ObjXMPP  Check-in [31e88fde56]

 * \brief A class representing an entity responding to Service Discovery
 *	  queries
 */
@interface XMPPDiscoEntity: XMPPDiscoNode <XMPPConnectionDelegate>
{
	OFMutableDictionary *_discoNodes;
	XMPPConnection *_connection;
	OFString *_capsNode;
}
#ifdef OF_HAVE_PROPERTIES
/**
 * \brief The XMPPDiscoNodes this entity provides Services Discovery
 *	  responses for
 *
 * This usually contains at least all immediate child nodes, but may contain
 * any number of nodes nested more deeply.
 */
@property (readonly) OFDictionary *discoNodes;
/// \brief The node advertised for the entity's capabilites
@property (readonly) OFString *capsNode;
#endif

/**
 * \brief Creates a new autoreleased XMPPDiscoEntity with the specified
 *	  connection.
 *
 * \param connection The XMPPConnection to serve responses on.
 *	  This must already be bound to a resource)
 * \return A new autoreleased XMPPDiscoEntity
 */
+ discoEntityWithConnection: (XMPPConnection*)connection;

/**
 * \brief Creates a new autoreleased XMPPDiscoEntity with the specified
 *	  connection.
 *
 * \param connection The XMPPConnection to serve responses on.
 *	  This must already be bound to a resource)
 * \param capsNode The node advertised for the entity's capabilites
 * \return A new autoreleased XMPPDiscoEntity
 */
+ discoEntityWithConnection: (XMPPConnection*)connection
		   capsNode: (OFString*)capsNode;

/**
 * \brief Initializes an already allocated XMPPDiscoEntity with the specified
 *	  connection.
 *
 * \param connection The XMPPConnection to serve responses on.
 *	  This must already be bound to a resource)
 * \return An initialized XMPPDiscoEntity
 */
- initWithConnection: (XMPPConnection*)connection;

/**
 * \brief Initializes an already allocated XMPPDiscoEntity with the specified
 *	  connection.
 *
 * \param connection The XMPPConnection to serve responses on.
 *	  This must already be bound to a resource)
 * \param capsNode The node advertised for the entity's capabilites
 * \return An initialized XMPPDiscoEntity
 */
- initWithConnection: (XMPPConnection*)connection
	    capsNode: (OFString*)capsNode;

/**
 * \brief Adds a XMPPDiscoNode to provide responses for.
 *
 * \param node The XMPPDiscoNode to provide responses for
 */
- (void)addDiscoNode: (XMPPDiscoNode*)node;

/**
 * \brief Calculates the Entity Capabilities Hash of the entity
 *
 * \return A OFString containing the capabilities hash
 */
- (OFString*)capsHash;

- (OFDictionary*)discoNodes;
- (OFString*)capsNode;
@end

#import "namespaces.h"

@implementation XMPPDiscoEntity
+ discoEntityWithConnection: (XMPPConnection*)connection
{
	return [[[self alloc] initWithConnection: connection] autorelease];
}

+ discoEntityWithConnection: (XMPPConnection*)connection
		   capsNode: (OFString*)capsNode
{
	return [[[self alloc] initWithConnection: connection
					capsNode: capsNode] autorelease];
}

- initWithConnection: (XMPPConnection*)connection
{
	return [self initWithConnection: connection
			       capsNode: nil];
}

- initWithConnection: (XMPPConnection*)connection
	    capsNode: (OFString*)capsNode
{
	self = [super initWithJID: [connection JID]
			     node: nil];

	@try {
		_discoNodes = [OFMutableDictionary new];
		_connection = connection;
		_capsNode = [capsNode copy];

		[_connection addDelegate: self];
	} @catch (id e) {
		[self release];
		@throw e;
	}

}

- (void)addDiscoNode: (XMPPDiscoNode*)node
{
	[_discoNodes setObject: node
			forKey: [node node]];
}

- (OFString*)capsNode
{
	OF_GETTER(_capsNode, YES);
}

- (OFString*)capsHash
{
	OFMutableString *caps = [OFMutableString string];
	OFEnumerator *enumerator;
	XMPPDiscoIdentity *identity;
	OFString *feature;

	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];

	       connection: (XMPPConnection*)connection
{
	XMPPIQ *resultIQ;
	OFXMLElement *response;
	OFEnumerator *enumerator;
	OFString *feature;
	XMPPDiscoIdentity *identity;
	OFXMLElement *query = [IQ elementForName: @"query"
				       namespace: XMPP_NS_DISCO_INFO];
	OFString *node = [[query attributeForName: @"node"] stringValue];

	if (!(node == _node) && ![node isEqual: _node])
		return NO;

	resultIQ = [IQ resultIQ];
	response = [OFXMLElement elementWithName: @"query"
				       namespace: XMPP_NS_DISCO_INFO];
	[resultIQ addChild: response];

	enumerator = [_identities objectEnumerator];