Add an action confirmation form, related to #20

admin/freeposte/admin/forms.py

@@ -31,6 +31,10 @@ class DestinationField(fields.SelectMultipleField):
                 raise validators.ValidationError("Invalid email address.")
 
 
+class ConfirmationForm(Form):
+    submit = fields.SubmitField('Confirm')
+
+
 class LoginForm(Form):
     email = fields.StringField('E-mail', [validators.Email()])
     pw = fields.PasswordField('Password', [validators.DataRequired()])

admin/freeposte/admin/templates/confirm.html

@@ -0,0 +1,14 @@
+{% extends "base.html" %}
+
+{% block title %}
+Confirm action
+{% endblock %}
+
+{% block subtitle %}
+{{ action }}
+{% endblock %}
+
+{% block box_content %}
+<p>You are about to {{ action }}. Please confirm your action.</p>
+{{ macros.form(form) }}
+{% endblock %}

admin/freeposte/admin/utils.py

@@ -1,7 +1,25 @@
-from freeposte.admin import models
+from freeposte.admin import models, forms
 
 import flask
 import flask_login
+import functools
+
+
+def confirmation_required(action):
+    """ View decorator that asks for a confirmation first.
+    """
+    def inner(function):
+        @functools.wraps(function)
+        def wrapper(*args, **kwargs):
+            form = forms.ConfirmationForm()
+            if form.validate_on_submit():
+                return function(*args, **kwargs)
+            return flask.render_template(
+                "confirm.html", action=action.format(*args, **kwargs),
+                form=form
+            )
+        return wrapper
+    return inner
 
 
 def get_domain_admin(domain_name):