Fix crashes

app/src/main/kotlin/org/koitharu/kotatsu/core/cache/MemoryContentCache.kt

@@ -16,16 +16,16 @@ class MemoryContentCache @Inject constructor(application: Application) : Compone
 
 	private val isLowRam = application.isLowRamDevice()
 
-	init {
-		application.registerComponentCallbacks(this)
-	}
-
 	private val detailsCache = ExpiringLruCache<SafeDeferred<Manga>>(if (isLowRam) 1 else 4, 5, TimeUnit.MINUTES)
 	private val pagesCache =
 		ExpiringLruCache<SafeDeferred<List<MangaPage>>>(if (isLowRam) 1 else 4, 10, TimeUnit.MINUTES)
 	private val relatedMangaCache =
 		ExpiringLruCache<SafeDeferred<List<Manga>>>(if (isLowRam) 1 else 3, 10, TimeUnit.MINUTES)
 
+	init {
+		application.registerComponentCallbacks(this)
+	}
+
 	suspend fun getDetails(source: MangaSource, url: String): Manga? {
 		return detailsCache[Key(source, url)]?.awaitOrNull()
 	}

app/src/main/kotlin/org/koitharu/kotatsu/core/prefs/SourceSettings.kt

@@ -3,7 +3,6 @@ package org.koitharu.kotatsu.core.prefs
 import android.content.Context
 import android.content.SharedPreferences.OnSharedPreferenceChangeListener
 import androidx.core.content.edit
-import okhttp3.internal.isSensitiveHeader
 import org.koitharu.kotatsu.core.util.ext.getEnumValue
 import org.koitharu.kotatsu.core.util.ext.ifNullOrEmpty
 import org.koitharu.kotatsu.core.util.ext.putEnumValue
@@ -12,6 +11,7 @@ import org.koitharu.kotatsu.parsers.config.ConfigKey
 import org.koitharu.kotatsu.parsers.config.MangaSourceConfig
 import org.koitharu.kotatsu.parsers.model.MangaSource
 import org.koitharu.kotatsu.parsers.model.SortOrder
+import org.koitharu.kotatsu.settings.utils.validation.DomainValidator
 
 class SourceSettings(context: Context, source: MangaSource) : MangaSourceConfig {
 
@@ -31,7 +31,11 @@ class SourceSettings(context: Context, source: MangaSource) : MangaSourceConfig
 				.ifNullOrEmpty { key.defaultValue }
 				.sanitizeHeaderValue()
 
-			is ConfigKey.Domain -> prefs.getString(key.key, key.defaultValue).ifNullOrEmpty { key.defaultValue }
+			is ConfigKey.Domain -> prefs.getString(key.key, key.defaultValue)
+				?.trim()
+				?.takeIf { DomainValidator.isValidDomain(it) }
+				?: key.defaultValue
+
 			is ConfigKey.ShowSuspiciousContent -> prefs.getBoolean(key.key, key.defaultValue)
 			is ConfigKey.SplitByTranslations -> prefs.getBoolean(key.key, key.defaultValue)
 		} as T

app/src/main/kotlin/org/koitharu/kotatsu/settings/utils/validation/DomainValidator.kt

@@ -11,20 +11,24 @@ class DomainValidator : EditTextValidator() {
 		if (trimmed.isEmpty()) {
 			return ValidationResult.Success
 		}
-		return if (!checkCharacters(trimmed)) {
+		return if (!isValidDomain(trimmed)) {
 			ValidationResult.Failed(context.getString(R.string.invalid_domain_message))
 		} else {
 			ValidationResult.Success
 		}
 	}
 
-	private fun checkCharacters(value: String): Boolean = runCatching {
-		val parts = value.split(':')
-		require(parts.size <= 2)
-		val urlBuilder = HttpUrl.Builder()
-		urlBuilder.host(parts.first())
-		if (parts.size == 2) {
-			urlBuilder.port(parts[1].toInt())
-		}
-	}.isSuccess
+	companion object {
+
+		fun isValidDomain(value: String): Boolean = runCatching {
+			require(value.isNotEmpty())
+			val parts = value.split(':')
+			require(parts.size <= 2)
+			val urlBuilder = HttpUrl.Builder()
+			urlBuilder.host(parts.first())
+			if (parts.size == 2) {
+				urlBuilder.port(parts[1].toInt())
+			}
+		}.isSuccess
+	}
 }