src/journal/browse.html

   1 <!DOCTYPE html>
   2 <html>
   3 <head>
   4         <title>Journal</title>
   5         <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
   6         <style type="text/css">
   7                 div#divlogs, div#diventry {
   8                         font-family: monospace;
   9                         font-size: 8pt;
  10                         background-color: #ffffff;
  11                         padding: 1em;
  12                         margin: 2em 0em;
  13                         border-radius: 10px 10px 10px 10px;
  14                         border: 1px solid threedshadow;
  15                         white-space: nowrap;
  16                         overflow-x: scroll;
  17                 }
  18                 div#diventry {
  19                         display: none;
  20                 }
  21                 div#divlogs {
  22                         display: block;
  23                 }
  24                 body {
  25                         background-color: #ededed;
  26                         color: #313739;
  27                         font: message-box;
  28                         margin: 5em;
  29                 }
  30                 td.timestamp {
  31                         text-align: right;
  32                         border-right: 1px dotted lightgrey;
  33                         padding-right: 5px;
  34                 }
  35                 td.process {
  36                         border-right: 1px dotted lightgrey;
  37                         padding-left: 5px;
  38                         padding-right: 5px;
  39                 }
  40                 td.message {
  41                         padding-left: 5px;
  42                 }
  43                 td.message > a:link, td.message > a:visited {
  44                         text-decoration: none;
  45                         color: #313739;
  46                 }
  47                 td.message-error {
  48                         padding-left: 5px;
  49                         color: red;
  50                         font-weight: bold;
  51                 }
  52                 td.message-error > a:link, td.message-error > a:visited {
  53                         text-decoration: none;
  54                         color: red;
  55                 }
  56                 td.message-highlight {
  57                         padding-left: 5px;
  58                         font-weight: bold;
  59                 }
  60                 td.message-highlight > a:link, td.message-highlight > a:visited {
  61                         text-decoration: none;
  62                         color: #313739;
  63                 }
  64                 td > a:hover, td > a:active {
  65                         text-decoration: underline;
  66                         color: #c13739;
  67                 }
  68                 table#tablelogs, table#tableentry {
  69                         border-collapse: collapse;
  70                 }
  71                 td.field {
  72                         text-align: right;
  73                         border-right: 1px dotted lightgrey;
  74                         padding-right: 5px;
  75                 }
  76                 td.data {
  77                         padding-left: 5px;
  78                 }
  79         </style>
  80 </head>
  81
  82 <body>
  83         <!-- TODO:
  84                 - live display
  85                 - keyboard navigation
  86                 - localstorage
  87                 - show red lines for reboots -->
  88
  89         <h1 id="title"></h1>
  90
  91         <div id="os"></div>
  92         <div id="virtualization"></div>
  93         <div id="cutoff"></div>
  94         <div id="machine"></div>
  95         <div id="usage"></div>
  96         <div id="showing"></div>
  97
  98         <div id="divlogs"><table id="tablelogs"></table></div>
  99         <a name="entry"></a>
 100         <div id="diventry"><table id="tableentry"></table></div>
 101
 102         <form>
 103                 <input id="head" type="button" value="|&lt;" onclick="entriesLoadHead();"/>
 104                 <input id="previous" type="button" value="&lt;&lt;" onclick="entriesLoadPrevious();"/>
 105                 <input id="next" type="button" value="&gt;&gt;" onclick="entriesLoadNext();"/>
 106                 <input id="tail" type="button" value="&gt;|" onclick="entriesLoadTail();"/>
 107                 &nbsp;&nbsp;&nbsp;&nbsp;
 108                 <input id="more" type="button" value="More" onclick="entriesMore();"/>
 109                 <input id="less" type="button" value="Less" onclick="entriesLess();"/>
 110         </form>
 111
 112         <script type="text/javascript">
 113                 var first_cursor = null;
 114                 var last_cursor = null;
 115
 116                 function setCookie(name, value, msec) {
 117                         var d = new Date();
 118                         d.setMilliseconds(d.getMilliseconds() + msec);
 119                         var v = escape(value) + "; expires=" + d.toUTCString();
 120                         document.cookie = name + "=" + value;
 121                 }
 122
 123                 function getCookie(name) {
 124                         var i, l;
 125                         l = document.cookie.split(";");
 126                         for (i in l) {
 127                                 var x, y, j;
 128                                 j = l[i].indexOf("=");
 129                                 x = l[i].substr(0, j);
 130                                 y = l[i].substr(j+1);
 131                                 if (x == name)
 132                                         return unescape(y);
 133                         }
 134                         return null;
 135                 }
 136
 137                 function getNEntries() {
 138                         var n;
 139                         n = getCookie("n_entries");
 140                         if (n == null)
 141                                 return 50;
 142                         return parseInt(n);
 143                 }
 144
 145                 function showNEntries(n) {
 146                         var showing = document.getElementById("showing");
 147                         showing.innerHTML = "Showing <b>" + n.toString() + "</b> entries.";
 148                 }
 149
 150                 function setNEntries(n) {
 151                         if (n < 10)
 152                                 n = 10;
 153                         else if (n > 1000)
 154                                 n = 1000;
 155
 156                         setCookie("n_entries", n.toString(), 30*24*60*60*1000);
 157                         showNEntries(n);
 158                 }
 159
 160                 function machineLoad() {
 161                         var request = new XMLHttpRequest();
 162                         request.open("GET", "/machine");
 163                         request.onreadystatechange = machineOnResult;
 164                         request.setRequestHeader("Accept", "application/json");
 165                         request.send(null);
 166                 }
 167
 168                 function formatBytes(u) {
 169                         if (u >= 1024*1024*1024*1024)
 170                                 return (u/1024/1024/1024/1024).toFixed(1) + " TiB";
 171                         else if (u >= 1024*1024*1024)
 172                                 return (u/1024/1024/1024).toFixed(1) + " GiB";
 173                         else if (u >= 1024*1024)
 174                                 return (u/1024/1024).toFixed(1) + " MiB";
 175                         else if (u >= 1024)
 176                                 return (u/1024).toFixed(1) + " KiB";
 177                         else
 178                                 return u.toString() + " B";
 179                 }
 180
 181                 function escapeHTML(s) {
 182                         return s.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;");
 183                 }
 184
 185                 function machineOnResult(event) {
 186                         if ((event.currentTarget.readyState != 4) ||
 187                                 (event.currentTarget.status != 200 && event.currentTarget.status != 0))
 188                                 return;
 189
 190                         var d = JSON.parse(event.currentTarget.responseText);
 191
 192                         var title = document.getElementById("title");
 193                         title.innerHTML = 'Journal of ' + escapeHTML(d.hostname);
 194                         document.title = 'Journal of ' + escapeHTML(d.hostname);
 195
 196                         var machine = document.getElementById("machine");
 197                         machine.innerHTML = 'Machine ID is <b>' + d.machine_id + '</b>, current boot ID is <b>' + d.boot_id + '</b>.';
 198
 199                         var cutoff = document.getElementById("cutoff");
 200                         var from = new Date(parseInt(d.cutoff_from_realtime) / 1000);
 201                         var to = new Date(parseInt(d.cutoff_to_realtime) / 1000);
 202                         cutoff.innerHTML = 'Journal begins at <b>' + from.toLocaleString() + '</b> and ends at <b>' + to.toLocaleString() + '</b>.';
 203
 204                         var usage = document.getElementById("usage");
 205                         usage.innerHTML = 'Disk usage is <b>' + formatBytes(parseInt(d.usage)) + '</b>.';
 206
 207                         var os = document.getElementById("os");
 208                         os.innerHTML = 'Operating system is <b>' + escapeHTML(d.os_pretty_name) + '</b>.';
 209
 210                         var virtualization = document.getElementById("virtualization");
 211                         virtualization.innerHTML = d.virtualization == "bare" ? "Running on <b>bare metal</b>." : "Running on virtualization <b>" + escapeHTML(d.virtualization) + "</b>.";
 212                 }
 213
 214                 function entriesLoad(range) {
 215                         var request = new XMLHttpRequest();
 216                         request.open("GET", "/entries");
 217                         request.onreadystatechange = entriesOnResult;
 218                         request.setRequestHeader("Accept", "application/json");
 219                         request.setRequestHeader("Range", "entries=" + range + ":" + getNEntries().toString());
 220                         request.send(null);
 221                 }
 222
 223                 function entriesLoadNext() {
 224                         if (last_cursor == null)
 225                                 entriesLoad("");
 226                         else
 227                                 entriesLoad(last_cursor + ":1");
 228                 }
 229
 230                 function entriesLoadPrevious() {
 231                         if (first_cursor == null)
 232                                 entriesLoad("");
 233                         else
 234                                 entriesLoad(first_cursor + ":-" + getNEntries().toString());
 235                 }
 236
 237                 function entriesLoadHead() {
 238                         entriesLoad("");
 239                 }
 240
 241                 function entriesLoadTail() {
 242                         entriesLoad(":-" + getNEntries().toString());
 243                 }
 244
 245                 function entriesOnResult(event) {
 246
 247                         if ((event.currentTarget.readyState != 4) ||
 248                                 (event.currentTarget.status != 200 && event.currentTarget.status != 0))
 249                                 return;
 250
 251                         var logs = document.getElementById("tablelogs");
 252
 253                         var lc = null;
 254                         var fc = null;
 255
 256                         var i;
 257                         var l = event.currentTarget.responseText.split('\n');
 258
 259                         if (l.length <= 1) {
 260                                 logs.innerHTML = '<tbody><tr><td colspan="3"><i>No further entries...</i></td></tr></tbody>';
 261                                 return;
 262                         }
 263
 264                         var buf = '';
 265
 266                         for (i in l) {
 267
 268                                 if (l[i] == '')
 269                                         continue;
 270
 271                                 var d = JSON.parse(l[i]);
 272                                 if (d.MESSAGE == undefined || d.__CURSOR == undefined)
 273                                         continue;
 274
 275                                 if (fc == null)
 276                                         fc = d.__CURSOR;
 277                                 lc = d.__CURSOR;
 278
 279                                 var priority;
 280                                 if (d.PRIORITY != undefined)
 281                                         priority = parseInt(d.PRIORITY);
 282                                 else
 283                                         priority = 6;
 284
 285                                 if (priority <= 3)
 286                                         clazz = "message-error";
 287                                 else if (priority <= 5)
 288                                         clazz = "message-highlight";
 289                                 else
 290                                         clazz = "message";
 291
 292                                 buf += '<tr><td class="timestamp">';
 293
 294                                 if (d.__REALTIME_TIMESTAMP != undefined) {
 295                                         var timestamp = new Date(parseInt(d.__REALTIME_TIMESTAMP) / 1000);
 296                                         buf += timestamp.toLocaleString();
 297                                 }
 298
 299                                 buf += '</td><td class="process">';
 300
 301                                 if (d.SYSLOG_IDENTIFIER != undefined)
 302                                         buf += escapeHTML(d.SYSLOG_IDENTIFIER);
 303                                 else if (d._COMM != undefined)
 304                                         buf += escapeHTML(d._COMM);
 305
 306                                 if (d._PID != undefined)
 307                                         buf += "[" + escapeHTML(d._PID) + "]";
 308                                 else if (d.SYSLOG_PID != undefined)
 309                                         buf += "[" + escapeHTML(d.SYSLOG_PID) + "]";
 310
 311                                 buf += '</td><td class="' + clazz + '"><a href="#entry" onclick="onMessageClick(\'' + lc + '\');">';
 312
 313                                 if (d.MESSAGE == null)
 314                                         buf += "[blob data]";
 315                                 else if (d.MESSAGE instanceof Array)
 316                                         buf += "[" + formatBytes(d.MESSAGE.length) + " blob data]";
 317                                 else
 318                                         buf += escapeHTML(d.MESSAGE);
 319
 320                                 buf += '</a></td></tr>';
 321                         }
 322
 323                         logs.innerHTML = '<tbody>' + buf + '</tbody>';
 324
 325                         if (fc != null)
 326                                 first_cursor = fc;
 327                         if (lc != null)
 328                                 last_cursor = lc;
 329                 }
 330
 331                 function entriesMore() {
 332                         setNEntries(getNEntries() + 10);
 333                         entriesLoad(first_cursor);
 334                 }
 335
 336                 function entriesLess() {
 337                         setNEntries(getNEntries() - 10);
 338                         entriesLoad(first_cursor);
 339                 }
 340
 341                 function onResultMessageClick(event) {
 342                         if ((event.currentTarget.readyState != 4) ||
 343                                 (event.currentTarget.status != 200 && event.currentTarget.status != 0))
 344                                 return;
 345
 346                         var d = JSON.parse(event.currentTarget.responseText);
 347
 348                         document.getElementById("diventry").style.display = "block";
 349                         entry = document.getElementById("tableentry");
 350
 351                         var buf = "";
 352                         for (var key in d){
 353                                 var data = d[key];
 354
 355                                 if (data == null)
 356                                         data = "[blob data]";
 357                                 else if (data instanceof Array)
 358                                         data = "[" + formatBytes(data.length) + " blob data]";
 359                                 else
 360                                         data = escapeHTML(data);
 361
 362                                 buf += '<tr><td class="field">' + key + '</td><td class="data">' + data + '</td></tr>';
 363                         }
 364                         entry.innerHTML = '<tbody>' + buf + '</tbody>';
 365                 }
 366
 367                 function onMessageClick(t) {
 368                         var request = new XMLHttpRequest();
 369                         request.open("GET", "/entries?discrete");
 370                         request.onreadystatechange = onResultMessageClick;
 371                         request.setRequestHeader("Accept", "application/json");
 372                         request.setRequestHeader("Range", "entries=" + t + ":0:1");
 373                         request.send(null);
 374                 }
 375
 376                 machineLoad();
 377                 entriesLoad("");
 378                 showNEntries(getNEntries());
 379         </script>
 380 </body>
 381 </html>