Module: TLSPretense::ExtCompat::OpenSSLPKeyRead

Defined in:
lib/tlspretense/ext_compat/openssl_pkey_read.rb

Overview

In Ruby versions before 1.9.3, OpenSSL::PKey.read does not exist. It is not something that can be easily back-ported (it is written in C with OpenSSL functions that are not directly exposed through the Ruby library), so this module provides a partial reimplementation suitable for TLSPretense’s purposes.

It blindly tries each class until one works. If none work, it finally gives up. The error message won’t ever be particularly helpful.

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.check_and_apply_patch ⇒ Object 



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# File 'lib/tlspretense/ext_compat/openssl_pkey_read.rb', line 29

def self.check_and_apply_patch
  unless ::OpenSSL::PKey.respond_to? :read
    $stderr.puts "Warning: OpenSSL::PKey does not respond to :read (added in Ruby 1.9.3). Monkeypatching it to provide enough functionality for TLSPretense."
    ::OpenSSL::PKey.extend(self)
  end
end

Instance Method Details

#read(data, passwd = nil) ⇒ Object 



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# File 'lib/tlspretense/ext_compat/openssl_pkey_read.rb', line 13

def read(data, passwd=nil)
  begin
    OpenSSL::PKey::RSA.new(data, passwd)
  rescue OpenSSL::PKey::RSAError => e
    begin
      OpenSSL::PKey::DSA.new(data, passwd)
    rescue OpenSSL::PKey::DSAError
      begin
        OpenSSL::PKey::EC.new(data, passwd)
      rescue OpenSSL::PKey::ECError
        raise "Failed to read a private key. Is the password correct?"
      end
    end
  end
end