Module: CanvasDataClient::Helpers::HMACHelper

Includes:
TimeHelper
Included in:
Client
Defined in:
lib/canvas_data_client/helpers/hmac_helper.rb

Instance Method Summary collapse

Methods included from TimeHelper

#rfc7231

Instance Method Details

#compute_signature(secret, time, opts = {}) ⇒ Object 



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# File 'lib/canvas_data_client/helpers/hmac_helper.rb', line 6

def compute_signature(secret, time, opts = {})
  message = build_message(secret, rfc7231(time), opts)
  digest = OpenSSL::Digest.new('sha256')
  signature = OpenSSL::HMAC.digest(digest, secret, message)
  Base64.encode64(signature).strip
end

#headers(key, secret, opts = {}) ⇒ Object 



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# File 'lib/canvas_data_client/helpers/hmac_helper.rb', line 13

def headers(key, secret, opts = {})
  raise 'A url must be defined as :path in opts' unless opts[:path]
  opts[:method] ||= 'get'
  opts[:content_type] ||= 'application/json'
  time = Time.now
  signature = compute_signature(secret, time, opts)
  {
    'Authorization' => "HMACAuth #{key}:#{signature}",
    'Date' => rfc7231(time),
    'Content-Type' => opts[:content_type]
  }
end