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class-avcf-abilities-media.php
1843 lines
| 1 | <?php |
| 2 | /** |
| 3 | * Media library MCP abilities. |
| 4 | * |
| 5 | * Registers Atarim/* abilities for working with media attachments — |
| 6 | * listing/searching, reading individual items with full metadata, |
| 7 | * updating attachment fields, bulk alt-text editing, safe deletion with |
| 8 | * in-use detection, uploading/replacing files, and core sub-size |
| 9 | * regeneration. |
| 10 | * |
| 11 | * Third-party image OPTIMIZER integration (ShortPixel / Smush / EWWW / |
| 12 | * Imagify, i.e. driving an installed compressor) is intentionally NOT in |
| 13 | * this cluster — that belongs in a third-party/{plugin}/ integration |
| 14 | * module. Core, plugin-free sub-size regeneration (with an optional |
| 15 | * quality re-encode of the derivatives) DOES live here, as regenerate-image. |
| 16 | * |
| 17 | * Exposed abilities: |
| 18 | * atarim/list-media Media with filters (mime, missing_alt, attached, search, date range). |
| 19 | * atarim/get-media Single attachment with dimensions, on-demand file size. |
| 20 | * atarim/update-media Update alt_text, title, caption, description. |
| 21 | * atarim/bulk-update-alt-text Array of {id, alt_text} tuples with per-id results. |
| 22 | * atarim/delete-media Single attachment delete with in-use safety guard. |
| 23 | * atarim/bulk-delete-media Bulk delete with dry_run default and confirm_in_use guard. |
| 24 | * atarim/upload-media Sideload a file into the media library. |
| 25 | * atarim/replace-media-file Replace an attachment's underlying file. |
| 26 | * atarim/replace-media-in-content Swap one attachment for another across content. |
| 27 | * atarim/regenerate-image Regenerate sub-sizes (single or batch ≤25), optional quality re-encode of derivatives; original untouched. |
| 28 | * |
| 29 | * Note: abilities are exposed automatically — class-avcf-mcp.php builds the |
| 30 | * server tool list dynamically from wp_get_abilities(), including every |
| 31 | * ability whose meta has mcp.public = true and mcp.type = 'tool'. No manual |
| 32 | * $tools entry is required. (Exposure can still be suppressed via the |
| 33 | * avcf_mcp_blocked_abilities blocklist.) |
| 34 | * |
| 35 | * @package atarim-visual-collaboration |
| 36 | */ |
| 37 | |
| 38 | if ( ! defined('ABSPATH') ) { |
| 39 | exit; |
| 40 | } |
| 41 | |
| 42 | class AVCF_Abilities_Media extends AVCF_Abilities_Base { |
| 43 | |
| 44 | public function register() { |
| 45 | |
| 46 | // ---- list-media ---- |
| 47 | wp_register_ability( 'atarim/list-media', [ |
| 48 | 'label' => 'List Media', |
| 49 | 'description' => 'Returns attachment items with filters: MIME type (image, image/jpeg, video, etc.), missing_alt (audit gap), attached/unattached, free-text search, upload date range, and pagination. By default the file_size field is NOT populated (reading from disk per item is slow on large libraries) — pass include_file_size: true to opt in. Missing files are flagged with file_missing: true.', |
| 50 | 'category' => 'atarim', |
| 51 | 'input_schema' => [ |
| 52 | 'type' => 'object', |
| 53 | 'properties' => [ |
| 54 | 'mime_type' => [ |
| 55 | 'type' => 'string', |
| 56 | 'description' => 'Filter by MIME type or prefix. "image" matches all images; "image/jpeg" matches only JPEGs; "video" all videos; "application/pdf" specific PDFs.', |
| 57 | 'minLength' => 1, |
| 58 | ], |
| 59 | 'attached' => [ |
| 60 | 'type' => 'string', |
| 61 | 'description' => '"yes" returns only attachments linked to a post (post_parent > 0). "no" returns only unattached items. Omit for both.', |
| 62 | 'enum' => [ 'yes', 'no' ], |
| 63 | ], |
| 64 | 'missing_alt' => [ |
| 65 | 'type' => 'boolean', |
| 66 | 'description' => 'When true, return only image attachments whose _wp_attachment_image_alt meta is empty or unset. Useful for accessibility audits. Ignored for non-image MIME types.', |
| 67 | 'default' => false, |
| 68 | ], |
| 69 | 'search' => [ |
| 70 | 'type' => 'string', |
| 71 | 'description' => 'Search across title, file name, and alt text.', |
| 72 | 'minLength' => 1, |
| 73 | ], |
| 74 | 'date_from' => [ |
| 75 | 'type' => 'string', |
| 76 | 'description' => 'Items uploaded on or after this date. ISO 8601 or strtotime()-parseable.', |
| 77 | ], |
| 78 | 'date_to' => [ |
| 79 | 'type' => 'string', |
| 80 | 'description' => 'Items uploaded on or before this date.', |
| 81 | ], |
| 82 | 'author' => [ |
| 83 | 'type' => 'integer', |
| 84 | 'description' => 'Filter by uploader user ID.', |
| 85 | 'minimum' => 1, |
| 86 | ], |
| 87 | 'orderby' => [ |
| 88 | 'type' => 'string', |
| 89 | 'enum' => [ 'date', 'modified', 'title', 'ID' ], |
| 90 | 'default' => 'date', |
| 91 | ], |
| 92 | 'order' => [ |
| 93 | 'type' => 'string', |
| 94 | 'enum' => [ 'ASC', 'DESC' ], |
| 95 | 'default' => 'DESC', |
| 96 | ], |
| 97 | 'limit' => [ |
| 98 | 'type' => 'integer', |
| 99 | 'description' => 'Max items. -1 for all (slow on big libraries). Defaults to 50.', |
| 100 | 'default' => 50, |
| 101 | 'minimum' => -1, |
| 102 | ], |
| 103 | 'offset' => [ |
| 104 | 'type' => 'integer', |
| 105 | 'description' => 'Skip this many items (pagination).', |
| 106 | 'default' => 0, |
| 107 | 'minimum' => 0, |
| 108 | ], |
| 109 | 'include_file_size' => [ |
| 110 | 'type' => 'boolean', |
| 111 | 'description' => 'Read each file size from disk. Adds one filesystem call per returned item. Defaults to false. Items whose file is missing on disk are flagged with file_missing: true.', |
| 112 | 'default' => false, |
| 113 | ], |
| 114 | ], |
| 115 | 'additionalProperties' => false, |
| 116 | ], |
| 117 | 'output_schema' => [ |
| 118 | 'type' => 'object', |
| 119 | 'properties' => [ |
| 120 | 'total' => [ 'type' => 'integer' ], |
| 121 | 'returned' => [ 'type' => 'integer' ], |
| 122 | 'offset' => [ 'type' => 'integer' ], |
| 123 | 'items' => [ |
| 124 | 'type' => 'array', |
| 125 | 'items' => [ |
| 126 | 'type' => 'object', |
| 127 | 'properties' => [ |
| 128 | 'id' => [ 'type' => 'integer' ], |
| 129 | 'title' => [ 'type' => 'string' ], |
| 130 | 'slug' => [ 'type' => 'string' ], |
| 131 | 'mime_type' => [ 'type' => 'string' ], |
| 132 | 'url' => [ 'type' => 'string' ], |
| 133 | 'alt_text' => [ 'type' => 'string' ], |
| 134 | 'caption' => [ 'type' => 'string' ], |
| 135 | 'description' => [ 'type' => 'string' ], |
| 136 | 'attached_to' => [ 'type' => 'integer' ], |
| 137 | 'author' => [ 'type' => 'integer' ], |
| 138 | 'date' => [ 'type' => 'string' ], |
| 139 | 'modified' => [ 'type' => 'string' ], |
| 140 | 'width' => [ 'type' => 'integer' ], |
| 141 | 'height' => [ 'type' => 'integer' ], |
| 142 | 'file_size' => [ 'type' => [ 'integer', 'null' ] ], |
| 143 | 'file_missing' => [ 'type' => 'boolean' ], |
| 144 | ], |
| 145 | ], |
| 146 | ], |
| 147 | ], |
| 148 | 'required' => [ 'total', 'returned', 'items' ], |
| 149 | ], |
| 150 | 'execute_callback' => function( $input = [] ) { |
| 151 | $limit = isset( $input['limit'] ) ? (int) $input['limit'] : 50; |
| 152 | $offset = isset( $input['offset'] ) ? max( 0, (int) $input['offset'] ) : 0; |
| 153 | |
| 154 | $args = [ |
| 155 | 'post_type' => 'attachment', |
| 156 | 'post_status' => 'inherit', |
| 157 | 'posts_per_page' => $limit, |
| 158 | 'offset' => $offset, |
| 159 | 'orderby' => isset( $input['orderby'] ) ? sanitize_key( $input['orderby'] ) : 'date', |
| 160 | 'order' => ( isset( $input['order'] ) && strtoupper( $input['order'] ) === 'ASC' ) ? 'ASC' : 'DESC', |
| 161 | ]; |
| 162 | |
| 163 | // MIME filter — WP_Query accepts a prefix like "image" or a full type. |
| 164 | if ( ! empty( $input['mime_type'] ) ) { |
| 165 | $args['post_mime_type'] = (string) $input['mime_type']; |
| 166 | } |
| 167 | |
| 168 | // Attached / unattached. |
| 169 | if ( isset( $input['attached'] ) ) { |
| 170 | if ( $input['attached'] === 'no' ) { |
| 171 | $args['post_parent'] = 0; |
| 172 | } elseif ( $input['attached'] === 'yes' ) { |
| 173 | $args['post_parent__not_in'] = [ 0 ]; |
| 174 | } |
| 175 | } |
| 176 | |
| 177 | if ( isset( $input['author'] ) ) { |
| 178 | $args['author'] = (int) $input['author']; |
| 179 | } |
| 180 | |
| 181 | if ( ! empty( $input['search'] ) ) { |
| 182 | $args['s'] = (string) $input['search']; |
| 183 | } |
| 184 | |
| 185 | // Date range — WP_Query date_query. |
| 186 | if ( ! empty( $input['date_from'] ) || ! empty( $input['date_to'] ) ) { |
| 187 | $date_query = []; |
| 188 | if ( ! empty( $input['date_from'] ) ) { |
| 189 | list( $after, , $err ) = $this->avcf_normalize_post_date( (string) $input['date_from'] ); |
| 190 | if ( $err !== null ) { |
| 191 | return [ 'total' => 0, 'returned' => 0, 'offset' => $offset, 'items' => [], 'message' => 'date_from: ' . $err ]; |
| 192 | } |
| 193 | $date_query['after'] = $after; |
| 194 | } |
| 195 | if ( ! empty( $input['date_to'] ) ) { |
| 196 | list( $before, , $err ) = $this->avcf_normalize_post_date( (string) $input['date_to'] ); |
| 197 | if ( $err !== null ) { |
| 198 | return [ 'total' => 0, 'returned' => 0, 'offset' => $offset, 'items' => [], 'message' => 'date_to: ' . $err ]; |
| 199 | } |
| 200 | $date_query['before'] = $before; |
| 201 | } |
| 202 | $date_query['inclusive'] = true; |
| 203 | $args['date_query'] = [ $date_query ]; |
| 204 | } |
| 205 | |
| 206 | // missing_alt — meta_query for empty/unset alt text. Only meaningful for images. |
| 207 | $missing_alt = ! empty( $input['missing_alt'] ); |
| 208 | if ( $missing_alt ) { |
| 209 | $args['meta_query'] = [ |
| 210 | 'relation' => 'OR', |
| 211 | [ 'key' => '_wp_attachment_image_alt', 'compare' => 'NOT EXISTS' ], |
| 212 | [ 'key' => '_wp_attachment_image_alt', 'value' => '', 'compare' => '=' ], |
| 213 | ]; |
| 214 | // If the caller didn't already constrain to images, do it for them — alt text |
| 215 | // is meaningless on non-image attachments. |
| 216 | if ( empty( $args['post_mime_type'] ) ) { |
| 217 | $args['post_mime_type'] = 'image'; |
| 218 | } |
| 219 | } |
| 220 | |
| 221 | $include_file_size = ! empty( $input['include_file_size'] ); |
| 222 | |
| 223 | $query = new \WP_Query( $args ); |
| 224 | $items = []; |
| 225 | |
| 226 | foreach ( $query->posts as $att ) { |
| 227 | $alt = (string) get_post_meta( $att->ID, '_wp_attachment_image_alt', true ); |
| 228 | $meta = wp_get_attachment_metadata( $att->ID ); |
| 229 | $width = isset( $meta['width'] ) ? (int) $meta['width'] : 0; |
| 230 | $height = isset( $meta['height'] ) ? (int) $meta['height'] : 0; |
| 231 | $url = (string) wp_get_attachment_url( $att->ID ); |
| 232 | |
| 233 | $file_size = null; |
| 234 | $file_missing = false; |
| 235 | if ( $include_file_size ) { |
| 236 | $path = get_attached_file( $att->ID ); |
| 237 | if ( $path && file_exists( $path ) ) { |
| 238 | $file_size = (int) filesize( $path ); |
| 239 | } else { |
| 240 | $file_missing = true; |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | $items[] = [ |
| 245 | 'id' => (int) $att->ID, |
| 246 | 'title' => (string) $att->post_title, |
| 247 | 'slug' => (string) $att->post_name, |
| 248 | 'mime_type' => (string) $att->post_mime_type, |
| 249 | 'url' => $url, |
| 250 | 'alt_text' => $alt, |
| 251 | 'caption' => (string) $att->post_excerpt, |
| 252 | 'description' => (string) $att->post_content, |
| 253 | 'attached_to' => (int) $att->post_parent, |
| 254 | 'author' => (int) $att->post_author, |
| 255 | 'date' => (string) $att->post_date_gmt, |
| 256 | 'modified' => (string) $att->post_modified_gmt, |
| 257 | 'width' => $width, |
| 258 | 'height' => $height, |
| 259 | 'file_size' => $file_size, |
| 260 | 'file_missing' => $file_missing, |
| 261 | ]; |
| 262 | } |
| 263 | |
| 264 | return [ |
| 265 | 'total' => (int) $query->found_posts, |
| 266 | 'returned' => count( $items ), |
| 267 | 'offset' => $offset, |
| 268 | 'items' => $items, |
| 269 | ]; |
| 270 | }, |
| 271 | 'permission_callback' => function() { |
| 272 | return current_user_can( 'upload_files' ); |
| 273 | }, |
| 274 | 'meta' => [ |
| 275 | 'mcp' => [ 'public' => true, 'type' => 'tool' ], |
| 276 | 'annotations' => [ 'readonly' => true, 'destructive' => false, 'idempotent' => true ], |
| 277 | ], |
| 278 | ] ); |
| 279 | |
| 280 | // ---- get-media ---- |
| 281 | wp_register_ability( 'atarim/get-media', [ |
| 282 | 'label' => 'Get Media', |
| 283 | 'description' => 'Returns full detail for a single attachment by ID: file URL, MIME type, alt text, caption, description, dimensions, file size (read from disk), and the post it is attached to (if any). Also reports usage signal: in_use_as_featured_media counts how many posts use this as their _thumbnail_id.', |
| 284 | 'category' => 'atarim', |
| 285 | 'input_schema' => [ |
| 286 | 'type' => 'object', |
| 287 | 'properties' => [ |
| 288 | 'id' => [ |
| 289 | 'type' => 'integer', |
| 290 | 'description' => 'Attachment ID.', |
| 291 | 'minimum' => 1, |
| 292 | ], |
| 293 | ], |
| 294 | 'required' => [ 'id' ], |
| 295 | 'additionalProperties' => false, |
| 296 | ], |
| 297 | 'output_schema' => [ |
| 298 | 'type' => 'object', |
| 299 | 'properties' => [ |
| 300 | 'success' => [ 'type' => 'boolean' ], |
| 301 | 'id' => [ 'type' => 'integer' ], |
| 302 | 'title' => [ 'type' => 'string' ], |
| 303 | 'slug' => [ 'type' => 'string' ], |
| 304 | 'mime_type' => [ 'type' => 'string' ], |
| 305 | 'url' => [ 'type' => 'string' ], |
| 306 | 'file_path' => [ 'type' => 'string' ], |
| 307 | 'alt_text' => [ 'type' => 'string' ], |
| 308 | 'caption' => [ 'type' => 'string' ], |
| 309 | 'description' => [ 'type' => 'string' ], |
| 310 | 'attached_to' => [ 'type' => 'integer' ], |
| 311 | 'author' => [ 'type' => 'integer' ], |
| 312 | 'date' => [ 'type' => 'string' ], |
| 313 | 'modified' => [ 'type' => 'string' ], |
| 314 | 'width' => [ 'type' => 'integer' ], |
| 315 | 'height' => [ 'type' => 'integer' ], |
| 316 | 'file_size' => [ 'type' => [ 'integer', 'null' ] ], |
| 317 | 'file_missing' => [ 'type' => 'boolean' ], |
| 318 | 'in_use_as_featured_media' => [ 'type' => 'integer' ], |
| 319 | 'sizes' => [ 'type' => 'object' ], |
| 320 | 'message' => [ 'type' => 'string' ], |
| 321 | ], |
| 322 | 'required' => [ 'success', 'message' ], |
| 323 | ], |
| 324 | 'execute_callback' => function( $input = [] ) { |
| 325 | $id = isset( $input['id'] ) ? (int) $input['id'] : 0; |
| 326 | if ( $id <= 0 ) { |
| 327 | return [ 'success' => false, 'message' => 'id is required and must be a positive integer.' ]; |
| 328 | } |
| 329 | |
| 330 | $att = get_post( $id ); |
| 331 | if ( ! $att || $att->post_type !== 'attachment' ) { |
| 332 | return [ 'success' => false, 'message' => sprintf( 'Attachment %d not found.', $id ) ]; |
| 333 | } |
| 334 | |
| 335 | $alt = (string) get_post_meta( $id, '_wp_attachment_image_alt', true ); |
| 336 | $meta = wp_get_attachment_metadata( $id ); |
| 337 | $width = isset( $meta['width'] ) ? (int) $meta['width'] : 0; |
| 338 | $height = isset( $meta['height'] ) ? (int) $meta['height'] : 0; |
| 339 | $url = (string) wp_get_attachment_url( $id ); |
| 340 | $path = (string) get_attached_file( $id ); |
| 341 | |
| 342 | $file_size = null; |
| 343 | $file_missing = true; |
| 344 | if ( $path && file_exists( $path ) ) { |
| 345 | $file_size = (int) filesize( $path ); |
| 346 | $file_missing = false; |
| 347 | } |
| 348 | |
| 349 | // Featured-image usage count via _thumbnail_id meta lookup. |
| 350 | global $wpdb; |
| 351 | $featured_uses = (int) $wpdb->get_var( $wpdb->prepare( |
| 352 | "SELECT COUNT(*) FROM {$wpdb->postmeta} WHERE meta_key = '_thumbnail_id' AND meta_value = %s", |
| 353 | (string) $id |
| 354 | ) ); |
| 355 | |
| 356 | // Intermediate sizes (thumbnail, medium, large, etc.). |
| 357 | $sizes = []; |
| 358 | if ( isset( $meta['sizes'] ) && is_array( $meta['sizes'] ) ) { |
| 359 | foreach ( $meta['sizes'] as $size_name => $size_meta ) { |
| 360 | $sizes[ $size_name ] = [ |
| 361 | 'width' => isset( $size_meta['width'] ) ? (int) $size_meta['width'] : 0, |
| 362 | 'height' => isset( $size_meta['height'] ) ? (int) $size_meta['height'] : 0, |
| 363 | 'file' => isset( $size_meta['file'] ) ? (string) $size_meta['file'] : '', |
| 364 | 'mime_type' => isset( $size_meta['mime-type'] ) ? (string) $size_meta['mime-type'] : '', |
| 365 | ]; |
| 366 | } |
| 367 | } |
| 368 | |
| 369 | return [ |
| 370 | 'success' => true, |
| 371 | 'id' => $id, |
| 372 | 'title' => (string) $att->post_title, |
| 373 | 'slug' => (string) $att->post_name, |
| 374 | 'mime_type' => (string) $att->post_mime_type, |
| 375 | 'url' => $url, |
| 376 | 'file_path' => $path, |
| 377 | 'alt_text' => $alt, |
| 378 | 'caption' => (string) $att->post_excerpt, |
| 379 | 'description' => (string) $att->post_content, |
| 380 | 'attached_to' => (int) $att->post_parent, |
| 381 | 'author' => (int) $att->post_author, |
| 382 | 'date' => (string) $att->post_date_gmt, |
| 383 | 'modified' => (string) $att->post_modified_gmt, |
| 384 | 'width' => $width, |
| 385 | 'height' => $height, |
| 386 | 'file_size' => $file_size, |
| 387 | 'file_missing' => $file_missing, |
| 388 | 'in_use_as_featured_media' => $featured_uses, |
| 389 | 'sizes' => $sizes, |
| 390 | 'message' => 'OK.', |
| 391 | ]; |
| 392 | }, |
| 393 | 'permission_callback' => function() { |
| 394 | return current_user_can( 'upload_files' ); |
| 395 | }, |
| 396 | 'meta' => [ |
| 397 | 'mcp' => [ 'public' => true, 'type' => 'tool' ], |
| 398 | 'annotations' => [ 'readonly' => true, 'destructive' => false, 'idempotent' => true ], |
| 399 | ], |
| 400 | ] ); |
| 401 | |
| 402 | // ---- update-media ---- |
| 403 | wp_register_ability( 'atarim/update-media', [ |
| 404 | 'label' => 'Update Media', |
| 405 | 'description' => 'Updates fields on a single attachment. Only id is required; pass any subset of alt_text, title, caption, description. Omitted fields are left unchanged. Pass an empty string to clear a field. Alt text is stored in _wp_attachment_image_alt meta; title/caption/description are post fields.', |
| 406 | 'category' => 'atarim', |
| 407 | 'input_schema' => [ |
| 408 | 'type' => 'object', |
| 409 | 'properties' => [ |
| 410 | 'id' => [ |
| 411 | 'type' => 'integer', |
| 412 | 'description' => 'Attachment ID.', |
| 413 | 'minimum' => 1, |
| 414 | ], |
| 415 | 'alt_text' => [ |
| 416 | 'type' => 'string', |
| 417 | 'description' => 'Alt text for accessibility. Empty string clears it.', |
| 418 | ], |
| 419 | 'title' => [ |
| 420 | 'type' => 'string', |
| 421 | 'description' => 'Attachment title.', |
| 422 | ], |
| 423 | 'caption' => [ |
| 424 | 'type' => 'string', |
| 425 | 'description' => 'Caption (stored as post_excerpt). Empty string clears it.', |
| 426 | ], |
| 427 | 'description' => [ |
| 428 | 'type' => 'string', |
| 429 | 'description' => 'Description (stored as post_content). Empty string clears it.', |
| 430 | ], |
| 431 | ], |
| 432 | 'required' => [ 'id' ], |
| 433 | 'additionalProperties' => false, |
| 434 | ], |
| 435 | 'output_schema' => [ |
| 436 | 'type' => 'object', |
| 437 | 'properties' => [ |
| 438 | 'success' => [ 'type' => 'boolean' ], |
| 439 | 'id' => [ 'type' => 'integer' ], |
| 440 | 'updated' => [ 'type' => 'array', 'items' => [ 'type' => 'string' ] ], |
| 441 | 'message' => [ 'type' => 'string' ], |
| 442 | ], |
| 443 | 'required' => [ 'success', 'message' ], |
| 444 | ], |
| 445 | 'execute_callback' => function( $input = [] ) { |
| 446 | $id = isset( $input['id'] ) ? (int) $input['id'] : 0; |
| 447 | if ( $id <= 0 ) { |
| 448 | return [ 'success' => false, 'message' => 'id is required and must be a positive integer.' ]; |
| 449 | } |
| 450 | |
| 451 | $att = get_post( $id ); |
| 452 | if ( ! $att || $att->post_type !== 'attachment' ) { |
| 453 | return [ 'success' => false, 'id' => $id, 'message' => sprintf( 'Attachment %d not found.', $id ) ]; |
| 454 | } |
| 455 | |
| 456 | $updated = []; |
| 457 | $post_arr = [ 'ID' => $id ]; |
| 458 | |
| 459 | if ( array_key_exists( 'alt_text', $input ) ) { |
| 460 | update_post_meta( $id, '_wp_attachment_image_alt', sanitize_text_field( (string) $input['alt_text'] ) ); |
| 461 | $updated[] = 'alt_text'; |
| 462 | } |
| 463 | if ( array_key_exists( 'title', $input ) ) { |
| 464 | $post_arr['post_title'] = sanitize_text_field( (string) $input['title'] ); |
| 465 | $updated[] = 'title'; |
| 466 | } |
| 467 | if ( array_key_exists( 'caption', $input ) ) { |
| 468 | $post_arr['post_excerpt'] = sanitize_textarea_field( (string) $input['caption'] ); |
| 469 | $updated[] = 'caption'; |
| 470 | } |
| 471 | if ( array_key_exists( 'description', $input ) ) { |
| 472 | $post_arr['post_content'] = wp_kses_post( (string) $input['description'] ); |
| 473 | $updated[] = 'description'; |
| 474 | } |
| 475 | |
| 476 | if ( empty( $updated ) ) { |
| 477 | return [ 'success' => false, 'id' => $id, 'message' => 'No fields provided to update.' ]; |
| 478 | } |
| 479 | |
| 480 | if ( count( $post_arr ) > 1 ) { |
| 481 | $res = wp_update_post( $post_arr, true ); |
| 482 | if ( is_wp_error( $res ) ) { |
| 483 | return [ 'success' => false, 'id' => $id, 'message' => 'Update failed: ' . $res->get_error_message() ]; |
| 484 | } |
| 485 | } |
| 486 | |
| 487 | return [ |
| 488 | 'success' => true, |
| 489 | 'id' => $id, |
| 490 | 'updated' => $updated, |
| 491 | 'message' => sprintf( 'Updated: %s.', implode( ', ', $updated ) ), |
| 492 | ]; |
| 493 | }, |
| 494 | 'permission_callback' => function() { |
| 495 | return current_user_can( 'upload_files' ); |
| 496 | }, |
| 497 | 'meta' => [ |
| 498 | 'mcp' => [ 'public' => true, 'type' => 'tool' ], |
| 499 | 'annotations' => [ 'readonly' => false, 'destructive' => false, 'idempotent' => false ], |
| 500 | ], |
| 501 | ] ); |
| 502 | |
| 503 | // ---- bulk-update-alt-text ---- |
| 504 | wp_register_ability( 'atarim/bulk-update-alt-text', [ |
| 505 | 'label' => 'Bulk Update Alt Text', |
| 506 | 'description' => 'Updates alt text on many attachments in a single call. Accepts an array of {id, alt_text} tuples — each tuple updates one attachment. Per-id success tracking so partial failures (missing attachments, permission issues) don\'t mask the rest. Max 500 items per call. Use list-media with missing_alt: true to find candidates that need alt text.', |
| 507 | 'category' => 'atarim', |
| 508 | 'input_schema' => [ |
| 509 | 'type' => 'object', |
| 510 | 'properties' => [ |
| 511 | 'items' => [ |
| 512 | 'type' => 'array', |
| 513 | 'description' => 'Array of {id, alt_text} objects. Each updates one attachment.', |
| 514 | 'items' => [ |
| 515 | 'type' => 'object', |
| 516 | 'properties' => [ |
| 517 | 'id' => [ 'type' => 'integer', 'minimum' => 1 ], |
| 518 | 'alt_text' => [ 'type' => 'string' ], |
| 519 | ], |
| 520 | 'required' => [ 'id', 'alt_text' ], |
| 521 | 'additionalProperties' => false, |
| 522 | ], |
| 523 | 'minItems' => 1, |
| 524 | 'maxItems' => 500, |
| 525 | ], |
| 526 | ], |
| 527 | 'required' => [ 'items' ], |
| 528 | 'additionalProperties' => false, |
| 529 | ], |
| 530 | 'output_schema' => [ |
| 531 | 'type' => 'object', |
| 532 | 'properties' => [ |
| 533 | 'success' => [ 'type' => 'boolean' ], |
| 534 | 'attempted' => [ 'type' => 'integer' ], |
| 535 | 'updated' => [ 'type' => 'integer' ], |
| 536 | 'failed' => [ 'type' => 'integer' ], |
| 537 | 'results' => [ |
| 538 | 'type' => 'array', |
| 539 | 'items' => [ |
| 540 | 'type' => 'object', |
| 541 | 'properties' => [ |
| 542 | 'id' => [ 'type' => 'integer' ], |
| 543 | 'success' => [ 'type' => 'boolean' ], |
| 544 | 'message' => [ 'type' => 'string' ], |
| 545 | ], |
| 546 | ], |
| 547 | ], |
| 548 | 'message' => [ 'type' => 'string' ], |
| 549 | ], |
| 550 | 'required' => [ 'success', 'attempted', 'updated', 'failed', 'results', 'message' ], |
| 551 | ], |
| 552 | 'execute_callback' => function( $input = [] ) { |
| 553 | $items = isset( $input['items'] ) && is_array( $input['items'] ) ? $input['items'] : []; |
| 554 | if ( empty( $items ) ) { |
| 555 | return [ |
| 556 | 'success' => false, |
| 557 | 'attempted' => 0, |
| 558 | 'updated' => 0, |
| 559 | 'failed' => 0, |
| 560 | 'results' => [], |
| 561 | 'message' => 'items is required and must be a non-empty array.', |
| 562 | ]; |
| 563 | } |
| 564 | |
| 565 | $results = []; |
| 566 | $updated = 0; |
| 567 | $failed = 0; |
| 568 | |
| 569 | foreach ( $items as $row ) { |
| 570 | if ( ! is_array( $row ) || ! isset( $row['id'] ) || ! array_key_exists( 'alt_text', $row ) ) { |
| 571 | $results[] = [ 'id' => 0, 'success' => false, 'message' => 'Invalid row — id and alt_text are required.' ]; |
| 572 | $failed++; |
| 573 | continue; |
| 574 | } |
| 575 | $id = (int) $row['id']; |
| 576 | if ( $id <= 0 ) { |
| 577 | $results[] = [ 'id' => $id, 'success' => false, 'message' => 'Invalid id.' ]; |
| 578 | $failed++; |
| 579 | continue; |
| 580 | } |
| 581 | $att = get_post( $id ); |
| 582 | if ( ! $att || $att->post_type !== 'attachment' ) { |
| 583 | $results[] = [ 'id' => $id, 'success' => false, 'message' => 'Attachment not found.' ]; |
| 584 | $failed++; |
| 585 | continue; |
| 586 | } |
| 587 | if ( ! current_user_can( 'edit_post', $id ) ) { |
| 588 | $results[] = [ 'id' => $id, 'success' => false, 'message' => 'Permission denied.' ]; |
| 589 | $failed++; |
| 590 | continue; |
| 591 | } |
| 592 | |
| 593 | $alt = sanitize_text_field( (string) $row['alt_text'] ); |
| 594 | update_post_meta( $id, '_wp_attachment_image_alt', $alt ); |
| 595 | |
| 596 | $results[] = [ 'id' => $id, 'success' => true, 'message' => 'OK.' ]; |
| 597 | $updated++; |
| 598 | } |
| 599 | |
| 600 | $attempted = count( $items ); |
| 601 | |
| 602 | return [ |
| 603 | 'success' => ( $failed === 0 ), |
| 604 | 'attempted' => $attempted, |
| 605 | 'updated' => $updated, |
| 606 | 'failed' => $failed, |
| 607 | 'results' => $results, |
| 608 | 'message' => sprintf( '%d of %d updated, %d failed.', $updated, $attempted, $failed ), |
| 609 | ]; |
| 610 | }, |
| 611 | 'permission_callback' => function() { |
| 612 | return current_user_can( 'upload_files' ); |
| 613 | }, |
| 614 | 'meta' => [ |
| 615 | 'mcp' => [ 'public' => true, 'type' => 'tool' ], |
| 616 | 'annotations' => [ 'readonly' => false, 'destructive' => false, 'idempotent' => true ], |
| 617 | ], |
| 618 | ] ); |
| 619 | |
| 620 | // ---- delete-media ---- |
| 621 | wp_register_ability( 'atarim/delete-media', [ |
| 622 | 'label' => 'Delete Media', |
| 623 | 'description' => 'Deletes a single attachment from the library and removes the underlying file(s) from disk. By default refuses if the attachment is referenced as a featured image on any post — pass confirm_in_use: true to delete anyway (the affected posts lose their featured image). Important limitation: in-use detection ONLY checks featured-image references. Attachments embedded directly in post content via URL, used by page builders, or referenced from custom meta are NOT detected as in-use. The AI / caller should treat confirm_in_use: true as "I have audited usage independently".', |
| 624 | 'category' => 'atarim', |
| 625 | 'input_schema' => [ |
| 626 | 'type' => 'object', |
| 627 | 'properties' => [ |
| 628 | 'id' => [ |
| 629 | 'type' => 'integer', |
| 630 | 'description' => 'Attachment ID.', |
| 631 | 'minimum' => 1, |
| 632 | ], |
| 633 | 'confirm_in_use' => [ |
| 634 | 'type' => 'boolean', |
| 635 | 'description' => 'Required to delete an attachment that is used as a featured image on at least one post.', |
| 636 | 'default' => false, |
| 637 | ], |
| 638 | ], |
| 639 | 'required' => [ 'id' ], |
| 640 | 'additionalProperties' => false, |
| 641 | ], |
| 642 | 'output_schema' => [ |
| 643 | 'type' => 'object', |
| 644 | 'properties' => [ |
| 645 | 'success' => [ 'type' => 'boolean' ], |
| 646 | 'id' => [ 'type' => 'integer' ], |
| 647 | 'in_use_as_featured_media' => [ 'type' => 'integer' ], |
| 648 | 'message' => [ 'type' => 'string' ], |
| 649 | ], |
| 650 | 'required' => [ 'success', 'message' ], |
| 651 | ], |
| 652 | 'execute_callback' => function( $input = [] ) { |
| 653 | $id = isset( $input['id'] ) ? (int) $input['id'] : 0; |
| 654 | if ( $id <= 0 ) { |
| 655 | return [ 'success' => false, 'message' => 'id is required and must be a positive integer.' ]; |
| 656 | } |
| 657 | $confirm = ! empty( $input['confirm_in_use'] ); |
| 658 | |
| 659 | $att = get_post( $id ); |
| 660 | if ( ! $att || $att->post_type !== 'attachment' ) { |
| 661 | return [ 'success' => false, 'id' => $id, 'message' => sprintf( 'Attachment %d not found.', $id ) ]; |
| 662 | } |
| 663 | if ( ! current_user_can( 'delete_post', $id ) ) { |
| 664 | return [ 'success' => false, 'id' => $id, 'message' => 'Permission denied.' ]; |
| 665 | } |
| 666 | |
| 667 | global $wpdb; |
| 668 | $featured_uses = (int) $wpdb->get_var( $wpdb->prepare( |
| 669 | "SELECT COUNT(*) FROM {$wpdb->postmeta} WHERE meta_key = '_thumbnail_id' AND meta_value = %s", |
| 670 | (string) $id |
| 671 | ) ); |
| 672 | |
| 673 | if ( $featured_uses > 0 && ! $confirm ) { |
| 674 | return [ |
| 675 | 'success' => false, |
| 676 | 'id' => $id, |
| 677 | 'in_use_as_featured_media' => $featured_uses, |
| 678 | 'message' => sprintf( |
| 679 | 'Attachment %d is the featured image on %d post(s). Pass confirm_in_use: true to delete anyway (those posts will lose their featured image). NOTE: in-use detection does NOT scan post content or custom meta — verify usage independently before confirming.', |
| 680 | $id, |
| 681 | $featured_uses |
| 682 | ), |
| 683 | ]; |
| 684 | } |
| 685 | |
| 686 | $result = wp_delete_attachment( $id, true ); |
| 687 | if ( $result === false || $result === null ) { |
| 688 | return [ 'success' => false, 'id' => $id, 'in_use_as_featured_media' => $featured_uses, 'message' => 'Delete failed: WordPress reported the operation did not complete.' ]; |
| 689 | } |
| 690 | |
| 691 | return [ |
| 692 | 'success' => true, |
| 693 | 'id' => $id, |
| 694 | 'in_use_as_featured_media' => $featured_uses, |
| 695 | 'message' => $featured_uses > 0 |
| 696 | ? sprintf( 'Attachment deleted; %d post(s) lost their featured image.', $featured_uses ) |
| 697 | : 'Attachment deleted.', |
| 698 | ]; |
| 699 | }, |
| 700 | 'permission_callback' => function() { |
| 701 | return current_user_can( 'upload_files' ); |
| 702 | }, |
| 703 | 'meta' => [ |
| 704 | 'mcp' => [ 'public' => true, 'type' => 'tool' ], |
| 705 | 'annotations' => [ 'readonly' => false, 'destructive' => true, 'idempotent' => false ], |
| 706 | ], |
| 707 | ] ); |
| 708 | |
| 709 | // ---- bulk-delete-media ---- |
| 710 | wp_register_ability( 'atarim/bulk-delete-media', [ |
| 711 | 'label' => 'Bulk Delete Media', |
| 712 | 'description' => 'Deletes many attachments in a single call. DRY-RUN BY DEFAULT — call with dry_run: false to actually delete. In dry-run mode returns the list of attachments that WOULD be deleted (and which are in use). Same featured-image safety guard as delete-media: attachments used as featured images are skipped unless confirm_in_use: true. Same caveat: in-use detection only checks featured-image references, not post content / meta / page builders.', |
| 713 | 'category' => 'atarim', |
| 714 | 'input_schema' => [ |
| 715 | 'type' => 'object', |
| 716 | 'properties' => [ |
| 717 | 'ids' => [ |
| 718 | 'type' => 'array', |
| 719 | 'description' => 'Attachment IDs to delete.', |
| 720 | 'items' => [ 'type' => 'integer', 'minimum' => 1 ], |
| 721 | 'minItems' => 1, |
| 722 | 'maxItems' => 500, |
| 723 | ], |
| 724 | 'dry_run' => [ |
| 725 | 'type' => 'boolean', |
| 726 | 'description' => 'When true (default), reports what WOULD be deleted without actually deleting. Pass false to actually delete.', |
| 727 | 'default' => true, |
| 728 | ], |
| 729 | 'confirm_in_use' => [ |
| 730 | 'type' => 'boolean', |
| 731 | 'description' => 'When true, attachments that are featured images on existing posts are deleted anyway. Default false — those are skipped with a per-id message.', |
| 732 | 'default' => false, |
| 733 | ], |
| 734 | ], |
| 735 | 'required' => [ 'ids' ], |
| 736 | 'additionalProperties' => false, |
| 737 | ], |
| 738 | 'output_schema' => [ |
| 739 | 'type' => 'object', |
| 740 | 'properties' => [ |
| 741 | 'success' => [ 'type' => 'boolean' ], |
| 742 | 'dry_run' => [ 'type' => 'boolean' ], |
| 743 | 'attempted' => [ 'type' => 'integer' ], |
| 744 | 'deleted' => [ 'type' => 'integer' ], |
| 745 | 'skipped' => [ 'type' => 'integer' ], |
| 746 | 'failed' => [ 'type' => 'integer' ], |
| 747 | 'results' => [ |
| 748 | 'type' => 'array', |
| 749 | 'items' => [ |
| 750 | 'type' => 'object', |
| 751 | 'properties' => [ |
| 752 | 'id' => [ 'type' => 'integer' ], |
| 753 | 'action' => [ 'type' => 'string' ], |
| 754 | 'in_use_as_featured_media' => [ 'type' => 'integer' ], |
| 755 | 'message' => [ 'type' => 'string' ], |
| 756 | ], |
| 757 | ], |
| 758 | ], |
| 759 | 'message' => [ 'type' => 'string' ], |
| 760 | ], |
| 761 | 'required' => [ 'success', 'dry_run', 'attempted', 'deleted', 'skipped', 'failed', 'results', 'message' ], |
| 762 | ], |
| 763 | 'execute_callback' => function( $input = [] ) { |
| 764 | $ids = isset( $input['ids'] ) && is_array( $input['ids'] ) ? array_values( array_unique( array_map( 'intval', $input['ids'] ) ) ) : []; |
| 765 | $dry_run = ! isset( $input['dry_run'] ) ? true : (bool) $input['dry_run']; |
| 766 | $confirm = ! empty( $input['confirm_in_use'] ); |
| 767 | |
| 768 | if ( empty( $ids ) ) { |
| 769 | return [ |
| 770 | 'success' => false, |
| 771 | 'dry_run' => $dry_run, |
| 772 | 'attempted' => 0, |
| 773 | 'deleted' => 0, |
| 774 | 'skipped' => 0, |
| 775 | 'failed' => 0, |
| 776 | 'results' => [], |
| 777 | 'message' => 'ids is required and must be a non-empty array.', |
| 778 | ]; |
| 779 | } |
| 780 | |
| 781 | global $wpdb; |
| 782 | $results = []; |
| 783 | $deleted = 0; |
| 784 | $skipped = 0; |
| 785 | $failed = 0; |
| 786 | |
| 787 | foreach ( $ids as $id ) { |
| 788 | if ( $id <= 0 ) { |
| 789 | $results[] = [ 'id' => $id, 'action' => 'failed', 'in_use_as_featured_media' => 0, 'message' => 'Invalid id.' ]; |
| 790 | $failed++; |
| 791 | continue; |
| 792 | } |
| 793 | $att = get_post( $id ); |
| 794 | if ( ! $att || $att->post_type !== 'attachment' ) { |
| 795 | $results[] = [ 'id' => $id, 'action' => 'failed', 'in_use_as_featured_media' => 0, 'message' => 'Attachment not found.' ]; |
| 796 | $failed++; |
| 797 | continue; |
| 798 | } |
| 799 | if ( ! current_user_can( 'delete_post', $id ) ) { |
| 800 | $results[] = [ 'id' => $id, 'action' => 'failed', 'in_use_as_featured_media' => 0, 'message' => 'Permission denied.' ]; |
| 801 | $failed++; |
| 802 | continue; |
| 803 | } |
| 804 | |
| 805 | $featured_uses = (int) $wpdb->get_var( $wpdb->prepare( |
| 806 | "SELECT COUNT(*) FROM {$wpdb->postmeta} WHERE meta_key = '_thumbnail_id' AND meta_value = %s", |
| 807 | (string) $id |
| 808 | ) ); |
| 809 | |
| 810 | if ( $featured_uses > 0 && ! $confirm ) { |
| 811 | $results[] = [ |
| 812 | 'id' => $id, |
| 813 | 'action' => 'skipped', |
| 814 | 'in_use_as_featured_media' => $featured_uses, |
| 815 | 'message' => sprintf( 'Used as featured image on %d post(s); pass confirm_in_use to delete.', $featured_uses ), |
| 816 | ]; |
| 817 | $skipped++; |
| 818 | continue; |
| 819 | } |
| 820 | |
| 821 | if ( $dry_run ) { |
| 822 | $results[] = [ |
| 823 | 'id' => $id, |
| 824 | 'action' => 'would_delete', |
| 825 | 'in_use_as_featured_media' => $featured_uses, |
| 826 | 'message' => $featured_uses > 0 |
| 827 | ? sprintf( 'Would delete; %d post(s) would lose their featured image.', $featured_uses ) |
| 828 | : 'Would delete.', |
| 829 | ]; |
| 830 | $deleted++; |
| 831 | continue; |
| 832 | } |
| 833 | |
| 834 | $res = wp_delete_attachment( $id, true ); |
| 835 | if ( $res === false || $res === null ) { |
| 836 | $results[] = [ 'id' => $id, 'action' => 'failed', 'in_use_as_featured_media' => $featured_uses, 'message' => 'Delete failed.' ]; |
| 837 | $failed++; |
| 838 | continue; |
| 839 | } |
| 840 | |
| 841 | $results[] = [ |
| 842 | 'id' => $id, |
| 843 | 'action' => 'deleted', |
| 844 | 'in_use_as_featured_media' => $featured_uses, |
| 845 | 'message' => $featured_uses > 0 |
| 846 | ? sprintf( 'Deleted; %d post(s) lost their featured image.', $featured_uses ) |
| 847 | : 'Deleted.', |
| 848 | ]; |
| 849 | $deleted++; |
| 850 | } |
| 851 | |
| 852 | $attempted = count( $ids ); |
| 853 | |
| 854 | return [ |
| 855 | 'success' => ( $failed === 0 ), |
| 856 | 'dry_run' => $dry_run, |
| 857 | 'attempted' => $attempted, |
| 858 | 'deleted' => $deleted, |
| 859 | 'skipped' => $skipped, |
| 860 | 'failed' => $failed, |
| 861 | 'results' => $results, |
| 862 | 'message' => $dry_run |
| 863 | ? sprintf( 'DRY RUN: %d would be deleted, %d skipped (in use), %d failed. Pass dry_run: false to actually delete.', $deleted, $skipped, $failed ) |
| 864 | : sprintf( '%d deleted, %d skipped (in use), %d failed.', $deleted, $skipped, $failed ), |
| 865 | ]; |
| 866 | }, |
| 867 | 'permission_callback' => function() { |
| 868 | return current_user_can( 'upload_files' ); |
| 869 | }, |
| 870 | 'meta' => [ |
| 871 | 'mcp' => [ 'public' => true, 'type' => 'tool' ], |
| 872 | 'annotations' => [ 'readonly' => false, 'destructive' => true, 'idempotent' => false ], |
| 873 | ], |
| 874 | ] ); |
| 875 | |
| 876 | // ---- upload-media ---- |
| 877 | wp_register_ability( 'atarim/upload-media', [ |
| 878 | 'label' => 'Upload Media', |
| 879 | 'description' => 'Adds a new attachment to the WordPress media library. Source can be either a URL (the server fetches it; SSRF protections apply — private IPs, AWS metadata, and non-http(s) schemes are blocked) or base64-encoded file data. The file goes through WordPress\'s standard upload pipeline including MIME validation against the current user\'s allowed list, virus-scan filters that other plugins may register, and intermediate-size generation for images. Returns the new attachment ID. Optional post_id to attach to a specific post; optional alt_text to set on upload (saves a round-trip).', |
| 880 | 'category' => 'atarim', |
| 881 | 'input_schema' => [ |
| 882 | 'type' => 'object', |
| 883 | 'properties' => [ |
| 884 | 'source' => [ |
| 885 | 'type' => 'string', |
| 886 | 'description' => 'How to source the file. "url": fetch from the source_url field (http/https only, SSRF-protected). "base64": decode the source_data field.', |
| 887 | 'enum' => [ 'url', 'base64' ], |
| 888 | ], |
| 889 | 'source_url' => [ |
| 890 | 'type' => 'string', |
| 891 | 'description' => 'When source is "url": the http or https URL to download from. Required for url source. Private IPs and cloud metadata endpoints are blocked.', |
| 892 | ], |
| 893 | 'source_data' => [ |
| 894 | 'type' => 'string', |
| 895 | 'description' => 'When source is "base64": base64-encoded file contents (the data itself, NOT a data URL prefix like "data:image/jpeg;base64,..."). Required for base64 source.', |
| 896 | ], |
| 897 | 'filename' => [ |
| 898 | 'type' => 'string', |
| 899 | 'description' => 'Filename to store the upload as (including extension). For url source, defaults to the basename of the URL if omitted. For base64 source, this is required.', |
| 900 | ], |
| 901 | 'post_id' => [ |
| 902 | 'type' => 'integer', |
| 903 | 'description' => 'Attach the new media to this post ID. Defaults to 0 (unattached).', |
| 904 | 'minimum' => 0, |
| 905 | 'default' => 0, |
| 906 | ], |
| 907 | 'alt_text' => [ |
| 908 | 'type' => 'string', |
| 909 | 'description' => 'Alt text to set on the new attachment after upload. Optional — saves a follow-up update-media call.', |
| 910 | ], |
| 911 | 'title' => [ |
| 912 | 'type' => 'string', |
| 913 | 'description' => 'Attachment title. Defaults to the filename minus extension.', |
| 914 | ], |
| 915 | 'caption' => [ |
| 916 | 'type' => 'string', |
| 917 | 'description' => 'Caption (stored as post_excerpt).', |
| 918 | ], |
| 919 | 'description' => [ |
| 920 | 'type' => 'string', |
| 921 | 'description' => 'Long description (stored as post_content).', |
| 922 | ], |
| 923 | ], |
| 924 | 'required' => [ 'source' ], |
| 925 | 'additionalProperties' => false, |
| 926 | ], |
| 927 | 'output_schema' => [ |
| 928 | 'type' => 'object', |
| 929 | 'properties' => [ |
| 930 | 'success' => [ 'type' => 'boolean' ], |
| 931 | 'id' => [ 'type' => 'integer' ], |
| 932 | 'url' => [ 'type' => 'string' ], |
| 933 | 'filename' => [ 'type' => 'string' ], |
| 934 | 'mime_type' => [ 'type' => 'string' ], |
| 935 | 'file_size' => [ 'type' => 'integer' ], |
| 936 | 'width' => [ 'type' => 'integer' ], |
| 937 | 'height' => [ 'type' => 'integer' ], |
| 938 | 'message' => [ 'type' => 'string' ], |
| 939 | ], |
| 940 | 'required' => [ 'success', 'message' ], |
| 941 | ], |
| 942 | 'execute_callback' => function( $input = [] ) { |
| 943 | $source = isset( $input['source'] ) ? sanitize_key( $input['source'] ) : ''; |
| 944 | if ( ! in_array( $source, [ 'url', 'base64' ], true ) ) { |
| 945 | return [ 'success' => false, 'message' => 'source must be "url" or "base64".' ]; |
| 946 | } |
| 947 | |
| 948 | // Fetch / decode the bytes via the shared helper. |
| 949 | $fetched = $this->avcf_fetch_media_source( $source, $input ); |
| 950 | if ( isset( $fetched['error'] ) ) { |
| 951 | return [ 'success' => false, 'message' => $fetched['error'] ]; |
| 952 | } |
| 953 | |
| 954 | $tmp_file = $fetched['tmp_file']; |
| 955 | $filename = $fetched['filename']; |
| 956 | $mime_detected = $fetched['mime']; |
| 957 | $file_size = $fetched['size']; |
| 958 | |
| 959 | // MIME must be in WP's allowed list for the current user. |
| 960 | $allowed = get_allowed_mime_types(); |
| 961 | if ( ! in_array( $mime_detected, $allowed, true ) ) { |
| 962 | @unlink( $tmp_file ); |
| 963 | return [ |
| 964 | 'success' => false, |
| 965 | 'message' => sprintf( 'MIME type "%s" is not allowed on this site for your user role.', $mime_detected ), |
| 966 | ]; |
| 967 | } |
| 968 | |
| 969 | // Size limit. |
| 970 | $max = wp_max_upload_size(); |
| 971 | if ( $max > 0 && $file_size > $max ) { |
| 972 | @unlink( $tmp_file ); |
| 973 | return [ |
| 974 | 'success' => false, |
| 975 | 'message' => sprintf( 'File size %d bytes exceeds the upload limit of %d bytes.', $file_size, $max ), |
| 976 | ]; |
| 977 | } |
| 978 | |
| 979 | // Move into the uploads dir via WP's sideload pipeline. |
| 980 | if ( ! function_exists( 'wp_handle_sideload' ) ) { |
| 981 | require_once ABSPATH . 'wp-admin/includes/file.php'; |
| 982 | } |
| 983 | if ( ! function_exists( 'wp_generate_attachment_metadata' ) ) { |
| 984 | require_once ABSPATH . 'wp-admin/includes/image.php'; |
| 985 | } |
| 986 | if ( ! function_exists( 'wp_read_image_metadata' ) ) { |
| 987 | require_once ABSPATH . 'wp-admin/includes/media.php'; |
| 988 | } |
| 989 | |
| 990 | $file_array = [ |
| 991 | 'name' => $filename, |
| 992 | 'tmp_name' => $tmp_file, |
| 993 | 'size' => $file_size, |
| 994 | ]; |
| 995 | |
| 996 | $overrides = [ 'test_form' => false, 'test_size' => true ]; |
| 997 | $sideload = wp_handle_sideload( $file_array, $overrides ); |
| 998 | |
| 999 | if ( ! empty( $sideload['error'] ) ) { |
| 1000 | @unlink( $tmp_file ); |
| 1001 | return [ 'success' => false, 'message' => 'Upload failed: ' . $sideload['error'] ]; |
| 1002 | } |
| 1003 | |
| 1004 | // Insert the attachment record. |
| 1005 | $post_id_parent = isset( $input['post_id'] ) ? (int) $input['post_id'] : 0; |
| 1006 | if ( $post_id_parent > 0 && ! get_post( $post_id_parent ) ) { |
| 1007 | @unlink( $sideload['file'] ); |
| 1008 | return [ 'success' => false, 'message' => sprintf( 'post_id %d does not exist.', $post_id_parent ) ]; |
| 1009 | } |
| 1010 | |
| 1011 | $title = isset( $input['title'] ) |
| 1012 | ? sanitize_text_field( (string) $input['title'] ) |
| 1013 | : preg_replace( '/\\.[^.]+$/', '', $filename ); |
| 1014 | |
| 1015 | $attachment = [ |
| 1016 | 'post_mime_type' => $sideload['type'], |
| 1017 | 'post_title' => $title, |
| 1018 | 'post_status' => 'inherit', |
| 1019 | 'post_parent' => $post_id_parent, |
| 1020 | 'post_content' => isset( $input['description'] ) ? wp_kses_post( (string) $input['description'] ) : '', |
| 1021 | 'post_excerpt' => isset( $input['caption'] ) ? sanitize_textarea_field( (string) $input['caption'] ) : '', |
| 1022 | ]; |
| 1023 | |
| 1024 | $attach_id = wp_insert_attachment( $attachment, $sideload['file'], $post_id_parent, true ); |
| 1025 | if ( is_wp_error( $attach_id ) ) { |
| 1026 | @unlink( $sideload['file'] ); |
| 1027 | return [ 'success' => false, 'message' => 'Attachment insert failed: ' . $attach_id->get_error_message() ]; |
| 1028 | } |
| 1029 | |
| 1030 | // Generate intermediate sizes for images. |
| 1031 | $metadata = wp_generate_attachment_metadata( $attach_id, $sideload['file'] ); |
| 1032 | wp_update_attachment_metadata( $attach_id, $metadata ); |
| 1033 | |
| 1034 | // Set alt text if provided. |
| 1035 | if ( isset( $input['alt_text'] ) ) { |
| 1036 | update_post_meta( $attach_id, '_wp_attachment_image_alt', sanitize_text_field( (string) $input['alt_text'] ) ); |
| 1037 | } |
| 1038 | |
| 1039 | $width = isset( $metadata['width'] ) ? (int) $metadata['width'] : 0; |
| 1040 | $height = isset( $metadata['height'] ) ? (int) $metadata['height'] : 0; |
| 1041 | |
| 1042 | return [ |
| 1043 | 'success' => true, |
| 1044 | 'id' => (int) $attach_id, |
| 1045 | 'url' => (string) wp_get_attachment_url( $attach_id ), |
| 1046 | 'filename' => basename( $sideload['file'] ), |
| 1047 | 'mime_type' => $sideload['type'], |
| 1048 | 'file_size' => $file_size, |
| 1049 | 'width' => $width, |
| 1050 | 'height' => $height, |
| 1051 | 'message' => sprintf( 'Uploaded as attachment %d.', $attach_id ), |
| 1052 | ]; |
| 1053 | }, |
| 1054 | 'permission_callback' => function() { |
| 1055 | return current_user_can( 'upload_files' ); |
| 1056 | }, |
| 1057 | 'meta' => [ |
| 1058 | 'mcp' => [ 'public' => true, 'type' => 'tool' ], |
| 1059 | 'annotations' => [ 'readonly' => false, 'destructive' => false, 'idempotent' => false ], |
| 1060 | ], |
| 1061 | ] ); |
| 1062 | |
| 1063 | // ---- replace-media-file ---- |
| 1064 | wp_register_ability( 'atarim/replace-media-file', [ |
| 1065 | 'label' => 'Replace Media File', |
| 1066 | 'description' => 'Replaces the underlying file of an existing attachment, keeping the SAME attachment ID. Useful when the same image needs a higher-resolution version, or a typo in a graphic needs fixing without breaking every URL/embed that references the old image. Preserves the filename by default so existing URLs continue working. MIME type changes (e.g. JPG → PNG) hard-fail unless confirm_mime_change: true. Regenerates intermediate sizes. Note: external CDN caches (Cloudflare, WP Rocket) may serve the old file until purged — run atarim/purge-all-caches (or atarim/purge-url-cache for the specific file) afterward.', |
| 1067 | 'category' => 'atarim', |
| 1068 | 'input_schema' => [ |
| 1069 | 'type' => 'object', |
| 1070 | 'properties' => [ |
| 1071 | 'id' => [ |
| 1072 | 'type' => 'integer', |
| 1073 | 'description' => 'Attachment ID whose file will be replaced.', |
| 1074 | 'minimum' => 1, |
| 1075 | ], |
| 1076 | 'source' => [ |
| 1077 | 'type' => 'string', |
| 1078 | 'description' => 'How to source the new file. "url" or "base64". Same protections as upload-media.', |
| 1079 | 'enum' => [ 'url', 'base64' ], |
| 1080 | ], |
| 1081 | 'source_url' => [ |
| 1082 | 'type' => 'string', |
| 1083 | 'description' => 'When source is "url": http or https URL of the replacement file.', |
| 1084 | ], |
| 1085 | 'source_data' => [ |
| 1086 | 'type' => 'string', |
| 1087 | 'description' => 'When source is "base64": base64-encoded file contents.', |
| 1088 | ], |
| 1089 | 'rename_to' => [ |
| 1090 | 'type' => 'string', |
| 1091 | 'description' => 'Rename the file to this name (including extension). If omitted, the original filename is preserved — recommended so existing URLs / embeds keep working.', |
| 1092 | ], |
| 1093 | 'confirm_mime_change' => [ |
| 1094 | 'type' => 'boolean', |
| 1095 | 'description' => 'Required when the new file has a different MIME type than the existing attachment. Without this flag the ability hard-fails on mismatch — replacing an image with a non-image is almost always a mistake.', |
| 1096 | 'default' => false, |
| 1097 | ], |
| 1098 | ], |
| 1099 | 'required' => [ 'id', 'source' ], |
| 1100 | 'additionalProperties' => false, |
| 1101 | ], |
| 1102 | 'output_schema' => [ |
| 1103 | 'type' => 'object', |
| 1104 | 'properties' => [ |
| 1105 | 'success' => [ 'type' => 'boolean' ], |
| 1106 | 'id' => [ 'type' => 'integer' ], |
| 1107 | 'url' => [ 'type' => 'string' ], |
| 1108 | 'old_filename' => [ 'type' => 'string' ], |
| 1109 | 'new_filename' => [ 'type' => 'string' ], |
| 1110 | 'old_mime_type' => [ 'type' => 'string' ], |
| 1111 | 'new_mime_type' => [ 'type' => 'string' ], |
| 1112 | 'new_file_size' => [ 'type' => 'integer' ], |
| 1113 | 'width' => [ 'type' => 'integer' ], |
| 1114 | 'height' => [ 'type' => 'integer' ], |
| 1115 | 'message' => [ 'type' => 'string' ], |
| 1116 | ], |
| 1117 | 'required' => [ 'success', 'message' ], |
| 1118 | ], |
| 1119 | 'execute_callback' => function( $input = [] ) { |
| 1120 | $id = isset( $input['id'] ) ? (int) $input['id'] : 0; |
| 1121 | if ( $id <= 0 ) { |
| 1122 | return [ 'success' => false, 'message' => 'id is required and must be a positive integer.' ]; |
| 1123 | } |
| 1124 | $att = get_post( $id ); |
| 1125 | if ( ! $att || $att->post_type !== 'attachment' ) { |
| 1126 | return [ 'success' => false, 'message' => sprintf( 'Attachment %d not found.', $id ) ]; |
| 1127 | } |
| 1128 | if ( ! current_user_can( 'edit_post', $id ) ) { |
| 1129 | return [ 'success' => false, 'message' => 'Permission denied.' ]; |
| 1130 | } |
| 1131 | |
| 1132 | $source = isset( $input['source'] ) ? sanitize_key( $input['source'] ) : ''; |
| 1133 | if ( ! in_array( $source, [ 'url', 'base64' ], true ) ) { |
| 1134 | return [ 'success' => false, 'message' => 'source must be "url" or "base64".' ]; |
| 1135 | } |
| 1136 | |
| 1137 | $existing_path = (string) get_attached_file( $id ); |
| 1138 | $existing_mime = (string) $att->post_mime_type; |
| 1139 | |
| 1140 | if ( $existing_path === '' || ! file_exists( $existing_path ) ) { |
| 1141 | return [ 'success' => false, 'message' => sprintf( 'Attachment %d has no file on disk to replace.', $id ) ]; |
| 1142 | } |
| 1143 | |
| 1144 | // Security: get_attached_file() resolves the caller-writable |
| 1145 | // _wp_attached_file meta. Require the resolved path to be inside the |
| 1146 | // uploads directory before any unlink/copy below, otherwise a poisoned |
| 1147 | // meta value (traversal or absolute path) would delete/overwrite an |
| 1148 | // arbitrary file on the server. See avcf_resolve_within_uploads(). |
| 1149 | $existing_path = $this->avcf_resolve_within_uploads( $existing_path ); |
| 1150 | if ( false === $existing_path ) { |
| 1151 | return [ 'success' => false, 'message' => sprintf( 'Attachment %d resolves to a file outside the uploads directory; refusing to modify it.', $id ) ]; |
| 1152 | } |
| 1153 | $existing_filename = basename( $existing_path ); |
| 1154 | |
| 1155 | $fetched = $this->avcf_fetch_media_source( $source, $input ); |
| 1156 | if ( isset( $fetched['error'] ) ) { |
| 1157 | return [ 'success' => false, 'message' => $fetched['error'] ]; |
| 1158 | } |
| 1159 | |
| 1160 | $tmp_file = $fetched['tmp_file']; |
| 1161 | $new_mime = $fetched['mime']; |
| 1162 | $file_size = $fetched['size']; |
| 1163 | |
| 1164 | // MIME must be in WP's allowed list. |
| 1165 | $allowed = get_allowed_mime_types(); |
| 1166 | if ( ! in_array( $new_mime, $allowed, true ) ) { |
| 1167 | @unlink( $tmp_file ); |
| 1168 | return [ |
| 1169 | 'success' => false, |
| 1170 | 'message' => sprintf( 'MIME type "%s" is not allowed on this site for your user role.', $new_mime ), |
| 1171 | ]; |
| 1172 | } |
| 1173 | |
| 1174 | // Size limit. |
| 1175 | $max = wp_max_upload_size(); |
| 1176 | if ( $max > 0 && $file_size > $max ) { |
| 1177 | @unlink( $tmp_file ); |
| 1178 | return [ |
| 1179 | 'success' => false, |
| 1180 | 'message' => sprintf( 'File size %d bytes exceeds the upload limit of %d bytes.', $file_size, $max ), |
| 1181 | ]; |
| 1182 | } |
| 1183 | |
| 1184 | // MIME mismatch guard. |
| 1185 | $confirm_mime = ! empty( $input['confirm_mime_change'] ); |
| 1186 | if ( $new_mime !== $existing_mime && ! $confirm_mime ) { |
| 1187 | @unlink( $tmp_file ); |
| 1188 | return [ |
| 1189 | 'success' => false, |
| 1190 | 'id' => $id, |
| 1191 | 'old_mime_type' => $existing_mime, |
| 1192 | 'new_mime_type' => $new_mime, |
| 1193 | 'message' => sprintf( |
| 1194 | 'New file MIME type "%s" differs from existing "%s". Pass confirm_mime_change: true to proceed.', |
| 1195 | $new_mime, |
| 1196 | $existing_mime |
| 1197 | ), |
| 1198 | ]; |
| 1199 | } |
| 1200 | |
| 1201 | // Determine destination path. Default: preserve filename (so existing URLs / embeds still work). |
| 1202 | $dir = dirname( $existing_path ); |
| 1203 | $rename_to = isset( $input['rename_to'] ) ? sanitize_file_name( (string) $input['rename_to'] ) : ''; |
| 1204 | $new_filename = ( $rename_to !== '' ) ? $rename_to : $existing_filename; |
| 1205 | $new_path = trailingslashit( $dir ) . $new_filename; |
| 1206 | |
| 1207 | // Delete existing intermediate-size files before regenerating, so stale sizes don't linger. |
| 1208 | $old_meta = wp_get_attachment_metadata( $id ); |
| 1209 | if ( is_array( $old_meta ) && ! empty( $old_meta['sizes'] ) ) { |
| 1210 | foreach ( $old_meta['sizes'] as $size_meta ) { |
| 1211 | if ( empty( $size_meta['file'] ) ) { |
| 1212 | continue; |
| 1213 | } |
| 1214 | // Intermediate-size files are always plain filenames in the same |
| 1215 | // directory as the original. Strip any path component so a poisoned |
| 1216 | // metadata 'file' value can't traverse out of $dir, and re-confirm |
| 1217 | // containment before unlinking. |
| 1218 | $size_file = basename( (string) $size_meta['file'] ); |
| 1219 | if ( '' === $size_file ) { |
| 1220 | continue; |
| 1221 | } |
| 1222 | $size_path = trailingslashit( $dir ) . $size_file; |
| 1223 | if ( file_exists( $size_path ) && false !== $this->avcf_resolve_within_uploads( $size_path ) ) { |
| 1224 | @unlink( $size_path ); |
| 1225 | } |
| 1226 | } |
| 1227 | } |
| 1228 | |
| 1229 | // Replace the file on disk. Delete old if renaming, otherwise overwrite. |
| 1230 | if ( $new_path !== $existing_path && file_exists( $existing_path ) ) { |
| 1231 | @unlink( $existing_path ); |
| 1232 | } |
| 1233 | if ( ! @copy( $tmp_file, $new_path ) ) { |
| 1234 | @unlink( $tmp_file ); |
| 1235 | return [ 'success' => false, 'message' => sprintf( 'Could not write replacement file to %s.', $new_path ) ]; |
| 1236 | } |
| 1237 | @unlink( $tmp_file ); |
| 1238 | |
| 1239 | // Update attachment record: new MIME, new _wp_attached_file if path changed. |
| 1240 | $update_arr = [ |
| 1241 | 'ID' => $id, |
| 1242 | 'post_mime_type' => $new_mime, |
| 1243 | ]; |
| 1244 | wp_update_post( $update_arr ); |
| 1245 | |
| 1246 | // Update _wp_attached_file meta (relative path from uploads dir). |
| 1247 | $uploads = wp_upload_dir(); |
| 1248 | $relative = ltrim( str_replace( trailingslashit( $uploads['basedir'] ), '', $new_path ), '/' ); |
| 1249 | update_post_meta( $id, '_wp_attached_file', $relative ); |
| 1250 | |
| 1251 | // Regenerate intermediate sizes. |
| 1252 | if ( ! function_exists( 'wp_generate_attachment_metadata' ) ) { |
| 1253 | require_once ABSPATH . 'wp-admin/includes/image.php'; |
| 1254 | } |
| 1255 | $new_metadata = wp_generate_attachment_metadata( $id, $new_path ); |
| 1256 | wp_update_attachment_metadata( $id, $new_metadata ); |
| 1257 | |
| 1258 | $width = isset( $new_metadata['width'] ) ? (int) $new_metadata['width'] : 0; |
| 1259 | $height = isset( $new_metadata['height'] ) ? (int) $new_metadata['height'] : 0; |
| 1260 | |
| 1261 | return [ |
| 1262 | 'success' => true, |
| 1263 | 'id' => $id, |
| 1264 | 'url' => (string) wp_get_attachment_url( $id ), |
| 1265 | 'old_filename' => $existing_filename, |
| 1266 | 'new_filename' => $new_filename, |
| 1267 | 'old_mime_type' => $existing_mime, |
| 1268 | 'new_mime_type' => $new_mime, |
| 1269 | 'new_file_size' => $file_size, |
| 1270 | 'width' => $width, |
| 1271 | 'height' => $height, |
| 1272 | 'message' => $new_filename === $existing_filename |
| 1273 | ? 'File replaced; filename preserved. External CDN caches may serve the old file until purged — run atarim/purge-all-caches.' |
| 1274 | : sprintf( 'File replaced and renamed from "%s" to "%s". Existing URLs referencing the old filename will break.', $existing_filename, $new_filename ), |
| 1275 | ]; |
| 1276 | }, |
| 1277 | 'permission_callback' => function() { |
| 1278 | return current_user_can( 'upload_files' ); |
| 1279 | }, |
| 1280 | 'meta' => [ |
| 1281 | 'mcp' => [ 'public' => true, 'type' => 'tool' ], |
| 1282 | 'annotations' => [ 'readonly' => false, 'destructive' => true, 'idempotent' => false ], |
| 1283 | ], |
| 1284 | ] ); |
| 1285 | |
| 1286 | // ---- replace-media-in-content ---- |
| 1287 | wp_register_ability( 'atarim/replace-media-in-content', [ |
| 1288 | 'label' => 'Replace Media In Content', |
| 1289 | 'description' => 'Swaps references to one attachment for another inside a single post\'s body. Rewrites wp-image-{id} class attributes, direct URL references to the old image (including all intermediate sizes), and srcset entries. Both attachments must exist. Defaults to dry-run mode — returns the proposed new content and a replacement count without saving. Pass dry_run: false to write. Limitation: only post_content is rewritten. References inside custom fields, page builder data, or serialized post meta are NOT touched.', |
| 1290 | 'category' => 'atarim', |
| 1291 | 'input_schema' => [ |
| 1292 | 'type' => 'object', |
| 1293 | 'properties' => [ |
| 1294 | 'post_id' => [ |
| 1295 | 'type' => 'integer', |
| 1296 | 'description' => 'Post / page / CPT ID whose body will be rewritten.', |
| 1297 | 'minimum' => 1, |
| 1298 | ], |
| 1299 | 'old_attachment_id' => [ |
| 1300 | 'type' => 'integer', |
| 1301 | 'description' => 'Attachment ID to find references to.', |
| 1302 | 'minimum' => 1, |
| 1303 | ], |
| 1304 | 'new_attachment_id' => [ |
| 1305 | 'type' => 'integer', |
| 1306 | 'description' => 'Attachment ID to replace with.', |
| 1307 | 'minimum' => 1, |
| 1308 | ], |
| 1309 | 'dry_run' => [ |
| 1310 | 'type' => 'boolean', |
| 1311 | 'description' => 'When true (default), returns the proposed new content + replacement count without writing. Pass false to actually save.', |
| 1312 | 'default' => true, |
| 1313 | ], |
| 1314 | ], |
| 1315 | 'required' => [ 'post_id', 'old_attachment_id', 'new_attachment_id' ], |
| 1316 | 'additionalProperties' => false, |
| 1317 | ], |
| 1318 | 'output_schema' => [ |
| 1319 | 'type' => 'object', |
| 1320 | 'properties' => [ |
| 1321 | 'success' => [ 'type' => 'boolean' ], |
| 1322 | 'dry_run' => [ 'type' => 'boolean' ], |
| 1323 | 'post_id' => [ 'type' => 'integer' ], |
| 1324 | 'replacements' => [ 'type' => 'integer' ], |
| 1325 | 'class_rewrites' => [ 'type' => 'integer' ], |
| 1326 | 'url_rewrites' => [ 'type' => 'integer' ], |
| 1327 | 'new_content' => [ 'type' => 'string' ], |
| 1328 | 'message' => [ 'type' => 'string' ], |
| 1329 | ], |
| 1330 | 'required' => [ 'success', 'dry_run', 'message' ], |
| 1331 | ], |
| 1332 | 'execute_callback' => function( $input = [] ) { |
| 1333 | $post_id = isset( $input['post_id'] ) ? (int) $input['post_id'] : 0; |
| 1334 | $old_id = isset( $input['old_attachment_id'] ) ? (int) $input['old_attachment_id'] : 0; |
| 1335 | $new_id = isset( $input['new_attachment_id'] ) ? (int) $input['new_attachment_id'] : 0; |
| 1336 | $dry_run = ! isset( $input['dry_run'] ) ? true : (bool) $input['dry_run']; |
| 1337 | |
| 1338 | if ( $post_id <= 0 || $old_id <= 0 || $new_id <= 0 ) { |
| 1339 | return [ 'success' => false, 'dry_run' => $dry_run, 'message' => 'post_id, old_attachment_id, and new_attachment_id are all required and must be positive integers.' ]; |
| 1340 | } |
| 1341 | if ( $old_id === $new_id ) { |
| 1342 | return [ 'success' => false, 'dry_run' => $dry_run, 'message' => 'old_attachment_id and new_attachment_id must be different.' ]; |
| 1343 | } |
| 1344 | |
| 1345 | $post = get_post( $post_id ); |
| 1346 | if ( ! $post ) { |
| 1347 | return [ 'success' => false, 'dry_run' => $dry_run, 'message' => sprintf( 'Post %d not found.', $post_id ) ]; |
| 1348 | } |
| 1349 | $pt_obj = get_post_type_object( $post->post_type ); |
| 1350 | if ( $pt_obj && ! current_user_can( $pt_obj->cap->edit_post, $post_id ) ) { |
| 1351 | return [ 'success' => false, 'dry_run' => $dry_run, 'message' => sprintf( 'You do not have permission to edit this %s.', $post->post_type ) ]; |
| 1352 | } |
| 1353 | |
| 1354 | $old_att = get_post( $old_id ); |
| 1355 | $new_att = get_post( $new_id ); |
| 1356 | if ( ! $old_att || $old_att->post_type !== 'attachment' ) { |
| 1357 | return [ 'success' => false, 'dry_run' => $dry_run, 'message' => sprintf( 'old_attachment_id %d is not an attachment.', $old_id ) ]; |
| 1358 | } |
| 1359 | if ( ! $new_att || $new_att->post_type !== 'attachment' ) { |
| 1360 | return [ 'success' => false, 'dry_run' => $dry_run, 'message' => sprintf( 'new_attachment_id %d is not an attachment.', $new_id ) ]; |
| 1361 | } |
| 1362 | |
| 1363 | $content = (string) $post->post_content; |
| 1364 | $original_content = $content; |
| 1365 | |
| 1366 | // 1) Rewrite wp-image-{old_id} → wp-image-{new_id}. |
| 1367 | $class_rewrites = 0; |
| 1368 | $content = preg_replace( |
| 1369 | '/wp-image-' . $old_id . '\\b/', |
| 1370 | 'wp-image-' . $new_id, |
| 1371 | $content, |
| 1372 | -1, |
| 1373 | $class_rewrites |
| 1374 | ); |
| 1375 | |
| 1376 | // 2) Rewrite URL references. We collect all known URLs of the old attachment |
| 1377 | // (full + intermediate sizes) and replace each with the equivalent URL of the |
| 1378 | // new attachment. WordPress stores intermediate sizes in metadata. |
| 1379 | $url_rewrites = 0; |
| 1380 | |
| 1381 | $old_meta = wp_get_attachment_metadata( $old_id ); |
| 1382 | $old_uploads_dir = wp_get_attachment_url( $old_id ); |
| 1383 | $old_base_url = $old_uploads_dir ? preg_replace( '#/[^/]+$#', '/', $old_uploads_dir ) : ''; |
| 1384 | |
| 1385 | $new_full_url = (string) wp_get_attachment_url( $new_id ); |
| 1386 | |
| 1387 | // Build URL map: old size URL → new full URL (for now; size-perfect swap is best-effort). |
| 1388 | $url_map = []; |
| 1389 | |
| 1390 | // Old "full" URL. |
| 1391 | if ( $old_uploads_dir ) { |
| 1392 | $url_map[ $old_uploads_dir ] = $new_full_url; |
| 1393 | } |
| 1394 | |
| 1395 | // Old intermediate sizes. |
| 1396 | if ( is_array( $old_meta ) && ! empty( $old_meta['sizes'] ) && $old_base_url !== '' ) { |
| 1397 | foreach ( $old_meta['sizes'] as $size_name => $size_meta ) { |
| 1398 | if ( empty( $size_meta['file'] ) ) { |
| 1399 | continue; |
| 1400 | } |
| 1401 | $old_size_url = $old_base_url . $size_meta['file']; |
| 1402 | // Try to map to the same-named size on the new attachment if it exists; else fall back to new full. |
| 1403 | $new_size_url = wp_get_attachment_image_url( $new_id, $size_name ); |
| 1404 | $url_map[ $old_size_url ] = $new_size_url ? $new_size_url : $new_full_url; |
| 1405 | } |
| 1406 | } |
| 1407 | |
| 1408 | // Apply URL replacements. Longest URL first so size-suffixed URLs don't get partially |
| 1409 | // matched by the shorter base URL. |
| 1410 | uksort( $url_map, function( $a, $b ) { return strlen( $b ) - strlen( $a ); } ); |
| 1411 | |
| 1412 | foreach ( $url_map as $old_url => $new_url ) { |
| 1413 | $count = 0; |
| 1414 | $content = str_replace( $old_url, $new_url, $content, $count ); |
| 1415 | $url_rewrites += $count; |
| 1416 | } |
| 1417 | |
| 1418 | $total_replacements = $class_rewrites + $url_rewrites; |
| 1419 | |
| 1420 | if ( $total_replacements === 0 ) { |
| 1421 | return [ |
| 1422 | 'success' => true, |
| 1423 | 'dry_run' => $dry_run, |
| 1424 | 'post_id' => $post_id, |
| 1425 | 'replacements' => 0, |
| 1426 | 'class_rewrites' => 0, |
| 1427 | 'url_rewrites' => 0, |
| 1428 | 'new_content' => $original_content, |
| 1429 | 'message' => sprintf( 'No references to attachment %d found in post %d.', $old_id, $post_id ), |
| 1430 | ]; |
| 1431 | } |
| 1432 | |
| 1433 | if ( $dry_run ) { |
| 1434 | return [ |
| 1435 | 'success' => true, |
| 1436 | 'dry_run' => true, |
| 1437 | 'post_id' => $post_id, |
| 1438 | 'replacements' => $total_replacements, |
| 1439 | 'class_rewrites' => $class_rewrites, |
| 1440 | 'url_rewrites' => $url_rewrites, |
| 1441 | 'new_content' => $content, |
| 1442 | 'message' => sprintf( 'DRY RUN: %d total replacement(s) (%d class, %d URL) would be made in post %d. Pass dry_run: false to save.', $total_replacements, $class_rewrites, $url_rewrites, $post_id ), |
| 1443 | ]; |
| 1444 | } |
| 1445 | |
| 1446 | // Save. |
| 1447 | $result = wp_update_post( [ 'ID' => $post_id, 'post_content' => $content ], true ); |
| 1448 | if ( is_wp_error( $result ) ) { |
| 1449 | return [ 'success' => false, 'dry_run' => false, 'message' => 'Save failed: ' . $result->get_error_message() ]; |
| 1450 | } |
| 1451 | |
| 1452 | return [ |
| 1453 | 'success' => true, |
| 1454 | 'dry_run' => false, |
| 1455 | 'post_id' => $post_id, |
| 1456 | 'replacements' => $total_replacements, |
| 1457 | 'class_rewrites' => $class_rewrites, |
| 1458 | 'url_rewrites' => $url_rewrites, |
| 1459 | 'new_content' => $content, |
| 1460 | 'message' => sprintf( '%d replacement(s) saved in post %d (%d class, %d URL).', $total_replacements, $post_id, $class_rewrites, $url_rewrites ), |
| 1461 | ]; |
| 1462 | }, |
| 1463 | 'permission_callback' => function() { |
| 1464 | return current_user_can( 'edit_posts' ); |
| 1465 | }, |
| 1466 | 'meta' => [ |
| 1467 | 'mcp' => [ 'public' => true, 'type' => 'tool' ], |
| 1468 | 'annotations' => [ 'readonly' => false, 'destructive' => false, 'idempotent' => false ], |
| 1469 | ], |
| 1470 | ] ); |
| 1471 | |
| 1472 | // ---- regenerate-image ---- |
| 1473 | wp_register_ability( 'atarim/regenerate-image', [ |
| 1474 | 'label' => 'Regenerate Image Sub-sizes', |
| 1475 | 'description' => 'Regenerate the sub-sizes (thumbnails / intermediate sizes) for one or more image attachments using WordPress core. Use after registering new image sizes, switching themes, or to shrink derivative files. Pass attachment_id for one, or attachment_ids for a batch (max 25 per call). Optional quality (1-100) re-encodes the GENERATED sub-sizes at that JPEG/WebP quality for a plugin-free size win; the ORIGINAL master file is never modified. Non-image attachments are skipped with a note. Each image is processed independently (per-image time/memory limits are raised best-effort) so one failure does not abort the rest of the batch, and images already done in a batch are saved even if a later one fails. However, a single very heavy image can still exceed a host hard PHP limit (PHP-FPM / web-server max execution time), which aborts the request — for heavy libraries process singly or use WP-CLI. To optimize an entire large library, work in small batches.', |
| 1476 | 'category' => 'atarim', |
| 1477 | 'input_schema' => [ |
| 1478 | 'type' => 'object', |
| 1479 | 'properties' => [ |
| 1480 | 'attachment_id' => [ 'type' => 'integer', 'minimum' => 1, 'description' => 'A single attachment ID.' ], |
| 1481 | 'attachment_ids' => [ 'type' => 'array', 'maxItems' => 25, 'items' => [ 'type' => 'integer', 'minimum' => 1 ], 'description' => 'Several attachment IDs (max 25).' ], |
| 1482 | 'quality' => [ 'type' => 'integer', 'minimum' => 1, 'maximum' => 100, 'description' => 'Re-encode the generated sub-sizes at this quality (1-100). The original is not touched. Omit to use the site default.' ], |
| 1483 | ], |
| 1484 | 'additionalProperties' => false, |
| 1485 | ], |
| 1486 | 'output_schema' => [ |
| 1487 | 'type' => 'object', |
| 1488 | 'properties' => [ |
| 1489 | 'success' => [ 'type' => 'boolean' ], |
| 1490 | 'regenerated_count' => [ 'type' => 'integer' ], |
| 1491 | 'results' => [ 'type' => 'array' ], |
| 1492 | 'message' => [ 'type' => 'string' ], |
| 1493 | ], |
| 1494 | 'required' => [ 'success', 'message' ], |
| 1495 | ], |
| 1496 | 'execute_callback' => function( $input = [] ) { |
| 1497 | // Collect target IDs from either input shape. |
| 1498 | $ids = []; |
| 1499 | if ( isset( $input['attachment_id'] ) ) { |
| 1500 | $ids[] = (int) $input['attachment_id']; |
| 1501 | } |
| 1502 | if ( isset( $input['attachment_ids'] ) && is_array( $input['attachment_ids'] ) ) { |
| 1503 | foreach ( $input['attachment_ids'] as $one ) { $ids[] = (int) $one; } |
| 1504 | } |
| 1505 | $ids = array_values( array_unique( array_filter( $ids, function( $v ) { return $v > 0; } ) ) ); |
| 1506 | if ( empty( $ids ) ) { |
| 1507 | return [ 'success' => false, 'message' => 'Provide attachment_id or attachment_ids.' ]; |
| 1508 | } |
| 1509 | if ( count( $ids ) > 25 ) { |
| 1510 | return [ 'success' => false, 'message' => sprintf( 'Too many IDs (%d); max 25 per call. Split into batches.', count( $ids ) ) ]; |
| 1511 | } |
| 1512 | |
| 1513 | if ( ! function_exists( 'wp_generate_attachment_metadata' ) ) { |
| 1514 | require_once ABSPATH . 'wp-admin/includes/image.php'; |
| 1515 | } |
| 1516 | if ( ! function_exists( 'wp_generate_attachment_metadata' ) ) { |
| 1517 | return [ 'success' => false, 'message' => 'Image metadata functions are unavailable.' ]; |
| 1518 | } |
| 1519 | |
| 1520 | // Optional quality: applies ONLY to the sub-sizes generated below; |
| 1521 | // the original master is never re-encoded. Filters are removed after. |
| 1522 | $quality = isset( $input['quality'] ) ? (int) $input['quality'] : 0; |
| 1523 | $filter = null; |
| 1524 | if ( $quality >= 1 && $quality <= 100 ) { |
| 1525 | $filter = function() use ( $quality ) { return $quality; }; |
| 1526 | add_filter( 'wp_editor_set_quality', $filter, 9999 ); |
| 1527 | add_filter( 'jpeg_quality', $filter, 9999 ); |
| 1528 | } |
| 1529 | |
| 1530 | // Image processing is memory-heavy; raise the ceiling (best-effort). |
| 1531 | wp_raise_memory_limit( 'image' ); |
| 1532 | |
| 1533 | $results = []; |
| 1534 | $ok = 0; |
| 1535 | foreach ( $ids as $id ) { |
| 1536 | // Give EACH image its own time budget so a batch does not |
| 1537 | // accumulate toward max_execution_time (that accumulation is |
| 1538 | // why one heavy image could kill an entire batch). Best-effort: |
| 1539 | // the host may disable set_time_limit or enforce a hard |
| 1540 | // PHP-FPM / web-server limit, in which case a single very heavy |
| 1541 | // image still needs WP-CLI or a raised server limit. |
| 1542 | if ( function_exists( 'set_time_limit' ) ) { |
| 1543 | @set_time_limit( 0 ); // phpcs:ignore |
| 1544 | } |
| 1545 | if ( 'attachment' !== get_post_type( $id ) ) { |
| 1546 | $results[] = [ 'id' => $id, 'regenerated' => false, 'message' => 'Not an attachment.' ]; |
| 1547 | continue; |
| 1548 | } |
| 1549 | if ( ! wp_attachment_is_image( $id ) ) { |
| 1550 | $results[] = [ 'id' => $id, 'regenerated' => false, 'message' => 'Not an image attachment; skipped.' ]; |
| 1551 | continue; |
| 1552 | } |
| 1553 | $file = get_attached_file( $id ); |
| 1554 | if ( ! $file || ! file_exists( $file ) ) { |
| 1555 | $results[] = [ 'id' => $id, 'regenerated' => false, 'message' => 'Original file missing on disk.' ]; |
| 1556 | continue; |
| 1557 | } |
| 1558 | // Per-image try/catch so a catchable fatal (e.g. an image |
| 1559 | // library exception) on one image does not abort the whole |
| 1560 | // batch. A true max_execution_time timeout is NOT catchable — |
| 1561 | // it hard-kills the request — so heavy files may still need |
| 1562 | // singly-processing or WP-CLI. |
| 1563 | try { |
| 1564 | $meta = wp_generate_attachment_metadata( $id, $file ); |
| 1565 | if ( is_wp_error( $meta ) ) { |
| 1566 | $results[] = [ 'id' => $id, 'regenerated' => false, 'message' => 'Regeneration failed: ' . $meta->get_error_message() ]; |
| 1567 | continue; |
| 1568 | } |
| 1569 | if ( empty( $meta ) ) { |
| 1570 | $results[] = [ 'id' => $id, 'regenerated' => false, 'message' => 'Regeneration produced no metadata (unsupported or unreadable image).' ]; |
| 1571 | continue; |
| 1572 | } |
| 1573 | wp_update_attachment_metadata( $id, $meta ); |
| 1574 | $sizes = ( isset( $meta['sizes'] ) && is_array( $meta['sizes'] ) ) ? array_keys( $meta['sizes'] ) : []; |
| 1575 | $ok++; |
| 1576 | $results[] = [ 'id' => $id, 'regenerated' => true, 'sizes' => $sizes, 'message' => sprintf( '%d sub-size(s) generated.', count( $sizes ) ) ]; |
| 1577 | } catch ( \Throwable $e ) { |
| 1578 | $results[] = [ 'id' => $id, 'regenerated' => false, 'message' => 'Failed: ' . $e->getMessage() ]; |
| 1579 | } |
| 1580 | } |
| 1581 | |
| 1582 | if ( $filter ) { |
| 1583 | remove_filter( 'wp_editor_set_quality', $filter, 9999 ); |
| 1584 | remove_filter( 'jpeg_quality', $filter, 9999 ); |
| 1585 | } |
| 1586 | |
| 1587 | return [ |
| 1588 | 'success' => true, |
| 1589 | 'regenerated_count' => $ok, |
| 1590 | 'results' => $results, |
| 1591 | 'message' => sprintf( 'Regenerated %d of %d image(s)%s.', $ok, count( $ids ), ( $quality >= 1 && $quality <= 100 ) ? sprintf( ' at quality %d (original untouched)', $quality ) : '' ), |
| 1592 | ]; |
| 1593 | }, |
| 1594 | 'permission_callback' => function() { |
| 1595 | return current_user_can( 'upload_files' ); |
| 1596 | }, |
| 1597 | 'meta' => [ |
| 1598 | 'mcp' => [ 'public' => true, 'type' => 'tool' ], |
| 1599 | 'annotations' => [ 'readonly' => false, 'destructive' => false, 'idempotent' => true ], |
| 1600 | ], |
| 1601 | ] ); |
| 1602 | } |
| 1603 | |
| 1604 | /** |
| 1605 | * Fetch a media source — URL download or base64 decode — into a temp file. |
| 1606 | * |
| 1607 | * Returns one of: |
| 1608 | * [ 'tmp_file' => path, 'filename' => name, 'mime' => mime, 'size' => bytes ] |
| 1609 | * [ 'error' => message ] |
| 1610 | * |
| 1611 | * URL fetch enforces SSRF protections: only http/https schemes, blocks RFC1918 |
| 1612 | * private ranges, loopback, link-local, and cloud metadata endpoints |
| 1613 | * (AWS 169.254.169.254 etc). |
| 1614 | * |
| 1615 | * @param string $source 'url' or 'base64' |
| 1616 | * @param array $input The ability call input |
| 1617 | * @return array |
| 1618 | */ |
| 1619 | private function avcf_fetch_media_source( $source, $input ) { |
| 1620 | if ( $source === 'url' ) { |
| 1621 | $url = isset( $input['source_url'] ) ? esc_url_raw( (string) $input['source_url'] ) : ''; |
| 1622 | if ( $url === '' ) { |
| 1623 | return [ 'error' => 'source_url is required when source is "url".' ]; |
| 1624 | } |
| 1625 | |
| 1626 | $ssrf_err = $this->avcf_check_url_safety( $url ); |
| 1627 | if ( $ssrf_err !== null ) { |
| 1628 | return [ 'error' => $ssrf_err ]; |
| 1629 | } |
| 1630 | |
| 1631 | // Stream to a temp file. download_url uses WP HTTP API + handles redirects. |
| 1632 | if ( ! function_exists( 'download_url' ) ) { |
| 1633 | require_once ABSPATH . 'wp-admin/includes/file.php'; |
| 1634 | } |
| 1635 | $tmp = download_url( $url, 60 ); |
| 1636 | if ( is_wp_error( $tmp ) ) { |
| 1637 | return [ 'error' => 'Download failed: ' . $tmp->get_error_message() ]; |
| 1638 | } |
| 1639 | |
| 1640 | $filename = isset( $input['filename'] ) ? sanitize_file_name( (string) $input['filename'] ) : ''; |
| 1641 | if ( $filename === '' ) { |
| 1642 | $parsed = wp_parse_url( $url ); |
| 1643 | $path = isset( $parsed['path'] ) ? $parsed['path'] : ''; |
| 1644 | $filename = sanitize_file_name( basename( (string) $path ) ); |
| 1645 | if ( $filename === '' ) { |
| 1646 | $filename = 'upload-' . time(); |
| 1647 | } |
| 1648 | } |
| 1649 | |
| 1650 | $size = (int) @filesize( $tmp ); |
| 1651 | $mime = $this->avcf_detect_mime( $tmp, $filename ); |
| 1652 | |
| 1653 | return [ |
| 1654 | 'tmp_file' => $tmp, |
| 1655 | 'filename' => $filename, |
| 1656 | 'mime' => $mime, |
| 1657 | 'size' => $size, |
| 1658 | ]; |
| 1659 | } |
| 1660 | |
| 1661 | if ( $source === 'base64' ) { |
| 1662 | $data = isset( $input['source_data'] ) ? (string) $input['source_data'] : ''; |
| 1663 | if ( $data === '' ) { |
| 1664 | return [ 'error' => 'source_data is required when source is "base64".' ]; |
| 1665 | } |
| 1666 | |
| 1667 | // Strip data: URL prefix defensively if caller forgot. We document that they |
| 1668 | // should send raw base64, but be lenient on input. |
| 1669 | if ( strpos( $data, 'data:' ) === 0 ) { |
| 1670 | $comma = strpos( $data, ',' ); |
| 1671 | if ( $comma !== false ) { |
| 1672 | $data = substr( $data, $comma + 1 ); |
| 1673 | } |
| 1674 | } |
| 1675 | |
| 1676 | // strict mode false — be tolerant of whitespace / newlines in pasted base64 |
| 1677 | $decoded = base64_decode( $data, true ); |
| 1678 | if ( $decoded === false ) { |
| 1679 | return [ 'error' => 'source_data is not valid base64.' ]; |
| 1680 | } |
| 1681 | |
| 1682 | $filename = isset( $input['filename'] ) ? sanitize_file_name( (string) $input['filename'] ) : ''; |
| 1683 | if ( $filename === '' ) { |
| 1684 | return [ 'error' => 'filename is required when source is "base64" (we need the extension to determine MIME).' ]; |
| 1685 | } |
| 1686 | |
| 1687 | if ( ! function_exists( 'wp_tempnam' ) ) { |
| 1688 | require_once ABSPATH . 'wp-admin/includes/file.php'; |
| 1689 | } |
| 1690 | $tmp = wp_tempnam( $filename ); |
| 1691 | if ( ! $tmp ) { |
| 1692 | return [ 'error' => 'Could not create temporary file for upload.' ]; |
| 1693 | } |
| 1694 | if ( file_put_contents( $tmp, $decoded ) === false ) { |
| 1695 | @unlink( $tmp ); |
| 1696 | return [ 'error' => 'Could not write decoded data to temporary file.' ]; |
| 1697 | } |
| 1698 | |
| 1699 | $size = strlen( $decoded ); |
| 1700 | $mime = $this->avcf_detect_mime( $tmp, $filename ); |
| 1701 | |
| 1702 | return [ |
| 1703 | 'tmp_file' => $tmp, |
| 1704 | 'filename' => $filename, |
| 1705 | 'mime' => $mime, |
| 1706 | 'size' => $size, |
| 1707 | ]; |
| 1708 | } |
| 1709 | |
| 1710 | return [ 'error' => sprintf( 'Unknown source "%s".', $source ) ]; |
| 1711 | } |
| 1712 | |
| 1713 | /** |
| 1714 | * Validate a URL for safe outbound fetching (SSRF protection). |
| 1715 | * |
| 1716 | * Returns null on safe; a string error message otherwise. Blocks: |
| 1717 | * - non-http/https schemes |
| 1718 | * - empty hosts |
| 1719 | * - private RFC1918 ranges (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16) |
| 1720 | * - loopback (127.0.0.0/8, ::1) |
| 1721 | * - link-local (169.254.0.0/16) — includes AWS / GCP / Azure metadata endpoints |
| 1722 | * - localhost-named hosts |
| 1723 | * |
| 1724 | * @param string $url |
| 1725 | * @return string|null |
| 1726 | */ |
| 1727 | private function avcf_check_url_safety( $url ) { |
| 1728 | $parsed = wp_parse_url( $url ); |
| 1729 | if ( ! is_array( $parsed ) || empty( $parsed['scheme'] ) || empty( $parsed['host'] ) ) { |
| 1730 | return 'Invalid URL — could not parse scheme and host.'; |
| 1731 | } |
| 1732 | |
| 1733 | $scheme = strtolower( $parsed['scheme'] ); |
| 1734 | if ( $scheme !== 'http' && $scheme !== 'https' ) { |
| 1735 | return sprintf( 'URL scheme "%s" is not allowed — only http and https are supported.', $scheme ); |
| 1736 | } |
| 1737 | |
| 1738 | $host = strtolower( $parsed['host'] ); |
| 1739 | if ( in_array( $host, [ 'localhost', 'localhost.localdomain' ], true ) ) { |
| 1740 | return 'Hostname "localhost" is not allowed.'; |
| 1741 | } |
| 1742 | |
| 1743 | // Resolve to IPs and check each against private/loopback/link-local ranges. |
| 1744 | // gethostbynamel returns array of IPv4 addresses, or false on failure. |
| 1745 | $ips = @gethostbynamel( $host ); |
| 1746 | // If it's already an IP literal, gethostbynamel may return false; check filter_var below. |
| 1747 | if ( ! is_array( $ips ) ) { |
| 1748 | // Maybe an IP literal directly. |
| 1749 | if ( filter_var( $host, FILTER_VALIDATE_IP ) ) { |
| 1750 | $ips = [ $host ]; |
| 1751 | } else { |
| 1752 | return sprintf( 'Could not resolve host "%s".', $host ); |
| 1753 | } |
| 1754 | } |
| 1755 | |
| 1756 | foreach ( $ips as $ip ) { |
| 1757 | if ( ! filter_var( $ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE ) ) { |
| 1758 | return sprintf( 'URL host resolves to a blocked address (%s — private, loopback, or link-local range).', $ip ); |
| 1759 | } |
| 1760 | // FILTER_FLAG_NO_RES_RANGE covers link-local; just being explicit about the AWS metadata IP for clarity. |
| 1761 | if ( $ip === '169.254.169.254' ) { |
| 1762 | return 'URL host resolves to a cloud metadata endpoint (169.254.169.254) — blocked.'; |
| 1763 | } |
| 1764 | } |
| 1765 | |
| 1766 | return null; |
| 1767 | } |
| 1768 | |
| 1769 | /** |
| 1770 | * Detect MIME type of a file. Prefers WP's wp_check_filetype_and_ext which |
| 1771 | * combines extension-based and finfo-based detection. Falls back to finfo |
| 1772 | * directly if needed. |
| 1773 | * |
| 1774 | * @param string $path Filesystem path to the file |
| 1775 | * @param string $filename Original filename (used by WP's extension check) |
| 1776 | * @return string MIME type, or empty string if undetectable |
| 1777 | */ |
| 1778 | private function avcf_detect_mime( $path, $filename ) { |
| 1779 | if ( ! function_exists( 'wp_check_filetype_and_ext' ) ) { |
| 1780 | require_once ABSPATH . 'wp-admin/includes/file.php'; |
| 1781 | } |
| 1782 | $check = wp_check_filetype_and_ext( $path, $filename ); |
| 1783 | if ( ! empty( $check['type'] ) ) { |
| 1784 | return (string) $check['type']; |
| 1785 | } |
| 1786 | // Fallback to finfo direct. |
| 1787 | if ( function_exists( 'finfo_open' ) ) { |
| 1788 | $finfo = finfo_open( FILEINFO_MIME_TYPE ); |
| 1789 | if ( $finfo ) { |
| 1790 | $mime = finfo_file( $finfo, $path ); |
| 1791 | finfo_close( $finfo ); |
| 1792 | if ( $mime ) { |
| 1793 | return (string) $mime; |
| 1794 | } |
| 1795 | } |
| 1796 | } |
| 1797 | return ''; |
| 1798 | } |
| 1799 | |
| 1800 | /** |
| 1801 | * Canonicalize a filesystem path and require it to live inside the WordPress |
| 1802 | * uploads directory. |
| 1803 | * |
| 1804 | * Several abilities locate a file to delete/overwrite via get_attached_file(), |
| 1805 | * which trusts the attachment's _wp_attached_file meta. That meta is |
| 1806 | * caller-writable (e.g. through atarim/update-post-field), so a traversal |
| 1807 | * ("../../wp-config.php") or absolute value would make those disk operations |
| 1808 | * escape the uploads directory — enabling arbitrary file deletion and, from |
| 1809 | * there, remote code execution. Resolving the real path and confirming |
| 1810 | * containment before any unlink/copy closes that hole regardless of how the |
| 1811 | * meta was poisoned. |
| 1812 | * |
| 1813 | * @param string $path Filesystem path (typically from get_attached_file()). |
| 1814 | * @return string|false Canonical path if it exists and is inside uploads, else false. |
| 1815 | */ |
| 1816 | private function avcf_resolve_within_uploads( $path ) { |
| 1817 | $path = (string) $path; |
| 1818 | if ( '' === $path || strpos( $path, "\0" ) !== false ) { |
| 1819 | return false; |
| 1820 | } |
| 1821 | |
| 1822 | $uploads = wp_upload_dir(); |
| 1823 | if ( empty( $uploads['basedir'] ) ) { |
| 1824 | return false; |
| 1825 | } |
| 1826 | |
| 1827 | $basedir_real = realpath( $uploads['basedir'] ); |
| 1828 | $real = realpath( $path ); |
| 1829 | if ( false === $basedir_real || false === $real ) { |
| 1830 | return false; |
| 1831 | } |
| 1832 | |
| 1833 | // Compare with a trailing separator on both sides so that a sibling |
| 1834 | // directory sharing a name prefix (e.g. ".../uploads-evil/") can't pass. |
| 1835 | $basedir_cmp = rtrim( $basedir_real, '/\\' ) . DIRECTORY_SEPARATOR; |
| 1836 | $real_cmp = $real . DIRECTORY_SEPARATOR; |
| 1837 | if ( 0 !== strpos( $real_cmp, $basedir_cmp ) ) { |
| 1838 | return false; |
| 1839 | } |
| 1840 | |
| 1841 | return $real; |
| 1842 | } |
| 1843 | } |