I am testing a web application in Jmeter.
The application generates a random token and stores the token in coherence cache on the server-side(Expires in every 15 mins) every time we hit the random token request and pass the generated token in request headers of subsequent requests.
In subsequent requests, when we do submit, it validates token from request headers with token stored in the cache on the server-side. If it matches, the request will pass else fail.
How to handle this scenario in Jmeter.
The Big challenge here is we have enabled duplicate sessions due to challenges in the creation of user ids.
So the token has to get only once per user ID and pass the same token for all the duplicate sessions of the same user ID in all the requests.
Don't re-use the credentials, so each JMeter Thread (virtual user) would represent only one real user, you can use CSV Data Set Config for parameterization of the credentials.
When the token is generated it is passed to the browser somehow, either in response body or in response headers. So you should be able to extract it using a suitable JMeter Post-Processor and store it into a JMeter Variable
For the subsequent requests add the relevant header via HTTP Header Manager and use the value from step 2 as the header value.
Related
I am getting below error in jmeter performance testing
ERROR:
The token in the request does not match the one in the session!
Scenarios:
user logs into the appln
click on the modify user from the menu
search for the user
select the user
adding roles to the user
6.click submit
7.click on return to search button.
8.click on logout.
I am getting the csrf token in the post method and i captured the csrf token in 2 samples before in the GET method.I added regular expression in GET method and i used that regular expression variable in the Post method token.
Please let me know how to fix the token error.
Thanks,
It's hard to provide a comprehensive response without seeing network dump of requests from the real browser and from JMeter, most probably you need to extract the CSRF token from every response, not "2 samples before", try moving your Regular Expression Extractor to the same level as HTTP Request samplers - this way it will be applied to all of them and will extract the "fresh" CSRF token from each response. See JMeter Scoping Rules - The Ultimate Guide article for more information
As per Cross-Site Request Forgery Prevention Cheat Sheet
The site then requires that every transaction request include this pseudorandom value as a hidden form value (or other request parameter/header)`
The following guidance will demonstrate how to create overrides in JavaScript libraries to have CSRF tokens included automatically with every AJAX request for the state changing methods mentioned above.
CSRF tokens should be generated on the server-side. They can be generated once per user session or for each request.
I recording login with jmeter. I test with 1 user but jmeter cannot login because of __VerificationToken.
I parsed token with CSS Selector Extractor
I'm sure the token has been moved in the cookie.
But I saw two __VerificationToken. Error return request:
GET data:
Cookie Data:
ASP.NET_SessionId=xxxxxxxxxxxxxx;
__RequestVerificationToken=hYTIRJryyxCBfF7vYlAnkPSM-JB0o- Zp41pqFGk30cLyPAehA22k69VOU3NhY-abVbxuEZDgZHnF-bTFHf_4g1HwkuQ1;
__RequestVerificationToken=${token}
It's impossible to say what's wrong without seeing what parameters and headers does real browser send, however it seems you're doing something weird.
You shouldn't manually create the __RequestVerificationToken cookie as it seems to be properly handled by the HTTP Cookie Manager
Given you have the token value already stored in the HTTP Cookie Manager there is no need to extract it, if you need to send it as the parameter in the HTTP Request sampler you can add the next line to user.properties file:
CookieManager.save.cookies=true
and once you restart JMeter to pick up the property you will be able to access the token value as ${COOKIE___RequestVerificationToken} where required
More information: HTTP Cookie Manager Advanced Usage - A Guide
Performing a login and update user test with multiple users.
I have created a CSV file with 200 username and passwords. Running 200 threads
Performing login and update user, with 200 users.
I am extracting the value of csrf token in a variable after the login request. Then, I am passing that csrf variable in the user update, post request.
Running the same request with 100 users, I am able to log in and update the user's details.
Running the same request with 200 users.
getting the connection timeout exception.
Some of the update user post requests are getting failed because csrf variable is extracting the default values of CSS/JQuery extractor. CSRF token actual value is not getting extracted to the variable.
I have also added Authorization, Cookie, Cache and Header Manager in my test plan.
The constant timer is also being used after login request.
I have set the value of timeouts to 120000 in the HTTP request defaults. Even if I am increasing the timeouts, getting the same exception.
Most probably your application under test simply gets overloaded therefore it cannot respond in a timely fashion.
With regards to CSS/JQuery extractor which is failing to get CSRF token - my expectation is that the token is not present in the response for failing samplers.
So I would recommend taking the following troubleshooting steps:
Completely remove Connect and Response timeouts in the HTTP Request Defaults so JMeter will wait for response forever.
Configure JMeter to save responses for failed samplers by adding the next 2 lines to user.properties file:
jmeter.save.saveservice.output_format=xml
jmeter.save.saveservice.response_data.on_error=true
this way you will be able to see how does response look like for failing requests. See Results File Configuration User Manual chapter to learn what other metrics could be useful for your analysis.
Check your application and middleware (web/application/database server/load balancer logs)
Make sure to set up monitoring of baseline OS health metrics on the application under test side. You can do this using JMeter PerfMon Plugin
Just in case double check you're following JMeter Best Practices
I am testing particular application using JMeter 2.9.There My test plan is Thread group--> Transaction Controller.Inside that various recorded requests are there.I am using HTTP request defaults,HTTP Cookie manager and HTTP header manager,and a view result tree for validation.I found one token i.e. CSRF token to be correlated and I did correlation.But for a particular request I am finding "Session expired..Login again" response much before the logout request.My transaction flow is to Login--> Search a content-->Logout.
Please help me finding a solution.
Try put the element: HTTP Cookie Manager in Thread Group, first item.
the problem can be in the following areas:
-you were redirected automatically instead of following redirects
-login hasn't succeeded
-the session id has not been successfully passed on to the request after login
The JMeter documentation states this:
I've set up JMeter to sample the same URLs as my browser, why is JMeter not seeing the same responses?
There are various different reasons for this:
Cookies - make sure you added a Cookie Manager. Browsers process cookies unless you set them up otherwise, but JMeter does not process cookies unless you add a Cookie Manager.
User-Agent - the User-Agent is a header that is sent by browsers; it identifies the browser type. Some servers are sensitive to this setting and generate different results for what they think are different browsers. The Header Manager is used to add headers such as User-Agent.
Hidden fields - if you did not use the JMeter Proxy (or other application) to record the test plan, then it is easy to miss hidden fields from forms.
Dynamic field names/content - some servers use varying names for fields. So although the test plan may be correct at the time of creation, it does not work when replayed.
URL rewriting - TBA
from http://wiki.apache.org/jakarta-jmeter/DifferentBehaviour
I'm having a problem similar to the one in this post: JMeter; session cookie, but approached from a different angle.
The similarity is at the bottom of the post, where the OP writes:
How... can I set and submit a unique cookie for each user whose value is extracted from the first Response Header?
We're using JMeter for load testing, and need to have several users logged in to our email client at once. The way our website (and test plan) works is:
Enter username/ password, click Sign In.
Click Email.
Receive auth token (used for staying signed in to the email client) in a cookie.
Upon interaction with the email client (open a folder, mark an email as read, etc), send the auth token in the post body.
The problem is that the auth token is not getting stored as a value in such a way that it can be used in a POST request (and because the auth token is not sent as a cookie, we can't simply store it and send it with an HTTP Cookie Manager). The cookie is initially set like this:
AUTH_TOKEN=(long string of letters, numbers, and underscores); Domain=.ourdomain.net; Path=/
We've tried the following to extract the auth token value from the cookie:
Using a Regular Expression Extractor to extract the value from the response header of the "Click Email" step. We've tried two regular expressions; both simply cause JMeter to use the default auth token value when the test is run:
AUTH_TOKEN\=(\w+)\;
AUTH_TOKEN=([^;]+);
Defining the property "CookieManager.save.cookies=true" (as suggested by the user manual) and "CookieManager.check.cookies=false" (as suggested in this thread) in user.properties, then using "${COOKIE_AUTH_TOKEN}" in the post body.
With either or both of these in place, JMeter sets ${COOKIE_AUTH_TOKEN} as the auth token value in the post body.
We know that ${COOKIE_cookieName} is the correct format, as this has worked with other cookies that JMeter is storing.
I've read through a number of threads but none have dealt with this specific issue. I just started learning how to use JMeter a few weeks ago, so I'm not sure what to do here, and any help would be greatly appreciated. Thanks!
The problem was actually being caused by an incorrect request being sent to the server, to which it was then sending a blank response. Once we tore down and rewrote the entire test plan (what we were using was actually a modified version of another test plan) and had CookieManager.save.cookies=true in user.properties, we were able to use ${COOKIE_AUTH_TOKEN} and get the correct value.