Retrieving Archived messages from XMPP server in ios - ios

Question

I am integrating XMPP functionality in my ios app and i came across a problem i cannot solve.
The problem is i cannot get archived messages from the server. My client is able to log in and i have tested several service calls (send, receive messages, getting info about a user) with success.
Upon sending
<iq type='get' id='pref1'>
<pref xmlns='urn:xmpp:archive'/>
</iq>
The response is
SEND: <iq type="get"><pref xmlns="urn:xmpp:archive"/></iq>
RECV: <iq xmlns="jabber:client" type="error" to="1#iis2/ae76edc"><error code="501"
type="cancel"><feature-not-implemented xmlns="urn:ietf:params:xml:ns:xmpp-
stanzas"/</error></iq>
The server administrator is able to see the archived messages, as he activated archiving.
Must something be done server or client side in order to achieve this functionality? Could it be that seeing old messages and the server actually implementing and supporting XEP-0136, are two different things?

Answer 1

If you want fetch from server means use this code
internal var xmppMAM: XMPPMessageArchiveManagement?
func setupXMPPMam(){
xmppMAM = XMPPMessageArchiveManagement.init()
xmppMAM?.addDelegate(self, delegateQueue: .global(qos: .background))
// stream is XMPPStream
xmppMAM?.activate(stream)
}
call the setupMam function once XMPP connect
func retrieveArchiveMessage(){
let set = XMPPResultSet(max: totalCount)
xmppMAM?.retrieveMessageArchive(at: XMPPJID(string: user), withFields: nil, with: set)
}
func xmppStream(_ sender: XMPPStream, willReceive message: XMPPMessage) -> XMPPMessage? {
if let forwardedMessage = message.mamResult?.forwardedMessage{
debugPrint(forwardedMessage)
return message
}
}
if you using Robbiehanson framework above code is working perfectly for fetch value from server.
I hope this article is useful for you #Akash Thakkar

Answer 2

an example to get archived messages in Swift 4
declares and initializes the variables XMPPMessageArchivingCoreDataStorage where I initialize the XMPPStream
var xmppMessageStorage: XMPPMessageArchivingCoreDataStorage?
var xmppMessageArchiving: XMPPMessageArchiving?
xmppMessageStorage = XMPPMessageArchivingCoreDataStorage.sharedInstance()
xmppMessageArchiving = XMPPMessageArchiving(messageArchivingStorage: xmppMessageStorage)
xmppMessageArchiving?.clientSideMessageArchivingOnly = true
xmppMessageArchiving?.activate(stream)
xmppMessageArchiving?.addDelegate(self, delegateQueue: DispatchQueue.main)
doing this, whenever a message arrives, this will cause it to be archived without needing to do anything else.
then, to retrieve the archived message
func RecibedMessageArchiving(idFriend: String) {
let JabberIDFriend = idFriend //id friend chat, example test1#example.com
let moc = xmppMessageStorage?.mainThreadManagedObjectContext
let entityDescription = NSEntityDescription.entity(forEntityName: "XMPPMessageArchiving_Message_CoreDataObject", in: moc!)
let request = NSFetchRequest<NSFetchRequestResult>()
let predicateFormat = "bareJidStr like %# "
let predicate = NSPredicate(format: predicateFormat, JabberIDFriend)
request.predicate = predicate
request.entity = entityDescription
//jabberID id del usuario, cliente
var jabberIDCliente = ""
if let jabberj = globalChat.value(forKey: "jabberID"){
jabberIDCliente = jabberj as! String
}
do {
let results = try moc?.fetch(request)
for message: XMPPMessageArchiving_Message_CoreDataObject? in results as? [XMPPMessageArchiving_Message_CoreDataObject?] ?? [] {
var element: DDXMLElement!
do {
element = try DDXMLElement(xmlString: (message as AnyObject).messageStr)
} catch _ {
element = nil
}
let body: String
let sender: String
let date: NSDate
let isIncomings: Bool
if message?.body != nil {
body = (message?.body)!
} else {
body = ""
}
if element.attributeStringValue(forName: "to") == JabberIDFriend {
sender = jabberIDCliente
isIncomings = false
} else {
sender = "test2#example.com"
isIncomings = true
}
var m: [AnyHashable : Any] = [:]
m["msg"] = message?.body
print("body", message?.body)
print("test", element.attributeStringValue(forName: "to"))
print("test2", element.attributeStringValue(forName: "body"))
}
} catch _ {
//catch fetch error here
}
}