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switch to slog.Logger for logging, for easier reuse of packages by external software

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we don't want external software to include internal details like mlog.
slog.Logger is/will be the standard.

we still have mlog for its helper functions, and its handler that logs in
concise logfmt used by mox.

packages that are not meant for reuse still pass around mlog.Log for
convenience.

we use golang.org/x/exp/slog because we also support the previous Go toolchain
version. with the next Go release, we'll switch to the builtin slog.
This commit is contained in:
Mechiel Lukkien
2023-12-05 13:35:58 +01:00
parent 56b2a9d980
commit 5b20cba50a
150 changed files with 5176 additions and 1898 deletions
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8
dsn/dsn.go
View File

@ -16,6 +16,8 @@ import (
"strings"
"time"
"golang.org/x/exp/slog"
"github.com/mjl-/mox/dkim"
"github.com/mjl-/mox/dns"
"github.com/mjl-/mox/message"
@ -135,7 +137,7 @@ type Recipient struct {
// DSN.
//
// DKIM signatures are added if DKIM signing is configured for the "from" domain.
func (m *Message) Compose(log *mlog.Log, smtputf8 bool) ([]byte, error) {
func (m *Message) Compose(log mlog.Log, smtputf8 bool) ([]byte, error) {
// ../rfc/3462:119
// ../rfc/3464:377
// We'll make a multipart/report with 2 or 3 parts:
@ -381,9 +383,9 @@ func (m *Message) Compose(log *mlog.Log, smtputf8 bool) ([]byte, error) {
continue
}
dkimHeaders, err := dkim.Sign(context.Background(), m.From.Localpart, fd, confDom.DKIM, smtputf8, bytes.NewReader(data))
dkimHeaders, err := dkim.Sign(context.Background(), log.Logger, m.From.Localpart, fd, confDom.DKIM, smtputf8, bytes.NewReader(data))
if err != nil {
log.Errorx("dsn: dkim sign for domain, returning unsigned dsn", err, mlog.Field("domain", fd))
log.Errorx("dsn: dkim sign for domain, returning unsigned dsn", err, slog.Any("domain", fd))
} else {
data = append([]byte(dkimHeaders), data...)
}

8
dsn/dsn_test.go
View File

@ -20,7 +20,7 @@ import (
"github.com/mjl-/mox/smtp"
)
var xlog = mlog.New("dsn")
var pkglog = mlog.New("dsn", nil)
func xparseDomain(s string) dns.Domain {
d, err := dns.ParseDomain(s)
@ -36,7 +36,7 @@ func xparseIPDomain(s string) dns.IPDomain {
func tparseMessage(t *testing.T, data []byte, nparts int) (*Message, *message.Part) {
t.Helper()
m, p, err := Parse(xlog, bytes.NewReader(data))
m, p, err := Parse(pkglog.Logger, bytes.NewReader(data))
if err != nil {
t.Fatalf("parsing dsn: %v", err)
}
@ -75,7 +75,7 @@ func tcompareReader(t *testing.T, r io.Reader, exp []byte) {
}
func TestDSN(t *testing.T) {
log := mlog.New("dsn")
log := mlog.New("dsn", nil)
now := time.Now()
@ -143,7 +143,7 @@ func TestDSN(t *testing.T) {
"testsel._domainkey.mox.example.": {"v=DKIM1;h=sha256;t=s;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3ZId3ys70VFspp/VMFaxMOrNjHNPg04NOE1iShih16b3Ex7hHBOgC1UvTGSmrMlbCB1OxTXkvf6jW6S4oYRnZYVNygH6zKUwYYhaSaGIg1xA/fDn+IgcTRyLoXizMUgUgpTGyxhNrwIIWv+i7jjbs3TKpP3NU4owQ/rxowmSNqg+fHIF1likSvXvljYS" + "jaFXXnWfYibW7TdDCFFpN4sB5o13+as0u4vLw6MvOi59B1tLype1LcHpi1b9PfxNtznTTdet3kL0paxIcWtKHT0LDPUos8YYmiPa5nGbUqlC7d+4YT2jQPvwGxCws1oo2Tw6nj1UaihneYGAyvEky49FBwIDAQAB"},
},
}
results, err := dkim.Verify(context.Background(), resolver, false, func(*dkim.Sig) error { return nil }, bytes.NewReader(msgbuf), false)
results, err := dkim.Verify(context.Background(), log.Logger, resolver, false, func(*dkim.Sig) error { return nil }, bytes.NewReader(msgbuf), false)
if err != nil {
t.Fatalf("dkim verify: %v", err)
}

10
dsn/parse.go
View File

@ -9,6 +9,8 @@ import (
"strings"
"time"
"golang.org/x/exp/slog"
"github.com/mjl-/mox/dns"
"github.com/mjl-/mox/message"
"github.com/mjl-/mox/mlog"
@ -23,17 +25,19 @@ import (
// The first return value is the machine-parsed DSN message. The second value is
// the entire MIME multipart message. Use its Parts field to access the
// human-readable text and optional original message/headers.
func Parse(log *mlog.Log, r io.ReaderAt) (*Message, *message.Part, error) {
func Parse(elog *slog.Logger, r io.ReaderAt) (*Message, *message.Part, error) {
log := mlog.New("dsn", elog)
// DSNs can mix and match subtypes with and without utf-8. ../rfc/6533:441
part, err := message.Parse(log, false, r)
part, err := message.Parse(log.Logger, false, r)
if err != nil {
return nil, nil, fmt.Errorf("parsing message: %v", err)
}
if part.MediaType != "MULTIPART" || part.MediaSubType != "REPORT" {
return nil, nil, fmt.Errorf(`message has content-type %q, must have "message/report"`, strings.ToLower(part.MediaType+"/"+part.MediaSubType))
}
err = part.Walk(log, nil)
err = part.Walk(log.Logger, nil)
if err != nil {
return nil, nil, fmt.Errorf("parsing message parts: %v", err)
}