Replace rcon with "server list ping" for basic information

See https://wiki.vg/Server_List_Ping for details. It should allow to run
the landing page more stable as less parsing is involved. Also it does
not need to wait for the version reply anymore. This should fix several
500 errors if the version response is to slow.

homepage/html/index.html

@@ -38,8 +38,7 @@ Hardware:
 
 Versions:
 • Minecraft: {{server_details["versions"]["minecraft"]}}
-• Paper: {{server_details["versions"]["paper"]}}
-• API: {{server_details["versions"]["api"]}}
+• Server: {{server_details["versions"]["paper"]}}
 
 Datapacks:
 % for datapack in server_details["datapacks"]:

homepage/main.py

@@ -1,9 +1,10 @@
 #!/usr/bin/env python3
-from bottle import route, run, static_file, template
-from os import listdir, sysconf
+from mcstatus import MinecraftServer
 from os.path import join as pathjoin
+from bottle import route, run, static_file, template
 from random import random, choice
 from mcrcon import MCRcon
+from os import listdir, sysconf
 import configparser
 import platform
 import requests
@@ -48,29 +49,14 @@ def callback(path):
     return static_file(path, root="static")
 
 def currentPlayerData():
+    status = server_status()
     player = {}
-    with MCRcon(CONFIG["mcrcon"]["host"], CONFIG["mcrcon"]["password"], port=int(CONFIG["mcrcon"]["port"])) as mcr:
-        resp = mcr.command("list uuids")
-    resp = resp.split(":")
-    player_string = resp[1].strip()
-    if player_string != "":
-        player_list = player_string.split(",")
-    else:
-        player_list = []
-    player_list = list(map(lambda x: x.strip(), player_list))
-    count_regex = re.match("There are ([0-9]+) of a max of ([0-9]+) players online", resp[0])
-    num_players = count_regex.group(1)
-    max_players = count_regex.group(2)
-
     player["count"] = {}
-    player["count"]["current"] = num_players
-    player["count"]["max"] = max_players
+    player["count"]["current"] = status.players.online
+    player["count"]["max"] = status.players.max
     player["players"] = []
-    for p in player_list:
-        data = p.split(" ")
-        name = data[0].strip()
-        uuid = data[1].strip().replace("(", "").replace(")", "")
-        player["players"].append({"name": name, "uuid": uuid})
+    for p in status.players.sample:
+        player["players"].append({"name": p.name, "uuid": p.id})
     return player
 
 def fetchSkin(uuid):
@@ -107,17 +93,10 @@ def hardware_info():
     return {"cpu": processor, "ram": mem_pretty}
 
 def paper_version():
-    with MCRcon(CONFIG["mcrcon"]["host"], CONFIG["mcrcon"]["password"], port=int(CONFIG["mcrcon"]["port"])) as mcr:
-        for i in range(0, 10):
-            resp = mcr.command("version")
-            if not "please wait" in resp:
-                break
-    match = re.match(".*(This server is running Paper version )(.*) \((.*)\) \(Implementing API version (.*)\).*", resp)
-    paper_version = match.group(2)
-    mc_version = match.group(3)
-    mc_version = mc_version.split(":")[1].strip()
-    api_version = match.group(4)
-    return {"paper": paper_version, "minecraft": mc_version, "api": api_version}
+    status = server_status()
+    paper_version = status.version.name
+    mc_version = status.version.protocol
+    return {"paper": paper_version, "minecraft": mc_version}
 
 def datapack_info():
     with MCRcon(CONFIG["mcrcon"]["host"], CONFIG["mcrcon"]["password"], port=int(CONFIG["mcrcon"]["port"])) as mcr:
@@ -141,6 +120,11 @@ def server_details():
     datapacks = datapack_info()
     return {"hardware": hardware, "versions": versions, "datapacks": datapacks}
 
+def server_status():
+    server = MinecraftServer.lookup(CONFIG["mcrcon"]["host"])
+    status = server.status()
+    return status
+
 
 CONFIG = parseConfig()
 run(host="localhost", port=8080)

homepage/requirements.txt

@@ -1,2 +1,3 @@
 bottle==0.12.19
 mcrcon==0.6.0
+mcstatus==5.2.0