<?php
/**
 * File contains all the administration image manipulation functions.
 *
 * @package WordPress
 * @subpackage Administration
 */

/** The descriptions for theme files. */
$wp_file_descriptions = array (
	'index.php' => __( 'Main Index Template' ),
	'style.css' => __( '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' ),
	'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' ));

/**
 * {@internal Missing Short Description}}
 *
 * @since unknown
 *
 * @return unknown
 */
function get_home_path() {
	$home = get_option( 'home' );
	if ( $home != '' && $home != get_option( 'siteurl' ) ) {
		$home_path = parse_url( $home );
		$home_path = $home_path['path'];
		$root = str_replace( $_SERVER["PHP_SELF"], '', $_SERVER["SCRIPT_FILENAME"] );
		$home_path = trailingslashit( $root.$home_path );
	} else {
		$home_path = ABSPATH;
	}

	return $home_path;
}

/**
 * {@internal Missing Short Description}}
 *
 * @since unknown
 *
 * @return unknown
 */
function get_temp_dir() {
	if ( defined('WP_TEMP_DIR') )
		return trailingslashit(WP_TEMP_DIR);

	$temp = WP_CONTENT_DIR . '/';
	if ( is_dir($temp) && is_writable($temp) )
		return $temp;

	if  ( function_exists('sys_get_temp_dir') )
		return trailingslashit(sys_get_temp_dir());

	return '/tmp/';
}

/**
 * {@internal Missing Short Description}}
 *
 * @since unknown
 *
 * @param unknown_type $filename
 * @param unknown_type $dir
 * @return unknown
 */
function wp_tempnam($filename = '', $dir = ''){
	if ( empty($dir) )
		$dir = get_temp_dir();
	$filename = basename($filename);
	if ( empty($filename) )
		$filename = time();

	$filename = $dir . wp_unique_filename($dir, $filename);
	touch($filename);
	return $filename;
}

/**
 * {@internal Missing Short Description}}
 *
 * @since unknown
 *
 * @param array $file Reference to a single element of $_FILES. Call the function once for each uploaded file.
 * @param array $overrides Optional. An associative array of names=>values to override default variables with extract( $overrides, EXTR_OVERWRITE ).
 * @return array On success, returns an associative array of file attributes. On failure, returns $overrides['upload_error_handler'](&$file, $message ) or array( 'error'=>$message ).
 */
function wp_handle_upload( &$file, $overrides = false, $time = null ) {
	// The default error handler.
	if (! function_exists( 'wp_handle_upload_error' ) ) {
		function wp_handle_upload_error( &$file, $message ) {
			return array( 'error'=>$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 define your own function and pass the name in $overrides['unique_filename_callback']
	$unique_filename_callback = null;

	// $_POST['action'] must be set and its value must equal $overrides['action'] or this:
	$action = 'wp_handle_upload';

	// Courtesy of php.net, the strings that describe the error indicated in $_FILES[{form field}]['error'].
	$upload_error_strings = array( false,
		__( "The uploaded file exceeds the <code>upload_max_filesize</code> directive in <code>php.ini</code>." ),
		__( "The uploaded file exceeds the <em>MAX_FILE_SIZE</em> directive that was specified in the HTML form." ),
		__( "The uploaded file was only partially uploaded." ),
		__( "No file was uploaded." ),
		'',
		__( "Missing a temporary folder." ),
		__( "Failed to write file to disk." ));

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

	// If you override this, you must provide $ext and $type!!!!
	$test_type = true;
	$mimes = false;

	// Install user overrides. Did we mention that this voids your warranty?
	if ( is_array( $overrides ) )
		extract( $overrides, EXTR_OVERWRITE );

	// A correct form post will pass this test.
	if ( $test_form && (!isset( $_POST['action'] ) || ($_POST['action'] != $action ) ) )
		return $upload_error_handler( $file, __( 'Invalid form submission.' ));

	// A successful upload will pass this test. It makes no sense to override this one.
	if ( $file['error'] > 0 )
		return $upload_error_handler( $file, $upload_error_strings[$file['error']] );

	// A non-empty file will pass this test.
	if ( $test_size && !($file['size'] > 0 ) )
		return $upload_error_handler( $file, __( 'File is empty. Please upload something more substantial. This error could also be caused by uploads being disabled in your php.ini.' ));

	// A properly uploaded file will pass this test. There should be no reason to override this one.
	if (! @ is_uploaded_file( $file['tmp_name'] ) )
		return $upload_error_handler( $file, __( 'Specified file failed upload test.' ));

	// A correct MIME type will pass this test. Override $mimes or use the upload_mimes filter.
	if ( $test_type ) {
		$wp_filetype = wp_check_filetype( $file['name'], $mimes );

		extract( $wp_filetype );

		if ( ( !$type || !$ext ) && !current_user_can( 'unfiltered_upload' ) )
			return $upload_error_handler( $file, __( 'File type does not meet security guidelines. Try another.' ));

		if ( !$ext )
			$ext = ltrim(strrchr($file['name'], '.'), '.');

		if ( !$type )
			$type = $file['type'];
	}

	// A writable uploads dir will pass this test. Again, there's no point overriding this one.
	if ( ! ( ( $uploads = wp_upload_dir($time) ) && false === $uploads['error'] ) )
		return $upload_error_handler( $file, $uploads['error'] );

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

	// Move the file to the uploads dir
	$new_file = $uploads['path'] . "/$filename";
	if ( false === @ move_uploaded_file( $file['tmp_name'], $new_file ) ) {
		return $upload_error_handler( $file, sprintf( __('The uploaded file could not be moved to %s.' ), $uploads['path'] ) );
	}

	// Set correct file permissions
	$stat = stat( dirname( $new_file ));
	$perms = $stat['mode'] & 0000666;
	@ chmod( $new_file, $perms );

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

	$return = apply_filters( 'wp_handle_upload', array( 'file' => $new_file, 'url' => $url, 'type' => $type ) );

	return $return;
}

?>