Add support for the RCW daemon

core/copy.go

@@ -1,7 +1,6 @@
 package core
 
 import (
-	"bufio"
 	"fmt"
 	"os"
 	"strings"
@@ -59,14 +58,11 @@ func CopyArgument(targetLocation string, field int, passphrase []byte) {
 
 // ClipClearArgument reads the assigned clipboard contents from stdin and passes them to clipClearProcess.
 func ClipClearArgument() {
-	// read previous clipboard contents from stdin
-	clipScanner := bufio.NewScanner(os.Stdin)
-	if clipScanner.Scan() {
-		assignedContents := clipScanner.Text()
-		clipClearProcess(assignedContents)
-	} else {
+	assignedContents := readFromStdin()
+	if assignedContents == "" {
 		os.Exit(0) // use os.Exit instead of core.Exit, as this function runs out of a background subprocess that is invisible to the user (will never appear in GUI/TUI environment)
 	}
+	clipClearProcess(assignedContents)
 }
 
 // GenTOTP generates a TOTP token from a secret (supports standard and Steam TOTP).

core/launchClipClearProcessCLIGeneric.go

@@ -10,8 +10,7 @@ import (
 // LaunchClipClearProcess launches the timed clipboard clearing process.
 // For non-interactive CLI implementations, an entirely separate process is created for this purpose.
 func LaunchClipClearProcess(copySubject string) {
-	executableName := os.Args[0]
-	cmd := exec.Command(executableName, "clipclear")
+	cmd := exec.Command(os.Args[0], "clipclear")
 	writeToStdin(cmd, copySubject)
 	err := cmd.Start()
 	if err != nil {

core/launchClipClearProcessCLIUNIX.go

@@ -11,8 +11,7 @@ import (
 // LaunchClipClearProcess launches the timed clipboard clearing process.
 // For non-interactive CLI implementations, an entirely separate process is created for this purpose.
 func LaunchClipClearProcess(copySubject string, isWayland bool) {
-	executableName := os.Args[0]
-	cmd := exec.Command(executableName, "clipclear", strconv.FormatBool(isWayland))
+	cmd := exec.Command(os.Args[0], "clipclear", strconv.FormatBool(isWayland))
 	writeToStdin(cmd, copySubject)
 	err := cmd.Start()
 	if err != nil {

core/rcw.go

@@ -2,8 +2,10 @@ package core
 
 import (
 	"os"
+	"os/exec"
 	"strings"
 
+	"github.com/rwinkhart/rcw/daemon"
 	"github.com/rwinkhart/rcw/wrappers"
 )
 
@@ -25,3 +27,22 @@ func EncryptBytes(decBytes []byte, passphrase []byte) []byte {
 	encBytes := wrappers.Encrypt(decBytes, passphrase)
 	return encBytes
 }
+
+// LaunchRCWDProcess launches an RCW daemon to serve the given passphrase.
+func LaunchRCWDProcess(passphrase string) {
+	cmd := exec.Command(os.Args[0], "startrcwd")
+	writeToStdin(cmd, passphrase)
+	err := cmd.Start()
+	if err != nil {
+		PrintError("Failed to launch RCW daemon - Does this libmutton implementation support the \"startrcwd\" argument?", ErrorOther, true)
+	}
+}
+
+// RCWDArgument reads the passphrase from stdin and serves it via an RCW daemon.
+func RCWDArgument() {
+	passphrase := readFromStdin()
+	if passphrase == "" {
+		os.Exit(0)
+	}
+	daemon.Start(string(passphrase))
+}

core/utilitiesMisc.go

@@ -1,6 +1,7 @@
 package core
 
 import (
+	"bufio"
 	"crypto/rand"
 	"fmt"
 	"io"
@@ -59,6 +60,15 @@ func writeToStdin(cmd *exec.Cmd, input string) {
 	}()
 }
 
+// readFromStdin is a utility function that reads a string from stdin.
+func readFromStdin() string {
+	scanner := bufio.NewScanner(os.Stdin)
+	if scanner.Scan() {
+		return scanner.Text()
+	}
+	return ""
+}
+
 // CreateTempFile creates a temporary file and returns a pointer to it.
 func CreateTempFile() *os.File {
 	tempFile, err := os.CreateTemp("", "*.markdown")