package main import ( "context" "crypto/ecdsa" "strconv" "github.com/fasthttp/router" sdk "github.com/nspcc-dev/cdn-sdk" "github.com/nspcc-dev/cdn-sdk/creds/neofs" "github.com/nspcc-dev/cdn-sdk/logger" "github.com/nspcc-dev/cdn-sdk/pool" "github.com/spf13/viper" "github.com/valyala/fasthttp" "go.uber.org/zap" "google.golang.org/grpc" "google.golang.org/grpc/grpclog" "google.golang.org/grpc/keepalive" ) type ( app struct { cli sdk.Client pool pool.Client log *zap.Logger cfg *viper.Viper key *ecdsa.PrivateKey wlog logger.Logger web *fasthttp.Server jobDone chan struct{} webDone chan struct{} enableDefaultTimestamp bool } App interface { Wait() Worker(context.Context) Serve(context.Context) } Option func(a *app) ) func WithLogger(l *zap.Logger) Option { return func(a *app) { if l == nil { return } a.log = l } } 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 { a := &app{ log: zap.L(), cfg: viper.GetViper(), web: new(fasthttp.Server), jobDone: make(chan struct{}), webDone: make(chan struct{}), } for i := range opt { opt[i](a) } a.enableDefaultTimestamp = a.cfg.GetBool(cfgUploaderHeaderEnableDefaultTimestamp) a.wlog = logger.GRPC(a.log) if a.cfg.GetBool(cmdVerbose) { grpclog.SetLoggerV2(a.wlog) } conTimeout := a.cfg.GetDuration(cfgConTimeout) reqTimeout := a.cfg.GetDuration(cfgReqTimeout) tckTimeout := a.cfg.GetDuration(cfgRebalance) // -- setup FastHTTP server: -- a.web.Name = "neofs-http-gate" a.web.ReadBufferSize = a.cfg.GetInt(cfgWebReadBufferSize) a.web.WriteBufferSize = a.cfg.GetInt(cfgWebWriteBufferSize) a.web.ReadTimeout = a.cfg.GetDuration(cfgWebReadTimeout) a.web.WriteTimeout = a.cfg.GetDuration(cfgWebWriteTimeout) a.web.DisableHeaderNamesNormalizing = true a.web.NoDefaultServerHeader = true a.web.NoDefaultContentType = true // -- -- -- -- -- -- -- -- -- -- connections := make(map[string]float64) 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 } connections[address] = weight a.log.Info("add connection peer", zap.String("address", address), zap.Float64("weight", weight)) } cred, err := neofs.New(a.cfg.GetString(cmdNeoFSKey)) if err != nil { a.log.Fatal("could not prepare credentials", zap.Error(err)) } a.pool, err = pool.New(ctx, pool.WithLogger(a.log), pool.WithCredentials(cred), pool.WithWeightPool(connections), pool.WithTickerTimeout(tckTimeout), pool.WithConnectTimeout(conTimeout), pool.WithRequestTimeout(reqTimeout), pool.WithAPIPreparer(sdk.APIPreparer), pool.WithGRPCOptions( grpc.WithBlock(), grpc.WithInsecure(), grpc.WithKeepaliveParams(keepalive.ClientParameters{ Time: a.cfg.GetDuration(cfgKeepaliveTime), Timeout: a.cfg.GetDuration(cfgKeepaliveTimeout), PermitWithoutStream: a.cfg.GetBool(cfgKeepalivePermitWithoutStream), }))) if err != nil { a.log.Fatal("could not prepare connection pool", zap.Error(err)) } a.cli, err = sdk.New(ctx, sdk.WithLogger(a.log), sdk.WithCredentials(cred), sdk.WithConnectionPool(a.pool), sdk.WithAPIPreparer(sdk.APIPreparer)) if err != nil { a.log.Fatal("could not prepare sdk client", zap.Error(err)) } return a } func (a *app) Wait() { a.log.Info("application started") select { case <-a.jobDone: // wait for job is stopped <-a.webDone case <-a.webDone: // wait for web-server is stopped <-a.jobDone } } func (a *app) Worker(ctx context.Context) { a.pool.Worker(ctx) close(a.jobDone) } func (a *app) Serve(ctx context.Context) { go func() { <-ctx.Done() a.log.Info("stop web-server", zap.Error(a.web.Shutdown())) close(a.webDone) }() r := router.New() r.RedirectTrailingSlash = true a.log.Info("enabled /upload/{cid}") r.POST("/upload/{cid}", a.upload) a.log.Info("enabled /get/{cid}/{oid}") r.GET("/get/{cid}/{oid}", a.byAddress) a.log.Info("enabled /get_by_attribute/{cid}/{attr_key}/{attr_val:*}") r.GET("/get_by_attribute/{cid}/{attr_key}/{attr_val:*}", a.byAttribute) // attaching /-/(ready,healthy) attachHealthy(r, a.pool.Status) // enable metrics if a.cfg.GetBool(cmdMetrics) { a.log.Info("enabled /metrics/") attachMetrics(r, a.wlog) } // enable pprof if a.cfg.GetBool(cmdPprof) { a.log.Info("enabled /debug/pprof/") attachProfiler(r) } bind := a.cfg.GetString(cfgListenAddress) a.log.Info("run gateway server", zap.String("address", bind)) a.web.Handler = r.Handler if err := a.web.ListenAndServe(bind); err != nil { a.log.Fatal("could not start server", zap.Error(err)) } }