Unverified Commit d81c3a62 authored by Alexei S's avatar Alexei S Committed by GitHub
Browse files

Seed global random using crypto/rand. (#786)

parent f075f747

main.go

+11 −2
Original line number Diff line number Diff line
@@ -16,6 +16,8 @@ package main 


import (

	"context"

	cryptorand "crypto/rand"

	"encoding/binary"

	"flag"

	"fmt"

	"io/ioutil"
@@ -63,8 +65,6 @@ func main() { 
	semver := fmt.Sprintf("%s+%s", version, commitID)

	// Always set default timeout on HTTP client.

	http.DefaultClient.Timeout = 1500 * time.Millisecond

	// Initialize the global random obj with customs seed.

	rand.Seed(time.Now().UnixNano())



	tmpLogger := server.NewJSONLogger(os.Stdout, zapcore.InfoLevel, server.JSONFormat)
@@ -103,6 +103,15 @@ func main() { 
	startupLogger.Info("Node", zap.String("name", config.GetName()), zap.String("version", semver), zap.String("runtime", runtime.Version()), zap.Int("cpu", runtime.NumCPU()), zap.Int("proc", runtime.GOMAXPROCS(0)))

	startupLogger.Info("Data directory", zap.String("path", config.GetDataDir()))



	// Initialize the global random obj with customs seed.

	var seed int64

	err := binary.Read(cryptorand.Reader, binary.BigEndian, &seed)

	if err != nil {

		startupLogger.Warn("Failed to get strongly random seed, fallback to a less random one.", zap.Error(err))

		seed = time.Now().UnixNano()

	}

	rand.Seed(seed)



	redactedAddresses := make([]string, 0, 1)

	for _, address := range config.GetDatabase().Addresses {

		rawURL := fmt.Sprintf("postgres://%s", address)