1 /*
   2  * Copyright (c) 2012, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #include "config.h"
  27 #include "IDNJava.h"
  28 #include <wtf/java/JavaEnv.h>
  29 #include "com_sun_webkit_network_URLLoader.h"
  30 
  31 namespace IDNJavaInternal {
  32 
  33 static JGClass idnClass;
  34 static jmethodID toASCIIMID;
  35 
  36 static void initRefs(JNIEnv* env)
  37 {
  38     if (!idnClass) {
  39         idnClass = JLClass(env->FindClass("java/net/IDN"));
  40         ASSERT(idnClass);
  41 
  42         toASCIIMID = env->GetStaticMethodID(
  43                 idnClass,
  44                 "toASCII",
  45                 "(Ljava/lang/String;I)Ljava/lang/String;");
  46         ASSERT(toASCIIMID);
  47     }
  48 }
  49 }
  50 
  51 namespace WebCore {
  52 
  53 namespace IDNJava {
  54 
  55 String toASCII(const String& hostname)
  56 {
  57     using namespace IDNJavaInternal;
  58     JNIEnv* env = WebCore_GetJavaEnv();
  59     initRefs(env);
  60 
  61     JLString result = static_cast<jstring>(env->CallStaticObjectMethod(
  62             idnClass,
  63             toASCIIMID,
  64             (jstring)hostname.toJavaString(env),
  65             com_sun_webkit_network_URLLoader_ALLOW_UNASSIGNED));
  66     CheckAndClearException(env);
  67 
  68     return String(env, result);
  69 }
  70 
  71 } // namespace IDNJava
  72 
  73 } // namespace WebCore