Add spam honeypot field to register form

app/blueprints/users/account.py

@@ -104,6 +104,7 @@ class RegisterForm(FlaskForm):
 	email    = StringField(lazy_gettext("Email"), [InputRequired(), Email()])
 	password = PasswordField(lazy_gettext("Password"), [InputRequired(), Length(12, 100)])
 	question  = StringField(lazy_gettext("What is the result of the above calculation?"), [InputRequired()])
+	first_name = StringField("First name", [])
 	submit   = SubmitField(lazy_gettext("Register"))
 
 
@@ -117,6 +118,8 @@ def handle_register(form):
 		return user
 	elif user is None:
 		return
+	elif form.first_name.data != "":
+		abort(500)
 
 	user.password = make_flask_login_password(form.password.data)
 

app/scss/components.scss

@@ -283,3 +283,7 @@ blockquote {
 .form-group {
 	margin-bottom: 1rem !important;
 }
+
+input[name="first_name"] {
+	display: none;
+}

app/templates/base.html

@@ -16,7 +16,7 @@
 	{%- endif %}
 
 	<link rel="stylesheet" type="text/css" href="/static/libs/bootstrap.min.css?v=4">
-	<link rel="stylesheet" type="text/css" href="/static/custom.css?v=58">
+	<link rel="stylesheet" type="text/css" href="/static/custom.css?v=59">
 	<link rel="search" type="application/opensearchdescription+xml" href="/static/opensearch.xml" title="ContentDB" />
 
 	{% if noindex -%}

app/templates/users/register.html

@@ -34,6 +34,8 @@
 		</p>
 		{{ render_field(form.question, hint=_("Please prove that you are human")) }}
 
+		<input class="form-control" id="first_name" name="first_name" type="text" value="">
+
 		<p>
 			{{ _("By signing up, you agree to the <a href='/terms/' target='_blank'>Terms of Service</a> and <a href='/privacy_policy/' target='_blank'>Privacy Policy</a>.") }}
 		</p>