user-access-manager / src / Util / Util.php

Util.php in User Access Manager 2.1.0, at src/Util/Util.php

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1	<?php
2	/**
3	* Util.php
4	*
5	* The Util class file.
6	*
7	* PHP versions 5
8	*
9	* @author Alexander Schneider <alexanderschneider85@gmail.com>
10	* @copyright 2008-2017 Alexander Schneider
11	* @license http://www.gnu.org/licenses/gpl-2.0.html GNU General Public License, version 2
12	* @version SVN: $id$
13	* @link http://wordpress.org/extend/plugins/user-access-manager/
14	*/
15	namespace UserAccessManager\Util;
16
17	use UserAccessManager\Wrapper\Php;
18
19	/**
20	* Class Util
21	*
22	* @package UserAccessManager\Util
23	*/
24	class Util
25	{
26	/**
27	* @var Php
28	*/
29	private $php;
30
31	/**
32	* Util constructor.
33	*
34	* @param Php $php
35	*/
36	public function __construct(Php $php)
37	{
38	$this->php = $php;
39	}
40
41	/**
42	* Checks if a string starts with the given needle.
43	*
44	* @param string $haystack The haystack.
45	* @param string $needle The needle.
46	*
47	* @return bool
48	*/
49	public function startsWith($haystack, $needle)
50	{
51	return $needle === '' \|\| strpos($haystack, $needle) === 0;
52	}
53
54	/**
55	* Checks if a string ends with the given needle.
56	*
57	* @param string $haystack
58	* @param string $needle
59	*
60	* @return bool
61	*/
62	public function endsWith($haystack, $needle)
63	{
64	return $needle === '' \|\| substr($haystack, -strlen($needle)) === $needle;
65	}
66
67	/**
68	* Generates and returns a random password.
69	*
70	* @param int $length
71	*
72	* @return string
73	*
74	* @throws \Exception
75	*/
76	public function getRandomPassword($length = 32)
77	{
78	$bytes = $this->php->opensslRandomPseudoBytes($length + 1, $strong);
79
80	if ($bytes !== false && $strong === true) {
81	return substr(preg_replace('/[^a-zA-Z0-9]/', '', base64_encode($bytes)), 0, $length);
82	} else {
83	throw new \Exception('Unable to generate secure token from OpenSSL.');
84	}
85	}
86
87	/**
88	* Returns the current url.
89	*
90	* @return string
91	*/
92	public function getCurrentUrl()
93	{
94	if (isset($_SERVER['REQUEST_URI']) === false) {
95	$serverRequestUri = $_SERVER['PHP_SELF'];
96	} else {
97	$serverRequestUri = $_SERVER['REQUEST_URI'];
98	}
99
100	$secure = empty($_SERVER['HTTPS']) ? '' : ($_SERVER['HTTPS'] === 'on') ? 's' : '';
101	$protocols = explode('/', strtolower($_SERVER['SERVER_PROTOCOL']));
102	$protocol = $protocols[0].$secure;
103	$port = ((int)$_SERVER['SERVER_PORT'] === 80) ? '' : (':'.$_SERVER['SERVER_PORT']);
104
105	return $protocol.'://'.$_SERVER['SERVER_NAME'].$port.$serverRequestUri;
106	}
107	}
108