diff options
Diffstat (limited to 'system/core/Output.php')
| -rw-r--r-- | system/core/Output.php | 142 |
1 files changed, 71 insertions, 71 deletions
diff --git a/system/core/Output.php b/system/core/Output.php index ad9ffbabe..04e452d2c 100644 --- a/system/core/Output.php +++ b/system/core/Output.php @@ -30,8 +30,8 @@ class CI_Output { var $final_output; var $cache_expiration = 0; - var $headers = array(); - var $enable_profiler = FALSE; + var $headers = array(); + var $enable_profiler = FALSE; var $parse_exec_vars = TRUE; // whether or not to parse variables like {elapsed_time} and {memory_usage} var $_zlib_oc = FALSE; @@ -40,12 +40,12 @@ class CI_Output { function CI_Output() { $this->_zlib_oc = @ini_get('zlib.output_compression'); - + log_message('debug', "Output Class Initialized"); } - + // -------------------------------------------------------------------- - + /** * Get Output * @@ -53,14 +53,14 @@ class CI_Output { * * @access public * @return string - */ + */ function get_output() { return $this->final_output; } - + // -------------------------------------------------------------------- - + /** * Set Output * @@ -69,7 +69,7 @@ class CI_Output { * @access public * @param string * @return void - */ + */ function set_output($output) { $this->final_output = $output; @@ -85,7 +85,7 @@ class CI_Output { * @access public * @param string * @return void - */ + */ function append_output($output) { if ($this->final_output == '') @@ -111,52 +111,52 @@ class CI_Output { * @access public * @param string * @return void - */ + */ function set_header($header, $replace = TRUE) { // If zlib.output_compression is enabled it will compress the output, // but it will not modify the content-length header to compensate for // the reduction, causing the browser to hang waiting for more data. // We'll just skip content-length in those cases. - + if ($this->_zlib_oc && strncasecmp($header, 'content-length', 14) == 0) { return; } - + $this->headers[] = array($header, $replace); } // -------------------------------------------------------------------- - + /** * Set HTTP Status Header * moved to Common procedural functions in 1.7.2 - * + * * @access public - * @param int the status code - * @param string + * @param int the status code + * @param string * @return void - */ + */ function set_status_header($code = 200, $text = '') { set_status_header($code, $text); } - + // -------------------------------------------------------------------- - + /** * Enable/disable Profiler * * @access public * @param bool * @return void - */ + */ function enable_profiler($val = TRUE) { $this->enable_profiler = (is_bool($val)) ? $val : TRUE; } - + // -------------------------------------------------------------------- /** @@ -177,21 +177,21 @@ class CI_Output { } // -------------------------------------------------------------------- - + /** * Set Cache * * @access public * @param integer * @return void - */ + */ function cache($time) { $this->cache_expiration = ( ! is_numeric($time)) ? 0 : $time; } - + // -------------------------------------------------------------------- - + /** * Display Output * @@ -205,9 +205,9 @@ class CI_Output { * * @access public * @return mixed - */ + */ function _display($output = '') - { + { // Note: We use globals because we can't use $CI =& get_instance() // since this function is sometimes called by the caching mechanism, // which happens before the CI super object is available. @@ -220,15 +220,15 @@ class CI_Output { } // -------------------------------------------------------------------- - + // Set the output data if ($output == '') { $output =& $this->final_output; } - + // -------------------------------------------------------------------- - + // Do we need to write a cache file? Only if the controller does not have its // own _output() method and we are not dealing with a cache file, which we // can determine by the existence of the $CI object above @@ -236,24 +236,24 @@ class CI_Output { { $this->_write_cache($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'); + + $elapsed = $BM->elapsed_time('total_execution_time_start', 'total_execution_time_end'); if ($this->parse_exec_vars === TRUE) { $memory = ( ! function_exists('memory_get_usage')) ? '0' : round(memory_get_usage()/1024/1024, 2).'MB'; - + $output = str_replace('{elapsed_time}', $elapsed, $output); $output = str_replace('{memory_usage}', $memory, $output); } // -------------------------------------------------------------------- - + // Is compression requested? if ($CFG->item('compress_output') === TRUE && $this->_zlib_oc == FALSE) { @@ -267,7 +267,7 @@ class CI_Output { } // -------------------------------------------------------------------- - + // Are there any server headers to send? if (count($this->headers) > 0) { @@ -275,10 +275,10 @@ class CI_Output { { @header($header[0], $header[1]); } - } + } // -------------------------------------------------------------------- - + // Does the $CI object exist? // If not we know we are dealing with a cache file so we'll // simply echo out the data and exit. @@ -289,19 +289,19 @@ class CI_Output { log_message('debug', "Total execution time: ".$elapsed); return TRUE; } - + // -------------------------------------------------------------------- - + // 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'); - + $CI->load->library('profiler'); + if ( ! empty($this->_profiler_sections)) { $CI->profiler->set_sections($this->_profiler_sections); - } + } // If the output data contains closing </body> and </html> tags // we will remove them and add them back after we insert the profile data @@ -316,7 +316,7 @@ class CI_Output { $output .= $CI->profiler->run(); } } - + // -------------------------------------------------------------------- // Does the controller contain a function named _output()? @@ -329,36 +329,36 @@ class CI_Output { { echo $output; // Send it to the browser! } - + log_message('debug', "Final output sent to browser"); - log_message('debug', "Total execution time: ".$elapsed); + log_message('debug', "Total execution time: ".$elapsed); } - + // -------------------------------------------------------------------- - + /** * Write a Cache File * * @access public * @return void - */ + */ function _write_cache($output) { - $CI =& get_instance(); + $CI =& get_instance(); $path = $CI->config->item('cache_path'); - + $cache_path = ($path == '') ? BASEPATH.'cache/' : $path; - + if ( ! is_dir($cache_path) OR ! is_really_writable($cache_path)) { log_message('error', "Unable to write cache file: ".$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)) @@ -366,9 +366,9 @@ class CI_Output { 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); @@ -386,51 +386,51 @@ class CI_Output { } // -------------------------------------------------------------------- - + /** * 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'); - + // 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 + + // 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--->', '', $match['1']))) { @@ -438,13 +438,13 @@ class CI_Output { { @unlink($filepath); log_message('debug', "Cache file has expired. File deleted"); - return FALSE; + return FALSE; } } // Display the cache $this->_display(str_replace($match['0'], '', $cache)); - log_message('debug', "Cache file is current. Sending it to browser."); + log_message('debug', "Cache file is current. Sending it to browser."); return TRUE; } |