• iOS 的 XMPPFramework 简介


    XMPPFramework是一个OS X/iOS平台的开源项目,使用Objective-C实现了XMPP协议(RFC-3920),同时还提供了用于读写XML的工具,大大简化了基于XMPP的通信应用的开发。

    1. 登录和好友上下线

    1.1XMPP中常用对象们

    • XMPPStream:xmpp基础服务类

    • XMPPRoster:好友列表类

    • XMPPRosterCoreDataStorage:好友列表(用户账号)在core data中的操作类

    • XMPPvCardCoreDataStorage:好友名片(昵称,签名,性别,年龄等信息)在core data中的操作类

    • XMPPvCardTemp:好友名片实体类,从数据库里取出来的都是它

    • xmppvCardAvatarModule:好友头像

    • XMPPReconnect:如果失去连接,自动重连

    • XMPPRoom:提供多用户聊天支持

    • XMPPPubSub:发布订阅

    1.2登录操作,也就是连接xmpp服务器

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    - (void)connect {
        if (self.xmppStream == nil) {
            self.xmppStream = [[XMPPStream alloc] init];
            [self.xmppStream addDelegate:self delegateQueue:dispatch_get_main_queue()];
        }
        if (![self.xmppStream isConnected]) {
            NSString *username = [[NSUserDefaults standardUserDefaults] objectForKey:@"username"];
            XMPPJID *jid = [XMPPJID jidWithUser:username domain:@"lizhen" resource:@"Ework"];
            [self.xmppStream setMyJID:jid];
            [self.xmppStream setHostName:@"10.4.125.113"];
            NSError *error = nil;
            if (![self.xmppStream connect:&error]) {
                NSLog(@"Connect Error: %@", [[error userInfo] description]);
            }
        }
    }

    connect成功之后会依次调用XMPPStreamDelegate的方法,首先调用

    1
    2
    3
    - (void)xmppStream:(XMPPStream *)sender socketDidConnect:(GCDAsyncSocket *)socket
     
    ...

    然后

    1
    - (void)xmppStreamDidConnect:(XMPPStream *)sender

    在该方法下面需要使用xmppStream 的authenticateWithPassword方法进行密码验证,成功的话会响应delegate的方法,就是下面这个

    1
    - (void)xmppStreamDidAuthenticate:(XMPPStream *)sender

    1.3上线

    实现 - (void)xmppStreamDidAuthenticate:(XMPPStream *)sender 委托方法

    1
    2
    3
    4
    - (void)xmppStreamDidAuthenticate:(XMPPStream *)sender {
        XMPPPresence *presence = [XMPPPresence presenceWithType:@"available"];
        [self.xmppStream sendElement:presence];
    }

    1.4退出并断开连接

    1
    2
    3
    4
    5
    6
    - (void)disconnect {
        XMPPPresence *presence = [XMPPPresence presenceWithType:@"unavailable"];
        [self.xmppStream sendElement:presence];
          
        [self.xmppStream disconnect];
    }

    1.5好友状态

    获取好友状态,通过实现 

    1
    2
    3
    - (void)xmppStream:(XMPPStream *)sender didReceivePresence:(XMPPPresence *)presence
     
    ...

    方法,当接收到 presence 标签的内容时,XMPPFramework 框架回调该方法 

    一个 presence 标签的格式一般如下:

    360桌面截图20141219111016.jpg

    presence 的状态:

    • available 上线

    • away 离开

    • do not disturb 忙碌

    • unavailable 下线

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    - (void)xmppStream:(XMPPStream *)sender didReceivePresence:(XMPPPresence *)presence {
        NSString *presenceType = [presence type];
        NSString *presenceFromUser = [[presence from] user];
        if (![presenceFromUser isEqualToString:[[sender myJID] user]]) {
            if ([presenceType isEqualToString:@"available"]) {
                //
            else if ([presenceType isEqualToString:@"unavailable"]) {
                //
            }
        }
    }

    2. 接收消息和发送消息

    2.1接收消息

    通过实现 

    1
    - (void)xmppStream:(XMPPStream *)sender didReceiveMessage:(XMPPMessage *)message;

    方法

    当接收到 message 标签的内容时,XMPPFramework 框架回调该方法

    根据 XMPP 协议,消息体的内容存储在标签 body 内

    1
    2
    3
    - (void)xmppStream:(XMPPStream *)sender didReceiveMessage:(XMPPMessage *)message {
        NSString *messageBody = [[message elementForName:@"body"] stringValue];
    }

    2.2发送消息

    发送消息,我们需要根据 XMPP 协议,将数据放到标签内,例如:

    360桌面截图20141219111049.jpg

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    - (void)sendMessage:(NSString *) message toUser:(NSString *) user {
        NSXMLElement *body = [NSXMLElement elementWithName:@"body"];
        [body setStringValue:message];
        NSXMLElement *message = [NSXMLElement elementWithName:@"message"];
        [message addAttributeWithName:@"type" stringValue:@"chat"];
        NSString *to = [NSString stringWithFormat:@"%@@example.com", user];
        [message addAttributeWithName:@"to" stringValue:to];
        [message addChild:body];
        [self.xmppStream sendElement:message];
    }

    3. 获取好友信息和删除好友

    3.1好友列表和好友名片

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    [_xmppRoster fetchRoster];//获取好友列表
    //获取到一个好友节点
    - (void)xmppRoster:(XMPPRoster *)sender didRecieveRosterItem:(NSXMLElement *)item
    //获取完好友列表
    - (void)xmppRosterDidEndPopulating:(XMPPRoster *)sender
    //到服务器上请求联系人名片信息
    - (void)fetchvCardTempForJID:(XMPPJID *)jid;
    //请求联系人的名片,如果数据库有就不请求,没有就发送名片请求
    - (void)fetchvCardTempForJID:(XMPPJID *)jid ignoreStorage:(BOOL)ignoreStorage;
    //获取联系人的名片,如果数据库有就返回,没有返回空,并到服务器上抓取
    - (XMPPvCardTemp *)vCardTempForJID:(XMPPJID *)jid shouldFetch:(BOOL)shouldFetch;
    //更新自己的名片信息
    - (void)updateMyvCardTemp:(XMPPvCardTemp *)vCardTemp;
    //获取到一盒联系人的名片信息的回调
    - (void)xmppvCardTempModule:(XMPPvCardTempModule *)vCardTempModule 
            didReceivevCardTemp:(XMPPvCardTemp *)vCardTemp 
                         forJID:(XMPPJID *)jid

    3.2添加好友

    1
    2
    3
    4
    5
    6
    7
    8
    9
        //name为用户账号
        - (void)XMPPAddFriendSubscribe:(NSString *)name
        {
            //XMPPHOST 就是服务器名,  主机名
            XMPPJID *jid = [XMPPJID jidWithString:[NSString stringWithFormat:@"%@@%@",name,XMPPHOST]];
            //[presence addAttributeWithName:@"subscription" stringValue:@"好友"];
            [xmppRoster subscribePresenceToUser:jid];
              
        }

    3.3收到添加好友的请求

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
        - (void)xmppRoster:(XMPPRoster *)sender didReceivePresenceSubscriptionRequest:(XMPPPresence *)presence
        {
            //取得好友状态
            NSString *presenceType = [NSString stringWithFormat:@"%@", [presence type]]; //online/offline
            //请求的用户
            NSString *presenceFromUser =[NSString stringWithFormat:@"%@", [[presence from] user]];
            NSLog(@"presenceType:%@",presenceType);
              
            NSLog(@"presence2:%@  sender2:%@",presence,sender);
              
            XMPPJID *jid = [XMPPJID jidWithString:presenceFromUser];
            //接收添加好友请求
            [xmppRoster acceptPresenceSubscriptionRequestFrom:jid andAddToRoster:YES];
              
        }

    3.4删除好友

    1
    2
    3
    4
    5
    6
    7
    //删除好友,name为好友账号
    - (void)removeBuddy:(NSString *)name  
    {  
        XMPPJID *jid = [XMPPJID jidWithString:[NSString stringWithFormat:@"%@@%@",name,XMPPHOST]];  
            
        [self xmppRoster] removeUser:jid];  
    }

    4. 聊天室

    初始化聊天室

    1
    2
    3
    4
    5
    6
        XMPPJID *roomJID = [XMPPJID jidWithString:ROOM_JID];
          
        xmppRoom = [[XMPPRoom alloc] initWithRoomStorage:self jid:roomJID];
          
        [xmppRoom activate:xmppStream];
        [xmppRoom addDelegate:self delegateQueue:dispatch_get_main_queue()];

    创建聊天室成功

    1
    2
    3
    4
        - (void)xmppRoomDidCreate:(XMPPRoom *)sender
        {
            DDLogInfo(@"%@: %@", THIS_FILE, THIS_METHOD);
        }

    加入聊天室,使用昵称

    1
        [xmppRoom joinRoomUsingNickname:@"quack" history:nil];

    获取聊天室信息

    1
    2
    3
    4
    5
    6
    7
        - (void)xmppRoomDidJoin:(XMPPRoom *)sender
        {
            [xmppRoom fetchConfigurationForm];
            [xmppRoom fetchBanList];
            [xmppRoom fetchMembersList];
            [xmppRoom fetchModeratorsList];
        }

    如果房间存在,会调用委托

    1
    2
    3
    4
    5
    6
        // 收到禁止名单列表
        - (void)xmppRoom:(XMPPRoom *)sender didFetchBanList:(NSArray *)items;
        // 收到好友名单列表
        - (void)xmppRoom:(XMPPRoom *)sender didFetchMembersList:(NSArray *)items;
        // 收到主持人名单列表
        - (void)xmppRoom:(XMPPRoom *)sender didFetchModeratorsList:(NSArray *)items;

    房间不存在,调用委托

    1
    2
    3
        - (void)xmppRoom:(XMPPRoom *)sender didNotFetchBanList:(XMPPIQ *)iqError;
        - (void)xmppRoom:(XMPPRoom *)sender didNotFetchMembersList:(XMPPIQ *)iqError;
        - (void)xmppRoom:(XMPPRoom *)sender didNotFetchModeratorsList:(XMPPIQ *)iqError;

    离开房间

    1
    [xmppRoom deactivate:xmppStream];

    XMPPRoomDelegate的其他代理方法:

    离开聊天室

    1
    2
    3
    4
        - (void)xmppRoomDidLeave:(XMPPRoom *)sender
        {
            DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD);
        }

    新人加入群聊

    1
    2
    3
    4
        - (void)xmppRoom:(XMPPRoom *)sender occupantDidJoin:(XMPPJID *)occupantJID
        {
            DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD);
        }

    有人退出群聊

    1
    2
    3
    4
        - (void)xmppRoom:(XMPPRoom *)sender occupantDidLeave:(XMPPJID *)occupantJID
        {
            DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD);
        }

    有人在群里发言

    1
    2
    3
    4
        - (void)xmppRoom:(XMPPRoom *)sender didReceiveMessage:(XMPPMessage *)message fromOccupant:(XMPPJID *)occupantJID
        {
            DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD);
        }

    5. 消息回执

    这个是XEP-0184协议的内容

    协议内容:

    发送消息时附加回执请求

    360桌面截图20141219110801.jpg

    代码实现

    1
    2
    3
    4
    5
    6
    7
        NSString *siID = [XMPPStream generateUUID];
        //发送消息
        XMPPMessage *message = [XMPPMessage messageWithType:@"chat" to:jid elementID:siID];
        NSXMLElement *receipt = [NSXMLElement elementWithName:@"request" xmlns:@"urn:xmpp:receipts"];
        [message addChild:receipt];
        [message addBody:@"测试"];
        [self.xmppStream sendElement:message];

    收到回执请求的消息,发送回执

    360桌面截图20141219110826.jpg

    代码实现

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
        - (void)xmppStream:(XMPPStream *)sender didReceiveMessage:(XMPPMessage *)message
        {
            //回执判断
            NSXMLElement *request = [message elementForName:@"request"];
            if (request)
            {
                if ([request.xmlns isEqualToString:@"urn:xmpp:receipts"])//消息回执
                {
                    //组装消息回执
                    XMPPMessage *msg = [XMPPMessage messageWithType:[message attributeStringValueForName:@"type"] to:message.from elementID:[message attributeStringValueForName:@"id"]];
                    NSXMLElement *recieved = [NSXMLElement elementWithName:@"received" xmlns:@"urn:xmpp:receipts"];
                    [msg addChild:recieved];
                      
                    //发送回执
                    [self.xmppStream sendElement:msg];
                }
            }else
            {
                NSXMLElement *received = [message elementForName:@"received"];
                if (received)
                {
                    if ([received.xmlns isEqualToString:@"urn:xmpp:receipts"])//消息回执
                    {
                        //发送成功
                        NSLog(@"message send success!");
                    }  
                }  
            }  
              
            //消息处理  
            //...  
        }

    6. 添加AutoPing

    为了监听服务器是否有效,增加心跳监听。用XEP-0199协议,在XMPPFrameWork框架下,封装了 XMPPAutoPing 和 XMPPPing两个类都可以使用,因为XMPPAutoPing已经组合进了XMPPPing类,所以XMPPAutoPing使用起来更方便。

    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    //初始化并启动ping
    -(void)autoPingProxyServer:(NSString*)strProxyServer
    {
        _xmppAutoPing = [[XMPPAutoPingalloc] init];
        [_xmppAutoPingactivate:_xmppStream];
        [_xmppAutoPingaddDelegate:selfdelegateQueue:  dispatch_get_main_queue()];
        _xmppAutoPing.respondsToQueries = YES;
        _xmppAutoPing.pingInterval=2;//ping 间隔时间
        if (nil != strProxyServer)
        {
           _xmppAutoPing.targetJID = [XMPPJID jidWithString: strProxyServer ];//设置ping目标服务器,如果为nil,则监听socketstream当前连接上的那个服务器
        }
    }
    //卸载监听
     [_xmppAutoPing   deactivate];
      [_xmppAutoPing   removeDelegate:self];
       _xmppAutoPing = nil;
    //ping XMPPAutoPingDelegate的委托方法:
    - (void)xmppAutoPingDidSendPing:(XMPPAutoPing *)sender
    {
        NSLog(@"- (void)xmppAutoPingDidSendPing:(XMPPAutoPing *)sender");
    }
    - (void)xmppAutoPingDidReceivePong:(XMPPAutoPing *)sender
    {
        NSLog(@"- (void)xmppAutoPingDidReceivePong:(XMPPAutoPing *)sender");
    }
       
    - (void)xmppAutoPingDidTimeout:(XMPPAutoPing *)sender
    {
        NSLog(@"- (void)xmppAutoPingDidTimeout:(XMPPAutoPing *)sender");
    }
  • 相关阅读:
    OpenCV 3-1.1-头文件
    安装ROS报错:The following packages have unmet dependenctes:
    机器人学——3.3-逆运动学
    机器人学——3.2-正运动学
    机器人学——3.1-机械臂DH参数
    机器人学——2.4-坐标系的旋转和运动增量
    机器人学——2.3-姿态插值和笛卡尔运动
    面向对象
    数组
    变量总结
  • 原文地址:https://www.cnblogs.com/weiboyuan/p/4593367.html
Copyright © 2020-2023  润新知