/
debug.php
2002 lines (1646 loc) · 46.4 KB
/
debug.php
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<?php
/**
* @package Joomla.Plugin
* @subpackage System.Debug
*
* @copyright Copyright (C) 2005 - 2016 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
defined('_JEXEC') or die;
use Joomla\Utilities\ArrayHelper;
/**
* Joomla! Debug plugin.
*
* @since 1.5
*/
class PlgSystemDebug extends JPlugin
{
/**
* xdebug.file_link_format from the php.ini.
*
* @var string
* @since 1.7
*/
protected $linkFormat = '';
/**
* True if debug lang is on.
*
* @var boolean
* @since 3.0
*/
private $debugLang = false;
/**
* Holds log entries handled by the plugin.
*
* @var array
* @since 3.1
*/
private $logEntries = array();
/**
* Holds SHOW PROFILES of queries.
*
* @var array
* @since 3.1.2
*/
private $sqlShowProfiles = array();
/**
* Holds all SHOW PROFILE FOR QUERY n, indexed by n-1.
*
* @var array
* @since 3.1.2
*/
private $sqlShowProfileEach = array();
/**
* Holds all EXPLAIN EXTENDED for all queries.
*
* @var array
* @since 3.1.2
*/
private $explains = array();
/**
* Holds total amount of executed queries.
*
* @var int
* @since 3.2
*/
private $totalQueries = 0;
/**
* Application object.
*
* @var JApplicationCms
* @since 3.3
*/
protected $app;
/**
* Constructor.
*
* @param object &$subject The object to observe.
* @param array $config An optional associative array of configuration settings.
*
* @since 1.5
*/
public function __construct(&$subject, $config)
{
parent::__construct($subject, $config);
// Log the deprecated API.
if ($this->params->get('log-deprecated'))
{
JLog::addLogger(array('text_file' => 'deprecated.php'), JLog::ALL, array('deprecated'));
}
// Log everything (except deprecated APIs, these are logged separately with the option above).
if ($this->params->get('log-everything'))
{
JLog::addLogger(array('text_file' => 'everything.php'), JLog::ALL, array('deprecated', 'databasequery'), true);
}
// Get the application if not done by JPlugin. This may happen during upgrades from Joomla 2.5.
if (!$this->app)
{
$this->app = JFactory::getApplication();
}
$this->debugLang = $this->app->get('debug_lang');
// Skip the plugin if debug is off
if ($this->debugLang == '0' && $this->app->get('debug') == '0')
{
return;
}
// Only if debugging or language debug is enabled.
if (JDEBUG || $this->debugLang)
{
JFactory::getConfig()->set('gzip', 0);
ob_start();
ob_implicit_flush(false);
}
$this->linkFormat = ini_get('xdebug.file_link_format');
if ($this->params->get('logs', 1))
{
$priority = 0;
foreach ($this->params->get('log_priorities', array()) as $p)
{
$const = 'JLog::' . strtoupper($p);
if (!defined($const))
{
continue;
}
$priority |= constant($const);
}
// Split into an array at any character other than alphabet, numbers, _, ., or -
$categories = array_filter(preg_split('/[^A-Z0-9_\.-]/i', $this->params->get('log_categories', '')));
$mode = $this->params->get('log_category_mode', 0);
JLog::addLogger(array('logger' => 'callback', 'callback' => array($this, 'logger')), $priority, $categories, $mode);
}
// Prepare disconnect handler for SQL profiling.
$db = JFactory::getDbo();
$db->addDisconnectHandler(array($this, 'mysqlDisconnectHandler'));
}
/**
* Add the CSS for debug.
* We can't do this in the constructor because stuff breaks.
*
* @return void
*
* @since 2.5
*/
public function onAfterDispatch()
{
// Only if debugging or language debug is enabled.
if ((JDEBUG || $this->debugLang) && $this->isAuthorisedDisplayDebug())
{
JHtml::_('stylesheet', 'cms/debug.css', array(), true);
}
// Only if debugging is enabled for SQL query popovers.
if (JDEBUG && $this->isAuthorisedDisplayDebug())
{
JHtml::_('bootstrap.tooltip');
JHtml::_('bootstrap.popover', '.hasPopover', array('placement' => 'top'));
}
}
/**
* Show the debug info.
*
* @return void
*
* @since 1.6
*/
public function onAfterRespond()
{
// Do not render if debugging or language debug is not enabled.
if (!JDEBUG && !$this->debugLang)
{
return;
}
// User has to be authorised to see the debug information.
if (!$this->isAuthorisedDisplayDebug())
{
return;
}
// Only render for HTML output.
if (JFactory::getDocument()->getType() !== 'html')
{
return;
}
// Capture output.
$contents = ob_get_contents();
if ($contents)
{
ob_end_clean();
}
// No debug for Safari and Chrome redirection.
if (strstr(strtolower(isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : ""), 'webkit') !== false
&& substr($contents, 0, 50) == '<html><head><meta http-equiv="refresh" content="0;')
{
echo $contents;
return;
}
// Load language.
$this->loadLanguage();
$html = array();
// Some "mousewheel protecting" JS.
$html[] = "<script>function toggleContainer(name)
{
var e = document.getElementById(name);// MooTools might not be available ;)
e.style.display = (e.style.display == 'none') ? 'block' : 'none';
}</script>";
$html[] = '<div id="system-debug" class="profiler">';
$html[] = '<h1>' . JText::_('PLG_DEBUG_TITLE') . '</h1>';
if (JDEBUG)
{
if (JError::getErrors())
{
$html[] = $this->display('errors');
}
$html[] = $this->display('session');
if ($this->params->get('profile', 1))
{
$html[] = $this->display('profile_information');
}
if ($this->params->get('memory', 1))
{
$html[] = $this->display('memory_usage');
}
if ($this->params->get('queries', 1))
{
$html[] = $this->display('queries');
}
if ($this->params->get('logs', 1) && !empty($this->logEntries))
{
$html[] = $this->display('logs');
}
}
if ($this->debugLang)
{
if ($this->params->get('language_errorfiles', 1))
{
$languageErrors = JFactory::getLanguage()->getErrorFiles();
$html[] = $this->display('language_files_in_error', $languageErrors);
}
if ($this->params->get('language_files', 1))
{
$html[] = $this->display('language_files_loaded');
}
if ($this->params->get('language_strings'))
{
$html[] = $this->display('untranslated_strings');
}
}
$html[] = '</div>';
echo str_replace('</body>', implode('', $html) . '</body>', $contents);
}
/**
* Method to check if the current user is allowed to see the debug information or not.
*
* @return boolean True is access is allowed.
*
* @since 3.0
*/
private function isAuthorisedDisplayDebug()
{
static $result = null;
if (!is_null($result))
{
return $result;
}
// If the user is not allowed to view the output then end here.
$filterGroups = (array) $this->params->get('filter_groups', null);
if (!empty($filterGroups))
{
$userGroups = JFactory::getUser()->get('groups');
if (!array_intersect($filterGroups, $userGroups))
{
$result = false;
return false;
}
}
$result = true;
return true;
}
/**
* General display method.
*
* @param string $item The item to display.
* @param array $errors Errors occurred during execution.
*
* @return string
*
* @since 2.5
*/
protected function display($item, array $errors = array())
{
$title = JText::_('PLG_DEBUG_' . strtoupper($item));
$status = '';
if (count($errors))
{
$status = ' dbg-error';
}
$fncName = 'display' . ucfirst(str_replace('_', '', $item));
if (!method_exists($this, $fncName))
{
return __METHOD__ . ' -- Unknown method: ' . $fncName . '<br />';
}
$html = array();
$js = "toggleContainer('dbg_container_" . $item . "');";
$class = 'dbg-header' . $status;
$html[] = '<div class="' . $class . '" onclick="' . $js . '"><a href="javascript:void(0);"><h3>' . $title . '</h3></a></div>';
// @todo set with js.. ?
$style = ' style="display: none;"';
$html[] = '<div ' . $style . ' class="dbg-container" id="dbg_container_' . $item . '">';
$html[] = $this->$fncName();
$html[] = '</div>';
return implode('', $html);
}
/**
* Display session information.
*
* Called recursively.
*
* @param string $key A session key.
* @param mixed $session The session array, initially null.
* @param integer $id Used to identify the DIV for the JavaScript toggling code.
*
* @return string
*
* @since 2.5
*/
protected function displaySession($key = '', $session = null, $id = 0)
{
if (!$session)
{
$session = JFactory::getSession()->getData();
}
$html = array();
static $id;
if (!is_array($session))
{
$html[] = $key . '<pre>' . $this->prettyPrintJSON($session) . '</pre>' . PHP_EOL;
}
else
{
foreach ($session as $sKey => $entries)
{
$display = true;
if (is_array($entries) && $entries)
{
$display = false;
}
if (is_object($entries))
{
$o = ArrayHelper::fromObject($entries);
if ($o)
{
$entries = $o;
$display = false;
}
}
if (!$display)
{
$js = "toggleContainer('dbg_container_session" . $id . '_' . $sKey . "');";
$html[] = '<div class="dbg-header" onclick="' . $js . '"><a href="javascript:void(0);"><h3>' . $sKey . '</h3></a></div>';
// @todo set with js.. ?
$style = ' style="display: none;"';
$html[] = '<div ' . $style . ' class="dbg-container" id="dbg_container_session' . $id . '_' . $sKey . '">';
$id++;
// Recurse...
$this->displaySession($sKey, $entries, $id);
$html[] = '</div>';
continue;
}
if (is_array($entries))
{
$entries = implode($entries);
}
if (is_string($entries))
{
$html[] = $sKey . '<pre>' . $this->prettyPrintJSON($entries) . '</pre>' . PHP_EOL;
}
}
}
return implode('', $html);
}
/**
* Display errors.
*
* @return string
*
* @since 2.5
*/
protected function displayErrors()
{
$html = array();
$html[] = '<ol>';
while ($error = JError::getError(true))
{
$col = (E_WARNING == $error->get('level')) ? 'red' : 'orange';
$html[] = '<li>';
$html[] = '<b style="color: ' . $col . '">' . $error->getMessage() . '</b><br />';
$info = $error->get('info');
if ($info)
{
$html[] = '<pre>' . print_r($info, true) . '</pre><br />';
}
$html[] = $this->renderBacktrace($error);
$html[] = '</li>';
}
$html[] = '</ol>';
return implode('', $html);
}
/**
* Display profile information.
*
* @return string
*
* @since 2.5
*/
protected function displayProfileInformation()
{
$html = array();
$htmlMarks = array();
$totalTime = 0;
$totalMem = 0;
$marks = array();
foreach (JProfiler::getInstance('Application')->getMarks() as $mark)
{
$totalTime += $mark->time;
$totalMem += $mark->memory;
$htmlMark = sprintf(
JText::_('PLG_DEBUG_TIME') . ': <span class="label label-time">%.2f ms</span> / <span class="label label-default">%.2f ms</span>'
. ' ' . JText::_('PLG_DEBUG_MEMORY') . ': <span class="label label-memory">%0.3f MB</span> / <span class="label label-default">%0.2f MB</span>'
. ' %s: %s',
$mark->time,
$mark->totalTime,
$mark->memory,
$mark->totalMemory,
$mark->prefix,
$mark->label
);
$marks[] = (object) array(
'time' => $mark->time,
'memory' => $mark->memory,
'html' => $htmlMark,
'tip' => $mark->label
);
}
$avgTime = $totalTime / count($marks);
$avgMem = $totalMem / count($marks);
foreach ($marks as $mark)
{
if ($mark->time > $avgTime * 1.5)
{
$barClass = 'bar-danger';
$labelClass = 'label-important label-danger';
}
elseif ($mark->time < $avgTime / 1.5)
{
$barClass = 'bar-success';
$labelClass = 'label-success';
}
else
{
$barClass = 'bar-warning';
$labelClass = 'label-warning';
}
if ($mark->memory > $avgMem * 1.5)
{
$barClassMem = 'bar-danger';
$labelClassMem = 'label-important label-danger';
}
elseif ($mark->memory < $avgMem / 1.5)
{
$barClassMem = 'bar-success';
$labelClassMem = 'label-success';
}
else
{
$barClassMem = 'bar-warning';
$labelClassMem = 'label-warning';
}
$barClass .= " progress-$barClass";
$barClassMem .= " progress-$barClassMem";
$bars[] = (object) array(
'width' => round($mark->time / ($totalTime / 100), 4),
'class' => $barClass,
'tip' => $mark->tip . ' ' . round($mark->time, 2) . ' ms'
);
$barsMem[] = (object) array(
'width' => round($mark->memory / ($totalMem / 100), 4),
'class' => $barClassMem,
'tip' => $mark->tip . ' ' . round($mark->memory, 3) . ' MB',
);
$htmlMarks[] = '<div>' . str_replace('label-time', $labelClass, str_replace('label-memory', $labelClassMem, $mark->html)) . '</div>';
}
$html[] = '<h4>' . JText::_('PLG_DEBUG_TIME') . '</h4>';
$html[] = $this->renderBars($bars, 'profile');
$html[] = '<h4>' . JText::_('PLG_DEBUG_MEMORY') . '</h4>';
$html[] = $this->renderBars($barsMem, 'profile');
$html[] = '<div class="dbg-profile-list">' . implode('', $htmlMarks) . '</div>';
$db = JFactory::getDbo();
// fix for support custom shutdown function via register_shutdown_function().
$db->disconnect();
$log = $db->getLog();
if ($log)
{
$timings = $db->getTimings();
if ($timings)
{
$totalQueryTime = 0.0;
$lastStart = null;
foreach ($timings as $k => $v)
{
if (!($k % 2))
{
$lastStart = $v;
}
else
{
$totalQueryTime += $v - $lastStart;
}
}
$totalQueryTime = $totalQueryTime * 1000;
if ($totalQueryTime > ($totalTime * 0.25))
{
$labelClass = 'label-important';
}
elseif ($totalQueryTime < ($totalTime * 0.15))
{
$labelClass = 'label-success';
}
else
{
$labelClass = 'label-warning';
}
$html[] = '<br /><div>' . JText::sprintf(
'PLG_DEBUG_QUERIES_TIME',
sprintf('<span class="label ' . $labelClass . '">%.2f ms</span>', $totalQueryTime)
) . '</div>';
if ($this->params->get('log-executed-sql', '0'))
{
$this->writeToFile();
}
}
}
return implode('', $html);
}
/**
* Display memory usage.
*
* @return string
*
* @since 2.5
*/
protected function displayMemoryUsage()
{
$bytes = memory_get_usage();
return '<span class="label label-default">' . JHtml::_('number.bytes', $bytes) . '</span>'
. ' (<span class="label label-default">'
. number_format($bytes, 0, JText::_('DECIMALS_SEPARATOR'), JText::_('THOUSANDS_SEPARATOR'))
. ' '
. JText::_('PLG_DEBUG_BYTES')
. '</span>)';
}
/**
* Display logged queries.
*
* @return string
*
* @since 2.5
*/
protected function displayQueries()
{
$db = JFactory::getDbo();
$log = $db->getLog();
if (!$log)
{
return null;
}
$timings = $db->getTimings();
$callStacks = $db->getCallStacks();
$db->setDebug(false);
$selectQueryTypeTicker = array();
$otherQueryTypeTicker = array();
$timing = array();
$maxtime = 0;
if (isset($timings[0]))
{
$startTime = $timings[0];
$endTime = $timings[count($timings) - 1];
$totalBargraphTime = $endTime - $startTime;
if ($totalBargraphTime > 0)
{
foreach ($log as $id => $query)
{
if (isset($timings[$id * 2 + 1]))
{
// Compute the query time: $timing[$k] = array( queryTime, timeBetweenQueries ).
$timing[$id] = array(($timings[$id * 2 + 1] - $timings[$id * 2]) * 1000, $id > 0 ? ($timings[$id * 2] - $timings[$id * 2 - 1]) * 1000 : 0);
$maxtime = max($maxtime, $timing[$id]['0']);
}
}
}
}
else
{
$startTime = null;
$totalBargraphTime = 1;
}
$bars = array();
$info = array();
$totalQueryTime = 0;
$duplicates = array();
foreach ($log as $id => $query)
{
$did = md5($query);
if (!isset($duplicates[$did]))
{
$duplicates[$did] = array();
}
$duplicates[$did][] = $id;
if ($timings && isset($timings[$id * 2 + 1]))
{
// Compute the query time.
$queryTime = ($timings[$id * 2 + 1] - $timings[$id * 2]) * 1000;
$totalQueryTime += $queryTime;
// Run an EXPLAIN EXTENDED query on the SQL query if possible.
$hasWarnings = false;
$hasWarningsInProfile = false;
if (isset($this->explains[$id]))
{
$explain = $this->tableToHtml($this->explains[$id], $hasWarnings);
}
else
{
$explain = JText::sprintf('PLG_DEBUG_QUERY_EXPLAIN_NOT_POSSIBLE', htmlspecialchars($query));
}
// Run a SHOW PROFILE query.
$profile = '';
if (in_array($db->name, array('mysqli', 'mysql', 'pdomysql')))
{
if (isset($this->sqlShowProfileEach[$id]))
{
$profileTable = $this->sqlShowProfileEach[$id];
$profile = $this->tableToHtml($profileTable, $hasWarningsInProfile);
}
}
// How heavy should the string length count: 0 - 1.
$ratio = 0.5;
$timeScore = $queryTime / ((strlen($query) + 1) * $ratio) * 200;
// Determine color of bargraph depending on query speed and presence of warnings in EXPLAIN.
if ($timeScore > 10)
{
$barClass = 'bar-danger';
$labelClass = 'label-important';
}
elseif ($hasWarnings || $timeScore > 5)
{
$barClass = 'bar-warning';
$labelClass = 'label-warning';
}
else
{
$barClass = 'bar-success';
$labelClass = 'label-success';
}
// Computes bargraph as follows: Position begin and end of the bar relatively to whole execution time.
$prevBar = ($id && isset($bars[$id - 1])) ? $bars[$id - 1] : 0;
$barPre = round($timing[$id][1] / ($totalBargraphTime * 10), 4);
$barWidth = round($timing[$id][0] / ($totalBargraphTime * 10), 4);
$minWidth = 0.3;
if ($barWidth < $minWidth)
{
$barPre -= ($minWidth - $barWidth);
if ($barPre < 0)
{
$minWidth += $barPre;
$barPre = 0;
}
$barWidth = $minWidth;
}
$bars[$id] = (object) array(
'class' => $barClass,
'width' => $barWidth,
'pre' => $barPre,
'tip' => sprintf('%.2f ms', $queryTime)
);
$info[$id] = (object) array(
'class' => $labelClass,
'explain' => $explain,
'profile' => $profile,
'hasWarnings' => $hasWarnings
);
}
}
// Remove single queries from $duplicates.
$total_duplicates = 0;
foreach ($duplicates as $did => $dups)
{
if (count($dups) < 2)
{
unset($duplicates[$did]);
}
else
{
$total_duplicates += count($dups);
}
}
// Fix first bar width.
$minWidth = 0.3;
if ($bars[0]->width < $minWidth && isset($bars[1]))
{
$bars[1]->pre -= ($minWidth - $bars[0]->width);
if ($bars[1]->pre < 0)
{
$minWidth += $bars[1]->pre;
$bars[1]->pre = 0;
}
$bars[0]->width = $minWidth;
}
$memoryUsageNow = memory_get_usage();
$list = array();
foreach ($log as $id => $query)
{
// Start query type ticker additions.
$fromStart = stripos($query, 'from');
$whereStart = stripos($query, 'where', $fromStart);
if ($whereStart === false)
{
$whereStart = stripos($query, 'order by', $fromStart);
}
if ($whereStart === false)
{
$whereStart = strlen($query) - 1;
}
$fromString = substr($query, 0, $whereStart);
$fromString = str_replace("\t", " ", $fromString);
$fromString = str_replace("\n", " ", $fromString);
$fromString = trim($fromString);
// Initialise the select/other query type counts the first time.
if (!isset($selectQueryTypeTicker[$fromString]))
{
$selectQueryTypeTicker[$fromString] = 0;
}
if (!isset($otherQueryTypeTicker[$fromString]))
{
$otherQueryTypeTicker[$fromString] = 0;
}
// Increment the count.
if (stripos($query, 'select') === 0)
{
$selectQueryTypeTicker[$fromString] = $selectQueryTypeTicker[$fromString] + 1;
unset($otherQueryTypeTicker[$fromString]);
}
else
{
$otherQueryTypeTicker[$fromString] = $otherQueryTypeTicker[$fromString] + 1;
unset($selectQueryTypeTicker[$fromString]);
}
$text = $this->highlightQuery($query);
if ($timings && isset($timings[$id * 2 + 1]))
{
// Compute the query time.
$queryTime = ($timings[$id * 2 + 1] - $timings[$id * 2]) * 1000;
// Timing
// Formats the output for the query time with EXPLAIN query results as tooltip:
$htmlTiming = '<div style="margin: 0 0 5px;"><span class="dbg-query-time">';
$htmlTiming .= JText::sprintf(
'PLG_DEBUG_QUERY_TIME',
sprintf(
'<span class="label %s">%.2f ms</span>',
$info[$id]->class,
$timing[$id]['0']
)
);
if ($timing[$id]['1'])
{
$htmlTiming .= ' ' . JText::sprintf('PLG_DEBUG_QUERY_AFTER_LAST',
sprintf('<span class="label label-default">%.2f ms</span>', $timing[$id]['1'])
);
}
$htmlTiming .= '</span>';
if (isset($callStacks[$id][0]['memory']))
{
$memoryUsed = $callStacks[$id][0]['memory'][1] - $callStacks[$id][0]['memory'][0];
$memoryBeforeQuery = $callStacks[$id][0]['memory'][0];
// Determine colour of query memory usage.
if ($memoryUsed > 0.1 * $memoryUsageNow)
{
$labelClass = 'label-important';
}
elseif ($memoryUsed > 0.05 * $memoryUsageNow)
{
$labelClass = 'label-warning';
}
else
{
$labelClass = 'label-success';
}
$htmlTiming .= ' ' . '<span class="dbg-query-memory">' . JText::sprintf('PLG_DEBUG_MEMORY_USED_FOR_QUERY',
sprintf('<span class="label ' . $labelClass . '">%.3f MB</span>', $memoryUsed / 1048576),
sprintf('<span class="label label-default">%.3f MB</span>', $memoryBeforeQuery / 1048576)
)
. '</span>';
if ($callStacks[$id][0]['memory'][2] !== null)
{
// Determine colour of number or results.
$resultsReturned = $callStacks[$id][0]['memory'][2];
if ($resultsReturned > 3000)
{
$labelClass = 'label-important';
}
elseif ($resultsReturned > 1000)
{
$labelClass = 'label-warning';
}
elseif ($resultsReturned == 0)
{
$labelClass = '';
}
else
{
$labelClass = 'label-success';
}
$htmlResultsReturned = '<span class="label ' . $labelClass . '">' . (int) $resultsReturned . '</span>';
$htmlTiming .= ' <span class="dbg-query-rowsnumber">' . JText::sprintf('PLG_DEBUG_ROWS_RETURNED_BY_QUERY', $htmlResultsReturned) . '</span>';
}
}
$htmlTiming .= '</div>';
// Bar.
$htmlBar = $this->renderBars($bars, 'query', $id);