138 lines
5.5 KiB
PHP
Executable File
138 lines
5.5 KiB
PHP
Executable File
<?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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// also https://github.com/JamesHeinrich/getID3 //
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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.id3v1.php //
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// module for writing ID3v1 tags //
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// dependencies: module.tag.id3v1.php //
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// ///
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/////////////////////////////////////////////////////////////////
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getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v1.php', __FILE__, true);
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class getid3_write_id3v1
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{
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public $filename;
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public $filesize;
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public $tag_data;
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public $warnings = array(); // any non-critical errors will be stored here
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public $errors = array(); // any critical errors will be stored here
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public function __construct() {
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return true;
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}
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public function WriteID3v1() {
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// File MUST be writeable - CHMOD(646) at least
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if (!empty($this->filename) && is_readable($this->filename) && getID3::is_writable($this->filename) && is_file($this->filename)) {
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$this->setRealFileSize();
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if (($this->filesize <= 0) || !getid3_lib::intValueSupported($this->filesize)) {
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$this->errors[] = 'Unable to WriteID3v1('.$this->filename.') because filesize ('.$this->filesize.') is larger than '.round(PHP_INT_MAX / 1073741824).'GB';
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return false;
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}
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if ($fp_source = fopen($this->filename, 'r+b')) {
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fseek($fp_source, -128, SEEK_END);
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if (fread($fp_source, 3) == 'TAG') {
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fseek($fp_source, -128, SEEK_END); // overwrite existing ID3v1 tag
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} else {
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fseek($fp_source, 0, SEEK_END); // append new ID3v1 tag
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}
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$this->tag_data['track'] = (isset($this->tag_data['track']) ? $this->tag_data['track'] : (isset($this->tag_data['track_number']) ? $this->tag_data['track_number'] : (isset($this->tag_data['tracknumber']) ? $this->tag_data['tracknumber'] : '')));
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$new_id3v1_tag_data = getid3_id3v1::GenerateID3v1Tag(
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(isset($this->tag_data['title'] ) ? $this->tag_data['title'] : ''),
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(isset($this->tag_data['artist'] ) ? $this->tag_data['artist'] : ''),
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(isset($this->tag_data['album'] ) ? $this->tag_data['album'] : ''),
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(isset($this->tag_data['year'] ) ? $this->tag_data['year'] : ''),
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(isset($this->tag_data['genreid']) ? $this->tag_data['genreid'] : ''),
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(isset($this->tag_data['comment']) ? $this->tag_data['comment'] : ''),
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(isset($this->tag_data['track'] ) ? $this->tag_data['track'] : ''));
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fwrite($fp_source, $new_id3v1_tag_data, 128);
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fclose($fp_source);
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return true;
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} else {
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$this->errors[] = 'Could not fopen('.$this->filename.', "r+b")';
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return false;
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}
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}
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$this->errors[] = 'File is not writeable: '.$this->filename;
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return false;
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}
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public function FixID3v1Padding() {
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// ID3v1 data is supposed to be padded with NULL characters, but some taggers incorrectly use spaces
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// This function rewrites the ID3v1 tag with correct padding
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// Initialize getID3 engine
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$getID3 = new getID3;
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$getID3->option_tag_id3v2 = false;
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$getID3->option_tag_apetag = false;
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$getID3->option_tags_html = false;
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$getID3->option_extra_info = false;
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$getID3->option_tag_id3v1 = true;
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$ThisFileInfo = $getID3->analyze($this->filename);
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if (isset($ThisFileInfo['tags']['id3v1'])) {
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foreach ($ThisFileInfo['tags']['id3v1'] as $key => $value) {
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$id3v1data[$key] = implode(',', $value);
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}
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$this->tag_data = $id3v1data;
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return $this->WriteID3v1();
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}
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return false;
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}
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public function RemoveID3v1() {
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// File MUST be writeable - CHMOD(646) at least
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if (!empty($this->filename) && is_readable($this->filename) && getID3::is_writable($this->filename) && is_file($this->filename)) {
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$this->setRealFileSize();
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if (($this->filesize <= 0) || !getid3_lib::intValueSupported($this->filesize)) {
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$this->errors[] = 'Unable to RemoveID3v1('.$this->filename.') because filesize ('.$this->filesize.') is larger than '.round(PHP_INT_MAX / 1073741824).'GB';
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return false;
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}
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if ($fp_source = fopen($this->filename, 'r+b')) {
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fseek($fp_source, -128, SEEK_END);
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if (fread($fp_source, 3) == 'TAG') {
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ftruncate($fp_source, $this->filesize - 128);
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} else {
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// no ID3v1 tag to begin with - do nothing
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}
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fclose($fp_source);
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return true;
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} else {
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$this->errors[] = 'Could not fopen('.$this->filename.', "r+b")';
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}
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} else {
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$this->errors[] = $this->filename.' is not writeable';
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}
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return false;
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}
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public function setRealFileSize() {
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if (PHP_INT_MAX > 2147483647) {
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$this->filesize = filesize($this->filename);
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return true;
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}
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// 32-bit PHP will not return correct values for filesize() if file is >=2GB
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// but getID3->analyze() has workarounds to get actual filesize
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$getID3 = new getID3;
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$getID3->option_tag_id3v1 = false;
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$getID3->option_tag_id3v2 = false;
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$getID3->option_tag_apetag = false;
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$getID3->option_tags_html = false;
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$getID3->option_extra_info = false;
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$ThisFileInfo = $getID3->analyze($this->filename);
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$this->filesize = $ThisFileInfo['filesize'];
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return true;
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}
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}
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