make everything work again

cmd/helloserver/main.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"net/http"
+)
+
+var (
+	port = flag.String("port", "9090", "HTTP port to listen on")
+)
+
+func main() {
+	flag.Parse()
+	http.ListenAndServe(":"+*port, http.HandlerFunc(handle))
+}
+
+func handle(w http.ResponseWriter, r *http.Request) {
+	fmt.Fprintln(w, "Hello garukun, it's me xena. Hire me and I can make something like this for vungle.")
+}

main.go

@@ -31,7 +31,7 @@ func main() {
 	flagenv.Parse()
 	rand.Seed(time.Now().Unix())
 
-	s, err := server.New(&server.ServerConfig{
+	s, err := server.New(server.Config{
 		ControlHost:       *controlHost,
 		ControlKeyFile:    *controlKeyFile,
 		RethinkDBHost:     *rethinkDBHost,

server/server.go

@@ -1,28 +1,26 @@
 package server
 
 import (
+	"crypto/rsa"
 	"crypto/x509"
 	"encoding/pem"
 	"errors"
-	"fmt"
 	"io/ioutil"
 	"log"
-	"math/rand"
 	"net"
 	"net/http"
 	"net/rpc"
 	"os"
 	"path/filepath"
-	"strconv"
 	"time"
 
 	"git.xeserv.us/xena/route/database"
 	"git.xeserv.us/xena/route/lib/elfs"
 	"git.xeserv.us/xena/route/routerpc"
+	"git.xeserv.us/xena/route/utils"
 	"github.com/Xe/uuid"
 	"github.com/Yawning/bulb"
 	"github.com/koding/tunnel"
-	"github.com/sycamoreone/orc/tor"
 )
 
 // RPC constants
@@ -32,13 +30,10 @@ const (
 
 // Server is the main server type
 type Server struct {
-	cfg *ServerConfig
+	cfg *Config
 
-	db *database.DB
-
-	torCon         *bulb.Conn
-	torCmd         *tor.Cmd
-	torControlPath string
+	db  *database.DB
+	tor *Tor
 
 	rpcS    *rpc.Server
 	rpcAddr string
@@ -46,8 +41,8 @@ type Server struct {
 	ts *tunnel.Server
 }
 
-// ServerConfig configures Server
-type ServerConfig struct {
+// Config configures Server
+type Config struct {
 	ControlHost, ControlKeyFile                string
 	RethinkDBHost, RethinkDBDatabase           string
 	TorDataDir, TorHashedPassword, TorPassword string
@@ -55,7 +50,7 @@ type ServerConfig struct {
 }
 
 // New creates a new Server
-func New(cfg *ServerConfig) (*Server, error) {
+func New(cfg Config) (*Server, error) {
 	db, err := database.New(cfg.RethinkDBHost, cfg.RethinkDBDatabase)
 	if err != nil {
 		return nil, err
@@ -66,36 +61,12 @@ func New(cfg *ServerConfig) (*Server, error) {
 		return nil, err
 	}
 
-	torControlPath := filepath.Join(cfg.TorDataDir, fmt.Sprintf("%d.sock", rand.Int63()))
-
-	tc := tor.NewConfig()
-	tc.Set("DataDirectory", cfg.TorDataDir)
-	tc.Set("HashedControlPassword", cfg.TorHashedPassword)
-	tc.Set("SocksPort", "0")
-	cp := rand.Intn(64512) // 64k - 1k
-	tc.Set("ControlPort", cp)
-
-	tc.Timeout = 30 * time.Second
-	log.Println(tc.ToCmdLineFormat())
-
-	tcmd, err := tor.NewCmd(tc)
-	if err != nil {
-		return nil, err
-	}
-
-	err = tcmd.Start()
-	if err != nil {
-		return nil, err
-	}
-
-	time.Sleep(5 * time.Second)
-
-	bc, err := bulb.Dial("tcp", "127.0.0.1:"+strconv.Itoa(cp))
-	if err != nil {
-		return nil, err
-	}
-
-	err = bc.Authenticate(cfg.TorPassword)
+	t, err := StartTor(TorConfig{
+		DataDir:               cfg.TorDataDir,
+		HashedControlPassword: cfg.TorHashedPassword,
+		ClearPassword:         cfg.TorPassword,
+		Timeout:               30 * time.Second,
+	})
 	if err != nil {
 		return nil, err
 	}
@@ -111,20 +82,12 @@ func New(cfg *ServerConfig) (*Server, error) {
 		return nil, err
 	}
 
-	var block *pem.Block
-
-	block, _ = pem.Decode([]byte(data))
-	pKey, err := x509.ParsePKCS1PrivateKey(block.Bytes)
+	pKey, err := utils.PemToRSAPrivateKey(data)
 	if err != nil {
 		return nil, err
 	}
 
-	_, err = bc.AddOnion([]bulb.OnionPortSpec{
-		bulb.OnionPortSpec{
-			VirtPort: RPCPort,
-			Target:   l.Addr().String(),
-		},
-	}, pKey, false)
+	_, err = t.AddOnion(pKey, RPCPort, l.Addr().String())
 	if err != nil {
 		return nil, err
 	}
@@ -137,13 +100,10 @@ func New(cfg *ServerConfig) (*Server, error) {
 	}
 
 	s := &Server{
-		cfg: cfg,
+		cfg: &cfg,
 
-		db: db,
-
-		torCon:         bc,
-		torCmd:         tcmd,
-		torControlPath: torControlPath,
+		db:  db,
+		tor: t,
 
 		rpcS:    rpcs,
 		rpcAddr: l.Addr().String(),
@@ -189,11 +149,7 @@ func (s *Server) restore() error {
 			return err
 		}
 
-		ports := []bulb.OnionPortSpec{
-			genPortSpec(80, "127.0.0.1:"+s.cfg.WebPort),
-		}
-
-		_, err = s.torCon.AddOnion(ports, pKey, false)
+		_, err = s.tor.AddOnion(pKey, 80, "127.0.0.1:"+s.cfg.WebPort)
 		if err != nil {
 			return err
 		}
@@ -219,6 +175,7 @@ type RPCServer struct {
 	*Server
 }
 
+// AddHost adds a host to the server.
 func (rs *RPCServer) AddHost(req routerpc.AddHostRequest, resp *routerpc.AddHostResponse) error {
 	if req.APIKey != "hunter2" {
 		return errors.New("invalid api key")
@@ -226,12 +183,13 @@ func (rs *RPCServer) AddHost(req routerpc.AddHostRequest, resp *routerpc.AddHost
 
 	token := uuid.New()
 
-	oi, err := rs.torCon.AddOnion([]bulb.OnionPortSpec{
-		bulb.OnionPortSpec{
-			VirtPort: 80,
-			Target:   "127.0.0.1:" + rs.cfg.WebPort,
-		},
-	}, req.PrivKey, false)
+	var pKey *rsa.PrivateKey
+
+	if kk, ok := req.PrivKey.(*rsa.PrivateKey); ok {
+		pKey = kk
+	}
+
+	oi, err := rs.tor.AddOnion(pKey, 80, "127.0.0.1:"+rs.cfg.WebPort)
 	if err != nil {
 		return err
 	}
@@ -248,12 +206,6 @@ func (rs *RPCServer) AddHost(req routerpc.AddHostRequest, resp *routerpc.AddHost
 	}
 	rs.Server.ts.AddHost(resp.OnionHostname, token)
 
-	if oi.PrivateKey != nil {
-		resp.PrivKey = oi.PrivateKey
-	} else {
-		resp.PrivKey = req.PrivKey
-	}
-
 	err = rs.db.SaveRoute(resp)
 	if err != nil {
 		return err

server/tor.go

@@ -0,0 +1,80 @@
+package server
+
+import (
+	"crypto/rsa"
+	"log"
+	"math/rand"
+	"strconv"
+	"time"
+
+	"github.com/Yawning/bulb"
+	"github.com/sycamoreone/orc/tor"
+)
+
+// TorConfig is a wrapper struct for tor configuration.
+type TorConfig struct {
+	DataDir               string
+	HashedControlPassword string
+	ClearPassword         string
+	Timeout               time.Duration
+}
+
+// StartTor starts a new instance of tor or doesn't with the reason why.
+func StartTor(cfg TorConfig) (*Tor, error) {
+	tc := tor.NewConfig()
+	tc.Set("DataDirectory", cfg.DataDir)
+	tc.Set("HashedControlPassword", cfg.HashedControlPassword)
+	tc.Set("SocksPort", "0")
+	cp := rand.Intn(64512)
+	tc.Set("ControlPort", cp)
+	tc.Timeout = cfg.Timeout
+
+	tcmd, err := tor.NewCmd(tc)
+	if err != nil {
+		return nil, err
+	}
+
+	err = tcmd.Start()
+	if err != nil {
+		return nil, err
+	}
+
+	log.Println("tor started, sleeping for a few seconds for it to settle...")
+	time.Sleep(5 * time.Second)
+
+	bc, err := bulb.Dial("tcp", "127.0.0.1:"+strconv.Itoa(cp))
+	if err != nil {
+		return nil, err
+	}
+
+	err = bc.Authenticate(cfg.ClearPassword)
+	if err != nil {
+		return nil, err
+	}
+
+	t := &Tor{
+		tc:   tc,
+		tcmd: tcmd,
+		bc:   bc,
+	}
+
+	return t, nil
+}
+
+// Tor is a higher level wrapper to a child tor process
+type Tor struct {
+	tc   *tor.Config
+	tcmd *tor.Cmd
+	bc   *bulb.Conn
+}
+
+// AddOnion adds an onion service to this machine with the given private key
+// (can be nil for an auto-generated key), virtual onion port and TCP destunation.
+func (t *Tor) AddOnion(pKey *rsa.PrivateKey, virtPort uint16, destination string) (*bulb.OnionInfo, error) {
+	return t.bc.AddOnion([]bulb.OnionPortSpec{
+		{
+			VirtPort: virtPort,
+			Target:   destination,
+		},
+	}, pKey, false)
+}

utils/crypto.go

@@ -0,0 +1,29 @@
+package utils
+
+import (
+	"crypto/rsa"
+	"crypto/x509"
+	"encoding/pem"
+)
+
+// RSAPrivateKeyToPem takes an RSA private key and formats it in PEM-encoded bytes.
+func RSAPrivateKeyToPem(k *rsa.PrivateKey) []byte {
+	pemblock := &pem.Block{
+		Type:  "RSA PRIVATE KEY",
+		Bytes: x509.MarshalPKCS1PrivateKey(k),
+	}
+	return pem.EncodeToMemory(pemblock)
+}
+
+// PemToRSAPrivateKey takes a PEM-encoded rsa private key and returns it.
+func PemToRSAPrivateKey(data []byte) (*rsa.PrivateKey, error) {
+	var block *pem.Block
+
+	block, _ = pem.Decode([]byte(data))
+	pKey, err := x509.ParsePKCS1PrivateKey(block.Bytes)
+	if err != nil {
+		return nil, err
+	}
+
+	return pKey, nil
+}