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extendable config format

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This commit is contained in:
Darien Raymond 2018-02-14 23:57:40 +01:00
parent 94125236e6
commit 2a07838bb9
No known key found for this signature in database
GPG Key ID: 7251FFA14BB18169
6 changed files with 129 additions and 117 deletions
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87
config.go Normal file
View File

@ -0,0 +1,87 @@
package core
import (
"io"
"strings"
"github.com/golang/protobuf/proto"
"v2ray.com/core/common"
"v2ray.com/core/common/buf"
)
type ConfigFormat struct {
Name string
Extension []string
Loader ConfigLoader
}
// ConfigLoader is an utility to load V2Ray config from external source.
type ConfigLoader func(input io.Reader) (*Config, error)
var (
configLoaderByName = make(map[string]*ConfigFormat)
configLoaderByExt = make(map[string]*ConfigFormat)
)
// RegisterConfigLoader add a new ConfigLoader.
func RegisterConfigLoader(format *ConfigFormat) error {
name := strings.ToLower(format.Name)
if _, found := configLoaderByName[name]; found {
return newError(format.Name, " already registered.")
}
configLoaderByName[name] = format
for _, ext := range format.Extension {
lext := strings.ToLower(ext)
if f, found := configLoaderByExt[lext]; found {
return newError(ext, " already registered to ", f.Name)
}
configLoaderByExt[lext] = format
}
return nil
}
func getExtension(filename string) string {
idx := strings.LastIndexByte(filename, '.')
if idx == -1 {
return ""
}
return filename[idx+1:]
}
// LoadConfig loads config with given format from given source.
func LoadConfig(formatName string, filename string, input io.Reader) (*Config, error) {
ext := getExtension(filename)
if len(ext) > 0 {
if f, found := configLoaderByExt[ext]; found {
return f.Loader(input)
}
}
if f, found := configLoaderByName[formatName]; found {
return f.Loader(input)
}
return nil, newError("Unable to load config in ", formatName).AtWarning()
}
func loadProtobufConfig(input io.Reader) (*Config, error) {
config := new(Config)
data, err := buf.ReadAllToBytes(input)
if err != nil {
return nil, err
}
if err := proto.Unmarshal(data, config); err != nil {
return nil, err
}
return config, nil
}
func init() {
common.Must(RegisterConfigLoader(&ConfigFormat{
Name: "Protobuf",
Extension: []string{"pb"},
Loader: loadProtobufConfig,
}))
}

79
config.pb.go
View File

@ -17,28 +17,6 @@ var _ = math.Inf
// proto package needs to be updated.
const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
// Configuration serialization format.
type ConfigFormat int32
const (
ConfigFormat_Protobuf ConfigFormat = 0
ConfigFormat_JSON ConfigFormat = 1
)
var ConfigFormat_name = map[int32]string{
0: "Protobuf",
1: "JSON",
}
var ConfigFormat_value = map[string]int32{
"Protobuf": 0,
"JSON": 1,
}
func (x ConfigFormat) String() string {
return proto.EnumName(ConfigFormat_name, int32(x))
}
func (ConfigFormat) EnumDescriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
// Master config of V2Ray. V2Ray takes this config as input and functions accordingly.
type Config struct {
// Inbound handler configurations. Must have at least one item.
@ -186,39 +164,36 @@ func init() {
proto.RegisterType((*Config)(nil), "v2ray.core.Config")
proto.RegisterType((*InboundHandlerConfig)(nil), "v2ray.core.InboundHandlerConfig")
proto.RegisterType((*OutboundHandlerConfig)(nil), "v2ray.core.OutboundHandlerConfig")
proto.RegisterEnum("v2ray.core.ConfigFormat", ConfigFormat_name, ConfigFormat_value)
}
func init() { proto.RegisterFile("v2ray.com/core/config.proto", fileDescriptor0) }
var fileDescriptor0 = []byte{
// 436 bytes of a gzipped FileDescriptorProto
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// 405 bytes of a gzipped FileDescriptorProto
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}

6
config.proto
View File

@ -9,12 +9,6 @@ option java_multiple_files = true;
import "v2ray.com/core/common/serial/typed_message.proto";
import "v2ray.com/core/transport/config.proto";
// Configuration serialization format.
enum ConfigFormat {
Protobuf = 0;
JSON = 1;
}
// Master config of V2Ray. V2Ray takes this config as input and functions accordingly.
message Config {
// Inbound handler configurations. Must have at least one item.

46
loader.go
View File

@ -1,46 +0,0 @@
package core
import (
"io"
"v2ray.com/core/common"
"v2ray.com/core/common/buf"
"github.com/golang/protobuf/proto"
)
// ConfigLoader is an utility to load V2Ray config from external source.
type ConfigLoader func(input io.Reader) (*Config, error)
var configLoaderCache = make(map[ConfigFormat]ConfigLoader)
// RegisterConfigLoader add a new ConfigLoader.
func RegisterConfigLoader(format ConfigFormat, loader ConfigLoader) error {
configLoaderCache[format] = loader
return nil
}
// LoadConfig loads config with given format from given source.
func LoadConfig(format ConfigFormat, input io.Reader) (*Config, error) {
loader, found := configLoaderCache[format]
if !found {
return nil, newError(ConfigFormat_name[int32(format)], " is not loadable.").AtWarning()
}
return loader(input)
}
func loadProtobufConfig(input io.Reader) (*Config, error) {
config := new(Config)
data, err := buf.ReadAllToBytes(input)
if err != nil {
return nil, err
}
if err := proto.Unmarshal(data, config); err != nil {
return nil, err
}
return config, nil
}
func init() {
common.Must(RegisterConfigLoader(ConfigFormat_Protobuf, loadProtobufConfig))
}

18
main/config_json.go
View File

@ -45,7 +45,7 @@ func jsonToProto(input io.Reader) (*core.Config, error) {
var config *core.Config
loadTask := signal.ExecuteAsync(func() error {
c, err := core.LoadConfig(core.ConfigFormat_Protobuf, stdoutReader)
c, err := core.LoadConfig("protobuf", "", stdoutReader)
if err != nil {
return err
}
@ -65,11 +65,15 @@ func jsonToProto(input io.Reader) (*core.Config, error) {
}
func init() {
common.Must(core.RegisterConfigLoader(core.ConfigFormat_JSON, func(input io.Reader) (*core.Config, error) {
config, err := jsonToProto(input)
if err != nil {
return nil, newError("failed to execute v2ctl to convert config file.").Base(err).AtWarning()
}
return config, nil
common.Must(core.RegisterConfigLoader(&core.ConfigFormat{
Name: "JSON",
Extension: []string{"json"},
Loader: func(input io.Reader) (*core.Config, error) {
config, err := jsonToProto(input)
if err != nil {
return nil, newError("failed to execute v2ctl to convert config file.").Base(err).AtWarning()
}
return config, nil
},
}))
}

10
main/main.go
View File

@ -49,14 +49,12 @@ func getConfigFilePath() string {
return ""
}
func GetConfigFormat() core.ConfigFormat {
func GetConfigFormat() string {
switch strings.ToLower(*format) {
case "json":
return core.ConfigFormat_JSON
case "pb", "protobuf":
return core.ConfigFormat_Protobuf
return "protobuf"
default:
return core.ConfigFormat_JSON
return "json"
}
}
@ -74,7 +72,7 @@ func startV2Ray() (core.Server, error) {
defer file.Close()
configInput = file
}
config, err := core.LoadConfig(GetConfigFormat(), configInput)
config, err := core.LoadConfig(GetConfigFormat(), configFile, configInput)
if err != nil {
return nil, newError("failed to read config file: ", configFile).Base(err)
}