Add stricter protocol fields validation for accounts (#25937)

app/models/account.rb

@@ -89,12 +89,19 @@ class Account < ApplicationRecord
   # Remote user validations, also applies to internal actors
   validates :username, format: { with: USERNAME_ONLY_RE }, if: -> { (!local? || actor_type == 'Application') && will_save_change_to_username? }
 
+  # Remote user validations
+  validates :uri, presence: true, unless: :local?, on: :create
+
   # Local user validations
   validates :username, format: { with: /\A[a-z0-9_]+\z/i }, length: { maximum: 30 }, if: -> { local? && will_save_change_to_username? && actor_type != 'Application' }
   validates_with UnreservedUsernameValidator, if: -> { local? && will_save_change_to_username? && actor_type != 'Application' }
   validates :display_name, length: { maximum: 30 }, if: -> { local? && will_save_change_to_display_name? }
   validates :note, note_length: { maximum: 500 }, if: -> { local? && will_save_change_to_note? }
   validates :fields, length: { maximum: 4 }, if: -> { local? && will_save_change_to_fields? }
+  validates :uri, absence: true, if: :local?, on: :create
+  validates :inbox_url, absence: true, if: :local?, on: :create
+  validates :shared_inbox_url, absence: true, if: :local?, on: :create
+  validates :followers_url, absence: true, if: :local?, on: :create
 
   scope :remote, -> { where.not(domain: nil) }
   scope :local, -> { where(domain: nil) }

app/services/activitypub/process_account_service.rb

@@ -79,7 +79,7 @@ class ActivityPub::ProcessAccountService < BaseService
 
     set_immediate_protocol_attributes!
 
-    @account.save
+    @account.save!
   end
 
   def update_account

spec/fabricators/account_fabricator.rb

@@ -13,5 +13,6 @@ Fabricator(:account) do
   suspended_at        { |attrs| attrs[:suspended] ? Time.now.utc : nil }
   silenced_at         { |attrs| attrs[:silenced] ? Time.now.utc : nil }
   user                { |attrs| attrs[:domain].nil? ? Fabricate.build(:user, account: nil) : nil }
+  uri                 { |attrs| attrs[:domain].nil? ? '' : "https://#{attrs[:domain]}/users/#{attrs[:username]}" }
   discoverable        true
 end

spec/lib/account_reach_finder_spec.rb

@@ -5,15 +5,15 @@ require 'rails_helper'
 RSpec.describe AccountReachFinder do
   let(:account) { Fabricate(:account) }
 
-  let(:ap_follower_example_com) { Fabricate(:account, protocol: :activitypub, inbox_url: 'https://example.com/inbox-1') }
-  let(:ap_follower_example_org) { Fabricate(:account, protocol: :activitypub, inbox_url: 'https://example.org/inbox-2') }
-  let(:ap_follower_with_shared) { Fabricate(:account, protocol: :activitypub, inbox_url: 'https://foo.bar/users/a/inbox', shared_inbox_url: 'https://foo.bar/inbox') }
+  let(:ap_follower_example_com) { Fabricate(:account, protocol: :activitypub, inbox_url: 'https://example.com/inbox-1', domain: 'example.com') }
+  let(:ap_follower_example_org) { Fabricate(:account, protocol: :activitypub, inbox_url: 'https://example.org/inbox-2', domain: 'example.org') }
+  let(:ap_follower_with_shared) { Fabricate(:account, protocol: :activitypub, inbox_url: 'https://foo.bar/users/a/inbox', domain: 'foo.bar', shared_inbox_url: 'https://foo.bar/inbox') }
 
-  let(:ap_mentioned_with_shared) { Fabricate(:account, protocol: :activitypub, inbox_url: 'https://foo.bar/users/b/inbox', shared_inbox_url: 'https://foo.bar/inbox') }
-  let(:ap_mentioned_example_com) { Fabricate(:account, protocol: :activitypub, inbox_url: 'https://example.com/inbox-3') }
-  let(:ap_mentioned_example_org) { Fabricate(:account, protocol: :activitypub, inbox_url: 'https://example.org/inbox-4') }
+  let(:ap_mentioned_with_shared) { Fabricate(:account, protocol: :activitypub, inbox_url: 'https://foo.bar/users/b/inbox', domain: 'foo.bar', shared_inbox_url: 'https://foo.bar/inbox') }
+  let(:ap_mentioned_example_com) { Fabricate(:account, protocol: :activitypub, inbox_url: 'https://example.com/inbox-3', domain: 'example.com') }
+  let(:ap_mentioned_example_org) { Fabricate(:account, protocol: :activitypub, inbox_url: 'https://example.org/inbox-4', domain: 'example.org') }
 
-  let(:unrelated_account) { Fabricate(:account, protocol: :activitypub, inbox_url: 'https://example.com/unrelated-inbox') }
+  let(:unrelated_account) { Fabricate(:account, protocol: :activitypub, inbox_url: 'https://example.com/unrelated-inbox', domain: 'example.com') }
 
   before do
     ap_follower_example_com.follow!(account)

spec/lib/activitypub/activity/announce_spec.rb

@@ -5,7 +5,7 @@ require 'rails_helper'
 RSpec.describe ActivityPub::Activity::Announce do
   subject { described_class.new(json, sender) }
 
-  let(:sender)    { Fabricate(:account, followers_url: 'http://example.com/followers', uri: 'https://example.com/actor') }
+  let(:sender)    { Fabricate(:account, followers_url: 'http://example.com/followers', uri: 'https://example.com/actor', domain: 'example.com') }
   let(:recipient) { Fabricate(:account) }
   let(:status)    { Fabricate(:status, account: recipient) }
 
@@ -114,7 +114,7 @@ RSpec.describe ActivityPub::Activity::Announce do
     context 'when the sender is relayed' do
       subject { described_class.new(json, sender, relayed_through_actor: relay_account) }
 
-      let!(:relay_account) { Fabricate(:account, inbox_url: 'https://relay.example.com/inbox') }
+      let!(:relay_account) { Fabricate(:account, inbox_url: 'https://relay.example.com/inbox', domain: 'relay.example.com') }
       let!(:relay) { Fabricate(:relay, inbox_url: 'https://relay.example.com/inbox') }
 
       let(:object_json) { 'https://example.com/actor/hello-world' }

spec/lib/activitypub/activity/update_spec.rb

@@ -5,22 +5,38 @@ require 'rails_helper'
 RSpec.describe ActivityPub::Activity::Update do
   subject { described_class.new(json, sender) }
 
-  let!(:sender) { Fabricate(:account) }
-
-  before do
-    sender.update!(uri: ActivityPub::TagManager.instance.uri_for(sender))
-  end
+  let!(:sender) { Fabricate(:account, domain: 'example.com', inbox_url: 'https://example.com/foo/inbox', outbox_url: 'https://example.com/foo/outbox') }
 
   describe '#perform' do
     context 'with an Actor object' do
-      let(:modified_sender) do
-        sender.tap do |modified_sender|
-          modified_sender.display_name = 'Totally modified now'
-        end
-      end
-
       let(:actor_json) do
-        ActiveModelSerializers::SerializableResource.new(modified_sender, serializer: ActivityPub::ActorSerializer, adapter: ActivityPub::Adapter).as_json
+        {
+          '@context': [
+            'https://www.w3.org/ns/activitystreams',
+            'https://w3id.org/security/v1',
+            {
+              manuallyApprovesFollowers: 'as:manuallyApprovesFollowers',
+              toot: 'http://joinmastodon.org/ns#',
+              featured: { '@id': 'toot:featured', '@type': '@id' },
+              featuredTags: { '@id': 'toot:featuredTags', '@type': '@id' },
+            },
+          ],
+          id: sender.uri,
+          type: 'Person',
+          following: 'https://example.com/users/dfsdf/following',
+          followers: 'https://example.com/users/dfsdf/followers',
+          inbox: sender.inbox_url,
+          outbox: sender.outbox_url,
+          featured: 'https://example.com/users/dfsdf/featured',
+          featuredTags: 'https://example.com/users/dfsdf/tags',
+          preferredUsername: sender.username,
+          name: 'Totally modified now',
+          publicKey: {
+            id: "#{sender.uri}#main-key",
+            owner: sender.uri,
+            publicKeyPem: sender.public_key,
+          },
+        }
       end
 
       let(:json) do
@@ -28,7 +44,7 @@ RSpec.describe ActivityPub::Activity::Update do
           '@context': 'https://www.w3.org/ns/activitystreams',
           id: 'foo',
           type: 'Update',
-          actor: ActivityPub::TagManager.instance.uri_for(sender),
+          actor: sender.uri,
           object: actor_json,
         }.with_indifferent_access
       end
@@ -38,6 +54,7 @@ RSpec.describe ActivityPub::Activity::Update do
         stub_request(:get, actor_json[:followers]).to_return(status: 404)
         stub_request(:get, actor_json[:following]).to_return(status: 404)
         stub_request(:get, actor_json[:featured]).to_return(status: 404)
+        stub_request(:get, actor_json[:featuredTags]).to_return(status: 404)
 
         subject.perform
       end
@@ -49,17 +66,17 @@ RSpec.describe ActivityPub::Activity::Update do
 
     context 'with a Question object' do
       let!(:at_time) { Time.now.utc }
-      let!(:status) { Fabricate(:status, account: sender, poll: Poll.new(account: sender, options: %w(Bar Baz), cached_tallies: [0, 0], expires_at: at_time + 5.days)) }
+      let!(:status) { Fabricate(:status, uri: 'https://example.com/statuses/poll', account: sender, poll: Poll.new(account: sender, options: %w(Bar Baz), cached_tallies: [0, 0], expires_at: at_time + 5.days)) }
 
       let(:json) do
         {
           '@context': 'https://www.w3.org/ns/activitystreams',
           id: 'foo',
           type: 'Update',
-          actor: ActivityPub::TagManager.instance.uri_for(sender),
+          actor: sender.uri,
           object: {
             type: 'Question',
-            id: ActivityPub::TagManager.instance.uri_for(status),
+            id: status.uri,
             content: 'Foo',
             endTime: (at_time + 5.days).iso8601,
             oneOf: [

spec/lib/activitypub/linked_data_signature_spec.rb

@@ -7,7 +7,7 @@ RSpec.describe ActivityPub::LinkedDataSignature do
 
   subject { described_class.new(json) }
 
-  let!(:sender) { Fabricate(:account, uri: 'http://example.com/alice') }
+  let!(:sender) { Fabricate(:account, uri: 'http://example.com/alice', domain: 'example.com') }
 
   let(:raw_json) do
     {

spec/lib/activitypub/tag_manager_spec.rb

@@ -139,7 +139,7 @@ RSpec.describe ActivityPub::TagManager do
     end
 
     it 'returns the remote account by matching URI without fragment part' do
-      account = Fabricate(:account, uri: 'https://example.com/123')
+      account = Fabricate(:account, uri: 'https://example.com/123', domain: 'example.com')
       expect(subject.uri_to_resource('https://example.com/123#456', Account)).to eq account
     end
 

spec/models/account_spec.rb

@@ -963,12 +963,12 @@ RSpec.describe Account do
   context 'when is remote' do
     it 'does not generate keys' do
       key = OpenSSL::PKey::RSA.new(1024).public_key
-      account = described_class.create!(domain: 'remote', username: Faker::Internet.user_name(separators: ['_']), public_key: key.to_pem)
+      account = described_class.create!(domain: 'remote', uri: 'https://remote/actor', username: Faker::Internet.user_name(separators: ['_']), public_key: key.to_pem)
       expect(account.keypair.params).to eq key.params
     end
 
     it 'normalizes domain' do
-      account = described_class.create!(domain: 'にゃん', username: Faker::Internet.user_name(separators: ['_']))
+      account = described_class.create!(domain: 'にゃん', uri: 'https://xn--r9j5b5b/actor', username: Faker::Internet.user_name(separators: ['_']))
       expect(account.domain).to eq 'xn--r9j5b5b'
     end
   end

spec/services/delete_account_service_spec.rb

@@ -65,8 +65,8 @@ RSpec.describe DeleteAccountService, type: :service do
       stub_request(:post, 'https://bob.com/inbox').to_return(status: 201)
     end
 
-    let!(:remote_alice) { Fabricate(:account, inbox_url: 'https://alice.com/inbox', protocol: :activitypub) }
-    let!(:remote_bob) { Fabricate(:account, inbox_url: 'https://bob.com/inbox', protocol: :activitypub) }
+    let!(:remote_alice) { Fabricate(:account, inbox_url: 'https://alice.com/inbox', domain: 'alice.com', protocol: :activitypub) }
+    let!(:remote_bob) { Fabricate(:account, inbox_url: 'https://bob.com/inbox', domain: 'bob.com', protocol: :activitypub) }
 
     include_examples 'common behavior' do
       let!(:account) { Fabricate(:account) }
@@ -87,12 +87,34 @@ RSpec.describe DeleteAccountService, type: :service do
     end
 
     include_examples 'common behavior' do
-      let!(:account) { Fabricate(:account, inbox_url: 'https://bob.com/inbox', protocol: :activitypub) }
+      let!(:account) { Fabricate(:account, inbox_url: 'https://bob.com/inbox', protocol: :activitypub, domain: 'bob.com') }
       let!(:local_follower) { Fabricate(:account) }
 
-      it 'sends a reject follow to follower inboxes' do
+      it 'sends expected activities to followed and follower inboxes' do
         subject
-        expect(a_request(:post, account.inbox_url)).to have_been_made.once
+
+        expect(a_request(:post, account.inbox_url).with(
+                 body:
+                   hash_including({
+                     'type' => 'Reject',
+                     'object' => hash_including({
+                       'type' => 'Follow',
+                       'actor' => account.uri,
+                       'object' => ActivityPub::TagManager.instance.uri_for(local_follower),
+                     }),
+                   })
+               )).to have_been_made.once
+
+        expect(a_request(:post, account.inbox_url).with(
+                 body: hash_including({
+                   'type' => 'Undo',
+                   'object' => hash_including({
+                     'type' => 'Follow',
+                     'actor' => ActivityPub::TagManager.instance.uri_for(local_follower),
+                     'object' => account.uri,
+                   }),
+                 })
+               )).to have_been_made.once
       end
     end
   end

spec/services/resolve_url_service_spec.rb

@@ -8,7 +8,7 @@ describe ResolveURLService, type: :service do
   describe '#call' do
     it 'returns nil when there is no resource url' do
       url           = 'http://example.com/missing-resource'
-      known_account = Fabricate(:account, uri: url)
+      known_account = Fabricate(:account, uri: url, domain: 'example.com')
       service = instance_double(FetchResourceService)
 
       allow(FetchResourceService).to receive(:new).and_return service
@@ -20,7 +20,7 @@ describe ResolveURLService, type: :service do
 
     it 'returns known account on temporary error' do
       url           = 'http://example.com/missing-resource'
-      known_account = Fabricate(:account, uri: url)
+      known_account = Fabricate(:account, uri: url, domain: 'example.com')
       service = instance_double(FetchResourceService)
 
       allow(FetchResourceService).to receive(:new).and_return service

spec/services/suspend_account_service_spec.rb

@@ -44,8 +44,8 @@ RSpec.describe SuspendAccountService, type: :service do
 
     include_examples 'common behavior' do
       let!(:account)         { Fabricate(:account) }
-      let!(:remote_follower) { Fabricate(:account, uri: 'https://alice.com', inbox_url: 'https://alice.com/inbox', protocol: :activitypub) }
-      let!(:remote_reporter) { Fabricate(:account, uri: 'https://bob.com', inbox_url: 'https://bob.com/inbox', protocol: :activitypub) }
+      let!(:remote_follower) { Fabricate(:account, uri: 'https://alice.com', inbox_url: 'https://alice.com/inbox', protocol: :activitypub, domain: 'alice.com') }
+      let!(:remote_reporter) { Fabricate(:account, uri: 'https://bob.com', inbox_url: 'https://bob.com/inbox', protocol: :activitypub, domain: 'bob.com') }
       let!(:report)          { Fabricate(:report, account: remote_reporter, target_account: account) }
 
       before do

spec/services/unsuspend_account_service_spec.rb

@@ -38,8 +38,8 @@ RSpec.describe UnsuspendAccountService, type: :service do
 
     include_examples 'with common context' do
       let!(:account)         { Fabricate(:account) }
-      let!(:remote_follower) { Fabricate(:account, uri: 'https://alice.com', inbox_url: 'https://alice.com/inbox', protocol: :activitypub) }
-      let!(:remote_reporter) { Fabricate(:account, uri: 'https://bob.com', inbox_url: 'https://bob.com/inbox', protocol: :activitypub) }
+      let!(:remote_follower) { Fabricate(:account, uri: 'https://alice.com', inbox_url: 'https://alice.com/inbox', protocol: :activitypub, domain: 'alice.com') }
+      let!(:remote_reporter) { Fabricate(:account, uri: 'https://bob.com', inbox_url: 'https://bob.com/inbox', protocol: :activitypub, domain: 'bob.com') }
       let!(:report)          { Fabricate(:report, account: remote_reporter, target_account: account) }
 
       before do

spec/workers/activitypub/distribute_poll_update_worker_spec.rb

@@ -6,7 +6,7 @@ describe ActivityPub::DistributePollUpdateWorker do
   subject { described_class.new }
 
   let(:account)  { Fabricate(:account) }
-  let(:follower) { Fabricate(:account, protocol: :activitypub, inbox_url: 'http://example.com') }
+  let(:follower) { Fabricate(:account, protocol: :activitypub, inbox_url: 'http://example.com', domain: 'example.com') }
   let(:poll)     { Fabricate(:poll, account: account) }
   let!(:status)  { Fabricate(:status, account: account, poll: poll) }
 

spec/workers/activitypub/distribution_worker_spec.rb

@@ -6,7 +6,7 @@ describe ActivityPub::DistributionWorker do
   subject { described_class.new }
 
   let(:status)   { Fabricate(:status) }
-  let(:follower) { Fabricate(:account, protocol: :activitypub, inbox_url: 'http://example.com') }
+  let(:follower) { Fabricate(:account, protocol: :activitypub, inbox_url: 'http://example.com', domain: 'example.com') }
 
   describe '#perform' do
     before do
@@ -36,7 +36,7 @@ describe ActivityPub::DistributionWorker do
     end
 
     context 'with direct status' do
-      let(:mentioned_account) { Fabricate(:account, protocol: :activitypub, inbox_url: 'https://foo.bar/inbox') }
+      let(:mentioned_account) { Fabricate(:account, protocol: :activitypub, inbox_url: 'https://foo.bar/inbox', domain: 'foo.bar') }
 
       before do
         status.update(visibility: :direct)

spec/workers/activitypub/fetch_replies_worker_spec.rb

@@ -5,7 +5,7 @@ require 'rails_helper'
 describe ActivityPub::FetchRepliesWorker do
   subject { described_class.new }
 
-  let(:account) { Fabricate(:account, uri: 'https://example.com/user/1') }
+  let(:account) { Fabricate(:account, domain: 'example.com') }
   let(:status)  { Fabricate(:status, account: account) }
 
   let(:payload) do

spec/workers/activitypub/move_distribution_worker_spec.rb

@@ -6,8 +6,8 @@ describe ActivityPub::MoveDistributionWorker do
   subject { described_class.new }
 
   let(:migration) { Fabricate(:account_migration) }
-  let(:follower) { Fabricate(:account, protocol: :activitypub, inbox_url: 'http://example.com') }
-  let(:blocker) { Fabricate(:account, protocol: :activitypub, inbox_url: 'http://example2.com') }
+  let(:follower) { Fabricate(:account, protocol: :activitypub, inbox_url: 'http://example.com', domain: 'example.com') }
+  let(:blocker) { Fabricate(:account, protocol: :activitypub, inbox_url: 'http://example2.com', domain: 'example2.com') }
 
   describe '#perform' do
     before do

spec/workers/activitypub/status_update_distribution_worker_spec.rb

@@ -6,7 +6,7 @@ describe ActivityPub::StatusUpdateDistributionWorker do
   subject { described_class.new }
 
   let(:status)   { Fabricate(:status, text: 'foo') }
-  let(:follower) { Fabricate(:account, protocol: :activitypub, inbox_url: 'http://example.com') }
+  let(:follower) { Fabricate(:account, protocol: :activitypub, inbox_url: 'http://example.com', domain: 'example.com') }
 
   describe '#perform' do
     before do

spec/workers/activitypub/update_distribution_worker_spec.rb

@@ -6,7 +6,7 @@ describe ActivityPub::UpdateDistributionWorker do
   subject { described_class.new }
 
   let(:account)  { Fabricate(:account) }
-  let(:follower) { Fabricate(:account, protocol: :activitypub, inbox_url: 'http://example.com') }
+  let(:follower) { Fabricate(:account, protocol: :activitypub, inbox_url: 'http://example.com', domain: 'example.com') }
 
   describe '#perform' do
     before do