* Rework of keyfile download and caching.
* Supports interop
* More modular for better testing and build flavour based behavior adjustments
* More resilient handling of failed downloads
* Preperations for future hourly download and serverside checksums

TODO: Finish unit tests, keycache migration and cache health check

* First batch of unit tests and some fixes for incorrect behavior that the tests surfaced.

* Added unit tests for the KeyCacheRepository

TODO: Tests for downloader and migration.

* Implemented POC for migration old key files.

* Fixed legacy file migration and cleanup, improved logging.

* Added unit tests for legacy key file migration.

* Add fallback for different file hashes in the header.

* Yes kLint, we know it's a long method,
but for this it's better to read it in one block vs jumping to extra methods.

* More linting issues, adjusting project code style prevent a few of these in the future.

* Added missing unit tests for `KeyFileDownloader` and fixed faulty behavior that was noticed during testing.

* CRUD (instrumentation) test for `KeyCacheDatabase`

* Remove unused `FileStorageHelper` and related constants+tests.

* Fix last3Hours unit test in deviceRelease mode, we need to explicitly enable debug for these tests.

* Until we have more information about the hashsum's format in the header, default to `ETag

* Split app config server API from diagnosis key download API,
and reintroduce caching for the app config download.

* Add test to check that the cache is used on flaky connections.

* Code changes based on PR comment, part #1.

* Code fluff, formatting.

* Handle download errors correctly.

* Refactoring:
* Remove unnecessary `currentDate` we always start with the newest date from the servers index.
* Make a specialised class for header validation

* Let legacy cache migration abort early, depending on whether the key dir exists.

* If we can't create the base directory for the key repo, throw an exception.

* Delete cache entry if a download fails.

* Fixed test regression due to refactoring.

* Consolidate staleness check into `getStale`

* Consolidate clean up for failed downloads into the download method.
Added tests to check that we delete the keycache entry if the download fails (which we didn't for hours :O!)

* Because the hour-mode uses caching too, we add an explicit button to the test menu that clears the cache.

* Add comment with reference to ticket regarding follow up on the other headers.

* Move expected storage size per country into a named constant.

Co-authored-by: Matthias Urhahn <matthias.urhahn@sap.com>

* worker tests

* small fix

* fixes
testresult job tests

Co-authored-by: Hee Tatt Ooi <hee.tatt.ooi@sap.com>
Co-authored-by: Jakob Möller <jakob.moeller@sap.com>

Signed-off-by: d067928 <jakob.moeller@sap.com>

Co-authored-by: Jakob Möller <jakob.moeller@sap.com>

* [INTERNAL] Translation delivery: commit by LX Lab

Change-Id: Ic0905f66e03544c549ee6bf0edde3707c528215c

* Translation branch update (#127)

* Implement submission done fragment (#20)

* Added submission done fragment (currently dangling in nav graph)

* fixed leftover javadoc

* Moved QR code scan and registration fragment to submission package (#21)

* Dependency Updates and Gradle Fixes (#34)

* Bump up Gradle to 4.0.0 / 6.1.1

* Bump up NDK

* Bump Up SQLite

* adapt circle config

* Fix #23: Typo in onboarding screen (#31)

Co-authored-by: Jakob Möller <jakob.moeller@sap.com>

* Submission UI Additions (#25)

* Moved camera permission check to dispatcher fragment

* Added illustrations for test result screen

* Updated result fragment to match new design

* Added constraints to status card

* Integrated submission result positive other warning fragment in ui flow

* Added submission done fragment to nav graph

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* Added ability to dialog helper to create dialog without negative button

* Switched from AlertDialog.Builder to DIalogHelper

* Enable diagnosis key upload to backend (#35)

* Moved camera permission check to dispatcher fragment

* Added illustrations for test result screen

* Updated result fragment to match new design

* Added constraints to status card

* Integrated submission result positive other warning fragment in ui flow

* add TAN fetching to the key submission transaction

* remove unneeded function

* Fix log message for fetching TAN

* Added submission done fragment to nav graph

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* Added ability to dialog helper to create dialog without negative button

* Switched from AlertDialog.Builder to DIalogHelper

* use actual TAN (authCode) for key submission

set the TAN in the corresponding header field
fixes #8

* request permission to retrieve diagnosis keys

* permission needs to be requested again after dialog has been presented to the users
* trigger transaction to retrieve TAN and upload keys

Co-authored-by: Kolya Opahle <k.opahle@sap.com>

* Removed ExposureNotificationIntentService, the functionality is handled by NotificationHelper (#40)

* Fixing tele tan registration (#45)

* Fixed teleTAN based device registration

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* allowed excluded tan chars for testing

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* Revert "allowed excluded tan chars for testing"

This reverts commit 253ede4ea9c8ba2b5e6dd324680eed0f8f7e74c1.

* Release/0.5.5 (#48)

* Release/0.5.5

* Hotfix for resetting Gradle Version (internal pipeline confirmation) (#52)

* Gradle Reset to 0.5.4 (#53)

* Release/0.5.5 (#48)

* Hotfix for resetting Gradle Version (internal pipeline confirmation) (#52)

* Minify and Shrink Disabled (#56)

* Release/0.5.5

* Gradle Reset to 0.5.4 (#53)

* Release/0.5.5 (#48)

* Hotfix for resetting Gradle Version (internal pipeline confirmation) (#52)

* Disable minify / shrink

* Dont obfuscate

* 0.5.6

* Update known issues and fixing typo in readme (#44)

* added strings wip to known issues

* updated readme

Co-authored-by: Muschko <marc.muschko@sap.com>

* Updated strings, introduced more details on app-information screens (#88)

* updated strings for risk card and risk card details; plural strings are todo when finalized

* updated more strings on main / details

* added comments

* added strings for information about, information technical hotline; changed technical hotline layout

* removed hotline test icon

* fixed build issues

* Cleanup pull_request_template.md (#54)

* Update pull_request_template.md

* Removed Link to Contribution Guidelines (added by Github on the right hand side, anyhow)
* Removed Link to issue #41 from title example (this has been linked quite a lot...)

* 0.5.6

* Fix typo

Co-authored-by: Jakob Möller <jakob.moeller@sap.com>
Co-authored-by: harambasicluka <64483219+harambasicluka@users.noreply.github.com>
Co-authored-by: marcmuschko <marc.muschko@sap.com>

* Add Support for lower case characters in the teleTAN screen (#66)

* added support for lower case input in teleTan fragment

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* Removed notice of case insensitivity from temporary strings.xml

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

Co-authored-by: harambasicluka <64483219+harambasicluka@users.noreply.github.com>

* Correct typos in architecture overview (#67)

Co-authored-by: marcmuschko <marc.muschko@sap.com>

* Bluetooth & connection card (#97)

* introduced settings navigation helper

* added connection and bluetooth stati to main and tracing settings

* moved strings

* removed unnecessary backgroundTint

Co-authored-by: marcmuschko <marc.muschko@sap.com>

* Fix typo in class documentation (#71)

* 0.5.6

* fix typo

Co-authored-by: Jakob Möller <jakob.moeller@sap.com>
Co-authored-by: marcmuschko <marc.muschko@sap.com>

* spelling fixes (#87)

* 0.5.6

* spelling fixes

Co-authored-by: Jakob Möller <jakob.moeller@sap.com>
Co-authored-by: klemens <ka7@github.com>
Co-authored-by: marcmuschko <marc.muschko@sap.com>

* Moves creation of notification channel to app startup (#32)

Co-authored-by: Jakob Möller <jakob.moeller@sap.com>

* Tracing start/stop fix due to missing handling inside tracing (#99)

Co-authored-by: Jakob Möller <jakob.moeller@sap.com>

* Switch the DB Password to use the KeyStore MasterKey (#98)

Signed-off-by: d067928 <jakob.moeller@sap.com>

* Shared prefs ktx shorthand (#38)

* closes #33

* Add Commit Flag to ensure synchronous consistent Updates to Disk

Signed-off-by: d067928 <jakob.moeller@sap.com>

* Add persistance of timestamp and whether user is allowed to submit keys (#74)

* Store timestamp of receiving registration token

* also reset this timestamp when deleting the registration token

* use correct timestamp for display of test time

* replace tracing activation time by test result reception time

* rename TAN request to match context

* set isAllowedToSubmitDiagnosisKeys properly

Co-authored-by: Jakob Möller <jakob.moeller@sap.com>

* set "enabled" for include_settings_switch_row in notifications settings, fixes wrong binding and removed clickable rows (#101)

Co-authored-by: marcmuschko <marc.muschko@sap.com>

* fix #82 (#94)

* fix #82

Co-authored-by: Jakob Möller <jakob.moeller@sap.com>

* Add ShareHelper (#85)

* Add ShareHelper

* Use ShareHelper in MainShareFragment

* Replace the current exposure status with a positive result card when test result is positive (#79)

* Made submission status card style more cross device friendly

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* Added the positive result submission status card

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* lint fix

* Updated main fragment documentation

* Added icon for sharing risk status

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* Updated positive result home screen card text and icons

Signed-off-by: Kolya Opahle <k.opahle@sap.com>

* Added loading indicator to test result fragment (#100)

Co-authored-by: marcmuschko <marc.muschko@sap.com>
Co-authored-by: harambasicluka <64483219+harambasicluka@users.noreply.github.com>

* Adjusted onboarding flow, adjusted contribution file, small fixes in settings (#106)

* changed permission dialog logic for onboarding tracing fragment and onboarding notification fragment

* adjusted contributing file

* added settings notification handling to display value in settings overview

* fixed app crash during bluetooth settings navigation

* corrected wrong value from view model in tracing settings text

* Submission Contact Fragment & StepView Custom View (#102)

* - submission-contact fragment added
- StepEntry custom view added to unify various step entry views
- SimpleStepEntry as a simple implementation of a StepEntry with title and text added

* - apply naming conventions for ids
- use CallHelper to trigger a call
- access views using kotlinx.android.synthetic

Co-authored-by: harambasicluka <64483219+harambasicluka@users.noreply.github.com>

* Notifications when risk value has changed between low and high. (#76)

* Notifications when risk value has changed between low and high.

* Notifications when risk value has changed between low and high.
Fixed wildcard imports.

* Fixed formatting, ktlint issue.

* app foreground/background checking. Notifications are not sent when app is in background

* update comments

* initialize foreground flag as false(valid for background threads before ui starts)

* comments

* included UNDERTERMINED as a low, for initialisation

* fixed icon

* fixed tests

Co-authored-by: Jakob Möller <jakob.moeller@sap.com>

* added onboarding strings (#109)

* disable colored output for ktlint (#105)

Co-authored-by: harambasicluka <64483219+harambasicluka@users.noreply.github.com>
Co-authored-by: Jakob Möller <jakob.moeller@sap.com>

* Limit number of keys to be uploaded to server (#107)

* limit the number of keys to be uploaded to 14

* fix spaces

Co-authored-by: Jakob Möller <jakob.moeller@sap.com>

* Fix white space, informal language and spelling of Docker in Readme (#78)

* 0.5.6

* Fix spelling gonna and docker

* Add missing "to"

Co-authored-by: Jakob Möller <jakob.moeller@sap.com>
Co-authored-by: marcmuschko <marc.muschko@sap.com>

* Update build.gradle (#111)

* Build.Gradle Conflict Resolving (0.8.0) (#112)

* Minify and proguard fix (#113)

Commented out -dontobfuscate

* Circle progress bar (#96)

* circle progress bar impl

* ktlint format

* added new ui

* added circle to contact tracing without binding

* added binding and final icon

* added circle progress to risk card

* added comments

* changed default value for disableText

* adapted views order to designs

* removed testing value

Co-authored-by: Kirill <kirill.sergeev@sap.com>

* TracingStatusHelper unit test (#114)

* TracingStatusHelper unit test

* removed duplicate

* Prevent screenshot of the app for all activities (#108)

* Prevent screenshot of the app for all activities

* fix ktlint

* code smell fix

Co-authored-by: harambasicluka <64483219+harambasicluka@users.noreply.github.com>

* Feature: Bluetooth callback (#115)

* bluetooth callback added

* bound bluetooth callback to the ui

Co-authored-by: Kirill <kirill.sergeev@sap.com>

* Added main overview page to main menu (#120)

* added overview fragment baseline

* main overview draft version completed with build fixes

* checked some final strings again

* Fixed screen orientation to portrait (#121)

* added restriction to portrait and reversed portrait orientation only

* suppress SourceLockedOrientationActivity lint error

* changed local config that a high match can be generated via QR code, integrated it with the UI (#125)

* Feature: Translation preparation (#126)

* renamed old strings and reordered

* app information strings translation tags

* updated translation tags for long texts

* added translation comments to strings

* fixed naming error

* removed empty comment

Co-authored-by: Muschko <marc.muschko@sap.com>

Co-authored-by: Kolya Opahle <k.opahle@sap.com>
Co-authored-by: Jakob Möller <jakob.moeller@sap.com>
Co-authored-by: Michael Keppler <bananeweizen@gmx.de>
Co-authored-by: Thomas Klingbeil <64434904+tklingbeil@users.noreply.github.com>
Co-authored-by: Hee Tatt Ooi <64406309+HeeTattSap@users.noreply.github.com>
Co-authored-by: Muschko <marc.muschko@sap.com>
Co-authored-by: Thomas Kowark <thomas.kowark@sap.com>
Co-authored-by: Robert Scheck <robert-scheck@users.noreply.github.com>
Co-authored-by: Volkmar Vogel <volkmar@vogel.app>
Co-authored-by: ka7 <ka7@la-evento.com>
Co-authored-by: klemens <ka7@github.com>
Co-authored-by: Tim Brüggenthies <tim.brueggenthies@outlook.de>
Co-authored-by: mseele <mseele@gmail.com>
Co-authored-by: Janik Steegmüller <janik.steegmueller@gmail.com>
Co-authored-by: Fabian-K <fabian.kajzar@sap.com>
Co-authored-by: Hee Tatt Ooi <hee.tatt.ooi@sap.com>
Co-authored-by: Matthias Küch <mail@matthias-kuech.de>
Co-authored-by: oemerb <66002424+oemerb@users.noreply.github.com>
Co-authored-by: AlexanderAlferov <64849422+AlexanderAlferov@users.noreply.github.com>
Co-authored-by: Kirill <kirill.sergeev@sap.com>
Co-authored-by: Philipp Woessner <64482866+pwoessner@users.noreply.github.com>

* [INTERNAL] Translation delivery: commit by LX Lab

Change-Id: Ic0905f66e03544c549ee6bf0edde3707c528215c

* Remove values-2Q

Signed-off-by: d067928 <jakob.moeller@sap.com>

* [INTERNAL] Translation delivery: commit by LX Lab

Change-Id: Idf52dece137fdc6e314ed752a8ef6b79b08683b0

* deleted 2Q

* [INTERNAL] Translation delivery: commit by LX Lab

Change-Id: I63afce1d7307c912b034728d8b78d437974f818d

* excluded translation from lint for dev

* fixed quickBuild errors

Co-authored-by: service-tip-git <tmsatsls@gmail.com>
Co-authored-by: harambasicluka <64483219+harambasicluka@users.noreply.github.com>
Co-authored-by: Kolya Opahle <k.opahle@sap.com>
Co-authored-by: Michael Keppler <bananeweizen@gmx.de>
Co-authored-by: Thomas Klingbeil <64434904+tklingbeil@users.noreply.github.com>
Co-authored-by: Hee Tatt Ooi <64406309+HeeTattSap@users.noreply.github.com>
Co-authored-by: Muschko <marc.muschko@sap.com>
Co-authored-by: Thomas Kowark <thomas.kowark@sap.com>
Co-authored-by: Robert Scheck <robert-scheck@users.noreply.github.com>
Co-authored-by: Volkmar Vogel <volkmar@vogel.app>
Co-authored-by: ka7 <ka7@la-evento.com>
Co-authored-by: klemens <ka7@github.com>
Co-authored-by: Tim Brüggenthies <tim.brueggenthies@outlook.de>
Co-authored-by: mseele <mseele@gmail.com>
Co-authored-by: Janik Steegmüller <janik.steegmueller@gmail.com>
Co-authored-by: Fabian-K <fabian.kajzar@sap.com>
Co-authored-by: Hee Tatt Ooi <hee.tatt.ooi@sap.com>
Co-authored-by: Matthias Küch <mail@matthias-kuech.de>
Co-authored-by: oemerb <66002424+oemerb@users.noreply.github.com>
Co-authored-by: AlexanderAlferov <64849422+AlexanderAlferov@users.noreply.github.com>
Co-authored-by: Kirill <kirill.sergeev@sap.com>
Co-authored-by: Philipp Woessner <64482866+pwoessner@users.noreply.github.com>
Co-authored-by: Luka Harambasic <luka.harambasic@sap.com>

* Implement passphrase generation for db (closes #173) (#224)

* Add failing tests (#173)

* Fix AppDatabase instance not reset when method called (#173)

* Implement passphrase generation and storage/retrieval of passphrase by encrypted shared preferences (#173)

* Setup Retention while maintaining the DB Password

Signed-off-by: d067928 <jakob.moeller@sap.com>

* Setup Retention while maintaining the DB Password

Signed-off-by: d067928 <jakob.moeller@sap.com>

* Lint

Signed-off-by: d067928 <jakob.moeller@sap.com>

Co-authored-by: Andreas Schattney <a.schattney@gmail.com>
Co-authored-by: Philipp Woessner <64482866+pwoessner@users.noreply.github.com>

* util tests

* util tests

* util tests + persistence tests

* more persistence tests

* util tests

* util tests

* util tests + persistence tests

* TracingStatusHelper unit test

* removed duplicate