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dd7ef0dc41
* Add ActivityPub inbox * Handle ActivityPub deletes * Handle ActivityPub creates * Handle ActivityPub announces * Stubs for handling all activities that need to be handled * Add ActivityPub actor resolving * Handle conversation URI passing in ActivityPub * Handle content language in ActivityPub * Send accept header when fetching actor, handle JSON parse errors * Test for ActivityPub::FetchRemoteAccountService * Handle public key and icon/image when embedded/as array/as resolvable URI * Implement ActivityPub::FetchRemoteStatusService * Add stubs for more interactions * Undo activities implemented * Handle out of order activities * Hook up ActivityPub to ResolveRemoteAccountService, handle Update Account activities * Add fragment IDs to all transient activity serializers * Add tests and fixes * Add stubs for missing tests * Add more tests * Add more tests
58 lines
1.5 KiB
Ruby
58 lines
1.5 KiB
Ruby
# frozen_string_literal: true
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class ActivityPub::FetchRemoteAccountService < BaseService
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include JsonLdHelper
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# Should be called when uri has already been checked for locality
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# Does a WebFinger roundtrip on each call
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def call(uri)
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@json = fetch_resource(uri)
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return unless supported_context? && expected_type?
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@uri = @json['id']
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@username = @json['preferredUsername']
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@domain = Addressable::URI.parse(uri).normalized_host
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return unless verified_webfinger?
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ActivityPub::ProcessAccountService.new.call(@username, @domain, @json)
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rescue Oj::ParseError
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nil
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end
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private
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def verified_webfinger?
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webfinger = Goldfinger.finger("acct:#{@username}@#{@domain}")
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confirmed_username, confirmed_domain = split_acct(webfinger.subject)
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return true if @username.casecmp(confirmed_username).zero? && @domain.casecmp(confirmed_domain).zero?
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webfinger = Goldfinger.finger("acct:#{confirmed_username}@#{confirmed_domain}")
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confirmed_username, confirmed_domain = split_acct(webfinger.subject)
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self_reference = webfinger.link('self')
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return false if self_reference&.href != @uri
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@username = confirmed_username
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@domain = confirmed_domain
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true
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rescue Goldfinger::Error
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false
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end
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def split_acct(acct)
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acct.gsub(/\Aacct:/, '').split('@')
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end
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def supported_context?
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super(@json)
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end
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def expected_type?
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@json['type'] == 'Person'
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end
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end
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