Implement clipboard support for Windows

src/offline/UNIXcopy.go

@@ -1,8 +1,9 @@
+//go:build !windows && !darwin
+
 package offline
 
 import (
 	"fmt"
-	"io"
 	"os"
 	"os/exec"
 	"strings"
@@ -10,16 +11,14 @@ import (
 )
 
 // TODO Handle cmd.Run errors, especially those due to missing clipboard utilities
+// TODO Handle index out of range errors when copying fields that do not exist
 
 // CopyField copies a field from an entry to the clipboard
-// TODO Implement support for Windows via powershell, MacOS via pbcopy, Termux via termux-clipboard-set, X11 via xclip
-// TODO Monitor Go support for Haiku, if possible implement support via clipboard command
+// TODO Implement support for MacOS via pbcopy, Termux via termux-clipboard-set, X11 via xclip
 func CopyField(targetLocation string, field uint8, executableName string) {
 	if isFile, _ := TargetIsFile(targetLocation, true); isFile {
 		copySubject := DecryptGPG(targetLocation)[field]
 
-		//hash := getSha512Sum(copySubject)
-
 		cmd := exec.Command("wl-copy")
 		writeToStdin(cmd, copySubject)
 		cmd.Run()
@@ -27,7 +26,6 @@ func CopyField(targetLocation string, field uint8, executableName string) {
 		// TODO Unpair from mutn, as this breaks library functionality
 		// TODO Maybe use this method for mutn and strongly encourage other implementations to support a clipclear argument
 		// TODO If an implementation opts out of doing this, this may error out
-		//cmd = exec.Command(executableName, "clipclear", hash)
 		cmd = exec.Command(executableName, "clipclear")
 		writeToStdin(cmd, copySubject)
 		cmd.Start()
@@ -39,7 +37,7 @@ func CopyField(targetLocation string, field uint8, executableName string) {
 }
 
 // ClipClear is called in a separate process to clear the clipboard after 30 seconds
-// TODO Implement support for Windows via powershell, MacOS via pbcopy, Termux via termux-clipboard-set, X11 via xclip
+// TODO Implement support for MacOS via pbcopy, Termux via termux-clipboard-set, X11 via xclip
 // TODO Make clear time period configurable
 func ClipClear(oldContents string) {
 	time.Sleep(30 * time.Second)
@@ -53,12 +51,3 @@ func ClipClear(oldContents string) {
 	}
 	os.Exit(0)
 }
-
-// writeToStdin writes a string to a command's stdin
-func writeToStdin(cmd *exec.Cmd, input string) {
-	stdin, _ := cmd.StdinPipe()
-	go func() {
-		defer stdin.Close()
-		io.WriteString(stdin, input)
-	}()
-}

src/offline/WINcopy.go

@@ -0,0 +1,50 @@
+//go:build windows
+
+package offline
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"strings"
+	"time"
+)
+
+// TODO Handle cmd.Run errors, especially those due to missing clipboard utilities
+// TODO Handle index out of range errors when copying fields that do not exist
+
+// CopyField copies a field from an entry to the clipboard
+func CopyField(targetLocation string, field uint8, executableName string) {
+	if isFile, _ := TargetIsFile(targetLocation, true); isFile {
+		copySubject := DecryptGPG(targetLocation)[field]
+
+		cmd := exec.Command("powershell.exe", "-c", fmt.Sprintf("echo '%s' | Set-Clipboard", copySubject))
+		cmd.Run()
+
+		// TODO Unpair from mutn, as this breaks library functionality
+		// TODO Maybe use this method for mutn and strongly encourage other implementations to support a clipclear argument
+		// TODO If an implementation opts out of doing this, this may error out
+		cmd = exec.Command(executableName, "clipclear")
+		writeToStdin(cmd, copySubject)
+		cmd.Start()
+
+	} else {
+		fmt.Println(AnsiError + "Failed to read \"" + targetLocation + "\" - it is a directory" + AnsiReset)
+	}
+	os.Exit(0)
+}
+
+// ClipClear is called in a separate process to clear the clipboard after 30 seconds
+// TODO Make clear time period configurable
+func ClipClear(oldContents string) {
+	time.Sleep(30 * time.Second)
+
+	cmd := exec.Command("powershell.exe", "-c", "Get-Clipboard")
+	newContents, _ := cmd.Output()
+
+	if oldContents == strings.TrimRight(string(newContents), "\n") {
+		cmd := exec.Command("powershell.exe", "-c", "Set-Clipboard")
+		cmd.Run()
+	}
+	os.Exit(0)
+}

src/offline/utility.go

@@ -2,7 +2,9 @@ package offline
 
 import (
 	"fmt"
+	"io"
 	"os"
+	"os/exec"
 )
 
 // TargetIsFile TargetStatusCheck checks if the targetLocation is a file, directory, or is inaccessible
@@ -23,3 +25,12 @@ func TargetIsFile(targetLocation string, errorOnFail bool) (bool, bool) {
 		return true, true
 	}
 }
+
+// writeToStdin writes a string to a command's stdin
+func writeToStdin(cmd *exec.Cmd, input string) {
+	stdin, _ := cmd.StdinPipe()
+	go func() {
+		defer stdin.Close()
+		io.WriteString(stdin, input)
+	}()
+}