fix: allow social account linking only to useraccounts of type PERSON

docker-app/qfieldcloud/core/apps.py

@@ -6,3 +6,29 @@ class CoreConfig(AppConfig):
 
     def ready(self):
         from qfieldcloud.core import signals  # noqa
+
+        # patch allauth's filter_users_by_email to only return users of type PERSON,
+        # as QFC SSO doesn't support ORGANIZATION users.
+        from allauth.account import utils as allauth_utils
+        from allauth.account import forms as allauth_forms
+        from allauth.account import auth_backends as allauth_auth_backends
+        from allauth.socialaccount import models as allauth_socialaccount_models
+
+        orig_filter_users_by_email = allauth_utils.filter_users_by_email
+
+        def patched_filter_users_by_email(email, is_active=None, prefer_verified=False):
+            from qfieldcloud.core.models import User
+
+            users = orig_filter_users_by_email(
+                email, is_active=is_active, prefer_verified=prefer_verified
+            )
+            person_users = list(filter(lambda u: u.type == User.Type.PERSON, users))
+
+            return person_users
+
+        allauth_utils.filter_users_by_email = patched_filter_users_by_email
+        allauth_forms.filter_users_by_email = patched_filter_users_by_email
+        allauth_auth_backends.filter_users_by_email = patched_filter_users_by_email
+        allauth_socialaccount_models.filter_users_by_email = (
+            patched_filter_users_by_email
+        )