Clicking "Show token" in "Status information" displays "null"

[kcgthb]

Summary

The authentication token is not displayed when clicking on "Show token" in "Status information" panel. It is displayed as "null" instead :

Please note that the status correctly says "Authenticated!", as the correct token is passed as a URL parameter in http://localhost:8888/index.html?mwi_auth_token=mytoken. The server is started with:

$ env MWI_APP_PORT=8888 MWI_APP_HOST="0.0.0.0" MWI_ENABLE_TOKEN_AUTH="True" MWI_AUTH_TOKEN="mytoken" matlab-proxy-app

Browser(s) used

Chrome, Firefox

Script output

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                     MATLAB
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

matlab - /share/software/user/restricted/matlab/R2022b/bin/matlab OK

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                matlab-proxy-app
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

matlab-proxy-app - /share/software/user/open/py-matlab-proxy/0.9.1_py39/bin/matlab-proxy-app OK

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                           Python and pip executables
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

python - /usr/bin/python OK

Python 2.7.5

pip - /share/software/user/open/python/3.9.0/bin/pip OK

pip 23.3.1 from /share/software/user/open/python/3.9.0/lib/python3.9/site-packages/pip (python 3.9)

python3 - /share/software/user/open/python/3.9.0/bin/python3 OK

Python 3.9.0

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                      Xvfb
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Xvfb - /share/software/user/open/x11/7.7/bin/Xvfb OK

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                 OS information
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Linux
3.10.0-1160.92.1.el7.x86_64
Linux-3.10.0-1160.92.1.el7.x86_64-x86_64-with-glibc2.17
uname_result(system='Linux', node='sh03-ln05.stanford.edu', release='3.10.0-1160.92.1.el7.x86_64', version='#1 SMP Tue Jun 20 11:48:01 UTC 2023', machine='x86_64')


-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                               Conda information
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

conda - None

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                               Installed packages
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

/usr/bin/python: No module named pip

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                             Environment variables
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

__LMOD_STACK_MATLABDIR=L3NoYXJlL3NvZnR3YXJlL3VzZXIvcmVzdHJpY3RlZC9tYXRsYWIvUjIwMjJi
MATLABPATH=/share/software/user/restricted/matlab/R2022b/toolbox/local/sherlock
MATLABDIR=/share/software/user/restricted/matlab/R2022b
__LMOD_STACK_MATLAB_JAVA=L3NoYXJlL3NvZnR3YXJlL3VzZXIvcmVzdHJpY3RlZC9tYXRsYWIvUjIwMjJiL3N5cy9qYXZhL2pyZS9nbG54YTY0L2pyZQ==
__LMOD_STACK_MATLABPATH=L3NoYXJlL3NvZnR3YXJlL3VzZXIvcmVzdHJpY3RlZC9tYXRsYWIvUjIwMjJiL3Rvb2xib3gvbG9jYWwvc2hlcmxvY2s=
MATLAB_PREFDIR=/lscratch/kilian/.matlab
MATLAB_JAVA=/share/software/user/restricted/matlab/R2022b/sys/java/jre/glnxa64/jre
__LMOD_STACK_MATLAB_PREFDIR=L2xzY3JhdGNoL2tpbGlhbi8ubWF0bGFi

[prabhakk-mw]

@kcgthb could you share which version of MATLAB proxy you are using?

[kcgthb]

Sure! It's 0.9.1

[krisctl]

Thanks for trying out matlab-proxy, @kcgthb!

Can you confirm if this issue is recoverable? For example, does the token start to show up if you click Hide token and then click View token once after null is displayed? This data point will help me to debug this issue faster. Thanks!

[kcgthb]

Thanks!
As far as I can tell, when this happens, clicking alternatively on "hide token" and "view token" doesn't change the end result, the value displayed is always "null".

[krisctl]

Thanks for the information! I have been trying various scenarios to reproduce this locally and have largely been unsuccessful. To further diagnose this issue, I would require some more information from your end.

1. Can you please share some details about your setup/environment? Is it configured in any special way? What is your use case and workflow etc?
2. Please run the below steps to capture a specific HTTP request that gets sent out when you click the View token link.

• Follow the regular workflow to launch matlab-proxy with token authentication enabled and click the URL displayed from where you launched matlab-proxy.

• On Chrome browser, click the Three-dot menu button to the right of the address bar and select More Tools > Developer Tools.

• Select the Network tab.

• Type get_auth_token in the text box under the Network tab.

• On the Status information (where you see the View token link), click View token.

• Verify that the get_auth_token request shows up in the network tab.

• Verify that the response for get_auth_token contains your auth token. Please share the response, headers, etc for this HTTP request as well.

Thank you and looking forward to your response.

[kcgthb]

Thanks for the instructions!
I actually haven't been able to reproduce it after some tries, and so far it looks like it may have been related to a local cookies issue. I'm going to close this for now and will make sure to capture HTTP requests and provide them here if I see this happening again. Thanks!