diff options
Diffstat (limited to 'srcs/wordpress/wp-includes/ID3')
19 files changed, 25044 insertions, 0 deletions
diff --git a/srcs/wordpress/wp-includes/ID3/getid3.lib.php b/srcs/wordpress/wp-includes/ID3/getid3.lib.php new file mode 100644 index 0000000..1d51e8c --- /dev/null +++ b/srcs/wordpress/wp-includes/ID3/getid3.lib.php @@ -0,0 +1,1781 @@ +<?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 // +// // +// getid3.lib.php - part of getID3() // +// see readme.txt for more details // +// /// +///////////////////////////////////////////////////////////////// + + +class getid3_lib +{ + /** + * @param string $string + * @param bool $hex + * @param bool $spaces + * @param string $htmlencoding + * + * @return string + */ + public static function PrintHexBytes($string, $hex=true, $spaces=true, $htmlencoding='UTF-8') { + $returnstring = ''; + for ($i = 0; $i < strlen($string); $i++) { + if ($hex) { + $returnstring .= str_pad(dechex(ord($string[$i])), 2, '0', STR_PAD_LEFT); + } else { + $returnstring .= ' '.(preg_match("#[\x20-\x7E]#", $string[$i]) ? $string[$i] : '¤'); + } + if ($spaces) { + $returnstring .= ' '; + } + } + if (!empty($htmlencoding)) { + if ($htmlencoding === true) { + $htmlencoding = 'UTF-8'; // prior to getID3 v1.9.0 the function's 4th parameter was boolean + } + $returnstring = htmlentities($returnstring, ENT_QUOTES, $htmlencoding); + } + return $returnstring; + } + + /** + * Truncates a floating-point number at the decimal point. + * + * @param float $floatnumber + * + * @return float|int returns int (if possible, otherwise float) + */ + public static function trunc($floatnumber) { + if ($floatnumber >= 1) { + $truncatednumber = floor($floatnumber); + } elseif ($floatnumber <= -1) { + $truncatednumber = ceil($floatnumber); + } else { + $truncatednumber = 0; + } + if (self::intValueSupported($truncatednumber)) { + $truncatednumber = (int) $truncatednumber; + } + return $truncatednumber; + } + + /** + * @param int|null $variable + * @param int $increment + * + * @return bool + */ + public static function safe_inc(&$variable, $increment=1) { + if (isset($variable)) { + $variable += $increment; + } else { + $variable = $increment; + } + return true; + } + + /** + * @param int|float $floatnum + * + * @return int|float + */ + public static function CastAsInt($floatnum) { + // convert to float if not already + $floatnum = (float) $floatnum; + + // convert a float to type int, only if possible + if (self::trunc($floatnum) == $floatnum) { + // it's not floating point + if (self::intValueSupported($floatnum)) { + // it's within int range + $floatnum = (int) $floatnum; + } + } + return $floatnum; + } + + /** + * @param int $num + * + * @return bool + */ + public static function intValueSupported($num) { + // check if integers are 64-bit + static $hasINT64 = null; + if ($hasINT64 === null) { // 10x faster than is_null() + $hasINT64 = is_int(pow(2, 31)); // 32-bit int are limited to (2^31)-1 + if (!$hasINT64 && !defined('PHP_INT_MIN')) { + define('PHP_INT_MIN', ~PHP_INT_MAX); + } + } + // if integers are 64-bit - no other check required + if ($hasINT64 || (($num <= PHP_INT_MAX) && ($num >= PHP_INT_MIN))) { + return true; + } + return false; + } + + /** + * @param string $fraction + * + * @return float + */ + public static function DecimalizeFraction($fraction) { + list($numerator, $denominator) = explode('/', $fraction); + return $numerator / ($denominator ? $denominator : 1); + } + + /** + * @param string $binarynumerator + * + * @return float + */ + public static function DecimalBinary2Float($binarynumerator) { + $numerator = self::Bin2Dec($binarynumerator); + $denominator = self::Bin2Dec('1'.str_repeat('0', strlen($binarynumerator))); + return ($numerator / $denominator); + } + + /** + * @link http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/binary.html + * + * @param string $binarypointnumber + * @param int $maxbits + * + * @return array + */ + public static function NormalizeBinaryPoint($binarypointnumber, $maxbits=52) { + if (strpos($binarypointnumber, '.') === false) { + $binarypointnumber = '0.'.$binarypointnumber; + } elseif ($binarypointnumber[0] == '.') { + $binarypointnumber = '0'.$binarypointnumber; + } + $exponent = 0; + while (($binarypointnumber[0] != '1') || (substr($binarypointnumber, 1, 1) != '.')) { + if (substr($binarypointnumber, 1, 1) == '.') { + $exponent--; + $binarypointnumber = substr($binarypointnumber, 2, 1).'.'.substr($binarypointnumber, 3); + } else { + $pointpos = strpos($binarypointnumber, '.'); + $exponent += ($pointpos - 1); + $binarypointnumber = str_replace('.', '', $binarypointnumber); + $binarypointnumber = $binarypointnumber[0].'.'.substr($binarypointnumber, 1); + } + } + $binarypointnumber = str_pad(substr($binarypointnumber, 0, $maxbits + 2), $maxbits + 2, '0', STR_PAD_RIGHT); + return array('normalized'=>$binarypointnumber, 'exponent'=>(int) $exponent); + } + + /** + * @link http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/binary.html + * + * @param float $floatvalue + * + * @return string + */ + public static function Float2BinaryDecimal($floatvalue) { + $maxbits = 128; // to how many bits of precision should the calculations be taken? + $intpart = self::trunc($floatvalue); + $floatpart = abs($floatvalue - $intpart); + $pointbitstring = ''; + while (($floatpart != 0) && (strlen($pointbitstring) < $maxbits)) { + $floatpart *= 2; + $pointbitstring .= (string) self::trunc($floatpart); + $floatpart -= self::trunc($floatpart); + } + $binarypointnumber = decbin($intpart).'.'.$pointbitstring; + return $binarypointnumber; + } + + /** + * @link http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee-expl.html + * + * @param float $floatvalue + * @param int $bits + * + * @return string|false + */ + public static function Float2String($floatvalue, $bits) { + $exponentbits = 0; + $fractionbits = 0; + switch ($bits) { + case 32: + $exponentbits = 8; + $fractionbits = 23; + break; + + case 64: + $exponentbits = 11; + $fractionbits = 52; + break; + + default: + return false; + break; + } + if ($floatvalue >= 0) { + $signbit = '0'; + } else { + $signbit = '1'; + } + $normalizedbinary = self::NormalizeBinaryPoint(self::Float2BinaryDecimal($floatvalue), $fractionbits); + $biasedexponent = pow(2, $exponentbits - 1) - 1 + $normalizedbinary['exponent']; // (127 or 1023) +/- exponent + $exponentbitstring = str_pad(decbin($biasedexponent), $exponentbits, '0', STR_PAD_LEFT); + $fractionbitstring = str_pad(substr($normalizedbinary['normalized'], 2), $fractionbits, '0', STR_PAD_RIGHT); + + return self::BigEndian2String(self::Bin2Dec($signbit.$exponentbitstring.$fractionbitstring), $bits % 8, false); + } + + /** + * @param string $byteword + * + * @return float|false + */ + public static function LittleEndian2Float($byteword) { + return self::BigEndian2Float(strrev($byteword)); + } + + /** + * ANSI/IEEE Standard 754-1985, Standard for Binary Floating Point Arithmetic + * + * @link http://www.psc.edu/general/software/packages/ieee/ieee.html + * @link http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee.html + * + * @param string $byteword + * + * @return float|false + */ + public static function BigEndian2Float($byteword) { + $bitword = self::BigEndian2Bin($byteword); + if (!$bitword) { + return 0; + } + $signbit = $bitword[0]; + $floatvalue = 0; + $exponentbits = 0; + $fractionbits = 0; + + switch (strlen($byteword) * 8) { + case 32: + $exponentbits = 8; + $fractionbits = 23; + break; + + case 64: + $exponentbits = 11; + $fractionbits = 52; + break; + + case 80: + // 80-bit Apple SANE format + // http://www.mactech.com/articles/mactech/Vol.06/06.01/SANENormalized/ + $exponentstring = substr($bitword, 1, 15); + $isnormalized = intval($bitword[16]); + $fractionstring = substr($bitword, 17, 63); + $exponent = pow(2, self::Bin2Dec($exponentstring) - 16383); + $fraction = $isnormalized + self::DecimalBinary2Float($fractionstring); + $floatvalue = $exponent * $fraction; + if ($signbit == '1') { + $floatvalue *= -1; + } + return $floatvalue; + break; + + default: + return false; + break; + } + $exponentstring = substr($bitword, 1, $exponentbits); + $fractionstring = substr($bitword, $exponentbits + 1, $fractionbits); + $exponent = self::Bin2Dec($exponentstring); + $fraction = self::Bin2Dec($fractionstring); + + if (($exponent == (pow(2, $exponentbits) - 1)) && ($fraction != 0)) { + // Not a Number + $floatvalue = false; + } elseif (($exponent == (pow(2, $exponentbits) - 1)) && ($fraction == 0)) { + if ($signbit == '1') { + $floatvalue = '-infinity'; + } else { + $floatvalue = '+infinity'; + } + } elseif (($exponent == 0) && ($fraction == 0)) { + if ($signbit == '1') { + $floatvalue = -0; + } else { + $floatvalue = 0; + } + $floatvalue = ($signbit ? 0 : -0); + } elseif (($exponent == 0) && ($fraction != 0)) { + // These are 'unnormalized' values + $floatvalue = pow(2, (-1 * (pow(2, $exponentbits - 1) - 2))) * self::DecimalBinary2Float($fractionstring); + if ($signbit == '1') { + $floatvalue *= -1; + } + } elseif ($exponent != 0) { + $floatvalue = pow(2, ($exponent - (pow(2, $exponentbits - 1) - 1))) * (1 + self::DecimalBinary2Float($fractionstring)); + if ($signbit == '1') { + $floatvalue *= -1; + } + } + return (float) $floatvalue; + } + + /** + * @param string $byteword + * @param bool $synchsafe + * @param bool $signed + * + * @return int|float|false + * @throws Exception + */ + public static function BigEndian2Int($byteword, $synchsafe=false, $signed=false) { + $intvalue = 0; + $bytewordlen = strlen($byteword); + if ($bytewordlen == 0) { + return false; + } + for ($i = 0; $i < $bytewordlen; $i++) { + if ($synchsafe) { // disregard MSB, effectively 7-bit bytes + //$intvalue = $intvalue | (ord($byteword{$i}) & 0x7F) << (($bytewordlen - 1 - $i) * 7); // faster, but runs into problems past 2^31 on 32-bit systems + $intvalue += (ord($byteword[$i]) & 0x7F) * pow(2, ($bytewordlen - 1 - $i) * 7); + } else { + $intvalue += ord($byteword[$i]) * pow(256, ($bytewordlen - 1 - $i)); + } + } + if ($signed && !$synchsafe) { + // synchsafe ints are not allowed to be signed + if ($bytewordlen <= PHP_INT_SIZE) { + $signMaskBit = 0x80 << (8 * ($bytewordlen - 1)); + if ($intvalue & $signMaskBit) { + $intvalue = 0 - ($intvalue & ($signMaskBit - 1)); + } + } else { + throw new Exception('ERROR: Cannot have signed integers larger than '.(8 * PHP_INT_SIZE).'-bits ('.strlen($byteword).') in self::BigEndian2Int()'); + } + } + return self::CastAsInt($intvalue); + } + + /** + * @param string $byteword + * @param bool $signed + * + * @return int|float|false + */ + public static function LittleEndian2Int($byteword, $signed=false) { + return self::BigEndian2Int(strrev($byteword), false, $signed); + } + + /** + * @param string $byteword + * + * @return string + */ + public static function LittleEndian2Bin($byteword) { + return self::BigEndian2Bin(strrev($byteword)); + } + + /** + * @param string $byteword + * + * @return string + */ + public static function BigEndian2Bin($byteword) { + $binvalue = ''; + $bytewordlen = strlen($byteword); + for ($i = 0; $i < $bytewordlen; $i++) { + $binvalue .= str_pad(decbin(ord($byteword[$i])), 8, '0', STR_PAD_LEFT); + } + return $binvalue; + } + + /** + * @param int $number + * @param int $minbytes + * @param bool $synchsafe + * @param bool $signed + * + * @return string + * @throws Exception + */ + public static function BigEndian2String($number, $minbytes=1, $synchsafe=false, $signed=false) { + if ($number < 0) { + throw new Exception('ERROR: self::BigEndian2String() does not support negative numbers'); + } + $maskbyte = (($synchsafe || $signed) ? 0x7F : 0xFF); + $intstring = ''; + if ($signed) { + if ($minbytes > PHP_INT_SIZE) { + throw new Exception('ERROR: Cannot have signed integers larger than '.(8 * PHP_INT_SIZE).'-bits in self::BigEndian2String()'); + } + $number = $number & (0x80 << (8 * ($minbytes - 1))); + } + while ($number != 0) { + $quotient = ($number / ($maskbyte + 1)); + $intstring = chr(ceil(($quotient - floor($quotient)) * $maskbyte)).$intstring; + $number = floor($quotient); + } + return str_pad($intstring, $minbytes, "\x00", STR_PAD_LEFT); + } + + /** + * @param int $number + * + * @return string + */ + public static function Dec2Bin($number) { + while ($number >= 256) { + $bytes[] = (($number / 256) - (floor($number / 256))) * 256; + $number = floor($number / 256); + } + $bytes[] = $number; + $binstring = ''; + for ($i = 0; $i < count($bytes); $i++) { + $binstring = (($i == count($bytes) - 1) ? decbin($bytes[$i]) : str_pad(decbin($bytes[$i]), 8, '0', STR_PAD_LEFT)).$binstring; + } + return $binstring; + } + + /** + * @param string $binstring + * @param bool $signed + * + * @return int|float + */ + public static function Bin2Dec($binstring, $signed=false) { + $signmult = 1; + if ($signed) { + if ($binstring[0] == '1') { + $signmult = -1; + } + $binstring = substr($binstring, 1); + } + $decvalue = 0; + for ($i = 0; $i < strlen($binstring); $i++) { + $decvalue += ((int) substr($binstring, strlen($binstring) - $i - 1, 1)) * pow(2, $i); + } + return self::CastAsInt($decvalue * $signmult); + } + + /** + * @param string $binstring + * + * @return string + */ + public static function Bin2String($binstring) { + // return 'hi' for input of '0110100001101001' + $string = ''; + $binstringreversed = strrev($binstring); + for ($i = 0; $i < strlen($binstringreversed); $i += 8) { + $string = chr(self::Bin2Dec(strrev(substr($binstringreversed, $i, 8)))).$string; + } + return $string; + } + + /** + * @param int $number + * @param int $minbytes + * @param bool $synchsafe + * + * @return string + */ + public static function LittleEndian2String($number, $minbytes=1, $synchsafe=false) { + $intstring = ''; + while ($number > 0) { + if ($synchsafe) { + $intstring = $intstring.chr($number & 127); + $number >>= 7; + } else { + $intstring = $intstring.chr($number & 255); + $number >>= 8; + } + } + return str_pad($intstring, $minbytes, "\x00", STR_PAD_RIGHT); + } + + /** + * @param array $array1 + * @param array $array2 + * + * @return array|false + */ + public static function array_merge_clobber($array1, $array2) { + // written by kcØhireability*com + // taken from http://www.php.net/manual/en/function.array-merge-recursive.php + if (!is_array($array1) || !is_array($array2)) { + return false; + } + $newarray = $array1; + foreach ($array2 as $key => $val) { + if (is_array($val) && isset($newarray[$key]) && is_array($newarray[$key])) { + $newarray[$key] = self::array_merge_clobber($newarray[$key], $val); + } else { + $newarray[$key] = $val; + } + } + return $newarray; + } + + /** + * @param array $array1 + * @param array $array2 + * + * @return array|false + */ + public static function array_merge_noclobber($array1, $array2) { + if (!is_array($array1) || !is_array($array2)) { + return false; + } + $newarray = $array1; + foreach ($array2 as $key => $val) { + if (is_array($val) && isset($newarray[$key]) && is_array($newarray[$key])) { + $newarray[$key] = self::array_merge_noclobber($newarray[$key], $val); + } elseif (!isset($newarray[$key])) { + $newarray[$key] = $val; + } + } + return $newarray; + } + + /** + * @param array $array1 + * @param array $array2 + * + * @return array|false|null + */ + public static function flipped_array_merge_noclobber($array1, $array2) { + if (!is_array($array1) || !is_array($array2)) { + return false; + } + # naturally, this only works non-recursively + $newarray = array_flip($array1); + foreach (array_flip($array2) as $key => $val) { + if (!isset($newarray[$key])) { + $newarray[$key] = count($newarray); + } + } + return array_flip($newarray); + } + + /** + * @param array $theArray + * + * @return bool + */ + public static function ksort_recursive(&$theArray) { + ksort($theArray); + foreach ($theArray as $key => $value) { + if (is_array($value)) { + self::ksort_recursive($theArray[$key]); + } + } + return true; + } + + /** + * @param string $filename + * @param int $numextensions + * + * @return string + */ + public static function fileextension($filename, $numextensions=1) { + if (strstr($filename, '.')) { + $reversedfilename = strrev($filename); + $offset = 0; + for ($i = 0; $i < $numextensions; $i++) { + $offset = strpos($reversedfilename, '.', $offset + 1); + if ($offset === false) { + return ''; + } + } + return strrev(substr($reversedfilename, 0, $offset)); + } + return ''; + } + + /** + * @param int $seconds + * + * @return string + */ + public static function PlaytimeString($seconds) { + $sign = (($seconds < 0) ? '-' : ''); + $seconds = round(abs($seconds)); + $H = (int) floor( $seconds / 3600); + $M = (int) floor(($seconds - (3600 * $H) ) / 60); + $S = (int) round( $seconds - (3600 * $H) - (60 * $M) ); + return $sign.($H ? $H.':' : '').($H ? str_pad($M, 2, '0', STR_PAD_LEFT) : intval($M)).':'.str_pad($S, 2, 0, STR_PAD_LEFT); + } + + /** + * @param int $macdate + * + * @return int|float + */ + public static function DateMac2Unix($macdate) { + // Macintosh timestamp: seconds since 00:00h January 1, 1904 + // UNIX timestamp: seconds since 00:00h January 1, 1970 + return self::CastAsInt($macdate - 2082844800); + } + + /** + * @param string $rawdata + * + * @return float + */ + public static function FixedPoint8_8($rawdata) { + return self::BigEndian2Int(substr($rawdata, 0, 1)) + (float) (self::BigEndian2Int(substr($rawdata, 1, 1)) / pow(2, 8)); + } + + /** + * @param string $rawdata + * + * @return float + */ + public static function FixedPoint16_16($rawdata) { + return self::BigEndian2Int(substr($rawdata, 0, 2)) + (float) (self::BigEndian2Int(substr($rawdata, 2, 2)) / pow(2, 16)); + } + + /** + * @param string $rawdata + * + * @return float + */ + public static function FixedPoint2_30($rawdata) { + $binarystring = self::BigEndian2Bin($rawdata); + return self::Bin2Dec(substr($binarystring, 0, 2)) + (float) (self::Bin2Dec(substr($binarystring, 2, 30)) / pow(2, 30)); + } + + + /** + * @param string $ArrayPath + * @param string $Separator + * @param mixed $Value + * + * @return array + */ + public static function CreateDeepArray($ArrayPath, $Separator, $Value) { + // assigns $Value to a nested array path: + // $foo = self::CreateDeepArray('/path/to/my', '/', 'file.txt') + // is the same as: + // $foo = array('path'=>array('to'=>'array('my'=>array('file.txt')))); + // or + // $foo['path']['to']['my'] = 'file.txt'; + $ArrayPath = ltrim($ArrayPath, $Separator); + if (($pos = strpos($ArrayPath, $Separator)) !== false) { + $ReturnedArray[substr($ArrayPath, 0, $pos)] = self::CreateDeepArray(substr($ArrayPath, $pos + 1), $Separator, $Value); + } else { + $ReturnedArray[$ArrayPath] = $Value; + } + return $ReturnedArray; + } + + /** + * @param array $arraydata + * @param bool $returnkey + * + * @return int|false + */ + public static function array_max($arraydata, $returnkey=false) { + $maxvalue = false; + $maxkey = false; + foreach ($arraydata as $key => $value) { + if (!is_array($value)) { + if ($value > $maxvalue) { + $maxvalue = $value; + $maxkey = $key; + } + } + } + return ($returnkey ? $maxkey : $maxvalue); + } + + /** + * @param array $arraydata + * @param bool $returnkey + * + * @return int|false + */ + public static function array_min($arraydata, $returnkey=false) { + $minvalue = false; + $minkey = false; + foreach ($arraydata as $key => $value) { + if (!is_array($value)) { + if ($value > $minvalue) { + $minvalue = $value; + $minkey = $key; + } + } + } + return ($returnkey ? $minkey : $minvalue); + } + + /** + * @param string $XMLstring + * + * @return array|false + */ + public static function XML2array($XMLstring) { + if (function_exists('simplexml_load_string') && function_exists('libxml_disable_entity_loader')) { + // http://websec.io/2012/08/27/Preventing-XEE-in-PHP.html + // https://core.trac.wordpress.org/changeset/29378 + $loader = libxml_disable_entity_loader(true); + $XMLobject = simplexml_load_string($XMLstring, 'SimpleXMLElement', LIBXML_NOENT); + $return = self::SimpleXMLelement2array($XMLobject); + libxml_disable_entity_loader($loader); + return $return; + } + return false; + } + + /** + * @param SimpleXMLElement|array $XMLobject + * + * @return array + */ + public static function SimpleXMLelement2array($XMLobject) { + if (!is_object($XMLobject) && !is_array($XMLobject)) { + return $XMLobject; + } + $XMLarray = $XMLobject instanceof SimpleXMLElement ? get_object_vars($XMLobject) : $XMLobject; + foreach ($XMLarray as $key => $value) { + $XMLarray[$key] = self::SimpleXMLelement2array($value); + } + return $XMLarray; + } + + /** + * Returns checksum for a file from starting position to absolute end position. + * + * @param string $file + * @param int $offset + * @param int $end + * @param string $algorithm + * + * @return string|false + * @throws getid3_exception + */ + public static function hash_data($file, $offset, $end, $algorithm) { + if (!self::intValueSupported($end)) { + return false; + } + if (!in_array($algorithm, array('md5', 'sha1'))) { + throw new getid3_exception('Invalid algorithm ('.$algorithm.') in self::hash_data()'); + } + + $size = $end - $offset; + + $fp = fopen($file, 'rb'); + fseek($fp, $offset); + $ctx = hash_init($algorithm); + while ($size > 0) { + $buffer = fread($fp, min($size, getID3::FREAD_BUFFER_SIZE)); + hash_update($ctx, $buffer); + $size -= getID3::FREAD_BUFFER_SIZE; + } + $hash = hash_final($ctx); + fclose($fp); + + return $hash; + } + + /** + * @param string $filename_source + * @param string $filename_dest + * @param int $offset + * @param int $length + * + * @return bool + * @throws Exception + * + * @deprecated Unused, may be removed in future versions of getID3 + */ + public static function CopyFileParts($filename_source, $filename_dest, $offset, $length) { + if (!self::intValueSupported($offset + $length)) { + throw new Exception('cannot copy file portion, it extends beyond the '.round(PHP_INT_MAX / 1073741824).'GB limit'); + } + if (is_readable($filename_source) && is_file($filename_source) && ($fp_src = fopen($filename_source, 'rb'))) { + if (($fp_dest = fopen($filename_dest, 'wb'))) { + if (fseek($fp_src, $offset) == 0) { + $byteslefttowrite = $length; + while (($byteslefttowrite > 0) && ($buffer = fread($fp_src, min($byteslefttowrite, getID3::FREAD_BUFFER_SIZE)))) { + $byteswritten = fwrite($fp_dest, $buffer, $byteslefttowrite); + $byteslefttowrite -= $byteswritten; + } + fclose($fp_dest); + return true; + } else { + fclose($fp_src); + throw new Exception('failed to seek to offset '.$offset.' in '.$filename_source); + } + } else { + throw new Exception('failed to create file for writing '.$filename_dest); + } + } else { + throw new Exception('failed to open file for reading '.$filename_source); + } + } + + /** + * @param int $charval + * + * @return string + */ + public static function iconv_fallback_int_utf8($charval) { + if ($charval < 128) { + // 0bbbbbbb + $newcharstring = chr($charval); + } elseif ($charval < 2048) { + // 110bbbbb 10bbbbbb + $newcharstring = chr(($charval >> 6) | 0xC0); + $newcharstring .= chr(($charval & 0x3F) | 0x80); + } elseif ($charval < 65536) { + // 1110bbbb 10bbbbbb 10bbbbbb + $newcharstring = chr(($charval >> 12) | 0xE0); + $newcharstring .= chr(($charval >> 6) | 0xC0); + $newcharstring .= chr(($charval & 0x3F) | 0x80); + } else { + // 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb + $newcharstring = chr(($charval >> 18) | 0xF0); + $newcharstring .= chr(($charval >> 12) | 0xC0); + $newcharstring .= chr(($charval >> 6) | 0xC0); + $newcharstring .= chr(($charval & 0x3F) | 0x80); + } + return $newcharstring; + } + + /** + * ISO-8859-1 => UTF-8 + * + * @param string $string + * @param bool $bom + * + * @return string + */ + public static function iconv_fallback_iso88591_utf8($string, $bom=false) { + if (function_exists('utf8_encode')) { + return utf8_encode($string); + } + // utf8_encode() unavailable, use getID3()'s iconv_fallback() conversions (possibly PHP is compiled without XML support) + $newcharstring = ''; + if ($bom) { + $newcharstring .= "\xEF\xBB\xBF"; + } + for ($i = 0; $i < strlen($string); $i++) { + $charval = ord($string[$i]); + $newcharstring .= self::iconv_fallback_int_utf8($charval); + } + return $newcharstring; + } + + /** + * ISO-8859-1 => UTF-16BE + * + * @param string $string + * @param bool $bom + * + * @return string + */ + public static function iconv_fallback_iso88591_utf16be($string, $bom=false) { + $newcharstring = ''; + if ($bom) { + $newcharstring .= "\xFE\xFF"; + } + for ($i = 0; $i < strlen($string); $i++) { + $newcharstring .= "\x00".$string[$i]; + } + return $newcharstring; + } + + /** + * ISO-8859-1 => UTF-16LE + * + * @param string $string + * @param bool $bom + * + * @return string + */ + public static function iconv_fallback_iso88591_utf16le($string, $bom=false) { + $newcharstring = ''; + if ($bom) { + $newcharstring .= "\xFF\xFE"; + } + for ($i = 0; $i < strlen($string); $i++) { + $newcharstring .= $string[$i]."\x00"; + } + return $newcharstring; + } + + /** + * ISO-8859-1 => UTF-16LE (BOM) + * + * @param string $string + * + * @return string + */ + public static function iconv_fallback_iso88591_utf16($string) { + return self::iconv_fallback_iso88591_utf16le($string, true); + } + + /** + * UTF-8 => ISO-8859-1 + * + * @param string $string + * + * @return string + */ + public static function iconv_fallback_utf8_iso88591($string) { + if (function_exists('utf8_decode')) { + return utf8_decode($string); + } + // utf8_decode() unavailable, use getID3()'s iconv_fallback() conversions (possibly PHP is compiled without XML support) + $newcharstring = ''; + $offset = 0; + $stringlength = strlen($string); + while ($offset < $stringlength) { + if ((ord($string[$offset]) | 0x07) == 0xF7) { + // 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb + $charval = ((ord($string[($offset + 0)]) & 0x07) << 18) & + ((ord($string[($offset + 1)]) & 0x3F) << 12) & + ((ord($string[($offset + 2)]) & 0x3F) << 6) & + (ord($string[($offset + 3)]) & 0x3F); + $offset += 4; + } elseif ((ord($string[$offset]) | 0x0F) == 0xEF) { + // 1110bbbb 10bbbbbb 10bbbbbb + $charval = ((ord($string[($offset + 0)]) & 0x0F) << 12) & + ((ord($string[($offset + 1)]) & 0x3F) << 6) & + (ord($string[($offset + 2)]) & 0x3F); + $offset += 3; + } elseif ((ord($string[$offset]) | 0x1F) == 0xDF) { + // 110bbbbb 10bbbbbb + $charval = ((ord($string[($offset + 0)]) & 0x1F) << 6) & + (ord($string[($offset + 1)]) & 0x3F); + $offset += 2; + } elseif ((ord($string[$offset]) | 0x7F) == 0x7F) { + // 0bbbbbbb + $charval = ord($string[$offset]); + $offset += 1; + } else { + // error? throw some kind of warning here? + $charval = false; + $offset += 1; + } |