121 lines
4.5 KiB
PHP
121 lines
4.5 KiB
PHP
<?php
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/////////////////////////////////////////////////////////////////
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/// getID3() by James Heinrich <info@getid3.org> //
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// available at http://getid3.sourceforge.net //
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// or http://www.getid3.org //
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/////////////////////////////////////////////////////////////////
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// See readme.txt for more details //
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/////////////////////////////////////////////////////////////////
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// //
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// write.vorbiscomment.php //
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// module for writing VorbisComment tags //
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// dependencies: /helperapps/vorbiscomment.exe //
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// ///
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/////////////////////////////////////////////////////////////////
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class getid3_write_vorbiscomment
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{
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var $filename;
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var $tag_data;
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var $warnings = array(); // any non-critical errors will be stored here
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var $errors = array(); // any critical errors will be stored here
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function getid3_write_vorbiscomment() {
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return true;
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}
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function WriteVorbisComment() {
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if (preg_match('#(1|ON)#i', ini_get('safe_mode'))) {
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$this->errors[] = 'PHP running in Safe Mode (backtick operator not available) - cannot call vorbiscomment, tags not written';
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return false;
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}
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// Create file with new comments
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$tempcommentsfilename = tempnam(GETID3_TEMP_DIR, 'getID3');
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if (is_writable($tempcommentsfilename) && is_file($tempcommentsfilename) && ($fpcomments = fopen($tempcommentsfilename, 'wb'))) {
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foreach ($this->tag_data as $key => $value) {
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foreach ($value as $commentdata) {
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fwrite($fpcomments, $this->CleanVorbisCommentName($key).'='.$commentdata."\n");
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}
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}
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fclose($fpcomments);
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} else {
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$this->errors[] = 'failed to open temporary tags file "'.$tempcommentsfilename.'", tags not written';
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return false;
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}
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$oldignoreuserabort = ignore_user_abort(true);
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if (GETID3_OS_ISWINDOWS) {
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if (file_exists(GETID3_HELPERAPPSDIR.'vorbiscomment.exe')) {
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//$commandline = '"'.GETID3_HELPERAPPSDIR.'vorbiscomment.exe" -w --raw -c "'.$tempcommentsfilename.'" "'.str_replace('/', '\\', $this->filename).'"';
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// vorbiscomment works fine if you copy-paste the above commandline into a command prompt,
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// but refuses to work with `backtick` if there are "doublequotes" present around BOTH
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// the metaflac pathname and the target filename. For whatever reason...??
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// The solution is simply ensure that the metaflac pathname has no spaces,
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// and therefore does not need to be quoted
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// On top of that, if error messages are not always captured properly under Windows
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// To at least see if there was a problem, compare file modification timestamps before and after writing
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clearstatcache();
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$timestampbeforewriting = filemtime($this->filename);
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$commandline = GETID3_HELPERAPPSDIR.'vorbiscomment.exe -w --raw -c "'.$tempcommentsfilename.'" "'.$this->filename.'" 2>&1';
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$VorbiscommentError = `$commandline`;
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if (empty($VorbiscommentError)) {
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clearstatcache();
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if ($timestampbeforewriting == filemtime($this->filename)) {
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$VorbiscommentError = 'File modification timestamp has not changed - it looks like the tags were not written';
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}
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}
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} else {
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$VorbiscommentError = 'vorbiscomment.exe not found in '.GETID3_HELPERAPPSDIR;
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}
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} else {
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$commandline = 'vorbiscomment -w --raw -c "'.$tempcommentsfilename.'" "'.$this->filename.'" 2>&1';
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$VorbiscommentError = `$commandline`;
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}
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// Remove temporary comments file
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unlink($tempcommentsfilename);
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ignore_user_abort($oldignoreuserabort);
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if (!empty($VorbiscommentError)) {
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$this->errors[] = 'system call to vorbiscomment failed with message: '."\n\n".$VorbiscommentError;
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return false;
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}
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return true;
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}
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function DeleteVorbisComment() {
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$this->tag_data = array(array());
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return $this->WriteVorbisComment();
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}
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function CleanVorbisCommentName($originalcommentname) {
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// A case-insensitive field name that may consist of ASCII 0x20 through 0x7D, 0x3D ('=') excluded.
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// ASCII 0x41 through 0x5A inclusive (A-Z) is to be considered equivalent to ASCII 0x61 through
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// 0x7A inclusive (a-z).
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// replace invalid chars with a space, return uppercase text
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// Thanks Chris Bolt <chris-getid3<64>bolt*cx> for improving this function
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// note: *reg_replace() replaces nulls with empty string (not space)
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return strtoupper(preg_replace('#[^ -<>-}]#', ' ', str_replace("\x00", ' ', $originalcommentname)));
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}
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}
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?>
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