mirror of
https://github.com/v2fly/v2ray-core.git
synced 2024-09-06 03:54:22 -04:00
81 lines
1.6 KiB
Go
81 lines
1.6 KiB
Go
package serial
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import (
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"bytes"
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"encoding/json"
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"io"
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"v2ray.com/core"
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"v2ray.com/core/common/errors"
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"v2ray.com/core/infra/conf"
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json_reader "v2ray.com/core/infra/conf/json"
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)
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type offset struct {
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line int
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char int
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}
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func findOffset(b []byte, o int) *offset {
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if o >= len(b) || o < 0 {
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return nil
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}
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line := 1
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char := 0
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for i, x := range b {
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if i == o {
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break
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}
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if x == '\n' {
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line++
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char = 0
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} else {
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char++
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}
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}
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return &offset{line: line, char: char}
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}
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func DecodeJSONConfig(reader io.Reader) (*conf.Config, error) {
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jsonConfig := &conf.Config{}
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jsonContent := bytes.NewBuffer(make([]byte, 0, 10240))
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jsonReader := io.TeeReader(&json_reader.Reader{
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Reader: reader,
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}, jsonContent)
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decoder := json.NewDecoder(jsonReader)
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if err := decoder.Decode(jsonConfig); err != nil {
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var pos *offset
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cause := errors.Cause(err)
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switch tErr := cause.(type) {
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case *json.SyntaxError:
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pos = findOffset(jsonContent.Bytes(), int(tErr.Offset))
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case *json.UnmarshalTypeError:
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pos = findOffset(jsonContent.Bytes(), int(tErr.Offset))
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}
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if pos != nil {
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return nil, newError("failed to read config file at line ", pos.line, " char ", pos.char).Base(err)
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}
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return nil, newError("failed to read config file").Base(err)
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}
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return jsonConfig, nil
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}
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func LoadJSONConfig(reader io.Reader) (*core.Config, error) {
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jsonConfig, err := DecodeJSONConfig(reader)
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if err != nil {
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return nil, err
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}
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pbConfig, err := jsonConfig.Build()
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if err != nil {
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return nil, newError("failed to parse json config").Base(err)
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}
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return pbConfig, nil
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}
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