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go/go/a5ae3a45aa44ad33e0c03d2d4093c1cd7bbd5a81/./src/net/mail/message_test.go
blob: c606dd930411e5b1a0f8f65c9f55fb2b32410f30 [file]
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package mail
import (
"bytes"
"fmt"
"io"
"mime"
"reflect"
"slices"
"strings"
"testing"
"time"
)
var parseTests = []struct {
in string
header Header
body string
}{
{
// RFC 5322, Appendix A.1.1
in: `From: John Doe <jdoe@machine.example>
To: Mary Smith <mary@example.net>
Subject: Saying Hello
Date: Fri, 21 Nov 1997 09:55:06 -0600
Message-ID: <1234@local.machine.example>
This is a message just to say hello.
So, "Hello".
`,
header: Header{
"From": []string{"John Doe <jdoe@machine.example>"},
"To": []string{"Mary Smith <mary@example.net>"},
"Subject": []string{"Saying Hello"},
"Date": []string{"Fri, 21 Nov 1997 09:55:06 -0600"},
"Message-Id": []string{"<1234@local.machine.example>"},
},
body: "This is a message just to say hello.\nSo, \"Hello\".\n",
},
{
// RFC 5965, Appendix B.1, a part of the multipart message (a header-only sub message)
in: `Feedback-Type: abuse
User-Agent: SomeGenerator/1.0
Version: 1
`,
header: Header{
"Feedback-Type": []string{"abuse"},
"User-Agent": []string{"SomeGenerator/1.0"},
"Version": []string{"1"},
},
body: "",
},
{
// RFC 5322 permits any printable ASCII character,
// except colon, in a header key. Issue #58862.
in: `From: iant@golang.org
Custom/Header: v
Body
`,
header: Header{
"From": []string{"iant@golang.org"},
"Custom/Header": []string{"v"},
},
body: "Body\n",
},
{
// RFC 4155 mbox format. We've historically permitted this,
// so we continue to permit it. Issue #60332.
in: `From iant@golang.org Mon Jun 19 00:00:00 2023
From: iant@golang.org
Hello, gophers!
`,
header: Header{
"From": []string{"iant@golang.org"},
"From iant@golang.org Mon Jun 19 00": []string{"00:00 2023"},
},
body: "Hello, gophers!\n",
},
}
func TestParsing(t *testing.T) {
for i, test := range parseTests {
msg, err := ReadMessage(bytes.NewBuffer([]byte(test.in)))
if err != nil {
t.Errorf("test #%d: Failed parsing message: %v", i, err)
continue
}
if !headerEq(msg.Header, test.header) {
t.Errorf("test #%d: Incorrectly parsed message header.\nGot:\n%+v\nWant:\n%+v",
i, msg.Header, test.header)
}
body, err := io.ReadAll(msg.Body)
if err != nil {
t.Errorf("test #%d: Failed reading body: %v", i, err)
continue
}
bodyStr := string(body)
if bodyStr != test.body {
t.Errorf("test #%d: Incorrectly parsed message body.\nGot:\n%+v\nWant:\n%+v",
i, bodyStr, test.body)
}
}
}
func headerEq(a, b Header) bool {
if len(a) != len(b) {
return false
}
for k, as := range a {
bs, ok := b[k]
if !ok {
return false
}
if !slices.Equal(as, bs) {
return false
}
}
return true
}
func TestDateParsing(t *testing.T) {
tests := []struct {
dateStr string
exp time.Time
}{
// RFC 5322, Appendix A.1.1
{
"Fri, 21 Nov 1997 09:55:06 -0600",
time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
},
// RFC 5322, Appendix A.6.2
// Obsolete date.
{
"21 Nov 97 09:55:06 GMT",
time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("GMT", 0)),
},
// Commonly found format not specified by RFC 5322.
{
"Fri, 21 Nov 1997 09:55:06 -0600 (MDT)",
time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
},
{
"Thu, 20 Nov 1997 09:55:06 -0600 (MDT)",
time.Date(1997, 11, 20, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
},
{
"Thu, 20 Nov 1997 09:55:06 GMT (GMT)",
time.Date(1997, 11, 20, 9, 55, 6, 0, time.UTC),
},
{
"Fri, 21 Nov 1997 09:55:06 +1300 (TOT)",
time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", +13*60*60)),
},
}
for _, test := range tests {
hdr := Header{
"Date": []string{test.dateStr},
}
date, err := hdr.Date()
if err != nil {
t.Errorf("Header(Date: %s).Date(): %v", test.dateStr, err)
} else if !date.Equal(test.exp) {
t.Errorf("Header(Date: %s).Date() = %+v, want %+v", test.dateStr, date, test.exp)
}
date, err = ParseDate(test.dateStr)
if err != nil {
t.Errorf("ParseDate(%s): %v", test.dateStr, err)
} else if !date.Equal(test.exp) {
t.Errorf("ParseDate(%s) = %+v, want %+v", test.dateStr, date, test.exp)
}
}
}
func TestDateParsingCFWS(t *testing.T) {
tests := []struct {
dateStr string
exp time.Time
valid bool
}{
// FWS-only. No date.
{
" ",
// nil is not allowed
time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
false,
},
// FWS is allowed before optional day of week.
{
" Fri, 21 Nov 1997 09:55:06 -0600",
time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
true,
},
{
"21 Nov 1997 09:55:06 -0600",
time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
true,
},
{
"Fri 21 Nov 1997 09:55:06 -0600",
time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
false, // missing ,
},
// FWS is allowed before day of month but HTAB fails.
{
"Fri, 21 Nov 1997 09:55:06 -0600",
time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
true,
},
// FWS is allowed before and after year but HTAB fails.
{
"Fri, 21 Nov 1997 09:55:06 -0600",
time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
true,
},
// FWS is allowed before zone but HTAB is not handled. Obsolete timezone is handled.
{
"Fri, 21 Nov 1997 09:55:06 CST",
time.Time{},
true,
},
// FWS is allowed after date and a CRLF is already replaced.
{
"Fri, 21 Nov 1997 09:55:06 CST (no leading FWS and a trailing CRLF) \r\n",
time.Time{},
true,
},
// CFWS is a reduced set of US-ASCII where space and accentuated are obsolete. No error.
{
"Fri, 21 Nov 1997 09:55:06 -0600 (MDT and non-US-ASCII signs éèç )",
time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
true,
},
// CFWS is allowed after zone including a nested comment.
// Trailing FWS is allowed.
{
"Fri, 21 Nov 1997 09:55:06 -0600 \r\n (thisisa(valid)cfws) \t ",
time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
true,
},
// CRLF is incomplete and misplaced.
{
"Fri, 21 Nov 1997 \r 09:55:06 -0600 \r\n (thisisa(valid)cfws) \t ",
time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
false,
},
// CRLF is complete but misplaced. No error is returned.
{
"Fri, 21 Nov 199\r\n7 09:55:06 -0600 \r\n (thisisa(valid)cfws) \t ",
time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
true, // should be false in the strict interpretation of RFC 5322.
},
// Invalid ASCII in date.
{
"Fri, 21 Nov 1997 ù 09:55:06 -0600 \r\n (thisisa(valid)cfws) \t ",
time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
false,
},
// CFWS chars () in date.
{
"Fri, 21 Nov () 1997 09:55:06 -0600 \r\n (thisisa(valid)cfws) \t ",
time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
false,
},
// Timezone is invalid but T is found in comment.
{
"Fri, 21 Nov 1997 09:55:06 -060 \r\n (Thisisa(valid)cfws) \t ",
time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
false,
},
// Date has no month.
{
"Fri, 21 1997 09:55:06 -0600",
time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
false,
},
// Invalid month : OCT iso Oct
{
"Fri, 21 OCT 1997 09:55:06 CST",
time.Time{},
false,
},
// A too short time zone.
{
"Fri, 21 Nov 1997 09:55:06 -060",
time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
false,
},
// A too short obsolete time zone.
{
"Fri, 21 1997 09:55:06 GT",
time.Date(1997, 11, 21, 9, 55, 6, 0, time.FixedZone("", -6*60*60)),
false,
},
// Ensure that the presence of "T" in the date
// doesn't trip out ParseDate, as per issue 39260.
{
"Tue, 26 May 2020 14:04:40 GMT",
time.Date(2020, 05, 26, 14, 04, 40, 0, time.UTC),
true,
},
{
"Tue, 26 May 2020 14:04:40 UT",
time.Date(2020, 05, 26, 14, 04, 40, 0, time.UTC),
true,
},
{
"Thu, 21 May 2020 14:04:40 UT",
time.Date(2020, 05, 21, 14, 04, 40, 0, time.UTC),
true,
},
{
"Tue, 26 May 2020 14:04:40 XT",
time.Date(2020, 05, 26, 14, 04, 40, 0, time.UTC),
false,
},
{
"Thu, 21 May 2020 14:04:40 XT",
time.Date(2020, 05, 21, 14, 04, 40, 0, time.UTC),
false,
},
{
"Thu, 21 May 2020 14:04:40 UTC",
time.Date(2020, 05, 21, 14, 04, 40, 0, time.UTC),
true,
},
{
"Fri, 21 Nov 1997 09:55:06 GMT (GMT)",
time.Date(1997, 11, 21, 9, 55, 6, 0, time.UTC),
true,
},
}
for _, test := range tests {
hdr := Header{
"Date": []string{test.dateStr},
}
date, err := hdr.Date()
if err != nil && test.valid {
t.Errorf("Header(Date: %s).Date(): %v", test.dateStr, err)
} else if err == nil && test.exp.IsZero() {
// OK. Used when exact result depends on the
// system's local zoneinfo.
} else if err == nil && !date.Equal(test.exp) && test.valid {
t.Errorf("Header(Date: %s).Date() = %+v, want %+v", test.dateStr, date, test.exp)
} else if err == nil && !test.valid { // an invalid expression was tested
t.Errorf("Header(Date: %s).Date() did not return an error but %v", test.dateStr, date)
}
date, err = ParseDate(test.dateStr)
if err != nil && test.valid {
t.Errorf("ParseDate(%s): %v", test.dateStr, err)
} else if err == nil && test.exp.IsZero() {
// OK. Used when exact result depends on the
// system's local zoneinfo.
} else if err == nil && !test.valid { // an invalid expression was tested
t.Errorf("ParseDate(%s) did not return an error but %v", test.dateStr, date)
} else if err == nil && test.valid && !date.Equal(test.exp) {
t.Errorf("ParseDate(%s) = %+v, want %+v", test.dateStr, date, test.exp)
}
}
}
func TestAddressParsingError(t *testing.T) {
mustErrTestCases := [...]struct {
text string
wantErrText string
}{
0: {"=?iso-8859-2?Q?Bogl=E1rka_Tak=E1cs?= <unknown@gmail.com>", "charset not supported"},
1: {"a@gmail.com b@gmail.com", "expected single address"},
2: {string([]byte{0xed, 0xa0, 0x80}) + " <micro@example.net>", "invalid utf-8 in address"},
3: {"\"" + string([]byte{0xed, 0xa0, 0x80}) + "\" <half-surrogate@example.com>", "invalid utf-8 in quoted-string"},
4: {"\"\\" + string([]byte{0x80}) + "\" <escaped-invalid-unicode@example.net>", "invalid utf-8 in quoted-string"},
5: {"\"\x00\" <null@example.net>", "bad character in quoted-string"},
6: {"\"\\\x00\" <escaped-null@example.net>", "bad character in quoted-string"},
7: {"John Doe", "no angle-addr"},
8: {`<jdoe#machine.example>`, "missing @ in addr-spec"},
9: {`John <middle> Doe <jdoe@machine.example>`, "missing @ in addr-spec"},
10: {"cfws@example.com (", "misformatted parenthetical comment"},
11: {"empty group: ;", "empty group"},
12: {"root group: embed group: null@example.com;", "no angle-addr"},
13: {"group not closed: null@example.com", "expected comma"},
14: {"group: first@example.com, second@example.com;", "group with multiple addresses"},
15: {"john.doe", "missing '@' or angle-addr"},
16: {"john.doe@", "missing '@' or angle-addr"},
17: {"John Doe@foo.bar", "no angle-addr"},
18: {" group: null@example.com; (asd", "misformatted parenthetical comment"},
19: {" group: ; (asd", "misformatted parenthetical comment"},
20: {`(John) Doe <jdoe@machine.example>`, "missing word in phrase:"},
21: {"<jdoe@[" + string([]byte{0xed, 0xa0, 0x80}) + "192.168.0.1]>", "invalid utf-8 in domain-literal"},
22: {"<jdoe@[[192.168.0.1]>", "bad character in domain-literal"},
23: {"<jdoe@[192.168.0.1>", "unclosed domain-literal"},
24: {"<jdoe@[256.0.0.1]>", "invalid IP address in domain-literal"},
25: {"<jdoe@[fd42::de:ad:be:ef]>", "invalid IP address in domain-literal"},
}
for i, tc := range mustErrTestCases {
_, err := ParseAddress(tc.text)
if err == nil || !strings.Contains(err.Error(), tc.wantErrText) {
t.Errorf(`mail.ParseAddress(%q) #%d want %q, got %v`, tc.text, i, tc.wantErrText, err)
}
}
t.Run("CustomWordDecoder", func(t *testing.T) {
p := &AddressParser{WordDecoder: &mime.WordDecoder{}}
for i, tc := range mustErrTestCases {
_, err := p.Parse(tc.text)
if err == nil || !strings.Contains(err.Error(), tc.wantErrText) {
t.Errorf(`p.Parse(%q) #%d want %q, got %v`, tc.text, i, tc.wantErrText, err)
}
}
})
}
func TestAddressParsing(t *testing.T) {
tests := []struct {
addrsStr string
exp []*Address
}{
// Bare address
{
`jdoe@machine.example`,
[]*Address{{
Address: "jdoe@machine.example",
}},
},
// RFC 5322, Appendix A.1.1
{
`John Doe <jdoe@machine.example>`,
[]*Address{{
Name: "John Doe",
Address: "jdoe@machine.example",
}},
},
// RFC 5322, Appendix A.1.2
{
`"Joe Q. Public" <john.q.public@example.com>`,
[]*Address{{
Name: "Joe Q. Public",
Address: "john.q.public@example.com",
}},
},
// Comment in display name
{
`John (middle) Doe <jdoe@machine.example>`,
[]*Address{{
Name: "John Doe",
Address: "jdoe@machine.example",
}},
},
// Display name is quoted string, so comment is not a comment
{
`"John (middle) Doe" <jdoe@machine.example>`,
[]*Address{{
Name: "John (middle) Doe",
Address: "jdoe@machine.example",
}},
},
{
`"John <middle> Doe" <jdoe@machine.example>`,
[]*Address{{
Name: "John <middle> Doe",
Address: "jdoe@machine.example",
}},
},
{
`Mary Smith <mary@x.test>, jdoe@example.org, Who? <one@y.test>`,
[]*Address{
{
Name: "Mary Smith",
Address: "mary@x.test",
},
{
Address: "jdoe@example.org",
},
{
Name: "Who?",
Address: "one@y.test",
},
},
},
{
`<boss@nil.test>, "Giant; \"Big\" Box" <sysservices@example.net>`,
[]*Address{
{
Address: "boss@nil.test",
},
{
Name: `Giant; "Big" Box`,
Address: "sysservices@example.net",
},
},
},
// RFC 5322, Appendix A.6.1
{
`Joe Q. Public <john.q.public@example.com>`,
[]*Address{{
Name: "Joe Q. Public",
Address: "john.q.public@example.com",
}},
},
// RFC 5322, Appendix A.1.3
{
`group1: groupaddr1@example.com;`,
[]*Address{
{
Name: "",
Address: "groupaddr1@example.com",
},
},
},
{
`empty group: ;`,
[]*Address(nil),
},
{
`A Group:Ed Jones <c@a.test>,joe@where.test,John <jdoe@one.test>;`,
[]*Address{
{
Name: "Ed Jones",
Address: "c@a.test",
},
{
Name: "",
Address: "joe@where.test",
},
{
Name: "John",
Address: "jdoe@one.test",
},
},
},
// RFC5322 4.4 obs-addr-list
{
` , joe@where.test,,John <jdoe@one.test>,`,
[]*Address{
{
Name: "",
Address: "joe@where.test",
},
{
Name: "John",
Address: "jdoe@one.test",
},
},
},
{
` , joe@where.test,,John <jdoe@one.test>,,`,
[]*Address{
{
Name: "",
Address: "joe@where.test",
},
{
Name: "John",
Address: "jdoe@one.test",
},
},
},
{
`Group1: <addr1@example.com>;, Group 2: addr2@example.com;, John <addr3@example.com>`,
[]*Address{
{
Name: "",
Address: "addr1@example.com",
},
{
Name: "",
Address: "addr2@example.com",
},
{
Name: "John",
Address: "addr3@example.com",
},
},
},
// RFC 2047 "Q"-encoded ISO-8859-1 address.
{
`=?iso-8859-1?q?J=F6rg_Doe?= <joerg@example.com>`,
[]*Address{
{
Name: `Jörg Doe`,
Address: "joerg@example.com",
},
},
},
// RFC 2047 "Q"-encoded US-ASCII address. Dumb but legal.
{
`=?us-ascii?q?J=6Frg_Doe?= <joerg@example.com>`,
[]*Address{
{
Name: `Jorg Doe`,
Address: "joerg@example.com",
},
},
},
// RFC 2047 "Q"-encoded UTF-8 address.
{
`=?utf-8?q?J=C3=B6rg_Doe?= <joerg@example.com>`,
[]*Address{
{
Name: `Jörg Doe`,
Address: "joerg@example.com",
},
},
},
// RFC 2047 "Q"-encoded UTF-8 address with multiple encoded-words.
{
`=?utf-8?q?J=C3=B6rg?= =?utf-8?q?Doe?= <joerg@example.com>`,
[]*Address{
{
Name: `JörgDoe`,
Address: "joerg@example.com",
},
},
},
// RFC 2047, Section 8.
{
`=?ISO-8859-1?Q?Andr=E9?= Pirard <PIRARD@vm1.ulg.ac.be>`,
[]*Address{
{
Name: `André Pirard`,
Address: "PIRARD@vm1.ulg.ac.be",
},
},
},
// Custom example of RFC 2047 "B"-encoded ISO-8859-1 address.
{
`=?ISO-8859-1?B?SvZyZw==?= <joerg@example.com>`,
[]*Address{
{
Name: `Jörg`,
Address: "joerg@example.com",
},
},
},
// Custom example of RFC 2047 "B"-encoded UTF-8 address.
{
`=?UTF-8?B?SsO2cmc=?= <joerg@example.com>`,
[]*Address{
{
Name: `Jörg`,
Address: "joerg@example.com",
},
},
},
// Custom example with "." in name. For issue 4938
{
`Asem H. <noreply@example.com>`,
[]*Address{
{
Name: `Asem H.`,
Address: "noreply@example.com",
},
},
},
// RFC 6532 3.2.3, qtext /= UTF8-non-ascii
{
`"Gø Pher" <gopher@example.com>`,
[]*Address{
{
Name: `Gø Pher`,
Address: "gopher@example.com",
},
},
},
// RFC 6532 3.2, atext /= UTF8-non-ascii
{
`µ <micro@example.com>`,
[]*Address{
{
Name: `µ`,
Address: "micro@example.com",
},
},
},
// RFC 6532 3.2.2, local address parts allow UTF-8
{
`Micro <µ@example.com>`,
[]*Address{
{
Name: `Micro`,
Address: "µ@example.com",
},
},
},
// RFC 6532 3.2.4, domains parts allow UTF-8
{
`Micro <micro@µ.example.com>`,
[]*Address{
{
Name: `Micro`,
Address: "micro@µ.example.com",
},
},
},
// Issue 14866
{
`"" <emptystring@example.com>`,
[]*Address{
{
Name: "",
Address: "emptystring@example.com",
},
},
},
// CFWS
{
`<cfws@example.com> (CFWS (cfws)) (another comment)`,
[]*Address{
{
Name: "",
Address: "cfws@example.com",
},
},
},
{
`<cfws@example.com> () (another comment), <cfws2@example.com> (another)`,
[]*Address{
{
Name: "",
Address: "cfws@example.com",
},
{
Name: "",
Address: "cfws2@example.com",
},
},
},
// Comment as display name
{
`john@example.com (John Doe)`,
[]*Address{
{
Name: "John Doe",
Address: "john@example.com",
},
},
},
// Comment and display name
{
`John Doe <john@example.com> (Joey)`,
[]*Address{
{
Name: "John Doe",
Address: "john@example.com",
},
},
},
// Comment as display name, no space
{
`john@example.com(John Doe)`,
[]*Address{
{
Name: "John Doe",
Address: "john@example.com",
},
},
},
// Comment as display name, Q-encoded
{
`asjo@example.com (Adam =?utf-8?Q?Sj=C3=B8gren?=)`,
[]*Address{
{
Name: "Adam Sjøgren",
Address: "asjo@example.com",
},
},
},
// Comment as display name, Q-encoded and tab-separated
{
`asjo@example.com (Adam =?utf-8?Q?Sj=C3=B8gren?=)`,
[]*Address{
{
Name: "Adam Sjøgren",
Address: "asjo@example.com",
},
},
},
// Nested comment as display name, Q-encoded
{
`asjo@example.com (Adam =?utf-8?Q?Sj=C3=B8gren?= (Debian))`,
[]*Address{
{
Name: "Adam Sjøgren (Debian)",
Address: "asjo@example.com",
},
},
},
// Comment in group display name
{
`group (comment:): a@example.com, b@example.com;`,
[]*Address{
{
Address: "a@example.com",
},
{
Address: "b@example.com",
},
},
},
{
`x(:"):"@a.example;("@b.example;`,
[]*Address{
{
Address: `@a.example;(@b.example`,
},
},
},
// Domain-literal
{
`jdoe@[192.168.0.1]`,
[]*Address{{
Address: "jdoe@[192.168.0.1]",
}},
},
{
`John Doe <jdoe@[192.168.0.1]>`,
[]*Address{{
Name: "John Doe",
Address: "jdoe@[192.168.0.1]",
}},
},
// IPv6 Domain-literal
{
`jdoe@[IPv6:fd42::dead:beef:1234]`,
[]*Address{{
Address: "jdoe@[IPv6:fd42::dead:beef:1234]",
}},
},
{
`John Doe <jdoe@[IPv6:fd42::dead:beef:1234]>`,
[]*Address{{
Name: "John Doe",
Address: "jdoe@[IPv6:fd42::dead:beef:1234]",
}},
},
}
for _, test := range tests {
if len(test.exp) == 1 {
addr, err := ParseAddress(test.addrsStr)
if err != nil {
t.Errorf("Failed parsing (single) %q: %v", test.addrsStr, err)
continue
}
if !reflect.DeepEqual([]*Address{addr}, test.exp) {
t.Errorf("Parse (single) of %q: got %+v, want %+v", test.addrsStr, addr, test.exp)
}
}
addrs, err := ParseAddressList(test.addrsStr)
if err != nil {
t.Errorf("Failed parsing (list) %q: %v", test.addrsStr, err)
continue
}
if !reflect.DeepEqual(addrs, test.exp) {
t.Errorf("Parse (list) of %q: got %+v, want %+v", test.addrsStr, addrs, test.exp)
}
}
}
func TestAddressParser(t *testing.T) {
tests := []struct {
addrsStr string
exp []*Address
}{
// Bare address
{
`jdoe@machine.example`,
[]*Address{{
Address: "jdoe@machine.example",
}},
},
// RFC 5322, Appendix A.1.1
{
`John Doe <jdoe@machine.example>`,
[]*Address{{
Name: "John Doe",
Address: "jdoe@machine.example",
}},
},
// RFC 5322, Appendix A.1.2
{
`"Joe Q. Public" <john.q.public@example.com>`,
[]*Address{{
Name: "Joe Q. Public",
Address: "john.q.public@example.com",
}},
},
{
`Mary Smith <mary@x.test>, jdoe@example.org, Who? <one@y.test>`,
[]*Address{
{
Name: "Mary Smith",
Address: "mary@x.test",
},
{
Address: "jdoe@example.org",
},
{
Name: "Who?",
Address: "one@y.test",
},
},
},
{
`<boss@nil.test>, "Giant; \"Big\" Box" <sysservices@example.net>`,
[]*Address{
{
Address: "boss@nil.test",
},
{
Name: `Giant; "Big" Box`,
Address: "sysservices@example.net",
},
},
},
// RFC 2047 "Q"-encoded ISO-8859-1 address.
{
`=?iso-8859-1?q?J=F6rg_Doe?= <joerg@example.com>`,
[]*Address{
{
Name: `Jörg Doe`,
Address: "joerg@example.com",
},
},
},
// RFC 2047 "Q"-encoded US-ASCII address. Dumb but legal.
{
`=?us-ascii?q?J=6Frg_Doe?= <joerg@example.com>`,
[]*Address{
{
Name: `Jorg Doe`,
Address: "joerg@example.com",
},
},
},
// RFC 2047 "Q"-encoded ISO-8859-15 address.
{
`=?ISO-8859-15?Q?J=F6rg_Doe?= <joerg@example.com>`,
[]*Address{
{
Name: `Jörg Doe`,
Address: "joerg@example.com",
},
},
},
// RFC 2047 "B"-encoded windows-1252 address.
{
`=?windows-1252?q?Andr=E9?= Pirard <PIRARD@vm1.ulg.ac.be>`,
[]*Address{
{
Name: `André Pirard`,
Address: "PIRARD@vm1.ulg.ac.be",
},
},
},
// Custom example of RFC 2047 "B"-encoded ISO-8859-15 address.
{
`=?ISO-8859-15?B?SvZyZw==?= <joerg@example.com>`,
[]*Address{
{
Name: `Jörg`,
Address: "joerg@example.com",
},
},
},
// Custom example of RFC 2047 "B"-encoded UTF-8 address.
{
`=?UTF-8?B?SsO2cmc=?= <joerg@example.com>`,
[]*Address{
{
Name: `Jörg`,
Address: "joerg@example.com",
},
},
},
// Custom example with "." in name. For issue 4938
{
`Asem H. <noreply@example.com>`,
[]*Address{
{
Name: `Asem H.`,
Address: "noreply@example.com",
},
},
},
// Domain-literal
{
`jdoe@[192.168.0.1]`,
[]*Address{{
Address: "jdoe@[192.168.0.1]",
}},
},
{
`John Doe <jdoe@[192.168.0.1]>`,
[]*Address{{
Name: "John Doe",
Address: "jdoe@[192.168.0.1]",
}},
},
// IPv6 Domain-literal
{
`jdoe@[IPv6:fd42::dead:beef:1234]`,
[]*Address{{
Address: "jdoe@[IPv6:fd42::dead:beef:1234]",
}},
},
{
`John Doe <jdoe@[IPv6:fd42::dead:beef:1234]>`,
[]*Address{{
Name: "John Doe",
Address: "jdoe@[IPv6:fd42::dead:beef:1234]",
}},
},
}
ap := AddressParser{WordDecoder: &mime.WordDecoder{
CharsetReader: func(charset string, input io.Reader) (io.Reader, error) {
in, err := io.ReadAll(input)
if err != nil {
return nil, err
}
switch charset {
case "iso-8859-15":
in = bytes.ReplaceAll(in, []byte("\xf6"), []byte("ö"))
case "windows-1252":
in = bytes.ReplaceAll(in, []byte("\xe9"), []byte("é"))
}
return bytes.NewReader(in), nil
},
}}
for _, test := range tests {
if len(test.exp) == 1 {
addr, err := ap.Parse(test.addrsStr)
if err != nil {
t.Errorf("Failed parsing (single) %q: %v", test.addrsStr, err)
continue
}
if !reflect.DeepEqual([]*Address{addr}, test.exp) {
t.Errorf("Parse (single) of %q: got %+v, want %+v", test.addrsStr, addr, test.exp)
}
}
addrs, err := ap.ParseList(test.addrsStr)
if err != nil {
t.Errorf("Failed parsing (list) %q: %v", test.addrsStr, err)
continue
}
if !reflect.DeepEqual(addrs, test.exp) {
t.Errorf("Parse (list) of %q: got %+v, want %+v", test.addrsStr, addrs, test.exp)
}
}
}
func TestAddressString(t *testing.T) {
tests := []struct {
addr *Address
exp string
}{
{
&Address{Address: "bob@example.com"},
"<bob@example.com>",
},
{ // quoted local parts: RFC 5322, 3.4.1. and 3.2.4.
&Address{Address: `my@idiot@address@example.com`},
`<"my@idiot@address"@example.com>`,
},
{ // quoted local parts
&Address{Address: ` @example.com`},
`<" "@example.com>`,
},
{
&Address{Name: "Bob", Address: "bob@example.com"},
`"Bob" <bob@example.com>`,
},
{
// note the ö (o with an umlaut)
&Address{Name: "Böb", Address: "bob@example.com"},
`=?utf-8?q?B=C3=B6b?= <bob@example.com>`,
},
{
&Address{Name: "Bob Jane", Address: "bob@example.com"},
`"Bob Jane" <bob@example.com>`,
},
{
&Address{Name: "Böb Jacöb", Address: "bob@example.com"},
`=?utf-8?q?B=C3=B6b_Jac=C3=B6b?= <bob@example.com>`,
},
{ // https://golang.org/issue/12098
&Address{Name: "Rob", Address: ""},
`"Rob" <@>`,
},
{ // https://golang.org/issue/12098
&Address{Name: "Rob", Address: "@"},
`"Rob" <@>`,
},
{
&Address{Name: "Böb, Jacöb", Address: "bob@example.com"},
`=?utf-8?b?QsO2YiwgSmFjw7Zi?= <bob@example.com>`,
},
{
&Address{Name: "=??Q?x?=", Address: "hello@world.com"},
`"=??Q?x?=" <hello@world.com>`,
},
{
&Address{Name: "=?hello", Address: "hello@world.com"},
`"=?hello" <hello@world.com>`,
},
{
&Address{Name: "world?=", Address: "hello@world.com"},
`"world?=" <hello@world.com>`,
},
{
// should q-encode even for invalid utf-8.
&Address{Name: string([]byte{0xed, 0xa0, 0x80}), Address: "invalid-utf8@example.net"},
"=?utf-8?q?=ED=A0=80?= <invalid-utf8@example.net>",
},
// Domain-literal
{
&Address{Address: "bob@[192.168.0.1]"},
"<bob@[192.168.0.1]>",
},
{
&Address{Name: "Bob", Address: "bob@[192.168.0.1]"},
`"Bob" <bob@[192.168.0.1]>`,
},
// IPv6 Domain-literal
{
&Address{Address: "bob@[IPv6:fd42::dead:beef:1234]"},
"<bob@[IPv6:fd42::dead:beef:1234]>",
},
{
&Address{Name: "Bob", Address: "bob@[IPv6:fd42::dead:beef:1234]"},
`"Bob" <bob@[IPv6:fd42::dead:beef:1234]>`,
},
}
for _, test := range tests {
s := test.addr.String()
if s != test.exp {
t.Errorf("Address%+v.String() = %v, want %v", *test.addr, s, test.exp)
continue
}
// Check round-trip.
if test.addr.Address != "" && test.addr.Address != "@" {
a, err := ParseAddress(test.exp)
if err != nil {
t.Errorf("ParseAddress(%#q): %v", test.exp, err)
continue
}
if a.Name != test.addr.Name || a.Address != test.addr.Address {
t.Errorf("ParseAddress(%#q) = %#v, want %#v", test.exp, a, test.addr)
}
}
}
}
// Check if all valid addresses can be parsed, formatted and parsed again
func TestAddressParsingAndFormatting(t *testing.T) {
// Should pass
tests := []string{
`<Bob@example.com>`,
`<bob.bob@example.com>`,
`<".bob"@example.com>`,
`<" "@example.com>`,
`<some.mail-with-dash@example.com>`,
`<"dot.and space"@example.com>`,
`<"very.unusual.@.unusual.com"@example.com>`,
`<admin@mailserver1>`,
`<postmaster@localhost>`,
"<#!$%&'*+-/=?^_`{}|~@example.org>",
`<"very.(),:;<>[]\".VERY.\"very@\\ \"very\".unusual"@strange.example.com>`, // escaped quotes
`<"()<>[]:,;@\\\"!#$%&'*+-/=?^_{}| ~.a"@example.org>`, // escaped backslashes
`<"Abc\\@def"@example.com>`,
`<"Joe\\Blow"@example.com>`,
`<test1/test2=test3@example.com>`,
`<def!xyz%abc@example.com>`,
`<_somename@example.com>`,
`<joe@uk>`,
`<~@example.com>`,
`<"..."@test.com>`,
`<"john..doe"@example.com>`,
`<"john.doe."@example.com>`,
`<".john.doe"@example.com>`,
`<"."@example.com>`,
`<".."@example.com>`,
`<"0:"@0>`,
`<Bob@[192.168.0.1]>`,
}
for _, test := range tests {
addr, err := ParseAddress(test)
if err != nil {
t.Errorf("Couldn't parse address %s: %s", test, err.Error())
continue
}
str := addr.String()
addr, err = ParseAddress(str)
if err != nil {
t.Errorf("ParseAddr(%q) error: %v", test, err)
continue
}
if addr.String() != test {
t.Errorf("String() round-trip = %q; want %q", addr, test)
continue
}
}
// Should fail
badTests := []string{
`<Abc.example.com>`,
`<A@b@c@example.com>`,
`<a"b(c)d,e:f;g<h>i[j\k]l@example.com>`,
`<just"not"right@example.com>`,
`<this is"not\allowed@example.com>`,
`<this\ still\"not\\allowed@example.com>`,
`<john..doe@example.com>`,
`<john.doe@example..com>`,
`<john.doe@example..com>`,
`<john.doe.@example.com>`,
`<john.doe.@.example.com>`,
`<.john.doe@example.com>`,
`<@example.com>`,
`<.@example.com>`,
`<test@.>`,
`< @example.com>`,
`<""test""blah""@example.com>`,
`<""@0>`,
}
for _, test := range badTests {
_, err := ParseAddress(test)
if err == nil {
t.Errorf("Should have failed to parse address: %s", test)
continue
}
}
}
func TestAddressFormattingAndParsing(t *testing.T) {
tests := []*Address{
{Name: "@lïce", Address: "alice@example.com"},
{Name: "Böb O'Connor", Address: "bob@example.com"},
{Name: "???", Address: "bob@example.com"},
{Name: "Böb ???", Address: "bob@example.com"},
{Name: "Böb (Jacöb)", Address: "bob@example.com"},
{Name: "à#$%&'(),.:;<>@[]^`{|}~'", Address: "bob@example.com"},
{Name: `é\`, Address: "user@example.com"},
// https://golang.org/issue/11292
{Name: "\"\\\x1f,\"", Address: "0@0"},
// https://golang.org/issue/12782
{Name: "naé, mée", Address: "test.mail@gmail.com"},
}
for i, test := range tests {
parsed, err := ParseAddress(test.String())
if err != nil {
t.Errorf("test #%d: ParseAddr(%q) error: %v", i, test.String(), err)
continue
}
if parsed.Name != test.Name {
t.Errorf("test #%d: Parsed name = %q; want %q", i, parsed.Name, test.Name)
}
if parsed.Address != test.Address {
t.Errorf("test #%d: Parsed address = %q; want %q", i, parsed.Address, test.Address)
}
}
}
func TestEmptyAddress(t *testing.T) {
parsed, err := ParseAddress("")
if parsed != nil || err == nil {
t.Errorf(`ParseAddress("") = %v, %v, want nil, error`, parsed, err)
}
list, err := ParseAddressList("")
if len(list) > 0 || err == nil {
t.Errorf(`ParseAddressList("") = %v, %v, want nil, error`, list, err)
}
list, err = ParseAddressList(",")
if len(list) > 0 || err == nil {
t.Errorf(`ParseAddressList("") = %v, %v, want nil, error`, list, err)
}
list, err = ParseAddressList("a@b c@d")
if len(list) > 0 || err == nil {
t.Errorf(`ParseAddressList("") = %v, %v, want nil, error`, list, err)
}
}
func BenchmarkConsumePhrase(b *testing.B) {
for _, n := range []int{10, 100, 1000, 10000} {
b.Run(fmt.Sprintf("words-%d", n), func(b *testing.B) {
input := strings.Repeat("=?utf-8?q?hello?= ", n) + "<user@example.com>"
for b.Loop() {
(&addrParser{s: input}).consumePhrase()
}
})
}
}
func BenchmarkConsumeComment(b *testing.B) {
for _, n := range []int{10, 100, 1000, 10000} {
b.Run(fmt.Sprintf("depth-%d", n), func(b *testing.B) {
// Build a deeply nested comment: (((...a...)))
open := strings.Repeat("(", n)
close := strings.Repeat(")", n)
// consumeComment expects the leading '(' already consumed,
// so we start with one fewer opening paren and the parser
// will handle nesting from there.
input := open[:n-1] + "a" + close
for b.Loop() {
p := addrParser{s: input}
p.consumeComment()
}
})
}
}