Add client-side validation in password change forms (#14564)

* Fix client-side username validation at registration

It used the Account::USERNAME_RE regexp which is for *remote* users,
local user validation is stricter. Also take into account max username length.

* Add client-side form validation for password change

* Add client-side form validation to dedicated registration form

Previous changes only applied to the /about page, not the dedicated form on
/auth

5 files changed, 21 insertions, 9 deletions

diff --git a/app/javascript/packs/public.js b/app/javascript/packs/public.js
index 777182b7f..551e281a8 100644
--- a/app/javascript/packs/public.js
+++ b/app/javascript/packs/public.js
@@ -126,6 +126,18 @@ function main() {
       }
     });
 
+    delegate(document, '#user_password,#user_password_confirmation', 'input', () => {
+      const password = document.getElementById('user_password');
+      const confirmation = document.getElementById('user_password_confirmation');
+      if (!confirmation) return;
+
+      if (password.value && password.value !== confirmation.value) {
+        confirmation.setCustomValidity((new IntlMessageFormat(messages['password_confirmation.mismatching'] || 'Password confirmation does not match', locale)).format());
+      } else {
+        confirmation.setCustomValidity('');
+      }
+    });
+
     delegate(document, '.custom-emoji', 'mouseover', getEmojiAnimationHandler('data-original'));
     delegate(document, '.custom-emoji', 'mouseout', getEmojiAnimationHandler('data-static'));
 
diff --git a/app/views/about/_registration.html.haml b/app/views/about/_registration.html.haml
index f65e67427..336acad6a 100644
--- a/app/views/about/_registration.html.haml
+++ b/app/views/about/_registration.html.haml
@@ -4,7 +4,7 @@
 
     .fields-group
       = f.simple_fields_for :account do |account_fields|
-        = account_fields.input :username, wrapper: :with_label, label: false, required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.username'), :autocomplete => 'off', placeholder: t('simple_form.labels.defaults.username'), pattern: Account::USERNAME_RE.source }, append: "@#{site_hostname}", hint: false, disabled: closed_registrations?
+        = account_fields.input :username, wrapper: :with_label, label: false, required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.username'), :autocomplete => 'off', placeholder: t('simple_form.labels.defaults.username'), pattern: '[a-z0-9_]+', maxlength: 30 }, append: "@#{site_hostname}", hint: false, disabled: closed_registrations?
 
       = f.input :email, placeholder: t('simple_form.labels.defaults.email'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.email'), :autocomplete => 'off' }, hint: false, disabled: closed_registrations?
       = f.input :password, placeholder: t('simple_form.labels.defaults.password'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.password'), :autocomplete => 'off', :minlength => User.password_length.first, :maxlength => User.password_length.last }, hint: false, disabled: closed_registrations?
diff --git a/app/views/auth/passwords/edit.html.haml b/app/views/auth/passwords/edit.html.haml
index 383d44f00..114a74454 100644
--- a/app/views/auth/passwords/edit.html.haml
+++ b/app/views/auth/passwords/edit.html.haml
@@ -1,14 +1,14 @@
 - content_for :page_title do
   = t('auth.set_new_password')
 
-= simple_form_for(resource, as: resource_name, url: password_path(resource_name), html: { method: :put }) do |f|
+= simple_form_for(resource, as: resource_name, url: password_path(resource_name), html: { method: :put, novalidate: false }) do |f|
   = render 'shared/error_messages', object: resource
 
   - if !use_seamless_external_login? || resource.encrypted_password.present?
     = f.input :reset_password_token, as: :hidden
 
     .fields-group
-      = f.input :password, wrapper: :with_label, autofocus: true, label: t('simple_form.labels.defaults.new_password'), input_html: { 'aria-label' => t('simple_form.labels.defaults.new_password'), :autocomplete => 'off' }, required: true
+      = f.input :password, wrapper: :with_label, autofocus: true, label: t('simple_form.labels.defaults.new_password'), input_html: { 'aria-label' => t('simple_form.labels.defaults.new_password'), :autocomplete => 'off', :minlength => User.password_length.first, :maxlength => User.password_length.last }, required: true
     .fields-group
       = f.input :password_confirmation, wrapper: :with_label, label: t('simple_form.labels.defaults.confirm_new_password'), input_html: { 'aria-label' => t('simple_form.labels.defaults.confirm_new_password'), :autocomplete => 'off' }, required: true
 
diff --git a/app/views/auth/registrations/edit.html.haml b/app/views/auth/registrations/edit.html.haml
index a155c75c9..4a46b27a9 100644
--- a/app/views/auth/registrations/edit.html.haml
+++ b/app/views/auth/registrations/edit.html.haml
@@ -5,7 +5,7 @@
 
 %h3= t('auth.security')
 
-= simple_form_for(resource, as: resource_name, url: registration_path(resource_name), html: { method: :put, class: 'auth_edit' }) do |f|
+= simple_form_for(resource, as: resource_name, url: registration_path(resource_name), html: { method: :put, class: 'auth_edit', novalidate: false }) do |f|
   = render 'shared/error_messages', object: resource
 
   - if !use_seamless_external_login? || resource.encrypted_password.present?
@@ -17,7 +17,7 @@
 
     .fields-row
       .fields-row__column.fields-group.fields-row__column-6
-        = f.input :password, wrapper: :with_label, label: t('simple_form.labels.defaults.new_password'), input_html: { 'aria-label' => t('simple_form.labels.defaults.new_password'), :autocomplete => 'off' }, hint: t('simple_form.hints.defaults.password'), disabled: current_account.suspended?
+        = f.input :password, wrapper: :with_label, label: t('simple_form.labels.defaults.new_password'), input_html: { 'aria-label' => t('simple_form.labels.defaults.new_password'), :autocomplete => 'off', :minlength => User.password_length.first, :maxlength => User.password_length.last }, hint: t('simple_form.hints.defaults.password'), disabled: current_account.suspended?
       .fields-row__column.fields-group.fields-row__column-6
         = f.input :password_confirmation, wrapper: :with_label, label: t('simple_form.labels.defaults.confirm_new_password'), input_html: { 'aria-label' => t('simple_form.labels.defaults.confirm_new_password'), :autocomplete => 'off' }, disabled: current_account.suspended?
 
diff --git a/app/views/auth/registrations/new.html.haml b/app/views/auth/registrations/new.html.haml
index 457bc1d23..d5698b426 100644
--- a/app/views/auth/registrations/new.html.haml
+++ b/app/views/auth/registrations/new.html.haml
@@ -4,7 +4,7 @@
 - content_for :header_tags do
   = render partial: 'shared/og', locals: { description: description_for_sign_up }
 
-= simple_form_for(resource, as: resource_name, url: registration_path(resource_name)) do |f|
+= simple_form_for(resource, as: resource_name, url: registration_path(resource_name), html: { novalidate: false }) do |f|
   = render 'shared/error_messages', object: resource
 
   - if @invite.present? && @invite.autofollow?
@@ -14,13 +14,13 @@
 
   = f.simple_fields_for :account do |ff|
     .fields-group
-      = ff.input :username, wrapper: :with_label, autofocus: true, label: t('simple_form.labels.defaults.username'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.username'), :autocomplete => 'off' }, append: "@#{site_hostname}", hint: t('simple_form.hints.defaults.username', domain: site_hostname)
+      = ff.input :username, wrapper: :with_label, autofocus: true, label: t('simple_form.labels.defaults.username'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.username'), :autocomplete => 'off', pattern: '[a-z0-9_]+', maxlength: 30 }, append: "@#{site_hostname}", hint: t('simple_form.hints.defaults.username', domain: site_hostname)
 
   .fields-group
     = f.input :email, wrapper: :with_label, label: t('simple_form.labels.defaults.email'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.email'), :autocomplete => 'off' }
 
   .fields-group
-    = f.input :password, wrapper: :with_label, label: t('simple_form.labels.defaults.password'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.password'), :autocomplete => 'off' }
+    = f.input :password, wrapper: :with_label, label: t('simple_form.labels.defaults.password'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.password'), :autocomplete => 'off', :minlength => User.password_length.first, :maxlength => User.password_length.last }
 
   .fields-group
     = f.input :password_confirmation, wrapper: :with_label, label: t('simple_form.labels.defaults.confirm_password'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.confirm_password'), :autocomplete => 'off' }
@@ -33,7 +33,7 @@
   = f.input :invite_code, as: :hidden
 
   .fields-group
-    = f.input :agreement, as: :boolean, wrapper: :with_label, label: whitelist_mode? ? t('auth.checkbox_agreement_without_rules_html', terms_path: terms_path) : t('auth.checkbox_agreement_html', rules_path: about_more_path, terms_path: terms_path)
+    = f.input :agreement, as: :boolean, wrapper: :with_label, label: whitelist_mode? ? t('auth.checkbox_agreement_without_rules_html', terms_path: terms_path) : t('auth.checkbox_agreement_html', rules_path: about_more_path, terms_path: terms_path), required: true
 
   .actions
     = f.button :button, @invite.present? ? t('auth.register') : sign_up_message, type: :submit