Edit File: InstalledPackage.php
<?php if ( !class_exists('Puc_v4p11_InstalledPackage', false) ): /** * This class represents a currently installed plugin or theme. * * Not to be confused with the "package" field in WP update API responses that contains * the download URL of a the new version. */ abstract class Puc_v4p11_InstalledPackage { /** * @var Puc_v4p11_UpdateChecker */ protected $updateChecker; public function __construct($updateChecker) { $this->updateChecker = $updateChecker; } /** * Get the currently installed version of the plugin or theme. * * @return string|null Version number. */ abstract public function getInstalledVersion(); /** * Get the full path of the plugin or theme directory (without a trailing slash). * * @return string */ abstract public function getAbsoluteDirectoryPath(); /** * Check whether a regular file exists in the package's directory. * * @param string $relativeFileName File name relative to the package directory. * @return bool */ public function fileExists($relativeFileName) { return is_file( $this->getAbsoluteDirectoryPath() . DIRECTORY_SEPARATOR . ltrim($relativeFileName, '/\\') ); } /* ------------------------------------------------------------------- * File header parsing * ------------------------------------------------------------------- */ /** * Parse plugin or theme metadata from the header comment. * * This is basically a simplified version of the get_file_data() function from /wp-includes/functions.php. * It's intended as a utility for subclasses that detect updates by parsing files in a VCS. * * @param string|null $content File contents. * @return string[] */ public function getFileHeader($content) { $content = (string)$content; //WordPress only looks at the first 8 KiB of the file, so we do the same. $content = substr($content, 0, 8192); //Normalize line endings. $content = str_replace("\r", "\n", $content); $headers = $this->getHeaderNames(); $results = array(); foreach ($headers as $field => $name) { $success = preg_match('/^[ \t\/*#@]*' . preg_quote($name, '/') . ':(.*)$/mi', $content, $matches); if ( ($success === 1) && $matches[1] ) { $value = $matches[1]; if ( function_exists('_cleanup_header_comment') ) { $value = _cleanup_header_comment($value); } $results[$field] = $value; } else { $results[$field] = ''; } } return $results; } /** * @return array Format: ['HeaderKey' => 'Header Name'] */ abstract protected function getHeaderNames(); /** * Get the value of a specific plugin or theme header. * * @param string $headerName * @return string Either the value of the header, or an empty string if the header doesn't exist. */ abstract public function getHeaderValue($headerName); } endif;