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

/**

 * CodeIgniter

 *

 * An open source application development framework for PHP 5.1.6 or newer

 *

 * @package		CodeIgniter

 * @author		ExpressionEngine Dev Team

 * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.

 * @license		http://codeigniter.com/user_guide/license.html

 * @link		http://codeigniter.com

 * @since		Version 1.0

 * @filesource

 */



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



/**

 * CodeIgniter Profiler Class

 *

 * This class enables you to display benchmark, query, and other data

 * in order to help with debugging and optimization.

 *

 * Note: At some point it would be good to move all the HTML in this class

 * into a set of template files in order to allow customization.

 *

 * @package		CodeIgniter

 * @subpackage	Libraries

 * @category	Libraries

 * @author		ExpressionEngine Dev Team

 * @link		http://codeigniter.com/user_guide/general/profiling.html

 */

class CI_Profiler {



	protected $_available_sections = array(

										'benchmarks',

										'get',

										'memory_usage',

										'post',

										'uri_string',

										'controller_info',

										'queries',

										'http_headers',

										'session_data',

										'config'

										);



	protected $_query_toggle_count = 25;



	protected $CI;



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



	public function __construct($config = array())

	{

		$this->CI =& get_instance();

		$this->CI->load->language('profiler');



		if (isset($config['query_toggle_count']))

		{

			$this->_query_toggle_count = (int) $config['query_toggle_count'];

			unset($config['query_toggle_count']);

		}



		// default all sections to display

		foreach ($this->_available_sections as $section)

		{

			if ( ! isset($config[$section]))

			{

				$this->_compile_{$section} = TRUE;

			}

		}



		$this->set_sections($config);

	}



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



	/**

	 * Set Sections

	 *

	 * Sets the private _compile_* properties to enable/disable Profiler sections

	 *

	 * @param	mixed

	 * @return	void

	 */

	public function set_sections($config)

	{

		foreach ($config as $method => $enable)

		{

			if (in_array($method, $this->_available_sections))

			{

				$this->_compile_{$method} = ($enable !== FALSE) ? TRUE : FALSE;

			}

		}

	}



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



	/**

	 * Auto Profiler

	 *

	 * This function cycles through the entire array of mark points and

	 * matches any two points that are named identically (ending in "_start"

	 * and "_end" respectively).  It then compiles the execution times for

	 * all points and returns it as an array

	 *

	 * @return	array

	 */

	protected function _compile_benchmarks()

	{

		$profile = array();

		foreach ($this->CI->benchmark->marker as $key => $val)

		{

			// We match the "end" marker so that the list ends

			// up in the order that it was defined

			if (preg_match("/(.+?)_end/i", $key, $match))

			{

				if (isset($this->CI->benchmark->marker[$match[1].'_end']) AND isset($this->CI->benchmark->marker[$match[1].'_start']))

				{

					$profile[$match[1]] = $this->CI->benchmark->elapsed_time($match[1].'_start', $key);

				}

			}

		}



		// Build a table containing the profile data.

		// Note: At some point we should turn this into a template that can

		// be modified.  We also might want to make this data available to be logged



		$output  = "\n\n";

		$output .= '<fieldset id="ci_profiler_benchmarks" style="border:1px solid #900;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';

		$output .= "\n";

		$output .= '<legend style="color:#900;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_benchmarks').'&nbsp;&nbsp;</legend>';

		$output .= "\n";

		$output .= "\n\n<table style='width:100%'>\n";



		foreach ($profile as $key => $val)

		{

			$key = ucwords(str_replace(array('_', '-'), ' ', $key));

			$output .= "<tr><td style='padding:5px;width:50%;color:#000;font-weight:bold;background-color:#ddd;'>".$key."&nbsp;&nbsp;</td><td style='padding:5px;width:50%;color:#900;font-weight:normal;background-color:#ddd;'>".$val."</td></tr>\n";

		}



		$output .= "</table>\n";

		$output .= "</fieldset>";



		return $output;

	}



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



	/**

	 * Compile Queries

	 *

	 * @return	string

	 */

	protected function _compile_queries()

	{

		$dbs = array();



		// Let's determine which databases are currently connected to

		foreach (get_object_vars($this->CI) as $CI_object)

		{

			if (is_object($CI_object) && is_subclass_of(get_class($CI_object), 'CI_DB') )

			{

				$dbs[] = $CI_object;

			}

		}



		if (count($dbs) == 0)

		{

			$output  = "\n\n";

			$output .= '<fieldset id="ci_profiler_queries" style="border:1px solid #0000FF;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';

			$output .= "\n";

			$output .= '<legend style="color:#0000FF;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_queries').'&nbsp;&nbsp;</legend>';

			$output .= "\n";

			$output .= "\n\n<table style='border:none; width:100%;'>\n";

			$output .="<tr><td style='width:100%;color:#0000FF;font-weight:normal;background-color:#eee;padding:5px'>".$this->CI->lang->line('profiler_no_db')."</td></tr>\n";

			$output .= "</table>\n";

			$output .= "</fieldset>";



			return $output;

		}



		// Load the text helper so we can highlight the SQL

		$this->CI->load->helper('text');



		// Key words we want bolded

		$highlight = array('SELECT', 'DISTINCT', 'FROM', 'WHERE', 'AND', 'LEFT&nbsp;JOIN', 'ORDER&nbsp;BY', 'GROUP&nbsp;BY', 'LIMIT', 'INSERT', 'INTO', 'VALUES', 'UPDATE', 'OR&nbsp;', 'HAVING', 'OFFSET', 'NOT&nbsp;IN', 'IN', 'LIKE', 'NOT&nbsp;LIKE', 'COUNT', 'MAX', 'MIN', 'ON', 'AS', 'AVG', 'SUM', '(', ')');



		$output  = "\n\n";



		$count = 0;



		foreach ($dbs as $db)

		{

			$count++;



			$hide_queries = (count($db->queries) > $this->_query_toggle_count) ? ' display:none' : '';



			$show_hide_js = '(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_queries_db_'.$count.'\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_hide').'\'?\''.$this->CI->lang->line('profiler_section_show').'\':\''.$this->CI->lang->line('profiler_section_hide').'\';">'.$this->CI->lang->line('profiler_section_hide').'</span>)';



			if ($hide_queries != '')

			{

				$show_hide_js = '(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_queries_db_'.$count.'\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_show').'\'?\''.$this->CI->lang->line('profiler_section_hide').'\':\''.$this->CI->lang->line('profiler_section_show').'\';">'.$this->CI->lang->line('profiler_section_show').'</span>)';

			}



			$output .= '<fieldset style="border:1px solid #0000FF;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';

			$output .= "\n";

			$output .= '<legend style="color:#0000FF;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_database').':&nbsp; '.$db->database.'&nbsp;&nbsp;&nbsp;'.$this->CI->lang->line('profiler_queries').': '.count($db->queries).'&nbsp;&nbsp;'.$show_hide_js.'</legend>';

			$output .= "\n";

			$output .= "\n\n<table style='width:100%;{$hide_queries}' id='ci_profiler_queries_db_{$count}'>\n";



			if (count($db->queries) == 0)

			{

				$output .= "<tr><td style='width:100%;color:#0000FF;font-weight:normal;background-color:#eee;padding:5px;'>".$this->CI->lang->line('profiler_no_queries')."</td></tr>\n";

			}

			else

			{

				foreach ($db->queries as $key => $val)

				{

					$time = number_format($db->query_times[$key], 4);



					$val = highlight_code($val, ENT_QUOTES);



					foreach ($highlight as $bold)

					{

						$val = str_replace($bold, '<strong>'.$bold.'</strong>', $val);

					}



					$output .= "<tr><td style='padding:5px; vertical-align: top;width:1%;color:#900;font-weight:normal;background-color:#ddd;'>".$time."&nbsp;&nbsp;</td><td style='padding:5px; color:#000;font-weight:normal;background-color:#ddd;'>".$val."</td></tr>\n";

				}

			}



			$output .= "</table>\n";

			$output .= "</fieldset>";



		}



		return $output;

	}





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



	/**

	 * Compile $_GET Data

	 *

	 * @return	string

	 */

	protected function _compile_get()

	{

		$output  = "\n\n";

		$output .= '<fieldset id="ci_profiler_get" style="border:1px solid #cd6e00;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';

		$output .= "\n";

		$output .= '<legend style="color:#cd6e00;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_get_data').'&nbsp;&nbsp;</legend>';

		$output .= "\n";



		if (count($_GET) == 0)

		{

			$output .= "<div style='color:#cd6e00;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_get')."</div>";

		}

		else

		{

			$output .= "\n\n<table style='width:100%; border:none'>\n";



			foreach ($_GET as $key => $val)

			{

				if ( ! is_numeric($key))

				{

					$key = "'".$key."'";

				}



				$output .= "<tr><td style='width:50%;color:#000;background-color:#ddd;padding:5px'>&#36;_GET[".$key."]&nbsp;&nbsp; </td><td style='width:50%;padding:5px;color:#cd6e00;font-weight:normal;background-color:#ddd;'>";

				if (is_array($val))

				{

					$output .= "<pre>" . htmlspecialchars(stripslashes(print_r($val, true))) . "</pre>";

				}

				else

				{

					$output .= htmlspecialchars(stripslashes($val));

				}

				$output .= "</td></tr>\n";

			}



			$output .= "</table>\n";

		}

		$output .= "</fieldset>";



		return $output;

	}



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



	/**

	 * Compile $_POST Data

	 *

	 * @return	string

	 */

	protected function _compile_post()

	{

		$output  = "\n\n";

		$output .= '<fieldset id="ci_profiler_post" style="border:1px solid #009900;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';

		$output .= "\n";

		$output .= '<legend style="color:#009900;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_post_data').'&nbsp;&nbsp;</legend>';

		$output .= "\n";



		if (count($_POST) == 0)

		{

			$output .= "<div style='color:#009900;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_post')."</div>";

		}

		else

		{

			$output .= "\n\n<table style='width:100%'>\n";



			foreach ($_POST as $key => $val)

			{

				if ( ! is_numeric($key))

				{

					$key = "'".$key."'";

				}



				$output .= "<tr><td style='width:50%;padding:5px;color:#000;background-color:#ddd;'>&#36;_POST[".$key."]&nbsp;&nbsp; </td><td style='width:50%;padding:5px;color:#009900;font-weight:normal;background-color:#ddd;'>";

				if (is_array($val))

				{

					$output .= "<pre>" . htmlspecialchars(stripslashes(print_r($val, TRUE))) . "</pre>";

				}

				else

				{

					$output .= htmlspecialchars(stripslashes($val));

				}

				$output .= "</td></tr>\n";

			}



			$output .= "</table>\n";

		}

		$output .= "</fieldset>";



		return $output;

	}



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



	/**

	 * Show query string

	 *

	 * @return	string

	 */

	protected function _compile_uri_string()

	{

		$output  = "\n\n";

		$output .= '<fieldset id="ci_profiler_uri_string" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';

		$output .= "\n";

		$output .= '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_uri_string').'&nbsp;&nbsp;</legend>';

		$output .= "\n";



		if ($this->CI->uri->uri_string == '')

		{

			$output .= "<div style='color:#000;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_uri')."</div>";

		}

		else

		{

			$output .= "<div style='color:#000;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->uri->uri_string."</div>";

		}



		$output .= "</fieldset>";



		return $output;

	}



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



	/**

	 * Show the controller and function that were called

	 *

	 * @return	string

	 */

	protected function _compile_controller_info()

	{

		$output  = "\n\n";

		$output .= '<fieldset id="ci_profiler_controller_info" style="border:1px solid #995300;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';

		$output .= "\n";

		$output .= '<legend style="color:#995300;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_controller_info').'&nbsp;&nbsp;</legend>';

		$output .= "\n";



		$output .= "<div style='color:#995300;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->router->fetch_class()."/".$this->CI->router->fetch_method()."</div>";



		$output .= "</fieldset>";



		return $output;

	}



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



	/**

	 * Compile memory usage

	 *

	 * Display total used memory

	 *

	 * @return	string

	 */

	protected function _compile_memory_usage()

	{

		$output  = "\n\n";

		$output .= '<fieldset id="ci_profiler_memory_usage" style="border:1px solid #5a0099;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';

		$output .= "\n";

		$output .= '<legend style="color:#5a0099;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_memory_usage').'&nbsp;&nbsp;</legend>';

		$output .= "\n";



		if (function_exists('memory_get_usage') && ($usage = memory_get_usage()) != '')

		{

			$output .= "<div style='color:#5a0099;font-weight:normal;padding:4px 0 4px 0'>".number_format($usage).' bytes</div>';

		}

		else

		{

			$output .= "<div style='color:#5a0099;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_memory')."</div>";

		}



		$output .= "</fieldset>";



		return $output;

	}



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



	/**

	 * Compile header information

	 *

	 * Lists HTTP headers

	 *

	 * @return	string

	 */

	protected function _compile_http_headers()

	{

		$output  = "\n\n";

		$output .= '<fieldset id="ci_profiler_http_headers" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';

		$output .= "\n";

		$output .= '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_headers').'&nbsp;&nbsp;(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_httpheaders_table\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_show').'\'?\''.$this->CI->lang->line('profiler_section_hide').'\':\''.$this->CI->lang->line('profiler_section_show').'\';">'.$this->CI->lang->line('profiler_section_show').'</span>)</legend>';

		$output .= "\n";



		$output .= "\n\n<table style='width:100%;display:none' id='ci_profiler_httpheaders_table'>\n";



		foreach (array('HTTP_ACCEPT', 'HTTP_USER_AGENT', 'HTTP_CONNECTION', 'SERVER_PORT', 'SERVER_NAME', 'REMOTE_ADDR', 'SERVER_SOFTWARE', 'HTTP_ACCEPT_LANGUAGE', 'SCRIPT_NAME', 'REQUEST_METHOD',' HTTP_HOST', 'REMOTE_HOST', 'CONTENT_TYPE', 'SERVER_PROTOCOL', 'QUERY_STRING', 'HTTP_ACCEPT_ENCODING', 'HTTP_X_FORWARDED_FOR') as $header)

		{

			$val = (isset($_SERVER[$header])) ? $_SERVER[$header] : '';

			$output .= "<tr><td style='vertical-align: top;width:50%;padding:5px;color:#900;background-color:#ddd;'>".$header."&nbsp;&nbsp;</td><td style='width:50%;padding:5px;color:#000;background-color:#ddd;'>".$val."</td></tr>\n";

		}



		$output .= "</table>\n";

		$output .= "</fieldset>";



		return $output;

	}



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



	/**

	 * Compile config information

	 *

	 * Lists developer config variables

	 *

	 * @return	string

	 */

	protected function _compile_config()

	{

		$output  = "\n\n";

		$output .= '<fieldset id="ci_profiler_config" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';

		$output .= "\n";

		$output .= '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_config').'&nbsp;&nbsp;(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_config_table\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_show').'\'?\''.$this->CI->lang->line('profiler_section_hide').'\':\''.$this->CI->lang->line('profiler_section_show').'\';">'.$this->CI->lang->line('profiler_section_show').'</span>)</legend>';

		$output .= "\n";



		$output .= "\n\n<table style='width:100%; display:none' id='ci_profiler_config_table'>\n";



		foreach ($this->CI->config->config as $config=>$val)

		{

			if (is_array($val))

			{

				$val = print_r($val, TRUE);

			}



			$output .= "<tr><td style='padding:5px; vertical-align: top;color:#900;background-color:#ddd;'>".$config."&nbsp;&nbsp;</td><td style='padding:5px; color:#000;background-color:#ddd;'>".htmlspecialchars($val)."</td></tr>\n";

		}



		$output .= "</table>\n";

		$output .= "</fieldset>";



		return $output;

	}



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



	/**

	 * Compile session userdata

	 *

	 * @return 	string

	 */

	private function _compile_session_data()

	{

		if ( ! isset($this->CI->session))

		{

			return;

		}



		$output = '<fieldset id="ci_profiler_csession" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';

		$output .= '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_session_data').'&nbsp;&nbsp;(<span style="cursor: pointer;" onclick="var s=document.getElementById(\'ci_profiler_session_data\').style;s.display=s.display==\'none\'?\'\':\'none\';this.innerHTML=this.innerHTML==\''.$this->CI->lang->line('profiler_section_show').'\'?\''.$this->CI->lang->line('profiler_section_hide').'\':\''.$this->CI->lang->line('profiler_section_show').'\';">'.$this->CI->lang->line('profiler_section_show').'</span>)</legend>';

		$output .= "<table style='width:100%;display:none' id='ci_profiler_session_data'>";



		foreach ($this->CI->session->all_userdata() as $key => $val)

		{

			if (is_array($val) OR is_object($val))

			{

				$val = print_r($val, TRUE);

			}



			$output .= "<tr><td style='padding:5px; vertical-align: top;color:#900;background-color:#ddd;'>".$key."&nbsp;&nbsp;</td><td style='padding:5px; color:#000;background-color:#ddd;'>".htmlspecialchars($val)."</td></tr>\n";

		}



		$output .= '</table>';

		$output .= "</fieldset>";

		return $output;

	}



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



	/**

	 * Run the Profiler

	 *

	 * @return	string

	 */

	public function run()

	{

		$output = "<div id='codeigniter_profiler' style='clear:both;background-color:#fff;padding:10px;'>";

		$fields_displayed = 0;



		foreach ($this->_available_sections as $section)

		{

			if ($this->_compile_{$section} !== FALSE)

			{

				$func = "_compile_{$section}";

				$output .= $this->{$func}();

				$fields_displayed++;

			}

		}



		if ($fields_displayed == 0)

		{

			$output .= '<p style="border:1px solid #5a0099;padding:10px;margin:20px 0;background-color:#eee">'.$this->CI->lang->line('profiler_no_profiles').'</p>';

		}



		$output .= '</div>';



		return $output;

	}

}



// END CI_Profiler class



/* End of file Profiler.php */

/* Location: ./system/libraries/Profiler.php */