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author | beatrix <beatrix.bitrot@gmail.com> | 2017-09-09 20:11:48 -0400 |
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committer | GitHub <noreply@github.com> | 2017-09-09 20:11:48 -0400 |
commit | 3dff74eecf5387b92b862893248710d2efb90eec (patch) | |
tree | 0d29d8c952a0c62e7de4348a1d63963fd5eca237 /app/services/activitypub/fetch_remote_account_service.rb | |
parent | e18ed4bbc7ab4e258d05a3e2a5db0790f67a8f37 (diff) | |
parent | 14e1fb8d36763e5255e7b8e440ecaf02208db004 (diff) |
Merge pull request #141 from yipdw/sync/upstream
Sync with upstream @ v1.6.0rc3 ohhhhhhhhhhh heck here we go
Diffstat (limited to 'app/services/activitypub/fetch_remote_account_service.rb')
-rw-r--r-- | app/services/activitypub/fetch_remote_account_service.rb | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/app/services/activitypub/fetch_remote_account_service.rb b/app/services/activitypub/fetch_remote_account_service.rb new file mode 100644 index 000000000..3eeca585e --- /dev/null +++ b/app/services/activitypub/fetch_remote_account_service.rb @@ -0,0 +1,57 @@ +# frozen_string_literal: true + +class ActivityPub::FetchRemoteAccountService < BaseService + include JsonLdHelper + + # Should be called when uri has already been checked for locality + # Does a WebFinger roundtrip on each call + def call(uri, prefetched_json = nil) + @json = body_to_json(prefetched_json) || fetch_resource(uri) + + return unless supported_context? && expected_type? + + @uri = @json['id'] + @username = @json['preferredUsername'] + @domain = Addressable::URI.parse(uri).normalized_host + + return unless verified_webfinger? + + ActivityPub::ProcessAccountService.new.call(@username, @domain, @json) + rescue Oj::ParseError + nil + end + + private + + def verified_webfinger? + webfinger = Goldfinger.finger("acct:#{@username}@#{@domain}") + confirmed_username, confirmed_domain = split_acct(webfinger.subject) + + return true if @username.casecmp(confirmed_username).zero? && @domain.casecmp(confirmed_domain).zero? + + webfinger = Goldfinger.finger("acct:#{confirmed_username}@#{confirmed_domain}") + confirmed_username, confirmed_domain = split_acct(webfinger.subject) + self_reference = webfinger.link('self') + + return false if self_reference&.href != @uri + + @username = confirmed_username + @domain = confirmed_domain + + true + rescue Goldfinger::Error + false + end + + def split_acct(acct) + acct.gsub(/\Aacct:/, '').split('@') + end + + def supported_context? + super(@json) + end + + def expected_type? + @json['type'] == 'Person' + end +end |