mirror of
https://github.com/mjl-/mox.git
synced 2024-12-25 16:03:48 +03:00
add parser of Authentication-Results, and fix bugs it found in our generated headers
we weren't always quoting the values, like dkim's header.b=abc/def. the "/" requires that the value be quoted.
This commit is contained in:
Mechiel Lukkien
parent
b91480b5af
commit
2c9cb5b847
4 changed files with 674 additions and 16 deletions
|
|
@ -2,6 +2,9 @@ package message
|
|||
|
||||
import (
|
||||
"fmt"
|
||||
"strings"
|
||||
|
||||
"github.com/mjl-/mox/dns"
|
||||
)
|
||||
|
||||
// ../rfc/8601:577
|
||||
|
|
@ -9,8 +12,11 @@ import (
|
|||
// Authentication-Results header, see RFC 8601.
|
||||
type AuthResults struct {
|
||||
Hostname string
|
||||
Comment string // If not empty, header comment without "()", added after Hostname.
|
||||
Methods []AuthMethod
|
||||
// Optional version of Authentication-Results header, assumed "1" when absent,
|
||||
// which is common.
|
||||
Version string
|
||||
Comment string // If not empty, header comment without "()", added after Hostname.
|
||||
Methods []AuthMethod // Can be empty, in case of "none".
|
||||
}
|
||||
|
||||
// ../rfc/8601:598
|
||||
|
|
@ -21,6 +27,7 @@ type AuthResults struct {
|
|||
type AuthMethod struct {
|
||||
// E.g. "dkim", "spf", "iprev", "auth".
|
||||
Method string
|
||||
Version string // For optional method version. "1" is implied when missing, which is common.
|
||||
Result string // Each method has a set of known values, e.g. "pass", "temperror", etc.
|
||||
Comment string // Optional, message header comment.
|
||||
Reason string // Optional.
|
||||
|
|
@ -64,7 +71,7 @@ func (h AuthResults) Header() string {
|
|||
}
|
||||
|
||||
w := &HeaderWriter{}
|
||||
w.Add("", "Authentication-Results:"+optComment(h.Comment)+" "+value(h.Hostname)+";")
|
||||
w.Add("", "Authentication-Results:"+optComment(h.Comment)+" "+value(h.Hostname, false)+";")
|
||||
for i, m := range h.Methods {
|
||||
w.Newline()
|
||||
|
||||
|
|
@ -78,13 +85,10 @@ func (h AuthResults) Header() string {
|
|||
addf("(%s)", m.Comment)
|
||||
}
|
||||
if m.Reason != "" {
|
||||
addf("reason=%s", value(m.Reason))
|
||||
addf("reason=%s", value(m.Reason, false))
|
||||
}
|
||||
for _, p := range m.Props {
|
||||
v := p.Value
|
||||
if !p.IsAddrLike {
|
||||
v = value(v)
|
||||
}
|
||||
v := value(p.Value, p.IsAddrLike)
|
||||
addf("%s.%s=%s%s", p.Type, p.Property, v, optComment(p.Comment))
|
||||
}
|
||||
for j, t := range tokens {
|
||||
|
|
@ -101,11 +105,12 @@ func (h AuthResults) Header() string {
|
|||
return w.String()
|
||||
}
|
||||
|
||||
func value(s string) string {
|
||||
func value(s string, isAddrLike bool) string {
|
||||
quote := s == ""
|
||||
for _, c := range s {
|
||||
// utf-8 does not have to be quoted. ../rfc/6532:242
|
||||
if c == '"' || c == '\\' || c <= ' ' || c == 0x7f {
|
||||
// Characters outside of tokens do. ../rfc/2045:661
|
||||
if c <= ' ' || c == 0x7f || (c == '@' && !isAddrLike) || strings.ContainsRune(`()<>,;:\\"/[]?= `, c) {
|
||||
quote = true
|
||||
break
|
||||
}
|
||||
|
|
@ -123,3 +128,351 @@ func value(s string) string {
|
|||
r += `"`
|
||||
return r
|
||||
}
|
||||
|
||||
// ParseAuthResults parses a Authentication-Results header value.
|
||||
//
|
||||
// Comments are not populated in the returned AuthResults.
|
||||
// Both crlf and lf line-endings are accepted. The input string must end with
|
||||
// either crlf or lf.
|
||||
func ParseAuthResults(s string) (ar AuthResults, err error) {
|
||||
// ../rfc/8601:577
|
||||
lower := make([]byte, len(s))
|
||||
for i, c := range []byte(s) {
|
||||
if c >= 'A' && c <= 'Z' {
|
||||
c += 'a' - 'A'
|
||||
}
|
||||
lower[i] = c
|
||||
}
|
||||
p := &parser{s: s, lower: string(lower)}
|
||||
defer p.recover(&err)
|
||||
|
||||
p.cfws()
|
||||
ar.Hostname = p.xvalue()
|
||||
p.cfws()
|
||||
ar.Version = p.digits()
|
||||
p.cfws()
|
||||
for {
|
||||
p.xtake(";")
|
||||
p.cfws()
|
||||
// Yahoo has ";" at the end of the header value, incorrect.
|
||||
if !Pedantic && p.end() {
|
||||
break
|
||||
}
|
||||
method := p.xkeyword(false)
|
||||
p.cfws()
|
||||
if method == "none" {
|
||||
if len(ar.Methods) == 0 {
|
||||
p.xerrorf("missing results")
|
||||
}
|
||||
if !p.end() {
|
||||
p.xerrorf(`data after "none" result`)
|
||||
}
|
||||
return
|
||||
}
|
||||
ar.Methods = append(ar.Methods, p.xresinfo(method))
|
||||
p.cfws()
|
||||
if p.end() {
|
||||
break
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
type parser struct {
|
||||
s string
|
||||
lower string // Like s, but with ascii characters lower-cased (utf-8 offsets preserved).
|
||||
o int
|
||||
}
|
||||
|
||||
type parseError struct{ err error }
|
||||
|
||||
func (p *parser) recover(err *error) {
|
||||
x := recover()
|
||||
if x == nil {
|
||||
return
|
||||
}
|
||||
perr, ok := x.(parseError)
|
||||
if ok {
|
||||
*err = perr.err
|
||||
return
|
||||
}
|
||||
panic(x)
|
||||
}
|
||||
|
||||
func (p *parser) xerrorf(format string, args ...any) {
|
||||
panic(parseError{fmt.Errorf(format, args...)})
|
||||
}
|
||||
|
||||
func (p *parser) end() bool {
|
||||
return p.s[p.o:] == "\r\n" || p.s[p.o:] == "\n"
|
||||
}
|
||||
|
||||
// ../rfc/5322:599
|
||||
func (p *parser) cfws() {
|
||||
p.fws()
|
||||
for p.prefix("(") {
|
||||
p.xcomment()
|
||||
}
|
||||
p.fws()
|
||||
}
|
||||
|
||||
func (p *parser) fws() {
|
||||
for p.take(" ") || p.take("\t") {
|
||||
}
|
||||
opts := []string{"\n ", "\n\t", "\r\n ", "\r\n\t"}
|
||||
for _, o := range opts {
|
||||
if p.take(o) {
|
||||
break
|
||||
}
|
||||
}
|
||||
for p.take(" ") || p.take("\t") {
|
||||
}
|
||||
}
|
||||
|
||||
func (p *parser) xcomment() {
|
||||
p.xtake("(")
|
||||
p.fws()
|
||||
for !p.take(")") {
|
||||
if p.empty() {
|
||||
p.xerrorf("unexpected end in comment")
|
||||
}
|
||||
if p.prefix("(") {
|
||||
p.xcomment()
|
||||
p.fws()
|
||||
continue
|
||||
}
|
||||
p.take(`\`)
|
||||
if c := p.s[p.o]; c > ' ' && c < 0x7f {
|
||||
p.o++
|
||||
} else {
|
||||
p.xerrorf("bad character %c in comment", c)
|
||||
}
|
||||
p.fws()
|
||||
}
|
||||
}
|
||||
|
||||
func (p *parser) prefix(s string) bool {
|
||||
return strings.HasPrefix(p.lower[p.o:], s)
|
||||
}
|
||||
|
||||
func (p *parser) xvalue() string {
|
||||
if p.prefix(`"`) {
|
||||
return p.xquotedString()
|
||||
}
|
||||
return p.xtakefn1("value token", func(c rune, i int) bool {
|
||||
// ../rfc/2045:661
|
||||
// todo: token cannot contain utf-8? not updated in ../rfc/6532. however, we also use it for the localpart & domain parsing, so we'll allow it.
|
||||
return c > ' ' && !strings.ContainsRune(`()<>@,;:\\"/[]?= `, c)
|
||||
})
|
||||
}
|
||||
|
||||
func (p *parser) xchar() rune {
|
||||
// We are careful to track invalid utf-8 properly.
|
||||
if p.empty() {
|
||||
p.xerrorf("need another character")
|
||||
}
|
||||
var r rune
|
||||
var o int
|
||||
for i, c := range p.s[p.o:] {
|
||||
if i > 0 {
|
||||
o = i
|
||||
break
|
||||
}
|
||||
r = c
|
||||
}
|
||||
if o == 0 {
|
||||
p.o = len(p.s)
|
||||
} else {
|
||||
p.o += o
|
||||
}
|
||||
return r
|
||||
}
|
||||
|
||||
func (p *parser) xquotedString() string {
|
||||
p.xtake(`"`)
|
||||
var s string
|
||||
var esc bool
|
||||
for {
|
||||
c := p.xchar()
|
||||
if esc {
|
||||
if c >= ' ' && c < 0x7f {
|
||||
s += string(c)
|
||||
esc = false
|
||||
continue
|
||||
}
|
||||
p.xerrorf("bad escaped char %c in quoted string", c)
|
||||
}
|
||||
if c == '\\' {
|
||||
esc = true
|
||||
continue
|
||||
}
|
||||
if c == '"' {
|
||||
return s
|
||||
}
|
||||
if c >= ' ' && c != '\\' && c != '"' {
|
||||
s += string(c)
|
||||
continue
|
||||
}
|
||||
p.xerrorf("invalid quoted string, invalid character %c", c)
|
||||
}
|
||||
}
|
||||
|
||||
func (p *parser) digits() string {
|
||||
o := p.o
|
||||
for o < len(p.s) && p.s[o] >= '0' && p.s[o] <= '9' {
|
||||
o++
|
||||
}
|
||||
p.o = o
|
||||
return p.s[o:p.o]
|
||||
}
|
||||
|
||||
func (p *parser) xdigits() string {
|
||||
s := p.digits()
|
||||
if s == "" {
|
||||
p.xerrorf("expected digits, remaining %q", p.s[p.o:])
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
func (p *parser) xtake(s string) {
|
||||
if !p.prefix(s) {
|
||||
p.xerrorf("expected %q, remaining %q", s, p.s[p.o:])
|
||||
}
|
||||
p.o += len(s)
|
||||
}
|
||||
|
||||
func (p *parser) empty() bool {
|
||||
return p.o >= len(p.s)
|
||||
}
|
||||
|
||||
func (p *parser) take(s string) bool {
|
||||
if p.prefix(s) {
|
||||
p.o += len(s)
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func (p *parser) xtakefn1(what string, fn func(c rune, i int) bool) string {
|
||||
if p.empty() {
|
||||
p.xerrorf("need at least one char for %s", what)
|
||||
}
|
||||
for i, c := range p.s[p.o:] {
|
||||
if !fn(c, i) {
|
||||
if i == 0 {
|
||||
p.xerrorf("expected at least one char for %s, remaining %q", what, p.s[p.o:])
|
||||
}
|
||||
s := p.s[p.o : p.o+i]
|
||||
p.o += i
|
||||
return s
|
||||
}
|
||||
}
|
||||
s := p.s[p.o:]
|
||||
p.o = len(p.s)
|
||||
return s
|
||||
}
|
||||
|
||||
// ../rfc/5321:2287
|
||||
func (p *parser) xkeyword(isResult bool) string {
|
||||
s := strings.ToLower(p.xtakefn1("keyword", func(c rune, i int) bool {
|
||||
// Yahoo sends results like "dkim=perm_fail".
|
||||
return c >= 'a' && c <= 'z' || c >= '0' && c <= '9' || c == '-' || isResult && !Pedantic && c == '_'
|
||||
}))
|
||||
if s == "-" {
|
||||
p.xerrorf("missing keyword")
|
||||
} else if strings.HasSuffix(s, "-") {
|
||||
p.o--
|
||||
s = s[:len(s)-1]
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
func (p *parser) xmethodspec(methodKeyword string) (string, string, string) {
|
||||
p.cfws()
|
||||
var methodDigits string
|
||||
if p.take("/") {
|
||||
methodDigits = p.xdigits()
|
||||
p.cfws()
|
||||
}
|
||||
p.xtake("=")
|
||||
p.cfws()
|
||||
result := p.xkeyword(true)
|
||||
return methodKeyword, methodDigits, result
|
||||
}
|
||||
|
||||
func (p *parser) xpropspec() (ap AuthProp) {
|
||||
ap.Type = p.xkeyword(false)
|
||||
p.cfws()
|
||||
p.xtake(".")
|
||||
p.cfws()
|
||||
if p.take("mailfrom") {
|
||||
ap.Property = "mailfrom"
|
||||
} else if p.take("rcptto") {
|
||||
ap.Property = "rcptto"
|
||||
} else {
|
||||
ap.Property = p.xkeyword(false)
|
||||
}
|
||||
p.cfws()
|
||||
p.xtake("=")
|
||||
ap.IsAddrLike, ap.Value = p.xpvalue()
|
||||
return
|
||||
}
|
||||
|
||||
// method keyword has been parsed, method-version not yet.
|
||||
func (p *parser) xresinfo(methodKeyword string) (am AuthMethod) {
|
||||
p.cfws()
|
||||
am.Method, am.Version, am.Result = p.xmethodspec(methodKeyword)
|
||||
p.cfws()
|
||||
if p.take("reason") {
|
||||
p.cfws()
|
||||
am.Reason = p.xvalue()
|
||||
}
|
||||
p.cfws()
|
||||
for !p.prefix(";") && !p.end() {
|
||||
am.Props = append(am.Props, p.xpropspec())
|
||||
p.cfws()
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// todo: could keep track whether this is a localpart.
|
||||
func (p *parser) xpvalue() (bool, string) {
|
||||
p.cfws()
|
||||
if p.take("@") {
|
||||
// Bare domain.
|
||||
dom, _ := p.xdomain()
|
||||
return true, "@" + dom
|
||||
}
|
||||
s := p.xvalue()
|
||||
if p.take("@") {
|
||||
dom, _ := p.xdomain()
|
||||
s += "@" + dom
|
||||
return true, s
|
||||
}
|
||||
return false, s
|
||||
}
|
||||
|
||||
// ../rfc/5321:2291
|
||||
func (p *parser) xdomain() (string, dns.Domain) {
|
||||
s := p.xsubdomain()
|
||||
for p.take(".") {
|
||||
s += "." + p.xsubdomain()
|
||||
}
|
||||
d, err := dns.ParseDomain(s)
|
||||
if err != nil {
|
||||
p.xerrorf("parsing domain name %q: %s", s, err)
|
||||
}
|
||||
if len(s) > 255 {
|
||||
// ../rfc/5321:3491
|
||||
p.xerrorf("domain longer than 255 octets")
|
||||
}
|
||||
return s, d
|
||||
}
|
||||
|
||||
// ../rfc/5321:2303
|
||||
// ../rfc/5321:2303 ../rfc/6531:411
|
||||
func (p *parser) xsubdomain() string {
|
||||
return p.xtakefn1("subdomain", func(c rune, i int) bool {
|
||||
return c >= '0' && c <= '9' || c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || i > 0 && c == '-' || c > 0x7f
|
||||
})
|
||||
}
|
||||
|
|
|
|||
|
|
@ -6,7 +6,7 @@ import (
|
|||
"github.com/mjl-/mox/dns"
|
||||
)
|
||||
|
||||
func TestAuthResults(t *testing.T) {
|
||||
func TestAuthResultsPack(t *testing.T) {
|
||||
dom, err := dns.ParseDomain("møx.example")
|
||||
if err != nil {
|
||||
t.Fatalf("parsing domain: %v", err)
|
||||
|
|
@ -15,7 +15,7 @@ func TestAuthResults(t *testing.T) {
|
|||
Hostname: dom.XName(true),
|
||||
Comment: dom.ASCIIExtra(true),
|
||||
Methods: []AuthMethod{
|
||||
{"dkim", "pass", "", "", []AuthProp{{"header", "d", dom.XName(true), true, dom.ASCIIExtra(true)}}},
|
||||
{"dkim", "", "pass", "", "", []AuthProp{{"header", "d", dom.XName(true), true, dom.ASCIIExtra(true)}}},
|
||||
},
|
||||
}
|
||||
s := authRes.Header()
|
||||
|
|
@ -24,3 +24,302 @@ func TestAuthResults(t *testing.T) {
|
|||
t.Fatalf("got %q, expected %q", s, exp)
|
||||
}
|
||||
}
|
||||
|
||||
func TestAuthResultsParse(t *testing.T) {
|
||||
ar, err := ParseAuthResults("(xn--mx-lka.example) møx.example;\r\n\tdkim=pass header.d=møx.example (xn--mx-lka.example)\r\n")
|
||||
tcheck(t, err, "parsing auth results header")
|
||||
tcompare(t, ar, AuthResults{
|
||||
Hostname: "møx.example",
|
||||
Methods: []AuthMethod{
|
||||
{
|
||||
Method: "dkim",
|
||||
Result: "pass",
|
||||
Props: []AuthProp{
|
||||
{Type: "header", Property: "d", Value: "møx.example"},
|
||||
},
|
||||
},
|
||||
},
|
||||
})
|
||||
|
||||
const localhost = `localhost;
|
||||
auth=pass smtp.mailfrom=mox+qvpVtG6ZQg-vJmN_beaGyQ@localhost
|
||||
`
|
||||
ar, err = ParseAuthResults(localhost)
|
||||
tcheck(t, err, "parsing auth results header")
|
||||
tcompare(t, ar, AuthResults{
|
||||
Hostname: "localhost",
|
||||
Methods: []AuthMethod{
|
||||
{
|
||||
Method: "auth",
|
||||
Result: "pass",
|
||||
Props: []AuthProp{
|
||||
{Type: "smtp", Property: "mailfrom", IsAddrLike: true, Value: "mox+qvpVtG6ZQg-vJmN_beaGyQ@localhost"},
|
||||
},
|
||||
},
|
||||
},
|
||||
})
|
||||
|
||||
const other = `komijn.test.xmox.nl;
|
||||
iprev=pass (without dnssec) policy.iprev=198.2.145.102;
|
||||
dkim=pass (2048 bit rsa, without dnssec) header.d=mandrillapp.com
|
||||
header.s=mte1 header.a=rsa-sha256 header.b="CfNW8cht1/v3";
|
||||
dkim=pass (2048 bit rsa, without dnssec) header.d=letsencrypt.org
|
||||
header.s=mte1 header.a=rsa-sha256 header.b=F9lCi4OC77su
|
||||
header.i=expiry@letsencrypt.org;
|
||||
spf=pass (without dnssec) smtp.mailfrom=delivery.letsencrypt.org;
|
||||
dmarc=pass (without dnssec) header.from=letsencrypt.org
|
||||
`
|
||||
|
||||
ar, err = ParseAuthResults(other)
|
||||
tcheck(t, err, "parsing auth results header")
|
||||
tcompare(t, ar, AuthResults{
|
||||
Hostname: "komijn.test.xmox.nl",
|
||||
Methods: []AuthMethod{
|
||||
{
|
||||
Method: "iprev",
|
||||
Result: "pass",
|
||||
Props: []AuthProp{
|
||||
{Type: "policy", Property: "iprev", Value: "198.2.145.102"},
|
||||
},
|
||||
},
|
||||
{
|
||||
Method: "dkim",
|
||||
Result: "pass",
|
||||
Props: []AuthProp{
|
||||
{Type: "header", Property: "d", Value: "mandrillapp.com"},
|
||||
{Type: "header", Property: "s", Value: "mte1"},
|
||||
{Type: "header", Property: "a", Value: "rsa-sha256"},
|
||||
{Type: "header", Property: "b", Value: "CfNW8cht1/v3"},
|
||||
},
|
||||
},
|
||||
{
|
||||
Method: "dkim",
|
||||
Result: "pass",
|
||||
Props: []AuthProp{
|
||||
{Type: "header", Property: "d", Value: "letsencrypt.org"},
|
||||
{Type: "header", Property: "s", Value: "mte1"},
|
||||
{Type: "header", Property: "a", Value: "rsa-sha256"},
|
||||
{Type: "header", Property: "b", Value: "F9lCi4OC77su"},
|
||||
{Type: "header", Property: "i", IsAddrLike: true, Value: "expiry@letsencrypt.org"},
|
||||
},
|
||||
},
|
||||
{
|
||||
Method: "spf",
|
||||
Result: "pass",
|
||||
Props: []AuthProp{
|
||||
{Type: "smtp", Property: "mailfrom", Value: "delivery.letsencrypt.org"},
|
||||
},
|
||||
},
|
||||
{
|
||||
Method: "dmarc",
|
||||
Result: "pass",
|
||||
Props: []AuthProp{
|
||||
{Type: "header", Property: "from", Value: "letsencrypt.org"},
|
||||
},
|
||||
},
|
||||
},
|
||||
})
|
||||
|
||||
const google = `mx.google.com;
|
||||
dkim=pass header.i=@test.xmox.nl header.s=2022b header.b="Z9k/yZIA";
|
||||
spf=pass (google.com: domain of mjl@test.xmox.nl designates 2a02:2770::21a:4aff:feba:bde0 as permitted sender) smtp.mailfrom=mjl@test.xmox.nl;
|
||||
dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=test.xmox.nl
|
||||
`
|
||||
|
||||
ar, err = ParseAuthResults(google)
|
||||
tcheck(t, err, "parsing auth results header")
|
||||
tcompare(t, ar, AuthResults{
|
||||
Hostname: "mx.google.com",
|
||||
Methods: []AuthMethod{
|
||||
{
|
||||
Method: "dkim",
|
||||
Result: "pass",
|
||||
Props: []AuthProp{
|
||||
{Type: "header", Property: "i", IsAddrLike: true, Value: "@test.xmox.nl"},
|
||||
{Type: "header", Property: "s", Value: "2022b"},
|
||||
{Type: "header", Property: "b", Value: "Z9k/yZIA"},
|
||||
},
|
||||
},
|
||||
{
|
||||
Method: "spf",
|
||||
Result: "pass",
|
||||
Props: []AuthProp{
|
||||
{Type: "smtp", Property: "mailfrom", IsAddrLike: true, Value: "mjl@test.xmox.nl"},
|
||||
},
|
||||
},
|
||||
{
|
||||
Method: "dmarc",
|
||||
Result: "pass",
|
||||
Props: []AuthProp{
|
||||
{Type: "header", Property: "from", Value: "test.xmox.nl"},
|
||||
},
|
||||
},
|
||||
},
|
||||
})
|
||||
|
||||
const yahoo = `atlas220.free.mail.bf1.yahoo.com;
|
||||
dkim=perm_fail header.i=@ueber.net header.s=2023a;
|
||||
dkim=pass header.i=@ueber.net header.s=2023b;
|
||||
spf=pass smtp.mailfrom=ueber.net;
|
||||
dmarc=pass(p=REJECT) header.from=ueber.net;
|
||||
`
|
||||
ar, err = ParseAuthResults(yahoo)
|
||||
tcheck(t, err, "parsing auth results header")
|
||||
tcompare(t, ar, AuthResults{
|
||||
Hostname: "atlas220.free.mail.bf1.yahoo.com",
|
||||
Methods: []AuthMethod{
|
||||
{
|
||||
Method: "dkim",
|
||||
Result: "perm_fail",
|
||||
Props: []AuthProp{
|
||||
{Type: "header", Property: "i", IsAddrLike: true, Value: "@ueber.net"},
|
||||
{Type: "header", Property: "s", Value: "2023a"},
|
||||
},
|
||||
},
|
||||
{
|
||||
Method: "dkim",
|
||||
Result: "pass",
|
||||
Props: []AuthProp{
|
||||
{Type: "header", Property: "i", IsAddrLike: true, Value: "@ueber.net"},
|
||||
{Type: "header", Property: "s", Value: "2023b"},
|
||||
},
|
||||
},
|
||||
{
|
||||
Method: "spf",
|
||||
Result: "pass",
|
||||
Props: []AuthProp{
|
||||
{Type: "smtp", Property: "mailfrom", Value: "ueber.net"},
|
||||
},
|
||||
},
|
||||
{
|
||||
Method: "dmarc",
|
||||
Result: "pass",
|
||||
Props: []AuthProp{
|
||||
{Type: "header", Property: "from", Value: "ueber.net"},
|
||||
},
|
||||
},
|
||||
},
|
||||
})
|
||||
|
||||
const proton0 = `mail.protonmail.ch; dkim=pass (Good
|
||||
ed25519-sha256 signature) header.d=ueber.net header.i=mechiel@ueber.net
|
||||
header.a=ed25519-sha256; dkim=pass (Good 2048 bit rsa-sha256 signature)
|
||||
header.d=ueber.net header.i=mechiel@ueber.net header.a=rsa-sha256
|
||||
`
|
||||
ar, err = ParseAuthResults(proton0)
|
||||
tcheck(t, err, "parsing auth results header")
|
||||
tcompare(t, ar, AuthResults{
|
||||
Hostname: "mail.protonmail.ch",
|
||||
Methods: []AuthMethod{
|
||||
{
|
||||
Method: "dkim",
|
||||
Result: "pass",
|
||||
Props: []AuthProp{
|
||||
{Type: "header", Property: "d", Value: "ueber.net"},
|
||||
{Type: "header", Property: "i", IsAddrLike: true, Value: "mechiel@ueber.net"},
|
||||
{Type: "header", Property: "a", Value: "ed25519-sha256"},
|
||||
},
|
||||
},
|
||||
{
|
||||
Method: "dkim",
|
||||
Result: "pass",
|
||||
Props: []AuthProp{
|
||||
{Type: "header", Property: "d", Value: "ueber.net"},
|
||||
{Type: "header", Property: "i", IsAddrLike: true, Value: "mechiel@ueber.net"},
|
||||
{Type: "header", Property: "a", Value: "rsa-sha256"},
|
||||
},
|
||||
},
|
||||
},
|
||||
})
|
||||
|
||||
const proton1 = `mail.protonmail.ch; dmarc=pass (p=reject dis=none)
|
||||
header.from=ueber.net
|
||||
`
|
||||
ar, err = ParseAuthResults(proton1)
|
||||
tcheck(t, err, "parsing auth results header")
|
||||
tcompare(t, ar, AuthResults{
|
||||
Hostname: "mail.protonmail.ch",
|
||||
Methods: []AuthMethod{
|
||||
{
|
||||
Method: "dmarc",
|
||||
Result: "pass",
|
||||
Props: []AuthProp{
|
||||
{Type: "header", Property: "from", Value: "ueber.net"},
|
||||
},
|
||||
},
|
||||
},
|
||||
})
|
||||
const proton2 = `mail.protonmail.ch; spf=pass smtp.mailfrom=ueber.net
|
||||
`
|
||||
ar, err = ParseAuthResults(proton2)
|
||||
tcheck(t, err, "parsing auth results header")
|
||||
tcompare(t, ar, AuthResults{
|
||||
Hostname: "mail.protonmail.ch",
|
||||
Methods: []AuthMethod{
|
||||
{
|
||||
Method: "spf",
|
||||
Result: "pass",
|
||||
Props: []AuthProp{
|
||||
{Type: "smtp", Property: "mailfrom", Value: "ueber.net"},
|
||||
},
|
||||
},
|
||||
},
|
||||
})
|
||||
const proton3 = `mail.protonmail.ch; arc=none smtp.remote-ip=84.22.96.237
|
||||
`
|
||||
ar, err = ParseAuthResults(proton3)
|
||||
tcheck(t, err, "parsing auth results header")
|
||||
tcompare(t, ar, AuthResults{
|
||||
Hostname: "mail.protonmail.ch",
|
||||
Methods: []AuthMethod{
|
||||
{
|
||||
Method: "arc",
|
||||
Result: "none",
|
||||
Props: []AuthProp{
|
||||
{Type: "smtp", Property: "remote-ip", Value: "84.22.96.237"},
|
||||
},
|
||||
},
|
||||
},
|
||||
})
|
||||
const proton4 = `mail.protonmail.ch; dkim=permerror (0-bit key) header.d=ueber.net
|
||||
header.i=mechiel@ueber.net header.b="a4SMWyJ7"; dkim=pass (2048-bit key)
|
||||
header.d=ueber.net header.i=mechiel@ueber.net header.b="mQickWQ7"
|
||||
`
|
||||
ar, err = ParseAuthResults(proton4)
|
||||
tcheck(t, err, "parsing auth results header")
|
||||
tcompare(t, ar, AuthResults{
|
||||
Hostname: "mail.protonmail.ch",
|
||||
Methods: []AuthMethod{
|
||||
{
|
||||
Method: "dkim",
|
||||
Result: "permerror",
|
||||
Props: []AuthProp{
|
||||
{Type: "header", Property: "d", Value: "ueber.net"},
|
||||
{Type: "header", Property: "i", IsAddrLike: true, Value: "mechiel@ueber.net"},
|
||||
{Type: "header", Property: "b", Value: "a4SMWyJ7"},
|
||||
},
|
||||
},
|
||||
{
|
||||
Method: "dkim",
|
||||
Result: "pass",
|
||||
Props: []AuthProp{
|
||||
{Type: "header", Property: "d", Value: "ueber.net"},
|
||||
{Type: "header", Property: "i", IsAddrLike: true, Value: "mechiel@ueber.net"},
|
||||
{Type: "header", Property: "b", Value: "mQickWQ7"},
|
||||
},
|
||||
},
|
||||
},
|
||||
})
|
||||
|
||||
// Outlook adds an invalid line, missing required hostname at the start. And their
|
||||
// dmarc "action=none" is invalid. Nothing to be done.
|
||||
const outlook = `x; spf=pass (sender IP is 84.22.96.237)
|
||||
smtp.mailfrom=ueber.net; dkim=pass (signature was verified)
|
||||
header.d=ueber.net;dmarc=pass action=none header.from=ueber.net;compauth=pass
|
||||
reason=100
|
||||
`
|
||||
_, err = ParseAuthResults(outlook)
|
||||
if err == nil {
|
||||
t.Fatalf("missing error while parsing authresults header from outlook")
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -26,7 +26,7 @@ func tcheck(t *testing.T, err error, msg string) {
|
|||
func tcompare(t *testing.T, got, exp any) {
|
||||
t.Helper()
|
||||
if !reflect.DeepEqual(got, exp) {
|
||||
t.Fatalf("got %q, expected %q", got, exp)
|
||||
t.Fatalf("got %v, expected %v", got, exp)
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -261,7 +261,6 @@ func (p *parser) xdomain() dns.Domain {
|
|||
return d
|
||||
}
|
||||
|
||||
// ../rfc/5321:2303
|
||||
// ../rfc/5321:2303 ../rfc/6531:411
|
||||
func (p *parser) xsubdomain() string {
|
||||
return p.xtakefn1("subdomain", func(c rune, i int) bool {
|
||||
|
|
@ -278,9 +277,16 @@ func (p *parser) xmailbox() smtp.Path {
|
|||
|
||||
// ../rfc/5321:2307
|
||||
func (p *parser) xldhstr() string {
|
||||
return p.xtakefn1("ldh-str", func(c rune, i int) bool {
|
||||
return c >= 'A' && c <= 'Z' || c >= '0' && c <= '9' || i == 0 && c == '-'
|
||||
s := p.xtakefn1("ldh-str", func(c rune, i int) bool {
|
||||
return c >= 'A' && c <= 'Z' || c >= '0' && c <= '9' || c == '-'
|
||||
})
|
||||
if s == "-" {
|
||||
p.xerrorf("empty ldh-str")
|
||||
} else if strings.HasSuffix(s, "-") {
|
||||
p.o--
|
||||
s = s[:len(s)-1]
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
// parse address-literal or domain.
|
||||
|
|
|
|||
Loading…
Reference in a new issue