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<?php |
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/** |
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* This file is part of the ZBateson\MailMimeParser project. |
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* |
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* @license http://opensource.org/licenses/bsd-license.php BSD |
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*/ |
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namespace ZBateson\MailMimeParser\Parser; |
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use ZBateson\MailMimeParser\Parser\Part\UUEncodedPartHeaderContainerFactory; |
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use ZBateson\MailMimeParser\Parser\Proxy\ParserMimePartProxy; |
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use ZBateson\MailMimeParser\Parser\Proxy\ParserNonMimeMessageProxy; |
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use ZBateson\MailMimeParser\Parser\Proxy\ParserNonMimeMessageProxyFactory; |
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use ZBateson\MailMimeParser\Parser\Proxy\ParserPartProxy; |
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use ZBateson\MailMimeParser\Parser\Proxy\ParserUUEncodedPartProxy; |
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use ZBateson\MailMimeParser\Parser\Proxy\ParserUUEncodedPartProxyFactory; |
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/** |
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* Parses content for non-mime messages and uu-encoded child parts. |
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* |
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* @author Zaahid Bateson |
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*/ |
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class NonMimeParserService extends AbstractParserService |
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{ |
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protected UUEncodedPartHeaderContainerFactory $partHeaderContainerFactory; |
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public function __construct( |
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ParserNonMimeMessageProxyFactory $parserNonMimeMessageProxyFactory, |
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ParserUUEncodedPartProxyFactory $parserUuEncodedPartProxyFactory, |
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PartBuilderFactory $partBuilderFactory, |
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UUEncodedPartHeaderContainerFactory $uuEncodedPartHeaderContainerFactory |
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) { |
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parent::__construct($parserNonMimeMessageProxyFactory, $parserUuEncodedPartProxyFactory, $partBuilderFactory); |
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$this->partHeaderContainerFactory = $uuEncodedPartHeaderContainerFactory; |
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} |
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/** |
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* Always returns true, and should therefore be the last parser reached by |
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* a ParserManager. |
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*/ |
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public function canParse(PartBuilder $part) : bool |
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{ |
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return true; |
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} |
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/** |
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* Creates a UUEncodedPartHeaderContainer attached to a PartBuilder, and |
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* calls $this->parserManager->createParserProxyFor(). |
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* |
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* It also sets the PartBuilder's stream part start pos and content start |
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* pos to that of $parent->getNextParStart() (since a 'begin' line is read |
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* prior to another child being created, see parseNextPart()). |
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*/ |
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private function createPart(ParserNonMimeMessageProxy $parent) : ParserPartProxy |
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{ |
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$hc = $this->partHeaderContainerFactory->newInstance($parent->getNextPartMode(), $parent->getNextPartFilename()); |
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$pb = $this->partBuilderFactory->newChildPartBuilder($hc, $parent); |
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$proxy = $this->parserManager->createParserProxyFor($pb); |
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$pb->setStreamPartStartPos($parent->getNextPartStart()); |
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$pb->setStreamContentStartPos($parent->getNextPartStart()); |
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return $proxy; |
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} |
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/** |
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* Reads content from the passed ParserPartProxy's stream till a uu-encoded |
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* 'begin' line is found, setting $proxy->setStreamPartContentAndEndPos() to |
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* the last byte read before the begin line. |
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* |
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* @param ParserNonMimeMessageProxy|ParserUUEncodedPartProxy $proxy |
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*/ |
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private function parseNextPart(ParserPartProxy $proxy) : static |
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{ |
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$handle = $proxy->getMessageResourceHandle(); |
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while (!\feof($handle)) { |
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$start = \ftell($handle); |
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$line = \trim(MessageParserService::readLine($handle)); |
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if (\preg_match('/^begin ([0-7]{3}) (.*)$/', $line, $matches)) { |
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$proxy->setNextPartStart($start); |
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$proxy->setNextPartMode((int) $matches[1]); |
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$proxy->setNextPartFilename($matches[2]); |
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return $this; |
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} |
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$proxy->setStreamPartAndContentEndPos(\ftell($handle)); |
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} |
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return $this; |
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} |
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public function parseContent(ParserPartProxy $proxy) : static |
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{ |
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$handle = $proxy->getMessageResourceHandle(); |
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if ($proxy->getNextPartStart() !== null || \feof($handle)) { |
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return $this; |
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} |
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if ($proxy->getStreamContentStartPos() === null) { |
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$proxy->setStreamContentStartPos(\ftell($handle)); |
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} |
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$this->parseNextPart($proxy); |
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return $this; |
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} |
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public function parseNextChild(ParserMimePartProxy $proxy) : ?ParserPartProxy |
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{ |
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$handle = $proxy->getMessageResourceHandle(); |
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if ($proxy->getNextPartStart() === null || \feof($handle)) { |
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return null; |
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} |
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$child = $this->createPart($proxy); |
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$proxy->clearNextPart(); |
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return $child; |
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} |
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} |
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zbateson /
mail-mime-parser
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