970 lines
32 KiB
PHP
970 lines
32 KiB
PHP
<?php
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/**
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* Interface defining functions the h5p library needs the framework to implement
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*/
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interface H5PFrameworkInterface {
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/**
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* Show the user an error message
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*
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* @param string $message
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* The error message
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*/
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public function setErrorMessage($message);
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/**
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* Show the user an information message
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*
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* @param string $message
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* The error message
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*/
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public function setInfoMessage($message);
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/**
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* Translation function
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*
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* @param string $message
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* The english string to be translated.
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* @param type $replacements
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* An associative array of replacements to make after translation. Incidences
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* of any key in this array are replaced with the corresponding value. Based
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* on the first character of the key, the value is escaped and/or themed:
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* - !variable: inserted as is
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* - @variable: escape plain text to HTML
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* - %variable: escape text and theme as a placeholder for user-submitted
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* content
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* @return string Translated string
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*/
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public function t($message, $replacements = array());
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/**
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* Get the Path to the last uploaded h5p
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*
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* @return string Path to the folder where the last uploaded h5p for this session is located.
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*/
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public function getUploadedH5pFolderPath();
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/**
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* @return string Path to the folder where all h5p files are stored
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*/
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public function getH5pPath();
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/**
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* Get the path to the last uploaded h5p file
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*
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* @return string Path to the last uploaded h5p
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*/
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public function getUploadedH5pPath();
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/**
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* Get id to an excisting library
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*
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* @param string $machineName
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* The librarys machine name
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* @param int $majorVersion
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* The librarys major version
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* @param int $minorVersion
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* The librarys minor version
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* @return int
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* The id of the specified library or FALSE
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*/
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public function getLibraryId($machineName, $majorVersion, $minorVersion);
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/**
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* Is the library a patched version of an excisting library?
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*
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* @param object $library
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* The library data for a library we are checking
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* @return boolean
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* TRUE if the library is a patched version of an excisting library
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* FALSE otherwise
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*/
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public function isPatchedLibrary($library);
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/**
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* Store data about a library
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*
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* Also fills in the libraryId in the libraryData object if the object is new
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*
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* @param object $libraryData
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* Object holding the information that is to be stored
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*/
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public function saveLibraryData(&$libraryData);
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/**
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* Stores contentData
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*
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* @param int $contentId
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* Framework specific id identifying the content
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* @param string $contentJson
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* The content data that is to be stored
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* @param array $mainJsonData
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* The data extracted from the h5p.json file
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* @param int $contentMainId
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* Any contentMainId defined by the framework, for instance to support revisioning
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*/
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public function saveContentData($contentId, $contentJson, $mainJsonData, $mainLibraryId, $contentMainId = NULL);
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/**
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* Save what libraries a library is dependending on
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*
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* @param int $libraryId
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* Library Id for the library we're saving dependencies for
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* @param array $dependencies
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* List of dependencies in the format used in library.json
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* @param string $dependency_type
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* What type of dependency this is, for instance it might be an editor dependency
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*/
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public function saveLibraryDependencies($libraryId, $dependencies, $dependency_type);
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/**
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* Copies library usage
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*
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* @param int $contentId
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* Framework specific id identifying the content
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* @param int $copyFromId
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* Framework specific id identifying the content to be copied
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* @param int $contentMainId
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* Framework specific main id for the content, typically used in frameworks
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* That supports versioning. (In this case the content id will typically be
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* the version id, and the contentMainId will be the frameworks content id
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*/
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public function copyLibraryUsage($contentId, $copyFromId, $contentMainId = NULL);
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/**
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* Deletes content data
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*
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* @param int $contentId
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* Framework specific id identifying the content
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*/
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public function deleteContentData($contentId);
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/**
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* Delete what libraries a content item is using
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*
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* @param int $contentId
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* Content Id of the content we'll be deleting library usage for
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*/
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public function deleteLibraryUsage($contentId);
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/**
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* Saves what libraries the content uses
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*
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* @param int $contentId
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* Framework specific id identifying the content
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* @param array $librariesInUse
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* List of libraries the content uses. Libraries consist of arrays with:
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* - libraryId stored in $librariesInUse[<place>]['library']['libraryId']
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* - libraryId stored in $librariesInUse[<place>]['preloaded']
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*/
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public function saveLibraryUsage($contentId, $librariesInUse);
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/**
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* Loads a library
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*
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* @param string $machineName
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* @param int $majorVersion
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* @param int $minorVersion
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* @return array|FALSE
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* Array representing the library with dependency descriptions
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* FALSE if the library doesn't exist
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*/
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public function loadLibrary($machineName, $majorVersion, $minorVersion);
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}
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/**
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* This class is used for validating H5P files
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*/
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class H5PValidator {
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public $h5pF;
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public $h5pC;
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// Schemas used to validate the h5p files
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private $h5pRequired = array(
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'title' => '/^.{1,255}$/',
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'language' => '/^[a-z]{1,5}$/',
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'preloadedDependencies' => array(
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'machineName' => '/^[\w0-9\-\.]{1,255}$/i',
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'majorVersion' => '/^[0-9]{1,5}$/',
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'minorVersion' => '/^[0-9]{1,5}$/',
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),
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'mainLibrary' => '/^[$a-z_][0-9a-z_\.$]{1,254}$/i',
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'embedTypes' => array('iframe', 'div'),
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);
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private $h5pOptional = array(
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'contentType' => '/^.{1,255}$/',
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'description' => '/^.{1,}$/',
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'author' => '/^.{1,255}$/',
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'license' => '/^(cc-by|cc-by-sa|cc-by-nd|cc-by-nc|cc-by-nc-sa|cc-by-nc-nd|pd|cr|MIT)$/',
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'dynamicDependencies' => array(
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'machineName' => '/^[\w0-9\-\.]{1,255}$/i',
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'majorVersion' => '/^[0-9]{1,5}$/',
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'minorVersion' => '/^[0-9]{1,5}$/',
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),
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'externalResources' => array(
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'machineName' => '/^[\w0-9\-\.]{1,255}$/i',
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'majorVersion' => '/^[0-9]{1,5}$/',
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'minorVersion' => '/^[0-9]{1,5}$/',
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'url' => '/^http:\/\/[a-z_\-\.0-9]+\.[a-z]{2, 10}$/i',
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'type' => '/^(css|js)$/',
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),
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'w' => '/^[0-9]{1,4}$/',
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'h' => '/^[0-9]{1,4}$/',
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'metaKeywords' => '/^.{1,}$/',
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'metaDescription' => '/^.{1,}$/k',
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);
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// Schemas used to validate the library files
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private $libraryRequired = array(
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'title' => '/^.{1,255}$/',
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'majorVersion' => '/^[0-9]{1,5}$/',
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'minorVersion' => '/^[0-9]{1,5}$/',
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'patchVersion' => '/^[0-9]{1,5}$/',
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'machineName' => '/^[\w0-9\-\.]{1,255}$/i',
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'runnable' => '/^(0|1)$/',
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);
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private $libraryOptional = array(
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'author' => '/^.{1,255}$/',
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'license' => '/^(cc-by|cc-by-sa|cc-by-nd|cc-by-nc|cc-by-nc-sa|cc-by-nc-nd|pd|cr|MIT)$/',
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'description' => '/^.{1,}$/',
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'dynamicDependencies' => array(
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'machineName' => '/^[\w0-9\-\.]{1,255}$/i',
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'majorVersion' => '/^[0-9]{1,5}$/',
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'minorVersion' => '/^[0-9]{1,5}$/',
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),
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'preloadedDependencies' => array(
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'machineName' => '/^[\w0-9\-\.]{1,255}$/i',
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'majorVersion' => '/^[0-9]{1,5}$/',
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'minorVersion' => '/^[0-9]{1,5}$/',
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),
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'editorDependencies' => array(
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'machineName' => '/^[\w0-9\-\.]{1,255}$/i',
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'majorVersion' => '/^[0-9]{1,5}$/',
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'minorVersion' => '/^[0-9]{1,5}$/',
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),
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'externalResources' => array(
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'machineName' => '/^[\w0-9\-\.]{1,255}$/i',
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'majorVersion' => '/^[0-9]{1,5}$/',
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'minorVersion' => '/^[0-9]{1,5}$/',
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'url' => '/^http:\/\/[a-z_\-\.0-9]+\.[a-z]{2, 10}$/i',
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'type' => '/^(css|js)$/',
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),
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'preloadedJs' => array(
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'path' => '/^((\\\|\/)?[a-z_\-\s0-9]+)+\.js$/i',
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),
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'preloadedCss' => array(
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'path' => '/^((\\\|\/)?[a-z_\-\s0-9]+)+\.css$/i',
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),
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'dropLibraryCss' => array(
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'machineName' => '/^[\w0-9\-\.]{1,255}$/i',
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),
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'w' => '/^[0-9]{1,4}$/',
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'h' => '/^[0-9]{1,4}$/',
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'embedTypes' => array('iframe', 'div'),
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);
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/**
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* Constructor for the H5PValidator
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*
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* @param object $H5PFramework
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* The frameworks implementation of the H5PFrameworkInterface
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*/
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public function __construct($H5PFramework, $H5PCore) {
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$this->h5pF = $H5PFramework;
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$this->h5pC = $H5PCore;
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}
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/**
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* Validates a .h5p file
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*
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* @return boolean
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* TRUE if the .h5p file is valid
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*/
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public function isValidPackage() {
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// Create a temporary dir to extract package in.
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$tmp_dir = $this->h5pF->getUploadedH5pFolderPath();
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$tmp_path = $this->h5pF->getUploadedH5pPath();
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$valid = TRUE;
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// Extract and then remove the package file.
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$zip = new ZipArchive;
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if ($zip->open($tmp_path) === true) {
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$zip->extractTo($tmp_dir);
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$zip->close();
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}
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else {
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$this->h5pF->setErrorMessage($this->h5pF->t('The file you uploaded is not a valid HTML5 Package.'));
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$this->h5pC->delTree($tmp_dir);
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return;
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}
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unlink($tmp_path);
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// Process content and libraries
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$libraries = array();
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$files = scandir($tmp_dir);
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$mainH5pData;
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$libraryJsonData;
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$mainH5pExists = $imageExists = $contentExists = FALSE;
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foreach ($files as $file) {
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if (in_array(substr($file, 0, 1), array('.', '_'))) {
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continue;
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}
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$file_path = $tmp_dir . DIRECTORY_SEPARATOR . $file;
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// Check for h5p.json file.
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if (strtolower($file) == 'h5p.json') {
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$mainH5pData = $this->getJsonData($file_path);
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if ($mainH5pData === FALSE) {
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$valid = FALSE;
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$this->h5pF->setErrorMessage($this->h5pF->t('Could not find or parse the main h5p.json file'));
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}
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else {
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$validH5p = $this->isValidH5pData($mainH5pData, $file, $this->h5pRequired, $this->h5pOptional);
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if ($validH5p) {
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$mainH5pExists = TRUE;
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}
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else {
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$valid = FALSE;
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$this->h5pF->setErrorMessage($this->h5pF->t('Could not find or parse the main h5p.json file'));
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}
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}
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}
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// Check for h5p.jpg?
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elseif (strtolower($file) == 'h5p.jpg') {
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$imageExists = TRUE;
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}
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// Content directory holds content.
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elseif ($file == 'content') {
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if (!is_dir($file_path)) {
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$this->h5pF->setErrorMessage($this->h5pF->t('Invalid content folder'));
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$valid = FALSE;
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continue;
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}
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$contentJsonData = $this->getJsonData($file_path . DIRECTORY_SEPARATOR . 'content.json');
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if ($contentJsonData === FALSE) {
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$this->h5pF->setErrorMessage($this->h5pF->t('Could not find or parse the content.json file'));
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$valid = FALSE;
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continue;
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}
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else {
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$contentExists = TRUE;
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// In the future we might let the librarys provide validation functions for content.json
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}
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}
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// The rest should be library folders
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else {
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if (!is_dir($file_path)) {
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// Ignore this. Probably a file that shouldn't have been included.
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continue;
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}
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if (preg_match('/^[\w0-9\-\.]{1,255}$/i', $file) === 0) {
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$this->h5pF->setErrorMessage($this->h5pF->t('Invalid library name: %name', array('%name' => $file)));
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$valid = FALSE;
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continue;
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}
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$h5pData = $this->getJsonData($file_path . DIRECTORY_SEPARATOR . 'library.json');
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if ($h5pData === FALSE) {
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$this->h5pF->setErrorMessage($this->h5pF->t('Could not find library.json file with valid json format for library %name', array('%name' => $file)));
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$valid = FALSE;
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continue;
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}
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// validate json if a semantics file is provided
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$semanticsPath = $file_path . DIRECTORY_SEPARATOR . 'semantics.json';
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if (file_exists($semanticsPath)) {
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$semantics = $this->getJsonData($semanticsPath, TRUE);
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if ($semantics === FALSE) {
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$this->h5pF->setErrorMessage($this->h5pF->t('Invalid semantics.json file has been included in the library %name', array('%name' => $file)));
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$valid = FALSE;
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continue;
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}
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else {
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$h5pData['semantics'] = $semantics;
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}
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}
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$validLibrary = $this->isValidH5pData($h5pData, $file, $this->libraryRequired, $this->libraryOptional);
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if (isset($h5pData['preloadedJs'])) {
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$validLibrary = $this->isExistingFiles($h5pData['preloadedJs'], $tmp_dir, $file) && $validLibrary;
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}
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if (isset($h5pData['preloadedCss'])) {
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$validLibrary = $this->isExistingFiles($h5pData['preloadedCss'], $tmp_dir, $file) && $validLibrary;
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}
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if ($validLibrary) {
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$libraries[$file] = $h5pData;
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}
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$valid = $validLibrary && $valid;
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}
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}
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if (!$contentExists) {
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$this->h5pF->setErrorMessage($this->h5pF->t('A valid content folder is missing'));
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$valid = FALSE;
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}
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if (!$mainH5pExists) {
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$this->h5pF->setErrorMessage($this->h5pF->t('A valid main h5p.json file is missing'));
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$valid = FALSE;
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}
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if ($valid) {
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$this->h5pC->librariesJsonData = $libraries;
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$this->h5pC->mainJsonData = $mainH5pData;
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$this->h5pC->contentJsonData = $contentJsonData;
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$libraries['mainH5pData'] = $mainH5pData;
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$missingLibraries = $this->getMissingLibraries($libraries);
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foreach ($missingLibraries as $missing) {
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if ($this->h5pF->getLibraryId($missing['machineName'], $missing['majorVersion'], $missing['minorVersion'])) {
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unset($missingLibraries[$missing['machineName']]);
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}
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}
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$valid = empty($missingLibraries) && $valid;
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}
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if (!$valid) {
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$this->h5pC->delTree($tmp_dir);
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}
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return $valid;
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}
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/**
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* Use the dependency declarations to find any missing libraries
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*
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* @param array $libraries
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* A multidimensional array of libraries keyed with machineName first and majorVersion second
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* @return array
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* A list of libraries that are missing keyed with machineName and holds objects with
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* machineName, majorVersion and minorVersion properties
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*/
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private function getMissingLibraries($libraries) {
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$missing = array();
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foreach ($libraries as $library) {
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if (isset($library['preloadedDependencies'])) {
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array_merge($missing, $this->getMissingDependencies($library['preloadedDependencies'], $libraries));
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}
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if (isset($library['dynamicDependencies'])) {
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array_merge($missing, $this->getMissingDependencies($library['dynamicDependencies'], $libraries));
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}
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if (isset($library['editorDependencies'])) {
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array_merge($missing, $this->getMissingDependencies($library['editorDependencies'], $libraries));
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}
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}
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return $missing;
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}
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/**
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* Helper function for getMissingLibraries, searches for dependency required libraries in
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* the provided list of libraries
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*
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* @param array $dependencies
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* A list of objects with machineName, majorVersion and minorVersion properties
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* @param array $libraries
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* An array of libraries keyed with machineName
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* @return
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* A list of libraries that are missing keyed with machineName and holds objects with
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* machineName, majorVersion and minorVersion properties
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*/
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private function getMissingDependencies($dependencies, $libraries) {
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$missing = array();
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foreach ($dependencies as $dependency) {
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if (isset($libraries[$dependency['machineName']])) {
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if (!$this->h5pC->isSameVersion($libraries[$dependency['machineName']], $dependency)) {
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$missing[$dependency['machineName']] = $dependency;
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}
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}
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else {
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$missing[$dependency['machineName']] = $dependency;
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}
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}
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return $missing;
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}
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/**
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* Figure out if the provided file paths exists
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*
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* Triggers error messages if files doesn't exist
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*
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* @param array $files
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* List of file paths relative to $tmp_dir
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* @param string $tmp_dir
|
|
* 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, $tmp_dir, $library) {
|
|
foreach ($files as $file) {
|
|
$path = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $file['path']);
|
|
if (!file_exists($tmp_dir . 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 $file_path
|
|
* 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 $return as string parameter is set
|
|
* array otherwise
|
|
*/
|
|
private function getJsonData($file_path, $return_as_string = FALSE) {
|
|
$json = file_get_contents($file_path);
|
|
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'], $library['minorVersion']);
|
|
if (!$libraryId) {
|
|
$new = TRUE;
|
|
}
|
|
elseif ($this->h5pF->isPatchedLibrary($library)) {
|
|
$new = FALSE;
|
|
$library['libraryId'] = $libraryId;
|
|
}
|
|
else {
|
|
// We already have the same or a newer version of this library
|
|
continue;
|
|
}
|
|
$this->h5pF->saveLibraryData($library, $new);
|
|
|
|
$current_path = $this->h5pF->getUploadedH5pFolderPath() . DIRECTORY_SEPARATOR . $key;
|
|
$destination_path = $this->h5pF->getH5pPath() . DIRECTORY_SEPARATOR . 'libraries' . DIRECTORY_SEPARATOR . $library['libraryId'];
|
|
$this->h5pC->delTree($destination_path);
|
|
rename($current_path, $destination_path);
|
|
}
|
|
// All libraries have been saved, we now save all the dependencies
|
|
foreach ($this->h5pC->librariesJsonData as $key => &$library) {
|
|
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 $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);
|
|
}
|
|
}
|
|
?>
|