DSU installation service fetches a key revocation list (key blacklist).
Revocation list is a https URL specified in a resource string.
Fetched result is cached in HttpResponseCache to save bandwidth, and the
cached result is always forced validated with server to ensure freshness.
In other words, fetching a revocation list is done via a "conditional GET",
such http GET returns a brief (304 NOT MODIFIED) response if ours cache is
still valid, else the server sends a (200 OK) response with new data.
TODO: Compare the installed DSU image's public key with the revocation
list and boot-ramdisk. If the public key is revoked then abort installation.
Bug: 128892201
Test: atest DynamicSystemInstallationServiceTests
Test: adb shell am start-activity \
-n com.android.dynsystem/com.android.dynsystem.VerificationActivity \
-a android.os.image.action.START_INSTALL \
--el KEY_USERDATA_SIZE 8589934592 \
-d file:///storage/emulated/0/Download/aosp_arm64-dsu_test.zip \
--es KEY_PUBKEY key1
Change-Id: I29ae088acb1bd23336ec09654f38b4fc464316d8
Rename "Android On Tap" to "Dynamic System Updates".
And, some string changes to follow review suggestions.
Bug: 129100345
Bug: 129330026
Test: make the package
Change-Id: I440e5beaa3831814d2f7f1063be16d073c5f2c38
Some changes to follow string review suggestions:
- Simplify some messages.
- Replace 'Reboot' with 'Restart'.
- Notification action button order: 'Restart' button on the right.
Bug: 129100345
Test: verified with test app
Change-Id: I1ee97b0adbf74add68d3561fc647dc4923ee7237
Some API changes per API reivew:
- Move DynamicAndroidClient and ~Manager to android.os.image.
- Rename them to DynamicSystemClient and ~Manager.
- Rename permission MANAGE_DYNAMIC_ANDROID to MANAGE_DYNAMIC_SYSTEM
- Corresponding changes in the installation service.
- Corresponding changes in privapp-permissions-platform.xml.
- Add missing annotations.
- Change setOnStatusChangedListener's parameters order.
- Improve documentations.
- Re-generate api/system-current.txt.
Bug: 126613281
Test: adb shell am
Change-Id: Ia920e9ccf6de1dbbd38c52910cb72cb81b9b5b32
