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module_handler.go
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module_handler.go
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package session
import (
"encoding/json"
"fmt"
"regexp"
"strconv"
"github.com/evilsocket/islazy/tui"
)
const IPv4Validator = `^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$`
type ModuleHandler struct {
Name string
Description string
Parser *regexp.Regexp
Exec func(args []string) error
}
func NewModuleHandler(name string, expr string, desc string, exec func(args []string) error) ModuleHandler {
h := ModuleHandler{
Name: name,
Description: desc,
Parser: nil,
Exec: exec,
}
if expr != "" {
h.Parser = regexp.MustCompile(expr)
}
return h
}
func (h *ModuleHandler) Help(padding int) string {
return fmt.Sprintf(" "+tui.Bold("%"+strconv.Itoa(padding)+"s")+" : %s\n", h.Name, h.Description)
}
func (h *ModuleHandler) Parse(line string) (bool, []string) {
if h.Parser == nil {
if line == h.Name {
return true, nil
}
return false, nil
}
result := h.Parser.FindStringSubmatch(line)
if len(result) == h.Parser.NumSubexp()+1 {
return true, result[1:]
}
return false, nil
}
type JSONModuleHandler struct {
Name string `json:"name"`
Description string `json:"description"`
Parser string `json:"parser"`
}
func (h ModuleHandler) MarshalJSON() ([]byte, error) {
j := JSONModuleHandler{
Name: h.Name,
Description: h.Description,
}
if h.Parser != nil {
j.Parser = h.Parser.String()
}
return json.Marshal(j)
}