mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2025-10-31 04:32:25 -05:00
329 lines
10 KiB
Go
329 lines
10 KiB
Go
package runtime
|
|
|
|
import (
|
|
"encoding/base64"
|
|
"errors"
|
|
"fmt"
|
|
"net/url"
|
|
"regexp"
|
|
"strconv"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/grpc-ecosystem/grpc-gateway/v2/utilities"
|
|
"google.golang.org/genproto/protobuf/field_mask"
|
|
"google.golang.org/grpc/grpclog"
|
|
"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/timestamppb"
|
|
"google.golang.org/protobuf/types/known/wrapperspb"
|
|
)
|
|
|
|
var valuesKeyRegexp = regexp.MustCompile(`^(.*)\[(.*)\]$`)
|
|
|
|
var currentQueryParser QueryParameterParser = &defaultQueryParser{}
|
|
|
|
// QueryParameterParser defines interface for all query parameter parsers
|
|
type QueryParameterParser interface {
|
|
Parse(msg proto.Message, values url.Values, filter *utilities.DoubleArray) error
|
|
}
|
|
|
|
// PopulateQueryParameters parses query parameters
|
|
// into "msg" using current query parser
|
|
func PopulateQueryParameters(msg proto.Message, values url.Values, filter *utilities.DoubleArray) error {
|
|
return currentQueryParser.Parse(msg, values, filter)
|
|
}
|
|
|
|
type defaultQueryParser struct{}
|
|
|
|
// Parse populates "values" into "msg".
|
|
// A value is ignored if its key starts with one of the elements in "filter".
|
|
func (*defaultQueryParser) Parse(msg proto.Message, values url.Values, filter *utilities.DoubleArray) error {
|
|
for key, values := range values {
|
|
match := valuesKeyRegexp.FindStringSubmatch(key)
|
|
if len(match) == 3 {
|
|
key = match[1]
|
|
values = append([]string{match[2]}, values...)
|
|
}
|
|
fieldPath := strings.Split(key, ".")
|
|
if filter.HasCommonPrefix(fieldPath) {
|
|
continue
|
|
}
|
|
if err := populateFieldValueFromPath(msg.ProtoReflect(), fieldPath, values); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// PopulateFieldFromPath sets a value in a nested Protobuf structure.
|
|
func PopulateFieldFromPath(msg proto.Message, fieldPathString string, value string) error {
|
|
fieldPath := strings.Split(fieldPathString, ".")
|
|
return populateFieldValueFromPath(msg.ProtoReflect(), fieldPath, []string{value})
|
|
}
|
|
|
|
func populateFieldValueFromPath(msgValue 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 fieldDescriptor protoreflect.FieldDescriptor
|
|
for i, fieldName := range fieldPath {
|
|
fields := msgValue.Descriptor().Fields()
|
|
|
|
// Get field by name
|
|
fieldDescriptor = fields.ByName(protoreflect.Name(fieldName))
|
|
if fieldDescriptor == nil {
|
|
fieldDescriptor = fields.ByJSONName(fieldName)
|
|
if fieldDescriptor == nil {
|
|
// We're not returning an error here because this could just be
|
|
// an extra query parameter that isn't part of the request.
|
|
grpclog.Infof("field not found in %q: %q", msgValue.Descriptor().FullName(), strings.Join(fieldPath, "."))
|
|
return nil
|
|
}
|
|
}
|
|
|
|
// If this is the last element, we're done
|
|
if i == len(fieldPath)-1 {
|
|
break
|
|
}
|
|
|
|
// Only singular message fields are allowed
|
|
if fieldDescriptor.Message() == nil || fieldDescriptor.Cardinality() == protoreflect.Repeated {
|
|
return fmt.Errorf("invalid path: %q is not a message", fieldName)
|
|
}
|
|
|
|
// Get the nested message
|
|
msgValue = msgValue.Mutable(fieldDescriptor).Message()
|
|
}
|
|
|
|
// Check if oneof already set
|
|
if of := fieldDescriptor.ContainingOneof(); of != nil {
|
|
if f := msgValue.WhichOneof(of); f != nil {
|
|
return fmt.Errorf("field already set for oneof %q", of.FullName().Name())
|
|
}
|
|
}
|
|
|
|
switch {
|
|
case fieldDescriptor.IsList():
|
|
return populateRepeatedField(fieldDescriptor, msgValue.Mutable(fieldDescriptor).List(), values)
|
|
case fieldDescriptor.IsMap():
|
|
return populateMapField(fieldDescriptor, msgValue.Mutable(fieldDescriptor).Map(), values)
|
|
}
|
|
|
|
if len(values) > 1 {
|
|
return fmt.Errorf("too many values for field %q: %s", fieldDescriptor.FullName().Name(), strings.Join(values, ", "))
|
|
}
|
|
|
|
return populateField(fieldDescriptor, msgValue, values[0])
|
|
}
|
|
|
|
func populateField(fieldDescriptor protoreflect.FieldDescriptor, msgValue protoreflect.Message, value string) error {
|
|
v, err := parseField(fieldDescriptor, value)
|
|
if err != nil {
|
|
return fmt.Errorf("parsing field %q: %w", fieldDescriptor.FullName().Name(), err)
|
|
}
|
|
|
|
msgValue.Set(fieldDescriptor, v)
|
|
return nil
|
|
}
|
|
|
|
func populateRepeatedField(fieldDescriptor protoreflect.FieldDescriptor, list protoreflect.List, values []string) error {
|
|
for _, value := range values {
|
|
v, err := parseField(fieldDescriptor, value)
|
|
if err != nil {
|
|
return fmt.Errorf("parsing list %q: %w", fieldDescriptor.FullName().Name(), err)
|
|
}
|
|
list.Append(v)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func populateMapField(fieldDescriptor protoreflect.FieldDescriptor, mp protoreflect.Map, values []string) error {
|
|
if len(values) != 2 {
|
|
return fmt.Errorf("more than one value provided for key %q in map %q", values[0], fieldDescriptor.FullName())
|
|
}
|
|
|
|
key, err := parseField(fieldDescriptor.MapKey(), values[0])
|
|
if err != nil {
|
|
return fmt.Errorf("parsing map key %q: %w", fieldDescriptor.FullName().Name(), err)
|
|
}
|
|
|
|
value, err := parseField(fieldDescriptor.MapValue(), values[1])
|
|
if err != nil {
|
|
return fmt.Errorf("parsing map value %q: %w", fieldDescriptor.FullName().Name(), err)
|
|
}
|
|
|
|
mp.Set(key.MapKey(), value)
|
|
|
|
return nil
|
|
}
|
|
|
|
func parseField(fieldDescriptor protoreflect.FieldDescriptor, value string) (protoreflect.Value, error) {
|
|
switch fieldDescriptor.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(fieldDescriptor.Enum().FullName())
|
|
switch {
|
|
case errors.Is(err, protoregistry.NotFound):
|
|
return protoreflect.Value{}, fmt.Errorf("enum %q is not registered", fieldDescriptor.Enum().FullName())
|
|
case err != nil:
|
|
return protoreflect.Value{}, fmt.Errorf("failed to look up enum: %w", err)
|
|
}
|
|
// Look for enum by name
|
|
v := enum.Descriptor().Values().ByName(protoreflect.Name(value))
|
|
if v == nil {
|
|
i, err := strconv.Atoi(value)
|
|
if err != nil {
|
|
return protoreflect.Value{}, fmt.Errorf("%q is not a valid value", value)
|
|
}
|
|
// Look for enum by number
|
|
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)
|
|
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)
|
|
if err != nil {
|
|
return protoreflect.Value{}, err
|
|
}
|
|
return protoreflect.ValueOfInt64(v), nil
|
|
case protoreflect.Uint32Kind, protoreflect.Fixed32Kind:
|
|
v, err := strconv.ParseUint(value, 10, 32)
|
|
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)
|
|
if err != nil {
|
|
return protoreflect.Value{}, err
|
|
}
|
|
return protoreflect.ValueOfUint64(v), nil
|
|
case protoreflect.FloatKind:
|
|
v, err := strconv.ParseFloat(value, 32)
|
|
if err != nil {
|
|
return protoreflect.Value{}, err
|
|
}
|
|
return protoreflect.ValueOfFloat32(float32(v)), nil
|
|
case protoreflect.DoubleKind:
|
|
v, err := strconv.ParseFloat(value, 64)
|
|
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.URLEncoding.DecodeString(value)
|
|
if err != nil {
|
|
return protoreflect.Value{}, err
|
|
}
|
|
return protoreflect.ValueOfBytes(v), nil
|
|
case protoreflect.MessageKind, protoreflect.GroupKind:
|
|
return parseMessage(fieldDescriptor.Message(), value)
|
|
default:
|
|
panic(fmt.Sprintf("unknown field kind: %v", fieldDescriptor.Kind()))
|
|
}
|
|
}
|
|
|
|
func parseMessage(msgDescriptor protoreflect.MessageDescriptor, value string) (protoreflect.Value, error) {
|
|
var msg proto.Message
|
|
switch msgDescriptor.FullName() {
|
|
case "google.protobuf.Timestamp":
|
|
if value == "null" {
|
|
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 == "null" {
|
|
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)
|
|
if err != nil {
|
|
return protoreflect.Value{}, err
|
|
}
|
|
msg = &wrapperspb.DoubleValue{Value: v}
|
|
case "google.protobuf.FloatValue":
|
|
v, err := strconv.ParseFloat(value, 32)
|
|
if err != nil {
|
|
return protoreflect.Value{}, err
|
|
}
|
|
msg = &wrapperspb.FloatValue{Value: float32(v)}
|
|
case "google.protobuf.Int64Value":
|
|
v, err := strconv.ParseInt(value, 10, 64)
|
|
if err != nil {
|
|
return protoreflect.Value{}, err
|
|
}
|
|
msg = &wrapperspb.Int64Value{Value: v}
|
|
case "google.protobuf.Int32Value":
|
|
v, err := strconv.ParseInt(value, 10, 32)
|
|
if err != nil {
|
|
return protoreflect.Value{}, err
|
|
}
|
|
msg = &wrapperspb.Int32Value{Value: int32(v)}
|
|
case "google.protobuf.UInt64Value":
|
|
v, err := strconv.ParseUint(value, 10, 64)
|
|
if err != nil {
|
|
return protoreflect.Value{}, err
|
|
}
|
|
msg = &wrapperspb.UInt64Value{Value: v}
|
|
case "google.protobuf.UInt32Value":
|
|
v, err := strconv.ParseUint(value, 10, 32)
|
|
if err != nil {
|
|
return protoreflect.Value{}, err
|
|
}
|
|
msg = &wrapperspb.UInt32Value{Value: uint32(v)}
|
|
case "google.protobuf.BoolValue":
|
|
v, err := strconv.ParseBool(value)
|
|
if err != nil {
|
|
return protoreflect.Value{}, err
|
|
}
|
|
msg = &wrapperspb.BoolValue{Value: v}
|
|
case "google.protobuf.StringValue":
|
|
msg = &wrapperspb.StringValue{Value: value}
|
|
case "google.protobuf.BytesValue":
|
|
v, err := base64.URLEncoding.DecodeString(value)
|
|
if err != nil {
|
|
return protoreflect.Value{}, err
|
|
}
|
|
msg = &wrapperspb.BytesValue{Value: v}
|
|
case "google.protobuf.FieldMask":
|
|
fm := &field_mask.FieldMask{}
|
|
fm.Paths = append(fm.Paths, strings.Split(value, ",")...)
|
|
msg = fm
|
|
default:
|
|
return protoreflect.Value{}, fmt.Errorf("unsupported message type: %q", string(msgDescriptor.FullName()))
|
|
}
|
|
|
|
return protoreflect.ValueOfMessage(msg.ProtoReflect()), nil
|
|
}
|