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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