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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of Badcow DNS Library. |
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* |
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* (c) Samuel Williams <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Badcow\DNS; |
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use Badcow\DNS\Parser\Tokens; |
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use Badcow\DNS\Rdata\APL; |
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use Badcow\DNS\Rdata\LOC; |
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use Badcow\DNS\Rdata\RRSIG; |
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use Badcow\DNS\Rdata\SOA; |
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use Badcow\DNS\Rdata\TXT; |
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class AlignedRdataFormatters |
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{ |
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public static $rdataFormatters = [ |
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SOA::TYPE => __CLASS__.'::SOA', |
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APL::TYPE => __CLASS__.'::APL', |
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LOC::TYPE => __CLASS__.'::LOC', |
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RRSIG::TYPE => __CLASS__.'::RRSIG', |
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TXT::TYPE => __CLASS__.'::TXT', |
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]; |
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private function __construct() |
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{ |
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} |
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/** |
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* @return callable[] |
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*/ |
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public static function getRdataFormatters(): array |
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{ |
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return [ |
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SOA::TYPE => __CLASS__.'::SOA', |
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APL::TYPE => __CLASS__.'::APL', |
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LOC::TYPE => __CLASS__.'::LOC', |
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RRSIG::TYPE => __CLASS__.'::RRSIG', |
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TXT::TYPE => __CLASS__.'::TXT', |
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]; |
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} |
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/** |
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* @param SOA $rdata |
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* @param int $padding |
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* |
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* @return string |
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*/ |
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public static function SOA(SOA $rdata, int $padding): string |
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{ |
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$vars = [ |
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$rdata->getMname(), |
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$rdata->getRname(), |
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$rdata->getSerial(), |
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$rdata->getRefresh(), |
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$rdata->getRetry(), |
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$rdata->getExpire(), |
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$rdata->getMinimum(), |
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]; |
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$longestVarLength = max(array_map('strlen', $vars)); |
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return Tokens::OPEN_BRACKET.Tokens::LINE_FEED. |
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self::makeLine((string) $rdata->getMname(), 'MNAME', $longestVarLength, $padding). |
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self::makeLine((string) $rdata->getRname(), 'RNAME', $longestVarLength, $padding). |
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self::makeLine((string) $rdata->getSerial(), 'SERIAL', $longestVarLength, $padding). |
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self::makeLine((string) $rdata->getRefresh(), 'REFRESH', $longestVarLength, $padding). |
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self::makeLine((string) $rdata->getRetry(), 'RETRY', $longestVarLength, $padding). |
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self::makeLine((string) $rdata->getExpire(), 'EXPIRE', $longestVarLength, $padding). |
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self::makeLine((string) $rdata->getMinimum(), 'MINIMUM', $longestVarLength, $padding). |
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str_repeat(' ', $padding).Tokens::CLOSE_BRACKET; |
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} |
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/** |
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* @param APL $rdata |
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* @param int $padding |
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* |
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* @return string |
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*/ |
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public static function APL(APL $rdata, int $padding): string |
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{ |
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$blocks = explode(' ', $rdata->toText()); |
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$longestVarLength = max(array_map('strlen', $blocks)); |
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$string = Tokens::OPEN_BRACKET.Tokens::LINE_FEED; |
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foreach ($blocks as $block) { |
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$string .= self::makeLine($block, null, $longestVarLength, $padding); |
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} |
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return $string.str_repeat(' ', $padding).Tokens::CLOSE_BRACKET; |
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} |
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/** |
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* Split the TXT string into 40 character lines if the string is larger than 50 characters. |
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* |
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* @param TXT $txt |
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* @param int $padding |
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* |
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* @return string |
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*/ |
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public static function TXT(TXT $txt, int $padding): string |
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{ |
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if (null === $txt->getText() || strlen($txt->getText()) <= 50) { |
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return $txt->toText(); |
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} |
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$lines = str_split($txt->getText(), 40); |
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$padString = str_repeat(Tokens::SPACE, $padding); |
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$rdata = Tokens::OPEN_BRACKET.Tokens::SPACE; |
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foreach ($lines as $line) { |
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$rdata .= Tokens::LINE_FEED.$padString.Tokens::SPACE.Tokens::SPACE. |
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Tokens::DOUBLE_QUOTES.$line.Tokens::DOUBLE_QUOTES; |
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} |
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$rdata .= Tokens::LINE_FEED.$padString.Tokens::CLOSE_BRACKET; |
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return $rdata; |
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} |
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/** |
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* Splits the RRSIG Signature into 32 character chunks. |
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* |
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* @param RRSIG $rrsig |
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* @param int $padding |
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* |
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* @return string |
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*/ |
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public static function RRSIG(RRSIG $rrsig, int $padding): string |
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{ |
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$strPadding = str_repeat(Tokens::SPACE, $padding); |
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$signatureParts = str_split($rrsig->getSignature(), 32); |
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$rdata = $rrsig->getTypeCovered().Tokens::SPACE. |
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$rrsig->getAlgorithm().Tokens::SPACE. |
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$rrsig->getLabels().Tokens::SPACE. |
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$rrsig->getOriginalTtl().Tokens::SPACE.Tokens::OPEN_BRACKET.Tokens::LINE_FEED. |
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$strPadding. |
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$rrsig->getSignatureExpiration()->format(RRSIG::TIME_FORMAT).Tokens::SPACE. |
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$rrsig->getSignatureInception()->format(RRSIG::TIME_FORMAT).Tokens::SPACE. |
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$rrsig->getKeyTag().Tokens::SPACE. |
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$rrsig->getSignersName(); |
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foreach ($signatureParts as $line) { |
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$rdata .= Tokens::LINE_FEED.$strPadding.$line; |
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} |
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$rdata .= Tokens::SPACE.Tokens::CLOSE_BRACKET; |
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return $rdata; |
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} |
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/** |
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* @param LOC $loc |
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* @param int $padding |
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* |
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* @return string |
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*/ |
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public static function LOC(LOC $loc, int $padding): string |
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{ |
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$parts = [ |
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'LATITUDE' => (string) $loc->getLatitude(LOC::FORMAT_DMS), |
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'LONGITUDE' => (string) $loc->getLongitude(LOC::FORMAT_DMS), |
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'ALTITUDE' => sprintf('%.2fm', $loc->getAltitude()), |
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'SIZE' => sprintf('%.2fm', $loc->getSize()), |
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'HORIZONTAL PRECISION' => sprintf('%.2fm', $loc->getHorizontalPrecision()), |
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'VERTICAL PRECISION' => sprintf('%.2fm', $loc->getVerticalPrecision()), |
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]; |
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$longestVarLength = max(array_map('strlen', $parts)); |
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$rdata = Tokens::OPEN_BRACKET.Tokens::LINE_FEED; |
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foreach ($parts as $comment => $text) { |
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$rdata .= self::makeLine($text, $comment, $longestVarLength, $padding); |
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} |
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$rdata .= str_repeat(Tokens::SPACE, $padding).Tokens::CLOSE_BRACKET; |
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return $rdata; |
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} |
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/** |
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* Returns a padded line with comment. |
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* |
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* @param string $text |
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* @param string $comment |
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* @param int $longestVarLength |
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* @param int $padding |
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* |
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* @return string |
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*/ |
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public static function makeLine(string $text, ?string $comment, int $longestVarLength, int $padding): string |
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{ |
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$output = str_repeat(Tokens::SPACE, $padding).str_pad($text, $longestVarLength); |
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if (null !== $comment) { |
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$output .= Tokens::SPACE.Tokens::SEMICOLON.Tokens::SPACE.$comment; |
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} |
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return $output.Tokens::LINE_FEED; |
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} |
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} |
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Badcow /
DNS
