stages/password: Improve support for password managers

passbook/core/templates/partials/form.html

@@ -10,6 +10,9 @@
 </div>
 {% endif %}
 {% for field in form %}
+{% if field.field.widget|fieldtype == 'HiddenInput' %}
+    {{ field }}
+{% else %}
 <div class="pf-c-form__group {% if field.errors %} has-error {% endif %}">
     {% if field.field.widget|fieldtype == 'RadioSelect' %}
         <label class="pf-c-form__label" {% if field.field.required %}class="required" {% endif %}
@@ -66,4 +69,5 @@
     </p>
     {% endfor %}
 </div>
+{% endif %}
 {% endfor %}

passbook/stages/password/forms.py

@@ -23,6 +23,9 @@ def get_authentication_backends():
 class PasswordForm(forms.Form):
     """Password authentication form"""
 
+    username = forms.CharField(
+        widget=forms.HiddenInput(attrs={"autocomplete": "username"}), required=False
+    )
     password = forms.CharField(
         widget=forms.PasswordInput(
             attrs={

passbook/stages/password/stage.py

@@ -52,9 +52,20 @@ class PasswordStage(FormView, StageView):
     form_class = PasswordForm
     template_name = "stages/password/backend.html"
 
+    def get_form(self, form_class=None) -> PasswordForm:
+        form = super().get_form(form_class=form_class)
+
+        # If there's a pending user, update the `username` field
+        # this field is only used by password managers.
+        # If there's no user set, an error is raised later.
+        if PLAN_CONTEXT_PENDING_USER in self.executor.plan.context:
+            pending_user: User = self.executor.plan.context[PLAN_CONTEXT_PENDING_USER]
+            form.fields["username"].initial = pending_user.username
+
+        return form
+
     def get_context_data(self, **kwargs):
         kwargs = super().get_context_data(**kwargs)
-        kwargs["primary_action"] = _("Log in")
         recovery_flow = Flow.objects.filter(designation=FlowDesignation.RECOVERY)
         if recovery_flow.exists():
             kwargs["recovery_flow"] = recovery_flow.first()