666 lines
18 KiB
PHP
666 lines
18 KiB
PHP
<?php
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/**
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* Misc WordPress Administration API.
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*
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* @package WordPress
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* @subpackage Administration
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*/
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/**
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* {@internal Missing Short Description}}
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*
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* @since unknown
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*
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* @return unknown
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*/
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function got_mod_rewrite() {
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$got_rewrite = apache_mod_loaded('mod_rewrite', true);
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return apply_filters('got_rewrite', $got_rewrite);
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}
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/**
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* {@internal Missing Short Description}}
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*
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* @since unknown
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*
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* @param unknown_type $filename
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* @param unknown_type $marker
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* @return array An array of strings from a file (.htaccess ) from between BEGIN and END markers.
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*/
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function extract_from_markers( $filename, $marker ) {
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$result = array ();
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if (!file_exists( $filename ) ) {
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return $result;
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}
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if ( $markerdata = explode( "\n", implode( '', file( $filename ) ) ));
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{
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$state = false;
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foreach ( $markerdata as $markerline ) {
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if (strpos($markerline, '# END ' . $marker) !== false)
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$state = false;
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if ( $state )
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$result[] = $markerline;
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if (strpos($markerline, '# BEGIN ' . $marker) !== false)
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$state = true;
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}
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}
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return $result;
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}
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/**
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* {@internal Missing Short Description}}
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*
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* Inserts an array of strings into a file (.htaccess ), placing it between
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* BEGIN and END markers. Replaces existing marked info. Retains surrounding
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* data. Creates file if none exists.
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*
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* @since unknown
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*
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* @param unknown_type $filename
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* @param unknown_type $marker
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* @param unknown_type $insertion
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* @return bool True on write success, false on failure.
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*/
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function insert_with_markers( $filename, $marker, $insertion ) {
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if (!file_exists( $filename ) || is_writeable( $filename ) ) {
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if (!file_exists( $filename ) ) {
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$markerdata = '';
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} else {
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$markerdata = explode( "\n", implode( '', file( $filename ) ) );
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}
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if ( !$f = @fopen( $filename, 'w' ) )
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return false;
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$foundit = false;
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if ( $markerdata ) {
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$state = true;
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foreach ( $markerdata as $n => $markerline ) {
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if (strpos($markerline, '# BEGIN ' . $marker) !== false)
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$state = false;
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if ( $state ) {
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if ( $n + 1 < count( $markerdata ) )
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fwrite( $f, "{$markerline}\n" );
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else
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fwrite( $f, "{$markerline}" );
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}
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if (strpos($markerline, '# END ' . $marker) !== false) {
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fwrite( $f, "# BEGIN {$marker}\n" );
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if ( is_array( $insertion ))
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foreach ( $insertion as $insertline )
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fwrite( $f, "{$insertline}\n" );
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fwrite( $f, "# END {$marker}\n" );
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$state = true;
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$foundit = true;
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}
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}
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}
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if (!$foundit) {
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fwrite( $f, "\n# BEGIN {$marker}\n" );
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foreach ( $insertion as $insertline )
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fwrite( $f, "{$insertline}\n" );
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fwrite( $f, "# END {$marker}\n" );
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}
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fclose( $f );
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return true;
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} else {
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return false;
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}
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}
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/**
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* Updates the htaccess file with the current rules if it is writable.
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*
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* Always writes to the file if it exists and is writable to ensure that we
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* blank out old rules.
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*
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* @since unknown
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*/
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function save_mod_rewrite_rules() {
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if ( is_multisite() )
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return;
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global $wp_rewrite;
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$home_path = get_home_path();
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$htaccess_file = $home_path.'.htaccess';
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// If the file doesn't already exists check for write access to the directory and whether we have some rules.
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// else check for write access to the file.
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if ((!file_exists($htaccess_file) && is_writable($home_path) && $wp_rewrite->using_mod_rewrite_permalinks()) || is_writable($htaccess_file)) {
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if ( got_mod_rewrite() ) {
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$rules = explode( "\n", $wp_rewrite->mod_rewrite_rules() );
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return insert_with_markers( $htaccess_file, 'WordPress', $rules );
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}
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}
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return false;
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}
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/**
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* Updates the IIS web.config file with the current rules if it is writable.
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* If the permalinks do not require rewrite rules then the rules are deleted from the web.config file.
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*
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* @since 2.8.0
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*
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* @return bool True if web.config was updated successfully
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*/
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function iis7_save_url_rewrite_rules(){
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global $wp_rewrite;
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$home_path = get_home_path();
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$web_config_file = $home_path . 'web.config';
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// Using win_is_writable() instead of is_writable() because of a bug in Windows PHP
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if ( ( ! file_exists($web_config_file) && win_is_writable($home_path) && $wp_rewrite->using_mod_rewrite_permalinks() ) || win_is_writable($web_config_file) ) {
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if ( iis7_supports_permalinks() ) {
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$rule = $wp_rewrite->iis7_url_rewrite_rules(false, '', '');
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if ( ! empty($rule) ) {
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return iis7_add_rewrite_rule($web_config_file, $rule);
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} else {
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return iis7_delete_rewrite_rule($web_config_file);
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}
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}
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}
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return false;
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}
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/**
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* {@internal Missing Short Description}}
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*
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* @since unknown
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*
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* @param unknown_type $file
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*/
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function update_recently_edited( $file ) {
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$oldfiles = (array ) get_option( 'recently_edited' );
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if ( $oldfiles ) {
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$oldfiles = array_reverse( $oldfiles );
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$oldfiles[] = $file;
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$oldfiles = array_reverse( $oldfiles );
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$oldfiles = array_unique( $oldfiles );
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if ( 5 < count( $oldfiles ))
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array_pop( $oldfiles );
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} else {
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$oldfiles[] = $file;
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}
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update_option( 'recently_edited', $oldfiles );
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}
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/**
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* If siteurl or home changed, flush rewrite rules.
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*
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* @since unknown
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*
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* @param unknown_type $old_value
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* @param unknown_type $value
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*/
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function update_home_siteurl( $old_value, $value ) {
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global $wp_rewrite;
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if ( defined( "WP_INSTALLING" ) )
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return;
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// If home changed, write rewrite rules to new location.
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$wp_rewrite->flush_rules();
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}
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add_action( 'update_option_home', 'update_home_siteurl', 10, 2 );
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add_action( 'update_option_siteurl', 'update_home_siteurl', 10, 2 );
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/**
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* {@internal Missing Short Description}}
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*
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* @since unknown
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*
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* @param unknown_type $url
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* @return unknown
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*/
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function url_shorten( $url ) {
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$short_url = str_replace( 'http://', '', stripslashes( $url ));
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$short_url = str_replace( 'www.', '', $short_url );
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if ('/' == substr( $short_url, -1 ))
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$short_url = substr( $short_url, 0, -1 );
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if ( strlen( $short_url ) > 35 )
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$short_url = substr( $short_url, 0, 32 ).'...';
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return $short_url;
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}
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/**
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* Resets global variables based on $_GET and $_POST
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*
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* This function resets global variables based on the names passed
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* in the $vars array to the value of $_POST[$var] or $_GET[$var] or ''
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* if neither is defined.
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*
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* @since unknown
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*
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* @param array $vars An array of globals to reset.
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*/
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function wp_reset_vars( $vars ) {
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for ( $i=0; $i<count( $vars ); $i += 1 ) {
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$var = $vars[$i];
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global $$var;
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if ( empty( $_POST[$var] ) ) {
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if ( empty( $_GET[$var] ) )
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$$var = '';
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else
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$$var = $_GET[$var];
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} else {
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$$var = $_POST[$var];
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}
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}
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}
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/**
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* {@internal Missing Short Description}}
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*
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* @since unknown
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*
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* @param unknown_type $message
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*/
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function show_message($message) {
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if ( is_wp_error($message) ){
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if ( $message->get_error_data() )
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$message = $message->get_error_message() . ': ' . $message->get_error_data();
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else
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$message = $message->get_error_message();
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}
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echo "<p>$message</p>\n";
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}
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function wp_doc_link_parse( $content ) {
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if ( !is_string( $content ) || empty( $content ) )
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return array();
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if ( !function_exists('token_get_all') )
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return array();
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$tokens = token_get_all( $content );
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$functions = array();
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$ignore_functions = array();
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for ( $t = 0, $count = count( $tokens ); $t < $count; $t++ ) {
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if ( !is_array( $tokens[$t] ) ) continue;
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if ( T_STRING == $tokens[$t][0] && ( '(' == $tokens[ $t + 1 ] || '(' == $tokens[ $t + 2 ] ) ) {
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// If it's a function or class defined locally, there's not going to be any docs available
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if ( ( isset( $tokens[ $t - 2 ][1] ) && in_array( $tokens[ $t - 2 ][1], array( 'function', 'class' ) ) ) || ( isset( $tokens[ $t - 2 ][0] ) && T_OBJECT_OPERATOR == $tokens[ $t - 1 ][0] ) ) {
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$ignore_functions[] = $tokens[$t][1];
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}
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// Add this to our stack of unique references
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$functions[] = $tokens[$t][1];
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}
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}
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$functions = array_unique( $functions );
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sort( $functions );
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$ignore_functions = apply_filters( 'documentation_ignore_functions', $ignore_functions );
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$ignore_functions = array_unique( $ignore_functions );
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$out = array();
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foreach ( $functions as $function ) {
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if ( in_array( $function, $ignore_functions ) )
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continue;
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$out[] = $function;
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}
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return $out;
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}
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/**
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* Determines the language to use for CodePress syntax highlighting,
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* based only on a filename.
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*
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* @since 2.8
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*
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* @param string $filename The name of the file to be highlighting
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**/
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function codepress_get_lang( $filename ) {
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$codepress_supported_langs = apply_filters( 'codepress_supported_langs',
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array( '.css' => 'css',
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'.js' => 'javascript',
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'.php' => 'php',
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'.html' => 'html',
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'.htm' => 'html',
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'.txt' => 'text'
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) );
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$extension = substr( $filename, strrpos( $filename, '.' ) );
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if ( $extension && array_key_exists( $extension, $codepress_supported_langs ) )
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return $codepress_supported_langs[$extension];
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return 'generic';
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}
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/**
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* Adds Javascript required to make CodePress work on the theme/plugin editors.
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*
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* This code is attached to the action admin_print_footer_scripts.
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*
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* @since 2.8
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**/
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function codepress_footer_js() {
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// Script-loader breaks CP's automatic path-detection, thus CodePress.path
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// CP edits in an iframe, so we need to grab content back into normal form
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?><script type="text/javascript">
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/* <![CDATA[ */
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var codepress_path = '<?php echo includes_url('js/codepress/'); ?>';
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jQuery('#template').submit(function(){
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if (jQuery('#newcontent_cp').length)
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jQuery('#newcontent_cp').val(newcontent.getCode()).removeAttr('disabled');
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});
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jQuery('#codepress-on').hide();
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jQuery('#codepress-off').show();
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/* ]]> */
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</script>
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<?php
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}
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/**
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* Determine whether to use CodePress.
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*
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* @since 2.8
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**/
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function use_codepress() {
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if ( isset($_GET['codepress']) ) {
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$on = 'on' == $_GET['codepress'] ? 'on' : 'off';
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set_user_setting( 'codepress', $on );
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} else {
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$on = get_user_setting('codepress', 'on');
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}
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if ( 'on' == $on ) {
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add_action( 'admin_print_footer_scripts', 'codepress_footer_js' );
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return true;
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}
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return false;
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}
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/**
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* Saves option for number of rows when listing posts, pages, comments, etc.
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*
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* @since 2.8
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**/
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function set_screen_options() {
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if ( isset($_POST['wp_screen_options']) && is_array($_POST['wp_screen_options']) ) {
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check_admin_referer( 'screen-options-nonce', 'screenoptionnonce' );
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if ( !$user = wp_get_current_user() )
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return;
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$option = $_POST['wp_screen_options']['option'];
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$value = $_POST['wp_screen_options']['value'];
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if ( !preg_match( '/^[a-z_-]+$/', $option ) )
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return;
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$option = str_replace('-', '_', $option);
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$map_option = $option;
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$type = str_replace('edit_', '', $map_option);
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$type = str_replace('_per_page', '', $type);
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if ( in_array($type, get_post_types()) )
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$map_option = 'edit_per_page';
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switch ( $map_option ) {
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case 'edit_per_page':
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case 'edit_comments_per_page':
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case 'upload_per_page':
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case 'categories_per_page':
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case 'edit_tags_per_page':
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case 'plugins_per_page':
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$value = (int) $value;
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if ( $value < 1 || $value > 999 )
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return;
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break;
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default:
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$value = apply_filters('set-screen-option', false, $option, $value);
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if ( false === $value )
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return;
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break;
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}
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update_user_meta($user->ID, $option, $value);
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wp_redirect( remove_query_arg( array('pagenum', 'apage', 'paged'), wp_get_referer() ) );
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exit;
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}
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}
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function wp_menu_unfold() {
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if ( isset($_GET['unfoldmenu']) ) {
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delete_user_setting('mfold');
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wp_redirect( remove_query_arg( 'unfoldmenu', stripslashes($_SERVER['REQUEST_URI']) ) );
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exit;
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}
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}
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/**
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* Check if IIS 7 supports pretty permalinks
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*
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* @since 2.8.0
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*
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* @return bool
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*/
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function iis7_supports_permalinks() {
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global $is_iis7;
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$supports_permalinks = false;
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if ( $is_iis7 ) {
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/* First we check if the DOMDocument class exists. If it does not exist,
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* which is the case for PHP 4.X, then we cannot easily update the xml configuration file,
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* hence we just bail out and tell user that pretty permalinks cannot be used.
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* This is not a big issue because PHP 4.X is going to be depricated and for IIS it
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* is recommended to use PHP 5.X NTS.
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* Next we check if the URL Rewrite Module 1.1 is loaded and enabled for the web site. When
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* URL Rewrite 1.1 is loaded it always sets a server variable called 'IIS_UrlRewriteModule'.
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* Lastly we make sure that PHP is running via FastCGI. This is important because if it runs
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* via ISAPI then pretty permalinks will not work.
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*/
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$supports_permalinks = class_exists('DOMDocument') && isset($_SERVER['IIS_UrlRewriteModule']) && ( php_sapi_name() == 'cgi-fcgi' );
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}
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return apply_filters('iis7_supports_permalinks', $supports_permalinks);
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}
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/**
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* Check if rewrite rule for WordPress already exists in the IIS 7 configuration file
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*
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* @since 2.8.0
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*
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* @return bool
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* @param string $filename The file path to the configuration file
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*/
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function iis7_rewrite_rule_exists($filename) {
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if ( ! file_exists($filename) )
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return false;
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if ( ! class_exists('DOMDocument') )
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return false;
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$doc = new DOMDocument();
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if ( $doc->load($filename) === false )
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return false;
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$xpath = new DOMXPath($doc);
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$rules = $xpath->query('/configuration/system.webServer/rewrite/rules/rule[@name=\'wordpress\']');
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if ( $rules->length == 0 )
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return false;
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else
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return true;
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}
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/**
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* Delete WordPress rewrite rule from web.config file if it exists there
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*
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* @since 2.8.0
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*
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* @param string $filename Name of the configuration file
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* @return bool
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*/
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function iis7_delete_rewrite_rule($filename) {
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// If configuration file does not exist then rules also do not exist so there is nothing to delete
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if ( ! file_exists($filename) )
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return true;
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if ( ! class_exists('DOMDocument') )
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return false;
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$doc = new DOMDocument();
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$doc->preserveWhiteSpace = false;
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if ( $doc -> load($filename) === false )
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return false;
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$xpath = new DOMXPath($doc);
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$rules = $xpath->query('/configuration/system.webServer/rewrite/rules/rule[@name=\'wordpress\']');
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if ( $rules->length > 0 ) {
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$child = $rules->item(0);
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$parent = $child->parentNode;
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$parent->removeChild($child);
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$doc->formatOutput = true;
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|
saveDomDocument($doc, $filename);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Add WordPress rewrite rule to the IIS 7 configuration file.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param string $filename The file path to the configuration file
|
|
* @param string $rewrite_rule The XML fragment with URL Rewrite rule
|
|
* @return bool
|
|
*/
|
|
function iis7_add_rewrite_rule($filename, $rewrite_rule) {
|
|
if ( ! class_exists('DOMDocument') )
|
|
return false;
|
|
|
|
// If configuration file does not exist then we create one.
|
|
if ( ! file_exists($filename) ) {
|
|
$fp = fopen( $filename, 'w');
|
|
fwrite($fp, '<configuration/>');
|
|
fclose($fp);
|
|
}
|
|
|
|
$doc = new DOMDocument();
|
|
$doc->preserveWhiteSpace = false;
|
|
|
|
if ( $doc->load($filename) === false )
|
|
return false;
|
|
|
|
$xpath = new DOMXPath($doc);
|
|
|
|
// First check if the rule already exists as in that case there is no need to re-add it
|
|
$wordpress_rules = $xpath->query('/configuration/system.webServer/rewrite/rules/rule[@name=\'wordpress\']');
|
|
if ( $wordpress_rules->length > 0 )
|
|
return true;
|
|
|
|
// Check the XPath to the rewrite rule and create XML nodes if they do not exist
|
|
$xmlnodes = $xpath->query('/configuration/system.webServer/rewrite/rules');
|
|
if ( $xmlnodes->length > 0 ) {
|
|
$rules_node = $xmlnodes->item(0);
|
|
} else {
|
|
$rules_node = $doc->createElement('rules');
|
|
|
|
$xmlnodes = $xpath->query('/configuration/system.webServer/rewrite');
|
|
if ( $xmlnodes->length > 0 ) {
|
|
$rewrite_node = $xmlnodes->item(0);
|
|
$rewrite_node->appendChild($rules_node);
|
|
} else {
|
|
$rewrite_node = $doc->createElement('rewrite');
|
|
$rewrite_node->appendChild($rules_node);
|
|
|
|
$xmlnodes = $xpath->query('/configuration/system.webServer');
|
|
if ( $xmlnodes->length > 0 ) {
|
|
$system_webServer_node = $xmlnodes->item(0);
|
|
$system_webServer_node->appendChild($rewrite_node);
|
|
} else {
|
|
$system_webServer_node = $doc->createElement('system.webServer');
|
|
$system_webServer_node->appendChild($rewrite_node);
|
|
|
|
$xmlnodes = $xpath->query('/configuration');
|
|
if ( $xmlnodes->length > 0 ) {
|
|
$config_node = $xmlnodes->item(0);
|
|
$config_node->appendChild($system_webServer_node);
|
|
} else {
|
|
$config_node = $doc->createElement('configuration');
|
|
$doc->appendChild($config_node);
|
|
$config_node->appendChild($system_webServer_node);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
$rule_fragment = $doc->createDocumentFragment();
|
|
$rule_fragment->appendXML($rewrite_rule);
|
|
$rules_node->appendChild($rule_fragment);
|
|
|
|
$doc->encoding = "UTF-8";
|
|
$doc->formatOutput = true;
|
|
saveDomDocument($doc, $filename);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Saves the XML document into a file
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param DOMDocument $doc
|
|
* @param string $filename
|
|
*/
|
|
function saveDomDocument($doc, $filename) {
|
|
$config = $doc->saveXML();
|
|
$config = preg_replace("/([^\r])\n/", "$1\r\n", $config);
|
|
$fp = fopen($filename, 'w');
|
|
fwrite($fp, $config);
|
|
fclose($fp);
|
|
}
|
|
|
|
/**
|
|
* Workaround for Windows bug in is_writable() function
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param object $path
|
|
* @return bool
|
|
*/
|
|
function win_is_writable($path) {
|
|
/* will work in despite of Windows ACLs bug
|
|
* NOTE: use a trailing slash for folders!!!
|
|
* see http://bugs.php.net/bug.php?id=27609
|
|
* see http://bugs.php.net/bug.php?id=30931
|
|
*/
|
|
|
|
if ( $path{strlen($path)-1} == '/' ) // recursively return a temporary file path
|
|
return win_is_writable($path . uniqid(mt_rand()) . '.tmp');
|
|
else if ( is_dir($path) )
|
|
return win_is_writable($path . '/' . uniqid(mt_rand()) . '.tmp');
|
|
// check tmp file for read/write capabilities
|
|
$rm = file_exists($path);
|
|
$f = @fopen($path, 'a');
|
|
if ($f===false)
|
|
return false;
|
|
fclose($f);
|
|
if ( ! $rm )
|
|
unlink($path);
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Send a HTTP header to disable content type sniffing in browsers which support it.
|
|
*
|
|
* @link http://blogs.msdn.com/ie/archive/2008/07/02/ie8-security-part-v-comprehensive-protection.aspx
|
|
* @link http://src.chromium.org/viewvc/chrome?view=rev&revision=6985
|
|
*
|
|
* @since 3.0.0.
|
|
* @return none
|
|
*/
|
|
function send_nosniff_header() {
|
|
@header( 'X-Content-Type-Options: nosniff' );
|
|
}
|
|
?>
|