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wp-content/plugins/debloat/inc/base/asset.php

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+<?php
+
+namespace Sphere\Debloat\Base;
+
+use Sphere\Debloat\Plugin;
+
+/**
+ * Base class for scripts and stylesheets.
+ * 
+ * @uses Plugin::file_system()
+ * 
+ * @author  asadkn
+ * @since   1.0.0
+ */
+abstract class Asset
+{
+	/**
+	 * @var string
+	 */
+	public $id;
+
+	/**
+	 * @var string
+	 */
+	public $orig_url;
+	public $url;
+	public $minified_url;
+
+	/**
+	 * Whether the asset is local or at a remote URL.
+	 * Note: Defaults to null for lazy init.
+	 *
+	 * @var boolean
+	 */
+	private $is_remote = null;
+
+	/**
+	 * Return URL to get content from. Minified URL if present.
+	 *
+	 * @return void
+	 */
+	public function get_content_url()
+	{
+		return $this->minified_url ?: $this->url;
+	}
+
+	/**
+	 * Render attributes using key values.
+	 *
+	 * @param array $orig_attrs Key value pair of attributes.
+	 * @param array $safe       List of attributes pre-escaped.
+	 * @return array Array of attributes.
+	 */
+	public function render_attrs($orig_attrs, $safe = [])
+	{
+		$attrs = [];
+		foreach ($orig_attrs as $key => $value) {
+
+			// For true, no value is needed in HTML.
+			if ($value === true) {
+				$attrs[] = $key;
+				continue;
+			}
+
+			// Adding previously escaped, but escape again just in case it was done using 
+			// different quotes originally.
+			$value = !in_array($key, $safe) ? esc_attr($value) : $value;
+			$attrs[] = sprintf('%s="%s"', $key, $value);
+		}
+
+		return $attrs;
+    }
+
+	/**
+	 * Whether the asset is on a remote location.
+	 *
+	 * @return boolean
+	 */
+	public function is_remote()
+	{
+		if ($this->is_remote || $this->minified_url) {
+			return true;
+		}
+
+		if ($this->is_remote === null && !Plugin::file_system()->url_to_local($this->url)) {
+			$this->is_remote = true;
+		}
+
+		return $this->is_remote;
+	}
+}