Add a class for handling JIDs.

src/XMPPJID.m

@@ -0,0 +1,127 @@
+#include <assert.h>
+#include <stringprep.h>
+#import "XMPPJID.h"
+
+@implementation XMPPJID
+@synthesize node;
+@synthesize domain;
+@synthesize resource;
+
++ JID
+{
+	return [[[self alloc] init] autorelease];
+}
+
++ JIDWithString: (OFString*)str
+{
+	return [[[self alloc] initWithString: str] autorelease];
+}
+
+- initWithString: (OFString*)str
+{
+	self = [super init];
+
+	size_t nodesep, resourcesep;
+	nodesep = [str indexOfFirstOccurrenceOfString: @"@"];
+	resourcesep = [str indexOfFirstOccurrenceOfString: @"/"];
+
+	if (nodesep == -1)
+		[self setNode: @""];
+	else
+		[self setNode: [str substringFromIndex: 0
+					       toIndex: nodesep]];
+
+	if (resourcesep == -1) {
+		[self setResource: @""];
+		resourcesep = [str length];
+	} else
+		[self setResource: [str substringFromIndex: resourcesep + 1
+						 toIndex: [str length]]];
+
+	[self setDomain: [str substringFromIndex: nodesep + 1
+					 toIndex: resourcesep]];
+
+	return self;
+}
+
+- (void)setNode: (OFString*)node_
+{
+	OFString *old = node;
+	char *nodepart;
+
+	Stringprep_rc rc;
+	if ((rc = stringprep_profile([node_ cString], &nodepart, "Nodeprep", 0))
+			!= STRINGPREP_OK) {
+		of_log(@"Nodeprep failed: %s", stringprep_strerror(rc));
+		assert(0);
+	}
+
+	@try {
+		node = [[OFString alloc] initWithCString: nodepart];
+	} @finally {
+		free(nodepart);
+	}
+
+	[old release];
+}
+
+- (void)setDomain: (OFString*)domain_
+{
+	OFString *old = domain;
+	char *srv;
+
+	Stringprep_rc rc;
+	if ((rc = stringprep_profile([domain_ cString], &srv, "Nameprep", 0))
+			!= STRINGPREP_OK) {
+		of_log(@"Nameprep failed: %s", stringprep_strerror(rc));
+		assert(0);
+	}
+
+	@try {
+		domain = [[OFString alloc] initWithCString: srv];
+	} @finally {
+		free(srv);
+	}
+
+	[old release];
+}
+
+- (void)setResource: (OFString*)resource_
+{
+	OFString *old = resource;
+	char *res;
+
+	Stringprep_rc rc;
+	if ((rc = stringprep_profile([resource_ cString], &res,
+				"Resourceprep", 0)) != STRINGPREP_OK) {
+		of_log(@"Resourceprep failed: %s", stringprep_strerror(rc));
+		assert(0);
+	}
+
+	@try {
+		resource = [[OFString alloc] initWithCString: res];
+	} @finally {
+		free(res);
+	}
+
+	[old release];
+}
+
+- (OFString*)bareJID
+{
+	if ([node length])
+		return [OFString stringWithFormat: @"%@@%@", node, domain];
+	else
+		return [OFString stringWithFormat: @"%@", domain];
+}
+
+- (OFString*)fullJID
+{
+	if ([node length])
+		return [OFString stringWithFormat: @"%@@%@/%@",
+		       node, domain, resource];
+	else
+		return [OFString stringWithFormat: @"%@/%@",
+		       domain, resource];
+}
+@end