wp-optimize / webp / class-wpo-server-info.php

class-wpo-server-info.php in WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance 3.2.3, at webp/class-wpo-server-info.php

105 lines 2.0 KB

Raw Download Zip

1	<?php
2	if (!defined('WPO_PLUGIN_MAIN_PATH')) die('No direct access allowed');
3
4	class WPO_Server_Info {
5
6	private static $_instance = null;
7
8	/**
9	* @var $_server_name Web server engine name
10	*/
11	private $_server_name;
12
13	/**
14	* @var $_rewrite_status Web server's URL rewrite ability
15	*/
16	private $_rewrite_status;
17
18	/**
19	* Setup server information
20	*/
21	public function __construct() {
22	$this->set_server_name();
23	$this->set_rewrite_status();
24	}
25
26	/**
27	* Gets singleton instance
28	*
29	* @return object
30	*/
31	public static function get_instance() {
32	if (null === self::$_instance) {
33	self::$_instance = new self();
34	}
35	return self::$_instance;
36	}
37
38	/**
39	* Detect and set web server names
40	*/
41	private function set_server_name() {
42	global $is_apache, $is_nginx, $is_iis7, $is_IIS;
43
44	if ($is_apache) {
45	$this->_server_name = 'apache';
46	}
47
48	if ($is_iis7) {
49	$this->_server_name = 'iis7';
50	}
51
52	if ($is_IIS) {
53	$this->_server_name = 'iis';
54	}
55
56	if ($is_nginx) {
57	$this->_server_name = 'nginx';
58	}
59	}
60
61	/**
62	* Sets web server's rewrite ability
63	*/
64	private function set_rewrite_status() {
65	if ('apache' === $this->_server_name) {
66	$this->test_htaccess_capabilities();
67	} else {
68	$this->_rewrite_status = false;
69	}
70	}
71
72	/**
73	* Test Apache/LiteSpeed server's htaccess capabilities, and sets status and info
74	*/
75	private function test_htaccess_capabilities() {
76	if (!class_exists('WPO_Htaccess_Capabilities')) {
77	include_once WPO_PLUGIN_MAIN_PATH . 'webp/class-wpo-htaccess-capabilities.php';
78	}
79	$htc = WPO_Htaccess_Capabilities::get_instance();
80	if ($htc->htaccess_enabled && $htc->mod_rewrite && $htc->mod_headers && $htc->mod_mime) {
81	$this->_rewrite_status = true;
82	} elseif ($htc->htaccess_enabled) {
83	$this->_rewrite_status = false;
84	}
85	}
86
87	/**
88	* Getter for web server name
89	*
90	* @return string
91	*/
92	public function get_server_name() {
93	return $this->_server_name;
94	}
95
96	/**
97	* Getter for web server's rewrite capability
98	*
99	* @return bool
100	*/
101	public function get_rewrite_status() {
102	return $this->_rewrite_status;
103	}
104	}
105