Fixed terminal output (support escape and control characters)

Signed-off-by: Sebastien Douheret <sebastien.douheret@iot.bzh>

4 files changed, 32 insertions, 26 deletions

diff --git a/lib/xdsserver/apiv1-exec.go b/lib/xdsserver/apiv1-exec.go
index 327c4c5..57ea1f1 100644
--- a/lib/xdsserver/apiv1-exec.go
+++ b/lib/xdsserver/apiv1-exec.go
@@ -152,14 +152,17 @@ func (s *APIService) execCmd(c *gin.Context) {
 
 	// Define callback for input (stdin)
 	execWS.InputEvent = xsapiv1.ExecInEvent
-	execWS.InputCB = func(e *eows.ExecOverWS, stdin string) (string, error) {
+	execWS.InputCB = func(e *eows.ExecOverWS, bStdin []byte) ([]byte, error) {
+
+		stdin := string(bStdin)
+
 		s.Log.Debugf("STDIN <<%v>>", strings.Replace(stdin, "\n", "\\n", -1))
 
 		// Handle Ctrl-D
 		if len(stdin) == 1 && stdin == "\x04" {
 			// Close stdin
 			errMsg := fmt.Errorf("close stdin: %v", stdin)
-			return "", errMsg
+			return []byte{}, errMsg
 		}
 
 		// Set correct path
@@ -172,12 +175,15 @@ func (s *APIService) execCmd(c *gin.Context) {
 			// Translate paths from client to server
 			stdin = (*f).ConvPathCli2Svr(stdin)
 		}
-
-		return stdin, nil
+		return []byte(stdin), nil
 	}
 
 	// Define callback for output (stdout+stderr)
-	execWS.OutputCB = func(e *eows.ExecOverWS, stdout, stderr string) {
+	execWS.OutputCB = func(e *eows.ExecOverWS, bStdout, bStderr []byte) {
+
+		stdout := string(bStdout)
+		stderr := string(bStderr)
+
 		// IO socket can be nil when disconnected
 		so := s.sessions.IOSocketGet(e.Sid)
 		if so == nil {
diff --git a/lib/xdsserver/sdk.go b/lib/xdsserver/sdk.go
index 374fb12..c1bf043 100644
--- a/lib/xdsserver/sdk.go
+++ b/lib/xdsserver/sdk.go
@@ -247,6 +247,7 @@ func (s *CrossSDK) Install(file string, force bool, timeout int, args []string,
 	// Create new instance to execute command and sent output over WS
 	s.installCmd = eows.New(s.scripts[scriptAdd], cmdArgs, sess.IOSocket, sess.ID, cmdID)
 	s.installCmd.Log = s.Log
+	// TODO: enable Term s.installCmd.PtyMode = true
 	s.installCmd.LineTimeSpan = 500 * time.Millisecond.Nanoseconds()
 	if timeout > 0 {
 		s.installCmd.CmdExecTimeout = timeout
@@ -255,7 +256,11 @@ func (s *CrossSDK) Install(file string, force bool, timeout int, args []string,
 	}
 
 	// Define callback for output (stdout+stderr)
-	s.installCmd.OutputCB = func(e *eows.ExecOverWS, stdout, stderr string) {
+	s.installCmd.OutputCB = func(e *eows.ExecOverWS, bStdout, bStderr []byte) {
+
+		stdout := string(bStdout)
+		stderr := string(bStderr)
+
 		// paranoia
 		data := e.UserData
 		sdkID := (*data)["SDKID"].(string)
diff --git a/lib/xdsserver/terminal-ssh.go b/lib/xdsserver/terminal-ssh.go
index 3f4a344..9a9f5fd 100644
--- a/lib/xdsserver/terminal-ssh.go
+++ b/lib/xdsserver/terminal-ssh.go
@@ -128,26 +128,19 @@ func (t *TermSSH) Open(sock *socketio.Socket, sessID string) (*xsapiv1.TerminalC
 
 	t.sshWS = eows.New(cmd, args, sock, sessID, cmdID)
 	t.sshWS.Log = t.Log
-	t.sshWS.OutSplit = eows.SplitChar
-	t.sshWS.PtsMode = true
+	t.sshWS.PtyMode = true
 
 	// Define callback for input (stdin)
 	t.sshWS.InputEvent = xsapiv1.TerminalInEvent
-	t.sshWS.InputCB = func(e *eows.ExecOverWS, stdin string) (string, error) {
-		t.Log.Debugf("STDIN <<%v>>", strings.Replace(stdin, "\n", "\\n", -1))
-
-		// Handle Ctrl-D
-		if len(stdin) == 1 && stdin == "\x04" {
-			// Close stdin
-			errMsg := fmt.Errorf("close stdin: %v", stdin)
-			return "", errMsg
+	t.sshWS.InputCB = func(e *eows.ExecOverWS, stdin []byte) ([]byte, error) {
+		if t.LogLevelSilly {
+			t.Log.Debugf("STDIN <<%v>> %s", stdin, string(stdin))
 		}
-
 		return stdin, nil
 	}
 
 	// Define callback for output (stdout+stderr)
-	t.sshWS.OutputCB = func(e *eows.ExecOverWS, stdout, stderr string) {
+	t.sshWS.OutputCB = func(e *eows.ExecOverWS, stdout, stderr []byte) {
 		// IO socket can be nil when disconnected
 		so := t.sessions.IOSocketGet(e.Sid)
 		if so == nil {
@@ -159,12 +152,14 @@ func (t *TermSSH) Open(sock *socketio.Socket, sessID string) (*xsapiv1.TerminalC
 		data := e.UserData
 		termID := (*data)["ID"].(string)
 
-		t.Log.Debugf("%s emitted - WS sid[4:] %s - id:%s - termID:%s", xsapiv1.TerminalOutEvent, e.Sid[4:], e.CmdID, termID)
-		if stdout != "" {
-			t.Log.Debugf("STDOUT <<%v>>", strings.Replace(stdout, "\n", "\\n", -1))
-		}
-		if stderr != "" {
-			t.Log.Debugf("STDERR <<%v>>", strings.Replace(stderr, "\n", "\\n", -1))
+		if t.LogLevelSilly {
+			t.Log.Debugf("%s emitted - WS sid[4:] %s - id:%s - termID:%s", xsapiv1.TerminalOutEvent, e.Sid[4:], e.CmdID, termID)
+			if len(stdout) > 0 {
+				t.Log.Debugf("STDOUT <<%v>>", strings.Replace(string(stdout), "\n", "\\n", -1))
+			}
+			if len(stderr) > 0 {
+				t.Log.Debugf("STDERR <<%v>>", strings.Replace(string(stderr), "\n", "\\n", -1))
+			}
 		}
 
 		// FIXME replace by .BroadcastTo a room
diff --git a/lib/xsapiv1/targets.go b/lib/xsapiv1/targets.go
index 3f2b3c4..793724a 100644
--- a/lib/xsapiv1/targets.go
+++ b/lib/xsapiv1/targets.go
@@ -99,8 +99,8 @@ type (
 	TerminalOutMsg struct {
 		TermID    string `json:"termID"`
 		Timestamp string `json:"timestamp"`
-		Stdout    string `json:"stdout"`
-		Stderr    string `json:"stderr"`
+		Stdout    []byte `json:"stdout"`
+		Stderr    []byte `json:"stderr"`
 	}
 
 	// TerminalExitMsg Message sent on terminal/console exit