thinkrank / includes / seo / class-author-archives-manager.php

class-author-archives-manager.php in ThinkRank AI SEO – AI SEO Plugin for WordPress: Schema, XML Sitemaps, Meta Tags, Search Console & Local SEO 2.4.0, at includes/seo/class-author-archives-manager.php

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1	<?php
2	/**
3	* Author Archives Manager
4	*
5	* Handles author archives functionality including redirects
6	*
7	* @package ThinkRank
8	* @subpackage SEO
9	* @since 1.0.0
10	*/
11
12	declare(strict_types=1);
13
14	namespace ThinkRank\SEO;
15
16	// Prevent direct access.
17	if ( ! defined( 'ABSPATH' ) ) {
18	exit;
19	}
20
21	use ThinkRank\Core\Settings;
22
23	/**
24	* Author Archives Manager Class
25	*
26	* @since 1.0.0
27	*/
28	class Author_Archives_Manager {
29
30	/**
31	* Initialize the manager
32	*
33	* @since 1.0.0
34	* @return void
35	*/
36	public function init(): void {
37	add_action('template_redirect', [$this, 'maybe_redirect_author_archives']);
38	add_filter('thinkrank_robots_meta', [$this, 'filter_robots']);
39	add_filter('pre_get_document_title', [$this, 'modify_document_title'], 15);
40	add_action('wp_head', [$this, 'add_meta_description'], 5);
41	}
42
43	/**
44	* Add meta description for author archives
45	*
46	* This is the only place a description is printed for author archives —
47	* SEO_Manager::output_meta_description() returns early on is_author() so
48	* the two never both emit a <meta name="description"> tag.
49	*
50	* @since 1.0.0
51	* @return void
52	*/
53	public function add_meta_description(): void {
54	if (!is_author()) {
55	return;
56	}
57
58	$author_id = get_queried_object_id();
59
60	// A per-author meta description (e.g. imported from another SEO plugin)
61	// overrides the global template.
62	$custom_desc = (string) get_user_meta($author_id, '_thinkrank_meta_description', true);
63	if ($custom_desc !== '') {
64	$this->print_meta_description($custom_desc);
65	return;
66	}
67
68	$settings = Settings::instance();
69	// Default value matches what we set in endpoint
70	$template = $settings->get('author_archives_meta_desc', Settings::DEFAULT_AUTHOR_ARCHIVES_META_DESC);
71	if (empty($template)) {
72	return;
73	}
74
75	// Get variables
76	$author_name = get_the_author_meta('display_name', $author_id);
77	$site_title = get_bloginfo('name');
78
79	$replacements = [
80	'%author_name%' => $author_name,
81	'%site_title%' => $site_title
82	];
83
84	$meta_desc = str_replace(array_keys($replacements), array_values($replacements), $template);
85
86	$this->print_meta_description($meta_desc);
87	}
88
89	/**
90	* Print the description tag with the same framing SEO_Manager uses.
91	*
92	* Keeps author archives consistent with every other page type: the plugin
93	* header comment, the 160-character trim, and the open/close markers.
94	*
95	* @since 1.29.1
96	* @param string $description Resolved description text
97	* @return void
98	*/
99	private function print_meta_description(string $description): void {
100	$description = $this->tidy_whitespace($description);
101	if ($description === '') {
102	return;
103	}
104
105	// Keep the rendered description within the ~160 characters search
106	// engines display. Measure and cut in CHARACTERS: strlen() counts
107	// BYTES, so a Cyrillic/CJK description tripped a limit it was nowhere
108	// near, and wp_trim_words() cuts by WORD COUNT, so a long-worded
109	// description sailed past the cap entirely. Three units, three
110	// different answers.
111	$description = $this->trim_to_length($description, self::DESCRIPTION_MAX_LENGTH);
112
113	// Opens the block through SEO_Manager so its closing comment, printed
114	// on wp_head at priority 99, knows an opener was emitted.
115	\ThinkRank\Frontend\SEO_Manager::note_opening_comment();
116	echo "<!-- ThinkRank SEO Meta Description -->\n";
117	echo '<meta name="description" content="' . esc_attr($description) . '" />' . "\n";
118	echo "<!-- /ThinkRank SEO Meta Description -->\n";
119	}
120
121	/**
122	* Characters search engines display for a meta description.
123	*
124	* @since 2.2.0
125	* @var int
126	*/
127	private const DESCRIPTION_MAX_LENGTH = 160;
128
129	/**
130	* Trim a description to a character budget, multibyte-safe.
131	*
132	* Cuts on a word boundary when one is available inside the budget, so the
133	* result does not end mid-word; falls back to a hard character cut for
134	* scripts that do not use spaces (CJK), where a word-boundary search would
135	* find nothing and return the string untouched.
136	*
137	* @since 2.2.0
138	* @param string $description Description text.
139	* @param int $limit Maximum length in characters, ellipsis included.
140	* @return string
141	*/
142	private function trim_to_length(string $description, int $limit): string {
143	if (mb_strlen($description) <= $limit) {
144	return $description;
145	}
146
147	// Reserve one character for the ellipsis.
148	$budget = $limit - 1;
149	$cut = mb_substr($description, 0, $budget);
150	$last_gap = mb_strrpos($cut, ' ');
151
152	// Only honour a word boundary that is not absurdly early — otherwise a
153	// long unbroken token would collapse the description to a few chars.
154	if (false !== $last_gap && $last_gap > (int) ($budget * 0.6)) {
155	$cut = mb_substr($cut, 0, $last_gap);
156	}
157
158	return rtrim($cut) . '…';
159	}
160
161	/**
162	* Modify document title for author archives
163	*
164	* @since 1.0.0
165	* @param string $title Original title
166	* @return string Modified title
167	*/
168	public function modify_document_title(string $title): string {
169	if (is_author()) {
170	$author_id = get_queried_object_id();
171
172	// A per-author SEO title (e.g. imported from another SEO plugin)
173	// overrides the global template entirely.
174	$custom_title = (string) get_user_meta($author_id, '_thinkrank_seo_title', true);
175	if ($custom_title !== '') {
176	return $this->with_page_suffix($custom_title);
177	}
178
179	$settings = Settings::instance();
180	$template = $settings->get('author_archives_title', Settings::DEFAULT_AUTHOR_ARCHIVES_TITLE);
181
182	if (empty($template)) {
183	return $title;
184	}
185
186	// Get variables
187	$author_name = get_the_author_meta('display_name', $author_id);
188	$site_title = get_bloginfo('name');
189
190	// Separator
191	$separator = '-';
192	if (class_exists('ThinkRank\SEO\Site_Identity_Manager')) {
193	$separator = \ThinkRank\SEO\Site_Identity_Manager::get_active_separator_symbol();
194	}
195
196	// %page% resolves to nothing here. This filter runs at priority 15,
197	// after SEO_Manager's at priority 1, so its own page indicator was
198	// the one that reached the page — and it rendered without the
199	// separator the rest of the site uses ("admin \| tr Page 2" against
200	// "Uncategorized \| tr \| Page 2" everywhere else). The token stays
201	// recognised so a template that already contains it does not leak
202	// the literal string; the indicator itself comes from the one
203	// helper every other context uses (#397 review).
204	$replacements = [
205	'%author_name%' => $author_name,
206	'%site_title%' => $site_title,
207	'%separator%' => $separator,
208	'%page%' => ''
209	];
210
211	$rendered = str_replace(array_keys($replacements), array_values($replacements), $template);
212
213	return $this->with_page_suffix($this->tidy_whitespace($rendered));
214	}
215	return $title;
216	}
217
218	/**
219	* Append the shared page indicator, when SEO_Manager is available.
220	*
221	* @since 2.0.1
222	* @param string $title Rendered author-archive title.
223	* @return string
224	*/
225	private function with_page_suffix(string $title): string {
226	if (!class_exists('\ThinkRank\Frontend\SEO_Manager')) {
227	return $title;
228	}
229
230	return \ThinkRank\Frontend\SEO_Manager::with_page_suffix($title);
231	}
232
233	/**
234	* Collapse the gaps left by variables that resolved to nothing.
235	*
236	* %page% is empty on an unpaginated archive, so the stock template ended
237	* every author <title> with a stray trailing space; two empty variables in
238	* a row would leave a double space mid-string.
239	*
240	* @since 1.29.1
241	* @param string $value Rendered template
242	* @return string Template with runs of whitespace collapsed and trimmed
243	*/
244	private function tidy_whitespace(string $value): string {
245	return trim((string) preg_replace('/\s+/u', ' ', $value));
246	}
247
248	/**
249	* Filter robots meta tag
250	*
251	* @since 1.0.0
252	* @param array $robots Robots meta array
253	* @return array Filtered robots meta
254	*/
255	public function filter_robots(array $robots): array {
256	if (is_author()) {
257	$settings = Settings::instance();
258	$index = $settings->get('author_archives_index', true);
259
260	if (!$index) {
261	// Remove 'index' if present
262	$index_key = array_search('index', $robots, true);
263	if ($index_key !== false) {
264	unset($robots[$index_key]);
265	}
266	// Add 'noindex' if not present
267	if (!in_array('noindex', $robots, true)) {
268	$robots[] = 'noindex';
269	}
270	} else {
271	// If showing in search results, check if empty archives should be hidden
272	$show_empty = $settings->get('author_archives_show_empty', false);
273	if (!$show_empty) {
274	$author_id = get_queried_object_id();
275	// Check if author has any published posts
276	$post_count = count_user_posts($author_id, 'post', true); // true = only public posts
277	if ((int) $post_count === 0) {
278	// Remove 'index' if present
279	$index_key = array_search('index', $robots, true);
280	if ($index_key !== false) {
281	unset($robots[$index_key]);
282	}
283	// Add 'noindex' if not present
284	if (!in_array('noindex', $robots, true)) {
285	$robots[] = 'noindex';
286	}
287	}
288	}
289	}
290	}
291
292	return array_values($robots);
293	}
294
295	/**
296	* Redirect author archives to homepage if disabled
297	*
298	* @since 1.0.0
299	* @return void
300	*/
301	public function maybe_redirect_author_archives(): void {
302	if (is_author()) {
303	$settings = Settings::instance();
304	// Default to true (enabled)
305	$enabled = $settings->get('author_archives_enabled', true);
306
307	if (!$enabled) {
308	// 302, not 301. This redirect lasts exactly as long as the
309	// setting stays off, but a 301 is cached by browsers and CDNs
310	// indefinitely — so turning author archives back on could not
311	// undo it for anyone who had already been redirected, and there
312	// was no server-side way to fix that.
313	wp_safe_redirect(home_url(), 302);
314	exit;
315	}
316	}
317	}
318	}
319