Revert #347

lib/chef-vault/exceptions.rb

@@ -51,8 +51,5 @@ class IdMismatch < Exceptions
 
     class V1Format < Exceptions
     end
-
-    class InvalidValue < Exceptions
-    end
   end
 end

lib/chef/knife/mixin/helper.rb

@@ -39,38 +39,10 @@ def values_from_file(file)
       end
 
       def values_from_json(json)
-        validate_json(json)
         JSON.parse(json)
       rescue JSON::ParserError
         raise JSON::ParserError, "#{json} is not valid JSON!"
       end
-
-      # I/P: json string
-      # Raises `InvalidValue` if any of the json's values contain non-printable characters.
-      def validate_json(json)
-        begin
-          evaled_json = eval(json) # rubocop: disable Security/Eval
-        rescue SyntaxError
-          raise ChefVault::Exceptions::InvalidValue, "#{json} is not valid JSON!"
-        end
-
-        if evaled_json.is_a?(Hash)
-          evaled_json.each do |key, value|
-            next unless printable?(value.to_s)
-
-            msg = "Value '#{value}' of key '#{key}' contains non-printable characters. Check that backslashes are escaped with another backslash (e.g. C:\\\\Windows) in double-quoted strings."
-            ChefVault::Log.warn(msg)
-          end
-        end
-      end
-
-      # I/P: String
-      # O/P: true/false
-      # returns true if string is free of non-printable characters (escape sequences)
-      # this returns false for whitespace escape sequences as well, e.g. \n\t
-      def printable?(string)
-        /[^[:print:]]|[[:space:]]/.match(string)
-      end
     end
   end
 end