<?php

/**

 * Functions for reading, writing, modifying, and deleting files on the file system.

 * Includes functionality for theme-specific files as well as operations for uploading,

 * archiving, and rendering output when necessary.

 *

 * @package WordPress

 * @subpackage Administration

 */

/** The descriptions for theme files. */

$wp_file_descriptions = array(

	'index.php' => __( 'Main Index Template' ),

	'style.css' => __( 'Stylesheet' ),

	'editor-style.css' => __( 'Visual Editor Stylesheet' ),

	'editor-style-rtl.css' => __( 'Visual Editor RTL Stylesheet' ),

	'rtl.css' => __( 'RTL Stylesheet' ),

	'comments.php' => __( 'Comments' ),

	'comments-popup.php' => __( 'Popup Comments' ),

	'footer.php' => __( 'Footer' ),

	'header.php' => __( 'Header' ),

	'sidebar.php' => __( 'Sidebar' ),

	'archive.php' => __( 'Archives' ),

	'author.php' => __( 'Author Template' ),

	'tag.php' => __( 'Tag Template' ),

	'category.php' => __( 'Category Template' ),

	'page.php' => __( 'Page Template' ),

	'search.php' => __( 'Search Results' ),

	'searchform.php' => __( 'Search Form' ),

	'single.php' => __( 'Single Post' ),

	'404.php' => __( '404 Template' ),

	'link.php' => __( 'Links Template' ),

	'functions.php' => __( 'Theme Functions' ),

	'attachment.php' => __( 'Attachment Template' ),

	'image.php' => __('Image Attachment Template'),

	'video.php' => __('Video Attachment Template'),

	'audio.php' => __('Audio Attachment Template'),

	'application.php' => __('Application Attachment Template'),

	'my-hacks.php' => __( 'my-hacks.php (legacy hacks support)' ),

	'.htaccess' => __( '.htaccess (for rewrite rules )' ),

	// Deprecated files

	'wp-layout.css' => __( 'Stylesheet' ),

	'wp-comments.php' => __( 'Comments Template' ),

	'wp-comments-popup.php' => __( 'Popup Comments Template' ),

);

/**

 * Get the description for standard WordPress theme files and other various standard

 * WordPress files

 *

 * @since 1.5.0

 *

 * @uses $wp_file_descriptions

 * @param string $file Filesystem path or filename

 * @return string Description of file from $wp_file_descriptions or basename of $file if description doesn't exist

 */

function get_file_description( $file ) {

	global $wp_file_descriptions;

	if ( isset( $wp_file_descriptions[basename( $file )] ) ) {

		return $wp_file_descriptions[basename( $file )];

	}

	elseif ( file_exists( $file ) && is_file( $file ) ) {

		$template_data = implode( '', file( $file ) );

		if ( preg_match( '|Template Name:(.*)$|mi', $template_data, $name ))

			return sprintf( __( '%s Page Template' ), _cleanup_header_comment($name[1]) );

	}

	return trim( basename( $file ) );

}

/**

 * Get the absolute filesystem path to the root of the WordPress installation

 *

 * @since 1.5.0

 *

 * @return string Full filesystem path to the root of the WordPress installation

 */

function get_home_path() {

	if ( ! empty( $home ) && 0 !== strcasecmp( $home, $siteurl ) ) {

		$wp_path_rel_to_home = str_ireplace( $home, '', $siteurl ); /* $siteurl - $home */

		$pos = strripos( str_replace( '\\', '/', $_SERVER['SCRIPT_FILENAME'] ), trailingslashit( $wp_path_rel_to_home ) );

		$home_path = substr( $_SERVER['SCRIPT_FILENAME'], 0, $pos );

		$home_path = trailingslashit( $home_path );

	} else {

		$home_path = ABSPATH;

	}

	return str_replace( '\\', '/', $home_path );

}

/**

 * Returns a listing of all files in the specified folder and all subdirectories up to 100 levels deep.

 * The depth of the recursiveness can be controlled by the $levels param.

 *

 * @since 2.6.0

 *

 * @return bool|array False on failure, Else array of files

 */

function list_files( $folder = '', $levels = 100 ) {

	if ( empty($folder) )

		return false;

	if ( ! $levels )

		return false;

	$files = array();

	if ( $dir = @opendir( $folder ) ) {

		while (($file = readdir( $dir ) ) !== false ) {

			if ( in_array($file, array('.', '..') ) )

				continue;

			if ( is_dir( $folder . '/' . $file ) ) {

				$files2 = list_files( $folder . '/' . $file, $levels - 1);

				if ( $files2 )

					$files = array_merge($files, $files2 );

				else

					$files[] = $folder . '/' . $file . '/';

			} else {

				$files[] = $folder . '/' . $file;

			}

		}

	}

	@closedir( $dir );

	return $files;

}

/**

 * Returns a filename of a Temporary unique file.

 * Please note that the calling function must unlink() this itself.

 *

 * The filename is based off the passed parameter or defaults to the current unix timestamp,

 * while the directory can either be passed as well, or by leaving it blank, default to a writable temporary directory.

 *

 * @since 2.6.0

 *

 * @return string a writable filename

 */

		$dir = get_temp_dir();

		$filename = time();

}

/**

 * Make sure that the file that was requested to edit, is allowed to be edited

 *

 * Function will die if if you are not allowed to edit the file

 *

 * @since 1.5.0

 *

 * @param string $file file the users is attempting to edit

 * @param array $allowed_files Array of allowed files to edit, $file must match an entry exactly

 */

function validate_file_to_edit( $file, $allowed_files = '' ) {

	$code = validate_file( $file, $allowed_files );

	if (!$code )

		return $file;

	switch ( $code ) {

		case 1 :

		case 3 :

	}

}

/**

 * Handle PHP uploads in WordPress, sanitizing file names, checking extensions for mime type,

 * and moving the file to the appropriate directory within the uploads directory.

 *

 *

	// The default error handler.

	if ( ! function_exists( 'wp_handle_upload_error' ) ) {

		function wp_handle_upload_error( &$file, $message ) {

		}

	}

	// You may define your own function and pass the name in $overrides['upload_error_handler']

	$upload_error_handler = 'wp_handle_upload_error';

	// You may have had one or more 'wp_handle_upload_prefilter' functions error out the file. Handle that gracefully.

		return $upload_error_handler( $file, $file['error'] );

	// You may define your own function and pass the name in $overrides['unique_filename_callback']

	$unique_filename_callback = null;

	// All tests are on by default. Most can be turned off by $overrides[{test_name}] = false;

	// A correct form post will pass this test.

	// A successful upload will pass this test. It makes no sense to override this one.

	// A non-empty file will pass this test.

			$error_msg = __( 'File is empty. Please upload something more substantial.' );

			$error_msg = __( 'File is empty. Please upload something more substantial. This error could also be caused by uploads being disabled in your php.ini or by post_max_size being defined as smaller than upload_max_filesize in php.ini.' );

	}

	// A properly uploaded file will pass this test. There should be no reason to override this one.

	// A correct MIME type will pass this test. Override $mimes or use the upload_mimes filter.

	if ( $test_type ) {

		$wp_filetype = wp_check_filetype_and_ext( $file['tmp_name'], $file['name'], $mimes );

		// Check to see if wp_check_filetype_and_ext() determined the filename was incorrect

			$file['name'] = $proper_filename;

			$type = $file['type'];

	} else {

		$type = '';

	}

	$filename = wp_unique_filename( $uploads['path'], $file['name'], $unique_filename_callback );

	$new_file = $uploads['path'] . "/$filename";

			$error_path = str_replace( ABSPATH, '', $uploads['basedir'] ) . $uploads['subdir'];

			$error_path = basename( $uploads['basedir'] ) . $uploads['subdir'];

		return $upload_error_handler( $file, sprintf( __('The uploaded file could not be moved to %s.' ), $error_path ) );

	}

	$stat = stat( dirname( $new_file ));

	$perms = $stat['mode'] & 0000666;

	@ chmod( $new_file, $perms );

	$url = $uploads['url'] . "/$filename";

		delete_transient( 'dirsize_cache' );