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/*
* MinIO Cloud Storage, (C) 2017-2019 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 (
"crypto/x509"
"encoding/gob"
"errors"
"fmt"
"math/rand"
"net"
"net/url"
"os"
"path/filepath"
"runtime"
"strings"
"time"
dns2 "github.com/miekg/dns"
"github.com/minio/cli"
"github.com/minio/minio-go/v7/pkg/set"
"github.com/minio/minio/cmd/config"
xhttp "github.com/minio/minio/cmd/http"
"github.com/minio/minio/cmd/logger"
"github.com/minio/minio/pkg/auth"
"github.com/minio/minio/pkg/certs"
"github.com/minio/minio/pkg/env"
)
func init() {
logger.Init(GOPATH, GOROOT)
logger.RegisterError(config.FmtError)
rand.Seed(time.Now().UTC().UnixNano())
globalDNSCache = xhttp.NewDNSCache(3*time.Second, 10*time.Second)
gob.Register(StorageErr(""))
}
func verifyObjectLayerFeatures(name string, objAPI ObjectLayer) {
if (GlobalKMS != nil) && !objAPI.IsEncryptionSupported() {
logger.Fatal(errInvalidArgument,
"Encryption support is requested but '%s' does not support encryption", name)
}
if strings.HasPrefix(name, "gateway") {
if GlobalGatewaySSE.IsSet() && GlobalKMS == nil {
uiErr := config.ErrInvalidGWSSEEnvValue(nil).Msg("MINIO_GATEWAY_SSE set but KMS is not configured")
logger.Fatal(uiErr, "Unable to start gateway with SSE")
}
}
if globalCompressConfig.Enabled && !objAPI.IsCompressionSupported() {
logger.Fatal(errInvalidArgument,
"Compression support is requested but '%s' does not support compression", name)
}
}
// Check for updates and print a notification message
func checkUpdate(mode string) {
updateURL := minioReleaseInfoURL
if runtime.GOOS == globalWindowsOSName {
updateURL = minioReleaseWindowsInfoURL
}
u, err := url.Parse(updateURL)
if err != nil {
return
}
// Its OK to ignore any errors during doUpdate() here.
crTime, err := GetCurrentReleaseTime()
if err != nil {
return
}
_, lrTime, err := getLatestReleaseTime(u, 2*time.Second, mode)
if err != nil {
return
}
var older time.Duration
var downloadURL string
if lrTime.After(crTime) {
older = lrTime.Sub(crTime)
downloadURL = getDownloadURL(releaseTimeToReleaseTag(lrTime))
}
updateMsg := prepareUpdateMessage(downloadURL, older)
if updateMsg == "" {
return
}
logStartupMessage(prepareUpdateMessage("Run `mc admin update`", lrTime.Sub(crTime)))
}
func newConfigDirFromCtx(ctx *cli.Context, option string, getDefaultDir func() string) (*ConfigDir, bool) {
var dir string
var dirSet bool
switch {
case ctx.IsSet(option):
dir = ctx.String(option)
dirSet = true
case ctx.GlobalIsSet(option):
dir = ctx.GlobalString(option)
dirSet = true
// cli package does not expose parent's option option. Below code is workaround.
if dir == "" || dir == getDefaultDir() {
dirSet = false // Unset to false since GlobalIsSet() true is a false positive.
if ctx.Parent().GlobalIsSet(option) {
dir = ctx.Parent().GlobalString(option)
dirSet = true
}
}
default:
// Neither local nor global option is provided. In this case, try to use
// default directory.
dir = getDefaultDir()
if dir == "" {
logger.FatalIf(errInvalidArgument, "%s option must be provided", option)
}
}
if dir == "" {
logger.FatalIf(errors.New("empty directory"), "%s directory cannot be empty", option)
}
// Disallow relative paths, figure out absolute paths.
dirAbs, err := filepath.Abs(dir)
logger.FatalIf(err, "Unable to fetch absolute path for %s=%s", option, dir)
logger.FatalIf(mkdirAllIgnorePerm(dirAbs), "Unable to create directory specified %s=%s", option, dir)
return &ConfigDir{path: dirAbs}, dirSet
}
func handleCommonCmdArgs(ctx *cli.Context) {
// Get "json" flag from command line argument and
// enable json and quite modes if json flag is turned on.
globalCLIContext.JSON = ctx.IsSet("json") || ctx.GlobalIsSet("json")
if globalCLIContext.JSON {
logger.EnableJSON()
}
// Get quiet flag from command line argument.
globalCLIContext.Quiet = ctx.IsSet("quiet") || ctx.GlobalIsSet("quiet")
if globalCLIContext.Quiet {
logger.EnableQuiet()
}
// Get anonymous flag from command line argument.
globalCLIContext.Anonymous = ctx.IsSet("anonymous") || ctx.GlobalIsSet("anonymous")
if globalCLIContext.Anonymous {
logger.EnableAnonymous()
}
// Fetch address option
globalCLIContext.Addr = ctx.GlobalString("address")
if globalCLIContext.Addr == "" || globalCLIContext.Addr == ":"+GlobalMinioDefaultPort {
globalCLIContext.Addr = ctx.String("address")
}
// Check "no-compat" flag from command line argument.
globalCLIContext.StrictS3Compat = true
if ctx.IsSet("no-compat") || ctx.GlobalIsSet("no-compat") {
globalCLIContext.StrictS3Compat = false
}
// Set all config, certs and CAs directories.
var configSet, certsSet bool
globalConfigDir, configSet = newConfigDirFromCtx(ctx, "config-dir", defaultConfigDir.Get)
globalCertsDir, certsSet = newConfigDirFromCtx(ctx, "certs-dir", defaultCertsDir.Get)
// Remove this code when we deprecate and remove config-dir.
// This code is to make sure we inherit from the config-dir
// option if certs-dir is not provided.
if !certsSet && configSet {
globalCertsDir = &ConfigDir{path: filepath.Join(globalConfigDir.Get(), certsDir)}
}
globalCertsCADir = &ConfigDir{path: filepath.Join(globalCertsDir.Get(), certsCADir)}
logger.FatalIf(mkdirAllIgnorePerm(globalCertsCADir.Get()), "Unable to create certs CA directory at %s", globalCertsCADir.Get())
}
func handleCommonEnvVars() {
wormEnabled, err := config.LookupWorm()
if err != nil {
logger.Fatal(config.ErrInvalidWormValue(err), "Invalid worm configuration")
}
if wormEnabled {
logger.Fatal(errors.New("WORM is deprecated"), "global MINIO_WORM support is removed, please downgrade your server or migrate to https://github.com/minio/minio/tree/master/docs/retention")
}
globalBrowserEnabled, err = config.ParseBool(env.Get(config.EnvBrowser, config.EnableOn))
if err != nil {
logger.Fatal(config.ErrInvalidBrowserValue(err), "Invalid MINIO_BROWSER value in environment variable")
}
globalFSOSync, err = config.ParseBool(env.Get(config.EnvFSOSync, config.EnableOff))
if err != nil {
logger.Fatal(config.ErrInvalidFSOSyncValue(err), "Invalid MINIO_FS_OSYNC value in environment variable")
}
domains := env.Get(config.EnvDomain, "")
if len(domains) != 0 {
for _, domainName := range strings.Split(domains, config.ValueSeparator) {
if _, ok := dns2.IsDomainName(domainName); !ok {
logger.Fatal(config.ErrInvalidDomainValue(nil).Msg("Unknown value `%s`", domainName),
"Invalid MINIO_DOMAIN value in environment variable")
}
globalDomainNames = append(globalDomainNames, domainName)
}
}
publicIPs := env.Get(config.EnvPublicIPs, "")
if len(publicIPs) != 0 {
minioEndpoints := strings.Split(publicIPs, config.ValueSeparator)
var domainIPs = set.NewStringSet()
for _, endpoint := range minioEndpoints {
if net.ParseIP(endpoint) == nil {
// Checking if the IP is a DNS entry.
addrs, err := net.LookupHost(endpoint)
if err != nil {
logger.FatalIf(err, "Unable to initialize MinIO server with [%s] invalid entry found in MINIO_PUBLIC_IPS", endpoint)
}
for _, addr := range addrs {
domainIPs.Add(addr)
}
}
domainIPs.Add(endpoint)
}
updateDomainIPs(domainIPs)
} else {
// Add found interfaces IP address to global domain IPS,
// loopback addresses will be naturally dropped.
domainIPs := mustGetLocalIP4()
for _, host := range globalEndpoints.Hostnames() {
domainIPs.Add(host)
}
updateDomainIPs(domainIPs)
}
// In place update is true by default if the MINIO_UPDATE is not set
// or is not set to 'off', if MINIO_UPDATE is set to 'off' then
// in-place update is off.
globalInplaceUpdateDisabled = strings.EqualFold(env.Get(config.EnvUpdate, config.EnableOn), config.EnableOff)
if env.IsSet(config.EnvAccessKey) || env.IsSet(config.EnvSecretKey) {
cred, err := auth.CreateCredentials(env.Get(config.EnvAccessKey, ""), env.Get(config.EnvSecretKey, ""))
if err != nil {
logger.Fatal(config.ErrInvalidCredentials(err),
"Unable to validate credentials inherited from the shell environment")
}
globalActiveCred = cred
globalConfigEncrypted = true
}
if env.IsSet(config.EnvAccessKeyOld) && env.IsSet(config.EnvSecretKeyOld) {
oldCred, err := auth.CreateCredentials(env.Get(config.EnvAccessKeyOld, ""), env.Get(config.EnvSecretKeyOld, ""))
if err != nil {
logger.Fatal(config.ErrInvalidCredentials(err),
"Unable to validate the old credentials inherited from the shell environment")
}
globalOldCred = oldCred
os.Unsetenv(config.EnvAccessKeyOld)
os.Unsetenv(config.EnvSecretKeyOld)
}
}
func logStartupMessage(msg string) {
if globalConsoleSys != nil {
globalConsoleSys.Send(msg, string(logger.All))
}
logger.StartupMessage(msg)
}
func getTLSConfig() (x509Certs []*x509.Certificate, manager *certs.Manager, secureConn bool, err error) {
if !(isFile(getPublicCertFile()) && isFile(getPrivateKeyFile())) {
return nil, nil, false, nil
}
if x509Certs, err = config.ParsePublicCertFile(getPublicCertFile()); err != nil {
return nil, nil, false, err
}
manager, err = certs.NewManager(GlobalContext, getPublicCertFile(), getPrivateKeyFile(), config.LoadX509KeyPair)
if err != nil {
return nil, nil, false, err
}
// MinIO has support for multiple certificates. It expects the following structure:
// certs/
// │
// ├─ public.crt
// ├─ private.key
// │
// ├─ example.com/
// │ │
// │ ├─ public.crt
// │ └─ private.key
// └─ foobar.org/
// │
// ├─ public.crt
// └─ private.key
// ...
//
// Therefore, we read all filenames in the cert directory and check
// for each directory whether it contains a public.crt and private.key.
// If so, we try to add it to certificate manager.
root, err := os.Open(globalCertsDir.Get())
if err != nil {
return nil, nil, false, err
}
defer root.Close()
files, err := root.Readdir(-1)
if err != nil {
return nil, nil, false, err
}
for _, file := range files {
// Ignore all
// - regular files
// - "CAs" directory
// - any directory which starts with ".."
if file.Mode().IsRegular() || file.Name() == "CAs" || strings.HasPrefix(file.Name(), "..") {
continue
}
if file.Mode()&os.ModeSymlink == os.ModeSymlink {
file, err = os.Stat(filepath.Join(root.Name(), file.Name()))
if err != nil {
// not accessible ignore
continue
}
if !file.IsDir() {
continue
}
}
var (
certFile = filepath.Join(root.Name(), file.Name(), publicCertFile)
keyFile = filepath.Join(root.Name(), file.Name(), privateKeyFile)
)
if !isFile(certFile) || !isFile(keyFile) {
continue
}
if err = manager.AddCertificate(certFile, keyFile); err != nil {
err = fmt.Errorf("Unable to load TLS certificate '%s,%s': %w", certFile, keyFile, err)
logger.LogIf(GlobalContext, err, logger.Minio)
}
}
secureConn = true
return x509Certs, manager, secureConn, nil
}