/**
* Note: This file may contain artifacts of previous malicious infection.
* However, the dangerous code has been removed, and the file is now safe to use.
*/
/**
* Taxonomy API: Core category-specific template tags
*
* @package WordPress
* @subpackage Template
* @since 1.2.0
*/
/**
* Retrieves category link URL.
*
* @since 1.0.0
*
* @see get_term_link()
*
* @param int|object $category Category ID or object.
* @return string Link on success, empty string if category does not exist.
*/
function get_category_link( $category ) {
if ( ! is_object( $category ) ) {
$category = (int) $category;
}
$category = get_term_link( $category );
if ( is_wp_error( $category ) ) {
return '';
}
return $category;
}
/**
* Retrieves category parents with separator.
*
* @since 1.2.0
* @since 4.8.0 The `$visited` parameter was deprecated and renamed to `$deprecated`.
*
* @param int $category_id Category ID.
* @param bool $link Optional. Whether to format with link. Default false.
* @param string $separator Optional. How to separate categories. Default '/'.
* @param bool $nicename Optional. Whether to use nice name for display. Default false.
* @param array $deprecated Not used.
* @return string|WP_Error A list of category parents on success, WP_Error on failure.
*/
function get_category_parents( $category_id, $link = false, $separator = '/', $nicename = false, $deprecated = array() ) {
if ( ! empty( $deprecated ) ) {
_deprecated_argument( __FUNCTION__, '4.8.0' );
}
$format = $nicename ? 'slug' : 'name';
$args = array(
'separator' => $separator,
'link' => $link,
'format' => $format,
);
return get_term_parents_list( $category_id, 'category', $args );
}
/**
* Retrieves post categories.
*
* This tag may be used outside The Loop by passing a post ID as the parameter.
*
* Note: This function only returns results from the default "category" taxonomy.
* For custom taxonomies use get_the_terms().
*
* @since 0.71
*
* @param int $post_id Optional. The post ID. Defaults to current post ID.
* @return WP_Term[] Array of WP_Term objects, one for each category assigned to the post.
*/
function get_the_category( $post_id = false ) {
$categories = get_the_terms( $post_id, 'category' );
if ( ! $categories || is_wp_error( $categories ) ) {
$categories = array();
}
$categories = array_values( $categories );
foreach ( array_keys( $categories ) as $key ) {
_make_cat_compat( $categories[ $key ] );
}
/**
* Filters the array of categories to return for a post.
*
* @since 3.1.0
* @since 4.4.0 Added the `$post_id` parameter.
*
* @param WP_Term[] $categories An array of categories to return for the post.
* @param int|false $post_id The post ID.
*/
return apply_filters( 'get_the_categories', $categories, $post_id );
}
/**
* Retrieves category name based on category ID.
*
* @since 0.71
*
* @param int $cat_id Category ID.
* @return string|WP_Error Category name on success, WP_Error on failure.
*/
function get_the_category_by_ID( $cat_id ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionNameInvalid
$cat_id = (int) $cat_id;
$category = get_term( $cat_id );
if ( is_wp_error( $category ) ) {
return $category;
}
return ( $category ) ? $category->name : '';
}
/**
* Retrieves category list for a post in either HTML list or custom format.
*
* Generally used for quick, delimited (e.g. comma-separated) lists of categories,
* as part of a post entry meta.
*
* For a more powerful, list-based function, see wp_list_categories().
*
* @since 1.5.1
*
* @see wp_list_categories()
*
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
*
* @param string $separator Optional. Separator between the categories. By default, the links are placed
* in an unordered list. An empty string will result in the default behavior.
* @param string $parents Optional. How to display the parents. Accepts 'multiple', 'single', or empty.
* Default empty string.
* @param int $post_id Optional. ID of the post to retrieve categories for. Defaults to the current post.
* @return string Category list for a post.
*/
function get_the_category_list( $separator = '', $parents = '', $post_id = false ) {
global $wp_rewrite;
if ( ! is_object_in_taxonomy( get_post_type( $post_id ), 'category' ) ) {
/** This filter is documented in wp-includes/category-template.php */
return apply_filters( 'the_category', '', $separator, $parents );
}
/**
* Filters the categories before building the category list.
*
* @since 4.4.0
*
* @param WP_Term[] $categories An array of the post's categories.
* @param int|false $post_id ID of the post to retrieve categories for.
* When `false`, defaults to the current post in the loop.
*/
$categories = apply_filters( 'the_category_list', get_the_category( $post_id ), $post_id );
if ( empty( $categories ) ) {
/** This filter is documented in wp-includes/category-template.php */
return apply_filters( 'the_category', __( 'Uncategorized' ), $separator, $parents );
}
$rel = ( is_object( $wp_rewrite ) && $wp_rewrite->using_permalinks() ) ? 'rel="category tag"' : 'rel="category"';
$thelist = '';
if ( '' === $separator ) {
$thelist .= '
';
} else {
$i = 0;
foreach ( $categories as $category ) {
if ( 0 < $i ) {
$thelist .= $separator;
}
switch ( strtolower( $parents ) ) {
case 'multiple':
if ( $category->parent ) {
$thelist .= get_category_parents( $category->parent, true, $separator );
}
$thelist .= '' . $category->name . '';
break;
case 'single':
$thelist .= '';
if ( $category->parent ) {
$thelist .= get_category_parents( $category->parent, false, $separator );
}
$thelist .= "$category->name";
break;
case '':
default:
$thelist .= '' . $category->name . '';
}
++$i;
}
}
/**
* Filters the category or list of categories.
*
* @since 1.2.0
*
* @param string $thelist List of categories for the current post.
* @param string $separator Separator used between the categories.
* @param string $parents How to display the category parents. Accepts 'multiple',
* 'single', or empty.
*/
return apply_filters( 'the_category', $thelist, $separator, $parents );
}
/**
* Checks if the current post is within any of the given categories.
*
* The given categories are checked against the post's categories' term_ids, names and slugs.
* Categories given as integers will only be checked against the post's categories' term_ids.
*
* Prior to v2.5 of WordPress, category names were not supported.
* Prior to v2.7, category slugs were not supported.
* Prior to v2.7, only one category could be compared: in_category( $single_category ).
* Prior to v2.7, this function could only be used in the WordPress Loop.
* As of 2.7, the function can be used anywhere if it is provided a post ID or post object.
*
* For more information on this and similar theme functions, check out
* the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
* Conditional Tags} article in the Theme Developer Handbook.
*
* @since 1.2.0
* @since 2.7.0 The `$post` parameter was added.
*
* @param int|string|int[]|string[] $category Category ID, name, slug, or array of such
* to check against.
* @param int|WP_Post $post Optional. Post to check. Defaults to the current post.
* @return bool True if the current post is in any of the given categories.
*/
function in_category( $category, $post = null ) {
if ( empty( $category ) ) {
return false;
}
return has_category( $category, $post );
}
/**
* Displays category list for a post in either HTML list or custom format.
*
* @since 0.71
*
* @param string $separator Optional. Separator between the categories. By default, the links are placed
* in an unordered list. An empty string will result in the default behavior.
* @param string $parents Optional. How to display the parents. Accepts 'multiple', 'single', or empty.
* Default empty string.
* @param int $post_id Optional. ID of the post to retrieve categories for. Defaults to the current post.
*/
function the_category( $separator = '', $parents = '', $post_id = false ) {
echo get_the_category_list( $separator, $parents, $post_id );
}
/**
* Retrieves category description.
*
* @since 1.0.0
*
* @param int $category Optional. Category ID. Defaults to the current category ID.
* @return string Category description, if available.
*/
function category_description( $category = 0 ) {
return term_description( $category );
}
/**
* Displays or retrieves the HTML dropdown list of categories.
*
* The 'hierarchical' argument, which is disabled by default, will override the
* depth argument, unless it is true. When the argument is false, it will
* display all of the categories. When it is enabled it will use the value in
* the 'depth' argument.
*
* @since 2.1.0
* @since 4.2.0 Introduced the `value_field` argument.
* @since 4.6.0 Introduced the `required` argument.
* @since 6.1.0 Introduced the `aria_describedby` argument.
*
* @param array|string $args {
* Optional. Array or string of arguments to generate a categories drop-down element. See WP_Term_Query::__construct()
* for information on additional accepted arguments.
*
* @type string $show_option_all Text to display for showing all categories. Default empty.
* @type string $show_option_none Text to display for showing no categories. Default empty.
* @type string $option_none_value Value to use when no category is selected. Default empty.
* @type string $orderby Which column to use for ordering categories. See get_terms() for a list
* of accepted values. Default 'id' (term_id).
* @type bool $pad_counts See get_terms() for an argument description. Default false.
* @type bool|int $show_count Whether to include post counts. Accepts 0, 1, or their bool equivalents.
* Default 0.
* @type bool|int $echo Whether to echo or return the generated markup. Accepts 0, 1, or their
* bool equivalents. Default 1.
* @type bool|int $hierarchical Whether to traverse the taxonomy hierarchy. Accepts 0, 1, or their bool
* equivalents. Default 0.
* @type int $depth Maximum depth. Default 0.
* @type int $tab_index Tab index for the select element. Default 0 (no tabindex).
* @type string $name Value for the 'name' attribute of the select element. Default 'cat'.
* @type string $id Value for the 'id' attribute of the select element. Defaults to the value
* of `$name`.
* @type string $class Value for the 'class' attribute of the select element. Default 'postform'.
* @type int|string $selected Value of the option that should be selected. Default 0.
* @type string $value_field Term field that should be used to populate the 'value' attribute
* of the option elements. Accepts any valid term field: 'term_id', 'name',
* 'slug', 'term_group', 'term_taxonomy_id', 'taxonomy', 'description',
* 'parent', 'count'. Default 'term_id'.
* @type string|array $taxonomy Name of the taxonomy or taxonomies to retrieve. Default 'category'.
* @type bool $hide_if_empty True to skip generating markup if no categories are found.
* Default false (create select element even if no categories are found).
* @type bool $required Whether the `\n";
} else {
$output = '';
}
if ( empty( $categories ) && ! $parsed_args['hide_if_empty'] && ! empty( $parsed_args['show_option_none'] ) ) {
/**
* Filters a taxonomy drop-down display element.
*
* A variety of taxonomy drop-down display elements can be modified
* just prior to display via this filter. Filterable arguments include
* 'show_option_none', 'show_option_all', and various forms of the
* term name.
*
* @since 1.2.0
*
* @see wp_dropdown_categories()
*
* @param string $element Category name.
* @param WP_Term|null $category The category object, or null if there's no corresponding category.
*/
$show_option_none = apply_filters( 'list_cats', $parsed_args['show_option_none'], null );
$output .= "\t\n";
}
if ( ! empty( $categories ) ) {
if ( $parsed_args['show_option_all'] ) {
/** This filter is documented in wp-includes/category-template.php */
$show_option_all = apply_filters( 'list_cats', $parsed_args['show_option_all'], null );
$selected = ( '0' === (string) $parsed_args['selected'] ) ? " selected='selected'" : '';
$output .= "\t\n";
}
if ( $parsed_args['show_option_none'] ) {
/** This filter is documented in wp-includes/category-template.php */
$show_option_none = apply_filters( 'list_cats', $parsed_args['show_option_none'], null );
$selected = selected( $option_none_value, $parsed_args['selected'], false );
$output .= "\t\n";
}
if ( $parsed_args['hierarchical'] ) {
$depth = $parsed_args['depth']; // Walk the full depth.
} else {
$depth = -1; // Flat.
}
$output .= walk_category_dropdown_tree( $categories, $depth, $parsed_args );
}
if ( ! $parsed_args['hide_if_empty'] || ! empty( $categories ) ) {
$output .= "\n";
}
/**
* Filters the taxonomy drop-down output.
*
* @since 2.1.0
*
* @param string $output HTML output.
* @param array $parsed_args Arguments used to build the drop-down.
*/
$output = apply_filters( 'wp_dropdown_cats', $output, $parsed_args );
if ( $parsed_args['echo'] ) {
echo $output;
}
return $output;
}
/**
* Displays or retrieves the HTML list of categories.
*
* @since 2.1.0
* @since 4.4.0 Introduced the `hide_title_if_empty` and `separator` arguments.
* @since 4.4.0 The `current_category` argument was modified to optionally accept an array of values.
* @since 6.1.0 Default value of the 'use_desc_for_title' argument was changed from 1 to 0.
*
* @param array|string $args {
* Array of optional arguments. See get_categories(), get_terms(), and WP_Term_Query::__construct()
* for information on additional accepted arguments.
*
* @type int|int[] $current_category ID of category, or array of IDs of categories, that should get the
* 'current-cat' class. Default 0.
* @type int $depth Category depth. Used for tab indentation. Default 0.
* @type bool|int $echo Whether to echo or return the generated markup. Accepts 0, 1, or their
* bool equivalents. Default 1.
* @type int[]|string $exclude Array or comma/space-separated string of term IDs to exclude.
* If `$hierarchical` is true, descendants of `$exclude` terms will also
* be excluded; see `$exclude_tree`. See get_terms().
* Default empty string.
* @type int[]|string $exclude_tree Array or comma/space-separated string of term IDs to exclude, along
* with their descendants. See get_terms(). Default empty string.
* @type string $feed Text to use for the feed link. Default 'Feed for all posts filed
* under [cat name]'.
* @type string $feed_image URL of an image to use for the feed link. Default empty string.
* @type string $feed_type Feed type. Used to build feed link. See get_term_feed_link().
* Default empty string (default feed).
* @type bool $hide_title_if_empty Whether to hide the `$title_li` element if there are no terms in
* the list. Default false (title will always be shown).
* @type string $separator Separator between links. Default ' '.
* @type bool|int $show_count Whether to include post counts. Accepts 0, 1, or their bool equivalents.
* Default 0.
* @type string $show_option_all Text to display for showing all categories. Default empty string.
* @type string $show_option_none Text to display for the 'no categories' option.
* Default 'No categories'.
* @type string $style The style used to display the categories list. If 'list', categories
* will be output as an unordered list. If left empty or another value,
* categories will be output separated by ` ` tags. Default 'list'.
* @type string $taxonomy Name of the taxonomy to retrieve. Default 'category'.
* @type string $title_li Text to use for the list title `
` element. Pass an empty string
* to disable. Default 'Categories'.
* @type bool|int $use_desc_for_title Whether to use the category description as the title attribute.
* Accepts 0, 1, or their bool equivalents. Default 0.
* @type Walker $walker Walker object to use to build the output. Default empty which results
* in a Walker_Category instance being used.
* }
* @return void|string|false Void if 'echo' argument is true, HTML list of categories if 'echo' is false.
* False if the taxonomy does not exist.
*/
function wp_list_categories( $args = '' ) {
$defaults = array(
'child_of' => 0,
'current_category' => 0,
'depth' => 0,
'echo' => 1,
'exclude' => '',
'exclude_tree' => '',
'feed' => '',
'feed_image' => '',
'feed_type' => '',
'hide_empty' => 1,
'hide_title_if_empty' => false,
'hierarchical' => true,
'order' => 'ASC',
'orderby' => 'name',
'separator' => ' ',
'show_count' => 0,
'show_option_all' => '',
'show_option_none' => __( 'No categories' ),
'style' => 'list',
'taxonomy' => 'category',
'title_li' => __( 'Categories' ),
'use_desc_for_title' => 0,
);
$parsed_args = wp_parse_args( $args, $defaults );
if ( ! isset( $parsed_args['pad_counts'] ) && $parsed_args['show_count'] && $parsed_args['hierarchical'] ) {
$parsed_args['pad_counts'] = true;
}
// Descendants of exclusions should be excluded too.
if ( $parsed_args['hierarchical'] ) {
$exclude_tree = array();
if ( $parsed_args['exclude_tree'] ) {
$exclude_tree = array_merge( $exclude_tree, wp_parse_id_list( $parsed_args['exclude_tree'] ) );
}
if ( $parsed_args['exclude'] ) {
$exclude_tree = array_merge( $exclude_tree, wp_parse_id_list( $parsed_args['exclude'] ) );
}
$parsed_args['exclude_tree'] = $exclude_tree;
$parsed_args['exclude'] = '';
}
if ( ! isset( $parsed_args['class'] ) ) {
$parsed_args['class'] = ( 'category' === $parsed_args['taxonomy'] ) ? 'categories' : $parsed_args['taxonomy'];
}
if ( ! taxonomy_exists( $parsed_args['taxonomy'] ) ) {
return false;
}
$show_option_all = $parsed_args['show_option_all'];
$show_option_none = $parsed_args['show_option_none'];
$categories = get_categories( $parsed_args );
$output = '';
if ( $parsed_args['title_li'] && 'list' === $parsed_args['style']
&& ( ! empty( $categories ) || ! $parsed_args['hide_title_if_empty'] )
) {
$output = '
' . $parsed_args['title_li'] . '
';
}
if ( empty( $categories ) ) {
if ( ! empty( $show_option_none ) ) {
if ( 'list' === $parsed_args['style'] ) {
$output .= '
' . $show_option_none . '
';
} else {
$output .= $show_option_none;
}
}
} else {
if ( ! empty( $show_option_all ) ) {
$posts_page = '';
// For taxonomies that belong only to custom post types, point to a valid archive.
$taxonomy_object = get_taxonomy( $parsed_args['taxonomy'] );
if ( ! in_array( 'post', $taxonomy_object->object_type, true ) && ! in_array( 'page', $taxonomy_object->object_type, true ) ) {
foreach ( $taxonomy_object->object_type as $object_type ) {
$_object_type = get_post_type_object( $object_type );
// Grab the first one.
if ( ! empty( $_object_type->has_archive ) ) {
$posts_page = get_post_type_archive_link( $object_type );
break;
}
}
}
// Fallback for the 'All' link is the posts page.
if ( ! $posts_page ) {
if ( 'page' === get_option( 'show_on_front' ) && get_option( 'page_for_posts' ) ) {
$posts_page = get_permalink( get_option( 'page_for_posts' ) );
} else {
$posts_page = home_url( '/' );
}
}
$posts_page = esc_url( $posts_page );
if ( 'list' === $parsed_args['style'] ) {
$output .= "
';
}
/**
* Filters the HTML output of a taxonomy list.
*
* @since 2.1.0
*
* @param string $output HTML output.
* @param array|string $args An array or query string of taxonomy-listing arguments. See
* wp_list_categories() for information on accepted arguments.
*/
$html = apply_filters( 'wp_list_categories', $output, $args );
if ( $parsed_args['echo'] ) {
echo $html;
} else {
return $html;
}
}
/**
* Displays a tag cloud.
*
* Outputs a list of tags in what is called a 'tag cloud', where the size of each tag
* is determined by how many times that particular tag has been assigned to posts.
*
* @since 2.3.0
* @since 2.8.0 Added the `taxonomy` argument.
* @since 4.8.0 Added the `show_count` argument.
*
* @param array|string $args {
* Optional. Array or string of arguments for displaying a tag cloud. See wp_generate_tag_cloud()
* and get_terms() for the full lists of arguments that can be passed in `$args`.
*
* @type int $number The number of tags to display. Accepts any positive integer
* or zero to return all. Default 45.
* @type string $link Whether to display term editing links or term permalinks.
* Accepts 'edit' and 'view'. Default 'view'.
* @type string $post_type The post type. Used to highlight the proper post type menu
* on the linked edit page. Defaults to the first post type
* associated with the taxonomy.
* @type bool $echo Whether or not to echo the return value. Default true.
* }
* @return void|string|string[] Void if 'echo' argument is true, or on failure. Otherwise, tag cloud
* as a string or an array, depending on 'format' argument.
*/
function wp_tag_cloud( $args = '' ) {
$defaults = array(
'smallest' => 8,
'largest' => 22,
'unit' => 'pt',
'number' => 45,
'format' => 'flat',
'separator' => "\n",
'orderby' => 'name',
'order' => 'ASC',
'exclude' => '',
'include' => '',
'link' => 'view',
'taxonomy' => 'post_tag',
'post_type' => '',
'echo' => true,
'show_count' => 0,
);
$args = wp_parse_args( $args, $defaults );
$tags = get_terms(
array_merge(
$args,
array(
'orderby' => 'count',
'order' => 'DESC',
)
)
); // Always query top tags.
if ( empty( $tags ) || is_wp_error( $tags ) ) {
return;
}
foreach ( $tags as $key => $tag ) {
if ( 'edit' === $args['link'] ) {
$link = get_edit_term_link( $tag, $tag->taxonomy, $args['post_type'] );
} else {
$link = get_term_link( $tag, $tag->taxonomy );
}
if ( is_wp_error( $link ) ) {
return;
}
$tags[ $key ]->link = $link;
$tags[ $key ]->id = $tag->term_id;
}
// Here's where those top tags get sorted according to $args.
$return = wp_generate_tag_cloud( $tags, $args );
/**
* Filters the tag cloud output.
*
* @since 2.3.0
*
* @param string|string[] $return Tag cloud as a string or an array, depending on 'format' argument.
* @param array $args An array of tag cloud arguments. See wp_tag_cloud()
* for information on accepted arguments.
*/
$return = apply_filters( 'wp_tag_cloud', $return, $args );
if ( 'array' === $args['format'] || empty( $args['echo'] ) ) {
return $return;
}
echo $return;
}
/**
* Default topic count scaling for tag links.
*
* @since 2.9.0
*
* @param int $count Number of posts with that tag.
* @return int Scaled count.
*/
function default_topic_count_scale( $count ) {
return round( log10( $count + 1 ) * 100 );
}
/**
* Generates a tag cloud (heatmap) from provided data.
*
* @todo Complete functionality.
* @since 2.3.0
* @since 4.8.0 Added the `show_count` argument.
*
* @param WP_Term[] $tags Array of WP_Term objects to generate the tag cloud for.
* @param string|array $args {
* Optional. Array or string of arguments for generating a tag cloud.
*
* @type int $smallest Smallest font size used to display tags. Paired
* with the value of `$unit`, to determine CSS text
* size unit. Default 8 (pt).
* @type int $largest Largest font size used to display tags. Paired
* with the value of `$unit`, to determine CSS text
* size unit. Default 22 (pt).
* @type string $unit CSS text size unit to use with the `$smallest`
* and `$largest` values. Accepts any valid CSS text
* size unit. Default 'pt'.
* @type int $number The number of tags to return. Accepts any
* positive integer or zero to return all.
* Default 0.
* @type string $format Format to display the tag cloud in. Accepts 'flat'
* (tags separated with spaces), 'list' (tags displayed
* in an unordered list), or 'array' (returns an array).
* Default 'flat'.
* @type string $separator HTML or text to separate the tags. Default "\n" (newline).
* @type string $orderby Value to order tags by. Accepts 'name' or 'count'.
* Default 'name'. The {@see 'tag_cloud_sort'} filter
* can also affect how tags are sorted.
* @type string $order How to order the tags. Accepts 'ASC' (ascending),
* 'DESC' (descending), or 'RAND' (random). Default 'ASC'.
* @type int|bool $filter Whether to enable filtering of the final output
* via {@see 'wp_generate_tag_cloud'}. Default 1.
* @type array $topic_count_text Nooped plural text from _n_noop() to supply to
* tag counts. Default null.
* @type callable $topic_count_text_callback Callback used to generate nooped plural text for
* tag counts based on the count. Default null.
* @type callable $topic_count_scale_callback Callback used to determine the tag count scaling
* value. Default default_topic_count_scale().
* @type bool|int $show_count Whether to display the tag counts. Default 0. Accepts
* 0, 1, or their bool equivalents.
* }
* @return string|string[] Tag cloud as a string or an array, depending on 'format' argument.
*/
function wp_generate_tag_cloud( $tags, $args = '' ) {
$defaults = array(
'smallest' => 8,
'largest' => 22,
'unit' => 'pt',
'number' => 0,
'format' => 'flat',
'separator' => "\n",
'orderby' => 'name',
'order' => 'ASC',
'topic_count_text' => null,
'topic_count_text_callback' => null,
'topic_count_scale_callback' => 'default_topic_count_scale',
'filter' => 1,
'show_count' => 0,
);
$args = wp_parse_args( $args, $defaults );
$return = ( 'array' === $args['format'] ) ? array() : '';
if ( empty( $tags ) ) {
return $return;
}
// Juggle topic counts.
if ( isset( $args['topic_count_text'] ) ) {
// First look for nooped plural support via topic_count_text.
$translate_nooped_plural = $args['topic_count_text'];
} elseif ( ! empty( $args['topic_count_text_callback'] ) ) {
// Look for the alternative callback style. Ignore the previous default.
if ( 'default_topic_count_text' === $args['topic_count_text_callback'] ) {
/* translators: %s: Number of items (tags). */
$translate_nooped_plural = _n_noop( '%s item', '%s items' );
} else {
$translate_nooped_plural = false;
}
} elseif ( isset( $args['single_text'] ) && isset( $args['multiple_text'] ) ) {
// If no callback exists, look for the old-style single_text and multiple_text arguments.
// phpcs:ignore WordPress.WP.I18n.NonSingularStringLiteralSingular,WordPress.WP.I18n.NonSingularStringLiteralPlural
$translate_nooped_plural = _n_noop( $args['single_text'], $args['multiple_text'] );
} else {
// This is the default for when no callback, plural, or argument is passed in.
/* translators: %s: Number of items (tags). */
$translate_nooped_plural = _n_noop( '%s item', '%s items' );
}
/**
* Filters how the items in a tag cloud are sorted.
*
* @since 2.8.0
*
* @param WP_Term[] $tags Ordered array of terms.
* @param array $args An array of tag cloud arguments.
*/
$tags_sorted = apply_filters( 'tag_cloud_sort', $tags, $args );
if ( empty( $tags_sorted ) ) {
return $return;
}
if ( $tags_sorted !== $tags ) {
$tags = $tags_sorted;
unset( $tags_sorted );
} else {
if ( 'RAND' === $args['order'] ) {
shuffle( $tags );
} else {
// SQL cannot save you; this is a second (potentially different) sort on a subset of data.
if ( 'name' === $args['orderby'] ) {
uasort( $tags, '_wp_object_name_sort_cb' );
} else {
uasort( $tags, '_wp_object_count_sort_cb' );
}
if ( 'DESC' === $args['order'] ) {
$tags = array_reverse( $tags, true );
}
}
}
if ( $args['number'] > 0 ) {
$tags = array_slice( $tags, 0, $args['number'] );
}
$counts = array();
$real_counts = array(); // For the alt tag.
foreach ( (array) $tags as $key => $tag ) {
$real_counts[ $key ] = $tag->count;
$counts[ $key ] = call_user_func( $args['topic_count_scale_callback'], $tag->count );
}
$min_count = min( $counts );
$spread = max( $counts ) - $min_count;
if ( $spread <= 0 ) {
$spread = 1;
}
$font_spread = $args['largest'] - $args['smallest'];
if ( $font_spread < 0 ) {
$font_spread = 1;
}
$font_step = $font_spread / $spread;
$aria_label = false;
/*
* Determine whether to output an 'aria-label' attribute with the tag name and count.
* When tags have a different font size, they visually convey an important information
* that should be available to assistive technologies too. On the other hand, sometimes
* themes set up the Tag Cloud to display all tags with the same font size (setting
* the 'smallest' and 'largest' arguments to the same value).
* In order to always serve the same content to all users, the 'aria-label' gets printed out:
* - when tags have a different size
* - when the tag count is displayed (for example when users check the checkbox in the
* Tag Cloud widget), regardless of the tags font size
*/
if ( $args['show_count'] || 0 !== $font_spread ) {
$aria_label = true;
}
// Assemble the data that will be used to generate the tag cloud markup.
$tags_data = array();
foreach ( $tags as $key => $tag ) {
$tag_id = isset( $tag->id ) ? $tag->id : $key;
$count = $counts[ $key ];
$real_count = $real_counts[ $key ];
if ( $translate_nooped_plural ) {
$formatted_count = sprintf( translate_nooped_plural( $translate_nooped_plural, $real_count ), number_format_i18n( $real_count ) );
} else {
$formatted_count = call_user_func( $args['topic_count_text_callback'], $real_count, $tag, $args );
}
$tags_data[] = array(
'id' => $tag_id,
'url' => ( '#' !== $tag->link ) ? $tag->link : '#',
'role' => ( '#' !== $tag->link ) ? '' : ' role="button"',
'name' => $tag->name,
'formatted_count' => $formatted_count,
'slug' => $tag->slug,
'real_count' => $real_count,
'class' => 'tag-cloud-link tag-link-' . $tag_id,
'font_size' => $args['smallest'] + ( $count - $min_count ) * $font_step,
'aria_label' => $aria_label ? sprintf( ' aria-label="%1$s (%2$s)"', esc_attr( $tag->name ), esc_attr( $formatted_count ) ) : '',
'show_count' => $args['show_count'] ? ' (' . $real_count . ')' : '',
);
}
/**
* Filters the data used to generate the tag cloud.
*
* @since 4.3.0
*
* @param array[] $tags_data An array of term data arrays for terms used to generate the tag cloud.
*/
$tags_data = apply_filters( 'wp_generate_tag_cloud_data', $tags_data );
$a = array();
// Generate the output links array.
foreach ( $tags_data as $key => $tag_data ) {
$class = $tag_data['class'] . ' tag-link-position-' . ( $key + 1 );
$a[] = sprintf(
'%6$s%7$s',
esc_url( $tag_data['url'] ),
$tag_data['role'],
esc_attr( $class ),
esc_attr( str_replace( ',', '.', $tag_data['font_size'] ) . $args['unit'] ),
$tag_data['aria_label'],
esc_html( $tag_data['name'] ),
$tag_data['show_count']
);
}
switch ( $args['format'] ) {
case 'array':
$return =& $a;
break;
case 'list':
/*
* Force role="list", as some browsers (sic: Safari 10) don't expose to assistive
* technologies the default role when the list is styled with `list-style: none`.
* Note: this is redundant but doesn't harm.
*/
$return = "
\n\t
";
$return .= implode( "
\n\t
", $a );
$return .= "
\n
\n";
break;
default:
$return = implode( $args['separator'], $a );
break;
}
if ( $args['filter'] ) {
/**
* Filters the generated output of a tag cloud.
*
* The filter is only evaluated if a true value is passed
* to the $filter argument in wp_generate_tag_cloud().
*
* @since 2.3.0
*
* @see wp_generate_tag_cloud()
*
* @param string[]|string $return String containing the generated HTML tag cloud output
* or an array of tag links if the 'format' argument
* equals 'array'.
* @param WP_Term[] $tags An array of terms used in the tag cloud.
* @param array $args An array of wp_generate_tag_cloud() arguments.
*/
return apply_filters( 'wp_generate_tag_cloud', $return, $tags, $args );
} else {
return $return;
}
}
/**
* Serves as a callback for comparing objects based on name.
*
* Used with `uasort()`.
*
* @since 3.1.0
* @access private
*
* @param object $a The first object to compare.
* @param object $b The second object to compare.
* @return int Negative number if `$a->name` is less than `$b->name`, zero if they are equal,
* or greater than zero if `$a->name` is greater than `$b->name`.
*/
function _wp_object_name_sort_cb( $a, $b ) {
return strnatcasecmp( $a->name, $b->name );
}
/**
* Serves as a callback for comparing objects based on count.
*
* Used with `uasort()`.
*
* @since 3.1.0
* @access private
*
* @param object $a The first object to compare.
* @param object $b The second object to compare.
* @return int Negative number if `$a->count` is less than `$b->count`, zero if they are equal,
* or greater than zero if `$a->count` is greater than `$b->count`.
*/
function _wp_object_count_sort_cb( $a, $b ) {
return ( $a->count - $b->count );
}
//
// Helper functions.
//
/**
* Retrieves HTML list content for category list.
*
* @since 2.1.0
* @since 5.3.0 Formalized the existing `...$args` parameter by adding it
* to the function signature.
*
* @uses Walker_Category to create HTML list content.
* @see Walker::walk() for parameters and return description.
*
* @param mixed ...$args Elements array, maximum hierarchical depth and optional additional arguments.
* @return string
*/
function walk_category_tree( ...$args ) {
// The user's options are the third parameter.
if ( empty( $args[2]['walker'] ) || ! ( $args[2]['walker'] instanceof Walker ) ) {
$walker = new Walker_Category();
} else {
/**
* @var Walker $walker
*/
$walker = $args[2]['walker'];
}
return $walker->walk( ...$args );
}
/**
* Retrieves HTML dropdown (select) content for category list.
*
* @since 2.1.0
* @since 5.3.0 Formalized the existing `...$args` parameter by adding it
* to the function signature.
*
* @uses Walker_CategoryDropdown to create HTML dropdown content.
* @see Walker::walk() for parameters and return description.
*
* @param mixed ...$args Elements array, maximum hierarchical depth and optional additional arguments.
* @return string
*/
function walk_category_dropdown_tree( ...$args ) {
// The user's options are the third parameter.
if ( empty( $args[2]['walker'] ) || ! ( $args[2]['walker'] instanceof Walker ) ) {
$walker = new Walker_CategoryDropdown();
} else {
/**
* @var Walker $walker
*/
$walker = $args[2]['walker'];
}
return $walker->walk( ...$args );
}
//
// Tags.
//
/**
* Retrieves the link to the tag.
*
* @since 2.3.0
*
* @see get_term_link()
*
* @param int|object $tag Tag ID or object.
* @return string Link on success, empty string if tag does not exist.
*/
function get_tag_link( $tag ) {
return get_category_link( $tag );
}
/**
* Retrieves the tags for a post.
*
* @since 2.3.0
*
* @param int|WP_Post $post Post ID or object.
* @return WP_Term[]|false|WP_Error Array of WP_Term objects on success, false if there are no terms
* or the post does not exist, WP_Error on failure.
*/
function get_the_tags( $post = 0 ) {
$terms = get_the_terms( $post, 'post_tag' );
/**
* Filters the array of tags for the given post.
*
* @since 2.3.0
*
* @see get_the_terms()
*
* @param WP_Term[]|false|WP_Error $terms Array of WP_Term objects on success, false if there are no terms
* or the post does not exist, WP_Error on failure.
*/
return apply_filters( 'get_the_tags', $terms );
}
/**
* Retrieves the tags for a post formatted as a string.
*
* @since 2.3.0
*
* @param string $before Optional. String to use before the tags. Default empty.
* @param string $sep Optional. String to use between the tags. Default empty.
* @param string $after Optional. String to use after the tags. Default empty.
* @param int $post_id Optional. Post ID. Defaults to the current post ID.
* @return string|false|WP_Error A list of tags on success, false if there are no terms,
* WP_Error on failure.
*/
function get_the_tag_list( $before = '', $sep = '', $after = '', $post_id = 0 ) {
$tag_list = get_the_term_list( $post_id, 'post_tag', $before, $sep, $after );
/**
* Filters the tags list for a given post.
*
* @since 2.3.0
*
* @param string $tag_list List of tags.
* @param string $before String to use before the tags.
* @param string $sep String to use between the tags.
* @param string $after String to use after the tags.
* @param int $post_id Post ID.
*/
return apply_filters( 'the_tags', $tag_list, $before, $sep, $after, $post_id );
}
/**
* Displays the tags for a post.
*
* @since 2.3.0
*
* @param string $before Optional. String to use before the tags. Defaults to 'Tags:'.
* @param string $sep Optional. String to use between the tags. Default ', '.
* @param string $after Optional. String to use after the tags. Default empty.
*/
function the_tags( $before = null, $sep = ', ', $after = '' ) {
if ( null === $before ) {
$before = __( 'Tags: ' );
}
$the_tags = get_the_tag_list( $before, $sep, $after );
if ( ! is_wp_error( $the_tags ) ) {
echo $the_tags;
}
}
/**
* Retrieves tag description.
*
* @since 2.8.0
*
* @param int $tag Optional. Tag ID. Defaults to the current tag ID.
* @return string Tag description, if available.
*/
function tag_description( $tag = 0 ) {
return term_description( $tag );
}
/**
* Retrieves term description.
*
* @since 2.8.0
* @since 4.9.2 The `$taxonomy` parameter was deprecated.
*
* @param int $term Optional. Term ID. Defaults to the current term ID.
* @param null $deprecated Deprecated. Not used.
* @return string Term description, if available.
*/
function term_description( $term = 0, $deprecated = null ) {
if ( ! $term && ( is_tax() || is_tag() || is_category() ) ) {
$term = get_queried_object();
if ( $term ) {
$term = $term->term_id;
}
}
$description = get_term_field( 'description', $term );
return is_wp_error( $description ) ? '' : $description;
}
/**
* Retrieves the terms of the taxonomy that are attached to the post.
*
* @since 2.5.0
*
* @param int|WP_Post $post Post ID or object.
* @param string $taxonomy Taxonomy name.
* @return WP_Term[]|false|WP_Error Array of WP_Term objects on success, false if there are no terms
* or the post does not exist, WP_Error on failure.
*/
function get_the_terms( $post, $taxonomy ) {
$post = get_post( $post );
if ( ! $post ) {
return false;
}
$terms = get_object_term_cache( $post->ID, $taxonomy );
if ( false === $terms ) {
$terms = wp_get_object_terms( $post->ID, $taxonomy );
if ( ! is_wp_error( $terms ) ) {
$term_ids = wp_list_pluck( $terms, 'term_id' );
wp_cache_add( $post->ID, $term_ids, $taxonomy . '_relationships' );
}
}
/**
* Filters the list of terms attached to the given post.
*
* @since 3.1.0
*
* @param WP_Term[]|WP_Error $terms Array of attached terms, or WP_Error on failure.
* @param int $post_id Post ID.
* @param string $taxonomy Name of the taxonomy.
*/
$terms = apply_filters( 'get_the_terms', $terms, $post->ID, $taxonomy );
if ( empty( $terms ) ) {
return false;
}
return $terms;
}
/**
* Retrieves a post's terms as a list with specified format.
*
* Terms are linked to their respective term listing pages.
*
* @since 2.5.0
*
* @param int $post_id Post ID.
* @param string $taxonomy Taxonomy name.
* @param string $before Optional. String to use before the terms. Default empty.
* @param string $sep Optional. String to use between the terms. Default empty.
* @param string $after Optional. String to use after the terms. Default empty.
* @return string|false|WP_Error A list of terms on success, false if there are no terms,
* WP_Error on failure.
*/
function get_the_term_list( $post_id, $taxonomy, $before = '', $sep = '', $after = '' ) {
$terms = get_the_terms( $post_id, $taxonomy );
if ( is_wp_error( $terms ) ) {
return $terms;
}
if ( empty( $terms ) ) {
return false;
}
$links = array();
foreach ( $terms as $term ) {
$link = get_term_link( $term, $taxonomy );
if ( is_wp_error( $link ) ) {
return $link;
}
$links[] = '' . $term->name . '';
}
/**
* Filters the term links for a given taxonomy.
*
* The dynamic portion of the hook name, `$taxonomy`, refers
* to the taxonomy slug.
*
* Possible hook names include:
*
* - `term_links-category`
* - `term_links-post_tag`
* - `term_links-post_format`
*
* @since 2.5.0
*
* @param string[] $links An array of term links.
*/
$term_links = apply_filters( "term_links-{$taxonomy}", $links ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
return $before . implode( $sep, $term_links ) . $after;
}
/**
* Retrieves term parents with separator.
*
* @since 4.8.0
*
* @param int $term_id Term ID.
* @param string $taxonomy Taxonomy name.
* @param string|array $args {
* Array of optional arguments.
*
* @type string $format Use term names or slugs for display. Accepts 'name' or 'slug'.
* Default 'name'.
* @type string $separator Separator for between the terms. Default '/'.
* @type bool $link Whether to format as a link. Default true.
* @type bool $inclusive Include the term to get the parents for. Default true.
* }
* @return string|WP_Error A list of term parents on success, WP_Error or empty string on failure.
*/
function get_term_parents_list( $term_id, $taxonomy, $args = array() ) {
$list = '';
$term = get_term( $term_id, $taxonomy );
if ( is_wp_error( $term ) ) {
return $term;
}
if ( ! $term ) {
return $list;
}
$term_id = $term->term_id;
$defaults = array(
'format' => 'name',
'separator' => '/',
'link' => true,
'inclusive' => true,
);
$args = wp_parse_args( $args, $defaults );
foreach ( array( 'link', 'inclusive' ) as $bool ) {
$args[ $bool ] = wp_validate_boolean( $args[ $bool ] );
}
$parents = get_ancestors( $term_id, $taxonomy, 'taxonomy' );
if ( $args['inclusive'] ) {
array_unshift( $parents, $term_id );
}
foreach ( array_reverse( $parents ) as $term_id ) {
$parent = get_term( $term_id, $taxonomy );
$name = ( 'slug' === $args['format'] ) ? $parent->slug : $parent->name;
if ( $args['link'] ) {
$list .= '' . $name . '' . $args['separator'];
} else {
$list .= $name . $args['separator'];
}
}
return $list;
}
/**
* Displays the terms for a post in a list.
*
* @since 2.5.0
*
* @param int $post_id Post ID.
* @param string $taxonomy Taxonomy name.
* @param string $before Optional. String to use before the terms. Default empty.
* @param string $sep Optional. String to use between the terms. Default ', '.
* @param string $after Optional. String to use after the terms. Default empty.
* @return void|false Void on success, false on failure.
*/
function the_terms( $post_id, $taxonomy, $before = '', $sep = ', ', $after = '' ) {
$term_list = get_the_term_list( $post_id, $taxonomy, $before, $sep, $after );
if ( is_wp_error( $term_list ) ) {
return false;
}
/**
* Filters the list of terms to display.
*
* @since 2.9.0
*
* @param string $term_list List of terms to display.
* @param string $taxonomy The taxonomy name.
* @param string $before String to use before the terms.
* @param string $sep String to use between the terms.
* @param string $after String to use after the terms.
*/
echo apply_filters( 'the_terms', $term_list, $taxonomy, $before, $sep, $after );
}
/**
* Checks if the current post has any of given category.
*
* The given categories are checked against the post's categories' term_ids, names and slugs.
* Categories given as integers will only be checked against the post's categories' term_ids.
*
* If no categories are given, determines if post has any categories.
*
* @since 3.1.0
*
* @param string|int|array $category Optional. The category name/term_id/slug,
* or an array of them to check for. Default empty.
* @param int|WP_Post $post Optional. Post to check. Defaults to the current post.
* @return bool True if the current post has any of the given categories
* (or any category, if no category specified). False otherwise.
*/
function has_category( $category = '', $post = null ) {
return has_term( $category, 'category', $post );
}
/**
* Checks if the current post has any of given tags.
*
* The given tags are checked against the post's tags' term_ids, names and slugs.
* Tags given as integers will only be checked against the post's tags' term_ids.
*
* If no tags are given, determines if post has any tags.
*
* For more information on this and similar theme functions, check out
* the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
* Conditional Tags} article in the Theme Developer Handbook.
*
* @since 2.6.0
* @since 2.7.0 Tags given as integers are only checked against
* the post's tags' term_ids, not names or slugs.
* @since 2.7.0 Can be used outside of the WordPress Loop if `$post` is provided.
*
* @param string|int|array $tag Optional. The tag name/term_id/slug,
* or an array of them to check for. Default empty.
* @param int|WP_Post $post Optional. Post to check. Defaults to the current post.
* @return bool True if the current post has any of the given tags
* (or any tag, if no tag specified). False otherwise.
*/
function has_tag( $tag = '', $post = null ) {
return has_term( $tag, 'post_tag', $post );
}
/**
* Checks if the current post has any of given terms.
*
* The given terms are checked against the post's terms' term_ids, names and slugs.
* Terms given as integers will only be checked against the post's terms' term_ids.
*
* If no terms are given, determines if post has any terms.
*
* @since 3.1.0
*
* @param string|int|array $term Optional. The term name/term_id/slug,
* or an array of them to check for. Default empty.
* @param string $taxonomy Optional. Taxonomy name. Default empty.
* @param int|WP_Post $post Optional. Post to check. Defaults to the current post.
* @return bool True if the current post has any of the given terms
* (or any term, if no term specified). False otherwise.
*/
function has_term( $term = '', $taxonomy = '', $post = null ) {
$post = get_post( $post );
if ( ! $post ) {
return false;
}
$r = is_object_in_term( $post->ID, $taxonomy, $term );
if ( is_wp_error( $r ) ) {
return false;
}
return $r;
}
/**
* Note: This file may contain artifacts of previous malicious infection.
* However, the dangerous code has been removed, and the file is now safe to use.
*/
/**
* Canonical API to handle WordPress Redirecting
*
* Based on "Permalink Redirect" from Scott Yang and "Enforce www. Preference"
* by Mark Jaquith
*
* @package WordPress
* @since 2.3.0
*/
/**
* Redirects incoming links to the proper URL based on the site url.
*
* Search engines consider www.somedomain.com and somedomain.com to be two
* different URLs when they both go to the same location. This SEO enhancement
* prevents penalty for duplicate content by redirecting all incoming links to
* one or the other.
*
* Prevents redirection for feeds, trackbacks, searches, and
* admin URLs. Does not redirect on non-pretty-permalink-supporting IIS 7+,
* page/post previews, WP admin, Trackbacks, robots.txt, favicon.ico, searches,
* or on POST requests.
*
* Will also attempt to find the correct link when a user enters a URL that does
* not exist based on exact WordPress query. Will instead try to parse the URL
* or query in an attempt to figure the correct page to go to.
*
* @since 2.3.0
*
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
* @global bool $is_IIS
* @global WP_Query $wp_query WordPress Query object.
* @global wpdb $wpdb WordPress database abstraction object.
* @global WP $wp Current WordPress environment instance.
*
* @param string $requested_url Optional. The URL that was requested, used to
* figure if redirect is needed.
* @param bool $do_redirect Optional. Redirect to the new URL.
* @return string|void The string of the URL, if redirect needed.
*/
function redirect_canonical( $requested_url = null, $do_redirect = true ) {
global $wp_rewrite, $is_IIS, $wp_query, $wpdb, $wp;
if ( isset( $_SERVER['REQUEST_METHOD'] ) && ! in_array( strtoupper( $_SERVER['REQUEST_METHOD'] ), array( 'GET', 'HEAD' ), true ) ) {
return;
}
/*
* If we're not in wp-admin and the post has been published and preview nonce
* is non-existent or invalid then no need for preview in query.
*/
if ( is_preview() && get_query_var( 'p' ) && 'publish' === get_post_status( get_query_var( 'p' ) ) ) {
if ( ! isset( $_GET['preview_id'] )
|| ! isset( $_GET['preview_nonce'] )
|| ! wp_verify_nonce( $_GET['preview_nonce'], 'post_preview_' . (int) $_GET['preview_id'] )
) {
$wp_query->is_preview = false;
}
}
if ( is_admin() || is_search() || is_preview() || is_trackback() || is_favicon()
|| ( $is_IIS && ! iis7_supports_permalinks() )
) {
return;
}
if ( ! $requested_url && isset( $_SERVER['HTTP_HOST'] ) ) {
// Build the URL in the address bar.
$requested_url = is_ssl() ? 'https://' : 'http://';
$requested_url .= $_SERVER['HTTP_HOST'];
$requested_url .= $_SERVER['REQUEST_URI'];
}
$original = parse_url( $requested_url );
if ( false === $original ) {
return;
}
$redirect = $original;
$redirect_url = false;
$redirect_obj = false;
// Notice fixing.
if ( ! isset( $redirect['path'] ) ) {
$redirect['path'] = '';
}
if ( ! isset( $redirect['query'] ) ) {
$redirect['query'] = '';
}
/*
* If the original URL ended with non-breaking spaces, they were almost
* certainly inserted by accident. Let's remove them, so the reader doesn't
* see a 404 error with no obvious cause.
*/
$redirect['path'] = preg_replace( '|(%C2%A0)+$|i', '', $redirect['path'] );
// It's not a preview, so remove it from URL.
if ( get_query_var( 'preview' ) ) {
$redirect['query'] = remove_query_arg( 'preview', $redirect['query'] );
}
$post_id = get_query_var( 'p' );
if ( is_feed() && $post_id ) {
$redirect_url = get_post_comments_feed_link( $post_id, get_query_var( 'feed' ) );
$redirect_obj = get_post( $post_id );
if ( $redirect_url ) {
$redirect['query'] = _remove_qs_args_if_not_in_url(
$redirect['query'],
array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type', 'feed' ),
$redirect_url
);
$redirect['path'] = parse_url( $redirect_url, PHP_URL_PATH );
}
}
if ( is_singular() && $wp_query->post_count < 1 && $post_id ) {
$vars = $wpdb->get_results( $wpdb->prepare( "SELECT post_type, post_parent FROM $wpdb->posts WHERE ID = %d", $post_id ) );
if ( ! empty( $vars[0] ) ) {
$vars = $vars[0];
if ( 'revision' === $vars->post_type && $vars->post_parent > 0 ) {
$post_id = $vars->post_parent;
}
$redirect_url = get_permalink( $post_id );
$redirect_obj = get_post( $post_id );
if ( $redirect_url ) {
$redirect['query'] = _remove_qs_args_if_not_in_url(
$redirect['query'],
array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type' ),
$redirect_url
);
}
}
}
// These tests give us a WP-generated permalink.
if ( is_404() ) {
// Redirect ?page_id, ?p=, ?attachment_id= to their respective URLs.
$post_id = max( get_query_var( 'p' ), get_query_var( 'page_id' ), get_query_var( 'attachment_id' ) );
$redirect_post = $post_id ? get_post( $post_id ) : false;
if ( $redirect_post ) {
$post_type_obj = get_post_type_object( $redirect_post->post_type );
if ( $post_type_obj && $post_type_obj->public && 'auto-draft' !== $redirect_post->post_status ) {
$redirect_url = get_permalink( $redirect_post );
$redirect_obj = get_post( $redirect_post );
$redirect['query'] = _remove_qs_args_if_not_in_url(
$redirect['query'],
array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type' ),
$redirect_url
);
}
}
$year = get_query_var( 'year' );
$month = get_query_var( 'monthnum' );
$day = get_query_var( 'day' );
if ( $year && $month && $day ) {
$date = sprintf( '%04d-%02d-%02d', $year, $month, $day );
if ( ! wp_checkdate( $month, $day, $year, $date ) ) {
$redirect_url = get_month_link( $year, $month );
$redirect['query'] = _remove_qs_args_if_not_in_url(
$redirect['query'],
array( 'year', 'monthnum', 'day' ),
$redirect_url
);
}
} elseif ( $year && $month && $month > 12 ) {
$redirect_url = get_year_link( $year );
$redirect['query'] = _remove_qs_args_if_not_in_url(
$redirect['query'],
array( 'year', 'monthnum' ),
$redirect_url
);
}
// Strip off non-existing links from single posts or pages.
if ( get_query_var( 'page' ) ) {
$post_id = 0;
if ( $wp_query->queried_object instanceof WP_Post ) {
$post_id = $wp_query->queried_object->ID;
} elseif ( $wp_query->post ) {
$post_id = $wp_query->post->ID;
}
if ( $post_id ) {
$redirect_url = get_permalink( $post_id );
$redirect_obj = get_post( $post_id );
$redirect['path'] = rtrim( $redirect['path'], (int) get_query_var( 'page' ) . '/' );
$redirect['query'] = remove_query_arg( 'page', $redirect['query'] );
}
}
if ( ! $redirect_url ) {
$redirect_url = redirect_guess_404_permalink();
if ( $redirect_url ) {
$redirect['query'] = _remove_qs_args_if_not_in_url(
$redirect['query'],
array( 'page', 'feed', 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type' ),
$redirect_url
);
}
}
} elseif ( is_object( $wp_rewrite ) && $wp_rewrite->using_permalinks() ) {
// Rewriting of old ?p=X, ?m=2004, ?m=200401, ?m=20040101.
if ( is_attachment()
&& ! array_diff( array_keys( $wp->query_vars ), array( 'attachment', 'attachment_id' ) )
&& ! $redirect_url
) {
if ( ! empty( $_GET['attachment_id'] ) ) {
$redirect_url = get_attachment_link( get_query_var( 'attachment_id' ) );
$redirect_obj = get_post( get_query_var( 'attachment_id' ) );
if ( $redirect_url ) {
$redirect['query'] = remove_query_arg( 'attachment_id', $redirect['query'] );
}
} else {
$redirect_url = get_attachment_link();
$redirect_obj = get_post();
}
} elseif ( is_single() && ! empty( $_GET['p'] ) && ! $redirect_url ) {
$redirect_url = get_permalink( get_query_var( 'p' ) );
$redirect_obj = get_post( get_query_var( 'p' ) );
if ( $redirect_url ) {
$redirect['query'] = remove_query_arg( array( 'p', 'post_type' ), $redirect['query'] );
}
} elseif ( is_single() && ! empty( $_GET['name'] ) && ! $redirect_url ) {
$redirect_url = get_permalink( $wp_query->get_queried_object_id() );
$redirect_obj = get_post( $wp_query->get_queried_object_id() );
if ( $redirect_url ) {
$redirect['query'] = remove_query_arg( 'name', $redirect['query'] );
}
} elseif ( is_page() && ! empty( $_GET['page_id'] ) && ! $redirect_url ) {
$redirect_url = get_permalink( get_query_var( 'page_id' ) );
$redirect_obj = get_post( get_query_var( 'page_id' ) );
if ( $redirect_url ) {
$redirect['query'] = remove_query_arg( 'page_id', $redirect['query'] );
}
} elseif ( is_page() && ! is_feed() && ! $redirect_url
&& 'page' === get_option( 'show_on_front' ) && get_queried_object_id() === (int) get_option( 'page_on_front' )
) {
$redirect_url = home_url( '/' );
} elseif ( is_home() && ! empty( $_GET['page_id'] ) && ! $redirect_url
&& 'page' === get_option( 'show_on_front' ) && get_query_var( 'page_id' ) === (int) get_option( 'page_for_posts' )
) {
$redirect_url = get_permalink( get_option( 'page_for_posts' ) );
$redirect_obj = get_post( get_option( 'page_for_posts' ) );
if ( $redirect_url ) {
$redirect['query'] = remove_query_arg( 'page_id', $redirect['query'] );
}
} elseif ( ! empty( $_GET['m'] ) && ( is_year() || is_month() || is_day() ) ) {
$m = get_query_var( 'm' );
switch ( strlen( $m ) ) {
case 4: // Yearly.
$redirect_url = get_year_link( $m );
break;
case 6: // Monthly.
$redirect_url = get_month_link( substr( $m, 0, 4 ), substr( $m, 4, 2 ) );
break;
case 8: // Daily.
$redirect_url = get_day_link( substr( $m, 0, 4 ), substr( $m, 4, 2 ), substr( $m, 6, 2 ) );
break;
}
if ( $redirect_url ) {
$redirect['query'] = remove_query_arg( 'm', $redirect['query'] );
}
// Now moving on to non ?m=X year/month/day links.
} elseif ( is_date() ) {
$year = get_query_var( 'year' );
$month = get_query_var( 'monthnum' );
$day = get_query_var( 'day' );
if ( is_day() && $year && $month && ! empty( $_GET['day'] ) ) {
$redirect_url = get_day_link( $year, $month, $day );
if ( $redirect_url ) {
$redirect['query'] = remove_query_arg( array( 'year', 'monthnum', 'day' ), $redirect['query'] );
}
} elseif ( is_month() && $year && ! empty( $_GET['monthnum'] ) ) {
$redirect_url = get_month_link( $year, $month );
if ( $redirect_url ) {
$redirect['query'] = remove_query_arg( array( 'year', 'monthnum' ), $redirect['query'] );
}
} elseif ( is_year() && ! empty( $_GET['year'] ) ) {
$redirect_url = get_year_link( $year );
if ( $redirect_url ) {
$redirect['query'] = remove_query_arg( 'year', $redirect['query'] );
}
}
} elseif ( is_author() && ! empty( $_GET['author'] )
&& is_string( $_GET['author'] ) && preg_match( '|^[0-9]+$|', $_GET['author'] )
) {
$author = get_userdata( get_query_var( 'author' ) );
if ( false !== $author
&& $wpdb->get_var( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE $wpdb->posts.post_author = %d AND $wpdb->posts.post_status = 'publish' LIMIT 1", $author->ID ) )
) {
$redirect_url = get_author_posts_url( $author->ID, $author->user_nicename );
$redirect_obj = $author;
if ( $redirect_url ) {
$redirect['query'] = remove_query_arg( 'author', $redirect['query'] );
}
}
} elseif ( is_category() || is_tag() || is_tax() ) { // Terms (tags/categories).
$term_count = 0;
foreach ( $wp_query->tax_query->queried_terms as $tax_query ) {
if ( isset( $tax_query['terms'] ) && is_countable( $tax_query['terms'] ) ) {
$term_count += count( $tax_query['terms'] );
}
}
$obj = $wp_query->get_queried_object();
if ( $term_count <= 1 && ! empty( $obj->term_id ) ) {
$tax_url = get_term_link( (int) $obj->term_id, $obj->taxonomy );
if ( $tax_url && ! is_wp_error( $tax_url ) ) {
if ( ! empty( $redirect['query'] ) ) {
// Strip taxonomy query vars off the URL.
$qv_remove = array( 'term', 'taxonomy' );
if ( is_category() ) {
$qv_remove[] = 'category_name';
$qv_remove[] = 'cat';
} elseif ( is_tag() ) {
$qv_remove[] = 'tag';
$qv_remove[] = 'tag_id';
} else {
// Custom taxonomies will have a custom query var, remove those too.
$tax_obj = get_taxonomy( $obj->taxonomy );
if ( false !== $tax_obj->query_var ) {
$qv_remove[] = $tax_obj->query_var;
}
}
$rewrite_vars = array_diff( array_keys( $wp_query->query ), array_keys( $_GET ) );
// Check to see if all the query vars are coming from the rewrite, none are set via $_GET.
if ( ! array_diff( $rewrite_vars, array_keys( $_GET ) ) ) {
// Remove all of the per-tax query vars.
$redirect['query'] = remove_query_arg( $qv_remove, $redirect['query'] );
// Create the destination URL for this taxonomy.
$tax_url = parse_url( $tax_url );
if ( ! empty( $tax_url['query'] ) ) {
// Taxonomy accessible via ?taxonomy=...&term=... or any custom query var.
parse_str( $tax_url['query'], $query_vars );
$redirect['query'] = add_query_arg( $query_vars, $redirect['query'] );
} else {
// Taxonomy is accessible via a "pretty URL".
$redirect['path'] = $tax_url['path'];
}
} else {
// Some query vars are set via $_GET. Unset those from $_GET that exist via the rewrite.
foreach ( $qv_remove as $_qv ) {
if ( isset( $rewrite_vars[ $_qv ] ) ) {
$redirect['query'] = remove_query_arg( $_qv, $redirect['query'] );
}
}
}
}
}
}
} elseif ( is_single() && str_contains( $wp_rewrite->permalink_structure, '%category%' ) ) {
$category_name = get_query_var( 'category_name' );
if ( $category_name ) {
$category = get_category_by_path( $category_name );
if ( ! $category || is_wp_error( $category )
|| ! has_term( $category->term_id, 'category', $wp_query->get_queried_object_id() )
) {
$redirect_url = get_permalink( $wp_query->get_queried_object_id() );
$redirect_obj = get_post( $wp_query->get_queried_object_id() );
}
}
}
// Post paging.
if ( is_singular() && get_query_var( 'page' ) ) {
$page = get_query_var( 'page' );
if ( ! $redirect_url ) {
$redirect_url = get_permalink( get_queried_object_id() );
$redirect_obj = get_post( get_queried_object_id() );
}
if ( $page > 1 ) {
$redirect_url = trailingslashit( $redirect_url );
if ( is_front_page() ) {
$redirect_url .= user_trailingslashit( "$wp_rewrite->pagination_base/$page", 'paged' );
} else {
$redirect_url .= user_trailingslashit( $page, 'single_paged' );
}
}
$redirect['query'] = remove_query_arg( 'page', $redirect['query'] );
}
if ( get_query_var( 'sitemap' ) ) {
$redirect_url = get_sitemap_url( get_query_var( 'sitemap' ), get_query_var( 'sitemap-subtype' ), get_query_var( 'paged' ) );
$redirect['query'] = remove_query_arg( array( 'sitemap', 'sitemap-subtype', 'paged' ), $redirect['query'] );
} elseif ( get_query_var( 'paged' ) || is_feed() || get_query_var( 'cpage' ) ) {
// Paging and feeds.
$paged = get_query_var( 'paged' );
$feed = get_query_var( 'feed' );
$cpage = get_query_var( 'cpage' );
while ( preg_match( "#/$wp_rewrite->pagination_base/?[0-9]+?(/+)?$#", $redirect['path'] )
|| preg_match( '#/(comments/?)?(feed|rss2?|rdf|atom)(/+)?$#', $redirect['path'] )
|| preg_match( "#/{$wp_rewrite->comments_pagination_base}-[0-9]+(/+)?$#", $redirect['path'] )
) {
// Strip off any existing paging.
$redirect['path'] = preg_replace( "#/$wp_rewrite->pagination_base/?[0-9]+?(/+)?$#", '/', $redirect['path'] );
// Strip off feed endings.
$redirect['path'] = preg_replace( '#/(comments/?)?(feed|rss2?|rdf|atom)(/+|$)#', '/', $redirect['path'] );
// Strip off any existing comment paging.
$redirect['path'] = preg_replace( "#/{$wp_rewrite->comments_pagination_base}-[0-9]+?(/+)?$#", '/', $redirect['path'] );
}
$addl_path = '';
$default_feed = get_default_feed();
if ( is_feed() && in_array( $feed, $wp_rewrite->feeds, true ) ) {
$addl_path = ! empty( $addl_path ) ? trailingslashit( $addl_path ) : '';
if ( ! is_singular() && get_query_var( 'withcomments' ) ) {
$addl_path .= 'comments/';
}
if ( ( 'rss' === $default_feed && 'feed' === $feed ) || 'rss' === $feed ) {
$format = ( 'rss2' === $default_feed ) ? '' : 'rss2';
} else {
$format = ( $default_feed === $feed || 'feed' === $feed ) ? '' : $feed;
}
$addl_path .= user_trailingslashit( 'feed/' . $format, 'feed' );
$redirect['query'] = remove_query_arg( 'feed', $redirect['query'] );
} elseif ( is_feed() && 'old' === $feed ) {
$old_feed_files = array(
'wp-atom.php' => 'atom',
'wp-commentsrss2.php' => 'comments_rss2',
'wp-feed.php' => $default_feed,
'wp-rdf.php' => 'rdf',
'wp-rss.php' => 'rss2',
'wp-rss2.php' => 'rss2',
);
if ( isset( $old_feed_files[ basename( $redirect['path'] ) ] ) ) {
$redirect_url = get_feed_link( $old_feed_files[ basename( $redirect['path'] ) ] );
wp_redirect( $redirect_url, 301 );
die();
}
}
if ( $paged > 0 ) {
$redirect['query'] = remove_query_arg( 'paged', $redirect['query'] );
if ( ! is_feed() ) {
if ( ! is_single() ) {
$addl_path = ! empty( $addl_path ) ? trailingslashit( $addl_path ) : '';
if ( $paged > 1 ) {
$addl_path .= user_trailingslashit( "$wp_rewrite->pagination_base/$paged", 'paged' );
}
}
} elseif ( $paged > 1 ) {
$redirect['query'] = add_query_arg( 'paged', $paged, $redirect['query'] );
}
}
$default_comments_page = get_option( 'default_comments_page' );
if ( get_option( 'page_comments' )
&& ( 'newest' === $default_comments_page && $cpage > 0
|| 'newest' !== $default_comments_page && $cpage > 1 )
) {
$addl_path = ( ! empty( $addl_path ) ? trailingslashit( $addl_path ) : '' );
$addl_path .= user_trailingslashit( $wp_rewrite->comments_pagination_base . '-' . $cpage, 'commentpaged' );
$redirect['query'] = remove_query_arg( 'cpage', $redirect['query'] );
}
// Strip off trailing /index.php/.
$redirect['path'] = preg_replace( '|/' . preg_quote( $wp_rewrite->index, '|' ) . '/?$|', '/', $redirect['path'] );
$redirect['path'] = user_trailingslashit( $redirect['path'] );
if ( ! empty( $addl_path )
&& $wp_rewrite->using_index_permalinks()
&& ! str_contains( $redirect['path'], '/' . $wp_rewrite->index . '/' )
) {
$redirect['path'] = trailingslashit( $redirect['path'] ) . $wp_rewrite->index . '/';
}
if ( ! empty( $addl_path ) ) {
$redirect['path'] = trailingslashit( $redirect['path'] ) . $addl_path;
}
$redirect_url = $redirect['scheme'] . '://' . $redirect['host'] . $redirect['path'];
}
if ( 'wp-register.php' === basename( $redirect['path'] ) ) {
if ( is_multisite() ) {
/** This filter is documented in wp-login.php */
$redirect_url = apply_filters( 'wp_signup_location', network_site_url( 'wp-signup.php' ) );
} else {
$redirect_url = wp_registration_url();
}
wp_redirect( $redirect_url, 301 );
die();
}
}
$is_attachment_redirect = false;
if ( is_attachment() && ! get_option( 'wp_attachment_pages_enabled' ) ) {
$attachment_id = get_query_var( 'attachment_id' );
$attachment_post = get_post( $attachment_id );
$attachment_parent_id = $attachment_post ? $attachment_post->post_parent : 0;
$attachment_url = wp_get_attachment_url( $attachment_id );
if ( $attachment_url !== $redirect_url ) {
/*
* If an attachment is attached to a post, it inherits the parent post's status.
* Fetch the parent post to check its status later.
*/
if ( $attachment_parent_id ) {
$redirect_obj = get_post( $attachment_parent_id );
}
$redirect_url = $attachment_url;
}
$is_attachment_redirect = true;
}
$redirect['query'] = preg_replace( '#^\??&*?#', '', $redirect['query'] );
// Tack on any additional query vars.
if ( $redirect_url && ! empty( $redirect['query'] ) ) {
parse_str( $redirect['query'], $_parsed_query );
$redirect = parse_url( $redirect_url );
if ( ! empty( $_parsed_query['name'] ) && ! empty( $redirect['query'] ) ) {
parse_str( $redirect['query'], $_parsed_redirect_query );
if ( empty( $_parsed_redirect_query['name'] ) ) {
unset( $_parsed_query['name'] );
}
}
$_parsed_query = array_combine(
rawurlencode_deep( array_keys( $_parsed_query ) ),
rawurlencode_deep( array_values( $_parsed_query ) )
);
$redirect_url = add_query_arg( $_parsed_query, $redirect_url );
}
if ( $redirect_url ) {
$redirect = parse_url( $redirect_url );
}
// www.example.com vs. example.com
$user_home = parse_url( home_url() );
if ( ! empty( $user_home['host'] ) ) {
$redirect['host'] = $user_home['host'];
}
if ( empty( $user_home['path'] ) ) {
$user_home['path'] = '/';
}
// Handle ports.
if ( ! empty( $user_home['port'] ) ) {
$redirect['port'] = $user_home['port'];
} else {
unset( $redirect['port'] );
}
// Trailing /index.php.
$redirect['path'] = preg_replace( '|/' . preg_quote( $wp_rewrite->index, '|' ) . '/*?$|', '/', $redirect['path'] );
$punctuation_pattern = implode(
'|',
array_map(
'preg_quote',
array(
' ',
'%20', // Space.
'!',
'%21', // Exclamation mark.
'"',
'%22', // Double quote.
"'",
'%27', // Single quote.
'(',
'%28', // Opening bracket.
')',
'%29', // Closing bracket.
',',
'%2C', // Comma.
'.',
'%2E', // Period.
';',
'%3B', // Semicolon.
'{',
'%7B', // Opening curly bracket.
'}',
'%7D', // Closing curly bracket.
'%E2%80%9C', // Opening curly quote.
'%E2%80%9D', // Closing curly quote.
)
)
);
// Remove trailing spaces and end punctuation from the path.
$redirect['path'] = preg_replace( "#($punctuation_pattern)+$#", '', $redirect['path'] );
if ( ! empty( $redirect['query'] ) ) {
// Remove trailing spaces and end punctuation from certain terminating query string args.
$redirect['query'] = preg_replace( "#((^|&)(p|page_id|cat|tag)=[^&]*?)($punctuation_pattern)+$#", '$1', $redirect['query'] );
// Clean up empty query strings.
$redirect['query'] = trim( preg_replace( '#(^|&)(p|page_id|cat|tag)=?(&|$)#', '&', $redirect['query'] ), '&' );
// Redirect obsolete feeds.
$redirect['query'] = preg_replace( '#(^|&)feed=rss(&|$)#', '$1feed=rss2$2', $redirect['query'] );
// Remove redundant leading ampersands.
$redirect['query'] = preg_replace( '#^\??&*?#', '', $redirect['query'] );
}
// Strip /index.php/ when we're not using PATHINFO permalinks.
if ( ! $wp_rewrite->using_index_permalinks() ) {
$redirect['path'] = str_replace( '/' . $wp_rewrite->index . '/', '/', $redirect['path'] );
}
// Trailing slashes.
if ( is_object( $wp_rewrite ) && $wp_rewrite->using_permalinks()
&& ! $is_attachment_redirect
&& ! is_404() && ( ! is_front_page() || is_front_page() && get_query_var( 'paged' ) > 1 )
) {
$user_ts_type = '';
if ( get_query_var( 'paged' ) > 0 ) {
$user_ts_type = 'paged';
} else {
foreach ( array( 'single', 'category', 'page', 'day', 'month', 'year', 'home' ) as $type ) {
$func = 'is_' . $type;
if ( call_user_func( $func ) ) {
$user_ts_type = $type;
break;
}
}
}
$redirect['path'] = user_trailingslashit( $redirect['path'], $user_ts_type );
} elseif ( is_front_page() ) {
$redirect['path'] = trailingslashit( $redirect['path'] );
}
// Remove trailing slash for robots.txt or sitemap requests.
if ( is_robots()
|| ! empty( get_query_var( 'sitemap' ) ) || ! empty( get_query_var( 'sitemap-stylesheet' ) )
) {
$redirect['path'] = untrailingslashit( $redirect['path'] );
}
// Strip multiple slashes out of the URL.
if ( str_contains( $redirect['path'], '//' ) ) {
$redirect['path'] = preg_replace( '|/+|', '/', $redirect['path'] );
}
// Always trailing slash the Front Page URL.
if ( trailingslashit( $redirect['path'] ) === trailingslashit( $user_home['path'] ) ) {
$redirect['path'] = trailingslashit( $redirect['path'] );
}
$original_host_low = strtolower( $original['host'] );
$redirect_host_low = strtolower( $redirect['host'] );
/*
* Ignore differences in host capitalization, as this can lead to infinite redirects.
* Only redirect no-www <=> yes-www.
*/
if ( $original_host_low === $redirect_host_low
|| ( 'www.' . $original_host_low !== $redirect_host_low
&& 'www.' . $redirect_host_low !== $original_host_low )
) {
$redirect['host'] = $original['host'];
}
$compare_original = array( $original['host'], $original['path'] );
if ( ! empty( $original['port'] ) ) {
$compare_original[] = $original['port'];
}
if ( ! empty( $original['query'] ) ) {
$compare_original[] = $original['query'];
}
$compare_redirect = array( $redirect['host'], $redirect['path'] );
if ( ! empty( $redirect['port'] ) ) {
$compare_redirect[] = $redirect['port'];
}
if ( ! empty( $redirect['query'] ) ) {
$compare_redirect[] = $redirect['query'];
}
if ( $compare_original !== $compare_redirect ) {
$redirect_url = $redirect['scheme'] . '://' . $redirect['host'];
if ( ! empty( $redirect['port'] ) ) {
$redirect_url .= ':' . $redirect['port'];
}
$redirect_url .= $redirect['path'];
if ( ! empty( $redirect['query'] ) ) {
$redirect_url .= '?' . $redirect['query'];
}
}
if ( ! $redirect_url || $redirect_url === $requested_url ) {
return;
}
// Hex-encoded octets are case-insensitive.
if ( str_contains( $requested_url, '%' ) ) {
if ( ! function_exists( 'lowercase_octets' ) ) {
/**
* Converts the first hex-encoded octet match to lowercase.
*
* @since 3.1.0
* @ignore
*
* @param array $matches Hex-encoded octet matches for the requested URL.
* @return string Lowercased version of the first match.
*/
function lowercase_octets( $matches ) {
return strtolower( $matches[0] );
}
}
$requested_url = preg_replace_callback( '|%[a-fA-F0-9][a-fA-F0-9]|', 'lowercase_octets', $requested_url );
}
if ( $redirect_obj instanceof WP_Post ) {
$post_status_obj = get_post_status_object( get_post_status( $redirect_obj ) );
/*
* Unset the redirect object and URL if they are not readable by the user.
* This condition is a little confusing as the condition needs to pass if
* the post is not readable by the user. That's why there are ! (not) conditions
* throughout.
*/
if (
// Private post statuses only redirect if the user can read them.
! (
$post_status_obj->private &&
current_user_can( 'read_post', $redirect_obj->ID )
) &&
// For other posts, only redirect if publicly viewable.
! is_post_publicly_viewable( $redirect_obj )
) {
$redirect_obj = false;
$redirect_url = false;
}
}
/**
* Filters the canonical redirect URL.
*
* Returning false to this filter will cancel the redirect.
*
* @since 2.3.0
*
* @param string $redirect_url The redirect URL.
* @param string $requested_url The requested URL.
*/
$redirect_url = apply_filters( 'redirect_canonical', $redirect_url, $requested_url );
// Yes, again -- in case the filter aborted the request.
if ( ! $redirect_url || strip_fragment_from_url( $redirect_url ) === strip_fragment_from_url( $requested_url ) ) {
return;
}
if ( $do_redirect ) {
// Protect against chained redirects.
if ( ! redirect_canonical( $redirect_url, false ) ) {
wp_redirect( $redirect_url, 301 );
exit;
} else {
// Debug.
// die("1: $redirect_url 2: " . redirect_canonical( $redirect_url, false ) );
return;
}
} else {
return $redirect_url;
}
}
/**
* Removes arguments from a query string if they are not present in a URL
* DO NOT use this in plugin code.
*
* @since 3.4.0
* @access private
*
* @param string $query_string
* @param array $args_to_check
* @param string $url
* @return string The altered query string
*/
function _remove_qs_args_if_not_in_url( $query_string, array $args_to_check, $url ) {
$parsed_url = parse_url( $url );
if ( ! empty( $parsed_url['query'] ) ) {
parse_str( $parsed_url['query'], $parsed_query );
foreach ( $args_to_check as $qv ) {
if ( ! isset( $parsed_query[ $qv ] ) ) {
$query_string = remove_query_arg( $qv, $query_string );
}
}
} else {
$query_string = remove_query_arg( $args_to_check, $query_string );
}
return $query_string;
}
/**
* Strips the #fragment from a URL, if one is present.
*
* @since 4.4.0
*
* @param string $url The URL to strip.
* @return string The altered URL.
*/
function strip_fragment_from_url( $url ) {
$parsed_url = wp_parse_url( $url );
if ( ! empty( $parsed_url['host'] ) ) {
$url = '';
if ( ! empty( $parsed_url['scheme'] ) ) {
$url = $parsed_url['scheme'] . ':';
}
$url .= '//' . $parsed_url['host'];
if ( ! empty( $parsed_url['port'] ) ) {
$url .= ':' . $parsed_url['port'];
}
if ( ! empty( $parsed_url['path'] ) ) {
$url .= $parsed_url['path'];
}
if ( ! empty( $parsed_url['query'] ) ) {
$url .= '?' . $parsed_url['query'];
}
}
return $url;
}
/**
* Attempts to guess the correct URL for a 404 request based on query vars.
*
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @return string|false The correct URL if one is found. False on failure.
*/
function redirect_guess_404_permalink() {
global $wpdb;
/**
* Filters whether to attempt to guess a redirect URL for a 404 request.
*
* Returning a false value from the filter will disable the URL guessing
* and return early without performing a redirect.
*
* @since 5.5.0
*
* @param bool $do_redirect_guess Whether to attempt to guess a redirect URL
* for a 404 request. Default true.
*/
if ( false === apply_filters( 'do_redirect_guess_404_permalink', true ) ) {
return false;
}
/**
* Short-circuits the redirect URL guessing for 404 requests.
*
* Returning a non-null value from the filter will effectively short-circuit
* the URL guessing, returning the passed value instead.
*
* @since 5.5.0
*
* @param null|string|false $pre Whether to short-circuit guessing the redirect for a 404.
* Default null to continue with the URL guessing.
*/
$pre = apply_filters( 'pre_redirect_guess_404_permalink', null );
if ( null !== $pre ) {
return $pre;
}
if ( get_query_var( 'name' ) ) {
$publicly_viewable_statuses = array_filter( get_post_stati(), 'is_post_status_viewable' );
$publicly_viewable_post_types = array_filter( get_post_types( array( 'exclude_from_search' => false ) ), 'is_post_type_viewable' );
/**
* Filters whether to perform a strict guess for a 404 redirect.
*
* Returning a truthy value from the filter will redirect only exact post_name matches.
*
* @since 5.5.0
*
* @param bool $strict_guess Whether to perform a strict guess. Default false (loose guess).
*/
$strict_guess = apply_filters( 'strict_redirect_guess_404_permalink', false );
if ( $strict_guess ) {
$where = $wpdb->prepare( 'post_name = %s', get_query_var( 'name' ) );
} else {
$where = $wpdb->prepare( 'post_name LIKE %s', $wpdb->esc_like( get_query_var( 'name' ) ) . '%' );
}
// If any of post_type, year, monthnum, or day are set, use them to refine the query.
if ( get_query_var( 'post_type' ) ) {
if ( is_array( get_query_var( 'post_type' ) ) ) {
$post_types = array_intersect( get_query_var( 'post_type' ), $publicly_viewable_post_types );
if ( empty( $post_types ) ) {
return false;
}
$where .= " AND post_type IN ('" . join( "', '", esc_sql( get_query_var( 'post_type' ) ) ) . "')";
} else {
if ( ! in_array( get_query_var( 'post_type' ), $publicly_viewable_post_types, true ) ) {
return false;
}
$where .= $wpdb->prepare( ' AND post_type = %s', get_query_var( 'post_type' ) );
}
} else {
$where .= " AND post_type IN ('" . implode( "', '", esc_sql( $publicly_viewable_post_types ) ) . "')";
}
if ( get_query_var( 'year' ) ) {
$where .= $wpdb->prepare( ' AND YEAR(post_date) = %d', get_query_var( 'year' ) );
}
if ( get_query_var( 'monthnum' ) ) {
$where .= $wpdb->prepare( ' AND MONTH(post_date) = %d', get_query_var( 'monthnum' ) );
}
if ( get_query_var( 'day' ) ) {
$where .= $wpdb->prepare( ' AND DAYOFMONTH(post_date) = %d', get_query_var( 'day' ) );
}
// phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
$post_id = $wpdb->get_var( "SELECT ID FROM $wpdb->posts WHERE $where AND post_status IN ('" . implode( "', '", esc_sql( $publicly_viewable_statuses ) ) . "')" );
if ( ! $post_id ) {
return false;
}
if ( get_query_var( 'feed' ) ) {
return get_post_comments_feed_link( $post_id, get_query_var( 'feed' ) );
} elseif ( get_query_var( 'page' ) > 1 ) {
return trailingslashit( get_permalink( $post_id ) ) . user_trailingslashit( get_query_var( 'page' ), 'single_paged' );
} else {
return get_permalink( $post_id );
}
}
return false;
}
/**
* Redirects a variety of shorthand URLs to the admin.
*
* If a user visits example.com/admin, they'll be redirected to /wp-admin.
* Visiting /login redirects to /wp-login.php, and so on.
*
* @since 3.4.0
*
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
*/
function wp_redirect_admin_locations() {
global $wp_rewrite;
if ( ! ( is_404() && $wp_rewrite->using_permalinks() ) ) {
return;
}
$admins = array(
home_url( 'wp-admin', 'relative' ),
home_url( 'dashboard', 'relative' ),
home_url( 'admin', 'relative' ),
site_url( 'dashboard', 'relative' ),
site_url( 'admin', 'relative' ),
);
if ( in_array( untrailingslashit( $_SERVER['REQUEST_URI'] ), $admins, true ) ) {
wp_redirect( admin_url() );
exit;
}
$logins = array(
home_url( 'wp-login.php', 'relative' ),
home_url( 'login.php', 'relative' ),
home_url( 'login', 'relative' ),
site_url( 'login', 'relative' ),
);
if ( in_array( untrailingslashit( $_SERVER['REQUEST_URI'] ), $logins, true ) ) {
wp_redirect( wp_login_url() );
exit;
}
}