ObjXMPP  Diff

#import "XMPPPLAINAuth.h"
#import "XMPPStanza.h"
#import "XMPPJID.h"
#import "XMPPIQ.h"
#import "XMPPMessage.h"
#import "XMPPPresence.h"
#import "XMPPRoster.h"
#import "XMPPRoster_private.h"
#import "XMPPRosterItem.h"
#import "XMPPExceptions.h"

#define NS_BIND @"urn:ietf:params:xml:ns:xmpp-bind"
#define NS_CLIENT @"jabber:client"
#define NS_ROSTER @"jabber:iq:roster"
#define NS_SASL @"urn:ietf:params:xml:ns:xmpp-sasl"
#define NS_STARTTLS @"urn:ietf:params:xml:ns:xmpp-tls"
#define NS_STANZAS @"urn:ietf:params:xml:ns:xmpp-stanzas"
#define NS_SESSION @"urn:ietf:params:xml:ns:xmpp-session"
#define NS_STREAM @"http://etherx.jabber.org/streams"

@interface XMPPConnection ()
- (void)XMPP_startStream;
- (void)XMPP_handleStanza: (OFXMLElement*)elem;
- (void)XMPP_sendAuth: (OFString*)name;
- (void)XMPP_handleIQ: (XMPPIQ*)iq;
- (void)XMPP_handleMessage: (XMPPMessage*)msg;
- (void)XMPP_handlePresence: (XMPPPresence*)pres;

       withPrefix: (OFString*)prefix
	namespace: (OFString*)ns
       attributes: (OFArray*)attrs
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];

	if (![name isEqual: @"stream"] || ![prefix isEqual: @"stream"] ||
	    ![ns isEqual: NS_STREAM]) {
	    ![ns isEqual: XMPP_NS_STREAM]) {
		of_log(@"Did not get expected stream start!");
		assert(0);
	}

	for (OFXMLAttribute *attr in attrs) {
		if ([attr.name isEqual: @"from"] &&
		    ![attr.stringValue isEqual: server]) {

}

- (void)elementBuilder: (OFXMLElementBuilder*)b
       didBuildElement: (OFXMLElement*)elem
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];

	elem.defaultNamespace = NS_CLIENT;
	elem.defaultNamespace = XMPP_NS_CLIENT;
	[elem setPrefix: @"stream"
	   forNamespace: NS_STREAM];
	   forNamespace: XMPP_NS_STREAM];

	of_log(@"In:  %@", elem);

	[self XMPP_handleStanza: elem];

	[pool release];
}

- (void)XMPP_startStream
{
	[sock writeFormat: @"<?xml version='1.0'?>\n"
			   @"<stream:stream to='%@' xmlns='" NS_CLIENT @"' "
			   @"xmlns:stream='" NS_STREAM @"' "
			   @"<stream:stream to='%@' "
			   @"xmlns='" XMPP_NS_CLIENT @"' "
			   @"xmlns:stream='" XMPP_NS_STREAM @"' "
			   @"version='1.0'>", server];
}

- (void)XMPP_handleStanza: (OFXMLElement*)elem
{
	if ([elem.namespace isEqual: NS_CLIENT]) {
	if ([elem.namespace isEqual: XMPP_NS_CLIENT]) {
		if ([elem.name isEqual: @"iq"]) {
			[self XMPP_handleIQ: [XMPPIQ stanzaWithElement: elem]];
			return;
		}

		if ([elem.name isEqual: @"message"]) {
			[self XMPP_handleMessage:
			    [XMPPMessage stanzaWithElement: elem]];
			return;
		}

		if ([elem.name isEqual: @"presence"]) {
			[self XMPP_handlePresence:
			    [XMPPPresence stanzaWithElement: elem]];
			return;
		}

		assert(0);
	}

	if ([elem.namespace isEqual: NS_STREAM]) {
	if ([elem.namespace isEqual: XMPP_NS_STREAM]) {
		if ([elem.name isEqual: @"features"]) {
			[self XMPP_handleFeatures: elem];
			return;
		}

		assert(0);
	}

	if ([elem.namespace isEqual: NS_STARTTLS]) {
	if ([elem.namespace isEqual: XMPP_NS_STARTTLS]) {
		if ([elem.name isEqual: @"proceed"]) {
			/* FIXME: Catch errors here */
			sock = [[GTLSSocket alloc] initWithSocket: sock];

			/* Stream restart */
			parser.delegate = self;
			[self XMPP_startStream];
			return;
		}

		if ([elem.name isEqual: @"failure"])
			/* TODO: Find/create an exception to throw here */
			@throw [OFException newWithClass: isa];

		assert(0);
	}

	if ([elem.namespace isEqual: NS_SASL]) {
	if ([elem.namespace isEqual: XMPP_NS_SASL]) {
		if ([elem.name isEqual: @"challenge"]) {
			OFXMLElement *responseTag;
			OFDataArray *challenge =
			    [OFDataArray dataArrayWithBase64EncodedString:
			    [elem.children.firstObject stringValue]];
			OFDataArray *response = [authModule
			    calculateResponseWithChallenge: challenge];

			responseTag = [OFXMLElement elementWithName: @"response"
							  namespace: NS_SASL];
			responseTag = [OFXMLElement
			    elementWithName: @"response"
				  namespace: XMPP_NS_SASL];
			[responseTag addChild:
			    [OFXMLElement elementWithCharacters:
			    [response stringByBase64Encoding]]];

			[self sendStanza: responseTag];
			return;
		}

		iq.from = to;

		error = [OFXMLElement elementWithName: @"error"];
		[error addAttributeWithName: @"type"
				stringValue: @"cancel"];
		[error addChild:
		    [OFXMLElement elementWithName: @"service-unavailable"
					namespace: NS_STANZAS]];
					namespace: XMPP_NS_STANZAS]];
		[iq addChild: error];

		[self sendStanza: iq];
	}
}

- (void)XMPP_handleMessage: (XMPPMessage*)msg

		  didReceivePresence: pres];
}

- (void)XMPP_handleFeatures: (OFXMLElement*)elem
{
	OFXMLElement *starttls =
	    [elem elementsForName: @"starttls"
			namespace: NS_STARTTLS].firstObject;
			namespace: XMPP_NS_STARTTLS].firstObject;
	OFXMLElement *bind = [elem elementsForName: @"bind"
					 namespace: NS_BIND].firstObject;
	OFXMLElement *session = [elem elementsForName: @"session"
					    namespace: NS_SESSION].firstObject;
					 namespace: XMPP_NS_BIND].firstObject;
	OFXMLElement *session =
	    [elem elementsForName: @"session"
			namespace: XMPP_NS_SESSION].firstObject;
	OFArray *mechs = [elem elementsForName: @"mechanisms"
				     namespace: NS_SASL];
				     namespace: XMPP_NS_SASL];
	OFMutableArray *mechanisms = [OFMutableArray array];

	if (starttls != nil) {
		[self sendStanza:
		[self sendStanza: [OFXMLElement elementWithName: @"starttls"
						      namespace: NS_STARTTLS]];
		    [OFXMLElement elementWithName: @"starttls"
					namespace: XMPP_NS_STARTTLS]];
		return;
	}

	if (mechs.count > 0) {
		for (OFXMLElement *mech in [mechs.firstObject children])
			[mechanisms addObject:
			    [mech.children.firstObject stringValue]];

}

- (void)XMPP_sendAuth: (OFString*)name
{
	OFXMLElement *authTag;

	authTag = [OFXMLElement elementWithName: @"auth"
				      namespace: NS_SASL];
				      namespace: XMPP_NS_SASL];
	[authTag addAttributeWithName: @"mechanism"
			  stringValue: name];
	[authTag addChild: [OFXMLElement elementWithCharacters:
	    [[authModule clientFirstMessage] stringByBase64Encoding]]];

	[self sendStanza: authTag];
}

- (void)XMPP_sendResourceBind
{
	XMPPIQ *iq;
	OFXMLElement *bind;

	bindID = [[self generateStanzaID] retain];
	iq = [XMPPIQ IQWithType: @"set"
			     ID: bindID];

	bind = [OFXMLElement elementWithName: @"bind"
				   namespace: NS_BIND];
				   namespace: XMPP_NS_BIND];

	if (resource != nil)
		[bind addChild: [OFXMLElement elementWithName: @"resource"
						  stringValue: resource]];

	[iq addChild: bind];

	if (![iq.type isEqual: @"result"])
		assert(0);

	bindElem = iq.children.firstObject;

	if (![bindElem.name isEqual: @"bind"] ||
	    ![bindElem.namespace isEqual: NS_BIND])
	    ![bindElem.namespace isEqual: XMPP_NS_BIND])
		assert(0);

	jidElem = bindElem.children.firstObject;
	JID = [[XMPPJID alloc] initWithString:
	    [jidElem.children.firstObject stringValue]];

	[bindID release];

{
	XMPPIQ *iq;

	sessionID = [[self generateStanzaID] retain];
	iq = [XMPPIQ IQWithType: @"set"
			     ID: sessionID];
	[iq addChild: [OFXMLElement elementWithName: @"session"
					  namespace: NS_SESSION]];
					  namespace: XMPP_NS_SESSION]];
	[self sendStanza: iq];
}

- (void)XMPP_handleSession: (XMPPIQ*)iq
{
	if (![iq.type isEqual: @"result"])
		assert(0);

	if (rosterID != nil)
		assert(0);

	rosterID = [[self generateStanzaID] retain];
	iq = [XMPPIQ IQWithType: @"get"
			     ID: rosterID];
	[iq addChild: [OFXMLElement elementWithName: @"query"
					  namespace: NS_ROSTER]];
					  namespace: XMPP_NS_ROSTER]];
	[self sendStanza: iq];
}

- (void)XMPP_handleRoster: (XMPPIQ*)iq
{
	OFXMLElement *rosterElem;

	if (![iq.type isEqual: @"result"])
		assert(0);

	rosterElem = iq.children.firstObject;

	if (![rosterElem.name isEqual: @"query"] ||
	    ![rosterElem.namespace isEqual: NS_ROSTER])
	    ![rosterElem.namespace isEqual: XMPP_NS_ROSTER])
		assert(0);

	for (OFXMLElement *elem in rosterElem.children) {
		XMPPRosterItem *rosterItem;
		OFMutableArray *groups = [OFMutableArray array];

		if (![elem.name isEqual: @"item"] ||
		    ![elem.ns isEqual: NS_ROSTER])
		    ![elem.ns isEqual: XMPP_NS_ROSTER])
			continue;

		rosterItem = [XMPPRosterItem rosterItem];
		rosterItem.JID = [XMPPJID JIDWithString:
		    [elem attributeForName: @"jid"].stringValue];
		rosterItem.name = [elem attributeForName: @"name"].stringValue;
		rosterItem.subscription =
		    [elem attributeForName: @"subscription"].stringValue;

		for (OFXMLElement *groupElem in
		     [elem elementsForName: @"group"
				 namespace: NS_ROSTER])
				 namespace: XMPP_NS_ROSTER])
			[groups addObject:
			    [groupElem.children.firstObject stringValue]];

		if (groups.count > 0)
			rosterItem.groups = groups;

		[roster XMPP_addRosterItem: rosterItem];