x

app.go

@@ -1,13 +1,16 @@
-package protoc_gen_kit
+package kit
 
 import (
 	"context"
 	"errors"
-	"git.diulo.com/mogfee/protoc-gen-kit/log"
+	"git.diulo.com/mogfee/kit/log"
-	"git.diulo.com/mogfee/protoc-gen-kit/registry"
+	"git.diulo.com/mogfee/kit/registry"
-	"git.diulo.com/mogfee/protoc-gen-kit/transport"
+	"git.diulo.com/mogfee/kit/transport"
 	"github.com/google/uuid"
 	"golang.org/x/sync/errgroup"
+
+	_ "git.diulo.com/mogfee/kit/encoding/form"
+	_ "git.diulo.com/mogfee/kit/encoding/json"
 	"os"
 	"os/signal"
 	"sync"

cmd/kit/main.go

@@ -1,7 +1,7 @@
 package main
 
 import (
-	protogen2 "git.diulo.com/mogfee/protoc-gen-kit/protogen"
+	protogen2 "git.diulo.com/mogfee/kit/protogen"
 	"google.golang.org/protobuf/compiler/protogen"
 )
 
@@ -24,9 +24,9 @@ func (u *Kit) Generate(plugin *protogen.Plugin) error {
 		return nil
 	}
 	u.addImports("context")
-	u.addImports("git.diulo.com/mogfee/protoc-gen-kit/middleware")
+	u.addImports("git.diulo.com/mogfee/kit/middleware")
-	u.addImports("git.diulo.com/mogfee/protoc-gen-kit/pkg/response")
+	u.addImports("git.diulo.com/mogfee/kit/pkg/response")
-	u.addImports("git.diulo.com/mogfee/protoc-gen-kit/pkg/errors")
+	u.addImports("git.diulo.com/mogfee/kit/pkg/errors")
 	u.addImports("github.com/gin-gonic/gin")
 	for _, f := range plugin.Files {
 		if len(f.Services) == 0 {

cmd/ts/main.go

@@ -2,7 +2,7 @@ package main
 
 import (
 	"fmt"
-	protogen2 "git.diulo.com/mogfee/protoc-gen-kit/protogen"
+	protogen2 "git.diulo.com/mogfee/kit/protogen"
 	"google.golang.org/protobuf/compiler/protogen"
 	"strings"
 )

encoding/form/proto_decode.go

@@ -0,0 +1,224 @@
+package form
+
+import (
+	"encoding/base64"
+	"fmt"
+	"net/url"
+	"reflect"
+	"strconv"
+	"strings"
+
+	"google.golang.org/protobuf/proto"
+	"google.golang.org/protobuf/reflect/protoreflect"
+	"google.golang.org/protobuf/types/known/fieldmaskpb"
+)
+
+// EncodeValues encode a message into url values.
+func EncodeValues(msg interface{}) (url.Values, error) {
+	if msg == nil || (reflect.ValueOf(msg).Kind() == reflect.Ptr && reflect.ValueOf(msg).IsNil()) {
+		return url.Values{}, nil
+	}
+	if v, ok := msg.(proto.Message); ok {
+		u := make(url.Values)
+		err := encodeByField(u, "", v.ProtoReflect())
+		if err != nil {
+			return nil, err
+		}
+		return u, nil
+	}
+	return encoder.Encode(msg)
+}
+
+func encodeByField(u url.Values, path string, m protoreflect.Message) (finalErr error) {
+	m.Range(func(fd protoreflect.FieldDescriptor, v protoreflect.Value) bool {
+		var (
+			key     string
+			newPath string
+		)
+		if fd.HasJSONName() {
+			key = fd.JSONName()
+		} else {
+			key = fd.TextName()
+		}
+		if path == "" {
+			newPath = key
+		} else {
+			newPath = path + "." + key
+		}
+		if of := fd.ContainingOneof(); of != nil {
+			if f := m.WhichOneof(of); f != nil && f != fd {
+				return true
+			}
+		}
+		switch {
+		case fd.IsList():
+			if v.List().Len() > 0 {
+				list, err := encodeRepeatedField(fd, v.List())
+				if err != nil {
+					finalErr = err
+					return false
+				}
+				for _, item := range list {
+					u.Add(newPath, item)
+				}
+			}
+		case fd.IsMap():
+			if v.Map().Len() > 0 {
+				m, err := encodeMapField(fd, v.Map())
+				if err != nil {
+					finalErr = err
+					return false
+				}
+				for k, value := range m {
+					u.Set(fmt.Sprintf("%s[%s]", newPath, k), value)
+				}
+			}
+		case (fd.Kind() == protoreflect.MessageKind) || (fd.Kind() == protoreflect.GroupKind):
+			value, err := encodeMessage(fd.Message(), v)
+			if err == nil {
+				u.Set(newPath, value)
+				return true
+			}
+			if err = encodeByField(u, newPath, v.Message()); err != nil {
+				finalErr = err
+				return false
+			}
+		default:
+			value, err := EncodeField(fd, v)
+			if err != nil {
+				finalErr = err
+				return false
+			}
+			u.Set(newPath, value)
+		}
+		return true
+	})
+	return
+}
+
+func encodeRepeatedField(fieldDescriptor protoreflect.FieldDescriptor, list protoreflect.List) ([]string, error) {
+	var values []string
+	for i := 0; i < list.Len(); i++ {
+		value, err := EncodeField(fieldDescriptor, list.Get(i))
+		if err != nil {
+			return nil, err
+		}
+		values = append(values, value)
+	}
+	return values, nil
+}
+
+func encodeMapField(fieldDescriptor protoreflect.FieldDescriptor, mp protoreflect.Map) (map[string]string, error) {
+	m := make(map[string]string)
+	mp.Range(func(k protoreflect.MapKey, v protoreflect.Value) bool {
+		key, err := EncodeField(fieldDescriptor.MapValue(), k.Value())
+		if err != nil {
+			return false
+		}
+		value, err := EncodeField(fieldDescriptor.MapValue(), v)
+		if err != nil {
+			return false
+		}
+		m[key] = value
+		return true
+	})
+
+	return m, nil
+}
+
+// EncodeField encode proto message filed
+func EncodeField(fieldDescriptor protoreflect.FieldDescriptor, value protoreflect.Value) (string, error) {
+	switch fieldDescriptor.Kind() {
+	case protoreflect.BoolKind:
+		return strconv.FormatBool(value.Bool()), nil
+	case protoreflect.EnumKind:
+		if fieldDescriptor.Enum().FullName() == "google.protobuf.NullValue" {
+			return nullStr, nil
+		}
+		desc := fieldDescriptor.Enum().Values().ByNumber(value.Enum())
+		return string(desc.Name()), nil
+	case protoreflect.StringKind:
+		return value.String(), nil
+	case protoreflect.BytesKind:
+		return base64.URLEncoding.EncodeToString(value.Bytes()), nil
+	case protoreflect.MessageKind, protoreflect.GroupKind:
+		return encodeMessage(fieldDescriptor.Message(), value)
+	default:
+		return fmt.Sprint(value.Interface()), nil
+	}
+}
+
+// encodeMessage marshals the fields in the given protoreflect.Message.
+// If the typeURL is non-empty, then a synthetic "@type" field is injected
+// containing the URL as the value.
+func encodeMessage(msgDescriptor protoreflect.MessageDescriptor, value protoreflect.Value) (string, error) {
+	switch msgDescriptor.FullName() {
+	case timestampMessageFullname:
+		return marshalTimestamp(value.Message())
+	case durationMessageFullname:
+		return marshalDuration(value.Message())
+	case bytesMessageFullname:
+		return marshalBytes(value.Message())
+	case "google.protobuf.DoubleValue", "google.protobuf.FloatValue", "google.protobuf.Int64Value", "google.protobuf.Int32Value",
+		"google.protobuf.UInt64Value", "google.protobuf.UInt32Value", "google.protobuf.BoolValue", "google.protobuf.StringValue":
+		fd := msgDescriptor.Fields()
+		v := value.Message().Get(fd.ByName("value"))
+		return fmt.Sprint(v.Interface()), nil
+	case fieldMaskFullName:
+		m, ok := value.Message().Interface().(*fieldmaskpb.FieldMask)
+		if !ok || m == nil {
+			return "", nil
+		}
+		for i, v := range m.Paths {
+			m.Paths[i] = jsonCamelCase(v)
+		}
+		return strings.Join(m.Paths, ","), nil
+	default:
+		return "", fmt.Errorf("unsupported message type: %q", string(msgDescriptor.FullName()))
+	}
+}
+
+// EncodeFieldMask return field mask name=paths
+func EncodeFieldMask(m protoreflect.Message) (query string) {
+	m.Range(func(fd protoreflect.FieldDescriptor, v protoreflect.Value) bool {
+		if fd.Kind() == protoreflect.MessageKind {
+			if msg := fd.Message(); msg.FullName() == fieldMaskFullName {
+				value, err := encodeMessage(msg, v)
+				if err != nil {
+					return false
+				}
+				if fd.HasJSONName() {
+					query = fd.JSONName() + "=" + value
+				} else {
+					query = fd.TextName() + "=" + value
+				}
+				return false
+			}
+		}
+		return true
+	})
+	return
+}
+
+// jsonCamelCase converts a snake_case identifier to a camelCase identifier,
+// according to the protobuf JSON specification.
+// references: https://github.com/protocolbuffers/protobuf-go/blob/master/encoding/protojson/well_known_types.go#L842
+func jsonCamelCase(s string) string {
+	var b []byte
+	var wasUnderscore bool
+	for i := 0; i < len(s); i++ { // proto identifiers are always ASCII
+		c := s[i]
+		if c != '_' {
+			if wasUnderscore && isASCIILower(c) {
+				c -= 'a' - 'A' // convert to uppercase
+			}
+			b = append(b, c)
+		}
+		wasUnderscore = c == '_'
+	}
+	return string(b)
+}
+
+func isASCIILower(c byte) bool {
+	return 'a' <= c && c <= 'z'
+}

encoding/form/proto_encode.go

@@ -0,0 +1,333 @@
+package form
+
+import (
+	"encoding/base64"
+	"errors"
+	"fmt"
+	"net/url"
+	"strconv"
+	"strings"
+	"time"
+
+	"google.golang.org/protobuf/encoding/protojson"
+	"google.golang.org/protobuf/proto"
+	"google.golang.org/protobuf/reflect/protoreflect"
+	"google.golang.org/protobuf/reflect/protoregistry"
+	"google.golang.org/protobuf/types/known/durationpb"
+	"google.golang.org/protobuf/types/known/fieldmaskpb"
+	"google.golang.org/protobuf/types/known/structpb"
+	"google.golang.org/protobuf/types/known/timestamppb"
+	"google.golang.org/protobuf/types/known/wrapperspb"
+)
+
+// DecodeValues decode url value into proto message.
+func DecodeValues(msg proto.Message, values url.Values) error {
+	for key, values := range values {
+		if err := populateFieldValues(msg.ProtoReflect(), strings.Split(key, "."), values); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func populateFieldValues(v protoreflect.Message, fieldPath []string, values []string) error {
+	if len(fieldPath) < 1 {
+		return errors.New("no field path")
+	}
+	if len(values) < 1 {
+		return errors.New("no value provided")
+	}
+
+	var fd protoreflect.FieldDescriptor
+	for i, fieldName := range fieldPath {
+		if fd = getFieldDescriptor(v, fieldName); fd == nil {
+			// ignore unexpected field.
+			return nil
+		}
+
+		if i == len(fieldPath)-1 {
+			break
+		}
+
+		if fd.Message() == nil || fd.Cardinality() == protoreflect.Repeated {
+			if fd.IsMap() && len(fieldPath) > 1 {
+				// post subfield
+				return populateMapField(fd, v.Mutable(fd).Map(), []string{fieldPath[1]}, values)
+			}
+			return fmt.Errorf("invalid path: %q is not a message", fieldName)
+		}
+
+		v = v.Mutable(fd).Message()
+	}
+	if of := fd.ContainingOneof(); of != nil {
+		if f := v.WhichOneof(of); f != nil {
+			return fmt.Errorf("field already set for oneof %q", of.FullName().Name())
+		}
+	}
+	switch {
+	case fd.IsList():
+		return populateRepeatedField(fd, v.Mutable(fd).List(), values)
+	case fd.IsMap():
+		return populateMapField(fd, v.Mutable(fd).Map(), fieldPath, values)
+	}
+	if len(values) > 1 {
+		return fmt.Errorf("too many values for field %q: %s", fd.FullName().Name(), strings.Join(values, ", "))
+	}
+	return populateField(fd, v, values[0])
+}
+
+func getFieldDescriptor(v protoreflect.Message, fieldName string) protoreflect.FieldDescriptor {
+	fields := v.Descriptor().Fields()
+	var fd protoreflect.FieldDescriptor
+	if fd = getDescriptorByFieldAndName(fields, fieldName); fd == nil {
+		if v.Descriptor().FullName() == structMessageFullname {
+			fd = fields.ByNumber(structFieldsFieldNumber)
+		} else if len(fieldName) > 2 && strings.HasSuffix(fieldName, "[]") {
+			fd = getDescriptorByFieldAndName(fields, strings.TrimSuffix(fieldName, "[]"))
+		}
+	}
+	return fd
+}
+
+func getDescriptorByFieldAndName(fields protoreflect.FieldDescriptors, fieldName string) protoreflect.FieldDescriptor {
+	var fd protoreflect.FieldDescriptor
+	if fd = fields.ByName(protoreflect.Name(fieldName)); fd == nil {
+		fd = fields.ByJSONName(fieldName)
+	}
+	return fd
+}
+
+func populateField(fd protoreflect.FieldDescriptor, v protoreflect.Message, value string) error {
+	if value == "" {
+		return nil
+	}
+	val, err := parseField(fd, value)
+	if err != nil {
+		return fmt.Errorf("parsing field %q: %w", fd.FullName().Name(), err)
+	}
+	v.Set(fd, val)
+	return nil
+}
+
+func populateRepeatedField(fd protoreflect.FieldDescriptor, list protoreflect.List, values []string) error {
+	for _, value := range values {
+		v, err := parseField(fd, value)
+		if err != nil {
+			return fmt.Errorf("parsing list %q: %w", fd.FullName().Name(), err)
+		}
+		list.Append(v)
+	}
+	return nil
+}
+
+func populateMapField(fd protoreflect.FieldDescriptor, mp protoreflect.Map, fieldPath []string, values []string) error {
+	// post sub key.
+	nkey := len(fieldPath) - 1
+	key, err := parseField(fd.MapKey(), fieldPath[nkey])
+	if err != nil {
+		return fmt.Errorf("parsing map key %q: %w", fd.FullName().Name(), err)
+	}
+	vkey := len(values) - 1
+	value, err := parseField(fd.MapValue(), values[vkey])
+	if err != nil {
+		return fmt.Errorf("parsing map value %q: %w", fd.FullName().Name(), err)
+	}
+	mp.Set(key.MapKey(), value)
+	return nil
+}
+
+func parseField(fd protoreflect.FieldDescriptor, value string) (protoreflect.Value, error) {
+	switch fd.Kind() {
+	case protoreflect.BoolKind:
+		v, err := strconv.ParseBool(value)
+		if err != nil {
+			return protoreflect.Value{}, err
+		}
+		return protoreflect.ValueOfBool(v), nil
+	case protoreflect.EnumKind:
+		enum, err := protoregistry.GlobalTypes.FindEnumByName(fd.Enum().FullName())
+		switch {
+		case errors.Is(err, protoregistry.NotFound):
+			return protoreflect.Value{}, fmt.Errorf("enum %q is not registered", fd.Enum().FullName())
+		case err != nil:
+			return protoreflect.Value{}, fmt.Errorf("failed to look up enum: %w", err)
+		}
+		v := enum.Descriptor().Values().ByName(protoreflect.Name(value))
+		if v == nil {
+			i, err := strconv.ParseInt(value, 10, 32) //nolint:gomnd
+			if err != nil {
+				return protoreflect.Value{}, fmt.Errorf("%q is not a valid value", value)
+			}
+			v = enum.Descriptor().Values().ByNumber(protoreflect.EnumNumber(i))
+			if v == nil {
+				return protoreflect.Value{}, fmt.Errorf("%q is not a valid value", value)
+			}
+		}
+		return protoreflect.ValueOfEnum(v.Number()), nil
+	case protoreflect.Int32Kind, protoreflect.Sint32Kind, protoreflect.Sfixed32Kind:
+		v, err := strconv.ParseInt(value, 10, 32) //nolint:gomnd
+		if err != nil {
+			return protoreflect.Value{}, err
+		}
+		return protoreflect.ValueOfInt32(int32(v)), nil
+	case protoreflect.Int64Kind, protoreflect.Sint64Kind, protoreflect.Sfixed64Kind:
+		v, err := strconv.ParseInt(value, 10, 64) //nolint:gomnd
+		if err != nil {
+			return protoreflect.Value{}, err
+		}
+		return protoreflect.ValueOfInt64(v), nil
+	case protoreflect.Uint32Kind, protoreflect.Fixed32Kind:
+		v, err := strconv.ParseUint(value, 10, 32) //nolint:gomnd
+		if err != nil {
+			return protoreflect.Value{}, err
+		}
+		return protoreflect.ValueOfUint32(uint32(v)), nil
+	case protoreflect.Uint64Kind, protoreflect.Fixed64Kind:
+		v, err := strconv.ParseUint(value, 10, 64) //nolint:gomnd
+		if err != nil {
+			return protoreflect.Value{}, err
+		}
+		return protoreflect.ValueOfUint64(v), nil
+	case protoreflect.FloatKind:
+		v, err := strconv.ParseFloat(value, 32) //nolint:gomnd
+		if err != nil {
+			return protoreflect.Value{}, err
+		}
+		return protoreflect.ValueOfFloat32(float32(v)), nil
+	case protoreflect.DoubleKind:
+		v, err := strconv.ParseFloat(value, 64) //nolint:gomnd
+		if err != nil {
+			return protoreflect.Value{}, err
+		}
+		return protoreflect.ValueOfFloat64(v), nil
+	case protoreflect.StringKind:
+		return protoreflect.ValueOfString(value), nil
+	case protoreflect.BytesKind:
+		v, err := base64.StdEncoding.DecodeString(value)
+		if err != nil {
+			return protoreflect.Value{}, err
+		}
+		return protoreflect.ValueOfBytes(v), nil
+	case protoreflect.MessageKind, protoreflect.GroupKind:
+		return parseMessage(fd.Message(), value)
+	default:
+		panic(fmt.Sprintf("unknown field kind: %v", fd.Kind()))
+	}
+}
+
+func parseMessage(md protoreflect.MessageDescriptor, value string) (protoreflect.Value, error) {
+	var msg proto.Message
+	switch md.FullName() {
+	case "google.protobuf.Timestamp":
+		if value == nullStr {
+			break
+		}
+		t, err := time.Parse(time.RFC3339Nano, value)
+		if err != nil {
+			return protoreflect.Value{}, err
+		}
+		msg = timestamppb.New(t)
+	case "google.protobuf.Duration":
+		if value == nullStr {
+			break
+		}
+		d, err := time.ParseDuration(value)
+		if err != nil {
+			return protoreflect.Value{}, err
+		}
+		msg = durationpb.New(d)
+	case "google.protobuf.DoubleValue":
+		v, err := strconv.ParseFloat(value, 64) //nolint:gomnd
+		if err != nil {
+			return protoreflect.Value{}, err
+		}
+		msg = wrapperspb.Double(v)
+	case "google.protobuf.FloatValue":
+		v, err := strconv.ParseFloat(value, 32) //nolint:gomnd
+		if err != nil {
+			return protoreflect.Value{}, err
+		}
+		msg = wrapperspb.Float(float32(v))
+	case "google.protobuf.Int64Value":
+		v, err := strconv.ParseInt(value, 10, 64) //nolint:gomnd
+		if err != nil {
+			return protoreflect.Value{}, err
+		}
+		msg = wrapperspb.Int64(v)
+	case "google.protobuf.Int32Value":
+		v, err := strconv.ParseInt(value, 10, 32) //nolint:gomnd
+		if err != nil {
+			return protoreflect.Value{}, err
+		}
+		msg = wrapperspb.Int32(int32(v))
+	case "google.protobuf.UInt64Value":
+		v, err := strconv.ParseUint(value, 10, 64) //nolint:gomnd
+		if err != nil {
+			return protoreflect.Value{}, err
+		}
+		msg = wrapperspb.UInt64(v)
+	case "google.protobuf.UInt32Value":
+		v, err := strconv.ParseUint(value, 10, 32) //nolint:gomnd
+		if err != nil {
+			return protoreflect.Value{}, err
+		}
+		msg = wrapperspb.UInt32(uint32(v))
+	case "google.protobuf.BoolValue":
+		v, err := strconv.ParseBool(value)
+		if err != nil {
+			return protoreflect.Value{}, err
+		}
+		msg = wrapperspb.Bool(v)
+	case "google.protobuf.StringValue":
+		msg = wrapperspb.String(value)
+	case "google.protobuf.BytesValue":
+		v, err := base64.StdEncoding.DecodeString(value)
+		if err != nil {
+			if v, err = base64.URLEncoding.DecodeString(value); err != nil {
+				return protoreflect.Value{}, err
+			}
+		}
+		msg = wrapperspb.Bytes(v)
+	case "google.protobuf.FieldMask":
+		fm := &fieldmaskpb.FieldMask{}
+		for _, fv := range strings.Split(value, ",") {
+			fm.Paths = append(fm.Paths, jsonSnakeCase(fv))
+		}
+		msg = fm
+	case "google.protobuf.Value":
+		fm, err := structpb.NewValue(value)
+		if err != nil {
+			return protoreflect.Value{}, err
+		}
+		msg = fm
+	case "google.protobuf.Struct":
+		var v structpb.Struct
+		if err := protojson.Unmarshal([]byte(value), &v); err != nil {
+			return protoreflect.Value{}, err
+		}
+		msg = &v
+	default:
+		return protoreflect.Value{}, fmt.Errorf("unsupported message type: %q", string(md.FullName()))
+	}
+	return protoreflect.ValueOfMessage(msg.ProtoReflect()), nil
+}
+
+// jsonSnakeCase converts a camelCase identifier to a snake_case identifier,
+// according to the protobuf JSON specification.
+// references: https://github.com/protocolbuffers/protobuf-go/blob/master/encoding/protojson/well_known_types.go#L864
+func jsonSnakeCase(s string) string {
+	var b []byte
+	for i := 0; i < len(s); i++ { // proto identifiers are always ASCII
+		c := s[i]
+		if isASCIIUpper(c) {
+			b = append(b, '_')
+			c += 'a' - 'A' // convert to lowercase
+		}
+		b = append(b, c)
+	}
+	return string(b)
+}
+
+func isASCIIUpper(c byte) bool {
+	return 'A' <= c && c <= 'Z'
+}

encoding/form/well_known_types.go

@@ -0,0 +1,94 @@
+package form
+
+import (
+	"encoding/base64"
+	"fmt"
+	"math"
+	"strings"
+	"time"
+
+	"google.golang.org/protobuf/reflect/protoreflect"
+)
+
+const (
+	// timestamp
+	timestampMessageFullname    protoreflect.FullName    = "google.protobuf.Timestamp"
+	maxTimestampSeconds                                  = 253402300799
+	minTimestampSeconds                                  = -6213559680013
+	timestampSecondsFieldNumber protoreflect.FieldNumber = 1
+	timestampNanosFieldNumber   protoreflect.FieldNumber = 2
+
+	// duration
+	durationMessageFullname    protoreflect.FullName    = "google.protobuf.Duration"
+	secondsInNanos                                      = 999999999
+	durationSecondsFieldNumber protoreflect.FieldNumber = 1
+	durationNanosFieldNumber   protoreflect.FieldNumber = 2
+
+	// bytes
+	bytesMessageFullname  protoreflect.FullName    = "google.protobuf.BytesValue"
+	bytesValueFieldNumber protoreflect.FieldNumber = 1
+
+	// google.protobuf.Struct.
+	structMessageFullname   protoreflect.FullName    = "google.protobuf.Struct"
+	structFieldsFieldNumber protoreflect.FieldNumber = 1
+
+	fieldMaskFullName protoreflect.FullName = "google.protobuf.FieldMask"
+)
+
+func marshalTimestamp(m protoreflect.Message) (string, error) {
+	fds := m.Descriptor().Fields()
+	fdSeconds := fds.ByNumber(timestampSecondsFieldNumber)
+	fdNanos := fds.ByNumber(timestampNanosFieldNumber)
+
+	secsVal := m.Get(fdSeconds)
+	nanosVal := m.Get(fdNanos)
+	secs := secsVal.Int()
+	nanos := nanosVal.Int()
+	if secs < minTimestampSeconds || secs > maxTimestampSeconds {
+		return "", fmt.Errorf("%s: seconds out of range %v", timestampMessageFullname, secs)
+	}
+	if nanos < 0 || nanos > secondsInNanos {
+		return "", fmt.Errorf("%s: nanos out of range %v", timestampMessageFullname, nanos)
+	}
+	// Uses RFC 3339, where generated output will be Z-normalized and uses 0, 3,
+	// 6 or 9 fractional digits.
+	t := time.Unix(secs, nanos).UTC()
+	x := t.Format("2006-01-02T15:04:05.000000000")
+	x = strings.TrimSuffix(x, "000")
+	x = strings.TrimSuffix(x, "000")
+	x = strings.TrimSuffix(x, ".000")
+	return x + "Z", nil
+}
+
+func marshalDuration(m protoreflect.Message) (string, error) {
+	fds := m.Descriptor().Fields()
+	fdSeconds := fds.ByNumber(durationSecondsFieldNumber)
+	fdNanos := fds.ByNumber(durationNanosFieldNumber)
+
+	secsVal := m.Get(fdSeconds)
+	nanosVal := m.Get(fdNanos)
+	secs := secsVal.Int()
+	nanos := nanosVal.Int()
+	d := time.Duration(secs) * time.Second
+	overflow := d/time.Second != time.Duration(secs)
+	d += time.Duration(nanos) * time.Nanosecond
+	overflow = overflow || (secs < 0 && nanos < 0 && d > 0)
+	overflow = overflow || (secs > 0 && nanos > 0 && d < 0)
+	if overflow {
+		switch {
+		case secs < 0:
+			return time.Duration(math.MinInt64).String(), nil
+		case secs > 0:
+			return time.Duration(math.MaxInt64).String(), nil
+		}
+	}
+	return d.String(), nil
+}
+
+func marshalBytes(m protoreflect.Message) (string, error) {
+	fds := m.Descriptor().Fields()
+	fdBytes := fds.ByNumber(bytesValueFieldNumber)
+	bytesVal := m.Get(fdBytes)
+	val := bytesVal.Bytes()
+	return base64.StdEncoding.EncodeToString(val), nil
+}

encoding/json/json.go

@@ -0,0 +1,67 @@
+package json
+
+import (
+	"encoding/json"
+	"git.diulo.com/mogfee/kit/encoding"
+	"reflect"
+
+	"google.golang.org/protobuf/encoding/protojson"
+	"google.golang.org/protobuf/proto"
+)
+
+// Name is the name registered for the json codec.
+const Name = "json"
+
+var (
+	// MarshalOptions is a configurable JSON format marshaller.
+	MarshalOptions = protojson.MarshalOptions{
+		EmitUnpopulated: true,
+	}
+	// UnmarshalOptions is a configurable JSON format parser.
+	UnmarshalOptions = protojson.UnmarshalOptions{
+		DiscardUnknown: true,
+	}
+)
+
+func init() {
+	encoding.RegisterCodec(codec{})
+}
+
+// codec is a Codec implementation with json.
+type codec struct{}
+
+func (codec) Marshal(v interface{}) ([]byte, error) {
+	switch m := v.(type) {
+	case json.Marshaler:
+		return m.MarshalJSON()
+	case proto.Message:
+		return MarshalOptions.Marshal(m)
+	default:
+		return json.Marshal(m)
+	}
+}
+
+func (codec) Unmarshal(data []byte, v interface{}) error {
+	switch m := v.(type) {
+	case json.Unmarshaler:
+		return m.UnmarshalJSON(data)
+	case proto.Message:
+		return UnmarshalOptions.Unmarshal(data, m)
+	default:
+		rv := reflect.ValueOf(v)
+		for rv := rv; rv.Kind() == reflect.Ptr; {
+			if rv.IsNil() {
+				rv.Set(reflect.New(rv.Type().Elem()))
+			}
+			rv = rv.Elem()
+		}
+		if m, ok := reflect.Indirect(rv).Interface().(proto.Message); ok {
+			return UnmarshalOptions.Unmarshal(data, m)
+		}
+		return json.Unmarshal(data, m)
+	}
+}
+
+func (codec) Name() string {
+	return Name
+}

errors/errors.go

@@ -2,8 +2,9 @@ package errors
 
 import (
 	"errors"
+	"fmt"
+	httpstatus "git.diulo.com/mogfee/kit/transport/http/status"
 	"google.golang.org/genproto/googleapis/rpc/errdetails"
-	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 )
 
@@ -15,36 +16,69 @@ const (
 )
 
 type Error struct {
-	Status   int
+	Status
-	Message  string
+	cause error
-	Reason   string
-	Metadata map[string]string
 }
 
-func (e *Error) WithMetadata(data map[string]string) *Error {
+func (e *Error) Error() string {
-	err := Clone(e)
+	return fmt.Sprintf("error: code = %d reason = %s message = %s metadata = %v cause = %v", e.Code, e.Reason, e.Message, e.Metadata, e.cause)
-	err.Metadata = data
-	return err
 }
-func (s *Error) Error() string {
+func (e *Error) Unwarp() error {
-	return s.Message
+	return e.cause
 }
-func New(code int, reason, message string) *Error {
+func (e *Error) Is(err error) bool {
-	return &Error{
+	if se := new(Error); errors.As(err, &se) {
-		Status:   code,
+		return se.Code == e.Code && se.Reason == e.Reason
-		Message:  message,
+	}
-		Reason:   reason,
+	return false
-		Metadata: map[string]string{},
+}
+func (e *Error) WithCause(cause error) *Error {
+	err := Clone(e)
+	err.cause = cause
+	return err
 }
+func (e *Error) WithMetadata(md map[string]string) *Error {
+	err := Clone(e)
+	err.Metadata = md
+	return err
 }
+
 func (e *Error) GRPCStatus() *status.Status {
-	s, _ := status.New(codes.Code(e.Status), e.Message).
+	s, _ := status.New(httpstatus.ToGRPCCode(int(e.Code)), e.Message).
 		WithDetails(&errdetails.ErrorInfo{
 			Reason:   e.Reason,
 			Metadata: e.Metadata,
 		})
 	return s
 }
+func New(code int, reason, message string) *Error {
+	return &Error{
+		Status: Status{
+			Code:    int32(code),
+			Reason:  reason,
+			Message: message,
+		},
+	}
+}
+func Newf(code int, reason string, format string, a ...any) *Error {
+	return New(code, reason, fmt.Sprintf(format, a...))
+}
+func Errorf(code int, reason string, format string, a ...any) *Error {
+	return New(code, reason, fmt.Sprintf(format, a...))
+}
+func Code(err error) int {
+	if err == nil {
+		return 200
+	}
+	return int(FromError(err).Code)
+}
+func Reason(err error) string {
+	if err == nil {
+		return UnknownReason
+	}
+	return FromError(err).Reason
+}
+
 func Clone(err *Error) *Error {
 	if err == nil {
 		return nil
@@ -54,18 +88,15 @@ func Clone(err *Error) *Error {
 		metadata[k] = v
 	}
 	return &Error{
-		Status:   err.Status,
+		cause: err.cause,
+		Status: Status{
+			Code:     err.Code,
 			Reason:   err.Reason,
 			Message:  err.Message,
 			Metadata: metadata,
+		},
 	}
 }
-func Code(err error) int {
-	if err == nil {
-		return 200
-	}
-	return FromError(err).Status
-}
 
 func FromError(err error) *Error {
 	if err == nil {
@@ -74,5 +105,17 @@ func FromError(err error) *Error {
 	if se := new(Error); errors.As(err, &se) {
 		return se
 	}
+	gs, ok := status.FromError(err)
+	if !ok {
 		return New(UnknownCode, UnknownReason, err.Error())
 	}
+	ret := New(httpstatus.FromGRPCCode(gs.Code()), UnknownReason, gs.Message())
+	for _, detail := range gs.Details() {
+		switch d := detail.(type) {
+		case *errdetails.ErrorInfo:
+			ret.Reason = d.Reason
+			return ret.WithMetadata(d.Metadata)
+		}
+	}
+	return ret
+}

errors/errors.pb.go

@@ -0,0 +1,226 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.28.1
+// 	protoc        v4.22.0
+// source: errors.proto
+
+package errors
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	descriptorpb "google.golang.org/protobuf/types/descriptorpb"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+type Status struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Code     int32             `protobuf:"varint,1,opt,name=code,proto3" json:"code,omitempty"`
+	Reason   string            `protobuf:"bytes,2,opt,name=reason,proto3" json:"reason,omitempty"`
+	Message  string            `protobuf:"bytes,3,opt,name=message,proto3" json:"message,omitempty"`
+	Metadata map[string]string `protobuf:"bytes,4,rep,name=metadata,proto3" json:"metadata,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
+}
+
+func (x *Status) Reset() {
+	*x = Status{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_errors_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Status) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Status) ProtoMessage() {}
+
+func (x *Status) ProtoReflect() protoreflect.Message {
+	mi := &file_errors_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use Status.ProtoReflect.Descriptor instead.
+func (*Status) Descriptor() ([]byte, []int) {
+	return file_errors_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Status) GetCode() int32 {
+	if x != nil {
+		return x.Code
+	}
+	return 0
+}
+
+func (x *Status) GetReason() string {
+	if x != nil {
+		return x.Reason
+	}
+	return ""
+}
+
+func (x *Status) GetMessage() string {
+	if x != nil {
+		return x.Message
+	}
+	return ""
+}
+
+func (x *Status) GetMetadata() map[string]string {
+	if x != nil {
+		return x.Metadata
+	}
+	return nil
+}
+
+var file_errors_proto_extTypes = []protoimpl.ExtensionInfo{
+	{
+		ExtendedType:  (*descriptorpb.EnumOptions)(nil),
+		ExtensionType: (*int32)(nil),
+		Field:         1108,
+		Name:          "errors.default_code",
+		Tag:           "varint,1108,opt,name=default_code",
+		Filename:      "errors.proto",
+	},
+	{
+		ExtendedType:  (*descriptorpb.EnumValueOptions)(nil),
+		ExtensionType: (*int32)(nil),
+		Field:         1109,
+		Name:          "errors.code",
+		Tag:           "varint,1109,opt,name=code",
+		Filename:      "errors.proto",
+	},
+}
+
+// Extension fields to descriptorpb.EnumOptions.
+var (
+	// optional int32 default_code = 1108;
+	E_DefaultCode = &file_errors_proto_extTypes[0]
+)
+
+// Extension fields to descriptorpb.EnumValueOptions.
+var (
+	// optional int32 code = 1109;
+	E_Code = &file_errors_proto_extTypes[1]
+)
+
+var File_errors_proto protoreflect.FileDescriptor
+
+var file_errors_proto_rawDesc = []byte{
+	0x0a, 0x0c, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x73, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x06,
+	0x65, 0x72, 0x72, 0x6f, 0x72, 0x73, 0x1a, 0x20, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x64, 0x65, 0x73, 0x63, 0x72, 0x69, 0x70, 0x74,
+	0x6f, 0x72, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xc5, 0x01, 0x0a, 0x06, 0x53, 0x74, 0x61,
+	0x74, 0x75, 0x73, 0x12, 0x12, 0x0a, 0x04, 0x63, 0x6f, 0x64, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28,
+	0x05, 0x52, 0x04, 0x63, 0x6f, 0x64, 0x65, 0x12, 0x16, 0x0a, 0x06, 0x72, 0x65, 0x61, 0x73, 0x6f,
+	0x6e, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x72, 0x65, 0x61, 0x73, 0x6f, 0x6e, 0x12,
+	0x18, 0x0a, 0x07, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09,
+	0x52, 0x07, 0x6d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x12, 0x38, 0x0a, 0x08, 0x6d, 0x65, 0x74,
+	0x61, 0x64, 0x61, 0x74, 0x61, 0x18, 0x04, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x1c, 0x2e, 0x65, 0x72,
+	0x72, 0x6f, 0x72, 0x73, 0x2e, 0x53, 0x74, 0x61, 0x74, 0x75, 0x73, 0x2e, 0x4d, 0x65, 0x74, 0x61,
+	0x64, 0x61, 0x74, 0x61, 0x45, 0x6e, 0x74, 0x72, 0x79, 0x52, 0x08, 0x6d, 0x65, 0x74, 0x61, 0x64,
+	0x61, 0x74, 0x61, 0x1a, 0x3b, 0x0a, 0x0d, 0x4d, 0x65, 0x74, 0x61, 0x64, 0x61, 0x74, 0x61, 0x45,
+	0x6e, 0x74, 0x72, 0x79, 0x12, 0x10, 0x0a, 0x03, 0x6b, 0x65, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28,
+	0x09, 0x52, 0x03, 0x6b, 0x65, 0x79, 0x12, 0x14, 0x0a, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x18,
+	0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x3a, 0x02, 0x38, 0x01,
+	0x3a, 0x40, 0x0a, 0x0c, 0x64, 0x65, 0x66, 0x61, 0x75, 0x6c, 0x74, 0x5f, 0x63, 0x6f, 0x64, 0x65,
+	0x12, 0x1c, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62,
+	0x75, 0x66, 0x2e, 0x45, 0x6e, 0x75, 0x6d, 0x4f, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x18, 0xd4,
+	0x08, 0x20, 0x01, 0x28, 0x05, 0x52, 0x0b, 0x64, 0x65, 0x66, 0x61, 0x75, 0x6c, 0x74, 0x43, 0x6f,
+	0x64, 0x65, 0x3a, 0x36, 0x0a, 0x04, 0x63, 0x6f, 0x64, 0x65, 0x12, 0x21, 0x2e, 0x67, 0x6f, 0x6f,
+	0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x45, 0x6e, 0x75,
+	0x6d, 0x56, 0x61, 0x6c, 0x75, 0x65, 0x4f, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x18, 0xd5, 0x08,
+	0x20, 0x01, 0x28, 0x05, 0x52, 0x04, 0x63, 0x6f, 0x64, 0x65, 0x42, 0x28, 0x5a, 0x26, 0x67, 0x69,
+	0x74, 0x2e, 0x64, 0x69, 0x75, 0x6c, 0x6f, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x6d, 0x6f, 0x67, 0x66,
+	0x65, 0x65, 0x2f, 0x6b, 0x69, 0x74, 0x2f, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x73, 0x3b, 0x65, 0x72,
+	0x72, 0x6f, 0x72, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_errors_proto_rawDescOnce sync.Once
+	file_errors_proto_rawDescData = file_errors_proto_rawDesc
+)
+
+func file_errors_proto_rawDescGZIP() []byte {
+	file_errors_proto_rawDescOnce.Do(func() {
+		file_errors_proto_rawDescData = protoimpl.X.CompressGZIP(file_errors_proto_rawDescData)
+	})
+	return file_errors_proto_rawDescData
+}
+
+var file_errors_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
+var file_errors_proto_goTypes = []interface{}{
+	(*Status)(nil),                        // 0: errors.Status
+	nil,                                   // 1: errors.Status.MetadataEntry
+	(*descriptorpb.EnumOptions)(nil),      // 2: google.protobuf.EnumOptions
+	(*descriptorpb.EnumValueOptions)(nil), // 3: google.protobuf.EnumValueOptions
+}
+var file_errors_proto_depIdxs = []int32{
+	1, // 0: errors.Status.metadata:type_name -> errors.Status.MetadataEntry
+	2, // 1: errors.default_code:extendee -> google.protobuf.EnumOptions
+	3, // 2: errors.code:extendee -> google.protobuf.EnumValueOptions
+	3, // [3:3] is the sub-list for method output_type
+	3, // [3:3] is the sub-list for method input_type
+	3, // [3:3] is the sub-list for extension type_name
+	1, // [1:3] is the sub-list for extension extendee
+	0, // [0:1] is the sub-list for field type_name
+}
+
+func init() { file_errors_proto_init() }
+func file_errors_proto_init() {
+	if File_errors_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_errors_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Status); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_errors_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   2,
+			NumExtensions: 2,
+			NumServices:   0,
+		},
+		GoTypes:           file_errors_proto_goTypes,
+		DependencyIndexes: file_errors_proto_depIdxs,
+		MessageInfos:      file_errors_proto_msgTypes,
+		ExtensionInfos:    file_errors_proto_extTypes,
+	}.Build()
+	File_errors_proto = out.File
+	file_errors_proto_rawDesc = nil
+	file_errors_proto_goTypes = nil
+	file_errors_proto_depIdxs = nil
+}

errors/errors.proto

@@ -0,0 +1,16 @@
+syntax="proto3";
+package errors;
+option go_package="git.diulo.com/mogfee/kit/errors;errors";
+import "google/protobuf/descriptor.proto";
+message Status{
+  int32 code=1;
+  string reason=2;
+  string message=3;
+  map<string,string>metadata=4;
+}
+extend google.protobuf.EnumOptions{
+  int32 default_code=1108;
+}
+extend google.protobuf.EnumValueOptions{
+  int32 code=1109;
+}

errors/warp.go

@@ -0,0 +1,16 @@
+package errors
+
+import (
+	stderrors "errors"
+)
+
+func Is(err, target error) bool {
+	return stderrors.Is(err, target)
+}
+
+func As(err error, target any) bool {
+	return stderrors.As(err, target)
+}
+func Unwarp(err error) error {
+	return stderrors.Unwrap(err)
+}

internal/endpoint/endpoint.go

@@ -0,0 +1,34 @@
+package endpoint
+
+import (
+	"net/url"
+)
+
+// NewEndpoint new an Endpoint URL.
+func NewEndpoint(scheme, host string) *url.URL {
+	return &url.URL{Scheme: scheme, Host: host}
+}
+
+// ParseEndpoint parses an Endpoint URL.
+func ParseEndpoint(endpoints []string, scheme string) (string, error) {
+	for _, e := range endpoints {
+		u, err := url.Parse(e)
+		if err != nil {
+			return "", err
+		}
+
+		if u.Scheme == scheme {
+			return u.Host, nil
+		}
+	}
+	return "", nil
+}
+
+// Scheme is the scheme of endpoint url.
+// examples: scheme="http",isSecure=true get "https"
+func Scheme(scheme string, isSecure bool) string {
+	if isSecure {
+		return scheme + "s"
+	}
+	return scheme
+}

internal/host/host.go

@@ -0,0 +1,92 @@
+package host
+
+import (
+	"fmt"
+	"net"
+	"strconv"
+)
+
+// ExtractHostPort from address
+func ExtractHostPort(addr string) (host string, port uint64, err error) {
+	var ports string
+	host, ports, err = net.SplitHostPort(addr)
+	if err != nil {
+		return
+	}
+	port, err = strconv.ParseUint(ports, 10, 16) //nolint:gomnd
+	return
+}
+
+func isValidIP(addr string) bool {
+	ip := net.ParseIP(addr)
+	return ip.IsGlobalUnicast() && !ip.IsInterfaceLocalMulticast()
+}
+
+// Port return a real port.
+func Port(lis net.Listener) (int, bool) {
+	if addr, ok := lis.Addr().(*net.TCPAddr); ok {
+		return addr.Port, true
+	}
+	return 0, false
+}
+
+// Extract returns a private addr and port.
+func Extract(hostPort string, lis net.Listener) (string, error) {
+	addr, port, err := net.SplitHostPort(hostPort)
+	if err != nil && lis == nil {
+		return "", err
+	}
+	if lis != nil {
+		p, ok := Port(lis)
+		if !ok {
+			return "", fmt.Errorf("failed to extract port: %v", lis.Addr())
+		}
+		port = strconv.Itoa(p)
+	}
+	if len(addr) > 0 && (addr != "0.0.0.0" && addr != "[::]" && addr != "::") {
+		return net.JoinHostPort(addr, port), nil
+	}
+	ifaces, err := net.Interfaces()
+	if err != nil {
+		return "", err
+	}
+	minIndex := int(^uint(0) >> 1)
+	ips := make([]net.IP, 0)
+	for _, iface := range ifaces {
+		if (iface.Flags & net.FlagUp) == 0 {
+			continue
+		}
+		if iface.Index >= minIndex && len(ips) != 0 {
+			continue
+		}
+		addrs, err := iface.Addrs()
+		if err != nil {
+			continue
+		}
+		for i, rawAddr := range addrs {
+			var ip net.IP
+			switch addr := rawAddr.(type) {
+			case *net.IPAddr:
+				ip = addr.IP
+			case *net.IPNet:
+				ip = addr.IP
+			default:
+				continue
+			}
+			if isValidIP(ip.String()) {
+				minIndex = iface.Index
+				if i == 0 {
+					ips = make([]net.IP, 0, 1)
+				}
+				ips = append(ips, ip)
+				if ip.To4() != nil {
+					break
+				}
+			}
+		}
+	}
+	if len(ips) != 0 {
+		return net.JoinHostPort(ips[len(ips)-1].String(), port), nil
+	}
+	return "", nil
+}

middleware/jwt.go

@@ -2,7 +2,7 @@ package middleware
 
 import (
 	"context"
-	"git.diulo.com/mogfee/protoc-gen-kit/constants"
+	"git.diulo.com/mogfee/kit/constants"
 	"google.golang.org/grpc/metadata"
 )
 

middleware/logger.go

@@ -2,14 +2,13 @@ package middleware
 
 import (
 	"context"
-	"git.diulo.com/mogfee/protoc-gen-kit/log"
+	"git.diulo.com/mogfee/kit/log"
 )
 
 func Logger(logger log.Logger) Middleware {
 	//helper:=log.NewHelper(logger)
 	return func(handler Handler) Handler {
 		return func(ctx context.Context, a any) (any, error) {
-			//helper.Infof("")
 			return handler(ctx, a)
 		}
 	}

options.go

@@ -1,4 +1,4 @@
-package protoc_gen_kit
+package kit
 
 import (
 	"context"

test/main.go

@@ -1,16 +1,36 @@
 package main
 
 import (
+	"errors"
 	"fmt"
-	protoc_gen_kit "git.diulo.com/mogfee/protoc-gen-kit"
+	"git.diulo.com/mogfee/kit"
+	"git.diulo.com/mogfee/kit/transport/http"
 )
 
 func main() {
-	app := protoc_gen_kit.New(
+	app := kit.New(
-		protoc_gen_kit.Name("user-server"),
+		kit.Name("user-server"),
-		protoc_gen_kit.Server())
+		kit.Server(appServer()))
 	fmt.Println("run start")
 	app.Run()
 	fmt.Println("run end")
 	app.Stop()
 }
+func appServer() *http.Server {
+	srv := http.NewServer(http.Address("localhost:9019"))
+	group := srv.Route("/")
+	group.Handle("GET", "/", func(ctx http.Context) error {
+		return errors.New("abc ")
+	})
+	//group.GET("/", func(ctx http.Context) error {
+	//	return ctx.String(200, "index page")
+	//})
+	//group.GET("/hello", func(ctx http.Context) error {
+	//	return ctx.String(200, "hello page")
+	//})
+	//group.GET("/error", func(ctx http.Context) error {
+	//	fmt.Println("err 1")
+	//	return errors.New(400, "BAD_REQUEST", "")
+	//})
+	return srv
+}

third_party/errors/errors.proto

@@ -0,0 +1,16 @@
+syntax="proto3";
+package errors;
+option go_package="git.diulo.com/mogfee/kit/errors;errors";
+import "google/protobuf/descriptor.proto";
+message Status{
+  int32 code=1;
+  string reason=2;
+  string message=3;
+  map<string,string>metadata=4;
+}
+extend google.protobuf.EnumOptions{
+  int32 default_code=1108;
+}
+extend google.protobuf.EnumValueOptions{
+  int32 code=1109;
+}

transport/http/calloption.go

@@ -0,0 +1,109 @@
+package http
+
+import (
+	"net/http"
+)
+
+// CallOption configures a Call before it starts or extracts information from
+// a Call after it completes.
+type CallOption interface {
+	// before is called before the call is sent to any server.  If before
+	// returns a non-nil error, the RPC fails with that error.
+	before(*callInfo) error
+
+	// after is called after the call has completed.  after cannot return an
+	// error, so any failures should be reported via output parameters.
+	after(*callInfo, *csAttempt)
+}
+
+type callInfo struct {
+	contentType  string
+	operation    string
+	pathTemplate string
+}
+
+// EmptyCallOption does not alter the Call configuration.
+// It can be embedded in another structure to carry satellite data for use
+// by interceptors.
+type EmptyCallOption struct{}
+
+func (EmptyCallOption) before(*callInfo) error      { return nil }
+func (EmptyCallOption) after(*callInfo, *csAttempt) {}
+
+type csAttempt struct {
+	res *http.Response
+}
+
+// ContentType with request content type.
+func ContentType(contentType string) CallOption {
+	return ContentTypeCallOption{ContentType: contentType}
+}
+
+// ContentTypeCallOption is BodyCallOption
+type ContentTypeCallOption struct {
+	EmptyCallOption
+	ContentType string
+}
+
+func (o ContentTypeCallOption) before(c *callInfo) error {
+	c.contentType = o.ContentType
+	return nil
+}
+
+func defaultCallInfo(path string) callInfo {
+	return callInfo{
+		contentType:  "application/json",
+		operation:    path,
+		pathTemplate: path,
+	}
+}
+
+// Operation is serviceMethod call option
+func Operation(operation string) CallOption {
+	return OperationCallOption{Operation: operation}
+}
+
+// OperationCallOption is set ServiceMethod for client call
+type OperationCallOption struct {
+	EmptyCallOption
+	Operation string
+}
+
+func (o OperationCallOption) before(c *callInfo) error {
+	c.operation = o.Operation
+	return nil
+}
+
+// PathTemplate is http path template
+func PathTemplate(pattern string) CallOption {
+	return PathTemplateCallOption{Pattern: pattern}
+}
+
+// PathTemplateCallOption is set path template for client call
+type PathTemplateCallOption struct {
+	EmptyCallOption
+	Pattern string
+}
+
+func (o PathTemplateCallOption) before(c *callInfo) error {
+	c.pathTemplate = o.Pattern
+	return nil
+}
+
+// Header returns a CallOptions that retrieves the http response header
+// from server reply.
+func Header(header *http.Header) CallOption {
+	return HeaderCallOption{header: header}
+}
+
+// HeaderCallOption is retrieve response header for client call
+type HeaderCallOption struct {
+	EmptyCallOption
+	header *http.Header
+}
+
+func (o HeaderCallOption) after(c *callInfo, cs *csAttempt) {
+	if cs.res != nil && cs.res.Header != nil {
+		*o.header = cs.res.Header
+	}
+}

transport/http/codec.go

@@ -81,7 +81,7 @@ func DefaultErrorEncoder(w http.ResponseWriter, r *http.Request, err error) {
 		return
 	}
 	w.Header().Set("Content-Type", httputil.ContentType(codec.Name()))
-	w.WriteHeader(int(se.Status))
+	w.WriteHeader(int(se.Status.Code))
 	_, _ = w.Write(body)
 }
 func CodeForRequest(r *http.Request, name string) (encoding.Codec, bool) {

transport/http/router.go

@@ -12,7 +12,7 @@ type RouteInfo struct {
 	Path   string
 	Method string
 }
-type HandlerFunc func(Context) error
+type HandlerFunc func(ctx Context) error
 type Router struct {
 	prefix  string
 	pool    sync.Pool

transport/http/server.go

@@ -3,7 +3,11 @@ package http
 import (
 	"context"
 	"crypto/tls"
+	"errors"
+	"git.diulo.com/mogfee/kit/internal/endpoint"
+	"git.diulo.com/mogfee/kit/internal/host"
 	"git.diulo.com/mogfee/kit/internal/matcher"
+	"git.diulo.com/mogfee/kit/log"
 	"git.diulo.com/mogfee/kit/middleware"
 	"git.diulo.com/mogfee/kit/transport"
 	"github.com/gorilla/mux"
@@ -156,6 +160,8 @@ func NewServer(opts ...ServerOption) *Server {
 		decVars:     DefaultRequestVars,
 		decQuery:    DefaultRequestQuery,
 		decBody:     DefaultRequestDecoder,
+		enc:         DefaultResponseEncoder,
+		ene:         DefaultErrorEncoder,
 		strictSlash: true,
 		router:      mux.NewRouter(),
 	}
@@ -198,7 +204,7 @@ func (s *Server) WalkRoute(fn WalkRoutFunc) error {
 	})
 }
 func (s *Server) Kind() transport.Kind {
-	return transport.htt
+	return transport.KindHTTP
 }
 func (s *Server) Route(prefix string, filters ...FilterFunc) *Router {
 	return newRouter(prefix, s, filters...)
@@ -218,6 +224,38 @@ func (s *Server) HandleHeader(key, val string, h http.Handler) {
 func (s *Server) ServeHTTP(res http.ResponseWriter, req *http.Request) {
 	s.Handler.ServeHTTP(res, req)
 }
+
+func (s *Server) Endpoint() (*url.URL, error) {
+	if err := s.listenAndEndpoint(); err != nil {
+		return nil, err
+	}
+	return s.endpoint, nil
+}
+
+func (s *Server) Start(ctx context.Context) error {
+	if err := s.listenAndEndpoint(); err != nil {
+		return err
+	}
+	s.BaseContext = func(listener net.Listener) context.Context {
+		return ctx
+	}
+	log.Infof("[HTTP] server listening on: %s", s.endpoint)
+	var err error
+	if s.tlsConf != nil {
+		err = s.ServeTLS(s.lis, "", "")
+	} else {
+		err = s.Serve(s.lis)
+	}
+	if !errors.Is(err, http.ErrServerClosed) {
+		return err
+	}
+	return nil
+}
+
+func (s *Server) Stop(ctx context.Context) error {
+	log.Info("[HTTP] server stopping")
+	return s.Shutdown(ctx)
+}
 func (s *Server) filter() mux.MiddlewareFunc {
 	return func(handler http.Handler) http.Handler {
 		return http.HandlerFunc(func(writer http.ResponseWriter, request *http.Request) {
@@ -237,27 +275,38 @@ func (s *Server) filter() mux.MiddlewareFunc {
 			if route := mux.CurrentRoute(request); route != nil {
 				pathTemplate, _ = route.GetPathTemplate()
 			}
-			tr := &Transport{}
+			tr := &Transport{
+				operation:    pathTemplate,
+				pathTemplate: pathTemplate,
+				reqHeader:    headerCarrier(request.Header),
+				replyHeader:  headerCarrier(writer.Header()),
+				request:      request,
+			}
+			if s.endpoint != nil {
+				tr.endpoint = s.endpoint.String()
+			}
+			tr.request = request.WithContext(transport.NewServerContext(ctx, tr))
+			handler.ServeHTTP(writer, request)
 		})
 	}
 }
 
-func (s *Server) Endpoint() string {
+func (s *Server) listenAndEndpoint() error {
-	//TODO implement me
+	if s.lis == nil {
-	panic("implement me")
+		lis, err := net.Listen(s.network, s.address)
+		if err != nil {
+			s.err = err
+			return err
 		}
-
+		s.lis = lis
-func (s *Server) Operation() string {
-	//TODO implement me
-	panic("implement me")
 	}
-
+	if s.endpoint == nil {
-func (s *Server) RequestHeader() transport.Header {
+		addr, err := host.Extract(s.address, s.lis)
-	//TODO implement me
+		if err != nil {
-	panic("implement me")
+			s.err = err
+			return err
 		}
-
+		s.endpoint = endpoint.NewEndpoint(endpoint.Scheme("http", s.tlsConf != nil), addr)
-func (s *Server) ReplyHeader() transport.Header {
+	}
-	//TODO implement me
+	return s.err
-	panic("implement me")
 }

transport/http/status/status.go

@@ -0,0 +1,96 @@
+package status
+
+import (
+	"google.golang.org/grpc/codes"
+	"net/http"
+)
+
+const (
+	ClientClosed = 499
+)
+
+type Converter interface {
+	ToGRPCCode(code int) codes.Code
+	FromGRPCCode(code codes.Code) int
+}
+
+var DefaultConverter Converter = statusConverter{}
+
+type statusConverter struct {
+}
+
+func (s statusConverter) ToGRPCCode(code int) codes.Code {
+	switch code {
+	case http.StatusOK:
+		return codes.OK
+	case http.StatusBadRequest:
+		return codes.InvalidArgument
+	case http.StatusUnauthorized:
+		return codes.Unauthenticated
+	case http.StatusForbidden:
+		return codes.PermissionDenied
+	case http.StatusNotFound:
+		return codes.NotFound
+	case http.StatusConflict:
+		return codes.Aborted
+	case http.StatusTooManyRequests:
+		return codes.ResourceExhausted
+	case http.StatusInternalServerError:
+		return codes.Internal
+	case http.StatusNotImplemented:
+		return codes.Unimplemented
+	case http.StatusServiceUnavailable:
+		return codes.Unavailable
+	case http.StatusGatewayTimeout:
+		return codes.DeadlineExceeded
+	case ClientClosed:
+		return codes.Canceled
+	}
+	return codes.Unknown
+}
+
+func (s statusConverter) FromGRPCCode(code codes.Code) int {
+	switch code {
+	case codes.OK:
+		return http.StatusOK
+	case codes.Canceled:
+		return ClientClosed
+	case codes.Unknown:
+		return http.StatusInternalServerError
+	case codes.InvalidArgument:
+		return http.StatusBadRequest
+	case codes.DeadlineExceeded:
+		return http.StatusGatewayTimeout
+	case codes.NotFound:
+		return http.StatusNotFound
+	case codes.AlreadyExists:
+		return http.StatusConflict
+	case codes.PermissionDenied:
+		return http.StatusForbidden
+	case codes.Unauthenticated:
+		return http.StatusUnauthorized
+	case codes.ResourceExhausted:
+		return http.StatusTooManyRequests
+	case codes.FailedPrecondition:
+		return http.StatusBadRequest
+	case codes.Aborted:
+		return http.StatusConflict
+	case codes.OutOfRange:
+		return http.StatusBadRequest
+	case codes.Unimplemented:
+		return http.StatusNotImplemented
+	case codes.Internal:
+		return http.StatusInternalServerError
+	case codes.Unavailable:
+		return http.StatusServiceUnavailable
+	case codes.DataLoss:
+		return http.StatusInternalServerError
+	}
+	return http.StatusInternalServerError
+}
+func ToGRPCCode(code int) codes.Code {
+	return DefaultConverter.ToGRPCCode(code)
+}
+func FromGRPCCode(code codes.Code) int {
+	return DefaultConverter.FromGRPCCode(code)
+}

transport/http/transport.go

@@ -63,3 +63,21 @@ func RequestFromServerContext(ctx context.Context) (*http.Request, bool) {
 	}
 	return nil, false
 }
+
+type headerCarrier http.Header
+
+func (h headerCarrier) Get(key string) string {
+	return http.Header(h).Get(key)
+}
+
+func (h headerCarrier) Set(key string, value string) {
+	http.Header(h).Set(key, value)
+}
+
+func (h headerCarrier) Keys() []string {
+	kvs := make([]string, 0, len(h))
+	for k := range http.Header(h) {
+		kvs = append(kvs, k)
+	}
+	return kvs
+}