← All changes | includes/seo/class-social-images.php +39 -30 2.8.0 → 2.12.0 View file →

		@@ -90,14 +90,14 @@
90	90	}
91	91
92	92	$images = [];
93	93
94		- foreach (self::candidates($post_id) as $url) {
	94	+ foreach (self::candidates($post_id) as $candidate) {
95	95	if (count($images) >= $limit - 1) {
96	96	break;
97	97	}
98	98
99		- $url = self::usable($url);
	99	+ $url = self::usable($candidate['url']);
100	100
101	101	if ('' === $url) {
102	102	continue;
103	103	}
		@@ -108,9 +108,9 @@
108	108	continue;
109	109	}
110	110
111	111	$seen[$print] = true;
112		- $images[] = self::describe($url, $post_id);
	112	+ $images[] = self::describe($url, $post_id, $candidate['attachment_id']);
113	113	}
114	114
115	115	/**
116	116	* Filter the secondary Open Graph images for a page.
		@@ -123,16 +123,20 @@
123	123	return (array) apply_filters('thinkrank_og_extra_images', $images, $post_id);
124	124	}
125	125
126	126	/**
127		- * Candidate URLs, in the order they should be offered.
	127	+ * Candidate images, in the order they should be offered.
128	128	*
	129	+ * Each carries the attachment ID it is believed to come from, where there
	130	+ * is one to be had without asking the database: the featured image's own,
	131	+ * or the `wp-image-{ID}` the editor wrote on a body image (#847).
	132	+ *
129	133	* @since 2.7.0
130	134	* @param int $post_id Post being rendered.
131		- * @return array<int, string>
	135	+ * @return array<int, array{url:string, attachment_id:int}>
132	136	*/
133	137	private static function candidates(int $post_id): array {
134		- $urls = [];
	138	+ $candidates = [];
135	139
136	140	// The featured image. Usually this IS the primary and the fingerprint
137	141	// check drops it; it matters when a per-post social override displaced
138	142	// it, which is exactly the case where a second image is worth offering.
		@@ -141,21 +145,24 @@
141	145	if ($thumbnail_id) {
142	146	$src = wp_get_attachment_image_src($thumbnail_id, 'large');
143	147
144	148	if (is_array($src) && !empty($src[0])) {
145		- $urls[] = (string) $src[0];
	149	+ $candidates[] = [
	150	+ 'url' => (string) $src[0],
	151	+ 'attachment_id' => $thumbnail_id,
	152	+ ];
146	153	}
147	154	}
148	155
149		- foreach (self::from_content($post_id) as $url) {
150		- $urls[] = $url;
	156	+ foreach (self::from_content($post_id) as $candidate) {
	157	+ $candidates[] = $candidate;
151	158	}
152	159
153		- return $urls;
	160	+ return $candidates;
154	161	}
155	162
156	163	/**
157		- * Image URLs in the post body, in document order.
	164	+ * Images in the post body, in document order.
158	165	*
159	166	* Reads the stored content rather than running it through `the_content`.
160	167	* This is called while the document head is being written, and rendering
161	168	* the body there would run every shortcode and block on the page for the
		@@ -162,9 +169,9 @@
162	169	* sake of a few `src` attributes.
163	170	*
164	171	* @since 2.7.0
165	172	* @param int $post_id Post being rendered.
166		- * @return array<int, string>
	173	+ * @return array<int, array{url:string, attachment_id:int}>
167	174	*/
168	175	private static function from_content(int $post_id): array {
169	176	$content = (string) get_post_field('post_content', $post_id);
170	177
		@@ -175,17 +182,20 @@
175	182	if (!preg_match_all('/<img\b[^>]*>/i', $content, $tags)) {
176	183	return [];
177	184	}
178	185
179		- $urls = [];
	186	+ $images = [];
180	187
181	188	foreach ($tags[0] as $tag) {
182	189	if (preg_match('/\bsrc\s*=\s*["\']([^"\']+)["\']/i', $tag, $match)) {
183		- $urls[] = $match[1];
	190	+ $images[] = [
	191	+ 'url' => $match[1],
	192	+ 'attachment_id' => Attachment_Lookup::hint_from_markup($tag),
	193	+ ];
184	194	}
185	195	}
186	196
187		- return $urls;
	197	+ return $images;
188	198	}
189	199
190	200	/**
191	201	* A URL Open Graph can actually use, or '' to skip it.
		@@ -221,34 +231,33 @@
221	231	* to lay out a card before it has fetched the file.
222	232	*
223	233	* @since 2.7.0
224	234	*
225		- * @param string $url Image URL.
226		- * @param int $post_id Post being rendered, for the alt fallback.
	235	+ * @param string $url Image URL.
	236	+ * @param int $post_id Post being rendered, for the alt fallback.
	237	+ * @param int $attachment_id Attachment the URL is believed to come from,
	238	+ * or 0. Checked before it is trusted.
227	239	* @return array<string, mixed>
228	240	*/
229		- private static function describe(string $url, int $post_id): array {
	241	+ private static function describe(string $url, int $post_id, int $attachment_id = 0): array {
230	242	$image = ['url' => $url];
231	243
232		- $attachment_id = (int) attachment_url_to_postid($url);
	244	+ $attachment_id = Attachment_Lookup::id_from_url($url, $attachment_id);
233	245
234	246	if ($attachment_id) {
235		- $meta = wp_get_attachment_metadata($attachment_id);
	247	+ // The file this URL names, which for a body image is usually a
	248	+ // generated size rather than the original upload.
	249	+ $file = Attachment_Lookup::describe($attachment_id, $url);
236	250
237	251	// Vector uploads report 0x0; publishing that as a dimension is
238	252	// invalid, so the companions are omitted rather than zeroed.
239		- $width = is_array($meta) && isset($meta['width']) ? (int) $meta['width'] : 0;
240		- $height = is_array($meta) && isset($meta['height']) ? (int) $meta['height'] : 0;
241		-
242		- if ($width > 0 && $height > 0) {
243		- $image['width'] = $width;
244		- $image['height'] = $height;
	253	+ if ($file['width'] > 0 && $file['height'] > 0) {
	254	+ $image['width'] = $file['width'];
	255	+ $image['height'] = $file['height'];
245	256	}
246	257
247		- $type = (string) get_post_mime_type($attachment_id);
248		-
249		- if ('' !== $type) {
250		- $image['type'] = $type;
	258	+ if ('' !== $file['type']) {
	259	+ $image['type'] = $file['type'];
251	260	}
252	261
253	262	$alt = trim((string) get_post_meta($attachment_id, '_wp_attachment_image_alt', true));
254	263