Initial commit

.env.example

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+export BIND_HOST=0.0.0.0
+export BIND_PORT=25566
+export MINECRAFT_RCON_HOST=localhost
+# export MINECRAFT_RCON_PORT=255
+export MINECRAFT_RCON_PASSWORD=secret

.gitignore

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+__pycache__
+*.env

makefile

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+.PHONY: run
+run: .env ; @./run.sh
+.PHONY: init
+init:
+	pip install -r requirements.txt
+	@cp .env.example .env
+	${EDITOR} .env
+

readme.md

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+# TPUI
+
+TPUI is a very small app that effectively gives Minecraft players the ability to
+teleport in your server without needing mods or `/op`. It is currently only
+suitable for semi-trustworthy situations, since any player can teleport any
+other player, but is nice when you want to ensure nobody can perform other
+cheats.

requirements.txt

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+flask
+mcrcon

run.sh

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+#!/usr/bin/env sh
+
+source "./.env"
+env FLASK_APP=server.py python -m flask run --host="$BIND_HOST" --port="$BIND_PORT"

server.py

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+from mcrcon import MCRcon
+from flask import Flask, render_template, redirect, request
+import json
+import os
+
+app = Flask(__name__)
+
+# load from env vars
+host = os.environ['RCON_HOST']
+password = os.environ['RCON_PASSWORD']
+port = int(os.environ.setdefault('RCON_PORT', '25575'))
+print(f'Connecting to Minecraft Server: {host}:{port} with {password}')
+
+@app.route('/')
+def index():
+    return render_template('index.html', players=current_players_list())
+
+@app.route('/tp', methods=['POST'])
+def tp():
+    # TODO: sanitize inputs to avoid possible command injection
+    src = request.form['src']
+    dest = request.form['dest']
+
+    # this echoes a string that contains the src player's coordinates
+    src_coords = rcon_command(f"/tp {src} ~ ~ ~")
+
+    # teleport the player
+    rcon_command(f"/tp {src} {dest}")
+
+    # have the server report the old coordinates in case they need teleporting
+    # back
+    rcon_command(f"/say TP: {src_coords.replace(f'Teleported {src} to', f'{src} just teleported from', 1)} to {dest}".replace("[Rcon] ", ""))
+
+    return redirect('/')
+
+def rcon_command(cmd):
+    print(f"RCON: Sending \"{cmd}\"...")
+    response = ""
+    with MCRcon(host, password, port) as mcr:
+        response = mcr.command(cmd)
+        print(f"RCON: \"{cmd}\" Response:\n\t{response}")
+    return response
+
+def current_players_list():
+    # TODO: this breaks if a player has a comma in their name
+    # is that even possible?
+    plist = rcon_command(f"/list")
+    print(f'PLIST: {plist}')
+    print(f'PLIST: {plist.split(":")[1].split(", ")}')
+    return plist.split(":")[1].split(", ")

templates/index.html

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+Super Simple Minecraft RCON Teleporter
+
+<form method="POST" action="/tp">
+	Teleport 
+	<select name="src">
+		{% for p in players %}
+		<option>{{ p }}</option>
+		{% endfor %}
+	</select>
+		to
+	<select name="dest">
+		{% for p in players %}
+		<option>{{ p }}</option>
+		{% endfor %}
+	</select>
+	<input type="submit" value="Go!"</input>
+</form>
+<script type="text/javascript">
+
+</script>
+<style>
+	body {
+		background: #111;
+		color: #fff;
+		font-family: monospace;
+		font-size: 16px;
+		line-height: 1.6em;
+	}
+
+	select, input, button {
+		background: #222;
+		color: inherit;
+		font: inherit;
+		padding: 0.5em 0.8em;
+		border: solid 1px #888;
+		background: 
+	}
+</style>