mirror of
https://github.com/SagerNet/sing-box.git
synced 2024-11-09 18:43:14 +00:00
Add comment filter for config
This commit is contained in:
parent
ac539ace70
commit
87bc292296
128
common/json/comment.go
Normal file
128
common/json/comment.go
Normal file
|
@ -0,0 +1,128 @@
|
|||
package json
|
||||
|
||||
import (
|
||||
"bufio"
|
||||
"io"
|
||||
)
|
||||
|
||||
// kanged from v2ray
|
||||
|
||||
type commentFilterState = byte
|
||||
|
||||
const (
|
||||
commentFilterStateContent commentFilterState = iota
|
||||
commentFilterStateEscape
|
||||
commentFilterStateDoubleQuote
|
||||
commentFilterStateDoubleQuoteEscape
|
||||
commentFilterStateSingleQuote
|
||||
commentFilterStateSingleQuoteEscape
|
||||
commentFilterStateComment
|
||||
commentFilterStateSlash
|
||||
commentFilterStateMultilineComment
|
||||
commentFilterStateMultilineCommentStar
|
||||
)
|
||||
|
||||
type CommentFilter struct {
|
||||
br *bufio.Reader
|
||||
state commentFilterState
|
||||
}
|
||||
|
||||
func NewCommentFilter(reader io.Reader) io.Reader {
|
||||
return &CommentFilter{br: bufio.NewReader(reader)}
|
||||
}
|
||||
|
||||
func (v *CommentFilter) Read(b []byte) (int, error) {
|
||||
p := b[:0]
|
||||
for len(p) < len(b)-2 {
|
||||
x, err := v.br.ReadByte()
|
||||
if err != nil {
|
||||
if len(p) == 0 {
|
||||
return 0, err
|
||||
}
|
||||
return len(p), nil
|
||||
}
|
||||
switch v.state {
|
||||
case commentFilterStateContent:
|
||||
switch x {
|
||||
case '"':
|
||||
v.state = commentFilterStateDoubleQuote
|
||||
p = append(p, x)
|
||||
case '\'':
|
||||
v.state = commentFilterStateSingleQuote
|
||||
p = append(p, x)
|
||||
case '\\':
|
||||
v.state = commentFilterStateEscape
|
||||
case '#':
|
||||
v.state = commentFilterStateComment
|
||||
case '/':
|
||||
v.state = commentFilterStateSlash
|
||||
default:
|
||||
p = append(p, x)
|
||||
}
|
||||
case commentFilterStateEscape:
|
||||
p = append(p, '\\', x)
|
||||
v.state = commentFilterStateContent
|
||||
case commentFilterStateDoubleQuote:
|
||||
switch x {
|
||||
case '"':
|
||||
v.state = commentFilterStateContent
|
||||
p = append(p, x)
|
||||
case '\\':
|
||||
v.state = commentFilterStateDoubleQuoteEscape
|
||||
default:
|
||||
p = append(p, x)
|
||||
}
|
||||
case commentFilterStateDoubleQuoteEscape:
|
||||
p = append(p, '\\', x)
|
||||
v.state = commentFilterStateDoubleQuote
|
||||
case commentFilterStateSingleQuote:
|
||||
switch x {
|
||||
case '\'':
|
||||
v.state = commentFilterStateContent
|
||||
p = append(p, x)
|
||||
case '\\':
|
||||
v.state = commentFilterStateSingleQuoteEscape
|
||||
default:
|
||||
p = append(p, x)
|
||||
}
|
||||
case commentFilterStateSingleQuoteEscape:
|
||||
p = append(p, '\\', x)
|
||||
v.state = commentFilterStateSingleQuote
|
||||
case commentFilterStateComment:
|
||||
if x == '\n' {
|
||||
v.state = commentFilterStateContent
|
||||
p = append(p, '\n')
|
||||
}
|
||||
case commentFilterStateSlash:
|
||||
switch x {
|
||||
case '/':
|
||||
v.state = commentFilterStateComment
|
||||
case '*':
|
||||
v.state = commentFilterStateMultilineComment
|
||||
default:
|
||||
p = append(p, '/', x)
|
||||
}
|
||||
case commentFilterStateMultilineComment:
|
||||
switch x {
|
||||
case '*':
|
||||
v.state = commentFilterStateMultilineCommentStar
|
||||
case '\n':
|
||||
p = append(p, '\n')
|
||||
}
|
||||
case commentFilterStateMultilineCommentStar:
|
||||
switch x {
|
||||
case '/':
|
||||
v.state = commentFilterStateContent
|
||||
case '*':
|
||||
// Stay
|
||||
case '\n':
|
||||
p = append(p, '\n')
|
||||
default:
|
||||
v.state = commentFilterStateMultilineComment
|
||||
}
|
||||
default:
|
||||
panic("Unknown state.")
|
||||
}
|
||||
}
|
||||
return len(p), nil
|
||||
}
|
|
@ -20,7 +20,7 @@ type _Options struct {
|
|||
type Options _Options
|
||||
|
||||
func (o *Options) UnmarshalJSON(content []byte) error {
|
||||
decoder := json.NewDecoder(bytes.NewReader(content))
|
||||
decoder := json.NewDecoder(json.NewCommentFilter(bytes.NewReader(content)))
|
||||
decoder.DisallowUnknownFields()
|
||||
err := decoder.Decode((*_Options)(o))
|
||||
if err == nil {
|
||||
|
|
Loading…
Reference in a new issue