c99eaedafd
Adds the `send` agent command and everything behind it: - store: Account carries SMTP host/port/security (NULL-safe scan/insert/select); admin `account add` gains --smtp-* flags (applied for RW accounts). - policy: OutboundRule.Check(recipients) → (ok, reason); RO ⇒ ro_mode, whitelist-out blocks the whole send if any recipient fails (no partial send). - mail: Header.References; OutgoingMessage + BuildMIME (plain text + attachments, In-Reply-To/References threading, Bcc envelope-only); SendSMTP (tls/starttls, SASL PLAIN, envelope send) via emersion/go-smtp. - cli: SendCmd gates outbound, resolves --reply-to under the inbound filter (filtered/absent source ⇒ not_found), reads attachments, audits, emits the JSON envelope; repeatable --to/--cc/--bcc/--attach flags wired into the router. Implemented test-first; full suite passes incl -race. Validated live against friday.mxlogin.com: real send to me@stevecliff.com, RO + whitelist-out blocks, and --reply-to threading off a live INBOX message. test-creds.md gitignored. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
78 lines
4.3 KiB
Markdown
78 lines
4.3 KiB
Markdown
# emcli — Phase 2 Plan: Send Path
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**Date:** 2026-06-22
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**Depends on:** Phase 1 (read path, encrypted store, policy package, JSON envelope) — complete.
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**Scope (SPEC §7.1 `send`, §9 Outbound, §10 threading headers):** SMTP send, MIME building,
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reply threading, outbound policy (RO rejection + whitelist-out), the `send` agent command,
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and admin support for SMTP account fields.
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## Approach
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Test-first (TDD), one slice at a time, mirroring Phase 1's package boundaries. Pure logic
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(`policy`, MIME building) is unit-tested directly; the live SMTP path is validated against the
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real provider at the end (as Phase 1 did for IMAP), since a unit SMTP server is out of scope.
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## Tasks
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### 1. `store`: load/save SMTP fields on `Account`
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The schema already has `smtp_host/smtp_port/smtp_security`, but `Account` and its
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scan/insert/select don't carry them. Add `SMTPHost string`, `SMTPPort int`,
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`SMTPSecurity string`; thread through `AddAccount`, `GetAccount`, `ListAccounts`,
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`scanAccount`. Admin `account add` gains `--smtp-host/--smtp-port/--smtp-security`.
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**Test:** add an account with SMTP fields, read it back, assert equality.
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### 2. `policy`: outbound rule
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`OutboundRule{ Mode string; WhitelistOutEnabled bool; WhitelistOut []string }` with
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`Check(recipients []string) (ok bool, reason string)`:
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- `Mode == "RO"` → `(false, "ro_mode")`.
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- `WhitelistOutEnabled` and any recipient fails `MatchAddress` → `(false, "whitelist_out")`
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(whole send blocked — no partial).
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- else `(true, "")`.
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**Tests:** table-driven — RW allows; RO blocks; all-recipients-must-pass; domain `@x.com`
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match; case-insensitivity; one bad recipient among good ones blocks all.
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### 3. `mail`: SMTP send + MIME building
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- Add `References` to `Header`; populate in `readHeader` from the `References` header so a
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reply can chain correctly.
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- `SMTPConfig{Host,Port,Security,Username,Password}`.
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- `OutgoingMessage{From,To,Cc,Bcc,Subject,BodyText,Attachments,InReplyTo,References,Date}`.
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- `BuildMIME(OutgoingMessage) ([]byte, error)` via `go-message/mail` writer: a plain-text
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inline part plus any attachments; sets From/To/Cc/Subject/Date and, when present,
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`In-Reply-To`/`References`. (Bcc recipients go in the SMTP envelope, not the headers.)
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- `SendSMTP(SMTPConfig, OutgoingMessage) error`: dial (`tls` → `DialTLS`, `starttls` →
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`DialStartTLS`), `Auth` with SASL PLAIN, then `SendMail(from, allRecipients, mime)`.
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**Tests:** `BuildMIME` round-trips through `ParseMessage` (body + attachment survive);
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threading headers present when set; recipients assembled correctly. Live send deferred to task 6.
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### 4. `cli`: `send` command + dispatch wiring
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- Add `Send func(store.Account, mail.OutgoingMessage) error` to `Deps` (live impl wraps
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`mail.SendSMTP`).
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- `SendCmd(d, account, to, cc, bcc, subject, body, attachPaths, replyToUID, replyFolder)`:
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1. Load account. Build `OutboundRule`; `Check(to+cc+bcc)` → on block, audit
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`send`/`blocked`/reason and emit policy error.
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2. If `replyToUID > 0`: dial IMAP, apply **inbound** filter (a filtered/invisible source
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UID → `not_found`), fetch its `Message-ID`+`References`, set `InReplyTo`/`References`.
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3. Read `--attach` files from disk into attachments.
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4. `d.Send(acc, msg)`; on success audit `send`/`allowed`, emit `{ "sent": true,
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"recipients": [...] }`.
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- `run.go`: route `send`; repeatable `--to/--cc/--bcc/--attach` (custom `stringSlice`
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flag.Value, also comma-splitting), `--subject/--body/--reply-to/--folder`.
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**Tests (fake Sender + fake Mailer):** RO blocks (sender never called); whitelist-out blocks;
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happy path calls sender with right recipients and emits success; reply-to on a filtered
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source returns `not_found`.
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### 5. Build / vet / full test suite (incl `-race`)
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`CGO_ENABLED=0 go build`, `go vet ./...`, `go test ./...` and `-race`. Pristine output.
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### 6. Live send validation
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Configure an RW account with the test SMTP creds (`emcli@stevecliff.com` @
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`friday.mxlogin.com`), send a real message to `me@stevecliff.com`, confirm the success
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envelope. Spot-check enforcement live: RO account rejects send; whitelist-out blocks a
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non-listed recipient.
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## Out of scope (later phases)
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- OAuth2 send auth (Phase 3) — password/SASL-PLAIN only here.
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- Admin TUI / `doctor` (Phase 4).
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- Carry-over Minor items from Phase 1 (audit-row completeness, CLI polish) — touch only if
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directly in the way.
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