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https://github.com/minio/minio.git
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26e9f78a86
Display help message, when access and secret keys are not set in any of the gateway. Fixes #5124
239 lines
6.8 KiB
Go
239 lines
6.8 KiB
Go
/*
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* Minio Cloud Storage, (C) 2017 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cmd
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import (
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"errors"
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"fmt"
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"net/url"
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"os"
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"os/signal"
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"runtime"
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"strings"
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"syscall"
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"github.com/gorilla/mux"
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"github.com/minio/cli"
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miniohttp "github.com/minio/minio/pkg/http"
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)
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var (
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gatewayCmd = cli.Command{
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Name: "gateway",
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Usage: "Start object storage gateway.",
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Flags: append(serverFlags, globalFlags...),
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HideHelpCommand: true,
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}
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)
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// Gateway represents a gateway backend.
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type Gateway interface {
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// Name returns the unique name of the gateway.
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Name() string
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// NewGatewayLayer returns a new gateway layer.
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NewGatewayLayer() (GatewayLayer, error)
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}
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// RegisterGatewayCommand registers a new command for gateway.
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func RegisterGatewayCommand(cmd cli.Command) error {
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// We should not have multiple subcommands with same name.
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for _, c := range gatewayCmd.Subcommands {
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if c.Name == cmd.Name {
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return fmt.Errorf("duplicate gateway: %s", cmd.Name)
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}
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}
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gatewayCmd.Subcommands = append(gatewayCmd.Subcommands, cmd)
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return nil
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}
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// MustRegisterGatewayCommand is like RegisterGatewayCommand but panics instead of returning error.
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func MustRegisterGatewayCommand(cmd cli.Command) {
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if err := RegisterGatewayCommand(cmd); err != nil {
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panic(err)
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}
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}
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// Return endpoint.
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func parseGatewayEndpoint(arg string) (endPoint string, secure bool, err error) {
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schemeSpecified := len(strings.Split(arg, "://")) > 1
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if !schemeSpecified {
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// Default connection will be "secure".
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arg = "https://" + arg
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}
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u, err := url.Parse(arg)
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if err != nil {
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return "", false, err
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}
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switch u.Scheme {
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case "http":
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return u.Host, false, nil
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case "https":
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return u.Host, true, nil
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default:
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return "", false, fmt.Errorf("Unrecognized scheme %s", u.Scheme)
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}
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}
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// Validate gateway arguments.
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func validateGatewayArguments(serverAddr, endpointAddr string) error {
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if err := CheckLocalServerAddr(serverAddr); err != nil {
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return err
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}
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if runtime.GOOS == "darwin" {
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_, port := mustSplitHostPort(serverAddr)
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// On macOS, if a process already listens on LOCALIPADDR:PORT, net.Listen() falls back
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// to IPv6 address i.e minio will start listening on IPv6 address whereas another
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// (non-)minio process is listening on IPv4 of given port.
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// To avoid this error situation we check for port availability only for macOS.
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if err := checkPortAvailability(port); err != nil {
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return err
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}
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}
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if endpointAddr != "" {
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// Reject the endpoint if it points to the gateway handler itself.
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sameTarget, err := sameLocalAddrs(endpointAddr, serverAddr)
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if err != nil {
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return err
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}
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if sameTarget {
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return errors.New("endpoint points to the local gateway")
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}
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}
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return nil
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}
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// Handler for 'minio gateway <name>'.
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func startGateway(ctx *cli.Context, gw Gateway) {
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// Get quiet flag from command line argument.
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quietFlag := ctx.Bool("quiet") || ctx.GlobalBool("quiet")
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if quietFlag {
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log.EnableQuiet()
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}
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// Fetch address option
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gatewayAddr := ctx.GlobalString("address")
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if gatewayAddr == ":"+globalMinioPort {
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gatewayAddr = ctx.String("address")
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}
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// Handle common command args.
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handleCommonCmdArgs(ctx)
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// Handle common env vars.
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handleCommonEnvVars()
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// Validate if we have access, secret set through environment.
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gatewayName := gw.Name()
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if !globalIsEnvCreds {
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errorIf(errors.New("Access and secret keys not set"), "Access and Secret keys should be set through ENVs for backend [%s]", gatewayName)
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cli.ShowCommandHelpAndExit(ctx, gatewayName, 1)
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}
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// Create certs path.
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fatalIf(createConfigDir(), "Unable to create configuration directories.")
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// Initialize gateway config.
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initConfig()
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// Enable loggers as per configuration file.
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enableLoggers()
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// Init the error tracing module.
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initError()
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// Check and load SSL certificates.
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var err error
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globalPublicCerts, globalRootCAs, globalTLSCertificate, globalIsSSL, err = getSSLConfig()
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fatalIf(err, "Invalid SSL certificate file")
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initNSLock(false) // Enable local namespace lock.
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if ctx.Args().First() == "help" {
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cli.ShowCommandHelpAndExit(ctx, gatewayName, 1)
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}
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newObject, err := gw.NewGatewayLayer()
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fatalIf(err, "Unable to initialize gateway layer")
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router := mux.NewRouter().SkipClean(true)
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// Register web router when its enabled.
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if globalIsBrowserEnabled {
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fatalIf(registerWebRouter(router), "Unable to configure web browser")
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}
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registerGatewayAPIRouter(router, newObject)
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var handlerFns = []HandlerFunc{
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// Validate all the incoming paths.
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setPathValidityHandler,
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// Limits all requests size to a maximum fixed limit
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setRequestSizeLimitHandler,
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// Adds 'crossdomain.xml' policy handler to serve legacy flash clients.
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setCrossDomainPolicy,
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// Validates all incoming requests to have a valid date header.
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// Redirect some pre-defined browser request paths to a static location prefix.
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setBrowserRedirectHandler,
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// Validates if incoming request is for restricted buckets.
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setReservedBucketHandler,
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// Adds cache control for all browser requests.
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setBrowserCacheControlHandler,
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// Validates all incoming requests to have a valid date header.
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setTimeValidityHandler,
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// CORS setting for all browser API requests.
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setCorsHandler,
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// Validates all incoming URL resources, for invalid/unsupported
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// resources client receives a HTTP error.
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setIgnoreResourcesHandler,
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// Auth handler verifies incoming authorization headers and
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// routes them accordingly. Client receives a HTTP error for
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// invalid/unsupported signatures.
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setAuthHandler,
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// Add new handlers here.
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}
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globalHTTPServer = miniohttp.NewServer([]string{gatewayAddr}, registerHandlers(router, handlerFns...), globalTLSCertificate)
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// Start server, automatically configures TLS if certs are available.
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go func() {
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globalHTTPServerErrorCh <- globalHTTPServer.Start()
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}()
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signal.Notify(globalOSSignalCh, os.Interrupt, syscall.SIGTERM)
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// Once endpoints are finalized, initialize the new object api.
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globalObjLayerMutex.Lock()
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globalObjectAPI = newObject
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globalObjLayerMutex.Unlock()
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// Prints the formatted startup message once object layer is initialized.
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if !quietFlag {
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mode := globalMinioModeGatewayPrefix + gatewayName
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// Check update mode.
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checkUpdate(mode)
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// Print gateway startup message.
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printGatewayStartupMessage(getAPIEndpoints(gatewayAddr), gatewayName)
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}
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handleSignals()
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}
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