1<?php 2 3///////////////////////////////////////////////////////////////// 4/// getID3() by James Heinrich <info@getid3.org> // 5// available at https://github.com/JamesHeinrich/getID3 // 6// or https://www.getid3.org // 7// or http://getid3.sourceforge.net // 8// see readme.txt for more details // 9///////////////////////////////////////////////////////////////// 10// // 11// module.misc.iso.php // 12// module for analyzing ISO files // 13// dependencies: NONE // 14// /// 15///////////////////////////////////////////////////////////////// 16 17if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers 18 exit; 19} 20 21class getid3_iso extends getid3_handler 22{ 23 /** 24 * @return bool 25 */ 26 public function Analyze() { 27 $info = &$this->getid3->info; 28 29 $info['fileformat'] = 'iso'; 30 31 for ($i = 16; $i <= 19; $i++) { 32 $this->fseek(2048 * $i); 33 $ISOheader = $this->fread(2048); 34 if (substr($ISOheader, 1, 5) == 'CD001') { 35 switch (ord($ISOheader[0])) { 36 case 1: 37 $info['iso']['primary_volume_descriptor']['offset'] = 2048 * $i; 38 $this->ParsePrimaryVolumeDescriptor($ISOheader); 39 break; 40 41 case 2: 42 $info['iso']['supplementary_volume_descriptor']['offset'] = 2048 * $i; 43 $this->ParseSupplementaryVolumeDescriptor($ISOheader); 44 break; 45 46 default: 47 // skip 48 break; 49 } 50 } 51 } 52 53 $this->ParsePathTable(); 54 55 $info['iso']['files'] = array(); 56 foreach ($info['iso']['path_table']['directories'] as $directorynum => $directorydata) { 57 $info['iso']['directories'][$directorynum] = $this->ParseDirectoryRecord($directorydata); 58 } 59 60 return true; 61 } 62 63 /** 64 * @param string $ISOheader 65 * 66 * @return bool 67 */ 68 public function ParsePrimaryVolumeDescriptor(&$ISOheader) { 69 // ISO integer values are stored *BOTH* Little-Endian AND Big-Endian format!! 70 // ie 12345 == 0x3039 is stored as $39 $30 $30 $39 in a 4-byte field 71 72 // shortcuts 73 $info = &$this->getid3->info; 74 $info['iso']['primary_volume_descriptor']['raw'] = array(); 75 $thisfile_iso_primaryVD = &$info['iso']['primary_volume_descriptor']; 76 $thisfile_iso_primaryVD_raw = &$thisfile_iso_primaryVD['raw']; 77 78 $thisfile_iso_primaryVD_raw['volume_descriptor_type'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 0, 1)); 79 $thisfile_iso_primaryVD_raw['standard_identifier'] = substr($ISOheader, 1, 5); 80 if ($thisfile_iso_primaryVD_raw['standard_identifier'] != 'CD001') { 81 $this->error('Expected "CD001" at offset ('.($thisfile_iso_primaryVD['offset'] + 1).'), found "'.$thisfile_iso_primaryVD_raw['standard_identifier'].'" instead'); 82 unset($info['fileformat']); 83 unset($info['iso']); 84 return false; 85 } 86 87 88 $thisfile_iso_primaryVD_raw['volume_descriptor_version'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 6, 1)); 89 //$thisfile_iso_primaryVD_raw['unused_1'] = substr($ISOheader, 7, 1); 90 $thisfile_iso_primaryVD_raw['system_identifier'] = substr($ISOheader, 8, 32); 91 $thisfile_iso_primaryVD_raw['volume_identifier'] = substr($ISOheader, 40, 32); 92 //$thisfile_iso_primaryVD_raw['unused_2'] = substr($ISOheader, 72, 8); 93 $thisfile_iso_primaryVD_raw['volume_space_size'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 80, 4)); 94 //$thisfile_iso_primaryVD_raw['unused_3'] = substr($ISOheader, 88, 32); 95 $thisfile_iso_primaryVD_raw['volume_set_size'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 120, 2)); 96 $thisfile_iso_primaryVD_raw['volume_sequence_number'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 124, 2)); 97 $thisfile_iso_primaryVD_raw['logical_block_size'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 128, 2)); 98 $thisfile_iso_primaryVD_raw['path_table_size'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 132, 4)); 99 $thisfile_iso_primaryVD_raw['path_table_l_location'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 140, 2)); 100 $thisfile_iso_primaryVD_raw['path_table_l_opt_location'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 144, 2)); 101 $thisfile_iso_primaryVD_raw['path_table_m_location'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 148, 2)); 102 $thisfile_iso_primaryVD_raw['path_table_m_opt_location'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 152, 2)); 103 $thisfile_iso_primaryVD_raw['root_directory_record'] = substr($ISOheader, 156, 34); 104 $thisfile_iso_primaryVD_raw['volume_set_identifier'] = substr($ISOheader, 190, 128); 105 $thisfile_iso_primaryVD_raw['publisher_identifier'] = substr($ISOheader, 318, 128); 106 $thisfile_iso_primaryVD_raw['data_preparer_identifier'] = substr($ISOheader, 446, 128); 107 $thisfile_iso_primaryVD_raw['application_identifier'] = substr($ISOheader, 574, 128); 108 $thisfile_iso_primaryVD_raw['copyright_file_identifier'] = substr($ISOheader, 702, 37); 109 $thisfile_iso_primaryVD_raw['abstract_file_identifier'] = substr($ISOheader, 739, 37); 110 $thisfile_iso_primaryVD_raw['bibliographic_file_identifier'] = substr($ISOheader, 776, 37); 111 $thisfile_iso_primaryVD_raw['volume_creation_date_time'] = substr($ISOheader, 813, 17); 112 $thisfile_iso_primaryVD_raw['volume_modification_date_time'] = substr($ISOheader, 830, 17); 113 $thisfile_iso_primaryVD_raw['volume_expiration_date_time'] = substr($ISOheader, 847, 17); 114 $thisfile_iso_primaryVD_raw['volume_effective_date_time'] = substr($ISOheader, 864, 17); 115 $thisfile_iso_primaryVD_raw['file_structure_version'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 881, 1)); 116 //$thisfile_iso_primaryVD_raw['unused_4'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 882, 1)); 117 $thisfile_iso_primaryVD_raw['application_data'] = substr($ISOheader, 883, 512); 118 //$thisfile_iso_primaryVD_raw['unused_5'] = substr($ISOheader, 1395, 653); 119 120 $thisfile_iso_primaryVD['system_identifier'] = trim($thisfile_iso_primaryVD_raw['system_identifier']); 121 $thisfile_iso_primaryVD['volume_identifier'] = trim($thisfile_iso_primaryVD_raw['volume_identifier']); 122 $thisfile_iso_primaryVD['volume_set_identifier'] = trim($thisfile_iso_primaryVD_raw['volume_set_identifier']); 123 $thisfile_iso_primaryVD['publisher_identifier'] = trim($thisfile_iso_primaryVD_raw['publisher_identifier']); 124 $thisfile_iso_primaryVD['data_preparer_identifier'] = trim($thisfile_iso_primaryVD_raw['data_preparer_identifier']); 125 $thisfile_iso_primaryVD['application_identifier'] = trim($thisfile_iso_primaryVD_raw['application_identifier']); 126 $thisfile_iso_primaryVD['copyright_file_identifier'] = trim($thisfile_iso_primaryVD_raw['copyright_file_identifier']); 127 $thisfile_iso_primaryVD['abstract_file_identifier'] = trim($thisfile_iso_primaryVD_raw['abstract_file_identifier']); 128 $thisfile_iso_primaryVD['bibliographic_file_identifier'] = trim($thisfile_iso_primaryVD_raw['bibliographic_file_identifier']); 129 $thisfile_iso_primaryVD['volume_creation_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_primaryVD_raw['volume_creation_date_time']); 130 $thisfile_iso_primaryVD['volume_modification_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_primaryVD_raw['volume_modification_date_time']); 131 $thisfile_iso_primaryVD['volume_expiration_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_primaryVD_raw['volume_expiration_date_time']); 132 $thisfile_iso_primaryVD['volume_effective_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_primaryVD_raw['volume_effective_date_time']); 133 134 if (($thisfile_iso_primaryVD_raw['volume_space_size'] * 2048) > $info['filesize']) { 135 $this->error('Volume Space Size ('.($thisfile_iso_primaryVD_raw['volume_space_size'] * 2048).' bytes) is larger than the file size ('.$info['filesize'].' bytes) (truncated file?)'); 136 } 137 138 return true; 139 } 140 141 /** 142 * @param string $ISOheader 143 * 144 * @return bool 145 */ 146 public function ParseSupplementaryVolumeDescriptor(&$ISOheader) { 147 // ISO integer values are stored Both-Endian format!! 148 // ie 12345 == 0x3039 is stored as $39 $30 $30 $39 in a 4-byte field 149 150 // shortcuts 151 $info = &$this->getid3->info; 152 $info['iso']['supplementary_volume_descriptor']['raw'] = array(); 153 $thisfile_iso_supplementaryVD = &$info['iso']['supplementary_volume_descriptor']; 154 $thisfile_iso_supplementaryVD_raw = &$thisfile_iso_supplementaryVD['raw']; 155 156 $thisfile_iso_supplementaryVD_raw['volume_descriptor_type'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 0, 1)); 157 $thisfile_iso_supplementaryVD_raw['standard_identifier'] = substr($ISOheader, 1, 5); 158 if ($thisfile_iso_supplementaryVD_raw['standard_identifier'] != 'CD001') { 159 $this->error('Expected "CD001" at offset ('.($thisfile_iso_supplementaryVD['offset'] + 1).'), found "'.$thisfile_iso_supplementaryVD_raw['standard_identifier'].'" instead'); 160 unset($info['fileformat']); 161 unset($info['iso']); 162 return false; 163 } 164 165 $thisfile_iso_supplementaryVD_raw['volume_descriptor_version'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 6, 1)); 166 //$thisfile_iso_supplementaryVD_raw['unused_1'] = substr($ISOheader, 7, 1); 167 $thisfile_iso_supplementaryVD_raw['system_identifier'] = substr($ISOheader, 8, 32); 168 $thisfile_iso_supplementaryVD_raw['volume_identifier'] = substr($ISOheader, 40, 32); 169 //$thisfile_iso_supplementaryVD_raw['unused_2'] = substr($ISOheader, 72, 8); 170 $thisfile_iso_supplementaryVD_raw['volume_space_size'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 80, 4)); 171 if ($thisfile_iso_supplementaryVD_raw['volume_space_size'] == 0) { 172 // Supplementary Volume Descriptor not used 173 //unset($thisfile_iso_supplementaryVD); 174 //return false; 175 } 176 177 //$thisfile_iso_supplementaryVD_raw['unused_3'] = substr($ISOheader, 88, 32); 178 $thisfile_iso_supplementaryVD_raw['volume_set_size'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 120, 2)); 179 $thisfile_iso_supplementaryVD_raw['volume_sequence_number'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 124, 2)); 180 $thisfile_iso_supplementaryVD_raw['logical_block_size'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 128, 2)); 181 $thisfile_iso_supplementaryVD_raw['path_table_size'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 132, 4)); 182 $thisfile_iso_supplementaryVD_raw['path_table_l_location'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 140, 2)); 183 $thisfile_iso_supplementaryVD_raw['path_table_l_opt_location'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 144, 2)); 184 $thisfile_iso_supplementaryVD_raw['path_table_m_location'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 148, 2)); 185 $thisfile_iso_supplementaryVD_raw['path_table_m_opt_location'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 152, 2)); 186 $thisfile_iso_supplementaryVD_raw['root_directory_record'] = substr($ISOheader, 156, 34); 187 $thisfile_iso_supplementaryVD_raw['volume_set_identifier'] = substr($ISOheader, 190, 128); 188 $thisfile_iso_supplementaryVD_raw['publisher_identifier'] = substr($ISOheader, 318, 128); 189 $thisfile_iso_supplementaryVD_raw['data_preparer_identifier'] = substr($ISOheader, 446, 128); 190 $thisfile_iso_supplementaryVD_raw['application_identifier'] = substr($ISOheader, 574, 128); 191 $thisfile_iso_supplementaryVD_raw['copyright_file_identifier'] = substr($ISOheader, 702, 37); 192 $thisfile_iso_supplementaryVD_raw['abstract_file_identifier'] = substr($ISOheader, 739, 37); 193 $thisfile_iso_supplementaryVD_raw['bibliographic_file_identifier'] = substr($ISOheader, 776, 37); 194 $thisfile_iso_supplementaryVD_raw['volume_creation_date_time'] = substr($ISOheader, 813, 17); 195 $thisfile_iso_supplementaryVD_raw['volume_modification_date_time'] = substr($ISOheader, 830, 17); 196 $thisfile_iso_supplementaryVD_raw['volume_expiration_date_time'] = substr($ISOheader, 847, 17); 197 $thisfile_iso_supplementaryVD_raw['volume_effective_date_time'] = substr($ISOheader, 864, 17); 198 $thisfile_iso_supplementaryVD_raw['file_structure_version'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 881, 1)); 199 //$thisfile_iso_supplementaryVD_raw['unused_4'] = getid3_lib::LittleEndian2Int(substr($ISOheader, 882, 1)); 200 $thisfile_iso_supplementaryVD_raw['application_data'] = substr($ISOheader, 883, 512); 201 //$thisfile_iso_supplementaryVD_raw['unused_5'] = substr($ISOheader, 1395, 653); 202 203 $thisfile_iso_supplementaryVD['system_identifier'] = trim($thisfile_iso_supplementaryVD_raw['system_identifier']); 204 $thisfile_iso_supplementaryVD['volume_identifier'] = trim($thisfile_iso_supplementaryVD_raw['volume_identifier']); 205 $thisfile_iso_supplementaryVD['volume_set_identifier'] = trim($thisfile_iso_supplementaryVD_raw['volume_set_identifier']); 206 $thisfile_iso_supplementaryVD['publisher_identifier'] = trim($thisfile_iso_supplementaryVD_raw['publisher_identifier']); 207 $thisfile_iso_supplementaryVD['data_preparer_identifier'] = trim($thisfile_iso_supplementaryVD_raw['data_preparer_identifier']); 208 $thisfile_iso_supplementaryVD['application_identifier'] = trim($thisfile_iso_supplementaryVD_raw['application_identifier']); 209 $thisfile_iso_supplementaryVD['copyright_file_identifier'] = trim($thisfile_iso_supplementaryVD_raw['copyright_file_identifier']); 210 $thisfile_iso_supplementaryVD['abstract_file_identifier'] = trim($thisfile_iso_supplementaryVD_raw['abstract_file_identifier']); 211 $thisfile_iso_supplementaryVD['bibliographic_file_identifier'] = trim($thisfile_iso_supplementaryVD_raw['bibliographic_file_identifier']); 212 $thisfile_iso_supplementaryVD['volume_creation_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_supplementaryVD_raw['volume_creation_date_time']); 213 $thisfile_iso_supplementaryVD['volume_modification_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_supplementaryVD_raw['volume_modification_date_time']); 214 $thisfile_iso_supplementaryVD['volume_expiration_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_supplementaryVD_raw['volume_expiration_date_time']); 215 $thisfile_iso_supplementaryVD['volume_effective_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_supplementaryVD_raw['volume_effective_date_time']); 216 217 if (($thisfile_iso_supplementaryVD_raw['volume_space_size'] * $thisfile_iso_supplementaryVD_raw['logical_block_size']) > $info['filesize']) { 218 $this->error('Volume Space Size ('.($thisfile_iso_supplementaryVD_raw['volume_space_size'] * $thisfile_iso_supplementaryVD_raw['logical_block_size']).' bytes) is larger than the file size ('.$info['filesize'].' bytes) (truncated file?)'); 219 } 220 221 return true; 222 } 223 224 /** 225 * @return bool 226 */ 227 public function ParsePathTable() { 228 $info = &$this->getid3->info; 229 if (!isset($info['iso']['supplementary_volume_descriptor']['raw']['path_table_l_location']) && !isset($info['iso']['primary_volume_descriptor']['raw']['path_table_l_location'])) { 230 return false; 231 } 232 if (isset($info['iso']['supplementary_volume_descriptor']['raw']['path_table_l_location'])) { 233 $PathTableLocation = $info['iso']['supplementary_volume_descriptor']['raw']['path_table_l_location']; 234 $PathTableSize = $info['iso']['supplementary_volume_descriptor']['raw']['path_table_size']; 235 $TextEncoding = 'UTF-16BE'; // Big-Endian Unicode 236 } else { 237 $PathTableLocation = $info['iso']['primary_volume_descriptor']['raw']['path_table_l_location']; 238 $PathTableSize = $info['iso']['primary_volume_descriptor']['raw']['path_table_size']; 239 $TextEncoding = 'ISO-8859-1'; // Latin-1 240 } 241 242 if (($PathTableLocation * 2048) > $info['filesize']) { 243 $this->error('Path Table Location specifies an offset ('.($PathTableLocation * 2048).') beyond the end-of-file ('.$info['filesize'].')'); 244 return false; 245 } 246 247 $info['iso']['path_table']['offset'] = $PathTableLocation * 2048; 248 $this->fseek($info['iso']['path_table']['offset']); 249 $info['iso']['path_table']['raw'] = $this->fread($PathTableSize); 250 251 $offset = 0; 252 $pathcounter = 1; 253 while ($offset < $PathTableSize) { 254 // shortcut 255 $info['iso']['path_table']['directories'][$pathcounter] = array(); 256 $thisfile_iso_pathtable_directories_current = &$info['iso']['path_table']['directories'][$pathcounter]; 257 258 $thisfile_iso_pathtable_directories_current['length'] = getid3_lib::LittleEndian2Int(substr($info['iso']['path_table']['raw'], $offset, 1)); 259 $offset += 1; 260 $thisfile_iso_pathtable_directories_current['extended_length'] = getid3_lib::LittleEndian2Int(substr($info['iso']['path_table']['raw'], $offset, 1)); 261 $offset += 1; 262 $thisfile_iso_pathtable_directories_current['location_logical'] = getid3_lib::LittleEndian2Int(substr($info['iso']['path_table']['raw'], $offset, 4)); 263 $offset += 4; 264 $thisfile_iso_pathtable_directories_current['parent_directory'] = getid3_lib::LittleEndian2Int(substr($info['iso']['path_table']['raw'], $offset, 2)); 265 $offset += 2; 266 $thisfile_iso_pathtable_directories_current['name'] = substr($info['iso']['path_table']['raw'], $offset, $thisfile_iso_pathtable_directories_current['length']); 267 $offset += $thisfile_iso_pathtable_directories_current['length'] + ($thisfile_iso_pathtable_directories_current['length'] % 2); 268 269 $thisfile_iso_pathtable_directories_current['name_ascii'] = getid3_lib::iconv_fallback($TextEncoding, $info['encoding'], $thisfile_iso_pathtable_directories_current['name']); 270 271 $thisfile_iso_pathtable_directories_current['location_bytes'] = $thisfile_iso_pathtable_directories_current['location_logical'] * 2048; 272 if ($pathcounter == 1) { 273 $thisfile_iso_pathtable_directories_current['full_path'] = '/'; 274 } else { 275 $thisfile_iso_pathtable_directories_current['full_path'] = $info['iso']['path_table']['directories'][$thisfile_iso_pathtable_directories_current['parent_directory']]['full_path'].$thisfile_iso_pathtable_directories_current['name_ascii'].'/'; 276 } 277 $FullPathArray[] = $thisfile_iso_pathtable_directories_current['full_path']; 278 279 $pathcounter++; 280 } 281 282 return true; 283 } 284 285 /** 286 * @param array $directorydata 287 * 288 * @return array 289 */ 290 public function ParseDirectoryRecord($directorydata) { 291 $info = &$this->getid3->info; 292 if (isset($info['iso']['supplementary_volume_descriptor'])) { 293 $TextEncoding = 'UTF-16BE'; // Big-Endian Unicode 294 } else { 295 $TextEncoding = 'ISO-8859-1'; // Latin-1 296 } 297 298 $this->fseek($directorydata['location_bytes']); 299 $DirectoryRecordData = $this->fread(1); 300 $DirectoryRecord = array(); 301 302 while (ord($DirectoryRecordData[0]) > 33) { 303 304 $DirectoryRecordData .= $this->fread(ord($DirectoryRecordData[0]) - 1); 305 306 $ThisDirectoryRecord = array(); 307 308 $ThisDirectoryRecord['raw']['length'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 0, 1)); 309 $ThisDirectoryRecord['raw']['extended_attribute_length'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 1, 1)); 310 $ThisDirectoryRecord['raw']['offset_logical'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 2, 4)); 311 $ThisDirectoryRecord['raw']['filesize'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 10, 4)); 312 $ThisDirectoryRecord['raw']['recording_date_time'] = substr($DirectoryRecordData, 18, 7); 313 $ThisDirectoryRecord['raw']['file_flags'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 25, 1)); 314 $ThisDirectoryRecord['raw']['file_unit_size'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 26, 1)); 315 $ThisDirectoryRecord['raw']['interleave_gap_size'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 27, 1)); 316 $ThisDirectoryRecord['raw']['volume_sequence_number'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 28, 2)); 317 $ThisDirectoryRecord['raw']['file_identifier_length'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 32, 1)); 318 $ThisDirectoryRecord['raw']['file_identifier'] = substr($DirectoryRecordData, 33, $ThisDirectoryRecord['raw']['file_identifier_length']); 319 320 $ThisDirectoryRecord['file_identifier_ascii'] = getid3_lib::iconv_fallback($TextEncoding, $info['encoding'], $ThisDirectoryRecord['raw']['file_identifier']); 321 322 $ThisDirectoryRecord['filesize'] = $ThisDirectoryRecord['raw']['filesize']; 323 $ThisDirectoryRecord['offset_bytes'] = $ThisDirectoryRecord['raw']['offset_logical'] * 2048; 324 $ThisDirectoryRecord['file_flags']['hidden'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x01); 325 $ThisDirectoryRecord['file_flags']['directory'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x02); 326 $ThisDirectoryRecord['file_flags']['associated'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x04); 327 $ThisDirectoryRecord['file_flags']['extended'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x08); 328 $ThisDirectoryRecord['file_flags']['permissions'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x10); 329 $ThisDirectoryRecord['file_flags']['multiple'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x80); 330 $ThisDirectoryRecord['recording_timestamp'] = $this->ISOtime2UNIXtime($ThisDirectoryRecord['raw']['recording_date_time']); 331 332 if ($ThisDirectoryRecord['file_flags']['directory']) { 333 $ThisDirectoryRecord['filename'] = $directorydata['full_path']; 334 } else { 335 $ThisDirectoryRecord['filename'] = $directorydata['full_path'].$this->ISOstripFilenameVersion($ThisDirectoryRecord['file_identifier_ascii']); 336 $info['iso']['files'] = getid3_lib::array_merge_clobber($info['iso']['files'], getid3_lib::CreateDeepArray($ThisDirectoryRecord['filename'], '/', $ThisDirectoryRecord['filesize'])); 337 } 338 339 $DirectoryRecord[] = $ThisDirectoryRecord; 340 $DirectoryRecordData = $this->fread(1); 341 } 342 343 return $DirectoryRecord; 344 } 345 346 /** 347 * @param string $ISOfilename 348 * 349 * @return string 350 */ 351 public function ISOstripFilenameVersion($ISOfilename) { 352 // convert 'filename.ext;1' to 'filename.ext' 353 if (!strstr($ISOfilename, ';')) { 354 return $ISOfilename; 355 } else { 356 return substr($ISOfilename, 0, strpos($ISOfilename, ';')); 357 } 358 } 359 360 /** 361 * @param string $ISOtime 362 * 363 * @return int|false 364 */ 365 public function ISOtimeText2UNIXtime($ISOtime) { 366 367 $UNIXyear = (int) substr($ISOtime, 0, 4); 368 $UNIXmonth = (int) substr($ISOtime, 4, 2); 369 $UNIXday = (int) substr($ISOtime, 6, 2); 370 $UNIXhour = (int) substr($ISOtime, 8, 2); 371 $UNIXminute = (int) substr($ISOtime, 10, 2); 372 $UNIXsecond = (int) substr($ISOtime, 12, 2); 373 374 if (!$UNIXyear) { 375 return false; 376 } 377 return gmmktime($UNIXhour, $UNIXminute, $UNIXsecond, $UNIXmonth, $UNIXday, $UNIXyear); 378 } 379 380 /** 381 * @param string $ISOtime 382 * 383 * @return int 384 */ 385 public function ISOtime2UNIXtime($ISOtime) { 386 // Represented by seven bytes: 387 // 1: Number of years since 1900 388 // 2: Month of the year from 1 to 12 389 // 3: Day of the Month from 1 to 31 390 // 4: Hour of the day from 0 to 23 391 // 5: Minute of the hour from 0 to 59 392 // 6: second of the minute from 0 to 59 393 // 7: Offset from Greenwich Mean Time in number of 15 minute intervals from -48 (West) to +52 (East) 394 395 $UNIXyear = ord($ISOtime[0]) + 1900; 396 $UNIXmonth = ord($ISOtime[1]); 397 $UNIXday = ord($ISOtime[2]); 398 $UNIXhour = ord($ISOtime[3]); 399 $UNIXminute = ord($ISOtime[4]); 400 $UNIXsecond = ord($ISOtime[5]); 401 $GMToffset = $this->TwosCompliment2Decimal(ord($ISOtime[5])); 402 403 return gmmktime($UNIXhour, $UNIXminute, $UNIXsecond, $UNIXmonth, $UNIXday, $UNIXyear); 404 } 405 406 /** 407 * @param int $BinaryValue 408 * 409 * @return int 410 */ 411 public function TwosCompliment2Decimal($BinaryValue) { 412 // http://sandbox.mc.edu/~bennet/cs110/tc/tctod.html 413 // First check if the number is negative or positive by looking at the sign bit. 414 // If it is positive, simply convert it to decimal. 415 // If it is negative, make it positive by inverting the bits and adding one. 416 // Then, convert the result to decimal. 417 // The negative of this number is the value of the original binary. 418 419 if ($BinaryValue & 0x80) { 420 421 // negative number 422 return (0 - ((~$BinaryValue & 0xFF) + 1)); 423 } else { 424 // positive number 425 return $BinaryValue; 426 } 427 } 428 429 430} 431