mirror of https://github.com/hashicorp/consul
62 lines
1.4 KiB
Go
62 lines
1.4 KiB
Go
// Copyright (c) HashiCorp, Inc.
|
|
// SPDX-License-Identifier: MPL-2.0
|
|
|
|
package external
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
"github.com/hashicorp/consul/agent/structs"
|
|
"github.com/mitchellh/mapstructure"
|
|
"google.golang.org/grpc/metadata"
|
|
)
|
|
|
|
// QueryOptionsFromContext returns the query options in the gRPC metadata attached to the
|
|
// given context.
|
|
func QueryOptionsFromContext(ctx context.Context) (structs.QueryOptions, error) {
|
|
options := structs.QueryOptions{}
|
|
md, ok := metadata.FromIncomingContext(ctx)
|
|
if !ok {
|
|
return options, nil
|
|
}
|
|
|
|
m := map[string]string{}
|
|
for k, v := range md {
|
|
m[k] = v[0]
|
|
}
|
|
|
|
config := &mapstructure.DecoderConfig{
|
|
Metadata: nil,
|
|
Result: &options,
|
|
WeaklyTypedInput: true,
|
|
DecodeHook: mapstructure.StringToTimeDurationHookFunc(),
|
|
}
|
|
|
|
decoder, err := mapstructure.NewDecoder(config)
|
|
if err != nil {
|
|
return structs.QueryOptions{}, err
|
|
}
|
|
|
|
err = decoder.Decode(m)
|
|
if err != nil {
|
|
return structs.QueryOptions{}, err
|
|
}
|
|
|
|
return options, nil
|
|
}
|
|
|
|
// ContextWithQueryOptions returns a context with the given query options attached.
|
|
func ContextWithQueryOptions(ctx context.Context, options structs.QueryOptions) (context.Context, error) {
|
|
md := metadata.MD{}
|
|
m := map[string]interface{}{}
|
|
err := mapstructure.Decode(options, &m)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
for k, v := range m {
|
|
md.Set(k, fmt.Sprintf("%v", v))
|
|
}
|
|
return metadata.NewOutgoingContext(ctx, md), nil
|
|
}
|