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

Util.php in User Access Manager 2.2.15, 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
16	declare(strict_types=1);
17
18	namespace UserAccessManager\Util;
19
20	use Exception;
21	use UserAccessManager\Wrapper\Php;
22
23	/**
24	* Class Util
25	*
26	* @package UserAccessManager\Util
27	*/
28	class Util
29	{
30	/**
31	* @var Php
32	*/
33	private $php;
34
35	/**
36	* Util constructor.
37	* @param Php $php
38	*/
39	public function __construct(Php $php)
40	{
41	$this->php = $php;
42	}
43
44	/**
45	* Checks if a string starts with the given needle.
46	* @param string $haystack The haystack.
47	* @param string $needle The needle.
48	* @return bool
49	*/
50	public function startsWith(string $haystack, string $needle): bool
51	{
52	return $needle === '' \|\| strpos($haystack, $needle) === 0;
53	}
54
55	/**
56	* Checks if a string ends with the given needle.
57	* @param string $haystack
58	* @param string $needle
59	* @return bool
60	*/
61	public function endsWith(string $haystack, string $needle): bool
62	{
63	return $needle === '' \|\| substr($haystack, -strlen($needle)) === $needle;
64	}
65
66	/**
67	* Generates and returns a random password.
68	* @param int $length
69	* @return string
70	* @throws Exception
71	*/
72	public function getRandomPassword($length = 32): string
73	{
74	$bytes = $this->php->opensslRandomPseudoBytes($length + 1, $strong);
75
76	if ($bytes !== false && $strong === true) {
77	return substr(preg_replace('/[^a-zA-Z0-9]/', '', base64_encode($bytes)), 0, $length);
78	} else {
79	throw new Exception('Unable to generate secure token from OpenSSL.');
80	}
81	}
82
83	/**
84	* Returns the current url.
85	* @return string
86	*/
87	public function getCurrentUrl(): string
88	{
89	if (isset($_SERVER['REQUEST_URI']) === false) {
90	$serverRequestUri = $_SERVER['PHP_SELF'];
91	} else {
92	$serverRequestUri = $_SERVER['REQUEST_URI'];
93	}
94
95	$https = $_SERVER['HTTPS'] ?? '';
96	$secure = $https === 'on' ? 's' : '';
97	$protocols = explode('/', strtolower($_SERVER['SERVER_PROTOCOL']));
98	$protocol = $protocols[0] . $secure;
99	$port = ((int) $_SERVER['SERVER_PORT'] === 80) ? '' : (':' . $_SERVER['SERVER_PORT']);
100
101	return $protocol . '://' . $_SERVER['SERVER_NAME'] . $port . $serverRequestUri;
102	}
103	}
104