iPhone-使用API​​向Tumblr发布图像实际上不会发布

- (IBAction)createPost {
    NSString *caption = @\"This is a test\";
    [self sendPhotoToTumblr:UIImagePNGRepresentation(foodImage.image) usingEmail:email andPassword:password withCaption:caption];
    [self dismissModalViewControllerAnimated:YES];
}

- (BOOL)sendPhotoToTumblr:(NSData *)photo usingEmail:(NSString *)tumblrEmail andPassword:(NSString *)tumblrPassword withCaption:(NSString *)caption;
{
    //get image data from file
    NSData *imageData = photo;  
    //stop on error
    if (!imageData) return NO;

    //Create dictionary of post arguments
    NSArray *keys = [NSArray arrayWithObjects:@\"email\",@\"password\",@\"type\",@\"caption\",nil];
    NSArray *objects = [NSArray arrayWithObjects:
                    tumblrEmail,
                    tumblrPassword,
                    @\"photo\", caption, nil];
    NSDictionary *keysDict = [[NSDictionary alloc] initWithObjects:objects forKeys:keys];

    //create tumblr photo post
    NSURLRequest *tumblrPost = [self createTumblrRequest:keysDict withData:imageData];
    [keysDict release];     

    //send request, return YES if successful
    tumblrConnection = [[NSURLConnection alloc] initWithRequest:tumblrPost delegate:self];
    if (!tumblrConnection) {
        NSLog(@\"Failed to submit request\");
        return NO;
    } else {
        NSLog(@\"Request submitted\");
        receivedData = [[NSMutableData data] retain];
        [tumblrConnection release];
        return YES;
    }
}


- (NSURLRequest *)createTumblrRequest:(NSDictionary *)postKeys withData:(NSData *)data
{
    //create the URL POST Request to tumblr
    NSURL *tumblrURL = [NSURL URLWithString:@\"http://www.tumblr.com/api/write\"];
    NSMutableURLRequest *tumblrPost = [NSMutableURLRequest requestWithURL:tumblrURL];
    [tumblrPost setHTTPMethod:@\"POST\"];

    //Add the header info
    NSString *stringBoundary = [NSString stringWithString:@\"0xKhTmLbOuNdArY\"];
    NSString *contentType = [NSString stringWithFormat:@\"multipart/form-data; boundary=%@\",stringBoundary];
    [tumblrPost addValue:contentType forHTTPHeaderField: @\"Content-Type\"];

    //create the body
    NSMutableData *postBody = [NSMutableData data];
    [postBody appendData:[[NSString stringWithFormat:@\"--%@\\r\\n\",stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]];

    //add key values from the NSDictionary object
    NSEnumerator *keys = [postKeys keyEnumerator];
    int i;
    for (i = 0; i < [postKeys count]; i++) {
        NSString *tempKey = [keys nextObject];
        [postBody appendData:[[NSString stringWithFormat:@\"Content-Disposition: form-data; name=\\\"%@\\\"\\r\\n\\r\\n\",tempKey] dataUsingEncoding:NSUTF8StringEncoding]];
        [postBody appendData:[[NSString stringWithFormat:@\"%@\",[postKeys objectForKey:tempKey]] dataUsingEncoding:NSUTF8StringEncoding]];
        [postBody appendData:[[NSString stringWithFormat:@\"\\r\\n--%@\\r\\n\",stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]];
    }

    //add data field and file data
    [postBody appendData:[[NSString stringWithString:@\"Content-Disposition: form-data; name=\\\"data\\\"\\r\\n\"] dataUsingEncoding:NSUTF8StringEncoding]];
    [postBody appendData:[[NSString stringWithString:@\"Content-Type: application/octet-stream\\r\\n\\r\\n\"] dataUsingEncoding:NSUTF8StringEncoding]];
    [postBody appendData:[NSData dataWithData:data]];
    [postBody appendData:[[NSString stringWithFormat:@\"\\r\\n--%@--\\r\\n\",stringBoundary] dataUsingEncoding:NSUTF8StringEncoding]];

    //add the body to the post
    [tumblrPost setHTTPBody:postBody];

    return tumblrPost;
}