mirror of
https://github.com/phpbb/phpbb.git
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374 lines
9.3 KiB
PHP
374 lines
9.3 KiB
PHP
<?php
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/**
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*
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* @package extension
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* @copyright (c) 2012 phpBB Group
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* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
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*
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*/
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namespace phpbb\extension;
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/**
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* @ignore
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*/
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if (!defined('IN_PHPBB'))
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{
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exit;
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}
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/**
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* The extension metadata manager validates and gets meta-data for extensions
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*
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* @package extension
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*/
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class metadata_manager
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{
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/**
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* phpBB Config instance
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* @var \phpbb\config\config
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*/
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protected $config;
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/**
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* phpBB Extension Manager
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* @var \phpbb\extension\manager
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*/
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protected $extension_manager;
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/**
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* phpBB Template instance
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* @var \phpbb\template\template
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*/
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protected $template;
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/**
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* phpBB root path
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* @var string
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*/
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protected $phpbb_root_path;
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/**
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* Name (including vendor) of the extension
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* @var string
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*/
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protected $ext_name;
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/**
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* Metadata from the composer.json file
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* @var array
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*/
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protected $metadata;
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/**
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* Link (including root path) to the metadata file
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* @var string
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*/
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protected $metadata_file;
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/**
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* Creates the metadata manager
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*
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* @param string $ext_name Name (including vendor) of the extension
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* @param \phpbb\config\config $config phpBB Config instance
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* @param \phpbb\extension\manager $extension_manager An instance of the phpBBb extension manager
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* @param \phpbb\template\template $template phpBB Template instance
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* @param string $phpbb_root_path Path to the phpbb includes directory.
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*/
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public function __construct($ext_name, \phpbb\config\config $config, \phpbb\extension\manager $extension_manager, \phpbb\template\template $template, $phpbb_root_path)
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{
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$this->config = $config;
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$this->extension_manager = $extension_manager;
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$this->template = $template;
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$this->phpbb_root_path = $phpbb_root_path;
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$this->ext_name = $ext_name;
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$this->metadata = array();
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$this->metadata_file = '';
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}
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/**
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* Processes and gets the metadata requested
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*
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* @param string $element All for all metadata that it has and is valid, otherwise specify which section you want by its shorthand term.
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* @return array Contains all of the requested metadata, throws an exception on failure
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*/
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public function get_metadata($element = 'all')
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{
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$this->set_metadata_file();
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// Fetch the metadata
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$this->fetch_metadata();
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// Clean the metadata
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$this->clean_metadata_array();
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switch ($element)
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{
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case 'all':
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default:
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// Validate the metadata
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if (!$this->validate())
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{
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return false;
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}
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return $this->metadata;
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break;
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case 'name':
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return ($this->validate('name')) ? $this->metadata['name'] : false;
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break;
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case 'display-name':
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if (isset($this->metadata['extra']['display-name']))
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{
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return $this->metadata['extra']['display-name'];
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}
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else
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{
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return ($this->validate('name')) ? $this->metadata['name'] : false;
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}
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break;
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}
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}
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/**
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* Sets the filepath of the metadata file
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*
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* @return boolean Set to true if it exists, throws an exception on failure
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*/
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private function set_metadata_file()
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{
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$ext_filepath = $this->extension_manager->get_extension_path($this->ext_name);
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$metadata_filepath = $this->phpbb_root_path . $ext_filepath . 'composer.json';
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$this->metadata_file = $metadata_filepath;
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if (!file_exists($this->metadata_file))
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{
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throw new \phpbb\extension\exception('The required file does not exist: ' . $this->metadata_file);
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}
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}
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/**
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* Gets the contents of the composer.json file
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*
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* @return bool True if success, throws an exception on failure
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*/
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private function fetch_metadata()
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{
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if (!file_exists($this->metadata_file))
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{
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throw new \phpbb\extension\exception('The required file does not exist: ' . $this->metadata_file);
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}
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else
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{
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if (!($file_contents = file_get_contents($this->metadata_file)))
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{
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throw new \phpbb\extension\exception('file_get_contents failed on ' . $this->metadata_file);
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}
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if (($metadata = json_decode($file_contents, true)) === NULL)
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{
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throw new \phpbb\extension\exception('json_decode failed on ' . $this->metadata_file);
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}
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$this->metadata = $metadata;
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return true;
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}
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}
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/**
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* This array handles the cleaning of the array
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*
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* @return array Contains the cleaned metadata array
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*/
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private function clean_metadata_array()
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{
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return $this->metadata;
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}
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/**
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* Validate fields
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*
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* @param string $name ("all" for display and enable validation
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* "display" for name, type, and authors
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* "name", "type")
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* @return Bool True if valid, throws an exception if invalid
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*/
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public function validate($name = 'display')
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{
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// Basic fields
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$fields = array(
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'name' => '#^[a-zA-Z0-9_\x7f-\xff]{2,}/[a-zA-Z0-9_\x7f-\xff]{2,}$#',
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'type' => '#^phpbb3-extension$#',
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'licence' => '#.+#',
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'version' => '#.+#',
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);
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switch ($name)
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{
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case 'all':
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$this->validate('display');
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$this->validate_enable();
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break;
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case 'display':
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foreach ($fields as $field => $data)
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{
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$this->validate($field);
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}
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$this->validate_authors();
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break;
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default:
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if (isset($fields[$name]))
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{
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if (!isset($this->metadata[$name]))
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{
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throw new \phpbb\extension\exception("Required meta field '$name' has not been set.");
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}
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if (!preg_match($fields[$name], $this->metadata[$name]))
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{
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throw new \phpbb\extension\exception("Meta field '$name' is invalid.");
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}
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}
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break;
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}
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return true;
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}
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/**
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* Validates the contents of the authors field
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*
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* @return boolean True when passes validation, throws exception if invalid
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*/
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public function validate_authors()
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{
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if (empty($this->metadata['authors']))
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{
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throw new \phpbb\extension\exception("Required meta field 'authors' has not been set.");
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}
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foreach ($this->metadata['authors'] as $author)
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{
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if (!isset($author['name']))
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{
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throw new \phpbb\extension\exception("Required meta field 'author name' has not been set.");
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}
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}
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return true;
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}
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/**
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* This array handles the verification that this extension can be enabled on this board
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*
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* @return bool True if validation succeeded, False if failed
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*/
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public function validate_enable()
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{
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// Check for phpBB, PHP versions
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if (!$this->validate_require_phpbb() || !$this->validate_require_php())
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{
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return false;
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}
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return true;
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}
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/**
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* Validates the contents of the phpbb requirement field
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*
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* @return boolean True when passes validation
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*/
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public function validate_require_phpbb()
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{
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if (!isset($this->metadata['require']['phpbb']))
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{
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return true;
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}
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return $this->_validate_version($this->metadata['require']['phpbb'], $this->config['version']);
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}
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/**
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* Validates the contents of the php requirement field
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*
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* @return boolean True when passes validation
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*/
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public function validate_require_php()
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{
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if (!isset($this->metadata['require']['php']))
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{
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return true;
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}
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return $this->_validate_version($this->metadata['require']['php'], phpversion());
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}
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/**
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* Version validation helper
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*
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* @param string $string The string for comparing to a version
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* @param string $current_version The version to compare to
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* @return bool True/False if meets version requirements
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*/
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private function _validate_version($string, $current_version)
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{
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// Allow them to specify their own comparison operator (ex: <3.1.2, >=3.1.0)
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$comparison_matches = false;
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preg_match('#[=<>]+#', $string, $comparison_matches);
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if (!empty($comparison_matches))
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{
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return version_compare($current_version, str_replace(array($comparison_matches[0], ' '), '', $string), $comparison_matches[0]);
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}
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return version_compare($current_version, $string, '>=');
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}
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/**
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* Outputs the metadata into the template
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*
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* @return null
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*/
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public function output_template_data()
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{
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$this->template->assign_vars(array(
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'META_NAME' => htmlspecialchars($this->metadata['name']),
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'META_TYPE' => htmlspecialchars($this->metadata['type']),
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'META_DESCRIPTION' => (isset($this->metadata['description'])) ? htmlspecialchars($this->metadata['description']) : '',
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'META_HOMEPAGE' => (isset($this->metadata['homepage'])) ? $this->metadata['homepage'] : '',
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'META_VERSION' => (isset($this->metadata['version'])) ? htmlspecialchars($this->metadata['version']) : '',
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'META_TIME' => (isset($this->metadata['time'])) ? htmlspecialchars($this->metadata['time']) : '',
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'META_LICENCE' => htmlspecialchars($this->metadata['licence']),
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'META_REQUIRE_PHP' => (isset($this->metadata['require']['php'])) ? htmlspecialchars($this->metadata['require']['php']) : '',
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'META_REQUIRE_PHP_FAIL' => !$this->validate_require_php(),
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'META_REQUIRE_PHPBB' => (isset($this->metadata['require']['phpbb'])) ? htmlspecialchars($this->metadata['require']['phpbb']) : '',
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'META_REQUIRE_PHPBB_FAIL' => !$this->validate_require_phpbb(),
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'META_DISPLAY_NAME' => (isset($this->metadata['extra']['display-name'])) ? htmlspecialchars($this->metadata['extra']['display-name']) : '',
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));
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foreach ($this->metadata['authors'] as $author)
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{
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$this->template->assign_block_vars('meta_authors', array(
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'AUTHOR_NAME' => htmlspecialchars($author['name']),
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'AUTHOR_EMAIL' => (isset($author['email'])) ? $author['email'] : '',
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'AUTHOR_HOMEPAGE' => (isset($author['homepage'])) ? $author['homepage'] : '',
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'AUTHOR_ROLE' => (isset($author['role'])) ? htmlspecialchars($author['role']) : '',
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));
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}
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}
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}
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