Adding Tor autostart

app/app.go

@@ -8,7 +8,8 @@ import (
 
 // Application is a facade over a cwtchPeer that provides some wrapping logic.
 type Application struct {
-	Peer peer.CwtchPeerInterface
+	Peer       peer.CwtchPeerInterface
+	TorManager *tor.Manager
 }
 
 // NewProfile creates a new cwtchPeer with a given name.
@@ -42,10 +43,11 @@ func (app *Application) SetProfile(filename string, password string) error {
 	app.Peer = profile
 	if err == nil {
 
-		_, err := tor.NewTorManager(9050, 9051)
+		tm, err := tor.NewTorManager(9050, 9051)
 		if err != nil {
 			return err
 		}
+		app.TorManager = tm
 
 		go func() {
 			err := app.Peer.Listen()

app/cli/main.go

@@ -10,6 +10,7 @@ import (
 
 	"bytes"
 	"golang.org/x/crypto/ssh/terminal"
+	"os"
 	"syscall"
 )
 
@@ -428,7 +429,16 @@ func main() {
 			}
 		}
 		if profilefile != "" {
-			app.Peer.Save(profilefile)
+			if app.Peer != nil {
+				app.Peer.Save(profilefile)
+			}
 		}
 	}
+
+	if app.TorManager != nil {
+		fmt.Println("Shutting down Tor process...")
+		app.TorManager.Shutdown()
+	}
+	os.Exit(0)
+
 }

connectivity/tor/tormanager.go

@@ -4,9 +4,14 @@ import (
 	"errors"
 	"fmt"
 	"github.com/yawning/bulb"
+	"log"
 	"net"
 	"net/http"
 	"net/url"
+	"os"
+	"os/exec"
+	"os/user"
+	"path"
 	"strings"
 	"time"
 )
@@ -15,6 +20,7 @@ import (
 type Manager struct {
 	socksPort   int
 	controlPort int
+	process     *exec.Cmd
 }
 
 // NewTorManager Instantiates a new connection manager, returns non-nil error if it fails to connect to a tor daemon on the given ports.
@@ -23,6 +29,39 @@ func NewTorManager(socksPort int, controlPort int) (*Manager, error) {
 	torManager.socksPort = socksPort
 	torManager.controlPort = controlPort
 	err := torManager.TestConnection()
+
+	if err != nil {
+
+		usr, err := user.Current()
+		if err != nil {
+			return nil, err
+		}
+
+		torrc := path.Join(usr.HomeDir, ".cwtch", "torrc")
+		if _, err := os.Stat(torrc); os.IsNotExist(err) {
+
+			os.MkdirAll(path.Join(usr.HomeDir, ".cwtch"), 0700)
+
+			file, err := os.Create(torrc)
+			if err != nil {
+				return nil, err
+			}
+			fmt.Fprintf(file, "SOCKSPort %d\nControlPort %d\n", socksPort, controlPort)
+			file.Close()
+		}
+
+		cmd := exec.Command("tor", "-f", torrc)
+		err = cmd.Start()
+		if err != nil {
+			return nil, err
+		}
+		fmt.Printf("\nWaiting to connect to Tor Proxy...\n")
+		time.Sleep(time.Second * 5)
+		torManager.process = cmd
+		err = torManager.TestConnection()
+		return torManager, err
+	}
+
 	return torManager, err
 }
 
@@ -35,6 +74,15 @@ const (
 	proxyStatusTimeout
 )
 
+// Shutdown kills the managed Tor Process
+func (tm *Manager) Shutdown() {
+	if tm.process != nil {
+		if err := tm.process.Process.Kill(); err != nil {
+			log.Fatal("failed to kill process: ", err)
+		}
+	}
+}
+
 // Detect whether a proxy is connectable and is a Tor proxy
 func checkTorProxy(proxyAddress string) proxyStatus {
 	// A trick to do this without making an outward connection is,