From 297db76188b8aa50decccf9f7fa52ebcc637943f Mon Sep 17 00:00:00 2001
From: KMY <tt@kmycode.net>
Date: Wed, 27 Sep 2023 18:03:13 +0900
Subject: [PATCH] #41 Add Japanese language flag to posts from misskey

---
 app/lib/activitypub/parser/status_parser.rb  |  4 +
 spec/lib/activitypub/activity/create_spec.rb | 80 ++++++++++++++++++++
 2 files changed, 84 insertions(+)

diff --git a/app/lib/activitypub/parser/status_parser.rb b/app/lib/activitypub/parser/status_parser.rb
index 4ffec58ae3..e0a234e110 100644
--- a/app/lib/activitypub/parser/status_parser.rb
+++ b/app/lib/activitypub/parser/status_parser.rb
@@ -107,6 +107,10 @@ class ActivityPub::Parser::StatusParser
   end
 
   def language
+    @language ||= original_language || (misskey_software? ? 'ja' : nil)
+  end
+
+  def original_language
     if content_language_map?
       @object['contentMap'].keys.first
     elsif name_language_map?
diff --git a/spec/lib/activitypub/activity/create_spec.rb b/spec/lib/activitypub/activity/create_spec.rb
index 9c4bba3e62..c199fcd038 100644
--- a/spec/lib/activitypub/activity/create_spec.rb
+++ b/spec/lib/activitypub/activity/create_spec.rb
@@ -1088,6 +1088,86 @@ RSpec.describe ActivityPub::Activity::Create do
           expect(poll.votes.first).to be_nil
         end
       end
+
+      context 'with language' do
+        let(:to) { 'https://www.w3.org/ns/activitystreams#Public' }
+        let(:object_json) do
+          {
+            id: [ActivityPub::TagManager.instance.uri_for(sender), '#bar'].join,
+            type: 'Note',
+            content: 'Lorem ipsum',
+            to: to,
+            contentMap: { ja: 'Lorem ipsum' },
+          }
+        end
+
+        it 'create status' do
+          status = sender.statuses.first
+
+          expect(status).to_not be_nil
+          expect(status.language).to eq 'ja'
+        end
+      end
+
+      context 'without language' do
+        let(:to) { 'https://www.w3.org/ns/activitystreams#Public' }
+        let(:object_json) do
+          {
+            id: [ActivityPub::TagManager.instance.uri_for(sender), '#bar'].join,
+            type: 'Note',
+            content: 'Lorem ipsum',
+            to: to,
+          }
+        end
+
+        it 'create status' do
+          status = sender.statuses.first
+
+          expect(status).to_not be_nil
+          expect(status.language).to be_nil
+        end
+      end
+
+      context 'without language when misskey server' do
+        let(:sender_software) { 'misskey' }
+        let(:to) { 'https://www.w3.org/ns/activitystreams#Public' }
+        let(:object_json) do
+          {
+            id: [ActivityPub::TagManager.instance.uri_for(sender), '#bar'].join,
+            type: 'Note',
+            content: 'Lorem ipsum',
+            to: to,
+          }
+        end
+
+        it 'create status' do
+          status = sender.statuses.first
+
+          expect(status).to_not be_nil
+          expect(status.language).to eq 'ja'
+        end
+      end
+
+      context 'with language when misskey server' do
+        let(:sender_software) { 'misskey' }
+        let(:to) { 'https://www.w3.org/ns/activitystreams#Public' }
+        let(:object_json) do
+          {
+            id: [ActivityPub::TagManager.instance.uri_for(sender), '#bar'].join,
+            type: 'Note',
+            content: 'Lorem ipsum',
+            to: to,
+            contentMap: { 'en-US': 'Lorem ipsum' },
+          }
+        end
+
+        it 'create status' do
+          status = sender.statuses.first
+
+          expect(status).to_not be_nil
+          expect(status.language).to eq 'en-US'
+        end
+      end
     end
 
     context 'with an encrypted message' do