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README.txt	723 B	-rw-r--r--
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h5p-default-storage.class.php	15.44 KB	-rw-r--r--
h5p-development.class.php	6.02 KB	-rw-r--r--
h5p-event-base.class.php	5.57 KB	-rw-r--r--
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h5p.classes.php	187.62 KB	-rw-r--r--

Code Editor : h5p-default-storage.class.php

<?php

/**
 * File info?
 */

/**
 * The default file storage class for H5P. Will carry out the requested file
 * operations using PHP's standard file operation functions.
 *
 * Some implementations of H5P that doesn't use the standard file system will
 * want to create their own implementation of the \H5P\FileStorage interface.
 *
 * @package    H5P
 * @copyright  2016 Joubel AS
 * @license    MIT
 */
class H5PDefaultStorage implements \H5PFileStorage {
  private $path, $alteditorpath;

/**
   * The great Constructor!
   *
   * @param string $path
   *  The base location of H5P files
   * @param string $alteditorpath
   *  Optional. Use a different editor path
   */
  function __construct($path, $alteditorpath = NULL) {
    // Set H5P storage path
    $this->path = $path;
    $this->alteditorpath = $alteditorpath;
  }

/**
   * Store the library folder.
   *
   * @param array $library
   *  Library properties
   */
  public function saveLibrary($library) {
    $dest = $this->path . '/libraries/' . \H5PCore::libraryToString($library, TRUE);

// Make sure destination dir doesn't exist
    \H5PCore::deleteFileTree($dest);

// Move library folder
    self::copyFileTree($library['uploadDirectory'], $dest);
  }

/**
   * Store the content folder.
   *
   * @param string $source
   *  Path on file system to content directory.
   * @param array $content
   *  Content properties
   */
  public function saveContent($source, $content) {
    $dest = "{$this->path}/content/{$content['id']}";

// Remove any old content
    \H5PCore::deleteFileTree($dest);

self::copyFileTree($source, $dest);
  }

/**
   * Remove content folder.
   *
   * @param array $content
   *  Content properties
   */
  public function deleteContent($content) {
    \H5PCore::deleteFileTree("{$this->path}/content/{$content['id']}");
  }

/**
   * Creates a stored copy of the content folder.
   *
   * @param string $id
   *  Identifier of content to clone.
   * @param int $newId
   *  The cloned content's identifier
   */
  public function cloneContent($id, $newId) {
    $path = $this->path . '/content/';
    if (file_exists($path . $id)) {
      self::copyFileTree($path . $id, $path . $newId);
    }
  }

/**
   * Get path to a new unique tmp folder.
   *
   * @return string
   *  Path
   */
  public function getTmpPath() {
    $temp = "{$this->path}/temp";
    self::dirReady($temp);
    return "{$temp}/" . uniqid('h5p-');
  }

/**
   * Fetch content folder and save in target directory.
   *
   * @param int $id
   *  Content identifier
   * @param string $target
   *  Where the content folder will be saved
   */
  public function exportContent($id, $target) {
    $source = "{$this->path}/content/{$id}";
    if (file_exists($source)) {
      // Copy content folder if it exists
      self::copyFileTree($source, $target);
    }
    else {
      // No contnet folder, create emty dir for content.json
      self::dirReady($target);
    }
  }

/**
   * Fetch library folder and save in target directory.
   *
   * @param array $library
   *  Library properties
   * @param string $target
   *  Where the library folder will be saved
   * @param string $developmentPath
   *  Folder that library resides in
   */
  public function exportLibrary($library, $target, $developmentPath=NULL) {
    $folder = \H5PCore::libraryToString($library, TRUE);
    $srcPath = ($developmentPath === NULL ? "/libraries/{$folder}" : $developmentPath);
    self::copyFileTree("{$this->path}{$srcPath}", "{$target}/{$folder}");
  }

/**
   * Save export in file system
   *
   * @param string $source
   *  Path on file system to temporary export file.
   * @param string $filename
   *  Name of export file.
   * @throws Exception Unable to save the file
   */
  public function saveExport($source, $filename) {
    $this->deleteExport($filename);

if (!self::dirReady("{$this->path}/exports")) {
      throw new Exception("Unable to create directory for H5P export file.");
    }

if (!copy($source, "{$this->path}/exports/{$filename}")) {
      throw new Exception("Unable to save H5P export file.");
    }
  }

/**
   * Removes given export file
   *
   * @param string $filename
   */
  public function deleteExport($filename) {
    $target = "{$this->path}/exports/{$filename}";
    if (file_exists($target)) {
      unlink($target);
    }
  }

/**
   * Check if the given export file exists
   *
   * @param string $filename
   * @return boolean
   */
  public function hasExport($filename) {
    $target = "{$this->path}/exports/{$filename}";
    return file_exists($target);
  }

/**
   * Will concatenate all JavaScrips and Stylesheets into two files in order
   * to improve page performance.
   *
   * @param array $files
   *  A set of all the assets required for content to display
   * @param string $key
   *  Hashed key for cached asset
   */
  public function cacheAssets(&$files, $key) {
    foreach ($files as $type => $assets) {
      if (empty($assets)) {
        continue; // Skip no assets
      }

$content = '';
      foreach ($assets as $asset) {
        // Get content from asset file
        $assetContent = file_get_contents($this->path . $asset->path);
        $cssRelPath = preg_replace('/[^\/]+$/', '', $asset->path);

// Get file content and concatenate
        if ($type === 'scripts') {
          $content .= $assetContent . ";\n";
        }
        else {
          // Rewrite relative URLs used inside stylesheets
          $content .= preg_replace_callback(
              '/url$[\'"]?([^"\')]+)[\'"]?$/i',
              function ($matches) use ($cssRelPath) {
                  if (preg_match("/^(data:|([a-z0-9]+:)?\/)/i", $matches[1]) === 1) {
                    return $matches[0]; // Not relative, skip
                  }
                  return 'url("../' . $cssRelPath . $matches[1] . '")';
              },
              $assetContent) . "\n";
        }
      }

self::dirReady("{$this->path}/cachedassets");
      $ext = ($type === 'scripts' ? 'js' : 'css');
      $outputfile = "/cachedassets/{$key}.{$ext}";
      file_put_contents($this->path . $outputfile, $content);
      $files[$type] = array((object) array(
        'path' => $outputfile,
        'version' => ''
      ));
    }
  }

/**
   * Will check if there are cache assets available for content.
   *
   * @param string $key
   *  Hashed key for cached asset
   * @return array
   */
  public function getCachedAssets($key) {
    $files = array();

$js = "/cachedassets/{$key}.js";
    if (file_exists($this->path . $js)) {
      $files['scripts'] = array((object) array(
        'path' => $js,
        'version' => ''
      ));
    }

$css = "/cachedassets/{$key}.css";
    if (file_exists($this->path . $css)) {
      $files['styles'] = array((object) array(
        'path' => $css,
        'version' => ''
      ));
    }

return empty($files) ? NULL : $files;
  }

/**
   * Remove the aggregated cache files.
   *
   * @param array $keys
   *   The hash keys of removed files
   */
  public function deleteCachedAssets($keys) {
    foreach ($keys as $hash) {
      foreach (array('js', 'css') as $ext) {
        $path = "{$this->path}/cachedassets/{$hash}.{$ext}";
        if (file_exists($path)) {
          unlink($path);
        }
      }
    }
  }

/**
   * Read file content of given file and then return it.
   *
   * @param string $file_path
   * @return string
   */
  public function getContent($file_path) {
    return file_get_contents($file_path);
  }

/**
   * Save files uploaded through the editor.
   * The files must be marked as temporary until the content form is saved.
   *
   * @param \H5peditorFile $file
   * @param int $contentid
   */
  public function saveFile($file, $contentId) {
    // Prepare directory
    if (empty($contentId)) {
      // Should be in editor tmp folder
      $path = $this->getEditorPath();
    }
    else {
      // Should be in content folder
      $path = $this->path . '/content/' . $contentId;
    }
    $path .= '/' . $file->getType() . 's';
    self::dirReady($path);

// Add filename to path
    $path .= '/' . $file->getName();

copy($_FILES['file']['tmp_name'], $path);

return $file;
  }

/**
   * Copy a file from another content or editor tmp dir.
   * Used when copy pasting content in H5P Editor.
   *
   * @param string $file path + name
   * @param string|int $fromid Content ID or 'editor' string
   * @param int $toid Target Content ID
   */
  public function cloneContentFile($file, $fromId, $toId) {
    // Determine source path
    if ($fromId === 'editor') {
      $sourcepath = $this->getEditorPath();
    }
    else {
      $sourcepath = "{$this->path}/content/{$fromId}";
    }
    $sourcepath .= '/' . $file;

// Determine target path
    $filename = basename($file);
    $filedir = str_replace($filename, '', $file);
    $targetpath = "{$this->path}/content/{$toId}/{$filedir}";

// Make sure it's ready
    self::dirReady($targetpath);

$targetpath .= $filename;

// Check to see if source exist and if target doesn't
    if (!file_exists($sourcepath) || file_exists($targetpath)) {
      return; // Nothing to copy from or target already exists
    }

copy($sourcepath, $targetpath);
  }

/**
   * Copy a content from one directory to another. Defaults to cloning
   * content from the current temporary upload folder to the editor path.
   *
   * @param string $source path to source directory
   * @param string $contentId Id of contentarray
   */
  public function moveContentDirectory($source, $contentId = NULL) {
    if ($source === NULL) {
      return NULL;
    }

// TODO: Remove $contentId and never copy temporary files into content folder. JI-366
    if ($contentId === NULL || $contentId == 0) {
      $target = $this->getEditorPath();
    }
    else {
      // Use content folder
      $target = "{$this->path}/content/{$contentId}";
    }

$contentSource = $source . '/' . 'content';
    $contentFiles = array_diff(scandir($contentSource), array('.','..', 'content.json'));
    foreach ($contentFiles as $file) {
      if (is_dir("{$contentSource}/{$file}")) {
        self::copyFileTree("{$contentSource}/{$file}", "{$target}/{$file}");
      }
      else {
        copy("{$contentSource}/{$file}", "{$target}/{$file}");
      }
    }

// TODO: Return list of all files so that they can be marked as temporary. JI-366
  }

/**
   * Checks to see if content has the given file.
   * Used when saving content.
   *
   * @param string $file path + name
   * @param int $contentId
   * @return string File ID or NULL if not found
   */
  public function getContentFile($file, $contentId) {
    $path = "{$this->path}/content/{$contentId}/{$file}";
    return file_exists($path) ? $path : NULL;
  }

/**
   * Checks to see if content has the given file.
   * Used when saving content.
   *
   * @param string $file path + name
   * @param int $contentid
   * @return string|int File ID or NULL if not found
   */
  public function removeContentFile($file, $contentId) {
    $path = "{$this->path}/content/{$contentId}/{$file}";
    if (file_exists($path)) {
      unlink($path);

// Clean up any empty parent directories to avoid cluttering the file system
      $parts = explode('/', $path);
      while (array_pop($parts) !== NULL) {
        $dir = implode('/', $parts);
        if (is_dir($dir) && count(scandir($dir)) === 2) { // empty contains '.' and '..'
          rmdir($dir); // Remove empty parent
        }
        else {
          return; // Not empty
        }
      }
    }
  }

/**
   * Check if server setup has write permission to
   * the required folders
   *
   * @return bool True if site can write to the H5P files folder
   */
  public function hasWriteAccess() {
    return self::dirReady($this->path);
  }

/**
   * Check if the file presave.js exists in the root of the library
   *
   * @param string $libraryFolder
   * @param string $developmentPath
   * @return bool
   */
  public function hasPresave($libraryFolder, $developmentPath = null) {
      $path = is_null($developmentPath) ? 'libraries' . '/' . $libraryFolder : $developmentPath;
      $filePath = realpath($this->path . '/' . $path . '/' . 'presave.js');
    return file_exists($filePath);
  }

/**
   * Check if upgrades script exist for library.
   *
   * @param string $machineName
   * @param int $majorVersion
   * @param int $minorVersion
   * @return string Relative path
   */
  public function getUpgradeScript($machineName, $majorVersion, $minorVersion) {
    $upgrades = "/libraries/{$machineName}-{$majorVersion}.{$minorVersion}/upgrades.js";
    if (file_exists($this->path . $upgrades)) {
      return $upgrades;
    }
    else {
      return NULL;
    }
  }

/**
   * Store the given stream into the given file.
   *
   * @param string $path
   * @param string $file
   * @param resource $stream
   * @return bool
   */
  public function saveFileFromZip($path, $file, $stream) {
    $filePath = $path . '/' . $file;

// Make sure the directory exists first
    $matches = array();
    preg_match('/(.+)\/[^\/]*$/', $filePath, $matches);
    self::dirReady($matches[1]);

// Store in local storage folder
    return file_put_contents($filePath, $stream);
  }

/**
   * Recursive function for copying directories.
   *
   * @param string $source
   *  From path
   * @param string $destination
   *  To path
   * @return boolean
   *  Indicates if the directory existed.
   *
   * @throws Exception Unable to copy the file
   */
  private static function copyFileTree($source, $destination) {
    if (!self::dirReady($destination)) {
      throw new \Exception('unabletocopy');
    }

$ignoredFiles = self::getIgnoredFiles("{$source}/.h5pignore");

$dir = opendir($source);
    if ($dir === FALSE) {
      trigger_error('Unable to open directory ' . $source, E_USER_WARNING);
      throw new \Exception('unabletocopy');
    }

while (false !== ($file = readdir($dir))) {
      if (($file != '.') && ($file != '..') && $file != '.git' && $file != '.gitignore' && !in_array($file, $ignoredFiles)) {
        if (is_dir("{$source}/{$file}")) {
          self::copyFileTree("{$source}/{$file}", "{$destination}/{$file}");
        }
        else {
          copy("{$source}/{$file}", "{$destination}/{$file}");
        }
      }
    }
    closedir($dir);
  }

/**
   * Retrieve array of file names from file.
   *
   * @param string $file
   * @return array Array with files that should be ignored
   */
  private static function getIgnoredFiles($file) {
    if (file_exists($file) === FALSE) {
      return array();
    }

$contents = file_get_contents($file);
    if ($contents === FALSE) {
      return array();
    }

return preg_split('/\s+/', $contents);
  }

/**
   * Recursive function that makes sure the specified directory exists and
   * is writable.
   *
   * @param string $path
   * @return bool
   */
  private static function dirReady($path) {
    if (!file_exists($path)) {
      $parent = preg_replace("/\/[^\/]+\/?$/", '', $path);
      if (!self::dirReady($parent)) {
        return FALSE;
      }

mkdir($path, 0777, true);
    }

if (!is_dir($path)) {
      trigger_error('Path is not a directory ' . $path, E_USER_WARNING);
      return FALSE;
    }

if (!is_writable($path)) {
      trigger_error('Unable to write to ' . $path . ' – check directory permissions –', E_USER_WARNING);
      return FALSE;
    }

return TRUE;
  }

/**
   * Easy helper function for retrieving the editor path
   *
   * @return string Path to editor files
   */
  private function getEditorPath() {
    return ($this->alteditorpath !== NULL ? $this->alteditorpath : "{$this->path}/editor");
  }
}

${this.title}

Code Editor : h5p-default-storage.class.php