Began work on the core_image.php reader

e107_handlers/e_file_inspector_json.php

@@ -0,0 +1,89 @@
+<?php
+/**
+ * e107 website system
+ *
+ * Copyright (C) 2008-2020 e107 Inc (e107.org)
+ * Released under the terms and conditions of the
+ * GNU General Public License (http://www.gnu.org/licenses/gpl.txt)
+ */
+
+require_once("e_file_inspector.php");
+
+class e_file_inspector_json extends e_file_inspector
+{
+	private $coreImage;
+
+	public function __construct()
+	{
+		global $core_image;
+		require(e_ADMIN . "core_image.php");
+		$this->coreImage = json_decode($core_image, true);
+		unset($core_image);
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getChecksums($path)
+	{
+		$path = $this->pathToDefaultPath($path);
+		return self::array_get($this->coreImage, $path, []);
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getVersions($path)
+	{
+		$path = $this->pathToDefaultPath($path);
+		return array_keys(self::array_get($this->coreImage, $path, []));
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function isInsecure($path)
+	{
+		# TODO
+		return false;
+	}
+
+	/**
+	 * Get an item from an array using "slash" notation.
+	 *
+	 * Based on Illuminate\Support\Arr::get()
+	 *
+	 * @param array $array
+	 * @param string $key
+	 * @param mixed $default
+	 * @return mixed
+	 * @copyright Copyright (c) Taylor Otwell
+	 * @license https://github.com/illuminate/support/blob/master/LICENSE.md MIT License
+	 */
+	private static function array_get($array, $key, $default = null)
+	{
+		if (is_null($key)) return $array;
+
+		if (isset($array[$key])) return $array[$key];
+
+		foreach (explode('/', $key) as $segment) {
+			if (!is_array($array) || !array_key_exists($segment, $array)) {
+				return $default;
+			}
+
+			$array = $array[$segment];
+		}
+
+		return $array;
+	}
+
+	private function pathToDefaultPath($path)
+	{
+		$defaultDirs = e107::getInstance()->defaultDirs();
+		foreach ($defaultDirs as $dirType => $defaultDir) {
+			$customDir = e107::getFolder(preg_replace("/_DIRECTORY$/i", "", $dirType));
+			$path = preg_replace("/^" . preg_quote($customDir, "/") . "/", $defaultDir, $path);
+		}
+		return $path;
+	}
+}