DNS-over-HTTPS (Adguard) (#5715)

* Update DohProviders.kt

* Update NetworkHelper.kt

* Update SettingsAdvancedController.kt

* fix typo

* Fix typo

* Fix typo

app/src/main/java/eu/kanade/tachiyomi/data/image/coil/CoilSetup.kt

@@ -7,8 +7,9 @@ import coil.ImageLoader
 import coil.decode.GifDecoder
 import coil.decode.ImageDecoderDecoder
 import coil.decode.SvgDecoder
-import com.chuckerteam.chucker.api.ChuckerInterceptor
-import okhttp3.OkHttpClient
+import eu.kanade.tachiyomi.network.NetworkHelper
+import uy.kohesive.injekt.Injekt
+import uy.kohesive.injekt.api.get
 
 class CoilSetup(context: Context) {
     init {
@@ -26,11 +27,8 @@ class CoilSetup(context: Context) {
                 add(SvgDecoder(context))
                 add(MangaFetcher())
                 add(ByteArrayFetcher())
-            }.okHttpClient {
-                OkHttpClient.Builder()
-                    .addInterceptor(ChuckerInterceptor(context))
-                    .build()
             }
+            .okHttpClient(Injekt.get<NetworkHelper>().coilClient)
             .build()
 
         Coil.setImageLoader(imageLoader)

app/src/main/java/eu/kanade/tachiyomi/network/DohProviders.kt

@@ -11,6 +11,7 @@ import java.net.InetAddress
 
 const val PREF_DOH_CLOUDFLARE = 1
 const val PREF_DOH_GOOGLE = 2
+const val PREF_DOH_ADGUARD = 3
 
 fun OkHttpClient.Builder.dohCloudflare() = dns(
     DnsOverHttps.Builder().client(build())
@@ -38,3 +39,16 @@ fun OkHttpClient.Builder.dohGoogle() = dns(
         )
         .build()
 )
+
+// AdGuard "Default" DNS works too but for the sake of making sure no site is blacklisted, i picked "Unfiltered"
+fun OkHttpClient.Builder.dohAdGuard() = dns(
+    DnsOverHttps.Builder().client(build())
+        .url("https://dns-unfiltered.adguard.com/dns-query".toHttpUrl())
+        .bootstrapDnsHosts(
+            InetAddress.getByName("94.140.14.140"),
+            InetAddress.getByName("94.140.14.141"),
+            InetAddress.getByName("2a10:50c0::1:ff"),
+            InetAddress.getByName("2a10:50c0::2:ff"),
+        )
+        .build()
+)

app/src/main/java/eu/kanade/tachiyomi/network/NetworkHelper.kt

@@ -1,6 +1,7 @@
 package eu.kanade.tachiyomi.network
 
 import android.content.Context
+import coil.util.CoilUtils
 import com.chuckerteam.chucker.api.ChuckerInterceptor
 import eu.kanade.tachiyomi.BuildConfig
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
@@ -10,7 +11,7 @@ import uy.kohesive.injekt.injectLazy
 import java.io.File
 import java.util.concurrent.TimeUnit
 
-class NetworkHelper(context: Context) {
+class NetworkHelper(val context: Context) {
 
     private val preferences: PreferencesHelper by injectLazy()
 
@@ -20,24 +21,31 @@ class NetworkHelper(context: Context) {
 
     val cookieManager = AndroidCookieJar()
 
-    val client by lazy {
-        OkHttpClient.Builder()
-            .cookieJar(cookieManager)
-            .cache(Cache(cacheDir, cacheSize))
-            .connectTimeout(30, TimeUnit.SECONDS)
-            .readTimeout(30, TimeUnit.SECONDS)
-            .addInterceptor(UserAgentInterceptor())
-            .apply {
-                if (BuildConfig.DEBUG) {
-                    addInterceptor(ChuckerInterceptor(context))
+    private val baseClientBuilder: OkHttpClient.Builder
+        get() {
+            val builder = OkHttpClient.Builder()
+                .cookieJar(cookieManager)
+                .connectTimeout(30, TimeUnit.SECONDS)
+                .readTimeout(30, TimeUnit.SECONDS)
+                .addInterceptor(UserAgentInterceptor())
+                .apply {
+                    if (BuildConfig.DEBUG) {
+                        addInterceptor(ChuckerInterceptor(context))
+                    }
+
+                    when (preferences.dohProvider()) {
+                        PREF_DOH_CLOUDFLARE -> dohCloudflare()
+                        PREF_DOH_GOOGLE -> dohGoogle()
+                        PREF_DOH_ADGUARD -> dohAdGuard()
+                    }
                 }
 
-                when (preferences.dohProvider()) {
-                    PREF_DOH_CLOUDFLARE -> dohCloudflare()
-                    PREF_DOH_GOOGLE -> dohGoogle()
-                }
-            }.build()
-    }
+            return builder
+        }
+
+    val client by lazy { baseClientBuilder.cache(Cache(cacheDir, cacheSize)).build() }
+
+    val coilClient by lazy { baseClientBuilder.cache(CoilUtils.createDefaultCache(context)).build() }
 
     val cloudflareClient by lazy {
         client.newBuilder()

app/src/main/java/eu/kanade/tachiyomi/ui/setting/SettingsAdvancedController.kt

@@ -24,6 +24,7 @@ import eu.kanade.tachiyomi.data.library.LibraryUpdateService
 import eu.kanade.tachiyomi.data.library.LibraryUpdateService.Target
 import eu.kanade.tachiyomi.data.preference.PreferenceKeys
 import eu.kanade.tachiyomi.network.NetworkHelper
+import eu.kanade.tachiyomi.network.PREF_DOH_ADGUARD
 import eu.kanade.tachiyomi.network.PREF_DOH_CLOUDFLARE
 import eu.kanade.tachiyomi.network.PREF_DOH_GOOGLE
 import eu.kanade.tachiyomi.source.SourceManager
@@ -33,11 +34,7 @@ import eu.kanade.tachiyomi.util.system.launchIO
 import eu.kanade.tachiyomi.util.system.launchUI
 import eu.kanade.tachiyomi.util.system.toast
 import eu.kanade.tachiyomi.util.view.openInBrowser
-import kotlinx.coroutines.CoroutineStart
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.GlobalScope
-import kotlinx.coroutines.Job
-import kotlinx.coroutines.launch
+import kotlinx.coroutines.*
 import rx.Observable
 import rx.android.schedulers.AndroidSchedulers
 import rx.schedulers.Schedulers
@@ -190,12 +187,16 @@ class SettingsAdvancedController : SettingsController() {
                     activity?.toast(R.string.cookies_cleared)
                 }
             }
-
             intListPreference(activity) {
                 key = PreferenceKeys.dohProvider
                 titleRes = R.string.doh
-                entriesRes = arrayOf(R.string.disabled, R.string.cloudflare, R.string.google)
-                entryValues = listOf(-1, PREF_DOH_CLOUDFLARE, PREF_DOH_GOOGLE)
+                entriesRes = arrayOf(
+                    R.string.disabled,
+                    R.string.cloudflare,
+                    R.string.google,
+                    R.string.adGuard
+                )
+                entryValues = listOf(-1, PREF_DOH_CLOUDFLARE, PREF_DOH_GOOGLE, PREF_DOH_ADGUARD)
 
                 defaultValue = -1
                 onChange {

app/src/main/res/values/strings.xml

@@ -750,6 +750,7 @@
     <string name="disabled">Disabled</string>
     <string name="cloudflare" translatable="false">Cloudflare</string>
     <string name="google" translatable="false">Google</string>
+    <string name="adGuard" translatable="false">AdGuard</string>
     <string name="requires_app_restart">Requires app restart to take effect</string>
     <string name="used_">Used: %1$s</string>
     <plurals name="cache_cleared">