Reset master to testing content

internal/clipboard/clipboard.go

@@ -0,0 +1,109 @@
+// Copyright (c) 2026 Storm Dragon
+// Authors: Storm Dragon, Angus Kola
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package clipboard
+
+import (
+	"encoding/json"
+	"io"
+	"net/url"
+	"os"
+	"path"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"syscall"
+)
+
+// Snapshot contains only the clipboard facts needed for Cthulhu's announcement.
+type Snapshot struct {
+	Text    string   `json:"text"`
+	HasText bool     `json:"hasText"`
+	Image   bool     `json:"image"`
+	URIs    []string `json:"uris"`
+}
+
+// WriteMessage is called only by the short lived clipboard helper process.
+// URI filesystem checks stay here so the parent can enforce a read deadline.
+func WriteMessage(output io.Writer) error {
+	snapshot, err := read_native()
+	if err != nil {
+		return err
+	}
+	return json.NewEncoder(output).Encode(struct {
+		Message string `json:"message"`
+	}{Message: Format(snapshot)})
+}
+
+func Format(snapshot Snapshot) string {
+	if snapshot.Image {
+		return "The clipboard contains a image"
+	}
+	if len(snapshot.URIs) != 0 {
+		return format_uris(snapshot.URIs)
+	}
+	if snapshot.HasText {
+		return "Text in clipboard " + snapshot.Text
+	}
+	return "The clipboard is empty"
+}
+
+func format_uris(uris []string) string {
+	objects := make([]string, 0, len(uris))
+	for _, raw := range uris {
+		if raw == "" {
+			continue
+		}
+		parsed, err := url.Parse(raw)
+		if err != nil {
+			objects = append(objects, raw)
+			continue
+		}
+		name := path.Base(parsed.Path)
+		if name == "." || name == "/" {
+			name = raw
+		}
+		parts := []string{name}
+		if parsed.Scheme == "file" && (parsed.Host == "" || parsed.Host == "localhost") {
+			localPath := parsed.Path
+			link := false
+			if info, err := os.Lstat(localPath); err == nil && info.Mode()&os.ModeSymlink != 0 {
+				link = true
+			}
+			if info, err := os.Stat(localPath); err == nil {
+				if info.IsDir() {
+					parts = append(parts, "Folder")
+				} else if info.Mode().IsRegular() {
+					parts = append(parts, "File")
+				}
+				if !link && is_mount(localPath, info) {
+					parts = append(parts, "Disk")
+				}
+			}
+			if link {
+				parts = append(parts, "Link")
+			}
+		}
+		objects = append(objects, strings.Join(parts, " "))
+	}
+	if len(objects) == 0 {
+		return "The clipboard is empty"
+	}
+	label := " Object in clipboard "
+	if len(objects) > 1 {
+		label = " Objects in clipboard "
+	}
+	return strconv.Itoa(len(objects)) + label + strings.Join(objects, " ")
+}
+
+func is_mount(localPath string, info os.FileInfo) bool {
+	parentPath := filepath.Dir(filepath.Clean(localPath))
+	parent, err := os.Stat(parentPath)
+	if err != nil {
+		return false
+	}
+	currentStat, currentOK := info.Sys().(*syscall.Stat_t)
+	parentStat, parentOK := parent.Sys().(*syscall.Stat_t)
+	return currentOK && parentOK && (currentStat.Dev != parentStat.Dev || currentStat.Ino == parentStat.Ino)
+}