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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.commons.fileupload.util.mime;
18  
19  import static org.junit.Assert.assertEquals;
20  
21  import java.io.UnsupportedEncodingException;
22  
23  import org.apache.commons.fileupload.util.mime.MimeUtility;
24  import org.junit.Test;
25  
26  /**
27   * Use the online <a href="http://dogmamix.com/MimeHeadersDecoder/">MimeHeadersDecoder</a>
28   * to validate expected values.
29   *
30   * @since 1.3
31   */
32  public final class MimeUtilityTestCase {
33  
34      @Test
35      public void noNeedToDecode() throws Exception {
36          assertEncoded("abc", "abc");
37      }
38  
39      @Test
40      public void decodeUtf8QuotedPrintableEncoded() throws Exception {
41          assertEncoded(" hé! àèôu !!!", "=?UTF-8?Q?_h=C3=A9!_=C3=A0=C3=A8=C3=B4u_!!!?=");
42      }
43  
44      @Test
45      public void decodeUtf8Base64Encoded() throws Exception {
46          assertEncoded(" hé! àèôu !!!", "=?UTF-8?B?IGjDqSEgw6DDqMO0dSAhISE=?=");
47      }
48  
49      @Test
50      public void decodeIso88591Base64Encoded() throws Exception {
51          assertEncoded("If you can read this you understand the example.",
52                        "=?ISO-8859-1?B?SWYgeW91IGNhbiByZWFkIHRoaXMgeW8=?= =?ISO-8859-2?B?dSB1bmRlcnN0YW5kIHRoZSBleGFtcGxlLg==?=\"\r\n");
53      }
54  
55      @Test
56      public void decodeIso88591Base64EncodedWithWhiteSpace() throws Exception {
57          assertEncoded("If you can read this you understand the example.",
58                  "=?ISO-8859-1?B?SWYgeW91IGNhbiByZWFkIHRoaXMgeW8=?=\t  \r\n   =?ISO-8859-2?B?dSB1bmRlcnN0YW5kIHRoZSBleGFtcGxlLg==?=\"\r\n");
59      }
60  
61      private static void assertEncoded(String expected, String encoded) throws Exception {
62          assertEquals(expected, MimeUtility.decodeText(encoded));
63      }
64  
65      @Test(expected=UnsupportedEncodingException.class)
66      public void decodeInvalidEncoding() throws Exception {
67          MimeUtility.decodeText("=?invalid?B?xyz-?=");
68      }
69  }