why is the block of code inside func call is not executed? - ios

Question

I am trying to implement an Xmpp client into my application.I am planning on using the following code inside my application but some part of the code doesn't seem to be executed which prevents me to connect to a server. https://github.com/processone/xmpp-messenger-ios
I am trying to connect to a server with my jabberID and password but for some this code is never executed:
if let _ = error {
let alertController = UIAlertController(title: "Sorry", message: "An error occured: \(error)", preferredStyle: UIAlertControllerStyle.Alert)
alertController.addAction(UIAlertAction(title: "Ok", style: UIAlertActionStyle.Default, handler: { (UIAlertAction) -> Void in
//do smt
}))
self.presentViewController(alertController, animated: true, completion: nil)
} else {
self.dismissViewControllerAnimated(true, completion: nil)
}
Here is the whole code that is related to the problem:
#IBAction func validate(sender: AnyObject) {
if OneChat.sharedInstance.isConnected() {
OneChat.sharedInstance.disconnect()
usernameTextField.hidden = false
passwordTextField.hidden = false
validateButton.setTitle("Validate", forState: UIControlState.Normal)
} else {
OneChat.sharedInstance.connect(username: self.usernameTextField.text!, password: self.passwordTextField.text!) {(stream, error) -> Void in
if let _ = error {
let alertController = UIAlertController(title: "Sorry", message: "An error occured: \(error)", preferredStyle: UIAlertControllerStyle.Alert)
alertController.addAction(UIAlertAction(title: "Ok", style: UIAlertActionStyle.Default, handler: { (UIAlertAction) -> Void in
//do smt
}))
self.presentViewController(alertController, animated: true, completion: nil)
} else {
self.dismissViewControllerAnimated(true, completion: nil)
}
}
}
}
public typealias OneChatConnectCompletionHandler = (stream: XMPPStream, error: DDXMLElement?) -> Void
public func connect(username username: String, password: String, completionHandler completion:OneChatConnectCompletionHandler) {
if isConnected() {
streamDidConnectCompletionBlock = completion
self.streamDidConnectCompletionBlock!(stream: self.xmppStream!, error: nil)
return
}
if (username == "kXMPPmyJID" && NSUserDefaults.standardUserDefaults().stringForKey(kXMPP.myJID) == "kXMPPmyJID") || (username == "kXMPPmyJID" && NSUserDefaults.standardUserDefaults().stringForKey(kXMPP.myJID) == nil) {
streamDidConnectCompletionBlock = completion
streamDidConnectCompletionBlock!(stream: self.xmppStream!, error: DDXMLElement(name: "Please set crendentials before trying to connect"))
return
}
if username != "kXMPPmyJID" {
setValue(username, forKey: kXMPP.myJID)
setValue(password, forKey: kXMPP.myPassword)
}
if let jid = NSUserDefaults.standardUserDefaults().stringForKey(kXMPP.myJID) {
xmppStream?.myJID = XMPPJID.jidWithString(jid)
} else {
streamDidConnectCompletionBlock = completion //was false
streamDidConnectCompletionBlock!(stream: self.xmppStream!, error: DDXMLElement(name: "Bad username"))
}
if let password = NSUserDefaults.standardUserDefaults().stringForKey(kXMPP.myPassword) {
self.password = password
} else {
streamDidConnectCompletionBlock = completion //was false
streamDidConnectCompletionBlock!(stream: self.xmppStream!, error: DDXMLElement(name: "Bad password"))
}
try! xmppStream!.connectWithTimeout(XMPPStreamTimeoutNone)
streamDidConnectCompletionBlock = completion
}

Answer 1

Perhaps, you are expecting a time-out that never will happened (configuration of the library)
I had the same problem and, finally, I fount that my problem was hostname and port. Did you try to use something like this:
let usuario = "name#domain.com";
OneChat.sharedInstance.connect(username: usuario, password: pass) { (stream, error) -> Void in
if let _ = error {
let alertController = UIAlertController(title: "Sorry", message: "An error occured: \(error)", preferredStyle: UIAlertControllerStyle.Alert)
alertController.addAction(UIAlertAction(title: "Ok", style: UIAlertActionStyle.Default, handler: { (UIAlertAction) -> Void in
//do something
}))
self.presentViewController(alertController, animated: true, completion: nil)
} else {
print("I did it!")
}
}