Initial commit

1 files changed, 175 insertions, 0 deletions

diff --git a/includes/getid3/write.id3v1.php b/includes/getid3/write.id3v1.php
new file mode 100644
index 0000000..22c4677
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+++ b/includes/getid3/write.id3v1.php
@@ -0,0 +1,175 @@
+<?php
+
+/////////////////////////////////////////////////////////////////
+/// getID3() by James Heinrich <info@getid3.org>               //
+//  available at https://github.com/JamesHeinrich/getID3       //
+//            or https://www.getid3.org                        //
+//            or http://getid3.sourceforge.net                 //
+//  see readme.txt for more details                            //
+/////////////////////////////////////////////////////////////////
+//                                                             //
+// write.id3v1.php                                             //
+// module for writing ID3v1 tags                               //
+// dependencies: module.tag.id3v1.php                          //
+//                                                            ///
+/////////////////////////////////////////////////////////////////
+
+if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers
+	exit;
+}
+getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v1.php', __FILE__, true);
+
+class getid3_write_id3v1
+{
+	/**
+	 * @var string
+	 */
+	public $filename;
+
+	/**
+	 * @var int
+	 */
+	public $filesize;
+
+	/**
+	 * @var array
+	 */
+	public $tag_data;
+
+	/**
+	 * Any non-critical errors will be stored here.
+	 *
+	 * @var array
+	 */
+	public $warnings = array();
+
+	/**
+	 * Any critical errors will be stored here.
+	 *
+	 * @var array
+	 */
+	public $errors   = array();
+
+	public function __construct() {
+	}
+
+	/**
+	 * @return bool
+	 */
+	public function WriteID3v1() {
+		// File MUST be writeable - CHMOD(646) at least
+		if (!empty($this->filename) && is_readable($this->filename) && getID3::is_writable($this->filename) && is_file($this->filename)) {
+			$this->setRealFileSize();
+			if (($this->filesize <= 0) || !getid3_lib::intValueSupported($this->filesize)) {
+				$this->errors[] = 'Unable to WriteID3v1('.$this->filename.') because filesize ('.$this->filesize.') is larger than '.round(PHP_INT_MAX / 1073741824).'GB';
+				return false;
+			}
+			if ($fp_source = fopen($this->filename, 'r+b')) {
+				fseek($fp_source, -128, SEEK_END);
+				if (fread($fp_source, 3) == 'TAG') {
+					fseek($fp_source, -128, SEEK_END); // overwrite existing ID3v1 tag
+				} else {
+					fseek($fp_source, 0, SEEK_END);    // append new ID3v1 tag
+				}
+				$this->tag_data['track_number'] = (isset($this->tag_data['track_number']) ? $this->tag_data['track_number'] : '');
+
+				$new_id3v1_tag_data = getid3_id3v1::GenerateID3v1Tag(
+														(isset($this->tag_data['title']       ) ? $this->tag_data['title']        : ''),
+														(isset($this->tag_data['artist']      ) ? $this->tag_data['artist']       : ''),
+														(isset($this->tag_data['album']       ) ? $this->tag_data['album']        : ''),
+														(isset($this->tag_data['year']        ) ? $this->tag_data['year']         : ''),
+														(isset($this->tag_data['genreid']     ) ? $this->tag_data['genreid']      : ''),
+														(isset($this->tag_data['comment']     ) ? $this->tag_data['comment']      : ''),
+														(isset($this->tag_data['track_number']) ? $this->tag_data['track_number'] : ''));
+				fwrite($fp_source, $new_id3v1_tag_data, 128);
+				fclose($fp_source);
+				return true;
+
+			} else {
+				$this->errors[] = 'Could not fopen('.$this->filename.', "r+b")';
+				return false;
+			}
+		}
+		$this->errors[] = 'File is not writeable: '.$this->filename;
+		return false;
+	}
+
+	/**
+	 * @return bool
+	 */
+	public function FixID3v1Padding() {
+		// ID3v1 data is supposed to be padded with NULL characters, but some taggers incorrectly use spaces
+		// This function rewrites the ID3v1 tag with correct padding
+
+		// Initialize getID3 engine
+		$getID3 = new getID3;
+		$getID3->option_tag_id3v2  = false;
+		$getID3->option_tag_apetag = false;
+		$getID3->option_tags_html  = false;
+		$getID3->option_extra_info = false;
+		$getID3->option_tag_id3v1  = true;
+		$ThisFileInfo = $getID3->analyze($this->filename);
+		if (isset($ThisFileInfo['tags']['id3v1'])) {
+			$id3v1data = array();
+			foreach ($ThisFileInfo['tags']['id3v1'] as $key => $value) {
+				$id3v1data[$key] = implode(',', $value);
+			}
+			$this->tag_data = $id3v1data;
+			return $this->WriteID3v1();
+		}
+		return false;
+	}
+
+	/**
+	 * @return bool
+	 */
+	public function RemoveID3v1() {
+		// File MUST be writeable - CHMOD(646) at least
+		if (!empty($this->filename) && is_readable($this->filename) && getID3::is_writable($this->filename) && is_file($this->filename)) {
+			$this->setRealFileSize();
+			if (($this->filesize <= 0) || !getid3_lib::intValueSupported($this->filesize)) {
+				$this->errors[] = 'Unable to RemoveID3v1('.$this->filename.') because filesize ('.$this->filesize.') is larger than '.round(PHP_INT_MAX / 1073741824).'GB';
+				return false;
+			}
+			if ($fp_source = fopen($this->filename, 'r+b')) {
+
+				fseek($fp_source, -128, SEEK_END);
+				if (fread($fp_source, 3) == 'TAG') {
+					ftruncate($fp_source, $this->filesize - 128);
+				} else {
+					// no ID3v1 tag to begin with - do nothing
+				}
+				fclose($fp_source);
+				return true;
+
+			} else {
+				$this->errors[] = 'Could not fopen('.$this->filename.', "r+b")';
+			}
+		} else {
+			$this->errors[] = $this->filename.' is not writeable';
+		}
+		return false;
+	}
+
+	/**
+	 * @return bool
+	 */
+	public function setRealFileSize() {
+		if (PHP_INT_MAX > 2147483647) {
+			$this->filesize = filesize($this->filename);
+			return true;
+		}
+		// 32-bit PHP will not return correct values for filesize() if file is >=2GB
+		// but getID3->analyze() has workarounds to get actual filesize
+		$getID3 = new getID3;
+		$getID3->option_tag_id3v1  = false;
+		$getID3->option_tag_id3v2  = false;
+		$getID3->option_tag_apetag = false;
+		$getID3->option_tags_html  = false;
+		$getID3->option_extra_info = false;
+		$ThisFileInfo = $getID3->analyze($this->filename);
+		$this->filesize = $ThisFileInfo['filesize'];
+		return true;
+	}
+
+}