Current File : /home/tradesc/www/relax/wp-content/plugins/Ereferer/lib/plugin-update-checker/Puc/v4p4/Factory.php
<?php
if ( !class_exists('Puc_v4p4_Factory', false) ):
/**
* A factory that builds update checker instances.
*
* When multiple versions of the same class have been loaded (e.g. PluginUpdateChecker 4.0
* and 4.1), this factory will always use the latest available minor version. Register class
* versions by calling {@link PucFactory::addVersion()}.
*
* At the moment it can only build instances of the UpdateChecker class. Other classes are
* intended mainly for internal use and refer directly to specific implementations.
*/
class Puc_v4p4_Factory {
protected static $classVersions = array();
protected static $sorted = false;
protected static $myMajorVersion = '';
protected static $latestCompatibleVersion = '';
/**
* Create a new instance of the update checker.
*
* This method automatically detects if you're using it for a plugin or a theme and chooses
* the appropriate implementation for your update source (JSON file, GitHub, BitBucket, etc).
*
* @see Puc_v4p4_UpdateChecker::__construct
*
* @param string $metadataUrl The URL of the metadata file, a GitHub repository, or another supported update source.
* @param string $fullPath Full path to the main plugin file or to the theme directory.
* @param string $slug Custom slug. Defaults to the name of the main plugin file or the theme directory.
* @param int $checkPeriod How often to check for updates (in hours).
* @param string $optionName Where to store book-keeping info about update checks.
* @param string $muPluginFile The plugin filename relative to the mu-plugins directory.
* @return Puc_v4p4_Plugin_UpdateChecker|Puc_v4p4_Theme_UpdateChecker|Puc_v4p4_Vcs_BaseChecker
*/
public static function buildUpdateChecker($metadataUrl, $fullPath, $slug = '', $checkPeriod = 12, $optionName = '', $muPluginFile = '') {
$fullPath = self::normalizePath($fullPath);
$id = null;
//Plugin or theme?
$themeDirectory = self::getThemeDirectoryName($fullPath);
if ( self::isPluginFile($fullPath) ) {
$type = 'Plugin';
$id = $fullPath;
} else if ( $themeDirectory !== null ) {
$type = 'Theme';
$id = $themeDirectory;
} else {
throw new RuntimeException(sprintf(
'The update checker cannot determine if "%s" is a plugin or a theme. ' .
'This is a bug. Please contact the PUC developer.',
htmlentities($fullPath)
));
}
//Which hosting service does the URL point to?
$service = self::getVcsService($metadataUrl);
$apiClass = null;
if ( empty($service) ) {
//The default is to get update information from a remote JSON file.
$checkerClass = $type . '_UpdateChecker';
} else {
//You can also use a VCS repository like GitHub.
$checkerClass = 'Vcs_' . $type . 'UpdateChecker';
$apiClass = $service . 'Api';
}
$checkerClass = self::getCompatibleClassVersion($checkerClass);
if ( $checkerClass === null ) {
trigger_error(
sprintf(
'PUC %s does not support updates for %ss %s',
htmlentities(self::$latestCompatibleVersion),
strtolower($type),
$service ? ('hosted on ' . htmlentities($service)) : 'using JSON metadata'
),
E_USER_ERROR
);
return null;
}
if ( !isset($apiClass) ) {
//Plain old update checker.
return new $checkerClass($metadataUrl, $id, $slug, $checkPeriod, $optionName, $muPluginFile);
} else {
//VCS checker + an API client.
$apiClass = self::getCompatibleClassVersion($apiClass);
if ( $apiClass === null ) {
trigger_error(sprintf(
'PUC %s does not support %s',
htmlentities(self::$latestCompatibleVersion),
htmlentities($service)
), E_USER_ERROR);
return null;
}
return new $checkerClass(
new $apiClass($metadataUrl),
$id,
$slug,
$checkPeriod,
$optionName,
$muPluginFile
);
}
}
/**
*
* Normalize a filesystem path. Introduced in WP 3.9.
* Copying here allows use of the class on earlier versions.
* This version adapted from WP 4.8.2 (unchanged since 4.5.0)
*
* @param string $path Path to normalize.
* @return string Normalized path.
*/
public static function normalizePath($path) {
if ( function_exists('wp_normalize_path') ) {
return wp_normalize_path($path);
}
$path = str_replace('\\', '/', $path);
$path = preg_replace('|(?<=.)/+|', '/', $path);
if ( substr($path, 1, 1) === ':' ) {
$path = ucfirst($path);
}
return $path;
}
/**
* Check if the path points to a plugin file.
*
* @param string $absolutePath Normalized path.
* @return bool
*/
protected static function isPluginFile($absolutePath) {
//Is the file inside the "plugins" or "mu-plugins" directory?
$pluginDir = self::normalizePath(WP_PLUGIN_DIR);
$muPluginDir = self::normalizePath(WPMU_PLUGIN_DIR);
if ( (strpos($absolutePath, $pluginDir) === 0) || (strpos($absolutePath, $muPluginDir) === 0) ) {
return true;
}
//Is it a file at all? Caution: is_file() can fail if the parent dir. doesn't have the +x permission set.
if ( !is_file($absolutePath) ) {
return false;
}
//Does it have a valid plugin header?
//This is a last-ditch check for plugins symlinked from outside the WP root.
if ( function_exists('get_file_data') ) {
$headers = get_file_data($absolutePath, array('Name' => 'Plugin Name'), 'plugin');
return !empty($headers['Name']);
}
return false;
}
/**
* Get the name of the theme's directory from a full path to a file inside that directory.
* E.g. "/abc/public_html/wp-content/themes/foo/whatever.php" => "foo".
*
* Note that subdirectories are currently not supported. For example,
* "/xyz/wp-content/themes/my-theme/includes/whatever.php" => NULL.
*
* @param string $absolutePath Normalized path.
* @return string|null Directory name, or NULL if the path doesn't point to a theme.
*/
protected static function getThemeDirectoryName($absolutePath) {
if ( is_file($absolutePath) ) {
$absolutePath = dirname($absolutePath);
}
if ( file_exists($absolutePath . '/style.css') ) {
return basename($absolutePath);
}
return null;
}
/**
* Get the name of the hosting service that the URL points to.
*
* @param string $metadataUrl
* @return string|null
*/
private static function getVcsService($metadataUrl) {
$service = null;
//Which hosting service does the URL point to?
$host = @parse_url($metadataUrl, PHP_URL_HOST);
$path = @parse_url($metadataUrl, PHP_URL_PATH);
//Check if the path looks like "/user-name/repository".
$usernameRepoRegex = '@^/?([^/]+?)/([^/#?&]+?)/?$@';
if ( preg_match($usernameRepoRegex, $path) ) {
$knownServices = array(
'github.com' => 'GitHub',
'bitbucket.org' => 'BitBucket',
'gitlab.com' => 'GitLab',
);
if ( isset($knownServices[$host]) ) {
$service = $knownServices[$host];
}
}
return $service;
}
/**
* Get the latest version of the specified class that has the same major version number
* as this factory class.
*
* @param string $class Partial class name.
* @return string|null Full class name.
*/
protected static function getCompatibleClassVersion($class) {
if ( isset(self::$classVersions[$class][self::$latestCompatibleVersion]) ) {
return self::$classVersions[$class][self::$latestCompatibleVersion];
}
return null;
}
/**
* Get the specific class name for the latest available version of a class.
*
* @param string $class
* @return null|string
*/
public static function getLatestClassVersion($class) {
if ( !self::$sorted ) {
self::sortVersions();
}
if ( isset(self::$classVersions[$class]) ) {
return reset(self::$classVersions[$class]);
} else {
return null;
}
}
/**
* Sort available class versions in descending order (i.e. newest first).
*/
protected static function sortVersions() {
foreach ( self::$classVersions as $class => $versions ) {
uksort($versions, array(__CLASS__, 'compareVersions'));
self::$classVersions[$class] = $versions;
}
self::$sorted = true;
}
protected static function compareVersions($a, $b) {
return -version_compare($a, $b);
}
/**
* Register a version of a class.
*
* @access private This method is only for internal use by the library.
*
* @param string $generalClass Class name without version numbers, e.g. 'PluginUpdateChecker'.
* @param string $versionedClass Actual class name, e.g. 'PluginUpdateChecker_1_2'.
* @param string $version Version number, e.g. '1.2'.
*/
public static function addVersion($generalClass, $versionedClass, $version) {
if ( empty(self::$myMajorVersion) ) {
$nameParts = explode('_', __CLASS__, 3);
self::$myMajorVersion = substr(ltrim($nameParts[1], 'v'), 0, 1);
}
//Store the greatest version number that matches our major version.
$components = explode('.', $version);
if ( $components[0] === self::$myMajorVersion ) {
if (
empty(self::$latestCompatibleVersion)
|| version_compare($version, self::$latestCompatibleVersion, '>')
) {
self::$latestCompatibleVersion = $version;
}
}
if ( !isset(self::$classVersions[$generalClass]) ) {
self::$classVersions[$generalClass] = array();
}
self::$classVersions[$generalClass][$version] = $versionedClass;
self::$sorted = false;
}
}
endif;
Mini Shell