Support for import/export of instance-level domain blocks/allows for 4.x w/ additional fixes (#20597)

* Allow import/export of instance-level domain blocks/allows (#1754)

* Allow import/export of instance-level domain blocks/allows.
Fixes #15095

* Pacify circleci

* Address simple code review feedback

* Add headers to exported CSV

* Extract common import/export functionality to
AdminExportControllerConcern

* Add additional fields to instance-blocked domain export

* Address review feedback

* Split instance domain block/allow import/export into separate pages/controllers

* Address code review feedback

* Pacify DeepSource

* Work around Paperclip::HasAttachmentFile for Rails 6

* Fix deprecated API warning in export tests

* Remove after_commit workaround

(cherry picked from commit 94e98864e39c010635e839fea984f2b4893bef1a)

* Add confirmation page when importing blocked domains (#1773)

* Move glitch-soc-specific strings to glitch-soc-specific locale files

* Add confirmation page when importing blocked domains

(cherry picked from commit b91196f4b73fff91997b8077619ae25b6d04a59e)

* Fix authorization check in domain blocks controller

(cherry picked from commit 75279377583c6e2aa04cc8d7380c593979630b38)

* Fix error strings for domain blocks and email-domain blocks

Corrected issue with non-error message used for Mastodon:NotPermittedError in Domain Blocks
Corrected issue Domain Blocks using the Email Domain Blocks message on ActionContoller::ParameterMissing
Corrected issue with Email Domain Blocks using the not_permitted string from "custom emojii's"

* Ran i18n-tasks normalize to address test failure

* Removed unused admin.export_domain_blocks.not_permitted string

Removing unused string as indicated by Check i18n

* Fix tests

(cherry picked from commit 9094c2f52c24e1c00b594e7c11cd00e4a07eb431)

* Fix domain block export not exporting blocks with only media rejection

(cherry picked from commit 26ff48ee48a5c03a2a4b0bd03fd322529e6bd960)

* Fix various issues with domain block import

- stop using Paperclip for processing domain allow/block imports
- stop leaving temporary files
- better error handling
- assume CSV files are UTF-8-encoded

(cherry picked from commit cad824d8f501b95377e4f0a957e5a00d517a1902)

Co-authored-by: Levi Bard <taktaktaktaktaktaktaktaktaktak@gmail.com>
Co-authored-by: Claire <claire.github-309c@sitedethib.com>

1 files changed, 60 insertions, 0 deletions

diff --git a/app/controllers/admin/export_domain_allows_controller.rb b/app/controllers/admin/export_domain_allows_controller.rb
new file mode 100644
index 000000000..57fb12c62
--- /dev/null
+++ b/app/controllers/admin/export_domain_allows_controller.rb
@@ -0,0 +1,60 @@
+# frozen_string_literal: true
+
+require 'csv'
+
+module Admin
+  class ExportDomainAllowsController < BaseController
+    include AdminExportControllerConcern
+
+    before_action :set_dummy_import!, only: [:new]
+
+    def new
+      authorize :domain_allow, :create?
+    end
+
+    def export
+      authorize :instance, :index?
+      send_export_file
+    end
+
+    def import
+      authorize :domain_allow, :create?
+      begin
+        @import = Admin::Import.new(import_params)
+        return render :new unless @import.validate
+
+        parse_import_data!(export_headers)
+
+        @data.take(Admin::Import::ROWS_PROCESSING_LIMIT).each do |row|
+          domain = row['#domain'].strip
+          next if DomainAllow.allowed?(domain)
+
+          domain_allow = DomainAllow.new(domain: domain)
+          log_action :create, domain_allow if domain_allow.save
+        end
+        flash[:notice] = I18n.t('admin.domain_allows.created_msg')
+      rescue ActionController::ParameterMissing
+        flash[:error] = I18n.t('admin.export_domain_allows.no_file')
+      end
+      redirect_to admin_instances_path
+    end
+
+    private
+
+    def export_filename
+      'domain_allows.csv'
+    end
+
+    def export_headers
+      %w(#domain)
+    end
+
+    def export_data
+      CSV.generate(headers: export_headers, write_headers: true) do |content|
+        DomainAllow.allowed_domains.each do |instance|
+          content << [instance.domain]
+        end
+      end
+    end
+  end
+end