I need to set a cookie before I issue a request to a Web site using Fiddler. How do I do this?
Simple...You need to set a header value, with your request, like so:
Cookie: YourCookieName=YourCookieValue
To do this using the FiddlerScript engine, add the following code into the onBeforeRequest method:
oSession.oRequest["Cookie"] = (oSession.oRequest["Cookie"] + ";YourCookieName=YourCookieValue");
This will preserve any other cookies that have been set.
You need to be more specific about what you're trying to do.
You can edit (or add) an outbound Cookie header to send a cookie to the website. You can do this either manually or via the FiddlerScript engine. But that doesn't "set" the cookie on the client-- it simply sends it to the server. If you want to set a cookie on the client, you either have to use another means, or you can inject a Set-Cookie response header on a previous response from the server, with the value you want to set on the client.
You can also use the Fiddler Composer.
Run Fiddler
Open the Composer Tab on the top.
It's easiest if you can start with another request from your web site. To do this capture a the request you want to modify, then drag it from the UI to the composer tab.
A good explanation is here: http://www.debugtheweb.com/Fiddler/help/composer.asp
Fiddler allows your to resend/rebuild an existing request. There is a Request Builder. While rebuilding in the RAW form, modify your cookies.
This solution is valid for Cookie based authentication:
If you want to test the API/url which have authentication enabled, please try following, i am showing for MVC web API on IIS server. usually there are more than 1 cookie responsible for authorization, so you may need to send more than 1 cookie in header as follows:
User-Agent: Fiddler Host: localhost:51000 content-Type: application/json Cookie : .ASPXAUTH=xxxxx;ASP.NET_SessionId=yyyy;__RequestVerificationToken=zzzz
When running Fiddler as a reverse Proxy you can modify the response headers
via FiddlerScript by adding a line in the OnBeforeResponse method:
static function OnBeforeResponse(oSession: Session) {
// ...
oSession.oResponse["Set-Cookie"] = "sessionToken=abc123; Expires=Wed, 09 Jun 2021 10:18:14 GMT";
}
Also check Fiddler docs about Modifying a Request or Response for more info.
Related
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
We have an authentication API for signing in and a file download API that serves protected files.
The authentication API lives at authentication.api.mysite.com and returns the following header on a successful sign-in:
Set-Cookie: sessionId=QpiYzBXNNhiMZQSdWfKiDM; SameSite=None; Secure; HttpOnly; Domain=.mysite.com
(I have also tried Domain=.mysite.com, i.e. with a leading dot, without luck.)
The file API lives at files.api.mysite.com and allows clients to download protected files given the following request header:
Cookie: sessionId=QpiYzBXNNhiMZQSdWfKiDM
The APIs are used by a web app that lives at something.othersite.com. In the browser dev tools, I see that the sign-in response has the cookie in the "Cookies" tab, so I know it's set. And the cookie is sent to other requests against the authentication API. But no cookies are sent in requests to the file API.
As I understand it (e.g. MDN), if Domain is set to mysite.com (or .mysite.com judging by some other sources) then it should also be sent to api.mysite.com and whatever.api.mysite.com. But it's not sent to other subdomains.
What are we doing wrong? How can we get the browser to pass the cookie set by the authentication API on to the file API?
In case it's relevant: Both APIs use CORS, set up to allow the specific host we're using (not wildcard), allow any method, allow any header, allow credentials, and expose a set of headers I don't think is relevant (Set-Cookie isn't included there, but it made no difference when we added it).
The cookie was correct; the problem was caused by how the front-end called the APIs. The front-end uses axios, and the solution was to use the withCredentials option, e.g.:
axios.post(
url,
data,
{ headers: headers,
withCredentials: true }
)
I'm using Postman to test and play with an API.
For the login url, the API requires sending a POST request with username and password as fields. I do this, and I get a 200 response with the message that I am logged in.
I then try another request to get user data. However, I get a response that I am not logged in.
I realized this problem is most likely because the cookie that is sent to me when I log in is not included in the next Postman request.
So my question is, how do I save and include cookies for future requests?
Store the cookie value you want to use in a global variable.In Tests tab of login request, write
postman.setGlobalVariable('key', postman.getResponseCookie("cookieName").value);
Pass along with the value in the Headers tab as a cookie in get user request:
Cookie | cookieName={{key}}
I tried using Ashutosh's answer but got an error. I'm guessing this is because Postman's scripting API changed?
At any rate, the following worked for me:
In the Tests tab of the request that will return cookies you want to save, write
pm.globals.set('<your key>', pm.cookies.get('<cookie name>'));
Then, as described in Ashutosh's answer, add the cookie to the headers by setting the key as cookie and corresponding value as <your cookie name>={{<global variable name>}};.
I found documentation for this at the Postman sandbox API reference.
(Using the native Postman app without the interceptor)
The traditional way of reading the cookie does not work for me pm.cookies.get('<cookie name>')
. Here is a workaround that automatically attaches auth cookie to all requests within a collection:
// The test scripts below run after the api /login returns the response
const authCookie = pm.response.headers.idx(3).value
/*
pm.response.headers.idx(3) is equal to:
{key: "Set-Cookie", value: "xs=eyJhb; Max-Age=3600; Path=/; Expires=Fri, 18 Dec 2020 04:40:34 GMT; HttpOnly; Secure; SameSite=None"}
*/
const token = authCookie.substring(3, authCookie.indexOf(';'))
pm.collectionVariables.set('xs_value', token);
Then add this pre-request scripts to the entire collection:
// Scripts below runs before any request within a collection is sent
const token = pm.collectionVariables.get('xs_value')
pm.request.headers.upsert({ key: 'Cookie', value: `xs=${token}` })
Enjoy!
More info on how to attach headers to requests
It seems there are two Interceptor plugin in google chrome. make sure install the correct one.
My CORS / XHR requests lacking the remember_xyz cookie in the request headers when i don't use the --disable-web-security option in chrome. If i enable that option the remember_xyz cookie will be included in the request headers and everything is working fine.
As workaround i'm currently sending the auth credentials via basic auth header. But i think that's not the intended or right way.
How can i get that remember cookie included in the request headers?
Edit:
In chrome's network console i can see the following:
(without --disable-web-security option in chrome)
The remember cookie is sent by laravel in the first response headers. But is not included in the next request's headers by angular. Why?
Every request has that OPTIONS preflight request before the actual request fires. Is it possible that the preflight request removes/breaks the cookie somehow?
(with --disable-web-security option in chrome)
The remember cookie is sent by laravel in the first response headers and will be sent in the next request's headers by angular. Everything is fine.
Edit 2:
Is it up to me to include the said cookie out of the response headers into the request headers? When yes, why i don't have to do this with "--disable-web-security" option enabled in chrome?
What i'm doing wrong?
Thank you!
Not sure I'm answering your question directly, but I'll take a stab. You DO need to set certain headers on the client side AND server for CORS.
The client needs to know to send the Cookie headers, or it will strip them out. For jQuery, this means setting the withCredentials parameter in your ajax call. See more info here. This sounds like the issue you are grappling with.
On the server side, you may need to ensure pre-flight requests are setup.
For instance, when I used CORS in Laravel 4, I had a filter to add some headers to each response:
App::after(function($request, $response)
{
// Note that you cannot use wildcard domains when doing CORS with Authorization!
$response->headers->set('Access-Control-Allow-Origin', 'http://dev.domain.local');
$response->headers->set('Access-Control-Allow-Credentials', 'true');
$response->headers->set('Access-Control-Allow-Headers', 'Authorization, X-Requested-With');
});
Within a controller, I also had an OPTIONS request respond for pre-flight requests. An example of that is:
public function optionsComplex()
{
$response = Response::make(null, 200);
$response->headers->set('Allow', 'GET, PUT, DELETE');
$response->headers->set('Access-Control-Allow-Methods', 'GET, PUT, DELETE');
return $response;
}
Hope that helps.
I'm having issues deleting client cookies with the cfcookie tag, I'm setting the value to "" AND changing the expiration date to now.
But I think it's resetting the cookie in the same page that it deletes it.
Is there a application (or addon for chrome,firefox) that can tell me where it's giving me cookies?
There's Fiddler, an application that logs all HTTP(S) traffic between your computer and the Internet.
1) Run Fiddler.
2) Open your site on the browser you use.
3) Look at the request and response headers on Fiddler. Any cookie set or delete will be there.
Other references:
Fiddler Can Make Debugging Easy. [September 12, 2006]
Fiddler Proxy and HTTP Debugging Tool [December 17, 2010]
As tiangoinu said, use Fiddler for Windows, or if you're on a mac, check out Charles Proxy.
As to your specific question, verify that you're not doing a redirect after you delete the cookie. In order for the cookie to be deleted on the client, the necessary HTTP headers need to be passed to the browser, and sometimes a cflocation will prevent those headers from being sent.
Yes, look at HTTPLive Headers for FireFox. Or some other type of intercept proxy to put between the browser and the server. You can then see the HTTP headers and try to determine where the cookies are being set (or at least how often).