/**
* Examine a url and try to determine the post ID it represents.
*
* Checks are supposedly from the hosted site blog.
*
* @since 0.0.1
*
* @global HQ_Rewrite $hq_rewrite
* @global HQ $hq
*
* @param string $url Permalink to check.
* @return int Post ID, or 0 on failure.
*/
function url_to_postid($url)
{
global $hq_rewrite;
/**
* Filter the URL to derive the post ID from.
*
* @since 0.0.1
*
* @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 = $hq_rewrite->hq_rewrite_rules();
// Not using rewrite rules, and 'p=N' and 'page_id=N' methods failed, so we're out of options
if (empty($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.', '://', $url);
}
// Strip 'index.php/' if we're not using path info permalinks
if (!$hq_rewrite->using_index_permalinks()) {
$url = str_replace($hq_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, $matches)) {
if ($hq_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.
$query = addslashes(HQ_MatchesMapRegex::apply($query, $matches));
// Filter out non-public query vars
global $hq;
parse_str($query, $query_vars);
$query = array();
foreach ((array) $query_vars as $key => $value) {
if (in_array($key, $hq->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.
$query = hq_resolve_numeric_slug_conflicts($query);
// Do the query
$query = new HQ_Query($query);
if (!empty($query->posts) && $query->is_singular) {
return $query->post->ID;
} else {
return 0;
}
}
}
return 0;
}
/**
* Parse request to find correct WordPress query.
*
* Sets up the query variables based on the request. There are also many
* filters and actions that can be used to further manipulate the result.
*
* @since 0.0.1
*
* @global HQ_Rewrite $hq_rewrite
*
* @param array|string $extra_query_vars Set the extra query variables.
*/
public function parse_request($extra_query_vars = '')
{
global $hq_rewrite;
/**
* Filter whether to parse the request.
*
* @since 0.0.1
*
* @param bool $bool Whether or not to parse the request. Default true.
* @param HQ $this Current WordPress environment instance.
* @param array|string $extra_query_vars Extra passed query variables.
*/
if (!apply_filters('do_parse_request', true, $this, $extra_query_vars)) {
return;
}
$this->query_vars = array();
$post_type_query_vars = array();
if (is_array($extra_query_vars)) {
$this->extra_query_vars =& $extra_query_vars;
} elseif (!empty($extra_query_vars)) {
parse_str($extra_query_vars, $this->extra_query_vars);
}
// Process PATH_INFO, REQUEST_URI, and 404 for permalinks.
// Fetch the rewrite rules.
$rewrite = $hq_rewrite->hq_rewrite_rules();
if (!empty($rewrite)) {
// If we match a rewrite rule, this will be cleared.
$error = '404';
$this->did_permalink = true;
$pathinfo = isset($_SERVER['PATH_INFO']) ? $_SERVER['PATH_INFO'] : '';
list($pathinfo) = explode('?', $pathinfo);
$pathinfo = str_replace("%", "%25", $pathinfo);
list($req_uri) = explode('?', $_SERVER['REQUEST_URI']);
$self = $_SERVER['PHP_SELF'];
$home_path = trim(parse_url(home_url(), PHP_URL_PATH), '/');
$home_path_regex = sprintf('|^%s|i', preg_quote($home_path, '|'));
// Trim path info from the end and the leading home path from the
// front. For path info requests, this leaves us with the requesting
// filename, if any. For 404 requests, this leaves us with the
// requested permalink.
$req_uri = str_replace($pathinfo, '', $req_uri);
$req_uri = trim($req_uri, '/');
$req_uri = preg_replace($home_path_regex, '', $req_uri);
$req_uri = trim($req_uri, '/');
$pathinfo = trim($pathinfo, '/');
$pathinfo = preg_replace($home_path_regex, '', $pathinfo);
$pathinfo = trim($pathinfo, '/');
$self = trim($self, '/');
$self = preg_replace($home_path_regex, '', $self);
$self = trim($self, '/');
// The requested permalink is in $pathinfo for path info requests and
// $req_uri for other requests.
if (!empty($pathinfo) && !preg_match('|^.*' . $hq_rewrite->index . '$|', $pathinfo)) {
$request = $pathinfo;
} else {
// If the request uri is the index, blank it out so that we don't try to match it against a rule.
if ($req_uri == $hq_rewrite->index) {
$req_uri = '';
}
$request = $req_uri;
}
$this->request = $request;
// Look for matches.
$request_match = $request;
if (empty($request_match)) {
// An empty request could only match against ^$ regex
if (isset($rewrite['$'])) {
$this->matched_rule = '$';
$query = $rewrite['$'];
$matches = array('');
}
} else {
foreach ((array) $rewrite as $match => $query) {
// If the requesting file is the anchor of the match, prepend it to the path info.
if (!empty($req_uri) && strpos($match, $req_uri) === 0 && $req_uri != $request) {
$request_match = $req_uri . '/' . $request;
}
if (preg_match("#^{$match}#", $request_match, $matches) || preg_match("#^{$match}#", urldecode($request_match), $matches)) {
if ($hq_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.
$this->matched_rule = $match;
break;
}
}
}
if (isset($this->matched_rule)) {
// Trim the query of everything up to the '?'.
$query = preg_replace("!^.+\\?!", '', $query);
// Substitute the substring matches into the query.
$query = addslashes(HQ_MatchesMapRegex::apply($query, $matches));
$this->matched_query = $query;
// Parse the query.
parse_str($query, $perma_query_vars);
// If we're processing a 404 request, clear the error var since we found something.
if ('404' == $error) {
unset($error, $_GET['error']);
}
}
// If req_uri is empty or if it is a request for ourself, unset error.
if (empty($request) || $req_uri == $self || strpos($_SERVER['PHP_SELF'], 'hq-admin/') !== false) {
unset($error, $_GET['error']);
if (isset($perma_query_vars) && strpos($_SERVER['PHP_SELF'], 'hq-admin/') !== false) {
unset($perma_query_vars);
}
$this->did_permalink = false;
}
}
/**
* Filter the query variables whitelist before processing.
*
* Allows (publicly allowed) query vars to be added, removed, or changed prior
* to executing the query. Needed to allow custom rewrite rules using your own arguments
* to work, or any other custom query variables you want to be publicly available.
*
* @since 0.0.1
*
* @param array $public_query_vars The array of whitelisted query variables.
*/
$this->public_query_vars = apply_filters('query_vars', $this->public_query_vars);
foreach (get_post_types(array(), 'objects') as $post_type => $t) {
if ($t->query_var) {
$post_type_query_vars[$t->query_var] = $post_type;
}
}
foreach ($this->public_query_vars as $hqvar) {
if (isset($this->extra_query_vars[$hqvar])) {
$this->query_vars[$hqvar] = $this->extra_query_vars[$hqvar];
} elseif (isset($_POST[$hqvar])) {
$this->query_vars[$hqvar] = $_POST[$hqvar];
} elseif (isset($_GET[$hqvar])) {
$this->query_vars[$hqvar] = $_GET[$hqvar];
} elseif (isset($perma_query_vars[$hqvar])) {
$this->query_vars[$hqvar] = $perma_query_vars[$hqvar];
}
if (!empty($this->query_vars[$hqvar])) {
if (!is_array($this->query_vars[$hqvar])) {
$this->query_vars[$hqvar] = (string) $this->query_vars[$hqvar];
} else {
foreach ($this->query_vars[$hqvar] as $vkey => $v) {
if (!is_object($v)) {
$this->query_vars[$hqvar][$vkey] = (string) $v;
}
}
}
if (isset($post_type_query_vars[$hqvar])) {
$this->query_vars['post_type'] = $post_type_query_vars[$hqvar];
$this->query_vars['name'] = $this->query_vars[$hqvar];
}
}
}
// Convert urldecoded spaces back into +
//TODO: Goyo no taxonomies
//foreach ( get_taxonomies( array() , 'objects' ) as $taxonomy => $t )
// if ( $t->query_var && isset( $this->query_vars[$t->query_var] ) )
// $this->query_vars[$t->query_var] = str_replace( ' ', '+', $this->query_vars[$t->query_var] );
// Limit publicly queried post_types to those that are publicly_queryable
if (isset($this->query_vars['post_type'])) {
$queryable_post_types = get_post_types(array('publicly_queryable' => true));
if (!is_array($this->query_vars['post_type'])) {
if (!in_array($this->query_vars['post_type'], $queryable_post_types)) {
unset($this->query_vars['post_type']);
}
} else {
$this->query_vars['post_type'] = array_intersect($this->query_vars['post_type'], $queryable_post_types);
}
}
// Resolve conflicts between posts with numeric slugs and date archive queries.
$this->query_vars = hq_resolve_numeric_slug_conflicts($this->query_vars);
foreach ((array) $this->private_query_vars as $var) {
if (isset($this->extra_query_vars[$var])) {
$this->query_vars[$var] = $this->extra_query_vars[$var];
}
}
if (isset($error)) {
$this->query_vars['error'] = $error;
}
/**
* Filter the array of parsed query variables.
*
* @since 0.0.1
*
* @param array $query_vars The array of requested query variables.
*/
$this->query_vars = apply_filters('request', $this->query_vars);
/**
* Fires once all query variables for the current request have been parsed.
*
* @since 0.0.1
*
* @param HQ &$this Current WordPress environment instance (passed by reference).
*/
do_action_ref_array('parse_request', array(&$this));
}