/*
* Copyright (c) 2012, Florian Zeitz <florob@babelmonkeys.de>
* Copyright (c) 2019, Jonathan Schleifer <js@heap.zone>
*
* 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.
*/
#include <inttypes.h>
#import "XMPPStreamManagement.h"
#import "namespaces.h"
@implementation XMPPStreamManagement
- (instancetype)init
{
OF_INVALID_INIT_METHOD
}
- (instancetype)initWithConnection: (XMPPConnection *)connection
{
self = [super init];
@try {
_connection = connection;
[_connection addDelegate: self];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)dealloc
{
[_connection removeDelegate: self];
[super dealloc];
}
- (void)connection: (XMPPConnection *)connection
didReceiveElement: (OFXMLElement *)element
{
OFString *elementName = element.name;
OFString *elementNS = element.namespace;
if ([elementNS isEqual: XMPP_NS_SM]) {
if ([elementName isEqual: @"enabled"]) {
_receivedCount = 0;
return;
}
if ([elementName isEqual: @"failed"]) {
/* TODO: How do we handle this? */
return;
}
if ([elementName isEqual: @"r"]) {
OFXMLElement *ack =
[OFXMLElement elementWithName: @"a"
namespace: XMPP_NS_SM];
OFString *stringValue = [OFString
stringWithFormat: @"%" PRIu32, _receivedCount];
[ack addAttributeWithName: @"h"
stringValue: stringValue];
[connection sendStanza: ack];
}
}
if ([elementNS isEqual: XMPP_NS_CLIENT] &&
([elementName isEqual: @"iq"] ||
[elementName isEqual: @"presence"] ||
[elementName isEqual: @"message"]))
_receivedCount++;
}
/* TODO: Count outgoing stanzas here and cache them, send own ACK requests
- (void)connection: (XMPPConnection *)connection
didSendElement: (OFXMLElement *)element
{
}
*/
- (void)connection: (XMPPConnection *)connection
wasBoundToJID: (XMPPJID *)JID
{
if (connection.supportsStreamManagement)
[connection sendStanza:
[OFXMLElement elementWithName: @"enable"
namespace: XMPP_NS_SM]];
}
@end