Exist a Gmail Rest API in order to search by the users messages of a particular domains mailboxes?
A practical example is that a backend service after authentication via OAuth can search messages in different domains mailboxes of others users.
I'm not able to find the right Google API for perform this type of research.
Someone know a solution for this ?
There is no concrete way to search across all mailboxes in a domain. You would need to enumerate the mailboxes (e.g. using the admin SDK directory API), then for each one perform the search there. Obviously, your app will need permissions to query admin SDK to get list of users in the domain and then permissions for each individual mailbox--the easiest way is to setup a service account and get it whitelisted for the entire domain for those scopes in domain cpanel. See:
https://developers.google.com/accounts/docs/OAuth2ServiceAccount#formingclaimset
For more info about how to do the auth domain-wide which can be used with the Gmail API.
Related
I want to send emails using python on GAE, so edited "Email API authorized senders" in:
https://console.developers.google.com/project/MY_PROJECT/appengine/settings
under "Email API authorized senders", I added support#mydomain.com (where mydomain.com is registered via google domain, and linked to MY_PROJECT)
I got a message saying I don't have enough privilege to make this change. Any idea why? Thanks so much.
The documentation says
All email addresses on the Email API Authorized Senders list need to
be valid Gmail or Google-hosted domain Accounts. There are
restrictions on who can add whom to the Email API Authorized Senders
list:
Application administrators can add themselves
Application administrators for applications hosted in a Google Apps domain can add
noreply#domain.com, as long as noreply#domain.com is a valid account
Domain administrators of domains managed by Google Apps can add any
user in their domain
So you would need to be a Google Apps admin and the user you're trying to add must also exist in Google Apps. Sadly the documenation doesn't mention groups in the Apps domain which would be quite useful.
I am trying to perform server-side OAuth so I can use a specific user account in my domain to send emails (hence using GMail API) via my application.
Mine is a purely server-side app and I cannot perform "user consent" via a UI.
I have created a project in Google App Engine and have obtained service account credentials (P12 key).
My code looks like this -
new GoogleCredential.Builder()
.setTransport(httpTransport)
.setJsonFactory(JSON_FACTORY)
.setServiceAccountId(googleEmailerServiceAccountId)
.setServiceAccountPrivateKeyFromP12File(new File(googleEmailerServiceAccountPrivateKeyLocation)).setServiceAccountScopes(Collections.singleton(GmailScopes.GMAIL_COMPOSE))
.setServiceAccountUser("xxx#xxx.com")
.build()
I have delegated domain wide access to the application (for GMAIL COMPOSE scope) via the admin console as per https://developers.google.com/identity/protocols/OAuth2ServiceAccount.
And I still get an Unauthorised 401 when I try to send emails from my app.
Since there is no explicit documentation for the Gmail API that says it allows domain wide delegation, I am guessing it is not allowed for Gmail.
Is there any way of achieving this programatically?
Any idea would be much appreciated.
Thanks!
As far as I know you cant use a service account with Gmail. Service accounts must be pre authorized.
Authorizing Your App with Gmail
All requests to the Gmail API must be authorized by an authenticated
user. Gmail uses the OAuth 2.0 protocol for authenticating a Google
account and authorizing access to user data. You can also use Google+
Sign-in to provide a "sign-in with Google" authentication method for
your app.
Share a Google drive folder with the Service account. Add the service account email as a user on a google drive folder it has access
Share a Google calendar with the service account, just like any other user.
Service accounts don't work on all Google APIs. To my knowledge you cant give another user access to your Gmail so there will be now to pre authorize the service account.
Recommendation / work around / hack
Create a dummy app using the same client id, authenticate it get the refresh token then use the refresh token in your application.
I have an appengine app that stores documents in a Google Docs account. It uses the Documents List API to communicate with Google Docs but I am now trying to migrate it to use the Drive API as the Documents List API is supposed to be shutdown on 4/20.
I would like to know if I need to grant any special permissions for my appengine app to be able to access the Drive account and read/write documents from it. i.e., do I need to add a row on this screen?
The Google Docs account under which files are stored by my current app is of the form user#xyz.com where xyz.com is a domain name that I purchased through Google and that is aliased to my appengine app. Further user#xyz.com is an owner of my appengine app.
Yes.
Delegate domain-wide authority to your service account
In the Client name field enter the service account's Client ID.
In the One or More API Scopes field enter the list of scopes that your application should be granted access to (see image below). For example if you need domain-wide access to the Google Drive API and the Google Calendar API enter: https://www.googleapis.com/auth/drive, https://www.googleapis.com/auth/calendar
Click the Authorize button.
Your service account now has domain-wide access to the Google Drive API for all the users of your domain, and potentially the other APIs you’ve listed such as the Calendar API in the example above. You are ready to instantiate an authorized Drive service Object on behalf of your Google Apps domain's users.
When you make the calls, you will have to impersonate the user whose account you want to access, i.e. user#xyz.com
I am the admin of a Google domain and I need to he able to read users emails in my php app. How is this possible? I have tried to use IMAP but it won't even connect. Is there something special that apps have to do?
Here is a list of all the ways to read a user's Gmail mailbox, outside of App Engine :
IMAP, as you said. Provided it is enabled on your domain. Most of our customers disable it for security reasons (no audit trace of the connections).
Apps Script, but it requires the user's consent, even if you're an admin
The Email Audit API, but an Email extraction takes approximately 2 weeks (no kidding)
If IMAP is enabled on your domain, then it's the best choice. However, by default GAE does not allow outgoing connections apart from HTTP requests. The workaround for this limitation is the Sockets API, currently in preview. You can check it out here.
Note that you will also need to use an OAuth2 service account (domain-wide delegation) and IMAP-XOAuth2 to authenticate with the IMAP protocol.
We are using UserService with OpenId to send emails on behalf of the logged in user.
As we want to move to OAuth2/OpenID Connect for login to comply with the new marketplace guideline I'd like to know if it is possible to use App Engine's MailService with OAuth2 / service accounts to be able to send emails on behalf of the user.
I know that it is possible to send emails using the old GMail API, but then we are stuck with the daily GMail limits which are far too low for our usecase.
You can use the current GMail api via OAuth 2 and you can impersonate users with Service Accounts. There isn't a specific example for Gmail + Service accounts but Drive has good documentation that you should be able to extrapolate. If the quota limits are unmanageable, than you'll need to evaluate IMAP if you want a Google-powered solution.