From c397c1a9e3090a0e879c15cafd48d5f1414b6836 Mon Sep 17 00:00:00 2001 From: Claire Date: Fri, 16 Feb 2024 11:56:12 +0100 Subject: [PATCH] Merge pull request from GHSA-jhrq-qvrm-qr36 * Fix insufficient Content-Type checking of fetched ActivityStreams objects * Allow JSON-LD documents with multiple profiles --- app/helpers/jsonld_helper.rb | 14 +++++++++++++- app/services/fetch_resource_service.rb | 2 +- spec/helpers/jsonld_helper_spec.rb | 14 +++++++------- spec/lib/activitypub/activity/announce_spec.rb | 4 ++-- .../fetch_featured_collection_service_spec.rb | 12 ++++++------ .../fetch_remote_account_service_spec.rb | 6 +++--- .../activitypub/fetch_replies_service_spec.rb | 6 +++--- .../synchronize_followers_service_spec.rb | 6 +++--- .../activitypub/fetch_replies_worker_spec.rb | 2 +- 9 files changed, 39 insertions(+), 27 deletions(-) diff --git a/app/helpers/jsonld_helper.rb b/app/helpers/jsonld_helper.rb index 18314d99f0..332e623f31 100644 --- a/app/helpers/jsonld_helper.rb +++ b/app/helpers/jsonld_helper.rb @@ -176,7 +176,19 @@ module JsonLdHelper build_request(uri, on_behalf_of).perform do |response| raise Mastodon::UnexpectedResponseError, response unless response_successful?(response) || response_error_unsalvageable?(response) || !raise_on_temporary_error - body_to_json(response.body_with_limit) if response.code == 200 + body_to_json(response.body_with_limit) if response.code == 200 && valid_activitypub_content_type?(response) + end + end + + def valid_activitypub_content_type?(response) + return true if response.mime_type == 'application/activity+json' + + # When the mime type is `application/ld+json`, we need to check the profile, + # but `http.rb` does not parse it for us. + return false unless response.mime_type == 'application/ld+json' + + response.headers[HTTP::Headers::CONTENT_TYPE]&.split(';')&.map(&:strip)&.any? do |str| + str.start_with?('profile="') && str[9...-1].split.include?('https://www.w3.org/ns/activitystreams') end end diff --git a/app/services/fetch_resource_service.rb b/app/services/fetch_resource_service.rb index b012880c7a..d6fd63eca0 100644 --- a/app/services/fetch_resource_service.rb +++ b/app/services/fetch_resource_service.rb @@ -43,7 +43,7 @@ class FetchResourceService < BaseService @response_code = response.code return nil if response.code != 200 - if ['application/activity+json', 'application/ld+json'].include?(response.mime_type) + if valid_activitypub_content_type?(response) body = response.body_with_limit json = body_to_json(body) diff --git a/spec/helpers/jsonld_helper_spec.rb b/spec/helpers/jsonld_helper_spec.rb index 744a14f260..54355b8482 100644 --- a/spec/helpers/jsonld_helper_spec.rb +++ b/spec/helpers/jsonld_helper_spec.rb @@ -56,15 +56,15 @@ describe JsonLdHelper do describe '#fetch_resource' do context 'when the second argument is false' do it 'returns resource even if the retrieved ID and the given URI does not match' do - stub_request(:get, 'https://bob.test/').to_return body: '{"id": "https://alice.test/"}' - stub_request(:get, 'https://alice.test/').to_return body: '{"id": "https://alice.test/"}' + stub_request(:get, 'https://bob.test/').to_return(body: '{"id": "https://alice.test/"}', headers: { 'Content-Type': 'application/activity+json' }) + stub_request(:get, 'https://alice.test/').to_return(body: '{"id": "https://alice.test/"}', headers: { 'Content-Type': 'application/activity+json' }) expect(fetch_resource('https://bob.test/', false)).to eq({ 'id' => 'https://alice.test/' }) end it 'returns nil if the object identified by the given URI and the object identified by the retrieved ID does not match' do - stub_request(:get, 'https://mallory.test/').to_return body: '{"id": "https://marvin.test/"}' - stub_request(:get, 'https://marvin.test/').to_return body: '{"id": "https://alice.test/"}' + stub_request(:get, 'https://mallory.test/').to_return(body: '{"id": "https://marvin.test/"}', headers: { 'Content-Type': 'application/activity+json' }) + stub_request(:get, 'https://marvin.test/').to_return(body: '{"id": "https://alice.test/"}', headers: { 'Content-Type': 'application/activity+json' }) expect(fetch_resource('https://mallory.test/', false)).to eq nil end @@ -72,7 +72,7 @@ describe JsonLdHelper do context 'when the second argument is true' do it 'returns nil if the retrieved ID and the given URI does not match' do - stub_request(:get, 'https://mallory.test/').to_return body: '{"id": "https://alice.test/"}' + stub_request(:get, 'https://mallory.test/').to_return(body: '{"id": "https://alice.test/"}', headers: { 'Content-Type': 'application/activity+json' }) expect(fetch_resource('https://mallory.test/', true)).to eq nil end end @@ -80,12 +80,12 @@ describe JsonLdHelper do describe '#fetch_resource_without_id_validation' do it 'returns nil if the status code is not 200' do - stub_request(:get, 'https://host.test/').to_return status: 400, body: '{}' + stub_request(:get, 'https://host.test/').to_return(status: 400, body: '{}', headers: { 'Content-Type': 'application/activity+json' }) expect(fetch_resource_without_id_validation('https://host.test/')).to eq nil end it 'returns hash' do - stub_request(:get, 'https://host.test/').to_return status: 200, body: '{}' + stub_request(:get, 'https://host.test/').to_return(status: 200, body: '{}', headers: { 'Content-Type': 'application/activity+json' }) expect(fetch_resource_without_id_validation('https://host.test/')).to eq({}) end end diff --git a/spec/lib/activitypub/activity/announce_spec.rb b/spec/lib/activitypub/activity/announce_spec.rb index 41806b2582..67a9943468 100644 --- a/spec/lib/activitypub/activity/announce_spec.rb +++ b/spec/lib/activitypub/activity/announce_spec.rb @@ -33,7 +33,7 @@ RSpec.describe ActivityPub::Activity::Announce do context 'when sender is followed by a local account' do before do Fabricate(:account).follow!(sender) - stub_request(:get, 'https://example.com/actor/hello-world').to_return(body: Oj.dump(unknown_object_json)) + stub_request(:get, 'https://example.com/actor/hello-world').to_return(body: Oj.dump(unknown_object_json), headers: { 'Content-Type': 'application/activity+json' }) subject.perform end @@ -118,7 +118,7 @@ RSpec.describe ActivityPub::Activity::Announce do subject { described_class.new(json, sender, relayed_through_account: relay_account) } before do - stub_request(:get, 'https://example.com/actor/hello-world').to_return(body: Oj.dump(unknown_object_json)) + stub_request(:get, 'https://example.com/actor/hello-world').to_return(body: Oj.dump(unknown_object_json), headers: { 'Content-Type': 'application/activity+json' }) end context 'and the relay is enabled' do diff --git a/spec/services/activitypub/fetch_featured_collection_service_spec.rb b/spec/services/activitypub/fetch_featured_collection_service_spec.rb index f552b9dc07..e7351088ba 100644 --- a/spec/services/activitypub/fetch_featured_collection_service_spec.rb +++ b/spec/services/activitypub/fetch_featured_collection_service_spec.rb @@ -60,10 +60,10 @@ RSpec.describe ActivityPub::FetchFeaturedCollectionService, type: :service do shared_examples 'sets pinned posts' do before do - stub_request(:get, 'https://example.com/account/pinned/1').to_return(status: 200, body: Oj.dump(status_json_1)) - stub_request(:get, 'https://example.com/account/pinned/2').to_return(status: 200, body: Oj.dump(status_json_2)) + stub_request(:get, 'https://example.com/account/pinned/1').to_return(status: 200, body: Oj.dump(status_json_1), headers: { 'Content-Type': 'application/activity+json' }) + stub_request(:get, 'https://example.com/account/pinned/2').to_return(status: 200, body: Oj.dump(status_json_2), headers: { 'Content-Type': 'application/activity+json' }) stub_request(:get, 'https://example.com/account/pinned/3').to_return(status: 404) - stub_request(:get, 'https://example.com/account/pinned/4').to_return(status: 200, body: Oj.dump(status_json_4)) + stub_request(:get, 'https://example.com/account/pinned/4').to_return(status: 200, body: Oj.dump(status_json_4), headers: { 'Content-Type': 'application/activity+json' }) subject.call(actor) end @@ -76,7 +76,7 @@ RSpec.describe ActivityPub::FetchFeaturedCollectionService, type: :service do describe '#call' do context 'when the endpoint is a Collection' do before do - stub_request(:get, actor.featured_collection_url).to_return(status: 200, body: Oj.dump(payload)) + stub_request(:get, actor.featured_collection_url).to_return(status: 200, body: Oj.dump(payload), headers: { 'Content-Type': 'application/activity+json' }) end it_behaves_like 'sets pinned posts' @@ -93,7 +93,7 @@ RSpec.describe ActivityPub::FetchFeaturedCollectionService, type: :service do end before do - stub_request(:get, actor.featured_collection_url).to_return(status: 200, body: Oj.dump(payload)) + stub_request(:get, actor.featured_collection_url).to_return(status: 200, body: Oj.dump(payload), headers: { 'Content-Type': 'application/activity+json' }) end it_behaves_like 'sets pinned posts' @@ -114,7 +114,7 @@ RSpec.describe ActivityPub::FetchFeaturedCollectionService, type: :service do end before do - stub_request(:get, actor.featured_collection_url).to_return(status: 200, body: Oj.dump(payload)) + stub_request(:get, actor.featured_collection_url).to_return(status: 200, body: Oj.dump(payload), headers: { 'Content-Type': 'application/activity+json' }) end it_behaves_like 'sets pinned posts' diff --git a/spec/services/activitypub/fetch_remote_account_service_spec.rb b/spec/services/activitypub/fetch_remote_account_service_spec.rb index c05e022aa2..1a649c9540 100644 --- a/spec/services/activitypub/fetch_remote_account_service_spec.rb +++ b/spec/services/activitypub/fetch_remote_account_service_spec.rb @@ -42,7 +42,7 @@ RSpec.describe ActivityPub::FetchRemoteAccountService, type: :service do before do actor[:inbox] = nil - stub_request(:get, 'https://example.com/alice').to_return(body: Oj.dump(actor)) + stub_request(:get, 'https://example.com/alice').to_return(body: Oj.dump(actor), headers: { 'Content-Type': 'application/activity+json' }) stub_request(:get, 'https://example.com/.well-known/webfinger?resource=acct:alice@example.com').to_return(body: Oj.dump(webfinger), headers: { 'Content-Type': 'application/jrd+json' }) end @@ -65,7 +65,7 @@ RSpec.describe ActivityPub::FetchRemoteAccountService, type: :service do let!(:webfinger) { { subject: 'acct:alice@example.com', links: [{ rel: 'self', href: 'https://example.com/alice' }] } } before do - stub_request(:get, 'https://example.com/alice').to_return(body: Oj.dump(actor)) + stub_request(:get, 'https://example.com/alice').to_return(body: Oj.dump(actor), headers: { 'Content-Type': 'application/activity+json' }) stub_request(:get, 'https://example.com/.well-known/webfinger?resource=acct:alice@example.com').to_return(body: Oj.dump(webfinger), headers: { 'Content-Type': 'application/jrd+json' }) end @@ -91,7 +91,7 @@ RSpec.describe ActivityPub::FetchRemoteAccountService, type: :service do let!(:webfinger) { { subject: 'acct:alice@iscool.af', links: [{ rel: 'self', href: 'https://example.com/alice' }] } } before do - stub_request(:get, 'https://example.com/alice').to_return(body: Oj.dump(actor)) + stub_request(:get, 'https://example.com/alice').to_return(body: Oj.dump(actor), headers: { 'Content-Type': 'application/activity+json' }) stub_request(:get, 'https://example.com/.well-known/webfinger?resource=acct:alice@example.com').to_return(body: Oj.dump(webfinger), headers: { 'Content-Type': 'application/jrd+json' }) stub_request(:get, 'https://iscool.af/.well-known/webfinger?resource=acct:alice@iscool.af').to_return(body: Oj.dump(webfinger), headers: { 'Content-Type': 'application/jrd+json' }) end diff --git a/spec/services/activitypub/fetch_replies_service_spec.rb b/spec/services/activitypub/fetch_replies_service_spec.rb index fe49b18c19..ec40abd5b2 100644 --- a/spec/services/activitypub/fetch_replies_service_spec.rb +++ b/spec/services/activitypub/fetch_replies_service_spec.rb @@ -41,7 +41,7 @@ RSpec.describe ActivityPub::FetchRepliesService, type: :service do context 'when passing the URL to the collection' do before do - stub_request(:get, collection_uri).to_return(status: 200, body: Oj.dump(payload)) + stub_request(:get, collection_uri).to_return(status: 200, body: Oj.dump(payload), headers: { 'Content-Type': 'application/activity+json' }) end it 'spawns workers for up to 5 replies on the same server' do @@ -70,7 +70,7 @@ RSpec.describe ActivityPub::FetchRepliesService, type: :service do context 'when passing the URL to the collection' do before do - stub_request(:get, collection_uri).to_return(status: 200, body: Oj.dump(payload)) + stub_request(:get, collection_uri).to_return(status: 200, body: Oj.dump(payload), headers: { 'Content-Type': 'application/activity+json' }) end it 'spawns workers for up to 5 replies on the same server' do @@ -103,7 +103,7 @@ RSpec.describe ActivityPub::FetchRepliesService, type: :service do context 'when passing the URL to the collection' do before do - stub_request(:get, collection_uri).to_return(status: 200, body: Oj.dump(payload)) + stub_request(:get, collection_uri).to_return(status: 200, body: Oj.dump(payload), headers: { 'Content-Type': 'application/activity+json' }) end it 'spawns workers for up to 5 replies on the same server' do diff --git a/spec/services/activitypub/synchronize_followers_service_spec.rb b/spec/services/activitypub/synchronize_followers_service_spec.rb index 75dcf204b7..7b4a5f8ffe 100644 --- a/spec/services/activitypub/synchronize_followers_service_spec.rb +++ b/spec/services/activitypub/synchronize_followers_service_spec.rb @@ -58,7 +58,7 @@ RSpec.describe ActivityPub::SynchronizeFollowersService, type: :service do describe '#call' do context 'when the endpoint is a Collection of actor URIs' do before do - stub_request(:get, collection_uri).to_return(status: 200, body: Oj.dump(payload)) + stub_request(:get, collection_uri).to_return(status: 200, body: Oj.dump(payload), headers: { 'Content-Type': 'application/activity+json' }) end it_behaves_like 'synchronizes followers' @@ -75,7 +75,7 @@ RSpec.describe ActivityPub::SynchronizeFollowersService, type: :service do end before do - stub_request(:get, collection_uri).to_return(status: 200, body: Oj.dump(payload)) + stub_request(:get, collection_uri).to_return(status: 200, body: Oj.dump(payload), headers: { 'Content-Type': 'application/activity+json' }) end it_behaves_like 'synchronizes followers' @@ -96,7 +96,7 @@ RSpec.describe ActivityPub::SynchronizeFollowersService, type: :service do end before do - stub_request(:get, collection_uri).to_return(status: 200, body: Oj.dump(payload)) + stub_request(:get, collection_uri).to_return(status: 200, body: Oj.dump(payload), headers: { 'Content-Type': 'application/activity+json' }) end it_behaves_like 'synchronizes followers' diff --git a/spec/workers/activitypub/fetch_replies_worker_spec.rb b/spec/workers/activitypub/fetch_replies_worker_spec.rb index 91ef3c4b92..64cfcd8cbf 100644 --- a/spec/workers/activitypub/fetch_replies_worker_spec.rb +++ b/spec/workers/activitypub/fetch_replies_worker_spec.rb @@ -21,7 +21,7 @@ describe ActivityPub::FetchRepliesWorker do describe 'perform' do it 'performs a request if the collection URI is from the same host' do - stub_request(:get, 'https://example.com/statuses_replies/1').to_return(status: 200, body: json) + stub_request(:get, 'https://example.com/statuses_replies/1').to_return(status: 200, body: json, headers: { 'Content-Type': 'application/activity+json' }) subject.perform(status.id, 'https://example.com/statuses_replies/1') expect(a_request(:get, 'https://example.com/statuses_replies/1')).to have_been_made.once end