zig-smtp/nix/ at 554c3edbccb1be5df04dc543707b538cdde423b8 · jcollie.dev/zig-smtp · Tangled

jcollie.dev / zig-smtp

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An SMTP client and server library for Zig implementing RFC 5321.

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zig-smtp / nix

2 files

at 554c3edbccb1be5df04dc543707b538cdde423b8

Jeffrey C. Ollie Add SMTP AUTH to client and server 13d ago

interop-test.nix

Add SMTP AUTH to client and server Client (RFC 4954/4616/2195): - Extensions.auth parses the advertised mechanism list (including the legacy AUTH= form) into plain/login/cram_md5 flags - authLogin and authCramMd5 join authPlain; CRAM-MD5 is verified against the RFC 2195 example vector - authenticate() picks PLAIN, then LOGIN, then CRAM-MD5; a 535 surfaces as error.AuthenticationFailed with the reply in last_reply Server: - an optional authenticate handler callback enables AUTH PLAIN and LOGIN: initial responses, 334 challenges, "*" cancellation, bad base64 (501), unknown mechanism (504), re-auth/mid-transaction (503) - Options.require_auth rejects MAIL with 530 until authenticated; STARTTLS resets auth state CLI: send grew --user/--password/--auth-method, serve grew --auth user:pass (implies require_auth). VM interop additions: zsmtp client authenticates to Exim via PLAIN and LOGIN (its plaintext authenticator; CRAM-MD5 is not compiled into nixpkgs exim) with a wrong-password rejection, and swaks authenticates to the auth-required zsmtp server via PLAIN and LOGIN with wrong-password and unauthenticated rejections. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_012HBHFhoTYa8TU9GLwobfbx

1 week ago

Add Nix package and NixOS VM interop tests nix/package.nix builds zsmtp with zig_0_16 and runs the unit tests; the tls.zig dependency is provided offline by materializing it into the project-local zig-pkg/<hash>/ directory with only the files from the dependency's paths list, so Zig's content hash matches. nix/interop-test.nix exercises zsmtp against third-party implementations in one VM: - zsmtp client -> Postfix: plaintext (25), STARTTLS (25), implicit TLS (465, submissions wrapper mode), verified via alice's maildir spool - swaks -> zsmtp server: plaintext and STARTTLS (snakeoil EC cert), verified via the server's journal Exposed as packages.zsmtp/default and checks.{zsmtp,interop}. Postfix on NixOS delivers maildir-style (mail_spool_directory has a trailing slash), so assertions grep the directory recursively, with 60s timeouts to fail fast. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_012HBHFhoTYa8TU9GLwobfbx

1 week ago