Question

XMPP推送通知导致消息出现问题（延迟+重复）。

我已使用XMPP + Ejabberd成功创建了一个聊天应用程序。

没有推送通知：

单个和群组聊天消息都能正常运行。

使用推送通知：

有时一切都运作正常。触发通知并收到消息，不会有任何延迟或重复。

有时不会触发任何通知（在后台使用应用），但会完整地收到消息。

有时会触发通知，但会收到延迟和重复的消息。

服务器端的所有内容都配置正确。建议通过确保每个会话与一个持久资源连接来修复您的问题，使用空格保持活动连接稳定，并且当连接丢失时仅使用相同资源重新绑定。

我有流管理，xmppStream.enableBackgroundingOnSocket和App提供启用IP语音服务的后台模式。

当用户注销或应用程序终止时，我将拆除流并发送不可用的状态。

以下是我的xmpp流推送通知和连接/断开连接的代码。

我正在拔头发。如果你们有任何想法，请告诉我。

感谢。

#pragma mark - Connect/Disconnect

- (BOOL)connect {

if (!_xmppStream) {
    NSLog(@"Setting up Stream");
    [self setupStream];
}

if (![_xmppStream isDisconnected]) {
    return YES;
}

NSString *jabberID = [[NSUserDefaults standardUserDefaults] stringForKey:@"userID"];
NSString *myPassword = [[NSUserDefaults standardUserDefaults] stringForKey:@"userPassword"];


if (jabberID == nil || myPassword == nil) {
    return NO;
}
[_xmppStream setMyJID:[XMPPJID jidWithString:jabberID]];
_password = myPassword;

NSError *error = nil;

if (![_xmppStream connectWithTimeout:XMPPStreamTimeoutNone error:&error]){

    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error" message:[NSString stringWithFormat:@"Can't connect to server! %@", [error localizedDescription]] delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil];
    [alert show];
    return NO;
}
 return YES;
 }

- (void)disconnect {

[self goOffline];
[self teardownStream];

}

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

  [self goOnline];

//Stream Management

NSXMLElement *enable = [NSXMLElement elementWithName:@"enable" xmlns:@"urn:xmpp:sm:3"];
[enable addAttributeWithName:@"resume" stringValue:@"true"];
[_xsm.xmppStream sendElement:enable];

//Push
[self configurePushNotifications];
//

}

-(void)configurePushNotifications{

NSString *jabberID = [[NSUserDefaults standardUserDefaults] stringForKey:@"userID"];

NSXMLElement *iq = [NSXMLElement elementWithName:@"iq"];
[iq addAttributeWithName:@"type" stringValue:@"set"];
[iq addAttributeWithName:@"id" stringValue:idString];

NSXMLElement *push = [NSXMLElement elementWithName:@"push" xmlns:@"p1:push"];

NSXMLElement *keepalive = [NSXMLElement elementWithName:@"keepalive"];
[keepalive addAttributeWithName:@"max" integerValue:30];

NSXMLElement *session = [NSXMLElement elementWithName:@"session"];
[session addAttributeWithName:@"duration" integerValue:60];

NSXMLElement *body = [NSXMLElement elementWithName:@"body"];
[body addAttributeWithName:@"send" stringValue:@"all"];
[body addAttributeWithName:@"groupchat" stringValue:@"true"];
[body addAttributeWithName:@"from" stringValue:jabberID];

NSXMLElement *status = [NSXMLElement elementWithName:@"status"];
[status addAttributeWithName:@"type" stringValue:[NSString stringWithFormat:@"New message from %@",jabberID]];

NSXMLElement *offline = [NSXMLElement elementWithName:@"offline" stringValue:@"true"];

[push addChild:keepalive];
[push addChild:session];
[push addChild:body];
[push addChild:status];
[push addChild:offline];

NSXMLElement *notification = [NSXMLElement elementWithName:@"notification"];
[notification addChild:[NSXMLElement elementWithName:@"type" stringValue:@"applepush"]];
[notification addChild:[NSXMLElement elementWithName:@"id" stringValue:_userDeviceToken]];

[push addChild:notification];

NSXMLElement *appid = [NSXMLElement elementWithName:@"appid" stringValue:@"appid"];

[push addChild:appid];

[iq addChild:push];

[[self xmppStream] sendElement:iq];


 }

- (void)setupStream {

_xmppStream = [[XMPPStream alloc] init];
_xmppStream.hostName = kHostName;
_xmppStream.hostPort = kHostPort;
_xmppStream.enableBackgroundingOnSocket = YES;
[_xmppStream addDelegate:self delegateQueue:dispatch_get_main_queue()];

//XMPPReconnect

_xmppReconnect = [[XMPPReconnect alloc] init];
[_xmppReconnect activate:_xmppStream];

//Stream Management

_xsm = [[XMPPStreamManagement alloc] init];
[_xsm enableStreamManagementWithResumption:YES maxTimeout:0];
[_xsm activate:_xmppStream];

//Last Activity

_xmppLastActivity = [[XMPPLastActivity alloc] initWithDispatchQueue:dispatch_get_main_queue()];
[_xmppLastActivity addDelegate:self delegateQueue:dispatch_get_main_queue()];
[_xmppLastActivity activate:_xmppStream];

 }

 - (void)goOnline {
XMPPPresence *presence = [XMPPPresence presence];
[[self xmppStream] sendElement:presence];
 }

 - (void)goOffline {
XMPPPresence *presence = [XMPPPresence presenceWithType:@"unavailable"];
[[self xmppStream] sendElement:presence];
}

- (void)teardownStream {

[_xmppStream disconnect];

[_xmppStream removeDelegate:self];
[_xmppReconnect removeDelegate:self];

[_xmppLastActivity removeDelegate:self];

[_xmppReconnect deactivate];


_xmppStream = nil;
_xmppReconnect = nil;
_xmppLastActivity = nil;

  }

Answer 1

您需要确保在连接到ejabberd时传递资源。资源应该在第一次应用安装时随机生成，并且在后续登录时，您应该始终使用相同的资源。否则，您将在服务器上的每个新登录名上创建一个新的长时间运行的分离会话，并使消息路由到所有挂起的会话。当这些过期时，它们会被再次路由等。

在XMPP中，资源基本上是设备的标识符。您需要使用表格字符串＆＃34; user @ domain / resource＆＃34;

生成用于登录的JID

Answer 2

您应该通知流管理断开您的会话和在tearDown：

中调用此方法进行断开连接

    [self.stream disconnectAfterSending];

XMPP推送通知导致邮件

2 个答案: