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main.go
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main.go
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package main
import (
"crypto/tls"
"flag"
"io"
"log"
"os"
"path/filepath"
"github.com/calmh/syncthing/protocol"
)
var (
exit bool
cmd string
confDir string
target string
get string
pc protocol.Connection
)
func main() {
log.SetFlags(0)
log.SetOutput(os.Stdout)
flag.StringVar(&cmd, "cmd", "idx", "Command")
flag.StringVar(&confDir, "home", ".", "Certificates directory")
flag.StringVar(&target, "target", "127.0.0.1:22000", "Target node")
flag.StringVar(&get, "get", "", "Get file")
flag.BoolVar(&exit, "exit", false, "Exit after command")
flag.Parse()
connect(target)
select {}
}
func connect(target string) {
cert, err := loadCert(confDir)
if err != nil {
log.Fatal(err)
}
myID := string(certID(cert.Certificate[0]))
tlsCfg := &tls.Config{
Certificates: []tls.Certificate{cert},
NextProtos: []string{"bep/1.0"},
ServerName: myID,
ClientAuth: tls.RequestClientCert,
SessionTicketsDisabled: true,
InsecureSkipVerify: true,
MinVersion: tls.VersionTLS12,
}
conn, err := tls.Dial("tcp", target, tlsCfg)
if err != nil {
log.Fatal(err)
}
remoteID := certID(conn.ConnectionState().PeerCertificates[0].Raw)
pc = protocol.NewConnection(remoteID, conn, conn, Model{}, nil)
select {}
}
type Model struct {
}
func prtIndex(files []protocol.FileInfo) {
for _, f := range files {
log.Printf("%q (v:%d mod:%d flags:0%o nblocks:%d)", f.Name, f.Version, f.Modified, f.Flags, len(f.Blocks))
for _, b := range f.Blocks {
log.Printf(" %6d %x", b.Size, b.Hash)
}
}
}
func (m Model) Index(nodeID string, repo string, files []protocol.FileInfo) {
log.Printf("Received index for repo %q", repo)
if cmd == "idx" {
prtIndex(files)
if get != "" {
for _, f := range files {
if f.Name == get {
go getFile(f)
break
}
}
} else if exit {
os.Exit(0)
}
}
}
func getFile(f protocol.FileInfo) {
fn := filepath.Base(f.Name)
fd, err := os.Create(fn)
if err != nil {
log.Fatal(err)
}
var offset int64
for _, b := range f.Blocks {
log.Printf("Request %q %d - %d", f.Name, offset, offset+int64(b.Size))
bs, err := pc.Request("default", f.Name, offset, int(b.Size))
log.Printf(" - got %d bytes", len(bs))
if err != nil {
log.Fatal(err)
}
offset += int64(b.Size)
fd.Write(bs)
}
fd.Close()
}
func (m Model) IndexUpdate(nodeID string, repo string, files []protocol.FileInfo) {
log.Printf("Received index update for repo %q", repo)
if cmd == "idx" {
prtIndex(files)
if exit {
os.Exit(0)
}
}
}
func (m Model) Request(nodeID, repo string, name string, offset int64, size int) ([]byte, error) {
log.Println("Received request")
return nil, io.EOF
}
func (m Model) Close(nodeID string, err error) {
log.Println("Received close")
}