[6785] | 1 | /**************************************************************** |
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| 2 | * Licensed to the Apache Software Foundation (ASF) under one * |
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| 3 | * or more contributor license agreements. See the NOTICE file * |
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| 4 | * distributed with this work for additional information * |
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| 5 | * regarding copyright ownership. The ASF licenses this file * |
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| 6 | * to you under the Apache License, Version 2.0 (the * |
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| 7 | * "License"); you may not use this file except in compliance * |
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| 8 | * with the License. You may obtain a copy of the License at * |
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| 9 | * * |
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| 10 | * http://www.apache.org/licenses/LICENSE-2.0 * |
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| 11 | * * |
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| 12 | * Unless required by applicable law or agreed to in writing, * |
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| 13 | * software distributed under the License is distributed on an * |
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| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * |
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| 15 | * KIND, either express or implied. See the License for the * |
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| 16 | * specific language governing permissions and limitations * |
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| 17 | * under the License. * |
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| 18 | ****************************************************************/ |
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| 19 | |
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| 20 | package org.apache.james.mime4j.codec; |
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| 21 | |
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| 22 | import java.io.ByteArrayInputStream; |
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| 23 | import java.io.ByteArrayOutputStream; |
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| 24 | import java.io.IOException; |
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| 25 | import java.io.InputStream; |
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| 26 | import java.io.UnsupportedEncodingException; |
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| 27 | |
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| 28 | import junit.framework.TestCase; |
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| 29 | |
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| 30 | public class QuotedPrintableInputStreamTest extends TestCase { |
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| 31 | |
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| 32 | public void testBasicDecode() throws IOException, UnsupportedEncodingException { |
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| 33 | ByteArrayInputStream bis = new ByteArrayInputStream("=e1=e2=E3=E4\r\n".getBytes("US-ASCII")); |
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| 34 | QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
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| 35 | assertEquals("\u00e1\u00e2\u00e3\u00e4\r\n", new String(read(decoder), "ISO8859-1")); |
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| 36 | } |
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| 37 | |
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| 38 | public void testDecodeBufferWrapping() throws IOException, UnsupportedEncodingException { |
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| 39 | ByteArrayInputStream bis = new ByteArrayInputStream( |
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| 40 | "=e1=e2=E3=E4\r\n=e1=e2=E3=E4\r\n=e1=e2=E3=E4\r\n=e1=e2=E3=E4\r\n=e1=e2=E3=E4\r\n".getBytes("US-ASCII")); |
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| 41 | QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
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| 42 | assertEquals("\u00e1\u00e2\u00e3\u00e4\r\n\u00e1\u00e2\u00e3\u00e4\r\n\u00e1\u00e2\u00e3" + |
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| 43 | "\u00e4\r\n\u00e1\u00e2\u00e3\u00e4\r\n\u00e1\u00e2\u00e3\u00e4\r\n", new String(read(decoder), "ISO8859-1")); |
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| 44 | } |
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| 45 | |
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| 46 | public void testInvalidValueDecode() throws IOException, UnsupportedEncodingException { |
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| 47 | ByteArrayInputStream bis = new ByteArrayInputStream("=e1=g2=E3=E4\r\n".getBytes("US-ASCII")); |
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| 48 | QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
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| 49 | assertEquals("\u00e1=g2\u00e3\u00e4\r\n", new String(read(decoder), "ISO8859-1")); |
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| 50 | } |
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| 51 | |
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| 52 | public void testDecodeTrailingBlanks() throws IOException, UnsupportedEncodingException { |
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| 53 | ByteArrayInputStream bis = new ByteArrayInputStream(" =e1 =e2 =E3\t=E4 \t \t \r\n".getBytes("US-ASCII")); |
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| 54 | QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
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| 55 | assertEquals(" \u00e1 \u00e2 \u00e3\t\u00e4\r\n", new String(read(decoder), "ISO8859-1")); |
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| 56 | } |
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| 57 | |
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| 58 | public void testCanonicalSoftBreakDecode() throws IOException, UnsupportedEncodingException { |
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| 59 | ByteArrayInputStream bis = new ByteArrayInputStream("Soft line =\r\nHard line \r\n".getBytes("US-ASCII")); |
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| 60 | QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
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| 61 | assertEquals("Soft line Hard line\r\n", new String(read(decoder), "ISO8859-1")); |
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| 62 | } |
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| 63 | |
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| 64 | public void testInvalidCR() throws IOException, UnsupportedEncodingException { |
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| 65 | ByteArrayInputStream bis = new ByteArrayInputStream("Invalid=\rCR\rHard line \r\n".getBytes("US-ASCII")); |
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| 66 | QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
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| 67 | // TODO is this what we really expect from decoding a stream including CR with no LF? |
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| 68 | assertEquals("Invalid=\rCR\rHard line\r\n", new String(read(decoder), "ISO8859-1")); |
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| 69 | } |
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| 70 | |
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| 71 | public void testSoftBreakLoneLFDecode() throws IOException, UnsupportedEncodingException { |
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| 72 | ByteArrayInputStream bis = new ByteArrayInputStream("Soft line =\nHard line \r\n".getBytes("US-ASCII")); |
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| 73 | QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
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| 74 | assertEquals("Soft line Hard line\r\n", new String(read(decoder), "ISO8859-1")); |
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| 75 | } |
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| 76 | |
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| 77 | public void testSoftBreakTrailingBalnksDecode() throws IOException, UnsupportedEncodingException { |
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| 78 | ByteArrayInputStream bis = new ByteArrayInputStream("Soft line = \t \r\nHard line \r\n".getBytes("US-ASCII")); |
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| 79 | QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
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| 80 | assertEquals("Soft line Hard line\r\n", new String(read(decoder), "ISO8859-1")); |
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| 81 | } |
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| 82 | |
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| 83 | public void testBrokenSoftBreakDecode() throws IOException, UnsupportedEncodingException { |
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| 84 | ByteArrayInputStream bis = new ByteArrayInputStream("Soft line =\rHard line \r\n".getBytes("US-ASCII")); |
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| 85 | QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
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| 86 | assertEquals("Soft line =\rHard line\r\n", new String(read(decoder), "ISO8859-1")); |
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| 87 | } |
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| 88 | |
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| 89 | public void testEscapedEQDecode() throws IOException, UnsupportedEncodingException { |
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| 90 | ByteArrayInputStream bis = new ByteArrayInputStream("width==340 height=3d200\r\n".getBytes("US-ASCII")); |
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| 91 | QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
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| 92 | assertEquals("width=340 height=200\r\n", new String(read(decoder), "ISO8859-1")); |
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| 93 | // TODO this could be even decoded as width=40 height=200. |
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| 94 | } |
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| 95 | |
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| 96 | public void testBrokenEscapedEQDecode() throws IOException, UnsupportedEncodingException { |
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| 97 | /* |
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| 98 | * This isn't valid qp (==) but it is known to occur in certain |
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| 99 | * messages, especially spam. |
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| 100 | */ |
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| 101 | ByteArrayInputStream bis = new ByteArrayInputStream("width==\r\n340 height=3d200\r\n".getBytes("US-ASCII")); |
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| 102 | QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
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| 103 | assertEquals("width=340 height=200\r\n", new String(read(decoder), "ISO8859-1")); |
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| 104 | } |
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| 105 | |
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| 106 | public void testSpacesBeforeEOL() throws IOException, UnsupportedEncodingException { |
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| 107 | ByteArrayInputStream bis = new ByteArrayInputStream("some \r\n spaced\t\r\ncontent \t \r\n".getBytes("US-ASCII")); |
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| 108 | QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
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| 109 | assertEquals("some\r\n spaced\r\ncontent\r\n", new String(read(decoder), "ISO8859-1")); |
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| 110 | } |
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| 111 | |
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| 112 | |
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| 113 | public void testDecodeEndOfStream1() throws IOException, UnsupportedEncodingException { |
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| 114 | ByteArrayInputStream bis = new ByteArrayInputStream("01234567".getBytes("US-ASCII")); |
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| 115 | QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(6, bis, false); |
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| 116 | assertEquals("01234567", new String(read(decoder), "ISO8859-1")); |
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| 117 | } |
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| 118 | |
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| 119 | public void testDecodeEndOfStream2() throws IOException, UnsupportedEncodingException { |
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| 120 | ByteArrayInputStream bis = new ByteArrayInputStream("012345\r".getBytes("US-ASCII")); |
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| 121 | QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(6, bis, false); |
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| 122 | assertEquals("012345", new String(read(decoder), "ISO8859-1")); |
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| 123 | } |
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| 124 | |
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| 125 | public void testDecodeEndOfStream3() throws IOException, UnsupportedEncodingException { |
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| 126 | ByteArrayInputStream bis = new ByteArrayInputStream("012345\n".getBytes("US-ASCII")); |
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| 127 | QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(6, bis, false); |
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| 128 | assertEquals("012345\r\n", new String(read(decoder), "ISO8859-1")); |
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| 129 | } |
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| 130 | |
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| 131 | public void testDecodeEndOfStream4() throws IOException, UnsupportedEncodingException { |
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| 132 | ByteArrayInputStream bis = new ByteArrayInputStream("01234= ".getBytes("US-ASCII")); |
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| 133 | QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(6, bis, false); |
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| 134 | assertEquals("01234", new String(read(decoder), "ISO8859-1")); |
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| 135 | } |
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| 136 | |
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| 137 | public void testDecodeEndOfStream5() throws IOException, UnsupportedEncodingException { |
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| 138 | ByteArrayInputStream bis = new ByteArrayInputStream("01234=\r\n".getBytes("US-ASCII")); |
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| 139 | QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(6, bis, false); |
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| 140 | assertEquals("01234", new String(read(decoder), "ISO8859-1")); |
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| 141 | } |
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| 142 | |
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| 143 | public void testDecodeEndOfStream6() throws IOException, UnsupportedEncodingException { |
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| 144 | ByteArrayInputStream bis = new ByteArrayInputStream("01234\r\n".getBytes("US-ASCII")); |
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| 145 | QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(6, bis, false); |
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| 146 | assertEquals("01234\r\n", new String(read(decoder), "ISO8859-1")); |
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| 147 | } |
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| 148 | |
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| 149 | public void testDecodePrematureClose() throws IOException, UnsupportedEncodingException { |
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| 150 | ByteArrayInputStream bis = null; |
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| 151 | QuotedPrintableInputStream decoder = null; |
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| 152 | |
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| 153 | bis = new ByteArrayInputStream("=e1=e2=E3=E4\r\n".getBytes("US-ASCII")); |
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| 154 | decoder = new QuotedPrintableInputStream(bis); |
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| 155 | assertEquals('\u00e1', decoder.read()); |
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| 156 | assertEquals('\u00e2', decoder.read()); |
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| 157 | decoder.close(); |
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| 158 | |
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| 159 | try { |
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| 160 | decoder.read(); |
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| 161 | fail(); |
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| 162 | } catch (IOException expected) { |
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| 163 | } |
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| 164 | } |
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| 165 | |
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| 166 | private byte[] read(InputStream is) throws IOException { |
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| 167 | ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
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| 168 | int b; |
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| 169 | while ((b = is.read()) != -1) { |
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| 170 | bos.write(b); |
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| 171 | } |
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| 172 | return bos.toByteArray(); |
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| 173 | } |
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| 174 | } |
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