Add new resource for certs

app/models/certificate.rb

@@ -0,0 +1,83 @@
+class Certificate < ActiveRecord::Base
+  SIGNED = 'signed'
+  UNSIGNED = 'unsigned'
+  EXPIRED = 'expired'
+  REVOKED = 'revoked'
+  VALID = 'valid'
+
+  validates :csr, presence: true
+
+  def parsed_crt
+    @p_crt ||= OpenSSL::X509::Certificate.new(crt) if crt
+  end
+
+  def parsed_csr
+    @p_csr ||= OpenSSL::X509::Request.new(csr) if csr
+  end
+
+  def revoked?
+    status == REVOKED
+  end
+
+  def status
+    return UNSIGNED if crt.blank?
+    return @cached_status if @cached_status
+
+    @cached_status = SIGNED
+
+    if parsed_crt.not_before > Time.now.utc && parsed_crt.not_after < Time.now.utc
+      @cached_status = EXPIRED
+    end
+
+    crl = OpenSSL::X509::CRL.new(File.open(APP_CONFIG['crl_path']).read)
+    return @cached_status unless crl.revoked.map(&:serial).include?(parsed_crt.serial)
+
+    @cached_status = REVOKED
+  end
+
+  def sign!
+    csr_file = Tempfile.new('client_csr')
+    csr_file.write(csr)
+    csr_file.rewind
+
+    crt_file = Tempfile.new('client_crt')
+    _out, err, _st = Open3.capture3("openssl ca -keyfile #{APP_CONFIG['ca_key_path']} \
+    -cert #{APP_CONFIG['ca_cert_path']} \
+    -extensions usr_cert -notext -md sha256 \
+    -in #{csr_file.path} -out #{crt_file.path} -key '#{APP_CONFIG['ca_key_password']}' -batch")
+
+    if err.match(/Data Base Updated/)
+      crt_file.rewind
+      self.crt = crt_file.read
+      save!
+    else
+      errors.add(:base, I18n.t('failed_to_create_certificate'))
+      logger.error('FAILED TO CREATE CLIENT CERTIFICATE')
+      logger.error(err)
+      return false
+    end
+  end
+
+  def revoke!
+    crt_file = Tempfile.new('client_crt')
+    crt_file.write(crt)
+    crt_file.rewind
+
+    _out, err, _st = Open3.capture3("openssl ca -keyfile #{APP_CONFIG['ca_key_path']} \
+      -cert #{APP_CONFIG['ca_cert_path']} \
+      -revoke #{crt_file.path} -key '#{APP_CONFIG['ca_key_password']}' -batch")
+
+    if err.match(/Data Base Updated/) || err.match(/ERROR:Already revoked/)
+      save!
+    else
+      errors.add(:base, I18n.t('failed_to_revoke_certificate'))
+      logger.error('FAILED TO REVOKE CLIENT CERTIFICATE')
+      logger.error(err)
+      return false
+    end
+
+    _out, _err, _st = Open3.capture3("openssl ca -keyfile #{APP_CONFIG['ca_key_path']} \
+      -cert #{APP_CONFIG['ca_cert_path']} \
+      -gencrl -out #{APP_CONFIG['crl_path']} -key '#{APP_CONFIG['ca_key_password']}' -batch")
+  end
+end