WordPress/wp-admin/includes/misc.php

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<?php
/**
* Misc WordPress Administration API.
*
* @package WordPress
* @subpackage Administration
*/
/**
* {@internal Missing Short Description}}
*
* @since unknown
*
* @return unknown
*/
function got_mod_rewrite() {
$got_rewrite = apache_mod_loaded('mod_rewrite', true);
return apply_filters('got_rewrite', $got_rewrite);
}
/**
* {@internal Missing Short Description}}
*
* @since unknown
*
* @param unknown_type $filename
* @param unknown_type $marker
* @return array An array of strings from a file (.htaccess ) from between BEGIN and END markers.
*/
function extract_from_markers( $filename, $marker ) {
$result = array ();
if (!file_exists( $filename ) ) {
return $result;
}
if ( $markerdata = explode( "\n", implode( '', file( $filename ) ) ));
{
$state = false;
foreach ( $markerdata as $markerline ) {
if (strpos($markerline, '# END ' . $marker) !== false)
$state = false;
if ( $state )
$result[] = $markerline;
if (strpos($markerline, '# BEGIN ' . $marker) !== false)
$state = true;
}
}
return $result;
}
/**
* {@internal Missing Short Description}}
*
* Inserts an array of strings into a file (.htaccess ), placing it between
* BEGIN and END markers. Replaces existing marked info. Retains surrounding
* data. Creates file if none exists.
*
* @since unknown
*
* @param unknown_type $filename
* @param unknown_type $marker
* @param unknown_type $insertion
* @return bool True on write success, false on failure.
*/
function insert_with_markers( $filename, $marker, $insertion ) {
if (!file_exists( $filename ) || is_writeable( $filename ) ) {
if (!file_exists( $filename ) ) {
$markerdata = '';
} else {
$markerdata = explode( "\n", implode( '', file( $filename ) ) );
}
$f = fopen( $filename, 'w' );
$foundit = false;
if ( $markerdata ) {
$state = true;
foreach ( $markerdata as $n => $markerline ) {
if (strpos($markerline, '# BEGIN ' . $marker) !== false)
$state = false;
if ( $state ) {
if ( $n + 1 < count( $markerdata ) )
fwrite( $f, "{$markerline}\n" );
else
fwrite( $f, "{$markerline}" );
}
if (strpos($markerline, '# END ' . $marker) !== false) {
fwrite( $f, "# BEGIN {$marker}\n" );
if ( is_array( $insertion ))
foreach ( $insertion as $insertline )
fwrite( $f, "{$insertline}\n" );
fwrite( $f, "# END {$marker}\n" );
$state = true;
$foundit = true;
}
}
}
if (!$foundit) {
fwrite( $f, "\n# BEGIN {$marker}\n" );
foreach ( $insertion as $insertline )
fwrite( $f, "{$insertline}\n" );
fwrite( $f, "# END {$marker}\n" );
}
fclose( $f );
return true;
} else {
return false;
}
}
/**
* Updates the htaccess file with the current rules if it is writable.
*
* Always writes to the file if it exists and is writable to ensure that we
* blank out old rules.
*
* @since unknown
*/
function save_mod_rewrite_rules() {
global $wp_rewrite;
$home_path = get_home_path();
$htaccess_file = $home_path.'.htaccess';
// If the file doesn't already exists check for write access to the directory and whether of not we have some rules.
// else check for write access to the file.
if ((!file_exists($htaccess_file) && is_writable($home_path) && $wp_rewrite->using_mod_rewrite_permalinks()) || is_writable($htaccess_file)) {
if ( got_mod_rewrite() ) {
$rules = explode( "\n", $wp_rewrite->mod_rewrite_rules() );
return insert_with_markers( $htaccess_file, 'WordPress', $rules );
}
}
return false;
}
/**
* {@internal Missing Short Description}}
*
* @since unknown
*
* @param unknown_type $file
*/
function update_recently_edited( $file ) {
$oldfiles = (array ) get_option( 'recently_edited' );
if ( $oldfiles ) {
$oldfiles = array_reverse( $oldfiles );
$oldfiles[] = $file;
$oldfiles = array_reverse( $oldfiles );
$oldfiles = array_unique( $oldfiles );
if ( 5 < count( $oldfiles ))
array_pop( $oldfiles );
} else {
$oldfiles[] = $file;
}
update_option( 'recently_edited', $oldfiles );
}
/**
* If siteurl or home changed, flush rewrite rules.
*
* @since unknown
*
* @param unknown_type $old_value
* @param unknown_type $value
*/
function update_home_siteurl( $old_value, $value ) {
global $wp_rewrite;
if ( defined( "WP_INSTALLING" ) )
return;
// If home changed, write rewrite rules to new location.
$wp_rewrite->flush_rules();
}
add_action( 'update_option_home', 'update_home_siteurl', 10, 2 );
add_action( 'update_option_siteurl', 'update_home_siteurl', 10, 2 );
/**
* {@internal Missing Short Description}}
*
* @since unknown
*
* @param unknown_type $url
* @return unknown
*/
function url_shorten( $url ) {
$short_url = str_replace( 'http://', '', stripslashes( $url ));
$short_url = str_replace( 'www.', '', $short_url );
if ('/' == substr( $short_url, -1 ))
$short_url = substr( $short_url, 0, -1 );
if ( strlen( $short_url ) > 35 )
$short_url = substr( $short_url, 0, 32 ).'...';
return $short_url;
}
/**
* {@internal Missing Short Description}}
*
* @since unknown
*
* @param unknown_type $vars
*/
function wp_reset_vars( $vars ) {
for ( $i=0; $i<count( $vars ); $i += 1 ) {
$var = $vars[$i];
global $$var;
if (!isset( $$var ) ) {
if ( empty( $_POST["$var"] ) ) {
if ( empty( $_GET["$var"] ) )
$$var = '';
else
$$var = $_GET["$var"];
} else {
$$var = $_POST["$var"];
}
}
}
}
/**
* {@internal Missing Short Description}}
*
* @since unknown
*
* @param unknown_type $message
*/
function show_message($message) {
if( is_wp_error($message) ){
if( $message->get_error_data() )
$message = $message->get_error_message() . ': ' . $message->get_error_data();
else
$message = $message->get_error_message();
}
echo "<p>$message</p>\n";
}
function wp_doc_link_parse( $content ) {
if ( !is_string( $content ) || empty( $content ) )
return array();
$tokens = token_get_all( $content );
$functions = array();
$ignore_functions = array();
for ( $t = 0, $count = count( $tokens ); $t < $count; $t++ ) {
if ( !is_array( $tokens[$t] ) ) continue;
if ( T_STRING == $tokens[$t][0] && ( '(' == $tokens[ $t + 1 ] || '(' == $tokens[ $t + 2 ] ) ) {
// If it's a function or class defined locally, there's not going to be any docs available
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] ) ) {
$ignore_functions[] = $tokens[$t][1];
}
// Add this to our stack of unique references
$functions[] = $tokens[$t][1];
}
}
$functions = array_unique( $functions );
sort( $functions );
$ignore_functions = apply_filters( 'documentation_ignore_functions', $ignore_functions );
$ignore_functions = array_unique( $ignore_functions );
$out = array();
foreach ( $functions as $function ) {
if ( in_array( $function, $ignore_functions ) )
continue;
$out[] = $function;
}
return $out;
}
/**
* Determines the language to use for CodePress syntax highlighting,
* based only on a filename.
*
* @since 2.8
*
* @param string $filename The name of the file to be highlighting
**/
function codepress_get_lang( $filename ) {
$codepress_supported_langs = apply_filters( 'codepress_supported_langs',
array( '.css' => 'css',
'.js' => 'javascript',
'.php' => 'php',
'.html' => 'html',
'.htm' => 'html',
'.txt' => 'text'
) );
$extension = substr( $filename, strrpos( $filename, '.' ) );
if ( $extension && array_key_exists( $extension, $codepress_supported_langs ) )
return $codepress_supported_langs[$extension];
return 'generic';
}
/**
* Adds Javascript required to make CodePress work on the theme/plugin editors.
*
* This code is attached to the action admin_print_footer_scripts.
*
* @since 2.8
**/
function codepress_footer_js() {
// Script-loader breaks CP's automatic path-detection, thus CodePress.path
// CP edits in an iframe, so we need to grab content back into normal form
?><script type="text/javascript">
/* <![CDATA[ */
var codepress_path = '<?php echo includes_url('js/codepress/'); ?>';
jQuery('#template').submit(function(){
if (jQuery('#newcontent_cp').length)
jQuery('#newcontent_cp').val(newcontent.getCode()).removeAttr('disabled');
});
/* ]]> */
</script>
<?php
}
/**
* Saves option for number of rows when listing posts, pages, comments, etc.
*
* @since 2.8
**/
function set_screen_options() {
if ( isset($_POST['wp_screen_options']) && is_array($_POST['wp_screen_options']) ) {
check_admin_referer( 'screen-options-nonce', 'screenoptionnonce' );
if ( !$user = wp_get_current_user() )
return;
$option = $_POST['wp_screen_options']['option'];
$value = $_POST['wp_screen_options']['value'];
if ( !preg_match( '/^[a-z_-]+$/', $option ) )
return;
$option = str_replace('-', '_', $option);
switch ( $option ) {
case 'edit_per_page':
case 'edit_pages_per_page':
case 'edit_comments_per_page':
case 'upload_per_page':
case 'categories_per_page':
case 'edit_tags_per_page':
case 'plugins_per_page':
$value = (int) $value;
if ( $value < 1 || $value > 999 )
return;
break;
default:
$value = apply_filters('set-screen-option', false, $option, $value);
if ( false === $value )
return;
break;
}
update_usermeta($user->ID, $option, $value);
wp_redirect( remove_query_arg( array('pagenum', 'apage', 'paged'), wp_get_referer() ) );
exit;
}
}