ObjXMPP  Check-in [758ecec9ee]

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Comment:Correctly handle stream restart.
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SHA3-256: 758ecec9ee9b74b2aa16de7c858d78374917811340f73cc3e96d586b65d5c0d3
User & Date: js on 2011-04-23 22:41:18
Other Links: manifest | tags
Context
2011-04-25
17:48
Move all roster handling code to XMPPRoster. check-in: 55e37a4da2 user: js tags: trunk
2011-04-23
22:41
Correctly handle stream restart. check-in: 758ecec9ee user: js tags: trunk
20:40
Adjust to recent ObjFW changes. check-in: d7038ec36d user: js tags: trunk
Changes
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Modified src/XMPPConnection.h from [72439fbdc3] to [2a89c085aa].

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 */
@interface XMPPConnection: OFObject
#ifdef OF_HAVE_OPTONAL_PROTOCOLS
    <OFXMLParserDelegate, OFXMLElementBuilderDelegate>
#endif
{
	OFTCPSocket *sock;
	OFXMLParser *parser;
	OFXMLElementBuilder *elementBuilder;
	OFString *username, *password, *server, *resource;
	XMPPJID *JID;
	uint16_t port;
	id <XMPPConnectionDelegate, OFObject> delegate;
	XMPPAuthenticator *authModule;
	BOOL needsSession;
	unsigned int lastID;








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 */
@interface XMPPConnection: OFObject
#ifdef OF_HAVE_OPTONAL_PROTOCOLS
    <OFXMLParserDelegate, OFXMLElementBuilderDelegate>
#endif
{
	OFTCPSocket *sock;
	OFXMLParser *parser, *oldParser;
	OFXMLElementBuilder *elementBuilder, *oldElementBuilder;
	OFString *username, *password, *server, *resource;
	XMPPJID *JID;
	uint16_t port;
	id <XMPPConnectionDelegate, OFObject> delegate;
	XMPPAuthenticator *authModule;
	BOOL needsSession;
	unsigned int lastID;
︙︙

Modified src/XMPPConnection.m from [9e2fd410e9] to [c97c429eb9].

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- init
{
	self = [super init];

	@try {
		sock = [[OFTCPSocket alloc] init];
		parser = [[OFXMLParser alloc] init];
		elementBuilder = [[OFXMLElementBuilder alloc] init];

		port = 5222;

		[parser setDelegate: self];
		[elementBuilder setDelegate: self];

		roster = [[XMPPRoster alloc] initWithConnection: self];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}








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- init
{
	self = [super init];

	@try {
		sock = [[OFTCPSocket alloc] init];



		port = 5222;





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

	return self;
}
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{
	if (length < 1 && [delegate respondsToSelector:
	    @selector(connectionWasClosed:)])
		[delegate connectionWasClosed: self];

	[parser parseBuffer: buffer
		 withLength: length];










}

- (OFTCPSocket*)socket
{
	return [[sock retain] autorelease];
}









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{
	if (length < 1 && [delegate respondsToSelector:
	    @selector(connectionWasClosed:)])
		[delegate connectionWasClosed: self];

	[parser parseBuffer: buffer
		 withLength: length];

	if (oldParser != nil) {
		[oldParser release];
		oldParser = nil;
	}

	if (oldElementBuilder != nil) {
		[oldElementBuilder release];
		oldElementBuilder = nil;
	}
}

- (OFTCPSocket*)socket
{
	return [[sock retain] autorelease];
}
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	return [OFString stringWithFormat: @"objxmpp_%u", lastID++];
}

-    (void)parser: (OFXMLParser*)p
  didStartElement: (OFString*)name
       withPrefix: (OFString*)prefix
	namespace: (OFString*)ns
       attributes: (OFArray*)attrs
{
	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
	OFEnumerator *enumerator;
	OFXMLAttribute *attr;

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

	enumerator = [attrs objectEnumerator];
	while ((attr = [enumerator nextObject]) != nil) {
		if ([[attr name] isEqual: @"from"] &&
		    ![[attr stringValue] isEqual: server]) {
			of_log(@"Got invalid from in stream start!");
			assert(0);
		}
	}

	[parser setDelegate: elementBuilder];

	[pool release];
}

-    (void)parser: (OFXMLParser*)p
    didEndElement: (OFString*)name
       withPrefix: (OFString*)prefix
	namespace: (OFString*)ns
       attributes: (OFArray*)attrs
{
	if (![name isEqual: @"stream"] || ![prefix isEqual: @"stream"] ||
	    ![ns isEqual: XMPP_NS_STREAM]) {
		of_log(@"Did not get expected stream end!");
		assert(0);
	}
}

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

	[element setDefaultNamespace: XMPP_NS_CLIENT];
	[element setPrefix: @"stream"
	      forNamespace: XMPP_NS_STREAM];

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

	if ([[element namespace] isEqual: XMPP_NS_CLIENT])
		[self XMPP_handleStanza: element];

	if ([[element namespace] isEqual: XMPP_NS_STREAM])
		[self XMPP_handleStream: element];

	if ([[element namespace] isEqual: XMPP_NS_STARTTLS])
		[self XMPP_handleTLS: element];

	if ([[element namespace] isEqual: XMPP_NS_SASL])
		[self XMPP_handleSASL: element];

	[pool release];
}

- (void)XMPP_startStream
{





















	[sock writeFormat: @"<?xml version='1.0'?>\n"
			   @"<stream:stream to='%@' "
			   @"xmlns='" XMPP_NS_CLIENT @"' "
			   @"xmlns:stream='" XMPP_NS_STREAM @"' "
			   @"version='1.0'>", server];
}









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	return [OFString stringWithFormat: @"objxmpp_%u", lastID++];
}

-    (void)parser: (OFXMLParser*)p
  didStartElement: (OFString*)name
       withPrefix: (OFString*)prefix
	namespace: (OFString*)ns
       attributes: (OFArray*)attributes
{

	OFEnumerator *enumerator;
	OFXMLAttribute *attribute;

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

	enumerator = [attributes objectEnumerator];
	while ((attribute = [enumerator nextObject]) != nil) {
		if ([[attribute name] isEqual: @"from"] &&
		    ![[attribute stringValue] isEqual: server]) {
			of_log(@"Got invalid from in stream start!");
			assert(0);
		}
	}

	[parser setDelegate: elementBuilder];


}

-    (void)parser: (OFXMLParser*)p
    didEndElement: (OFString*)name
       withPrefix: (OFString*)prefix
	namespace: (OFString*)ns
       attributes: (OFArray*)attrs
{
	if (![name isEqual: @"stream"] || ![prefix isEqual: @"stream"] ||
	    ![ns isEqual: XMPP_NS_STREAM]) {
		of_log(@"Did not get expected stream end!");
		assert(0);
	}
}

- (void)elementBuilder: (OFXMLElementBuilder*)builder
       didBuildElement: (OFXMLElement*)element
{


	[element setDefaultNamespace: XMPP_NS_CLIENT];
	[element setPrefix: @"stream"
	      forNamespace: XMPP_NS_STREAM];

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

	if ([[element namespace] isEqual: XMPP_NS_CLIENT])
		[self XMPP_handleStanza: element];

	if ([[element namespace] isEqual: XMPP_NS_STREAM])
		[self XMPP_handleStream: element];

	if ([[element namespace] isEqual: XMPP_NS_STARTTLS])
		[self XMPP_handleTLS: element];

	if ([[element namespace] isEqual: XMPP_NS_SASL])
		[self XMPP_handleSASL: element];


}

- (void)XMPP_startStream
{
	/* Make sure we don't get any old events */
	[parser setDelegate: nil];
	[elementBuilder setDelegate: nil];

	/*
	 * We can't release them now, as we are currently inside them. Release
	 * them the next time the parser returns.
	 */
	oldParser = parser;
	oldElementBuilder = elementBuilder;

	[roster release];

	parser = [[OFXMLParser alloc] init];
	[parser setDelegate: self];

	elementBuilder = [[OFXMLElementBuilder alloc] init];
	[elementBuilder setDelegate: self];

	roster = [[XMPPRoster alloc] initWithConnection: self];

	[sock writeFormat: @"<?xml version='1.0'?>\n"
			   @"<stream:stream to='%@' "
			   @"xmlns='" XMPP_NS_CLIENT @"' "
			   @"xmlns:stream='" XMPP_NS_STREAM @"' "
			   @"version='1.0'>", server];
}
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		sock = newSock;

		if ([delegate respondsToSelector:
		    @selector(connectionDidUpgradeToTLS:)])
			[delegate connectionDidUpgradeToTLS: self];

		/* Stream restart */
		[parser setDelegate: self];
		[self XMPP_startStream];

		return;
	}

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









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		sock = newSock;

		if ([delegate respondsToSelector:
		    @selector(connectionDidUpgradeToTLS:)])
			[delegate connectionDidUpgradeToTLS: self];

		/* Stream restart */

		[self XMPP_startStream];

		return;
	}

	if ([[element name] isEqual: @"failure"])
		/* TODO: Find/create an exception to throw here */
		@throw [OFException newWithClass: isa];
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		    dataArrayWithBase64EncodedString: [element stringValue]]];

		if ([delegate respondsToSelector:
		    @selector(connectionWasAuthenticated:)])
			[delegate connectionWasAuthenticated: self];

		/* Stream restart */
		[parser setDelegate: self];
		[self XMPP_startStream];

		return;
	}

	if ([[element name] isEqual: @"failure"]) {
		of_log(@"Auth failed!");
		// FIXME: Do more parsing/handling
		@throw [XMPPAuthFailedException








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		    dataArrayWithBase64EncodedString: [element stringValue]]];

		if ([delegate respondsToSelector:
		    @selector(connectionWasAuthenticated:)])
			[delegate connectionWasAuthenticated: self];

		/* Stream restart */

		[self XMPP_startStream];

		return;
	}

	if ([[element name] isEqual: @"failure"]) {
		of_log(@"Auth failed!");
		// FIXME: Do more parsing/handling
		@throw [XMPPAuthFailedException
︙︙

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