add config for banned users and post prevention

suchwow/config.example.py

@@ -19,3 +19,4 @@ PRAW_USERNAME = 'xxxxxxxx'
 PRAW_PASSWORD = 'xxxxxxxx'
 SERVER_NAME = 'localhost'
 DISCORD_URL = 'xxxxxxx'
+BANNED_USERS = {'username': 'reason for the ban'}

suchwow/routes/post.py

@@ -4,6 +4,7 @@ from flask import send_from_directory, redirect, url_for, current_app
 from werkzeug.utils import secure_filename
 from secrets import token_urlsafe
 from suchwow import wownero
+from suchwow import config
 from suchwow.models import Post, Comment
 from suchwow.utils.decorators import login_required, profile_required
 from suchwow.utils.helpers import allowed_file
@@ -54,6 +55,11 @@ def read(id):
 @profile_required
 def create():
     if request.method == "POST":
+        submitter = session["auth"]["preferred_username"]
+        if submitter in config.BANNED_USERS:
+            reason = config.BANNED_USERS[submitter]
+            flash(f"You can't post for now: {reason}")
+            return redirect("/")
         post_title = request.form.get("title")
         # check if the post request has the file part
         if "file" not in request.files:
@@ -84,7 +90,7 @@ def create():
             post = Post(
                 title=post_title,
                 text=request.form.get("text", ""),
-                submitter=session["auth"]["preferred_username"],
+                submitter=submitter,
                 image_name=filename,
                 account_index=account_index,
                 address_index=0