package s3api import ( "context" "fmt" "net" "net/http" "strings" "time" "github.com/seaweedfs/seaweedfs/weed/filer" "github.com/seaweedfs/seaweedfs/weed/glog" "github.com/seaweedfs/seaweedfs/weed/pb/s3_pb" "github.com/seaweedfs/seaweedfs/weed/util/grace" "github.com/gorilla/mux" "github.com/seaweedfs/seaweedfs/weed/pb" . "github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants" "github.com/seaweedfs/seaweedfs/weed/s3api/s3err" "github.com/seaweedfs/seaweedfs/weed/security" "github.com/seaweedfs/seaweedfs/weed/util" "google.golang.org/grpc" ) type S3ApiServerOption struct { Filer pb.ServerAddress Port int Config string DomainName string AllowedOrigins []string BucketsPath string GrpcDialOption grpc.DialOption AllowEmptyFolder bool AllowDeleteBucketNotEmpty bool LocalFilerSocket string DataCenter string FilerGroup string } type S3ApiServer struct { s3_pb.UnimplementedSeaweedS3Server option *S3ApiServerOption iam *IdentityAccessManagement cb *CircuitBreaker randomClientId int32 filerGuard *security.Guard client *http.Client bucketRegistry *BucketRegistry } func NewS3ApiServer(router *mux.Router, option *S3ApiServerOption) (s3ApiServer *S3ApiServer, err error) { v := util.GetViper() signingKey := v.GetString("jwt.filer_signing.key") v.SetDefault("jwt.filer_signing.expires_after_seconds", 10) expiresAfterSec := v.GetInt("jwt.filer_signing.expires_after_seconds") readSigningKey := v.GetString("jwt.filer_signing.read.key") v.SetDefault("jwt.filer_signing.read.expires_after_seconds", 60) readExpiresAfterSec := v.GetInt("jwt.filer_signing.read.expires_after_seconds") v.SetDefault("cors.allowed_origins.values", "*") if (option.AllowedOrigins == nil) || (len(option.AllowedOrigins) == 0) { allowedOrigins := v.GetString("cors.allowed_origins.values") domains := strings.Split(allowedOrigins, ",") option.AllowedOrigins = domains } s3ApiServer = &S3ApiServer{ option: option, iam: NewIdentityAccessManagement(option), randomClientId: util.RandomInt32(), filerGuard: security.NewGuard([]string{}, signingKey, expiresAfterSec, readSigningKey, readExpiresAfterSec), cb: NewCircuitBreaker(option), } if option.Config != "" { grace.OnReload(func() { if err := s3ApiServer.iam.loadS3ApiConfigurationFromFile(option.Config); err != nil { glog.Errorf("fail to load config file %s: %v", option.Config, err) } else { glog.V(0).Infof("Loaded %d identities from config file %s", len(s3ApiServer.iam.identities), option.Config) } }) } s3ApiServer.bucketRegistry = NewBucketRegistry(s3ApiServer) if option.LocalFilerSocket == "" { s3ApiServer.client = &http.Client{Transport: &http.Transport{ MaxIdleConns: 1024, MaxIdleConnsPerHost: 1024, }} } else { s3ApiServer.client = &http.Client{ Transport: &http.Transport{ DialContext: func(_ context.Context, _, _ string) (net.Conn, error) { return net.Dial("unix", option.LocalFilerSocket) }, }, } } s3ApiServer.registerRouter(router) go s3ApiServer.subscribeMetaEvents("s3", time.Now().UnixNano(), filer.DirectoryEtcRoot, []string{option.BucketsPath}) return s3ApiServer, nil } func (s3a *S3ApiServer) registerRouter(router *mux.Router) { // API Router apiRouter := router.PathPrefix("/").Subrouter() // Readiness Probe apiRouter.Methods("GET").Path("/status").HandlerFunc(s3a.StatusHandler) apiRouter.Methods("OPTIONS").HandlerFunc( func(w http.ResponseWriter, r *http.Request) { origin := r.Header.Get("Origin") if origin != "" { if s3a.option.AllowedOrigins == nil || len(s3a.option.AllowedOrigins) == 0 || s3a.option.AllowedOrigins[0] == "*" { origin = "*" } else { originFound := false for _, allowedOrigin := range s3a.option.AllowedOrigins { if origin == allowedOrigin { originFound = true } } if !originFound { writeFailureResponse(w, r, http.StatusForbidden) return } } } w.Header().Set("Access-Control-Allow-Origin", origin) w.Header().Set("Access-Control-Expose-Headers", "*") w.Header().Set("Access-Control-Allow-Methods", "*") w.Header().Set("Access-Control-Allow-Headers", "*") writeSuccessResponseEmpty(w, r) }) var routers []*mux.Router if s3a.option.DomainName != "" { domainNames := strings.Split(s3a.option.DomainName, ",") for _, domainName := range domainNames { routers = append(routers, apiRouter.Host( fmt.Sprintf("%s.%s:%d", "{bucket:.+}", domainName, s3a.option.Port)).Subrouter()) routers = append(routers, apiRouter.Host( fmt.Sprintf("%s.%s", "{bucket:.+}", domainName)).Subrouter()) } } routers = append(routers, apiRouter.PathPrefix("/{bucket}").Subrouter()) for _, bucket := range routers { // each case should follow the next rule: // - requesting object with query must precede any other methods // - requesting object must precede any methods with buckets // - requesting bucket with query must precede raw methods with buckets // - requesting bucket must be processed in the end // objects with query // CopyObjectPart bucket.Methods("PUT").Path("/{object:.+}").HeadersRegexp("X-Amz-Copy-Source", `.*?(\/|%2F).*?`).HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.CopyObjectPartHandler, ACTION_WRITE)), "PUT")).Queries("partNumber", "{partNumber:[0-9]+}", "uploadId", "{uploadId:.*}") // PutObjectPart bucket.Methods("PUT").Path("/{object:.+}").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.PutObjectPartHandler, ACTION_WRITE)), "PUT")).Queries("partNumber", "{partNumber:[0-9]+}", "uploadId", "{uploadId:.*}") // CompleteMultipartUpload bucket.Methods("POST").Path("/{object:.+}").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.CompleteMultipartUploadHandler, ACTION_WRITE)), "POST")).Queries("uploadId", "{uploadId:.*}") // NewMultipartUpload bucket.Methods("POST").Path("/{object:.+}").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.NewMultipartUploadHandler, ACTION_WRITE)), "POST")).Queries("uploads", "") // AbortMultipartUpload bucket.Methods("DELETE").Path("/{object:.+}").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.AbortMultipartUploadHandler, ACTION_WRITE)), "DELETE")).Queries("uploadId", "{uploadId:.*}") // ListObjectParts bucket.Methods("GET").Path("/{object:.+}").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.ListObjectPartsHandler, ACTION_READ)), "GET")).Queries("uploadId", "{uploadId:.*}") // ListMultipartUploads bucket.Methods("GET").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.ListMultipartUploadsHandler, ACTION_READ)), "GET")).Queries("uploads", "") // GetObjectTagging bucket.Methods("GET").Path("/{object:.+}").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.GetObjectTaggingHandler, ACTION_READ)), "GET")).Queries("tagging", "") // PutObjectTagging bucket.Methods("PUT").Path("/{object:.+}").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.PutObjectTaggingHandler, ACTION_TAGGING)), "PUT")).Queries("tagging", "") // DeleteObjectTagging bucket.Methods("DELETE").Path("/{object:.+}").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.DeleteObjectTaggingHandler, ACTION_TAGGING)), "DELETE")).Queries("tagging", "") // PutObjectACL bucket.Methods("PUT").Path("/{object:.+}").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.PutObjectAclHandler, ACTION_WRITE_ACP)), "PUT")).Queries("acl", "") // PutObjectRetention bucket.Methods("PUT").Path("/{object:.+}").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.PutObjectRetentionHandler, ACTION_WRITE)), "PUT")).Queries("retention", "") // PutObjectLegalHold bucket.Methods("PUT").Path("/{object:.+}").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.PutObjectLegalHoldHandler, ACTION_WRITE)), "PUT")).Queries("legal-hold", "") // PutObjectLockConfiguration bucket.Methods("PUT").Path("/{object:.+}").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.PutObjectLockConfigurationHandler, ACTION_WRITE)), "PUT")).Queries("object-lock", "") // GetObjectACL bucket.Methods("GET").Path("/{object:.+}").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.GetObjectAclHandler, ACTION_READ_ACP)), "GET")).Queries("acl", "") // objects with query // raw objects // HeadObject bucket.Methods("HEAD").Path("/{object:.+}").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.HeadObjectHandler, ACTION_READ)), "GET")) // GetObject, but directory listing is not supported bucket.Methods("GET").Path("/{object:.+}").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.GetObjectHandler, ACTION_READ)), "GET")) // CopyObject bucket.Methods("PUT").Path("/{object:.+}").HeadersRegexp("X-Amz-Copy-Source", ".*?(\\/|%2F).*?").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.CopyObjectHandler, ACTION_WRITE)), "COPY")) // PutObject bucket.Methods("PUT").Path("/{object:.+}").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.PutObjectHandler, ACTION_WRITE)), "PUT")) // DeleteObject bucket.Methods("DELETE").Path("/{object:.+}").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.DeleteObjectHandler, ACTION_WRITE)), "DELETE")) // raw objects // buckets with query // DeleteMultipleObjects bucket.Methods("POST").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.DeleteMultipleObjectsHandler, ACTION_WRITE)), "DELETE")).Queries("delete", "") // GetBucketACL bucket.Methods("GET").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.GetBucketAclHandler, ACTION_READ_ACP)), "GET")).Queries("acl", "") // PutBucketACL bucket.Methods("PUT").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.PutBucketAclHandler, ACTION_WRITE_ACP)), "PUT")).Queries("acl", "") // GetBucketPolicy bucket.Methods("GET").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.GetBucketPolicyHandler, ACTION_READ)), "GET")).Queries("policy", "") // PutBucketPolicy bucket.Methods("PUT").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.PutBucketPolicyHandler, ACTION_WRITE)), "PUT")).Queries("policy", "") // DeleteBucketPolicy bucket.Methods("DELETE").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.DeleteBucketPolicyHandler, ACTION_WRITE)), "DELETE")).Queries("policy", "") // GetBucketCors bucket.Methods("GET").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.GetBucketCorsHandler, ACTION_READ)), "GET")).Queries("cors", "") // PutBucketCors bucket.Methods("PUT").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.PutBucketCorsHandler, ACTION_WRITE)), "PUT")).Queries("cors", "") // DeleteBucketCors bucket.Methods("DELETE").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.DeleteBucketCorsHandler, ACTION_WRITE)), "DELETE")).Queries("cors", "") // GetBucketLifecycleConfiguration bucket.Methods("GET").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.GetBucketLifecycleConfigurationHandler, ACTION_READ)), "GET")).Queries("lifecycle", "") // PutBucketLifecycleConfiguration bucket.Methods("PUT").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.PutBucketLifecycleConfigurationHandler, ACTION_WRITE)), "PUT")).Queries("lifecycle", "") // DeleteBucketLifecycleConfiguration bucket.Methods("DELETE").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.DeleteBucketLifecycleHandler, ACTION_WRITE)), "DELETE")).Queries("lifecycle", "") // GetBucketLocation bucket.Methods("GET").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.GetBucketLocationHandler, ACTION_READ)), "GET")).Queries("location", "") // GetBucketRequestPayment bucket.Methods("GET").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.GetBucketRequestPaymentHandler, ACTION_READ)), "GET")).Queries("requestPayment", "") // GetBucketVersioning bucket.Methods("GET").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.GetBucketVersioningHandler, ACTION_READ)), "GET")).Queries("versioning", "") bucket.Methods("PUT").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.PutBucketVersioningHandler, ACTION_WRITE)), "PUT")).Queries("versioning", "") // ListObjectsV2 bucket.Methods("GET").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.ListObjectsV2Handler, ACTION_LIST)), "LIST")).Queries("list-type", "2") // buckets with query // PutBucketOwnershipControls bucket.Methods("PUT").HandlerFunc(track(s3a.iam.Auth(s3a.PutBucketOwnershipControls, ACTION_ADMIN), "PUT")).Queries("ownershipControls", "") //GetBucketOwnershipControls bucket.Methods("GET").HandlerFunc(track(s3a.iam.Auth(s3a.GetBucketOwnershipControls, ACTION_READ), "GET")).Queries("ownershipControls", "") //DeleteBucketOwnershipControls bucket.Methods("DELETE").HandlerFunc(track(s3a.iam.Auth(s3a.DeleteBucketOwnershipControls, ACTION_ADMIN), "DELETE")).Queries("ownershipControls", "") // raw buckets // PostPolicy bucket.Methods("POST").HeadersRegexp("Content-Type", "multipart/form-data*").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.PostPolicyBucketHandler, ACTION_WRITE)), "POST")) // HeadBucket bucket.Methods("HEAD").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.HeadBucketHandler, ACTION_READ)), "GET")) // PutBucket bucket.Methods("PUT").HandlerFunc(track(s3a.PutBucketHandler, "PUT")) // DeleteBucket bucket.Methods("DELETE").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.DeleteBucketHandler, ACTION_WRITE)), "DELETE")) // ListObjectsV1 (Legacy) bucket.Methods("GET").HandlerFunc(track(s3a.iam.Auth(s3a.cb.Limit(s3a.ListObjectsV1Handler, ACTION_LIST)), "LIST")) // raw buckets } // ListBuckets apiRouter.Methods("GET").Path("/").HandlerFunc(track(s3a.ListBucketsHandler, "LIST")) // NotFound apiRouter.NotFoundHandler = http.HandlerFunc(s3err.NotFoundHandler) }