<?php
/**
 * @package   akeebabackup
 * @copyright Copyright (c)2006-2019 Nicholas K. Dionysopoulos / Akeeba Ltd
 * @license   GNU General Public License version 3, or later
 */

// Protect from unauthorized access
defined('_JEXEC') or die();

/** @var Throwable $e */
/** @var string $title */
/** @var bool $isPro */

$code         = $e->getCode();
$code         = !empty($code) ? $code : 500;
$app          = \JFactory::getApplication();
$isFrontend   = $app instanceof JApplicationSite;
$hideTheError = $isFrontend && !(defined('JDEBUG') && (JDEBUG == 1)) && !JFactory::getUser()->authorise('core.admin');
$isPro        = !isset($isPro) ? false : $isPro;

// 403 and 404 are re-thrown
if (in_array($code, [403, 404]))
{
	throw $e;
}

if (version_compare(JVERSION, '4', 'lt'))
{
	$app->setHeader('HTTP/1.1', $code);
}
else
{
	// In Joomla 4 we have to use the "Status" header, otherwise we get a fatal error saying that
	// HTTP/1.1 is not a valid header
	$app->setHeader('Status', $code);
}

if (!$isFrontend)
{
	JToolbarHelper::title($title . ' <small>Unhandled Exception</small>');
}

?>

<?php if ($hideTheError): ?>
    <h1>The application has stopped responding</h1>
    <p>
        Please contact the administrator of the site and let them know of this error and what you were doing when this happened.
    </p>
	<?php return true; endif; ?>

<h1><?php echo $title ?> - An unhandled Exception has been detected</h1>
<h4>
    <span class="label label-danger"><?php echo htmlentities($code) ?></span> <?php echo htmlentities($e->getMessage()) ?>
</h4>
<p>
    File <code><?php echo htmlentities(str_ireplace(JPATH_ROOT, '&lt;root&gt;', $e->getFile())) ?></code>
    Line <span class="label label-info"><?php echo (int) $e->getLine() ?></span>
</p>

<?php if ($isPro): ?>
    <div class="hero-unit">
        <p>
            <strong>Would you like us to help you faster?</strong>
        </p>
        <p>
            Save this page as PDF or HTML. When filing a support ticket please attach that PDF or HTML file.
        </p>
    </div>
    <p>
        <strong>Why do we need all that information?</strong> This information is an x-ray of your site at the time the error
        occurred. It lets us reproduce the issue or, if it's not a bug in our software, help you pinpoint the external reason which
        led to it.
    </p>
    <p>
        <strong>What about privacy?</strong>
        Attachments are private in our ticket system: only you and us can see them, <em>even if you file a public ticket</em>, and
        they are automatically deleted after a month.
    </p>
<?php endif; ?>

<hr />
<p>
    <span class="icon icon-warning-2"></span>
    <em>
        The content below this point is for developers and power users.
    </em>
</p>
<hr/>

<h3>Debug information</h3>
<p>
    Exception type: <code><?php echo htmlentities(get_class($e)) ?></code>
</p>
<pre><?php echo htmlentities($e->getTraceAsString()) ?></pre>

<h3>System information</h3>
<table class="table table-striped">
    <tr>
        <td>Operating System (reported by PHP)</td>
        <td><?php echo PHP_OS ?></td>
    </tr>
    <tr>
        <td>PHP version (as reported <em>by your server</em>)</td>
        <td><?php echo PHP_VERSION ?></td>
    </tr>
    <tr>
        <td>PHP Built On</td>
        <td><?php echo htmlentities(php_uname()); ?></td>
    </tr>
    <tr>
        <td>PHP SAPI</td>
        <td><?php echo PHP_SAPI ?></td>
    </tr>
    <tr>
        <td>Server identity</td>
        <td><?php echo htmlentities(isset($_SERVER['SERVER_SOFTWARE']) ? $_SERVER['SERVER_SOFTWARE'] : getenv('SERVER_SOFTWARE')) ?></td>
    </tr>
    <tr>
        <td>Browser identity</td>
        <td><?php echo htmlentities(isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : '') ?></td>
    </tr>
    <tr>
        <td>Joomla! version</td>
        <td><?php echo JVERSION ?></td>
    </tr>
    <tr>
        <td>Database driver name</td>
        <td><?php echo JFactory::getDbo()->getName() ?></td>
    </tr>
    <tr>
        <td>Database driver type</td>
        <td><?php echo JFactory::getDbo()->getServerType() ?></td>
    </tr>
    <tr>
        <td>Database server version</td>
        <td><?php echo JFactory::getDbo()->getVersion() ?></td>
    </tr>
    <tr>
        <td>Database collation</td>
        <td><?php echo JFactory::getDbo()->getCollation()?></td>
    </tr>
    <tr>
        <td>Database connection collation</td>
        <td><?php echo JFactory::getDbo()->getConnectionCollation()?></td>
    </tr>
    <tr>
        <td>PHP Memory limit</td>
        <td><?php echo function_exists('ini_get') ? htmlentities(ini_get('memory_limit')) : 'N/A' ?></td>
    </tr>
    <tr>
        <td>Peak Memory usage</td>
        <td><?php echo function_exists('memory_get_peak_usage') ? sprintf('%0.2fM', (memory_get_peak_usage() / 1024 / 1024)) : 'N/A' ?></td>
    </tr>
    <tr>
        <td>PHP Timeout (seconds)</td>
        <td><?php echo function_exists('ini_get') ? htmlentities(ini_get('max_execution_time')) : 'N/A' ?></td>
    </tr>
</table>

<h3>Request information</h3>
<h4>$_GET</h4>
<pre><?php echo htmlentities(print_r($_GET, true)) ?></pre>
<h4>$_POST</h4>
<pre><?php echo htmlentities(print_r($_POST, true)) ?></pre>
<h4>$_COOKIE</h4>
<pre><?php echo htmlentities(print_r($_COOKIE, true)) ?></pre>
<h4>$_REQUEST</h4>
<pre><?php echo htmlentities(print_r($_REQUEST, true)) ?></pre>

<h3>Session state</h3>
<pre><?php
	if (version_compare(JVERSION, '4', 'lt'))
	{
		echo htmlentities(print_r($app->getSession()->getData()->toArray(), true));
	}
	else
	{
		echo htmlentities(print_r($app->getSession()->all(), true));
	}
	?></pre>

<?php
if (!include_once (JPATH_ADMINISTRATOR . '/components/com_admin/models/sysinfo.php')) return;
$model = new AdminModelSysInfo();
$directories = $model->getDirectory();
try
{
	$extensions = $model->getExtensions();
}
catch (Exception $e)
{
	$extension = [];
}
$phpSettings = $model->getPhpSettings();
$hasPHPInfo = $model->phpinfoEnabled();
?>

<h3>PHP Settings</h3>
<table class="table table-striped">
	<?php foreach ($phpSettings as $k => $v): ?>
        <tr>
            <td><?php echo $k ?></td>
            <td><?php echo htmlentities(print_r($v, true)) ?></td>
        </tr>
	<?php endforeach; ?>
</table>

<?php if($hasPHPInfo):
	$phpInfo = $model->getPhpInfoArray(); ?>
    <h3>Loaded PHP Extensions</h3>
    <table class="table table-striped">
		<?php foreach($phpInfo as $section => $data):
			if ($section == 'Core') continue; ?>
            <tr>
                <td><?php echo htmlentities($section) ?></td>
                <td>
					<?php if (in_array($section, array('curl', 'openssl', 'ssh2', 'ftp', 'session', 'tokenizer'))): ?>
                        <pre><?php echo htmlentities(print_r($data, true)) ?></pre>
					<?php endif;?>
                </td>
            </tr>
		<?php endforeach; ?>
    </table>
<?php endif; ?>

<h3>Enabled Extensions</h3>
<table class="table table-striped">
	<?php foreach ($extensions as $extension => $info):
		if (strtoupper($info['state']) != 'ENABLED') continue; ?>
        <tr>
            <td><?php echo htmlentities($extension) ?></td>
            <td><?php echo htmlentities($info['version']) ?></td>
            <td><?php echo htmlentities($info['type']) ?></td>
            <td><?php echo htmlentities($info['author']) ?></td>
            <td><?php echo htmlentities($info['authorUrl']) ?></td>
        </tr>
	<?php endforeach; ?>
</table>

<h3>Directory Status</h3>
<table class="table table-striped">
	<?php foreach ($directories as $k => $v): ?>
        <tr>
            <td>
				<?php echo htmlentities($k) ?>
				<?php echo !empty($v['message']) ? "[{$v['message']}]" : '' ?>
            </td>
            <td>
				<?php if ($v['writable']): ?>
                    <span class="label label-success">Writeable</span>
				<?php else: ?>
                    <span class="label label-danger">Unwriteable</span>
				<?php endif; ?>
            </td>
        </tr>
	<?php endforeach; ?>
</table>
