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Enforce no capability downgrade on device verification

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This commit is contained in:
Jon Chambers
2020-09-04 18:06:05 -04:00
committed by Jon Chambers
parent e7572094b5
commit 2c6b646d87
4 changed files with 35 additions and 8 deletions
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10
service/src/main/java/org/whispersystems/textsecuregcm/controllers/DeviceController.java
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@@ -190,6 +190,11 @@ public class DeviceController {
throw new DeviceLimitExceededException(account.get().getDevices().size(), MAX_DEVICES);
}
final DeviceCapabilities capabilities = accountAttributes.getCapabilities();
if (capabilities != null && isCapabilityDowngrade(account.get(), capabilities)) {
throw new WebApplicationException(Response.status(409).build());
}
Device device = new Device();
device.setName(accountAttributes.getName());
device.setAuthenticationCredentials(new AuthenticationCredentials(password));
@@ -235,4 +240,9 @@ public class DeviceController {
int randomInt = 100000 + random.nextInt(900000);
return new VerificationCode(randomInt);
}
private boolean isCapabilityDowngrade(Account account, DeviceCapabilities capabilities) {
return (!capabilities.isGv2() && account.isGroupsV2Supported())
|| (!capabilities.isUuid() && account.isUuidAddressingSupported());
}
}