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Avoid memory leak in ExceptionResolver

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This commit is contained in:
Koitharu
2025-11-02 10:56:23 +02:00
parent 881f154b5e
commit 7a3b2a9bb4
5 changed files with 171 additions and 137 deletions
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294
app/src/main/kotlin/org/koitharu/kotatsu/core/exceptions/resolve/ExceptionResolver.kt
View File

@@ -8,9 +8,10 @@ import androidx.collection.MutableScatterMap
import androidx.fragment.app.Fragment
import androidx.fragment.app.FragmentActivity
import androidx.fragment.app.FragmentManager
import dagger.assisted.Assisted
import dagger.assisted.AssistedFactory
import dagger.assisted.AssistedInject
import androidx.lifecycle.Lifecycle
import androidx.lifecycle.LifecycleOwner
import androidx.lifecycle.lifecycleScope
import kotlinx.coroutines.async
import org.koitharu.kotatsu.R
import org.koitharu.kotatsu.browser.BrowserActivity
import org.koitharu.kotatsu.browser.cloudflare.CloudFlareActivity
@@ -32,164 +33,205 @@ import org.koitharu.kotatsu.scrobbling.common.domain.ScrobblerAuthRequiredExcept
import org.koitharu.kotatsu.scrobbling.common.ui.ScrobblerAuthHelper
import org.koitharu.kotatsu.settings.sources.auth.SourceAuthActivity
import java.security.cert.CertPathValidatorException
import javax.inject.Inject
import javax.inject.Provider
import javax.net.ssl.SSLException
import kotlin.coroutines.Continuation
import kotlin.coroutines.resume
import kotlin.coroutines.suspendCoroutine
class ExceptionResolver @AssistedInject constructor(
@Assisted private val host: Host,
private val settings: AppSettings,
private val scrobblerAuthHelperProvider: Provider<ScrobblerAuthHelper>,
class ExceptionResolver private constructor(
private val host: Host,
private val settings: AppSettings,
private val scrobblerAuthHelperProvider: Provider<ScrobblerAuthHelper>,
) {
private val continuations = MutableScatterMap<String, Continuation<Boolean>>(1)
private val continuations = MutableScatterMap<String, Continuation<Boolean>>(1)
private val browserActionContract = host.registerForActivityResult(BrowserActivity.Contract()) {
handleActivityResult(BrowserActivity.TAG, true)
}
private val sourceAuthContract = host.registerForActivityResult(SourceAuthActivity.Contract()) {
handleActivityResult(SourceAuthActivity.TAG, it)
}
private val cloudflareContract = host.registerForActivityResult(CloudFlareActivity.Contract()) {
handleActivityResult(CloudFlareActivity.TAG, it)
}
private val browserActionContract = host.registerForActivityResult(BrowserActivity.Contract()) {
handleActivityResult(BrowserActivity.TAG, true)
}
private val sourceAuthContract = host.registerForActivityResult(SourceAuthActivity.Contract()) {
handleActivityResult(SourceAuthActivity.TAG, it)
}
private val cloudflareContract = host.registerForActivityResult(CloudFlareActivity.Contract()) {
handleActivityResult(CloudFlareActivity.TAG, it)
}
fun showErrorDetails(e: Throwable, url: String? = null) {
host.router()?.showErrorDialog(e, url)
}
fun showErrorDetails(e: Throwable, url: String? = null) {
host.router.showErrorDialog(e, url)
}
suspend fun resolve(e: Throwable): Boolean = when (e) {
is CloudFlareProtectedException -> resolveCF(e)
is AuthRequiredException -> resolveAuthException(e.source)
is SSLException,
is CertPathValidatorException -> {
showSslErrorDialog()
false
}
suspend fun resolve(e: Throwable): Boolean = host.lifecycleScope.async {
when (e) {
is CloudFlareProtectedException -> resolveCF(e)
is AuthRequiredException -> resolveAuthException(e.source)
is SSLException,
is CertPathValidatorException -> {
showSslErrorDialog()
false
}
is InteractiveActionRequiredException -> resolveBrowserAction(e)
is InteractiveActionRequiredException -> resolveBrowserAction(e)
is ProxyConfigException -> {
host.router()?.openProxySettings()
false
}
is ProxyConfigException -> {
host.router.openProxySettings()
false
}
is NotFoundException -> {
openInBrowser(e.url)
false
}
is NotFoundException -> {
openInBrowser(e.url)
false
}
is UnsupportedSourceException -> {
e.manga?.let { openAlternatives(it) }
false
}
is UnsupportedSourceException -> {
e.manga?.let { openAlternatives(it) }
false
}
is ScrobblerAuthRequiredException -> {
val authHelper = scrobblerAuthHelperProvider.get()
if (authHelper.isAuthorized(e.scrobbler)) {
true
} else {
host.withContext {
authHelper.startAuth(this, e.scrobbler).onFailure(::showErrorDetails)
}
false
}
}
is ScrobblerAuthRequiredException -> {
val authHelper = scrobblerAuthHelperProvider.get()
if (authHelper.isAuthorized(e.scrobbler)) {
true
} else {
host.withContext {
authHelper.startAuth(this, e.scrobbler).onFailure(::showErrorDetails)
}
false
}
}
else -> false
}
else -> false
}
}.await()
private suspend fun resolveBrowserAction(
e: InteractiveActionRequiredException
): Boolean = suspendCoroutine { cont ->
continuations[BrowserActivity.TAG] = cont
browserActionContract.launch(e)
}
private suspend fun resolveBrowserAction(
e: InteractiveActionRequiredException
): Boolean = suspendCoroutine { cont ->
continuations[BrowserActivity.TAG] = cont
browserActionContract.launch(e)
}
private suspend fun resolveCF(e: CloudFlareProtectedException): Boolean = suspendCoroutine { cont ->
continuations[CloudFlareActivity.TAG] = cont
cloudflareContract.launch(e)
}
private suspend fun resolveCF(e: CloudFlareProtectedException): Boolean = suspendCoroutine { cont ->
continuations[CloudFlareActivity.TAG] = cont
cloudflareContract.launch(e)
}
private suspend fun resolveAuthException(source: MangaSource): Boolean = suspendCoroutine { cont ->
continuations[SourceAuthActivity.TAG] = cont
sourceAuthContract.launch(source)
}
private suspend fun resolveAuthException(source: MangaSource): Boolean = suspendCoroutine { cont ->
continuations[SourceAuthActivity.TAG] = cont
sourceAuthContract.launch(source)
}
private fun openInBrowser(url: String) {
host.router()?.openBrowser(url, null, null)
}
private fun openInBrowser(url: String) {
host.router.openBrowser(url, null, null)
}
private fun openAlternatives(manga: Manga) {
host.router()?.openAlternatives(manga)
}
private fun openAlternatives(manga: Manga) {
host.router.openAlternatives(manga)
}
private fun handleActivityResult(tag: String, result: Boolean) {
continuations.remove(tag)?.resume(result)
}
private fun handleActivityResult(tag: String, result: Boolean) {
continuations.remove(tag)?.resume(result)
}
private fun showSslErrorDialog() {
val ctx = host.getContext() ?: return
if (settings.isSSLBypassEnabled) {
Toast.makeText(ctx, R.string.operation_not_supported, Toast.LENGTH_SHORT).show()
return
}
buildAlertDialog(ctx) {
setTitle(R.string.ignore_ssl_errors)
setMessage(R.string.ignore_ssl_errors_summary)
setPositiveButton(R.string.apply) { _, _ ->
settings.isSSLBypassEnabled = true
Toast.makeText(ctx, R.string.settings_apply_restart_required, Toast.LENGTH_LONG).show()
ctx.restartApplication()
}
setNegativeButton(android.R.string.cancel, null)
}.show()
}
private fun showSslErrorDialog() {
val ctx = host.context ?: return
if (settings.isSSLBypassEnabled) {
Toast.makeText(ctx, R.string.operation_not_supported, Toast.LENGTH_SHORT).show()
return
}
buildAlertDialog(ctx) {
setTitle(R.string.ignore_ssl_errors)
setMessage(R.string.ignore_ssl_errors_summary)
setPositiveButton(R.string.apply) { _, _ ->
settings.isSSLBypassEnabled = true
Toast.makeText(ctx, R.string.settings_apply_restart_required, Toast.LENGTH_LONG).show()
ctx.restartApplication()
}
setNegativeButton(android.R.string.cancel, null)
}.show()
}
private inline fun Host.withContext(block: Context.() -> Unit) {
getContext()?.apply(block)
}
class Factory @Inject constructor(
private val settings: AppSettings,
private val scrobblerAuthHelperProvider: Provider<ScrobblerAuthHelper>,
) {
private fun Host.router(): AppRouter? = when (this) {
is FragmentActivity -> router
is Fragment -> router
else -> null
}
fun create(fragment: Fragment) = ExceptionResolver(
host = Host.FragmentHost(fragment),
settings = settings,
scrobblerAuthHelperProvider = scrobblerAuthHelperProvider,
)
interface Host : ActivityResultCaller {
fun create(activity: FragmentActivity) = ExceptionResolver(
host = Host.ActivityHost(activity),
settings = settings,
scrobblerAuthHelperProvider = scrobblerAuthHelperProvider,
)
}
fun getChildFragmentManager(): FragmentManager
private sealed interface Host : ActivityResultCaller, LifecycleOwner {
fun getContext(): Context?
}
val context: Context?
@AssistedFactory
interface Factory {
val router: AppRouter
fun create(host: Host): ExceptionResolver
}
val fragmentManager: FragmentManager
companion object {
inline fun withContext(block: Context.() -> Unit) {
context?.apply(block)
}
@StringRes
fun getResolveStringId(e: Throwable) = when (e) {
is CloudFlareProtectedException -> R.string.captcha_solve
is ScrobblerAuthRequiredException,
is AuthRequiredException -> R.string.sign_in
class ActivityHost(val activity: FragmentActivity) : Host,
ActivityResultCaller by activity,
LifecycleOwner by activity {
is NotFoundException -> if (e.url.isHttpUrl()) R.string.open_in_browser else 0
is UnsupportedSourceException -> if (e.manga != null) R.string.alternatives else 0
is SSLException,
is CertPathValidatorException -> R.string.fix
override val context: Context
get() = activity
is ProxyConfigException -> R.string.settings
override val router: AppRouter
get() = activity.router
is InteractiveActionRequiredException -> R.string._continue
override val fragmentManager: FragmentManager
get() = activity.supportFragmentManager
}
else -> 0
}
class FragmentHost(val fragment: Fragment) : Host,
ActivityResultCaller by fragment {
fun canResolve(e: Throwable) = getResolveStringId(e) != 0
}
override val context: Context?
get() = fragment.context
override val router: AppRouter
get() = fragment.router
override val fragmentManager: FragmentManager
get() = fragment.childFragmentManager
override val lifecycle: Lifecycle
get() = fragment.viewLifecycleOwner.lifecycle
}
}
companion object {
@StringRes
fun getResolveStringId(e: Throwable) = when (e) {
is CloudFlareProtectedException -> R.string.captcha_solve
is ScrobblerAuthRequiredException,
is AuthRequiredException -> R.string.sign_in
is NotFoundException -> if (e.url.isHttpUrl()) R.string.open_in_browser else 0
is UnsupportedSourceException -> if (e.manga != null) R.string.alternatives else 0
is SSLException,
is CertPathValidatorException -> R.string.fix
is ProxyConfigException -> R.string.settings
is InteractiveActionRequiredException -> R.string._continue
else -> 0
}
fun canResolve(e: Throwable) = getResolveStringId(e) != 0
}
}

5
app/src/main/kotlin/org/koitharu/kotatsu/core/ui/BaseActivity.kt
View File

@@ -33,7 +33,6 @@ import androidx.appcompat.R as appcompatR
abstract class BaseActivity<B : ViewBinding> :
AppCompatActivity(),
ExceptionResolver.Host,
OnApplyWindowInsetsListener,
ScreenshotPolicyHelper.ContentContainer {
@@ -87,10 +86,6 @@ abstract class BaseActivity<B : ViewBinding> :
@Deprecated("Use ViewBinding", level = DeprecationLevel.ERROR)
override fun setContentView(view: View?) = throw UnsupportedOperationException()
override fun getContext() = this
override fun getChildFragmentManager(): FragmentManager = supportFragmentManager
protected fun setContentView(binding: B) {
this.viewBinding = binding
super.setContentView(binding.root)

3
app/src/main/kotlin/org/koitharu/kotatsu/core/ui/BaseFragment.kt
View File

@@ -15,8 +15,7 @@ import org.koitharu.kotatsu.core.ui.util.ActionModeDelegate
abstract class BaseFragment<B : ViewBinding> :
OnApplyWindowInsetsListener,
Fragment(),
ExceptionResolver.Host {
Fragment() {
var viewBinding: B? = null
private set

3
app/src/main/kotlin/org/koitharu/kotatsu/core/ui/BasePreferenceFragment.kt
View File

@@ -36,8 +36,7 @@ import com.google.android.material.R as materialR
abstract class BasePreferenceFragment(@StringRes private val titleId: Int) :
PreferenceFragmentCompat(),
OnApplyWindowInsetsListener,
RecyclerViewOwner,
ExceptionResolver.Host {
RecyclerViewOwner {
protected lateinit var exceptionResolver: ExceptionResolver
private set

3
app/src/main/kotlin/org/koitharu/kotatsu/core/ui/sheet/BaseAdaptiveSheet.kt
View File

@@ -32,8 +32,7 @@ import org.koitharu.kotatsu.core.ui.util.ActionModeDelegate
import com.google.android.material.R as materialR
abstract class BaseAdaptiveSheet<B : ViewBinding> : AppCompatDialogFragment(),
OnApplyWindowInsetsListener,
ExceptionResolver.Host {
OnApplyWindowInsetsListener {
private var waitingForDismissAllowingStateLoss = false
private var isFitToContentsDisabled = false