Settings

proxyd/Dockerfile

@@ -6,7 +6,7 @@ ARG GITVERSION=docker
 
 RUN apk add make jq git gcc musl-dev linux-headers
 
-COPY ./proxyd /app
+COPY . /app
 
 WORKDIR /app
 
@@ -16,7 +16,7 @@ FROM alpine:3.18
 
 RUN apk add bind-tools jq curl bash git redis
 
-COPY ./proxyd/entrypoint.sh /bin/entrypoint.sh
+COPY ./entrypoint.sh /bin/entrypoint.sh
 
 RUN apk update && \
     apk add ca-certificates && \
@@ -24,9 +24,11 @@ RUN apk update && \
 
 EXPOSE 8080
 
-VOLUME /etc/proxyd
+# VOLUME /etc/proxyd
+
+ADD ./docker.toml /proxyd.toml
 
 COPY --from=builder /app/bin/proxyd /bin/proxyd
 
 ENTRYPOINT ["/bin/entrypoint.sh"]
-CMD ["/bin/proxyd", "/etc/proxyd/proxyd.toml"]
+CMD ["/bin/proxyd", "/proxyd.toml"]

proxyd/config.go

@@ -13,12 +13,16 @@ import (
 type ServerConfig struct {
 	RPCHost           string `toml:"rpc_host"`
 	RPCPort           int    `toml:"rpc_port"`
+	EnableWS          bool   `toml:"enable_ws"`
 	WSHost            string `toml:"ws_host"`
 	WSPort            int    `toml:"ws_port"`
 	MaxBodySizeBytes  int64  `toml:"max_body_size_bytes"`
 	MaxConcurrentRPCs int64  `toml:"max_concurrent_rpcs"`
 	LogLevel          string `toml:"log_level"`
 
+	// Allow direct client connection without x_forwarded_for header for local tests
+	AllowDirect       bool   `toml:"allow_direct"`
+
 	// TimeoutSeconds specifies the maximum time spent serving an HTTP request. Note that isn't used for websocket connections
 	TimeoutSeconds int `toml:"timeout_seconds"`
 

proxyd/docker-compose.yml

@@ -0,0 +1,20 @@
+services:
+  redis:
+    container_name: redis
+    image: redis:6.2-alpine
+    restart: always
+    #networks:
+    #  - tornado_net
+    command: ["redis-server"]
+  proxyd:
+    container_name: proxyd
+    image: proxyd
+    restart: always
+    #networks:
+    #  - tornado_net
+    environment:
+      - REDIS_URL=redis://redis:6379
+      - RPC_URL=
+      - WS_URL=
+    ports:
+      - '127.0.0.1:8544:8544'

proxyd/docker.toml

@@ -0,0 +1,171 @@
+ws_method_whitelist = [
+  "eth_subscribe",
+  "eth_unsubscribe",
+  "eth_blobBaseFee",
+  "eth_blockNumber",
+  "eth_call",
+  "eth_chainId",
+  "eth_estimateGas",
+  "eth_feeHistory",
+  "eth_gasPrice",
+  "eth_getAccount",
+  "eth_getBalance",
+  "eth_getBlockByHash",
+  "eth_getBlockByNumber",
+  "eth_getBlockReceipts",
+  "eth_getBlockTransactionCountByHash",
+  "eth_getBlockTransactionCountByNumber",
+  "eth_getCode",
+  "eth_getFilterChanges",
+  "eth_getFilterLogs",
+  "eth_getLogs",
+  "eth_getProof",
+  "eth_getStorageAt",
+  "eth_getTransactionByBlockHashAndIndex",
+  "eth_getTransactionByBlockNumberAndIndex",
+  "eth_getTransactionByHash",
+  "eth_getTransactionCount",
+  "eth_getTransactionReceipt",
+  "eth_getUncleCountByBlockHash",
+  "eth_getUncleCountByBlockNumber",
+  "eth_maxPriorityFeePerGas",
+  "eth_newBlockFilter",
+  "eth_newFilter",
+  "eth_newPendingTransactionFilter",
+  "eth_syncing",
+  "eth_uninstallFilter",
+  "eth_sendRawTransaction",
+  "net_version",
+  "web3_clientVersion",
+  "web3_sha3",
+  # tracers for archive nodes
+  "trace_block",
+  "trace_call",
+  "trace_callMany",
+  "trace_filter",
+  "trace_rawTransaction",
+  "trace_replayBlockTransactions",
+  "trace_replayTransaction",
+  "trace_transaction",
+  "debug_getBadBlocks",
+  "debug_storageRangeAt",
+  "debug_getTrieFlushInterval",
+  "debug_traceBlock",
+  "debug_traceBlockByHash",
+  "debug_traceBlockByNumber",
+  "debug_traceCall",
+  "debug_traceTransaction",
+]
+ws_backend_group = "main"
+
+[rpc_method_mappings]
+eth_blobBaseFee = "main"
+eth_blockNumber = "main"
+eth_call = "main"
+eth_chainId = "main"
+eth_estimateGas = "main"
+eth_feeHistory = "main"
+eth_gasPrice = "main"
+eth_getAccount = "main"
+eth_getBalance = "main"
+eth_getBlockByHash = "main"
+eth_getBlockByNumber = "main"
+eth_getBlockReceipts = "main"
+eth_getBlockTransactionCountByHash = "main"
+eth_getBlockTransactionCountByNumber = "main"
+eth_getCode = "main"
+eth_getFilterChanges = "main"
+eth_getFilterLogs = "main"
+eth_getLogs = "main"
+eth_getProof = "main"
+eth_getStorageAt = "main"
+eth_getTransactionByBlockHashAndIndex = "main"
+eth_getTransactionByBlockNumberAndIndex = "main"
+eth_getTransactionByHash = "main"
+eth_getTransactionCount = "main"
+eth_getTransactionReceipt = "main"
+eth_getUncleCountByBlockHash = "main"
+eth_getUncleCountByBlockNumber = "main"
+eth_maxPriorityFeePerGas = "main"
+eth_newBlockFilter = "main"
+eth_newFilter = "main"
+eth_newPendingTransactionFilter = "main"
+eth_syncing = "main"
+eth_uninstallFilter = "main"
+eth_sendRawTransaction = "main"
+net_version = "main"
+web3_clientVersion = "main"
+web3_sha3 = "main"
+trace_block = "main"
+trace_call = "main"
+trace_callMany = "main"
+trace_filter = "main"
+trace_rawTransaction = "main"
+trace_replayBlockTransactions = "main"
+trace_replayTransaction = "main"
+trace_transaction = "main"
+debug_getBadBlocks = "main"
+debug_storageRangeAt = "main"
+debug_getTrieFlushInterval = "main"
+debug_traceBlock = "main"
+debug_traceBlockByHash = "main"
+debug_traceBlockByNumber = "main"
+debug_traceCall = "main"
+debug_traceTransaction = "main"
+
+[server]
+rpc_host = "0.0.0.0"
+rpc_port = 8544
+enable_ws = true
+max_body_size_bytes = 10485760
+max_concurrent_rpcs = 1000
+log_level = "info"
+allow_direct = true
+
+[cache]
+enabled = true
+ttl = "14s"
+
+[redis]
+url = "$REDIS_URL"
+
+[metrics]
+enabled = true
+host = "0.0.0.0"
+port = 9761
+
+[rate_limit]
+use_redis = true
+base_rate = 2000
+base_interval = "60s"
+
+[backend]
+response_timeout_seconds = 120
+max_response_size_bytes = 5242880
+max_retries = 3
+out_of_service_seconds = 600
+max_latency_threshold = "30s"
+max_degraded_latency_threshold = "10s"
+max_error_rate_threshold = 0.3
+
+[backends]
+[backends.main]
+rpc_url = "$RPC_URL"
+ws_url = "$WS_URL"
+max_rps = 100
+max_ws_conns = 100
+consensus_skip_peer_count = true
+consensus_receipts_target = "eth_getBlockReceipts"
+
+[backend_groups]
+[backend_groups.main]
+backends = ["main"]
+consensus_aware = false
+# consensus_aware = true
+consensus_ban_period = "1m"
+consensus_max_update_threshold = "20s"
+consensus_max_block_lag = 16
+# Maximum block range (for eth_getLogs method), no default
+# consensus_max_block_range = 20000
+# Minimum peer count, default 3
+# consensus_min_peer_count = 4

proxyd/proxyd.go

@@ -328,7 +328,7 @@ func Start(config *Config) (*Server, func(), error) {
 
 	if config.Server.RPCPort != 0 {
 		go func() {
-			if err := srv.RPCListenAndServe(config.Server.RPCHost, config.Server.RPCPort); err != nil {
+			if err := srv.RPCListenAndServe(config.Server); err != nil {
 				if errors.Is(err, http.ErrServerClosed) {
 					log.Info("RPC server shut down")
 					return
@@ -348,7 +348,7 @@ func Start(config *Config) (*Server, func(), error) {
 				log.Crit("error starting WS server", "err", err)
 			}
 		}()
-	} else {
+	} else if !config.Server.EnableWS {
 		log.Info("WS server not enabled (ws_port is set to 0)")
 	}
 

proxyd/rewriter.go

@@ -64,7 +64,9 @@ func RewriteRequest(rctx RewriteContext, req *RPCReq, res *RPCRes) (RewriteResul
 	switch req.Method {
 	case "eth_getLogs",
 		"eth_newFilter":
-		return rewriteRange(rctx, req, res, 0)
+		// return rewriteRange(rctx, req, res, 0)
+		// Tornado: disable range check unti the UI is fixed
+		return RewriteNone, nil
 	case "debug_getRawReceipts", "consensus_getReceipts":
 		return rewriteParam(rctx, req, res, 0, true, false)
 	case "eth_getBalance",

proxyd/server.go

@@ -200,12 +200,23 @@ func NewServer(
 	}, nil
 }
 
-func (s *Server) RPCListenAndServe(host string, port int) error {
+func (s *Server) RPCListenAndServe(serverConfig ServerConfig) error {
+	host := serverConfig.RPCHost
+	port := serverConfig.RPCPort
+	enableWS := serverConfig.EnableWS
+
+	var handleRpc ReqHandle = s.GetRPCHandle(serverConfig)
+
 	s.srvMu.Lock()
 	hdlr := mux.NewRouter()
 	hdlr.HandleFunc("/healthz", s.HandleHealthz).Methods("GET")
-	hdlr.HandleFunc("/", s.HandleRPC).Methods("POST")
+	hdlr.HandleFunc("/", handleRpc).Methods("POST")
-	hdlr.HandleFunc("/{authorization}", s.HandleRPC).Methods("POST")
+	hdlr.HandleFunc("/{authorization}", handleRpc).Methods("POST")
+	if enableWS {
+		var handleWS ReqHandle = s.GetWSHandle(true)
+		hdlr.HandleFunc("/", handleWS)
+		hdlr.HandleFunc("/{authorization}", handleWS)
+	}
 	c := cors.New(cors.Options{
 		AllowedOrigins: []string{"*"},
 	})
@@ -215,15 +226,20 @@ func (s *Server) RPCListenAndServe(host string, port int) error {
 		Addr:    addr,
 	}
 	log.Info("starting HTTP server", "addr", addr)
+	if enableWS {
+		log.Info("starting WS server", "addr", addr)
+	}
 	s.srvMu.Unlock()
 	return s.rpcServer.ListenAndServe()
 }
 
 func (s *Server) WSListenAndServe(host string, port int) error {
 	s.srvMu.Lock()
+	var handleWS ReqHandle = s.GetWSHandle(false)
+
 	hdlr := mux.NewRouter()
-	hdlr.HandleFunc("/", s.HandleWS)
+	hdlr.HandleFunc("/", handleWS)
-	hdlr.HandleFunc("/{authorization}", s.HandleWS)
+	hdlr.HandleFunc("/{authorization}", handleWS)
 	c := cors.New(cors.Options{
 		AllowedOrigins: []string{"*"},
 	})
@@ -255,7 +271,15 @@ func (s *Server) HandleHealthz(w http.ResponseWriter, r *http.Request) {
 	_, _ = w.Write([]byte("OK"))
 }
 
-func (s *Server) HandleRPC(w http.ResponseWriter, r *http.Request) {
+type ReqHandle func(http.ResponseWriter, *http.Request)
+
+func (s *Server) GetRPCHandle(serverConfig ServerConfig) ReqHandle {
+	return func(w http.ResponseWriter, r *http.Request) {
+		s.HandleRPC(w, r, serverConfig)
+	}
+}
+
+func (s *Server) HandleRPC(w http.ResponseWriter, r *http.Request, serverConfig ServerConfig) {
 	ctx := s.populateContext(w, r)
 	if ctx == nil {
 		return
@@ -272,9 +296,14 @@ func (s *Server) HandleRPC(w http.ResponseWriter, r *http.Request) {
 	isUnlimitedUserAgent := s.isUnlimitedUserAgent(userAgent)
 
 	if xff == "" {
+		// Just use remote addr from socket when the request doesn't have x_forwarded_for header
+		if (serverConfig.AllowDirect) {
+			xff = r.RemoteAddr
+		} else {
 			writeRPCError(ctx, w, nil, ErrInvalidRequest("request does not include a remote IP"))
 			return
 		}
+	}
 
 	isLimited := func(method string) bool {
 		isGloballyLimitedMethod := s.isGlobalLimit(method)
@@ -354,7 +383,7 @@ func (s *Server) HandleRPC(w http.ResponseWriter, r *http.Request) {
 			return
 		}
 
-		batchRes, batchContainsCached, servedBy, err := s.handleBatchRPC(ctx, reqs, isLimited, true)
+		batchRes, batchContainsCached, servedBy, err := s.handleBatchRPC(xff, r, ctx, reqs, isLimited, true)
 		if err == context.DeadlineExceeded {
 			writeRPCError(ctx, w, nil, ErrGatewayTimeout)
 			return
@@ -377,7 +406,7 @@ func (s *Server) HandleRPC(w http.ResponseWriter, r *http.Request) {
 	}
 
 	rawBody := json.RawMessage(body)
-	backendRes, cached, servedBy, err := s.handleBatchRPC(ctx, []json.RawMessage{rawBody}, isLimited, false)
+	backendRes, cached, servedBy, err := s.handleBatchRPC(xff, r, ctx, []json.RawMessage{rawBody}, isLimited, false)
 	if err != nil {
 		if errors.Is(err, ErrConsensusGetReceiptsCantBeBatched) ||
 			errors.Is(err, ErrConsensusGetReceiptsInvalidTarget) {
@@ -394,7 +423,7 @@ func (s *Server) HandleRPC(w http.ResponseWriter, r *http.Request) {
 	writeRPCRes(ctx, w, backendRes[0])
 }
 
-func (s *Server) handleBatchRPC(ctx context.Context, reqs []json.RawMessage, isLimited limiterFunc, isBatch bool) ([]*RPCRes, bool, string, error) {
+func (s *Server) handleBatchRPC(xff string, r *http.Request, ctx context.Context, reqs []json.RawMessage, isLimited limiterFunc, isBatch bool) ([]*RPCRes, bool, string, error) {
 	// A request set is transformed into groups of batches.
 	// Each batch group maps to a forwarded JSON-RPC batch request (subject to maxUpstreamBatchSize constraints)
 	// A groupID is used to decouple Requests that have duplicate ID so they're not part of the same batch that's
@@ -406,6 +435,10 @@ func (s *Server) handleBatchRPC(ctx context.Context, reqs []json.RawMessage, isL
 		backendGroup string
 	}
 
+	// Retrieve info from header
+	origin := r.Header.Get("Origin")
+	userAgent := r.Header.Get("User-Agent")
+
 	responses := make([]*RPCRes, len(reqs))
 	batches := make(map[batchGroup][]batchElem)
 	ids := make(map[string]int, len(reqs))
@@ -418,6 +451,15 @@ func (s *Server) handleBatchRPC(ctx context.Context, reqs []json.RawMessage, isL
 			continue
 		}
 
+		log.Debug(
+			"received RPC method",
+			"req_id", GetReqID(ctx),
+			"method", parsedReq.Method,
+			"user_agent", userAgent,
+			"origin", origin,
+			"remote_ip", xff,
+		)
+
 		// Simple health check
 		if len(reqs) == 1 && parsedReq.Method == proxydHealthzMethod {
 			res := &RPCRes{
@@ -449,6 +491,9 @@ func (s *Server) handleBatchRPC(ctx context.Context, reqs []json.RawMessage, isL
 				"source", "rpc",
 				"req_id", GetReqID(ctx),
 				"method", parsedReq.Method,
+				"user_agent", userAgent,
+				"origin", origin,
+				"remote_ip", xff,
 			)
 			RecordRPCError(ctx, BackendProxyd, MethodUnknown, ErrMethodNotWhitelisted)
 			responses[i] = NewRPCErrorRes(parsedReq.ID, ErrMethodNotWhitelisted)
@@ -475,6 +520,9 @@ func (s *Server) handleBatchRPC(ctx context.Context, reqs []json.RawMessage, isL
 				"source", "rpc",
 				"req_id", GetReqID(ctx),
 				"method", parsedReq.Method,
+				"user_agent", userAgent,
+				"origin", origin,
+				"remote_ip", xff,
 			)
 			RecordRPCError(ctx, BackendProxyd, parsedReq.Method, ErrOverRateLimit)
 			responses[i] = NewRPCErrorRes(parsedReq.ID, ErrOverRateLimit)
@@ -579,12 +627,31 @@ func (s *Server) handleBatchRPC(ctx context.Context, reqs []json.RawMessage, isL
 	return responses, cached, servedByString, nil
 }
 
-func (s *Server) HandleWS(w http.ResponseWriter, r *http.Request) {
+func (s *Server) GetWSHandle(fromRpc bool) ReqHandle {
+	return func(w http.ResponseWriter, r *http.Request) {
+		s.HandleWS(w, r, fromRpc)
+	}
+}
+
+func (s *Server) HandleWS(w http.ResponseWriter, r *http.Request, fromRpc bool) {
 	ctx := s.populateContext(w, r)
 	if ctx == nil {
 		return
 	}
 
+	// Handle upgrade header request
+	upgrade := false
+	for _, header := range r.Header["Upgrade"] {
+		if header == "websocket" {
+			upgrade = true
+			break
+		}
+	}
+	// Filter out non websocket requests
+	if fromRpc && !upgrade {
+		return
+	}
+
 	log.Info("received WS connection", "req_id", GetReqID(ctx))
 
 	clientConn, err := s.upgrader.Upgrade(w, r, nil)