s2member / includes / classes / utils-conds.inc.php

utils-conds.inc.php in s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions 110815, at includes/classes/utils-conds.inc.php

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1	<?php
2	/**
3	* Conditional utilities.
4	*
5	* Copyright: © 2009-2011
6	* {@link http://www.websharks-inc.com/ WebSharks, Inc.}
7	* ( coded in the USA )
8	*
9	* Released under the terms of the GNU General Public License.
10	* You should have received a copy of the GNU General Public License,
11	* along with this software. In the main directory, see: /licensing/
12	* If not, see: {@link http://www.gnu.org/licenses/}.
13	*
14	* @package s2Member\Utilities
15	* @since 3.5
16	*/
17	if (realpath (__FILE__) === realpath ($_SERVER["SCRIPT_FILENAME"]))
18	exit("Do not access this file directly.");
19	/**/
20	if (!class_exists ("c_ws_plugin__s2member_utils_conds"))
21	{
22	/**
23	* Conditional utilities.
24	*
25	* @package s2Member\Utilities
26	* @since 3.5
27	*/
28	class c_ws_plugin__s2member_utils_conds
29	{
30	/**
31	* Determines whether or not BuddyPress is installed.
32	*
33	* @package s2Member\Utilities
34	* @since 110720
35	*
36	* @return bool True if BuddyPress is installed, else false.
37	*/
38	public static function bp_is_installed ()
39	{
40	return defined ("BP_VERSION");
41	}
42	/**
43	* Determines whether or not s2Member Pro is installed.
44	*
45	* @package s2Member\Utilities
46	* @since 110720
47	*
48	* @return bool True if s2Member Pro is installed, else false.
49	*/
50	public static function pro_is_installed ()
51	{
52	return defined ("WS_PLUGIN__S2MEMBER_PRO_VERSION");
53	}
54	/**
55	* Determines whether or not this is a Multisite Farm;
56	* ( i.e. if ``MULTISITE_FARM == true`` inside `/wp-config.php` ).
57	*
58	* With s2Member, this option may also indicate a Multisite Blog Farm.
59	* ``$GLOBALS["WS_PLUGIN__"]["s2member"]["o"]["mms_registration_file"] === "wp-signup"``.
60	*
61	* @package s2Member\Utilities
62	* @since 3.5
63	*
64	* @return bool True if this is a Multisite Farm, else false.
65	*/
66	public static function is_multisite_farm ()
67	{
68	return (is_multisite () && ((is_main_site () && $GLOBALS["WS_PLUGIN__"]["s2member"]["o"]["mms_registration_file"] === "wp-signup") \|\| (defined ("MULTISITE_FARM") && MULTISITE_FARM)));
69	}
70	/**
71	* Checks if a Post is in a child Category.
72	*
73	* @package s2Member\Utilities
74	* @since 3.5
75	*
76	* @param array $cats An array of Category IDs.
77	* @param int\|str $post_id A numeric WordPress® Post ID.
78	* @return bool True if the Post is inside a desendant of at least one of the specified Categories; else false.
79	*/
80	public static function in_descendant_category ($cats = FALSE, $post_id = FALSE)
81	{
82	foreach ((array)$cats as $cat)
83	{
84	$descendants = get_term_children ((int)$cat, "category");
85	if ($descendants && in_category ($descendants, $post_id))
86	return true;
87	}
88	/**/
89	return false;
90	}
91	/**
92	* Checks to see if a URL/URI leads to the site root.
93	*
94	* @package s2Member\Utilities
95	* @since 3.5
96	*
97	* @param str $url_or_uri Either a full URL, or a URI to test against.
98	* @return bool True if the URL or URI leads to the site root, else false.
99	*/
100	public static function is_site_root ($url_or_uri = FALSE)
101	{
102	if (($parse = @parse_url ($url_or_uri))) /* See: http://php.net/manual/en/function.parse-url.php. */
103	{
104	$parse["path"] = (!empty ($parse["path"])) ? ((strpos ($parse["path"], "/") === 0) ? $parse["path"] : "/" . $parse["path"]) : "/";
105	$parse["path"] = preg_replace ("/\/+/", "/", $parse["path"]); /* Removes multi slashes. */
106	/**/
107	if (empty ($parse["host"]) \|\| strcasecmp ($parse["host"], parse_url (site_url (), PHP_URL_HOST)) === 0)
108	if ($parse["path"] === "/" \|\| rtrim ($parse["path"], "/") === rtrim (parse_url (site_url (), PHP_URL_PATH), "/"))
109	return true;
110	}
111	/**/
112	return false;
113	}
114	}
115	}
116	?>