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provider_consul_config.go
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/
provider_consul_config.go
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package ca
import (
"fmt"
"reflect"
"time"
"github.com/hashicorp/consul/agent/structs"
"github.com/mitchellh/mapstructure"
)
func ParseConsulCAConfig(raw map[string]interface{}) (*structs.ConsulCAProviderConfig, error) {
var config structs.ConsulCAProviderConfig
decodeConf := &mapstructure.DecoderConfig{
DecodeHook: ParseDurationFunc(),
ErrorUnused: true,
Result: &config,
WeaklyTypedInput: true,
}
decoder, err := mapstructure.NewDecoder(decodeConf)
if err != nil {
return nil, err
}
if err := decoder.Decode(raw); err != nil {
return nil, fmt.Errorf("error decoding config: %s", err)
}
if config.PrivateKey == "" && config.RootCert != "" {
return nil, fmt.Errorf("must provide a private key when providing a root cert")
}
return &config, nil
}
// ParseDurationFunc is a mapstructure hook for decoding a string or
// []uint8 into a time.Duration value.
func ParseDurationFunc() mapstructure.DecodeHookFunc {
return func(
f reflect.Type,
t reflect.Type,
data interface{}) (interface{}, error) {
var v time.Duration
if t != reflect.TypeOf(v) {
return data, nil
}
switch {
case f.Kind() == reflect.String:
if dur, err := time.ParseDuration(data.(string)); err != nil {
return nil, err
} else {
v = dur
}
return v, nil
case f == reflect.SliceOf(reflect.TypeOf(uint8(0))):
s := Uint8ToString(data.([]uint8))
if dur, err := time.ParseDuration(s); err != nil {
return nil, err
} else {
v = dur
}
return v, nil
default:
return data, nil
}
}
}
func Uint8ToString(bs []uint8) string {
b := make([]byte, len(bs))
for i, v := range bs {
b[i] = byte(v)
}
return string(b)
}