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<?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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// // |
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// getid3.lib.php - part of getID3() // |
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// See readme.txt for more details // |
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// /// |
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///////////////////////////////////////////////////////////////// |
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class getid3_lib |
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{ |
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public static function PrintHexBytes($string, $hex=true, $spaces=true, $htmlencoding='UTF-8') { |
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$returnstring = ''; |
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for ($i = 0; $i < strlen($string); $i++) { |
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if ($hex) { |
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$returnstring .= str_pad(dechex(ord($string{$i})), 2, '0', STR_PAD_LEFT); |
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} else { |
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$returnstring .= ' '.(preg_match("#[\x20-\x7E]#", $string{$i}) ? $string{$i} : 'ยค'); |
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} |
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if ($spaces) { |
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$returnstring .= ' '; |
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} |
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} |
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if (!empty($htmlencoding)) { |
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if ($htmlencoding === true) { |
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$htmlencoding = 'UTF-8'; // prior to getID3 v1.9.0 the function's 4th parameter was boolean |
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} |
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$returnstring = htmlentities($returnstring, ENT_QUOTES, $htmlencoding); |
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} |
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return $returnstring; |
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} |
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public static function trunc($floatnumber) { |
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// truncates a floating-point number at the decimal point |
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// returns int (if possible, otherwise float) |
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if ($floatnumber >= 1) { |
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$truncatednumber = floor($floatnumber); |
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} elseif ($floatnumber <= -1) { |
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$truncatednumber = ceil($floatnumber); |
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} else { |
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$truncatednumber = 0; |
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} |
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if (self::intValueSupported($truncatednumber)) { |
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$truncatednumber = (int) $truncatednumber; |
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} |
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return $truncatednumber; |
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} |
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public static function safe_inc(&$variable, $increment=1) { |
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if (isset($variable)) { |
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$variable += $increment; |
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} else { |
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$variable = $increment; |
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} |
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return true; |
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} |
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public static function CastAsInt($floatnum) { |
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// convert to float if not already |
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$floatnum = (float) $floatnum; |
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// convert a float to type int, only if possible |
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if (self::trunc($floatnum) == $floatnum) { |
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// it's not floating point |
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if (self::intValueSupported($floatnum)) { |
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// it's within int range |
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$floatnum = (int) $floatnum; |
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} |
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} |
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return $floatnum; |
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} |
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public static function intValueSupported($num) { |
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// check if integers are 64-bit |
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static $hasINT64 = null; |
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if ($hasINT64 === null) { // 10x faster than is_null() |
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$hasINT64 = is_int(pow(2, 31)); // 32-bit int are limited to (2^31)-1 |
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if (!$hasINT64 && !defined('PHP_INT_MIN')) { |
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define('PHP_INT_MIN', ~PHP_INT_MAX); |
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} |
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} |
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// if integers are 64-bit - no other check required |
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if ($hasINT64 || (($num <= PHP_INT_MAX) && ($num >= PHP_INT_MIN))) { |
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return true; |
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} |
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return false; |
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} |
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public static function DecimalizeFraction($fraction) { |
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list($numerator, $denominator) = explode('/', $fraction); |
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return $numerator / ($denominator ? $denominator : 1); |
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} |
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public static function DecimalBinary2Float($binarynumerator) { |
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$numerator = self::Bin2Dec($binarynumerator); |
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$denominator = self::Bin2Dec('1'.str_repeat('0', strlen($binarynumerator))); |
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return ($numerator / $denominator); |
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} |
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public static function NormalizeBinaryPoint($binarypointnumber, $maxbits=52) { |
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// http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/binary.html |
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if (strpos($binarypointnumber, '.') === false) { |
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$binarypointnumber = '0.'.$binarypointnumber; |
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} elseif ($binarypointnumber{0} == '.') { |
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$binarypointnumber = '0'.$binarypointnumber; |
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} |
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$exponent = 0; |
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while (($binarypointnumber{0} != '1') || (substr($binarypointnumber, 1, 1) != '.')) { |
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if (substr($binarypointnumber, 1, 1) == '.') { |
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$exponent--; |
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$binarypointnumber = substr($binarypointnumber, 2, 1).'.'.substr($binarypointnumber, 3); |
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} else { |
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$pointpos = strpos($binarypointnumber, '.'); |
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$exponent += ($pointpos - 1); |
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$binarypointnumber = str_replace('.', '', $binarypointnumber); |
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$binarypointnumber = $binarypointnumber{0}.'.'.substr($binarypointnumber, 1); |
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} |
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} |
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$binarypointnumber = str_pad(substr($binarypointnumber, 0, $maxbits + 2), $maxbits + 2, '0', STR_PAD_RIGHT); |
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return array('normalized'=>$binarypointnumber, 'exponent'=>(int) $exponent); |
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} |
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public static function Float2BinaryDecimal($floatvalue) { |
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// http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/binary.html |
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$maxbits = 128; // to how many bits of precision should the calculations be taken? |
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$intpart = self::trunc($floatvalue); |
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$floatpart = abs($floatvalue - $intpart); |
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$pointbitstring = ''; |
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while (($floatpart != 0) && (strlen($pointbitstring) < $maxbits)) { |
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$floatpart *= 2; |
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$pointbitstring .= (string) self::trunc($floatpart); |
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$floatpart -= self::trunc($floatpart); |
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} |
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$binarypointnumber = decbin($intpart).'.'.$pointbitstring; |
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return $binarypointnumber; |
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} |
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public static function Float2String($floatvalue, $bits) { |
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// http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee-expl.html |
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switch ($bits) { |
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case 32: |
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$exponentbits = 8; |
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$fractionbits = 23; |
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break; |
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case 64: |
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$exponentbits = 11; |
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$fractionbits = 52; |
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break; |
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default: |
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return false; |
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break; |
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} |
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if ($floatvalue >= 0) { |
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$signbit = '0'; |
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} else { |
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$signbit = '1'; |
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} |
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$normalizedbinary = self::NormalizeBinaryPoint(self::Float2BinaryDecimal($floatvalue), $fractionbits); |
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$biasedexponent = pow(2, $exponentbits - 1) - 1 + $normalizedbinary['exponent']; // (127 or 1023) +/- exponent |
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$exponentbitstring = str_pad(decbin($biasedexponent), $exponentbits, '0', STR_PAD_LEFT); |
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$fractionbitstring = str_pad(substr($normalizedbinary['normalized'], 2), $fractionbits, '0', STR_PAD_RIGHT); |
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return self::BigEndian2String(self::Bin2Dec($signbit.$exponentbitstring.$fractionbitstring), $bits % 8, false); |
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} |
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public static function LittleEndian2Float($byteword) { |
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return self::BigEndian2Float(strrev($byteword)); |
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} |
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public static function BigEndian2Float($byteword) { |
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// ANSI/IEEE Standard 754-1985, Standard for Binary Floating Point Arithmetic |
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// http://www.psc.edu/general/software/packages/ieee/ieee.html |
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// http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee.html |
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$bitword = self::BigEndian2Bin($byteword); |
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if (!$bitword) { |
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return 0; |
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} |
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$signbit = $bitword{0}; |
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switch (strlen($byteword) * 8) { |
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case 32: |
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$exponentbits = 8; |
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$fractionbits = 23; |
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break; |
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case 64: |
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$exponentbits = 11; |
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$fractionbits = 52; |
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break; |
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case 80: |
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// 80-bit Apple SANE format |
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// http://www.mactech.com/articles/mactech/Vol.06/06.01/SANENormalized/ |
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$exponentstring = substr($bitword, 1, 15); |
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$isnormalized = intval($bitword{16}); |
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$fractionstring = substr($bitword, 17, 63); |
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$exponent = pow(2, self::Bin2Dec($exponentstring) - 16383); |
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$fraction = $isnormalized + self::DecimalBinary2Float($fractionstring); |
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$floatvalue = $exponent * $fraction; |
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if ($signbit == '1') { |
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$floatvalue *= -1; |
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} |
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return $floatvalue; |
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break; |
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default: |
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return false; |
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break; |
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} |
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$exponentstring = substr($bitword, 1, $exponentbits); |
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$fractionstring = substr($bitword, $exponentbits + 1, $fractionbits); |
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$exponent = self::Bin2Dec($exponentstring); |
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$fraction = self::Bin2Dec($fractionstring); |
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if (($exponent == (pow(2, $exponentbits) - 1)) && ($fraction != 0)) { |
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// Not a Number |
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$floatvalue = false; |
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} elseif (($exponent == (pow(2, $exponentbits) - 1)) && ($fraction == 0)) { |
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if ($signbit == '1') { |
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$floatvalue = '-infinity'; |
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} else { |
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$floatvalue = '+infinity'; |
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} |
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} elseif (($exponent == 0) && ($fraction == 0)) { |
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if ($signbit == '1') { |
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$floatvalue = -0; |
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} else { |
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$floatvalue = 0; |
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} |
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$floatvalue = ($signbit ? 0 : -0); |
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} elseif (($exponent == 0) && ($fraction != 0)) { |
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// These are 'unnormalized' values |
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$floatvalue = pow(2, (-1 * (pow(2, $exponentbits - 1) - 2))) * self::DecimalBinary2Float($fractionstring); |
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if ($signbit == '1') { |
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$floatvalue *= -1; |
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} |
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} elseif ($exponent != 0) { |
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$floatvalue = pow(2, ($exponent - (pow(2, $exponentbits - 1) - 1))) * (1 + self::DecimalBinary2Float($fractionstring)); |
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if ($signbit == '1') { |
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$floatvalue *= -1; |
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} |
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} |
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return (float) $floatvalue; |
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} |
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public static function BigEndian2Int($byteword, $synchsafe=false, $signed=false) { |
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$intvalue = 0; |
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$bytewordlen = strlen($byteword); |
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if ($bytewordlen == 0) { |
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return false; |
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} |
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for ($i = 0; $i < $bytewordlen; $i++) { |
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if ($synchsafe) { // disregard MSB, effectively 7-bit bytes |
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//$intvalue = $intvalue | (ord($byteword{$i}) & 0x7F) << (($bytewordlen - 1 - $i) * 7); // faster, but runs into problems past 2^31 on 32-bit systems |
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$intvalue += (ord($byteword{$i}) & 0x7F) * pow(2, ($bytewordlen - 1 - $i) * 7); |
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} else { |
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$intvalue += ord($byteword{$i}) * pow(256, ($bytewordlen - 1 - $i)); |
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} |
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} |
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if ($signed && !$synchsafe) { |
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// synchsafe ints are not allowed to be signed |
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if ($bytewordlen <= PHP_INT_SIZE) { |
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$signMaskBit = 0x80 << (8 * ($bytewordlen - 1)); |
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if ($intvalue & $signMaskBit) { |
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$intvalue = 0 - ($intvalue & ($signMaskBit - 1)); |
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} |
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} else { |
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throw new Exception('ERROR: Cannot have signed integers larger than '.(8 * PHP_INT_SIZE).'-bits ('.strlen($byteword).') in self::BigEndian2Int()'); |
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break; |
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} |
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} |
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return self::CastAsInt($intvalue); |
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} |
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291 |
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public static function LittleEndian2Int($byteword, $signed=false) { |
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return self::BigEndian2Int(strrev($byteword), false, $signed); |
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} |
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295 |
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296 |
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297 |
public static function BigEndian2Bin($byteword) { |
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$binvalue = ''; |
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$bytewordlen = strlen($byteword); |
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for ($i = 0; $i < $bytewordlen; $i++) { |
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$binvalue .= str_pad(decbin(ord($byteword{$i})), 8, '0', STR_PAD_LEFT); |
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302 |
} |
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return $binvalue; |
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304 |
} |
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305 |
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306 |
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public static function BigEndian2String($number, $minbytes=1, $synchsafe=false, $signed=false) { |
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if ($number < 0) { |
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throw new Exception('ERROR: self::BigEndian2String() does not support negative numbers'); |
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310 |
} |
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$maskbyte = (($synchsafe || $signed) ? 0x7F : 0xFF); |
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$intstring = ''; |
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if ($signed) { |
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314 |
if ($minbytes > PHP_INT_SIZE) { |
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throw new Exception('ERROR: Cannot have signed integers larger than '.(8 * PHP_INT_SIZE).'-bits in self::BigEndian2String()'); |
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316 |
} |
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317 |
$number = $number & (0x80 << (8 * ($minbytes - 1))); |
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318 |
} |
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319 |
while ($number != 0) { |
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320 |
$quotient = ($number / ($maskbyte + 1)); |
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321 |
$intstring = chr(ceil(($quotient - floor($quotient)) * $maskbyte)).$intstring; |
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322 |
$number = floor($quotient); |
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323 |
} |
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324 |
return str_pad($intstring, $minbytes, "\x00", STR_PAD_LEFT); |
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325 |
} |
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326 |
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327 |
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328 |
public static function Dec2Bin($number) { |
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329 |
while ($number >= 256) { |
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330 |
$bytes[] = (($number / 256) - (floor($number / 256))) * 256; |
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331 |
$number = floor($number / 256); |
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332 |
} |
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333 |
$bytes[] = $number; |
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$binstring = ''; |
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335 |
for ($i = 0; $i < count($bytes); $i++) { |
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336 |
$binstring = (($i == count($bytes) - 1) ? decbin($bytes[$i]) : str_pad(decbin($bytes[$i]), 8, '0', STR_PAD_LEFT)).$binstring; |
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337 |
} |
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338 |
return $binstring; |
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339 |
} |
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340 |
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341 |
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342 |
public static function Bin2Dec($binstring, $signed=false) { |
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343 |
$signmult = 1; |
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344 |
if ($signed) { |
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345 |
if ($binstring{0} == '1') { |
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346 |
$signmult = -1; |
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347 |
} |
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348 |
$binstring = substr($binstring, 1); |
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349 |
} |
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350 |
$decvalue = 0; |
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351 |
for ($i = 0; $i < strlen($binstring); $i++) { |
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352 |
$decvalue += ((int) substr($binstring, strlen($binstring) - $i - 1, 1)) * pow(2, $i); |
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353 |
} |
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354 |
return self::CastAsInt($decvalue * $signmult); |
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355 |
} |
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356 |
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357 |
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358 |
public static function Bin2String($binstring) { |
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359 |
// return 'hi' for input of '0110100001101001' |
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|
360 |
$string = ''; |
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361 |
$binstringreversed = strrev($binstring); |
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362 |
for ($i = 0; $i < strlen($binstringreversed); $i += 8) { |
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363 |
$string = chr(self::Bin2Dec(strrev(substr($binstringreversed, $i, 8)))).$string; |
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|
364 |
} |
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365 |
return $string; |
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366 |
} |
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367 |
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368 |
|
|
|
369 |
public static function LittleEndian2String($number, $minbytes=1, $synchsafe=false) { |
|
|
370 |
$intstring = ''; |
|
|
371 |
while ($number > 0) { |
|
|
372 |
if ($synchsafe) { |
|
|
373 |
$intstring = $intstring.chr($number & 127); |
|
|
374 |
$number >>= 7; |
|
|
375 |
} else { |
|
|
376 |
$intstring = $intstring.chr($number & 255); |
|
|
377 |
$number >>= 8; |
|
|
378 |
} |
|
|
379 |
} |
|
|
380 |
return str_pad($intstring, $minbytes, "\x00", STR_PAD_RIGHT); |
|
|
381 |
} |
|
|
382 |
|
|
|
383 |
|
|
|
384 |
public static function array_merge_clobber($array1, $array2) { |
|
|
385 |
// written by kcรhireability*com |
|
|
386 |
// taken from http://www.php.net/manual/en/function.array-merge-recursive.php |
|
|
387 |
if (!is_array($array1) || !is_array($array2)) { |
|
|
388 |
return false; |
|
|
389 |
} |
|
|
390 |
$newarray = $array1; |
|
|
391 |
foreach ($array2 as $key => $val) { |
|
|
392 |
if (is_array($val) && isset($newarray[$key]) && is_array($newarray[$key])) { |
|
|
393 |
$newarray[$key] = self::array_merge_clobber($newarray[$key], $val); |
|
|
394 |
} else { |
|
|
395 |
$newarray[$key] = $val; |
|
|
396 |
} |
|
|
397 |
} |
|
|
398 |
return $newarray; |
|
|
399 |
} |
|
|
400 |
|
|
|
401 |
|
|
|
402 |
public static function array_merge_noclobber($array1, $array2) { |
|
|
403 |
if (!is_array($array1) || !is_array($array2)) { |
|
|
404 |
return false; |
|
|
405 |
} |
|
|
406 |
$newarray = $array1; |
|
|
407 |
foreach ($array2 as $key => $val) { |
|
|
408 |
if (is_array($val) && isset($newarray[$key]) && is_array($newarray[$key])) { |
|
|
409 |
$newarray[$key] = self::array_merge_noclobber($newarray[$key], $val); |
|
|
410 |
} elseif (!isset($newarray[$key])) { |
|
|
411 |
$newarray[$key] = $val; |
|
|
412 |
} |
|
|
413 |
} |
|
|
414 |
return $newarray; |
|
|
415 |
} |
|
|
416 |
|
|
|
417 |
|
|
|
418 |
public static function ksort_recursive(&$theArray) { |
|
|
419 |
ksort($theArray); |
|
|
420 |
foreach ($theArray as $key => $value) { |
|
|
421 |
if (is_array($value)) { |
|
|
422 |
self::ksort_recursive($theArray[$key]); |
|
|
423 |
} |
|
|
424 |
} |
|
|
425 |
return true; |
|
|
426 |
} |
|
|
427 |
|
|
|
428 |
public static function fileextension($filename, $numextensions=1) { |
|
|
429 |
if (strstr($filename, '.')) { |
|
|
430 |
$reversedfilename = strrev($filename); |
|
|
431 |
$offset = 0; |
|
|
432 |
for ($i = 0; $i < $numextensions; $i++) { |
|
|
433 |
$offset = strpos($reversedfilename, '.', $offset + 1); |
|
|
434 |
if ($offset === false) { |
|
|
435 |
return ''; |
|
|
436 |
} |
|
|
437 |
} |
|
|
438 |
return strrev(substr($reversedfilename, 0, $offset)); |
|
|
439 |
} |
|
|
440 |
return ''; |
|
|
441 |
} |
|
|
442 |
|
|
|
443 |
|
|
|
444 |
public static function PlaytimeString($seconds) { |
|
|
445 |
$sign = (($seconds < 0) ? '-' : ''); |
|
|
446 |
$seconds = round(abs($seconds)); |
|
|
447 |
$H = (int) floor( $seconds / 3600); |
|
|
448 |
$M = (int) floor(($seconds - (3600 * $H) ) / 60); |
|
|
449 |
$S = (int) round( $seconds - (3600 * $H) - (60 * $M) ); |
|
|
450 |
return $sign.($H ? $H.':' : '').($H ? str_pad($M, 2, '0', STR_PAD_LEFT) : intval($M)).':'.str_pad($S, 2, 0, STR_PAD_LEFT); |
|
|
451 |
} |
|
|
452 |
|
|
|
453 |
|
|
|
454 |
public static function DateMac2Unix($macdate) { |
|
|
455 |
// Macintosh timestamp: seconds since 00:00h January 1, 1904 |
|
|
456 |
// UNIX timestamp: seconds since 00:00h January 1, 1970 |
|
|
457 |
return self::CastAsInt($macdate - 2082844800); |
|
|
458 |
} |
|
|
459 |
|
|
|
460 |
|
|
|
461 |
public static function FixedPoint8_8($rawdata) { |
|
|
462 |
return self::BigEndian2Int(substr($rawdata, 0, 1)) + (float) (self::BigEndian2Int(substr($rawdata, 1, 1)) / pow(2, 8)); |
|
|
463 |
} |
|
|
464 |
|
|
|
465 |
|
|
|
466 |
public static function FixedPoint16_16($rawdata) { |
|
|
467 |
return self::BigEndian2Int(substr($rawdata, 0, 2)) + (float) (self::BigEndian2Int(substr($rawdata, 2, 2)) / pow(2, 16)); |
|
|
468 |
} |
|
|
469 |
|
|
|
470 |
|
|
|
471 |
public static function FixedPoint2_30($rawdata) { |
|
|
472 |
$binarystring = self::BigEndian2Bin($rawdata); |
|
|
473 |
return self::Bin2Dec(substr($binarystring, 0, 2)) + (float) (self::Bin2Dec(substr($binarystring, 2, 30)) / pow(2, 30)); |
|
|
474 |
} |
|
|
475 |
|
|
|
476 |
|
|
|
477 |
public static function CreateDeepArray($ArrayPath, $Separator, $Value) { |
|
|
478 |
// assigns $Value to a nested array path: |
|
|
479 |
// $foo = self::CreateDeepArray('/path/to/my', '/', 'file.txt') |
|
|
480 |
// is the same as: |
|
|
481 |
// $foo = array('path'=>array('to'=>'array('my'=>array('file.txt')))); |
|
|
482 |
// or |
|
|
483 |
// $foo['path']['to']['my'] = 'file.txt'; |
|
|
484 |
$ArrayPath = ltrim($ArrayPath, $Separator); |
|
|
485 |
if (($pos = strpos($ArrayPath, $Separator)) !== false) { |
|
|
486 |
$ReturnedArray[substr($ArrayPath, 0, $pos)] = self::CreateDeepArray(substr($ArrayPath, $pos + 1), $Separator, $Value); |
|
|
487 |
} else { |
|
|
488 |
$ReturnedArray[$ArrayPath] = $Value; |
|
|
489 |
} |
|
|
490 |
return $ReturnedArray; |
|
|
491 |
} |
|
|
492 |
|
|
|
493 |
public static function array_max($arraydata, $returnkey=false) { |
|
|
494 |
$maxvalue = false; |
|
|
495 |
$maxkey = false; |
|
|
496 |
foreach ($arraydata as $key => $value) { |
|
|
497 |
if (!is_array($value)) { |
|
|
498 |
if ($value > $maxvalue) { |
|
|
499 |
$maxvalue = $value; |
|
|
500 |
$maxkey = $key; |
|
|
501 |
} |
|
|
502 |
} |
|
|
503 |
} |
|
|
504 |
return ($returnkey ? $maxkey : $maxvalue); |
|
|
505 |
} |
|
|
506 |
|
|
|
507 |
public static function array_min($arraydata, $returnkey=false) { |
|
|
508 |
$minvalue = false; |
|
|
509 |
$minkey = false; |
|
|
510 |
foreach ($arraydata as $key => $value) { |
|
|
511 |
if (!is_array($value)) { |
|
|
512 |
if ($value > $minvalue) { |
|
|
513 |
$minvalue = $value; |
|
|
514 |
$minkey = $key; |
|
|
515 |
} |
|
|
516 |
} |
|
|
517 |
} |
|
|
518 |
return ($returnkey ? $minkey : $minvalue); |
|
|
519 |
} |
|
|
520 |
|
|
|
521 |
public static function XML2array($XMLstring) { |
|
|
522 |
if (function_exists('simplexml_load_string')) { |
|
|
523 |
if (function_exists('get_object_vars')) { |
|
|
524 |
$XMLobject = simplexml_load_string($XMLstring); |
|
|
525 |
return self::SimpleXMLelement2array($XMLobject); |
|
|
526 |
} |
|
|
527 |
} |
|
|
528 |
return false; |
|
|
529 |
} |
|
|
530 |
|
|
|
531 |
public static function SimpleXMLelement2array($XMLobject) { |
|
|
532 |
if (!is_object($XMLobject) && !is_array($XMLobject)) { |
|
|
533 |
return $XMLobject; |
|
|
534 |
} |
|
|
535 |
$XMLarray = (is_object($XMLobject) ? get_object_vars($XMLobject) : $XMLobject); |
|
|
536 |
foreach ($XMLarray as $key => $value) { |
|
|
537 |
$XMLarray[$key] = self::SimpleXMLelement2array($value); |
|
|
538 |
} |
|
|
539 |
return $XMLarray; |
|
|
540 |
} |
|
|
541 |
|
|
|
542 |
|
|
|
543 |
// Allan Hansen <ahรartemis*dk> |
|
|
544 |
// self::md5_data() - returns md5sum for a file from startuing position to absolute end position |
|
|
545 |
public static function hash_data($file, $offset, $end, $algorithm) { |
|
|
546 |
static $tempdir = ''; |
|
|
547 |
if (!self::intValueSupported($end)) { |
|
|
548 |
return false; |
|
|
549 |
} |
|
|
550 |
switch ($algorithm) { |
|
|
551 |
case 'md5': |
|
|
552 |
$hash_function = 'md5_file'; |
|
|
553 |
$unix_call = 'md5sum'; |
|
|
554 |
$windows_call = 'md5sum.exe'; |
|
|
555 |
$hash_length = 32; |
|
|
556 |
break; |
|
|
557 |
|
|
|
558 |
case 'sha1': |
|
|
559 |
$hash_function = 'sha1_file'; |
|
|
560 |
$unix_call = 'sha1sum'; |
|
|
561 |
$windows_call = 'sha1sum.exe'; |
|
|
562 |
$hash_length = 40; |
|
|
563 |
break; |
|
|
564 |
|
|
|
565 |
default: |
|
|
566 |
throw new Exception('Invalid algorithm ('.$algorithm.') in self::hash_data()'); |
|
|
567 |
break; |
|
|
568 |
} |
|
|
569 |
$size = $end - $offset; |
|
|
570 |
while (true) { |
|
|
571 |
if (GETID3_OS_ISWINDOWS) { |
|
|
572 |
|
|
|
573 |
// It seems that sha1sum.exe for Windows only works on physical files, does not accept piped data |
|
|
574 |
// Fall back to create-temp-file method: |
|
|
575 |
if ($algorithm == 'sha1') { |
|
|
576 |
break; |
|
|
577 |
} |
|
|
578 |
|
|
|
579 |
$RequiredFiles = array('cygwin1.dll', 'head.exe', 'tail.exe', $windows_call); |
|
|
580 |
foreach ($RequiredFiles as $required_file) { |
|
|
581 |
if (!is_readable(GETID3_HELPERAPPSDIR.$required_file)) { |
|
|
582 |
// helper apps not available - fall back to old method |
|
|
583 |
break 2; |
|
|
584 |
} |
|
|
585 |
} |
|
|
586 |
$commandline = GETID3_HELPERAPPSDIR.'head.exe -c '.$end.' '.escapeshellarg(str_replace('/', DIRECTORY_SEPARATOR, $file)).' | '; |
|
|
587 |
$commandline .= GETID3_HELPERAPPSDIR.'tail.exe -c '.$size.' | '; |
|
|
588 |
$commandline .= GETID3_HELPERAPPSDIR.$windows_call; |
|
|
589 |
|
|
|
590 |
} else { |
|
|
591 |
|
|
|
592 |
$commandline = 'head -c'.$end.' '.escapeshellarg($file).' | '; |
|
|
593 |
$commandline .= 'tail -c'.$size.' | '; |
|
|
594 |
$commandline .= $unix_call; |
|
|
595 |
|
|
|
596 |
} |
|
|
597 |
if (preg_match('#(1|ON)#i', ini_get('safe_mode'))) { |
|
|
598 |
//throw new Exception('PHP running in Safe Mode - backtick operator not available, using slower non-system-call '.$algorithm.' algorithm'); |
|
|
599 |
break; |
|
|
600 |
} |
|
|
601 |
return substr(`$commandline`, 0, $hash_length); |
|
|
602 |
} |
|
|
603 |
|
|
|
604 |
if (empty($tempdir)) { |
|
|
605 |
// yes this is ugly, feel free to suggest a better way |
|
|
606 |
require_once(dirname(__FILE__).'/getid3.php'); |
|
|
607 |
$getid3_temp = new getID3(); |
|
|
608 |
$tempdir = $getid3_temp->tempdir; |
|
|
609 |
unset($getid3_temp); |
|
|
610 |
} |
|
|
611 |
// try to create a temporary file in the system temp directory - invalid dirname should force to system temp dir |
|
|
612 |
if (($data_filename = tempnam($tempdir, 'gI3')) === false) { |
|
|
613 |
// can't find anywhere to create a temp file, just fail |
|
|
614 |
return false; |
|
|
615 |
} |
|
|
616 |
|
|
|
617 |
// Init |
|
|
618 |
$result = false; |
|
|
619 |
|
|
|
620 |
// copy parts of file |
|
|
621 |
try { |
|
|
622 |
self::CopyFileParts($file, $data_filename, $offset, $end - $offset); |
|
|
623 |
$result = $hash_function($data_filename); |
|
|
624 |
} catch (Exception $e) { |
|
|
625 |
throw new Exception('self::CopyFileParts() failed in getid_lib::hash_data(): '.$e->getMessage()); |
|
|
626 |
} |
|
|
627 |
unlink($data_filename); |
|
|
628 |
return $result; |
|
|
629 |
} |
|
|
630 |
|
|
|
631 |
public static function CopyFileParts($filename_source, $filename_dest, $offset, $length) { |
|
|
632 |
if (!self::intValueSupported($offset + $length)) { |
|
|
633 |
throw new Exception('cannot copy file portion, it extends beyond the '.round(PHP_INT_MAX / 1073741824).'GB limit'); |
|
|
634 |
} |
|
|
635 |
if (is_readable($filename_source) && is_file($filename_source) && ($fp_src = fopen($filename_source, 'rb'))) { |
|
|
636 |
if (($fp_dest = fopen($filename_dest, 'wb'))) { |
|
|
637 |
if (fseek($fp_src, $offset, SEEK_SET) == 0) { |
|
|
638 |
$byteslefttowrite = $length; |
|
|
639 |
while (($byteslefttowrite > 0) && ($buffer = fread($fp_src, min($byteslefttowrite, getID3::FREAD_BUFFER_SIZE)))) { |
|
|
640 |
$byteswritten = fwrite($fp_dest, $buffer, $byteslefttowrite); |
|
|
641 |
$byteslefttowrite -= $byteswritten; |
|
|
642 |
} |
|
|
643 |
return true; |
|
|
644 |
} else { |
|
|
645 |
throw new Exception('failed to seek to offset '.$offset.' in '.$filename_source); |
|
|
646 |
} |
|
|
647 |
fclose($fp_dest); |
|
|
648 |
} else { |
|
|
649 |
throw new Exception('failed to create file for writing '.$filename_dest); |
|
|
650 |
} |
|
|
651 |
fclose($fp_src); |
|
|
652 |
} else { |
|
|
653 |
throw new Exception('failed to open file for reading '.$filename_source); |
|
|
654 |
} |
|
|
655 |
return false; |
|
|
656 |
} |
|
|
657 |
|
|
|
658 |
public static function iconv_fallback_int_utf8($charval) { |
|
|
659 |
if ($charval < 128) { |
|
|
660 |
// 0bbbbbbb |
|
|
661 |
$newcharstring = chr($charval); |
|
|
662 |
} elseif ($charval < 2048) { |
|
|
663 |
// 110bbbbb 10bbbbbb |
|
|
664 |
$newcharstring = chr(($charval >> 6) | 0xC0); |
|
|
665 |
$newcharstring .= chr(($charval & 0x3F) | 0x80); |
|
|
666 |
} elseif ($charval < 65536) { |
|
|
667 |
// 1110bbbb 10bbbbbb 10bbbbbb |
|
|
668 |
$newcharstring = chr(($charval >> 12) | 0xE0); |
|
|
669 |
$newcharstring .= chr(($charval >> 6) | 0xC0); |
|
|
670 |
$newcharstring .= chr(($charval & 0x3F) | 0x80); |
|
|
671 |
} else { |
|
|
672 |
// 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb |
|
|
673 |
$newcharstring = chr(($charval >> 18) | 0xF0); |
|
|
674 |
$newcharstring .= chr(($charval >> 12) | 0xC0); |
|
|
675 |
$newcharstring .= chr(($charval >> 6) | 0xC0); |
|
|
676 |
$newcharstring .= chr(($charval & 0x3F) | 0x80); |
|
|
677 |
} |
|
|
678 |
return $newcharstring; |
|
|
679 |
} |
|
|
680 |
|
|
|
681 |
// ISO-8859-1 => UTF-8 |
|
|
682 |
public static function iconv_fallback_iso88591_utf8($string, $bom=false) { |
|
|
683 |
if (function_exists('utf8_encode')) { |
|
|
684 |
return utf8_encode($string); |
|
|
685 |
} |
|
|
686 |
// utf8_encode() unavailable, use getID3()'s iconv_fallback() conversions (possibly PHP is compiled without XML support) |
|
|
687 |
$newcharstring = ''; |
|
|
688 |
if ($bom) { |
|
|
689 |
$newcharstring .= "\xEF\xBB\xBF"; |
|
|
690 |
} |
|
|
691 |
for ($i = 0; $i < strlen($string); $i++) { |
|
|
692 |
$charval = ord($string{$i}); |
|
|
693 |
$newcharstring .= self::iconv_fallback_int_utf8($charval); |
|
|
694 |
} |
|
|
695 |
return $newcharstring; |
|
|
696 |
} |
|
|
697 |
|
|
|
698 |
// ISO-8859-1 => UTF-16BE |
|
|
699 |
public static function iconv_fallback_iso88591_utf16be($string, $bom=false) { |
|
|
700 |
$newcharstring = ''; |
|
|
701 |
if ($bom) { |
|
|
702 |
$newcharstring .= "\xFE\xFF"; |
|
|
703 |
} |
|
|
704 |
for ($i = 0; $i < strlen($string); $i++) { |
|
|
705 |
$newcharstring .= "\x00".$string{$i}; |
|
|
706 |
} |
|
|
707 |
return $newcharstring; |
|
|
708 |
} |
|
|
709 |
|
|
|
710 |
// ISO-8859-1 => UTF-16LE |
|
|
711 |
public static function iconv_fallback_iso88591_utf16le($string, $bom=false) { |
|
|
712 |
$newcharstring = ''; |
|
|
713 |
if ($bom) { |
|
|
714 |
$newcharstring .= "\xFF\xFE"; |
|
|
715 |
} |
|
|
716 |
for ($i = 0; $i < strlen($string); $i++) { |
|
|
717 |
$newcharstring .= $string{$i}."\x00"; |
|
|
718 |
} |
|
|
719 |
return $newcharstring; |
|
|
720 |
} |
|
|
721 |
|
|
|
722 |
// ISO-8859-1 => UTF-16LE (BOM) |
|
|
723 |
public static function iconv_fallback_iso88591_utf16($string) { |
|
|
724 |
return self::iconv_fallback_iso88591_utf16le($string, true); |
|
|
725 |
} |
|
|
726 |
|
|
|
727 |
// UTF-8 => ISO-8859-1 |
|
|
728 |
public static function iconv_fallback_utf8_iso88591($string) { |
|
|
729 |
if (function_exists('utf8_decode')) { |
|
|
730 |
return utf8_decode($string); |
|
|
731 |
} |
|
|
732 |
// utf8_decode() unavailable, use getID3()'s iconv_fallback() conversions (possibly PHP is compiled without XML support) |
|
|
733 |
$newcharstring = ''; |
|
|
734 |
$offset = 0; |
|
|
735 |
$stringlength = strlen($string); |
|
|
736 |
while ($offset < $stringlength) { |
|
|
737 |
if ((ord($string{$offset}) | 0x07) == 0xF7) { |
|
|
738 |
// 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb |
|
|
739 |
$charval = ((ord($string{($offset + 0)}) & 0x07) << 18) & |
|
|
740 |
((ord($string{($offset + 1)}) & 0x3F) << 12) & |
|
|
741 |
((ord($string{($offset + 2)}) & 0x3F) << 6) & |
|
|
742 |
(ord($string{($offset + 3)}) & 0x3F); |
|
|
743 |
$offset += 4; |
|
|
744 |
} elseif ((ord($string{$offset}) | 0x0F) == 0xEF) { |
|
|
745 |
// 1110bbbb 10bbbbbb 10bbbbbb |
|
|
746 |
$charval = ((ord($string{($offset + 0)}) & 0x0F) << 12) & |
|
|
747 |
((ord($string{($offset + 1)}) & 0x3F) << 6) & |
|
|
748 |
(ord($string{($offset + 2)}) & 0x3F); |
|
|
749 |
$offset += 3; |
|
|
750 |
} elseif ((ord($string{$offset}) | 0x1F) == 0xDF) { |
|
|
751 |
// 110bbbbb 10bbbbbb |
|
|
752 |
$charval = ((ord($string{($offset + 0)}) & 0x1F) << 6) & |
|
|
753 |
(ord($string{($offset + 1)}) & 0x3F); |
|
|
754 |
$offset += 2; |
|
|
755 |
} elseif ((ord($string{$offset}) | 0x7F) == 0x7F) { |
|
|
756 |
// 0bbbbbbb |
|
|
757 |
$charval = ord($string{$offset}); |
|
|
758 |
$offset += 1; |
|
|
759 |
} else { |
|
|
760 |
// error? throw some kind of warning here? |
|
|
761 |
$charval = false; |
|
|
762 |
$offset += 1; |
|
|
763 |
} |
|
|
764 |
if ($charval !== false) { |
|
|
765 |
$newcharstring .= (($charval < 256) ? chr($charval) : '?'); |
|
|
766 |
} |
|
|
767 |
} |
|
|
768 |
return $newcharstring; |
|
|
769 |
} |
|
|
770 |
|
|
|
771 |
// UTF-8 => UTF-16BE |
|
|
772 |
public static function iconv_fallback_utf8_utf16be($string, $bom=false) { |
|
|
773 |
$newcharstring = ''; |
|
|
774 |
if ($bom) { |
|
|
775 |
$newcharstring .= "\xFE\xFF"; |
|
|
776 |
} |
|
|
777 |
$offset = 0; |
|
|
778 |
$stringlength = strlen($string); |
|
|
779 |
while ($offset < $stringlength) { |
|
|
780 |
if ((ord($string{$offset}) | 0x07) == 0xF7) { |
|
|
781 |
// 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb |
|
|
782 |
$charval = ((ord($string{($offset + 0)}) & 0x07) << 18) & |
|
|
783 |
((ord($string{($offset + 1)}) & 0x3F) << 12) & |
|
|
784 |
((ord($string{($offset + 2)}) & 0x3F) << 6) & |
|
|
785 |
(ord($string{($offset + 3)}) & 0x3F); |
|
|
786 |
$offset += 4; |
|
|
787 |
} elseif ((ord($string{$offset}) | 0x0F) == 0xEF) { |
|
|
788 |
// 1110bbbb 10bbbbbb 10bbbbbb |
|
|
789 |
$charval = ((ord($string{($offset + 0)}) & 0x0F) << 12) & |
|
|
790 |
((ord($string{($offset + 1)}) & 0x3F) << 6) & |
|
|
791 |
(ord($string{($offset + 2)}) & 0x3F); |
|
|
792 |
$offset += 3; |
|
|
793 |
} elseif ((ord($string{$offset}) | 0x1F) == 0xDF) { |
|
|
794 |
// 110bbbbb 10bbbbbb |
|
|
795 |
$charval = ((ord($string{($offset + 0)}) & 0x1F) << 6) & |
|
|
796 |
(ord($string{($offset + 1)}) & 0x3F); |
|
|
797 |
$offset += 2; |
|
|
798 |
} elseif ((ord($string{$offset}) | 0x7F) == 0x7F) { |
|
|
799 |
// 0bbbbbbb |
|
|
800 |
$charval = ord($string{$offset}); |
|
|
801 |
$offset += 1; |
|
|
802 |
} else { |
|
|
803 |
// error? throw some kind of warning here? |
|
|
804 |
$charval = false; |
|
|
805 |
$offset += 1; |
|
|
806 |
} |
|
|
807 |
if ($charval !== false) { |
|
|
808 |
$newcharstring .= (($charval < 65536) ? self::BigEndian2String($charval, 2) : "\x00".'?'); |
|
|
809 |
} |
|
|
810 |
} |
|
|
811 |
return $newcharstring; |
|
|
812 |
} |
|
|
813 |
|
|
|
814 |
// UTF-8 => UTF-16LE |
|
|
815 |
public static function iconv_fallback_utf8_utf16le($string, $bom=false) { |
|
|
816 |
$newcharstring = ''; |
|
|
817 |
if ($bom) { |
|
|
818 |
$newcharstring .= "\xFF\xFE"; |
|
|
819 |
} |
|
|
820 |
$offset = 0; |
|
|
821 |
$stringlength = strlen($string); |
|
|
822 |
while ($offset < $stringlength) { |
|
|
823 |
if ((ord($string{$offset}) | 0x07) == 0xF7) { |
|
|
824 |
// 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb |
|
|
825 |
$charval = ((ord($string{($offset + 0)}) & 0x07) << 18) & |
|
|
826 |
((ord($string{($offset + 1)}) & 0x3F) << 12) & |
|
|
827 |
((ord($string{($offset + 2)}) & 0x3F) << 6) & |
|
|
828 |
(ord($string{($offset + 3)}) & 0x3F); |
|
|
829 |
$offset += 4; |
|
|
830 |
} elseif ((ord($string{$offset}) | 0x0F) == 0xEF) { |
|
|
831 |
// 1110bbbb 10bbbbbb 10bbbbbb |
|
|
832 |
$charval = ((ord($string{($offset + 0)}) & 0x0F) << 12) & |
|
|
833 |
((ord($string{($offset + 1)}) & 0x3F) << 6) & |
|
|
834 |
(ord($string{($offset + 2)}) & 0x3F); |
|
|
835 |
$offset += 3; |
|
|
836 |
} elseif ((ord($string{$offset}) | 0x1F) == 0xDF) { |
|
|
837 |
// 110bbbbb 10bbbbbb |
|
|
838 |
$charval = ((ord($string{($offset + 0)}) & 0x1F) << 6) & |
|
|
839 |
(ord($string{($offset + 1)}) & 0x3F); |
|
|
840 |
$offset += 2; |
|
|
841 |
} elseif ((ord($string{$offset}) | 0x7F) == 0x7F) { |
|
|
842 |
// 0bbbbbbb |
|
|
843 |
$charval = ord($string{$offset}); |
|
|
844 |
$offset += 1; |
|
|
845 |
} else { |
|
|
846 |
// error? maybe throw some warning here? |
|
|
847 |
$charval = false; |
|
|
848 |
$offset += 1; |
|
|
849 |
} |
|
|
850 |
if ($charval !== false) { |
|
|
851 |
$newcharstring .= (($charval < 65536) ? self::LittleEndian2String($charval, 2) : '?'."\x00"); |
|
|
852 |
} |
|
|
853 |
} |
|
|
854 |
return $newcharstring; |
|
|
855 |
} |
|
|
856 |
|
|
|
857 |
// UTF-8 => UTF-16LE (BOM) |
|
|
858 |
public static function iconv_fallback_utf8_utf16($string) { |
|
|
859 |
return self::iconv_fallback_utf8_utf16le($string, true); |
|
|
860 |
} |
|
|
861 |
|
|
|
862 |
// UTF-16BE => UTF-8 |
|
|
863 |
public static function iconv_fallback_utf16be_utf8($string) { |
|
|
864 |
if (substr($string, 0, 2) == "\xFE\xFF") { |
|
|
865 |
// strip BOM |
|
|
866 |
$string = substr($string, 2); |
|
|
867 |
} |
|
|
868 |
$newcharstring = ''; |
|
|
869 |
for ($i = 0; $i < strlen($string); $i += 2) { |
|
|
870 |
$charval = self::BigEndian2Int(substr($string, $i, 2)); |
|
|
871 |
$newcharstring .= self::iconv_fallback_int_utf8($charval); |
|
|
872 |
} |
|
|
873 |
return $newcharstring; |
|
|
874 |
} |
|
|
875 |
|
|
|
876 |
// UTF-16LE => UTF-8 |
|
|
877 |
public static function iconv_fallback_utf16le_utf8($string) { |
|
|
878 |
if (substr($string, 0, 2) == "\xFF\xFE") { |
|
|
879 |
// strip BOM |
|
|
880 |
$string = substr($string, 2); |
|
|
881 |
} |
|
|
882 |
$newcharstring = ''; |
|
|
883 |
for ($i = 0; $i < strlen($string); $i += 2) { |
|
|
884 |
$charval = self::LittleEndian2Int(substr($string, $i, 2)); |
|
|
885 |
$newcharstring .= self::iconv_fallback_int_utf8($charval); |
|
|
886 |
} |
|
|
887 |
return $newcharstring; |
|
|
888 |
} |
|
|
889 |
|
|
|
890 |
// UTF-16BE => ISO-8859-1 |
|
|
891 |
public static function iconv_fallback_utf16be_iso88591($string) { |
|
|
892 |
if (substr($string, 0, 2) == "\xFE\xFF") { |
|
|
893 |
// strip BOM |
|
|
894 |
$string = substr($string, 2); |
|
|
895 |
} |
|
|
896 |
$newcharstring = ''; |
|
|
897 |
for ($i = 0; $i < strlen($string); $i += 2) { |
|
|
898 |
$charval = self::BigEndian2Int(substr($string, $i, 2)); |
|
|
899 |
$newcharstring .= (($charval < 256) ? chr($charval) : '?'); |
|
|
900 |
} |
|
|
901 |
return $newcharstring; |
|
|
902 |
} |
|
|
903 |
|
|
|
904 |
// UTF-16LE => ISO-8859-1 |
|
|
905 |
public static function iconv_fallback_utf16le_iso88591($string) { |
|
|
906 |
if (substr($string, 0, 2) == "\xFF\xFE") { |
|
|
907 |
// strip BOM |
|
|
908 |
$string = substr($string, 2); |
|
|
909 |
} |
|
|
910 |
$newcharstring = ''; |
|
|
911 |
for ($i = 0; $i < strlen($string); $i += 2) { |
|
|
912 |
$charval = self::LittleEndian2Int(substr($string, $i, 2)); |
|
|
913 |
$newcharstring .= (($charval < 256) ? chr($charval) : '?'); |
|
|
914 |
} |
|
|
915 |
return $newcharstring; |
|
|
916 |
} |
|
|
917 |
|
|
|
918 |
// UTF-16 (BOM) => ISO-8859-1 |
|
|
919 |
public static function iconv_fallback_utf16_iso88591($string) { |
|
|
920 |
$bom = substr($string, 0, 2); |
|
|
921 |
if ($bom == "\xFE\xFF") { |
|
|
922 |
return self::iconv_fallback_utf16be_iso88591(substr($string, 2)); |
|
|
923 |
} elseif ($bom == "\xFF\xFE") { |
|
|
924 |
return self::iconv_fallback_utf16le_iso88591(substr($string, 2)); |
|
|
925 |
} |
|
|
926 |
return $string; |
|
|
927 |
} |
|
|
928 |
|
|
|
929 |
// UTF-16 (BOM) => UTF-8 |
|
|
930 |
public static function iconv_fallback_utf16_utf8($string) { |
|
|
931 |
$bom = substr($string, 0, 2); |
|
|
932 |
if ($bom == "\xFE\xFF") { |
|
|
933 |
return self::iconv_fallback_utf16be_utf8(substr($string, 2)); |
|
|
934 |
} elseif ($bom == "\xFF\xFE") { |
|
|
935 |
return self::iconv_fallback_utf16le_utf8(substr($string, 2)); |
|
|
936 |
} |
|
|
937 |
return $string; |
|
|
938 |
} |
|
|
939 |
|
|
|
940 |
public static function iconv_fallback($in_charset, $out_charset, $string) { |
|
|
941 |
|
|
|
942 |
if ($in_charset == $out_charset) { |
|
|
943 |
return $string; |
|
|
944 |
} |
|
|
945 |
|
|
|
946 |
// iconv() availble |
|
|
947 |
if (function_exists('iconv')) { |
|
|
948 |
if ($converted_string = @iconv($in_charset, $out_charset.'//TRANSLIT', $string)) { |
|
|
949 |
switch ($out_charset) { |
|
|
950 |
case 'ISO-8859-1': |
|
|
951 |
$converted_string = rtrim($converted_string, "\x00"); |
|
|
952 |
break; |
|
|
953 |
} |
|
|
954 |
return $converted_string; |
|
|
955 |
} |
|
|
956 |
|
|
|
957 |
// iconv() may sometimes fail with "illegal character in input string" error message |
|
|
958 |
// and return an empty string, but returning the unconverted string is more useful |
|
|
959 |
return $string; |
|
|
960 |
} |
|
|
961 |
|
|
|
962 |
|
|
|
963 |
// iconv() not available |
|
|
964 |
static $ConversionFunctionList = array(); |
|
|
965 |
if (empty($ConversionFunctionList)) { |
|
|
966 |
$ConversionFunctionList['ISO-8859-1']['UTF-8'] = 'iconv_fallback_iso88591_utf8'; |
|
|
967 |
$ConversionFunctionList['ISO-8859-1']['UTF-16'] = 'iconv_fallback_iso88591_utf16'; |
|
|
968 |
$ConversionFunctionList['ISO-8859-1']['UTF-16BE'] = 'iconv_fallback_iso88591_utf16be'; |
|
|
969 |
$ConversionFunctionList['ISO-8859-1']['UTF-16LE'] = 'iconv_fallback_iso88591_utf16le'; |
|
|
970 |
$ConversionFunctionList['UTF-8']['ISO-8859-1'] = 'iconv_fallback_utf8_iso88591'; |
|
|
971 |
$ConversionFunctionList['UTF-8']['UTF-16'] = 'iconv_fallback_utf8_utf16'; |
|
|
972 |
$ConversionFunctionList['UTF-8']['UTF-16BE'] = 'iconv_fallback_utf8_utf16be'; |
|
|
973 |
$ConversionFunctionList['UTF-8']['UTF-16LE'] = 'iconv_fallback_utf8_utf16le'; |
|
|
974 |
$ConversionFunctionList['UTF-16']['ISO-8859-1'] = 'iconv_fallback_utf16_iso88591'; |
|
|
975 |
$ConversionFunctionList['UTF-16']['UTF-8'] = 'iconv_fallback_utf16_utf8'; |
|
|
976 |
$ConversionFunctionList['UTF-16LE']['ISO-8859-1'] = 'iconv_fallback_utf16le_iso88591'; |
|
|
977 |
$ConversionFunctionList['UTF-16LE']['UTF-8'] = 'iconv_fallback_utf16le_utf8'; |
|
|
978 |
$ConversionFunctionList['UTF-16BE']['ISO-8859-1'] = 'iconv_fallback_utf16be_iso88591'; |
|
|
979 |
$ConversionFunctionList['UTF-16BE']['UTF-8'] = 'iconv_fallback_utf16be_utf8'; |
|
|
980 |
} |
|
|
981 |
if (isset($ConversionFunctionList[strtoupper($in_charset)][strtoupper($out_charset)])) { |
|
|
982 |
$ConversionFunction = $ConversionFunctionList[strtoupper($in_charset)][strtoupper($out_charset)]; |
|
|
983 |
return self::$ConversionFunction($string); |
|
|
984 |
} |
|
|
985 |
throw new Exception('PHP does not have iconv() support - cannot convert from '.$in_charset.' to '.$out_charset); |
|
|
986 |
} |
|
|
987 |
|
|
|
988 |
|
|
|
989 |
public static function MultiByteCharString2HTML($string, $charset='ISO-8859-1') { |
|
|
990 |
$string = (string) $string; // in case trying to pass a numeric (float, int) string, would otherwise return an empty string |
|
|
991 |
$HTMLstring = ''; |
|
|
992 |
|
|
|
993 |
switch ($charset) { |
|
|
994 |
case '1251': |
|
|
995 |
case '1252': |
|
|
996 |
case '866': |
|
|
997 |
case '932': |
|
|
998 |
case '936': |
|
|
999 |
case '950': |
|
|
1000 |
case 'BIG5': |
|
|
1001 |
case 'BIG5-HKSCS': |
|
|
1002 |
case 'cp1251': |
|
|
1003 |
case 'cp1252': |
|
|
1004 |
case 'cp866': |
|
|
1005 |
case 'EUC-JP': |
|
|
1006 |
case 'EUCJP': |
|
|
1007 |
case 'GB2312': |
|
|
1008 |
case 'ibm866': |
|
|
1009 |
case 'ISO-8859-1': |
|
|
1010 |
case 'ISO-8859-15': |
|
|
1011 |
case 'ISO8859-1': |
|
|
1012 |
case 'ISO8859-15': |
|
|
1013 |
case 'KOI8-R': |
|
|
1014 |
case 'koi8-ru': |
|
|
1015 |
case 'koi8r': |
|
|
1016 |
case 'Shift_JIS': |
|
|
1017 |
case 'SJIS': |
|
|
1018 |
case 'win-1251': |
|
|
1019 |
case 'Windows-1251': |
|
|
1020 |
case 'Windows-1252': |
|
|
1021 |
$HTMLstring = htmlentities($string, ENT_COMPAT, $charset); |
|
|
1022 |
break; |
|
|
1023 |
|
|
|
1024 |
case 'UTF-8': |
|
|
1025 |
$strlen = strlen($string); |
|
|
1026 |
for ($i = 0; $i < $strlen; $i++) { |
|
|
1027 |
$char_ord_val = ord($string{$i}); |
|
|
1028 |
$charval = 0; |
|
|
1029 |
if ($char_ord_val < 0x80) { |
|
|
1030 |
$charval = $char_ord_val; |
|
|
1031 |
} elseif ((($char_ord_val & 0xF0) >> 4) == 0x0F && $i+3 < $strlen) { |
|
|
1032 |
$charval = (($char_ord_val & 0x07) << 18); |
|
|
1033 |
$charval += ((ord($string{++$i}) & 0x3F) << 12); |
|
|
1034 |
$charval += ((ord($string{++$i}) & 0x3F) << 6); |
|
|
1035 |
$charval += (ord($string{++$i}) & 0x3F); |
|
|
1036 |
} elseif ((($char_ord_val & 0xE0) >> 5) == 0x07 && $i+2 < $strlen) { |
|
|
1037 |
$charval = (($char_ord_val & 0x0F) << 12); |
|
|
1038 |
$charval += ((ord($string{++$i}) & 0x3F) << 6); |
|
|
1039 |
$charval += (ord($string{++$i}) & 0x3F); |
|
|
1040 |
} elseif ((($char_ord_val & 0xC0) >> 6) == 0x03 && $i+1 < $strlen) { |
|
|
1041 |
$charval = (($char_ord_val & 0x1F) << 6); |
|
|
1042 |
$charval += (ord($string{++$i}) & 0x3F); |
|
|
1043 |
} |
|
|
1044 |
if (($charval >= 32) && ($charval <= 127)) { |
|
|
1045 |
$HTMLstring .= htmlentities(chr($charval)); |
|
|
1046 |
} else { |
|
|
1047 |
$HTMLstring .= '&#'.$charval.';'; |
|
|
1048 |
} |
|
|
1049 |
} |
|
|
1050 |
break; |
|
|
1051 |
|
|
|
1052 |
case 'UTF-16LE': |
|
|
1053 |
for ($i = 0; $i < strlen($string); $i += 2) { |
|
|
1054 |
$charval = self::LittleEndian2Int(substr($string, $i, 2)); |
|
|
1055 |
if (($charval >= 32) && ($charval <= 127)) { |
|
|
1056 |
$HTMLstring .= chr($charval); |
|
|
1057 |
} else { |
|
|
1058 |
$HTMLstring .= '&#'.$charval.';'; |
|
|
1059 |
} |
|
|
1060 |
} |
|
|
1061 |
break; |
|
|
1062 |
|
|
|
1063 |
case 'UTF-16BE': |
|
|
1064 |
for ($i = 0; $i < strlen($string); $i += 2) { |
|
|
1065 |
$charval = self::BigEndian2Int(substr($string, $i, 2)); |
|
|
1066 |
if (($charval >= 32) && ($charval <= 127)) { |
|
|
1067 |
$HTMLstring .= chr($charval); |
|
|
1068 |
} else { |
|
|
1069 |
$HTMLstring .= '&#'.$charval.';'; |
|
|
1070 |
} |
|
|
1071 |
} |
|
|
1072 |
break; |
|
|
1073 |
|
|
|
1074 |
default: |
|
|
1075 |
$HTMLstring = 'ERROR: Character set "'.$charset.'" not supported in MultiByteCharString2HTML()'; |
|
|
1076 |
break; |
|
|
1077 |
} |
|
|
1078 |
return $HTMLstring; |
|
|
1079 |
} |
|
|
1080 |
|
|
|
1081 |
|
|
|
1082 |
|
|
|
1083 |
public static function RGADnameLookup($namecode) { |
|
|
1084 |
static $RGADname = array(); |
|
|
1085 |
if (empty($RGADname)) { |
|
|
1086 |
$RGADname[0] = 'not set'; |
|
|
1087 |
$RGADname[1] = 'Track Gain Adjustment'; |
|
|
1088 |
$RGADname[2] = 'Album Gain Adjustment'; |
|
|
1089 |
} |
|
|
1090 |
|
|
|
1091 |
return (isset($RGADname[$namecode]) ? $RGADname[$namecode] : ''); |
|
|
1092 |
} |
|
|
1093 |
|
|
|
1094 |
|
|
|
1095 |
public static function RGADoriginatorLookup($originatorcode) { |
|
|
1096 |
static $RGADoriginator = array(); |
|
|
1097 |
if (empty($RGADoriginator)) { |
|
|
1098 |
$RGADoriginator[0] = 'unspecified'; |
|
|
1099 |
$RGADoriginator[1] = 'pre-set by artist/producer/mastering engineer'; |
|
|
1100 |
$RGADoriginator[2] = 'set by user'; |
|
|
1101 |
$RGADoriginator[3] = 'determined automatically'; |
|
|
1102 |
} |
|
|
1103 |
|
|
|
1104 |
return (isset($RGADoriginator[$originatorcode]) ? $RGADoriginator[$originatorcode] : ''); |
|
|
1105 |
} |
|
|
1106 |
|
|
|
1107 |
|
|
|
1108 |
public static function RGADadjustmentLookup($rawadjustment, $signbit) { |
|
|
1109 |
$adjustment = $rawadjustment / 10; |
|
|
1110 |
if ($signbit == 1) { |
|
|
1111 |
$adjustment *= -1; |
|
|
1112 |
} |
|
|
1113 |
return (float) $adjustment; |
|
|
1114 |
} |
|
|
1115 |
|
|
|
1116 |
|
|
|
1117 |
public static function RGADgainString($namecode, $originatorcode, $replaygain) { |
|
|
1118 |
if ($replaygain < 0) { |
|
|
1119 |
$signbit = '1'; |
|
|
1120 |
} else { |
|
|
1121 |
$signbit = '0'; |
|
|
1122 |
} |
|
|
1123 |
$storedreplaygain = intval(round($replaygain * 10)); |
|
|
1124 |
$gainstring = str_pad(decbin($namecode), 3, '0', STR_PAD_LEFT); |
|
|
1125 |
$gainstring .= str_pad(decbin($originatorcode), 3, '0', STR_PAD_LEFT); |
|
|
1126 |
$gainstring .= $signbit; |
|
|
1127 |
$gainstring .= str_pad(decbin($storedreplaygain), 9, '0', STR_PAD_LEFT); |
|
|
1128 |
|
|
|
1129 |
return $gainstring; |
|
|
1130 |
} |
|
|
1131 |
|
|
|
1132 |
public static function RGADamplitude2dB($amplitude) { |
|
|
1133 |
return 20 * log10($amplitude); |
|
|
1134 |
} |
|
|
1135 |
|
|
|
1136 |
|
|
|
1137 |
public static function GetDataImageSize($imgData, &$imageinfo=array()) { |
|
|
1138 |
static $tempdir = ''; |
|
|
1139 |
if (empty($tempdir)) { |
|
|
1140 |
// yes this is ugly, feel free to suggest a better way |
|
|
1141 |
require_once(dirname(__FILE__).'/getid3.php'); |
|
|
1142 |
$getid3_temp = new getID3(); |
|
|
1143 |
$tempdir = $getid3_temp->tempdir; |
|
|
1144 |
unset($getid3_temp); |
|
|
1145 |
} |
|
|
1146 |
$GetDataImageSize = false; |
|
|
1147 |
if ($tempfilename = tempnam($tempdir, 'gI3')) { |
|
|
1148 |
if (is_writable($tempfilename) && is_file($tempfilename) && ($tmp = fopen($tempfilename, 'wb'))) { |
|
|
1149 |
fwrite($tmp, $imgData); |
|
|
1150 |
fclose($tmp); |
|
|
1151 |
$GetDataImageSize = @getimagesize($tempfilename, $imageinfo); |
|
|
1152 |
} |
|
|
1153 |
unlink($tempfilename); |
|
|
1154 |
} |
|
|
1155 |
return $GetDataImageSize; |
|
|
1156 |
} |
|
|
1157 |
|
|
|
1158 |
public static function ImageExtFromMime($mime_type) { |
|
|
1159 |
// temporary way, works OK for now, but should be reworked in the future |
|
|
1160 |
return str_replace(array('image/', 'x-', 'jpeg'), array('', '', 'jpg'), $mime_type); |
|
|
1161 |
} |
|
|
1162 |
|
|
|
1163 |
public static function ImageTypesLookup($imagetypeid) { |
|
|
1164 |
static $ImageTypesLookup = array(); |
|
|
1165 |
if (empty($ImageTypesLookup)) { |
|
|
1166 |
$ImageTypesLookup[1] = 'gif'; |
|
|
1167 |
$ImageTypesLookup[2] = 'jpeg'; |
|
|
1168 |
$ImageTypesLookup[3] = 'png'; |
|
|
1169 |
$ImageTypesLookup[4] = 'swf'; |
|
|
1170 |
$ImageTypesLookup[5] = 'psd'; |
|
|
1171 |
$ImageTypesLookup[6] = 'bmp'; |
|
|
1172 |
$ImageTypesLookup[7] = 'tiff (little-endian)'; |
|
|
1173 |
$ImageTypesLookup[8] = 'tiff (big-endian)'; |
|
|
1174 |
$ImageTypesLookup[9] = 'jpc'; |
|
|
1175 |
$ImageTypesLookup[10] = 'jp2'; |
|
|
1176 |
$ImageTypesLookup[11] = 'jpx'; |
|
|
1177 |
$ImageTypesLookup[12] = 'jb2'; |
|
|
1178 |
$ImageTypesLookup[13] = 'swc'; |
|
|
1179 |
$ImageTypesLookup[14] = 'iff'; |
|
|
1180 |
} |
|
|
1181 |
return (isset($ImageTypesLookup[$imagetypeid]) ? $ImageTypesLookup[$imagetypeid] : ''); |
|
|
1182 |
} |
|
|
1183 |
|
|
|
1184 |
public static function CopyTagsToComments(&$ThisFileInfo) { |
|
|
1185 |
|
|
|
1186 |
// Copy all entries from ['tags'] into common ['comments'] |
|
|
1187 |
if (!empty($ThisFileInfo['tags'])) { |
|
|
1188 |
foreach ($ThisFileInfo['tags'] as $tagtype => $tagarray) { |
|
|
1189 |
foreach ($tagarray as $tagname => $tagdata) { |
|
|
1190 |
foreach ($tagdata as $key => $value) { |
|
|
1191 |
if (!empty($value)) { |
|
|
1192 |
if (empty($ThisFileInfo['comments'][$tagname])) { |
|
|
1193 |
|
|
|
1194 |
// fall through and append value |
|
|
1195 |
|
|
|
1196 |
} elseif ($tagtype == 'id3v1') { |
|
|
1197 |
|
|
|
1198 |
$newvaluelength = strlen(trim($value)); |
|
|
1199 |
foreach ($ThisFileInfo['comments'][$tagname] as $existingkey => $existingvalue) { |
|
|
1200 |
$oldvaluelength = strlen(trim($existingvalue)); |
|
|
1201 |
if (($newvaluelength <= $oldvaluelength) && (substr($existingvalue, 0, $newvaluelength) == trim($value))) { |
|
|
1202 |
// new value is identical but shorter-than (or equal-length to) one already in comments - skip |
|
|
1203 |
break 2; |
|
|
1204 |
} |
|
|
1205 |
} |
|
|
1206 |
|
|
|
1207 |
} elseif (!is_array($value)) { |
|
|
1208 |
|
|
|
1209 |
$newvaluelength = strlen(trim($value)); |
|
|
1210 |
foreach ($ThisFileInfo['comments'][$tagname] as $existingkey => $existingvalue) { |
|
|
1211 |
$oldvaluelength = strlen(trim($existingvalue)); |
|
|
1212 |
if (($newvaluelength > $oldvaluelength) && (substr(trim($value), 0, strlen($existingvalue)) == $existingvalue)) { |
|
|
1213 |
$ThisFileInfo['comments'][$tagname][$existingkey] = trim($value); |
|
|
1214 |
break 2; |
|
|
1215 |
} |
|
|
1216 |
} |
|
|
1217 |
|
|
|
1218 |
} |
|
|
1219 |
if (is_array($value) || empty($ThisFileInfo['comments'][$tagname]) || !in_array(trim($value), $ThisFileInfo['comments'][$tagname])) { |
|
|
1220 |
$value = (is_string($value) ? trim($value) : $value); |
|
|
1221 |
$ThisFileInfo['comments'][$tagname][] = $value; |
|
|
1222 |
} |
|
|
1223 |
} |
|
|
1224 |
} |
|
|
1225 |
} |
|
|
1226 |
} |
|
|
1227 |
|
|
|
1228 |
// Copy to ['comments_html'] |
|
|
1229 |
foreach ($ThisFileInfo['comments'] as $field => $values) { |
|
|
1230 |
if ($field == 'picture') { |
|
|
1231 |
// pictures can take up a lot of space, and we don't need multiple copies of them |
|
|
1232 |
// let there be a single copy in [comments][picture], and not elsewhere |
|
|
1233 |
continue; |
|
|
1234 |
} |
|
|
1235 |
foreach ($values as $index => $value) { |
|
|
1236 |
if (is_array($value)) { |
|
|
1237 |
$ThisFileInfo['comments_html'][$field][$index] = $value; |
|
|
1238 |
} else { |
|
|
1239 |
$ThisFileInfo['comments_html'][$field][$index] = str_replace('�', '', self::MultiByteCharString2HTML($value, $ThisFileInfo['encoding'])); |
|
|
1240 |
} |
|
|
1241 |
} |
|
|
1242 |
} |
|
|
1243 |
} |
|
|
1244 |
return true; |
|
|
1245 |
} |
|
|
1246 |
|
|
|
1247 |
|
|
|
1248 |
public static function EmbeddedLookup($key, $begin, $end, $file, $name) { |
|
|
1249 |
|
|
|
1250 |
// Cached |
|
|
1251 |
static $cache; |
|
|
1252 |
if (isset($cache[$file][$name])) { |
|
|
1253 |
return (isset($cache[$file][$name][$key]) ? $cache[$file][$name][$key] : ''); |
|
|
1254 |
} |
|
|
1255 |
|
|
|
1256 |
// Init |
|
|
1257 |
$keylength = strlen($key); |
|
|
1258 |
$line_count = $end - $begin - 7; |
|
|
1259 |
|
|
|
1260 |
// Open php file |
|
|
1261 |
$fp = fopen($file, 'r'); |
|
|
1262 |
|
|
|
1263 |
// Discard $begin lines |
|
|
1264 |
for ($i = 0; $i < ($begin + 3); $i++) { |
|
|
1265 |
fgets($fp, 1024); |
|
|
1266 |
} |
|
|
1267 |
|
|
|
1268 |
// Loop thru line |
|
|
1269 |
while (0 < $line_count--) { |
|
|
1270 |
|
|
|
1271 |
// Read line |
|
|
1272 |
$line = ltrim(fgets($fp, 1024), "\t "); |
|
|
1273 |
|
|
|
1274 |
// METHOD A: only cache the matching key - less memory but slower on next lookup of not-previously-looked-up key |
|
|
1275 |
//$keycheck = substr($line, 0, $keylength); |
|
|
1276 |
//if ($key == $keycheck) { |
|
|
1277 |
// $cache[$file][$name][$keycheck] = substr($line, $keylength + 1); |
|
|
1278 |
// break; |
|
|
1279 |
//} |
|
|
1280 |
|
|
|
1281 |
// METHOD B: cache all keys in this lookup - more memory but faster on next lookup of not-previously-looked-up key |
|
|
1282 |
//$cache[$file][$name][substr($line, 0, $keylength)] = trim(substr($line, $keylength + 1)); |
|
|
1283 |
$explodedLine = explode("\t", $line, 2); |
|
|
1284 |
$ThisKey = (isset($explodedLine[0]) ? $explodedLine[0] : ''); |
|
|
1285 |
$ThisValue = (isset($explodedLine[1]) ? $explodedLine[1] : ''); |
|
|
1286 |
$cache[$file][$name][$ThisKey] = trim($ThisValue); |
|
|
1287 |
} |
|
|
1288 |
|
|
|
1289 |
// Close and return |
|
|
1290 |
fclose($fp); |
|
|
1291 |
return (isset($cache[$file][$name][$key]) ? $cache[$file][$name][$key] : ''); |
|
|
1292 |
} |
|
|
1293 |
|
|
|
1294 |
public static function IncludeDependency($filename, $sourcefile, $DieOnFailure=false) { |
|
|
1295 |
global $GETID3_ERRORARRAY; |
|
|
1296 |
|
|
|
1297 |
if (file_exists($filename)) { |
|
|
1298 |
if (include_once($filename)) { |
|
|
1299 |
return true; |
|
|
1300 |
} else { |
|
|
1301 |
$diemessage = basename($sourcefile).' depends on '.$filename.', which has errors'; |
|
|
1302 |
} |
|
|
1303 |
} else { |
|
|
1304 |
$diemessage = basename($sourcefile).' depends on '.$filename.', which is missing'; |
|
|
1305 |
} |
|
|
1306 |
if ($DieOnFailure) { |
|
|
1307 |
throw new Exception($diemessage); |
|
|
1308 |
} else { |
|
|
1309 |
$GETID3_ERRORARRAY[] = $diemessage; |
|
|
1310 |
} |
|
|
1311 |
return false; |
|
|
1312 |
} |
|
|
1313 |
|
|
|
1314 |
public static function trimNullByte($string) { |
|
|
1315 |
return trim($string, "\x00"); |
|
|
1316 |
} |
|
|
1317 |
|
|
|
1318 |
public static function getFileSizeSyscall($path) { |
|
|
1319 |
$filesize = false; |
|
|
1320 |
|
|
|
1321 |
if (GETID3_OS_ISWINDOWS) { |
|
|
1322 |
if (class_exists('COM')) { // From PHP 5.3.15 and 5.4.5, COM and DOTNET is no longer built into the php core.you have to add COM support in php.ini: |
|
|
1323 |
$filesystem = new COM('Scripting.FileSystemObject'); |
|
|
1324 |
$file = $filesystem->GetFile($path); |
|
|
1325 |
$filesize = $file->Size(); |
|
|
1326 |
unset($filesystem, $file); |
|
|
1327 |
} else { |
|
|
1328 |
$commandline = 'for %I in ('.escapeshellarg($path).') do @echo %~zI'; |
|
|
1329 |
} |
|
|
1330 |
} else { |
|
|
1331 |
$commandline = 'ls -l '.escapeshellarg($path).' | awk \'{print $5}\''; |
|
|
1332 |
} |
|
|
1333 |
if (isset($commandline)) { |
|
|
1334 |
$output = trim(`$commandline`); |
|
|
1335 |
if (ctype_digit($output)) { |
|
|
1336 |
$filesize = (float) $output; |
|
|
1337 |
} |
|
|
1338 |
} |
|
|
1339 |
return $filesize; |
|
|
1340 |
} |
|
|
1341 |
} |