Added wordpress

1 files changed, 3717 insertions, 0 deletions

diff --git a/srcs/wordpress/wp-admin/includes/media.php b/srcs/wordpress/wp-admin/includes/media.php
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+++ b/srcs/wordpress/wp-admin/includes/media.php
@@ -0,0 +1,3717 @@
+<?php
+/**
+ * WordPress Administration Media API.
+ *
+ * @package WordPress
+ * @subpackage Administration
+ */
+
+/**
+ * Defines the default media upload tabs
+ *
+ * @since 2.5.0
+ *
+ * @return array default tabs
+ */
+function media_upload_tabs() {
+	$_default_tabs = array(
+		'type'     => __( 'From Computer' ), // handler action suffix => tab text
+		'type_url' => __( 'From URL' ),
+		'gallery'  => __( 'Gallery' ),
+		'library'  => __( 'Media Library' ),
+	);
+
+	/**
+	 * Filters the available tabs in the legacy (pre-3.5.0) media popup.
+	 *
+	 * @since 2.5.0
+	 *
+	 * @param array $_default_tabs An array of media tabs.
+	 */
+	return apply_filters( 'media_upload_tabs', $_default_tabs );
+}
+
+/**
+ * Adds the gallery tab back to the tabs array if post has image attachments
+ *
+ * @since 2.5.0
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
+ *
+ * @param array $tabs
+ * @return array $tabs with gallery if post has image attachment
+ */
+function update_gallery_tab( $tabs ) {
+	global $wpdb;
+
+	if ( ! isset( $_REQUEST['post_id'] ) ) {
+		unset( $tabs['gallery'] );
+		return $tabs;
+	}
+
+	$post_id = intval( $_REQUEST['post_id'] );
+
+	if ( $post_id ) {
+		$attachments = intval( $wpdb->get_var( $wpdb->prepare( "SELECT count(*) FROM $wpdb->posts WHERE post_type = 'attachment' AND post_status != 'trash' AND post_parent = %d", $post_id ) ) );
+	}
+
+	if ( empty( $attachments ) ) {
+		unset( $tabs['gallery'] );
+		return $tabs;
+	}
+
+	/* translators: %s: Number of attachments. */
+	$tabs['gallery'] = sprintf( __( 'Gallery (%s)' ), "<span id='attachments-count'>$attachments</span>" );
+
+	return $tabs;
+}
+
+/**
+ * Outputs the legacy media upload tabs UI.
+ *
+ * @since 2.5.0
+ *
+ * @global string $redir_tab
+ */
+function the_media_upload_tabs() {
+	global $redir_tab;
+	$tabs    = media_upload_tabs();
+	$default = 'type';
+
+	if ( ! empty( $tabs ) ) {
+		echo "<ul id='sidemenu'>\n";
+
+		if ( isset( $redir_tab ) && array_key_exists( $redir_tab, $tabs ) ) {
+			$current = $redir_tab;
+		} elseif ( isset( $_GET['tab'] ) && array_key_exists( $_GET['tab'], $tabs ) ) {
+			$current = $_GET['tab'];
+		} else {
+			/** This filter is documented in wp-admin/media-upload.php */
+			$current = apply_filters( 'media_upload_default_tab', $default );
+		}
+
+		foreach ( $tabs as $callback => $text ) {
+			$class = '';
+
+			if ( $current == $callback ) {
+				$class = " class='current'";
+			}
+
+			$href = add_query_arg(
+				array(
+					'tab'            => $callback,
+					's'              => false,
+					'paged'          => false,
+					'post_mime_type' => false,
+					'm'              => false,
+				)
+			);
+			$link = "<a href='" . esc_url( $href ) . "'$class>$text</a>";
+			echo "\t<li id='" . esc_attr( "tab-$callback" ) . "'>$link</li>\n";
+		}
+
+		echo "</ul>\n";
+	}
+}
+
+/**
+ * Retrieves the image HTML to send to the editor.
+ *
+ * @since 2.5.0
+ *
+ * @param int          $id      Image attachment id.
+ * @param string       $caption Image caption.
+ * @param string       $title   Image title attribute.
+ * @param string       $align   Image CSS alignment property.
+ * @param string       $url     Optional. Image src URL. Default empty.
+ * @param bool|string  $rel     Optional. Value for rel attribute or whether to add a default value. Default false.
+ * @param string|array $size    Optional. Image size. Accepts any valid image size, or an array of width
+ *                              and height values in pixels (in that order). Default 'medium'.
+ * @param string       $alt     Optional. Image alt attribute. Default empty.
+ * @return string The HTML output to insert into the editor.
+ */
+function get_image_send_to_editor( $id, $caption, $title, $align, $url = '', $rel = false, $size = 'medium', $alt = '' ) {
+
+	$html = get_image_tag( $id, $alt, '', $align, $size );
+
+	if ( $rel ) {
+		if ( is_string( $rel ) ) {
+			$rel = ' rel="' . esc_attr( $rel ) . '"';
+		} else {
+			$rel = ' rel="attachment wp-att-' . intval( $id ) . '"';
+		}
+	} else {
+		$rel = '';
+	}
+
+	if ( $url ) {
+		$html = '<a href="' . esc_attr( $url ) . '"' . $rel . '>' . $html . '</a>';
+	}
+
+	/**
+	 * Filters the image HTML markup to send to the editor when inserting an image.
+	 *
+	 * @since 2.5.0
+	 *
+	 * @param string       $html    The image HTML markup to send.
+	 * @param int          $id      The attachment id.
+	 * @param string       $caption The image caption.
+	 * @param string       $title   The image title.
+	 * @param string       $align   The image alignment.
+	 * @param string       $url     The image source URL.
+	 * @param string|array $size    Size of image. Image size or array of width and height values
+	 *                              (in that order). Default 'medium'.
+	 * @param string       $alt     The image alternative, or alt, text.
+	 */
+	$html = apply_filters( 'image_send_to_editor', $html, $id, $caption, $title, $align, $url, $size, $alt );
+
+	return $html;
+}
+
+/**
+ * Adds image shortcode with caption to editor
+ *
+ * @since 2.6.0
+ *
+ * @param string  $html    The image HTML markup to send.
+ * @param integer $id      Image attachment ID.
+ * @param string  $caption Image caption.
+ * @param string  $title   Image title attribute (not used).
+ * @param string  $align   Image CSS alignment property.
+ * @param string  $url     Image source URL (not used).
+ * @param string  $size    Image size (`thumbnail`, `medium`, `large`, `full`, or added with `add_image_size()`) (not used).
+ * @param string  $alt     Image `alt` attribute (not used).
+ * @return string The image HTML markup with caption shortcode.
+ */
+function image_add_caption( $html, $id, $caption, $title, $align, $url, $size, $alt = '' ) {
+
+	/**
+	 * Filters the caption text.
+	 *
+	 * Note: If the caption text is empty, the caption shortcode will not be appended
+	 * to the image HTML when inserted into the editor.
+	 *
+	 * Passing an empty value also prevents the {@see 'image_add_caption_shortcode'}
+	 * Filters from being evaluated at the end of image_add_caption().
+	 *
+	 * @since 4.1.0
+	 *
+	 * @param string $caption The original caption text.
+	 * @param int    $id      The attachment ID.
+	 */
+	$caption = apply_filters( 'image_add_caption_text', $caption, $id );
+
+	/**
+	 * Filters whether to disable captions.
+	 *
+	 * Prevents image captions from being appended to image HTML when inserted into the editor.
+	 *
+	 * @since 2.6.0
+	 *
+	 * @param bool $bool Whether to disable appending captions. Returning true to the filter
+	 *                   will disable captions. Default empty string.
+	 */
+	if ( empty( $caption ) || apply_filters( 'disable_captions', '' ) ) {
+		return $html;
+	}
+
+	$id = ( 0 < (int) $id ) ? 'attachment_' . $id : '';
+
+	if ( ! preg_match( '/width=["\']([0-9]+)/', $html, $matches ) ) {
+		return $html;
+	}
+
+	$width = $matches[1];
+
+	$caption = str_replace( array( "\r\n", "\r" ), "\n", $caption );
+	$caption = preg_replace_callback( '/<[a-zA-Z0-9]+(?: [^<>]+>)*/', '_cleanup_image_add_caption', $caption );
+
+	// Convert any remaining line breaks to <br>.
+	$caption = preg_replace( '/[ \n\t]*\n[ \t]*/', '<br />', $caption );
+
+	$html = preg_replace( '/(class=["\'][^\'"]*)align(none|left|right|center)\s?/', '$1', $html );
+	if ( empty( $align ) ) {
+		$align = 'none';
+	}
+
+	$shcode = '[caption id="' . $id . '" align="align' . $align . '" width="' . $width . '"]' . $html . ' ' . $caption . '[/caption]';
+
+	/**
+	 * Filters the image HTML markup including the caption shortcode.
+	 *
+	 * @since 2.6.0
+	 *
+	 * @param string $shcode The image HTML markup with caption shortcode.
+	 * @param string $html   The image HTML markup.
+	 */
+	return apply_filters( 'image_add_caption_shortcode', $shcode, $html );
+}
+
+/**
+ * Private preg_replace callback used in image_add_caption()
+ *
+ * @access private
+ * @since 3.4.0
+ */
+function _cleanup_image_add_caption( $matches ) {
+	// Remove any line breaks from inside the tags.
+	return preg_replace( '/[\r\n\t]+/', ' ', $matches[0] );
+}
+
+/**
+ * Adds image html to editor
+ *
+ * @since 2.5.0
+ *
+ * @param string $html
+ */
+function media_send_to_editor( $html ) {
+	?>
+	<script type="text/javascript">
+	var win = window.dialogArguments || opener || parent || top;
+	win.send_to_editor( <?php echo wp_json_encode( $html ); ?> );
+	</script>
+	<?php
+	exit;
+}
+
+/**
+ * Save a file submitted from a POST request and create an attachment post for it.
+ *
+ * @since 2.5.0
+ *
+ * @param string $file_id   Index of the `$_FILES` array that the file was sent. Required.
+ * @param int    $post_id   The post ID of a post to attach the media item to. Required, but can
+ *                          be set to 0, creating a media item that has no relationship to a post.
+ * @param array  $post_data Overwrite some of the attachment. Optional.
+ * @param array  $overrides Override the wp_handle_upload() behavior. Optional.
+ * @return int|WP_Error ID of the attachment or a WP_Error object on failure.
+ */
+function media_handle_upload( $file_id, $post_id, $post_data = array(), $overrides = array( 'test_form' => false ) ) {
+	$time = current_time( 'mysql' );
+	$post = get_post( $post_id );
+
+	if ( $post ) {
+		// The post date doesn't usually matter for pages, so don't backdate this upload.
+		if ( 'page' !== $post->post_type && substr( $post->post_date, 0, 4 ) > 0 ) {
+			$time = $post->post_date;
+		}
+	}
+
+	$file = wp_handle_upload( $_FILES[ $file_id ], $overrides, $time );
+
+	if ( isset( $file['error'] ) ) {
+		return new WP_Error( 'upload_error', $file['error'] );
+	}
+
+	$name = $_FILES[ $file_id ]['name'];
+	$ext  = pathinfo( $name, PATHINFO_EXTENSION );
+	$name = wp_basename( $name, ".$ext" );
+
+	$url     = $file['url'];
+	$type    = $file['type'];
+	$file    = $file['file'];
+	$title   = sanitize_text_field( $name );
+	$content = '';
+	$excerpt = '';
+
+	if ( preg_match( '#^audio#', $type ) ) {
+		$meta = wp_read_audio_metadata( $file );
+
+		if ( ! empty( $meta['title'] ) ) {
+			$title = $meta['title'];
+		}
+
+		if ( ! empty( $title ) ) {
+
+			if ( ! empty( $meta['album'] ) && ! empty( $meta['artist'] ) ) {
+				/* translators: 1: Audio track title, 2: Album title, 3: Artist name. */
+				$content .= sprintf( __( '"%1$s" from %2$s by %3$s.' ), $title, $meta['album'], $meta['artist'] );
+			} elseif ( ! empty( $meta['album'] ) ) {
+				/* translators: 1: Audio track title, 2: Album title. */
+				$content .= sprintf( __( '"%1$s" from %2$s.' ), $title, $meta['album'] );
+			} elseif ( ! empty( $meta['artist'] ) ) {
+				/* translators: 1: Audio track title, 2: Artist name. */
+				$content .= sprintf( __( '"%1$s" by %2$s.' ), $title, $meta['artist'] );
+			} else {
+				/* translators: %s: Audio track title. */
+				$content .= sprintf( __( '"%s".' ), $title );
+			}
+		} elseif ( ! empty( $meta['album'] ) ) {
+
+			if ( ! empty( $meta['artist'] ) ) {
+				/* translators: 1: Audio album title, 2: Artist name. */
+				$content .= sprintf( __( '%1$s by %2$s.' ), $meta['album'], $meta['artist'] );
+			} else {
+				$content .= $meta['album'] . '.';
+			}
+		} elseif ( ! empty( $meta['artist'] ) ) {
+
+			$content .= $meta['artist'] . '.';
+
+		}
+
+		if ( ! empty( $meta['year'] ) ) {
+			/* translators: Audio file track information. %d: Year of audio track release. */
+			$content .= ' ' . sprintf( __( 'Released: %d.' ), $meta['year'] );
+		}
+
+		if ( ! empty( $meta['track_number'] ) ) {
+			$track_number = explode( '/', $meta['track_number'] );
+
+			if ( isset( $track_number[1] ) ) {
+				/* translators: Audio file track information. 1: Audio track number, 2: Total audio tracks. */
+				$content .= ' ' . sprintf( __( 'Track %1$s of %2$s.' ), number_format_i18n( $track_number[0] ), number_format_i18n( $track_number[1] ) );
+			} else {
+				/* translators: Audio file track information. %s: Audio track number. */
+				$content .= ' ' . sprintf( __( 'Track %s.' ), number_format_i18n( $track_number[0] ) );
+			}
+		}
+
+		if ( ! empty( $meta['genre'] ) ) {
+			/* translators: Audio file genre information. %s: Audio genre name. */
+			$content .= ' ' . sprintf( __( 'Genre: %s.' ), $meta['genre'] );
+		}
+
+		// Use image exif/iptc data for title and caption defaults if possible.
+	} elseif ( 0 === strpos( $type, 'image/' ) ) {
+		$image_meta = wp_read_image_metadata( $file );
+
+		if ( $image_meta ) {
+			if ( trim( $image_meta['title'] ) && ! is_numeric( sanitize_title( $image_meta['title'] ) ) ) {
+				$title = $image_meta['title'];
+			}
+
+			if ( trim( $image_meta['caption'] ) ) {
+				$excerpt = $image_meta['caption'];
+			}
+		}
+	}
+
+	// Construct the attachment array
+	$attachment = array_merge(
+		array(
+			'post_mime_type' => $type,
+			'guid'           => $url,
+			'post_parent'    => $post_id,
+			'post_title'     => $title,
+			'post_content'   => $content,
+			'post_excerpt'   => $excerpt,
+		),
+		$post_data
+	);
+
+	// This should never be set as it would then overwrite an existing attachment.
+	unset( $attachment['ID'] );
+
+	// Save the data
+	$attachment_id = wp_insert_attachment( $attachment, $file, $post_id, true );
+
+	if ( ! is_wp_error( $attachment_id ) ) {
+		// Set a custom header with the attachment_id.
+		// Used by the browser/client to resume creating image sub-sizes after a PHP fatal error.
+		if ( ! headers_sent() ) {
+			header( 'X-WP-Upload-Attachment-ID: ' . $attachment_id );
+		}
+
+		// The image sub-sizes are created during wp_generate_attachment_metadata().
+		// This is generally slow and may cause timeouts or out of memory errors.
+		wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) );
+	}
+
+	return $attachment_id;
+}
+
+/**
+ * Handles a side-loaded file in the same way as an uploaded file is handled by media_handle_upload().
+ *
+ * @since 2.6.0
+ * @since 5.3.0 The `$post_id` parameter was made optional.
+ *
+ * @param array  $file_array Array similar to a `$_FILES` upload array.
+ * @param int    $post_id    Optional. The post ID the media is associated with.
+ * @param string $desc       Optional. Description of the side-loaded file. Default null.
+ * @param array  $post_data  Optional. Post data to override. Default empty array.
+ * @return int|WP_Error The ID of the attachment or a WP_Error on failure.
+ */
+function media_handle_sideload( $file_array, $post_id = 0, $desc = null, $post_data = array() ) {
+	$overrides = array( 'test_form' => false );
+
+	$time = current_time( 'mysql' );
+	$post = get_post( $post_id );
+
+	if ( $post ) {
+		if ( substr( $post->post_date, 0, 4 ) > 0 ) {
+			$time = $post->post_date;
+		}
+	}
+
+	$file = wp_handle_sideload( $file_array, $overrides, $time );
+
+	if ( isset( $file['error'] ) ) {
+		return new WP_Error( 'upload_error', $file['error'] );
+	}
+
+	$url     = $file['url'];
+	$type    = $file['type'];
+	$file    = $file['file'];
+	$title   = preg_replace( '/\.[^.]+$/', '', wp_basename( $file ) );
+	$content = '';
+
+	// Use image exif/iptc data for title and caption defaults if possible.
+	$image_meta = wp_read_image_metadata( $file );
+
+	if ( $image_meta ) {
+		if ( trim( $image_meta['title'] ) && ! is_numeric( sanitize_title( $image_meta['title'] ) ) ) {
+			$title = $image_meta['title'];
+		}
+
+		if ( trim( $image_meta['caption'] ) ) {
+			$content = $image_meta['caption'];
+		}
+	}
+
+	if ( isset( $desc ) ) {
+		$title = $desc;
+	}
+
+	// Construct the attachment array.
+	$attachment = array_merge(
+		array(
+			'post_mime_type' => $type,
+			'guid'           => $url,
+			'post_parent'    => $post_id,
+			'post_title'     => $title,
+			'post_content'   => $content,
+		),
+		$post_data
+	);
+
+	// This should never be set as it would then overwrite an existing attachment.
+	unset( $attachment['ID'] );
+
+	// Save the attachment metadata
+	$attachment_id = wp_insert_attachment( $attachment, $file, $post_id, true );
+
+	if ( ! is_wp_error( $attachment_id ) ) {
+		wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) );
+	}
+
+	return $attachment_id;
+}
+
+/**
+ * Outputs the iframe to display the media upload page.
+ *
+ * @since 2.5.0
+ * @since 5.3.0 Formalized the existing and already documented `...$args` parameter
+ *              by adding it to the function signature.
+ *
+ * @global int $body_id
+ *
+ * @param callable $content_func Function that outputs the content.
+ * @param mixed    ...$args      Optional additional parameters to pass to the callback function when it's called.
+ */
+function wp_iframe( $content_func, ...$args ) {
+	_wp_admin_html_begin();
+	?>
+	<title><?php bloginfo( 'name' ); ?> &rsaquo; <?php _e( 'Uploads' ); ?> &#8212; <?php _e( 'WordPress' ); ?></title>
+	<?php
+
+	wp_enqueue_style( 'colors' );
+	// Check callback name for 'media'
+	if (
+		( is_array( $content_func ) && ! empty( $content_func[1] ) && 0 === strpos( (string) $content_func[1], 'media' ) ) ||
+		( ! is_array( $content_func ) && 0 === strpos( $content_func, 'media' ) )
+	) {
+		wp_enqueue_style( 'deprecated-media' );
+	}
+	wp_enqueue_style( 'ie' );
+
+	?>
+	<script type="text/javascript">
+	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();}}};
+	var ajaxurl = '<?php echo admin_url( 'admin-ajax.php', 'relative' ); ?>', pagenow = 'media-upload-popup', adminpage = 'media-upload-popup',
+	isRtl = <?php echo (int) is_rtl(); ?>;
+	</script>
+	<?php
+	/** This action is documented in wp-admin/admin-header.php */
+	do_action( 'admin_enqueue_scripts', 'media-upload-popup' );
+
+	/**
+	 * Fires when admin styles enqueued for the legacy (pre-3.5.0) media upload popup are printed.
+	 *
+	 * @since 2.9.0
+	 */
+	do_action( 'admin_print_styles-media-upload-popup' );  // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
+
+	/** This action is documented in wp-admin/admin-header.php */
+	do_action( 'admin_print_styles' );
+
+	/**
+	 * Fires when admin scripts enqueued for the legacy (pre-3.5.0) media upload popup are printed.
+	 *
+	 * @since 2.9.0
+	 */
+	do_action( 'admin_print_scripts-media-upload-popup' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
+
+	/** This action is documented in wp-admin/admin-header.php */
+	do_action( 'admin_print_scripts' );
+
+	/**
+	 * Fires when scripts enqueued for the admin header for the legacy (pre-3.5.0)
+	 * media upload popup are printed.
+	 *
+	 * @since 2.9.0
+	 */
+	do_action( 'admin_head-media-upload-popup' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
+
+	/** This action is documented in wp-admin/admin-header.php */
+	do_action( 'admin_head' );
+
+	if ( is_string( $content_func ) ) {
+		/**
+		 * Fires in the admin header for each specific form tab in the legacy
+		 * (pre-3.5.0) media upload popup.
+		 *
+		 * The dynamic portion of the hook, `$content_func`, refers to the form
+		 * callback for the media upload type. Possible values include
+		 * 'media_upload_type_form', 'media_upload_type_url_form', and
+		 * 'media_upload_library_form'.
+		 *
+		 * @since 2.5.0
+		 */
+		do_action( "admin_head_{$content_func}" );
+	}
+
+	$body_id_attr = '';
+
+	if ( isset( $GLOBALS['body_id'] ) ) {
+		$body_id_attr = ' id="' . $GLOBALS['body_id'] . '"';
+	}
+
+	?>
+	</head>
+	<body<?php echo $body_id_attr; ?> class="wp-core-ui no-js">
+	<script type="text/javascript">
+	document.body.className = document.body.className.replace('no-js', 'js');
+	</script>
+	<?php
+
+	call_user_func_array( $content_func, $args );
+
+	/** This action is documented in wp-admin/admin-footer.php */
+	do_action( 'admin_print_footer_scripts' );
+
+	?>
+	<script type="text/javascript">if(typeof wpOnload=='function')wpOnload();</script>
+	</body>
+	</html>
+	<?php
+}
+
+/**
+ * Adds the media button to the editor
+ *
+ * @since 2.5.0
+ *
+ * @global int $post_ID
+ *
+ * @staticvar int $instance
+ *
+ * @param string $editor_id
+ */
+function media_buttons( $editor_id = 'content' ) {
+	static $instance = 0;
+	$instance++;
+
+	$post = get_post();
+
+	if ( ! $post && ! empty( $GLOBALS['post_ID'] ) ) {
+		$post = $GLOBALS['post_ID'];
+	}
+
+	wp_enqueue_media( array( 'post' => $post ) );
+
+	$img = '<span class="wp-media-buttons-icon"></span> ';
+
+	$id_attribute = $instance === 1 ? ' id="insert-media-button"' : '';
+
+	printf(
+		'<button type="button"%s class="button insert-media add_media" data-editor="%s">%s</button>',
+		$id_attribute,
+		esc_attr( $editor_id ),
+		$img . __( 'Add Media' )
+	);
+
+	/**
+	 * Filters the legacy (pre-3.5.0) media buttons.
+	 *
+	 * Use {@see 'media_buttons'} action instead.
+	 *
+	 * @since 2.5.0
+	 * @deprecated 3.5.0 Use {@see 'media_buttons'} action instead.
+	 *
+	 * @param string $string Media buttons context. Default empty.
+	 */
+	$legacy_filter = apply_filters( 'media_buttons_context', '' );
+
+	if ( $legacy_filter ) {
+		// #WP22559. Close <a> if a plugin started by closing <a> to open their own <a> tag.
+		if ( 0 === stripos( trim( $legacy_filter ), '</a>' ) ) {
+			$legacy_filter .= '</a>';
+		}
+		echo $legacy_filter;
+	}
+}
+
+/**
+ * @global int $post_ID
+ * @param string $type
+ * @param int $post_id
+ * @param string $tab
+ * @return string
+ */
+function get_upload_iframe_src( $type = null, $post_id = null, $tab = null ) {
+	global $post_ID;
+
+	if ( empty( $post_id ) ) {
+		$post_id = $post_ID;
+	}
+
+	$upload_iframe_src = add_query_arg( 'post_id', (int) $post_id, admin_url( 'media-upload.php' ) );
+
+	if ( $type && 'media' != $type ) {
+		$upload_iframe_src = add_query_arg( 'type', $type, $upload_iframe_src );
+	}
+
+	if ( ! empty( $tab ) ) {
+		$upload_iframe_src = add_query_arg( 'tab', $tab, $upload_iframe_src );
+	}
+
+	/**
+	 * Filters the upload iframe source URL for a specific media type.
+	 *
+	 * The dynamic portion of the hook name, `$type`, refers to the type
+	 * of media uploaded.
+	 *
+	 * @since 3.0.0
+	 *
+	 * @param string $upload_iframe_src The upload iframe source URL by type.
+	 */
+	$upload_iframe_src = apply_filters( "{$type}_upload_iframe_src", $upload_iframe_src );
+
+	return add_query_arg( 'TB_iframe', true, $upload_iframe_src );
+}
+
+/**
+ * Handles form submissions for the legacy media uploader.
+ *
+ * @since 2.5.0
+ *
+ * @return mixed void|object WP_Error on failure
+ */
+function media_upload_form_handler() {
+	check_admin_referer( 'media-form' );
+
+	$errors = null;
+
+	if ( isset( $_POST['send'] ) ) {
+		$keys    = array_keys( $_POST['send'] );
+		$send_id = (int) reset( $keys );
+	}
+
+	if ( ! empty( $_POST['attachments'] ) ) {
+		foreach ( $_POST['attachments'] as $attachment_id => $attachment ) {
+			$post  = get_post( $attachment_id, ARRAY_A );
+			$_post = $post;
+
+			if ( ! current_user_can( 'edit_post', $attachment_id ) ) {
+				continue;
+			}
+
+			if ( isset( $attachment['post_content'] ) ) {
+				$post['post_content'] = $attachment['post_content'];
+			}
+
+			if ( isset( $attachment['post_title'] ) ) {
+				$post['post_title'] = $attachment['post_title'];
+			}
+
+			if ( isset( $attachment['post_excerpt'] ) ) {
+				$post['post_excerpt'] = $attachment['post_excerpt'];
+			}
+
+			if ( isset( $attachment['menu_order'] ) ) {
+				$post['menu_order'] = $attachment['menu_order'];
+			}
+
+			if ( isset( $send_id ) && $attachment_id == $send_id ) {
+				if ( isset( $attachment['post_parent'] ) ) {
+					$post['post_parent'] = $attachment['post_parent'];
+				}
+			}
+
+			/**
+			 * Filters the attachment fields to be saved.
+			 *
+			 * @since 2.5.0
+			 *
+			 * @see wp_get_attachment_metadata()
+			 *
+			 * @param array $post       An array of post data.
+			 * @param array $attachment An array of attachment metadata.
+			 */
+			$post = apply_filters( 'attachment_fields_to_save', $post, $attachment );
+
+			if ( isset( $attachment['image_alt'] ) ) {
+				$image_alt = wp_unslash( $attachment['image_alt'] );
+
+				if ( $image_alt != get_post_meta( $attachment_id, '_wp_attachment_image_alt', true ) ) {
+					$image_alt = wp_strip_all_tags( $image_alt, true );
+
+					// Update_meta expects slashed.
+					update_post_meta( $attachment_id, '_wp_attachment_image_alt', wp_slash( $image_alt ) );
+				}
+			}
+
+			if ( isset( $post['errors'] ) ) {
+				$errors[ $attachment_id ] = $post['errors'];
+				unset( $post['errors'] );
+			}
+
+			if ( $post != $_post ) {
+				wp_update_post( $post );
+			}
+
+			foreach ( get_attachment_taxonomies( $post ) as $t ) {
+				if ( isset( $attachment[ $t ] ) ) {
+					wp_set_object_terms( $attachment_id, array_map( 'trim', preg_split( '/,+/', $attachment[ $t ] ) ), $t, false );
+				}
+			}
+		}
+	}
+
+	if ( isset( $_POST['insert-gallery'] ) || isset( $_POST['update-gallery'] ) ) {
+		?>
+		<script type="text/javascript">
+		var win = window.dialogArguments || opener || parent || top;
+		win.tb_remove();
+		</script>
+		<?php
+
+		exit;
+	}
+
+	if ( isset( $send_id ) ) {
+		$attachment = wp_unslash( $_POST['attachments'][ $send_id ] );
+		$html       = isset( $attachment['post_title'] ) ? $attachment['post_title'] : '';
+
+		if ( ! empty( $attachment['url'] ) ) {
+			$rel = '';
+
+			if ( strpos( $attachment['url'], 'attachment_id' ) || get_attachment_link( $send_id ) == $attachment['url'] ) {
+				$rel = " rel='attachment wp-att-" . esc_attr( $send_id ) . "'";
+			}
+
+			$html = "<a href='{$attachment['url']}'$rel>$html</a>";
+		}
+
+		/**
+		 * Filters the HTML markup for a media item sent to the editor.
+		 *
+		 * @since 2.5.0
+		 *
+		 * @see wp_get_attachment_metadata()
+		 *
+		 * @param string $html       HTML markup for a media item sent to the editor.
+		 * @param int    $send_id    The first key from the $_POST['send'] data.
+		 * @param array  $attachment Array of attachment metadata.
+		 */
+		$html = apply_filters( 'media_send_to_editor', $html, $send_id, $attachment );
+
+		return media_send_to_editor( $html );
+	}
+
+	return $errors;
+}
+
+/**
+ * Handles the process of uploading media.
+ *
+ * @since 2.5.0
+ *
+ * @return null|string
+ */
+function wp_media_upload_handler() {
+	$errors = array();
+	$id     = 0;
+
+	if ( isset( $_POST['html-upload'] ) && ! empty( $_FILES ) ) {
+		check_admin_referer( 'media-form' );
+		// Upload File button was clicked
+		$id = media_handle_upload( 'async-upload', $_REQUEST['post_id'] );
+		unset( $_FILES );
+
+		if ( is_wp_error( $id ) ) {
+			$errors['upload_error'] = $id;
+			$id                     = false;
+		}
+	}
+
+	if ( ! empty( $_POST['insertonlybutton'] ) ) {
+		$src = $_POST['src'];
+
+		if ( ! empty( $src ) && ! strpos( $src, '://' ) ) {
+			$src = "http://$src";
+		}
+
+		if ( isset( $_POST['media_type'] ) && 'image' != $_POST['media_type'] ) {
+			$title = esc_html( wp_unslash( $_POST['title'] ) );
+			if ( empty( $title ) ) {
+				$title = esc_html( wp_basename( $src ) );
+			}
+
+			if ( $title && $src ) {
+				$html = "<a href='" . esc_url( $src ) . "'>$title</a>";
+			}
+
+			$type = 'file';
+			$ext  = preg_replace( '/^.+?\.([^.]+)$/', '$1', $src );
+
+			if ( $ext ) {
+				$ext_type = wp_ext2type( $ext );
+				if ( 'audio' == $ext_type || 'video' == $ext_type ) {
+					$type = $ext_type;
+				}
+			}
+
+			/**
+			 * Filters the URL sent to the editor for a specific media type.
+			 *
+			 * The dynamic portion of the hook name, `$type`, refers to the type
+			 * of media being sent.
+			 *
+			 * @since 3.3.0
+			 *
+			 * @param string $html  HTML markup sent to the editor.
+			 * @param string $src   Media source URL.
+			 * @param string $title Media title.
+			 */
+			$html = apply_filters( "{$type}_send_to_editor_url", $html, esc_url_raw( $src ), $title );
+		} else {
+			$align = '';
+			$alt   = esc_attr( wp_unslash( $_POST['alt'] ) );
+
+			if ( isset( $_POST['align'] ) ) {
+				$align = esc_attr( wp_unslash( $_POST['align'] ) );
+				$class = " class='align$align'";
+			}
+
+			if ( ! empty( $src ) ) {
+				$html = "<img src='" . esc_url( $src ) . "' alt='$alt'$class />";
+			}
+
+			/**
+			 * Filters the image URL sent to the editor.
+			 *
+			 * @since 2.8.0
+			 *
+			 * @param string $html  HTML markup sent to the editor for an image.
+			 * @param string $src   Image source URL.
+			 * @param string $alt   Image alternate, or alt, text.
+			 * @param string $align The image alignment. Default 'alignnone'. Possible values include
+			 *                      'alignleft', 'aligncenter', 'alignright', 'alignnone'.
+			 */
+			$html = apply_filters( 'image_send_to_editor_url', $html, esc_url_raw( $src ), $alt, $align );
+		}
+
+		return media_send_to_editor( $html );
+	}
+
+	if ( isset( $_POST['save'] ) ) {
+		$errors['upload_notice'] = __( 'Saved.' );
+		wp_enqueue_script( 'admin-gallery' );
+
+		return wp_iframe( 'media_upload_gallery_form', $errors );
+
+	} elseif ( ! empty( $_POST ) ) {
+		$return = media_upload_form_handler();
+
+		if ( is_string( $return ) ) {
+			return $return;
+		}
+
+		if ( is_array( $return ) ) {
+			$errors = $return;
+		}
+	}
+
+	if ( isset( $_GET['tab'] ) && $_GET['tab'] == 'type_url' ) {
+		$type = 'image';
+
+		if ( isset( $_GET['type'] ) && in_array( $_GET['type'], array( 'video', 'audio', 'file' ) ) ) {
+			$type = $_GET['type'];
+		}
+
+		return wp_iframe( 'media_upload_type_url_form', $type, $errors, $id );
+	}
+
+	return wp_iframe( 'media_upload_type_form', 'image', $errors, $id );
+}
+
+/**
+ * Downloads an image from the specified URL and attaches it to a post.
+ *
+ * @since 2.6.0
+ * @since 4.2.0 Introduced the `$return` parameter.
+ * @since 4.8.0 Introduced the 'id' option within the `$return` parameter.
+ * @since 5.3.0 The `$post_id` parameter was made optional.
+ *
+ * @param string $file    The URL of the image to download.
+ * @param int    $post_id Optional. The post ID the media is to be associated with.
+ * @param string $desc    Optional. Description of the image.
+ * @param string $return  Optional. Accepts 'html' (image tag html) or 'src' (URL), or 'id' (attachment ID). Default 'html'.
+ * @return string|WP_Error Populated HTML img tag on success, WP_Error object otherwise.
+ */
+function media_sideload_image( $file, $post_id = 0, $desc = null, $return = 'html' ) {
+	if ( ! empty( $file ) ) {
+
+		// Set variables for storage, fix file filename for query strings.
+		preg_match( '/[^\?]+\.(jpe?g|jpe|gif|png)\b/i', $file, $matches );
+
+		if ( ! $matches ) {
+			return new WP_Error( 'image_sideload_failed', __( 'Invalid image URL' ) );
+		}
+
+		$file_array         = array();
+		$file_array['name'] = wp_basename( $matches[0] );
+
+		// Download file to temp location.
+		$file_array['tmp_name'] = download_url( $file );
+
+		// If error storing temporarily, return the error.
+		if ( is_wp_error( $file_array['tmp_name'] ) ) {
+			return $file_array['tmp_name'];
+		}
+
+		// Do the validation and storage stuff.
+		$id = media_handle_sideload( $file_array, $post_id, $desc );
+
+		// If error storing permanently, unlink.
+		if ( is_wp_error( $id ) ) {
+			@unlink( $file_array['tmp_name'] );
+			return $id;
+			// If attachment id was requested, return it early.
+		} elseif ( $return === 'id' ) {
+			return $id;
+		}
+
+		$src = wp_get_attachment_url( $id );
+	}
+
+	// Finally, check to make sure the file has been saved, then return the HTML.
+	if ( ! empty( $src ) ) {
+		if ( $return === 'src' ) {
+			return $src;
+		}
+
+		$alt  = isset( $desc ) ? esc_attr( $desc ) : '';
+		$html = "<img src='$src' alt='$alt' />";
+
+		return $html;
+	} else {
+		return new WP_Error( 'image_sideload_failed' );
+	}
+}
+
+/**
+ * Retrieves the legacy media uploader form in an iframe.
+ *
+ * @since 2.5.0
+ *
+ * @return string|null
+ */
+function media_upload_gallery() {
+	$errors = array();
+
+	if ( ! empty( $_POST ) ) {
+		$return = media_upload_form_handler();
+
+		if ( is_string( $return ) ) {
+			return $return;
+		}
+
+		if ( is_array( $return ) ) {
+			$errors = $return;
+		}
+	}
+
+	wp_enqueue_script( 'admin-gallery' );
+	return wp_iframe( 'media_upload_gallery_form', $errors );
+}
+
+/**
+ * Retrieves the legacy media library form in an iframe.
+ *
+ * @since 2.5.0
+ *
+ * @return string|null
+ */
+function media_upload_library() {
+	$errors = array();
+
+	if ( ! empty( $_POST ) ) {
+		$return = media_upload_form_handler();
+
+		if ( is_string( $return ) ) {
+			return $return;
+		}
+		if ( is_array( $return ) ) {
+			$errors = $return;
+		}
+	}
+
+	return wp_iframe( 'media_upload_library_form', $errors );
+}
+
+/**
+ * Retrieve HTML for the image alignment radio buttons with the specified one checked.
+ *
+ * @since 2.7.0
+ *
+ * @param WP_Post $post
+ * @param string $checked
+ * @return string
+ */
+function image_align_input_fields( $post, $checked = '' ) {
+
+	if ( empty( $checked ) ) {
+		$checked = get_user_setting( 'align', 'none' );
+	}
+
+	$alignments = array(