mv lib to app/lib due to upgrade

app/lib/token_verifier.rb

@@ -0,0 +1,37 @@
+# Generic token verifier with foodcoop scope
+# @todo use +Rails.application.message_verifier+ when possible
+class TokenVerifier < ActiveSupport::MessageVerifier
+  def initialize(prefix)
+    super(self.class.secret)
+    @_prefix = prefix.is_a?(Array) ? prefix.join(':') : prefix.to_s
+  end
+
+  def generate(message = nil)
+    fullmessage = [FoodsoftConfig.scope, @_prefix]
+    fullmessage.append(message) unless message.nil?
+    super(fullmessage)
+  end
+
+  def verify(message)
+    r = super(message)
+    raise InvalidMessage unless r.is_a?(Array) && r.length >= 2 && r.length <= 3
+    raise InvalidScope unless r[0] == FoodsoftConfig.scope
+    raise InvalidPrefix unless r[1] == @_prefix
+
+    # return original message
+    if r.length > 2
+      r[2]
+    end
+  end
+
+  class InvalidMessage < ActiveSupport::MessageVerifier::InvalidSignature; end
+
+  class InvalidScope < ActiveSupport::MessageVerifier::InvalidSignature; end
+
+  class InvalidPrefix < ActiveSupport::MessageVerifier::InvalidSignature; end
+
+  def self.secret
+    # secret_key_base for Rails 4, but Rails 3 initializer may still be used
+    Foodsoft::Application.config.secret_key_base || Foodsoft::Application.config.secret_token
+  end
+end