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XMPP系列(二)----用户注册和用户登录功能

1.创建一个新工程



2.导入XMPP框架

最新的XMPP框架下载地址:https://github.com/robbiehanson/XMPPFramework

将XMPP的几个文件夹拖进工程中,需要的文件如下:


然后把Sample_XMPPFramework.h改名为XMPPFramework.h

接下来导入两个依赖库:libresolv.dylib和libxml2.dylib,然后添加header search:


再添加一个pch文件


在pch文件中添加如下代码:

#ifdef __OBJC__
    #import <UIKit/UIKit.h>

    #import "XMPPFramework.h"
#endif
再然后设置工程的pch文件



$SRCROOT后面是项目名/pch文件名。

做完以上步骤,项目就可以编译成功啦!

现在开始搭建项目的登录界面:

首先封装一个XMPP工具类:JKXMPPTool

.h文件

#import <Foundation/Foundation.h>

@interface JKXMPPTool : NSObject<XMPPStreamDelegate>

@property (nonatomic, strong) XMPPStream *xmppStream;
// 模块
@property (nonatomic, strong) XMPPAutoPing *xmppAutoPing;
@property (nonatomic, strong) XMPPReconnect *xmppReconnect;

@property (nonatomic, assign) BOOL  xmppNeedRegister;
@property (nonatomic, copy)   NSString *myPassword;

+ (instancetype)sharedInstance;
- (void)loginWithJID:(XMPPJID *)JID andPassword:(NSString *)password;
- (void)registerWithJID:(XMPPJID *)JID andPassword:(NSString *)password;

@end
.m文件

#import "JKXMPPTool.h"

@implementation JKXMPPTool

static JKXMPPTool *_instance;
+ (instancetype)sharedInstance
{
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        _instance = [JKXMPPTool new];
    });
    
    return _instance;
}

- (XMPPStream *)xmppStream
{
    if (!_xmppStream) {
        _xmppStream = [[XMPPStream alloc] init];
        
        //socket 连接的时候 要知道host port 然后connect
        [self.xmppStream setHostName:kXMPP_HOST];
        [self.xmppStream setHostPort:kXMPP_PORT];
        //为什么是addDelegate? 因为xmppFramework 大量使用了多播代理multicast-delegate ,代理一般是1对1的,但是这个多播代理是一对多得,而且可以在任意时候添加或者删除
        [self.xmppStream addDelegate:self delegateQueue:dispatch_get_main_queue()];
     
    }
    return _xmppStream;
}

- (void)loginWithJID:(XMPPJID *)JID andPassword:(NSString *)password
{
    // 1.建立TCP连接
    // 2.把我自己的jid与这个TCP连接绑定起来(即使匿名登录,依然得设置JID,只是我们可以设置一个任意的JID,例如<span style="font-family: Arial, Helvetica, sans-serif;">anonymous@<domain></span>)
    // 3.认证(登录:验证jid与密码是否正确,加密方式 不可能以明文发送)--(出席:怎样告诉服务器我上线,以及我得上线状态
    //这句话会在xmppStream以后发送XML的时候加上 <message from="JID">
    [self.xmppStream setMyJID:JID];
    self.myPassword = password;
    self.xmppNeedRegister = NO;
    [self.xmppStream connectWithTimeout:XMPPStreamTimeoutNone error:nil];
}

//注册方法里没有调用auth方法
- (void)registerWithJID:(XMPPJID *)JID andPassword:(NSString *)password
{
    [self.xmppStream setMyJID:JID];
    self.myPassword = password;
    self.xmppNeedRegister = YES;
    [self.xmppStream connectWithTimeout:XMPPStreamTimeoutNone error:nil];
}

- (void)goOnline
{
    // 发送一个<presence/> 默认值avaliable 在线 是指服务器收到空的presence 会认为是这个
    XMPPPresence *presence = [XMPPPresence presence];
    
    //发送复杂一点的出席状态
    //<presence type="avaliable">
    //        <status>我很忙</status>
    //        <show>xa</show>
    //    </presence>
    [presence addChild:[DDXMLNode elementWithName:@"status" stringValue:@"我现在很忙"]];
    [presence addChild:[DDXMLNode elementWithName:@"show" stringValue:@"xa"]];
    
    [self.xmppStream sendElement:presence];
}

#pragma mark ===== XMPPStream delegate =======
//socket 连接建立成功
- (void)xmppStream:(XMPPStream *)sender socketDidConnect:(GCDAsyncSocket *)socket
{
    NSLog(@"%s",__func__);
}

//这个是xml流初始化成功
- (void)xmppStreamDidConnect:(XMPPStream *)sender
{
    NSLog(@"%s",__func__);
    //匿名登录 会随机生成一个username和JID,这个是在服务器的内存中随机生成,不会写入服务器的数据表,例如生成的jid为<p class="p1"><span class="s1">1nv8l4khxg@im.joker.cn/1nv8l4khxg</span></p>
    //为了防止客户端匿名登录,服务器有策略关闭匿名
    //    [self.xmppStream authenticateAnonymously:nil];
    if (self.xmppNeedRegister) {
        [self.xmppStream registerWithPassword:self.myPassword error:nil];
    } else {
        [self.xmppStream authenticateWithPassword:self.myPassword error:nil];
    }
}

- (void)xmppStreamDidDisconnect:(XMPPStream *)sender withError:(NSError *)error
{
    NSLog(@"%s",__func__);
}

//登录失败
- (void)xmppStream:(XMPPStream *)sender didNotAuthenticate:(DDXMLElement *)error
{
    NSLog(@"%s",__func__);
}

//登录成功
- (void)xmppStreamDidAuthenticate:(XMPPStream *)sender
{
    NSLog(@"%s",__func__);
    
    [self goOnline];
    
    [[NSNotificationCenter defaultCenter] postNotificationName:kLOGIN_SUCCESS object:nil];
}


@end

然后是登录功能:

登录按钮的action如下:

#pragma mark - click event
/** 登录事件 */
- (IBAction)loginClick:(id)sender {
    NSString *username = _usernameField.text;
    NSString *password = _passwordField.text;
    
    NSString *message = nil;
    if (username.length <= 0) {
        message = @"用户名未填写";
    } else if (password.length <= 0) {
        message = @"密码未填写";
    }
    
    if (message.length > 0) {
        UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:nil message:message delegate:nil cancelButtonTitle:@"我知道了" otherButtonTitles:nil];
        [alertView show];
    } else {
        [[JKXMPPTool sharedInstance] loginWithJID:[XMPPJID jidWithUser:username domain:@"im.joker.cn" resource:@"iOS"] andPassword:password];
    }
}
用通知返回登录成功的消息

- (void)loginSuccess
{
    NSLog(@"loginSuccess");
    
    [self performSegueWithIdentifier:@"loginSegue" sender:self];
}

再然后实现注册的功能:


- (IBAction)registAction:(id)sender {
    NSString *username = _usernameField.text;
    NSString *password = _passwordField.text;
    NSString *confirm = _confirmField.text;
    
    NSString *message = nil;
    if (username.length <= 0) {
        message = @"用户名未填写";
    } else if (password.length <= 0) {
        message = @"密码未填写";
    } else if (confirm.length <= 0) {
        message = @"确认密码未填写";
    }
    
    if (message.length > 0) {
        UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:nil message:message delegate:nil cancelButtonTitle:@"我知道了" otherButtonTitles:nil];
        [alertView show];
    } else if (![password isEqualToString:confirm]) {
        message = @"密码与确认密码不一致";
        UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:nil message:message delegate:nil cancelButtonTitle:@"我知道了" otherButtonTitles:nil];
        [alertView show];
    } else {
        [[JKXMPPTool sharedInstance] registerWithJID:[XMPPJID jidWithUser:username domain:@"im.joker.cn" resource:@"iOS"] andPassword:password];
    }
}
因为注册时,不需要进行认证,注册会直接返回BOOL结果,所以改进连接代理方法:

//这个是xml流初始化成功
- (void)xmppStreamDidConnect:(XMPPStream *)sender
{
    NSLog(@"%s",__func__);
    if (self.xmppNeedRegister) {
        BOOL result = [self.xmppStream registerWithPassword:self.myPassword error:nil];
        NSNumber *number = [NSNumber numberWithBool:result];
        
        [[NSNotificationCenter defaultCenter] postNotificationName:kREGIST_RESULT object:number];
        
    } else {
        [self.xmppStream authenticateWithPassword:self.myPassword error:nil];
    }
}

下载地址:点击下载

github地址:https://github.com/Joker-King/ChatDemo




posted on 2015-07-20 22:54  王小航  阅读(354)  评论(0编辑  收藏  举报

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