295 lines
7.4 KiB
Go
295 lines
7.4 KiB
Go
package main
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import (
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"context"
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"encoding/hex"
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"math"
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"net"
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"net/http"
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"time"
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"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
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"github.com/nspcc-dev/neofs-s3-gw/api"
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"github.com/nspcc-dev/neofs-s3-gw/api/auth"
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"github.com/nspcc-dev/neofs-s3-gw/api/cache"
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"github.com/nspcc-dev/neofs-s3-gw/api/handler"
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"github.com/nspcc-dev/neofs-s3-gw/api/layer"
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"github.com/nspcc-dev/neofs-s3-gw/internal/wallet"
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"github.com/nspcc-dev/neofs-sdk-go/policy"
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"github.com/nspcc-dev/neofs-sdk-go/pool"
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"github.com/spf13/viper"
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"go.uber.org/zap"
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)
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type (
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// App is the main application structure.
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App struct {
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pool pool.Pool
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ctr auth.Center
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log *zap.Logger
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cfg *viper.Viper
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tls *tlsConfig
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obj layer.Client
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api api.Handler
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maxClients api.MaxClients
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webDone chan struct{}
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wrkDone chan struct{}
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}
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tlsConfig struct {
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KeyFile string
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CertFile string
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}
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)
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func newApp(ctx context.Context, l *zap.Logger, v *viper.Viper) *App {
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var (
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conns pool.Pool
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key *keys.PrivateKey
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err error
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tls *tlsConfig
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caller api.Handler
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ctr auth.Center
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obj layer.Client
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poolPeers = fetchPeers(l, v)
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reBalance = defaultRebalanceTimer
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conTimeout = defaultConnectTimeout
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reqTimeout = defaultRequestTimeout
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maxClientsCount = defaultMaxClientsCount
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maxClientsDeadline = defaultMaxClientsDeadline
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)
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if v := v.GetDuration(cfgConnectTimeout); v > 0 {
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conTimeout = v
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}
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if v := v.GetDuration(cfgRequestTimeout); v > 0 {
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reqTimeout = v
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}
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if v := v.GetInt(cfgMaxClientsCount); v > 0 {
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maxClientsCount = v
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}
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if v := v.GetDuration(cfgMaxClientsDeadline); v > 0 {
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maxClientsDeadline = v
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}
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if v := v.GetDuration(cfgRebalanceTimer); v > 0 {
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reBalance = v
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}
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password := wallet.GetPassword(v, cfgWalletPassphrase)
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if key, err = wallet.GetKeyFromPath(v.GetString(cfgWallet), v.GetString(cfgAddress), password); err != nil {
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l.Fatal("could not load NeoFS private key", zap.Error(err))
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}
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if v.IsSet(cfgTLSKeyFile) && v.IsSet(cfgTLSCertFile) {
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tls = &tlsConfig{
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KeyFile: v.GetString(cfgTLSKeyFile),
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CertFile: v.GetString(cfgTLSCertFile),
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}
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}
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l.Info("using credentials",
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zap.String("NeoFS", hex.EncodeToString(key.PublicKey().Bytes())))
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opts := &pool.BuilderOptions{
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Key: &key.PrivateKey,
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NodeConnectionTimeout: conTimeout,
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NodeRequestTimeout: reqTimeout,
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ClientRebalanceInterval: reBalance,
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SessionExpirationEpoch: math.MaxUint64,
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}
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conns, err = poolPeers.Build(ctx, opts)
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if err != nil {
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l.Fatal("failed to create connection pool", zap.Error(err))
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}
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cacheCfg := getCacheOptions(v, l)
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// prepare object layer
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obj = layer.NewLayer(l, conns, cacheCfg)
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// prepare auth center
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ctr = auth.New(conns, key, getAccessBoxCacheConfig(v, l))
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handlerOptions := getHandlerOptions(v, l)
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if caller, err = handler.New(l, obj, handlerOptions); err != nil {
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l.Fatal("could not initialize API handler", zap.Error(err))
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}
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return &App{
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ctr: ctr,
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pool: conns,
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log: l,
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cfg: v,
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obj: obj,
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tls: tls,
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api: caller,
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webDone: make(chan struct{}, 1),
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wrkDone: make(chan struct{}, 1),
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maxClients: api.NewMaxClientsMiddleware(maxClientsCount, maxClientsDeadline),
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}
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}
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// Wait waits for application to finish.
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func (a *App) Wait() {
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a.log.Info("application started")
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<-a.webDone // wait for web-server to be stopped
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a.log.Info("application finished")
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}
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// Server runs HTTP server to handle S3 API requests.
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func (a *App) Server(ctx context.Context) {
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var (
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err error
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lis net.Listener
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lic net.ListenConfig
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srv = new(http.Server)
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addr = a.cfg.GetString(cfgListenAddress)
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)
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if lis, err = lic.Listen(ctx, "tcp", addr); err != nil {
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a.log.Fatal("could not prepare listener",
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zap.Error(err))
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}
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router := newS3Router()
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// Attach app-specific routes:
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// attachHealthy(router, a.cli)
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attachMetrics(router, a.cfg, a.log)
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attachProfiler(router, a.cfg, a.log)
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// Attach S3 API:
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domains := fetchDomains(a.cfg)
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a.log.Info("fetch domains, prepare to use API",
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zap.Strings("domains", domains))
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api.Attach(router, domains, a.maxClients, a.api, a.ctr, a.log)
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// Use mux.Router as http.Handler
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srv.Handler = router
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srv.ErrorLog = zap.NewStdLog(a.log)
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go func() {
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a.log.Info("starting server",
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zap.String("bind", addr))
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switch a.tls {
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case nil:
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if err = srv.Serve(lis); err != nil && err != http.ErrServerClosed {
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a.log.Fatal("listen and serve",
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zap.Error(err))
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}
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default:
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a.log.Info("using certificate",
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zap.String("key", a.tls.KeyFile),
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zap.String("cert", a.tls.CertFile))
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if err = srv.ServeTLS(lis, a.tls.CertFile, a.tls.KeyFile); err != nil && err != http.ErrServerClosed {
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a.log.Fatal("listen and serve",
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zap.Error(err))
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}
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}
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}()
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<-ctx.Done()
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ctx, cancel := context.WithTimeout(context.Background(), defaultShutdownTimeout)
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defer cancel()
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a.log.Info("stopping server",
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zap.Error(srv.Shutdown(ctx)))
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close(a.webDone)
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}
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func getCacheOptions(v *viper.Viper, l *zap.Logger) *layer.CachesConfig {
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cacheCfg := layer.DefaultCachesConfigs()
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cacheCfg.Objects.Lifetime = getLifetime(v, l, cfgObjectsCacheLifetime, cacheCfg.Objects.Lifetime)
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cacheCfg.Objects.Size = getSize(v, l, cfgObjectsCacheSize, cacheCfg.Objects.Size)
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cacheCfg.ObjectsList.Lifetime = getLifetime(v, l, cfgListObjectsCacheLifetime, cacheCfg.ObjectsList.Lifetime)
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cacheCfg.ObjectsList.Size = getSize(v, l, cfgListObjectsCacheSize, cacheCfg.ObjectsList.Size)
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cacheCfg.Buckets.Lifetime = getLifetime(v, l, cfgBucketsCacheLifetime, cacheCfg.Buckets.Lifetime)
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cacheCfg.Buckets.Size = getSize(v, l, cfgBucketsCacheSize, cacheCfg.Buckets.Size)
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cacheCfg.Names.Lifetime = getLifetime(v, l, cfgNamesCacheLifetime, cacheCfg.Names.Lifetime)
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cacheCfg.Names.Size = getSize(v, l, cfgNamesCacheSize, cacheCfg.Names.Size)
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cacheCfg.System.Lifetime = getLifetime(v, l, cfgSystemLifetimeSize, cacheCfg.System.Lifetime)
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cacheCfg.System.Size = getSize(v, l, cfgSystemCacheSize, cacheCfg.System.Size)
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return cacheCfg
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}
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func getLifetime(v *viper.Viper, l *zap.Logger, cfgEntry string, defaultValue time.Duration) time.Duration {
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if v.IsSet(cfgEntry) {
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lifetime := v.GetDuration(cfgEntry)
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if lifetime <= 0 {
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l.Error("invalid lifetime, using default value (in seconds)",
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zap.String("parameter", cfgEntry),
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zap.Duration("value in config", lifetime),
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zap.Duration("default", defaultValue))
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} else {
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return lifetime
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}
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}
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return defaultValue
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}
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func getSize(v *viper.Viper, l *zap.Logger, cfgEntry string, defaultValue int) int {
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if v.IsSet(cfgEntry) {
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size := v.GetInt(cfgEntry)
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if size <= 0 {
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l.Error("invalid cache size, using default value",
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zap.String("parameter", cfgEntry),
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zap.Int("value in config", size),
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zap.Int("default", defaultValue))
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} else {
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return size
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}
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}
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return defaultValue
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}
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func getAccessBoxCacheConfig(v *viper.Viper, l *zap.Logger) *cache.Config {
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cacheCfg := cache.DefaultAccessBoxConfig()
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cacheCfg.Lifetime = getLifetime(v, l, cfgAccessBoxCacheLifetime, cacheCfg.Lifetime)
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cacheCfg.Size = getSize(v, l, cfgAccessBoxCacheSize, cacheCfg.Size)
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return cacheCfg
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}
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func getHandlerOptions(v *viper.Viper, l *zap.Logger) *handler.Config {
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var (
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cfg handler.Config
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err error
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policyStr = handler.DefaultPolicy
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)
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if v.IsSet(cfgDefaultPolicy) {
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policyStr = v.GetString(cfgDefaultPolicy)
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}
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if cfg.DefaultPolicy, err = policy.Parse(policyStr); err != nil {
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l.Fatal("couldn't parse container default policy",
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zap.Error(err))
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}
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return &cfg
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}
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