Bug re:Google Calendar - Access blocked: KDE Event Calendar Widget’s request is invalid

[NeilPandya]

EDIT:

To those who end up here, @kanocz had submitted a pull request using golang to remedy our troubles! However, he recommends #345 since it doesn't require installing golang first. Check it out!

I've personally tested both methods on my system, and both work. For now, as per @kanocz's recommendation, I'm sticking with @gaganpreet's solution.

rm -rf ~/.local/share/plasma/plasmoids/org.kde.plasma.eventcalendar
sudo rm -rf /usr/share/plasma/plasmoids/org.kde.plasma.eventcalendar

git clone https://github.com/gaganpreet/plasma-applet-eventcalendar eventcalendar
cd eventcalendar
git switch google-calendar-fix
git pull
sh ./install

I will close the issue as soon as @Zren approves the pull request and merges.

And of course, thank you again @gaganpreet, @kanocz, and, of course, @Zren for working on this problem.

Hi @Zren,

Thanks for your work on this great widget.

I have a small problem with the Google Calendar integration. Upgraded from Kubuntu 20.04 LTS to 22.04 LTS recently.

Tried to sync my Google Calendar account with Event Calendar like I had set up on my previous version of the Kubuntu distro, and the following error was thrown after the applet launched my web browser.

I have v76 installed.

Access blocked: KDE Event Calendar Widget’s request is invalid

You can’t sign in because KDE Event Calendar Widget sent an invalid request. You can try again later, or contact the developer about this issue. Learn more about this error
If you are a developer of KDE Event Calendar Widget, see error details.
Error 400: invalid_request

Error 400: invalid_request
The out-of-band (OOB) flow has been blocked in order to keep users secure. Follow the Out-of-Band (OOB) flow Migration Guide linked in the developer docs below to migrate your app to an alternative method.
Request details:
redirect_uri=urn:ietf:wg:oauth:2.0:oob
Related developer documentation

I went to my google account to make sure KDE wasn't already a Third-party app with account access, potentially causing an issue causing overlapping authentication parameters. Removed KDE, and tried again. Still threw the same error.

Any related open or closed issues in the repo to help me sus out a solution?

Thanks in advance,

Neil

System Specs:

        a8888b.           Host        -  neil@FractalNorth                       
       d888888b.          Machine     -  ASUS System Product Name Version        
       8P"YP"Y88          Kernel      -  6.8.0-48-generic                        
       8|o||o|88          Distro      -  Ubuntu 24.04.1 LTS (Noble Numbat)       
       8'    .88          DE          -  KDE                                     
       8`._.' Y8.         WM          -  KWin (X11)                              
      d/      `8b.        Packages    -  2463 (dpkg), 14 (cargo), 20 (flatpak)   
     dP        Y8b.       Shell       -  bash                                    
    d8:       ::88b.      Terminal    -  konsole                                 
   d8"         'Y88b      Resolution  -  1920x1080, 1920x1080                    
  :8P           :888      Uptime      -  24m                                     
   8a.         _a88P      CPU         -  AMD Ryzen 9 5950X 16-Core Processor (32)
 ._/"Yaa     .| 88P|      CPU Load    -  1%                                      
 \    YP"    `|     `.    Memory      -  5.0 GB / 32.8 GB                        
 /     \.___.d|    .'     GPU         -  GA102 [GeForce RTX 3090]                
 `--..__)     `._.'                                                                                                   

[dark-eye]

Same here with v76

[txhammer68]

same here, I removed default plasma panel and replaced with latte panel; tried to setup event calendar and received same message about OOB
manjaro kde plasma
plasma 5.24
event cal v 76

thanks for creating such as great widget hope it gets updated soon.

[ksgremes]

To anyone that ends up here, I was able to circumvent this by using an old access token (from a configuration file in a previous installation I had in my disk), previously granted tokens should still work

The configuration is in: ~/.config/plasma-org.kde.plasma.desktop-appletsrc

In there you can search for "Google Calendar" and paste the token information. Then log out and back in

[NeilPandya]

To anyone that ends up here, I was able to circumvent this by using an old access token (from a configuration file in a previous installation I had in my disk), previously granted tokens should still work

The configuration is in: ~/.config/plasma-org.kde.plasma.desktop-appletsrc

In there you can search for "Google Calendar" and paste the token information. Then log out and back in

@ksgremes Thanks for the tip! I'll try this out and see if it's successful!

[amr537]

Same here. It seems that google remove access to the oauth method use by this widget. This is the detailed message tht is shown to me:

Access blocked: Third-party app is using an unsupported OAuth method

Google has safe ways for users to sign in and share their Google Account data with third-party applications. To help protect your account, Google sign-in requests are blocked from apps with less secure authorization methods because they’re more vulnerable to phishing and app impersonation attacks.

https://support.google.com/accounts/answer/12379384

Event Calendar v76
Operating System: Kubuntu 22.04
KDE Plasma Version: 5.24.6
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3
Kernel Version: 5.15.0-52-generic (64-bit)
Graphics Platform: X11

thanks for creating such as great widget 👍 😄

[cocoepiblas]

Thanks for your help. In a previous installation I had in my disk with Manjaro, Event Calendar v.72 work with Google Calendar, but this token does not appear. Event Calendar is not the last version, and each version stores these data in a different way.

[cocoepiblas]

To anyone that ends up here, I was able to circumvent this by using an old access token (from a configuration file in a previous installation I had in my disk), previously granted tokens should still work
The configuration is in: ~/.config/plasma-org.kde.plasma.desktop-appletsrc
In there you can search for "Google Calendar" and paste the token information. Then log out and back in

@ksgremes Thanks for the tip! I'll try this out and see if it's successful!

What is your Event Calendar's version?

[cocoepiblas]

To anyone that ends up here, I was able to circumvent this by using an old access token (from a configuration file in a previous installation I had in my disk), previously granted tokens should still work
The configuration is in: ~/.config/plasma-org.kde.plasma.desktop-appletsrc
In there you can search for "Google Calendar" and paste the token information. Then log out and back in

@ksgremes Thanks for the tip! I'll try this out and see if it's successful!

What is your Event Calendar's version?

[federidos]

Same problem
Operating System: Ubuntu Studio 22.10
KDE Plasma Version: 5.25.5
KDE Frameworks Version: 5.98.0
Qt Version: 5.15.6
Kernel Version: 5.19.0-1009-lowlatency (64-bit)

I cannot gain access also. Google access is denied.
"Access blocked: KDE Event Calendar Widget’s request is invalid"
Event Calendar version 76
Kubuntu 22.04
KDE Plasma Version: 5.24.6
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3
Kernel Version: 5.15.0-52-generic (64-bit)

[DimitriBolt]

Thanks, works

To anyone that ends up here, I was able to circumvent this by using an old access token (from a configuration file in a previous installation I had in my disk), previously granted tokens should still work

The configuration is in: ~/.config/plasma-org.kde.plasma.desktop-appletsrc

In there you can search for "Google Calendar" and paste the token information. Then log out and back in

[ksgremes]

What is your Event Calendar's version?

Currently I'm using version 76. I assume that's what was on my disk before as it was a fairly recent install as well (but I cannot confirm it)

[cocoepiblas]

What is your Event Calendar's version?

Currently I'm using version 76. I assume that's what was on my disk before as it was a fairly recent install as well (but I cannot confirm it)

Thanks. I have two linux installations on my computer; Manjaro and Neon. In Manjaro runs Google Calendar in Event Calendar (EC) v.72, in Neon I had EC v.76, I removed the plasmoid in Neon and when I put it back I could not authenticate in Google... but in both distributions, my ~/.config/plasma-org.kde.plasma.desktop-appletsrc file does not reference any token.

[trm109]

https://developers.google.com/identity/protocols/oauth2/resources/oob-migration

It looks like EventCalendar's method of getting auth has been deprecated.

[drmhessler]

As a quick fix till an appropriate upgrade from Zen, simply store suitable google credentials (client and token) in source file main.xml, and make a fresh installation. Happy installing.