Initial Commit

inc/functions/url.php

@@ -0,0 +1,107 @@
+<?php
+/**
+ * URL Helper Functions
+ *
+ * @package WP_Ultimo\Functions
+ * @since   2.0.0
+ */
+
+// Exit if accessed directly
+defined('ABSPATH') || exit;
+
+/**
+ * Returns the current URL.
+ *
+ * @since 2.0.0
+ * @return string
+ */
+function wu_get_current_url() {
+	/*
+	 * When doing ajax requests, we don't want the admin-ajax URL, but
+	 * the initiator URL.
+	 */
+	if (wp_doing_ajax() && isset($_SERVER['HTTP_REFERER'])) {
+
+		return $_SERVER['HTTP_REFERER'];
+
+	} // end if;
+
+	return (is_ssl() ? 'https://' : 'http://') . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
+
+} // end wu_get_current_url;
+
+/**
+ * Replaces or removes the scheme from a URL.
+ *
+ * @since 2.0.0
+ *
+ * @param string $url The URL to process.
+ * @param string $new_scheme An empty string, https, or http.
+ * @return string
+ */
+function wu_replace_scheme($url, $new_scheme = '') {
+
+	return preg_replace('(^https?://)', $new_scheme, $url);
+
+} // end wu_replace_scheme;
+
+/**
+ * Wrapper to the network_admin_url function for WP Ultimo admin urls.
+ *
+ * @since 2.0.0
+ *
+ * @param string $path WP Ultimo page.
+ * @param array  $query URL query parameters.
+ * @return string
+ */
+function wu_network_admin_url($path, $query = array()) {
+
+	$path = sprintf('admin.php?page=%s', $path);
+
+	$url = network_admin_url($path);
+
+	return add_query_arg($query, $url);
+
+} // end wu_network_admin_url;
+
+/**
+ * Get the light ajax implementation URL.
+ *
+ * @since 2.0.0
+ *
+ * @param null|string $when The wu-when parameter to be used, defaults to plugins_loaded.
+ * @param array       $query_args List of additional query args to add to the final URL.
+ * @param int         $site_id The site to use as a base.
+ * @param null|string $scheme URL scheme. Follows the same rules as the scheme param of get_home_url.
+ * @return string
+ */
+function wu_ajax_url($when = null, $query_args = array(), $site_id = false, $scheme = null) {
+
+	if (empty($site_id)) {
+
+		$site_id = get_current_blog_id();
+
+	} // end if;
+
+	$base_url = get_home_url($site_id, '', $scheme);
+
+	if (!is_array($query_args)) {
+
+		$query_args = array();
+
+	} // end if;
+
+	$query_args['wu-ajax'] = 1;
+	$query_args['r']       = wp_create_nonce('wu-ajax-nonce');
+
+	if ($when) {
+
+		$query_args['wu-when'] = base64_encode($when);
+
+	} // end if;
+
+	$url = add_query_arg($query_args, $base_url);
+
+	return apply_filters('wu_ajax_url', $url, $query_args, $when, $site_id);
+
+} // end wu_ajax_url;