Import feature for following/blocking lists (addresses #62, #177, #201, #454)

app/controllers/api/v1/timelines_controller.rb

@@ -11,8 +11,8 @@ class Api::V1::TimelinesController < ApiController
     @statuses = cache_collection(@statuses)
 
     set_maps(@statuses)
-    set_counters_maps(@statuses)
-    set_account_counters_maps(@statuses.flat_map { |s| [s.account, s.reblog? ? s.reblog.account : nil] }.compact.uniq)
+    # set_counters_maps(@statuses)
+    # set_account_counters_maps(@statuses.flat_map { |s| [s.account, s.reblog? ? s.reblog.account : nil] }.compact.uniq)
 
     next_path = api_v1_home_timeline_url(max_id: @statuses.last.id)    unless @statuses.empty?
     prev_path = api_v1_home_timeline_url(since_id: @statuses.first.id) unless @statuses.empty?
@@ -27,8 +27,8 @@ class Api::V1::TimelinesController < ApiController
     @statuses = cache_collection(@statuses)
 
     set_maps(@statuses)
-    set_counters_maps(@statuses)
-    set_account_counters_maps(@statuses.flat_map { |s| [s.account, s.reblog? ? s.reblog.account : nil] }.compact.uniq)
+    # set_counters_maps(@statuses)
+    # set_account_counters_maps(@statuses.flat_map { |s| [s.account, s.reblog? ? s.reblog.account : nil] }.compact.uniq)
 
     next_path = api_v1_public_timeline_url(max_id: @statuses.last.id)    unless @statuses.empty?
     prev_path = api_v1_public_timeline_url(since_id: @statuses.first.id) unless @statuses.empty?
@@ -44,8 +44,8 @@ class Api::V1::TimelinesController < ApiController
     @statuses = cache_collection(@statuses)
 
     set_maps(@statuses)
-    set_counters_maps(@statuses)
-    set_account_counters_maps(@statuses.flat_map { |s| [s.account, s.reblog? ? s.reblog.account : nil] }.compact.uniq)
+    # set_counters_maps(@statuses)
+    # set_account_counters_maps(@statuses.flat_map { |s| [s.account, s.reblog? ? s.reblog.account : nil] }.compact.uniq)
 
     next_path = api_v1_hashtag_timeline_url(params[:id], max_id: @statuses.last.id)    unless @statuses.empty?
     prev_path = api_v1_hashtag_timeline_url(params[:id], since_id: @statuses.first.id) unless @statuses.empty?

app/controllers/settings/imports_controller.rb

@@ -0,0 +1,34 @@
+# frozen_string_literal: true
+
+class Settings::ImportsController < ApplicationController
+  layout 'admin'
+
+  before_action :authenticate_user!
+  before_action :set_account
+
+  def show
+    @import = Import.new
+  end
+
+  def create
+    @import = Import.new(import_params)
+    @import.account = @account
+
+    if @import.save
+      ImportWorker.perform_async(@import.id)
+      redirect_to settings_import_path, notice: I18n.t('imports.success')
+    else
+      render action: :show
+    end
+  end
+
+  private
+
+  def set_account
+    @account = current_user.account
+  end
+
+  def import_params
+    params.require(:import).permit(:data, :type)
+  end
+end

app/models/import.rb

@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+
+class Import < ApplicationRecord
+  self.inheritance_column = false
+
+  enum type: [:following, :blocking]
+
+  belongs_to :account
+
+  FILE_TYPES = ['text/plain', 'text/csv'].freeze
+
+  has_attached_file :data, url: '/system/:hash.:extension', hash_secret: ENV.fetch('PAPERCLIP_SECRET')
+  validates_attachment_content_type :data, content_type: FILE_TYPES
+end

app/views/layouts/admin.html.haml

@@ -12,6 +12,15 @@
     .content-wrapper
       .content
         %h2= yield :page_title
+
+        - if flash[:notice]
+          .flash-message.notice
+            %strong= flash[:notice]
+
+        - if flash[:alert]
+          .flash-message.alert
+            %strong= flash[:alert]
+
         = yield
 
 = render template: "layouts/application", locals: { body_classes: 'admin' }

app/views/settings/imports/show.html.haml

@@ -0,0 +1,11 @@
+- content_for :page_title do
+  = t('settings.import')
+
+%p.hint= t('imports.preface')
+
+= simple_form_for @import, url: settings_import_path do |f|
+  = f.input :type, collection: Import.types.keys, wrapper: :with_label, include_blank: false, label_method: lambda { |type| I18n.t("imports.types.#{type}") }
+  = f.input :data, wrapper: :with_label, hint: t('simple_form.hints.imports.data')
+
+  .actions
+    = f.button :button, t('imports.upload'), type: :submit

app/workers/import_worker.rb

@@ -0,0 +1,54 @@
+# frozen_string_literal: true
+
+require 'csv'
+
+class ImportWorker
+  include Sidekiq::Worker
+
+  sidekiq_options retry: false
+
+  def perform(import_id)
+    import = Import.find(import_id)
+
+    case import.type
+    when 'blocking'
+      process_blocks(import)
+    when 'following'
+      process_follows(import)
+    end
+
+    import.destroy
+  end
+
+  private
+
+  def process_blocks(import)
+    from_account = import.account
+
+    CSV.foreach(import.data.path) do |row|
+      next if row.size != 1
+
+      begin
+        target_account = FollowRemoteAccountService.new.call(row[0])
+        next if target_account.nil?
+        BlockService.new.call(from_account, target_account)
+      rescue Goldfinger::Error, HTTP::Error, OpenSSL::SSL::SSLError
+        next
+      end
+    end
+  end
+
+  def process_follows(import)
+    from_account = import.account
+
+    CSV.foreach(import.data.path) do |row|
+      next if row.size != 1
+
+      begin
+        FollowService.new.call(from_account, row[0])
+      rescue Goldfinger::Error, HTTP::Error, OpenSSL::SSL::SSLError
+        next
+      end
+    end
+  end
+end