Add blocking version of pihole.log tailing

header.php

@@ -353,6 +353,12 @@
                         <i class="fa fa-search"></i> <span>Query adlists</span>
                     </a>
                 </li>
+                <!-- Query adlists -->
+                <li>
+                    <a href="taillog.php">
+                        <i class="fa fa-list-ul"></i> <span>Tail pihole.log</span>
+                    </a>
+                </li>
                 <!-- Toggle -->
                 <?php
                 if ($pistatus == "1") {

js/pihole/taillog.js

@@ -0,0 +1,30 @@
+var source;
+function eventsource() {
+    var ta = $("#output");
+    source = new EventSource("php/taillog.php");
+
+    ta.html("");
+    ta.show();
+
+    source.addEventListener("message", function(e) {
+        if(e.data.indexOf("Ctrl-C") === -1)
+        {
+            // Hide the "Press Ctrl-C to exit" message
+            ta.append(e.data);
+        }
+
+    }, false);
+
+    // Will be called when script has finished
+    source.addEventListener("error", function(e) {
+        source.close();
+    }, false);
+}
+
+$(function(){
+    eventsource();
+});
+
+$(window).unload(function(){
+  source.close();
+});

php/taillog.php

@@ -0,0 +1,23 @@
+<?php
+require "password.php";
+if(!$auth) die("Not authorized");
+
+ob_end_flush();
+ini_set("output_buffering", "0");
+ob_implicit_flush(true);
+header('Content-Type: text/event-stream');
+header('Cache-Control: no-cache');
+
+function echoEvent($datatext) {
+    echo "data: ".implode("\ndata: ", explode("\n", $datatext))."\n\n";
+}
+
+// echoEvent("***START***");
+
+$proc = popen("sudo pihole -t", 'r');
+while (!feof($proc)) {
+    echoEvent(fread($proc, 4096));
+}
+
+// echoEvent("***END***");
+?>

taillog.php

@@ -0,0 +1,16 @@
+<?php
+    require "header.php";
+?>
+<!-- Title -->
+<div class="page-header">
+    <h1>Output the last lines of the pihole.log file (live)</h1>
+</div>
+
+<pre id="output" style="width: 100%; height: 100%;" hidden="true"></pre>
+
+<?php
+    require "footer.php";
+?>
+
+
+<script src="js/pihole/taillog.js"></script>