Juick.h

//
//  Juick.h
//  iJuick
//
//  Created by Vladislav Szajniak on 26.08.09.
//  Copyright 2009 keks.dev. All rights reserved.
//

#import <Foundation/Foundation.h>

#import "XMPP.h"

@class MulticastDelegate;

typedef enum {
	MOD_PM,
	MOD_POST,
	MOD_REPLY
} ModalMessageType;

typedef enum {
	MSG_NIL,
	MSG_LIST_FRIENDS,
	MSG_RESTORE_MESSAGE,
	MSG_RESTORE_REPLIES,
	MSG_RETRIEVE_IDENTIFIERS,
	MSG_DETAILED_SUBSCRITOR,
	MSG_SUBSCRITOR_MESSAGES,
	MSG_TIMELINE
} JuickMessageType;


@interface Juick : NSObject {
	XMPPClient *client;
	XMPPUser *juick;
	JuickMessageType expectedMessage;
	int myUID;
	NSString *myNickname;
	NSString *myActiveJID;
	int nextLastAfterMID;
	
	NSMutableArray *friends;
	NSMutableDictionary *lastMessages;
	NSMutableArray *lastMessagesIndex;
	NSMutableDictionary *friendMessages;
	NSMutableDictionary *privateMessages;

	MulticastDelegate *updateDelegate;
}

- (int)getUIDForName:(NSString *)name;
- (NSString *)getAvatarURLForUID:(NSString *)uid;
- (NSXMLElement *)sendMessage:(NSString *)bare_text;
- (void)applySubscribtionAction:(NSString *)action forMessage:(int)mid;

- (BOOL)loginToDomain:(NSString *)domain atPort:(int)port withLogin:(NSString *)login andPassword:(NSString *)password;
- (void)postPrivateMessage:(NSString *)text to:(NSString *)username;
- (void)postMessage:(NSString *)text withTags:(NSArray *)tags;
- (void)postReply:(NSString *)text toMessage:(NSString *)mrid;
- (void)subscribeToUser:(NSString *)username;
- (void)unsubscribeFromUser:(NSString *)username;
- (void)subscribeToMessage:(int)mid;
- (void)unsubscribeFromMessage:(int)mid;
- (void)requestLastMessagesAfter:(int)aftermid;
- (void)requestFriendMessagesForUser:(int)uid after:(int)aftermid;
- (void)requestMessage:(int)mid;
- (void)requestRepliesForMessage:(int)mid;
- (void)requestFriendListForUser:(int)uid;
- (void)requestSubscriberListForUser:(int)uid;

@property (assign) int myUID;
@property (retain) NSString *myNickname;
@property (retain) NSString *myActiveJID;

@property (assign) MulticastDelegate *updateDelegate;

@property (retain) NSMutableArray *friends;
@property (retain) NSMutableDictionary *lastMessages;
@property (retain) NSMutableArray *lastMessagesIndex;
@property (retain) NSMutableDictionary *friendMessages;
@property (retain) NSMutableDictionary *privateMessages;

@end

@interface NSObject (JuickUpdateDelegate)

- (void)friendListUpdated;
- (void)friendListUpdatingDidBegin;
- (void)friendListUpdatingDidEnd;
- (void)privateMessageRecieved:(NSXMLElement*)message;
- (void)friendMessageRecieved:(NSXMLElement*)message;
- (void)lastMessageRecieved:(NSXMLElement*)message;
- (void)lastMessagesUpdatingDidBegin;
- (void)lastMessagesUpdatingDidEnd:(int)count;
- (void)replyRecieved:(NSXMLElement*)replyMessage forMessage:(NSString *)mid;

@end

Juick.m

//
//  Juick.m
//  iJuick
//
//  Created by Vladislav Szajniak on 25.08.09.
//  Copyright 2009 keks.dev. All rights reserved.
//

#import "Juick.h"
#import "MulticastDelegate.h"

@implementation Juick

@synthesize myUID;
@synthesize myActiveJID;
@synthesize myNickname;
@synthesize updateDelegate;

@synthesize friends;
@synthesize lastMessages;
@synthesize lastMessagesIndex;
@synthesize friendMessages;
@synthesize privateMessages;

- (id)init
{
	if((self = [super init]))
	{
		updateDelegate = [[MulticastDelegate alloc] init];
	}
	return self;
}

- (void)dealloc
{
	[updateDelegate release];
	[super dealloc];
}

- (void)retrieveMyIdentifiers {
//	<iq to='juick@juick.com' id='id345' type='get'>
//	<query xmlns='http://juick.com/query#users'/>
//	</iq>

	NSXMLElement *query = [NSXMLElement elementWithName:@"query"];
	[query addAttributeWithName:@"xmlns" stringValue:@"http://juick.com/query#users"];
	
	NSXMLElement *element = [NSXMLElement elementWithName:@"iq"];
	[element addAttributeWithName:@"id" stringValue:[NSString stringWithFormat:@"id%d", myUID]];
	[element addAttributeWithName:@"type" stringValue:@"get"];
	[element addAttributeWithName:@"to" stringValue:@"juick@juick.com"];
	[element addChild:query];
	
	NSLog(@"Retrieving information about current identifiers...");
	[client sendElement:element];
}

- (int)getUIDForName:(NSString *)name {
	return 6189; 
}

- (NSString *)getAvatarURLForUID:(NSString *)uid {
	NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"http://i.juick.com/as/%@.png", uid]]];
	[request setTimeoutInterval:3.0];
	[request setHTTPMethod:@"HEAD"];
	NSHTTPURLResponse *response;
	NSError *error;
	//NSLog(@"Temporary connection: Loading image started (%@.png)", uid_str);
	// Here the data could be used directly to build ImageView (HTTPMethod should be leaved as default GET value)
	NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
	(void) data;
	int status_code = [response statusCode];
	//NSLog(@"Temporary connection: Loading image done [Data: (%@); Response code: (%d); Error: (%@)]", data, status_code, error);
	NSString *default_url = [NSString stringWithFormat:@"file://%@", [[NSBundle mainBundle] pathForResource:@"no_avatar_small" ofType:@"png"]];
	return [NSString stringWithString: status_code < 400 ?
			[NSString stringWithFormat:@"http://i.juick.com/as/%@.png", uid] : default_url];
}

- (BOOL)loginToDomain:(NSString *)domain atPort:(int)port withLogin:(NSString *)login andPassword:(NSString *)password {
	//NSString *domain = @"jabber.ru";
	//int port = 5222;
	
	juick = nil;
	friends = nil;
	nextLastAfterMID = 0;
	lastMessages = [[NSMutableDictionary alloc] initWithCapacity:0];
	lastMessagesIndex = [[NSMutableArray alloc] initWithCapacity:0];
	friendMessages = [[NSMutableDictionary alloc] initWithCapacity:0];
	privateMessages = [[NSMutableDictionary alloc] initWithCapacity:0];
	
	client = [[XMPPClient alloc] init];
	[client addDelegate:self];
	[client setDomain:domain];
	[client setPort:port];
	XMPPJID *jid = [XMPPJID jidWithUser:login domain:domain resource:@"iJuick"];
	[client setMyJID:jid];
	[client setPassword:password];
	
	NSLog(@"isConnected:%d isAuthenticated:%d", [client isConnected], [client isAuthenticated]);
	[client connect];
	
	return TRUE;
}

- (NSXMLElement *)sendMessage:(NSString *)rawText {
//	<message to="juick@juick.com/Juick">
//	<body>*first *second some text</body>
//	<juick xmlns="http://juick.com/message" />
//	</message>
	NSXMLElement *body = [NSXMLElement elementWithName:@"body"];
	[body setStringValue:rawText];
	
	NSXMLElement *juick_tag = [NSXMLElement elementWithName:@"juick"];
	[juick_tag addAttributeWithName:@"xmlns" stringValue:@"http://juick.com/message"];
	
	NSXMLElement *element = [NSXMLElement elementWithName:@"message"];
	[element addAttributeWithName:@"to" stringValue:@"juick@juick.com"];
	[element addChild:body];
	[element addChild:juick_tag];
	
	[client sendElement:element];	
	return element;
}

- (void)postPrivateMessage:(NSString *)text to:(NSString *)username {
	NSXMLElement *message = [self sendMessage:[NSString stringWithFormat:@"PM @%@ %@", username, text]];
	//Tweak the message object
	NSXMLElement *body = [[message elementsForName:@"body"] objectAtIndex:0];
	[body detach];
	NSXMLElement *juick_tag = [[message elementsForName:@"juick"] objectAtIndex:0]; 
	[juick_tag detach];
	[body setStringValue:text];
	[juick_tag addAttributeWithName:@"uname" stringValue:@"me"];
	[juick_tag addAttributeWithName:@"uid" stringValue:[NSString stringWithFormat:@"%d", myUID]];
	[juick_tag addAttributeWithName:@"ts" stringValue:[[NSDate date] description]];
	[juick_tag addChild:body];
	// Store private message in stack
	NSMutableArray *msg_set = [privateMessages objectForKey:username];
	if (!msg_set)
	{
		msg_set = [[NSMutableArray alloc] initWithCapacity:1];
		[privateMessages setObject:msg_set forKey:username];
	}
	[msg_set addObject:juick_tag];
	NSLog(@"Storing private message: %@", [juick_tag description]);
	[updateDelegate privateMessageRecieved:message];	
}

- (void)postMessage:(NSString *)text withTags:(NSArray *)tags {
	NSMutableString *msg = [[NSMutableString alloc] initWithString:@""];
	for (NSString *tag in tags) {
		[msg appendFormat:@"*%@ ", tag];
	}
	[msg appendString:text];
	NSLog(@"NEW_MESSAGE: %@", msg);
	
	//NSXMLElement *message =
	[self sendMessage:msg];
}

- (void)postReply:(NSString *)text toMessage:(NSString *)mrid {
	//NSXMLElement *message =
	[self sendMessage:[NSString stringWithFormat:@"#%@ %@", mrid, text]];
}

- (void)subscribeToUser:(NSString *)username {
	[self sendMessage:[NSString stringWithFormat:@"S %@", username]];
}

- (void)unsubscribeFromUser:(NSString *)username {
	[self sendMessage:[NSString stringWithFormat:@"U %@", username]];
}

- (void)applySubscribtionAction:(NSString *)action forMessage:(int)mid {
//	<iq to='juick@juick.com' id='id123' type='set'>
//	<subscriptions xmlns='http://juick.com/subscriptions#messages'
//    action='subscribe' mid='123456'/>
//	</iq>
	NSXMLElement *query = [NSXMLElement elementWithName:@"subscriptions"];
	[query addAttributeWithName:@"xmlns" stringValue:@"http://juick.com/subscriptions#messages"];
	[query addAttributeWithName:@"mid" stringValue:[NSString stringWithFormat:@"%d", mid]];
	[query addAttributeWithName:@"action" stringValue:action];
	
	NSXMLElement *element = [NSXMLElement elementWithName:@"iq"];
	[element addAttributeWithName:@"id" stringValue:[NSString stringWithFormat:@"id%d", myUID]];
	[element addAttributeWithName:@"type" stringValue:@"set"];
	[element addAttributeWithName:@"to" stringValue:@"juick@juick.com"];
	[element addChild:query];
	
	[client sendElement:element];		
}

- (void)subscribeToMessage:(int)mid {
	[self applySubscribtionAction:@"subscribe" forMessage:mid];
}

- (void)unsubscribeFromMessage:(int)mid {
	[self applySubscribtionAction:@"unsubscribe" forMessage:mid];
}

- (void)requestLastMessagesAfter:(int)aftermid {
//	<iq to='juick@juick.com' id='id123' type='get'>
//	<query xmlns='http://juick.com/query#messages' aftermid='123456'/>
//	</iq>
	NSXMLElement *query = [NSXMLElement elementWithName:@"query"];
	[query addAttributeWithName:@"xmlns" stringValue:@"http://juick.com/query#messages"];
	if (aftermid)
	{
		[query addAttributeWithName:@"aftermid" stringValue:[NSString stringWithFormat:@"%d", aftermid]];
	}
	
	NSXMLElement *element = [NSXMLElement elementWithName:@"iq"];
	[element addAttributeWithName:@"id" stringValue:[NSString stringWithFormat:@"id%d", myUID]];
	[element addAttributeWithName:@"type" stringValue:@"get"];
	[element addAttributeWithName:@"to" stringValue:@"juick@juick.com"];
	[element addChild:query];
	
	[client sendElement:element];		
}

- (void)requestFriendMessagesForUser:(int)uid after:(int)aftermid {
//	<iq to='juick@juick.com' id='id123' type='get'>
//	<query xmlns='http://juick.com/query#messages'
//		uid='123' aftermid='123456'/>
//	</iq>
	NSXMLElement *query = [NSXMLElement elementWithName:@"query"];
	[query addAttributeWithName:@"xmlns" stringValue:@"http://juick.com/query#messages"];
	[query addAttributeWithName:@"uid" stringValue:[NSString stringWithFormat:@"%d", uid]];
	if (aftermid)
	{
		[query addAttributeWithName:@"aftermid" stringValue:[NSString stringWithFormat:@"%d", aftermid]];
	}
	
	NSXMLElement *element = [NSXMLElement elementWithName:@"iq"];
	[element addAttributeWithName:@"id" stringValue:[NSString stringWithFormat:@"id%d", myUID]];
	[element addAttributeWithName:@"type" stringValue:@"get"];
	[element addAttributeWithName:@"to" stringValue:@"juick@juick.com"];
	[element addChild:query];
	
	[client sendElement:element];		
}

- (void)requestMessage:(int)mid {
//	<iq to='juick@juick.com' id='id123' type='get'>
//	<query xmlns='http://juick.com/query#messages' mid='123456'/>
//	</iq>
	NSXMLElement *query = [NSXMLElement elementWithName:@"query"];
	[query addAttributeWithName:@"xmlns" stringValue:@"http://juick.com/query#messages"];
	[query addAttributeWithName:@"mid" stringValue:[NSString stringWithFormat:@"%d", mid]];
	
	NSXMLElement *element = [NSXMLElement elementWithName:@"iq"];
	[element addAttributeWithName:@"id" stringValue:[NSString stringWithFormat:@"id%d", myUID]];
	[element addAttributeWithName:@"type" stringValue:@"get"];
	[element addAttributeWithName:@"to" stringValue:@"juick@juick.com"];
	[element addChild:query];
	
	[client sendElement:element];		
}

- (void)requestRepliesForMessage:(int)mid {
//	<iq to='juick@juick.com' id='id123' type='get'>
//	<query xmlns='http://juick.com/query#messages' mid='123456' rid='*'/>
//	</iq>
	NSXMLElement *query = [NSXMLElement elementWithName:@"query"];
	[query addAttributeWithName:@"xmlns" stringValue:@"http://juick.com/query#messages"];
	[query addAttributeWithName:@"mid" stringValue:[NSString stringWithFormat:@"%d", mid]];
	[query addAttributeWithName:@"rid" stringValue:[NSString stringWithString:@"*"]];
	
	NSXMLElement *element = [NSXMLElement elementWithName:@"iq"];
	[element addAttributeWithName:@"id" stringValue:[NSString stringWithFormat:@"id%d", myUID]];
	[element addAttributeWithName:@"type" stringValue:@"get"];
	[element addAttributeWithName:@"to" stringValue:@"juick@juick.com"];
	[element addChild:query];
	
	[client sendElement:element];	
}

- (void)requestFriendListForUser:(int)uid {
//	<iq to='juick@juick.com' id='id123' type='get'>
//	<query xmlns='http://juick.com/query#users' friends='123'/>
//	</iq>
	NSXMLElement *query = [NSXMLElement elementWithName:@"query"];
	[query addAttributeWithName:@"xmlns" stringValue:@"http://juick.com/query#users"];
	[query addAttributeWithName:@"friends" stringValue:[NSString stringWithFormat:@"%d", uid]];
	
	NSXMLElement *element = [NSXMLElement elementWithName:@"iq"];
	[element addAttributeWithName:@"id" stringValue:[NSString stringWithFormat:@"id%d", uid]];
	[element addAttributeWithName:@"type" stringValue:@"get"];
	[element addAttributeWithName:@"to" stringValue:@"juick@juick.com"];
	[element addChild:query];
	
	[client sendElement:element];	
}

- (void)requestSubscriberListForUser:(int) uid {
	//	<iq to='juick@juick.com' id='id123' type='get'>
	//	<query xmlns='http://juick.com/query#users' subscribers='123'/>
	//	</iq>
	NSXMLElement *query = [NSXMLElement elementWithName:@"query"];
	[query addAttributeWithName:@"xmlns" stringValue:@"http://juick.com/query#users"];
	[query addAttributeWithName:@"subscribers" stringValue:[NSString stringWithFormat:@"%d", uid]];
	
	NSXMLElement *element = [NSXMLElement elementWithName:@"iq"];
	[element addAttributeWithName:@"id" stringValue:[NSString stringWithFormat:@"id%d", uid]];
	[element addAttributeWithName:@"type" stringValue:@"get"];
	[element addAttributeWithName:@"to" stringValue:@"juick@juick.com"];
	[element addChild:query];
	
	[client sendElement:element];	
}

- (void)pollForLatestMessages:(NSTimer*)theTimer {
	NSLog(@"PollForLatestMessages Timer Fired! (Latest MID: %d)", nextLastAfterMID);
	[updateDelegate lastMessagesUpdatingDidBegin];
	[self requestLastMessagesAfter:nextLastAfterMID];
}

- (void)xmppClientDidConnect:(XMPPClient *)sender {
	NSLog(@"+++ xmppClientDidConnect");
	NSLog(@"isConnected:%d isAuthenticated:%d", [client isConnected], [client isAuthenticated]);
	[client authenticateUser];
}

- (void)xmppClientDidDisconnect:(XMPPClient *)sender {
	NSLog(@"+++ xmppClientDidDisconnect");
	NSLog(@"isConnected:%d isAuthenticated:%d", [client isConnected], [client isAuthenticated]);
	[juick release];
	juick = nil;
	[friends release];
	friends = nil;
	[client release];
	client = nil;
	
	[lastMessages release];
	[friendMessages release];
	[privateMessages release];	
}

- (void)xmppClientDidAuthenticate:(XMPPClient *)sender {
	NSLog(@"+++ xmppClientDidAuthenticate");
	NSLog(@"isConnected:%d isAuthenticated:%d", [client isConnected], [client isAuthenticated]);
}

- (void)xmppClientDidUpdateRoster:(XMPPClient *)sender {
	NSLog(@"+++ xmppClientDidUpdateRoster");
	if (juick)
		return;
	
	NSArray *contacts = [sender sortedUsersByName];
	NSLog(@"Contacts: <%@>", contacts);
	for (XMPPUser *contact in contacts)
	{
		if ([[[contact jid] bare] isEqualToString:@"juick@juick.com"])
		{
			NSLog(@"JUICK detected!!!!");
			juick = [contact retain];
//			myUID = [self getUIDForName:@"iJuick"];
			expectedMessage = MSG_RETRIEVE_IDENTIFIERS;
			[self retrieveMyIdentifiers];
		}
	}
}

- (void)xmppClient:(XMPPClient *)sender didReceiveIQ:(XMPPIQ *)iq {
	NSLog(@"+++ didReceiveIQ");
	NSLog(@"IQ: <%@>", iq);
	if (expectedMessage == MSG_LIST_FRIENDS)
	{
		NSLog(@"MSG_LIST_FRIENDS");
		if ([[[iq attributeForName:@"type"] stringValue] isEqualToString:@"error"])
		{
			friends = nil;
			NSLog(@"JUICK ERROR: Couldn't get friendlist");
			// TODO: Generate an error
		}
		else
		{
			NSXMLElement *query = [[iq elementsForName:@"query"] objectAtIndex:0];
			NSMutableArray *users = [[NSMutableArray alloc] initWithArray:[query elementsForName:@"user"]];
			friends = [users retain];
			NSLog(@"Friends: <%@>", friends);
		}
		[updateDelegate friendListUpdated];
		[updateDelegate friendListUpdatingDidEnd];
		expectedMessage = MSG_NIL;
	}
	else if (expectedMessage == MSG_RESTORE_MESSAGE)
	{
		NSLog(@"MSG_RESTORE_MESSAGE");
		expectedMessage = MSG_RESTORE_REPLIES;
		NSXMLElement *query = [[iq elementsForName:@"query"] objectAtIndex:0];
		[query detach];
		[self xmppClient:sender didReceiveMessage:[XMPPMessage messageFromElement:query]];
		
	}
	else if (expectedMessage == MSG_RESTORE_REPLIES)
	{
		NSLog(@"MSG_RESTORE_REPLIES");
		expectedMessage = MSG_NIL;
		NSXMLElement *query = [[iq elementsForName:@"query"] objectAtIndex:0];
		for (NSXMLElement *juick_tag in [query elementsForName:@"juick"]) {
			[juick_tag detach];
			NSXMLElement *msg = [NSXMLElement elementWithName:@"message"];
			[msg addChild:juick_tag];			
			[self xmppClient:sender didReceiveMessage:[XMPPMessage messageFromElement:msg]];
		}
	}
	else if (expectedMessage == MSG_RETRIEVE_IDENTIFIERS)
	{
		NSLog(@"MSG_RETRIEVE_IDENTIFIERS");
		expectedMessage = MSG_NIL;
		NSXMLElement *query = [[iq elementsForName:@"query"] objectAtIndex:0];
		NSXMLElement *user = [[query elementsForName:@"user"] objectAtIndex:0];
		myUID = [[[user attributeForName:@"uid"] stringValue] integerValue];
		myNickname = [[user attributeForName:@"uname"] stringValue];
		myActiveJID = [[user attributeForName:@"jid"] stringValue];
		NSLog(@"We're logged in as: %@ (#%d) from JID: %@", myNickname, myUID, myActiveJID);
		
		[updateDelegate friendListUpdatingDidBegin];
		[self requestFriendListForUser:myUID];
		expectedMessage = MSG_LIST_FRIENDS;
		NSTimer *pollingLatestTimer = [NSTimer scheduledTimerWithTimeInterval:33 target:self selector:@selector(pollForLatestMessages:) userInfo:nil repeats:YES];			
		[pollingLatestTimer setFireDate:[NSDate dateWithTimeIntervalSinceNow:1]];
		// Test messages on startup - 2 B REMOVED:
		//[self postMessage:@"Тестирование тэгов (и geo-а)..." withTags:[NSArray arrayWithObjects:@"geo", @"test", nil]];
		//[self postPrivateMessage:@"Напишите мне письмо..." to:@"kekssw"];
		//[self requestRepliesForMessage:256789];
		//[self requestSubscriberListForUser:myUID];		
//		[updateDelegate identifiersUpdated];
	}
	else
	{
		// No message expected. Let's assume them to be a response of polling for Last Messages
		NSLog(@"MSG_NIL === MSG_LATEST_MESSAGE_POLLING");
		int msgCount = 0;
		if ([[[iq attributeForName:@"type"] stringValue] isEqualToString:@"error"])
		{
			NSLog(@"404 ERROR = No new messages");
		}
		else
		{
			NSXMLElement *query = [[iq elementsForName:@"query"] objectAtIndex:0];
			msgCount = [[query elementsForName:@"juick"] count];
			for (NSXMLElement *juick_tag in [query elementsForName:@"juick"]) {
				[juick_tag detach];
				[juick_tag addAttributeWithName:@"unread" stringValue:@"1"];
				NSString *mid = [[juick_tag attributeForName:@"mid"] stringValue];
				[lastMessages setObject:juick_tag forKey:mid];
				[lastMessagesIndex addObject:mid];
				[updateDelegate lastMessageRecieved:juick_tag];
				int currentMID = [mid intValue];
				if (currentMID > nextLastAfterMID) nextLastAfterMID = currentMID;
			}
			//NSLog(@"lastMessagesIndex now is: %@", lastMessagesIndex);
		}
		[updateDelegate lastMessagesUpdatingDidEnd:msgCount];
	}
	NSLog(@"--- didReceiveIQ");
}

- (void)xmppClient:(XMPPClient *)sender didReceiveMessage:(XMPPMessage *)message {
	NSLog(@"+++ didReceiveMessage");
	NSLog(@"Message: <%@>", message);
	
	NSArray *obj = [message elementsForName:@"juick"];
	if (![obj count])
	{
		NSLog(@"Juick stanza missed - suspected to be a text response on the previously sent message");
	}
	else
	{
		NSXMLElement *juick_tag = [obj objectAtIndex:0];
		[juick_tag detach];
		NSString *user_name = [[juick_tag attributeForName:@"uname"] stringValue];
		NSString *mid = [[juick_tag attributeForName:@"mid"] stringValue];
		
		if (!mid)
		{
			NSLog(@"MSG: Private message recieved");
			[juick_tag addAttributeWithName:@"ts" stringValue:[[NSDate date] description]];
			NSMutableArray *msg_set = [privateMessages objectForKey:user_name];
			if (!msg_set)
			{
				msg_set = [[NSMutableArray alloc] initWithCapacity:1];
				[privateMessages setObject:msg_set forKey:user_name];
			}
			[msg_set addObject:juick_tag];
			[updateDelegate privateMessageRecieved:juick_tag];
		}
		else
		{
			NSString *rid = [[juick_tag attributeForName:@"rid"] stringValue];
			if (!rid)
			{
				NSLog(@"MSG: Friend message recieved");
				[friendMessages setObject:juick_tag forKey:mid];
				[updateDelegate friendMessageRecieved:juick_tag];
			}
			else
			{
				NSLog(@"MSG: Reply message recieved");
				NSXMLElement *original_post = [friendMessages objectForKey:mid];
				if (!original_post)
				{
					expectedMessage = MSG_RESTORE_MESSAGE;
					[self requestMessage:[mid intValue]];
					[self requestRepliesForMessage:[mid intValue]];
					// TODO: Restore original post with its comments (including current one)
				}
				else
				{
					[original_post addChild:juick_tag];
					[updateDelegate replyRecieved:juick_tag forMessage:mid];
				}
			}
		}
		NSMutableString *msg = [[NSMutableString alloc] initWithString: user_name];
		[msg appendFormat:@": %@", [[[juick_tag elementsForName:@"body"] objectAtIndex:0] stringValue]];
		NSLog(@" >> %@ ", msg);
	}
	NSLog(@"--- didReceiveMessage");
}
/*
- (void)xmppClient:(XMPPClient *)sender didReceiveMessage:(XMPPMessage *)message {
	NSLog(@"+++ didReceiveMessage");
	NSString *msg = [[message elementsForName:@"body"] description];
	NSMutableArray *users = [[NSMutableArray alloc] initWithArray:[msg componentsSeparatedByString:@"\n"]];
	[users removeObjectAtIndex:0];
	[users removeLastObject];
	
	NSString *end = [[users objectAtIndex:0] description];
	[users removeObjectAtIndex:0];
	[users insertObject:[end substringFromIndex:10] atIndex:0]; //Trim "  <body>" prefix
	
	end = [[users lastObject] description];
	[users removeLastObject];
	[users addObject:[end substringToIndex:[end length]-7]]; //Trim "</body>" suffix
	
	if (expectedMessage == MSG_LIST_FRIENDS)
	{
		NSLog(@"MSG_LIST_FRIENDS");
		[users removeObjectAtIndex:0];
		friends = [users retain];
		NSLog([friends componentsJoinedByString:@" == "]);
		[updateDelegate friendListUpdated];
	}
	if (expectedMessage == MSG_DETAILED_SUBSCRITOR)
	{
		NSLog(@"MSG_DETAILED_SUBSCRITOR");
		NSMutableDictionary *details = [[NSMutableDictionary alloc] init];
		for (NSObject *line in users)
		{
			NSString *prop = [line description];
			NSArray *pair = [prop componentsSeparatedByString:@": "];
			[details setValue:[[pair objectAtIndex:1] description] forKey:[[pair objectAtIndex:0] description]];
		}
		//anotherViewController.details = details;
		NSLog([users description]);
	}
	if (expectedMessage == MSG_SUBSCRITOR_MESSAGES)
	{
		NSLog(@"MSG_SUBSCRITOR_MESSAGES");
		//[(MessageViewController *) self.navigationController.topViewController setMessages:users];
		NSLog(@"Data renewal");
		//[[(MessageViewController *) self.navigationController.topViewController tableView] reloadData];
	}
	expectedMessage = MSG_NIL;
	[users release];
}
*/
@end

Objective-C Juick library.