424 lines
14 KiB
PHP
424 lines
14 KiB
PHP
<?php
|
|
/**
|
|
* WordPress Rewrite API
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Rewrite
|
|
*/
|
|
|
|
/**
|
|
* Adds a straight rewrite rule.
|
|
*
|
|
* @since 2.1.0
|
|
* @since 4.4.0 Array support was added to the `$redirect` parameter.
|
|
*
|
|
* @global WP_Rewrite $wp_rewrite WordPress Rewrite Component.
|
|
*
|
|
* @param string $regex Regular Expression to match request against.
|
|
* @param string|array $redirect Page to redirect to, or array of query vars and values.
|
|
* @param string $after Optional, default is 'bottom'. Where to add rule, can also be 'top'.
|
|
*/
|
|
function add_rewrite_rule( $regex, $redirect, $after = 'bottom' ) {
|
|
global $wp_rewrite;
|
|
|
|
$wp_rewrite->add_rule( $regex, $redirect, $after );
|
|
}
|
|
|
|
/**
|
|
* Add a new rewrite tag (like %postname%).
|
|
*
|
|
* The $query parameter is optional. If it is omitted you must ensure that
|
|
* you call this on, or before, the 'init' hook. This is because $query defaults
|
|
* to "$tag=", and for this to work a new query var has to be added.
|
|
*
|
|
* @since 2.1.0
|
|
*
|
|
* @global WP_Rewrite $wp_rewrite
|
|
* @global WP $wp
|
|
*
|
|
* @param string $tag Name of the new rewrite tag.
|
|
* @param string $regex Regular expression to substitute the tag for in rewrite rules.
|
|
* @param string $query String to append to the rewritten query. Must end in '='. Optional.
|
|
*/
|
|
function add_rewrite_tag( $tag, $regex, $query = '' ) {
|
|
// validate the tag's name
|
|
if ( strlen( $tag ) < 3 || $tag[0] != '%' || $tag[ strlen($tag) - 1 ] != '%' )
|
|
return;
|
|
|
|
global $wp_rewrite, $wp;
|
|
|
|
if ( empty( $query ) ) {
|
|
$qv = trim( $tag, '%' );
|
|
$wp->add_query_var( $qv );
|
|
$query = $qv . '=';
|
|
}
|
|
|
|
$wp_rewrite->add_rewrite_tag( $tag, $regex, $query );
|
|
}
|
|
|
|
/**
|
|
* Add permalink structure.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @global WP_Rewrite $wp_rewrite
|
|
*
|
|
* @param string $name Name for permalink structure.
|
|
* @param string $struct Permalink structure.
|
|
* @param array $args Optional configuration for building the rules from the permalink structure,
|
|
* see {@link WP_Rewrite::add_permastruct()} for full details.
|
|
*/
|
|
function add_permastruct( $name, $struct, $args = array() ) {
|
|
global $wp_rewrite;
|
|
|
|
// backwards compatibility for the old parameters: $with_front and $ep_mask
|
|
if ( ! is_array( $args ) )
|
|
$args = array( 'with_front' => $args );
|
|
if ( func_num_args() == 4 )
|
|
$args['ep_mask'] = func_get_arg( 3 );
|
|
|
|
$wp_rewrite->add_permastruct( $name, $struct, $args );
|
|
}
|
|
|
|
/**
|
|
* Add a new feed type like /atom1/.
|
|
*
|
|
* @since 2.1.0
|
|
*
|
|
* @global WP_Rewrite $wp_rewrite
|
|
*
|
|
* @param string $feedname
|
|
* @param callable $function Callback to run on feed display.
|
|
* @return string Feed action name.
|
|
*/
|
|
function add_feed($feedname, $function) {
|
|
global $wp_rewrite;
|
|
if ( ! in_array($feedname, $wp_rewrite->feeds) ) //override the file if it is
|
|
$wp_rewrite->feeds[] = $feedname;
|
|
$hook = 'do_feed_' . $feedname;
|
|
// Remove default function hook
|
|
remove_action($hook, $hook);
|
|
add_action($hook, $function, 10, 1);
|
|
return $hook;
|
|
}
|
|
|
|
/**
|
|
* Remove rewrite rules and then recreate rewrite rules.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @global WP_Rewrite $wp_rewrite
|
|
*
|
|
* @param bool $hard Whether to update .htaccess (hard flush) or just update
|
|
* rewrite_rules transient (soft flush). Default is true (hard).
|
|
*/
|
|
function flush_rewrite_rules( $hard = true ) {
|
|
global $wp_rewrite;
|
|
$wp_rewrite->flush_rules( $hard );
|
|
}
|
|
|
|
/**
|
|
* Add an endpoint, like /trackback/.
|
|
*
|
|
* Adding an endpoint creates extra rewrite rules for each of the matching
|
|
* places specified by the provided bitmask. For example:
|
|
*
|
|
* add_rewrite_endpoint( 'json', EP_PERMALINK | EP_PAGES );
|
|
*
|
|
* will add a new rewrite rule ending with "json(/(.*))?/?$" for every permastruct
|
|
* that describes a permalink (post) or page. This is rewritten to "json=$match"
|
|
* where $match is the part of the URL matched by the endpoint regex (e.g. "foo" in
|
|
* "[permalink]/json/foo/").
|
|
*
|
|
* A new query var with the same name as the endpoint will also be created.
|
|
*
|
|
* When specifying $places ensure that you are using the EP_* constants (or a
|
|
* combination of them using the bitwise OR operator) as their values are not
|
|
* guaranteed to remain static (especially `EP_ALL`).
|
|
*
|
|
* Be sure to flush the rewrite rules - see flush_rewrite_rules() - when your plugin gets
|
|
* activated and deactivated.
|
|
*
|
|
* @since 2.1.0
|
|
* @since 4.3.0 Added support for skipping query var registration by passing `false` to `$query_var`.
|
|
*
|
|
* @global WP_Rewrite $wp_rewrite
|
|
*
|
|
* @param string $name Name of the endpoint.
|
|
* @param int $places Endpoint mask describing the places the endpoint should be added.
|
|
* @param string|bool $query_var Name of the corresponding query variable. Pass `false` to skip registering a query_var
|
|
* for this endpoint. Defaults to the value of `$name`.
|
|
*/
|
|
function add_rewrite_endpoint( $name, $places, $query_var = true ) {
|
|
global $wp_rewrite;
|
|
$wp_rewrite->add_endpoint( $name, $places, $query_var );
|
|
}
|
|
|
|
/**
|
|
* Filter the URL base for taxonomies.
|
|
*
|
|
* To remove any manually prepended /index.php/.
|
|
*
|
|
* @access private
|
|
* @since 2.6.0
|
|
*
|
|
* @param string $base The taxonomy base that we're going to filter
|
|
* @return string
|
|
*/
|
|
function _wp_filter_taxonomy_base( $base ) {
|
|
if ( !empty( $base ) ) {
|
|
$base = preg_replace( '|^/index\.php/|', '', $base );
|
|
$base = trim( $base, '/' );
|
|
}
|
|
return $base;
|
|
}
|
|
|
|
|
|
/**
|
|
* Resolve numeric slugs that collide with date permalinks.
|
|
*
|
|
* Permalinks of posts with numeric slugs can sometimes look to WP_Query::parse_query()
|
|
* like a date archive, as when your permalink structure is `/%year%/%postname%/` and
|
|
* a post with post_name '05' has the URL `/2015/05/`.
|
|
*
|
|
* This function detects conflicts of this type and resolves them in favor of the
|
|
* post permalink.
|
|
*
|
|
* Note that, since 4.3.0, wp_unique_post_slug() prevents the creation of post slugs
|
|
* that would result in a date archive conflict. The resolution performed in this
|
|
* function is primarily for legacy content, as well as cases when the admin has changed
|
|
* the site's permalink structure in a way that introduces URL conflicts.
|
|
*
|
|
* @since 4.3.0
|
|
*
|
|
* @param array $query_vars Optional. Query variables for setting up the loop, as determined in
|
|
* WP::parse_request(). Default empty array.
|
|
* @return array Returns the original array of query vars, with date/post conflicts resolved.
|
|
*/
|
|
function wp_resolve_numeric_slug_conflicts( $query_vars = array() ) {
|
|
if ( ! isset( $query_vars['year'] ) && ! isset( $query_vars['monthnum'] ) && ! isset( $query_vars['day'] ) ) {
|
|
return $query_vars;
|
|
}
|
|
|
|
// Identify the 'postname' position in the permastruct array.
|
|
$permastructs = array_values( array_filter( explode( '/', get_option( 'permalink_structure' ) ) ) );
|
|
$postname_index = array_search( '%postname%', $permastructs );
|
|
|
|
if ( false === $postname_index ) {
|
|
return $query_vars;
|
|
}
|
|
|
|
/*
|
|
* A numeric slug could be confused with a year, month, or day, depending on position. To account for
|
|
* the possibility of post pagination (eg 2015/2 for the second page of a post called '2015'), our
|
|
* `is_*` checks are generous: check for year-slug clashes when `is_year` *or* `is_month`, and check
|
|
* for month-slug clashes when `is_month` *or* `is_day`.
|
|
*/
|
|
$compare = '';
|
|
if ( 0 === $postname_index && ( isset( $query_vars['year'] ) || isset( $query_vars['monthnum'] ) ) ) {
|
|
$compare = 'year';
|
|
} elseif ( '%year%' === $permastructs[ $postname_index - 1 ] && ( isset( $query_vars['monthnum'] ) || isset( $query_vars['day'] ) ) ) {
|
|
$compare = 'monthnum';
|
|
} elseif ( '%monthnum%' === $permastructs[ $postname_index - 1 ] && isset( $query_vars['day'] ) ) {
|
|
$compare = 'day';
|
|
}
|
|
|
|
if ( ! $compare ) {
|
|
return $query_vars;
|
|
}
|
|
|
|
// This is the potentially clashing slug.
|
|
$value = $query_vars[ $compare ];
|
|
|
|
$post = get_page_by_path( $value, OBJECT, 'post' );
|
|
if ( ! ( $post instanceof WP_Post ) ) {
|
|
return $query_vars;
|
|
}
|
|
|
|
// If the date of the post doesn't match the date specified in the URL, resolve to the date archive.
|
|
if ( preg_match( '/^([0-9]{4})\-([0-9]{2})/', $post->post_date, $matches ) && isset( $query_vars['year'] ) && ( 'monthnum' === $compare || 'day' === $compare ) ) {
|
|
// $matches[1] is the year the post was published.
|
|
if ( intval( $query_vars['year'] ) !== intval( $matches[1] ) ) {
|
|
return $query_vars;
|
|
}
|
|
|
|
// $matches[2] is the month the post was published.
|
|
if ( 'day' === $compare && isset( $query_vars['monthnum'] ) && intval( $query_vars['monthnum'] ) !== intval( $matches[2] ) ) {
|
|
return $query_vars;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If the located post contains nextpage pagination, then the URL chunk following postname may be
|
|
* intended as the page number. Verify that it's a valid page before resolving to it.
|
|
*/
|
|
$maybe_page = '';
|
|
if ( 'year' === $compare && isset( $query_vars['monthnum'] ) ) {
|
|
$maybe_page = $query_vars['monthnum'];
|
|
} elseif ( 'monthnum' === $compare && isset( $query_vars['day'] ) ) {
|
|
$maybe_page = $query_vars['day'];
|
|
}
|
|
// Bug found in #11694 - 'page' was returning '/4'
|
|
$maybe_page = (int) trim( $maybe_page, '/' );
|
|
|
|
$post_page_count = substr_count( $post->post_content, '<!--nextpage-->' ) + 1;
|
|
|
|
// If the post doesn't have multiple pages, but a 'page' candidate is found, resolve to the date archive.
|
|
if ( 1 === $post_page_count && $maybe_page ) {
|
|
return $query_vars;
|
|
}
|
|
|
|
// If the post has multiple pages and the 'page' number isn't valid, resolve to the date archive.
|
|
if ( $post_page_count > 1 && $maybe_page > $post_page_count ) {
|
|
return $query_vars;
|
|
}
|
|
|
|
// If we've gotten to this point, we have a slug/date clash. First, adjust for nextpage.
|
|
if ( '' !== $maybe_page ) {
|
|
$query_vars['page'] = intval( $maybe_page );
|
|
}
|
|
|
|
// Next, unset autodetected date-related query vars.
|
|
unset( $query_vars['year'] );
|
|
unset( $query_vars['monthnum'] );
|
|
unset( $query_vars['day'] );
|
|
|
|
// Then, set the identified post.
|
|
$query_vars['name'] = $post->post_name;
|
|
|
|
// Finally, return the modified query vars.
|
|
return $query_vars;
|
|
}
|
|
|
|
/**
|
|
* Examine a url and try to determine the post ID it represents.
|
|
*
|
|
* Checks are supposedly from the hosted site blog.
|
|
*
|
|
* @since 1.0.0
|
|
*
|
|
* @global WP_Rewrite $wp_rewrite
|
|
* @global WP $wp
|
|
*
|
|
* @param string $url Permalink to check.
|
|
* @return int Post ID, or 0 on failure.
|
|
*/
|
|
function url_to_postid( $url ) {
|
|
global $wp_rewrite;
|
|
|
|
/**
|
|
* Filter the URL to derive the post ID from.
|
|
*
|
|
* @since 2.2.0
|
|
*
|
|
* @param string $url The URL to derive the post ID from.
|
|
*/
|
|
$url = apply_filters( 'url_to_postid', $url );
|
|
|
|
// First, check to see if there is a 'p=N' or 'page_id=N' to match against
|
|
if ( preg_match('#[?&](p|page_id|attachment_id)=(\d+)#', $url, $values) ) {
|
|
$id = absint($values[2]);
|
|
if ( $id )
|
|
return $id;
|
|
}
|
|
|
|
// Check to see if we are using rewrite rules
|
|
$rewrite = $wp_rewrite->wp_rewrite_rules();
|
|
|
|
// Not using rewrite rules, and 'p=N' and 'page_id=N' methods failed, so we're out of options
|
|
if ( empty($rewrite) )
|
|
return 0;
|
|
|
|
// Get rid of the #anchor
|
|
$url_split = explode('#', $url);
|
|
$url = $url_split[0];
|
|
|
|
// Get rid of URL ?query=string
|
|
$url_split = explode('?', $url);
|
|
$url = $url_split[0];
|
|
|
|
// Add 'www.' if it is absent and should be there
|
|
if ( false !== strpos(home_url(), '://www.') && false === strpos($url, '://www.') )
|
|
$url = str_replace('://', '://www.', $url);
|
|
|
|
// Strip 'www.' if it is present and shouldn't be
|
|
if ( false === strpos(home_url(), '://www.') )
|
|
$url = str_replace('://www.', '://', $url);
|
|
|
|
// Strip 'index.php/' if we're not using path info permalinks
|
|
if ( !$wp_rewrite->using_index_permalinks() )
|
|
$url = str_replace( $wp_rewrite->index . '/', '', $url );
|
|
|
|
if ( false !== strpos( trailingslashit( $url ), home_url( '/' ) ) ) {
|
|
// Chop off http://domain.com/[path]
|
|
$url = str_replace(home_url(), '', $url);
|
|
} else {
|
|
// Chop off /path/to/blog
|
|
$home_path = parse_url( home_url( '/' ) );
|
|
$home_path = isset( $home_path['path'] ) ? $home_path['path'] : '' ;
|
|
$url = preg_replace( sprintf( '#^%s#', preg_quote( $home_path ) ), '', trailingslashit( $url ) );
|
|
}
|
|
|
|
// Trim leading and lagging slashes
|
|
$url = trim($url, '/');
|
|
|
|
$request = $url;
|
|
$post_type_query_vars = array();
|
|
|
|
foreach ( get_post_types( array() , 'objects' ) as $post_type => $t ) {
|
|
if ( ! empty( $t->query_var ) )
|
|
$post_type_query_vars[ $t->query_var ] = $post_type;
|
|
}
|
|
|
|
// Look for matches.
|
|
$request_match = $request;
|
|
foreach ( (array)$rewrite as $match => $query) {
|
|
|
|
// If the requesting file is the anchor of the match, prepend it
|
|
// to the path info.
|
|
if ( !empty($url) && ($url != $request) && (strpos($match, $url) === 0) )
|
|
$request_match = $url . '/' . $request;
|
|
|
|
if ( preg_match("#^$match#", $request_match, $matches) ) {
|
|
|
|
if ( $wp_rewrite->use_verbose_page_rules && preg_match( '/pagename=\$matches\[([0-9]+)\]/', $query, $varmatch ) ) {
|
|
// This is a verbose page match, let's check to be sure about it.
|
|
if ( ! get_page_by_path( $matches[ $varmatch[1] ] ) )
|
|
continue;
|
|
}
|
|
|
|
// Got a match.
|
|
// Trim the query of everything up to the '?'.
|
|
$query = preg_replace("!^.+\?!", '', $query);
|
|
|
|
// Substitute the substring matches into the query.
|
|
$query = addslashes(WP_MatchesMapRegex::apply($query, $matches));
|
|
|
|
// Filter out non-public query vars
|
|
global $wp;
|
|
parse_str( $query, $query_vars );
|
|
$query = array();
|
|
foreach ( (array) $query_vars as $key => $value ) {
|
|
if ( in_array( $key, $wp->public_query_vars ) ){
|
|
$query[$key] = $value;
|
|
if ( isset( $post_type_query_vars[$key] ) ) {
|
|
$query['post_type'] = $post_type_query_vars[$key];
|
|
$query['name'] = $value;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Resolve conflicts between posts with numeric slugs and date archive queries.
|
|
$query = wp_resolve_numeric_slug_conflicts( $query );
|
|
|
|
// Do the query
|
|
$query = new WP_Query( $query );
|
|
if ( ! empty( $query->posts ) && $query->is_singular )
|
|
return $query->post->ID;
|
|
else
|
|
return 0;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|