[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.io; |
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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 | |
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| 27 | import org.apache.james.mime4j.io.BufferedLineReaderInputStream; |
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| 28 | import org.apache.james.mime4j.io.LineReaderInputStream; |
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| 29 | import org.apache.james.mime4j.io.MimeBoundaryInputStream; |
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| 30 | import org.apache.james.mime4j.util.ByteArrayBuffer; |
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| 31 | |
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| 32 | |
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| 33 | import junit.framework.TestCase; |
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| 34 | |
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| 35 | public class MimeBoundaryInputStreamTest extends TestCase { |
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| 36 | |
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| 37 | public void testBasicReading() throws IOException { |
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| 38 | String text = "Line 1\r\nLine 2\r\n--boundary\r\n" + |
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| 39 | "Line 3\r\nLine 4\r\n--boundary--"; |
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| 40 | |
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| 41 | ByteArrayInputStream bis = new ByteArrayInputStream(text.getBytes("US-ASCII")); |
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| 42 | |
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| 43 | BufferedLineReaderInputStream buffer = new BufferedLineReaderInputStream(bis, 4096); |
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| 44 | |
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| 45 | MimeBoundaryInputStream mime1 = new MimeBoundaryInputStream(buffer, "boundary"); |
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| 46 | assertEquals("Line 1\r\nLine 2", read(mime1, 5)); |
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| 47 | |
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| 48 | assertFalse(mime1.isLastPart()); |
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| 49 | |
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| 50 | MimeBoundaryInputStream mime2 = new MimeBoundaryInputStream(buffer, "boundary"); |
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| 51 | assertEquals("Line 3\r\nLine 4", read(mime2, 5)); |
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| 52 | |
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| 53 | assertTrue(mime2.isLastPart()); |
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| 54 | } |
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| 55 | |
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| 56 | public void testLenientLineDelimiterReading() throws IOException { |
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| 57 | String text = "Line 1\r\nLine 2\n--boundary\n" + |
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| 58 | "Line 3\r\nLine 4\n--boundary--\n"; |
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| 59 | |
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| 60 | ByteArrayInputStream bis = new ByteArrayInputStream(text.getBytes("US-ASCII")); |
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| 61 | |
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| 62 | BufferedLineReaderInputStream buffer = new BufferedLineReaderInputStream(bis, 4096); |
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| 63 | |
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| 64 | MimeBoundaryInputStream mime1 = new MimeBoundaryInputStream(buffer, "boundary"); |
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| 65 | assertEquals("Line 1\r\nLine 2", read(mime1, 5)); |
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| 66 | |
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| 67 | assertFalse(mime1.isLastPart()); |
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| 68 | |
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| 69 | MimeBoundaryInputStream mime2 = new MimeBoundaryInputStream(buffer, "boundary"); |
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| 70 | assertEquals("Line 3\r\nLine 4", read(mime2, 5)); |
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| 71 | |
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| 72 | assertTrue(mime2.isLastPart()); |
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| 73 | } |
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| 74 | |
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| 75 | public void testBasicReadingSmallBuffer1() throws IOException { |
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| 76 | String text = "yadayadayadayadayadayadayadayadayadayadayadayadayadayadayadayada\r\n--boundary\r\n" + |
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| 77 | "blahblahblahblahblahblahblahblahblahblahblahblahblahblahblahblahblahblah\r\n--boundary--"; |
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| 78 | |
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| 79 | ByteArrayInputStream bis = new ByteArrayInputStream(text.getBytes("US-ASCII")); |
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| 80 | |
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| 81 | BufferedLineReaderInputStream buffer = new BufferedLineReaderInputStream(bis, 20); |
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| 82 | |
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| 83 | MimeBoundaryInputStream mime1 = new MimeBoundaryInputStream(buffer, "boundary"); |
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| 84 | assertEquals("yadayadayadayadayadayadayadayadayadayadayadayadayadayadayadayada", |
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| 85 | read(mime1, 10)); |
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| 86 | |
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| 87 | assertFalse(mime1.isLastPart()); |
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| 88 | |
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| 89 | MimeBoundaryInputStream mime2 = new MimeBoundaryInputStream(buffer, "boundary"); |
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| 90 | assertEquals("blahblahblahblahblahblahblahblahblahblahblahblahblahblahblahblahblahblah", |
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| 91 | read(mime2, 10)); |
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| 92 | |
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| 93 | assertTrue(mime2.isLastPart()); |
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| 94 | } |
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| 95 | |
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| 96 | public void testBasicReadingSmallBuffer2() throws IOException { |
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| 97 | String text = "yadayadayadayadayadayadayadayadayadayadayadayadayadayadayadayada\r\n--boundary\r\n" + |
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| 98 | "blahblahblahblahblahblahblahblahblahblahblahblahblahblahblahblahblahblah\r\n--boundary--"; |
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| 99 | |
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| 100 | ByteArrayInputStream bis = new ByteArrayInputStream(text.getBytes("US-ASCII")); |
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| 101 | |
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| 102 | BufferedLineReaderInputStream buffer = new BufferedLineReaderInputStream(bis, 20); |
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| 103 | |
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| 104 | MimeBoundaryInputStream mime1 = new MimeBoundaryInputStream(buffer, "boundary"); |
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| 105 | |
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| 106 | assertEquals("yadayadayadayadayadayadayadayadayadayadayadayadayadayadayadayada", |
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| 107 | read(mime1, 25)); |
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| 108 | |
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| 109 | assertFalse(mime1.isLastPart()); |
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| 110 | |
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| 111 | MimeBoundaryInputStream mime2 = new MimeBoundaryInputStream(buffer, "boundary"); |
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| 112 | assertEquals("blahblahblahblahblahblahblahblahblahblahblahblahblahblahblahblahblahblah", |
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| 113 | read(mime2, 25)); |
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| 114 | |
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| 115 | assertTrue(mime2.isLastPart()); |
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| 116 | } |
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| 117 | |
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| 118 | public void testBasicReadingByOneByte() throws IOException { |
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| 119 | String text = "Line 1\r\nLine 2\r\n--boundary\r\n" + |
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| 120 | "Line 3\r\nLine 4\r\n--boundary--"; |
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| 121 | |
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| 122 | ByteArrayInputStream bis = new ByteArrayInputStream(text.getBytes("US-ASCII")); |
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| 123 | |
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| 124 | BufferedLineReaderInputStream buffer = new BufferedLineReaderInputStream(bis, 4096); |
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| 125 | |
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| 126 | MimeBoundaryInputStream mime1 = new MimeBoundaryInputStream(buffer, "boundary"); |
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| 127 | assertEquals("Line 1\r\nLine 2", readByOneByte(mime1)); |
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| 128 | |
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| 129 | assertFalse(mime1.isLastPart()); |
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| 130 | |
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| 131 | MimeBoundaryInputStream mime2 = new MimeBoundaryInputStream(buffer, "boundary"); |
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| 132 | assertEquals("Line 3\r\nLine 4", readByOneByte(mime2)); |
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| 133 | |
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| 134 | assertTrue(mime2.isLastPart()); |
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| 135 | } |
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| 136 | |
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| 137 | /** |
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| 138 | * Tests that a CRLF immediately preceding a boundary isn't included in |
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| 139 | * the stream. |
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| 140 | */ |
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| 141 | public void testCRLFPrecedingBoundary() throws IOException { |
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| 142 | String text = "Line 1\r\nLine 2\r\n--boundary\r\n" + |
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| 143 | "Line 3\r\nLine 4\r\n\r\n--boundary\r\n"; |
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| 144 | |
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| 145 | ByteArrayInputStream bis = new ByteArrayInputStream(text.getBytes("US-ASCII")); |
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| 146 | |
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| 147 | BufferedLineReaderInputStream buffer = new BufferedLineReaderInputStream(bis, 4096); |
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| 148 | |
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| 149 | MimeBoundaryInputStream mime1 = new MimeBoundaryInputStream(buffer, "boundary"); |
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| 150 | assertEquals("Line 1\r\nLine 2", read(mime1, 5)); |
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| 151 | |
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| 152 | assertFalse(mime1.isLastPart()); |
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| 153 | |
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| 154 | MimeBoundaryInputStream mime2 = new MimeBoundaryInputStream(buffer, "boundary"); |
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| 155 | assertEquals("Line 3\r\nLine 4\r\n", read(mime2, 5)); |
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| 156 | |
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| 157 | assertFalse(mime2.isLastPart()); |
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| 158 | } |
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| 159 | |
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| 160 | private String readByOneByte(InputStream is) throws IOException { |
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| 161 | StringBuilder sb = new StringBuilder(); |
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| 162 | int b = 0; |
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| 163 | while ((b = is.read()) != -1) { |
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| 164 | sb.append((char) b); |
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| 165 | } |
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| 166 | return sb.toString(); |
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| 167 | } |
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| 168 | |
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| 169 | private String read(InputStream is, int bufsize) throws IOException { |
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| 170 | StringBuilder sb = new StringBuilder(); |
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| 171 | int l; |
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| 172 | byte[] tmp = new byte[bufsize]; |
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| 173 | while ((l = is.read(tmp)) != -1) { |
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| 174 | for (int i = 0; i < l; i++) { |
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| 175 | sb.append((char) tmp[i]); |
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| 176 | } |
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| 177 | } |
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| 178 | return sb.toString(); |
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| 179 | } |
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| 180 | |
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| 181 | /** |
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| 182 | * Tests that a stream containing only a boundary is empty. |
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| 183 | */ |
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| 184 | public void testImmediateBoundary() throws IOException { |
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| 185 | String text = "--boundary\r\n"; |
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| 186 | |
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| 187 | ByteArrayInputStream bis = new ByteArrayInputStream(text.getBytes()); |
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| 188 | BufferedLineReaderInputStream buffer = new BufferedLineReaderInputStream(bis, 4096); |
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| 189 | |
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| 190 | MimeBoundaryInputStream stream = |
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| 191 | new MimeBoundaryInputStream(buffer, "boundary"); |
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| 192 | assertEquals(-1, stream.read()); |
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| 193 | |
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| 194 | text = "\r\n--boundary\r\n"; |
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| 195 | |
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| 196 | bis = new ByteArrayInputStream(text.getBytes()); |
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| 197 | buffer = new BufferedLineReaderInputStream(bis, 4096); |
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| 198 | stream = |
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| 199 | new MimeBoundaryInputStream(buffer, "boundary"); |
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| 200 | assertEquals(-1, stream.read()); |
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| 201 | } |
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| 202 | |
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| 203 | /** |
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| 204 | * Tests that hasMoreParts behave as expected. |
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| 205 | */ |
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| 206 | public void testHasMoreParts() throws IOException { |
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| 207 | String text = "--boundary--\r\n"; |
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| 208 | |
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| 209 | ByteArrayInputStream bis = new ByteArrayInputStream(text.getBytes()); |
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| 210 | BufferedLineReaderInputStream buffer = new BufferedLineReaderInputStream(bis, 4096); |
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| 211 | MimeBoundaryInputStream stream = |
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| 212 | new MimeBoundaryInputStream(buffer, "boundary"); |
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| 213 | assertEquals(-1, stream.read()); |
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| 214 | assertTrue(stream.isLastPart()); |
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| 215 | } |
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| 216 | |
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| 217 | /** |
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| 218 | * Tests that a stream containing only a boundary is empty. |
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| 219 | */ |
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| 220 | public void testPrefixIsBoundary() throws IOException { |
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| 221 | String text = "Line 1\r\n\r\n--boundaryyada\r\n"; |
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| 222 | |
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| 223 | ByteArrayInputStream bis = new ByteArrayInputStream(text.getBytes()); |
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| 224 | BufferedLineReaderInputStream buffer = new BufferedLineReaderInputStream(bis, 4096); |
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| 225 | MimeBoundaryInputStream stream = |
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| 226 | new MimeBoundaryInputStream(buffer, "boundary"); |
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| 227 | assertEquals("Line 1\r\n", read(stream, 100)); |
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| 228 | |
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| 229 | text = "--boundaryyada\r\n"; |
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| 230 | |
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| 231 | bis = new ByteArrayInputStream(text.getBytes()); |
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| 232 | buffer = new BufferedLineReaderInputStream(bis, 4096); |
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| 233 | stream = new MimeBoundaryInputStream(buffer, "boundary"); |
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| 234 | assertEquals(-1, stream.read()); |
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| 235 | } |
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| 236 | |
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| 237 | |
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| 238 | public void testBasicReadLine() throws Exception { |
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| 239 | |
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| 240 | String[] teststrs = new String[5]; |
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| 241 | teststrs[0] = "Hello\r\n"; |
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| 242 | teststrs[1] = "This string should be much longer than the size of the input buffer " + |
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| 243 | "which is only 20 bytes for this test\r\n"; |
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| 244 | StringBuilder sb = new StringBuilder(); |
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| 245 | for (int i = 0; i < 15; i++) { |
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| 246 | sb.append("123456789 "); |
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| 247 | } |
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| 248 | sb.append("and stuff like that\r\n"); |
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| 249 | teststrs[2] = sb.toString(); |
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| 250 | teststrs[3] = "\r\n"; |
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| 251 | teststrs[4] = "And goodbye\r\n"; |
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| 252 | |
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| 253 | String term = "\r\n--1234\r\n"; |
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| 254 | |
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| 255 | ByteArrayOutputStream outstream = new ByteArrayOutputStream(); |
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| 256 | |
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| 257 | for (String teststr : teststrs) { |
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| 258 | outstream.write(teststr.getBytes("US-ASCII")); |
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| 259 | } |
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| 260 | outstream.write(term.getBytes("US-ASCII")); |
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| 261 | byte[] raw = outstream.toByteArray(); |
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| 262 | |
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| 263 | BufferedLineReaderInputStream inbuffer = new BufferedLineReaderInputStream(new ByteArrayInputStream(raw), 20); |
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| 264 | LineReaderInputStream instream = new MimeBoundaryInputStream(inbuffer, "1234"); |
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| 265 | |
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| 266 | ByteArrayBuffer linebuf = new ByteArrayBuffer(8); |
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| 267 | for (String teststr : teststrs) { |
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| 268 | linebuf.clear(); |
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| 269 | instream.readLine(linebuf); |
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| 270 | String s = new String(linebuf.toByteArray(), "US-ASCII"); |
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| 271 | assertEquals(teststr, s); |
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| 272 | } |
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| 273 | assertEquals(-1, instream.readLine(linebuf)); |
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| 274 | assertEquals(-1, instream.readLine(linebuf)); |
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| 275 | } |
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| 276 | |
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| 277 | public void testReadEmptyLine() throws Exception { |
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| 278 | |
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| 279 | String teststr = "01234567890123456789\n\n\r\n\r\r\n\n\n\n\n\n--1234\r\n"; |
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| 280 | byte[] raw = teststr.getBytes("US-ASCII"); |
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| 281 | |
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| 282 | BufferedLineReaderInputStream inbuffer = new BufferedLineReaderInputStream(new ByteArrayInputStream(raw), 20); |
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| 283 | LineReaderInputStream instream = new MimeBoundaryInputStream(inbuffer, "1234"); |
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| 284 | |
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| 285 | ByteArrayBuffer linebuf = new ByteArrayBuffer(8); |
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| 286 | linebuf.clear(); |
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| 287 | instream.readLine(linebuf); |
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| 288 | String s = new String(linebuf.toByteArray(), "US-ASCII"); |
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| 289 | assertEquals("01234567890123456789\n", s); |
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| 290 | |
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| 291 | linebuf.clear(); |
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| 292 | instream.readLine(linebuf); |
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| 293 | s = new String(linebuf.toByteArray(), "US-ASCII"); |
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| 294 | assertEquals("\n", s); |
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| 295 | |
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| 296 | linebuf.clear(); |
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| 297 | instream.readLine(linebuf); |
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| 298 | s = new String(linebuf.toByteArray(), "US-ASCII"); |
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| 299 | assertEquals("\r\n", s); |
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| 300 | |
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| 301 | linebuf.clear(); |
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| 302 | instream.readLine(linebuf); |
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| 303 | s = new String(linebuf.toByteArray(), "US-ASCII"); |
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| 304 | assertEquals("\r\r\n", s); |
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| 305 | |
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| 306 | linebuf.clear(); |
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| 307 | instream.readLine(linebuf); |
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| 308 | s = new String(linebuf.toByteArray(), "US-ASCII"); |
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| 309 | assertEquals("\n", s); |
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| 310 | |
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| 311 | linebuf.clear(); |
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| 312 | instream.readLine(linebuf); |
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| 313 | s = new String(linebuf.toByteArray(), "US-ASCII"); |
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| 314 | assertEquals("\n", s); |
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| 315 | |
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| 316 | linebuf.clear(); |
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| 317 | instream.readLine(linebuf); |
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| 318 | s = new String(linebuf.toByteArray(), "US-ASCII"); |
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| 319 | assertEquals("\n", s); |
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| 320 | |
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| 321 | linebuf.clear(); |
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| 322 | instream.readLine(linebuf); |
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| 323 | s = new String(linebuf.toByteArray(), "US-ASCII"); |
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| 324 | assertEquals("\n", s); |
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| 325 | |
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| 326 | assertEquals(-1, instream.readLine(linebuf)); |
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| 327 | assertEquals(-1, instream.readLine(linebuf)); |
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| 328 | } |
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| 329 | |
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| 330 | public void testboundaryLongerThanBuffer() throws IOException { |
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| 331 | String text = "--looooooooooooooooooooooooooong-boundary\r\n"; |
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| 332 | |
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| 333 | ByteArrayInputStream bis = new ByteArrayInputStream(text.getBytes()); |
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| 334 | BufferedLineReaderInputStream buffer = new BufferedLineReaderInputStream(bis, 10); |
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| 335 | |
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| 336 | try { |
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| 337 | new MimeBoundaryInputStream(buffer, "looooooooooooooooooooooooooong-boundary"); |
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| 338 | fail("IllegalArgumentException should have been thrown"); |
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| 339 | } catch (IllegalArgumentException expected) { |
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| 340 | } |
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| 341 | } |
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| 342 | |
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| 343 | } |
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