add profile gpg key page to manage gpg keys

app/controllers/profiles/gpg_keys_controller.rb

+class Profiles::GpgKeysController < Profiles::ApplicationController
+  def index
+    @gpg_keys = current_user.gpg_keys
+    @gpg_key = GpgKey.new
+  end
+
+  def create
+    @gpg_key = current_user.gpg_keys.new(gpg_key_params)
+
+    if @gpg_key.save
+      redirect_to profile_gpg_keys_path
+    else
+      @gpg_keys = current_user.gpg_keys.select(&:persisted?)
+      render :index
+    end
+  end
+
+  def destroy
+    @gpp_key = current_user.gpg_keys.find(params[:id])
+    @gpp_key.destroy
+
+    respond_to do |format|
+      format.html { redirect_to profile_gpg_keys_url, status: 302 }
+      format.js { head :ok }
+    end
+  end
+
+  private
+
+  def gpg_key_params
+    params.require(:gpg_key).permit(:key)
+  end
+end

app/models/user.rb

@@ -76,6 +76,7 @@ class User < ActiveRecord::Base
     where(type.not_eq('DeployKey').or(type.eq(nil)))
   end, dependent: :destroy # rubocop:disable Cop/ActiveRecordDependent
   has_many :deploy_keys, -> { where(type: 'DeployKey') }, dependent: :destroy # rubocop:disable Cop/ActiveRecordDependent
+  has_many :gpg_keys, dependent: :destroy
 
   has_many :emails, dependent: :destroy # rubocop:disable Cop/ActiveRecordDependent
   has_many :personal_access_tokens, dependent: :destroy # rubocop:disable Cop/ActiveRecordDependent

app/views/layouts/nav/_profile.html.haml

@@ -43,6 +43,10 @@
       = link_to profile_keys_path, title: 'SSH Keys' do
         %span
           SSH Keys
+    = nav_link(controller: :gpg_keys) do
+      = link_to profile_gpg_keys_path, title: 'GPG Keys' do
+        %span
+          GPG Keys
     = nav_link(controller: :preferences) do
       = link_to profile_preferences_path, title: 'Preferences' do
         %span

app/views/profiles/gpg_keys/_form.html.haml

+%div
+  = form_for [:profile, @gpg_key], html: { class: 'js-requires-input' } do |f|
+    = form_errors(@gpg_key)
+
+    .form-group
+      = f.label :key, class: 'label-light'
+      = f.text_area :key, class: "form-control", rows: 8, required: true, placeholder: "Don't paste the private part of the GPG key. Paste the public part which begins with '-----BEGIN PGP PUBLIC KEY BLOCK-----'."
+
+    .prepend-top-default
+      = f.submit 'Add key', class: "btn btn-create"

app/views/profiles/gpg_keys/_key.html.haml

+%li.key-list-item
+  .pull-left.append-right-10
+    = icon 'key', class: "settings-list-icon hidden-xs"
+  .key-list-item-info
+    = key.emails.join(' ')
+    .description
+      = key.fingerprint
+  .pull-right
+    %span.key-created-at
+      created #{time_ago_with_tooltip(key.created_at)}
+    = link_to profile_gpg_key_path(key), data: { confirm: 'Are you sure?' }, method: :delete, class: "btn btn-transparent prepend-left-10" do
+      %span.sr-only Remove
+      = icon('trash')

app/views/profiles/gpg_keys/_key_table.html.haml

+- is_admin = local_assigns.fetch(:admin, false)
+
+- if @gpg_keys.any?
+  %ul.well-list
+    = render partial: 'profiles/gpg_keys/key', collection: @gpg_keys, locals: { is_admin: is_admin }
+- else
+  %p.settings-message.text-center
+    - if is_admin
+      There are no GPG keys associated with this account.
+    - else
+      There are no GPG keys with access to your account.

app/views/profiles/gpg_keys/index.html.haml

+- page_title "GPG Keys"
+= render 'profiles/head'
+
+.row.prepend-top-default
+  .col-lg-3.profile-settings-sidebar
+    %h4.prepend-top-0
+      = page_title
+    %p
+      GPG keys allow you to verify signed commits.
+  .col-lg-9
+    %h5.prepend-top-0
+      Add an GPG key
+    = render 'form'
+    %hr
+    %h5
+      Your GPG keys (#{@gpg_keys.count})
+    .append-bottom-default
+      = render 'key_table'

config/routes/profile.rb

@@ -23,6 +23,7 @@ resource :profile, only: [:show, :update] do
     end
     resource :preferences, only: [:show, :update]
     resources :keys, only: [:index, :show, :create, :destroy]
+    resources :gpg_keys, only: [:index, :create, :destroy]
     resources :emails, only: [:index, :create, :destroy]
     resources :chat_names, only: [:index, :new, :create, :destroy] do
       collection do

spec/features/profiles/gpg_keys_spec.rb

+require 'rails_helper'
+
+feature 'Profile > GPG Keys', :gpg do
+  let(:user) { create(:user) }
+
+  before do
+    login_as(user)
+  end
+
+  describe 'User adds a key' do
+    before do
+      visit profile_gpg_keys_path
+    end
+
+    scenario 'saves the new key' do
+      fill_in('Key', with: attributes_for(:gpg_key)[:key])
+      click_button('Add key')
+
+      expect(page).to have_content('mail@koffeinfrei.org lex@panter.ch')
+      expect(page).to have_content('4F4840A503964251CF7D7F5DC728AF10972E97C0')
+    end
+  end
+
+  scenario 'User sees their keys' do
+    create(:gpg_key, user: user)
+    visit profile_gpg_keys_path
+
+    expect(page).to have_content('mail@koffeinfrei.org lex@panter.ch')
+    expect(page).to have_content('4F4840A503964251CF7D7F5DC728AF10972E97C0')
+  end
+
+  scenario 'User removes a key via the key index' do
+    create(:gpg_key, user: user)
+    visit profile_gpg_keys_path
+
+    click_link('Remove')
+
+    expect(page).to have_content('Your GPG keys (0)')
+  end
+end