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<?php |
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namespace Egulias\EmailValidator\Validation; |
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use Egulias\EmailValidator\EmailLexer; |
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use Egulias\EmailValidator\Warning\NoDNSMXRecord; |
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use Egulias\EmailValidator\Exception\NoDNSRecord; |
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class DNSCheckValidation implements EmailValidation |
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{ |
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/** |
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* @var EmailParser |
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*/ |
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private $parser; |
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/** |
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* @var array |
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*/ |
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private $warnings = []; |
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/** |
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* @var InvalidEmail |
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*/ |
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private $error; |
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public function isValid($email, EmailLexer $emailLexer) |
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{ |
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// use the input to check DNS if we cannot extract something similar to a domain |
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$host = $email; |
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// Arguable pattern to extract the domain. Not aiming to validate the domain nor the email |
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$pattern = "/^[a-z'0-9]+([._-][a-z'0-9]+)*@([a-z0-9]+([._-][a-z0-9]+)+)+$/"; |
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if (preg_match($pattern, $email, $result)) { |
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$host = $this->extractHost($result); |
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} |
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return $this->checkDNS($host); |
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} |
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public function getError() |
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{ |
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return $this->error; |
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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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private function extractHost(array $result) |
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{ |
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foreach ($result as $match) { |
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$onlyDomainPattern = "/^([a-z0-9]+([._-][a-z0-9]+))+$/"; |
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if (preg_match($onlyDomainPattern, $match, $domainResult)) { |
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return $domainResult[0]; |
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} |
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} |
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} |
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protected function checkDNS($host) |
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{ |
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$Aresult = true; |
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$MXresult = checkdnsrr($host, 'MX'); |
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if (!$MXresult) { |
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$this->warnings[NoDNSMXRecord::CODE] = new NoDNSMXRecord(); |
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$Aresult = checkdnsrr($host, 'A'); |
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if (!$Aresult) { |
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$this->error = new NoDNSRecord(); |
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} |
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} |
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return $MXresult || $Aresult; |
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} |
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} |
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egulias /
EmailValidator
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..