Nuke DoH

app/src/main/java/com/hippo/ehviewer/Settings.java

@@ -92,7 +92,6 @@ public class Settings {
     public static final String KEY_READ_CACHE_SIZE = "read_cache_size";
     public static final int DEFAULT_READ_CACHE_SIZE = 320;
     public static final String KEY_BUILT_IN_HOSTS = "built_in_hosts_2";
-    public static final String KEY_DOH = "dns_over_https";
     public static final String KEY_DOMAIN_FRONTING = "domain_fronting";
     public static final String KEY_APP_LANGUAGE = "app_language";
     private static final String TAG = Settings.class.getSimpleName();
@@ -243,7 +242,6 @@ public class Settings {
     private static final String KEY_SAVE_CRASH_LOG = "save_crash_log";
     private static final boolean DEFAULT_SAVE_CRASH_LOG = true;
     private static final boolean DEFAULT_BUILT_IN_HOSTS = false;
-    private static final boolean DEFAULT_DOH = false;
     private static final boolean DEFAULT_FRONTING = false;
     private static final String DEFAULT_APP_LANGUAGE = "system";
     private static final String KEY_PROXY_TYPE = "proxy_type";
@@ -282,10 +280,7 @@ public class Settings {
 
     private static void fixDefaultValue(Context context) {
         if ("CN".equals(Locale.getDefault().getCountry())) {
-            // Enable DoH and domain fronting if the country is CN
-            if (!sSettingsPre.contains(KEY_DOH)) {
-                putDoH(true);
-            }
+            // Enable domain fronting if the country is CN
             if (!sSettingsPre.contains(KEY_BUILT_IN_HOSTS)) {
                 putBuiltInHosts(true);
             }
@@ -1074,14 +1069,6 @@ public class Settings {
         putBoolean(KEY_BUILT_IN_HOSTS, value);
     }
 
-    public static boolean getDoH() {
-        return getBoolean(KEY_DOH, DEFAULT_DOH);
-    }
-
-    public static void putDoH(boolean value) {
-        putBoolean(KEY_DOH, value);
-    }
-
     public static boolean getDF() {
         return getBoolean(KEY_DOMAIN_FRONTING, DEFAULT_FRONTING);
     }

app/src/main/java/com/hippo/ehviewer/client/EhDns.java

@@ -36,9 +36,6 @@ import java.util.List;
 import java.util.Map;
 
 import okhttp3.Dns;
-import okhttp3.HttpUrl;
-import okhttp3.OkHttpClient;
-import okhttp3.dnsoverhttps.DnsOverHttps;
 
 public class EhDns implements Dns {
 
@@ -67,14 +64,9 @@ public class EhDns implements Dns {
     }
 
     private final Hosts hosts;
-    private static DnsOverHttps dnsOverHttps;
 
     public EhDns(Context context) {
         hosts = EhApplication.getHosts(context);
-        DnsOverHttps.Builder builder = new DnsOverHttps.Builder()
-                .client(new OkHttpClient.Builder().cache(EhApplication.getOkHttpCache(context)).build())
-                .url(HttpUrl.get("https://101.6.6.6:8443/dns-query"));
-        dnsOverHttps = builder.post(true).build();
     }
 
     private static void put(Map<String, List<InetAddress>> map, String host, String... ips) {
@@ -98,15 +90,6 @@ public class EhDns implements Dns {
                 return inetAddresses;
             }
         }
-        if (Settings.getDoH()) {
-            try {
-                inetAddresses = dnsOverHttps.lookup(hostname);
-                if (inetAddresses.size() > 0) {
-                    return inetAddresses;
-                }
-            } catch (UnknownHostException ignore) {
-            }
-        }
         return SYSTEM.lookup(hostname);
     }
 }

app/src/main/res/xml/advanced_settings.xml

@@ -86,13 +86,6 @@
         android:fragment="com.hippo.ehviewer.ui.fragment.HostsFragment"
         app:iconSpaceReserved="false" />
 
-    <SwitchPreference
-        android:defaultValue="false"
-        android:key="dns_over_https"
-        android:summary="@string/settings_advanced_dns_over_http_summary"
-        android:title="@string/settings_advanced_dns_over_http_title"
-        app:iconSpaceReserved="false" />
-
     <SwitchPreference
         android:defaultValue="false"
         android:key="domain_fronting"