From e32f9e0354f159164651d4c7fb697ebe02ad7ea9 Mon Sep 17 00:00:00 2001
From: Klaus Weidenbach <Klaus.Weidenbach@gmx.net>
Date: Mon, 20 Nov 2017 20:14:04 +0100
Subject: Add ID3Parser library.

https://github.com/LukasReschke/ID3Parser.git
---
 .../id3parser/src/getID3/getid3_handler.php        | 145 +++++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100644 vendor/lukasreschke/id3parser/src/getID3/getid3_handler.php

(limited to 'vendor/lukasreschke/id3parser/src/getID3/getid3_handler.php')

diff --git a/vendor/lukasreschke/id3parser/src/getID3/getid3_handler.php b/vendor/lukasreschke/id3parser/src/getID3/getid3_handler.php
new file mode 100644
index 000000000..654593349
--- /dev/null
+++ b/vendor/lukasreschke/id3parser/src/getID3/getid3_handler.php
@@ -0,0 +1,145 @@
+<?php
+/////////////////////////////////////////////////////////////////
+/// getID3() by James Heinrich <info@getid3.org>               //
+//  available at http://getid3.sourceforge.net                 //
+//            or http://www.getid3.org                         //
+//          also https://github.com/JamesHeinrich/getID3       //
+/////////////////////////////////////////////////////////////////
+
+namespace ID3Parser\getID3;
+
+abstract class getid3_handler {
+
+	/**
+	 * @var getID3
+	 */
+	protected $getid3;                       // pointer
+
+	protected $data_string_flag     = false; // analyzing filepointer or string
+	protected $data_string          = '';    // string to analyze
+	protected $data_string_position = 0;     // seek position in string
+	protected $data_string_length   = 0;     // string length
+
+	private $dependency_to = null;
+
+
+	public function __construct(getID3 $getid3, $call_module=null) {
+		$this->getid3 = $getid3;
+
+		if ($call_module) {
+			$this->dependency_to = str_replace('getid3_', '', $call_module);
+		}
+	}
+
+
+	// Analyze from file pointer
+	abstract public function Analyze();
+
+
+	// Analyze from string instead
+	public function AnalyzeString($string) {
+		// Enter string mode
+		$this->setStringMode($string);
+
+		// Save info
+		$saved_avdataoffset = $this->getid3->info['avdataoffset'];
+		$saved_avdataend    = $this->getid3->info['avdataend'];
+		$saved_filesize     = (isset($this->getid3->info['filesize']) ? $this->getid3->info['filesize'] : null); // may be not set if called as dependency without openfile() call
+
+		// Reset some info
+		$this->getid3->info['avdataoffset'] = 0;
+		$this->getid3->info['avdataend']    = $this->getid3->info['filesize'] = $this->data_string_length;
+
+		// Analyze
+		$this->Analyze();
+
+		// Restore some info
+		$this->getid3->info['avdataoffset'] = $saved_avdataoffset;
+		$this->getid3->info['avdataend']    = $saved_avdataend;
+		$this->getid3->info['filesize']     = $saved_filesize;
+
+		// Exit string mode
+		$this->data_string_flag = false;
+	}
+
+	public function setStringMode($string) {
+		$this->data_string_flag   = true;
+		$this->data_string        = $string;
+		$this->data_string_length = strlen($string);
+	}
+
+	protected function ftell() {
+		if ($this->data_string_flag) {
+			return $this->data_string_position;
+		}
+		return ftell($this->getid3->fp);
+	}
+
+	protected function fread($bytes) {
+		if ($this->data_string_flag) {
+			$this->data_string_position += $bytes;
+			return substr($this->data_string, $this->data_string_position - $bytes, $bytes);
+		}
+		$pos = $this->ftell() + $bytes;
+		if (!getid3_lib::intValueSupported($pos)) {
+			throw new getid3_exception('cannot fread('.$bytes.' from '.$this->ftell().') because beyond PHP filesystem limit', 10);
+		}
+		return fread($this->getid3->fp, $bytes);
+	}
+
+	protected function fseek($bytes, $whence=SEEK_SET) {
+		if ($this->data_string_flag) {
+			switch ($whence) {
+				case SEEK_SET:
+					$this->data_string_position = $bytes;
+					break;
+
+				case SEEK_CUR:
+					$this->data_string_position += $bytes;
+					break;
+
+				case SEEK_END:
+					$this->data_string_position = $this->data_string_length + $bytes;
+					break;
+			}
+			return 0;
+		} else {
+			$pos = $bytes;
+			if ($whence == SEEK_CUR) {
+				$pos = $this->ftell() + $bytes;
+			} elseif ($whence == SEEK_END) {
+				$pos = $this->getid3->info['filesize'] + $bytes;
+			}
+			if (!getid3_lib::intValueSupported($pos)) {
+				throw new getid3_exception('cannot fseek('.$pos.') because beyond PHP filesystem limit', 10);
+			}
+		}
+		return fseek($this->getid3->fp, $bytes, $whence);
+	}
+
+	protected function feof() {
+		if ($this->data_string_flag) {
+			return $this->data_string_position >= $this->data_string_length;
+		}
+		return feof($this->getid3->fp);
+	}
+
+	final protected function isDependencyFor($module) {
+		return $this->dependency_to == $module;
+	}
+
+	protected function error($text) {
+		$this->getid3->info['error'][] = $text;
+
+		return false;
+	}
+
+	protected function warning($text) {
+		return $this->getid3->warning($text);
+	}
+
+	protected function notice($text) {
+		// does nothing for now
+	}
+}
+
-- 
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