<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

/*
* fooStack, CIUnit for CodeIgniter
* Copyright (c) 2008-2009 Clemens Gruenberger
* Released under the MIT license, see:
* http://www.opensource.org/licenses/mit-license.php
*/

/*
* CodeIgniter source modified for fooStack / CIUnit
*
* If you use MY_Output, change the paraent class.
*/

class CIU_Output extends CI_Output {

	function __construct()
	{
		parent::__construct();
		$this->final_output = ''; //would be just set to 'null' in CI_Output
		$this->_ci_ob_level  = ob_get_level();
		$this->cookies = array();
	}

	/**
	* store cookie headers
	*/
	function set_cookie($arr)
	{
		if ( ! is_array($arr))
		{
			$arr = func_get_args();
		}
		$this->cookies[] = $arr;
	}

	/**
	* Add to instead of replace final output
	*/
	function add_output($str)
	{
		$this->final_output .= $str;
	}

	/**
	* Pop Output
	*
	* The final output the output class has stringed together is returned and truncated
	*
	*/
	function pop_output()
	{
		$output = $this->final_output;
		$this->final_output = "";
		return $output;
	}

	/**
	* set_no_cache_headers
	* called as a post controller construction hook
	* should count therefore as controller duty
	*/
	function set_no_cache_headers()
	{
		//somehow $this can't be used as headers are not set in that case
		$CI = get_instance();
		$CI->output->soft_set_header('Content-type: text/html; charset=utf-8');
		$CI->output->soft_set_header('Cache-Control: no-cache');
		log_message('debug', 'no cache headers set in output class');
	}

	// --------------------------------------------------------------------

	/**
	 * sets headers if not already set
	 */
	function soft_set_header($header)
	{
		$key = strtolower(array_shift(split(':', $header)));
		$add = true;
		foreach($this->headers as $hdr)
		{
			$h = split(':', $hdr);
			if(strtolower(array_shift($h)) == $key)
			{
				$add = false;
			}
		}
		$add ? ($this->headers[] = $header) : '';
	}

	/**
	 * get headers
	 */
	function get_headers()
	{
		return $this->headers;
	}

	/**
	* say
	* like normal echo but puts it in the output_buffer first, so we still can set headers
	* and post process it
	*/
	function say($str)
	{
		ob_start();
		echo $str;
		$this->ob_flush_clean();
	}

	/**
	* ob_flush_clean
	* flushes or cleans the buffer depending on if we are finished outputting or still on a nested level
	*/
	function ob_flush_clean()
	{
		$CI = get_instance();
		if (ob_get_level() > $this->_ci_ob_level + 1)
		{
			ob_end_flush();
		}
		else
		{
			$this->add_output(ob_get_contents());
			@ob_end_clean();
		}
	}

	/**
	 * 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;

		// Grab the super object if we can.
		if (class_exists('CI_Controller'))
		{
			$CI = get_instance();
		}

		// --------------------------------------------------------------------

		// 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 $CI object above
		if ($this->cache_expiration > 0 && isset($CI) && ! method_exists($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');

		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 && $this->_zlib_oc == FALSE)
		{
			if (extension_loaded('zlib'))
			{
				if (isset($_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], $header[1]);
				log_message('debug', "header '$header[0], $header[1]' set.");
			}
		}

		// --------------------------------------------------------------------

		// Are there any cookies to set?
		if (count($this->cookies) > 0)
		{
			foreach ($this->cookies as $cookie)
			{
				call_user_func_array ( 'setcookie' , $cookie );
				log_message('debug', "cookie '".join(', ', $cookie)."' set.");
			}
		}


		// --------------------------------------------------------------------

		// If not we know we are dealing with a cache file so we'll
		// simply echo out the data and exit.
		if ( ! isset($CI))
		{
			echo $output;
			log_message('debug', "Final output sent to browser");
			log_message('debug', "Total execution time: ".$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');

			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
			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);
	}

	// --------------------------------------------------------------------
}

/* End of file CIU_Output.php */
/* Location: ./application/third_party/CIUnit/core/CIU_Output.php */