wpbullet · March 23, 2017 18:29
diff --git a/logs-viewer.php b/logs-viewer.php
 <!DOCTYPE html> <html lang="en"> <head>
 	<meta charset="UTF-8">
 	<meta name="viewport" content="width=device-width, initial-scale=1.0">
 	<meta http-equiv="X-UA-Compatible" content="ie=edge">
 	<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/themes/default/style.min.css" />
 	<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.10.0/styles/default.min.css">
 	<title>Logs Viewer</title>
 	<style media="screen">
 		body {
 			font-family: sans-serif;
 		}
 		.log_container {
 			display: flex;
 		}
 		.log_menu {
 			width: 350px;
 		}
 		.left-menu {
 			bottom: 0;
 			height: 100%;
 			overflow: scroll;
 			position: fixed;
 			top: 0;
 			width: 350px;
 		}
 		.log_content {
 			margin: 0 auto;
 			height: 100vh;
 			width: calc( 100% - 550px );
 		}
 		.log_code {
 			font-size: 14px;
 			line-height: 2em;
 		}
 		.jstree-default .jstree-leaf .jstree-themeicon {
 		    background-position: -102px -68px;
 		}
 		.hljs {
 			height: calc( 100vh - 300px );
 		}
 		.accesslog ol {
 		    padding: 0 10px;
 		}
 	</style> </head> <body>
 	<?php
 		define( 'LOG_PATH', '/var/log/' );
 		define('DISPLAY_REVERSE',true);
 		define( 'DIRECTORY_SEPARATOR', '/' );
 		function get_log_files( $dir, &$results = array() ) {
 			$files = scandir( $dir );
 			foreach ( $files as $key => $file ) {
 				$path = realpath( $dir.DIRECTORY_SEPARATOR.$file );
 				if ( ! is_dir( $path ) ) {
 					$files_list[] = $path;
 				} elseif ( $file != "." && $file != ".." ) {
 					$dirs_list[] = $path;
 				}
 			}
 			foreach ( $files_list as $path ) {
 				preg_match( "/^.*\/(\S+)$/", $path, $matches );
 				$name = $matches[ 1 ];
 				$results[ $dir ][ $name ] = array( 'name' => $name, 'path' => $path );
 			}
 			foreach ( $dirs_list as $path ) {
 				get_log_files( $path, $results );
 			}
 			return $results;
 		}
 		$files = get_log_files( LOG_PATH );
 		ksort( $files );
 		foreach ( $files as $dir_name => $file_array ) {
 			ksort( $file_array );
 			foreach ( $file_array as $key => $val ) {
 				$default = $key;
 				$log_files[ $key ] = $val;
 			}
 		}
 		$log = (!isset($_GET['p'])) ? $default : urldecode($_GET['p']);
 		$lines = (!isset($_GET['lines'])) ? '50': $_GET['lines'];
 		//$file = $log_files[$log]['path'];
 		$file = $log;
 		$title = substr($log, (strrpos($log, '/')+1));
 		function tail($filename, $lines = 50, $buffer = 4096) {
 			$output = '';
 			$chunk = '';
 			if ( 'gz' == substr( $filename, -2 ) ) {
 				$gz = gzopen( $filename, "rb" );
 				gzseek( $gz, -1, SEEK_END );
 				if ( gzread( $gz, 10000 ) != "\n" ) $lines -= 1;
 				while( gztell( $gz ) > 0 && $lines >= 0 ) {
 					// Figure out how far back we should jump
 					$seek = min( gztell( $gz ), $buffer );
 					// Do the jump (backwards, relative to where we are)
 					gzseek( $gz, -$seek, SEEK_CUR );
 					// Read a chunk and prepend it to our output
 					$output = ( $chunk = gzread( $gz, $seek ) ) . $output;
 					// Jump back to where we started reading
 					gzseek( $gz, -mb_strlen( $chunk, '8bit' ), SEEK_CUR );
 					// Decrease our line counter
 					$lines -= substr_count( $chunk, "\n" );
 				}
 			} else {
 				$f = fopen( $filename, "rb" );
 				fseek( $f, -1, SEEK_END );
 				if ( fread( $f, 1 ) != "\n" ) $lines -= 1;
 				while( ftell( $f ) > 0 && $lines >= 0 ) {
 					// Figure out how far back we should jump
 					$seek = min( ftell( $f ), $buffer );
 					// Do the jump (backwards, relative to where we are)
 					fseek( $f, -$seek, SEEK_CUR );
 					// Read a chunk and prepend it to our output
 					$output = ( $chunk = fread( $f, $seek ) ) . $output;
 					// Jump back to where we started reading
 					fseek( $f, -mb_strlen( $chunk, '8bit' ), SEEK_CUR );
 					// Decrease our line counter
 					$lines -= substr_count( $chunk, "\n" );
 				}
 			}
 			while( $lines++ < 0 ) {
 				// Find first newline and remove all text before that
 				$output = substr( $output, strpos( $output, "\n" ) + 1 );
 			}
 			if ( 'gz' == substr( $filename, -2 ) ) {
 				gzclose( $gz );
 			} else {
 				fclose( $f );
 			}
 			// Close file and return
 			return $output;
 		}
 	?>
 	<div class="log_container">
 		<div class="log_menu">
 			<div id="tree_container" class="left-menu">
 				<ul>
 				<?php
 					$current_file = isset($_GET['k']) ? $_GET['k'] : '';
 					// Generate a menu
 					foreach ( $files as $dir => $files_array ) {

 						if ( isset( $files_array[$current_file] ) ) {
 							echo '<li class="jstree-open">' . $dir;
 						}else{
 							echo '<li>' . $dir;
 						}
 						echo '<ul>';
 						foreach( $files_array as $k => $f ) {
 							if ( ! is_file( $f['path'] ) ){
 								// File does not exist, remove it from the array, so it does not appear in the menu.
 								unset( $files_array[ $k ] );
 								continue;
 							}
 							$active = ( $f['path'] == $log ) ? 'class="jstree-clicked"' : '';
 							echo '<li class="file"><a ' . $active . ' href="?p=' . urlencode( $f['path'] ) . '&lines=' . $lines . '&k='.$k.'">' . $f['name'] . 
 '</a></li>';
 						}
 						echo '</ul>';
 						echo '</li>';
 					}
 					?>
 				</ul>
 			</div>
 		</div>
 		<div class="log_content">
 			<div class="log_header">
 				<h1><?php echo $title;?></h1>
 				<h2>The last <?php echo $lines ?> lines of <?php echo $file ?>.</h2>
 				<p>How many lines to display?</p>
 				<form action="" method="get">
 					<input type="hidden" name="p" value="<?php echo $log ?>">
 					<select name="lines" onchange="this.form.submit()">
 						<option value="10" <?php echo ($lines=='10') ? 'selected':'' ?>>10</option>
 						<option value="50" <?php echo ($lines=='50') ? 'selected':'' ?>>50</option>
 						<option value="100" <?php echo ($lines=='100') ? 'selected':'' ?>>100</option>
 						<option value="500" <?php echo ($lines=='500') ? 'selected':'' ?>>500</option>
 						<option value="1000" <?php echo ($lines=='1000') ? 'selected':'' ?>>1000</option>
 					</select>
 				</form>
 			</div>
 			<div class="log_code">
 				<pre>
 					<code class="accesslog">
 						<ol reversed>
 							<?php
 								$output = tail( $file, $lines );
 								$output = explode( "\n", $output );
 								if ( DISPLAY_REVERSE ) {
 									// Latest first
 									$output = array_reverse( $output );
 								}
 								$output = implode( '<br>', $output );
 								echo $output;
 							?>
 						</ol>
 					</code>
 				</pre>
 			</div>
 		</div>
 	</div>
 	<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.0/jquery.min.js"></script>
 	<script src="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.3.3/jstree.min.js"></script>
 	<script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.8.0/highlight.min.js"></script>
 	<script src="http://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.4.0/languages/accesslog.min.js"></script>
 	<script type="text/javascript">
 		$(document).ready(function() {
 			$('#tree_container').jstree().bind('select_node.jstree', function(e, data) {
 				var href = data.node.a_attr.href;
 				document.location.href = href;
 			});
 		});
 		hljs.initHighlightingOnLoad();
 	</script> </body> </html>
	<!DOCTYPE html> <html lang="en"> <head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<meta http-equiv="X-UA-Compatible" content="ie=edge">
	<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/themes/default/style.min.css" />
	<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.10.0/styles/default.min.css">
	<title>Logs Viewer</title>
	<style media="screen">
	body {
	font-family: sans-serif;
	}
	.log_container {
	display: flex;
	}
	.log_menu {
	width: 350px;
	}
	.left-menu {
	bottom: 0;
	height: 100%;
	overflow: scroll;
	position: fixed;
	top: 0;
	width: 350px;
	}
	.log_content {
	margin: 0 auto;
	height: 100vh;
	width: calc( 100% - 550px );
	}
	.log_code {
	font-size: 14px;
	line-height: 2em;
	}
	.jstree-default .jstree-leaf .jstree-themeicon {
	background-position: -102px -68px;
	}
	.hljs {
	height: calc( 100vh - 300px );
	}
	.accesslog ol {
	padding: 0 10px;
	}
	</style> </head> <body>
	<?php
	define( 'LOG_PATH', '/var/log/' );
	define('DISPLAY_REVERSE',true);
	define( 'DIRECTORY_SEPARATOR', '/' );
	function get_log_files( $dir, &$results = array() ) {
	$files = scandir( $dir );
	foreach ( $files as $key => $file ) {
	$path = realpath( $dir.DIRECTORY_SEPARATOR.$file );
	if ( ! is_dir( $path ) ) {
	$files_list[] = $path;
	} elseif ( $file != "." && $file != ".." ) {
	$dirs_list[] = $path;
	}
	}
	foreach ( $files_list as $path ) {
	preg_match( "/^.*\/(\S+)$/", $path, $matches );
	$name = $matches[ 1 ];
	$results[ $dir ][ $name ] = array( 'name' => $name, 'path' => $path );
	}
	foreach ( $dirs_list as $path ) {
	get_log_files( $path, $results );
	}
	return $results;
	}
	$files = get_log_files( LOG_PATH );
	ksort( $files );
	foreach ( $files as $dir_name => $file_array ) {
	ksort( $file_array );
	foreach ( $file_array as $key => $val ) {
	$default = $key;
	$log_files[ $key ] = $val;
	}
	}
	$log = (!isset($_GET['p'])) ? $default : urldecode($_GET['p']);
	$lines = (!isset($_GET['lines'])) ? '50': $_GET['lines'];
	//$file = $log_files[$log]['path'];
	$file = $log;
	$title = substr($log, (strrpos($log, '/')+1));
	function tail($filename, $lines = 50, $buffer = 4096) {
	$output = '';
	$chunk = '';
	if ( 'gz' == substr( $filename, -2 ) ) {
	$gz = gzopen( $filename, "rb" );
	gzseek( $gz, -1, SEEK_END );
	if ( gzread( $gz, 10000 ) != "\n" ) $lines -= 1;
	while( gztell( $gz ) > 0 && $lines >= 0 ) {
	// Figure out how far back we should jump
	$seek = min( gztell( $gz ), $buffer );
	// Do the jump (backwards, relative to where we are)
	gzseek( $gz, -$seek, SEEK_CUR );
	// Read a chunk and prepend it to our output
	$output = ( $chunk = gzread( $gz, $seek ) ) . $output;
	// Jump back to where we started reading
	gzseek( $gz, -mb_strlen( $chunk, '8bit' ), SEEK_CUR );
	// Decrease our line counter
	$lines -= substr_count( $chunk, "\n" );
	}
	} else {
	$f = fopen( $filename, "rb" );
	fseek( $f, -1, SEEK_END );
	if ( fread( $f, 1 ) != "\n" ) $lines -= 1;
	while( ftell( $f ) > 0 && $lines >= 0 ) {
	// Figure out how far back we should jump
	$seek = min( ftell( $f ), $buffer );
	// Do the jump (backwards, relative to where we are)
	fseek( $f, -$seek, SEEK_CUR );
	// Read a chunk and prepend it to our output
	$output = ( $chunk = fread( $f, $seek ) ) . $output;
	// Jump back to where we started reading
	fseek( $f, -mb_strlen( $chunk, '8bit' ), SEEK_CUR );
	// Decrease our line counter
	$lines -= substr_count( $chunk, "\n" );
	}
	}
	while( $lines++ < 0 ) {
	// Find first newline and remove all text before that
	$output = substr( $output, strpos( $output, "\n" ) + 1 );
	}
	if ( 'gz' == substr( $filename, -2 ) ) {
	gzclose( $gz );
	} else {
	fclose( $f );
	}
	// Close file and return
	return $output;
	}
	?>
	<div class="log_container">
	<div class="log_menu">
	<div id="tree_container" class="left-menu">
	<ul>
	<?php
	$current_file = isset($_GET['k']) ? $_GET['k'] : '';
	// Generate a menu
	foreach ( $files as $dir => $files_array ) {

	if ( isset( $files_array[$current_file] ) ) {
	echo '<li class="jstree-open">' . $dir;
	}else{
	echo '<li>' . $dir;
	}
	echo '<ul>';
	foreach( $files_array as $k => $f ) {
	if ( ! is_file( $f['path'] ) ){
	// File does not exist, remove it from the array, so it does not appear in the menu.
	unset( $files_array[ $k ] );
	continue;
	}
	$active = ( $f['path'] == $log ) ? 'class="jstree-clicked"' : '';
	echo '<li class="file"><a ' . $active . ' href="?p=' . urlencode( $f['path'] ) . '&lines=' . $lines . '&k='.$k.'">' . $f['name'] .
	'</a></li>';
	}
	echo '</ul>';
	echo '</li>';
	}
	?>
	</ul>
	</div>
	</div>
	<div class="log_content">
	<div class="log_header">
	<h1><?php echo $title;?></h1>
	<h2>The last <?php echo $lines ?> lines of <?php echo $file ?>.</h2>
	<p>How many lines to display?</p>
	<form action="" method="get">
	<input type="hidden" name="p" value="<?php echo $log ?>">
	<select name="lines" onchange="this.form.submit()">
	<option value="10" <?php echo ($lines=='10') ? 'selected':'' ?>>10</option>
	<option value="50" <?php echo ($lines=='50') ? 'selected':'' ?>>50</option>
	<option value="100" <?php echo ($lines=='100') ? 'selected':'' ?>>100</option>
	<option value="500" <?php echo ($lines=='500') ? 'selected':'' ?>>500</option>
	<option value="1000" <?php echo ($lines=='1000') ? 'selected':'' ?>>1000</option>
	</select>
	</form>
	</div>
	<div class="log_code">
	<pre>
	<code class="accesslog">
	<ol reversed>
	<?php
	$output = tail( $file, $lines );
	$output = explode( "\n", $output );
	if ( DISPLAY_REVERSE ) {
	// Latest first
	$output = array_reverse( $output );
	}
	$output = implode( '<br>', $output );
	echo $output;
	?>
	</ol>
	</code>
	</pre>
	</div>
	</div>
	</div>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.0/jquery.min.js"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.3.3/jstree.min.js"></script>
	<script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.8.0/highlight.min.js"></script>
	<script src="http://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.4.0/languages/accesslog.min.js"></script>
	<script type="text/javascript">
	$(document).ready(function() {
	$('#tree_container').jstree().bind('select_node.jstree', function(e, data) {
	var href = data.node.a_attr.href;
	document.location.href = href;
	});
	});
	hljs.initHighlightingOnLoad();
	</script> </body> </html>