358 lines
9.0 KiB
PHP
358 lines
9.0 KiB
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;
|
||
|
||
/**
|
||
* The great Constructor!
|
||
*
|
||
* @param string $path
|
||
* The base location of H5P files
|
||
*/
|
||
function __construct($path) {
|
||
// Set H5P storage path
|
||
$this->path = $path;
|
||
}
|
||
|
||
/**
|
||
* 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 int $id
|
||
* What makes this content unique.
|
||
*/
|
||
public function saveContent($source, $id) {
|
||
$dest = "{$this->path}/content/{$id}";
|
||
|
||
// Remove any old content
|
||
\H5PCore::deleteFileTree($dest);
|
||
|
||
self::copyFileTree($source, $dest);
|
||
}
|
||
|
||
/**
|
||
* Remove content folder.
|
||
*
|
||
* @param int $id
|
||
* Content identifier
|
||
*/
|
||
public function deleteContent($id) {
|
||
\H5PCore::deleteFileTree("{$this->path}/content/{$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 = $this->path . '/content/';
|
||
self::copyFileTree($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, $target) {
|
||
self::copyFileTree("{$this->path}/content/{$id}", $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);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 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.
|
||
*
|
||
* TODO: Will be made private when the editor file handling is done by this
|
||
* class!
|
||
*
|
||
* @param string $path
|
||
* @return bool
|
||
*/
|
||
public static function dirReady($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;
|
||
}
|
||
}
|