14 files changed, 24 insertions, 12 deletions
diff --git a/app/controllers/api/base_controller.rb b/app/controllers/api/base_controller.rb
index 045e7dd26..467225547 100644
--- a/app/controllers/api/base_controller.rb
+++ b/app/controllers/api/base_controller.rb
@@ -71,6 +71,7 @@ class Api::BaseController < ApplicationController
 
   def limit_param(default_limit)
     return default_limit unless params[:limit]
+
     [params[:limit].to_i.abs, default_limit * 2].min
   end
 
diff --git a/app/controllers/concerns/challengable_concern.rb b/app/controllers/concerns/challengable_concern.rb
index b29d90b3c..2995a25e0 100644
--- a/app/controllers/concerns/challengable_concern.rb
+++ b/app/controllers/concerns/challengable_concern.rb
@@ -32,7 +32,6 @@ module ChallengableConcern
     if params.key?(:form_challenge)
       if challenge_passed?
         session[:challenge_passed_at] = Time.now.utc
-        return
       else
         flash.now[:alert] = I18n.t('challenge.invalid_password')
         render_challenge
diff --git a/app/controllers/concerns/signature_verification.rb b/app/controllers/concerns/signature_verification.rb
index 18f549de9..f69c62ec2 100644
--- a/app/controllers/concerns/signature_verification.rb
+++ b/app/controllers/concerns/signature_verification.rb
@@ -131,7 +131,7 @@ module SignatureVerification
   end
 
   def verify_signature(account, signature, compare_signed_string)
-    if account.keypair.public_key.verify(OpenSSL::Digest::SHA256.new, signature, compare_signed_string)
+    if account.keypair.public_key.verify(OpenSSL::Digest.new('SHA256'), signature, compare_signed_string)
       @signed_request_account = account
       @signed_request_account
     end
diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 716df0bac..5512a9543 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -162,6 +162,8 @@ module ApplicationHelper
     end
 
     json = ActiveModelSerializers::SerializableResource.new(InitialStatePresenter.new(state_params), serializer: InitialStateSerializer).to_json
+    # rubocop:disable Rails/OutputSafety
     content_tag(:script, json_escape(json).html_safe, id: 'initial-state', type: 'application/json')
+    # rubocop:enable Rails/OutputSafety
   end
 end
diff --git a/app/lib/activitypub/linked_data_signature.rb b/app/lib/activitypub/linked_data_signature.rb
index f52a8f406..e853a970e 100644
--- a/app/lib/activitypub/linked_data_signature.rb
+++ b/app/lib/activitypub/linked_data_signature.rb
@@ -27,7 +27,7 @@ class ActivityPub::LinkedDataSignature
     document_hash  = hash(@json.without('signature'))
     to_be_verified = options_hash + document_hash
 
-    if creator.keypair.public_key.verify(OpenSSL::Digest::SHA256.new, Base64.decode64(signature), to_be_verified)
+    if creator.keypair.public_key.verify(OpenSSL::Digest.new('SHA256'), Base64.decode64(signature), to_be_verified)
       creator
     end
   end
@@ -44,7 +44,7 @@ class ActivityPub::LinkedDataSignature
     to_be_signed  = options_hash + document_hash
     keypair       = sign_with.present? ? OpenSSL::PKey::RSA.new(sign_with) : creator.keypair
 
-    signature = Base64.strict_encode64(keypair.sign(OpenSSL::Digest::SHA256.new, to_be_signed))
+    signature = Base64.strict_encode64(keypair.sign(OpenSSL::Digest.new('SHA256'), to_be_signed))
 
     @json.merge('signature' => options.merge('signatureValue' => signature))
   end
diff --git a/app/lib/entity_cache.rb b/app/lib/entity_cache.rb
index afdbd70f2..89cbf8d2c 100644
--- a/app/lib/entity_cache.rb
+++ b/app/lib/entity_cache.rb
@@ -16,7 +16,7 @@ class EntityCache
   end
 
   def emoji(shortcodes, domain)
-    shortcodes   = [shortcodes] unless shortcodes.is_a?(Array)
+    shortcodes   = Array(shortcodes)
     cached       = Rails.cache.read_multi(*shortcodes.map { |shortcode| to_key(:emoji, shortcode, domain) })
     uncached_ids = []
 
diff --git a/app/lib/formatter.rb b/app/lib/formatter.rb
index e6f5d7a63..7f217ae9f 100644
--- a/app/lib/formatter.rb
+++ b/app/lib/formatter.rb
@@ -135,6 +135,7 @@ class Formatter
     end
   end
 
+  # rubocop:disable Metrics/BlockNesting
   def encode_custom_emojis(html, emojis, animate = false)
     return html if emojis.empty?
 
@@ -189,6 +190,7 @@ class Formatter
 
     html
   end
+  # rubocop:enable Metrics/BlockNesting
 
   def rewrite(text, entities)
     text = text.to_s
diff --git a/app/lib/request.rb b/app/lib/request.rb
index bcba1eebf..89fbeaf95 100644
--- a/app/lib/request.rb
+++ b/app/lib/request.rb
@@ -114,7 +114,7 @@ class Request
 
   def signature
     algorithm = 'rsa-sha256'
-    signature = Base64.strict_encode64(@keypair.sign(OpenSSL::Digest::SHA256.new, signed_string))
+    signature = Base64.strict_encode64(@keypair.sign(OpenSSL::Digest.new('SHA256'), signed_string))
 
     "keyId=\"#{key_id}\",algorithm=\"#{algorithm}\",headers=\"#{signed_headers.keys.join(' ').downcase}\",signature=\"#{signature}\""
   end
diff --git a/app/lib/sidekiq_error_handler.rb b/app/lib/sidekiq_error_handler.rb
index b07817d45..ab555b1be 100644
--- a/app/lib/sidekiq_error_handler.rb
+++ b/app/lib/sidekiq_error_handler.rb
@@ -17,8 +17,10 @@ class SidekiqErrorHandler
 
   private
 
+  # rubocop:disable Naming/MethodParameterName
   def limit_backtrace_and_raise(e)
     e.set_backtrace(e.backtrace.first(BACKTRACE_LIMIT))
     raise e
   end
+  # rubocop:enable Naming/MethodParameterName
 end
diff --git a/app/models/preview_card.rb b/app/models/preview_card.rb
index 235928260..a6ec839f8 100644
--- a/app/models/preview_card.rb
+++ b/app/models/preview_card.rb
@@ -72,6 +72,7 @@ class PreviewCard < ApplicationRecord
   class << self
     private
 
+    # rubocop:disable Naming/MethodParameterName
     def image_styles(f)
       styles = {
         original: {
@@ -85,6 +86,7 @@ class PreviewCard < ApplicationRecord
       styles[:original][:format] = 'jpg' if f.instance.image_content_type == 'image/gif'
       styles
     end
+    # rubocop:enable Naming/MethodParameterName
   end
 
   private
diff --git a/app/models/user.rb b/app/models/user.rb
index 7e3b37475..dbee08988 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -253,16 +253,16 @@ class User < ApplicationRecord
     @shows_application ||= settings.show_application
   end
 
+  # rubocop:disable Naming/MethodParameterName
   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|
-
+    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
+  # rubocop:enable Naming/MethodParameterName
 
   def activate_session(request)
     session_activations.activate(session_id: SecureRandom.hex,
@@ -413,7 +413,7 @@ class User < ApplicationRecord
   end
 
   def notify_staff_about_pending_account!
-    User.staff.includes(:account).each do |u|
+    User.staff.includes(:account).find_each do |u|
       next unless u.allows_pending_account_emails?
       AdminMailer.new_pending_account(u.account, self).deliver_later
     end
diff --git a/app/services/fetch_link_card_service.rb b/app/services/fetch_link_card_service.rb
index beab449b2..7efa31054 100644
--- a/app/services/fetch_link_card_service.rb
+++ b/app/services/fetch_link_card_service.rb
@@ -78,6 +78,7 @@ class FetchLinkCardService < BaseService
     uri.host.blank? || TagManager.instance.local_url?(uri.to_s) || !%w(http https).include?(uri.scheme)
   end
 
+  # rubocop:disable Naming/MethodParameterName
   def mention_link?(a)
     @status.mentions.any? do |mention|
       a['href'] == ActivityPub::TagManager.instance.url_for(mention.account)
@@ -88,6 +89,7 @@ class FetchLinkCardService < BaseService
     # Avoid links for hashtags and mentions (microformats)
     a['rel']&.include?('tag') || a['class']&.match?(/u-url|h-card/) || mention_link?(a)
   end
+  # rubocop:enable Naming/MethodParameterName
 
   def attempt_oembed
     service         = FetchOEmbedService.new
diff --git a/app/services/notify_service.rb b/app/services/notify_service.rb
index 9364a6ae8..abd676494 100644
--- a/app/services/notify_service.rb
+++ b/app/services/notify_service.rb
@@ -13,7 +13,9 @@ class NotifyService < BaseService
     push_to_conversation! if direct_message?
     send_email! if email_enabled?
   rescue ActiveRecord::RecordInvalid
+    # rubocop:disable Style/RedundantReturn
     return
+    # rubocop:enable Style/RedundantReturn
   end
 
   private
diff --git a/app/services/update_account_service.rb b/app/services/update_account_service.rb
index 666db5c71..77f794e17 100644
--- a/app/services/update_account_service.rb
+++ b/app/services/update_account_service.rb
@@ -12,8 +12,8 @@ class UpdateAccountService < BaseService
       check_links(account)
       process_hashtags(account)
     end
-  rescue Mastodon::DimensionsValidationError, Mastodon::StreamValidationError => de
-    account.errors.add(:avatar, de.message)
+  rescue Mastodon::DimensionsValidationError, Mastodon::StreamValidationError => e
+    account.errors.add(:avatar, e.message)
     false
   end