From 4204ac33bda43b21a2bfa40dd1f4345156e3b64a Mon Sep 17 00:00:00 2001
From: dg9vh <kim@huebel-online.de>
Date: Wed, 12 Oct 2016 16:54:11 +0000
Subject: [PATCH] make sysinfo go ajax

---
 ajax.php                 | 174 +++++++++++++++++++++++++++++++++++++++
 include/sysinfo_ajax.php |  31 +++++++
 index.php                |   2 +-
 version.php              |   2 +-
 4 files changed, 207 insertions(+), 2 deletions(-)
 create mode 100644 include/sysinfo_ajax.php

diff --git a/ajax.php b/ajax.php
index ede75db..3f96fe1 100644
--- a/ajax.php
+++ b/ajax.php
@@ -46,4 +46,178 @@ if ($_GET['section'] == "localTx") {
 	}
 	echo '{"data": '.json_encode($lastHeard)."}";
 }
+
+if ($_GET['section'] == "sysinfo") {
+	$cputemp = NULL;
+	$cpufreq = NULL;
+	if (file_exists ("/sys/class/thermal/thermal_zone0/temp")) {
+		exec("cat /sys/class/thermal/thermal_zone0/temp", $cputemp);
+		$cputemp = $cputemp[0] / 1000;
+	}
+	showLapTime("cputemp");
+	if (file_exists ("/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq")) {
+		exec("cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq", $cpufreq);
+		$cpufreq = $cpufreq[0] / 1000;
+	}
+	showLapTime("cpufreq");
+	
+	if (defined("TEMPERATUREALERT") && $cputemp > TEMPERATUREHIGHLEVEL && $cputemp !== NULL) {
+?>
+		<script>
+			function deleteLayer(id) {
+				if (document.getElementById && document.getElementById(id)) {
+					var theNode = document.getElementById(id);
+					theNode.parentNode.removeChild(theNode);
+				}
+				else if (document.all && document.all[id]) {
+					document.all[id].innerHTML='';
+					document.all[id].outerHTML='';
+				}
+				// OBSOLETE CODE FOR NETSCAPE 4 
+				else if (document.layers && document.layers[id]) {
+					document.layers[id].visibility='hide';
+					delete document.layers[id];
+				}
+			}
+
+			function makeLayer(id,L,T,W,H,bgColor,visible,zIndex) {
+				if (document.getElementById) {
+					if (document.getElementById(id)) {
+						alert ('Layer with this ID already exists!');
+						return;
+					}
+					var ST = 'position:absolute; text-align:center;padding-top:20px;'
+					+'; left:'+L+'px'
+					+'; top:'+T+'px'
+					+'; width:'+W+'px'
+					+'; height:'+H+'px'
+					+'; clip:rect(0,'+W+','+H+',0)'
+					+'; visibility:'
+					+(null==visible || 1==visible ? 'visible':'hidden')
+					+(null==zIndex  ? '' : '; z-index:'+zIndex)
+					+(null==bgColor ? '' : '; background-color:'+bgColor);
+
+					var LR = '<DIV id='+id+' style="'+ST+'">CPU-Temperature is very high!<br><input type="button" value="Close" onclick="deleteLayer(\'LYR1\')"></DIV>';
+
+					if (document.body) {
+						if (document.body.insertAdjacentHTML)
+							document.body.insertAdjacentHTML("BeforeEnd",LR);
+						else if (document.createElement && document.body.appendChild) {
+							var newNode = document.createElement('div');
+							newNode.setAttribute('id',id);
+							newNode.setAttribute('style',ST);
+							document.body.appendChild(newNode);
+						}
+					}
+				}
+			}
+			var audio = new Audio('sounds/alert.mp3');
+			audio.play();
+			var x = window.innerWidth/2-100;
+			var y = window.innerHeight/2-50;
+
+			makeLayer('LYR1',x,y,200,100,'red',1,1);
+		</script>
+<?php
+	}
+
+	$output = shell_exec('cat /proc/loadavg');
+	$sysload = substr($output,0,strpos($output," "))*100; 
+	showLapTime("sysload");
+	$stat1 = file('/proc/stat'); 
+	sleep(1); 
+	$stat2 = file('/proc/stat'); 
+	$info1 = explode(" ", preg_replace("!cpu +!", "", $stat1[0])); 
+	$info2 = explode(" ", preg_replace("!cpu +!", "", $stat2[0])); 
+	$dif = array(); 
+	$dif['user'] = $info2[0] - $info1[0]; 
+	$dif['nice'] = $info2[1] - $info1[1]; 
+	$dif['sys'] = $info2[2] - $info1[2]; 
+	$dif['idle'] = $info2[3] - $info1[3]; 
+	$total = array_sum($dif); 
+	$cpu = array(); 
+	foreach($dif as $x=>$y) $cpu[$x] = round($y / $total * 100, 1); 
+	$cpuusage = round($cpu['user'] + $cpu['sys'], 2); 
+	showLapTime("cpuusage");
+	
+	$output = shell_exec('grep -c processor /proc/cpuinfo');
+	$cpucores = $output;
+
+	$output = shell_exec('cat /proc/uptime');
+	$uptime = format_time(substr($output,0,strpos($output," ")));
+	$idletime = format_time((substr($output,strpos($output," ")))/$cpucores);
+	showLapTime("idletime");
+	
+	if (defined("SHOWPOWERSTATE")) {
+		$pinStatus = trim(shell_exec("gpio -g read ".POWERONLINEPIN)); // Pin 18
+	}
+	//returns 0 = low; 1 = high
+?>
+<tbody>
+				<tr>
+					<?php
+					if (defined("SHOWPOWERSTATE")) {
+					?>
+					<th>Power</th>
+					<?php
+					}
+					if ($cputemp !== NULL) {
+					?>
+					<th>CPU-Temperature</th>
+					<?php
+					}
+					if ($cpufreq !== NULL) {
+					?>
+					<th>CPU-Frequency</th>
+					<?php
+					}
+					?>
+					<th>System-Load</th>
+					<th>CPU-Usage</th>
+					<th>Uptime</th>
+					<th>Idle</th>
+				</tr>
+				<tr class="gatewayinfo">
+					<?php
+					if (defined("SHOWPOWERSTATE")) {
+					?>
+					<td><?php if ($pinStatus == POWERONLINESTATE ) {echo "online";} else {echo "on battery";} ?></td>
+					<?php
+					}
+					if ($cputemp !== NULL) {
+					?>
+					<td><?php echo $cputemp; ?> &deg;C</td>
+					<?php
+					}
+					if ($cpufreq !== NULL) {
+					?>
+					<td><?php echo $cpufreq; ?> MHz</td>
+					<?php
+					}
+					?>
+					<td><?php echo $sysload; ?> %</td>
+					<td>
+<?php
+	if (defined("SHOWPROGRESSBARS")) {
+?>
+						<div class="progress"><div class="progress-bar <?php
+		if ($cpuusage < 30)
+			echo "progress-bar-success";
+		if ($cpuusage >= 30 and $cpuusage < 60)
+			echo "progress-bar-warning";
+		if ($cpuusage >= 60)
+			echo "progress-bar-danger";
+?>" role="progressbar" aria-valuenow="<?php echo $cpuusage; ?>" aria-valuemin="0" aria-valuemax="100" style="width: <?php echo $cpuusage; ?>%;"><?php echo $cpuusage; ?>%</div></div>
+<?php
+	} else {
+		echo $cpuusage." %";
+	}
+?>
+					</td>
+					<td><?php echo $uptime; ?></td>
+					<td><?php echo $idletime; ?></td>
+				</tr>
+			</tbody>
+<?php
+}
 ?>
\ No newline at end of file
diff --git a/include/sysinfo_ajax.php b/include/sysinfo_ajax.php
new file mode 100644
index 0000000..cae62c1
--- /dev/null
+++ b/include/sysinfo_ajax.php
@@ -0,0 +1,31 @@
+ <div class="panel panel-default">
+  <!-- Standard-Panel-Inhalt -->
+  <div class="panel-heading">System Info</div>
+  <!-- Tabelle -->
+	<div class="table-responsive">  
+		<table id="sysinfo" class="table table-condensed">
+		</table>
+	</div>
+  </div>
+ </div>
+<script>
+function loadXMLDocSysinfo() {
+	var xmlhttp;
+	if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari
+		xmlhttp=new XMLHttpRequest();
+	} else {// code for IE6, IE5
+		xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
+	}
+	xmlhttp.onreadystatechange=function() {
+		if (xmlhttp.readyState==4 && xmlhttp.status==200) {
+			document.getElementById("sysinfo").innerHTML=xmlhttp.responseText;
+		}
+	}
+	xmlhttp.open("GET","ajax.php?section=sysinfo",true);
+	xmlhttp.send();
+
+	var timeout = window.setTimeout("loadXMLDocSysinfo()", 20000);
+	refreshMode();
+}
+loadXMLDocSysinfo();
+</script>
diff --git a/index.php b/index.php
index 5106a6a..0382bb6 100644
--- a/index.php
+++ b/index.php
@@ -68,7 +68,7 @@ checkSetup();
 // Here you can feel free to disable info-sections by commenting out with // before include
 include "include/txinfo.php";
 showLapTime("txinfo");
-include "include/sysinfo.php";
+include "include/sysinfo_ajax.php";
 showLapTime("sysinfo");
 include "include/disk.php";
 showLapTime("disk");
diff --git a/version.php b/version.php
index 923dea9..812fd84 100644
--- a/version.php
+++ b/version.php
@@ -1,3 +1,3 @@
 <?php
-define("VERSION", "20161012-1");
+define("VERSION", "20161012-2");
 ?>