Commit Graph
6 Commits
Author SHA1 Message Date
mixandClaude Opus 5.5 4dd46ea355 dmarc: a report is bounded, kept per domain, and ingested one at a time
Security review of the DMARC report path (Fable, 2026-10-11), which ran
for the first time in 2.0.0. No Critical or High finding. Fixed:

- Medium: a report was bounded only as 8 MiB of XML - some 160 000
  records or one name of megabytes, all of it rows and table cells. At
  most 5 000 records (more is ErrRejected, dropped), text fields cut to
  255 bytes on a character boundary, a record's count capped.
- Medium: the cap of 500 reports was for the whole server, so a stranger
  filing under one domain's address evicted every other domain's
  reports. PruneDMARCReports counts per domain.
- Low: the pipe service ran up to default_process_limit (100) commands
  at once against the panel's database; maxproc is 1.
- Low: the reason logged for a dropped message carried the sender's
  bytes (header line, zip entry name) as they came; cut to 200 bytes and
  reduced to printable ASCII, zip entry names quoted.
- Low: SELFPOST_DATA_DIR / SELFPOST_DB_PATH with whitespace or "$" would
  reach the command through export_environment as another path; refused
  at start when DMARC ingest is on.

Left as they are, told to the owner: the parse-failure count is a
lifetime figure shown under "This week"; a report larger than the
command reads is dropped as unreadable; nested multipart is not searched.

The hub's Retention line follows the design commit before this one.
security.md: the review, and the accepted-risk entry says what a
stranger can and cannot do now. The roadmap no longer calls the review
pending.

  go vet ./cmd/... ./internal/dmarc/ ./internal/store/: ok
  go test ./cmd/... ./internal/dmarc/ ./internal/store/ ./internal/web/...: ok
  make e2e on the test server (with the port-25 scenarios of the next
  commit): ok

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-11 17:40:31 +03:00
mixandClaude Opus 5.5 c5588ebba1 panel-redesign: the DMARC hub before the first report says what to do now
- The hint under "Last report: None yet" still said "Point rua= at the
    hosted address below" - there is no such address any more, and nothing
    is below. It names the three steps of the three-choice scheme: set a
    domain to SelfPost hosted in its Domain settings, publish the DMARC
    record the domain then shows, publish MX for the server's name.
  - The hosted address form is Fact.Small, as in the mockup.

  go test -count=1 ./internal/web/...: ok

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-11 00:13:51 +03:00
mixandClaude Opus 5.5 b951eae58c panel-redesign: no report mailbox for the server as a whole
test / test (push) Canceled after 0s
Follows the design commit before it.

  - internal/dmarc: the ingest allow-list is the report address of each
    domain that is on this host and nothing else;
    DefaultHostedReportAddress and DefaultHostedSuggestion are removed.
    Since 1.7.0 the general mailbox dmarc-reports@<hostname> was open
    while no panel-wide default existed; the three-choice scheme had
    left it open always.
  - The DMARC hub's Ingest box shows the form of a hosted address,
    dmarc-reports+<domain>@<hostname>.
  - guide.md: what port 25 accepts.

Evidence: docs/assets/panel-redesign/evidence/dmarc.png re-shot (the
address form wraps after the plus sign in its column at 1440 px).

  go test -count=1 ./internal/dmarc/... ./internal/web/... ./cmd/panel: ok

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-10 23:01:51 +03:00
mixandClaude Opus 5.5 4ab63d08ae panel-redesign: Help with seventeen topics; every box links to its own
Follows the design commit before it. Written by Sonnet, reviewed by
Opus.

  - view/help.go, templates/help.html: the mockup's topics, texts, ids
    and menu. The page shows the groups the reader's menu shows:
    Overview and Server for the global role, Outbound and Inbound by
    reach (Inbound only with the feature on), Account for everyone;
    boxes are numbered as shown.
  - Box.Help set on the boxes the mockups mark; the inbound MX box has
    its link again.
  - TestEveryHelpLinkLandsOnATopic also fails on a topic that no page
    links to, unless it is listed as menu-only (account) - and on a
    stale exception.

Known until the change that follows: the dns, dmarc and account topics
describe the three-choice report address, which the code does not have
yet; Account's DMARC box still links to #dns.

Not verified by running: three sentences rest on Postfix behaviour
(delivery is deferred when a required TLS session cannot be made; a
milter with default_action=tempfail answers 4xx; with "any recipient"
an address the upstream refuses comes back as a bounce).

Evidence
  - docs/assets/panel-redesign/evidence/help.png (1440x3600) and
    in-domain.png: headless Edge, real templates served locally with
    their fixtures - NOT from the container.
  - go test -count=1 ./internal/web/... ./cmd/panel: ok (six packages).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-10 11:58:36 +03:00
mixandClaude Opus 5.5 b2fbe91de9 panel-redesign: security review of 2.0 - sessions belong to a user by id
Stage 3, step 2. Reviewed by Fable (read-only), fixed by Sonnet with a
failing test before each fix, checked by Opus. No Critical or High
finding: route authorization, tenant isolation by id, the /server/
subtree guard, output encoding and the origin check were found sound.

Fixed
  - M1: a session was keyed by user name and had no link to the user. A
    deleted or renamed user's cookie stayed alive (renewed on every hit,
    before the user was looked up) and became a session of whoever was
    later created under that name, with that account's role. The
    baseline now has sessions.user_id REFERENCES users(id) ON DELETE
    CASCADE; the principal is resolved by id and a session is renewed
    only after its user was found. RenameSession is gone.
  - M2: any user's password change deleted every other user's sessions.
    It ends that user's other sessions only.
  - L1: a password set on the user form ends that user's sessions (an
    administrator editing their own account keeps the current one).
  - L2: store, saslpasswd2 and Postfix reload errors were shown verbatim
    on the application form, the inbound upstream / recipients forms and
    the limit recalculation - pages a domain administrator reaches.
    Validation errors (app.ValidationError, inbound.ValidationError,
    store.ErrNotAutoRateLimit) keep their text; anything else is logged
    and shown as "Could not save ... Check the logs and try again."
  - L3: store.ListDMARCReports treated an empty domain list as "all". It
    takes a scope now (AllDomains or a list; an empty list is no rows),
    and the DMARC hub is open to the domain role as the plan says: the
    reports of the assigned domains, without the instance-wide ingest
    box. The menu entry was already shown to them and led to a 404.
  - I1: /static/ answered with a listing of the embedded assets. A path
    that is not a known asset is a 404.

Consequences
  - The global DMARC hub lists reports of domains that were deleted
    since, too.
  - dev/migrate1x (not in the tree) no longer carries sessions over:
    everyone signs in again after the transfer.
  - docs/schema-migrations.md: the sessions row.

Recorded, not changed - for the owner:
  - L4: the report-address select names the followed user and their
    address to every administrator of the domain, by default the global
    administrator's login name. The plan asks for it.
  - L5: a delegated inbound upstream may be any host and port, loopback
    and private ranges included - within the trusted-operator model; to
    be listed among the accepted risks in security.md.
  - L6: Account's profile is saved without the password; becomes a
    requirement once password-reset mails to users.email.
  - Still echoing an error's text: backup and domain import (global
    only), the domain form's validation messages.

Not checked by the review: anything needing the container (e2e, real
Postfix / DNS), CSP behaviour in a live browser.

  go test -count=1 ./internal/web/... ./internal/store/... ./internal/app/...
    ./internal/inbound/... ./internal/dmarc/... ./cmd/panel
      ok  (all eleven packages; dev/migrate1x also ok)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-10 03:04:02 +03:00
mixandClaude Opus 5.5 2f1ec65b30 panel-redesign: Outbound log, message and the DMARC report pages on the kit
Stage 2, step 4. Written by Sonnet, reviewed by Opus.

  - Five pages named after their mockups: out-log, out-message, dmarc,
    dmarc-domain, dmarc-report, with typed page data
    (view/outbound_log.go, dmarc.go), fixtures and tests. The engine
    pages deliveries and delivery are gone with their templates; the
    three DMARC templates are written anew. All five old names are off
    legacy_pages.txt.
  - The log polls its table (GET /outbound/log/fragment, as before); the
    page count in the box foot follows out of band, and the filter in
    the head is no longer swapped away while it is being chosen.
  - Handlers pass typed data; routes, query parameters, filters, paging
    and authorization are unchanged.
  - Kit: Foot.ID / Foot.OOB (attributes only, as on Head) and Fact.Small,
    the mockup's "sp-mono sp-small" value, for a report id and an rua
    that wrapped mid-word in their column.
  - test/e2e status scrapers match the new tag markup. Not run: no
    Docker here.

Fixed on the way
  - The DMARC domain page read a field its source rows do not have and
    answered 500 as soon as the domain had a source. It builds the rows
    from the store's rollup now, with a test.

Differences from the mockups, for the owner:
  - the log has no Status filter (the store filters by domain and
    application only); a refused message is "rejected", a neutral tag as
    the mockup's "rate-limited" is;
  - the message history keeps the panel's own wording with full dates and
    has no "accepted from <IP>" step - the client address is not stored;
  - dmarc: before the first report the box says "None yet" with what to
    check; a quiet mailbox is an amber "quiet" tag;
  - dmarc-domain: the stamp is pass / (pass + fail) rounded down, amber
    on any failure, red when nothing passed, absent without mail;
  - dmarc-report: the title has no year; "this relay" marks record rows
    as well as sources.

Known and left as it is (not introduced here): the DMARC hub answers 404
to a domain administrator while the menu shows the entry and the plan
gives that role the reports of its own domains. Opening it needs the
report list to refuse an empty domain filter first - for the stage-3
security review.

Evidence
  - docs/assets/panel-redesign/evidence/out-log.png, out-message.png,
    dmarc.png, dmarc-domain.png, dmarc-report.png: 1440 px wide, headless
    Edge, real templates served locally with their fixtures - NOT from
    the container (no Docker on this machine).
  - panel/audit.js on the five pages at 1440 and 1280: 784 texts checked,
    problems: [].
  - Polling of the log was exercised in a browser against a local
    fixture server with document.hidden overridden: four polls, one
    table and one foot after each, the filter untouched.
  - go test -count=1 ./internal/web/... ./cmd/panel
      ok  internal/web
      ok  internal/web/auth
      ok  internal/web/handlers
      ok  internal/web/validate
      ok  internal/web/view
      ok  cmd/panel

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-10 01:21:06 +03:00