Fix upstream links yielding no results on the Query Log if names are shown

Signed-off-by: DL6ER <dl6er@dl6er.de>

scripts/pi-hole/js/charts.js

@@ -5,6 +5,8 @@
  *  This file is copyright under the latest version of the EUPL.
  *  Please see LICENSE file for your rights under this license. */
 
+/* global upstreams */
+
 // eslint-disable-next-line no-unused-vars
 var THEME_COLORS = [
   "#f56954",
@@ -97,7 +99,8 @@ const htmlLegendPlugin = {
             window.location.href = "queries.lp?type=" + item.text;
           } else if (chart.canvas.id === "forwardDestinationPieChart") {
             // Encode the forward destination as it may contain an "#" character
-            window.location.href = "queries.lp?upstream=" + encodeURIComponent(item.text);
+            const upstream = encodeURIComponent(upstreams[item.text]);
+            window.location.href = "queries.lp?upstream=" + upstream;
           }
         });
       }

scripts/pi-hole/js/index.js

@@ -200,6 +200,7 @@ function updateClientsOverTime() {
     });
 }
 
+var upstreams = {};
 function updateForwardDestinationsPie() {
   $.getJSON("/api/stats/upstreams", function (data) {
     var v = [],
@@ -221,6 +222,12 @@ function updateForwardDestinationsPie() {
         label += "#" + item.port;
       }
 
+      // Store upstreams for generating links to the Query Log
+      upstreams[label] = item.ip;
+      if (item.port > 0) {
+        upstreams[label] += "#" + item.port;
+      }
+
       var percent = (100 * item.count) / sum;
       values.push([label, percent, THEME_COLORS[i++ % THEME_COLORS.length]]);
     });