upload image swift through php to server - php

Question

I followed a tutorial online to upload image to server from swift. I used his sample interface and everything looks fine except I'm getting error "Message":"Sorry, there was an error uploading your file.","Status":Error,"userId":"9". My codes are
<?php
$firstName = $_POST["firstName"];
$lastName = $_POST["lastName"];
$userId = $_POST["userId"];
$target_dir = "percyteng.com/orbit/ios/image";if(!file_exists($target_dir))
{
mkdir($target_dir, 0777, true);
}
$target_dir = $target_dir . "/" . $_FILES["file"]["name"];
echo json_encode( $target_dir);
if (move_uploaded_file($_FILES["file"]["tmp_name"], $target_dir)) {
echo json_encode([
"Message" => "The file ". basename( $_FILES["file"]["name"]). " has been uploaded.",
"Status" => "OK",
"userId" => $_REQUEST["userId"]
]);
} else {
echo json_encode([
"Message" => "Sorry, there was an error uploading your file.",
"Status" => "Error",
"userId" => $_REQUEST["userId"]
]);
}
?>
I have checked and the parameters did get passed from swift.
Here is my code in swift.
import UIKit
class ViewController: UIViewController, UIPickerViewDelegate, UIImagePickerControllerDelegate, UINavigationControllerDelegate{
#IBOutlet weak var image: UIImageView!
#IBOutlet weak var myActivityIndicator: UIActivityIndicatorView!
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
self.view.endEditing(true)
}
#IBAction func selectImage(sender: AnyObject) {
let ImagePicker = UIImagePickerController()
ImagePicker.delegate = self
ImagePicker.sourceType = UIImagePickerControllerSourceType.PhotoLibrary
self.presentViewController(ImagePicker, animated: true, completion: nil)
}
func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]) {
image.image = info[UIImagePickerControllerOriginalImage] as? UIImage
self.dismissViewControllerAnimated(true, completion: nil)
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
#IBAction func Upload(sender: AnyObject) {
myImageUploadRequest()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func myImageUploadRequest()
{
let myUrl = NSURL(string: "http://www.percyteng.com/orbit/ios/try.php");
//let myUrl = NSURL(string: "http://www.boredwear.com/utils/postImage.php");
let request = NSMutableURLRequest(URL:myUrl!);
request.HTTPMethod = "POST";
let param = [
"firstName" : "Sergey",
"lastName" : "Kargopolov",
"userId" : "9"
]
let boundary = generateBoundaryString()
request.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")
let imageData = UIImageJPEGRepresentation(image.image!, 1)
if(imageData==nil) { return; }
request.HTTPBody = createBodyWithParameters(param, filePathKey: "file", imageDataKey: imageData!, boundary: boundary)
let task = NSURLSession.sharedSession().dataTaskWithRequest(request) {
data, response, error in
if error != nil {
print("error=\(error)")
return
}
// You can print out response object
print("******* response = \(response)")
// Print out reponse body
let responseString = NSString(data: data!, encoding: NSUTF8StringEncoding)
print("****** response data = \(responseString!)")
do {
if let jsonResult = try NSJSONSerialization.JSONObjectWithData(data!, options: []) as? NSDictionary {
print(jsonResult)
}
} catch let error as NSError {
print(error.localizedDescription)
}
dispatch_async(dispatch_get_main_queue(),{
// self.myActivityIndicator.stopAnimating()
self.image.image = nil;
});
/*
if let parseJSON = json {
var firstNameValue = parseJSON["firstName"] as? String
println("firstNameValue: \(firstNameValue)")
}
*/
}
task.resume()
}
func createBodyWithParameters(parameters: [String: String]?, filePathKey: String?, imageDataKey: NSData, boundary: String) -> NSData {
var body = NSMutableData();
if parameters != nil {
for (key, value) in parameters! {
body.appendString("--\(boundary)\r\n")
body.appendString("Content-Disposition: form-data; name=\"\(key)\"\r\n\r\n")
body.appendString("\(value)\r\n")
}
}
let filename = "user-profile.jpg"
let mimetype = "image/jpg"
body.appendString("--\(boundary)\r\n")
body.appendString("Content-Disposition: form-data; name=\"\(filePathKey!)\"; filename=\"\(filename)\"\r\n")
body.appendString("Content-Type: \(mimetype)\r\n\r\n")
body.appendData(imageDataKey)
body.appendString("\r\n")
body.appendString("--\(boundary)--\r\n")
return body
}
func generateBoundaryString() -> String {
return "Boundary-\(NSUUID().UUIDString)"
}
}
extension NSMutableData {
func appendString(string: String) {
let data = string.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: true)
appendData(data!)
}
}

Answer 1

Your iOS code works for me if I use move_uploaded_file() in the php script to move the image from the tempfile path to an existing dir on my server, so that I don't run into problems creating the dir (I also commented out the json conversion of the response). Therefore, the boundaries in the body of the request were all created correctly.
I suspect move_uploaded_file() is failing because of a directory problem. Try something like this:
if(!file_exists($target_dir))
{
mkdir($target_dir, 0777, true) or exit("Couldn't create $target_dir!");
}