Link Analysis:
https://oa.hbgf.net.cn/login.jsp;jsessionid=47084322738F8DB18D60752944DFD1AA
http or https expressed using the http protocol or https protocol , followed with a domain name, back to? Before the call path? After the call parameters
http: // domain // path //? parameters
A plurality of parameters & symbolic links
Header :
Request URL: https://oa.hbgf.net.cn/resource/js/base64.js?s_cache=1575255899708
Request method: the Get
Remote Address: 221.230.3.228:443
Status Code : 200 is OK
Version : HTTP / 1.1
Request method :
Get: a request acquiring request-URI of the resource identifiers
The POST : the request-URI additional new data identified resource
The HEAD : Request by the Request-URI of the response message to the identified resource packet header
The PUT : a storage resource request to the server, and use Request-URI as identification
DELETE : delete server request Request-URI resource identified
The TRACE : echo request information requesting server received mainly used for testing or diagnosis
The CONNECT : Reserved for future use
The OPTIONS : Request query performance servers , or query and resource -related options and requirements
For example :
Post Method : asks the server has received the requested data back attached to the request, to submit the form used.
Requests consists of three parts composed of : a request line , request header, the request body
Some browser requests above the head will have a line of GET . . . Called the request line
The request line : GET /.html HTTP / 1.1
Request header :
| Accept: |
*/* |
| Accept-Encoding |
:gzip, deflate, br |
| Accept-Language |
: Zh-CN, zh; q = 0.8, zh-TW; q = 0.7, zh-HK; q = 0.5, en-US; q = 0.3, en; q = 0.2 |
| Connection: |
keep-alive |
| Cookie: |
route=4ded6ae40558cd54d12e1621…84322738F8DB18D60752944DFD1AA |
| Host: |
oa.hbgf.net.cn |
| Referer: |
https://oa.hbgf.net.cn/login.j…084322738F8DB18D60752944DFD1AA |
| User-Agent: |
Mozilla/5.0 (Windows NT 6.1; W…) Gecko/20100101 Firefox/60.0 |
Each request header fields meanings:
Accept for: tell the server, the client machine data types supported
Charset-the Accept : tell the server to the client using code
Encoding-the Accept : tell the server that the client supports data compression format
Language-the Accept : tell the language used by the client server
Host : Tell the server you want to access the host name
Since-Hodified-IF : By this tells the server resources cache time
Referer : tell the server what it was by one to access the server resources ( security chain)
User-Agent: the client through this tells the server, the client software environment , browser version
The cookie : Through this data to the server with
HTTP response also includes three sections: a status line, a message packet header, the response body
Status line : for describing a server processing result to the request.
Header / response header : used to describe the basic description information of the server, and data server through description of these data, the client may inform how it will loopback processing data.
Response text : on behalf of the server to the client to send back data
Status line : the HTTP / 1.1 200 is the OK
In response header :
| Accept-Ranges |
bytes |
| Access-Control-Allow-Origin |
* |
| Cache-Control： |
max-age=604800 |
| Connection： |
keep-alive |
| Content-Length： |
3075 |
| Content-Type： |
application/javascript |
| Date： |
Fri, 13 Dec 2019 08:36:43 GMT |
| ETag： |
W/"3075-1575190034000" |
| Expires： |
Mon, 09 Dec 2019 03:04:59 GMT |
| Last-Modified： |
Sun, 01 Dec 2019 08:47:14 GMT |
| Server： |
nginx |
Response data :
html{ height:100%;}
body.tTemplate{
background:url(../images/body_bg.png) no-repeat right 50px #f7f7f7;
}
Each response header meaning fields:
LOCATION : The head with the 302 status code to use for telling customers to whom
Server : server through the head, told the type of browser servers
Encoding-Content : data compression format
The Length-Content : tell the browser to send data back length
Type-Content : Tell Liu pulled server returns data types
Modified-Last : tell the browser cache time the current resource
Refresh : tell the browser how often to refresh
Disposition-Content : tell the browser to open the way to download data
Encoding-Transfer : tell the browser data transfer format
The ETag : caching the respective head
The Expires : server through the head, telling the browser to cache resources loopback how long, -1 or 0 , no cache
Catch-Control：no-cache
Pragmatic：no-cache
By the above two heads, not to control the browser cache data
| Connection： |
keep-alive, the connection holding means is a three-way handshake may be directly sent without a request. |
| Connection： |
close, each request must be made three-way handshake. |
Status Code :
100-199 : represents successful reception request to the client to continue to submit the next request to complete the whole process
200-299 : identifying successfully received the request and has completed the entire process, commonly 200
300-399 : to complete the request, the client requests further refinement, e.g., the requested resource has been moved to a new address: used 302 , 307 , 304
400-499 : the client's request error, commonly 404 , request link does not exist
500-599 : server error