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<?php |
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namespace Egulias\EmailValidator\Parser; |
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use Egulias\EmailValidator\EmailLexer; |
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use Egulias\EmailValidator\Result\Result; |
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use Egulias\EmailValidator\Result\ValidEmail; |
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use Egulias\EmailValidator\Result\InvalidEmail; |
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use Egulias\EmailValidator\Warning\LocalTooLong; |
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use Egulias\EmailValidator\Result\Reason\DotAtEnd; |
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use Egulias\EmailValidator\Result\Reason\DotAtStart; |
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use Egulias\EmailValidator\Result\Reason\ConsecutiveDot; |
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use Egulias\EmailValidator\Result\Reason\ExpectingATEXT; |
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use Egulias\EmailValidator\Parser\CommentStrategy\LocalComment; |
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class LocalPart extends PartParser |
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{ |
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/** |
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* @var string |
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*/ |
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private $localPart = ''; |
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public function parse() : Result |
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{ |
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$this->lexer->startRecording(); |
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while ($this->lexer->token['type'] !== EmailLexer::S_AT && null !== $this->lexer->token['type']) { |
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if ($this->hasDotAtStart()) { |
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return new InvalidEmail(new DotAtStart(), $this->lexer->token['value']); |
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} |
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if ($this->lexer->token['type'] === EmailLexer::S_DQUOTE) { |
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$dquoteParsingResult = $this->parseDoubleQuote(); |
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//Invalid double quote parsing |
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if($dquoteParsingResult->isInvalid()) { |
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return $dquoteParsingResult; |
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} |
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} |
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View Code Duplication |
if ($this->lexer->token['type'] === EmailLexer::S_OPENPARENTHESIS || |
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$this->lexer->token['type'] === EmailLexer::S_CLOSEPARENTHESIS ) { |
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$commentsResult = $this->parseComments(); |
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//Invalid comment parsing |
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if($commentsResult->isInvalid()) { |
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return $commentsResult; |
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} |
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} |
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View Code Duplication |
if ($this->lexer->token['type'] === EmailLexer::S_DOT && $this->lexer->isNextToken(EmailLexer::S_DOT)) { |
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return new InvalidEmail(new ConsecutiveDot(), $this->lexer->token['value']); |
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} |
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View Code Duplication |
if ($this->lexer->token['type'] === EmailLexer::S_DOT && |
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$this->lexer->isNextToken(EmailLexer::S_AT) |
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) { |
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return new InvalidEmail(new DotAtEnd(), $this->lexer->token['value']); |
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} |
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$resultEscaping = $this->validateEscaping(); |
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if ($resultEscaping->isInvalid()) { |
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return $resultEscaping; |
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} |
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$resultToken = $this->validateTokens(false); |
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if ($resultToken->isInvalid()) { |
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return $resultToken; |
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} |
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$resultFWS = $this->parseLocalFWS(); |
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if($resultFWS->isInvalid()) { |
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return $resultFWS; |
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} |
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$this->lexer->moveNext(); |
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} |
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$this->lexer->stopRecording(); |
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$this->localPart = rtrim($this->lexer->getAccumulatedValues(), '@'); |
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if (strlen($this->localPart) > LocalTooLong::LOCAL_PART_LENGTH) { |
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$this->warnings[LocalTooLong::CODE] = new LocalTooLong(); |
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} |
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return new ValidEmail(); |
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} |
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protected function validateTokens(bool $hasComments) : Result |
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{ |
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$invalidTokens = array( |
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EmailLexer::S_COMMA => EmailLexer::S_COMMA, |
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EmailLexer::S_CLOSEBRACKET => EmailLexer::S_CLOSEBRACKET, |
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EmailLexer::S_OPENBRACKET => EmailLexer::S_OPENBRACKET, |
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EmailLexer::S_GREATERTHAN => EmailLexer::S_GREATERTHAN, |
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EmailLexer::S_LOWERTHAN => EmailLexer::S_LOWERTHAN, |
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EmailLexer::S_COLON => EmailLexer::S_COLON, |
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EmailLexer::S_SEMICOLON => EmailLexer::S_SEMICOLON, |
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EmailLexer::INVALID => EmailLexer::INVALID |
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); |
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View Code Duplication |
if (isset($invalidTokens[$this->lexer->token['type']])) { |
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return new InvalidEmail(new ExpectingATEXT('Invalid token found'), $this->lexer->token['value']); |
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} |
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return new ValidEmail(); |
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} |
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public function localPart() : string |
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{ |
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return $this->localPart; |
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} |
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private function parseLocalFWS() : Result |
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{ |
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$foldingWS = new FoldingWhiteSpace($this->lexer); |
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$resultFWS = $foldingWS->parse(); |
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if ($resultFWS->isValid()) { |
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$this->warnings = array_merge($this->warnings, $foldingWS->getWarnings()); |
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} |
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return $resultFWS; |
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} |
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private function hasDotAtStart() : bool |
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{ |
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return $this->lexer->token['type'] === EmailLexer::S_DOT && null === $this->lexer->getPrevious()['type']; |
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} |
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private function parseDoubleQuote() : Result |
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{ |
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$dquoteParser = new DoubleQuote($this->lexer); |
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$parseAgain = $dquoteParser->parse(); |
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$this->warnings = array_merge($this->warnings, $dquoteParser->getWarnings()); |
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return $parseAgain; |
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} |
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protected function parseComments(): Result |
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{ |
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$commentParser = new Comment($this->lexer, new LocalComment()); |
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$result = $commentParser->parse(); |
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$this->warnings = array_merge($this->warnings, $commentParser->getWarnings()); |
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if($result->isInvalid()) { |
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return $result; |
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} |
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return $result; |
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} |
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private function validateEscaping() : Result |
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{ |
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//Backslash found |
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if ($this->lexer->token['type'] !== EmailLexer::S_BACKSLASH) { |
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return new ValidEmail(); |
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} |
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if ($this->lexer->isNextToken(EmailLexer::GENERIC)) { |
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return new InvalidEmail(new ExpectingATEXT('Found ATOM after escaping'), $this->lexer->token['value']); |
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} |
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View Code Duplication |
if (!$this->lexer->isNextTokenAny(array(EmailLexer::S_SP, EmailLexer::S_HTAB, EmailLexer::C_DEL))) { |
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return new ValidEmail(); |
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} |
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return new ValidEmail(); |
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} |
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} |
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.