cocoa http upload

gistfile1.m

NSString *filename = @"myfile.png";

     NSString *boundary = @"----BOUNDARY_IS_I";

     NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@SERVER_POSTIMAGE_PATH_STR, [[UIDevice currentDevice] uniqueIdentifier] ]];

     NSMutableURLRequest *req = [NSMutableURLRequest requestWithURL:url];

     [req setHTTPMethod:@"POST"];

     NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@", boundary];

     [req setValue:contentType forHTTPHeaderField:@"Content-type"];

     NSData *imageData = UIImagePNGRepresentation(anImage);
     
// adding the body
     NSMutableData *postBody = [NSMutableData data];


// first parameter an image
     [postBody appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
     [postBody appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"upload\"; filename=\"%@\"\r\n", filename] dataUsingEncoding:NSUTF8StringEncoding]];
     [postBody appendData:[@"Content-Type: image/png\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
     [postBody appendData:imageData];

// second parameter information
     [postBody appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
     [postBody appendData:[@"Content-Disposition: form-data; name=\"some_other_name\"\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
     [postBody appendData:[@"some_other_value" dataUsingEncoding:NSUTF8StringEncoding]];
     [postBody appendData:[[NSString stringWithFormat:@"\r\n--%@--\r \n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];

     [req setHTTPBody:postBody];

     NSURLResponse* response;
     NSError* error;
     NSData* result = [NSURLConnection sendSynchronousRequest:req returningResponse:&response error:&error];
     NSString * rsltStr =  [[[NSString alloc] initWithData:result encoding:NSUTF8StringEncoding] autorelease];