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function wp_handle_upload(&$file, $overrides = false) {
	// The default error handler.
	if (! function_exists('wp_handle_upload_error') ) {
		function wp_handle_upload_error(&$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';
 
	// $_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."));
 
	// Accepted MIME types are set here as PCRE. Override with $override['mimes'].
	$mimes = apply_filters('upload_mimes', array (
		'jpg|jpeg|jpe' => 'image/jpeg',
		'gif' => 'image/gif',
		'png' => 'image/png',
		'bmp' => 'image/bmp',
		'tif|tiff' => 'image/tiff',
		'ico' => 'image/x-icon',
		'asf|asx|wax|wmv|wmx' => 'video/asf',
		'avi' => 'video/avi',
		'mov|qt' => 'video/quicktime',
		'mpeg|mpg|mpe' => 'video/mpeg',
		'txt|c|cc|h' => 'text/plain',
		'rtx' => 'text/richtext',
		'css' => 'text/css',
		'htm|html' => 'text/html',
		'mp3|mp4' => 'audio/mpeg',
		'ra|ram' => 'audio/x-realaudio',
		'wav' => 'audio/wav',
		'ogg' => 'audio/ogg',
		'mid|midi' => 'audio/midi',
		'wma' => 'audio/wma',
		'rtf' => 'application/rtf',
		'js' => 'application/javascript',
		'pdf' => 'application/pdf',
		'doc' => 'application/msword',
		'pot|pps|ppt' => 'application/vnd.ms-powerpoint',
		'wri' => 'application/vnd.ms-write',
		'xla|xls|xlt|xlw' => 'application/vnd.ms-excel',
		'mdb' => 'application/vnd.ms-access',
		'mpp' => 'application/vnd.ms-project',
		'swf' => 'application/x-shockwave-flash',
		'class' => 'application/java',
		'tar' => 'application/x-tar',
		'zip' => 'application/zip',
		'gz|gzip' => 'application/x-gzip',
		'exe' => 'application/x-msdownload'
	));
 
	// 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;
 
	// 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.'));
 
	// 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.
	if ( $test_type ) {
		$type = false;
		$ext = false;
		foreach ($mimes as $ext_preg => $mime_match) {
			$ext_preg = '![^.]\.(' . $ext_preg . ')$!i';
			if ( preg_match($ext_preg, $file['name'], $ext_matches) ) {
				$type = $mime_match;
				$ext = $ext_matches[1];
			}
		}
 
		if ( !$type || !$ext )
			return $upload_error_handler($file, __('File type does not meet security guidelines. Try another.'));
	}
 
	// A writable uploads dir will pass this test. Again, there's no point overriding this one.
	if ( ! ( ( $uploads = wp_upload_dir() ) && false === $uploads['error'] ) )
		return $upload_error_handler($file, $uploads['error']);
 
	// Increment the file number until we have a unique file to save in $dir. Use $override['unique_filename_callback'] if supplied.
	if ( isset($unique_filename_callback) && function_exists($unique_filename_callback) ) {
		$filename = $unique_filename_callback($uploads['path'], $file['name']);
	} else {
		$number = '';
		$filename = str_replace('#', '_', $file['name']);
		$filename = str_replace(array('\\', "'"), '', $filename);
		if ( empty($ext) )
			$ext = '';
		else
			$ext = ".$ext";
		while ( file_exists($uploads['path'] . "/$filename") ) {
			if ( '' == "$number$ext" )
				$filename = $filename . ++$number . $ext;
			else
				$filename = str_replace("$number$ext", ++$number . $ext, $filename);
		}
	}
 
	// Move the file to the uploads dir
	$new_file = $uploads['path'] . "/$filename";
	if ( false === @ move_uploaded_file($file['tmp_name'], $new_file) )
		die(printf(__('The uploaded file could not be moved to %s.'), $file['path']));
 
	// Set correct file permissions
	$stat = stat(dirname($new_file));
	$perms = $stat['mode'] & 0000777;
	@ chmod($new_file, $perms);
 
	// Compute the URL
	$url = $uploads['url'] . "/$filename";
 
	return array('file' => $new_file, 'url' => $url, 'type' => $type);
}