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Image.php
955 lines
| 1 | <?php |
| 2 | /** |
| 3 | * This class builds/retrieves the thumbnail image of each popular posts. |
| 4 | * |
| 5 | * |
| 6 | * @package WordPressPopularPosts |
| 7 | * @author Hector Cabrera <me@cabrerahector.com> |
| 8 | */ |
| 9 | |
| 10 | namespace WordPressPopularPosts; |
| 11 | |
| 12 | class Image { |
| 13 | |
| 14 | /** |
| 15 | * Default thumbnail. |
| 16 | * |
| 17 | * @since 2.2.0 |
| 18 | * @var string |
| 19 | */ |
| 20 | private $default_thumbnail = ''; |
| 21 | |
| 22 | /** |
| 23 | * Plugin uploads directory. |
| 24 | * |
| 25 | * @since 3.0.4 |
| 26 | * @var array |
| 27 | */ |
| 28 | private $uploads_dir = []; |
| 29 | |
| 30 | /** |
| 31 | * Admin settings. |
| 32 | * |
| 33 | * @since 5.0.0 |
| 34 | * @var array |
| 35 | */ |
| 36 | private $admin_options = []; |
| 37 | |
| 38 | /** |
| 39 | * Available image sizes. |
| 40 | * |
| 41 | * @since 5.0.0 |
| 42 | * @var array |
| 43 | */ |
| 44 | private $available_sizes = []; |
| 45 | |
| 46 | /** |
| 47 | * Available image descriptors. |
| 48 | * |
| 49 | * @since 5.3.0 |
| 50 | * @var array |
| 51 | */ |
| 52 | private $descriptors = []; |
| 53 | |
| 54 | /** |
| 55 | * Construct. |
| 56 | * |
| 57 | * @since 4.0.0 |
| 58 | * @param array $admin_options |
| 59 | */ |
| 60 | public function __construct(array $admin_options) |
| 61 | { |
| 62 | $this->admin_options = $admin_options; |
| 63 | |
| 64 | // Set default thumbnail |
| 65 | $this->default_thumbnail = plugins_url('assets/images/no_thumb.jpg', dirname(__FILE__, 1)); |
| 66 | |
| 67 | if ( Helper::is_image_url($this->admin_options['tools']['thumbnail']['default']) ) { |
| 68 | $this->default_thumbnail = $this->admin_options['tools']['thumbnail']['default']; |
| 69 | } |
| 70 | |
| 71 | // Set uploads folder |
| 72 | $wp_upload_dir = wp_get_upload_dir(); |
| 73 | $this->uploads_dir['basedir'] = $wp_upload_dir['basedir'] . '/wordpress-popular-posts'; |
| 74 | $this->uploads_dir['baseurl'] = $wp_upload_dir['baseurl'] . '/wordpress-popular-posts'; |
| 75 | |
| 76 | if ( ! is_dir($this->uploads_dir['basedir']) ) { |
| 77 | // Couldn't create the folder, store thumbnails in Uploads |
| 78 | if ( ! wp_mkdir_p($this->uploads_dir['basedir']) ) { |
| 79 | $this->uploads_dir['basedir'] = $wp_upload_dir['basedir']; |
| 80 | $this->uploads_dir['baseurl'] = $wp_upload_dir['baseurl']; |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | // Set descriptors |
| 85 | $this->descriptors = ['1.5', '2', '2.5', '3']; |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * Get WPP's uploads folder. |
| 90 | * |
| 91 | * @since 4.0.0 |
| 92 | * @access public |
| 93 | * @return array|bool |
| 94 | */ |
| 95 | public function get_plugin_uploads_dir() |
| 96 | { |
| 97 | if ( is_array($this->uploads_dir) && ! empty($this->uploads_dir) ) { |
| 98 | return $this->uploads_dir; |
| 99 | } |
| 100 | return false; |
| 101 | } |
| 102 | |
| 103 | /** |
| 104 | * Returns an image. |
| 105 | * |
| 106 | * @since 5.0.0 |
| 107 | * @param int $post_id Post ID |
| 108 | * @param array $size Image size (width & height) |
| 109 | * @param string $source Image source |
| 110 | * @param bool $crop Whether to crop the image or not |
| 111 | * @param string $build Whether to build the image or get an existing one |
| 112 | * @return string |
| 113 | */ |
| 114 | public function get(int $post_id, array $size, string $source, bool $crop = true, ?string $build = 'manual') |
| 115 | { |
| 116 | // Bail, $post_id is not an integer |
| 117 | if ( ! is_numeric($post_id) ) { |
| 118 | return ''; |
| 119 | } |
| 120 | |
| 121 | $alt = ''; |
| 122 | $classes = ['wpp-thumbnail', 'wpp_' . $source]; |
| 123 | $filename = $post_id . '-' . $source . '-' . $size[0] . 'x' . $size[1]; |
| 124 | $cached = $this->exists($filename); |
| 125 | |
| 126 | // We have a thumbnail already, return it |
| 127 | if ( $cached ) { |
| 128 | $classes[] = 'wpp_cached_thumb'; |
| 129 | |
| 130 | /** |
| 131 | * Filters CSS classes assigned to the thumbnail |
| 132 | * |
| 133 | * @since 5.0.0 |
| 134 | * @param array CSS classes |
| 135 | * @param int The post ID |
| 136 | * @return array The new CSS classes |
| 137 | */ |
| 138 | $classes = apply_filters( |
| 139 | 'wpp_thumbnail_class_attribute', |
| 140 | $classes, |
| 141 | $post_id |
| 142 | ); |
| 143 | |
| 144 | /** |
| 145 | * Filters ALT attribute assigned to the thumbnail |
| 146 | * |
| 147 | * @since 5.0.0 |
| 148 | * @param string Original ALT attribute |
| 149 | * @param int The post ID |
| 150 | * @return string The new ALT attribute |
| 151 | */ |
| 152 | $alt = apply_filters( |
| 153 | 'wpp_thumbnail_alt_attribute', |
| 154 | $this->get_alt_attribute($post_id, $source), |
| 155 | $post_id |
| 156 | ); |
| 157 | |
| 158 | return $this->render( |
| 159 | $cached, |
| 160 | $size, |
| 161 | is_array($classes) ? implode(' ', $classes) : 'wpp-thumbnail wpp_' . $source, |
| 162 | is_string($alt) ? $alt : '' |
| 163 | ); |
| 164 | } |
| 165 | |
| 166 | $thumb_url = null; |
| 167 | |
| 168 | // Return image as-is, no need to create a new thumbnail |
| 169 | if ( |
| 170 | ( 'custom_field' == $source && ! $this->admin_options['tools']['thumbnail']['resize'] ) |
| 171 | || ( 'featured' == $source && 'predefined' == $build ) |
| 172 | ){ |
| 173 | // Get custom field image URL |
| 174 | if ( 'custom_field' == $source && ! $this->admin_options['tools']['thumbnail']['resize'] ) { |
| 175 | $thumb_url = get_post_meta( |
| 176 | $post_id, |
| 177 | $this->admin_options['tools']['thumbnail']['field'], |
| 178 | true |
| 179 | ); |
| 180 | |
| 181 | if ( ! $thumb_url || ! Helper::is_image_url($thumb_url) ) { |
| 182 | // Is this an attachment ID instead of an image URL? |
| 183 | if ( Helper::is_number($thumb_url) ) { |
| 184 | $thumb_url = wp_get_attachment_image_src($thumb_url, 'full'); |
| 185 | $thumb_url = is_array($thumb_url) ? $thumb_url[0] : null; |
| 186 | } else { |
| 187 | $thumb_url = null; |
| 188 | } |
| 189 | } |
| 190 | } |
| 191 | // Get Post Thumbnail |
| 192 | else { |
| 193 | if ( |
| 194 | current_theme_supports('post-thumbnails') |
| 195 | && has_post_thumbnail($post_id) |
| 196 | ) { |
| 197 | // Find corresponding image size |
| 198 | $stock_size = null; |
| 199 | $images_sizes = $this->get_sizes(null); |
| 200 | |
| 201 | foreach ( $images_sizes as $name => $attr ) : |
| 202 | if ( |
| 203 | $attr['width'] == $size[0] |
| 204 | && $attr['height'] == $size[1] |
| 205 | && $attr['crop'] == $crop |
| 206 | ) { |
| 207 | $stock_size = $name; |
| 208 | break; |
| 209 | } |
| 210 | endforeach; |
| 211 | |
| 212 | // Couldn't find a matching size so let's go with width/height combo instead |
| 213 | // (this should never happen but better safe than sorry!) |
| 214 | if ( null == $stock_size ) { |
| 215 | $stock_size = $size; |
| 216 | } |
| 217 | |
| 218 | /** |
| 219 | * Filters CSS classes assigned to the thumbnail |
| 220 | * |
| 221 | * @since 5.0.0 |
| 222 | * @param array CSS classes |
| 223 | * @param int The post ID |
| 224 | * @return array The new CSS classes |
| 225 | */ |
| 226 | $classes = apply_filters( |
| 227 | 'wpp_thumbnail_class_attribute', |
| 228 | $classes, |
| 229 | $post_id |
| 230 | ); |
| 231 | |
| 232 | $featured_image = get_the_post_thumbnail( |
| 233 | $post_id, |
| 234 | $stock_size |
| 235 | ); |
| 236 | |
| 237 | if ( strpos($featured_image, 'class="') && is_array($classes) && ! empty($classes) ) { |
| 238 | $featured_image = str_replace('class="', 'class="' . esc_attr(implode(' ', $classes)) . ' ', $featured_image); |
| 239 | } |
| 240 | |
| 241 | if ( $this->admin_options['tools']['thumbnail']['lazyload'] && false == strpos($featured_image, 'loading="lazy"') ) { |
| 242 | $featured_image = str_replace('src="', 'loading="lazy" src="', $featured_image); |
| 243 | } |
| 244 | |
| 245 | return $featured_image; |
| 246 | } |
| 247 | } |
| 248 | } |
| 249 | // Build a new thumbnail and return it |
| 250 | else { |
| 251 | $file_path = null; |
| 252 | |
| 253 | if ( 'custom_field' == $source && $this->admin_options['tools']['thumbnail']['resize'] ) { |
| 254 | $thumb_url = get_post_meta( |
| 255 | $post_id, |
| 256 | $this->admin_options['tools']['thumbnail']['field'], |
| 257 | true |
| 258 | ); |
| 259 | |
| 260 | if ( ! $thumb_url || ! Helper::is_image_url($thumb_url) ) { |
| 261 | // Is this an attachment ID instead of an image URL? |
| 262 | // If so, try to fetch the image |
| 263 | if ( Helper::is_number($thumb_url) ) { |
| 264 | $thumb_url = wp_get_attachment_image_src($thumb_url, 'full'); |
| 265 | $thumb_url = is_array($thumb_url) ? $thumb_url[0] : null; |
| 266 | } else { |
| 267 | $thumb_url = null; |
| 268 | } |
| 269 | } |
| 270 | |
| 271 | if ( $thumb_url && Helper::is_image_url($thumb_url) ) { |
| 272 | $file_path = $this->url_to_path($thumb_url, $post_id); |
| 273 | } |
| 274 | } else { |
| 275 | $file_meta = $this->get_file_meta($post_id, $source); |
| 276 | |
| 277 | if ( is_array($file_meta) && isset($file_meta['path']) ) { |
| 278 | $alt = isset($file_meta['alt']) ? $file_meta['alt'] : ''; |
| 279 | $file_path = $file_meta['path']; |
| 280 | } |
| 281 | } |
| 282 | |
| 283 | if ( $file_path ) { |
| 284 | $extension = pathinfo($file_path, PATHINFO_EXTENSION); |
| 285 | $thumb_url = $this->resize( |
| 286 | $file_path, |
| 287 | $filename . '.' . $extension, |
| 288 | $size, |
| 289 | $crop |
| 290 | ); |
| 291 | } |
| 292 | } |
| 293 | |
| 294 | if ( ! $thumb_url ) { |
| 295 | $classes[] = 'wpp_def_no_src'; |
| 296 | $thumb_url = $this->get_default_url($post_id); |
| 297 | } |
| 298 | |
| 299 | /** |
| 300 | * Filters CSS classes assigned to the thumbnail |
| 301 | * |
| 302 | * @since 5.0.0 |
| 303 | * @param array CSS classes |
| 304 | * @param int The post ID |
| 305 | * @return array The new CSS classes |
| 306 | */ |
| 307 | $classes = apply_filters( |
| 308 | 'wpp_thumbnail_class_attribute', |
| 309 | $classes, |
| 310 | $post_id |
| 311 | ); |
| 312 | |
| 313 | /** |
| 314 | * Filters ALT attribute assigned to the thumbnail |
| 315 | * |
| 316 | * @since 5.0.0 |
| 317 | * @param string Original ALT attribute |
| 318 | * @param int The post ID |
| 319 | * @return string The new ALT attribute |
| 320 | */ |
| 321 | $alt = apply_filters( |
| 322 | 'wpp_thumbnail_alt_attribute', |
| 323 | $this->get_alt_attribute($post_id, $source), |
| 324 | $post_id |
| 325 | ); |
| 326 | |
| 327 | return $this->render( |
| 328 | $thumb_url, |
| 329 | $size, |
| 330 | is_array($classes) ? implode(' ', $classes) : 'wpp-thumbnail wpp_' . $source, |
| 331 | is_string($alt) ? $alt : '' |
| 332 | ); |
| 333 | } |
| 334 | |
| 335 | /** |
| 336 | * Checks whether a given thumbnail exists. |
| 337 | * |
| 338 | * @since 5.0.0 |
| 339 | * @access private |
| 340 | * @param string $filename |
| 341 | * @return string|bool Full URL to image |
| 342 | */ |
| 343 | private function exists(string $filename) |
| 344 | { |
| 345 | // Do we have thumbnail already? |
| 346 | $file = $this->resolve(trailingslashit($this->get_plugin_uploads_dir()['basedir']) . $filename); |
| 347 | |
| 348 | if ( $file && is_file($file) ) { |
| 349 | $extension = pathinfo($file, PATHINFO_EXTENSION); |
| 350 | return trailingslashit($this->get_plugin_uploads_dir()['baseurl']) . $filename . '.' . $extension; |
| 351 | } |
| 352 | |
| 353 | return false; |
| 354 | } |
| 355 | |
| 356 | /** |
| 357 | * Resolves filename. |
| 358 | * |
| 359 | * @since 5.0.0 |
| 360 | * @access private |
| 361 | * @author Ioan Chiriac |
| 362 | * @link https://stackoverflow.com/a/29468093/9131961 |
| 363 | * @param string $name |
| 364 | * @return string|bool Resolved path, or false if not found |
| 365 | */ |
| 366 | private function resolve(string $name) |
| 367 | { |
| 368 | $info = pathinfo($name); |
| 369 | |
| 370 | // File already contains an extension, return it |
| 371 | if ( isset($info['extension']) && ! empty($info['extension']) ) { |
| 372 | return $name; |
| 373 | } |
| 374 | |
| 375 | $filename = $info['filename']; |
| 376 | $len = strlen($filename); |
| 377 | |
| 378 | // open the folder |
| 379 | $dh = opendir($info['dirname']); |
| 380 | |
| 381 | if ( ! $dh ) { |
| 382 | return false; |
| 383 | } |
| 384 | |
| 385 | // scan each file in the folder |
| 386 | while ( ($file = readdir($dh)) !== false ) { |
| 387 | if ( strncmp($file, $filename, $len) === 0 ) { |
| 388 | if ( strlen($name) > $len ) { |
| 389 | // if name contains a directory part |
| 390 | $name = substr($name, 0, strlen($name) - $len) . $file; |
| 391 | } else { |
| 392 | // if the name is at the path root |
| 393 | $name = $file; |
| 394 | } |
| 395 | |
| 396 | closedir($dh); |
| 397 | return $name; |
| 398 | } |
| 399 | } |
| 400 | |
| 401 | // file not found |
| 402 | closedir($dh); |
| 403 | return false; |
| 404 | } |
| 405 | |
| 406 | /** |
| 407 | * Retrieves local path to image. |
| 408 | * |
| 409 | * @since 5.0.0 |
| 410 | * @access private |
| 411 | * @param string $url |
| 412 | * @param integer $post_ID |
| 413 | * @return string|boolean Path to image, or false if not found |
| 414 | */ |
| 415 | private function url_to_path(string $url, ?int $post_ID) |
| 416 | { |
| 417 | if ( Helper::is_image_url($url) ) { |
| 418 | $attachment_id = $this->get_attachment_id($url); |
| 419 | |
| 420 | // Image is hosted locally |
| 421 | if ( $attachment_id ) { |
| 422 | return get_attached_file($attachment_id); |
| 423 | } |
| 424 | |
| 425 | // Image hosted elsewhere? |
| 426 | if ( $post_ID && Helper::is_number($post_ID) ) { |
| 427 | return $this->fetch_external_image($post_ID, $url); |
| 428 | } |
| 429 | } |
| 430 | |
| 431 | return false; |
| 432 | } |
| 433 | |
| 434 | /** |
| 435 | * Gets image meta. |
| 436 | * |
| 437 | * @since 5.0.0 |
| 438 | * @access private |
| 439 | * @param int $id Post ID |
| 440 | * @param string $source Image source |
| 441 | * @return array|bool |
| 442 | */ |
| 443 | private function get_file_meta(int $id, string $source) |
| 444 | { |
| 445 | // get thumbnail path from the Featured Image |
| 446 | if ( 'featured' == $source ) { |
| 447 | $thumbnail_id = get_post_thumbnail_id($id); |
| 448 | |
| 449 | if ( $thumbnail_id ) { |
| 450 | // image path |
| 451 | return [ |
| 452 | 'path' => get_attached_file($thumbnail_id), |
| 453 | 'alt' => get_post_meta($thumbnail_id, '_wp_attachment_image_alt', true) |
| 454 | ]; |
| 455 | } |
| 456 | } |
| 457 | // get thumbnail path from first image attachment |
| 458 | elseif ( 'first_attachment' == $source ) { |
| 459 | $args = [ |
| 460 | 'numberposts' => 1, |
| 461 | 'order' => 'ASC', |
| 462 | 'post_parent' => $id, |
| 463 | 'post_type' => 'attachment', |
| 464 | 'post_mime_type' => 'image' |
| 465 | ]; |
| 466 | $post_attachments = get_children($args); |
| 467 | |
| 468 | if ( ! empty($post_attachments) ) { |
| 469 | $first_img = array_shift($post_attachments); |
| 470 | |
| 471 | return [ |
| 472 | 'path' => get_attached_file($first_img->ID), |
| 473 | 'alt' => get_post_meta($first_img->ID, '_wp_attachment_image_alt', true) |
| 474 | ]; |
| 475 | } |
| 476 | } |
| 477 | // get thumbnail path from post content |
| 478 | elseif ( 'first_image' == $source ) { |
| 479 | /** @var wpdb $wpdb */ |
| 480 | global $wpdb; |
| 481 | |
| 482 | $content = $wpdb->get_var( |
| 483 | $wpdb->prepare( |
| 484 | "SELECT post_content FROM {$wpdb->posts} WHERE ID = %d;", |
| 485 | $id |
| 486 | ) |
| 487 | ); |
| 488 | |
| 489 | if ( $content ) { |
| 490 | // at least one image has been found |
| 491 | if ( preg_match('/<img[^>]+>/i', $content, $img) ) { |
| 492 | // get img src attribute from the first image found |
| 493 | preg_match('/(src)="([^"]*)"/i', $img[0], $src_attr); |
| 494 | |
| 495 | if ( isset($src_attr[2]) && ! empty($src_attr[2]) ) { |
| 496 | // get img alt attribute from the first image found |
| 497 | $alt = ''; |
| 498 | preg_match('/(alt)="([^"]*)"/i', $img[0], $alt_attr); |
| 499 | |
| 500 | if ( isset($alt_attr[2]) && ! empty($alt_attr[2]) ) { |
| 501 | $alt = $alt_attr[2]; |
| 502 | } |
| 503 | |
| 504 | // image from Media Library |
| 505 | $attachment_id = $this->get_attachment_id($src_attr[2]); |
| 506 | |
| 507 | if ( $attachment_id ) { |
| 508 | return [ |
| 509 | 'path' => get_attached_file($attachment_id), |
| 510 | 'alt' => $alt |
| 511 | ]; |
| 512 | } // external image? |
| 513 | else { |
| 514 | return [ |
| 515 | 'path' => $this->fetch_external_image($id, $src_attr[2]), |
| 516 | 'alt' => $alt |
| 517 | ]; |
| 518 | } |
| 519 | } |
| 520 | } |
| 521 | } |
| 522 | } |
| 523 | |
| 524 | return false; |
| 525 | } |
| 526 | |
| 527 | /** |
| 528 | * Gets image ALT attribute. |
| 529 | * |
| 530 | * @since 5.0.0 |
| 531 | * @access private |
| 532 | * @param int $id Post ID |
| 533 | * @param string $source Image source |
| 534 | * @return string |
| 535 | */ |
| 536 | private function get_alt_attribute(int $id, string $source) |
| 537 | { |
| 538 | $alt = ''; |
| 539 | |
| 540 | // get thumbnail path from the Featured Image |
| 541 | if ( 'featured' == $source ) { |
| 542 | $thumbnail_id = get_post_thumbnail_id($id); |
| 543 | |
| 544 | if ( $thumbnail_id ) { |
| 545 | // image path |
| 546 | $alt = get_post_meta($thumbnail_id, '_wp_attachment_image_alt', true); |
| 547 | } |
| 548 | } |
| 549 | // get thumbnail path from first image attachment |
| 550 | elseif ( 'first_attachment' == $source ) { |
| 551 | $args = [ |
| 552 | 'numberposts' => 1, |
| 553 | 'order' => 'ASC', |
| 554 | 'post_parent' => $id, |
| 555 | 'post_type' => 'attachment', |
| 556 | 'post_mime_type' => 'image' |
| 557 | ]; |
| 558 | $post_attachments = get_children($args); |
| 559 | |
| 560 | if ( ! empty($post_attachments) ) { |
| 561 | $first_img = array_shift($post_attachments); |
| 562 | $alt = get_post_meta($first_img->ID, '_wp_attachment_image_alt', true); |
| 563 | } |
| 564 | } |
| 565 | // get thumbnail path from post content |
| 566 | elseif ( 'first_image' == $source ) { |
| 567 | /** @var wpdb $wpdb */ |
| 568 | global $wpdb; |
| 569 | |
| 570 | $content = $wpdb->get_var( |
| 571 | $wpdb->prepare( |
| 572 | "SELECT post_content FROM {$wpdb->posts} WHERE ID = %d;", |
| 573 | $id |
| 574 | ) |
| 575 | ); |
| 576 | |
| 577 | if ( $content ) { |
| 578 | // at least one image has been found |
| 579 | if ( preg_match('/<img[^>]+>/i', $content, $img) ) { |
| 580 | // get img alt attribute from the first image found |
| 581 | preg_match('/(alt)="([^"]*)"/i', $img[0], $alt_attr); |
| 582 | |
| 583 | if ( isset($alt_attr[2]) && ! empty($alt_attr[2]) ) { |
| 584 | $alt = $alt_attr[2]; |
| 585 | } |
| 586 | } |
| 587 | } |
| 588 | } |
| 589 | |
| 590 | return $alt; |
| 591 | } |
| 592 | |
| 593 | /** |
| 594 | * Get the Attachment ID for a given image URL. |
| 595 | * |
| 596 | * @since 3.0.0 |
| 597 | * @access private |
| 598 | * @author Frankie Jarrett |
| 599 | * @link http://frankiejarrett.com/get-an-attachment-id-by-url-in-wordpress/ |
| 600 | * @param string $url |
| 601 | * @return int|null |
| 602 | */ |
| 603 | private function get_attachment_id(string $url) |
| 604 | { |
| 605 | $url = Helper::add_scheme( |
| 606 | $url, |
| 607 | is_ssl() ? 'https://' : 'http://' |
| 608 | ); |
| 609 | |
| 610 | // Split the $url into two parts with the wp-content directory as the separator. |
| 611 | $parse_url = explode(parse_url(WP_CONTENT_URL, PHP_URL_PATH), $url); |
| 612 | |
| 613 | // Get the host of the current site and the host of the $url, ignoring www. |
| 614 | $this_host = str_ireplace('www.', '', parse_url(home_url(), PHP_URL_HOST)); |
| 615 | $file_host = str_ireplace('www.', '', parse_url($url, PHP_URL_HOST)); |
| 616 | |
| 617 | // Return nothing if there aren't any $url parts or if the current host and $url host do not match. |
| 618 | if ( |
| 619 | ! isset($parse_url[1]) |
| 620 | || empty($parse_url[1]) |
| 621 | || ($this_host != $file_host) |
| 622 | ) { |
| 623 | return false; |
| 624 | } |
| 625 | |
| 626 | // Now we're going to quickly search the DB for any attachment GUID with a partial path match. |
| 627 | // Example: /uploads/2013/05/test-image.jpg |
| 628 | global $wpdb; |
| 629 | |
| 630 | $attachment = $wpdb->get_col($wpdb->prepare("SELECT ID FROM {$wpdb->prefix}posts WHERE guid RLIKE %s;", $parse_url[1])); |
| 631 | |
| 632 | if ( ! $attachment ) { |
| 633 | // Maybe it's a resized image, so try to get the full one |
| 634 | $parse_url[1] = preg_replace('/-[0-9]{1,4}x[0-9]{1,4}\.(jpg|jpeg|png|gif|bmp)$/i', '.$1', $parse_url[1]); |
| 635 | $attachment = $wpdb->get_col($wpdb->prepare("SELECT ID FROM {$wpdb->prefix}posts WHERE guid RLIKE %s;", $parse_url[1])); |
| 636 | } |
| 637 | |
| 638 | // Returns null if no attachment is found. |
| 639 | return isset($attachment[0]) ? $attachment[0] : null; |
| 640 | } |
| 641 | |
| 642 | /** |
| 643 | * Fetchs external images. |
| 644 | * |
| 645 | * @since 2.3.3 |
| 646 | * @access private |
| 647 | * @param int $id Post ID. |
| 648 | * @param string $url Image url. |
| 649 | * @return string|bool Image path, or false on failure. |
| 650 | */ |
| 651 | private function fetch_external_image(int $id, string $url) |
| 652 | { |
| 653 | if ( ! Helper::is_image_url($url) ) { |
| 654 | return false; |
| 655 | } |
| 656 | |
| 657 | $full_image_path = trailingslashit($this->get_plugin_uploads_dir()['basedir']) . "{$id}_" . sanitize_file_name(rawurldecode(wp_basename($url))); |
| 658 | |
| 659 | // if the file exists already, return URL and path |
| 660 | if ( file_exists($full_image_path) ) { |
| 661 | return $full_image_path; |
| 662 | } |
| 663 | |
| 664 | $url = Helper::add_scheme( |
| 665 | $url, |
| 666 | is_ssl() ? 'https://' : 'http://' |
| 667 | ); |
| 668 | |
| 669 | $accepted_status_codes = [200, 301, 302]; |
| 670 | $response = wp_remote_head($url, ['timeout' => 5, 'sslverify' => false]); |
| 671 | |
| 672 | if ( |
| 673 | ! is_wp_error($response) |
| 674 | && in_array(wp_remote_retrieve_response_code($response), $accepted_status_codes) |
| 675 | ) { |
| 676 | require_once ABSPATH . 'wp-admin/includes/file.php'; |
| 677 | |
| 678 | $url = str_replace('https://', 'http://', $url); |
| 679 | $tmp = download_url($url); |
| 680 | |
| 681 | // File was downloaded successfully |
| 682 | if ( ! is_wp_error($tmp) ) { |
| 683 | // Determine image type |
| 684 | if ( function_exists('exif_imagetype') ) { |
| 685 | $image_type = exif_imagetype($tmp); |
| 686 | } else { |
| 687 | $image_type = getimagesize($tmp); |
| 688 | $image_type = ( isset($image_type[2]) ) ? $image_type[2] : null; |
| 689 | } |
| 690 | |
| 691 | // Valid image, save it |
| 692 | if ( in_array($image_type, [IMAGETYPE_GIF, IMAGETYPE_JPEG, IMAGETYPE_PNG]) ) { |
| 693 | // move file to Uploads |
| 694 | if ( @rename($tmp, $full_image_path) ) { |
| 695 | // borrowed from WP - set correct file permissions |
| 696 | $stat = stat(dirname($full_image_path)); |
| 697 | $perms = $stat['mode'] & 0000644; |
| 698 | @chmod($full_image_path, $perms); |
| 699 | |
| 700 | return $full_image_path; |
| 701 | } |
| 702 | } |
| 703 | |
| 704 | // Invalid file, remove it |
| 705 | @unlink($tmp); |
| 706 | } |
| 707 | } |
| 708 | |
| 709 | return false; |
| 710 | } |
| 711 | |
| 712 | /** |
| 713 | * Creates thumbnails. |
| 714 | * |
| 715 | * @since 3.0.0 |
| 716 | * @access private |
| 717 | * @param string $path Image path |
| 718 | * @param string $filename Image filename |
| 719 | * @param array $size Image size |
| 720 | * @param bool $crop Whether to crop the image or not |
| 721 | * @return string|bool Image URL on success, false on error |
| 722 | */ |
| 723 | private function resize(string $path, string $filename, array $size, bool $crop = true) |
| 724 | { |
| 725 | $image = wp_get_image_editor($path); |
| 726 | |
| 727 | // valid image, create thumbnails |
| 728 | if ( ! is_wp_error($image) ) { |
| 729 | $original_size = $image->get_size(); |
| 730 | $sizes = [ |
| 731 | '1x' => $size |
| 732 | ]; |
| 733 | $thumbnail = ''; |
| 734 | |
| 735 | /** |
| 736 | * Hook to enable/disable retina support. |
| 737 | * @since 5.3.0 |
| 738 | */ |
| 739 | $retina_support = apply_filters('wpp_retina_support', true); |
| 740 | |
| 741 | if ( $retina_support ) { |
| 742 | // Calculate thumbnail sizes |
| 743 | foreach( $this->descriptors as $descriptor ) { |
| 744 | $new_size_width = floor($descriptor * $size[0]); |
| 745 | $new_size_height = floor($descriptor * $size[1]); |
| 746 | |
| 747 | if ( |
| 748 | $new_size_width <= $original_size['width'] |
| 749 | && $new_size_height <= $original_size['height'] |
| 750 | ) { |
| 751 | $sizes[$descriptor . 'x'] = [$new_size_width, $new_size_height]; |
| 752 | } |
| 753 | } |
| 754 | } |
| 755 | |
| 756 | $path_parts = null; |
| 757 | |
| 758 | // Generate thumbnails |
| 759 | foreach( $sizes as $d => $s ) { |
| 760 | if ( '1x' == $d ) { |
| 761 | $thumbnail = $this->generate_thumbnail($path, $filename, $s, $crop); |
| 762 | |
| 763 | // Image could not be generated, let's bail early. |
| 764 | if ( ! $thumbnail ) { |
| 765 | break; |
| 766 | } |
| 767 | } else { |
| 768 | if ( ! $path_parts ) { |
| 769 | $path_parts = pathinfo($filename); |
| 770 | } |
| 771 | |
| 772 | $filename_with_descriptor = $path_parts['filename'] . "@{$d}." . $path_parts['extension']; |
| 773 | $this->generate_thumbnail($path, $filename_with_descriptor, $s, $crop); |
| 774 | } |
| 775 | } |
| 776 | |
| 777 | return $thumbnail; |
| 778 | } |
| 779 | |
| 780 | return false; |
| 781 | } |
| 782 | |
| 783 | /** |
| 784 | * Creates image. |
| 785 | * |
| 786 | * @since 5.3.0 |
| 787 | * @access private |
| 788 | * @param string $path Image path |
| 789 | * @param string $filename Image filename |
| 790 | * @param array $size Image size |
| 791 | * @param bool $crop Whether to crop the image or not |
| 792 | * @return string|bool Image URL on success, false on error |
| 793 | */ |
| 794 | private function generate_thumbnail(string $path, string $filename, array $size, bool $crop = true) |
| 795 | { |
| 796 | $image = wp_get_image_editor($path); |
| 797 | |
| 798 | // valid image, create thumbnail |
| 799 | if ( ! is_wp_error($image) ) { |
| 800 | /** |
| 801 | * Hook to change the image compression quality of WPP's thumbnails. |
| 802 | * @since 4.2.1 |
| 803 | */ |
| 804 | $quality = apply_filters('wpp_thumbnail_compression_quality', null); |
| 805 | |
| 806 | if ( ! ctype_digit($quality) ) { |
| 807 | $quality = null; // Fallback to core's default |
| 808 | } |
| 809 | |
| 810 | $image->set_quality($quality); |
| 811 | |
| 812 | $image->resize($size[0], $size[1], $crop); |
| 813 | $new_img = $image->save(trailingslashit($this->get_plugin_uploads_dir()['basedir']) . $filename); |
| 814 | |
| 815 | if ( ! is_wp_error($new_img) ) { |
| 816 | return trailingslashit($this->get_plugin_uploads_dir()['baseurl']) . $filename; |
| 817 | } |
| 818 | } |
| 819 | |
| 820 | return false; |
| 821 | } |
| 822 | |
| 823 | /** |
| 824 | * Generates srcset attribute for this image. |
| 825 | * |
| 826 | * @since 5.3.0 |
| 827 | * @param string $src |
| 828 | * @return string |
| 829 | */ |
| 830 | private function get_srcset(string $src) |
| 831 | { |
| 832 | /** |
| 833 | * Hook to enable/disable retina support. |
| 834 | * @since 5.3.0 |
| 835 | */ |
| 836 | $retina_support = apply_filters('wpp_retina_support', true); |
| 837 | |
| 838 | if ( ! $retina_support ) { |
| 839 | return ''; |
| 840 | } |
| 841 | |
| 842 | $path_parts = pathinfo($src); |
| 843 | $srcset = [$src]; |
| 844 | |
| 845 | foreach( $this->descriptors as $descriptor ) { |
| 846 | $d = "{$descriptor}x"; |
| 847 | $filename = $path_parts['filename'] . "@{$d}." . $path_parts['extension']; |
| 848 | |
| 849 | if ( @file_exists(trailingslashit($this->get_plugin_uploads_dir()['basedir']) . $filename) ) { |
| 850 | $srcset[] = $path_parts['dirname'] . '/' . $filename . ' ' . $d; |
| 851 | } |
| 852 | } |
| 853 | |
| 854 | return ( count($srcset) > 1 ) ? ' srcset="' . implode(', ', $srcset) . '" ' : ''; |
| 855 | } |
| 856 | |
| 857 | /** |
| 858 | * Render image tag. |
| 859 | * |
| 860 | * @since 3.0.0 |
| 861 | * @access public |
| 862 | * @param string $src Image URL |
| 863 | * @param array $dimension Image's width and height |
| 864 | * @param string $class CSS class |
| 865 | * @param object $alt Alternative text |
| 866 | * @param string $error Error, if the image could not be created |
| 867 | * @return string |
| 868 | */ |
| 869 | public function render(string $src, array $size, string $class, string $alt = '', string $error = '') |
| 870 | { |
| 871 | $img_tag = ''; |
| 872 | |
| 873 | if ( $error ) { |
| 874 | $img_tag = '<!-- ' . $error . ' --> '; |
| 875 | } |
| 876 | |
| 877 | // Make sure we use the right protocol |
| 878 | $src = esc_url(is_ssl() ? str_ireplace('http://', 'https://', $src) : $src); |
| 879 | // Get srcset, if available |
| 880 | $srcset = $this->get_srcset($src); |
| 881 | |
| 882 | $src = 'src="' . $src . '"' . $srcset; |
| 883 | |
| 884 | // Lazy Load attribute, if enabled |
| 885 | $lazyload = ( $this->admin_options['tools']['thumbnail']['lazyload'] ) ? ' loading="lazy"' : ''; |
| 886 | |
| 887 | $img_tag .= '<img ' . $src . ' width="' . esc_attr($size[0]) . '" height="' . esc_attr($size[1]) . '" alt="' . esc_attr($alt) . '" class="' . esc_attr($class) . '" decoding="async" ' . $lazyload . ' />'; |
| 888 | |
| 889 | return apply_filters('wpp_render_image', $img_tag); |
| 890 | } |
| 891 | |
| 892 | /** |
| 893 | * Gets list of available thumbnails sizes |
| 894 | * |
| 895 | * @since 3.2.0 |
| 896 | * @link http://codex.wordpress.org/Function_Reference/get_intermediate_image_sizes |
| 897 | * @param string $size |
| 898 | * @return array|bool |
| 899 | */ |
| 900 | public function get_sizes(?string $size) |
| 901 | { |
| 902 | if ( ! is_array($this->available_sizes) || empty($this->available_sizes) ) { |
| 903 | global $_wp_additional_image_sizes; |
| 904 | |
| 905 | $this->available_sizes = []; |
| 906 | $get_intermediate_image_sizes = get_intermediate_image_sizes(); |
| 907 | |
| 908 | // Create the full array with sizes and crop info |
| 909 | foreach( $get_intermediate_image_sizes as $_size ) { |
| 910 | if ( in_array($_size, ['thumbnail', 'medium', 'large']) ) { |
| 911 | $this->available_sizes[$_size]['width'] = get_option($_size . '_size_w'); |
| 912 | $this->available_sizes[$_size]['height'] = get_option($_size . '_size_h'); |
| 913 | $this->available_sizes[$_size]['crop'] = (bool) get_option($_size . '_crop'); |
| 914 | } elseif ( isset($_wp_additional_image_sizes[$_size]) ) { |
| 915 | $this->available_sizes[$_size] = [ |
| 916 | 'width' => $_wp_additional_image_sizes[$_size]['width'], |
| 917 | 'height' => $_wp_additional_image_sizes[$_size]['height'], |
| 918 | 'crop' => $_wp_additional_image_sizes[$_size]['crop'] |
| 919 | ]; |
| 920 | } |
| 921 | } |
| 922 | } |
| 923 | |
| 924 | // Get only 1 size if found |
| 925 | if ( $size ) { |
| 926 | if ( isset($this->available_sizes[$size]) ) { |
| 927 | return $this->available_sizes[$size]; |
| 928 | } |
| 929 | return false; |
| 930 | } |
| 931 | |
| 932 | return $this->available_sizes; |
| 933 | } |
| 934 | |
| 935 | /** |
| 936 | * Returns the URL of the default thumbnail image. |
| 937 | * |
| 938 | * @since 5.0.0 |
| 939 | * @param int|null |
| 940 | * @return string |
| 941 | */ |
| 942 | public function get_default_url(?int $post_ID = null) |
| 943 | { |
| 944 | if ( has_filter('wpp_default_thumbnail_url') ) { |
| 945 | $default_thumbnail_url = apply_filters('wpp_default_thumbnail_url', $this->default_thumbnail, $post_ID); |
| 946 | |
| 947 | if ( $default_thumbnail_url != $this->default_thumbnail && Helper::is_image_url($default_thumbnail_url) ) { |
| 948 | return $default_thumbnail_url; |
| 949 | } |
| 950 | } |
| 951 | |
| 952 | return $this->default_thumbnail; |
| 953 | } |
| 954 | } |
| 955 |