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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" >
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div#divlogs, div#diventry {
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font-family: monospace;
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font-size: 7pt;
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background-color: #ffffff;
padding: 1em;
margin: 2em 0em;
border-radius: 10px 10px 10px 10px;
border: 1px solid threedshadow;
white-space: nowrap;
overflow-x: scroll;
}
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div#diventry {
display: none;
}
div#divlogs {
display: block;
}
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body {
background-color: #ededed;
color: #313739;
font: message-box;
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margin: 3em;
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}
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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;
}
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td.message > a:link, td.message > a:visited {
text-decoration: none;
color: #313739;
}
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td.message-error {
padding-left: 5px;
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color: red;
font-weight: bold;
}
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td.message-error > a:link, td.message-error > a:visited {
text-decoration: none;
color: red;
}
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td.message-highlight {
padding-left: 5px;
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font-weight: bold;
}
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td.message-highlight > a:link, td.message-highlight > a:visited {
text-decoration: none;
color: #313739;
}
td > a:hover, td > a:active {
text-decoration: underline;
color: #c13739;
}
table#tablelogs, table#tableentry {
border-collapse: collapse;
}
td.field {
text-align: right;
border-right: 1px dotted lightgrey;
padding-right: 5px;
}
td.data {
padding-left: 5px;
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}
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div#keynav {
text-align: center;
font-size: 7pt;
color: #818789;
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padding-top: 2em;
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}
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span.key {
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font-weight: bold;
color: #313739;
}
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div#buttonnav {
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text-align: center;
}
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button {
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font-size: 18pt;
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font-weight: bold;
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width: 2em;
height: 2em;
}
div#filternav {
text-align: center;
}
select {
width: 50em;
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}
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< / style >
< / head >
< body >
<!-- TODO:
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- live display
- show red lines for reboots -->
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< 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 >
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< div id = "filternav" >
< select id = "filter" onchange = "onFilterChange(this);" onfocus = "onFilterFocus(this);" >
< option > No filter< / option >
< / select >
< input id = "boot" type = "checkbox" onchange = "onBootChange(this);" > Only current boot< / input >
< / div >
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< div id = "divlogs" > < table id = "tablelogs" > < / table > < / div >
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< a name = "entry" > < / a >
< div id = "diventry" > < table id = "tableentry" > < / table > < / div >
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< div id = "buttonnav" >
< button id = "head" onclick = "entriesLoadHead();" title = "First Page" > ⇤ < / button >
< button id = "previous" type = "button" onclick = "entriesLoadPrevious();" title = "Previous Page" / > ← < / button >
< button id = "next" type = "button" onclick = "entriesLoadNext();" title = "Next Page" / > → < / button >
< button id = "tail" type = "button" onclick = "entriesLoadTail();" title = "Last Page" / > ⇥ < / button >
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< button id = "more" type = "button" onclick = "entriesMore();" title = "More Entries" / > +< / button >
< button id = "less" type = "button" onclick = "entriesLess();" title = "Fewer Entries" / > -< / button >
< / div >
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< div id = "keynav" >
< span class = "key" > g< / span > : First Page
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< span class = "key" > ← , k, BACKSPACE< / span > : Previous Page
< span class = "key" > → , j, SPACE< / span > : Next Page
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< span class = "key" > G< / span > : Last Page
< span class = "key" > +< / span > : More entries
< span class = "key" > -< / span > : Fewer entries
< / div >
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< script type = "text/javascript" >
var first_cursor = null;
var last_cursor = null;
function getNEntries() {
var n;
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n = localStorage["n_entries"];
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if (n == null)
return 50;
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n = parseInt(n);
if (n < 10 )
return 10;
if (n > 1000)
return 1000;
return n;
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}
function showNEntries(n) {
var showing = document.getElementById("showing");
showing.innerHTML = "Showing < b > " + n.toString() + "< / b > entries.";
}
function setNEntries(n) {
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if (n < 10 )
return 10;
if (n > 1000)
return 1000;
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localStorage["n_entries"] = n.toString();
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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";
}
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function escapeHTML(s) {
return s.replace(/& /g, "& ").replace(/< /g, "< ").replace(/>/g, "> ");
}
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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");
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title.innerHTML = 'Journal of ' + escapeHTML(d.hostname);
document.title = 'Journal of ' + escapeHTML(d.hostname);
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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");
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os.innerHTML = 'Operating system is < b > ' + escapeHTML(d.os_pretty_name) + '< / b > .';
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var virtualization = document.getElementById("virtualization");
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virtualization.innerHTML = d.virtualization == "bare" ? "Running on < b > bare metal< / b > ." : "Running on virtualization < b > " + escapeHTML(d.virtualization) + "< / b > .";
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}
function entriesLoad(range) {
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if (range == null)
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range = localStorage["cursor"] + ":0";
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if (range == null)
range = "";
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var url = "/entries";
if (localStorage["filter"] != "" & & localStorage["filter"] != null) {
url += "?_SYSTEMD_UNIT=" + escape(localStorage["filter"]);
if (localStorage["boot"] == "1")
url += "&boot";
} else {
if (localStorage["boot"] == "1")
url += "?boot";
}
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var request = new XMLHttpRequest();
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request.open("GET", url);
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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;
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var logs = document.getElementById("tablelogs");
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var lc = null;
var fc = null;
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var i, l = event.currentTarget.responseText.split('\n');
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if (l.length < = 1) {
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logs.innerHTML = '< tbody > < tr > < td colspan = "3" > < i > No further entries...< / i > < / td > < / tr > < / tbody > ';
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return;
}
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var buf = '';
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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)
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clazz = "message-error";
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else if (priority < = 5)
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clazz = "message-highlight";
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else
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clazz = "message";
buf += '< tr > < td class = "timestamp" > ';
if (d.__REALTIME_TIMESTAMP != undefined) {
var timestamp = new Date(parseInt(d.__REALTIME_TIMESTAMP) / 1000);
buf += timestamp.toLocaleString();
}
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buf += '< / td > < td class = "process" > ';
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if (d.SYSLOG_IDENTIFIER != undefined)
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buf += escapeHTML(d.SYSLOG_IDENTIFIER);
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else if (d._COMM != undefined)
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buf += escapeHTML(d._COMM);
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if (d._PID != undefined)
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buf += "[" + escapeHTML(d._PID) + "]";
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else if (d.SYSLOG_PID != undefined)
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buf += "[" + escapeHTML(d.SYSLOG_PID) + "]";
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buf += '< / td > < td class = "' + clazz + '" > < a href = "#entry" onclick = "onMessageClick(\'' + d.__CURSOR + '\');" > ';
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if (d.MESSAGE == null)
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buf += "[blob data]";
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else if (d.MESSAGE instanceof Array)
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buf += "[" + formatBytes(d.MESSAGE.length) + " blob data]";
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else
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buf += escapeHTML(d.MESSAGE);
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buf += '< / a > < / td > < / tr > ';
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}
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logs.innerHTML = '< tbody > ' + buf + '< / tbody > ';
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if (fc != null) {
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first_cursor = fc;
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localStorage["cursor"] = fc;
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}
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if (lc != null)
last_cursor = lc;
}
function entriesMore() {
setNEntries(getNEntries() + 10);
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entriesLoad(first_cursor);
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}
function entriesLess() {
setNEntries(getNEntries() - 10);
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entriesLoad(first_cursor);
}
function onResultMessageClick(event) {
if ((event.currentTarget.readyState != 4) ||
(event.currentTarget.status != 200 & & event.currentTarget.status != 0))
return;
var d = JSON.parse(event.currentTarget.responseText);
document.getElementById("diventry").style.display = "block";
entry = document.getElementById("tableentry");
var buf = "";
for (var key in d){
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var data = d[key];
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if (data == null)
data = "[blob data]";
else if (data instanceof Array)
data = "[" + formatBytes(data.length) + " blob data]";
else
data = escapeHTML(data);
buf += '< tr > < td class = "field" > ' + key + '< / td > < td class = "data" > ' + data + '< / td > < / tr > ';
}
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entry.innerHTML = '< tbody > ' + buf + '< / tbody > ';
}
function onMessageClick(t) {
var request = new XMLHttpRequest();
request.open("GET", "/entries?discrete");
request.onreadystatechange = onResultMessageClick;
request.setRequestHeader("Accept", "application/json");
request.setRequestHeader("Range", "entries=" + t + ":0:1");
request.send(null);
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}
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function onKeyUp(event) {
switch (event.keyCode) {
case 8:
case 37:
case 75:
entriesLoadPrevious();
break;
case 32:
case 39:
case 74:
entriesLoadNext();
break;
case 71:
if (event.shiftKey)
entriesLoadTail();
else
entriesLoadHead();
break;
case 171:
entriesMore();
break;
case 173:
entriesLess();
break;
}
}
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function onMouseWheel(event) {
if (event.detail < 0 | | event . wheelDelta > 0)
entriesLoadPrevious();
else
entriesLoadNext();
}
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function onResultFilterFocus(event) {
if ((event.currentTarget.readyState != 4) ||
(event.currentTarget.status != 200 & & event.currentTarget.status != 0))
return;
f = document.getElementById("filter");
var l = event.currentTarget.responseText.split('\n');
var buf = '< option > No filter< / option > ';
var j = -1;
for (i in l) {
if (l[i] == '')
continue;
var d = JSON.parse(l[i]);
if (d._SYSTEMD_UNIT == undefined)
continue;
buf += '< option value = "' + escape(d._SYSTEMD_UNIT) + '" > ' + escapeHTML(d._SYSTEMD_UNIT) + '< / option > ';
if (d._SYSTEMD_UNIT == localStorage["filter"])
j = i;
}
if (j < 0 ) {
if (localStorage["filter"] != null & & localStorage["filter"] != "") {
buf += '< option value = "' + escape(localStorage[" filter " ] ) + ' " > ' + escapeHTML(localStorage["filter"]) + '< / option > ';
j = i + 1;
} else
j = 0;
}
f.innerHTML = buf;
f.selectedIndex = j;
}
function onFilterFocus(w) {
var request = new XMLHttpRequest();
request.open("GET", "/fields/_SYSTEMD_UNIT");
request.onreadystatechange = onResultFilterFocus;
request.setRequestHeader("Accept", "application/json");
request.send(null);
}
function onFilterChange(w) {
if (w.selectedIndex < = 0)
localStorage["filter"] = "";
else
localStorage["filter"] = unescape(w.options[w.selectedIndex].value);
entriesLoadHead();
}
function onBootChange(w) {
localStorage["boot"] = w.checked ? "1" : "0";
entriesLoadHead();
}
function initFilter() {
f = document.getElementById("filter");
var buf = '< option > No filter< / option > ';
var filter = localStorage["filter"];
if (filter != null & & filter != "") {
buf += '< option value = "' + escape(filter) + '" > ' + escapeHTML(filter) + '< / option > ';
j = 1;
} else
j = 0;
f.innerHTML = buf;
f.selectedIndex = j;
}
function installHandlers() {
document.onkeyup = onKeyUp;
logs = document.getElementById("divlogs");
logs.addEventListener("mousewheel", onMouseWheel, false);
logs.addEventListener("DOMMouseScroll", onMouseWheel, false);
}
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machineLoad();
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entriesLoad(null);
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showNEntries(getNEntries());
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initFilter();
installHandlers();
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< / script >
< / body >
< / html >
