Java Encode encodeEmail(String s)

License

Declaration

public static String encodeEmail(String s) 

Method Source Code

//package com.java2s;
/****************************************************************
 * Licensed to the Apache Software Foundation (ASF) under one   *
 * or more contributor license agreements.  See the NOTICE file *
 * distributed with this work for additional information        *
 * regarding copyright ownership.  The ASF licenses this file   *
 * to you under the Apache License, Version 2.0 (the            *
 * "License"); you may not use this file except in compliance   *
 * with the License.  You may obtain a copy of the License at   *
 *                                                              *
 *   http://www.apache.org/licenses/LICENSE-2.0                 *
 *                                                              *
 * Unless required by applicable law or agreed to in writing,   *
 * software distributed under the License is distributed on an  *
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
 * KIND, either express or implied.  See the License for the    *
 * specific language governing permissions and limitations      *
 * under the License.                                           *
 ****************************************************************/

import java.io.UnsupportedEncodingException;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import javax.mail.internet.MimeUtility;

public class Main {
    /**// w  w  w. j  a  v  a 2 s.  co  m
     * Encode non ascii characters present in emails like:
     *
     * =?ISO-8859-1?Q?No=20hay=20ma=F1ana?= <hello@hupa.org>
     */
    public static String encodeEmail(String s) {
        if (s == null) {
            return s;
        }
        Pattern p = Pattern.compile("^\\s*(.*?)\\s*(<[^>]+>)\\s*");
        Matcher m = p.matcher(s);
        return m.matches() ? encodeTexts(m.group(1)) + " " + m.group(2) : s;
    }

    /**
     * Encode non ascii characters present in email headers
     */
    public static String encodeTexts(String s) {
        String ret = s;
        if (s != null) {
            try {
                ret = MimeUtility.encodeText(s, "ISO-8859-1", null);
            } catch (UnsupportedEncodingException e) {
            }
        }
        return ret;
    }
}

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