Add import/export feature for bookmarks (#14956)

* Add ability to export bookmarks

* Add support for importing bookmarks

* Add bookmark import tests

* Add bookmarks export test

10 files changed, 147 insertions, 1 deletions

diff --git a/app/controllers/settings/exports/bookmarks_controller.rb b/app/controllers/settings/exports/bookmarks_controller.rb
new file mode 100644
index 000000000..c12e2f147
--- /dev/null
+++ b/app/controllers/settings/exports/bookmarks_controller.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+module Settings
+  module Exports
+    class BookmarksController < BaseController
+      include ExportControllerConcern
+
+      def index
+        send_export_file
+      end
+
+      private
+
+      def export_data
+        @export.to_bookmarks_csv
+      end
+    end
+  end
+end
diff --git a/app/models/export.rb b/app/models/export.rb
index cab01f11a..5216eed5e 100644
--- a/app/models/export.rb
+++ b/app/models/export.rb
@@ -9,6 +9,14 @@ class Export
     @account = account
   end
 
+  def to_bookmarks_csv
+    CSV.generate do |csv|
+      account.bookmarks.includes(:status).reorder(id: :desc).each do |bookmark|
+        csv << [ActivityPub::TagManager.instance.uri_for(bookmark.status)]
+      end
+    end
+  end
+
   def to_blocked_accounts_csv
     to_csv account.blocking.select(:username, :domain)
   end
@@ -55,6 +63,10 @@ class Export
     account.statuses_count
   end
 
+  def total_bookmarks
+    account.bookmarks.count
+  end
+
   def total_follows
     account.following_count
   end
diff --git a/app/models/import.rb b/app/models/import.rb
index c78a04d07..702453289 100644
--- a/app/models/import.rb
+++ b/app/models/import.rb
@@ -24,7 +24,7 @@ class Import < ApplicationRecord
 
   belongs_to :account
 
-  enum type: [:following, :blocking, :muting, :domain_blocking]
+  enum type: [:following, :blocking, :muting, :domain_blocking, :bookmarks]
 
   validates :type, presence: true
 
diff --git a/app/services/import_service.rb b/app/services/import_service.rb
index 7e55452de..288e47f1e 100644
--- a/app/services/import_service.rb
+++ b/app/services/import_service.rb
@@ -18,6 +18,8 @@ class ImportService < BaseService
       import_mutes!
     when 'domain_blocking'
       import_domain_blocks!
+    when 'bookmarks'
+      import_bookmarks!
     end
   end
 
@@ -88,6 +90,39 @@ class ImportService < BaseService
     end
   end
 
+  def import_bookmarks!
+    parse_import_data!(['#uri'])
+    items = @data.take(ROWS_PROCESSING_LIMIT).map { |row| row['#uri'].strip }
+
+    if @import.overwrite?
+      presence_hash = items.each_with_object({}) { |id, mapping| mapping[id] = true }
+
+      @account.bookmarks.find_each do |bookmark|
+        if presence_hash[bookmark.status.uri]
+          items.delete(bookmark.status.uri)
+        else
+          bookmark.destroy!
+        end
+      end
+    end
+
+    statuses = items.map do |uri|
+      status = ActivityPub::TagManager.instance.uri_to_resource(uri, Status)
+      next if status.nil? && ActivityPub::TagManager.instance.local_uri?(uri)
+
+      status || ActivityPub::FetchRemoteStatusService.new.call(uri)
+    end.compact
+
+    account_ids         = statuses.map(&:account_id)
+    preloaded_relations = relations_map_for_account(@account, account_ids)
+
+    statuses.keep_if { |status| StatusPolicy.new(@account, status, preloaded_relations).show? }
+
+    statuses.each do |status|
+      @account.bookmarks.find_or_create_by!(account: @account, status: status)
+    end
+  end
+
   def parse_import_data!(default_headers)
     data = CSV.parse(import_data, headers: true)
     data = CSV.parse(import_data, headers: default_headers) unless data.headers&.first&.strip&.include?(' ')
@@ -101,4 +136,14 @@ class ImportService < BaseService
   def follow_limit
     FollowLimitValidator.limit_for_account(@account)
   end
+
+  def relations_map_for_account(account, account_ids)
+    {
+      blocking: {},
+      blocked_by: Account.blocked_by_map(account_ids, account.id),
+      muting: {},
+      following: Account.following_map(account_ids, account.id),
+      domain_blocking_by_domain: {},
+    }
+  end
 end
diff --git a/app/views/settings/exports/show.html.haml b/app/views/settings/exports/show.html.haml
index 0bb80e937..18b52c0c2 100644
--- a/app/views/settings/exports/show.html.haml
+++ b/app/views/settings/exports/show.html.haml
@@ -36,6 +36,10 @@
         %th= t('exports.domain_blocks')
         %td= number_with_delimiter @export.total_domain_blocks
         %td= table_link_to 'download', t('exports.csv'), settings_exports_domain_blocks_path(format: :csv)
+      %tr
+        %th= t('exports.bookmarks')
+        %td= number_with_delimiter @export.total_bookmarks
+        %td= table_link_to 'download', t('bookmarks.csv'), settings_exports_bookmarks_path(format: :csv)
 
 %hr.spacer/
 
diff --git a/config/locales/en.yml b/config/locales/en.yml
index bec099082..263ffcdc7 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -842,6 +842,7 @@ en:
       request: Request your archive
       size: Size
     blocks: You block
+    bookmarks: Bookmarks
     csv: CSV
     domain_blocks: Domain blocks
     lists: Lists
@@ -918,6 +919,7 @@ en:
     success: Your data was successfully uploaded and will now be processed in due time
     types:
       blocking: Blocking list
+      bookmarks: Bookmarks
       domain_blocking: Domain blocking list
       following: Following list
       muting: Muting list
diff --git a/config/routes.rb b/config/routes.rb
index 54c76799c..a534b433e 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -125,6 +125,7 @@ Rails.application.routes.draw do
       resources :mutes, only: :index, controller: :muted_accounts
       resources :lists, only: :index, controller: :lists
       resources :domain_blocks, only: :index, controller: :blocked_domains
+      resources :bookmarks, only: :index, controller: :bookmarks
     end
 
     resources :two_factor_authentication_methods, only: [:index] do
diff --git a/spec/controllers/settings/exports/bookmarks_controller_specs.rb b/spec/controllers/settings/exports/bookmarks_controller_specs.rb
new file mode 100644
index 000000000..85761577b
--- /dev/null
+++ b/spec/controllers/settings/exports/bookmarks_controller_specs.rb
@@ -0,0 +1,17 @@
+require 'rails_helper'
+
+describe Settings::Exports::BookmarksController do
+  render_views
+
+  describe 'GET #index' do
+    it 'returns a csv of the bookmarked toots' do
+      user = Fabricate(:user)
+      user.account.bookmarks.create!(status: Fabricate(:status, uri: 'https://foo.bar/statuses/1312'))
+
+      sign_in user, scope: :user
+      get :index, format: :csv
+
+      expect(response.body).to eq "https://foo.bar/statuses/1312\n"
+    end
+  end
+end
diff --git a/spec/fixtures/files/bookmark-imports.txt b/spec/fixtures/files/bookmark-imports.txt
new file mode 100644
index 000000000..7cc8901a0
--- /dev/null
+++ b/spec/fixtures/files/bookmark-imports.txt
@@ -0,0 +1,4 @@
+https://example.com/statuses/1312
+https://local.com/users/foo/statuses/42
+https://unknown-remote.com/users/bar/statuses/1
+https://example.com/statuses/direct
diff --git a/spec/services/import_service_spec.rb b/spec/services/import_service_spec.rb
index b1909d4fd..764225aa7 100644
--- a/spec/services/import_service_spec.rb
+++ b/spec/services/import_service_spec.rb
@@ -1,6 +1,8 @@
 require 'rails_helper'
 
 RSpec.describe ImportService, type: :service do
+  include RoutingHelper
+
   let!(:account) { Fabricate(:account, locked: false) }
   let!(:bob)     { Fabricate(:account, username: 'bob', locked: false) }
   let!(:eve)     { Fabricate(:account, username: 'eve', domain: 'example.com', locked: false, protocol: :activitypub, inbox_url: 'https://example.com/inbox') }
@@ -169,4 +171,44 @@ RSpec.describe ImportService, type: :service do
       end
     end
   end
+
+  context 'import bookmarks' do
+    subject { ImportService.new }
+
+    let(:csv) { attachment_fixture('bookmark-imports.txt') }
+
+    around(:each) do |example|
+      local_before = Rails.configuration.x.local_domain
+      web_before = Rails.configuration.x.web_domain
+      Rails.configuration.x.local_domain = 'local.com'
+      Rails.configuration.x.web_domain = 'local.com'
+      example.run
+      Rails.configuration.x.web_domain = web_before
+      Rails.configuration.x.local_domain = local_before
+    end
+
+    let(:local_account)  { Fabricate(:account, username: 'foo', domain: '') }
+    let!(:remote_status) { Fabricate(:status, uri: 'https://example.com/statuses/1312') }
+    let!(:direct_status) { Fabricate(:status, uri: 'https://example.com/statuses/direct', visibility: :direct) }
+
+    before do
+      service = double
+      allow(ActivityPub::FetchRemoteStatusService).to receive(:new).and_return(service)
+      allow(service).to receive(:call).with('https://unknown-remote.com/users/bar/statuses/1') do
+        Fabricate(:status, uri: 'https://unknown-remote.com/users/bar/statuses/1')
+      end
+    end
+
+    describe 'when no bookmarks are set' do
+      let(:import) { Import.create(account: account, type: 'bookmarks', data: csv) }
+      it 'adds the toots the user has access to to bookmarks' do
+        local_status = Fabricate(:status, account: local_account, uri: 'https://local.com/users/foo/statuses/42', id: 42, local: true)
+        subject.call(import)
+        expect(account.bookmarks.map(&:status).map(&:id)).to include(local_status.id)
+        expect(account.bookmarks.map(&:status).map(&:id)).to include(remote_status.id)
+        expect(account.bookmarks.map(&:status).map(&:id)).not_to include(direct_status.id)
+        expect(account.bookmarks.count).to eq 3
+      end
+    end
+  end
 end