diff options
Diffstat (limited to 'system/core/Output.php')
| -rw-r--r-- | system/core/Output.php | 80 |
1 files changed, 63 insertions, 17 deletions
diff --git a/system/core/Output.php b/system/core/Output.php index 76c1329d2..0887717d9 100644 --- a/system/core/Output.php +++ b/system/core/Output.php @@ -6,7 +6,7 @@ * * This content is released under the MIT License (MIT) * - * Copyright (c) 2014 - 2015, British Columbia Institute of Technology + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal @@ -28,10 +28,10 @@ * * @package CodeIgniter * @author EllisLab Dev Team - * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (http://ellislab.com/) - * @copyright Copyright (c) 2014 - 2015, British Columbia Institute of Technology (http://bcit.ca/) + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) * @license http://opensource.org/licenses/MIT MIT License - * @link http://codeigniter.com + * @link https://codeigniter.com * @since Version 1.0.0 * @filesource */ @@ -46,7 +46,7 @@ defined('BASEPATH') OR exit('No direct script access allowed'); * @subpackage Libraries * @category Output * @author EllisLab Dev Team - * @link http://codeigniter.com/user_guide/libraries/output.html + * @link https://codeigniter.com/user_guide/libraries/output.html */ class CI_Output { @@ -123,6 +123,13 @@ class CI_Output { public $parse_exec_vars = TRUE; /** + * mbstring.func_override flag + * + * @var bool + */ + protected static $func_override; + + /** * Class constructor * * Determines whether zLib output compression will be used. @@ -138,6 +145,8 @@ class CI_Output { && extension_loaded('zlib') ); + isset(self::$func_override) OR self::$func_override = (extension_loaded('mbstring') && ini_get('mbstring.func_override')); + // Get mime types for later $this->mimes =& get_mimes(); @@ -285,7 +294,7 @@ class CI_Output { /** * Get Header * - * @param string $header_name + * @param string $header * @return string */ public function get_header($header) @@ -302,11 +311,12 @@ class CI_Output { return NULL; } - for ($i = 0, $c = count($headers); $i < $c; $i++) + // Count backwards, in order to get the last matching header + for ($c = count($headers) - 1; $c > -1; $c--) { - if (strncasecmp($header, $headers[$i], $l = strlen($header)) === 0) + if (strncasecmp($header, $headers[$c], $l = self::strlen($header)) === 0) { - return trim(substr($headers[$i], $l+1)); + return trim(self::substr($headers[$c], $l+1)); } } @@ -377,7 +387,7 @@ class CI_Output { /** * Set Cache * - * @param int $time Cache expiration time in seconds + * @param int $time Cache expiration time in minutes * @return CI_Output */ public function cache($time) @@ -480,19 +490,19 @@ class CI_Output { if (isset($_SERVER['HTTP_ACCEPT_ENCODING']) && strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip') !== FALSE) { header('Content-Encoding: gzip'); - header('Content-Length: '.strlen($output)); + header('Content-Length: '.self::strlen($output)); } else { // User agent doesn't support gzip compression, // so we'll have to decompress our cache - $output = gzinflate(substr($output, 10, -8)); + $output = gzinflate(self::substr($output, 10, -8)); } } echo $output; log_message('info', 'Final output sent to browser'); - log_message('debug', 'Total execution time: '.$elapsed); + log_message('info', 'Total execution time: '.$elapsed); return; } @@ -529,7 +539,7 @@ class CI_Output { } log_message('info', 'Final output sent to browser'); - log_message('debug', 'Total execution time: '.$elapsed); + log_message('info', 'Total execution time: '.$elapsed); } // -------------------------------------------------------------------- @@ -601,9 +611,9 @@ class CI_Output { $output = $cache_info.'ENDCI--->'.$output; - for ($written = 0, $length = strlen($output); $written < $length; $written += $result) + for ($written = 0, $length = self::strlen($output); $written < $length; $written += $result) { - if (($result = fwrite($fp, substr($output, $written))) === FALSE) + if (($result = fwrite($fp, self::substr($output, $written))) === FALSE) { break; } @@ -711,7 +721,7 @@ class CI_Output { } // Display the cache - $this->_display(substr($cache, strlen($match[0]))); + $this->_display(self::substr($cache, self::strlen($match[0]))); log_message('debug', 'Cache file is current. Sending it to browser.'); return TRUE; } @@ -797,4 +807,40 @@ class CI_Output { } } + // -------------------------------------------------------------------- + + /** + * Byte-safe strlen() + * + * @param string $str + * @return int + */ + protected static function strlen($str) + { + return (self::$func_override) + ? mb_strlen($str, '8bit') + : strlen($str); + } + + // -------------------------------------------------------------------- + + /** + * Byte-safe substr() + * + * @param string $str + * @param int $start + * @param int $length + * @return string + */ + protected static function substr($str, $start, $length = NULL) + { + if (self::$func_override) + { + return mb_substr($str, $start, $length, '8bit'); + } + + return isset($length) + ? substr($str, $start, $length) + : substr($str, $start); + } } |