Avoid unnecessary domain fronting, #711

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

@@ -291,7 +291,7 @@ public class Hosts {
         }
     }
 
-    private boolean contains(String host) {
+    public boolean contains(String host) {
         try (Cursor cursor = db.rawQuery("SELECT * FROM " + TABLE_HOSTS + " WHERE " + COLUMN_HOST + " = ?;", new String[]{host})) {
             return cursor.moveToNext();
         }

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

@@ -123,4 +123,8 @@ object EhDns : Dns {
         return hosts[hostname] ?: builtInHosts[hostname].takeIf { Settings.getBuiltInHosts() }
         ?: Dns.SYSTEM.lookup(hostname)
     }
-}
+
+    fun isInHost(hostname: String): Boolean {
+        return hosts.contains(hostname) || (builtInHosts.contains(hostname) && Settings.getBuiltInHosts())
+    }
+}

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

@@ -34,8 +34,8 @@ object EhSSLSocketFactory : SSLSocketFactory() {
     }
 
     override fun createSocket(s: Socket, host: String, port: Int, autoClose: Boolean): Socket {
-        val address = s.inetAddress.hostAddress
-        val socket = sslSocketFactory.createSocket(s, address, port, autoClose) as SSLSocket
+        val address = s.inetAddress.hostAddress.takeIf { EhDns.isInHost(host) }
+        val socket = sslSocketFactory.createSocket(s, address ?: host, port, autoClose) as SSLSocket
         val sslSession = socket.session
         Log.d(
             "EhSSLSocketFactory",