Add support for domain fronting

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

@@ -42,6 +42,8 @@ import com.hippo.ehviewer.client.EhClient;
 import com.hippo.ehviewer.client.EhCookieStore;
 import com.hippo.ehviewer.client.EhDns;
 import com.hippo.ehviewer.client.EhEngine;
+import com.hippo.ehviewer.client.EhSSLSocketFactory;
+import com.hippo.ehviewer.client.EhX509TrustManager;
 import com.hippo.ehviewer.client.data.GalleryDetail;
 import com.hippo.ehviewer.download.DownloadManager;
 import com.hippo.ehviewer.spider.SpiderDen;
@@ -140,6 +142,8 @@ public class EhApplication extends RecordingApplication {
                     .callTimeout(10, TimeUnit.SECONDS)
                     .cookieJar(getEhCookieStore(application))
                     .cache(getOkHttpCache(application))
+                    .sslSocketFactory(new EhSSLSocketFactory(), new EhX509TrustManager())
+                    .hostnameVerifier((hostname, session) -> true)
                     .dns(new EhDns(application))
                     .proxySelector(getEhProxySelector(application))
                     .build();

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

@@ -0,0 +1,58 @@
+package com.hippo.ehviewer.client;
+
+import android.util.Log;
+
+import java.io.IOException;
+import java.net.InetAddress;
+import java.net.Socket;
+
+import javax.net.ssl.SSLSocketFactory;
+
+public class EhSSLSocketFactory extends SSLSocketFactory {
+    @Override
+    public String[] getDefaultCipherSuites() {
+        return new String[0];
+    }
+
+    @Override
+    public String[] getSupportedCipherSuites() {
+        return new String[0];
+    }
+
+    @Override
+    public Socket createSocket(Socket s, String host, int port, boolean autoClose) throws IOException {
+        InetAddress address = s.getInetAddress();
+        Log.d("EhSSLSocketFactory", "Host: " + host + " Address: " + address.getHostAddress());
+        if (autoClose) s.close();
+        if (host.endsWith("e-hentai.org") ||
+                host.endsWith("exhentai.org") ||
+                host.endsWith("ehgt.org") ||
+                host.endsWith("hath.network")) {
+            return getDefault().createSocket(address, port);
+        } else {
+            return getDefault().createSocket(host, port);
+        }
+    }
+
+    @Override
+    public Socket createSocket(String host, int port) {
+        return null;
+    }
+
+    @Override
+    public Socket createSocket(String host, int port, InetAddress localHost, int localPort) {
+        return null;
+    }
+
+    @Override
+    public Socket createSocket(InetAddress host, int port) {
+        return null;
+    }
+
+    @Override
+    public Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort) {
+        return null;
+    }
+
+
+}

app/src/main/java/com/hippo/ehviewer/client/EhX509TrustManager.java

@@ -0,0 +1,26 @@
+package com.hippo.ehviewer.client;
+
+import android.annotation.SuppressLint;
+
+import java.security.cert.X509Certificate;
+
+import javax.net.ssl.X509TrustManager;
+
+public class EhX509TrustManager implements X509TrustManager {
+    @SuppressLint("TrustAllX509TrustManager")
+    @Override
+    public void checkClientTrusted(X509Certificate[] chain, String authType) {
+
+    }
+
+    @SuppressLint("TrustAllX509TrustManager")
+    @Override
+    public void checkServerTrusted(X509Certificate[] chain, String authType) {
+
+    }
+
+    @Override
+    public X509Certificate[] getAcceptedIssuers() {
+        return new X509Certificate[0];
+    }
+}