Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one |
| 3 | * or more contributor license agreements. See the NOTICE file |
| 4 | * distributed with this work for additional information |
| 5 | * regarding copyright ownership. The ASF licenses this file |
| 6 | * to you under the Apache License, Version 2.0 (the |
| 7 | * "License"); you may not use this file except in compliance |
| 8 | * with the License. You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, |
| 13 | * software distributed under the License is distributed on an |
| 14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| 15 | * KIND, either express or implied. See the License for the |
| 16 | * specific language governing permissions and limitations |
| 17 | * under the License. |
| 18 | */ |
| 19 | package org.apache.commons.compress.archivers.tar; |
| 20 | |
| 21 | import java.io.File; |
Stefan Bodewig | 69ceb4e | 2012-03-18 17:16:51 +0000 | [diff] [blame] | 22 | import java.io.IOException; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 23 | import java.util.Date; |
| 24 | import java.util.Locale; |
| 25 | |
| 26 | import org.apache.commons.compress.archivers.ArchiveEntry; |
Stefan Bodewig | 69ceb4e | 2012-03-18 17:16:51 +0000 | [diff] [blame] | 27 | import org.apache.commons.compress.archivers.zip.ZipEncoding; |
Sebastian Bazley | 70d0fce | 2012-03-31 11:19:10 +0000 | [diff] [blame] | 28 | import org.apache.commons.compress.utils.ArchiveUtils; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 29 | |
| 30 | /** |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 31 | * This class represents an entry in a Tar archive. It consists |
| 32 | * of the entry's header, as well as the entry's File. Entries |
| 33 | * can be instantiated in one of three ways, depending on how |
| 34 | * they are to be used. |
| 35 | * <p> |
| 36 | * TarEntries that are created from the header bytes read from |
| 37 | * an archive are instantiated with the TarEntry( byte[] ) |
| 38 | * constructor. These entries will be used when extracting from |
| 39 | * or listing the contents of an archive. These entries have their |
| 40 | * header filled in using the header bytes. They also set the File |
| 41 | * to null, since they reference an archive entry not a file. |
| 42 | * <p> |
| 43 | * TarEntries that are created from Files that are to be written |
| 44 | * into an archive are instantiated with the TarEntry( File ) |
| 45 | * constructor. These entries have their header filled in using |
| 46 | * the File's information. They also keep a reference to the File |
| 47 | * for convenience when writing entries. |
| 48 | * <p> |
| 49 | * Finally, TarEntries can be constructed from nothing but a name. |
| 50 | * This allows the programmer to construct the entry by hand, for |
| 51 | * instance when only an InputStream is available for writing to |
| 52 | * the archive, and the header information is constructed from |
| 53 | * other information. In this case the header fields are set to |
| 54 | * defaults and the File is set to null. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 55 | * |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 56 | * <p> |
| 57 | * The C structure for a Tar Entry's header is: |
| 58 | * <pre> |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 59 | * struct header { |
Sebastian Bazley | 8118f82 | 2009-04-02 23:34:48 +0000 | [diff] [blame] | 60 | * char name[100]; // TarConstants.NAMELEN - offset 0 |
| 61 | * char mode[8]; // TarConstants.MODELEN - offset 100 |
| 62 | * char uid[8]; // TarConstants.UIDLEN - offset 108 |
| 63 | * char gid[8]; // TarConstants.GIDLEN - offset 116 |
| 64 | * char size[12]; // TarConstants.SIZELEN - offset 124 |
| 65 | * char mtime[12]; // TarConstants.MODTIMELEN - offset 136 |
| 66 | * char chksum[8]; // TarConstants.CHKSUMLEN - offset 148 |
| 67 | * char linkflag[1]; // - offset 156 |
| 68 | * char linkname[100]; // TarConstants.NAMELEN - offset 157 |
Sebastian Bazley | 24f9c9b | 2009-04-02 15:19:17 +0000 | [diff] [blame] | 69 | * The following fields are only present in new-style POSIX tar archives: |
Sebastian Bazley | 8118f82 | 2009-04-02 23:34:48 +0000 | [diff] [blame] | 70 | * char magic[6]; // TarConstants.MAGICLEN - offset 257 |
| 71 | * char version[2]; // TarConstants.VERSIONLEN - offset 263 |
| 72 | * char uname[32]; // TarConstants.UNAMELEN - offset 265 |
| 73 | * char gname[32]; // TarConstants.GNAMELEN - offset 297 |
| 74 | * char devmajor[8]; // TarConstants.DEVLEN - offset 329 |
| 75 | * char devminor[8]; // TarConstants.DEVLEN - offset 337 |
| 76 | * char prefix[155]; // TarConstants.PREFIXLEN - offset 345 |
| 77 | * // Used if "name" field is not long enough to hold the path |
| 78 | * char pad[12]; // NULs - offset 500 |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 79 | * } header; |
Sebastian Bazley | 24f9c9b | 2009-04-02 15:19:17 +0000 | [diff] [blame] | 80 | * All unused bytes are set to null. |
| 81 | * New-style GNU tar files are slightly different from the above. |
Sebastian Bazley | 16dc21b | 2012-02-23 00:16:07 +0000 | [diff] [blame] | 82 | * For values of size larger than 077777777777L (11 7s) |
| 83 | * or uid and gid larger than 07777777L (7 7s) |
| 84 | * the sign bit of the first byte is set, and the rest of the |
| 85 | * field is the binary representation of the number. |
| 86 | * See TarUtils.parseOctalOrBinary. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 87 | * </pre> |
Sebastian Bazley | 99870ef | 2009-03-28 00:04:36 +0000 | [diff] [blame] | 88 | * |
Stefan Bodewig | aa9d0bc | 2011-07-23 05:03:52 +0000 | [diff] [blame] | 89 | * <p> |
| 90 | * The C structure for a old GNU Tar Entry's header is: |
| 91 | * <pre> |
| 92 | * struct oldgnu_header { |
| 93 | * char unused_pad1[345]; // TarConstants.PAD1LEN_GNU - offset 0 |
| 94 | * char atime[12]; // TarConstants.ATIMELEN_GNU - offset 345 |
| 95 | * char ctime[12]; // TarConstants.CTIMELEN_GNU - offset 357 |
| 96 | * char offset[12]; // TarConstants.OFFSETLEN_GNU - offset 369 |
| 97 | * char longnames[4]; // TarConstants.LONGNAMESLEN_GNU - offset 381 |
| 98 | * char unused_pad2; // TarConstants.PAD2LEN_GNU - offset 385 |
| 99 | * struct sparse sp[4]; // TarConstants.SPARSELEN_GNU - offset 386 |
| 100 | * char isextended; // TarConstants.ISEXTENDEDLEN_GNU - offset 482 |
| 101 | * char realsize[12]; // TarConstants.REALSIZELEN_GNU - offset 483 |
| 102 | * char unused_pad[17]; // TarConstants.PAD3LEN_GNU - offset 495 |
| 103 | * }; |
| 104 | * </pre> |
| 105 | * Whereas, "struct sparse" is: |
| 106 | * <pre> |
| 107 | * struct sparse { |
| 108 | * char offset[12]; // offset 0 |
| 109 | * char numbytes[12]; // offset 12 |
| 110 | * }; |
| 111 | * </pre> |
| 112 | * |
Sebastian Bazley | 99870ef | 2009-03-28 00:04:36 +0000 | [diff] [blame] | 113 | * @NotThreadSafe |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 114 | */ |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 115 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 116 | public class TarArchiveEntry implements TarConstants, ArchiveEntry { |
| 117 | /** The entry's name. */ |
Stefan Bodewig | c0a9923 | 2013-01-01 17:10:05 +0000 | [diff] [blame] | 118 | private String name = ""; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 119 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 120 | /** The entry's permission mode. */ |
| 121 | private int mode; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 122 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 123 | /** The entry's user id. */ |
Stefan Bodewig | c0a9923 | 2013-01-01 17:10:05 +0000 | [diff] [blame] | 124 | private int userId = 0; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 125 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 126 | /** The entry's group id. */ |
Stefan Bodewig | c0a9923 | 2013-01-01 17:10:05 +0000 | [diff] [blame] | 127 | private int groupId = 0; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 128 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 129 | /** The entry's size. */ |
Stefan Bodewig | c0a9923 | 2013-01-01 17:10:05 +0000 | [diff] [blame] | 130 | private long size = 0; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 131 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 132 | /** The entry's modification time. */ |
| 133 | private long modTime; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 134 | |
Stefan Bodewig | 811fb4e | 2012-07-07 05:19:39 +0000 | [diff] [blame] | 135 | /** If the header checksum is reasonably correct. */ |
| 136 | private boolean checkSumOK; |
| 137 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 138 | /** The entry's link flag. */ |
| 139 | private byte linkFlag; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 140 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 141 | /** The entry's link name. */ |
Stefan Bodewig | c0a9923 | 2013-01-01 17:10:05 +0000 | [diff] [blame] | 142 | private String linkName = ""; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 143 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 144 | /** The entry's magic tag. */ |
Stefan Bodewig | c0a9923 | 2013-01-01 17:10:05 +0000 | [diff] [blame] | 145 | private String magic = MAGIC_POSIX; |
Sebastian Bazley | 8118f82 | 2009-04-02 23:34:48 +0000 | [diff] [blame] | 146 | /** The version of the format */ |
Stefan Bodewig | c0a9923 | 2013-01-01 17:10:05 +0000 | [diff] [blame] | 147 | private String version = VERSION_POSIX; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 148 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 149 | /** The entry's user name. */ |
Sebastian Bazley | 1d55670 | 2009-04-02 18:45:02 +0000 | [diff] [blame] | 150 | private String userName; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 151 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 152 | /** The entry's group name. */ |
Stefan Bodewig | c0a9923 | 2013-01-01 17:10:05 +0000 | [diff] [blame] | 153 | private String groupName = ""; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 154 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 155 | /** The entry's major device number. */ |
Stefan Bodewig | c0a9923 | 2013-01-01 17:10:05 +0000 | [diff] [blame] | 156 | private int devMajor = 0; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 157 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 158 | /** The entry's minor device number. */ |
Stefan Bodewig | c0a9923 | 2013-01-01 17:10:05 +0000 | [diff] [blame] | 159 | private int devMinor = 0; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 160 | |
Stefan Bodewig | aa9d0bc | 2011-07-23 05:03:52 +0000 | [diff] [blame] | 161 | /** If an extension sparse header follows. */ |
| 162 | private boolean isExtended; |
| 163 | |
| 164 | /** The entry's real size in case of a sparse file. */ |
| 165 | private long realSize; |
| 166 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 167 | /** The entry's file reference */ |
Stefan Bodewig | c0a9923 | 2013-01-01 17:10:05 +0000 | [diff] [blame] | 168 | private final File file; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 169 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 170 | /** Maximum length of a user's name in the tar file */ |
| 171 | public static final int MAX_NAMELEN = 31; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 172 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 173 | /** Default permissions bits for directories */ |
| 174 | public static final int DEFAULT_DIR_MODE = 040755; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 175 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 176 | /** Default permissions bits for files */ |
| 177 | public static final int DEFAULT_FILE_MODE = 0100644; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 178 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 179 | /** Convert millis to seconds */ |
| 180 | public static final int MILLIS_PER_SECOND = 1000; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 181 | |
| 182 | /** |
| 183 | * Construct an empty entry and prepares the header values. |
| 184 | */ |
Stefan Bodewig | 69ceb4e | 2012-03-18 17:16:51 +0000 | [diff] [blame] | 185 | private TarArchiveEntry() { |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 186 | String user = System.getProperty("user.name", ""); |
| 187 | |
| 188 | if (user.length() > MAX_NAMELEN) { |
| 189 | user = user.substring(0, MAX_NAMELEN); |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 190 | } |
| 191 | |
Sebastian Bazley | 1d55670 | 2009-04-02 18:45:02 +0000 | [diff] [blame] | 192 | this.userName = user; |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 193 | this.file = null; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 194 | } |
| 195 | |
| 196 | /** |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 197 | * Construct an entry with only a name. This allows the programmer |
| 198 | * to construct the entry's header "by hand". File is set to null. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 199 | * |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 200 | * @param name the entry name |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 201 | */ |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 202 | public TarArchiveEntry(String name) { |
Stefan Bodewig | 3e2ddad | 2009-08-25 08:11:44 +0000 | [diff] [blame] | 203 | this(name, false); |
| 204 | } |
| 205 | |
| 206 | /** |
| 207 | * Construct an entry with only a name. This allows the programmer |
| 208 | * to construct the entry's header "by hand". File is set to null. |
| 209 | * |
| 210 | * @param name the entry name |
| 211 | * @param preserveLeadingSlashes whether to allow leading slashes |
| 212 | * in the name. |
Sebastian Bazley | 6209f81 | 2010-05-10 17:36:40 +0000 | [diff] [blame] | 213 | * |
Gary D. Gregory | 2bd0dd4 | 2012-04-01 13:02:39 +0000 | [diff] [blame] | 214 | * @since 1.1 |
Stefan Bodewig | 3e2ddad | 2009-08-25 08:11:44 +0000 | [diff] [blame] | 215 | */ |
| 216 | public TarArchiveEntry(String name, boolean preserveLeadingSlashes) { |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 217 | this(); |
| 218 | |
Stefan Bodewig | 3e2ddad | 2009-08-25 08:11:44 +0000 | [diff] [blame] | 219 | name = normalizeFileName(name, preserveLeadingSlashes); |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 220 | boolean isDir = name.endsWith("/"); |
| 221 | |
Sebastian Bazley | 1d55670 | 2009-04-02 18:45:02 +0000 | [diff] [blame] | 222 | this.name = name; |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 223 | this.mode = isDir ? DEFAULT_DIR_MODE : DEFAULT_FILE_MODE; |
| 224 | this.linkFlag = isDir ? LF_DIR : LF_NORMAL; |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 225 | this.modTime = (new Date()).getTime() / MILLIS_PER_SECOND; |
Sebastian Bazley | 1d55670 | 2009-04-02 18:45:02 +0000 | [diff] [blame] | 226 | this.userName = ""; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 227 | } |
| 228 | |
| 229 | /** |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 230 | * Construct an entry with a name and a link flag. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 231 | * |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 232 | * @param name the entry name |
| 233 | * @param linkFlag the entry link flag. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 234 | */ |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 235 | public TarArchiveEntry(String name, byte linkFlag) { |
Stefan Bodewig | 6583714 | 2013-01-01 17:30:48 +0000 | [diff] [blame] | 236 | this(name, linkFlag, false); |
| 237 | } |
| 238 | |
| 239 | /** |
| 240 | * Construct an entry with a name and a link flag. |
Stefan Bodewig | 31184ea | 2013-03-10 18:56:06 +0000 | [diff] [blame] | 241 | * |
Stefan Bodewig | 6583714 | 2013-01-01 17:30:48 +0000 | [diff] [blame] | 242 | * @param name the entry name |
| 243 | * @param linkFlag the entry link flag. |
| 244 | * @param preserveLeadingSlashes whether to allow leading slashes |
| 245 | * in the name. |
| 246 | * |
| 247 | * @since 1.5 |
| 248 | */ |
| 249 | public TarArchiveEntry(String name, byte linkFlag, boolean preserveLeadingSlashes) { |
| 250 | this(name, preserveLeadingSlashes); |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 251 | this.linkFlag = linkFlag; |
Stefan Bodewig | 7bb5d88 | 2009-10-08 12:07:19 +0000 | [diff] [blame] | 252 | if (linkFlag == LF_GNUTYPE_LONGNAME) { |
| 253 | magic = MAGIC_GNU; |
| 254 | version = VERSION_GNU_SPACE; |
| 255 | } |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 256 | } |
| 257 | |
| 258 | /** |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 259 | * Construct an entry for a file. File is set to file, and the |
| 260 | * header is constructed from information from the file. |
Sebastian Bazley | fec51a1 | 2009-03-31 00:35:56 +0000 | [diff] [blame] | 261 | * The name is set from the normalized file path. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 262 | * |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 263 | * @param file The file that the entry represents. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 264 | */ |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 265 | public TarArchiveEntry(File file) { |
Stefan Bodewig | 3e2ddad | 2009-08-25 08:11:44 +0000 | [diff] [blame] | 266 | this(file, normalizeFileName(file.getPath(), false)); |
Sebastian Bazley | fec51a1 | 2009-03-31 00:35:56 +0000 | [diff] [blame] | 267 | } |
Stefan Bodewig | aa9d0bc | 2011-07-23 05:03:52 +0000 | [diff] [blame] | 268 | |
Sebastian Bazley | fec51a1 | 2009-03-31 00:35:56 +0000 | [diff] [blame] | 269 | /** |
| 270 | * Construct an entry for a file. File is set to file, and the |
| 271 | * header is constructed from information from the file. |
| 272 | * |
| 273 | * @param file The file that the entry represents. |
| 274 | * @param fileName the name to be used for the entry. |
| 275 | */ |
| 276 | public TarArchiveEntry(File file, String fileName) { |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 277 | this.file = file; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 278 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 279 | if (file.isDirectory()) { |
| 280 | this.mode = DEFAULT_DIR_MODE; |
| 281 | this.linkFlag = LF_DIR; |
| 282 | |
Sebastian Bazley | 1d55670 | 2009-04-02 18:45:02 +0000 | [diff] [blame] | 283 | int nameLength = fileName.length(); |
Christian Grobmeier | 3bb9282 | 2009-05-04 09:15:01 +0000 | [diff] [blame] | 284 | if (nameLength == 0 || fileName.charAt(nameLength - 1) != '/') { |
Sebastian Bazley | 1d55670 | 2009-04-02 18:45:02 +0000 | [diff] [blame] | 285 | this.name = fileName + "/"; |
| 286 | } else { |
Stefan Bodewig | aa9d0bc | 2011-07-23 05:03:52 +0000 | [diff] [blame] | 287 | this.name = fileName; |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 288 | } |
| 289 | } else { |
| 290 | this.mode = DEFAULT_FILE_MODE; |
| 291 | this.linkFlag = LF_NORMAL; |
Stefan Bodewig | c013e28 | 2009-03-18 04:38:47 +0000 | [diff] [blame] | 292 | this.size = file.length(); |
Sebastian Bazley | 1d55670 | 2009-04-02 18:45:02 +0000 | [diff] [blame] | 293 | this.name = fileName; |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 294 | } |
| 295 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 296 | this.modTime = file.lastModified() / MILLIS_PER_SECOND; |
Stefan Bodewig | c0a9923 | 2013-01-01 17:10:05 +0000 | [diff] [blame] | 297 | this.userName = ""; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 298 | } |
| 299 | |
| 300 | /** |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 301 | * Construct an entry from an archive's header bytes. File is set |
| 302 | * to null. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 303 | * |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 304 | * @param headerBuf The header bytes from a tar archive entry. |
Sebastian Bazley | b23b5c8 | 2012-02-23 00:57:54 +0000 | [diff] [blame] | 305 | * @throws IllegalArgumentException if any of the numeric fields have an invalid format |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 306 | */ |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 307 | public TarArchiveEntry(byte[] headerBuf) { |
Stefan Bodewig | e4ee376 | 2012-03-18 17:46:32 +0000 | [diff] [blame] | 308 | this(); |
| 309 | parseTarHeader(headerBuf); |
Stefan Bodewig | 69ceb4e | 2012-03-18 17:16:51 +0000 | [diff] [blame] | 310 | } |
| 311 | |
| 312 | /** |
| 313 | * Construct an entry from an archive's header bytes. File is set |
| 314 | * to null. |
| 315 | * |
| 316 | * @param headerBuf The header bytes from a tar archive entry. |
| 317 | * @param encoding encoding to use for file names |
Sebastian Bazley | ddbca72 | 2013-03-11 14:14:47 +0000 | [diff] [blame] | 318 | * @since 1.4 |
Stefan Bodewig | 69ceb4e | 2012-03-18 17:16:51 +0000 | [diff] [blame] | 319 | * @throws IllegalArgumentException if any of the numeric fields have an invalid format |
| 320 | */ |
Stefan Bodewig | e4ee376 | 2012-03-18 17:46:32 +0000 | [diff] [blame] | 321 | public TarArchiveEntry(byte[] headerBuf, ZipEncoding encoding) |
| 322 | throws IOException { |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 323 | this(); |
Stefan Bodewig | e4ee376 | 2012-03-18 17:46:32 +0000 | [diff] [blame] | 324 | parseTarHeader(headerBuf, encoding); |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 325 | } |
| 326 | |
| 327 | /** |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 328 | * Determine if the two entries are equal. Equality is determined |
| 329 | * by the header names being equal. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 330 | * |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 331 | * @param it Entry to be checked for equality. |
| 332 | * @return True if the entries are equal. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 333 | */ |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 334 | public boolean equals(TarArchiveEntry it) { |
| 335 | return getName().equals(it.getName()); |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 336 | } |
| 337 | |
| 338 | /** |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 339 | * Determine if the two entries are equal. Equality is determined |
| 340 | * by the header names being equal. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 341 | * |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 342 | * @param it Entry to be checked for equality. |
| 343 | * @return True if the entries are equal. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 344 | */ |
Stefan Bodewig | 46628ef | 2011-08-06 16:30:40 +0000 | [diff] [blame] | 345 | @Override |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 346 | public boolean equals(Object it) { |
| 347 | if (it == null || getClass() != it.getClass()) { |
| 348 | return false; |
| 349 | } |
| 350 | return equals((TarArchiveEntry) it); |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 351 | } |
| 352 | |
| 353 | /** |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 354 | * Hashcodes are based on entry names. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 355 | * |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 356 | * @return the entry hashcode |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 357 | */ |
Stefan Bodewig | 46628ef | 2011-08-06 16:30:40 +0000 | [diff] [blame] | 358 | @Override |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 359 | public int hashCode() { |
| 360 | return getName().hashCode(); |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 361 | } |
| 362 | |
| 363 | /** |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 364 | * Determine if the given entry is a descendant of this entry. |
| 365 | * Descendancy is determined by the name of the descendant |
| 366 | * starting with this entry's name. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 367 | * |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 368 | * @param desc Entry to be checked as a descendent of this. |
| 369 | * @return True if entry is a descendant of this. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 370 | */ |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 371 | public boolean isDescendent(TarArchiveEntry desc) { |
| 372 | return desc.getName().startsWith(getName()); |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 373 | } |
| 374 | |
| 375 | /** |
| 376 | * Get this entry's name. |
| 377 | * |
| 378 | * @return This entry's name. |
| 379 | */ |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 380 | public String getName() { |
| 381 | return name.toString(); |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 382 | } |
| 383 | |
| 384 | /** |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 385 | * Set this entry's name. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 386 | * |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 387 | * @param name This entry's new name. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 388 | */ |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 389 | public void setName(String name) { |
Stefan Bodewig | 3e2ddad | 2009-08-25 08:11:44 +0000 | [diff] [blame] | 390 | this.name = normalizeFileName(name, false); |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 391 | } |
| 392 | |
| 393 | /** |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 394 | * Set the mode for this entry |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 395 | * |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 396 | * @param mode the mode for this entry |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 397 | */ |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 398 | public void setMode(int mode) { |
| 399 | this.mode = mode; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 400 | } |
| 401 | |
| 402 | /** |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 403 | * Get this entry's link name. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 404 | * |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 405 | * @return This entry's link name. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 406 | */ |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 407 | public String getLinkName() { |
| 408 | return linkName.toString(); |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 409 | } |
| 410 | |
| 411 | /** |
Sebastian Bazley | 5b85bf1 | 2010-05-10 10:59:23 +0000 | [diff] [blame] | 412 | * Set this entry's link name. |
Sebastian Bazley | 6209f81 | 2010-05-10 17:36:40 +0000 | [diff] [blame] | 413 | * |
| 414 | * @param link the link name to use. |
| 415 | * |
Gary D. Gregory | 2bd0dd4 | 2012-04-01 13:02:39 +0000 | [diff] [blame] | 416 | * @since 1.1 |
Sebastian Bazley | 5b85bf1 | 2010-05-10 10:59:23 +0000 | [diff] [blame] | 417 | */ |
| 418 | public void setLinkName(String link) { |
Sebastian Bazley | 6209f81 | 2010-05-10 17:36:40 +0000 | [diff] [blame] | 419 | this.linkName = link; |
Sebastian Bazley | 5b85bf1 | 2010-05-10 10:59:23 +0000 | [diff] [blame] | 420 | } |
| 421 | |
| 422 | /** |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 423 | * Get this entry's user id. |
| 424 | * |
| 425 | * @return This entry's user id. |
| 426 | */ |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 427 | public int getUserId() { |
| 428 | return userId; |
| 429 | } |
| 430 | |
| 431 | /** |
| 432 | * Set this entry's user id. |
| 433 | * |
| 434 | * @param userId This entry's new user id. |
| 435 | */ |
| 436 | public void setUserId(int userId) { |
| 437 | this.userId = userId; |
| 438 | } |
| 439 | |
| 440 | /** |
| 441 | * Get this entry's group id. |
| 442 | * |
| 443 | * @return This entry's group id. |
| 444 | */ |
| 445 | public int getGroupId() { |
| 446 | return groupId; |
| 447 | } |
| 448 | |
| 449 | /** |
| 450 | * Set this entry's group id. |
| 451 | * |
| 452 | * @param groupId This entry's new group id. |
| 453 | */ |
| 454 | public void setGroupId(int groupId) { |
| 455 | this.groupId = groupId; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 456 | } |
| 457 | |
| 458 | /** |
| 459 | * Get this entry's user name. |
| 460 | * |
| 461 | * @return This entry's user name. |
| 462 | */ |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 463 | public String getUserName() { |
| 464 | return userName.toString(); |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 465 | } |
| 466 | |
| 467 | /** |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 468 | * Set this entry's user name. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 469 | * |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 470 | * @param userName This entry's new user name. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 471 | */ |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 472 | public void setUserName(String userName) { |
Sebastian Bazley | 1d55670 | 2009-04-02 18:45:02 +0000 | [diff] [blame] | 473 | this.userName = userName; |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 474 | } |
| 475 | |
| 476 | /** |
| 477 | * Get this entry's group name. |
| 478 | * |
| 479 | * @return This entry's group name. |
| 480 | */ |
| 481 | public String getGroupName() { |
| 482 | return groupName.toString(); |
| 483 | } |
| 484 | |
| 485 | /** |
| 486 | * Set this entry's group name. |
| 487 | * |
| 488 | * @param groupName This entry's new group name. |
| 489 | */ |
| 490 | public void setGroupName(String groupName) { |
Sebastian Bazley | 1d55670 | 2009-04-02 18:45:02 +0000 | [diff] [blame] | 491 | this.groupName = groupName; |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 492 | } |
| 493 | |
| 494 | /** |
| 495 | * Convenience method to set this entry's group and user ids. |
| 496 | * |
| 497 | * @param userId This entry's new user id. |
| 498 | * @param groupId This entry's new group id. |
| 499 | */ |
| 500 | public void setIds(int userId, int groupId) { |
| 501 | setUserId(userId); |
| 502 | setGroupId(groupId); |
| 503 | } |
| 504 | |
| 505 | /** |
| 506 | * Convenience method to set this entry's group and user names. |
| 507 | * |
| 508 | * @param userName This entry's new user name. |
| 509 | * @param groupName This entry's new group name. |
| 510 | */ |
| 511 | public void setNames(String userName, String groupName) { |
| 512 | setUserName(userName); |
| 513 | setGroupName(groupName); |
| 514 | } |
| 515 | |
| 516 | /** |
| 517 | * Set this entry's modification time. The parameter passed |
| 518 | * to this method is in "Java time". |
| 519 | * |
| 520 | * @param time This entry's new modification time. |
| 521 | */ |
| 522 | public void setModTime(long time) { |
| 523 | modTime = time / MILLIS_PER_SECOND; |
| 524 | } |
| 525 | |
| 526 | /** |
| 527 | * Set this entry's modification time. |
| 528 | * |
| 529 | * @param time This entry's new modification time. |
| 530 | */ |
| 531 | public void setModTime(Date time) { |
| 532 | modTime = time.getTime() / MILLIS_PER_SECOND; |
| 533 | } |
| 534 | |
| 535 | /** |
| 536 | * Set this entry's modification time. |
| 537 | * |
| 538 | * @return time This entry's new modification time. |
| 539 | */ |
| 540 | public Date getModTime() { |
| 541 | return new Date(modTime * MILLIS_PER_SECOND); |
| 542 | } |
| 543 | |
Stefan Bodewig | 17ffd7f | 2009-08-01 14:52:15 +0000 | [diff] [blame] | 544 | public Date getLastModifiedDate() { |
| 545 | return getModTime(); |
| 546 | } |
| 547 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 548 | /** |
Stefan Bodewig | 811fb4e | 2012-07-07 05:19:39 +0000 | [diff] [blame] | 549 | * Get this entry's checksum status. |
| 550 | * |
| 551 | * @return if the header checksum is reasonably correct |
| 552 | * @see TarUtils#verifyCheckSum(byte[]) |
| 553 | * @since 1.5 |
| 554 | */ |
| 555 | public boolean isCheckSumOK() { |
| 556 | return checkSumOK; |
| 557 | } |
| 558 | |
| 559 | /** |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 560 | * Get this entry's file. |
| 561 | * |
| 562 | * @return This entry's file. |
| 563 | */ |
| 564 | public File getFile() { |
| 565 | return file; |
| 566 | } |
| 567 | |
| 568 | /** |
| 569 | * Get this entry's mode. |
| 570 | * |
| 571 | * @return This entry's mode. |
| 572 | */ |
| 573 | public int getMode() { |
| 574 | return mode; |
| 575 | } |
| 576 | |
| 577 | /** |
| 578 | * Get this entry's file size. |
| 579 | * |
| 580 | * @return This entry's file size. |
| 581 | */ |
| 582 | public long getSize() { |
| 583 | return size; |
| 584 | } |
| 585 | |
| 586 | /** |
| 587 | * Set this entry's file size. |
| 588 | * |
| 589 | * @param size This entry's new file size. |
Stefan Bodewig | a6fbdae | 2011-12-08 14:03:57 +0000 | [diff] [blame] | 590 | * @throws IllegalArgumentException if the size is < 0. |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 591 | */ |
| 592 | public void setSize(long size) { |
Stefan Bodewig | 5dad112 | 2011-12-07 11:34:34 +0000 | [diff] [blame] | 593 | if (size < 0){ |
Stefan Bodewig | a6fbdae | 2011-12-08 14:03:57 +0000 | [diff] [blame] | 594 | throw new IllegalArgumentException("Size is out of range: "+size); |
Stefan Bodewig | 5dad112 | 2011-12-07 11:34:34 +0000 | [diff] [blame] | 595 | } |
| 596 | this.size = size; |
| 597 | } |
| 598 | |
| 599 | /** |
Stefan Bodewig | 5b13f84 | 2012-03-09 17:19:53 +0000 | [diff] [blame] | 600 | * Get this entry's major device number. |
| 601 | * |
| 602 | * @return This entry's major device number. |
Gary D. Gregory | 2bd0dd4 | 2012-04-01 13:02:39 +0000 | [diff] [blame] | 603 | * @since 1.4 |
Stefan Bodewig | 5b13f84 | 2012-03-09 17:19:53 +0000 | [diff] [blame] | 604 | */ |
| 605 | public int getDevMajor() { |
| 606 | return devMajor; |
| 607 | } |
| 608 | |
| 609 | /** |
| 610 | * Set this entry's major device number. |
| 611 | * |
| 612 | * @param devNo This entry's major device number. |
| 613 | * @throws IllegalArgumentException if the devNo is < 0. |
Gary D. Gregory | 2bd0dd4 | 2012-04-01 13:02:39 +0000 | [diff] [blame] | 614 | * @since 1.4 |
Stefan Bodewig | 5b13f84 | 2012-03-09 17:19:53 +0000 | [diff] [blame] | 615 | */ |
| 616 | public void setDevMajor(int devNo) { |
| 617 | if (devNo < 0){ |
| 618 | throw new IllegalArgumentException("Major device number is out of " |
| 619 | + "range: " + devNo); |
| 620 | } |
| 621 | this.devMajor = devNo; |
| 622 | } |
| 623 | |
| 624 | /** |
| 625 | * Get this entry's minor device number. |
| 626 | * |
| 627 | * @return This entry's minor device number. |
Gary D. Gregory | 2bd0dd4 | 2012-04-01 13:02:39 +0000 | [diff] [blame] | 628 | * @since 1.4 |
Stefan Bodewig | 5b13f84 | 2012-03-09 17:19:53 +0000 | [diff] [blame] | 629 | */ |
| 630 | public int getDevMinor() { |
| 631 | return devMinor; |
| 632 | } |
| 633 | |
| 634 | /** |
| 635 | * Set this entry's minor device number. |
| 636 | * |
| 637 | * @param devNo This entry's minor device number. |
| 638 | * @throws IllegalArgumentException if the devNo is < 0. |
Gary D. Gregory | 2bd0dd4 | 2012-04-01 13:02:39 +0000 | [diff] [blame] | 639 | * @since 1.4 |
Stefan Bodewig | 5b13f84 | 2012-03-09 17:19:53 +0000 | [diff] [blame] | 640 | */ |
| 641 | public void setDevMinor(int devNo) { |
| 642 | if (devNo < 0){ |
| 643 | throw new IllegalArgumentException("Minor device number is out of " |
| 644 | + "range: " + devNo); |
| 645 | } |
| 646 | this.devMinor = devNo; |
| 647 | } |
| 648 | |
| 649 | /** |
Stefan Bodewig | aa9d0bc | 2011-07-23 05:03:52 +0000 | [diff] [blame] | 650 | * Indicates in case of a sparse file if an extension sparse header |
| 651 | * follows. |
| 652 | * |
| 653 | * @return true if an extension sparse header follows. |
| 654 | */ |
| 655 | public boolean isExtended() { |
| 656 | return isExtended; |
| 657 | } |
| 658 | |
| 659 | /** |
| 660 | * Get this entry's real file size in case of a sparse file. |
| 661 | * |
| 662 | * @return This entry's real file size. |
| 663 | */ |
| 664 | public long getRealSize() { |
| 665 | return realSize; |
| 666 | } |
| 667 | |
| 668 | /** |
| 669 | * Indicate if this entry is a GNU sparse block |
| 670 | * |
| 671 | * @return true if this is a sparse extension provided by GNU tar |
| 672 | */ |
| 673 | public boolean isGNUSparse() { |
| 674 | return linkFlag == LF_GNUTYPE_SPARSE; |
| 675 | } |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 676 | |
| 677 | /** |
Stefan Bodewig | 601e4d7 | 2013-06-03 09:20:30 +0000 | [diff] [blame] | 678 | * Indicate if this entry is a GNU long linkname block |
| 679 | * |
| 680 | * @return true if this is a long name extension provided by GNU tar |
| 681 | */ |
| 682 | public boolean isGNULongLinkEntry() { |
| 683 | return linkFlag == LF_GNUTYPE_LONGLINK |
| 684 | && name.equals(GNU_LONGLINK); |
| 685 | } |
| 686 | |
| 687 | /** |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 688 | * Indicate if this entry is a GNU long name block |
| 689 | * |
| 690 | * @return true if this is a long name extension provided by GNU tar |
| 691 | */ |
| 692 | public boolean isGNULongNameEntry() { |
| 693 | return linkFlag == LF_GNUTYPE_LONGNAME |
Stefan Bodewig | f36320a | 2012-06-10 05:39:52 +0000 | [diff] [blame] | 694 | && name.equals(GNU_LONGLINK); |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 695 | } |
| 696 | |
| 697 | /** |
Sebastian Bazley | 33cd35e | 2010-05-09 20:38:20 +0000 | [diff] [blame] | 698 | * Check if this is a Pax header. |
| 699 | * |
Gary D. Gregory | aa1a75c | 2012-03-31 22:40:47 +0000 | [diff] [blame] | 700 | * @return {@code true} if this is a Pax header. |
Sebastian Bazley | 6209f81 | 2010-05-10 17:36:40 +0000 | [diff] [blame] | 701 | * |
Gary D. Gregory | 2bd0dd4 | 2012-04-01 13:02:39 +0000 | [diff] [blame] | 702 | * @since 1.1 |
| 703 | * |
Sebastian Bazley | 33cd35e | 2010-05-09 20:38:20 +0000 | [diff] [blame] | 704 | */ |
| 705 | public boolean isPaxHeader(){ |
Sebastian Bazley | 05b6eb1 | 2010-05-10 01:43:08 +0000 | [diff] [blame] | 706 | return linkFlag == LF_PAX_EXTENDED_HEADER_LC |
| 707 | || linkFlag == LF_PAX_EXTENDED_HEADER_UC; |
| 708 | } |
| 709 | |
| 710 | /** |
| 711 | * Check if this is a Pax header. |
| 712 | * |
Gary D. Gregory | aa1a75c | 2012-03-31 22:40:47 +0000 | [diff] [blame] | 713 | * @return {@code true} if this is a Pax header. |
Sebastian Bazley | 6209f81 | 2010-05-10 17:36:40 +0000 | [diff] [blame] | 714 | * |
Gary D. Gregory | 2bd0dd4 | 2012-04-01 13:02:39 +0000 | [diff] [blame] | 715 | * @since 1.1 |
Sebastian Bazley | 05b6eb1 | 2010-05-10 01:43:08 +0000 | [diff] [blame] | 716 | */ |
| 717 | public boolean isGlobalPaxHeader(){ |
| 718 | return linkFlag == LF_PAX_GLOBAL_EXTENDED_HEADER; |
Sebastian Bazley | 33cd35e | 2010-05-09 20:38:20 +0000 | [diff] [blame] | 719 | } |
| 720 | |
| 721 | /** |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 722 | * Return whether or not this entry represents a directory. |
| 723 | * |
| 724 | * @return True if this entry is a directory. |
| 725 | */ |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 726 | public boolean isDirectory() { |
| 727 | if (file != null) { |
| 728 | return file.isDirectory(); |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 729 | } |
| 730 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 731 | if (linkFlag == LF_DIR) { |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 732 | return true; |
| 733 | } |
| 734 | |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 735 | if (getName().endsWith("/")) { |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 736 | return true; |
| 737 | } |
| 738 | |
| 739 | return false; |
| 740 | } |
| 741 | |
| 742 | /** |
Stefan Bodewig | 86aaf84 | 2010-10-29 15:03:49 +0000 | [diff] [blame] | 743 | * Check if this is a "normal file" |
| 744 | * |
Gary D. Gregory | 2bd0dd4 | 2012-04-01 13:02:39 +0000 | [diff] [blame] | 745 | * @since 1.2 |
Stefan Bodewig | 86aaf84 | 2010-10-29 15:03:49 +0000 | [diff] [blame] | 746 | */ |
| 747 | public boolean isFile() { |
| 748 | if (file != null) { |
| 749 | return file.isFile(); |
| 750 | } |
| 751 | if (linkFlag == LF_OLDNORM || linkFlag == LF_NORMAL) { |
| 752 | return true; |
| 753 | } |
| 754 | return !getName().endsWith("/"); |
| 755 | } |
| 756 | |
| 757 | /** |
| 758 | * Check if this is a symbolic link entry. |
| 759 | * |
Gary D. Gregory | 2bd0dd4 | 2012-04-01 13:02:39 +0000 | [diff] [blame] | 760 | * @since 1.2 |
Stefan Bodewig | 86aaf84 | 2010-10-29 15:03:49 +0000 | [diff] [blame] | 761 | */ |
| 762 | public boolean isSymbolicLink() { |
| 763 | return linkFlag == LF_SYMLINK; |
| 764 | } |
| 765 | |
| 766 | /** |
| 767 | * Check if this is a link entry. |
| 768 | * |
Gary D. Gregory | 2bd0dd4 | 2012-04-01 13:02:39 +0000 | [diff] [blame] | 769 | * @since 1.2 |
Stefan Bodewig | 86aaf84 | 2010-10-29 15:03:49 +0000 | [diff] [blame] | 770 | */ |
| 771 | public boolean isLink() { |
| 772 | return linkFlag == LF_LINK; |
| 773 | } |
| 774 | |
| 775 | /** |
| 776 | * Check if this is a character device entry. |
| 777 | * |
Gary D. Gregory | 2bd0dd4 | 2012-04-01 13:02:39 +0000 | [diff] [blame] | 778 | * @since 1.2 |
Stefan Bodewig | 86aaf84 | 2010-10-29 15:03:49 +0000 | [diff] [blame] | 779 | */ |
| 780 | public boolean isCharacterDevice() { |
| 781 | return linkFlag == LF_CHR; |
| 782 | } |
| 783 | |
| 784 | /** |
| 785 | * Check if this is a block device entry. |
| 786 | * |
Gary D. Gregory | 2bd0dd4 | 2012-04-01 13:02:39 +0000 | [diff] [blame] | 787 | * @since 1.2 |
Stefan Bodewig | 86aaf84 | 2010-10-29 15:03:49 +0000 | [diff] [blame] | 788 | */ |
| 789 | public boolean isBlockDevice() { |
| 790 | return linkFlag == LF_BLK; |
| 791 | } |
| 792 | |
| 793 | /** |
| 794 | * Check if this is a FIFO (pipe) entry. |
| 795 | * |
Gary D. Gregory | 2bd0dd4 | 2012-04-01 13:02:39 +0000 | [diff] [blame] | 796 | * @since 1.2 |
Stefan Bodewig | 86aaf84 | 2010-10-29 15:03:49 +0000 | [diff] [blame] | 797 | */ |
| 798 | public boolean isFIFO() { |
| 799 | return linkFlag == LF_FIFO; |
| 800 | } |
| 801 | |
| 802 | /** |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 803 | * If this entry represents a file, and the file is a directory, return |
| 804 | * an array of TarEntries for this entry's children. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 805 | * |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 806 | * @return An array of TarEntry's for this entry's children. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 807 | */ |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 808 | public TarArchiveEntry[] getDirectoryEntries() { |
| 809 | if (file == null || !file.isDirectory()) { |
| 810 | return new TarArchiveEntry[0]; |
| 811 | } |
| 812 | |
| 813 | String[] list = file.list(); |
| 814 | TarArchiveEntry[] result = new TarArchiveEntry[list.length]; |
| 815 | |
| 816 | for (int i = 0; i < list.length; ++i) { |
| 817 | result[i] = new TarArchiveEntry(new File(file, list[i])); |
| 818 | } |
| 819 | |
| 820 | return result; |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 821 | } |
| 822 | |
| 823 | /** |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 824 | * Write an entry's header information to a header buffer. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 825 | * |
Stefan Bodewig | a6fbdae | 2011-12-08 14:03:57 +0000 | [diff] [blame] | 826 | * <p>This method does not use the star/GNU tar/BSD tar extensions.</p> |
| 827 | * |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 828 | * @param outbuf The tar entry header buffer to fill in. |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 829 | */ |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 830 | public void writeEntryHeader(byte[] outbuf) { |
Stefan Bodewig | 32619a8 | 2012-03-20 20:27:07 +0000 | [diff] [blame] | 831 | try { |
| 832 | writeEntryHeader(outbuf, TarUtils.DEFAULT_ENCODING, false); |
| 833 | } catch (IOException ex) { |
| 834 | try { |
| 835 | writeEntryHeader(outbuf, TarUtils.FALLBACK_ENCODING, false); |
| 836 | } catch (IOException ex2) { |
| 837 | // impossible |
| 838 | throw new RuntimeException(ex2); |
| 839 | } |
| 840 | } |
Stefan Bodewig | a6fbdae | 2011-12-08 14:03:57 +0000 | [diff] [blame] | 841 | } |
| 842 | |
| 843 | /** |
| 844 | * Write an entry's header information to a header buffer. |
| 845 | * |
| 846 | * @param outbuf The tar entry header buffer to fill in. |
Stefan Bodewig | 32619a8 | 2012-03-20 20:27:07 +0000 | [diff] [blame] | 847 | * @param encoding encoding to use when writing the file name. |
Stefan Bodewig | a6fbdae | 2011-12-08 14:03:57 +0000 | [diff] [blame] | 848 | * @param starMode whether to use the star/GNU tar/BSD tar |
Stefan Bodewig | be286da | 2012-03-05 19:34:12 +0000 | [diff] [blame] | 849 | * extension for numeric fields if their value doesn't fit in the |
| 850 | * maximum size of standard tar archives |
Gary D. Gregory | 2bd0dd4 | 2012-04-01 13:02:39 +0000 | [diff] [blame] | 851 | * @since 1.4 |
Stefan Bodewig | a6fbdae | 2011-12-08 14:03:57 +0000 | [diff] [blame] | 852 | */ |
Stefan Bodewig | 32619a8 | 2012-03-20 20:27:07 +0000 | [diff] [blame] | 853 | public void writeEntryHeader(byte[] outbuf, ZipEncoding encoding, |
| 854 | boolean starMode) throws IOException { |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 855 | int offset = 0; |
| 856 | |
Stefan Bodewig | 32619a8 | 2012-03-20 20:27:07 +0000 | [diff] [blame] | 857 | offset = TarUtils.formatNameBytes(name, outbuf, offset, NAMELEN, |
| 858 | encoding); |
Stefan Bodewig | be286da | 2012-03-05 19:34:12 +0000 | [diff] [blame] | 859 | offset = writeEntryHeaderField(mode, outbuf, offset, MODELEN, starMode); |
| 860 | offset = writeEntryHeaderField(userId, outbuf, offset, UIDLEN, |
| 861 | starMode); |
| 862 | offset = writeEntryHeaderField(groupId, outbuf, offset, GIDLEN, |
| 863 | starMode); |
| 864 | offset = writeEntryHeaderField(size, outbuf, offset, SIZELEN, starMode); |
| 865 | offset = writeEntryHeaderField(modTime, outbuf, offset, MODTIMELEN, |
| 866 | starMode); |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 867 | |
| 868 | int csOffset = offset; |
| 869 | |
| 870 | for (int c = 0; c < CHKSUMLEN; ++c) { |
| 871 | outbuf[offset++] = (byte) ' '; |
| 872 | } |
| 873 | |
| 874 | outbuf[offset++] = linkFlag; |
Stefan Bodewig | 32619a8 | 2012-03-20 20:27:07 +0000 | [diff] [blame] | 875 | offset = TarUtils.formatNameBytes(linkName, outbuf, offset, NAMELEN, |
| 876 | encoding); |
Sebastian Bazley | 1d55670 | 2009-04-02 18:45:02 +0000 | [diff] [blame] | 877 | offset = TarUtils.formatNameBytes(magic, outbuf, offset, MAGICLEN); |
Sebastian Bazley | 8118f82 | 2009-04-02 23:34:48 +0000 | [diff] [blame] | 878 | offset = TarUtils.formatNameBytes(version, outbuf, offset, VERSIONLEN); |
Stefan Bodewig | 32619a8 | 2012-03-20 20:27:07 +0000 | [diff] [blame] | 879 | offset = TarUtils.formatNameBytes(userName, outbuf, offset, UNAMELEN, |
| 880 | encoding); |
| 881 | offset = TarUtils.formatNameBytes(groupName, outbuf, offset, GNAMELEN, |
| 882 | encoding); |
Stefan Bodewig | be286da | 2012-03-05 19:34:12 +0000 | [diff] [blame] | 883 | offset = writeEntryHeaderField(devMajor, outbuf, offset, DEVLEN, |
| 884 | starMode); |
| 885 | offset = writeEntryHeaderField(devMinor, outbuf, offset, DEVLEN, |
| 886 | starMode); |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 887 | |
| 888 | while (offset < outbuf.length) { |
| 889 | outbuf[offset++] = 0; |
| 890 | } |
| 891 | |
| 892 | long chk = TarUtils.computeCheckSum(outbuf); |
| 893 | |
Sebastian Bazley | 1d55670 | 2009-04-02 18:45:02 +0000 | [diff] [blame] | 894 | TarUtils.formatCheckSumOctalBytes(chk, outbuf, csOffset, CHKSUMLEN); |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 895 | } |
| 896 | |
Stefan Bodewig | be286da | 2012-03-05 19:34:12 +0000 | [diff] [blame] | 897 | private int writeEntryHeaderField(long value, byte[] outbuf, int offset, |
| 898 | int length, boolean starMode) { |
| 899 | if (!starMode && (value < 0 |
| 900 | || value >= (1l << (3 * (length - 1))))) { |
| 901 | // value doesn't fit into field when written as octal |
| 902 | // number, will be written to PAX header or causes an |
| 903 | // error |
| 904 | return TarUtils.formatLongOctalBytes(0, outbuf, offset, length); |
| 905 | } |
| 906 | return TarUtils.formatLongOctalOrBinaryBytes(value, outbuf, offset, |
| 907 | length); |
| 908 | } |
| 909 | |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 910 | /** |
| 911 | * Parse an entry's header information from a header buffer. |
| 912 | * |
| 913 | * @param header The tar entry header buffer to get information from. |
Sebastian Bazley | b23b5c8 | 2012-02-23 00:57:54 +0000 | [diff] [blame] | 914 | * @throws IllegalArgumentException if any of the numeric fields have an invalid format |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 915 | */ |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 916 | public void parseTarHeader(byte[] header) { |
Stefan Bodewig | 69ceb4e | 2012-03-18 17:16:51 +0000 | [diff] [blame] | 917 | try { |
| 918 | parseTarHeader(header, TarUtils.DEFAULT_ENCODING); |
| 919 | } catch (IOException ex) { |
| 920 | try { |
| 921 | parseTarHeader(header, TarUtils.DEFAULT_ENCODING, true); |
| 922 | } catch (IOException ex2) { |
| 923 | // not really possible |
| 924 | throw new RuntimeException(ex2); |
| 925 | } |
| 926 | } |
| 927 | } |
| 928 | |
| 929 | /** |
| 930 | * Parse an entry's header information from a header buffer. |
| 931 | * |
| 932 | * @param header The tar entry header buffer to get information from. |
| 933 | * @param encoding encoding to use for file names |
Sebastian Bazley | ddbca72 | 2013-03-11 14:14:47 +0000 | [diff] [blame] | 934 | * @since 1.4 |
Stefan Bodewig | 69ceb4e | 2012-03-18 17:16:51 +0000 | [diff] [blame] | 935 | * @throws IllegalArgumentException if any of the numeric fields |
| 936 | * have an invalid format |
| 937 | */ |
| 938 | public void parseTarHeader(byte[] header, ZipEncoding encoding) |
| 939 | throws IOException { |
| 940 | parseTarHeader(header, encoding, false); |
| 941 | } |
| 942 | |
| 943 | private void parseTarHeader(byte[] header, ZipEncoding encoding, |
| 944 | final boolean oldStyle) |
| 945 | throws IOException { |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 946 | int offset = 0; |
| 947 | |
Stefan Bodewig | 69ceb4e | 2012-03-18 17:16:51 +0000 | [diff] [blame] | 948 | name = oldStyle ? TarUtils.parseName(header, offset, NAMELEN) |
| 949 | : TarUtils.parseName(header, offset, NAMELEN, encoding); |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 950 | offset += NAMELEN; |
Stefan Bodewig | 6c71a2b | 2012-03-04 07:28:12 +0000 | [diff] [blame] | 951 | mode = (int) TarUtils.parseOctalOrBinary(header, offset, MODELEN); |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 952 | offset += MODELEN; |
Sebastian Bazley | 7ee6b67 | 2012-02-22 23:42:49 +0000 | [diff] [blame] | 953 | userId = (int) TarUtils.parseOctalOrBinary(header, offset, UIDLEN); |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 954 | offset += UIDLEN; |
Sebastian Bazley | 7ee6b67 | 2012-02-22 23:42:49 +0000 | [diff] [blame] | 955 | groupId = (int) TarUtils.parseOctalOrBinary(header, offset, GIDLEN); |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 956 | offset += GIDLEN; |
Stefan Bodewig | 6846564 | 2011-12-05 09:58:04 +0000 | [diff] [blame] | 957 | size = TarUtils.parseOctalOrBinary(header, offset, SIZELEN); |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 958 | offset += SIZELEN; |
Stefan Bodewig | 6c71a2b | 2012-03-04 07:28:12 +0000 | [diff] [blame] | 959 | modTime = TarUtils.parseOctalOrBinary(header, offset, MODTIMELEN); |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 960 | offset += MODTIMELEN; |
Stefan Bodewig | 811fb4e | 2012-07-07 05:19:39 +0000 | [diff] [blame] | 961 | checkSumOK = TarUtils.verifyCheckSum(header); |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 962 | offset += CHKSUMLEN; |
| 963 | linkFlag = header[offset++]; |
Stefan Bodewig | 69ceb4e | 2012-03-18 17:16:51 +0000 | [diff] [blame] | 964 | linkName = oldStyle ? TarUtils.parseName(header, offset, NAMELEN) |
| 965 | : TarUtils.parseName(header, offset, NAMELEN, encoding); |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 966 | offset += NAMELEN; |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 967 | magic = TarUtils.parseName(header, offset, MAGICLEN); |
| 968 | offset += MAGICLEN; |
Sebastian Bazley | 8118f82 | 2009-04-02 23:34:48 +0000 | [diff] [blame] | 969 | version = TarUtils.parseName(header, offset, VERSIONLEN); |
| 970 | offset += VERSIONLEN; |
Stefan Bodewig | 69ceb4e | 2012-03-18 17:16:51 +0000 | [diff] [blame] | 971 | userName = oldStyle ? TarUtils.parseName(header, offset, UNAMELEN) |
| 972 | : TarUtils.parseName(header, offset, UNAMELEN, encoding); |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 973 | offset += UNAMELEN; |
Stefan Bodewig | 69ceb4e | 2012-03-18 17:16:51 +0000 | [diff] [blame] | 974 | groupName = oldStyle ? TarUtils.parseName(header, offset, GNAMELEN) |
| 975 | : TarUtils.parseName(header, offset, GNAMELEN, encoding); |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 976 | offset += GNAMELEN; |
Stefan Bodewig | 6c71a2b | 2012-03-04 07:28:12 +0000 | [diff] [blame] | 977 | devMajor = (int) TarUtils.parseOctalOrBinary(header, offset, DEVLEN); |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 978 | offset += DEVLEN; |
Stefan Bodewig | 6c71a2b | 2012-03-04 07:28:12 +0000 | [diff] [blame] | 979 | devMinor = (int) TarUtils.parseOctalOrBinary(header, offset, DEVLEN); |
Sebastian Bazley | 33cd35e | 2010-05-09 20:38:20 +0000 | [diff] [blame] | 980 | offset += DEVLEN; |
Stefan Bodewig | aa9d0bc | 2011-07-23 05:03:52 +0000 | [diff] [blame] | 981 | |
| 982 | int type = evaluateType(header); |
| 983 | switch (type) { |
| 984 | case FORMAT_OLDGNU: { |
| 985 | offset += ATIMELEN_GNU; |
| 986 | offset += CTIMELEN_GNU; |
| 987 | offset += OFFSETLEN_GNU; |
| 988 | offset += LONGNAMESLEN_GNU; |
| 989 | offset += PAD2LEN_GNU; |
| 990 | offset += SPARSELEN_GNU; |
| 991 | isExtended = TarUtils.parseBoolean(header, offset); |
| 992 | offset += ISEXTENDEDLEN_GNU; |
| 993 | realSize = TarUtils.parseOctal(header, offset, REALSIZELEN_GNU); |
| 994 | offset += REALSIZELEN_GNU; |
| 995 | break; |
Sebastian Bazley | 5b25f6c | 2010-05-10 09:36:15 +0000 | [diff] [blame] | 996 | } |
Stefan Bodewig | aa9d0bc | 2011-07-23 05:03:52 +0000 | [diff] [blame] | 997 | case FORMAT_POSIX: |
| 998 | default: { |
Stefan Bodewig | 69ceb4e | 2012-03-18 17:16:51 +0000 | [diff] [blame] | 999 | String prefix = oldStyle |
| 1000 | ? TarUtils.parseName(header, offset, PREFIXLEN) |
| 1001 | : TarUtils.parseName(header, offset, PREFIXLEN, encoding); |
Stefan Bodewig | aa9d0bc | 2011-07-23 05:03:52 +0000 | [diff] [blame] | 1002 | // SunOS tar -E does not add / to directory names, so fix |
| 1003 | // up to be consistent |
| 1004 | if (isDirectory() && !name.endsWith("/")){ |
| 1005 | name = name + "/"; |
| 1006 | } |
| 1007 | if (prefix.length() > 0){ |
| 1008 | name = prefix + "/" + name; |
| 1009 | } |
| 1010 | } |
Sebastian Bazley | 33cd35e | 2010-05-09 20:38:20 +0000 | [diff] [blame] | 1011 | } |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 1012 | } |
Stefan Bodewig | 32eea1e | 2009-03-17 12:53:22 +0000 | [diff] [blame] | 1013 | |
| 1014 | /** |
| 1015 | * Strips Windows' drive letter as well as any leading slashes, |
| 1016 | * turns path separators into forward slahes. |
| 1017 | */ |
Stefan Bodewig | 3e2ddad | 2009-08-25 08:11:44 +0000 | [diff] [blame] | 1018 | private static String normalizeFileName(String fileName, |
| 1019 | boolean preserveLeadingSlashes) { |
Stefan Bodewig | bed564b | 2010-02-18 12:34:02 +0000 | [diff] [blame] | 1020 | String osname = System.getProperty("os.name").toLowerCase(Locale.ENGLISH); |
Stefan Bodewig | 32eea1e | 2009-03-17 12:53:22 +0000 | [diff] [blame] | 1021 | |
| 1022 | if (osname != null) { |
| 1023 | |
| 1024 | // Strip off drive letters! |
| 1025 | // REVIEW Would a better check be "(File.separator == '\')"? |
| 1026 | |
| 1027 | if (osname.startsWith("windows")) { |
| 1028 | if (fileName.length() > 2) { |
| 1029 | char ch1 = fileName.charAt(0); |
| 1030 | char ch2 = fileName.charAt(1); |
| 1031 | |
| 1032 | if (ch2 == ':' |
| 1033 | && ((ch1 >= 'a' && ch1 <= 'z') |
| 1034 | || (ch1 >= 'A' && ch1 <= 'Z'))) { |
| 1035 | fileName = fileName.substring(2); |
| 1036 | } |
| 1037 | } |
| 1038 | } else if (osname.indexOf("netware") > -1) { |
| 1039 | int colon = fileName.indexOf(':'); |
| 1040 | if (colon != -1) { |
| 1041 | fileName = fileName.substring(colon + 1); |
| 1042 | } |
| 1043 | } |
| 1044 | } |
| 1045 | |
| 1046 | fileName = fileName.replace(File.separatorChar, '/'); |
| 1047 | |
| 1048 | // No absolute pathnames |
| 1049 | // Windows (and Posix?) paths can start with "\\NetworkDrive\", |
| 1050 | // so we loop on starting /'s. |
Stefan Bodewig | 3e2ddad | 2009-08-25 08:11:44 +0000 | [diff] [blame] | 1051 | while (!preserveLeadingSlashes && fileName.startsWith("/")) { |
Stefan Bodewig | 32eea1e | 2009-03-17 12:53:22 +0000 | [diff] [blame] | 1052 | fileName = fileName.substring(1); |
| 1053 | } |
| 1054 | return fileName; |
| 1055 | } |
Stefan Bodewig | aa9d0bc | 2011-07-23 05:03:52 +0000 | [diff] [blame] | 1056 | |
| 1057 | /** |
| 1058 | * Evaluate an entry's header format from a header buffer. |
| 1059 | * |
| 1060 | * @param header The tar entry header buffer to evaluate the format for. |
| 1061 | * @return format type |
| 1062 | */ |
| 1063 | private int evaluateType(byte[] header) { |
Sebastian Bazley | 70d0fce | 2012-03-31 11:19:10 +0000 | [diff] [blame] | 1064 | if (ArchiveUtils.matchAsciiBuffer(MAGIC_GNU, header, MAGIC_OFFSET, MAGICLEN)) { |
Stefan Bodewig | aa9d0bc | 2011-07-23 05:03:52 +0000 | [diff] [blame] | 1065 | return FORMAT_OLDGNU; |
Sebastian Bazley | a0e435e | 2012-03-31 10:59:47 +0000 | [diff] [blame] | 1066 | } |
Sebastian Bazley | 70d0fce | 2012-03-31 11:19:10 +0000 | [diff] [blame] | 1067 | if (ArchiveUtils.matchAsciiBuffer(MAGIC_POSIX, header, MAGIC_OFFSET, MAGICLEN)) { |
Stefan Bodewig | aa9d0bc | 2011-07-23 05:03:52 +0000 | [diff] [blame] | 1068 | return FORMAT_POSIX; |
Sebastian Bazley | a0e435e | 2012-03-31 10:59:47 +0000 | [diff] [blame] | 1069 | } |
Stefan Bodewig | aa9d0bc | 2011-07-23 05:03:52 +0000 | [diff] [blame] | 1070 | return 0; |
| 1071 | } |
Torsten Curdt | ca16539 | 2008-07-10 10:17:44 +0000 | [diff] [blame] | 1072 | } |
Torsten Curdt | 46ad24d | 2009-01-08 11:09:25 +0000 | [diff] [blame] | 1073 | |