From ed36f7beaaa3526ef50f40caec9529d75926b0bd Mon Sep 17 00:00:00 2001 From: Claire Date: Thu, 1 Feb 2024 15:56:46 +0100 Subject: [PATCH] Merge pull request from GHSA-3fjr-858r-92rw --- .../concerns/signature_verification.rb | 2 +- app/helpers/jsonld_helper.rb | 4 ++-- app/lib/activitypub/activity.rb | 3 ++- app/lib/activitypub/linked_data_signature.rb | 2 +- .../activitypub/fetch_remote_account_service.rb | 6 +++--- .../activitypub/fetch_remote_key_service.rb | 17 ++--------------- .../activitypub/fetch_remote_status_service.rb | 8 ++++---- .../activitypub/process_account_service.rb | 2 +- app/services/fetch_resource_service.rb | 10 +++++++++- .../fetch_remote_account_service_spec.rb | 2 +- spec/services/fetch_resource_service_spec.rb | 10 +++++----- 11 files changed, 31 insertions(+), 35 deletions(-) diff --git a/app/controllers/concerns/signature_verification.rb b/app/controllers/concerns/signature_verification.rb index 4dd0cac55d..65f45e004b 100644 --- a/app/controllers/concerns/signature_verification.rb +++ b/app/controllers/concerns/signature_verification.rb @@ -219,7 +219,7 @@ module SignatureVerification stoplight_wrap_request { ResolveAccountService.new.call(key_id.gsub(/\Aacct:/, '')) } elsif !ActivityPub::TagManager.instance.local_uri?(key_id) account = ActivityPub::TagManager.instance.uri_to_resource(key_id, Account) - account ||= stoplight_wrap_request { ActivityPub::FetchRemoteKeyService.new.call(key_id, id: false) } + account ||= stoplight_wrap_request { ActivityPub::FetchRemoteKeyService.new.call(key_id) } account end rescue Mastodon::HostValidationError diff --git a/app/helpers/jsonld_helper.rb b/app/helpers/jsonld_helper.rb index d9924be3bd..e76a3d5349 100644 --- a/app/helpers/jsonld_helper.rb +++ b/app/helpers/jsonld_helper.rb @@ -143,8 +143,8 @@ module JsonLdHelper end end - def fetch_resource(uri, id, on_behalf_of = nil) - unless id + def fetch_resource(uri, id_is_known, on_behalf_of = nil) + unless id_is_known json = fetch_resource_without_id_validation(uri, on_behalf_of) return if !json.is_a?(Hash) || unsupported_uri_scheme?(json['id']) diff --git a/app/lib/activitypub/activity.rb b/app/lib/activitypub/activity.rb index d2ec122a4d..cc4e8ec2b7 100644 --- a/app/lib/activitypub/activity.rb +++ b/app/lib/activitypub/activity.rb @@ -204,7 +204,8 @@ class ActivityPub::Activity def fetch_remote_original_status if object_uri.start_with?('http') return if ActivityPub::TagManager.instance.local_uri?(object_uri) - ActivityPub::FetchRemoteStatusService.new.call(object_uri, id: true, on_behalf_of: @account.followers.local.first) + + ActivityPub::FetchRemoteStatusService.new.call(object_uri, on_behalf_of: @account.followers.local.first) elsif @object['url'].present? ::FetchRemoteStatusService.new.call(@object['url']) end diff --git a/app/lib/activitypub/linked_data_signature.rb b/app/lib/activitypub/linked_data_signature.rb index e853a970e8..846a3deed0 100644 --- a/app/lib/activitypub/linked_data_signature.rb +++ b/app/lib/activitypub/linked_data_signature.rb @@ -19,7 +19,7 @@ class ActivityPub::LinkedDataSignature return unless type == 'RsaSignature2017' creator = ActivityPub::TagManager.instance.uri_to_resource(creator_uri, Account) - creator ||= ActivityPub::FetchRemoteKeyService.new.call(creator_uri, id: false) + creator ||= ActivityPub::FetchRemoteKeyService.new.call(creator_uri) return if creator.nil? diff --git a/app/services/activitypub/fetch_remote_account_service.rb b/app/services/activitypub/fetch_remote_account_service.rb index 9d01f53868..72da750f49 100644 --- a/app/services/activitypub/fetch_remote_account_service.rb +++ b/app/services/activitypub/fetch_remote_account_service.rb @@ -8,15 +8,15 @@ class ActivityPub::FetchRemoteAccountService < BaseService SUPPORTED_TYPES = %w(Application Group Organization Person Service).freeze # Does a WebFinger roundtrip on each call, unless `only_key` is true - def call(uri, id: true, prefetched_body: nil, break_on_redirect: false, only_key: false) + def call(uri, prefetched_body: nil, break_on_redirect: false, only_key: false) return if domain_not_allowed?(uri) return ActivityPub::TagManager.instance.uri_to_resource(uri, Account) if ActivityPub::TagManager.instance.local_uri?(uri) @json = begin if prefetched_body.nil? - fetch_resource(uri, id) + fetch_resource(uri, true) else - body_to_json(prefetched_body, compare_id: id ? uri : nil) + body_to_json(prefetched_body, compare_id: uri) end end diff --git a/app/services/activitypub/fetch_remote_key_service.rb b/app/services/activitypub/fetch_remote_key_service.rb index c48288b3ba..7142cae1e3 100644 --- a/app/services/activitypub/fetch_remote_key_service.rb +++ b/app/services/activitypub/fetch_remote_key_service.rb @@ -4,23 +4,10 @@ class ActivityPub::FetchRemoteKeyService < BaseService include JsonLdHelper # Returns account that owns the key - def call(uri, id: true, prefetched_body: nil) + def call(uri) return if uri.blank? - if prefetched_body.nil? - if id - @json = fetch_resource_without_id_validation(uri) - if person? - @json = fetch_resource(@json['id'], true) - elsif uri != @json['id'] - return - end - else - @json = fetch_resource(uri, id) - end - else - @json = body_to_json(prefetched_body, compare_id: id ? uri : nil) - end + @json = fetch_resource(uri, false) return unless supported_context?(@json) && expected_type? return find_account(@json['id'], @json) if person? diff --git a/app/services/activitypub/fetch_remote_status_service.rb b/app/services/activitypub/fetch_remote_status_service.rb index cf4f62899f..666e3afffa 100644 --- a/app/services/activitypub/fetch_remote_status_service.rb +++ b/app/services/activitypub/fetch_remote_status_service.rb @@ -4,19 +4,19 @@ class ActivityPub::FetchRemoteStatusService < BaseService include JsonLdHelper # Should be called when uri has already been checked for locality - def call(uri, id: true, prefetched_body: nil, on_behalf_of: nil) + def call(uri, prefetched_body: nil, on_behalf_of: nil) @json = begin if prefetched_body.nil? - fetch_resource(uri, id, on_behalf_of) + fetch_resource(uri, true, on_behalf_of) else - body_to_json(prefetched_body, compare_id: id ? uri : nil) + body_to_json(prefetched_body, compare_id: uri) end end return if !(supported_context? && expected_type?) || actor_id.nil? || !trustworthy_attribution?(@json['id'], actor_id) actor = ActivityPub::TagManager.instance.uri_to_resource(actor_id, Account) - actor = ActivityPub::FetchRemoteAccountService.new.call(actor_id, id: true) if actor.nil? || needs_update?(actor) + actor = ActivityPub::FetchRemoteAccountService.new.call(actor_id) if actor.nil? || needs_update?(actor) return if actor.nil? || actor.suspended? diff --git a/app/services/activitypub/process_account_service.rb b/app/services/activitypub/process_account_service.rb index 4ab6912e5d..417b4a72ac 100644 --- a/app/services/activitypub/process_account_service.rb +++ b/app/services/activitypub/process_account_service.rb @@ -252,7 +252,7 @@ class ActivityPub::ProcessAccountService < BaseService def moved_account account = ActivityPub::TagManager.instance.uri_to_resource(@json['movedTo'], Account) - account ||= ActivityPub::FetchRemoteAccountService.new.call(@json['movedTo'], id: true, break_on_redirect: true) + account ||= ActivityPub::FetchRemoteAccountService.new.call(@json['movedTo'], break_on_redirect: true) account end diff --git a/app/services/fetch_resource_service.rb b/app/services/fetch_resource_service.rb index 6c0093cd45..b012880c7a 100644 --- a/app/services/fetch_resource_service.rb +++ b/app/services/fetch_resource_service.rb @@ -47,7 +47,15 @@ class FetchResourceService < BaseService body = response.body_with_limit json = body_to_json(body) - [json['id'], { prefetched_body: body, id: true }] if supported_context?(json) && (equals_or_includes_any?(json['type'], ActivityPub::FetchRemoteAccountService::SUPPORTED_TYPES) || expected_type?(json)) + return unless supported_context?(json) && (equals_or_includes_any?(json['type'], ActivityPub::FetchRemoteAccountService::SUPPORTED_TYPES) || expected_type?(json)) + + if json['id'] != @url + return if terminal + + return process(json['id'], terminal: true) + end + + [@url, { prefetched_body: body }] elsif !terminal link_header = response['Link'] && parse_link_header(response) diff --git a/spec/services/activitypub/fetch_remote_account_service_spec.rb b/spec/services/activitypub/fetch_remote_account_service_spec.rb index aa13f0a9b7..c05e022aa2 100644 --- a/spec/services/activitypub/fetch_remote_account_service_spec.rb +++ b/spec/services/activitypub/fetch_remote_account_service_spec.rb @@ -16,7 +16,7 @@ RSpec.describe ActivityPub::FetchRemoteAccountService, type: :service do end describe '#call' do - let(:account) { subject.call('https://example.com/alice', id: true) } + let(:account) { subject.call('https://example.com/alice') } shared_examples 'sets profile data' do it 'returns an account' do diff --git a/spec/services/fetch_resource_service_spec.rb b/spec/services/fetch_resource_service_spec.rb index ded05ffbc7..1697ad7689 100644 --- a/spec/services/fetch_resource_service_spec.rb +++ b/spec/services/fetch_resource_service_spec.rb @@ -54,7 +54,7 @@ RSpec.describe FetchResourceService, type: :service do let(:json) do { - id: 1, + id: 'http://example.com/foo', '@context': ActivityPub::TagManager::CONTEXT, type: 'Note', }.to_json @@ -79,14 +79,14 @@ RSpec.describe FetchResourceService, type: :service do let(:content_type) { 'application/activity+json; charset=utf-8' } let(:body) { json } - it { is_expected.to eq [1, { prefetched_body: body, id: true }] } + it { is_expected.to eq ['http://example.com/foo', { prefetched_body: body }] } end context 'when content type is ld+json with profile' do let(:content_type) { 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"' } let(:body) { json } - it { is_expected.to eq [1, { prefetched_body: body, id: true }] } + it { is_expected.to eq ['http://example.com/foo', { prefetched_body: body }] } end before do @@ -97,14 +97,14 @@ RSpec.describe FetchResourceService, type: :service do context 'when link header is present' do let(:headers) { { 'Link' => '; rel="alternate"; type="application/activity+json"', } } - it { is_expected.to eq [1, { prefetched_body: json, id: true }] } + it { is_expected.to eq ['http://example.com/foo', { prefetched_body: json }] } end context 'when content type is text/html' do let(:content_type) { 'text/html' } let(:body) { '' } - it { is_expected.to eq [1, { prefetched_body: json, id: true }] } + it { is_expected.to eq ['http://example.com/foo', { prefetched_body: json }] } end end end