fix: fix dns on linux (#336)

* fix: fix dns on linux

* feat: detect run in Github action or not to setup DNS

vendor/github.com/go-json-experiment/json/internal/jsonwire/wire.go

@@ -0,0 +1,169 @@
+// Copyright 2023 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 jsonwire implements stateless functionality for handling JSON text.
+package jsonwire
+
+import (
+	"cmp"
+	"errors"
+	"strconv"
+	"strings"
+	"unicode"
+	"unicode/utf16"
+	"unicode/utf8"
+)
+
+// TrimSuffixWhitespace trims JSON from the end of b.
+func TrimSuffixWhitespace(b []byte) []byte {
+	// NOTE: The arguments and logic are kept simple to keep this inlinable.
+	n := len(b) - 1
+	for n >= 0 && (b[n] == ' ' || b[n] == '\t' || b[n] == '\r' || b[n] == '\n') {
+		n--
+	}
+	return b[:n+1]
+}
+
+// TrimSuffixString trims a valid JSON string at the end of b.
+// The behavior is undefined if there is not a valid JSON string present.
+func TrimSuffixString(b []byte) []byte {
+	// NOTE: The arguments and logic are kept simple to keep this inlinable.
+	if len(b) > 0 && b[len(b)-1] == '"' {
+		b = b[:len(b)-1]
+	}
+	for len(b) >= 2 && !(b[len(b)-1] == '"' && b[len(b)-2] != '\\') {
+		b = b[:len(b)-1] // trim all characters except an unescaped quote
+	}
+	if len(b) > 0 && b[len(b)-1] == '"' {
+		b = b[:len(b)-1]
+	}
+	return b
+}
+
+// HasSuffixByte reports whether b ends with c.
+func HasSuffixByte(b []byte, c byte) bool {
+	// NOTE: The arguments and logic are kept simple to keep this inlinable.
+	return len(b) > 0 && b[len(b)-1] == c
+}
+
+// TrimSuffixByte removes c from the end of b if it is present.
+func TrimSuffixByte(b []byte, c byte) []byte {
+	// NOTE: The arguments and logic are kept simple to keep this inlinable.
+	if len(b) > 0 && b[len(b)-1] == c {
+		return b[:len(b)-1]
+	}
+	return b
+}
+
+// QuoteRune quotes the first rune in the input.
+func QuoteRune[Bytes ~[]byte | ~string](b Bytes) string {
+	r, n := utf8.DecodeRuneInString(string(truncateMaxUTF8(b)))
+	if r == utf8.RuneError && n == 1 {
+		return `'\x` + strconv.FormatUint(uint64(b[0]), 16) + `'`
+	}
+	return strconv.QuoteRune(r)
+}
+
+// CompareUTF16 lexicographically compares x to y according
+// to the UTF-16 codepoints of the UTF-8 encoded input strings.
+// This implements the ordering specified in RFC 8785, section 3.2.3.
+func CompareUTF16[Bytes ~[]byte | ~string](x, y Bytes) int {
+	// NOTE: This is an optimized, mostly allocation-free implementation
+	// of CompareUTF16Simple in wire_test.go. FuzzCompareUTF16 verifies that the
+	// two implementations agree on the result of comparing any two strings.
+	isUTF16Self := func(r rune) bool {
+		return ('\u0000' <= r && r <= '\uD7FF') || ('\uE000' <= r && r <= '\uFFFF')
+	}
+
+	var invalidUTF8 bool
+	x0, y0 := x, y
+	for {
+		if len(x) == 0 || len(y) == 0 {
+			if len(x) == len(y) && invalidUTF8 {
+				return strings.Compare(string(x0), string(y0))
+			}
+			return cmp.Compare(len(x), len(y))
+		}
+
+		// ASCII fast-path.
+		if x[0] < utf8.RuneSelf || y[0] < utf8.RuneSelf {
+			if x[0] != y[0] {
+				return cmp.Compare(x[0], y[0])
+			}
+			x, y = x[1:], y[1:]
+			continue
+		}
+
+		// Decode next pair of runes as UTF-8.
+		rx, nx := utf8.DecodeRuneInString(string(truncateMaxUTF8(x)))
+		ry, ny := utf8.DecodeRuneInString(string(truncateMaxUTF8(y)))
+
+		selfx := isUTF16Self(rx)
+		selfy := isUTF16Self(ry)
+		switch {
+		// The x rune is a single UTF-16 codepoint, while
+		// the y rune is a surrogate pair of UTF-16 codepoints.
+		case selfx && !selfy:
+			ry, _ = utf16.EncodeRune(ry)
+		// The y rune is a single UTF-16 codepoint, while
+		// the x rune is a surrogate pair of UTF-16 codepoints.
+		case selfy && !selfx:
+			rx, _ = utf16.EncodeRune(rx)
+		}
+		if rx != ry {
+			return cmp.Compare(rx, ry)
+		}
+		invalidUTF8 = invalidUTF8 || (rx == utf8.RuneError && nx == 1) || (ry == utf8.RuneError && ny == 1)
+		x, y = x[nx:], y[ny:]
+	}
+}
+
+// truncateMaxUTF8 truncates b such it contains at least one rune.
+//
+// The utf8 package currently lacks generic variants, which complicates
+// generic functions that operates on either []byte or string.
+// As a hack, we always call the utf8 function operating on strings,
+// but always truncate the input such that the result is identical.
+//
+// Example usage:
+//
+//	utf8.DecodeRuneInString(string(truncateMaxUTF8(b)))
+//
+// Converting a []byte to a string is stack allocated since
+// truncateMaxUTF8 guarantees that the []byte is short.
+func truncateMaxUTF8[Bytes ~[]byte | ~string](b Bytes) Bytes {
+	// TODO(https://go.dev/issue/56948): Remove this function and
+	// instead directly call generic utf8 functions wherever used.
+	if len(b) > utf8.UTFMax {
+		return b[:utf8.UTFMax]
+	}
+	return b
+}
+
+// NewError and ErrInvalidUTF8 are injected by the "jsontext" package,
+// so that these error types use the jsontext.SyntacticError type.
+var (
+	NewError       = errors.New
+	ErrInvalidUTF8 = errors.New("invalid UTF-8 within string")
+)
+
+func NewInvalidCharacterError[Bytes ~[]byte | ~string](prefix Bytes, where string) error {
+	what := QuoteRune(prefix)
+	return NewError("invalid character " + what + " " + where)
+}
+
+func NewInvalidEscapeSequenceError[Bytes ~[]byte | ~string](what Bytes) error {
+	label := "escape sequence"
+	if len(what) > 6 {
+		label = "surrogate pair"
+	}
+	needEscape := strings.IndexFunc(string(what), func(r rune) bool {
+		return r == '`' || r == utf8.RuneError || unicode.IsSpace(r) || !unicode.IsPrint(r)
+	}) >= 0
+	if needEscape {
+		return NewError("invalid " + label + " " + strconv.Quote(string(what)) + " within string")
+	} else {
+		return NewError("invalid " + label + " `" + string(what) + "` within string")
+	}
+}