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

   1  <?php
   2  /**
   3   * WordPress Administration Media API.
   4   *
   5   * @package WordPress
   6   * @subpackage Administration
   7   */
   8  
   9  /**
  10   * Defines the default media upload tabs.
  11   *
  12   * @since 2.5.0
  13   *
  14   * @return string[] Default tabs.
  15   */
  16  function media_upload_tabs() {
  17      $_default_tabs = array(
  18          'type'     => __( 'From Computer' ), // Handler action suffix => tab text.
  19          'type_url' => __( 'From URL' ),
  20          'gallery'  => __( 'Gallery' ),
  21          'library'  => __( 'Media Library' ),
  22      );
  23  
  24      /**
  25       * Filters the available tabs in the legacy (pre-3.5.0) media popup.
  26       *
  27       * @since 2.5.0
  28       *
  29       * @param string[] $_default_tabs An array of media tabs.
  30       */
  31      return apply_filters( 'media_upload_tabs', $_default_tabs );
  32  }
  33  
  34  /**
  35   * Adds the gallery tab back to the tabs array if post has image attachments.
  36   *
  37   * @since 2.5.0
  38   *
  39   * @global wpdb $wpdb WordPress database abstraction object.
  40   *
  41   * @param array $tabs
  42   * @return array $tabs with gallery if post has image attachment
  43   */
  44  function update_gallery_tab( $tabs ) {
  45      global $wpdb;
  46  
  47      if ( ! isset( $_REQUEST['post_id'] ) ) {
  48          unset( $tabs['gallery'] );
  49          return $tabs;
  50      }
  51  
  52      $post_id = (int) $_REQUEST['post_id'];
  53  
  54      if ( $post_id ) {
  55          $attachments = (int) $wpdb->get_var( $wpdb->prepare( "SELECT count(*) FROM $wpdb->posts WHERE post_type = 'attachment' AND post_status != 'trash' AND post_parent = %d", $post_id ) );
  56      }
  57  
  58      if ( empty( $attachments ) ) {
  59          unset( $tabs['gallery'] );
  60          return $tabs;
  61      }
  62  
  63      /* translators: %s: Number of attachments. */
  64      $tabs['gallery'] = sprintf( __( 'Gallery (%s)' ), "<span id='attachments-count'>$attachments</span>" );
  65  
  66      return $tabs;
  67  }
  68  
  69  /**
  70   * Outputs the legacy media upload tabs UI.
  71   *
  72   * @since 2.5.0
  73   *
  74   * @global string $redir_tab
  75   */
  76  function the_media_upload_tabs() {
  77      global $redir_tab;
  78      $tabs    = media_upload_tabs();
  79      $default = 'type';
  80  
  81      if ( ! empty( $tabs ) ) {
  82          echo "<ul id='sidemenu'>\n";
  83  
  84          if ( isset( $redir_tab ) && array_key_exists( $redir_tab, $tabs ) ) {
  85              $current = $redir_tab;
  86          } elseif ( isset( $_GET['tab'] ) && array_key_exists( $_GET['tab'], $tabs ) ) {
  87              $current = $_GET['tab'];
  88          } else {
  89              /** This filter is documented in wp-admin/media-upload.php */
  90              $current = apply_filters( 'media_upload_default_tab', $default );
  91          }
  92  
  93          foreach ( $tabs as $callback => $text ) {
  94              $class = '';
  95  
  96              if ( $current == $callback ) {
  97                  $class = " class='current'";
  98              }
  99  
 100              $href = add_query_arg(
 101                  array(
 102                      'tab'            => $callback,
 103                      's'              => false,
 104                      'paged'          => false,
 105                      'post_mime_type' => false,
 106                      'm'              => false,
 107                  )
 108              );
 109              $link = "<a href='" . esc_url( $href ) . "'$class>$text</a>";
 110              echo "\t<li id='" . esc_attr( "tab-$callback" ) . "'>$link</li>\n";
 111          }
 112  
 113          echo "</ul>\n";
 114      }
 115  }
 116  
 117  /**
 118   * Retrieves the image HTML to send to the editor.
 119   *
 120   * @since 2.5.0
 121   *
 122   * @param int          $id      Image attachment ID.
 123   * @param string       $caption Image caption.
 124   * @param string       $title   Image title attribute.
 125   * @param string       $align   Image CSS alignment property.
 126   * @param string       $url     Optional. Image src URL. Default empty.
 127   * @param bool|string  $rel     Optional. Value for rel attribute or whether to add a default value. Default false.
 128   * @param string|int[] $size    Optional. Image size. Accepts any registered image size name, or an array of
 129   *                              width and height values in pixels (in that order). Default 'medium'.
 130   * @param string       $alt     Optional. Image alt attribute. Default empty.
 131   * @return string The HTML output to insert into the editor.
 132   */
 133  function get_image_send_to_editor( $id, $caption, $title, $align, $url = '', $rel = false, $size = 'medium', $alt = '' ) {
 134  
 135      $html = get_image_tag( $id, $alt, '', $align, $size );
 136  
 137      if ( $rel ) {
 138          if ( is_string( $rel ) ) {
 139              $rel = ' rel="' . esc_attr( $rel ) . '"';
 140          } else {
 141              $rel = ' rel="attachment wp-att-' . (int) $id . '"';
 142          }
 143      } else {
 144          $rel = '';
 145      }
 146  
 147      if ( $url ) {
 148          $html = '<a href="' . esc_attr( $url ) . '"' . $rel . '>' . $html . '</a>';
 149      }
 150  
 151      /**
 152       * Filters the image HTML markup to send to the editor when inserting an image.
 153       *
 154       * @since 2.5.0
 155       * @since 5.6.0 The `$rel` parameter was added.
 156       *
 157       * @param string       $html    The image HTML markup to send.
 158       * @param int          $id      The attachment ID.
 159       * @param string       $caption The image caption.
 160       * @param string       $title   The image title.
 161       * @param string       $align   The image alignment.
 162       * @param string       $url     The image source URL.
 163       * @param string|int[] $size    Requested image size. Can be any registered image size name, or
 164       *                              an array of width and height values in pixels (in that order).
 165       * @param string       $alt     The image alternative, or alt, text.
 166       * @param string       $rel     The image rel attribute.
 167       */
 168      $html = apply_filters( 'image_send_to_editor', $html, $id, $caption, $title, $align, $url, $size, $alt, $rel );
 169  
 170      return $html;
 171  }
 172  
 173  /**
 174   * Adds image shortcode with caption to editor.
 175   *
 176   * @since 2.6.0
 177   *
 178   * @param string  $html    The image HTML markup to send.
 179   * @param int     $id      Image attachment ID.
 180   * @param string  $caption Image caption.
 181   * @param string  $title   Image title attribute (not used).
 182   * @param string  $align   Image CSS alignment property.
 183   * @param string  $url     Image source URL (not used).
 184   * @param string  $size    Image size (not used).
 185   * @param string  $alt     Image `alt` attribute (not used).
 186   * @return string The image HTML markup with caption shortcode.
 187   */
 188  function image_add_caption( $html, $id, $caption, $title, $align, $url, $size, $alt = '' ) {
 189  
 190      /**
 191       * Filters the caption text.
 192       *
 193       * Note: If the caption text is empty, the caption shortcode will not be appended
 194       * to the image HTML when inserted into the editor.
 195       *
 196       * Passing an empty value also prevents the {@see 'image_add_caption_shortcode'}
 197       * Filters from being evaluated at the end of image_add_caption().
 198       *
 199       * @since 4.1.0
 200       *
 201       * @param string $caption The original caption text.
 202       * @param int    $id      The attachment ID.
 203       */
 204      $caption = apply_filters( 'image_add_caption_text', $caption, $id );
 205  
 206      /**
 207       * Filters whether to disable captions.
 208       *
 209       * Prevents image captions from being appended to image HTML when inserted into the editor.
 210       *
 211       * @since 2.6.0
 212       *
 213       * @param bool $bool Whether to disable appending captions. Returning true from the filter
 214       *                   will disable captions. Default empty string.
 215       */
 216      if ( empty( $caption ) || apply_filters( 'disable_captions', '' ) ) {
 217          return $html;
 218      }
 219  
 220      $id = ( 0 < (int) $id ) ? 'attachment_' . $id : '';
 221  
 222      if ( ! preg_match( '/width=["\']([0-9]+)/', $html, $matches ) ) {
 223          return $html;
 224      }
 225  
 226      $width = $matches[1];
 227  
 228      $caption = str_replace( array( "\r\n", "\r" ), "\n", $caption );
 229      $caption = preg_replace_callback( '/<[a-zA-Z0-9]+(?: [^<>]+>)*/', '_cleanup_image_add_caption', $caption );
 230  
 231      // Convert any remaining line breaks to <br />.
 232      $caption = preg_replace( '/[ \n\t]*\n[ \t]*/', '<br />', $caption );
 233  
 234      $html = preg_replace( '/(class=["\'][^\'"]*)align(none|left|right|center)\s?/', '$1', $html );
 235      if ( empty( $align ) ) {
 236          $align = 'none';
 237      }
 238  
 239      $shcode = '[caption id="' . $id . '" align="align' . $align . '" width="' . $width . '"]' . $html . ' ' . $caption . '[/caption]';
 240  
 241      /**
 242       * Filters the image HTML markup including the caption shortcode.
 243       *
 244       * @since 2.6.0
 245       *
 246       * @param string $shcode The image HTML markup with caption shortcode.
 247       * @param string $html   The image HTML markup.
 248       */
 249      return apply_filters( 'image_add_caption_shortcode', $shcode, $html );
 250  }
 251  
 252  /**
 253   * Private preg_replace callback used in image_add_caption().
 254   *
 255   * @access private
 256   * @since 3.4.0
 257   */
 258  function _cleanup_image_add_caption( $matches ) {
 259      // Remove any line breaks from inside the tags.
 260      return preg_replace( '/[\r\n\t]+/', ' ', $matches[0] );
 261  }
 262  
 263  /**
 264   * Adds image HTML to editor.
 265   *
 266   * @since 2.5.0
 267   *
 268   * @param string $html
 269   */
 270  function media_send_to_editor( $html ) {
 271      ?>
 272      <script type="text/javascript">
 273      var win = window.dialogArguments || opener || parent || top;
 274      win.send_to_editor( <?php echo wp_json_encode( $html ); ?> );
 275      </script>
 276      <?php
 277      exit;
 278  }
 279  
 280  /**
 281   * Saves a file submitted from a POST request and create an attachment post for it.
 282   *
 283   * @since 2.5.0
 284   *
 285   * @param string $file_id   Index of the `$_FILES` array that the file was sent.
 286   * @param int    $post_id   The post ID of a post to attach the media item to. Required, but can
 287   *                          be set to 0, creating a media item that has no relationship to a post.
 288   * @param array  $post_data Optional. Overwrite some of the attachment.
 289   * @param array  $overrides Optional. Override the wp_handle_upload() behavior.
 290   * @return int|WP_Error ID of the attachment or a WP_Error object on failure.
 291   */
 292  function media_handle_upload( $file_id, $post_id, $post_data = array(), $overrides = array( 'test_form' => false ) ) {
 293      $time = current_time( 'mysql' );
 294      $post = get_post( $post_id );
 295  
 296      if ( $post ) {
 297          // The post date doesn't usually matter for pages, so don't backdate this upload.
 298          if ( 'page' !== $post->post_type && substr( $post->post_date, 0, 4 ) > 0 ) {
 299              $time = $post->post_date;
 300          }
 301      }
 302  
 303      $file = wp_handle_upload( $_FILES[ $file_id ], $overrides, $time );
 304  
 305      if ( isset( $file['error'] ) ) {
 306          return new WP_Error( 'upload_error', $file['error'] );
 307      }
 308  
 309      $name = $_FILES[ $file_id ]['name'];
 310      $ext  = pathinfo( $name, PATHINFO_EXTENSION );
 311      $name = wp_basename( $name, ".$ext" );
 312  
 313      $url     = $file['url'];
 314      $type    = $file['type'];
 315      $file    = $file['file'];
 316      $title   = sanitize_text_field( $name );
 317      $content = '';
 318      $excerpt = '';
 319  
 320      if ( preg_match( '#^audio#', $type ) ) {
 321          $meta = wp_read_audio_metadata( $file );
 322  
 323          if ( ! empty( $meta['title'] ) ) {
 324              $title = $meta['title'];
 325          }
 326  
 327          if ( ! empty( $title ) ) {
 328  
 329              if ( ! empty( $meta['album'] ) && ! empty( $meta['artist'] ) ) {
 330                  /* translators: 1: Audio track title, 2: Album title, 3: Artist name. */
 331                  $content .= sprintf( __( '"%1$s" from %2$s by %3$s.' ), $title, $meta['album'], $meta['artist'] );
 332              } elseif ( ! empty( $meta['album'] ) ) {
 333                  /* translators: 1: Audio track title, 2: Album title. */
 334                  $content .= sprintf( __( '"%1$s" from %2$s.' ), $title, $meta['album'] );
 335              } elseif ( ! empty( $meta['artist'] ) ) {
 336                  /* translators: 1: Audio track title, 2: Artist name. */
 337                  $content .= sprintf( __( '"%1$s" by %2$s.' ), $title, $meta['artist'] );
 338              } else {
 339                  /* translators: %s: Audio track title. */
 340                  $content .= sprintf( __( '"%s".' ), $title );
 341              }
 342          } elseif ( ! empty( $meta['album'] ) ) {
 343  
 344              if ( ! empty( $meta['artist'] ) ) {
 345                  /* translators: 1: Audio album title, 2: Artist name. */
 346                  $content .= sprintf( __( '%1$s by %2$s.' ), $meta['album'], $meta['artist'] );
 347              } else {
 348                  $content .= $meta['album'] . '.';
 349              }
 350          } elseif ( ! empty( $meta['artist'] ) ) {
 351  
 352              $content .= $meta['artist'] . '.';
 353  
 354          }
 355  
 356          if ( ! empty( $meta['year'] ) ) {
 357              /* translators: Audio file track information. %d: Year of audio track release. */
 358              $content .= ' ' . sprintf( __( 'Released: %d.' ), $meta['year'] );
 359          }
 360  
 361          if ( ! empty( $meta['track_number'] ) ) {
 362              $track_number = explode( '/', $meta['track_number'] );
 363  
 364              if ( is_numeric( $track_number[0] ) ) {
 365                  if ( isset( $track_number[1] ) && is_numeric( $track_number[1] ) ) {
 366                      $content .= ' ' . sprintf(
 367                          /* translators: Audio file track information. 1: Audio track number, 2: Total audio tracks. */
 368                          __( 'Track %1$s of %2$s.' ),
 369                          number_format_i18n( $track_number[0] ),
 370                          number_format_i18n( $track_number[1] )
 371                      );
 372                  } else {
 373                      $content .= ' ' . sprintf(
 374                          /* translators: Audio file track information. %s: Audio track number. */
 375                          __( 'Track %s.' ),
 376                          number_format_i18n( $track_number[0] )
 377                      );
 378                  }
 379              }
 380          }
 381  
 382          if ( ! empty( $meta['genre'] ) ) {
 383              /* translators: Audio file genre information. %s: Audio genre name. */
 384              $content .= ' ' . sprintf( __( 'Genre: %s.' ), $meta['genre'] );
 385          }
 386  
 387          // Use image exif/iptc data for title and caption defaults if possible.
 388      } elseif ( 0 === strpos( $type, 'image/' ) ) {
 389          $image_meta = wp_read_image_metadata( $file );
 390  
 391          if ( $image_meta ) {
 392              if ( trim( $image_meta['title'] ) && ! is_numeric( sanitize_title( $image_meta['title'] ) ) ) {
 393                  $title = $image_meta['title'];
 394              }
 395  
 396              if ( trim( $image_meta['caption'] ) ) {
 397                  $excerpt = $image_meta['caption'];
 398              }
 399          }
 400      }
 401  
 402      // Construct the attachment array.
 403      $attachment = array_merge(
 404          array(
 405              'post_mime_type' => $type,
 406              'guid'           => $url,
 407              'post_parent'    => $post_id,
 408              'post_title'     => $title,
 409              'post_content'   => $content,
 410              'post_excerpt'   => $excerpt,
 411          ),
 412          $post_data
 413      );
 414  
 415      // This should never be set as it would then overwrite an existing attachment.
 416      unset( $attachment['ID'] );
 417  
 418      // Save the data.
 419      $attachment_id = wp_insert_attachment( $attachment, $file, $post_id, true );
 420  
 421      if ( ! is_wp_error( $attachment_id ) ) {
 422          // Set a custom header with the attachment_id.
 423          // Used by the browser/client to resume creating image sub-sizes after a PHP fatal error.
 424          if ( ! headers_sent() ) {
 425              header( 'X-WP-Upload-Attachment-ID: ' . $attachment_id );
 426          }
 427  
 428          // The image sub-sizes are created during wp_generate_attachment_metadata().
 429          // This is generally slow and may cause timeouts or out of memory errors.
 430          wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) );
 431      }
 432  
 433      return $attachment_id;
 434  }
 435  
 436  /**
 437   * Handles a side-loaded file in the same way as an uploaded file is handled by media_handle_upload().
 438   *
 439   * @since 2.6.0
 440   * @since 5.3.0 The `$post_id` parameter was made optional.
 441   *
 442   * @param string[] $file_array Array that represents a `$_FILES` upload array.
 443   * @param int      $post_id    Optional. The post ID the media is associated with.
 444   * @param string   $desc       Optional. Description of the side-loaded file. Default null.
 445   * @param array    $post_data  Optional. Post data to override. Default empty array.
 446   * @return int|WP_Error The ID of the attachment or a WP_Error on failure.
 447   */
 448  function media_handle_sideload( $file_array, $post_id = 0, $desc = null, $post_data = array() ) {
 449      $overrides = array( 'test_form' => false );
 450  
 451      if ( isset( $post_data['post_date'] ) && substr( $post_data['post_date'], 0, 4 ) > 0 ) {
 452          $time = $post_data['post_date'];
 453      } else {
 454          $post = get_post( $post_id );
 455          if ( $post && substr( $post->post_date, 0, 4 ) > 0 ) {
 456              $time = $post->post_date;
 457          } else {
 458              $time = current_time( 'mysql' );
 459          }
 460      }
 461  
 462      $file = wp_handle_sideload( $file_array, $overrides, $time );
 463  
 464      if ( isset( $file['error'] ) ) {
 465          return new WP_Error( 'upload_error', $file['error'] );
 466      }
 467  
 468      $url     = $file['url'];
 469      $type    = $file['type'];
 470      $file    = $file['file'];
 471      $title   = preg_replace( '/\.[^.]+$/', '', wp_basename( $file ) );
 472      $content = '';
 473  
 474      // Use image exif/iptc data for title and caption defaults if possible.
 475      $image_meta = wp_read_image_metadata( $file );
 476  
 477      if ( $image_meta ) {
 478          if ( trim( $image_meta['title'] ) && ! is_numeric( sanitize_title( $image_meta['title'] ) ) ) {
 479              $title = $image_meta['title'];
 480          }
 481  
 482          if ( trim( $image_meta['caption'] ) ) {
 483              $content = $image_meta['caption'];
 484          }
 485      }
 486  
 487      if ( isset( $desc ) ) {
 488          $title = $desc;
 489      }
 490  
 491      // Construct the attachment array.
 492      $attachment = array_merge(
 493          array(
 494              'post_mime_type' => $type,
 495              'guid'           => $url,
 496              'post_parent'    => $post_id,
 497              'post_title'     => $title,
 498              'post_content'   => $content,
 499          ),
 500          $post_data
 501      );
 502  
 503      // This should never be set as it would then overwrite an existing attachment.
 504      unset( $attachment['ID'] );
 505  
 506      // Save the attachment metadata.
 507      $attachment_id = wp_insert_attachment( $attachment, $file, $post_id, true );
 508  
 509      if ( ! is_wp_error( $attachment_id ) ) {
 510          wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) );
 511      }
 512  
 513      return $attachment_id;
 514  }
 515  
 516  /**
 517   * Outputs the iframe to display the media upload page.
 518   *
 519   * @since 2.5.0
 520   * @since 5.3.0 Formalized the existing and already documented `...$args` parameter
 521   *              by adding it to the function signature.
 522   *
 523   * @global int $body_id
 524   *
 525   * @param callable $content_func Function that outputs the content.
 526   * @param mixed    ...$args      Optional additional parameters to pass to the callback function when it's called.
 527   */
 528  function wp_iframe( $content_func, ...$args ) {
 529      _wp_admin_html_begin();
 530      ?>
 531      <title><?php bloginfo( 'name' ); ?> &rsaquo; <?php _e( 'Uploads' ); ?> &#8212; <?php _e( 'WordPress' ); ?></title>
 532      <?php
 533  
 534      wp_enqueue_style( 'colors' );
 535      // Check callback name for 'media'.
 536      if (
 537          ( is_array( $content_func ) && ! empty( $content_func[1] ) && 0 === strpos( (string) $content_func[1], 'media' ) ) ||
 538          ( ! is_array( $content_func ) && 0 === strpos( $content_func, 'media' ) )
 539      ) {
 540          wp_enqueue_style( 'deprecated-media' );
 541      }
 542  
 543      ?>
 544      <script type="text/javascript">
 545      addLoadEvent = function(func){if(typeof jQuery!=='undefined')jQuery(function(){func();});else if(typeof wpOnload!=='function'){wpOnload=func;}else{var oldonload=wpOnload;wpOnload=function(){oldonload();func();}}};
 546      var ajaxurl = '<?php echo esc_js( admin_url( 'admin-ajax.php', 'relative' ) ); ?>', pagenow = 'media-upload-popup', adminpage = 'media-upload-popup',
 547      isRtl = <?php echo (int) is_rtl(); ?>;
 548      </script>
 549      <?php
 550      /** This action is documented in wp-admin/admin-header.php */
 551      do_action( 'admin_enqueue_scripts', 'media-upload-popup' );
 552  
 553      /**
 554       * Fires when admin styles enqueued for the legacy (pre-3.5.0) media upload popup are printed.
 555       *
 556       * @since 2.9.0
 557       */
 558      do_action( 'admin_print_styles-media-upload-popup' );  // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
 559  
 560      /** This action is documented in wp-admin/admin-header.php */
 561      do_action( 'admin_print_styles' );
 562  
 563      /**
 564       * Fires when admin scripts enqueued for the legacy (pre-3.5.0) media upload popup are printed.
 565       *
 566       * @since 2.9.0
 567       */
 568      do_action( 'admin_print_scripts-media-upload-popup' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
 569  
 570      /** This action is documented in wp-admin/admin-header.php */
 571      do_action( 'admin_print_scripts' );
 572  
 573      /**
 574       * Fires when scripts enqueued for the admin header for the legacy (pre-3.5.0)
 575       * media upload popup are printed.
 576       *
 577       * @since 2.9.0
 578       */
 579      do_action( 'admin_head-media-upload-popup' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
 580  
 581      /** This action is documented in wp-admin/admin-header.php */
 582      do_action( 'admin_head' );
 583  
 584      if ( is_string( $content_func ) ) {
 585          /**
 586           * Fires in the admin header for each specific form tab in the legacy
 587           * (pre-3.5.0) media upload popup.
 588           *
 589           * The dynamic portion of the hook name, `$content_func`, refers to the form
 590           * callback for the media upload type.
 591           *
 592           * @since 2.5.0
 593           */
 594          do_action( "admin_head_{$content_func}" );
 595      }
 596  
 597      $body_id_attr = '';
 598  
 599      if ( isset( $GLOBALS['body_id'] ) ) {
 600          $body_id_attr = ' id="' . $GLOBALS['body_id'] . '"';
 601      }
 602  
 603      ?>
 604      </head>
 605      <body<?php echo $body_id_attr; ?> class="wp-core-ui no-js">
 606      <script type="text/javascript">
 607      document.body.className = document.body.className.replace('no-js', 'js');
 608      </script>
 609      <?php
 610  
 611      call_user_func_array( $content_func, $args );
 612  
 613      /** This action is documented in wp-admin/admin-footer.php */
 614      do_action( 'admin_print_footer_scripts' );
 615  
 616      ?>
 617      <script type="text/javascript">if(typeof wpOnload==='function')wpOnload();</script>
 618      </body>
 619      </html>
 620      <?php
 621  }
 622  
 623  /**
 624   * Adds the media button to the editor.
 625   *
 626   * @since 2.5.0
 627   *
 628   * @global int $post_ID
 629   *
 630   * @param string $editor_id
 631   */
 632  function media_buttons( $editor_id = 'content' ) {
 633      static $instance = 0;
 634      $instance++;
 635  
 636      $post = get_post();
 637  
 638      if ( ! $post && ! empty( $GLOBALS['post_ID'] ) ) {
 639          $post = $GLOBALS['post_ID'];
 640      }
 641  
 642      wp_enqueue_media( array( 'post' => $post ) );
 643  
 644      $img = '<span class="wp-media-buttons-icon"></span> ';
 645  
 646      $id_attribute = 1 === $instance ? ' id="insert-media-button"' : '';
 647  
 648      printf(
 649          '<button type="button"%s class="button insert-media add_media" data-editor="%s">%s</button>',
 650          $id_attribute,
 651          esc_attr( $editor_id ),
 652          $img . __( 'Add Media' )
 653      );
 654  
 655      /**
 656       * Filters the legacy (pre-3.5.0) media buttons.
 657       *
 658       * Use {@see 'media_buttons'} action instead.
 659       *
 660       * @since 2.5.0
 661       * @deprecated 3.5.0 Use {@see 'media_buttons'} action instead.
 662       *
 663       * @param string $string Media buttons context. Default empty.
 664       */
 665      $legacy_filter = apply_filters_deprecated( 'media_buttons_context', array( '' ), '3.5.0', 'media_buttons' );
 666  
 667      if ( $legacy_filter ) {
 668          // #WP22559. Close <a> if a plugin started by closing <a> to open their own <a> tag.
 669          if ( 0 === stripos( trim( $legacy_filter ), '</a>' ) ) {
 670              $legacy_filter .= '</a>';
 671          }
 672          echo $legacy_filter;
 673      }
 674  }
 675  
 676  /**
 677   * @global int $post_ID
 678   * @param string $type
 679   * @param int    $post_id
 680   * @param string $tab
 681   * @return string
 682   */
 683  function get_upload_iframe_src( $type = null, $post_id = null, $tab = null ) {
 684      global $post_ID;
 685  
 686      if ( empty( $post_id ) ) {
 687          $post_id = $post_ID;
 688      }
 689  
 690      $upload_iframe_src = add_query_arg( 'post_id', (int) $post_id, admin_url( 'media-upload.php' ) );
 691  
 692      if ( $type && 'media' !== $type ) {
 693          $upload_iframe_src = add_query_arg( 'type', $type, $upload_iframe_src );
 694      }
 695  
 696      if ( ! empty( $tab ) ) {
 697          $upload_iframe_src = add_query_arg( 'tab', $tab, $upload_iframe_src );
 698      }
 699  
 700      /**
 701       * Filters the upload iframe source URL for a specific media type.
 702       *
 703       * The dynamic portion of the hook name, `$type`, refers to the type
 704       * of media uploaded.
 705       *
 706       * Possible hook names include:
 707       *
 708       *  - `image_upload_iframe_src`
 709       *  - `media_upload_iframe_src`
 710       *
 711       * @since 3.0.0
 712       *
 713       * @param string $upload_iframe_src The upload iframe source URL.
 714       */
 715      $upload_iframe_src = apply_filters( "{$type}_upload_iframe_src", $upload_iframe_src );
 716  
 717      return add_query_arg( 'TB_iframe', true, $upload_iframe_src );
 718  }
 719  
 720  /**
 721   * Handles form submissions for the legacy media uploader.
 722   *
 723   * @since 2.5.0
 724   *
 725   * @return null|array|void Array of error messages keyed by attachment ID, null or void on success.
 726   */
 727  function media_upload_form_handler() {
 728      check_admin_referer( 'media-form' );
 729  
 730      $errors = null;
 731  
 732      if ( isset( $_POST['send'] ) ) {
 733          $keys    = array_keys( $_POST['send'] );
 734          $send_id = (int) reset( $keys );
 735      }
 736  
 737      if ( ! empty( $_POST['attachments'] ) ) {
 738          foreach ( $_POST['attachments'] as $attachment_id => $attachment ) {
 739              $post  = get_post( $attachment_id, ARRAY_A );
 740              $_post = $post;
 741  
 742              if ( ! current_user_can( 'edit_post', $attachment_id ) ) {
 743                  continue;
 744              }
 745  
 746              if ( isset( $attachment['post_content'] ) ) {
 747                  $post['post_content'] = $attachment['post_content'];
 748              }
 749  
 750              if ( isset( $attachment['post_title'] ) ) {
 751                  $post['post_title'] = $attachment['post_title'];
 752              }
 753  
 754              if ( isset( $attachment['post_excerpt'] ) ) {
 755                  $post['post_excerpt'] = $attachment['post_excerpt'];
 756              }
 757  
 758              if ( isset( $attachment['menu_order'] ) ) {
 759                  $post['menu_order'] = $attachment['menu_order'];
 760              }
 761  
 762              if ( isset( $send_id ) && $attachment_id == $send_id ) {
 763                  if ( isset( $attachment['post_parent'] ) ) {
 764                      $post['post_parent'] = $attachment['post_parent'];
 765                  }
 766              }
 767  
 768              /**
 769               * Filters the attachment fields to be saved.
 770               *
 771               * @since 2.5.0
 772               *
 773               * @see wp_get_attachment_metadata()
 774               *
 775               * @param array $post       An array of post data.
 776               * @param array $attachment An array of attachment metadata.
 777               */
 778              $post = apply_filters( 'attachment_fields_to_save', $post, $attachment );
 779  
 780              if ( isset( $attachment['image_alt'] ) ) {
 781                  $image_alt = wp_unslash( $attachment['image_alt'] );
 782  
 783                  if ( get_post_meta( $attachment_id, '_wp_attachment_image_alt', true ) !== $image_alt ) {
 784                      $image_alt = wp_strip_all_tags( $image_alt, true );
 785  
 786                      // update_post_meta() expects slashed.
 787                      update_post_meta( $attachment_id, '_wp_attachment_image_alt', wp_slash( $image_alt ) );
 788                  }
 789              }
 790  
 791              if ( isset( $post['errors'] ) ) {
 792                  $errors[ $attachment_id ] = $post['errors'];
 793                  unset( $post['errors'] );
 794              }
 795  
 796              if ( $post != $_post ) {
 797                  wp_update_post( $post );
 798              }
 799  
 800              foreach ( get_attachment_taxonomies( $post ) as $t ) {
 801                  if ( isset( $attachment[ $t ] ) ) {
 802                      wp_set_object_terms( $attachment_id, array_map( 'trim', preg_split( '/,+/', $attachment[ $t ] ) ), $t, false );
 803                  }
 804              }
 805          }
 806      }
 807  
 808      if ( isset( $_POST['insert-gallery'] ) || isset( $_POST['update-gallery'] ) ) {
 809          ?>
 810          <script type="text/javascript">
 811          var win = window.dialogArguments || opener || parent || top;
 812          win.tb_remove();
 813          </script>
 814          <?php
 815  
 816          exit;
 817      }
 818  
 819      if ( isset( $send_id ) ) {
 820          $attachment = wp_unslash( $_POST['attachments'][ $send_id ] );
 821          $html       = isset( $attachment['post_title'] ) ? $attachment['post_title'] : '';
 822  
 823          if ( ! empty( $attachment['url'] ) ) {
 824              $rel = '';
 825  
 826              if ( strpos( $attachment['url'], 'attachment_id' ) || get_attachment_link( $send_id ) == $attachment['url'] ) {
 827                  $rel = " rel='attachment wp-att-" . esc_attr( $send_id ) . "'";
 828              }
 829  
 830              $html = "<a href='{$attachment['url']}'$rel>$html</a>";
 831          }
 832  
 833          /**
 834           * Filters the HTML markup for a media item sent to the editor.
 835           *
 836           * @since 2.5.0
 837           *
 838           * @see wp_get_attachment_metadata()
 839           *
 840           * @param string $html       HTML markup for a media item sent to the editor.
 841           * @param int    $send_id    The first key from the $_POST['send'] data.
 842           * @param array  $attachment Array of attachment metadata.
 843           */
 844          $html = apply_filters( 'media_send_to_editor', $html, $send_id, $attachment );
 845  
 846          return media_send_to_editor( $html );
 847      }
 848  
 849      return $errors;
 850  }
 851  
 852  /**
 853   * Handles the process of uploading media.
 854   *
 855   * @since 2.5.0
 856   *
 857   * @return null|string
 858   */
 859  function wp_media_upload_handler() {
 860      $errors = array();
 861      $id     = 0;
 862  
 863      if ( isset( $_POST['html-upload'] ) && ! empty( $_FILES ) ) {
 864          check_admin_referer( 'media-form' );
 865          // Upload File button was clicked.
 866          $id = media_handle_upload( 'async-upload', $_REQUEST['post_id'] );
 867          unset( $_FILES );
 868  
 869          if ( is_wp_error( $id ) ) {
 870              $errors['upload_error'] = $id;
 871              $id                     = false;
 872          }
 873      }
 874  
 875      if ( ! empty( $_POST['insertonlybutton'] ) ) {
 876          $src = $_POST['src'];
 877  
 878          if ( ! empty( $src ) && ! strpos( $src, '://' ) ) {
 879              $src = "http://$src";
 880          }
 881  
 882          if ( isset( $_POST['media_type'] ) && 'image' !== $_POST['media_type'] ) {
 883              $title = esc_html( wp_unslash( $_POST['title'] ) );
 884              if ( empty( $title ) ) {
 885                  $title = esc_html( wp_basename( $src ) );
 886              }
 887  
 888              if ( $title && $src ) {
 889                  $html = "<a href='" . esc_url( $src ) . "'>$title</a>";
 890              }
 891  
 892              $type = 'file';
 893              $ext  = preg_replace( '/^.+?\.([^.]+)$/', '$1', $src );
 894  
 895              if ( $ext ) {
 896                  $ext_type = wp_ext2type( $ext );
 897                  if ( 'audio' === $ext_type || 'video' === $ext_type ) {
 898                      $type = $ext_type;
 899                  }
 900              }
 901  
 902              /**
 903               * Filters the URL sent to the editor for a specific media type.
 904               *
 905               * The dynamic portion of the hook name, `$type`, refers to the type
 906               * of media being sent.
 907               *
 908               * Possible hook names include:
 909               *
 910               *  - `audio_send_to_editor_url`
 911               *  - `file_send_to_editor_url`
 912               *  - `video_send_to_editor_url`
 913               *
 914               * @since 3.3.0
 915               *
 916               * @param string $html  HTML markup sent to the editor.
 917               * @param string $src   Media source URL.
 918               * @param string $title Media title.
 919               */
 920              $html = apply_filters( "{$type}_send_to_editor_url", $html, esc_url_raw( $src ), $title );
 921          } else {
 922              $align = '';
 923              $alt   = esc_attr( wp_unslash( $_POST['alt'] ) );
 924  
 925              if ( isset( $_POST['align'] ) ) {
 926                  $align = esc_attr( wp_unslash( $_POST['align'] ) );
 927                  $class = " class='align$align'";
 928              }
 929  
 930              if ( ! empty( $src ) ) {
 931                  $html = "<img src='" . esc_url( $src ) . "' alt='$alt'$class />";
 932              }
 933  
 934              /**
 935               * Filters the image URL sent to the editor.
 936               *
 937               * @since 2.8.0
 938               *
 939               * @param string $html  HTML markup sent to the editor for an image.
 940               * @param string $src   Image source URL.
 941               * @param string $alt   Image alternate, or alt, text.
 942               * @param string $align The image alignment. Default 'alignnone'. Possible values include
 943               *                      'alignleft', 'aligncenter', 'alignright', 'alignnone'.
 944               */
 945              $html = apply_filters( 'image_send_to_editor_url', $html, esc_url_raw( $src ), $alt, $align );
 946          }
 947  
 948          return media_send_to_editor( $html );
 949      }
 950  
 951      if ( isset( $_POST['save'] ) ) {
 952          $errors['upload_notice'] = __( 'Saved.' );
 953          wp_enqueue_script( 'admin-gallery' );
 954  
 955          return wp_iframe( 'media_upload_gallery_form', $errors );
 956  
 957      } elseif ( ! empty( $_POST ) ) {
 958          $return = media_upload_form_handler();
 959  
 960          if ( is_string( $return ) ) {
 961              return $return;
 962          }
 963  
 964          if ( is_array( $return ) ) {
 965              $errors = $return;
 966          }
 967      }
 968  
 969      if ( isset( $_GET['tab'] ) && 'type_url' === $_GET['tab'] ) {
 970          $type = 'image';
 971  
 972          if ( isset( $_GET['type'] ) && in_array( $_GET['type'], array( 'video', 'audio', 'file' ), true ) ) {
 973              $type = $_GET['type'];
 974          }
 975  
 976          return wp_iframe( 'media_upload_type_url_form', $type, $errors, $id );
 977      }
 978  
 979      return wp_iframe( 'media_upload_type_form', 'image', $errors, $id );
 980  }
 981  
 982  /**
 983   * Downloads an image from the specified URL, saves it as an attachment, and optionally attaches it to a post.
 984   *
 985   * @since 2.6.0
 986   * @since 4.2.0 Introduced the `$return_type` parameter.
 987   * @since 4.8.0 Introduced the 'id' option for the `$return_type` parameter.
 988   * @since 5.3.0 The `$post_id` parameter was made optional.
 989   * @since 5.4.0 The original URL of the attachment is stored in the `_source_url`
 990   *              post meta value.
 991   *
 992   * @param string $file        The URL of the image to download.
 993   * @param int    $post_id     Optional. The post ID the media is to be associated with.
 994   * @param string $desc        Optional. Description of the image.
 995   * @param string $return_type Optional. Accepts 'html' (image tag html) or 'src' (URL),
 996   *                            or 'id' (attachment ID). Default 'html'.
 997   * @return string|int|WP_Error Populated HTML img tag, attachment ID, or attachment source
 998   *                             on success, WP_Error object otherwise.
 999   */
1000  function media_sideload_image( $file, $post_id = 0, $desc = null, $return_type = 'html' ) {
1001      if ( ! empty( $file ) ) {
1002  
1003          $allowed_extensions = array( 'jpg', 'jpeg', 'jpe', 'png', 'gif', 'webp' );
1004  
1005          /**
1006           * Filters the list of allowed file extensions when sideloading an image from a URL.
1007           *
1008           * The default allowed extensions are:
1009           *
1010           *  - `jpg`
1011           *  - `jpeg`
1012           *  - `jpe`
1013           *  - `png`
1014           *  - `gif`
1015           *
1016           * @since 5.6.0
1017           *
1018           * @param string[] $allowed_extensions Array of allowed file extensions.
1019           * @param string   $file               The URL of the image to download.
1020           */
1021          $allowed_extensions = apply_filters( 'image_sideload_extensions', $allowed_extensions, $file );
1022          $allowed_extensions = array_map( 'preg_quote', $allowed_extensions );
1023  
1024          // Set variables for storage, fix file filename for query strings.
1025          preg_match( '/[^\?]+\.(' . implode( '|', $allowed_extensions ) . ')\b/i', $file, $matches );
1026  
1027          if ( ! $matches ) {
1028              return new WP_Error( 'image_sideload_failed', __( 'Invalid image URL.' ) );
1029          }
1030  
1031          $file_array         = array();
1032          $file_array['name'] = wp_basename( $matches[0] );
1033  
1034          // Download file to temp location.
1035          $file_array['tmp_name'] = download_url( $file );
1036  
1037          // If error storing temporarily, return the error.
1038          if ( is_wp_error( $file_array['tmp_name'] ) ) {
1039              return $file_array['tmp_name'];
1040          }
1041  
1042          // Do the validation and storage stuff.
1043          $id = media_handle_sideload( $file_array, $post_id, $desc );
1044  
1045          // If error storing permanently, unlink.
1046          if ( is_wp_error( $id ) ) {
1047              @unlink( $file_array['tmp_name'] );
1048              return $id;
1049          }
1050  
1051          // Store the original attachment source in meta.
1052          add_post_meta( $id, '_source_url', $file );
1053  
1054          // If attachment ID was requested, return it.
1055          if ( 'id' === $return_type ) {
1056              return $id;
1057          }
1058  
1059          $src = wp_get_attachment_url( $id );
1060      }
1061  
1062      // Finally, check to make sure the file has been saved, then return the HTML.
1063      if ( ! empty( $src ) ) {
1064          if ( 'src' === $return_type ) {
1065              return $src;
1066          }
1067  
1068          $alt  = isset( $desc ) ? esc_attr( $desc ) : '';
1069          $html = "<img src='$src' alt='$alt' />";
1070  
1071          return $html;
1072      } else {
1073          return new WP_Error( 'image_sideload_failed' );
1074      }
1075  }
1076  
1077  /**
1078   * Retrieves the legacy media uploader form in an iframe.
1079   *
1080   * @since 2.5.0
1081   *
1082   * @return string|null
1083   */
1084  function media_upload_gallery() {
1085      $errors = array();
1086  
1087      if ( ! empty( $_POST ) ) {
1088          $return = media_upload_form_handler();
1089  
1090          if ( is_string( $return ) ) {
1091              return $return;
1092          }
1093  
1094          if ( is_array( $return ) ) {
1095              $errors = $return;
1096          }
1097      }
1098  
1099      wp_enqueue_script( 'admin-gallery' );
1100      return wp_iframe( 'media_upload_gallery_form', $errors );
1101  }
1102  
1103  /**
1104   * Retrieves the legacy media library form in an iframe.
1105   *
1106   * @since 2.5.0
1107   *
1108   * @return string|null
1109   */
1110  function media_upload_library() {
1111      $errors = array();
1112  
1113      if ( ! empty( $_POST ) ) {
1114          $return = media_upload_form_handler();
1115  
1116          if ( is_string( $return ) ) {
1117              return $return;
1118          }
1119          if ( is_array( $return ) ) {
1120              $errors = $return;
1121          }
1122      }
1123  
1124      return wp_iframe( 'media_upload_library_form', $errors );
1125  }
1126  
1127  /**
1128   * Retrieves HTML for the image alignment radio buttons with the specified one checked.
1129   *
1130   * @since 2.7.0
1131   *
1132   * @param WP_Post $post
1133   * @param string  $checked
1134   * @return string
1135   */
1136  function image_align_input_fields( $post, $checked = '' ) {
1137  
1138      if ( empty( $checked ) ) {
1139          $checked = get_user_setting( 'align', 'none' );
1140      }
1141  
1142      $alignments = array(
1143          'none'   => __( 'None' ),
1144          'left'   => __( 'Left' ),
1145          'center' => __( 'Center' ),
1146          'right'  => __( 'Right' ),
1147      );
1148  
1149      if ( ! array_key_exists( (string) $checked, $alignments ) ) {
1150          $checked = 'none';
1151      }
1152  
1153      $out = array();
1154  
1155      foreach ( $alignments as $name => $label ) {
1156          $name  = esc_attr( $name );
1157          $out[] = "<input type='radio' name='attachments[{$post->ID}][align]' id='image-align-{$name}-{$post->ID}' value='$name'" .
1158              ( $checked == $name ? " checked='checked'" : '' ) .
1159              " /><label for='image-align-{$name}-{$post->ID}' class='align image-align-{$name}-label'>$label</label>";
1160      }
1161  
1162      return implode( "\n", $out );
1163  }
1164  
1165  /**
1166   * Retrieves HTML for the size radio buttons with the specified one checked.
1167   *
1168   * @since 2.7.0
1169   *
1170   * @param WP_Post     $post
1171   * @param bool|string $check
1172   * @return array
1173   */
1174  function image_size_input_fields( $post, $check = '' ) {
1175      /**
1176       * Filters the names and labels of the default image sizes.
1177       *
1178       * @since 3.3.0
1179       *
1180       * @param string[] $size_names Array of image size labels keyed by their name. Default values
1181       *                             include 'Thumbnail', 'Medium', 'Large', and 'Full Size'.
1182       */
1183      $size_names = apply_filters(
1184          'image_size_names_choose',
1185          array(
1186              'thumbnail' => __( 'Thumbnail' ),
1187              'medium'    => __( 'Medium' ),
1188              'large'     => __( 'Large' ),
1189              'full'      => __( 'Full Size' ),
1190          )
1191      );
1192  
1193      if ( empty( $check ) ) {
1194          $check = get_user_setting( 'imgsize', 'medium' );
1195      }
1196  
1197      $out = array();
1198  
1199      foreach ( $size_names as $size => $label ) {
1200          $downsize = image_downsize( $post->ID, $size );
1201          $checked  = '';
1202  
1203          // Is this size selectable?
1204          $enabled = ( $downsize[3] || 'full' === $size );
1205          $css_id  = "image-size-{$size}-{$post->ID}";
1206  
1207          // If this size is the default but that's not available, don't select it.
1208          if ( $size == $check ) {
1209              if ( $enabled ) {
1210                  $checked = " checked='checked'";
1211              } else {
1212                  $check = '';
1213              }
1214          } elseif ( ! $check && $enabled && 'thumbnail' !== $size ) {
1215              /*
1216               * If $check is not enabled, default to the first available size
1217               * that's bigger than a thumbnail.
1218               */
1219              $check   = $size;
1220              $checked = " checked='checked'";
1221          }
1222  
1223          $html = "<div class='image-size-item'><input type='radio' " . disabled( $enabled, false, false ) . "name='attachments[$post->ID][image-size]' id='{$css_id}' value='{$size}'$checked />";
1224  
1225          $html .= "<label for='{$css_id}'>$label</label>";
1226  
1227          // Only show the dimensions if that choice is available.
1228          if ( $enabled ) {
1229              $html .= " <label for='{$css_id}' class='help'>" . sprintf( '(%d&nbsp;&times;&nbsp;%d)', $downsize[1], $downsize[2] ) . '</label>';
1230          }
1231          $html .= '</div>';
1232  
1233          $out[] = $html;
1234      }
1235  
1236      return array(
1237          'label' => __( 'Size' ),
1238          'input' => 'html',
1239          'html'  => implode( "\n", $out ),
1240      );
1241  }
1242  
1243  /**
1244   * Retrieves HTML for the Link URL buttons with the default link type as specified.
1245   *
1246   * @since 2.7.0
1247   *
1248   * @param WP_Post $post
1249   * @param string  $url_type
1250   * @return string
1251   */
1252  function image_link_input_fields( $post, $url_type = '' ) {
1253  
1254      $file = wp_get_attachment_url( $post->ID );
1255      $link = get_attachment_link( $post->ID );
1256  
1257      if ( empty( $url_type ) ) {
1258          $url_type = get_user_setting( 'urlbutton', 'post' );
1259      }
1260  
1261      $url = '';
1262  
1263      if ( 'file' === $url_type ) {
1264          $url = $file;
1265      } elseif ( 'post' === $url_type ) {
1266          $url = $link;
1267      }
1268  
1269      return "
1270      <input type='text' class='text urlfield' name='attachments[$post->ID][url]' value='" . esc_attr( $url ) . "' /><br />
1271      <button type='button' class='button urlnone' data-link-url=''>" . __( 'None' ) . "</button>
1272      <button type='button' class='button urlfile' data-link-url='" . esc_attr( $file ) . "'>" . __( 'File URL' ) . "</button>
1273      <button type='button' class='button urlpost' data-link-url='" . esc_attr( $link ) . "'>" . __( 'Attachment Post URL' ) . '</button>
1274  ';
1275  }
1276  
1277  /**
1278   * Outputs a textarea element for inputting an attachment caption.
1279   *
1280   * @since 3.4.0
1281   *
1282   * @param WP_Post $edit_post Attachment WP_Post object.
1283   * @return string HTML markup for the textarea element.
1284   */
1285  function wp_caption_input_textarea( $edit_post ) {
1286      // Post data is already escaped.
1287      $name = "attachments[{$edit_post->ID}][post_excerpt]";
1288  
1289      return '<textarea name="' . $name . '" id="' . $name . '">' . $edit_post->post_excerpt . '</textarea>';
1290  }
1291  
1292  /**
1293   * Retrieves the image attachment fields to edit form fields.
1294   *
1295   * @since 2.5.0
1296   *
1297   * @param array  $form_fields
1298   * @param object $post
1299   * @return array
1300   */
1301  function image_attachment_fields_to_edit( $form_fields, $post ) {
1302      return $form_fields;
1303  }
1304  
1305  /**
1306   * Retrieves the single non-image attachment fields to edit form fields.
1307   *
1308   * @since 2.5.0
1309   *
1310   * @param array   $form_fields An array of attachment form fields.
1311   * @param WP_Post $post        The WP_Post attachment object.
1312   * @return array Filtered attachment form fields.
1313   */
1314  function media_single_attachment_fields_to_edit( $form_fields, $post ) {
1315      unset( $form_fields['url'], $form_fields['align'], $form_fields['image-size'] );
1316      return $form_fields;
1317  }
1318  
1319  /**
1320   * Retrieves the post non-image attachment fields to edit form fields.
1321   *
1322   * @since 2.8.0
1323   *
1324   * @param array   $form_fields An array of attachment form fields.
1325   * @param WP_Post $post        The WP_Post attachment object.
1326   * @return array Filtered attachment form fields.
1327   */
1328  function media_post_single_attachment_fields_to_edit( $form_fields, $post ) {
1329      unset( $form_fields['image_url'] );
1330      return $form_fields;
1331  }
1332  
1333  /**
1334   * Retrieves the media element HTML to send to the editor.
1335   *
1336   * @since 2.5.0
1337   *
1338   * @param string  $html
1339   * @param int     $attachment_id
1340   * @param array   $attachment
1341   * @return string
1342   */
1343  function image_media_send_to_editor( $html, $attachment_id, $attachment ) {
1344      $post = get_post( $attachment_id );
1345  
1346      if ( 'image' === substr( $post->post_mime_type, 0, 5 ) ) {
1347          $url   = $attachment['url'];
1348          $align = ! empty( $attachment['align'] ) ? $attachment['align'] : 'none';
1349          $size  = ! empty( $attachment['image-size'] ) ? $attachment['image-size'] : 'medium';
1350          $alt   = ! empty( $attachment['image_alt'] ) ? $attachment['image_alt'] : '';
1351          $rel   = ( strpos( $url, 'attachment_id' ) || get_attachment_link( $attachment_id ) === $url );
1352  
1353          return get_image_send_to_editor( $attachment_id, $attachment['post_excerpt'], $attachment['post_title'], $align, $url, $rel, $size, $alt );
1354      }
1355  
1356      return $html;
1357  }
1358  
1359  /**
1360   * Retrieves the attachment fields to edit form fields.
1361   *
1362   * @since 2.5.0
1363   *
1364   * @param WP_Post $post
1365   * @param array   $errors
1366   * @return array
1367   */
1368  function get_attachment_fields_to_edit( $post, $errors = null ) {
1369      if ( is_int( $post ) ) {
1370          $post = get_post( $post );
1371      }
1372  
1373      if ( is_array( $post ) ) {
1374          $post = new WP_Post( (object) $post );
1375      }
1376  
1377      $image_url = wp_get_attachment_url( $post->ID );
1378  
1379      $edit_post = sanitize_post( $post, 'edit' );
1380  
1381      $form_fields = array(
1382          'post_title'   => array(
1383              'label' => __( 'Title' ),
1384              'value' => $edit_post->post_title,
1385          ),
1386          'image_alt'    => array(),
1387          'post_excerpt' => array(
1388              'label' => __( 'Caption' ),
1389              'input' => 'html',
1390              'html'  => wp_caption_input_textarea( $edit_post ),
1391          ),
1392          'post_content' => array(
1393              'label' => __( 'Description' ),
1394              'value' => $edit_post->post_content,
1395              'input' => 'textarea',
1396          ),
1397          'url'          => array(
1398              'label' => __( 'Link URL' ),
1399              'input' => 'html',
1400              'html'  => image_link_input_fields( $post, get_option( 'image_default_link_type' ) ),
1401              'helps' => __( 'Enter a link URL or click above for presets.' ),
1402          ),
1403          'menu_order'   => array(
1404              'label' => __( 'Order' ),
1405              'value' => $edit_post->menu_order,
1406          ),
1407          'image_url'    => array(
1408              'label' => __( 'File URL' ),
1409              'input' => 'html',
1410              'html'  => "<input type='text' class='text urlfield' readonly='readonly' name='attachments[$post->ID][url]' value='" . esc_attr( $image_url ) . "' /><br />",
1411              'value' => wp_get_attachment_url( $post->ID ),
1412              'helps' => __( 'Location of the uploaded file.' ),
1413          ),
1414      );
1415  
1416      foreach ( get_attachment_taxonomies( $post ) as $taxonomy ) {
1417          $t = (array) get_taxonomy( $taxonomy );
1418  
1419          if ( ! $t['public'] || ! $t['show_ui'] ) {
1420              continue;
1421          }
1422  
1423          if ( empty( $t['label'] ) ) {
1424              $t['label'] = $taxonomy;
1425          }
1426  
1427          if ( empty( $t['args'] ) ) {
1428              $t['args'] = array();
1429          }
1430  
1431          $terms = get_object_term_cache( $post->ID, $taxonomy );
1432  
1433          if ( false === $terms ) {
1434              $terms = wp_get_object_terms( $post->ID, $taxonomy, $t['args'] );
1435          }
1436  
1437          $values = array();
1438  
1439          foreach ( $terms as $term ) {
1440              $values[] = $term->slug;
1441          }
1442  
1443          $t['value'] = implode( ', ', $values );
1444  
1445          $form_fields[ $taxonomy ] = $t;
1446      }
1447  
1448      /*
1449       * Merge default fields with their errors, so any key passed with the error
1450       * (e.g. 'error', 'helps', 'value') will replace the default.
1451       * The recursive merge is easily traversed with array casting:
1452       * foreach ( (array) $things as $thing )
1453       */
1454      $form_fields = array_merge_recursive( $form_fields, (array) $errors );
1455  
1456      // This was formerly in image_attachment_fields_to_edit().
1457      if ( 'image' === substr( $post->post_mime_type, 0, 5 ) ) {
1458          $alt = get_post_meta( $post->ID, '_wp_attachment_image_alt', true );
1459  
1460          if ( empty( $alt ) ) {
1461              $alt = '';
1462          }
1463  
1464          $form_fields['post_title']['required'] = true;
1465  
1466          $form_fields['image_alt'] = array(
1467              'value' => $alt,
1468              'label' => __( 'Alternative Text' ),
1469              'helps' => __( 'Alt text for the image, e.g. &#8220;The Mona Lisa&#8221;' ),
1470          );
1471  
1472          $form_fields['align'] = array(
1473              'label' => __( 'Alignment' ),
1474              'input' => 'html',
1475              'html'  => image_align_input_fields( $post, get_option( 'image_default_align' ) ),
1476          );
1477  
1478          $form_fields['image-size'] = image_size_input_fields( $post, get_option( 'image_default_size', 'medium' ) );
1479  
1480      } else {
1481          unset( $form_fields['image_alt'] );
1482      }
1483  
1484      /**
1485       * Filters the attachment fields to edit.
1486       *
1487       * @since 2.5.0
1488       *
1489       * @param array   $form_fields An array of attachment form fields.
1490       * @param WP_Post $post        The WP_Post attachment object.
1491       */
1492      $form_fields = apply_filters( 'attachment_fields_to_edit', $form_fields, $post );
1493  
1494      return $form_fields;
1495  }
1496  
1497  /**
1498   * Retrieves HTML for media items of post gallery.
1499   *
1500   * The HTML markup retrieved will be created for the progress of SWF Upload
1501   * component. Will also create link for showing and hiding the form to modify
1502   * the image attachment.
1503   *
1504   * @since 2.5.0
1505   *
1506   * @global WP_Query $wp_the_query WordPress Query object.
1507   *
1508   * @param int   $post_id Post ID.
1509   * @param array $errors  Errors for attachment, if any.
1510   * @return string HTML content for media items of post gallery.
1511   */
1512  function get_media_items( $post_id, $errors ) {
1513      $attachments = array();
1514  
1515      if ( $post_id ) {
1516          $post = get_post( $post_id );
1517  
1518          if ( $post && 'attachment' === $post->post_type ) {
1519              $attachments = array( $post->ID => $post );
1520          } else {
1521              $attachments = get_children(
1522                  array(
1523                      'post_parent' => $post_id,
1524                      'post_type'   => 'attachment',
1525                      'orderby'     => 'menu_order ASC, ID',
1526                      'order'       => 'DESC',
1527                  )
1528              );
1529          }
1530      } else {
1531          if ( is_array( $GLOBALS['wp_the_query']->posts ) ) {
1532              foreach ( $GLOBALS['wp_the_query']->posts as $attachment ) {
1533                  $attachments[ $attachment->ID ] = $attachment;
1534              }
1535          }
1536      }
1537  
1538      $output = '';
1539      foreach ( (array) $attachments as $id => $attachment ) {
1540          if ( 'trash' === $attachment->post_status ) {
1541              continue;
1542          }
1543  
1544          $item = get_media_item( $id, array( 'errors' => isset( $errors[ $id ] ) ? $errors[ $id ] : null ) );
1545  
1546          if ( $item ) {
1547              $output .= "\n<div id='media-item-$id' class='media-item child-of-$attachment->post_parent preloaded'><div class='progress hidden'><div class='bar'></div></div><div id='media-upload-error-$id' class='hidden'></div><div class='filename hidden'></div>$item\n</div>";
1548          }
1549      }
1550  
1551      return $output;
1552  }
1553  
1554  /**
1555   * Retrieves HTML form for modifying the image attachment.
1556   *
1557   * @since 2.5.0
1558   *
1559   * @global string $redir_tab
1560   *
1561   * @param int          $attachment_id Attachment ID for modification.
1562   * @param string|array $args          Optional. Override defaults.
1563   * @return string HTML form for attachment.
1564   */
1565  function get_media_item( $attachment_id, $args = null ) {
1566      global $redir_tab;
1567  
1568      $thumb_url     = false;
1569      $attachment_id = (int) $attachment_id;
1570  
1571      if ( $attachment_id ) {
1572          $thumb_url = wp_get_attachment_image_src( $attachment_id, 'thumbnail', true );
1573  
1574          if ( $thumb_url ) {
1575              $thumb_url = $thumb_url[0];
1576          }
1577      }
1578  
1579      $post            = get_post( $attachment_id );
1580      $current_post_id = ! empty( $_GET['post_id'] ) ? (int) $_GET['post_id'] : 0;
1581  
1582      $default_args = array(
1583          'errors'     => null,
1584          'send'       => $current_post_id ? post_type_supports( get_post_type( $current_post_id ), 'editor' ) : true,
1585          'delete'     => true,
1586          'toggle'     => true,
1587          'show_title' => true,
1588      );
1589  
1590      $parsed_args = wp_parse_args( $args, $default_args );
1591  
1592      /**
1593       * Filters the arguments used to retrieve an image for the edit image form.
1594       *
1595       * @since 3.1.0
1596       *
1597       * @see get_media_item
1598       *
1599       * @param array $parsed_args An array of arguments.
1600       */
1601      $parsed_args = apply_filters( 'get_media_item_args', $parsed_args );
1602  
1603      $toggle_on  = __( 'Show' );
1604      $toggle_off = __( 'Hide' );
1605  
1606      $file     = get_attached_file( $post->ID );
1607      $filename = esc_html( wp_basename( $file ) );
1608      $title    = esc_attr( $post->post_title );
1609  
1610      $post_mime_types = get_post_mime_types();
1611      $keys            = array_keys( wp_match_mime_types( array_keys( $post_mime_types ), $post->post_mime_type ) );
1612      $type            = reset( $keys );
1613      $type_html       = "<input type='hidden' id='type-of-$attachment_id' value='" . esc_attr( $type ) . "' />";
1614  
1615      $form_fields = get_attachment_fields_to_edit( $post, $parsed_args['errors'] );
1616  
1617      if ( $parsed_args['toggle'] ) {
1618          $class        = empty( $parsed_args['errors'] ) ? 'startclosed' : 'startopen';
1619          $toggle_links = "
1620          <a class='toggle describe-toggle-on' href='#'>$toggle_on</a>
1621          <a class='toggle describe-toggle-off' href='#'>$toggle_off</a>";
1622      } else {
1623          $class        = '';
1624          $toggle_links = '';
1625      }
1626  
1627      $display_title = ( ! empty( $title ) ) ? $title : $filename; // $title shouldn't ever be empty, but just in case.
1628      $display_title = $parsed_args['show_title'] ? "<div class='filename new'><span class='title'>" . wp_html_excerpt( $display_title, 60, '&hellip;' ) . '</span></div>' : '';
1629  
1630      $gallery = ( ( isset( $_REQUEST['tab'] ) && 'gallery' === $_REQUEST['tab'] ) || ( isset( $redir_tab ) && 'gallery' === $redir_tab ) );
1631      $order   = '';
1632  
1633      foreach ( $form_fields as $key => $val ) {
1634          if ( 'menu_order' === $key ) {
1635              if ( $gallery ) {
1636                  $order = "<div class='menu_order'> <input class='menu_order_input' type='text' id='attachments[$attachment_id][menu_order]' name='attachments[$attachment_id][menu_order]' value='" . esc_attr( $val['value'] ) . "' /></div>";
1637              } else {
1638                  $order = "<input type='hidden' name='attachments[$attachment_id][menu_order]' value='" . esc_attr( $val['value'] ) . "' />";
1639              }
1640  
1641              unset( $form_fields['menu_order'] );
1642              break;
1643          }
1644      }
1645  
1646      $media_dims = '';
1647      $meta       = wp_get_attachment_metadata( $post->ID );
1648  
1649      if ( isset( $meta['width'], $meta['height'] ) ) {
1650          $media_dims .= "<span id='media-dims-$post->ID'>{$meta['width']}&nbsp;&times;&nbsp;{$meta['height']}</span> ";
1651      }
1652  
1653      /**
1654       * Filters the media metadata.
1655       *
1656       * @since 2.5.0
1657       *
1658       * @param string  $media_dims The HTML markup containing the media dimensions.
1659       * @param WP_Post $post       The WP_Post attachment object.
1660       */
1661      $media_dims = apply_filters( 'media_meta', $media_dims, $post );
1662  
1663      $image_edit_button = '';
1664  
1665      if ( wp_attachment_is_image( $post->ID ) && wp_image_editor_supports( array( 'mime_type' => $post->post_mime_type ) ) ) {
1666          $nonce             = wp_create_nonce( "image_editor-$post->ID" );
1667          $image_edit_button = "<input type='button' id='imgedit-open-btn-$post->ID' onclick='imageEdit.open( $post->ID, \"$nonce\" )' class='button' value='" . esc_attr__( 'Edit Image' ) . "' /> <span class='spinner'></span>";
1668      }
1669  
1670      $attachment_url = get_permalink( $attachment_id );
1671  
1672      $item = "
1673          $type_html
1674          $toggle_links
1675          $order
1676          $display_title
1677          <table class='slidetoggle describe $class'>
1678              <thead class='media-item-info' id='media-head-$post->ID'>
1679              <tr>
1680              <td class='A1B1' id='thumbnail-head-$post->ID'>
1681              <p><a href='$attachment_url' target='_blank'><img class='thumbnail' src='$thumb_url' alt='' /></a></p>
1682              <p>$image_edit_button</p>
1683              </td>
1684              <td>
1685              <p><strong>" . __( 'File name:' ) . "</strong> $filename</p>
1686              <p><strong>" . __( 'File type:' ) . "</strong> $post->post_mime_type</p>
1687              <p><strong>" . __( 'Upload date:' ) . '</strong> ' . mysql2date( __( 'F j, Y' ), $post->post_date ) . '</p>';
1688  
1689      if ( ! empty( $media_dims ) ) {
1690          $item .= '<p><strong>' . __( 'Dimensions:' ) . "</strong> $media_dims</p>\n";
1691      }
1692  
1693      $item .= "</td></tr>\n";
1694  
1695      $item .= "
1696          </thead>
1697          <tbody>
1698          <tr><td colspan='2' class='imgedit-response' id='imgedit-response-$post->ID'></td></tr>\n
1699          <tr><td style='display:none' colspan='2' class='image-editor' id='image-editor-$post->ID'></td></tr>\n
1700          <tr><td colspan='2'><p class='media-types media-types-required-info'>" .
1701              /* translators: %s: Asterisk symbol (*). */
1702              sprintf( __( 'Required fields are marked %s' ), '<span class="required">*</span>' ) .
1703          "</p></td></tr>\n";
1704  
1705      $defaults = array(
1706          'input'      => 'text',
1707          'required'   => false,
1708          'value'      => '',
1709          'extra_rows' => array(),
1710      );
1711  
1712      if ( $parsed_args['send'] ) {
1713          $parsed_args['send'] = get_submit_button( __( 'Insert into Post' ), '', "send[$attachment_id]", false );
1714      }
1715  
1716      $delete = empty( $parsed_args['delete'] ) ? '' : $parsed_args['delete'];
1717      if ( $delete && current_user_can( 'delete_post', $attachment_id ) ) {
1718          if ( ! EMPTY_TRASH_DAYS ) {
1719              $delete = "<a href='" . wp_nonce_url( "post.php?action=delete&amp;post=$attachment_id", 'delete-post_' . $attachment_id ) . "' id='del[$attachment_id]' class='delete-permanently'>" . __( 'Delete Permanently' ) . '</a>';
1720          } elseif ( ! MEDIA_TRASH ) {
1721              $delete = "<a href='#' class='del-link' onclick=\"document.getElementById('del_attachment_$attachment_id').style.display='block';return false;\">" . __( 'Delete' ) . "</a>
1722                  <div id='del_attachment_$attachment_id' class='del-attachment' style='display:none;'>" .
1723                  /* translators: %s: File name. */
1724                  '<p>' . sprintf( __( 'You are about to delete %s.' ), '<strong>' . $filename . '</strong>' ) . "</p>
1725                  <a href='" . wp_nonce_url( "post.php?action=delete&amp;post=$attachment_id", 'delete-post_' . $attachment_id ) . "' id='del[$attachment_id]' class='button'>" . __( 'Continue' ) . "</a>
1726                  <a href='#' class='button' onclick=\"this.parentNode.style.display='none';return false;\">" . __( 'Cancel' ) . '</a>
1727                  </div>';
1728          } else {
1729              $delete = "<a href='" . wp_nonce_url( "post.php?action=trash&amp;post=$attachment_id", 'trash-post_' . $attachment_id ) . "' id='del[$attachment_id]' class='delete'>" . __( 'Move to Trash' ) . "</a>
1730              <a href='" . wp_nonce_url( "post.php?action=untrash&amp;post=$attachment_id", 'untrash-post_' . $attachment_id ) . "' id='undo[$attachment_id]' class='undo hidden'>" . __( 'Undo' ) . '</a>';
1731          }
1732      } else {
1733          $delete = '';
1734      }
1735  
1736      $thumbnail       = '';
1737      $calling_post_id = 0;
1738  
1739      if ( isset( $_GET['post_id'] ) ) {
1740          $calling_post_id = absint( $_GET['post_id'] );
1741      } elseif ( isset( $_POST ) && count( $_POST ) ) {// Like for async-upload where $_GET['post_id'] isn't set.
1742          $calling_post_id = $post->post_parent;
1743      }
1744  
1745      if ( 'image' === $type && $calling_post_id
1746          && current_theme_supports( 'post-thumbnails', get_post_type( $calling_post_id ) )
1747          && post_type_supports( get_post_type( $calling_post_id ), 'thumbnail' )
1748          && get_post_thumbnail_id( $calling_post_id ) != $attachment_id
1749      ) {
1750  
1751          $calling_post             = get_post( $calling_post_id );
1752          $calling_post_type_object = get_post_type_object( $calling_post->post_type );
1753  
1754          $ajax_nonce = wp_create_nonce( "set_post_thumbnail-$calling_post_id" );
1755          $thumbnail  = "<a class='wp-post-thumbnail' id='wp-post-thumbnail-" . $attachment_id . "' href='#' onclick='WPSetAsThumbnail(\"$attachment_id\", \"$ajax_nonce\");return false;'>" . esc_html( $calling_post_type_object->labels->use_featured_image ) . '</a>';
1756      }
1757  
1758      if ( ( $parsed_args['send'] || $thumbnail || $delete ) && ! isset( $form_fields['buttons'] ) ) {
1759          $form_fields['buttons'] = array( 'tr' => "\t\t<tr class='submit'><td></td><td class='savesend'>" . $parsed_args['send'] . " $thumbnail $delete</td></tr>\n" );
1760      }
1761  
1762      $hidden_fields = array();
1763  
1764      foreach ( $form_fields as $id => $field ) {
1765          if ( '_' === $id[0] ) {
1766              continue;
1767          }
1768  
1769          if ( ! empty( $field['tr'] ) ) {
1770              $item .= $field['tr'];
1771              continue;
1772          }
1773  
1774          $field = array_merge( $defaults, $field );
1775          $name  = "attachments[$attachment_id][$id]";
1776  
1777          if ( 'hidden' === $field['input'] ) {
1778              $hidden_fields[ $name ] = $field['value'];
1779              continue;
1780          }
1781  
1782          $required      = $field['required'] ? '<span class="required">*</span>' : '';
1783          $required_attr = $field['required'] ? ' required' : '';
1784          $class         = $id;
1785          $class        .= $field['required'] ? ' form-required' : '';
1786  
1787          $item .= "\t\t<tr class='$class'>\n\t\t\t<th scope='row' class='label'><label for='$name'><span class='alignleft'>{$field['label']}{$required}</span><br class='clear' /></label></th>\n\t\t\t<td class='field'>";
1788  
1789          if ( ! empty( $field[ $field['input'] ] ) ) {
1790              $item .= $field[ $field['input'] ];
1791          } elseif ( 'textarea' === $field['input'] ) {
1792              if ( 'post_content' === $id && user_can_richedit() ) {
1793                  // Sanitize_post() skips the post_content when user_can_richedit.
1794                  $field['value'] = htmlspecialchars( $field['value'], ENT_QUOTES );
1795              }
1796              // Post_excerpt is already escaped by sanitize_post() in get_attachment_fields_to_edit().
1797              $item .= "<textarea id='$name' name='$name'{$required_attr}>" . $field['value'] . '</textarea>';
1798          } else {
1799              $item .= "<input type='text' class='text' id='$name' name='$name' value='" . esc_attr( $field['value'] ) . "'{$required_attr} />";
1800          }
1801  
1802          if ( ! empty( $field['helps'] ) ) {
1803              $item .= "<p class='help'>" . implode( "</p>\n<p class='help'>", array_unique( (array) $field['helps'] ) ) . '</p>';
1804          }
1805          $item .= "</td>\n\t\t</tr>\n";
1806  
1807          $extra_rows = array();
1808  
1809          if ( ! empty( $field['errors'] ) ) {
1810              foreach ( array_unique( (array) $field['errors'] ) as $error ) {
1811                  $extra_rows['error'][] = $error;
1812              }
1813          }
1814  
1815          if ( ! empty( $field['extra_rows'] ) ) {
1816              foreach ( $field['extra_rows'] as $class => $rows ) {
1817                  foreach ( (array) $rows as $html ) {
1818                      $extra_rows[ $class ][] = $html;
1819                  }
1820              }
1821          }
1822  
1823          foreach ( $extra_rows as $class => $rows ) {
1824              foreach ( $rows as $html ) {
1825                  $item .= "\t\t<tr><td></td><td class='$class'>$html</td></tr>\n";
1826              }
1827          }
1828      }
1829  
1830      if ( ! empty( $form_fields['_final'] ) ) {
1831          $item .= "\t\t<tr class='final'><td colspan='2'>{$form_fields['_final']}</td></tr>\n";
1832      }
1833  
1834      $item .= "\t</tbody>\n";
1835      $item .= "\t</table>\n";
1836  
1837      foreach ( $hidden_fields as $name => $value ) {
1838          $item .= "\t<input type='hidden' name='$name' id='$name' value='" . esc_attr( $value ) . "' />\n";
1839      }
1840  
1841      if ( $post->post_parent < 1 && isset( $_REQUEST['post_id'] ) ) {
1842          $parent      = (int) $_REQUEST['post_id'];
1843          $parent_name = "attachments[$attachment_id][post_parent]";
1844          $item       .= "\t<input type='hidden' name='$parent_name' id='$parent_name' value='$parent' />\n";
1845      }
1846  
1847      return $item;
1848  }
1849  
1850  /**
1851   * @since 3.5.0
1852   *
1853   * @param int   $attachment_id
1854   * @param array $args
1855   * @return array
1856   */
1857  function get_compat_media_markup( $attachment_id, $args = null ) {
1858      $post = get_post( $attachment_id );
1859  
1860      $default_args = array(
1861          'errors'   => null,
1862          'in_modal' => false,
1863      );
1864  
1865      $user_can_edit = current_user_can( 'edit_post', $attachment_id );
1866  
1867      $args = wp_parse_args( $args, $default_args );
1868  
1869      /** This filter is documented in wp-admin/includes/media.php */
1870      $args = apply_filters( 'get_media_item_args', $args );
1871  
1872      $form_fields = array();
1873  
1874      if ( $args['in_modal'] ) {
1875          foreach ( get_attachment_taxonomies( $post ) as $taxonomy ) {
1876              $t = (array) get_taxonomy( $taxonomy );
1877  
1878              if ( ! $t['public'] || ! $t['show_ui'] ) {
1879                  continue;
1880              }
1881  
1882              if ( empty( $t['label'] ) ) {
1883                  $t['label'] = $taxonomy;
1884              }
1885  
1886              if ( empty( $t['args'] ) ) {
1887                  $t['args'] = array();
1888              }
1889  
1890              $terms = get_object_term_cache( $post->ID, $taxonomy );
1891  
1892              if ( false === $terms ) {
1893                  $terms = wp_get_object_terms( $post->ID, $taxonomy, $t['args'] );
1894              }
1895  
1896              $values = array();
1897  
1898              foreach ( $terms as $term ) {
1899                  $values[] = $term->slug;
1900              }
1901  
1902              $t['value']    = implode( ', ', $values );
1903              $t['taxonomy'] = true;
1904  
1905              $form_fields[ $taxonomy ] = $t;
1906          }
1907      }
1908  
1909      /*
1910       * Merge default fields with their errors, so any key passed with the error
1911       * (e.g. 'error', 'helps', 'value') will replace the default.
1912       * The recursive merge is easily traversed with array casting:
1913       * foreach ( (array) $things as $thing )
1914       */
1915      $form_fields = array_merge_recursive( $form_fields, (array) $args['errors'] );
1916  
1917      /** This filter is documented in wp-admin/includes/media.php */
1918      $form_fields = apply_filters( 'attachment_fields_to_edit', $form_fields, $post );
1919  
1920      unset(
1921          $form_fields['image-size'],
1922          $form_fields['align'],
1923          $form_fields['image_alt'],
1924          $form_fields['post_title'],
1925          $form_fields['post_excerpt'],
1926          $form_fields['post_content'],
1927          $form_fields['url'],
1928          $form_fields['menu_order'],
1929          $form_fields['image_url']
1930      );
1931  
1932      /** This filter is documented in wp-admin/includes/media.php */
1933      $media_meta = apply_filters( 'media_meta', '', $post );
1934  
1935      $defaults = array(
1936          'input'         => 'text',
1937          'required'      => false,
1938          'value'         => '',
1939          'extra_rows'    => array(),
1940          'show_in_edit'  => true,
1941          'show_in_modal' => true,
1942      );
1943  
1944      $hidden_fields = array();
1945  
1946      $item = '';
1947  
1948      foreach ( $form_fields as $id => $field ) {
1949          if ( '_' === $id[0] ) {
1950              continue;
1951          }
1952  
1953          $name    = "attachments[$attachment_id][$id]";
1954          $id_attr = "attachments-$attachment_id-$id";
1955  
1956          if ( ! empty( $field['tr'] ) ) {
1957              $item .= $field['tr'];
1958              continue;
1959          }
1960  
1961          $field = array_merge( $defaults, $field );
1962  
1963          if ( ( ! $field['show_in_edit'] && ! $args['in_modal'] ) || ( ! $field['show_in_modal'] && $args['in_modal'] ) ) {
1964              continue;
1965          }
1966  
1967          if ( 'hidden' === $field['input'] ) {
1968              $hidden_fields[ $name ] = $field['value'];
1969              continue;
1970          }
1971  
1972          $readonly      = ! $user_can_edit && ! empty( $field['taxonomy'] ) ? " readonly='readonly' " : '';
1973          $required      = $field['required'] ? '<span class="required">*</span>' : '';
1974          $required_attr = $field['required'] ? ' required' : '';
1975          $class         = 'compat-field-' . $id;
1976          $class        .= $field['required'] ? ' form-required' : '';
1977  
1978          $item .= "\t\t<tr class='$class'>";
1979          $item .= "\t\t\t<th scope='row' class='label'><label for='$id_attr'><span class='alignleft'>{$field['label']}</span>$required<br class='clear' /></label>";
1980          $item .= "</th>\n\t\t\t<td class='field'>";
1981  
1982          if ( ! empty( $field[ $field['input'] ] ) ) {
1983              $item .= $field[ $field['input'] ];
1984          } elseif ( 'textarea' === $field['input'] ) {
1985              if ( 'post_content' === $id && user_can_richedit() ) {
1986                  // sanitize_post() skips the post_content when user_can_richedit.
1987                  $field['value'] = htmlspecialchars( $field['value'], ENT_QUOTES );
1988              }
1989              $item .= "<textarea id='$id_attr' name='$name'{$required_attr}>" . $field['value'] . '</textarea>';
1990          } else {
1991              $item .= "<input type='text' class='text' id='$id_attr' name='$name' value='" . esc_attr( $field['value'] ) . "' $readonly{$required_attr} />";
1992          }
1993  
1994          if ( ! empty( $field['helps'] ) ) {
1995              $item .= "<p class='help'>" . implode( "</p>\n<p class='help'>", array_unique( (array) $field['helps'] ) ) . '</p>';
1996          }
1997  
1998          $item .= "</td>\n\t\t</tr>\n";
1999  
2000          $extra_rows = array();
2001  
2002          if ( ! empty( $field['errors'] ) ) {
2003              foreach ( array_unique( (array) $field['errors'] ) as $error ) {
2004                  $extra_rows['error'][] = $error;
2005              }
2006          }
2007  
2008          if ( ! empty( $field['extra_rows'] ) ) {
2009              foreach ( $field['extra_rows'] as $class => $rows ) {
2010                  foreach ( (array) $rows as $html ) {
2011                      $extra_rows[ $class ][] = $html;
2012                  }
2013              }
2014          }
2015  
2016          foreach ( $extra_rows as $class => $rows ) {
2017              foreach ( $rows as $html ) {
2018                  $item .= "\t\t<tr><td></td><td class='$class'>$html</td></tr>\n";
2019              }
2020          }
2021      }
2022  
2023      if ( ! empty( $form_fields['_final'] ) ) {
2024          $item .= "\t\t<tr class='final'><td colspan='2'>{$form_fields['_final']}</td></tr>\n";
2025      }
2026  
2027      if ( $item ) {
2028          $item = '<p class="media-types media-types-required-info">' .
2029              /* translators: %s: Asterisk symbol (*). */
2030              sprintf( __( 'Required fields are marked %s' ), '<span class="required">*</span>' ) .
2031              '</p>' .
2032              '<table class="compat-attachment-fields">' . $item . '</table>';
2033      }
2034  
2035      foreach ( $hidden_fields as $hidden_field => $value ) {
2036          $item .= '<input type="hidden" name="' . esc_attr( $hidden_field ) . '" value="' . esc_attr( $value ) . '" />' . "\n";
2037      }
2038  
2039      if ( $item ) {
2040          $item = '<input type="hidden" name="attachments[' . $attachment_id . '][menu_order]" value="' . esc_attr( $post->menu_order ) . '" />' . $item;
2041      }
2042  
2043      return array(
2044          'item' => $item,
2045          'meta' => $media_meta,
2046      );
2047  }
2048  
2049  /**
2050   * Outputs the legacy media upload header.
2051   *
2052   * @since 2.5.0
2053   */
2054  function media_upload_header() {
2055      $post_id = isset( $_REQUEST['post_id'] ) ? (int) $_REQUEST['post_id'] : 0;
2056  
2057      echo '<script type="text/javascript">post_id = ' . $post_id . ';</script>';
2058  
2059      if ( empty( $_GET['chromeless'] ) ) {
2060          echo '<div id="media-upload-header">';
2061          the_media_upload_tabs();
2062          echo '</div>';
2063      }
2064  }
2065  
2066  /**
2067   * Outputs the legacy media upload form.
2068   *
2069   * @since 2.5.0
2070   *
2071   * @global string $type
2072   * @global string $tab
2073   * @global bool   $is_IE
2074   * @global bool   $is_opera
2075   *
2076   * @param array $errors
2077   */
2078  function media_upload_form( $errors = null ) {
2079      global $type, $tab, $is_IE, $is_opera;
2080  
2081      if ( ! _device_can_upload() ) {
2082          echo '<p>' . sprintf(
2083              /* translators: %s: https://apps.wordpress.org/ */
2084              __( 'The web browser on your device cannot be used to upload files. You may be able to use the <a href="%s">native app for your device</a> instead.' ),
2085              'https://apps.wordpress.org/'
2086          ) . '</p>';
2087          return;
2088      }
2089  
2090      $upload_action_url = admin_url( 'async-upload.php' );
2091      $post_id           = isset( $_REQUEST['post_id'] ) ? (int) $_REQUEST['post_id'] : 0;
2092      $_type             = isset( $type ) ? $type : '';
2093      $_tab              = isset( $tab ) ? $tab : '';
2094  
2095      $max_upload_size = wp_max_upload_size();
2096      if ( ! $max_upload_size ) {
2097          $max_upload_size = 0;
2098      }
2099  
2100      ?>
2101      <div id="media-upload-notice">
2102      <?php
2103  
2104      if ( isset( $errors['upload_notice'] ) ) {
2105          echo $errors['upload_notice'];
2106      }
2107  
2108      ?>
2109      </div>
2110      <div id="media-upload-error">
2111      <?php
2112  
2113      if ( isset( $errors['upload_error'] ) && is_wp_error( $errors['upload_error'] ) ) {
2114          echo $errors['upload_error']->get_error_message();
2115      }
2116  
2117      ?>
2118      </div>
2119      <?php
2120  
2121      if ( is_multisite() && ! is_upload_space_available() ) {
2122          /**
2123           * Fires when an upload will exceed the defined upload space quota for a network site.
2124           *
2125           * @since 3.5.0
2126           */
2127          do_action( 'upload_ui_over_quota' );
2128          return;
2129      }
2130  
2131      /**
2132       * Fires just before the legacy (pre-3.5.0) upload interface is loaded.
2133       *
2134       * @since 2.6.0
2135       */
2136      do_action( 'pre-upload-ui' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
2137  
2138      $post_params = array(
2139          'post_id'  => $post_id,
2140          '_wpnonce' => wp_create_nonce( 'media-form' ),
2141          'type'     => $_type,
2142          'tab'      => $_tab,
2143          'short'    => '1',
2144      );
2145  
2146      /**
2147       * Filters the media upload post parameters.
2148       *
2149       * @since 3.1.0 As 'swfupload_post_params'
2150       * @since 3.3.0
2151       *
2152       * @param array $post_params An array of media upload parameters used by Plupload.
2153       */
2154      $post_params = apply_filters( 'upload_post_params', $post_params );
2155  
2156      /*
2157      * Since 4.9 the `runtimes` setting is hardcoded in our version of Plupload to `html5,html4`,
2158      * and the `flash_swf_url` and `silverlight_xap_url` are not used.
2159      */
2160      $plupload_init = array(
2161          'browse_button'    => 'plupload-browse-button',
2162          'container'        => 'plupload-upload-ui',
2163          'drop_element'     => 'drag-drop-area',
2164          'file_data_name'   => 'async-upload',
2165          'url'              => $upload_action_url,
2166          'filters'          => array( 'max_file_size' => $max_upload_size . 'b' ),
2167          'multipart_params' => $post_params,
2168      );
2169  
2170      /*
2171       * Currently only iOS Safari supports multiple files uploading,
2172       * but iOS 7.x has a bug that prevents uploading of videos when enabled.
2173       * See #29602.
2174       */
2175      if (
2176          wp_is_mobile() &&
2177          strpos( $_SERVER['HTTP_USER_AGENT'], 'OS 7_' ) !== false &&
2178          strpos( $_SERVER['HTTP_USER_AGENT'], 'like Mac OS X' ) !== false
2179      ) {
2180          $plupload_init['multi_selection'] = false;
2181      }
2182  
2183      // Check if WebP images can be edited.
2184      if ( ! wp_image_editor_supports( array( 'mime_type' => 'image/webp' ) ) ) {
2185          $plupload_init['webp_upload_error'] = true;
2186      }
2187  
2188      /**
2189       * Filters the default Plupload settings.
2190       *
2191       * @since 3.3.0
2192       *
2193       * @param array $plupload_init An array of default settings used by Plupload.
2194       */
2195      $plupload_init = apply_filters( 'plupload_init', $plupload_init );
2196  
2197      ?>
2198      <script type="text/javascript">
2199      <?php
2200      // Verify size is an int. If not return default value.
2201      $large_size_h = absint( get_option( 'large_size_h' ) );
2202  
2203      if ( ! $large_size_h ) {
2204          $large_size_h = 1024;
2205      }
2206  
2207      $large_size_w = absint( get_option( 'large_size_w' ) );
2208  
2209      if ( ! $large_size_w ) {
2210          $large_size_w = 1024;
2211      }
2212  
2213      ?>
2214      var resize_height = <?php echo $large_size_h; ?>, resize_width = <?php echo $large_size_w; ?>,
2215      wpUploaderInit = <?php echo wp_json_encode( $plupload_init ); ?>;
2216      </script>
2217  
2218      <div id="plupload-upload-ui" class="hide-if-no-js">
2219      <?php
2220      /**
2221       * Fires before the upload interface loads.
2222       *
2223       * @since 2.6.0 As 'pre-flash-upload-ui'
2224       * @since 3.3.0
2225       */
2226      do_action( 'pre-plupload-upload-ui' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
2227  
2228      ?>
2229      <div id="drag-drop-area">
2230          <div class="drag-drop-inside">
2231          <p class="drag-drop-info"><?php _e( 'Drop files to upload' ); ?></p>
2232          <p><?php _ex( 'or', 'Uploader: Drop files here - or - Select Files' ); ?></p>
2233          <p class="drag-drop-buttons"><input id="plupload-browse-button" type="button" value="<?php esc_attr_e( 'Select Files' ); ?>" class="button" /></p>
2234          </div>
2235      </div>
2236      <?php
2237      /**
2238       * Fires after the upload interface loads.
2239       *
2240       * @since 2.6.0 As 'post-flash-upload-ui'
2241       * @since 3.3.0
2242       */
2243      do_action( 'post-plupload-upload-ui' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
2244      ?>
2245      </div>
2246  
2247      <div id="html-upload-ui" class="hide-if-js">
2248      <?php
2249      /**
2250       * Fires before the upload button in the media upload interface.
2251       *
2252       * @since 2.6.0
2253       */
2254      do_action( 'pre-html-upload-ui' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
2255  
2256      ?>
2257      <p id="async-upload-wrap">
2258          <label class="screen-reader-text" for="async-upload"><?php _e( 'Upload' ); ?></label>
2259          <input type="file" name="async-upload" id="async-upload" />
2260          <?php submit_button( __( 'Upload' ), 'primary', 'html-upload', false ); ?>
2261          <a href="#" onclick="try{top.tb_remove();}catch(e){}; return false;"><?php _e( 'Cancel' ); ?></a>
2262      </p>
2263      <div class="clear"></div>
2264      <?php
2265      /**
2266       * Fires after the upload button in the media upload interface.
2267       *
2268       * @since 2.6.0
2269       */
2270      do_action( 'post-html-upload-ui' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
2271  
2272      ?>
2273      </div>
2274  
2275  <p class="max-upload-size">
2276      <?php
2277      /* translators: %s: Maximum allowed file size. */
2278      printf( __( 'Maximum upload file size: %s.' ), esc_html( size_format( $max_upload_size ) ) );
2279      ?>
2280  </p>
2281      <?php
2282  
2283      /**
2284       * Fires on the post upload UI screen.
2285       *
2286       * Legacy (pre-3.5.0) media workflow hook.
2287       *
2288       * @since 2.6.0
2289       */
2290      do_action( 'post-upload-ui' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
2291  }
2292  
2293  /**
2294   * Outputs the legacy media upload form for a given media type.
2295   *
2296   * @since 2.5.0
2297   *
2298   * @param string       $type
2299   * @param array        $errors
2300   * @param int|WP_Error $id
2301   */
2302  function media_upload_type_form( $type = 'file', $errors = null, $id = null ) {
2303  
2304      media_upload_header();
2305  
2306      $post_id = isset( $_REQUEST['post_id'] ) ? (int) $_REQUEST['post_id'] : 0;
2307  
2308      $form_action_url = admin_url( "media-upload.php?type=$type&tab=type&post_id=$post_id" );
2309  
2310      /**
2311       * Filters the media upload form action URL.
2312       *
2313       * @since 2.6.0
2314       *
2315       * @param string $form_action_url The media upload form action URL.
2316       * @param string $type            The type of media. Default 'file'.
2317       */
2318      $form_action_url = apply_filters( 'media_upload_form_url', $form_action_url, $type );
2319      $form_class      = 'media-upload-form type-form validate';
2320  
2321      if ( get_user_setting( 'uploader' ) ) {
2322          $form_class .= ' html-uploader';
2323      }
2324  
2325      ?>
2326      <form enctype="multipart/form-data" method="post" action="<?php echo esc_url( $form_action_url ); ?>" class="<?php echo $form_class; ?>" id="<?php echo $type; ?>-form">
2327          <?php submit_button( '', 'hidden', 'save', false ); ?>
2328      <input type="hidden" name="post_id" id="post_id" value="<?php echo (int) $post_id; ?>" />
2329          <?php wp_nonce_field( 'media-form' ); ?>
2330  
2331      <h3 class="media-title"><?php _e( 'Add media files from your computer' ); ?></h3>
2332  
2333      <?php media_upload_form( $errors ); ?>
2334  
2335      <script type="text/javascript">
2336      jQuery(function($){
2337          var preloaded = $(".media-item.preloaded");
2338          if ( preloaded.length > 0 ) {
2339              preloaded.each(function(){prepareMediaItem({id:this.id.replace(/[^0-9]/g, '')},'');});
2340          }
2341          updateMediaForm();
2342      });
2343      </script>
2344      <div id="media-items">
2345      <?php
2346  
2347      if ( $id ) {
2348          if ( ! is_wp_error( $id ) ) {
2349              add_filter( 'attachment_fields_to_edit', 'media_post_single_attachment_fields_to_edit', 10, 2 );
2350              echo get_media_items( $id, $errors );
2351          } else {
2352              echo '<div id="media-upload-error">' . esc_html( $id->get_error_message() ) . '</div></div>';
2353              exit;
2354          }
2355      }
2356  
2357      ?>
2358      </div>
2359  
2360      <p class="savebutton ml-submit">
2361          <?php submit_button( __( 'Save all changes' ), '', 'save', false ); ?>
2362      </p>
2363      </form>
2364      <?php
2365  }
2366  
2367  /**
2368   * Outputs the legacy media upload form for external media.
2369   *
2370   * @since 2.7.0
2371   *
2372   * @param string  $type
2373   * @param object  $errors
2374   * @param int     $id
2375   */
2376  function media_upload_type_url_form( $type = null, $errors = null, $id = null ) {
2377      if ( null === $type ) {
2378          $type = 'image';
2379      }
2380  
2381      media_upload_header();
2382  
2383      $post_id = isset( $_REQUEST['post_id'] ) ? (int) $_REQUEST['post_id'] : 0;
2384  
2385      $form_action_url = admin_url( "media-upload.php?type=$type&tab=type&post_id=$post_id" );
2386      /** This filter is documented in wp-admin/includes/media.php */
2387      $form_action_url = apply_filters( 'media_upload_form_url', $form_action_url, $type );
2388      $form_class      = 'media-upload-form type-form validate';
2389  
2390      if ( get_user_setting( 'uploader' ) ) {
2391          $form_class .= ' html-uploader';
2392      }
2393  
2394      ?>
2395      <form enctype="multipart/form-data" method="post" action="<?php echo esc_url( $form_action_url ); ?>" class="<?php echo $form_class; ?>" id="<?php echo $type; ?>-form">
2396      <input type="hidden" name="post_id" id="post_id" value="<?php echo (int) $post_id; ?>" />
2397          <?php wp_nonce_field( 'media-form' ); ?>
2398  
2399      <h3 class="media-title"><?php _e( 'Insert media from another website' ); ?></h3>
2400  
2401      <script type="text/javascript">
2402      var addExtImage = {
2403  
2404      width : '',
2405      height : '',
2406      align : 'alignnone',
2407  
2408      insert : function() {
2409          var t = this, html, f = document.forms[0], cls, title = '', alt = '', caption = '';
2410  
2411          if ( '' === f.src.value || '' === t.width )
2412              return false;
2413  
2414          if ( f.alt.value )
2415              alt = f.alt.value.replace(/'/g, '&#039;').replace(/"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
2416  
2417          <?php
2418          /** This filter is documented in wp-admin/includes/media.php */
2419          if ( ! apply_filters( 'disable_captions', '' ) ) {
2420              ?>
2421              if ( f.caption.value ) {
2422                  caption = f.caption.value.replace(/\r\n|\r/g, '\n');
2423                  caption = caption.replace(/<[a-zA-Z0-9]+( [^<>]+)?>/g, function(a){
2424                      return a.replace(/[\r\n\t]+/, ' ');
2425                  });
2426  
2427                  caption = caption.replace(/\s*\n\s*/g, '<br />');
2428              }
2429              <?php
2430          }
2431  
2432          ?>
2433          cls = caption ? '' : ' class="'+t.align+'"';
2434  
2435          html = '<img alt="'+alt+'" src="'+f.src.value+'"'+cls+' width="'+t.width+'" height="'+t.height+'" />';
2436  
2437          if ( f.url.value ) {
2438              url = f.url.value.replace(/'/g, '&#039;').replace(/"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
2439              html = '<a href="'+url+'">'+html+'</a>';
2440          }
2441  
2442          if ( caption )
2443              html = '[caption id="" align="'+t.align+'" width="'+t.width+'"]'+html+caption+'[/caption]';
2444  
2445          var win = window.dialogArguments || opener || parent || top;
2446          win.send_to_editor(html);
2447          return false;
2448      },
2449  
2450      resetImageData : function() {
2451          var t = addExtImage;
2452  
2453          t.width = t.height = '';
2454          document.getElementById('go_button').style.color = '#bbb';
2455          if ( ! document.forms[0].src.value )
2456              document.getElementById('status_img').innerHTML = '';
2457          else document.getElementById('status_img').innerHTML = '<img src="<?php echo esc_url( admin_url( 'images/no.png' ) ); ?>" alt="" />';
2458      },
2459  
2460      updateImageData : function() {
2461          var t = addExtImage;
2462  
2463          t.width = t.preloadImg.width;
2464          t.height = t.preloadImg.height;
2465          document.getElementById('go_button').style.color = '#333';
2466          document.getElementById('status_img').innerHTML = '<img src="<?php echo esc_url( admin_url( 'images/yes.png' ) ); ?>" alt="" />';
2467      },
2468  
2469      getImageData : function() {
2470          if ( jQuery('table.describe').hasClass('not-image') )
2471              return;
2472  
2473          var t = addExtImage, src = document.forms[0].src.value;
2474  
2475          if ( ! src ) {
2476              t.resetImageData();
2477              return false;
2478          }
2479  
2480          document.getElementById('status_img').innerHTML = '<img src="<?php echo esc_url( admin_url( 'images/spinner-2x.gif' ) ); ?>" alt="" width="16" height="16" />';
2481          t.preloadImg = new Image();
2482          t.preloadImg.onload = t.updateImageData;
2483          t.preloadImg.onerror = t.resetImageData;
2484          t.preloadImg.src = src;
2485      }
2486      };
2487  
2488      jQuery( function($) {
2489          $('.media-types input').click( function() {
2490              $('table.describe').toggleClass('not-image', $('#not-image').prop('checked') );
2491          });
2492      } );
2493      </script>
2494  
2495      <div id="media-items">
2496      <div class="media-item media-blank">
2497      <?php
2498      /**
2499       * Filters the insert media from URL form HTML.
2500       *
2501       * @since 3.3.0
2502       *
2503       * @param string $form_html The insert from URL form HTML.
2504       */
2505      echo apply_filters( 'type_url_form_media', wp_media_insert_url_form( $type ) );
2506  
2507      ?>
2508      </div>
2509      </div>
2510      </form>
2511      <?php
2512  }
2513  
2514  /**
2515   * Adds gallery form to upload iframe.
2516   *
2517   * @since 2.5.0
2518   *
2519   * @global string $redir_tab
2520   * @global string $type
2521   * @global string $tab
2522   *
2523   * @param array $errors
2524   */
2525  function media_upload_gallery_form( $errors ) {
2526      global $redir_tab, $type;
2527  
2528      $redir_tab = 'gallery';
2529      media_upload_header();
2530  
2531      $post_id         = (int) $_REQUEST['post_id'];
2532      $form_action_url = admin_url( "media-upload.php?type=$type&tab=gallery&post_id=$post_id" );
2533      /** This filter is documented in wp-admin/includes/media.php */
2534      $form_action_url = apply_filters( 'media_upload_form_url', $form_action_url, $type );
2535      $form_class      = 'media-upload-form validate';
2536  
2537      if ( get_user_setting( 'uploader' ) ) {
2538          $form_class .= ' html-uploader';
2539      }
2540  
2541      ?>
2542      <script type="text/javascript">
2543      jQuery(function($){
2544          var preloaded = $(".media-item.preloaded");
2545          if ( preloaded.length > 0 ) {
2546              preloaded.each(function(){prepareMediaItem({id:this.id.replace(/[^0-9]/g, '')},'');});
2547              updateMediaForm();
2548          }
2549      });
2550      </script>
2551      <div id="sort-buttons" class="hide-if-no-js">
2552      <span>
2553          <?php _e( 'All Tabs:' ); ?>
2554      <a href="#" id="showall"><?php _e( 'Show' ); ?></a>
2555      <a href="#" id="hideall" style="display:none;"><?php _e( 'Hide' ); ?></a>
2556      </span>
2557          <?php _e( 'Sort Order:' ); ?>
2558      <a href="#" id="asc"><?php _e( 'Ascending' ); ?></a> |
2559      <a href="#" id="desc"><?php _e( 'Descending' ); ?></a> |
2560      <a href="#" id="clear"><?php _ex( 'Clear', 'verb' ); ?></a>
2561      </div>
2562      <form enctype="multipart/form-data" method="post" action="<?php echo esc_url( $form_action_url ); ?>" class="<?php echo $form_class; ?>" id="gallery-form">
2563          <?php wp_nonce_field( 'media-form' ); ?>
2564      <table class="widefat">
2565      <thead><tr>
2566      <th><?php _e( 'Media' ); ?></th>
2567      <th class="order-head"><?php _e( 'Order' ); ?></th>
2568      <th class="actions-head"><?php _e( 'Actions' ); ?></th>
2569      </tr></thead>
2570      </table>
2571      <div id="media-items">
2572          <?php add_filter( 'attachment_fields_to_edit', 'media_post_single_attachment_fields_to_edit', 10, 2 ); ?>
2573          <?php echo get_media_items( $post_id, $errors ); ?>
2574      </div>
2575  
2576      <p class="ml-submit">
2577          <?php
2578          submit_button(
2579              __( 'Save all changes' ),
2580              'savebutton',
2581              'save',
2582              false,
2583              array(
2584                  'id'    => 'save-all',
2585                  'style' => 'display: none;',
2586              )
2587          );
2588          ?>
2589      <input type="hidden" name="post_id" id="post_id" value="<?php echo (int) $post_id; ?>" />
2590      <input type="hidden" name="type" value="<?php echo esc_attr( $GLOBALS['type'] ); ?>" />
2591      <input type="hidden" name="tab" value="<?php echo esc_attr( $GLOBALS['tab'] ); ?>" />
2592      </p>
2593  
2594      <div id="gallery-settings" style="display:none;">
2595      <div class="title"><?php _e( 'Gallery Settings' ); ?></div>
2596      <table id="basic" class="describe"><tbody>
2597          <tr>
2598          <th scope="row" class="label">
2599              <label>
2600              <span class="alignleft"><?php _e( 'Link thumbnails to:' ); ?></span>
2601              </label>
2602          </th>
2603          <td class="field">
2604              <input type="radio" name="linkto" id="linkto-file" value="file" />
2605              <label for="linkto-file" class="radio"><?php _e( 'Image File' ); ?></label>
2606  
2607              <input type="radio" checked="checked" name="linkto" id="linkto-post" value="post" />
2608              <label for="linkto-post" class="radio"><?php _e( 'Attachment Page' ); ?></label>
2609          </td>
2610          </tr>
2611  
2612          <tr>
2613          <th scope="row" class="label">
2614              <label>
2615              <span class="alignleft"><?php _e( 'Order images by:' ); ?></span>
2616              </label>
2617          </th>
2618          <td class="field">
2619              <select id="orderby" name="orderby">
2620                  <option value="menu_order" selected="selected"><?php _e( 'Menu order' ); ?></option>
2621                  <option value="title"><?php _e( 'Title' ); ?></option>
2622                  <option value="post_date"><?php _e( 'Date/Time' ); ?></option>
2623                  <option value="rand"><?php _e( 'Random' ); ?></option>
2624              </select>
2625          </td>
2626          </tr>
2627  
2628          <tr>
2629          <th scope="row" class="label">
2630              <label>
2631              <span class="alignleft"><?php _e( 'Order:' ); ?></span>
2632              </label>
2633          </th>
2634          <td class="field">
2635              <input type="radio" checked="checked" name="order" id="order-asc" value="asc" />
2636              <label for="order-asc" class="radio"><?php _e( 'Ascending' ); ?></label>
2637  
2638              <input type="radio" name="order" id="order-desc" value="desc" />
2639              <label for="order-desc" class="radio"><?php _e( 'Descending' ); ?></label>
2640          </td>
2641          </tr>
2642  
2643          <tr>
2644          <th scope="row" class="label">
2645              <label>
2646              <span class="alignleft"><?php _e( 'Gallery columns:' ); ?></span>
2647              </label>
2648          </th>
2649          <td class="field">
2650              <select id="columns" name="columns">
2651                  <option value="1">1</option>
2652                  <option value="2">2</option>
2653                  <option value="3" selected="selected">3</option>
2654                  <option value="4">4</option>
2655                  <option value="5">5</option>
2656                  <option value="6">6</option>
2657                  <option value="7">7</option>
2658                  <option value="8">8</option>
2659                  <option value="9">9</option>
2660              </select>
2661          </td>
2662          </tr>
2663      </tbody></table>
2664  
2665      <p class="ml-submit">
2666      <input type="button" class="button" style="display:none;" onMouseDown="wpgallery.update();" name="insert-gallery" id="insert-gallery" value="<?php esc_attr_e( 'Insert gallery' ); ?>" />
2667      <input type="button" class="button" style="display:none;" onMouseDown="wpgallery.update();" name="update-gallery" id="update-gallery" value="<?php esc_attr_e( 'Update gallery settings' ); ?>" />
2668      </p>
2669      </div>
2670      </form>
2671      <?php
2672  }
2673  
2674  /**
2675   * Outputs the legacy media upload form for the media library.
2676   *
2677   * @since 2.5.0
2678   *
2679   * @global wpdb      $wpdb            WordPress database abstraction object.
2680   * @global WP_Query  $wp_query        WordPress Query object.
2681   * @global WP_Locale $wp_locale       WordPress date and time locale object.
2682   * @global string    $type
2683   * @global string    $tab
2684   * @global array     $post_mime_types
2685   *
2686   * @param array $errors
2687   */
2688  function media_upload_library_form( $errors ) {
2689      global $wpdb, $wp_query, $wp_locale, $type, $tab, $post_mime_types;
2690  
2691      media_upload_header();
2692  
2693      $post_id = isset( $_REQUEST['post_id'] ) ? (int) $_REQUEST['post_id'] : 0;
2694  
2695      $form_action_url = admin_url( "media-upload.php?type=$type&tab=library&post_id=$post_id" );
2696      /** This filter is documented in wp-admin/includes/media.php */
2697      $form_action_url = apply_filters( 'media_upload_form_url', $form_action_url, $type );
2698      $form_class      = 'media-upload-form validate';
2699  
2700      if ( get_user_setting( 'uploader' ) ) {
2701          $form_class .= ' html-uploader';
2702      }
2703  
2704      $q                   = $_GET;
2705      $q['posts_per_page'] = 10;
2706      $q['paged']          = isset( $q['paged'] ) ? (int) $q['paged'] : 0;
2707      if ( $q['paged'] < 1 ) {
2708          $q['paged'] = 1;
2709      }
2710      $q['offset'] = ( $q['paged'] - 1 ) * 10;
2711      if ( $q['offset'] < 1 ) {
2712          $q['offset'] = 0;
2713      }
2714  
2715      list($post_mime_types, $avail_post_mime_types) = wp_edit_attachments_query( $q );
2716  
2717      ?>
2718      <form id="filter" method="get">
2719      <input type="hidden" name="type" value="<?php echo esc_attr( $type ); ?>" />
2720      <input type="hidden" name="tab" value="<?php echo esc_attr( $tab ); ?>" />
2721      <input type="hidden" name="post_id" value="<?php echo (int) $post_id; ?>" />
2722      <input type="hidden" name="post_mime_type" value="<?php echo isset( $_GET['post_mime_type'] ) ? esc_attr( $_GET['post_mime_type'] ) : ''; ?>" />
2723      <input type="hidden" name="context" value="<?php echo isset( $_GET['context'] ) ? esc_attr( $_GET['context'] ) : ''; ?>" />
2724  
2725      <p id="media-search" class="search-box">
2726          <label class="screen-reader-text" for="media-search-input"><?php _e( 'Search Media' ); ?>:</label>
2727          <input type="search" id="media-search-input" name="s" value="<?php the_search_query(); ?>" />
2728          <?php submit_button( __( 'Search Media' ), '', '', false ); ?>
2729      </p>
2730  
2731      <ul class="subsubsub">
2732          <?php
2733          $type_links = array();
2734          $_num_posts = (array) wp_count_attachments();
2735          $matches    = wp_match_mime_types( array_keys( $post_mime_types ), array_keys( $_num_posts ) );
2736          foreach ( $matches as $_type => $reals ) {
2737              foreach ( $reals as $real ) {
2738                  if ( isset( $num_posts[ $_type ] ) ) {
2739                      $num_posts[ $_type ] += $_num_posts[ $real ];
2740                  } else {
2741                      $num_posts[ $_type ] = $_num_posts[ $real ];
2742                  }
2743              }
2744          }
2745          // If available type specified by media button clicked, filter by that type.
2746          if ( empty( $_GET['post_mime_type'] ) && ! empty( $num_posts[ $type ] ) ) {
2747              $_GET['post_mime_type']                        = $type;
2748              list($post_mime_types, $avail_post_mime_types) = wp_edit_attachments_query();
2749          }
2750          if ( empty( $_GET['post_mime_type'] ) || 'all' === $_GET['post_mime_type'] ) {
2751              $class = ' class="current"';
2752          } else {
2753              $class = '';
2754          }
2755          $type_links[] = '<li><a href="' . esc_url(
2756              add_query_arg(
2757                  array(
2758                      'post_mime_type' => 'all',
2759                      'paged'          => false,
2760                      'm'              => false,
2761                  )
2762              )
2763          ) . '"' . $class . '>' . __( 'All Types' ) . '</a>';
2764          foreach ( $post_mime_types as $mime_type => $label ) {
2765              $class = '';
2766  
2767              if ( ! wp_match_mime_types( $mime_type, $avail_post_mime_types ) ) {
2768                  continue;
2769              }
2770  
2771              if ( isset( $_GET['post_mime_type'] ) && wp_match_mime_types( $mime_type, $_GET['post_mime_type'] ) ) {
2772                  $class = ' class="current"';
2773              }
2774  
2775              $type_links[] = '<li><a href="' . esc_url(
2776                  add_query_arg(
2777                      array(
2778                          'post_mime_type' => $mime_type,
2779                          'paged'          => false,
2780                      )
2781                  )
2782              ) . '"' . $class . '>' . sprintf( translate_nooped_plural( $label[2], $num_posts[ $mime_type ] ), '<span id="' . $mime_type . '-counter">' . number_format_i18n( $num_posts[ $mime_type ] ) . '</span>' ) . '</a>';
2783          }
2784          /**
2785           * Filters the media upload mime type list items.
2786           *
2787           * Returned values should begin with an `<li>` tag.
2788           *
2789           * @since 3.1.0
2790           *
2791           * @param string[] $type_links An array of list items containing mime type link HTML.
2792           */
2793          echo implode( ' | </li>', apply_filters( 'media_upload_mime_type_links', $type_links ) ) . '</li>';
2794          unset( $type_links );
2795          ?>
2796      </ul>
2797  
2798      <div class="tablenav">
2799  
2800          <?php
2801          $page_links = paginate_links(
2802              array(
2803                  'base'      => add_query_arg( 'paged', '%#%' ),
2804                  'format'    => '',
2805                  'prev_text' => __( '&laquo;' ),
2806                  'next_text' => __( '&raquo;' ),
2807                  'total'     => ceil( $wp_query->found_posts / 10 ),
2808                  'current'   => $q['paged'],
2809              )
2810          );
2811  
2812          if ( $page_links ) {
2813              echo "<div class='tablenav-pages'>$page_links</div>";
2814          }
2815          ?>
2816  
2817      <div class="alignleft actions">
2818          <?php
2819  
2820          $arc_query = "SELECT DISTINCT YEAR(post_date) AS yyear, MONTH(post_date) AS mmonth FROM $wpdb->posts WHERE post_type = 'attachment' ORDER BY post_date DESC";
2821  
2822          $arc_result = $wpdb->get_results( $arc_query );
2823  
2824          $month_count    = count( $arc_result );
2825          $selected_month = isset( $_GET['m'] ) ? $_GET['m'] : 0;
2826  
2827          if ( $month_count && ! ( 1 == $month_count && 0 == $arc_result[0]->mmonth ) ) {
2828              ?>
2829              <select name='m'>
2830              <option<?php selected( $selected_month, 0 ); ?> value='0'><?php _e( 'All dates' ); ?></option>
2831              <?php
2832  
2833              foreach ( $arc_result as $arc_row ) {
2834                  if ( 0 == $arc_row->yyear ) {
2835                      continue;
2836                  }
2837  
2838                  $arc_row->mmonth = zeroise( $arc_row->mmonth, 2 );
2839  
2840                  if ( $arc_row->yyear . $arc_row->mmonth == $selected_month ) {
2841                      $default = ' selected="selected"';
2842                  } else {
2843                      $default = '';
2844                  }
2845  
2846                  echo "<option$default value='" . esc_attr( $arc_row->yyear . $arc_row->mmonth ) . "'>";
2847                  echo esc_html( $wp_locale->get_month( $arc_row->mmonth ) . " $arc_row->yyear" );
2848                  echo "</option>\n";
2849              }
2850  
2851              ?>
2852              </select>
2853          <?php } ?>
2854  
2855          <?php submit_button( __( 'Filter &#187;' ), '', 'post-query-submit', false ); ?>
2856  
2857      </div>
2858  
2859      <br class="clear" />
2860      </div>
2861      </form>
2862  
2863      <form enctype="multipart/form-data" method="post" action="<?php echo esc_url( $form_action_url ); ?>" class="<?php echo $form_class; ?>" id="library-form">
2864      <?php wp_nonce_field( 'media-form' ); ?>
2865  
2866      <script type="text/javascript">
2867      jQuery(function($){
2868          var preloaded = $(".media-item.preloaded");
2869          if ( preloaded.length > 0 ) {
2870              preloaded.each(function(){prepareMediaItem({id:this.id.replace(/[^0-9]/g, '')},'');});
2871              updateMediaForm();
2872          }
2873      });
2874      </script>
2875  
2876      <div id="media-items">
2877          <?php add_filter( 'attachment_fields_to_edit', 'media_post_single_attachment_fields_to_edit', 10, 2 ); ?>
2878          <?php echo get_media_items( null, $errors ); ?>
2879      </div>
2880      <p class="ml-submit">
2881          <?php submit_button( __( 'Save all changes' ), 'savebutton', 'save', false ); ?>
2882      <input type="hidden" name="post_id" id="post_id" value="<?php echo (int) $post_id; ?>" />
2883      </p>
2884      </form>
2885      <?php
2886  }
2887  
2888  /**
2889   * Creates the form for external url.
2890   *
2891   * @since 2.7.0
2892   *
2893   * @param string $default_view
2894   * @return string HTML content of the form.
2895   */
2896  function wp_media_insert_url_form( $default_view = 'image' ) {
2897      /** This filter is documented in wp-admin/includes/media.php */
2898      if ( ! apply_filters( 'disable_captions', '' ) ) {
2899          $caption = '
2900          <tr class="image-only">
2901              <th scope="row" class="label">
2902                  <label for="caption"><span class="alignleft">' . __( 'Image Caption' ) . '</span></label>
2903              </th>
2904              <td class="field"><textarea id="caption" name="caption"></textarea></td>
2905          </tr>';
2906      } else {
2907          $caption = '';
2908      }
2909  
2910      $default_align = get_option( 'image_default_align' );
2911  
2912      if ( empty( $default_align ) ) {
2913          $default_align = 'none';
2914      }
2915  
2916      if ( 'image' === $default_view ) {
2917          $view        = 'image-only';
2918          $table_class = '';
2919      } else {
2920          $view        = 'not-image';
2921          $table_class = $view;
2922      }
2923  
2924      return '
2925      <p class="media-types"><label><input type="radio" name="media_type" value="image" id="image-only"' . checked( 'image-only', $view, false ) . ' /> ' . __( 'Image' ) . '</label> &nbsp; &nbsp; <label><input type="radio" name="media_type" value="generic" id="not-image"' . checked( 'not-image', $view, false ) . ' /> ' . __( 'Audio, Video, or Other File' ) . '</label></p>
2926      <p class="media-types media-types-required-info">' .
2927          /* translators: %s: Asterisk symbol (*). */
2928          sprintf( __( 'Required fields are marked %s' ), '<span class="required">*</span>' ) .
2929      '</p>
2930      <table class="describe ' . $table_class . '"><tbody>
2931          <tr>
2932              <th scope="row" class="label" style="width:130px;">
2933                  <label for="src"><span class="alignleft">' . __( 'URL' ) . '</span> <span class="required">*</span></label>
2934                  <span class="alignright" id="status_img"></span>
2935              </th>
2936              <td class="field"><input id="src" name="src" value="" type="text" required onblur="addExtImage.getImageData()" /></td>
2937          </tr>
2938  
2939          <tr>
2940              <th scope="row" class="label">
2941                  <label for="title"><span class="alignleft">' . __( 'Title' ) . '</span> <span class="required">*</span></label>
2942              </th>
2943              <td class="field"><input id="title" name="title" value="" type="text" required /></td>
2944          </tr>
2945  
2946          <tr class="not-image"><td></td><td><p class="help">' . __( 'Link text, e.g. &#8220;Ransom Demands (PDF)&#8221;' ) . '</p></td></tr>
2947  
2948          <tr class="image-only">
2949              <th scope="row" class="label">
2950                  <label for="alt"><span class="alignleft">' . __( 'Alternative Text' ) . '</span></label>
2951              </th>
2952              <td class="field"><input id="alt" name="alt" value="" type="text" required />
2953              <p class="help">' . __( 'Alt text for the image, e.g. &#8220;The Mona Lisa&#8221;' ) . '</p></td>
2954          </tr>
2955          ' . $caption . '
2956          <tr class="align image-only">
2957              <th scope="row" class="label"><p><label for="align">' . __( 'Alignment' ) . '</label></p></th>
2958              <td class="field">
2959                  <input name="align" id="align-none" value="none" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . ( 'none' === $default_align ? ' checked="checked"' : '' ) . ' />
2960                  <label for="align-none" class="align image-align-none-label">' . __( 'None' ) . '</label>
2961                  <input name="align" id="align-left" value="left" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . ( 'left' === $default_align ? ' checked="checked"' : '' ) . ' />
2962                  <label for="align-left" class="align image-align-left-label">' . __( 'Left' ) . '</label>
2963                  <input name="align" id="align-center" value="center" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . ( 'center' === $default_align ? ' checked="checked"' : '' ) . ' />
2964                  <label for="align-center" class="align image-align-center-label">' . __( 'Center' ) . '</label>
2965                  <input name="align" id="align-right" value="right" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . ( 'right' === $default_align ? ' checked="checked"' : '' ) . ' />
2966                  <label for="align-right" class="align image-align-right-label">' . __( 'Right' ) . '</label>
2967              </td>
2968          </tr>
2969  
2970          <tr class="image-only">
2971              <th scope="row" class="label">
2972                  <label for="url"><span class="alignleft">' . __( 'Link Image To:' ) . '</span></label>
2973              </th>
2974              <td class="field"><input id="url" name="url" value="" type="text" /><br />
2975  
2976              <button type="button" class="button" value="" onclick="document.forms[0].url.value=null">' . __( 'None' ) . '</button>
2977              <button type="button" class="button" value="" onclick="document.forms[0].url.value=document.forms[0].src.value">' . __( 'Link to image' ) . '</button>
2978              <p class="help">' . __( 'Enter a link URL or click above for presets.' ) . '</p></td>
2979          </tr>
2980          <tr class="image-only">
2981              <td></td>
2982              <td>
2983                  <input type="button" class="button" id="go_button" style="color:#bbb;" onclick="addExtImage.insert()" value="' . esc_attr__( 'Insert into Post' ) . '" />
2984              </td>
2985          </tr>
2986          <tr class="not-image">
2987              <td></td>
2988              <td>
2989                  ' . get_submit_button( __( 'Insert into Post' ), '', 'insertonlybutton', false ) . '
2990              </td>
2991          </tr>
2992      </tbody></table>';
2993  }
2994  
2995  /**
2996   * Displays the multi-file uploader message.
2997   *
2998   * @since 2.6.0
2999   *
3000   * @global int $post_ID
3001   */
3002  function media_upload_flash_bypass() {
3003      $browser_uploader = admin_url( 'media-new.php?browser-uploader' );
3004  
3005      $post = get_post();
3006      if ( $post ) {
3007          $browser_uploader .= '&amp;post_id=' . (int) $post->ID;
3008      } elseif ( ! empty( $GLOBALS['post_ID'] ) ) {
3009          $browser_uploader .= '&amp;post_id=' . (int) $GLOBALS['post_ID'];
3010      }
3011  
3012      ?>
3013      <p class="upload-flash-bypass">
3014      <?php
3015          printf(
3016              /* translators: 1: URL to browser uploader, 2: Additional link attributes. */
3017              __( 'You are using the multi-file uploader. Problems? Try the <a href="%1$s" %2$s>browser uploader</a> instead.' ),
3018              $browser_uploader,
3019              'target="_blank"'
3020          );
3021      ?>
3022      </p>
3023      <?php
3024  }
3025  
3026  /**
3027   * Displays the browser's built-in uploader message.
3028   *
3029   * @since 2.6.0
3030   */
3031  function media_upload_html_bypass() {
3032      ?>
3033      <p class="upload-html-bypass hide-if-no-js">
3034          <?php _e( 'You are using the browser&#8217;s built-in file uploader. The WordPress uploader includes multiple file selection and drag and drop capability. <a href="#">Switch to the multi-file uploader</a>.' ); ?>
3035      </p>
3036      <?php
3037  }
3038  
3039  /**
3040   * Used to display a "After a file has been uploaded..." help message.
3041   *
3042   * @since 3.3.0
3043   */
3044  function media_upload_text_after() {}
3045  
3046  /**
3047   * Displays the checkbox to scale images.
3048   *
3049   * @since 3.3.0
3050   */
3051  function media_upload_max_image_resize() {
3052      $checked = get_user_setting( 'upload_resize' ) ? ' checked="true"' : '';
3053      $a       = '';
3054      $end     = '';
3055  
3056      if ( current_user_can( 'manage_options' ) ) {
3057          $a   = '<a href="' . esc_url( admin_url( 'options-media.php' ) ) . '" target="_blank">';
3058          $end = '</a>';
3059      }
3060  
3061      ?>
3062      <p class="hide-if-no-js"><label>
3063      <input name="image_resize" type="checkbox" id="image_resize" value="true"<?php echo $checked; ?> />
3064      <?php
3065      /* translators: 1: Link start tag, 2: Link end tag, 3: Width, 4: Height. */
3066      printf( __( 'Scale images to match the large size selected in %1$simage options%2$s (%3$d &times; %4$d).' ), $a, $end, (int) get_option( 'large_size_w', '1024' ), (int) get_option( 'large_size_h', '1024' ) );
3067  
3068      ?>
3069      </label></p>
3070      <?php
3071  }
3072  
3073  /**
3074   * Displays the out of storage quota message in Multisite.
3075   *
3076   * @since 3.5.0
3077   */
3078  function multisite_over_quota_message() {
3079      echo '<p>' . sprintf(
3080          /* translators: %s: Allowed space allocation. */
3081          __( 'Sorry, you have used your space allocation of %s. Please delete some files to upload more files.' ),
3082          size_format( get_space_allowed() * MB_IN_BYTES )
3083      ) . '</p>';
3084  }
3085  
3086  /**
3087   * Displays the image and editor in the post editor
3088   *
3089   * @since 3.5.0
3090   *
3091   * @param WP_Post $post A post object.
3092   */
3093  function edit_form_image_editor( $post ) {
3094      $open = isset( $_GET['image-editor'] );
3095  
3096      if ( $open ) {
3097          require_once ABSPATH . 'wp-admin/includes/image-edit.php';
3098      }
3099  
3100      $thumb_url     = false;
3101      $attachment_id = (int) $post->ID;
3102  
3103      if ( $attachment_id ) {
3104          $thumb_url = wp_get_attachment_image_src( $attachment_id, array( 900, 450 ), true );
3105      }
3106  
3107      $alt_text = get_post_meta( $post->ID, '_wp_attachment_image_alt', true );
3108  
3109      $att_url = wp_get_attachment_url( $post->ID );
3110      ?>
3111      <div class="wp_attachment_holder wp-clearfix">
3112      <?php
3113  
3114      if ( wp_attachment_is_image( $post->ID ) ) :
3115          $image_edit_button = '';
3116          if ( wp_image_editor_supports( array( 'mime_type' => $post->post_mime_type ) ) ) {
3117              $nonce             = wp_create_nonce( "image_editor-$post->ID" );
3118              $image_edit_button = "<input type='button' id='imgedit-open-btn-$post->ID' onclick='imageEdit.open( $post->ID, \"$nonce\" )' class='button' value='" . esc_attr__( 'Edit Image' ) . "' /> <span class='spinner'></span>";
3119          }
3120  
3121          $open_style     = '';
3122          $not_open_style = '';
3123  
3124          if ( $open ) {
3125              $open_style = ' style="display:none"';
3126          } else {
3127              $not_open_style = ' style="display:none"';
3128          }
3129  
3130          ?>
3131          <div class="imgedit-response" id="imgedit-response-<?php echo $attachment_id; ?>"></div>
3132  
3133          <div<?php echo $open_style; ?> class="wp_attachment_image wp-clearfix" id="media-head-<?php echo $attachment_id; ?>">
3134              <p id="thumbnail-head-<?php echo $attachment_id; ?>"><img class="thumbnail" src="<?php echo set_url_scheme( $thumb_url[0] ); ?>" style="max-width:100%" alt="" /></p>
3135              <p><?php echo $image_edit_button; ?></p>
3136          </div>
3137          <div<?php echo $not_open_style; ?> class="image-editor" id="image-editor-<?php echo $attachment_id; ?>">
3138          <?php
3139  
3140          if ( $open ) {
3141              wp_image_editor( $attachment_id );
3142          }
3143  
3144          ?>
3145          </div>
3146          <?php
3147      elseif ( $attachment_id && wp_attachment_is( 'audio', $post ) ) :
3148  
3149          wp_maybe_generate_attachment_metadata( $post );
3150  
3151          echo wp_audio_shortcode( array( 'src' => $att_url ) );
3152  
3153      elseif ( $attachment_id && wp_attachment_is( 'video', $post ) ) :
3154  
3155          wp_maybe_generate_attachment_metadata( $post );
3156  
3157          $meta = wp_get_attachment_metadata( $attachment_id );
3158          $w    = ! empty( $meta['width'] ) ? min( $meta['width'], 640 ) : 0;
3159          $h    = ! empty( $meta['height'] ) ? $meta['height'] : 0;
3160  
3161          if ( $h && $w < $meta['width'] ) {
3162              $h = round( ( $meta['height'] * $w ) / $meta['width'] );
3163          }
3164  
3165          $attr = array( 'src' => $att_url );
3166  
3167          if ( ! empty( $w ) && ! empty( $h ) ) {
3168              $attr['width']  = $w;
3169              $attr['height'] = $h;
3170          }
3171  
3172          $thumb_id = get_post_thumbnail_id( $attachment_id );
3173  
3174          if ( ! empty( $thumb_id ) ) {
3175              $attr['poster'] = wp_get_attachment_url( $thumb_id );
3176          }
3177  
3178          echo wp_video_shortcode( $attr );
3179  
3180      elseif ( isset( $thumb_url[0] ) ) :
3181          ?>
3182          <div class="wp_attachment_image wp-clearfix" id="media-head-<?php echo $attachment_id; ?>">
3183              <p id="thumbnail-head-<?php echo $attachment_id; ?>">
3184                  <img class="thumbnail" src="<?php echo set_url_scheme( $thumb_url[0] ); ?>" style="max-width:100%" alt="" />
3185              </p>
3186          </div>
3187          <?php
3188  
3189      else :
3190  
3191          /**
3192           * Fires when an attachment type can't be rendered in the edit form.
3193           *
3194           * @since 4.6.0
3195           *
3196           * @param WP_Post $post A post object.
3197           */
3198          do_action( 'wp_edit_form_attachment_display', $post );
3199  
3200      endif;
3201  
3202      ?>
3203      </div>
3204      <div class="wp_attachment_details edit-form-section">
3205      <?php if ( 'image' === substr( $post->post_mime_type, 0, 5 ) ) : ?>
3206          <p class="attachment-alt-text">
3207              <label for="attachment_alt"><strong><?php _e( 'Alternative Text' ); ?></strong></label><br />
3208              <input type="text" class="widefat" name="_wp_attachment_image_alt" id="attachment_alt" aria-describedby="alt-text-description" value="<?php echo esc_attr( $alt_text ); ?>" />
3209          </p>
3210          <p class="attachment-alt-text-description" id="alt-text-description">
3211          <?php
3212  
3213          printf(
3214              /* translators: 1: Link to tutorial, 2: Additional link attributes, 3: Accessibility text. */
3215              __( '<a href="%1$s" %2$s>Learn how to describe the purpose of the image%3$s</a>. Leave empty if the image is purely decorative.' ),
3216              esc_url( 'https://www.w3.org/WAI/tutorials/images/decision-tree' ),
3217              'target="_blank" rel="noopener"',
3218              sprintf(
3219                  '<span class="screen-reader-text"> %s</span>',
3220                  /* translators: Accessibility text. */
3221                  __( '(opens in a new tab)' )
3222              )
3223          );
3224  
3225          ?>
3226          </p>
3227      <?php endif; ?>
3228  
3229          <p>
3230              <label for="attachment_caption"><strong><?php _e( 'Caption' ); ?></strong></label><br />
3231              <textarea class="widefat" name="excerpt" id="attachment_caption"><?php echo $post->post_excerpt; ?></textarea>
3232          </p>
3233  
3234      <?php
3235  
3236      $quicktags_settings = array( 'buttons' => 'strong,em,link,block,del,ins,img,ul,ol,li,code,close' );
3237      $editor_args        = array(
3238          'textarea_name' => 'content',
3239          'textarea_rows' => 5,
3240          'media_buttons' => false,
3241          'tinymce'       => false,
3242          'quicktags'     => $quicktags_settings,
3243      );
3244  
3245      ?>
3246  
3247      <label for="attachment_content" class="attachment-content-description"><strong><?php _e( 'Description' ); ?></strong>
3248      <?php
3249  
3250      if ( preg_match( '#^(audio|video)/#', $post->post_mime_type ) ) {
3251          echo ': ' . __( 'Displayed on attachment pages.' );
3252      }
3253  
3254      ?>
3255      </label>
3256      <?php wp_editor( format_to_edit( $post->post_content ), 'attachment_content', $editor_args ); ?>
3257  
3258      </div>
3259      <?php
3260  
3261      $extras = get_compat_media_markup( $post->ID );
3262      echo $extras['item'];
3263      echo '<input type="hidden" id="image-edit-context" value="edit-attachment" />' . "\n";
3264  }
3265  
3266  /**
3267   * Displays non-editable attachment metadata in the publish meta box.
3268   *
3269   * @since 3.5.0
3270   */
3271  function attachment_submitbox_metadata() {
3272      $post          = get_post();
3273      $attachment_id = $post->ID;
3274  
3275      $file     = get_attached_file( $attachment_id );
3276      $filename = esc_html( wp_basename( $file ) );
3277  
3278      $media_dims = '';
3279      $meta       = wp_get_attachment_metadata( $attachment_id );
3280  
3281      if ( isset( $meta['width'], $meta['height'] ) ) {
3282          $media_dims .= "<span id='media-dims-$attachment_id'>{$meta['width']}&nbsp;&times;&nbsp;{$meta['height']}</span> ";
3283      }
3284      /** This filter is documented in wp-admin/includes/media.php */
3285      $media_dims = apply_filters( 'media_meta', $media_dims, $post );
3286  
3287      $att_url = wp_get_attachment_url( $attachment_id );
3288  
3289      $author = new WP_User( $post->post_author );
3290  
3291      $uploaded_by_name = __( '(no author)' );
3292      $uploaded_by_link = '';
3293  
3294      if ( $author->exists() ) {
3295          $uploaded_by_name = $author->display_name ? $author->display_name : $author->nickname;
3296          $uploaded_by_link = get_edit_user_link( $author->ID );
3297      }
3298      ?>
3299      <div class="misc-pub-section misc-pub-uploadedby">
3300          <?php if ( $uploaded_by_link ) { ?>
3301              <?php _e( 'Uploaded by:' ); ?> <a href="<?php echo $uploaded_by_link; ?>"><strong><?php echo $uploaded_by_name; ?></strong></a>
3302          <?php } else { ?>
3303              <?php _e( 'Uploaded by:' ); ?> <strong><?php echo $uploaded_by_name; ?></strong>
3304          <?php } ?>
3305      </div>
3306  
3307      <?php
3308      if ( $post->post_parent ) {
3309          $post_parent = get_post( $post->post_parent );
3310          if ( $post_parent ) {
3311              $uploaded_to_title = $post_parent->post_title ? $post_parent->post_title : __( '(no title)' );
3312              $uploaded_to_link  = get_edit_post_link( $post->post_parent, 'raw' );
3313              ?>
3314              <div class="misc-pub-section misc-pub-uploadedto">
3315                  <?php if ( $uploaded_to_link ) { ?>
3316                      <?php _e( 'Uploaded to:' ); ?> <a href="<?php echo $uploaded_to_link; ?>"><strong><?php echo $uploaded_to_title; ?></strong></a>
3317                  <?php } else { ?>
3318                      <?php _e( 'Uploaded to:' ); ?> <strong><?php echo $uploaded_to_title; ?></strong>
3319                  <?php } ?>
3320              </div>
3321              <?php
3322          }
3323      }
3324      ?>
3325  
3326      <div class="misc-pub-section misc-pub-attachment">
3327          <label for="attachment_url"><?php _e( 'File URL:' ); ?></label>
3328          <input type="text" class="widefat urlfield" readonly="readonly" name="attachment_url" id="attachment_url" value="<?php echo esc_attr( $att_url ); ?>" />
3329          <span class="copy-to-clipboard-container">
3330              <button type="button" class="button copy-attachment-url edit-media" data-clipboard-target="#attachment_url"><?php _e( 'Copy URL to clipboard' ); ?></button>
3331              <span class="success hidden" aria-hidden="true"><?php _e( 'Copied!' ); ?></span>
3332          </span>
3333      </div>
3334      <div class="misc-pub-section misc-pub-filename">
3335          <?php _e( 'File name:' ); ?> <strong><?php echo $filename; ?></strong>
3336      </div>
3337      <div class="misc-pub-section misc-pub-filetype">
3338          <?php _e( 'File type:' ); ?>
3339          <strong>
3340          <?php
3341  
3342          if ( preg_match( '/^.*?\.(\w+)$/', get_attached_file( $post->ID ), $matches ) ) {
3343              echo esc_html( strtoupper( $matches[1] ) );
3344              list( $mime_type ) = explode( '/', $post->post_mime_type );
3345              if ( 'image' !== $mime_type && ! empty( $meta['mime_type'] ) ) {
3346                  if ( "$mime_type/" . strtolower( $matches[1] ) !== $meta['mime_type'] ) {
3347                      echo ' (' . $meta['mime_type'] . ')';
3348                  }
3349              }
3350          } else {
3351              echo strtoupper( str_replace( 'image/', '', $post->post_mime_type ) );
3352          }
3353  
3354          ?>
3355          </strong>
3356      </div>
3357  
3358      <?php
3359  
3360      $file_size = false;
3361  
3362      if ( isset( $meta['filesize'] ) ) {
3363          $file_size = $meta['filesize'];
3364      } elseif ( file_exists( $file ) ) {
3365          $file_size = wp_filesize( $file );
3366      }
3367  
3368      if ( ! empty( $file_size ) ) {
3369          ?>
3370          <div class="misc-pub-section misc-pub-filesize">
3371              <?php _e( 'File size:' ); ?> <strong><?php echo size_format( $file_size ); ?></strong>
3372          </div>
3373          <?php
3374      }
3375  
3376      if ( preg_match( '#^(audio|video)/#', $post->post_mime_type ) ) {
3377          $fields = array(
3378              'length_formatted' => __( 'Length:' ),
3379              'bitrate'          => __( 'Bitrate:' ),
3380          );
3381  
3382          /**
3383           * Filters the audio and video metadata fields to be shown in the publish meta box.
3384           *
3385           * The key for each item in the array should correspond to an attachment
3386           * metadata key, and the value should be the desired label.
3387           *
3388           * @since 3.7.0
3389           * @since 4.9.0 Added the `$post` parameter.
3390           *
3391           * @param array   $fields An array of the attachment metadata keys and labels.
3392           * @param WP_Post $post   WP_Post object for the current attachment.
3393           */
3394          $fields = apply_filters( 'media_submitbox_misc_sections', $fields, $post );
3395  
3396          foreach ( $fields as $key => $label ) {
3397              if ( empty( $meta[ $key ] ) ) {
3398                  continue;
3399              }
3400  
3401              ?>
3402              <div class="misc-pub-section misc-pub-mime-meta misc-pub-<?php echo sanitize_html_class( $key ); ?>">
3403                  <?php echo $label; ?>
3404                  <strong>
3405                  <?php
3406  
3407                  switch ( $key ) {
3408                      case 'bitrate':
3409                          echo round( $meta['bitrate'] / 1000 ) . 'kb/s';
3410                          if ( ! empty( $meta['bitrate_mode'] ) ) {
3411                              echo ' ' . strtoupper( esc_html( $meta['bitrate_mode'] ) );
3412                          }
3413                          break;
3414                      default:
3415                          echo esc_html( $meta[ $key ] );
3416                          break;
3417                  }
3418  
3419                  ?>
3420                  </strong>
3421              </div>
3422              <?php
3423          }
3424  
3425          $fields = array(
3426              'dataformat' => __( 'Audio Format:' ),
3427              'codec'      => __( 'Audio Codec:' ),
3428          );
3429  
3430          /**
3431           * Filters the audio attachment metadata fields to be shown in the publish meta box.
3432           *
3433           * The key for each item in the array should correspond to an attachment
3434           * metadata key, and the value should be the desired label.
3435           *
3436           * @since 3.7.0
3437           * @since 4.9.0 Added the `$post` parameter.
3438           *
3439           * @param array   $fields An array of the attachment metadata keys and labels.
3440           * @param WP_Post $post   WP_Post object for the current attachment.
3441           */
3442          $audio_fields = apply_filters( 'audio_submitbox_misc_sections', $fields, $post );
3443  
3444          foreach ( $audio_fields as $key => $label ) {
3445              if ( empty( $meta['audio'][ $key ] ) ) {
3446                  continue;
3447              }
3448  
3449              ?>
3450              <div class="misc-pub-section misc-pub-audio misc-pub-<?php echo sanitize_html_class( $key ); ?>">
3451                  <?php echo $label; ?> <strong><?php echo esc_html( $meta['audio'][ $key ] ); ?></strong>
3452              </div>
3453              <?php
3454          }
3455      }
3456  
3457      if ( $media_dims ) {
3458          ?>
3459          <div class="misc-pub-section misc-pub-dimensions">
3460              <?php _e( 'Dimensions:' ); ?> <strong><?php echo $media_dims; ?></strong>
3461          </div>
3462          <?php
3463      }
3464  
3465      if ( ! empty( $meta['original_image'] ) ) {
3466          ?>
3467          <div class="misc-pub-section misc-pub-original-image">
3468              <?php _e( 'Original image:' ); ?>
3469              <a href="<?php echo esc_url( wp_get_original_image_url( $attachment_id ) ); ?>">
3470                  <?php echo esc_html( wp_basename( wp_get_original_image_path( $attachment_id ) ) ); ?>
3471              </a>
3472          </div>
3473          <?php
3474      }
3475  }
3476  
3477  /**
3478   * Parses ID3v2, ID3v1, and getID3 comments to extract usable data.
3479   *
3480   * @since 3.6.0
3481   *
3482   * @param array $metadata An existing array with data.
3483   * @param array $data Data supplied by ID3 tags.
3484   */
3485  function wp_add_id3_tag_data( &$metadata, $data ) {
3486      foreach ( array( 'id3v2', 'id3v1' ) as $version ) {
3487          if ( ! empty( $data[ $version ]['comments'] ) ) {
3488              foreach ( $data[ $version ]['comments'] as $key => $list ) {
3489                  if ( 'length' !== $key && ! empty( $list ) ) {
3490                      $metadata[ $key ] = wp_kses_post( reset( $list ) );
3491                      // Fix bug in byte stream analysis.
3492                      if ( 'terms_of_use' === $key && 0 === strpos( $metadata[ $key ], 'yright notice.' ) ) {
3493                          $metadata[ $key ] = 'Cop' . $metadata[ $key ];
3494                      }
3495                  }
3496              }
3497              break;
3498          }
3499      }
3500  
3501      if ( ! empty( $data['id3v2']['APIC'] ) ) {
3502          $image = reset( $data['id3v2']['APIC'] );
3503          if ( ! empty( $image['data'] ) ) {
3504              $metadata['image'] = array(
3505                  'data'   => $image['data'],
3506                  'mime'   => $image['image_mime'],
3507                  'width'  => $image['image_width'],
3508                  'height' => $image['image_height'],
3509              );
3510          }
3511      } elseif ( ! empty( $data['comments']['picture'] ) ) {
3512          $image = reset( $data['comments']['picture'] );
3513          if ( ! empty( $image['data'] ) ) {
3514              $metadata['image'] = array(
3515                  'data' => $image['data'],
3516                  'mime' => $image['image_mime'],
3517              );
3518          }
3519      }
3520  }
3521  
3522  /**
3523   * Retrieves metadata from a video file's ID3 tags.
3524   *
3525   * @since 3.6.0
3526   *
3527   * @param string $file Path to file.
3528   * @return array|false Returns array of metadata, if found.
3529   */
3530  function wp_read_video_metadata( $file ) {
3531      if ( ! file_exists( $file ) ) {
3532          return false;
3533      }
3534  
3535      $metadata = array();
3536  
3537      if ( ! defined( 'GETID3_TEMP_DIR' ) ) {
3538          define( 'GETID3_TEMP_DIR', get_temp_dir() );
3539      }
3540  
3541      if ( ! class_exists( 'getID3', false ) ) {
3542          require ABSPATH . WPINC . '/ID3/getid3.php';
3543      }
3544  
3545      $id3 = new getID3();
3546      // Required to get the `created_timestamp` value.
3547      $id3->options_audiovideo_quicktime_ReturnAtomData = true; // phpcs:ignore WordPress.NamingConventions.ValidVariableName
3548  
3549      $data = $id3->analyze( $file );
3550  
3551      if ( isset( $data['video']['lossless'] ) ) {
3552          $metadata['lossless'] = $data['video']['lossless'];
3553      }
3554  
3555      if ( ! empty( $data['video']['bitrate'] ) ) {
3556          $metadata['bitrate'] = (int) $data['video']['bitrate'];
3557      }
3558  
3559      if ( ! empty( $data['video']['bitrate_mode'] ) ) {
3560          $metadata['bitrate_mode'] = $data['video']['bitrate_mode'];
3561      }
3562  
3563      if ( ! empty( $data['filesize'] ) ) {
3564          $metadata['filesize'] = (int) $data['filesize'];
3565      }
3566  
3567      if ( ! empty( $data['mime_type'] ) ) {
3568          $metadata['mime_type'] = $data['mime_type'];
3569      }
3570  
3571      if ( ! empty( $data['playtime_seconds'] ) ) {
3572          $metadata['length'] = (int) round( $data['playtime_seconds'] );
3573      }
3574  
3575      if ( ! empty( $data['playtime_string'] ) ) {
3576          $metadata['length_formatted'] = $data['playtime_string'];
3577      }
3578  
3579      if ( ! empty( $data['video']['resolution_x'] ) ) {
3580          $metadata['width'] = (int) $data['video']['resolution_x'];
3581      }
3582  
3583      if ( ! empty( $data['video']['resolution_y'] ) ) {
3584          $metadata['height'] = (int) $data['video']['resolution_y'];
3585      }
3586  
3587      if ( ! empty( $data['fileformat'] ) ) {
3588          $metadata['fileformat'] = $data['fileformat'];
3589      }
3590  
3591      if ( ! empty( $data['video']['dataformat'] ) ) {
3592          $metadata['dataformat'] = $data['video']['dataformat'];
3593      }
3594  
3595      if ( ! empty( $data['video']['encoder'] ) ) {
3596          $metadata['encoder'] = $data['video']['encoder'];
3597      }
3598  
3599      if ( ! empty( $data['video']['codec'] ) ) {
3600          $metadata['codec'] = $data['video']['codec'];
3601      }
3602  
3603      if ( ! empty( $data['audio'] ) ) {
3604          unset( $data['audio']['streams'] );
3605          $metadata['audio'] = $data['audio'];
3606      }
3607  
3608      if ( empty( $metadata['created_timestamp'] ) ) {
3609          $created_timestamp = wp_get_media_creation_timestamp( $data );
3610  
3611          if ( false !== $created_timestamp ) {
3612              $metadata['created_timestamp'] = $created_timestamp;
3613          }
3614      }
3615  
3616      wp_add_id3_tag_data( $metadata, $data );
3617  
3618      $file_format = isset( $metadata['fileformat'] ) ? $metadata['fileformat'] : null;
3619  
3620      /**
3621       * Filters the array of metadata retrieved from a video.
3622       *
3623       * In core, usually this selection is what is stored.
3624       * More complete data can be parsed from the `$data` parameter.
3625       *
3626       * @since 4.9.0
3627       *
3628       * @param array  $metadata       Filtered Video metadata.
3629       * @param string $file           Path to video file.
3630       * @param string $file_format    File format of video, as analyzed by getID3.
3631       * @param array  $data           Raw metadata from getID3.
3632       */
3633      return apply_filters( 'wp_read_video_metadata', $metadata, $file, $file_format, $data );
3634  }
3635  
3636  /**
3637   * Retrieves metadata from an audio file's ID3 tags.
3638   *
3639   * @since 3.6.0
3640   *
3641   * @param string $file Path to file.
3642   * @return array|false Returns array of metadata, if found.
3643   */
3644  function wp_read_audio_metadata( $file ) {
3645      if ( ! file_exists( $file ) ) {
3646          return false;
3647      }
3648  
3649      $metadata = array();
3650  
3651      if ( ! defined( 'GETID3_TEMP_DIR' ) ) {
3652          define( 'GETID3_TEMP_DIR', get_temp_dir() );
3653      }
3654  
3655      if ( ! class_exists( 'getID3', false ) ) {
3656          require ABSPATH . WPINC . '/ID3/getid3.php';
3657      }
3658  
3659      $id3 = new getID3();
3660      // Required to get the `created_timestamp` value.
3661      $id3->options_audiovideo_quicktime_ReturnAtomData = true; // phpcs:ignore WordPress.NamingConventions.ValidVariableName
3662  
3663      $data = $id3->analyze( $file );
3664  
3665      if ( ! empty( $data['audio'] ) ) {
3666          unset( $data['audio']['streams'] );
3667          $metadata = $data['audio'];
3668      }
3669  
3670      if ( ! empty( $data['fileformat'] ) ) {
3671          $metadata['fileformat'] = $data['fileformat'];
3672      }
3673  
3674      if ( ! empty( $data['filesize'] ) ) {
3675          $metadata['filesize'] = (int) $data['filesize'];
3676      }
3677  
3678      if ( ! empty( $data['mime_type'] ) ) {
3679          $metadata['mime_type'] = $data['mime_type'];
3680      }
3681  
3682      if ( ! empty( $data['playtime_seconds'] ) ) {
3683          $metadata['length'] = (int) round( $data['playtime_seconds'] );
3684      }
3685  
3686      if ( ! empty( $data['playtime_string'] ) ) {
3687          $metadata['length_formatted'] = $data['playtime_string'];
3688      }
3689  
3690      if ( empty( $metadata['created_timestamp'] ) ) {
3691          $created_timestamp = wp_get_media_creation_timestamp( $data );
3692  
3693          if ( false !== $created_timestamp ) {
3694              $metadata['created_timestamp'] = $created_timestamp;
3695          }
3696      }
3697  
3698      wp_add_id3_tag_data( $metadata, $data );
3699  
3700      return $metadata;
3701  }
3702  
3703  /**
3704   * Parses creation date from media metadata.
3705   *
3706   * The getID3 library doesn't have a standard method for getting creation dates,
3707   * so the location of this data can vary based on the MIME type.
3708   *
3709   * @since 4.9.0
3710   *
3711   * @link https://github.com/JamesHeinrich/getID3/blob/master/structure.txt
3712   *
3713   * @param array $metadata The metadata returned by getID3::analyze().
3714   * @return int|false A UNIX timestamp for the media's creation date if available
3715   *                   or a boolean FALSE if a timestamp could not be determined.
3716   */
3717  function wp_get_media_creation_timestamp( $metadata ) {
3718      $creation_date = false;
3719  
3720      if ( empty( $metadata['fileformat'] ) ) {
3721          return $creation_date;
3722      }
3723  
3724      switch ( $metadata['fileformat'] ) {
3725          case 'asf':
3726              if ( isset( $metadata['asf']['file_properties_object']['creation_date_unix'] ) ) {
3727                  $creation_date = (int) $metadata['asf']['file_properties_object']['creation_date_unix'];
3728              }
3729              break;
3730  
3731          case 'matroska':
3732          case 'webm':
3733              if ( isset( $metadata['matroska']['comments']['creation_time'][0] ) ) {
3734                  $creation_date = strtotime( $metadata['matroska']['comments']['creation_time'][0] );
3735              } elseif ( isset( $metadata['matroska']['info'][0]['DateUTC_unix'] ) ) {
3736                  $creation_date = (int) $metadata['matroska']['info'][0]['DateUTC_unix'];
3737              }
3738              break;
3739  
3740          case 'quicktime':
3741          case 'mp4':
3742              if ( isset( $metadata['quicktime']['moov']['subatoms'][0]['creation_time_unix'] ) ) {
3743                  $creation_date = (int) $metadata['quicktime']['moov']['subatoms'][0]['creation_time_unix'];
3744              }
3745              break;
3746      }
3747  
3748      return $creation_date;
3749  }
3750  
3751  /**
3752   * Encapsulates the logic for Attach/Detach actions.
3753   *
3754   * @since 4.2.0
3755   *
3756   * @global wpdb $wpdb WordPress database abstraction object.
3757   *
3758   * @param int    $parent_id Attachment parent ID.
3759   * @param string $action    Optional. Attach/detach action. Accepts 'attach' or 'detach'.
3760   *                          Default 'attach'.
3761   */
3762  function wp_media_attach_action( $parent_id, $action = 'attach' ) {
3763      global $wpdb;
3764  
3765      if ( ! $parent_id ) {
3766          return;
3767      }
3768  
3769      if ( ! current_user_can( 'edit_post', $parent_id ) ) {
3770          wp_die( __( 'Sorry, you are not allowed to edit this post.' ) );
3771      }
3772  
3773      $ids = array();
3774  
3775      foreach ( (array) $_REQUEST['media'] as $attachment_id ) {
3776          $attachment_id = (int) $attachment_id;
3777  
3778          if ( ! current_user_can( 'edit_post', $attachment_id ) ) {
3779              continue;
3780          }
3781  
3782          $ids[] = $attachment_id;
3783      }
3784  
3785      if ( ! empty( $ids ) ) {
3786          $ids_string = implode( ',', $ids );
3787  
3788          if ( 'attach' === $action ) {
3789              $result = $wpdb->query( $wpdb->prepare( "UPDATE $wpdb->posts SET post_parent = %d WHERE post_type = 'attachment' AND ID IN ( $ids_string )", $parent_id ) );
3790          } else {
3791              $result = $wpdb->query( "UPDATE $wpdb->posts SET post_parent = 0 WHERE post_type = 'attachment' AND ID IN ( $ids_string )" );
3792          }
3793      }
3794  
3795      if ( isset( $result ) ) {
3796          foreach ( $ids as $attachment_id ) {
3797              /**
3798               * Fires when media is attached or detached from a post.
3799               *
3800               * @since 5.5.0
3801               *
3802               * @param string $action        Attach/detach action. Accepts 'attach' or 'detach'.
3803               * @param int    $attachment_id The attachment ID.
3804               * @param int    $parent_id     Attachment parent ID.
3805               */
3806              do_action( 'wp_media_attach_action', $action, $attachment_id, $parent_id );
3807  
3808              clean_attachment_cache( $attachment_id );
3809          }
3810  
3811          $location = 'upload.php';
3812          $referer  = wp_get_referer();
3813  
3814          if ( $referer ) {
3815              if ( false !== strpos( $referer, 'upload.php' ) ) {
3816                  $location = remove_query_arg( array( 'attached', 'detach' ), $referer );
3817              }
3818          }
3819  
3820          $key      = 'attach' === $action ? 'attached' : 'detach';
3821          $location = add_query_arg( array( $key => $result ), $location );
3822  
3823          wp_redirect( $location );
3824          exit;
3825      }
3826  }


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