Class: HTTPSignature::Faraday

Inherits:
Faraday::Middleware
  • Object
show all
Defined in:
lib/http_signature/faraday.rb

Class Attribute Summary collapse

Instance Method Summary collapse

Class Attribute Details

.key ⇒ Object

Returns the value of attribute key.



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# File 'lib/http_signature/faraday.rb', line 8

def key
  @key
end

.key_id ⇒ Object

Returns the value of attribute key_id.



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# File 'lib/http_signature/faraday.rb', line 8

def key_id
  @key_id
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/http_signature/faraday.rb', line 11

def call(env)
  raise 'key and key_id needs to be set' if self.class.key.nil? || self.class.key_id.nil?

  body =
    if env[:body] && env[:body].respond_to?(:read)
      string = env[:body].read
      env[:body].rewind
      string
    else
      env[:body].to_s
    end

  # Choose which headers to sign
  filtered_headers = %w[Host Date Digest]
  headers_to_sign = env[:request_headers].select { |k, _v| filtered_headers.include?(k.to_s) }

  signature = HTTPSignature.create(
    url: env[:url],
    method: env[:method],
    headers: headers_to_sign,
    key: self.class.key,
    key_id: self.class.key_id,
    algorithm: 'hmac-sha256',
    body: body
  )

  env[:request_headers]['Signature'] = signature

  @app.call(env)
end