从0使用TCP手撸http服务器三

上篇我们说到我们主动关闭了连接，如果不关闭，浏览器会一直在等待反馈，这是因为我们反馈的数据不是浏览器认识的数据，我们必须按照http协议返回数据，浏览器才会正常接收和关闭。

反馈步骤：

1-先构建http头部

2-发送http头部

3-发送数据

源码：

#include "stdafx.h"

#include 
 
#pragma comment(lib, "ws2_32.lib")  /* WinSock使用的库函数 */


static char http_header[500]={0};
//http发送的协议头
static char *http_res_hdr_tmpl = 
	 "HTTP/1.1 200 OK\r\nServer: Huiyong's Server <0.1>\r\n"
	 "Accept-Ranges: bytes\r\nContent-Length: %d\r\nConnection: close\r\n"
	 "Content-Type: %s\r\n\r\n";



//反馈http文件
static void send_html(int remote_sock,char *page)
{
	//构造http首部发送
	int hdr_len=sprintf(http_header,http_res_hdr_tmpl,strlen(page),"html");
	send(remote_sock,http_header,hdr_len,0);
	int num =strlen(page)/1024;
	int index=0;
	int i=0;
	//分包发送
	for(i=0;i

日志：

http server running...
[http-Web] client IP:[127.0.0.1], port:[49605]
浏览器发送：
GET / HTTP/1.1
Host: 127.0.0.1
Connection: keep-alive
Cache-Control: max-age=0
sec-ch-ua: "Microsoft Edge";v="111", "Not(A:Brand";v="8", "Chromium";v="111"
sec-ch-ua-mobile: ?0
sec-ch-ua-platform: "Windows"
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.0.0 Safari/537.36 Edg/111.0.1661.51
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Sec-Fetch-Site: none
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Accept-Encoding: gzip, deflate, br
Accept-Language: zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6

浏览器发送：
客户端关闭：
[http-Web] client IP:[127.0.0.1], port:[49606]
浏览器发送：
GET /favicon.ico HTTP/1.1
Host: 127.0.0.1
Connection: keep-alive
sec-ch-ua: "Microsoft Edge";v="111", "Not(A:Brand";v="8", "Chromium";v="111"
sec-ch-ua-mobile: ?0
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/111.0.0.0 Safari/537.36 Edg/111.0.1661.51
sec-ch-ua-platform: "Windows"
Accept: image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: no-cors
Sec-Fetch-Dest: image
Referer: http://127.0.0.1/
Accept-Encoding: gzip, deflate, br
Accept-Language: zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6

浏览器发送：
客户端关闭：