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path: root/cmd/root.go
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package cmd

import (
	"fmt"
	"github.com/FalconOpsLLC/goexec/internal/util"
	"github.com/FalconOpsLLC/goexec/pkg/goexec"
	"github.com/FalconOpsLLC/goexec/pkg/goexec/dce"
	"github.com/FalconOpsLLC/goexec/pkg/goexec/smb"
	"github.com/RedTeamPentesting/adauth"
	"github.com/oiweiwei/go-msrpc/ssp"
	"github.com/oiweiwei/go-msrpc/ssp/gssapi"
	"github.com/rs/zerolog"
	"github.com/spf13/cobra"
	"os"
)

var (
	debug        bool
	logJson      bool
	returnCode   int
	outputMethod string
	outputPath   string
	proxy        string

	log zerolog.Logger

	rpcClient dce.Client
	smbClient smb.Client

	exec = goexec.ExecutionIO{
		Input:  new(goexec.ExecutionInput),
		Output: new(goexec.ExecutionOutput),
	}

	authOpts   *adauth.Options
	credential *adauth.Credential
	target     *adauth.Target

	rootCmd = &cobra.Command{
		Use:   "goexec",
		Short: `Windows remote execution multitool`,
		Long:  `TODO`,

		PersistentPreRun: func(cmd *cobra.Command, args []string) {

			if logJson {
				log = zerolog.New(os.Stderr)
			} else {
				log = zerolog.New(zerolog.ConsoleWriter{Out: os.Stderr})
			}

			log = log.Level(zerolog.InfoLevel).With().Timestamp().Logger()
			if debug {
				log = log.Level(zerolog.DebugLevel)
			}

			if outputPath != "" {
				if outputMethod == "smb" {
					if exec.Output.RemotePath == "" {
						exec.Output.RemotePath = util.RandomWindowsTempFile()
					}
					exec.Output.Provider = &smb.OutputFileFetcher{
						Client:           &smbClient,
						Share:            `C$`,
						File:             exec.Output.RemotePath,
						DeleteOutputFile: !exec.Output.NoDelete,
					}
				}
			}
		},
	}
)

func init() {
	// Cobra init
	{
		cobra.EnableCommandSorting = false

		rootCmd.InitDefaultVersionFlag()
		rootCmd.InitDefaultHelpCmd()
		rootCmd.PersistentFlags().BoolVar(&debug, "debug", false, "Enable debug logging")
		rootCmd.PersistentFlags().BoolVar(&logJson, "log-json", false, "Log in JSON format")

		dcomCmdInit()
		rootCmd.AddCommand(dcomCmd)
		wmiCmdInit()
		rootCmd.AddCommand(wmiCmd)
		scmrCmdInit()
		rootCmd.AddCommand(scmrCmd)
		tschCmdInit()
		rootCmd.AddCommand(tschCmd)
	}

	// Auth init
	{
		gssapi.AddMechanism(ssp.SPNEGO)
		gssapi.AddMechanism(ssp.NTLM)
		gssapi.AddMechanism(ssp.KRB5)

		authOpts = &adauth.Options{Debug: log.Debug().Msgf}
		authOpts.RegisterFlags(rootCmd.PersistentFlags())
	}
}

func Execute() {
	if err := rootCmd.Execute(); err != nil {
		fmt.Println(err)
		os.Exit(1)
	}
	os.Exit(returnCode)
}