feat(proxyd): customise poller interval and enable cross origin check on web socket upgrader (#10107)

* feat: poller interval arg

* fix: websocket check origin

* fix: check origin behind flag

* fix: rename poller default interval

proxyd/proxyd/config.go

@@ -26,6 +26,7 @@ type ServerConfig struct {
 	MaxRequestBodyLogLen  int  `toml:"max_request_body_log_len"`
 	EnablePprof           bool `toml:"enable_pprof"`
 	EnableXServedByHeader bool `toml:"enable_served_by_header"`
+	AllowAllOrigins       bool `toml:"allow_all_origins"`
 }
 
 type CacheConfig struct {
@@ -113,6 +114,7 @@ type BackendGroupConfig struct {
 
 	ConsensusAware          bool         `toml:"consensus_aware"`
 	ConsensusAsyncHandler   string       `toml:"consensus_handler"`
+	ConsensusPollerInterval TOMLDuration `toml:"consensus_poller_interval"`
 
 	ConsensusBanPeriod          TOMLDuration `toml:"consensus_ban_period"`
 	ConsensusMaxUpdateThreshold TOMLDuration `toml:"consensus_max_update_threshold"`

proxyd/proxyd/consensus_poller.go

@@ -14,7 +14,7 @@ import (
 )
 
 const (
-	PollerInterval = 1 * time.Second
+	DefaultPollerInterval = 1 * time.Second
 )
 
 type OnConsensusBroken func()
@@ -40,6 +40,7 @@ type ConsensusPoller struct {
 	maxUpdateThreshold time.Duration
 	maxBlockLag        uint64
 	maxBlockRange      uint64
+	interval           time.Duration
 }
 
 type backendState struct {
@@ -125,7 +126,7 @@ func (ah *PollerAsyncHandler) Init() {
 	for _, be := range ah.cp.backendGroup.Backends {
 		go func(be *Backend) {
 			for {
-				timer := time.NewTimer(PollerInterval)
+				timer := time.NewTimer(ah.cp.interval)
 				ah.cp.UpdateBackend(ah.ctx, be)
 
 				select {
@@ -141,7 +142,7 @@ func (ah *PollerAsyncHandler) Init() {
 	// create the group consensus poller
 	go func() {
 		for {
-			timer := time.NewTimer(PollerInterval)
+			timer := time.NewTimer(ah.cp.interval)
 			ah.cp.UpdateBackendGroupConsensus(ah.ctx)
 
 			select {
@@ -215,6 +216,12 @@ func WithMinPeerCount(minPeerCount uint64) ConsensusOpt {
 	}
 }
 
+func WithPollerInterval(interval time.Duration) ConsensusOpt {
+	return func(cp *ConsensusPoller) {
+		cp.interval = interval
+	}
+}
+
 func NewConsensusPoller(bg *BackendGroup, opts ...ConsensusOpt) *ConsensusPoller {
 	ctx, cancelFunc := context.WithCancel(context.Background())
 
@@ -230,6 +237,7 @@ func NewConsensusPoller(bg *BackendGroup, opts ...ConsensusOpt) *ConsensusPoller
 		maxUpdateThreshold: 30 * time.Second,
 		maxBlockLag:        8, // 8*12 seconds = 96 seconds ~ 1.6 minutes
 		minPeerCount:       3,
+		interval:           DefaultPollerInterval,
 	}
 
 	for _, opt := range opts {

proxyd/proxyd/proxyd.go

@@ -272,6 +272,14 @@ func Start(config *Config) (*Server, func(), error) {
 		return nil, nil, fmt.Errorf("error creating server: %w", err)
 	}
 
+	// Enable to support browser websocket connections.
+	// See https://pkg.go.dev/github.com/gorilla/websocket#hdr-Origin_Considerations
+	if config.Server.AllowAllOrigins {
+		srv.upgrader.CheckOrigin = func(r *http.Request) bool {
+			return true
+		}
+	}
+
 	if config.Metrics.Enabled {
 		addr := fmt.Sprintf("%s:%d", config.Metrics.Host, config.Metrics.Port)
 		log.Info("starting metrics server", "addr", addr)
@@ -338,6 +346,9 @@ func Start(config *Config) (*Server, func(), error) {
 			if bgcfg.ConsensusMaxBlockRange > 0 {
 				copts = append(copts, WithMaxBlockRange(bgcfg.ConsensusMaxBlockRange))
 			}
+			if bgcfg.ConsensusPollerInterval > 0 {
+				copts = append(copts, WithPollerInterval(time.Duration(bgcfg.ConsensusPollerInterval)))
+			}
 
 			var tracker ConsensusTracker
 			if bgcfg.ConsensusHA {
@@ -349,7 +360,7 @@ func Start(config *Config) (*Server, func(), error) {
 					topts = append(topts, WithLockPeriod(time.Duration(bgcfg.ConsensusHALockPeriod)))
 				}
 				if bgcfg.ConsensusHAHeartbeatInterval > 0 {
-					topts = append(topts, WithLockPeriod(time.Duration(bgcfg.ConsensusHAHeartbeatInterval)))
+					topts = append(topts, WithHeartbeatInterval(time.Duration(bgcfg.ConsensusHAHeartbeatInterval)))
 				}
 				consensusHARedisClient, err := NewRedisClient(bgcfg.ConsensusHARedis.URL)
 				if err != nil {