OAuth Scopes Handoff

Owned by Douglas Hall (Deactivated)
Last updated: Jun 29, 2018
1 min read

Enterprise Issue Resolved

Enterprise API client code in LMS making an API call to an enterprise endpoint on LMS was failing because the JWT in the request was failing validation due to an incorrect  JWT_AUTH['JWT_ISSUERS'] list in settings.

ENT-1080 - Getting issue details... STATUS

Instructions for testing this are in the Jira ticket above.

PR that fixed it: https://github.com/edx/configuration/pull/4656

Credentials Issue Resolved

Discovery service API client code in Credentials received a JWT with invalid issuer and audience claims signed with an incorrect secret. This was due to a configuration bug in LMS settings (LMS is the authz service). Also, JWTs are cached in memcached by the API client code for the life of the token (1 day).

https://credentials.stage.edx.org/credentials/3446ff661f044df785afcc44bcab2cf8/

DEVOPS-7598 - Getting issue details... STATUS

Visit the credentials link above to verify that this is working on stage.

PR that fixed it: https://github.com/edx/configuration/pull/4654

Also we needed to clear the invalid cached JWT by having DevOps run the following from a stage credentials machine:

python manage.py shell --command="from django.core.cache import cache; cache.delete('siteconfiguration_access_token_1')"

PRs related to OAuth Scopes Work

Initial implementation: https://github.com/edx/edx-platform/pull/18429

Unmerged revert PR (in case you need it): https://github.com/edx/edx-platform/pull/18484

Testing JWT creation

  1. Create an Application model.
  2. Create an ApplicationAccess model with "grades:read" and "certificates:read" scopes.
  3. Create an ApplicationOrganization model.

curl --header "Content-Type: application/x-www-form-urlencoded" \ --request POST \ --data 'grant_type=client_credentials&client_id={Application.client_id}&client_secret={Application.client_secret}&token_type=jwt&scope=grades%3Aread' \ https://{LMS_HOST}/oauth2/access_token

Use https://www.base64decode.org/ to decode the middle third (part between the first and second periods) of the access_token received:

Example access_token:

eyJhbGciOiJIUzI1NiJ9.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.C3HLfQQYPLgy-2S-zGCZGi5UQJ7okTNm9bBYByuVXvM