1 | /* | |
2 | * Copyright 2006 - 2013 | |
3 | * Stefan Balev <stefan.balev@graphstream-project.org> | |
4 | * Julien Baudry <julien.baudry@graphstream-project.org> | |
5 | * Antoine Dutot <antoine.dutot@graphstream-project.org> | |
6 | * Yoann Pign�� <yoann.pigne@graphstream-project.org> | |
7 | * Guilhelm Savin <guilhelm.savin@graphstream-project.org> | |
8 | * | |
9 | * This file is part of GraphStream <http://graphstream-project.org>. | |
10 | * | |
11 | * GraphStream is a library whose purpose is to handle static or dynamic | |
12 | * graph, create them from scratch, file or any source and display them. | |
13 | * | |
14 | * This program is free software distributed under the terms of two licenses, the | |
15 | * CeCILL-C license that fits European law, and the GNU Lesser General Public | |
16 | * License. You can use, modify and/ or redistribute the software under the terms | |
17 | * of the CeCILL-C license as circulated by CEA, CNRS and INRIA at the following | |
18 | * URL <http://www.cecill.info> or under the terms of the GNU LGPL as published by | |
19 | * the Free Software Foundation, either version 3 of the License, or (at your | |
20 | * option) any later version. | |
21 | * | |
22 | * This program is distributed in the hope that it will be useful, but WITHOUT ANY | |
23 | * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A | |
24 | * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. | |
25 | * | |
26 | * You should have received a copy of the GNU Lesser General Public License | |
27 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
28 | * | |
29 | * The fact that you are presently reading this means that you have had | |
30 | * knowledge of the CeCILL-C and LGPL licenses and that you accept their terms. | |
31 | */ | |
32 | package org.graphstream.stream.netstream.packing; | |
33 | /** | |
34 | * <p>Encodes and decodes to and from Base64 notation.</p> | |
35 | * <p>Homepage: <a href="http://iharder.net/base64">http://iharder.net/base64</a>.</p> | |
36 | * | |
37 | * <p>Example:</p> | |
38 | * | |
39 | * <code>String encoded = Base64.encode( myByteArray );</code> | |
40 | * <br /> | |
41 | * <code>byte[] myByteArray = Base64.decode( encoded );</code> | |
42 | * | |
43 | * <p>The <tt>options</tt> parameter, which appears in a few places, is used to pass | |
44 | * several pieces of information to the encoder. In the "higher level" methods such as | |
45 | * encodeBytes( bytes, options ) the options parameter can be used to indicate such | |
46 | * things as first gzipping the bytes before encoding them, not inserting linefeeds, | |
47 | * and encoding using the URL-safe and Ordered dialects.</p> | |
48 | * | |
49 | * <p>Note, according to <a href="http://www.faqs.org/rfcs/rfc3548.html">RFC3548</a>, | |
50 | * Section 2.1, implementations should not add line feeds unless explicitly told | |
51 | * to do so. I've got Base64 set to this behavior now, although earlier versions | |
52 | * broke lines by default.</p> | |
53 | * | |
54 | * <p>The constants defined in Base64 can be OR-ed together to combine options, so you | |
55 | * might make a call like this:</p> | |
56 | * | |
57 | * <code>String encoded = Base64.encodeBytes( mybytes, Base64.GZIP | Base64.DO_BREAK_LINES );</code> | |
58 | * <p>to compress the data before encoding it and then making the output have newline characters.</p> | |
59 | * <p>Also...</p> | |
60 | * <code>String encoded = Base64.encodeBytes( crazyString.getBytes() );</code> | |
61 | * | |
62 | * | |
63 | * | |
64 | * <p> | |
65 | * Change Log: | |
66 | * </p> | |
67 | * <ul> | |
68 | * <li>v2.3.7 - Fixed subtle bug when base 64 input stream contained the | |
69 | * value 01111111, which is an invalid base 64 character but should not | |
70 | * throw an ArrayIndexOutOfBoundsException either. Led to discovery of | |
71 | * mishandling (or potential for better handling) of other bad input | |
72 | * characters. You should now get an IOException if you try decoding | |
73 | * something that has bad characters in it.</li> | |
74 | * <li>v2.3.6 - Fixed bug when breaking lines and the final byte of the encoded | |
75 | * string ended in the last column; the buffer was not properly shrunk and | |
76 | * contained an extra (null) byte that made it into the string.</li> | |
77 | * <li>v2.3.5 - Fixed bug in {@link #encodeFromFile} where estimated buffer size | |
78 | * was wrong for files of size 31, 34, and 37 bytes.</li> | |
79 | * <li>v2.3.4 - Fixed bug when working with gzipped streams whereby flushing | |
80 | * the Base64.OutputStream closed the Base64 encoding (by padding with equals | |
81 | * signs) too soon. Also added an option to suppress the automatic decoding | |
82 | * of gzipped streams. Also added experimental support for specifying a | |
83 | * class loader when using the | |
84 | * {@link #decodeToObject(java.lang.String, int, java.lang.ClassLoader)} | |
85 | * method.</li> | |
86 | * <li>v2.3.3 - Changed default char encoding to US-ASCII which reduces the internal Java | |
87 | * footprint with its CharEncoders and so forth. Fixed some javadocs that were | |
88 | * inconsistent. Removed imports and specified things like java.io.IOException | |
89 | * explicitly inline.</li> | |
90 | * <li>v2.3.2 - Reduced memory footprint! Finally refined the "guessing" of how big the | |
91 | * final encoded data will be so that the code doesn't have to create two output | |
92 | * arrays: an oversized initial one and then a final, exact-sized one. Big win | |
93 | * when using the {@link #encodeBytesToBytes(byte[])} family of methods (and not | |
94 | * using the gzip options which uses a different mechanism with streams and stuff).</li> | |
95 | * <li>v2.3.1 - Added {@link #encodeBytesToBytes(byte[], int, int, int)} and some | |
96 | * similar helper methods to be more efficient with memory by not returning a | |
97 | * String but just a byte array.</li> | |
98 | * <li>v2.3 - <strong>This is not a drop-in replacement!</strong> This is two years of comments | |
99 | * and bug fixes queued up and finally executed. Thanks to everyone who sent | |
100 | * me stuff, and I'm sorry I wasn't able to distribute your fixes to everyone else. | |
101 | * Much bad coding was cleaned up including throwing exceptions where necessary | |
102 | * instead of returning null values or something similar. Here are some changes | |
103 | * that may affect you: | |
104 | * <ul> | |
105 | * <li><em>Does not break lines, by default.</em> This is to keep in compliance with | |
106 | * <a href="http://www.faqs.org/rfcs/rfc3548.html">RFC3548</a>.</li> | |
107 | * <li><em>Throws exceptions instead of returning null values.</em> Because some operations | |
108 | * (especially those that may permit the GZIP option) use IO streams, there | |
109 | * is a possiblity of an java.io.IOException being thrown. After some discussion and | |
110 | * thought, I've changed the behavior of the methods to throw java.io.IOExceptions | |
111 | * rather than return null if ever there's an error. I think this is more | |
112 | * appropriate, though it will require some changes to your code. Sorry, | |
113 | * it should have been done this way to begin with.</li> | |
114 | * <li><em>Removed all references to System.out, System.err, and the like.</em> | |
115 | * Shame on me. All I can say is sorry they were ever there.</li> | |
116 | * <li><em>Throws NullPointerExceptions and IllegalArgumentExceptions</em> as needed | |
117 | * such as when passed arrays are null or offsets are invalid.</li> | |
118 | * <li>Cleaned up as much javadoc as I could to avoid any javadoc warnings. | |
119 | * This was especially annoying before for people who were thorough in their | |
120 | * own projects and then had gobs of javadoc warnings on this file.</li> | |
121 | * </ul> | |
122 | * <li>v2.2.1 - Fixed bug using URL_SAFE and ORDERED encodings. Fixed bug | |
123 | * when using very small files (~< 40 bytes).</li> | |
124 | * <li>v2.2 - Added some helper methods for encoding/decoding directly from | |
125 | * one file to the next. Also added a main() method to support command line | |
126 | * encoding/decoding from one file to the next. Also added these Base64 dialects: | |
127 | * <ol> | |
128 | * <li>The default is RFC3548 format.</li> | |
129 | * <li>Calling Base64.setFormat(Base64.BASE64_FORMAT.URLSAFE_FORMAT) generates | |
130 | * URL and file name friendly format as described in Section 4 of RFC3548. | |
131 | * http://www.faqs.org/rfcs/rfc3548.html</li> | |
132 | * <li>Calling Base64.setFormat(Base64.BASE64_FORMAT.ORDERED_FORMAT) generates | |
133 | * URL and file name friendly format that preserves lexical ordering as described | |
134 | * in http://www.faqs.org/qa/rfcc-1940.html</li> | |
135 | * </ol> | |
136 | * Special thanks to Jim Kellerman at <a href="http://www.powerset.com/">http://www.powerset.com/</a> | |
137 | * for contributing the new Base64 dialects. | |
138 | * </li> | |
139 | * | |
140 | * <li>v2.1 - Cleaned up javadoc comments and unused variables and methods. Added | |
141 | * some convenience methods for reading and writing to and from files.</li> | |
142 | * <li>v2.0.2 - Now specifies UTF-8 encoding in places where the code fails on systems | |
143 | * with other encodings (like EBCDIC).</li> | |
144 | * <li>v2.0.1 - Fixed an error when decoding a single byte, that is, when the | |
145 | * encoded data was a single byte.</li> | |
146 | * <li>v2.0 - I got rid of methods that used booleans to set options. | |
147 | * Now everything is more consolidated and cleaner. The code now detects | |
148 | * when data that's being decoded is gzip-compressed and will decompress it | |
149 | * automatically. Generally things are cleaner. You'll probably have to | |
150 | * change some method calls that you were making to support the new | |
151 | * options format (<tt>int</tt>s that you "OR" together).</li> | |
152 | * <li>v1.5.1 - Fixed bug when decompressing and decoding to a | |
153 | * byte[] using <tt>decode( String s, boolean gzipCompressed )</tt>. | |
154 | * Added the ability to "suspend" encoding in the Output Stream so | |
155 | * you can turn on and off the encoding if you need to embed base64 | |
156 | * data in an otherwise "normal" stream (like an XML file).</li> | |
157 | * <li>v1.5 - Output stream pases on flush() command but doesn't do anything itself. | |
158 | * This helps when using GZIP streams. | |
159 | * Added the ability to GZip-compress objects before encoding them.</li> | |
160 | * <li>v1.4 - Added helper methods to read/write files.</li> | |
161 | * <li>v1.3.6 - Fixed OutputStream.flush() so that 'position' is reset.</li> | |
162 | * <li>v1.3.5 - Added flag to turn on and off line breaks. Fixed bug in input stream | |
163 | * where last buffer being read, if not completely full, was not returned.</li> | |
164 | * <li>v1.3.4 - Fixed when "improperly padded stream" error was thrown at the wrong time.</li> | |
165 | * <li>v1.3.3 - Fixed I/O streams which were totally messed up.</li> | |
166 | * </ul> | |
167 | * | |
168 | * <p> | |
169 | * I am placing this code in the Public Domain. Do with it as you will. | |
170 | * This software comes with no guarantees or warranties but with | |
171 | * plenty of well-wishing instead! | |
172 | * Please visit <a href="http://iharder.net/base64">http://iharder.net/base64</a> | |
173 | * periodically to check for updates or to contribute improvements. | |
174 | * </p> | |
175 | * | |
176 | * @author Robert Harder | |
177 | * @author rob@iharder.net | |
178 | * @version 2.3.7 | |
179 | */ | |
180 | public class Base64 | |
181 | { | |
182 | | |
183 | /* ******** P U B L I C F I E L D S ******** */ | |
184 | | |
185 | | |
186 | /** No options specified. Value is zero. */ | |
187 | public final static int NO_OPTIONS = 0; | |
188 | | |
189 | /** Specify encoding in first bit. Value is one. */ | |
190 | public final static int ENCODE = 1; | |
191 | | |
192 | | |
193 | /** Specify decoding in first bit. Value is zero. */ | |
194 | public final static int DECODE = 0; | |
195 | | |
196 | ||
197 | /** Specify that data should be gzip-compressed in second bit. Value is two. */ | |
198 | public final static int GZIP = 2; | |
199 | ||
200 | /** Specify that gzipped data should <em>not</em> be automatically gunzipped. */ | |
201 | public final static int DONT_GUNZIP = 4; | |
202 | | |
203 | | |
204 | /** Do break lines when encoding. Value is 8. */ | |
205 | public final static int DO_BREAK_LINES = 8; | |
206 | | |
207 | /** | |
208 | * Encode using Base64-like encoding that is URL- and Filename-safe as described | |
209 | * in Section 4 of RFC3548: | |
210 | * <a href="http://www.faqs.org/rfcs/rfc3548.html">http://www.faqs.org/rfcs/rfc3548.html</a>. | |
211 | * It is important to note that data encoded this way is <em>not</em> officially valid Base64, | |
212 | * or at the very least should not be called Base64 without also specifying that is | |
213 | * was encoded using the URL- and Filename-safe dialect. | |
214 | */ | |
215 | public final static int URL_SAFE = 16; | |
216 | ||
217 | ||
218 | /** | |
219 | * Encode using the special "ordered" dialect of Base64 described here: | |
220 | * <a href="http://www.faqs.org/qa/rfcc-1940.html">http://www.faqs.org/qa/rfcc-1940.html</a>. | |
221 | */ | |
222 | public final static int ORDERED = 32; | |
223 | | |
224 | | |
225 | /* ******** P R I V A T E F I E L D S ******** */ | |
226 | | |
227 | | |
228 | /** Maximum line length (76) of Base64 output. */ | |
229 | private final static int MAX_LINE_LENGTH = 76; | |
230 | | |
231 | | |
232 | /** The equals sign (=) as a byte. */ | |
233 | private final static byte EQUALS_SIGN = (byte)'='; | |
234 | | |
235 | | |
236 | /** The new line character (\n) as a byte. */ | |
237 | private final static byte NEW_LINE = (byte)'\n'; | |
238 | | |
239 | | |
240 | /** Preferred encoding. */ | |
241 | private final static String PREFERRED_ENCODING = "US-ASCII"; | |
242 | | |
243 | | |
244 | private final static byte WHITE_SPACE_ENC = -5; // Indicates white space in encoding | |
245 | private final static byte EQUALS_SIGN_ENC = -1; // Indicates equals sign in encoding | |
246 | | |
247 | | |
248 | /* ******** S T A N D A R D B A S E 6 4 A L P H A B E T ******** */ | |
249 | | |
250 | /** The 64 valid Base64 values. */ | |
251 | /* Host platform me be something funny like EBCDIC, so we hardcode these values. */ | |
252 | private final static byte[] _STANDARD_ALPHABET = { | |
253 | (byte)'A', (byte)'B', (byte)'C', (byte)'D', (byte)'E', (byte)'F', (byte)'G', | |
254 | (byte)'H', (byte)'I', (byte)'J', (byte)'K', (byte)'L', (byte)'M', (byte)'N', | |
255 | (byte)'O', (byte)'P', (byte)'Q', (byte)'R', (byte)'S', (byte)'T', (byte)'U', | |
256 | (byte)'V', (byte)'W', (byte)'X', (byte)'Y', (byte)'Z', | |
257 | (byte)'a', (byte)'b', (byte)'c', (byte)'d', (byte)'e', (byte)'f', (byte)'g', | |
258 | (byte)'h', (byte)'i', (byte)'j', (byte)'k', (byte)'l', (byte)'m', (byte)'n', | |
259 | (byte)'o', (byte)'p', (byte)'q', (byte)'r', (byte)'s', (byte)'t', (byte)'u', | |
260 | (byte)'v', (byte)'w', (byte)'x', (byte)'y', (byte)'z', | |
261 | (byte)'0', (byte)'1', (byte)'2', (byte)'3', (byte)'4', (byte)'5', | |
262 | (byte)'6', (byte)'7', (byte)'8', (byte)'9', (byte)'+', (byte)'/' | |
263 | }; | |
264 | | |
265 | | |
266 | /** | |
267 | * Translates a Base64 value to either its 6-bit reconstruction value | |
268 | * or a negative number indicating some other meaning. | |
269 | **/ | |
270 | private final static byte[] _STANDARD_DECODABET = { | |
271 | -9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 0 - 8 | |
272 | -5,-5, // Whitespace: Tab and Linefeed | |
273 | -9,-9, // Decimal 11 - 12 | |
274 | -5, // Whitespace: Carriage Return | |
275 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 14 - 26 | |
276 | -9,-9,-9,-9,-9, // Decimal 27 - 31 | |
277 | -5, // Whitespace: Space | |
278 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 33 - 42 | |
279 | 62, // Plus sign at decimal 43 | |
280 | -9,-9,-9, // Decimal 44 - 46 | |
281 | 63, // Slash at decimal 47 | |
282 | 52,53,54,55,56,57,58,59,60,61, // Numbers zero through nine | |
283 | -9,-9,-9, // Decimal 58 - 60 | |
284 | -1, // Equals sign at decimal 61 | |
285 | -9,-9,-9, // Decimal 62 - 64 | |
286 | 0,1,2,3,4,5,6,7,8,9,10,11,12,13, // Letters 'A' through 'N' | |
287 | 14,15,16,17,18,19,20,21,22,23,24,25, // Letters 'O' through 'Z' | |
288 | -9,-9,-9,-9,-9,-9, // Decimal 91 - 96 | |
289 | 26,27,28,29,30,31,32,33,34,35,36,37,38, // Letters 'a' through 'm' | |
290 | 39,40,41,42,43,44,45,46,47,48,49,50,51, // Letters 'n' through 'z' | |
291 | -9,-9,-9,-9,-9 // Decimal 123 - 127 | |
292 | ,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 128 - 139 | |
293 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 140 - 152 | |
294 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 153 - 165 | |
295 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 166 - 178 | |
296 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 179 - 191 | |
297 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 192 - 204 | |
298 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 205 - 217 | |
299 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 218 - 230 | |
300 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 231 - 243 | |
301 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9 // Decimal 244 - 255 | |
302 | }; | |
303 | | |
304 | | |
305 | /* ******** U R L S A F E B A S E 6 4 A L P H A B E T ******** */ | |
306 | | |
307 | /** | |
308 | * Used in the URL- and Filename-safe dialect described in Section 4 of RFC3548: | |
309 | * <a href="http://www.faqs.org/rfcs/rfc3548.html">http://www.faqs.org/rfcs/rfc3548.html</a>. | |
310 | * Notice that the last two bytes become "hyphen" and "underscore" instead of "plus" and "slash." | |
311 | */ | |
312 | private final static byte[] _URL_SAFE_ALPHABET = { | |
313 | (byte)'A', (byte)'B', (byte)'C', (byte)'D', (byte)'E', (byte)'F', (byte)'G', | |
314 | (byte)'H', (byte)'I', (byte)'J', (byte)'K', (byte)'L', (byte)'M', (byte)'N', | |
315 | (byte)'O', (byte)'P', (byte)'Q', (byte)'R', (byte)'S', (byte)'T', (byte)'U', | |
316 | (byte)'V', (byte)'W', (byte)'X', (byte)'Y', (byte)'Z', | |
317 | (byte)'a', (byte)'b', (byte)'c', (byte)'d', (byte)'e', (byte)'f', (byte)'g', | |
318 | (byte)'h', (byte)'i', (byte)'j', (byte)'k', (byte)'l', (byte)'m', (byte)'n', | |
319 | (byte)'o', (byte)'p', (byte)'q', (byte)'r', (byte)'s', (byte)'t', (byte)'u', | |
320 | (byte)'v', (byte)'w', (byte)'x', (byte)'y', (byte)'z', | |
321 | (byte)'0', (byte)'1', (byte)'2', (byte)'3', (byte)'4', (byte)'5', | |
322 | (byte)'6', (byte)'7', (byte)'8', (byte)'9', (byte)'-', (byte)'_' | |
323 | }; | |
324 | | |
325 | /** | |
326 | * Used in decoding URL- and Filename-safe dialects of Base64. | |
327 | */ | |
328 | private final static byte[] _URL_SAFE_DECODABET = { | |
329 | -9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 0 - 8 | |
330 | -5,-5, // Whitespace: Tab and Linefeed | |
331 | -9,-9, // Decimal 11 - 12 | |
332 | -5, // Whitespace: Carriage Return | |
333 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 14 - 26 | |
334 | -9,-9,-9,-9,-9, // Decimal 27 - 31 | |
335 | -5, // Whitespace: Space | |
336 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 33 - 42 | |
337 | -9, // Plus sign at decimal 43 | |
338 | -9, // Decimal 44 | |
339 | 62, // Minus sign at decimal 45 | |
340 | -9, // Decimal 46 | |
341 | -9, // Slash at decimal 47 | |
342 | 52,53,54,55,56,57,58,59,60,61, // Numbers zero through nine | |
343 | -9,-9,-9, // Decimal 58 - 60 | |
344 | -1, // Equals sign at decimal 61 | |
345 | -9,-9,-9, // Decimal 62 - 64 | |
346 | 0,1,2,3,4,5,6,7,8,9,10,11,12,13, // Letters 'A' through 'N' | |
347 | 14,15,16,17,18,19,20,21,22,23,24,25, // Letters 'O' through 'Z' | |
348 | -9,-9,-9,-9, // Decimal 91 - 94 | |
349 | 63, // Underscore at decimal 95 | |
350 | -9, // Decimal 96 | |
351 | 26,27,28,29,30,31,32,33,34,35,36,37,38, // Letters 'a' through 'm' | |
352 | 39,40,41,42,43,44,45,46,47,48,49,50,51, // Letters 'n' through 'z' | |
353 | -9,-9,-9,-9,-9 // Decimal 123 - 127 | |
354 | ,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 128 - 139 | |
355 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 140 - 152 | |
356 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 153 - 165 | |
357 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 166 - 178 | |
358 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 179 - 191 | |
359 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 192 - 204 | |
360 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 205 - 217 | |
361 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 218 - 230 | |
362 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 231 - 243 | |
363 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9 // Decimal 244 - 255 | |
364 | }; | |
365 | ||
366 | ||
367 | ||
368 | /* ******** O R D E R E D B A S E 6 4 A L P H A B E T ******** */ | |
369 | ||
370 | /** | |
371 | * I don't get the point of this technique, but someone requested it, | |
372 | * and it is described here: | |
373 | * <a href="http://www.faqs.org/qa/rfcc-1940.html">http://www.faqs.org/qa/rfcc-1940.html</a>. | |
374 | */ | |
375 | private final static byte[] _ORDERED_ALPHABET = { | |
376 | (byte)'-', | |
377 | (byte)'0', (byte)'1', (byte)'2', (byte)'3', (byte)'4', | |
378 | (byte)'5', (byte)'6', (byte)'7', (byte)'8', (byte)'9', | |
379 | (byte)'A', (byte)'B', (byte)'C', (byte)'D', (byte)'E', (byte)'F', (byte)'G', | |
380 | (byte)'H', (byte)'I', (byte)'J', (byte)'K', (byte)'L', (byte)'M', (byte)'N', | |
381 | (byte)'O', (byte)'P', (byte)'Q', (byte)'R', (byte)'S', (byte)'T', (byte)'U', | |
382 | (byte)'V', (byte)'W', (byte)'X', (byte)'Y', (byte)'Z', | |
383 | (byte)'_', | |
384 | (byte)'a', (byte)'b', (byte)'c', (byte)'d', (byte)'e', (byte)'f', (byte)'g', | |
385 | (byte)'h', (byte)'i', (byte)'j', (byte)'k', (byte)'l', (byte)'m', (byte)'n', | |
386 | (byte)'o', (byte)'p', (byte)'q', (byte)'r', (byte)'s', (byte)'t', (byte)'u', | |
387 | (byte)'v', (byte)'w', (byte)'x', (byte)'y', (byte)'z' | |
388 | }; | |
389 | | |
390 | /** | |
391 | * Used in decoding the "ordered" dialect of Base64. | |
392 | */ | |
393 | private final static byte[] _ORDERED_DECODABET = { | |
394 | -9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 0 - 8 | |
395 | -5,-5, // Whitespace: Tab and Linefeed | |
396 | -9,-9, // Decimal 11 - 12 | |
397 | -5, // Whitespace: Carriage Return | |
398 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 14 - 26 | |
399 | -9,-9,-9,-9,-9, // Decimal 27 - 31 | |
400 | -5, // Whitespace: Space | |
401 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 33 - 42 | |
402 | -9, // Plus sign at decimal 43 | |
403 | -9, // Decimal 44 | |
404 | 0, // Minus sign at decimal 45 | |
405 | -9, // Decimal 46 | |
406 | -9, // Slash at decimal 47 | |
407 | 1,2,3,4,5,6,7,8,9,10, // Numbers zero through nine | |
408 | -9,-9,-9, // Decimal 58 - 60 | |
409 | -1, // Equals sign at decimal 61 | |
410 | -9,-9,-9, // Decimal 62 - 64 | |
411 | 11,12,13,14,15,16,17,18,19,20,21,22,23, // Letters 'A' through 'M' | |
412 | 24,25,26,27,28,29,30,31,32,33,34,35,36, // Letters 'N' through 'Z' | |
413 | -9,-9,-9,-9, // Decimal 91 - 94 | |
414 | 37, // Underscore at decimal 95 | |
415 | -9, // Decimal 96 | |
416 | 38,39,40,41,42,43,44,45,46,47,48,49,50, // Letters 'a' through 'm' | |
417 | 51,52,53,54,55,56,57,58,59,60,61,62,63, // Letters 'n' through 'z' | |
418 | -9,-9,-9,-9,-9 // Decimal 123 - 127 | |
419 | ,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 128 - 139 | |
420 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 140 - 152 | |
421 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 153 - 165 | |
422 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 166 - 178 | |
423 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 179 - 191 | |
424 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 192 - 204 | |
425 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 205 - 217 | |
426 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 218 - 230 | |
427 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9, // Decimal 231 - 243 | |
428 | -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9 // Decimal 244 - 255 | |
429 | }; | |
430 | ||
431 | | |
432 | /* ******** D E T E R M I N E W H I C H A L H A B E T ******** */ | |
433 | ||
434 | ||
435 | /** | |
436 | * Returns one of the _SOMETHING_ALPHABET byte arrays depending on | |
437 | * the options specified. | |
438 | * It's possible, though silly, to specify ORDERED <b>and</b> URLSAFE | |
439 | * in which case one of them will be picked, though there is | |
440 | * no guarantee as to which one will be picked. | |
441 | */ | |
442 | private final static byte[] getAlphabet( int options ) { | |
443 |
2
1. getAlphabet : Replaced bitwise AND with OR → NO_COVERAGE 2. getAlphabet : negated conditional → NO_COVERAGE |
if ((options & URL_SAFE) == URL_SAFE) { |
444 |
1
1. getAlphabet : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::getAlphabet to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return _URL_SAFE_ALPHABET; |
445 |
2
1. getAlphabet : Replaced bitwise AND with OR → NO_COVERAGE 2. getAlphabet : negated conditional → NO_COVERAGE |
} else if ((options & ORDERED) == ORDERED) { |
446 |
1
1. getAlphabet : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::getAlphabet to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return _ORDERED_ALPHABET; |
447 | } else { | |
448 |
1
1. getAlphabet : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::getAlphabet to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return _STANDARD_ALPHABET; |
449 | } | |
450 | } // end getAlphabet | |
451 | ||
452 | ||
453 | /** | |
454 | * Returns one of the _SOMETHING_DECODABET byte arrays depending on | |
455 | * the options specified. | |
456 | * It's possible, though silly, to specify ORDERED and URL_SAFE | |
457 | * in which case one of them will be picked, though there is | |
458 | * no guarantee as to which one will be picked. | |
459 | */ | |
460 | private final static byte[] getDecodabet( int options ) { | |
461 |
2
1. getDecodabet : Replaced bitwise AND with OR → NO_COVERAGE 2. getDecodabet : negated conditional → NO_COVERAGE |
if( (options & URL_SAFE) == URL_SAFE) { |
462 |
1
1. getDecodabet : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::getDecodabet to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return _URL_SAFE_DECODABET; |
463 |
2
1. getDecodabet : Replaced bitwise AND with OR → NO_COVERAGE 2. getDecodabet : negated conditional → NO_COVERAGE |
} else if ((options & ORDERED) == ORDERED) { |
464 |
1
1. getDecodabet : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::getDecodabet to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return _ORDERED_DECODABET; |
465 | } else { | |
466 |
1
1. getDecodabet : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::getDecodabet to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return _STANDARD_DECODABET; |
467 | } | |
468 | } // end getAlphabet | |
469 | ||
470 | ||
471 | | |
472 | /** Defeats instantiation. */ | |
473 | private Base64(){} | |
474 | | |
475 | ||
476 | | |
477 | | |
478 | /* ******** E N C O D I N G M E T H O D S ******** */ | |
479 | | |
480 | | |
481 | /** | |
482 | * Encodes up to the first three bytes of array <var>threeBytes</var> | |
483 | * and returns a four-byte array in Base64 notation. | |
484 | * The actual number of significant bytes in your array is | |
485 | * given by <var>numSigBytes</var>. | |
486 | * The array <var>threeBytes</var> needs only be as big as | |
487 | * <var>numSigBytes</var>. | |
488 | * Code can reuse a byte array by passing a four-byte array as <var>b4</var>. | |
489 | * | |
490 | * @param b4 A reusable byte array to reduce array instantiation | |
491 | * @param threeBytes the array to convert | |
492 | * @param numSigBytes the number of significant bytes in your array | |
493 | * @return four byte array in Base64 notation. | |
494 | * @since 1.5.1 | |
495 | */ | |
496 | private static byte[] encode3to4( byte[] b4, byte[] threeBytes, int numSigBytes, int options ) { | |
497 | encode3to4( threeBytes, 0, numSigBytes, b4, 0, options ); | |
498 |
1
1. encode3to4 : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::encode3to4 to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return b4; |
499 | } // end encode3to4 | |
500 | ||
501 | | |
502 | /** | |
503 | * <p>Encodes up to three bytes of the array <var>source</var> | |
504 | * and writes the resulting four Base64 bytes to <var>destination</var>. | |
505 | * The source and destination arrays can be manipulated | |
506 | * anywhere along their length by specifying | |
507 | * <var>srcOffset</var> and <var>destOffset</var>. | |
508 | * This method does not check to make sure your arrays | |
509 | * are large enough to accomodate <var>srcOffset</var> + 3 for | |
510 | * the <var>source</var> array or <var>destOffset</var> + 4 for | |
511 | * the <var>destination</var> array. | |
512 | * The actual number of significant bytes in your array is | |
513 | * given by <var>numSigBytes</var>.</p> | |
514 | * <p>This is the lowest level of the encoding methods with | |
515 | * all possible parameters.</p> | |
516 | * | |
517 | * @param source the array to convert | |
518 | * @param srcOffset the index where conversion begins | |
519 | * @param numSigBytes the number of significant bytes in your array | |
520 | * @param destination the array to hold the conversion | |
521 | * @param destOffset the index where output will be put | |
522 | * @return the <var>destination</var> array | |
523 | * @since 1.3 | |
524 | */ | |
525 | private static byte[] encode3to4( | |
526 | byte[] source, int srcOffset, int numSigBytes, | |
527 | byte[] destination, int destOffset, int options ) { | |
528 | | |
529 | byte[] ALPHABET = getAlphabet( options ); | |
530 | | |
531 | // 1 2 3 | |
532 | // 01234567890123456789012345678901 Bit position | |
533 | // --------000000001111111122222222 Array position from threeBytes | |
534 | // --------| || || || | Six bit groups to index ALPHABET | |
535 | // >>18 >>12 >> 6 >> 0 Right shift necessary | |
536 | // 0x3f 0x3f 0x3f Additional AND | |
537 | | |
538 | // Create buffer with zero-padding if there are only one or two | |
539 | // significant bytes passed in the array. | |
540 | // We have to shift left 24 in order to flush out the 1's that appear | |
541 | // when Java treats a value as negative that is cast from a byte to an int. | |
542 |
6
1. encode3to4 : changed conditional boundary → NO_COVERAGE 2. encode3to4 : Replaced Shift Left with Shift Right → NO_COVERAGE 3. encode3to4 : Replaced Unsigned Shift Right with Shift Left → NO_COVERAGE 4. encode3to4 : Replaced bitwise OR with AND → NO_COVERAGE 5. encode3to4 : Replaced bitwise OR with AND → NO_COVERAGE 6. encode3to4 : negated conditional → NO_COVERAGE |
int inBuff = ( numSigBytes > 0 ? ((source[ srcOffset ] << 24) >>> 8) : 0 ) |
543 |
5
1. encode3to4 : changed conditional boundary → NO_COVERAGE 2. encode3to4 : Replaced integer addition with subtraction → NO_COVERAGE 3. encode3to4 : Replaced Shift Left with Shift Right → NO_COVERAGE 4. encode3to4 : Replaced Unsigned Shift Right with Shift Left → NO_COVERAGE 5. encode3to4 : negated conditional → NO_COVERAGE |
| ( numSigBytes > 1 ? ((source[ srcOffset + 1 ] << 24) >>> 16) : 0 ) |
544 |
5
1. encode3to4 : changed conditional boundary → NO_COVERAGE 2. encode3to4 : Replaced integer addition with subtraction → NO_COVERAGE 3. encode3to4 : Replaced Shift Left with Shift Right → NO_COVERAGE 4. encode3to4 : Replaced Unsigned Shift Right with Shift Left → NO_COVERAGE 5. encode3to4 : negated conditional → NO_COVERAGE |
| ( numSigBytes > 2 ? ((source[ srcOffset + 2 ] << 24) >>> 24) : 0 ); |
545 | ||
546 | switch( numSigBytes ) | |
547 | { | |
548 | case 3: | |
549 |
1
1. encode3to4 : Replaced Unsigned Shift Right with Shift Left → NO_COVERAGE |
destination[ destOffset ] = ALPHABET[ (inBuff >>> 18) ]; |
550 |
3
1. encode3to4 : Replaced integer addition with subtraction → NO_COVERAGE 2. encode3to4 : Replaced Unsigned Shift Right with Shift Left → NO_COVERAGE 3. encode3to4 : Replaced bitwise AND with OR → NO_COVERAGE |
destination[ destOffset + 1 ] = ALPHABET[ (inBuff >>> 12) & 0x3f ]; |
551 |
3
1. encode3to4 : Replaced integer addition with subtraction → NO_COVERAGE 2. encode3to4 : Replaced Unsigned Shift Right with Shift Left → NO_COVERAGE 3. encode3to4 : Replaced bitwise AND with OR → NO_COVERAGE |
destination[ destOffset + 2 ] = ALPHABET[ (inBuff >>> 6) & 0x3f ]; |
552 |
2
1. encode3to4 : Replaced integer addition with subtraction → NO_COVERAGE 2. encode3to4 : Replaced bitwise AND with OR → NO_COVERAGE |
destination[ destOffset + 3 ] = ALPHABET[ (inBuff ) & 0x3f ]; |
553 |
1
1. encode3to4 : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::encode3to4 to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return destination; |
554 | | |
555 | case 2: | |
556 |
1
1. encode3to4 : Replaced Unsigned Shift Right with Shift Left → NO_COVERAGE |
destination[ destOffset ] = ALPHABET[ (inBuff >>> 18) ]; |
557 |
3
1. encode3to4 : Replaced integer addition with subtraction → NO_COVERAGE 2. encode3to4 : Replaced Unsigned Shift Right with Shift Left → NO_COVERAGE 3. encode3to4 : Replaced bitwise AND with OR → NO_COVERAGE |
destination[ destOffset + 1 ] = ALPHABET[ (inBuff >>> 12) & 0x3f ]; |
558 |
3
1. encode3to4 : Replaced integer addition with subtraction → NO_COVERAGE 2. encode3to4 : Replaced Unsigned Shift Right with Shift Left → NO_COVERAGE 3. encode3to4 : Replaced bitwise AND with OR → NO_COVERAGE |
destination[ destOffset + 2 ] = ALPHABET[ (inBuff >>> 6) & 0x3f ]; |
559 |
1
1. encode3to4 : Replaced integer addition with subtraction → NO_COVERAGE |
destination[ destOffset + 3 ] = EQUALS_SIGN; |
560 |
1
1. encode3to4 : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::encode3to4 to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return destination; |
561 | | |
562 | case 1: | |
563 |
1
1. encode3to4 : Replaced Unsigned Shift Right with Shift Left → NO_COVERAGE |
destination[ destOffset ] = ALPHABET[ (inBuff >>> 18) ]; |
564 |
3
1. encode3to4 : Replaced integer addition with subtraction → NO_COVERAGE 2. encode3to4 : Replaced Unsigned Shift Right with Shift Left → NO_COVERAGE 3. encode3to4 : Replaced bitwise AND with OR → NO_COVERAGE |
destination[ destOffset + 1 ] = ALPHABET[ (inBuff >>> 12) & 0x3f ]; |
565 |
1
1. encode3to4 : Replaced integer addition with subtraction → NO_COVERAGE |
destination[ destOffset + 2 ] = EQUALS_SIGN; |
566 |
1
1. encode3to4 : Replaced integer addition with subtraction → NO_COVERAGE |
destination[ destOffset + 3 ] = EQUALS_SIGN; |
567 |
1
1. encode3to4 : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::encode3to4 to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return destination; |
568 | | |
569 | default: | |
570 |
1
1. encode3to4 : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::encode3to4 to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return destination; |
571 | } // end switch | |
572 | } // end encode3to4 | |
573 | ||
574 | ||
575 | ||
576 | /** | |
577 | * Performs Base64 encoding on the <code>raw</code> ByteBuffer, | |
578 | * writing it to the <code>encoded</code> ByteBuffer. | |
579 | * This is an experimental feature. Currently it does not | |
580 | * pass along any options (such as {@link #DO_BREAK_LINES} | |
581 | * or {@link #GZIP}. | |
582 | * | |
583 | * @param raw input buffer | |
584 | * @param encoded output buffer | |
585 | * @since 2.3 | |
586 | */ | |
587 | public static void encode( java.nio.ByteBuffer raw, java.nio.ByteBuffer encoded ){ | |
588 | byte[] raw3 = new byte[3]; | |
589 | byte[] enc4 = new byte[4]; | |
590 | ||
591 |
1
1. encode : negated conditional → NO_COVERAGE |
while( raw.hasRemaining() ){ |
592 | int rem = Math.min(3,raw.remaining()); | |
593 | raw.get(raw3,0,rem); | |
594 | Base64.encode3to4(enc4, raw3, rem, Base64.NO_OPTIONS ); | |
595 | encoded.put(enc4); | |
596 | } // end input remaining | |
597 | } | |
598 | ||
599 | ||
600 | /** | |
601 | * Performs Base64 encoding on the <code>raw</code> ByteBuffer, | |
602 | * writing it to the <code>encoded</code> CharBuffer. | |
603 | * This is an experimental feature. Currently it does not | |
604 | * pass along any options (such as {@link #DO_BREAK_LINES} | |
605 | * or {@link #GZIP}. | |
606 | * | |
607 | * @param raw input buffer | |
608 | * @param encoded output buffer | |
609 | * @since 2.3 | |
610 | */ | |
611 | public static void encode( java.nio.ByteBuffer raw, java.nio.CharBuffer encoded ){ | |
612 | byte[] raw3 = new byte[3]; | |
613 | byte[] enc4 = new byte[4]; | |
614 | ||
615 |
1
1. encode : negated conditional → NO_COVERAGE |
while( raw.hasRemaining() ){ |
616 | int rem = Math.min(3,raw.remaining()); | |
617 | raw.get(raw3,0,rem); | |
618 | Base64.encode3to4(enc4, raw3, rem, Base64.NO_OPTIONS ); | |
619 |
3
1. encode : changed conditional boundary → NO_COVERAGE 2. encode : Changed increment from 1 to -1 → NO_COVERAGE 3. encode : negated conditional → NO_COVERAGE |
for( int i = 0; i < 4; i++ ){ |
620 |
1
1. encode : Replaced bitwise AND with OR → NO_COVERAGE |
encoded.put( (char)(enc4[i] & 0xFF) ); |
621 | } | |
622 | } // end input remaining | |
623 | } | |
624 | ||
625 | ||
626 | | |
627 | | |
628 | /** | |
629 | * Serializes an object and returns the Base64-encoded | |
630 | * version of that serialized object. | |
631 | * | |
632 | * <p>As of v 2.3, if the object | |
633 | * cannot be serialized or there is another error, | |
634 | * the method will throw an java.io.IOException. <b>This is new to v2.3!</b> | |
635 | * In earlier versions, it just returned a null value, but | |
636 | * in retrospect that's a pretty poor way to handle it.</p> | |
637 | * | |
638 | * The object is not GZip-compressed before being encoded. | |
639 | * | |
640 | * @param serializableObject The object to encode | |
641 | * @return The Base64-encoded object | |
642 | * @throws java.io.IOException if there is an error | |
643 | * @throws NullPointerException if serializedObject is null | |
644 | * @since 1.4 | |
645 | */ | |
646 | public static String encodeObject( java.io.Serializable serializableObject ) | |
647 | throws java.io.IOException { | |
648 |
1
1. encodeObject : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::encodeObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return encodeObject( serializableObject, NO_OPTIONS ); |
649 | } // end encodeObject | |
650 | | |
651 | ||
652 | ||
653 | /** | |
654 | * Serializes an object and returns the Base64-encoded | |
655 | * version of that serialized object. | |
656 | * | |
657 | * <p>As of v 2.3, if the object | |
658 | * cannot be serialized or there is another error, | |
659 | * the method will throw an java.io.IOException. <b>This is new to v2.3!</b> | |
660 | * In earlier versions, it just returned a null value, but | |
661 | * in retrospect that's a pretty poor way to handle it.</p> | |
662 | * | |
663 | * The object is not GZip-compressed before being encoded. | |
664 | * <p> | |
665 | * Example options:<pre> | |
666 | * GZIP: gzip-compresses object before encoding it. | |
667 | * DO_BREAK_LINES: break lines at 76 characters | |
668 | * </pre> | |
669 | * <p> | |
670 | * Example: <code>encodeObject( myObj, Base64.GZIP )</code> or | |
671 | * <p> | |
672 | * Example: <code>encodeObject( myObj, Base64.GZIP | Base64.DO_BREAK_LINES )</code> | |
673 | * | |
674 | * @param serializableObject The object to encode | |
675 | * @param options Specified options | |
676 | * @return The Base64-encoded object | |
677 | * @see Base64#GZIP | |
678 | * @see Base64#DO_BREAK_LINES | |
679 | * @throws java.io.IOException if there is an error | |
680 | * @since 2.0 | |
681 | */ | |
682 | public static String encodeObject( java.io.Serializable serializableObject, int options ) | |
683 | throws java.io.IOException { | |
684 | ||
685 |
1
1. encodeObject : negated conditional → NO_COVERAGE |
if( serializableObject == null ){ |
686 | throw new NullPointerException( "Cannot serialize a null object." ); | |
687 | } // end if: null | |
688 | | |
689 | // Streams | |
690 | java.io.ByteArrayOutputStream baos = null; | |
691 | java.io.OutputStream b64os = null; | |
692 | java.util.zip.GZIPOutputStream gzos = null; | |
693 | java.io.ObjectOutputStream oos = null; | |
694 | | |
695 | | |
696 | try { | |
697 | // ObjectOutputStream -> (GZIP) -> Base64 -> ByteArrayOutputStream | |
698 | baos = new java.io.ByteArrayOutputStream(); | |
699 |
1
1. encodeObject : Replaced bitwise OR with AND → NO_COVERAGE |
b64os = new Base64.OutputStream( baos, ENCODE | options ); |
700 |
2
1. encodeObject : Replaced bitwise AND with OR → NO_COVERAGE 2. encodeObject : negated conditional → NO_COVERAGE |
if( (options & GZIP) != 0 ){ |
701 | // Gzip | |
702 | gzos = new java.util.zip.GZIPOutputStream(b64os); | |
703 | oos = new java.io.ObjectOutputStream( gzos ); | |
704 | } else { | |
705 | // Not gzipped | |
706 | oos = new java.io.ObjectOutputStream( b64os ); | |
707 | } | |
708 |
1
1. encodeObject : removed call to java/io/ObjectOutputStream::writeObject → NO_COVERAGE |
oos.writeObject( serializableObject ); |
709 | } // end try | |
710 | catch( java.io.IOException e ) { | |
711 | // Catch it and then throw it immediately so that | |
712 | // the finally{} block is called for cleanup. | |
713 | throw e; | |
714 | } // end catch | |
715 | finally { | |
716 |
2
1. encodeObject : removed call to java/io/ObjectOutputStream::close → NO_COVERAGE 2. encodeObject : removed call to java/io/ObjectOutputStream::close → NO_COVERAGE |
try{ oos.close(); } catch( Exception e ){} |
717 |
2
1. encodeObject : removed call to java/util/zip/GZIPOutputStream::close → NO_COVERAGE 2. encodeObject : removed call to java/util/zip/GZIPOutputStream::close → NO_COVERAGE |
try{ gzos.close(); } catch( Exception e ){} |
718 |
2
1. encodeObject : removed call to java/io/OutputStream::close → NO_COVERAGE 2. encodeObject : removed call to java/io/OutputStream::close → NO_COVERAGE |
try{ b64os.close(); } catch( Exception e ){} |
719 |
2
1. encodeObject : removed call to java/io/ByteArrayOutputStream::close → NO_COVERAGE 2. encodeObject : removed call to java/io/ByteArrayOutputStream::close → NO_COVERAGE |
try{ baos.close(); } catch( Exception e ){} |
720 | } // end finally | |
721 | | |
722 | // Return value according to relevant encoding. | |
723 | try { | |
724 |
1
1. encodeObject : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::encodeObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return new String( baos.toByteArray(), PREFERRED_ENCODING ); |
725 | } // end try | |
726 | catch (java.io.UnsupportedEncodingException uue){ | |
727 | // Fall back to some Java default | |
728 |
1
1. encodeObject : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::encodeObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return new String( baos.toByteArray() ); |
729 | } // end catch | |
730 | | |
731 | } // end encode | |
732 | | |
733 | | |
734 | ||
735 | /** | |
736 | * Encodes a byte array into Base64 notation. | |
737 | * Does not GZip-compress data. | |
738 | * | |
739 | * @param source The data to convert | |
740 | * @return The data in Base64-encoded form | |
741 | * @throws NullPointerException if source array is null | |
742 | * @since 1.4 | |
743 | */ | |
744 | public static String encodeBytes( byte[] source ) { | |
745 | // Since we're not going to have the GZIP encoding turned on, | |
746 | // we're not going to have an java.io.IOException thrown, so | |
747 | // we should not force the user to have to catch it. | |
748 | String encoded = null; | |
749 | try { | |
750 | encoded = encodeBytes(source, 0, source.length, NO_OPTIONS); | |
751 | } catch (java.io.IOException ex) { | |
752 | assert false : ex.getMessage(); | |
753 | } // end catch | |
754 | assert encoded != null; | |
755 |
1
1. encodeBytes : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::encodeBytes to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return encoded; |
756 | } // end encodeBytes | |
757 | | |
758 | ||
759 | ||
760 | /** | |
761 | * Encodes a byte array into Base64 notation. | |
762 | * <p> | |
763 | * Example options:<pre> | |
764 | * GZIP: gzip-compresses object before encoding it. | |
765 | * DO_BREAK_LINES: break lines at 76 characters | |
766 | * <i>Note: Technically, this makes your encoding non-compliant.</i> | |
767 | * </pre> | |
768 | * <p> | |
769 | * Example: <code>encodeBytes( myData, Base64.GZIP )</code> or | |
770 | * <p> | |
771 | * Example: <code>encodeBytes( myData, Base64.GZIP | Base64.DO_BREAK_LINES )</code> | |
772 | * | |
773 | * | |
774 | * <p>As of v 2.3, if there is an error with the GZIP stream, | |
775 | * the method will throw an java.io.IOException. <b>This is new to v2.3!</b> | |
776 | * In earlier versions, it just returned a null value, but | |
777 | * in retrospect that's a pretty poor way to handle it.</p> | |
778 | * | |
779 | * | |
780 | * @param source The data to convert | |
781 | * @param options Specified options | |
782 | * @return The Base64-encoded data as a String | |
783 | * @see Base64#GZIP | |
784 | * @see Base64#DO_BREAK_LINES | |
785 | * @throws java.io.IOException if there is an error | |
786 | * @throws NullPointerException if source array is null | |
787 | * @since 2.0 | |
788 | */ | |
789 | public static String encodeBytes( byte[] source, int options ) throws java.io.IOException { | |
790 |
1
1. encodeBytes : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::encodeBytes to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return encodeBytes( source, 0, source.length, options ); |
791 | } // end encodeBytes | |
792 | | |
793 | | |
794 | /** | |
795 | * Encodes a byte array into Base64 notation. | |
796 | * Does not GZip-compress data. | |
797 | * | |
798 | * <p>As of v 2.3, if there is an error, | |
799 | * the method will throw an java.io.IOException. <b>This is new to v2.3!</b> | |
800 | * In earlier versions, it just returned a null value, but | |
801 | * in retrospect that's a pretty poor way to handle it.</p> | |
802 | * | |
803 | * | |
804 | * @param source The data to convert | |
805 | * @param off Offset in array where conversion should begin | |
806 | * @param len Length of data to convert | |
807 | * @return The Base64-encoded data as a String | |
808 | * @throws NullPointerException if source array is null | |
809 | * @throws IllegalArgumentException if source array, offset, or length are invalid | |
810 | * @since 1.4 | |
811 | */ | |
812 | public static String encodeBytes( byte[] source, int off, int len ) { | |
813 | // Since we're not going to have the GZIP encoding turned on, | |
814 | // we're not going to have an java.io.IOException thrown, so | |
815 | // we should not force the user to have to catch it. | |
816 | String encoded = null; | |
817 | try { | |
818 | encoded = encodeBytes( source, off, len, NO_OPTIONS ); | |
819 | } catch (java.io.IOException ex) { | |
820 | assert false : ex.getMessage(); | |
821 | } // end catch | |
822 | assert encoded != null; | |
823 |
1
1. encodeBytes : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::encodeBytes to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return encoded; |
824 | } // end encodeBytes | |
825 | | |
826 | | |
827 | ||
828 | /** | |
829 | * Encodes a byte array into Base64 notation. | |
830 | * <p> | |
831 | * Example options:<pre> | |
832 | * GZIP: gzip-compresses object before encoding it. | |
833 | * DO_BREAK_LINES: break lines at 76 characters | |
834 | * <i>Note: Technically, this makes your encoding non-compliant.</i> | |
835 | * </pre> | |
836 | * <p> | |
837 | * Example: <code>encodeBytes( myData, Base64.GZIP )</code> or | |
838 | * <p> | |
839 | * Example: <code>encodeBytes( myData, Base64.GZIP | Base64.DO_BREAK_LINES )</code> | |
840 | * | |
841 | * | |
842 | * <p>As of v 2.3, if there is an error with the GZIP stream, | |
843 | * the method will throw an java.io.IOException. <b>This is new to v2.3!</b> | |
844 | * In earlier versions, it just returned a null value, but | |
845 | * in retrospect that's a pretty poor way to handle it.</p> | |
846 | * | |
847 | * | |
848 | * @param source The data to convert | |
849 | * @param off Offset in array where conversion should begin | |
850 | * @param len Length of data to convert | |
851 | * @param options Specified options | |
852 | * @return The Base64-encoded data as a String | |
853 | * @see Base64#GZIP | |
854 | * @see Base64#DO_BREAK_LINES | |
855 | * @throws java.io.IOException if there is an error | |
856 | * @throws NullPointerException if source array is null | |
857 | * @throws IllegalArgumentException if source array, offset, or length are invalid | |
858 | * @since 2.0 | |
859 | */ | |
860 | public static String encodeBytes( byte[] source, int off, int len, int options ) throws java.io.IOException { | |
861 | byte[] encoded = encodeBytesToBytes( source, off, len, options ); | |
862 | ||
863 | // Return value according to relevant encoding. | |
864 | try { | |
865 |
1
1. encodeBytes : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::encodeBytes to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return new String( encoded, PREFERRED_ENCODING ); |
866 | } // end try | |
867 | catch (java.io.UnsupportedEncodingException uue) { | |
868 |
1
1. encodeBytes : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::encodeBytes to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return new String( encoded ); |
869 | } // end catch | |
870 | | |
871 | } // end encodeBytes | |
872 | ||
873 | ||
874 | ||
875 | ||
876 | /** | |
877 | * Similar to {@link #encodeBytes(byte[])} but returns | |
878 | * a byte array instead of instantiating a String. This is more efficient | |
879 | * if you're working with I/O streams and have large data sets to encode. | |
880 | * | |
881 | * | |
882 | * @param source The data to convert | |
883 | * @return The Base64-encoded data as a byte[] (of ASCII characters) | |
884 | * @throws NullPointerException if source array is null | |
885 | * @since 2.3.1 | |
886 | */ | |
887 | public static byte[] encodeBytesToBytes( byte[] source ) { | |
888 | byte[] encoded = null; | |
889 | try { | |
890 | encoded = encodeBytesToBytes( source, 0, source.length, Base64.NO_OPTIONS ); | |
891 | } catch( java.io.IOException ex ) { | |
892 | assert false : "IOExceptions only come from GZipping, which is turned off: " + ex.getMessage(); | |
893 | } | |
894 |
1
1. encodeBytesToBytes : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::encodeBytesToBytes to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return encoded; |
895 | } | |
896 | ||
897 | ||
898 | /** | |
899 | * Similar to {@link #encodeBytes(byte[], int, int, int)} but returns | |
900 | * a byte array instead of instantiating a String. This is more efficient | |
901 | * if you're working with I/O streams and have large data sets to encode. | |
902 | * | |
903 | * | |
904 | * @param source The data to convert | |
905 | * @param off Offset in array where conversion should begin | |
906 | * @param len Length of data to convert | |
907 | * @param options Specified options | |
908 | * @return The Base64-encoded data as a String | |
909 | * @see Base64#GZIP | |
910 | * @see Base64#DO_BREAK_LINES | |
911 | * @throws java.io.IOException if there is an error | |
912 | * @throws NullPointerException if source array is null | |
913 | * @throws IllegalArgumentException if source array, offset, or length are invalid | |
914 | * @since 2.3.1 | |
915 | */ | |
916 | public static byte[] encodeBytesToBytes( byte[] source, int off, int len, int options ) throws java.io.IOException { | |
917 | ||
918 |
1
1. encodeBytesToBytes : negated conditional → NO_COVERAGE |
if( source == null ){ |
919 | throw new NullPointerException( "Cannot serialize a null array." ); | |
920 | } // end if: null | |
921 | ||
922 |
2
1. encodeBytesToBytes : changed conditional boundary → NO_COVERAGE 2. encodeBytesToBytes : negated conditional → NO_COVERAGE |
if( off < 0 ){ |
923 | throw new IllegalArgumentException( "Cannot have negative offset: " + off ); | |
924 | } // end if: off < 0 | |
925 | ||
926 |
2
1. encodeBytesToBytes : changed conditional boundary → NO_COVERAGE 2. encodeBytesToBytes : negated conditional → NO_COVERAGE |
if( len < 0 ){ |
927 | throw new IllegalArgumentException( "Cannot have length offset: " + len ); | |
928 | } // end if: len < 0 | |
929 | ||
930 |
3
1. encodeBytesToBytes : changed conditional boundary → NO_COVERAGE 2. encodeBytesToBytes : Replaced integer addition with subtraction → NO_COVERAGE 3. encodeBytesToBytes : negated conditional → NO_COVERAGE |
if( off + len > source.length ){ |
931 | throw new IllegalArgumentException( | |
932 | String.format( "Cannot have offset of %d and length of %d with array of length %d", off,len,source.length)); | |
933 | } // end if: off < 0 | |
934 | ||
935 | ||
936 | ||
937 | // Compress? | |
938 |
2
1. encodeBytesToBytes : Replaced bitwise AND with OR → NO_COVERAGE 2. encodeBytesToBytes : negated conditional → NO_COVERAGE |
if( (options & GZIP) != 0 ) { |
939 | java.io.ByteArrayOutputStream baos = null; | |
940 | java.util.zip.GZIPOutputStream gzos = null; | |
941 | Base64.OutputStream b64os = null; | |
942 | ||
943 | try { | |
944 | // GZip -> Base64 -> ByteArray | |
945 | baos = new java.io.ByteArrayOutputStream(); | |
946 |
1
1. encodeBytesToBytes : Replaced bitwise OR with AND → NO_COVERAGE |
b64os = new Base64.OutputStream( baos, ENCODE | options ); |
947 | gzos = new java.util.zip.GZIPOutputStream( b64os ); | |
948 | ||
949 |
1
1. encodeBytesToBytes : removed call to java/util/zip/GZIPOutputStream::write → NO_COVERAGE |
gzos.write( source, off, len ); |
950 |
1
1. encodeBytesToBytes : removed call to java/util/zip/GZIPOutputStream::close → NO_COVERAGE |
gzos.close(); |
951 | } // end try | |
952 | catch( java.io.IOException e ) { | |
953 | // Catch it and then throw it immediately so that | |
954 | // the finally{} block is called for cleanup. | |
955 | throw e; | |
956 | } // end catch | |
957 | finally { | |
958 |
2
1. encodeBytesToBytes : removed call to java/util/zip/GZIPOutputStream::close → NO_COVERAGE 2. encodeBytesToBytes : removed call to java/util/zip/GZIPOutputStream::close → NO_COVERAGE |
try{ gzos.close(); } catch( Exception e ){} |
959 |
2
1. encodeBytesToBytes : removed call to org/graphstream/stream/netstream/packing/Base64$OutputStream::close → NO_COVERAGE 2. encodeBytesToBytes : removed call to org/graphstream/stream/netstream/packing/Base64$OutputStream::close → NO_COVERAGE |
try{ b64os.close(); } catch( Exception e ){} |
960 |
2
1. encodeBytesToBytes : removed call to java/io/ByteArrayOutputStream::close → NO_COVERAGE 2. encodeBytesToBytes : removed call to java/io/ByteArrayOutputStream::close → NO_COVERAGE |
try{ baos.close(); } catch( Exception e ){} |
961 | } // end finally | |
962 | ||
963 |
1
1. encodeBytesToBytes : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::encodeBytesToBytes to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return baos.toByteArray(); |
964 | } // end if: compress | |
965 | ||
966 | // Else, don't compress. Better not to use streams at all then. | |
967 | else { | |
968 |
2
1. encodeBytesToBytes : Replaced bitwise AND with OR → NO_COVERAGE 2. encodeBytesToBytes : negated conditional → NO_COVERAGE |
boolean breakLines = (options & DO_BREAK_LINES) != 0; |
969 | ||
970 | //int len43 = len * 4 / 3; | |
971 | //byte[] outBuff = new byte[ ( len43 ) // Main 4:3 | |
972 | // + ( (len % 3) > 0 ? 4 : 0 ) // Account for padding | |
973 | // + (breakLines ? ( len43 / MAX_LINE_LENGTH ) : 0) ]; // New lines | |
974 | // Try to determine more precisely how big the array needs to be. | |
975 | // If we get it right, we don't have to do an array copy, and | |
976 | // we save a bunch of memory. | |
977 |
6
1. encodeBytesToBytes : changed conditional boundary → NO_COVERAGE 2. encodeBytesToBytes : Replaced integer division with multiplication → NO_COVERAGE 3. encodeBytesToBytes : Replaced integer multiplication with division → NO_COVERAGE 4. encodeBytesToBytes : Replaced integer modulus with multiplication → NO_COVERAGE 5. encodeBytesToBytes : Replaced integer addition with subtraction → NO_COVERAGE 6. encodeBytesToBytes : negated conditional → NO_COVERAGE |
int encLen = ( len / 3 ) * 4 + ( len % 3 > 0 ? 4 : 0 ); // Bytes needed for actual encoding |
978 |
1
1. encodeBytesToBytes : negated conditional → NO_COVERAGE |
if( breakLines ){ |
979 |
2
1. encodeBytesToBytes : Replaced integer division with multiplication → NO_COVERAGE 2. encodeBytesToBytes : Replaced integer addition with subtraction → NO_COVERAGE |
encLen += encLen / MAX_LINE_LENGTH; // Plus extra newline characters |
980 | } | |
981 | byte[] outBuff = new byte[ encLen ]; | |
982 | ||
983 | ||
984 | int d = 0; | |
985 | int e = 0; | |
986 |
1
1. encodeBytesToBytes : Replaced integer subtraction with addition → NO_COVERAGE |
int len2 = len - 2; |
987 | int lineLength = 0; | |
988 |
4
1. encodeBytesToBytes : changed conditional boundary → NO_COVERAGE 2. encodeBytesToBytes : Changed increment from 3 to -3 → NO_COVERAGE 3. encodeBytesToBytes : Changed increment from 4 to -4 → NO_COVERAGE 4. encodeBytesToBytes : negated conditional → NO_COVERAGE |
for( ; d < len2; d+=3, e+=4 ) { |
989 |
1
1. encodeBytesToBytes : Replaced integer addition with subtraction → NO_COVERAGE |
encode3to4( source, d+off, 3, outBuff, e, options ); |
990 | ||
991 |
1
1. encodeBytesToBytes : Changed increment from 4 to -4 → NO_COVERAGE |
lineLength += 4; |
992 |
3
1. encodeBytesToBytes : changed conditional boundary → NO_COVERAGE 2. encodeBytesToBytes : negated conditional → NO_COVERAGE 3. encodeBytesToBytes : negated conditional → NO_COVERAGE |
if( breakLines && lineLength >= MAX_LINE_LENGTH ) |
993 | { | |
994 |
1
1. encodeBytesToBytes : Replaced integer addition with subtraction → NO_COVERAGE |
outBuff[e+4] = NEW_LINE; |
995 |
1
1. encodeBytesToBytes : Changed increment from 1 to -1 → NO_COVERAGE |
e++; |
996 | lineLength = 0; | |
997 | } // end if: end of line | |
998 | } // en dfor: each piece of array | |
999 | ||
1000 |
2
1. encodeBytesToBytes : changed conditional boundary → NO_COVERAGE 2. encodeBytesToBytes : negated conditional → NO_COVERAGE |
if( d < len ) { |
1001 |
2
1. encodeBytesToBytes : Replaced integer addition with subtraction → NO_COVERAGE 2. encodeBytesToBytes : Replaced integer subtraction with addition → NO_COVERAGE |
encode3to4( source, d+off, len - d, outBuff, e, options ); |
1002 |
1
1. encodeBytesToBytes : Changed increment from 4 to -4 → NO_COVERAGE |
e += 4; |
1003 | } // end if: some padding needed | |
1004 | ||
1005 | ||
1006 | // Only resize array if we didn't guess it right. | |
1007 |
3
1. encodeBytesToBytes : changed conditional boundary → NO_COVERAGE 2. encodeBytesToBytes : Replaced integer subtraction with addition → NO_COVERAGE 3. encodeBytesToBytes : negated conditional → NO_COVERAGE |
if( e <= outBuff.length - 1 ){ |
1008 | // If breaking lines and the last byte falls right at | |
1009 | // the line length (76 bytes per line), there will be | |
1010 | // one extra byte, and the array will need to be resized. | |
1011 | // Not too bad of an estimate on array size, I'd say. | |
1012 | byte[] finalOut = new byte[e]; | |
1013 |
1
1. encodeBytesToBytes : removed call to java/lang/System::arraycopy → NO_COVERAGE |
System.arraycopy(outBuff,0, finalOut,0,e); |
1014 | //System.err.println("Having to resize array from " + outBuff.length + " to " + e ); | |
1015 |
1
1. encodeBytesToBytes : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::encodeBytesToBytes to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return finalOut; |
1016 | } else { | |
1017 | //System.err.println("No need to resize array."); | |
1018 |
1
1. encodeBytesToBytes : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::encodeBytesToBytes to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return outBuff; |
1019 | } | |
1020 | | |
1021 | } // end else: don't compress | |
1022 | ||
1023 | } // end encodeBytesToBytes | |
1024 | | |
1025 | ||
1026 | | |
1027 | | |
1028 | | |
1029 | /* ******** D E C O D I N G M E T H O D S ******** */ | |
1030 | | |
1031 | | |
1032 | /** | |
1033 | * Decodes four bytes from array <var>source</var> | |
1034 | * and writes the resulting bytes (up to three of them) | |
1035 | * to <var>destination</var>. | |
1036 | * The source and destination arrays can be manipulated | |
1037 | * anywhere along their length by specifying | |
1038 | * <var>srcOffset</var> and <var>destOffset</var>. | |
1039 | * This method does not check to make sure your arrays | |
1040 | * are large enough to accomodate <var>srcOffset</var> + 4 for | |
1041 | * the <var>source</var> array or <var>destOffset</var> + 3 for | |
1042 | * the <var>destination</var> array. | |
1043 | * This method returns the actual number of bytes that | |
1044 | * were converted from the Base64 encoding. | |
1045 | * <p>This is the lowest level of the decoding methods with | |
1046 | * all possible parameters.</p> | |
1047 | * | |
1048 | * | |
1049 | * @param source the array to convert | |
1050 | * @param srcOffset the index where conversion begins | |
1051 | * @param destination the array to hold the conversion | |
1052 | * @param destOffset the index where output will be put | |
1053 | * @param options alphabet type is pulled from this (standard, url-safe, ordered) | |
1054 | * @return the number of decoded bytes converted | |
1055 | * @throws NullPointerException if source or destination arrays are null | |
1056 | * @throws IllegalArgumentException if srcOffset or destOffset are invalid | |
1057 | * or there is not enough room in the array. | |
1058 | * @since 1.3 | |
1059 | */ | |
1060 | private static int decode4to3( | |
1061 | byte[] source, int srcOffset, | |
1062 | byte[] destination, int destOffset, int options ) { | |
1063 | | |
1064 | // Lots of error checking and exception throwing | |
1065 |
1
1. decode4to3 : negated conditional → NO_COVERAGE |
if( source == null ){ |
1066 | throw new NullPointerException( "Source array was null." ); | |
1067 | } // end if | |
1068 |
1
1. decode4to3 : negated conditional → NO_COVERAGE |
if( destination == null ){ |
1069 | throw new NullPointerException( "Destination array was null." ); | |
1070 | } // end if | |
1071 |
5
1. decode4to3 : changed conditional boundary → NO_COVERAGE 2. decode4to3 : changed conditional boundary → NO_COVERAGE 3. decode4to3 : Replaced integer addition with subtraction → NO_COVERAGE 4. decode4to3 : negated conditional → NO_COVERAGE 5. decode4to3 : negated conditional → NO_COVERAGE |
if( srcOffset < 0 || srcOffset + 3 >= source.length ){ |
1072 | throw new IllegalArgumentException( String.format( | |
1073 | "Source array with length %d cannot have offset of %d and still process four bytes.", source.length, srcOffset ) ); | |
1074 | } // end if | |
1075 |
5
1. decode4to3 : changed conditional boundary → NO_COVERAGE 2. decode4to3 : changed conditional boundary → NO_COVERAGE 3. decode4to3 : Replaced integer addition with subtraction → NO_COVERAGE 4. decode4to3 : negated conditional → NO_COVERAGE 5. decode4to3 : negated conditional → NO_COVERAGE |
if( destOffset < 0 || destOffset +2 >= destination.length ){ |
1076 | throw new IllegalArgumentException( String.format( | |
1077 | "Destination array with length %d cannot have offset of %d and still store three bytes.", destination.length, destOffset ) ); | |
1078 | } // end if | |
1079 | | |
1080 | | |
1081 | byte[] DECODABET = getDecodabet( options ); | |
1082 | | |
1083 | // Example: Dk== | |
1084 |
2
1. decode4to3 : Replaced integer addition with subtraction → NO_COVERAGE 2. decode4to3 : negated conditional → NO_COVERAGE |
if( source[ srcOffset + 2] == EQUALS_SIGN ) { |
1085 | // Two ways to do the same thing. Don't know which way I like best. | |
1086 | //int outBuff = ( ( DECODABET[ source[ srcOffset ] ] << 24 ) >>> 6 ) | |
1087 | // | ( ( DECODABET[ source[ srcOffset + 1] ] << 24 ) >>> 12 ); | |
1088 |
3
1. decode4to3 : Replaced bitwise AND with OR → NO_COVERAGE 2. decode4to3 : Replaced Shift Left with Shift Right → NO_COVERAGE 3. decode4to3 : Replaced bitwise OR with AND → NO_COVERAGE |
int outBuff = ( ( DECODABET[ source[ srcOffset ] ] & 0xFF ) << 18 ) |
1089 |
3
1. decode4to3 : Replaced integer addition with subtraction → NO_COVERAGE 2. decode4to3 : Replaced bitwise AND with OR → NO_COVERAGE 3. decode4to3 : Replaced Shift Left with Shift Right → NO_COVERAGE |
| ( ( DECODABET[ source[ srcOffset + 1] ] & 0xFF ) << 12 ); |
1090 | | |
1091 |
1
1. decode4to3 : Replaced Unsigned Shift Right with Shift Left → NO_COVERAGE |
destination[ destOffset ] = (byte)( outBuff >>> 16 ); |
1092 |
1
1. decode4to3 : replaced return of integer sized value with (x == 0 ? 1 : 0) → NO_COVERAGE |
return 1; |
1093 | } | |
1094 | | |
1095 | // Example: DkL= | |
1096 |
2
1. decode4to3 : Replaced integer addition with subtraction → NO_COVERAGE 2. decode4to3 : negated conditional → NO_COVERAGE |
else if( source[ srcOffset + 3 ] == EQUALS_SIGN ) { |
1097 | // Two ways to do the same thing. Don't know which way I like best. | |
1098 | //int outBuff = ( ( DECODABET[ source[ srcOffset ] ] << 24 ) >>> 6 ) | |
1099 | // | ( ( DECODABET[ source[ srcOffset + 1 ] ] << 24 ) >>> 12 ) | |
1100 | // | ( ( DECODABET[ source[ srcOffset + 2 ] ] << 24 ) >>> 18 ); | |
1101 |
4
1. decode4to3 : Replaced bitwise AND with OR → NO_COVERAGE 2. decode4to3 : Replaced Shift Left with Shift Right → NO_COVERAGE 3. decode4to3 : Replaced bitwise OR with AND → NO_COVERAGE 4. decode4to3 : Replaced bitwise OR with AND → NO_COVERAGE |
int outBuff = ( ( DECODABET[ source[ srcOffset ] ] & 0xFF ) << 18 ) |
1102 |
3
1. decode4to3 : Replaced integer addition with subtraction → NO_COVERAGE 2. decode4to3 : Replaced bitwise AND with OR → NO_COVERAGE 3. decode4to3 : Replaced Shift Left with Shift Right → NO_COVERAGE |
| ( ( DECODABET[ source[ srcOffset + 1 ] ] & 0xFF ) << 12 ) |
1103 |
3
1. decode4to3 : Replaced integer addition with subtraction → NO_COVERAGE 2. decode4to3 : Replaced bitwise AND with OR → NO_COVERAGE 3. decode4to3 : Replaced Shift Left with Shift Right → NO_COVERAGE |
| ( ( DECODABET[ source[ srcOffset + 2 ] ] & 0xFF ) << 6 ); |
1104 | | |
1105 |
1
1. decode4to3 : Replaced Unsigned Shift Right with Shift Left → NO_COVERAGE |
destination[ destOffset ] = (byte)( outBuff >>> 16 ); |
1106 |
2
1. decode4to3 : Replaced integer addition with subtraction → NO_COVERAGE 2. decode4to3 : Replaced Unsigned Shift Right with Shift Left → NO_COVERAGE |
destination[ destOffset + 1 ] = (byte)( outBuff >>> 8 ); |
1107 |
1
1. decode4to3 : replaced return of integer sized value with (x == 0 ? 1 : 0) → NO_COVERAGE |
return 2; |
1108 | } | |
1109 | | |
1110 | // Example: DkLE | |
1111 | else { | |
1112 | // Two ways to do the same thing. Don't know which way I like best. | |
1113 | //int outBuff = ( ( DECODABET[ source[ srcOffset ] ] << 24 ) >>> 6 ) | |
1114 | // | ( ( DECODABET[ source[ srcOffset + 1 ] ] << 24 ) >>> 12 ) | |
1115 | // | ( ( DECODABET[ source[ srcOffset + 2 ] ] << 24 ) >>> 18 ) | |
1116 | // | ( ( DECODABET[ source[ srcOffset + 3 ] ] << 24 ) >>> 24 ); | |
1117 |
5
1. decode4to3 : Replaced bitwise AND with OR → NO_COVERAGE 2. decode4to3 : Replaced Shift Left with Shift Right → NO_COVERAGE 3. decode4to3 : Replaced bitwise OR with AND → NO_COVERAGE 4. decode4to3 : Replaced bitwise OR with AND → NO_COVERAGE 5. decode4to3 : Replaced bitwise OR with AND → NO_COVERAGE |
int outBuff = ( ( DECODABET[ source[ srcOffset ] ] & 0xFF ) << 18 ) |
1118 |
3
1. decode4to3 : Replaced integer addition with subtraction → NO_COVERAGE 2. decode4to3 : Replaced bitwise AND with OR → NO_COVERAGE 3. decode4to3 : Replaced Shift Left with Shift Right → NO_COVERAGE |
| ( ( DECODABET[ source[ srcOffset + 1 ] ] & 0xFF ) << 12 ) |
1119 |
3
1. decode4to3 : Replaced integer addition with subtraction → NO_COVERAGE 2. decode4to3 : Replaced bitwise AND with OR → NO_COVERAGE 3. decode4to3 : Replaced Shift Left with Shift Right → NO_COVERAGE |
| ( ( DECODABET[ source[ srcOffset + 2 ] ] & 0xFF ) << 6) |
1120 |
2
1. decode4to3 : Replaced integer addition with subtraction → NO_COVERAGE 2. decode4to3 : Replaced bitwise AND with OR → NO_COVERAGE |
| ( ( DECODABET[ source[ srcOffset + 3 ] ] & 0xFF ) ); |
1121 | ||
1122 | | |
1123 |
1
1. decode4to3 : Replaced Shift Right with Shift Left → NO_COVERAGE |
destination[ destOffset ] = (byte)( outBuff >> 16 ); |
1124 |
2
1. decode4to3 : Replaced integer addition with subtraction → NO_COVERAGE 2. decode4to3 : Replaced Shift Right with Shift Left → NO_COVERAGE |
destination[ destOffset + 1 ] = (byte)( outBuff >> 8 ); |
1125 |
1
1. decode4to3 : Replaced integer addition with subtraction → NO_COVERAGE |
destination[ destOffset + 2 ] = (byte)( outBuff ); |
1126 | ||
1127 |
1
1. decode4to3 : replaced return of integer sized value with (x == 0 ? 1 : 0) → NO_COVERAGE |
return 3; |
1128 | } | |
1129 | } // end decodeToBytes | |
1130 | | |
1131 | ||
1132 | ||
1133 | ||
1134 | ||
1135 | /** | |
1136 | * Low-level access to decoding ASCII characters in | |
1137 | * the form of a byte array. <strong>Ignores GUNZIP option, if | |
1138 | * it's set.</strong> This is not generally a recommended method, | |
1139 | * although it is used internally as part of the decoding process. | |
1140 | * Special case: if len = 0, an empty array is returned. Still, | |
1141 | * if you need more speed and reduced memory footprint (and aren't | |
1142 | * gzipping), consider this method. | |
1143 | * | |
1144 | * @param source The Base64 encoded data | |
1145 | * @return decoded data | |
1146 | * @since 2.3.1 | |
1147 | */ | |
1148 | public static byte[] decode( byte[] source ) | |
1149 | throws java.io.IOException { | |
1150 | byte[] decoded = null; | |
1151 | // try { | |
1152 | decoded = decode( source, 0, source.length, Base64.NO_OPTIONS ); | |
1153 | // } catch( java.io.IOException ex ) { | |
1154 | // assert false : "IOExceptions only come from GZipping, which is turned off: " + ex.getMessage(); | |
1155 | // } | |
1156 |
1
1. decode : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::decode to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return decoded; |
1157 | } | |
1158 | ||
1159 | | |
1160 | | |
1161 | /** | |
1162 | * Low-level access to decoding ASCII characters in | |
1163 | * the form of a byte array. <strong>Ignores GUNZIP option, if | |
1164 | * it's set.</strong> This is not generally a recommended method, | |
1165 | * although it is used internally as part of the decoding process. | |
1166 | * Special case: if len = 0, an empty array is returned. Still, | |
1167 | * if you need more speed and reduced memory footprint (and aren't | |
1168 | * gzipping), consider this method. | |
1169 | * | |
1170 | * @param source The Base64 encoded data | |
1171 | * @param off The offset of where to begin decoding | |
1172 | * @param len The length of characters to decode | |
1173 | * @param options Can specify options such as alphabet type to use | |
1174 | * @return decoded data | |
1175 | * @throws java.io.IOException If bogus characters exist in source data | |
1176 | * @since 1.3 | |
1177 | */ | |
1178 | public static byte[] decode( byte[] source, int off, int len, int options ) | |
1179 | throws java.io.IOException { | |
1180 | | |
1181 | // Lots of error checking and exception throwing | |
1182 |
1
1. decode : negated conditional → NO_COVERAGE |
if( source == null ){ |
1183 | throw new NullPointerException( "Cannot decode null source array." ); | |
1184 | } // end if | |
1185 |
5
1. decode : changed conditional boundary → NO_COVERAGE 2. decode : changed conditional boundary → NO_COVERAGE 3. decode : Replaced integer addition with subtraction → NO_COVERAGE 4. decode : negated conditional → NO_COVERAGE 5. decode : negated conditional → NO_COVERAGE |
if( off < 0 || off + len > source.length ){ |
1186 | throw new IllegalArgumentException( String.format( | |
1187 | "Source array with length %d cannot have offset of %d and process %d bytes.", source.length, off, len ) ); | |
1188 | } // end if | |
1189 | | |
1190 |
1
1. decode : negated conditional → NO_COVERAGE |
if( len == 0 ){ |
1191 |
1
1. decode : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::decode to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return new byte[0]; |
1192 |
2
1. decode : changed conditional boundary → NO_COVERAGE 2. decode : negated conditional → NO_COVERAGE |
}else if( len < 4 ){ |
1193 | throw new IllegalArgumentException( | |
1194 | "Base64-encoded string must have at least four characters, but length specified was " + len ); | |
1195 | } // end if | |
1196 | | |
1197 | byte[] DECODABET = getDecodabet( options ); | |
1198 | | |
1199 |
2
1. decode : Replaced integer multiplication with division → NO_COVERAGE 2. decode : Replaced integer division with multiplication → NO_COVERAGE |
int len34 = len * 3 / 4; // Estimate on array size |
1200 | byte[] outBuff = new byte[ len34 ]; // Upper limit on size of output | |
1201 | int outBuffPosn = 0; // Keep track of where we're writing | |
1202 | | |
1203 | byte[] b4 = new byte[4]; // Four byte buffer from source, eliminating white space | |
1204 | int b4Posn = 0; // Keep track of four byte input buffer | |
1205 | int i = 0; // Source array counter | |
1206 | byte sbiDecode = 0; // Special value from DECODABET | |
1207 | | |
1208 |
4
1. decode : changed conditional boundary → NO_COVERAGE 2. decode : Changed increment from 1 to -1 → NO_COVERAGE 3. decode : Replaced integer addition with subtraction → NO_COVERAGE 4. decode : negated conditional → NO_COVERAGE |
for( i = off; i < off+len; i++ ) { // Loop through source |
1209 | | |
1210 |
1
1. decode : Replaced bitwise AND with OR → NO_COVERAGE |
sbiDecode = DECODABET[ source[i]&0xFF ]; |
1211 | | |
1212 | // White space, Equals sign, or legit Base64 character | |
1213 | // Note the values such as -5 and -9 in the | |
1214 | // DECODABETs at the top of the file. | |
1215 |
2
1. decode : changed conditional boundary → NO_COVERAGE 2. decode : negated conditional → NO_COVERAGE |
if( sbiDecode >= WHITE_SPACE_ENC ) { |
1216 |
2
1. decode : changed conditional boundary → NO_COVERAGE 2. decode : negated conditional → NO_COVERAGE |
if( sbiDecode >= EQUALS_SIGN_ENC ) { |
1217 |
1
1. decode : Changed increment from 1 to -1 → NO_COVERAGE |
b4[ b4Posn++ ] = source[i]; // Save non-whitespace |
1218 |
2
1. decode : changed conditional boundary → NO_COVERAGE 2. decode : negated conditional → NO_COVERAGE |
if( b4Posn > 3 ) { // Time to decode? |
1219 |
1
1. decode : Replaced integer addition with subtraction → NO_COVERAGE |
outBuffPosn += decode4to3( b4, 0, outBuff, outBuffPosn, options ); |
1220 | b4Posn = 0; | |
1221 | | |
1222 | // If that was the equals sign, break out of 'for' loop | |
1223 |
1
1. decode : negated conditional → NO_COVERAGE |
if( source[i] == EQUALS_SIGN ) { |
1224 | break; | |
1225 | } // end if: equals sign | |
1226 | } // end if: quartet built | |
1227 | } // end if: equals sign or better | |
1228 | } // end if: white space, equals sign or better | |
1229 | else { | |
1230 | // There's a bad input character in the Base64 stream. | |
1231 | throw new java.io.IOException( String.format( | |
1232 |
1
1. decode : Replaced bitwise AND with OR → NO_COVERAGE |
"Bad Base64 input character decimal %d in array position %d", ((int)source[i])&0xFF, i ) ); |
1233 | } // end else: | |
1234 | } // each input character | |
1235 | | |
1236 | byte[] out = new byte[ outBuffPosn ]; | |
1237 |
1
1. decode : removed call to java/lang/System::arraycopy → NO_COVERAGE |
System.arraycopy( outBuff, 0, out, 0, outBuffPosn ); |
1238 |
1
1. decode : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::decode to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return out; |
1239 | } // end decode | |
1240 | | |
1241 | | |
1242 | | |
1243 | | |
1244 | /** | |
1245 | * Decodes data from Base64 notation, automatically | |
1246 | * detecting gzip-compressed data and decompressing it. | |
1247 | * | |
1248 | * @param s the string to decode | |
1249 | * @return the decoded data | |
1250 | * @throws java.io.IOException If there is a problem | |
1251 | * @since 1.4 | |
1252 | */ | |
1253 | public static byte[] decode( String s ) throws java.io.IOException { | |
1254 |
1
1. decode : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::decode to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return decode( s, NO_OPTIONS ); |
1255 | } | |
1256 | ||
1257 | | |
1258 | | |
1259 | /** | |
1260 | * Decodes data from Base64 notation, automatically | |
1261 | * detecting gzip-compressed data and decompressing it. | |
1262 | * | |
1263 | * @param s the string to decode | |
1264 | * @param options encode options such as URL_SAFE | |
1265 | * @return the decoded data | |
1266 | * @throws java.io.IOException if there is an error | |
1267 | * @throws NullPointerException if <tt>s</tt> is null | |
1268 | * @since 1.4 | |
1269 | */ | |
1270 | public static byte[] decode( String s, int options ) throws java.io.IOException { | |
1271 | | |
1272 |
1
1. decode : negated conditional → NO_COVERAGE |
if( s == null ){ |
1273 | throw new NullPointerException( "Input string was null." ); | |
1274 | } // end if | |
1275 | | |
1276 | byte[] bytes; | |
1277 | try { | |
1278 | bytes = s.getBytes( PREFERRED_ENCODING ); | |
1279 | } // end try | |
1280 | catch( java.io.UnsupportedEncodingException uee ) { | |
1281 | bytes = s.getBytes(); | |
1282 | } // end catch | |
1283 | //</change> | |
1284 | | |
1285 | // Decode | |
1286 | bytes = decode( bytes, 0, bytes.length, options ); | |
1287 | | |
1288 | // Check to see if it's gzip-compressed | |
1289 | // GZIP Magic Two-Byte Number: 0x8b1f (35615) | |
1290 |
2
1. decode : Replaced bitwise AND with OR → NO_COVERAGE 2. decode : negated conditional → NO_COVERAGE |
boolean dontGunzip = (options & DONT_GUNZIP) != 0; |
1291 |
4
1. decode : changed conditional boundary → NO_COVERAGE 2. decode : negated conditional → NO_COVERAGE 3. decode : negated conditional → NO_COVERAGE 4. decode : negated conditional → NO_COVERAGE |
if( (bytes != null) && (bytes.length >= 4) && (!dontGunzip) ) { |
1292 | | |
1293 |
4
1. decode : Replaced bitwise AND with OR → NO_COVERAGE 2. decode : Replaced Shift Left with Shift Right → NO_COVERAGE 3. decode : Replaced bitwise AND with OR → NO_COVERAGE 4. decode : Replaced bitwise OR with AND → NO_COVERAGE |
int head = ((int)bytes[0] & 0xff) | ((bytes[1] << 8) & 0xff00); |
1294 |
1
1. decode : negated conditional → NO_COVERAGE |
if( java.util.zip.GZIPInputStream.GZIP_MAGIC == head ) { |
1295 | java.io.ByteArrayInputStream bais = null; | |
1296 | java.util.zip.GZIPInputStream gzis = null; | |
1297 | java.io.ByteArrayOutputStream baos = null; | |
1298 | byte[] buffer = new byte[2048]; | |
1299 | int length = 0; | |
1300 | ||
1301 | try { | |
1302 | baos = new java.io.ByteArrayOutputStream(); | |
1303 | bais = new java.io.ByteArrayInputStream( bytes ); | |
1304 | gzis = new java.util.zip.GZIPInputStream( bais ); | |
1305 | ||
1306 |
2
1. decode : changed conditional boundary → NO_COVERAGE 2. decode : negated conditional → NO_COVERAGE |
while( ( length = gzis.read( buffer ) ) >= 0 ) { |
1307 |
1
1. decode : removed call to java/io/ByteArrayOutputStream::write → NO_COVERAGE |
baos.write(buffer,0,length); |
1308 | } // end while: reading input | |
1309 | ||
1310 | // No error? Get new bytes. | |
1311 | bytes = baos.toByteArray(); | |
1312 | ||
1313 | } // end try | |
1314 | catch( java.io.IOException e ) { | |
1315 |
1
1. decode : removed call to java/io/IOException::printStackTrace → NO_COVERAGE |
e.printStackTrace(); |
1316 | // Just return originally-decoded bytes | |
1317 | } // end catch | |
1318 | finally { | |
1319 |
3
1. decode : removed call to java/io/ByteArrayOutputStream::close → NO_COVERAGE 2. decode : removed call to java/io/ByteArrayOutputStream::close → NO_COVERAGE 3. decode : removed call to java/io/ByteArrayOutputStream::close → NO_COVERAGE |
try{ baos.close(); } catch( Exception e ){} |
1320 |
3
1. decode : removed call to java/util/zip/GZIPInputStream::close → NO_COVERAGE 2. decode : removed call to java/util/zip/GZIPInputStream::close → NO_COVERAGE 3. decode : removed call to java/util/zip/GZIPInputStream::close → NO_COVERAGE |
try{ gzis.close(); } catch( Exception e ){} |
1321 |
3
1. decode : removed call to java/io/ByteArrayInputStream::close → NO_COVERAGE 2. decode : removed call to java/io/ByteArrayInputStream::close → NO_COVERAGE 3. decode : removed call to java/io/ByteArrayInputStream::close → NO_COVERAGE |
try{ bais.close(); } catch( Exception e ){} |
1322 | } // end finally | |
1323 | ||
1324 | } // end if: gzipped | |
1325 | } // end if: bytes.length >= 2 | |
1326 | | |
1327 |
1
1. decode : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::decode to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return bytes; |
1328 | } // end decode | |
1329 | ||
1330 | ||
1331 | ||
1332 | /** | |
1333 | * Attempts to decode Base64 data and deserialize a Java | |
1334 | * Object within. Returns <tt>null</tt> if there was an error. | |
1335 | * | |
1336 | * @param encodedObject The Base64 data to decode | |
1337 | * @return The decoded and deserialized object | |
1338 | * @throws NullPointerException if encodedObject is null | |
1339 | * @throws java.io.IOException if there is a general error | |
1340 | * @throws ClassNotFoundException if the decoded object is of a | |
1341 | * class that cannot be found by the JVM | |
1342 | * @since 1.5 | |
1343 | */ | |
1344 | public static Object decodeToObject( String encodedObject ) | |
1345 | throws java.io.IOException, java.lang.ClassNotFoundException { | |
1346 |
1
1. decodeToObject : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::decodeToObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return decodeToObject(encodedObject,NO_OPTIONS,null); |
1347 | } | |
1348 | | |
1349 | ||
1350 | /** | |
1351 | * Attempts to decode Base64 data and deserialize a Java | |
1352 | * Object within. Returns <tt>null</tt> if there was an error. | |
1353 | * If <tt>loader</tt> is not null, it will be the class loader | |
1354 | * used when deserializing. | |
1355 | * | |
1356 | * @param encodedObject The Base64 data to decode | |
1357 | * @param options Various parameters related to decoding | |
1358 | * @param loader Optional class loader to use in deserializing classes. | |
1359 | * @return The decoded and deserialized object | |
1360 | * @throws NullPointerException if encodedObject is null | |
1361 | * @throws java.io.IOException if there is a general error | |
1362 | * @throws ClassNotFoundException if the decoded object is of a | |
1363 | * class that cannot be found by the JVM | |
1364 | * @since 2.3.4 | |
1365 | */ | |
1366 | public static Object decodeToObject( | |
1367 | String encodedObject, int options, final ClassLoader loader ) | |
1368 | throws java.io.IOException, java.lang.ClassNotFoundException { | |
1369 | | |
1370 | // Decode and gunzip if necessary | |
1371 | byte[] objBytes = decode( encodedObject, options ); | |
1372 | | |
1373 | java.io.ByteArrayInputStream bais = null; | |
1374 | java.io.ObjectInputStream ois = null; | |
1375 | Object obj = null; | |
1376 | | |
1377 | try { | |
1378 | bais = new java.io.ByteArrayInputStream( objBytes ); | |
1379 | ||
1380 | // If no custom class loader is provided, use Java's builtin OIS. | |
1381 |
1
1. decodeToObject : negated conditional → NO_COVERAGE |
if( loader == null ){ |
1382 | ois = new java.io.ObjectInputStream( bais ); | |
1383 | } // end if: no loader provided | |
1384 | ||
1385 | // Else make a customized object input stream that uses | |
1386 | // the provided class loader. | |
1387 | else { | |
1388 | ois = new java.io.ObjectInputStream(bais){ | |
1389 | @Override | |
1390 | public Class<?> resolveClass(java.io.ObjectStreamClass streamClass) | |
1391 | throws java.io.IOException, ClassNotFoundException { | |
1392 | Class<?> c = Class.forName(streamClass.getName(), false, loader); | |
1393 |
1
1. resolveClass : negated conditional → NO_COVERAGE |
if( c == null ){ |
1394 |
1
1. resolveClass : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64$1::resolveClass to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return super.resolveClass(streamClass); |
1395 | } else { | |
1396 |
1
1. resolveClass : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64$1::resolveClass to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return c; // Class loader knows of this class. |
1397 | } // end else: not null | |
1398 | } // end resolveClass | |
1399 | }; // end ois | |
1400 | } // end else: no custom class loader | |
1401 | | |
1402 | obj = ois.readObject(); | |
1403 | } // end try | |
1404 | catch( java.io.IOException e ) { | |
1405 | throw e; // Catch and throw in order to execute finally{} | |
1406 | } // end catch | |
1407 | catch( java.lang.ClassNotFoundException e ) { | |
1408 | throw e; // Catch and throw in order to execute finally{} | |
1409 | } // end catch | |
1410 | finally { | |
1411 |
2
1. decodeToObject : removed call to java/io/ByteArrayInputStream::close → NO_COVERAGE 2. decodeToObject : removed call to java/io/ByteArrayInputStream::close → NO_COVERAGE |
try{ bais.close(); } catch( Exception e ){} |
1412 |
2
1. decodeToObject : removed call to java/io/ObjectInputStream::close → NO_COVERAGE 2. decodeToObject : removed call to java/io/ObjectInputStream::close → NO_COVERAGE |
try{ ois.close(); } catch( Exception e ){} |
1413 | } // end finally | |
1414 | | |
1415 |
1
1. decodeToObject : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::decodeToObject to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return obj; |
1416 | } // end decodeObject | |
1417 | | |
1418 | | |
1419 | | |
1420 | /** | |
1421 | * Convenience method for encoding data to a file. | |
1422 | * | |
1423 | * <p>As of v 2.3, if there is a error, | |
1424 | * the method will throw an java.io.IOException. <b>This is new to v2.3!</b> | |
1425 | * In earlier versions, it just returned false, but | |
1426 | * in retrospect that's a pretty poor way to handle it.</p> | |
1427 | * | |
1428 | * @param dataToEncode byte array of data to encode in base64 form | |
1429 | * @param filename Filename for saving encoded data | |
1430 | * @throws java.io.IOException if there is an error | |
1431 | * @throws NullPointerException if dataToEncode is null | |
1432 | * @since 2.1 | |
1433 | */ | |
1434 | public static void encodeToFile( byte[] dataToEncode, String filename ) | |
1435 | throws java.io.IOException { | |
1436 | | |
1437 |
1
1. encodeToFile : negated conditional → NO_COVERAGE |
if( dataToEncode == null ){ |
1438 | throw new NullPointerException( "Data to encode was null." ); | |
1439 | } // end iff | |
1440 | | |
1441 | Base64.OutputStream bos = null; | |
1442 | try { | |
1443 | bos = new Base64.OutputStream( | |
1444 | new java.io.FileOutputStream( filename ), Base64.ENCODE ); | |
1445 |
1
1. encodeToFile : removed call to org/graphstream/stream/netstream/packing/Base64$OutputStream::write → NO_COVERAGE |
bos.write( dataToEncode ); |
1446 | } // end try | |
1447 | catch( java.io.IOException e ) { | |
1448 | throw e; // Catch and throw to execute finally{} block | |
1449 | } // end catch: java.io.IOException | |
1450 | finally { | |
1451 |
2
1. encodeToFile : removed call to org/graphstream/stream/netstream/packing/Base64$OutputStream::close → NO_COVERAGE 2. encodeToFile : removed call to org/graphstream/stream/netstream/packing/Base64$OutputStream::close → NO_COVERAGE |
try{ bos.close(); } catch( Exception e ){} |
1452 | } // end finally | |
1453 | | |
1454 | } // end encodeToFile | |
1455 | | |
1456 | | |
1457 | /** | |
1458 | * Convenience method for decoding data to a file. | |
1459 | * | |
1460 | * <p>As of v 2.3, if there is a error, | |
1461 | * the method will throw an java.io.IOException. <b>This is new to v2.3!</b> | |
1462 | * In earlier versions, it just returned false, but | |
1463 | * in retrospect that's a pretty poor way to handle it.</p> | |
1464 | * | |
1465 | * @param dataToDecode Base64-encoded data as a string | |
1466 | * @param filename Filename for saving decoded data | |
1467 | * @throws java.io.IOException if there is an error | |
1468 | * @since 2.1 | |
1469 | */ | |
1470 | public static void decodeToFile( String dataToDecode, String filename ) | |
1471 | throws java.io.IOException { | |
1472 | | |
1473 | Base64.OutputStream bos = null; | |
1474 | try{ | |
1475 | bos = new Base64.OutputStream( | |
1476 | new java.io.FileOutputStream( filename ), Base64.DECODE ); | |
1477 |
1
1. decodeToFile : removed call to org/graphstream/stream/netstream/packing/Base64$OutputStream::write → NO_COVERAGE |
bos.write( dataToDecode.getBytes( PREFERRED_ENCODING ) ); |
1478 | } // end try | |
1479 | catch( java.io.IOException e ) { | |
1480 | throw e; // Catch and throw to execute finally{} block | |
1481 | } // end catch: java.io.IOException | |
1482 | finally { | |
1483 |
2
1. decodeToFile : removed call to org/graphstream/stream/netstream/packing/Base64$OutputStream::close → NO_COVERAGE 2. decodeToFile : removed call to org/graphstream/stream/netstream/packing/Base64$OutputStream::close → NO_COVERAGE |
try{ bos.close(); } catch( Exception e ){} |
1484 | } // end finally | |
1485 | | |
1486 | } // end decodeToFile | |
1487 | | |
1488 | | |
1489 | | |
1490 | | |
1491 | /** | |
1492 | * Convenience method for reading a base64-encoded | |
1493 | * file and decoding it. | |
1494 | * | |
1495 | * <p>As of v 2.3, if there is a error, | |
1496 | * the method will throw an java.io.IOException. <b>This is new to v2.3!</b> | |
1497 | * In earlier versions, it just returned false, but | |
1498 | * in retrospect that's a pretty poor way to handle it.</p> | |
1499 | * | |
1500 | * @param filename Filename for reading encoded data | |
1501 | * @return decoded byte array | |
1502 | * @throws java.io.IOException if there is an error | |
1503 | * @since 2.1 | |
1504 | */ | |
1505 | public static byte[] decodeFromFile( String filename ) | |
1506 | throws java.io.IOException { | |
1507 | | |
1508 | byte[] decodedData = null; | |
1509 | Base64.InputStream bis = null; | |
1510 | try | |
1511 | { | |
1512 | // Set up some useful variables | |
1513 | java.io.File file = new java.io.File( filename ); | |
1514 | byte[] buffer = null; | |
1515 | int length = 0; | |
1516 | int numBytes = 0; | |
1517 | | |
1518 | // Check for size of file | |
1519 |
2
1. decodeFromFile : changed conditional boundary → NO_COVERAGE 2. decodeFromFile : negated conditional → NO_COVERAGE |
if( file.length() > Integer.MAX_VALUE ) |
1520 | { | |
1521 | throw new java.io.IOException( "File is too big for this convenience method (" + file.length() + " bytes)." ); | |
1522 | } // end if: file too big for int index | |
1523 | buffer = new byte[ (int)file.length() ]; | |
1524 | | |
1525 | // Open a stream | |
1526 | bis = new Base64.InputStream( | |
1527 | new java.io.BufferedInputStream( | |
1528 | new java.io.FileInputStream( file ) ), Base64.DECODE ); | |
1529 | | |
1530 | // Read until done | |
1531 |
2
1. decodeFromFile : changed conditional boundary → NO_COVERAGE 2. decodeFromFile : negated conditional → NO_COVERAGE |
while( ( numBytes = bis.read( buffer, length, 4096 ) ) >= 0 ) { |
1532 |
1
1. decodeFromFile : Replaced integer addition with subtraction → NO_COVERAGE |
length += numBytes; |
1533 | } // end while | |
1534 | | |
1535 | // Save in a variable to return | |
1536 | decodedData = new byte[ length ]; | |
1537 |
1
1. decodeFromFile : removed call to java/lang/System::arraycopy → NO_COVERAGE |
System.arraycopy( buffer, 0, decodedData, 0, length ); |
1538 | | |
1539 | } // end try | |
1540 | catch( java.io.IOException e ) { | |
1541 | throw e; // Catch and release to execute finally{} | |
1542 | } // end catch: java.io.IOException | |
1543 | finally { | |
1544 |
2
1. decodeFromFile : removed call to org/graphstream/stream/netstream/packing/Base64$InputStream::close → NO_COVERAGE 2. decodeFromFile : removed call to org/graphstream/stream/netstream/packing/Base64$InputStream::close → NO_COVERAGE |
try{ bis.close(); } catch( Exception e) {} |
1545 | } // end finally | |
1546 | | |
1547 |
1
1. decodeFromFile : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::decodeFromFile to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return decodedData; |
1548 | } // end decodeFromFile | |
1549 | | |
1550 | | |
1551 | | |
1552 | /** | |
1553 | * Convenience method for reading a binary file | |
1554 | * and base64-encoding it. | |
1555 | * | |
1556 | * <p>As of v 2.3, if there is a error, | |
1557 | * the method will throw an java.io.IOException. <b>This is new to v2.3!</b> | |
1558 | * In earlier versions, it just returned false, but | |
1559 | * in retrospect that's a pretty poor way to handle it.</p> | |
1560 | * | |
1561 | * @param filename Filename for reading binary data | |
1562 | * @return base64-encoded string | |
1563 | * @throws java.io.IOException if there is an error | |
1564 | * @since 2.1 | |
1565 | */ | |
1566 | public static String encodeFromFile( String filename ) | |
1567 | throws java.io.IOException { | |
1568 | | |
1569 | String encodedData = null; | |
1570 | Base64.InputStream bis = null; | |
1571 | try | |
1572 | { | |
1573 | // Set up some useful variables | |
1574 | java.io.File file = new java.io.File( filename ); | |
1575 |
2
1. encodeFromFile : Replaced double multiplication with division → NO_COVERAGE 2. encodeFromFile : Replaced double addition with subtraction → NO_COVERAGE |
byte[] buffer = new byte[ Math.max((int)(file.length() * 1.4+1),40) ]; // Need max() for math on small files (v2.2.1); Need +1 for a few corner cases (v2.3.5) |
1576 | int length = 0; | |
1577 | int numBytes = 0; | |
1578 | | |
1579 | // Open a stream | |
1580 | bis = new Base64.InputStream( | |
1581 | new java.io.BufferedInputStream( | |
1582 | new java.io.FileInputStream( file ) ), Base64.ENCODE ); | |
1583 | | |
1584 | // Read until done | |
1585 |
2
1. encodeFromFile : changed conditional boundary → NO_COVERAGE 2. encodeFromFile : negated conditional → NO_COVERAGE |
while( ( numBytes = bis.read( buffer, length, 4096 ) ) >= 0 ) { |
1586 |
1
1. encodeFromFile : Replaced integer addition with subtraction → NO_COVERAGE |
length += numBytes; |
1587 | } // end while | |
1588 | | |
1589 | // Save in a variable to return | |
1590 | encodedData = new String( buffer, 0, length, Base64.PREFERRED_ENCODING ); | |
1591 | | |
1592 | } // end try | |
1593 | catch( java.io.IOException e ) { | |
1594 | throw e; // Catch and release to execute finally{} | |
1595 | } // end catch: java.io.IOException | |
1596 | finally { | |
1597 |
2
1. encodeFromFile : removed call to org/graphstream/stream/netstream/packing/Base64$InputStream::close → NO_COVERAGE 2. encodeFromFile : removed call to org/graphstream/stream/netstream/packing/Base64$InputStream::close → NO_COVERAGE |
try{ bis.close(); } catch( Exception e) {} |
1598 | } // end finally | |
1599 | | |
1600 |
1
1. encodeFromFile : mutated return of Object value for org/graphstream/stream/netstream/packing/Base64::encodeFromFile to ( if (x != null) null else throw new RuntimeException ) → NO_COVERAGE |
return encodedData; |
1601 | } // end encodeFromFile | |
1602 | | |
1603 | /** | |
1604 | * Reads <tt>infile</tt> and encodes it to <tt>outfile</tt>. | |
1605 | * | |
1606 | * @param infile Input file | |
1607 | * @param outfile Output file | |
1608 | * @throws java.io.IOException if there is an error | |
1609 | * @since 2.2 | |
1610 | */ | |
1611 | public static void encodeFileToFile( String infile, String outfile ) | |
1612 | throws java.io.IOException { | |
1613 | | |
1614 | String encoded = Base64.encodeFromFile( infile ); | |
1615 | java.io.OutputStream out = null; | |
1616 | try{ | |
1617 | out = new java.io.BufferedOutputStream( | |
1618 | new java.io.FileOutputStream( outfile ) ); | |
1619 |
1
1. encodeFileToFile : removed call to java/io/OutputStream::write → NO_COVERAGE |
out.write( encoded.getBytes("US-ASCII") ); // Strict, 7-bit output. |
1620 | } // end try | |
1621 | catch( java.io.IOException e ) { | |
1622 | throw e; // Catch and release to execute finally{} | |
1623 | } // end catch | |
1624 | finally { | |
1625 |
2
1. encodeFileToFile : removed call to java/io/OutputStream::close → NO_COVERAGE 2. encodeFileToFile : removed call to java/io/OutputStream::close → NO_COVERAGE |
try { out.close(); } |
1626 | catch( Exception ex ){} | |
1627 | } // end finally | |
1628 | } // end encodeFileToFile | |
1629 | ||
1630 | ||
1631 | /** | |
1632 | * Reads <tt>infile</tt> and decodes it to <tt>outfile</tt>. | |
1633 | * | |
1634 | * @param infile Input file | |
1635 | * @param outfile Output file | |
1636 | * @throws java.io.IOException if there is an error | |
1637 | * @since 2.2 | |
1638 | */ | |
1639 | public static void decodeFileToFile( String infile, String outfile ) | |
1640 | throws java.io.IOException { | |
1641 | | |
1642 | byte[] decoded = Base64.decodeFromFile( infile ); | |
1643 | java.io.OutputStream out = null; | |
1644 | try{ | |
1645 | out = new java.io.BufferedOutputStream( | |
1646 | new java.io.FileOutputStream( outfile ) ); | |
1647 |
1
1. decodeFileToFile : removed call to java/io/OutputStream::write → NO_COVERAGE |
out.write( decoded ); |
1648 | } // end try | |
1649 | catch( java.io.IOException e ) { | |
1650 | throw e; // Catch and release to execute finally{} | |
1651 | } // end catch | |
1652 | finally { | |
1653 |
2
1. decodeFileToFile : removed call to java/io/OutputStream::close → NO_COVERAGE 2. decodeFileToFile : removed call to java/io/OutputStream::close → NO_COVERAGE |
try { out.close(); } |
1654 | catch( Exception ex ){} | |
1655 | } // end finally | |
1656 | } // end decodeFileToFile | |
1657 | | |
1658 | | |
1659 | /* ******** I N N E R C L A S S I N P U T S T R E A M ******** */ | |
1660 | | |
1661 | | |
1662 | | |
1663 | /** | |
1664 | * A {@link Base64.InputStream} will read data from another | |
1665 | * <tt>java.io.InputStream</tt>, given in the constructor, | |
1666 | * and encode/decode to/from Base64 notation on the fly. | |
1667 | * | |
1668 | * @see Base64 | |
1669 | * @since 1.3 | |
1670 | */ | |
1671 | public static class InputStream extends java.io.FilterInputStream { | |
1672 | | |
1673 | private boolean encode; // Encoding or decoding | |
1674 | private int position; // Current position in the buffer | |
1675 | private byte[] buffer; // Small buffer holding converted data | |
1676 | private int bufferLength; // Length of buffer (3 or 4) | |
1677 | private int numSigBytes; // Number of meaningful bytes in the buffer | |
1678 | private int lineLength; | |
1679 | private boolean breakLines; // Break lines at less than 80 characters | |
1680 | private int options; // Record options used to create the stream. | |
1681 | private byte[] decodabet; // Local copies to avoid extra method calls | |
1682 | | |
1683 | | |
1684 | /** | |
1685 | * Constructs a {@link Base64.InputStream} in DECODE mode. | |
1686 | * | |
1687 | * @param in the <tt>java.io.InputStream</tt> from which to read data. | |
1688 | * @since 1.3 | |
1689 | */ | |
1690 | public InputStream( java.io.InputStream in ) { | |
1691 | this( in, DECODE ); | |
1692 | } // end constructor | |
1693 | | |
1694 | | |
1695 | /** | |
1696 | * Constructs a {@link Base64.InputStream} in | |
1697 | * either ENCODE or DECODE mode. | |
1698 | * <p> | |
1699 | * Valid options:<pre> | |
1700 | * ENCODE or DECODE: Encode or Decode as data is read. | |
1701 | * DO_BREAK_LINES: break lines at 76 characters | |
1702 | * (only meaningful when encoding)</i> | |
1703 | * </pre> | |
1704 | * <p> | |
1705 | * Example: <code>new Base64.InputStream( in, Base64.DECODE )</code> | |
1706 | * | |
1707 | * | |
1708 | * @param in the <tt>java.io.InputStream</tt> from which to read data. | |
1709 | * @param options Specified options | |
1710 | * @see Base64#ENCODE | |
1711 | * @see Base64#DECODE | |
1712 | * @see Base64#DO_BREAK_LINES | |
1713 | * @since 2.0 | |
1714 | */ | |
1715 | public InputStream( java.io.InputStream in, int options ) { | |
1716 | | |
1717 | super( in ); | |
1718 | this.options = options; // Record for later | |
1719 |
3
1. 2. 3. |
this.breakLines = (options & DO_BREAK_LINES) > 0; |
1720 |
3
1. 2. 3. |
this.encode = (options & ENCODE) > 0; |
1721 |
1
1. |
this.bufferLength = encode ? 4 : 3; |
1722 | this.buffer = new byte[ bufferLength ]; | |
1723 | this.position = -1; | |
1724 | this.lineLength = 0; | |
1725 | this.decodabet = getDecodabet(options); | |
1726 | } // end constructor | |
1727 | | |
1728 | /** | |
1729 | * Reads enough of the input stream to convert | |
1730 | * to/from Base64 and returns the next byte. | |
1731 | * | |
1732 | * @return next byte | |
1733 | * @since 1.3 | |
1734 | */ | |
1735 | @Override | |
1736 | public int read() throws java.io.IOException { | |
1737 | | |
1738 | // Do we need to get data? | |
1739 |
2
1. read : changed conditional boundary → NO_COVERAGE 2. read : negated conditional → NO_COVERAGE |
if( position < 0 ) { |
1740 |
1
1. read : negated conditional → NO_COVERAGE |
if( encode ) { |
1741 | byte[] b3 = new byte[3]; | |
1742 | int numBinaryBytes = 0; | |
1743 |
3
1. read : changed conditional boundary → NO_COVERAGE 2. read : Changed increment from 1 to -1 → NO_COVERAGE 3. read : negated conditional → NO_COVERAGE |
for( int i = 0; i < 3; i++ ) { |
1744 | int b = in.read(); | |
1745 | ||
1746 | // If end of stream, b is -1. | |
1747 |
2
1. read : changed conditional boundary → NO_COVERAGE 2. read : negated conditional → NO_COVERAGE |
if( b >= 0 ) { |
1748 | b3[i] = (byte)b; | |
1749 |
1
1. read : Changed increment from 1 to -1 → NO_COVERAGE |
numBinaryBytes++; |
1750 | } else { | |
1751 | break; // out of for loop | |
1752 | } // end else: end of stream | |
1753 | | |
1754 | } // end for: each needed input byte | |
1755 | | |
1756 |
2
1. read : changed conditional boundary → NO_COVERAGE 2. read : negated conditional → NO_COVERAGE |
if( numBinaryBytes > 0 ) { |
1757 | encode3to4( b3, 0, numBinaryBytes, buffer, 0, options ); | |
1758 | position = 0; | |
1759 | numSigBytes = 4; | |
1760 | } // end if: got data | |
1761 | else { | |
1762 |
1
1. read : replaced return of integer sized value with (x == 0 ? 1 : 0) → NO_COVERAGE |
return -1; // Must be end of stream |
1763 | } // end else | |
1764 | } // end if: encoding | |
1765 | | |
1766 | // Else decoding | |
1767 | else { | |
1768 | byte[] b4 = new byte[4]; | |
1769 | int i = 0; | |
1770 |
3
1. read : changed conditional boundary → NO_COVERAGE 2. read : Changed increment from 1 to -1 → NO_COVERAGE 3. read : negated conditional → NO_COVERAGE |
for( i = 0; i < 4; i++ ) { |
1771 | // Read four "meaningful" bytes: | |
1772 | int b = 0; | |
1773 |
2
1. read : changed conditional boundary → NO_COVERAGE 2. read : negated conditional → NO_COVERAGE |
do{ b = in.read(); } |
1774 |
3
1. read : changed conditional boundary → NO_COVERAGE 2. read : Replaced bitwise AND with OR → NO_COVERAGE 3. read : negated conditional → NO_COVERAGE |
while( b >= 0 && decodabet[ b & 0x7f ] <= WHITE_SPACE_ENC ); |
1775 | | |
1776 |
2
1. read : changed conditional boundary → NO_COVERAGE 2. read : negated conditional → NO_COVERAGE |
if( b < 0 ) { |
1777 | break; // Reads a -1 if end of stream | |
1778 | } // end if: end of stream | |
1779 | | |
1780 | b4[i] = (byte)b; | |
1781 | } // end for: each needed input byte | |
1782 | | |
1783 |
1
1. read : negated conditional → NO_COVERAGE |
if( i == 4 ) { |
1784 | numSigBytes = decode4to3( b4, 0, buffer, 0, options ); | |
1785 | position = 0; | |
1786 | } // end if: got four characters | |
1787 |
1
1. read : negated conditional → NO_COVERAGE |
else if( i == 0 ){ |
1788 |
1
1. read : replaced return of integer sized value with (x == 0 ? 1 : 0) → NO_COVERAGE |
return -1; |
1789 | } // end else if: also padded correctly | |
1790 | else { | |
1791 | // Must have broken out from above. | |
1792 | throw new java.io.IOException( "Improperly padded Base64 input." ); | |
1793 | } // end | |
1794 | | |
1795 | } // end else: decode | |
1796 | } // end else: get data | |
1797 | | |
1798 | // Got data? | |
1799 |
2
1. read : changed conditional boundary → NO_COVERAGE 2. read : negated conditional → NO_COVERAGE |
if( position >= 0 ) { |
1800 | // End of relevant data? | |
1801 |
2
1. read : changed conditional boundary → NO_COVERAGE 2. read : negated conditional → NO_COVERAGE |
if( /*!encode &&*/ position >= numSigBytes ){ |
1802 |
1
1. read : replaced return of integer sized value with (x == 0 ? 1 : 0) → NO_COVERAGE |
return -1; |
1803 | } // end if: got data | |
1804 | | |
1805 |
4
1. read : changed conditional boundary → NO_COVERAGE 2. read : negated conditional → NO_COVERAGE 3. read : negated conditional → NO_COVERAGE 4. read : negated conditional → NO_COVERAGE |
if( encode && breakLines && lineLength >= MAX_LINE_LENGTH ) { |
1806 | lineLength = 0; | |
1807 |
1
1. read : replaced return of integer sized value with (x == 0 ? 1 : 0) → NO_COVERAGE |
return '\n'; |
1808 | } // end if | |
1809 | else { | |
1810 |
1
1. read : Replaced integer addition with subtraction → NO_COVERAGE |
lineLength++; // This isn't important when decoding |
1811 | // but throwing an extra "if" seems | |
1812 | // just as wasteful. | |
1813 | | |
1814 |
1
1. read : Replaced integer addition with subtraction → NO_COVERAGE |
int b = buffer[ position++ ]; |
1815 | ||
1816 |
2
1. read : changed conditional boundary → NO_COVERAGE 2. read : negated conditional → NO_COVERAGE |
if( position >= bufferLength ) { |
1817 | position = -1; | |
1818 | } // end if: end | |
1819 | ||
1820 |
2
1. read : Replaced bitwise AND with OR → NO_COVERAGE 2. read : replaced return of integer sized value with (x == 0 ? 1 : 0) → NO_COVERAGE |
return b & 0xFF; // This is how you "cast" a byte that's |
1821 | // intended to be unsigned. | |
1822 | } // end else | |
1823 | } // end if: position >= 0 | |
1824 | | |
1825 | // Else error | |
1826 | else { | |
1827 | throw new java.io.IOException( "Error in Base64 code reading stream." ); | |
1828 | } // end else | |
1829 | } // end read | |
1830 | | |
1831 | | |
1832 | /** | |
1833 | * Calls {@link #read()} repeatedly until the end of stream | |
1834 | * is reached or <var>len</var> bytes are read. | |
1835 | * Returns number of bytes read into array or -1 if | |
1836 | * end of stream is encountered. | |
1837 | * | |
1838 | * @param dest array to hold values | |
1839 | * @param off offset for array | |
1840 | * @param len max number of bytes to read into array | |
1841 | * @return bytes read into array or -1 if end of stream is encountered. | |
1842 | * @since 1.3 | |
1843 | */ | |
1844 | @Override | |
1845 | public int read( byte[] dest, int off, int len ) | |
1846 | throws java.io.IOException { | |
1847 | int i; | |
1848 | int b; | |
1849 |
3
1. read : changed conditional boundary → NO_COVERAGE 2. read : Changed increment from 1 to -1 → NO_COVERAGE 3. read : negated conditional → NO_COVERAGE |
for( i = 0; i < len; i++ ) { |
1850 | b = read(); | |
1851 | | |
1852 |
2
1. read : changed conditional boundary → NO_COVERAGE 2. read : negated conditional → NO_COVERAGE |
if( b >= 0 ) { |
1853 |
1
1. read : Replaced integer addition with subtraction → NO_COVERAGE |
dest[off + i] = (byte) b; |
1854 | } | |
1855 |
1
1. read : negated conditional → NO_COVERAGE |
else if( i == 0 ) { |
1856 |
1
1. read : replaced return of integer sized value with (x == 0 ? 1 : 0) → NO_COVERAGE |
return -1; |
1857 | } | |
1858 | else { | |
1859 | break; // Out of 'for' loop | |
1860 | } // Out of 'for' loop | |
1861 | } // end for: each byte read | |
1862 |
1
1. read : replaced return of integer sized value with (x == 0 ? 1 : 0) → NO_COVERAGE |
return i; |
1863 | } // end read | |
1864 | | |
1865 | } // end inner class InputStream | |
1866 | | |
1867 | | |
1868 | | |
1869 | | |
1870 | | |
1871 | | |
1872 | /* ******** I N N E R C L A S S O U T P U T S T R E A M ******** */ | |
1873 | | |
1874 | | |
1875 | | |
1876 | /** | |
1877 | * A {@link Base64.OutputStream} will write data to another | |
1878 | * <tt>java.io.OutputStream</tt>, given in the constructor, | |
1879 | * and encode/decode to/from Base64 notation on the fly. | |
1880 | * | |
1881 | * @see Base64 | |
1882 | * @since 1.3 | |
1883 | */ | |
1884 | public static class OutputStream extends java.io.FilterOutputStream { | |
1885 | | |
1886 | private boolean encode; | |
1887 | private int position; | |
1888 | private byte[] buffer; | |
1889 | private int bufferLength; | |
1890 | private int lineLength; | |
1891 | private boolean breakLines; | |
1892 | private byte[] b4; // Scratch used in a few places | |
1893 | private boolean suspendEncoding; | |
1894 | private int options; // Record for later | |
1895 | private byte[] decodabet; // Local copies to avoid extra method calls | |
1896 | | |
1897 | /** | |
1898 | * Constructs a {@link Base64.OutputStream} in ENCODE mode. | |
1899 | * | |
1900 | * @param out the <tt>java.io.OutputStream</tt> to which data will be written. | |
1901 | * @since 1.3 | |
1902 | */ | |
1903 | public OutputStream( java.io.OutputStream out ) { | |
1904 | this( out, ENCODE ); | |
1905 | } // end constructor | |
1906 | | |
1907 | | |
1908 | /** | |
1909 | * Constructs a {@link Base64.OutputStream} in | |
1910 | * either ENCODE or DECODE mode. | |
1911 | * <p> | |
1912 | * Valid options:<pre> | |
1913 | * ENCODE or DECODE: Encode or Decode as data is read. | |
1914 | * DO_BREAK_LINES: don't break lines at 76 characters | |
1915 | * (only meaningful when encoding)</i> | |
1916 | * </pre> | |
1917 | * <p> | |
1918 | * Example: <code>new Base64.OutputStream( out, Base64.ENCODE )</code> | |
1919 | * | |
1920 | * @param out the <tt>java.io.OutputStream</tt> to which data will be written. | |
1921 | * @param options Specified options. | |
1922 | * @see Base64#ENCODE | |
1923 | * @see Base64#DECODE | |
1924 | * @see Base64#DO_BREAK_LINES | |
1925 | * @since 1.3 | |
1926 | */ | |
1927 | public OutputStream( java.io.OutputStream out, int options ) { | |
1928 | super( out ); | |
1929 |
2
1. 2. |
this.breakLines = (options & DO_BREAK_LINES) != 0; |
1930 |
2
1. 2. |
this.encode = (options & ENCODE) != 0; |
1931 |
1
1. |
this.bufferLength = encode ? 3 : 4; |
1932 | this.buffer = new byte[ bufferLength ]; | |
1933 | this.position = 0; | |
1934 | this.lineLength = 0; | |
1935 | this.suspendEncoding = false; | |
1936 | this.b4 = new byte[4]; | |
1937 | this.options = options; | |
1938 | this.decodabet = getDecodabet(options); | |
1939 | } // end constructor | |
1940 | | |
1941 | | |
1942 | /** | |
1943 | * Writes the byte to the output stream after | |
1944 | * converting to/from Base64 notation. | |
1945 | * When encoding, bytes are buffered three | |
1946 | * at a time before the output stream actually | |
1947 | * gets a write() call. | |
1948 | * When decoding, bytes are buffered four | |
1949 | * at a time. | |
1950 | * | |
1951 | * @param theByte the byte to write | |
1952 | * @since 1.3 | |
1953 | */ | |
1954 | @Override | |
1955 | public void write(int theByte) | |
1956 | throws java.io.IOException { | |
1957 | // Encoding suspended? | |
1958 |
1
1. write : negated conditional → NO_COVERAGE |
if( suspendEncoding ) { |
1959 |
1
1. write : removed call to java/io/OutputStream::write → NO_COVERAGE |
this.out.write( theByte ); |
1960 | return; | |
1961 | } // end if: supsended | |
1962 | | |
1963 | // Encode? | |
1964 |
1
1. write : negated conditional → NO_COVERAGE |
if( encode ) { |
1965 |
1
1. write : Replaced integer addition with subtraction → NO_COVERAGE |
buffer[ position++ ] = (byte)theByte; |
1966 |
2
1. write : changed conditional boundary → NO_COVERAGE 2. write : negated conditional → NO_COVERAGE |
if( position >= bufferLength ) { // Enough to encode. |
1967 | | |
1968 |
1
1. write : removed call to java/io/OutputStream::write → NO_COVERAGE |
this.out.write( encode3to4( b4, buffer, bufferLength, options ) ); |
1969 | ||
1970 |
1
1. write : Replaced integer addition with subtraction → NO_COVERAGE |
lineLength += 4; |
1971 |
3
1. write : changed conditional boundary → NO_COVERAGE 2. write : negated conditional → NO_COVERAGE 3. write : negated conditional → NO_COVERAGE |
if( breakLines && lineLength >= MAX_LINE_LENGTH ) { |
1972 |
1
1. write : removed call to java/io/OutputStream::write → NO_COVERAGE |
this.out.write( NEW_LINE ); |
1973 | lineLength = 0; | |
1974 | } // end if: end of line | |
1975 | ||
1976 | position = 0; | |
1977 | } // end if: enough to output | |
1978 | } // end if: encoding | |
1979 | ||
1980 | // Else, Decoding | |
1981 | else { | |
1982 | // Meaningful Base64 character? | |
1983 |
3
1. write : changed conditional boundary → NO_COVERAGE 2. write : Replaced bitwise AND with OR → NO_COVERAGE 3. write : negated conditional → NO_COVERAGE |
if( decodabet[ theByte & 0x7f ] > WHITE_SPACE_ENC ) { |
1984 |
1
1. write : Replaced integer addition with subtraction → NO_COVERAGE |
buffer[ position++ ] = (byte)theByte; |
1985 |
2
1. write : changed conditional boundary → NO_COVERAGE 2. write : negated conditional → NO_COVERAGE |
if( position >= bufferLength ) { // Enough to output. |
1986 | | |
1987 | int len = Base64.decode4to3( buffer, 0, b4, 0, options ); | |
1988 |
1
1. write : removed call to java/io/OutputStream::write → NO_COVERAGE |
out.write( b4, 0, len ); |
1989 | position = 0; | |
1990 | } // end if: enough to output | |
1991 | } // end if: meaningful base64 character | |
1992 |
2
1. write : Replaced bitwise AND with OR → NO_COVERAGE 2. write : negated conditional → NO_COVERAGE |
else if( decodabet[ theByte & 0x7f ] != WHITE_SPACE_ENC ) { |
1993 | throw new java.io.IOException( "Invalid character in Base64 data." ); | |
1994 | } // end else: not white space either | |
1995 | } // end else: decoding | |
1996 | } // end write | |
1997 | | |
1998 | | |
1999 | | |
2000 | /** | |
2001 | * Calls {@link #write(int)} repeatedly until <var>len</var> | |
2002 | * bytes are written. | |
2003 | * | |
2004 | * @param theBytes array from which to read bytes | |
2005 | * @param off offset for array | |
2006 | * @param len max number of bytes to read into array | |
2007 | * @since 1.3 | |
2008 | */ | |
2009 | @Override | |
2010 | public void write( byte[] theBytes, int off, int len ) | |
2011 | throws java.io.IOException { | |
2012 | // Encoding suspended? | |
2013 |
1
1. write : negated conditional → NO_COVERAGE |
if( suspendEncoding ) { |
2014 |
1
1. write : removed call to java/io/OutputStream::write → NO_COVERAGE |
this.out.write( theBytes, off, len ); |
2015 | return; | |
2016 | } // end if: supsended | |
2017 | | |
2018 |
3
1. write : changed conditional boundary → NO_COVERAGE 2. write : Changed increment from 1 to -1 → NO_COVERAGE 3. write : negated conditional → NO_COVERAGE |
for( int i = 0; i < len; i++ ) { |
2019 |
2
1. write : Replaced integer addition with subtraction → NO_COVERAGE 2. write : removed call to org/graphstream/stream/netstream/packing/Base64$OutputStream::write → NO_COVERAGE |
write( theBytes[ off + i ] ); |
2020 | } // end for: each byte written | |
2021 | | |
2022 | } // end write | |
2023 | | |
2024 | | |
2025 | | |
2026 | /** | |
2027 | * Method added by PHIL. [Thanks, PHIL. -Rob] | |
2028 | * This pads the buffer without closing the stream. | |
2029 | * @throws java.io.IOException if there's an error. | |
2030 | */ | |
2031 | public void flushBase64() throws java.io.IOException { | |
2032 |
2
1. flushBase64 : changed conditional boundary → NO_COVERAGE 2. flushBase64 : negated conditional → NO_COVERAGE |
if( position > 0 ) { |
2033 |
1
1. flushBase64 : negated conditional → NO_COVERAGE |
if( encode ) { |
2034 |
1
1. flushBase64 : removed call to java/io/OutputStream::write → NO_COVERAGE |
out.write( encode3to4( b4, buffer, position, options ) ); |
2035 | position = 0; | |
2036 | } // end if: encoding | |
2037 | else { | |
2038 | throw new java.io.IOException( "Base64 input not properly padded." ); | |
2039 | } // end else: decoding | |
2040 | } // end if: buffer partially full | |
2041 | ||
2042 | } // end flush | |
2043 | ||
2044 | | |
2045 | /** | |
2046 | * Flushes and closes (I think, in the superclass) the stream. | |
2047 | * | |
2048 | * @since 1.3 | |
2049 | */ | |
2050 | @Override | |
2051 | public void close() throws java.io.IOException { | |
2052 | // 1. Ensure that pending characters are written | |
2053 |
1
1. close : removed call to org/graphstream/stream/netstream/packing/Base64$OutputStream::flushBase64 → NO_COVERAGE |
flushBase64(); |
2054 | ||
2055 | // 2. Actually close the stream | |
2056 | // Base class both flushes and closes. | |
2057 |
1
1. close : removed call to java/io/FilterOutputStream::close → NO_COVERAGE |
super.close(); |
2058 | | |
2059 | buffer = null; | |
2060 | out = null; | |
2061 | } // end close | |
2062 | | |
2063 | | |
2064 | | |
2065 | /** | |
2066 | * Suspends encoding of the stream. | |
2067 | * May be helpful if you need to embed a piece of | |
2068 | * base64-encoded data in a stream. | |
2069 | * | |
2070 | * @throws java.io.IOException if there's an error flushing | |
2071 | * @since 1.5.1 | |
2072 | */ | |
2073 | public void suspendEncoding() throws java.io.IOException { | |
2074 |
1
1. suspendEncoding : removed call to org/graphstream/stream/netstream/packing/Base64$OutputStream::flushBase64 → NO_COVERAGE |
flushBase64(); |
2075 | this.suspendEncoding = true; | |
2076 | } // end suspendEncoding | |
2077 | | |
2078 | | |
2079 | /** | |
2080 | * Resumes encoding of the stream. | |
2081 | * May be helpful if you need to embed a piece of | |
2082 | * base64-encoded data in a stream. | |
2083 | * | |
2084 | * @since 1.5.1 | |
2085 | */ | |
2086 | public void resumeEncoding() { | |
2087 | this.suspendEncoding = false; | |
2088 | } // end resumeEncoding | |
2089 | | |
2090 | | |
2091 | | |
2092 | } // end inner class OutputStream | |
2093 | | |
2094 | | |
2095 | } // end class Base64 | |
Mutations | ||
443 |
1.1 2.2 |
|
444 |
1.1 |
|
445 |
1.1 2.2 |
|
446 |
1.1 |
|
448 |
1.1 |
|
461 |
1.1 2.2 |
|
462 |
1.1 |
|
463 |
1.1 2.2 |
|
464 |
1.1 |
|
466 |
1.1 |
|
498 |
1.1 |
|
542 |
1.1 2.2 3.3 4.4 5.5 6.6 |
|
543 |
1.1 2.2 3.3 4.4 5.5 |
|
544 |
1.1 2.2 3.3 4.4 5.5 |
|
549 |
1.1 |
|
550 |
1.1 2.2 3.3 |
|
551 |
1.1 2.2 3.3 |
|
552 |
1.1 2.2 |
|
553 |
1.1 |
|
556 |
1.1 |
|
557 |
1.1 2.2 3.3 |
|
558 |
1.1 2.2 3.3 |
|
559 |
1.1 |
|
560 |
1.1 |
|
563 |
1.1 |
|
564 |
1.1 2.2 3.3 |
|
565 |
1.1 |
|
566 |
1.1 |
|
567 |
1.1 |
|
570 |
1.1 |
|
591 |
1.1 |
|
615 |
1.1 |
|
619 |
1.1 2.2 3.3 |
|
620 |
1.1 |
|
648 |
1.1 |
|
685 |
1.1 |
|
699 |
1.1 |
|
700 |
1.1 2.2 |
|
708 |
1.1 |
|
716 |
1.1 2.2 |
|
717 |
1.1 2.2 |
|
718 |
1.1 2.2 |
|
719 |
1.1 2.2 |
|
724 |
1.1 |
|
728 |
1.1 |
|
755 |
1.1 |
|
790 |
1.1 |
|
823 |
1.1 |
|
865 |
1.1 |
|
868 |
1.1 |
|
894 |
1.1 |
|
918 |
1.1 |
|
922 |
1.1 2.2 |
|
926 |
1.1 2.2 |
|
930 |
1.1 2.2 3.3 |
|
938 |
1.1 2.2 |
|
946 |
1.1 |
|
949 |
1.1 |
|
950 |
1.1 |
|
958 |
1.1 2.2 |
|
959 |
1.1 2.2 |
|
960 |
1.1 2.2 |
|
963 |
1.1 |
|
968 |
1.1 2.2 |
|
977 |
1.1 2.2 3.3 4.4 5.5 6.6 |
|
978 |
1.1 |
|
979 |
1.1 2.2 |
|
986 |
1.1 |
|
988 |
1.1 2.2 3.3 4.4 |
|
989 |
1.1 |
|
991 |
1.1 |
|
992 |
1.1 2.2 3.3 |
|
994 |
1.1 |
|
995 |
1.1 |
|
1000 |
1.1 2.2 |
|
1001 |
1.1 2.2 |
|
1002 |
1.1 |
|
1007 |
1.1 2.2 3.3 |
|
1013 |
1.1 |
|
1015 |
1.1 |
|
1018 |
1.1 |
|
1065 |
1.1 |
|
1068 |
1.1 |
|
1071 |
1.1 2.2 3.3 4.4 5.5 |
|
1075 |
1.1 2.2 3.3 4.4 5.5 |
|
1084 |
1.1 2.2 |
|
1088 |
1.1 2.2 3.3 |
|
1089 |
1.1 2.2 3.3 |
|
1091 |
1.1 |
|
1092 |
1.1 |
|
1096 |
1.1 2.2 |
|
1101 |
1.1 2.2 3.3 4.4 |
|
1102 |
1.1 2.2 3.3 |
|
1103 |
1.1 2.2 3.3 |
|
1105 |
1.1 |
|
1106 |
1.1 2.2 |
|
1107 |
1.1 |
|
1117 |
1.1 2.2 3.3 4.4 5.5 |
|
1118 |
1.1 2.2 3.3 |
|
1119 |
1.1 2.2 3.3 |
|
1120 |
1.1 2.2 |
|
1123 |
1.1 |
|
1124 |
1.1 2.2 |
|
1125 |
1.1 |
|
1127 |
1.1 |
|
1156 |
1.1 |
|
1182 |
1.1 |
|
1185 |
1.1 2.2 3.3 4.4 5.5 |
|
1190 |
1.1 |
|
1191 |
1.1 |
|
1192 |
1.1 2.2 |
|
1199 |
1.1 2.2 |
|
1208 |
1.1 2.2 3.3 4.4 |
|
1210 |
1.1 |
|
1215 |
1.1 2.2 |
|
1216 |
1.1 2.2 |
|
1217 |
1.1 |
|
1218 |
1.1 2.2 |
|
1219 |
1.1 |
|
1223 |
1.1 |
|
1232 |
1.1 |
|
1237 |
1.1 |
|
1238 |
1.1 |
|
1254 |
1.1 |
|
1272 |
1.1 |
|
1290 |
1.1 2.2 |
|
1291 |
1.1 2.2 3.3 4.4 |
|
1293 |
1.1 2.2 3.3 4.4 |
|
1294 |
1.1 |
|
1306 |
1.1 2.2 |
|
1307 |
1.1 |
|
1315 |
1.1 |
|
1319 |
1.1 2.2 3.3 |
|
1320 |
1.1 2.2 3.3 |
|
1321 |
1.1 2.2 3.3 |
|
1327 |
1.1 |
|
1346 |
1.1 |
|
1381 |
1.1 |
|
1393 |
1.1 |
|
1394 |
1.1 |
|
1396 |
1.1 |
|
1411 |
1.1 2.2 |
|
1412 |
1.1 2.2 |
|
1415 |
1.1 |
|
1437 |
1.1 |
|
1445 |
1.1 |
|
1451 |
1.1 2.2 |
|
1477 |
1.1 |
|
1483 |
1.1 2.2 |
|
1519 |
1.1 2.2 |
|
1531 |
1.1 2.2 |
|
1532 |
1.1 |
|
1537 |
1.1 |
|
1544 |
1.1 2.2 |
|
1547 |
1.1 |
|
1575 |
1.1 2.2 |
|
1585 |
1.1 2.2 |
|
1586 |
1.1 |
|
1597 |
1.1 2.2 |
|
1600 |
1.1 |
|
1619 |
1.1 |
|
1625 |
1.1 2.2 |
|
1647 |
1.1 |
|
1653 |
1.1 2.2 |
|
1719 |
1.1 2.2 3.3 |
|
1720 |
1.1 2.2 3.3 |
|
1721 |
1.1 |
|
1739 |
1.1 2.2 |
|
1740 |
1.1 |
|
1743 |
1.1 2.2 3.3 |
|
1747 |
1.1 2.2 |
|
1749 |
1.1 |
|
1756 |
1.1 2.2 |
|
1762 |
1.1 |
|
1770 |
1.1 2.2 3.3 |
|
1773 |
1.1 2.2 |
|
1774 |
1.1 2.2 3.3 |
|
1776 |
1.1 2.2 |
|
1783 |
1.1 |
|
1787 |
1.1 |
|
1788 |
1.1 |
|
1799 |
1.1 2.2 |
|
1801 |
1.1 2.2 |
|
1802 |
1.1 |
|
1805 |
1.1 2.2 3.3 4.4 |
|
1807 |
1.1 |
|
1810 |
1.1 |
|
1814 |
1.1 |
|
1816 |
1.1 2.2 |
|
1820 |
1.1 2.2 |
|
1849 |
1.1 2.2 3.3 |
|
1852 |
1.1 2.2 |
|
1853 |
1.1 |
|
1855 |
1.1 |
|
1856 |
1.1 |
|
1862 |
1.1 |
|
1929 |
1.1 2.2 |
|
1930 |
1.1 2.2 |
|
1931 |
1.1 |
|
1958 |
1.1 |
|
1959 |
1.1 |
|
1964 |
1.1 |
|
1965 |
1.1 |
|
1966 |
1.1 2.2 |
|
1968 |
1.1 |
|
1970 |
1.1 |
|
1971 |
1.1 2.2 3.3 |
|
1972 |
1.1 |
|
1983 |
1.1 2.2 3.3 |
|
1984 |
1.1 |
|
1985 |
1.1 2.2 |
|
1988 |
1.1 |
|
1992 |
1.1 2.2 |
|
2013 |
1.1 |
|
2014 |
1.1 |
|
2018 |
1.1 2.2 3.3 |
|
2019 |
1.1 2.2 |
|
2032 |
1.1 2.2 |
|
2033 |
1.1 |
|
2034 |
1.1 |
|
2053 |
1.1 |
|
2057 |
1.1 |
|
2074 |
1.1 |