Add Google DoH provider

app/build.gradle.kts

@@ -29,7 +29,7 @@ android {
         minSdkVersion(AndroidConfig.minSdk)
         targetSdkVersion(AndroidConfig.targetSdk)
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
-        versionCode = 56
+        versionCode = 57
         versionName = "0.10.9"
 
         buildConfigField("String", "COMMIT_COUNT", "\"${getCommitCount()}\"")

app/src/main/java/eu/kanade/tachiyomi/Migrations.kt

@@ -9,6 +9,7 @@ import eu.kanade.tachiyomi.data.preference.PreferencesHelper
 import eu.kanade.tachiyomi.data.track.TrackManager
 import eu.kanade.tachiyomi.data.updater.UpdaterJob
 import eu.kanade.tachiyomi.extension.ExtensionUpdateJob
+import eu.kanade.tachiyomi.network.PREF_DOH_CLOUDFLARE
 import eu.kanade.tachiyomi.ui.library.LibrarySort
 import eu.kanade.tachiyomi.util.system.toast
 import eu.kanade.tachiyomi.widget.ExtendedNavigationView
@@ -127,6 +128,17 @@ object Migrations {
                     context.toast(R.string.myanimelist_relogin)
                 }
             }
+            if (oldVersion < 57) {
+                // Migrate DNS over HTTPS setting
+                val prefs = PreferenceManager.getDefaultSharedPreferences(context)
+                val wasDohEnabled = prefs.getBoolean("enable_doh", false)
+                if (wasDohEnabled) {
+                    prefs.edit {
+                        putInt(PreferenceKeys.dohProvider, PREF_DOH_CLOUDFLARE)
+                        remove("enable_doh")
+                    }
+                }
+            }
             return true
         }
 

app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferenceKeys.kt

@@ -191,7 +191,7 @@ object PreferenceKeys {
 
     const val searchPinnedSourcesOnly = "search_pinned_sources_only"
 
-    const val enableDoh = "enable_doh"
+    const val dohProvider = "doh_provider"
 
     const val defaultChapterFilterByRead = "default_chapter_filter_by_read"
 

app/src/main/java/eu/kanade/tachiyomi/data/preference/PreferencesHelper.kt

@@ -279,7 +279,7 @@ class PreferencesHelper(val context: Context) {
 
     fun trustedSignatures() = flowPrefs.getStringSet("trusted_signatures", emptySet())
 
-    fun enableDoh() = prefs.getBoolean(Keys.enableDoh, false)
+    fun dohProvider() = prefs.getInt(Keys.dohProvider, -1)
 
     fun lastSearchQuerySearchSettings() = flowPrefs.getString("last_search_query", "")
 

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

@@ -0,0 +1,40 @@
+package eu.kanade.tachiyomi.network
+
+import okhttp3.HttpUrl.Companion.toHttpUrl
+import okhttp3.OkHttpClient
+import okhttp3.dnsoverhttps.DnsOverHttps
+import java.net.InetAddress
+
+/**
+ * Based on https://github.com/square/okhttp/blob/ef5d0c83f7bbd3a0c0534e7ca23cbc4ee7550f3b/okhttp-dnsoverhttps/src/test/java/okhttp3/dnsoverhttps/DohProviders.java
+ */
+
+const val PREF_DOH_CLOUDFLARE = 1
+const val PREF_DOH_GOOGLE = 2
+
+fun OkHttpClient.Builder.dohCloudflare() = dns(
+    DnsOverHttps.Builder().client(build())
+        .url("https://cloudflare-dns.com/dns-query".toHttpUrl())
+        .bootstrapDnsHosts(
+            InetAddress.getByName("162.159.36.1"),
+            InetAddress.getByName("162.159.46.1"),
+            InetAddress.getByName("1.1.1.1"),
+            InetAddress.getByName("1.0.0.1"),
+            InetAddress.getByName("162.159.132.53"),
+            InetAddress.getByName("2606:4700:4700::1111"),
+            InetAddress.getByName("2606:4700:4700::1001"),
+            InetAddress.getByName("2606:4700:4700::0064"),
+            InetAddress.getByName("2606:4700:4700::6400")
+        )
+        .build()
+)
+
+fun OkHttpClient.Builder.dohGoogle() = dns(
+    DnsOverHttps.Builder().client(build())
+        .url("https://dns.google/dns-query".toHttpUrl())
+        .bootstrapDnsHosts(
+            InetAddress.getByName("8.8.4.4"),
+            InetAddress.getByName("8.8.8.8")
+        )
+        .build()
+)

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

@@ -4,13 +4,10 @@ import android.content.Context
 import eu.kanade.tachiyomi.BuildConfig
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
 import okhttp3.Cache
-import okhttp3.HttpUrl.Companion.toHttpUrl
 import okhttp3.OkHttpClient
-import okhttp3.dnsoverhttps.DnsOverHttps
 import okhttp3.logging.HttpLoggingInterceptor
 import uy.kohesive.injekt.injectLazy
 import java.io.File
-import java.net.InetAddress
 import java.util.concurrent.TimeUnit
 
 class NetworkHelper(context: Context) {
@@ -38,25 +35,9 @@ class NetworkHelper(context: Context) {
             builder.addInterceptor(httpLoggingInterceptor)
         }
 
-        if (preferences.enableDoh()) {
-            builder.dns(
-                DnsOverHttps.Builder().client(builder.build())
-                    .url("https://cloudflare-dns.com/dns-query".toHttpUrl())
-                    .bootstrapDnsHosts(
-                        listOf(
-                            InetAddress.getByName("162.159.36.1"),
-                            InetAddress.getByName("162.159.46.1"),
-                            InetAddress.getByName("1.1.1.1"),
-                            InetAddress.getByName("1.0.0.1"),
-                            InetAddress.getByName("162.159.132.53"),
-                            InetAddress.getByName("2606:4700:4700::1111"),
-                            InetAddress.getByName("2606:4700:4700::1001"),
-                            InetAddress.getByName("2606:4700:4700::0064"),
-                            InetAddress.getByName("2606:4700:4700::6400")
-                        )
-                    )
-                    .build()
-            )
+        when (preferences.dohProvider()) {
+            PREF_DOH_CLOUDFLARE -> builder.dohCloudflare()
+            PREF_DOH_GOOGLE -> builder.dohGoogle()
         }
 
         builder.build()

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

@@ -17,9 +17,13 @@ import eu.kanade.tachiyomi.data.database.DatabaseHelper
 import eu.kanade.tachiyomi.data.library.LibraryUpdateService
 import eu.kanade.tachiyomi.data.library.LibraryUpdateService.Target
 import eu.kanade.tachiyomi.network.NetworkHelper
+import eu.kanade.tachiyomi.network.PREF_DOH_CLOUDFLARE
+import eu.kanade.tachiyomi.network.PREF_DOH_GOOGLE
 import eu.kanade.tachiyomi.ui.base.controller.DialogController
 import eu.kanade.tachiyomi.util.CrashLogUtil
 import eu.kanade.tachiyomi.util.preference.defaultValue
+import eu.kanade.tachiyomi.util.preference.intListPreference
+import eu.kanade.tachiyomi.util.preference.onChange
 import eu.kanade.tachiyomi.util.preference.onClick
 import eu.kanade.tachiyomi.util.preference.preference
 import eu.kanade.tachiyomi.util.preference.preferenceCategory
@@ -124,11 +128,26 @@ class SettingsAdvancedController : SettingsController() {
                     activity?.toast(R.string.cookies_cleared)
                 }
             }
-            switchPreference {
-                key = Keys.enableDoh
+            intListPreference {
+                key = Keys.dohProvider
                 titleRes = R.string.pref_dns_over_https
-                summaryRes = R.string.requires_app_restart
-                defaultValue = false
+                entries = arrayOf(
+                    context.getString(R.string.disabled),
+                    "Cloudflare",
+                    "Google",
+                )
+                entryValues = arrayOf(
+                    "-1",
+                    PREF_DOH_CLOUDFLARE.toString(),
+                    PREF_DOH_GOOGLE.toString(),
+                )
+                defaultValue = "-1"
+                summary = "%s"
+
+                onChange {
+                    activity?.toast(R.string.requires_app_restart)
+                    true
+                }
             }
         }
 

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

@@ -417,7 +417,7 @@
       <!-- Advanced section -->
     <string name="label_network">Network</string>
     <string name="pref_clear_cookies">Clear cookies</string>
-    <string name="pref_dns_over_https">DNS over HTTPS (Cloudflare)</string>
+    <string name="pref_dns_over_https">DNS over HTTPS</string>
     <string name="requires_app_restart">Requires app restart to take effect</string>
     <string name="cookies_cleared">Cookies cleared</string>
     <string name="label_data">Data</string>