From f1dbbcbbb1e90b2e200464707235aeeaaf579bf0 Mon Sep 17 00:00:00 2001
From: sqozz <sqozz@geekify.de>
Date: Thu, 25 Mar 2021 01:27:33 +0100
Subject: [PATCH] Add online player skin rendering to the webui

---
 homepage/html/index.html       |  3 +++
 homepage/main.py               | 25 +++++++++++++++++++
 homepage/static/css/styles.css | 11 +++++++++
 homepage/static/js/index.js    | 44 ++++++++++++++++++++++++++++++++++
 4 files changed, 83 insertions(+)

diff --git a/homepage/html/index.html b/homepage/html/index.html
index 43d19e6..97cf4bf 100644
--- a/homepage/html/index.html
+++ b/homepage/html/index.html
@@ -41,6 +41,9 @@
 				</div>
 			</div>
 		</div>
+		<div id="skin_container">
+		</div>
 		<script src="/js/index.js"></script>
+		<script src="/js/skinview3d.bundle.js"></script>
 	</body>
 </html>
diff --git a/homepage/main.py b/homepage/main.py
index 41cd8c1..bf404c1 100644
--- a/homepage/main.py
+++ b/homepage/main.py
@@ -5,6 +5,10 @@ from os.path import join as pathjoin
 from random import random, choice
 from mcrcon import MCRcon
 import configparser
+import requests
+import hashlib
+import base64
+import json
 import re
 
 # echo -n "["; ls | xargs -I{} echo -n \"{}\",; echo "]"
@@ -24,6 +28,15 @@ def index():
     players = currentPlayerData()
     return template("html/index.html", **{"player_count": players["count"]["current"] , "max_players": players["count"]["max"], "news": news})
 
+@route("/getPlayerSkins")
+def getPlayerSkins():
+    players = currentPlayerData()
+    skins = []
+    for p in players["players"]:
+        hash = fetchSkin(p["uuid"])
+        skins.append(hash)
+    return {"skins": skins}
+
 @route("/img/bg.png")
 def random_bg_image():
     bg_file = choice(BG_IMAGES)
@@ -63,6 +76,18 @@ def currentPlayerData():
         player["players"].append({"name": name, "uuid": uuid})
     return player
 
+def fetchSkin(uuid):
+    profile = requests.get("https://sessionserver.mojang.com/session/minecraft/profile/{}".format(uuid)).json()
+    properties = profile.get("properties")
+    skin = list(filter(lambda x: x.get("name", "") == "textures", properties))[0]
+    skin_json = json.loads(base64.b64decode(skin.get("value")))
+    skin_url = skin_json.get("textures").get("SKIN").get("url")
+    skin_req = requests.get(skin_url)
+    player_hash = hashlib.sha256(uuid.encode()).hexdigest()
+    with open('./static/img/skins/{}'.format(player_hash), 'wb') as f:
+        f.write(skin_req.content)
+    return player_hash
+
 def parseConfig():
     config = configparser.ConfigParser()
     config.read("config.ini")
diff --git a/homepage/static/css/styles.css b/homepage/static/css/styles.css
index 52cf522..bff5240 100644
--- a/homepage/static/css/styles.css
+++ b/homepage/static/css/styles.css
@@ -126,6 +126,17 @@ body {
   background-size: 80px;
 }
 
+#skin_container {
+  position: absolute;
+  left: 0;
+  top: 0;
+  margin: 10px;
+  display: flex;
+  flex-flow: column wrap;
+  background-color: #fdfdfd45;
+  border: 3px solid #686767;
+}
+
 @font-face {
   font-family: 'minecraft';
   src: URL('/fonts/Minecraft.ttf') format('truetype');
diff --git a/homepage/static/js/index.js b/homepage/static/js/index.js
index cbf2ac2..38ec9fb 100644
--- a/homepage/static/js/index.js
+++ b/homepage/static/js/index.js
@@ -9,3 +9,47 @@ function toggleDetails(e) {
   }
   return false;
 }
+
+// Fetch a list of all online player hashes
+function getSkins() {
+  let xhr = new XMLHttpRequest();
+  xhr.open ( "GET",  "getPlayerSkins", true );
+  xhr.onreadystatechange = function () {
+    if (xhr.readyState == 4 && xhr.status == 200) {
+      skins = JSON.parse(xhr.responseText)["skins"];
+      skins.forEach(skin_hash => addSkin(skin_hash));
+    }
+  }
+  xhr.send ();
+}
+
+// Add a new canvas to the container and render the given skin
+function addSkin(hash) {
+  var container = document.querySelector("#skin_container");
+  var canvas = document.createElement("canvas");
+  container.appendChild(canvas);
+  canvas.id = hash;
+  renderSkin(hash, canvas);
+}
+
+// Create a new instance of the renderer in the given canvas with the given hash as player skin
+function renderSkin(hash, canvas) {
+  let skinViewer = new skinview3d.SkinViewer({
+    canvas: canvas,
+    width: 60,
+    height: 80,
+    skin: "/img/skins/" + hash
+  });
+
+  let control = skinview3d.createOrbitControls(skinViewer);
+  control.enableRotate = false;
+  control.enableZoom = false;
+  control.enablePan = false;
+
+  let walk = skinViewer.animations.add(skinview3d.WalkingAnimation);
+  let rotate = skinViewer.animations.add(skinview3d.RotatingAnimation);
+}
+
+window.onload = function () {
+  getSkins();
+}