mirror of
https://github.com/cwinfo/matterbridge.git
synced 2024-11-30 07:21:35 +00:00
106 lines
2.4 KiB
Go
106 lines
2.4 KiB
Go
// Copyright © 2015 Steve Francia <spf@spf13.com>.
|
|
//
|
|
// Use of this source code is governed by an MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
// Package remote integrates the remote features of Viper.
|
|
package remote
|
|
|
|
import (
|
|
"bytes"
|
|
"io"
|
|
"os"
|
|
|
|
"github.com/spf13/viper"
|
|
crypt "github.com/xordataexchange/crypt/config"
|
|
)
|
|
|
|
type remoteConfigProvider struct{}
|
|
|
|
func (rc remoteConfigProvider) Get(rp viper.RemoteProvider) (io.Reader, error) {
|
|
cm, err := getConfigManager(rp)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
b, err := cm.Get(rp.Path())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return bytes.NewReader(b), nil
|
|
}
|
|
|
|
func (rc remoteConfigProvider) Watch(rp viper.RemoteProvider) (io.Reader, error) {
|
|
cm, err := getConfigManager(rp)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
resp, err := cm.Get(rp.Path())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return bytes.NewReader(resp), nil
|
|
}
|
|
|
|
func (rc remoteConfigProvider) WatchChannel(rp viper.RemoteProvider) (<-chan *viper.RemoteResponse, chan bool) {
|
|
cm, err := getConfigManager(rp)
|
|
if err != nil {
|
|
return nil, nil
|
|
}
|
|
quit := make(chan bool)
|
|
quitwc := make(chan bool)
|
|
viperResponsCh := make(chan *viper.RemoteResponse)
|
|
cryptoResponseCh := cm.Watch(rp.Path(), quit)
|
|
// need this function to convert the Channel response form crypt.Response to viper.Response
|
|
go func(cr <-chan *crypt.Response, vr chan<- *viper.RemoteResponse, quitwc <-chan bool, quit chan<- bool) {
|
|
for {
|
|
select {
|
|
case <-quitwc:
|
|
quit <- true
|
|
return
|
|
case resp := <-cr:
|
|
vr <- &viper.RemoteResponse{
|
|
Error: resp.Error,
|
|
Value: resp.Value,
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
}(cryptoResponseCh, viperResponsCh, quitwc, quit)
|
|
|
|
return viperResponsCh, quitwc
|
|
}
|
|
|
|
func getConfigManager(rp viper.RemoteProvider) (crypt.ConfigManager, error) {
|
|
var cm crypt.ConfigManager
|
|
var err error
|
|
|
|
if rp.SecretKeyring() != "" {
|
|
kr, err := os.Open(rp.SecretKeyring())
|
|
defer kr.Close()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if rp.Provider() == "etcd" {
|
|
cm, err = crypt.NewEtcdConfigManager([]string{rp.Endpoint()}, kr)
|
|
} else {
|
|
cm, err = crypt.NewConsulConfigManager([]string{rp.Endpoint()}, kr)
|
|
}
|
|
} else {
|
|
if rp.Provider() == "etcd" {
|
|
cm, err = crypt.NewStandardEtcdConfigManager([]string{rp.Endpoint()})
|
|
} else {
|
|
cm, err = crypt.NewStandardConsulConfigManager([]string{rp.Endpoint()})
|
|
}
|
|
}
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return cm, nil
|
|
}
|
|
|
|
func init() {
|
|
viper.RemoteConfig = &remoteConfigProvider{}
|
|
}
|