67 lines
2.3 KiB
Go
67 lines
2.3 KiB
Go
// Copyright 2023-2025 Buf Technologies, Inc.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package protovalidate
|
|
|
|
import (
|
|
"buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go/buf/validate"
|
|
"google.golang.org/protobuf/proto"
|
|
"google.golang.org/protobuf/reflect/protoreflect"
|
|
)
|
|
|
|
//nolint:gochecknoglobals
|
|
var (
|
|
enumRuleDescriptor = (&validate.FieldRules{}).ProtoReflect().Descriptor().Fields().ByName("enum")
|
|
enumDefinedOnlyRuleDescriptor = (&validate.EnumRules{}).ProtoReflect().Descriptor().Fields().ByName("defined_only")
|
|
enumDefinedOnlyRulePath = validate.FieldPath_builder{
|
|
Elements: []*validate.FieldPathElement{
|
|
fieldPathElement(enumRuleDescriptor),
|
|
fieldPathElement(enumDefinedOnlyRuleDescriptor),
|
|
},
|
|
}.Build()
|
|
)
|
|
|
|
// definedEnum is an evaluator that checks an enum value being a member of
|
|
// the defined values exclusively. This check is handled outside CEL as enums
|
|
// are completely type erased to integers.
|
|
type definedEnum struct {
|
|
base
|
|
|
|
// ValueDescriptors captures all the defined values for this enum
|
|
ValueDescriptors protoreflect.EnumValueDescriptors
|
|
}
|
|
|
|
func (d definedEnum) Evaluate(_ protoreflect.Message, val protoreflect.Value, _ *validationConfig) error {
|
|
if d.ValueDescriptors.ByNumber(val.Enum()) == nil {
|
|
return &ValidationError{Violations: []*Violation{{
|
|
Proto: validate.Violation_builder{
|
|
Field: d.fieldPath(),
|
|
Rule: d.rulePath(enumDefinedOnlyRulePath),
|
|
RuleId: proto.String("enum.defined_only"),
|
|
Message: proto.String("value must be one of the defined enum values"),
|
|
}.Build(),
|
|
FieldValue: val,
|
|
FieldDescriptor: d.Descriptor,
|
|
RuleValue: protoreflect.ValueOfBool(true),
|
|
RuleDescriptor: enumDefinedOnlyRuleDescriptor,
|
|
}}}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (d definedEnum) Tautology() bool {
|
|
return false
|
|
}
|
|
|
|
var _ evaluator = definedEnum{}
|