Konstantin Sykulev
87bb4090a8
**Related issue:** Resolves #43456 # Checklist for submitter If some of the following don't apply, delete the relevant line. - [x] Changes file added for user-visible changes in `changes/`, `orbit/changes/` or `ee/fleetd-chrome/changes`. See [Changes files](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/guides/committing-changes.md#changes-files) for more information. - [x] Input data is properly validated, `SELECT *` is avoided, SQL injection is prevented (using placeholders for values in statements), JS inline code is prevented especially for url redirects, and untrusted data interpolated into shell scripts/commands is validated against shell metacharacters. ## Testing - [x] Added/updated automated tests - [x] Where appropriate, [automated tests simulate multiple hosts and test for host isolation](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/reference/patterns-backend.md#unit-testing) (updates to one hosts's records do not affect another) - [x] QA'd all new/changed functionality manually ## Database migrations - [x] Checked schema for all modified table for columns that will auto-update timestamps during migration. - [x] Confirmed that updating the timestamps is acceptable, and will not cause unwanted side effects. - [x] Ensured the correct collation is explicitly set for character columns (`COLLATE utf8mb4_unicode_ci`). <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **New Features** * Android MDM profiles now include content checksums; devices are re-synced only when profile content changes, reducing unnecessary deliveries. * **Migrations** * Database schema updated to add and backfill checksum fields for Android configuration and host profiles. * **Tests** * Added and updated tests to validate checksum generation, backfill, and behavior in profile delivery scenarios. <!-- review_stack_entry_start --> [](https://app.coderabbit.ai/change-stack/fleetdm/fleet/pull/46276?utm_source=github_walkthrough&utm_medium=github&utm_campaign=change_stack) <!-- review_stack_entry_end --> <!-- end of auto-generated comment: release notes by coderabbit.ai -->
The MDM Android package attempts to decouple Android-specific service and datastore implementations from the core Fleet server code.
Any tightly coupled code that needs both the core Fleet server and the Android-specific features must live in the main server/fleet, server/service, and server/datastore packages. Typical example are MySQL queries. Any code that implements Android-specific functionality should live in the server/mdm/android package. For example, the common code from server/datastore package can call the android datastore methods as needed.
This decoupled approach attempts to achieve the following goals:
- Easier to understand and find Android-specific code.
- Easier to fix Android-specific bugs and add new features.
- Easier to maintain Android-specific feature branches.
- Faster Android-specific tests, including ability to run all tests in parallel.