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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. Required.
 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 ( isset( $track_number[1] ) ) {
 365                  /* translators: Audio file track information. 1: Audio track number, 2: Total audio tracks. */
 366                  $content .= ' ' . sprintf( __( 'Track %1$s of %2$s.' ), number_format_i18n( $track_number[0] ), number_format_i18n( $track_number[1] ) );
 367              } else {
 368                  /* translators: Audio file track information. %s: Audio track number. */
 369                  $content .= ' ' . sprintf( __( 'Track %s.' ), number_format_i18n( $track_number[0] ) );
 370              }
 371          }
 372  
 373          if ( ! empty( $meta['genre'] ) ) {
 374              /* translators: Audio file genre information. %s: Audio genre name. */
 375              $content .= ' ' . sprintf( __( 'Genre: %s.' ), $meta['genre'] );
 376          }
 377  
 378          // Use image exif/iptc data for title and caption defaults if possible.
 379      } elseif ( 0 === strpos( $type, 'image/' ) ) {
 380          $image_meta = wp_read_image_metadata( $file );
 381  
 382          if ( $image_meta ) {
 383              if ( trim( $image_meta['title'] ) && ! is_numeric( sanitize_title( $image_meta['title'] ) ) ) {
 384                  $title = $image_meta['title'];
 385              }
 386  
 387              if ( trim( $image_meta['caption'] ) ) {
 388                  $excerpt = $image_meta['caption'];
 389              }
 390          }
 391      }
 392  
 393      // Construct the attachment array.
 394      $attachment = array_merge(
 395          array(
 396              'post_mime_type' => $type,
 397              'guid'           => $url,
 398              'post_parent'    => $post_id,
 399              'post_title'     => $title,
 400              'post_content'   => $content,
 401              'post_excerpt'   => $excerpt,
 402          ),
 403          $post_data
 404      );
 405  
 406      // This should never be set as it would then overwrite an existing attachment.
 407      unset( $attachment['ID'] );
 408  
 409      // Save the data.
 410      $attachment_id = wp_insert_attachment( $attachment, $file, $post_id, true );
 411  
 412      if ( ! is_wp_error( $attachment_id ) ) {
 413          // Set a custom header with the attachment_id.
 414          // Used by the browser/client to resume creating image sub-sizes after a PHP fatal error.
 415          if ( ! headers_sent() ) {
 416              header( 'X-WP-Upload-Attachment-ID: ' . $attachment_id );
 417          }
 418  
 419          // The image sub-sizes are created during wp_generate_attachment_metadata().
 420          // This is generally slow and may cause timeouts or out of memory errors.
 421          wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) );
 422      }
 423  
 424      return $attachment_id;
 425  }
 426  
 427  /**
 428   * Handles a side-loaded file in the same way as an uploaded file is handled by media_handle_upload().
 429   *
 430   * @since 2.6.0
 431   * @since 5.3.0 The `$post_id` parameter was made optional.
 432   *
 433   * @param string[] $file_array Array that represents a `$_FILES` upload array.
 434   * @param int      $post_id    Optional. The post ID the media is associated with.
 435   * @param string   $desc       Optional. Description of the side-loaded file. Default null.
 436   * @param array    $post_data  Optional. Post data to override. Default empty array.
 437   * @return int|WP_Error The ID of the attachment or a WP_Error on failure.
 438   */
 439  function media_handle_sideload( $file_array, $post_id = 0, $desc = null, $post_data = array() ) {
 440      $overrides = array( 'test_form' => false );
 441  
 442      if ( isset( $post_data['post_date'] ) && substr( $post_data['post_date'], 0, 4 ) > 0 ) {
 443          $time = $post_data['post_date'];
 444      } else {
 445          $post = get_post( $post_id );
 446          if ( $post && substr( $post->post_date, 0, 4 ) > 0 ) {
 447              $time = $post->post_date;
 448          } else {
 449              $time = current_time( 'mysql' );
 450          }
 451      }
 452  
 453      $file = wp_handle_sideload( $file_array, $overrides, $time );
 454  
 455      if ( isset( $file['error'] ) ) {
 456          return new WP_Error( 'upload_error', $file['error'] );
 457      }
 458  
 459      $url     = $file['url'];
 460      $type    = $file['type'];
 461      $file    = $file['file'];
 462      $title   = preg_replace( '/\.[^.]+$/', '', wp_basename( $file ) );
 463      $content = '';
 464  
 465      // Use image exif/iptc data for title and caption defaults if possible.
 466      $image_meta = wp_read_image_metadata( $file );
 467  
 468      if ( $image_meta ) {
 469          if ( trim( $image_meta['title'] ) && ! is_numeric( sanitize_title( $image_meta['title'] ) ) ) {
 470              $title = $image_meta['title'];
 471          }
 472  
 473          if ( trim( $image_meta['caption'] ) ) {
 474              $content = $image_meta['caption'];
 475          }
 476      }
 477  
 478      if ( isset( $desc ) ) {
 479          $title = $desc;
 480      }
 481  
 482      // Construct the attachment array.
 483      $attachment = array_merge(
 484          array(
 485              'post_mime_type' => $type,
 486              'guid'           => $url,
 487              'post_parent'    => $post_id,
 488              'post_title'     => $title,
 489              'post_content'   => $content,
 490          ),
 491          $post_data
 492      );
 493  
 494      // This should never be set as it would then overwrite an existing attachment.
 495      unset( $attachment['ID'] );
 496  
 497      // Save the attachment metadata.
 498      $attachment_id = wp_insert_attachment( $attachment, $file, $post_id, true );
 499  
 500      if ( ! is_wp_error( $attachment_id ) ) {
 501          wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) );
 502      }
 503  
 504      return $attachment_id;
 505  }
 506  
 507  /**
 508   * Outputs the iframe to display the media upload page.
 509   *
 510   * @since 2.5.0
 511   * @since 5.3.0 Formalized the existing and already documented `...$args` parameter
 512   *              by adding it to the function signature.
 513   *
 514   * @global int $body_id
 515   *
 516   * @param callable $content_func Function that outputs the content.
 517   * @param mixed    ...$args      Optional additional parameters to pass to the callback function when it's called.
 518   */
 519  function wp_iframe( $content_func, ...$args ) {
 520      _wp_admin_html_begin();
 521      ?>
 522      <title><?php bloginfo( 'name' ); ?> &rsaquo; <?php _e( 'Uploads' ); ?> &#8212; <?php _e( 'WordPress' ); ?></title>
 523      <?php
 524  
 525      wp_enqueue_style( 'colors' );
 526      // Check callback name for 'media'.
 527      if (
 528          ( is_array( $content_func ) && ! empty( $content_func[1] ) && 0 === strpos( (string) $content_func[1], 'media' ) ) ||
 529          ( ! is_array( $content_func ) && 0 === strpos( $content_func, 'media' ) )
 530      ) {
 531          wp_enqueue_style( 'deprecated-media' );
 532      }
 533  
 534      ?>
 535      <script type="text/javascript">
 536      addLoadEvent = function(func){if(typeof jQuery!=='undefined')jQuery(document).ready(func);else if(typeof wpOnload!=='function'){wpOnload=func;}else{var oldonload=wpOnload;wpOnload=function(){oldonload();func();}}};
 537      var ajaxurl = '<?php echo esc_js( admin_url( 'admin-ajax.php', 'relative' ) ); ?>', pagenow = 'media-upload-popup', adminpage = 'media-upload-popup',
 538      isRtl = <?php echo (int) is_rtl(); ?>;
 539      </script>
 540      <?php
 541      /** This action is documented in wp-admin/admin-header.php */
 542      do_action( 'admin_enqueue_scripts', 'media-upload-popup' );
 543  
 544      /**
 545       * Fires when admin styles enqueued for the legacy (pre-3.5.0) media upload popup are printed.
 546       *
 547       * @since 2.9.0
 548       */
 549      do_action( 'admin_print_styles-media-upload-popup' );  // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
 550  
 551      /** This action is documented in wp-admin/admin-header.php */
 552      do_action( 'admin_print_styles' );
 553  
 554      /**
 555       * Fires when admin scripts enqueued for the legacy (pre-3.5.0) media upload popup are printed.
 556       *
 557       * @since 2.9.0
 558       */
 559      do_action( 'admin_print_scripts-media-upload-popup' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
 560  
 561      /** This action is documented in wp-admin/admin-header.php */
 562      do_action( 'admin_print_scripts' );
 563  
 564      /**
 565       * Fires when scripts enqueued for the admin header for the legacy (pre-3.5.0)
 566       * media upload popup are printed.
 567       *
 568       * @since 2.9.0
 569       */
 570      do_action( 'admin_head-media-upload-popup' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
 571  
 572      /** This action is documented in wp-admin/admin-header.php */
 573      do_action( 'admin_head' );
 574  
 575      if ( is_string( $content_func ) ) {
 576          /**
 577           * Fires in the admin header for each specific form tab in the legacy
 578           * (pre-3.5.0) media upload popup.
 579           *
 580           * The dynamic portion of the hook, `$content_func`, refers to the form
 581           * callback for the media upload type. Possible values include
 582           * 'media_upload_type_form', 'media_upload_type_url_form', and
 583           * 'media_upload_library_form'.
 584           *
 585           * @since 2.5.0
 586           */
 587          do_action( "admin_head_{$content_func}" );
 588      }
 589  
 590      $body_id_attr = '';
 591  
 592      if ( isset( $GLOBALS['body_id'] ) ) {
 593          $body_id_attr = ' id="' . $GLOBALS['body_id'] . '"';
 594      }
 595  
 596      ?>
 597      </head>
 598      <body<?php echo $body_id_attr; ?> class="wp-core-ui no-js">
 599      <script type="text/javascript">
 600      document.body.className = document.body.className.replace('no-js', 'js');
 601      </script>
 602      <?php
 603  
 604      call_user_func_array( $content_func, $args );
 605  
 606      /** This action is documented in wp-admin/admin-footer.php */
 607      do_action( 'admin_print_footer_scripts' );
 608  
 609      ?>
 610      <script type="text/javascript">if(typeof wpOnload==='function')wpOnload();</script>
 611      </body>
 612      </html>
 613      <?php
 614  }
 615  
 616  /**
 617   * Adds the media button to the editor
 618   *
 619   * @since 2.5.0
 620   *
 621   * @global int $post_ID
 622   *
 623   * @param string $editor_id
 624   */
 625  function media_buttons( $editor_id = 'content' ) {
 626      static $instance = 0;
 627      $instance++;
 628  
 629      $post = get_post();
 630  
 631      if ( ! $post && ! empty( $GLOBALS['post_ID'] ) ) {
 632          $post = $GLOBALS['post_ID'];
 633      }
 634  
 635      wp_enqueue_media( array( 'post' => $post ) );
 636  
 637      $img = '<span class="wp-media-buttons-icon"></span> ';
 638  
 639      $id_attribute = 1 === $instance ? ' id="insert-media-button"' : '';
 640  
 641      printf(
 642          '<button type="button"%s class="button insert-media add_media" data-editor="%s">%s</button>',
 643          $id_attribute,
 644          esc_attr( $editor_id ),
 645          $img . __( 'Add Media' )
 646      );
 647  
 648      /**
 649       * Filters the legacy (pre-3.5.0) media buttons.
 650       *
 651       * Use {@see 'media_buttons'} action instead.
 652       *
 653       * @since 2.5.0
 654       * @deprecated 3.5.0 Use {@see 'media_buttons'} action instead.
 655       *
 656       * @param string $string Media buttons context. Default empty.
 657       */
 658      $legacy_filter = apply_filters_deprecated( 'media_buttons_context', array( '' ), '3.5.0', 'media_buttons' );
 659  
 660      if ( $legacy_filter ) {
 661          // #WP22559. Close <a> if a plugin started by closing <a> to open their own <a> tag.
 662          if ( 0 === stripos( trim( $legacy_filter ), '</a>' ) ) {
 663              $legacy_filter .= '</a>';
 664          }
 665          echo $legacy_filter;
 666      }
 667  }
 668  
 669  /**
 670   * @global int $post_ID
 671   * @param string $type
 672   * @param int    $post_id
 673   * @param string $tab
 674   * @return string
 675   */
 676  function get_upload_iframe_src( $type = null, $post_id = null, $tab = null ) {
 677      global $post_ID;
 678  
 679      if ( empty( $post_id ) ) {
 680          $post_id = $post_ID;
 681      }
 682  
 683      $upload_iframe_src = add_query_arg( 'post_id', (int) $post_id, admin_url( 'media-upload.php' ) );
 684  
 685      if ( $type && 'media' !== $type ) {
 686          $upload_iframe_src = add_query_arg( 'type', $type, $upload_iframe_src );
 687      }
 688  
 689      if ( ! empty( $tab ) ) {
 690          $upload_iframe_src = add_query_arg( 'tab', $tab, $upload_iframe_src );
 691      }
 692  
 693      /**
 694       * Filters the upload iframe source URL for a specific media type.
 695       *
 696       * The dynamic portion of the hook name, `$type`, refers to the type
 697       * of media uploaded.
 698       *
 699       * Possible hook names include:
 700       *
 701       *  - `image_upload_iframe_src`
 702       *  - `media_upload_iframe_src`
 703       *
 704       * @since 3.0.0
 705       *
 706       * @param string $upload_iframe_src The upload iframe source URL.
 707       */
 708      $upload_iframe_src = apply_filters( "{$type}_upload_iframe_src", $upload_iframe_src );
 709  
 710      return add_query_arg( 'TB_iframe', true, $upload_iframe_src );
 711  }
 712  
 713  /**
 714   * Handles form submissions for the legacy media uploader.
 715   *
 716   * @since 2.5.0
 717   *
 718   * @return mixed void|object WP_Error on failure
 719   */
 720  function media_upload_form_handler() {
 721      check_admin_referer( 'media-form' );
 722  
 723      $errors = null;
 724  
 725      if ( isset( $_POST['send'] ) ) {
 726          $keys    = array_keys( $_POST['send'] );
 727          $send_id = (int) reset( $keys );
 728      }
 729  
 730      if ( ! empty( $_POST['attachments'] ) ) {
 731          foreach ( $_POST['attachments'] as $attachment_id => $attachment ) {
 732              $post  = get_post( $attachment_id, ARRAY_A );
 733              $_post = $post;
 734  
 735              if ( ! current_user_can( 'edit_post', $attachment_id ) ) {
 736                  continue;
 737              }
 738  
 739              if ( isset( $attachment['post_content'] ) ) {
 740                  $post['post_content'] = $attachment['post_content'];
 741              }
 742  
 743              if ( isset( $attachment['post_title'] ) ) {
 744                  $post['post_title'] = $attachment['post_title'];
 745              }
 746  
 747              if ( isset( $attachment['post_excerpt'] ) ) {
 748                  $post['post_excerpt'] = $attachment['post_excerpt'];
 749              }
 750  
 751              if ( isset( $attachment['menu_order'] ) ) {
 752                  $post['menu_order'] = $attachment['menu_order'];
 753              }
 754  
 755              if ( isset( $send_id ) && $attachment_id == $send_id ) {
 756                  if ( isset( $attachment['post_parent'] ) ) {
 757                      $post['post_parent'] = $attachment['post_parent'];
 758                  }
 759              }
 760  
 761              /**
 762               * Filters the attachment fields to be saved.
 763               *
 764               * @since 2.5.0
 765               *
 766               * @see wp_get_attachment_metadata()
 767               *
 768               * @param array $post       An array of post data.
 769               * @param array $attachment An array of attachment metadata.
 770               */
 771              $post = apply_filters( 'attachment_fields_to_save', $post, $attachment );
 772  
 773              if ( isset( $attachment['image_alt'] ) ) {
 774                  $image_alt = wp_unslash( $attachment['image_alt'] );
 775  
 776                  if ( get_post_meta( $attachment_id, '_wp_attachment_image_alt', true ) !== $image_alt ) {
 777                      $image_alt = wp_strip_all_tags( $image_alt, true );
 778  
 779                      // update_post_meta() expects slashed.
 780                      update_post_meta( $attachment_id, '_wp_attachment_image_alt', wp_slash( $image_alt ) );
 781                  }
 782              }
 783  
 784              if ( isset( $post['errors'] ) ) {
 785                  $errors[ $attachment_id ] = $post['errors'];
 786                  unset( $post['errors'] );
 787              }
 788  
 789              if ( $post != $_post ) {
 790                  wp_update_post( $post );
 791              }
 792  
 793              foreach ( get_attachment_taxonomies( $post ) as $t ) {
 794                  if ( isset( $attachment[ $t ] ) ) {
 795                      wp_set_object_terms( $attachment_id, array_map( 'trim', preg_split( '/,+/', $attachment[ $t ] ) ), $t, false );
 796                  }
 797              }
 798          }
 799      }
 800  
 801      if ( isset( $_POST['insert-gallery'] ) || isset( $_POST['update-gallery'] ) ) {
 802          ?>
 803          <script type="text/javascript">
 804          var win = window.dialogArguments || opener || parent || top;
 805          win.tb_remove();
 806          </script>
 807          <?php
 808  
 809          exit;
 810      }
 811  
 812      if ( isset( $send_id ) ) {
 813          $attachment = wp_unslash( $_POST['attachments'][ $send_id ] );
 814          $html       = isset( $attachment['post_title'] ) ? $attachment['post_title'] : '';
 815  
 816          if ( ! empty( $attachment['url'] ) ) {
 817              $rel = '';
 818  
 819              if ( strpos( $attachment['url'], 'attachment_id' ) || get_attachment_link( $send_id ) == $attachment['url'] ) {
 820                  $rel = " rel='attachment wp-att-" . esc_attr( $send_id ) . "'";
 821              }
 822  
 823              $html = "<a href='{$attachment['url']}'$rel>$html</a>";
 824          }
 825  
 826          /**
 827           * Filters the HTML markup for a media item sent to the editor.
 828           *
 829           * @since 2.5.0
 830           *
 831           * @see wp_get_attachment_metadata()
 832           *
 833           * @param string $html       HTML markup for a media item sent to the editor.
 834           * @param int    $send_id    The first key from the $_POST['send'] data.
 835           * @param array  $attachment Array of attachment metadata.
 836           */
 837          $html = apply_filters( 'media_send_to_editor', $html, $send_id, $attachment );
 838  
 839          return media_send_to_editor( $html );
 840      }
 841  
 842      return $errors;
 843  }
 844  
 845  /**
 846   * Handles the process of uploading media.
 847   *
 848   * @since 2.5.0
 849   *
 850   * @return null|string
 851   */
 852  function wp_media_upload_handler() {
 853      $errors = array();
 854      $id     = 0;
 855  
 856      if ( isset( $_POST['html-upload'] ) && ! empty( $_FILES ) ) {
 857          check_admin_referer( 'media-form' );
 858          // Upload File button was clicked.
 859          $id = media_handle_upload( 'async-upload', $_REQUEST['post_id'] );
 860          unset( $_FILES );
 861  
 862          if ( is_wp_error( $id ) ) {
 863              $errors['upload_error'] = $id;
 864              $id                     = false;
 865          }
 866      }
 867  
 868      if ( ! empty( $_POST['insertonlybutton'] ) ) {
 869          $src = $_POST['src'];
 870  
 871          if ( ! empty( $src ) && ! strpos( $src, '://' ) ) {
 872              $src = "http://$src";
 873          }
 874  
 875          if ( isset( $_POST['media_type'] ) && 'image' !== $_POST['media_type'] ) {
 876              $title = esc_html( wp_unslash( $_POST['title'] ) );
 877              if ( empty( $title ) ) {
 878                  $title = esc_html( wp_basename( $src ) );
 879              }
 880  
 881              if ( $title && $src ) {
 882                  $html = "<a href='" . esc_url( $src ) . "'>$title</a>";
 883              }
 884  
 885              $type = 'file';
 886              $ext  = preg_replace( '/^.+?\.([^.]+)$/', '$1', $src );
 887  
 888              if ( $ext ) {
 889                  $ext_type = wp_ext2type( $ext );
 890                  if ( 'audio' === $ext_type || 'video' === $ext_type ) {
 891                      $type = $ext_type;
 892                  }
 893              }
 894  
 895              /**
 896               * Filters the URL sent to the editor for a specific media type.
 897               *
 898               * The dynamic portion of the hook name, `$type`, refers to the type
 899               * of media being sent.
 900               *
 901               * Possible hook names include:
 902               *
 903               *  - `audio_send_to_editor_url`
 904               *  - `file_send_to_editor_url`
 905               *  - `video_send_to_editor_url`
 906               *
 907               * @since 3.3.0
 908               *
 909               * @param string $html  HTML markup sent to the editor.
 910               * @param string $src   Media source URL.
 911               * @param string $title Media title.
 912               */
 913              $html = apply_filters( "{$type}_send_to_editor_url", $html, esc_url_raw( $src ), $title );
 914          } else {
 915              $align = '';
 916              $alt   = esc_attr( wp_unslash( $_POST['alt'] ) );
 917  
 918              if ( isset( $_POST['align'] ) ) {
 919                  $align = esc_attr( wp_unslash( $_POST['align'] ) );
 920                  $class = " class='align$align'";
 921              }
 922  
 923              if ( ! empty( $src ) ) {
 924                  $html = "<img src='" . esc_url( $src ) . "' alt='$alt'$class />";
 925              }
 926  
 927              /**
 928               * Filters the image URL sent to the editor.
 929               *
 930               * @since 2.8.0
 931               *
 932               * @param string $html  HTML markup sent to the editor for an image.
 933               * @param string $src   Image source URL.
 934               * @param string $alt   Image alternate, or alt, text.
 935               * @param string $align The image alignment. Default 'alignnone'. Possible values include
 936               *                      'alignleft', 'aligncenter', 'alignright', 'alignnone'.
 937               */
 938              $html = apply_filters( 'image_send_to_editor_url', $html, esc_url_raw( $src ), $alt, $align );
 939          }
 940  
 941          return media_send_to_editor( $html );
 942      }
 943  
 944      if ( isset( $_POST['save'] ) ) {
 945          $errors['upload_notice'] = __( 'Saved.' );
 946          wp_enqueue_script( 'admin-gallery' );
 947  
 948          return wp_iframe( 'media_upload_gallery_form', $errors );
 949  
 950      } elseif ( ! empty( $_POST ) ) {
 951          $return = media_upload_form_handler();
 952  
 953          if ( is_string( $return ) ) {
 954              return $return;
 955          }
 956  
 957          if ( is_array( $return ) ) {
 958              $errors = $return;
 959          }
 960      }
 961  
 962      if ( isset( $_GET['tab'] ) && 'type_url' === $_GET['tab'] ) {
 963          $type = 'image';
 964  
 965          if ( isset( $_GET['type'] ) && in_array( $_GET['type'], array( 'video', 'audio', 'file' ), true ) ) {
 966              $type = $_GET['type'];
 967          }
 968  
 969          return wp_iframe( 'media_upload_type_url_form', $type, $errors, $id );
 970      }
 971  
 972      return wp_iframe( 'media_upload_type_form', 'image', $errors, $id );
 973  }
 974  
 975  /**
 976   * Downloads an image from the specified URL, saves it as an attachment, and optionally attaches it to a post.
 977   *
 978   * @since 2.6.0
 979   * @since 4.2.0 Introduced the `$return` parameter.
 980   * @since 4.8.0 Introduced the 'id' option for the `$return` parameter.
 981   * @since 5.3.0 The `$post_id` parameter was made optional.
 982   * @since 5.4.0 The original URL of the attachment is stored in the `_source_url`
 983   *              post meta value.
 984   *
 985   * @param string $file    The URL of the image to download.
 986   * @param int    $post_id Optional. The post ID the media is to be associated with.
 987   * @param string $desc    Optional. Description of the image.
 988   * @param string $return  Optional. Accepts 'html' (image tag html) or 'src' (URL),
 989   *                        or 'id' (attachment ID). Default 'html'.
 990   * @return string|int|WP_Error Populated HTML img tag, attachment ID, or attachment source
 991   *                             on success, WP_Error object otherwise.
 992   */
 993  function media_sideload_image( $file, $post_id = 0, $desc = null, $return = 'html' ) {
 994      if ( ! empty( $file ) ) {
 995  
 996          $allowed_extensions = array( 'jpg', 'jpeg', 'jpe', 'png', 'gif' );
 997  
 998          /**
 999           * Filters the list of allowed file extensions when sideloading an image from a URL.
1000           *
1001           * The default allowed extensions are:
1002           *
1003           *  - `jpg`
1004           *  - `jpeg`
1005           *  - `jpe`
1006           *  - `png`
1007           *  - `gif`
1008           *
1009           * @since 5.6.0
1010           *
1011           * @param string[] $allowed_extensions Array of allowed file extensions.
1012           * @param string   $file               The URL of the image to download.
1013           */
1014          $allowed_extensions = apply_filters( 'image_sideload_extensions', $allowed_extensions, $file );
1015          $allowed_extensions = array_map( 'preg_quote', $allowed_extensions );
1016  
1017          // Set variables for storage, fix file filename for query strings.
1018          preg_match( '/[^\?]+\.(' . implode( '|', $allowed_extensions ) . ')\b/i', $file, $matches );
1019  
1020          if ( ! $matches ) {
1021              return new WP_Error( 'image_sideload_failed', __( 'Invalid image URL.' ) );
1022          }
1023  
1024          $file_array         = array();
1025          $file_array['name'] = wp_basename( $matches[0] );
1026  
1027          // Download file to temp location.
1028          $file_array['tmp_name'] = download_url( $file );
1029  
1030          // If error storing temporarily, return the error.
1031          if ( is_wp_error( $file_array['tmp_name'] ) ) {
1032              return $file_array['tmp_name'];
1033          }
1034  
1035          // Do the validation and storage stuff.
1036          $id = media_handle_sideload( $file_array, $post_id, $desc );
1037  
1038          // If error storing permanently, unlink.
1039          if ( is_wp_error( $id ) ) {
1040              @unlink( $file_array['tmp_name'] );
1041              return $id;
1042          }
1043  
1044          // Store the original attachment source in meta.
1045          add_post_meta( $id, '_source_url', $file );
1046  
1047          // If attachment ID was requested, return it.
1048          if ( 'id' === $return ) {
1049              return $id;
1050          }
1051  
1052          $src = wp_get_attachment_url( $id );
1053      }
1054  
1055      // Finally, check to make sure the file has been saved, then return the HTML.
1056      if ( ! empty( $src ) ) {
1057          if ( 'src' === $return ) {
1058              return $src;
1059          }
1060  
1061          $alt  = isset( $desc ) ? esc_attr( $desc ) : '';
1062          $html = "<img src='$src' alt='$alt' />";
1063  
1064          return $html;
1065      } else {
1066          return new WP_Error( 'image_sideload_failed' );
1067      }
1068  }
1069  
1070  /**
1071   * Retrieves the legacy media uploader form in an iframe.
1072   *
1073   * @since 2.5.0
1074   *
1075   * @return string|null
1076   */
1077  function media_upload_gallery() {
1078      $errors = array();
1079  
1080      if ( ! empty( $_POST ) ) {
1081          $return = media_upload_form_handler();
1082  
1083          if ( is_string( $return ) ) {
1084              return $return;
1085          }
1086  
1087          if ( is_array( $return ) ) {
1088              $errors = $return;
1089          }
1090      }
1091  
1092      wp_enqueue_script( 'admin-gallery' );
1093      return wp_iframe( 'media_upload_gallery_form', $errors );
1094  }
1095  
1096  /**
1097   * Retrieves the legacy media library form in an iframe.
1098   *
1099   * @since 2.5.0
1100   *
1101   * @return string|null
1102   */
1103  function media_upload_library() {
1104      $errors = array();
1105  
1106      if ( ! empty( $_POST ) ) {
1107          $return = media_upload_form_handler();
1108  
1109          if ( is_string( $return ) ) {
1110              return $return;
1111          }
1112          if ( is_array( $return ) ) {
1113              $errors = $return;
1114          }
1115      }
1116  
1117      return wp_iframe( 'media_upload_library_form', $errors );
1118  }
1119  
1120  /**
1121   * Retrieve HTML for the image alignment radio buttons with the specified one checked.
1122   *
1123   * @since 2.7.0
1124   *
1125   * @param WP_Post $post
1126   * @param string  $checked
1127   * @return string
1128   */
1129  function image_align_input_fields( $post, $checked = '' ) {
1130  
1131      if ( empty( $checked ) ) {
1132          $checked = get_user_setting( 'align', 'none' );
1133      }
1134  
1135      $alignments = array(
1136          'none'   => __( 'None' ),
1137          'left'   => __( 'Left' ),
1138          'center' => __( 'Center' ),
1139          'right'  => __( 'Right' ),
1140      );
1141  
1142      if ( ! array_key_exists( (string) $checked, $alignments ) ) {
1143          $checked = 'none';
1144      }
1145  
1146      $out = array();
1147  
1148      foreach ( $alignments as $name => $label ) {
1149          $name  = esc_attr( $name );
1150          $out[] = "<input type='radio' name='attachments[{$post->ID}][align]' id='image-align-{$name}-{$post->ID}' value='$name'" .
1151              ( $checked == $name ? " checked='checked'" : '' ) .
1152              " /><label for='image-align-{$name}-{$post->ID}' class='align image-align-{$name}-label'>$label</label>";
1153      }
1154  
1155      return implode( "\n", $out );
1156  }
1157  
1158  /**
1159   * Retrieve HTML for the size radio buttons with the specified one checked.
1160   *
1161   * @since 2.7.0
1162   *
1163   * @param WP_Post     $post
1164   * @param bool|string $check
1165   * @return array
1166   */
1167  function image_size_input_fields( $post, $check = '' ) {
1168      /**
1169       * Filters the names and labels of the default image sizes.
1170       *
1171       * @since 3.3.0
1172       *
1173       * @param string[] $size_names Array of image size labels keyed by their name. Default values
1174       *                             include 'Thumbnail', 'Medium', 'Large', and 'Full Size'.
1175       */
1176      $size_names = apply_filters(
1177          'image_size_names_choose',
1178          array(
1179              'thumbnail' => __( 'Thumbnail' ),
1180              'medium'    => __( 'Medium' ),
1181              'large'     => __( 'Large' ),
1182              'full'      => __( 'Full Size' ),
1183          )
1184      );
1185  
1186      if ( empty( $check ) ) {
1187          $check = get_user_setting( 'imgsize', 'medium' );
1188      }
1189  
1190      $out = array();
1191  
1192      foreach ( $size_names as $size => $label ) {
1193          $downsize = image_downsize( $post->ID, $size );
1194          $checked  = '';
1195  
1196          // Is this size selectable?
1197          $enabled = ( $downsize[3] || 'full' === $size );
1198          $css_id  = "image-size-{$size}-{$post->ID}";
1199  
1200          // If this size is the default but that's not available, don't select it.
1201          if ( $size == $check ) {
1202              if ( $enabled ) {
1203                  $checked = " checked='checked'";
1204              } else {
1205                  $check = '';
1206              }
1207          } elseif ( ! $check && $enabled && 'thumbnail' !== $size ) {
1208              /*
1209               * If $check is not enabled, default to the first available size
1210               * that's bigger than a thumbnail.
1211               */
1212              $check   = $size;
1213              $checked = " checked='checked'";
1214          }
1215  
1216          $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 />";
1217  
1218          $html .= "<label for='{$css_id}'>$label</label>";
1219  
1220          // Only show the dimensions if that choice is available.
1221          if ( $enabled ) {
1222              $html .= " <label for='{$css_id}' class='help'>" . sprintf( '(%d&nbsp;&times;&nbsp;%d)', $downsize[1], $downsize[2] ) . '</label>';
1223          }
1224          $html .= '</div>';
1225  
1226          $out[] = $html;
1227      }
1228  
1229      return array(
1230          'label' => __( 'Size' ),
1231          'input' => 'html',
1232          'html'  => implode( "\n", $out ),
1233      );
1234  }
1235  
1236  /**
1237   * Retrieve HTML for the Link URL buttons with the default link type as specified.
1238   *
1239   * @since 2.7.0
1240   *
1241   * @param WP_Post $post
1242   * @param string  $url_type
1243   * @return string
1244   */
1245  function image_link_input_fields( $post, $url_type = '' ) {
1246  
1247      $file = wp_get_attachment_url( $post->ID );
1248      $link = get_attachment_link( $post->ID );
1249  
1250      if ( empty( $url_type ) ) {
1251          $url_type = get_user_setting( 'urlbutton', 'post' );
1252      }
1253  
1254      $url = '';
1255  
1256      if ( 'file' === $url_type ) {
1257          $url = $file;
1258      } elseif ( 'post' === $url_type ) {
1259          $url = $link;
1260      }
1261  
1262      return "
1263      <input type='text' class='text urlfield' name='attachments[$post->ID][url]' value='" . esc_attr( $url ) . "' /><br />
1264      <button type='button' class='button urlnone' data-link-url=''>" . __( 'None' ) . "</button>
1265      <button type='button' class='button urlfile' data-link-url='" . esc_attr( $file ) . "'>" . __( 'File URL' ) . "</button>
1266      <button type='button' class='button urlpost' data-link-url='" . esc_attr( $link ) . "'>" . __( 'Attachment Post URL' ) . '</button>
1267  ';
1268  }
1269  
1270  /**
1271   * Output a textarea element for inputting an attachment caption.
1272   *
1273   * @since 3.4.0
1274   *
1275   * @param WP_Post $edit_post Attachment WP_Post object.
1276   * @return string HTML markup for the textarea element.
1277   */
1278  function wp_caption_input_textarea( $edit_post ) {
1279      // Post data is already escaped.
1280      $name = "attachments[{$edit_post->ID}][post_excerpt]";
1281  
1282      return '<textarea name="' . $name . '" id="' . $name . '">' . $edit_post->post_excerpt . '</textarea>';
1283  }
1284  
1285  /**
1286   * Retrieves the image attachment fields to edit form fields.
1287   *
1288   * @since 2.5.0
1289   *
1290   * @param array  $form_fields
1291   * @param object $post
1292   * @return array
1293   */
1294  function image_attachment_fields_to_edit( $form_fields, $post ) {
1295      return $form_fields;
1296  }
1297  
1298  /**
1299   * Retrieves the single non-image attachment fields to edit form fields.
1300   *
1301   * @since 2.5.0
1302   *
1303   * @param array   $form_fields An array of attachment form fields.
1304   * @param WP_Post $post        The WP_Post attachment object.
1305   * @return array Filtered attachment form fields.
1306   */
1307  function media_single_attachment_fields_to_edit( $form_fields, $post ) {
1308      unset( $form_fields['url'], $form_fields['align'], $form_fields['image-size'] );
1309      return $form_fields;
1310  }
1311  
1312  /**
1313   * Retrieves the post non-image attachment fields to edit form fields.
1314   *
1315   * @since 2.8.0
1316   *
1317   * @param array   $form_fields An array of attachment form fields.
1318   * @param WP_Post $post        The WP_Post attachment object.
1319   * @return array Filtered attachment form fields.
1320   */
1321  function media_post_single_attachment_fields_to_edit( $form_fields, $post ) {
1322      unset( $form_fields['image_url'] );
1323      return $form_fields;
1324  }
1325  
1326  /**
1327   * Filters input from media_upload_form_handler() and assigns a default
1328   * post_title from the file name if none supplied.
1329   *
1330   * Illustrates the use of the {@see 'attachment_fields_to_save'} filter
1331   * which can be used to add default values to any field before saving to DB.
1332   *
1333   * @since 2.5.0
1334   *
1335   * @param array $post       The WP_Post attachment object converted to an array.
1336   * @param array $attachment An array of attachment metadata.
1337   * @return array Filtered attachment post object.
1338   */
1339  function image_attachment_fields_to_save( $post, $attachment ) {
1340      if ( 'image' === substr( $post['post_mime_type'], 0, 5 ) ) {
1341          if ( strlen( trim( $post['post_title'] ) ) == 0 ) {
1342              $attachment_url                           = ( isset( $post['attachment_url'] ) ) ? $post['attachment_url'] : $post['guid'];
1343              $post['post_title']                       = preg_replace( '/\.\w+$/', '', wp_basename( $attachment_url ) );
1344              $post['errors']['post_title']['errors'][] = __( 'Empty Title filled from filename.' );
1345          }
1346      }
1347  
1348      return $post;
1349  }
1350  
1351  /**
1352   * Retrieves the media element HTML to send to the editor.
1353   *
1354   * @since 2.5.0
1355   *
1356   * @param string  $html
1357   * @param int     $attachment_id
1358   * @param array   $attachment
1359   * @return string
1360   */
1361  function image_media_send_to_editor( $html, $attachment_id, $attachment ) {
1362      $post = get_post( $attachment_id );
1363  
1364      if ( 'image' === substr( $post->post_mime_type, 0, 5 ) ) {
1365          $url   = $attachment['url'];
1366          $align = ! empty( $attachment['align'] ) ? $attachment['align'] : 'none';
1367          $size  = ! empty( $attachment['image-size'] ) ? $attachment['image-size'] : 'medium';
1368          $alt   = ! empty( $attachment['image_alt'] ) ? $attachment['image_alt'] : '';
1369          $rel   = ( strpos( $url, 'attachment_id' ) || get_attachment_link( $attachment_id ) === $url );
1370  
1371          return get_image_send_to_editor( $attachment_id, $attachment['post_excerpt'], $attachment['post_title'], $align, $url, $rel, $size, $alt );
1372      }
1373  
1374      return $html;
1375  }
1376  
1377  /**
1378   * Retrieves the attachment fields to edit form fields.
1379   *
1380   * @since 2.5.0
1381   *
1382   * @param WP_Post $post
1383   * @param array   $errors
1384   * @return array
1385   */
1386  function get_attachment_fields_to_edit( $post, $errors = null ) {
1387      if ( is_int( $post ) ) {
1388          $post = get_post( $post );
1389      }
1390  
1391      if ( is_array( $post ) ) {
1392          $post = new WP_Post( (object) $post );
1393      }
1394  
1395      $image_url = wp_get_attachment_url( $post->ID );
1396  
1397      $edit_post = sanitize_post( $post, 'edit' );
1398  
1399      $form_fields = array(
1400          'post_title'   => array(
1401              'label' => __( 'Title' ),
1402              'value' => $edit_post->post_title,
1403          ),
1404          'image_alt'    => array(),
1405          'post_excerpt' => array(
1406              'label' => __( 'Caption' ),
1407              'input' => 'html',
1408              'html'  => wp_caption_input_textarea( $edit_post ),
1409          ),
1410          'post_content' => array(
1411              'label' => __( 'Description' ),
1412              'value' => $edit_post->post_content,
1413              'input' => 'textarea',
1414          ),
1415          'url'          => array(
1416              'label' => __( 'Link URL' ),
1417              'input' => 'html',
1418              'html'  => image_link_input_fields( $post, get_option( 'image_default_link_type' ) ),
1419              'helps' => __( 'Enter a link URL or click above for presets.' ),
1420          ),
1421          'menu_order'   => array(
1422              'label' => __( 'Order' ),
1423              'value' => $edit_post->menu_order,
1424          ),
1425          'image_url'    => array(
1426              'label' => __( 'File URL' ),
1427              'input' => 'html',
1428              'html'  => "<input type='text' class='text urlfield' readonly='readonly' name='attachments[$post->ID][url]' value='" . esc_attr( $image_url ) . "' /><br />",
1429              'value' => wp_get_attachment_url( $post->ID ),
1430              'helps' => __( 'Location of the uploaded file.' ),
1431          ),
1432      );
1433  
1434      foreach ( get_attachment_taxonomies( $post ) as $taxonomy ) {
1435          $t = (array) get_taxonomy( $taxonomy );
1436  
1437          if ( ! $t['public'] || ! $t['show_ui'] ) {
1438              continue;
1439          }
1440  
1441          if ( empty( $t['label'] ) ) {
1442              $t['label'] = $taxonomy;
1443          }
1444  
1445          if ( empty( $t['args'] ) ) {
1446              $t['args'] = array();
1447          }
1448  
1449          $terms = get_object_term_cache( $post->ID, $taxonomy );
1450  
1451          if ( false === $terms ) {
1452              $terms = wp_get_object_terms( $post->ID, $taxonomy, $t['args'] );
1453          }
1454  
1455          $values = array();
1456  
1457          foreach ( $terms as $term ) {
1458              $values[] = $term->slug;
1459          }
1460  
1461          $t['value'] = implode( ', ', $values );
1462  
1463          $form_fields[ $taxonomy ] = $t;
1464      }
1465  
1466      /*
1467       * Merge default fields with their errors, so any key passed with the error
1468       * (e.g. 'error', 'helps', 'value') will replace the default.
1469       * The recursive merge is easily traversed with array casting:
1470       * foreach ( (array) $things as $thing )
1471       */
1472      $form_fields = array_merge_recursive( $form_fields, (array) $errors );
1473  
1474      // This was formerly in image_attachment_fields_to_edit().
1475      if ( 'image' === substr( $post->post_mime_type, 0, 5 ) ) {
1476          $alt = get_post_meta( $post->ID, '_wp_attachment_image_alt', true );
1477  
1478          if ( empty( $alt ) ) {
1479              $alt = '';
1480          }
1481  
1482          $form_fields['post_title']['required'] = true;
1483  
1484          $form_fields['image_alt'] = array(
1485              'value' => $alt,
1486              'label' => __( 'Alternative Text' ),
1487              'helps' => __( 'Alt text for the image, e.g. &#8220;The Mona Lisa&#8221;' ),
1488          );
1489  
1490          $form_fields['align'] = array(
1491              'label' => __( 'Alignment' ),
1492              'input' => 'html',
1493              'html'  => image_align_input_fields( $post, get_option( 'image_default_align' ) ),
1494          );
1495  
1496          $form_fields['image-size'] = image_size_input_fields( $post, get_option( 'image_default_size', 'medium' ) );
1497  
1498      } else {
1499          unset( $form_fields['image_alt'] );
1500      }
1501  
1502      /**
1503       * Filters the attachment fields to edit.
1504       *
1505       * @since 2.5.0
1506       *
1507       * @param array   $form_fields An array of attachment form fields.
1508       * @param WP_Post $post        The WP_Post attachment object.
1509       */
1510      $form_fields = apply_filters( 'attachment_fields_to_edit', $form_fields, $post );
1511  
1512      return $form_fields;
1513  }
1514  
1515  /**
1516   * Retrieve HTML for media items of post gallery.
1517   *
1518   * The HTML markup retrieved will be created for the progress of SWF Upload
1519   * component. Will also create link for showing and hiding the form to modify
1520   * the image attachment.
1521   *
1522   * @since 2.5.0
1523   *
1524   * @global WP_Query $wp_the_query WordPress Query object.
1525   *
1526   * @param int   $post_id Optional. Post ID.
1527   * @param array $errors  Errors for attachment, if any.
1528   * @return string
1529   */
1530  function get_media_items( $post_id, $errors ) {
1531      $attachments = array();
1532  
1533      if ( $post_id ) {
1534          $post = get_post( $post_id );
1535  
1536          if ( $post && 'attachment' === $post->post_type ) {
1537              $attachments = array( $post->ID => $post );
1538          } else {
1539              $attachments = get_children(
1540                  array(
1541                      'post_parent' => $post_id,
1542                      'post_type'   => 'attachment',
1543                      'orderby'     => 'menu_order ASC, ID',
1544                      'order'       => 'DESC',
1545                  )
1546              );
1547          }
1548      } else {
1549          if ( is_array( $GLOBALS['wp_the_query']->posts ) ) {
1550              foreach ( $GLOBALS['wp_the_query']->posts as $attachment ) {
1551                  $attachments[ $attachment->ID ] = $attachment;
1552              }
1553          }
1554      }
1555  
1556      $output = '';
1557      foreach ( (array) $attachments as $id => $attachment ) {
1558          if ( 'trash' === $attachment->post_status ) {
1559              continue;
1560          }
1561  
1562          $item = get_media_item( $id, array( 'errors' => isset( $errors[ $id ] ) ? $errors[ $id ] : null ) );
1563  
1564          if ( $item ) {
1565              $output .= "\n<div id='media-item-$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>";
1566          }
1567      }
1568  
1569      return $output;
1570  }
1571  
1572  /**
1573   * Retrieve HTML form for modifying the image attachment.
1574   *
1575   * @since 2.5.0
1576   *
1577   * @global string $redir_tab
1578   *
1579   * @param int          $attachment_id Attachment ID for modification.
1580   * @param string|array $args          Optional. Override defaults.
1581   * @return string HTML form for attachment.
1582   */
1583  function get_media_item( $attachment_id, $args = null ) {
1584      global $redir_tab;
1585  
1586      $thumb_url     = false;
1587      $attachment_id = (int) $attachment_id;
1588  
1589      if ( $attachment_id ) {
1590          $thumb_url = wp_get_attachment_image_src( $attachment_id, 'thumbnail', true );
1591  
1592          if ( $thumb_url ) {
1593              $thumb_url = $thumb_url[0];
1594          }
1595      }
1596  
1597      $post            = get_post( $attachment_id );
1598      $current_post_id = ! empty( $_GET['post_id'] ) ? (int) $_GET['post_id'] : 0;
1599  
1600      $default_args = array(
1601          'errors'     => null,
1602          'send'       => $current_post_id ? post_type_supports( get_post_type( $current_post_id ), 'editor' ) : true,
1603          'delete'     => true,
1604          'toggle'     => true,
1605          'show_title' => true,
1606      );
1607  
1608      $parsed_args = wp_parse_args( $args, $default_args );
1609  
1610      /**
1611       * Filters the arguments used to retrieve an image for the edit image form.
1612       *
1613       * @since 3.1.0
1614       *
1615       * @see get_media_item
1616       *
1617       * @param array $parsed_args An array of arguments.
1618       */
1619      $parsed_args = apply_filters( 'get_media_item_args', $parsed_args );
1620  
1621      $toggle_on  = __( 'Show' );
1622      $toggle_off = __( 'Hide' );
1623  
1624      $file     = get_attached_file( $post->ID );
1625      $filename = esc_html( wp_basename( $file ) );
1626      $title    = esc_attr( $post->post_title );
1627  
1628      $post_mime_types = get_post_mime_types();
1629      $keys            = array_keys( wp_match_mime_types( array_keys( $post_mime_types ), $post->post_mime_type ) );
1630      $type            = reset( $keys );
1631      $type_html       = "<input type='hidden' id='type-of-$attachment_id' value='" . esc_attr( $type ) . "' />";
1632  
1633      $form_fields = get_attachment_fields_to_edit( $post, $parsed_args['errors'] );
1634  
1635      if ( $parsed_args['toggle'] ) {
1636          $class        = empty( $parsed_args['errors'] ) ? 'startclosed' : 'startopen';
1637          $toggle_links = "
1638          <a class='toggle describe-toggle-on' href='#'>$toggle_on</a>
1639          <a class='toggle describe-toggle-off' href='#'>$toggle_off</a>";
1640      } else {
1641          $class        = '';
1642          $toggle_links = '';
1643      }
1644  
1645      $display_title = ( ! empty( $title ) ) ? $title : $filename; // $title shouldn't ever be empty, but just in case.
1646      $display_title = $parsed_args['show_title'] ? "<div class='filename new'><span class='title'>" . wp_html_excerpt( $display_title, 60, '&hellip;' ) . '</span></div>' : '';
1647  
1648      $gallery = ( ( isset( $_REQUEST['tab'] ) && 'gallery' === $_REQUEST['tab'] ) || ( isset( $redir_tab ) && 'gallery' === $redir_tab ) );
1649      $order   = '';
1650  
1651      foreach ( $form_fields as $key => $val ) {
1652          if ( 'menu_order' === $key ) {
1653              if ( $gallery ) {
1654                  $order = "<div class='menu_order'> <input class='menu_order_input' type='text' id='attachments[$attachment_id][menu_order]' name='attachments[$attachment_id][menu_order]' value='" . esc_attr( $val['value'] ) . "' /></div>";
1655              } else {
1656                  $order = "<input type='hidden' name='attachments[$attachment_id][menu_order]' value='" . esc_attr( $val['value'] ) . "' />";
1657              }
1658  
1659              unset( $form_fields['menu_order'] );
1660              break;
1661          }
1662      }
1663  
1664      $media_dims = '';
1665      $meta       = wp_get_attachment_metadata( $post->ID );
1666  
1667      if ( isset( $meta['width'], $meta['height'] ) ) {
1668          $media_dims .= "<span id='media-dims-$post->ID'>{$meta['width']}&nbsp;&times;&nbsp;{$meta['height']}</span> ";
1669      }
1670  
1671      /**
1672       * Filters the media metadata.
1673       *
1674       * @since 2.5.0
1675       *
1676       * @param string  $media_dims The HTML markup containing the media dimensions.
1677       * @param WP_Post $post       The WP_Post attachment object.
1678       */
1679      $media_dims = apply_filters( 'media_meta', $media_dims, $post );
1680  
1681      $image_edit_button = '';
1682  
1683      if ( wp_attachment_is_image( $post->ID ) && wp_image_editor_supports( array( 'mime_type' => $post->post_mime_type ) ) ) {
1684          $nonce             = wp_create_nonce( "image_editor-$post->ID" );
1685          $image_edit_button = "<input type='button' id='imgedit-open-btn-$post->ID' onclick='imageEdit.open( $post->ID, \"$nonce\" )' class='button' value='" . esc_attr__( 'Edit Image' ) . "' /> <span class='spinner'></span>";
1686      }
1687  
1688      $attachment_url = get_permalink( $attachment_id );
1689  
1690      $item = "
1691          $type_html
1692          $toggle_links
1693          $order
1694          $display_title
1695          <table class='slidetoggle describe $class'>
1696              <thead class='media-item-info' id='media-head-$post->ID'>
1697              <tr>
1698              <td class='A1B1' id='thumbnail-head-$post->ID'>
1699              <p><a href='$attachment_url' target='_blank'><img class='thumbnail' src='$thumb_url' alt='' /></a></p>
1700              <p>$image_edit_button</p>
1701              </td>
1702              <td>
1703              <p><strong>" . __( 'File name:' ) . "</strong> $filename</p>
1704              <p><strong>" . __( 'File type:' ) . "</strong> $post->post_mime_type</p>
1705              <p><strong>" . __( 'Upload date:' ) . '</strong> ' . mysql2date( __( 'F j, Y' ), $post->post_date ) . '</p>';
1706  
1707      if ( ! empty( $media_dims ) ) {
1708          $item .= '<p><strong>' . __( 'Dimensions:' ) . "</strong> $media_dims</p>\n";
1709      }
1710  
1711      $item .= "</td></tr>\n";
1712  
1713      $item .= "
1714          </thead>
1715          <tbody>
1716          <tr><td colspan='2' class='imgedit-response' id='imgedit-response-$post->ID'></td></tr>\n
1717          <tr><td style='display:none' colspan='2' class='image-editor' id='image-editor-$post->ID'></td></tr>\n
1718          <tr><td colspan='2'><p class='media-types media-types-required-info'>" .
1719              /* translators: %s: Asterisk symbol (*). */
1720              sprintf( __( 'Required fields are marked %s' ), '<span class="required">*</span>' ) .
1721          "</p></td></tr>\n";
1722  
1723      $defaults = array(
1724          'input'      => 'text',
1725          'required'   => false,
1726          'value'      => '',
1727          'extra_rows' => array(),
1728      );
1729  
1730      if ( $parsed_args['send'] ) {
1731          $parsed_args['send'] = get_submit_button( __( 'Insert into Post' ), '', "send[$attachment_id]", false );
1732      }
1733  
1734      $delete = empty( $parsed_args['delete'] ) ? '' : $parsed_args['delete'];
1735      if ( $delete && current_user_can( 'delete_post', $attachment_id ) ) {
1736          if ( ! EMPTY_TRASH_DAYS ) {
1737              $delete = "<a href='" . wp_nonce_url( "post.php?action=delete&amp;post=$attachment_id", 'delete-post_' . $attachment_id ) . "' id='del[$attachment_id]' class='delete-permanently'>" . __( 'Delete Permanently' ) . '</a>';
1738          } elseif ( ! MEDIA_TRASH ) {
1739              $delete = "<a href='#' class='del-link' onclick=\"document.getElementById('del_attachment_$attachment_id').style.display='block';return false;\">" . __( 'Delete' ) . "</a>
1740                  <div id='del_attachment_$attachment_id' class='del-attachment' style='display:none;'>" .
1741                  /* translators: %s: File name. */
1742                  '<p>' . sprintf( __( 'You are about to delete %s.' ), '<strong>' . $filename . '</strong>' ) . "</p>
1743                  <a href='" . wp_nonce_url( "post.php?action=delete&amp;post=$attachment_id", 'delete-post_' . $attachment_id ) . "' id='del[$attachment_id]' class='button'>" . __( 'Continue' ) . "</a>
1744                  <a href='#' class='button' onclick=\"this.parentNode.style.display='none';return false;\">" . __( 'Cancel' ) . '</a>
1745                  </div>';
1746          } else {
1747              $delete = "<a href='" . wp_nonce_url( "post.php?action=trash&amp;post=$attachment_id", 'trash-post_' . $attachment_id ) . "' id='del[$attachment_id]' class='delete'>" . __( 'Move to Trash' ) . "</a>
1748              <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>';
1749          }
1750      } else {
1751          $delete = '';
1752      }
1753  
1754      $thumbnail       = '';
1755      $calling_post_id = 0;
1756  
1757      if ( isset( $_GET['post_id'] ) ) {
1758          $calling_post_id = absint( $_GET['post_id'] );
1759      } elseif ( isset( $_POST ) && count( $_POST ) ) {// Like for async-upload where $_GET['post_id'] isn't set.
1760          $calling_post_id = $post->post_parent;
1761      }
1762  
1763      if ( 'image' === $type && $calling_post_id
1764          && current_theme_supports( 'post-thumbnails', get_post_type( $calling_post_id ) )
1765          && post_type_supports( get_post_type( $calling_post_id ), 'thumbnail' )
1766          && get_post_thumbnail_id( $calling_post_id ) != $attachment_id
1767      ) {
1768  
1769          $calling_post             = get_post( $calling_post_id );
1770          $calling_post_type_object = get_post_type_object( $calling_post->post_type );
1771  
1772          $ajax_nonce = wp_create_nonce( "set_post_thumbnail-$calling_post_id" );
1773          $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>';
1774      }
1775  
1776      if ( ( $parsed_args['send'] || $thumbnail || $delete ) && ! isset( $form_fields['buttons'] ) ) {
1777          $form_fields['buttons'] = array( 'tr' => "\t\t<tr class='submit'><td></td><td class='savesend'>" . $parsed_args['send'] . " $thumbnail $delete</td></tr>\n" );
1778      }
1779  
1780      $hidden_fields = array();
1781  
1782      foreach ( $form_fields as $id => $field ) {
1783          if ( '_' === $id[0] ) {
1784              continue;
1785          }
1786  
1787          if ( ! empty( $field['tr'] ) ) {
1788              $item .= $field['tr'];
1789              continue;
1790          }
1791  
1792          $field = array_merge( $defaults, $field );
1793          $name  = "attachments[$attachment_id][$id]";
1794  
1795          if ( 'hidden' === $field['input'] ) {
1796              $hidden_fields[ $name ] = $field['value'];
1797              continue;
1798          }
1799  
1800          $required      = $field['required'] ? '<span class="required">*</span>' : '';
1801          $required_attr = $field['required'] ? ' required' : '';
1802          $class         = $id;
1803          $class        .= $field['required'] ? ' form-required' : '';
1804  
1805          $item .= "\t\t<tr class='$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'>";
1806  
1807          if ( ! empty( $field[ $field['input'] ] ) ) {
1808              $item .= $field[ $field['input'] ];
1809          } elseif ( 'textarea' === $field['input'] ) {
1810              if ( 'post_content' === $id && user_can_richedit() ) {
1811                  // Sanitize_post() skips the post_content when user_can_richedit.
1812                  $field['value'] = htmlspecialchars( $field['value'], ENT_QUOTES );
1813              }
1814              // Post_excerpt is already escaped by sanitize_post() in get_attachment_fields_to_edit().
1815              $item .= "<textarea id='$name' name='$name'{$required_attr}>" . $field['value'] . '</textarea>';
1816          } else {
1817              $item .= "<input type='text' class='text' id='$name' name='$name' value='" . esc_attr( $field['value'] ) . "'{$required_attr} />";
1818          }
1819  
1820          if ( ! empty( $field['helps'] ) ) {
1821              $item .= "<p class='help'>" . implode( "</p>\n<p class='help'>", array_unique( (array) $field['helps'] ) ) . '</p>';
1822          }
1823          $item .= "</td>\n\t\t</tr>\n";
1824  
1825          $extra_rows = array();
1826  
1827          if ( ! empty( $field['errors'] ) ) {
1828              foreach ( array_unique( (array) $field['errors'] ) as $error ) {
1829                  $extra_rows['error'][] = $error;
1830              }
1831          }
1832  
1833          if ( ! empty( $field['extra_rows'] ) ) {
1834              foreach ( $field['extra_rows'] as $class => $rows ) {
1835                  foreach ( (array) $rows as $html ) {
1836                      $extra_rows[ $class ][] = $html;
1837                  }
1838              }
1839          }
1840  
1841          foreach ( $extra_rows as $class => $rows ) {
1842              foreach ( $rows as $html ) {
1843                  $item .= "\t\t<tr><td></td><td class='$class'>$html</td></tr>\n";
1844              }
1845          }
1846      }
1847  
1848      if ( ! empty( $form_fields['_final'] ) ) {
1849          $item .= "\t\t<tr class='final'><td colspan='2'>{$form_fields['_final']}</td></tr>\n";
1850      }
1851  
1852      $item .= "\t</tbody>\n";
1853      $item .= "\t</table>\n";
1854  
1855      foreach ( $hidden_fields as $name => $value ) {
1856          $item .= "\t<input type='hidden' name='$name' id='$name' value='" . esc_attr( $value ) . "' />\n";
1857      }
1858  
1859      if ( $post->post_parent < 1 && isset( $_REQUEST['post_id'] ) ) {
1860          $parent      = (int) $_REQUEST['post_id'];
1861          $parent_name = "attachments[$attachment_id][post_parent]";
1862          $item       .= "\t<input type='hidden' name='$parent_name' id='$parent_name' value='$parent' />\n";
1863      }
1864  
1865      return $item;
1866  }
1867  
1868  /**
1869   * @since 3.5.0
1870   *
1871   * @param int   $attachment_id
1872   * @param array $args
1873   * @return array
1874   */
1875  function get_compat_media_markup( $attachment_id, $args = null ) {
1876      $post = get_post( $attachment_id );
1877  
1878      $default_args = array(
1879          'errors'   => null,
1880          'in_modal' => false,
1881      );
1882  
1883      $user_can_edit = current_user_can( 'edit_post', $attachment_id );
1884  
1885      $args = wp_parse_args( $args, $default_args );
1886  
1887      /** This filter is documented in wp-admin/includes/media.php */
1888      $args = apply_filters( 'get_media_item_args', $args );
1889  
1890      $form_fields = array();
1891  
1892      if ( $args['in_modal'] ) {
1893          foreach ( get_attachment_taxonomies( $post ) as $taxonomy ) {
1894              $t = (array) get_taxonomy( $taxonomy );
1895  
1896              if ( ! $t['public'] || ! $t['show_ui'] ) {
1897                  continue;
1898              }
1899  
1900              if ( empty( $t['label'] ) ) {
1901                  $t['label'] = $taxonomy;
1902              }
1903  
1904              if ( empty( $t['args'] ) ) {
1905                  $t['args'] = array();
1906              }
1907  
1908              $terms = get_object_term_cache( $post->ID, $taxonomy );
1909  
1910              if ( false === $terms ) {
1911                  $terms = wp_get_object_terms( $post->ID, $taxonomy, $t['args'] );
1912              }
1913  
1914              $values = array();
1915  
1916              foreach ( $terms as $term ) {
1917                  $values[] = $term->slug;
1918              }
1919  
1920              $t['value']    = implode( ', ', $values );
1921              $t['taxonomy'] = true;
1922  
1923              $form_fields[ $taxonomy ] = $t;
1924          }
1925      }
1926  
1927      /*
1928       * Merge default fields with their errors, so any key passed with the error
1929       * (e.g. 'error', 'helps', 'value') will replace the default.
1930       * The recursive merge is easily traversed with array casting:
1931       * foreach ( (array) $things as $thing )
1932       */
1933      $form_fields = array_merge_recursive( $form_fields, (array) $args['errors'] );
1934  
1935      /** This filter is documented in wp-admin/includes/media.php */
1936      $form_fields = apply_filters( 'attachment_fields_to_edit', $form_fields, $post );
1937  
1938      unset(
1939          $form_fields['image-size'],
1940          $form_fields['align'],
1941          $form_fields['image_alt'],
1942          $form_fields['post_title'],
1943          $form_fields['post_excerpt'],
1944          $form_fields['post_content'],
1945          $form_fields['url'],
1946          $form_fields['menu_order'],
1947          $form_fields['image_url']
1948      );
1949  
1950      /** This filter is documented in wp-admin/includes/media.php */
1951      $media_meta = apply_filters( 'media_meta', '', $post );
1952  
1953      $defaults = array(
1954          'input'         => 'text',
1955          'required'      => false,
1956          'value'         => '',
1957          'extra_rows'    => array(),
1958          'show_in_edit'  => true,
1959          'show_in_modal' => true,
1960      );
1961  
1962      $hidden_fields = array();
1963  
1964      $item = '';
1965  
1966      foreach ( $form_fields as $id => $field ) {
1967          if ( '_' === $id[0] ) {
1968              continue;
1969          }
1970  
1971          $name    = "attachments[$attachment_id][$id]";
1972          $id_attr = "attachments-$attachment_id-$id";
1973  
1974          if ( ! empty( $field['tr'] ) ) {
1975              $item .= $field['tr'];
1976              continue;
1977          }
1978  
1979          $field = array_merge( $defaults, $field );
1980  
1981          if ( ( ! $field['show_in_edit'] && ! $args['in_modal'] ) || ( ! $field['show_in_modal'] && $args['in_modal'] ) ) {
1982              continue;
1983          }
1984  
1985          if ( 'hidden' === $field['input'] ) {
1986              $hidden_fields[ $name ] = $field['value'];
1987              continue;
1988          }
1989  
1990          $readonly      = ! $user_can_edit && ! empty( $field['taxonomy'] ) ? " readonly='readonly' " : '';
1991          $required      = $field['required'] ? '<span class="required">*</span>' : '';
1992          $required_attr = $field['required'] ? ' required' : '';
1993          $class         = 'compat-field-' . $id;
1994          $class        .= $field['required'] ? ' form-required' : '';
1995  
1996          $item .= "\t\t<tr class='$class'>";
1997          $item .= "\t\t\t<th scope='row' class='label'><label for='$id_attr'><span class='alignleft'>{$field['label']}</span>$required<br class='clear' /></label>";
1998          $item .= "</th>\n\t\t\t<td class='field'>";
1999  
2000          if ( ! empty( $field[ $field['input'] ] ) ) {
2001              $item .= $field[ $field['input'] ];
2002          } elseif ( 'textarea' === $field['input'] ) {
2003              if ( 'post_content' === $id && user_can_richedit() ) {
2004                  // sanitize_post() skips the post_content when user_can_richedit.
2005                  $field['value'] = htmlspecialchars( $field['value'], ENT_QUOTES );
2006              }
2007              $item .= "<textarea id='$id_attr' name='$name'{$required_attr}>" . $field['value'] . '</textarea>';
2008          } else {
2009              $item .= "<input type='text' class='text' id='$id_attr' name='$name' value='" . esc_attr( $field['value'] ) . "' $readonly{$required_attr} />";
2010          }
2011  
2012          if ( ! empty( $field['helps'] ) ) {
2013              $item .= "<p class='help'>" . implode( "</p>\n<p class='help'>", array_unique( (array) $field['helps'] ) ) . '</p>';
2014          }
2015  
2016          $item .= "</td>\n\t\t</tr>\n";
2017  
2018          $extra_rows = array();
2019  
2020          if ( ! empty( $field['errors'] ) ) {
2021              foreach ( array_unique( (array) $field['errors'] ) as $error ) {
2022                  $extra_rows['error'][] = $error;
2023              }
2024          }
2025  
2026          if ( ! empty( $field['extra_rows'] ) ) {
2027              foreach ( $field['extra_rows'] as $class => $rows ) {
2028                  foreach ( (array) $rows as $html ) {
2029                      $extra_rows[ $class ][] = $html;
2030                  }
2031              }
2032          }
2033  
2034          foreach ( $extra_rows as $class => $rows ) {
2035              foreach ( $rows as $html ) {
2036                  $item .= "\t\t<tr><td></td><td class='$class'>$html</td></tr>\n";
2037              }
2038          }
2039      }
2040  
2041      if ( ! empty( $form_fields['_final'] ) ) {
2042          $item .= "\t\t<tr class='final'><td colspan='2'>{$form_fields['_final']}</td></tr>\n";
2043      }
2044  
2045      if ( $item ) {
2046          $item = '<p class="media-types media-types-required-info">' .
2047              /* translators: %s: Asterisk symbol (*). */
2048              sprintf( __( 'Required fields are marked %s' ), '<span class="required">*</span>' ) .
2049              '</p>' .
2050              '<table class="compat-attachment-fields">' . $item . '</table>';
2051      }
2052  
2053      foreach ( $hidden_fields as $hidden_field => $value ) {
2054          $item .= '<input type="hidden" name="' . esc_attr( $hidden_field ) . '" value="' . esc_attr( $value ) . '" />' . "\n";
2055      }
2056  
2057      if ( $item ) {
2058          $item = '<input type="hidden" name="attachments[' . $attachment_id . '][menu_order]" value="' . esc_attr( $post->menu_order ) . '" />' . $item;
2059      }
2060  
2061      return array(
2062          'item' => $item,
2063          'meta' => $media_meta,
2064      );
2065  }
2066  
2067  /**
2068   * Outputs the legacy media upload header.
2069   *
2070   * @since 2.5.0
2071   */
2072  function media_upload_header() {
2073      $post_id = isset( $_REQUEST['post_id'] ) ? (int) $_REQUEST['post_id'] : 0;
2074  
2075      echo '<script type="text/javascript">post_id = ' . $post_id . ';</script>';
2076  
2077      if ( empty( $_GET['chromeless'] ) ) {
2078          echo '<div id="media-upload-header">';
2079          the_media_upload_tabs();
2080          echo '</div>';
2081      }
2082  }
2083  
2084  /**
2085   * Outputs the legacy media upload form.
2086   *
2087   * @since 2.5.0
2088   *
2089   * @global string $type
2090   * @global string $tab
2091   * @global bool   $is_IE
2092   * @global bool   $is_opera
2093   *
2094   * @param array $errors
2095   */
2096  function media_upload_form( $errors = null ) {
2097      global $type, $tab, $is_IE, $is_opera;
2098  
2099      if ( ! _device_can_upload() ) {
2100          echo '<p>' . sprintf(
2101              /* translators: %s: https://apps.wordpress.org/ */
2102              __( '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.' ),
2103              'https://apps.wordpress.org/'
2104          ) . '</p>';
2105          return;
2106      }
2107  
2108      $upload_action_url = admin_url( 'async-upload.php' );
2109      $post_id           = isset( $_REQUEST['post_id'] ) ? (int) $_REQUEST['post_id'] : 0;
2110      $_type             = isset( $type ) ? $type : '';
2111      $_tab              = isset( $tab ) ? $tab : '';
2112  
2113      $max_upload_size = wp_max_upload_size();
2114      if ( ! $max_upload_size ) {
2115          $max_upload_size = 0;
2116      }
2117  
2118      ?>
2119      <div id="media-upload-notice">
2120      <?php
2121  
2122      if ( isset( $errors['upload_notice'] ) ) {
2123          echo $errors['upload_notice'];
2124      }
2125  
2126      ?>
2127      </div>
2128      <div id="media-upload-error">
2129      <?php
2130  
2131      if ( isset( $errors['upload_error'] ) && is_wp_error( $errors['upload_error'] ) ) {
2132          echo $errors['upload_error']->get_error_message();
2133      }
2134  
2135      ?>
2136      </div>
2137      <?php
2138  
2139      if ( is_multisite() && ! is_upload_space_available() ) {
2140          /**
2141           * Fires when an upload will exceed the defined upload space quota for a network site.
2142           *
2143           * @since 3.5.0
2144           */
2145          do_action( 'upload_ui_over_quota' );
2146          return;
2147      }
2148  
2149      /**
2150       * Fires just before the legacy (pre-3.5.0) upload interface is loaded.
2151       *
2152       * @since 2.6.0
2153       */
2154      do_action( 'pre-upload-ui' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
2155  
2156      $post_params = array(
2157          'post_id'  => $post_id,
2158          '_wpnonce' => wp_create_nonce( 'media-form' ),
2159          'type'     => $_type,
2160          'tab'      => $_tab,
2161          'short'    => '1',
2162      );
2163  
2164      /**
2165       * Filters the media upload post parameters.
2166       *
2167       * @since 3.1.0 As 'swfupload_post_params'
2168       * @since 3.3.0
2169       *
2170       * @param array $post_params An array of media upload parameters used by Plupload.
2171       */
2172      $post_params = apply_filters( 'upload_post_params', $post_params );
2173  
2174      /*
2175      * Since 4.9 the `runtimes` setting is hardcoded in our version of Plupload to `html5,html4`,
2176      * and the `flash_swf_url` and `silverlight_xap_url` are not used.
2177      */
2178      $plupload_init = array(
2179          'browse_button'    => 'plupload-browse-button',
2180          'container'        => 'plupload-upload-ui',
2181          'drop_element'     => 'drag-drop-area',
2182          'file_data_name'   => 'async-upload',
2183          'url'              => $upload_action_url,
2184          'filters'          => array( 'max_file_size' => $max_upload_size . 'b' ),
2185          'multipart_params' => $post_params,
2186      );
2187  
2188      /*
2189       * Currently only iOS Safari supports multiple files uploading,
2190       * but iOS 7.x has a bug that prevents uploading of videos when enabled.
2191       * See #29602.
2192       */
2193      if (
2194          wp_is_mobile() &&
2195          strpos( $_SERVER['HTTP_USER_AGENT'], 'OS 7_' ) !== false &&
2196          strpos( $_SERVER['HTTP_USER_AGENT'], 'like Mac OS X' ) !== false
2197      ) {
2198          $plupload_init['multi_selection'] = false;
2199      }
2200  
2201      /**
2202       * Filters the default Plupload settings.
2203       *
2204       * @since 3.3.0
2205       *
2206       * @param array $plupload_init An array of default settings used by Plupload.
2207       */
2208      $plupload_init = apply_filters( 'plupload_init', $plupload_init );
2209  
2210      ?>
2211      <script type="text/javascript">
2212      <?php
2213      // Verify size is an int. If not return default value.
2214      $large_size_h = absint( get_option( 'large_size_h' ) );
2215  
2216      if ( ! $large_size_h ) {
2217          $large_size_h = 1024;
2218      }
2219  
2220      $large_size_w = absint( get_option( 'large_size_w' ) );
2221  
2222      if ( ! $large_size_w ) {
2223          $large_size_w = 1024;
2224      }
2225  
2226      ?>
2227      var resize_height = <?php echo $large_size_h; ?>, resize_width = <?php echo $large_size_w; ?>,
2228      wpUploaderInit = <?php echo wp_json_encode( $plupload_init ); ?>;
2229      </script>
2230  
2231      <div id="plupload-upload-ui" class="hide-if-no-js">
2232      <?php
2233      /**
2234       * Fires before the upload interface loads.
2235       *
2236       * @since 2.6.0 As 'pre-flash-upload-ui'
2237       * @since 3.3.0
2238       */
2239      do_action( 'pre-plupload-upload-ui' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
2240  
2241      ?>
2242      <div id="drag-drop-area">
2243          <div class="drag-drop-inside">
2244          <p class="drag-drop-info"><?php _e( 'Drop files to upload' ); ?></p>
2245          <p><?php _ex( 'or', 'Uploader: Drop files here - or - Select Files' ); ?></p>
2246          <p class="drag-drop-buttons"><input id="plupload-browse-button" type="button" value="<?php esc_attr_e( 'Select Files' ); ?>" class="button" /></p>
2247          </div>
2248      </div>
2249      <?php
2250      /**
2251       * Fires after the upload interface loads.
2252       *
2253       * @since 2.6.0 As 'post-flash-upload-ui'
2254       * @since 3.3.0
2255       */
2256      do_action( 'post-plupload-upload-ui' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
2257      ?>
2258      </div>
2259  
2260      <div id="html-upload-ui" class="hide-if-js">
2261      <?php
2262      /**
2263       * Fires before the upload button in the media upload interface.
2264       *
2265       * @since 2.6.0
2266       */
2267      do_action( 'pre-html-upload-ui' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
2268  
2269      ?>
2270      <p id="async-upload-wrap">
2271          <label class="screen-reader-text" for="async-upload"><?php _e( 'Upload' ); ?></label>
2272          <input type="file" name="async-upload" id="async-upload" />
2273          <?php submit_button( __( 'Upload' ), 'primary', 'html-upload', false ); ?>
2274          <a href="#" onclick="try{top.tb_remove();}catch(e){}; return false;"><?php _e( 'Cancel' ); ?></a>
2275      </p>
2276      <div class="clear"></div>
2277      <?php
2278      /**
2279       * Fires after the upload button in the media upload interface.
2280       *
2281       * @since 2.6.0
2282       */
2283      do_action( 'post-html-upload-ui' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
2284  
2285      ?>
2286      </div>
2287  
2288  <p class="max-upload-size">
2289      <?php
2290      /* translators: %s: Maximum allowed file size. */
2291      printf( __( 'Maximum upload file size: %s.' ), esc_html( size_format( $max_upload_size ) ) );
2292      ?>
2293  </p>
2294      <?php
2295  
2296      /**
2297       * Fires on the post upload UI screen.
2298       *
2299       * Legacy (pre-3.5.0) media workflow hook.
2300       *
2301       * @since 2.6.0
2302       */
2303      do_action( 'post-upload-ui' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
2304  }
2305  
2306  /**
2307   * Outputs the legacy media upload form for a given media type.
2308   *
2309   * @since 2.5.0
2310   *
2311   * @param string       $type
2312   * @param array        $errors
2313   * @param int|WP_Error $id
2314   */
2315  function media_upload_type_form( $type = 'file', $errors = null, $id = null ) {
2316  
2317      media_upload_header();
2318  
2319      $post_id = isset( $_REQUEST['post_id'] ) ? (int) $_REQUEST['post_id'] : 0;
2320  
2321      $form_action_url = admin_url( "media-upload.php?type=$type&tab=type&post_id=$post_id" );
2322  
2323      /**
2324       * Filters the media upload form action URL.
2325       *
2326       * @since 2.6.0
2327       *
2328       * @param string $form_action_url The media upload form action URL.
2329       * @param string $type            The type of media. Default 'file'.
2330       */
2331      $form_action_url = apply_filters( 'media_upload_form_url', $form_action_url, $type );
2332      $form_class      = 'media-upload-form type-form validate';
2333  
2334      if ( get_user_setting( 'uploader' ) ) {
2335          $form_class .= ' html-uploader';
2336      }
2337  
2338      ?>
2339      <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">
2340          <?php submit_button( '', 'hidden', 'save', false ); ?>
2341      <input type="hidden" name="post_id" id="post_id" value="<?php echo (int) $post_id; ?>" />
2342          <?php wp_nonce_field( 'media-form' ); ?>
2343  
2344      <h3 class="media-title"><?php _e( 'Add media files from your computer' ); ?></h3>
2345  
2346      <?php media_upload_form( $errors ); ?>
2347  
2348      <script type="text/javascript">
2349      jQuery(function($){
2350          var preloaded = $(".media-item.preloaded");
2351          if ( preloaded.length > 0 ) {
2352              preloaded.each(function(){prepareMediaItem({id:this.id.replace(/[^0-9]/g, '')},'');});
2353          }
2354          updateMediaForm();
2355      });
2356      </script>
2357      <div id="media-items">
2358      <?php
2359  
2360      if ( $id ) {
2361          if ( ! is_wp_error( $id ) ) {
2362              add_filter( 'attachment_fields_to_edit', 'media_post_single_attachment_fields_to_edit', 10, 2 );
2363              echo get_media_items( $id, $errors );
2364          } else {
2365              echo '<div id="media-upload-error">' . esc_html( $id->get_error_message() ) . '</div></div>';
2366              exit;
2367          }
2368      }
2369  
2370      ?>
2371      </div>
2372  
2373      <p class="savebutton ml-submit">
2374          <?php submit_button( __( 'Save all changes' ), '', 'save', false ); ?>
2375      </p>
2376      </form>
2377      <?php
2378  }
2379  
2380  /**
2381   * Outputs the legacy media upload form for external media.
2382   *
2383   * @since 2.7.0
2384   *
2385   * @param string  $type
2386   * @param object  $errors
2387   * @param int     $id
2388   */
2389  function media_upload_type_url_form( $type = null, $errors = null, $id = null ) {
2390      if ( null === $type ) {
2391          $type = 'image';
2392      }
2393  
2394      media_upload_header();
2395  
2396      $post_id = isset( $_REQUEST['post_id'] ) ? (int) $_REQUEST['post_id'] : 0;
2397  
2398      $form_action_url = admin_url( "media-upload.php?type=$type&tab=type&post_id=$post_id" );
2399      /** This filter is documented in wp-admin/includes/media.php */
2400      $form_action_url = apply_filters( 'media_upload_form_url', $form_action_url, $type );
2401      $form_class      = 'media-upload-form type-form validate';
2402  
2403      if ( get_user_setting( 'uploader' ) ) {
2404          $form_class .= ' html-uploader';
2405      }
2406  
2407      ?>
2408      <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">
2409      <input type="hidden" name="post_id" id="post_id" value="<?php echo (int) $post_id; ?>" />
2410          <?php wp_nonce_field( 'media-form' ); ?>
2411  
2412      <h3 class="media-title"><?php _e( 'Insert media from another website' ); ?></h3>
2413  
2414      <script type="text/javascript">
2415      var addExtImage = {
2416  
2417      width : '',
2418      height : '',
2419      align : 'alignnone',
2420  
2421      insert : function() {
2422          var t = this, html, f = document.forms[0], cls, title = '', alt = '', caption = '';
2423  
2424          if ( '' === f.src.value || '' === t.width )
2425              return false;
2426  
2427          if ( f.alt.value )
2428              alt = f.alt.value.replace(/'/g, '&#039;').replace(/"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
2429  
2430          <?php
2431          /** This filter is documented in wp-admin/includes/media.php */
2432          if ( ! apply_filters( 'disable_captions', '' ) ) {
2433              ?>
2434              if ( f.caption.value ) {
2435                  caption = f.caption.value.replace(/\r\n|\r/g, '\n');
2436                  caption = caption.replace(/<[a-zA-Z0-9]+( [^<>]+)?>/g, function(a){
2437                      return a.replace(/[\r\n\t]+/, ' ');
2438                  });
2439  
2440                  caption = caption.replace(/\s*\n\s*/g, '<br />');
2441              }
2442              <?php
2443          }
2444  
2445          ?>
2446          cls = caption ? '' : ' class="'+t.align+'"';
2447  
2448          html = '<img alt="'+alt+'" src="'+f.src.value+'"'+cls+' width="'+t.width+'" height="'+t.height+'" />';
2449  
2450          if ( f.url.value ) {
2451              url = f.url.value.replace(/'/g, '&#039;').replace(/"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
2452              html = '<a href="'+url+'">'+html+'</a>';
2453          }
2454  
2455          if ( caption )
2456              html = '[caption id="" align="'+t.align+'" width="'+t.width+'"]'+html+caption+'[/caption]';
2457  
2458          var win = window.dialogArguments || opener || parent || top;
2459          win.send_to_editor(html);
2460          return false;
2461      },
2462  
2463      resetImageData : function() {
2464          var t = addExtImage;
2465  
2466          t.width = t.height = '';
2467          document.getElementById('go_button').style.color = '#bbb';
2468          if ( ! document.forms[0].src.value )
2469              document.getElementById('status_img').innerHTML = '';
2470          else document.getElementById('status_img').innerHTML = '<img src="<?php echo esc_url( admin_url( 'images/no.png' ) ); ?>" alt="" />';
2471      },
2472  
2473      updateImageData : function() {
2474          var t = addExtImage;
2475  
2476          t.width = t.preloadImg.width;
2477          t.height = t.preloadImg.height;
2478          document.getElementById('go_button').style.color = '#333';
2479          document.getElementById('status_img').innerHTML = '<img src="<?php echo esc_url( admin_url( 'images/yes.png' ) ); ?>" alt="" />';
2480      },
2481  
2482      getImageData : function() {
2483          if ( jQuery('table.describe').hasClass('not-image') )
2484              return;
2485  
2486          var t = addExtImage, src = document.forms[0].src.value;
2487  
2488          if ( ! src ) {
2489              t.resetImageData();
2490              return false;
2491          }
2492  
2493          document.getElementById('status_img').innerHTML = '<img src="<?php echo esc_url( admin_url( 'images/spinner-2x.gif' ) ); ?>" alt="" width="16" height="16" />';
2494          t.preloadImg = new Image();
2495          t.preloadImg.onload = t.updateImageData;
2496          t.preloadImg.onerror = t.resetImageData;
2497          t.preloadImg.src = src;
2498      }
2499      };
2500  
2501      jQuery(document).ready( function($) {
2502          $('.media-types input').click( function() {
2503              $('table.describe').toggleClass('not-image', $('#not-image').prop('checked') );
2504          });
2505      });
2506      </script>
2507  
2508      <div id="media-items">
2509      <div class="media-item media-blank">
2510      <?php
2511      /**
2512       * Filters the insert media from URL form HTML.
2513       *
2514       * @since 3.3.0
2515       *
2516       * @param string $form_html The insert from URL form HTML.
2517       */
2518      echo apply_filters( 'type_url_form_media', wp_media_insert_url_form( $type ) );
2519  
2520      ?>
2521      </div>
2522      </div>
2523      </form>
2524      <?php
2525  }
2526  
2527  /**
2528   * Adds gallery form to upload iframe
2529   *
2530   * @since 2.5.0
2531   *
2532   * @global string $redir_tab
2533   * @global string $type
2534   * @global string $tab
2535   *
2536   * @param array $errors
2537   */
2538  function media_upload_gallery_form( $errors ) {
2539      global $redir_tab, $type;
2540  
2541      $redir_tab = 'gallery';
2542      media_upload_header();
2543  
2544      $post_id         = (int) $_REQUEST['post_id'];
2545      $form_action_url = admin_url( "media-upload.php?type=$type&tab=gallery&post_id=$post_id" );
2546      /** This filter is documented in wp-admin/includes/media.php */
2547      $form_action_url = apply_filters( 'media_upload_form_url', $form_action_url, $type );
2548      $form_class      = 'media-upload-form validate';
2549  
2550      if ( get_user_setting( 'uploader' ) ) {
2551          $form_class .= ' html-uploader';
2552      }
2553  
2554      ?>
2555      <script type="text/javascript">
2556      jQuery(function($){
2557          var preloaded = $(".media-item.preloaded");
2558          if ( preloaded.length > 0 ) {
2559              preloaded.each(function(){prepareMediaItem({id:this.id.replace(/[^0-9]/g, '')},'');});
2560              updateMediaForm();
2561          }
2562      });
2563      </script>
2564      <div id="sort-buttons" class="hide-if-no-js">
2565      <span>
2566          <?php _e( 'All Tabs:' ); ?>
2567      <a href="#" id="showall"><?php _e( 'Show' ); ?></a>
2568      <a href="#" id="hideall" style="display:none;"><?php _e( 'Hide' ); ?></a>
2569      </span>
2570          <?php _e( 'Sort Order:' ); ?>
2571      <a href="#" id="asc"><?php _e( 'Ascending' ); ?></a> |
2572      <a href="#" id="desc"><?php _e( 'Descending' ); ?></a> |
2573      <a href="#" id="clear"><?php _ex( 'Clear', 'verb' ); ?></a>
2574      </div>
2575      <form enctype="multipart/form-data" method="post" action="<?php echo esc_url( $form_action_url ); ?>" class="<?php echo $form_class; ?>" id="gallery-form">
2576          <?php wp_nonce_field( 'media-form' ); ?>
2577          <?php // media_upload_form( $errors ); ?>
2578      <table class="widefat">
2579      <thead><tr>
2580      <th><?php _e( 'Media' ); ?></th>
2581      <th class="order-head"><?php _e( 'Order' ); ?></th>
2582      <th class="actions-head"><?php _e( 'Actions' ); ?></th>
2583      </tr></thead>
2584      </table>
2585      <div id="media-items">
2586          <?php add_filter( 'attachment_fields_to_edit', 'media_post_single_attachment_fields_to_edit', 10, 2 ); ?>
2587          <?php echo get_media_items( $post_id, $errors ); ?>
2588      </div>
2589  
2590      <p class="ml-submit">
2591          <?php
2592          submit_button(
2593              __( 'Save all changes' ),
2594              'savebutton',
2595              'save',
2596              false,
2597              array(
2598                  'id'    => 'save-all',
2599                  'style' => 'display: none;',
2600              )
2601          );
2602          ?>
2603      <input type="hidden" name="post_id" id="post_id" value="<?php echo (int) $post_id; ?>" />
2604      <input type="hidden" name="type" value="<?php echo esc_attr( $GLOBALS['type'] ); ?>" />
2605      <input type="hidden" name="tab" value="<?php echo esc_attr( $GLOBALS['tab'] ); ?>" />
2606      </p>
2607  
2608      <div id="gallery-settings" style="display:none;">
2609      <div class="title"><?php _e( 'Gallery Settings' ); ?></div>
2610      <table id="basic" class="describe"><tbody>
2611          <tr>
2612          <th scope="row" class="label">
2613              <label>
2614              <span class="alignleft"><?php _e( 'Link thumbnails to:' ); ?></span>
2615              </label>
2616          </th>
2617          <td class="field">
2618              <input type="radio" name="linkto" id="linkto-file" value="file" />
2619              <label for="linkto-file" class="radio"><?php _e( 'Image File' ); ?></label>
2620  
2621              <input type="radio" checked="checked" name="linkto" id="linkto-post" value="post" />
2622              <label for="linkto-post" class="radio"><?php _e( 'Attachment Page' ); ?></label>
2623          </td>
2624          </tr>
2625  
2626          <tr>
2627          <th scope="row" class="label">
2628              <label>
2629              <span class="alignleft"><?php _e( 'Order images by:' ); ?></span>
2630              </label>
2631          </th>
2632          <td class="field">
2633              <select id="orderby" name="orderby">
2634                  <option value="menu_order" selected="selected"><?php _e( 'Menu order' ); ?></option>
2635                  <option value="title"><?php _e( 'Title' ); ?></option>
2636                  <option value="post_date"><?php _e( 'Date/Time' ); ?></option>
2637                  <option value="rand"><?php _e( 'Random' ); ?></option>
2638              </select>
2639          </td>
2640          </tr>
2641  
2642          <tr>
2643          <th scope="row" class="label">
2644              <label>
2645              <span class="alignleft"><?php _e( 'Order:' ); ?></span>
2646              </label>
2647          </th>
2648          <td class="field">
2649              <input type="radio" checked="checked" name="order" id="order-asc" value="asc" />
2650              <label for="order-asc" class="radio"><?php _e( 'Ascending' ); ?></label>
2651  
2652              <input type="radio" name="order" id="order-desc" value="desc" />
2653              <label for="order-desc" class="radio"><?php _e( 'Descending' ); ?></label>
2654          </td>
2655          </tr>
2656  
2657          <tr>
2658          <th scope="row" class="label">
2659              <label>
2660              <span class="alignleft"><?php _e( 'Gallery columns:' ); ?></span>
2661              </label>
2662          </th>
2663          <td class="field">
2664              <select id="columns" name="columns">
2665                  <option value="1">1</option>
2666                  <option value="2">2</option>
2667                  <option value="3" selected="selected">3</option>
2668                  <option value="4">4</option>
2669                  <option value="5">5</option>
2670                  <option value="6">6</option>
2671                  <option value="7">7</option>
2672                  <option value="8">8</option>
2673                  <option value="9">9</option>
2674              </select>
2675          </td>
2676          </tr>
2677      </tbody></table>
2678  
2679      <p class="ml-submit">
2680      <input type="button" class="button" style="display:none;" onMouseDown="wpgallery.update();" name="insert-gallery" id="insert-gallery" value="<?php esc_attr_e( 'Insert gallery' ); ?>" />
2681      <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' ); ?>" />
2682      </p>
2683      </div>
2684      </form>
2685      <?php
2686  }
2687  
2688  /**
2689   * Outputs the legacy media upload form for the media library.
2690   *
2691   * @since 2.5.0
2692   *
2693   * @global wpdb      $wpdb            WordPress database abstraction object.
2694   * @global WP_Query  $wp_query        WordPress Query object.
2695   * @global WP_Locale $wp_locale       WordPress date and time locale object.
2696   * @global string    $type
2697   * @global string    $tab
2698   * @global array     $post_mime_types
2699   *
2700   * @param array $errors
2701   */
2702  function media_upload_library_form( $errors ) {
2703      global $wpdb, $wp_query, $wp_locale, $type, $tab, $post_mime_types;
2704  
2705      media_upload_header();
2706  
2707      $post_id = isset( $_REQUEST['post_id'] ) ? (int) $_REQUEST['post_id'] : 0;
2708  
2709      $form_action_url = admin_url( "media-upload.php?type=$type&tab=library&post_id=$post_id" );
2710      /** This filter is documented in wp-admin/includes/media.php */
2711      $form_action_url = apply_filters( 'media_upload_form_url', $form_action_url, $type );
2712      $form_class      = 'media-upload-form validate';
2713  
2714      if ( get_user_setting( 'uploader' ) ) {
2715          $form_class .= ' html-uploader';
2716      }
2717  
2718      $q                   = $_GET;
2719      $q['posts_per_page'] = 10;
2720      $q['paged']          = isset( $q['paged'] ) ? (int) $q['paged'] : 0;
2721      if ( $q['paged'] < 1 ) {
2722          $q['paged'] = 1;
2723      }
2724      $q['offset'] = ( $q['paged'] - 1 ) * 10;
2725      if ( $q['offset'] < 1 ) {
2726          $q['offset'] = 0;
2727      }
2728  
2729      list($post_mime_types, $avail_post_mime_types) = wp_edit_attachments_query( $q );
2730  
2731      ?>
2732      <form id="filter" method="get">
2733      <input type="hidden" name="type" value="<?php echo esc_attr( $type ); ?>" />
2734      <input type="hidden" name="tab" value="<?php echo esc_attr( $tab ); ?>" />
2735      <input type="hidden" name="post_id" value="<?php echo (int) $post_id; ?>" />
2736      <input type="hidden" name="post_mime_type" value="<?php echo isset( $_GET['post_mime_type'] ) ? esc_attr( $_GET['post_mime_type'] ) : ''; ?>" />
2737      <input type="hidden" name="context" value="<?php echo isset( $_GET['context'] ) ? esc_attr( $_GET['context'] ) : ''; ?>" />
2738  
2739      <p id="media-search" class="search-box">
2740          <label class="screen-reader-text" for="media-search-input"><?php _e( 'Search Media' ); ?>:</label>
2741          <input type="search" id="media-search-input" name="s" value="<?php the_search_query(); ?>" />
2742          <?php submit_button( __( 'Search Media' ), '', '', false ); ?>
2743      </p>
2744  
2745      <ul class="subsubsub">
2746          <?php
2747          $type_links = array();
2748          $_num_posts = (array) wp_count_attachments();
2749          $matches    = wp_match_mime_types( array_keys( $post_mime_types ), array_keys( $_num_posts ) );
2750          foreach ( $matches as $_type => $reals ) {
2751              foreach ( $reals as $real ) {
2752                  if ( isset( $num_posts[ $_type ] ) ) {
2753                      $num_posts[ $_type ] += $_num_posts[ $real ];
2754                  } else {
2755                      $num_posts[ $_type ] = $_num_posts[ $real ];
2756                  }
2757              }
2758          }
2759          // If available type specified by media button clicked, filter by that type.
2760          if ( empty( $_GET['post_mime_type'] ) && ! empty( $num_posts[ $type ] ) ) {
2761              $_GET['post_mime_type']                        = $type;
2762              list($post_mime_types, $avail_post_mime_types) = wp_edit_attachments_query();
2763          }
2764          if ( empty( $_GET['post_mime_type'] ) || 'all' === $_GET['post_mime_type'] ) {
2765              $class = ' class="current"';
2766          } else {
2767              $class = '';
2768          }
2769          $type_links[] = '<li><a href="' . esc_url(
2770              add_query_arg(
2771                  array(
2772                      'post_mime_type' => 'all',
2773                      'paged'          => false,
2774                      'm'              => false,
2775                  )
2776              )
2777          ) . '"' . $class . '>' . __( 'All Types' ) . '</a>';
2778          foreach ( $post_mime_types as $mime_type => $label ) {
2779              $class = '';
2780  
2781              if ( ! wp_match_mime_types( $mime_type, $avail_post_mime_types ) ) {
2782                  continue;
2783              }
2784  
2785              if ( isset( $_GET['post_mime_type'] ) && wp_match_mime_types( $mime_type, $_GET['post_mime_type'] ) ) {
2786                  $class = ' class="current"';
2787              }
2788  
2789              $type_links[] = '<li><a href="' . esc_url(
2790                  add_query_arg(
2791                      array(
2792                          'post_mime_type' => $mime_type,
2793                          'paged'          => false,
2794                      )
2795                  )
2796              ) . '"' . $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>';
2797          }
2798          /**
2799           * Filters the media upload mime type list items.
2800           *
2801           * Returned values should begin with an `<li>` tag.
2802           *
2803           * @since 3.1.0
2804           *
2805           * @param string[] $type_links An array of list items containing mime type link HTML.
2806           */
2807          echo implode( ' | </li>', apply_filters( 'media_upload_mime_type_links', $type_links ) ) . '</li>';
2808          unset( $type_links );
2809          ?>
2810      </ul>
2811  
2812      <div class="tablenav">
2813  
2814          <?php
2815          $page_links = paginate_links(
2816              array(
2817                  'base'      => add_query_arg( 'paged', '%#%' ),
2818                  'format'    => '',
2819                  'prev_text' => __( '&laquo;' ),
2820                  'next_text' => __( '&raquo;' ),
2821                  'total'     => ceil( $wp_query->found_posts / 10 ),
2822                  'current'   => $q['paged'],
2823              )
2824          );
2825  
2826          if ( $page_links ) {
2827              echo "<div class='tablenav-pages'>$page_links</div>";
2828          }
2829          ?>
2830  
2831      <div class="alignleft actions">
2832          <?php
2833  
2834          $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";
2835  
2836          $arc_result = $wpdb->get_results( $arc_query );
2837  
2838          $month_count    = count( $arc_result );
2839          $selected_month = isset( $_GET['m'] ) ? $_GET['m'] : 0;
2840  
2841          if ( $month_count && ! ( 1 == $month_count && 0 == $arc_result[0]->mmonth ) ) {
2842              ?>
2843              <select name='m'>
2844              <option<?php selected( $selected_month, 0 ); ?> value='0'><?php _e( 'All dates' ); ?></option>
2845              <?php
2846  
2847              foreach ( $arc_result as $arc_row ) {
2848                  if ( 0 == $arc_row->yyear ) {
2849                      continue;
2850                  }
2851  
2852                  $arc_row->mmonth = zeroise( $arc_row->mmonth, 2 );
2853  
2854                  if ( $arc_row->yyear . $arc_row->mmonth == $selected_month ) {
2855                      $default = ' selected="selected"';
2856                  } else {
2857                      $default = '';
2858                  }
2859  
2860                  echo "<option$default value='" . esc_attr( $arc_row->yyear . $arc_row->mmonth ) . "'>";
2861                  echo esc_html( $wp_locale->get_month( $arc_row->mmonth ) . " $arc_row->yyear" );
2862                  echo "</option>\n";
2863              }
2864  
2865              ?>
2866              </select>
2867          <?php } ?>
2868  
2869          <?php submit_button( __( 'Filter &#187;' ), '', 'post-query-submit', false ); ?>
2870  
2871      </div>
2872  
2873      <br class="clear" />
2874      </div>
2875      </form>
2876  
2877      <form enctype="multipart/form-data" method="post" action="<?php echo esc_url( $form_action_url ); ?>" class="<?php echo $form_class; ?>" id="library-form">
2878      <?php wp_nonce_field( 'media-form' ); ?>
2879      <?php // media_upload_form( $errors ); ?>
2880  
2881      <script type="text/javascript">
2882      jQuery(function($){
2883          var preloaded = $(".media-item.preloaded");
2884          if ( preloaded.length > 0 ) {
2885              preloaded.each(function(){prepareMediaItem({id:this.id.replace(/[^0-9]/g, '')},'');});
2886              updateMediaForm();
2887          }
2888      });
2889      </script>
2890  
2891      <div id="media-items">
2892          <?php add_filter( 'attachment_fields_to_edit', 'media_post_single_attachment_fields_to_edit', 10, 2 ); ?>
2893          <?php echo get_media_items( null, $errors ); ?>
2894      </div>
2895      <p class="ml-submit">
2896          <?php submit_button( __( 'Save all changes' ), 'savebutton', 'save', false ); ?>
2897      <input type="hidden" name="post_id" id="post_id" value="<?php echo (int) $post_id; ?>" />
2898      </p>
2899      </form>
2900      <?php
2901  }
2902  
2903  /**
2904   * Creates the form for external url
2905   *
2906   * @since 2.7.0
2907   *
2908   * @param string $default_view
2909   * @return string the form html
2910   */
2911  function wp_media_insert_url_form( $default_view = 'image' ) {
2912      /** This filter is documented in wp-admin/includes/media.php */
2913      if ( ! apply_filters( 'disable_captions', '' ) ) {
2914          $caption = '
2915          <tr class="image-only">
2916              <th scope="row" class="label">
2917                  <label for="caption"><span class="alignleft">' . __( 'Image Caption' ) . '</span></label>
2918              </th>
2919              <td class="field"><textarea id="caption" name="caption"></textarea></td>
2920          </tr>';
2921      } else {
2922          $caption = '';
2923      }
2924  
2925      $default_align = get_option( 'image_default_align' );
2926  
2927      if ( empty( $default_align ) ) {
2928          $default_align = 'none';
2929      }
2930  
2931      if ( 'image' === $default_view ) {
2932          $view        = 'image-only';
2933          $table_class = '';
2934      } else {
2935          $view        = 'not-image';
2936          $table_class = $view;
2937      }
2938  
2939      return '
2940      <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>
2941      <p class="media-types media-types-required-info">' .
2942          /* translators: %s: Asterisk symbol (*). */
2943          sprintf( __( 'Required fields are marked %s' ), '<span class="required">*</span>' ) .
2944      '</p>
2945      <table class="describe ' . $table_class . '"><tbody>
2946          <tr>
2947              <th scope="row" class="label" style="width:130px;">
2948                  <label for="src"><span class="alignleft">' . __( 'URL' ) . '</span> <span class="required">*</span></label>
2949                  <span class="alignright" id="status_img"></span>
2950              </th>
2951              <td class="field"><input id="src" name="src" value="" type="text" required onblur="addExtImage.getImageData()" /></td>
2952          </tr>
2953  
2954          <tr>
2955              <th scope="row" class="label">
2956                  <label for="title"><span class="alignleft">' . __( 'Title' ) . '</span> <span class="required">*</span></label>
2957              </th>
2958              <td class="field"><input id="title" name="title" value="" type="text" required /></td>
2959          </tr>
2960  
2961          <tr class="not-image"><td></td><td><p class="help">' . __( 'Link text, e.g. &#8220;Ransom Demands (PDF)&#8221;' ) . '</p></td></tr>
2962  
2963          <tr class="image-only">
2964              <th scope="row" class="label">
2965                  <label for="alt"><span class="alignleft">' . __( 'Alternative Text' ) . '</span></label>
2966              </th>
2967              <td class="field"><input id="alt" name="alt" value="" type="text" required />
2968              <p class="help">' . __( 'Alt text for the image, e.g. &#8220;The Mona Lisa&#8221;' ) . '</p></td>
2969          </tr>
2970          ' . $caption . '
2971          <tr class="align image-only">
2972              <th scope="row" class="label"><p><label for="align">' . __( 'Alignment' ) . '</label></p></th>
2973              <td class="field">
2974                  <input name="align" id="align-none" value="none" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . ( 'none' === $default_align ? ' checked="checked"' : '' ) . ' />
2975                  <label for="align-none" class="align image-align-none-label">' . __( 'None' ) . '</label>
2976                  <input name="align" id="align-left" value="left" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . ( 'left' === $default_align ? ' checked="checked"' : '' ) . ' />
2977                  <label for="align-left" class="align image-align-left-label">' . __( 'Left' ) . '</label>
2978                  <input name="align" id="align-center" value="center" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . ( 'center' === $default_align ? ' checked="checked"' : '' ) . ' />
2979                  <label for="align-center" class="align image-align-center-label">' . __( 'Center' ) . '</label>
2980                  <input name="align" id="align-right" value="right" onclick="addExtImage.align=\'align\'+this.value" type="radio"' . ( 'right' === $default_align ? ' checked="checked"' : '' ) . ' />
2981                  <label for="align-right" class="align image-align-right-label">' . __( 'Right' ) . '</label>
2982              </td>
2983          </tr>
2984  
2985          <tr class="image-only">
2986              <th scope="row" class="label">
2987                  <label for="url"><span class="alignleft">' . __( 'Link Image To:' ) . '</span></label>
2988              </th>
2989              <td class="field"><input id="url" name="url" value="" type="text" /><br />
2990  
2991              <button type="button" class="button" value="" onclick="document.forms[0].url.value=null">' . __( 'None' ) . '</button>
2992              <button type="button" class="button" value="" onclick="document.forms[0].url.value=document.forms[0].src.value">' . __( 'Link to image' ) . '</button>
2993              <p class="help">' . __( 'Enter a link URL or click above for presets.' ) . '</p></td>
2994          </tr>
2995          <tr class="image-only">
2996              <td></td>
2997              <td>
2998                  <input type="button" class="button" id="go_button" style="color:#bbb;" onclick="addExtImage.insert()" value="' . esc_attr__( 'Insert into Post' ) . '" />
2999              </td>
3000          </tr>
3001          <tr class="not-image">
3002              <td></td>
3003              <td>
3004                  ' . get_submit_button( __( 'Insert into Post' ), '', 'insertonlybutton', false ) . '
3005              </td>
3006          </tr>
3007      </tbody></table>';
3008  }
3009  
3010  /**
3011   * Displays the multi-file uploader message.
3012   *
3013   * @since 2.6.0
3014   *
3015   * @global int $post_ID
3016   */
3017  function media_upload_flash_bypass() {
3018      $browser_uploader = admin_url( 'media-new.php?browser-uploader' );
3019  
3020      $post = get_post();
3021      if ( $post ) {
3022          $browser_uploader .= '&amp;post_id=' . (int) $post->ID;
3023      } elseif ( ! empty( $GLOBALS['post_ID'] ) ) {
3024          $browser_uploader .= '&amp;post_id=' . (int) $GLOBALS['post_ID'];
3025      }
3026  
3027      ?>
3028      <p class="upload-flash-bypass">
3029      <?php
3030          printf(
3031              /* translators: 1: URL to browser uploader, 2: Additional link attributes. */
3032              __( 'You are using the multi-file uploader. Problems? Try the <a href="%1$s" %2$s>browser uploader</a> instead.' ),
3033              $browser_uploader,
3034              'target="_blank"'
3035          );
3036      ?>
3037      </p>
3038      <?php
3039  }
3040  
3041  /**
3042   * Displays the browser's built-in uploader message.
3043   *
3044   * @since 2.6.0
3045   */
3046  function media_upload_html_bypass() {
3047      ?>
3048      <p class="upload-html-bypass hide-if-no-js">
3049          <?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>.' ); ?>
3050      </p>
3051      <?php
3052  }
3053  
3054  /**
3055   * Used to display a "After a file has been uploaded..." help message.
3056   *
3057   * @since 3.3.0
3058   */
3059  function media_upload_text_after() {}
3060  
3061  /**
3062   * Displays the checkbox to scale images.
3063   *
3064   * @since 3.3.0
3065   */
3066  function media_upload_max_image_resize() {
3067      $checked = get_user_setting( 'upload_resize' ) ? ' checked="true"' : '';
3068      $a       = '';
3069      $end     = '';
3070  
3071      if ( current_user_can( 'manage_options' ) ) {
3072          $a   = '<a href="' . esc_url( admin_url( 'options-media.php' ) ) . '" target="_blank">';
3073          $end = '</a>';
3074      }
3075  
3076      ?>
3077      <p class="hide-if-no-js"><label>
3078      <input name="image_resize" type="checkbox" id="image_resize" value="true"<?php echo $checked; ?> />
3079      <?php
3080      /* translators: 1: Link start tag, 2: Link end tag, 3: Width, 4: Height. */
3081      printf( __( 'Scale images to match the large size selected in %1$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' ) );
3082  
3083      ?>
3084      </label></p>
3085      <?php
3086  }
3087  
3088  /**
3089   * Displays the out of storage quota message in Multisite.
3090   *
3091   * @since 3.5.0
3092   */
3093  function multisite_over_quota_message() {
3094      echo '<p>' . sprintf(
3095          /* translators: %s: Allowed space allocation. */
3096          __( 'Sorry, you have used your space allocation of %s. Please delete some files to upload more files.' ),
3097          size_format( get_space_allowed() * MB_IN_BYTES )
3098      ) . '</p>';
3099  }
3100  
3101  /**
3102   * Displays the image and editor in the post editor
3103   *
3104   * @since 3.5.0
3105   *
3106   * @param WP_Post $post A post object.
3107   */
3108  function edit_form_image_editor( $post ) {
3109      $open = isset( $_GET['image-editor'] );
3110  
3111      if ( $open ) {
3112          require_once ABSPATH . 'wp-admin/includes/image-edit.php';
3113      }
3114  
3115      $thumb_url     = false;
3116      $attachment_id = (int) $post->ID;
3117  
3118      if ( $attachment_id ) {
3119          $thumb_url = wp_get_attachment_image_src( $attachment_id, array( 900, 450 ), true );
3120      }
3121  
3122      $alt_text = get_post_meta( $post->ID, '_wp_attachment_image_alt', true );
3123  
3124      $att_url = wp_get_attachment_url( $post->ID );
3125      ?>
3126      <div class="wp_attachment_holder wp-clearfix">
3127      <?php
3128  
3129      if ( wp_attachment_is_image( $post->ID ) ) :
3130          $image_edit_button = '';
3131          if ( wp_image_editor_supports( array( 'mime_type' => $post->post_mime_type ) ) ) {
3132              $nonce             = wp_create_nonce( "image_editor-$post->ID" );
3133              $image_edit_button = "<input type='button' id='imgedit-open-btn-$post->ID' onclick='imageEdit.open( $post->ID, \"$nonce\" )' class='button' value='" . esc_attr__( 'Edit Image' ) . "' /> <span class='spinner'></span>";
3134          }
3135  
3136          $open_style     = '';
3137          $not_open_style = '';
3138  
3139          if ( $open ) {
3140              $open_style = ' style="display:none"';
3141          } else {
3142              $not_open_style = ' style="display:none"';
3143          }
3144  
3145          ?>
3146          <div class="imgedit-response" id="imgedit-response-<?php echo $attachment_id; ?>"></div>
3147  
3148          <div<?php echo $open_style; ?> class="wp_attachment_image wp-clearfix" id="media-head-<?php echo $attachment_id; ?>">
3149              <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>
3150              <p><?php echo $image_edit_button; ?></p>
3151          </div>
3152          <div<?php echo $not_open_style; ?> class="image-editor" id="image-editor-<?php echo $attachment_id; ?>">
3153          <?php
3154  
3155          if ( $open ) {
3156              wp_image_editor( $attachment_id );
3157          }
3158  
3159          ?>
3160          </div>
3161          <?php
3162      elseif ( $attachment_id && wp_attachment_is( 'audio', $post ) ) :
3163  
3164          wp_maybe_generate_attachment_metadata( $post );
3165  
3166          echo wp_audio_shortcode( array( 'src' => $att_url ) );
3167  
3168      elseif ( $attachment_id && wp_attachment_is( 'video', $post ) ) :
3169  
3170          wp_maybe_generate_attachment_metadata( $post );
3171  
3172          $meta = wp_get_attachment_metadata( $attachment_id );
3173          $w    = ! empty( $meta['width'] ) ? min( $meta['width'], 640 ) : 0;
3174          $h    = ! empty( $meta['height'] ) ? $meta['height'] : 0;
3175  
3176          if ( $h && $w < $meta['width'] ) {
3177              $h = round( ( $meta['height'] * $w ) / $meta['width'] );
3178          }
3179  
3180          $attr = array( 'src' => $att_url );
3181  
3182          if ( ! empty( $w ) && ! empty( $h ) ) {
3183              $attr['width']  = $w;
3184              $attr['height'] = $h;
3185          }
3186  
3187          $thumb_id = get_post_thumbnail_id( $attachment_id );
3188  
3189          if ( ! empty( $thumb_id ) ) {
3190              $attr['poster'] = wp_get_attachment_url( $thumb_id );
3191          }
3192  
3193          echo wp_video_shortcode( $attr );
3194  
3195      elseif ( isset( $thumb_url[0] ) ) :
3196          ?>
3197          <div class="wp_attachment_image wp-clearfix" id="media-head-<?php echo $attachment_id; ?>">
3198              <p id="thumbnail-head-<?php echo $attachment_id; ?>">
3199                  <img class="thumbnail" src="<?php echo set_url_scheme( $thumb_url[0] ); ?>" style="max-width:100%" alt="" />
3200              </p>
3201          </div>
3202          <?php
3203  
3204      else :
3205  
3206          /**
3207           * Fires when an attachment type can't be rendered in the edit form.
3208           *
3209           * @since 4.6.0
3210           *
3211           * @param WP_Post $post A post object.
3212           */
3213          do_action( 'wp_edit_form_attachment_display', $post );
3214  
3215      endif;
3216  
3217      ?>
3218      </div>
3219      <div class="wp_attachment_details edit-form-section">
3220      <?php if ( 'image' === substr( $post->post_mime_type, 0, 5 ) ) : ?>
3221          <p class="attachment-alt-text">
3222              <label for="attachment_alt"><strong><?php _e( 'Alternative Text' ); ?></strong></label><br />
3223              <input type="text" class="widefat" name="_wp_attachment_image_alt" id="attachment_alt" aria-describedby="alt-text-description" value="<?php echo esc_attr( $alt_text ); ?>" />
3224          </p>
3225          <p class="attachment-alt-text-description" id="alt-text-description">
3226          <?php
3227  
3228          printf(
3229              /* translators: 1: Link to tutorial, 2: Additional link attributes, 3: Accessibility text. */
3230              __( '<a href="%1$s" %2$s>Describe the purpose of the image%3$s</a>. Leave empty if the image is purely decorative.' ),
3231              esc_url( 'https://www.w3.org/WAI/tutorials/images/decision-tree' ),
3232              'target="_blank" rel="noopener"',
3233              sprintf(
3234                  '<span class="screen-reader-text"> %s</span>',
3235                  /* translators: Accessibility text. */
3236                  __( '(opens in a new tab)' )
3237              )
3238          );
3239  
3240          ?>
3241          </p>
3242      <?php endif; ?>
3243  
3244          <p>
3245              <label for="attachment_caption"><strong><?php _e( 'Caption' ); ?></strong></label><br />
3246              <textarea class="widefat" name="excerpt" id="attachment_caption"><?php echo $post->post_excerpt; ?></textarea>
3247          </p>
3248  
3249      <?php
3250  
3251      $quicktags_settings = array( 'buttons' => 'strong,em,link,block,del,ins,img,ul,ol,li,code,close' );
3252      $editor_args        = array(
3253          'textarea_name' => 'content',
3254          'textarea_rows' => 5,
3255          'media_buttons' => false,
3256          'tinymce'       => false,
3257          'quicktags'     => $quicktags_settings,
3258      );
3259  
3260      ?>
3261  
3262      <label for="attachment_content" class="attachment-content-description"><strong><?php _e( 'Description' ); ?></strong>
3263      <?php
3264  
3265      if ( preg_match( '#^(audio|video)/#', $post->post_mime_type ) ) {
3266          echo ': ' . __( 'Displayed on attachment pages.' );
3267      }
3268  
3269      ?>
3270      </label>
3271      <?php wp_editor( format_to_edit( $post->post_content ), 'attachment_content', $editor_args ); ?>
3272  
3273      </div>
3274      <?php
3275  
3276      $extras = get_compat_media_markup( $post->ID );
3277      echo $extras['item'];
3278      echo '<input type="hidden" id="image-edit-context" value="edit-attachment" />' . "\n";
3279  }
3280  
3281  /**
3282   * Displays non-editable attachment metadata in the publish meta box.
3283   *
3284   * @since 3.5.0
3285   */
3286  function attachment_submitbox_metadata() {
3287      $post          = get_post();
3288      $attachment_id = $post->ID;
3289  
3290      $file     = get_attached_file( $attachment_id );
3291      $filename = esc_html( wp_basename( $file ) );
3292  
3293      $media_dims = '';
3294      $meta       = wp_get_attachment_metadata( $attachment_id );
3295  
3296      if ( isset( $meta['width'], $meta['height'] ) ) {
3297          $media_dims .= "<span id='media-dims-$attachment_id'>{$meta['width']}&nbsp;&times;&nbsp;{$meta['height']}</span> ";
3298      }
3299      /** This filter is documented in wp-admin/includes/media.php */
3300      $media_dims = apply_filters( 'media_meta', $media_dims, $post );
3301  
3302      $att_url = wp_get_attachment_url( $attachment_id );
3303  
3304      $author = new WP_User( $post->post_author );
3305  
3306      $uploaded_by_name = __( '(no author)' );
3307      $uploaded_by_link = '';
3308  
3309      if ( $author->exists() ) {
3310          $uploaded_by_name = $author->display_name ? $author->display_name : $author->nickname;
3311          $uploaded_by_link = get_edit_user_link( $author->ID );
3312      }
3313      ?>
3314      <div class="misc-pub-section misc-pub-uploadedby">
3315          <?php if ( $uploaded_by_link ) { ?>
3316              <?php _e( 'Uploaded by:' ); ?> <a href="<?php echo $uploaded_by_link; ?>"><strong><?php echo $uploaded_by_name; ?></strong></a>
3317          <?php } else { ?>
3318              <?php _e( 'Uploaded by:' ); ?> <strong><?php echo $uploaded_by_name; ?></strong>
3319          <?php } ?>
3320      </div>
3321  
3322      <?php
3323      if ( $post->post_parent ) {
3324          $post_parent = get_post( $post->post_parent );
3325          if ( $post_parent ) {
3326              $uploaded_to_title = $post_parent->post_title ? $post_parent->post_title : __( '(no title)' );
3327              $uploaded_to_link  = get_edit_post_link( $post->post_parent, 'raw' );
3328              ?>
3329              <div class="misc-pub-section misc-pub-uploadedto">
3330                  <?php if ( $uploaded_to_link ) { ?>
3331                      <?php _e( 'Uploaded to:' ); ?> <a href="<?php echo $uploaded_to_link; ?>"><strong><?php echo $uploaded_to_title; ?></strong></a>
3332                  <?php } else { ?>
3333                      <?php _e( 'Uploaded to:' ); ?> <strong><?php echo $uploaded_to_title; ?></strong>
3334                  <?php } ?>
3335              </div>
3336              <?php
3337          }
3338      }
3339      ?>
3340  
3341      <div class="misc-pub-section misc-pub-attachment">
3342          <label for="attachment_url"><?php _e( 'File URL:' ); ?></label>
3343          <input type="text" class="widefat urlfield" readonly="readonly" name="attachment_url" id="attachment_url" value="<?php echo esc_attr( $att_url ); ?>" />
3344          <span class="copy-to-clipboard-container">
3345              <button type="button" class="button copy-attachment-url edit-media" data-clipboard-target="#attachment_url"><?php _e( 'Copy URL to clipboard' ); ?></button>
3346              <span class="success hidden" aria-hidden="true"><?php _e( 'Copied!' ); ?></span>
3347          </span>
3348      </div>
3349      <div class="misc-pub-section misc-pub-filename">
3350          <?php _e( 'File name:' ); ?> <strong><?php echo $filename; ?></strong>
3351      </div>
3352      <div class="misc-pub-section misc-pub-filetype">
3353          <?php _e( 'File type:' ); ?>
3354          <strong>
3355          <?php
3356  
3357          if ( preg_match( '/^.*?\.(\w+)$/', get_attached_file( $post->ID ), $matches ) ) {
3358              echo esc_html( strtoupper( $matches[1] ) );
3359              list( $mime_type ) = explode( '/', $post->post_mime_type );
3360              if ( 'image' !== $mime_type && ! empty( $meta['mime_type'] ) ) {
3361                  if ( "$mime_type/" . strtolower( $matches[1] ) !== $meta['mime_type'] ) {
3362                      echo ' (' . $meta['mime_type'] . ')';
3363                  }
3364              }
3365          } else {
3366              echo strtoupper( str_replace( 'image/', '', $post->post_mime_type ) );
3367          }
3368  
3369          ?>
3370          </strong>
3371      </div>
3372  
3373      <?php
3374  
3375      $file_size = false;
3376  
3377      if ( isset( $meta['filesize'] ) ) {
3378          $file_size = $meta['filesize'];
3379      } elseif ( file_exists( $file ) ) {
3380          $file_size = filesize( $file );
3381      }
3382  
3383      if ( ! empty( $file_size ) ) {
3384          ?>
3385          <div class="misc-pub-section misc-pub-filesize">
3386              <?php _e( 'File size:' ); ?> <strong><?php echo size_format( $file_size ); ?></strong>
3387          </div>
3388          <?php
3389      }
3390  
3391      if ( preg_match( '#^(audio|video)/#', $post->post_mime_type ) ) {
3392          $fields = array(
3393              'length_formatted' => __( 'Length:' ),
3394              'bitrate'          => __( 'Bitrate:' ),
3395          );
3396  
3397          /**
3398           * Filters the audio and video metadata fields to be shown in the publish meta box.
3399           *
3400           * The key for each item in the array should correspond to an attachment
3401           * metadata key, and the value should be the desired label.
3402           *
3403           * @since 3.7.0
3404           * @since 4.9.0 Added the `$post` parameter.
3405           *
3406           * @param array   $fields An array of the attachment metadata keys and labels.
3407           * @param WP_Post $post   WP_Post object for the current attachment.
3408           */
3409          $fields = apply_filters( 'media_submitbox_misc_sections', $fields, $post );
3410  
3411          foreach ( $fields as $key => $label ) {
3412              if ( empty( $meta[ $key ] ) ) {
3413                  continue;
3414              }
3415  
3416              ?>
3417              <div class="misc-pub-section misc-pub-mime-meta misc-pub-<?php echo sanitize_html_class( $key ); ?>">
3418                  <?php echo $label; ?>
3419                  <strong>
3420                  <?php
3421  
3422                  switch ( $key ) {
3423                      case 'bitrate':
3424                          echo round( $meta['bitrate'] / 1000 ) . 'kb/s';
3425                          if ( ! empty( $meta['bitrate_mode'] ) ) {
3426                              echo ' ' . strtoupper( esc_html( $meta['bitrate_mode'] ) );
3427                          }
3428                          break;
3429                      default:
3430                          echo esc_html( $meta[ $key ] );
3431                          break;
3432                  }
3433  
3434                  ?>
3435                  </strong>
3436              </div>
3437              <?php
3438          }
3439  
3440          $fields = array(
3441              'dataformat' => __( 'Audio Format:' ),
3442              'codec'      => __( 'Audio Codec:' ),
3443          );
3444  
3445          /**
3446           * Filters the audio attachment metadata fields to be shown in the publish meta box.
3447           *
3448           * The key for each item in the array should correspond to an attachment
3449           * metadata key, and the value should be the desired label.
3450           *
3451           * @since 3.7.0
3452           * @since 4.9.0 Added the `$post` parameter.
3453           *
3454           * @param array   $fields An array of the attachment metadata keys and labels.
3455           * @param WP_Post $post   WP_Post object for the current attachment.
3456           */
3457          $audio_fields = apply_filters( 'audio_submitbox_misc_sections', $fields, $post );
3458  
3459          foreach ( $audio_fields as $key => $label ) {
3460              if ( empty( $meta['audio'][ $key ] ) ) {
3461                  continue;
3462              }
3463  
3464              ?>
3465              <div class="misc-pub-section misc-pub-audio misc-pub-<?php echo sanitize_html_class( $key ); ?>">
3466                  <?php echo $label; ?> <strong><?php echo esc_html( $meta['audio'][ $key ] ); ?></strong>
3467              </div>
3468              <?php
3469          }
3470      }
3471  
3472      if ( $media_dims ) {
3473          ?>
3474          <div class="misc-pub-section misc-pub-dimensions">
3475              <?php _e( 'Dimensions:' ); ?> <strong><?php echo $media_dims; ?></strong>
3476          </div>
3477          <?php
3478      }
3479  
3480      if ( ! empty( $meta['original_image'] ) ) {
3481          ?>
3482          <div class="misc-pub-section misc-pub-original-image">
3483              <?php _e( 'Original image:' ); ?>
3484              <a href="<?php echo esc_url( wp_get_original_image_url( $attachment_id ) ); ?>">
3485                  <?php echo esc_html( wp_basename( wp_get_original_image_path( $attachment_id ) ) ); ?>
3486              </a>
3487          </div>
3488          <?php
3489      }
3490  }
3491  
3492  /**
3493   * Parse ID3v2, ID3v1, and getID3 comments to extract usable data
3494   *
3495   * @since 3.6.0
3496   *
3497   * @param array $metadata An existing array with data
3498   * @param array $data Data supplied by ID3 tags
3499   */
3500  function wp_add_id3_tag_data( &$metadata, $data ) {
3501      foreach ( array( 'id3v2', 'id3v1' ) as $version ) {
3502          if ( ! empty( $data[ $version ]['comments'] ) ) {
3503              foreach ( $data[ $version ]['comments'] as $key => $list ) {
3504                  if ( 'length' !== $key && ! empty( $list ) ) {
3505                      $metadata[ $key ] = wp_kses_post( reset( $list ) );
3506                      // Fix bug in byte stream analysis.
3507                      if ( 'terms_of_use' === $key && 0 === strpos( $metadata[ $key ], 'yright notice.' ) ) {
3508                          $metadata[ $key ] = 'Cop' . $metadata[ $key ];
3509                      }
3510                  }
3511              }
3512              break;
3513          }
3514      }
3515  
3516      if ( ! empty( $data['id3v2']['APIC'] ) ) {
3517          $image = reset( $data['id3v2']['APIC'] );
3518          if ( ! empty( $image['data'] ) ) {
3519              $metadata['image'] = array(
3520                  'data'   => $image['data'],
3521                  'mime'   => $image['image_mime'],
3522                  'width'  => $image['image_width'],
3523                  'height' => $image['image_height'],
3524              );
3525          }
3526      } elseif ( ! empty( $data['comments']['picture'] ) ) {
3527          $image = reset( $data['comments']['picture'] );
3528          if ( ! empty( $image['data'] ) ) {
3529              $metadata['image'] = array(
3530                  'data' => $image['data'],
3531                  'mime' => $image['image_mime'],
3532              );
3533          }
3534      }
3535  }
3536  
3537  /**
3538   * Retrieve metadata from a video file's ID3 tags
3539   *
3540   * @since 3.6.0
3541   *
3542   * @param string $file Path to file.
3543   * @return array|false Returns array of metadata, if found.
3544   */
3545  function wp_read_video_metadata( $file ) {
3546      if ( ! file_exists( $file ) ) {
3547          return false;
3548      }
3549  
3550      $metadata = array();
3551  
3552      if ( ! defined( 'GETID3_TEMP_DIR' ) ) {
3553          define( 'GETID3_TEMP_DIR', get_temp_dir() );
3554      }
3555  
3556      if ( ! class_exists( 'getID3', false ) ) {
3557          require ABSPATH . WPINC . '/ID3/getid3.php';
3558      }
3559  
3560      $id3  = new getID3();
3561      $data = $id3->analyze( $file );
3562  
3563      if ( isset( $data['video']['lossless'] ) ) {
3564          $metadata['lossless'] = $data['video']['lossless'];
3565      }
3566  
3567      if ( ! empty( $data['video']['bitrate'] ) ) {
3568          $metadata['bitrate'] = (int) $data['video']['bitrate'];
3569      }
3570  
3571      if ( ! empty( $data['video']['bitrate_mode'] ) ) {
3572          $metadata['bitrate_mode'] = $data['video']['bitrate_mode'];
3573      }
3574  
3575      if ( ! empty( $data['filesize'] ) ) {
3576          $metadata['filesize'] = (int) $data['filesize'];
3577      }
3578  
3579      if ( ! empty( $data['mime_type'] ) ) {
3580          $metadata['mime_type'] = $data['mime_type'];
3581      }
3582  
3583      if ( ! empty( $data['playtime_seconds'] ) ) {
3584          $metadata['length'] = (int) round( $data['playtime_seconds'] );
3585      }
3586  
3587      if ( ! empty( $data['playtime_string'] ) ) {
3588          $metadata['length_formatted'] = $data['playtime_string'];
3589      }
3590  
3591      if ( ! empty( $data['video']['resolution_x'] ) ) {
3592          $metadata['width'] = (int) $data['video']['resolution_x'];
3593      }
3594  
3595      if ( ! empty( $data['video']['resolution_y'] ) ) {
3596          $metadata['height'] = (int) $data['video']['resolution_y'];
3597      }
3598  
3599      if ( ! empty( $data['fileformat'] ) ) {
3600          $metadata['fileformat'] = $data['fileformat'];
3601      }
3602  
3603      if ( ! empty( $data['video']['dataformat'] ) ) {
3604          $metadata['dataformat'] = $data['video']['dataformat'];
3605      }
3606  
3607      if ( ! empty( $data['video']['encoder'] ) ) {
3608          $metadata['encoder'] = $data['video']['encoder'];
3609      }
3610  
3611      if ( ! empty( $data['video']['codec'] ) ) {
3612          $metadata['codec'] = $data['video']['codec'];
3613      }
3614  
3615      if ( ! empty( $data['audio'] ) ) {
3616          unset( $data['audio']['streams'] );
3617          $metadata['audio'] = $data['audio'];
3618      }
3619  
3620      if ( empty( $metadata['created_timestamp'] ) ) {
3621          $created_timestamp = wp_get_media_creation_timestamp( $data );
3622  
3623          if ( false !== $created_timestamp ) {
3624              $metadata['created_timestamp'] = $created_timestamp;
3625          }
3626      }
3627  
3628      wp_add_id3_tag_data( $metadata, $data );
3629  
3630      $file_format = isset( $metadata['fileformat'] ) ? $metadata['fileformat'] : null;
3631  
3632      /**
3633       * Filters the array of metadata retrieved from a video.
3634       *
3635       * In core, usually this selection is what is stored.
3636       * More complete data can be parsed from the `$data` parameter.
3637       *
3638       * @since 4.9.0
3639       *
3640       * @param array  $metadata       Filtered Video metadata.
3641       * @param string $file           Path to video file.
3642       * @param string $file_format    File format of video, as analyzed by getID3.
3643       * @param string $data           Raw metadata from getID3.
3644       */
3645      return apply_filters( 'wp_read_video_metadata', $metadata, $file, $file_format, $data );
3646  }
3647  
3648  /**
3649   * Retrieve metadata from an audio file's ID3 tags.
3650   *
3651   * @since 3.6.0
3652   *
3653   * @param string $file Path to file.
3654   * @return array|false Returns array of metadata, if found.
3655   */
3656  function wp_read_audio_metadata( $file ) {
3657      if ( ! file_exists( $file ) ) {
3658          return false;
3659      }
3660  
3661      $metadata = array();
3662  
3663      if ( ! defined( 'GETID3_TEMP_DIR' ) ) {
3664          define( 'GETID3_TEMP_DIR', get_temp_dir() );
3665      }
3666  
3667      if ( ! class_exists( 'getID3', false ) ) {
3668          require ABSPATH . WPINC . '/ID3/getid3.php';
3669      }
3670  
3671      $id3  = new getID3();
3672      $data = $id3->analyze( $file );
3673  
3674      if ( ! empty( $data['audio'] ) ) {
3675          unset( $data['audio']['streams'] );
3676          $metadata = $data['audio'];
3677      }
3678  
3679      if ( ! empty( $data['fileformat'] ) ) {
3680          $metadata['fileformat'] = $data['fileformat'];
3681      }
3682  
3683      if ( ! empty( $data['filesize'] ) ) {
3684          $metadata['filesize'] = (int) $data['filesize'];
3685      }
3686  
3687      if ( ! empty( $data['mime_type'] ) ) {
3688          $metadata['mime_type'] = $data['mime_type'];
3689      }
3690  
3691      if ( ! empty( $data['playtime_seconds'] ) ) {
3692          $metadata['length'] = (int) round( $data['playtime_seconds'] );
3693      }
3694  
3695      if ( ! empty( $data['playtime_string'] ) ) {
3696          $metadata['length_formatted'] = $data['playtime_string'];
3697      }
3698  
3699      if ( empty( $metadata['created_timestamp'] ) ) {
3700          $created_timestamp = wp_get_media_creation_timestamp( $data );
3701  
3702          if ( false !== $created_timestamp ) {
3703              $metadata['created_timestamp'] = $created_timestamp;
3704          }
3705      }
3706  
3707      wp_add_id3_tag_data( $metadata, $data );
3708  
3709      return $metadata;
3710  }
3711  
3712  /**
3713   * Parse creation date from media metadata.
3714   *
3715   * The getID3 library doesn't have a standard method for getting creation dates,
3716   * so the location of this data can vary based on the MIME type.
3717   *
3718   * @since 4.9.0
3719   *
3720   * @link https://github.com/JamesHeinrich/getID3/blob/master/structure.txt
3721   *
3722   * @param array $metadata The metadata returned by getID3::analyze().
3723   * @return int|false A UNIX timestamp for the media's creation date if available
3724   *                   or a boolean FALSE if a timestamp could not be determined.
3725   */
3726  function wp_get_media_creation_timestamp( $metadata ) {
3727      $creation_date = false;
3728  
3729      if ( empty( $metadata['fileformat'] ) ) {
3730          return $creation_date;
3731      }
3732  
3733      switch ( $metadata['fileformat'] ) {
3734          case 'asf':
3735              if ( isset( $metadata['asf']['file_properties_object']['creation_date_unix'] ) ) {
3736                  $creation_date = (int) $metadata['asf']['file_properties_object']['creation_date_unix'];
3737              }
3738              break;
3739  
3740          case 'matroska':
3741          case 'webm':
3742              if ( isset( $metadata['matroska']['comments']['creation_time']['0'] ) ) {
3743                  $creation_date = strtotime( $metadata['matroska']['comments']['creation_time']['0'] );
3744              } elseif ( isset( $metadata['matroska']['info']['0']['DateUTC_unix'] ) ) {
3745                  $creation_date = (int) $metadata['matroska']['info']['0']['DateUTC_unix'];
3746              }
3747              break;
3748  
3749          case 'quicktime':
3750          case 'mp4':
3751              if ( isset( $metadata['quicktime']['moov']['subatoms']['0']['creation_time_unix'] ) ) {
3752                  $creation_date = (int) $metadata['quicktime']['moov']['subatoms']['0']['creation_time_unix'];
3753              }
3754              break;
3755      }
3756  
3757      return $creation_date;
3758  }
3759  
3760  /**
3761   * Encapsulates the logic for Attach/Detach actions.
3762   *
3763   * @since 4.2.0
3764   *
3765   * @global wpdb $wpdb WordPress database abstraction object.
3766   *
3767   * @param int    $parent_id Attachment parent ID.
3768   * @param string $action    Optional. Attach/detach action. Accepts 'attach' or 'detach'.
3769   *                          Default 'attach'.
3770   */
3771  function wp_media_attach_action( $parent_id, $action = 'attach' ) {
3772      global $wpdb;
3773  
3774      if ( ! $parent_id ) {
3775          return;
3776      }
3777  
3778      if ( ! current_user_can( 'edit_post', $parent_id ) ) {
3779          wp_die( __( 'Sorry, you are not allowed to edit this post.' ) );
3780      }
3781  
3782      $ids = array();
3783  
3784      foreach ( (array) $_REQUEST['media'] as $attachment_id ) {
3785          $attachment_id = (int) $attachment_id;
3786  
3787          if ( ! current_user_can( 'edit_post', $attachment_id ) ) {
3788              continue;
3789          }
3790  
3791          $ids[] = $attachment_id;
3792      }
3793  
3794      if ( ! empty( $ids ) ) {
3795          $ids_string = implode( ',', $ids );
3796  
3797          if ( 'attach' === $action ) {
3798              $result = $wpdb->query( $wpdb->prepare( "UPDATE $wpdb->posts SET post_parent = %d WHERE post_type = 'attachment' AND ID IN ( $ids_string )", $parent_id ) );
3799          } else {
3800              $result = $wpdb->query( "UPDATE $wpdb->posts SET post_parent = 0 WHERE post_type = 'attachment' AND ID IN ( $ids_string )" );
3801          }
3802      }
3803  
3804      if ( isset( $result ) ) {
3805          foreach ( $ids as $attachment_id ) {
3806              /**
3807               * Fires when media is attached or detached from a post.
3808               *
3809               * @since 5.5.0
3810               *
3811               * @param string $action        Attach/detach action. Accepts 'attach' or 'detach'.
3812               * @param int    $attachment_id The attachment ID.
3813               * @param int    $parent_id     Attachment parent ID.
3814               */
3815              do_action( 'wp_media_attach_action', $action, $attachment_id, $parent_id );
3816  
3817              clean_attachment_cache( $attachment_id );
3818          }
3819  
3820          $location = 'upload.php';
3821          $referer  = wp_get_referer();
3822  
3823          if ( $referer ) {
3824              if ( false !== strpos( $referer, 'upload.php' ) ) {
3825                  $location = remove_query_arg( array( 'attached', 'detach' ), $referer );
3826              }
3827          }
3828  
3829          $key      = 'attach' === $action ? 'attached' : 'detach';
3830          $location = add_query_arg( array( $key => $result ), $location );
3831  
3832          wp_redirect( $location );
3833          exit;
3834      }
3835  }


Generated: Fri Apr 23 01:00:05 2021 Cross-referenced by PHPXref 0.7.1