1<?php 2namespace Egulias\EmailValidator\Parser; 3 4use Egulias\EmailValidator\EmailLexer; 5use Egulias\EmailValidator\Parser\Parser; 6use Egulias\EmailValidator\Result\ValidEmail; 7use Egulias\EmailValidator\Result\InvalidEmail; 8use Egulias\EmailValidator\Warning\CFWSWithFWS; 9use Egulias\EmailValidator\Warning\QuotedString; 10use Egulias\EmailValidator\Result\Reason\ExpectingATEXT; 11use Egulias\EmailValidator\Result\Reason\UnclosedQuotedString; 12use Egulias\EmailValidator\Result\Result; 13 14class DoubleQuote extends PartParser 15{ 16 public function parse() : Result 17 { 18 19 $validQuotedString = $this->checkDQUOTE(); 20 if($validQuotedString->isInvalid()) return $validQuotedString; 21 22 $special = array( 23 EmailLexer::S_CR => true, 24 EmailLexer::S_HTAB => true, 25 EmailLexer::S_LF => true 26 ); 27 28 $invalid = array( 29 EmailLexer::C_NUL => true, 30 EmailLexer::S_HTAB => true, 31 EmailLexer::S_CR => true, 32 EmailLexer::S_LF => true 33 ); 34 $setSpecialsWarning = true; 35 36 $this->lexer->moveNext(); 37 38 while ($this->lexer->token['type'] !== EmailLexer::S_DQUOTE && null !== $this->lexer->token['type']) { 39 if (isset($special[$this->lexer->token['type']]) && $setSpecialsWarning) { 40 $this->warnings[CFWSWithFWS::CODE] = new CFWSWithFWS(); 41 $setSpecialsWarning = false; 42 } 43 if ($this->lexer->token['type'] === EmailLexer::S_BACKSLASH && $this->lexer->isNextToken(EmailLexer::S_DQUOTE)) { 44 $this->lexer->moveNext(); 45 } 46 47 $this->lexer->moveNext(); 48 49 if (!$this->escaped() && isset($invalid[$this->lexer->token['type']])) { 50 return new InvalidEmail(new ExpectingATEXT("Expecting ATEXT between DQUOTE"), $this->lexer->token['value']); 51 } 52 } 53 54 $prev = $this->lexer->getPrevious(); 55 56 if ($prev['type'] === EmailLexer::S_BACKSLASH) { 57 $validQuotedString = $this->checkDQUOTE(); 58 if($validQuotedString->isInvalid()) return $validQuotedString; 59 } 60 61 if (!$this->lexer->isNextToken(EmailLexer::S_AT) && $prev['type'] !== EmailLexer::S_BACKSLASH) { 62 return new InvalidEmail(new ExpectingATEXT("Expecting ATEXT between DQUOTE"), $this->lexer->token['value']); 63 } 64 65 return new ValidEmail(); 66 } 67 68 protected function checkDQUOTE() : Result 69 { 70 $previous = $this->lexer->getPrevious(); 71 72 if ($this->lexer->isNextToken(EmailLexer::GENERIC) && $previous['type'] === EmailLexer::GENERIC) { 73 $description = 'https://tools.ietf.org/html/rfc5322#section-3.2.4 - quoted string should be a unit'; 74 return new InvalidEmail(new ExpectingATEXT($description), $this->lexer->token['value']); 75 } 76 77 try { 78 $this->lexer->find(EmailLexer::S_DQUOTE); 79 } catch (\Exception $e) { 80 return new InvalidEmail(new UnclosedQuotedString(), $this->lexer->token['value']); 81 } 82 $this->warnings[QuotedString::CODE] = new QuotedString($previous['value'], $this->lexer->token['value']); 83 84 return new ValidEmail(); 85 } 86 87}