WebHost: Use B64encoded UUIDs for links.

Warning: This will break old links

WebHostLib/__init__.py

@@ -2,6 +2,8 @@
 So unless you're Berserker you need to include license information."""
 
 import os
+import uuid
+import base64
 
 from pony.flask import Pony
 from flask import Flask, request, redirect, url_for, render_template, Response, session, abort
@@ -46,7 +48,21 @@ av = Autoversion(app)
 cache = Cache(app)
 Compress(app)
 
-# this local cache is risky business if app hosting is done with subprocesses as it will not sync. Waitress is fine though
+from werkzeug.routing import BaseConverter
+
+
+class B64UUIDConverter(BaseConverter):
+
+    def to_python(self, value):
+        return uuid.UUID(bytes=base64.urlsafe_b64decode(value + '=='))
+
+    def to_url(self, value):
+        return base64.urlsafe_b64encode(value.bytes).rstrip(b'=').decode('ascii')
+
+
+# short UUID
+app.url_map.converters["suuid"] = B64UUIDConverter
+app.jinja_env.filters['suuid'] = lambda value: base64.urlsafe_b64encode(value.bytes).rstrip(b'=').decode('ascii')
 
 
 @app.before_request
@@ -56,7 +72,7 @@ def register_session():
         session["_id"] = uuid4()  # uniquely identify each session without needing a login
 
 
-@app.route('/seed/<uuid:seed>')
+@app.route('/seed/<suuid:seed>')
 def view_seed(seed: UUID):
     seed = Seed.get(id=seed)
     if not seed:
@@ -65,7 +81,7 @@ def view_seed(seed: UUID):
                            rooms=[room for room in seed.rooms if room.owner == session["_id"]])
 
 
-@app.route('/new_room/<uuid:seed>')
+@app.route('/new_room/<suuid:seed>')
 def new_room(seed: UUID):
     seed = Seed.get(id=seed)
     if not seed:
@@ -84,14 +100,13 @@ def _read_log(path: str):
               f"Likely a crash during spinup of multiworld instance or it is still spinning up."
 
 
-@app.route('/log/<uuid:room>')
+@app.route('/log/<suuid:room>')
 def display_log(room: UUID):
     # noinspection PyTypeChecker
     return Response(_read_log(os.path.join("logs", str(room) + ".txt")), mimetype="text/plain;charset=UTF-8")
 
 
-
-@app.route('/hosted/<uuid:room>', methods=['GET', 'POST'])
+@app.route('/hosted/<suuid:room>', methods=['GET', 'POST'])
 def host_room(room: UUID):
     room = Room.get(id=room)
     if room is None:

WebHostLib/templates/host_room.html

@@ -1,19 +1,22 @@
 {% extends 'layout.html' %}
 
 {% block head %}
-    <title>Multiworld {{ room.id }}</title>
+    <title>Multiworld {{ room.id|suuid }}</title>
     <link rel="stylesheet" type="text/css" href="{{ static_autoversion("host_room.css") }}"/>
 {% endblock %}
 
 {% block body %}
     <div id="host-room">
         {% if room.owner == session["_id"] %}
-            Room created from <a href="{{ url_for("view_seed", seed=room.seed.id) }}">Seed #{{ room.seed.id }}</a><br>
+            Room created from <a href="{{ url_for("view_seed", seed=room.seed.id) }}">Seed #{{ room.seed.id|suuid }}</a>
+            <br>
         {% endif %}
         {% if room.tracker %}
-            This room has a <a href="{{ url_for("get_tracker", tracker=room.tracker) }}">Multiworld Tracker</a> enabled.<br>
+            This room has a <a href="{{ url_for("get_tracker", tracker=room.tracker) }}">Multiworld Tracker</a> enabled.
+            <br>
         {% endif %}
-        This room will be closed after {{ room.timeout//60//60 }} hours of inactivity. Should you wish to continue later,
+        This room will be closed after {{ room.timeout//60//60 }} hours of inactivity. Should you wish to continue
+        later,
         you can simply refresh this page and the server will be started again.<br>
         {% if room.owner == session["_id"] %}
             <form method=post>

WebHostLib/templates/macros.html

@@ -1,7 +1,7 @@
 {% macro list_rooms(rooms) -%}
     <ul>
         {% for room in rooms %}
-            <li><a href="{{ url_for("host_room", room=room.id) }}">Room #{{ room.id }}</a></li>
+            <li><a href="{{ url_for("host_room", room=room.id) }}">Room #{{ room.id|suuid }}</a></li>
         {% endfor %}
         {{ caller() }}
     </ul>

WebHostLib/templates/uploads.html

@@ -36,8 +36,9 @@
                     <tbody>
                     {% for room in rooms %}
                         <tr>
-                            <td><a href="{{ url_for("view_seed", seed=room.seed.id) }}">{{ room.seed.id }}</a></td>
-                            <td><a href="{{ url_for("host_room", room=room.id) }}">{{ room.id }}</a></td>
+                            <td><a href="{{ url_for("view_seed", seed=room.seed.id) }}">{{ room.seed.id|suuid }}</a>
+                            </td>
+                            <td><a href="{{ url_for("host_room", room=room.id) }}">{{ room.id|suuid }}</a></td>
                             <td>{{ room.seed.multidata.names[0]|length }} Total:
                                 {{ room.seed.multidata.names[0]|join(", ")|truncate(256, False, " ...") }}</td>
                             <td>{{ room.creation_time.strftime("%Y-%m-%d %H:%M") }}</td>

WebHostLib/templates/view_seed.html

@@ -2,7 +2,7 @@
 {% import "macros.html" as macros %}
 
 {% block head %}
-    <title>Multiworld Seed {{ seed.id }}</title>
+    <title>Multiworld Seed {{ seed.id|suuid }}</title>
     <link rel="stylesheet" type="text/css" href="{{ static_autoversion("view_seed.css") }}"/>
     <script type="application/ecmascript" src="{{ static_autoversion("view_seed.js") }}"></script>
 {% endblock %}
@@ -15,7 +15,7 @@
                 <tbody>
                 <tr>
                     <td>Seed:&nbsp;</td>
-                        <td>{{ seed.id }}</td>
+                    <td>{{ seed.id|suuid }}</td>
                 </tr>
                 <tr>
                     <td>Created:&nbsp;</td>

WebHostLib/tracker.py

@@ -248,7 +248,7 @@ def get_static_room_data(room: Room):
     return result
 
 
-@app.route('/tracker/<uuid:tracker>')
+@app.route('/tracker/<suuid:tracker>')
 @cache.memoize(timeout=30)  # update every 30 seconds
 def get_tracker(tracker: UUID):
     room = Room.get(tracker=tracker)