343 lines
8.4 KiB
Go
343 lines
8.4 KiB
Go
/*
|
||
* Minio Cloud Storage, (C) 2016, 2017 Minio, 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 cmd
|
||
|
||
import (
|
||
"errors"
|
||
"fmt"
|
||
"io/ioutil"
|
||
"sync"
|
||
|
||
"github.com/minio/minio/pkg/auth"
|
||
"github.com/minio/minio/pkg/quick"
|
||
"github.com/tidwall/gjson"
|
||
)
|
||
|
||
// Config version
|
||
const v20 = "20"
|
||
|
||
var (
|
||
// serverConfig server config.
|
||
serverConfig *serverConfigV20
|
||
serverConfigMu sync.RWMutex
|
||
)
|
||
|
||
// serverConfigV20 server configuration version '20' which is like
|
||
// version '19' except it adds support for VirtualHostDomain
|
||
type serverConfigV20 struct {
|
||
sync.RWMutex
|
||
Version string `json:"version"`
|
||
|
||
// S3 API configuration.
|
||
Credential auth.Credentials `json:"credential"`
|
||
Region string `json:"region"`
|
||
Browser BrowserFlag `json:"browser"`
|
||
Domain string `json:"domain"`
|
||
|
||
// Additional error logging configuration.
|
||
Logger *loggers `json:"logger"`
|
||
|
||
// Notification queue configuration.
|
||
Notify *notifier `json:"notify"`
|
||
}
|
||
|
||
// GetVersion get current config version.
|
||
func (s *serverConfigV20) GetVersion() string {
|
||
s.RLock()
|
||
defer s.RUnlock()
|
||
|
||
return s.Version
|
||
}
|
||
|
||
// SetRegion set a new region.
|
||
func (s *serverConfigV20) SetRegion(region string) {
|
||
s.Lock()
|
||
defer s.Unlock()
|
||
|
||
// Save new region.
|
||
s.Region = region
|
||
}
|
||
|
||
// GetRegion get current region.
|
||
func (s *serverConfigV20) GetRegion() string {
|
||
s.RLock()
|
||
defer s.RUnlock()
|
||
|
||
return s.Region
|
||
}
|
||
|
||
// SetCredentials set new credentials. SetCredential returns the previous credential.
|
||
func (s *serverConfigV20) SetCredential(creds auth.Credentials) (prevCred auth.Credentials) {
|
||
s.Lock()
|
||
defer s.Unlock()
|
||
|
||
// Save previous credential.
|
||
prevCred = s.Credential
|
||
|
||
// Set updated credential.
|
||
s.Credential = creds
|
||
|
||
// Return previous credential.
|
||
return prevCred
|
||
}
|
||
|
||
// GetCredentials get current credentials.
|
||
func (s *serverConfigV20) GetCredential() auth.Credentials {
|
||
s.RLock()
|
||
defer s.RUnlock()
|
||
|
||
return s.Credential
|
||
}
|
||
|
||
// SetBrowser set if browser is enabled.
|
||
func (s *serverConfigV20) SetBrowser(b bool) {
|
||
s.Lock()
|
||
defer s.Unlock()
|
||
|
||
// Set the new value.
|
||
s.Browser = BrowserFlag(b)
|
||
}
|
||
|
||
// GetCredentials get current credentials.
|
||
func (s *serverConfigV20) GetBrowser() bool {
|
||
s.RLock()
|
||
defer s.RUnlock()
|
||
|
||
return bool(s.Browser)
|
||
}
|
||
|
||
// Save config.
|
||
func (s *serverConfigV20) Save() error {
|
||
s.RLock()
|
||
defer s.RUnlock()
|
||
|
||
// Save config file.
|
||
return quick.Save(getConfigFile(), s)
|
||
}
|
||
|
||
func newServerConfigV20() *serverConfigV20 {
|
||
srvCfg := &serverConfigV20{
|
||
Version: v20,
|
||
Credential: auth.MustGetNewCredentials(),
|
||
Region: globalMinioDefaultRegion,
|
||
Browser: true,
|
||
Logger: &loggers{},
|
||
Notify: ¬ifier{},
|
||
}
|
||
|
||
// Enable console logger by default on a fresh run.
|
||
srvCfg.Logger.Console = NewConsoleLogger()
|
||
|
||
// Make sure to initialize notification configs.
|
||
srvCfg.Notify.AMQP = make(map[string]amqpNotify)
|
||
srvCfg.Notify.AMQP["1"] = amqpNotify{}
|
||
srvCfg.Notify.MQTT = make(map[string]mqttNotify)
|
||
srvCfg.Notify.MQTT["1"] = mqttNotify{}
|
||
srvCfg.Notify.ElasticSearch = make(map[string]elasticSearchNotify)
|
||
srvCfg.Notify.ElasticSearch["1"] = elasticSearchNotify{}
|
||
srvCfg.Notify.Redis = make(map[string]redisNotify)
|
||
srvCfg.Notify.Redis["1"] = redisNotify{}
|
||
srvCfg.Notify.NATS = make(map[string]natsNotify)
|
||
srvCfg.Notify.NATS["1"] = natsNotify{}
|
||
srvCfg.Notify.PostgreSQL = make(map[string]postgreSQLNotify)
|
||
srvCfg.Notify.PostgreSQL["1"] = postgreSQLNotify{}
|
||
srvCfg.Notify.MySQL = make(map[string]mySQLNotify)
|
||
srvCfg.Notify.MySQL["1"] = mySQLNotify{}
|
||
srvCfg.Notify.Kafka = make(map[string]kafkaNotify)
|
||
srvCfg.Notify.Kafka["1"] = kafkaNotify{}
|
||
srvCfg.Notify.Webhook = make(map[string]webhookNotify)
|
||
srvCfg.Notify.Webhook["1"] = webhookNotify{}
|
||
|
||
return srvCfg
|
||
}
|
||
|
||
// newConfig - initialize a new server config, saves env parameters if
|
||
// found, otherwise use default parameters
|
||
func newConfig() error {
|
||
// Initialize server config.
|
||
srvCfg := newServerConfigV20()
|
||
|
||
// If env is set override the credentials from config file.
|
||
if globalIsEnvCreds {
|
||
srvCfg.SetCredential(globalActiveCred)
|
||
}
|
||
|
||
if globalIsEnvBrowser {
|
||
srvCfg.SetBrowser(globalIsBrowserEnabled)
|
||
}
|
||
|
||
if globalIsEnvRegion {
|
||
srvCfg.SetRegion(globalServerRegion)
|
||
}
|
||
|
||
if globalIsEnvDomainName {
|
||
srvCfg.Domain = globalDomainName
|
||
}
|
||
|
||
// hold the mutex lock before a new config is assigned.
|
||
// Save the new config globally.
|
||
// unlock the mutex.
|
||
serverConfigMu.Lock()
|
||
serverConfig = srvCfg
|
||
serverConfigMu.Unlock()
|
||
|
||
// Save config into file.
|
||
return serverConfig.Save()
|
||
}
|
||
|
||
// doCheckDupJSONKeys recursively detects duplicate json keys
|
||
func doCheckDupJSONKeys(key, value gjson.Result) error {
|
||
// Key occurrences map of the current scope to count
|
||
// if there is any duplicated json key.
|
||
keysOcc := make(map[string]int)
|
||
|
||
// Holds the found error
|
||
var checkErr error
|
||
|
||
// Iterate over keys in the current json scope
|
||
value.ForEach(func(k, v gjson.Result) bool {
|
||
// If current key is not null, check if its
|
||
// value contains some duplicated keys.
|
||
if k.Type != gjson.Null {
|
||
keysOcc[k.String()]++
|
||
checkErr = doCheckDupJSONKeys(k, v)
|
||
}
|
||
return checkErr == nil
|
||
})
|
||
|
||
// Check found err
|
||
if checkErr != nil {
|
||
return errors.New(key.String() + " => " + checkErr.Error())
|
||
}
|
||
|
||
// Check for duplicated keys
|
||
for k, v := range keysOcc {
|
||
if v > 1 {
|
||
return errors.New(key.String() + " => `" + k + "` entry is duplicated")
|
||
}
|
||
}
|
||
|
||
return nil
|
||
}
|
||
|
||
// Check recursively if a key is duplicated in the same json scope
|
||
// e.g.:
|
||
// `{ "key" : { "key" ..` is accepted
|
||
// `{ "key" : { "subkey" : "val1", "subkey": "val2" ..` throws subkey duplicated error
|
||
func checkDupJSONKeys(json string) error {
|
||
// Parse config with gjson library
|
||
config := gjson.Parse(json)
|
||
|
||
// Create a fake rootKey since root json doesn't seem to have representation
|
||
// in gjson library.
|
||
rootKey := gjson.Result{Type: gjson.String, Str: minioConfigFile}
|
||
|
||
// Check if loaded json contains any duplicated keys
|
||
return doCheckDupJSONKeys(rootKey, config)
|
||
}
|
||
|
||
// getValidConfig - returns valid server configuration
|
||
func getValidConfig() (*serverConfigV20, error) {
|
||
srvCfg := &serverConfigV20{
|
||
Region: globalMinioDefaultRegion,
|
||
Browser: true,
|
||
}
|
||
|
||
configFile := getConfigFile()
|
||
if _, err := quick.Load(configFile, srvCfg); err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
if srvCfg.Version != v20 {
|
||
return nil, fmt.Errorf("configuration version mismatch. Expected: ‘%s’, Got: ‘%s’", v20, srvCfg.Version)
|
||
}
|
||
|
||
// Load config file json and check for duplication json keys
|
||
jsonBytes, err := ioutil.ReadFile(configFile)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
if err = checkDupJSONKeys(string(jsonBytes)); err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
// Validate credential fields only when
|
||
// they are not set via the environment
|
||
|
||
// Error out if global is env credential is not set and config has invalid credential
|
||
if !globalIsEnvCreds && !srvCfg.Credential.IsValid() {
|
||
return nil, errors.New("invalid credential in config file " + configFile)
|
||
}
|
||
|
||
// Validate logger field
|
||
if err = srvCfg.Logger.Validate(); err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
// Validate notify field
|
||
if err = srvCfg.Notify.Validate(); err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
return srvCfg, nil
|
||
}
|
||
|
||
// loadConfig - loads a new config from disk, overrides params from env
|
||
// if found and valid
|
||
func loadConfig() error {
|
||
srvCfg, err := getValidConfig()
|
||
if err != nil {
|
||
return err
|
||
}
|
||
|
||
// If env is set override the credentials from config file.
|
||
if globalIsEnvCreds {
|
||
srvCfg.SetCredential(globalActiveCred)
|
||
}
|
||
|
||
if globalIsEnvBrowser {
|
||
srvCfg.SetBrowser(globalIsBrowserEnabled)
|
||
}
|
||
|
||
if globalIsEnvRegion {
|
||
srvCfg.SetRegion(globalServerRegion)
|
||
}
|
||
|
||
if globalIsEnvDomainName {
|
||
srvCfg.Domain = globalDomainName
|
||
}
|
||
|
||
// hold the mutex lock before a new config is assigned.
|
||
serverConfigMu.Lock()
|
||
serverConfig = srvCfg
|
||
if !globalIsEnvCreds {
|
||
globalActiveCred = serverConfig.GetCredential()
|
||
}
|
||
if !globalIsEnvBrowser {
|
||
globalIsBrowserEnabled = serverConfig.GetBrowser()
|
||
}
|
||
if !globalIsEnvRegion {
|
||
globalServerRegion = serverConfig.GetRegion()
|
||
}
|
||
if !globalIsEnvDomainName {
|
||
globalDomainName = serverConfig.Domain
|
||
}
|
||
serverConfigMu.Unlock()
|
||
|
||
return nil
|
||
}
|