From b967619a3a3eaa72a90488a98a2620f28517c462 Mon Sep 17 00:00:00 2001
From: bagas <bagas@fossy.my.id>
Date: Tue, 2 Dec 2025 19:17:20 +0700
Subject: [PATCH] fix: chunk request not sent properly

---
 server/http.go | 83 +++++---------------------------------------------
 1 file changed, 7 insertions(+), 76 deletions(-)

diff --git a/server/http.go b/server/http.go
index 1088f84..319e906 100644
--- a/server/http.go
+++ b/server/http.go
@@ -8,7 +8,6 @@ import (
 	"io"
 	"log"
 	"net"
-	"net/http"
 	"regexp"
 	"strconv"
 	"strings"
@@ -16,7 +15,6 @@ import (
 	"tunnel_pls/session"
 	"tunnel_pls/utils"
 
-	"github.com/gorilla/websocket"
 	"golang.org/x/crypto/ssh"
 )
 
@@ -25,61 +23,6 @@ var BAD_GATEWAY_RESPONSE = []byte("HTTP/1.1 502 Bad Gateway\r\n" +
 	"Content-Type: text/plain\r\n\r\n" +
 	"Bad Gateway")
 
-var upgrader = websocket.Upgrader{
-	ReadBufferSize:  1024,
-	WriteBufferSize: 1024,
-}
-
-type connResponseWriter struct {
-	conn   net.Conn
-	header http.Header
-	wrote  bool
-}
-
-func (w *connResponseWriter) Header() http.Header {
-	if w.header == nil {
-		w.header = make(http.Header)
-	}
-	return w.header
-}
-
-func (w *connResponseWriter) WriteHeader(statusCode int) {
-	if w.wrote {
-		return
-	}
-	w.wrote = true
-	_, err := fmt.Fprintf(w.conn, "HTTP/1.1 %d %s\r\n", statusCode, http.StatusText(statusCode))
-	if err != nil {
-		log.Printf("Error writing HTTP response: %v", err)
-		return
-	}
-	err = w.header.Write(w.conn)
-	if err != nil {
-		log.Printf("Error writing HTTP header: %v", err)
-		return
-	}
-	_, err = fmt.Fprint(w.conn, "\r\n")
-	if err != nil {
-		log.Printf("Error writing HTTP header: %v", err)
-		return
-	}
-}
-
-func (w *connResponseWriter) Write(b []byte) (int, error) {
-	if !w.wrote {
-		w.WriteHeader(http.StatusOK)
-	}
-	return w.conn.Write(b)
-}
-
-func (w *connResponseWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
-	rw := bufio.NewReadWriter(
-		bufio.NewReader(w.conn),
-		bufio.NewWriter(w.conn),
-	)
-	return w.conn, rw, nil
-}
-
 type CustomWriter struct {
 	RemoteAddr  net.Addr
 	writer      io.Writer
@@ -198,10 +141,9 @@ func (cw *CustomWriter) Write(p []byte) (int, error) {
 			}
 			req := cw.Requests[0]
 			req.Written += len(body)
-
 			if req.Chunked {
 				req.Tail = append(req.Tail, p[len(p)-5:]...)
-				if bytes.Equal(req.Tail, []byte("0\r\n\r\n")) {
+				if bytes.Contains(p, []byte("0\r\n\r\n")) {
 					cw.interaction.SendMessage(fmt.Sprintf("\033[32m%s %s -> %s %s \033[0m\r\n", timestamp, cw.RemoteAddr.String(), req.Method, req.Path))
 				}
 			} else if req.ContentSize != -1 {
@@ -211,6 +153,7 @@ func (cw *CustomWriter) Write(p []byte) (int, error) {
 				}
 			} else {
 				cw.Requests = cw.Requests[1:]
+				cw.interaction.SendMessage(fmt.Sprintf("\033[32m%s %s -> %s %s \033[0m\r\n", timestamp, cw.RemoteAddr.String(), req.Method, req.Path))
 			}
 			cw.buf = nil
 			return len(p), nil
@@ -223,10 +166,10 @@ func (cw *CustomWriter) Write(p []byte) (int, error) {
 	}
 
 	req := cw.Requests[0]
-	req.Written += len(p)
+	req.Written += n
 	if req.Chunked {
 		req.Tail = append(req.Tail, p[len(p)-5:]...)
-		if bytes.Equal(req.Tail, []byte("0\r\n\r\n")) {
+		if bytes.Contains(p, []byte("0\r\n\r\n")) {
 			cw.Requests = cw.Requests[1:]
 			cw.interaction.SendMessage(fmt.Sprintf("\033[32m%s %s -> %s %s \033[0m\r\n", timestamp, cw.RemoteAddr.String(), req.Method, req.Path))
 		}
@@ -235,10 +178,11 @@ func (cw *CustomWriter) Write(p []byte) (int, error) {
 			cw.Requests = cw.Requests[1:]
 			cw.interaction.SendMessage(fmt.Sprintf("\033[32m%s %s -> %s %s \033[0m\r\n", timestamp, cw.RemoteAddr.String(), req.Method, req.Path))
 		}
+
 	} else {
 		cw.Requests = cw.Requests[1:]
+		cw.interaction.SendMessage(fmt.Sprintf("\033[32m%s %s -> %s %s \033[0m\r\n", timestamp, cw.RemoteAddr.String(), req.Method, req.Path))
 	}
-
 	return n, nil
 }
 
@@ -247,19 +191,6 @@ func (cw *CustomWriter) AddInteraction(interaction *session.Interaction) {
 }
 
 var redirectTLS = false
-var allowedCors = make(map[string]bool)
-var isAllowedAllCors = false
-
-func init() {
-	corsList := utils.Getenv("cors_list")
-	if corsList == "*" {
-		isAllowedAllCors = true
-	} else {
-		for _, allowedOrigin := range strings.Split(corsList, ",") {
-			allowedCors[allowedOrigin] = true
-		}
-	}
-}
 
 func NewHTTPServer() error {
 	listener, err := net.Listen("tcp", ":80")
@@ -416,7 +347,7 @@ func forwardRequest(cw *CustomWriter, initialRequest *RequestHeaderFactory, sshS
 
 	_, err = channel.Write(initialRequest.Finalize())
 	if err != nil {
-		log.Printf("Failed to write forwarded-tcpip:", err)
+		log.Printf("Failed to forward request: %v", err)
 		return
 	}