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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\EmailValidator; |
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abstract class Parser |
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{ |
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protected $warnings = array(); |
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protected $lexer; |
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protected $openedParenthesis = 0; |
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public function __construct(EmailLexer $lexer) |
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{ |
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$this->lexer = $lexer; |
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} |
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public function getWarnings() |
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{ |
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return $this->warnings; |
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} |
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abstract public function parse($str); |
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/** @return int */ |
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public function getOpenedParenthesis() |
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{ |
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return $this->openedParenthesis; |
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} |
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/** |
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* validateQuotedPair |
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*/ |
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protected function validateQuotedPair() |
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{ |
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View Code Duplication |
if (!($this->lexer->token['type'] === EmailLexer::INVALID |
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|| $this->lexer->token['type'] === EmailLexer::C_DEL)) { |
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throw new \InvalidArgumentException('ERR_EXPECTING_QPAIR'); |
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} |
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$this->warnings[] = EmailValidator::DEPREC_QP; |
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} |
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protected function parseComments() |
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{ |
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$this->openedParenthesis = 1; |
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$this->isUnclosedComment(); |
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$this->warnings[] = EmailValidator::CFWS_COMMENT; |
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while (!$this->lexer->isNextToken(EmailLexer::S_CLOSEPARENTHESIS)) { |
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if ($this->lexer->isNextToken(EmailLexer::S_OPENPARENTHESIS)) { |
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$this->openedParenthesis++; |
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} |
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$this->warnEscaping(); |
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$this->lexer->moveNext(); |
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} |
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$this->lexer->moveNext(); |
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if ($this->lexer->isNextTokenAny(array(EmailLexer::GENERIC, EmailLexer::S_EMPTY))) { |
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throw new \InvalidArgumentException('ERR_EXPECTING_ATEXT'); |
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} |
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if ($this->lexer->isNextToken(EmailLexer::S_AT)) { |
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$this->warnings[] = EmailValidator::DEPREC_CFWS_NEAR_AT; |
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} |
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} |
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protected function isUnclosedComment() |
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{ |
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try { |
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$this->lexer->find(EmailLexer::S_CLOSEPARENTHESIS); |
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return true; |
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} catch (\RuntimeException $e) { |
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throw new \InvalidArgumentException('ERR_UNCLOSEDCOMMENT'); |
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} |
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} |
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protected function parseFWS() |
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{ |
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$previous = $this->lexer->getPrevious(); |
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$this->checkCRLFInFWS(); |
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if ($this->lexer->token['type'] === EmailLexer::S_CR) { |
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throw new \InvalidArgumentException('ERR_CR_NO_LF'); |
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} |
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if ($this->lexer->isNextToken(EmailLexer::GENERIC) && $previous['type'] !== EmailLexer::S_AT) { |
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throw new \InvalidArgumentException('ERR_ATEXT_AFTER_CFWS'); |
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} |
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View Code Duplication |
if ($this->lexer->token['type'] === EmailLexer::S_LF || $this->lexer->token['type'] === EmailLexer::C_NUL) { |
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throw new \InvalidArgumentException('ERR_EXPECTING_CTEXT'); |
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} |
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if ($this->lexer->isNextToken(EmailLexer::S_AT) || $previous['type'] === EmailLexer::S_AT) { |
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$this->warnings[] = EmailValidator::DEPREC_CFWS_NEAR_AT; |
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} else { |
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$this->warnings[] = EmailValidator::CFWS_FWS; |
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} |
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} |
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protected function checkConsecutiveDots() |
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{ |
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View Code Duplication |
if ($this->lexer->token['type'] === EmailLexer::S_DOT && $this->lexer->isNextToken(EmailLexer::S_DOT)) { |
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throw new \InvalidArgumentException('ERR_CONSECUTIVEDOTS'); |
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} |
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} |
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protected function isFWS() |
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{ |
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if ($this->escaped()) { |
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return false; |
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} |
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if ($this->lexer->token['type'] === EmailLexer::S_SP || |
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$this->lexer->token['type'] === EmailLexer::S_HTAB || |
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$this->lexer->token['type'] === EmailLexer::S_CR || |
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$this->lexer->token['type'] === EmailLexer::S_LF || |
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$this->lexer->token['type'] === EmailLexer::CRLF |
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) { |
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return true; |
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} |
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return false; |
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} |
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protected function escaped() |
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{ |
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$previous = $this->lexer->getPrevious(); |
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if ($previous['type'] === EmailLexer::S_BACKSLASH |
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&& |
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$this->lexer->token['type'] !== EmailLexer::GENERIC |
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) { |
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return true; |
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} |
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return false; |
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} |
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protected function warnEscaping() |
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{ |
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if ($this->lexer->token['type'] !== EmailLexer::S_BACKSLASH) { |
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return false; |
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} |
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if ($this->lexer->isNextToken(EmailLexer::GENERIC)) { |
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throw new \InvalidArgumentException('ERR_EXPECTING_ATEXT'); |
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} |
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if (!$this->lexer->isNextTokenAny(array(EmailLexer::S_SP, EmailLexer::S_HTAB, EmailLexer::C_DEL))) { |
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return false; |
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} |
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$this->warnings[] = EmailValidator::DEPREC_QP; |
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return true; |
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} |
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protected function checkDQUOTE($hasClosingQuote) |
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{ |
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if ($this->lexer->token['type'] !== EmailLexer::S_DQUOTE) { |
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return $hasClosingQuote; |
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} |
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if ($hasClosingQuote) { |
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return $hasClosingQuote; |
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} |
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$previous = $this->lexer->getPrevious(); |
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if ($previous['type'] === EmailLexer::GENERIC && $this->lexer->isNextToken(EmailLexer::GENERIC)) { |
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throw new \InvalidArgumentException('ERR_EXPECTING_ATEXT'); |
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} |
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$this->warnings[] = EmailValidator::RFC5321_QUOTEDSTRING; |
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try { |
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$this->lexer->find(EmailLexer::S_DQUOTE); |
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$hasClosingQuote = true; |
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} catch (\Exception $e) { |
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throw new \InvalidArgumentException('ERR_UNCLOSEDQUOTEDSTR'); |
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} |
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return $hasClosingQuote; |
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} |
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protected function checkCRLFInFWS() |
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{ |
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if ($this->lexer->token['type'] !== EmailLexer::CRLF) { |
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return; |
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} |
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if ($this->lexer->isNextToken(EmailLexer::CRLF)) { |
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throw new \InvalidArgumentException('ERR_FWS_CRLF_X2'); |
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} |
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if (!$this->lexer->isNextTokenAny(array(EmailLexer::S_SP, EmailLexer::S_HTAB))) { |
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throw new \InvalidArgumentException('ERR_FWS_CRLF_END'); |
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} |
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} |
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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.