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Add handling of Linked Data Signatures in payloads (#4687)

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* Add handling of Linked Data Signatures in payloads

* Add a way to sign JSON, fix canonicalization of signature options

* Fix signatureValue encoding, send out signed JSON when distributing

* Add missing security context
This commit is contained in:
Eugen Rochko 2017-08-26 13:47:38 +02:00 • committed by GitHub
parent 1cebfed23e
commit 00840f4f2e
25 changed files with 369 additions and 30 deletions
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13
app/helpers/jsonld_helper.rb
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@ -17,6 +17,11 @@ module JsonLdHelper
!json.nil? && equals_or_includes?(json['@context'], ActivityPub::TagManager::CONTEXT)
end
def canonicalize(json)
graph = RDF::Graph.new << JSON::LD::API.toRdf(json)
graph.dump(:normalize)
end
def fetch_resource(uri)
response = build_request(uri).perform
return if response.code != 200
@ -29,6 +34,14 @@ module JsonLdHelper
nil
end
def merge_context(context, new_context)
if context.is_a?(Array)
context << new_context
else
[context, new_context]
end
end
private
def build_request(uri)