[VOL-4291] Rw-core updates for gRPC migration
Change-Id: I8d5a554409115b29318089671ca4e1ab3fa98810
diff --git a/vendor/github.com/golang/protobuf/jsonpb/decode.go b/vendor/github.com/golang/protobuf/jsonpb/decode.go
new file mode 100644
index 0000000..60e82ca
--- /dev/null
+++ b/vendor/github.com/golang/protobuf/jsonpb/decode.go
@@ -0,0 +1,524 @@
+// Copyright 2015 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 jsonpb
+
+import (
+ "encoding/json"
+ "errors"
+ "fmt"
+ "io"
+ "math"
+ "reflect"
+ "strconv"
+ "strings"
+ "time"
+
+ "github.com/golang/protobuf/proto"
+ "google.golang.org/protobuf/encoding/protojson"
+ protoV2 "google.golang.org/protobuf/proto"
+ "google.golang.org/protobuf/reflect/protoreflect"
+ "google.golang.org/protobuf/reflect/protoregistry"
+)
+
+const wrapJSONUnmarshalV2 = false
+
+// UnmarshalNext unmarshals the next JSON object from d into m.
+func UnmarshalNext(d *json.Decoder, m proto.Message) error {
+ return new(Unmarshaler).UnmarshalNext(d, m)
+}
+
+// Unmarshal unmarshals a JSON object from r into m.
+func Unmarshal(r io.Reader, m proto.Message) error {
+ return new(Unmarshaler).Unmarshal(r, m)
+}
+
+// UnmarshalString unmarshals a JSON object from s into m.
+func UnmarshalString(s string, m proto.Message) error {
+ return new(Unmarshaler).Unmarshal(strings.NewReader(s), m)
+}
+
+// Unmarshaler is a configurable object for converting from a JSON
+// representation to a protocol buffer object.
+type Unmarshaler struct {
+ // AllowUnknownFields specifies whether to allow messages to contain
+ // unknown JSON fields, as opposed to failing to unmarshal.
+ AllowUnknownFields bool
+
+ // AnyResolver is used to resolve the google.protobuf.Any well-known type.
+ // If unset, the global registry is used by default.
+ AnyResolver AnyResolver
+}
+
+// JSONPBUnmarshaler is implemented by protobuf messages that customize the way
+// they are unmarshaled from JSON. Messages that implement this should also
+// implement JSONPBMarshaler so that the custom format can be produced.
+//
+// The JSON unmarshaling must follow the JSON to proto specification:
+// https://developers.google.com/protocol-buffers/docs/proto3#json
+//
+// Deprecated: Custom types should implement protobuf reflection instead.
+type JSONPBUnmarshaler interface {
+ UnmarshalJSONPB(*Unmarshaler, []byte) error
+}
+
+// Unmarshal unmarshals a JSON object from r into m.
+func (u *Unmarshaler) Unmarshal(r io.Reader, m proto.Message) error {
+ return u.UnmarshalNext(json.NewDecoder(r), m)
+}
+
+// UnmarshalNext unmarshals the next JSON object from d into m.
+func (u *Unmarshaler) UnmarshalNext(d *json.Decoder, m proto.Message) error {
+ if m == nil {
+ return errors.New("invalid nil message")
+ }
+
+ // Parse the next JSON object from the stream.
+ raw := json.RawMessage{}
+ if err := d.Decode(&raw); err != nil {
+ return err
+ }
+
+ // Check for custom unmarshalers first since they may not properly
+ // implement protobuf reflection that the logic below relies on.
+ if jsu, ok := m.(JSONPBUnmarshaler); ok {
+ return jsu.UnmarshalJSONPB(u, raw)
+ }
+
+ mr := proto.MessageReflect(m)
+
+ // NOTE: For historical reasons, a top-level null is treated as a noop.
+ // This is incorrect, but kept for compatibility.
+ if string(raw) == "null" && mr.Descriptor().FullName() != "google.protobuf.Value" {
+ return nil
+ }
+
+ if wrapJSONUnmarshalV2 {
+ // NOTE: If input message is non-empty, we need to preserve merge semantics
+ // of the old jsonpb implementation. These semantics are not supported by
+ // the protobuf JSON specification.
+ isEmpty := true
+ mr.Range(func(protoreflect.FieldDescriptor, protoreflect.Value) bool {
+ isEmpty = false // at least one iteration implies non-empty
+ return false
+ })
+ if !isEmpty {
+ // Perform unmarshaling into a newly allocated, empty message.
+ mr = mr.New()
+
+ // Use a defer to copy all unmarshaled fields into the original message.
+ dst := proto.MessageReflect(m)
+ defer mr.Range(func(fd protoreflect.FieldDescriptor, v protoreflect.Value) bool {
+ dst.Set(fd, v)
+ return true
+ })
+ }
+
+ // Unmarshal using the v2 JSON unmarshaler.
+ opts := protojson.UnmarshalOptions{
+ DiscardUnknown: u.AllowUnknownFields,
+ }
+ if u.AnyResolver != nil {
+ opts.Resolver = anyResolver{u.AnyResolver}
+ }
+ return opts.Unmarshal(raw, mr.Interface())
+ } else {
+ if err := u.unmarshalMessage(mr, raw); err != nil {
+ return err
+ }
+ return protoV2.CheckInitialized(mr.Interface())
+ }
+}
+
+func (u *Unmarshaler) unmarshalMessage(m protoreflect.Message, in []byte) error {
+ md := m.Descriptor()
+ fds := md.Fields()
+
+ if jsu, ok := proto.MessageV1(m.Interface()).(JSONPBUnmarshaler); ok {
+ return jsu.UnmarshalJSONPB(u, in)
+ }
+
+ if string(in) == "null" && md.FullName() != "google.protobuf.Value" {
+ return nil
+ }
+
+ switch wellKnownType(md.FullName()) {
+ case "Any":
+ var jsonObject map[string]json.RawMessage
+ if err := json.Unmarshal(in, &jsonObject); err != nil {
+ return err
+ }
+
+ rawTypeURL, ok := jsonObject["@type"]
+ if !ok {
+ return errors.New("Any JSON doesn't have '@type'")
+ }
+ typeURL, err := unquoteString(string(rawTypeURL))
+ if err != nil {
+ return fmt.Errorf("can't unmarshal Any's '@type': %q", rawTypeURL)
+ }
+ m.Set(fds.ByNumber(1), protoreflect.ValueOfString(typeURL))
+
+ var m2 protoreflect.Message
+ if u.AnyResolver != nil {
+ mi, err := u.AnyResolver.Resolve(typeURL)
+ if err != nil {
+ return err
+ }
+ m2 = proto.MessageReflect(mi)
+ } else {
+ mt, err := protoregistry.GlobalTypes.FindMessageByURL(typeURL)
+ if err != nil {
+ if err == protoregistry.NotFound {
+ return fmt.Errorf("could not resolve Any message type: %v", typeURL)
+ }
+ return err
+ }
+ m2 = mt.New()
+ }
+
+ if wellKnownType(m2.Descriptor().FullName()) != "" {
+ rawValue, ok := jsonObject["value"]
+ if !ok {
+ return errors.New("Any JSON doesn't have 'value'")
+ }
+ if err := u.unmarshalMessage(m2, rawValue); err != nil {
+ return fmt.Errorf("can't unmarshal Any nested proto %v: %v", typeURL, err)
+ }
+ } else {
+ delete(jsonObject, "@type")
+ rawJSON, err := json.Marshal(jsonObject)
+ if err != nil {
+ return fmt.Errorf("can't generate JSON for Any's nested proto to be unmarshaled: %v", err)
+ }
+ if err = u.unmarshalMessage(m2, rawJSON); err != nil {
+ return fmt.Errorf("can't unmarshal Any nested proto %v: %v", typeURL, err)
+ }
+ }
+
+ rawWire, err := protoV2.Marshal(m2.Interface())
+ if err != nil {
+ return fmt.Errorf("can't marshal proto %v into Any.Value: %v", typeURL, err)
+ }
+ m.Set(fds.ByNumber(2), protoreflect.ValueOfBytes(rawWire))
+ return nil
+ case "BoolValue", "BytesValue", "StringValue",
+ "Int32Value", "UInt32Value", "FloatValue",
+ "Int64Value", "UInt64Value", "DoubleValue":
+ fd := fds.ByNumber(1)
+ v, err := u.unmarshalValue(m.NewField(fd), in, fd)
+ if err != nil {
+ return err
+ }
+ m.Set(fd, v)
+ return nil
+ case "Duration":
+ v, err := unquoteString(string(in))
+ if err != nil {
+ return err
+ }
+ d, err := time.ParseDuration(v)
+ if err != nil {
+ return fmt.Errorf("bad Duration: %v", err)
+ }
+
+ sec := d.Nanoseconds() / 1e9
+ nsec := d.Nanoseconds() % 1e9
+ m.Set(fds.ByNumber(1), protoreflect.ValueOfInt64(int64(sec)))
+ m.Set(fds.ByNumber(2), protoreflect.ValueOfInt32(int32(nsec)))
+ return nil
+ case "Timestamp":
+ v, err := unquoteString(string(in))
+ if err != nil {
+ return err
+ }
+ t, err := time.Parse(time.RFC3339Nano, v)
+ if err != nil {
+ return fmt.Errorf("bad Timestamp: %v", err)
+ }
+
+ sec := t.Unix()
+ nsec := t.Nanosecond()
+ m.Set(fds.ByNumber(1), protoreflect.ValueOfInt64(int64(sec)))
+ m.Set(fds.ByNumber(2), protoreflect.ValueOfInt32(int32(nsec)))
+ return nil
+ case "Value":
+ switch {
+ case string(in) == "null":
+ m.Set(fds.ByNumber(1), protoreflect.ValueOfEnum(0))
+ case string(in) == "true":
+ m.Set(fds.ByNumber(4), protoreflect.ValueOfBool(true))
+ case string(in) == "false":
+ m.Set(fds.ByNumber(4), protoreflect.ValueOfBool(false))
+ case hasPrefixAndSuffix('"', in, '"'):
+ s, err := unquoteString(string(in))
+ if err != nil {
+ return fmt.Errorf("unrecognized type for Value %q", in)
+ }
+ m.Set(fds.ByNumber(3), protoreflect.ValueOfString(s))
+ case hasPrefixAndSuffix('[', in, ']'):
+ v := m.Mutable(fds.ByNumber(6))
+ return u.unmarshalMessage(v.Message(), in)
+ case hasPrefixAndSuffix('{', in, '}'):
+ v := m.Mutable(fds.ByNumber(5))
+ return u.unmarshalMessage(v.Message(), in)
+ default:
+ f, err := strconv.ParseFloat(string(in), 0)
+ if err != nil {
+ return fmt.Errorf("unrecognized type for Value %q", in)
+ }
+ m.Set(fds.ByNumber(2), protoreflect.ValueOfFloat64(f))
+ }
+ return nil
+ case "ListValue":
+ var jsonArray []json.RawMessage
+ if err := json.Unmarshal(in, &jsonArray); err != nil {
+ return fmt.Errorf("bad ListValue: %v", err)
+ }
+
+ lv := m.Mutable(fds.ByNumber(1)).List()
+ for _, raw := range jsonArray {
+ ve := lv.NewElement()
+ if err := u.unmarshalMessage(ve.Message(), raw); err != nil {
+ return err
+ }
+ lv.Append(ve)
+ }
+ return nil
+ case "Struct":
+ var jsonObject map[string]json.RawMessage
+ if err := json.Unmarshal(in, &jsonObject); err != nil {
+ return fmt.Errorf("bad StructValue: %v", err)
+ }
+
+ mv := m.Mutable(fds.ByNumber(1)).Map()
+ for key, raw := range jsonObject {
+ kv := protoreflect.ValueOf(key).MapKey()
+ vv := mv.NewValue()
+ if err := u.unmarshalMessage(vv.Message(), raw); err != nil {
+ return fmt.Errorf("bad value in StructValue for key %q: %v", key, err)
+ }
+ mv.Set(kv, vv)
+ }
+ return nil
+ }
+
+ var jsonObject map[string]json.RawMessage
+ if err := json.Unmarshal(in, &jsonObject); err != nil {
+ return err
+ }
+
+ // Handle known fields.
+ for i := 0; i < fds.Len(); i++ {
+ fd := fds.Get(i)
+ if fd.IsWeak() && fd.Message().IsPlaceholder() {
+ continue // weak reference is not linked in
+ }
+
+ // Search for any raw JSON value associated with this field.
+ var raw json.RawMessage
+ name := string(fd.Name())
+ if fd.Kind() == protoreflect.GroupKind {
+ name = string(fd.Message().Name())
+ }
+ if v, ok := jsonObject[name]; ok {
+ delete(jsonObject, name)
+ raw = v
+ }
+ name = string(fd.JSONName())
+ if v, ok := jsonObject[name]; ok {
+ delete(jsonObject, name)
+ raw = v
+ }
+
+ field := m.NewField(fd)
+ // Unmarshal the field value.
+ if raw == nil || (string(raw) == "null" && !isSingularWellKnownValue(fd) && !isSingularJSONPBUnmarshaler(field, fd)) {
+ continue
+ }
+ v, err := u.unmarshalValue(field, raw, fd)
+ if err != nil {
+ return err
+ }
+ m.Set(fd, v)
+ }
+
+ // Handle extension fields.
+ for name, raw := range jsonObject {
+ if !strings.HasPrefix(name, "[") || !strings.HasSuffix(name, "]") {
+ continue
+ }
+
+ // Resolve the extension field by name.
+ xname := protoreflect.FullName(name[len("[") : len(name)-len("]")])
+ xt, _ := protoregistry.GlobalTypes.FindExtensionByName(xname)
+ if xt == nil && isMessageSet(md) {
+ xt, _ = protoregistry.GlobalTypes.FindExtensionByName(xname.Append("message_set_extension"))
+ }
+ if xt == nil {
+ continue
+ }
+ delete(jsonObject, name)
+ fd := xt.TypeDescriptor()
+ if fd.ContainingMessage().FullName() != m.Descriptor().FullName() {
+ return fmt.Errorf("extension field %q does not extend message %q", xname, m.Descriptor().FullName())
+ }
+
+ field := m.NewField(fd)
+ // Unmarshal the field value.
+ if raw == nil || (string(raw) == "null" && !isSingularWellKnownValue(fd) && !isSingularJSONPBUnmarshaler(field, fd)) {
+ continue
+ }
+ v, err := u.unmarshalValue(field, raw, fd)
+ if err != nil {
+ return err
+ }
+ m.Set(fd, v)
+ }
+
+ if !u.AllowUnknownFields && len(jsonObject) > 0 {
+ for name := range jsonObject {
+ return fmt.Errorf("unknown field %q in %v", name, md.FullName())
+ }
+ }
+ return nil
+}
+
+func isSingularWellKnownValue(fd protoreflect.FieldDescriptor) bool {
+ if md := fd.Message(); md != nil {
+ return md.FullName() == "google.protobuf.Value" && fd.Cardinality() != protoreflect.Repeated
+ }
+ return false
+}
+
+func isSingularJSONPBUnmarshaler(v protoreflect.Value, fd protoreflect.FieldDescriptor) bool {
+ if fd.Message() != nil && fd.Cardinality() != protoreflect.Repeated {
+ _, ok := proto.MessageV1(v.Interface()).(JSONPBUnmarshaler)
+ return ok
+ }
+ return false
+}
+
+func (u *Unmarshaler) unmarshalValue(v protoreflect.Value, in []byte, fd protoreflect.FieldDescriptor) (protoreflect.Value, error) {
+ switch {
+ case fd.IsList():
+ var jsonArray []json.RawMessage
+ if err := json.Unmarshal(in, &jsonArray); err != nil {
+ return v, err
+ }
+ lv := v.List()
+ for _, raw := range jsonArray {
+ ve, err := u.unmarshalSingularValue(lv.NewElement(), raw, fd)
+ if err != nil {
+ return v, err
+ }
+ lv.Append(ve)
+ }
+ return v, nil
+ case fd.IsMap():
+ var jsonObject map[string]json.RawMessage
+ if err := json.Unmarshal(in, &jsonObject); err != nil {
+ return v, err
+ }
+ kfd := fd.MapKey()
+ vfd := fd.MapValue()
+ mv := v.Map()
+ for key, raw := range jsonObject {
+ var kv protoreflect.MapKey
+ if kfd.Kind() == protoreflect.StringKind {
+ kv = protoreflect.ValueOf(key).MapKey()
+ } else {
+ v, err := u.unmarshalSingularValue(kfd.Default(), []byte(key), kfd)
+ if err != nil {
+ return v, err
+ }
+ kv = v.MapKey()
+ }
+
+ vv, err := u.unmarshalSingularValue(mv.NewValue(), raw, vfd)
+ if err != nil {
+ return v, err
+ }
+ mv.Set(kv, vv)
+ }
+ return v, nil
+ default:
+ return u.unmarshalSingularValue(v, in, fd)
+ }
+}
+
+var nonFinite = map[string]float64{
+ `"NaN"`: math.NaN(),
+ `"Infinity"`: math.Inf(+1),
+ `"-Infinity"`: math.Inf(-1),
+}
+
+func (u *Unmarshaler) unmarshalSingularValue(v protoreflect.Value, in []byte, fd protoreflect.FieldDescriptor) (protoreflect.Value, error) {
+ switch fd.Kind() {
+ case protoreflect.BoolKind:
+ return unmarshalValue(in, new(bool))
+ case protoreflect.Int32Kind, protoreflect.Sint32Kind, protoreflect.Sfixed32Kind:
+ return unmarshalValue(trimQuote(in), new(int32))
+ case protoreflect.Int64Kind, protoreflect.Sint64Kind, protoreflect.Sfixed64Kind:
+ return unmarshalValue(trimQuote(in), new(int64))
+ case protoreflect.Uint32Kind, protoreflect.Fixed32Kind:
+ return unmarshalValue(trimQuote(in), new(uint32))
+ case protoreflect.Uint64Kind, protoreflect.Fixed64Kind:
+ return unmarshalValue(trimQuote(in), new(uint64))
+ case protoreflect.FloatKind:
+ if f, ok := nonFinite[string(in)]; ok {
+ return protoreflect.ValueOfFloat32(float32(f)), nil
+ }
+ return unmarshalValue(trimQuote(in), new(float32))
+ case protoreflect.DoubleKind:
+ if f, ok := nonFinite[string(in)]; ok {
+ return protoreflect.ValueOfFloat64(float64(f)), nil
+ }
+ return unmarshalValue(trimQuote(in), new(float64))
+ case protoreflect.StringKind:
+ return unmarshalValue(in, new(string))
+ case protoreflect.BytesKind:
+ return unmarshalValue(in, new([]byte))
+ case protoreflect.EnumKind:
+ if hasPrefixAndSuffix('"', in, '"') {
+ vd := fd.Enum().Values().ByName(protoreflect.Name(trimQuote(in)))
+ if vd == nil {
+ return v, fmt.Errorf("unknown value %q for enum %s", in, fd.Enum().FullName())
+ }
+ return protoreflect.ValueOfEnum(vd.Number()), nil
+ }
+ return unmarshalValue(in, new(protoreflect.EnumNumber))
+ case protoreflect.MessageKind, protoreflect.GroupKind:
+ err := u.unmarshalMessage(v.Message(), in)
+ return v, err
+ default:
+ panic(fmt.Sprintf("invalid kind %v", fd.Kind()))
+ }
+}
+
+func unmarshalValue(in []byte, v interface{}) (protoreflect.Value, error) {
+ err := json.Unmarshal(in, v)
+ return protoreflect.ValueOf(reflect.ValueOf(v).Elem().Interface()), err
+}
+
+func unquoteString(in string) (out string, err error) {
+ err = json.Unmarshal([]byte(in), &out)
+ return out, err
+}
+
+func hasPrefixAndSuffix(prefix byte, in []byte, suffix byte) bool {
+ if len(in) >= 2 && in[0] == prefix && in[len(in)-1] == suffix {
+ return true
+ }
+ return false
+}
+
+// trimQuote is like unquoteString but simply strips surrounding quotes.
+// This is incorrect, but is behavior done by the legacy implementation.
+func trimQuote(in []byte) []byte {
+ if len(in) >= 2 && in[0] == '"' && in[len(in)-1] == '"' {
+ in = in[1 : len(in)-1]
+ }
+ return in
+}