balmet.com

rewrite.php (19213B)

---

 <?php
 /**
  * WordPress Rewrite API
  *
  * @package WordPress
  * @subpackage Rewrite
  */
 
 /**
  * Endpoint mask that matches nothing.
  *
  * @since 2.1.0
  */
 define( 'EP_NONE', 0 );
 
 /**
  * Endpoint mask that matches post permalinks.
  *
  * @since 2.1.0
  */
 define( 'EP_PERMALINK', 1 );
 
 /**
  * Endpoint mask that matches attachment permalinks.
  *
  * @since 2.1.0
  */
 define( 'EP_ATTACHMENT', 2 );
 
 /**
  * Endpoint mask that matches any date archives.
  *
  * @since 2.1.0
  */
 define( 'EP_DATE', 4 );
 
 /**
  * Endpoint mask that matches yearly archives.
  *
  * @since 2.1.0
  */
 define( 'EP_YEAR', 8 );
 
 /**
  * Endpoint mask that matches monthly archives.
  *
  * @since 2.1.0
  */
 define( 'EP_MONTH', 16 );
 
 /**
  * Endpoint mask that matches daily archives.
  *
  * @since 2.1.0
  */
 define( 'EP_DAY', 32 );
 
 /**
  * Endpoint mask that matches the site root.
  *
  * @since 2.1.0
  */
 define( 'EP_ROOT', 64 );
 
 /**
  * Endpoint mask that matches comment feeds.
  *
  * @since 2.1.0
  */
 define( 'EP_COMMENTS', 128 );
 
 /**
  * Endpoint mask that matches searches.
  *
  * Note that this only matches a search at a "pretty" URL such as
  * `/search/my-search-term`, not `?s=my-search-term`.
  *
  * @since 2.1.0
  */
 define( 'EP_SEARCH', 256 );
 
 /**
  * Endpoint mask that matches category archives.
  *
  * @since 2.1.0
  */
 define( 'EP_CATEGORIES', 512 );
 
 /**
  * Endpoint mask that matches tag archives.
  *
  * @since 2.3.0
  */
 define( 'EP_TAGS', 1024 );
 
 /**
  * Endpoint mask that matches author archives.
  *
  * @since 2.1.0
  */
 define( 'EP_AUTHORS', 2048 );
 
 /**
  * Endpoint mask that matches pages.
  *
  * @since 2.1.0
  */
 define( 'EP_PAGES', 4096 );
 
 /**
  * Endpoint mask that matches all archive views.
  *
  * @since 3.7.0
  */
 define( 'EP_ALL_ARCHIVES', EP_DATE | EP_YEAR | EP_MONTH | EP_DAY | EP_CATEGORIES | EP_TAGS | EP_AUTHORS );
 
 /**
  * Endpoint mask that matches everything.
  *
  * @since 2.1.0
  */
 define( 'EP_ALL', EP_PERMALINK | EP_ATTACHMENT | EP_ROOT | EP_COMMENTS | EP_SEARCH | EP_PAGES | EP_ALL_ARCHIVES );
 
 /**
  * Adds a rewrite rule that transforms a URL structure to a set of query vars.
  *
  * Any value in the $after parameter that isn't 'bottom' will result in the rule
  * being placed at the top of the rewrite rules.
  *
  * @since 2.1.0
  * @since 4.4.0 Array support was added to the `$query` parameter.
  *
  * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
  *
  * @param string       $regex Regular expression to match request against.
  * @param string|array $query The corresponding query vars for this rewrite rule.
  * @param string       $after Optional. Priority of the new rule. Accepts 'top'
  *                            or 'bottom'. Default 'bottom'.
  */
 function add_rewrite_rule( $regex, $query, $after = 'bottom' ) {
 	global $wp_rewrite;
 
 	$wp_rewrite->add_rule( $regex, $query, $after );
 }
 
 /**
  * Add a new rewrite tag (like %postname%).
  *
  * The `$query` parameter is optional. If it is omitted you must ensure that you call
  * this on, or before, the {@see 'init'} hook. This is because `$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 WordPress rewrite component.
  * @global WP         $wp         Current WordPress environment instance.
  *
  * @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 Optional. String to append to the rewritten query. Must end in '='. Default empty.
  */
 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 );
 }
 
 /**
  * Removes an existing rewrite tag (like %postname%).
  *
  * @since 4.5.0
  *
  * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
  *
  * @param string $tag Name of the rewrite tag.
  */
 function remove_rewrite_tag( $tag ) {
 	global $wp_rewrite;
 	$wp_rewrite->remove_rewrite_tag( $tag );
 }
 
 /**
  * Add permalink structure.
  *
  * @since 3.0.0
  *
  * @see WP_Rewrite::add_permastruct()
  * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
  *
  * @param string $name   Name for permalink structure.
  * @param string $struct Permalink structure.
  * @param array  $args   Optional. Arguments for building the rules from the permalink structure,
  *                       see WP_Rewrite::add_permastruct() for full details. Default empty array.
  */
 function add_permastruct( $name, $struct, $args = array() ) {
 	global $wp_rewrite;
 
 	// Back-compat 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 );
 }
 
 /**
  * Removes a permalink structure.
  *
  * Can only be used to remove permastructs that were added using add_permastruct().
  * Built-in permastructs cannot be removed.
  *
  * @since 4.5.0
  *
  * @see WP_Rewrite::remove_permastruct()
  * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
  *
  * @param string $name Name for permalink structure.
  */
 function remove_permastruct( $name ) {
 	global $wp_rewrite;
 
 	$wp_rewrite->remove_permastruct( $name );
 }
 
 /**
  * Add a new feed type like /atom1/.
  *
  * @since 2.1.0
  *
  * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
  *
  * @param string   $feedname Feed name.
  * @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, true ) ) {
 		$wp_rewrite->feeds[] = $feedname;
 	}
 
 	$hook = 'do_feed_' . $feedname;
 
 	// Remove default function hook.
 	remove_action( $hook, $hook );
 
 	add_action( $hook, $function, 10, 2 );
 
 	return $hook;
 }
 
 /**
  * Remove rewrite rules and then recreate rewrite rules.
  *
  * @since 3.0.0
  *
  * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
  *
  * @param bool $hard Whether to update .htaccess (hard flush) or just update
  *                   rewrite_rules option (soft flush). Default is true (hard).
  */
 function flush_rewrite_rules( $hard = true ) {
 	global $wp_rewrite;
 
 	if ( is_callable( array( $wp_rewrite, 'flush_rules' ) ) ) {
 		$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 WordPress rewrite component.
  *
  * @param string      $name      Name of the endpoint.
  * @param int         $places    Endpoint mask describing the places the endpoint should be added.
  *                               Accepts a mask of:
  *                               - `EP_ALL`
  *                               - `EP_NONE`
  *                               - `EP_ALL_ARCHIVES`
  *                               - `EP_ATTACHMENT`
  *                               - `EP_AUTHORS`
  *                               - `EP_CATEGORIES`
  *                               - `EP_COMMENTS`
  *                               - `EP_DATE`
  *                               - `EP_DAY`
  *                               - `EP_MONTH`
  *                               - `EP_PAGES`
  *                               - `EP_PERMALINK`
  *                               - `EP_ROOT`
  *                               - `EP_SEARCH`
  *                               - `EP_TAGS`
  *                               - `EP_YEAR`
  * @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 );
 }
 
 /**
  * Filters 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, true );
 
 	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 ( $postname_index && '%year%' === $permastructs[ $postname_index - 1 ] && ( isset( $query_vars['monthnum'] ) || isset( $query_vars['day'] ) ) ) {
 		$compare = 'monthnum';
 	} elseif ( $postname_index && '%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 ( (int) $query_vars['year'] !== (int) $matches[1] ) {
 			return $query_vars;
 		}
 
 		// $matches[2] is the month the post was published.
 		if ( 'day' === $compare && isset( $query_vars['monthnum'] ) && (int) $query_vars['monthnum'] !== (int) $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'] = (int) $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 WordPress rewrite component.
  * @global WP         $wp         Current WordPress environment instance.
  *
  * @param string $url Permalink to check.
  * @return int Post ID, or 0 on failure.
  */
 function url_to_postid( $url ) {
 	global $wp_rewrite;
 
 	/**
 	 * Filters 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 );
 
 	$url_host      = str_replace( 'www.', '', parse_url( $url, PHP_URL_HOST ) );
 	$home_url_host = str_replace( 'www.', '', parse_url( home_url(), PHP_URL_HOST ) );
 
 	// Bail early if the URL does not belong to this site.
 	if ( $url_host && $url_host !== $home_url_host ) {
 		return 0;
 	}
 
 	// 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;
 		}
 	}
 
 	// 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];
 
 	// Set the correct URL scheme.
 	$scheme = parse_url( home_url(), PHP_URL_SCHEME );
 	$url    = set_url_scheme( $url, $scheme );
 
 	// 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 );
 	}
 
 	if ( trim( $url, '/' ) === home_url() && 'page' === get_option( 'show_on_front' ) ) {
 		$page_on_front = get_option( 'page_on_front' );
 
 		if ( $page_on_front && get_post( $page_on_front ) instanceof WP_Post ) {
 			return (int) $page_on_front;
 		}
 	}
 
 	// 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;
 	}
 
 	// 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.
 				$page = get_page_by_path( $matches[ $varmatch[1] ] );
 				if ( ! $page ) {
 					continue;
 				}
 
 				$post_status_obj = get_post_status_object( $page->post_status );
 				if ( ! $post_status_obj->public && ! $post_status_obj->protected
 					&& ! $post_status_obj->private && $post_status_obj->exclude_from_search ) {
 					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( (string) $key, $wp->public_query_vars, true ) ) {
 					$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;
 }