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Merge branch 'v1' into v3
[lhc/web/www.git] / www / plugins-dist / medias / lib / getid3 / write.id3v2.php
1 <?php
2 /////////////////////////////////////////////////////////////////
3 /// getID3() by James Heinrich <info@getid3.org> //
4 // available at http://getid3.sourceforge.net //
5 // or http://www.getid3.org //
6 // also https://github.com/JamesHeinrich/getID3 //
7 /////////////////////////////////////////////////////////////////
8 // See readme.txt for more details //
9 /////////////////////////////////////////////////////////////////
10 /// //
11 // write.id3v2.php //
12 // module for writing ID3v2 tags //
13 // dependencies: module.tag.id3v2.php //
14 // ///
15 /////////////////////////////////////////////////////////////////
16
17 getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v2.php', __FILE__, true);
18
19 class getid3_write_id3v2
20 {
21 public $filename;
22 public $tag_data;
23 public $fread_buffer_size = 32768; // read buffer size in bytes
24 public $paddedlength = 4096; // minimum length of ID3v2 tag in bytes
25 public $majorversion = 3; // ID3v2 major version (2, 3 (recommended), 4)
26 public $minorversion = 0; // ID3v2 minor version - always 0
27 public $merge_existing_data = false; // if true, merge new data with existing tags; if false, delete old tag data and only write new tags
28 public $id3v2_default_encodingid = 0; // default text encoding (ISO-8859-1) if not explicitly passed
29 public $id3v2_use_unsynchronisation = false; // the specs say it should be TRUE, but most other ID3v2-aware programs are broken if unsynchronization is used, so by default don't use it.
30 public $warnings = array(); // any non-critical errors will be stored here
31 public $errors = array(); // any critical errors will be stored here
32
33 public function __construct() {
34 return true;
35 }
36
37 public function WriteID3v2() {
38 // File MUST be writeable - CHMOD(646) at least. It's best if the
39 // directory is also writeable, because that method is both faster and less susceptible to errors.
40
41 if (!empty($this->filename) && (is_writeable($this->filename) || (!file_exists($this->filename) && is_writeable(dirname($this->filename))))) {
42 // Initialize getID3 engine
43 $getID3 = new getID3;
44 $OldThisFileInfo = $getID3->analyze($this->filename);
45 if (!getid3_lib::intValueSupported($OldThisFileInfo['filesize'])) {
46 $this->errors[] = 'Unable to write ID3v2 because file is larger than '.round(PHP_INT_MAX / 1073741824).'GB';
47 fclose($fp_source);
48 return false;
49 }
50 if ($this->merge_existing_data) {
51 // merge with existing data
52 if (!empty($OldThisFileInfo['id3v2'])) {
53 $this->tag_data = $this->array_join_merge($OldThisFileInfo['id3v2'], $this->tag_data);
54 }
55 }
56 $this->paddedlength = (isset($OldThisFileInfo['id3v2']['headerlength']) ? max($OldThisFileInfo['id3v2']['headerlength'], $this->paddedlength) : $this->paddedlength);
57
58 if ($NewID3v2Tag = $this->GenerateID3v2Tag()) {
59
60 if (file_exists($this->filename) && is_writeable($this->filename) && isset($OldThisFileInfo['id3v2']['headerlength']) && ($OldThisFileInfo['id3v2']['headerlength'] == strlen($NewID3v2Tag))) {
61
62 // best and fastest method - insert-overwrite existing tag (padded to length of old tag if neccesary)
63 if (file_exists($this->filename)) {
64
65 if (is_readable($this->filename) && is_writable($this->filename) && is_file($this->filename) && ($fp = fopen($this->filename, 'r+b'))) {
66 rewind($fp);
67 fwrite($fp, $NewID3v2Tag, strlen($NewID3v2Tag));
68 fclose($fp);
69 } else {
70 $this->errors[] = 'Could not fopen("'.$this->filename.'", "r+b")';
71 }
72
73 } else {
74
75 if (is_writable($this->filename) && is_file($this->filename) && ($fp = fopen($this->filename, 'wb'))) {
76 rewind($fp);
77 fwrite($fp, $NewID3v2Tag, strlen($NewID3v2Tag));
78 fclose($fp);
79 } else {
80 $this->errors[] = 'Could not fopen("'.$this->filename.'", "wb")';
81 }
82
83 }
84
85 } else {
86
87 if ($tempfilename = tempnam(GETID3_TEMP_DIR, 'getID3')) {
88 if (is_readable($this->filename) && is_file($this->filename) && ($fp_source = fopen($this->filename, 'rb'))) {
89 if (is_writable($tempfilename) && is_file($tempfilename) && ($fp_temp = fopen($tempfilename, 'wb'))) {
90
91 fwrite($fp_temp, $NewID3v2Tag, strlen($NewID3v2Tag));
92
93 rewind($fp_source);
94 if (!empty($OldThisFileInfo['avdataoffset'])) {
95 fseek($fp_source, $OldThisFileInfo['avdataoffset']);
96 }
97
98 while ($buffer = fread($fp_source, $this->fread_buffer_size)) {
99 fwrite($fp_temp, $buffer, strlen($buffer));
100 }
101
102 fclose($fp_temp);
103 fclose($fp_source);
104 copy($tempfilename, $this->filename);
105 unlink($tempfilename);
106 return true;
107
108 } else {
109 $this->errors[] = 'Could not fopen("'.$tempfilename.'", "wb")';
110 }
111 fclose($fp_source);
112
113 } else {
114 $this->errors[] = 'Could not fopen("'.$this->filename.'", "rb")';
115 }
116 }
117 return false;
118
119 }
120
121 } else {
122
123 $this->errors[] = '$this->GenerateID3v2Tag() failed';
124
125 }
126
127 if (!empty($this->errors)) {
128 return false;
129 }
130 return true;
131 } else {
132 $this->errors[] = 'WriteID3v2() failed: !is_writeable('.$this->filename.')';
133 }
134 return false;
135 }
136
137 public function RemoveID3v2() {
138 // File MUST be writeable - CHMOD(646) at least. It's best if the
139 // directory is also writeable, because that method is both faster and less susceptible to errors.
140 if (is_writeable(dirname($this->filename))) {
141
142 // preferred method - only one copying operation, minimal chance of corrupting
143 // original file if script is interrupted, but required directory to be writeable
144 if (is_readable($this->filename) && is_file($this->filename) && ($fp_source = fopen($this->filename, 'rb'))) {
145
146 // Initialize getID3 engine
147 $getID3 = new getID3;
148 $OldThisFileInfo = $getID3->analyze($this->filename);
149 if (!getid3_lib::intValueSupported($OldThisFileInfo['filesize'])) {
150 $this->errors[] = 'Unable to remove ID3v2 because file is larger than '.round(PHP_INT_MAX / 1073741824).'GB';
151 fclose($fp_source);
152 return false;
153 }
154 rewind($fp_source);
155 if ($OldThisFileInfo['avdataoffset'] !== false) {
156 fseek($fp_source, $OldThisFileInfo['avdataoffset']);
157 }
158 if (is_writable($this->filename) && is_file($this->filename) && ($fp_temp = fopen($this->filename.'getid3tmp', 'w+b'))) {
159 while ($buffer = fread($fp_source, $this->fread_buffer_size)) {
160 fwrite($fp_temp, $buffer, strlen($buffer));
161 }
162 fclose($fp_temp);
163 } else {
164 $this->errors[] = 'Could not fopen("'.$this->filename.'getid3tmp", "w+b")';
165 }
166 fclose($fp_source);
167 } else {
168 $this->errors[] = 'Could not fopen("'.$this->filename.'", "rb")';
169 }
170 if (file_exists($this->filename)) {
171 unlink($this->filename);
172 }
173 rename($this->filename.'getid3tmp', $this->filename);
174
175 } elseif (is_writable($this->filename)) {
176
177 // less desirable alternate method - double-copies the file, overwrites original file
178 // and could corrupt source file if the script is interrupted or an error occurs.
179 if (is_readable($this->filename) && is_file($this->filename) && ($fp_source = fopen($this->filename, 'rb'))) {
180
181 // Initialize getID3 engine
182 $getID3 = new getID3;
183 $OldThisFileInfo = $getID3->analyze($this->filename);
184 if (!getid3_lib::intValueSupported($OldThisFileInfo['filesize'])) {
185 $this->errors[] = 'Unable to remove ID3v2 because file is larger than '.round(PHP_INT_MAX / 1073741824).'GB';
186 fclose($fp_source);
187 return false;
188 }
189 rewind($fp_source);
190 if ($OldThisFileInfo['avdataoffset'] !== false) {
191 fseek($fp_source, $OldThisFileInfo['avdataoffset']);
192 }
193 if ($fp_temp = tmpfile()) {
194 while ($buffer = fread($fp_source, $this->fread_buffer_size)) {
195 fwrite($fp_temp, $buffer, strlen($buffer));
196 }
197 fclose($fp_source);
198 if (is_writable($this->filename) && is_file($this->filename) && ($fp_source = fopen($this->filename, 'wb'))) {
199 rewind($fp_temp);
200 while ($buffer = fread($fp_temp, $this->fread_buffer_size)) {
201 fwrite($fp_source, $buffer, strlen($buffer));
202 }
203 fseek($fp_temp, -128, SEEK_END);
204 fclose($fp_source);
205 } else {
206 $this->errors[] = 'Could not fopen("'.$this->filename.'", "wb")';
207 }
208 fclose($fp_temp);
209 } else {
210 $this->errors[] = 'Could not create tmpfile()';
211 }
212 } else {
213 $this->errors[] = 'Could not fopen("'.$this->filename.'", "rb")';
214 }
215
216 } else {
217
218 $this->errors[] = 'Directory and file both not writeable';
219
220 }
221
222 if (!empty($this->errors)) {
223 return false;
224 }
225 return true;
226 }
227
228
229 public function GenerateID3v2TagFlags($flags) {
230 switch ($this->majorversion) {
231 case 4:
232 // %abcd0000
233 $flag = (!empty($flags['unsynchronisation']) ? '1' : '0'); // a - Unsynchronisation
234 $flag .= (!empty($flags['extendedheader'] ) ? '1' : '0'); // b - Extended header
235 $flag .= (!empty($flags['experimental'] ) ? '1' : '0'); // c - Experimental indicator
236 $flag .= (!empty($flags['footer'] ) ? '1' : '0'); // d - Footer present
237 $flag .= '0000';
238 break;
239
240 case 3:
241 // %abc00000
242 $flag = (!empty($flags['unsynchronisation']) ? '1' : '0'); // a - Unsynchronisation
243 $flag .= (!empty($flags['extendedheader'] ) ? '1' : '0'); // b - Extended header
244 $flag .= (!empty($flags['experimental'] ) ? '1' : '0'); // c - Experimental indicator
245 $flag .= '00000';
246 break;
247
248 case 2:
249 // %ab000000
250 $flag = (!empty($flags['unsynchronisation']) ? '1' : '0'); // a - Unsynchronisation
251 $flag .= (!empty($flags['compression'] ) ? '1' : '0'); // b - Compression
252 $flag .= '000000';
253 break;
254
255 default:
256 return false;
257 break;
258 }
259 return chr(bindec($flag));
260 }
261
262
263 public function GenerateID3v2FrameFlags($TagAlter=false, $FileAlter=false, $ReadOnly=false, $Compression=false, $Encryption=false, $GroupingIdentity=false, $Unsynchronisation=false, $DataLengthIndicator=false) {
264 switch ($this->majorversion) {
265 case 4:
266 // %0abc0000 %0h00kmnp
267 $flag1 = '0';
268 $flag1 .= $TagAlter ? '1' : '0'; // a - Tag alter preservation (true == discard)
269 $flag1 .= $FileAlter ? '1' : '0'; // b - File alter preservation (true == discard)
270 $flag1 .= $ReadOnly ? '1' : '0'; // c - Read only (true == read only)
271 $flag1 .= '0000';
272
273 $flag2 = '0';
274 $flag2 .= $GroupingIdentity ? '1' : '0'; // h - Grouping identity (true == contains group information)
275 $flag2 .= '00';
276 $flag2 .= $Compression ? '1' : '0'; // k - Compression (true == compressed)
277 $flag2 .= $Encryption ? '1' : '0'; // m - Encryption (true == encrypted)
278 $flag2 .= $Unsynchronisation ? '1' : '0'; // n - Unsynchronisation (true == unsynchronised)
279 $flag2 .= $DataLengthIndicator ? '1' : '0'; // p - Data length indicator (true == data length indicator added)
280 break;
281
282 case 3:
283 // %abc00000 %ijk00000
284 $flag1 = $TagAlter ? '1' : '0'; // a - Tag alter preservation (true == discard)
285 $flag1 .= $FileAlter ? '1' : '0'; // b - File alter preservation (true == discard)
286 $flag1 .= $ReadOnly ? '1' : '0'; // c - Read only (true == read only)
287 $flag1 .= '00000';
288
289 $flag2 = $Compression ? '1' : '0'; // i - Compression (true == compressed)
290 $flag2 .= $Encryption ? '1' : '0'; // j - Encryption (true == encrypted)
291 $flag2 .= $GroupingIdentity ? '1' : '0'; // k - Grouping identity (true == contains group information)
292 $flag2 .= '00000';
293 break;
294
295 default:
296 return false;
297 break;
298
299 }
300 return chr(bindec($flag1)).chr(bindec($flag2));
301 }
302
303 public function GenerateID3v2FrameData($frame_name, $source_data_array) {
304 if (!getid3_id3v2::IsValidID3v2FrameName($frame_name, $this->majorversion)) {
305 return false;
306 }
307 $framedata = '';
308
309 if (($this->majorversion < 3) || ($this->majorversion > 4)) {
310
311 $this->errors[] = 'Only ID3v2.3 and ID3v2.4 are supported in GenerateID3v2FrameData()';
312
313 } else { // $this->majorversion 3 or 4
314
315 switch ($frame_name) {
316 case 'UFID':
317 // 4.1 UFID Unique file identifier
318 // Owner identifier <text string> $00
319 // Identifier <up to 64 bytes binary data>
320 if (strlen($source_data_array['data']) > 64) {
321 $this->errors[] = 'Identifier not allowed to be longer than 64 bytes in '.$frame_name.' (supplied data was '.strlen($source_data_array['data']).' bytes long)';
322 } else {
323 $framedata .= str_replace("\x00", '', $source_data_array['ownerid'])."\x00";
324 $framedata .= substr($source_data_array['data'], 0, 64); // max 64 bytes - truncate anything longer
325 }
326 break;
327
328 case 'TXXX':
329 // 4.2.2 TXXX User defined text information frame
330 // Text encoding $xx
331 // Description <text string according to encoding> $00 (00)
332 // Value <text string according to encoding>
333 $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
334 if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'], $this->majorversion)) {
335 $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].') for ID3v2.'.$this->majorversion;
336 } else {
337 $framedata .= chr($source_data_array['encodingid']);
338 $framedata .= $source_data_array['description'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
339 $framedata .= $source_data_array['data'];
340 }
341 break;
342
343 case 'WXXX':
344 // 4.3.2 WXXX User defined URL link frame
345 // Text encoding $xx
346 // Description <text string according to encoding> $00 (00)
347 // URL <text string>
348 $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
349 if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'], $this->majorversion)) {
350 $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].') for ID3v2.'.$this->majorversion;
351 } elseif (!isset($source_data_array['data']) || !$this->IsValidURL($source_data_array['data'], false, false)) {
352 //$this->errors[] = 'Invalid URL in '.$frame_name.' ('.$source_data_array['data'].')';
353 // probably should be an error, need to rewrite IsValidURL() to handle other encodings
354 $this->warnings[] = 'Invalid URL in '.$frame_name.' ('.$source_data_array['data'].')';
355 } else {
356 $framedata .= chr($source_data_array['encodingid']);
357 $framedata .= $source_data_array['description'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
358 $framedata .= $source_data_array['data'];
359 }
360 break;
361
362 case 'IPLS':
363 // 4.4 IPLS Involved people list (ID3v2.3 only)
364 // Text encoding $xx
365 // People list strings <textstrings>
366 $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
367 if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'], $this->majorversion)) {
368 $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].') for ID3v2.'.$this->majorversion;
369 } else {
370 $framedata .= chr($source_data_array['encodingid']);
371 $framedata .= $source_data_array['data'];
372 }
373 break;
374
375 case 'MCDI':
376 // 4.4 MCDI Music CD identifier
377 // CD TOC <binary data>
378 $framedata .= $source_data_array['data'];
379 break;
380
381 case 'ETCO':
382 // 4.5 ETCO Event timing codes
383 // Time stamp format $xx
384 // Where time stamp format is:
385 // $01 (32-bit value) MPEG frames from beginning of file
386 // $02 (32-bit value) milliseconds from beginning of file
387 // Followed by a list of key events in the following format:
388 // Type of event $xx
389 // Time stamp $xx (xx ...)
390 // The 'Time stamp' is set to zero if directly at the beginning of the sound
391 // or after the previous event. All events MUST be sorted in chronological order.
392 if (($source_data_array['timestampformat'] > 2) || ($source_data_array['timestampformat'] < 1)) {
393 $this->errors[] = 'Invalid Time Stamp Format byte in '.$frame_name.' ('.$source_data_array['timestampformat'].')';
394 } else {
395 $framedata .= chr($source_data_array['timestampformat']);
396 foreach ($source_data_array as $key => $val) {
397 if (!$this->ID3v2IsValidETCOevent($val['typeid'])) {
398 $this->errors[] = 'Invalid Event Type byte in '.$frame_name.' ('.$val['typeid'].')';
399 } elseif (($key != 'timestampformat') && ($key != 'flags')) {
400 if (($val['timestamp'] > 0) && ($previousETCOtimestamp >= $val['timestamp'])) {
401 // The 'Time stamp' is set to zero if directly at the beginning of the sound
402 // or after the previous event. All events MUST be sorted in chronological order.
403 $this->errors[] = 'Out-of-order timestamp in '.$frame_name.' ('.$val['timestamp'].') for Event Type ('.$val['typeid'].')';
404 } else {
405 $framedata .= chr($val['typeid']);
406 $framedata .= getid3_lib::BigEndian2String($val['timestamp'], 4, false);
407 }
408 }
409 }
410 }
411 break;
412
413 case 'MLLT':
414 // 4.6 MLLT MPEG location lookup table
415 // MPEG frames between reference $xx xx
416 // Bytes between reference $xx xx xx
417 // Milliseconds between reference $xx xx xx
418 // Bits for bytes deviation $xx
419 // Bits for milliseconds dev. $xx
420 // Then for every reference the following data is included;
421 // Deviation in bytes %xxx....
422 // Deviation in milliseconds %xxx....
423 if (($source_data_array['framesbetweenreferences'] > 0) && ($source_data_array['framesbetweenreferences'] <= 65535)) {
424 $framedata .= getid3_lib::BigEndian2String($source_data_array['framesbetweenreferences'], 2, false);
425 } else {
426 $this->errors[] = 'Invalid MPEG Frames Between References in '.$frame_name.' ('.$source_data_array['framesbetweenreferences'].')';
427 }
428 if (($source_data_array['bytesbetweenreferences'] > 0) && ($source_data_array['bytesbetweenreferences'] <= 16777215)) {
429 $framedata .= getid3_lib::BigEndian2String($source_data_array['bytesbetweenreferences'], 3, false);
430 } else {
431 $this->errors[] = 'Invalid bytes Between References in '.$frame_name.' ('.$source_data_array['bytesbetweenreferences'].')';
432 }
433 if (($source_data_array['msbetweenreferences'] > 0) && ($source_data_array['msbetweenreferences'] <= 16777215)) {
434 $framedata .= getid3_lib::BigEndian2String($source_data_array['msbetweenreferences'], 3, false);
435 } else {
436 $this->errors[] = 'Invalid Milliseconds Between References in '.$frame_name.' ('.$source_data_array['msbetweenreferences'].')';
437 }
438 if (!$this->IsWithinBitRange($source_data_array['bitsforbytesdeviation'], 8, false)) {
439 if (($source_data_array['bitsforbytesdeviation'] % 4) == 0) {
440 $framedata .= chr($source_data_array['bitsforbytesdeviation']);
441 } else {
442 $this->errors[] = 'Bits For Bytes Deviation in '.$frame_name.' ('.$source_data_array['bitsforbytesdeviation'].') must be a multiple of 4.';
443 }
444 } else {
445 $this->errors[] = 'Invalid Bits For Bytes Deviation in '.$frame_name.' ('.$source_data_array['bitsforbytesdeviation'].')';
446 }
447 if (!$this->IsWithinBitRange($source_data_array['bitsformsdeviation'], 8, false)) {
448 if (($source_data_array['bitsformsdeviation'] % 4) == 0) {
449 $framedata .= chr($source_data_array['bitsformsdeviation']);
450 } else {
451 $this->errors[] = 'Bits For Milliseconds Deviation in '.$frame_name.' ('.$source_data_array['bitsforbytesdeviation'].') must be a multiple of 4.';
452 }
453 } else {
454 $this->errors[] = 'Invalid Bits For Milliseconds Deviation in '.$frame_name.' ('.$source_data_array['bitsformsdeviation'].')';
455 }
456 foreach ($source_data_array as $key => $val) {
457 if (($key != 'framesbetweenreferences') && ($key != 'bytesbetweenreferences') && ($key != 'msbetweenreferences') && ($key != 'bitsforbytesdeviation') && ($key != 'bitsformsdeviation') && ($key != 'flags')) {
458 $unwrittenbitstream .= str_pad(getid3_lib::Dec2Bin($val['bytedeviation']), $source_data_array['bitsforbytesdeviation'], '0', STR_PAD_LEFT);
459 $unwrittenbitstream .= str_pad(getid3_lib::Dec2Bin($val['msdeviation']), $source_data_array['bitsformsdeviation'], '0', STR_PAD_LEFT);
460 }
461 }
462 for ($i = 0; $i < strlen($unwrittenbitstream); $i += 8) {
463 $highnibble = bindec(substr($unwrittenbitstream, $i, 4)) << 4;
464 $lownibble = bindec(substr($unwrittenbitstream, $i + 4, 4));
465 $framedata .= chr($highnibble & $lownibble);
466 }
467 break;
468
469 case 'SYTC':
470 // 4.7 SYTC Synchronised tempo codes
471 // Time stamp format $xx
472 // Tempo data <binary data>
473 // Where time stamp format is:
474 // $01 (32-bit value) MPEG frames from beginning of file
475 // $02 (32-bit value) milliseconds from beginning of file
476 if (($source_data_array['timestampformat'] > 2) || ($source_data_array['timestampformat'] < 1)) {
477 $this->errors[] = 'Invalid Time Stamp Format byte in '.$frame_name.' ('.$source_data_array['timestampformat'].')';
478 } else {
479 $framedata .= chr($source_data_array['timestampformat']);
480 foreach ($source_data_array as $key => $val) {
481 if (!$this->ID3v2IsValidETCOevent($val['typeid'])) {
482 $this->errors[] = 'Invalid Event Type byte in '.$frame_name.' ('.$val['typeid'].')';
483 } elseif (($key != 'timestampformat') && ($key != 'flags')) {
484 if (($val['tempo'] < 0) || ($val['tempo'] > 510)) {
485 $this->errors[] = 'Invalid Tempo (max = 510) in '.$frame_name.' ('.$val['tempo'].') at timestamp ('.$val['timestamp'].')';
486 } else {
487 if ($val['tempo'] > 255) {
488 $framedata .= chr(255);
489 $val['tempo'] -= 255;
490 }
491 $framedata .= chr($val['tempo']);
492 $framedata .= getid3_lib::BigEndian2String($val['timestamp'], 4, false);
493 }
494 }
495 }
496 }
497 break;
498
499 case 'USLT':
500 // 4.8 USLT Unsynchronised lyric/text transcription
501 // Text encoding $xx
502 // Language $xx xx xx
503 // Content descriptor <text string according to encoding> $00 (00)
504 // Lyrics/text <full text string according to encoding>
505 $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
506 if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'])) {
507 $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].') for ID3v2.'.$this->majorversion;
508 } elseif (getid3_id3v2::LanguageLookup($source_data_array['language'], true) == '') {
509 $this->errors[] = 'Invalid Language in '.$frame_name.' ('.$source_data_array['language'].')';
510 } else {
511 $framedata .= chr($source_data_array['encodingid']);
512 $framedata .= strtolower($source_data_array['language']);
513 $framedata .= $source_data_array['description'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
514 $framedata .= $source_data_array['data'];
515 }
516 break;
517
518 case 'SYLT':
519 // 4.9 SYLT Synchronised lyric/text
520 // Text encoding $xx
521 // Language $xx xx xx
522 // Time stamp format $xx
523 // $01 (32-bit value) MPEG frames from beginning of file
524 // $02 (32-bit value) milliseconds from beginning of file
525 // Content type $xx
526 // Content descriptor <text string according to encoding> $00 (00)
527 // Terminated text to be synced (typically a syllable)
528 // Sync identifier (terminator to above string) $00 (00)
529 // Time stamp $xx (xx ...)
530 $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
531 if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'])) {
532 $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].') for ID3v2.'.$this->majorversion;
533 } elseif (getid3_id3v2::LanguageLookup($source_data_array['language'], true) == '') {
534 $this->errors[] = 'Invalid Language in '.$frame_name.' ('.$source_data_array['language'].')';
535 } elseif (($source_data_array['timestampformat'] > 2) || ($source_data_array['timestampformat'] < 1)) {
536 $this->errors[] = 'Invalid Time Stamp Format byte in '.$frame_name.' ('.$source_data_array['timestampformat'].')';
537 } elseif (!$this->ID3v2IsValidSYLTtype($source_data_array['contenttypeid'])) {
538 $this->errors[] = 'Invalid Content Type byte in '.$frame_name.' ('.$source_data_array['contenttypeid'].')';
539 } elseif (!is_array($source_data_array['data'])) {
540 $this->errors[] = 'Invalid Lyric/Timestamp data in '.$frame_name.' (must be an array)';
541 } else {
542 $framedata .= chr($source_data_array['encodingid']);
543 $framedata .= strtolower($source_data_array['language']);
544 $framedata .= chr($source_data_array['timestampformat']);
545 $framedata .= chr($source_data_array['contenttypeid']);
546 $framedata .= $source_data_array['description'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
547 ksort($source_data_array['data']);
548 foreach ($source_data_array['data'] as $key => $val) {
549 $framedata .= $val['data'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
550 $framedata .= getid3_lib::BigEndian2String($val['timestamp'], 4, false);
551 }
552 }
553 break;
554
555 case 'COMM':
556 // 4.10 COMM Comments
557 // Text encoding $xx
558 // Language $xx xx xx
559 // Short content descrip. <text string according to encoding> $00 (00)
560 // The actual text <full text string according to encoding>
561 $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
562 if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'])) {
563 $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].') for ID3v2.'.$this->majorversion;
564 } elseif (getid3_id3v2::LanguageLookup($source_data_array['language'], true) == '') {
565 $this->errors[] = 'Invalid Language in '.$frame_name.' ('.$source_data_array['language'].')';
566 } else {
567 $framedata .= chr($source_data_array['encodingid']);
568 $framedata .= strtolower($source_data_array['language']);
569 $framedata .= $source_data_array['description'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
570 $framedata .= $source_data_array['data'];
571 }
572 break;
573
574 case 'RVA2':
575 // 4.11 RVA2 Relative volume adjustment (2) (ID3v2.4+ only)
576 // Identification <text string> $00
577 // The 'identification' string is used to identify the situation and/or
578 // device where this adjustment should apply. The following is then
579 // repeated for every channel:
580 // Type of channel $xx
581 // Volume adjustment $xx xx
582 // Bits representing peak $xx
583 // Peak volume $xx (xx ...)
584 $framedata .= str_replace("\x00", '', $source_data_array['description'])."\x00";
585 foreach ($source_data_array as $key => $val) {
586 if ($key != 'description') {
587 $framedata .= chr($val['channeltypeid']);
588 $framedata .= getid3_lib::BigEndian2String($val['volumeadjust'], 2, false, true); // signed 16-bit
589 if (!$this->IsWithinBitRange($source_data_array['bitspeakvolume'], 8, false)) {
590 $framedata .= chr($val['bitspeakvolume']);
591 if ($val['bitspeakvolume'] > 0) {
592 $framedata .= getid3_lib::BigEndian2String($val['peakvolume'], ceil($val['bitspeakvolume'] / 8), false, false);
593 }
594 } else {
595 $this->errors[] = 'Invalid Bits Representing Peak Volume in '.$frame_name.' ('.$val['bitspeakvolume'].') (range = 0 to 255)';
596 }
597 }
598 }
599 break;
600
601 case 'RVAD':
602 // 4.12 RVAD Relative volume adjustment (ID3v2.3 only)
603 // Increment/decrement %00fedcba
604 // Bits used for volume descr. $xx
605 // Relative volume change, right $xx xx (xx ...) // a
606 // Relative volume change, left $xx xx (xx ...) // b
607 // Peak volume right $xx xx (xx ...)
608 // Peak volume left $xx xx (xx ...)
609 // Relative volume change, right back $xx xx (xx ...) // c
610 // Relative volume change, left back $xx xx (xx ...) // d
611 // Peak volume right back $xx xx (xx ...)
612 // Peak volume left back $xx xx (xx ...)
613 // Relative volume change, center $xx xx (xx ...) // e
614 // Peak volume center $xx xx (xx ...)
615 // Relative volume change, bass $xx xx (xx ...) // f
616 // Peak volume bass $xx xx (xx ...)
617 if (!$this->IsWithinBitRange($source_data_array['bitsvolume'], 8, false)) {
618 $this->errors[] = 'Invalid Bits For Volume Description byte in '.$frame_name.' ('.$source_data_array['bitsvolume'].') (range = 1 to 255)';
619 } else {
620 $incdecflag .= '00';
621 $incdecflag .= $source_data_array['incdec']['right'] ? '1' : '0'; // a - Relative volume change, right
622 $incdecflag .= $source_data_array['incdec']['left'] ? '1' : '0'; // b - Relative volume change, left
623 $incdecflag .= $source_data_array['incdec']['rightrear'] ? '1' : '0'; // c - Relative volume change, right back
624 $incdecflag .= $source_data_array['incdec']['leftrear'] ? '1' : '0'; // d - Relative volume change, left back
625 $incdecflag .= $source_data_array['incdec']['center'] ? '1' : '0'; // e - Relative volume change, center
626 $incdecflag .= $source_data_array['incdec']['bass'] ? '1' : '0'; // f - Relative volume change, bass
627 $framedata .= chr(bindec($incdecflag));
628 $framedata .= chr($source_data_array['bitsvolume']);
629 $framedata .= getid3_lib::BigEndian2String($source_data_array['volumechange']['right'], ceil($source_data_array['bitsvolume'] / 8), false);
630 $framedata .= getid3_lib::BigEndian2String($source_data_array['volumechange']['left'], ceil($source_data_array['bitsvolume'] / 8), false);
631 $framedata .= getid3_lib::BigEndian2String($source_data_array['peakvolume']['right'], ceil($source_data_array['bitsvolume'] / 8), false);
632 $framedata .= getid3_lib::BigEndian2String($source_data_array['peakvolume']['left'], ceil($source_data_array['bitsvolume'] / 8), false);
633 if ($source_data_array['volumechange']['rightrear'] || $source_data_array['volumechange']['leftrear'] ||
634 $source_data_array['peakvolume']['rightrear'] || $source_data_array['peakvolume']['leftrear'] ||
635 $source_data_array['volumechange']['center'] || $source_data_array['peakvolume']['center'] ||
636 $source_data_array['volumechange']['bass'] || $source_data_array['peakvolume']['bass']) {
637 $framedata .= getid3_lib::BigEndian2String($source_data_array['volumechange']['rightrear'], ceil($source_data_array['bitsvolume']/8), false);
638 $framedata .= getid3_lib::BigEndian2String($source_data_array['volumechange']['leftrear'], ceil($source_data_array['bitsvolume']/8), false);
639 $framedata .= getid3_lib::BigEndian2String($source_data_array['peakvolume']['rightrear'], ceil($source_data_array['bitsvolume']/8), false);
640 $framedata .= getid3_lib::BigEndian2String($source_data_array['peakvolume']['leftrear'], ceil($source_data_array['bitsvolume']/8), false);
641 }
642 if ($source_data_array['volumechange']['center'] || $source_data_array['peakvolume']['center'] ||
643 $source_data_array['volumechange']['bass'] || $source_data_array['peakvolume']['bass']) {
644 $framedata .= getid3_lib::BigEndian2String($source_data_array['volumechange']['center'], ceil($source_data_array['bitsvolume']/8), false);
645 $framedata .= getid3_lib::BigEndian2String($source_data_array['peakvolume']['center'], ceil($source_data_array['bitsvolume']/8), false);
646 }
647 if ($source_data_array['volumechange']['bass'] || $source_data_array['peakvolume']['bass']) {
648 $framedata .= getid3_lib::BigEndian2String($source_data_array['volumechange']['bass'], ceil($source_data_array['bitsvolume']/8), false);
649 $framedata .= getid3_lib::BigEndian2String($source_data_array['peakvolume']['bass'], ceil($source_data_array['bitsvolume']/8), false);
650 }
651 }
652 break;
653
654 case 'EQU2':
655 // 4.12 EQU2 Equalisation (2) (ID3v2.4+ only)
656 // Interpolation method $xx
657 // $00 Band
658 // $01 Linear
659 // Identification <text string> $00
660 // The following is then repeated for every adjustment point
661 // Frequency $xx xx
662 // Volume adjustment $xx xx
663 if (($source_data_array['interpolationmethod'] < 0) || ($source_data_array['interpolationmethod'] > 1)) {
664 $this->errors[] = 'Invalid Interpolation Method byte in '.$frame_name.' ('.$source_data_array['interpolationmethod'].') (valid = 0 or 1)';
665 } else {
666 $framedata .= chr($source_data_array['interpolationmethod']);
667 $framedata .= str_replace("\x00", '', $source_data_array['description'])."\x00";
668 foreach ($source_data_array['data'] as $key => $val) {
669 $framedata .= getid3_lib::BigEndian2String(intval(round($key * 2)), 2, false);
670 $framedata .= getid3_lib::BigEndian2String($val, 2, false, true); // signed 16-bit
671 }
672 }
673 break;
674
675 case 'EQUA':
676 // 4.12 EQUA Equalisation (ID3v2.3 only)
677 // Adjustment bits $xx
678 // This is followed by 2 bytes + ('adjustment bits' rounded up to the
679 // nearest byte) for every equalisation band in the following format,
680 // giving a frequency range of 0 - 32767Hz:
681 // Increment/decrement %x (MSB of the Frequency)
682 // Frequency (lower 15 bits)
683 // Adjustment $xx (xx ...)
684 if (!$this->IsWithinBitRange($source_data_array['bitsvolume'], 8, false)) {
685 $this->errors[] = 'Invalid Adjustment Bits byte in '.$frame_name.' ('.$source_data_array['bitsvolume'].') (range = 1 to 255)';
686 } else {
687 $framedata .= chr($source_data_array['adjustmentbits']);
688 foreach ($source_data_array as $key => $val) {
689 if ($key != 'bitsvolume') {
690 if (($key > 32767) || ($key < 0)) {
691 $this->errors[] = 'Invalid Frequency in '.$frame_name.' ('.$key.') (range = 0 to 32767)';
692 } else {
693 if ($val >= 0) {
694 // put MSB of frequency to 1 if increment, 0 if decrement
695 $key |= 0x8000;
696 }
697 $framedata .= getid3_lib::BigEndian2String($key, 2, false);
698 $framedata .= getid3_lib::BigEndian2String($val, ceil($source_data_array['adjustmentbits'] / 8), false);
699 }
700 }
701 }
702 }
703 break;
704
705 case 'RVRB':
706 // 4.13 RVRB Reverb
707 // Reverb left (ms) $xx xx
708 // Reverb right (ms) $xx xx
709 // Reverb bounces, left $xx
710 // Reverb bounces, right $xx
711 // Reverb feedback, left to left $xx
712 // Reverb feedback, left to right $xx
713 // Reverb feedback, right to right $xx
714 // Reverb feedback, right to left $xx
715 // Premix left to right $xx
716 // Premix right to left $xx
717 if (!$this->IsWithinBitRange($source_data_array['left'], 16, false)) {
718 $this->errors[] = 'Invalid Reverb Left in '.$frame_name.' ('.$source_data_array['left'].') (range = 0 to 65535)';
719 } elseif (!$this->IsWithinBitRange($source_data_array['right'], 16, false)) {
720 $this->errors[] = 'Invalid Reverb Left in '.$frame_name.' ('.$source_data_array['right'].') (range = 0 to 65535)';
721 } elseif (!$this->IsWithinBitRange($source_data_array['bouncesL'], 8, false)) {
722 $this->errors[] = 'Invalid Reverb Bounces, Left in '.$frame_name.' ('.$source_data_array['bouncesL'].') (range = 0 to 255)';
723 } elseif (!$this->IsWithinBitRange($source_data_array['bouncesR'], 8, false)) {
724 $this->errors[] = 'Invalid Reverb Bounces, Right in '.$frame_name.' ('.$source_data_array['bouncesR'].') (range = 0 to 255)';
725 } elseif (!$this->IsWithinBitRange($source_data_array['feedbackLL'], 8, false)) {
726 $this->errors[] = 'Invalid Reverb Feedback, Left-To-Left in '.$frame_name.' ('.$source_data_array['feedbackLL'].') (range = 0 to 255)';
727 } elseif (!$this->IsWithinBitRange($source_data_array['feedbackLR'], 8, false)) {
728 $this->errors[] = 'Invalid Reverb Feedback, Left-To-Right in '.$frame_name.' ('.$source_data_array['feedbackLR'].') (range = 0 to 255)';
729 } elseif (!$this->IsWithinBitRange($source_data_array['feedbackRR'], 8, false)) {
730 $this->errors[] = 'Invalid Reverb Feedback, Right-To-Right in '.$frame_name.' ('.$source_data_array['feedbackRR'].') (range = 0 to 255)';
731 } elseif (!$this->IsWithinBitRange($source_data_array['feedbackRL'], 8, false)) {
732 $this->errors[] = 'Invalid Reverb Feedback, Right-To-Left in '.$frame_name.' ('.$source_data_array['feedbackRL'].') (range = 0 to 255)';
733 } elseif (!$this->IsWithinBitRange($source_data_array['premixLR'], 8, false)) {
734 $this->errors[] = 'Invalid Premix, Left-To-Right in '.$frame_name.' ('.$source_data_array['premixLR'].') (range = 0 to 255)';
735 } elseif (!$this->IsWithinBitRange($source_data_array['premixRL'], 8, false)) {
736 $this->errors[] = 'Invalid Premix, Right-To-Left in '.$frame_name.' ('.$source_data_array['premixRL'].') (range = 0 to 255)';
737 } else {
738 $framedata .= getid3_lib::BigEndian2String($source_data_array['left'], 2, false);
739 $framedata .= getid3_lib::BigEndian2String($source_data_array['right'], 2, false);
740 $framedata .= chr($source_data_array['bouncesL']);
741 $framedata .= chr($source_data_array['bouncesR']);
742 $framedata .= chr($source_data_array['feedbackLL']);
743 $framedata .= chr($source_data_array['feedbackLR']);
744 $framedata .= chr($source_data_array['feedbackRR']);
745 $framedata .= chr($source_data_array['feedbackRL']);
746 $framedata .= chr($source_data_array['premixLR']);
747 $framedata .= chr($source_data_array['premixRL']);
748 }
749 break;
750
751 case 'APIC':
752 // 4.14 APIC Attached picture
753 // Text encoding $xx
754 // MIME type <text string> $00
755 // Picture type $xx
756 // Description <text string according to encoding> $00 (00)
757 // Picture data <binary data>
758 $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
759 if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'])) {
760 $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].') for ID3v2.'.$this->majorversion;
761 } elseif (!$this->ID3v2IsValidAPICpicturetype($source_data_array['picturetypeid'])) {
762 $this->errors[] = 'Invalid Picture Type byte in '.$frame_name.' ('.$source_data_array['picturetypeid'].') for ID3v2.'.$this->majorversion;
763 } elseif (($this->majorversion >= 3) && (!$this->ID3v2IsValidAPICimageformat($source_data_array['mime']))) {
764 $this->errors[] = 'Invalid MIME Type in '.$frame_name.' ('.$source_data_array['mime'].') for ID3v2.'.$this->majorversion;
765 } elseif (($source_data_array['mime'] == '-->') && (!$this->IsValidURL($source_data_array['data'], false, false))) {
766 //$this->errors[] = 'Invalid URL in '.$frame_name.' ('.$source_data_array['data'].')';
767 // probably should be an error, need to rewrite IsValidURL() to handle other encodings
768 $this->warnings[] = 'Invalid URL in '.$frame_name.' ('.$source_data_array['data'].')';
769 } else {
770 $framedata .= chr($source_data_array['encodingid']);
771 $framedata .= str_replace("\x00", '', $source_data_array['mime'])."\x00";
772 $framedata .= chr($source_data_array['picturetypeid']);
773 $framedata .= (!empty($source_data_array['description']) ? $source_data_array['description'] : '').getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
774 $framedata .= $source_data_array['data'];
775 }
776 break;
777
778 case 'GEOB':
779 // 4.15 GEOB General encapsulated object
780 // Text encoding $xx
781 // MIME type <text string> $00
782 // Filename <text string according to encoding> $00 (00)
783 // Content description <text string according to encoding> $00 (00)
784 // Encapsulated object <binary data>
785 $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
786 if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'])) {
787 $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].') for ID3v2.'.$this->majorversion;
788 } elseif (!$this->IsValidMIMEstring($source_data_array['mime'])) {
789 $this->errors[] = 'Invalid MIME Type in '.$frame_name.' ('.$source_data_array['mime'].')';
790 } elseif (!$source_data_array['description']) {
791 $this->errors[] = 'Missing Description in '.$frame_name;
792 } else {
793 $framedata .= chr($source_data_array['encodingid']);
794 $framedata .= str_replace("\x00", '', $source_data_array['mime'])."\x00";
795 $framedata .= $source_data_array['filename'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
796 $framedata .= $source_data_array['description'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
797 $framedata .= $source_data_array['data'];
798 }
799 break;
800
801 case 'PCNT':
802 // 4.16 PCNT Play counter
803 // When the counter reaches all one's, one byte is inserted in
804 // front of the counter thus making the counter eight bits bigger
805 // Counter $xx xx xx xx (xx ...)
806 $framedata .= getid3_lib::BigEndian2String($source_data_array['data'], 4, false);
807 break;
808
809 case 'POPM':
810 // 4.17 POPM Popularimeter
811 // When the counter reaches all one's, one byte is inserted in
812 // front of the counter thus making the counter eight bits bigger
813 // Email to user <text string> $00
814 // Rating $xx
815 // Counter $xx xx xx xx (xx ...)
816 if (!$this->IsWithinBitRange($source_data_array['rating'], 8, false)) {
817 $this->errors[] = 'Invalid Rating byte in '.$frame_name.' ('.$source_data_array['rating'].') (range = 0 to 255)';
818 } elseif (!$this->IsValidEmail($source_data_array['email'])) {
819 $this->errors[] = 'Invalid Email in '.$frame_name.' ('.$source_data_array['email'].')';
820 } else {
821 $framedata .= str_replace("\x00", '', $source_data_array['email'])."\x00";
822 $framedata .= chr($source_data_array['rating']);
823 $framedata .= getid3_lib::BigEndian2String($source_data_array['data'], 4, false);
824 }
825 break;
826
827 case 'RBUF':
828 // 4.18 RBUF Recommended buffer size
829 // Buffer size $xx xx xx
830 // Embedded info flag %0000000x
831 // Offset to next tag $xx xx xx xx
832 if (!$this->IsWithinBitRange($source_data_array['buffersize'], 24, false)) {
833 $this->errors[] = 'Invalid Buffer Size in '.$frame_name;
834 } elseif (!$this->IsWithinBitRange($source_data_array['nexttagoffset'], 32, false)) {
835 $this->errors[] = 'Invalid Offset To Next Tag in '.$frame_name;
836 } else {
837 $framedata .= getid3_lib::BigEndian2String($source_data_array['buffersize'], 3, false);
838 $flag .= '0000000';
839 $flag .= $source_data_array['flags']['embededinfo'] ? '1' : '0';
840 $framedata .= chr(bindec($flag));
841 $framedata .= getid3_lib::BigEndian2String($source_data_array['nexttagoffset'], 4, false);
842 }
843 break;
844
845 case 'AENC':
846 // 4.19 AENC Audio encryption
847 // Owner identifier <text string> $00
848 // Preview start $xx xx
849 // Preview length $xx xx
850 // Encryption info <binary data>
851 if (!$this->IsWithinBitRange($source_data_array['previewstart'], 16, false)) {
852 $this->errors[] = 'Invalid Preview Start in '.$frame_name.' ('.$source_data_array['previewstart'].')';
853 } elseif (!$this->IsWithinBitRange($source_data_array['previewlength'], 16, false)) {
854 $this->errors[] = 'Invalid Preview Length in '.$frame_name.' ('.$source_data_array['previewlength'].')';
855 } else {
856 $framedata .= str_replace("\x00", '', $source_data_array['ownerid'])."\x00";
857 $framedata .= getid3_lib::BigEndian2String($source_data_array['previewstart'], 2, false);
858 $framedata .= getid3_lib::BigEndian2String($source_data_array['previewlength'], 2, false);
859 $framedata .= $source_data_array['encryptioninfo'];
860 }
861 break;
862
863 case 'LINK':
864 // 4.20 LINK Linked information
865 // Frame identifier $xx xx xx xx
866 // URL <text string> $00
867 // ID and additional data <text string(s)>
868 if (!getid3_id3v2::IsValidID3v2FrameName($source_data_array['frameid'], $this->majorversion)) {
869 $this->errors[] = 'Invalid Frame Identifier in '.$frame_name.' ('.$source_data_array['frameid'].')';
870 } elseif (!$this->IsValidURL($source_data_array['data'], true, false)) {
871 //$this->errors[] = 'Invalid URL in '.$frame_name.' ('.$source_data_array['data'].')';
872 // probably should be an error, need to rewrite IsValidURL() to handle other encodings
873 $this->warnings[] = 'Invalid URL in '.$frame_name.' ('.$source_data_array['data'].')';
874 } elseif ((($source_data_array['frameid'] == 'AENC') || ($source_data_array['frameid'] == 'APIC') || ($source_data_array['frameid'] == 'GEOB') || ($source_data_array['frameid'] == 'TXXX')) && ($source_data_array['additionaldata'] == '')) {
875 $this->errors[] = 'Content Descriptor must be specified as additional data for Frame Identifier of '.$source_data_array['frameid'].' in '.$frame_name;
876 } elseif (($source_data_array['frameid'] == 'USER') && (getid3_id3v2::LanguageLookup($source_data_array['additionaldata'], true) == '')) {
877 $this->errors[] = 'Language must be specified as additional data for Frame Identifier of '.$source_data_array['frameid'].' in '.$frame_name;
878 } elseif (($source_data_array['frameid'] == 'PRIV') && ($source_data_array['additionaldata'] == '')) {
879 $this->errors[] = 'Owner Identifier must be specified as additional data for Frame Identifier of '.$source_data_array['frameid'].' in '.$frame_name;
880 } elseif ((($source_data_array['frameid'] == 'COMM') || ($source_data_array['frameid'] == 'SYLT') || ($source_data_array['frameid'] == 'USLT')) && ((getid3_id3v2::LanguageLookup(substr($source_data_array['additionaldata'], 0, 3), true) == '') || (substr($source_data_array['additionaldata'], 3) == ''))) {
881 $this->errors[] = 'Language followed by Content Descriptor must be specified as additional data for Frame Identifier of '.$source_data_array['frameid'].' in '.$frame_name;
882 } else {
883 $framedata .= $source_data_array['frameid'];
884 $framedata .= str_replace("\x00", '', $source_data_array['data'])."\x00";
885 switch ($source_data_array['frameid']) {
886 case 'COMM':
887 case 'SYLT':
888 case 'USLT':
889 case 'PRIV':
890 case 'USER':
891 case 'AENC':
892 case 'APIC':
893 case 'GEOB':
894 case 'TXXX':
895 $framedata .= $source_data_array['additionaldata'];
896 break;
897 case 'ASPI':
898 case 'ETCO':
899 case 'EQU2':
900 case 'MCID':
901 case 'MLLT':
902 case 'OWNE':
903 case 'RVA2':
904 case 'RVRB':
905 case 'SYTC':
906 case 'IPLS':
907 case 'RVAD':
908 case 'EQUA':
909 // no additional data required
910 break;
911 case 'RBUF':
912 if ($this->majorversion == 3) {
913 // no additional data required
914 } else {
915 $this->errors[] = $source_data_array['frameid'].' is not a valid Frame Identifier in '.$frame_name.' (in ID3v2.'.$this->majorversion.')';
916 }
917
918 default:
919 if ((substr($source_data_array['frameid'], 0, 1) == 'T') || (substr($source_data_array['frameid'], 0, 1) == 'W')) {
920 // no additional data required
921 } else {
922 $this->errors[] = $source_data_array['frameid'].' is not a valid Frame Identifier in '.$frame_name.' (in ID3v2.'.$this->majorversion.')';
923 }
924 break;
925 }
926 }
927 break;
928
929 case 'POSS':
930 // 4.21 POSS Position synchronisation frame (ID3v2.3+ only)
931 // Time stamp format $xx
932 // Position $xx (xx ...)
933 if (($source_data_array['timestampformat'] < 1) || ($source_data_array['timestampformat'] > 2)) {
934 $this->errors[] = 'Invalid Time Stamp Format in '.$frame_name.' ('.$source_data_array['timestampformat'].') (valid = 1 or 2)';
935 } elseif (!$this->IsWithinBitRange($source_data_array['position'], 32, false)) {
936 $this->errors[] = 'Invalid Position in '.$frame_name.' ('.$source_data_array['position'].') (range = 0 to 4294967295)';
937 } else {
938 $framedata .= chr($source_data_array['timestampformat']);
939 $framedata .= getid3_lib::BigEndian2String($source_data_array['position'], 4, false);
940 }
941 break;
942
943 case 'USER':
944 // 4.22 USER Terms of use (ID3v2.3+ only)
945 // Text encoding $xx
946 // Language $xx xx xx
947 // The actual text <text string according to encoding>
948 $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
949 if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'])) {
950 $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].')';
951 } elseif (getid3_id3v2::LanguageLookup($source_data_array['language'], true) == '') {
952 $this->errors[] = 'Invalid Language in '.$frame_name.' ('.$source_data_array['language'].')';
953 } else {
954 $framedata .= chr($source_data_array['encodingid']);
955 $framedata .= strtolower($source_data_array['language']);
956 $framedata .= $source_data_array['data'];
957 }
958 break;
959
960 case 'OWNE':
961 // 4.23 OWNE Ownership frame (ID3v2.3+ only)
962 // Text encoding $xx
963 // Price paid <text string> $00
964 // Date of purch. <text string>
965 // Seller <text string according to encoding>
966 $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
967 if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'])) {
968 $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].')';
969 } elseif (!$this->IsANumber($source_data_array['pricepaid']['value'], false)) {
970 $this->errors[] = 'Invalid Price Paid in '.$frame_name.' ('.$source_data_array['pricepaid']['value'].')';
971 } elseif (!$this->IsValidDateStampString($source_data_array['purchasedate'])) {
972 $this->errors[] = 'Invalid Date Of Purchase in '.$frame_name.' ('.$source_data_array['purchasedate'].') (format = YYYYMMDD)';
973 } else {
974 $framedata .= chr($source_data_array['encodingid']);
975 $framedata .= str_replace("\x00", '', $source_data_array['pricepaid']['value'])."\x00";
976 $framedata .= $source_data_array['purchasedate'];
977 $framedata .= $source_data_array['seller'];
978 }
979 break;
980
981 case 'COMR':
982 // 4.24 COMR Commercial frame (ID3v2.3+ only)
983 // Text encoding $xx
984 // Price string <text string> $00
985 // Valid until <text string>
986 // Contact URL <text string> $00
987 // Received as $xx
988 // Name of seller <text string according to encoding> $00 (00)
989 // Description <text string according to encoding> $00 (00)
990 // Picture MIME type <string> $00
991 // Seller logo <binary data>
992 $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
993 if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'])) {
994 $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].')';
995 } elseif (!$this->IsValidDateStampString($source_data_array['pricevaliduntil'])) {
996 $this->errors[] = 'Invalid Valid Until date in '.$frame_name.' ('.$source_data_array['pricevaliduntil'].') (format = YYYYMMDD)';
997 } elseif (!$this->IsValidURL($source_data_array['contacturl'], false, true)) {
998 $this->errors[] = 'Invalid Contact URL in '.$frame_name.' ('.$source_data_array['contacturl'].') (allowed schemes: http, https, ftp, mailto)';
999 } elseif (!$this->ID3v2IsValidCOMRreceivedAs($source_data_array['receivedasid'])) {
1000 $this->errors[] = 'Invalid Received As byte in '.$frame_name.' ('.$source_data_array['contacturl'].') (range = 0 to 8)';
1001 } elseif (!$this->IsValidMIMEstring($source_data_array['mime'])) {
1002 $this->errors[] = 'Invalid MIME Type in '.$frame_name.' ('.$source_data_array['mime'].')';
1003 } else {
1004 $framedata .= chr($source_data_array['encodingid']);
1005 unset($pricestring);
1006 foreach ($source_data_array['price'] as $key => $val) {
1007 if ($this->ID3v2IsValidPriceString($key.$val['value'])) {
1008 $pricestrings[] = $key.$val['value'];
1009 } else {
1010 $this->errors[] = 'Invalid Price String in '.$frame_name.' ('.$key.$val['value'].')';
1011 }
1012 }
1013 $framedata .= implode('/', $pricestrings);
1014 $framedata .= $source_data_array['pricevaliduntil'];
1015 $framedata .= str_replace("\x00", '', $source_data_array['contacturl'])."\x00";
1016 $framedata .= chr($source_data_array['receivedasid']);
1017 $framedata .= $source_data_array['sellername'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
1018 $framedata .= $source_data_array['description'].getid3_id3v2::TextEncodingTerminatorLookup($source_data_array['encodingid']);
1019 $framedata .= $source_data_array['mime']."\x00";
1020 $framedata .= $source_data_array['logo'];
1021 }
1022 break;
1023
1024 case 'ENCR':
1025 // 4.25 ENCR Encryption method registration (ID3v2.3+ only)
1026 // Owner identifier <text string> $00
1027 // Method symbol $xx
1028 // Encryption data <binary data>
1029 if (!$this->IsWithinBitRange($source_data_array['methodsymbol'], 8, false)) {
1030 $this->errors[] = 'Invalid Group Symbol in '.$frame_name.' ('.$source_data_array['methodsymbol'].') (range = 0 to 255)';
1031 } else {
1032 $framedata .= str_replace("\x00", '', $source_data_array['ownerid'])."\x00";
1033 $framedata .= ord($source_data_array['methodsymbol']);
1034 $framedata .= $source_data_array['data'];
1035 }
1036 break;
1037
1038 case 'GRID':
1039 // 4.26 GRID Group identification registration (ID3v2.3+ only)
1040 // Owner identifier <text string> $00
1041 // Group symbol $xx
1042 // Group dependent data <binary data>
1043 if (!$this->IsWithinBitRange($source_data_array['groupsymbol'], 8, false)) {
1044 $this->errors[] = 'Invalid Group Symbol in '.$frame_name.' ('.$source_data_array['groupsymbol'].') (range = 0 to 255)';
1045 } else {
1046 $framedata .= str_replace("\x00", '', $source_data_array['ownerid'])."\x00";
1047 $framedata .= ord($source_data_array['groupsymbol']);
1048 $framedata .= $source_data_array['data'];
1049 }
1050 break;
1051
1052 case 'PRIV':
1053 // 4.27 PRIV Private frame (ID3v2.3+ only)
1054 // Owner identifier <text string> $00
1055 // The private data <binary data>
1056 $framedata .= str_replace("\x00", '', $source_data_array['ownerid'])."\x00";
1057 $framedata .= $source_data_array['data'];
1058 break;
1059
1060 case 'SIGN':
1061 // 4.28 SIGN Signature frame (ID3v2.4+ only)
1062 // Group symbol $xx
1063 // Signature <binary data>
1064 if (!$this->IsWithinBitRange($source_data_array['groupsymbol'], 8, false)) {
1065 $this->errors[] = 'Invalid Group Symbol in '.$frame_name.' ('.$source_data_array['groupsymbol'].') (range = 0 to 255)';
1066 } else {
1067 $framedata .= ord($source_data_array['groupsymbol']);
1068 $framedata .= $source_data_array['data'];
1069 }
1070 break;
1071
1072 case 'SEEK':
1073 // 4.29 SEEK Seek frame (ID3v2.4+ only)
1074 // Minimum offset to next tag $xx xx xx xx
1075 if (!$this->IsWithinBitRange($source_data_array['data'], 32, false)) {
1076 $this->errors[] = 'Invalid Minimum Offset in '.$frame_name.' ('.$source_data_array['data'].') (range = 0 to 4294967295)';
1077 } else {
1078 $framedata .= getid3_lib::BigEndian2String($source_data_array['data'], 4, false);
1079 }
1080 break;
1081
1082 case 'ASPI':
1083 // 4.30 ASPI Audio seek point index (ID3v2.4+ only)
1084 // Indexed data start (S) $xx xx xx xx
1085 // Indexed data length (L) $xx xx xx xx
1086 // Number of index points (N) $xx xx
1087 // Bits per index point (b) $xx
1088 // Then for every index point the following data is included:
1089 // Fraction at index (Fi) $xx (xx)
1090 if (!$this->IsWithinBitRange($source_data_array['datastart'], 32, false)) {
1091 $this->errors[] = 'Invalid Indexed Data Start in '.$frame_name.' ('.$source_data_array['datastart'].') (range = 0 to 4294967295)';
1092 } elseif (!$this->IsWithinBitRange($source_data_array['datalength'], 32, false)) {
1093 $this->errors[] = 'Invalid Indexed Data Length in '.$frame_name.' ('.$source_data_array['datalength'].') (range = 0 to 4294967295)';
1094 } elseif (!$this->IsWithinBitRange($source_data_array['indexpoints'], 16, false)) {
1095 $this->errors[] = 'Invalid Number Of Index Points in '.$frame_name.' ('.$source_data_array['indexpoints'].') (range = 0 to 65535)';
1096 } elseif (!$this->IsWithinBitRange($source_data_array['bitsperpoint'], 8, false)) {
1097 $this->errors[] = 'Invalid Bits Per Index Point in '.$frame_name.' ('.$source_data_array['bitsperpoint'].') (range = 0 to 255)';
1098 } elseif ($source_data_array['indexpoints'] != count($source_data_array['indexes'])) {
1099 $this->errors[] = 'Number Of Index Points does not match actual supplied data in '.$frame_name;
1100 } else {
1101 $framedata .= getid3_lib::BigEndian2String($source_data_array['datastart'], 4, false);
1102 $framedata .= getid3_lib::BigEndian2String($source_data_array['datalength'], 4, false);
1103 $framedata .= getid3_lib::BigEndian2String($source_data_array['indexpoints'], 2, false);
1104 $framedata .= getid3_lib::BigEndian2String($source_data_array['bitsperpoint'], 1, false);
1105 foreach ($source_data_array['indexes'] as $key => $val) {
1106 $framedata .= getid3_lib::BigEndian2String($val, ceil($source_data_array['bitsperpoint'] / 8), false);
1107 }
1108 }
1109 break;
1110
1111 case 'RGAD':
1112 // RGAD Replay Gain Adjustment
1113 // http://privatewww.essex.ac.uk/~djmrob/replaygain/
1114 // Peak Amplitude $xx $xx $xx $xx
1115 // Radio Replay Gain Adjustment %aaabbbcd %dddddddd
1116 // Audiophile Replay Gain Adjustment %aaabbbcd %dddddddd
1117 // a - name code
1118 // b - originator code
1119 // c - sign bit
1120 // d - replay gain adjustment
1121
1122 if (($source_data_array['track_adjustment'] > 51) || ($source_data_array['track_adjustment'] < -51)) {
1123 $this->errors[] = 'Invalid Track Adjustment in '.$frame_name.' ('.$source_data_array['track_adjustment'].') (range = -51.0 to +51.0)';
1124 } elseif (($source_data_array['album_adjustment'] > 51) || ($source_data_array['album_adjustment'] < -51)) {
1125 $this->errors[] = 'Invalid Album Adjustment in '.$frame_name.' ('.$source_data_array['album_adjustment'].') (range = -51.0 to +51.0)';
1126 } elseif (!$this->ID3v2IsValidRGADname($source_data_array['raw']['track_name'])) {
1127 $this->errors[] = 'Invalid Track Name Code in '.$frame_name.' ('.$source_data_array['raw']['track_name'].') (range = 0 to 2)';
1128 } elseif (!$this->ID3v2IsValidRGADname($source_data_array['raw']['album_name'])) {
1129 $this->errors[] = 'Invalid Album Name Code in '.$frame_name.' ('.$source_data_array['raw']['album_name'].') (range = 0 to 2)';
1130 } elseif (!$this->ID3v2IsValidRGADoriginator($source_data_array['raw']['track_originator'])) {
1131 $this->errors[] = 'Invalid Track Originator Code in '.$frame_name.' ('.$source_data_array['raw']['track_originator'].') (range = 0 to 3)';
1132 } elseif (!$this->ID3v2IsValidRGADoriginator($source_data_array['raw']['album_originator'])) {
1133 $this->errors[] = 'Invalid Album Originator Code in '.$frame_name.' ('.$source_data_array['raw']['album_originator'].') (range = 0 to 3)';
1134 } else {
1135 $framedata .= getid3_lib::Float2String($source_data_array['peakamplitude'], 32);
1136 $framedata .= getid3_lib::RGADgainString($source_data_array['raw']['track_name'], $source_data_array['raw']['track_originator'], $source_data_array['track_adjustment']);
1137 $framedata .= getid3_lib::RGADgainString($source_data_array['raw']['album_name'], $source_data_array['raw']['album_originator'], $source_data_array['album_adjustment']);
1138 }
1139 break;
1140
1141 default:
1142 if ((($this->majorversion == 2) && (strlen($frame_name) != 3)) || (($this->majorversion > 2) && (strlen($frame_name) != 4))) {
1143 $this->errors[] = 'Invalid frame name "'.$frame_name.'" for ID3v2.'.$this->majorversion;
1144 } elseif ($frame_name{0} == 'T') {
1145 // 4.2. T??? Text information frames
1146 // Text encoding $xx
1147 // Information <text string(s) according to encoding>
1148 $source_data_array['encodingid'] = (isset($source_data_array['encodingid']) ? $source_data_array['encodingid'] : $this->id3v2_default_encodingid);
1149 if (!$this->ID3v2IsValidTextEncoding($source_data_array['encodingid'])) {
1150 $this->errors[] = 'Invalid Text Encoding in '.$frame_name.' ('.$source_data_array['encodingid'].') for ID3v2.'.$this->majorversion;
1151 } else {
1152 $framedata .= chr($source_data_array['encodingid']);
1153 $framedata .= $source_data_array['data'];
1154 }
1155 } elseif ($frame_name{0} == 'W') {
1156 // 4.3. W??? URL link frames
1157 // URL <text string>
1158 if (!$this->IsValidURL($source_data_array['data'], false, false)) {
1159 //$this->errors[] = 'Invalid URL in '.$frame_name.' ('.$source_data_array['data'].')';
1160 // probably should be an error, need to rewrite IsValidURL() to handle other encodings
1161 $this->warnings[] = 'Invalid URL in '.$frame_name.' ('.$source_data_array['data'].')';
1162 } else {
1163 $framedata .= $source_data_array['data'];
1164 }
1165 } else {
1166 $this->errors[] = $frame_name.' not yet supported in $this->GenerateID3v2FrameData()';
1167 }
1168 break;
1169 }
1170 }
1171 if (!empty($this->errors)) {
1172 return false;
1173 }
1174 return $framedata;
1175 }
1176
1177 public function ID3v2FrameIsAllowed($frame_name, $source_data_array) {
1178 static $PreviousFrames = array();
1179
1180 if ($frame_name === null) {
1181 // if the writing functions are called multiple times, the static array needs to be
1182 // cleared - this can be done by calling $this->ID3v2FrameIsAllowed(null, '')
1183 $PreviousFrames = array();
1184 return true;
1185 }
1186 if ($this->majorversion == 4) {
1187 switch ($frame_name) {
1188 case 'UFID':
1189 case 'AENC':
1190 case 'ENCR':
1191 case 'GRID':
1192 if (!isset($source_data_array['ownerid'])) {
1193 $this->errors[] = '[ownerid] not specified for '.$frame_name;
1194 } elseif (in_array($frame_name.$source_data_array['ownerid'], $PreviousFrames)) {
1195 $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same OwnerID ('.$source_data_array['ownerid'].')';
1196 } else {
1197 $PreviousFrames[] = $frame_name.$source_data_array['ownerid'];
1198 }
1199 break;
1200
1201 case 'TXXX':
1202 case 'WXXX':
1203 case 'RVA2':
1204 case 'EQU2':
1205 case 'APIC':
1206 case 'GEOB':
1207 if (!isset($source_data_array['description'])) {
1208 $this->errors[] = '[description] not specified for '.$frame_name;
1209 } elseif (in_array($frame_name.$source_data_array['description'], $PreviousFrames)) {
1210 $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Description ('.$source_data_array['description'].')';
1211 } else {
1212 $PreviousFrames[] = $frame_name.$source_data_array['description'];
1213 }
1214 break;
1215
1216 case 'USER':
1217 if (!isset($source_data_array['language'])) {
1218 $this->errors[] = '[language] not specified for '.$frame_name;
1219 } elseif (in_array($frame_name.$source_data_array['language'], $PreviousFrames)) {
1220 $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Language ('.$source_data_array['language'].')';
1221 } else {
1222 $PreviousFrames[] = $frame_name.$source_data_array['language'];
1223 }
1224 break;
1225
1226 case 'USLT':
1227 case 'SYLT':
1228 case 'COMM':
1229 if (!isset($source_data_array['language'])) {
1230 $this->errors[] = '[language] not specified for '.$frame_name;
1231 } elseif (!isset($source_data_array['description'])) {
1232 $this->errors[] = '[description] not specified for '.$frame_name;
1233 } elseif (in_array($frame_name.$source_data_array['language'].$source_data_array['description'], $PreviousFrames)) {
1234 $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Language + Description ('.$source_data_array['language'].' + '.$source_data_array['description'].')';
1235 } else {
1236 $PreviousFrames[] = $frame_name.$source_data_array['language'].$source_data_array['description'];
1237 }
1238 break;
1239
1240 case 'POPM':
1241 if (!isset($source_data_array['email'])) {
1242 $this->errors[] = '[email] not specified for '.$frame_name;
1243 } elseif (in_array($frame_name.$source_data_array['email'], $PreviousFrames)) {
1244 $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Email ('.$source_data_array['email'].')';
1245 } else {
1246 $PreviousFrames[] = $frame_name.$source_data_array['email'];
1247 }
1248 break;
1249
1250 case 'IPLS':
1251 case 'MCDI':
1252 case 'ETCO':
1253 case 'MLLT':
1254 case 'SYTC':
1255 case 'RVRB':
1256 case 'PCNT':
1257 case 'RBUF':
1258 case 'POSS':
1259 case 'OWNE':
1260 case 'SEEK':
1261 case 'ASPI':
1262 case 'RGAD':
1263 if (in_array($frame_name, $PreviousFrames)) {
1264 $this->errors[] = 'Only one '.$frame_name.' tag allowed';
1265 } else {
1266 $PreviousFrames[] = $frame_name;
1267 }
1268 break;
1269
1270 case 'LINK':
1271 // this isn't implemented quite right (yet) - it should check the target frame data for compliance
1272 // but right now it just allows one linked frame of each type, to be safe.
1273 if (!isset($source_data_array['frameid'])) {
1274 $this->errors[] = '[frameid] not specified for '.$frame_name;
1275 } elseif (in_array($frame_name.$source_data_array['frameid'], $PreviousFrames)) {
1276 $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same FrameID ('.$source_data_array['frameid'].')';
1277 } elseif (in_array($source_data_array['frameid'], $PreviousFrames)) {
1278 // no links to singleton tags
1279 $this->errors[] = 'Cannot specify a '.$frame_name.' tag to a singleton tag that already exists ('.$source_data_array['frameid'].')';
1280 } else {
1281 $PreviousFrames[] = $frame_name.$source_data_array['frameid']; // only one linked tag of this type
1282 $PreviousFrames[] = $source_data_array['frameid']; // no non-linked singleton tags of this type
1283 }
1284 break;
1285
1286 case 'COMR':
1287 // There may be more than one 'commercial frame' in a tag, but no two may be identical
1288 // Checking isn't implemented at all (yet) - just assumes that it's OK.
1289 break;
1290
1291 case 'PRIV':
1292 case 'SIGN':
1293 if (!isset($source_data_array['ownerid'])) {
1294 $this->errors[] = '[ownerid] not specified for '.$frame_name;
1295 } elseif (!isset($source_data_array['data'])) {
1296 $this->errors[] = '[data] not specified for '.$frame_name;
1297 } elseif (in_array($frame_name.$source_data_array['ownerid'].$source_data_array['data'], $PreviousFrames)) {
1298 $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same OwnerID + Data ('.$source_data_array['ownerid'].' + '.$source_data_array['data'].')';
1299 } else {
1300 $PreviousFrames[] = $frame_name.$source_data_array['ownerid'].$source_data_array['data'];
1301 }
1302 break;
1303
1304 default:
1305 if (($frame_name{0} != 'T') && ($frame_name{0} != 'W')) {
1306 $this->errors[] = 'Frame not allowed in ID3v2.'.$this->majorversion.': '.$frame_name;
1307 }
1308 break;
1309 }
1310
1311 } elseif ($this->majorversion == 3) {
1312
1313 switch ($frame_name) {
1314 case 'UFID':
1315 case 'AENC':
1316 case 'ENCR':
1317 case 'GRID':
1318 if (!isset($source_data_array['ownerid'])) {
1319 $this->errors[] = '[ownerid] not specified for '.$frame_name;
1320 } elseif (in_array($frame_name.$source_data_array['ownerid'], $PreviousFrames)) {
1321 $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same OwnerID ('.$source_data_array['ownerid'].')';
1322 } else {
1323 $PreviousFrames[] = $frame_name.$source_data_array['ownerid'];
1324 }
1325 break;
1326
1327 case 'TXXX':
1328 case 'WXXX':
1329 case 'APIC':
1330 case 'GEOB':
1331 if (!isset($source_data_array['description'])) {
1332 $this->errors[] = '[description] not specified for '.$frame_name;
1333 } elseif (in_array($frame_name.$source_data_array['description'], $PreviousFrames)) {
1334 $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Description ('.$source_data_array['description'].')';
1335 } else {
1336 $PreviousFrames[] = $frame_name.$source_data_array['description'];
1337 }
1338 break;
1339
1340 case 'USER':
1341 if (!isset($source_data_array['language'])) {
1342 $this->errors[] = '[language] not specified for '.$frame_name;
1343 } elseif (in_array($frame_name.$source_data_array['language'], $PreviousFrames)) {
1344 $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Language ('.$source_data_array['language'].')';
1345 } else {
1346 $PreviousFrames[] = $frame_name.$source_data_array['language'];
1347 }
1348 break;
1349
1350 case 'USLT':
1351 case 'SYLT':
1352 case 'COMM':
1353 if (!isset($source_data_array['language'])) {
1354 $this->errors[] = '[language] not specified for '.$frame_name;
1355 } elseif (!isset($source_data_array['description'])) {
1356 $this->errors[] = '[description] not specified for '.$frame_name;
1357 } elseif (in_array($frame_name.$source_data_array['language'].$source_data_array['description'], $PreviousFrames)) {
1358 $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Language + Description ('.$source_data_array['language'].' + '.$source_data_array['description'].')';
1359 } else {
1360 $PreviousFrames[] = $frame_name.$source_data_array['language'].$source_data_array['description'];
1361 }
1362 break;
1363
1364 case 'POPM':
1365 if (!isset($source_data_array['email'])) {
1366 $this->errors[] = '[email] not specified for '.$frame_name;
1367 } elseif (in_array($frame_name.$source_data_array['email'], $PreviousFrames)) {
1368 $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Email ('.$source_data_array['email'].')';
1369 } else {
1370 $PreviousFrames[] = $frame_name.$source_data_array['email'];
1371 }
1372 break;
1373
1374 case 'IPLS':
1375 case 'MCDI':
1376 case 'ETCO':
1377 case 'MLLT':
1378 case 'SYTC':
1379 case 'RVAD':
1380 case 'EQUA':
1381 case 'RVRB':
1382 case 'PCNT':
1383 case 'RBUF':
1384 case 'POSS':
1385 case 'OWNE':
1386 case 'RGAD':
1387 if (in_array($frame_name, $PreviousFrames)) {
1388 $this->errors[] = 'Only one '.$frame_name.' tag allowed';
1389 } else {
1390 $PreviousFrames[] = $frame_name;
1391 }
1392 break;
1393
1394 case 'LINK':
1395 // this isn't implemented quite right (yet) - it should check the target frame data for compliance
1396 // but right now it just allows one linked frame of each type, to be safe.
1397 if (!isset($source_data_array['frameid'])) {
1398 $this->errors[] = '[frameid] not specified for '.$frame_name;
1399 } elseif (in_array($frame_name.$source_data_array['frameid'], $PreviousFrames)) {
1400 $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same FrameID ('.$source_data_array['frameid'].')';
1401 } elseif (in_array($source_data_array['frameid'], $PreviousFrames)) {
1402 // no links to singleton tags
1403 $this->errors[] = 'Cannot specify a '.$frame_name.' tag to a singleton tag that already exists ('.$source_data_array['frameid'].')';
1404 } else {
1405 $PreviousFrames[] = $frame_name.$source_data_array['frameid']; // only one linked tag of this type
1406 $PreviousFrames[] = $source_data_array['frameid']; // no non-linked singleton tags of this type
1407 }
1408 break;
1409
1410 case 'COMR':
1411 // There may be more than one 'commercial frame' in a tag, but no two may be identical
1412 // Checking isn't implemented at all (yet) - just assumes that it's OK.
1413 break;
1414
1415 case 'PRIV':
1416 if (!isset($source_data_array['ownerid'])) {
1417 $this->errors[] = '[ownerid] not specified for '.$frame_name;
1418 } elseif (!isset($source_data_array['data'])) {
1419 $this->errors[] = '[data] not specified for '.$frame_name;
1420 } elseif (in_array($frame_name.$source_data_array['ownerid'].$source_data_array['data'], $PreviousFrames)) {
1421 $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same OwnerID + Data ('.$source_data_array['ownerid'].' + '.$source_data_array['data'].')';
1422 } else {
1423 $PreviousFrames[] = $frame_name.$source_data_array['ownerid'].$source_data_array['data'];
1424 }
1425 break;
1426
1427 default:
1428 if (($frame_name{0} != 'T') && ($frame_name{0} != 'W')) {
1429 $this->errors[] = 'Frame not allowed in ID3v2.'.$this->majorversion.': '.$frame_name;
1430 }
1431 break;
1432 }
1433
1434 } elseif ($this->majorversion == 2) {
1435
1436 switch ($frame_name) {
1437 case 'UFI':
1438 case 'CRM':
1439 case 'CRA':
1440 if (!isset($source_data_array['ownerid'])) {
1441 $this->errors[] = '[ownerid] not specified for '.$frame_name;
1442 } elseif (in_array($frame_name.$source_data_array['ownerid'], $PreviousFrames)) {
1443 $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same OwnerID ('.$source_data_array['ownerid'].')';
1444 } else {
1445 $PreviousFrames[] = $frame_name.$source_data_array['ownerid'];
1446 }
1447 break;
1448
1449 case 'TXX':
1450 case 'WXX':
1451 case 'PIC':
1452 case 'GEO':
1453 if (!isset($source_data_array['description'])) {
1454 $this->errors[] = '[description] not specified for '.$frame_name;
1455 } elseif (in_array($frame_name.$source_data_array['description'], $PreviousFrames)) {
1456 $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Description ('.$source_data_array['description'].')';
1457 } else {
1458 $PreviousFrames[] = $frame_name.$source_data_array['description'];
1459 }
1460 break;
1461
1462 case 'ULT':
1463 case 'SLT':
1464 case 'COM':
1465 if (!isset($source_data_array['language'])) {
1466 $this->errors[] = '[language] not specified for '.$frame_name;
1467 } elseif (!isset($source_data_array['description'])) {
1468 $this->errors[] = '[description] not specified for '.$frame_name;
1469 } elseif (in_array($frame_name.$source_data_array['language'].$source_data_array['description'], $PreviousFrames)) {
1470 $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Language + Description ('.$source_data_array['language'].' + '.$source_data_array['description'].')';
1471 } else {
1472 $PreviousFrames[] = $frame_name.$source_data_array['language'].$source_data_array['description'];
1473 }
1474 break;
1475
1476 case 'POP':
1477 if (!isset($source_data_array['email'])) {
1478 $this->errors[] = '[email] not specified for '.$frame_name;
1479 } elseif (in_array($frame_name.$source_data_array['email'], $PreviousFrames)) {
1480 $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same Email ('.$source_data_array['email'].')';
1481 } else {
1482 $PreviousFrames[] = $frame_name.$source_data_array['email'];
1483 }
1484 break;
1485
1486 case 'IPL':
1487 case 'MCI':
1488 case 'ETC':
1489 case 'MLL':
1490 case 'STC':
1491 case 'RVA':
1492 case 'EQU':
1493 case 'REV':
1494 case 'CNT':
1495 case 'BUF':
1496 if (in_array($frame_name, $PreviousFrames)) {
1497 $this->errors[] = 'Only one '.$frame_name.' tag allowed';
1498 } else {
1499 $PreviousFrames[] = $frame_name;
1500 }
1501 break;
1502
1503 case 'LNK':
1504 // this isn't implemented quite right (yet) - it should check the target frame data for compliance
1505 // but right now it just allows one linked frame of each type, to be safe.
1506 if (!isset($source_data_array['frameid'])) {
1507 $this->errors[] = '[frameid] not specified for '.$frame_name;
1508 } elseif (in_array($frame_name.$source_data_array['frameid'], $PreviousFrames)) {
1509 $this->errors[] = 'Only one '.$frame_name.' tag allowed with the same FrameID ('.$source_data_array['frameid'].')';
1510 } elseif (in_array($source_data_array['frameid'], $PreviousFrames)) {
1511 // no links to singleton tags
1512 $this->errors[] = 'Cannot specify a '.$frame_name.' tag to a singleton tag that already exists ('.$source_data_array['frameid'].')';
1513 } else {
1514 $PreviousFrames[] = $frame_name.$source_data_array['frameid']; // only one linked tag of this type
1515 $PreviousFrames[] = $source_data_array['frameid']; // no non-linked singleton tags of this type
1516 }
1517 break;
1518
1519 default:
1520 if (($frame_name{0} != 'T') && ($frame_name{0} != 'W')) {
1521 $this->errors[] = 'Frame not allowed in ID3v2.'.$this->majorversion.': '.$frame_name;
1522 }
1523 break;
1524 }
1525 }
1526
1527 if (!empty($this->errors)) {
1528 return false;
1529 }
1530 return true;
1531 }
1532
1533 public function GenerateID3v2Tag($noerrorsonly=true) {
1534 $this->ID3v2FrameIsAllowed(null, ''); // clear static array in case this isn't the first call to $this->GenerateID3v2Tag()
1535
1536 $tagstring = '';
1537 if (is_array($this->tag_data)) {
1538 foreach ($this->tag_data as $frame_name => $frame_rawinputdata) {
1539 foreach ($frame_rawinputdata as $irrelevantindex => $source_data_array) {
1540 if (getid3_id3v2::IsValidID3v2FrameName($frame_name, $this->majorversion)) {
1541 unset($frame_length);
1542 unset($frame_flags);
1543 $frame_data = false;
1544 if ($this->ID3v2FrameIsAllowed($frame_name, $source_data_array)) {
1545 if(array_key_exists('description', $source_data_array) && array_key_exists('encodingid', $source_data_array) && array_key_exists('encoding', $this->tag_data)) {
1546 $source_data_array['description'] = getid3_lib::iconv_fallback($this->tag_data['encoding'], $source_data_array['encoding'], $source_data_array['description']);
1547 }
1548 if ($frame_data = $this->GenerateID3v2FrameData($frame_name, $source_data_array)) {
1549 $FrameUnsynchronisation = false;
1550 if ($this->majorversion >= 4) {
1551 // frame-level unsynchronisation
1552 $unsynchdata = $frame_data;
1553 if ($this->id3v2_use_unsynchronisation) {
1554 $unsynchdata = $this->Unsynchronise($frame_data);
1555 }
1556 if (strlen($unsynchdata) != strlen($frame_data)) {
1557 // unsynchronisation needed
1558 $FrameUnsynchronisation = true;
1559 $frame_data = $unsynchdata;
1560 if (isset($TagUnsynchronisation) && $TagUnsynchronisation === false) {
1561 // only set to true if ALL frames are unsynchronised
1562 } else {
1563 $TagUnsynchronisation = true;
1564 }
1565 } else {
1566 if (isset($TagUnsynchronisation)) {
1567 $TagUnsynchronisation = false;
1568 }
1569 }
1570 unset($unsynchdata);
1571
1572 $frame_length = getid3_lib::BigEndian2String(strlen($frame_data), 4, true);
1573 } else {
1574 $frame_length = getid3_lib::BigEndian2String(strlen($frame_data), 4, false);
1575 }
1576 $frame_flags = $this->GenerateID3v2FrameFlags($this->ID3v2FrameFlagsLookupTagAlter($frame_name), $this->ID3v2FrameFlagsLookupFileAlter($frame_name), false, false, false, false, $FrameUnsynchronisation, false);
1577 }
1578 } else {
1579 $this->errors[] = 'Frame "'.$frame_name.'" is NOT allowed';
1580 }
1581 if ($frame_data === false) {
1582 $this->errors[] = '$this->GenerateID3v2FrameData() failed for "'.$frame_name.'"';
1583 if ($noerrorsonly) {
1584 return false;
1585 } else {
1586 unset($frame_name);
1587 }
1588 }
1589 } else {
1590 // ignore any invalid frame names, including 'title', 'header', etc
1591 $this->warnings[] = 'Ignoring invalid ID3v2 frame type: "'.$frame_name.'"';
1592 unset($frame_name);
1593 unset($frame_length);
1594 unset($frame_flags);
1595 unset($frame_data);
1596 }
1597 if (isset($frame_name) && isset($frame_length) && isset($frame_flags) && isset($frame_data)) {
1598 $tagstring .= $frame_name.$frame_length.$frame_flags.$frame_data;
1599 }
1600 }
1601 }
1602
1603 if (!isset($TagUnsynchronisation)) {
1604 $TagUnsynchronisation = false;
1605 }
1606 if (($this->majorversion <= 3) && $this->id3v2_use_unsynchronisation) {
1607 // tag-level unsynchronisation
1608 $unsynchdata = $this->Unsynchronise($tagstring);
1609 if (strlen($unsynchdata) != strlen($tagstring)) {
1610 // unsynchronisation needed
1611 $TagUnsynchronisation = true;
1612 $tagstring = $unsynchdata;
1613 }
1614 }
1615
1616 while ($this->paddedlength < (strlen($tagstring) + getid3_id3v2::ID3v2HeaderLength($this->majorversion))) {
1617 $this->paddedlength += 1024;
1618 }
1619
1620 $footer = false; // ID3v2 footers not yet supported in getID3()
1621 if (!$footer && ($this->paddedlength > (strlen($tagstring) + getid3_id3v2::ID3v2HeaderLength($this->majorversion)))) {
1622 // pad up to $paddedlength bytes if unpadded tag is shorter than $paddedlength
1623 // "Furthermore it MUST NOT have any padding when a tag footer is added to the tag."
1624 if (($this->paddedlength - strlen($tagstring) - getid3_id3v2::ID3v2HeaderLength($this->majorversion)) > 0) {
1625 $tagstring .= str_repeat("\x00", $this->paddedlength - strlen($tagstring) - getid3_id3v2::ID3v2HeaderLength($this->majorversion));
1626 }
1627 }
1628 if ($this->id3v2_use_unsynchronisation && (substr($tagstring, strlen($tagstring) - 1, 1) == "\xFF")) {
1629 // special unsynchronisation case:
1630 // if last byte == $FF then appended a $00
1631 $TagUnsynchronisation = true;
1632 $tagstring .= "\x00";
1633 }
1634
1635 $tagheader = 'ID3';
1636 $tagheader .= chr($this->majorversion);
1637 $tagheader .= chr($this->minorversion);
1638 $tagheader .= $this->GenerateID3v2TagFlags(array('unsynchronisation'=>$TagUnsynchronisation));
1639 $tagheader .= getid3_lib::BigEndian2String(strlen($tagstring), 4, true);
1640
1641 return $tagheader.$tagstring;
1642 }
1643 $this->errors[] = 'tag_data is not an array in GenerateID3v2Tag()';
1644 return false;
1645 }
1646
1647 public function ID3v2IsValidPriceString($pricestring) {
1648 if (getid3_id3v2::LanguageLookup(substr($pricestring, 0, 3), true) == '') {
1649 return false;
1650 } elseif (!$this->IsANumber(substr($pricestring, 3), true)) {
1651 return false;
1652 }
1653 return true;
1654 }
1655
1656 public function ID3v2FrameFlagsLookupTagAlter($framename) {
1657 // unfinished
1658 switch ($framename) {
1659 case 'RGAD':
1660 $allow = true;
1661 default:
1662 $allow = false;
1663 break;
1664 }
1665 return $allow;
1666 }
1667
1668 public function ID3v2FrameFlagsLookupFileAlter($framename) {
1669 // unfinished
1670 switch ($framename) {
1671 case 'RGAD':
1672 return false;
1673 break;
1674
1675 default:
1676 return false;
1677 break;
1678 }
1679 }
1680
1681 public function ID3v2IsValidETCOevent($eventid) {
1682 if (($eventid < 0) || ($eventid > 0xFF)) {
1683 // outside range of 1 byte
1684 return false;
1685 } elseif (($eventid >= 0xF0) && ($eventid <= 0xFC)) {
1686 // reserved for future use
1687 return false;
1688 } elseif (($eventid >= 0x17) && ($eventid <= 0xDF)) {
1689 // reserved for future use
1690 return false;
1691 } elseif (($eventid >= 0x0E) && ($eventid <= 0x16) && ($this->majorversion == 2)) {
1692 // not defined in ID3v2.2
1693 return false;
1694 } elseif (($eventid >= 0x15) && ($eventid <= 0x16) && ($this->majorversion == 3)) {
1695 // not defined in ID3v2.3
1696 return false;
1697 }
1698 return true;
1699 }
1700
1701 public function ID3v2IsValidSYLTtype($contenttype) {
1702 if (($contenttype >= 0) && ($contenttype <= 8) && ($this->majorversion == 4)) {
1703 return true;
1704 } elseif (($contenttype >= 0) && ($contenttype <= 6) && ($this->majorversion == 3)) {
1705 return true;
1706 }
1707 return false;
1708 }
1709
1710 public function ID3v2IsValidRVA2channeltype($channeltype) {
1711 if (($channeltype >= 0) && ($channeltype <= 8) && ($this->majorversion == 4)) {
1712 return true;
1713 }
1714 return false;
1715 }
1716
1717 public function ID3v2IsValidAPICpicturetype($picturetype) {
1718 if (($picturetype >= 0) && ($picturetype <= 0x14) && ($this->majorversion >= 2) && ($this->majorversion <= 4)) {
1719 return true;
1720 }
1721 return false;
1722 }
1723
1724 public function ID3v2IsValidAPICimageformat($imageformat) {
1725 if ($imageformat == '-->') {
1726 return true;
1727 } elseif ($this->majorversion == 2) {
1728 if ((strlen($imageformat) == 3) && ($imageformat == strtoupper($imageformat))) {
1729 return true;
1730 }
1731 } elseif (($this->majorversion == 3) || ($this->majorversion == 4)) {
1732 if ($this->IsValidMIMEstring($imageformat)) {
1733 return true;
1734 }
1735 }
1736 return false;
1737 }
1738
1739 public function ID3v2IsValidCOMRreceivedAs($receivedas) {
1740 if (($this->majorversion >= 3) && ($receivedas >= 0) && ($receivedas <= 8)) {
1741 return true;
1742 }
1743 return false;
1744 }
1745
1746 public static function ID3v2IsValidRGADname($RGADname) {
1747 if (($RGADname >= 0) && ($RGADname <= 2)) {
1748 return true;
1749 }
1750 return false;
1751 }
1752
1753 public static function ID3v2IsValidRGADoriginator($RGADoriginator) {
1754 if (($RGADoriginator >= 0) && ($RGADoriginator <= 3)) {
1755 return true;
1756 }
1757 return false;
1758 }
1759
1760 public function ID3v2IsValidTextEncoding($textencodingbyte) {
1761 // 0 = ISO-8859-1
1762 // 1 = UTF-16 with BOM
1763 // 2 = UTF-16BE without BOM
1764 // 3 = UTF-8
1765 static $ID3v2IsValidTextEncoding_cache = array(
1766 2 => array(true, true), // ID3v2.2 - allow 0=ISO-8859-1, 1=UTF-16
1767 3 => array(true, true), // ID3v2.3 - allow 0=ISO-8859-1, 1=UTF-16
1768 4 => array(true, true, true, true), // ID3v2.4 - allow 0=ISO-8859-1, 1=UTF-16, 2=UTF-16BE, 3=UTF-8
1769 );
1770 return isset($ID3v2IsValidTextEncoding_cache[$this->majorversion][$textencodingbyte]);
1771 }
1772
1773 public static function Unsynchronise($data) {
1774 // Whenever a false synchronisation is found within the tag, one zeroed
1775 // byte is inserted after the first false synchronisation byte. The
1776 // format of a correct sync that should be altered by ID3 encoders is as
1777 // follows:
1778 // %11111111 111xxxxx
1779 // And should be replaced with:
1780 // %11111111 00000000 111xxxxx
1781 // This has the side effect that all $FF 00 combinations have to be
1782 // altered, so they won't be affected by the decoding process. Therefore
1783 // all the $FF 00 combinations have to be replaced with the $FF 00 00
1784 // combination during the unsynchronisation.
1785
1786 $data = str_replace("\xFF\x00", "\xFF\x00\x00", $data);
1787 $unsyncheddata = '';
1788 $datalength = strlen($data);
1789 for ($i = 0; $i < $datalength; $i++) {
1790 $thischar = $data{$i};
1791 $unsyncheddata .= $thischar;
1792 if ($thischar == "\xFF") {
1793 $nextchar = ord($data{$i + 1});
1794 if (($nextchar & 0xE0) == 0xE0) {
1795 // previous byte = 11111111, this byte = 111?????
1796 $unsyncheddata .= "\x00";
1797 }
1798 }
1799 }
1800 return $unsyncheddata;
1801 }
1802
1803 public function is_hash($var) {
1804 // written by dev-nullØchristophe*vg
1805 // taken from http://www.php.net/manual/en/function.array-merge-recursive.php
1806 if (is_array($var)) {
1807 $keys = array_keys($var);
1808 $all_num = true;
1809 for ($i = 0; $i < count($keys); $i++) {
1810 if (is_string($keys[$i])) {
1811 return true;
1812 }
1813 }
1814 }
1815 return false;
1816 }
1817
1818 public function array_join_merge($arr1, $arr2) {
1819 // written by dev-nullØchristophe*vg
1820 // taken from http://www.php.net/manual/en/function.array-merge-recursive.php
1821 if (is_array($arr1) && is_array($arr2)) {
1822 // the same -> merge
1823 $new_array = array();
1824
1825 if ($this->is_hash($arr1) && $this->is_hash($arr2)) {
1826 // hashes -> merge based on keys
1827 $keys = array_merge(array_keys($arr1), array_keys($arr2));
1828 foreach ($keys as $key) {
1829 $new_array[$key] = $this->array_join_merge((isset($arr1[$key]) ? $arr1[$key] : ''), (isset($arr2[$key]) ? $arr2[$key] : ''));
1830 }
1831 } else {
1832 // two real arrays -> merge
1833 $new_array = array_reverse(array_unique(array_reverse(array_merge($arr1, $arr2))));
1834 }
1835 return $new_array;
1836 } else {
1837 // not the same ... take new one if defined, else the old one stays
1838 return $arr2 ? $arr2 : $arr1;
1839 }
1840 }
1841
1842 public static function IsValidMIMEstring($mimestring) {
1843 return preg_match('#^.+/.+$#', $mimestring);
1844 }
1845
1846 public static function IsWithinBitRange($number, $maxbits, $signed=false) {
1847 if ($signed) {
1848 if (($number > (0 - pow(2, $maxbits - 1))) && ($number <= pow(2, $maxbits - 1))) {
1849 return true;
1850 }
1851 } else {
1852 if (($number >= 0) && ($number <= pow(2, $maxbits))) {
1853 return true;
1854 }
1855 }
1856 return false;
1857 }
1858
1859 public static function IsValidEmail($email) {
1860 if (function_exists('filter_var')) {
1861 return filter_var($email, FILTER_VALIDATE_EMAIL);
1862 }
1863 // VERY crude email validation
1864 return preg_match('#^[^ ]+@[a-z\\-\\.]+\\.[a-z]{2,}$#', $email);
1865 }
1866
1867 public static function IsValidURL($url, $allowUserPass=false) {
1868 if ($url == '') {
1869 return false;
1870 }
1871 if ($allowUserPass !== true) {
1872 if (strstr($url, '@')) {
1873 // in the format http://user:pass@example.com or http://user@example.com
1874 // but could easily be somebody incorrectly entering an email address in place of a URL
1875 return false;
1876 }
1877 }
1878 // 2016-06-08: relax URL checking to avoid falsely rejecting valid URLs, leave URL validation to the user
1879 // http://www.getid3.org/phpBB3/viewtopic.php?t=1926
1880 return true;
1881 /*
1882 if ($parts = $this->safe_parse_url($url)) {
1883 if (($parts['scheme'] != 'http') && ($parts['scheme'] != 'https') && ($parts['scheme'] != 'ftp') && ($parts['scheme'] != 'gopher')) {
1884 return false;
1885 } elseif (!preg_match('#^[[:alnum:]]([-.]?[0-9a-z])*\\.[a-z]{2,3}$#i', $parts['host'], $regs) && !preg_match('#^[0-9]{1,3}(\\.[0-9]{1,3}){3}$#', $parts['host'])) {
1886 return false;
1887 } elseif (!preg_match('#^([[:alnum:]-]|[\\_])*$#i', $parts['user'], $regs)) {
1888 return false;
1889 } elseif (!preg_match('#^([[:alnum:]-]|[\\_])*$#i', $parts['pass'], $regs)) {
1890 return false;
1891 } elseif (!preg_match('#^[[:alnum:]/_\\.@~-]*$#i', $parts['path'], $regs)) {
1892 return false;
1893 } elseif (!empty($parts['query']) && !preg_match('#^[[:alnum:]?&=+:;_()%\\#/,\\.-]*$#i', $parts['query'], $regs)) {
1894 return false;
1895 } else {
1896 return true;
1897 }
1898 }
1899 return false;
1900 */
1901 }
1902
1903 public static function safe_parse_url($url) {
1904 $parts = @parse_url($url);
1905 $parts['scheme'] = (isset($parts['scheme']) ? $parts['scheme'] : '');
1906 $parts['host'] = (isset($parts['host']) ? $parts['host'] : '');
1907 $parts['user'] = (isset($parts['user']) ? $parts['user'] : '');
1908 $parts['pass'] = (isset($parts['pass']) ? $parts['pass'] : '');
1909 $parts['path'] = (isset($parts['path']) ? $parts['path'] : '');
1910 $parts['query'] = (isset($parts['query']) ? $parts['query'] : '');
1911 return $parts;
1912 }
1913
1914 public static function ID3v2ShortFrameNameLookup($majorversion, $long_description) {
1915 $long_description = str_replace(' ', '_', strtolower(trim($long_description)));
1916 static $ID3v2ShortFrameNameLookup = array();
1917 if (empty($ID3v2ShortFrameNameLookup)) {
1918
1919 // The following are unique to ID3v2.2
1920 $ID3v2ShortFrameNameLookup[2]['recommended_buffer_size'] = 'BUF';
1921 $ID3v2ShortFrameNameLookup[2]['comment'] = 'COM';
1922 $ID3v2ShortFrameNameLookup[2]['audio_encryption'] = 'CRA';
1923 $ID3v2ShortFrameNameLookup[2]['encrypted_meta_frame'] = 'CRM';
1924 $ID3v2ShortFrameNameLookup[2]['equalisation'] = 'EQU';
1925 $ID3v2ShortFrameNameLookup[2]['event_timing_codes'] = 'ETC';
1926 $ID3v2ShortFrameNameLookup[2]['general_encapsulated_object'] = 'GEO';
1927 $ID3v2ShortFrameNameLookup[2]['involved_people_list'] = 'IPL';
1928 $ID3v2ShortFrameNameLookup[2]['linked_information'] = 'LNK';
1929 $ID3v2ShortFrameNameLookup[2]['music_cd_identifier'] = 'MCI';
1930 $ID3v2ShortFrameNameLookup[2]['mpeg_location_lookup_table'] = 'MLL';
1931 $ID3v2ShortFrameNameLookup[2]['attached_picture'] = 'PIC';
1932 $ID3v2ShortFrameNameLookup[2]['popularimeter'] = 'POP';
1933 $ID3v2ShortFrameNameLookup[2]['reverb'] = 'REV';
1934 $ID3v2ShortFrameNameLookup[2]['relative_volume_adjustment'] = 'RVA';
1935 $ID3v2ShortFrameNameLookup[2]['synchronised_lyric'] = 'SLT';
1936 $ID3v2ShortFrameNameLookup[2]['synchronised_tempo_codes'] = 'STC';
1937 $ID3v2ShortFrameNameLookup[2]['album'] = 'TAL';
1938 $ID3v2ShortFrameNameLookup[2]['beats_per_minute'] = 'TBP';
1939 $ID3v2ShortFrameNameLookup[2]['bpm'] = 'TBP';
1940 $ID3v2ShortFrameNameLookup[2]['composer'] = 'TCM';
1941 $ID3v2ShortFrameNameLookup[2]['genre'] = 'TCO';
1942 $ID3v2ShortFrameNameLookup[2]['part_of_a_compilation'] = 'TCP';
1943 $ID3v2ShortFrameNameLookup[2]['copyright_message'] = 'TCR';
1944 $ID3v2ShortFrameNameLookup[2]['date'] = 'TDA';
1945 $ID3v2ShortFrameNameLookup[2]['playlist_delay'] = 'TDY';
1946 $ID3v2ShortFrameNameLookup[2]['encoded_by'] = 'TEN';
1947 $ID3v2ShortFrameNameLookup[2]['file_type'] = 'TFT';
1948 $ID3v2ShortFrameNameLookup[2]['time'] = 'TIM';
1949 $ID3v2ShortFrameNameLookup[2]['initial_key'] = 'TKE';
1950 $ID3v2ShortFrameNameLookup[2]['language'] = 'TLA';
1951 $ID3v2ShortFrameNameLookup[2]['length'] = 'TLE';
1952 $ID3v2ShortFrameNameLookup[2]['media_type'] = 'TMT';
1953 $ID3v2ShortFrameNameLookup[2]['original_artist'] = 'TOA';
1954 $ID3v2ShortFrameNameLookup[2]['original_filename'] = 'TOF';
1955 $ID3v2ShortFrameNameLookup[2]['original_lyricist'] = 'TOL';
1956 $ID3v2ShortFrameNameLookup[2]['original_year'] = 'TOR';
1957 $ID3v2ShortFrameNameLookup[2]['original_album'] = 'TOT';
1958 $ID3v2ShortFrameNameLookup[2]['artist'] = 'TP1';
1959 $ID3v2ShortFrameNameLookup[2]['band'] = 'TP2';
1960 $ID3v2ShortFrameNameLookup[2]['conductor'] = 'TP3';
1961 $ID3v2ShortFrameNameLookup[2]['remixer'] = 'TP4';
1962 $ID3v2ShortFrameNameLookup[2]['part_of_a_set'] = 'TPA';
1963 $ID3v2ShortFrameNameLookup[2]['publisher'] = 'TPB';
1964 $ID3v2ShortFrameNameLookup[2]['isrc'] = 'TRC';
1965 $ID3v2ShortFrameNameLookup[2]['recording_dates'] = 'TRD';
1966 $ID3v2ShortFrameNameLookup[2]['tracknumber'] = 'TRK';
1967 $ID3v2ShortFrameNameLookup[2]['track_number'] = 'TRK';
1968 $ID3v2ShortFrameNameLookup[2]['album_artist_sort_order'] = 'TS2';
1969 $ID3v2ShortFrameNameLookup[2]['album_sort_order'] = 'TSA';
1970 $ID3v2ShortFrameNameLookup[2]['composer_sort_order'] = 'TSC';
1971 $ID3v2ShortFrameNameLookup[2]['size'] = 'TSI';
1972 $ID3v2ShortFrameNameLookup[2]['performer_sort_order'] = 'TSP';
1973 $ID3v2ShortFrameNameLookup[2]['encoder_settings'] = 'TSS';
1974 $ID3v2ShortFrameNameLookup[2]['title_sort_order'] = 'TST';
1975 $ID3v2ShortFrameNameLookup[2]['content_group_description'] = 'TT1';
1976 $ID3v2ShortFrameNameLookup[2]['title'] = 'TT2';
1977 $ID3v2ShortFrameNameLookup[2]['subtitle'] = 'TT3';
1978 $ID3v2ShortFrameNameLookup[2]['lyricist'] = 'TXT';
1979 $ID3v2ShortFrameNameLookup[2]['text'] = 'TXX';
1980 $ID3v2ShortFrameNameLookup[2]['year'] = 'TYE';
1981 $ID3v2ShortFrameNameLookup[2]['unique_file_identifier'] = 'UFI';
1982 $ID3v2ShortFrameNameLookup[2]['unsychronised_lyric'] = 'ULT';
1983 $ID3v2ShortFrameNameLookup[2]['url_file'] = 'WAF';
1984 $ID3v2ShortFrameNameLookup[2]['url_artist'] = 'WAR';
1985 $ID3v2ShortFrameNameLookup[2]['url_source'] = 'WAS';
1986 $ID3v2ShortFrameNameLookup[2]['commercial_information'] = 'WCM';
1987 $ID3v2ShortFrameNameLookup[2]['copyright'] = 'WCP';
1988 $ID3v2ShortFrameNameLookup[2]['url_publisher'] = 'WPB';
1989 $ID3v2ShortFrameNameLookup[2]['url_user'] = 'WXX';
1990
1991 // The following are common to ID3v2.3 and ID3v2.4
1992 $ID3v2ShortFrameNameLookup[3]['audio_encryption'] = 'AENC';
1993 $ID3v2ShortFrameNameLookup[3]['attached_picture'] = 'APIC';
1994 $ID3v2ShortFrameNameLookup[3]['picture'] = 'APIC';
1995 $ID3v2ShortFrameNameLookup[3]['comment'] = 'COMM';
1996 $ID3v2ShortFrameNameLookup[3]['commercial_frame'] = 'COMR';
1997 $ID3v2ShortFrameNameLookup[3]['encryption_method_registration'] = 'ENCR';
1998 $ID3v2ShortFrameNameLookup[3]['event_timing_codes'] = 'ETCO';
1999 $ID3v2ShortFrameNameLookup[3]['general_encapsulated_object'] = 'GEOB';
2000 $ID3v2ShortFrameNameLookup[3]['group_identification_registration'] = 'GRID';
2001 $ID3v2ShortFrameNameLookup[3]['linked_information'] = 'LINK';
2002 $ID3v2ShortFrameNameLookup[3]['music_cd_identifier'] = 'MCDI';
2003 $ID3v2ShortFrameNameLookup[3]['mpeg_location_lookup_table'] = 'MLLT';
2004 $ID3v2ShortFrameNameLookup[3]['ownership_frame'] = 'OWNE';
2005 $ID3v2ShortFrameNameLookup[3]['play_counter'] = 'PCNT';
2006 $ID3v2ShortFrameNameLookup[3]['popularimeter'] = 'POPM';
2007 $ID3v2ShortFrameNameLookup[3]['position_synchronisation_frame'] = 'POSS';
2008 $ID3v2ShortFrameNameLookup[3]['private_frame'] = 'PRIV';
2009 $ID3v2ShortFrameNameLookup[3]['recommended_buffer_size'] = 'RBUF';
2010 $ID3v2ShortFrameNameLookup[3]['replay_gain_adjustment'] = 'RGAD';
2011 $ID3v2ShortFrameNameLookup[3]['reverb'] = 'RVRB';
2012 $ID3v2ShortFrameNameLookup[3]['synchronised_lyric'] = 'SYLT';
2013 $ID3v2ShortFrameNameLookup[3]['synchronised_tempo_codes'] = 'SYTC';
2014 $ID3v2ShortFrameNameLookup[3]['album'] = 'TALB';
2015 $ID3v2ShortFrameNameLookup[3]['beats_per_minute'] = 'TBPM';
2016 $ID3v2ShortFrameNameLookup[3]['bpm'] = 'TBPM';
2017 $ID3v2ShortFrameNameLookup[3]['part_of_a_compilation'] = 'TCMP';
2018 $ID3v2ShortFrameNameLookup[3]['composer'] = 'TCOM';
2019 $ID3v2ShortFrameNameLookup[3]['genre'] = 'TCON';
2020 $ID3v2ShortFrameNameLookup[3]['copyright_message'] = 'TCOP';
2021 $ID3v2ShortFrameNameLookup[3]['playlist_delay'] = 'TDLY';
2022 $ID3v2ShortFrameNameLookup[3]['encoded_by'] = 'TENC';
2023 $ID3v2ShortFrameNameLookup[3]['lyricist'] = 'TEXT';
2024 $ID3v2ShortFrameNameLookup[3]['file_type'] = 'TFLT';
2025 $ID3v2ShortFrameNameLookup[3]['content_group_description'] = 'TIT1';
2026 $ID3v2ShortFrameNameLookup[3]['title'] = 'TIT2';
2027 $ID3v2ShortFrameNameLookup[3]['subtitle'] = 'TIT3';
2028 $ID3v2ShortFrameNameLookup[3]['initial_key'] = 'TKEY';
2029 $ID3v2ShortFrameNameLookup[3]['language'] = 'TLAN';
2030 $ID3v2ShortFrameNameLookup[3]['length'] = 'TLEN';
2031 $ID3v2ShortFrameNameLookup[3]['media_type'] = 'TMED';
2032 $ID3v2ShortFrameNameLookup[3]['original_album'] = 'TOAL';
2033 $ID3v2ShortFrameNameLookup[3]['original_filename'] = 'TOFN';
2034 $ID3v2ShortFrameNameLookup[3]['original_lyricist'] = 'TOLY';
2035 $ID3v2ShortFrameNameLookup[3]['original_artist'] = 'TOPE';
2036 $ID3v2ShortFrameNameLookup[3]['file_owner'] = 'TOWN';
2037 $ID3v2ShortFrameNameLookup[3]['artist'] = 'TPE1';
2038 $ID3v2ShortFrameNameLookup[3]['band'] = 'TPE2';
2039 $ID3v2ShortFrameNameLookup[3]['conductor'] = 'TPE3';
2040 $ID3v2ShortFrameNameLookup[3]['remixer'] = 'TPE4';
2041 $ID3v2ShortFrameNameLookup[3]['part_of_a_set'] = 'TPOS';
2042 $ID3v2ShortFrameNameLookup[3]['publisher'] = 'TPUB';
2043 $ID3v2ShortFrameNameLookup[3]['tracknumber'] = 'TRCK';
2044 $ID3v2ShortFrameNameLookup[3]['track_number'] = 'TRCK';
2045 $ID3v2ShortFrameNameLookup[3]['internet_radio_station_name'] = 'TRSN';
2046 $ID3v2ShortFrameNameLookup[3]['internet_radio_station_owner'] = 'TRSO';
2047 $ID3v2ShortFrameNameLookup[3]['album_artist_sort_order'] = 'TSO2';
2048 $ID3v2ShortFrameNameLookup[3]['album_sort_order'] = 'TSOA';
2049 $ID3v2ShortFrameNameLookup[3]['composer_sort_order'] = 'TSOC';
2050 $ID3v2ShortFrameNameLookup[3]['performer_sort_order'] = 'TSOP';
2051 $ID3v2ShortFrameNameLookup[3]['title_sort_order'] = 'TSOT';
2052 $ID3v2ShortFrameNameLookup[3]['isrc'] = 'TSRC';
2053 $ID3v2ShortFrameNameLookup[3]['encoder_settings'] = 'TSSE';
2054 $ID3v2ShortFrameNameLookup[3]['text'] = 'TXXX';
2055 $ID3v2ShortFrameNameLookup[3]['unique_file_identifier'] = 'UFID';
2056 $ID3v2ShortFrameNameLookup[3]['terms_of_use'] = 'USER';
2057 $ID3v2ShortFrameNameLookup[3]['unsychronised_lyric'] = 'USLT';
2058 $ID3v2ShortFrameNameLookup[3]['commercial_information'] = 'WCOM';
2059 $ID3v2ShortFrameNameLookup[3]['copyright'] = 'WCOP';
2060 $ID3v2ShortFrameNameLookup[3]['url_file'] = 'WOAF';
2061 $ID3v2ShortFrameNameLookup[3]['url_artist'] = 'WOAR';
2062 $ID3v2ShortFrameNameLookup[3]['url_source'] = 'WOAS';
2063 $ID3v2ShortFrameNameLookup[3]['url_station'] = 'WORS';
2064 $ID3v2ShortFrameNameLookup[3]['url_payment'] = 'WPAY';
2065 $ID3v2ShortFrameNameLookup[3]['url_publisher'] = 'WPUB';
2066 $ID3v2ShortFrameNameLookup[3]['url_user'] = 'WXXX';
2067
2068 // The above are common to ID3v2.3 and ID3v2.4
2069 // so copy them to ID3v2.4 before adding specifics for 2.3 and 2.4
2070 $ID3v2ShortFrameNameLookup[4] = $ID3v2ShortFrameNameLookup[3];
2071
2072 // The following are unique to ID3v2.3
2073 $ID3v2ShortFrameNameLookup[3]['equalisation'] = 'EQUA';
2074 $ID3v2ShortFrameNameLookup[3]['involved_people_list'] = 'IPLS';
2075 $ID3v2ShortFrameNameLookup[3]['relative_volume_adjustment'] = 'RVAD';
2076 $ID3v2ShortFrameNameLookup[3]['date'] = 'TDAT';
2077 $ID3v2ShortFrameNameLookup[3]['time'] = 'TIME';
2078 $ID3v2ShortFrameNameLookup[3]['original_year'] = 'TORY';
2079 $ID3v2ShortFrameNameLookup[3]['recording_dates'] = 'TRDA';
2080 $ID3v2ShortFrameNameLookup[3]['size'] = 'TSIZ';
2081 $ID3v2ShortFrameNameLookup[3]['year'] = 'TYER';
2082
2083
2084 // The following are unique to ID3v2.4
2085 $ID3v2ShortFrameNameLookup[4]['audio_seek_point_index'] = 'ASPI';
2086 $ID3v2ShortFrameNameLookup[4]['equalisation'] = 'EQU2';
2087 $ID3v2ShortFrameNameLookup[4]['relative_volume_adjustment'] = 'RVA2';
2088 $ID3v2ShortFrameNameLookup[4]['seek_frame'] = 'SEEK';
2089 $ID3v2ShortFrameNameLookup[4]['signature_frame'] = 'SIGN';
2090 $ID3v2ShortFrameNameLookup[4]['encoding_time'] = 'TDEN';
2091 $ID3v2ShortFrameNameLookup[4]['original_release_time'] = 'TDOR';
2092 $ID3v2ShortFrameNameLookup[4]['recording_time'] = 'TDRC';
2093 $ID3v2ShortFrameNameLookup[4]['release_time'] = 'TDRL';
2094 $ID3v2ShortFrameNameLookup[4]['tagging_time'] = 'TDTG';
2095 $ID3v2ShortFrameNameLookup[4]['involved_people_list'] = 'TIPL';
2096 $ID3v2ShortFrameNameLookup[4]['musician_credits_list'] = 'TMCL';
2097 $ID3v2ShortFrameNameLookup[4]['mood'] = 'TMOO';
2098 $ID3v2ShortFrameNameLookup[4]['produced_notice'] = 'TPRO';
2099 $ID3v2ShortFrameNameLookup[4]['album_sort_order'] = 'TSOA';
2100 $ID3v2ShortFrameNameLookup[4]['performer_sort_order'] = 'TSOP';
2101 $ID3v2ShortFrameNameLookup[4]['title_sort_order'] = 'TSOT';
2102 $ID3v2ShortFrameNameLookup[4]['set_subtitle'] = 'TSST';
2103 }
2104 return (isset($ID3v2ShortFrameNameLookup[$majorversion][strtolower($long_description)]) ? $ID3v2ShortFrameNameLookup[$majorversion][strtolower($long_description)] : '');
2105
2106 }
2107
2108 }
2109
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