1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
# frozen_string_literal: true
module SecureHeaders
class XDOConfigError < StandardError; end
class XDownloadOptions
HEADER_NAME = "x-download-options".freeze
DEFAULT_VALUE = "noopen"
# Public: generate an x-download-options header.
#
# Returns a default header if no configuration is provided, or a
# header name and value based on the config.
def self.make_header(config = nil, user_agent = nil)
return if config == OPT_OUT
[HEADER_NAME, config || DEFAULT_VALUE]
end
def self.validate_config!(config)
return if config.nil? || config == OPT_OUT
raise TypeError.new("Must be a string. Found #{config.class}: #{config}") unless config.is_a?(String)
unless config.casecmp(DEFAULT_VALUE) == 0
raise XDOConfigError.new("Value can only be nil or 'noopen'")
end
end
end
end
|
