001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.commons.fileupload2.core;
018
019import static org.junit.jupiter.api.Assertions.assertEquals;
020import static org.junit.jupiter.api.Assertions.assertThrows;
021
022import java.io.UnsupportedEncodingException;
023
024import org.junit.jupiter.api.Test;
025
026/**
027 * Use the online <a href="http://dogmamix.com/MimeHeadersDecoder/">MimeHeadersDecoder</a> to validate expected values.
028 */
029public final class MimeUtilityTestCase {
030
031    private static void assertEncoded(final String expected, final String encoded) throws Exception {
032        assertEquals(expected, MimeUtils.decodeText(encoded));
033    }
034
035    @Test
036    public void testDecodeInvalidEncoding() {
037        assertThrows(UnsupportedEncodingException.class, () -> MimeUtils.decodeText("=?invalid?B?xyz-?="));
038    }
039
040    @Test
041    public void testDecodeIso88591Base64Encoded() throws Exception {
042        assertEncoded("If you can read this you understand the example.",
043                "=?ISO-8859-1?B?SWYgeW91IGNhbiByZWFkIHRoaXMgeW8=?= " + "=?ISO-8859-2?B?dSB1bmRlcnN0YW5kIHRoZSBleGFtcGxlLg==?=\"\r\n");
044    }
045
046    @Test
047    public void testDecodeIso88591Base64EncodedWithWhiteSpace() throws Exception {
048        assertEncoded("If you can read this you understand the example.",
049                "=?ISO-8859-1?B?SWYgeW91IGNhbiByZWFkIHRoaXMgeW8=?=\t  \r\n   =?ISO-8859-" + "2?B?dSB1bmRlcnN0YW5kIHRoZSBleGFtcGxlLg==?=\"\r\n");
050    }
051
052    @Test
053    public void testDecodeUtf8Base64Encoded() throws Exception {
054        assertEncoded(" h\u00e9! \u00e0\u00e8\u00f4u !!!", "=?UTF-8?B?IGjDqSEgw6DDqMO0dSAhISE=?=");
055    }
056
057    @Test
058    public void testDecodeUtf8QuotedPrintableEncoded() throws Exception {
059        assertEncoded(" h\u00e9! \u00e0\u00e8\u00f4u !!!", "=?UTF-8?Q?_h=C3=A9!_=C3=A0=C3=A8=C3=B4u_!!!?=");
060    }
061
062    @Test
063    public void testNoNeedToDecode() throws Exception {
064        assertEncoded("abc", "abc");
065    }
066}