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chriskonnertz/logviewer.php

Created May 5, 2017 08:22
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Symfony/Monolog log viewer
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logviewer.php
<?php
// Default values:
$logFile = __DIR__.'/path-to-folder/logs/dev.log';
$maxLines = 100;
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Symfony Log Viewer</title>
<link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/framy/latest/css/framy.min.css">
<style>
body { padding: 40px; color: black }
form { margin-bottom: 40px; }
h1 { margin: 0px 0px 40px 0px }
.sidebar { float: left; width: 300px }
.content { margin-left: 340px }
@media (max-width: 1023px) {
.sidebar { float: none; width: 100% }
.content { margin-left: 0 }
}
.entry { margin: 20px 0px; padding: 10px; background-color: #EEE; cursor: pointer }
.entry.hidden { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.date-time { color: #666 }
.type { padding: 3px 5px; border-radius: 3px; font-weight: bold; background-color: #2f3241; color: white }
.type.debug { background-color: #4ce276 }
.type.info { background-color: #5bb8fd }
.type.notice { background-color: #f9d65e; }
.type.warning { background-color: #ff9900; }
.type.error { background-color: #f36362 }
.type.critical { background-color: #ff33cc }
.type.emergency { }
.message .bracket { color: #666 }
.meta { color: #666 }
</style>
<script src="https://code.jquery.com/jquery-3.1.0.min.js"></script>
</head>
<body>
<div class="sidebar">
<form action="" method="POST">
<h1>Log</h1>
<div class="form-element">
<label for="logfile">Path of log file</label>
<input type="text" name="logfile" id="logfile" class="form-field" value="<?php echo $_POST['logfile'] ?? $logFile ?>">
</div>
<div class="form-element">
<label for="max_lines">Process max. lines</label>
<input type="number" name="max_lines" id="max_lines" class="form-field" value="<?php echo $_POST['max_lines'] ?? $maxLines ?>">
</div>
<hr>
<div class="form-element filters">
<label>Level Filters</label>
<!-- According to https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md -->
<div class="columns">
<div class="lg-4">
<div class="checkbox-inline">
<input id="debug" name="debug" type="checkbox" <?php echo isset($_POST['debug']) ? 'checked="checked"' : '' ?>>
<label for="debug">Debug</label>
</div>
</div>
<div class="lg-4">
<div class="checkbox-inline">
<input id="info" name="info" type="checkbox" <?php echo isset($_POST['info']) ? 'checked="checked"' : '' ?>>
<label for="info">Info</label>
</div>
</div>
</div>
<div class="columns">
<div class="lg-4">
<div class="checkbox-inline">
<input id="notice" name="notice" type="checkbox" <?php echo isset($_POST['notice']) ? 'checked="checked"' : '' ?>>
<label for="notice">Notice</label>
</div>
</div>
<div class="lg-4">
<div class="checkbox-inline">
<input id="warning" name="warning" type="checkbox" <?php echo isset($_POST['warning']) ? 'checked="checked"' : '' ?>>
<label for="warning">Warning</label>
</div>
</div>
</div>
<div class="columns">
<div class="lg-4">
<div class="checkbox-inline">
<input id="error" name="error" type="checkbox" <?php echo isset($_POST['error']) ? 'checked="checked"' : '' ?>>
<label for="error">Error</label>
</div>
</div>
<div class="lg-4">
<div class="checkbox-inline">
<input id="critical" name="critical" type="checkbox" <?php echo isset($_POST['critical']) ? 'checked="checked"' : '' ?>>
<label for="critical">Critical</label>
</div>
</div>
</div>
<div class="columns">
<div class="lg-4">
<div class="checkbox-inline">
<input id="alert" name="alert" type="checkbox" <?php echo isset($_POST['alert']) ? 'checked="checked"' : '' ?>>
<label for="alert">Alert</label>
</div>
</div>
<div class="lg-4">
<div class="checkbox-inline">
<input id="emergency" name="emergency" type="checkbox" <?php echo isset($_POST['emergency']) ? 'checked="checked"' : '' ?>>
<label for="emergency">Emergency</label>
</div>
</div>
</div>
</div>
<hr>
<button class="button" type="submit" name="refresh" value="refresh" title="Reload the log file"><i class="icon icon-refresh"></i> Refresh</button>
<button class="button" tybe="button" name="show" value="show" title="Display the content of the log file without parsing"><i class="icon icon-eye"></i> Show</button>
<button class="button" type="submit" name="clear" value="clear" title="Delete the log file"><i class="icon icon-trash-a"></i> Clear</button>
</form>
</div>
<div class="content">
<div class="log">
<?php
$logFile = $_POST['logfile'] ?? $logFile;
$maxLines = $_POST['max_lines'] ?? $maxLines;
if ($logFile) {
if (! file_exists($logFile)) {
die('Log file does not exist.');
}
if (isset($_POST['clear'])) {
unlink($logFile);
} else {
$lines = file($logFile);
if (isset($_POST['show'])) {
echo '<pre>';
foreach ($lines as $line) {
echo $line.'<br>';
}
echo '</pre><hr>';
}
$dateLength = strlen('[yyyy-mm-dd hh:mm:ss] ');
$lineNumber = 0;
foreach ($lines as $line) {
$lineNumber++;
$dateTime = substr($line, 0, $dateLength);
$line = substr($line, $dateLength);
$pos = strpos($line, ':');
$type = substr($line, 0, $pos);
$line = substr($line, $pos + 1);
$pos = strpos($type, '.');
$level = strtolower(substr($type, $pos + 1));
$line = str_replace('{', '<span class="bracket">{', $line);
$line = str_replace('}', '}</span>', $line);
echo '<div class="entry hidden">';
echo '<span class="date-time">' . $dateTime . '</span> ';
echo '<span class="type ' . $level . '">' . $type . '</span> ';
echo '<span class="message">' . $line . '</span>';
echo '</div>';
if ($lineNumber >= $maxLines) {
break;
}
}
echo '<small class="meta">Logfile <em>'.$logFile.'</em> with '.sizeof($lines).' lines and '.filesize($logFile).' Bytes total</small>';
}
}
?>
</div>
</div>
<script>
(function()
{
$('form').submit(function(event)
{
if (event.originalEvent && event.originalEvent.explicitOriginalTarget && event.originalEvent.explicitOriginalTarget.name == 'clear') {
var clear = confirm('Logdatei leeren?');
if (! clear) {
event.preventDefault();
return false;
}
}
});
$('.entry').click(function()
{
$(this).toggleClass('hidden');
});
var applyFilters = function()
{
var filters = new Array();
$('.filters input').each(function()
{
if (this.checked) {
filters.push($(this).attr('name'));
}
});
$('.entry').hide();
$('.entry').each(function()
{
var $entry = $(this);
var $type = $entry.find('.type');
filters.forEach(function(level)
{
if ($type.hasClass(level)) {
$entry.show();
}
});
});
};
applyFilters();
$('.filters input').click(applyFilters);
})();
</script>
</body>
</html>
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