XMPP 推送通知导致消息出现问题（延迟 + 重复）

Question

XMPP 推送通知导致消息出现问题（延迟 + 重复）。

我已经使用 XMPP + Ejabberd 成功创建了一个聊天应用程序。

没有推送通知：

单聊和群聊消息都运行良好。

有推送通知：

有时一切正常 perfectly.Notifications 被触发并收到消息，没有任何延迟或重复。

有时不会触发任何通知（当应用程序在后台运行时），但可以完美接收消息。

有时会触发通知，但收到的消息会延迟和重复。

服务器端的一切都已配置correctly.They建议通过确保每个会话都连接到一个持久资源来解决您的问题，使用空格保持连接稳定并在连接丢失时重新绑定相同的资源.

我有流管理，xmppStream.enableBackgroundingOnSocket并且应用程序启用了 IP 语音服务后台模式。

当用户注销或应用程序终止时，我会拆除流并发送不可用状态。

下面是我的 xmpp 流推送通知代码和 connect/disconnect。

我正在拔头发this.if你们有什么想法请告诉我。

谢谢。

#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

您应该通知流管理断开您的会话并且在 tearDown 中调用此方法断开连接：

    [self.stream disconnectAfterSending];

Answer 2

您需要确保在连接到 ejabberd 时传递资源。该资源应在首次应用安装和后续登录时随机生成，您应始终使用相同的资源。否则，您会在服务器上的每个新登录时创建一个新的长运行分离会话，并导致消息被路由到所有挂起的会话。当这些过期时，它们会再次被路由等

在XMPP中，资源基本上就是设备的标识符。您需要使用 "user@domain/resource"

形式的字符串生成用于登录的 JID

XMPP 推送通知导致消息出现问题（延迟 + 重复）

XMPP push notifications causing problems (delay + duplications) in messages

xmpp

apple-push-notifications

ejabberd

xmppframework

ejabberd-saas