package main import ( "context" "crypto/ecdsa" "math" "strconv" "github.com/fasthttp/router" crypto "github.com/nspcc-dev/neofs-crypto" "github.com/nspcc-dev/neofs-http-gw/downloader" "github.com/nspcc-dev/neofs-http-gw/uploader" "github.com/nspcc-dev/neofs-sdk-go/pkg/logger" "github.com/nspcc-dev/neofs-sdk-go/pkg/pool" "github.com/spf13/viper" "github.com/valyala/fasthttp" "go.uber.org/zap" "google.golang.org/grpc/grpclog" ) type ( app struct { log *zap.Logger pool pool.Pool cfg *viper.Viper auxiliaryLog logger.Logger webServer *fasthttp.Server webDone chan struct{} } // App is an interface for the main gateway function. App interface { Wait() Serve(context.Context) } // Option is an application option. Option func(a *app) ) // WithLogger returns Option to set a specific logger. func WithLogger(l *zap.Logger) Option { return func(a *app) { if l == nil { return } a.log = l } } // WithConfig returns Option to use specific Viper configuration. func WithConfig(c *viper.Viper) Option { return func(a *app) { if c == nil { return } a.cfg = c } } func newApp(ctx context.Context, opt ...Option) App { var ( key *ecdsa.PrivateKey err error ) a := &app{ log: zap.L(), cfg: viper.GetViper(), webServer: new(fasthttp.Server), webDone: make(chan struct{}), } for i := range opt { opt[i](a) } a.auxiliaryLog = logger.GRPC(a.log) if a.cfg.GetBool(cmdVerbose) { grpclog.SetLoggerV2(a.auxiliaryLog) } // -- setup FastHTTP server -- a.webServer.Name = "neofs-http-gw" a.webServer.ReadBufferSize = a.cfg.GetInt(cfgWebReadBufferSize) a.webServer.WriteBufferSize = a.cfg.GetInt(cfgWebWriteBufferSize) a.webServer.ReadTimeout = a.cfg.GetDuration(cfgWebReadTimeout) a.webServer.WriteTimeout = a.cfg.GetDuration(cfgWebWriteTimeout) a.webServer.DisableHeaderNamesNormalizing = true a.webServer.NoDefaultServerHeader = true a.webServer.NoDefaultContentType = true a.webServer.MaxRequestBodySize = a.cfg.GetInt(cfgWebMaxRequestBodySize) a.webServer.DisablePreParseMultipartForm = true a.webServer.StreamRequestBody = a.cfg.GetBool(cfgWebStreamRequestBody) // -- -- -- -- -- -- -- -- -- -- -- -- -- -- keystring := a.cfg.GetString(cmdNeoFSKey) if len(keystring) == 0 { a.log.Info("no key specified, creating one automatically for this run") key, err = pool.NewEphemeralKey() } else { key, err = crypto.LoadPrivateKey(keystring) } if err != nil { a.log.Fatal("failed to get neofs credentials", zap.Error(err)) } pb := new(pool.Builder) for i := 0; ; i++ { address := a.cfg.GetString(cfgPeers + "." + strconv.Itoa(i) + ".address") weight := a.cfg.GetFloat64(cfgPeers + "." + strconv.Itoa(i) + ".weight") if address == "" { break } if weight <= 0 { // unspecified or wrong weight = 1 } pb.AddNode(address, weight) a.log.Info("add connection", zap.String("address", address), zap.Float64("weight", weight)) } opts := &pool.BuilderOptions{ Key: key, NodeConnectionTimeout: a.cfg.GetDuration(cfgConTimeout), NodeRequestTimeout: a.cfg.GetDuration(cfgReqTimeout), ClientRebalanceInterval: a.cfg.GetDuration(cfgRebalance), SessionExpirationEpoch: math.MaxUint64, } a.pool, err = pb.Build(ctx, opts) if err != nil { a.log.Fatal("failed to create connection pool", zap.Error(err)) } return a } func (a *app) Wait() { a.log.Info("starting application") <-a.webDone // wait for web-server to be stopped } func (a *app) Serve(ctx context.Context) { go func() { <-ctx.Done() a.log.Info("shutting down web server", zap.Error(a.webServer.Shutdown())) close(a.webDone) }() edts := a.cfg.GetBool(cfgUploaderHeaderEnableDefaultTimestamp) uploader := uploader.New(a.log, a.pool, edts) downloader, err := downloader.New(ctx, a.log, a.pool) if err != nil { a.log.Fatal("failed to create downloader", zap.Error(err)) } // Configure router. r := router.New() r.RedirectTrailingSlash = true r.POST("/upload/{cid}", uploader.Upload) a.log.Info("added path /upload/{cid}") r.GET("/get/{cid}/{oid}", downloader.DownloadByAddress) a.log.Info("added path /get/{cid}/{oid}") r.GET("/get_by_attribute/{cid}/{attr_key}/{attr_val:*}", downloader.DownloadByAttribute) a.log.Info("added path /get_by_attribute/{cid}/{attr_key}/{attr_val:*}") // enable metrics if a.cfg.GetBool(cmdMetrics) { a.log.Info("added path /metrics/") attachMetrics(r, a.auxiliaryLog) } // enable pprof if a.cfg.GetBool(cmdPprof) { a.log.Info("added path /debug/pprof/") attachProfiler(r) } bind := a.cfg.GetString(cfgListenAddress) tlsCertPath := a.cfg.GetString(cfgTLSCertificate) tlsKeyPath := a.cfg.GetString(cfgTLSKey) a.webServer.Handler = r.Handler if tlsCertPath == "" && tlsKeyPath == "" { a.log.Info("running web server", zap.String("address", bind)) err = a.webServer.ListenAndServe(bind) } else { a.log.Info("running web server (TLS-enabled)", zap.String("address", bind)) err = a.webServer.ListenAndServeTLS(bind, tlsCertPath, tlsKeyPath) } if err != nil { a.log.Fatal("could not start server", zap.Error(err)) } }