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class UserAgent
module OperatingSystems
IOS_VERSION_REGEX = /CPU (?:iPhone |iPod )?OS ([\d_]+) like Mac OS X/
Windows = {
"Windows NT 10.0" => "Windows 10",
"Windows NT 6.3" => "Windows 8.1",
"Windows NT 6.2" => "Windows 8",
"Windows NT 6.1" => "Windows 7",
"Windows NT 6.0" => "Windows Vista",
"Windows NT 5.2" => "Windows XP x64 Edition",
"Windows NT 5.1" => "Windows XP",
"Windows NT 5.01" => "Windows 2000, Service Pack 1 (SP1)",
"Windows NT 5.0" => "Windows 2000",
"Windows NT 4.0" => "Windows NT 4.0",
"Windows 98" => "Windows 98",
"Windows 95" => "Windows 95",
"Windows CE" => "Windows CE"
}.freeze
def self.normalize_os(os)
Windows[os] || normalize_mac_os_x(os) || normalize_ios(os) || normalize_chrome_os(os) || os
end
private
def self.normalize_chrome_os(os)
if os =~ /CrOS\s([^\s]+)\s(\d+(\.\d+)*)/
if $2.nil?
"ChromeOS"
else
version = $2
"ChromeOS #{version}"
end
end
end
def self.normalize_ios(os)
if os =~ IOS_VERSION_REGEX
if $1.nil?
"iOS"
else
version = $1.tr('_', '.')
"iOS #{version}"
end
end
end
def self.normalize_mac_os_x(os)
if os =~ /(?:Intel|PPC) Mac OS X\s*([0-9_\.]+)?/
if $1.nil?
"OS X"
else
version = $1.tr('_', '.')
"OS X #{version}"
end
end
end
end
end
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