X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/72836ec95a52eacbda4dc5aa296b7dd6de08bd3b..88550bc3400cc7c035ff590ecb007c7938041ded:/wp-includes/canonical.php

diff --git a/wp-includes/canonical.php b/wp-includes/canonical.php
index 231855ea..5b2f84d6 100644
--- a/wp-includes/canonical.php
+++ b/wp-includes/canonical.php
@@ -39,8 +39,23 @@
 function redirect_canonical( $requested_url = null, $do_redirect = true ) {
 	global $wp_rewrite, $is_IIS, $wp_query, $wpdb;
 
-	if ( is_trackback() || is_search() || is_comments_popup() || is_admin() || !empty($_POST) || is_preview() || is_robots() || ( $is_IIS && !iis7_supports_permalinks() ) )
+	if ( isset( $_SERVER['REQUEST_METHOD'] ) && ! in_array( strtoupper( $_SERVER['REQUEST_METHOD'] ), array( 'GET', 'HEAD' ) ) ) {
 		return;
+	}
+
+	// If we're not in wp-admin and the post has been published and preview nonce
+	// is non-existent or invalid then no need for preview in query
+	if ( is_preview() && get_query_var( 'p' ) && 'publish' == get_post_status( get_query_var( 'p' ) ) ) {
+		if ( ! isset( $_GET['preview_id'] )
+			|| ! isset( $_GET['preview_nonce'] )
+			|| ! wp_verify_nonce( $_GET['preview_nonce'], 'post_preview_' . (int) $_GET['preview_id'] ) ) {
+			$wp_query->is_preview = false;
+		}
+	}
+
+	if ( is_trackback() || is_search() || is_comments_popup() || is_admin() || is_preview() || is_robots() || ( $is_IIS && !iis7_supports_permalinks() ) ) {
+		return;
+	}
 
 	if ( !$requested_url ) {
 		// build the URL in the address bar
@@ -54,8 +69,8 @@ function redirect_canonical( $requested_url = null, $do_redirect = true ) {
 		return;
 
 	// Some PHP setups turn requests for / into /index.php in REQUEST_URI
-	// See: http://trac.wordpress.org/ticket/5017
-	// See: http://trac.wordpress.org/ticket/7173
+	// See: https://core.trac.wordpress.org/ticket/5017
+	// See: https://core.trac.wordpress.org/ticket/7173
 	// Disabled, for now:
 	// $original['path'] = preg_replace('|/index\.php$|', '/', $original['path']);
 
@@ -68,6 +83,11 @@ function redirect_canonical( $requested_url = null, $do_redirect = true ) {
 	if ( !isset($redirect['query']) )
 		$redirect['query'] = '';
 
+	// It's not a preview, so remove it from URL
+	if ( get_query_var( 'preview' ) ) {
+		$redirect['query'] = remove_query_arg( 'preview', $redirect['query'] );
+	}
+
 	if ( is_feed() && ( $id = get_query_var( 'p' ) ) ) {
 		if ( $redirect_url = get_post_comments_feed_link( $id, get_query_var( 'feed' ) ) ) {
 			$redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type', 'feed'), $redirect_url );
@@ -174,7 +194,7 @@ function redirect_canonical( $requested_url = null, $do_redirect = true ) {
 		} elseif ( is_category() || is_tag() || is_tax() ) { // Terms (Tags/categories)
 
 			$term_count = 0;
-			foreach ( $wp_query->tax_query->queries as $tax_query )
+			foreach ( $wp_query->tax_query->queried_terms as $tax_query )
 				$term_count += count( $tax_query['terms'] );
 
 			$obj = $wp_query->get_queried_object();
@@ -295,11 +315,13 @@ function redirect_canonical( $requested_url = null, $do_redirect = true ) {
 		}
 
 		if ( 'wp-register.php' == basename( $redirect['path'] ) ) {
-			if ( is_multisite() )
+			if ( is_multisite() ) {
 				/** This filter is documented in wp-login.php */
 				$redirect_url = apply_filters( 'wp_signup_location', network_site_url( 'wp-signup.php' ) );
-			else
+			} else {
 				$redirect_url = site_url( 'wp-login.php?action=register' );
+			}
+
 			wp_redirect( $redirect_url, 301 );
 			die();
 		}
@@ -395,7 +417,7 @@ function redirect_canonical( $requested_url = null, $do_redirect = true ) {
 		( strtolower($original['host']) != 'www.' . strtolower($redirect['host']) && 'www.' . strtolower($original['host']) != strtolower($redirect['host']) ) )
 		$redirect['host'] = $original['host'];
 
-	$compare_original = array($original['host'], $original['path']);
+	$compare_original = array( $original['host'], $original['path'] );
 
 	if ( !empty( $original['port'] ) )
 		$compare_original[] = $original['port'];
@@ -403,7 +425,7 @@ function redirect_canonical( $requested_url = null, $do_redirect = true ) {
 	if ( !empty( $original['query'] ) )
 		$compare_original[] = $original['query'];
 
-	$compare_redirect = array($redirect['host'], $redirect['path']);
+	$compare_redirect = array( $redirect['host'], $redirect['path'] );
 
 	if ( !empty( $redirect['port'] ) )
 		$compare_redirect[] = $redirect['port'];
@@ -467,9 +489,12 @@ function redirect_canonical( $requested_url = null, $do_redirect = true ) {
  * Removes arguments from a query string if they are not present in a URL
  * DO NOT use this in plugin code.
  *
- * @since 3.4
+ * @since 3.4.0
  * @access private
  *
+ * @param string $query_string
+ * @param array $args_to_check
+ * @param string $url
  * @return string The altered query string
  */
 function _remove_qs_args_if_not_in_url( $query_string, Array $args_to_check, $url ) {
@@ -490,7 +515,8 @@ function _remove_qs_args_if_not_in_url( $query_string, Array $args_to_check, $ur
  * Attempts to guess the correct URL based on query vars
  *
  * @since 2.3.0
- * @uses $wpdb
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
  *
  * @return bool|string The correct URL if one is found. False on failure.
  */
@@ -498,7 +524,7 @@ function redirect_guess_404_permalink() {
 	global $wpdb, $wp_rewrite;
 
 	if ( get_query_var('name') ) {
-		$where = $wpdb->prepare("post_name LIKE %s", like_escape( get_query_var('name') ) . '%');
+		$where = $wpdb->prepare("post_name LIKE %s", $wpdb->esc_like( get_query_var('name') ) . '%');
 
 		// if any of post_type, year, monthnum, or day are set, use them to refine the query
 		if ( get_query_var('post_type') )