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Do not allow special chars in usernames #1784

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Merged
Didayolo merged 1 commit into from
Mar 21, 2025
Merged

Do not allow special chars in usernames #1784

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14 changes: 8 additions & 6 deletions src/apps/profiles/forms.py
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
import re
from django import forms
from django.contrib.auth.forms import UserCreationForm
from .models import User
Expand All @@ -11,12 +12,13 @@ class SignUpForm(UserCreationForm):

def clean_username(self):
data = self.cleaned_data["username"]
if not data.islower():
raise forms.ValidationError("Usernames should be in lowercase")
if not data.isalnum():
raise forms.ValidationError(
"Usernames should not contain special characters."
)

# Check if username has allowed characters only
# Allow only lowercase letters, numbers, hyphens, and underscores
if not re.match(r"^[a-z0-9_-]+$", data):
raise forms.ValidationError("Username can only contain lowercase letters, numbers, hyphens, and underscores.")

# Check username length
if (len(data) > 15) or (len(data) < 5):
raise forms.ValidationError(
"Username must have at least 5 characters and at most 15 characters"
Expand Down