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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\Proxy\ParserPartProxy; |
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/** |
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* Manages a prioritized list of IParser objects for parsing messages and parts |
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* and creating proxied parts. |
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* |
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* The default ParserManager sets up a MimeParser in priority 0, and a |
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* NonMimeParser in priority 1. |
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* |
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* @author Zaahid Bateson |
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*/ |
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class ParserManager |
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{ |
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/** |
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* @var IParser[] List of parsers in order of priority (0 is highest |
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* priority). |
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*/ |
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protected $parsers = []; |
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public function __construct(MimeParser $mimeParser, NonMimeParser $nonMimeParser) |
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{ |
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$this->setParsers([$mimeParser, $nonMimeParser]); |
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} |
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/** |
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* Overrides the internal prioritized list of parses with the passed list, |
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* calling $parser->setParserManager($this) on each one. |
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* |
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*/ |
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public function setParsers(array $parsers) : self |
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{ |
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foreach ($parsers as $parser) { |
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$parser->setParserManager($this); |
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} |
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$this->parsers = $parsers; |
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return $this; |
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} |
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/** |
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* Adds an IParser at the highest priority (up front), calling |
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* $parser->setParserManager($this) on it. |
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* |
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* @param IParser $parser The parser to add. |
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*/ |
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public function prependParser(IParser $parser) : self |
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{ |
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$parser->setParserManager($this); |
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\array_unshift($this->parsers, $parser); |
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return $this; |
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} |
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/** |
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* Creates a ParserPartProxy for the passed $partBuilder using a compatible |
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* IParser. |
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* |
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* Loops through registered IParsers calling 'canParse()' on each with the |
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* passed PartBuilder, then calling either 'getParserMessageProxyFactory()' |
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* or 'getParserPartProxyFactory()' depending on if the PartBuilder has a |
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* parent, and finally calling 'newInstance' on the returned |
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* ParserPartProxyFactory passing it the IParser, and returning the new |
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* ParserPartProxy instance that was created. |
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* |
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* @param PartBuilder $partBuilder The PartBuilder to wrap in a proxy with |
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* an IParser |
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* @return ?ParserPartProxy The created ParserPartProxy tied to a new |
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* IMessagePart and associated IParser. |
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*/ |
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public function createParserProxyFor(PartBuilder $partBuilder) |
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{ |
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foreach ($this->parsers as $parser) { |
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if ($parser->canParse($partBuilder)) { |
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$factory = ($partBuilder->getParent() === null) ? |
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$parser->getParserMessageProxyFactory() : |
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$parser->getParserPartProxyFactory(); |
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return $factory->newInstance($partBuilder, $parser); |
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} |
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} |
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return null; |
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} |
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} |
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zbateson /
mail-mime-parser
