34 lines
956 B
Java
34 lines
956 B
Java
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// Copyright 2014 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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package org.chromium.url;
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import org.jni_zero.CalledByNative;
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import org.jni_zero.JNINamespace;
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import java.net.IDN;
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/**
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* This class is used to convert unicode IDN domain names to ASCII, when not
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* building with ICU.
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*/
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@JNINamespace("url::android")
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public class IDNStringUtil {
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/**
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* Attempts to convert a Unicode string to an ASCII string using IDN rules.
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* As of May 2014, the underlying Java function IDNA2003.
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* @param src String to convert.
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* @return: String containing only ASCII characters on success, null on
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* failure.
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*/
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@CalledByNative
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private static String idnToASCII(String src) {
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try {
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return IDN.toASCII(src, IDN.USE_STD3_ASCII_RULES);
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} catch (Exception e) {
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return null;
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}
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}
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}
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