Upgrade Doorkeeper to 4.4.1 (#8197)

Gemfile

@@ -41,7 +41,7 @@ gem 'omniauth-cas', '~> 1.1'
 gem 'omniauth-saml', '~> 1.10'
 gem 'omniauth', '~> 1.2'
 
-gem 'doorkeeper', '~> 4.2', '< 4.3'
+gem 'doorkeeper', '~> 4.4'
 gem 'fast_blank', '~> 1.0'
 gem 'fastimage'
 gem 'goldfinger', '~> 2.1'

Gemfile.lock

@@ -181,7 +181,7 @@ GEM
     docile (1.3.0)
     domain_name (0.5.20180417)
       unf (>= 0.0.5, < 1.0.0)
-    doorkeeper (4.2.6)
+    doorkeeper (4.4.1)
       railties (>= 4.2)
     dotenv (2.2.2)
     dotenv-rails (2.2.2)
@@ -670,7 +670,7 @@ DEPENDENCIES
   devise (~> 4.4)
   devise-two-factor (~> 3.0)
   devise_pam_authenticatable2 (~> 9.1)
-  doorkeeper (~> 4.2, < 4.3)
+  doorkeeper (~> 4.4)
   dotenv-rails (~> 2.2, < 2.3)
   fabrication (~> 2.20)
   faker (~> 1.8)

db/migrate/20171201000000_change_account_id_nonnullable_in_lists.rb

@@ -1,5 +1,3 @@
-require Rails.root.join('lib', 'mastodon', 'migration_helpers')
-
 class ChangeAccountIdNonnullableInLists < ActiveRecord::Migration[5.1]
   def change
     change_column_null :lists, :account_id, false

db/migrate/20180814171349_add_confidential_to_doorkeeper_application.rb

@@ -0,0 +1,23 @@
+require Rails.root.join('lib', 'mastodon', 'migration_helpers')
+
+class AddConfidentialToDoorkeeperApplication < ActiveRecord::Migration[5.2]
+  include Mastodon::MigrationHelpers
+
+  disable_ddl_transaction!
+
+  def up
+    safety_assured do
+      add_column_with_default(
+        :oauth_applications,
+        :confidential,
+        :boolean,
+        allow_null: false,
+        default: true # maintaining backwards compatibility: require secrets
+      )
+    end
+  end
+
+  def down
+    remove_column :oauth_applications, :confidential
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2018_08_13_113448) do
+ActiveRecord::Schema.define(version: 2018_08_14_171349) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -349,6 +349,7 @@
     t.string "website"
     t.string "owner_type"
     t.bigint "owner_id"
+    t.boolean "confidential", default: true, null: false
     t.index ["owner_id", "owner_type"], name: "index_oauth_applications_on_owner_id_and_owner_type"
     t.index ["uid"], name: "index_oauth_applications_on_uid", unique: true
   end