mirror of
https://github.com/WordPress/WordPress.git
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82547b21b6
see #25576, [25775]. Built from https://develop.svn.wordpress.org/trunk@25796 git-svn-id: http://core.svn.wordpress.org/trunk@25708 1a063a9b-81f0-0310-95a4-ce76da25c4cd
701 lines
19 KiB
PHP
701 lines
19 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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* Returns whether the server is running Apache with the mod_rewrite module loaded.
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*
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* @since 2.0.0
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*
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* @return bool
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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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/**
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* Filter whether Apache and mod_rewrite are present.
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*
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* This filter was previously used to force URL rewriting for other servers,
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* like nginx. Use the got_url_rewrite filter in got_url_rewrite() instead.
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*
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* @see got_url_rewrite()
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*
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* @since 2.5.0
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* @param bool $got_rewrite Whether Apache and mod_rewrite are present.
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*/
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return apply_filters('got_rewrite', $got_rewrite);
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}
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/**
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* Returns whether the server supports URL rewriting.
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*
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* Detects Apache's mod_rewrite, IIS 7.0+ permalink support, and nginx.
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*
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* @since 3.7.0
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*
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* @return bool Whether the server supports URL rewriting.
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*/
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function got_url_rewrite() {
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$got_url_rewrite = ( got_mod_rewrite() || $GLOBALS['is_nginx'] || iis7_supports_permalinks() );
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/**
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* Filter whether URL rewriting is available.
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*
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* @since 3.7.0
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* @param bool $got_url_rewrite Whether URL rewriting is available.
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*/
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return apply_filters( 'got_url_rewrite', $got_url_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 1.5.0
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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 1.5.0
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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 1.5.0
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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 = $home_path.'.htaccess';
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// If the file doesn't already exist check for write access to the directory and whether we have some rules.
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// else check for write access to the file.
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if ((!file_exists($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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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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$web_config_file = $home_path . 'web.config';
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// Using win_is_writable() instead of is_writable() because of a bug in Windows PHP
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if ( iis7_supports_permalinks() && ( ( ! file_exists($web_config_file) && win_is_writable($home_path) && $wp_rewrite->using_mod_rewrite_permalinks() ) || win_is_writable($web_config_file) ) ) {
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$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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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 1.5.0
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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, home or page_on_front changed, flush rewrite rules.
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*
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* @since 2.1.0
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*
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* @param string $old_value
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* @param string $value
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*/
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function update_home_siteurl( $old_value, $value ) {
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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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flush_rewrite_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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add_action( 'update_option_page_on_front', 'update_home_siteurl', 10, 2 );
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/**
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* Shorten an URL, to be used as link text
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*
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* @since 1.2.1
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*
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* @param string $url
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* @return string
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*/
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function url_shorten( $url ) {
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$short_url = str_replace( array( 'http://', 'www.' ), '', $url );
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$short_url = untrailingslashit( $short_url );
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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 2.0.0
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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 2.1.0
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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() && is_string( $message->get_error_data() ) )
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$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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wp_ob_end_flush_all();
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flush();
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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 $out;
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}
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/**
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* Saves option for number of rows when listing posts, pages, comments, etc.
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*
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* @since 2.8
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**/
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function set_screen_options() {
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if ( isset($_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 ( $option != sanitize_key( $option ) )
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return;
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$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( $type, get_taxonomies() ) )
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$map_option = 'edit_tags_per_page';
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elseif ( in_array( $type, get_post_types() ) )
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$map_option = 'edit_per_page';
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else
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$option = str_replace('-', '_', $option);
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switch ( $map_option ) {
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case 'edit_per_page':
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case 'users_per_page':
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case 'edit_comments_per_page':
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case 'upload_per_page':
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case 'edit_tags_per_page':
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case 'plugins_per_page':
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// Network admin
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case 'sites_network_per_page':
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case 'users_network_per_page':
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case 'site_users_network_per_page':
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case 'plugins_network_per_page':
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case 'themes_network_per_page':
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case 'site_themes_network_per_page':
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$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_safe_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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/**
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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[starts-with(@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[starts-with(@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);
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}
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return true;
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}
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/**
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* Add WordPress rewrite rule to 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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* @param string $filename The file path to the configuration file
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* @param string $rewrite_rule The XML fragment with URL Rewrite rule
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* @return bool
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*/
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function iis7_add_rewrite_rule($filename, $rewrite_rule) {
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if ( ! class_exists('DOMDocument') )
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return false;
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// If configuration file does not exist then we create one.
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if ( ! file_exists($filename) ) {
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$fp = fopen( $filename, 'w');
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fwrite($fp, '<configuration/>');
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fclose($fp);
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}
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$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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// First check if the rule already exists as in that case there is no need to re-add it
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$wordpress_rules = $xpath->query('/configuration/system.webServer/rewrite/rules/rule[starts-with(@name,\'wordpress\')]');
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if ( $wordpress_rules->length > 0 )
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return true;
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// Check the XPath to the rewrite rule and create XML nodes if they do not exist
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$xmlnodes = $xpath->query('/configuration/system.webServer/rewrite/rules');
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if ( $xmlnodes->length > 0 ) {
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$rules_node = $xmlnodes->item(0);
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} else {
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$rules_node = $doc->createElement('rules');
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$xmlnodes = $xpath->query('/configuration/system.webServer/rewrite');
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if ( $xmlnodes->length > 0 ) {
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$rewrite_node = $xmlnodes->item(0);
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$rewrite_node->appendChild($rules_node);
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} else {
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$rewrite_node = $doc->createElement('rewrite');
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$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);
|
|
}
|
|
|
|
/**
|
|
* Display the default admin color scheme picker (Used in user-edit.php)
|
|
*
|
|
* @since 3.0.0
|
|
*/
|
|
function admin_color_scheme_picker() {
|
|
global $_wp_admin_css_colors, $user_id; ?>
|
|
<fieldset><legend class="screen-reader-text"><span><?php _e('Admin Color Scheme')?></span></legend>
|
|
<?php
|
|
$current_color = get_user_option('admin_color', $user_id);
|
|
if ( empty($current_color) )
|
|
$current_color = 'fresh';
|
|
foreach ( $_wp_admin_css_colors as $color => $color_info ): ?>
|
|
<div class="color-option"><input name="admin_color" id="admin_color_<?php echo esc_attr( $color ); ?>" type="radio" value="<?php echo esc_attr( $color ); ?>" class="tog" <?php checked($color, $current_color); ?> />
|
|
<table class="color-palette">
|
|
<tr>
|
|
<?php foreach ( $color_info->colors as $html_color ): ?>
|
|
<td style="background-color: <?php echo esc_attr( $html_color ); ?>" title="<?php echo esc_attr( $color ); ?>"> </td>
|
|
<?php endforeach; ?>
|
|
</tr>
|
|
</table>
|
|
|
|
<label for="admin_color_<?php echo esc_attr( $color ); ?>"><?php echo esc_html( $color_info->name ); ?></label>
|
|
</div>
|
|
<?php endforeach; ?>
|
|
</fieldset>
|
|
<?php
|
|
}
|
|
|
|
function _ipad_meta() {
|
|
if ( wp_is_mobile() ) {
|
|
?>
|
|
<meta name="viewport" id="viewport-meta" content="width=device-width, initial-scale=1">
|
|
<?php
|
|
}
|
|
}
|
|
add_action('admin_head', '_ipad_meta');
|
|
|
|
/**
|
|
* Check lock status for posts displayed on the Posts screen
|
|
*
|
|
* @since 3.6
|
|
*/
|
|
function wp_check_locked_posts( $response, $data, $screen_id ) {
|
|
$checked = array();
|
|
|
|
if ( array_key_exists( 'wp-check-locked-posts', $data ) && is_array( $data['wp-check-locked-posts'] ) ) {
|
|
foreach ( $data['wp-check-locked-posts'] as $key ) {
|
|
if ( ! $post_id = absint( substr( $key, 5 ) ) )
|
|
continue;
|
|
|
|
if ( ( $user_id = wp_check_post_lock( $post_id ) ) && ( $user = get_userdata( $user_id ) ) && current_user_can( 'edit_post', $post_id ) ) {
|
|
$send = array( 'text' => sprintf( __( '%s is currently editing' ), $user->display_name ) );
|
|
|
|
if ( ( $avatar = get_avatar( $user->ID, 18 ) ) && preg_match( "|src='([^']+)'|", $avatar, $matches ) )
|
|
$send['avatar_src'] = $matches[1];
|
|
|
|
$checked[$key] = $send;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( ! empty( $checked ) )
|
|
$response['wp-check-locked-posts'] = $checked;
|
|
|
|
return $response;
|
|
}
|
|
add_filter( 'heartbeat_received', 'wp_check_locked_posts', 10, 3 );
|
|
|
|
/**
|
|
* Check lock status on the New/Edit Post screen and refresh the lock
|
|
*
|
|
* @since 3.6
|
|
*/
|
|
function wp_refresh_post_lock( $response, $data, $screen_id ) {
|
|
if ( array_key_exists( 'wp-refresh-post-lock', $data ) ) {
|
|
$received = $data['wp-refresh-post-lock'];
|
|
$send = array();
|
|
|
|
if ( ! $post_id = absint( $received['post_id'] ) )
|
|
return $response;
|
|
|
|
if ( ! current_user_can('edit_post', $post_id) )
|
|
return $response;
|
|
|
|
if ( ( $user_id = wp_check_post_lock( $post_id ) ) && ( $user = get_userdata( $user_id ) ) ) {
|
|
$error = array(
|
|
'text' => sprintf( __( '%s has taken over and is currently editing.' ), $user->display_name )
|
|
);
|
|
|
|
if ( $avatar = get_avatar( $user->ID, 64 ) ) {
|
|
if ( preg_match( "|src='([^']+)'|", $avatar, $matches ) )
|
|
$error['avatar_src'] = $matches[1];
|
|
}
|
|
|
|
$send['lock_error'] = $error;
|
|
} else {
|
|
if ( $new_lock = wp_set_post_lock( $post_id ) )
|
|
$send['new_lock'] = implode( ':', $new_lock );
|
|
}
|
|
|
|
$response['wp-refresh-post-lock'] = $send;
|
|
}
|
|
|
|
return $response;
|
|
}
|
|
add_filter( 'heartbeat_received', 'wp_refresh_post_lock', 10, 3 );
|
|
|
|
/**
|
|
* Check nonce expiration on the New/Edit Post screen and refresh if needed
|
|
*
|
|
* @since 3.6
|
|
*/
|
|
function wp_refresh_post_nonces( $response, $data, $screen_id ) {
|
|
if ( array_key_exists( 'wp-refresh-post-nonces', $data ) ) {
|
|
$received = $data['wp-refresh-post-nonces'];
|
|
$response['wp-refresh-post-nonces'] = array( 'check' => 1 );
|
|
|
|
if ( ! $post_id = absint( $received['post_id'] ) )
|
|
return $response;
|
|
|
|
if ( ! current_user_can( 'edit_post', $post_id ) || empty( $received['post_nonce'] ) )
|
|
return $response;
|
|
|
|
if ( 2 === wp_verify_nonce( $received['post_nonce'], 'update-post_' . $post_id ) ) {
|
|
$response['wp-refresh-post-nonces'] = array(
|
|
'replace' => array(
|
|
'autosavenonce' => wp_create_nonce('autosave'),
|
|
'getpermalinknonce' => wp_create_nonce('getpermalink'),
|
|
'samplepermalinknonce' => wp_create_nonce('samplepermalink'),
|
|
'closedpostboxesnonce' => wp_create_nonce('closedpostboxes'),
|
|
'_ajax_linking_nonce' => wp_create_nonce( 'internal-linking' ),
|
|
'_wpnonce' => wp_create_nonce( 'update-post_' . $post_id ),
|
|
),
|
|
'heartbeatNonce' => wp_create_nonce( 'heartbeat-nonce' ),
|
|
);
|
|
}
|
|
}
|
|
|
|
return $response;
|
|
}
|
|
add_filter( 'heartbeat_received', 'wp_refresh_post_nonces', 10, 3 );
|