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path: root/users/lib/warden/strategies/secure_remote_password.rb
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module Warden
  module Strategies
    class SecureRemotePassword < Warden::Strategies::Base

      def valid?
        handshake? || authentication?
      end

      def authenticate!
        if authentication?
          validate!
        else  # handshake
          initialize!
        end
      end

      protected

      def handshake?
        params['A'] && params['login']
      end

      def authentication?
        params['client_auth'] && session[:handshake]
      end

      def validate!
        user = session[:handshake].authenticate(params['client_auth'].hex)
        user ? success!(user) : fail!(:password => "Could not log in")
      end

      def initialize!
        user = User.find_by_param(id)
        session[:handshake] = user.initialize_auth(params['A'].hex)
        custom! json_response(session[:handshake])
      rescue RECORD_NOT_FOUND
        fail! :login => "User not found!"
      end

      def json_response(object)
        [ 200,
          {"Content-Type" => "application/json; charset=utf-8"},
          [object.to_json]
        ]
      end

      def id
        params["id"] || params["login"]
      end
    end
  end
  Warden::Strategies.add :secure_remote_password,
    Warden::Strategies::SecureRemotePassword

end