CampaignListController.m

#import "CampaignList.h"
#import "VertsterClient.h"


@implementation CampaignList
	
@synthesize campaigns;

- (id)init {
	if (self = [super init]) {
		VertsterClient *client = 
			[[VertsterClient alloc] initWithUsername:@"xxx" 
			 andApiKey:@"xxx"];
                [client setDelegate: self];
		[client connectWithUrlString:@"http://api.vertster.com/campaigns.xml"];
	}
	
	return self;
}

- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
	NSLog(@"Delegation");
}


- (void)dealloc {
	[campaigns release];
	
	[super dealloc];
}

@end

VertsterClient.m

#import "VertsterClient.h"

@implementation VertsterClient


@synthesize apiKey;
@synthesize apiUrlString;
@synthesize responseBody;
@synthesize username;


# pragma mark VertsterClient Instance Methods

- (id)initWithUsername:(NSString *)user andApiKey:(NSString *)key {
	if (self = [super init]) {	
		self.username = user;
		self.apiKey = key;
	}
	
	return self;
}

- (void)connectWithUrlString:(NSString *)theUrlString {
	NSURL *url = [[NSURL URLWithString:theUrlString] retain];
	urlRequest = [NSMutableURLRequest requestWithURL:url];
	
	[[NSURLConnection alloc] initWithRequest:urlRequest delegate:self];
}

# pragma mark NSURLConnection Methods

- (NSURLRequest *)connection:(NSURLConnection *)connection 
  willSendRequest:(NSURLRequest *)request 
  redirectResponse:(NSURLResponse *)redirectResponse 
{
	return request;
}

- (void)connection:(NSURLConnection *)connection 
  didReceiveResponse:(NSURLResponse *)response 
{
	NSLog(@"Response recieved");
	
	[responseData setLength:0];
}

- (void)connection:(NSURLConnection *)connection 
  didFailWithError:(NSError *)error 
{
	NSLog(@"Failure: %s", [error localizedDescription]);
}

- (void)connection:(NSURLConnection *)connection
  didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge 
{
	NSLog(@"Auth request sent");
	
	NSURLCredential *credentials = 
		[[NSURLCredential alloc] 
		 initWithUser:username
		 password:apiKey
		 persistence:NSURLCredentialPersistenceNone];
	
	[[challenge sender] useCredential:credentials forAuthenticationChallenge:challenge];
	
	[credentials release];
}

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
    NSLog(@"Received data");
	
	[responseData appendData:data];
}

- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
	NSLog(@"Received %d total bytes", [responseData length]);
	
	responseBody = 
		[[NSString alloc] 
		 initWithBytes:[responseData bytes] 
		 length:[responseData length] 
		 encoding:NSUTF8StringEncoding];

	if ([delegate respondsToSelector:@selector(connectionDidFinsihLoading:)]) {
		[delegate connectionDidFinishLoading:connection];
	}
}

#pragma mark Memory Management

- (void)dealloc {
	[apiKey release];
	[apiUrlString release];
	[urlRequest release];
	[responseBody release];
	[responseData release];
	[username release];
	
	[super dealloc];
}


@end