Method: WEBrick::HTTPAuth::DigestAuth#challenge

Defined in:
lib/webrick/httpauth/digestauth.rb

#challenge(req, res, stale = false) ⇒ Object

Returns a challenge response which asks for for authentication information

Raises:

  • (@auth_exception) 


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# File 'lib/webrick/httpauth/digestauth.rb', line 134

def challenge(req, res, stale=false)
  nonce = generate_next_nonce(req)
  if @use_opaque
    opaque = generate_opaque(req)
    @opaques[opaque].nonce = nonce
  end

  param = Hash.new
  param["realm"]  = HTTPUtils::quote(@realm)
  param["domain"] = HTTPUtils::quote(@domain.to_a.join(" ")) if @domain
  param["nonce"]  = HTTPUtils::quote(nonce)
  param["opaque"] = HTTPUtils::quote(opaque) if opaque
  param["stale"]  = stale.to_s
  param["algorithm"] = @algorithm
  param["qop"]    = HTTPUtils::quote(@qop.to_a.join(",")) if @qop

  res[@response_field] =
    "#{@auth_scheme} " + param.map{|k,v| "#{k}=#{v}" }.join(", ")
  info("%s: %s", @response_field, res[@response_field]) if $DEBUG
  raise @auth_exception
end