Question

I’m using the TwitterRequest API for the iPhone and I would like to change something:
After posting a tweet, in the web, I can see that the tweet was sent from API.
I would like to change it.
Here’s the TwitterRequest code:
.h

@interface TwitterRequest : NSObject {
    NSString            *username;
    NSString            *password;
    NSMutableData       *receivedData;
    NSMutableURLRequest *theRequest;
    NSURLConnection     *theConnection;
    id                  delegate;
    SEL                 callback;
    SEL                 errorCallback;

    BOOL                isPost;
    NSString            *requestBody;
}

@property(nonatomic, retain) NSString      *username;
@property(nonatomic, retain) NSString      *password;
@property(nonatomic, retain) NSMutableData *receivedData;
@property(nonatomic, retain) id             delegate;
@property(nonatomic) SEL                    callback;
@property(nonatomic) SEL                    errorCallback;

-(void)friends_timeline:(id)requestDelegate requestSelector:(SEL)requestSelector;
-(void)request:(NSURL *) url;

-(void)statuses_update:(NSString *)status delegate:(id)requestDelegate requestSelector:(SEL)requestSelector;

@end

.m

#import "TwitterRequest.h"

@implementation TwitterRequest

@synthesize username;
@synthesize password;
@synthesize receivedData;
@synthesize delegate;
@synthesize callback;
@synthesize errorCallback;

-(void)friends_timeline:(id)requestDelegate requestSelector:(SEL)requestSelector{
    isPost = NO;
    // Set the delegate and selector
    self.delegate = requestDelegate;
    self.callback = requestSelector;
    // The URL of the Twitter Request we intend to send
    NSURL *url = [NSURL URLWithString:@"http://twitter.com/statuses/friends_timeline.xml"];
    [self request:url];
}

-(void)statuses_update:(NSString *)status delegate:(id)requestDelegate requestSelector:(SEL)requestSelector; {
    isPost = YES;
    // Set the delegate and selector
    self.delegate = requestDelegate;
    self.callback = requestSelector;
    // The URL of the Twitter Request we intend to send
    NSURL *url = [NSURL URLWithString:@"http://twitter.com/statuses/update.xml"];
    requestBody = [NSString stringWithFormat:@"status=%@",status];
    [self request:url];
}

-(void)request:(NSURL *) url {
    theRequest   = [[NSMutableURLRequest alloc] initWithURL:url];

    if(isPost) {
        NSLog(@"ispost");
        [theRequest setHTTPMethod:@"POST"];
        [theRequest setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
        [theRequest setHTTPBody:[requestBody dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]];
        [theRequest setValue:[NSString stringWithFormat:@"%d",[requestBody length] ] forHTTPHeaderField:@"Content-Length"];
    }

    theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];

    if (theConnection) {
        // Create the NSMutableData that will hold
        // the received data
        // receivedData is declared as a method instance elsewhere
        receivedData=[[NSMutableData data] retain];
    } else {
        // inform the user that the download could not be made
    }
}

- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge {
    //NSLog(@"challenged %@",[challenge proposedCredential] );

    if ([challenge previousFailureCount] == 0) {
        NSURLCredential *newCredential;
        newCredential=[NSURLCredential credentialWithUser:[self username]
                                                 password:[self password]
                                              persistence:NSURLCredentialPersistenceNone];
        [[challenge sender] useCredential:newCredential
               forAuthenticationChallenge:challenge];
    } else {
        [[challenge sender] cancelAuthenticationChallenge:challenge];
        // inform the user that the user name and password
        // in the preferences are incorrect
        NSLog(@"Invalid Username or Password");
    }

}

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
    // this method is called when the server has determined that it
    // has enough information to create the NSURLResponse

    // it can be called multiple times, for example in the case of a
    // redirect, so each time we reset the data.
    // receivedData is declared as a method instance elsewhere
    [receivedData setLength:0];
}

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
    //NSLog([[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]);
    // append the new data to the receivedData
    // receivedData is declared as a method instance elsewhere
    [receivedData appendData:data];
}

- (void)connection:(NSURLConnection *)connection
  didFailWithError:(NSError *)error
{
    // release the connection, and the data object
    [connection release];
    // receivedData is declared as a method instance elsewhere
    [receivedData release];

    [theRequest release];

    // inform the user
    NSLog(@"Connection failed! Error - %@ %@",
          [error localizedDescription],
          [[error userInfo] objectForKey:NSErrorFailingURLStringKey]);

    if(errorCallback) {
        [delegate performSelector:errorCallback withObject:error];
    }
}

- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
    // do something with the data

    if(delegate && callback) {
        if([delegate respondsToSelector:self.callback]) {
            [delegate performSelector:self.callback withObject:receivedData];
        } else {
            NSLog(@"No response from delegate");
        }
    } 

    // release the connection, and the data object
    [theConnection release];
    [receivedData release];
    [theRequest release];
}

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


@end

Thanks!

Answer 1

Actually, I recommend you stop this and look for OAuth library. Twitter will soon discontinue and block the use of normal authentication.

http://dev.twitter.com/pages/oauth_libraries#objectivec