EMDIS-ECS-0.45

Changes for version 0.45 - 2025-07-21

Config.pm: add ENABLE_ENV_CONFIG setting, along with support for $ENV{envvar} syntax to define configuration settings using environment variable values; add INBOX_OAUTH_TOKEN_CMD, INBOX_OAUTH_TOKEN_CMD_TIMELIMIT, INBOX_OAUTH_SASL_MECHANISM, SMTP_OAUTH_TOKEN_CMD, SMTP_OAUTH_TOKEN_CMD_TIMELIMIT, and SMTP_OAUTH_SASL_MECHANISM settings; add "--pinentry-mode loopback" to default OPENPGP_CMD_ENCRYPT and OPENPGP_CMD_DECRYPT values
ECS.pm: add support for SASL XOAUTH2 and OAUTHBEARER authentication mechanisms on SMTP connection
ecs_scan_mail: add support for SASL XOAUTH2 and OAUTHBEARER authentication mechanisms on POP3 and IMAP connections
ecs_setup: add configuration options for "modern" OAuth 2.0 authentication
ecs_token: add this as example OAuth 2.0 token request helper script for INBOX_OAUTH_TOKEN_CMD and SMTP_OAUTH_TOKEN_CMD
docker/dist/Dockerfile: add diffutils, pass (unix password manager), perl-libwww-perl, and perl-LWP-Protocol-https packages; install Authen::SASL::Perl via CPAN; remove code to install Net::SMTP, Net::POP3 and IO::Socket::SSL via CPAN
docker/rockylinux/Dockerfile: add diffutils, pass (unix password manager), perl-libwww-perl, and perl-LWP-Protocol-https packages; install Authen::SASL::Perl via CPAN
docker/ubuntu/Dockerfile: update to use Ubuntu 24.04; add pass (unix password manager) package; install Authen::SASL::Perl via CPAN
LICENSE: restore missing AGNIS license language about NIH
Ideas for Future Enhancements
send admin message when slow message status > 24 hours
add --reprocess feature(s) to ecstool
build PPM package
add more automated tests, especially for complex operations involving encryption and email
add option to use MIME (RFCs 2045-2049) for encrypted email instead of the existing basic ASCII Armor format (use Email::MIME?)
refactor and clean up code
improve method for handling encr_typ; allow for use of GnuPG with PGP2 protocol
modify handling of incoming messages to send admin email and not process message if subject line indicates message is from THIS_NODE
add option to tweak scan_mail loop in ecs_scan_mail, to insert 5 second delay and increase maximum loop count to 60 (i.e. what Australia did to accommodate Microsoft Exchange)
add option to tweak mbox_get_message function in ecs_scan_mail, to use MIME::QuotedPrint decode_qp function (another Microsoft Exchange workaround)
add ecstool option to process a cleartext file
allow for automatic reprocessing of self-signed message files
add ecstool option to decrypt and assemble a logical message consisting of multiple physical messages