Fileuploader

Affiliate Programme

4.1
Any registered User is authorised to participate in ul’s Affiliate Programme. ul is entitled to design the substance of the Affiliate Programme and the remuneration models in its free discretion, and to modify such at any time with prospective effect. shall not apply in respect thereof. In particular, ul shall be entitled to restrict the validity of benefits in time and to specify a period at the end of which such benefits shall lapse. No interest shall be payable on any benefits, in particular on the ul credit account.
4.2
ul publishes the current and updated contents of its Affiliate Programme and the remuneration models at http://uploaded.net/products
4.3
The ul Affiliate Programme consists of the following remuneration models:
4.3.1
Commission credit for first-time orders: Users are included as ul Affiliate Programme participants through the storage of data by means of cookies which are transmitted to the potential User when he or she accesses ul links, and which are stored by means of browser software. This is the way in which Users are identified as Affiliate Programme participants. Thus, Users who have uploaded data and have generated the ul link on that basis shall receive commission credit for first-time orders (see ) with respect to each Premium Account successfully referred by that User provided that the non-Premium User has enabled the use of cookies (as described above) on his computer.
4.3.2
Subsequent commission: In addition, subsequent commission will be credited (see ) provided that a Premium Account User who was previously referred extends the term of his account. Subsequent commission will be counted as such if it is earned within a maximum of seven days from the date on which the premium term of the first order expires.
4.3.3
Download remuneration: A credit will be applied per download, which shall be dependent on the country and size of the download.
4.4
Limitation on commission credit: Commissions will be credited depending on the method of payment used for making payment;
4.5
Users are not permitted:
  • To procure benefits or cause ul to grant benefits under ul’s Affiliate Programme by violating applicable law or breaching these TOS, or
  • to obtain the grant of benefits under the Affiliate Programme by fraud or
  • to circumvent the terms and conditions of the Affiliate Programme.
4.6
In the event of a breach of hereof, ul is entitled to withdraw benefits which have been granted and — to the extent necessary and appropriate — to temporarily block that User’s access or to exercise extraordinary termination of its agreement with the User in cases of repeated breach and after having given a warning to no avail.

Rights to use information (including files and content)

8.1
The Uploader grants ul the right to overlay advertising (the style and content of which ul may determine in its free discretion) on the ul Platform, in particular in connection with the downloading of information (including files and content) which the Uploader has uploaded to the ul Platform. Within the meaning of this section, ‘Advertising’, in particular, includes banners, links, buttons, videos and pop-ups.
8.2
The Uploader grants ul the right to create scaled-down images (thumbnails) of files containing images and videos to enable easier use of ul’s website and to integrate such thumbnails within a search function or otherwise into ul’s Platform.
8.3
The Uploader grants ul the right to make such changes to the information (including content and files) as are necessary due to technical processing and transmission, in particular to perform transmission of the information (including content and files) via various networks and to make technical modifications in order to comply with the technical requirements of linked networks or other technical facilities.
8.4
The Uploader warrants to ul that the Uploader holds all necessary rights with respect to the uploaded information (including content and files) and, in particular, that it holds the right to store, process, publish and/or transmit the information (including content and files), whether as the copyright holder or as the holder of a right of use, and that such rights are of the scope and extent required under these TOS. The Uploader further warrants that by uploading the information (including content and files), and in particular in the associated processes of storing, processing, publishing or transmitting the information (including content and files), no third-party rights and no laws which may be applicable have been breached or violated. In the event of a breach of the foregoing warranties by the Uploader, as between the Uploader and ul, the Uploader shall indemnify and hold ul harmless against any and all liability to third parties.
8.5
In the event of a serious violation of applicable law or a serious breach of these TOS, ul is entitled to block the User’s access to ul’s Platform, to exercise extraordinary termination of the agreement with the User and to deprive the User in whole or in part of any benefits granted under the Affiliate Programme, including any credit balances.

Scope

1.1
ul renders its services exclusively on the basis of these Terms of Service («TOS»). By using the uploaded.net Platform, the User agrees to the application of these TOS.
1.2
ul hereby reserves the right to modify the substance of these TOS without the User’s consent (with prospective effect), provided that, taking account of ul’s interests, it is reasonable to the User for ul to do so. ul shall notify Users of amendments of this kind on the Platform. shall remain unaffected hereby.
1.3
The terms and conditions contained in these TOS do not create any third party beneficiary rights.
1.4
The User acknowledges that, as between ul and the User, ul is the exclusive owner of any and all rights to the products and services offered by it, including any intellectual property rights. The foregoing shall not apply to information (including files and content) uploaded by Users. The User is not authorised to make use of these rights belonging to ul without ul’s prior express written consent (e.g. to copy ul’s website in whole or in part and to use it on other websites) or to remove references to ul’s status as right holder.
1.4
Definitions:
User Any natural person using ul’s products and services.
Premium Service Fee-based premium rate service by ul offering the User special functions and options for using ul’s services.
Premium Account Fee-based access with extended functions and options in comparison to Free Accounts, and also including the right to participate in the ul Affiliate Programme.
Free Account Free access, with the right to participate in the ul Affiliate Programme.
Affiliate Programme ul shall structure the ul Affiliate Programme in its free discretion, pursuant to of these TOS.
Sponsors Owners or operators of advertisements/websites that are linked on a fee-paying basis in connection with the Affiliate Programme.
Advertising Advertising by our Sponsors can be overlaid on the ul Platform in any number of variations ().
Uploader Any User who has uploaded files to his account and published these on ul’s Platform.

Overview

In previous articles, we introduced the basics of form handling and explored the form tag library in Spring MVC.


In this article, we focus on what Spring offers for multipart (file upload) support in web applications.

Spring allows us to enable this multipart support with pluggable MultipartResolver objects. The framework provides one MultipartResolver implementation for use with Commons FileUpload and another for use with Servlet 3.0 multipart request parsing.

After configuring the MultipartResolver we’ll see how to upload a single file and multiple files.

We’ll also touch on Spring Boot.

Spring Boot File Upload

If we’re using Spring Boot, everything we’ve seen so far still applies.

However, Spring Boot makes it even easier to configure and start everything with little hassle.


In particular, it’s not necessary to configure any servlet, as Boot will register and configure it for us, provided that we include the web module in our dependencies:

We can find the latest version of on Maven Central.

If we want to control the maximum file upload size, we can edit our application.properties:

We can also control whether file uploading is enabled, and the location for file upload:

Note that we’ve used ${java.io.tmpdir} to define the upload location so that we can use the temporary location for different operating systems.

CORS

httpResp.setHeader("Access-Control-Allow-Methods","POST, PUT, OPTIONS");httpResp.setHeader("Access-Control-Allow-Origin","your.other.server.com");httpResp.setHeader("Access-Control-Allow-Headers","Content-Type"));
<cross-domain-policy><site-controlpermitted-cross-domain-policies="all"/><allow-access-fromdomain="angular-file-upload.appspot.com"/><allow-http-request-headers-fromdomain="*"headers="*"secure="false"/></cross-domain-policy>
Upload.upload({    url'https://angular-file-upload.s3.amazonaws.com/',    method'POST',    data{        keyfile.name,        AWSAccessKeyId<YOURAWS AccessKey Id>,        acl'private',        policy$scope.policy,        signature$scope.signature,"Content-Type"file.type!=''?file.type'application/octet-stream',        filenamefile.name,        file file}});
{"expiration""2020-01-01T00:00:00Z","conditions"{"bucket""angular-file-upload"},"starts-with","$key","",{"acl""private"},"starts-with","$Content-Type","","starts-with","$filename","","content-length-range",,524288000}

Make sure that you provide upload and CORS post to your bucket at AWS -> S3 -> bucket name -> Properties -> Edit bucket policy and Edit CORS Configuration. Samples of these two files:

{"Version""2012-10-17","Statement"{"Sid""UploadFile","Effect""Allow","Principal"{"AWS""arn:aws:iam::xxxx:user/xxx"},"Action""s3:GetObject","s3:PutObject","Resource""arn:aws:s3:::angular-file-upload/*"},{"Sid""crossdomainAccess","Effect""Allow","Principal""*","Action""s3:GetObject","Resource""arn:aws:s3:::angular-file-upload/crossdomain.xml"}}
<?xml version="1.0" encoding="UTF-8"?><CORSConfigurationxmlns="http://s3.amazonaws.com/doc/2006-03-01/"><CORSRule><AllowedOrigin>http://angular-file-upload.appspot.com</AllowedOrigin><AllowedMethod>POST</AllowedMethod><AllowedMethod>GET</AllowedMethod><AllowedMethod>HEAD</AllowedMethod><MaxAgeSeconds>3000</MaxAgeSeconds><AllowedHeader>*</AllowedHeader></CORSRule></CORSConfiguration>

Modes of payment

5.1
Application for payment
5.1.1
The assertion of a claim for payment is predicated on the User’s submission of an application for payment to ul, containing such details as are necessary to enable ul to review the fulfilment of prerequisites of the payment and to facilitate the payment.
5.1.2
ul is entitled to determine in its free discretion how payment shall be effected. In particular ul is entitled to stipulate that payment shall be made by specified methods of payment. The User shall notify ul in his or her application for payment which of the payment methods offered by ul he or she is selecting.
5.1.3
The User is only entitled to submit an application for payment where the User has accumulated a minimum credit balance. The amount of the minimum credit balance is governed by the payment method selected by the User in his or her application for payment.
5.1.4
ul shall commence its provision of the contract services immediately after the parties’ contract is concluded. The User shall have no claim whatsoever for a refund of any fees. All orders shall be deemed final. If you are unsatisfied, please contact our customer support with respect to compensation.
5.2
Payment
5.2.1
ul shall immediately review the User’s application for payment. ul’s review shall also include a review of the User’s compliance with ul’s TOS. ul shall prepare a statement of account for each application for payment submitted by a registered User. Where, following ul’s review, ul determines that there are no obstacles to payment, ul shall timely pay the amount determined upon completion of its review (where possible within 30 business days) by such method of payment as the User has selected.
5.2.2
Where the User so requests and it is necessary for tax reasons, ul shall generate a receipt which comports with the requirements of tax law for each payment to the User.

Features

  • file upload progress, cancel/abort
  • file drag and drop (html5 only)
  • image paste from clipboard and drag and drop from browser pages (html5 only).
  • orientation fix for jpeg image files with exif orientation data
  • resumable uploads: pause/resume upload (html5 only)
  • native validation support for file type/size, image width/height/aspect ratio, video/audio duration, and with pluggable custom sync or async validations.
  • show thumbnail or preview of selected images/audio/videos
  • supports CORS and direct upload of file’s binary data using
  • plenty of sample server side code, available on nuget
  • HTML5 FileReader.readAsDataURL shim for IE8-9

Client-side image resize

It is common that you don’t want hi-res original images uploaded to your Uploadcare account. Doing so is inefficient on both ends:

  • Sending large images over mobile networks can be expensive for your users.
  • Large images take up your account storage limit and delivering those increase your traffic.

To handle the issue, Uploadcare File Uploader implements client-side image optimization via the .

The option is passed into your file uploader as a string holding your preferred resolution and, optionally, a JPEG quality of the resulting image. The preferred resolution you provide does not affect original image aspect ratio.

Image Shrink outputs to:

  • JPEG in case an input image has no transparency.
  • PNG in case an input image includes transparent pixels.

Here are some examples of values you can specify for to control the feature:

  • , shrinks images to 0.48 megapixels with the default JPEG quality of 80%.
  • , shrinks images to 2.5 megapixels with the JPEG quality set to 95%.

The resolution you set for optimized images should not exceed 5 megapixels. All EXIF info from your original images will be copied to the resized ones. The copied EXIF info includes image orientation, camera model, geolocation, and settings.


Input images will not be optimized in the following cases:

  • When a client browser does not support all the required APIs.
  • When images are uploaded from .
  • If the ratio falls behind . For example, you can not shrink a 2560x1560px (4 MP) image to 1600x1600px (2.5 MP) while this works with a 2448x3264px (8 MP) original. The reason we implemented this limit is to preserve an optimal balance between a decline in quality and drop in file size.

Простая загрузка файла

Загрузка одного файла

Класс

class UploadFileForm extends Model
{
  /**
   * @var UploadedFile
   */
  public $file;

  public function rules()
  {
    return ,
        'checkExtensionByMimeType' => true,
        'maxSize' => 512000, // 500 килобайт = 500 * 1024 байта = 512 000 байт
        'tooBig' => 'Limit is 500KB'
      ],
    ];
  }

  public function upload()
  {
    if ($this->validate()) {
      $dir = 'uploads/'; // Директория - должна быть создана
      $name = $this->randomFileName($this->file->extension);
      $file = $dir . $name;
      $this->file->saveAs($file); // Сохраняем файл
      return true;
    } else {
      return false;
    }
  }

  private function randomFileName($extension = false)
  {
    $extension = $extension ? '.' . $extension : '';
    do {
      $name = md5(microtime() . rand(0, 1000));
      $file = $name . $extension;
    } while (file_exists($file));
    return $file;
  }
}

Представление:

<?php
/* @var $this yii\web\View */
/* @var $model \frontend\forms\UploadFileForm */
use yii\widgets\ActiveForm;
?>

<?php $form = ActiveForm::begin(]) ?>
<?= $form->field($model, 'file')->fileInput() ?>
<button>Submit</button>
<?php ActiveForm::end() ?>

Контроллер:

public function actionOneFile()
{
  $model = new UploadFileForm();

  if (Yii::$app->request->isPost) {
    $model->file = UploadedFile::getInstance($model, 'file');
    if ($model->upload()) {
      Yii::$app->session->setFlash('success', 'Изображение загружено');
      return $this->refresh();
    }
  }
  return $this->render('index', );
}

Загрузка нескольких файлов

Класс

class UploadFilesForm extends Model
{
  /**
   * @var UploadedFile[]
   */
  public $files;

  public function rules()
  {
    return ,
        'checkExtensionByMimeType' => true,
        'maxSize' => 512000, // 500 килобайт = 500 * 1024 байта = 512 000 байт
        'tooBig' => 'Limit is 500KB',
        'maxFiles' => 5
      ]
    ];
  }

  public function upload()
  {
    if ($this->validate()) {
      foreach ($this->files as $file) {
        $file->saveAs('uploads/' . $this->randomFileName($file->extension));
      }
      return true;
    } else {
      return false;
    }
  }

  private function randomFileName($extension = false)
  {
    $extension = $extension ? '.' . $extension : '';
    do {
      $name = md5(microtime() . rand(0, 1000));
      $file = $name . $extension;
    } while (file_exists($file));
    return $file;
  }
}

Представление:

<?php
use yii\widgets\ActiveForm;
/* @var $this yii\web\View */
/* @var $model \frontend\forms\UploadFileForm */
?>

<?php $form = ActiveForm::begin(]) ?>
  <?= $form->field($model, 'files[]')->fileInput(['multiple' => true, 'accept' => 'image/*']) ?>
  <button>Submit</button>
  <?php ActiveForm::end() ?>

Контроллер:

public function actionMultiFile()
{
  $model = new UploadFilesForm();

  if (Yii::$app->request->isPost) {
    $model->files = UploadedFile::getInstances($model, 'files');
    if ($model->upload()) {
      Yii::$app->session->setFlash('success', 'Изображения загружены');
      return $this->refresh();
    }
  }
  return $this->render('index', );
}

Liability

9.1
ul is making its website available on a worldwide basis. With the exception of Users referenced in hereof, the following applies with respect to all Users: ul hereby excludes any liability for reimbursement of expenses or for compensatory damages or other claims for recourse against ul, including claims for compensation of lost profits, compensation of consequential damages and indirect damages. The foregoing shall not apply with respect to ul’s liability on the basis of mandatory provisions of law, nor shall it apply to damage or losses which ul or its legal representatives or vicarious agents cause by intentional act or omission or gross negligence.
9.2
The following applies to Users whose ordinary residence at the time of entering into the agreement was in the Federal Republic of Germany:
9.2.1
ul shall in each case bear unlimited liability for losses:
  • due to injury to life, limb or health, which are based on an intentional or negligent breach of duty and/or which are otherwise based on intentional or negligent conduct of ul or one of its legal representatives or vicarious agents;
  • due to the lack of or the cessation of a characteristic warranted by ul and/or in the event of a failure to satisfy a warranty granted by ul;
  • based on an intentional or grossly negligent breach of duty and/or based otherwise on intentional or grossly negligent conduct of ul or one of its legal representatives or vicarious agents;
  • based on the fact that ul has fraudulently concealed a defect.
9.2.2
Unless otherwise agreed in and hereof, ul shall in all further and other respects bear liability to Premium Account Users for losses caused by slightly negligent breach of material obligations («Cardinal Duties») or other contractual obligations by ul or one of its legal representatives or vicarious agents, and only subject to a limitation on its liability to losses which are typical for the contract and foreseeable. Cardinal Duties are obligations without the satisfaction of which it is not possible to properly perform the contract at all and as to which the User may rely on ul’s compliance. ul hereby excludes no-fault liability under sec. 536a (1) modality (1) of the German Civil Code for defects which were already present at the time the agreement was entered into.
9.2.3
Unless otherwise provided in and , ul’s liability to Free Account Users is hereby excluded in cases of simple negligent conduct by ul or its legal representatives or vicarious agents.
9.2.4
The foregoing rules shall apply irrespective of whether the claims are contractual or statutory in nature and shall also apply mutatis mutandis with respect to liability for compensation of futile expenditures. The above-referenced exclusions of liability and limitations on liability shall not apply with respect to liability under the German Products Liability Act. In all cases, the right to raise the defence of contributory fault shall remain unaffected by the foregoing.

Uploading Files with PHP


In this tutorial we will learn how to upload files on remote server using a Simple HTML form and PHP. You can upload any kind of file like images, videos, ZIP files, Microsoft Office documents, PDFs, as well as executables files and a wide range of other file types.

Step 1: Creating an HTML form to upload the file

The following example will create a simple HTML form that can be used to upload files.

Example

Download

Note: In addition to a file-select field the upload form must use the HTTP post method and must contain an attribute. This attribute ensures that the form data is encoded as mulitpart MIME data — which is required for uploading the large quantities of binary data such as image, audio, video, etc.

Step 2: Processing the uploaded file

Here’s the complete code of our «upload-manager.php» file. It will store the uploaded file in a «upload» folder on permanent basis as well as implement some basic security check like file type and file size to ensure that users upload the correct file type and within the allowed limit.

Example

Download

Note: The above script prevents uploading a file with the same name as an existing file in the same folder. However, if you want to allow this just prepend the file name with a random string or timestamp, like

You might be wondering what this code was all about. Well, let’s go through each part of this example code one by one for a better understanding of this process.

Terms of Service

12.1
These TOS and agreements concluded on the basis of these TOS shall be governed by the law of the Confoederatio Helvetica, excluding application of the UN CISG and excluding international choice of law rules, in particular excluding any choice of law rules referring to the law of another country or providing for renvoi.
12.2
Jurisdiction and venue for all disputes on the basis of these TOS shall lie (to the extent permitted by law) with the courts located at ul’s registered office. However, ul is entitled to assert legal remedies against Users at Users’ domicile, and in particular to bring actions against Users in the courts of their domicile.
12.3
If any provision of this agreement should be or become invalid or impracticable in whole or in part, the validity of performance of the remaining provisions of this agreement shall remain unaffected thereby.
12.4
These English TOS are a convenience translation only. The only relevant TOS are those in German.

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