/*
* Copyright (c) 2013, Florian Zeitz <florob@babelmonkeys.de>
* Copyright (c) 2013, 2016, 2019, 2021, Jonathan Schleifer <js@nil.im>
*
* https://heap.zone/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.
*/
#import "XMPPDiscoEntity.h"
#import "XMPPDiscoIdentity.h"
#import "XMPPDiscoNode.h"
#import "XMPPDiscoNode+Private.h"
#import "XMPPIQ.h"
#import "XMPPJID.h"
#import "namespaces.h"
@implementation XMPPDiscoEntity
@synthesize discoNodes = _discoNodes, capsNode = _capsNode;
+ (instancetype)discoNodeWithJID: (XMPPJID *)JID
node: (OFString *)node
{
OF_UNRECOGNIZED_SELECTOR
}
+ (instancetype)discoNodeWithJID: (XMPPJID *)JID
node: (OFString *)node
name: (OFString *)name
{
OF_UNRECOGNIZED_SELECTOR
}
+ (instancetype)discoEntityWithConnection: (XMPPConnection *)connection
{
return [[[self alloc] initWithConnection: connection] autorelease];
}
+ (instancetype)discoEntityWithConnection: (XMPPConnection *)connection
capsNode: (OFString *)capsNode
{
return [[[self alloc] initWithConnection: connection
capsNode: capsNode] autorelease];
}
- (instancetype)initWithJID: (XMPPJID *)JID
node: (nullable OFString *)node
{
OF_INVALID_INIT_METHOD
}
- (instancetype)initWithJID: (XMPPJID *)JID
node: (nullable OFString *)node
name: (nullable OFString *)name
{
OF_INVALID_INIT_METHOD
}
- (instancetype)initWithConnection: (XMPPConnection *)connection
{
return [self initWithConnection: connection
capsNode: nil];
}
- (instancetype)initWithConnection: (XMPPConnection *)connection
capsNode: (OFString *)capsNode
{
self = [super initWithJID: [connection JID]
node: nil
name: nil];
@try {
_discoNodes = [[OFMutableDictionary alloc] init];
_connection = connection;
_capsNode = [capsNode copy];
[_connection addDelegate: self];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)dealloc
{
[_connection removeDelegate: self];
[_discoNodes release];
[super dealloc];
}
- (void)addDiscoNode: (XMPPDiscoNode *)node
{
[_discoNodes setObject: node
forKey: node.node];
}
- (OFString *)capsHash
{
OFMutableString *caps = [OFMutableString string];
OFSHA1Hash *hash = [OFSHA1Hash hashWithAllowsSwappableMemory: true];
OFData *digest;
for (XMPPDiscoIdentity *identity in _identities)
[caps appendFormat: @"%@/%@//%@<",
identity.category, identity.type, identity.name];
for (OFString *feature in _features)
[caps appendFormat: @"%@<", feature];
[hash updateWithBuffer: caps.UTF8String
length: caps.UTF8StringLength];
digest = [OFData dataWithItems: hash.digest
count: hash.digestSize];
return digest.stringByBase64Encoding;
}
- (void)connection: (XMPPConnection *)connection
wasBoundToJID: (XMPPJID *)JID
{
_JID = [JID copy];
}
- (bool)connection: (XMPPConnection *)connection
didReceiveIQ: (XMPPIQ *)IQ
{
if (![IQ.to isEqual: _JID])
return false;
OFXMLElement *query = [IQ elementForName: @"query"
namespace: XMPP_NS_DISCO_ITEMS];
if (query != nil) {
OFString *node = [query attributeForName: @"node"].stringValue;
if (node == nil)
return [self xmpp_handleItemsIQ: IQ
connection: connection];
XMPPDiscoNode *responder = [_discoNodes objectForKey: node];
if (responder != nil)
return [responder xmpp_handleItemsIQ: IQ
connection: connection];
return false;
}
query = [IQ elementForName: @"query"
namespace: XMPP_NS_DISCO_INFO];
if (query != nil) {
OFString *node = [query attributeForName: @"node"].stringValue;
if (node == nil)
return [self xmpp_handleInfoIQ: IQ
connection: connection];
OFString *capsNode =
[_capsNode stringByAppendingFormat: @"#%@", self.capsHash];
if ([capsNode isEqual: node])
return [self xmpp_handleInfoIQ: IQ
connection: connection];
XMPPDiscoNode *responder = [_discoNodes objectForKey: node];
if (responder != nil)
return [responder xmpp_handleInfoIQ: IQ
connection: connection];
return false;
}
return false;
}
@end