Upload File to FTP Server on iPhone - iphone

Question

I would like to implement logic that uploads file to FTP Server.
I am new in iPhone development, so want to figure out preferred approach. After browsing available API for this task I have managed to find only code that uses CFNetwork (that looks like not Objective C based).
There is also URL Loading System that uses NSURL etc which are Objective C based.
So, my question: Is it possible to use URL Loading System to implement file upload to FTP Server?
Thanks.

Answer 1

I use a PHP Page to post a file to and have PHP handle the uploading....
This code is used to upload a photo, but it can be adapted to work with any file.
PHP Code:
<?php
$uploaddir = 'photos/';
$file = basename($_FILES['userfile']['name']);
$uploadfile = $uploaddir . $file;
if (move_uploaded_file($_FILES['userfile']['tmp_name'], $uploadfile)) {
echo "OK";
} else {
echo "ERROR";
}
?>
iPhone Code:
- (BOOL)uploadImage:(NSData *)imageData filename:(NSString *)filename{
NSString *urlString = #"http://www.yourdomainName.com/yourPHPPage.php";
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:#"POST"];
NSString *boundary = [NSString stringWithString:#"---------------------------14737809831466499882746641449"];
NSString *contentType = [NSString stringWithFormat:#"multipart/form-data; boundary=%#",boundary];
[request addValue:contentType forHTTPHeaderField: #"Content-Type"];
NSMutableData *body = [NSMutableData data];
[body appendData:[[NSString stringWithFormat:#"\r\n--%#\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithString:[NSString stringWithFormat:#"Content-Disposition: form-data; name=\"userfile\"; filename=\"%#\"\r\n",filename]] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithString:#"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[NSData dataWithData:imageData]];
[body appendData:[[NSString stringWithFormat:#"\r\n--%#--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[request setHTTPBody:body];
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
NSString *returnString = [[[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding] autorelease];
return ([returnString isEqualToString:#"OK"]);
}
Method Call:
[self uploadImage:UIImageJPEGRepresentation(imageView.image, 1.0) filename:imageName];