| /* |
| * 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. |
| */ |
| package org.apache.commons.fileupload.util.mime; |
| |
| import static org.junit.Assert.assertArrayEquals; |
| import static org.junit.Assert.fail; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.UnsupportedEncodingException; |
| |
| import org.junit.Test; |
| |
| /** |
| * @since 1.3 |
| */ |
| public final class QuotedPrintableDecoderTestCase { |
| |
| private static final String US_ASCII_CHARSET = "US-ASCII"; |
| |
| @Test |
| public void emptyDecode() throws Exception { |
| assertEncoded("", ""); |
| } |
| |
| @Test |
| public void plainDecode() throws Exception { |
| // spaces are allowed in encoded data |
| // There are special rules for trailing spaces; these are not currently implemented. |
| assertEncoded("The quick brown fox jumps over the lazy dog.", "The quick brown fox jumps over the lazy dog."); |
| } |
| |
| @Test |
| public void basicEncodeDecode() throws Exception { |
| assertEncoded("= Hello there =\r\n", "=3D Hello there =3D=0D=0A"); |
| } |
| |
| @Test |
| public void invalidQuotedPrintableEncoding() throws Exception { |
| assertIOException("truncated escape sequence", "YWJjMTIzXy0uKn4hQCMkJV4mKCkre31cIlxcOzpgLC9bXQ=="); |
| } |
| |
| @Test |
| public void unsafeDecode() throws Exception { |
| assertEncoded("=\r\n", "=3D=0D=0A"); |
| } |
| |
| @Test |
| public void unsafeDecodeLowerCase() throws Exception { |
| assertEncoded("=\r\n", "=3d=0d=0a"); |
| } |
| |
| @Test(expected = IOException.class) |
| public void invalidCharDecode() throws Exception { |
| assertEncoded("=\r\n", "=3D=XD=XA"); |
| } |
| |
| /** |
| * This is NOT supported by Commons-Codec, see CODEC-121. |
| * |
| * @throws Exception |
| * @see <a href="https://issues.apache.org/jira/browse/CODEC-121">CODEC-121</a> |
| */ |
| @Test |
| public void softLineBreakDecode() throws Exception { |
| assertEncoded("If you believe that truth=beauty, then surely mathematics is the most beautiful branch of philosophy.", |
| "If you believe that truth=3Dbeauty, then surely=20=\r\nmathematics is the most beautiful branch of philosophy."); |
| } |
| |
| @Test |
| public void invalidSoftBreak1() throws Exception { |
| assertIOException("CR must be followed by LF", "=\r\r"); |
| } |
| |
| @Test |
| public void invalidSoftBreak2() throws Exception { |
| assertIOException("CR must be followed by LF", "=\rn"); |
| } |
| |
| @Test |
| public void truncatedEscape() throws Exception { |
| assertIOException("truncated", "=1"); |
| } |
| |
| private static void assertEncoded(String clearText, String encoded) throws Exception { |
| byte[] expected = clearText.getBytes(US_ASCII_CHARSET); |
| |
| ByteArrayOutputStream out = new ByteArrayOutputStream(encoded.length()); |
| byte[] encodedData = encoded.getBytes(US_ASCII_CHARSET); |
| QuotedPrintableDecoder.decode(encodedData, out); |
| byte[] actual = out.toByteArray(); |
| |
| assertArrayEquals(expected, actual); |
| } |
| |
| private static void assertIOException(String messageText, String encoded) throws UnsupportedEncodingException { |
| ByteArrayOutputStream out = new ByteArrayOutputStream(encoded.length()); |
| byte[] encodedData = encoded.getBytes(US_ASCII_CHARSET); |
| try { |
| QuotedPrintableDecoder.decode(encodedData, out); |
| fail("Expected IOException"); |
| } catch (IOException e) { |
| String em = e.getMessage(); |
| assertTrue("Expected to find " + messageText + " in '" + em + "'",em.contains(messageText)); |
| } |
| } |
| |
| } |