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REST API endpoints for your WordPress content. These endpoints provide machine-readable external access to your WordPress site with a clear, standards-driven interface, allowing new and innovative apps for interacting with your site. These endpoints support all of the following: - Posts: Read and write access to all post data, for all types of post-based data, including pages and media. - Comments: Read and write access to all comment data. This includes pingbacks and trackbacks. - Terms: Read and write access to all term data. - Users: Read and write access to all user data. This includes public access to some data for post authors. - Meta: Read and write access to metadata for posts, comments, terms, and users, on an opt-in basis from plugins. - Settings: Read and write access to settings, on an opt-in basis from plugins and core. This enables API management of key site content values that are technically stored in options, such as site title and byline. Love your REST API, WordPress! The infrastructure says, "Let's do lunch!" but the content API endpoints say, "You're paying!" Props rmccue, rachelbaker, danielbachhuber, joehoyle, adamsilverstein, afurculita, ahmadawais, airesvsg, alisspers, antisilent, apokalyptik, artoliukkonen, attitude, boonebgorges, bradyvercher, brianhogg, caseypatrickdriscoll, chopinbach, chredd, christianesperar, chrisvanpatten, claudiolabarbera, claudiosmweb, cmmarslender, codebykat, coderkevin, codfish, codonnell822, daggerhart, danielpunkass, davidbhayes, delphinus, desrosj, dimadin, dotancohen, DrewAPicture, Dudo1985, duncanjbrown, eherman24, eivhyl, eliorivero, elyobo, en-alis, ericandrewlewis, ericpedia, evansobkowicz, fjarrett, frozzare, georgestephanis, greatislander, guavaworks, hideokamoto, hkdobrev, hubdotcom, hurtige, iandunn, ircrash, ironpaperweight, iseulde, Japh, jaredcobb, JDGrimes, jdolan, jdoubleu, jeremyfelt, jimt, jjeaton, jmusal, jnylen0, johanmynhardt, johnbillion, jonathanbardo, jorbin, joshkadis, JPry, jshreve, jtsternberg, JustinSainton, kacperszurek, kadamwhite, kalenjohnson, kellbot, kjbenk, kokarn, krogsgard, kuchenundkakao, kuldipem, kwight, lgedeon, lukepettway, mantismamita, markoheijnen, matrixik, mattheu, mauteri, maxcutler, mayukojpn, michael-arestad, miyauchi, mjbanks, modemlooper, mrbobbybryant, NateWr, nathanrice, netweb, NikV, nullvariable, oskosk, oso96_2000, oxymoron, pcfreak30, pento, peterwilsoncc, Pezzab, phh, pippinsplugins, pjgalbraith, pkevan, pollyplummer, pushred, quasel, QWp6t, schlessera, schrapel, Shelob9, shprink, simonlampen, Soean, solal, tapsboy, tfrommen, tharsheblows, thenbrent, tierra, tlovett1, tnegri, tobych, Toddses, toro_unit, traversal, vanillalounge, vishalkakadiya, wanecek, web2style, webbgaraget, websupporter, westonruter, whyisjake, wonderboymusic, wpsmith, xknown, zyphonic. Fixes #38373. Built from https://develop.svn.wordpress.org/trunk@38832 git-svn-id: http://core.svn.wordpress.org/trunk@38775 1a063a9b-81f0-0310-95a4-ce76da25c4cd
608 lines
20 KiB
PHP
608 lines
20 KiB
PHP
<?php
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class WP_REST_Attachments_Controller extends WP_REST_Posts_Controller {
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/**
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* Determine the allowed query_vars for a get_items() response and
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* prepare for WP_Query.
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*
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* @param array $prepared_args Optional. Array of prepared arguments.
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* @param WP_REST_Request $request Optional. Request to prepare items for.
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* @return array Array of query arguments.
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*/
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protected function prepare_items_query( $prepared_args = array(), $request = null ) {
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$query_args = parent::prepare_items_query( $prepared_args, $request );
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if ( empty( $query_args['post_status'] ) || ! in_array( $query_args['post_status'], array( 'inherit', 'private', 'trash' ), true ) ) {
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$query_args['post_status'] = 'inherit';
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}
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$media_types = $this->get_media_types();
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if ( ! empty( $request['media_type'] ) && isset( $media_types[ $request['media_type'] ] ) ) {
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$query_args['post_mime_type'] = $media_types[ $request['media_type'] ];
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}
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if ( ! empty( $request['mime_type'] ) ) {
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$parts = explode( '/', $request['mime_type'] );
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if ( isset( $media_types[ $parts[0] ] ) && in_array( $request['mime_type'], $media_types[ $parts[0] ], true ) ) {
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$query_args['post_mime_type'] = $request['mime_type'];
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}
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}
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return $query_args;
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}
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/**
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* Check if a given request has access to create an attachment.
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*
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* @param WP_REST_Request $request Full details about the request.
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* @return WP_Error|true Boolean true if the attachment may be created, or a WP_Error if not.
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*/
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public function create_item_permissions_check( $request ) {
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$ret = parent::create_item_permissions_check( $request );
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if ( ! $ret || is_wp_error( $ret ) ) {
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return $ret;
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}
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if ( ! current_user_can( 'upload_files' ) ) {
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return new WP_Error( 'rest_cannot_create', __( 'Sorry, you are not allowed to upload media on this site.' ), array( 'status' => 400 ) );
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}
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// Attaching media to a post requires ability to edit said post.
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if ( ! empty( $request['post'] ) ) {
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$parent = $this->get_post( (int) $request['post'] );
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$post_parent_type = get_post_type_object( $parent->post_type );
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if ( ! current_user_can( $post_parent_type->cap->edit_post, $request['post'] ) ) {
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return new WP_Error( 'rest_cannot_edit', __( 'Sorry, you are not allowed to upload media to this resource.' ), array( 'status' => rest_authorization_required_code() ) );
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}
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}
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return true;
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}
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/**
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* Create a single attachment.
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*
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* @param WP_REST_Request $request Full details about the request.
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* @return WP_Error|WP_REST_Response Response object on success, WP_Error object on failure.
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*/
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public function create_item( $request ) {
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if ( ! empty( $request['post'] ) && in_array( get_post_type( $request['post'] ), array( 'revision', 'attachment' ), true ) ) {
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return new WP_Error( 'rest_invalid_param', __( 'Invalid parent type.' ), array( 'status' => 400 ) );
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}
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// Get the file via $_FILES or raw data
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$files = $request->get_file_params();
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$headers = $request->get_headers();
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if ( ! empty( $files ) ) {
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$file = $this->upload_from_file( $files, $headers );
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} else {
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$file = $this->upload_from_data( $request->get_body(), $headers );
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}
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if ( is_wp_error( $file ) ) {
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return $file;
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}
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$name = basename( $file['file'] );
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$name_parts = pathinfo( $name );
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$name = trim( substr( $name, 0, -(1 + strlen( $name_parts['extension'] ) ) ) );
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$url = $file['url'];
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$type = $file['type'];
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$file = $file['file'];
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// use image exif/iptc data for title and caption defaults if possible
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// @codingStandardsIgnoreStart
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$image_meta = @wp_read_image_metadata( $file );
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// @codingStandardsIgnoreEnd
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if ( ! empty( $image_meta ) ) {
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if ( empty( $request['title'] ) && trim( $image_meta['title'] ) && ! is_numeric( sanitize_title( $image_meta['title'] ) ) ) {
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$request['title'] = $image_meta['title'];
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}
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if ( empty( $request['caption'] ) && trim( $image_meta['caption'] ) ) {
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$request['caption'] = $image_meta['caption'];
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}
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}
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$attachment = $this->prepare_item_for_database( $request );
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$attachment->file = $file;
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$attachment->post_mime_type = $type;
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$attachment->guid = $url;
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if ( empty( $attachment->post_title ) ) {
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$attachment->post_title = preg_replace( '/\.[^.]+$/', '', basename( $file ) );
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}
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$id = wp_insert_post( $attachment, true );
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if ( is_wp_error( $id ) ) {
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if ( 'db_update_error' === $id->get_error_code() ) {
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$id->add_data( array( 'status' => 500 ) );
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} else {
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$id->add_data( array( 'status' => 400 ) );
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}
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return $id;
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}
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$attachment = $this->get_post( $id );
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// Include admin functions to get access to wp_generate_attachment_metadata().
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require_once ABSPATH . 'wp-admin/includes/admin.php';
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wp_update_attachment_metadata( $id, wp_generate_attachment_metadata( $id, $file ) );
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if ( isset( $request['alt_text'] ) ) {
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update_post_meta( $id, '_wp_attachment_image_alt', sanitize_text_field( $request['alt_text'] ) );
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}
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$fields_update = $this->update_additional_fields_for_object( $attachment, $request );
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if ( is_wp_error( $fields_update ) ) {
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return $fields_update;
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}
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$request->set_param( 'context', 'edit' );
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$response = $this->prepare_item_for_response( $attachment, $request );
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$response = rest_ensure_response( $response );
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$response->set_status( 201 );
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$response->header( 'Location', rest_url( sprintf( '%s/%s/%d', $this->namespace, $this->rest_base, $id ) ) );
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/**
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* Fires after a single attachment is created or updated via the REST API.
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*
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* @param object $attachment Inserted attachment.
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* @param WP_REST_Request $request The request sent to the API.
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* @param boolean $creating True when creating an attachment, false when updating.
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*/
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do_action( 'rest_insert_attachment', $attachment, $request, true );
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return $response;
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}
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/**
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* Update a single post.
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*
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* @param WP_REST_Request $request Full details about the request.
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* @return WP_Error|WP_REST_Response Response object on success, WP_Error object on failure.
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*/
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public function update_item( $request ) {
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if ( ! empty( $request['post'] ) && in_array( get_post_type( $request['post'] ), array( 'revision', 'attachment' ), true ) ) {
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return new WP_Error( 'rest_invalid_param', __( 'Invalid parent type.' ), array( 'status' => 400 ) );
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}
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$response = parent::update_item( $request );
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if ( is_wp_error( $response ) ) {
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return $response;
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}
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$response = rest_ensure_response( $response );
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$data = $response->get_data();
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if ( isset( $request['alt_text'] ) ) {
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update_post_meta( $data['id'], '_wp_attachment_image_alt', $request['alt_text'] );
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}
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$attachment = $this->get_post( $request['id'] );
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$fields_update = $this->update_additional_fields_for_object( $attachment, $request );
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if ( is_wp_error( $fields_update ) ) {
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return $fields_update;
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}
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$request->set_param( 'context', 'edit' );
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$response = $this->prepare_item_for_response( $attachment, $request );
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$response = rest_ensure_response( $response );
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/* This action is documented in lib/endpoints/class-wp-rest-attachments-controller.php */
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do_action( 'rest_insert_attachment', $data, $request, false );
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return $response;
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}
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/**
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* Prepare a single attachment for create or update.
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*
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* @param WP_REST_Request $request Request object.
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* @return WP_Error|stdClass $prepared_attachment Post object.
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*/
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protected function prepare_item_for_database( $request ) {
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$prepared_attachment = parent::prepare_item_for_database( $request );
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if ( isset( $request['caption'] ) ) {
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$prepared_attachment->post_excerpt = $request['caption'];
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}
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if ( isset( $request['description'] ) ) {
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$prepared_attachment->post_content = $request['description'];
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}
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if ( isset( $request['post'] ) ) {
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$prepared_attachment->post_parent = (int) $request['post'];
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}
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return $prepared_attachment;
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}
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/**
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* Prepare a single attachment output for response.
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*
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* @param WP_Post $post Post object.
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* @param WP_REST_Request $request Request object.
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* @return WP_REST_Response Response object.
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*/
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public function prepare_item_for_response( $post, $request ) {
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$response = parent::prepare_item_for_response( $post, $request );
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$data = $response->get_data();
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$data['alt_text'] = get_post_meta( $post->ID, '_wp_attachment_image_alt', true );
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$data['caption'] = $post->post_excerpt;
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$data['description'] = $post->post_content;
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$data['media_type'] = wp_attachment_is_image( $post->ID ) ? 'image' : 'file';
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$data['mime_type'] = $post->post_mime_type;
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$data['media_details'] = wp_get_attachment_metadata( $post->ID );
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$data['post'] = ! empty( $post->post_parent ) ? (int) $post->post_parent : null;
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$data['source_url'] = wp_get_attachment_url( $post->ID );
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// Ensure empty details is an empty object.
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if ( empty( $data['media_details'] ) ) {
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$data['media_details'] = new stdClass;
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} elseif ( ! empty( $data['media_details']['sizes'] ) ) {
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foreach ( $data['media_details']['sizes'] as $size => &$size_data ) {
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if ( isset( $size_data['mime-type'] ) ) {
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$size_data['mime_type'] = $size_data['mime-type'];
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unset( $size_data['mime-type'] );
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}
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// Use the same method image_downsize() does.
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$image_src = wp_get_attachment_image_src( $post->ID, $size );
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if ( ! $image_src ) {
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continue;
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}
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$size_data['source_url'] = $image_src[0];
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}
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$full_src = wp_get_attachment_image_src( $post->ID, 'full' );
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if ( ! empty( $full_src ) ) {
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$data['media_details']['sizes']['full'] = array(
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'file' => wp_basename( $full_src[0] ),
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'width' => $full_src[1],
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'height' => $full_src[2],
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'mime_type' => $post->post_mime_type,
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'source_url' => $full_src[0],
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);
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}
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} else {
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$data['media_details']['sizes'] = new stdClass;
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}
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$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
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$data = $this->filter_response_by_context( $data, $context );
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// Wrap the data in a response object.
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$response = rest_ensure_response( $data );
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$response->add_links( $this->prepare_links( $post ) );
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/**
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* Filter an attachment returned from the API.
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*
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* Allows modification of the attachment right before it is returned.
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*
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* @param WP_REST_Response $response The response object.
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* @param WP_Post $post The original attachment post.
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* @param WP_REST_Request $request Request used to generate the response.
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*/
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return apply_filters( 'rest_prepare_attachment', $response, $post, $request );
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}
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/**
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* Get the Attachment's schema, conforming to JSON Schema.
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*
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* @return array Item schema as an array.
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*/
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public function get_item_schema() {
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$schema = parent::get_item_schema();
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$schema['properties']['alt_text'] = array(
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'description' => __( 'Alternative text to display when resource is not displayed.' ),
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'type' => 'string',
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'context' => array( 'view', 'edit', 'embed' ),
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'arg_options' => array(
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'sanitize_callback' => 'sanitize_text_field',
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),
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);
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$schema['properties']['caption'] = array(
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'description' => __( 'The caption for the resource.' ),
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'type' => 'string',
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'context' => array( 'view', 'edit' ),
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'arg_options' => array(
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'sanitize_callback' => 'wp_filter_post_kses',
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),
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);
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$schema['properties']['description'] = array(
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'description' => __( 'The description for the resource.' ),
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'type' => 'string',
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'context' => array( 'view', 'edit' ),
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'arg_options' => array(
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'sanitize_callback' => 'wp_filter_post_kses',
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),
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);
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$schema['properties']['media_type'] = array(
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'description' => __( 'Type of resource.' ),
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'type' => 'string',
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'enum' => array( 'image', 'file' ),
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'context' => array( 'view', 'edit', 'embed' ),
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'readonly' => true,
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);
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$schema['properties']['mime_type'] = array(
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'description' => __( 'MIME type of resource.' ),
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'type' => 'string',
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'context' => array( 'view', 'edit', 'embed' ),
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'readonly' => true,
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);
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$schema['properties']['media_details'] = array(
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'description' => __( 'Details about the resource file, specific to its type.' ),
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'type' => 'object',
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'context' => array( 'view', 'edit', 'embed' ),
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'readonly' => true,
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);
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$schema['properties']['post'] = array(
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'description' => __( 'The id for the associated post of the resource.' ),
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'type' => 'integer',
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'context' => array( 'view', 'edit' ),
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);
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$schema['properties']['source_url'] = array(
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'description' => __( 'URL to the original resource file.' ),
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'type' => 'string',
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'format' => 'uri',
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'context' => array( 'view', 'edit', 'embed' ),
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'readonly' => true,
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);
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return $schema;
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}
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/**
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* Handle an upload via raw POST data.
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*
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* @param array $data Supplied file data.
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* @param array $headers HTTP headers from the request.
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* @return array|WP_Error Data from {@see wp_handle_sideload()}.
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*/
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protected function upload_from_data( $data, $headers ) {
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if ( empty( $data ) ) {
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return new WP_Error( 'rest_upload_no_data', __( 'No data supplied.' ), array( 'status' => 400 ) );
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}
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if ( empty( $headers['content_type'] ) ) {
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return new WP_Error( 'rest_upload_no_content_type', __( 'No Content-Type supplied.' ), array( 'status' => 400 ) );
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}
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if ( empty( $headers['content_disposition'] ) ) {
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return new WP_Error( 'rest_upload_no_content_disposition', __( 'No Content-Disposition supplied.' ), array( 'status' => 400 ) );
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}
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$filename = self::get_filename_from_disposition( $headers['content_disposition'] );
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if ( empty( $filename ) ) {
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return new WP_Error( 'rest_upload_invalid_disposition', __( 'Invalid Content-Disposition supplied. Content-Disposition needs to be formatted as `attachment; filename="image.png"` or similar.' ), array( 'status' => 400 ) );
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}
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if ( ! empty( $headers['content_md5'] ) ) {
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$content_md5 = array_shift( $headers['content_md5'] );
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$expected = trim( $content_md5 );
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$actual = md5( $data );
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if ( $expected !== $actual ) {
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return new WP_Error( 'rest_upload_hash_mismatch', __( 'Content hash did not match expected.' ), array( 'status' => 412 ) );
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}
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}
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// Get the content-type.
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$type = array_shift( $headers['content_type'] );
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/** Include admin functions to get access to wp_tempnam() and wp_handle_sideload() */
|
|
require_once ABSPATH . 'wp-admin/includes/admin.php';
|
|
|
|
// Save the file.
|
|
$tmpfname = wp_tempnam( $filename );
|
|
|
|
$fp = fopen( $tmpfname, 'w+' );
|
|
|
|
if ( ! $fp ) {
|
|
return new WP_Error( 'rest_upload_file_error', __( 'Could not open file handle.' ), array( 'status' => 500 ) );
|
|
}
|
|
|
|
fwrite( $fp, $data );
|
|
fclose( $fp );
|
|
|
|
// Now, sideload it in.
|
|
$file_data = array(
|
|
'error' => null,
|
|
'tmp_name' => $tmpfname,
|
|
'name' => $filename,
|
|
'type' => $type,
|
|
);
|
|
$overrides = array(
|
|
'test_form' => false,
|
|
);
|
|
$sideloaded = wp_handle_sideload( $file_data, $overrides );
|
|
|
|
if ( isset( $sideloaded['error'] ) ) {
|
|
// @codingStandardsIgnoreStart
|
|
@unlink( $tmpfname );
|
|
// @codingStandardsIgnoreEnd
|
|
return new WP_Error( 'rest_upload_sideload_error', $sideloaded['error'], array( 'status' => 500 ) );
|
|
}
|
|
|
|
return $sideloaded;
|
|
}
|
|
|
|
/**
|
|
* Parse filename from a Content-Disposition header value.
|
|
*
|
|
* As per RFC6266:
|
|
*
|
|
* content-disposition = "Content-Disposition" ":"
|
|
* disposition-type *( ";" disposition-parm )
|
|
*
|
|
* disposition-type = "inline" | "attachment" | disp-ext-type
|
|
* ; case-insensitive
|
|
* disp-ext-type = token
|
|
*
|
|
* disposition-parm = filename-parm | disp-ext-parm
|
|
*
|
|
* filename-parm = "filename" "=" value
|
|
* | "filename*" "=" ext-value
|
|
*
|
|
* disp-ext-parm = token "=" value
|
|
* | ext-token "=" ext-value
|
|
* ext-token = <the characters in token, followed by "*">
|
|
*
|
|
* @see http://tools.ietf.org/html/rfc2388
|
|
* @see http://tools.ietf.org/html/rfc6266
|
|
*
|
|
* @param string[] $disposition_header List of Content-Disposition header values.
|
|
* @return string|null Filename if available, or null if not found.
|
|
*/
|
|
public static function get_filename_from_disposition( $disposition_header ) {
|
|
// Get the filename.
|
|
$filename = null;
|
|
|
|
foreach ( $disposition_header as $value ) {
|
|
$value = trim( $value );
|
|
|
|
if ( strpos( $value, ';' ) === false ) {
|
|
continue;
|
|
}
|
|
|
|
list( $type, $attr_parts ) = explode( ';', $value, 2 );
|
|
$attr_parts = explode( ';', $attr_parts );
|
|
$attributes = array();
|
|
foreach ( $attr_parts as $part ) {
|
|
if ( strpos( $part, '=' ) === false ) {
|
|
continue;
|
|
}
|
|
|
|
list( $key, $value ) = explode( '=', $part, 2 );
|
|
$attributes[ trim( $key ) ] = trim( $value );
|
|
}
|
|
|
|
if ( empty( $attributes['filename'] ) ) {
|
|
continue;
|
|
}
|
|
|
|
$filename = trim( $attributes['filename'] );
|
|
|
|
// Unquote quoted filename, but after trimming.
|
|
if ( substr( $filename, 0, 1 ) === '"' && substr( $filename, -1, 1 ) === '"' ) {
|
|
$filename = substr( $filename, 1, -1 );
|
|
}
|
|
}
|
|
|
|
return $filename;
|
|
}
|
|
|
|
/**
|
|
* Get the query params for collections of attachments.
|
|
*
|
|
* @return array Query parameters for the attachment collection as an array.
|
|
*/
|
|
public function get_collection_params() {
|
|
$params = parent::get_collection_params();
|
|
$params['status']['default'] = 'inherit';
|
|
$params['status']['enum'] = array( 'inherit', 'private', 'trash' );
|
|
$media_types = $this->get_media_types();
|
|
$params['media_type'] = array(
|
|
'default' => null,
|
|
'description' => __( 'Limit result set to attachments of a particular media type.' ),
|
|
'type' => 'string',
|
|
'enum' => array_keys( $media_types ),
|
|
'validate_callback' => 'rest_validate_request_arg',
|
|
);
|
|
$params['mime_type'] = array(
|
|
'default' => null,
|
|
'description' => __( 'Limit result set to attachments of a particular MIME type.' ),
|
|
'type' => 'string',
|
|
);
|
|
return $params;
|
|
}
|
|
|
|
/**
|
|
* Validate whether the user can query private statuses
|
|
*
|
|
* @param mixed $value Status value.
|
|
* @param WP_REST_Request $request Request object.
|
|
* @param string $parameter Additional parameter to pass to validation.
|
|
* @return WP_Error|boolean Boolean true if the user may query, WP_Error if not.
|
|
*/
|
|
public function validate_user_can_query_private_statuses( $value, $request, $parameter ) {
|
|
if ( 'inherit' === $value ) {
|
|
return true;
|
|
}
|
|
return parent::validate_user_can_query_private_statuses( $value, $request, $parameter );
|
|
}
|
|
|
|
/**
|
|
* Handle an upload via multipart/form-data ($_FILES).
|
|
*
|
|
* @param array $files Data from $_FILES.
|
|
* @param array $headers HTTP headers from the request.
|
|
* @return array|WP_Error Data from {@see wp_handle_upload()}.
|
|
*/
|
|
protected function upload_from_file( $files, $headers ) {
|
|
if ( empty( $files ) ) {
|
|
return new WP_Error( 'rest_upload_no_data', __( 'No data supplied.' ), array( 'status' => 400 ) );
|
|
}
|
|
|
|
// Verify hash, if given.
|
|
if ( ! empty( $headers['content_md5'] ) ) {
|
|
$content_md5 = array_shift( $headers['content_md5'] );
|
|
$expected = trim( $content_md5 );
|
|
$actual = md5_file( $files['file']['tmp_name'] );
|
|
if ( $expected !== $actual ) {
|
|
return new WP_Error( 'rest_upload_hash_mismatch', __( 'Content hash did not match expected.' ), array( 'status' => 412 ) );
|
|
}
|
|
}
|
|
|
|
// Pass off to WP to handle the actual upload.
|
|
$overrides = array(
|
|
'test_form' => false,
|
|
);
|
|
// Bypasses is_uploaded_file() when running unit tests.
|
|
if ( defined( 'DIR_TESTDATA' ) && DIR_TESTDATA ) {
|
|
$overrides['action'] = 'wp_handle_mock_upload';
|
|
}
|
|
|
|
// Include admin functions to get access to wp_handle_upload().
|
|
require_once ABSPATH . 'wp-admin/includes/admin.php';
|
|
$file = wp_handle_upload( $files['file'], $overrides );
|
|
|
|
if ( isset( $file['error'] ) ) {
|
|
return new WP_Error( 'rest_upload_unknown_error', $file['error'], array( 'status' => 500 ) );
|
|
}
|
|
|
|
return $file;
|
|
}
|
|
|
|
/**
|
|
* Get the supported media types.
|
|
*
|
|
* Media types are considered the MIME type category.
|
|
*
|
|
* @return array
|
|
*/
|
|
protected function get_media_types() {
|
|
$media_types = array();
|
|
foreach ( get_allowed_mime_types() as $mime_type ) {
|
|
$parts = explode( '/', $mime_type );
|
|
if ( ! isset( $media_types[ $parts[0] ] ) ) {
|
|
$media_types[ $parts[0] ] = array();
|
|
}
|
|
$media_types[ $parts[0] ][] = $mime_type;
|
|
}
|
|
return $media_types;
|
|
}
|
|
|
|
}
|