Module: Emailage::Signature

Defined in:
lib/emailage/signature.rb

Class Method Summary collapse

Class Method Details

.concatenate_request_elements(method, url, query) ⇒ Object

9.1.3. Concatenate Request Elements



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# File 'lib/emailage/signature.rb', line 16

def concatenate_request_elements(method, url, query)
  [method.to_s.upcase, url, query].map {|e| CGI.escape(e)}.join '&'
end

.create(method, url, params, hmac_key) ⇒ String

oauth.net/core/1.0/#signing_process Using HTTP GET parameters option.

Parameters:

  • method (String) —

    HTTP 1.1 Method

  • url (String) —

    Normalized URL to be requested until ? sign.

  • params (Hash) —

    GET or www-urlencoded POST request params.

  • hmac_key (String) —

    Key generated out of Consumer secret and token.

Returns:

  • (String) —

    Value of the oauth_signature query parameter.



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# File 'lib/emailage/signature.rb', line 35

def create(method, url, params, hmac_key)
  query = normalize_query_parameters(params)
  base_string = concatenate_request_elements(method, url, query)
  digest = hmac_sha1(base_string, hmac_key)
  # 9.2.1.  Generating Signature
  Base64.strict_encode64 digest
end

.hmac_sha1(base_string, hmac_key) ⇒ Object

9.2. HMAC-SHA1



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# File 'lib/emailage/signature.rb', line 21

def hmac_sha1(base_string, hmac_key)
  OpenSSL::HMAC.digest(OpenSSL::Digest.new('sha1'), hmac_key, base_string)
end

.normalize_query_parameters(params) ⇒ Object

9.1.1. Normalize Request Parameters



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# File 'lib/emailage/signature.rb', line 11

def normalize_query_parameters(params)
  params.sort.map {|k,v| [CGI.escape(k.to_s), ERB::Util.url_encode(v.to_s)].join '='}.join '&'
end