| 1 |
<?php |
| 2 |
namespace Elementor\Core\Files\Assets\Svg; |
| 3 |
|
| 4 |
use Elementor\Core\Files\Assets\Files_Upload_Handler; |
| 5 |
|
| 6 |
if ( ! defined( 'ABSPATH' ) ) { |
| 7 |
exit; // Exit if accessed directly. |
| 8 |
} |
| 9 |
|
| 10 |
class Svg_Handler extends Files_Upload_Handler { |
| 11 |
/** |
| 12 |
* Inline svg attachment meta key |
| 13 |
*/ |
| 14 |
const META_KEY = '_elementor_inline_svg'; |
| 15 |
|
| 16 |
const SCRIPT_REGEX = '/(?:\w+script|data):/xi'; |
| 17 |
|
| 18 |
/** |
| 19 |
* @var \DOMDocument |
| 20 |
*/ |
| 21 |
private $svg_dom = null; |
| 22 |
|
| 23 |
/** |
| 24 |
* Attachment ID. |
| 25 |
* |
| 26 |
* Holds the current attachment ID. |
| 27 |
* |
| 28 |
* @var int |
| 29 |
*/ |
| 30 |
private $attachment_id; |
| 31 |
|
| 32 |
public static function get_name() { |
| 33 |
return 'svg-handler'; |
| 34 |
} |
| 35 |
|
| 36 |
/** |
| 37 |
* get_meta |
| 38 |
* @return mixed |
| 39 |
*/ |
| 40 |
protected function get_meta() { |
| 41 |
return get_post_meta( $this->attachment_id, self::META_KEY, true ); |
| 42 |
} |
| 43 |
|
| 44 |
/** |
| 45 |
* update_meta |
| 46 |
* @param $meta |
| 47 |
*/ |
| 48 |
protected function update_meta( $meta ) { |
| 49 |
update_post_meta( $this->attachment_id, self::META_KEY, $meta ); |
| 50 |
} |
| 51 |
|
| 52 |
/** |
| 53 |
* delete_meta |
| 54 |
*/ |
| 55 |
protected function delete_meta() { |
| 56 |
delete_post_meta( $this->attachment_id, self::META_KEY ); |
| 57 |
} |
| 58 |
|
| 59 |
public function get_mime_type() { |
| 60 |
return 'image/svg+xml'; |
| 61 |
} |
| 62 |
|
| 63 |
public function get_file_type() { |
| 64 |
return 'svg'; |
| 65 |
} |
| 66 |
|
| 67 |
/** |
| 68 |
* delete_meta_cache |
| 69 |
*/ |
| 70 |
public function delete_meta_cache() { |
| 71 |
delete_post_meta_by_key( self::META_KEY ); |
| 72 |
} |
| 73 |
|
| 74 |
/** |
| 75 |
* read_from_file |
| 76 |
* @return bool|string |
| 77 |
*/ |
| 78 |
public function read_from_file() { |
| 79 |
return file_get_contents( get_attached_file( $this->attachment_id ) ); |
| 80 |
} |
| 81 |
|
| 82 |
/** |
| 83 |
* get_inline_svg |
| 84 |
* @param $attachment_id |
| 85 |
* |
| 86 |
* @return bool|mixed|string |
| 87 |
*/ |
| 88 |
public static function get_inline_svg( $attachment_id ) { |
| 89 |
$svg = get_post_meta( $attachment_id, self::META_KEY, true ); |
| 90 |
|
| 91 |
if ( ! empty( $svg ) ) { |
| 92 |
return $svg; |
| 93 |
} |
| 94 |
|
| 95 |
$attachment_file = get_attached_file( $attachment_id ); |
| 96 |
|
| 97 |
if ( ! $attachment_file ) { |
| 98 |
return ''; |
| 99 |
} |
| 100 |
|
| 101 |
$svg = file_get_contents( $attachment_file ); |
| 102 |
|
| 103 |
if ( ! empty( $svg ) ) { |
| 104 |
update_post_meta( $attachment_id, self::META_KEY, $svg ); |
| 105 |
} |
| 106 |
|
| 107 |
return $svg; |
| 108 |
} |
| 109 |
|
| 110 |
/** |
| 111 |
* decode_svg |
| 112 |
* @param $content |
| 113 |
* |
| 114 |
* @return string |
| 115 |
*/ |
| 116 |
private function decode_svg( $content ) { |
| 117 |
return gzdecode( $content ); |
| 118 |
} |
| 119 |
|
| 120 |
/** |
| 121 |
* encode_svg |
| 122 |
* @param $content |
| 123 |
* |
| 124 |
* @return string |
| 125 |
*/ |
| 126 |
private function encode_svg( $content ) { |
| 127 |
return gzencode( $content ); |
| 128 |
} |
| 129 |
|
| 130 |
/** |
| 131 |
* sanitize_svg |
| 132 |
* @param $filename |
| 133 |
* |
| 134 |
* @return bool |
| 135 |
*/ |
| 136 |
public function sanitize_svg( $filename ) { |
| 137 |
$original_content = file_get_contents( $filename ); |
| 138 |
$is_encoded = $this->is_encoded( $original_content ); |
| 139 |
|
| 140 |
if ( $is_encoded ) { |
| 141 |
$decoded = $this->decode_svg( $original_content ); |
| 142 |
if ( false === $decoded ) { |
| 143 |
return false; |
| 144 |
} |
| 145 |
$original_content = $decoded; |
| 146 |
} |
| 147 |
|
| 148 |
$valid_svg = $this->sanitizer( $original_content ); |
| 149 |
|
| 150 |
if ( false === $valid_svg ) { |
| 151 |
return false; |
| 152 |
} |
| 153 |
|
| 154 |
// If we were gzipped, we need to re-zip |
| 155 |
if ( $is_encoded ) { |
| 156 |
$valid_svg = $this->encode_svg( $valid_svg ); |
| 157 |
} |
| 158 |
file_put_contents( $filename, $valid_svg ); |
| 159 |
|
| 160 |
return true; |
| 161 |
} |
| 162 |
|
| 163 |
/** |
| 164 |
* Check if the contents are gzipped |
| 165 |
* @see http://www.gzip.org/zlib/rfc-gzip.html#member-format |
| 166 |
* |
| 167 |
* @param $contents |
| 168 |
* @return bool |
| 169 |
*/ |
| 170 |
private function is_encoded( $contents ) { |
| 171 |
$needle = "\x1f\x8b\x08"; |
| 172 |
if ( function_exists( 'mb_strpos' ) ) { |
| 173 |
return 0 === mb_strpos( $contents, $needle ); |
| 174 |
} else { |
| 175 |
return 0 === strpos( $contents, $needle ); |
| 176 |
} |
| 177 |
} |
| 178 |
|
| 179 |
/** |
| 180 |
* is_allowed_tag |
| 181 |
* @param $element |
| 182 |
* |
| 183 |
* @return bool |
| 184 |
*/ |
| 185 |
private function is_allowed_tag( $element ) { |
| 186 |
static $allowed_tags = false; |
| 187 |
if ( false === $allowed_tags ) { |
| 188 |
$allowed_tags = $this->get_allowed_elements(); |
| 189 |
} |
| 190 |
|
| 191 |
$tag_name = $element->tagName; // phpcs:ignore -- php DomDocument |
| 192 |
|
| 193 |
if ( ! in_array( strtolower( $tag_name ), $allowed_tags ) ) { |
| 194 |
$this->remove_element( $element ); |
| 195 |
return false; |
| 196 |
} |
| 197 |
|
| 198 |
return true; |
| 199 |
} |
| 200 |
|
| 201 |
private function remove_element( $element ) { |
| 202 |
$element->parentNode->removeChild( $element ); // phpcs:ignore -- php DomDocument |
| 203 |
} |
| 204 |
|
| 205 |
/** |
| 206 |
* is_a_attribute |
| 207 |
* @param $name |
| 208 |
* @param $check |
| 209 |
* |
| 210 |
* @return bool |
| 211 |
*/ |
| 212 |
private function is_a_attribute( $name, $check ) { |
| 213 |
return 0 === strpos( $name, $check . '-' ); |
| 214 |
} |
| 215 |
|
| 216 |
/** |
| 217 |
* is_remote_value |
| 218 |
* @param $value |
| 219 |
* |
| 220 |
* @return string |
| 221 |
*/ |
| 222 |
private function is_remote_value( $value ) { |
| 223 |
$value = trim( preg_replace( '/[^ -~]/xu', '', $value ) ); |
| 224 |
$wrapped_in_url = preg_match( '~^url\(\s*[\'"]\s*(.*)\s*[\'"]\s*\)$~xi', $value, $match ); |
| 225 |
if ( ! $wrapped_in_url ) { |
| 226 |
return false; |
| 227 |
} |
| 228 |
|
| 229 |
$value = trim( $match[1], '\'"' ); |
| 230 |
return preg_match( '~^((https?|ftp|file):)?//~xi', $value ); |
| 231 |
} |
| 232 |
|
| 233 |
/** |
| 234 |
* has_js_value |
| 235 |
* @param $value |
| 236 |
* |
| 237 |
* @return false|int |
| 238 |
*/ |
| 239 |
private function has_js_value( $value ) { |
| 240 |
return preg_match( '/base64|data|(?:java)?script|alert\(|window\.|document/i', $value ); |
| 241 |
} |
| 242 |
|
| 243 |
/** |
| 244 |
* get_allowed_attributes |
| 245 |
* @return array |
| 246 |
*/ |
| 247 |
private function get_allowed_attributes() { |
| 248 |
$allowed_attributes = [ |
| 249 |
'class', |
| 250 |
'clip-path', |
| 251 |
'clip-rule', |
| 252 |
'fill', |
| 253 |
'fill-opacity', |
| 254 |
'fill-rule', |
| 255 |
'filter', |
| 256 |
'id', |
| 257 |
'mask', |
| 258 |
'opacity', |
| 259 |
'stroke', |
| 260 |
'stroke-dasharray', |
| 261 |
'stroke-dashoffset', |
| 262 |
'stroke-linecap', |
| 263 |
'stroke-linejoin', |
| 264 |
'stroke-miterlimit', |
| 265 |
'stroke-opacity', |
| 266 |
'stroke-width', |
| 267 |
'style', |
| 268 |
'systemlanguage', |
| 269 |
'transform', |
| 270 |
'href', |
| 271 |
'xlink:href', |
| 272 |
'xlink:title', |
| 273 |
'cx', |
| 274 |
'cy', |
| 275 |
'r', |
| 276 |
'requiredfeatures', |
| 277 |
'clippathunits', |
| 278 |
'type', |
| 279 |
'rx', |
| 280 |
'ry', |
| 281 |
'color-interpolation-filters', |
| 282 |
'stddeviation', |
| 283 |
'filterres', |
| 284 |
'filterunits', |
| 285 |
'height', |
| 286 |
'primitiveunits', |
| 287 |
'width', |
| 288 |
'x', |
| 289 |
'y', |
| 290 |
'font-size', |
| 291 |
'display', |
| 292 |
'font-family', |
| 293 |
'font-style', |
| 294 |
'font-weight', |
| 295 |
'text-anchor', |
| 296 |
'marker-end', |
| 297 |
'marker-mid', |
| 298 |
'marker-start', |
| 299 |
'x1', |
| 300 |
'x2', |
| 301 |
'y1', |
| 302 |
'y2', |
| 303 |
'gradienttransform', |
| 304 |
'gradientunits', |
| 305 |
'spreadmethod', |
| 306 |
'markerheight', |
| 307 |
'markerunits', |
| 308 |
'markerwidth', |
| 309 |
'orient', |
| 310 |
'preserveaspectratio', |
| 311 |
'refx', |
| 312 |
'refy', |
| 313 |
'viewbox', |
| 314 |
'maskcontentunits', |
| 315 |
'maskunits', |
| 316 |
'd', |
| 317 |
'patterncontentunits', |
| 318 |
'patterntransform', |
| 319 |
'patternunits', |
| 320 |
'points', |
| 321 |
'fx', |
| 322 |
'fy', |
| 323 |
'offset', |
| 324 |
'stop-color', |
| 325 |
'stop-opacity', |
| 326 |
'xmlns', |
| 327 |
'xmlns:se', |
| 328 |
'xmlns:xlink', |
| 329 |
'xml:space', |
| 330 |
'method', |
| 331 |
'spacing', |
| 332 |
'startoffset', |
| 333 |
'dx', |
| 334 |
'dy', |
| 335 |
'rotate', |
| 336 |
'textlength', |
| 337 |
]; |
| 338 |
|
| 339 |
/** |
| 340 |
* Allowed attributes in SVG file. |
| 341 |
* |
| 342 |
* Filters the list of allowed attributes in SVG files. |
| 343 |
* |
| 344 |
* Since SVG files can run JS code that may inject malicious code, all attributes |
| 345 |
* are removed except the allowed attributes. |
| 346 |
* |
| 347 |
* This hook can be used to manage allowed SVG attributes. To either add new |
| 348 |
* attributes or delete existing attributes. To strengthen or weaken site security. |
| 349 |
* |
| 350 |
* @param array $allowed_attributes A list of allowed attributes. |
| 351 |
*/ |
| 352 |
$allowed_attributes = apply_filters( 'elementor/files/svg/allowed_attributes', $allowed_attributes ); |
| 353 |
|
| 354 |
return $allowed_attributes; |
| 355 |
} |
| 356 |
|
| 357 |
/** |
| 358 |
* get_allowed_elements |
| 359 |
* @return array |
| 360 |
*/ |
| 361 |
private function get_allowed_elements() { |
| 362 |
$allowed_elements = [ |
| 363 |
'a', |
| 364 |
'circle', |
| 365 |
'clippath', |
| 366 |
'defs', |
| 367 |
'style', |
| 368 |
'desc', |
| 369 |
'ellipse', |
| 370 |
'fegaussianblur', |
| 371 |
'filter', |
| 372 |
'foreignobject', |
| 373 |
'g', |
| 374 |
'image', |
| 375 |
'line', |
| 376 |
'lineargradient', |
| 377 |
'marker', |
| 378 |
'mask', |
| 379 |
'metadata', |
| 380 |
'path', |
| 381 |
'pattern', |
| 382 |
'polygon', |
| 383 |
'polyline', |
| 384 |
'radialgradient', |
| 385 |
'rect', |
| 386 |
'stop', |
| 387 |
'svg', |
| 388 |
'switch', |
| 389 |
'symbol', |
| 390 |
'text', |
| 391 |
'textpath', |
| 392 |
'title', |
| 393 |
'tspan', |
| 394 |
'use', |
| 395 |
]; |
| 396 |
|
| 397 |
/** |
| 398 |
* Allowed elements in SVG file. |
| 399 |
* |
| 400 |
* Filters the list of allowed elements in SVG files. |
| 401 |
* |
| 402 |
* Since SVG files can run JS code that may inject malicious code, all elements |
| 403 |
* are removed except the allowed elements. |
| 404 |
* |
| 405 |
* This hook can be used to manage SVG elements. To either add new elements or |
| 406 |
* delete existing elements. To strengthen or weaken site security. |
| 407 |
* |
| 408 |
* @param array $allowed_elements A list of allowed elements. |
| 409 |
*/ |
| 410 |
$allowed_elements = apply_filters( 'elementor/files/svg/allowed_elements', $allowed_elements ); |
| 411 |
|
| 412 |
return $allowed_elements; |
| 413 |
} |
| 414 |
|
| 415 |
/** |
| 416 |
* validate_allowed_attributes |
| 417 |
* @param \DOMElement $element |
| 418 |
*/ |
| 419 |
private function validate_allowed_attributes( $element ) { |
| 420 |
static $allowed_attributes = false; |
| 421 |
if ( false === $allowed_attributes ) { |
| 422 |
$allowed_attributes = $this->get_allowed_attributes(); |
| 423 |
} |
| 424 |
|
| 425 |
for ( $index = $element->attributes->length - 1; $index >= 0; $index-- ) { |
| 426 |
// get attribute name |
| 427 |
$attr_name = $element->attributes->item( $index )->name; |
| 428 |
$attr_name_lowercase = strtolower( $attr_name ); |
| 429 |
// Remove attribute if not in whitelist |
| 430 |
if ( ! in_array( $attr_name_lowercase, $allowed_attributes ) && ! $this->is_a_attribute( $attr_name_lowercase, 'aria' ) && ! $this->is_a_attribute( $attr_name_lowercase, 'data' ) ) { |
| 431 |
$element->removeAttribute( $attr_name ); |
| 432 |
continue; |
| 433 |
} |
| 434 |
|
| 435 |
$attr_value = $element->attributes->item( $index )->value; |
| 436 |
|
| 437 |
// Remove attribute if it has a remote reference or js or data-URI/base64 |
| 438 |
if ( ! empty( $attr_value ) && ( $this->is_remote_value( $attr_value ) || $this->has_js_value( $attr_value ) ) ) { |
| 439 |
$element->removeAttribute( $attr_name ); |
| 440 |
continue; |
| 441 |
} |
| 442 |
} |
| 443 |
} |
| 444 |
|
| 445 |
/** |
| 446 |
* strip_xlinks |
| 447 |
* @param \DOMElement $element |
| 448 |
*/ |
| 449 |
private function strip_xlinks( $element ) { |
| 450 |
$xlinks = $element->getAttributeNS( 'http://www.w3.org/1999/xlink', 'href' ); |
| 451 |
|
| 452 |
if ( ! $xlinks ) { |
| 453 |
return; |
| 454 |
} |
| 455 |
|
| 456 |
$allowed_links = [ |
| 457 |
'data:image/png', // PNG |
| 458 |
'data:image/gif', // GIF |
| 459 |
'data:image/jpg', // JPG |
| 460 |
'data:image/jpe', // JPEG |
| 461 |
'data:image/pjp', // PJPEG |
| 462 |
]; |
| 463 |
if ( 1 === preg_match( self::SCRIPT_REGEX, $xlinks ) ) { |
| 464 |
if ( ! in_array( substr( $xlinks, 0, 14 ), $allowed_links ) ) { |
| 465 |
$element->removeAttributeNS( 'http://www.w3.org/1999/xlink', 'href' ); |
| 466 |
} |
| 467 |
} |
| 468 |
} |
| 469 |
|
| 470 |
/** |
| 471 |
* validate_use_tag |
| 472 |
* @param $element |
| 473 |
*/ |
| 474 |
private function validate_use_tag( $element ) { |
| 475 |
$xlinks = $element->getAttributeNS( 'http://www.w3.org/1999/xlink', 'href' ); |
| 476 |
if ( $xlinks && '#' !== substr( $xlinks, 0, 1 ) ) { |
| 477 |
$element->parentNode->removeChild( $element ); // phpcs:ignore -- php DomNode |
| 478 |
} |
| 479 |
} |
| 480 |
|
| 481 |
/** |
| 482 |
* strip_docktype |
| 483 |
*/ |
| 484 |
private function strip_doctype() { |
| 485 |
foreach ( $this->svg_dom->childNodes as $child ) { |
| 486 |
if ( XML_DOCUMENT_TYPE_NODE === $child->nodeType ) { // phpcs:ignore -- php DomDocument |
| 487 |
$child->parentNode->removeChild( $child ); // phpcs:ignore -- php DomDocument |
| 488 |
} |
| 489 |
} |
| 490 |
} |
| 491 |
|
| 492 |
/** |
| 493 |
* sanitize_elements |
| 494 |
*/ |
| 495 |
private function sanitize_elements() { |
| 496 |
$elements = $this->svg_dom->getElementsByTagName( '*' ); |
| 497 |
// loop through all elements |
| 498 |
// we do this backwards so we don't skip anything if we delete a node |
| 499 |
// see comments at: http://php.net/manual/en/class.domnamednodemap.php |
| 500 |
for ( $index = $elements->length - 1; $index >= 0; $index-- ) { |
| 501 |
/** |
| 502 |
* @var \DOMElement $current_element |
| 503 |
*/ |
| 504 |
$current_element = $elements->item( $index ); |
| 505 |
// If the tag isn't in the whitelist, remove it and continue with next iteration |
| 506 |
if ( ! $this->is_allowed_tag( $current_element ) ) { |
| 507 |
continue; |
| 508 |
} |
| 509 |
|
| 510 |
//validate element attributes |
| 511 |
$this->validate_allowed_attributes( $current_element ); |
| 512 |
|
| 513 |
$this->strip_xlinks( $current_element ); |
| 514 |
|
| 515 |
if ( 'use' === strtolower( $current_element->tagName ) ) { // phpcs:ignore -- php DomDocument |
| 516 |
$this->validate_use_tag( $current_element ); |
| 517 |
} |
| 518 |
} |
| 519 |
} |
| 520 |
|
| 521 |
/** |
| 522 |
* sanitizer |
| 523 |
* @param $content |
| 524 |
* |
| 525 |
* @return bool|string |
| 526 |
*/ |
| 527 |
public function sanitizer( $content ) { |
| 528 |
// Strip php tags |
| 529 |
$content = $this->strip_comments( $content ); |
| 530 |
$content = $this->strip_php_tags( $content ); |
| 531 |
|
| 532 |
// Find the start and end tags so we can cut out miscellaneous garbage. |
| 533 |
$start = strpos( $content, '<svg' ); |
| 534 |
$end = strrpos( $content, '</svg>' ); |
| 535 |
if ( false === $start || false === $end ) { |
| 536 |
return false; |
| 537 |
} |
| 538 |
|
| 539 |
$content = substr( $content, $start, ( $end - $start + 6 ) ); |
| 540 |
|
| 541 |
// If the server's PHP version is 8 or up, make sure to Disable the ability to load external entities |
| 542 |
$php_version_under_eight = version_compare( PHP_VERSION, '8.0.0', '<' ); |
| 543 |
if ( $php_version_under_eight ) { |
| 544 |
$libxml_disable_entity_loader = libxml_disable_entity_loader( true ); // phpcs:ignore Generic.PHP.DeprecatedFunctions.Deprecated |
| 545 |
} |
| 546 |
// Suppress the errors |
| 547 |
$libxml_use_internal_errors = libxml_use_internal_errors( true ); |
| 548 |
|
| 549 |
// Create DomDocument instance |
| 550 |
$this->svg_dom = new \DOMDocument(); |
| 551 |
$this->svg_dom->formatOutput = false; |
| 552 |
$this->svg_dom->preserveWhiteSpace = false; |
| 553 |
$this->svg_dom->strictErrorChecking = false; |
| 554 |
|
| 555 |
$open_svg = $this->svg_dom->loadXML( $content ); |
| 556 |
if ( ! $open_svg ) { |
| 557 |
return false; |
| 558 |
} |
| 559 |
|
| 560 |
$this->strip_doctype(); |
| 561 |
$this->sanitize_elements(); |
| 562 |
|
| 563 |
// Export sanitized svg to string |
| 564 |
// Using documentElement to strip out <?xml version="1.0" encoding="UTF-8"... |
| 565 |
$sanitized = $this->svg_dom->saveXML( $this->svg_dom->documentElement, LIBXML_NOEMPTYTAG ); |
| 566 |
|
| 567 |
// Restore defaults |
| 568 |
if ( $php_version_under_eight ) { |
| 569 |
libxml_disable_entity_loader( $libxml_disable_entity_loader ); // phpcs:ignore Generic.PHP.DeprecatedFunctions.Deprecated |
| 570 |
} |
| 571 |
libxml_use_internal_errors( $libxml_use_internal_errors ); |
| 572 |
|
| 573 |
return $sanitized; |
| 574 |
} |
| 575 |
|
| 576 |
/** |
| 577 |
* strip_php_tags |
| 578 |
* @param $string |
| 579 |
* |
| 580 |
* @return string |
| 581 |
*/ |
| 582 |
private function strip_php_tags( $string ) { |
| 583 |
$string = preg_replace( '/<\?(=|php)(.+?)\?>/i', '', $string ); |
| 584 |
// Remove XML, ASP, etc. |
| 585 |
$string = preg_replace( '/<\?(.*)\?>/Us', '', $string ); |
| 586 |
$string = preg_replace( '/<\%(.*)\%>/Us', '', $string ); |
| 587 |
|
| 588 |
if ( ( false !== strpos( $string, '<?' ) ) || ( false !== strpos( $string, '<%' ) ) ) { |
| 589 |
return ''; |
| 590 |
} |
| 591 |
return $string; |
| 592 |
} |
| 593 |
|
| 594 |
/** |
| 595 |
* strip_comments |
| 596 |
* @param $string |
| 597 |
* |
| 598 |
* @return string |
| 599 |
*/ |
| 600 |
private function strip_comments( $string ) { |
| 601 |
// Remove comments. |
| 602 |
$string = preg_replace( '/<!--(.*)-->/Us', '', $string ); |
| 603 |
$string = preg_replace( '/\/\*(.*)\*\//Us', '', $string ); |
| 604 |
if ( ( false !== strpos( $string, '<!--' ) ) || ( false !== strpos( $string, '/*' ) ) ) { |
| 605 |
return ''; |
| 606 |
} |
| 607 |
return $string; |
| 608 |
} |
| 609 |
|
| 610 |
/** |
| 611 |
* wp_prepare_attachment_for_js |
| 612 |
* @param $attachment_data |
| 613 |
* @param $attachment |
| 614 |
* @param $meta |
| 615 |
* |
| 616 |
* @return mixed |
| 617 |
*/ |
| 618 |
public function wp_prepare_attachment_for_js( $attachment_data, $attachment, $meta ) { |
| 619 |
if ( 'image' !== $attachment_data['type'] || 'svg+xml' !== $attachment_data['subtype'] || ! class_exists( 'SimpleXMLElement' ) ) { |
| 620 |
return $attachment_data; |
| 621 |
} |
| 622 |
|
| 623 |
$svg = self::get_inline_svg( $attachment->ID ); |
| 624 |
|
| 625 |
if ( ! $svg ) { |
| 626 |
return $attachment_data; |
| 627 |
} |
| 628 |
|
| 629 |
try { |
| 630 |
$svg = new \SimpleXMLElement( $svg ); |
| 631 |
} catch ( \Exception $e ) { |
| 632 |
return $attachment_data; |
| 633 |
} |
| 634 |
|
| 635 |
$src = $attachment_data['url']; |
| 636 |
$width = (int) $svg['width']; |
| 637 |
$height = (int) $svg['height']; |
| 638 |
|
| 639 |
// Media Gallery |
| 640 |
$attachment_data['image'] = compact( 'src', 'width', 'height' ); |
| 641 |
$attachment_data['thumb'] = compact( 'src', 'width', 'height' ); |
| 642 |
|
| 643 |
// Single Details of Image |
| 644 |
$attachment_data['sizes']['full'] = [ |
| 645 |
'height' => $height, |
| 646 |
'width' => $width, |
| 647 |
'url' => $src, |
| 648 |
'orientation' => $height > $width ? 'portrait' : 'landscape', |
| 649 |
]; |
| 650 |
return $attachment_data; |
| 651 |
} |
| 652 |
|
| 653 |
/** |
| 654 |
* set_attachment_id |
| 655 |
* @param $attachment_id |
| 656 |
* |
| 657 |
* @return int |
| 658 |
*/ |
| 659 |
public function set_attachment_id( $attachment_id ) { |
| 660 |
$this->attachment_id = $attachment_id; |
| 661 |
return $this->attachment_id; |
| 662 |
} |
| 663 |
|
| 664 |
/** |
| 665 |
* get_attachment_id |
| 666 |
* @return int |
| 667 |
*/ |
| 668 |
public function get_attachment_id() { |
| 669 |
return $this->attachment_id; |
| 670 |
} |
| 671 |
|
| 672 |
/** |
| 673 |
* set_svg_meta_data |
| 674 |
* @return mixed |
| 675 |
*/ |
| 676 |
public function set_svg_meta_data( $data, $id ) { |
| 677 |
$attachment = get_post( $id ); // Filter makes sure that the post is an attachment. |
| 678 |
$mime_type = $attachment->post_mime_type; |
| 679 |
|
| 680 |
// If the attachment is an svg |
| 681 |
if ( 'image/svg+xml' === $mime_type ) { |
| 682 |
// If the svg metadata are empty or the width is empty or the height is empty. |
| 683 |
// then get the attributes from xml. |
| 684 |
if ( empty( $data ) || empty( $data['width'] ) || empty( $data['height'] ) ) { |
| 685 |
$xml = simplexml_load_file( get_attached_file( $id ) ); |
| 686 |
$attr = $xml->attributes(); |
| 687 |
$view_box = explode( ' ', $attr->viewBox );// phpcs:ignore WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase |
| 688 |
$data['width'] = isset( $attr->width ) && preg_match( '/\d+/', $attr->width, $value ) ? (int) $value[0] : ( 4 === count( $view_box ) ? (int) $view_box[2] : null ); |
| 689 |
$data['height'] = isset( $attr->height ) && preg_match( '/\d+/', $attr->height, $value ) ? (int) $value[0] : ( 4 === count( $view_box ) ? (int) $view_box[3] : null ); |
| 690 |
} |
| 691 |
} |
| 692 |
|
| 693 |
return $data; |
| 694 |
} |
| 695 |
|
| 696 |
/** |
| 697 |
* handle_upload_prefilter |
| 698 |
* @param $file |
| 699 |
* |
| 700 |
* @return mixed |
| 701 |
*/ |
| 702 |
public function handle_upload_prefilter( $file ) { |
| 703 |
if ( ! $this->is_file_should_handled( $file ) ) { |
| 704 |
return $file; |
| 705 |
} |
| 706 |
|
| 707 |
$file = parent::handle_upload_prefilter( $file ); |
| 708 |
|
| 709 |
if ( ! $file['error'] && self::file_sanitizer_can_run() && ! $this->sanitize_svg( $file['tmp_name'] ) ) { |
| 710 |
$display_type = strtoupper( $this->get_file_type() ); |
| 711 |
|
| 712 |
/* translators: %s: File type. */ |
| 713 |
$file['error'] = sprintf( esc_html__( 'Invalid %1$s Format, file not uploaded for security reasons', 'elementor' ), $display_type ); |
| 714 |
} |
| 715 |
|
| 716 |
return $file; |
| 717 |
} |
| 718 |
|
| 719 |
/** |
| 720 |
* @since 3.0.0 |
| 721 |
* @deprecated 3.0.0 Use Files_Upload_Handler::file_sanitizer_can_run() instead. |
| 722 |
*/ |
| 723 |
public function svg_sanitizer_can_run() { |
| 724 |
_deprecated_function( __METHOD__, '3.0.0', 'Files_Upload_Handler::file_sanitizer_can_run()' ); |
| 725 |
|
| 726 |
return Files_Upload_Handler::file_sanitizer_can_run(); |
| 727 |
} |
| 728 |
|
| 729 |
/** |
| 730 |
* @since 3.0.0 |
| 731 |
* @deprecated 3.0.0 |
| 732 |
*/ |
| 733 |
public function upload_mimes() { |
| 734 |
_deprecated_function( __METHOD__, '3.0.0' ); |
| 735 |
} |
| 736 |
|
| 737 |
/** |
| 738 |
* @since 3.0.0 |
| 739 |
* @deprecated 3.0.0 |
| 740 |
*/ |
| 741 |
public function wp_handle_upload_prefilter() { |
| 742 |
_deprecated_function( __METHOD__, '3.0.0' ); |
| 743 |
} |
| 744 |
|
| 745 |
/** |
| 746 |
* @since 3.0.0 |
| 747 |
* @deprecated 3.0.0 Use Files_Upload_Handler::is_enabled() instead. |
| 748 |
* @see is_enabled() |
| 749 |
*/ |
| 750 |
public function is_svg_uploads_enabled() { |
| 751 |
_deprecated_function( __METHOD__, '3.0.0', 'Files_Upload_Handler::is_enabled()' ); |
| 752 |
|
| 753 |
return Files_Upload_Handler::is_enabled(); |
| 754 |
} |
| 755 |
|
| 756 |
/** |
| 757 |
* Svg_Handler constructor. |
| 758 |
*/ |
| 759 |
public function __construct() { |
| 760 |
parent::__construct(); |
| 761 |
|
| 762 |
add_filter( 'wp_update_attachment_metadata', [ $this, 'set_svg_meta_data' ], 10, 2 ); |
| 763 |
add_filter( 'wp_prepare_attachment_for_js', [ $this, 'wp_prepare_attachment_for_js' ], 10, 3 ); |
| 764 |
add_action( 'elementor/core/files/clear_cache', [ $this, 'delete_meta_cache' ] ); |
| 765 |
} |
| 766 |
} |
| 767 |
|
