diff options
Diffstat (limited to 'wp-includes/rewrite.php')
| -rw-r--r-- | wp-includes/rewrite.php | 1809 |
1 files changed, 904 insertions, 905 deletions
diff --git a/wp-includes/rewrite.php b/wp-includes/rewrite.php index eb10bf7..2f440ab 100644 --- a/wp-includes/rewrite.php +++ b/wp-includes/rewrite.php @@ -1,905 +1,904 @@ -<?php
-
-/* WP_Rewrite API
-*******************************************************************************/
-
-//Add a straight rewrite rule
-function add_rewrite_rule($regex, $redirect) {
- global $wp_rewrite;
- $wp_rewrite->add_rule($regex, $redirect);
-}
-
-//Add a new tag (like %postname%)
-//warning: you must call this on init or earlier, otherwise the query var addition stuff won't work
-function add_rewrite_tag($tagname, $regex) {
- //validation
- if (strlen($tagname) < 3 || $tagname{0} != '%' || $tagname{strlen($tagname)-1} != '%') {
- return;
- }
-
- $qv = trim($tagname, '%');
-
- global $wp_rewrite, $wp;
- $wp->add_query_var($qv);
- $wp_rewrite->add_rewrite_tag($tagname, $regex, $qv . '=');
-}
-
-//Add a new feed type like /atom1/
-function add_feed($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_' . $feedname;
- remove_action($hook, $function, 10, 1);
- add_action($hook, $function, 10, 1);
- return $hook;
-}
-
-define('EP_PERMALINK', 1 );
-define('EP_ATTACHMENT', 2 );
-define('EP_DATE', 4 );
-define('EP_YEAR', 8 );
-define('EP_MONTH', 16 );
-define('EP_DAY', 32 );
-define('EP_ROOT', 64 );
-define('EP_COMMENTS', 128 );
-define('EP_SEARCH', 256 );
-define('EP_CATEGORIES', 512 );
-define('EP_AUTHORS', 2048);
-define('EP_PAGES', 4096);
-//pseudo-places
-define('EP_NONE', 0 );
-define('EP_ALL', 8191);
-
-//and an endpoint, like /trackback/
-function add_rewrite_endpoint($name, $places) {
- global $wp_rewrite;
- $wp_rewrite->add_endpoint($name, $places);
-}
-
-// examine a url (supposedly from this blog) and try to
-// determine the post ID it represents.
-function url_to_postid($url) {
- global $wp_rewrite;
-
- $url = apply_filters('url_to_postid', $url);
-
- // First, check to see if there is a 'p=N' or 'page_id=N' to match against
- preg_match('#[?&](p|page_id)=(\d+)#', $url, $values);
- $id = intval($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;
-
- // $url cleanup by Mark Jaquith
- // This fixes things like #anchors, ?query=strings, missing 'www.',
- // added 'www.', or added 'index.php/' that will mess up our WP_Query
- // and return a false negative
-
- // Get rid of the #anchor
- $url_split = explode('#', $url);
- $url = $url_split[0];
-
- // Get rid of URL ?query=string
- $url_split = explode('?', $url);
- $url = $url_split[0];
-
- // Add 'www.' if it is absent and should be there
- if ( false !== strpos(get_option('home'), '://www.') && false === strpos($url, '://www.') )
- $url = str_replace('://', '://www.', $url);
-
- // Strip 'www.' if it is present and shouldn't be
- if ( false === strpos(get_option('home'), '://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('index.php/', '', $url);
-
- if ( false !== strpos($url, get_option('home')) ) {
- // Chop off http://domain.com
- $url = str_replace(get_option('home'), '', $url);
- } else {
- // Chop off /path/to/blog
- $home_path = parse_url(get_option('home'));
- $home_path = $home_path['path'];
- $url = str_replace($home_path, '', $url);
- }
-
- // Trim leading and lagging slashes
- $url = trim($url, '/');
-
- $request = $url;
-
- // Done with cleanup
-
- // Look for matches.
- $request_match = $request;
- foreach ($rewrite as $match => $query) {
- // If the requesting file is the anchor of the match, prepend it
- // to the path info.
- if ( (! empty($url)) && (strpos($match, $url) === 0) ) {
- $request_match = $url . '/' . $request;
- }
-
- if ( preg_match("!^$match!", $request_match, $matches) ) {
- // Got a match.
- // Trim the query of everything up to the '?'.
- $query = preg_replace("!^.+\?!", '', $query);
-
- // Substitute the substring matches into the query.
- eval("\$query = \"$query\";");
- $query = new WP_Query($query);
- if ( $query->is_single || $query->is_page )
- return $query->post->ID;
- else
- return 0;
- }
- }
- return 0;
-}
-
-/* WP_Rewrite class
-*******************************************************************************/
-
-class WP_Rewrite {
- var $permalink_structure;
- var $use_trailing_slashes;
- var $category_base;
- var $category_structure;
- var $author_base = 'author';
- var $author_structure;
- var $date_structure;
- var $page_structure;
- var $search_base = 'search';
- var $search_structure;
- var $comments_base = 'comments';
- var $feed_base = 'feed';
- var $comments_feed_structure;
- var $feed_structure;
- var $front;
- var $root = '';
- var $index = 'index.php';
- var $matches = '';
- var $rules;
- var $extra_rules; //those not generated by the class, see add_rewrite_rule()
- var $non_wp_rules; //rules that don't redirect to WP's index.php
- var $endpoints;
- var $use_verbose_rules = false;
- var $rewritecode =
- array(
- '%year%',
- '%monthnum%',
- '%day%',
- '%hour%',
- '%minute%',
- '%second%',
- '%postname%',
- '%post_id%',
- '%category%',
- '%author%',
- '%pagename%',
- '%search%'
- );
-
- var $rewritereplace =
- array(
- '([0-9]{4})',
- '([0-9]{1,2})',
- '([0-9]{1,2})',
- '([0-9]{1,2})',
- '([0-9]{1,2})',
- '([0-9]{1,2})',
- '([^/]+)',
- '([0-9]+)',
- '(.+?)',
- '(.+?)',
- '([^/]+)',
- '([^/]+)',
- '(.+)'
- );
-
- var $queryreplace =
- array (
- 'year=',
- 'monthnum=',
- 'day=',
- 'hour=',
- 'minute=',
- 'second=',
- 'name=',
- 'p=',
- 'category_name=',
- 'author_name=',
- 'pagename=',
- 's='
- );
-
- var $feeds = array ( 'feed', 'rdf', 'rss', 'rss2', 'atom' );
-
- function using_permalinks() {
- if (empty($this->permalink_structure))
- return false;
- else
- return true;
- }
-
- function using_index_permalinks() {
- if (empty($this->permalink_structure)) {
- return false;
- }
-
- // If the index is not in the permalink, we're using mod_rewrite.
- if (preg_match('#^/*' . $this->index . '#', $this->permalink_structure)) {
- return true;
- }
-
- return false;
- }
-
- function using_mod_rewrite_permalinks() {
- if ( $this->using_permalinks() && ! $this->using_index_permalinks())
- return true;
- else
- return false;
- }
-
- function preg_index($number) {
- $match_prefix = '$';
- $match_suffix = '';
-
- if (! empty($this->matches)) {
- $match_prefix = '$' . $this->matches . '[';
- $match_suffix = ']';
- }
-
- return "$match_prefix$number$match_suffix";
- }
-
- function page_rewrite_rules() {
- $uris = get_option('page_uris');
- $attachment_uris = get_option('page_attachment_uris');
-
- $rewrite_rules = array();
- $page_structure = $this->get_page_permastruct();
- if( is_array( $attachment_uris ) ) {
- foreach ($attachment_uris as $uri => $pagename) {
- $this->add_rewrite_tag('%pagename%', "($uri)", 'attachment=');
- $rewrite_rules = array_merge($rewrite_rules, $this->generate_rewrite_rules($page_structure, EP_PAGES));
- }
- }
- if( is_array( $uris ) ) {
- foreach ($uris as $uri => $pagename) {
- $this->add_rewrite_tag('%pagename%', "($uri)", 'pagename=');
- $rewrite_rules = array_merge($rewrite_rules, $this->generate_rewrite_rules($page_structure, EP_PAGES));
- }
- }
-
- return $rewrite_rules;
- }
-
- function get_date_permastruct() {
- if (isset($this->date_structure)) {
- return $this->date_structure;
- }
-
- if (empty($this->permalink_structure)) {
- $this->date_structure = '';
- return false;
- }
-
- // The date permalink must have year, month, and day separated by slashes.
- $endians = array('%year%/%monthnum%/%day%', '%day%/%monthnum%/%year%', '%monthnum%/%day%/%year%');
-
- $this->date_structure = '';
- $date_endian = '';
-
- foreach ($endians as $endian) {
- if (false !== strpos($this->permalink_structure, $endian)) {
- $date_endian= $endian;
- break;
- }
- }
-
- if ( empty($date_endian) )
- $date_endian = '%year%/%monthnum%/%day%';
-
- // Do not allow the date tags and %post_id% to overlap in the permalink
- // structure. If they do, move the date tags to $front/date/.
- $front = $this->front;
- preg_match_all('/%.+?%/', $this->permalink_structure, $tokens);
- $tok_index = 1;
- foreach ($tokens[0] as $token) {
- if ( ($token == '%post_id%') && ($tok_index <= 3) ) {
- $front = $front . 'date/';
- break;
- }
- $tok_index++;
- }
-
- $this->date_structure = $front . $date_endian;
-
- return $this->date_structure;
- }
-
- function get_year_permastruct() {
- $structure = $this->get_date_permastruct($this->permalink_structure);
-
- if (empty($structure)) {
- return false;
- }
-
- $structure = str_replace('%monthnum%', '', $structure);
- $structure = str_replace('%day%', '', $structure);
-
- $structure = preg_replace('#/+#', '/', $structure);
-
- return $structure;
- }
-
- function get_month_permastruct() {
- $structure = $this->get_date_permastruct($this->permalink_structure);
-
- if (empty($structure)) {
- return false;
- }
-
- $structure = str_replace('%day%', '', $structure);
-
- $structure = preg_replace('#/+#', '/', $structure);
-
- return $structure;
- }
-
- function get_day_permastruct() {
- return $this->get_date_permastruct($this->permalink_structure);
- }
-
- function get_category_permastruct() {
- if (isset($this->category_structure)) {
- return $this->category_structure;
- }
-
- if (empty($this->permalink_structure)) {
- $this->category_structure = '';
- return false;
- }
-
- if (empty($this->category_base))
- $this->category_structure = $this->front . 'category/';
- else
- $this->category_structure = $this->category_base . '/';
-
- $this->category_structure .= '%category%';
-
- return $this->category_structure;
- }
-
- function get_author_permastruct() {
- if (isset($this->author_structure)) {
- return $this->author_structure;
- }
-
- if (empty($this->permalink_structure)) {
- $this->author_structure = '';
- return false;
- }
-
- $this->author_structure = $this->front . $this->author_base . '/%author%';
-
- return $this->author_structure;
- }
-
- function get_search_permastruct() {
- if (isset($this->search_structure)) {
- return $this->search_structure;
- }
-
- if (empty($this->permalink_structure)) {
- $this->search_structure = '';
- return false;
- }
-
- $this->search_structure = $this->root . $this->search_base . '/%search%';
-
- return $this->search_structure;
- }
-
- function get_page_permastruct() {
- if (isset($this->page_structure)) {
- return $this->page_structure;
- }
-
- if (empty($this->permalink_structure)) {
- $this->page_structure = '';
- return false;
- }
-
- $this->page_structure = $this->root . '%pagename%';
-
- return $this->page_structure;
- }
-
- function get_feed_permastruct() {
- if (isset($this->feed_structure)) {
- return $this->feed_structure;
- }
-
- if (empty($this->permalink_structure)) {
- $this->feed_structure = '';
- return false;
- }
-
- $this->feed_structure = $this->root . $this->feed_base . '/%feed%';
-
- return $this->feed_structure;
- }
-
- function get_comment_feed_permastruct() {
- if (isset($this->comment_feed_structure)) {
- return $this->comment_feed_structure;
- }
-
- if (empty($this->permalink_structure)) {
- $this->comment_feed_structure = '';
- return false;
- }
-
- $this->comment_feed_structure = $this->root . $this->comments_base . '/' . $this->feed_base . '/%feed%';
-
- return $this->comment_feed_structure;
- }
-
- function add_rewrite_tag($tag, $pattern, $query) {
- // If the tag already exists, replace the existing pattern and query for
- // that tag, otherwise add the new tag, pattern, and query to the end of
- // the arrays.
- $position = array_search($tag, $this->rewritecode);
- if (FALSE !== $position && NULL !== $position) {
- $this->rewritereplace[$position] = $pattern;
- $this->queryreplace[$position] = $query;
- } else {
- $this->rewritecode[] = $tag;
- $this->rewritereplace[] = $pattern;
- $this->queryreplace[] = $query;
- }
- }
-
- //the main WP_Rewrite function. generate the rules from permalink structure
- function generate_rewrite_rules($permalink_structure, $ep_mask = EP_NONE, $paged = true, $feed = true, $forcomments = false, $walk_dirs = true, $endpoints = true) {
- //build a regex to match the feed section of URLs, something like (feed|atom|rss|rss2)/?
- $feedregex2 = '';
- foreach ($this->feeds as $feed_name) {
- $feedregex2 .= $feed_name . '|';
- }
- $feedregex2 = '(' . trim($feedregex2, '|') . ')/?$';
- //$feedregex is identical but with /feed/ added on as well, so URLs like <permalink>/feed/atom
- //and <permalink>/atom are both possible
- $feedregex = $this->feed_base . '/' . $feedregex2;
-
- //build a regex to match the trackback and page/xx parts of URLs
- $trackbackregex = 'trackback/?$';
- $pageregex = 'page/?([0-9]{1,})/?$';
-
- //build up an array of endpoint regexes to append => queries to append
- if ($endpoints) {
- $ep_query_append = array ();
- foreach ($this->endpoints as $endpoint) {
- //match everything after the endpoint name, but allow for nothing to appear there
- $epmatch = $endpoint[1] . '(/(.*))?/?$';
- //this will be appended on to the rest of the query for each dir
- $epquery = '&' . $endpoint[1] . '=';
- $ep_query_append[$epmatch] = array ( $endpoint[0], $epquery );
- }
- }
-
- //get everything up to the first rewrite tag
- $front = substr($permalink_structure, 0, strpos($permalink_structure, '%'));
- //build an array of the tags (note that said array ends up being in $tokens[0])
- preg_match_all('/%.+?%/', $permalink_structure, $tokens);
-
- $num_tokens = count($tokens[0]);
-
- $index = $this->index; //probably 'index.php'
- $feedindex = $index;
- $trackbackindex = $index;
- //build a list from the rewritecode and queryreplace arrays, that will look something like
- //tagname=$matches[i] where i is the current $i
- for ($i = 0; $i < $num_tokens; ++$i) {
- if (0 < $i) {
- $queries[$i] = $queries[$i - 1] . '&';
- }
-
- $query_token = str_replace($this->rewritecode, $this->queryreplace, $tokens[0][$i]) . $this->preg_index($i+1);
- $queries[$i] .= $query_token;
- }
-
- //get the structure, minus any cruft (stuff that isn't tags) at the front
- $structure = $permalink_structure;
- if ($front != '/') {
- $structure = str_replace($front, '', $structure);
- }
- //create a list of dirs to walk over, making rewrite rules for each level
- //so for example, a $structure of /%year%/%month%/%postname% would create
- //rewrite rules for /%year%/, /%year%/%month%/ and /%year%/%month%/%postname%
- $structure = trim($structure, '/');
- if ($walk_dirs) {
- $dirs = explode('/', $structure);
- } else {
- $dirs[] = $structure;
- }
- $num_dirs = count($dirs);
-
- //strip slashes from the front of $front
- $front = preg_replace('|^/+|', '', $front);
-
- //the main workhorse loop
- $post_rewrite = array();
- $struct = $front;
- for ($j = 0; $j < $num_dirs; ++$j) {
- //get the struct for this dir, and trim slashes off the front
- $struct .= $dirs[$j] . '/'; //accumulate. see comment near explode('/', $structure) above
- $struct = ltrim($struct, '/');
- //replace tags with regexes
- $match = str_replace($this->rewritecode, $this->rewritereplace, $struct);
- //make a list of tags, and store how many there are in $num_toks
- $num_toks = preg_match_all('/%.+?%/', $struct, $toks);
- //get the 'tagname=$matches[i]'
- $query = $queries[$num_toks - 1];
-
- //set up $ep_mask_specific which is used to match more specific URL types
- switch ($dirs[$j]) {
- case '%year%': $ep_mask_specific = EP_YEAR; break;
- case '%monthnum%': $ep_mask_specific = EP_MONTH; break;
- case '%day%': $ep_mask_specific = EP_DAY; break;
- }
-
- //create query for /page/xx
- $pagematch = $match . $pageregex;
- $pagequery = $index . '?' . $query . '&paged=' . $this->preg_index($num_toks + 1);
-
- //create query for /feed/(feed|atom|rss|rss2|rdf)
- $feedmatch = $match . $feedregex;
- $feedquery = $feedindex . '?' . $query . '&feed=' . $this->preg_index($num_toks + 1);
-
- //create query for /(feed|atom|rss|rss2|rdf) (see comment near creation of $feedregex)
- $feedmatch2 = $match . $feedregex2;
- $feedquery2 = $feedindex . '?' . $query . '&feed=' . $this->preg_index($num_toks + 1);
-
- //if asked to, turn the feed queries into comment feed ones
- if ($forcomments) {
- $feedquery .= '&withcomments=1';
- $feedquery2 .= '&withcomments=1';
- }
-
- //start creating the array of rewrites for this dir
- $rewrite = array();
- if ($feed) //...adding on /feed/ regexes => queries
- $rewrite = array($feedmatch => $feedquery, $feedmatch2 => $feedquery2);
- if ($paged) //...and /page/xx ones
- $rewrite = array_merge($rewrite, array($pagematch => $pagequery));
-
- //do endpoints
- if ($endpoints) {
- foreach ($ep_query_append as $regex => $ep) {
- //add the endpoints on if the mask fits
- if ($ep[0] & $ep_mask || $ep[0] & $ep_mask_specific) {
- $rewrite[$match . $regex] = $index . '?' . $query . $ep[1] . $this->preg_index($num_toks + 2);
- }
- }
- }
-
- //if we've got some tags in this dir
- if ($num_toks) {
- $post = false;
- $page = false;
-
- //check to see if this dir is permalink-level: i.e. the structure specifies an
- //individual post. Do this by checking it contains at least one of 1) post name,
- //2) post ID, 3) page name, 4) timestamp (year, month, day, hour, second and
- //minute all present). Set these flags now as we need them for the endpoints.
- if (strpos($struct, '%postname%') !== false || strpos($struct, '%post_id%') !== false
- || strpos($struct, '%pagename%') !== false
- || (strpos($struct, '%year%') !== false && strpos($struct, '%monthnum%') !== false && strpos($struct, '%day%') !== false && strpos($struct, '%hour%') !== false && strpos($struct, '%minute%') !== false && strpos($struct, '%second%') !== false)) {
- $post = true;
- if (strpos($struct, '%pagename%') !== false)
- $page = true;
- }
-
- //if we're creating rules for a permalink, do all the endpoints like attachments etc
- if ($post) {
- $post = true;
- //create query and regex for trackback
- $trackbackmatch = $match . $trackbackregex;
- $trackbackquery = $trackbackindex . '?' . $query . '&tb=1';
- //trim slashes from the end of the regex for this dir
- $match = rtrim($match, '/');
- //get rid of brackets
- $submatchbase = str_replace(array('(',')'),'',$match);
-
- //add a rule for at attachments, which take the form of <permalink>/some-text
- $sub1 = $submatchbase . '/([^/]+)/';
- $sub1tb = $sub1 . $trackbackregex; //add trackback regex <permalink>/trackback/...
- $sub1feed = $sub1 . $feedregex; //and <permalink>/feed/(atom|...)
- $sub1feed2 = $sub1 . $feedregex2; //and <permalink>/(feed|atom...)
- //add an ? as we don't have to match that last slash, and finally a $ so we
- //match to the end of the URL
-
- //add another rule to match attachments in the explicit form:
- //<permalink>/attachment/some-text
- $sub2 = $submatchbase . '/attachment/([^/]+)/';
- $sub2tb = $sub2 . $trackbackregex; //and add trackbacks <permalink>/attachment/trackback
- $sub2feed = $sub2 . $feedregex; //feeds, <permalink>/attachment/feed/(atom|...)
- $sub2feed2 = $sub2 . $feedregex2; //and feeds again on to this <permalink>/attachment/(feed|atom...)
-
- //create queries for these extra tag-ons we've just dealt with
- $subquery = $index . '?attachment=' . $this->preg_index(1);
- $subtbquery = $subquery . '&tb=1';
- $subfeedquery = $subquery . '&feed=' . $this->preg_index(2);
-
- //do endpoints for attachments
- if ($endpoint) { foreach ($ep_query_append as $regex => $ep) {
- if ($ep[0] & EP_ATTACHMENT) {
- $rewrite[$sub1 . $regex] = $subquery . '?' . $ep[1] . $this->preg_index(2);
- $rewrite[$sub2 . $regex] = $subquery . '?' . $ep[1] . $this->preg_index(2);
- }
- } }
-
- //now we've finished with endpoints, finish off the $sub1 and $sub2 matches
- $sub1 .= '?$';
- $sub2 .= '?$';
-
- //allow URLs like <permalink>/2 for <permalink>/page/2
- $match = $match . '(/[0-9]+)?/?$';
- $query = $index . '?' . $query . '&page=' . $this->preg_index($num_toks + 1);
- } else { //not matching a permalink so this is a lot simpler
- //close the match and finalise the query
- $match .= '?$';
- $query = $index . '?' . $query;
- }
-
- //create the final array for this dir by joining the $rewrite array (which currently
- //only contains rules/queries for trackback, pages etc) to the main regex/query for
- //this dir
- $rewrite = array_merge($rewrite, array($match => $query));
-
- //if we're matching a permalink, add those extras (attachments etc) on
- if ($post) {
- //add trackback
- $rewrite = array_merge(array($trackbackmatch => $trackbackquery), $rewrite);
-
- //add regexes/queries for attachments, attachment trackbacks and so on
- if ( ! $page ) //require <permalink>/attachment/stuff form for pages because of confusion with subpages
- $rewrite = array_merge($rewrite, array($sub1 => $subquery, $sub1tb => $subtbquery, $sub1feed => $subfeedquery, $sub1feed2 => $subfeedquery));
- $rewrite = array_merge($rewrite, array($sub2 => $subquery, $sub2tb => $subtbquery, $sub2feed => $subfeedquery, $sub2feed2 => $subfeedquery));
- }
- } //if($num_toks)
- //add the rules for this dir to the accumulating $post_rewrite
- $post_rewrite = array_merge($rewrite, $post_rewrite);
- } //foreach ($dir)
- return $post_rewrite; //the finished rules. phew!
- }
-
- function generate_rewrite_rule($permalink_structure, $walk_dirs = false) {
- return $this->generate_rewrite_rules($permalink_structure, EP_NONE, false, false, false, $walk_dirs);
- }
-
- /* rewrite_rules
- * Construct rewrite matches and queries from permalink structure.
- * Returns an associate array of matches and queries.
- */
- function rewrite_rules() {
- $rewrite = array();
-
- if (empty($this->permalink_structure)) {
- return $rewrite;
- }
-
- // robots.txt
- $robots_rewrite = array('robots.txt$' => $this->index . '?robots=1');
-
- //Default Feed rules - These are require to allow for the direct access files to work with permalink structure starting with %category%
- $default_feeds = array( 'wp-atom.php$' => $this->index .'?feed=atom',
- 'wp-rdf.php$' => $this->index .'?feed=rdf',
- 'wp-rss.php$' => $this->index .'?feed=rss',
- 'wp-rss2.php$' => $this->index .'?feed=rss2',
- 'wp-feed.php$' => $this->index .'?feed=feed',
- 'wp-commentsrss2.php$' => $this->index . '?feed=rss2&withcomments=1');
-
- // Post
- $post_rewrite = $this->generate_rewrite_rules($this->permalink_structure, EP_PERMALINK);
- $post_rewrite = apply_filters('post_rewrite_rules', $post_rewrite);
-
- // Date
- $date_rewrite = $this->generate_rewrite_rules($this->get_date_permastruct(), EP_DATE);
- $date_rewrite = apply_filters('date_rewrite_rules', $date_rewrite);
-
- // Root
- $root_rewrite = $this->generate_rewrite_rules($this->root . '/', EP_ROOT);
- $root_rewrite = apply_filters('root_rewrite_rules', $root_rewrite);
-
- // Comments
- $comments_rewrite = $this->generate_rewrite_rules($this->root . $this->comments_base, EP_COMMENTS, true, true, true, false);
- $comments_rewrite = apply_filters('comments_rewrite_rules', $comments_rewrite);
-
- // Search
- $search_structure = $this->get_search_permastruct();
- $search_rewrite = $this->generate_rewrite_rules($search_structure, EP_SEARCH);
- $search_rewrite = apply_filters('search_rewrite_rules', $search_rewrite);
-
- // Categories
- $category_rewrite = $this->generate_rewrite_rules($this->get_category_permastruct(), EP_CATEGORIES);
- $category_rewrite = apply_filters('category_rewrite_rules', $category_rewrite);
-
- // Authors
- $author_rewrite = $this->generate_rewrite_rules($this->get_author_permastruct(), EP_AUTHORS);
- $author_rewrite = apply_filters('author_rewrite_rules', $author_rewrite);
-
- // Pages
- $page_rewrite = $this->page_rewrite_rules();
- $page_rewrite = apply_filters('page_rewrite_rules', $page_rewrite);
-
- // Put them together.
- $this->rules = array_merge($robots_rewrite, $default_feeds, $page_rewrite, $root_rewrite, $comments_rewrite, $search_rewrite, $category_rewrite, $author_rewrite, $date_rewrite, $post_rewrite, $this->extra_rules);
-
- do_action_ref_array('generate_rewrite_rules', array(&$this));
- $this->rules = apply_filters('rewrite_rules_array', $this->rules);
-
- return $this->rules;
- }
-
- function wp_rewrite_rules() {
- $this->rules = get_option('rewrite_rules');
- if ( empty($this->rules) ) {
- $this->matches = 'matches';
- $this->rewrite_rules();
- update_option('rewrite_rules', $this->rules);
- }
-
- return $this->rules;
- }
-
- function mod_rewrite_rules() {
- if ( ! $this->using_permalinks()) {
- return '';
- }
-
- $site_root = parse_url(get_option('siteurl'));
- $site_root = trailingslashit($site_root['path']);
-
- $home_root = parse_url(get_option('home'));
- $home_root = trailingslashit($home_root['path']);
-
- $rules = "<IfModule mod_rewrite.c>\n";
- $rules .= "RewriteEngine On\n";
- $rules .= "RewriteBase $home_root\n";
-
- //add in the rules that don't redirect to WP's index.php (and thus shouldn't be handled by WP at all)
- foreach ($this->non_wp_rules as $match => $query) {
- // Apache 1.3 does not support the reluctant (non-greedy) modifier.
- $match = str_replace('.+?', '.+', $match);
-
- // If the match is unanchored and greedy, prepend rewrite conditions
- // to avoid infinite redirects and eclipsing of real files.
- if ($match == '(.+)/?$' || $match == '([^/]+)/?$' ) {
- //nada.
- }
-
- $rules .= 'RewriteRule ^' . $match . ' ' . $home_root . $query . " [QSA,L]\n";
- }
-
- if ($this->use_verbose_rules) {
- $this->matches = '';
- $rewrite = $this->rewrite_rules();
- $num_rules = count($rewrite);
- $rules .= "RewriteCond %{REQUEST_FILENAME} -f [OR]\n" .
- "RewriteCond %{REQUEST_FILENAME} -d\n" .
- "RewriteRule ^.*$ - [S=$num_rules]\n";
-
- foreach ($rewrite as $match => $query) {
- // Apache 1.3 does not support the reluctant (non-greedy) modifier.
- $match = str_replace('.+?', '.+', $match);
-
- // If the match is unanchored and greedy, prepend rewrite conditions
- // to avoid infinite redirects and eclipsing of real files.
- if ($match == '(.+)/?$' || $match == '([^/]+)/?$' ) {
- //nada.
- }
-
- if (strpos($query, $this->index) !== false) {
- $rules .= 'RewriteRule ^' . $match . ' ' . $home_root . $query . " [QSA,L]\n";
- } else {
- $rules .= 'RewriteRule ^' . $match . ' ' . $site_root . $query . " [QSA,L]\n";
- }
- }
- } else {
- $rules .= "RewriteCond %{REQUEST_FILENAME} !-f\n" .
- "RewriteCond %{REQUEST_FILENAME} !-d\n" .
- "RewriteRule . {$home_root}{$this->index} [L]\n";
- }
-
- $rules .= "</IfModule>\n";
-
- $rules = apply_filters('mod_rewrite_rules', $rules);
- $rules = apply_filters('rewrite_rules', $rules); // Deprecated
-
- return $rules;
- }
-
- //Add a straight rewrite rule
- function add_rule($regex, $redirect) {
- //get everything up to the first ?
- $index = (strpos($redirect, '?') == false ? strlen($redirect) : strpos($redirect, '?'));
- $front = substr($redirect, 0, $index);
- if ($front != $this->index) { //it doesn't redirect to WP's index.php
- $this->add_external_rule($regex, $redirect);
- } else {
- $this->extra_rules[$regex] = $redirect;
- }
- }
-
- //add a rule that doesn't redirect to index.php
- function add_external_rule($regex, $redirect) {
- $this->non_wp_rules[$regex] = $redirect;
- }
-
- //add an endpoint, like /trackback/, to be inserted after certain URL types (specified in $places)
- function add_endpoint($name, $places) {
- global $wp;
- $this->endpoints[] = array ( $places, $name );
- $wp->add_query_var($name);
- }
-
- function flush_rules() {
- generate_page_uri_index();
- delete_option('rewrite_rules');
- $this->wp_rewrite_rules();
- if ( function_exists('save_mod_rewrite_rules') )
- save_mod_rewrite_rules();
- }
-
- function init() {
- $this->extra_rules = $this->non_wp_rules = $this->endpoints = array();
- $this->permalink_structure = get_option('permalink_structure');
- $this->front = substr($this->permalink_structure, 0, strpos($this->permalink_structure, '%'));
- $this->root = '';
- if ($this->using_index_permalinks()) {
- $this->root = $this->index . '/';
- }
- $this->category_base = get_option( 'category_base' );
- unset($this->category_structure);
- unset($this->author_structure);
- unset($this->date_structure);
- unset($this->page_structure);
- unset($this->search_structure);
- unset($this->feed_structure);
- unset($this->comment_feed_structure);
- $this->use_trailing_slashes = ( substr($this->permalink_structure, -1, 1) == '/' ) ? true : false;
- }
-
- function set_permalink_structure($permalink_structure) {
- if ($permalink_structure != $this->permalink_structure) {
- update_option('permalink_structure', $permalink_structure);
- $this->init();
- }
- }
-
- function set_category_base($category_base) {
- if ($category_base != $this->category_base) {
- update_option('category_base', $category_base);
- $this->init();
- }
- }
-
- function WP_Rewrite() {
- $this->init();
- }
-}
-
-?>
+<?php + +/* WP_Rewrite API +*******************************************************************************/ + +//Add a straight rewrite rule +function add_rewrite_rule($regex, $redirect) { + global $wp_rewrite; + $wp_rewrite->add_rule($regex, $redirect); +} + +//Add a new tag (like %postname%) +//warning: you must call this on init or earlier, otherwise the query var addition stuff won't work +function add_rewrite_tag($tagname, $regex) { + //validation + if (strlen($tagname) < 3 || $tagname{0} != '%' || $tagname{strlen($tagname)-1} != '%') { + return; + } + + $qv = trim($tagname, '%'); + + global $wp_rewrite, $wp; + $wp->add_query_var($qv); + $wp_rewrite->add_rewrite_tag($tagname, $regex, $qv . '='); +} + +//Add a new feed type like /atom1/ +function add_feed($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_' . $feedname; + remove_action($hook, $function, 10, 1); + add_action($hook, $function, 10, 1); + return $hook; +} + +define('EP_PERMALINK', 1 ); +define('EP_ATTACHMENT', 2 ); +define('EP_DATE', 4 ); +define('EP_YEAR', 8 ); +define('EP_MONTH', 16 ); +define('EP_DAY', 32 ); +define('EP_ROOT', 64 ); +define('EP_COMMENTS', 128 ); +define('EP_SEARCH', 256 ); +define('EP_CATEGORIES', 512 ); +define('EP_AUTHORS', 1024); +define('EP_PAGES', 2048); +//pseudo-places +define('EP_NONE', 0 ); +define('EP_ALL', 4095); + +//and an endpoint, like /trackback/ +function add_rewrite_endpoint($name, $places) { + global $wp_rewrite; + $wp_rewrite->add_endpoint($name, $places); +} + +// examine a url (supposedly from this blog) and try to +// determine the post ID it represents. +function url_to_postid($url) { + global $wp_rewrite; + + $url = apply_filters('url_to_postid', $url); + + // First, check to see if there is a 'p=N' or 'page_id=N' to match against + preg_match('#[?&](p|page_id)=(\d+)#', $url, $values); + $id = intval($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; + + // $url cleanup by Mark Jaquith + // This fixes things like #anchors, ?query=strings, missing 'www.', + // added 'www.', or added 'index.php/' that will mess up our WP_Query + // and return a false negative + + // Get rid of the #anchor + $url_split = explode('#', $url); + $url = $url_split[0]; + + // Get rid of URL ?query=string + $url_split = explode('?', $url); + $url = $url_split[0]; + + // Add 'www.' if it is absent and should be there + if ( false !== strpos(get_option('home'), '://www.') && false === strpos($url, '://www.') ) + $url = str_replace('://', '://www.', $url); + + // Strip 'www.' if it is present and shouldn't be + if ( false === strpos(get_option('home'), '://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('index.php/', '', $url); + + if ( false !== strpos($url, get_option('home')) ) { + // Chop off http://domain.com + $url = str_replace(get_option('home'), '', $url); + } else { + // Chop off /path/to/blog + $home_path = parse_url(get_option('home')); + $home_path = $home_path['path']; + $url = str_replace($home_path, '', $url); + } + + // Trim leading and lagging slashes + $url = trim($url, '/'); + + $request = $url; + + // Done with cleanup + + // Look for matches. + $request_match = $request; + foreach ($rewrite as $match => $query) { + // If the requesting file is the anchor of the match, prepend it + // to the path info. + if ( (! empty($url)) && (strpos($match, $url) === 0) ) { + $request_match = $url . '/' . $request; + } + + if ( preg_match("!^$match!", $request_match, $matches) ) { + // Got a match. + // Trim the query of everything up to the '?'. + $query = preg_replace("!^.+\?!", '', $query); + + // Substitute the substring matches into the query. + eval("\$query = \"$query\";"); + $query = new WP_Query($query); + if ( $query->is_single || $query->is_page ) + return $query->post->ID; + else + return 0; + } + } + return 0; +} + +/* WP_Rewrite class +*******************************************************************************/ + +class WP_Rewrite { + var $permalink_structure; + var $use_trailing_slashes; + var $category_base; + var $category_structure; + var $author_base = 'author'; + var $author_structure; + var $date_structure; + var $page_structure; + var $search_base = 'search'; + var $search_structure; + var $comments_base = 'comments'; + var $feed_base = 'feed'; + var $comments_feed_structure; + var $feed_structure; + var $front; + var $root = ''; + var $index = 'index.php'; + var $matches = ''; + var $rules; + var $extra_rules; //those not generated by the class, see add_rewrite_rule() + var $non_wp_rules; //rules that don't redirect to WP's index.php + var $endpoints; + var $use_verbose_rules = false; + var $rewritecode = + array( + '%year%', + '%monthnum%', + '%day%', + '%hour%', + '%minute%', + '%second%', + '%postname%', + '%post_id%', + '%category%', + '%author%', + '%pagename%', + '%search%' + ); + + var $rewritereplace = + array( + '([0-9]{4})', + '([0-9]{1,2})', + '([0-9]{1,2})', + '([0-9]{1,2})', + '([0-9]{1,2})', + '([0-9]{1,2})', + '([^/]+)', + '([0-9]+)', + '(.+?)', + '([^/]+)', + '([^/]+)', + '(.+)' + ); + + var $queryreplace = + array ( + 'year=', + 'monthnum=', + 'day=', + 'hour=', + 'minute=', + 'second=', + 'name=', + 'p=', + 'category_name=', + 'author_name=', + 'pagename=', + 's=' + ); + + var $feeds = array ( 'feed', 'rdf', 'rss', 'rss2', 'atom' ); + + function using_permalinks() { + if (empty($this->permalink_structure)) + return false; + else + return true; + } + + function using_index_permalinks() { + if (empty($this->permalink_structure)) { + return false; + } + + // If the index is not in the permalink, we're using mod_rewrite. + if (preg_match('#^/*' . $this->index . '#', $this->permalink_structure)) { + return true; + } + + return false; + } + + function using_mod_rewrite_permalinks() { + if ( $this->using_permalinks() && ! $this->using_index_permalinks()) + return true; + else + return false; + } + + function preg_index($number) { + $match_prefix = '$'; + $match_suffix = ''; + + if (! empty($this->matches)) { + $match_prefix = '$' . $this->matches . '['; + $match_suffix = ']'; + } + + return "$match_prefix$number$match_suffix"; + } + + function page_rewrite_rules() { + $uris = get_option('page_uris'); + $attachment_uris = get_option('page_attachment_uris'); + + $rewrite_rules = array(); + $page_structure = $this->get_page_permastruct(); + if( is_array( $attachment_uris ) ) { + foreach ($attachment_uris as $uri => $pagename) { + $this->add_rewrite_tag('%pagename%', "($uri)", 'attachment='); + $rewrite_rules = array_merge($rewrite_rules, $this->generate_rewrite_rules($page_structure, EP_PAGES)); + } + } + if( is_array( $uris ) ) { + foreach ($uris as $uri => $pagename) { + $this->add_rewrite_tag('%pagename%', "($uri)", 'pagename='); + $rewrite_rules = array_merge($rewrite_rules, $this->generate_rewrite_rules($page_structure, EP_PAGES)); + } + } + + return $rewrite_rules; + } + + function get_date_permastruct() { + if (isset($this->date_structure)) { + return $this->date_structure; + } + + if (empty($this->permalink_structure)) { + $this->date_structure = ''; + return false; + } + + // The date permalink must have year, month, and day separated by slashes. + $endians = array('%year%/%monthnum%/%day%', '%day%/%monthnum%/%year%', '%monthnum%/%day%/%year%'); + + $this->date_structure = ''; + $date_endian = ''; + + foreach ($endians as $endian) { + if (false !== strpos($this->permalink_structure, $endian)) { + $date_endian= $endian; + break; + } + } + + if ( empty($date_endian) ) + $date_endian = '%year%/%monthnum%/%day%'; + + // Do not allow the date tags and %post_id% to overlap in the permalink + // structure. If they do, move the date tags to $front/date/. + $front = $this->front; + preg_match_all('/%.+?%/', $this->permalink_structure, $tokens); + $tok_index = 1; + foreach ($tokens[0] as $token) { + if ( ($token == '%post_id%') && ($tok_index <= 3) ) { + $front = $front . 'date/'; + break; + } + $tok_index++; + } + + $this->date_structure = $front . $date_endian; + + return $this->date_structure; + } + + function get_year_permastruct() { + $structure = $this->get_date_permastruct($this->permalink_structure); + + if (empty($structure)) { + return false; + } + + $structure = str_replace('%monthnum%', '', $structure); + $structure = str_replace('%day%', '', $structure); + + $structure = preg_replace('#/+#', '/', $structure); + + return $structure; + } + + function get_month_permastruct() { + $structure = $this->get_date_permastruct($this->permalink_structure); + + if (empty($structure)) { + return false; + } + + $structure = str_replace('%day%', '', $structure); + + $structure = preg_replace('#/+#', '/', $structure); + + return $structure; + } + + function get_day_permastruct() { + return $this->get_date_permastruct($this->permalink_structure); + } + + function get_category_permastruct() { + if (isset($this->category_structure)) { + return $this->category_structure; + } + + if (empty($this->permalink_structure)) { + $this->category_structure = ''; + return false; + } + + if (empty($this->category_base)) + $this->category_structure = $this->front . 'category/'; + else + $this->category_structure = $this->category_base . '/'; + + $this->category_structure .= '%category%'; + + return $this->category_structure; + } + + function get_author_permastruct() { + if (isset($this->author_structure)) { + return $this->author_structure; + } + + if (empty($this->permalink_structure)) { + $this->author_structure = ''; + return false; + } + + $this->author_structure = $this->front . $this->author_base . '/%author%'; + + return $this->author_structure; + } + + function get_search_permastruct() { + if (isset($this->search_structure)) { + return $this->search_structure; + } + + if (empty($this->permalink_structure)) { + $this->search_structure = ''; + return false; + } + + $this->search_structure = $this->root . $this->search_base . '/%search%'; + + return $this->search_structure; + } + + function get_page_permastruct() { + if (isset($this->page_structure)) { + return $this->page_structure; + } + + if (empty($this->permalink_structure)) { + $this->page_structure = ''; + return false; + } + + $this->page_structure = $this->root . '%pagename%'; + + return $this->page_structure; + } + + function get_feed_permastruct() { + if (isset($this->feed_structure)) { + return $this->feed_structure; + } + + if (empty($this->permalink_structure)) { + $this->feed_structure = ''; + return false; + } + + $this->feed_structure = $this->root . $this->feed_base . '/%feed%'; + + return $this->feed_structure; + } + + function get_comment_feed_permastruct() { + if (isset($this->comment_feed_structure)) { + return $this->comment_feed_structure; + } + + if (empty($this->permalink_structure)) { + $this->comment_feed_structure = ''; + return false; + } + + $this->comment_feed_structure = $this->root . $this->comments_base . '/' . $this->feed_base . '/%feed%'; + + return $this->comment_feed_structure; + } + + function add_rewrite_tag($tag, $pattern, $query) { + // If the tag already exists, replace the existing pattern and query for + // that tag, otherwise add the new tag, pattern, and query to the end of + // the arrays. + $position = array_search($tag, $this->rewritecode); + if (FALSE !== $position && NULL !== $position) { + $this->rewritereplace[$position] = $pattern; + $this->queryreplace[$position] = $query; + } else { + $this->rewritecode[] = $tag; + $this->rewritereplace[] = $pattern; + $this->queryreplace[] = $query; + } + } + + //the main WP_Rewrite function. generate the rules from permalink structure + function generate_rewrite_rules($permalink_structure, $ep_mask = EP_NONE, $paged = true, $feed = true, $forcomments = false, $walk_dirs = true, $endpoints = true) { + //build a regex to match the feed section of URLs, something like (feed|atom|rss|rss2)/? + $feedregex2 = ''; + foreach ($this->feeds as $feed_name) { + $feedregex2 .= $feed_name . '|'; + } + $feedregex2 = '(' . trim($feedregex2, '|') . ')/?$'; + //$feedregex is identical but with /feed/ added on as well, so URLs like <permalink>/feed/atom + //and <permalink>/atom are both possible + $feedregex = $this->feed_base . '/' . $feedregex2; + + //build a regex to match the trackback and page/xx parts of URLs + $trackbackregex = 'trackback/?$'; + $pageregex = 'page/?([0-9]{1,})/?$'; + + //build up an array of endpoint regexes to append => queries to append + if ($endpoints) { + $ep_query_append = array (); + foreach ($this->endpoints as $endpoint) { + //match everything after the endpoint name, but allow for nothing to appear there + $epmatch = $endpoint[1] . '(/(.*))?/?$'; + //this will be appended on to the rest of the query for each dir + $epquery = '&' . $endpoint[1] . '='; + $ep_query_append[$epmatch] = array ( $endpoint[0], $epquery ); + } + } + + //get everything up to the first rewrite tag + $front = substr($permalink_structure, 0, strpos($permalink_structure, '%')); + //build an array of the tags (note that said array ends up being in $tokens[0]) + preg_match_all('/%.+?%/', $permalink_structure, $tokens); + + $num_tokens = count($tokens[0]); + + $index = $this->index; //probably 'index.php' + $feedindex = $index; + $trackbackindex = $index; + //build a list from the rewritecode and queryreplace arrays, that will look something like + //tagname=$matches[i] where i is the current $i + for ($i = 0; $i < $num_tokens; ++$i) { + if (0 < $i) { + $queries[$i] = $queries[$i - 1] . '&'; + } + + $query_token = str_replace($this->rewritecode, $this->queryreplace, $tokens[0][$i]) . $this->preg_index($i+1); + $queries[$i] .= $query_token; + } + + //get the structure, minus any cruft (stuff that isn't tags) at the front + $structure = $permalink_structure; + if ($front != '/') { + $structure = str_replace($front, '', $structure); + } + //create a list of dirs to walk over, making rewrite rules for each level + //so for example, a $structure of /%year%/%month%/%postname% would create + //rewrite rules for /%year%/, /%year%/%month%/ and /%year%/%month%/%postname% + $structure = trim($structure, '/'); + if ($walk_dirs) { + $dirs = explode('/', $structure); + } else { + $dirs[] = $structure; + } + $num_dirs = count($dirs); + + //strip slashes from the front of $front + $front = preg_replace('|^/+|', '', $front); + + //the main workhorse loop + $post_rewrite = array(); + $struct = $front; + for ($j = 0; $j < $num_dirs; ++$j) { + //get the struct for this dir, and trim slashes off the front + $struct .= $dirs[$j] . '/'; //accumulate. see comment near explode('/', $structure) above + $struct = ltrim($struct, '/'); + //replace tags with regexes + $match = str_replace($this->rewritecode, $this->rewritereplace, $struct); + //make a list of tags, and store how many there are in $num_toks + $num_toks = preg_match_all('/%.+?%/', $struct, $toks); + //get the 'tagname=$matches[i]' + $query = $queries[$num_toks - 1]; + + //set up $ep_mask_specific which is used to match more specific URL types + switch ($dirs[$j]) { + case '%year%': $ep_mask_specific = EP_YEAR; break; + case '%monthnum%': $ep_mask_specific = EP_MONTH; break; + case '%day%': $ep_mask_specific = EP_DAY; break; + } + + //create query for /page/xx + $pagematch = $match . $pageregex; + $pagequery = $index . '?' . $query . '&paged=' . $this->preg_index($num_toks + 1); + + //create query for /feed/(feed|atom|rss|rss2|rdf) + $feedmatch = $match . $feedregex; + $feedquery = $feedindex . '?' . $query . '&feed=' . $this->preg_index($num_toks + 1); + + //create query for /(feed|atom|rss|rss2|rdf) (see comment near creation of $feedregex) + $feedmatch2 = $match . $feedregex2; + $feedquery2 = $feedindex . '?' . $query . '&feed=' . $this->preg_index($num_toks + 1); + + //if asked to, turn the feed queries into comment feed ones + if ($forcomments) { + $feedquery .= '&withcomments=1'; + $feedquery2 .= '&withcomments=1'; + } + + //start creating the array of rewrites for this dir + $rewrite = array(); + if ($feed) //...adding on /feed/ regexes => queries + $rewrite = array($feedmatch => $feedquery, $feedmatch2 => $feedquery2); + if ($paged) //...and /page/xx ones + $rewrite = array_merge($rewrite, array($pagematch => $pagequery)); + + //do endpoints + if ($endpoints) { + foreach ($ep_query_append as $regex => $ep) { + //add the endpoints on if the mask fits + if ($ep[0] & $ep_mask || $ep[0] & $ep_mask_specific) { + $rewrite[$match . $regex] = $index . '?' . $query . $ep[1] . $this->preg_index($num_toks + 2); + } + } + } + + //if we've got some tags in this dir + if ($num_toks) { + $post = false; + $page = false; + + //check to see if this dir is permalink-level: i.e. the structure specifies an + //individual post. Do this by checking it contains at least one of 1) post name, + //2) post ID, 3) page name, 4) timestamp (year, month, day, hour, second and + //minute all present). Set these flags now as we need them for the endpoints. + if (strpos($struct, '%postname%') !== false || strpos($struct, '%post_id%') !== false + || strpos($struct, '%pagename%') !== false + || (strpos($struct, '%year%') !== false && strpos($struct, '%monthnum%') !== false && strpos($struct, '%day%') !== false && strpos($struct, '%hour%') !== false && strpos($struct, '%minute%') !== false && strpos($struct, '%second%') !== false)) { + $post = true; + if (strpos($struct, '%pagename%') !== false) + $page = true; + } + + //if we're creating rules for a permalink, do all the endpoints like attachments etc + if ($post) { + $post = true; + //create query and regex for trackback + $trackbackmatch = $match . $trackbackregex; + $trackbackquery = $trackbackindex . '?' . $query . '&tb=1'; + //trim slashes from the end of the regex for this dir + $match = rtrim($match, '/'); + //get rid of brackets + $submatchbase = str_replace(array('(',')'),'',$match); + + //add a rule for at attachments, which take the form of <permalink>/some-text + $sub1 = $submatchbase . '/([^/]+)/'; + $sub1tb = $sub1 . $trackbackregex; //add trackback regex <permalink>/trackback/... + $sub1feed = $sub1 . $feedregex; //and <permalink>/feed/(atom|...) + $sub1feed2 = $sub1 . $feedregex2; //and <permalink>/(feed|atom...) + //add an ? as we don't have to match that last slash, and finally a $ so we + //match to the end of the URL + + //add another rule to match attachments in the explicit form: + //<permalink>/attachment/some-text + $sub2 = $submatchbase . '/attachment/([^/]+)/'; + $sub2tb = $sub2 . $trackbackregex; //and add trackbacks <permalink>/attachment/trackback + $sub2feed = $sub2 . $feedregex; //feeds, <permalink>/attachment/feed/(atom|...) + $sub2feed2 = $sub2 . $feedregex2; //and feeds again on to this <permalink>/attachment/(feed|atom...) + + //create queries for these extra tag-ons we've just dealt with + $subquery = $index . '?attachment=' . $this->preg_index(1); + $subtbquery = $subquery . '&tb=1'; + $subfeedquery = $subquery . '&feed=' . $this->preg_index(2); + + //do endpoints for attachments + if ($endpoint) { foreach ($ep_query_append as $regex => $ep) { + if ($ep[0] & EP_ATTACHMENT) { + $rewrite[$sub1 . $regex] = $subquery . '?' . $ep[1] . $this->preg_index(2); + $rewrite[$sub2 . $regex] = $subquery . '?' . $ep[1] . $this->preg_index(2); + } + } } + + //now we've finished with endpoints, finish off the $sub1 and $sub2 matches + $sub1 .= '?$'; + $sub2 .= '?$'; + + //allow URLs like <permalink>/2 for <permalink>/page/2 + $match = $match . '(/[0-9]+)?/?$'; + $query = $index . '?' . $query . '&page=' . $this->preg_index($num_toks + 1); + } else { //not matching a permalink so this is a lot simpler + //close the match and finalise the query + $match .= '?$'; + $query = $index . '?' . $query; + } + + //create the final array for this dir by joining the $rewrite array (which currently + //only contains rules/queries for trackback, pages etc) to the main regex/query for + //this dir + $rewrite = array_merge($rewrite, array($match => $query)); + + //if we're matching a permalink, add those extras (attachments etc) on + if ($post) { + //add trackback + $rewrite = array_merge(array($trackbackmatch => $trackbackquery), $rewrite); + + //add regexes/queries for attachments, attachment trackbacks and so on + if ( ! $page ) //require <permalink>/attachment/stuff form for pages because of confusion with subpages + $rewrite = array_merge($rewrite, array($sub1 => $subquery, $sub1tb => $subtbquery, $sub1feed => $subfeedquery, $sub1feed2 => $subfeedquery)); + $rewrite = array_merge($rewrite, array($sub2 => $subquery, $sub2tb => $subtbquery, $sub2feed => $subfeedquery, $sub2feed2 => $subfeedquery)); + } + } //if($num_toks) + //add the rules for this dir to the accumulating $post_rewrite + $post_rewrite = array_merge($rewrite, $post_rewrite); + } //foreach ($dir) + return $post_rewrite; //the finished rules. phew! + } + + function generate_rewrite_rule($permalink_structure, $walk_dirs = false) { + return $this->generate_rewrite_rules($permalink_structure, EP_NONE, false, false, false, $walk_dirs); + } + + /* rewrite_rules + * Construct rewrite matches and queries from permalink structure. + * Returns an associate array of matches and queries. + */ + function rewrite_rules() { + $rewrite = array(); + + if (empty($this->permalink_structure)) { + return $rewrite; + } + + // robots.txt + $robots_rewrite = array('robots.txt$' => $this->index . '?robots=1'); + + //Default Feed rules - These are require to allow for the direct access files to work with permalink structure starting with %category% + $default_feeds = array( 'wp-atom.php$' => $this->index .'?feed=atom', + 'wp-rdf.php$' => $this->index .'?feed=rdf', + 'wp-rss.php$' => $this->index .'?feed=rss', + 'wp-rss2.php$' => $this->index .'?feed=rss2', + 'wp-feed.php$' => $this->index .'?feed=feed', + 'wp-commentsrss2.php$' => $this->index . '?feed=rss2&withcomments=1'); + + // Post + $post_rewrite = $this->generate_rewrite_rules($this->permalink_structure, EP_PERMALINK); + $post_rewrite = apply_filters('post_rewrite_rules', $post_rewrite); + + // Date + $date_rewrite = $this->generate_rewrite_rules($this->get_date_permastruct(), EP_DATE); + $date_rewrite = apply_filters('date_rewrite_rules', $date_rewrite); + + // Root + $root_rewrite = $this->generate_rewrite_rules($this->root . '/', EP_ROOT); + $root_rewrite = apply_filters('root_rewrite_rules', $root_rewrite); + + // Comments + $comments_rewrite = $this->generate_rewrite_rules($this->root . $this->comments_base, EP_COMMENTS, true, true, true, false); + $comments_rewrite = apply_filters('comments_rewrite_rules', $comments_rewrite); + + // Search + $search_structure = $this->get_search_permastruct(); + $search_rewrite = $this->generate_rewrite_rules($search_structure, EP_SEARCH); + $search_rewrite = apply_filters('search_rewrite_rules', $search_rewrite); + + // Categories + $category_rewrite = $this->generate_rewrite_rules($this->get_category_permastruct(), EP_CATEGORIES); + $category_rewrite = apply_filters('category_rewrite_rules', $category_rewrite); + + // Authors + $author_rewrite = $this->generate_rewrite_rules($this->get_author_permastruct(), EP_AUTHORS); + $author_rewrite = apply_filters('author_rewrite_rules', $author_rewrite); + + // Pages + $page_rewrite = $this->page_rewrite_rules(); + $page_rewrite = apply_filters('page_rewrite_rules', $page_rewrite); + + // Put them together. + $this->rules = array_merge($robots_rewrite, $default_feeds, $page_rewrite, $root_rewrite, $comments_rewrite, $search_rewrite, $category_rewrite, $author_rewrite, $date_rewrite, $post_rewrite, $this->extra_rules); + + do_action_ref_array('generate_rewrite_rules', array(&$this)); + $this->rules = apply_filters('rewrite_rules_array', $this->rules); + + return $this->rules; + } + + function wp_rewrite_rules() { + $this->rules = get_option('rewrite_rules'); + if ( empty($this->rules) ) { + $this->matches = 'matches'; + $this->rewrite_rules(); + update_option('rewrite_rules', $this->rules); + } + + return $this->rules; + } + + function mod_rewrite_rules() { + if ( ! $this->using_permalinks()) { + return ''; + } + + $site_root = parse_url(get_option('siteurl')); + $site_root = trailingslashit($site_root['path']); + + $home_root = parse_url(get_option('home')); + $home_root = trailingslashit($home_root['path']); + + $rules = "<IfModule mod_rewrite.c>\n"; + $rules .= "RewriteEngine On\n"; + $rules .= "RewriteBase $home_root\n"; + + //add in the rules that don't redirect to WP's index.php (and thus shouldn't be handled by WP at all) + foreach ($this->non_wp_rules as $match => $query) { + // Apache 1.3 does not support the reluctant (non-greedy) modifier. + $match = str_replace('.+?', '.+', $match); + + // If the match is unanchored and greedy, prepend rewrite conditions + // to avoid infinite redirects and eclipsing of real files. + if ($match == '(.+)/?$' || $match == '([^/]+)/?$' ) { + //nada. + } + + $rules .= 'RewriteRule ^' . $match . ' ' . $home_root . $query . " [QSA,L]\n"; + } + + if ($this->use_verbose_rules) { + $this->matches = ''; + $rewrite = $this->rewrite_rules(); + $num_rules = count($rewrite); + $rules .= "RewriteCond %{REQUEST_FILENAME} -f [OR]\n" . + "RewriteCond %{REQUEST_FILENAME} -d\n" . + "RewriteRule ^.*$ - [S=$num_rules]\n"; + + foreach ($rewrite as $match => $query) { + // Apache 1.3 does not support the reluctant (non-greedy) modifier. + $match = str_replace('.+?', '.+', $match); + + // If the match is unanchored and greedy, prepend rewrite conditions + // to avoid infinite redirects and eclipsing of real files. + if ($match == '(.+)/?$' || $match == '([^/]+)/?$' ) { + //nada. + } + + if (strpos($query, $this->index) !== false) { + $rules .= 'RewriteRule ^' . $match . ' ' . $home_root . $query . " [QSA,L]\n"; + } else { + $rules .= 'RewriteRule ^' . $match . ' ' . $site_root . $query . " [QSA,L]\n"; + } + } + } else { + $rules .= "RewriteCond %{REQUEST_FILENAME} !-f\n" . + "RewriteCond %{REQUEST_FILENAME} !-d\n" . + "RewriteRule . {$home_root}{$this->index} [L]\n"; + } + + $rules .= "</IfModule>\n"; + + $rules = apply_filters('mod_rewrite_rules', $rules); + $rules = apply_filters('rewrite_rules', $rules); // Deprecated + + return $rules; + } + + //Add a straight rewrite rule + function add_rule($regex, $redirect) { + //get everything up to the first ? + $index = (strpos($redirect, '?') == false ? strlen($redirect) : strpos($redirect, '?')); + $front = substr($redirect, 0, $index); + if ($front != $this->index) { //it doesn't redirect to WP's index.php + $this->add_external_rule($regex, $redirect); + } else { + $this->extra_rules[$regex] = $redirect; + } + } + + //add a rule that doesn't redirect to index.php + function add_external_rule($regex, $redirect) { + $this->non_wp_rules[$regex] = $redirect; + } + + //add an endpoint, like /trackback/, to be inserted after certain URL types (specified in $places) + function add_endpoint($name, $places) { + global $wp; + $this->endpoints[] = array ( $places, $name ); + $wp->add_query_var($name); + } + + function flush_rules() { + generate_page_uri_index(); + delete_option('rewrite_rules'); + $this->wp_rewrite_rules(); + if ( function_exists('save_mod_rewrite_rules') ) + save_mod_rewrite_rules(); + } + + function init() { + $this->extra_rules = $this->non_wp_rules = $this->endpoints = array(); + $this->permalink_structure = get_option('permalink_structure'); + $this->front = substr($this->permalink_structure, 0, strpos($this->permalink_structure, '%')); + $this->root = ''; + if ($this->using_index_permalinks()) { + $this->root = $this->index . '/'; + } + $this->category_base = get_option('category_base'); + unset($this->category_structure); + unset($this->author_structure); + unset($this->date_structure); + unset($this->page_structure); + unset($this->search_structure); + unset($this->feed_structure); + unset($this->comment_feed_structure); + $this->use_trailing_slashes = ( substr($this->permalink_structure, -1, 1) == '/' ) ? true : false; + } + + function set_permalink_structure($permalink_structure) { + if ($permalink_structure != $this->permalink_structure) { + update_option('permalink_structure', $permalink_structure); + $this->init(); + } + } + + function set_category_base($category_base) { + if ($category_base != $this->category_base) { + update_option('category_base', $category_base); + $this->init(); + } + } + + function WP_Rewrite() { + $this->init(); + } +} + +?> |