Add server config file

app/routes.py

@@ -22,13 +22,16 @@ import bleach
 import urllib
 import json
 import re
-
 ##########################
 #### Config variables ####
 ##########################
-NITTERINSTANCE = "https://nitter.net/" # Must be https://.../ 
+config = json.load(open('yotter-config.json'))
+##########################
+#### Config variables ####
+##########################
+NITTERINSTANCE = config['nitterInstance'] # Must be https://.../ 
 YOUTUBERSS = "https://www.youtube.com/feeds/videos.xml?channel_id="
-REGISTRATIONS = True
+REGISTRATIONS = config['registrations']
 
 ##########################
 #### Global variables ####
@@ -457,15 +460,21 @@ def allowed_file(filename):
 
 @app.route('/register', methods=['GET', 'POST'])
 def register():
+    global REGISTRATIONS
+    count = db.session.query(User).count()
     if current_user.is_authenticated:
         return redirect(url_for('index'))
 
+    if count >= config['maxInstanceUsers']:
+        REGISTRATIONS = False
+        
     form = RegistrationForm()
     if form.validate_on_submit():
         if User.query.filter_by(username=form.username.data).first():
             flash("This username is taken! Try with another.")
             return redirect(request.referrer)
 
+
         user = User(username=form.username.data)
         user.set_password(form.password.data)
         db.session.add(user)

app/templates/_closed_registrations.html

@@ -1,6 +1,6 @@
 <div class="ui center aligned text container">
     <div class="ui row">
-        <img alt="Closed registrations image" class="ui image" src="{{ url_for('static',filename='img/closed.png') }}">
+        <img alt="Closed registrations image" class="ui centered medium image" src="{{ url_for('static',filename='img/closed.png') }}">
     </div>
 
     <div class="ui row">

yotter-config.json

@@ -0,0 +1,6 @@
+{
+	"nitterInstance": "https://nitter.net/",
+	"registrations": true,
+	"maxInstanceUsers": 1,
+	"proxyAll": true
+}