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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  }