Check email in user clean (factorise code)

users/forms.py

@@ -147,21 +147,6 @@ class UserCreationForm(FormRevMixin, forms.ModelForm):
         super(UserCreationForm, self).__init__(*args, prefix=prefix, **kwargs)
         self.fields["email"].required = True
 
-    def clean_email(self):
-        new_email = self.cleaned_data.get("email")
-
-        if not new_email:
-            raise forms.ValidationError(
-                _("Email field cannot be empty.")
-            )
-
-        if not OptionalUser.objects.first().local_email_domain in new_email:
-            return new_email.lower()
-        else:
-            raise forms.ValidationError(
-                _("You can't use an internal address as your external address.")
-            )
-
     class Meta:
         model = Adherent
         fields = ("pseudo", "surname", "email")
@@ -358,18 +343,6 @@ class AdherentForm(FormRevMixin, FieldPermissionFormMixin, ModelForm):
         label=_("Force the move?"), initial=False, required=False
     )
 
-    def clean_email(self):
-        if not OptionalUser.objects.first().local_email_domain in self.cleaned_data.get(
-            "email"
-        ):
-            return self.cleaned_data.get("email").lower()
-        else:
-            raise forms.ValidationError(
-                _("You can't use a {} address.").format(
-                    OptionalUser.objects.first().local_email_domain
-                )
-            )
-
     def clean_telephone(self):
         """Verifie que le tel est présent si 'option est validée
         dans preferences"""
@@ -488,17 +461,6 @@ class AdherentCreationForm(AdherentForm):
             self.fields.pop("password1")
             self.fields.pop("password2")
 
-    def clean_email(self):
-        """Forbid empty email"""
-        new_email = self.cleaned_data.get("email")
-
-        if not new_email:
-            raise forms.ValidationError(
-                _("Email field cannot be empty.")
-            )
-
-        return new_email
-
     def clean_password2(self):
         """Verifie que password1 et 2 sont identiques (si nécessaire)"""
         send_email = self.cleaned_data.get("init_password_by_mail")
@@ -559,19 +521,6 @@ class AdherentEditForm(AdherentForm):
             "shortcuts_enabled",
         ]
 
-    def clean_email(self):
-        """Forbid empty email"""
-        original_email = self.user.email
-        new_email = self.cleaned_data.get("email")
-
-        # Allow empty emails only if the user had an empty email before
-        if original_email and not new_email:
-            raise forms.ValidationError(
-                _("Email field cannot be empty.")
-            )
-
-        return new_email
-
 
 class ClubForm(FormRevMixin, FieldPermissionFormMixin, ModelForm):
     """Formulaire de base d'edition d'un user. Formulaire de base, utilisé
@@ -873,25 +822,6 @@ class EmailSettingsForm(FormRevMixin, FieldPermissionFormMixin, ModelForm):
         if "local_email_enabled" in self.fields:
             self.fields["local_email_enabled"].label = _("Use local emails")
 
-    def clean_email(self):
-        original_email = self.user.email
-        new_email = self.cleaned_data.get("email")
-
-        # Allow empty emails only if the user had an empty email before
-        if original_email and not new_email:
-            raise forms.ValidationError(
-                _("Email field cannot be empty.")
-            )
-
-        if not OptionalUser.objects.first().local_email_domain in new_email:
-            return new_email.lower()
-        else:
-            raise forms.ValidationError(
-                _("You can't use a {} address.").format(
-                    OptionalUser.objects.first().local_email_domain
-                )
-            )
-
     class Meta:
         model = User
         fields = ["email", "local_email_enabled", "local_email_redirect"]

users/models.py

@@ -1323,32 +1323,35 @@ class User(
         self.__original_state = self.state
         self.__original_email = self.email
 
-    def clean(self, *args, **kwargs):
-        """Check if this pseudo is already used by any mailalias.
-        Better than raising an error in post-save and catching it"""
+    def clean_pseudo(self, *args, **kwargs):
         if EMailAddress.objects.filter(local_part=self.pseudo.lower()).exclude(
             user_id=self.id
         ):
             raise ValidationError(_("This username is already used."))
-        if (
-            not self.local_email_enabled
-            and not self.email
-            and not (self.state == self.STATE_FULL_ARCHIVE)
-        ):
-            raise ValidationError(
-                _(
-                    "There is neither a local email address nor an external"
-                    " email address for this user."
-                )
-            )
-        if self.local_email_redirect and not self.email:
-            raise ValidationError(
-                _(
-                    "You can't redirect your local emails if no external email"
-                    " address has been set."
+
+    def clean_email(self, *args, **kwargs):
+        # Allow empty emails if the user had an empty email before
+        if not self.email and (self.__original_email or not self.pk):
+            raise forms.ValidationError(
+                _("Email field cannot be empty.")
+            )
+
+        self.email = self.email.lower()
+
+        if OptionalUser.get_cached_value("local_email_domain") in self.email:
+            raise forms.ValidationError(
+                _("You can't use a {} address as an external contact address.").format(
+                    OptionalUser.get_cached_value("local_email_domain")
                 )
             )
 
+    def clean(self, *args, **kwargs):
+        super(User, self).clean(*args, **kwargs)
+        """Check if this pseudo is already used by any mailalias.
+        Better than raising an error in post-save and catching it"""
+        self.clean_pseudo(*args, **kwargs)
+        self.clean_email(*args, **kwargs)
+
     def __str__(self):
         return self.pseudo