jch-optimize / src / Platform / Html.php

Html.php in JCH Optimize trunk, at src/Platform/Html.php

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1	<?php
2	/**
3	* JCH Optimize - Performs several front-end optimizations for fast downloads
4	*
5	* @package jchoptimize/wordpress-platform
6	* @author Samuel Marshall <samuel@jch-optimize.net>
7	* @copyright Copyright (c) 2020 Samuel Marshall / JCH Optimize
8	* @license GNU/GPLv3, or later. See LICENSE file
9	*
10	* If LICENSE file missing, see <http://www.gnu.org/licenses/>.
11	*/
12
13	namespace JchOptimize\WordPress\Platform;
14
15	defined('_WP_EXEC') or die('Restricted access');
16
17	use _JchOptimizeVendor\V91\GuzzleHttp\Exception\GuzzleException;
18	use _JchOptimizeVendor\V91\GuzzleHttp\RequestOptions;
19	use _JchOptimizeVendor\V91\Psr\Http\Client\ClientInterface;
20	use _JchOptimizeVendor\V91\Psr\Log\LoggerAwareInterface;
21	use _JchOptimizeVendor\V91\Psr\Log\LoggerAwareTrait;
22	use JchOptimize\Core\Exception;
23	use JchOptimize\Core\Platform\HtmlInterface;
24	use JchOptimize\Core\Platform\ProfilerInterface;
25	use JchOptimize\Core\Platform\UtilityInterface;
26	use JchOptimize\Core\Uri\Uri;
27	use JchOptimize\Core\Uri\UriComparator;
28	use JchOptimize\Core\Uri\Utils;
29
30	use function __;
31	use function array_merge;
32	use function array_slice;
33	use function get_nav_menu_locations;
34	use function get_registered_nav_menus;
35	use function home_url;
36	use function microtime;
37	use function parse_str;
38	use function rtrim;
39	use function wp_get_nav_menu_items;
40	use function wp_get_nav_menus;
41
42	class Html implements HtmlInterface, LoggerAwareInterface
43	{
44	use LoggerAwareTrait;
45
46	public function __construct(
47	private ClientInterface $http,
48	private ProfilerInterface $profiler,
49	private UtilityInterface $utility
50	) {
51	}
52
53	/**
54	* @throws GuzzleException
55	*/
56	public function getHomePageHtml(): string
57	{
58	JCH_DEBUG ? $this->profiler->mark('beforeGetHtml') : null;
59
60	$url = home_url() . '/?jchbackend=1';
61
62	try {
63
64
65	$response = $this->http->get($url, ['Accept-Encoding' => 'identity;q=0']);
66
67	if ($response->getStatusCode() != 200) {
68	throw new Exception\RuntimeException(
69	__(
70	'Failed fetching front end HTML with response code ' . $response->getStatusCode(),
71	'jch-optimize'
72	)
73	);
74	}
75
76	JCH_DEBUG ? $this->profiler->mark('afterGetHtml') : null;
77
78
79	$body = $response->getBody();
80	//Set pointer to beginning of stream.
81	$body->rewind();
82
83	return $body->getContents();
84	} catch (\Exception $e) {
85	$this->logger?->error($url . ': ' . $e->getMessage());
86
87	JCH_DEBUG ? $this->profiler->mark('afterGetHtml)') : null;
88
89	throw new Exception\RuntimeException(
90	__(
91	'Load or refresh the front-end site first then refresh this page '
92	. 'to populate the multi select exclude lists.',
93	'jch-optimize'
94	)
95	);
96	}
97	}
98
99	public function getMainMenuItemsHtmls($iLimit = 5, $bIncludeUrls = false): array
100	{
101	$aMenuUrls = $this->getMenuUrls();
102	$aMenuUrls = array_slice($aMenuUrls, 0, $iLimit);
103
104	$aHtmls = [];
105
106	//Limit the time spent on this
107	$iTimer = microtime(true);
108
109	foreach ($aMenuUrls as $menuUrl) {
110	try {
111	if ($bIncludeUrls) {
112	$aHtmls[] = [
113	'url' => $menuUrl,
114	'html' => $this->getHtml($menuUrl)
115	];
116	} else {
117	$aHtmls[] = $this->getHtml($menuUrl);
118	}
119	} catch (Exception\ExceptionInterface $e) {
120	$this->logger?->error((string)$e);
121	}
122
123	if (microtime(true) > $iTimer + 10.0) {
124	break;
125	}
126	}
127
128	return $aHtmls;
129	}
130
131	protected function getMenuUrls(): array
132	{
133	$homeUrl = rtrim(home_url(), '/\\');
134	//Start array of oMenu urls with home page
135	$aMenuUrls = [$homeUrl];
136
137	$aMenus = wp_get_nav_menus();
138	//If nothing just work with the home url
139	if (! $aMenus) {
140	return $aMenuUrls;
141	}
142
143	$locations = get_registered_nav_menus();
144	$aMenuLocations = get_nav_menu_locations();
145
146	//Iterate through menus to find primary
147	foreach ($aMenus as $oMenu) {
148	if ($oMenu->term_id == $aMenuLocations['menu-primary']) {
149	break;
150	}
151	}
152
153	$aMenuItems = wp_get_nav_menu_items($oMenu);
154
155	foreach ($aMenuItems as $oMenuItem) {
156	if (rtrim($oMenuItem->url, '/\\') == $homeUrl) {
157	continue;
158	}
159
160	if (! $cleanUrl = $this->cleanUrl($oMenuItem->url)) {
161	continue;
162	}
163
164	if (!UriComparator::isCrossOrigin(Utils::uriFor($cleanUrl))) {
165	$aMenuUrls[] = $cleanUrl;
166	}
167	}
168
169	return $aMenuUrls;
170	}
171
172	private function cleanUrl(string $oMenuItem): string
173	{
174	$oUri = Utils::uriFor($oMenuItem);
175
176	return (string)$oUri;
177	}
178
179	/**
180	* @throws Exception\RuntimeException
181	* @throws GuzzleException
182	*/
183	protected function getHtml(string $url): string
184	{
185	$oUri = Utils::uriFor($url);
186	$sQuery = $oUri->getQuery();
187	parse_str($sQuery, $aQuery);
188	$aNewQuery = array_merge($aQuery, array('jchbackend' => '1'));
189	$oUri = Uri::withQueryValues($oUri, $aNewQuery);
190
191	$options = [
192	RequestOptions::HEADERS => [
193	'Accept-Enconding' => 'identity;q=0'
194	]
195	];
196
197	$response = $this->http->get($oUri, $options);
198
199	if ($response->getStatusCode() != 200) {
200	throw new Exception\RuntimeException(
201	'Failed fetching HTML: ' . $url . ' - Response code: ' . $response->getStatusCode()
202	);
203	}
204
205	$body = $response->getBody();
206	$body->rewind();
207
208	return $body->getContents();
209	}
210	}
211