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<!DOCTYPE html>
<html>
<head>
<title>Journal</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<style type="text/css">
div#divlogs {
font-family: monospace;
font-size: 8pt;
background-color: #ffffff;
padding: 1em;
margin: 2em 0em;
border-radius: 10px 10px 10px 10px;
border: 1px solid threedshadow;
white-space: nowrap;
overflow-x: scroll;
}
body {
background-color: #ededed;
color: #313739;
font: message-box;
margin: 5em;
}
td.timestamp {
text-align: right;
border-right: 1px dotted lightgrey;
padding-right: 5px;
}
td.process {
border-right: 1px dotted lightgrey;
padding-left: 5px;
padding-right: 5px;
}
td.message {
padding-left: 5px;
}
td.message-error {
padding-left: 5px;
color: red;
font-weight: bold;
}
td.message-highlight {
padding-left: 5px;
font-weight: bold;
}
table#tablelogs {
border-collapse:collapse;
}
</style>
</head>
<body>
<!-- TODO:
- show red lines for reboots
- show contents of entries -->
<h1 id="title"></h1>
<div id="os"></div>
<div id="virtualization"></div>
<div id="cutoff"></div>
<div id="machine"></div>
<div id="usage"></div>
<div id="showing"></div>
<div id="divlogs"><table id="tablelogs"></table></div>
<form>
<input id="head" type="button" value="|<" onclick="entriesLoadHead();"/>
<input id="previous" type="button" value="<<" onclick="entriesLoadPrevious();"/>
<input id="next" type="button" value=">>" onclick="entriesLoadNext();"/>
<input id="tail" type="button" value=">|" onclick="entriesLoadTail();"/>
<input id="more" type="button" value="More" onclick="entriesMore();"/>
<input id="less" type="button" value="Less" onclick="entriesLess();"/>
</form>
<script type="text/javascript">
var first_cursor = null;
var last_cursor = null;
function setCookie(name, value, msec) {
var d = new Date();
d.setMilliseconds(d.getMilliseconds() + msec);
var v = escape(value) + "; expires=" + d.toUTCString();
document.cookie = name + "=" + value;
}
function getCookie(name) {
var i, l;
l = document.cookie.split(";");
for (i in l) {
var x, y, j;
j = l[i].indexOf("=");
x = l[i].substr(0, j);
y = l[i].substr(j+1);
if (x == name)
return unescape(y);
}
return null;
}
function getNEntries() {
var n;
n = getCookie("n_entries");
if (n == null)
return 50;
return parseInt(n);
}
function showNEntries(n) {
var showing = document.getElementById("showing");
showing.innerHTML = "Showing <b>" + n.toString() + "</b> entries.";
}
function setNEntries(n) {
if (n < 10)
n = 10;
else if (n > 1000)
n = 1000;
setCookie("n_entries", n.toString(), 30*24*60*60*1000);
showNEntries(n);
}
function machineLoad() {
var request = new XMLHttpRequest();
request.open("GET", "/machine");
request.onreadystatechange = machineOnResult;
request.setRequestHeader("Accept", "application/json");
request.send(null);
}
function formatBytes(u) {
if (u >= 1024*1024*1024*1024)
return (u/1024/1024/1024/1024).toFixed(1) + " TiB";
else if (u >= 1024*1024*1024)
return (u/1024/1024/1024).toFixed(1) + " GiB";
else if (u >= 1024*1024)
return (u/1024/1024).toFixed(1) + " MiB";
else if (u >= 1024)
return (u/1024).toFixed(1) + " KiB";
else
return u.toString() + " B";
}
function machineOnResult(event) {
if ((event.currentTarget.readyState != 4) ||
(event.currentTarget.status != 200 && event.currentTarget.status != 0))
return;
var d = JSON.parse(event.currentTarget.responseText);
var title = document.getElementById("title");
title.innerHTML = 'Journal of ' + d.hostname;
document.title = 'Journal of ' + d.hostname;
var machine = document.getElementById("machine");
machine.innerHTML = 'Machine ID is <b>' + d.machine_id + '</b>, current boot ID is <b>' + d.boot_id + '</b>.';
var cutoff = document.getElementById("cutoff");
var from = new Date(parseInt(d.cutoff_from_realtime) / 1000);
var to = new Date(parseInt(d.cutoff_to_realtime) / 1000);
cutoff.innerHTML = 'Journal begins at <b>' + from.toLocaleString() + '</b> and ends at <b>' + to.toLocaleString() + '</b>.';
var usage = document.getElementById("usage");
usage.innerHTML = 'Disk usage is <b>' + formatBytes(parseInt(d.usage)) + '</b>.';
var os = document.getElementById("os");
os.innerHTML = 'Operating system is <b>' + d.os_pretty_name + '</b>.';
var virtualization = document.getElementById("virtualization");
virtualization.innerHTML = d.virtualization == "bare" ? "Running on <b>bare metal</b>." : "Running on virtualization <b>" + d.virtualization + "</b>.";
}
function entriesLoad(range) {
var request = new XMLHttpRequest();
request.open("GET", "/entries");
request.onreadystatechange = entriesOnResult;
request.setRequestHeader("Accept", "application/json");
request.setRequestHeader("Range", "entries=" + range + ":" + getNEntries().toString());
request.send(null);
}
function entriesLoadNext() {
if (last_cursor == null)
entriesLoad("");
else
entriesLoad(last_cursor + ":1");
}
function entriesLoadPrevious() {
if (first_cursor == null)
entriesLoad("");
else
entriesLoad(first_cursor + ":-" + getNEntries().toString());
}
function entriesLoadHead() {
entriesLoad("");
}
function entriesLoadTail() {
entriesLoad(":-" + getNEntries().toString());
}
function entriesOnResult(event) {
if ((event.currentTarget.readyState != 4) ||
(event.currentTarget.status != 200 && event.currentTarget.status != 0))
return;
var logs = document.getElementById("tablelogs");
var lc = null;
var fc = null;
var i;
var l = event.currentTarget.responseText.split('\n');
if (l.length <= 1) {
logs.innerHTML = '<tbody><tr><td colspan="3"><i>No further entries...</i></td></tr></tbody>';
return;
}
var buf = '';
for (i in l) {
if (l[i] == '')
continue;
var d = JSON.parse(l[i]);
if (d.MESSAGE == undefined || d.__CURSOR == undefined)
continue;
if (fc == null)
fc = d.__CURSOR;
lc = d.__CURSOR;
var priority;
if (d.PRIORITY != undefined)
priority = parseInt(d.PRIORITY);
else
priority = 6;
if (priority <= 3)
clazz = "message-error";
else if (priority <= 5)
clazz = "message-highlight";
else
clazz = "message";
buf += '<tr><td class="timestamp">';
if (d.__REALTIME_TIMESTAMP != undefined) {
var timestamp = new Date(parseInt(d.__REALTIME_TIMESTAMP) / 1000);
buf += timestamp.toLocaleString();
}
buf += '</td><td class="process">';
if (d.SYSLOG_IDENTIFIER != undefined)
buf += d.SYSLOG_IDENTIFIER;
else if (d._COMM != undefined)
buf += d._COMM;
if (d._PID != undefined)
buf += "[" + d._PID + "]";
else if (d.SYSLOG_PID != undefined)
buf += "[" + d.SYSLOG_PID + "]";
buf += '</td><td class="' + clazz + '">';
if (d.MESSAGE == null)
buf += "[blob data]";
else if (d.MESSAGE instanceof Array)
buf += "[" + formatBytes(d.MESSAGE.length) + " blob data]";
else
buf += d.MESSAGE;
buf += '</td></tr>';
}
logs.innerHTML = buf + '</tbody>';
if (fc != null)
first_cursor = fc;
if (lc != null)
last_cursor = lc;
}
function entriesMore() {
setNEntries(getNEntries() + 10);
entriesLoad("");
}
function entriesLess() {
setNEntries(getNEntries() - 10);
entriesLoad("");
}
machineLoad();
entriesLoad("");
showNEntries(getNEntries());
</script>
</body>
</html>
|
