wp-optimize / central / host.php

host.php in WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance 3.2.20, at central/host.php

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1	<?php
2
3	if (!defined('ABSPATH')) die('No direct access.');
4
5	/**
6	* The template definition for UpdraftCentral host
7	*/
8	abstract class UpdraftCentral_Host {
9
10	public $plugin_name;
11
12	public $translations;
13
14	public $error_reporting_stop_when_logged = false;
15
16	public $no_deprecation_warnings = false;
17
18	private $jobdata;
19
20	abstract protected function load_updraftcentral();
21	abstract protected function is_host_dir_set();
22	abstract protected function get_host_dir();
23	abstract protected function get_version();
24	abstract public function log($line, $level = 'notice', $uniq_id = false);
25
26	/**
27	* Class constructor
28	*/
29	public function __construct() {
30	add_action('wp_ajax_updraft_central_ajax', array($this, 'updraft_central_ajax_handler'));
31	}
32
33	/**
34	* Returns the plugin name associated with this host class
35	*
36	* @return string
37	*/
38	public function get_plugin_name() {
39	return $this->plugin_name;
40	}
41
42	/**
43	* Retrieves or shows a message from the translations collection based on its identifier key
44	*
45	* @param string $key The ID of the the message
46	* @param bool $echo Indicate whether the message is to be shown directly (echoed) or just for retrieval
47	*
48	* @return string/void
49	*/
50	public function retrieve_show_message($key, $echo = false) {
51	if (empty($key) \|\| !isset($this->translations[$key])) return '';
52
53	if ($echo) {
54	echo $this->translations[$key];
55	return;
56	}
57
58	return $this->translations[$key];
59	}
60
61	/**
62	* Adds a section to a designated area primarily used for generating UpdraftCentral keys
63	*
64	* @return void
65	*/
66	public function debugtools_dashboard() {
67	if (!current_user_can('manage_options')) return;
68
69	global $updraftcentral_main;
70
71	if (!class_exists('UpdraftCentral_Main')) {
72	if (defined('UPDRAFTCENTRAL_CLIENT_DIR') && file_exists(UPDRAFTCENTRAL_CLIENT_DIR.'/bootstrap.php')) {
73	include_once(UPDRAFTCENTRAL_CLIENT_DIR.'/bootstrap.php');
74	$updraftcentral_main = new UpdraftCentral_Main();
75	}
76	}
77
78	if ($updraftcentral_main) {
79	$updraftcentral_main->debugtools_dashboard();
80	}
81	}
82
83	/**
84	* Whether the current user can perform key control AJAX actions
85	*
86	* @return Boolean
87	*/
88	public function current_user_can_ajax() {
89	return current_user_can('manage_options');
90	}
91
92	/**
93	* Handles ajax requests coming from the section or area generated by the
94	* "debugtools_dashboard" method (below)
95	*
96	* @return void
97	*/
98	public function updraft_central_ajax_handler() {
99	global $updraftcentral_main;
100
101	$nonce = empty($_REQUEST['nonce']) ? '' : $_REQUEST['nonce'];
102	if (empty($nonce) \|\| !wp_verify_nonce($nonce, 'updraftcentral-request-nonce') \|\| !$this->current_user_can_ajax() \|\| empty($_REQUEST['subaction'])) die('Security check');
103
104	if (is_a($updraftcentral_main, 'UpdraftCentral_Main')) {
105
106	$subaction = $_REQUEST['subaction'];
107	if ($this->is_action_whitelisted($subaction) && is_callable(array($updraftcentral_main, $subaction))) {
108
109	// Undo WP's slashing of POST data
110	$data = $this->wp_unslash($_POST);
111
112	// TODO: Once all commands come through here and through updraft_send_command(), the data should always come from this attribute (once updraft_send_command() is modified appropriately).
113	if (isset($data['action_data'])) $data = $data['action_data'];
114	try {
115
116	$results = call_user_func(array($updraftcentral_main, $subaction), $data);
117	} catch (Exception $e) {
118	$log_message = 'PHP Fatal Exception error ('.get_class($e).') has occurred during '.$subaction.' subaction. Error Message: '.$e->getMessage().' (Code: '.$e->getCode().', line '.$e->getLine().' in '.$e->getFile().')';
119	error_log($log_message);
120	echo json_encode(array(
121	'fatal_error' => true,
122	'fatal_error_message' => $log_message
123	));
124	die;
125	// @codingStandardsIgnoreLine
126	} catch (Error $e) {
127	$log_message = 'PHP Fatal error ('.get_class($e).') has occurred during '.$subaction.' subaction. Error Message: '.$e->getMessage().' (Code: '.$e->getCode().', line '.$e->getLine().' in '.$e->getFile().')';
128	error_log($log_message);
129	echo json_encode(array(
130	'fatal_error' => true,
131	'fatal_error_message' => $log_message
132	));
133	die;
134	}
135	if (is_wp_error($results)) {
136	$results = array(
137	'result' => false,
138	'error_code' => $results->get_error_code(),
139	'error_message' => $results->get_error_message(),
140	'error_data' => $results->get_error_data(),
141	);
142	}
143
144	if (is_string($results)) {
145	// A handful of legacy methods, and some which are directly the source for iframes, for which JSON is not appropriate.
146	echo $results;
147	} else {
148	echo json_encode($results);
149	}
150	die;
151	}
152	}
153	die;
154	}
155
156	/**
157	* Verifies whether the submitted action is valid and allowed for execution over AJAX
158	*
159	* @param string $action The action to execute
160	*
161	* @return bool
162	*/
163	private function is_action_whitelisted($action) {
164	$allowed_actions = array('delete_key', 'get_log', 'create_key');
165	return in_array($action, $allowed_actions);
166	}
167
168	/**
169	* Retrieves the filter used by UpdraftCentral to log errors or certain events
170	*
171	* @return string
172	*/
173	public function get_logline_filter() {
174	return 'updraftcentral_logline';
175	}
176
177	/**
178	* Gets an RPC object, and sets some defaults on it that we always want
179	*
180	* @param string $indicator_name indicator name
181	* @return array
182	*/
183	public function get_udrpc($indicator_name = 'migrator.updraftplus.com') {
184	if (!class_exists('UpdraftPlus_Remote_Communications')) include_once($this->get_host_dir().'/vendor/team-updraft/common-libs/src/updraft-rpc/class-udrpc.php');
185	$ud_rpc = new UpdraftPlus_Remote_Communications($indicator_name);
186	$ud_rpc->set_can_generate(true);
187	return $ud_rpc;
188	}
189
190	/**
191	* Noop method.
192	* Depending on the host plugin this method may or may not be used.
193	*
194	* N.B. The UpdraftPlus plugin is using and overriding this method in its host file.
195	*
196	* @param boolean $register Indicate whether to add or remote filter hooks
197	* @ignore
198	*/
199	// @codingStandardsIgnoreLine
200	public function register_wp_http_option_hooks($register = true) {}
201
202	/**
203	* Remove slashes from a string or array of strings.
204	*
205	* The function wp_unslash() is WP 3.6+, so therefore we have a compatibility method here
206	*
207	* @param String\|Array $value String or array of strings to unslash.
208	* @return String\|Array Unslashed $value
209	*/
210	public function wp_unslash($value) {
211	return function_exists('wp_unslash') ? wp_unslash($value) : stripslashes_deep($value);
212	}
213
214	/**
215	* Generate a log line based from the PHP error information
216	*
217	* @param Integer $errno Error number
218	* @param String $errstr Error string
219	* @param String $errfile Error file
220	* @param String $errline Line number where the error occurred
221	*
222	* @return string\|bool
223	*/
224	public function php_error_to_logline($errno, $errstr, $errfile, $errline) {
225	switch ($errno) {
226	case 1:
227	$e_type = 'E_ERROR';
228	break;
229	case 2:
230	$e_type = 'E_WARNING';
231	break;
232	case 4:
233	$e_type = 'E_PARSE';
234	break;
235	case 8:
236	$e_type = 'E_NOTICE';
237	break;
238	case 16:
239	$e_type = 'E_CORE_ERROR';
240	break;
241	case 32:
242	$e_type = 'E_CORE_WARNING';
243	break;
244	case 64:
245	$e_type = 'E_COMPILE_ERROR';
246	break;
247	case 128:
248	$e_type = 'E_COMPILE_WARNING';
249	break;
250	case 256:
251	$e_type = 'E_USER_ERROR';
252	break;
253	case 512:
254	$e_type = 'E_USER_WARNING';
255	break;
256	case 1024:
257	$e_type = 'E_USER_NOTICE';
258	break;
259	case 2048:
260	$e_type = 'E_STRICT';
261	break;
262	case 4096:
263	$e_type = 'E_RECOVERABLE_ERROR';
264	break;
265	case 8192:
266	$e_type = 'E_DEPRECATED';
267	break;
268	case 16384:
269	$e_type = 'E_USER_DEPRECATED';
270	break;
271	case 30719:
272	$e_type = 'E_ALL';
273	break;
274	default:
275	$e_type = "E_UNKNOWN ($errno)";
276	break;
277	}
278
279	if (false !== stripos($errstr, 'table which is not valid in this version of Gravity Forms')) return false;
280
281	if (!is_string($errstr)) $errstr = serialize($errstr);
282
283	if (0 === strpos($errfile, ABSPATH)) $errfile = substr($errfile, strlen(ABSPATH));
284
285	if ('E_DEPRECATED' == $e_type && !empty($this->no_deprecation_warnings)) {
286	return false;
287	}
288
289	return "PHP event: code $e_type: $errstr (line $errline, $errfile)";
290	}
291
292	/**
293	* PHP error handler
294	*
295	* @param Integer $errno Error number
296	* @param String $errstr Error string
297	* @param String $errfile Error file
298	* @param String $errline Line number where the error occurred
299	*
300	* @return bool
301	*/
302	public function php_error($errno, $errstr, $errfile, $errline) {
303	if (0 == error_reporting()) return true;
304	$logline = $this->php_error_to_logline($errno, $errstr, $errfile, $errline);
305	if (false !== $logline) $this->log($logline, 'notice', 'php_event');
306	// Pass it up the chain
307	return $this->error_reporting_stop_when_logged;
308	}
309	}
310