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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 $dquoteParsingResult; |
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} |
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} |
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if ($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 $commentsResult; |
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} |
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} |
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if ($this->lexer->token['type'] === EmailLexer::S_DOT && $this->lexer->isNextToken(EmailLexer::S_DOT)) { |
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return new InvalidEmail(new ConsecutiveDot(), $this->lexer->token['value']); |
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} |
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if ($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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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'), $this->lexer->token['value']); |
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} |
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if (!$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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} |
egulias /
EmailValidator
This check looks for parameters that have been defined for a function or method, but which are not used in the method body.