- use AJAX to avoid loading DEBUG messages (breaks firefox by multi-MB log files)

author: Bart Polot <bart@net.in.tum.de> 2014-02-13 20:18:09 +0000
committer: Bart Polot <bart@net.in.tum.de> 2014-02-13 20:18:09 +0000
commit: fb3f9328589ff271a2840a982792522787dde2a4 (patch)
tree: 02ffaf2761951276fe82dc6c600526b3cd18eca9 /contrib
parent: 263c4b44b864cce3b7c1864cd9afddbf3b63fc2d (diff)
1 files changed, 150 insertions, 68 deletions
diff --git a/contrib/log.php b/contrib/log.php
index 497e34f4bb..6af3e57d4a 100644
--- a/contrib/log.php
+++ b/contrib/log.php
@@ -1,3 +1,90 @@
+<?php
+
+$path='log';
+$lines = array();
+$ajax = FALSE;
+
+function render_row ($d, $component, $pid, $level, $msg, $c)
+{
+  global $ajax;
+  if (!$ajax && $level == "DEBUG")
+    return;
+  $date = $d ? $d->format('Y-m-d'). '<br />' . $d->format('H:i:s') : "";
+  echo "<tr class=\"$level\" id=\"$c\">";
+  echo "<td class=\"date\"><small>$date</small></td>";
+  echo '<td class="usec">';
+  echo $d ? $d->format('u') : "";
+  echo '</td>';
+  echo "<td class=\"comp\">$component</td><td class=\"level\">$level</td><td>$msg&nbsp;</td>";
+  if ($level != "DEBUG")
+  {
+    echo '<td><button class="btn btn-xs btn-default btn-showup"><span class="glyphicon glyphicon-chevron-up"></span></button>';
+    echo '<button class="btn btn-xs btn-default btn-showdown"><span class="glyphicon glyphicon-chevron-down"></span></button></td></tr>';
+  }
+  else
+    echo '<td></td></tr>';
+}
+
+function render_rows ()
+{
+  global $lines;
+  foreach ($lines as $line) {
+    render_row ($line[0], $line[1], $line[2], $line[3], $line[4], $line[5]);
+  }
+}
+
+function process ($line, $c)
+{
+  global $lines;
+  $a = explode (' ', $line);
+  if (count($a) < 6)
+    return;
+  $date = DateTime::createFromFormat ("M d H:i:s-u", implode (' ', array_slice ($a, 0, 3)));
+  $component = $a[3];
+  $level = $a[4];
+  $msg = implode (' ', array_slice ($a, 5));
+  
+  $lines[] = array ($date, $component, 0, $level, $msg, $c);
+}
+
+if (array_key_exists ('a', $_GET)) {
+  $start = (int)$_GET['a'];
+  $ajax= TRUE;
+}
+else
+{
+  $start = null;
+}
+if (array_key_exists ('z', $_GET)) {
+  $stop = (int)$_GET['z'];
+  $ajax= TRUE;
+}
+else
+{
+  $stop = null;
+}
+$t0 = microtime(true);
+$handle = @fopen($path, 'r');
+if ($handle) {
+    $c = 0;
+    while (($line = fgets($handle)) !== false) {
+	if ((!$start || $c >= $start) && (!$stop || $c <= $stop)) {
+	  process ($line, $c);
+	}
+	$c++;
+    }
+} else {
+   echo "<div class=\"alert alert-danger\">Error opening file $path.</div>";
+}
+
+$t1 = microtime(true);
+if ($start !== null || $stop !== null) {
+  render_rows();
+  die();
+}
+// echo $t1-$t0;
+
+?>
 <!DOCTYPE html>
 <html lang="en">
 <head>
@@ -17,14 +104,17 @@
       font-family: arial,sans-serif;
       color:#444;
     }
-/*    a {
-      text-decoration: none;
-      color:#000;
-    }*/
     table {
       font-size:12px;
       border-collapse:collapse;
     }
+    .alert {
+      display: none;
+      position: fixed;
+      width: 75%;
+      left: 50%;
+      margin: 0 0 0 -37.5%;
+    }
     .level {
       display: none;
     }
@@ -51,6 +141,7 @@
     <button class="btn btn-default btn-showdebug"><span class="glyphicon glyphicon glyphicon-wrench"></span> Debug</button>
 </div>
 </div>
+<div id="msg" class="alert alert-success"></div>
 <table class="table">
   <thead>
   <tr>
@@ -63,56 +154,7 @@
   </tr>
   </thead>
   <tbody>
-<?php
-
-$path='log';
-
-function render_row ($d, $component, $pid, $level, $msg)
-{
-  $date = $d ? $d->format('Y-m-d'). '<br />' . $d->format('H:i:s') : "";
-  echo "<tr class=\"$level\">";
-  echo "<td class=\"date\">$date</td>";
-  echo '<td class="usec">';
-  echo $d ? $d->format('u') : "";
-  echo '</td>';
-  echo "<td class=\"comp\">$component</td><td class=\"level\">$level</td><td>$msg&nbsp;</td>";
-  if ($level != "DEBUG")
-  {
-    echo '<td><button class="btn btn-xs btn-default btn-show"><span class="glyphicon glyphicon-plus"></span></button>';
-    echo '<button class="btn btn-xs btn-default btn-hide"><span class="glyphicon glyphicon-minus"></span></button></td></tr>';
-  }
-  else
-    echo '<td></td></tr>';
-  $olddate = $date;
-} 
-
-function process ($line)
-{
-  $a = explode (' ', $line);
-  if (count($a) < 6)
-    return;
-  $date = DateTime::createFromFormat ("M d H:i:s-u", implode (' ', array_slice ($a, 0, 3)));
-  $component = $a[3];
-  $level = $a[4];
-  $msg = implode (' ', array_slice ($a, 5));
-  
-  if ($level != "DEBUG")
-    render_row ($date, $component, 0, $level, $msg);
-}
-
-$t0 = microtime(true);
-$handle = @fopen($path, 'r');
-if ($handle) {
-    while (($line = fgets($handle)) !== false) {
-        process ($line);
-    }
-} else {
-   echo "<div class=\"alert alert-danger\">Error opening file $path.</div>";
-}
-$t1 = microtime(true);
-// echo $t1-$t0;
-
-?>
+<?php render_rows(); ?>
   </tbody>
 </table>
   <!-- jQuery -->
@@ -123,20 +165,62 @@ $t1 = microtime(true);
   <script>
 
     var types = ["ERROR", "WARNING", "INFO", "DEBUG"];
-    function showt (level)
+    var msg_timeout;
+
+    function msg (content)
+    {
+      $("#msg").html(content);
+      $("#msg").stop(true);
+      $("#msg").fadeTo(100, 1).fadeTo(3000, 0.90).fadeOut(1000);
+    }
+
+    function showlevel (level)
     {
       $("tr").hide();
       for (var index = 0; index < types.length; ++index) {
-	  $("."+types[index]).show();
-	  if (types[index] == level)
-	    return;
+	$("."+types[index]).show();
+	if (types[index] == level)
+	  return;
       }
     }
 
-    function show (btn)
+    function show (btn, up)
     {
       var tr = $(btn).parents("tr");
-      tr.nextUntil("."+tr.attr("class")).show();
+      var level = tr.attr("class");
+      var pos = parseInt(tr.attr("id"));
+      var first = pos + 1;
+      var last = pos - 1;
+      if (up) {
+	if (parseInt(tr.prev().attr("id")) == last) {
+	  msg ("Already loaded");
+	  return;
+	}
+	first = parseInt(tr.prevAll("."+level).first().attr("id")) + 1;
+	first = isNaN(first) ? 0 : first;
+      } else {
+	if (parseInt(tr.next().attr("id")) == first) {
+	  msg ("Already loaded");
+	  return;
+	}
+	last = parseInt(tr.nextAll("."+level).first().attr("id")) - 1;
+      }
+      if (first > last)
+	return;
+      $.ajax({
+	url: document.location,
+	data: { a: first, z: last }
+      }).done(function ( resp ) {
+	var loc = $("#"+(first-1));
+	if (loc.length > 0)
+	  loc.after(resp);
+	else {
+	  $("#"+(last+1)).before(resp);
+	}
+	msg("Done loading " + (last-first+1) + " lines.");
+      });
+      //tr.nextUntil("."+tr.attr("class")).show();
+      
     }
 
     function hide (btn)
@@ -146,14 +230,12 @@ $t1 = microtime(true);
     }
 
     $(function() {
-      $(".DEBUG").hide();
-      $(".btn-show").on ("click", function(){ show(this) });
-      $(".btn-hide").on ("click", function(){ hide(this) });
-      $(".btn-showerror").on ("click", function(){ showt("ERROR") });
-      $(".btn-showwarn").on ("click", function(){ showt("WARNING") });
-      $(".btn-showinfo").on ("click", function(){ showt("INFO") });
-      $(".btn-showdebug").on ("click", function(){ showt("DEBUG") });
-      console.log( "ready!" );
+      $(".btn-showup").on ("click", function(){ show(this, true) });
+      $(".btn-showdown").on ("click", function(){ show(this, false) });
+      $(".btn-showerror").on ("click", function(){ showlevel("ERROR") });
+      $(".btn-showwarn").on ("click", function(){ showlevel("WARNING") });
+      $(".btn-showinfo").on ("click", function(){ showlevel("INFO") });
+      $(".btn-showdebug").on ("click", function(){ showlevel("DEBUG") });
     });
   </script>
 </body>
author	Bart Polot <bart@net.in.tum.de>	2014-02-13 20:18:09 +0000
committer	Bart Polot <bart@net.in.tum.de>	2014-02-13 20:18:09 +0000
commit	fb3f9328589ff271a2840a982792522787dde2a4 (patch)
tree	02ffaf2761951276fe82dc6c600526b3cd18eca9 /contrib
parent	263c4b44b864cce3b7c1864cd9afddbf3b63fc2d (diff)