32.41M

1_-_Web

1.

Web:

2.

QRQR-
Telegram-

3.

web?
-

4.

5.

-

6.

-

7.

http

8.

http request
GET /hello.htm HTTP/1.1
User-Agent: Mozilla/4.0 (compatible; MSIE5.01;
Windows NT)
Host: www.tutorialspoint.com
Accept-Language: en-us
Accept-Encoding: gzip, deflate
Connection: Keep-Alive
header

9.

http response
Response code
HTTP/1.1 200 OK
Date: Mon, 27 Jul 2009 12:28:53 GMT
Server: Apache/2.2.14 (Win32)
Last-Modified: Wed, 22 Jul 2009 19:15:56 GMT
Content-Length: 88
Content-Type: text/html
Connection: Closed

10.

Get
-
post
-

11.

http state codes

12.

http headers
DNT
User-agent
Content-length
Date
Accept-language

13.

cookies

14.

15.

HTML
<p>
</P>

16.

<p></P>
<em></em>

17.

-

18.

<!doctype html>
<html>
<head>
<meta charset="utf-8" />
<title>
</head>
<body>
<p>
p>
</body>
</html>
title>

19.

DOM-

20.

Javascript

21.

22.

23.

24.

Developer tools

25.

OWASP TOP 10

26.

cwe
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