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<?php |
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/** |
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* It's free open-source software released under the MIT License. |
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* |
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* @author Anatoly Nekhay <[email protected]> |
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* @copyright Copyright (c) 2018, Anatoly Nekhay |
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* @license https://github.com/sunrise-php/http-router/blob/master/LICENSE |
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* @link https://github.com/sunrise-php/http-router |
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*/ |
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declare(strict_types=1); |
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namespace Sunrise\Http\Router\Helper; |
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use function trim; |
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/** |
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* @since 3.0.0 |
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*/ |
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final class HeaderParser |
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{ |
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private const IN_IDENTIFIER = 1; |
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private const IN_PARAMETER_NAME = 2; |
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private const IN_PARAMETER_VALUE = 4; |
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private const IN_QUOTED_STRING = 8; |
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private const IN_QUOTED_PAIR = 16; |
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private const MAX_FIELD_VALUE_LENGTH = 512; |
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/** |
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* @link https://datatracker.ietf.org/doc/html/rfc7230#section-3.2.6 |
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*/ |
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private const RFC7230_FIELD_VALUE_CHARSET = [ |
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"\x09" => 1, "\x20" => 1, "\x21" => 1, "\x22" => 1, "\x23" => 1, "\x24" => 1, "\x25" => 1, "\x26" => 1, |
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"\x27" => 1, "\x28" => 1, "\x29" => 1, "\x2a" => 1, "\x2b" => 1, "\x2c" => 1, "\x2d" => 1, "\x2e" => 1, |
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"\x2f" => 1, "\x30" => 1, "\x31" => 1, "\x32" => 1, "\x33" => 1, "\x34" => 1, "\x35" => 1, "\x36" => 1, |
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"\x37" => 1, "\x38" => 1, "\x39" => 1, "\x3a" => 1, "\x3b" => 1, "\x3c" => 1, "\x3d" => 1, "\x3e" => 1, |
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"\x3f" => 1, "\x40" => 1, "\x41" => 1, "\x42" => 1, "\x43" => 1, "\x44" => 1, "\x45" => 1, "\x46" => 1, |
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"\x47" => 1, "\x48" => 1, "\x49" => 1, "\x4a" => 1, "\x4b" => 1, "\x4c" => 1, "\x4d" => 1, "\x4e" => 1, |
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"\x4f" => 1, "\x50" => 1, "\x51" => 1, "\x52" => 1, "\x53" => 1, "\x54" => 1, "\x55" => 1, "\x56" => 1, |
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"\x57" => 1, "\x58" => 1, "\x59" => 1, "\x5a" => 1, "\x5b" => 1, "\x5c" => 1, "\x5d" => 1, "\x5e" => 1, |
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"\x5f" => 1, "\x60" => 1, "\x61" => 1, "\x62" => 1, "\x63" => 1, "\x64" => 1, "\x65" => 1, "\x66" => 1, |
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"\x67" => 1, "\x68" => 1, "\x69" => 1, "\x6a" => 1, "\x6b" => 1, "\x6c" => 1, "\x6d" => 1, "\x6e" => 1, |
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"\x6f" => 1, "\x70" => 1, "\x71" => 1, "\x72" => 1, "\x73" => 1, "\x74" => 1, "\x75" => 1, "\x76" => 1, |
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"\x77" => 1, "\x78" => 1, "\x79" => 1, "\x7a" => 1, "\x7b" => 1, "\x7c" => 1, "\x7d" => 1, "\x7e" => 1, |
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"\x80" => 1, "\x81" => 1, "\x82" => 1, "\x83" => 1, "\x84" => 1, "\x85" => 1, "\x86" => 1, "\x87" => 1, |
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"\x88" => 1, "\x89" => 1, "\x8a" => 1, "\x8b" => 1, "\x8c" => 1, "\x8d" => 1, "\x8e" => 1, "\x8f" => 1, |
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"\x90" => 1, "\x91" => 1, "\x92" => 1, "\x93" => 1, "\x94" => 1, "\x95" => 1, "\x96" => 1, "\x97" => 1, |
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"\x98" => 1, "\x99" => 1, "\x9a" => 1, "\x9b" => 1, "\x9c" => 1, "\x9d" => 1, "\x9e" => 1, "\x9f" => 1, |
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"\xa0" => 1, "\xa1" => 1, "\xa2" => 1, "\xa3" => 1, "\xa4" => 1, "\xa5" => 1, "\xa6" => 1, "\xa7" => 1, |
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"\xa8" => 1, "\xa9" => 1, "\xaa" => 1, "\xab" => 1, "\xac" => 1, "\xad" => 1, "\xae" => 1, "\xaf" => 1, |
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"\xb0" => 1, "\xb1" => 1, "\xb2" => 1, "\xb3" => 1, "\xb4" => 1, "\xb5" => 1, "\xb6" => 1, "\xb7" => 1, |
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"\xb8" => 1, "\xb9" => 1, "\xba" => 1, "\xbb" => 1, "\xbc" => 1, "\xbd" => 1, "\xbe" => 1, "\xbf" => 1, |
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"\xc0" => 1, "\xc1" => 1, "\xc2" => 1, "\xc3" => 1, "\xc4" => 1, "\xc5" => 1, "\xc6" => 1, "\xc7" => 1, |
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"\xc8" => 1, "\xc9" => 1, "\xca" => 1, "\xcb" => 1, "\xcc" => 1, "\xcd" => 1, "\xce" => 1, "\xcf" => 1, |
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"\xd0" => 1, "\xd1" => 1, "\xd2" => 1, "\xd3" => 1, "\xd4" => 1, "\xd5" => 1, "\xd6" => 1, "\xd7" => 1, |
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"\xd8" => 1, "\xd9" => 1, "\xda" => 1, "\xdb" => 1, "\xdc" => 1, "\xdd" => 1, "\xde" => 1, "\xdf" => 1, |
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"\xe0" => 1, "\xe1" => 1, "\xe2" => 1, "\xe3" => 1, "\xe4" => 1, "\xe5" => 1, "\xe6" => 1, "\xe7" => 1, |
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"\xe8" => 1, "\xe9" => 1, "\xea" => 1, "\xeb" => 1, "\xec" => 1, "\xed" => 1, "\xee" => 1, "\xef" => 1, |
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"\xf0" => 1, "\xf1" => 1, "\xf2" => 1, "\xf3" => 1, "\xf4" => 1, "\xf5" => 1, "\xf6" => 1, "\xf7" => 1, |
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"\xf8" => 1, "\xf9" => 1, "\xfa" => 1, "\xfb" => 1, "\xfc" => 1, "\xfd" => 1, "\xfe" => 1, "\xff" => 1, |
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]; |
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/** |
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* @return array<int<0, max>, array{0: string, 1: array<string, string>}> |
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67
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*/ |
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public static function parseHeader(string $header): array |
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{ |
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if ($header === '') { |
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return []; |
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} |
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67 |
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$cursor = self::IN_IDENTIFIER; |
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$value = 0; |
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67 |
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$param = -1; |
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/** @var array<int<0, max>, array{0?: string, 1?: array<int<0, max>, array{0?: string, 1?: string}>}> $values */ |
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67 |
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$values = []; |
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67 |
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for ($offset = 0; isset($header[$offset]) && $offset < self::MAX_FIELD_VALUE_LENGTH; $offset++) { |
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67 |
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if (!isset(self::RFC7230_FIELD_VALUE_CHARSET[$header[$offset]])) { |
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2 |
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continue; |
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} |
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86
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67 |
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if ($header[$offset] === ',' && !($cursor & self::IN_QUOTED_STRING)) { |
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$cursor = self::IN_IDENTIFIER; |
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$value++; |
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$param = -1; |
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continue; |
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} |
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67 |
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if ($header[$offset] === ';' && !($cursor & self::IN_QUOTED_STRING)) { |
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30 |
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$cursor = self::IN_PARAMETER_NAME; |
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$param++; |
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continue; |
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} |
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67 |
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if ($header[$offset] === '=' && ($cursor & self::IN_PARAMETER_NAME)) { |
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$cursor = self::IN_PARAMETER_VALUE; |
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continue; |
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} |
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67 |
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if ($header[$offset] === '"' && ($cursor & self::IN_PARAMETER_VALUE) && !($cursor & self::IN_QUOTED_PAIR)) { |
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15 |
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$cursor ^= self::IN_QUOTED_STRING; |
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15 |
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continue; |
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} |
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67 |
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if ($header[$offset] === '\\' && ($cursor & self::IN_QUOTED_STRING) && !($cursor & self::IN_QUOTED_PAIR)) { |
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4 |
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$cursor |= self::IN_QUOTED_PAIR; |
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4 |
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continue; |
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} |
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67 |
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if (($cursor & self::IN_IDENTIFIER)) { |
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$values[$value][0] ??= ''; |
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67 |
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$values[$value][0] .= $header[$offset]; |
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continue; |
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} |
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30 |
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if (($cursor & self::IN_PARAMETER_NAME)) { |
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$values[$value][1][$param][0] ??= ''; |
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$values[$value][1][$param][0] .= $header[$offset]; |
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continue; |
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} |
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30 |
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if (($cursor & self::IN_PARAMETER_VALUE)) { |
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30 |
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$values[$value][1][$param][1] ??= ''; |
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30 |
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$values[$value][1][$param][1] .= $header[$offset]; |
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$cursor &= ~self::IN_QUOTED_PAIR; |
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30 |
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continue; |
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} |
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} |
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128
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67 |
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$result = []; |
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67 |
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foreach ($values as $index => $value) { |
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67 |
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unset($values[$index]); |
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$value[0] = trim($value[0] ?? ''); |
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67 |
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if ($value[0] === '') { |
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1 |
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continue; |
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} |
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67 |
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$params = []; |
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67 |
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foreach ($value[1] ?? [] as $param) { |
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30 |
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$param[0] = trim($param[0] ?? ''); |
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30 |
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if ($param[0] === '') { |
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1 |
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continue; |
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} |
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30 |
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$params[$param[0]] = trim($param[1] ?? ''); |
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} |
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$result[$index] = [$value[0], $params]; |
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} |
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150
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return $result; |
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151
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} |
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} |
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sunrise-php /
http-router
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