/*
* Copyright (c) 2011, 2012, 2013, 2016, Jonathan Schleifer <js@heap.zone>
* Copyright (c) 2012, Florian Zeitz <florob@babelmonkeys.de>
*
* https://heap.zone/git/?p=objxmpp.git
*
* 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.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#define XMPP_ROSTER_M
#include <assert.h>
#import <ObjFW/OFInvalidArgumentException.h>
#import "XMPPRoster.h"
#import "XMPPRosterItem.h"
#import "XMPPConnection.h"
#import "XMPPIQ.h"
#import "XMPPJID.h"
#import "XMPPMulticastDelegate.h"
#import "namespaces.h"
@implementation XMPPRoster
@synthesize connection = _connection, dataStorage = _dataStorage;
@synthesize rosterItems = _rosterItems;
- initWithConnection: (XMPPConnection*)connection
{
self = [super init];
@try {
_rosterItems = [[OFMutableDictionary alloc] init];
_connection = connection;
[_connection addDelegate: self];
_delegates = [[XMPPMulticastDelegate alloc] init];
_dataStorage = [_connection dataStorage];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)dealloc
{
[_connection removeDelegate: self];
[_delegates release];
[_rosterItems release];
[super dealloc];
}
- (void)requestRoster
{
XMPPIQ *iq;
OFXMLElement *query;
_rosterRequested = true;
iq = [XMPPIQ IQWithType: @"get"
ID: [_connection generateStanzaID]];
query = [OFXMLElement elementWithName: @"query"
namespace: XMPP_NS_ROSTER];
if ([_connection supportsRosterVersioning]) {
OFString *ver =
[_dataStorage stringValueForPath: @"roster.ver"];
if (ver == nil)
ver = @"";
[query addAttributeWithName: @"ver"
stringValue: ver];
}
[iq addChild: query];
[_connection sendIQ: iq
callbackTarget: self
selector: @selector(XMPP_handleInitialRosterForConnection:
IQ:)];
}
- (bool)connection: (XMPPConnection*)connection
didReceiveIQ: (XMPPIQ*)iq
{
OFXMLElement *rosterElement;
OFXMLElement *element;
XMPPRosterItem *rosterItem;
OFString *origin;
rosterElement = [iq elementForName: @"query"
namespace: XMPP_NS_ROSTER];
if (rosterElement == nil)
return false;
if (![[iq type] isEqual: @"set"])
return false;
// Ensure the roster push has been sent by the server
origin = [[iq from] fullJID];
if (origin != nil && ![origin isEqual: [[connection JID] bareJID]])
return false;
element = [rosterElement elementForName: @"item"
namespace: XMPP_NS_ROSTER];
if (element != nil) {
rosterItem = [self XMPP_rosterItemWithXMLElement: element];
[_delegates broadcastSelector: @selector(
roster:didReceiveRosterItem:)
withObject: self
withObject: rosterItem];
[self XMPP_updateRosterItem: rosterItem];
}
if ([_connection supportsRosterVersioning]) {
OFString *ver =
[[rosterElement attributeForName: @"ver"] stringValue];
[_dataStorage setStringValue: ver
forPath: @"roster.ver"];
[_dataStorage save];
}
[connection sendStanza: [iq resultIQ]];
return true;
}
- (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];
}
- (void)addDelegate: (id <XMPPRosterDelegate>)delegate
{
[_delegates addDelegate: delegate];
}
- (void)removeDelegate: (id <XMPPRosterDelegate>)delegate
{
[_delegates removeDelegate: delegate];
}
- (void)setDataStorage: (id <XMPPStorage>)dataStorage
{
if (_rosterRequested)
/* FIXME: Find a better exception! */
@throw [OFInvalidArgumentException exception];
_dataStorage = dataStorage;
}
- (XMPPConnection*)connection
{
return _connection;
}
- (id <XMPPStorage>)dataStorage
{
return _dataStorage;
}
- (void)XMPP_updateRosterItem: (XMPPRosterItem*)rosterItem
{
if ([_connection supportsRosterVersioning]) {
OFMutableDictionary *items = [[[_dataStorage dictionaryForPath:
@"roster.items"] mutableCopy] autorelease];
if (items == nil)
items = [OFMutableDictionary dictionary];
if (![[rosterItem subscription] isEqual: @"remove"]) {
OFMutableDictionary *item = [OFMutableDictionary
dictionaryWithKeysAndObjects:
@"JID", [[rosterItem JID] bareJID],
@"subscription", [rosterItem subscription],
nil];
if ([rosterItem name] != nil)
[item setObject: [rosterItem name]
forKey: @"name"];
if ([rosterItem groups] != nil)
[item setObject: [rosterItem groups]
forKey: @"groups"];
[items setObject: item
forKey: [[rosterItem JID] bareJID]];
} else
[items removeObjectForKey: [[rosterItem JID] bareJID]];
[_dataStorage setDictionary: items
forPath: @"roster.items"];
}
if (![[rosterItem subscription] isEqual: @"remove"])
[_rosterItems setObject: rosterItem
forKey: [[rosterItem JID] bareJID]];
else
[_rosterItems removeObjectForKey: [[rosterItem JID] bareJID]];
}
- (XMPPRosterItem*)XMPP_rosterItemWithXMLElement: (OFXMLElement*)element
{
OFString *subscription;
OFEnumerator *groupEnumerator;
OFXMLElement *groupElement;
OFMutableArray *groups = [OFMutableArray array];
XMPPRosterItem *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"])
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];
return rosterItem;
}
- (void)XMPP_handleInitialRosterForConnection: (XMPPConnection*)connection
IQ: (XMPPIQ*)IQ
{
OFXMLElement *rosterElement;
OFEnumerator *enumerator;
OFXMLElement *element;
rosterElement = [IQ elementForName: @"query"
namespace: XMPP_NS_ROSTER];
if ([connection supportsRosterVersioning]) {
if (rosterElement == nil) {
OFDictionary *items = [_dataStorage
dictionaryForPath: @"roster.items"];
OFEnumerator *enumerator = [items objectEnumerator];
OFDictionary *item;
while ((item = [enumerator nextObject]) != nil) {
XMPPRosterItem *rosterItem;
XMPPJID *JID;
rosterItem = [XMPPRosterItem rosterItem];
JID = [XMPPJID JIDWithString:
[item objectForKey: @"JID"]];
[rosterItem setJID: JID];
[rosterItem setName:
[item objectForKey: @"name"]];
[rosterItem setSubscription:
[item objectForKey: @"subscription"]];
[rosterItem setGroups:
[item objectForKey: @"groups"]];
[_rosterItems setObject: rosterItem
forKey: [JID bareJID]];
}
} else
[_dataStorage setDictionary: nil
forPath: @"roster.items"];
}
enumerator = [[rosterElement children] objectEnumerator];
while ((element = [enumerator nextObject]) != nil) {
OFAutoreleasePool *pool;
XMPPRosterItem *rosterItem;
if (![[element name] isEqual: @"item"] ||
![[element namespace] isEqual: XMPP_NS_ROSTER])
continue;
pool = [[OFAutoreleasePool alloc] init];
rosterItem = [self XMPP_rosterItemWithXMLElement: element];
[self XMPP_updateRosterItem: rosterItem];
[pool release];
}
if ([connection supportsRosterVersioning] && rosterElement != nil) {
OFString *ver =
[[rosterElement attributeForName: @"ver"] stringValue];
[_dataStorage setStringValue: ver
forPath: @"roster.ver"];
[_dataStorage save];
}
[_delegates broadcastSelector: @selector(rosterWasReceived:)
withObject: self];
}
@end