From 6058224ea8963c0c1413f38c2ba15b4a5b12c875 Mon Sep 17 00:00:00 2001
From: clerie <git@clerie.de>
Date: Thu, 25 Aug 2022 22:53:38 +0200
Subject: [PATCH] Begin project

---
 index.html | 166 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 166 insertions(+)
 create mode 100644 index.html
diff --git a/index.html b/index.html
new file mode 100644
index 0000000..3836782
--- /dev/null
+++ b/index.html
@@ -0,0 +1,166 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+    <title>ping.clerie.de</title>
+    <style>
+      #canvas {
+        width: 100%;
+        height: 100%;
+        display: block;
+        position: fixed;
+        top: 0;
+        left: 0;
+        z-index: -9999;
+      }
+    </style>
+  </head>
+  <body>
+    <h1>ping.clerie.de</h1>
+    <span id="audio_toggle">🕨</span>
+    <canvas id="canvas" width="500" height="50"></canvas>
+    <ul id="ping">
+    </ul>
+    <p><small>Is it already broken yet? <a href="https://git.clerie.de/clerie/ping.clerie.de">Host yourself :3</a></small></p>
+
+    <script>
+      function httpGet(url, loaded, error) {
+        var xmlHttp = new XMLHttpRequest();
+        xmlHttp.open("GET", url + ((/\?/).test(url) ? "&" : "?") + (new Date()).getTime(), true);
+        xmlHttp.onload = () => {
+          loaded();
+        };
+        xmlHttp.onerror = () => {error();};
+        xmlHttp.send(null);
+      }
+
+      function displayPing(text) {
+        document.getElementById("ping").innerHTML += "<li>" + text + "</li>";
+      }
+
+      let ac;
+      let gain;
+      let osc;
+      let withAudio = false;
+
+      let audio_toggle = document.getElementById("audio_toggle");
+
+      audio_toggle.onclick = () => {
+        if (!withAudio) {
+          ac = new AudioContext();
+
+          osc = ac.createOscillator();
+          gain = ac.createGain();
+
+          osc.connect(gain);
+          gain.connect(ac.destination)
+
+          gain.gain.setValueAtTime(0, ac.currentTime);
+          osc.start();
+
+          audio_toggle.innerText = "🕪";
+          withAudio = true;
+        } else {
+          osc.stop();
+          audio_toggle.innerText = "🕨";
+          withAudio = false;
+        }
+      }
+
+      let playing = false;
+
+      function beepOn() {
+        if (!playing) {
+          if (withAudio) {
+            gain.gain.setValueCurveAtTime([0,1], ac.currentTime, 0.08);
+          }
+          playing = true;
+        }
+      }
+
+      function beepOff() {
+        if (playing) {
+          if (withAudio) {
+            gain.gain.setValueCurveAtTime([1,0], ac.currentTime, 0.08);
+          }
+          playing = false;
+        }
+      }
+
+      let reachability = [];
+      let reachability_size = 10;
+
+      let cv = document.getElementById("canvas");
+      cv.width = window.innerWidth;
+      cv.height = window.innerHeight;
+      let ctx = canvas.getContext('2d');
+      let zoom = 10;
+
+      function resizeCanvas() {
+        cv.width = window.innerWidth;
+        cv.height = window.innerHeight;
+      }
+
+      window.onresize = resizeCanvas;
+
+      function plotLoop() {
+        let currentTime = (new Date()).getTime();
+        ctx.lineWidth = 4;
+        ctx.clearRect(0, 0, cv.width, cv.height);
+        ctx.beginPath();
+        if (reachability.length >= 1 && reachability[reachability.length-1][1] === undefined) {
+          ctx.moveTo(cv.width - ((currentTime - reachability[reachability.length-1][0]) / zoom), cv.height/2);
+        } else {
+          ctx.moveTo(cv.width, cv.height/2);
+        }
+        for (let i = reachability.length-1; i > 0; i--) {
+          if (reachability[i][0] !== undefined) {
+            ctx.lineTo(cv.width - ((currentTime - reachability[i][1]) / zoom), cv.height/2);
+          }
+          ctx.moveTo(cv.width - ((currentTime - reachability[i][0]) / zoom), cv.height/2);
+
+          if (cv.width - ((currentTime - reachability[i][0]) / zoom) < 0) {
+            reachability_size = reachability.length - i;
+            break;
+          }
+        }
+        ctx.lineTo(0, cv.height/2);
+        ctx.stroke();
+        window.requestAnimationFrame(plotLoop);
+      }
+
+      function loop() {
+        setTimeout(() => {
+          beepOn();
+          let startTime = (new Date()).getTime();
+          if (reachability.length > reachability_size-1) {
+            reachability = reachability.slice(-reachability_size-1);
+          }
+          reachability.push([startTime, undefined]);
+          httpGet("https://ip6.clerie.de/",
+            () => {
+              let endTime = (new Date()).getTime();
+              reachability[reachability.length-1][1] = endTime;
+              let rtt = endTime - startTime;
+              if (rtt < 1000) {
+                setTimeout(() => {
+                  beepOff();
+                  loop();
+                }, 1000 - rtt);
+              } else {
+                loop();
+              }
+            },
+            () => {
+              loop();
+            }
+          );
+        }, 1000);
+      }
+
+      loop();
+      window.requestAnimationFrame(plotLoop);
+    </script>
+  </body>
+</html>
