File.php in One Click Upload 7.2

Namespace

Flow

File

flowphp/src/Flow/File.php

<?php

namespace Flow;

class File {

  /**
   * @var RequestInterface
   */
  protected $request;

  /**
   * @var ConfigInterface
   */
  private $config;

  /**
   * File hashed unique identifier
   *
   * @var string
   */
  private $identifier;

  /**
   * Constructor
   *
   * @param ConfigInterface  $config
   * @param RequestInterface $request
   */
  public function __construct(ConfigInterface $config, RequestInterface $request = null) {
    $this->config = $config;
    if ($request === null) {
      $request = new Request();
    }
    $this->request = $request;
    $this->identifier = call_user_func($this->config
      ->getHashNameCallback(), $request);
  }

  /**
   * Get file identifier
   *
   * @return string
   */
  public function getIdentifier() {
    return $this->identifier;
  }

  /**
   * Return chunk path
   *
   * @param int $index
   *
   * @return string
   */
  public function getChunkPath($index) {
    return $this->config
      ->getTempDir() . DIRECTORY_SEPARATOR . basename($this->identifier) . '_' . (int) $index;
  }

  /**
   * Check if chunk exist
   *
   * @return bool
   */
  public function checkChunk() {
    return file_exists($this
      ->getChunkPath($this->request
      ->getCurrentChunkNumber()));
  }

  /**
   * Validate file request
   *
   * @return bool
   */
  public function validateChunk() {
    $file = $this->request
      ->getFile();
    if (!$file) {
      return false;
    }
    if (!isset($file['tmp_name']) || !isset($file['size']) || !isset($file['error'])) {
      return false;
    }
    if ($this->request
      ->getCurrentChunkSize() != $file['size']) {
      return false;
    }
    if ($file['error'] !== UPLOAD_ERR_OK) {
      return false;
    }
    return true;
  }

  /**
   * Save chunk
   *
   * @return bool
   */
  public function saveChunk() {
    $file = $this->request
      ->getFile();
    return $this
      ->_move_uploaded_file($file['tmp_name'], $this
      ->getChunkPath($this->request
      ->getCurrentChunkNumber()));
  }

  /**
   * Check if file upload is complete
   *
   * @return bool
   */
  public function validateFile() {
    $totalChunks = $this->request
      ->getTotalChunks();
    $totalChunksSize = 0;
    for ($i = $totalChunks; $i >= 1; $i--) {
      $file = $this
        ->getChunkPath($i);
      if (!file_exists($file)) {
        return false;
      }
      $totalChunksSize += filesize($file);
    }
    return $this->request
      ->getTotalSize() == $totalChunksSize;
  }

  /**
   * Merge all chunks to single file
   *
   * @param string $destination final file location
   *
   *
   * @throws FileLockException
   * @throws FileOpenException
   * @throws \Exception
   *
   * @return bool indicates if file was saved
   */
  public function save($destination) {
    $fh = fopen($destination, 'wb');
    if (!$fh) {
      throw new FileOpenException('failed to open destination file: ' . $destination);
    }
    if (!flock($fh, LOCK_EX | LOCK_NB, $blocked)) {

      // @codeCoverageIgnoreStart
      if ($blocked) {

        // Concurrent request has requested a lock.
        // File is being processed at the moment.
        // Warning: lock is not checked in windows.
        return false;
      }

      // @codeCoverageIgnoreEnd
      throw new FileLockException('failed to lock file: ' . $destination);
    }
    $totalChunks = $this->request
      ->getTotalChunks();
    try {
      $preProcessChunk = $this->config
        ->getPreprocessCallback();
      for ($i = 1; $i <= $totalChunks; $i++) {
        $file = $this
          ->getChunkPath($i);
        $chunk = fopen($file, "rb");
        if (!$chunk) {
          throw new FileOpenException('failed to open chunk: ' . $file);
        }
        if ($preProcessChunk !== null) {
          call_user_func($preProcessChunk, $chunk);
        }
        stream_copy_to_stream($chunk, $fh);
        fclose($chunk);
      }
    } catch (\Exception $e) {
      flock($fh, LOCK_UN);
      fclose($fh);
      throw $e;
    }
    if ($this->config
      ->getDeleteChunksOnSave()) {
      $this
        ->deleteChunks();
    }
    flock($fh, LOCK_UN);
    fclose($fh);
    return true;
  }

  /**
   * Delete chunks dir
   */
  public function deleteChunks() {
    $totalChunks = $this->request
      ->getTotalChunks();
    for ($i = 1; $i <= $totalChunks; $i++) {
      $path = $this
        ->getChunkPath($i);
      if (file_exists($path)) {
        unlink($path);
      }
    }
  }

  /**
   * This method is used only for testing
   *
   * @private
   * @codeCoverageIgnore
   *
   * @param string $filePath
   * @param string $destinationPath
   *
   * @return bool
   */
  public function _move_uploaded_file($filePath, $destinationPath) {
    return move_uploaded_file($filePath, $destinationPath);
  }

}

Classes

Name	Description
File