Загрузить многокомпонентное изображение на сервер PHP из приложения iOS

Question

Загрузить многокомпонентное изображение на сервер PHP из приложения iOS

Я пытаюсь загрузить изображение с помощью моего приложения для iOS (Swift 2.0). Сервер получает запрос и отправляет статус 200, но когда дело доходит до загрузки файла, данные изображения не загружаются. print_r($_FILES); Команда дает мне ответ:

Array
(
)
wrong format for image

Это код:

func send()
{

let request = NSMutableURLRequest(URL: NSURL(string: "***URL to upload.php***")!)

request.HTTPMethod = "POST"let postString = "username=\(globalUsr)&photo-name=\(globalImage.description)&photo-description=\(message.text)"
let myData : NSData! = postString.dataUsingEncoding(NSUTF8StringEncoding)

let imageData :NSData = UIImageJPEGRepresentation(globalImage, 1.0)!;

let boundary = "-----SwiftBoundary-----"let contentType = "multipart/form-data; boundary=\(boundary)"let body = NSMutableData();

let tempData = NSMutableData()
let fileName = "\(globalImage.description).jpg"let parameterName = "contest-photo"
tempData.appendData(myData)
tempData.appendData("--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
let fileNameContentDisposition = "name=\(parameterName)"let contentDisposition = "Content-Disposition: form-data; name=\"\(fileName)\"; \(fileNameContentDisposition)\r\n"tempData.appendData(contentDisposition.dataUsingEncoding(NSUTF8StringEncoding)!)
tempData.appendData("Content-Type: \(contentType)\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
tempData.appendData(imageData)
tempData.appendData("\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)


body.appendData(tempData)

body.appendData("\r\n--\(boundary)--\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)

request.setValue("\(body.length)", forHTTPHeaderField: "Content-Length")
request.HTTPBody = body


let task = NSURLSession.sharedSession().dataTaskWithRequest(request) {
data, response, error in

if error != nil {
print("error=\(error)")
return
}

let responseString = NSString(data: data!, encoding: NSUTF8StringEncoding)
print("responseString = \(responseString!)")
}
task.resume()


}

Код PHP:

<?php

// Load WordPress
define('WP_USE_THEMES', false);
require_once("../../../../../wp-load.php");

$username = $_POST["username"];

$m = contest_upload_photo('contest-upload-photo','contest_upload_photo',username_exists($username ));




function contest_upload_photo($atts, $content = null,$user_ID=null) {

//Important variables
if ($user_ID == null){
die(json_encode("There is no user."));
}

$html = '';//Inciate output string
$koncovky = array('jpg', 'jpeg', 'png', 'gif');

$number_images = get_user_meta($user_ID, 'contest_user_images', true);
if(empty($number_images)){$number_images=0;}


$error = array();
// Do some minor form validation to make sure there is content

$name = trim($_POST['photo-name']);
/*if (empty($_POST['photo-title'])){
$error['title'] = __('Please enter the photo title','photo-contest');
} else {
$title = trim($_POST['photo-title']);
}*/


//Check photo
if ($_FILES['contest-photo']['error'] == UPLOAD_ERR_NO_FILE){
$error['photo'] = __('Please select the image','photo-contest');
die("no photo selected");
} else {

//Control upload and extension
if ($_FILES['contest-photo']['error']) {
$error['upload_error'] = __('Error image upload.','photo-contest');
die("Image upload error");
}
elseif (!in_array(strtolower(pathinfo($_FILES['contest-photo']['name'], PATHINFO_EXTENSION)), $koncovky)) {
$error['extension_error'] = __('Image must be jpg, png or gif.','photo-contest');
print($koncovky);
print_r($_FILES);
die("wrong format for image");
}
elseif (!($imagesize = getimagesize($_FILES['contest-photo']['tmp_name'])) || $imagesize[2] > 3) {
$error['type_error'] = __('Image type must be jpg, png or gif.','photo-contest');
die("image too big");
}
else {

@$img=getimagesize($_FILES['contest-photo']['tmp_name']);

$minimum = array('width' => '400', 'height' => '400');
$width= $img[0];
$height =$img[1];
if ($width < $minimum['width'] ){
$error['type_error'] = __('Minimum image width is 400px.','photo-contest');
die("width is too small");
}
elseif ($height <  $minimum['height']){
$error['type_error'] = __('Minimum image height is 400px.','photo-contest');
die("height is too small");
}
$photo_limit = get_option( 'pcplugin-photo-limit', true );
$size_maxi = $photo_limit;
$size = filesize($_FILES['contest-photo']['tmp_name']);
if($size>$size_maxi){
$error['size_error'] = __('File size is above allowed limitations!','photo-contest');
die("file is too big");
}
}


}


if(empty($error)){
//If no exist error - create attachment post
if(empty($_POST['photo-description'])){
$description = sanitize_text_field($_POST['photo-description']);
}else{
$description = '';
}

@$wp_filetype = wp_check_filetype(basename($_FILES['contest-photo']['name']), null );
@$wp_upload_dir = wp_upload_dir();
$attachment = array(
'guid' => $wp_upload_dir['url'] . '/' . basename( $_FILES['contest-photo']['name'] ),
'post_mime_type' => $wp_filetype['type'],
'post_title' => $name,
'post_content' => $description,
'post_status' => 'inherit'
);

require_once(ABSPATH . 'wp-admin/includes/image.php');
require_once(ABSPATH . "wp-admin" . '/includes/file.php');
require_once(ABSPATH . "wp-admin" . '/includes/media.php');
$attach_id = media_handle_upload( 'contest-photo', 0,$attachment );

$attach_data = wp_generate_attachment_metadata( $attach_id, $wp_upload_dir['url'] . '/' . basename( $_FILES['contest-photo']['name']) );

wp_update_attachment_metadata( $attach_id, $attach_data );

update_post_meta($attach_id,'contest-active',1);
update_post_meta($attach_id,'contest-photo-points',0);
update_post_meta($attach_id,'contest-photo-author',$user_ID);
update_post_meta($attach_id,'post_author',$user_ID);

$number_images = $number_images+1;
update_user_meta($user_ID, 'contest_user_images', $number_images);


$my_post = array(
'ID'           => $attach_id,
'post_author'   => $user_ID,
);

wp_update_post( $my_post );


$image = get_post( $attach_id );

if ($attach_id==""){
die("306");
}else{
echo($attach_id);
}
if ( ! $image || 'attachment' != $image->post_type || 'image/' != substr( $image->post_mime_type, 0, 6 ) )
die( json_encode( array( 'error' => sprintf( __( 'Failed resize: %s is an invalid image ID.', 'regenerate-thumbnails' ), esc_html( $attach_id ) ) ) ) );



$fullsizepath = get_attached_file( $image->ID );

if ( false === $fullsizepath || ! file_exists( $fullsizepath ) )

// @set_time_limit( 900 ); // 5 minutes per image should be PLENTY

$metadata = wp_generate_attachment_metadata( $image->ID, $fullsizepath );

if ( is_wp_error( $metadata ) )
if ( empty( $metadata ) )
wp_update_attachment_metadata( $image->ID, $metadata );
return $attach_id;


}


}
?>

ОБНОВИТЬ:

Если я попробую это без:

request.setValue(contentType, forHTTPHeaderField: "Content-Type")

Я получил:

data =<22546865 72652069 73206e6f 20757365 722e22>
response = <NSHTTPURLResponse: 0x7fcd7e184980> { URL: http://www.clip2gether.com/mobile/app/v1/iOS/upload/upload.php } { status code: 200, headers {
"Cache-Control" = "no-store, no-cache, must-revalidate, post-check=0, pre-check=0";
Connection = close;
"Content-Type" = "text/html; charset=UTF-8";
Date = "Sun, 04 Oct 2015 20:39:26 GMT";
Expires = "Thu, 19 Nov 1981 08:52:00 GMT";
Pragma = "no-cache";
Server = "Apache/2.4.10";
"Set-Cookie" = "qtrans_cookie_test=1; path=/; domain=www.clip2gether.com";
"Transfer-Encoding" = Identity;
"X-Powered-By" = "PHP/5.6.12";
} }

И если я попробую это со строкой:

request.setValue(contentType, forHTTPHeaderField: "Content-Type")

data =<41727261 79417272 61790a28 0a290a77 726f6e67 20666f72 6d617420 666f7220 696d6167 65>
response = <NSHTTPURLResponse: 0x7fdd22f3e660> { URL: http://www.clip2gether.com/mobile/app/v1/iOS/upload/upload.php } { status code: 200, headers {
"Cache-Control" = "no-store, no-cache, must-revalidate, post-check=0, pre-check=0";
Connection = close;
"Content-Type" = "text/html; charset=UTF-8";
Date = "Sun, 04 Oct 2015 20:46:19 GMT";
Expires = "Thu, 19 Nov 1981 08:52:00 GMT";
Pragma = "no-cache";
Server = "Apache/2.4.10";
"Set-Cookie" = "qtrans_cookie_test=1; path=/; domain=www.clip2gether.com";
"Transfer-Encoding" = Identity;
"X-Powered-By" = "PHP/5.6.12";
} }

Так что в основном я получаю тот же ответ с установкой значения contentType, что и шестнадцатеричный код:

There is no user

и без настройки

ArrayArray
(
)
wrong format for image

0

ios multipartform-data php swift swift2

Решение

Другие решения

Я искал несколько часов и наконец собрал этот рабочий код, используя в основном информацию с этой страницы.

Вот как вы можете загрузить изображение вместе с текстовым параметром в скрипт PHP и сохранить изображение на сервере.

// PHP SCRIPT (the content of upload.php)
<?php
$image = $_FILES['image-upload']['tmp_name'];
$username = $_POST['username'];
$filename = "upload_" . date("ymd_at_H_i_s", time()) . ".jpg";
if (move_uploaded_file($image, $filename)) {
echo "Image upload for user ".$username." Success"; // this will show up in XCode output
} else {
echo "Image upload for user ".$username."  Failed"; // this will show up in XCode output
}
?>




// SWIFT 2.3 IMAGE UPLOAD FUNCTION
let uploadPHPURL = "http://somehost.com/uploads/upload.php"func uploadImage(image:UIImage?, userName:String)
{

dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)) {

let request = NSMutableURLRequest(URL: NSURL(string: self.uploadPHPURL)!)
request.HTTPMethod = "POST"
//let image = self.imageView.image
let imageData :NSData = UIImageJPEGRepresentation(image!, 0.3)!

let boundary = "--- unique boundary string ---"let contentType = "multipart/form-data; boundary=\(boundary)"let fileName = "image.jpg"let parameterName = "image-upload"
let body = NSMutableData()


// duplicate this if you need to send more parameters to the php script
body.appendData("--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("Content-Disposition: form-data; name=\"username\"\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("\(userName)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)



// this is the file parameter
body.appendData("--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("Content-Disposition: form-data; name=\"\(parameterName)\"; filename=\"\(fileName)\"\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("Content-Type: image/jpeg\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData(imageData)
body.appendData("\r\n--\(boundary)--".dataUsingEncoding(NSUTF8StringEncoding)!)

request.setValue(contentType, forHTTPHeaderField: "Content-Type")
request.setValue("\(body.length)", forHTTPHeaderField: "Content-Length")
request.HTTPBody = body


let task = NSURLSession.sharedSession().dataTaskWithRequest(request) {
data, response, error in

if error != nil {
print("error=\(error)")
return
}

let responseString = NSString(data: data!, encoding: NSUTF8StringEncoding)
print("imageUpload responseString: \(responseString!)")
}
task.resume()
}
}

0

Источник

Accepted Answer

Ваш body данные неправильно отформатированы для multipart/form-data ENCTYPE. Предполагая, что вы хотите разместить следующие поля:

username текстовое поле
photo-name текстовое поле
photo-description текстовое поле
contest-photo поле файла (будет содержать двоичные данные изображения)

Ваше тело должно выглядеть так:

--SwiftBoundary
Content-Disposition: form-data; name="username"
my username value
--SwiftBoundary
Content-Disposition: form-data; name="photo-name"
my photo-name value
--SwiftBoundary
Content-Disposition: form-data; name="photo-description"
my photo-description value
--SwiftBoundary
Content-Disposition: form-data; name="contest-photo"; filename="myfile.jpg"Content-Type: image/jpeg

...my image binary data...
--SwiftBoundary--

Вы также должны будете установить следующие заголовки по запросу:

Content-Length по длине тела
а также Content-Type: multipart/form-data; boundary=SwiftBoundaryтут важно что то boundary строка соответствует используемой в теле

Если вам удастся обновить ваш запрос, чтобы он выглядел как выше, вы найдете данные изображения в $_FILES['contest-photo']

Ваш send функция должна выглядеть примерно так:

func send()
{
let request = NSMutableURLRequest(URL: NSURL(string: "***URL to upload.php***")!)

request.HTTPMethod = "POST"
let imageData :NSData = UIImageJPEGRepresentation(globalImage, 1.0)!;

let boundary = "SwiftBoundary"let contentType = "multipart/form-data; boundary=\(boundary)"let fileName = "\(globalImage.description).jpg"let parameterName = "contest-photo"
let body = NSMutableData()

body.appendData("--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("Content-Disposition: form-data; name=\"username\"\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("\(globalUsr)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)

body.appendData("--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("Content-Disposition: form-data; name=\"photo-name\"\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("\(globalImage.description)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)

body.appendData("--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("Content-Disposition: form-data; name=\"photo-description\"\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("\(message.text)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)

body.appendData("--\(boundary)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("Content-Disposition: form-data; name=\"\(parameterName)\"; filename=\"\(fileName)\"\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData("Content-Type: image/jpeg\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!)
body.appendData(imageData)
body.appendData("\r\n--\(boundary)--".dataUsingEncoding(NSUTF8StringEncoding)!)

request.setValue(contentType, forHTTPHeaderField: "Content-Type")
request.setValue("\(body.length)", forHTTPHeaderField: "Content-Length")
request.HTTPBody = body


let task = NSURLSession.sharedSession().dataTaskWithRequest(request) {
data, response, error in

if error != nil {
print("error=\(error)")
return
}

let responseString = NSString(data: data!, encoding: NSUTF8StringEncoding)
print("responseString = \(responseString!)")
}
task.resume()
}

2