# See LICENSE.txt for permissions.

#++

# Some system might not have OpenSSL installed, therefore the core

# library file openssl might not be available. We localize testing

# for the presence of OpenSSL in this file.

module Gem

class << self

# Is SSL (used by the signing commands) available on this

# platform?

def ssl_available?

@ssl_available

end

attr_writer :ssl_available

# Ensure that SSL is available. Throw an exception if it is not.

def ensure_ssl_available

unless ssl_available?

fail Gem::Exception, "SSL is not installed on this system"

Gem.ssl_available = false

end

module Gem::SSL

# We make our own versions of the constants here. This allows us

# These constants are only used during load time. At runtime, any

# method that makes a direct reference to SSL software must be

# protected with a Gem.ensure_ssl_available call.

if Gem.ssl_available? then

PKEY_RSA = OpenSSL::PKey::RSA

DIGEST_SHA1 = OpenSSL::Digest::SHA1

end