Change silences to always require approval on follow (#11975)

* Change silenced accounts to require approval on follow

* Also require approval for follows by people explicitly muted by target accounts

* Do not auto-accept silenced or muted accounts when switching from locked to unlocked

* Add `follow_requests_count` to verify_credentials

* Show “Follow requests” menu item if needed even if account is locked

* Add tests

* Correctly reflect that follow requests weren't auto-accepted when local account is silenced

* Accept follow requests from user-muted accounts to avoid leaking mutes

spec/lib/activitypub/activity/follow_spec.rb

@@ -31,6 +31,36 @@ RSpec.describe ActivityPub::Activity::Follow do
       end
     end
 
+    context 'silenced account following an unlocked account' do
+      before do
+        sender.touch(:silenced_at)
+        subject.perform
+      end
+
+      it 'does not create a follow from sender to recipient' do
+        expect(sender.following?(recipient)).to be false
+      end
+
+      it 'creates a follow request' do
+        expect(sender.requested?(recipient)).to be true
+      end
+    end
+
+    context 'unlocked account muting the sender' do
+      before do
+        recipient.mute!(sender)
+        subject.perform
+      end
+
+      it 'creates a follow from sender to recipient' do
+        expect(sender.following?(recipient)).to be true
+      end
+
+      it 'does not create a follow request' do
+        expect(sender.requested?(recipient)).to be false
+      end
+    end
+
     context 'locked account' do
       before do
         recipient.update(locked: true)

spec/services/follow_service_spec.rb

@@ -30,6 +30,33 @@ RSpec.describe FollowService, type: :service do
       end
     end
 
+    describe 'unlocked account, from silenced account' do
+      let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob')).account }
+
+      before do
+        sender.touch(:silenced_at)
+        subject.call(sender, bob.acct)
+      end
+
+      it 'creates a follow request with reblogs' do
+        expect(FollowRequest.find_by(account: sender, target_account: bob, show_reblogs: true)).to_not be_nil
+      end
+    end
+
+    describe 'unlocked account, from a muted account' do
+      let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob')).account }
+
+      before do
+        bob.mute!(sender)
+        subject.call(sender, bob.acct)
+      end
+
+      it 'creates a following relation with reblogs' do
+        expect(sender.following?(bob)).to be true
+        expect(sender.muting_reblogs?(bob)).to be false
+      end
+    end
+
     describe 'unlocked account' do
       let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob')).account }
 

spec/services/update_account_service_spec.rb

@@ -0,0 +1,38 @@
+require 'rails_helper'
+
+RSpec.describe UpdateAccountService, type: :service do
+  subject { UpdateAccountService.new }
+
+  describe 'switching form locked to unlocked accounts' do
+    let(:account) { Fabricate(:account, locked: true) }
+    let(:alice)   { Fabricate(:user, email: 'alice@example.com', account: Fabricate(:account, username: 'alice')).account }
+    let(:bob)     { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob')).account }
+    let(:eve)     { Fabricate(:user, email: 'eve@example.com', account: Fabricate(:account, username: 'eve')).account }
+
+    before do
+      bob.touch(:silenced_at)
+      account.mute!(eve)
+
+      FollowService.new.call(alice, account)
+      FollowService.new.call(bob, account)
+      FollowService.new.call(eve, account)
+
+      subject.call(account, { locked: false })
+    end
+
+    it 'auto-accepts pending follow requests' do
+      expect(alice.following?(account)).to be true
+      expect(alice.requested?(account)).to be false
+    end
+
+    it 'does not auto-accept pending follow requests from silenced users' do
+      expect(bob.following?(account)).to be false
+      expect(bob.requested?(account)).to be true
+    end
+
+    it 'auto-accepts pending follow requests from muted users so as to not leak mute' do
+      expect(eve.following?(account)).to be true
+      expect(eve.requested?(account)).to be false
+    end
+  end
+end