Class: Asciidoctor::Foodogsquared::Extensions::SWHIncludeProcessor

Inherits:
Extensions::IncludeProcessor
  • Object
show all
Defined in:
lib/asciidoctor/foodogsquared/extensions/swhid-include-processor.rb

Instance Method Summary collapse

Instance Method Details

#handles?(target) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/asciidoctor/foodogsquared/extensions/swhid-include-processor.rb', line 9

def handles?(target)
  target.start_with? 'swh:'
end

#process(doc, reader, target, attributes) ⇒ Object 



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# File 'lib/asciidoctor/foodogsquared/extensions/swhid-include-processor.rb', line 13

def process(doc, reader, target, attributes)
  swhid = target
  swhid_core_identifier = swhid.split(';').at(0)
  swhid_object_type = (swhid_core_identifier.split ':').at 2

  unless (doc.safe <= Asciidoctor::SafeMode::SERVER) && (doc.attr? 'allow-uri-read')
    raise %('swh:' include cannot be used in safe mode level > SERVER and without attribute 'allow-uri-read')
  end

  # We're already going to throw out anything that is not content object type
  # just to make the later pipelines easier to construct.
  if swhid_object_type != 'cnt'
    warn %(SWHID '#{swhid_core_identifier}' is not of 'cnt' type; ignoring)
    return reader
  end

  version = '1'

  content = begin
    uri = URI.parse %(https://archive.softwareheritage.org/api/#{version}/resolve/#{target}/)

    headers = {
      'Accept' => 'application/json'
    }

    headers['Authorization'] = "Bearer #{ENV['SWH_API_BEARER_TOKEN']}" if ENV['SWH_API_BEARER_TOKEN']

    metadata = OpenURI.open_uri(uri, headers) { |f| JSON.parse(f.read) }
    object_hash = metadata['object_id']

    uri = URI.parse %(https://archive.softwareheritage.org/api/#{version}/content/sha1_git:#{object_hash}/raw/)
    OpenURI.open_uri(uri, headers, &:read)
  rescue OpenURI::HTTPError => e
    warning = %(error while getting '#{swhid_core_identifier}': #{e})
    warn warning
    warning
  end

  reader.push_include content, target, target, 1, attributes
  reader
end