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Change UI for re-installation of system apps

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We are re-installing system apps if they are present on the restore device as a system app and have a newer version code.
Before, when one of those conditions is not true, we were showing a failure and gave the user the option to re-install the app from an app store.
Now, we don't offer the manual re-install option anymore and only show a success when a newer or same version of the system app is already installed.
This commit is contained in:
Torsten Grote 2020-10-09 15:20:50 -03:00 committed by Chirayu Desai
parent 0971c5db19
commit 643247b600
4 changed files with 79 additions and 37 deletions
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53
app/src/main/java/com/stevesoltys/seedvault/restore/install/ApkRestore.kt
View file

@ -1,15 +1,16 @@
package com.stevesoltys.seedvault.restore.install
import android.content.Context
import android.content.pm.PackageManager
import android.content.pm.PackageManager.GET_SIGNATURES
import android.content.pm.PackageManager.GET_SIGNING_CERTIFICATES
import android.content.pm.PackageManager.NameNotFoundException
import android.util.Log
import com.stevesoltys.seedvault.metadata.PackageMetadata
import com.stevesoltys.seedvault.metadata.PackageMetadataMap
import com.stevesoltys.seedvault.restore.install.ApkInstallState.FAILED
import com.stevesoltys.seedvault.restore.install.ApkInstallState.FAILED_SYSTEM_APP
import com.stevesoltys.seedvault.restore.install.ApkInstallState.IN_PROGRESS
import com.stevesoltys.seedvault.restore.install.ApkInstallState.QUEUED
import com.stevesoltys.seedvault.restore.install.ApkInstallState.SUCCEEDED
import com.stevesoltys.seedvault.transport.backup.copyStreamsAndGetHash
import com.stevesoltys.seedvault.transport.backup.getSignatures
import com.stevesoltys.seedvault.transport.backup.isSystemApp
@ -55,13 +56,13 @@ internal class ApkRestore(
restore(this, token, packageName, metadata, installResult)
} catch (e: IOException) {
Log.e(TAG, "Error re-installing APK for $packageName.", e)
emit(fail(installResult, packageName))
emit(installResult.fail(packageName))
} catch (e: SecurityException) {
Log.e(TAG, "Security error re-installing APK for $packageName.", e)
emit(fail(installResult, packageName))
emit(installResult.fail(packageName))
} catch (e: TimeoutCancellationException) {
Log.e(TAG, "Timeout while re-installing APK for $packageName.", e)
emit(fail(installResult, packageName))
emit(installResult.fail(packageName))
}
}
installResult.isFinished = true
@ -128,17 +129,10 @@ internal class ApkRestore(
}
collector.emit(installResult)
// ensure system apps are actually installed and newer system apps as well
// ensure system apps are actually already installed and newer system apps as well
if (metadata.system) {
try {
val installedPackageInfo = pm.getPackageInfo(packageName, 0)
// metadata.version is not null, because here hasApk() must be true
val isOlder = metadata.version!! <= installedPackageInfo.longVersionCode
if (isOlder || !installedPackageInfo.isSystemApp()) throw NameNotFoundException()
} catch (e: NameNotFoundException) {
Log.w(TAG, "Not installing $packageName because older or not a system app here.")
// TODO consider reporting different status here to prevent manual installs
collector.emit(fail(installResult, packageName))
shouldInstallSystemApp(packageName, metadata, installResult)?.let {
collector.emit(it)
return
}
}
@ -148,8 +142,33 @@ internal class ApkRestore(
collector.emit(result)
}
private fun fail(installResult: MutableInstallResult, packageName: String): InstallResult {
return installResult.update(packageName) { it.copy(state = FAILED) }
/**
* Returns null if this system app should get re-installed,
* or a new [InstallResult] to be emitted otherwise.
*/
private fun shouldInstallSystemApp(
packageName: String,
metadata: PackageMetadata,
installResult: MutableInstallResult
): InstallResult? {
val installedPackageInfo = try {
pm.getPackageInfo(packageName, 0)
} catch (e: PackageManager.NameNotFoundException) {
Log.w(TAG, "Not installing system app $packageName because not installed here.")
// we report a different FAILED status here to prevent manual installs
return installResult.fail(packageName, FAILED_SYSTEM_APP)
}
// metadata.version is not null, because here hasApk() must be true
val isOlder = metadata.version!! <= installedPackageInfo.longVersionCode
return if (isOlder) {
Log.w(TAG, "Not installing $packageName because ours is older.")
installResult.update(packageName) { it.copy(state = SUCCEEDED) }
} else if (!installedPackageInfo.isSystemApp()) {
Log.w(TAG, "Not installing $packageName because not a system app here.")
installResult.update(packageName) { it.copy(state = SUCCEEDED) }
} else {
null // everything is good, we can re-install this
}
}
}

6
app/src/main/java/com/stevesoltys/seedvault/restore/install/InstallProgressAdapter.kt
View file

@ -11,6 +11,7 @@ import androidx.recyclerview.widget.SortedList
import androidx.recyclerview.widget.SortedListAdapterCallback
import com.stevesoltys.seedvault.R
import com.stevesoltys.seedvault.restore.install.ApkInstallState.FAILED
import com.stevesoltys.seedvault.restore.install.ApkInstallState.FAILED_SYSTEM_APP
import com.stevesoltys.seedvault.restore.install.ApkInstallState.IN_PROGRESS
import com.stevesoltys.seedvault.restore.install.ApkInstallState.QUEUED
import com.stevesoltys.seedvault.restore.install.ApkInstallState.SUCCEEDED
@ -97,6 +98,11 @@ internal class InstallProgressAdapter(
appInfo.setText(R.string.restore_installing_tap_to_install)
}
}
FAILED_SYSTEM_APP -> {
appStatus.setImageResource(R.drawable.ic_error_red)
appStatus.visibility = VISIBLE
progressBar.visibility = INVISIBLE
}
QUEUED -> throw AssertionError()
}
}

12
app/src/main/java/com/stevesoltys/seedvault/restore/install/InstallResult.kt
View file

@ -97,6 +97,10 @@ internal class MutableInstallResult(override val total: Int) : InstallResult {
return this
}
fun fail(packageName: String, state: ApkInstallState = FAILED): InstallResult {
return update(packageName) { it.copy(state = state) }
}
override fun reCheckFailedPackage(pm: PackageManager, packageName: String): Boolean {
check(isFinished) { "re-checking failed packages only allowed when finished" }
if (pm.isInstalled(packageName)) {
@ -133,5 +137,11 @@ enum class ApkInstallState {
QUEUED,
IN_PROGRESS,
SUCCEEDED,
FAILED
FAILED,
/**
* The app was a system app and can't be installed on the restore device,
* because it is not preset there.
*/
FAILED_SYSTEM_APP
}

25
app/src/test/java/com/stevesoltys/seedvault/restore/install/ApkRestoreTest.kt
View file

@ -12,6 +12,7 @@ import com.stevesoltys.seedvault.getRandomString
import com.stevesoltys.seedvault.metadata.PackageMetadata
import com.stevesoltys.seedvault.metadata.PackageMetadataMap
import com.stevesoltys.seedvault.restore.install.ApkInstallState.FAILED
import com.stevesoltys.seedvault.restore.install.ApkInstallState.FAILED_SYSTEM_APP
import com.stevesoltys.seedvault.restore.install.ApkInstallState.IN_PROGRESS
import com.stevesoltys.seedvault.restore.install.ApkInstallState.QUEUED
import com.stevesoltys.seedvault.restore.install.ApkInstallState.SUCCEEDED
@ -24,6 +25,7 @@ import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.flow.collect
import kotlinx.coroutines.flow.collectIndexed
import kotlinx.coroutines.runBlocking
import org.junit.jupiter.api.Assertions
import org.junit.jupiter.api.Assertions.assertEquals
import org.junit.jupiter.api.Assertions.assertFalse
import org.junit.jupiter.api.Assertions.assertTrue
@ -242,10 +244,7 @@ internal class ApkRestoreTest : TransportTest() {
packageInfo.applicationInfo = mockk()
val installedPackageInfo: PackageInfo = mockk()
val willFail = Random.nextBoolean()
installedPackageInfo.applicationInfo = ApplicationInfo().apply {
// will not fail when app really is a system app
flags = if (willFail) FLAG_INSTALLED else FLAG_SYSTEM or FLAG_UPDATED_SYSTEM_APP
}
val isSystemApp = Random.nextBoolean()
every { strictContext.cacheDir } returns File(tmpDir.toString())
coEvery { restorePlugin.getApkInputStream(token, packageName) } returns apkInputStream
@ -258,9 +257,18 @@ internal class ApkRestoreTest : TransportTest() {
} returns icon
every { packageInfo.applicationInfo.loadIcon(pm) } returns icon
every { pm.getApplicationLabel(packageInfo.applicationInfo) } returns appName
if (willFail) {
every {
pm.getPackageInfo(packageName, 0)
} throws PackageManager.NameNotFoundException()
} else {
installedPackageInfo.applicationInfo = ApplicationInfo().apply {
flags =
if (!isSystemApp) FLAG_INSTALLED else FLAG_SYSTEM or FLAG_UPDATED_SYSTEM_APP
}
every { pm.getPackageInfo(packageName, 0) } returns installedPackageInfo
every { installedPackageInfo.longVersionCode } returns packageMetadata.version!! - 1
if (!willFail) {
if (isSystemApp) { // if the installed app is not a system app, we don't install
val installResult = MutableInstallResult(1).apply {
set(
packageName,
@ -271,6 +279,7 @@ internal class ApkRestoreTest : TransportTest() {
apkInstaller.install(any(), packageName, installerName, any())
} returns installResult
}
}
apkRestore.restore(token, packageMetadataMap).collectIndexed { i, value ->
when (i) {
@ -289,14 +298,12 @@ internal class ApkRestoreTest : TransportTest() {
2 -> {
val result = value[packageName]
if (willFail) {
assertEquals(FAILED, result.state)
assertEquals(FAILED_SYSTEM_APP, result.state)
} else {
assertEquals(SUCCEEDED, result.state)
}
assertEquals(willFail, value.hasFailed)
}
3 -> {
assertEquals(willFail, value.hasFailed)
assertTrue(value.isFinished)
}
else -> fail("more values emitted")
@ -307,5 +314,5 @@ internal class ApkRestoreTest : TransportTest() {
}
private operator fun InstallResult.get(packageName: String): ApkInstallResult {
return (this as MutableInstallResult)[packageName] ?: fail("$packageName not found")
return (this as MutableInstallResult)[packageName] ?: Assertions.fail("$packageName not found")
}