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/wp-admin/includes/ -> post.php (source)

   1  <?php
   2  /**
   3   * WordPress Post Administration API.
   4   *
   5   * @package WordPress
   6   * @subpackage Administration
   7   */
   8  
   9  /**
  10   * Renames `$_POST` data from form names to DB post columns.
  11   *
  12   * Manipulates `$_POST` directly.
  13   *
  14   * @since 2.6.0
  15   *
  16   * @param bool       $update    Whether the post already exists.
  17   * @param array|null $post_data Optional. The array of post data to process.
  18   *                              Defaults to the `$_POST` superglobal.
  19   * @return array|WP_Error Array of post data on success, WP_Error on failure.
  20   */
  21  function _wp_translate_postdata( $update = false, $post_data = null ) {
  22  
  23      if ( empty( $post_data ) ) {
  24          $post_data = &$_POST;
  25      }
  26  
  27      if ( $update ) {
  28          $post_data['ID'] = (int) $post_data['post_ID'];
  29      }
  30  
  31      $ptype = get_post_type_object( $post_data['post_type'] );
  32  
  33      if ( $update && ! current_user_can( 'edit_post', $post_data['ID'] ) ) {
  34          if ( 'page' === $post_data['post_type'] ) {
  35              return new WP_Error( 'edit_others_pages', __( 'Sorry, you are not allowed to edit pages as this user.' ) );
  36          } else {
  37              return new WP_Error( 'edit_others_posts', __( 'Sorry, you are not allowed to edit posts as this user.' ) );
  38          }
  39      } elseif ( ! $update && ! current_user_can( $ptype->cap->create_posts ) ) {
  40          if ( 'page' === $post_data['post_type'] ) {
  41              return new WP_Error( 'edit_others_pages', __( 'Sorry, you are not allowed to create pages as this user.' ) );
  42          } else {
  43              return new WP_Error( 'edit_others_posts', __( 'Sorry, you are not allowed to create posts as this user.' ) );
  44          }
  45      }
  46  
  47      if ( isset( $post_data['content'] ) ) {
  48          $post_data['post_content'] = $post_data['content'];
  49      }
  50  
  51      if ( isset( $post_data['excerpt'] ) ) {
  52          $post_data['post_excerpt'] = $post_data['excerpt'];
  53      }
  54  
  55      if ( isset( $post_data['parent_id'] ) ) {
  56          $post_data['post_parent'] = (int) $post_data['parent_id'];
  57      }
  58  
  59      if ( isset( $post_data['trackback_url'] ) ) {
  60          $post_data['to_ping'] = $post_data['trackback_url'];
  61      }
  62  
  63      $post_data['user_ID'] = get_current_user_id();
  64  
  65      if ( ! empty( $post_data['post_author_override'] ) ) {
  66          $post_data['post_author'] = (int) $post_data['post_author_override'];
  67      } else {
  68          if ( ! empty( $post_data['post_author'] ) ) {
  69              $post_data['post_author'] = (int) $post_data['post_author'];
  70          } else {
  71              $post_data['post_author'] = (int) $post_data['user_ID'];
  72          }
  73      }
  74  
  75      if ( isset( $post_data['user_ID'] ) && ( $post_data['post_author'] != $post_data['user_ID'] )
  76          && ! current_user_can( $ptype->cap->edit_others_posts ) ) {
  77  
  78          if ( $update ) {
  79              if ( 'page' === $post_data['post_type'] ) {
  80                  return new WP_Error( 'edit_others_pages', __( 'Sorry, you are not allowed to edit pages as this user.' ) );
  81              } else {
  82                  return new WP_Error( 'edit_others_posts', __( 'Sorry, you are not allowed to edit posts as this user.' ) );
  83              }
  84          } else {
  85              if ( 'page' === $post_data['post_type'] ) {
  86                  return new WP_Error( 'edit_others_pages', __( 'Sorry, you are not allowed to create pages as this user.' ) );
  87              } else {
  88                  return new WP_Error( 'edit_others_posts', __( 'Sorry, you are not allowed to create posts as this user.' ) );
  89              }
  90          }
  91      }
  92  
  93      if ( ! empty( $post_data['post_status'] ) ) {
  94          $post_data['post_status'] = sanitize_key( $post_data['post_status'] );
  95  
  96          // No longer an auto-draft.
  97          if ( 'auto-draft' === $post_data['post_status'] ) {
  98              $post_data['post_status'] = 'draft';
  99          }
 100  
 101          if ( ! get_post_status_object( $post_data['post_status'] ) ) {
 102              unset( $post_data['post_status'] );
 103          }
 104      }
 105  
 106      // What to do based on which button they pressed.
 107      if ( isset( $post_data['saveasdraft'] ) && '' !== $post_data['saveasdraft'] ) {
 108          $post_data['post_status'] = 'draft';
 109      }
 110      if ( isset( $post_data['saveasprivate'] ) && '' !== $post_data['saveasprivate'] ) {
 111          $post_data['post_status'] = 'private';
 112      }
 113      if ( isset( $post_data['publish'] ) && ( '' !== $post_data['publish'] )
 114          && ( ! isset( $post_data['post_status'] ) || 'private' !== $post_data['post_status'] )
 115      ) {
 116          $post_data['post_status'] = 'publish';
 117      }
 118      if ( isset( $post_data['advanced'] ) && '' !== $post_data['advanced'] ) {
 119          $post_data['post_status'] = 'draft';
 120      }
 121      if ( isset( $post_data['pending'] ) && '' !== $post_data['pending'] ) {
 122          $post_data['post_status'] = 'pending';
 123      }
 124  
 125      if ( isset( $post_data['ID'] ) ) {
 126          $post_id = $post_data['ID'];
 127      } else {
 128          $post_id = false;
 129      }
 130      $previous_status = $post_id ? get_post_field( 'post_status', $post_id ) : false;
 131  
 132      if ( isset( $post_data['post_status'] ) && 'private' === $post_data['post_status'] && ! current_user_can( $ptype->cap->publish_posts ) ) {
 133          $post_data['post_status'] = $previous_status ? $previous_status : 'pending';
 134      }
 135  
 136      $published_statuses = array( 'publish', 'future' );
 137  
 138      // Posts 'submitted for approval' are submitted to $_POST the same as if they were being published.
 139      // Change status from 'publish' to 'pending' if user lacks permissions to publish or to resave published posts.
 140      if ( isset( $post_data['post_status'] )
 141          && ( in_array( $post_data['post_status'], $published_statuses, true )
 142          && ! current_user_can( $ptype->cap->publish_posts ) )
 143      ) {
 144          if ( ! in_array( $previous_status, $published_statuses, true ) || ! current_user_can( 'edit_post', $post_id ) ) {
 145              $post_data['post_status'] = 'pending';
 146          }
 147      }
 148  
 149      if ( ! isset( $post_data['post_status'] ) ) {
 150          $post_data['post_status'] = 'auto-draft' === $previous_status ? 'draft' : $previous_status;
 151      }
 152  
 153      if ( isset( $post_data['post_password'] ) && ! current_user_can( $ptype->cap->publish_posts ) ) {
 154          unset( $post_data['post_password'] );
 155      }
 156  
 157      if ( ! isset( $post_data['comment_status'] ) ) {
 158          $post_data['comment_status'] = 'closed';
 159      }
 160  
 161      if ( ! isset( $post_data['ping_status'] ) ) {
 162          $post_data['ping_status'] = 'closed';
 163      }
 164  
 165      foreach ( array( 'aa', 'mm', 'jj', 'hh', 'mn' ) as $timeunit ) {
 166          if ( ! empty( $post_data[ 'hidden_' . $timeunit ] ) && $post_data[ 'hidden_' . $timeunit ] != $post_data[ $timeunit ] ) {
 167              $post_data['edit_date'] = '1';
 168              break;
 169          }
 170      }
 171  
 172      if ( ! empty( $post_data['edit_date'] ) ) {
 173          $aa = $post_data['aa'];
 174          $mm = $post_data['mm'];
 175          $jj = $post_data['jj'];
 176          $hh = $post_data['hh'];
 177          $mn = $post_data['mn'];
 178          $ss = $post_data['ss'];
 179          $aa = ( $aa <= 0 ) ? gmdate( 'Y' ) : $aa;
 180          $mm = ( $mm <= 0 ) ? gmdate( 'n' ) : $mm;
 181          $jj = ( $jj > 31 ) ? 31 : $jj;
 182          $jj = ( $jj <= 0 ) ? gmdate( 'j' ) : $jj;
 183          $hh = ( $hh > 23 ) ? $hh - 24 : $hh;
 184          $mn = ( $mn > 59 ) ? $mn - 60 : $mn;
 185          $ss = ( $ss > 59 ) ? $ss - 60 : $ss;
 186  
 187          $post_data['post_date'] = sprintf( '%04d-%02d-%02d %02d:%02d:%02d', $aa, $mm, $jj, $hh, $mn, $ss );
 188  
 189          $valid_date = wp_checkdate( $mm, $jj, $aa, $post_data['post_date'] );
 190          if ( ! $valid_date ) {
 191              return new WP_Error( 'invalid_date', __( 'Invalid date.' ) );
 192          }
 193  
 194          $post_data['post_date_gmt'] = get_gmt_from_date( $post_data['post_date'] );
 195      }
 196  
 197      if ( isset( $post_data['post_category'] ) ) {
 198          $category_object = get_taxonomy( 'category' );
 199          if ( ! current_user_can( $category_object->cap->assign_terms ) ) {
 200              unset( $post_data['post_category'] );
 201          }
 202      }
 203  
 204      return $post_data;
 205  }
 206  
 207  /**
 208   * Returns only allowed post data fields.
 209   *
 210   * @since 5.0.1
 211   *
 212   * @param array|WP_Error|null $post_data The array of post data to process, or an error object.
 213   *                                       Defaults to the `$_POST` superglobal.
 214   * @return array|WP_Error Array of post data on success, WP_Error on failure.
 215   */
 216  function _wp_get_allowed_postdata( $post_data = null ) {
 217      if ( empty( $post_data ) ) {
 218          $post_data = $_POST;
 219      }
 220  
 221      // Pass through errors.
 222      if ( is_wp_error( $post_data ) ) {
 223          return $post_data;
 224      }
 225  
 226      return array_diff_key( $post_data, array_flip( array( 'meta_input', 'file', 'guid' ) ) );
 227  }
 228  
 229  /**
 230   * Updates an existing post with values provided in `$_POST`.
 231   *
 232   * If post data is passed as an argument, it is treated as an array of data
 233   * keyed appropriately for turning into a post object.
 234   *
 235   * If post data is not passed, the `$_POST` global variable is used instead.
 236   *
 237   * @since 1.5.0
 238   *
 239   * @global wpdb $wpdb WordPress database abstraction object.
 240   *
 241   * @param array|null $post_data Optional. The array of post data to process.
 242   *                              Defaults to the `$_POST` superglobal.
 243   * @return int Post ID.
 244   */
 245  function edit_post( $post_data = null ) {
 246      global $wpdb;
 247  
 248      if ( empty( $post_data ) ) {
 249          $post_data = &$_POST;
 250      }
 251  
 252      // Clear out any data in internal vars.
 253      unset( $post_data['filter'] );
 254  
 255      $post_ID = (int) $post_data['post_ID'];
 256      $post    = get_post( $post_ID );
 257  
 258      $post_data['post_type']      = $post->post_type;
 259      $post_data['post_mime_type'] = $post->post_mime_type;
 260  
 261      if ( ! empty( $post_data['post_status'] ) ) {
 262          $post_data['post_status'] = sanitize_key( $post_data['post_status'] );
 263  
 264          if ( 'inherit' === $post_data['post_status'] ) {
 265              unset( $post_data['post_status'] );
 266          }
 267      }
 268  
 269      $ptype = get_post_type_object( $post_data['post_type'] );
 270      if ( ! current_user_can( 'edit_post', $post_ID ) ) {
 271          if ( 'page' === $post_data['post_type'] ) {
 272              wp_die( __( 'Sorry, you are not allowed to edit this page.' ) );
 273          } else {
 274              wp_die( __( 'Sorry, you are not allowed to edit this post.' ) );
 275          }
 276      }
 277  
 278      if ( post_type_supports( $ptype->name, 'revisions' ) ) {
 279          $revisions = wp_get_post_revisions(
 280              $post_ID,
 281              array(
 282                  'order'          => 'ASC',
 283                  'posts_per_page' => 1,
 284              )
 285          );
 286          $revision  = current( $revisions );
 287  
 288          // Check if the revisions have been upgraded.
 289          if ( $revisions && _wp_get_post_revision_version( $revision ) < 1 ) {
 290              _wp_upgrade_revisions_of_post( $post, wp_get_post_revisions( $post_ID ) );
 291          }
 292      }
 293  
 294      if ( isset( $post_data['visibility'] ) ) {
 295          switch ( $post_data['visibility'] ) {
 296              case 'public':
 297                  $post_data['post_password'] = '';
 298                  break;
 299              case 'password':
 300                  unset( $post_data['sticky'] );
 301                  break;
 302              case 'private':
 303                  $post_data['post_status']   = 'private';
 304                  $post_data['post_password'] = '';
 305                  unset( $post_data['sticky'] );
 306                  break;
 307          }
 308      }
 309  
 310      $post_data = _wp_translate_postdata( true, $post_data );
 311      if ( is_wp_error( $post_data ) ) {
 312          wp_die( $post_data->get_error_message() );
 313      }
 314      $translated = _wp_get_allowed_postdata( $post_data );
 315  
 316      // Post formats.
 317      if ( isset( $post_data['post_format'] ) ) {
 318          set_post_format( $post_ID, $post_data['post_format'] );
 319      }
 320  
 321      $format_meta_urls = array( 'url', 'link_url', 'quote_source_url' );
 322      foreach ( $format_meta_urls as $format_meta_url ) {
 323          $keyed = '_format_' . $format_meta_url;
 324          if ( isset( $post_data[ $keyed ] ) ) {
 325              update_post_meta( $post_ID, $keyed, wp_slash( sanitize_url( wp_unslash( $post_data[ $keyed ] ) ) ) );
 326          }
 327      }
 328  
 329      $format_keys = array( 'quote', 'quote_source_name', 'image', 'gallery', 'audio_embed', 'video_embed' );
 330  
 331      foreach ( $format_keys as $key ) {
 332          $keyed = '_format_' . $key;
 333          if ( isset( $post_data[ $keyed ] ) ) {
 334              if ( current_user_can( 'unfiltered_html' ) ) {
 335                  update_post_meta( $post_ID, $keyed, $post_data[ $keyed ] );
 336              } else {
 337                  update_post_meta( $post_ID, $keyed, wp_filter_post_kses( $post_data[ $keyed ] ) );
 338              }
 339          }
 340      }
 341  
 342      if ( 'attachment' === $post_data['post_type'] && preg_match( '#^(audio|video)/#', $post_data['post_mime_type'] ) ) {
 343          $id3data = wp_get_attachment_metadata( $post_ID );
 344          if ( ! is_array( $id3data ) ) {
 345              $id3data = array();
 346          }
 347  
 348          foreach ( wp_get_attachment_id3_keys( $post, 'edit' ) as $key => $label ) {
 349              if ( isset( $post_data[ 'id3_' . $key ] ) ) {
 350                  $id3data[ $key ] = sanitize_text_field( wp_unslash( $post_data[ 'id3_' . $key ] ) );
 351              }
 352          }
 353          wp_update_attachment_metadata( $post_ID, $id3data );
 354      }
 355  
 356      // Meta stuff.
 357      if ( isset( $post_data['meta'] ) && $post_data['meta'] ) {
 358          foreach ( $post_data['meta'] as $key => $value ) {
 359              $meta = get_post_meta_by_id( $key );
 360              if ( ! $meta ) {
 361                  continue;
 362              }
 363              if ( $meta->post_id != $post_ID ) {
 364                  continue;
 365              }
 366              if ( is_protected_meta( $meta->meta_key, 'post' ) || ! current_user_can( 'edit_post_meta', $post_ID, $meta->meta_key ) ) {
 367                  continue;
 368              }
 369              if ( is_protected_meta( $value['key'], 'post' ) || ! current_user_can( 'edit_post_meta', $post_ID, $value['key'] ) ) {
 370                  continue;
 371              }
 372              update_meta( $key, $value['key'], $value['value'] );
 373          }
 374      }
 375  
 376      if ( isset( $post_data['deletemeta'] ) && $post_data['deletemeta'] ) {
 377          foreach ( $post_data['deletemeta'] as $key => $value ) {
 378              $meta = get_post_meta_by_id( $key );
 379              if ( ! $meta ) {
 380                  continue;
 381              }
 382              if ( $meta->post_id != $post_ID ) {
 383                  continue;
 384              }
 385              if ( is_protected_meta( $meta->meta_key, 'post' ) || ! current_user_can( 'delete_post_meta', $post_ID, $meta->meta_key ) ) {
 386                  continue;
 387              }
 388              delete_meta( $key );
 389          }
 390      }
 391  
 392      // Attachment stuff.
 393      if ( 'attachment' === $post_data['post_type'] ) {
 394          if ( isset( $post_data['_wp_attachment_image_alt'] ) ) {
 395              $image_alt = wp_unslash( $post_data['_wp_attachment_image_alt'] );
 396  
 397              if ( get_post_meta( $post_ID, '_wp_attachment_image_alt', true ) !== $image_alt ) {
 398                  $image_alt = wp_strip_all_tags( $image_alt, true );
 399  
 400                  // update_post_meta() expects slashed.
 401                  update_post_meta( $post_ID, '_wp_attachment_image_alt', wp_slash( $image_alt ) );
 402              }
 403          }
 404  
 405          $attachment_data = isset( $post_data['attachments'][ $post_ID ] ) ? $post_data['attachments'][ $post_ID ] : array();
 406  
 407          /** This filter is documented in wp-admin/includes/media.php */
 408          $translated = apply_filters( 'attachment_fields_to_save', $translated, $attachment_data );
 409      }
 410  
 411      // Convert taxonomy input to term IDs, to avoid ambiguity.
 412      if ( isset( $post_data['tax_input'] ) ) {
 413          foreach ( (array) $post_data['tax_input'] as $taxonomy => $terms ) {
 414              $tax_object = get_taxonomy( $taxonomy );
 415  
 416              if ( $tax_object && isset( $tax_object->meta_box_sanitize_cb ) ) {
 417                  $translated['tax_input'][ $taxonomy ] = call_user_func_array( $tax_object->meta_box_sanitize_cb, array( $taxonomy, $terms ) );
 418              }
 419          }
 420      }
 421  
 422      add_meta( $post_ID );
 423  
 424      update_post_meta( $post_ID, '_edit_last', get_current_user_id() );
 425  
 426      $success = wp_update_post( $translated );
 427  
 428      // If the save failed, see if we can sanity check the main fields and try again.
 429      if ( ! $success && is_callable( array( $wpdb, 'strip_invalid_text_for_column' ) ) ) {
 430          $fields = array( 'post_title', 'post_content', 'post_excerpt' );
 431  
 432          foreach ( $fields as $field ) {
 433              if ( isset( $translated[ $field ] ) ) {
 434                  $translated[ $field ] = $wpdb->strip_invalid_text_for_column( $wpdb->posts, $field, $translated[ $field ] );
 435              }
 436          }
 437  
 438          wp_update_post( $translated );
 439      }
 440  
 441      // Now that we have an ID we can fix any attachment anchor hrefs.
 442      _fix_attachment_links( $post_ID );
 443  
 444      wp_set_post_lock( $post_ID );
 445  
 446      if ( current_user_can( $ptype->cap->edit_others_posts ) && current_user_can( $ptype->cap->publish_posts ) ) {
 447          if ( ! empty( $post_data['sticky'] ) ) {
 448              stick_post( $post_ID );
 449          } else {
 450              unstick_post( $post_ID );
 451          }
 452      }
 453  
 454      return $post_ID;
 455  }
 456  
 457  /**
 458   * Processes the post data for the bulk editing of posts.
 459   *
 460   * Updates all bulk edited posts/pages, adding (but not removing) tags and
 461   * categories. Skips pages when they would be their own parent or child.
 462   *
 463   * @since 2.7.0
 464   *
 465   * @global wpdb $wpdb WordPress database abstraction object.
 466   *
 467   * @param array|null $post_data Optional. The array of post data to process.
 468   *                              Defaults to the `$_POST` superglobal.
 469   * @return array
 470   */
 471  function bulk_edit_posts( $post_data = null ) {
 472      global $wpdb;
 473  
 474      if ( empty( $post_data ) ) {
 475          $post_data = &$_POST;
 476      }
 477  
 478      if ( isset( $post_data['post_type'] ) ) {
 479          $ptype = get_post_type_object( $post_data['post_type'] );
 480      } else {
 481          $ptype = get_post_type_object( 'post' );
 482      }
 483  
 484      if ( ! current_user_can( $ptype->cap->edit_posts ) ) {
 485          if ( 'page' === $ptype->name ) {
 486              wp_die( __( 'Sorry, you are not allowed to edit pages.' ) );
 487          } else {
 488              wp_die( __( 'Sorry, you are not allowed to edit posts.' ) );
 489          }
 490      }
 491  
 492      if ( -1 == $post_data['_status'] ) {
 493          $post_data['post_status'] = null;
 494          unset( $post_data['post_status'] );
 495      } else {
 496          $post_data['post_status'] = $post_data['_status'];
 497      }
 498      unset( $post_data['_status'] );
 499  
 500      if ( ! empty( $post_data['post_status'] ) ) {
 501          $post_data['post_status'] = sanitize_key( $post_data['post_status'] );
 502  
 503          if ( 'inherit' === $post_data['post_status'] ) {
 504              unset( $post_data['post_status'] );
 505          }
 506      }
 507  
 508      $post_IDs = array_map( 'intval', (array) $post_data['post'] );
 509  
 510      $reset = array(
 511          'post_author',
 512          'post_status',
 513          'post_password',
 514          'post_parent',
 515          'page_template',
 516          'comment_status',
 517          'ping_status',
 518          'keep_private',
 519          'tax_input',
 520          'post_category',
 521          'sticky',
 522          'post_format',
 523      );
 524  
 525      foreach ( $reset as $field ) {
 526          if ( isset( $post_data[ $field ] ) && ( '' === $post_data[ $field ] || -1 == $post_data[ $field ] ) ) {
 527              unset( $post_data[ $field ] );
 528          }
 529      }
 530  
 531      if ( isset( $post_data['post_category'] ) ) {
 532          if ( is_array( $post_data['post_category'] ) && ! empty( $post_data['post_category'] ) ) {
 533              $new_cats = array_map( 'absint', $post_data['post_category'] );
 534          } else {
 535              unset( $post_data['post_category'] );
 536          }
 537      }
 538  
 539      $tax_input = array();
 540      if ( isset( $post_data['tax_input'] ) ) {
 541          foreach ( $post_data['tax_input'] as $tax_name => $terms ) {
 542              if ( empty( $terms ) ) {
 543                  continue;
 544              }
 545              if ( is_taxonomy_hierarchical( $tax_name ) ) {
 546                  $tax_input[ $tax_name ] = array_map( 'absint', $terms );
 547              } else {
 548                  $comma = _x( ',', 'tag delimiter' );
 549                  if ( ',' !== $comma ) {
 550                      $terms = str_replace( $comma, ',', $terms );
 551                  }
 552                  $tax_input[ $tax_name ] = explode( ',', trim( $terms, " \n\t\r\0\x0B," ) );
 553              }
 554          }
 555      }
 556  
 557      if ( isset( $post_data['post_parent'] ) && (int) $post_data['post_parent'] ) {
 558          $parent   = (int) $post_data['post_parent'];
 559          $pages    = $wpdb->get_results( "SELECT ID, post_parent FROM $wpdb->posts WHERE post_type = 'page'" );
 560          $children = array();
 561  
 562          for ( $i = 0; $i < 50 && $parent > 0; $i++ ) {
 563              $children[] = $parent;
 564  
 565              foreach ( $pages as $page ) {
 566                  if ( (int) $page->ID === $parent ) {
 567                      $parent = (int) $page->post_parent;
 568                      break;
 569                  }
 570              }
 571          }
 572      }
 573  
 574      $updated          = array();
 575      $skipped          = array();
 576      $locked           = array();
 577      $shared_post_data = $post_data;
 578  
 579      foreach ( $post_IDs as $post_ID ) {
 580          // Start with fresh post data with each iteration.
 581          $post_data = $shared_post_data;
 582  
 583          $post_type_object = get_post_type_object( get_post_type( $post_ID ) );
 584  
 585          if ( ! isset( $post_type_object )
 586              || ( isset( $children ) && in_array( $post_ID, $children, true ) )
 587              || ! current_user_can( 'edit_post', $post_ID )
 588          ) {
 589              $skipped[] = $post_ID;
 590              continue;
 591          }
 592  
 593          if ( wp_check_post_lock( $post_ID ) ) {
 594              $locked[] = $post_ID;
 595              continue;
 596          }
 597  
 598          $post      = get_post( $post_ID );
 599          $tax_names = get_object_taxonomies( $post );
 600  
 601          foreach ( $tax_names as $tax_name ) {
 602              $taxonomy_obj = get_taxonomy( $tax_name );
 603  
 604              if ( ! $taxonomy_obj->show_in_quick_edit ) {
 605                  continue;
 606              }
 607  
 608              if ( isset( $tax_input[ $tax_name ] ) && current_user_can( $taxonomy_obj->cap->assign_terms ) ) {
 609                  $new_terms = $tax_input[ $tax_name ];
 610              } else {
 611                  $new_terms = array();
 612              }
 613  
 614              if ( $taxonomy_obj->hierarchical ) {
 615                  $current_terms = (array) wp_get_object_terms( $post_ID, $tax_name, array( 'fields' => 'ids' ) );
 616              } else {
 617                  $current_terms = (array) wp_get_object_terms( $post_ID, $tax_name, array( 'fields' => 'names' ) );
 618              }
 619  
 620              $post_data['tax_input'][ $tax_name ] = array_merge( $current_terms, $new_terms );
 621          }
 622  
 623          if ( isset( $new_cats ) && in_array( 'category', $tax_names, true ) ) {
 624              $cats                       = (array) wp_get_post_categories( $post_ID );
 625              $post_data['post_category'] = array_unique( array_merge( $cats, $new_cats ) );
 626              unset( $post_data['tax_input']['category'] );
 627          }
 628  
 629          $post_data['post_ID']        = $post_ID;
 630          $post_data['post_type']      = $post->post_type;
 631          $post_data['post_mime_type'] = $post->post_mime_type;
 632  
 633          foreach ( array( 'comment_status', 'ping_status', 'post_author' ) as $field ) {
 634              if ( ! isset( $post_data[ $field ] ) ) {
 635                  $post_data[ $field ] = $post->$field;
 636              }
 637          }
 638  
 639          $post_data = _wp_translate_postdata( true, $post_data );
 640          if ( is_wp_error( $post_data ) ) {
 641              $skipped[] = $post_ID;
 642              continue;
 643          }
 644          $post_data = _wp_get_allowed_postdata( $post_data );
 645  
 646          if ( isset( $shared_post_data['post_format'] ) ) {
 647              set_post_format( $post_ID, $shared_post_data['post_format'] );
 648          }
 649  
 650          // Prevent wp_insert_post() from overwriting post format with the old data.
 651          unset( $post_data['tax_input']['post_format'] );
 652  
 653          $post_id = wp_update_post( $post_data );
 654          update_post_meta( $post_id, '_edit_last', get_current_user_id() );
 655          $updated[] = $post_id;
 656  
 657          if ( isset( $post_data['sticky'] ) && current_user_can( $ptype->cap->edit_others_posts ) ) {
 658              if ( 'sticky' === $post_data['sticky'] ) {
 659                  stick_post( $post_ID );
 660              } else {
 661                  unstick_post( $post_ID );
 662              }
 663          }
 664      }
 665  
 666      return array(
 667          'updated' => $updated,
 668          'skipped' => $skipped,
 669          'locked'  => $locked,
 670      );
 671  }
 672  
 673  /**
 674   * Returns default post information to use when populating the "Write Post" form.
 675   *
 676   * @since 2.0.0
 677   *
 678   * @param string $post_type    Optional. A post type string. Default 'post'.
 679   * @param bool   $create_in_db Optional. Whether to insert the post into database. Default false.
 680   * @return WP_Post Post object containing all the default post data as attributes
 681   */
 682  function get_default_post_to_edit( $post_type = 'post', $create_in_db = false ) {
 683      $post_title = '';
 684      if ( ! empty( $_REQUEST['post_title'] ) ) {
 685          $post_title = esc_html( wp_unslash( $_REQUEST['post_title'] ) );
 686      }
 687  
 688      $post_content = '';
 689      if ( ! empty( $_REQUEST['content'] ) ) {
 690          $post_content = esc_html( wp_unslash( $_REQUEST['content'] ) );
 691      }
 692  
 693      $post_excerpt = '';
 694      if ( ! empty( $_REQUEST['excerpt'] ) ) {
 695          $post_excerpt = esc_html( wp_unslash( $_REQUEST['excerpt'] ) );
 696      }
 697  
 698      if ( $create_in_db ) {
 699          $post_id = wp_insert_post(
 700              array(
 701                  'post_title'  => __( 'Auto Draft' ),
 702                  'post_type'   => $post_type,
 703                  'post_status' => 'auto-draft',
 704              ),
 705              false,
 706              false
 707          );
 708          $post    = get_post( $post_id );
 709          if ( current_theme_supports( 'post-formats' ) && post_type_supports( $post->post_type, 'post-formats' ) && get_option( 'default_post_format' ) ) {
 710              set_post_format( $post, get_option( 'default_post_format' ) );
 711          }
 712          wp_after_insert_post( $post, false, null );
 713  
 714          // Schedule auto-draft cleanup.
 715          if ( ! wp_next_scheduled( 'wp_scheduled_auto_draft_delete' ) ) {
 716              wp_schedule_event( time(), 'daily', 'wp_scheduled_auto_draft_delete' );
 717          }
 718      } else {
 719          $post                 = new stdClass;
 720          $post->ID             = 0;
 721          $post->post_author    = '';
 722          $post->post_date      = '';
 723          $post->post_date_gmt  = '';
 724          $post->post_password  = '';
 725          $post->post_name      = '';
 726          $post->post_type      = $post_type;
 727          $post->post_status    = 'draft';
 728          $post->to_ping        = '';
 729          $post->pinged         = '';
 730          $post->comment_status = get_default_comment_status( $post_type );
 731          $post->ping_status    = get_default_comment_status( $post_type, 'pingback' );
 732          $post->post_pingback  = get_option( 'default_pingback_flag' );
 733          $post->post_category  = get_option( 'default_category' );
 734          $post->page_template  = 'default';
 735          $post->post_parent    = 0;
 736          $post->menu_order     = 0;
 737          $post                 = new WP_Post( $post );
 738      }
 739  
 740      /**
 741       * Filters the default post content initially used in the "Write Post" form.
 742       *
 743       * @since 1.5.0
 744       *
 745       * @param string  $post_content Default post content.
 746       * @param WP_Post $post         Post object.
 747       */
 748      $post->post_content = (string) apply_filters( 'default_content', $post_content, $post );
 749  
 750      /**
 751       * Filters the default post title initially used in the "Write Post" form.
 752       *
 753       * @since 1.5.0
 754       *
 755       * @param string  $post_title Default post title.
 756       * @param WP_Post $post       Post object.
 757       */
 758      $post->post_title = (string) apply_filters( 'default_title', $post_title, $post );
 759  
 760      /**
 761       * Filters the default post excerpt initially used in the "Write Post" form.
 762       *
 763       * @since 1.5.0
 764       *
 765       * @param string  $post_excerpt Default post excerpt.
 766       * @param WP_Post $post         Post object.
 767       */
 768      $post->post_excerpt = (string) apply_filters( 'default_excerpt', $post_excerpt, $post );
 769  
 770      return $post;
 771  }
 772  
 773  /**
 774   * Determines if a post exists based on title, content, date and type.
 775   *
 776   * @since 2.0.0
 777   * @since 5.2.0 Added the `$type` parameter.
 778   * @since 5.8.0 Added the `$status` parameter.
 779   *
 780   * @global wpdb $wpdb WordPress database abstraction object.
 781   *
 782   * @param string $title   Post title.
 783   * @param string $content Optional. Post content.
 784   * @param string $date    Optional. Post date.
 785   * @param string $type    Optional. Post type.
 786   * @param string $status  Optional. Post status.
 787   * @return int Post ID if post exists, 0 otherwise.
 788   */
 789  function post_exists( $title, $content = '', $date = '', $type = '', $status = '' ) {
 790      global $wpdb;
 791  
 792      $post_title   = wp_unslash( sanitize_post_field( 'post_title', $title, 0, 'db' ) );
 793      $post_content = wp_unslash( sanitize_post_field( 'post_content', $content, 0, 'db' ) );
 794      $post_date    = wp_unslash( sanitize_post_field( 'post_date', $date, 0, 'db' ) );
 795      $post_type    = wp_unslash( sanitize_post_field( 'post_type', $type, 0, 'db' ) );
 796      $post_status  = wp_unslash( sanitize_post_field( 'post_status', $status, 0, 'db' ) );
 797  
 798      $query = "SELECT ID FROM $wpdb->posts WHERE 1=1";
 799      $args  = array();
 800  
 801      if ( ! empty( $date ) ) {
 802          $query .= ' AND post_date = %s';
 803          $args[] = $post_date;
 804      }
 805  
 806      if ( ! empty( $title ) ) {
 807          $query .= ' AND post_title = %s';
 808          $args[] = $post_title;
 809      }
 810  
 811      if ( ! empty( $content ) ) {
 812          $query .= ' AND post_content = %s';
 813          $args[] = $post_content;
 814      }
 815  
 816      if ( ! empty( $type ) ) {
 817          $query .= ' AND post_type = %s';
 818          $args[] = $post_type;
 819      }
 820  
 821      if ( ! empty( $status ) ) {
 822          $query .= ' AND post_status = %s';
 823          $args[] = $post_status;
 824      }
 825  
 826      if ( ! empty( $args ) ) {
 827          return (int) $wpdb->get_var( $wpdb->prepare( $query, $args ) );
 828      }
 829  
 830      return 0;
 831  }
 832  
 833  /**
 834   * Creates a new post from the "Write Post" form using `$_POST` information.
 835   *
 836   * @since 2.1.0
 837   *
 838   * @global WP_User $current_user
 839   *
 840   * @return int|WP_Error Post ID on success, WP_Error on failure.
 841   */
 842  function wp_write_post() {
 843      if ( isset( $_POST['post_type'] ) ) {
 844          $ptype = get_post_type_object( $_POST['post_type'] );
 845      } else {
 846          $ptype = get_post_type_object( 'post' );
 847      }
 848  
 849      if ( ! current_user_can( $ptype->cap->edit_posts ) ) {
 850          if ( 'page' === $ptype->name ) {
 851              return new WP_Error( 'edit_pages', __( 'Sorry, you are not allowed to create pages on this site.' ) );
 852          } else {
 853              return new WP_Error( 'edit_posts', __( 'Sorry, you are not allowed to create posts or drafts on this site.' ) );
 854          }
 855      }
 856  
 857      $_POST['post_mime_type'] = '';
 858  
 859      // Clear out any data in internal vars.
 860      unset( $_POST['filter'] );
 861  
 862      // Edit, don't write, if we have a post ID.
 863      if ( isset( $_POST['post_ID'] ) ) {
 864          return edit_post();
 865      }
 866  
 867      if ( isset( $_POST['visibility'] ) ) {
 868          switch ( $_POST['visibility'] ) {
 869              case 'public':
 870                  $_POST['post_password'] = '';
 871                  break;
 872              case 'password':
 873                  unset( $_POST['sticky'] );
 874                  break;
 875              case 'private':
 876                  $_POST['post_status']   = 'private';
 877                  $_POST['post_password'] = '';
 878                  unset( $_POST['sticky'] );
 879                  break;
 880          }
 881      }
 882  
 883      $translated = _wp_translate_postdata( false );
 884      if ( is_wp_error( $translated ) ) {
 885          return $translated;
 886      }
 887      $translated = _wp_get_allowed_postdata( $translated );
 888  
 889      // Create the post.
 890      $post_ID = wp_insert_post( $translated );
 891      if ( is_wp_error( $post_ID ) ) {
 892          return $post_ID;
 893      }
 894  
 895      if ( empty( $post_ID ) ) {
 896          return 0;
 897      }
 898  
 899      add_meta( $post_ID );
 900  
 901      add_post_meta( $post_ID, '_edit_last', $GLOBALS['current_user']->ID );
 902  
 903      // Now that we have an ID we can fix any attachment anchor hrefs.
 904      _fix_attachment_links( $post_ID );
 905  
 906      wp_set_post_lock( $post_ID );
 907  
 908      return $post_ID;
 909  }
 910  
 911  /**
 912   * Calls wp_write_post() and handles the errors.
 913   *
 914   * @since 2.0.0
 915   *
 916   * @return int|void Post ID on success, void on failure.
 917   */
 918  function write_post() {
 919      $result = wp_write_post();
 920      if ( is_wp_error( $result ) ) {
 921          wp_die( $result->get_error_message() );
 922      } else {
 923          return $result;
 924      }
 925  }
 926  
 927  //
 928  // Post Meta.
 929  //
 930  
 931  /**
 932   * Adds post meta data defined in the `$_POST` superglobal for a post with given ID.
 933   *
 934   * @since 1.2.0
 935   *
 936   * @param int $post_ID
 937   * @return int|bool
 938   */
 939  function add_meta( $post_ID ) {
 940      $post_ID = (int) $post_ID;
 941  
 942      $metakeyselect = isset( $_POST['metakeyselect'] ) ? wp_unslash( trim( $_POST['metakeyselect'] ) ) : '';
 943      $metakeyinput  = isset( $_POST['metakeyinput'] ) ? wp_unslash( trim( $_POST['metakeyinput'] ) ) : '';
 944      $metavalue     = isset( $_POST['metavalue'] ) ? $_POST['metavalue'] : '';
 945      if ( is_string( $metavalue ) ) {
 946          $metavalue = trim( $metavalue );
 947      }
 948  
 949      if ( ( ( '#NONE#' !== $metakeyselect ) && ! empty( $metakeyselect ) ) || ! empty( $metakeyinput ) ) {
 950          /*
 951           * We have a key/value pair. If both the select and the input
 952           * for the key have data, the input takes precedence.
 953           */
 954          if ( '#NONE#' !== $metakeyselect ) {
 955              $metakey = $metakeyselect;
 956          }
 957  
 958          if ( $metakeyinput ) {
 959              $metakey = $metakeyinput; // Default.
 960          }
 961  
 962          if ( is_protected_meta( $metakey, 'post' ) || ! current_user_can( 'add_post_meta', $post_ID, $metakey ) ) {
 963              return false;
 964          }
 965  
 966          $metakey = wp_slash( $metakey );
 967  
 968          return add_post_meta( $post_ID, $metakey, $metavalue );
 969      }
 970  
 971      return false;
 972  }
 973  
 974  /**
 975   * Deletes post meta data by meta ID.
 976   *
 977   * @since 1.2.0
 978   *
 979   * @param int $mid
 980   * @return bool
 981   */
 982  function delete_meta( $mid ) {
 983      return delete_metadata_by_mid( 'post', $mid );
 984  }
 985  
 986  /**
 987   * Returns a list of previously defined keys.
 988   *
 989   * @since 1.2.0
 990   *
 991   * @global wpdb $wpdb WordPress database abstraction object.
 992   *
 993   * @return string[] Array of meta key names.
 994   */
 995  function get_meta_keys() {
 996      global $wpdb;
 997  
 998      $keys = $wpdb->get_col(
 999          "
1000              SELECT meta_key
1001              FROM $wpdb->postmeta
1002              GROUP BY meta_key
1003              ORDER BY meta_key"
1004      );
1005  
1006      return $keys;
1007  }
1008  
1009  /**
1010   * Returns post meta data by meta ID.
1011   *
1012   * @since 2.1.0
1013   *
1014   * @param int $mid
1015   * @return object|bool
1016   */
1017  function get_post_meta_by_id( $mid ) {
1018      return get_metadata_by_mid( 'post', $mid );
1019  }
1020  
1021  /**
1022   * Returns meta data for the given post ID.
1023   *
1024   * @since 1.2.0
1025   *
1026   * @global wpdb $wpdb WordPress database abstraction object.
1027   *
1028   * @param int $postid A post ID.
1029   * @return array[] {
1030   *     Array of meta data arrays for the given post ID.
1031   *
1032   *     @type array ...$0 {
1033   *         Associative array of meta data.
1034   *
1035   *         @type string $meta_key   Meta key.
1036   *         @type mixed  $meta_value Meta value.
1037   *         @type string $meta_id    Meta ID as a numeric string.
1038   *         @type string $post_id    Post ID as a numeric string.
1039   *     }
1040   * }
1041   */
1042  function has_meta( $postid ) {
1043      global $wpdb;
1044  
1045      return $wpdb->get_results(
1046          $wpdb->prepare(
1047              "SELECT meta_key, meta_value, meta_id, post_id
1048              FROM $wpdb->postmeta WHERE post_id = %d
1049              ORDER BY meta_key,meta_id",
1050              $postid
1051          ),
1052          ARRAY_A
1053      );
1054  }
1055  
1056  /**
1057   * Updates post meta data by meta ID.
1058   *
1059   * @since 1.2.0
1060   *
1061   * @param int    $meta_id    Meta ID.
1062   * @param string $meta_key   Meta key. Expect slashed.
1063   * @param string $meta_value Meta value. Expect slashed.
1064   * @return bool
1065   */
1066  function update_meta( $meta_id, $meta_key, $meta_value ) {
1067      $meta_key   = wp_unslash( $meta_key );
1068      $meta_value = wp_unslash( $meta_value );
1069  
1070      return update_metadata_by_mid( 'post', $meta_id, $meta_value, $meta_key );
1071  }
1072  
1073  //
1074  // Private.
1075  //
1076  
1077  /**
1078   * Replaces hrefs of attachment anchors with up-to-date permalinks.
1079   *
1080   * @since 2.3.0
1081   * @access private
1082   *
1083   * @param int|object $post Post ID or post object.
1084   * @return void|int|WP_Error Void if nothing fixed. 0 or WP_Error on update failure. The post ID on update success.
1085   */
1086  function _fix_attachment_links( $post ) {
1087      $post    = get_post( $post, ARRAY_A );
1088      $content = $post['post_content'];
1089  
1090      // Don't run if no pretty permalinks or post is not published, scheduled, or privately published.
1091      if ( ! get_option( 'permalink_structure' ) || ! in_array( $post['post_status'], array( 'publish', 'future', 'private' ), true ) ) {
1092          return;
1093      }
1094  
1095      // Short if there aren't any links or no '?attachment_id=' strings (strpos cannot be zero).
1096      if ( ! strpos( $content, '?attachment_id=' ) || ! preg_match_all( '/<a ([^>]+)>[\s\S]+?<\/a>/', $content, $link_matches ) ) {
1097          return;
1098      }
1099  
1100      $site_url = get_bloginfo( 'url' );
1101      $site_url = substr( $site_url, (int) strpos( $site_url, '://' ) ); // Remove the http(s).
1102      $replace  = '';
1103  
1104      foreach ( $link_matches[1] as $key => $value ) {
1105          if ( ! strpos( $value, '?attachment_id=' ) || ! strpos( $value, 'wp-att-' )
1106              || ! preg_match( '/href=(["\'])[^"\']*\?attachment_id=(\d+)[^"\']*\\1/', $value, $url_match )
1107              || ! preg_match( '/rel=["\'][^"\']*wp-att-(\d+)/', $value, $rel_match ) ) {
1108                  continue;
1109          }
1110  
1111          $quote  = $url_match[1]; // The quote (single or double).
1112          $url_id = (int) $url_match[2];
1113          $rel_id = (int) $rel_match[1];
1114  
1115          if ( ! $url_id || ! $rel_id || $url_id != $rel_id || strpos( $url_match[0], $site_url ) === false ) {
1116              continue;
1117          }
1118  
1119          $link    = $link_matches[0][ $key ];
1120          $replace = str_replace( $url_match[0], 'href=' . $quote . get_attachment_link( $url_id ) . $quote, $link );
1121  
1122          $content = str_replace( $link, $replace, $content );
1123      }
1124  
1125      if ( $replace ) {
1126          $post['post_content'] = $content;
1127          // Escape data pulled from DB.
1128          $post = add_magic_quotes( $post );
1129  
1130          return wp_update_post( $post );
1131      }
1132  }
1133  
1134  /**
1135   * Returns all the possible statuses for a post type.
1136   *
1137   * @since 2.5.0
1138   *
1139   * @param string $type The post_type you want the statuses for. Default 'post'.
1140   * @return string[] An array of all the statuses for the supplied post type.
1141   */
1142  function get_available_post_statuses( $type = 'post' ) {
1143      $stati = wp_count_posts( $type );
1144  
1145      return array_keys( get_object_vars( $stati ) );
1146  }
1147  
1148  /**
1149   * Runs the query to fetch the posts for listing on the edit posts page.
1150   *
1151   * @since 2.5.0
1152   *
1153   * @param array|false $q Optional. Array of query variables to use to build the query.
1154   *                       Defaults to the `$_GET` superglobal.
1155   * @return array
1156   */
1157  function wp_edit_posts_query( $q = false ) {
1158      if ( false === $q ) {
1159          $q = $_GET;
1160      }
1161      $q['m']     = isset( $q['m'] ) ? (int) $q['m'] : 0;
1162      $q['cat']   = isset( $q['cat'] ) ? (int) $q['cat'] : 0;
1163      $post_stati = get_post_stati();
1164  
1165      if ( isset( $q['post_type'] ) && in_array( $q['post_type'], get_post_types(), true ) ) {
1166          $post_type = $q['post_type'];
1167      } else {
1168          $post_type = 'post';
1169      }
1170  
1171      $avail_post_stati = get_available_post_statuses( $post_type );
1172      $post_status      = '';
1173      $perm             = '';
1174  
1175      if ( isset( $q['post_status'] ) && in_array( $q['post_status'], $post_stati, true ) ) {
1176          $post_status = $q['post_status'];
1177          $perm        = 'readable';
1178      }
1179  
1180      $orderby = '';
1181  
1182      if ( isset( $q['orderby'] ) ) {
1183          $orderby = $q['orderby'];
1184      } elseif ( isset( $q['post_status'] ) && in_array( $q['post_status'], array( 'pending', 'draft' ), true ) ) {
1185          $orderby = 'modified';
1186      }
1187  
1188      $order = '';
1189  
1190      if ( isset( $q['order'] ) ) {
1191          $order = $q['order'];
1192      } elseif ( isset( $q['post_status'] ) && 'pending' === $q['post_status'] ) {
1193          $order = 'ASC';
1194      }
1195  
1196      $per_page       = "edit_{$post_type}_per_page";
1197      $posts_per_page = (int) get_user_option( $per_page );
1198      if ( empty( $posts_per_page ) || $posts_per_page < 1 ) {
1199          $posts_per_page = 20;
1200      }
1201  
1202      /**
1203       * Filters the number of items per page to show for a specific 'per_page' type.
1204       *
1205       * The dynamic portion of the hook name, `$post_type`, refers to the post type.
1206       *
1207       * Possible hook names include:
1208       *
1209       *  - `edit_post_per_page`
1210       *  - `edit_page_per_page`
1211       *  - `edit_attachment_per_page`
1212       *
1213       * @since 3.0.0
1214       *
1215       * @param int $posts_per_page Number of posts to display per page for the given post
1216       *                            type. Default 20.
1217       */
1218      $posts_per_page = apply_filters( "edit_{$post_type}_per_page", $posts_per_page );
1219  
1220      /**
1221       * Filters the number of posts displayed per page when specifically listing "posts".
1222       *
1223       * @since 2.8.0
1224       *
1225       * @param int    $posts_per_page Number of posts to be displayed. Default 20.
1226       * @param string $post_type      The post type.
1227       */
1228      $posts_per_page = apply_filters( 'edit_posts_per_page', $posts_per_page, $post_type );
1229  
1230      $query = compact( 'post_type', 'post_status', 'perm', 'order', 'orderby', 'posts_per_page' );
1231  
1232      // Hierarchical types require special args.
1233      if ( is_post_type_hierarchical( $post_type ) && empty( $orderby ) ) {
1234          $query['orderby']                = 'menu_order title';
1235          $query['order']                  = 'asc';
1236          $query['posts_per_page']         = -1;
1237          $query['posts_per_archive_page'] = -1;
1238          $query['fields']                 = 'id=>parent';
1239      }
1240  
1241      if ( ! empty( $q['show_sticky'] ) ) {
1242          $query['post__in'] = (array) get_option( 'sticky_posts' );
1243      }
1244  
1245      wp( $query );
1246  
1247      return $avail_post_stati;
1248  }
1249  
1250  /**
1251   * Returns the query variables for the current attachments request.
1252   *
1253   * @since 4.2.0
1254   *
1255   * @param array|false $q Optional. Array of query variables to use to build the query.
1256   *                       Defaults to the `$_GET` superglobal.
1257   * @return array The parsed query vars.
1258   */
1259  function wp_edit_attachments_query_vars( $q = false ) {
1260      if ( false === $q ) {
1261          $q = $_GET;
1262      }
1263      $q['m']         = isset( $q['m'] ) ? (int) $q['m'] : 0;
1264      $q['cat']       = isset( $q['cat'] ) ? (int) $q['cat'] : 0;
1265      $q['post_type'] = 'attachment';
1266      $post_type      = get_post_type_object( 'attachment' );
1267      $states         = 'inherit';
1268      if ( current_user_can( $post_type->cap->read_private_posts ) ) {
1269          $states .= ',private';
1270      }
1271  
1272      $q['post_status'] = isset( $q['status'] ) && 'trash' === $q['status'] ? 'trash' : $states;
1273      $q['post_status'] = isset( $q['attachment-filter'] ) && 'trash' === $q['attachment-filter'] ? 'trash' : $states;
1274  
1275      $media_per_page = (int) get_user_option( 'upload_per_page' );
1276      if ( empty( $media_per_page ) || $media_per_page < 1 ) {
1277          $media_per_page = 20;
1278      }
1279  
1280      /**
1281       * Filters the number of items to list per page when listing media items.
1282       *
1283       * @since 2.9.0
1284       *
1285       * @param int $media_per_page Number of media to list. Default 20.
1286       */
1287      $q['posts_per_page'] = apply_filters( 'upload_per_page', $media_per_page );
1288  
1289      $post_mime_types = get_post_mime_types();
1290      if ( isset( $q['post_mime_type'] ) && ! array_intersect( (array) $q['post_mime_type'], array_keys( $post_mime_types ) ) ) {
1291          unset( $q['post_mime_type'] );
1292      }
1293  
1294      foreach ( array_keys( $post_mime_types ) as $type ) {
1295          if ( isset( $q['attachment-filter'] ) && "post_mime_type:$type" === $q['attachment-filter'] ) {
1296              $q['post_mime_type'] = $type;
1297              break;
1298          }
1299      }
1300  
1301      if ( isset( $q['detached'] ) || ( isset( $q['attachment-filter'] ) && 'detached' === $q['attachment-filter'] ) ) {
1302          $q['post_parent'] = 0;
1303      }
1304  
1305      if ( isset( $q['mine'] ) || ( isset( $q['attachment-filter'] ) && 'mine' === $q['attachment-filter'] ) ) {
1306          $q['author'] = get_current_user_id();
1307      }
1308  
1309      // Filter query clauses to include filenames.
1310      if ( isset( $q['s'] ) ) {
1311          add_filter( 'posts_clauses', '_filter_query_attachment_filenames' );
1312      }
1313  
1314      return $q;
1315  }
1316  
1317  /**
1318   * Executes a query for attachments. An array of WP_Query arguments
1319   * can be passed in, which will override the arguments set by this function.
1320   *
1321   * @since 2.5.0
1322   *
1323   * @param array|false $q Optional. Array of query variables to use to build the query.
1324   *                       Defaults to the `$_GET` superglobal.
1325   * @return array
1326   */
1327  function wp_edit_attachments_query( $q = false ) {
1328      wp( wp_edit_attachments_query_vars( $q ) );
1329  
1330      $post_mime_types       = get_post_mime_types();
1331      $avail_post_mime_types = get_available_post_mime_types( 'attachment' );
1332  
1333      return array( $post_mime_types, $avail_post_mime_types );
1334  }
1335  
1336  /**
1337   * Returns the list of classes to be used by a meta box.
1338   *
1339   * @since 2.5.0
1340   *
1341   * @param string $box_id    Meta box ID (used in the 'id' attribute for the meta box).
1342   * @param string $screen_id The screen on which the meta box is shown.
1343   * @return string Space-separated string of class names.
1344   */
1345  function postbox_classes( $box_id, $screen_id ) {
1346      if ( isset( $_GET['edit'] ) && $_GET['edit'] == $box_id ) {
1347          $classes = array( '' );
1348      } elseif ( get_user_option( 'closedpostboxes_' . $screen_id ) ) {
1349          $closed = get_user_option( 'closedpostboxes_' . $screen_id );
1350          if ( ! is_array( $closed ) ) {
1351              $classes = array( '' );
1352          } else {
1353              $classes = in_array( $box_id, $closed, true ) ? array( 'closed' ) : array( '' );
1354          }
1355      } else {
1356          $classes = array( '' );
1357      }
1358  
1359      /**
1360       * Filters the postbox classes for a specific screen and box ID combo.
1361       *
1362       * The dynamic portions of the hook name, `$screen_id` and `$box_id`, refer to
1363       * the screen ID and meta box ID, respectively.
1364       *
1365       * @since 3.2.0
1366       *
1367       * @param string[] $classes An array of postbox classes.
1368       */
1369      $classes = apply_filters( "postbox_classes_{$screen_id}_{$box_id}", $classes );
1370  
1371      return implode( ' ', $classes );
1372  }
1373  
1374  /**
1375   * Returns a sample permalink based on the post name.
1376   *
1377   * @since 2.5.0
1378   *
1379   * @param int|WP_Post $post  Post ID or post object.
1380   * @param string|null $title Optional. Title to override the post's current title
1381   *                           when generating the post name. Default null.
1382   * @param string|null $name  Optional. Name to override the post name. Default null.
1383   * @return array {
1384   *     Array containing the sample permalink with placeholder for the post name, and the post name.
1385   *
1386   *     @type string $0 The permalink with placeholder for the post name.
1387   *     @type string $1 The post name.
1388   * }
1389   */
1390  function get_sample_permalink( $post, $title = null, $name = null ) {
1391      $post = get_post( $post );
1392  
1393      if ( ! $post ) {
1394          return array( '', '' );
1395      }
1396  
1397      $ptype = get_post_type_object( $post->post_type );
1398  
1399      $original_status = $post->post_status;
1400      $original_date   = $post->post_date;
1401      $original_name   = $post->post_name;
1402  
1403      // Hack: get_permalink() would return plain permalink for drafts, so we will fake that our post is published.
1404      if ( in_array( $post->post_status, array( 'draft', 'pending', 'future' ), true ) ) {
1405          $post->post_status = 'publish';
1406          $post->post_name   = sanitize_title( $post->post_name ? $post->post_name : $post->post_title, $post->ID );
1407      }
1408  
1409      // If the user wants to set a new name -- override the current one.
1410      // Note: if empty name is supplied -- use the title instead, see #6072.
1411      if ( ! is_null( $name ) ) {
1412          $post->post_name = sanitize_title( $name ? $name : $title, $post->ID );
1413      }
1414  
1415      $post->post_name = wp_unique_post_slug( $post->post_name, $post->ID, $post->post_status, $post->post_type, $post->post_parent );
1416  
1417      $post->filter = 'sample';
1418  
1419      $permalink = get_permalink( $post, true );
1420  
1421      // Replace custom post_type token with generic pagename token for ease of use.
1422      $permalink = str_replace( "%$post->post_type%", '%pagename%', $permalink );
1423  
1424      // Handle page hierarchy.
1425      if ( $ptype->hierarchical ) {
1426          $uri = get_page_uri( $post );
1427          if ( $uri ) {
1428              $uri = untrailingslashit( $uri );
1429              $uri = strrev( stristr( strrev( $uri ), '/' ) );
1430              $uri = untrailingslashit( $uri );
1431          }
1432  
1433          /** This filter is documented in wp-admin/edit-tag-form.php */
1434          $uri = apply_filters( 'editable_slug', $uri, $post );
1435          if ( ! empty( $uri ) ) {
1436              $uri .= '/';
1437          }
1438          $permalink = str_replace( '%pagename%', "{$uri}%pagename%", $permalink );
1439      }
1440  
1441      /** This filter is documented in wp-admin/edit-tag-form.php */
1442      $permalink         = array( $permalink, apply_filters( 'editable_slug', $post->post_name, $post ) );
1443      $post->post_status = $original_status;
1444      $post->post_date   = $original_date;
1445      $post->post_name   = $original_name;
1446      unset( $post->filter );
1447  
1448      /**
1449       * Filters the sample permalink.
1450       *
1451       * @since 4.4.0
1452       *
1453       * @param array   $permalink {
1454       *     Array containing the sample permalink with placeholder for the post name, and the post name.
1455       *
1456       *     @type string $0 The permalink with placeholder for the post name.
1457       *     @type string $1 The post name.
1458       * }
1459       * @param int     $post_id Post ID.
1460       * @param string  $title   Post title.
1461       * @param string  $name    Post name (slug).
1462       * @param WP_Post $post    Post object.
1463       */
1464      return apply_filters( 'get_sample_permalink', $permalink, $post->ID, $title, $name, $post );
1465  }
1466  
1467  /**
1468   * Returns the HTML of the sample permalink slug editor.
1469   *
1470   * @since 2.5.0
1471   *
1472   * @param int|WP_Post $post      Post ID or post object.
1473   * @param string|null $new_title Optional. New title. Default null.
1474   * @param string|null $new_slug  Optional. New slug. Default null.
1475   * @return string The HTML of the sample permalink slug editor.
1476   */
1477  function get_sample_permalink_html( $post, $new_title = null, $new_slug = null ) {
1478      $post = get_post( $post );
1479  
1480      if ( ! $post ) {
1481          return '';
1482      }
1483  
1484      list($permalink, $post_name) = get_sample_permalink( $post->ID, $new_title, $new_slug );
1485  
1486      $view_link      = false;
1487      $preview_target = '';
1488  
1489      if ( current_user_can( 'read_post', $post->ID ) ) {
1490          if ( 'draft' === $post->post_status || empty( $post->post_name ) ) {
1491              $view_link      = get_preview_post_link( $post );
1492              $preview_target = " target='wp-preview-{$post->ID}'";
1493          } else {
1494              if ( 'publish' === $post->post_status || 'attachment' === $post->post_type ) {
1495                  $view_link = get_permalink( $post );
1496              } else {
1497                  // Allow non-published (private, future) to be viewed at a pretty permalink, in case $post->post_name is set.
1498                  $view_link = str_replace( array( '%pagename%', '%postname%' ), $post->post_name, $permalink );
1499              }
1500          }
1501      }
1502  
1503      // Permalinks without a post/page name placeholder don't have anything to edit.
1504      if ( false === strpos( $permalink, '%postname%' ) && false === strpos( $permalink, '%pagename%' ) ) {
1505          $return = '<strong>' . __( 'Permalink:' ) . "</strong>\n";
1506  
1507          if ( false !== $view_link ) {
1508              $display_link = urldecode( $view_link );
1509              $return      .= '<a id="sample-permalink" href="' . esc_url( $view_link ) . '"' . $preview_target . '>' . esc_html( $display_link ) . "</a>\n";
1510          } else {
1511              $return .= '<span id="sample-permalink">' . $permalink . "</span>\n";
1512          }
1513  
1514          // Encourage a pretty permalink setting.
1515          if ( ! get_option( 'permalink_structure' ) && current_user_can( 'manage_options' )
1516              && ! ( 'page' === get_option( 'show_on_front' ) && get_option( 'page_on_front' ) == $post->ID )
1517          ) {
1518              $return .= '<span id="change-permalinks"><a href="options-permalink.php" class="button button-small">' . __( 'Change Permalink Structure' ) . "</a></span>\n";
1519          }
1520      } else {
1521          if ( mb_strlen( $post_name ) > 34 ) {
1522              $post_name_abridged = mb_substr( $post_name, 0, 16 ) . '&hellip;' . mb_substr( $post_name, -16 );
1523          } else {
1524              $post_name_abridged = $post_name;
1525          }
1526  
1527          $post_name_html = '<span id="editable-post-name">' . esc_html( $post_name_abridged ) . '</span>';
1528          $display_link   = str_replace( array( '%pagename%', '%postname%' ), $post_name_html, esc_html( urldecode( $permalink ) ) );
1529  
1530          $return  = '<strong>' . __( 'Permalink:' ) . "</strong>\n";
1531          $return .= '<span id="sample-permalink"><a href="' . esc_url( $view_link ) . '"' . $preview_target . '>' . $display_link . "</a></span>\n";
1532          $return .= '&lrm;'; // Fix bi-directional text display defect in RTL languages.
1533          $return .= '<span id="edit-slug-buttons"><button type="button" class="edit-slug button button-small hide-if-no-js" aria-label="' . __( 'Edit permalink' ) . '">' . __( 'Edit' ) . "</button></span>\n";
1534          $return .= '<span id="editable-post-name-full">' . esc_html( $post_name ) . "</span>\n";
1535      }
1536  
1537      /**
1538       * Filters the sample permalink HTML markup.
1539       *
1540       * @since 2.9.0
1541       * @since 4.4.0 Added `$post` parameter.
1542       *
1543       * @param string  $return    Sample permalink HTML markup.
1544       * @param int     $post_id   Post ID.
1545       * @param string  $new_title New sample permalink title.
1546       * @param string  $new_slug  New sample permalink slug.
1547       * @param WP_Post $post      Post object.
1548       */
1549      $return = apply_filters( 'get_sample_permalink_html', $return, $post->ID, $new_title, $new_slug, $post );
1550  
1551      return $return;
1552  }
1553  
1554  /**
1555   * Returns HTML for the post thumbnail meta box.
1556   *
1557   * @since 2.9.0
1558   *
1559   * @param int|null         $thumbnail_id Optional. Thumbnail attachment ID. Default null.
1560   * @param int|WP_Post|null $post         Optional. The post ID or object associated
1561   *                                       with the thumbnail. Defaults to global $post.
1562   * @return string The post thumbnail HTML.
1563   */
1564  function _wp_post_thumbnail_html( $thumbnail_id = null, $post = null ) {
1565      $_wp_additional_image_sizes = wp_get_additional_image_sizes();
1566  
1567      $post               = get_post( $post );
1568      $post_type_object   = get_post_type_object( $post->post_type );
1569      $set_thumbnail_link = '<p class="hide-if-no-js"><a href="%s" id="set-post-thumbnail"%s class="thickbox">%s</a></p>';
1570      $upload_iframe_src  = get_upload_iframe_src( 'image', $post->ID );
1571  
1572      $content = sprintf(
1573          $set_thumbnail_link,
1574          esc_url( $upload_iframe_src ),
1575          '', // Empty when there's no featured image set, `aria-describedby` attribute otherwise.
1576          esc_html( $post_type_object->labels->set_featured_image )
1577      );
1578  
1579      if ( $thumbnail_id && get_post( $thumbnail_id ) ) {
1580          $size = isset( $_wp_additional_image_sizes['post-thumbnail'] ) ? 'post-thumbnail' : array( 266, 266 );
1581  
1582          /**
1583           * Filters the size used to display the post thumbnail image in the 'Featured image' meta box.
1584           *
1585           * Note: When a theme adds 'post-thumbnail' support, a special 'post-thumbnail'
1586           * image size is registered, which differs from the 'thumbnail' image size
1587           * managed via the Settings > Media screen.
1588           *
1589           * @since 4.4.0
1590           *
1591           * @param string|int[] $size         Requested image size. Can be any registered image size name, or
1592           *                                   an array of width and height values in pixels (in that order).
1593           * @param int          $thumbnail_id Post thumbnail attachment ID.
1594           * @param WP_Post      $post         The post object associated with the thumbnail.
1595           */
1596          $size = apply_filters( 'admin_post_thumbnail_size', $size, $thumbnail_id, $post );
1597  
1598          $thumbnail_html = wp_get_attachment_image( $thumbnail_id, $size );
1599  
1600          if ( ! empty( $thumbnail_html ) ) {
1601              $content  = sprintf(
1602                  $set_thumbnail_link,
1603                  esc_url( $upload_iframe_src ),
1604                  ' aria-describedby="set-post-thumbnail-desc"',
1605                  $thumbnail_html
1606              );
1607              $content .= '<p class="hide-if-no-js howto" id="set-post-thumbnail-desc">' . __( 'Click the image to edit or update' ) . '</p>';
1608              $content .= '<p class="hide-if-no-js"><a href="#" id="remove-post-thumbnail">' . esc_html( $post_type_object->labels->remove_featured_image ) . '</a></p>';
1609          }
1610      }
1611  
1612      $content .= '<input type="hidden" id="_thumbnail_id" name="_thumbnail_id" value="' . esc_attr( $thumbnail_id ? $thumbnail_id : '-1' ) . '" />';
1613  
1614      /**
1615       * Filters the admin post thumbnail HTML markup to return.
1616       *
1617       * @since 2.9.0
1618       * @since 3.5.0 Added the `$post_id` parameter.
1619       * @since 4.6.0 Added the `$thumbnail_id` parameter.
1620       *
1621       * @param string   $content      Admin post thumbnail HTML markup.
1622       * @param int      $post_id      Post ID.
1623       * @param int|null $thumbnail_id Thumbnail attachment ID, or null if there isn't one.
1624       */
1625      return apply_filters( 'admin_post_thumbnail_html', $content, $post->ID, $thumbnail_id );
1626  }
1627  
1628  /**
1629   * Determines whether the post is currently being edited by another user.
1630   *
1631   * @since 2.5.0
1632   *
1633   * @param int|WP_Post $post ID or object of the post to check for editing.
1634   * @return int|false ID of the user with lock. False if the post does not exist, post is not locked,
1635   *                   the user with lock does not exist, or the post is locked by current user.
1636   */
1637  function wp_check_post_lock( $post ) {
1638      $post = get_post( $post );
1639  
1640      if ( ! $post ) {
1641          return false;
1642      }
1643  
1644      $lock = get_post_meta( $post->ID, '_edit_lock', true );
1645  
1646      if ( ! $lock ) {
1647          return false;
1648      }
1649  
1650      $lock = explode( ':', $lock );
1651      $time = $lock[0];
1652      $user = isset( $lock[1] ) ? $lock[1] : get_post_meta( $post->ID, '_edit_last', true );
1653  
1654      if ( ! get_userdata( $user ) ) {
1655          return false;
1656      }
1657  
1658      /** This filter is documented in wp-admin/includes/ajax-actions.php */
1659      $time_window = apply_filters( 'wp_check_post_lock_window', 150 );
1660  
1661      if ( $time && $time > time() - $time_window && get_current_user_id() != $user ) {
1662          return $user;
1663      }
1664  
1665      return false;
1666  }
1667  
1668  /**
1669   * Marks the post as currently being edited by the current user.
1670   *
1671   * @since 2.5.0
1672   *
1673   * @param int|WP_Post $post ID or object of the post being edited.
1674   * @return array|false {
1675   *     Array of the lock time and user ID. False if the post does not exist, or there
1676   *     is no current user.
1677   *
1678   *     @type int $0 The current time as a Unix timestamp.
1679   *     @type int $1 The ID of the current user.
1680   * }
1681   */
1682  function wp_set_post_lock( $post ) {
1683      $post = get_post( $post );
1684  
1685      if ( ! $post ) {
1686          return false;
1687      }
1688  
1689      $user_id = get_current_user_id();
1690  
1691      if ( 0 == $user_id ) {
1692          return false;
1693      }
1694  
1695      $now  = time();
1696      $lock = "$now:$user_id";
1697  
1698      update_post_meta( $post->ID, '_edit_lock', $lock );
1699  
1700      return array( $now, $user_id );
1701  }
1702  
1703  /**
1704   * Outputs the HTML for the notice to say that someone else is editing or has taken over editing of this post.
1705   *
1706   * @since 2.8.5
1707   */
1708  function _admin_notice_post_locked() {
1709      $post = get_post();
1710  
1711      if ( ! $post ) {
1712          return;
1713      }
1714  
1715      $user    = null;
1716      $user_id = wp_check_post_lock( $post->ID );
1717  
1718      if ( $user_id ) {
1719          $user = get_userdata( $user_id );
1720      }
1721  
1722      if ( $user ) {
1723          /**
1724           * Filters whether to show the post locked dialog.
1725           *
1726           * Returning false from the filter will prevent the dialog from being displayed.
1727           *
1728           * @since 3.6.0
1729           *
1730           * @param bool    $display Whether to display the dialog. Default true.
1731           * @param WP_Post $post    Post object.
1732           * @param WP_User $user    The user with the lock for the post.
1733           */
1734          if ( ! apply_filters( 'show_post_locked_dialog', true, $post, $user ) ) {
1735              return;
1736          }
1737  
1738          $locked = true;
1739      } else {
1740          $locked = false;
1741      }
1742  
1743      $sendback = wp_get_referer();
1744      if ( $locked && $sendback && false === strpos( $sendback, 'post.php' ) && false === strpos( $sendback, 'post-new.php' ) ) {
1745  
1746          $sendback_text = __( 'Go back' );
1747      } else {
1748          $sendback = admin_url( 'edit.php' );
1749  
1750          if ( 'post' !== $post->post_type ) {
1751              $sendback = add_query_arg( 'post_type', $post->post_type, $sendback );
1752          }
1753  
1754          $sendback_text = get_post_type_object( $post->post_type )->labels->all_items;
1755      }
1756  
1757      $hidden = $locked ? '' : ' hidden';
1758  
1759      ?>
1760      <div id="post-lock-dialog" class="notification-dialog-wrap<?php echo $hidden; ?>">
1761      <div class="notification-dialog-background"></div>
1762      <div class="notification-dialog">
1763      <?php
1764  
1765      if ( $locked ) {
1766          $query_args = array();
1767          if ( get_post_type_object( $post->post_type )->public ) {
1768              if ( 'publish' === $post->post_status || $user->ID != $post->post_author ) {
1769                  // Latest content is in autosave.
1770                  $nonce                       = wp_create_nonce( 'post_preview_' . $post->ID );
1771                  $query_args['preview_id']    = $post->ID;
1772                  $query_args['preview_nonce'] = $nonce;
1773              }
1774          }
1775  
1776          $preview_link = get_preview_post_link( $post->ID, $query_args );
1777  
1778          /**
1779           * Filters whether to allow the post lock to be overridden.
1780           *
1781           * Returning false from the filter will disable the ability
1782           * to override the post lock.
1783           *
1784           * @since 3.6.0
1785           *
1786           * @param bool    $override Whether to allow the post lock to be overridden. Default true.
1787           * @param WP_Post $post     Post object.
1788           * @param WP_User $user     The user with the lock for the post.
1789           */
1790          $override = apply_filters( 'override_post_lock', true, $post, $user );
1791          $tab_last = $override ? '' : ' wp-tab-last';
1792  
1793          ?>
1794          <div class="post-locked-message">
1795          <div class="post-locked-avatar"><?php echo get_avatar( $user->ID, 64 ); ?></div>
1796          <p class="currently-editing wp-tab-first" tabindex="0">
1797          <?php
1798          if ( $override ) {
1799              /* translators: %s: User's display name. */
1800              printf( __( '%s is currently editing this post. Do you want to take over?' ), esc_html( $user->display_name ) );
1801          } else {
1802              /* translators: %s: User's display name. */
1803              printf( __( '%s is currently editing this post.' ), esc_html( $user->display_name ) );
1804          }
1805          ?>
1806          </p>
1807          <?php
1808          /**
1809           * Fires inside the post locked dialog before the buttons are displayed.
1810           *
1811           * @since 3.6.0
1812           * @since 5.4.0 The $user parameter was added.
1813           *
1814           * @param WP_Post $post Post object.
1815           * @param WP_User $user The user with the lock for the post.
1816           */
1817          do_action( 'post_locked_dialog', $post, $user );
1818          ?>
1819          <p>
1820          <a class="button" href="<?php echo esc_url( $sendback ); ?>"><?php echo $sendback_text; ?></a>
1821          <?php if ( $preview_link ) { ?>
1822          <a class="button<?php echo $tab_last; ?>" href="<?php echo esc_url( $preview_link ); ?>"><?php _e( 'Preview' ); ?></a>
1823              <?php
1824          }
1825  
1826          // Allow plugins to prevent some users overriding the post lock.
1827          if ( $override ) {
1828              ?>
1829      <a class="button button-primary wp-tab-last" href="<?php echo esc_url( add_query_arg( 'get-post-lock', '1', wp_nonce_url( get_edit_post_link( $post->ID, 'url' ), 'lock-post_' . $post->ID ) ) ); ?>"><?php _e( 'Take over' ); ?></a>
1830              <?php
1831          }
1832  
1833          ?>
1834          </p>
1835          </div>
1836          <?php
1837      } else {
1838          ?>
1839          <div class="post-taken-over">
1840              <div class="post-locked-avatar"></div>
1841              <p class="wp-tab-first" tabindex="0">
1842              <span class="currently-editing"></span><br />
1843              <span class="locked-saving hidden"><img src="<?php echo esc_url( admin_url( 'images/spinner-2x.gif' ) ); ?>" width="16" height="16" alt="" /> <?php _e( 'Saving revision&hellip;' ); ?></span>
1844              <span class="locked-saved hidden"><?php _e( 'Your latest changes were saved as a revision.' ); ?></span>
1845              </p>
1846              <?php
1847              /**
1848               * Fires inside the dialog displayed when a user has lost the post lock.
1849               *
1850               * @since 3.6.0
1851               *
1852               * @param WP_Post $post Post object.
1853               */
1854              do_action( 'post_lock_lost_dialog', $post );
1855              ?>
1856              <p><a class="button button-primary wp-tab-last" href="<?php echo esc_url( $sendback ); ?>"><?php echo $sendback_text; ?></a></p>
1857          </div>
1858          <?php
1859      }
1860  
1861      ?>
1862      </div>
1863      </div>
1864      <?php
1865  }
1866  
1867  /**
1868   * Creates autosave data for the specified post from `$_POST` data.
1869   *
1870   * @since 2.6.0
1871   *
1872   * @param array|int $post_data Associative array containing the post data, or integer post ID.
1873   *                             If a numeric post ID is provided, will use the `$_POST` superglobal.
1874   * @return int|WP_Error The autosave revision ID. WP_Error or 0 on error.
1875   */
1876  function wp_create_post_autosave( $post_data ) {
1877      if ( is_numeric( $post_data ) ) {
1878          $post_id   = $post_data;
1879          $post_data = $_POST;
1880      } else {
1881          $post_id = (int) $post_data['post_ID'];
1882      }
1883  
1884      $post_data = _wp_translate_postdata( true, $post_data );
1885      if ( is_wp_error( $post_data ) ) {
1886          return $post_data;
1887      }
1888      $post_data = _wp_get_allowed_postdata( $post_data );
1889  
1890      $post_author = get_current_user_id();
1891  
1892      // Store one autosave per author. If there is already an autosave, overwrite it.
1893      $old_autosave = wp_get_post_autosave( $post_id, $post_author );
1894      if ( $old_autosave ) {
1895          $new_autosave                = _wp_post_revision_data( $post_data, true );
1896          $new_autosave['ID']          = $old_autosave->ID;
1897          $new_autosave['post_author'] = $post_author;
1898  
1899          $post = get_post( $post_id );
1900  
1901          // If the new autosave has the same content as the post, delete the autosave.
1902          $autosave_is_different = false;
1903          foreach ( array_intersect( array_keys( $new_autosave ), array_keys( _wp_post_revision_fields( $post ) ) ) as $field ) {
1904              if ( normalize_whitespace( $new_autosave[ $field ] ) !== normalize_whitespace( $post->$field ) ) {
1905                  $autosave_is_different = true;
1906                  break;
1907              }
1908          }
1909  
1910          if ( ! $autosave_is_different ) {
1911              wp_delete_post_revision( $old_autosave->ID );
1912              return 0;
1913          }
1914  
1915          /**
1916           * Fires before an autosave is stored.
1917           *
1918           * @since 4.1.0
1919           *
1920           * @param array $new_autosave Post array - the autosave that is about to be saved.
1921           */
1922          do_action( 'wp_creating_autosave', $new_autosave );
1923  
1924          return wp_update_post( $new_autosave );
1925      }
1926  
1927      // _wp_put_post_revision() expects unescaped.
1928      $post_data = wp_unslash( $post_data );
1929  
1930      // Otherwise create the new autosave as a special post revision.
1931      return _wp_put_post_revision( $post_data, true );
1932  }
1933  
1934  /**
1935   * Saves a draft or manually autosaves for the purpose of showing a post preview.
1936   *
1937   * @since 2.7.0
1938   *
1939   * @return string URL to redirect to show the preview.
1940   */
1941  function post_preview() {
1942  
1943      $post_ID     = (int) $_POST['post_ID'];
1944      $_POST['ID'] = $post_ID;
1945  
1946      $post = get_post( $post_ID );
1947  
1948      if ( ! $post ) {
1949          wp_die( __( 'Sorry, you are not allowed to edit this post.' ) );
1950      }
1951  
1952      if ( ! current_user_can( 'edit_post', $post->ID ) ) {
1953          wp_die( __( 'Sorry, you are not allowed to edit this post.' ) );
1954      }
1955  
1956      $is_autosave = false;
1957  
1958      if ( ! wp_check_post_lock( $post->ID ) && get_current_user_id() == $post->post_author
1959          && ( 'draft' === $post->post_status || 'auto-draft' === $post->post_status )
1960      ) {
1961          $saved_post_id = edit_post();
1962      } else {
1963          $is_autosave = true;
1964  
1965          if ( isset( $_POST['post_status'] ) && 'auto-draft' === $_POST['post_status'] ) {
1966              $_POST['post_status'] = 'draft';
1967          }
1968  
1969          $saved_post_id = wp_create_post_autosave( $post->ID );
1970      }
1971  
1972      if ( is_wp_error( $saved_post_id ) ) {
1973          wp_die( $saved_post_id->get_error_message() );
1974      }
1975  
1976      $query_args = array();
1977  
1978      if ( $is_autosave && $saved_post_id ) {
1979          $query_args['preview_id']    = $post->ID;
1980          $query_args['preview_nonce'] = wp_create_nonce( 'post_preview_' . $post->ID );
1981  
1982          if ( isset( $_POST['post_format'] ) ) {
1983              $query_args['post_format'] = empty( $_POST['post_format'] ) ? 'standard' : sanitize_key( $_POST['post_format'] );
1984          }
1985  
1986          if ( isset( $_POST['_thumbnail_id'] ) ) {
1987              $query_args['_thumbnail_id'] = ( (int) $_POST['_thumbnail_id'] <= 0 ) ? '-1' : (int) $_POST['_thumbnail_id'];
1988          }
1989      }
1990  
1991      return get_preview_post_link( $post, $query_args );
1992  }
1993  
1994  /**
1995   * Saves a post submitted with XHR.
1996   *
1997   * Intended for use with heartbeat and autosave.js
1998   *
1999   * @since 3.9.0
2000   *
2001   * @param array $post_data Associative array of the submitted post data.
2002   * @return mixed The value 0 or WP_Error on failure. The saved post ID on success.
2003   *               The ID can be the draft post_id or the autosave revision post_id.
2004   */
2005  function wp_autosave( $post_data ) {
2006      // Back-compat.
2007      if ( ! defined( 'DOING_AUTOSAVE' ) ) {
2008          define( 'DOING_AUTOSAVE', true );
2009      }
2010  
2011      $post_id              = (int) $post_data['post_id'];
2012      $post_data['ID']      = $post_id;
2013      $post_data['post_ID'] = $post_id;
2014  
2015      if ( false === wp_verify_nonce( $post_data['_wpnonce'], 'update-post_' . $post_id ) ) {
2016          return new WP_Error( 'invalid_nonce', __( 'Error while saving.' ) );
2017      }
2018  
2019      $post = get_post( $post_id );
2020  
2021      if ( ! current_user_can( 'edit_post', $post->ID ) ) {
2022          return new WP_Error( 'edit_posts', __( 'Sorry, you are not allowed to edit this item.' ) );
2023      }
2024  
2025      if ( 'auto-draft' === $post->post_status ) {
2026          $post_data['post_status'] = 'draft';
2027      }
2028  
2029      if ( 'page' !== $post_data['post_type'] && ! empty( $post_data['catslist'] ) ) {
2030          $post_data['post_category'] = explode( ',', $post_data['catslist'] );
2031      }
2032  
2033      if ( ! wp_check_post_lock( $post->ID ) && get_current_user_id() == $post->post_author
2034          && ( 'auto-draft' === $post->post_status || 'draft' === $post->post_status )
2035      ) {
2036          // Drafts and auto-drafts are just overwritten by autosave for the same user if the post is not locked.
2037          return edit_post( wp_slash( $post_data ) );
2038      } else {
2039          // Non-drafts or other users' drafts are not overwritten.
2040          // The autosave is stored in a special post revision for each user.
2041          return wp_create_post_autosave( wp_slash( $post_data ) );
2042      }
2043  }
2044  
2045  /**
2046   * Redirects to previous page.
2047   *
2048   * @since 2.7.0
2049   *
2050   * @param int $post_id Optional. Post ID.
2051   */
2052  function redirect_post( $post_id = '' ) {
2053      if ( isset( $_POST['save'] ) || isset( $_POST['publish'] ) ) {
2054          $status = get_post_status( $post_id );
2055  
2056          if ( isset( $_POST['publish'] ) ) {
2057              switch ( $status ) {
2058                  case 'pending':
2059                      $message = 8;
2060                      break;
2061                  case 'future':
2062                      $message = 9;
2063                      break;
2064                  default:
2065                      $message = 6;
2066              }
2067          } else {
2068              $message = 'draft' === $status ? 10 : 1;
2069          }
2070  
2071          $location = add_query_arg( 'message', $message, get_edit_post_link( $post_id, 'url' ) );
2072      } elseif ( isset( $_POST['addmeta'] ) && $_POST['addmeta'] ) {
2073          $location = add_query_arg( 'message', 2, wp_get_referer() );
2074          $location = explode( '#', $location );
2075          $location = $location[0] . '#postcustom';
2076      } elseif ( isset( $_POST['deletemeta'] ) && $_POST['deletemeta'] ) {
2077          $location = add_query_arg( 'message', 3, wp_get_referer() );
2078          $location = explode( '#', $location );
2079          $location = $location[0] . '#postcustom';
2080      } else {
2081          $location = add_query_arg( 'message', 4, get_edit_post_link( $post_id, 'url' ) );
2082      }
2083  
2084      /**
2085       * Filters the post redirect destination URL.
2086       *
2087       * @since 2.9.0
2088       *
2089       * @param string $location The destination URL.
2090       * @param int    $post_id  The post ID.
2091       */
2092      wp_redirect( apply_filters( 'redirect_post_location', $location, $post_id ) );
2093      exit;
2094  }
2095  
2096  /**
2097   * Sanitizes POST values from a checkbox taxonomy metabox.
2098   *
2099   * @since 5.1.0
2100   *
2101   * @param string $taxonomy The taxonomy name.
2102   * @param array  $terms    Raw term data from the 'tax_input' field.
2103   * @return int[] Array of sanitized term IDs.
2104   */
2105  function taxonomy_meta_box_sanitize_cb_checkboxes( $taxonomy, $terms ) {
2106      return array_map( 'intval', $terms );
2107  }
2108  
2109  /**
2110   * Sanitizes POST values from an input taxonomy metabox.
2111   *
2112   * @since 5.1.0
2113   *
2114   * @param string       $taxonomy The taxonomy name.
2115   * @param array|string $terms    Raw term data from the 'tax_input' field.
2116   * @return array
2117   */
2118  function taxonomy_meta_box_sanitize_cb_input( $taxonomy, $terms ) {
2119      /*
2120       * Assume that a 'tax_input' string is a comma-separated list of term names.
2121       * Some languages may use a character other than a comma as a delimiter, so we standardize on
2122       * commas before parsing the list.
2123       */
2124      if ( ! is_array( $terms ) ) {
2125          $comma = _x( ',', 'tag delimiter' );
2126          if ( ',' !== $comma ) {
2127              $terms = str_replace( $comma, ',', $terms );
2128          }
2129          $terms = explode( ',', trim( $terms, " \n\t\r\0\x0B," ) );
2130      }
2131  
2132      $clean_terms = array();
2133      foreach ( $terms as $term ) {
2134          // Empty terms are invalid input.
2135          if ( empty( $term ) ) {
2136              continue;
2137          }
2138  
2139          $_term = get_terms(
2140              array(
2141                  'taxonomy'   => $taxonomy,
2142                  'name'       => $term,
2143                  'fields'     => 'ids',
2144                  'hide_empty' => false,
2145              )
2146          );
2147  
2148          if ( ! empty( $_term ) ) {
2149              $clean_terms[] = (int) $_term[0];
2150          } else {
2151              // No existing term was found, so pass the string. A new term will be created.
2152              $clean_terms[] = $term;
2153          }
2154      }
2155  
2156      return $clean_terms;
2157  }
2158  
2159  /**
2160   * Prepares server-registered blocks for the block editor.
2161   *
2162   * Returns an associative array of registered block data keyed by block name. Data includes properties
2163   * of a block relevant for client registration.
2164   *
2165   * @since 5.0.0
2166   *
2167   * @return array An associative array of registered block data.
2168   */
2169  function get_block_editor_server_block_settings() {
2170      $block_registry = WP_Block_Type_Registry::get_instance();
2171      $blocks         = array();
2172      $fields_to_pick = array(
2173          'api_version'      => 'apiVersion',
2174          'title'            => 'title',
2175          'description'      => 'description',
2176          'icon'             => 'icon',
2177          'attributes'       => 'attributes',
2178          'provides_context' => 'providesContext',
2179          'uses_context'     => 'usesContext',
2180          'supports'         => 'supports',
2181          'category'         => 'category',
2182          'styles'           => 'styles',
2183          'textdomain'       => 'textdomain',
2184          'parent'           => 'parent',
2185          'ancestor'         => 'ancestor',
2186          'keywords'         => 'keywords',
2187          'example'          => 'example',
2188          'variations'       => 'variations',
2189      );
2190  
2191      foreach ( $block_registry->get_all_registered() as $block_name => $block_type ) {
2192          foreach ( $fields_to_pick as $field => $key ) {
2193              if ( ! isset( $block_type->{ $field } ) ) {
2194                  continue;
2195              }
2196  
2197              if ( ! isset( $blocks[ $block_name ] ) ) {
2198                  $blocks[ $block_name ] = array();
2199              }
2200  
2201              $blocks[ $block_name ][ $key ] = $block_type->{ $field };
2202          }
2203      }
2204  
2205      return $blocks;
2206  }
2207  
2208  /**
2209   * Renders the meta boxes forms.
2210   *
2211   * @since 5.0.0
2212   */
2213  function the_block_editor_meta_boxes() {
2214      global $post, $current_screen, $wp_meta_boxes;
2215  
2216      // Handle meta box state.
2217      $_original_meta_boxes = $wp_meta_boxes;
2218  
2219      /**
2220       * Fires right before the meta boxes are rendered.
2221       *
2222       * This allows for the filtering of meta box data, that should already be
2223       * present by this point. Do not use as a means of adding meta box data.
2224       *
2225       * @since 5.0.0
2226       *
2227       * @param array $wp_meta_boxes Global meta box state.
2228       */
2229      $wp_meta_boxes = apply_filters( 'filter_block_editor_meta_boxes', $wp_meta_boxes );
2230      $locations     = array( 'side', 'normal', 'advanced' );
2231      $priorities    = array( 'high', 'sorted', 'core', 'default', 'low' );
2232  
2233      // Render meta boxes.
2234      ?>
2235      <form class="metabox-base-form">
2236      <?php the_block_editor_meta_box_post_form_hidden_fields( $post ); ?>
2237      </form>
2238      <form id="toggle-custom-fields-form" method="post" action="<?php echo esc_url( admin_url( 'post.php' ) ); ?>">
2239          <?php wp_nonce_field( 'toggle-custom-fields', 'toggle-custom-fields-nonce' ); ?>
2240          <input type="hidden" name="action" value="toggle-custom-fields" />
2241      </form>
2242      <?php foreach ( $locations as $location ) : ?>
2243          <form class="metabox-location-<?php echo esc_attr( $location ); ?>" onsubmit="return false;">
2244              <div id="poststuff" class="sidebar-open">
2245                  <div id="postbox-container-2" class="postbox-container">
2246                      <?php
2247                      do_meta_boxes(
2248                          $current_screen,
2249                          $location,
2250                          $post
2251                      );
2252                      ?>
2253                  </div>
2254              </div>
2255          </form>
2256      <?php endforeach; ?>
2257      <?php
2258  
2259      $meta_boxes_per_location = array();
2260      foreach ( $locations as $location ) {
2261          $meta_boxes_per_location[ $location ] = array();
2262  
2263          if ( ! isset( $wp_meta_boxes[ $current_screen->id ][ $location ] ) ) {
2264              continue;
2265          }
2266  
2267          foreach ( $priorities as $priority ) {
2268              if ( ! isset( $wp_meta_boxes[ $current_screen->id ][ $location ][ $priority ] ) ) {
2269                  continue;
2270              }
2271  
2272              $meta_boxes = (array) $wp_meta_boxes[ $current_screen->id ][ $location ][ $priority ];
2273              foreach ( $meta_boxes as $meta_box ) {
2274                  if ( false == $meta_box || ! $meta_box['title'] ) {
2275                      continue;
2276                  }
2277  
2278                  // If a meta box is just here for back compat, don't show it in the block editor.
2279                  if ( isset( $meta_box['args']['__back_compat_meta_box'] ) && $meta_box['args']['__back_compat_meta_box'] ) {
2280                      continue;
2281                  }
2282  
2283                  $meta_boxes_per_location[ $location ][] = array(
2284                      'id'    => $meta_box['id'],
2285                      'title' => $meta_box['title'],
2286                  );
2287              }
2288          }
2289      }
2290  
2291      /*
2292       * Sadly we probably cannot add this data directly into editor settings.
2293       *
2294       * Some meta boxes need `admin_head` to fire for meta box registry.
2295       * `admin_head` fires after `admin_enqueue_scripts`, which is where we create
2296       * our editor instance.
2297       */
2298      $script = 'window._wpLoadBlockEditor.then( function() {
2299          wp.data.dispatch( \'core/edit-post\' ).setAvailableMetaBoxesPerLocation( ' . wp_json_encode( $meta_boxes_per_location ) . ' );
2300      } );';
2301  
2302      wp_add_inline_script( 'wp-edit-post', $script );
2303  
2304      /*
2305       * When `wp-edit-post` is output in the `<head>`, the inline script needs to be manually printed.
2306       * Otherwise, meta boxes will not display because inline scripts for `wp-edit-post`
2307       * will not be printed again after this point.
2308       */
2309      if ( wp_script_is( 'wp-edit-post', 'done' ) ) {
2310          printf( "<script type='text/javascript'>\n%s\n</script>\n", trim( $script ) );
2311      }
2312  
2313      /*
2314       * If the 'postcustom' meta box is enabled, then we need to perform
2315       * some extra initialization on it.
2316       */
2317      $enable_custom_fields = (bool) get_user_meta( get_current_user_id(), 'enable_custom_fields', true );
2318  
2319      if ( $enable_custom_fields ) {
2320          $script = "( function( $ ) {
2321              if ( $('#postcustom').length ) {
2322                  $( '#the-list' ).wpList( {
2323                      addBefore: function( s ) {
2324                          s.data += '&post_id=$post->ID';
2325                          return s;
2326                      },
2327                      addAfter: function() {
2328                          $('table#list-table').show();
2329                      }
2330                  });
2331              }
2332          } )( jQuery );";
2333          wp_enqueue_script( 'wp-lists' );
2334          wp_add_inline_script( 'wp-lists', $script );
2335      }
2336  
2337      // Reset meta box data.
2338      $wp_meta_boxes = $_original_meta_boxes;
2339  }
2340  
2341  /**
2342   * Renders the hidden form required for the meta boxes form.
2343   *
2344   * @since 5.0.0
2345   *
2346   * @param WP_Post $post Current post object.
2347   */
2348  function the_block_editor_meta_box_post_form_hidden_fields( $post ) {
2349      $form_extra = '';
2350      if ( 'auto-draft' === $post->post_status ) {
2351          $form_extra .= "<input type='hidden' id='auto_draft' name='auto_draft' value='1' />";
2352      }
2353      $form_action  = 'editpost';
2354      $nonce_action = 'update-post_' . $post->ID;
2355      $form_extra  .= "<input type='hidden' id='post_ID' name='post_ID' value='" . esc_attr( $post->ID ) . "' />";
2356      $referer      = wp_get_referer();
2357      $current_user = wp_get_current_user();
2358      $user_id      = $current_user->ID;
2359      wp_nonce_field( $nonce_action );
2360  
2361      /*
2362       * Some meta boxes hook into these actions to add hidden input fields in the classic post form.
2363       * For backward compatibility, we can capture the output from these actions,
2364       * and extract the hidden input fields.
2365       */
2366      ob_start();
2367      /** This filter is documented in wp-admin/edit-form-advanced.php */
2368      do_action( 'edit_form_after_title', $post );
2369      /** This filter is documented in wp-admin/edit-form-advanced.php */
2370      do_action( 'edit_form_advanced', $post );
2371      $classic_output = ob_get_clean();
2372  
2373      $classic_elements = wp_html_split( $classic_output );
2374      $hidden_inputs    = '';
2375      foreach ( $classic_elements as $element ) {
2376          if ( 0 !== strpos( $element, '<input ' ) ) {
2377              continue;
2378          }
2379  
2380          if ( preg_match( '/\stype=[\'"]hidden[\'"]\s/', $element ) ) {
2381              echo $element;
2382          }
2383      }
2384      ?>
2385      <input type="hidden" id="user-id" name="user_ID" value="<?php echo (int) $user_id; ?>" />
2386      <input type="hidden" id="hiddenaction" name="action" value="<?php echo esc_attr( $form_action ); ?>" />
2387      <input type="hidden" id="originalaction" name="originalaction" value="<?php echo esc_attr( $form_action ); ?>" />
2388      <input type="hidden" id="post_type" name="post_type" value="<?php echo esc_attr( $post->post_type ); ?>" />
2389      <input type="hidden" id="original_post_status" name="original_post_status" value="<?php echo esc_attr( $post->post_status ); ?>" />
2390      <input type="hidden" id="referredby" name="referredby" value="<?php echo $referer ? esc_url( $referer ) : ''; ?>" />
2391  
2392      <?php
2393      if ( 'draft' !== get_post_status( $post ) ) {
2394          wp_original_referer_field( true, 'previous' );
2395      }
2396      echo $form_extra;
2397      wp_nonce_field( 'meta-box-order', 'meta-box-order-nonce', false );
2398      wp_nonce_field( 'closedpostboxes', 'closedpostboxesnonce', false );
2399      // Permalink title nonce.
2400      wp_nonce_field( 'samplepermalink', 'samplepermalinknonce', false );
2401  
2402      /**
2403       * Adds hidden input fields to the meta box save form.
2404       *
2405       * Hook into this action to print `<input type="hidden" ... />` fields, which will be POSTed back to
2406       * the server when meta boxes are saved.
2407       *
2408       * @since 5.0.0
2409       *
2410       * @param WP_Post $post The post that is being edited.
2411       */
2412      do_action( 'block_editor_meta_box_hidden_fields', $post );
2413  }
2414  
2415  /**
2416   * Disables block editor for wp_navigation type posts so they can be managed via the UI.
2417   *
2418   * @since 5.9.0
2419   * @access private
2420   *
2421   * @param bool   $value Whether the CPT supports block editor or not.
2422   * @param string $post_type Post type.
2423   * @return bool Whether the block editor should be disabled or not.
2424   */
2425  function _disable_block_editor_for_navigation_post_type( $value, $post_type ) {
2426      if ( 'wp_navigation' === $post_type ) {
2427          return false;
2428      }
2429  
2430      return $value;
2431  }
2432  
2433  /**
2434   * This callback disables the content editor for wp_navigation type posts.
2435   * Content editor cannot handle wp_navigation type posts correctly.
2436   * We cannot disable the "editor" feature in the wp_navigation's CPT definition
2437   * because it disables the ability to save navigation blocks via REST API.
2438   *
2439   * @since 5.9.0
2440   * @access private
2441   *
2442   * @param WP_Post $post An instance of WP_Post class.
2443   */
2444  function _disable_content_editor_for_navigation_post_type( $post ) {
2445      $post_type = get_post_type( $post );
2446      if ( 'wp_navigation' !== $post_type ) {
2447          return;
2448      }
2449  
2450      remove_post_type_support( $post_type, 'editor' );
2451  }
2452  
2453  /**
2454   * This callback enables content editor for wp_navigation type posts.
2455   * We need to enable it back because we disable it to hide
2456   * the content editor for wp_navigation type posts.
2457   *
2458   * @since 5.9.0
2459   * @access private
2460   *
2461   * @see _disable_content_editor_for_navigation_post_type
2462   *
2463   * @param WP_Post $post An instance of WP_Post class.
2464   */
2465  function _enable_content_editor_for_navigation_post_type( $post ) {
2466      $post_type = get_post_type( $post );
2467      if ( 'wp_navigation' !== $post_type ) {
2468          return;
2469      }
2470  
2471      add_post_type_support( $post_type, 'editor' );
2472  }


Generated : Fri Aug 19 08:20:02 2022 Cross-referenced by PHPXref