ref: c0cdb1186a8135521b2f75fdfdd6fd8d712a25ff
converter/server/vendor/rybakit/msgpack/src/Packer.php
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<?php /* * This file is part of the rybakit/msgpack.php package. * * (c) Eugene Leonovich <gen.work@gmail.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace MessagePack; use MessagePack\Exception\InvalidOptionException; use MessagePack\Exception\PackingFailedException; use MessagePack\TypeTransformer\Packable; class Packer { private const UTF8_REGEX = '/\A(?: [\x00-\x7F]++ # ASCII | [\xC2-\xDF][\x80-\xBF] # non-overlong 2-byte | \xE0[\xA0-\xBF][\x80-\xBF] # excluding overlongs | [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} # straight 3-byte | \xED[\x80-\x9F][\x80-\xBF] # excluding surrogates | \xF0[\x90-\xBF][\x80-\xBF]{2} # planes 1-3 | [\xF1-\xF3][\x80-\xBF]{3} # planes 4-15 | \xF4[\x80-\x8F][\x80-\xBF]{2} # plane 16 )*+\z/x'; private $isDetectStrBin; private $isForceStr; private $isDetectArrMap; private $isForceArr; private $isForceFloat32; /** * @var Packable[]|null */ private $transformers; /** * @param PackOptions|int|null $options * * @throws InvalidOptionException */ public function __construct($options = null) { if (null === $options) { $options = PackOptions::fromDefaults(); } elseif (!$options instanceof PackOptions) { $options = PackOptions::fromBitmask($options); } $this->isDetectStrBin = $options->isDetectStrBinMode(); $this->isForceStr = $options->isForceStrMode(); $this->isDetectArrMap = $options->isDetectArrMapMode(); $this->isForceArr = $options->isForceArrMode(); $this->isForceFloat32 = $options->isForceFloat32Mode(); } public function registerTransformer(Packable $transformer) : self { $this->transformers[] = $transformer; return $this; } public function pack($value) { if (\is_int($value)) { return $this->packInt($value); } if (\is_string($value)) { if ($this->isForceStr) { return $this->packStr($value); } if ($this->isDetectStrBin) { return \preg_match(self::UTF8_REGEX, $value) ? $this->packStr($value) : $this->packBin($value); } return $this->packBin($value); } if (\is_array($value)) { if ($this->isDetectArrMap) { if (!isset($value[0]) && !\array_key_exists(0, $value)) { return empty($value) ? "\x90" : $this->packMap($value); } return \array_values($value) === $value ? $this->packArray($value) : $this->packMap($value); } return $this->isForceArr ? $this->packArray($value) : $this->packMap($value); } if (null === $value) { return "\xc0"; } if (\is_bool($value)) { return $value ? "\xc3" : "\xc2"; } if (\is_float($value)) { return $this->packFloat($value); } if ($value instanceof Ext) { return $this->packExt($value->type, $value->data); } if ($this->transformers) { foreach ($this->transformers as $transformer) { if (null !== $packed = $transformer->pack($this, $value)) { return $packed; } } } throw PackingFailedException::unsupportedType($value); } public function packNil() { return "\xc0"; } public function packBool($bool) { return $bool ? "\xc3" : "\xc2"; } public function packInt($int) { if ($int >= 0) { if ($int <= 0x7f) { return \chr($int); } if ($int <= 0xff) { return "\xcc".\chr($int); } if ($int <= 0xffff) { return "\xcd".\chr($int >> 8).\chr($int); } if ($int <= 0xffffffff) { return \pack('CN', 0xce, $int); } return \pack('CJ', 0xcf, $int); } if ($int >= -0x20) { return \chr(0xe0 | $int); } if ($int >= -0x80) { return "\xd0".\chr($int); } if ($int >= -0x8000) { return "\xd1".\chr($int >> 8).\chr($int); } if ($int >= -0x80000000) { return \pack('CN', 0xd2, $int); } return \pack('CJ', 0xd3, $int); } public function packFloat($float) { return $this->isForceFloat32 ? "\xca".\pack('G', $float) : "\xcb".\pack('E', $float); } public function packStr($str) { $length = \strlen($str); if ($length < 32) { return \chr(0xa0 | $length).$str; } if ($length <= 0xff) { return "\xd9".\chr($length).$str; } if ($length <= 0xffff) { return "\xda".\chr($length >> 8).\chr($length).$str; } return \pack('CN', 0xdb, $length).$str; } public function packBin($str) { $length = \strlen($str); if ($length <= 0xff) { return "\xc4".\chr($length).$str; } if ($length <= 0xffff) { return "\xc5".\chr($length >> 8).\chr($length).$str; } return \pack('CN', 0xc6, $length).$str; } public function packArray($array) { $data = $this->packArrayHeader(\count($array)); foreach ($array as $val) { $data .= $this->pack($val); } return $data; } public function packArrayHeader($size) { if ($size <= 0xf) { return \chr(0x90 | $size); } if ($size <= 0xffff) { return "\xdc".\chr($size >> 8).\chr($size); } return \pack('CN', 0xdd, $size); } public function packMap($map) { $data = $this->packMapHeader(\count($map)); if ($this->isForceStr) { foreach ($map as $key => $val) { $data .= \is_string($key) ? $this->packStr($key) : $this->packInt($key); $data .= $this->pack($val); } return $data; } if ($this->isDetectStrBin) { foreach ($map as $key => $val) { $data .= \is_string($key) ? (\preg_match(self::UTF8_REGEX, $key) ? $this->packStr($key) : $this->packBin($key)) : $this->packInt($key); $data .= $this->pack($val); } return $data; } foreach ($map as $key => $val) { $data .= \is_string($key) ? $this->packBin($key) : $this->packInt($key); $data .= $this->pack($val); } return $data; } public function packMapHeader($size) { if ($size <= 0xf) { return \chr(0x80 | $size); } if ($size <= 0xffff) { return "\xde".\chr($size >> 8).\chr($size); } return \pack('CN', 0xdf, $size); } public function packExt($type, $data) { $length = \strlen($data); switch ($length) { case 1: return "\xd4".\chr($type).$data; case 2: return "\xd5".\chr($type).$data; case 4: return "\xd6".\chr($type).$data; case 8: return "\xd7".\chr($type).$data; case 16: return "\xd8".\chr($type).$data; } if ($length <= 0xff) { return "\xc7".\chr($length).\chr($type).$data; } if ($length <= 0xffff) { return \pack('CnC', 0xc8, $length, $type).$data; } return \pack('CNC', 0xc9, $length, $type).$data; } } |