-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');\r
-/**\r
- * CodeIgniter\r
- *\r
- * An open source application development framework for PHP 4.3.2 or newer\r
- *\r
- * @package CodeIgniter\r
- * @author ExpressionEngine Dev Team\r
- * @copyright Copyright (c) 2008, EllisLab, Inc.\r
- * @license http://codeigniter.com/user_guide/license.html\r
- * @link http://codeigniter.com\r
- * @since Version 1.0\r
- * @filesource\r
- */\r
-\r
-// ------------------------------------------------------------------------\r
-\r
-/**\r
- * Output Class\r
- *\r
- * Responsible for sending final output to browser\r
- *\r
- * @package CodeIgniter\r
- * @subpackage Libraries\r
- * @category Output\r
- * @author ExpressionEngine Dev Team\r
- * @link http://codeigniter.com/user_guide/libraries/output.html\r
- */\r
-class CI_Output {\r
-\r
- var $final_output;\r
- var $cache_expiration = 0;\r
- var $headers = array();\r
- var $enable_profiler = FALSE;\r
-\r
-\r
- function CI_Output()\r
- {\r
- log_message('debug', "Output Class Initialized");\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Get Output\r
- *\r
- * Returns the current output string\r
- *\r
- * @access public\r
- * @return string\r
- */ \r
- function get_output()\r
- {\r
- return $this->final_output;\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Set Output\r
- *\r
- * Sets the output string\r
- *\r
- * @access public\r
- * @param string\r
- * @return void\r
- */ \r
- function set_output($output)\r
- {\r
- $this->final_output = $output;\r
- }\r
-\r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Append Output\r
- *\r
- * Appends data onto the output string\r
- *\r
- * @access public\r
- * @param string\r
- * @return void\r
- */ \r
- function append_output($output)\r
- {\r
- if ($this->final_output == '')\r
- {\r
- $this->final_output = $output;\r
- }\r
- else\r
- {\r
- $this->final_output .= $output;\r
- }\r
- }\r
-\r
- // --------------------------------------------------------------------\r
-\r
- /**\r
- * Set Header\r
- *\r
- * Lets you set a server header which will be outputted with the final display.\r
- *\r
- * Note: If a file is cached, headers will not be sent. We need to figure out\r
- * how to permit header data to be saved with the cache data...\r
- *\r
- * @access public\r
- * @param string\r
- * @return void\r
- */ \r
- function set_header($header, $replace = TRUE)\r
- {\r
- $this->headers[] = array($header, $replace);\r
- }\r
-\r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Set HTTP Status Header\r
- *\r
- * @access public\r
- * @param int the status code\r
- * @param string \r
- * @return void\r
- */ \r
- function set_status_header($code = '200', $text = '')\r
- {\r
- $stati = array(\r
- '200' => 'OK',\r
- '201' => 'Created',\r
- '202' => 'Accepted',\r
- '203' => 'Non-Authoritative Information',\r
- '204' => 'No Content',\r
- '205' => 'Reset Content',\r
- '206' => 'Partial Content',\r
- \r
- '300' => 'Multiple Choices',\r
- '301' => 'Moved Permanently',\r
- '302' => 'Found',\r
- '304' => 'Not Modified',\r
- '305' => 'Use Proxy',\r
- '307' => 'Temporary Redirect',\r
- \r
- '400' => 'Bad Request',\r
- '401' => 'Unauthorized',\r
- '403' => 'Forbidden',\r
- '404' => 'Not Found',\r
- '405' => 'Method Not Allowed',\r
- '406' => 'Not Acceptable',\r
- '407' => 'Proxy Authentication Required',\r
- '408' => 'Request Timeout',\r
- '409' => 'Conflict',\r
- '410' => 'Gone',\r
- '411' => 'Length Required',\r
- '412' => 'Precondition Failed',\r
- '413' => 'Request Entity Too Large',\r
- '414' => 'Request-URI Too Long',\r
- '415' => 'Unsupported Media Type',\r
- '416' => 'Requested Range Not Satisfiable',\r
- '417' => 'Expectation Failed',\r
- \r
- '500' => 'Internal Server Error',\r
- '501' => 'Not Implemented',\r
- '502' => 'Bad Gateway',\r
- '503' => 'Service Unavailable',\r
- '504' => 'Gateway Timeout',\r
- '505' => 'HTTP Version Not Supported'\r
- );\r
-\r
- if ($code == '' OR ! is_numeric($code))\r
- {\r
- show_error('Status codes must be numeric');\r
- }\r
-\r
- if (isset($stati[$code]) AND $text == '')\r
- { \r
- $text = $stati[$code];\r
- }\r
- \r
- if ($text == '')\r
- {\r
- show_error('No status text available. Please check your status code number or supply your own message text.');\r
- }\r
- \r
- $server_protocol = (isset($_SERVER['SERVER_PROTOCOL'])) ? $_SERVER['SERVER_PROTOCOL'] : FALSE;\r
- \r
- if (substr(php_sapi_name(), 0, 3) == 'cgi')\r
- {\r
- header("Status: {$code} {$text}", TRUE);\r
- }\r
- elseif ($server_protocol == 'HTTP/1.1' OR $server_protocol == 'HTTP/1.0')\r
- {\r
- header($server_protocol." {$code} {$text}", TRUE, $code);\r
- }\r
- else\r
- {\r
- header("HTTP/1.1 {$code} {$text}", TRUE, $code);\r
- }\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Enable/disable Profiler\r
- *\r
- * @access public\r
- * @param bool\r
- * @return void\r
- */ \r
- function enable_profiler($val = TRUE)\r
- {\r
- $this->enable_profiler = (is_bool($val)) ? $val : TRUE;\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Set Cache\r
- *\r
- * @access public\r
- * @param integer\r
- * @return void\r
- */ \r
- function cache($time)\r
- {\r
- $this->cache_expiration = ( ! is_numeric($time)) ? 0 : $time;\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Display Output\r
- *\r
- * All "view" data is automatically put into this variable by the controller class:\r
- *\r
- * $this->final_output\r
- *\r
- * This function sends the finalized output data to the browser along\r
- * with any server headers and profile data. It also stops the\r
- * benchmark timer so the page rendering speed and memory usage can be shown.\r
- *\r
- * @access public\r
- * @return mixed\r
- */ \r
- function _display($output = '')\r
- { \r
- // Note: We use globals because we can't use $CI =& get_instance()\r
- // since this function is sometimes called by the caching mechanism,\r
- // which happens before the CI super object is available.\r
- global $BM, $CFG;\r
- \r
- // --------------------------------------------------------------------\r
- \r
- // Set the output data\r
- if ($output == '')\r
- {\r
- $output =& $this->final_output;\r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- // Do we need to write a cache file?\r
- if ($this->cache_expiration > 0)\r
- {\r
- $this->_write_cache($output);\r
- }\r
- \r
- // --------------------------------------------------------------------\r
-\r
- // Parse out the elapsed time and memory usage,\r
- // then swap the pseudo-variables with the data\r
-\r
- $elapsed = $BM->elapsed_time('total_execution_time_start', 'total_execution_time_end'); \r
- $output = str_replace('{elapsed_time}', $elapsed, $output);\r
- \r
- $memory = ( ! function_exists('memory_get_usage')) ? '0' : round(memory_get_usage()/1024/1024, 2).'MB';\r
- $output = str_replace('{memory_usage}', $memory, $output); \r
-\r
- // --------------------------------------------------------------------\r
- \r
- // Is compression requested?\r
- if ($CFG->item('compress_output') === TRUE)\r
- {\r
- if (extension_loaded('zlib'))\r
- {\r
- if (isset($_SERVER['HTTP_ACCEPT_ENCODING']) AND strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip') !== FALSE)\r
- {\r
- ob_start('ob_gzhandler');\r
- }\r
- }\r
- }\r
-\r
- // --------------------------------------------------------------------\r
- \r
- // Are there any server headers to send?\r
- if (count($this->headers) > 0)\r
- {\r
- foreach ($this->headers as $header)\r
- {\r
- @header($header[0], $header[1]);\r
- }\r
- } \r
-\r
- // --------------------------------------------------------------------\r
- \r
- // Does the get_instance() function exist?\r
- // If not we know we are dealing with a cache file so we'll\r
- // simply echo out the data and exit.\r
- if ( ! function_exists('get_instance'))\r
- {\r
- echo $output;\r
- log_message('debug', "Final output sent to browser");\r
- log_message('debug', "Total execution time: ".$elapsed);\r
- return TRUE;\r
- }\r
- \r
- // --------------------------------------------------------------------\r
-\r
- // Grab the super object. We'll need it in a moment...\r
- $CI =& get_instance();\r
- \r
- // Do we need to generate profile data?\r
- // If so, load the Profile class and run it.\r
- if ($this->enable_profiler == TRUE)\r
- {\r
- $CI->load->library('profiler'); \r
- \r
- // If the output data contains closing </body> and </html> tags\r
- // we will remove them and add them back after we insert the profile data\r
- if (preg_match("|</body>.*?</html>|is", $output))\r
- {\r
- $output = preg_replace("|</body>.*?</html>|is", '', $output);\r
- $output .= $CI->profiler->run();\r
- $output .= '</body></html>';\r
- }\r
- else\r
- {\r
- $output .= $CI->profiler->run();\r
- }\r
- }\r
- \r
- // --------------------------------------------------------------------\r
-\r
- // Does the controller contain a function named _output()?\r
- // If so send the output there. Otherwise, echo it.\r
- if (method_exists($CI, '_output'))\r
- {\r
- $CI->_output($output);\r
- }\r
- else\r
- {\r
- echo $output; // Send it to the browser!\r
- }\r
- \r
- log_message('debug', "Final output sent to browser");\r
- log_message('debug', "Total execution time: ".$elapsed); \r
- }\r
- \r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Write a Cache File\r
- *\r
- * @access public\r
- * @return void\r
- */ \r
- function _write_cache($output)\r
- {\r
- $CI =& get_instance(); \r
- $path = $CI->config->item('cache_path');\r
- \r
- $cache_path = ($path == '') ? BASEPATH.'cache/' : $path;\r
- \r
- if ( ! is_dir($cache_path) OR ! is_really_writable($cache_path))\r
- {\r
- return;\r
- }\r
- \r
- $uri = $CI->config->item('base_url').\r
- $CI->config->item('index_page').\r
- $CI->uri->uri_string();\r
- \r
- $cache_path .= md5($uri);\r
-\r
- if ( ! $fp = @fopen($cache_path, FOPEN_WRITE_CREATE_DESTRUCTIVE))\r
- {\r
- log_message('error', "Unable to write cache file: ".$cache_path);\r
- return;\r
- }\r
- \r
- $expire = time() + ($this->cache_expiration * 60);\r
- \r
- if (flock($fp, LOCK_EX))\r
- {\r
- fwrite($fp, $expire.'TS--->'.$output);\r
- flock($fp, LOCK_UN);\r
- }\r
- else\r
- {\r
- log_message('error', "Unable to secure a file lock for file at: ".$cache_path);\r
- return;\r
- }\r
- fclose($fp);\r
- @chmod($cache_path, DIR_WRITE_MODE);\r
-\r
- log_message('debug', "Cache file written: ".$cache_path);\r
- }\r
-\r
- // --------------------------------------------------------------------\r
- \r
- /**\r
- * Update/serve a cached file\r
- *\r
- * @access public\r
- * @return void\r
- */ \r
- function _display_cache(&$CFG, &$URI)\r
- {\r
- $cache_path = ($CFG->item('cache_path') == '') ? BASEPATH.'cache/' : $CFG->item('cache_path');\r
- \r
- if ( ! is_dir($cache_path) OR ! is_really_writable($cache_path))\r
- {\r
- return FALSE;\r
- }\r
- \r
- // Build the file path. The file name is an MD5 hash of the full URI\r
- $uri = $CFG->item('base_url').\r
- $CFG->item('index_page').\r
- $URI->uri_string;\r
- \r
- $filepath = $cache_path.md5($uri);\r
- \r
- if ( ! @file_exists($filepath))\r
- {\r
- return FALSE;\r
- }\r
- \r
- if ( ! $fp = @fopen($filepath, FOPEN_READ))\r
- {\r
- return FALSE;\r
- }\r
- \r
- flock($fp, LOCK_SH);\r
- \r
- $cache = '';\r
- if (filesize($filepath) > 0)\r
- {\r
- $cache = fread($fp, filesize($filepath));\r
- }\r
- \r
- flock($fp, LOCK_UN);\r
- fclose($fp);\r
- \r
- // Strip out the embedded timestamp \r
- if ( ! preg_match("/(\d+TS--->)/", $cache, $match))\r
- {\r
- return FALSE;\r
- }\r
- \r
- // Has the file expired? If so we'll delete it.\r
- if (time() >= trim(str_replace('TS--->', '', $match['1'])))\r
- { \r
- @unlink($filepath);\r
- log_message('debug', "Cache file has expired. File deleted");\r
- return FALSE;\r
- }\r
-\r
- // Display the cache\r
- $this->_display(str_replace($match['0'], '', $cache));\r
- log_message('debug', "Cache file is current. Sending it to browser."); \r
- return TRUE;\r
- }\r
-\r
-\r
-}\r
-// END Output Class\r
-\r
-/* End of file Output.php */\r
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package CodeIgniter
+ * @author ExpressionEngine Dev Team
+ * @copyright Copyright (c) 2008, EllisLab, Inc.
+ * @license http://codeigniter.com/user_guide/license.html
+ * @link http://codeigniter.com
+ * @since Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Output Class
+ *
+ * Responsible for sending final output to browser
+ *
+ * @package CodeIgniter
+ * @subpackage Libraries
+ * @category Output
+ * @author ExpressionEngine Dev Team
+ * @link http://codeigniter.com/user_guide/libraries/output.html
+ */
+class CI_Output {
+
+ var $final_output;
+ var $cache_expiration = 0;
+ var $headers = array();
+ var $enable_profiler = FALSE;
+
+
+ function CI_Output()
+ {
+ log_message('debug', "Output Class Initialized");
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Get Output
+ *
+ * Returns the current output string
+ *
+ * @access public
+ * @return string
+ */
+ function get_output()
+ {
+ return $this->final_output;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Set Output
+ *
+ * Sets the output string
+ *
+ * @access public
+ * @param string
+ * @return void
+ */
+ function set_output($output)
+ {
+ $this->final_output = $output;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Append Output
+ *
+ * Appends data onto the output string
+ *
+ * @access public
+ * @param string
+ * @return void
+ */
+ function append_output($output)
+ {
+ if ($this->final_output == '')
+ {
+ $this->final_output = $output;
+ }
+ else
+ {
+ $this->final_output .= $output;
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Set Header
+ *
+ * Lets you set a server header which will be outputted with the final display.
+ *
+ * Note: If a file is cached, headers will not be sent. We need to figure out
+ * how to permit header data to be saved with the cache data...
+ *
+ * @access public
+ * @param string
+ * @return void
+ */
+ function set_header($header, $replace = TRUE)
+ {
+ $this->headers[] = array($header, $replace);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Set HTTP Status Header
+ *
+ * @access public
+ * @param int the status code
+ * @param string
+ * @return void
+ */
+ function set_status_header($code = '200', $text = '')
+ {
+ $stati = array(
+ '200' => 'OK',
+ '201' => 'Created',
+ '202' => 'Accepted',
+ '203' => 'Non-Authoritative Information',
+ '204' => 'No Content',
+ '205' => 'Reset Content',
+ '206' => 'Partial Content',
+
+ '300' => 'Multiple Choices',
+ '301' => 'Moved Permanently',
+ '302' => 'Found',
+ '304' => 'Not Modified',
+ '305' => 'Use Proxy',
+ '307' => 'Temporary Redirect',
+
+ '400' => 'Bad Request',
+ '401' => 'Unauthorized',
+ '403' => 'Forbidden',
+ '404' => 'Not Found',
+ '405' => 'Method Not Allowed',
+ '406' => 'Not Acceptable',
+ '407' => 'Proxy Authentication Required',
+ '408' => 'Request Timeout',
+ '409' => 'Conflict',
+ '410' => 'Gone',
+ '411' => 'Length Required',
+ '412' => 'Precondition Failed',
+ '413' => 'Request Entity Too Large',
+ '414' => 'Request-URI Too Long',
+ '415' => 'Unsupported Media Type',
+ '416' => 'Requested Range Not Satisfiable',
+ '417' => 'Expectation Failed',
+
+ '500' => 'Internal Server Error',
+ '501' => 'Not Implemented',
+ '502' => 'Bad Gateway',
+ '503' => 'Service Unavailable',
+ '504' => 'Gateway Timeout',
+ '505' => 'HTTP Version Not Supported'
+ );
+
+ if ($code == '' OR ! is_numeric($code))
+ {
+ show_error('Status codes must be numeric');
+ }
+
+ if (isset($stati[$code]) AND $text == '')
+ {
+ $text = $stati[$code];
+ }
+
+ if ($text == '')
+ {
+ show_error('No status text available. Please check your status code number or supply your own message text.');
+ }
+
+ $server_protocol = (isset($_SERVER['SERVER_PROTOCOL'])) ? $_SERVER['SERVER_PROTOCOL'] : FALSE;
+
+ if (substr(php_sapi_name(), 0, 3) == 'cgi')
+ {
+ header("Status: {$code} {$text}", TRUE);
+ }
+ elseif ($server_protocol == 'HTTP/1.1' OR $server_protocol == 'HTTP/1.0')
+ {
+ header($server_protocol." {$code} {$text}", TRUE, $code);
+ }
+ else
+ {
+ header("HTTP/1.1 {$code} {$text}", TRUE, $code);
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Enable/disable Profiler
+ *
+ * @access public
+ * @param bool
+ * @return void
+ */
+ function enable_profiler($val = TRUE)
+ {
+ $this->enable_profiler = (is_bool($val)) ? $val : TRUE;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Set Cache
+ *
+ * @access public
+ * @param integer
+ * @return void
+ */
+ function cache($time)
+ {
+ $this->cache_expiration = ( ! is_numeric($time)) ? 0 : $time;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Display Output
+ *
+ * All "view" data is automatically put into this variable by the controller class:
+ *
+ * $this->final_output
+ *
+ * This function sends the finalized output data to the browser along
+ * with any server headers and profile data. It also stops the
+ * benchmark timer so the page rendering speed and memory usage can be shown.
+ *
+ * @access public
+ * @return mixed
+ */
+ function _display($output = '')
+ {
+ // Note: We use globals because we can't use $CI =& get_instance()
+ // since this function is sometimes called by the caching mechanism,
+ // which happens before the CI super object is available.
+ global $BM, $CFG;
+
+ // --------------------------------------------------------------------
+
+ // Set the output data
+ if ($output == '')
+ {
+ $output =& $this->final_output;
+ }
+
+ // --------------------------------------------------------------------
+
+ // Do we need to write a cache file?
+ if ($this->cache_expiration > 0)
+ {
+ $this->_write_cache($output);
+ }
+
+ // --------------------------------------------------------------------
+
+ // Parse out the elapsed time and memory usage,
+ // then swap the pseudo-variables with the data
+
+ $elapsed = $BM->elapsed_time('total_execution_time_start', 'total_execution_time_end');
+ $output = str_replace('{elapsed_time}', $elapsed, $output);
+
+ $memory = ( ! function_exists('memory_get_usage')) ? '0' : round(memory_get_usage()/1024/1024, 2).'MB';
+ $output = str_replace('{memory_usage}', $memory, $output);
+
+ // --------------------------------------------------------------------
+
+ // Is compression requested?
+ if ($CFG->item('compress_output') === TRUE)
+ {
+ if (extension_loaded('zlib'))
+ {
+ if (isset($_SERVER['HTTP_ACCEPT_ENCODING']) AND strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip') !== FALSE)
+ {
+ ob_start('ob_gzhandler');
+ }
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ // Are there any server headers to send?
+ if (count($this->headers) > 0)
+ {
+ foreach ($this->headers as $header)
+ {
+ @header($header[0], $header[1]);
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ // Does the get_instance() function exist?
+ // If not we know we are dealing with a cache file so we'll
+ // simply echo out the data and exit.
+ if ( ! function_exists('get_instance'))
+ {
+ echo $output;
+ log_message('debug', "Final output sent to browser");
+ log_message('debug', "Total execution time: ".$elapsed);
+ return TRUE;
+ }
+
+ // --------------------------------------------------------------------
+
+ // Grab the super object. We'll need it in a moment...
+ $CI =& get_instance();
+
+ // Do we need to generate profile data?
+ // If so, load the Profile class and run it.
+ if ($this->enable_profiler == TRUE)
+ {
+ $CI->load->library('profiler');
+
+ // If the output data contains closing </body> and </html> tags
+ // we will remove them and add them back after we insert the profile data
+ if (preg_match("|</body>.*?</html>|is", $output))
+ {
+ $output = preg_replace("|</body>.*?</html>|is", '', $output);
+ $output .= $CI->profiler->run();
+ $output .= '</body></html>';
+ }
+ else
+ {
+ $output .= $CI->profiler->run();
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ // Does the controller contain a function named _output()?
+ // If so send the output there. Otherwise, echo it.
+ if (method_exists($CI, '_output'))
+ {
+ $CI->_output($output);
+ }
+ else
+ {
+ echo $output; // Send it to the browser!
+ }
+
+ log_message('debug', "Final output sent to browser");
+ log_message('debug', "Total execution time: ".$elapsed);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Write a Cache File
+ *
+ * @access public
+ * @return void
+ */
+ function _write_cache($output)
+ {
+ $CI =& get_instance();
+ $path = $CI->config->item('cache_path');
+
+ $cache_path = ($path == '') ? BASEPATH.'cache/' : $path;
+
+ if ( ! is_dir($cache_path) OR ! is_really_writable($cache_path))
+ {
+ return;
+ }
+
+ $uri = $CI->config->item('base_url').
+ $CI->config->item('index_page').
+ $CI->uri->uri_string();
+
+ $cache_path .= md5($uri);
+
+ if ( ! $fp = @fopen($cache_path, FOPEN_WRITE_CREATE_DESTRUCTIVE))
+ {
+ log_message('error', "Unable to write cache file: ".$cache_path);
+ return;
+ }
+
+ $expire = time() + ($this->cache_expiration * 60);
+
+ if (flock($fp, LOCK_EX))
+ {
+ fwrite($fp, $expire.'TS--->'.$output);
+ flock($fp, LOCK_UN);
+ }
+ else
+ {
+ log_message('error', "Unable to secure a file lock for file at: ".$cache_path);
+ return;
+ }
+ fclose($fp);
+ @chmod($cache_path, DIR_WRITE_MODE);
+
+ log_message('debug', "Cache file written: ".$cache_path);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Update/serve a cached file
+ *
+ * @access public
+ * @return void
+ */
+ function _display_cache(&$CFG, &$URI)
+ {
+ $cache_path = ($CFG->item('cache_path') == '') ? BASEPATH.'cache/' : $CFG->item('cache_path');
+
+ if ( ! is_dir($cache_path) OR ! is_really_writable($cache_path))
+ {
+ return FALSE;
+ }
+
+ // Build the file path. The file name is an MD5 hash of the full URI
+ $uri = $CFG->item('base_url').
+ $CFG->item('index_page').
+ $URI->uri_string;
+
+ $filepath = $cache_path.md5($uri);
+
+ if ( ! @file_exists($filepath))
+ {
+ return FALSE;
+ }
+
+ if ( ! $fp = @fopen($filepath, FOPEN_READ))
+ {
+ return FALSE;
+ }
+
+ flock($fp, LOCK_SH);
+
+ $cache = '';
+ if (filesize($filepath) > 0)
+ {
+ $cache = fread($fp, filesize($filepath));
+ }
+
+ flock($fp, LOCK_UN);
+ fclose($fp);
+
+ // Strip out the embedded timestamp
+ if ( ! preg_match("/(\d+TS--->)/", $cache, $match))
+ {
+ return FALSE;
+ }
+
+ // Has the file expired? If so we'll delete it.
+ if (time() >= trim(str_replace('TS--->', '', $match['1'])))
+ {
+ @unlink($filepath);
+ log_message('debug', "Cache file has expired. File deleted");
+ return FALSE;
+ }
+
+ // Display the cache
+ $this->_display(str_replace($match['0'], '', $cache));
+ log_message('debug', "Cache file is current. Sending it to browser.");
+ return TRUE;
+ }
+
+
+}
+// END Output Class
+
+/* End of file Output.php */
/* Location: ./system/libraries/Output.php */
\ No newline at end of file
git://git.onelab.eu / www-register-wizard.git / blobdiff