/*
* Copyright (c) 2011, Jonathan Schleifer <js@webkeks.org>
*
* https://webkeks.org/hg/objxmpp/
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice is present in all copies.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <assert.h>
#import "XMPPRoster.h"
#import "XMPPRosterItem.h"
#import "XMPPConnection.h"
#import "XMPPIQ.h"
#import "XMPPJID.h"
#import "namespaces.h"
@implementation XMPPRoster
- initWithConnection: (XMPPConnection*)conn
{
self = [super init];
@try {
connection = [conn retain];
rosterItems = [[OFMutableDictionary alloc] init];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)dealloc
{
[connection release];
[rosterItems release];
[rosterID release];
[super dealloc];
}
- (void)XMPP_addRosterItem: (XMPPRosterItem*)rosterItem
{
return [self XMPP_updateRosterItem: rosterItem];
}
- (void)XMPP_updateRosterItem: (XMPPRosterItem*)rosterItem
{
[rosterItems setObject: rosterItem
forKey: [[rosterItem JID] bareJID]];
}
- (void)XMPP_deleteRosterItem: (XMPPRosterItem*)rosterItem
{
[rosterItems removeObjectForKey: [[rosterItem JID] bareJID]];
}
- (OFDictionary*)rosterItems
{
return [[rosterItems copy] autorelease];
}
- (void)requestRoster
{
XMPPIQ *iq;
if (rosterID != nil)
assert(0);
rosterID = [[connection generateStanzaID] retain];
iq = [XMPPIQ IQWithType: @"get"
ID: rosterID];
[iq addChild: [OFXMLElement elementWithName: @"query"
namespace: XMPP_NS_ROSTER]];
[connection sendStanza: iq];
}
- (BOOL)handleIQ: (XMPPIQ*)iq
{
OFXMLElement *rosterElement;
OFXMLElement *element;
XMPPRosterItem *rosterItem = nil;
OFString *subscription;
OFEnumerator *enumerator;
BOOL isPush = ![[iq ID] isEqual: rosterID];
rosterElement = [iq elementForName: @"query"
namespace: XMPP_NS_ROSTER];
if (rosterElement == nil)
return NO;
if (isPush) {
if (![[iq type] isEqual: @"set"])
return NO;
} else {
if (![[iq type] isEqual: @"result"])
return NO;
}
enumerator = [[rosterElement children] objectEnumerator];
while ((element = [enumerator nextObject]) != nil) {
OFMutableArray *groups = [OFMutableArray array];
OFEnumerator *groupEnumerator;
OFXMLElement *groupElement;
if (![[element name] isEqual: @"item"] ||
![[element namespace] isEqual: XMPP_NS_ROSTER])
continue;
rosterItem = [XMPPRosterItem rosterItem];
[rosterItem setJID: [XMPPJID JIDWithString:
[[element attributeForName: @"jid"] stringValue]]];
[rosterItem setName:
[[element attributeForName: @"name"] stringValue]];
subscription = [[element attributeForName:
@"subscription"] stringValue];
if (![subscription isEqual: @"none"] &&
![subscription isEqual: @"to"] &&
![subscription isEqual: @"from"] &&
![subscription isEqual: @"both"] &&
(![subscription isEqual: @"remove"] || !isPush))
subscription = @"none";
[rosterItem setSubscription: subscription];
groupEnumerator = [[element
elementsForName: @"group"
namespace: XMPP_NS_ROSTER] objectEnumerator];
while ((groupElement = [groupEnumerator nextObject]) != nil)
[groups addObject: [groupElement stringValue]];
if ([groups count] > 0)
[rosterItem setGroups: groups];
if ([subscription isEqual: @"remove"])
[self XMPP_deleteRosterItem: rosterItem];
else
[self XMPP_addRosterItem: rosterItem];
if (isPush && [[connection delegate] respondsToSelector:
@selector(connection:didReceiveRosterItem:)])
[[connection delegate] connection: connection
didReceiveRosterItem: rosterItem];
}
if (isPush) {
XMPPIQ *response = [XMPPIQ IQWithType: @"result"
ID: [iq ID]];
[response setTo: [iq from]];
[connection sendStanza: response];
} else {
if ([[connection delegate] respondsToSelector:
@selector(connectionDidReceiveRoster:)])
[[connection delegate]
connectionDidReceiveRoster: connection];
[rosterID release];
rosterID = nil;
}
return YES;
}
- (void)addRosterItem: (XMPPRosterItem*)rosterItem
{
[self updateRosterItem: rosterItem];
}
- (void)updateRosterItem: (XMPPRosterItem*)rosterItem
{
XMPPIQ *iq = [XMPPIQ IQWithType: @"set"
ID: [connection generateStanzaID]];
OFXMLElement *query = [OFXMLElement elementWithName: @"query"
namespace: XMPP_NS_ROSTER];
OFXMLElement *item = [OFXMLElement elementWithName: @"item"
namespace: XMPP_NS_ROSTER];
OFEnumerator *enumerator;
OFString *group;
[item addAttributeWithName: @"jid"
stringValue: [[rosterItem JID] bareJID]];
if ([rosterItem name] != nil)
[item addAttributeWithName: @"name"
stringValue: [rosterItem name]];
enumerator = [[rosterItem groups] objectEnumerator];
while ((group = [enumerator nextObject]) != nil)
[item addChild: [OFXMLElement elementWithName: @"group"
namespace: XMPP_NS_ROSTER
stringValue: group]];
[query addChild: item];
[iq addChild: query];
[connection sendStanza: iq];
}
- (void)deleteRosterItem: (XMPPRosterItem*)rosterItem
{
XMPPIQ *iq = [XMPPIQ IQWithType: @"set"
ID: [connection generateStanzaID]];
OFXMLElement *query = [OFXMLElement elementWithName: @"query"
namespace: XMPP_NS_ROSTER];
OFXMLElement *item = [OFXMLElement elementWithName: @"item"
namespace: XMPP_NS_ROSTER];
[item addAttributeWithName: @"jid"
stringValue: [[rosterItem JID] bareJID]];
[item addAttributeWithName: @"subscription"
stringValue: @"remove"];
[query addChild: item];
[iq addChild: query];
[connection sendStanza: iq];
}
@end