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# File 'lib/lockbox/carrier_wave_extensions.rb', line 3
def encrypt(**options)
class_eval do
before :cache, :encrypt
define_singleton_method :lockbox_options do
options
end
def encrypt(file)
raise Lockbox::Error, "Expected files to be equal. Please report an issue." unless file && @file && file == @file
@file = CarrierWave::SanitizedFile.new(lockbox_notify("encrypt_file") { lockbox.encrypt_io(file) })
end
def read
r = super
lockbox_notify("decrypt_file") { lockbox.decrypt(r) } if r
end
def size
read.bytesize
end
def content_type
if Gem::Version.new(CarrierWave::VERSION) >= Gem::Version.new("2.2.1")
Marcel::Magic.by_magic(read).try(:type) || "invalid/invalid"
elsif CarrierWave::VERSION.to_i >= 2
MimeMagic.by_magic(read).try(:type) || "invalid/invalid"
else
super
end
end
def rotate_encryption!
io = Lockbox::IO.new(read)
io.original_filename = file.filename
previous_value = enable_processing
begin
self.enable_processing = false
store!(io)
ensure
self.enable_processing = previous_value
end
end
private
define_method :lockbox do
@lockbox ||= begin
table = model ? model.class.table_name : "_uploader"
attribute = lockbox_name
Utils.build_box(self, options, table, attribute)
end
end
def lockbox_name
if mounted_as
mounted_as.to_s
else
uploader = self
while uploader.parent_version
uploader = uploader.parent_version
end
uploader.class.name.delete_suffix("Uploader").underscore
end
end
def lockbox_notify(type)
if defined?(ActiveSupport::Notifications)
name = lockbox_name
version, _ = parent_version && parent_version.versions.find { |k, v| v == self }
name = "#{name} #{version} version" if version
ActiveSupport::Notifications.instrument("#{type}.lockbox", {name: name}) do
yield
end
else
yield
end
end
end
end
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