feat: 新增 sys.uptime/net.iface/net.conn/net.speed/proc.tree/file.empty/user.info 命令

internal/executor/userinfo.go

@@ -0,0 +1,78 @@
+package executor
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/exec"
+	"os/user"
+	"runtime"
+	"strings"
+)
+
+// runUserInfo implements `kopsc user info`: show user details.
+func runUserInfo(ctx context.Context, req BuiltinRequest) error {
+	var username string
+	if len(req.Args) == 0 {
+		// Current user
+		u, err := user.Current()
+		if err != nil {
+			return fmt.Errorf("获取当前用户失败: %w", err)
+		}
+		username = u.Username
+	} else {
+		username = req.Args[0]
+	}
+
+	switch runtime.GOOS {
+	case "linux", "darwin":
+		return userInfoUnix(ctx, username, req)
+	case "windows":
+		return userInfoWindows(ctx, username, req)
+	default:
+		return fmt.Errorf("不支持的操作系统: %s", runtime.GOOS)
+	}
+}
+
+func userInfoUnix(ctx context.Context, username string, req BuiltinRequest) error {
+	// Use id command for comprehensive info
+	cmd := exec.CommandContext(ctx, "id", username)
+	out, err := cmd.Output()
+	if err != nil {
+		return fmt.Errorf("用户 %q 不存在或 id 命令失败: %w", username, err)
+	}
+	fmt.Fprintf(req.Stdout, "用户: %s\n", strings.TrimSpace(string(out)))
+
+	// Get home directory and shell from /etc/passwd
+	if data, err := os.ReadFile("/etc/passwd"); err == nil {
+		for _, line := range strings.Split(string(data), "\n") {
+			fields := strings.Split(line, ":")
+			if len(fields) >= 7 && fields[0] == username {
+				fmt.Fprintf(req.Stdout, "UID:     %s\n", fields[2])
+				fmt.Fprintf(req.Stdout, "GID:     %s\n", fields[3])
+				fmt.Fprintf(req.Stdout, "描述:    %s\n", fields[4])
+				fmt.Fprintf(req.Stdout, "家目录:  %s\n", fields[5])
+				fmt.Fprintf(req.Stdout, "Shell:   %s\n", fields[6])
+				break
+			}
+		}
+	}
+
+	// Groups
+	groupsCmd := exec.CommandContext(ctx, "groups", username)
+	if groupsOut, err := groupsCmd.Output(); err == nil {
+		fmt.Fprintf(req.Stdout, "组:      %s\n", strings.TrimSpace(string(groupsOut)))
+	}
+
+	return nil
+}
+
+func userInfoWindows(ctx context.Context, username string, req BuiltinRequest) error {
+	cmd := exec.CommandContext(ctx, "net", "user", username)
+	out, err := cmd.Output()
+	if err != nil {
+		return fmt.Errorf("用户 %q 不存在或 net user 失败: %w", username, err)
+	}
+	fmt.Fprintln(req.Stdout, string(out))
+	return nil
+}