package command import ( "context" "crypto/tls" "crypto/x509" "fmt" "io/ioutil" "net" "net/http" "os" "runtime" "time" "github.com/seaweedfs/seaweedfs/weed/s3api/s3err" "google.golang.org/grpc/credentials/tls/certprovider" "google.golang.org/grpc/credentials/tls/certprovider/pemfile" "google.golang.org/grpc/reflection" "github.com/seaweedfs/seaweedfs/weed/pb" "github.com/seaweedfs/seaweedfs/weed/pb/filer_pb" "github.com/seaweedfs/seaweedfs/weed/pb/s3_pb" "github.com/seaweedfs/seaweedfs/weed/security" "github.com/gorilla/mux" "github.com/seaweedfs/seaweedfs/weed/glog" "github.com/seaweedfs/seaweedfs/weed/s3api" stats_collect "github.com/seaweedfs/seaweedfs/weed/stats" "github.com/seaweedfs/seaweedfs/weed/util" ) var ( s3StandaloneOptions S3Options ) type S3Options struct { filer *string bindIp *string port *int portHttps *int portGrpc *int config *string domainName *string tlsPrivateKey *string tlsCertificate *string tlsCACertificate *string tlsVerifyClientCert *bool metricsHttpPort *int allowEmptyFolder *bool allowDeleteBucketNotEmpty *bool auditLogConfig *string localFilerSocket *string dataCenter *string localSocket *string certProvider certprovider.Provider } func init() { cmdS3.Run = runS3 // break init cycle s3StandaloneOptions.filer = cmdS3.Flag.String("filer", "localhost:8888", "filer server address") s3StandaloneOptions.bindIp = cmdS3.Flag.String("ip.bind", "", "ip address to bind to. Default to localhost.") s3StandaloneOptions.port = cmdS3.Flag.Int("port", 8333, "s3 server http listen port") s3StandaloneOptions.portHttps = cmdS3.Flag.Int("port.https", 0, "s3 server https listen port") s3StandaloneOptions.portGrpc = cmdS3.Flag.Int("port.grpc", 0, "s3 server grpc listen port") s3StandaloneOptions.domainName = cmdS3.Flag.String("domainName", "", "suffix of the host name in comma separated list, {bucket}.{domainName}") s3StandaloneOptions.dataCenter = cmdS3.Flag.String("dataCenter", "", "prefer to read and write to volumes in this data center") s3StandaloneOptions.config = cmdS3.Flag.String("config", "", "path to the config file") s3StandaloneOptions.auditLogConfig = cmdS3.Flag.String("auditLogConfig", "", "path to the audit log config file") s3StandaloneOptions.tlsPrivateKey = cmdS3.Flag.String("key.file", "", "path to the TLS private key file") s3StandaloneOptions.tlsCertificate = cmdS3.Flag.String("cert.file", "", "path to the TLS certificate file") s3StandaloneOptions.tlsCACertificate = cmdS3.Flag.String("cacert.file", "", "path to the TLS CA certificate file") s3StandaloneOptions.tlsVerifyClientCert = cmdS3.Flag.Bool("tlsVerifyClientCert", false, "whether to verify the client's certificate") s3StandaloneOptions.metricsHttpPort = cmdS3.Flag.Int("metricsPort", 0, "Prometheus metrics listen port") s3StandaloneOptions.allowEmptyFolder = cmdS3.Flag.Bool("allowEmptyFolder", true, "allow empty folders") s3StandaloneOptions.allowDeleteBucketNotEmpty = cmdS3.Flag.Bool("allowDeleteBucketNotEmpty", true, "allow recursive deleting all entries along with bucket") s3StandaloneOptions.localFilerSocket = cmdS3.Flag.String("localFilerSocket", "", "local filer socket path") s3StandaloneOptions.localSocket = cmdS3.Flag.String("localSocket", "", "default to /tmp/seaweedfs-s3-.sock") } var cmdS3 = &Command{ UsageLine: "s3 [-port=8333] [-filer=] [-config=]", Short: "start a s3 API compatible server that is backed by a filer", Long: `start a s3 API compatible server that is backed by a filer. By default, you can use any access key and secret key to access the S3 APIs. To enable credential based access, create a config.json file similar to this: { "identities": [ { "name": "anonymous", "actions": [ "Read" ] }, { "name": "some_admin_user", "credentials": [ { "accessKey": "some_access_key1", "secretKey": "some_secret_key1" } ], "actions": [ "Admin", "Read", "List", "Tagging", "Write" ] }, { "name": "some_read_only_user", "credentials": [ { "accessKey": "some_access_key2", "secretKey": "some_secret_key2" } ], "actions": [ "Read" ] }, { "name": "some_normal_user", "credentials": [ { "accessKey": "some_access_key3", "secretKey": "some_secret_key3" } ], "actions": [ "Read", "List", "Tagging", "Write" ] }, { "name": "user_limited_to_bucket1", "credentials": [ { "accessKey": "some_access_key4", "secretKey": "some_secret_key4" } ], "actions": [ "Read:bucket1", "List:bucket1", "Tagging:bucket1", "Write:bucket1" ] } ] } `, } func runS3(cmd *Command, args []string) bool { util.LoadConfiguration("security", false) go stats_collect.StartMetricsServer(*s3StandaloneOptions.bindIp, *s3StandaloneOptions.metricsHttpPort) return s3StandaloneOptions.startS3Server() } // GetCertificateWithUpdate Auto refreshing TSL certificate func (S3opt *S3Options) GetCertificateWithUpdate(*tls.ClientHelloInfo) (*tls.Certificate, error) { certs, err := S3opt.certProvider.KeyMaterial(context.Background()) return &certs.Certs[0], err } func (s3opt *S3Options) startS3Server() bool { filerAddress := pb.ServerAddress(*s3opt.filer) filerBucketsPath := "/buckets" filerGroup := "" grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.client") // metrics read from the filer var metricsAddress string var metricsIntervalSec int for { err := pb.WithGrpcFilerClient(false, 0, filerAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error { resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{}) if err != nil { return fmt.Errorf("get filer %s configuration: %v", filerAddress, err) } filerBucketsPath = resp.DirBuckets filerGroup = resp.FilerGroup metricsAddress, metricsIntervalSec = resp.MetricsAddress, int(resp.MetricsIntervalSec) glog.V(0).Infof("S3 read filer buckets dir: %s", filerBucketsPath) return nil }) if err != nil { glog.V(0).Infof("wait to connect to filer %s grpc address %s", *s3opt.filer, filerAddress.ToGrpcAddress()) time.Sleep(time.Second) } else { glog.V(0).Infof("connected to filer %s grpc address %s", *s3opt.filer, filerAddress.ToGrpcAddress()) break } } go stats_collect.LoopPushingMetric("s3", stats_collect.SourceName(uint32(*s3opt.port)), metricsAddress, metricsIntervalSec) router := mux.NewRouter().SkipClean(true) var localFilerSocket string if s3opt.localFilerSocket != nil { localFilerSocket = *s3opt.localFilerSocket } s3ApiServer, s3ApiServer_err := s3api.NewS3ApiServer(router, &s3api.S3ApiServerOption{ Filer: filerAddress, Port: *s3opt.port, Config: *s3opt.config, DomainName: *s3opt.domainName, BucketsPath: filerBucketsPath, GrpcDialOption: grpcDialOption, AllowEmptyFolder: *s3opt.allowEmptyFolder, AllowDeleteBucketNotEmpty: *s3opt.allowDeleteBucketNotEmpty, LocalFilerSocket: localFilerSocket, DataCenter: *s3opt.dataCenter, FilerGroup: filerGroup, }) if s3ApiServer_err != nil { glog.Fatalf("S3 API Server startup error: %v", s3ApiServer_err) } httpS := &http.Server{Handler: router} if *s3opt.portGrpc == 0 { *s3opt.portGrpc = 10000 + *s3opt.port } if *s3opt.bindIp == "" { *s3opt.bindIp = "localhost" } if runtime.GOOS != "windows" { localSocket := *s3opt.localSocket if localSocket == "" { localSocket = fmt.Sprintf("/tmp/seaweedfs-s3-%d.sock", *s3opt.port) } if err := os.Remove(localSocket); err != nil && !os.IsNotExist(err) { glog.Fatalf("Failed to remove %s, error: %s", localSocket, err.Error()) } go func() { // start on local unix socket s3SocketListener, err := net.Listen("unix", localSocket) if err != nil { glog.Fatalf("Failed to listen on %s: %v", localSocket, err) } httpS.Serve(s3SocketListener) }() } listenAddress := fmt.Sprintf("%s:%d", *s3opt.bindIp, *s3opt.port) s3ApiListener, s3ApiLocalListener, err := util.NewIpAndLocalListeners(*s3opt.bindIp, *s3opt.port, time.Duration(10)*time.Second) if err != nil { glog.Fatalf("S3 API Server listener on %s error: %v", listenAddress, err) } if len(*s3opt.auditLogConfig) > 0 { s3err.InitAuditLog(*s3opt.auditLogConfig) if s3err.Logger != nil { defer s3err.Logger.Close() } } // starting grpc server grpcPort := *s3opt.portGrpc grpcL, grpcLocalL, err := util.NewIpAndLocalListeners(*s3opt.bindIp, grpcPort, 0) if err != nil { glog.Fatalf("s3 failed to listen on grpc port %d: %v", grpcPort, err) } grpcS := pb.NewGrpcServer(security.LoadServerTLS(util.GetViper(), "grpc.s3")) s3_pb.RegisterSeaweedS3Server(grpcS, s3ApiServer) reflection.Register(grpcS) if grpcLocalL != nil { go grpcS.Serve(grpcLocalL) } go grpcS.Serve(grpcL) if *s3opt.tlsPrivateKey != "" { pemfileOptions := pemfile.Options{ CertFile: *s3opt.tlsCertificate, KeyFile: *s3opt.tlsPrivateKey, RefreshDuration: security.CredRefreshingInterval, } if s3opt.certProvider, err = pemfile.NewProvider(pemfileOptions); err != nil { glog.Fatalf("pemfile.NewProvider(%v) failed: %v", pemfileOptions, err) } caCertPool := x509.NewCertPool() if *s3Options.tlsCACertificate != "" { // load CA certificate file and add it to list of client CAs caCertFile, err := ioutil.ReadFile(*s3opt.tlsCACertificate) if err != nil { glog.Fatalf("error reading CA certificate: %v", err) } caCertPool.AppendCertsFromPEM(caCertFile) } clientAuth := tls.NoClientCert if *s3Options.tlsVerifyClientCert { clientAuth = tls.RequireAndVerifyClientCert } httpS.TLSConfig = &tls.Config{ GetCertificate: s3opt.GetCertificateWithUpdate, ClientAuth: clientAuth, ClientCAs: caCertPool, } if *s3opt.portHttps == 0 { glog.V(0).Infof("Start Seaweed S3 API Server %s at https port %d", util.Version(), *s3opt.port) if s3ApiLocalListener != nil { go func() { if err = httpS.ServeTLS(s3ApiLocalListener, "", ""); err != nil { glog.Fatalf("S3 API Server Fail to serve: %v", err) } }() } if err = httpS.ServeTLS(s3ApiListener, "", ""); err != nil { glog.Fatalf("S3 API Server Fail to serve: %v", err) } } else { glog.V(0).Infof("Start Seaweed S3 API Server %s at https port %d", util.Version(), *s3opt.portHttps) s3ApiListenerHttps, s3ApiLocalListenerHttps, _ := util.NewIpAndLocalListeners( *s3opt.bindIp, *s3opt.portHttps, time.Duration(10)*time.Second) if s3ApiLocalListenerHttps != nil { go func() { if err = httpS.ServeTLS(s3ApiLocalListenerHttps, "", ""); err != nil { glog.Fatalf("S3 API Server Fail to serve: %v", err) } }() } go func() { if err = httpS.ServeTLS(s3ApiListenerHttps, "", ""); err != nil { glog.Fatalf("S3 API Server Fail to serve: %v", err) } }() } } if *s3opt.tlsPrivateKey == "" || *s3opt.portHttps > 0 { glog.V(0).Infof("Start Seaweed S3 API Server %s at http port %d", util.Version(), *s3opt.port) if s3ApiLocalListener != nil { go func() { if err = httpS.Serve(s3ApiLocalListener); err != nil { glog.Fatalf("S3 API Server Fail to serve: %v", err) } }() } if err = httpS.Serve(s3ApiListener); err != nil { glog.Fatalf("S3 API Server Fail to serve: %v", err) } } return true }