SpoofDPI/request/http.go
2022-01-08 03:01:54 +09:00

108 lines
1.9 KiB
Go

package request
import (
"strings"
)
type HttpRequest struct {
Raw *[]byte
Method string
Domain string
}
func NewHttpRequest(raw *[]byte) HttpRequest {
return HttpRequest{
Raw: raw,
Method: extractMethod(raw),
Domain: extractDomain(raw),
}
}
func (r *HttpRequest) IsValidMethod() bool {
if _, exists := getValidMethods()[r.Method]; exists {
return true
}
return false
}
func (r *HttpRequest) ToChunks() {
}
func extractDomain(request *[]byte) string {
i := 0
for ; i < len(*request); i++ {
if (*request)[i] == ' ' {
i++
break
}
}
j := i
for ; j < len(*request); j++ {
if (*request)[j] == ' ' {
break
}
}
domain := string((*request)[i:j])
domain = strings.Replace(domain, "http://", "", 1)
domain = strings.Replace(domain, "https://", "", 1)
domain = strings.Split(domain, ":")[0]
domain = strings.Split(domain, "/")[0]
return strings.TrimSpace(domain)
}
func extractMethod(message *[]byte) string {
i := 0
for ; i < len(*message); i++ {
if (*message)[i] == ' ' {
break
}
}
method := strings.TrimSpace(string((*message)[:i]))
return strings.ToUpper(method)
}
func getValidMethods() map[string]struct{} {
return map[string]struct{}{
"DELETE": {},
"GET": {},
"HEAD": {},
"POST": {},
"PUT": {},
"CONNECT": {},
"OPTIONS": {},
"TRACE": {},
"COPY": {},
"LOCK": {},
"MKCOL": {},
"MOVE": {},
"PROPFIND": {},
"PROPPATCH": {},
"SEARCH": {},
"UNLOCK": {},
"BIND": {},
"REBIND": {},
"UNBIND": {},
"ACL": {},
"REPORT": {},
"MKACTIVITY": {},
"CHECKOUT": {},
"MERGE": {},
"M-SEARCH": {},
"NOTIFY": {},
"SUBSCRIBE": {},
"UNSUBSCRIBE": {},
"PATCH": {},
"PURGE": {},
"MKCALENDAR": {},
"LINK": {},
"UNLINK": {},
}
}