I'm using Google Apps Script UI to create forms for students at my school. I've restricted access to my domain for added security, and to capture users' email addresses.
The problem is that many of our students have separate Gmail accounts. If they are already logged into Gmail (not our domain), they don't get a log-in page, but something prompting them to request access.
Any suggestions for avoiding this?
Thought I saw a request in the issue tracker for an account choosing feature, but my guess is that you'll want to allow anyone to access your web app and show a custom prompt if their email is non-domain. I don't know how well this would work with shared computers, but creating separate Chrome user accounts for each of my Google accounts has solved all my multiple sign-in pain.
Related
So the issue is that sometimes users end up getting endless Authorisation Screens even after approving authorization.
This happens because of the multiple-user login sessions issue in the Google Apps script "https://issuetracker.google.com/issues/69270374" which somehow mix the account approving the authorization and executing the script.
I have tried the methods found on the issue page so far like these
https://apps.myrout.es/msii
https://sites.google.com/site/scriptsexamples/home/announcements/multiple-accounts-issue-with-google-apps-script
Most of them are relevant to Add-ons not for web apps as I don't see a possibility to compare user emails.
Gone through these questions here but none of them have any references which can be used to find a workaround for web-apps
I can't open my Web App Link on Google App Scripts when multiple Gmail accounts logged in
Google Web App Multiple Google Accounts Error
At the moment I want to determine whether the user is having multiple users logged in and ask them to log out(will provide a link to log out) and log in with a single account instead.
Is there a way to handle it?
Thanks
GmailApp.search is great for pulling emails but what if I want to access a specific Gmail account logged in or not logged in is this possible with GmailApp or maybe some other method I am unaware of? Or am I forced to use the email address the user is logged in?
Due to security and privacy concerns, GmailApp service as well as the rest of the services provided by Google Apps Script and Google REST APIs can only access the logged-in user's data. In order to access another user's data, he/she will have to manually log in using the oAuth2 flow. As an option, you may create a WebApp that the end-user would connect to and manually authorize your application to be run using his/her data.
90% of my Google Apps Script/HTMLService web app is available to anonymous users, however user must be signed in with G-Suite account in order to access the remaining 10%.
Desired behavior is that if user is already logged in to G-Suite (e.g. read Gmail from that browser), the web app recognizes the user without prompting to log in again – as if you went to Google Calendar just after reading Gmail. If user isn’t logged in yet – he needs to be prompted to log in using #my_g-suite.com account when accessing the restricted features.
My first try was two app approach: one published as “available to anyone including anonymous” and another “available to members of the my_g-suite.com”. The problem with this approach is that 2nd app only shows log in screen if browser has no google identity. If user is logged in to regular, non-g-suite gmail, strange google Driver error is shown instead of login prompt. I posted question about this a while ago, no solution.
So instead I implemented a sign-in button using this guide. Behavior I’m seeing is not what I expected:
If user is already signed in with UserOne#my_g-suite.com prior to accessing the app (e.g. looked at G-Suite email account), Session.getActiveUser() on server side returns correct user ID, however googleUser.getBasicProfile().getEmail() on client has nothing.
If user has not signed in with G-Suite ID using prior to accessing the app and then signs in using the Sign In button on web app, googleUser.getBasicProfile().getEmail() returns correct user ID, however ), Session.getActiveUser() on server side returns nothing.
If user has signs in using the button as UserTwo#my_g-suite.com, no other G-Suite app recognizes it. So if user then signs in to UserOne#my_g-suite.com and comes back to the app, Session.getActiveUser() says it’s UserOne#my_g-suite.com and googleUser.getBasicProfile().getEmail() says it’s UserTwo#my_g-suite.com. Two conflicting identities simultaneously.
How do I make sign-in into my app be 1) seamless with other G-Suite services rather than having completely separate, app-only 2nd identity and 2) restricted to #my_g-suite.com?
Following #TheMaster advice I tried this:
Created a Google Sites site "login.my_g-suite.com" which is only available to g-suite users and has a single page which says "you are logged in to g-suite"
In my web app which runs as "me" and is "available to everyone, even anonymous", I implemented a check if Session.getActiveUser() is g-suite user. If not, I do window.open("https://login.my_g-suite.com") which opens log-in screen in the new tab as expected.
After user logs in, I reload web app. And here's the sad part:
If browser hasn't been used for non-G-Suite account (like regular Gmail) - all works great. Session.getActiveUser() shows newly logged in user ID
BUT if that browser has been logged in to non-G-Suite account, Session.getActiveUser() has no idea about the fact that I just logged in G-Suite in another tab (even after reloading web app). Which is back to square one.
Comparing this to Google's own apps, this behavior is not much different: e.g. if you read regular non-g-suite gmail, then go and log in to Google drive using G-Suite account, and then reload gmail - it doesn't take you to G-Suite Gmail automatically just because you logged in to G-Suite account on that browser. You need to explicitly tell Gmail that you want to use G-Suite account by invoking active-account-selection menu (round avatar icon on the right upper corner).
Looks like no matter what approach I take, I hit the same wall: the need to tell stand-alone Google App Script which Google identity is current. And I don't see any way of doing that.
What I stated above is no longer true due to recent change by Google. (2) now results in Error 404 instead of login screen.
Sign-in issues which a few days ago were only affecting stand-alone Google App Script apps now are plaguing entire G-Suite. Our volunteer first-responder organization got G-Suite mainly for the secure intranet site (members.my_g-suite.com) where we share internal protocols and documentation. It's built on new Google Sites and Google Team Drive. Before Wednesday attempt to access members.my_g-suite.com used to take to G-Suite login screen. Now it takes them to "404. That’s an error. The requested URL / was not found on this server. That’s all we know.". The only workaround is to force users to log out of personal Gmail each time before accessing G-Suite, which is not a reasonable request for a volunteer using personal device. We feel like Google pulled the rug from under our feet. The only hope is that this is a temporary change and they'll revert it to how it was in the beginning of the week. We also confirmed that this change is not limited to our G-Suite.
This is because your web-app runs inside a iframe. You can force login by denying access to the web-app manually.
onload, Check Session.getActiveUser().getEmail() server side and see if it matches your domain,
If it does, proceed to load your actual web-app
If not, just provide the information that the user needs to login to your gsuite to access.
You can also
Proceed to open https://admin.google.com (or any url specific to your domain) in a another tab
See whether it's open and use setInterval to check the other window.close property. When closed, reload your web-app.
I have received email from Google with subject: [Action Required] Submit your app(s) for Restricted Scopes OAuth verification,
same as many of you.
I'm using GAS only for developing applications for my personal use - not for public. Applications such as sending summary emails to my clients, when they buy a product from my web pages.
Do I have to go through the whole process of verification?
Do I have to create public Terms of Service?
Is there any way how I can explain to google, that my applications are not used by anybody else then by
me?
How to get to know for sure that my app won't stop?
I have read through FAQ (https://support.google.com/cloud/answer/9110914) and many other documents by google about this topic..
I have checked similar questions found on web, but with no luck of answers.. It looks it's pretty new experience for all of us..
Thank you for any advices.
I have personal account, so I can't use "internal apps" selection, this works only for paid G-suite customers which I'm not.
EDIT:
As Yoel Vinitsky stated, app doesn't need verification if it has only one user.
Here at bottom: https://support.google.com/cloud/answer/7454865 is table which shows that there is quota 100 new users in total, once the app presents the unverified app screen.
It seems like that I don't have to worry about verification of my apps at all, because I'm the only one user or maybe I use this app from 2 or 3 more users emails so it should be ok, my question is, is it going to be ok without verification, or not?
EDIT 2:
Google sent clarification email:
NO ACTION is required if:
Only owners use the project: If the project is only used by owners of the project, no action is required.
To determine whether you are an owner (versus an editor or viewer), follow these steps:
Click the project link above to navigate to its OAuth Consent Screen
configuration page.
Click the Navigation Menu button in the
upper-left corner, select IAM & admin, and click IAM. This will show you all project contributors and their roles.
The project doesn’t have users outside of your G Suite domain:If the project owner is using a G Suite account and the project is only used by Google Accounts in the project owner’s domain, no action is required (learn more here).
But the question is how to avoid verification with personal accounts for my own scripts used only by me?
As mentioned in the support FAQ You linked to:
When can I skip publishing my app for a review?
You do not need to request for verification if your app is
going to be used in any of the following scenarios:
1) The app is not shared with anyone else.
2) The app is used to send emails through WordPress, or
3) similar single account SMTP plug-ins.
The only drawbacks should be the warning that your app is unverified and maybe quota limits.
For users that are logged into multiple accounts, how can a script let the user pick an account? For example, Gmail, Google Drive, etc. provide a way for the user to select which account to use with a selectable option on the top-right of the page:
How can developers implement a similar mechanism?
There seems to be no way to do that with Google Apps Script libraries - GAS just uses the current primary account. Also, unfortunately, the API Client Library and thus Google Sign-In for websites don't work inside GAS web apps because of the sandbox frame. You could write your own or use some existing OAuth implementation to authenticate with Google but I found a much much simpler solution using Auth0 Lock with only a Google Connection (using the popup method because the redirect method doesn't work within the sandbox frame).
With Chrome Version 70.0.3538.102. You may resolve your issue (at least i did)
Now i make sure i ONLY signed in ONE account at a time. Then use "manage people"
if i have 3 google accounts, i will create 3 people and each time you only have 1 active google account session. With this setup, i ensured everytime my script only execute with my G Suite user instead of #gmail accounts
You can try using the Directory API to work with Apps Script. Retrieve the user using:
GET https://www.googleapis.com/admin/directory/v1/users/userKey.
You can then make an interface that displays the user accounts details(Name, email,etc).