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Merge pull request from GHSA-jhrq-qvrm-qr36

* Fix insufficient Content-Type checking of fetched ActivityStreams objects

* Allow JSON-LD documents with multiple profiles
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Claire 2024-02-16 11:56:12 +01:00 committed by GitHub
parent 684f99908f
commit 15de520201
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GPG key ID: B5690EEEBB952194
12 changed files with 56 additions and 44 deletions

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@ -174,7 +174,19 @@ module JsonLdHelper
build_request(uri, on_behalf_of, options: request_options).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

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@ -44,7 +44,7 @@ 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)

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@ -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 be_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 be_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 be_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

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@ -35,7 +35,7 @@ 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
@ -120,7 +120,7 @@ RSpec.describe ActivityPub::Activity::Announce do
let(:object_json) { 'https://example.com/actor/hello-world' }
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 'when the relay is enabled' do

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@ -62,10 +62,10 @@ RSpec.describe ActivityPub::FetchFeaturedCollectionService, type: :service do
shared_examples 'sets pinned posts' do
before do
stub_request(:get, 'https://example.com/account/pinned/known').to_return(status: 200, body: Oj.dump(status_json_pinned_known))
stub_request(:get, 'https://example.com/account/pinned/unknown-inlined').to_return(status: 200, body: Oj.dump(status_json_pinned_unknown_inlined))
stub_request(:get, 'https://example.com/account/pinned/known').to_return(status: 200, body: Oj.dump(status_json_pinned_known), headers: { 'Content-Type': 'application/activity+json' })
stub_request(:get, 'https://example.com/account/pinned/unknown-inlined').to_return(status: 200, body: Oj.dump(status_json_pinned_unknown_inlined), headers: { 'Content-Type': 'application/activity+json' })
stub_request(:get, 'https://example.com/account/pinned/unknown-unreachable').to_return(status: 404)
stub_request(:get, 'https://example.com/account/pinned/unknown-reachable').to_return(status: 200, body: Oj.dump(status_json_pinned_unknown_reachable))
stub_request(:get, 'https://example.com/account/pinned/unknown-reachable').to_return(status: 200, body: Oj.dump(status_json_pinned_unknown_reachable), headers: { 'Content-Type': 'application/activity+json' })
subject.call(actor, note: true, hashtag: false)
end
@ -82,7 +82,7 @@ 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'
@ -99,7 +99,7 @@ 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'
@ -108,7 +108,7 @@ RSpec.describe ActivityPub::FetchFeaturedCollectionService, type: :service do
let(:items) { 'https://example.com/account/pinned/unknown-reachable' }
before do
stub_request(:get, 'https://example.com/account/pinned/unknown-reachable').to_return(status: 200, body: Oj.dump(status_json_pinned_unknown_reachable))
stub_request(:get, 'https://example.com/account/pinned/unknown-reachable').to_return(status: 200, body: Oj.dump(status_json_pinned_unknown_reachable), headers: { 'Content-Type': 'application/activity+json' })
subject.call(actor, note: true, hashtag: false)
end
@ -135,7 +135,7 @@ 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'
@ -144,7 +144,7 @@ RSpec.describe ActivityPub::FetchFeaturedCollectionService, type: :service do
let(:items) { 'https://example.com/account/pinned/unknown-reachable' }
before do
stub_request(:get, 'https://example.com/account/pinned/unknown-reachable').to_return(status: 200, body: Oj.dump(status_json_pinned_unknown_reachable))
stub_request(:get, 'https://example.com/account/pinned/unknown-reachable').to_return(status: 200, body: Oj.dump(status_json_pinned_unknown_reachable), headers: { 'Content-Type': 'application/activity+json' })
subject.call(actor, note: true, hashtag: false)
end

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@ -38,7 +38,7 @@ RSpec.describe ActivityPub::FetchFeaturedTagsCollectionService, type: :service d
describe '#call' do
context 'when the endpoint is a Collection' do
before do
stub_request(:get, collection_url).to_return(status: 200, body: Oj.dump(payload))
stub_request(:get, collection_url).to_return(status: 200, body: Oj.dump(payload), headers: { 'Content-Type': 'application/activity+json' })
end
it_behaves_like 'sets featured tags'
@ -46,7 +46,7 @@ RSpec.describe ActivityPub::FetchFeaturedTagsCollectionService, type: :service d
context 'when the account already has featured tags' do
before do
stub_request(:get, collection_url).to_return(status: 200, body: Oj.dump(payload))
stub_request(:get, collection_url).to_return(status: 200, body: Oj.dump(payload), headers: { 'Content-Type': 'application/activity+json' })
actor.featured_tags.create!(name: 'FoO')
actor.featured_tags.create!(name: 'baz')
@ -67,7 +67,7 @@ RSpec.describe ActivityPub::FetchFeaturedTagsCollectionService, type: :service d
end
before do
stub_request(:get, collection_url).to_return(status: 200, body: Oj.dump(payload))
stub_request(:get, collection_url).to_return(status: 200, body: Oj.dump(payload), headers: { 'Content-Type': 'application/activity+json' })
end
it_behaves_like 'sets featured tags'
@ -88,7 +88,7 @@ RSpec.describe ActivityPub::FetchFeaturedTagsCollectionService, type: :service d
end
before do
stub_request(:get, collection_url).to_return(status: 200, body: Oj.dump(payload))
stub_request(:get, collection_url).to_return(status: 200, body: Oj.dump(payload), headers: { 'Content-Type': 'application/activity+json' })
end
it_behaves_like 'sets featured tags'

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@ -44,7 +44,7 @@ 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
@ -67,7 +67,7 @@ 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
@ -93,7 +93,7 @@ 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
@ -125,7 +125,7 @@ RSpec.describe ActivityPub::FetchRemoteAccountService, type: :service do
let!(:webfinger) { { subject: 'acct:alice@example.com', links: [{ rel: 'self', href: 'https://example.com/bob' }] } }
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
@ -148,7 +148,7 @@ RSpec.describe ActivityPub::FetchRemoteAccountService, type: :service do
let!(:webfinger) { { subject: 'acct:alice@iscool.af', links: [{ rel: 'self', href: 'https://example.com/bob' }] } }
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

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@ -44,7 +44,7 @@ RSpec.describe ActivityPub::FetchRemoteActorService, 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
@ -67,7 +67,7 @@ RSpec.describe ActivityPub::FetchRemoteActorService, 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
@ -93,7 +93,7 @@ RSpec.describe ActivityPub::FetchRemoteActorService, 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
@ -125,7 +125,7 @@ RSpec.describe ActivityPub::FetchRemoteActorService, type: :service do
let!(:webfinger) { { subject: 'acct:alice@example.com', links: [{ rel: 'self', href: 'https://example.com/bob' }] } }
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
@ -148,7 +148,7 @@ RSpec.describe ActivityPub::FetchRemoteActorService, type: :service do
let!(:webfinger) { { subject: 'acct:alice@iscool.af', links: [{ rel: 'self', href: 'https://example.com/bob' }] } }
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

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@ -50,7 +50,7 @@ RSpec.describe ActivityPub::FetchRemoteKeyService, type: :service do
end
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
@ -59,7 +59,7 @@ RSpec.describe ActivityPub::FetchRemoteKeyService, type: :service do
context 'when the key is a sub-object from the actor' do
before do
stub_request(:get, public_key_id).to_return(body: Oj.dump(actor))
stub_request(:get, public_key_id).to_return(body: Oj.dump(actor), headers: { 'Content-Type': 'application/activity+json' })
end
it 'returns the expected account' do
@ -71,7 +71,7 @@ RSpec.describe ActivityPub::FetchRemoteKeyService, type: :service do
let(:public_key_id) { 'https://example.com/alice-public-key.json' }
before do
stub_request(:get, public_key_id).to_return(body: Oj.dump(key_json.merge({ '@context': ['https://www.w3.org/ns/activitystreams', 'https://w3id.org/security/v1'] })))
stub_request(:get, public_key_id).to_return(body: Oj.dump(key_json.merge({ '@context': ['https://www.w3.org/ns/activitystreams', 'https://w3id.org/security/v1'] })), headers: { 'Content-Type': 'application/activity+json' })
end
it 'returns the expected account' do
@ -84,7 +84,7 @@ RSpec.describe ActivityPub::FetchRemoteKeyService, type: :service do
let(:actor_public_key) { 'https://example.com/alice-public-key.json' }
before do
stub_request(:get, public_key_id).to_return(body: Oj.dump(key_json.merge({ '@context': ['https://www.w3.org/ns/activitystreams', 'https://w3id.org/security/v1'] })))
stub_request(:get, public_key_id).to_return(body: Oj.dump(key_json.merge({ '@context': ['https://www.w3.org/ns/activitystreams', 'https://w3id.org/security/v1'] })), headers: { 'Content-Type': 'application/activity+json' })
end
it 'returns the nil' do

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@ -55,7 +55,7 @@ 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
@ -84,7 +84,7 @@ 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
@ -117,7 +117,7 @@ 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

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@ -60,7 +60,7 @@ 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'
@ -77,7 +77,7 @@ 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'
@ -98,7 +98,7 @@ 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'

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@ -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