Move h5p functionality to the library
Svein-Tore Griff With
parent
c0633f01af
commit
269339228e
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@ -5,6 +5,9 @@ the following interfaces in order for the h5p libraries to work:
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- TODO: Fill in here
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In addition frameworks need to implement:
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In addition frameworks need to do the following:
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- TODO: Fill in here
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- Provide a form for uploading h5p packages.
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- Place the uploaded h5p packages in a temporary directory
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See existing implementations for details. For instance the Drupal h5p module located on drupal.org/project/h5p
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180
h5p.classes.php
180
h5p.classes.php
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@ -1,14 +1,184 @@
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<?php
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interface h5pFramework {
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function setErrorMessage($message);
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function setInfoMessage($message);
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function translate($message, $replacements);
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public function setErrorMessage($message);
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public function setInfoMessage($message);
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public function t($message, $replacements);
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public function getUploadedH5pDir();
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public function getTempPath();
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public function getUploadedH5pPath();
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}
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class h5p {
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public $h5pFramework;
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public $h5pF;
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public function __construct($h5pFramework) {
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$this->h5pFramework = $h5pFramework;
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$this->h5pF = $h5pFramework;
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}
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public function validatePackage() {
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// Requires PEAR
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require_once 'Archive/Tar.php';
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// Create a temporary dir to extract package in.
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$tmp_dir = $this->h5pFramework->getTempDir();
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$tmp_path = $this->h5pFramework->getTempPath();
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// Extract and then remove the package file.
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$tar = new Archive_Tar($tmp_path, 'bz2');
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if (!$tar->extract($tmp_dir)) {
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$this->setErrorMessage($this->t('The file you uploaded is not a valid HTML5 Pack.'));
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$this->rRmdir($tmp_dir);
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return;
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}
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unlink($tmp_path);
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// Process content and libraries
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$contents = array();
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$tars = scandir($tmp_dir);
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for ($i = 2, $s = count($tars); $i < $s; $i++) {
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if (substr($tars[$i], -4) == '.tar') {
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$tar_file = $tmp_dir . DIRECTORY_SEPARATOR . $tars[$i];
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$tar_name = substr($tars[$i], 0, -4);
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$tar_id = md5_file($tar_file);
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$tar_time = filemtime($tar_file);
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$content_path = $files_path . DIRECTORY_SEPARATOR . $tar_id;
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// Extract content to our files dir.
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if (is_dir($content_path)) {
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continue; // We already have this content/library.
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}
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mkdir($content_path);
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$tar = new Archive_Tar($tar_file);
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if (!$tar->extract($content_path)) {
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continue; // Wasn't a valid tar file.
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}
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if (preg_match('/[^a-z0-9\-]/', $tar_name)) {
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$this->setErrorMessage($this->t('Invalid name: %name', array('%name' => $tar_name)));
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$this->rRmdir($content_path);
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continue;
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}
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// Go to extracted stuff and check it.
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$json = file_get_contents($content_path . DIRECTORY_SEPARATOR . 'index.js');
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if (!$json) {
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$this->setErrorMessage($this->t('Could not find index.js file: %name', array('%name' => $tar_name)));
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$this->rRmdir($content_path);
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continue;
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}
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$content = json_decode($json);
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if (!$content) {
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$this->setErrorMessage($this->t('Invalid index.js file format: %name', array('%name' => $tar_name)));
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$this->rRmdir($content_path);
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continue;
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}
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if ($content->type != H5P_CONTENT && $content->type != H5P_LIBRARY) {
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$this->setErrorMessage($this->t('Invalid content type: %name', array('%name' => $tar_name)));
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$this->rRmdir($content_path);
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continue;
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}
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if ($content->type == H5P_CONTENT) {
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if (!isset($content->options)) {
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$this->setErrorMessage($this->t('Missing start options: %name', array('%name' => $tar_name)));
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$this->rRmdir($content_path);
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continue;
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}
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if (!isset($content->class)) {
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$this->setErrorMessage($this->t('Missing start class: %name', array('%name' => $tar_name)));
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$this->rRmdir($content_path);
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continue;
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}
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if (preg_match('/^[A-Z][A-Za-z0-9]*$/', $content->class)) {
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$this->setErrorMessage($this->t('Invalid class name: %name', array('%name' => $content->class)));
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$this->rRmdir($content_path);
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continue;
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}
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$content->options = json_encode($content->options);
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}
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else {
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if (!isset($content->js) || !empty($content->js)) {
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$this->setErrorMessage($this->t('Library without any JS files: %name', array('%name' => $tar_name)));
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$this->rRmdir($content_path);
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continue;
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}
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// Check if JS files exist.
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for ($j = 0, $l = count($content->js); $j < $l; $j++) {
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$content->js[$j] = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $content->js[$j]);
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if (!file_exists($content_path . DIRECTORY_SEPARATOR . $content->js[$j])) {
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$this->setErrorMessage($this->t('The JS file %file is missing from library: %name', array('%file' => $content->js[$j], '%name' => $tar_name)));
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$this->rRmdir($content_path);
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continue;
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}
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}
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// Check if CSS files exist.
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for ($j = 0, $l = count($content->css); $j < $l; $j++) {
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$content->css[$j] = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $content->css[$j]);
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if (!file_exists($content_path . DIRECTORY_SEPARATOR . $content->css[$j])) {
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$this->setErrorMessage($this->t('The CSS file %file is missing from library: %name', array('%file' => $content->css[$j], '%name' => $tar_name)));
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$this->rRmdir($content_path);
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continue;
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}
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}
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}
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$content->id = $tar_id;
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$content->name = $tar_name;
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$content->time = $tar_time;
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$contents[$content->id] = $content;
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}
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}
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$this->rRmdir($tmp_dir);
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foreach ($contents as &$content) {
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if ($content->type == H5P_CONTENT) {
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// Check dependencies for content
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$name = strtolower(preg_replace('/.+([A-Z])/', '-$0', $content->class));
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$missing_dependencies = h5p_find_missing_dependencies($contents, $name);
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if ($missing_dependencies) {
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$this->setErrorMessage($this->t('%name is missing the following dependencies: %dependencies', array('%name' => $content->name, '%dependencies' => implode(',', $missing_dependencies))));
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}
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else {
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// TODO: Insert stuff?
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// TODO: Insert into database
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// TODO: Insert all files into files table.
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}
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}
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}
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// TODO: rmdir for libraries that doesn't have db records.
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}
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/**
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* Recursive function for removing directories.
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*
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* @param string $dir Directory.
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* @return boolean Indicates if the directory existed.
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*/
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private function rRmdir($dir) {
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if (is_dir($dir)) {
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$files = scandir($dir);
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for ($i = 2, $s = count($files); $i < $s; $i++) {
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$file = $dir . DIRECTORY_SEPARATOR . $files[$i];
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if (!$this->rRmdir($file)) {
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unlink($file);
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}
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}
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rmdir($dir);
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return TRUE;
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}
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else {
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return FALSE;
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}
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}
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}
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?>
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