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

utils-dirs.inc.php in s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions 110912, at includes/classes/utils-dirs.inc.php

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1	<?php
2	/**
3	* Directory 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_dirs"))
21	{
22	/**
23	* Directory utilities.
24	*
25	* @package s2Member\Utilities
26	* @since 3.5
27	*/
28	class c_ws_plugin__s2member_utils_dirs
29	{
30	/**
31	* Formulates basename dirs from a full directory path.
32	*
33	* This takes Windows® `\app_data\` sub-folders into consideration.
34	*
35	* @package s2Member\Utilities
36	* @since 110815
37	*
38	* @param str $dir_path Directory path.
39	* @return str Basename directory path; including a possible `\app_data\` directory.
40	*/
41	public static function basename_dir_app_data ($dir_path = FALSE)
42	{
43	$dir_path = rtrim ($dir_path, DIRECTORY_SEPARATOR . "/");
44	/**/
45	$dir_path = preg_replace ("/(" . preg_quote (DIRECTORY_SEPARATOR, "/") . "\|\/)app_data$/i", "", $dir_path, 1, $app_data);
46	/**/
47	return basename ($dir_path) . (($app_data) ? "/app_data" : "");
48	}
49	/**
50	* Strips a trailing `\app_data\` sub-directory from the full path.
51	*
52	* @package s2Member\Utilities
53	* @since 3.5
54	*
55	* @param str $dir_path Directory path.
56	* @return str Directory path without `\app_data\`.
57	*/
58	public static function strip_dir_app_data ($dir_path = FALSE)
59	{
60	$dir_path = rtrim ($dir_path, DIRECTORY_SEPARATOR . "/");
61	/**/
62	return preg_replace ("/(" . preg_quote (DIRECTORY_SEPARATOR, "/") . "\|\/)app_data$/i", "", $dir_path, 1);
63	}
64	/**
65	* Finds the relative path, from one location to another.
66	*
67	* @package s2Member\Utilities
68	* @since 110815
69	*
70	* @param str $from The directory to calculate a relative path from.
71	* @param str $to The directory or file to build a relative path to.
72	* @return str String with the relative path to ``$to``.
73	*/
74	public static function rel_path ($from = FALSE, $to = FALSE)
75	{
76	if (!($rel_path = array ()) && is_string ($from) && strlen ($from) && is_string ($to) && strlen ($to))
77	{
78	$to = str_replace (DIRECTORY_SEPARATOR, "/", $to);
79	$to = (strpos (basename ($to), ".") === false) ? rtrim ($to, "/") . "/" : $to;
80	$to = $rel_path = preg_split ("/\//", $to);
81	/**/
82	$from = str_replace (DIRECTORY_SEPARATOR, "/", $from);
83	$from = (strpos (basename ($from), ".") !== false) ? dirname ($from) : $from;
84	$from = preg_split ("/\//", rtrim ($from, "/") . "/");
85	/**/
86	foreach ($from as $depth => $dir) /* Each ``$from`` directory. */
87	{
88	if (isset ($to[$depth]) && $dir === $to[$depth])
89	array_shift($rel_path);
90	/**/
91	else if (($remaining = count ($from) - $depth) > 1)
92	{
93	$rel_path = array_pad ($rel_path, ((count ($rel_path) + $remaining - 1) * -1), "..");
94	break; /* Stop now, no need to go any further. */
95	}
96	else
97	$rel_path[0] = "./" . $rel_path[0];
98	}
99	}
100	/**/
101	return implode ("/", $rel_path);
102	}
103	/**
104	* Shortens to a path from document root.
105	*
106	* @package s2Member\Utilities
107	* @since 110815
108	*
109	* @param str $path Directory or file path.
110	* @return str Shorther path, from document root.
111	*/
112	public static function doc_root_path ($path = FALSE)
113	{
114	return preg_replace ("/^" . preg_quote (rtrim ($_SERVER["DOCUMENT_ROOT"], DIRECTORY_SEPARATOR . "/"), "/") . "/", "", (string)$path);
115	}
116	}
117	}
118	?>