ILIAS  release_5-2 Revision v5.2.25-18-g3f80b828510
Iso.php
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1<?php
2
3namespace GetId3\Module\Misc;
4
5use GetId3\Handler\BaseHandler;
6use GetId3\Lib\Helper;
7
10// available at http://getid3.sourceforge.net //
11// or http://www.getid3.org //
13// See readme.txt for more details //
15// //
16// module.misc.iso.php //
17// module for analyzing ISO files //
18// dependencies: NONE //
19// ///
21
29class Iso extends BaseHandler
30{
31
36 public function analyze()
37 {
38 $info = &$this->getid3->info;
39
40 $info['fileformat'] = 'iso';
41
42 for ($i = 16; $i <= 19; $i++) {
43 fseek($this->getid3->fp, 2048 * $i, SEEK_SET);
44 $ISOheader = fread($this->getid3->fp, 2048);
45 if (substr($ISOheader, 1, 5) == 'CD001') {
46 switch (ord($ISOheader{0})) {
47 case 1:
48 $info['iso']['primary_volume_descriptor']['offset'] = 2048 * $i;
49 $this->ParsePrimaryVolumeDescriptor($ISOheader);
50 break;
51
52 case 2:
53 $info['iso']['supplementary_volume_descriptor']['offset'] = 2048 * $i;
54 $this->ParseSupplementaryVolumeDescriptor($ISOheader);
55 break;
56
57 default:
58 // skip
59 break;
60 }
61 }
62 }
63
64 $this->ParsePathTable();
65
66 $info['iso']['files'] = array();
67 foreach ($info['iso']['path_table']['directories'] as $directorynum => $directorydata) {
68 $info['iso']['directories'][$directorynum] = $this->ParseDirectoryRecord($directorydata);
69 }
70
71 return true;
72 }
73
79 public function ParsePrimaryVolumeDescriptor(&$ISOheader)
80 {
81 // ISO integer values are stored *BOTH* Little-Endian AND Big-Endian format!!
82 // ie 12345 == 0x3039 is stored as $39 $30 $30 $39 in a 4-byte field
83
84 // shortcuts
85 $info = &$this->getid3->info;
86 $info['iso']['primary_volume_descriptor']['raw'] = array();
87 $thisfile_iso_primaryVD = &$info['iso']['primary_volume_descriptor'];
88 $thisfile_iso_primaryVD_raw = &$thisfile_iso_primaryVD['raw'];
89
90 $thisfile_iso_primaryVD_raw['volume_descriptor_type'] = Helper::LittleEndian2Int(substr($ISOheader, 0, 1));
91 $thisfile_iso_primaryVD_raw['standard_identifier'] = substr($ISOheader, 1, 5);
92 if ($thisfile_iso_primaryVD_raw['standard_identifier'] != 'CD001') {
93 $info['error'][] = 'Expected "CD001" at offset ('.($thisfile_iso_primaryVD['offset'] + 1).'), found "'.$thisfile_iso_primaryVD_raw['standard_identifier'].'" instead';
94 unset($info['fileformat']);
95 unset($info['iso']);
96
97 return false;
98 }
99
100 $thisfile_iso_primaryVD_raw['volume_descriptor_version'] = Helper::LittleEndian2Int(substr($ISOheader, 6, 1));
101 //$thisfile_iso_primaryVD_raw['unused_1'] = substr($ISOheader, 7, 1);
102 $thisfile_iso_primaryVD_raw['system_identifier'] = substr($ISOheader, 8, 32);
103 $thisfile_iso_primaryVD_raw['volume_identifier'] = substr($ISOheader, 40, 32);
104 //$thisfile_iso_primaryVD_raw['unused_2'] = substr($ISOheader, 72, 8);
105 $thisfile_iso_primaryVD_raw['volume_space_size'] = Helper::LittleEndian2Int(substr($ISOheader, 80, 4));
106 //$thisfile_iso_primaryVD_raw['unused_3'] = substr($ISOheader, 88, 32);
107 $thisfile_iso_primaryVD_raw['volume_set_size'] = Helper::LittleEndian2Int(substr($ISOheader, 120, 2));
108 $thisfile_iso_primaryVD_raw['volume_sequence_number'] = Helper::LittleEndian2Int(substr($ISOheader, 124, 2));
109 $thisfile_iso_primaryVD_raw['logical_block_size'] = Helper::LittleEndian2Int(substr($ISOheader, 128, 2));
110 $thisfile_iso_primaryVD_raw['path_table_size'] = Helper::LittleEndian2Int(substr($ISOheader, 132, 4));
111 $thisfile_iso_primaryVD_raw['path_table_l_location'] = Helper::LittleEndian2Int(substr($ISOheader, 140, 2));
112 $thisfile_iso_primaryVD_raw['path_table_l_opt_location'] = Helper::LittleEndian2Int(substr($ISOheader, 144, 2));
113 $thisfile_iso_primaryVD_raw['path_table_m_location'] = Helper::LittleEndian2Int(substr($ISOheader, 148, 2));
114 $thisfile_iso_primaryVD_raw['path_table_m_opt_location'] = Helper::LittleEndian2Int(substr($ISOheader, 152, 2));
115 $thisfile_iso_primaryVD_raw['root_directory_record'] = substr($ISOheader, 156, 34);
116 $thisfile_iso_primaryVD_raw['volume_set_identifier'] = substr($ISOheader, 190, 128);
117 $thisfile_iso_primaryVD_raw['publisher_identifier'] = substr($ISOheader, 318, 128);
118 $thisfile_iso_primaryVD_raw['data_preparer_identifier'] = substr($ISOheader, 446, 128);
119 $thisfile_iso_primaryVD_raw['application_identifier'] = substr($ISOheader, 574, 128);
120 $thisfile_iso_primaryVD_raw['copyright_file_identifier'] = substr($ISOheader, 702, 37);
121 $thisfile_iso_primaryVD_raw['abstract_file_identifier'] = substr($ISOheader, 739, 37);
122 $thisfile_iso_primaryVD_raw['bibliographic_file_identifier'] = substr($ISOheader, 776, 37);
123 $thisfile_iso_primaryVD_raw['volume_creation_date_time'] = substr($ISOheader, 813, 17);
124 $thisfile_iso_primaryVD_raw['volume_modification_date_time'] = substr($ISOheader, 830, 17);
125 $thisfile_iso_primaryVD_raw['volume_expiration_date_time'] = substr($ISOheader, 847, 17);
126 $thisfile_iso_primaryVD_raw['volume_effective_date_time'] = substr($ISOheader, 864, 17);
127 $thisfile_iso_primaryVD_raw['file_structure_version'] = Helper::LittleEndian2Int(substr($ISOheader, 881, 1));
128 //$thisfile_iso_primaryVD_raw['unused_4'] = GetId3_lib::LittleEndian2Int(substr($ISOheader, 882, 1));
129 $thisfile_iso_primaryVD_raw['application_data'] = substr($ISOheader, 883, 512);
130 //$thisfile_iso_primaryVD_raw['unused_5'] = substr($ISOheader, 1395, 653);
131
132 $thisfile_iso_primaryVD['system_identifier'] = trim($thisfile_iso_primaryVD_raw['system_identifier']);
133 $thisfile_iso_primaryVD['volume_identifier'] = trim($thisfile_iso_primaryVD_raw['volume_identifier']);
134 $thisfile_iso_primaryVD['volume_set_identifier'] = trim($thisfile_iso_primaryVD_raw['volume_set_identifier']);
135 $thisfile_iso_primaryVD['publisher_identifier'] = trim($thisfile_iso_primaryVD_raw['publisher_identifier']);
136 $thisfile_iso_primaryVD['data_preparer_identifier'] = trim($thisfile_iso_primaryVD_raw['data_preparer_identifier']);
137 $thisfile_iso_primaryVD['application_identifier'] = trim($thisfile_iso_primaryVD_raw['application_identifier']);
138 $thisfile_iso_primaryVD['copyright_file_identifier'] = trim($thisfile_iso_primaryVD_raw['copyright_file_identifier']);
139 $thisfile_iso_primaryVD['abstract_file_identifier'] = trim($thisfile_iso_primaryVD_raw['abstract_file_identifier']);
140 $thisfile_iso_primaryVD['bibliographic_file_identifier'] = trim($thisfile_iso_primaryVD_raw['bibliographic_file_identifier']);
141 $thisfile_iso_primaryVD['volume_creation_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_primaryVD_raw['volume_creation_date_time']);
142 $thisfile_iso_primaryVD['volume_modification_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_primaryVD_raw['volume_modification_date_time']);
143 $thisfile_iso_primaryVD['volume_expiration_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_primaryVD_raw['volume_expiration_date_time']);
144 $thisfile_iso_primaryVD['volume_effective_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_primaryVD_raw['volume_effective_date_time']);
145
146 if (($thisfile_iso_primaryVD_raw['volume_space_size'] * 2048) > $info['filesize']) {
147 $info['error'][] = 'Volume Space Size ('.($thisfile_iso_primaryVD_raw['volume_space_size'] * 2048).' bytes) is larger than the file size ('.$info['filesize'].' bytes) (truncated file?)';
148 }
149
150 return true;
151 }
152
158 public function ParseSupplementaryVolumeDescriptor(&$ISOheader)
159 {
160 // ISO integer values are stored Both-Endian format!!
161 // ie 12345 == 0x3039 is stored as $39 $30 $30 $39 in a 4-byte field
162
163 // shortcuts
164 $info = &$this->getid3->info;
165 $info['iso']['supplementary_volume_descriptor']['raw'] = array();
166 $thisfile_iso_supplementaryVD = &$info['iso']['supplementary_volume_descriptor'];
167 $thisfile_iso_supplementaryVD_raw = &$thisfile_iso_supplementaryVD['raw'];
168
169 $thisfile_iso_supplementaryVD_raw['volume_descriptor_type'] = Helper::LittleEndian2Int(substr($ISOheader, 0, 1));
170 $thisfile_iso_supplementaryVD_raw['standard_identifier'] = substr($ISOheader, 1, 5);
171 if ($thisfile_iso_supplementaryVD_raw['standard_identifier'] != 'CD001') {
172 $info['error'][] = 'Expected "CD001" at offset ('.($thisfile_iso_supplementaryVD['offset'] + 1).'), found "'.$thisfile_iso_supplementaryVD_raw['standard_identifier'].'" instead';
173 unset($info['fileformat']);
174 unset($info['iso']);
175
176 return false;
177 }
178
179 $thisfile_iso_supplementaryVD_raw['volume_descriptor_version'] = Helper::LittleEndian2Int(substr($ISOheader, 6, 1));
180 //$thisfile_iso_supplementaryVD_raw['unused_1'] = substr($ISOheader, 7, 1);
181 $thisfile_iso_supplementaryVD_raw['system_identifier'] = substr($ISOheader, 8, 32);
182 $thisfile_iso_supplementaryVD_raw['volume_identifier'] = substr($ISOheader, 40, 32);
183 //$thisfile_iso_supplementaryVD_raw['unused_2'] = substr($ISOheader, 72, 8);
184 $thisfile_iso_supplementaryVD_raw['volume_space_size'] = Helper::LittleEndian2Int(substr($ISOheader, 80, 4));
185 if ($thisfile_iso_supplementaryVD_raw['volume_space_size'] == 0) {
186 // Supplementary Volume Descriptor not used
187 //unset($thisfile_iso_supplementaryVD);
188 //return false;
189 }
190
191 //$thisfile_iso_supplementaryVD_raw['unused_3'] = substr($ISOheader, 88, 32);
192 $thisfile_iso_supplementaryVD_raw['volume_set_size'] = Helper::LittleEndian2Int(substr($ISOheader, 120, 2));
193 $thisfile_iso_supplementaryVD_raw['volume_sequence_number'] = Helper::LittleEndian2Int(substr($ISOheader, 124, 2));
194 $thisfile_iso_supplementaryVD_raw['logical_block_size'] = Helper::LittleEndian2Int(substr($ISOheader, 128, 2));
195 $thisfile_iso_supplementaryVD_raw['path_table_size'] = Helper::LittleEndian2Int(substr($ISOheader, 132, 4));
196 $thisfile_iso_supplementaryVD_raw['path_table_l_location'] = Helper::LittleEndian2Int(substr($ISOheader, 140, 2));
197 $thisfile_iso_supplementaryVD_raw['path_table_l_opt_location'] = Helper::LittleEndian2Int(substr($ISOheader, 144, 2));
198 $thisfile_iso_supplementaryVD_raw['path_table_m_location'] = Helper::LittleEndian2Int(substr($ISOheader, 148, 2));
199 $thisfile_iso_supplementaryVD_raw['path_table_m_opt_location'] = Helper::LittleEndian2Int(substr($ISOheader, 152, 2));
200 $thisfile_iso_supplementaryVD_raw['root_directory_record'] = substr($ISOheader, 156, 34);
201 $thisfile_iso_supplementaryVD_raw['volume_set_identifier'] = substr($ISOheader, 190, 128);
202 $thisfile_iso_supplementaryVD_raw['publisher_identifier'] = substr($ISOheader, 318, 128);
203 $thisfile_iso_supplementaryVD_raw['data_preparer_identifier'] = substr($ISOheader, 446, 128);
204 $thisfile_iso_supplementaryVD_raw['application_identifier'] = substr($ISOheader, 574, 128);
205 $thisfile_iso_supplementaryVD_raw['copyright_file_identifier'] = substr($ISOheader, 702, 37);
206 $thisfile_iso_supplementaryVD_raw['abstract_file_identifier'] = substr($ISOheader, 739, 37);
207 $thisfile_iso_supplementaryVD_raw['bibliographic_file_identifier'] = substr($ISOheader, 776, 37);
208 $thisfile_iso_supplementaryVD_raw['volume_creation_date_time'] = substr($ISOheader, 813, 17);
209 $thisfile_iso_supplementaryVD_raw['volume_modification_date_time'] = substr($ISOheader, 830, 17);
210 $thisfile_iso_supplementaryVD_raw['volume_expiration_date_time'] = substr($ISOheader, 847, 17);
211 $thisfile_iso_supplementaryVD_raw['volume_effective_date_time'] = substr($ISOheader, 864, 17);
212 $thisfile_iso_supplementaryVD_raw['file_structure_version'] = Helper::LittleEndian2Int(substr($ISOheader, 881, 1));
213 //$thisfile_iso_supplementaryVD_raw['unused_4'] = GetId3_lib::LittleEndian2Int(substr($ISOheader, 882, 1));
214 $thisfile_iso_supplementaryVD_raw['application_data'] = substr($ISOheader, 883, 512);
215 //$thisfile_iso_supplementaryVD_raw['unused_5'] = substr($ISOheader, 1395, 653);
216
217 $thisfile_iso_supplementaryVD['system_identifier'] = trim($thisfile_iso_supplementaryVD_raw['system_identifier']);
218 $thisfile_iso_supplementaryVD['volume_identifier'] = trim($thisfile_iso_supplementaryVD_raw['volume_identifier']);
219 $thisfile_iso_supplementaryVD['volume_set_identifier'] = trim($thisfile_iso_supplementaryVD_raw['volume_set_identifier']);
220 $thisfile_iso_supplementaryVD['publisher_identifier'] = trim($thisfile_iso_supplementaryVD_raw['publisher_identifier']);
221 $thisfile_iso_supplementaryVD['data_preparer_identifier'] = trim($thisfile_iso_supplementaryVD_raw['data_preparer_identifier']);
222 $thisfile_iso_supplementaryVD['application_identifier'] = trim($thisfile_iso_supplementaryVD_raw['application_identifier']);
223 $thisfile_iso_supplementaryVD['copyright_file_identifier'] = trim($thisfile_iso_supplementaryVD_raw['copyright_file_identifier']);
224 $thisfile_iso_supplementaryVD['abstract_file_identifier'] = trim($thisfile_iso_supplementaryVD_raw['abstract_file_identifier']);
225 $thisfile_iso_supplementaryVD['bibliographic_file_identifier'] = trim($thisfile_iso_supplementaryVD_raw['bibliographic_file_identifier']);
226 $thisfile_iso_supplementaryVD['volume_creation_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_supplementaryVD_raw['volume_creation_date_time']);
227 $thisfile_iso_supplementaryVD['volume_modification_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_supplementaryVD_raw['volume_modification_date_time']);
228 $thisfile_iso_supplementaryVD['volume_expiration_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_supplementaryVD_raw['volume_expiration_date_time']);
229 $thisfile_iso_supplementaryVD['volume_effective_date_time'] = $this->ISOtimeText2UNIXtime($thisfile_iso_supplementaryVD_raw['volume_effective_date_time']);
230
231 if (($thisfile_iso_supplementaryVD_raw['volume_space_size'] * $thisfile_iso_supplementaryVD_raw['logical_block_size']) > $info['filesize']) {
232 $info['error'][] = 'Volume Space Size ('.($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?)';
233 }
234
235 return true;
236 }
237
242 public function ParsePathTable()
243 {
244 $info = &$this->getid3->info;
245 if (!isset($info['iso']['supplementary_volume_descriptor']['raw']['path_table_l_location']) && !isset($info['iso']['primary_volume_descriptor']['raw']['path_table_l_location'])) {
246 return false;
247 }
248 if (isset($info['iso']['supplementary_volume_descriptor']['raw']['path_table_l_location'])) {
249 $PathTableLocation = $info['iso']['supplementary_volume_descriptor']['raw']['path_table_l_location'];
250 $PathTableSize = $info['iso']['supplementary_volume_descriptor']['raw']['path_table_size'];
251 $TextEncoding = 'UTF-16BE'; // Big-Endian Unicode
252 } else {
253 $PathTableLocation = $info['iso']['primary_volume_descriptor']['raw']['path_table_l_location'];
254 $PathTableSize = $info['iso']['primary_volume_descriptor']['raw']['path_table_size'];
255 $TextEncoding = 'ISO-8859-1'; // Latin-1
256 }
257
258 if (($PathTableLocation * 2048) > $info['filesize']) {
259 $info['error'][] = 'Path Table Location specifies an offset ('.($PathTableLocation * 2048).') beyond the end-of-file ('.$info['filesize'].')';
260
261 return false;
262 }
263
264 $info['iso']['path_table']['offset'] = $PathTableLocation * 2048;
265 fseek($this->getid3->fp, $info['iso']['path_table']['offset'], SEEK_SET);
266 $info['iso']['path_table']['raw'] = fread($this->getid3->fp, $PathTableSize);
267
268 $offset = 0;
269 $pathcounter = 1;
270 while ($offset < $PathTableSize) {
271 // shortcut
272 $info['iso']['path_table']['directories'][$pathcounter] = array();
273 $thisfile_iso_pathtable_directories_current = &$info['iso']['path_table']['directories'][$pathcounter];
274
275 $thisfile_iso_pathtable_directories_current['length'] = Helper::LittleEndian2Int(substr($info['iso']['path_table']['raw'], $offset, 1));
276 $offset += 1;
277 $thisfile_iso_pathtable_directories_current['extended_length'] = Helper::LittleEndian2Int(substr($info['iso']['path_table']['raw'], $offset, 1));
278 $offset += 1;
279 $thisfile_iso_pathtable_directories_current['location_logical'] = Helper::LittleEndian2Int(substr($info['iso']['path_table']['raw'], $offset, 4));
280 $offset += 4;
281 $thisfile_iso_pathtable_directories_current['parent_directory'] = Helper::LittleEndian2Int(substr($info['iso']['path_table']['raw'], $offset, 2));
282 $offset += 2;
283 $thisfile_iso_pathtable_directories_current['name'] = substr($info['iso']['path_table']['raw'], $offset, $thisfile_iso_pathtable_directories_current['length']);
284 $offset += $thisfile_iso_pathtable_directories_current['length'] + ($thisfile_iso_pathtable_directories_current['length'] % 2);
285
286 $thisfile_iso_pathtable_directories_current['name_ascii'] = Helper::iconv_fallback($TextEncoding, $info['encoding'], $thisfile_iso_pathtable_directories_current['name']);
287
288 $thisfile_iso_pathtable_directories_current['location_bytes'] = $thisfile_iso_pathtable_directories_current['location_logical'] * 2048;
289 if ($pathcounter == 1) {
290 $thisfile_iso_pathtable_directories_current['full_path'] = '/';
291 } else {
292 $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'].'/';
293 }
294 $FullPathArray[] = $thisfile_iso_pathtable_directories_current['full_path'];
295
296 $pathcounter++;
297 }
298
299 return true;
300 }
301
307 public function ParseDirectoryRecord($directorydata)
308 {
309 $info = &$this->getid3->info;
310 if (isset($info['iso']['supplementary_volume_descriptor'])) {
311 $TextEncoding = 'UTF-16BE'; // Big-Endian Unicode
312 } else {
313 $TextEncoding = 'ISO-8859-1'; // Latin-1
314 }
315
316 fseek($this->getid3->fp, $directorydata['location_bytes'], SEEK_SET);
317 $DirectoryRecordData = fread($this->getid3->fp, 1);
318
319 while (ord($DirectoryRecordData{0}) > 33) {
320
321 $DirectoryRecordData .= fread($this->getid3->fp, ord($DirectoryRecordData{0}) - 1);
322
323 $ThisDirectoryRecord['raw']['length'] = Helper::LittleEndian2Int(substr($DirectoryRecordData, 0, 1));
324 $ThisDirectoryRecord['raw']['extended_attribute_length'] = Helper::LittleEndian2Int(substr($DirectoryRecordData, 1, 1));
325 $ThisDirectoryRecord['raw']['offset_logical'] = Helper::LittleEndian2Int(substr($DirectoryRecordData, 2, 4));
326 $ThisDirectoryRecord['raw']['filesize'] = Helper::LittleEndian2Int(substr($DirectoryRecordData, 10, 4));
327 $ThisDirectoryRecord['raw']['recording_date_time'] = substr($DirectoryRecordData, 18, 7);
328 $ThisDirectoryRecord['raw']['file_flags'] = Helper::LittleEndian2Int(substr($DirectoryRecordData, 25, 1));
329 $ThisDirectoryRecord['raw']['file_unit_size'] = Helper::LittleEndian2Int(substr($DirectoryRecordData, 26, 1));
330 $ThisDirectoryRecord['raw']['interleave_gap_size'] = Helper::LittleEndian2Int(substr($DirectoryRecordData, 27, 1));
331 $ThisDirectoryRecord['raw']['volume_sequence_number'] = Helper::LittleEndian2Int(substr($DirectoryRecordData, 28, 2));
332 $ThisDirectoryRecord['raw']['file_identifier_length'] = Helper::LittleEndian2Int(substr($DirectoryRecordData, 32, 1));
333 $ThisDirectoryRecord['raw']['file_identifier'] = substr($DirectoryRecordData, 33, $ThisDirectoryRecord['raw']['file_identifier_length']);
334
335 $ThisDirectoryRecord['file_identifier_ascii'] = Helper::iconv_fallback($TextEncoding, $info['encoding'], $ThisDirectoryRecord['raw']['file_identifier']);
336
337 $ThisDirectoryRecord['filesize'] = $ThisDirectoryRecord['raw']['filesize'];
338 $ThisDirectoryRecord['offset_bytes'] = $ThisDirectoryRecord['raw']['offset_logical'] * 2048;
339 $ThisDirectoryRecord['file_flags']['hidden'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x01);
340 $ThisDirectoryRecord['file_flags']['directory'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x02);
341 $ThisDirectoryRecord['file_flags']['associated'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x04);
342 $ThisDirectoryRecord['file_flags']['extended'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x08);
343 $ThisDirectoryRecord['file_flags']['permissions'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x10);
344 $ThisDirectoryRecord['file_flags']['multiple'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x80);
345 $ThisDirectoryRecord['recording_timestamp'] = $this->ISOtime2UNIXtime($ThisDirectoryRecord['raw']['recording_date_time']);
346
347 if ($ThisDirectoryRecord['file_flags']['directory']) {
348 $ThisDirectoryRecord['filename'] = $directorydata['full_path'];
349 } else {
350 $ThisDirectoryRecord['filename'] = $directorydata['full_path'].$this->ISOstripFilenameVersion($ThisDirectoryRecord['file_identifier_ascii']);
351 $info['iso']['files'] = Helper::array_merge_clobber($info['iso']['files'], Helper::CreateDeepArray($ThisDirectoryRecord['filename'], '/', $ThisDirectoryRecord['filesize']));
352 }
353
354 $DirectoryRecord[] = $ThisDirectoryRecord;
355 $DirectoryRecordData = fread($this->getid3->fp, 1);
356 }
357
358 return $DirectoryRecord;
359 }
360
366 public function ISOstripFilenameVersion($ISOfilename)
367 {
368 // convert 'filename.ext;1' to 'filename.ext'
369 if (!strstr($ISOfilename, ';')) {
370 return $ISOfilename;
371 } else {
372 return substr($ISOfilename, 0, strpos($ISOfilename, ';'));
373 }
374 }
375
381 public function ISOtimeText2UNIXtime($ISOtime)
382 {
383 $UNIXyear = (int) substr($ISOtime, 0, 4);
384 $UNIXmonth = (int) substr($ISOtime, 4, 2);
385 $UNIXday = (int) substr($ISOtime, 6, 2);
386 $UNIXhour = (int) substr($ISOtime, 8, 2);
387 $UNIXminute = (int) substr($ISOtime, 10, 2);
388 $UNIXsecond = (int) substr($ISOtime, 12, 2);
389
390 if (!$UNIXyear) {
391 return false;
392 }
393
394 return gmmktime($UNIXhour, $UNIXminute, $UNIXsecond, $UNIXmonth, $UNIXday, $UNIXyear);
395 }
396
402 public function ISOtime2UNIXtime($ISOtime)
403 {
404 // Represented by seven bytes:
405 // 1: Number of years since 1900
406 // 2: Month of the year from 1 to 12
407 // 3: Day of the Month from 1 to 31
408 // 4: Hour of the day from 0 to 23
409 // 5: Minute of the hour from 0 to 59
410 // 6: second of the minute from 0 to 59
411 // 7: Offset from Greenwich Mean Time in number of 15 minute intervals from -48 (West) to +52 (East)
412
413 $UNIXyear = ord($ISOtime{0}) + 1900;
414 $UNIXmonth = ord($ISOtime{1});
415 $UNIXday = ord($ISOtime{2});
416 $UNIXhour = ord($ISOtime{3});
417 $UNIXminute = ord($ISOtime{4});
418 $UNIXsecond = ord($ISOtime{5});
419 $GMToffset = $this->TwosCompliment2Decimal(ord($ISOtime{5}));
420
421 return gmmktime($UNIXhour, $UNIXminute, $UNIXsecond, $UNIXmonth, $UNIXday, $UNIXyear);
422 }
423
429 public function TwosCompliment2Decimal($BinaryValue)
430 {
431 // http://sandbox.mc.edu/~bennet/cs110/tc/tctod.html
432 // First check if the number is negative or positive by looking at the sign bit.
433 // If it is positive, simply convert it to decimal.
434 // If it is negative, make it positive by inverting the bits and adding one.
435 // Then, convert the result to decimal.
436 // The negative of this number is the value of the original binary.
437
438 if ($BinaryValue & 0x80) {
439
440 // negative number
441 return (0 - ((~$BinaryValue & 0xFF) + 1));
442 } else {
443 // positive number
444 return $BinaryValue;
445 }
446 }
447}
php
An exception for terminatinating execution or to throw for unit testing.
GetId3\Handler\BaseHandler
GetId3() by James Heinrich info@getid3.org //.
Definition: BaseHandler.php:26
GetId3\Handler\BaseHandler\fseek
fseek($bytes, $whence=SEEK_SET)
Definition: BaseHandler.php:148
GetId3\Lib\Helper
GetId3() by James Heinrich info@getid3.org //.
Definition: Helper.php:27
GetId3\Lib\Helper\array_merge_clobber
static array_merge_clobber($array1, $array2)
Definition: Helper.php:561
GetId3\Lib\Helper\iconv_fallback
static iconv_fallback($in_charset, $out_charset, $string)
@staticvar array $ConversionFunctionList
Definition: Helper.php:1375
GetId3\Lib\Helper\LittleEndian2Int
static LittleEndian2Int($byteword, $signed=false)
Definition: Helper.php:413
GetId3\Lib\Helper\CreateDeepArray
static CreateDeepArray($ArrayPath, $Separator, $Value)
Definition: Helper.php:726
GetId3\Module\Misc\Iso
GetId3() by James Heinrich info@getid3.org //.
Definition: Iso.php:30
GetId3\Module\Misc\Iso\ISOstripFilenameVersion
ISOstripFilenameVersion($ISOfilename)
Definition: Iso.php:366
GetId3\Module\Misc\Iso\ISOtime2UNIXtime
ISOtime2UNIXtime($ISOtime)
Definition: Iso.php:402
GetId3\Module\Misc\Iso\TwosCompliment2Decimal
TwosCompliment2Decimal($BinaryValue)
Definition: Iso.php:429
GetId3\Module\Misc\Iso\ISOtimeText2UNIXtime
ISOtimeText2UNIXtime($ISOtime)
Definition: Iso.php:381
GetId3\Module\Misc\Iso\ParseDirectoryRecord
ParseDirectoryRecord($directorydata)
Definition: Iso.php:307
GetId3\Module\Misc\Iso\ParsePrimaryVolumeDescriptor
ParsePrimaryVolumeDescriptor(&$ISOheader)
Definition: Iso.php:79
GetId3\Module\Misc\Iso\ParseSupplementaryVolumeDescriptor
ParseSupplementaryVolumeDescriptor(&$ISOheader)
Definition: Iso.php:158
$info
$info
Definition: example_052.php:80