From 2e48d3ddd01d3375201e464ead0146fa73376406 Mon Sep 17 00:00:00 2001
From: Niccolo Borgioli <hi@nicco.io>
Date: Fri, 24 May 2024 23:55:58 +0200
Subject: [PATCH] url path

---
 app/server.go | 84 ++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 83 insertions(+), 1 deletion(-)

diff --git a/app/server.go b/app/server.go
index e2e6f44..8ab43a6 100644
--- a/app/server.go
+++ b/app/server.go
@@ -2,13 +2,95 @@ package main
 
 import (
 	"fmt"
+	"log"
+	"strings"
+
 	// Uncomment this block to pass the first stage
 	"net"
 	"os"
 )
 
+const (
+	HTTPDelimiter = "\r\n"
+)
+
+type Header struct {
+	Name  string
+	Value string
+}
+type Request struct {
+	Method  string
+	Path    string
+	Version string
+	Body    string
+	Headers []Header
+}
+
+type HttpResponse struct {
+	Code    uint
+	Message string
+}
+
+var (
+	BadRequest = HttpResponse{Code: 400, Message: "Bad Response"}
+	NotFound   = HttpResponse{Code: 404, Message: "Not Found"}
+	OK         = HttpResponse{Code: 200, Message: "OK"}
+)
+
+// func BadRequest(conn net.Conn) {
+// 	fmt.Fprintf(conn, "HTTP/1.1 400 Bad Request%s%s", HTTPDelimiter, HTTPDelimiter)
+// }
+
+func Respond(conn net.Conn, response HttpResponse) {
+	fmt.Fprintf(conn, "HTTP/1.1 %d %s%s%s", response.Code, response.Message, HTTPDelimiter, HTTPDelimiter)
+}
+
 func handleConnection(conn net.Conn) {
-	fmt.Fprintf(conn, "HTTP/1.1 200 OK\r\n\r\n")
+	defer conn.Close()
+	buffer := make([]byte, 1024)
+	n, err := conn.Read(buffer)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	contents := string(buffer[:n])
+	parts := strings.Split(contents, HTTPDelimiter)
+	request := Request{}
+	isBody := false
+	for i, part := range parts {
+		if i == 0 {
+			head := strings.Split(part, " ")
+			if len(head) != 3 {
+				Respond(conn, BadRequest)
+				return
+			}
+			request.Method = head[0]
+			request.Path = head[1]
+			request.Version = head[2]
+			continue
+		}
+
+		if isBody {
+			request.Body = part
+			break
+		}
+
+		// Headers
+		if part == "" {
+			isBody = true
+			continue
+		}
+		h := strings.SplitN(part, ": ", 2)
+		header := Header{Name: h[0], Value: h[1]}
+		request.Headers = append(request.Headers, header)
+	}
+	fmt.Println(request)
+
+	if request.Path == "/" {
+		Respond(conn, OK)
+		return
+	}
+	Respond(conn, NotFound)
 }
 
 func main() {