| 1 |
<?php |
| 2 |
/** |
| 3 |
* Class Gutenberg_REST_Attachments_Controller. |
| 4 |
* |
| 5 |
* @package gutenberg |
| 6 |
*/ |
| 7 |
|
| 8 |
/** |
| 9 |
* REST API controller for media attachments. |
| 10 |
* |
| 11 |
* Extends the core attachments controller to add client-side media processing |
| 12 |
* functionality including sideload support and sub-size generation control. |
| 13 |
*/ |
| 14 |
class Gutenberg_REST_Attachments_Controller extends WP_REST_Attachments_Controller { |
| 15 |
/** |
| 16 |
* Image size token for the source-format original preserved alongside a |
| 17 |
* client-generated derivative (e.g. the HEIC file kept next to its JPEG). |
| 18 |
* |
| 19 |
* Used both in the `/sideload` route schema and when dispatching the |
| 20 |
* sideloaded file to its metadata key, so the two never drift apart. |
| 21 |
* |
| 22 |
* @var string |
| 23 |
*/ |
| 24 |
const IMAGE_SIZE_SOURCE_ORIGINAL = 'source_original'; |
| 25 |
|
| 26 |
/** |
| 27 |
* Metadata key holding the basename of the source-format original. |
| 28 |
* |
| 29 |
* Deliberately specific so it never collides with the generic `original` |
| 30 |
* or `original_image` keys other flows write to. |
| 31 |
* |
| 32 |
* @var string |
| 33 |
*/ |
| 34 |
const META_KEY_SOURCE_IMAGE = 'source_image'; |
| 35 |
|
| 36 |
/** |
| 37 |
* Image size token for the video transcoded from an animated GIF, sideloaded |
| 38 |
* as a companion of the GIF attachment. |
| 39 |
* |
| 40 |
* Paired with META_KEY_ANIMATED_VIDEO: used both in the `/sideload` route |
| 41 |
* and when writing the sideloaded file to its metadata key. Both use the |
| 42 |
* underscore convention so the size token and meta key stay consistent. |
| 43 |
* |
| 44 |
* @var string |
| 45 |
*/ |
| 46 |
const IMAGE_SIZE_ANIMATED_VIDEO = 'animated_video'; |
| 47 |
|
| 48 |
/** |
| 49 |
* Image size token for the static first-frame poster of a converted GIF. |
| 50 |
* |
| 51 |
* @var string |
| 52 |
*/ |
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const IMAGE_SIZE_ANIMATED_VIDEO_POSTER = 'animated_video_poster'; |
| 54 |
|
| 55 |
/** |
| 56 |
* Metadata key holding the basename of the converted animated-GIF video. |
| 57 |
* |
| 58 |
* @var string |
| 59 |
*/ |
| 60 |
const META_KEY_ANIMATED_VIDEO = 'animated_video'; |
| 61 |
|
| 62 |
/** |
| 63 |
* Metadata key holding the basename of the converted GIF's poster image. |
| 64 |
* |
| 65 |
* @var string |
| 66 |
*/ |
| 67 |
const META_KEY_ANIMATED_VIDEO_POSTER = 'animated_video_poster'; |
| 68 |
|
| 69 |
/** |
| 70 |
* Registers the routes for attachments. |
| 71 |
* |
| 72 |
* @see register_rest_route() |
| 73 |
*/ |
| 74 |
public function register_routes(): void { |
| 75 |
parent::register_routes(); |
| 76 |
|
| 77 |
register_rest_route( |
| 78 |
$this->namespace, |
| 79 |
'/' . $this->rest_base . '/(?P<id>[\d]+)/sideload', |
| 80 |
array( |
| 81 |
array( |
| 82 |
'methods' => WP_REST_Server::CREATABLE, |
| 83 |
'callback' => array( $this, 'sideload_item' ), |
| 84 |
'permission_callback' => array( $this, 'sideload_item_permissions_check' ), |
| 85 |
'args' => array( |
| 86 |
'id' => array( |
| 87 |
'description' => __( 'Unique identifier for the attachment.', 'gutenberg' ), |
| 88 |
'type' => 'integer', |
| 89 |
), |
| 90 |
'image_size' => array( |
| 91 |
'description' => __( 'Image size. Can be a single size name or an array of size names to register the same file under multiple sizes.', 'gutenberg' ), |
| 92 |
'type' => array( 'string', 'array' ), |
| 93 |
'items' => array( |
| 94 |
'type' => 'string', |
| 95 |
), |
| 96 |
'required' => true, |
| 97 |
// A custom callback is used instead of the default `rest_validate_request_arg` |
| 98 |
// because WordPress's `rest_is_array()` treats scalar strings as single-element |
| 99 |
// lists (via wp_parse_list), so a oneOf with both a string and array schema |
| 100 |
// matches a plain string twice and validation fails with "matches more than one |
| 101 |
// of the expected formats". The callback validates the enum per-item using the |
| 102 |
// current list of registered sizes, which reflects any sizes added after the |
| 103 |
// route was registered (e.g. via add_image_size() in tests). |
| 104 |
'validate_callback' => static function ( $value, $request, $param ) { |
| 105 |
$valid_sizes = array_keys( wp_get_registered_image_subsizes() ); |
| 106 |
$valid_sizes[] = 'original'; |
| 107 |
$valid_sizes[] = self::IMAGE_SIZE_SOURCE_ORIGINAL; |
| 108 |
$valid_sizes[] = self::IMAGE_SIZE_ANIMATED_VIDEO; |
| 109 |
$valid_sizes[] = self::IMAGE_SIZE_ANIMATED_VIDEO_POSTER; |
| 110 |
$valid_sizes[] = 'scaled'; |
| 111 |
$valid_sizes[] = 'full'; |
| 112 |
|
| 113 |
$items = is_string( $value ) ? array( $value ) : ( is_array( $value ) ? $value : null ); |
| 114 |
if ( null === $items ) { |
| 115 |
return new WP_Error( |
| 116 |
'rest_invalid_type', |
| 117 |
/* translators: %s: Parameter name. */ |
| 118 |
sprintf( __( '%s must be a string or an array of strings.', 'gutenberg' ), $param ) |
| 119 |
); |
| 120 |
} |
| 121 |
|
| 122 |
foreach ( $items as $item ) { |
| 123 |
if ( ! is_string( $item ) || ! in_array( $item, $valid_sizes, true ) ) { |
| 124 |
return new WP_Error( |
| 125 |
'rest_not_in_enum', |
| 126 |
/* translators: %s: Parameter name. */ |
| 127 |
sprintf( __( '%s contains an invalid image size.', 'gutenberg' ), $param ) |
| 128 |
); |
| 129 |
} |
| 130 |
} |
| 131 |
|
| 132 |
return true; |
| 133 |
}, |
| 134 |
), |
| 135 |
'convert_format' => array( |
| 136 |
'description' => __( 'Whether to convert image formats.', 'gutenberg' ), |
| 137 |
'type' => 'boolean', |
| 138 |
'default' => true, |
| 139 |
), |
| 140 |
), |
| 141 |
), |
| 142 |
'allow_batch' => $this->allow_batch, |
| 143 |
'schema' => array( $this, 'get_public_item_schema' ), |
| 144 |
), |
| 145 |
true // Override core's route so 'scaled' is included in the enum. |
| 146 |
); |
| 147 |
|
| 148 |
register_rest_route( |
| 149 |
$this->namespace, |
| 150 |
'/' . $this->rest_base . '/(?P<id>[\d]+)/finalize', |
| 151 |
array( |
| 152 |
array( |
| 153 |
'methods' => WP_REST_Server::CREATABLE, |
| 154 |
'callback' => array( $this, 'finalize_item' ), |
| 155 |
'permission_callback' => array( $this, 'edit_media_item_permissions_check' ), |
| 156 |
'args' => array( |
| 157 |
'id' => array( |
| 158 |
'description' => __( 'Unique identifier for the attachment.', 'gutenberg' ), |
| 159 |
'type' => 'integer', |
| 160 |
), |
| 161 |
'sub_sizes' => array( |
| 162 |
'description' => __( 'Array of sub-size metadata collected from sideload responses.', 'gutenberg' ), |
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'type' => 'array', |
| 164 |
'default' => array(), |
| 165 |
'items' => array( |
| 166 |
'type' => 'object', |
| 167 |
'properties' => array( |
| 168 |
'image_size' => array( |
| 169 |
// Uses a multi-type schema instead of `oneOf` because WordPress's |
| 170 |
// `rest_is_array()` treats scalar strings as single-element lists, |
| 171 |
// so both a `{type: string}` and `{type: array}` oneOf schema would |
| 172 |
// match a plain string and trigger a "matches more than one" |
| 173 |
// validation error. |
| 174 |
'description' => __( 'Size name, or an array of size names when a single file is registered under multiple sizes with matching dimensions.', 'gutenberg' ), |
| 175 |
'type' => array( 'string', 'array' ), |
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'items' => array( |
| 177 |
'type' => 'string', |
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), |
| 179 |
'required' => true, |
| 180 |
), |
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'width' => array( |
| 182 |
'type' => 'integer', |
| 183 |
'minimum' => 1, |
| 184 |
), |
| 185 |
'height' => array( |
| 186 |
'type' => 'integer', |
| 187 |
'minimum' => 1, |
| 188 |
), |
| 189 |
'file' => array( |
| 190 |
'type' => 'string', |
| 191 |
'minLength' => 1, |
| 192 |
), |
| 193 |
'mime_type' => array( |
| 194 |
'type' => 'string', |
| 195 |
'pattern' => '^image/.*', |
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), |
| 197 |
'filesize' => array( |
| 198 |
'type' => 'integer', |
| 199 |
'minimum' => 1, |
| 200 |
), |
| 201 |
'original_image' => array( |
| 202 |
'type' => 'string', |
| 203 |
'minLength' => 1, |
| 204 |
), |
| 205 |
), |
| 206 |
), |
| 207 |
), |
| 208 |
), |
| 209 |
), |
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'allow_batch' => $this->allow_batch, |
| 211 |
'schema' => array( $this, 'get_public_item_schema' ), |
| 212 |
) |
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); |
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} |
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|
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/** |
| 217 |
* Checks if a given request has access to create an attachment. |
| 218 |
* |
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* Skips the server-side image type support check when the client |
| 220 |
* will handle image processing (generate_sub_sizes is false). Still |
| 221 |
* HEIC/HEIF uploads always skip the check, since the browser's canvas |
| 222 |
* fallback can decode them even when the server cannot. |
| 223 |
* |
| 224 |
* @param WP_REST_Request $request Full details about the request. |
| 225 |
* @return true|WP_Error True if the request has access to create items, WP_Error object otherwise. |
| 226 |
*/ |
| 227 |
public function create_item_permissions_check( $request ) { |
| 228 |
$bypass_mime_check = false === $request['generate_sub_sizes']; |
| 229 |
|
| 230 |
/* |
| 231 |
* Always allow still HEIC/HEIF uploads through even if the server's |
| 232 |
* image editor doesn't support them. The client-side canvas fallback |
| 233 |
* handles processing using the browser's native HEVC decoder. |
| 234 |
* |
| 235 |
* The '-sequence' variants (multi-frame Live Photos) are deliberately |
| 236 |
* excluded: neither the server nor the browser fallback can process |
| 237 |
* them yet, so they should fall through to the standard unsupported |
| 238 |
* mime-type error rather than be stored unprocessable. |
| 239 |
*/ |
| 240 |
if ( ! $bypass_mime_check ) { |
| 241 |
$still_heic_mime_types = array( 'image/heic', 'image/heif' ); |
| 242 |
$files = $request->get_file_params(); |
| 243 |
|
| 244 |
if ( |
| 245 |
! empty( $files['file']['type'] ) && |
| 246 |
in_array( $files['file']['type'], $still_heic_mime_types, true ) |
| 247 |
) { |
| 248 |
$bypass_mime_check = true; |
| 249 |
} |
| 250 |
} |
| 251 |
|
| 252 |
if ( $bypass_mime_check ) { |
| 253 |
add_filter( 'wp_prevent_unsupported_mime_type_uploads', '__return_false' ); |
| 254 |
} |
| 255 |
|
| 256 |
$result = parent::create_item_permissions_check( $request ); |
| 257 |
|
| 258 |
if ( $bypass_mime_check ) { |
| 259 |
remove_filter( 'wp_prevent_unsupported_mime_type_uploads', '__return_false' ); |
| 260 |
} |
| 261 |
|
| 262 |
return $result; |
| 263 |
} |
| 264 |
|
| 265 |
/** |
| 266 |
* Retrieves an array of endpoint arguments from the item schema for the controller. |
| 267 |
* |
| 268 |
* @param string $method Optional. HTTP method of the request. The arguments for `CREATABLE` requests are |
| 269 |
* checked for required values and may fall-back to a given default, this is not done |
| 270 |
* on `EDITABLE` requests. Default WP_REST_Server::CREATABLE. |
| 271 |
* @return array<string, array<string, mixed>> Endpoint arguments keyed by argument name. |
| 272 |
*/ |
| 273 |
public function get_endpoint_args_for_item_schema( $method = WP_REST_Server::CREATABLE ) { |
| 274 |
$args = rest_get_endpoint_args_for_schema( $this->get_item_schema(), $method ); |
| 275 |
|
| 276 |
if ( WP_REST_Server::CREATABLE === $method ) { |
| 277 |
$args['generate_sub_sizes'] = array( |
| 278 |
'type' => 'boolean', |
| 279 |
'default' => true, |
| 280 |
'description' => __( 'Whether to generate image sub sizes.', 'gutenberg' ), |
| 281 |
); |
| 282 |
$args['convert_format'] = array( |
| 283 |
'type' => 'boolean', |
| 284 |
'default' => true, |
| 285 |
'description' => __( 'Whether to convert image formats.', 'gutenberg' ), |
| 286 |
); |
| 287 |
$args['url'] = array( |
| 288 |
'type' => 'string', |
| 289 |
'format' => 'uri', |
| 290 |
'description' => __( 'URL of an external image to sideload into the media library, instead of uploading a file.', 'gutenberg' ), |
| 291 |
'sanitize_callback' => 'sanitize_url', |
| 292 |
'validate_callback' => static function ( $url, WP_REST_Request $request, string $param ) { |
| 293 |
/* |
| 294 |
* A custom validate_callback replaces the default |
| 295 |
* rest_validate_request_arg(), so re-apply it first to keep |
| 296 |
* the schema checks (string type, uri format) enforced. |
| 297 |
*/ |
| 298 |
$valid = rest_validate_request_arg( $url, $request, $param ); |
| 299 |
if ( is_wp_error( $valid ) ) { |
| 300 |
return $valid; |
| 301 |
} |
| 302 |
/** @var non-empty-string $url */ |
| 303 |
|
| 304 |
/* |
| 305 |
* Reject URLs that are not safe to request server-side. wp_http_validate_url() |
| 306 |
* enforces an HTTP(S) scheme and blocks private, local, and otherwise |
| 307 |
* disallowed hosts, guarding the sideload against SSRF. |
| 308 |
*/ |
| 309 |
if ( false === wp_http_validate_url( $url ) ) { |
| 310 |
return new WP_Error( |
| 311 |
'rest_invalid_url', |
| 312 |
__( 'Invalid URL. Provide a valid, publicly reachable HTTP or HTTPS image URL.', 'gutenberg' ), |
| 313 |
array( 'status' => 400 ) |
| 314 |
); |
| 315 |
} |
| 316 |
|
| 317 |
return true; |
| 318 |
}, |
| 319 |
); |
| 320 |
} |
| 321 |
|
| 322 |
return $args; |
| 323 |
} |
| 324 |
|
| 325 |
/** |
| 326 |
* Retrieves the attachment's schema, conforming to JSON Schema. |
| 327 |
* |
| 328 |
* Adds exif_orientation field to the schema. |
| 329 |
* |
| 330 |
* @return array Item schema data. |
| 331 |
*/ |
| 332 |
public function get_item_schema() { |
| 333 |
$schema = parent::get_item_schema(); |
| 334 |
|
| 335 |
$schema['properties']['exif_orientation'] = array( |
| 336 |
'description' => __( 'EXIF orientation value from the original image. Values 1-8 follow the EXIF specification. A value other than 1 indicates the image needs rotation.', 'gutenberg' ), |
| 337 |
'type' => 'integer', |
| 338 |
'context' => array( 'edit' ), |
| 339 |
'readonly' => true, |
| 340 |
); |
| 341 |
|
| 342 |
$schema['properties']['image_output_format'] = array( |
| 343 |
'description' => __( 'The output MIME type this image should be converted to, based on the image_editor_output_format filter. Null if no conversion is needed.', 'gutenberg' ), |
| 344 |
'type' => array( 'string', 'null' ), |
| 345 |
'context' => array( 'edit' ), |
| 346 |
'readonly' => true, |
| 347 |
); |
| 348 |
|
| 349 |
$schema['properties']['image_save_progressive'] = array( |
| 350 |
'description' => __( 'Whether to use progressive/interlaced encoding when saving this image.', 'gutenberg' ), |
| 351 |
'type' => 'boolean', |
| 352 |
'context' => array( 'edit' ), |
| 353 |
'readonly' => true, |
| 354 |
); |
| 355 |
|
| 356 |
// Enumerate the registered sub-sizes so the schema documents exactly which |
| 357 |
// keys may appear under "sizes". |
| 358 |
$size_quality_properties = array(); |
| 359 |
foreach ( array_keys( wp_get_registered_image_subsizes() ) as $size_name ) { |
| 360 |
$size_quality_properties[ $size_name ] = array( |
| 361 |
'type' => 'integer', |
| 362 |
'minimum' => 1, |
| 363 |
'maximum' => 100, |
| 364 |
); |
| 365 |
} |
| 366 |
|
| 367 |
$schema['properties']['image_quality'] = array( |
| 368 |
'description' => __( 'Encode quality (1-100) from the wp_editor_set_quality filter, resolved against the output MIME type. "default" applies to the full-size image; "sizes" lists per-registered-size overrides where the filtered value differs from "default".', 'gutenberg' ), |
| 369 |
'type' => 'object', |
| 370 |
'context' => array( 'edit' ), |
| 371 |
'readonly' => true, |
| 372 |
'properties' => array( |
| 373 |
'default' => array( |
| 374 |
'type' => 'integer', |
| 375 |
'minimum' => 1, |
| 376 |
'maximum' => 100, |
| 377 |
), |
| 378 |
'sizes' => array( |
| 379 |
'type' => 'object', |
| 380 |
'properties' => $size_quality_properties, |
| 381 |
), |
| 382 |
), |
| 383 |
); |
| 384 |
|
| 385 |
return $schema; |
| 386 |
} |
| 387 |
|
| 388 |
/** |
| 389 |
* Prepares a single attachment output for response. |
| 390 |
* |
| 391 |
* Ensures 'missing_image_sizes' is set for PDFs and not just images. |
| 392 |
* Adds 'exif_orientation' for images that need client-side rotation. |
| 393 |
* |
| 394 |
* @param WP_Post $item Attachment object. |
| 395 |
* @param WP_REST_Request $request Request object. |
| 396 |
* @return WP_REST_Response Response object. |
| 397 |
*/ |
| 398 |
public function prepare_item_for_response( $item, $request ): WP_REST_Response { |
| 399 |
$response = parent::prepare_item_for_response( $item, $request ); |
| 400 |
|
| 401 |
$data = $response->get_data(); |
| 402 |
|
| 403 |
$fields = $this->get_fields_for_response( $request ); |
| 404 |
|
| 405 |
// Add EXIF orientation for images. |
| 406 |
if ( rest_is_field_included( 'exif_orientation', $fields ) ) { |
| 407 |
if ( wp_attachment_is_image( $item ) ) { |
| 408 |
$metadata = wp_get_attachment_metadata( $item->ID, true ); |
| 409 |
|
| 410 |
// Get the EXIF orientation from the image metadata. |
| 411 |
// This is stored by wp_read_image_metadata() during upload. |
| 412 |
// Values: |
| 413 |
// 0 = undefined (no EXIF data), treat as no rotation needed |
| 414 |
// 1 = normal (no rotation needed) |
| 415 |
// 2-8 = various rotations/flips needed |
| 416 |
$orientation = 1; // Default: no rotation needed. |
| 417 |
if ( |
| 418 |
is_array( $metadata ) && |
| 419 |
isset( $metadata['image_meta']['orientation'] ) && |
| 420 |
(int) $metadata['image_meta']['orientation'] > 0 |
| 421 |
) { |
| 422 |
$orientation = (int) $metadata['image_meta']['orientation']; |
| 423 |
} |
| 424 |
|
| 425 |
$data['exif_orientation'] = $orientation; |
| 426 |
} |
| 427 |
} |
| 428 |
|
| 429 |
// Add per-file output format for images. |
| 430 |
if ( rest_is_field_included( 'image_output_format', $fields ) ) { |
| 431 |
if ( wp_attachment_is_image( $item ) ) { |
| 432 |
$mime_type = get_post_mime_type( $item ); |
| 433 |
$filename = get_attached_file( $item->ID ); |
| 434 |
|
| 435 |
/** This filter is documented in wp-includes/class-wp-image-editor.php */ |
| 436 |
$output_formats = apply_filters( |
| 437 |
'image_editor_output_format', // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound |
| 438 |
array( $mime_type => $mime_type ), |
| 439 |
$filename ? $filename : '', |
| 440 |
$mime_type |
| 441 |
); |
| 442 |
|
| 443 |
$output_mime = $output_formats[ $mime_type ] ?? $mime_type; |
| 444 |
$data['image_output_format'] = ( $output_mime !== $mime_type ) ? $output_mime : null; |
| 445 |
} |
| 446 |
} |
| 447 |
|
| 448 |
// Add progressive/interlaced encoding setting for images. |
| 449 |
if ( rest_is_field_included( 'image_save_progressive', $fields ) ) { |
| 450 |
if ( wp_attachment_is_image( $item ) ) { |
| 451 |
$mime_type = get_post_mime_type( $item ); |
| 452 |
|
| 453 |
/** This filter is documented in wp-includes/class-wp-image-editor-imagick.php */ |
| 454 |
$data['image_save_progressive'] = (bool) apply_filters( |
| 455 |
'image_save_progressive', // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound |
| 456 |
false, |
| 457 |
$mime_type |
| 458 |
); |
| 459 |
} |
| 460 |
} |
| 461 |
|
| 462 |
// Add per-file, size-aware encode quality for images. |
| 463 |
if ( rest_is_field_included( 'image_quality', $fields ) ) { |
| 464 |
if ( wp_attachment_is_image( $item ) ) { |
| 465 |
$mime_type = (string) get_post_mime_type( $item ); |
| 466 |
$filename = get_attached_file( $item->ID ); |
| 467 |
|
| 468 |
// Resolve the output MIME type the same way core's |
| 469 |
// WP_Image_Editor::set_quality() does: quality is filtered |
| 470 |
// against the format the file will actually be saved as. |
| 471 |
/** This filter is documented in wp-includes/class-wp-image-editor.php */ |
| 472 |
$output_formats = apply_filters( |
| 473 |
'image_editor_output_format', // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound |
| 474 |
array( $mime_type => $mime_type ), |
| 475 |
$filename ? $filename : '', |
| 476 |
$mime_type |
| 477 |
); |
| 478 |
$output_mime = $output_formats[ $mime_type ] ?? $mime_type; |
| 479 |
|
| 480 |
$metadata = wp_get_attachment_metadata( $item->ID, true ); |
| 481 |
$full_width = max( 0, ( is_array( $metadata ) && isset( $metadata['width'] ) ) ? (int) $metadata['width'] : 0 ); |
| 482 |
$full_height = max( 0, ( is_array( $metadata ) && isset( $metadata['height'] ) ) ? (int) $metadata['height'] : 0 ); |
| 483 |
|
| 484 |
$full_quality = $this->get_image_encode_quality( |
| 485 |
$output_mime, |
| 486 |
array( |
| 487 |
'width' => $full_width, |
| 488 |
'height' => $full_height, |
| 489 |
) |
| 490 |
); |
| 491 |
|
| 492 |
$size_quality = array(); |
| 493 |
foreach ( wp_get_registered_image_subsizes() as $size_name => $size_data ) { |
| 494 |
$quality = $this->get_image_encode_quality( |
| 495 |
$output_mime, |
| 496 |
array( |
| 497 |
'width' => (int) $size_data['width'], |
| 498 |
'height' => (int) $size_data['height'], |
| 499 |
) |
| 500 |
); |
| 501 |
|
| 502 |
// Only report sizes that diverge from the full-size value |
| 503 |
// to keep the response payload small. |
| 504 |
if ( $quality !== $full_quality ) { |
| 505 |
$size_quality[ $size_name ] = $quality; |
| 506 |
} |
| 507 |
} |
| 508 |
|
| 509 |
$data['image_quality'] = array( |
| 510 |
'default' => $full_quality, |
| 511 |
'sizes' => $size_quality, |
| 512 |
); |
| 513 |
} |
| 514 |
} |
| 515 |
|
| 516 |
if ( |
| 517 |
rest_is_field_included( 'missing_image_sizes', $fields ) && |
| 518 |
empty( $data['missing_image_sizes'] ) |
| 519 |
) { |
| 520 |
$mime_type = get_post_mime_type( $item ); |
| 521 |
|
| 522 |
if ( 'application/pdf' === $mime_type ) { |
| 523 |
$metadata = wp_get_attachment_metadata( $item->ID, true ); |
| 524 |
|
| 525 |
if ( ! is_array( $metadata ) ) { |
| 526 |
$metadata = array(); |
| 527 |
} |
| 528 |
|
| 529 |
$metadata['sizes'] = $metadata['sizes'] ?? array(); |
| 530 |
|
| 531 |
$fallback_sizes = array( |
| 532 |
'thumbnail', |
| 533 |
'medium', |
| 534 |
'large', |
| 535 |
); |
| 536 |
|
| 537 |
// The filter might have been added by ::create_item(). |
| 538 |
remove_filter( 'fallback_intermediate_image_sizes', '__return_empty_array', 100 ); |
| 539 |
|
| 540 |
/** This filter is documented in wp-admin/includes/image.php */ |
| 541 |
$fallback_sizes = apply_filters( 'fallback_intermediate_image_sizes', $fallback_sizes, $metadata ); // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound |
| 542 |
|
| 543 |
$registered_sizes = wp_get_registered_image_subsizes(); |
| 544 |
$merged_sizes = array_keys( array_intersect_key( $registered_sizes, array_flip( $fallback_sizes ) ) ); |
| 545 |
|
| 546 |
$missing_image_sizes = array_diff( $merged_sizes, array_keys( $metadata['sizes'] ) ); |
| 547 |
$data['missing_image_sizes'] = $missing_image_sizes; |
| 548 |
} |
| 549 |
} |
| 550 |
|
| 551 |
$context = ! empty( $request['context'] ) ? $request['context'] : 'view'; |
| 552 |
$data = $this->add_additional_fields_to_object( $data, $request ); |
| 553 |
$data = $this->filter_response_by_context( $data, $context ); |
| 554 |
|
| 555 |
$links = $response->get_links(); |
| 556 |
|
| 557 |
$response = rest_ensure_response( $data ); |
| 558 |
|
| 559 |
foreach ( $links as $rel => $rel_links ) { |
| 560 |
foreach ( $rel_links as $link ) { |
| 561 |
$response->add_link( $rel, $link['href'], $link['attributes'] ); |
| 562 |
} |
| 563 |
} |
| 564 |
|
| 565 |
return $response; |
| 566 |
} |
| 567 |
|
| 568 |
/** |
| 569 |
* Creates a single attachment. |
| 570 |
* |
| 571 |
* @param WP_REST_Request $request Full details about the request. |
| 572 |
* @return WP_REST_Response|WP_Error Response object on success, WP_Error object on failure. |
| 573 |
*/ |
| 574 |
public function create_item( $request ) { |
| 575 |
if ( ! $request['generate_sub_sizes'] ) { |
| 576 |
add_filter( 'intermediate_image_sizes_advanced', '__return_empty_array', 100 ); |
| 577 |
add_filter( 'fallback_intermediate_image_sizes', '__return_empty_array', 100 ); |
| 578 |
// Disable server-side EXIF rotation so the client can handle it. |
| 579 |
// This preserves the original orientation value in the metadata. |
| 580 |
add_filter( 'wp_image_maybe_exif_rotate', '__return_false', 100 ); |
| 581 |
// Disable server-side big image scaling since the client handles it. |
| 582 |
add_filter( 'big_image_size_threshold', '__return_zero', 100 ); |
| 583 |
} |
| 584 |
|
| 585 |
if ( ! $request['convert_format'] ) { |
| 586 |
add_filter( 'image_editor_output_format', '__return_empty_array', 100 ); |
| 587 |
} |
| 588 |
|
| 589 |
/* |
| 590 |
* When a URL is supplied instead of an uploaded file, sideload the |
| 591 |
* remote image on the server. This avoids a cross-origin browser fetch, |
| 592 |
* which fails under cross-origin isolation. The sub-size and scaling |
| 593 |
* filters applied above still govern whether derivatives are generated. |
| 594 |
*/ |
| 595 |
if ( ! empty( $request['url'] ) ) { |
| 596 |
$response = $this->create_item_from_url( $request ); |
| 597 |
} else { |
| 598 |
$response = parent::create_item( $request ); |
| 599 |
} |
| 600 |
|
| 601 |
remove_filter( 'intermediate_image_sizes_advanced', '__return_empty_array', 100 ); |
| 602 |
remove_filter( 'fallback_intermediate_image_sizes', '__return_empty_array', 100 ); |
| 603 |
remove_filter( 'wp_image_maybe_exif_rotate', '__return_false', 100 ); |
| 604 |
remove_filter( 'big_image_size_threshold', '__return_zero', 100 ); |
| 605 |
remove_filter( 'image_editor_output_format', '__return_empty_array', 100 ); |
| 606 |
|
| 607 |
// Recompute image_output_format now that __return_empty_array is removed. |
| 608 |
if ( ! is_wp_error( $response ) ) { |
| 609 |
$data = $response->get_data(); |
| 610 |
if ( ! empty( $data['id'] ) && wp_attachment_is_image( $data['id'] ) ) { |
| 611 |
$mime_type = get_post_mime_type( $data['id'] ); |
| 612 |
$filename = get_attached_file( $data['id'] ); |
| 613 |
|
| 614 |
/** This filter is documented in wp-includes/class-wp-image-editor.php */ |
| 615 |
$output_formats = apply_filters( |
| 616 |
'image_editor_output_format', // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound |
| 617 |
array( $mime_type => $mime_type ), |
| 618 |
$filename ? $filename : '', |
| 619 |
$mime_type |
| 620 |
); |
| 621 |
|
| 622 |
$output_mime = $output_formats[ $mime_type ] ?? $mime_type; |
| 623 |
$data['image_output_format'] = ( $output_mime !== $mime_type ) ? $output_mime : null; |
| 624 |
|
| 625 |
/** This filter is documented in wp-includes/class-wp-image-editor-imagick.php */ |
| 626 |
$data['image_save_progressive'] = (bool) apply_filters( |
| 627 |
'image_save_progressive', // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound |
| 628 |
false, |
| 629 |
$mime_type |
| 630 |
); |
| 631 |
|
| 632 |
$response->set_data( $data ); |
| 633 |
} |
| 634 |
} |
| 635 |
|
| 636 |
return $response; |
| 637 |
} |
| 638 |
|
| 639 |
/** |
| 640 |
* Sideloads an external image from a URL into the media library. |
| 641 |
* |
| 642 |
* Downloads the remote file on the server, avoiding a cross-origin browser |
| 643 |
* fetch that fails under cross-origin isolation. Whether sub-sizes are |
| 644 |
* generated is governed by the filters applied in create_item(). |
| 645 |
* |
| 646 |
* @param WP_REST_Request $request Full details about the request. |
| 647 |
* @return WP_REST_Response|WP_Error Response object on success, WP_Error object on failure. |
| 648 |
*/ |
| 649 |
protected function create_item_from_url( $request ) { |
| 650 |
// Sideloading downloads and stores a file, so require the upload capability. |
| 651 |
if ( ! current_user_can( 'upload_files' ) ) { |
| 652 |
return new WP_Error( |
| 653 |
'rest_cannot_create', |
| 654 |
__( 'Sorry, you are not allowed to upload media on this site.', 'gutenberg' ), |
| 655 |
array( 'status' => rest_authorization_required_code() ) |
| 656 |
); |
| 657 |
} |
| 658 |
|
| 659 |
require_once ABSPATH . 'wp-admin/includes/file.php'; |
| 660 |
require_once ABSPATH . 'wp-admin/includes/media.php'; |
| 661 |
require_once ABSPATH . 'wp-admin/includes/image.php'; |
| 662 |
|
| 663 |
$url = $request['url']; |
| 664 |
$post_id = ! empty( $request['post'] ) ? (int) $request['post'] : 0; |
| 665 |
|
| 666 |
// Derive the filename from the URL path before downloading anything. |
| 667 |
$url_path = wp_parse_url( $url, PHP_URL_PATH ); |
| 668 |
$filename = $url_path ? wp_basename( $url_path ) : ''; |
| 669 |
if ( '' === $filename ) { |
| 670 |
return new WP_Error( |
| 671 |
'rest_invalid_url', |
| 672 |
__( 'Could not determine a filename from the provided URL.', 'gutenberg' ), |
| 673 |
array( 'status' => 400 ) |
| 674 |
); |
| 675 |
} |
| 676 |
|
| 677 |
/* |
| 678 |
* Only download URLs whose extension maps to an allowed image MIME type. |
| 679 |
* The sideload handler would reject other types anyway (via |
| 680 |
* wp_check_filetype_and_ext()), but checking first avoids downloading |
| 681 |
* files that can never be accepted, such as PHP scripts. |
| 682 |
*/ |
| 683 |
$filetype = wp_check_filetype( $filename ); |
| 684 |
if ( ! $filetype['type'] || ! str_starts_with( $filetype['type'], 'image/' ) ) { |
| 685 |
return new WP_Error( |
| 686 |
'rest_invalid_url', |
| 687 |
__( 'The provided URL does not point to a supported image file.', 'gutenberg' ), |
| 688 |
array( 'status' => 400 ) |
| 689 |
); |
| 690 |
} |
| 691 |
|
| 692 |
/* |
| 693 |
* Download the remote file with WordPress's HTTP API, which validates |
| 694 |
* the host and blocks requests to private or local addresses. This is |
| 695 |
* the same primitive core's media_sideload_image() relies on. |
| 696 |
*/ |
| 697 |
$tmp_file = download_url( $url ); |
| 698 |
if ( is_wp_error( $tmp_file ) ) { |
| 699 |
return $tmp_file; |
| 700 |
} |
| 701 |
|
| 702 |
$file_array = array( |
| 703 |
'name' => $filename, |
| 704 |
'tmp_name' => $tmp_file, |
| 705 |
); |
| 706 |
|
| 707 |
$size_check = self::check_upload_size( $file_array ); |
| 708 |
if ( is_wp_error( $size_check ) ) { |
| 709 |
if ( file_exists( $tmp_file ) ) { |
| 710 |
wp_delete_file( $tmp_file ); |
| 711 |
} |
| 712 |
return $size_check; |
| 713 |
} |
| 714 |
|
| 715 |
$attachment_id = media_handle_sideload( $file_array, $post_id ); |
| 716 |
|
| 717 |
if ( is_wp_error( $attachment_id ) ) { |
| 718 |
/* |
| 719 |
* media_handle_sideload() deletes the temp file on success; remove |
| 720 |
* it explicitly when the sideload fails. |
| 721 |
*/ |
| 722 |
if ( file_exists( $tmp_file ) ) { |
| 723 |
wp_delete_file( $tmp_file ); |
| 724 |
} |
| 725 |
return $attachment_id; |
| 726 |
} |
| 727 |
|
| 728 |
$attachment = get_post( $attachment_id ); |
| 729 |
|
| 730 |
$request->set_param( 'context', 'edit' ); |
| 731 |
|
| 732 |
/* |
| 733 |
* media_handle_sideload() fires the standard insert hooks (including |
| 734 |
* wp_after_insert_post), but not the REST-specific action, so fire it |
| 735 |
* here for parity with the uploaded-file path in create_item(). |
| 736 |
*/ |
| 737 |
/** This action is documented in wp-includes/rest-api/endpoints/class-wp-rest-attachments-controller.php */ |
| 738 |
do_action( 'rest_after_insert_attachment', $attachment, $request, true ); |
| 739 |
|
| 740 |
$response = $this->prepare_item_for_response( $attachment, $request ); |
| 741 |
$response->set_status( 201 ); |
| 742 |
$response->header( 'Location', rest_url( rest_get_route_for_post( $attachment_id ) ) ); |
| 743 |
|
| 744 |
return $response; |
| 745 |
} |
| 746 |
|
| 747 |
/** |
| 748 |
* Finalizes an attachment after client-side media processing. |
| 749 |
* |
| 750 |
* Triggers the {@see 'wp_generate_attachment_metadata'} filter so that |
| 751 |
* server-side plugins can process the attachment after all client-side |
| 752 |
* operations (upload, thumbnail generation, sideloads) are complete. |
| 753 |
* |
| 754 |
* @param WP_REST_Request $request Full details about the request. |
| 755 |
* @return WP_REST_Response|WP_Error Response object on success, WP_Error object on failure. |
| 756 |
*/ |
| 757 |
public function finalize_item( WP_REST_Request $request ) { |
| 758 |
$attachment_id = $request['id']; |
| 759 |
|
| 760 |
$post = $this->get_post( $attachment_id ); |
| 761 |
|
| 762 |
if ( is_wp_error( $post ) ) { |
| 763 |
return $post; |
| 764 |
} |
| 765 |
|
| 766 |
$metadata = wp_get_attachment_metadata( $attachment_id ); |
| 767 |
|
| 768 |
if ( ! is_array( $metadata ) ) { |
| 769 |
$metadata = array(); |
| 770 |
} |
| 771 |
|
| 772 |
// Apply all sub-size metadata collected from sideload responses. |
| 773 |
$sub_sizes = $request['sub_sizes'] ?? array(); |
| 774 |
|
| 775 |
foreach ( $sub_sizes as $sub_size ) { |
| 776 |
$image_size = $sub_size['image_size']; |
| 777 |
|
| 778 |
// When multiple size names share identical dimensions the client |
| 779 |
// sends a single sub-size entry with an array of names. Register the |
| 780 |
// same file under each name. Arrays only contain regular sizes. |
| 781 |
if ( is_array( $image_size ) ) { |
| 782 |
$metadata['sizes'] = $metadata['sizes'] ?? array(); |
| 783 |
|
| 784 |
foreach ( $image_size as $name ) { |
| 785 |
$metadata['sizes'][ $name ] = array( |
| 786 |
'width' => $sub_size['width'] ?? 0, |
| 787 |
'height' => $sub_size['height'] ?? 0, |
| 788 |
'file' => $sub_size['file'] ?? '', |
| 789 |
'mime-type' => $sub_size['mime_type'] ?? '', |
| 790 |
'filesize' => $sub_size['filesize'] ?? 0, |
| 791 |
); |
| 792 |
} |
| 793 |
continue; |
| 794 |
} |
| 795 |
|
| 796 |
if ( 'original' === $image_size || 'scaled' === $image_size ) { |
| 797 |
// Skip malformed entries so a bad payload cannot blank out the |
| 798 |
// main file metadata. |
| 799 |
if ( empty( $sub_size['file'] ) ) { |
| 800 |
continue; |
| 801 |
} |
| 802 |
|
| 803 |
// Record the supplied full-size image (from sideload_item()) as |
| 804 |
// the main file, keeping the current attached file as |
| 805 |
// `original_image`. A 'scaled' image is downsized and an |
| 806 |
// 'original' image is rotated; both have any EXIF orientation |
| 807 |
// already applied by the client. |
| 808 |
if ( ! empty( $sub_size['original_image'] ) ) { |
| 809 |
$metadata['original_image'] = $sub_size['original_image']; |
| 810 |
} |
| 811 |
$metadata['width'] = $sub_size['width'] ?? 0; |
| 812 |
$metadata['height'] = $sub_size['height'] ?? 0; |
| 813 |
$metadata['filesize'] = $sub_size['filesize'] ?? 0; |
| 814 |
$metadata['file'] = $sub_size['file']; |
| 815 |
|
| 816 |
// The supplied image has its orientation applied already, so |
| 817 |
// reset the stored value (from the upload) to 1, as |
| 818 |
// wp_create_image_subsizes() does for both its scale and rotate |
| 819 |
// paths. Otherwise exif_orientation would still report the |
| 820 |
// pre-rotation value and the client would rotate the image |
| 821 |
// again on a re-fetch. |
| 822 |
if ( ! empty( $metadata['image_meta']['orientation'] ) ) { |
| 823 |
$metadata['image_meta']['orientation'] = 1; |
| 824 |
} |
| 825 |
} elseif ( self::IMAGE_SIZE_SOURCE_ORIGINAL === $image_size ) { |
| 826 |
// Source-format original: stored under its own meta key so the |
| 827 |
// scaled-sideload flow (which writes 'original_image') cannot |
| 828 |
// clobber it. 'original_image' keeps pointing at the |
| 829 |
// web-viewable JPEG derivative. Cleanup on attachment delete |
| 830 |
// is handled by a delete_attachment hook that reads this key. |
| 831 |
$metadata[ self::META_KEY_SOURCE_IMAGE ] = $sub_size['file']; |
| 832 |
} elseif ( self::IMAGE_SIZE_ANIMATED_VIDEO === $image_size ) { |
| 833 |
// Converted video companion of an animated GIF. Stored |
| 834 |
// under its own key; the GIF stays the attachment. The |
| 835 |
// editor reads this key to switch the block to a video; |
| 836 |
// companion cleanup lives in lib/media/animated-gif-to-video.php. |
| 837 |
$metadata[ self::META_KEY_ANIMATED_VIDEO ] = $sub_size['file']; |
| 838 |
} elseif ( self::IMAGE_SIZE_ANIMATED_VIDEO_POSTER === $image_size ) { |
| 839 |
// Static first-frame poster for the converted video. Used as |
| 840 |
// the video block's poster and deleted alongside the video. |
| 841 |
// See lib/media/animated-gif-to-video.php. |
| 842 |
$metadata[ self::META_KEY_ANIMATED_VIDEO_POSTER ] = $sub_size['file']; |
| 843 |
} else { |
| 844 |
$metadata['sizes'] = $metadata['sizes'] ?? array(); |
| 845 |
|
| 846 |
$metadata['sizes'][ $image_size ] = array( |
| 847 |
'width' => $sub_size['width'] ?? 0, |
| 848 |
'height' => $sub_size['height'] ?? 0, |
| 849 |
'file' => $sub_size['file'] ?? '', |
| 850 |
'mime-type' => $sub_size['mime_type'] ?? '', |
| 851 |
'filesize' => $sub_size['filesize'] ?? 0, |
| 852 |
); |
| 853 |
} |
| 854 |
} |
| 855 |
|
| 856 |
/** |
| 857 |
* Filters the attachment metadata after client-side processing. |
| 858 |
* |
| 859 |
* This re-applies the wp_generate_attachment_metadata filter so that |
| 860 |
* server-side plugins (e.g. those adding custom image sizes or |
| 861 |
* processing metadata) can run after client-side uploads are complete. |
| 862 |
* |
| 863 |
* @param array $metadata Attachment metadata. |
| 864 |
* @param int $attachment_id Attachment ID. |
| 865 |
* @param string $context Context: 'create' or 'update'. |
| 866 |
*/ |
| 867 |
// phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound |
| 868 |
$metadata = apply_filters( 'wp_generate_attachment_metadata', $metadata, $attachment_id, 'update' ); |
| 869 |
|
| 870 |
wp_update_attachment_metadata( $attachment_id, $metadata ); |
| 871 |
|
| 872 |
$response_request = new WP_REST_Request( |
| 873 |
WP_REST_Server::READABLE, |
| 874 |
rest_get_route_for_post( $attachment_id ) |
| 875 |
); |
| 876 |
|
| 877 |
$response_request['context'] = 'edit'; |
| 878 |
|
| 879 |
if ( isset( $request['_fields'] ) ) { |
| 880 |
$response_request['_fields'] = $request['_fields']; |
| 881 |
} |
| 882 |
|
| 883 |
return $this->prepare_item_for_response( get_post( $attachment_id ), $response_request ); |
| 884 |
} |
| 885 |
|
| 886 |
/** |
| 887 |
* Checks if a given request has access to sideload a file. |
| 888 |
* |
| 889 |
* Sideloading a file for an existing attachment |
| 890 |
* requires both update and create permissions. |
| 891 |
* |
| 892 |
* @param WP_REST_Request $request Full details about the request. |
| 893 |
* @return true|WP_Error True if the request has access to update the item, WP_Error object otherwise. |
| 894 |
*/ |
| 895 |
public function sideload_item_permissions_check( $request ) { |
| 896 |
return $this->edit_media_item_permissions_check( $request ); |
| 897 |
} |
| 898 |
|
| 899 |
/** |
| 900 |
* Filters {@see 'wp_unique_filename'} during sideloads. |
| 901 |
* |
| 902 |
* {@see wp_unique_filename()} will always add numeric suffix if the name looks like a sub-size to avoid conflicts. |
| 903 |
* |
| 904 |
* Adding this closure to the filter helps work around this safeguard. |
| 905 |
* |
| 906 |
* Example: when uploading myphoto.jpeg, WordPress normally creates myphoto-150x150.jpeg, |
| 907 |
* and when uploading myphoto-150x150.jpeg, it will be renamed to myphoto-150x150-1.jpeg |
| 908 |
* However, here it is desired not to add the suffix in order to maintain the same |
| 909 |
* naming convention as if the file was uploaded regularly. |
| 910 |
* |
| 911 |
* @link https://github.com/WordPress/wordpress-develop/blob/30954f7ac0840cfdad464928021d7f380940c347/src/wp-includes/functions.php#L2576-L2582 |
| 912 |
* |
| 913 |
* @param string $filename Unique file name. |
| 914 |
* @param string $dir Directory path. |
| 915 |
* @param int|string $number The highest number that was used to make the file name unique |
| 916 |
* or an empty string if unused. |
| 917 |
* @param string $attachment_filename Original attachment file name. |
| 918 |
* @return string Filtered file name. |
| 919 |
*/ |
| 920 |
private static function filter_wp_unique_filename( $filename, $dir, $number, $attachment_filename ) { |
| 921 |
if ( empty( $number ) || ! $attachment_filename ) { |
| 922 |
return $filename; |
| 923 |
} |
| 924 |
|
| 925 |
$ext = pathinfo( $filename, PATHINFO_EXTENSION ); |
| 926 |
$name = pathinfo( $filename, PATHINFO_FILENAME ); |
| 927 |
$orig_name = pathinfo( $attachment_filename, PATHINFO_FILENAME ); |
| 928 |
|
| 929 |
if ( ! $ext || ! $name ) { |
| 930 |
return $filename; |
| 931 |
} |
| 932 |
|
| 933 |
$matches = array(); |
| 934 |
if ( preg_match( '/(.*)(-\d+x\d+|-scaled)-' . $number . '$/', $name, $matches ) ) { |
| 935 |
$filename_without_suffix = $matches[1] . $matches[2] . ".$ext"; |
| 936 |
if ( $matches[1] === $orig_name ) { |
| 937 |
return $filename_without_suffix; |
| 938 |
} |
| 939 |
} |
| 940 |
|
| 941 |
return $filename; |
| 942 |
} |
| 943 |
|
| 944 |
/** |
| 945 |
* Validates that uploaded image dimensions are appropriate for the specified image size. |
| 946 |
* |
| 947 |
* @param int $width Uploaded image width. |
| 948 |
* @param int $height Uploaded image height. |
| 949 |
* @param string|array $image_size The target image size name, or an array |
| 950 |
* of names that share the same dimensions. |
| 951 |
* @param int $attachment_id The attachment ID. |
| 952 |
* @return true|WP_Error True if valid, WP_Error if invalid. |
| 953 |
*/ |
| 954 |
private function validate_image_dimensions( int $width, int $height, $image_size, int $attachment_id ) { |
| 955 |
// 'animated_video' companion file: video, not an image. Skip *all* |
| 956 |
// dimension checks (the caller passes (0, 0) for this case so the |
| 957 |
// positive-dimension assertion below would otherwise fire). |
| 958 |
if ( self::IMAGE_SIZE_ANIMATED_VIDEO === $image_size ) { |
| 959 |
return true; |
| 960 |
} |
| 961 |
|
| 962 |
// Source-format original companion file: no dimension constraint, and |
| 963 |
// the caller passes (0, 0) because the source format (e.g. HEIC) may |
| 964 |
// not be readable by wp_getimagesize() at all. |
| 965 |
if ( self::IMAGE_SIZE_SOURCE_ORIGINAL === $image_size ) { |
| 966 |
return true; |
| 967 |
} |
| 968 |
|
| 969 |
// Dimensions must be positive for all sizes. |
| 970 |
if ( $width <= 0 || $height <= 0 ) { |
| 971 |
return new WP_Error( |
| 972 |
'rest_upload_invalid_dimensions', |
| 973 |
__( 'Uploaded image must have positive dimensions.', 'gutenberg' ), |
| 974 |
array( 'status' => 400 ) |
| 975 |
); |
| 976 |
} |
| 977 |
|
| 978 |
// Arrays only contain regular sub-size names that share dimensions. |
| 979 |
// Validate each one against its registered constraints. |
| 980 |
if ( is_array( $image_size ) ) { |
| 981 |
foreach ( $image_size as $name ) { |
| 982 |
$result = $this->validate_image_dimensions( $width, $height, $name, $attachment_id ); |
| 983 |
if ( is_wp_error( $result ) ) { |
| 984 |
return $result; |
| 985 |
} |
| 986 |
} |
| 987 |
return true; |
| 988 |
} |
| 989 |
|
| 990 |
// 'animated_video_poster' companion: a static poster image for the |
| 991 |
// converted video. It is a real image (so it has positive dimensions) |
| 992 |
// but is not a registered sub-size, so it has no dimension constraint. |
| 993 |
if ( self::IMAGE_SIZE_ANIMATED_VIDEO_POSTER === $image_size ) { |
| 994 |
return true; |
| 995 |
} |
| 996 |
|
| 997 |
// 'original' size: the full-size image that replaces the main file (see |
| 998 |
// sideload_item()/finalize_item()). The endpoint expects any EXIF |
| 999 |
// orientation to be applied to the image already, which can swap width |
| 1000 |
// and height, so the dimensions must match the stored dimensions or be |
| 1001 |
// their transpose. |
| 1002 |
if ( 'original' === $image_size ) { |
| 1003 |
$metadata = wp_get_attachment_metadata( $attachment_id, true ); |
| 1004 |
if ( is_array( $metadata ) && isset( $metadata['width'], $metadata['height'] ) ) { |
| 1005 |
$expected_width = (int) $metadata['width']; |
| 1006 |
$expected_height = (int) $metadata['height']; |
| 1007 |
|
| 1008 |
$matches_dimensions = $width === $expected_width && $height === $expected_height; |
| 1009 |
$transposes_dimensions = $width === $expected_height && $height === $expected_width; |
| 1010 |
|
| 1011 |
if ( ! $matches_dimensions && ! $transposes_dimensions ) { |
| 1012 |
return new WP_Error( |
| 1013 |
'rest_upload_dimension_mismatch', |
| 1014 |
sprintf( |
| 1015 |
/* translators: 1: actual width, 2: actual height, 3: expected width, 4: expected height */ |
| 1016 |
__( 'Uploaded image dimensions (%1$dx%2$d) do not match original image dimensions (%3$dx%4$d).', 'gutenberg' ), |
| 1017 |
$width, |
| 1018 |
$height, |
| 1019 |
$expected_width, |
| 1020 |
$expected_height |
| 1021 |
), |
| 1022 |
array( 'status' => 400 ) |
| 1023 |
); |
| 1024 |
} |
| 1025 |
} |
| 1026 |
return true; |
| 1027 |
} |
| 1028 |
|
| 1029 |
// 'full' size (PDF thumbnails) and 'scaled': no further constraints. |
| 1030 |
if ( 'full' === $image_size || 'scaled' === $image_size ) { |
| 1031 |
return true; |
| 1032 |
} |
| 1033 |
|
| 1034 |
// Regular image sizes: validate against registered size constraints. |
| 1035 |
$registered_sizes = wp_get_registered_image_subsizes(); |
| 1036 |
|
| 1037 |
if ( ! isset( $registered_sizes[ $image_size ] ) ) { |
| 1038 |
return new WP_Error( |
| 1039 |
'rest_upload_unknown_size', |
| 1040 |
__( 'Unknown image size.', 'gutenberg' ), |
| 1041 |
array( 'status' => 400 ) |
| 1042 |
); |
| 1043 |
} |
| 1044 |
|
| 1045 |
$size_data = $registered_sizes[ $image_size ]; |
| 1046 |
$max_width = (int) $size_data['width']; |
| 1047 |
$max_height = (int) $size_data['height']; |
| 1048 |
|
| 1049 |
// Validate dimensions don't exceed the registered size maximums. |
| 1050 |
// Allow 1px tolerance for rounding differences. |
| 1051 |
$tolerance = 1; |
| 1052 |
|
| 1053 |
if ( $max_width > 0 && $width > $max_width + $tolerance ) { |
| 1054 |
return new WP_Error( |
| 1055 |
'rest_upload_dimension_mismatch', |
| 1056 |
sprintf( |
| 1057 |
/* translators: 1: image size name, 2: max width, 3: actual width */ |
| 1058 |
__( 'Uploaded image width (%3$d) exceeds maximum for "%1$s" size (%2$d).', 'gutenberg' ), |
| 1059 |
$image_size, |
| 1060 |
$max_width, |
| 1061 |
$width |
| 1062 |
), |
| 1063 |
array( 'status' => 400 ) |
| 1064 |
); |
| 1065 |
} |
| 1066 |
|
| 1067 |
if ( $max_height > 0 && $height > $max_height + $tolerance ) { |
| 1068 |
return new WP_Error( |
| 1069 |
'rest_upload_dimension_mismatch', |
| 1070 |
sprintf( |
| 1071 |
/* translators: 1: image size name, 2: max height, 3: actual height */ |
| 1072 |
__( 'Uploaded image height (%3$d) exceeds maximum for "%1$s" size (%2$d).', 'gutenberg' ), |
| 1073 |
$image_size, |
| 1074 |
$max_height, |
| 1075 |
$height |
| 1076 |
), |
| 1077 |
array( 'status' => 400 ) |
| 1078 |
); |
| 1079 |
} |
| 1080 |
|
| 1081 |
return true; |
| 1082 |
} |
| 1083 |
|
| 1084 |
/** |
| 1085 |
* Side-loads a media file without creating an attachment. |
| 1086 |
* |
| 1087 |
* @param WP_REST_Request $request Full details about the request. |
| 1088 |
* @return WP_REST_Response|WP_Error Response object on success, WP_Error object on failure. |
| 1089 |
*/ |
| 1090 |
public function sideload_item( WP_REST_Request $request ) { |
| 1091 |
$attachment_id = $request['id']; |
| 1092 |
|
| 1093 |
$post = $this->get_post( $attachment_id ); |
| 1094 |
|
| 1095 |
if ( is_wp_error( $post ) ) { |
| 1096 |
return $post; |
| 1097 |
} |
| 1098 |
|
| 1099 |
if ( |
| 1100 |
! wp_attachment_is_image( $post ) && |
| 1101 |
! wp_attachment_is( 'pdf', $post ) |
| 1102 |
) { |
| 1103 |
return new WP_Error( |
| 1104 |
'rest_post_invalid_id', |
| 1105 |
__( 'Invalid post ID, only images and PDFs can be sideloaded.', 'gutenberg' ), |
| 1106 |
array( 'status' => 400 ) |
| 1107 |
); |
| 1108 |
} |
| 1109 |
|
| 1110 |
if ( ! $request['convert_format'] ) { |
| 1111 |
// Prevent image conversion as that is done client-side. |
| 1112 |
add_filter( 'image_editor_output_format', '__return_empty_array', 100 ); |
| 1113 |
} |
| 1114 |
|
| 1115 |
// Get the file via $_FILES or raw data. |
| 1116 |
$files = $request->get_file_params(); |
| 1117 |
$headers = $request->get_headers(); |
| 1118 |
|
| 1119 |
/* |
| 1120 |
* wp_unique_filename() will always add numeric suffix if the name looks like a sub-size to avoid conflicts. |
| 1121 |
* See https://github.com/WordPress/wordpress-develop/blob/30954f7ac0840cfdad464928021d7f380940c347/src/wp-includes/functions.php#L2576-L2582 |
| 1122 |
* With the following filter we can work around this safeguard. |
| 1123 |
*/ |
| 1124 |
|
| 1125 |
$attachment_filename = get_attached_file( $attachment_id, true ); |
| 1126 |
$attachment_filename = $attachment_filename ? wp_basename( $attachment_filename ) : null; |
| 1127 |
|
| 1128 |
/** |
| 1129 |
* @param string $filename Unique file name. |
| 1130 |
* @param string $ext File extension. Example: ".png". |
| 1131 |
* @param string $dir Directory path. |
| 1132 |
* @param callable|null $unique_filename_callback Callback function that generates the unique file name. |
| 1133 |
* @param string[] $alt_filenames Array of alternate file names that were checked for collisions. |
| 1134 |
* @param int|string $number The highest number that was used to make the file name unique |
| 1135 |
* or an empty string if unused. |
| 1136 |
* @return string Filtered file name. |
| 1137 |
*/ |
| 1138 |
$filter_filename = static function ( $filename, $ext, $dir, $unique_filename_callback, $alt_filenames, $number ) use ( $attachment_filename ) { |
| 1139 |
return self::filter_wp_unique_filename( $filename, $dir, $number, $attachment_filename ); |
| 1140 |
}; |
| 1141 |
|
| 1142 |
add_filter( 'wp_unique_filename', $filter_filename, 10, 6 ); |
| 1143 |
|
| 1144 |
$parent_post = get_post_parent( $attachment_id ); |
| 1145 |
|
| 1146 |
$time = null; |
| 1147 |
|
| 1148 |
// Matches logic in media_handle_upload(). |
| 1149 |
// The post date doesn't usually matter for pages, so don't backdate this upload. |
| 1150 |
if ( $parent_post && 'page' !== $parent_post->post_type && substr( $parent_post->post_date, 0, 4 ) > 0 ) { |
| 1151 |
$time = $parent_post->post_date; |
| 1152 |
} |
| 1153 |
|
| 1154 |
if ( ! empty( $files ) ) { |
| 1155 |
$file = $this->upload_from_file( $files, $headers, $time ); |
| 1156 |
} else { |
| 1157 |
$file = $this->upload_from_data( $request->get_body(), $headers, $time ); |
| 1158 |
} |
| 1159 |
|
| 1160 |
remove_filter( 'wp_unique_filename', $filter_filename ); |
| 1161 |
remove_filter( 'image_editor_output_format', '__return_empty_array', 100 ); |
| 1162 |
|
| 1163 |
if ( is_wp_error( $file ) ) { |
| 1164 |
return $file; |
| 1165 |
} |
| 1166 |
|
| 1167 |
$type = $file['type']; |
| 1168 |
$path = $file['file']; |
| 1169 |
|
| 1170 |
$image_size = $request['image_size']; |
| 1171 |
|
| 1172 |
// Read dimensions once up-front. Needed both for early-error handling |
| 1173 |
// (corrupted/unsupported files) and for populating the sub-size payload |
| 1174 |
// below. 'original' and 'scaled' both replace the main file, so their |
| 1175 |
// dimensions are written to metadata; 'original' is additionally |
| 1176 |
// validated against the stored attachment size (it must match it or be |
| 1177 |
// its transpose). |
| 1178 |
// |
| 1179 |
// 'animated_video' companions are video files (MP4/WebM); the image |
| 1180 |
// helpers can't read their dimensions and would falsely report the |
| 1181 |
// upload as "corrupted or unsupported". Source-format originals |
| 1182 |
// ('source_original', e.g. the HEIC kept next to its JPEG derivative) |
| 1183 |
// are exempt for the same reason: their dimensions are neither |
| 1184 |
// validated nor recorded, and wp_getimagesize() may not be able to |
| 1185 |
// read the source format at all on servers without HEIC/HEIF support. |
| 1186 |
// Skip the read for both cases; validate_image_dimensions() also |
| 1187 |
// short-circuits them below. |
| 1188 |
$skip_dimension_read = |
| 1189 |
self::IMAGE_SIZE_ANIMATED_VIDEO === $image_size || |
| 1190 |
self::IMAGE_SIZE_SOURCE_ORIGINAL === $image_size; |
| 1191 |
|
| 1192 |
$size = $skip_dimension_read ? array( 0, 0 ) : wp_getimagesize( $path ); |
| 1193 |
|
| 1194 |
if ( ! $size ) { |
| 1195 |
// Could not determine dimensions (corrupted file, unsupported format). |
| 1196 |
wp_delete_file( $path ); |
| 1197 |
return new WP_Error( |
| 1198 |
'rest_upload_invalid_image', |
| 1199 |
__( 'Could not read image dimensions. The file may be corrupted or an unsupported format.', 'gutenberg' ), |
| 1200 |
array( 'status' => 400 ) |
| 1201 |
); |
| 1202 |
} |
| 1203 |
|
| 1204 |
$validation = $this->validate_image_dimensions( $size[0], $size[1], $image_size, $attachment_id ); |
| 1205 |
if ( is_wp_error( $validation ) ) { |
| 1206 |
// Clean up the uploaded file. |
| 1207 |
wp_delete_file( $path ); |
| 1208 |
return $validation; |
| 1209 |
} |
| 1210 |
|
| 1211 |
// Build sub-size data to return to the client. |
| 1212 |
// The client accumulates these and sends them all to the finalize endpoint. |
| 1213 |
// `image_size` may be a single string or an array of names that share the |
| 1214 |
// same dimensions and therefore reuse a single sideloaded file. Arrays |
| 1215 |
// only carry regular sub-sizes; the special keys below ('original', |
| 1216 |
// 'scaled', and the source-format original) are always scalar strings. |
| 1217 |
$sub_size_data = array( |
| 1218 |
'image_size' => $image_size, |
| 1219 |
); |
| 1220 |
|
| 1221 |
if ( is_array( $image_size ) ) { |
| 1222 |
$sub_size_data['width'] = $size[0]; |
| 1223 |
$sub_size_data['height'] = $size[1]; |
| 1224 |
$sub_size_data['file'] = wp_basename( $path ); |
| 1225 |
$sub_size_data['mime_type'] = $type; |
| 1226 |
$sub_size_data['filesize'] = wp_filesize( $path ); |
| 1227 |
} elseif ( self::IMAGE_SIZE_SOURCE_ORIGINAL === $image_size ) { |
| 1228 |
// Source-format original. finalize_item() writes the filename to |
| 1229 |
// $metadata[ self::META_KEY_SOURCE_IMAGE ] (separate from |
| 1230 |
// 'original_image', which the scaled-sideload flow owns). Cleanup on |
| 1231 |
// attachment delete is handled by a delete_attachment hook that reads |
| 1232 |
// this key. |
| 1233 |
$sub_size_data['file'] = wp_basename( $path ); |
| 1234 |
} elseif ( self::IMAGE_SIZE_ANIMATED_VIDEO === $image_size ) { |
| 1235 |
// Converted animated-GIF video companion. finalize_item() |
| 1236 |
// writes the filename to $metadata['animated_video']; the editor |
| 1237 |
// reads it to switch the block to a video, and a delete_attachment |
| 1238 |
// hook removes it. See lib/media/animated-gif-to-video.php. |
| 1239 |
$sub_size_data['file'] = wp_basename( $path ); |
| 1240 |
} elseif ( self::IMAGE_SIZE_ANIMATED_VIDEO_POSTER === $image_size ) { |
| 1241 |
// Static poster for the converted video. finalize_item() writes |
| 1242 |
// the filename to $metadata['animated_video_poster']; used as the |
| 1243 |
// video block's poster and deleted with the video. |
| 1244 |
$sub_size_data['file'] = wp_basename( $path ); |
| 1245 |
} elseif ( 'scaled' === $image_size || 'original' === $image_size ) { |
| 1246 |
// 'scaled' and 'original' both replace the attachment's main file |
| 1247 |
// with the supplied image and keep the file being replaced as |
| 1248 |
// `original_image`, which is the untouched upload. A 'scaled' image is |
| 1249 |
// downsized and an 'original' image has any EXIF orientation already |
| 1250 |
// applied. This is the same swap WordPress makes when it scales or |
| 1251 |
// rotates an image on upload. See core's _wp_image_meta_replace_original(). |
| 1252 |
$current_file = get_attached_file( $attachment_id, true ); |
| 1253 |
|
| 1254 |
if ( ! $current_file ) { |
| 1255 |
return new WP_Error( |
| 1256 |
'rest_sideload_no_attached_file', |
| 1257 |
__( 'Unable to retrieve the attached file for this attachment.', 'gutenberg' ), |
| 1258 |
array( 'status' => 404 ) |
| 1259 |
); |
| 1260 |
} |
| 1261 |
|
| 1262 |
$sub_size_data['original_image'] = wp_basename( $current_file ); |
| 1263 |
|
| 1264 |
// Update the attached file to point to the supplied image. |
| 1265 |
// This writes to _wp_attached_file meta, not _wp_attachment_metadata. |
| 1266 |
// Guard against a failed update so a stale original is not recorded. |
| 1267 |
if ( |
| 1268 |
get_attached_file( $attachment_id, true ) !== $path && |
| 1269 |
! update_attached_file( $attachment_id, $path ) |
| 1270 |
) { |
| 1271 |
return new WP_Error( |
| 1272 |
'rest_sideload_update_attached_file_failed', |
| 1273 |
__( 'Unable to update the attached file for this attachment.', 'gutenberg' ), |
| 1274 |
array( 'status' => 500 ) |
| 1275 |
); |
| 1276 |
} |
| 1277 |
|
| 1278 |
$sub_size_data['width'] = $size[0]; |
| 1279 |
$sub_size_data['height'] = $size[1]; |
| 1280 |
$sub_size_data['filesize'] = wp_filesize( $path ); |
| 1281 |
$sub_size_data['file'] = _wp_relative_upload_path( $path ); |
| 1282 |
} else { |
| 1283 |
$sub_size_data['width'] = $size[0]; |
| 1284 |
$sub_size_data['height'] = $size[1]; |
| 1285 |
$sub_size_data['file'] = wp_basename( $path ); |
| 1286 |
$sub_size_data['mime_type'] = $type; |
| 1287 |
$sub_size_data['filesize'] = wp_filesize( $path ); |
| 1288 |
} |
| 1289 |
|
| 1290 |
return rest_ensure_response( $sub_size_data ); |
| 1291 |
} |
| 1292 |
|
| 1293 |
/** |
| 1294 |
* Resolves the encode quality WordPress would use for an image. |
| 1295 |
* |
| 1296 |
* Prefers the core wp_get_image_encode_quality() helper when available, and |
| 1297 |
* otherwise mirrors WP_Image_Editor::set_quality() inline for WordPress |
| 1298 |
* versions that predate it: per-format default, the wp_editor_set_quality |
| 1299 |
* filter, the jpeg_quality filter for JPEG output, then resets non-numeric |
| 1300 |
* or out-of-range values to the default and squashes 0 to 1. |
| 1301 |
* |
| 1302 |
* wp_get_image_encode_quality() is proposed for WordPress core in |
| 1303 |
* https://github.com/WordPress/wordpress-develop/pull/11856; until it lands |
| 1304 |
* the function_exists() guard falls back to the inline implementation below. |
| 1305 |
* |
| 1306 |
* @param non-empty-string $mime_type The output image MIME type, e.g. 'image/jpeg'. |
| 1307 |
* @param array{ width?: non-negative-int, height?: non-negative-int } $size Dimensions ('width', 'height') for the wp_editor_set_quality filter. |
| 1308 |
* @return int<1, 100> Encode quality between 1 and 100. |
| 1309 |
*/ |
| 1310 |
private function get_image_encode_quality( string $mime_type, array $size = array() ): int { |
| 1311 |
if ( function_exists( 'wp_get_image_encode_quality' ) ) { |
| 1312 |
return wp_get_image_encode_quality( $mime_type, $size ); |
| 1313 |
} |
| 1314 |
|
| 1315 |
// Mirror WP_Image_Editor::get_default_quality(): WebP defaults to 86, |
| 1316 |
// everything else to 82. |
| 1317 |
$default_quality = ( 'image/webp' === $mime_type ) ? 86 : 82; |
| 1318 |
|
| 1319 |
/** This filter is documented in wp-includes/class-wp-image-editor.php */ |
| 1320 |
$quality = apply_filters( |
| 1321 |
'wp_editor_set_quality', // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound |
| 1322 |
$default_quality, |
| 1323 |
$mime_type, |
| 1324 |
$size |
| 1325 |
); |
| 1326 |
|
| 1327 |
if ( 'image/jpeg' === $mime_type ) { |
| 1328 |
/** This filter is documented in wp-includes/class-wp-image-editor.php */ |
| 1329 |
$quality = apply_filters( 'jpeg_quality', $quality, 'image_resize' ); // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedHooknameFound |
| 1330 |
} |
| 1331 |
|
| 1332 |
if ( ! is_numeric( $quality ) ) { |
| 1333 |
$quality = $default_quality; |
| 1334 |
} else { |
| 1335 |
$quality = (int) $quality; |
| 1336 |
} |
| 1337 |
|
| 1338 |
// Reset out-of-range values to the default, matching WP_Image_Editor::set_quality(). |
| 1339 |
if ( $quality < 0 || $quality > 100 ) { |
| 1340 |
$quality = $default_quality; |
| 1341 |
} |
| 1342 |
|
| 1343 |
// Allow 0, but squash to 1, matching WP_Image_Editor::set_quality(). |
| 1344 |
if ( 0 === $quality ) { |
| 1345 |
$quality = 1; |
| 1346 |
} |
| 1347 |
|
| 1348 |
return $quality; |
| 1349 |
} |
| 1350 |
} |
| 1351 |
|
