/
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 .= '
';
foreach ( $categories as $category ) {
$thelist .= "\n\t";
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 . ' ';
}
}
$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 `` element should have the HTML5 'required' attribute.
* Default false.
* @type Walker $walker Walker object to use to build the output. Default empty which results in a
* Walker_CategoryDropdown instance being used.
* @type string $aria_describedby The 'id' of an element that contains descriptive text for the select.
* Default empty string.
* }
* @return string HTML dropdown list of categories.
*/
function wp_dropdown_categories( $args = '' ) {
$defaults = array(
'show_option_all' => '',
'show_option_none' => '',
'orderby' => 'id',
'order' => 'ASC',
'show_count' => 0,
'hide_empty' => 1,
'child_of' => 0,
'exclude' => '',
'echo' => 1,
'selected' => 0,
'hierarchical' => 0,
'name' => 'cat',
'id' => '',
'class' => 'postform',
'depth' => 0,
'tab_index' => 0,
'taxonomy' => 'category',
'hide_if_empty' => false,
'option_none_value' => -1,
'value_field' => 'term_id',
'required' => false,
'aria_describedby' => '',
);
$defaults['selected'] = ( is_category() ) ? get_query_var( 'cat' ) : 0;
// Back compat.
if ( isset( $args['type'] ) && 'link' === $args['type'] ) {
_deprecated_argument(
__FUNCTION__,
'3.0.0',
sprintf(
/* translators: 1: "type => link", 2: "taxonomy => link_category" */
__( '%1$s is deprecated. Use %2$s instead.' ),
'type => link
',
'taxonomy => link_category
'
)
);
$args['taxonomy'] = 'link_category';
}
// Parse incoming $args into an array and merge it with $defaults.
$parsed_args = wp_parse_args( $args, $defaults );
$option_none_value = $parsed_args['option_none_value'];
if ( ! isset( $parsed_args['pad_counts'] ) && $parsed_args['show_count'] && $parsed_args['hierarchical'] ) {
$parsed_args['pad_counts'] = true;
}
$tab_index = $parsed_args['tab_index'];
$tab_index_attribute = '';
if ( (int) $tab_index > 0 ) {
$tab_index_attribute = " tabindex=\"$tab_index\"";
}
// Avoid clashes with the 'name' param of get_terms().
$get_terms_args = $parsed_args;
unset( $get_terms_args['name'] );
$categories = get_terms( $get_terms_args );
$name = esc_attr( $parsed_args['name'] );
$class = esc_attr( $parsed_args['class'] );
$id = $parsed_args['id'] ? esc_attr( $parsed_args['id'] ) : $name;
$required = $parsed_args['required'] ? 'required' : '';
$aria_describedby_attribute = $parsed_args['aria_describedby'] ? ' aria-describedby="' . esc_attr( $parsed_args['aria_describedby'] ) . '"' : '';
if ( ! $parsed_args['hide_if_empty'] || ! empty( $categories ) ) {
$output = "\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 );
$output .= "\t$show_option_none \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'" : '';
$output .= "\t$show_option_all \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 );
$output .= "\t$show_option_none \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'] ) {
$output .= "$show_option_all ";
} else {
$output .= "$show_option_all ";
}
}
if ( empty( $parsed_args['current_category'] ) && ( is_category() || is_tax() || is_tag() ) ) {
$current_term_object = get_queried_object();
if ( $current_term_object && $parsed_args['taxonomy'] === $current_term_object->taxonomy ) {
$parsed_args['current_category'] = get_queried_object_id();
}
}
if ( $parsed_args['hierarchical'] ) {
$depth = $parsed_args['depth'];
} else {
$depth = -1; // Flat.
}
$output .= walk_category_tree( $categories, $depth, $parsed_args );
}
if ( $parsed_args['title_li'] && 'list' === $parsed_args['style']
&& ( ! empty( $categories ) || ! $parsed_args['hide_title_if_empty'] )
) {
$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;
}
);
//Add a placeholder item to the "no_update" list to enable auto-update support.
//If we don't do this, the option to enable automatic updates will only show up
//when an update is available.
$updates = $this->addNoUpdateItem($updates);
}
return $updates;
}
/**
* @param stdClass|null $updates
* @param stdClass|array $updateToAdd
* @return stdClass
*/
protected function addUpdateToList($updates, $updateToAdd) {
if ( !is_object($updates) ) {
$updates = new stdClass();
$updates->response = array();
}
$updates->response[$this->getUpdateListKey()] = $updateToAdd;
return $updates;
}
/**
* @param stdClass|null $updates
* @return stdClass|null
*/
protected function removeUpdateFromList($updates) {
if ( isset($updates, $updates->response) ) {
unset($updates->response[$this->getUpdateListKey()]);
}
return $updates;
}
/**
* See this post for more information:
* @link https://make.wordpress.org/core/2020/07/30/recommended-usage-of-the-updates-api-to-support-the-auto-updates-ui-for-plugins-and-themes-in-wordpress-5-5/
*
* @param stdClass|null $updates
* @return stdClass
*/
protected function addNoUpdateItem($updates) {
if ( !is_object($updates) ) {
$updates = new stdClass();
$updates->response = array();
$updates->no_update = array();
} else if ( !isset($updates->no_update) ) {
$updates->no_update = array();
}
$updates->no_update[$this->getUpdateListKey()] = (object) $this->getNoUpdateItemFields();
return $updates;
}
/**
* Subclasses should override this method to add fields that are specific to plugins or themes.
* @return array
*/
protected function getNoUpdateItemFields() {
return array(
'new_version' => $this->getInstalledVersion(),
'url' => '',
'package' => '',
'requires_php' => '',
);
}
/**
* Get the key that will be used when adding updates to the update list that's maintained
* by the WordPress core. The list is always an associative array, but the key is different
* for plugins and themes.
*
* @return string
*/
abstract protected function getUpdateListKey();
/**
* Should we show available updates?
*
* Usually the answer is "yes", but there are exceptions. For example, WordPress doesn't
* support automatic updates installation for mu-plugins, so PUC usually won't show update
* notifications in that case. See the plugin-specific subclass for details.
*
* Note: This method only applies to updates that are displayed (or not) in the WordPress
* admin. It doesn't affect APIs like requestUpdate and getUpdate.
*
* @return bool
*/
protected function shouldShowUpdates() {
return true;
}
/* -------------------------------------------------------------------
* JSON-based update API
* -------------------------------------------------------------------
*/
/**
* Retrieve plugin or theme metadata from the JSON document at $this->metadataUrl.
*
* @param string $metaClass Parse the JSON as an instance of this class. It must have a static fromJson method.
* @param string $filterRoot
* @param array $queryArgs Additional query arguments.
* @return array [Puc_v4p11_Metadata|null, array|WP_Error] A metadata instance and the value returned by wp_remote_get().
*/
protected function requestMetadata($metaClass, $filterRoot, $queryArgs = array()) {
//Query args to append to the URL. Plugins can add their own by using a filter callback (see addQueryArgFilter()).
$queryArgs = array_merge(
array(
'installed_version' => strval($this->getInstalledVersion()),
'php' => phpversion(),
'locale' => get_locale(),
),
$queryArgs
);
$queryArgs = apply_filters($this->getUniqueName($filterRoot . '_query_args'), $queryArgs);
//Various options for the wp_remote_get() call. Plugins can filter these, too.
$options = array(
'timeout' => 10, //seconds
'headers' => array(
'Accept' => 'application/json',
),
);
$options = apply_filters($this->getUniqueName($filterRoot . '_options'), $options);
//The metadata file should be at 'http://your-api.com/url/here/$slug/info.json'
$url = $this->metadataUrl;
if ( !empty($queryArgs) ){
$url = add_query_arg($queryArgs, $url);
}
$result = wp_remote_get($url, $options);
$result = apply_filters($this->getUniqueName('request_metadata_http_result'), $result, $url, $options);
//Try to parse the response
$status = $this->validateApiResponse($result);
$metadata = null;
if ( !is_wp_error($status) ){
if ( version_compare(PHP_VERSION, '5.3', '>=') && (strpos($metaClass, '\\') === false) ) {
$metaClass = __NAMESPACE__ . '\\' . $metaClass;
}
$metadata = call_user_func(array($metaClass, 'fromJson'), $result['body']);
} else {
do_action('puc_api_error', $status, $result, $url, $this->slug);
$this->triggerError(
sprintf('The URL %s does not point to a valid metadata file. ', $url)
. $status->get_error_message(),
E_USER_WARNING
);
}
return array($metadata, $result);
}
/**
* Check if $result is a successful update API response.
*
* @param array|WP_Error $result
* @return true|WP_Error
*/
protected function validateApiResponse($result) {
if ( is_wp_error($result) ) { /** @var WP_Error $result */
return new WP_Error($result->get_error_code(), 'WP HTTP Error: ' . $result->get_error_message());
}
if ( !isset($result['response']['code']) ) {
return new WP_Error(
'puc_no_response_code',
'wp_remote_get() returned an unexpected result.'
);
}
if ( $result['response']['code'] !== 200 ) {
return new WP_Error(
'puc_unexpected_response_code',
'HTTP response code is ' . $result['response']['code'] . ' (expected: 200)'
);
}
if ( empty($result['body']) ) {
return new WP_Error('puc_empty_response', 'The metadata file appears to be empty.');
}
return true;
}
/* -------------------------------------------------------------------
* Language packs / Translation updates
* -------------------------------------------------------------------
*/
/**
* Filter a list of translation updates and return a new list that contains only updates
* that apply to the current site.
*
* @param array $translations
* @return array
*/
protected function filterApplicableTranslations($translations) {
$languages = array_flip(array_values(get_available_languages()));
$installedTranslations = $this->getInstalledTranslations();
$applicableTranslations = array();
foreach ($translations as $translation) {
//Does it match one of the available core languages?
$isApplicable = array_key_exists($translation->language, $languages);
//Is it more recent than an already-installed translation?
if ( isset($installedTranslations[$translation->language]) ) {
$updateTimestamp = strtotime($translation->updated);
$installedTimestamp = strtotime($installedTranslations[$translation->language]['PO-Revision-Date']);
$isApplicable = $updateTimestamp > $installedTimestamp;
}
if ( $isApplicable ) {
$applicableTranslations[] = $translation;
}
}
return $applicableTranslations;
}
/**
* Get a list of installed translations for this plugin or theme.
*
* @return array
*/
protected function getInstalledTranslations() {
if ( !function_exists('wp_get_installed_translations') ) {
return array();
}
$installedTranslations = wp_get_installed_translations($this->translationType . 's');
if ( isset($installedTranslations[$this->directoryName]) ) {
$installedTranslations = $installedTranslations[$this->directoryName];
} else {
$installedTranslations = array();
}
return $installedTranslations;
}
/**
* Insert translation updates into the list maintained by WordPress.
*
* @param stdClass $updates
* @return stdClass
*/
public function injectTranslationUpdates($updates) {
$translationUpdates = $this->getTranslationUpdates();
if ( empty($translationUpdates) ) {
return $updates;
}
//Being defensive.
if ( !is_object($updates) ) {
$updates = new stdClass();
}
if ( !isset($updates->translations) ) {
$updates->translations = array();
}
//In case there's a name collision with a plugin or theme hosted on wordpress.org,
//remove any preexisting updates that match our thing.
$updates->translations = array_values(array_filter(
$updates->translations,
array($this, 'isNotMyTranslation')
));
//Add our updates to the list.
foreach($translationUpdates as $update) {
$convertedUpdate = array_merge(
array(
'type' => $this->translationType,
'slug' => $this->directoryName,
'autoupdate' => 0,
//AFAICT, WordPress doesn't actually use the "version" field for anything.
//But lets make sure it's there, just in case.
'version' => isset($update->version) ? $update->version : ('1.' . strtotime($update->updated)),
),
(array)$update
);
$updates->translations[] = $convertedUpdate;
}
return $updates;
}
/**
* Get a list of available translation updates.
*
* This method will return an empty array if there are no updates.
* Uses cached update data.
*
* @return array
*/
public function getTranslationUpdates() {
return $this->updateState->getTranslations();
}
/**
* Remove all cached translation updates.
*
* @see wp_clean_update_cache
*/
public function clearCachedTranslationUpdates() {
$this->updateState->setTranslations(array());
}
/**
* Filter callback. Keeps only translations that *don't* match this plugin or theme.
*
* @param array $translation
* @return bool
*/
protected function isNotMyTranslation($translation) {
$isMatch = isset($translation['type'], $translation['slug'])
&& ($translation['type'] === $this->translationType)
&& ($translation['slug'] === $this->directoryName);
return !$isMatch;
}
/* -------------------------------------------------------------------
* Fix directory name when installing updates
* -------------------------------------------------------------------
*/
/**
* Rename the update directory to match the existing plugin/theme directory.
*
* When WordPress installs a plugin or theme update, it assumes that the ZIP file will contain
* exactly one directory, and that the directory name will be the same as the directory where
* the plugin or theme is currently installed.
*
* GitHub and other repositories provide ZIP downloads, but they often use directory names like
* "project-branch" or "project-tag-hash". We need to change the name to the actual plugin folder.
*
* This is a hook callback. Don't call it from a plugin.
*
* @access protected
*
* @param string $source The directory to copy to /wp-content/plugins or /wp-content/themes. Usually a subdirectory of $remoteSource.
* @param string $remoteSource WordPress has extracted the update to this directory.
* @param WP_Upgrader $upgrader
* @return string|WP_Error
*/
public function fixDirectoryName($source, $remoteSource, $upgrader) {
global $wp_filesystem;
/** @var WP_Filesystem_Base $wp_filesystem */
//Basic sanity checks.
if ( !isset($source, $remoteSource, $upgrader, $upgrader->skin, $wp_filesystem) ) {
return $source;
}
//If WordPress is upgrading anything other than our plugin/theme, leave the directory name unchanged.
if ( !$this->isBeingUpgraded($upgrader) ) {
return $source;
}
//Rename the source to match the existing directory.
$correctedSource = trailingslashit($remoteSource) . $this->directoryName . '/';
if ( $source !== $correctedSource ) {
//The update archive should contain a single directory that contains the rest of plugin/theme files.
//Otherwise, WordPress will try to copy the entire working directory ($source == $remoteSource).
//We can't rename $remoteSource because that would break WordPress code that cleans up temporary files
//after update.
if ( $this->isBadDirectoryStructure($remoteSource) ) {
return new WP_Error(
'puc-incorrect-directory-structure',
sprintf(
'The directory structure of the update is incorrect. All files should be inside ' .
'a directory named %s , not at the root of the ZIP archive.',
htmlentities($this->slug)
)
);
}
/** @var WP_Upgrader_Skin $upgrader ->skin */
$upgrader->skin->feedback(sprintf(
'Renaming %s to %s…',
'' . basename($source) . ' ',
'' . $this->directoryName . ' '
));
if ( $wp_filesystem->move($source, $correctedSource, true) ) {
$upgrader->skin->feedback('Directory successfully renamed.');
return $correctedSource;
} else {
return new WP_Error(
'puc-rename-failed',
'Unable to rename the update to match the existing directory.'
);
}
}
return $source;
}
/**
* Is there an update being installed right now, for this plugin or theme?
*
* @param WP_Upgrader|null $upgrader The upgrader that's performing the current update.
* @return bool
*/
abstract public function isBeingUpgraded($upgrader = null);
/**
* Check for incorrect update directory structure. An update must contain a single directory,
* all other files should be inside that directory.
*
* @param string $remoteSource Directory path.
* @return bool
*/
protected function isBadDirectoryStructure($remoteSource) {
global $wp_filesystem;
/** @var WP_Filesystem_Base $wp_filesystem */
$sourceFiles = $wp_filesystem->dirlist($remoteSource);
if ( is_array($sourceFiles) ) {
$sourceFiles = array_keys($sourceFiles);
$firstFilePath = trailingslashit($remoteSource) . $sourceFiles[0];
return (count($sourceFiles) > 1) || (!$wp_filesystem->is_dir($firstFilePath));
}
//Assume it's fine.
return false;
}
/* -------------------------------------------------------------------
* DebugBar integration
* -------------------------------------------------------------------
*/
/**
* Initialize the update checker Debug Bar plugin/add-on thingy.
*/
public function maybeInitDebugBar() {
if ( class_exists('Debug_Bar', false) && file_exists(dirname(__FILE__) . '/DebugBar') ) {
$this->debugBarExtension = $this->createDebugBarExtension();
}
}
protected function createDebugBarExtension() {
return new Puc_v4p11_DebugBar_Extension($this);
}
/**
* Display additional configuration details in the Debug Bar panel.
*
* @param Puc_v4p11_DebugBar_Panel $panel
*/
public function onDisplayConfiguration($panel) {
//Do nothing. Subclasses can use this to add additional info to the panel.
}
}
endif;