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// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"context"
"crypto/tls"
"crypto/x509"
"encoding/gob"
"errors"
"fmt"
"math/rand"
"net"
"net/http"
"net/url"
"os"
"path/filepath"
"runtime"
"sort"
"strconv"
"strings"
"time"
fcolor "github.com/fatih/color"
"github.com/go-openapi/loads"
dns2 "github.com/miekg/dns"
"github.com/minio/cli"
consoleCerts "github.com/minio/console/pkg/certs"
"github.com/minio/console/restapi"
"github.com/minio/console/restapi/operations"
"github.com/minio/kes"
"github.com/minio/minio-go/v7"
"github.com/minio/minio-go/v7/pkg/credentials"
"github.com/minio/minio-go/v7/pkg/set"
"github.com/minio/minio/internal/auth"
"github.com/minio/minio/internal/color"
"github.com/minio/minio/internal/config"
"github.com/minio/minio/internal/handlers"
"github.com/minio/minio/internal/kms"
"github.com/minio/minio/internal/logger"
"github.com/minio/pkg/certs"
"github.com/minio/pkg/console"
"github.com/minio/pkg/ellipses"
"github.com/minio/pkg/env"
xnet "github.com/minio/pkg/net"
"github.com/rs/dnscache"
)
// serverDebugLog will enable debug printing
var serverDebugLog = env.Get("_MINIO_SERVER_DEBUG", config.EnableOff) == config.EnableOn
var defaultAWSCredProvider []credentials.Provider
func init() {
rand.Seed(time.Now().UTC().UnixNano())
logger.Init(GOPATH, GOROOT)
logger.RegisterError(config.FmtError)
initGlobalContext()
options := dnscache.ResolverRefreshOptions{
ClearUnused: true,
PersistOnFailure: false,
}
// Call to refresh will refresh names in cache. If you pass true, it will also
// remove cached names not looked up since the last call to Refresh. It is a good idea
// to call this method on a regular interval.
go func() {
var t *time.Ticker
if IsKubernetes() || IsDocker() || IsBOSH() || IsDCOS() || IsPCFTile() {
t = time.NewTicker(1 * time.Minute)
} else {
t = time.NewTicker(10 * time.Minute)
}
defer t.Stop()
for {
select {
case <-t.C:
globalDNSCache.RefreshWithOptions(options)
case <-GlobalContext.Done():
return
}
}
}()
globalForwarder = handlers.NewForwarder(&handlers.Forwarder{
PassHost: true,
RoundTripper: newGatewayHTTPTransport(1 * time.Hour),
Logger: func(err error) {
if err != nil && !errors.Is(err, context.Canceled) {
logger.LogIf(GlobalContext, err)
}
},
})
console.SetColor("Debug", fcolor.New())
gob.Register(StorageErr(""))
defaultAWSCredProvider = []credentials.Provider{
&credentials.IAM{
Client: &http.Client{
Transport: NewGatewayHTTPTransport(),
},
},
}
// All minio-go API operations shall be performed only once,
// another way to look at this is we are turning off retries.
minio.MaxRetry = 1
}
const consolePrefix = "CONSOLE_"
func minioConfigToConsoleFeatures() {
os.Setenv("CONSOLE_PBKDF_SALT", globalDeploymentID)
os.Setenv("CONSOLE_PBKDF_PASSPHRASE", globalDeploymentID)
if globalMinioEndpoint != "" {
os.Setenv("CONSOLE_MINIO_SERVER", globalMinioEndpoint)
} else {
os.Setenv("CONSOLE_MINIO_SERVER", getAPIEndpoints()[0])
}
if value := env.Get("MINIO_LOG_QUERY_URL", ""); value != "" {
os.Setenv("CONSOLE_LOG_QUERY_URL", value)
if value := env.Get("MINIO_LOG_QUERY_AUTH_TOKEN", ""); value != "" {
os.Setenv("CONSOLE_LOG_QUERY_AUTH_TOKEN", value)
}
}
// Enable if prometheus URL is set.
if value := env.Get("MINIO_PROMETHEUS_URL", ""); value != "" {
os.Setenv("CONSOLE_PROMETHEUS_URL", value)
if value := env.Get("MINIO_PROMETHEUS_JOB_ID", "minio-job"); value != "" {
os.Setenv("CONSOLE_PROMETHEUS_JOB_ID", value)
}
}
// Enable if LDAP is enabled.
if globalLDAPConfig.Enabled {
os.Setenv("CONSOLE_LDAP_ENABLED", config.EnableOn)
}
// if IDP is enabled, set IDP environment variables
if globalOpenIDConfig.URL != nil {
os.Setenv("CONSOLE_IDP_URL", globalOpenIDConfig.URL.String())
os.Setenv("CONSOLE_IDP_CLIENT_ID", globalOpenIDConfig.ClientID)
os.Setenv("CONSOLE_IDP_SECRET", globalOpenIDConfig.ClientSecret)
os.Setenv("CONSOLE_IDP_HMAC_SALT", globalDeploymentID)
os.Setenv("CONSOLE_IDP_HMAC_PASSPHRASE", globalOpenIDConfig.ClientID)
os.Setenv("CONSOLE_IDP_SCOPES", strings.Join(globalOpenIDConfig.DiscoveryDoc.ScopesSupported, ","))
if globalOpenIDConfig.ClaimUserinfo {
os.Setenv("CONSOLE_IDP_USERINFO", "on")
}
if globalOpenIDConfig.RedirectURI != "" {
os.Setenv("CONSOLE_IDP_CALLBACK", globalOpenIDConfig.RedirectURI)
} else {
os.Setenv("CONSOLE_IDP_CALLBACK", getConsoleEndpoints()[0]+"/oauth_callback")
}
}
os.Setenv("CONSOLE_MINIO_REGION", globalServerRegion)
os.Setenv("CONSOLE_CERT_PASSWD", env.Get("MINIO_CERT_PASSWD", ""))
if globalSubnetConfig.License != "" {
os.Setenv("CONSOLE_SUBNET_LICENSE", globalSubnetConfig.License)
}
}
func initConsoleServer() (*restapi.Server, error) {
// unset all console_ environment variables.
for _, cenv := range env.List(consolePrefix) {
os.Unsetenv(cenv)
}
// enable all console environment variables
minioConfigToConsoleFeatures()
// set certs dir to minio directory
consoleCerts.GlobalCertsDir = &consoleCerts.ConfigDir{
Path: globalCertsDir.Get(),
}
consoleCerts.GlobalCertsCADir = &consoleCerts.ConfigDir{
Path: globalCertsCADir.Get(),
}
swaggerSpec, err := loads.Embedded(restapi.SwaggerJSON, restapi.FlatSwaggerJSON)
if err != nil {
return nil, err
}
api := operations.NewConsoleAPI(swaggerSpec)
if !serverDebugLog {
// Disable console logging if server debug log is not enabled
noLog := func(string, ...interface{}) {}
restapi.LogInfo = noLog
restapi.LogError = noLog
api.Logger = noLog
}
server := restapi.NewServer(api)
// register all APIs
server.ConfigureAPI()
restapi.GlobalRootCAs, restapi.GlobalPublicCerts, restapi.GlobalTLSCertsManager = globalRootCAs, globalPublicCerts, globalTLSCerts
consolePort, _ := strconv.Atoi(globalMinioConsolePort)
server.Host = globalMinioConsoleHost
server.Port = consolePort
restapi.Port = globalMinioConsolePort
restapi.Hostname = globalMinioConsoleHost
if globalIsTLS {
// If TLS certificates are provided enforce the HTTPS.
server.EnabledListeners = []string{"https"}
server.TLSPort = consolePort
// Need to store tls-port, tls-host un config variables so secure.middleware can read from there
restapi.TLSPort = globalMinioConsolePort
restapi.Hostname = globalMinioConsoleHost
}
return server, nil
}
func verifyObjectLayerFeatures(name string, objAPI ObjectLayer) {
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")
}
}
globalCompressConfigMu.Lock()
if globalCompressConfig.Enabled && !objAPI.IsCompressionSupported() {
logger.Fatal(errInvalidArgument,
"Compression support is requested but '%s' does not support compression", name)
}
globalCompressConfigMu.Unlock()
}
// 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 er
8000
r != 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
addr := ctx.GlobalString("address")
if addr == "" || addr == ":"+GlobalMinioDefaultPort {
addr = ctx.String("address")
}
// Fetch console address option
consoleAddr := ctx.GlobalString("console-address")
if consoleAddr == "" {
consoleAddr = ctx.String("console-address")
}
if consoleAddr == "" {
p, err := xnet.GetFreePort()
if err != nil {
logger.FatalIf(err, "Unable to get free port for console on the host")
}
globalMinioConsolePortAuto = true
consoleAddr = net.JoinHostPort("", p.String())
}
if _, _, err := net.SplitHostPort(consoleAddr); err != nil {
logger.FatalIf(err, "Unable to start listening on console port")
}
if consoleAddr == addr {
logger.FatalIf(errors.New("--console-address cannot be same as --address"), "Unable to start the server")
}
globalMinioHost, globalMinioPort = mustSplitHostPort(addr)
globalMinioConsoleHost, globalMinioConsolePort = mustSplitHostPort(consoleAddr)
if globalMinioPort == globalMinioConsolePort {
logger.FatalIf(errors.New("--console-address port cannot be same as --address port"), "Unable to start the server")
}
globalMinioAddr = addr
// 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() {
var err error
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")
}
if globalBrowserEnabled {
if redirectURL := env.Get(config.EnvMinIOBrowserRedirectURL, ""); redirectURL != "" {
u, err := xnet.ParseHTTPURL(redirectURL)
if err != nil {
logger.Fatal(err, "Invalid MINIO_BROWSER_REDIRECT_URL value in environment variable")
}
// Look for if URL has invalid values and return error.
if !((u.Scheme == "http" || u.Scheme == "https") &&
(u.Path == "/" || u.Path == "") && u.Opaque == "" &&
!u.ForceQuery && u.RawQuery == "" && u.Fragment == "") {
err := fmt.Errorf("URL contains unexpected resources, expected URL to be of http(s)://minio.example.com format: %v", u)
logger.Fatal(err, "Invalid MINIO_BROWSER_REDIRECT_URL value is environment variable")
}
u.Path = "" // remove any path component such as `/`
globalBrowserRedirectURL = u
}
}
if serverURL := env.Get(config.EnvMinIOServerURL, ""); serverURL != "" {
u, err := xnet.ParseHTTPURL(serverURL)
if err != nil {
logger.Fatal(err, "Invalid MINIO_SERVER_URL value in environment variable")
}
// Look for if URL has invalid values and return error.
if !((u.Scheme == "http" || u.Scheme == "https") &&
(u.Path == "/" || u.Path == "") && u.Opaque == "" &&
!u.ForceQuery && u.RawQuery == "" && u.Fragment == "") {
err := fmt.Errorf("URL contains unexpected resources, expected URL to be of http(s)://minio.example.com format: %v", u)
logger.Fatal(err, "Invalid MINIO_SERVER_URL value is environment variable")
}
u.Path = "" // remove any path component such as `/`
globalMinioEndpoint = u.String()
}
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)
}
sort.Strings(globalDomainNames)
lcpSuf := lcpSuffix(globalDomainNames)
for _, domainName := range globalDomainNames {
if domainName == lcpSuf && len(globalDomainNames) > 1 {
logger.Fatal(config.ErrOverlappingDomainValue(nil).Msg("Overlapping domains `%s` not allowed", globalDomainNames),
"Invalid MINIO_DOMAIN value in environment variable")
}
}
}
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)
// Check if the supported credential env vars, "MINIO_ROOT_USER" and
// "MINIO_ROOT_PASSWORD" are provided
// Warn user if deprecated environment variables,
// "MINIO_ACCESS_KEY" and "MINIO_SECRET_KEY", are defined
// Check all error conditions first
if !env.IsSet(config.EnvRootUser) && env.IsSet(config.EnvRootPassword) {
logger.Fatal(config.ErrMissingEnvCredentialRootUser(nil), "Unable to start MinIO")
} else if env.IsSet(config.EnvRootUser) && !env.IsSet(config.EnvRootPassword) {
logger.Fatal(config.ErrMissingEnvCredentialRootPassword(nil), "Unable to start MinIO")
} else if !env.IsSet(config.EnvRootUser) && !env.IsSet(config.EnvRootPassword) {
if !env.IsSet(config.EnvAccessKey) && env.IsSet(config.EnvSecretKey) {
logger.Fatal(config.ErrMissingEnvCredentialAccessKey(nil), "Unable to start MinIO")
} else if env.IsSet(config.EnvAccessKey) && !env.IsSet(config.EnvSecretKey) {
logger.Fatal(config.ErrMissingEnvCredentialSecretKey(nil), "Unable to start MinIO")
}
}
// At this point, either both environment variables
// are defined or both are not defined.
// Check both cases and authenticate them if correctly defined
var user, password string
haveRootCredentials := false
haveAccessCredentials := false
if env.IsSet(config.EnvRootUser) && env.IsSet(config.EnvRootPassword) {
user = env.Get(config.EnvRootUser, "")
password = env.Get(config.EnvRootPassword, "")
haveRootCredentials = true
} else if env.IsSet(config.EnvAccessKey) && env.IsSet(config.EnvSecretKey) {
user = env.Get(config.EnvAccessKey, "")
password = env.Get(config.EnvSecretKey, "")
haveAccessCredentials = true
}
if haveRootCredentials || haveAccessCredentials {
cred, err := auth.CreateCredentials(user, password)
if err != nil {
logger.Fatal(config.ErrInvalidCredentials(err),
"Unable to validate credentials inherited from the shell environment")
}
if haveAccessCredentials {
msg := fmt.Sprintf("WARNING: %s and %s are deprecated.\n"+
" Please use %s and %s",
config.EnvAccessKey, config.EnvSecretKey,
config.EnvRootUser, config.EnvRootPassword)
logStartupMessage(color.RedBold(msg))
}
globalActiveCred = cred
}
switch {
case env.IsSet(config.EnvKMSSecretKey) && env.IsSet(config.EnvKESEndpoint):
logger.Fatal(errors.New("ambigious KMS configuration"), fmt.Sprintf("The environment contains %q as well as %q", config.EnvKMSSecretKey, config.EnvKESEndpoint))
}
if env.IsSet(config.EnvKMSSecretKey) {
GlobalKMS, err = kms.Parse(env.Get(config.EnvKMSSecretKey, ""))
if err != nil {
logger.Fatal(err, "Unable to parse the KMS secret key inherited from the shell environment")
}
}
if env.IsSet(config.EnvKESEndpoint) {
var endpoints []string
for _, endpoint := range strings.Split(env.Get(config.EnvKESEndpoint, ""), ",") {
if strings.TrimSpace(endpoint) == "" {
continue
}
if !ellipses.HasEllipses(endpoint) {
endpoints = append(endpoints, endpoint)
continue
}
patterns, err := ellipses.FindEllipsesPatterns(endpoint)
if err != nil {
logger.Fatal(err, fmt.Sprintf("Invalid KES endpoint %q", endpoint))
}
for _, lbls := range patterns.Expand() {
endpoints = append(endpoints, strings.Join(lbls, ""))
}
}
certificate, err := tls.LoadX509KeyPair(env.Get(config.EnvKESClientCert, ""), env.Get(config.EnvKESClientKey, ""))
if err != nil {
logger.Fatal(err, "Unable to load KES client certificate as specified by the shell environment")
}
rootCAs, err := certs.GetRootCAs(env.Get(config.EnvKESServerCA, globalCertsCADir.Get()))
if err != nil {
logger.Fatal(err, fmt.Sprintf("Unable to load X.509 root CAs for KES from %q", env.Get(config.EnvKESServerCA, globalCertsCADir.Get())))
}
var defaultKeyID = env.Get(config.EnvKESKeyName, "")
KMS, err := kms.NewWithConfig(kms.Config{
Endpoints: endpoints,
DefaultKeyID: defaultKeyID,
Certificate: certificate,
RootCAs: rootCAs,
})
if err != nil {
logger.Fatal(err, "Unable to initialize a connection to KES as specified by the shell environment")
}
// We check that the default key ID exists or try to create it otherwise.
// This implicitly checks that we can communicate to KES. We don't treat
// a policy error as failure condition since MinIO may not have the permission
// to create keys - just to generate/decrypt data encryption keys.
if err = KMS.CreateKey(defaultKeyID); err != nil && !errors.Is(err, kes.ErrKeyExists) && !errors.Is(err, kes.ErrNotAllowed) {
logger.Fatal(err, "Unable to initialize a connection to KES as specified by the shell environment")
}
GlobalKMS = KMS
}
}
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
}
// contextCanceled returns whether a context is canceled.
func contextCanceled(ctx context.Context) bool {
select {
case <-ctx.Done():
return true
default:
return false
}
}