mirror of
https://github.com/golang/go
synced 2024-11-17 22:05:02 -07:00
vendor: add golang.org/x/net/idna to the vendor directory for Punycode
Adds golang.org/x/net/idna to the Go repo from the
golang.org/x/net repo's git rev 7db922ba (Dec 2012).
Punycode is needed for http.Get("привет.рф") etc., which will
come in separate commits.
Updates #13835
Change-Id: I313ed82d292737579a3ec5dcf8a9e766f2f75138
Reviewed-on: https://go-review.googlesource.com/28961
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Brad Fitzpatrick
parent
74190735be
commit
13dc4d378b
68
src/vendor/golang_org/x/net/idna/idna.go
vendored
Normal file
68
src/vendor/golang_org/x/net/idna/idna.go
vendored
Normal file
@ -0,0 +1,68 @@
|
||||
// Copyright 2012 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 idna implements IDNA2008 (Internationalized Domain Names for
|
||||
// Applications), defined in RFC 5890, RFC 5891, RFC 5892, RFC 5893 and
|
||||
// RFC 5894.
|
||||
package idna // import "golang.org/x/net/idna"
|
||||
|
||||
import (
|
||||
"strings"
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
// TODO(nigeltao): specify when errors occur. For example, is ToASCII(".") or
|
||||
// ToASCII("foo\x00") an error? See also http://www.unicode.org/faq/idn.html#11
|
||||
|
||||
// acePrefix is the ASCII Compatible Encoding prefix.
|
||||
const acePrefix = "xn--"
|
||||
|
||||
// ToASCII converts a domain or domain label to its ASCII form. For example,
|
||||
// ToASCII("bücher.example.com") is "xn--bcher-kva.example.com", and
|
||||
// ToASCII("golang") is "golang".
|
||||
func ToASCII(s string) (string, error) {
|
||||
if ascii(s) {
|
||||
return s, nil
|
||||
}
|
||||
labels := strings.Split(s, ".")
|
||||
for i, label := range labels {
|
||||
if !ascii(label) {
|
||||
a, err := encode(acePrefix, label)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
labels[i] = a
|
||||
}
|
||||
}
|
||||
return strings.Join(labels, "."), nil
|
||||
}
|
||||
|
||||
// ToUnicode converts a domain or domain label to its Unicode form. For example,
|
||||
// ToUnicode("xn--bcher-kva.example.com") is "bücher.example.com", and
|
||||
// ToUnicode("golang") is "golang".
|
||||
func ToUnicode(s string) (string, error) {
|
||||
if !strings.Contains(s, acePrefix) {
|
||||
return s, nil
|
||||
}
|
||||
labels := strings.Split(s, ".")
|
||||
for i, label := range labels {
|
||||
if strings.HasPrefix(label, acePrefix) {
|
||||
u, err := decode(label[len(acePrefix):])
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
labels[i] = u
|
||||
}
|
||||
}
|
||||
return strings.Join(labels, "."), nil
|
||||
}
|
||||
|
||||
func ascii(s string) bool {
|
||||
for i := 0; i < len(s); i++ {
|
||||
if s[i] >= utf8.RuneSelf {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
43
src/vendor/golang_org/x/net/idna/idna_test.go
vendored
Normal file
43
src/vendor/golang_org/x/net/idna/idna_test.go
vendored
Normal file
@ -0,0 +1,43 @@
|
||||
// Copyright 2012 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 idna
|
||||
|
||||
import (
|
||||
"testing"
|
||||
)
|
||||
|
||||
var idnaTestCases = [...]struct {
|
||||
ascii, unicode string
|
||||
}{
|
||||
// Labels.
|
||||
{"books", "books"},
|
||||
{"xn--bcher-kva", "bücher"},
|
||||
|
||||
// Domains.
|
||||
{"foo--xn--bar.org", "foo--xn--bar.org"},
|
||||
{"golang.org", "golang.org"},
|
||||
{"example.xn--p1ai", "example.рф"},
|
||||
{"xn--czrw28b.tw", "商業.tw"},
|
||||
{"www.xn--mller-kva.de", "www.müller.de"},
|
||||
}
|
||||
|
||||
func TestIDNA(t *testing.T) {
|
||||
for _, tc := range idnaTestCases {
|
||||
if a, err := ToASCII(tc.unicode); err != nil {
|
||||
t.Errorf("ToASCII(%q): %v", tc.unicode, err)
|
||||
} else if a != tc.ascii {
|
||||
t.Errorf("ToASCII(%q): got %q, want %q", tc.unicode, a, tc.ascii)
|
||||
}
|
||||
|
||||
if u, err := ToUnicode(tc.ascii); err != nil {
|
||||
t.Errorf("ToUnicode(%q): %v", tc.ascii, err)
|
||||
} else if u != tc.unicode {
|
||||
t.Errorf("ToUnicode(%q): got %q, want %q", tc.ascii, u, tc.unicode)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// TODO(nigeltao): test errors, once we've specified when ToASCII and ToUnicode
|
||||
// return errors.
|
||||
200
src/vendor/golang_org/x/net/idna/punycode.go
vendored
Normal file
200
src/vendor/golang_org/x/net/idna/punycode.go
vendored
Normal file
@ -0,0 +1,200 @@
|
||||
// Copyright 2012 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 idna
|
||||
|
||||
// This file implements the Punycode algorithm from RFC 3492.
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"math"
|
||||
"strings"
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
// These parameter values are specified in section 5.
|
||||
//
|
||||
// All computation is done with int32s, so that overflow behavior is identical
|
||||
// regardless of whether int is 32-bit or 64-bit.
|
||||
const (
|
||||
base int32 = 36
|
||||
damp int32 = 700
|
||||
initialBias int32 = 72
|
||||
initialN int32 = 128
|
||||
skew int32 = 38
|
||||
tmax int32 = 26
|
||||
tmin int32 = 1
|
||||
)
|
||||
|
||||
// decode decodes a string as specified in section 6.2.
|
||||
func decode(encoded string) (string, error) {
|
||||
if encoded == "" {
|
||||
return "", nil
|
||||
}
|
||||
pos := 1 + strings.LastIndex(encoded, "-")
|
||||
if pos == 1 {
|
||||
return "", fmt.Errorf("idna: invalid label %q", encoded)
|
||||
}
|
||||
if pos == len(encoded) {
|
||||
return encoded[:len(encoded)-1], nil
|
||||
}
|
||||
output := make([]rune, 0, len(encoded))
|
||||
if pos != 0 {
|
||||
for _, r := range encoded[:pos-1] {
|
||||
output = append(output, r)
|
||||
}
|
||||
}
|
||||
i, n, bias := int32(0), initialN, initialBias
|
||||
for pos < len(encoded) {
|
||||
oldI, w := i, int32(1)
|
||||
for k := base; ; k += base {
|
||||
if pos == len(encoded) {
|
||||
return "", fmt.Errorf("idna: invalid label %q", encoded)
|
||||
}
|
||||
digit, ok := decodeDigit(encoded[pos])
|
||||
if !ok {
|
||||
return "", fmt.Errorf("idna: invalid label %q", encoded)
|
||||
}
|
||||
pos++
|
||||
i += digit * w
|
||||
if i < 0 {
|
||||
return "", fmt.Errorf("idna: invalid label %q", encoded)
|
||||
}
|
||||
t := k - bias
|
||||
if t < tmin {
|
||||
t = tmin
|
||||
} else if t > tmax {
|
||||
t = tmax
|
||||
}
|
||||
if digit < t {
|
||||
break
|
||||
}
|
||||
w *= base - t
|
||||
if w >= math.MaxInt32/base {
|
||||
return "", fmt.Errorf("idna: invalid label %q", encoded)
|
||||
}
|
||||
}
|
||||
x := int32(len(output) + 1)
|
||||
bias = adapt(i-oldI, x, oldI == 0)
|
||||
n += i / x
|
||||
i %= x
|
||||
if n > utf8.MaxRune || len(output) >= 1024 {
|
||||
return "", fmt.Errorf("idna: invalid label %q", encoded)
|
||||
}
|
||||
output = append(output, 0)
|
||||
copy(output[i+1:], output[i:])
|
||||
output[i] = n
|
||||
i++
|
||||
}
|
||||
return string(output), nil
|
||||
}
|
||||
|
||||
// encode encodes a string as specified in section 6.3 and prepends prefix to
|
||||
// the result.
|
||||
//
|
||||
// The "while h < length(input)" line in the specification becomes "for
|
||||
// remaining != 0" in the Go code, because len(s) in Go is in bytes, not runes.
|
||||
func encode(prefix, s string) (string, error) {
|
||||
output := make([]byte, len(prefix), len(prefix)+1+2*len(s))
|
||||
copy(output, prefix)
|
||||
delta, n, bias := int32(0), initialN, initialBias
|
||||
b, remaining := int32(0), int32(0)
|
||||
for _, r := range s {
|
||||
if r < 0x80 {
|
||||
b++
|
||||
output = append(output, byte(r))
|
||||
} else {
|
||||
remaining++
|
||||
}
|
||||
}
|
||||
h := b
|
||||
if b > 0 {
|
||||
output = append(output, '-')
|
||||
}
|
||||
for remaining != 0 {
|
||||
m := int32(0x7fffffff)
|
||||
for _, r := range s {
|
||||
if m > r && r >= n {
|
||||
m = r
|
||||
}
|
||||
}
|
||||
delta += (m - n) * (h + 1)
|
||||
if delta < 0 {
|
||||
return "", fmt.Errorf("idna: invalid label %q", s)
|
||||
}
|
||||
n = m
|
||||
for _, r := range s {
|
||||
if r < n {
|
||||
delta++
|
||||
if delta < 0 {
|
||||
return "", fmt.Errorf("idna: invalid label %q", s)
|
||||
}
|
||||
continue
|
||||
}
|
||||
if r > n {
|
||||
continue
|
||||
}
|
||||
q := delta
|
||||
for k := base; ; k += base {
|
||||
t := k - bias
|
||||
if t < tmin {
|
||||
t = tmin
|
||||
} else if t > tmax {
|
||||
t = tmax
|
||||
}
|
||||
if q < t {
|
||||
break
|
||||
}
|
||||
output = append(output, encodeDigit(t+(q-t)%(base-t)))
|
||||
q = (q - t) / (base - t)
|
||||
}
|
||||
output = append(output, encodeDigit(q))
|
||||
bias = adapt(delta, h+1, h == b)
|
||||
delta = 0
|
||||
h++
|
||||
remaining--
|
||||
}
|
||||
delta++
|
||||
n++
|
||||
}
|
||||
return string(output), nil
|
||||
}
|
||||
|
||||
func decodeDigit(x byte) (digit int32, ok bool) {
|
||||
switch {
|
||||
case '0' <= x && x <= '9':
|
||||
return int32(x - ('0' - 26)), true
|
||||
case 'A' <= x && x <= 'Z':
|
||||
return int32(x - 'A'), true
|
||||
case 'a' <= x && x <= 'z':
|
||||
return int32(x - 'a'), true
|
||||
}
|
||||
return 0, false
|
||||
}
|
||||
|
||||
func encodeDigit(digit int32) byte {
|
||||
switch {
|
||||
case 0 <= digit && digit < 26:
|
||||
return byte(digit + 'a')
|
||||
case 26 <= digit && digit < 36:
|
||||
return byte(digit + ('0' - 26))
|
||||
}
|
||||
panic("idna: internal error in punycode encoding")
|
||||
}
|
||||
|
||||
// adapt is the bias adaptation function specified in section 6.1.
|
||||
func adapt(delta, numPoints int32, firstTime bool) int32 {
|
||||
if firstTime {
|
||||
delta /= damp
|
||||
} else {
|
||||
delta /= 2
|
||||
}
|
||||
delta += delta / numPoints
|
||||
k := int32(0)
|
||||
for delta > ((base-tmin)*tmax)/2 {
|
||||
delta /= base - tmin
|
||||
k += base
|
||||
}
|
||||
return k + (base-tmin+1)*delta/(delta+skew)
|
||||
}
|
||||
198
src/vendor/golang_org/x/net/idna/punycode_test.go
vendored
Normal file
198
src/vendor/golang_org/x/net/idna/punycode_test.go
vendored
Normal file
@ -0,0 +1,198 @@
|
||||
// Copyright 2012 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 idna
|
||||
|
||||
import (
|
||||
"strings"
|
||||
"testing"
|
||||
)
|
||||
|
||||
var punycodeTestCases = [...]struct {
|
||||
s, encoded string
|
||||
}{
|
||||
{"", ""},
|
||||
{"-", "--"},
|
||||
{"-a", "-a-"},
|
||||
{"-a-", "-a--"},
|
||||
{"a", "a-"},
|
||||
{"a-", "a--"},
|
||||
{"a-b", "a-b-"},
|
||||
{"books", "books-"},
|
||||
{"bücher", "bcher-kva"},
|
||||
{"Hello世界", "Hello-ck1hg65u"},
|
||||
{"ü", "tda"},
|
||||
{"üý", "tdac"},
|
||||
|
||||
// The test cases below come from RFC 3492 section 7.1 with Errata 3026.
|
||||
{
|
||||
// (A) Arabic (Egyptian).
|
||||
"\u0644\u064A\u0647\u0645\u0627\u0628\u062A\u0643\u0644" +
|
||||
"\u0645\u0648\u0634\u0639\u0631\u0628\u064A\u061F",
|
||||
"egbpdaj6bu4bxfgehfvwxn",
|
||||
},
|
||||
{
|
||||
// (B) Chinese (simplified).
|
||||
"\u4ED6\u4EEC\u4E3A\u4EC0\u4E48\u4E0D\u8BF4\u4E2D\u6587",
|
||||
"ihqwcrb4cv8a8dqg056pqjye",
|
||||
},
|
||||
{
|
||||
// (C) Chinese (traditional).
|
||||
"\u4ED6\u5011\u7232\u4EC0\u9EBD\u4E0D\u8AAA\u4E2D\u6587",
|
||||
"ihqwctvzc91f659drss3x8bo0yb",
|
||||
},
|
||||
{
|
||||
// (D) Czech.
|
||||
"\u0050\u0072\u006F\u010D\u0070\u0072\u006F\u0073\u0074" +
|
||||
"\u011B\u006E\u0065\u006D\u006C\u0075\u0076\u00ED\u010D" +
|
||||
"\u0065\u0073\u006B\u0079",
|
||||
"Proprostnemluvesky-uyb24dma41a",
|
||||
},
|
||||
{
|
||||
// (E) Hebrew.
|
||||
"\u05DC\u05DE\u05D4\u05D4\u05DD\u05E4\u05E9\u05D5\u05D8" +
|
||||
"\u05DC\u05D0\u05DE\u05D3\u05D1\u05E8\u05D9\u05DD\u05E2" +
|
||||
"\u05D1\u05E8\u05D9\u05EA",
|
||||
"4dbcagdahymbxekheh6e0a7fei0b",
|
||||
},
|
||||
{
|
||||
// (F) Hindi (Devanagari).
|
||||
"\u092F\u0939\u0932\u094B\u0917\u0939\u093F\u0928\u094D" +
|
||||
"\u0926\u0940\u0915\u094D\u092F\u094B\u0902\u0928\u0939" +
|
||||
"\u0940\u0902\u092C\u094B\u0932\u0938\u0915\u0924\u0947" +
|
||||
"\u0939\u0948\u0902",
|
||||
"i1baa7eci9glrd9b2ae1bj0hfcgg6iyaf8o0a1dig0cd",
|
||||
},
|
||||
{
|
||||
// (G) Japanese (kanji and hiragana).
|
||||
"\u306A\u305C\u307F\u3093\u306A\u65E5\u672C\u8A9E\u3092" +
|
||||
"\u8A71\u3057\u3066\u304F\u308C\u306A\u3044\u306E\u304B",
|
||||
"n8jok5ay5dzabd5bym9f0cm5685rrjetr6pdxa",
|
||||
},
|
||||
{
|
||||
// (H) Korean (Hangul syllables).
|
||||
"\uC138\uACC4\uC758\uBAA8\uB4E0\uC0AC\uB78C\uB4E4\uC774" +
|
||||
"\uD55C\uAD6D\uC5B4\uB97C\uC774\uD574\uD55C\uB2E4\uBA74" +
|
||||
"\uC5BC\uB9C8\uB098\uC88B\uC744\uAE4C",
|
||||
"989aomsvi5e83db1d2a355cv1e0vak1dwrv93d5xbh15a0dt30a5j" +
|
||||
"psd879ccm6fea98c",
|
||||
},
|
||||
{
|
||||
// (I) Russian (Cyrillic).
|
||||
"\u043F\u043E\u0447\u0435\u043C\u0443\u0436\u0435\u043E" +
|
||||
"\u043D\u0438\u043D\u0435\u0433\u043E\u0432\u043E\u0440" +
|
||||
"\u044F\u0442\u043F\u043E\u0440\u0443\u0441\u0441\u043A" +
|
||||
"\u0438",
|
||||
"b1abfaaepdrnnbgefbadotcwatmq2g4l",
|
||||
},
|
||||
{
|
||||
// (J) Spanish.
|
||||
"\u0050\u006F\u0072\u0071\u0075\u00E9\u006E\u006F\u0070" +
|
||||
"\u0075\u0065\u0064\u0065\u006E\u0073\u0069\u006D\u0070" +
|
||||
"\u006C\u0065\u006D\u0065\u006E\u0074\u0065\u0068\u0061" +
|
||||
"\u0062\u006C\u0061\u0072\u0065\u006E\u0045\u0073\u0070" +
|
||||
"\u0061\u00F1\u006F\u006C",
|
||||
"PorqunopuedensimplementehablarenEspaol-fmd56a",
|
||||
},
|
||||
{
|
||||
// (K) Vietnamese.
|
||||
"\u0054\u1EA1\u0069\u0073\u0061\u006F\u0068\u1ECD\u006B" +
|
||||
"\u0068\u00F4\u006E\u0067\u0074\u0068\u1EC3\u0063\u0068" +
|
||||
"\u1EC9\u006E\u00F3\u0069\u0074\u0069\u1EBF\u006E\u0067" +
|
||||
"\u0056\u0069\u1EC7\u0074",
|
||||
"TisaohkhngthchnitingVit-kjcr8268qyxafd2f1b9g",
|
||||
},
|
||||
{
|
||||
// (L) 3<nen>B<gumi><kinpachi><sensei>.
|
||||
"\u0033\u5E74\u0042\u7D44\u91D1\u516B\u5148\u751F",
|
||||
"3B-ww4c5e180e575a65lsy2b",
|
||||
},
|
||||
{
|
||||
// (M) <amuro><namie>-with-SUPER-MONKEYS.
|
||||
"\u5B89\u5BA4\u5948\u7F8E\u6075\u002D\u0077\u0069\u0074" +
|
||||
"\u0068\u002D\u0053\u0055\u0050\u0045\u0052\u002D\u004D" +
|
||||
"\u004F\u004E\u004B\u0045\u0059\u0053",
|
||||
"-with-SUPER-MONKEYS-pc58ag80a8qai00g7n9n",
|
||||
},
|
||||
{
|
||||
// (N) Hello-Another-Way-<sorezore><no><basho>.
|
||||
"\u0048\u0065\u006C\u006C\u006F\u002D\u0041\u006E\u006F" +
|
||||
"\u0074\u0068\u0065\u0072\u002D\u0057\u0061\u0079\u002D" +
|
||||
"\u305D\u308C\u305E\u308C\u306E\u5834\u6240",
|
||||
"Hello-Another-Way--fc4qua05auwb3674vfr0b",
|
||||
},
|
||||
{
|
||||
// (O) <hitotsu><yane><no><shita>2.
|
||||
"\u3072\u3068\u3064\u5C4B\u6839\u306E\u4E0B\u0032",
|
||||
"2-u9tlzr9756bt3uc0v",
|
||||
},
|
||||
{
|
||||
// (P) Maji<de>Koi<suru>5<byou><mae>
|
||||
"\u004D\u0061\u006A\u0069\u3067\u004B\u006F\u0069\u3059" +
|
||||
"\u308B\u0035\u79D2\u524D",
|
||||
"MajiKoi5-783gue6qz075azm5e",
|
||||
},
|
||||
{
|
||||
// (Q) <pafii>de<runba>
|
||||
"\u30D1\u30D5\u30A3\u30FC\u0064\u0065\u30EB\u30F3\u30D0",
|
||||
"de-jg4avhby1noc0d",
|
||||
},
|
||||
{
|
||||
// (R) <sono><supiido><de>
|
||||
"\u305D\u306E\u30B9\u30D4\u30FC\u30C9\u3067",
|
||||
"d9juau41awczczp",
|
||||
},
|
||||
{
|
||||
// (S) -> $1.00 <-
|
||||
"\u002D\u003E\u0020\u0024\u0031\u002E\u0030\u0030\u0020" +
|
||||
"\u003C\u002D",
|
||||
"-> $1.00 <--",
|
||||
},
|
||||
}
|
||||
|
||||
func TestPunycode(t *testing.T) {
|
||||
for _, tc := range punycodeTestCases {
|
||||
if got, err := decode(tc.encoded); err != nil {
|
||||
t.Errorf("decode(%q): %v", tc.encoded, err)
|
||||
} else if got != tc.s {
|
||||
t.Errorf("decode(%q): got %q, want %q", tc.encoded, got, tc.s)
|
||||
}
|
||||
|
||||
if got, err := encode("", tc.s); err != nil {
|
||||
t.Errorf(`encode("", %q): %v`, tc.s, err)
|
||||
} else if got != tc.encoded {
|
||||
t.Errorf(`encode("", %q): got %q, want %q`, tc.s, got, tc.encoded)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
var punycodeErrorTestCases = [...]string{
|
||||
"decode -", // A sole '-' is invalid.
|
||||
"decode foo\x00bar", // '\x00' is not in [0-9A-Za-z].
|
||||
"decode foo#bar", // '#' is not in [0-9A-Za-z].
|
||||
"decode foo\u00A3bar", // '\u00A3' is not in [0-9A-Za-z].
|
||||
"decode 9", // "9a" decodes to codepoint \u00A3; "9" is truncated.
|
||||
"decode 99999a", // "99999a" decodes to codepoint \U0048A3C1, which is > \U0010FFFF.
|
||||
"decode 9999999999a", // "9999999999a" overflows the int32 calculation.
|
||||
|
||||
"encode " + strings.Repeat("x", 65536) + "\uff00", // int32 overflow.
|
||||
}
|
||||
|
||||
func TestPunycodeErrors(t *testing.T) {
|
||||
for _, tc := range punycodeErrorTestCases {
|
||||
var err error
|
||||
switch {
|
||||
case strings.HasPrefix(tc, "decode "):
|
||||
_, err = decode(tc[7:])
|
||||
case strings.HasPrefix(tc, "encode "):
|
||||
_, err = encode("", tc[7:])
|
||||
}
|
||||
if err == nil {
|
||||
if len(tc) > 256 {
|
||||
tc = tc[:100] + "..." + tc[len(tc)-100:]
|
||||
}
|
||||
t.Errorf("no error for %s", tc)
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user