log tailer: expiry, Postfix's time values and refusal lines as Postfix writes them
test / test (push) Canceled after 0s
test / test (push) Canceled after 0s
Expiry (assumptions A-8). Postfix 3.7.11 logs the end of a message's queue lifetime once per message, "<id>: from=<..>, status=expired, returned to sender" (src/qmgr/qmgr_active.c, qmgr_active_done_25_generic()), with no line per recipient; the tailer waited for "to=..., status=expired", which no Postfix writes, and the sweep closed only queued rows, so such rows stayed deferred. The tailer now reads qmgr's line (ExpireMessage: each recipient's newest open row of the id becomes bounced); the sweep closes a deferred row too when Postfix no longer holds the message, and counts as missed only a final line (sent, bounced, expiry). The queue listing's '#' (forced expiry, showq_compat.c showq_message()) is read as a flag (B-PQ1). Time values (B-PQ10, B-PQ11): conv_time() ported - one number, one lower-case unit, the parameter's default unit when none (get_def_time_unit: d for the lifetimes, h for delay_warning_time), the rest ignored; postconf -h -x expands $name; bounce_queue_lifetime capped at maximal_queue_lifetime as qmgr_post_init() caps it, so LongestLifetime is the queue lifetime. Refusals (A-21, A-23, A-24, A-15): smtpd_whatsup() ends the NOQUEUE line with sasl_username=<login> on an authenticated session; the line is now matched to its row by client, login and sender, and a line without a login is no application's. The client= line's login ends at the comma. The "IPv6:" trim goes (namaddr is built from state->addr). A row recovered from cleanup's line says that line names the last recipient only. Stand (2026-10-14, make e2e, exit 0): new expired_message_is_closed - defer_transports=smtp makes the retry service defer the message, postsuper -e and postqueue -i force its expiry; mail.log has "<id>: from=<alerts@sender.e2e.test>, status=force-expired, returned to sender" and the row goes deferred -> bounced; refusals_show_postfixs_line passes with the login match. go vet and go test ./... pass on the server. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Claude Opus 5.5
+50
-19
@@ -30,13 +30,14 @@ import (
|
||||
// far into mail.log it has read. *store.Store satisfies it.
|
||||
type StatusStore interface {
|
||||
UpdateStatus(queueID, recipient, status string) (int64, error)
|
||||
ListQueuedOlderThan(cutoff time.Time) ([]store.QueuedDelivery, error)
|
||||
ExpireMessage(queueID string) (int64, error)
|
||||
ListOpenOlderThan(cutoff time.Time) ([]store.QueuedDelivery, error)
|
||||
CloseUnreported(id int64) (int64, error)
|
||||
// The counters of delivery_log_days (store/deliverylog.go).
|
||||
AddReconcileClosed(at time.Time, n int64) error
|
||||
AddReconcileMissed(at time.Time, n int64) error
|
||||
AddTailerBlind(from time.Time, d time.Duration) error
|
||||
CountQueuedOlderThan(cutoff time.Time) (int64, error)
|
||||
CountOpenOlderThan(cutoff time.Time) (int64, error)
|
||||
SetQueuedOverLifetime(at time.Time, n int64) error
|
||||
PruneDeliveryLogDays(now time.Time) error
|
||||
RefusalStore
|
||||
@@ -132,15 +133,35 @@ func parseDelivery(line string) (queueID, recipient, status string, ok bool) {
|
||||
status = store.StatusDeferred
|
||||
case "bounced":
|
||||
status = store.StatusBounced
|
||||
case "expired":
|
||||
// Postfix gave up after the queue lifetime; a final failure for us.
|
||||
status = store.StatusBounced
|
||||
default:
|
||||
return "", "", "", false
|
||||
}
|
||||
return m[1], m[2], status, true
|
||||
}
|
||||
|
||||
// expiryRe matches qmgr's line for a message it gave up on:
|
||||
//
|
||||
// postfix/qmgr[93]: 41E862C00D9E: from=<app@example.org>, status=expired, returned to sender
|
||||
//
|
||||
// Postfix 3.7.11, src/qmgr/qmgr_active.c, qmgr_active_done_25_generic():
|
||||
// msg_info("%s: from=<%s>, status=%s, returned to sender") with "expired"
|
||||
// once the queue lifetime has passed, "force-expired" after postsuper -e.
|
||||
// It is the only line about the expiry, one per message, and no recipient is
|
||||
// named (assumptions A-8). The line must end there: the sender is the
|
||||
// client's text, and only qmgr writes this shape.
|
||||
var expiryRe = regexp.MustCompile(`^\S+ \S*/qmgr\[\d+\]: ([0-9A-Za-z]+): from=<.*>, status=(?:force-)?expired, returned to sender\s*$`)
|
||||
|
||||
// parseExpiry returns the queue id of a message Postfix gave up on, from its
|
||||
// expiry line; ok is false for any other line.
|
||||
func parseExpiry(line string) (queueID string, ok bool) {
|
||||
_, rest := SplitTimestamp(line)
|
||||
m := expiryRe.FindStringSubmatch(rest)
|
||||
if m == nil {
|
||||
return "", false
|
||||
}
|
||||
return m[1], true
|
||||
}
|
||||
|
||||
// Run follows path and updates send-log statuses until ctx is cancelled, while
|
||||
// a background sweep prunes rows older than retention(). Reading resumes at
|
||||
// the offset the previous run persisted, so a restart parses the delivery lines
|
||||
@@ -199,6 +220,11 @@ func Run(ctx context.Context, path string, st StatusStore, retention RetentionDa
|
||||
refusals.handle(line, now, Place{FP: tr.line.FP, End: tr.lineStart})
|
||||
queueID, recipient, status, ok := parseDelivery(line)
|
||||
if !ok {
|
||||
if queueID, ok := parseExpiry(line); ok {
|
||||
if _, err := st.ExpireMessage(queueID); err != nil {
|
||||
log.Printf("log-tailer: expire %s: %v", queueID, err)
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
if _, err := st.UpdateStatus(queueID, recipient, status); err != nil {
|
||||
@@ -243,11 +269,11 @@ func reconcileLoop(ctx context.Context, st StatusStore, caughtUp <-chan struct{}
|
||||
}
|
||||
}
|
||||
|
||||
// countStuck records how many rows are still queued past Postfix's queue
|
||||
// countStuck records how many rows are still open past Postfix's queue
|
||||
// lifetime - what the log would leave unresolved if there were no sweep. Each
|
||||
// sweep overwrites the day's value, so a past day keeps its last sweep's.
|
||||
func countStuck(st StatusStore, now time.Time, overLifetime time.Duration) {
|
||||
n, err := st.CountQueuedOlderThan(now.Add(-overLifetime))
|
||||
n, err := st.CountOpenOlderThan(now.Add(-overLifetime))
|
||||
if err == nil {
|
||||
err = st.SetQueuedOverLifetime(now, n)
|
||||
}
|
||||
@@ -256,10 +282,10 @@ func countStuck(st StatusStore, now time.Time, overLifetime time.Duration) {
|
||||
}
|
||||
}
|
||||
|
||||
// reconcile marks as bounced every row still "queued" from before cutoff whose
|
||||
// message Postfix no longer holds, with reason "reconcile". The close itself
|
||||
// is conditional on the row still being queued, so a delivery line read
|
||||
// between the listing and the close wins.
|
||||
// reconcile marks as bounced every row still open ("queued" or "deferred")
|
||||
// from before cutoff whose message Postfix no longer holds, with reason
|
||||
// "reconcile". The close itself is conditional on the row still being open,
|
||||
// so a final delivery line read between the listing and the close wins.
|
||||
//
|
||||
// A row reaches this state only when its delivery lines are gone for good — the
|
||||
// log rotated past its fourteen files while the panel was down, or was deleted
|
||||
@@ -279,9 +305,9 @@ func countStuck(st StatusStore, now time.Time, overLifetime time.Duration) {
|
||||
// is what tells a tailer that loses lines from a log that lost them, which
|
||||
// reconcile_contradicted cannot - a lost line is never read late.
|
||||
func reconcile(st StatusStore, cutoff time.Time, path string) {
|
||||
rows, err := st.ListQueuedOlderThan(cutoff)
|
||||
rows, err := st.ListOpenOlderThan(cutoff)
|
||||
if err != nil {
|
||||
log.Printf("log-tailer: reconcile: list queued rows: %v", err)
|
||||
log.Printf("log-tailer: reconcile: list open rows: %v", err)
|
||||
return
|
||||
}
|
||||
if len(rows) == 0 {
|
||||
@@ -307,7 +333,7 @@ func reconcile(st StatusStore, cutoff time.Time, path string) {
|
||||
continue
|
||||
}
|
||||
closed += n
|
||||
if n > 0 && deliveryInLog(path, row) {
|
||||
if n > 0 && resultInLog(path, row) {
|
||||
log.Printf("log-tailer: reconcile: %s/%s had a delivery line in the log the tailer did not read", row.QueueID, row.To)
|
||||
missed++
|
||||
}
|
||||
@@ -323,13 +349,15 @@ func reconcile(st StatusStore, cutoff time.Time, path string) {
|
||||
}
|
||||
}
|
||||
|
||||
// deliveryInLog says whether the current log or the one rotated last holds a
|
||||
// delivery line for row. Rows reach the sweep minutes after they were
|
||||
// written, so the end of those two files is where such a line would be.
|
||||
// resultInLog says whether the current log or the one rotated last holds a
|
||||
// final result for row - a delivery line that says sent or bounced, or the
|
||||
// message's expiry line. A deferred line is not one: a deferred row has one
|
||||
// by definition. Rows reach the sweep minutes after they were written, so
|
||||
// the end of those two files is where such a line would be.
|
||||
// logrotate 3.21.0, logrotate.c, prerotateSingleLog(): the first rotated
|
||||
// name is "<log>.1", without the compression suffix under delaycompress
|
||||
// (build/logrotate-mail.conf).
|
||||
func deliveryInLog(path string, row store.QueuedDelivery) bool {
|
||||
func resultInLog(path string, row store.QueuedDelivery) bool {
|
||||
if path == "" {
|
||||
return false
|
||||
}
|
||||
@@ -339,7 +367,10 @@ func deliveryInLog(path string, row store.QueuedDelivery) bool {
|
||||
continue
|
||||
}
|
||||
for _, line := range lines {
|
||||
if q, r, _, ok := parseDelivery(line); ok && q == row.QueueID && strings.EqualFold(r, row.To) {
|
||||
if q, r, s, ok := parseDelivery(line); ok && q == row.QueueID && strings.EqualFold(r, row.To) && s != store.StatusDeferred {
|
||||
return true
|
||||
}
|
||||
if q, ok := parseExpiry(line); ok && q == row.QueueID {
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
||||
@@ -17,10 +17,69 @@ import (
|
||||
// The mail.log lines in this file are composed by hand, after the formats the
|
||||
// code cites (Postfix 3.7.11, src/global/log_adhoc.c and the others), unless a
|
||||
// comment says where one was seen. Some are shapes Postfix does not write:
|
||||
// "to=..., status=expired" (qmgr logs expiry once per message as "from=<..>,
|
||||
// status=expired, returned to sender" - assumptions A-8), ISO stamps
|
||||
// (msg_logger.c writes "%b %d %H:%M:%S" - A-12), and opendkim lines in
|
||||
// mail.log (build/opendkim.conf has Syslog no).
|
||||
// ISO stamps (msg_logger.c writes "%b %d %H:%M:%S" - A-12), and opendkim
|
||||
// lines in mail.log (build/opendkim.conf has Syslog no).
|
||||
// qmgr's expiry line, as Postfix 3.7.11 writes it (src/qmgr/qmgr_active.c,
|
||||
// qmgr_active_done_25_generic(): "%s: from=<%s>, status=%s, returned to
|
||||
// sender"); composed by hand after that format. The sender is the client's
|
||||
// text, so a line only resembles one when it ends as qmgr's does.
|
||||
func TestParseExpiry(t *testing.T) {
|
||||
for _, c := range []struct {
|
||||
line string
|
||||
id string
|
||||
}{
|
||||
{"Oct 14 09:01:02 relay postfix/qmgr[93]: 41E862C00D9E: from=<app@example.org>, status=expired, returned to sender", "41E862C00D9E"},
|
||||
{"Oct 14 09:01:02 relay postfix/qmgr[93]: 3Fq1Lw0bZ8z9tN: from=<>, status=force-expired, returned to sender", "3Fq1Lw0bZ8z9tN"},
|
||||
// Not qmgr.
|
||||
{"Oct 14 09:01:02 relay postfix/smtp[26]: 41E862C00D9E: from=<app@example.org>, status=expired, returned to sender", ""},
|
||||
// qmgr's ordinary from= line, whose sender carries the text.
|
||||
{"Oct 14 09:01:02 relay postfix/qmgr[93]: 41E862C00D9E: from=<x>, status=expired, returned to sender>, size=500, nrcpt=1 (queue active)", ""},
|
||||
{"Oct 14 09:01:02 relay postfix/qmgr[93]: 41E862C00D9E: removed", ""},
|
||||
} {
|
||||
id, ok := parseExpiry(c.line)
|
||||
if ok != (c.id != "") || id != c.id {
|
||||
t.Errorf("parseExpiry(%q) = %q, %v; want %q", c.line, id, ok, c.id)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// The tailer closes an expired message's rows when it reads qmgr's line.
|
||||
func TestExpiryLineClosesTheMessage(t *testing.T) {
|
||||
path := filepath.Join(t.TempDir(), "mail.log")
|
||||
if err := os.WriteFile(path, nil, 0o644); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
cs := &captureStore{}
|
||||
stop := startRun(t, path, cs)
|
||||
defer stop()
|
||||
appendLine(t, path, "Oct 14 09:01:00 relay postfix/smtp[26]: 41E862C00D9E: to=<a@example.net>, relay=none, delay=9, dsn=4.4.1, status=deferred (connect timed out)")
|
||||
appendLine(t, path, "Oct 14 09:01:02 relay postfix/qmgr[93]: 41E862C00D9E: from=<app@example.org>, status=expired, returned to sender")
|
||||
waitFor(t, func() bool { return contains(cs.snapshot(), "41E862C00D9E|*|expired") })
|
||||
if !contains(cs.snapshot(), "41E862C00D9E|a@example.net|"+store.StatusDeferred) {
|
||||
t.Fatalf("calls = %v, want the deferral before the expiry", cs.snapshot())
|
||||
}
|
||||
}
|
||||
|
||||
// A deferred row the sweep closes is not "missed" for its deferred line - it
|
||||
// has one by definition - but is for its message's expiry line.
|
||||
func TestReconcileMissedCountsOnlyFinalLines(t *testing.T) {
|
||||
stubQueue(t, nil)
|
||||
path := filepath.Join(t.TempDir(), "mail.log")
|
||||
if err := os.WriteFile(path, []byte(
|
||||
"Oct 14 10:59:58 mail postfix/smtp[26]: DEFQ: to=<late@example.net>, relay=none, delay=9, dsn=4.4.1, status=deferred (connect timed out)\n"+
|
||||
"Oct 14 10:59:59 mail postfix/qmgr[10]: EXPQ: from=<app@example.org>, status=expired, returned to sender\n"), 0o644); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
cs := &captureStore{queued: []store.QueuedDelivery{
|
||||
{ID: 1, QueueID: "DEFQ", To: "late@example.net"},
|
||||
{ID: 2, QueueID: "EXPQ", To: "gone@example.net"},
|
||||
}}
|
||||
reconcile(cs, time.Now().UTC(), path)
|
||||
if cs.closed != 2 || cs.missed != 1 {
|
||||
t.Fatalf("closed %d, missed %d; want 2 and 1", cs.closed, cs.missed)
|
||||
}
|
||||
}
|
||||
|
||||
func TestParseDelivery(t *testing.T) {
|
||||
cases := []struct {
|
||||
name string
|
||||
@@ -53,12 +112,11 @@ func TestParseDelivery(t *testing.T) {
|
||||
status: store.StatusBounced,
|
||||
},
|
||||
{
|
||||
name: "expired maps to bounced",
|
||||
line: "host postfix/smtp[26]: DEF: to=<slow@example.net>, relay=none, status=expired (delivery temporarily suspended)",
|
||||
wantOK: true,
|
||||
queueID: "DEF",
|
||||
recipient: "slow@example.net",
|
||||
status: store.StatusBounced,
|
||||
// Expiry is not a delivery line (TestParseExpiry); qmgr's line
|
||||
// for it names no recipient.
|
||||
name: "qmgr expiry line ignored",
|
||||
line: "host postfix/qmgr[10]: DEF: from=<app@example.org>, status=expired, returned to sender",
|
||||
wantOK: false,
|
||||
},
|
||||
{
|
||||
name: "qmgr from-line ignored",
|
||||
@@ -189,10 +247,10 @@ type captureStore struct {
|
||||
haveState bool
|
||||
stateErr error
|
||||
|
||||
// queued is what ListQueuedOlderThan returns, for the reconcile sweep.
|
||||
// queued is what ListOpenOlderThan returns, for the reconcile sweep.
|
||||
queued []store.QueuedDelivery
|
||||
queuedErr error
|
||||
// closed sums AddReconcileClosed; stuckCount is what CountQueuedOlderThan
|
||||
// closed sums AddReconcileClosed; stuckCount is what CountOpenOlderThan
|
||||
// answers and stuck what SetQueuedOverLifetime was given.
|
||||
closed int64
|
||||
missed int64
|
||||
@@ -259,6 +317,14 @@ func (c *captureStore) UpdateStatus(queueID, recipient, status string) (int64, e
|
||||
return 1, nil
|
||||
}
|
||||
|
||||
// ExpireMessage records an expiry line's close as "queue-id|*|expired".
|
||||
func (c *captureStore) ExpireMessage(queueID string) (int64, error) {
|
||||
c.mu.Lock()
|
||||
defer c.mu.Unlock()
|
||||
c.calls = append(c.calls, queueID+"|*|expired")
|
||||
return 1, nil
|
||||
}
|
||||
|
||||
// CloseUnreported records the sweep's close as "queue-id|recipient|reconcile",
|
||||
// finding the row by its id among queued.
|
||||
func (c *captureStore) CloseUnreported(id int64) (int64, error) {
|
||||
@@ -290,11 +356,11 @@ func (c *captureStore) AddReconcileMissed(_ time.Time, n int64) error {
|
||||
return nil
|
||||
}
|
||||
func (c *captureStore) AddTailerBlind(time.Time, time.Duration) error { return nil }
|
||||
func (c *captureStore) AttachRefusalLine(string, string, time.Time, string) (bool, error) {
|
||||
func (c *captureStore) AttachRefusalLine(string, string, string, time.Time, string) (bool, error) {
|
||||
return true, nil
|
||||
}
|
||||
func (c *captureStore) RecoverRefusal(store.SendLogEntry, time.Time) (bool, error) { return false, nil }
|
||||
func (c *captureStore) CountQueuedOlderThan(time.Time) (int64, error) {
|
||||
func (c *captureStore) CountOpenOlderThan(time.Time) (int64, error) {
|
||||
c.mu.Lock()
|
||||
defer c.mu.Unlock()
|
||||
return c.stuckCount, nil
|
||||
@@ -307,7 +373,7 @@ func (c *captureStore) SetQueuedOverLifetime(_ time.Time, n int64) error {
|
||||
}
|
||||
func (c *captureStore) PruneDeliveryLogDays(time.Time) error { return nil }
|
||||
|
||||
func (c *captureStore) ListQueuedOlderThan(time.Time) ([]store.QueuedDelivery, error) {
|
||||
func (c *captureStore) ListOpenOlderThan(time.Time) ([]store.QueuedDelivery, error) {
|
||||
c.mu.Lock()
|
||||
defer c.mu.Unlock()
|
||||
return c.queued, c.queuedErr
|
||||
|
||||
@@ -14,20 +14,24 @@ import (
|
||||
// level-2 limit, a client address off the application's list - is put on the
|
||||
// row the milter wrote, so the message's page shows it (audit 2026-10-12,
|
||||
// stage 2b). The refusal has no queue id; it is matched to its row by client
|
||||
// address, sender and time. As the stand writes it (e2e stand, date not
|
||||
// recorded):
|
||||
// address, login, sender and time:
|
||||
//
|
||||
// postfix/smtpd[1149]: NOQUEUE: milter-reject: MAIL from unknown[10.77.0.1]: 451 4.7.1 Service unavailable - try again later; from=<billing@sender.e2e.test> proto=ESMTP helo=<e2e-client.e2e.test>
|
||||
// postfix/smtpd[1149]: NOQUEUE: milter-reject: MAIL from unknown[10.77.0.1]: 451 4.7.1 Service unavailable - try again later; from=<billing@sender.e2e.test> proto=ESMTP helo=<e2e-client.e2e.test> sasl_username=<l2app>
|
||||
//
|
||||
// Postfix 3.7.11, src/smtpd/smtpd.c, check_milter_reply(): "%s: %s: %s from
|
||||
// %s: %s;%s" with "NOQUEUE" before the queue file is opened, and
|
||||
// smtpd_whatsup() for the rest - " from=<..>" first. smtpd_whatsup() also
|
||||
// ends the line with " sasl_username=<login>" on an authenticated session,
|
||||
// which the quote above lacks and the regexp does not use (assumptions A-20,
|
||||
// A-21).
|
||||
// smtpd_whatsup() for the rest: " from=<..>", " to=<..>", " proto=..",
|
||||
// " helo=<..>", then " sasl_username=<..>" when the session authenticated
|
||||
// (assumptions A-20, A-21). The login is read at the end of the line, where
|
||||
// Postfix puts it last; a line without one is no application's refusal - the
|
||||
// journal milter refuses at MAIL FROM only an authenticated session
|
||||
// (milter/ratelimit.go). The HELO name before it is the client's text and can
|
||||
// end in what looks like the field, but only in a session that has no login,
|
||||
// and so no refused row to take the line; a row must also be of the line's
|
||||
// client address and sender, within minutes.
|
||||
//
|
||||
// Port 25's smtpd (postfix/inbound/smtpd) is a stranger's and has no such row.
|
||||
var refusalLineRe = regexp.MustCompile(`^\S+ postfix/(?:([a-z0-9-]+)/)?smtpd\[\d+\]: NOQUEUE: milter-reject: MAIL from [^\[\s]*\[([^\]]+)\]: [45]\d\d .*?; from=<([^>]*)>`)
|
||||
var refusalLineRe = regexp.MustCompile(`^\S+ postfix/(?:([a-z0-9-]+)/)?smtpd\[\d+\]: NOQUEUE: milter-reject: MAIL from [^\[\s]*\[([^\]]+)\]: [45]\d\d .*?; from=<([^>]*)>(?:.* sasl_username=<([^<>]*)>|.*)$`)
|
||||
|
||||
// refusalLineWait is how long a line waits for its row: the milter writes the
|
||||
// row when it refuses, which can be read a moment after the line.
|
||||
@@ -35,7 +39,7 @@ const refusalLineWait = 30 * time.Second
|
||||
|
||||
// RefusalStore is where the lines go. *store.Store satisfies it.
|
||||
type RefusalStore interface {
|
||||
AttachRefusalLine(clientIP, from string, at time.Time, line string) (bool, error)
|
||||
AttachRefusalLine(clientIP, login, from string, at time.Time, line string) (bool, error)
|
||||
RecoverRefusal(e store.SendLogEntry, at time.Time) (bool, error)
|
||||
}
|
||||
|
||||
@@ -56,18 +60,19 @@ var fromRefusalRe = regexp.MustCompile(`^\S+ postfix/(?:[a-z0-9-]+/)?cleanup\[\d
|
||||
|
||||
// clientLoginRe is smtpd's line naming the login a queue id was submitted
|
||||
// under: "<id>: client=host[addr], sasl_method=PLAIN, sasl_username=<login>".
|
||||
// Postfix 3.7.11, src/smtpd/smtpd.c, mail_open_stream(): ", sasl_sender=<..>"
|
||||
// follows when the client gave AUTH= on MAIL FROM, and "\S+" then takes
|
||||
// "login," with the comma (assumptions A-23).
|
||||
var clientLoginRe = regexp.MustCompile(`^\S+ postfix/(?:([a-z0-9-]+)/)?smtpd\[\d+\]: ([0-9A-Za-z]+): client=.*?, sasl_username=(\S+)`)
|
||||
// Postfix 3.7.11, src/smtpd/smtpd.c, mail_open_stream(): ", sasl_sender=.."
|
||||
// follows when the client gave AUTH= on MAIL FROM, then ", orig_queue_id=.."
|
||||
// and ", orig_client=.." for XFORWARD; the login ends at the comma (a login
|
||||
// holds none - internal/postfix assertMapSafe; assumptions A-23).
|
||||
var clientLoginRe = regexp.MustCompile(`^\S+ postfix/(?:([a-z0-9-]+)/)?smtpd\[\d+\]: ([0-9A-Za-z]+): client=.*?, sasl_username=([^,\s]+)`)
|
||||
|
||||
// refusalLogins bounds the queue ids whose login is remembered.
|
||||
const refusalLogins = 4096
|
||||
|
||||
type pendingRefusal struct {
|
||||
clientIP, from, line string
|
||||
at, until time.Time
|
||||
start Place // where the line starts in the log
|
||||
clientIP, login, from, line string
|
||||
at, until time.Time
|
||||
start Place // where the line starts in the log
|
||||
}
|
||||
|
||||
// pendingRecovery is a From: refusal whose row is looked for once the panel
|
||||
@@ -139,14 +144,17 @@ func (r *refusalLines) handle(line string, now time.Time, start Place) {
|
||||
return
|
||||
}
|
||||
m := refusalLineRe.FindStringSubmatch(rest)
|
||||
if m == nil || m[1] == "inbound" {
|
||||
if m == nil || m[1] == "inbound" || m[4] == "" {
|
||||
return
|
||||
}
|
||||
ip := net.ParseIP(strings.TrimPrefix(m[2], "IPv6:"))
|
||||
// The address in "name[addr]" is smtpd's state->addr, which has no
|
||||
// "IPv6:" (Postfix 3.7.11, src/smtpd/smtpd_peer.c, smtpd_peer_init();
|
||||
// assumptions A-24).
|
||||
ip := net.ParseIP(m[2])
|
||||
if ip == nil {
|
||||
return
|
||||
}
|
||||
p := pendingRefusal{clientIP: ip.String(), from: m[3], line: line, at: at, until: now.Add(refusalLineWait), start: start}
|
||||
p := pendingRefusal{clientIP: ip.String(), login: m[4], from: m[3], line: line, at: at, until: now.Add(refusalLineWait), start: start}
|
||||
if !r.attach(p) {
|
||||
r.pending = append(r.pending, p)
|
||||
}
|
||||
@@ -206,7 +214,7 @@ func domainOf(addr string) string {
|
||||
}
|
||||
|
||||
func (r *refusalLines) attach(p pendingRefusal) bool {
|
||||
ok, err := r.st.AttachRefusalLine(p.clientIP, p.from, p.at, p.line)
|
||||
ok, err := r.st.AttachRefusalLine(p.clientIP, p.login, p.from, p.at, p.line)
|
||||
if err != nil {
|
||||
log.Printf("log-tailer: refusal line: %v", err)
|
||||
return true // not retried: the store said no for its own reason
|
||||
|
||||
@@ -19,13 +19,13 @@ func (r *refusalProbe) RecoverRefusal(e store.SendLogEntry, _ time.Time) (bool,
|
||||
return true, nil
|
||||
}
|
||||
|
||||
func (r *refusalProbe) AttachRefusalLine(clientIP, from string, _ time.Time, line string) (bool, error) {
|
||||
func (r *refusalProbe) AttachRefusalLine(clientIP, login, from string, _ time.Time, line string) (bool, error) {
|
||||
if r.rows == 0 {
|
||||
return false, nil
|
||||
}
|
||||
r.rows--
|
||||
r.lines = append(r.lines, line)
|
||||
r.who = append(r.who, clientIP+"|"+from)
|
||||
r.who = append(r.who, clientIP+"|"+login+"|"+from)
|
||||
return true, nil
|
||||
}
|
||||
|
||||
@@ -46,6 +46,9 @@ func TestRefusalLines(t *testing.T) {
|
||||
`2026-10-14T12:00:00+00:00 mail postfix/inbound/smtpd[372]: NOQUEUE: milter-reject: MAIL from unknown[203.0.113.7]: 451 4.7.1 Service unavailable - try again later; from=<a@stranger.example> proto=ESMTP helo=<x>`,
|
||||
`2026-10-14T12:00:00+00:00 mail postfix/smtpd[11]: NOQUEUE: milter-reject: CONNECT from unknown[10.77.0.1]: 451 4.7.1 Service unavailable - try again later; proto=SMTP`,
|
||||
`2026-10-14T12:00:00+00:00 mail postfix/smtpd[11]: NOQUEUE: reject: RCPT from unknown[10.77.0.1]: 553 5.7.1 <a@x>: Sender address rejected: not owned by user app1; from=<a@x> to=<b@y> proto=ESMTP helo=<x>`,
|
||||
// No login: no application's refusal (the panel down refuses every
|
||||
// session, an unauthenticated one too).
|
||||
`2026-10-14T12:00:00+00:00 mail postfix/smtpd[12]: NOQUEUE: milter-reject: MAIL from unknown[10.77.0.1]: 451 4.7.1 Service unavailable - try again later; from=<billing@sender.e2e.test> proto=ESMTP helo=<x>`,
|
||||
} {
|
||||
r.handle(other, now, Place{})
|
||||
}
|
||||
@@ -59,7 +62,7 @@ func TestRefusalLines(t *testing.T) {
|
||||
}
|
||||
st.rows = 1 // the milter's row is written
|
||||
r.retry(now.Add(time.Second))
|
||||
if len(r.pending) != 0 || len(st.lines) != 1 || st.who[0] != "10.77.0.1|billing@sender.e2e.test" {
|
||||
if len(r.pending) != 0 || len(st.lines) != 1 || st.who[0] != "10.77.0.1|l2app|billing@sender.e2e.test" {
|
||||
t.Fatalf("after the retry: pending %d, attached %v", len(r.pending), st.who)
|
||||
}
|
||||
|
||||
|
||||
@@ -19,10 +19,12 @@ func (s *retentionProbeStore) UpdateStatus(string, string, string) (int64, error
|
||||
return 0, nil
|
||||
}
|
||||
|
||||
func (s *retentionProbeStore) ListQueuedOlderThan(time.Time) ([]store.QueuedDelivery, error) {
|
||||
func (s *retentionProbeStore) ListOpenOlderThan(time.Time) ([]store.QueuedDelivery, error) {
|
||||
return nil, nil
|
||||
}
|
||||
|
||||
func (s *retentionProbeStore) ExpireMessage(string) (int64, error) { return 0, nil }
|
||||
|
||||
func (s *retentionProbeStore) CloseUnreported(int64) (int64, error) {
|
||||
return 0, nil
|
||||
}
|
||||
@@ -30,7 +32,7 @@ func (s *retentionProbeStore) CloseUnreported(int64) (int64, error) {
|
||||
func (s *retentionProbeStore) AddReconcileMissed(time.Time, int64) error { return nil }
|
||||
func (s *retentionProbeStore) AddReconcileClosed(time.Time, int64) error { return nil }
|
||||
func (s *retentionProbeStore) AddTailerBlind(time.Time, time.Duration) error { return nil }
|
||||
func (s *retentionProbeStore) CountQueuedOlderThan(time.Time) (int64, error) { return 0, nil }
|
||||
func (s *retentionProbeStore) CountOpenOlderThan(time.Time) (int64, error) { return 0, nil }
|
||||
func (s *retentionProbeStore) SetQueuedOverLifetime(time.Time, int64) error { return nil }
|
||||
func (s *retentionProbeStore) PruneDeliveryLogDays(time.Time) error { return nil }
|
||||
|
||||
@@ -99,7 +101,7 @@ func TestRetentionLoopUsesUpdatedValue(t *testing.T) {
|
||||
t.Fatalf("second prune cutoff age %v, want about 7 days", age)
|
||||
}
|
||||
|
||||
func (s *retentionProbeStore) AttachRefusalLine(string, string, time.Time, string) (bool, error) {
|
||||
func (s *retentionProbeStore) AttachRefusalLine(string, string, string, time.Time, string) (bool, error) {
|
||||
return true, nil
|
||||
}
|
||||
|
||||
|
||||
@@ -2,85 +2,80 @@ package postfix
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"math"
|
||||
"strconv"
|
||||
"strings"
|
||||
"time"
|
||||
"unicode"
|
||||
)
|
||||
|
||||
// ParseDuration converts a Postfix time value to a duration. Units are those
|
||||
// postconf prints and accepts: s, m, h, d, w. A bare number is seconds. Values
|
||||
// may concatenate units (`1h7m`), matching Postfix's own conv_time.
|
||||
func ParseDuration(s string) (time.Duration, error) {
|
||||
s = strings.TrimSpace(s)
|
||||
// ParseTime reads a Postfix time value as Postfix 3.7.11 reads it:
|
||||
// src/global/conv_time.c, conv_time(), called by get_mail_conf_time() in
|
||||
// src/global/mail_conf_time.c. One number - strtol(), so leading blanks and a
|
||||
// "+" are taken, a negative number or one past an int is invalid - followed
|
||||
// by one unit, w d h m or s in lower case; with no unit, defUnit, which
|
||||
// Postfix takes from the parameter's default value (get_def_time_unit(): "5d"
|
||||
// gives d, "300s" s, "0h" h). Whatever follows the unit is ignored, so "1h7m"
|
||||
// is one hour (assumptions B-PQ10, B-PQ11). A string with no digits is read as
|
||||
// 0 of the unit it starts with, as strtol() leaves it there.
|
||||
func ParseTime(s string, defUnit byte) (time.Duration, error) {
|
||||
if s == "" {
|
||||
return 0, fmt.Errorf("postfix: empty time value")
|
||||
}
|
||||
var total time.Duration
|
||||
i := 0
|
||||
for i < len(s) {
|
||||
for i < len(s) && unicode.IsSpace(rune(s[i])) {
|
||||
i++
|
||||
}
|
||||
if i >= len(s) {
|
||||
break
|
||||
}
|
||||
if s[i] == '-' {
|
||||
return 0, fmt.Errorf("postfix: negative time value %q", s)
|
||||
}
|
||||
if s[i] == '+' {
|
||||
i++
|
||||
}
|
||||
start := i
|
||||
for i < len(s) && s[i] >= '0' && s[i] <= '9' {
|
||||
i++
|
||||
}
|
||||
if i == start {
|
||||
return 0, fmt.Errorf("postfix: invalid time value %q", s)
|
||||
}
|
||||
n, err := strconv.ParseInt(s[start:i], 10, 64)
|
||||
if err != nil {
|
||||
return 0, fmt.Errorf("postfix: invalid time value %q", s)
|
||||
}
|
||||
unit := byte('s')
|
||||
if i < len(s) && isTimeUnit(s[i]) {
|
||||
unit = s[i] | 0x20 // ASCII fold to lowercase
|
||||
i++
|
||||
}
|
||||
part, err := durationForUnit(n, unit)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
total += part
|
||||
for i < len(s) && isCSpace(s[i]) {
|
||||
i++
|
||||
}
|
||||
return total, nil
|
||||
}
|
||||
|
||||
func isTimeUnit(c byte) bool {
|
||||
switch c | 0x20 {
|
||||
case 's', 'm', 'h', 'd', 'w':
|
||||
return true
|
||||
neg := false
|
||||
if i < len(s) && (s[i] == '+' || s[i] == '-') {
|
||||
neg = s[i] == '-'
|
||||
i++
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func durationForUnit(n int64, unit byte) (time.Duration, error) {
|
||||
var unitDur time.Duration
|
||||
start := i
|
||||
var n int64
|
||||
for i < len(s) && s[i] >= '0' && s[i] <= '9' {
|
||||
n = n*10 + int64(s[i]-'0')
|
||||
if n > math.MaxInt32 {
|
||||
return 0, fmt.Errorf("postfix: time value %q out of range", s)
|
||||
}
|
||||
i++
|
||||
}
|
||||
end := i
|
||||
if i == start {
|
||||
// strtol() converted nothing: the end is the start of the string.
|
||||
end, n, neg = 0, 0, false
|
||||
}
|
||||
if neg && n > 0 {
|
||||
return 0, fmt.Errorf("postfix: negative time value %q", s)
|
||||
}
|
||||
unit := defUnit
|
||||
if end < len(s) {
|
||||
unit = s[end]
|
||||
}
|
||||
var per int64
|
||||
switch unit {
|
||||
case 's':
|
||||
unitDur = time.Second
|
||||
case 'm':
|
||||
unitDur = time.Minute
|
||||
case 'h':
|
||||
unitDur = time.Hour
|
||||
case 'd':
|
||||
unitDur = 24 * time.Hour
|
||||
case 'w':
|
||||
unitDur = 7 * 24 * time.Hour
|
||||
per = 7 * 24 * 3600
|
||||
case 'd':
|
||||
per = 24 * 3600
|
||||
case 'h':
|
||||
per = 3600
|
||||
case 'm':
|
||||
per = 60
|
||||
case 's':
|
||||
per = 1
|
||||
default:
|
||||
return 0, fmt.Errorf("postfix: unknown time unit %q", string(unit))
|
||||
return 0, fmt.Errorf("postfix: invalid time value %q", s)
|
||||
}
|
||||
return time.Duration(n) * unitDur, nil
|
||||
// conv_time(): "if (intval < INT_MAX / WEEK)" and the like.
|
||||
if per > 1 && n >= math.MaxInt32/per {
|
||||
return 0, fmt.Errorf("postfix: time value %q out of range", s)
|
||||
}
|
||||
return time.Duration(n*per) * time.Second, nil
|
||||
}
|
||||
|
||||
// isCSpace is C's isspace() in the "C" locale, which strtol() skips.
|
||||
func isCSpace(c byte) bool {
|
||||
return c == ' ' || c == '\t' || c == '\n' || c == '\v' || c == '\f' || c == '\r'
|
||||
}
|
||||
|
||||
// FormatDuration renders a Postfix interval the way the Mail queue card and
|
||||
|
||||
@@ -5,39 +5,47 @@ import (
|
||||
"time"
|
||||
)
|
||||
|
||||
func TestParseDuration(t *testing.T) {
|
||||
// Postfix 3.7.11, src/global/conv_time.c, conv_time(): one number, one
|
||||
// lower-case unit, the default unit when there is none, the rest ignored.
|
||||
func TestParseTime(t *testing.T) {
|
||||
cases := []struct {
|
||||
in string
|
||||
unit byte
|
||||
want time.Duration
|
||||
}{
|
||||
{"5d", 5 * 24 * time.Hour},
|
||||
{"300s", 300 * time.Second},
|
||||
{"4000s", 4000 * time.Second},
|
||||
{"1h", time.Hour},
|
||||
{"0", 0},
|
||||
{"0s", 0},
|
||||
{"300", 300 * time.Second},
|
||||
{" 300s ", 300 * time.Second},
|
||||
{"1h7m", time.Hour + 7*time.Minute},
|
||||
{"1w", 7 * 24 * time.Hour},
|
||||
{"2m", 2 * time.Minute},
|
||||
{"5d", 's', 5 * 24 * time.Hour},
|
||||
{"300s", 'd', 300 * time.Second},
|
||||
{"4000s", 's', 4000 * time.Second},
|
||||
{"1h", 's', time.Hour},
|
||||
{"0", 's', 0},
|
||||
{"0s", 's', 0},
|
||||
{"300", 's', 300 * time.Second},
|
||||
{"3", 'd', 3 * 24 * time.Hour}, // maximal_queue_lifetime = 3
|
||||
{"2", 'h', 2 * time.Hour}, // delay_warning_time = 2
|
||||
{" 300s ", 's', 300 * time.Second},
|
||||
{"+5m", 's', 5 * time.Minute},
|
||||
{"1h7m", 's', time.Hour}, // what follows the unit is ignored
|
||||
{"1h 5x", 's', time.Hour},
|
||||
{"1w", 's', 7 * 24 * time.Hour},
|
||||
{"2m", 's', 2 * time.Minute},
|
||||
{"s", 'd', 0}, // strtol() reads nothing and stops at the "s"
|
||||
}
|
||||
for _, tc := range cases {
|
||||
got, err := ParseDuration(tc.in)
|
||||
got, err := ParseTime(tc.in, tc.unit)
|
||||
if err != nil {
|
||||
t.Errorf("ParseDuration(%q): %v", tc.in, err)
|
||||
t.Errorf("ParseTime(%q, %c): %v", tc.in, tc.unit, err)
|
||||
continue
|
||||
}
|
||||
if got != tc.want {
|
||||
t.Errorf("ParseDuration(%q) = %v, want %v", tc.in, got, tc.want)
|
||||
t.Errorf("ParseTime(%q, %c) = %v, want %v", tc.in, tc.unit, got, tc.want)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestParseDurationRejectsInvalid(t *testing.T) {
|
||||
for _, in := range []string{"", "foo", "5x", "-300s", "s", "1h 5x"} {
|
||||
if _, err := ParseDuration(in); err == nil {
|
||||
t.Errorf("ParseDuration(%q) = nil, want error", in)
|
||||
func TestParseTimeRejectsInvalid(t *testing.T) {
|
||||
for _, in := range []string{"", "foo", "5x", "-300s", "5D", "1H", " s", "99999999999s", "400000w"} {
|
||||
if _, err := ParseTime(in, 's'); err == nil {
|
||||
t.Errorf("ParseTime(%q) = nil, want error", in)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@@ -125,12 +125,15 @@ func QueueIDs() (map[string]struct{}, error) {
|
||||
// 3C5B04E6C1* 446 Thu Aug 7 10:12:31 app@example.com
|
||||
//
|
||||
// The id is at the start of the line, optionally flagged '*' (in the active
|
||||
// queue) or '!' (on hold), and is followed by the message size. Requiring the
|
||||
// queue) or '!' (on hold), then '#' when the message was forced to expire
|
||||
// (Postfix 3.7.11, src/postqueue/showq_compat.c, showq_message(): the flags
|
||||
// are appended to the id in that order; assumptions B-PQ1), and is followed
|
||||
// by the message size. Requiring the
|
||||
// size is what separates an entry from the listing's other left-margin lines:
|
||||
// the '-Queue ID-' header, the '-- 5 Kbytes in 2 Requests.' trailer, a deferred
|
||||
// entry's '(connect timed out)' reason, and 'Mail queue is empty'. Recipient
|
||||
// lines are indented and never match.
|
||||
var queueEntryRe = regexp.MustCompile(`^([0-9A-Za-z]+)[*!]?\s+\d+\s`)
|
||||
var queueEntryRe = regexp.MustCompile(`^([0-9A-Za-z]+)[*!]?#?\s+\d+\s`)
|
||||
|
||||
func parseQueueIDs(listing string) map[string]struct{} {
|
||||
ids := make(map[string]struct{})
|
||||
|
||||
@@ -92,10 +92,16 @@ func TestParseQueueIDs(t *testing.T) {
|
||||
A1B2C3D4E5F! 891 Fri Aug 8 10:14:31 app@example.com
|
||||
held@example.net
|
||||
|
||||
-- 1 Kbytes in 3 Requests.
|
||||
6D7E8F9A0B*# 512 Fri Aug 8 10:15:31 app@example.com
|
||||
expiring@example.net
|
||||
|
||||
7E8F9A0B1C# 512 Fri Aug 8 10:16:31 app@example.com
|
||||
expiring2@example.net
|
||||
|
||||
-- 2 Kbytes in 5 Requests.
|
||||
`
|
||||
ids := parseQueueIDs(listing)
|
||||
want := []string{"3C5B04E6C1", "5B4A2C1D3E", "A1B2C3D4E5F"}
|
||||
want := []string{"3C5B04E6C1", "5B4A2C1D3E", "A1B2C3D4E5F", "6D7E8F9A0B", "7E8F9A0B1C"}
|
||||
for _, id := range want {
|
||||
if _, ok := ids[id]; !ok {
|
||||
t.Errorf("queue id %s not found in %v", id, ids)
|
||||
|
||||
@@ -55,6 +55,13 @@ var retryConfKeys = []string{
|
||||
"delay_warning_time",
|
||||
}
|
||||
|
||||
// retryConfUnits is each key's default unit: the last letter of its default
|
||||
// value (Postfix 3.7.11, src/global/mail_params.h, DEF_QUEUE_RUN_DELAY
|
||||
// "300s", DEF_MIN_BACKOFF_TIME, DEF_MAX_BACKOFF_TIME "4000s",
|
||||
// DEF_MAX_QUEUE_TIME "5d", DEF_DSN_QUEUE_TIME "5d", DEF_DELAY_WARN_TIME
|
||||
// "0h"; src/global/mail_conf_time.c, get_def_time_unit()).
|
||||
var retryConfUnits = []byte{'s', 's', 's', 'd', 'd', 'h'}
|
||||
|
||||
// readRetryConf runs `postconf -h` for the retry-policy keys. Tests replace it
|
||||
// the same way logtail stubs queueIDs.
|
||||
var readRetryConf = postconfRetryValues
|
||||
@@ -63,8 +70,9 @@ func postconfRetryValues() ([]string, error) {
|
||||
// Fixed argv, no user input — same pattern as Queue (security.md).
|
||||
// Postfix 3.7.11, src/postconf/postconf_main.c, pcf_show_parameters():
|
||||
// named parameters are printed in argument order, with -h one "%s\n"
|
||||
// value each, as written in main.cf (not expanded without -x).
|
||||
cmd := exec.Command("postconf", "-h",
|
||||
// value each; -x expands "$name" as Postfix itself does when it reads
|
||||
// the value (mail_conf_eval()).
|
||||
cmd := exec.Command("postconf", "-h", "-x",
|
||||
"queue_run_delay",
|
||||
"minimal_backoff_time",
|
||||
"maximal_backoff_time",
|
||||
@@ -109,12 +117,18 @@ func parseRetryPolicy(lines []string) (RetryPolicy, error) {
|
||||
}
|
||||
var durs [6]time.Duration
|
||||
for i, line := range lines {
|
||||
d, err := ParseDuration(line)
|
||||
d, err := ParseTime(line, retryConfUnits[i])
|
||||
if err != nil {
|
||||
return RetryPolicy{}, fmt.Errorf("%s: %w", retryConfKeys[i], err)
|
||||
}
|
||||
durs[i] = d
|
||||
}
|
||||
// Postfix 3.7.11, src/qmgr/qmgr.c, qmgr_post_init(): "bounce_queue_lifetime
|
||||
// is larger than maximal_queue_lifetime - adjusting" - qmgr uses the
|
||||
// smaller.
|
||||
if durs[4] > durs[3] {
|
||||
durs[4] = durs[3]
|
||||
}
|
||||
return RetryPolicy{
|
||||
QueueRunDelay: durs[0],
|
||||
MinimalBackoff: durs[1],
|
||||
@@ -141,13 +155,11 @@ func (p RetryPolicy) BackoffCap() string {
|
||||
// sender, which an application may submit too. It bounds which stored log
|
||||
// lines can be about a send-log row (store.SendLogLines).
|
||||
//
|
||||
// Postfix 3.7.11, src/qmgr/qmgr_active.c, qmgr_active_done(): a message
|
||||
// expires after var_max_queue_time, or var_dsn_queue_time when its sender is
|
||||
// null - whoever submitted it (qmgr.c caps the second at the first).
|
||||
// Postfix 3.7.11, src/qmgr/qmgr_active.c, qmgr_active_done_25_generic(): a
|
||||
// message expires after var_max_queue_time, or var_dsn_queue_time when its
|
||||
// sender is null - whoever submitted it; qmgr.c caps the second at the
|
||||
// first, and so does parseRetryPolicy, which leaves the first the longer.
|
||||
func (p RetryPolicy) LongestLifetime() time.Duration {
|
||||
if p.BounceQueueLifetime > p.MaximalQueueLifetime {
|
||||
return p.BounceQueueLifetime
|
||||
}
|
||||
return p.MaximalQueueLifetime
|
||||
}
|
||||
|
||||
|
||||
@@ -29,14 +29,29 @@ func TestLoadRetryPolicyUsesPostconfValues(t *testing.T) {
|
||||
if p.MaximalQueueLifetime != 2*24*time.Hour {
|
||||
t.Errorf("MaximalQueueLifetime = %v, want 2d", p.MaximalQueueLifetime)
|
||||
}
|
||||
if p.BounceQueueLifetime != 5*24*time.Hour {
|
||||
t.Errorf("BounceQueueLifetime = %v, want 5d", p.BounceQueueLifetime)
|
||||
// 5d over a maximal 2d: qmgr uses 2d (Postfix 3.7.11, src/qmgr/qmgr.c,
|
||||
// qmgr_post_init(), "adjusting bounce_queue_lifetime").
|
||||
if p.BounceQueueLifetime != 2*24*time.Hour {
|
||||
t.Errorf("BounceQueueLifetime = %v, want 2d", p.BounceQueueLifetime)
|
||||
}
|
||||
if p.DelayWarningTime != 0 {
|
||||
t.Errorf("DelayWarningTime = %v, want 0", p.DelayWarningTime)
|
||||
}
|
||||
}
|
||||
|
||||
// A message lives at most maximal_queue_lifetime: qmgr caps
|
||||
// bounce_queue_lifetime at it (Postfix 3.7.11, src/qmgr/qmgr.c,
|
||||
// qmgr_post_init()), so a larger bounce lifetime does not lengthen it.
|
||||
func TestLongestLifetimeIsTheQueueLifetime(t *testing.T) {
|
||||
p, err := parseRetryPolicy([]string{"300s", "300s", "4000s", "1d", "5d", "0h"})
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if p.LongestLifetime() != 24*time.Hour || p.BounceQueueLifetime != 24*time.Hour {
|
||||
t.Fatalf("LongestLifetime %v, BounceQueueLifetime %v; want 24h both", p.LongestLifetime(), p.BounceQueueLifetime)
|
||||
}
|
||||
}
|
||||
|
||||
func TestLoadRetryPolicyFallsBackWhenPostconfFails(t *testing.T) {
|
||||
old := readRetryConf
|
||||
readRetryConf = func() ([]string, error) {
|
||||
|
||||
@@ -69,13 +69,14 @@ func (s *Store) SetQueuedOverLifetime(at time.Time, n int64) error {
|
||||
return nil
|
||||
}
|
||||
|
||||
// CountQueuedOlderThan counts the rows still "queued" that were accepted
|
||||
// before cutoff. created_at is RFC3339 UTC, so the strings compare as times.
|
||||
func (s *Store) CountQueuedOlderThan(cutoff time.Time) (int64, error) {
|
||||
// CountOpenOlderThan counts the rows still open - "queued" or "deferred" -
|
||||
// that were accepted before cutoff. created_at is RFC3339 UTC, so the strings
|
||||
// compare as times.
|
||||
func (s *Store) CountOpenOlderThan(cutoff time.Time) (int64, error) {
|
||||
var n int64
|
||||
err := s.db.QueryRow(
|
||||
`SELECT COUNT(*) FROM send_log WHERE status = ? AND queue_id <> '' AND created_at < ?`,
|
||||
StatusQueued, cutoff.UTC().Format(time.RFC3339),
|
||||
`SELECT COUNT(*) FROM send_log WHERE status IN (?, ?) AND queue_id <> '' AND created_at < ?`,
|
||||
StatusQueued, StatusDeferred, cutoff.UTC().Format(time.RFC3339),
|
||||
).Scan(&n)
|
||||
if err != nil {
|
||||
return 0, fmt.Errorf("count queued send_log rows: %w", err)
|
||||
|
||||
@@ -59,7 +59,7 @@ func TestAddDeliveryLogDayRefusesAnotherColumn(t *testing.T) {
|
||||
}
|
||||
}
|
||||
|
||||
func TestCountQueuedOlderThan(t *testing.T) {
|
||||
func TestCountOpenOlderThan(t *testing.T) {
|
||||
st := openTestStore(t)
|
||||
for _, e := range []SendLogEntry{{QueueID: "Q1", To: "a@example.net"}, {QueueID: "Q2", To: "b@example.net"}} {
|
||||
if err := st.InsertQueued(e); err != nil {
|
||||
@@ -69,10 +69,10 @@ func TestCountQueuedOlderThan(t *testing.T) {
|
||||
if _, err := st.UpdateStatus("Q2", "b@example.net", StatusSent); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if n, err := st.CountQueuedOlderThan(time.Now().Add(time.Hour)); err != nil || n != 1 {
|
||||
if n, err := st.CountOpenOlderThan(time.Now().Add(time.Hour)); err != nil || n != 1 {
|
||||
t.Fatalf("queued rows before an hour from now = %d, %v; want 1", n, err)
|
||||
}
|
||||
if n, err := st.CountQueuedOlderThan(time.Now().Add(-time.Hour)); err != nil || n != 0 {
|
||||
if n, err := st.CountOpenOlderThan(time.Now().Add(-time.Hour)); err != nil || n != 0 {
|
||||
t.Fatalf("queued rows before an hour ago = %d, %v; want 0", n, err)
|
||||
}
|
||||
}
|
||||
|
||||
@@ -28,19 +28,23 @@ func TestAttachRefusalLine(t *testing.T) {
|
||||
}
|
||||
first := "Oct 14 12:00:00 mail postfix/smtpd[1]: NOQUEUE: milter-reject: MAIL from unknown[10.0.0.1]: 451 4.7.1 first"
|
||||
second := "Oct 14 12:00:00 mail postfix/smtpd[2]: NOQUEUE: milter-reject: MAIL from unknown[10.0.0.1]: 451 4.7.1 second"
|
||||
// Another application at the same client, as the same sender: not its.
|
||||
if ok, _ := st.AttachRefusalLine("10.0.0.1", "other", "billing@example.com", now, "another login"); ok {
|
||||
t.Fatal("a line of another login took a row")
|
||||
}
|
||||
for _, line := range []string{first, second} {
|
||||
if ok, err := st.AttachRefusalLine("10.0.0.1", "Billing@example.com", now, line); err != nil || !ok {
|
||||
if ok, err := st.AttachRefusalLine("10.0.0.1", "L2App", "Billing@example.com", now, line); err != nil || !ok {
|
||||
t.Fatalf("attach %q = %v, %v", line, ok, err)
|
||||
}
|
||||
}
|
||||
// Read again after a restart: no row takes it a second time.
|
||||
if ok, _ := st.AttachRefusalLine("10.0.0.1", "billing@example.com", now, first); ok {
|
||||
if ok, _ := st.AttachRefusalLine("10.0.0.1", "l2app", "billing@example.com", now, first); ok {
|
||||
t.Fatal("a line already on a row took another")
|
||||
}
|
||||
if ok, _ := st.AttachRefusalLine("10.0.0.3", "billing@example.com", now, "a third"); ok {
|
||||
if ok, _ := st.AttachRefusalLine("10.0.0.3", "l2app", "billing@example.com", now, "a third"); ok {
|
||||
t.Fatal("a line of another client took a row")
|
||||
}
|
||||
if ok, _ := st.AttachRefusalLine("10.0.0.2", "billing@example.com", now.Add(-time.Hour), "an hour off"); ok {
|
||||
if ok, _ := st.AttachRefusalLine("10.0.0.2", "other", "billing@example.com", now.Add(-time.Hour), "an hour off"); ok {
|
||||
t.Fatal("a line an hour off took a row")
|
||||
}
|
||||
lines := map[string]string{}
|
||||
|
||||
+48
-17
@@ -162,14 +162,14 @@ func (s *Store) UpdateStatus(queueID, recipient, status string) (int64, error) {
|
||||
|
||||
// CloseUnreported is the reconcile sweep's close of one row, by its id:
|
||||
// "bounced", marked reason "reconcile" so it is known who decided it
|
||||
// (architecture.md § Log tailer). Only a row still "queued" is closed - a
|
||||
// result the log wrote an instant earlier stands (audit 2026-10-12, H3). It
|
||||
// returns the number of rows closed, 0 or 1.
|
||||
// (architecture.md § Log tailer). Only a row still open - "queued" or
|
||||
// "deferred" - is closed; a final result the log wrote an instant earlier
|
||||
// stands (audit 2026-10-12, H3). It returns the number of rows closed, 0 or 1.
|
||||
func (s *Store) CloseUnreported(id int64) (int64, error) {
|
||||
now := time.Now().UTC().Format(time.RFC3339)
|
||||
res, err := s.db.Exec(
|
||||
`UPDATE send_log SET status = ?, reason = ?, updated_at = ? WHERE id = ? AND status = ?`,
|
||||
StatusBounced, ReasonReconcile, now, id, StatusQueued,
|
||||
`UPDATE send_log SET status = ?, reason = ?, updated_at = ? WHERE id = ? AND status IN (?, ?)`,
|
||||
StatusBounced, ReasonReconcile, now, id, StatusQueued, StatusDeferred,
|
||||
)
|
||||
if err != nil {
|
||||
return 0, fmt.Errorf("close unreported send_log row: %w", err)
|
||||
@@ -178,6 +178,30 @@ func (s *Store) CloseUnreported(id int64) (int64, error) {
|
||||
return n, nil
|
||||
}
|
||||
|
||||
// ExpireMessage closes the rows of a message Postfix gave up on at the end of
|
||||
// its queue lifetime: each recipient's newest row with that queue id, if it
|
||||
// is still open ("queued" or "deferred"), becomes "bounced" - Postfix returns
|
||||
// the message to its sender. Postfix 3.7.11, src/qmgr/qmgr_active.c,
|
||||
// qmgr_active_done_25_generic(), logs expiry once per message, "<id>:
|
||||
// from=<..>, status=expired, returned to sender", with no line per
|
||||
// recipient: the recipients' last lines say "deferred" (assumptions A-8). It
|
||||
// returns the number of rows closed.
|
||||
func (s *Store) ExpireMessage(queueID string) (int64, error) {
|
||||
now := time.Now().UTC().Format(time.RFC3339)
|
||||
res, err := s.db.Exec(
|
||||
`UPDATE send_log SET status = ?, updated_at = ?
|
||||
WHERE status IN (?, ?) AND id IN (
|
||||
SELECT MAX(id) FROM send_log WHERE queue_id = ? AND status <> 'rejected'
|
||||
GROUP BY to_addr COLLATE NOCASE)`,
|
||||
StatusBounced, now, StatusQueued, StatusDeferred, queueID,
|
||||
)
|
||||
if err != nil {
|
||||
return 0, fmt.Errorf("expire send_log rows of %s: %w", queueID, err)
|
||||
}
|
||||
n, _ := res.RowsAffected()
|
||||
return n, nil
|
||||
}
|
||||
|
||||
// QueuedDelivery is a send-log row still waiting for a delivery result,
|
||||
// reduced to what the log-tailer's reconcile sweep needs to look it up in the
|
||||
// Postfix queue and, failing that, to close it (architecture.md § Log tailer).
|
||||
@@ -187,22 +211,25 @@ type QueuedDelivery struct {
|
||||
To string
|
||||
}
|
||||
|
||||
// ListQueuedOlderThan returns the rows still marked "queued" that were accepted
|
||||
// before cutoff — old enough that Postfix should long since have reported a
|
||||
// result for them. Rows without a queue-id are skipped: the milter refused
|
||||
// those before Postfix ever saw the message, so the queue has nothing to say
|
||||
// about them.
|
||||
// ListOpenOlderThan returns the rows still open - "queued", or "deferred"
|
||||
// and waiting for the next attempt - that were accepted before cutoff, old
|
||||
// enough that Postfix should long since have reported a result for them or
|
||||
// still hold the message. Rows without a queue-id are skipped: the milter
|
||||
// refused those before Postfix ever saw the message, so the queue has
|
||||
// nothing to say about them. A deferred row is among them because Postfix
|
||||
// can drop a deferred message without a line per recipient: at expiry (one
|
||||
// line per message, ExpireMessage) and by postsuper -d (only "removed").
|
||||
//
|
||||
// created_at is stored as RFC3339 UTC, so a lexical comparison against the same
|
||||
// format is chronologically correct. SQLite 3.53.4 compares TEXT with the
|
||||
// BINARY collation, memcmp() (https://sqlite.org/datatype3.html § 7), and
|
||||
// time.RFC3339 of a UTC time is fixed-width, YYYY-MM-DDTHH:MM:SSZ.
|
||||
func (s *Store) ListQueuedOlderThan(cutoff time.Time) ([]QueuedDelivery, error) {
|
||||
func (s *Store) ListOpenOlderThan(cutoff time.Time) ([]QueuedDelivery, error) {
|
||||
rows, err := s.db.Query(
|
||||
`SELECT id, queue_id, to_addr FROM send_log
|
||||
WHERE status = ? AND queue_id <> '' AND created_at < ?
|
||||
WHERE status IN (?, ?) AND queue_id <> '' AND created_at < ?
|
||||
ORDER BY id`,
|
||||
StatusQueued, cutoff.UTC().Format(time.RFC3339),
|
||||
StatusQueued, StatusDeferred, cutoff.UTC().Format(time.RFC3339),
|
||||
)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("list queued send_log rows: %w", err)
|
||||
@@ -253,8 +280,10 @@ type SendLogRow struct {
|
||||
// AttachRefusalLine puts Postfix's line about a refusal at MAIL FROM on the
|
||||
// row the journal milter wrote for it (audit 2026-10-12, stage 2b). Such a
|
||||
// refusal has no queue id, and the line names no login, so the row is found
|
||||
// by what the line says: a refused row of that client and sender without a
|
||||
// line yet, written within two minutes of the line's time; the nearest in
|
||||
// by what the line says: a refused row of that client, login and sender
|
||||
// without a line yet - the login is smtpd's sasl_username= on the line, so
|
||||
// two applications behind one address sending as one sender are told apart
|
||||
// (assumptions A-21) - written within two minutes of the line's time; the nearest in
|
||||
// time, the oldest of equals, when there are several - lines are read in the
|
||||
// order the rows were written, so two refusals of one second take one line
|
||||
// each in turn (review of stage 2b). A line already on a row - read again
|
||||
@@ -265,12 +294,13 @@ type SendLogRow struct {
|
||||
// reads YYYY-MM-DDTHH:MM:SSZ, the T and the Z included (lang_datefunc.html
|
||||
// § 2); NOCASE folds ASCII only (datatype3.html § 7.1); ?1 is bound once and
|
||||
// used twice (lang_expr.html § 4).
|
||||
func (s *Store) AttachRefusalLine(clientIP, from string, at time.Time, line string) (bool, error) {
|
||||
func (s *Store) AttachRefusalLine(clientIP, login, from string, at time.Time, line string) (bool, error) {
|
||||
res, err := s.db.Exec(
|
||||
`UPDATE send_log SET refusal_line = ?1 WHERE id = (
|
||||
SELECT id FROM send_log
|
||||
WHERE status = ?2 AND queue_id = '' AND refusal_line = ''
|
||||
AND reason IN ('', ?3, ?4) AND from_addr = ?5 COLLATE NOCASE AND client_ip = ?6
|
||||
AND app_login = ?10 COLLATE NOCASE
|
||||
AND created_at BETWEEN ?7 AND ?8
|
||||
ORDER BY ABS(julianday(created_at) - julianday(?9)), id
|
||||
LIMIT 1)
|
||||
@@ -279,6 +309,7 @@ func (s *Store) AttachRefusalLine(clientIP, from string, at time.Time, line stri
|
||||
at.Add(-refusalLineWindow).UTC().Format(time.RFC3339),
|
||||
at.Add(refusalLineWindow).UTC().Format(time.RFC3339),
|
||||
at.UTC().Format(time.RFC3339),
|
||||
login,
|
||||
)
|
||||
if err != nil {
|
||||
return false, fmt.Errorf("attach refusal line: %w", err)
|
||||
@@ -452,7 +483,7 @@ func sendLogWhere(f SendLogFilter) (string, []any) {
|
||||
// implementing the configurable retention window (architecture.md §
|
||||
// Persistence, SEND_LOG_RETENTION_DAYS). It returns the number of rows pruned.
|
||||
// created_at is stored as RFC3339 UTC, so a lexical comparison against the
|
||||
// same format is chronologically correct (see ListQueuedOlderThan).
|
||||
// same format is chronologically correct (see ListOpenOlderThan).
|
||||
func (s *Store) DeleteSendLogBefore(cutoff time.Time) (int64, error) {
|
||||
res, err := s.db.Exec(
|
||||
`DELETE FROM send_log WHERE created_at < ?`,
|
||||
|
||||
@@ -142,6 +142,72 @@ func TestCloseUnreportedClosesOnlyQueuedRows(t *testing.T) {
|
||||
}
|
||||
}
|
||||
|
||||
// Postfix's expiry line closes the message's open rows - each recipient's
|
||||
// newest, queued or deferred - and leaves a final result, a refusal and an
|
||||
// older message that had the same queue id alone (assumptions A-8).
|
||||
func TestExpireMessageClosesOnlyOpenRows(t *testing.T) {
|
||||
st := openTestStore(t)
|
||||
for _, e := range []SendLogEntry{
|
||||
{QueueID: "OLDQ", To: "a@example.net"}, // an earlier message, same id
|
||||
{QueueID: "Q1", To: "a@example.net"},
|
||||
{QueueID: "Q1", To: "b@example.net"},
|
||||
{QueueID: "Q1", To: "c@example.net"},
|
||||
} {
|
||||
if err := st.InsertQueued(e); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
}
|
||||
if _, err := st.db.Exec(`UPDATE send_log SET queue_id = 'Q1' WHERE queue_id = 'OLDQ'`); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if _, err := st.UpdateStatus("Q1", "a@example.net", StatusDeferred); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if _, err := st.UpdateStatus("Q1", "c@example.net", StatusSent); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if n, err := st.ExpireMessage("Q1"); err != nil || n != 2 {
|
||||
t.Fatalf("ExpireMessage = %d, %v; want 2 (a deferred, b queued)", n, err)
|
||||
}
|
||||
rows, err := st.db.Query(`SELECT to_addr, status FROM send_log ORDER BY id`)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
defer rows.Close()
|
||||
var got []string
|
||||
for rows.Next() {
|
||||
var to, status string
|
||||
if err := rows.Scan(&to, &status); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
got = append(got, to+" "+status)
|
||||
}
|
||||
want := []string{
|
||||
"a@example.net " + StatusQueued, // the earlier message's row
|
||||
"a@example.net " + StatusBounced,
|
||||
"b@example.net " + StatusBounced,
|
||||
"c@example.net " + StatusSent,
|
||||
}
|
||||
if strings.Join(got, "; ") != strings.Join(want, "; ") {
|
||||
t.Fatalf("rows = %v, want %v", got, want)
|
||||
}
|
||||
}
|
||||
|
||||
// The sweep closes a deferred row as it closes a queued one: Postfix can drop
|
||||
// a deferred message without a line per recipient.
|
||||
func TestCloseUnreportedClosesADeferredRow(t *testing.T) {
|
||||
st := openTestStore(t)
|
||||
if err := st.InsertQueued(SendLogEntry{QueueID: "Q1", To: "a@example.net"}); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if _, err := st.UpdateStatus("Q1", "a@example.net", StatusDeferred); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if n, err := st.CloseUnreported(rowID(t, st, "Q1")); err != nil || n != 1 {
|
||||
t.Fatalf("CloseUnreported of a deferred row = %d, %v; want 1", n, err)
|
||||
}
|
||||
}
|
||||
|
||||
// A delivery line about a row the sweep closed proves the sweep guessed what
|
||||
// the log could have said: the log's status wins, the row is marked
|
||||
// reconcile-contradicted, and the day counts one contradiction - once,
|
||||
@@ -205,7 +271,7 @@ func TestUpdateStatusRewritesOnlyTheNewestRow(t *testing.T) {
|
||||
// reported on them by now. A message accepted moments ago is simply in flight,
|
||||
// and one the milter refused never reached the queue at all, so neither is the
|
||||
// sweep's business.
|
||||
func TestListQueuedOlderThan(t *testing.T) {
|
||||
func TestListOpenOlderThan(t *testing.T) {
|
||||
st := openTestStore(t)
|
||||
|
||||
for _, e := range []SendLogEntry{
|
||||
@@ -232,9 +298,9 @@ func TestListQueuedOlderThan(t *testing.T) {
|
||||
backdate(t, st, "OLD1", cutoff.Add(-time.Hour))
|
||||
backdate(t, st, "DONE1", cutoff.Add(-time.Hour))
|
||||
|
||||
got, err := st.ListQueuedOlderThan(cutoff)
|
||||
got, err := st.ListOpenOlderThan(cutoff)
|
||||
if err != nil {
|
||||
t.Fatalf("ListQueuedOlderThan: %v", err)
|
||||
t.Fatalf("ListOpenOlderThan: %v", err)
|
||||
}
|
||||
if len(got) != 1 || got[0] != (QueuedDelivery{ID: got[0].ID, QueueID: "OLD1", To: "stale@example.net"}) {
|
||||
t.Fatalf("got %+v, want only the stale queued row", got)
|
||||
|
||||
@@ -103,7 +103,7 @@ func (s *Store) DeleteUserSessions(userID int64) error {
|
||||
// forever. It piggybacks on session creation rather than running as its own
|
||||
// background loop.
|
||||
// expires_at is RFC3339 UTC text, so < compares moments (see
|
||||
// ListQueuedOlderThan).
|
||||
// ListOpenOlderThan).
|
||||
func (s *Store) DeleteExpiredSessions(now time.Time) (int64, error) {
|
||||
res, err := s.db.Exec(`DELETE FROM sessions WHERE expires_at < ?`, now.UTC().Format(time.RFC3339))
|
||||
if err != nil {
|
||||
|
||||
@@ -167,7 +167,7 @@ func TestARefusedMessageShowsPostfixsLine(t *testing.T) {
|
||||
}
|
||||
if subject == "with its line" {
|
||||
line := time.Now().UTC().Format("2006-01-02T15:04:05Z") + " mail postfix/smtpd[2131]: NOQUEUE: milter-reject: MAIL from unknown[198.51.100.7]: 451 4.7.1 Service unavailable - try again later; from=<alerts@example.org> proto=ESMTP helo=<app>"
|
||||
if ok, err := st.AttachRefusalLine("198.51.100.7", "alerts@example.org", time.Now(), line); err != nil || !ok {
|
||||
if ok, err := st.AttachRefusalLine("198.51.100.7", "alerts", "alerts@example.org", time.Now(), line); err != nil || !ok {
|
||||
t.Fatalf("attach = %v, %v", ok, err)
|
||||
}
|
||||
}
|
||||
|
||||
@@ -262,7 +262,10 @@ func NewOutMessage(m Meta, in MessageInput) *OutMessage {
|
||||
history.Help = topicLink(HelpSenderCheck, "What an application may write in From:")
|
||||
}
|
||||
if in.Recovered {
|
||||
facts = append(facts, Fact{Label: "Written", Value: Rich("from ", Code("mail.log"), " after a restart: the panel stopped before it wrote the refusal")})
|
||||
// cleanup's line names the message's last recipient only (Postfix
|
||||
// 3.7.11, src/cleanup/cleanup_milter.c, cleanup_milter_apply(),
|
||||
// " to=<%s>" of state->recip; assumptions A-15).
|
||||
facts = append(facts, Fact{Label: "Written", Value: Rich("from ", Code("mail.log"), " after a restart: the panel stopped before it wrote the refusal. Postfix's line names the last recipient only")})
|
||||
}
|
||||
if in.QueueID != "" {
|
||||
facts = append(facts, Fact{Label: "Queue id", Value: Rich(Mono(in.QueueID), " - given, the message was not queued")})
|
||||
|
||||
Reference in New Issue
Block a user