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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,5 @@ | ||
| --- | ||
| default: minor | ||
| --- | ||
|
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| # Add explored support |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,195 @@ | ||
| package nodes | ||
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| import ( | ||
| "context" | ||
| "errors" | ||
| "fmt" | ||
| "net" | ||
| "net/http" | ||
| "os" | ||
| "path/filepath" | ||
| "strings" | ||
| "time" | ||
|
|
||
| "go.sia.tech/core/gateway" | ||
| "go.sia.tech/coreutils" | ||
| "go.sia.tech/coreutils/chain" | ||
| "go.sia.tech/coreutils/syncer" | ||
| "go.sia.tech/coreutils/testutil" | ||
| "go.sia.tech/explored/api" | ||
| "go.sia.tech/explored/config" | ||
| "go.sia.tech/explored/exchangerates" | ||
| "go.sia.tech/explored/explorer" | ||
| "go.sia.tech/explored/persist/sqlite" | ||
| "go.uber.org/zap" | ||
| "lukechampine.com/frand" | ||
| ) | ||
|
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| // StartExplored starts a new explored node. It listens on random ports and registers | ||
| // itself with the Manager. This function blocks until the context is | ||
| // canceled. All restources will be cleaned up before the funcion returns. | ||
| func (m *Manager) StartExplored(ctx context.Context, ready chan<- struct{}) (err error) { | ||
| defer func() { | ||
| if r := recover(); r != nil && err == nil { | ||
| err = fmt.Errorf("panic: %v", r) | ||
| } | ||
| }() | ||
|
|
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| done, err := m.incrementWaitGroup() | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer done() | ||
|
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| node := Node{ | ||
| ID: NodeID(frand.Bytes(8)), | ||
| Type: NodeTypeExplored, | ||
| } | ||
| log := m.log.Named("explored." + node.ID.String()) | ||
|
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||
| dir, err := createNodeDir(m.dir, node.ID) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to create node directory: %w", err) | ||
| } | ||
| defer os.RemoveAll(dir) | ||
|
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| httpListener, err := net.Listen("tcp", ":0") | ||
| if err != nil { | ||
| return fmt.Errorf("failed to listen on http address: %w", err) | ||
| } | ||
| defer httpListener.Close() | ||
|
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| network := m.chain.TipState().Network | ||
|
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| var cm *chain.Manager | ||
| var s *syncer.Syncer | ||
| if m.shareConsensus { | ||
| cm = m.chain | ||
| s = m.syncer | ||
| } else { | ||
| // start a chain manager | ||
| genesisIndex, ok := m.chain.BestIndex(0) | ||
| if !ok { | ||
| return errors.New("failed to get genesis index") | ||
| } | ||
| genesis, ok := m.chain.Block(genesisIndex.ID) | ||
| if !ok { | ||
| return errors.New("failed to get genesis block") | ||
| } | ||
| bdb, err := coreutils.OpenBoltChainDB(filepath.Join(dir, "consensus.db")) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to open bolt db: %w", err) | ||
| } | ||
| defer bdb.Close() | ||
| dbstore, tipState, err := chain.NewDBStore(bdb, network, genesis) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to create dbstore: %w", err) | ||
| } | ||
|
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| cm = chain.NewManager(dbstore, tipState) | ||
|
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| syncerListener, err := net.Listen("tcp", ":0") | ||
| if err != nil { | ||
| return fmt.Errorf("failed to listen on syncer address: %w", err) | ||
| } | ||
| defer syncerListener.Close() | ||
|
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||
| // start a syncer | ||
| _, port, err := net.SplitHostPort(syncerListener.Addr().String()) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to split syncer address: %w", err) | ||
| } | ||
| s = syncer.New(syncerListener, cm, testutil.NewEphemeralPeerStore(), gateway.Header{ | ||
| GenesisID: genesisIndex.ID, | ||
| UniqueID: gateway.GenerateUniqueID(), | ||
| NetAddress: "127.0.0.1" + port, | ||
| }, syncer.WithLogger(log.Named("syncer")), | ||
| syncer.WithPeerDiscoveryInterval(5*time.Second), | ||
| syncer.WithSyncInterval(5*time.Second), | ||
| syncer.WithMaxInboundPeers(10000), | ||
| syncer.WithMaxOutboundPeers(10000)) | ||
| defer s.Close() | ||
| go s.Run() | ||
|
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| node.SyncerAddress = syncerListener.Addr().String() | ||
| // connect to the cluster syncer | ||
| _, err = m.syncer.Connect(ctx, node.SyncerAddress) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to connect to cluster syncer: %w", err) | ||
| } | ||
| } | ||
|
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||
| store, err := sqlite.OpenDatabase(filepath.Join(dir, "explored.sqlite3"), log.Named("sqlite3")) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to open sqlite database: %w", err) | ||
| } | ||
| defer store.Close() | ||
|
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||
| e, err := explorer.NewExplorer(cm, store, 10, config.Scanner{ | ||
| Threads: 4, | ||
| Timeout: 10 * time.Second, | ||
| MaxLastScan: 5 * time.Minute, | ||
| MinLastAnnouncement: 365 * 24 * time.Hour, | ||
| }, log.Named("explorer")) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to create explorer: %w", err) | ||
| } | ||
| timeoutCtx, timeoutCancel := context.WithTimeout(context.Background(), 60*time.Second) | ||
| defer timeoutCancel() | ||
| defer e.Shutdown(timeoutCtx) | ||
|
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||
| var sources []exchangerates.Source | ||
| sources = append(sources, exchangerates.NewKraken(map[string]string{ | ||
| exchangerates.CurrencyUSD: exchangerates.KrakenPairSiacoinUSD, | ||
| exchangerates.CurrencyEUR: exchangerates.KrakenPairSiacoinEUR, | ||
| exchangerates.CurrencyBTC: exchangerates.KrakenPairSiacoinBTC, | ||
| }, time.Minute)) | ||
|
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| ex, err := exchangerates.NewAverager(true, sources...) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to create exchange rate source: %w", err) | ||
| } | ||
| go ex.Start(ctx) | ||
|
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||
| api := api.NewServer(e, cm, s, ex) | ||
| server := &http.Server{ | ||
| Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | ||
| if strings.HasPrefix(r.URL.Path, "/api") { | ||
| r.URL.Path = strings.TrimPrefix(r.URL.Path, "/api") | ||
| api.ServeHTTP(w, r) | ||
| return | ||
| } | ||
| http.NotFound(w, r) | ||
| }), | ||
| ReadTimeout: 15 * time.Second, | ||
| } | ||
| defer server.Close() | ||
| go server.Serve(httpListener) | ||
|
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| node.APIAddress = "http://" + httpListener.Addr().String() | ||
|
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| waitForSync := func() error { | ||
| tip, err := e.Tip() | ||
| if err != nil { | ||
| return err | ||
| } | ||
| // wait for sync | ||
| for m.chain.Tip() != tip { | ||
| select { | ||
| case <-ctx.Done(): | ||
| return ctx.Err() | ||
| case <-time.After(100 * time.Millisecond): | ||
| } | ||
| } | ||
| return nil | ||
| } | ||
|
|
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| if err := waitForSync(); err != nil { | ||
| return fmt.Errorf("failed to wait for sync: %w", err) | ||
| } | ||
|
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| log.Info("node started", zap.String("network", cm.TipState().Network.Name), zap.String("http", httpListener.Addr().String())) | ||
| m.addNodeAndWait(ctx, node, ready) | ||
|
|
||
| return nil | ||
| } |
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