Application prefs section (#2758)

* Add code for creating/managing apps to settings section

* Add specs for app changes

* Fix controller spec

* Fix view file I pasted over by mistake

* Add locale strings. Add 'my apps' to nav

* Add Client ID/Secret to App page. Add some visual separation

* Fix rubocop warnings

* Fix embarrassing typo

I lost an `end` statement while fixing a merge conflict.

* Add code for creating/managing apps to settings section

- Add specs for app changes
- Add locale strings. Add 'my apps' to nav
- Add Client ID/Secret to App page. Add some visual separation
- Fix some bugs/warnings

* Update to match code standards

* Trigger notification

* Add warning about not sharing API secrets

* Tweak spec a bit

* Cleanup fixture creation by using let!

* Remove unused key

* Add foreign key for application<->user

15 files changed, 362 insertions, 4 deletions

diff --git a/app/controllers/settings/applications_controller.rb b/app/controllers/settings/applications_controller.rb
new file mode 100644
index 000000000..b8f114455
--- /dev/null
+++ b/app/controllers/settings/applications_controller.rb
@@ -0,0 +1,65 @@
+# frozen_string_literal: true
+
+class Settings::ApplicationsController < ApplicationController
+  layout 'admin'
+
+  before_action :authenticate_user!
+
+  def index
+    @applications = current_user.applications.page(params[:page])
+  end
+
+  def new
+    @application = Doorkeeper::Application.new(
+      redirect_uri: Doorkeeper.configuration.native_redirect_uri,
+      scopes: 'read write follow'
+    )
+  end
+
+  def show
+    @application = current_user.applications.find(params[:id])
+  end
+
+  def create
+    @application = current_user.applications.build(application_params)
+    if @application.save
+      redirect_to settings_applications_path, notice: I18n.t('application.created')
+    else
+      render :new
+    end
+  end
+
+  def update
+    @application = current_user.applications.find(params[:id])
+    if @application.update_attributes(application_params)
+      redirect_to settings_applications_path, notice: I18n.t('generic.changes_saved_msg')
+    else
+      render :show
+    end
+  end
+
+  def destroy
+    @application = current_user.applications.find(params[:id])
+    @application.destroy
+    redirect_to settings_applications_path, notice: t('application.destroyed')
+  end
+
+  def regenerate
+    @application = current_user.applications.find(params[:application_id])
+    @access_token = current_user.token_for_app(@application)
+    @access_token.destroy
+
+    redirect_to settings_application_path(@application), notice: t('access_token.regenerated')
+  end
+
+  private
+
+  def application_params
+    params.require(:doorkeeper_application).permit(
+      :name,
+      :redirect_uri,
+      :scopes,
+      :website
+    )
+  end
+end
diff --git a/app/models/user.rb b/app/models/user.rb
index 96a2d09b7..02b1b26ee 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -46,6 +46,8 @@ class User < ApplicationRecord
   belongs_to :account, inverse_of: :user, required: true
   accepts_nested_attributes_for :account
 
+  has_many :applications, class_name: 'Doorkeeper::Application', as: :owner
+
   validates :locale, inclusion: I18n.available_locales.map(&:to_s), if: :locale?
   validates_with BlacklistedEmailValidator, if: :email_changed?
 
@@ -108,6 +110,17 @@ class User < ApplicationRecord
     settings.noindex
   end
 
+  def token_for_app(a)
+    return nil if a.nil? || a.owner != self
+    Doorkeeper::AccessToken
+      .find_or_create_by(application_id: a.id, resource_owner_id: id) do |t|
+
+      t.scopes = a.scopes
+      t.expires_in = Doorkeeper.configuration.access_token_expires_in
+      t.use_refresh_token = Doorkeeper.configuration.refresh_token_enabled?
+    end
+  end
+
   def activate_session(request)
     session_activations.activate(session_id: SecureRandom.hex,
                                  user_agent: request.user_agent,
diff --git a/app/views/settings/applications/_fields.html.haml b/app/views/settings/applications/_fields.html.haml
new file mode 100644
index 000000000..9dbe23466
--- /dev/null
+++ b/app/views/settings/applications/_fields.html.haml
@@ -0,0 +1,4 @@
+= f.input :name, hint: t('activerecord.attributes.doorkeeper/application.name')
+= f.input :website, hint: t('activerecord.attributes.doorkeeper/application.website')
+= f.input :redirect_uri, hint: t('activerecord.attributes.doorkeeper/application.redirect_uri')
+= f.input :scopes, hint: t('activerecord.attributes.doorkeeper/application.scopes')
diff --git a/app/views/settings/applications/index.html.haml b/app/views/settings/applications/index.html.haml
new file mode 100644
index 000000000..17035f96c
--- /dev/null
+++ b/app/views/settings/applications/index.html.haml
@@ -0,0 +1,20 @@
+- content_for :page_title do
+  = t('doorkeeper.applications.index.title')
+
+%table.table
+  %thead
+    %tr
+      %th= t('doorkeeper.applications.index.application')
+      %th= t('doorkeeper.applications.index.scopes')
+      %th= t('doorkeeper.applications.index.created_at')
+      %th
+  %tbody
+    - @applications.each do |application|
+      %tr
+        %td= link_to application.name, settings_application_path(application)
+        %th= application.scopes.map { |scope| t(scope, scope: [:doorkeeper, :scopes]) }.join('<br />').html_safe
+        %td= l application.created_at
+        %td= table_link_to 'show', t('doorkeeper.applications.index.show'), settings_application_path(application)
+        %td= table_link_to 'times', t('doorkeeper.applications.index.delete'), settings_application_path(application), method: :delete, data: { confirm: t('doorkeeper.applications.confirmations.destroy') }
+= paginate @applications
+= link_to t('add_new'), new_settings_application_path, class: 'button'
diff --git a/app/views/settings/applications/new.html.haml b/app/views/settings/applications/new.html.haml
new file mode 100644
index 000000000..61406a31f
--- /dev/null
+++ b/app/views/settings/applications/new.html.haml
@@ -0,0 +1,9 @@
+- content_for :page_title do
+  = t('doorkeeper.applications.new.title')
+  
+.form-container
+  = simple_form_for @application, url: settings_applications_path do |f|
+    = render 'fields', f:f
+    
+    .actions
+      = f.button :button, t('.create'), type: :submit
diff --git a/app/views/settings/applications/show.html.haml b/app/views/settings/applications/show.html.haml
new file mode 100644
index 000000000..9f1a11986
--- /dev/null
+++ b/app/views/settings/applications/show.html.haml
@@ -0,0 +1,28 @@
+- content_for :page_title do
+  = t('doorkeeper.applications.show.title', name: @application.name)
+
+
+%p.hint= t('application.warning')
+  
+%div
+  %h3= t('application.uid')
+  %code= @application.uid
+
+%div 
+  %h3= t('application.secret')
+  %code= @application.secret
+
+%div
+  %h3= t('access_token.your_token')
+  %code= current_user.token_for_app(@application).token
+
+= link_to t('access_token.regenerate'), settings_application_regenerate_path(@application), method: :put,  class: 'button'
+
+%hr
+
+= simple_form_for @application, url: settings_application_path(@application), method: :put do |f|
+  = render 'fields', f:f
+    
+  .actions
+    = f.button :button, t('generic.save_changes'), type: :submit
+
diff --git a/config/initializers/doorkeeper.rb b/config/initializers/doorkeeper.rb
index 056a3651a..689e2ac4a 100644
--- a/config/initializers/doorkeeper.rb
+++ b/config/initializers/doorkeeper.rb
@@ -50,7 +50,7 @@ Doorkeeper.configure do
   # Optional parameter :confirmation => true (default false) if you want to enforce ownership of
   # a registered application
   # Note: you must also run the rails g doorkeeper:application_owner generator to provide the necessary support
-  # enable_application_owner :confirmation => true
+  enable_application_owner
 
   # Define access token scopes for your provider
   # For more information go to
diff --git a/config/locales/doorkeeper.en.yml b/config/locales/doorkeeper.en.yml
index 6412b8b48..fa0a7babf 100644
--- a/config/locales/doorkeeper.en.yml
+++ b/config/locales/doorkeeper.en.yml
@@ -3,8 +3,10 @@ en:
   activerecord:
     attributes:
       doorkeeper/application:
-        name: Name
+        name: Application Name
+        website: Application Website
         redirect_uri: Redirect URI
+        scopes: Scopes
     errors:
       models:
         doorkeeper/application:
@@ -37,9 +39,12 @@ en:
         name: Name
         new: New Application
         title: Your applications
+        show: Show
+        delete: Delete
       new:
         title: New Application
       show:
+        title: 'Application: %{name}'
         actions: Actions
         application_id: Application Id
         callback_urls: Callback urls
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 97f46c3af..fbcef03bd 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -33,6 +33,10 @@ en:
     user_count_after: users
     user_count_before: Home to
     what_is_mastodon: What is Mastodon?
+  access_token:
+    your_token: Your Access Token
+    regenerate: Regenerate Access Token
+    regenerated: Access Token Regenerated
   accounts:
     follow: Follow
     followers: Followers
@@ -226,6 +230,12 @@ en:
     settings: 'Change e-mail preferences: %{link}'
     signature: Mastodon notifications from %{instance}
     view: 'View:'
+  application:
+    created: Application Created
+    destroyed: Application Destroyed
+    uid: Client ID
+    secret: Client Secret
+    warning: Be very careful with this data. Never share it with anyone other than authorized applications!    
   applications:
     invalid_url: The provided URL is invalid
   auth:
@@ -423,6 +433,7 @@ en:
     preferences: Preferences
     settings: Settings
     two_factor_authentication: Two-factor Authentication
+    your_apps: Your applications
   statuses:
     open_in_web: Open in web
     over_character_limit: character limit of %{max} exceeded
diff --git a/config/navigation.rb b/config/navigation.rb
index 535d033f5..6e04843ec 100644
--- a/config/navigation.rb
+++ b/config/navigation.rb
@@ -12,6 +12,7 @@ SimpleNavigation::Configuration.run do |navigation|
       settings.item :import, safe_join([fa_icon('cloud-upload fw'), t('settings.import')]), settings_import_url
       settings.item :export, safe_join([fa_icon('cloud-download fw'), t('settings.export')]), settings_export_url
       settings.item :authorized_apps, safe_join([fa_icon('list fw'), t('settings.authorized_apps')]), oauth_authorized_applications_url
+      settings.item :your_apps, safe_join([fa_icon('list fw'), t('settings.your_apps')]), settings_applications_url
       settings.item :follower_domains, safe_join([fa_icon('users fw'), t('settings.followers')]), settings_follower_domains_url
     end
 
diff --git a/config/routes.rb b/config/routes.rb
index 1a39dfeac..e8bc968f4 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -79,6 +79,11 @@ Rails.application.routes.draw do
     end
 
     resource :follower_domains, only: [:show, :update]
+
+    resources :applications do
+      put :regenerate
+    end
+
     resource :delete, only: [:show, :destroy]
 
     resources :sessions, only: [:destroy]
diff --git a/db/migrate/20170427011934_re_add_owner_to_application.rb b/db/migrate/20170427011934_re_add_owner_to_application.rb
new file mode 100644
index 000000000..a41d71d2a
--- /dev/null
+++ b/db/migrate/20170427011934_re_add_owner_to_application.rb
@@ -0,0 +1,8 @@
+class ReAddOwnerToApplication < ActiveRecord::Migration[5.0]
+  def change
+    add_column :oauth_applications, :owner_id, :integer, null: true
+    add_column :oauth_applications, :owner_type, :string, null: true
+    add_index :oauth_applications, [:owner_id, :owner_type]
+    add_foreign_key :oauth_applications, :users, column: :owner_id, on_delete: :cascade
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 2501e451d..929a5fd01 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -216,8 +216,11 @@ ActiveRecord::Schema.define(version: 20170720000000) do
     t.string "scopes", default: "", null: false
     t.datetime "created_at"
     t.datetime "updated_at"
-    t.boolean "superapp", default: false, null: false
-    t.string "website"
+    t.boolean  "superapp",     default: false, null: false
+    t.string   "website"
+    t.integer  "owner_id"
+    t.string   "owner_type"
+    t.index ["owner_id", "owner_type"], name: "index_oauth_applications_on_owner_id_and_owner_type", using: :btree
     t.index ["uid"], name: "index_oauth_applications_on_uid", unique: true
   end
 
diff --git a/spec/controllers/settings/applications_controller_spec.rb b/spec/controllers/settings/applications_controller_spec.rb
new file mode 100644
index 000000000..fa27e6ec6
--- /dev/null
+++ b/spec/controllers/settings/applications_controller_spec.rb
@@ -0,0 +1,166 @@
+require 'rails_helper'
+
+describe Settings::ApplicationsController do
+  render_views
+  
+  let!(:user) { Fabricate(:user) }
+  let!(:app) { Fabricate(:application, owner: user) }
+  
+  before do
+    sign_in user, scope: :user
+  end
+
+  describe 'GET #index' do
+    let!(:other_app) { Fabricate(:application) }
+
+    it 'shows apps' do
+      get :index
+      expect(response).to have_http_status(:success)
+      expect(assigns(:applications)).to include(app)
+      expect(assigns(:applications)).to_not include(other_app)
+    end
+  end
+
+  
+  describe 'GET #show' do
+    it 'returns http success' do
+      get :show, params: { id: app.id }
+      expect(response).to have_http_status(:success)
+      expect(assigns[:application]).to eql(app)
+    end
+
+    it 'returns 404 if you dont own app' do
+      app.update!(owner: nil)
+
+      get :show, params: { id: app.id }
+      expect(response.status).to eq 404
+    end
+  end
+
+  describe 'GET #new' do
+    it 'works' do
+      get :new
+      expect(response).to have_http_status(:success)
+    end
+  end
+
+  describe 'POST #create' do
+    context 'success' do
+      def call_create
+        post :create, params: {
+               doorkeeper_application: {
+                 name: 'My New App',
+                 redirect_uri: 'urn:ietf:wg:oauth:2.0:oob',
+                 website: 'http://google.com',
+                 scopes: 'read write follow'
+               }
+             }
+        response
+      end
+
+      it 'creates an entry in the database' do
+        expect { call_create }.to change(Doorkeeper::Application, :count)
+      end
+      
+      it 'redirects back to applications page' do
+        expect(call_create).to redirect_to(settings_applications_path)
+      end
+    end
+
+    context 'failure' do
+      before do
+        post :create, params: {
+               doorkeeper_application: {
+                 name: '',
+                 redirect_uri: '',
+                 website: '',
+                 scopes: ''
+               }
+             }
+      end
+
+      it 'returns http success' do
+        expect(response).to have_http_status(:success)
+      end
+
+      it 'renders form again' do
+        expect(response).to render_template(:new)
+      end
+    end
+  end
+  
+  describe 'PATCH #update' do
+    context 'success' do
+      let(:opts) {
+        {
+          website: 'https://foo.bar/'
+        }
+      }
+
+      def call_update
+        patch :update, params: {
+                id: app.id,
+                doorkeeper_application: opts
+              }
+        response
+      end
+
+      it 'updates existing application' do
+        call_update
+        expect(app.reload.website).to eql(opts[:website])
+      end
+      
+      it 'redirects back to applications page' do
+        expect(call_update).to redirect_to(settings_applications_path)
+      end
+    end
+
+    context 'failure' do
+      before do
+        patch :update, params: {
+                id: app.id,
+                doorkeeper_application: {
+                  name: '',
+                  redirect_uri: '',
+                  website: '',
+                  scopes: ''
+                }
+              }
+      end
+
+      it 'returns http success' do
+        expect(response).to have_http_status(:success)
+      end
+
+      it 'renders form again' do
+        expect(response).to render_template(:show)
+      end
+    end
+  end
+
+  describe 'destroy' do
+    before do
+      post :destroy, params: { id: app.id }
+    end
+
+    it 'redirects back to applications page' do
+      expect(response).to redirect_to(settings_applications_path)
+    end
+
+    it 'removes the app' do
+      expect(Doorkeeper::Application.find_by(id: app.id)).to be_nil
+    end
+  end
+
+  describe 'regenerate' do
+    let(:token) { user.token_for_app(app) }
+    before do
+      expect(token).to_not be_nil
+      put :regenerate, params: { application_id: app.id }
+    end
+
+    it 'should create new token' do
+      expect(user.token_for_app(app)).to_not eql(token)
+    end
+  end
+end
diff --git a/spec/models/user_spec.rb b/spec/models/user_spec.rb
index ef45818b9..99aeca01b 100644
--- a/spec/models/user_spec.rb
+++ b/spec/models/user_spec.rb
@@ -286,4 +286,24 @@ RSpec.describe User, type: :model do
       Fabricate(:user)
     end
   end
+
+  describe 'token_for_app' do
+    let(:user) { Fabricate(:user) }
+    let(:app) { Fabricate(:application, owner: user) }
+
+    it 'returns a token' do
+      expect(user.token_for_app(app)).to be_a(Doorkeeper::AccessToken)
+    end
+
+    it 'persists a token' do
+      t = user.token_for_app(app)
+      expect(user.token_for_app(app)).to eql(t)
+    end
+
+    it 'is nil if user does not own app' do
+      app.update!(owner: nil)
+
+      expect(user.token_for_app(app)).to be_nil
+    end
+  end
 end