update refactor http request

This commit is contained in:
xvzc 2022-01-08 03:34:26 +09:00
parent b615f4aabc
commit 539d256146
3 changed files with 25 additions and 36 deletions

View File

@ -4,10 +4,11 @@ import (
"fmt"
"net"
"github.com/xvzc/SpoofDPI/request"
"github.com/xvzc/SpoofDPI/util"
)
func HandleHttp(clientConn net.Conn, ip string, message []byte) {
func HandleHttp(clientConn net.Conn, ip string, r *request.HttpRequest) {
remoteConn, err := net.Dial("tcp", ip+":80") // create connection to server
if err != nil {
util.Debug(err)
@ -20,7 +21,7 @@ func HandleHttp(clientConn net.Conn, ip string, message []byte) {
go Serve(remoteConn, clientConn, "HTTP")
util.Debug("[HTTP] Sending request to the server")
fmt.Fprintf(remoteConn, string(message))
fmt.Fprintf(remoteConn, string(*r.Raw))
Serve(clientConn, remoteConn, "HTTP")
}

View File

@ -39,6 +39,7 @@ func Start() {
util.Debug("Client sent data: ", len(b))
r := request.NewHttpRequest(&b)
util.Debug("Request: \n" + string(*r.Raw))
if !r.IsValidMethod() {
log.Println("Unsupported method: ", r.Method)
@ -59,7 +60,7 @@ func Start() {
HandleHttps(clientConn, ip)
} else {
util.Debug("HTTP Requested.")
HandleHttp(clientConn, ip, b)
HandleHttp(clientConn, ip, &r)
}
}()
}

View File

@ -8,13 +8,16 @@ type HttpRequest struct {
Raw *[]byte
Method string
Domain string
Version string
}
func NewHttpRequest(raw *[]byte) HttpRequest {
method, domain, version := parse(raw)
return HttpRequest{
Raw: raw,
Method: extractMethod(raw),
Domain: extractDomain(raw),
Method: method,
Domain: domain,
Version: version,
}
}
@ -30,42 +33,26 @@ func (r *HttpRequest) ToChunks() {
}
func extractDomain(request *[]byte) string {
i := 0
for ; i < len(*request); i++ {
if (*request)[i] == ' ' {
i++
break
func parse(raw *[]byte) (string, string, string) {
var firstLine string
for i := 0; i < len(*raw); i++ {
if (*raw)[i] == '\n' {
firstLine = string((*raw)[:i])
}
}
j := i
for ; j < len(*request); j++ {
if (*request)[j] == ' ' {
break
}
}
tokens := strings.Split(firstLine, " ")
method := strings.TrimSpace(tokens[0])
domain := strings.TrimSpace(tokens[1])
version := strings.TrimSpace(tokens[2])
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)
return method, domain, version
}
func getValidMethods() map[string]struct{} {