<?php
/**
* Interface defining functions the h5p library needs the framework to implement
*/
interface H5PFrameworkInterface {
/**
* Show the user an error message
*
* @param string $message
* The error message
*/
public function setErrorMessage($message);
/**
* Show the user an information message
*
* @param string $message
* The error message
*/
public function setInfoMessage($message);
/**
* Translation function
*
* @param string $message
* The english string to be translated.
* @param type $replacements
* An associative array of replacements to make after translation. Incidences
* of any key in this array are replaced with the corresponding value. Based
* on the first character of the key, the value is escaped and/or themed:
* - !variable: inserted as is
* - @variable: escape plain text to HTML
* - %variable: escape text and theme as a placeholder for user-submitted
* content
* @return string Translated string
*/
public function t($message, $replacements = array());
/**
* Get the Path to the last uploaded h5p
*
* @return string Path to the folder where the last uploaded h5p for this session is located.
*/
public function getUploadedH5pFolderPath();
/**
* @return string Path to the folder where all h5p files are stored
*/
public function getH5pPath();
/**
* Get the path to the last uploaded h5p file
*
* @return string Path to the last uploaded h5p
*/
public function getUploadedH5pPath();
/**
* Get id to an excisting library
*
* @param string $machineName
* The librarys machine name
* @param int $majorVersion
* The librarys major version
* @param int $minorVersion
* The librarys minor version
* @return int
* The id of the specified library or FALSE
*/
public function getLibraryId($machineName, $majorVersion, $minorVersion);
/**
* Is the library a patched version of an excisting library?
*
* @param object $library
* The library data for a library we are checking
* @return boolean
* TRUE if the library is a patched version of an excisting library
* FALSE otherwise
*/
public function isPatchedLibrary($library);
/**
* Store data about a library
*
* Also fills in the libraryId in the libraryData object if the object is new
*
* @param object $libraryData
* Object holding the information that is to be stored
*/
public function saveLibraryData(&$libraryData);
/**
* Stores contentData
*
* @param int $contentId
* Framework specific id identifying the content
* @param string $contentJson
* The content data that is to be stored
* @param array $mainJsonData
* The data extracted from the h5p.json file
* @param int $contentMainId
* Any contentMainId defined by the framework, for instance to support revisioning
*/
public function saveContentData($contentId, $contentJson, $mainJsonData, $mainLibraryId, $contentMainId = NULL);
/**
* Save what libraries a library is dependending on
*
* @param int $libraryId
* Library Id for the library we're saving dependencies for
* @param array $dependencies
* List of dependencies in the format used in library.json
* @param string $dependency_type
* What type of dependency this is, for instance it might be an editor dependency
*/
public function saveLibraryDependencies($libraryId, $dependencies, $dependency_type);
/**
* Copies library usage
*
* @param int $contentId
* Framework specific id identifying the content
* @param int $copyFromId
* Framework specific id identifying the content to be copied
* @param int $contentMainId
* Framework specific main id for the content, typically used in frameworks
* That supports versioning. (In this case the content id will typically be
* the version id, and the contentMainId will be the frameworks content id
*/
public function copyLibraryUsage($contentId, $copyFromId, $contentMainId = NULL);
/**
* Deletes content data
*
* @param int $contentId
* Framework specific id identifying the content
*/
public function deleteContentData($contentId);
/**
* Delete what libraries a content item is using
*
* @param int $contentId
* Content Id of the content we'll be deleting library usage for
*/
public function deleteLibraryUsage($contentId);
/**
* Saves what libraries the content uses
*
* @param int $contentId
* Framework specific id identifying the content
* @param array $librariesInUse
* List of libraries the content uses. Libraries consist of arrays with:
* - libraryId stored in $librariesInUse[<place>]['library']['libraryId']
* - libraryId stored in $librariesInUse[<place>]['preloaded']
*/
public function saveLibraryUsage($contentId, $librariesInUse);
/**
* Loads a library
*
* @param string $machineName
* @param int $majorVersion
* @param int $minorVersion
* @return array|FALSE
* Array representing the library with dependency descriptions
* FALSE if the library doesn't exist
*/
public function loadLibrary($machineName, $majorVersion, $minorVersion);
/**
* Delete all dependencies belonging to given library
*
* @param int $libraryId
* Library Id
*/
public function deleteLibraryDependencies($libraryId);
}
/**
* This class is used for validating H5P files
*/
class H5PValidator {
public $h5pF;
public $h5pC;
// Schemas used to validate the h5p files
private $h5pRequired = array(
'title' => '/^.{1,255}$/',
'language' => '/^[a-z]{1,5}$/',
'preloadedDependencies' => array(
'machineName' => '/^[\w0-9\-\.]{1,255}$/i',
'majorVersion' => '/^[0-9]{1,5}$/',
'minorVersion' => '/^[0-9]{1,5}$/',
),
'mainLibrary' => '/^[$a-z_][0-9a-z_\.$]{1,254}$/i',
'embedTypes' => array('iframe', 'div'),
);
private $h5pOptional = array(
'contentType' => '/^.{1,255}$/',
'author' => '/^.{1,255}$/',
'license' => '/^(cc-by|cc-by-sa|cc-by-nd|cc-by-nc|cc-by-nc-sa|cc-by-nc-nd|pd|cr|MIT)$/',
'dynamicDependencies' => array(
'machineName' => '/^[\w0-9\-\.]{1,255}$/i',
'majorVersion' => '/^[0-9]{1,5}$/',
'minorVersion' => '/^[0-9]{1,5}$/',
),
'w' => '/^[0-9]{1,4}$/',
'h' => '/^[0-9]{1,4}$/',
'metaKeywords' => '/^.{1,}$/',
'metaDescription' => '/^.{1,}$/k',
);
// Schemas used to validate the library files
private $libraryRequired = array(
'title' => '/^.{1,255}$/',
'majorVersion' => '/^[0-9]{1,5}$/',
'minorVersion' => '/^[0-9]{1,5}$/',
'patchVersion' => '/^[0-9]{1,5}$/',
'machineName' => '/^[\w0-9\-\.]{1,255}$/i',
'runnable' => '/^(0|1)$/',
);
private $libraryOptional = array(
'author' => '/^.{1,255}$/',
'license' => '/^(cc-by|cc-by-sa|cc-by-nd|cc-by-nc|cc-by-nc-sa|cc-by-nc-nd|pd|cr|MIT)$/',
'description' => '/^.{1,}$/',
'dynamicDependencies' => array(
'machineName' => '/^[\w0-9\-\.]{1,255}$/i',
'majorVersion' => '/^[0-9]{1,5}$/',
'minorVersion' => '/^[0-9]{1,5}$/',
),
'preloadedDependencies' => array(
'machineName' => '/^[\w0-9\-\.]{1,255}$/i',
'majorVersion' => '/^[0-9]{1,5}$/',
'minorVersion' => '/^[0-9]{1,5}$/',
),
'editorDependencies' => array(
'machineName' => '/^[\w0-9\-\.]{1,255}$/i',
'majorVersion' => '/^[0-9]{1,5}$/',
'minorVersion' => '/^[0-9]{1,5}$/',
),
'preloadedJs' => array(
'path' => '/^((\\\|\/)?[a-z_\-\s0-9\.]+)+\.js$/i',
),
'preloadedCss' => array(
'path' => '/^((\\\|\/)?[a-z_\-\s0-9\.]+)+\.css$/i',
),
'dropLibraryCss' => array(
'machineName' => '/^[\w0-9\-\.]{1,255}$/i',
),
'w' => '/^[0-9]{1,4}$/',
'h' => '/^[0-9]{1,4}$/',
'embedTypes' => array('iframe', 'div'),
'fullscreen' => '/^(0|1)$/',
);
/**
* Constructor for the H5PValidator
*
* @param object $H5PFramework
* The frameworks implementation of the H5PFrameworkInterface
*/
public function __construct($H5PFramework, $H5PCore) {
$this->h5pF = $H5PFramework;
$this->h5pC = $H5PCore;
}
/**
* Validates a .h5p file
*
* @return boolean
* TRUE if the .h5p file is valid
*/
public function isValidPackage() {
// Create a temporary dir to extract package in.
$tmpDir = $this->h5pF->getUploadedH5pFolderPath();
$tmp_path = $this->h5pF->getUploadedH5pPath();
$valid = TRUE;
// Extract and then remove the package file.
$zip = new ZipArchive;
if ($zip->open($tmp_path) === true) {
$zip->extractTo($tmpDir);
$zip->close();
}
else {
$this->h5pF->setErrorMessage($this->h5pF->t('The file you uploaded is not a valid HTML5 Package.'));
$this->h5pC->delTree($tmpDir);
return;
}
unlink($tmp_path);
// Process content and libraries
$libraries = array();
$files = scandir($tmpDir);
$mainH5pData;
$libraryJsonData;
$mainH5pExists = $imageExists = $contentExists = FALSE;
foreach ($files as $file) {
if (in_array(substr($file, 0, 1), array('.', '_'))) {
continue;
}
$filePath = $tmpDir . DIRECTORY_SEPARATOR . $file;
// Check for h5p.json file.
if (strtolower($file) == 'h5p.json') {
$mainH5pData = $this->getJsonData($filePath);
if ($mainH5pData === FALSE) {
$valid = FALSE;
$this->h5pF->setErrorMessage($this->h5pF->t('Could not find or parse the main h5p.json file'));
}
else {
$validH5p = $this->isValidH5pData($mainH5pData, $file, $this->h5pRequired, $this->h5pOptional);
if ($validH5p) {
$mainH5pExists = TRUE;
}
else {
$valid = FALSE;
$this->h5pF->setErrorMessage($this->h5pF->t('Could not find or parse the main h5p.json file'));
}
}
}
// Check for h5p.jpg?
elseif (strtolower($file) == 'h5p.jpg') {
$imageExists = TRUE;
}
// Content directory holds content.
elseif ($file == 'content') {
if (!is_dir($filePath)) {
$this->h5pF->setErrorMessage($this->h5pF->t('Invalid content folder'));
$valid = FALSE;
continue;
}
$contentJsonData = $this->getJsonData($filePath . DIRECTORY_SEPARATOR . 'content.json');
if ($contentJsonData === FALSE) {
$this->h5pF->setErrorMessage($this->h5pF->t('Could not find or parse the content.json file'));
$valid = FALSE;
continue;
}
else {
$contentExists = TRUE;
// In the future we might let the librarys provide validation functions for content.json
}
}
// The rest should be library folders
else {
if (!is_dir($filePath)) {
// Ignore this. Probably a file that shouldn't have been included.
continue;
}
$libraryH5PData = $this->getLibraryData($file, $filePath, $tmpDir);
if ($libraryH5PData) {
$libraries[$file] = $libraryH5PData;
}
else {
$valid = FALSE;
}
}
}
if (!$contentExists) {
$this->h5pF->setErrorMessage($this->h5pF->t('A valid content folder is missing'));
$valid = FALSE;
}
if (!$mainH5pExists) {
$this->h5pF->setErrorMessage($this->h5pF->t('A valid main h5p.json file is missing'));
$valid = FALSE;
}
if ($valid) {
$this->h5pC->librariesJsonData = $libraries;
$this->h5pC->mainJsonData = $mainH5pData;
$this->h5pC->contentJsonData = $contentJsonData;
$libraries['mainH5pData'] = $mainH5pData; // Check for the dependencies in h5p.json as well as in the libraries
$missingLibraries = $this->getMissingLibraries($libraries);
foreach ($missingLibraries as $missing) {
if ($this->h5pF->getLibraryId($missing['machineName'], $missing['majorVersion'], $missing['minorVersion'])) {
unset($missingLibraries[$missing['machineName']]);
}
}
if (!empty($missingLibraries)) {
foreach ($missingLibraries as $library) {
$this->h5pF->setErrorMessage($this->h5pF->t('Missing required library @library', array('@library' => $this->h5pC->libraryToString($library))));
}
}
$valid = empty($missingLibraries) && $valid;
}
if (!$valid) {
$this->h5pC->delTree($tmpDir);
}
return $valid;
}
/**
* Validates a H5P library
*
* @param string $file
* Name of the library folder
* @param string $filePath
* Path to the library folder
* @param string $tmpDir
* Path to the temporary upload directory
* @return object|boolean
* H5P data from library.json and semantics if the library is valid
* FALSE if the library isn't valid
*/
public function getLibraryData($file, $filePath, $tmpDir) {
if (preg_match('/^[\w0-9\-\.]{1,255}$/i', $file) === 0) {
$this->h5pF->setErrorMessage($this->h5pF->t('Invalid library name: %name', array('%name' => $file)));
return FALSE;
}
$h5pData = $this->getJsonData($filePath . DIRECTORY_SEPARATOR . 'library.json');
if ($h5pData === FALSE) {
$this->h5pF->setErrorMessage($this->h5pF->t('Could not find library.json file with valid json format for library %name', array('%name' => $file)));
return FALSE;
}
// validate json if a semantics file is provided
$semanticsPath = $filePath . DIRECTORY_SEPARATOR . 'semantics.json';
if (file_exists($semanticsPath)) {
$semantics = $this->getJsonData($semanticsPath, TRUE);
if ($semantics === FALSE) {
$this->h5pF->setErrorMessage($this->h5pF->t('Invalid semantics.json file has been included in the library %name', array('%name' => $file)));
return FALSE;
}
else {
$h5pData['semantics'] = $semantics;
}
}
// validate language folder if it exists
$languagePath = $filePath . DIRECTORY_SEPARATOR . 'language';
if (is_dir($languagePath)) {
$languageFiles = scandir($languagePath);
foreach ($languageFiles as $languageFile) {
if (in_array($languageFile, array('.', '..'))) {
continue;
}
if (preg_match('/^(-?[a-z]+){1,7}\.json$/i', $languageFile) === 0) {
$this->h5pF->setErrorMessage($this->h5pF->t('Invalid language file %file in library %library', array('%file' => $languageFile, '%library' => $file)));
return FALSE;
}
$languageJson = $this->getJsonData($languagePath . DIRECTORY_SEPARATOR . $languageFile, TRUE);
if ($languageJson === FALSE) {
$this->h5pF->setErrorMessage($this->h5pF->t('Invalid language file %languageFile has been included in the library %name', array('%languageFile' => $languageFile, '%name' => $file)));
return FALSE;
}
$parts = explode('.', $languageFile); // $parts[0] is the language code
$h5pData['language'][$parts[0]] = $languageJson;
}
}
$validLibrary = $this->isValidH5pData($h5pData, $file, $this->libraryRequired, $this->libraryOptional);
if (isset($h5pData['preloadedJs'])) {
$validLibrary = $this->isExistingFiles($h5pData['preloadedJs'], $tmpDir, $file) && $validLibrary;
}
if (isset($h5pData['preloadedCss'])) {
$validLibrary = $this->isExistingFiles($h5pData['preloadedCss'], $tmpDir, $file) && $validLibrary;
}
if ($validLibrary) {
return $h5pData;
}
else {
return FALSE;
}
}
/**
* Use the dependency declarations to find any missing libraries
*
* @param array $libraries
* A multidimensional array of libraries keyed with machineName first and majorVersion second
* @return array
* A list of libraries that are missing keyed with machineName and holds objects with
* machineName, majorVersion and minorVersion properties
*/
private function getMissingLibraries($libraries) {
$missing = array();
foreach ($libraries as $library) {
if (isset($library['preloadedDependencies'])) {
$missing = array_merge($missing, $this->getMissingDependencies($library['preloadedDependencies'], $libraries));
}
if (isset($library['dynamicDependencies'])) {
$missing = array_merge($missing, $this->getMissingDependencies($library['dynamicDependencies'], $libraries));
}
if (isset($library['editorDependencies'])) {
$missing = array_merge($missing, $this->getMissingDependencies($library['editorDependencies'], $libraries));
}
}
return $missing;
}
/**
* Helper function for getMissingLibraries, searches for dependency required libraries in
* the provided list of libraries
*
* @param array $dependencies
* A list of objects with machineName, majorVersion and minorVersion properties
* @param array $libraries
* An array of libraries keyed with machineName
* @return
* A list of libraries that are missing keyed with machineName and holds objects with
* machineName, majorVersion and minorVersion properties
*/
private function getMissingDependencies($dependencies, $libraries) {
$missing = array();
foreach ($dependencies as $dependency) {
if (isset($libraries[$dependency['machineName']])) {
if (!$this->h5pC->isSameVersion($libraries[$dependency['machineName']], $dependency)) {
$missing[$dependency['machineName']] = $dependency;
}
}
else {
$missing[$dependency['machineName']] = $dependency;
}
}
return $missing;
}
/**
* Figure out if the provided file paths exists
*
* Triggers error messages if files doesn't exist
*
* @param array $files
* List of file paths relative to $tmpDir
* @param string $tmpDir
* Path to the directory where the $files are stored.
* @param string $library
* Name of the library we are processing
* @return boolean
* TRUE if all the files excists
*/
private function isExistingFiles($files, $tmpDir, $library) {
foreach ($files as $file) {
$path = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $file['path']);
if (!file_exists($tmpDir . DIRECTORY_SEPARATOR . $library . DIRECTORY_SEPARATOR . $path)) {
$this->h5pF->setErrorMessage($this->h5pF->t('The file "%file" is missing from library: "%name"', array('%file' => $path, '%name' => $library)));
return FALSE;
}
}
return TRUE;
}
/**
* Validates h5p.json and library.json data
*
* Error messages are triggered if the data isn't valid
*
* @param array $h5pData
* h5p data
* @param string $library_name
* Name of the library we are processing
* @param array $required
* Validation pattern for required properties
* @param array $optional
* Validation pattern for optional properties
* @return boolean
* TRUE if the $h5pData is valid
*/
private function isValidH5pData($h5pData, $library_name, $required, $optional) {
$valid = $this->isValidRequiredH5pData($h5pData, $required, $library_name);
$valid = $this->isValidOptionalH5pData($h5pData, $optional, $library_name) && $valid;
return $valid;
}
/**
* Helper function for isValidH5pData
*
* Validates the optional part of the h5pData
*
* Triggers error messages
*
* @param array $h5pData
* h5p data
* @param array $requirements
* Validation pattern
* @param string $library_name
* Name of the library we are processing
* @return boolean
* TRUE if the optional part of the $h5pData is valid
*/
private function isValidOptionalH5pData($h5pData, $requirements, $library_name) {
$valid = TRUE;
foreach ($h5pData as $key => $value) {
if (isset($requirements[$key])) {
$valid = $this->isValidRequirement($value, $requirements[$key], $library_name, $key) && $valid;
}
// Else: ignore, a package can have parameters that this library doesn't care about, but that library
// specific implementations does care about...
}
return $valid;
}
/**
* Va(lidate a requirement given as regexp or an array of requirements
*
* @param mixed $h5pData
* The data to be validated
* @param mixed $requirement
* The requirement the data is to be validated against, regexp or array of requirements
* @param string $library_name
* Name of the library we are validating(used in error messages)
* @param string $property_name
* Name of the property we are validating(used in error messages)
* @return boolean
* TRUE if valid, FALSE if invalid
*/
private function isValidRequirement($h5pData, $requirement, $library_name, $property_name) {
$valid = TRUE;
if (is_string($requirement)) {
if ($requirement == 'boolean') {
if (!is_bool($h5pData)) {
$this->h5pF->setErrorMessage($this->h5pF->t("Invalid data provided for %property in %library. Boolean expected.", array('%property' => $property_name, '%library' => $library_name)));
$valid = FALSE;
}
}
else {
// The requirement is a regexp, match it against the data
if (is_string($h5pData) || is_int($h5pData)) {
if (preg_match($requirement, $h5pData) === 0) {
$this->h5pF->setErrorMessage($this->h5pF->t("Invalid data provided for %property in %library", array('%property' => $property_name, '%library' => $library_name)));
$valid = FALSE;
}
}
else {
$this->h5pF->setErrorMessage($this->h5pF->t("Invalid data provided for %property in %library", array('%property' => $property_name, '%library' => $library_name)));
$valid = FALSE;
}
}
}
elseif (is_array($requirement)) {
// We have sub requirements
if (is_array($h5pData)) {
if (is_array(current($h5pData))) {
foreach ($h5pData as $sub_h5pData) {
$valid = $this->isValidRequiredH5pData($sub_h5pData, $requirement, $library_name) && $valid;
}
}
else {
$valid = $this->isValidRequiredH5pData($h5pData, $requirement, $library_name) && $valid;
}
}
else {
$this->h5pF->setErrorMessage($this->h5pF->t("Invalid data provided for %property in %library", array('%property' => $property_name, '%library' => $library_name)));
$valid = FALSE;
}
}
else {
$this->h5pF->setErrorMessage($this->h5pF->t("Can't read the property %property in %library", array('%property' => $property_name, '%library' => $library_name)));
$valid = FALSE;
}
return $valid;
}
/**
* Validates the required h5p data in libraray.json and h5p.json
*
* @param mixed $h5pData
* Data to be validated
* @param array $requirements
* Array with regexp to validate the data against
* @param string $library_name
* Name of the library we are validating (used in error messages)
* @return boolean
* TRUE if all the required data exists and is valid, FALSE otherwise
*/
private function isValidRequiredH5pData($h5pData, $requirements, $library_name) {
$valid = TRUE;
foreach ($requirements as $required => $requirement) {
if (is_int($required)) {
// We have an array of allowed options
return $this->isValidH5pDataOptions($h5pData, $requirements, $library_name);
}
if (isset($h5pData[$required])) {
$valid = $this->isValidRequirement($h5pData[$required], $requirement, $library_name, $required) && $valid;
}
else {
$this->h5pF->setErrorMessage($this->h5pF->t('The required property %property is missing from %library', array('%property' => $required, '%library' => $library_name)));
$valid = FALSE;
}
}
return $valid;
}
/**
* Validates h5p data against a set of allowed values(options)
*
* @param array $selected
* The option(s) that has been specified
* @param array $allowed
* The allowed options
* @param string $library_name
* Name of the library we are validating (used in error messages)
* @return boolean
* TRUE if the specified data is valid, FALSE otherwise
*/
private function isValidH5pDataOptions($selected, $allowed, $library_name) {
$valid = TRUE;
foreach ($selected as $value) {
if (!in_array($value, $allowed)) {
$this->h5pF->setErrorMessage($this->h5pF->t('Illegal option %option in %library', array('%option' => $value, '%library' => $library_name)));
$valid = FALSE;
}
}
return $valid;
}
/**
* Fetch json data from file
*
* @param string $filePath
* Path to the file holding the json string
* @param boolean $return_as_string
* If true the json data will be decoded in order to validate it, but will be
* returned as string
* @return mixed
* FALSE if the file can't be read or the contents can't be decoded
* string if the $return as string parameter is set
* array otherwise
*/
private function getJsonData($filePath, $return_as_string = FALSE) {
$json = file_get_contents($filePath);
if (!$json) {
return FALSE;
}
$jsonData = json_decode($json, TRUE);
if (!$jsonData) {
return FALSE;
}
return $return_as_string ? $json : $jsonData;
}
/**
* Helper function that copies an array
*
* @param array $array
* The array to be copied
* @return array
* Copy of $array. All objects are cloned
*/
private function arrayCopy(array $array) {
$result = array();
foreach ($array as $key => $val) {
if (is_array($val)) {
$result[$key] = arrayCopy($val);
}
elseif (is_object($val)) {
$result[$key] = clone $val;
}
else {
$result[$key] = $val;
}
}
return $result;
}
}
/**
* This class is used for saving H5P files
*/
class H5PStorage {
public $h5pF;
public $h5pC;
/**
* Constructor for the H5PStorage
*
* @param object $H5PFramework
* The frameworks implementation of the H5PFrameworkInterface
*/
public function __construct($H5PFramework, $H5PCore) {
$this->h5pF = $H5PFramework;
$this->h5pC = $H5PCore;
}
/**
* Saves a H5P file
*
* @param int $contentId
* The id of the content we are saving
* @param int $contentMainId
* The main id for the content we are saving. This is used if the framework
* we're integrating with uses content id's and version id's
*/
public function savePackage($contentId, $contentMainId = NULL) {
// Save the libraries we processed during validation
foreach ($this->h5pC->librariesJsonData as $key => &$library) {
$libraryId = $this->h5pF->getLibraryId($key, $library['majorVersion'], $library['minorVersion']);
$library['saveDependencies'] = TRUE;
if (!$libraryId) {
$new = TRUE;
}
elseif ($this->h5pF->isPatchedLibrary($library)) {
$new = FALSE;
$library['libraryId'] = $libraryId;
}
else {
$library['libraryId'] = $libraryId;
// We already have the same or a newer version of this library
$library['saveDependencies'] = FALSE;
continue;
}
$this->h5pF->saveLibraryData($library, $new);
$current_path = $this->h5pF->getUploadedH5pFolderPath() . DIRECTORY_SEPARATOR . $key;
$destination_path = $this->h5pF->getH5pPath() . DIRECTORY_SEPARATOR . 'libraries' . DIRECTORY_SEPARATOR . $this->h5pC->libraryToString($library, TRUE);
$this->h5pC->delTree($destination_path);
rename($current_path, $destination_path);
}
foreach ($this->h5pC->librariesJsonData as $key => &$library) {
if ($library['saveDependencies']) {
$this->h5pF->deleteLibraryDependencies($library['libraryId']);
if (isset($library['preloadedDependencies'])) {
$this->h5pF->saveLibraryDependencies($library['libraryId'], $library['preloadedDependencies'], 'preloaded');
}
if (isset($library['dynamicDependencies'])) {
$this->h5pF->saveLibraryDependencies($library['libraryId'], $library['dynamicDependencies'], 'dynamic');
}
if (isset($library['editorDependencies'])) {
$this->h5pF->saveLibraryDependencies($library['libraryId'], $library['editorDependencies'], 'editor');
}
}
}
// Move the content folder
$current_path = $this->h5pF->getUploadedH5pFolderPath() . DIRECTORY_SEPARATOR . 'content';
$destination_path = $this->h5pF->getH5pPath() . DIRECTORY_SEPARATOR . 'content' . DIRECTORY_SEPARATOR . $contentId;
rename($current_path, $destination_path);
// Save what libraries is beeing used by this package/content
$librariesInUse = array();
$this->getLibraryUsage($librariesInUse, $this->h5pC->mainJsonData);
$this->h5pF->saveLibraryUsage($contentId, $librariesInUse);
$this->h5pC->delTree($this->h5pF->getUploadedH5pFolderPath());
// Save the data in content.json
$contentJson = file_get_contents($destination_path . DIRECTORY_SEPARATOR . 'content.json');
$mainLibraryId = $librariesInUse[$this->h5pC->mainJsonData['mainLibrary']]['library']['libraryId'];
$this->h5pF->saveContentData($contentId, $contentJson, $this->h5pC->mainJsonData, $mainLibraryId, $contentMainId);
}
/**
* Delete an H5P package
*
* @param int $contentId
* The content id
*/
public function deletePackage($contentId) {
$this->h5pC->delTree($this->h5pF->getH5pPath() . DIRECTORY_SEPARATOR . 'content' . DIRECTORY_SEPARATOR . $contentId);
$this->h5pF->deleteContentData($contentId);
}
/**
* Update an H5P package
*
* @param int $contentId
* The content id
* @param int $contentMainId
* The content main id (used by frameworks supporting revisioning)
*/
public function updatePackage($contentId, $contentMainId = NULL) {
$this->deletePackage($contentId);
$this->savePackage($contentId, $contentMainId);
}
/**
* Copy/clone an H5P package
*
* May for instance be used if the content is beeing revisioned without
* uploading a new H5P package
*
* @param int $contentId
* The new content id
* @param int $copyFromId
* The content id of the content that should be cloned
* @param int $contentMainId
* The main id of the new content (used in frameworks that support revisioning)
*/
public function copyPackage($contentId, $copyFromId, $contentMainId = NULL) {
$source_path = $this->h5pF->getH5pPath() . DIRECTORY_SEPARATOR . 'content' . DIRECTORY_SEPARATOR . $copyFromId;
$destination_path = $this->h5pF->getH5pPath() . DIRECTORY_SEPARATOR . 'content' . DIRECTORY_SEPARATOR . $contentId;
$this->h5pC->copyTree($source_path, $destination_path);
$this->h5pF->copyLibraryUsage($contentId, $copyFromId, $contentMainId);
}
/**
* Identify what libraries are beeing used taking all dependencies into account
*
* @param array $librariesInUse
* List of libraries in use, indexed by machineName
* @param array $jsonData
* library.json og h5p.json data holding dependency information
* @param boolean $dynamic
* Whether or not the current library is a dynamic dependency
*/
public function getLibraryUsage(&$librariesInUse, $jsonData, $dynamic = FALSE) {
if (isset($jsonData['preloadedDependencies'])) {
foreach ($jsonData['preloadedDependencies'] as $preloadedDependency) {
$library = $this->h5pF->loadLibrary($preloadedDependency['machineName'], $preloadedDependency['majorVersion'], $preloadedDependency['minorVersion']);
$librariesInUse[$preloadedDependency['machineName']] = array(
'library' => $library,
'preloaded' => $dynamic ? 0 : 1,
);
$this->getLibraryUsage($librariesInUse, $library, $dynamic);
}
}
if (isset($jsonData['dynamicDependencies'])) {
foreach ($jsonData['dynamicDependencies'] as $dynamicDependency) {
if (!isset($librariesInUse[$dynamicDependency['machineName']])) {
$library = $this->h5pF->loadLibrary($dynamicDependency['machineName'], $dynamicDependency['majorVersion'], $dynamicDependency['minorVersion']);
$librariesInUse[$dynamicDependency['machineName']] = array(
'library' => $library,
'preloaded' => 0,
);
}
$this->getLibraryUsage($librariesInUse, $library, TRUE);
}
}
}
}
/**
* Functions and storage shared by the other H5P classes
*/
class H5PCore {
public static $styles = array(
'styles/h5p.css',
);
public static $scripts = array(
'js/jquery.js',
'js/h5p.js',
'js/flowplayer-3.2.12.min.js',
);
public $h5pF;
public $librariesJsonData;
public $contentJsonData;
public $mainJsonData;
/**
* Constructor for the H5PCore
*
* @param object $H5PFramework
* The frameworks implementation of the H5PFrameworkInterface
*/
public function __construct($H5PFramework) {
$this->h5pF = $H5PFramework;
}
/**
* Check if a library is of the version we're looking for
*
* Same verision means that the majorVersion and minorVersion is the same
*
* @param array $library
* Data from library.json
* @param array $dependency
* Definition of what library we're looking for
* @return boolean
* TRUE if the library is the same version as the dependency
* FALSE otherwise
*/
public function isSameVersion($library, $dependency) {
if ($library['majorVersion'] != $dependency['majorVersion']) {
return FALSE;
}
if ($library['minorVersion'] != $dependency['minorVersion']) {
return FALSE;
}
return TRUE;
}
/**
* Recursive function for removing directories.
*
* @param string $dir
* Path to the directory we'll be deleting
* @return boolean
* Indicates if the directory existed.
*/
public function delTree($dir) {
if (!is_dir($dir)) {
return;
}
$files = array_diff(scandir($dir), array('.','..'));
foreach ($files as $file) {
(is_dir("$dir/$file")) ? $this->delTree("$dir/$file") : unlink("$dir/$file");
}
return rmdir($dir);
}
/**
* Recursive function for copying directories.
*
* @param string $source
* Path to the directory we'll be copying
* @return boolean
* Indicates if the directory existed.
*/
public function copyTree($source, $destination) {
$dir = opendir($source);
@mkdir($destination);
while (false !== ($file = readdir($dir))) {
if (($file != '.') && ($file != '..')) {
if (is_dir($source . '/' . $file)) {
$this->copyTree($source . '/' . $file, $destination . '/' . $file);
}
else {
copy($source . '/' . $file,$destination . '/' . $file);
}
}
}
closedir($dir);
}
/**
* Writes library data as string on the form {machineName} {majorVersion}.{minorVersion}
*
* @param array $library
* With keys machineName, majorVersion and minorVersion
* @return string
* On the form {machineName} {majorVersion}.{minorVersion}
*/
public function libraryToString($library, $folderName = FALSE) {
return $library['machineName'] . ($folderName ? '-' : ' ') . $library['majorVersion'] . '.' . $library['minorVersion'];
}
}
?>