Add HTTP signatures to all outgoing ActivityPub GET requests (#11284)

This commit is contained in:
Eugen Rochko 2019-07-11 14:49:55 +02:00 committed by GitHub
parent a6dc6a242f
commit 4e8dcc5dbb
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 45 additions and 42 deletions

View File

@ -77,19 +77,12 @@ module JsonLdHelper
end end
def fetch_resource_without_id_validation(uri, on_behalf_of = nil, raise_on_temporary_error = false) def fetch_resource_without_id_validation(uri, on_behalf_of = nil, raise_on_temporary_error = false)
on_behalf_of ||= Account.representative
build_request(uri, on_behalf_of).perform do |response| 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 raise Mastodon::UnexpectedResponseError, response unless response_successful?(response) || response_error_unsalvageable?(response) || !raise_on_temporary_error
return body_to_json(response.body_with_limit) if response.code == 200 body_to_json(response.body_with_limit) if response.code == 200
end
# If request failed, retry without doing it on behalf of a user
return if on_behalf_of.nil?
build_request(uri).perform do |response|
raise Mastodon::UnexpectedResponseError, response unless response_successful?(response) || response_error_unsalvageable?(response) || !raise_on_temporary_error
response.code == 200 ? body_to_json(response.body_with_limit) : nil
end end
end end

View File

@ -40,8 +40,8 @@ class Request
set_digest! if options.key?(:body) set_digest! if options.key?(:body)
end end
def on_behalf_of(account, key_id_format = :acct, sign_with: nil) def on_behalf_of(account, key_id_format = :uri, sign_with: nil)
raise ArgumentError, 'account must be local' unless account&.local? raise ArgumentError, 'account must not be nil' if account.nil?
@account = account @account = account
@keypair = sign_with.present? ? OpenSSL::PKey::RSA.new(sign_with) : @account.keypair @keypair = sign_with.present? ? OpenSSL::PKey::RSA.new(sign_with) : @account.keypair

View File

@ -23,7 +23,7 @@ class FetchResourceService < BaseService
end end
def perform_request(&block) def perform_request(&block)
Request.new(:get, @url).add_headers('Accept' => ACCEPT_HEADER).perform(&block) Request.new(:get, @url).add_headers('Accept' => ACCEPT_HEADER).on_behalf_of(Account.representative).perform(&block)
end end
def process_response(response, terminal = false) def process_response(response, terminal = false)

View File

@ -38,7 +38,7 @@ describe ApplicationController, type: :controller do
end end
context 'with signature header' do context 'with signature header' do
let!(:author) { Fabricate(:account) } let!(:author) { Fabricate(:account, domain: 'example.com', uri: 'https://example.com/actor') }
context 'without body' do context 'without body' do
before do before do

View File

@ -4,6 +4,7 @@ RSpec.describe FetchRemoteAccountService, type: :service do
let(:url) { 'https://example.com/alice' } let(:url) { 'https://example.com/alice' }
let(:prefetched_body) { nil } let(:prefetched_body) { nil }
let(:protocol) { :ostatus } let(:protocol) { :ostatus }
let!(:representative) { Fabricate(:account) }
subject { FetchRemoteAccountService.new.call(url, prefetched_body, protocol) } subject { FetchRemoteAccountService.new.call(url, prefetched_body, protocol) }

View File

@ -5,69 +5,78 @@ RSpec.describe FetchResourceService, type: :service do
describe '#call' do describe '#call' do
let(:url) { 'http://example.com' } let(:url) { 'http://example.com' }
subject { described_class.new.call(url) } subject { described_class.new.call(url) }
context 'url is blank' do context 'with blank url' do
let(:url) { '' } let(:url) { '' }
it { is_expected.to be_nil } it { is_expected.to be_nil }
end end
context 'request failed' do context 'when request fails' do
before do before do
WebMock.stub_request(:get, url).to_return(status: 500, body: '', headers: {}) stub_request(:get, url).to_return(status: 500, body: '', headers: {})
end end
it { is_expected.to be_nil } it { is_expected.to be_nil }
end end
context 'raise OpenSSL::SSL::SSLError' do context 'when OpenSSL::SSL::SSLError is raised' do
before do before do
allow(Request).to receive_message_chain(:new, :add_headers, :perform).and_raise(OpenSSL::SSL::SSLError) allow(Request).to receive_message_chain(:new, :add_headers, :on_behalf_of, :perform).and_raise(OpenSSL::SSL::SSLError)
end end
it 'return nil' do it { is_expected.to be_nil }
is_expected.to be_nil
end
end end
context 'raise HTTP::ConnectionError' do context 'when HTTP::ConnectionError is raised' do
before do before do
allow(Request).to receive_message_chain(:new, :add_headers, :perform).and_raise(HTTP::ConnectionError) allow(Request).to receive_message_chain(:new, :add_headers, :on_behalf_of, :perform).and_raise(HTTP::ConnectionError)
end end
it 'return nil' do it { is_expected.to be_nil }
is_expected.to be_nil
end
end end
context 'response success' do context 'when request succeeds' do
let(:body) { '' } let(:body) { '' }
let(:headers) { { 'Content-Type' => content_type } }
let(:json) { let(:content_type) { 'application/json' }
{ id: 1,
let(:headers) do
{ 'Content-Type' => content_type }
end
let(:json) do
{
id: 1,
'@context': ActivityPub::TagManager::CONTEXT, '@context': ActivityPub::TagManager::CONTEXT,
type: 'Note', type: 'Note',
}.to_json }.to_json
}
before do
WebMock.stub_request(:get, url).to_return(status: 200, body: body, headers: headers)
end end
context 'content type is application/atom+xml' do before do
stub_request(:get, url).to_return(status: 200, body: body, headers: headers)
end
it 'signs request' do
subject
expect(a_request(:get, url).with(headers: { 'Signature' => /keyId="#{Regexp.escape(ActivityPub::TagManager.instance.uri_for(representative) + '#main-key')}"/ })).to have_been_made
end
context 'when content type is application/atom+xml' do
let(:content_type) { 'application/atom+xml' } let(:content_type) { 'application/atom+xml' }
it { is_expected.to eq nil } it { is_expected.to eq nil }
end end
context 'content_type is activity+json' do context 'when content type is activity+json' do
let(:content_type) { 'application/activity+json; charset=utf-8' } let(:content_type) { 'application/activity+json; charset=utf-8' }
let(:body) { json } let(:body) { json }
it { is_expected.to eq [1, { prefetched_body: body, id: true }, :activitypub] } it { is_expected.to eq [1, { prefetched_body: body, id: true }, :activitypub] }
end end
context 'content_type is ld+json with profile' do context 'when content type is ld+json with profile' do
let(:content_type) { 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"' } let(:content_type) { 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"' }
let(:body) { json } let(:body) { json }
@ -75,17 +84,17 @@ RSpec.describe FetchResourceService, type: :service do
end end
before do before do
WebMock.stub_request(:get, url).to_return(status: 200, body: body, headers: headers) stub_request(:get, url).to_return(status: 200, body: body, headers: headers)
WebMock.stub_request(:get, 'http://example.com/foo').to_return(status: 200, body: json, headers: { 'Content-Type' => 'application/activity+json' }) stub_request(:get, 'http://example.com/foo').to_return(status: 200, body: json, headers: { 'Content-Type' => 'application/activity+json' })
end end
context 'has link header' do context 'when link header is present' do
let(:headers) { { 'Link' => '<http://example.com/foo>; rel="alternate"; type="application/activity+json"', } } let(:headers) { { 'Link' => '<http://example.com/foo>; rel="alternate"; type="application/activity+json"', } }
it { is_expected.to eq [1, { prefetched_body: json, id: true }, :activitypub] } it { is_expected.to eq [1, { prefetched_body: json, id: true }, :activitypub] }
end end
context 'content type is text/html' do context 'when content type is text/html' do
let(:content_type) { 'text/html' } let(:content_type) { 'text/html' }
let(:body) { '<html><head><link rel="alternate" href="http://example.com/foo" type="application/activity+json"/></head></html>' } let(:body) { '<html><head><link rel="alternate" href="http://example.com/foo" type="application/activity+json"/></head></html>' }