室才會被建立  

                 */   

            MultiUserChat muc = new MultiUserChat(connection, "instant@conference.pc2010102716");  

             muc.create("user1");   

            muc.sendConfigurationForm(new Form(Form.TYPE_SUBMIT));   

            //----建立手動配置聊天室----   

            muc = new MultiUserChat(connection, "reserved4@conference.pc2010102716");   

            //銷燬聊天室   

            //muc.destroy("Test", null);   

            muc.create("user2");   

            //獲取聊天室的配置表單   

            Form form = muc.getConfigurationForm();   

            //根據原始表單建立一個要提交的新表單   

            Form submitForm = form.createAnswerForm();   

            //向提交的表單新增預設答覆   

            for(Iterator<FormField> fields = form.getFields(); fields.hasNext();) {   

                FormField field = (FormField) fields.next();   

                if(!FormField.TYPE_HIDDEN.equals(field.getType()) && field.getVariable() != null) {  

                    submitForm.setDefaultAnswer(field.getVariable());   

                }   

            }   

            //重新設定聊天室名稱   

            submitForm.setAnswer("muc#roomconfig_roomname", "Reserved4 Room");   

            //設定聊天室的新擁有者   

            List<String> owners = new ArrayList<String>();   

            owners.add("test@pc2010102716");   

            submitForm.setAnswer("muc#roomconfig_roomowners", owners);   

            //設定密碼   

            submitForm.setAnswer("muc#roomconfig_passwordprotectedroom", true);   

            submitForm.setAnswer("muc#roomconfig_roomsecret", "reserved");   

            //設定描述   

            submitForm.setAnswer("muc#roomconfig_roomdesc", "新建立的reserved聊天室");   

            //設定聊天室是持久聊天室，即將要被儲存下來   

            //submitForm.setAnswer("muc#roomconfig_persistentroom", true);   

            //傳送已完成的表單到伺服器配置聊天室   

            muc.sendConfigurationForm(submitForm);   

            //加入聊天室(使用暱稱喝醉的毛毛蟲 ,使用密碼ddd)   

            muc = new MultiUserChat(connection, "ddd@conference.pc2010102716");   

            muc.join("喝醉的毛毛蟲", "ddd");   

            //監聽訊息   

            muc.addMessageListener(new PacketListener() {   

                @Override   

                public void processPacket(Packet packet) {   

                    Message message = (Message) packet;   

                    System.out.println(message.getFrom() + " : " + message.getBody());;   

                }   

            });   

            //muc = new MultiUserChat(connection, "ddd@conference.pc2010102716");   

            //muc.join("喝醉的毛毛蟲", "ddd");   

            //加入聊天室(使用暱稱喝醉的毛毛蟲 ,使用密碼ddd)並且獲取聊天室裡最後5條資訊，   

            //注：addMessageListener監聽器必須在此join方法之前，否則無法監聽到需要的5條訊息   

            muc = new MultiUserChat(connection, "ddd@conference.pc2010102716");   

            DiscussionHistory history = new DiscussionHistory();   

            history.setMaxStanzas(5);   

            muc.join("喝醉的毛毛蟲", "ddd", history, SmackConfiguration.getPacketReplyTimeout());   

            //監聽拒絕加入聊天室的使用者   

            muc.addInvitationRejectionListener(new InvitationRejectionListener() {   

                @Override   

                public void invitationDeclined(String invitee, String reason) {   

                System.out.println(invitee + " reject invitation, reason is " + reason);   

                }   

            });   

            //邀請使用者加入聊天室   

            muc.invite("test3@pc2010102716", "大家來談談人生");   

            //監聽邀請加入聊天室請求   

            MultiUserChat.addInvitationListener(connection, new InvitationListener() {   

                @Override   

                public void invitationReceived(XMPPConnection conn, String room, String inviter, String reason, String password, Message message) {   

                //例：直接拒絕邀請   

                MultiUserChat.decline(conn, room, inviter, "你丫很閒啊！");   

                }   

            });   

            //根據roomJID獲取聊天室資訊   

            RoomInfo roomInfo = MultiUserChat.getRoomInfo(connection, "ddd@conference.pc2010102716");  

             System.out.println(roomInfo.getRoom() + "-" + roomInfo.getSubject() + "-" + roomInfo.getOccupantsCount());  

            //判斷使用者是否支援Multi-User聊天協議   

            //注：需要加上資源識別符號   

            boolean supports = MultiUserChat.isServiceEnabled(connection, "test3@pc2010102716/spark");  

             //獲取某使用者所加入的聊天室   

            if(supports) {   

                Iterator<String> joinedRooms = MultiUserChat.getJoinedRooms(connection, "test3@pc2010102716/spark");  

                while(joinedRooms.hasNext()) {   

                    System.out.println("test3 has joined Room " + joinedRooms.next());   

                }   

            }   

            //與聊天室使用者私聊   

            Chat chat = muc.createPrivateChat("ddd@conference.pc2010102716/飛鳥", new MessageListener() {  

                 @Override   

                 public void processMessage(Chat chat, Message message) {   

                     System.out.println("Private Chat: Received message from " + message.getFrom() + "-" + message.getBody());  

                 }   

            });   

            chat.sendMessage("今天不用加班吧？");   

            //改變聊天室主題   

            muc.addSubjectUpdatedListener(new SubjectUpdatedListener() {   

                @Override   

                public void subjectUpdated(String subject, String from) {   

                    System.out.println("Subject updated to " + subject +" by " + from);   

                }   

            });   

            //muc.changeSubject("New Subject11");   

            /*一個成員可能有四種角色:  

            1：主持者(Moderator) （許可權最大的角色，管理其他成員在聊天室中的角色  

            2：參與者(Participant  

            3：遊客 (Visitor) (不能向所有成員傳送訊息)  

            4：無（沒有角色）（NONE）  

            */   

            /*聊天室使用者可以有5種從屬關係  

              * 1、所有者 Owner  

              * 2、管理員 Admin  

              * 3、成員 Member  

              * 4、被驅逐者 Outcast  

              * 5、無（不存在從屬關係) None  

              */   

            //配置聊天室為Moderated聊天室   

            form = muc.getConfigurationForm();   

            Form answerForm = form.createAnswerForm();   

            answerForm.setAnswer("muc#roomconfig_moderatedroom", "1");   

            muc.sendConfigurationForm(answerForm);   

            //監聽自己的狀態變更和事件   

            muc.addUserStatusListener(new DefaultUserStatusListener() {   

                @Override   

                public void voiceRevoked() {   

                    super.voiceRevoked();   

                    System.out.println("你被禁言了!");   

                }   

                @Override   

                public void voiceGranted() {   

                    super.voiceGranted();   

                    System.out.println("你被批准發言了!");   

                }   

                @Override   

                public void membershipGranted() {   

                    super.membershipGranted();   

                    System.out.println("你被賦予了Member許可權");   

                }   

                @Override   

                public void membershipRevoked() {   

                    super.membershipRevoked();   

                    System.out.println("你被解除了Member許可權");   

                }   

                @Override   

                public void adminGranted() {   

                    super.adminGranted();   

                    System.out.println("你被賦予了管理員許可權");   

                }   

                @Override   

                public void adminRevoked() {   

                super.adminRevoked();   

                System.out.println("你被解除了管理員許可權");   

                }   

            //......   

            });   

            //房主(Owner)批准test3發言權   

            muc.grantVoice("test3@pc2010102716");   

            //監聽他人狀態變更   

            muc.addParticipantStatusListener(new DefaultParticipantStatusListener() {   

                @Override   

                public void voiceGranted(String participant) {   

                    super.voiceGranted(participant);   

                System.out.println(participant + "被批准發言了!");   

                }   

                @Override   

                public void voiceRevoked(String participant) {   

                    super.voiceRevoked(participant);   

                    System.out.println(participant + "被禁言了!");   

                }   

                @Override   

                public void membershipRevoked(String participant) {   

                    super.membershipRevoked(participant);   

                }   

                @Override   

                public void adminGranted(String participant) {   

                    super.adminGranted(participant);   

                }   

                @Override   

                public void adminRevoked(String participant) {   

                    super.adminRevoked(participant);   

                }   

            });   

            //房主(Owner)批准test3管理員特權   

            muc.grantAdmin("test3@pc2010102716");   

            //傳送訊息   

            BufferedReader cmdIn = new BufferedReader(new InputStreamReader(System.in));   

            while(true) {   

                try {   

                     String cmd = cmdIn.readLine();   

                     if("!q".equalsIgnoreCase(cmd)) {   

                         break;   

                     }   

                  }catch(Exception ex) {   

                  }   

            }   

            connection.disconnect();   

            System.exit(0);         

        } catch (Exception e) {   

            e.printStackTrace();   

        }   

    }   

    public static  List<String> getConferenceServices(String server, XMPPConnection connection) throws Exception {  

     List<String> answer = new ArrayList<String>();   

            ServiceDiscoveryManager discoManager = ServiceDiscoveryManager.getInstanceFor(connection);  

             DiscoverItems items = discoManager.discoverItems(server);   

            for (Iterator<DiscoverItems.Item> it = items.getItems(); it.hasNext();) {  

                 DiscoverItems.Item item = (DiscoverItems.Item)it.next();   

                if (item.getEntityID().startsWith("conference") || item.getEntityID().startsWith("private")) {  

                     answer.add(item.getEntityID());   

                }   

                else {   

                    try {   

                        DiscoverInfo info = discoManager.discoverInfo(item.getEntityID());  

                         if (info.containsFeature("http://jabber.org/protocol/muc")) {  

                             answer.add(item.getEntityID());   

                        }   

                    }   

                    catch (XMPPException e) {   

                    }   

                }   

            }   

            return answer;   

        }   

    private static void configure(ProviderManager pm) {   

        // Service Discovery # Items   

        pm.addIQProvider("query", "http://jabber.org/protocol/disco#items", new DiscoverItemsProvider());  

         // Service Discovery # Info   

        pm.addIQProvider("query", "http://jabber.org/protocol/disco#info", new DiscoverInfoProvider());  

        // Service Discovery # Items   

        pm.addIQProvider("query", "http://jabber.org/protocol/disco#items", new DiscoverItemsProvider());  

         // Service Discovery # Info   

        pm.addIQProvider("query", "http://jabber.org/protocol/disco#info", new DiscoverInfoProvider());  

        //Offline Message Requests   

        pm.addIQProvider("offline","http://jabber.org/protocol/offline", new OfflineMessageRequest.Provider());  

                //Offline Message Indicator   

                pm.addExtensionProvider("offline","http://jabber.org/protocol/offline", new OfflineMessageInfo.Provider());         

        //vCard   

        pm.addIQProvider("vCard","vcard-temp", new VCardProvider());   

        //FileTransfer   

        pm.addIQProvider("si","http://jabber.org/protocol/si", new StreamInitiationProvider());  

                pm.addIQProvider("query","http://jabber.org/protocol/bytestreams", new BytestreamsProvider());  

                pm.addIQProvider("open","http://jabber.org/protocol/ibb", new IBBProviders.Open());  

                pm.addIQProvider("close","http://jabber.org/protocol/ibb", new IBBProviders.Close());  

                pm.addExtensionProvider("data","http://jabber.org/protocol/ibb", new IBBProviders.Data());          

                //Data Forms   

            pm.addExtensionProvider("x", "jabber:x:data", new DataFormProvider());   

            //Html   

            pm.addExtensionProvider("html", "http://jabber.org/protocol/xhtml-im", new XHTMLExtensionProvider());  

            //Ad-Hoc Command   

            pm.addIQProvider("command", "http://jabber.org/protocol/commands", new AdHocCommandDataProvider());          

        // Chat State   

        ChatStateExtension.Provider chatState = new ChatStateExtension.Provider();   

        pm.addExtensionProvider("active", "http://jabber.org/protocol/chatstates", chatState);  

        pm.addExtensionProvider("composing", "http://jabber.org/protocol/chatstates",   

            chatState);   

        pm.addExtensionProvider("paused", "http://jabber.org/protocol/chatstates", chatState);  

        pm.addExtensionProvider("inactive", "http://jabber.org/protocol/chatstates", chatState);  

        pm.addExtensionProvider("gone", "http://jabber.org/protocol/chatstates", chatState);  

        //MUC User,Admin,Owner   

        pm.addExtensionProvider("x", "http://jabber.org/protocol/muc#user", new MUCUserProvider());  

        pm.addIQProvider("query", "http://jabber.org/protocol/muc#admin", new MUCAdminProvider());  

        pm.addIQProvider("query", "http://jabber.org/protocol/muc#owner", new MUCOwnerProvider());  

    }   

    private static void initFeatures(XMPPConnection xmppConnection) {   

        ServiceDiscoveryManager.setIdentityName("Android_IM");   

        ServiceDiscoveryManager.setIdentityType("phone");   

        ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(xmppConnection);  

         if(sdm == null) {   

        sdm = new ServiceDiscoveryManager(xmppConnection);   

        }   

        sdm.addFeature("http://jabber.org/protocol/disco#info");   

        sdm.addFeature("http://jabber.org/protocol/caps");   

        sdm.addFeature("urn:xmpp:avatar:metadata");   

        sdm.addFeature("urn:xmpp:avatar:metadata+notify");   

        sdm.addFeature("urn:xmpp:avatar:data");   

        sdm.addFeature("http://jabber.org/protocol/nick");   

        sdm.addFeature("http://jabber.org/protocol/nick+notify");   

        sdm.addFeature("http://jabber.org/protocol/xhtml-im");   

        sdm.addFeature("http://jabber.org/protocol/muc");   

        sdm.addFeature("http://jabber.org/protocol/commands");   

        sdm.addFeature("http://jabber.org/protocol/si/profile/file-transfer");   

        sdm.addFeature("http://jabber.org/protocol/si");   

        sdm.addFeature("http://jabber.org/protocol/bytestreams");   

        sdm.addFeature("http://jabber.org/protocol/ibb");   

        sdm.addFeature("http://jabber.org/protocol/feature-neg");   

        sdm.addFeature("jabber:iq:privacy");   

    }   

}

上面有兩張Spark客戶端的聊天室列表佔有者一列不同的原因：當使用以下程式碼獲取時不能獲取occupantsCount和subject的值：

[java] view plain copy

System.out.println(roomInfo.getOccupantsCount() + " : " + roomInfo.getSubject());

這是由於Openfire端有個bug（暫且這樣說吧，我不知為什麼Openfire這樣做）.首先修改Smack的一個bug,修改RoomInfo類的RoomInfo(DiscoverInfo info) 方法:

[java]view
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Iterator<String> values = form.getField("muc#roominfo_subject").getValues();  

if (values.hasNext()) {  

    this.subject = values.next();  

}  

else {  

    this.subject = "";  

}

改為：

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final FormField subjField = form.getField("muc#roominfo_subject");   

this.subject = subjField == null ? "" : subjField.getValues().next();  

修改Openfire的原始碼，org/jivesoftware/openfire/muc/spi/MultiUserChatServiceImpl類的public DataForm getExtendedInfo(String name, String node, JID senderJID) 方法：

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           /*final FormField fieldOcc = dataForm.addField(); */  

           fieldSubj.setVariable("muc#roominfo_occupants");  

           fieldSubj.setLabel(LocaleUtils.getLocalizedString("muc.extended.info.occupants"));  

           fieldSubj.addValue(Integer.toString(room.getOccupantsCount()));

改為：

[java]view
 plaincopy

final FormField fieldOccu= dataForm.addField()；  

fieldOccu.setVariable("muc#roominfo_occupants");  

fieldOccu.setLabel(LocaleUtils.getLocalizedString("muc.extended.info.occupants"));  

fieldOccu.addValue(Integer.toString(room.getOccupantsCount()));   

使用asmack開發基於Android的IM系統同理.

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