add DNS Over HTTP setting

Clover/app/build.gradle

@@ -52,6 +52,7 @@ android {
         // of the format XXYYZZ, where XX is major, YY is minor, ZZ is patch
         // (watch out for octal notation, never start with a 0)
         versionCode 30002
+        multiDexEnabled true
     }
 
     compileOptions {
@@ -151,6 +152,7 @@ android {
 }
 
 dependencies {
+    implementation 'com.android.support:multidex:1.0.3'
     implementation 'androidx.legacy:legacy-support-v13:1.0.0'
     implementation 'androidx.appcompat:appcompat:1.1.0'
     implementation 'androidx.recyclerview:recyclerview:1.1.0'
@@ -165,7 +167,8 @@ dependencies {
     implementation 'com.google.android.exoplayer:exoplayer-ui:2.11.7'
 
     implementation 'com.android.volley:volley:1.1.1'
-    implementation 'com.squareup.okhttp3:okhttp:3.10.0'
+    implementation 'com.squareup.okhttp3:okhttp:5.0.0-alpha.2'
+    implementation 'com.squareup.okhttp3:okhttp-dnsoverhttps:5.0.0-alpha.2'
     //noinspection GradleDependency
     implementation 'com.j256.ormlite:ormlite-core:4.48'
     //noinspection GradleDependency

Clover/app/src/main/java/org/floens/chan/core/settings/ChanSettings.java

@@ -162,6 +162,8 @@ public String getKey() {
     public static final BooleanSetting crashReporting;
     public static final BooleanSetting useNewCaptchaWindow;
 
+    public static final BooleanSetting dnsOverHttps;
+
     static {
         SettingProvider p = new SharedPreferencesSettingProvider(AndroidUtils.getPreferences());
 
@@ -253,6 +255,8 @@ public String getKey() {
         crashReporting = new BooleanSetting(p, "preference_crash_reporting", true);
         useNewCaptchaWindow = new BooleanSetting(p, "use_new_captcha_window", true);
 
+        dnsOverHttps = new BooleanSetting(p, "dns_over_https", false);
+
         // Old (but possibly still in some users phone)
         // preference_board_view_mode default "list"
         // preference_board_editor_filler default false

Clover/app/src/main/java/org/floens/chan/core/site/http/HttpCallManager.java

@@ -21,6 +21,11 @@
 import org.floens.chan.core.di.UserAgentProvider;
 import org.floens.chan.core.site.Site;
 import org.floens.chan.core.site.SiteRequestModifier;
+import org.floens.chan.utils.Logger;
+import org.floens.chan.core.settings.ChanSettings;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.util.Arrays;
 
 import java.util.concurrent.TimeUnit;
 
@@ -29,13 +34,15 @@
 
 import okhttp3.OkHttpClient;
 import okhttp3.Request;
-
+import okhttp3.dnsoverhttps.DnsOverHttps;
+import okhttp3.HttpUrl;
 /**
  * Manages the {@link HttpCall} executions.
  */
 @Singleton
 public class HttpCallManager {
     private static final int TIMEOUT = 30000;
+    private static final String TAG = "HttpCallManager";
 
     private UserAgentProvider userAgentProvider;
     private OkHttpClient client;
@@ -48,6 +55,30 @@ public HttpCallManager(UserAgentProvider userAgentProvider) {
                 .readTimeout(TIMEOUT, TimeUnit.MILLISECONDS)
                 .writeTimeout(TIMEOUT, TimeUnit.MILLISECONDS)
                 .build();
+        if (ChanSettings.dnsOverHttps.get()) {
+            try {
+                client = client.newBuilder()
+                        .dns(new DnsOverHttps.Builder().client(client)
+                                .url(HttpUrl.parse("https://cloudflare-dns.com/dns-query"))
+                                .bootstrapDnsHosts(Arrays.asList(
+                                        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())
+                        .build();
+
+            } catch (UnknownHostException e) {
+                Logger.e(TAG, "Error Dns over https", e);
+                e.printStackTrace();
+            }
+        }
     }
 
     public void makeHttpCall(HttpCall httpCall, HttpCall.HttpCallback<? extends HttpCall> callback) {

Clover/app/src/main/java/org/floens/chan/ui/controller/BehaviourSettingsController.java

@@ -186,6 +186,16 @@ private void populatePreferences() {
 
             groups.add(proxy);
         }
+
+        // DNS Over HTTP Group
+        {
+            SettingsGroup doh = new SettingsGroup(R.string.setting_group_dns_over_https);
+
+            doh.add(new BooleanSettingView(this, ChanSettings.dnsOverHttps,
+                    R.string.setting_group_dns_enable, R.string.setting_group_dns_enable_description));
+
+            groups.add(doh);
+        }
     }
 
     private void setupClearThreadHidesSetting(SettingsGroup post) {

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

@@ -499,6 +499,10 @@ Crash reports do not collect any personally identifiable information."
     <string name="setting_proxy_address">Proxy server address</string>
     <string name="setting_proxy_port">Proxy server port</string>
 
+    <!-- Behavior DNS over HTTPS group -->
+    <string name="setting_group_dns_over_https">DNS over HTTPS</string>
+    <string name="setting_group_dns_enable">Enable DOH (Cloudflare)</string>
+    <string name="setting_group_dns_enable_description">Requires app restart to take effect</string>
 
     <!-- Media -->
     <string name="settings_screen_media">Media</string>