code-profiler / lib / class-troubleshooter.php

class-troubleshooter.php in Code Profiler – WordPress Performance Profiling and Debugging Made Easy 1.5.1, at lib/class-troubleshooter.php

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1	<?php
2	/*
3	+=====================================================================+
4	\| ____ _ ____ __ _ _ \|
5	\| / ___\|___ __\| \| ___ \| _ \ _ __ ___ / _(_) \| ___ _ __ \|
6	\| \| \| / _ \ / _` \|/ _ \ \| \|_) \| '__/ _ \\| \|_\| \| \|/ _ \ '__\| \|
7	\| \| \|__\| (_) \| (_\| \| __/ \| __/\| \| \| (_) \| _\| \| \| __/ \| \|
8	\| \____\___/ \__,_\|\___\| \|_\| \|_\| \___/\|_\| \|_\|_\|\___\|_\| \|
9	\| \|
10	\| (c) Jerome Bruandet ~ https://code-profiler.com/ \|
11	+=====================================================================+
12	*/
13
14	if (! defined('ABSPATH') ) { die('Forbidden'); }
15
16	// =====================================================================
17
18	class CP_Troubleshooter {
19
20	/**
21	* Array to handle all results
22	*/
23	private $buffer = [];
24
25	/**
26	* Initialize.
27	*/
28	public function __construct() {
29
30	$this->get_system_info('sysinfo');
31	$this->cp_info('code-profiler');
32	$this->function_exists('functions');
33	$this->check_wpdb('wpdb');
34	$this->check_proxy('proxy');
35	$this->get_all_plugins('plugins');
36	$this->get_theme('themes');
37	$this->get_cp_config();
38
39	echo esc_textarea( print_r( $this->buffer, true ) );
40	}
41
42	/**
43	* Retrieve system info:
44	* * PHP version
45	* * PHP SAPI
46	* * HTTP server
47	* * Opcode cache
48	* * PHP directives (time limit, memory available, temp dir etc)
49	* * PHP last error
50	*/
51	private function get_system_info( $key ) {
52
53	$this->buffer[ $key ]['OS'] = php_uname();
54
55	if (! empty( $_SERVER['SERVER_SOFTWARE'] ) ) {
56	$this->buffer[ $key ]['HTTP server'] = $_SERVER['SERVER_SOFTWARE'];
57	} else {
58	$this->buffer[ $key ]['HTTP server'] = 'N/A';
59	}
60
61	$this->buffer[ $key ]['PHP'] = strtoupper( PHP_SAPI ) .' '. PHP_VERSION;
62
63	if ( extension_loaded('Zend OPcache') ) {
64	$this->buffer[ $key ]['Opcode cache'] = sprintf(
65	'Zend OPcache (%s)', ini_get('opcache.enable') ? 'enabled':'disabled'
66	);
67	} elseif ( extension_loaded('wincache') ) {
68	$this->buffer[ $key ]['Opcode cache'] = sprintf(
69	'wincache (%s)', ini_get('wincache.fcenabled') ? 'enabled':'disabled'
70	);
71	}
72
73	$this->buffer[ $key ]['Memory limit'] = ini_get('memory_limit');
74	$this->buffer[ $key ]['Peak limit'] = number_format( memory_get_peak_usage() );
75	$this->buffer[ $key ]['Max execution time'] = ini_get('max_execution_time') .'s';
76	$this->buffer[ $key ]['Disabled functions'] = ini_get('disable_functions');
77	$this->buffer[ $key ]['Display errors'] = ini_get('display_errors');
78
79	$tmp = ini_get('sys_temp_dir');
80	if (! empty( $tmp ) ) {
81	if ( is_writable( $tmp ) ) {
82	$tmp .= ' (writable)';
83	} else {
84	$tmp .= ' (not writable!)';
85	}
86	}
87	$tmp = $this->shorten_path( $tmp );
88	$this->buffer[ $key ]['Temp directory'] = $tmp;
89	$this->buffer[ $key ]['Log errors'] = ini_get('log_errors');
90	$this->buffer[ $key ]['Error log'] = ini_get('error_log');
91	$this->buffer[ $key ]['Last error'] = error_get_last();
92	if ( isset( $this->buffer[ $key ]['Last error']['file'] ) ) {
93	$this->buffer[ $key ]['Last error']['file'] = $this->shorten_path( $this->buffer[ $key ]['Last error']['file'] );
94	}
95	}
96
97
98	/**
99	* Verify if some important PHP functions are available.
100	*/
101	private function function_exists( $key ) {
102
103	$required_functions = [
104	'register_shutdown_function' => 'shutdown',
105	'register_tick_function' => 'tick',
106	'stream_wrapper_unregister' => 'unregister',
107	'stream_wrapper_register' => 'register',
108	'stream_wrapper_restore' => 'restore'
109	];
110
111	foreach ( $required_functions as $function => $value ) {
112	$this->buffer[ $key ][ $value ] = function_exists( $function );
113	}
114	}
115
116
117	/**
118	* Return the version and type (free/pro) of Code Profiler.
119	*/
120	private function cp_info( $key ) {
121
122	if ( defined('CODE_PROFILER_PRO_VERSION') ) {
123	$this->buffer[ $key ]['slug'] = 'code-profiler-pro';
124	$this->buffer[ $key ]['version'] = CODE_PROFILER_PRO_VERSION;
125
126	} elseif ( defined('CODE_PROFILER_VERSION') ) {
127	$this->buffer[ $key ]['slug'] = 'code-profiler';
128	$this->buffer[ $key ]['version'] = CODE_PROFILER_VERSION;
129
130	} else {
131	exit('Error: Code Profiler is not active. Please activate it and run this script again.');
132
133	}
134
135	// Data folder must be writable
136	$upload_dir = wp_upload_dir();
137	$dir = $upload_dir['basedir'] .'/'. $this->buffer[ $key ]['slug'];
138
139	$this->buffer[ $key ]['data_dir']['path'] = $this->shorten_path( $dir );
140	$this->buffer[ $key ]['data_dir']['exists'] = file_exists( $dir );
141	$this->buffer[ $key ]['data_dir']['writable'] = is_writable( $dir );
142	}
143
144
145	/**
146	* Check if there are subclasses of the wpdb class and
147	* look for wp-content/db.php
148	*/
149	function check_wpdb( $key ) {
150
151	foreach( get_declared_classes() as $class ) {
152	$reflected = new ReflectionClass( $class );
153	if ( $reflected->isSubclassOf('wpdb') ) {
154	$script = $reflected->getFileName();
155	$this->buffer[ $key ]['extends'][$class] = $this->shorten_path( $script );
156	}
157	}
158	$db_php = $this->shorten_path( WP_CONTENT_DIR .'/db.php');
159	$this->buffer[ $key ][ $db_php ] = file_exists( WP_CONTENT_DIR .'/db.php');
160	}
161
162
163	/**
164	* Check for advanced cache
165	*/
166	private function check_cache( $key ) {
167
168	$this->buffer[ $key ]['cache'] = defined('WP_CACHE') && file_exists(WP_CONTENT_DIR . '/advanced-cache.php');
169	}
170
171
172	/**
173	* Check for reverse proxy or CDN
174	*/
175	private function check_proxy( $key ) {
176
177	$this->buffer[ $key ] = [];
178	$proxies = [
179	'HTTP_X_FORWARDED_FOR',
180	'HTTP_CF_CONNECTING_IP',
181	'HTTP_INCAP_CLIENT_IP'
182	];
183
184	foreach( $proxies as $proxy ) {
185	if (! empty( $_SERVER[ $proxy ] ) ) {
186	$this->buffer[ $key ][ $proxy ] = 1;
187	}
188	}
189
190	}
191
192
193	/**
194	* Retrieve the list of all plugins and sort them
195	* (active or disabled).
196	*/
197	private function get_all_plugins( $key ) {
198
199	if (! function_exists('get_plugins') ) {
200	require_once ABSPATH .'wp-admin/includes/plugin.php';
201	}
202	$plugins = get_plugins();
203	foreach( $plugins as $k => $v ) {
204	if ( $slug = substr( $k, 0, strpos( $k, '/') ) ) {
205	$this->buffer[ $key ][ $slug ] = "{$v['Name']} - {$v['Version']}";
206	}
207	}
208
209	$mu_plugins = get_mu_plugins();
210	foreach( $mu_plugins as $k => $v ) {
211	$this->buffer[ $key ]['mu-plugins'][ $k ] = "{$v['Name']} - {$v['Version']}";
212	}
213
214	}
215
216
217	/**
218	* Retrieve the active theme.
219	*/
220	private function get_theme( $key ) {
221
222	$themes = wp_get_themes();
223	$active = get_option('template');
224	foreach( $themes as $k => $v ) {
225	$version = $v->Version;
226	if ( $k == $active ) {
227	$version .= ' (active)';
228	}
229	$this->buffer[ $key ][ $k ] = "{$v->Name} - $version";
230	}
231	}
232
233
234	/**
235	* Retrieve Code Profiler's configuration
236	*/
237	private function get_cp_config() {
238
239	$cp_options = get_option('code-profiler');
240
241	$list = [
242	'hide_empty_value',
243	'warn_composer',
244	'enable_wpcli',
245	'disable_wpcron',
246	// 'disable_db-php',
247	'http_response'
248	];
249	foreach( $list as $element ) {
250	$this->buffer['options'][ $element ] = isset( $cp_options[ $element ] )? $cp_options[ $element ]:0;
251	}
252	}
253
254	/**
255	* Remove the ABSPATH from a path
256	*/
257	private function shorten_path( $path ) {
258
259	return str_replace( ABSPATH, '', $path );
260	}
261
262	}
263
264	// =====================================================================
265	// EOF
266