Wester Chunk Upload Library For PHP

Wester chunk upload is a php library to handle chunked uploads which supports local and ftp file upload out of the box.
You'll feel safe with the built-in file validator.

Table of contents

• Installation
• Basic Usage
• Drivers
  • Implement The Driver
• Methods
• Properties
• Validation Rules
• Language
• Flags
• HTTP Response Status Codes
• Client Side
  • Headers
  • Examples
    • Javascript
    • Contribution
• Support Us

Installation

composer require wester/chunk-upload

Basic Usage

Here's an example of the package.

// You don't need this line in laravel or some other frameworks.
require("./vendor/autoload.php");

use Wester\ChunkUpload\Chunk;
use Wester\ChunkUpload\Validation\Exceptions\ValidationException;

try {
    $chunk = new Chunk([
        'name' => 'video', // same as    $_FILES['video']
        'chunk_size' => 4000, // must be equal to the value specified on the client side

        // Driver
        'driver' => 'local', // [local, ftp]

        // Local driver details
        'local_driver' => [
            'path' => __DIR__ . '/uploads/', // where to upload the final file
            'tmp_path' => __DIR__ . '/uploads/temp/', // where to store the temp chunks
        ],

        // FTP driver details
        'ftp_driver' => [
            'server' => '',
            'username' => '',
            'password' => '',

            'path' =>  '/uploads/', // where to upload the final file
            'tmp_path' => '/uploads/temp/', // where to store the temp chunks
        ],

        // File details
        'file_name' => Chunk::RANDOM_FILE_NAME,
        'file_extension' => Chunk::ORIGINAL_FILE_EXTENSION,

        // File validation
        'validation' => ['extension:mp4,avi'],
    ]);

    $chunk->validate()->store();

    if ($chunk->isLast()) {

        // done
        $chunk->getFilePath();
        
    } else {
        $chunk->response()->json([
            'progress' => $chunk->getProgress()
        ]);
    }

} catch (ValidationException $e) {
    $e->response(422)->json([
        'message' => $e->getMessage(),
        'data' => $e->getErrors(),
    ]);
} catch (\Exception $e) {
    $e->response(400)->abort();
}

Drivers

This package supports ftp file upload out of the box.
local and ftp or custom drivers can be used.

'driver' => 'ftp',

• Implement The Driver

  Your custom driver should implement the \Wester\ChunkUpload\Drivers\Contracts\DriverInterface.

  'driver' => \My\Custom\Drivers\DriverName::class,
  'custom_driver' => [
      'path' =>  '/uploads/',
      'tmp_path' => '/uploads/temp/',
  ],

  <?php
  
  namespace My\Custom\Drivers;
  
  class DriverName implements \Wester\ChunkUpload\Drivers\Contracts\DriverInterface
  {
      public function open() {};
      public function close() {};
      public function store($fileName) {};
      public function delete() {};
      public function move() {};
      public function increase() {};
      public function prevExists() {};
      public function exists() {};
  }

Methods

• store() stores the chunk and merges it.

• validate() validates the chunk.

• getFilePath() gets the final file path.

• getProgress() gets the progress percentage (float).

• isLast() checks if its the last chunk.

• getFileExtension() gets the file extension.

• getFileName() gets the file name without extension.

• getFullFileName() gets the full file name with extension.

• getTempFilePath() gets the temp file path.

• getSize() gets the current chunk size.

• getTotalNumber() gets the total number of chunks.

• setLanguage([...]) sets the language to the provided array

• response($status = null) returns an instance of \Wester\ChunkUpload\Response

  $chunk->response(200)->json([...]);
  $chunk->response()->json([...]);
  
  // If an exception is caught...
  $e->response(400)->...
  $e->response(400)->abort();
  $e->response()->abort(400);
  ...

Properties

• configs returns an array of the parsed configs.

  $chunk->configs['name'];
  ...

• header returns an instance of \Wester\ChunkUpload\Header

  $chunk->header->chunkNumber;
  $chunk->header->chunkTotalNumber;
  $chunk->header->chunkSize; // equal to: x-chunk-size 
  $chunk->header->fileName;
  $chunk->header->fileSize;
  $chunk->header->fileIdentity;

Validation Rules

• extension

  'validation' => ['extension:mp4,avi']

• size

  'validation' => ['size:237492']

• min

  'validation' => ['min:10000']

• max

  'validation' => ['max:90000']

Language

You can easily change the validation messages the same as Laravel.

$chunk->setLanguage([
    'min' => [
        'numeric' => 'The :attribute must be at least :min.',
        'file' => 'The :attribute must be at least :min kilobytes.',
    ],
    'max' => [
        'numeric' => 'The :attribute may not be greater than :max.',
        'file' => 'The :attribute may not be greater than :max kilobytes.',
    ],
    'size' => [
        'numeric' => 'The :attribute must be :size.',
        'file' => 'The :attribute must be :size kilobytes.',
    ],
    'mimes' => 'The :attribute must be a file of type: :values.',

    'attributes' => [
        'x-file-name' => 'file',
        'x-file-size' => 'file',
    ],
]);

Flags

• Chunk::RANDOM_FILE_NAME creates a random file name.
• Chunk::ORIGINAL_FILE_NAME preserves the original file name.
• Chunk::ORIGINAL_FILE_EXTENSION preserves the original file extension.

You can also specify a custom file name and extension.

HTTP Response Status Codes

This package uses the HTTP response status codes to decide what to do next if the request fails or succeeds when uploading.

• Success

  • 200 All of the chunks have been uploaded completely.
  • 201 The server is waiting for the next chunk to be sent.

• Errors

  The following status codes will interrupt the process.

  • 400
  • 404
  • 415
  • 422
  • 500
  • 501

Feel free to add more status codes to your client side.

If another status code is returned the chunk must be re-uploaded such as timeout and network error.

Client Side

Headers

There are some headers that should be sent to the server.

• x-chunk-number The current chunk number which is being uploaded.
• x-chunk-total-number The total number of chunks.
• x-chunk-size Maximum size of each chunk. (each chunk must be 4000 bytes and only the last chunk can be less than that)
• x-file-name The uploaded file name.
• x-file-size The uploaded file size.
• x-file-identity Random string for the file which must be 32 characters in length.

An example of the headers.

{
    "x-chunk-number" : 1,
    "x-chunk-total-number" : 5,
    "x-chunk-size" : 4000,
    "x-file-name" : "my-file-name.mp4",
    "x-file-size" : 20000,
    "x-file-identity" : "rmghdygvdstcsjglltmbvkynxpeajgcg"
}

Examples & Packages

You can find examples in wester-chunk-upload-examples repository.

Javascript

The client side implementation in Javascript.

• https://github.com/hossein-zare/wester-chunk-upload-examples/tree/master/javascript

React Native

The client side implementation in React Native.

• https://github.com/hossein-zare/react-native-chunk-upload

Contribution

• If you want to add more implementations in other languages please submit your PR to the wester-chunk-upload-examples repository.

Support Us

Just star the repository, that's it! 😉