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util.go
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util.go
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package server
import (
"net"
"net/http"
"time"
"github.com/cerc-io/laconicd/server/config"
"github.com/gorilla/mux"
"github.com/improbable-eng/grpc-web/go/grpcweb"
"github.com/spf13/cobra"
"golang.org/x/net/netutil"
sdkserver "github.com/cosmos/cosmos-sdk/server"
"github.com/cosmos/cosmos-sdk/server/types"
"github.com/cosmos/cosmos-sdk/version"
tmcmd "github.com/tendermint/tendermint/cmd/tendermint/commands"
tmlog "github.com/tendermint/tendermint/libs/log"
rpcclient "github.com/tendermint/tendermint/rpc/jsonrpc/client"
)
// AddCommands adds server commands
func AddCommands(
rootCmd *cobra.Command,
defaultNodeHome string,
appCreator types.AppCreator,
appExport types.AppExporter,
addStartFlags types.ModuleInitFlags,
) {
tendermintCmd := &cobra.Command{
Use: "tendermint",
Short: "Tendermint subcommands",
}
tendermintCmd.AddCommand(
sdkserver.ShowNodeIDCmd(),
sdkserver.ShowValidatorCmd(),
sdkserver.ShowAddressCmd(),
sdkserver.VersionCmd(),
tmcmd.ResetAllCmd,
tmcmd.ResetStateCmd,
)
startCmd := StartCmd(appCreator, defaultNodeHome)
addStartFlags(startCmd)
rootCmd.AddCommand(
startCmd,
tendermintCmd,
sdkserver.ExportCmd(appExport, defaultNodeHome),
version.NewVersionCommand(),
sdkserver.NewRollbackCmd(appCreator, defaultNodeHome),
// custom tx indexer command
NewIndexTxCmd(),
)
}
func ConnectTmWS(tmRPCAddr, tmEndpoint string, logger tmlog.Logger) *rpcclient.WSClient {
tmWsClient, err := rpcclient.NewWS(tmRPCAddr, tmEndpoint,
rpcclient.MaxReconnectAttempts(256),
rpcclient.ReadWait(120*time.Second),
rpcclient.WriteWait(120*time.Second),
rpcclient.PingPeriod(50*time.Second),
rpcclient.OnReconnect(func() {
logger.Debug("EVM RPC reconnects to Tendermint WS", "address", tmRPCAddr+tmEndpoint)
}),
)
if err != nil {
logger.Error(
"Tendermint WS client could not be created",
"address", tmRPCAddr+tmEndpoint,
"error", err,
)
} else if err := tmWsClient.OnStart(); err != nil {
logger.Error(
"Tendermint WS client could not start",
"address", tmRPCAddr+tmEndpoint,
"error", err,
)
}
return tmWsClient
}
func MountGRPCWebServices(
router *mux.Router,
grpcWeb *grpcweb.WrappedGrpcServer,
grpcResources []string,
logger tmlog.Logger,
) {
for _, res := range grpcResources {
logger.Info("[GRPC Web] HTTP POST mounted", "resource", res)
s := router.Methods("POST").Subrouter()
s.HandleFunc(res, func(resp http.ResponseWriter, req *http.Request) {
if grpcWeb.IsGrpcWebSocketRequest(req) {
grpcWeb.HandleGrpcWebsocketRequest(resp, req)
return
}
if grpcWeb.IsGrpcWebRequest(req) {
grpcWeb.HandleGrpcWebRequest(resp, req)
return
}
})
}
}
// Listen starts a net.Listener on the tcp network on the given address.
// If there is a specified MaxOpenConnections in the config, it will also set the limitListener.
func Listen(addr string, config *config.Config) (net.Listener, error) {
if addr == "" {
addr = ":http"
}
ln, err := net.Listen("tcp", addr)
if err != nil {
return nil, err
}
if config.JSONRPC.MaxOpenConnections > 0 {
ln = netutil.LimitListener(ln, config.JSONRPC.MaxOpenConnections)
}
return ln, err
}