View file aiv2 AutoIndex/modules/getid3/write.lyrics3.php

<?php
class getid3_write_lyrics3
{
	var $filename;
	var $tag_data;
	var $warnings        = array(); 	var $errors          = array(); 
	function getid3_write_lyrics3() {
		return true;
	}

	function WriteLyrics3() {
		$this->errors[] = 'WriteLyrics3() not yet functional - cannot write Lyrics3';
		return false;
	}
	function DeleteLyrics3() {
		$getID3 = new getID3;
		$ThisFileInfo = $getID3->analyze($this->filename);
		if (isset($ThisFileInfo['lyrics3']['tag_offset_start']) && isset($ThisFileInfo['lyrics3']['tag_offset_end'])) {
			if (is_readable($this->filename) && is_writable($this->filename) && is_file($this->filename) && ($fp = fopen($this->filename, 'a+b'))) {

				flock($fp, LOCK_EX);
				$oldignoreuserabort = ignore_user_abort(true);

				fseek($fp, $ThisFileInfo['lyrics3']['tag_offset_end'], SEEK_SET);
				$DataAfterLyrics3 = '';
				if ($ThisFileInfo['filesize'] > $ThisFileInfo['lyrics3']['tag_offset_end']) {
					$DataAfterLyrics3 = fread($fp, $ThisFileInfo['filesize'] - $ThisFileInfo['lyrics3']['tag_offset_end']);
				}

				ftruncate($fp, $ThisFileInfo['lyrics3']['tag_offset_start']);

				if (!empty($DataAfterLyrics3)) {
					fseek($fp, $ThisFileInfo['lyrics3']['tag_offset_start'], SEEK_SET);
					fwrite($fp, $DataAfterLyrics3, strlen($DataAfterLyrics3));
				}

				flock($fp, LOCK_UN);
				fclose($fp);
				ignore_user_abort($oldignoreuserabort);

				return true;

			} else {
				$this->errors[] = 'Cannot fopen('.$this->filename.', "a+b")';
				return false;
			}
		}
		return true;
	}

}

?>