Fix link protection when nick contains capital letters

strolchibot/models.py

@@ -9,6 +9,11 @@ class TextCommand(models.Model):
     text = models.TextField(max_length=500)
     active = models.BooleanField(default=True)
 
+    def save(self, force_insert=False, force_update=False, using=None, update_fields=None):
+        if self.command[0] == "!":
+            self.command = self.command[1:]
+        super().save(force_insert, force_update, using, update_fields)
+
 
 class Klassenbuch(models.Model):
     name = models.CharField(max_length=50)
@@ -23,6 +28,10 @@ class Timer(models.Model):
 class LinkPermit(models.Model):
     nick = models.CharField(max_length=25)
 
+    def save(self, force_insert=False, force_update=False, using=None, update_fields=None):
+        self.nick = self.nick.lower()
+        super().save(force_insert, force_update, using, update_fields)
+
 
 class LinkWhitelist(models.Model):
     url = models.URLField()

twitchbot/link_protection.py

@@ -2,9 +2,10 @@ import re
 import sqlite3
 from datetime import datetime, timedelta
 
-import config
 from twitchio.ext import commands
 
+import config
+
 
 @commands.core.cog(name="LinkProtection")
 class LinkProtection:
@@ -104,6 +105,8 @@ class LinkProtection:
         if user[0] == "@":
             user = user[1:]
 
+        user = user.lower()
+
         if ctx.author.is_mod:
             if permanent:
                 self.give_user_permanent_permit(user)