1 files changed, 60 insertions, 0 deletions
diff --git a/vendor/gems/mail-smtp_pool/lib/mail/smtp_pool/connection.rb b/vendor/gems/mail-smtp_pool/lib/mail/smtp_pool/connection.rb
new file mode 100644
index 00000000000..ab0d20153d8
--- /dev/null
+++ b/vendor/gems/mail-smtp_pool/lib/mail/smtp_pool/connection.rb
@@ -0,0 +1,60 @@
+# frozen_string_literal: true
+
+# A connection object that can be used to deliver mail.
+#
+# This is meant to be used in a pool so the main difference between this
+# and Mail::SMTP is that this expects deliver! to be called multiple times.
+#
+# SMTP connection reset and error handling is handled by this class and
+# the SMTP connection is not closed after a delivery.
+
+require 'mail'
+
+module Mail
+  class SMTPPool
+    class Connection < Mail::SMTP
+      def initialize(values)
+        super
+
+        @smtp_session = nil
+      end
+
+      def deliver!(mail)
+        response = Mail::SMTPConnection.new(connection: smtp_session, return_response: true).deliver!(mail)
+
+        settings[:return_response] ? response : self
+      end
+
+      def finish
+        finish_smtp_session if @smtp_session && @smtp_session.started?
+      end
+
+      private
+
+      def smtp_session
+        return start_smtp_session if @smtp_session.nil? || !@smtp_session.started?
+        return @smtp_session if reset_smtp_session
+
+        finish_smtp_session
+        start_smtp_session
+      end
+
+      def start_smtp_session
+        @smtp_session = build_smtp_session.start(settings[:domain], settings[:user_name], settings[:password], settings[:authentication])
+      end
+
+      def reset_smtp_session
+        !@smtp_session.instance_variable_get(:@error_occurred) && @smtp_session.rset.success?
+      rescue Net::SMTPError, IOError
+        false
+      end
+
+      def finish_smtp_session
+        @smtp_session.finish
+      rescue Net::SMTPError, IOError
+      ensure
+        @smtp_session = nil
+      end
+    end
+  end
+end