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wp/wp-includes/canonical.php
changeset 9 177826044cd9
parent 7 cf61fcea0001
child 16 a86126ab1dd4
equal deleted inserted replaced
8:c7c34916027a 9:177826044cd9 
    30  *
 
    30  *
 
    31  * @global WP_Rewrite $wp_rewrite
 
    31  * @global WP_Rewrite $wp_rewrite
 
    32  * @global bool $is_IIS
 
    32  * @global bool $is_IIS
 
    33  * @global WP_Query $wp_query
 
    33  * @global WP_Query $wp_query
 
    34  * @global wpdb $wpdb WordPress database abstraction object.
 
    34  * @global wpdb $wpdb WordPress database abstraction object.
 
    35  * @global WP $wp Current WordPress environment instance. 
    35  * @global WP $wp Current WordPress environment instance.
 
    36  *
 
    36  *
 
    37  * @param string $requested_url Optional. The URL that was requested, used to
 
    37  * @param string $requested_url Optional. The URL that was requested, used to
 
    38  *		figure if redirect is needed.
 
    38  *      figure if redirect is needed.
 
    39  * @param bool $do_redirect Optional. Redirect to the new URL.
 
    39  * @param bool $do_redirect Optional. Redirect to the new URL.
 
    40  * @return string|void The string of the URL, if redirect needed.
 
    40  * @return string|void The string of the URL, if redirect needed.
 
    41  */
 
    41  */
 
    42 function redirect_canonical( $requested_url = null, $do_redirect = true ) {
 
    42 function redirect_canonical( $requested_url = null, $do_redirect = true ) {
 
    43 	global $wp_rewrite, $is_IIS, $wp_query, $wpdb, $wp;
 
    43 	global $wp_rewrite, $is_IIS, $wp_query, $wpdb, $wp;
 
    54 			|| ! wp_verify_nonce( $_GET['preview_nonce'], 'post_preview_' . (int) $_GET['preview_id'] ) ) {
 
    54 			|| ! wp_verify_nonce( $_GET['preview_nonce'], 'post_preview_' . (int) $_GET['preview_id'] ) ) {
 
    55 			$wp_query->is_preview = false;
 
    55 			$wp_query->is_preview = false;
 
    56 		}
 
    56 		}
 
    57 	}
 
    57 	}
 
    58 
    58 
    59 	if ( is_trackback() || is_search() || is_admin() || is_preview() || is_robots() || ( $is_IIS && !iis7_supports_permalinks() ) ) {
 
    59 	if ( is_trackback() || is_search() || is_admin() || is_preview() || is_robots() || ( $is_IIS && ! iis7_supports_permalinks() ) ) {
 
    60 		return;
 
    60 		return;
 
    61 	}
 
    61 	}
 
    62 
    62 
    63 	if ( ! $requested_url && isset( $_SERVER['HTTP_HOST'] ) ) {
 
    63 	if ( ! $requested_url && isset( $_SERVER['HTTP_HOST'] ) ) {
 
    64 		// build the URL in the address bar
 
    64 		// build the URL in the address bar
 
    65 		$requested_url  = is_ssl() ? 'https://' : 'http://';
 
    65 		$requested_url  = is_ssl() ? 'https://' : 'http://';
 
    66 		$requested_url .= $_SERVER['HTTP_HOST'];
 
    66 		$requested_url .= $_SERVER['HTTP_HOST'];
 
    67 		$requested_url .= $_SERVER['REQUEST_URI'];
 
    67 		$requested_url .= $_SERVER['REQUEST_URI'];
 
    68 	}
 
    68 	}
 
    69 
    69 
    70 	$original = @parse_url($requested_url);
 
    70 	$original = @parse_url( $requested_url );
 
    71 	if ( false === $original ) {
 
    71 	if ( false === $original ) {
 
    72 		return;
 
    72 		return;
 
    73 	}
 
    73 	}
 
    74 
    74 
    75 	$redirect = $original;
 
    75 	$redirect     = $original;
 
    76 	$redirect_url = false;
 
    76 	$redirect_url = false;
 
    77 
    77 
    78 	// Notice fixing
 
    78 	// Notice fixing
 
    79 	if ( !isset($redirect['path']) )
 
    79 	if ( ! isset( $redirect['path'] ) ) {
 
    80 		$redirect['path'] = '';
 
    80 		$redirect['path'] = '';
 
    81 	if ( !isset($redirect['query']) )
 
    81 	}
 
       
    82 	if ( ! isset( $redirect['query'] ) ) {
 
    82 		$redirect['query'] = '';
 
    83 		$redirect['query'] = '';
 
       
    84 	}
 
    83 
    85 
    84 	// If the original URL ended with non-breaking spaces, they were almost
 
    86 	// If the original URL ended with non-breaking spaces, they were almost
 
    85 	// certainly inserted by accident. Let's remove them, so the reader doesn't
 
    87 	// certainly inserted by accident. Let's remove them, so the reader doesn't
 
    86 	// see a 404 error with no obvious cause.
 
    88 	// see a 404 error with no obvious cause.
 
    87 	$redirect['path'] = preg_replace( '|(%C2%A0)+$|i', '', $redirect['path'] );
 
    89 	$redirect['path'] = preg_replace( '|(%C2%A0)+$|i', '', $redirect['path'] );
 
    91 		$redirect['query'] = remove_query_arg( 'preview', $redirect['query'] );
 
    93 		$redirect['query'] = remove_query_arg( 'preview', $redirect['query'] );
 
    92 	}
 
    94 	}
 
    93 
    95 
    94 	if ( is_feed() && ( $id = get_query_var( 'p' ) ) ) {
 
    96 	if ( is_feed() && ( $id = get_query_var( 'p' ) ) ) {
 
    95 		if ( $redirect_url = get_post_comments_feed_link( $id, get_query_var( 'feed' ) ) ) {
 
    97 		if ( $redirect_url = get_post_comments_feed_link( $id, get_query_var( 'feed' ) ) ) {
 
    96 			$redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type', 'feed'), $redirect_url );
 
    98 			$redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type', 'feed' ), $redirect_url );
 
    97 			$redirect['path'] = parse_url( $redirect_url, PHP_URL_PATH );
 
    99 			$redirect['path']  = parse_url( $redirect_url, PHP_URL_PATH );
 
    98 		}
 
   100 		}
 
    99 	}
 
   101 	}
 
   100 
   102 
   101 	if ( is_singular() && 1 > $wp_query->post_count && ($id = get_query_var('p')) ) {
 
   103 	if ( is_singular() && 1 > $wp_query->post_count && ( $id = get_query_var( 'p' ) ) ) {
 
   102 
   104 
   103 		$vars = $wpdb->get_results( $wpdb->prepare("SELECT post_type, post_parent FROM $wpdb->posts WHERE ID = %d", $id) );
 
   105 		$vars = $wpdb->get_results( $wpdb->prepare( "SELECT post_type, post_parent FROM $wpdb->posts WHERE ID = %d", $id ) );
 
   104 
   106 
   105 		if ( isset($vars[0]) && $vars = $vars[0] ) {
 
   107 		if ( isset( $vars[0] ) && $vars = $vars[0] ) {
 
   106 			if ( 'revision' == $vars->post_type && $vars->post_parent > 0 )
 
   108 			if ( 'revision' == $vars->post_type && $vars->post_parent > 0 ) {
 
   107 				$id = $vars->post_parent;
 
   109 				$id = $vars->post_parent;
 
   108 
   110 			}
 
   109 			if ( $redirect_url = get_permalink($id) )
 
   111 
       
   112 			if ( $redirect_url = get_permalink( $id ) ) {
 
   110 				$redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type' ), $redirect_url );
 
   113 				$redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type' ), $redirect_url );
 
       
   114 			}
 
   111 		}
 
   115 		}
 
   112 	}
 
   116 	}
 
   113 
   117 
   114 	// These tests give us a WP-generated permalink
 
   118 	// These tests give us a WP-generated permalink
 
   115 	if ( is_404() ) {
 
   119 	if ( is_404() ) {
 
   116 
   120 
   117 		// Redirect ?page_id, ?p=, ?attachment_id= to their respective url's
 
   121 		// Redirect ?page_id, ?p=, ?attachment_id= to their respective url's
 
   118 		$id = max( get_query_var('p'), get_query_var('page_id'), get_query_var('attachment_id') );
 
   122 		$id = max( get_query_var( 'p' ), get_query_var( 'page_id' ), get_query_var( 'attachment_id' ) );
 
   119 		if ( $id && $redirect_post = get_post($id) ) {
 
   123 		if ( $id && $redirect_post = get_post( $id ) ) {
 
   120 			$post_type_obj = get_post_type_object($redirect_post->post_type);
 
   124 			$post_type_obj = get_post_type_object( $redirect_post->post_type );
 
   121 			if ( $post_type_obj->public && 'auto-draft' != $redirect_post->post_status ) {
 
   125 			if ( $post_type_obj->public && 'auto-draft' != $redirect_post->post_status ) {
 
   122 				$redirect_url = get_permalink($redirect_post);
 
   126 				$redirect_url      = get_permalink( $redirect_post );
 
   123 				$redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type' ), $redirect_url );
 
   127 				$redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'p', 'page_id', 'attachment_id', 'pagename', 'name', 'post_type' ), $redirect_url );
 
   124 			}
 
   128 			}
 
   125 		}
 
   129 		}
 
   126 
   130 
   127 		if ( get_query_var( 'day' ) && get_query_var( 'monthnum' ) && get_query_var( 'year' ) ) {
 
   131 		if ( get_query_var( 'day' ) && get_query_var( 'monthnum' ) && get_query_var( 'year' ) ) {
 
   128 			$year  = get_query_var( 'year' );
 
   132 			$year  = get_query_var( 'year' );
 
   129 			$month = get_query_var( 'monthnum' );
 
   133 			$month = get_query_var( 'monthnum' );
 
   130 			$day   = get_query_var( 'day' );
 
   134 			$day   = get_query_var( 'day' );
 
   131 			$date  = sprintf( '%04d-%02d-%02d', $year, $month, $day );
 
   135 			$date  = sprintf( '%04d-%02d-%02d', $year, $month, $day );
 
   132 			if ( ! wp_checkdate( $month, $day, $year, $date ) ) {
 
   136 			if ( ! wp_checkdate( $month, $day, $year, $date ) ) {
 
   133 				$redirect_url = get_month_link( $year, $month );
 
   137 				$redirect_url      = get_month_link( $year, $month );
 
   134 				$redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'year', 'monthnum', 'day' ), $redirect_url );
 
   138 				$redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'year', 'monthnum', 'day' ), $redirect_url );
 
   135 			}
 
   139 			}
 
   136 		} elseif ( get_query_var( 'monthnum' ) && get_query_var( 'year' ) && 12 < get_query_var( 'monthnum' ) ) {
 
   140 		} elseif ( get_query_var( 'monthnum' ) && get_query_var( 'year' ) && 12 < get_query_var( 'monthnum' ) ) {
 
   137 			$redirect_url = get_year_link( get_query_var( 'year' ) );
 
   141 			$redirect_url      = get_year_link( get_query_var( 'year' ) );
 
   138 			$redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'year', 'monthnum' ), $redirect_url );
 
   142 			$redirect['query'] = _remove_qs_args_if_not_in_url( $redirect['query'], array( 'year', 'monthnum' ), $redirect_url );
 
   139 		}
 
   143 		}
 
   140 
   144 
   141 		if ( ! $redirect_url ) {
 
   145 		if ( ! $redirect_url ) {
 
   142 			if ( $redirect_url = redirect_guess_404_permalink() ) {
 
   146 			if ( $redirect_url = redirect_guess_404_permalink() ) {
 
   144 			}
 
   148 			}
 
   145 		}
 
   149 		}
 
   146 
   150 
   147 		if ( get_query_var( 'page' ) && $wp_query->post &&
 
   151 		if ( get_query_var( 'page' ) && $wp_query->post &&
 
   148 			false !== strpos( $wp_query->post->post_content, '<!--nextpage-->' ) ) {
 
   152 			false !== strpos( $wp_query->post->post_content, '<!--nextpage-->' ) ) {
 
   149 			$redirect['path'] = rtrim( $redirect['path'], (int) get_query_var( 'page' ) . '/' );
 
   153 			$redirect['path']  = rtrim( $redirect['path'], (int) get_query_var( 'page' ) . '/' );
 
   150 			$redirect['query'] = remove_query_arg( 'page', $redirect['query'] );
 
   154 			$redirect['query'] = remove_query_arg( 'page', $redirect['query'] );
 
   151 			$redirect_url = get_permalink( $wp_query->post->ID );
 
   155 			$redirect_url      = get_permalink( $wp_query->post->ID );
 
   152 		}
 
   156 		}
 
   153 
   157 	} elseif ( is_object( $wp_rewrite ) && $wp_rewrite->using_permalinks() ) {
 
   154 	} elseif ( is_object($wp_rewrite) && $wp_rewrite->using_permalinks() ) {
 
       
   155 		// rewriting of old ?p=X, ?m=2004, ?m=200401, ?m=20040101
 
   158 		// rewriting of old ?p=X, ?m=2004, ?m=200401, ?m=20040101
 
   156 		if ( is_attachment() &&
 
   159 		if ( is_attachment() &&
 
   157 			! array_diff( array_keys( $wp->query_vars ), array( 'attachment', 'attachment_id' ) ) &&
 
   160 			! array_diff( array_keys( $wp->query_vars ), array( 'attachment', 'attachment_id' ) ) &&
 
   158 			! $redirect_url ) {
 
   161 			! $redirect_url ) {
 
   159 			if ( ! empty( $_GET['attachment_id'] ) ) {
 
   162 			if ( ! empty( $_GET['attachment_id'] ) ) {
 
   162 					$redirect['query'] = remove_query_arg( 'attachment_id', $redirect['query'] );
 
   165 					$redirect['query'] = remove_query_arg( 'attachment_id', $redirect['query'] );
 
   163 				}
 
   166 				}
 
   164 			} else {
 
   167 			} else {
 
   165 				$redirect_url = get_attachment_link();
 
   168 				$redirect_url = get_attachment_link();
 
   166 			}
 
   169 			}
 
   167 		} elseif ( is_single() && !empty($_GET['p']) && ! $redirect_url ) {
 
   170 		} elseif ( is_single() && ! empty( $_GET['p'] ) && ! $redirect_url ) {
 
   168 			if ( $redirect_url = get_permalink(get_query_var('p')) )
 
   171 			if ( $redirect_url = get_permalink( get_query_var( 'p' ) ) ) {
 
   169 				$redirect['query'] = remove_query_arg(array('p', 'post_type'), $redirect['query']);
 
   172 				$redirect['query'] = remove_query_arg( array( 'p', 'post_type' ), $redirect['query'] );
 
   170 		} elseif ( is_single() && !empty($_GET['name'])  && ! $redirect_url ) {
 
   173 			}
 
   171 			if ( $redirect_url = get_permalink( $wp_query->get_queried_object_id() ) )
 
   174 		} elseif ( is_single() && ! empty( $_GET['name'] ) && ! $redirect_url ) {
 
   172 				$redirect['query'] = remove_query_arg('name', $redirect['query']);
 
   175 			if ( $redirect_url = get_permalink( $wp_query->get_queried_object_id() ) ) {
 
   173 		} elseif ( is_page() && !empty($_GET['page_id']) && ! $redirect_url ) {
 
   176 				$redirect['query'] = remove_query_arg( 'name', $redirect['query'] );
 
   174 			if ( $redirect_url = get_permalink(get_query_var('page_id')) )
 
   177 			}
 
   175 				$redirect['query'] = remove_query_arg('page_id', $redirect['query']);
 
   178 		} elseif ( is_page() && ! empty( $_GET['page_id'] ) && ! $redirect_url ) {
 
   176 		} elseif ( is_page() && !is_feed() && 'page' == get_option('show_on_front') && get_queried_object_id() == get_option('page_on_front')  && ! $redirect_url ) {
 
   179 			if ( $redirect_url = get_permalink( get_query_var( 'page_id' ) ) ) {
 
   177 			$redirect_url = home_url('/');
 
   180 				$redirect['query'] = remove_query_arg( 'page_id', $redirect['query'] );
 
   178 		} elseif ( is_home() && !empty($_GET['page_id']) && 'page' == get_option('show_on_front') && get_query_var('page_id') == get_option('page_for_posts')  && ! $redirect_url ) {
 
   181 			}
 
   179 			if ( $redirect_url = get_permalink(get_option('page_for_posts')) )
 
   182 		} elseif ( is_page() && ! is_feed() && 'page' == get_option( 'show_on_front' ) && get_queried_object_id() == get_option( 'page_on_front' ) && ! $redirect_url ) {
 
   180 				$redirect['query'] = remove_query_arg('page_id', $redirect['query']);
 
   183 			$redirect_url = home_url( '/' );
 
   181 		} elseif ( !empty($_GET['m']) && ( is_year() || is_month() || is_day() ) ) {
 
   184 		} elseif ( is_home() && ! empty( $_GET['page_id'] ) && 'page' == get_option( 'show_on_front' ) && get_query_var( 'page_id' ) == get_option( 'page_for_posts' ) && ! $redirect_url ) {
 
   182 			$m = get_query_var('m');
 
   185 			if ( $redirect_url = get_permalink( get_option( 'page_for_posts' ) ) ) {
 
   183 			switch ( strlen($m) ) {
 
   186 				$redirect['query'] = remove_query_arg( 'page_id', $redirect['query'] );
 
       
   187 			}
 
       
   188 		} elseif ( ! empty( $_GET['m'] ) && ( is_year() || is_month() || is_day() ) ) {
 
       
   189 			$m = get_query_var( 'm' );
 
       
   190 			switch ( strlen( $m ) ) {
 
   184 				case 4: // Yearly
 
   191 				case 4: // Yearly
 
   185 					$redirect_url = get_year_link($m);
 
   192 					$redirect_url = get_year_link( $m );
 
   186 					break;
 
   193 					break;
 
   187 				case 6: // Monthly
 
   194 				case 6: // Monthly
 
   188 					$redirect_url = get_month_link( substr($m, 0, 4), substr($m, 4, 2) );
 
   195 					$redirect_url = get_month_link( substr( $m, 0, 4 ), substr( $m, 4, 2 ) );
 
   189 					break;
 
   196 					break;
 
   190 				case 8: // Daily
 
   197 				case 8: // Daily
 
   191 					$redirect_url = get_day_link(substr($m, 0, 4), substr($m, 4, 2), substr($m, 6, 2));
 
   198 					$redirect_url = get_day_link( substr( $m, 0, 4 ), substr( $m, 4, 2 ), substr( $m, 6, 2 ) );
 
   192 					break;
 
   199 					break;
 
   193 			}
 
   200 			}
 
   194 			if ( $redirect_url )
 
   201 			if ( $redirect_url ) {
 
   195 				$redirect['query'] = remove_query_arg('m', $redirect['query']);
 
   202 				$redirect['query'] = remove_query_arg( 'm', $redirect['query'] );
 
   196 		// now moving on to non ?m=X year/month/day links
 
   203 			}
 
   197 		} elseif ( is_day() && get_query_var('year') && get_query_var('monthnum') && !empty($_GET['day']) ) {
 
   204 			// now moving on to non ?m=X year/month/day links
 
   198 			if ( $redirect_url = get_day_link(get_query_var('year'), get_query_var('monthnum'), get_query_var('day')) )
 
   205 		} elseif ( is_day() && get_query_var( 'year' ) && get_query_var( 'monthnum' ) && ! empty( $_GET['day'] ) ) {
 
   199 				$redirect['query'] = remove_query_arg(array('year', 'monthnum', 'day'), $redirect['query']);
 
   206 			if ( $redirect_url = get_day_link( get_query_var( 'year' ), get_query_var( 'monthnum' ), get_query_var( 'day' ) ) ) {
 
   200 		} elseif ( is_month() && get_query_var('year') && !empty($_GET['monthnum']) ) {
 
   207 				$redirect['query'] = remove_query_arg( array( 'year', 'monthnum', 'day' ), $redirect['query'] );
 
   201 			if ( $redirect_url = get_month_link(get_query_var('year'), get_query_var('monthnum')) )
 
   208 			}
 
   202 				$redirect['query'] = remove_query_arg(array('year', 'monthnum'), $redirect['query']);
 
   209 		} elseif ( is_month() && get_query_var( 'year' ) && ! empty( $_GET['monthnum'] ) ) {
 
   203 		} elseif ( is_year() && !empty($_GET['year']) ) {
 
   210 			if ( $redirect_url = get_month_link( get_query_var( 'year' ), get_query_var( 'monthnum' ) ) ) {
 
   204 			if ( $redirect_url = get_year_link(get_query_var('year')) )
 
   211 				$redirect['query'] = remove_query_arg( array( 'year', 'monthnum' ), $redirect['query'] );
 
   205 				$redirect['query'] = remove_query_arg('year', $redirect['query']);
 
   212 			}
 
   206 		} elseif ( is_author() && !empty($_GET['author']) && preg_match( '|^[0-9]+$|', $_GET['author'] ) ) {
 
   213 		} elseif ( is_year() && ! empty( $_GET['year'] ) ) {
 
   207 			$author = get_userdata(get_query_var('author'));
 
   214 			if ( $redirect_url = get_year_link( get_query_var( 'year' ) ) ) {
 
       
   215 				$redirect['query'] = remove_query_arg( 'year', $redirect['query'] );
 
       
   216 			}
 
       
   217 		} elseif ( is_author() && ! empty( $_GET['author'] ) && preg_match( '|^[0-9]+$|', $_GET['author'] ) ) {
 
       
   218 			$author = get_userdata( get_query_var( 'author' ) );
 
   208 			if ( ( false !== $author ) && $wpdb->get_var( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE $wpdb->posts.post_author = %d AND $wpdb->posts.post_status = 'publish' LIMIT 1", $author->ID ) ) ) {
 
   219 			if ( ( false !== $author ) && $wpdb->get_var( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE $wpdb->posts.post_author = %d AND $wpdb->posts.post_status = 'publish' LIMIT 1", $author->ID ) ) ) {
 
   209 				if ( $redirect_url = get_author_posts_url($author->ID, $author->user_nicename) )
 
   220 				if ( $redirect_url = get_author_posts_url( $author->ID, $author->user_nicename ) ) {
 
   210 					$redirect['query'] = remove_query_arg('author', $redirect['query']);
 
   221 					$redirect['query'] = remove_query_arg( 'author', $redirect['query'] );
 
       
   222 				}
 
   211 			}
 
   223 			}
 
   212 		} elseif ( is_category() || is_tag() || is_tax() ) { // Terms (Tags/categories)
 
   224 		} elseif ( is_category() || is_tag() || is_tax() ) { // Terms (Tags/categories)
 
   213 
   225 
   214 			$term_count = 0;
 
   226 			$term_count = 0;
 
   215 			foreach ( $wp_query->tax_query->queried_terms as $tax_query )
 
   227 			foreach ( $wp_query->tax_query->queried_terms as $tax_query ) {
 
   216 				$term_count += count( $tax_query['terms'] );
 
   228 				$term_count += count( $tax_query['terms'] );
 
       
   229 			}
 
   217 
   230 
   218 			$obj = $wp_query->get_queried_object();
 
   231 			$obj = $wp_query->get_queried_object();
 
   219 			if ( $term_count <= 1 && !empty($obj->term_id) && ( $tax_url = get_term_link((int)$obj->term_id, $obj->taxonomy) ) && !is_wp_error($tax_url) ) {
 
   232 			if ( $term_count <= 1 && ! empty( $obj->term_id ) && ( $tax_url = get_term_link( (int) $obj->term_id, $obj->taxonomy ) ) && ! is_wp_error( $tax_url ) ) {
 
   220 				if ( !empty($redirect['query']) ) {
 
   233 				if ( ! empty( $redirect['query'] ) ) {
 
   221 					// Strip taxonomy query vars off the url.
 
   234 					// Strip taxonomy query vars off the url.
 
   222 					$qv_remove = array( 'term', 'taxonomy');
 
   235 					$qv_remove = array( 'term', 'taxonomy' );
 
   223 					if ( is_category() ) {
 
   236 					if ( is_category() ) {
 
   224 						$qv_remove[] = 'category_name';
 
   237 						$qv_remove[] = 'category_name';
 
   225 						$qv_remove[] = 'cat';
 
   238 						$qv_remove[] = 'cat';
 
   226 					} elseif ( is_tag() ) {
 
   239 					} elseif ( is_tag() ) {
 
   227 						$qv_remove[] = 'tag';
 
   240 						$qv_remove[] = 'tag';
 
   228 						$qv_remove[] = 'tag_id';
 
   241 						$qv_remove[] = 'tag_id';
 
   229 					} else { // Custom taxonomies will have a custom query var, remove those too:
 
   242 					} else { // Custom taxonomies will have a custom query var, remove those too:
 
   230 						$tax_obj = get_taxonomy( $obj->taxonomy );
 
   243 						$tax_obj = get_taxonomy( $obj->taxonomy );
 
   231 						if ( false !== $tax_obj->query_var )
 
   244 						if ( false !== $tax_obj->query_var ) {
 
   232 							$qv_remove[] = $tax_obj->query_var;
 
   245 							$qv_remove[] = $tax_obj->query_var;
 
       
   246 						}
 
   233 					}
 
   247 					}
 
   234 
   248 
   235 					$rewrite_vars = array_diff( array_keys($wp_query->query), array_keys($_GET) );
 
   249 					$rewrite_vars = array_diff( array_keys( $wp_query->query ), array_keys( $_GET ) );
 
   236 
   250 
   237 					if ( !array_diff($rewrite_vars, array_keys($_GET))  ) { // Check to see if all the Query vars are coming from the rewrite, none are set via $_GET
 
   251 					if ( ! array_diff( $rewrite_vars, array_keys( $_GET ) ) ) { // Check to see if all the Query vars are coming from the rewrite, none are set via $_GET
 
   238 						$redirect['query'] = remove_query_arg($qv_remove, $redirect['query']); //Remove all of the per-tax qv's
 
   252 						$redirect['query'] = remove_query_arg( $qv_remove, $redirect['query'] ); //Remove all of the per-tax qv's
 
   239 
   253 
   240 						// Create the destination url for this taxonomy
 
   254 						// Create the destination url for this taxonomy
 
   241 						$tax_url = parse_url($tax_url);
 
   255 						$tax_url = parse_url( $tax_url );
 
   242 						if ( ! empty($tax_url['query']) ) { // Taxonomy accessible via ?taxonomy=..&term=.. or any custom qv..
 
   256 						if ( ! empty( $tax_url['query'] ) ) { // Taxonomy accessible via ?taxonomy=..&term=.. or any custom qv..
 
   243 							parse_str($tax_url['query'], $query_vars);
 
   257 							parse_str( $tax_url['query'], $query_vars );
 
   244 							$redirect['query'] = add_query_arg($query_vars, $redirect['query']);
 
   258 							$redirect['query'] = add_query_arg( $query_vars, $redirect['query'] );
 
   245 						} else { // Taxonomy is accessible via a "pretty-URL"
 
   259 						} else { // Taxonomy is accessible via a "pretty-URL"
 
   246 							$redirect['path'] = $tax_url['path'];
 
   260 							$redirect['path'] = $tax_url['path'];
 
   247 						}
 
   261 						}
 
   248 
       
   249 					} else { // Some query vars are set via $_GET. Unset those from $_GET that exist via the rewrite
 
   262 					} else { // Some query vars are set via $_GET. Unset those from $_GET that exist via the rewrite
 
   250 						foreach ( $qv_remove as $_qv ) {
 
   263 						foreach ( $qv_remove as $_qv ) {
 
   251 							if ( isset($rewrite_vars[$_qv]) )
 
   264 							if ( isset( $rewrite_vars[ $_qv ] ) ) {
 
   252 								$redirect['query'] = remove_query_arg($_qv, $redirect['query']);
 
   265 								$redirect['query'] = remove_query_arg( $_qv, $redirect['query'] );
 
       
   266 							}
 
   253 						}
 
   267 						}
 
   254 					}
 
   268 					}
 
   255 				}
 
   269 				}
 
   256 
   270 			}
 
   257 			}
 
   271 		} elseif ( is_single() && strpos( $wp_rewrite->permalink_structure, '%category%' ) !== false && $cat = get_query_var( 'category_name' ) ) {
 
   258 		} elseif ( is_single() && strpos($wp_rewrite->permalink_structure, '%category%') !== false && $cat = get_query_var( 'category_name' ) ) {
 
       
   259 			$category = get_category_by_path( $cat );
 
   272 			$category = get_category_by_path( $cat );
 
   260 			if ( ( ! $category || is_wp_error( $category ) ) || ! has_term( $category->term_id, 'category', $wp_query->get_queried_object_id() ) ) {
 
   273 			if ( ( ! $category || is_wp_error( $category ) ) || ! has_term( $category->term_id, 'category', $wp_query->get_queried_object_id() ) ) {
 
   261 				$redirect_url = get_permalink($wp_query->get_queried_object_id());
 
   274 				$redirect_url = get_permalink( $wp_query->get_queried_object_id() );
 
   262 			}
 
   275 			}
 
   263 		}
 
   276 		}
 
   264 
   277 
   265 		// Post Paging
 
   278 			// Post Paging
 
   266 		if ( is_singular() && get_query_var('page') ) {
 
   279 		if ( is_singular() && get_query_var( 'page' ) ) {
 
   267 			if ( !$redirect_url )
 
   280 			if ( ! $redirect_url ) {
 
   268 				$redirect_url = get_permalink( get_queried_object_id() );
 
   281 				$redirect_url = get_permalink( get_queried_object_id() );
 
       
   282 			}
 
   269 
   283 
   270 			$page = get_query_var( 'page' );
 
   284 			$page = get_query_var( 'page' );
 
   271 			if ( $page > 1 ) {
 
   285 			if ( $page > 1 ) {
 
   272 				if ( is_front_page() ) {
 
   286 				if ( is_front_page() ) {
 
   273 					$redirect_url = trailingslashit( $redirect_url ) . user_trailingslashit( "$wp_rewrite->pagination_base/$page", 'paged' );
 
   287 					$redirect_url = trailingslashit( $redirect_url ) . user_trailingslashit( "$wp_rewrite->pagination_base/$page", 'paged' );
 
   274 				} else {
 
   288 				} else {
 
   275 					$redirect_url = trailingslashit( $redirect_url ) . user_trailingslashit( $page, 'single_paged' );
 
   289 					$redirect_url = trailingslashit( $redirect_url ) . user_trailingslashit( $page, 'single_paged' );
 
   276 				}
 
   290 				}
 
   277 			}
 
   291 			}
 
   278 			$redirect['query'] = remove_query_arg( 'page', $redirect['query'] );
 
   292 				$redirect['query'] = remove_query_arg( 'page', $redirect['query'] );
 
   279 		}
 
   293 		}
 
   280 
   294 
   281 		// paging and feeds
 
   295 			// paging and feeds
 
   282 		if ( get_query_var('paged') || is_feed() || get_query_var('cpage') ) {
 
   296 		if ( get_query_var( 'paged' ) || is_feed() || get_query_var( 'cpage' ) ) {
 
   283 			while ( preg_match( "#/$wp_rewrite->pagination_base/?[0-9]+?(/+)?$#", $redirect['path'] ) || preg_match( '#/(comments/?)?(feed|rss|rdf|atom|rss2)(/+)?$#', $redirect['path'] ) || preg_match( "#/{$wp_rewrite->comments_pagination_base}-[0-9]+(/+)?$#", $redirect['path'] ) ) {
 
   297 			while ( preg_match( "#/$wp_rewrite->pagination_base/?[0-9]+?(/+)?$#", $redirect['path'] ) || preg_match( '#/(comments/?)?(feed|rss|rdf|atom|rss2)(/+)?$#', $redirect['path'] ) || preg_match( "#/{$wp_rewrite->comments_pagination_base}-[0-9]+(/+)?$#", $redirect['path'] ) ) {
 
   284 				// Strip off paging and feed
 
   298 				// Strip off paging and feed
 
   285 				$redirect['path'] = preg_replace("#/$wp_rewrite->pagination_base/?[0-9]+?(/+)?$#", '/', $redirect['path']); // strip off any existing paging
 
   299 				$redirect['path'] = preg_replace( "#/$wp_rewrite->pagination_base/?[0-9]+?(/+)?$#", '/', $redirect['path'] ); // strip off any existing paging
 
   286 				$redirect['path'] = preg_replace('#/(comments/?)?(feed|rss2?|rdf|atom)(/+|$)#', '/', $redirect['path']); // strip off feed endings
 
   300 				$redirect['path'] = preg_replace( '#/(comments/?)?(feed|rss2?|rdf|atom)(/+|$)#', '/', $redirect['path'] ); // strip off feed endings
 
   287 				$redirect['path'] = preg_replace("#/{$wp_rewrite->comments_pagination_base}-[0-9]+?(/+)?$#", '/', $redirect['path']); // strip off any existing comment paging
 
   301 				$redirect['path'] = preg_replace( "#/{$wp_rewrite->comments_pagination_base}-[0-9]+?(/+)?$#", '/', $redirect['path'] ); // strip off any existing comment paging
 
   288 			}
 
   302 			}
 
   289 
   303 
   290 			$addl_path = '';
 
   304 			$addl_path = '';
 
   291 			if ( is_feed() && in_array( get_query_var('feed'), $wp_rewrite->feeds ) ) {
 
   305 			if ( is_feed() && in_array( get_query_var( 'feed' ), $wp_rewrite->feeds ) ) {
 
   292 				$addl_path = !empty( $addl_path ) ? trailingslashit($addl_path) : '';
 
   306 				$addl_path = ! empty( $addl_path ) ? trailingslashit( $addl_path ) : '';
 
   293 				if ( !is_singular() && get_query_var( 'withcomments' ) )
 
   307 				if ( ! is_singular() && get_query_var( 'withcomments' ) ) {
 
   294 					$addl_path .= 'comments/';
 
   308 					$addl_path .= 'comments/';
 
   295 				if ( ( 'rss' == get_default_feed() && 'feed' == get_query_var('feed') ) || 'rss' == get_query_var('feed') )
 
   309 				}
 
       
   310 				if ( ( 'rss' == get_default_feed() && 'feed' == get_query_var( 'feed' ) ) || 'rss' == get_query_var( 'feed' ) ) {
 
   296 					$addl_path .= user_trailingslashit( 'feed/' . ( ( get_default_feed() == 'rss2' ) ? '' : 'rss2' ), 'feed' );
 
   311 					$addl_path .= user_trailingslashit( 'feed/' . ( ( get_default_feed() == 'rss2' ) ? '' : 'rss2' ), 'feed' );
 
   297 				else
 
   312 				} else {
 
   298 					$addl_path .= user_trailingslashit( 'feed/' . ( ( get_default_feed() ==  get_query_var('feed') || 'feed' == get_query_var('feed') ) ? '' : get_query_var('feed') ), 'feed' );
 
   313 					$addl_path .= user_trailingslashit( 'feed/' . ( ( get_default_feed() == get_query_var( 'feed' ) || 'feed' == get_query_var( 'feed' ) ) ? '' : get_query_var( 'feed' ) ), 'feed' );
 
       
   314 				}
 
   299 				$redirect['query'] = remove_query_arg( 'feed', $redirect['query'] );
 
   315 				$redirect['query'] = remove_query_arg( 'feed', $redirect['query'] );
 
   300 			} elseif ( is_feed() && 'old' == get_query_var('feed') ) {
 
   316 			} elseif ( is_feed() && 'old' == get_query_var( 'feed' ) ) {
 
   301 				$old_feed_files = array(
 
   317 				$old_feed_files = array(
 
   302 					'wp-atom.php'         => 'atom',
 
   318 					'wp-atom.php'         => 'atom',
 
   303 					'wp-commentsrss2.php' => 'comments_rss2',
 
   319 					'wp-commentsrss2.php' => 'comments_rss2',
 
   304 					'wp-feed.php'         => get_default_feed(),
 
   320 					'wp-feed.php'         => get_default_feed(),
 
   305 					'wp-rdf.php'          => 'rdf',
 
   321 					'wp-rdf.php'          => 'rdf',
 
   311 					wp_redirect( $redirect_url, 301 );
 
   327 					wp_redirect( $redirect_url, 301 );
 
   312 					die();
 
   328 					die();
 
   313 				}
 
   329 				}
 
   314 			}
 
   330 			}
 
   315 
   331 
   316 			if ( get_query_var('paged') > 0 ) {
 
   332 			if ( get_query_var( 'paged' ) > 0 ) {
 
   317 				$paged = get_query_var('paged');
 
   333 				$paged             = get_query_var( 'paged' );
 
   318 				$redirect['query'] = remove_query_arg( 'paged', $redirect['query'] );
 
   334 				$redirect['query'] = remove_query_arg( 'paged', $redirect['query'] );
 
   319 				if ( !is_feed() ) {
 
   335 				if ( ! is_feed() ) {
 
   320 					if ( $paged > 1 && !is_single() ) {
 
   336 					if ( $paged > 1 && ! is_single() ) {
 
   321 						$addl_path = ( !empty( $addl_path ) ? trailingslashit($addl_path) : '' ) . user_trailingslashit("$wp_rewrite->pagination_base/$paged", 'paged');
 
   337 						$addl_path = ( ! empty( $addl_path ) ? trailingslashit( $addl_path ) : '' ) . user_trailingslashit( "$wp_rewrite->pagination_base/$paged", 'paged' );
 
   322 					} elseif ( !is_single() ) {
 
   338 					} elseif ( ! is_single() ) {
 
   323 						$addl_path = !empty( $addl_path ) ? trailingslashit($addl_path) : '';
 
   339 						$addl_path = ! empty( $addl_path ) ? trailingslashit( $addl_path ) : '';
 
   324 					}
 
   340 					}
 
   325 				} elseif ( $paged > 1 ) {
 
   341 				} elseif ( $paged > 1 ) {
 
   326 					$redirect['query'] = add_query_arg( 'paged', $paged, $redirect['query'] );
 
   342 					$redirect['query'] = add_query_arg( 'paged', $paged, $redirect['query'] );
 
   327 				}
 
   343 				}
 
   328 			}
 
   344 			}
 
   329 
   345 
   330 			if ( get_option( 'page_comments' ) && (
 
   346 			if ( get_option( 'page_comments' ) && (
 
   331 				( 'newest' == get_option( 'default_comments_page' ) && get_query_var( 'cpage' ) > 0 ) ||
 
   347 			( 'newest' == get_option( 'default_comments_page' ) && get_query_var( 'cpage' ) > 0 ) ||
 
   332 				( 'newest' != get_option( 'default_comments_page' ) && get_query_var( 'cpage' ) > 1 )
 
   348 			( 'newest' != get_option( 'default_comments_page' ) && get_query_var( 'cpage' ) > 1 )
 
   333 			) ) {
 
   349 			) ) {
 
   334 				$addl_path = ( !empty( $addl_path ) ? trailingslashit($addl_path) : '' ) . user_trailingslashit( $wp_rewrite->comments_pagination_base . '-' . get_query_var('cpage'), 'commentpaged' );
 
   350 				$addl_path         = ( ! empty( $addl_path ) ? trailingslashit( $addl_path ) : '' ) . user_trailingslashit( $wp_rewrite->comments_pagination_base . '-' . get_query_var( 'cpage' ), 'commentpaged' );
 
   335 				$redirect['query'] = remove_query_arg( 'cpage', $redirect['query'] );
 
   351 				$redirect['query'] = remove_query_arg( 'cpage', $redirect['query'] );
 
   336 			}
 
   352 			}
 
   337 
   353 
   338 			$redirect['path'] = user_trailingslashit( preg_replace('|/' . preg_quote( $wp_rewrite->index, '|' ) . '/?$|', '/', $redirect['path']) ); // strip off trailing /index.php/
 
   354 			$redirect['path'] = user_trailingslashit( preg_replace( '|/' . preg_quote( $wp_rewrite->index, '|' ) . '/?$|', '/', $redirect['path'] ) ); // strip off trailing /index.php/
 
   339 			if ( !empty( $addl_path ) && $wp_rewrite->using_index_permalinks() && strpos($redirect['path'], '/' . $wp_rewrite->index . '/') === false )
 
   355 			if ( ! empty( $addl_path ) && $wp_rewrite->using_index_permalinks() && strpos( $redirect['path'], '/' . $wp_rewrite->index . '/' ) === false ) {
 
   340 				$redirect['path'] = trailingslashit($redirect['path']) . $wp_rewrite->index . '/';
 
   356 				$redirect['path'] = trailingslashit( $redirect['path'] ) . $wp_rewrite->index . '/';
 
   341 			if ( !empty( $addl_path ) )
 
   357 			}
 
   342 				$redirect['path'] = trailingslashit($redirect['path']) . $addl_path;
 
   358 			if ( ! empty( $addl_path ) ) {
 
       
   359 				$redirect['path'] = trailingslashit( $redirect['path'] ) . $addl_path;
 
       
   360 			}
 
   343 			$redirect_url = $redirect['scheme'] . '://' . $redirect['host'] . $redirect['path'];
 
   361 			$redirect_url = $redirect['scheme'] . '://' . $redirect['host'] . $redirect['path'];
 
   344 		}
 
   362 		}
 
   345 
   363 
   346 		if ( 'wp-register.php' == basename( $redirect['path'] ) ) {
 
   364 		if ( 'wp-register.php' == basename( $redirect['path'] ) ) {
 
   347 			if ( is_multisite() ) {
 
   365 			if ( is_multisite() ) {
 
   356 		}
 
   374 		}
 
   357 	}
 
   375 	}
 
   358 
   376 
   359 	// tack on any additional query vars
 
   377 	// tack on any additional query vars
 
   360 	$redirect['query'] = preg_replace( '#^\??&*?#', '', $redirect['query'] );
 
   378 	$redirect['query'] = preg_replace( '#^\??&*?#', '', $redirect['query'] );
 
   361 	if ( $redirect_url && !empty($redirect['query']) ) {
 
   379 	if ( $redirect_url && ! empty( $redirect['query'] ) ) {
 
   362 		parse_str( $redirect['query'], $_parsed_query );
 
   380 		parse_str( $redirect['query'], $_parsed_query );
 
   363 		$redirect = @parse_url($redirect_url);
 
   381 		$redirect = @parse_url( $redirect_url );
 
   364 
   382 
   365 		if ( ! empty( $_parsed_query['name'] ) && ! empty( $redirect['query'] ) ) {
 
   383 		if ( ! empty( $_parsed_query['name'] ) && ! empty( $redirect['query'] ) ) {
 
   366 			parse_str( $redirect['query'], $_parsed_redirect_query );
 
   384 			parse_str( $redirect['query'], $_parsed_redirect_query );
 
   367 
   385 
   368 			if ( empty( $_parsed_redirect_query['name'] ) )
 
   386 			if ( empty( $_parsed_redirect_query['name'] ) ) {
 
   369 				unset( $_parsed_query['name'] );
 
   387 				unset( $_parsed_query['name'] );
 
   370 		}
 
   388 			}
 
   371 
   389 		}
 
   372 		$_parsed_query = rawurlencode_deep( $_parsed_query );
 
   390 
   373 		$redirect_url = add_query_arg( $_parsed_query, $redirect_url );
 
   391 		$_parsed_query = array_combine(
 
   374 	}
 
   392 			rawurlencode_deep( array_keys( $_parsed_query ) ),
 
   375 
   393 			rawurlencode_deep( array_values( $_parsed_query ) )
 
   376 	if ( $redirect_url )
 
   394 		);
 
   377 		$redirect = @parse_url($redirect_url);
 
   395 		$redirect_url  = add_query_arg( $_parsed_query, $redirect_url );
 
       
   396 	}
 
       
   397 
       
   398 	if ( $redirect_url ) {
 
       
   399 		$redirect = @parse_url( $redirect_url );
 
       
   400 	}
 
   378 
   401 
   379 	// www.example.com vs example.com
 
   402 	// www.example.com vs example.com
 
   380 	$user_home = @parse_url(home_url());
 
   403 	$user_home = @parse_url( home_url() );
 
   381 	if ( !empty($user_home['host']) )
 
   404 	if ( ! empty( $user_home['host'] ) ) {
 
   382 		$redirect['host'] = $user_home['host'];
 
   405 		$redirect['host'] = $user_home['host'];
 
   383 	if ( empty($user_home['path']) )
 
   406 	}
 
       
   407 	if ( empty( $user_home['path'] ) ) {
 
   384 		$user_home['path'] = '/';
 
   408 		$user_home['path'] = '/';
 
       
   409 	}
 
   385 
   410 
   386 	// Handle ports
 
   411 	// Handle ports
 
   387 	if ( !empty($user_home['port']) )
 
   412 	if ( ! empty( $user_home['port'] ) ) {
 
   388 		$redirect['port'] = $user_home['port'];
 
   413 		$redirect['port'] = $user_home['port'];
 
   389 	else
 
   414 	} else {
 
   390 		unset($redirect['port']);
 
   415 		unset( $redirect['port'] );
 
       
   416 	}
 
   391 
   417 
   392 	// trailing /index.php
 
   418 	// trailing /index.php
 
   393 	$redirect['path'] = preg_replace('|/' . preg_quote( $wp_rewrite->index, '|' ) . '/*?$|', '/', $redirect['path']);
 
   419 	$redirect['path'] = preg_replace( '|/' . preg_quote( $wp_rewrite->index, '|' ) . '/*?$|', '/', $redirect['path'] );
 
   394 
   420 
   395 	$punctuation_pattern = implode( '|', array_map( 'preg_quote', array(
 
   421 	$punctuation_pattern = implode(
 
   396 		' ', '%20',  // space
 
   422 		'|',
 
   397 		'!', '%21',  // exclamation mark
 
   423 		array_map(
 
   398 		'"', '%22',  // double quote
 
   424 			'preg_quote',
 
   399 		"'", '%27',  // single quote
 
   425 			array(
 
   400 		'(', '%28',  // opening bracket
 
   426 				' ',
 
   401 		')', '%29',  // closing bracket
 
   427 				'%20',  // space
 
   402 		',', '%2C',  // comma
 
   428 				'!',
 
   403 		'.', '%2E',  // period
 
   429 				'%21',  // exclamation mark
 
   404 		';', '%3B',  // semicolon
 
   430 				'"',
 
   405 		'{', '%7B',  // opening curly bracket
 
   431 				'%22',  // double quote
 
   406 		'}', '%7D',  // closing curly bracket
 
   432 				"'",
 
   407 		'%E2%80%9C', // opening curly quote
 
   433 				'%27',  // single quote
 
   408 		'%E2%80%9D', // closing curly quote
 
   434 				'(',
 
   409 	) ) );
 
   435 				'%28',  // opening bracket
 
       
   436 				')',
 
       
   437 				'%29',  // closing bracket
 
       
   438 				',',
 
       
   439 				'%2C',  // comma
 
       
   440 				'.',
 
       
   441 				'%2E',  // period
 
       
   442 				';',
 
       
   443 				'%3B',  // semicolon
 
       
   444 				'{',
 
       
   445 				'%7B',  // opening curly bracket
 
       
   446 				'}',
 
       
   447 				'%7D',  // closing curly bracket
 
       
   448 				'%E2%80%9C', // opening curly quote
 
       
   449 				'%E2%80%9D', // closing curly quote
 
       
   450 			)
 
       
   451 		)
 
       
   452 	);
 
   410 
   453 
   411 	// Remove trailing spaces and end punctuation from the path.
 
   454 	// Remove trailing spaces and end punctuation from the path.
 
   412 	$redirect['path'] = preg_replace( "#($punctuation_pattern)+$#", '', $redirect['path'] );
 
   455 	$redirect['path'] = preg_replace( "#($punctuation_pattern)+$#", '', $redirect['path'] );
 
   413 
   456 
   414 	if ( !empty( $redirect['query'] ) ) {
 
   457 	if ( ! empty( $redirect['query'] ) ) {
 
   415 		// Remove trailing spaces and end punctuation from certain terminating query string args.
 
   458 		// Remove trailing spaces and end punctuation from certain terminating query string args.
 
   416 		$redirect['query'] = preg_replace( "#((p|page_id|cat|tag)=[^&]*?)($punctuation_pattern)+$#", '$1', $redirect['query'] );
 
   459 		$redirect['query'] = preg_replace( "#((p|page_id|cat|tag)=[^&]*?)($punctuation_pattern)+$#", '$1', $redirect['query'] );
 
   417 
   460 
   418 		// Clean up empty query strings
 
   461 		// Clean up empty query strings
 
   419 		$redirect['query'] = trim(preg_replace( '#(^|&)(p|page_id|cat|tag)=?(&|$)#', '&', $redirect['query']), '&');
 
   462 		$redirect['query'] = trim( preg_replace( '#(^|&)(p|page_id|cat|tag)=?(&|$)#', '&', $redirect['query'] ), '&' );
 
   420 
   463 
   421 		// Redirect obsolete feeds
 
   464 		// Redirect obsolete feeds
 
   422 		$redirect['query'] = preg_replace( '#(^|&)feed=rss(&|$)#', '$1feed=rss2$2', $redirect['query'] );
 
   465 		$redirect['query'] = preg_replace( '#(^|&)feed=rss(&|$)#', '$1feed=rss2$2', $redirect['query'] );
 
   423 
   466 
   424 		// Remove redundant leading ampersands
 
   467 		// Remove redundant leading ampersands
 
   425 		$redirect['query'] = preg_replace( '#^\??&*?#', '', $redirect['query'] );
 
   468 		$redirect['query'] = preg_replace( '#^\??&*?#', '', $redirect['query'] );
 
   426 	}
 
   469 	}
 
   427 
   470 
   428 	// strip /index.php/ when we're not using PATHINFO permalinks
 
   471 	// strip /index.php/ when we're not using PATHINFO permalinks
 
   429 	if ( !$wp_rewrite->using_index_permalinks() )
 
   472 	if ( ! $wp_rewrite->using_index_permalinks() ) {
 
   430 		$redirect['path'] = str_replace( '/' . $wp_rewrite->index . '/', '/', $redirect['path'] );
 
   473 		$redirect['path'] = str_replace( '/' . $wp_rewrite->index . '/', '/', $redirect['path'] );
 
       
   474 	}
 
   431 
   475 
   432 	// trailing slashes
 
   476 	// trailing slashes
 
   433 	if ( is_object($wp_rewrite) && $wp_rewrite->using_permalinks() && !is_404() && (!is_front_page() || ( is_front_page() && (get_query_var('paged') > 1) ) ) ) {
 
   477 	if ( is_object( $wp_rewrite ) && $wp_rewrite->using_permalinks() && ! is_404() && ( ! is_front_page() || ( is_front_page() && ( get_query_var( 'paged' ) > 1 ) ) ) ) {
 
   434 		$user_ts_type = '';
 
   478 		$user_ts_type = '';
 
   435 		if ( get_query_var('paged') > 0 ) {
 
   479 		if ( get_query_var( 'paged' ) > 0 ) {
 
   436 			$user_ts_type = 'paged';
 
   480 			$user_ts_type = 'paged';
 
   437 		} else {
 
   481 		} else {
 
   438 			foreach ( array('single', 'category', 'page', 'day', 'month', 'year', 'home') as $type ) {
 
   482 			foreach ( array( 'single', 'category', 'page', 'day', 'month', 'year', 'home' ) as $type ) {
 
   439 				$func = 'is_' . $type;
 
   483 				$func = 'is_' . $type;
 
   440 				if ( call_user_func($func) ) {
 
   484 				if ( call_user_func( $func ) ) {
 
   441 					$user_ts_type = $type;
 
   485 					$user_ts_type = $type;
 
   442 					break;
 
   486 					break;
 
   443 				}
 
   487 				}
 
   444 			}
 
   488 			}
 
   445 		}
 
   489 		}
 
   446 		$redirect['path'] = user_trailingslashit($redirect['path'], $user_ts_type);
 
   490 		$redirect['path'] = user_trailingslashit( $redirect['path'], $user_ts_type );
 
   447 	} elseif ( is_front_page() ) {
 
   491 	} elseif ( is_front_page() ) {
 
   448 		$redirect['path'] = trailingslashit($redirect['path']);
 
   492 		$redirect['path'] = trailingslashit( $redirect['path'] );
 
   449 	}
 
   493 	}
 
   450 
   494 
   451 	// Strip multiple slashes out of the URL
 
   495 	// Strip multiple slashes out of the URL
 
   452 	if ( strpos($redirect['path'], '//') > -1 )
 
   496 	if ( strpos( $redirect['path'], '//' ) > -1 ) {
 
   453 		$redirect['path'] = preg_replace('|/+|', '/', $redirect['path']);
 
   497 		$redirect['path'] = preg_replace( '|/+|', '/', $redirect['path'] );
 
       
   498 	}
 
   454 
   499 
   455 	// Always trailing slash the Front Page URL
 
   500 	// Always trailing slash the Front Page URL
 
   456 	if ( trailingslashit( $redirect['path'] ) == trailingslashit( $user_home['path'] ) )
 
   501 	if ( trailingslashit( $redirect['path'] ) == trailingslashit( $user_home['path'] ) ) {
 
   457 		$redirect['path'] = trailingslashit($redirect['path']);
 
   502 		$redirect['path'] = trailingslashit( $redirect['path'] );
 
       
   503 	}
 
   458 
   504 
   459 	// Ignore differences in host capitalization, as this can lead to infinite redirects
 
   505 	// Ignore differences in host capitalization, as this can lead to infinite redirects
 
   460 	// Only redirect no-www <=> yes-www
 
   506 	// Only redirect no-www <=> yes-www
 
   461 	if ( strtolower($original['host']) == strtolower($redirect['host']) ||
 
   507 	if ( strtolower( $original['host'] ) == strtolower( $redirect['host'] ) ||
 
   462 		( strtolower($original['host']) != 'www.' . strtolower($redirect['host']) && 'www.' . strtolower($original['host']) != strtolower($redirect['host']) ) )
 
   508 		( strtolower( $original['host'] ) != 'www.' . strtolower( $redirect['host'] ) && 'www.' . strtolower( $original['host'] ) != strtolower( $redirect['host'] ) ) ) {
 
   463 		$redirect['host'] = $original['host'];
 
   509 		$redirect['host'] = $original['host'];
 
       
   510 	}
 
   464 
   511 
   465 	$compare_original = array( $original['host'], $original['path'] );
 
   512 	$compare_original = array( $original['host'], $original['path'] );
 
   466 
   513 
   467 	if ( !empty( $original['port'] ) )
 
   514 	if ( ! empty( $original['port'] ) ) {
 
   468 		$compare_original[] = $original['port'];
 
   515 		$compare_original[] = $original['port'];
 
   469 
   516 	}
 
   470 	if ( !empty( $original['query'] ) )
 
   517 
       
   518 	if ( ! empty( $original['query'] ) ) {
 
   471 		$compare_original[] = $original['query'];
 
   519 		$compare_original[] = $original['query'];
 
       
   520 	}
 
   472 
   521 
   473 	$compare_redirect = array( $redirect['host'], $redirect['path'] );
 
   522 	$compare_redirect = array( $redirect['host'], $redirect['path'] );
 
   474 
   523 
   475 	if ( !empty( $redirect['port'] ) )
 
   524 	if ( ! empty( $redirect['port'] ) ) {
 
   476 		$compare_redirect[] = $redirect['port'];
 
   525 		$compare_redirect[] = $redirect['port'];
 
   477 
   526 	}
 
   478 	if ( !empty( $redirect['query'] ) )
 
   527 
       
   528 	if ( ! empty( $redirect['query'] ) ) {
 
   479 		$compare_redirect[] = $redirect['query'];
 
   529 		$compare_redirect[] = $redirect['query'];
 
       
   530 	}
 
   480 
   531 
   481 	if ( $compare_original !== $compare_redirect ) {
 
   532 	if ( $compare_original !== $compare_redirect ) {
 
   482 		$redirect_url = $redirect['scheme'] . '://' . $redirect['host'];
 
   533 		$redirect_url = $redirect['scheme'] . '://' . $redirect['host'];
 
   483 		if ( !empty($redirect['port']) )
 
   534 		if ( ! empty( $redirect['port'] ) ) {
 
   484 			$redirect_url .= ':' . $redirect['port'];
 
   535 			$redirect_url .= ':' . $redirect['port'];
 
       
   536 		}
 
   485 		$redirect_url .= $redirect['path'];
 
   537 		$redirect_url .= $redirect['path'];
 
   486 		if ( !empty($redirect['query']) )
 
   538 		if ( ! empty( $redirect['query'] ) ) {
 
   487 			$redirect_url .= '?' . $redirect['query'];
 
   539 			$redirect_url .= '?' . $redirect['query'];
 
       
   540 		}
 
   488 	}
 
   541 	}
 
   489 
   542 
   490 	if ( ! $redirect_url || $redirect_url == $requested_url ) {
 
   543 	if ( ! $redirect_url || $redirect_url == $requested_url ) {
 
   491 		return;
 
   544 		return;
 
   492 	}
 
   545 	}
 
   493 
   546 
   494 	// Hex encoded octets are case-insensitive.
 
   547 	// Hex encoded octets are case-insensitive.
 
   495 	if ( false !== strpos($requested_url, '%') ) {
 
   548 	if ( false !== strpos( $requested_url, '%' ) ) {
 
   496 		if ( !function_exists('lowercase_octets') ) {
 
   549 		if ( ! function_exists( 'lowercase_octets' ) ) {
 
   497 			/**
 
   550 			/**
 
   498 			 * Converts the first hex-encoded octet match to lowercase.
 
   551 			 * Converts the first hex-encoded octet match to lowercase.
 
   499 			 *
 
   552 			 *
 
   500 			 * @since 3.1.0
 
   553 			 * @since 3.1.0
 
   501 			 * @ignore
 
   554 			 * @ignore
 
   502 			 *
 
   555 			 *
 
   503 			 * @param array $matches Hex-encoded octet matches for the requested URL.
 
   556 			 * @param array $matches Hex-encoded octet matches for the requested URL.
 
   504 			 * @return string Lowercased version of the first match.
 
   557 			 * @return string Lowercased version of the first match.
 
   505 			 */
 
   558 			 */
 
   506 			function lowercase_octets($matches) {
 
   559 			function lowercase_octets( $matches ) {
 
   507 				return strtolower( $matches[0] );
 
   560 				return strtolower( $matches[0] );
 
   508 			}
 
   561 			}
 
   509 		}
 
   562 		}
 
   510 		$requested_url = preg_replace_callback('|%[a-fA-F0-9][a-fA-F0-9]|', 'lowercase_octets', $requested_url);
 
   563 		$requested_url = preg_replace_callback( '|%[a-fA-F0-9][a-fA-F0-9]|', 'lowercase_octets', $requested_url );
 
   511 	}
 
   564 	}
 
   512 
   565 
   513 	/**
 
   566 	/**
 
   514 	 * Filters the canonical redirect URL.
 
   567 	 * Filters the canonical redirect URL.
 
   515 	 *
 
   568 	 *
 
   527 		return;
 
   580 		return;
 
   528 	}
 
   581 	}
 
   529 
   582 
   530 	if ( $do_redirect ) {
 
   583 	if ( $do_redirect ) {
 
   531 		// protect against chained redirects
 
   584 		// protect against chained redirects
 
   532 		if ( !redirect_canonical($redirect_url, false) ) {
 
   585 		if ( ! redirect_canonical( $redirect_url, false ) ) {
 
   533 			wp_redirect($redirect_url, 301);
 
   586 			wp_redirect( $redirect_url, 301 );
 
   534 			exit();
 
   587 			exit();
 
   535 		} else {
 
   588 		} else {
 
   536 			// Debug
 
   589 			// Debug
 
   537 			// die("1: $redirect_url<br />2: " . redirect_canonical( $redirect_url, false ) );
 
   590 			// die("1: $redirect_url<br />2: " . redirect_canonical( $redirect_url, false ) );
 
   538 			return;
 
   591 			return;
 
   552  * @param string $query_string
 
   605  * @param string $query_string
 
   553  * @param array $args_to_check
 
   606  * @param array $args_to_check
 
   554  * @param string $url
 
   607  * @param string $url
 
   555  * @return string The altered query string
 
   608  * @return string The altered query string
 
   556  */
 
   609  */
 
   557 function _remove_qs_args_if_not_in_url( $query_string, Array $args_to_check, $url ) {
 
   610 function _remove_qs_args_if_not_in_url( $query_string, array $args_to_check, $url ) {
 
   558 	$parsed_url = @parse_url( $url );
 
   611 	$parsed_url = @parse_url( $url );
 
   559 	if ( ! empty( $parsed_url['query'] ) ) {
 
   612 	if ( ! empty( $parsed_url['query'] ) ) {
 
   560 		parse_str( $parsed_url['query'], $parsed_query );
 
   613 		parse_str( $parsed_url['query'], $parsed_query );
 
   561 		foreach ( $args_to_check as $qv ) {
 
   614 		foreach ( $args_to_check as $qv ) {
 
   562 			if ( !isset( $parsed_query[$qv] ) )
 
   615 			if ( ! isset( $parsed_query[ $qv ] ) ) {
 
   563 				$query_string = remove_query_arg( $qv, $query_string );
 
   616 				$query_string = remove_query_arg( $qv, $query_string );
 
       
   617 			}
 
   564 		}
 
   618 		}
 
   565 	} else {
 
   619 	} else {
 
   566 		$query_string = remove_query_arg( $args_to_check, $query_string );
 
   620 		$query_string = remove_query_arg( $args_to_check, $query_string );
 
   567 	}
 
   621 	}
 
   568 	return $query_string;
 
   622 	return $query_string;
 
   607  * @return false|string The correct URL if one is found. False on failure.
 
   661  * @return false|string The correct URL if one is found. False on failure.
 
   608  */
 
   662  */
 
   609 function redirect_guess_404_permalink() {
 
   663 function redirect_guess_404_permalink() {
 
   610 	global $wpdb;
 
   664 	global $wpdb;
 
   611 
   665 
   612 	if ( get_query_var('name') ) {
 
   666 	if ( get_query_var( 'name' ) ) {
 
   613 		$where = $wpdb->prepare("post_name LIKE %s", $wpdb->esc_like( get_query_var('name') ) . '%');
 
   667 		$where = $wpdb->prepare( 'post_name LIKE %s', $wpdb->esc_like( get_query_var( 'name' ) ) . '%' );
 
   614 
   668 
   615 		// if any of post_type, year, monthnum, or day are set, use them to refine the query
 
   669 		// if any of post_type, year, monthnum, or day are set, use them to refine the query
 
   616 		if ( get_query_var('post_type') )
 
   670 		if ( get_query_var( 'post_type' ) ) {
 
   617 			$where .= $wpdb->prepare(" AND post_type = %s", get_query_var('post_type'));
 
   671 			$where .= $wpdb->prepare( ' AND post_type = %s', get_query_var( 'post_type' ) );
 
   618 		else
 
   672 		} else {
 
   619 			$where .= " AND post_type IN ('" . implode( "', '", get_post_types( array( 'public' => true ) ) ) . "')";
 
   673 			$where .= " AND post_type IN ('" . implode( "', '", get_post_types( array( 'public' => true ) ) ) . "')";
 
   620 
   674 		}
 
   621 		if ( get_query_var('year') )
 
   675 
   622 			$where .= $wpdb->prepare(" AND YEAR(post_date) = %d", get_query_var('year'));
 
   676 		if ( get_query_var( 'year' ) ) {
 
   623 		if ( get_query_var('monthnum') )
 
   677 			$where .= $wpdb->prepare( ' AND YEAR(post_date) = %d', get_query_var( 'year' ) );
 
   624 			$where .= $wpdb->prepare(" AND MONTH(post_date) = %d", get_query_var('monthnum'));
 
   678 		}
 
   625 		if ( get_query_var('day') )
 
   679 		if ( get_query_var( 'monthnum' ) ) {
 
   626 			$where .= $wpdb->prepare(" AND DAYOFMONTH(post_date) = %d", get_query_var('day'));
 
   680 			$where .= $wpdb->prepare( ' AND MONTH(post_date) = %d', get_query_var( 'monthnum' ) );
 
   627 
   681 		}
 
   628 		$post_id = $wpdb->get_var("SELECT ID FROM $wpdb->posts WHERE $where AND post_status = 'publish'");
 
   682 		if ( get_query_var( 'day' ) ) {
 
   629 		if ( ! $post_id )
 
   683 			$where .= $wpdb->prepare( ' AND DAYOFMONTH(post_date) = %d', get_query_var( 'day' ) );
 
       
   684 		}
 
       
   685 
       
   686 		$post_id = $wpdb->get_var( "SELECT ID FROM $wpdb->posts WHERE $where AND post_status = 'publish'" );
 
       
   687 		if ( ! $post_id ) {
 
   630 			return false;
 
   688 			return false;
 
   631 		if ( get_query_var( 'feed' ) )
 
   689 		}
 
       
   690 		if ( get_query_var( 'feed' ) ) {
 
   632 			return get_post_comments_feed_link( $post_id, get_query_var( 'feed' ) );
 
   691 			return get_post_comments_feed_link( $post_id, get_query_var( 'feed' ) );
 
   633 		elseif ( get_query_var( 'page' ) && 1 < get_query_var( 'page' ) )
 
   692 		} elseif ( get_query_var( 'page' ) && 1 < get_query_var( 'page' ) ) {
 
   634 			return trailingslashit( get_permalink( $post_id ) ) . user_trailingslashit( get_query_var( 'page' ), 'single_paged' );
 
   693 			return trailingslashit( get_permalink( $post_id ) ) . user_trailingslashit( get_query_var( 'page' ), 'single_paged' );
 
   635 		else
 
   694 		} else {
 
   636 			return get_permalink( $post_id );
 
   695 			return get_permalink( $post_id );
 
       
   696 		}
 
   637 	}
 
   697 	}
 
   638 
   698 
   639 	return false;
 
   699 	return false;
 
   640 }
 
   700 }
 
   641 
   701 
   649  *
 
   709  *
 
   650  * @global WP_Rewrite $wp_rewrite
 
   710  * @global WP_Rewrite $wp_rewrite
 
   651  */
 
   711  */
 
   652 function wp_redirect_admin_locations() {
 
   712 function wp_redirect_admin_locations() {
 
   653 	global $wp_rewrite;
 
   713 	global $wp_rewrite;
 
   654 	if ( ! ( is_404() && $wp_rewrite->using_permalinks() ) )
 
   714 	if ( ! ( is_404() && $wp_rewrite->using_permalinks() ) ) {
 
   655 		return;
 
   715 		return;
 
       
   716 	}
 
   656 
   717 
   657 	$admins = array(
 
   718 	$admins = array(
 
   658 		home_url( 'wp-admin', 'relative' ),
 
   719 		home_url( 'wp-admin', 'relative' ),
 
   659 		home_url( 'dashboard', 'relative' ),
 
   720 		home_url( 'dashboard', 'relative' ),
 
   660 		home_url( 'admin', 'relative' ),
 
   721 		home_url( 'admin', 'relative' ),
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