/
main.go
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/
main.go
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// Copyright 2023 Blink Labs Software
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"crypto/tls"
"flag"
"fmt"
"net"
"os"
ouroboros "github.com/blinklabs-io/gouroboros"
)
type globalFlags struct {
flagset *flag.FlagSet
socket string
address string
useTls bool
ntnProto bool
network string
networkMagic int
}
func newGlobalFlags() *globalFlags {
var name string
if os.Args == nil {
name = "gouroboros"
} else {
name = os.Args[0]
}
f := &globalFlags{
flagset: flag.NewFlagSet(name, flag.ExitOnError),
}
f.flagset.StringVar(
&f.socket,
"socket",
"",
"UNIX socket path to connect to",
)
f.flagset.StringVar(
&f.address,
"address",
"",
"TCP address to connect to in address:port format",
)
f.flagset.BoolVar(&f.useTls, "tls", false, "enable TLS")
f.flagset.BoolVar(
&f.ntnProto,
"ntn",
false,
"use node-to-node protocol (defaults to node-to-client)",
)
f.flagset.StringVar(
&f.network,
"network",
"preview",
"specifies network that node is participating in",
)
f.flagset.IntVar(
&f.networkMagic,
"network-magic",
0,
"specifies network magic value. this overrides the -network option",
)
return f
}
func main() {
if os.Args == nil {
fmt.Printf("failed parsing command line\n")
os.Exit(1)
}
f := newGlobalFlags()
err := f.flagset.Parse(os.Args[1:])
if err != nil {
fmt.Printf("failed to parse command args: %s\n", err)
os.Exit(1)
}
if f.networkMagic == 0 {
network := ouroboros.NetworkByName(f.network)
if network == ouroboros.NetworkInvalid {
fmt.Printf("Invalid network specified: %s\n", f.network)
os.Exit(1)
}
f.networkMagic = int(network.NetworkMagic)
}
subcommands := map[string]func(*globalFlags){
"chain-sync": testChainSync,
"local-tx-submission": testLocalTxSubmission,
"server": testServer,
"query": testQuery,
"mem-usage": testMemUsage,
}
if len(f.flagset.Args()) == 0 {
fmt.Printf("\n")
fmt.Printf("Usage of gouroboros:\n")
fmt.Printf("\n")
fmt.Printf("Commands:\n")
for k := range subcommands {
fmt.Printf(" %s\n", k)
}
fmt.Printf("\n")
fmt.Printf("Global flags:\n")
f.flagset.PrintDefaults()
os.Exit(1)
}
fn, ok := subcommands[f.flagset.Arg(0)]
if !ok {
fmt.Printf("Unknown subcommand: %s\n", f.flagset.Arg(0))
os.Exit(1)
}
fn(f)
}
func createClientConnection(f *globalFlags) net.Conn {
var err error
var conn net.Conn
var dialProto string
var dialAddress string
if f.socket != "" {
dialProto = "unix"
dialAddress = f.socket
} else if f.address != "" {
dialProto = "tcp"
dialAddress = f.address
} else {
fmt.Printf("You must specify one of -socket or -address\n\n")
flag.PrintDefaults()
os.Exit(1)
}
if f.useTls {
conn, err = tls.Dial(dialProto, dialAddress, nil)
} else {
conn, err = net.Dial(dialProto, dialAddress)
}
if err != nil {
fmt.Printf("Connection failed: %s\n", err)
os.Exit(1)
}
return conn
}