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class RGhost::PdfSecurity
PERMISSION_VALUES = {
base: -4,
print: -4,
modify: -8,
copy: -16,
annotate: -32,
interactive: -256,
copy_access: -512,
assemble: -1024,
high_quality_print: -2048,
all: -3904
}
attr_accessor :owner_password, :user_password, :key_length
def initialize
@permission_value = PERMISSION_VALUES[:all]
@key_lenght = 128
@owner_password = "unknow"
@user_password = "unknow"
end
def disable(*permissions)
@permission_value = permissions.map { |p| PERMISSION_VALUES[p] }.inject(0) { |n, i| i += n }
end
def gs_params
"-sOwnerPassword##{clear_space(@owner_password)} -sUserPassword##{clear_space(@user_password)} -dEncryptionR#3 -dKeyLength##{@key_lenght} -dPermissions##{@permission_value}"
end
private
def clear_space(value)
value.to_s.gsub(/([^\w])/, "")
end
end
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