* implement SMTP notifier startup check
* check dial, starttls, auth, mail from, rcpt to, reset, and quit
* log the error on failure
* implement mock
* misc optimizations, adjustments, and refactoring
* implement validate_skip config option
* fix comments to end with period
* fix suites that used smtp notifier without a smtp container
* add docs
* add file notifier startup check
* move file mode into const.go
* disable gosec linting on insecureskipverify since it's intended, warned, and discouraged
* minor PR commentary adjustment
* apply suggestions from code review
Co-Authored-By: Amir Zarrinkafsh <nightah@me.com>
- Adjust AUTH LOGIN functionality to be closer to AUTH PLAIN
- Removed: secure (notifier smtp conf) boolean string
- Added: disable_verify_cert (notifier smtp conf) boolean
- disables X509 validation of certificates
- Added: disable_require_tls (notifier smtp conf) boolean
- allows emails to be sent over plain text (for non-authenticated only)
- Added: trusted_cert (notifier smtp conf) string (path)
- allows specifying the path of a PEM format cert to add to trusted cert pool
- Make SMTP notifier return errors on connection over plain text
- Make SMTP notifier return errors on TLS connection with invalid certs
- Implemented various debug logging for the SMTP notifier
- Implemented explicit SMTP closes on errors (previously left con open)
- Split SMTPNotifier Send func to seperate funcs for:
- writing future test suites and startup checks more easily
- organization and readability
- Add details of changes to docs/security.yml
- Adjust config.yml's (template and test) for the changes
James Elliott
Amir Zarrinkafsh
Clement Michaud