How to extract Cookie Data from Request Body in Jmeter - cookies

I have to extract cookie data from request body of a HTTP Request. Please guide me how can i achieve that.

Cookies are not passed in request body.
From server to browser they come in Set-Cookie header
From browser to server they go in Cookie header
See Using HTTP cookies article for more details.
In JMeter there is a special test element - HTTP Cookie Manager. It automatically extracts cookies from the server response, stores them internally and if domain and path of the next request match - the cookie(s) are added to the Cookie header of the next request.
In case you want to access the values of cookies which are stored in the HTTP Cookie Manager anywhere else - you can add CookieManager.save.cookies=true property to user.properties file and upon JMeter restart cookies will be saved into JMeter Variables with COOKIE_ prefix

Related

How can I decode the http encrypted cookie in Jmeter

I am now using Jmeter to prepare a test plan for my web. The rough flow of the script is that I can check my profile after login. I tried to run my recorded script, and found that the cookie is encoded in http format which I don't want it to be.
Therefore, I would like to ask is there anyway so that I can have a not encrypted cookie value?
[I applied a cookie manager in the script.
The value of the cookie now is something like "%22mh8eIAH8rfsZsM3r%22".
The value that I want is something like "mh8eIAH8rfsZsM3r"]
%22 means " which is percent-encoded, if you want to decode it back - take a look at __urldecode() function:
In general you should not be recording any cookies, you need to add a HTTP Cookie Manager and JMeter will automatically extract incoming cookies from Set-Cookie response header and add them to the next request as Cookie header if domain and path match the ones in the cookie, it's not expired, etc
If you need to access the cookie value as a JMeter Variable the easiest way is adding the next line to user.properties file:
CookieManager.save.cookies=true
and upon JMeter restart you will be able to use the cookie value as ${COOKIE_your-cookie-name-here}
More information: HTTP Cookie Manager Advanced Usage - A Guide

JMeter 5.4.1 Cookie Manager - User-Defined Cookie not added to request's cookies

Firstly, I did add the line CookieManager.check.cookies=false to jmeter.properties.
What I'm Trying to Do
I want to add a cookie to a request's existing cookies.
For example, I see the request has [edited]:
Cookie Data:
c1=sfasfsfsfsfs; c2=erqwerqwrr; c3=poiuopiupoi
Expected Results
I would like it to have:
Cookie Data:
c1=sfasfsfsfsfs; c2=erqwerqwrr; c3=poiuopiupoi; partner=favicon.ico
Here is what I tried:
BASE_URL_2 is a variable defined in the form qa.company.com.
Actual Results
Whatever I have tried so far has not made any change in the cookies.
What else shall I try?
Underlying Motivation
Recorded a Web session and played it back.
Added a RegEx Extractor to pull out a token and then added it to subsequent requests. That helped.
However, certain requests failed with an custom application exception Security violation, please refresh.
Probably session login state is not being passed, so the website thinks the call is "stale".
I've seen this on the GUI when the session expires and you try to click a button on the site.
On comparing the cookies seem in JMeter with what I saw in the Chrome Debugger, it was clear that there were more cookies in the running application than what I had in JMeter.
Are you sure you're using HTTPS protocol because if you have secure flag and using HTTP protocol - the cookie will not be sent.
Also remove = from partner= otherwise you will end up with partner==favicon.ico
Demo:
More information:
Using HTTP cookies
HTTP Cookie Manager Advanced Usage - A Guide

Storing the value of cookie in variable but doesn't appear in cookie data in request body in Jmeter

There are lots of cookies present and I need to extract those cookie and pass them as a post parameter in further request. So i have changed the setting for them in jmeter.property file as
save.cookies=true
check.cookies=false
Then after running the test, I got those cookie value in debug sampler as ${COOKIE_}
EXPECTED:
GET data:
Cookie Data:
private_content_version=e17f5f6a5ed9557378a6f85fa2202c0e;form_key=mCPI56sUAl6bqAJdqq;
Actual Result
GET data:
[no cookies]
I have passed in the value in HTTP header manager as
name=private_content_version
Value=${COOKIE_private_content_version}
name=form_key
Value=${COOKIE_Form_key}
But instead of value, same variable is passed as ${COOKIE_private_content_version}
Also there are multiple cookies and I need to fetch them too and pass them in further http request payload,but unable to do that.What I AM MISSING?Please help
DO I NEED TO ADD THEM COOKIE MANAGER UNDER EACH OF THE HTTP REQUEST?OR DEFINED IN GLOBALLY?
Also how to define them ?
You don't need to manually add cookies in the HTTP Header Manager, the Cookie Manager should normally handle them.
If for some reason you need to build Cookie header manually make sure to use strict Cookie name and in the value one or more name/value pairs of cookies separated by semicolons
You might find HTTP Cookie Manager Advanced Usage - A Guide article useful, it contains comprehensive information on HTTP Cookie Manager configuration and troubleshooting.

How to handle google analytics cookie for ex _ga in jmeter

There r some cookies like _ga, jsessionid etc which are part of jmeter recording script but when i replay script these cookies are not handled by cookie manager. How can i send these values in jmeter request . Also i m unable to corelate these cookies . I guess client side js is responsible for sending these cookies.
I m completely blocked. Please help.
JMeter's HTTP Cookie Manager stores valid cookies which are coming in Set-Cookie response header, the invalid ones are being discarded.
You can inspect what's going on there by adding/uncommenting the next line in log4j2.xml file
<Logger name="org.apache.jmeter.protocol.http.control" level="debug" />
If you see the evidence that cookies are detected but not stored you can try the following:
Set Cookie Policy to something less restrictive, i.e. netscape
Add the next line to user.properties file:
CookieManager.check.cookies=true
More information: HTTP Cookie Manager Advanced Usage - A Guide

Why cookies appear in request header but not response header when visiting a new website?

This is a incognito window in chrome visiting oracle. Please notice that the request header already has cookie in the very request.
I also tried to use GuzzleHttp in php and postman. I can't get the cookie from anywhere.
Actually I am trying to crawl some other website, and that website has the same problem. I can't get the cookie so I got rejected.
Isn't cookie something that the server returns to the browser? Why in this case it is like the browse know the cookie in the first?
Http cookies are set once in a response by the server (with a Set-Cookie header), then they are included by the browser in each applicable subsequent request.
So it is perfectly normal that cookies your browser already obtained are present in the request but not in the response.
Cookies may also be set on browser side by Javascript, but that also can't happen before the first request (to at least retrieve that Javascript).