File: caplets.go

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package caplets

import (
	"fmt"

	"github.com/bettercap/bettercap/caplets"
	"github.com/bettercap/bettercap/session"

	"github.com/dustin/go-humanize"

	"github.com/evilsocket/islazy/tui"
)

type CapletsModule struct {
	session.SessionModule
}

func NewCapletsModule(s *session.Session) *CapletsModule {
	mod := &CapletsModule{
		SessionModule: session.NewSessionModule("caplets", s),
	}

	mod.AddHandler(session.NewModuleHandler("caplets.show", "",
		"Show a list of installed caplets.",
		func(args []string) error {
			return mod.Show()
		}))

	mod.AddHandler(session.NewModuleHandler("caplets.paths", "",
		"Show a list caplet search paths.",
		func(args []string) error {
			return mod.Paths()
		}))
	mod.AddHandler(session.NewModuleHandler("caplets.update", "",
               "Install/updates the caplets.",
               func(args []string) error {
                       return mod.Update()
               }))

	return mod
}

func (mod *CapletsModule) Name() string {
	return "caplets"
}

func (mod *CapletsModule) Description() string {
	return "A module to list caplets."
}

func (mod *CapletsModule) Author() string {
	return "Simone Margaritelli <evilsocket@gmail.com>"
}

func (mod *CapletsModule) Configure() error {
	return nil
}

func (mod *CapletsModule) Stop() error {
	return nil
}

func (mod *CapletsModule) Start() error {
	return nil
}

func (mod *CapletsModule) Show() error {
	caplets := caplets.List()
	if len(caplets) == 0 {
		return fmt.Errorf("no installed caplets on this system, in Debian install bettercap-caplets package")
	}

	colNames := []string{
		"Name",
		"Path",
		"Size",
	}
	rows := [][]string{}

	for _, caplet := range caplets {
		rows = append(rows, []string{
			tui.Bold(caplet.Name),
			caplet.Path,
			tui.Dim(humanize.Bytes(uint64(caplet.Size))),
		})
	}

	tui.Table(mod.Session.Events.Stdout, colNames, rows)

	return nil
}

func (mod *CapletsModule) Paths() error {
	colNames := []string{
		"Path",
	}
	rows := [][]string{}

	for _, path := range caplets.LoadPaths {
		rows = append(rows, []string{path})
	}

	tui.Table(mod.Session.Events.Stdout, colNames, rows)
	mod.Printf("(paths can be customized by defining the %s environment variable)\n", tui.Bold(caplets.EnvVarName))

	return nil
}

func (mod *CapletsModule) Update() error {
	mod.Info("this command is inactive in Debian. Install the Debian package bettercap-caplets to get the caplets")
	return nil
}