first commit
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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\Exception\InvalidEmail;
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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 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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if (false !== $lastAtPos = strrpos($email, '@')) {
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$host = substr($email, $lastAtPos + 1);
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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 $this->warnings;
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}
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protected function checkDNS($host)
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{
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$host = rtrim($host, '.') . '.';
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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($host, 'A') || checkdnsrr($host, 'AAAA');
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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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<?php
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namespace Egulias\EmailValidator\Validation;
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use Egulias\EmailValidator\EmailLexer;
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use Egulias\EmailValidator\Exception\InvalidEmail;
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use Egulias\EmailValidator\Warning\Warning;
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interface EmailValidation
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{
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/**
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* Returns true if the given email is valid.
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*
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* @param string $email The email you want to validate.
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* @param EmailLexer $emailLexer The email lexer.
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*
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* @return bool
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*/
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public function isValid($email, EmailLexer $emailLexer);
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/**
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* Returns the validation error.
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*
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* @return InvalidEmail|null
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*/
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public function getError();
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/**
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* Returns the validation warnings.
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*
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* @return Warning[]
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*/
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public function getWarnings();
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}
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<?php
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namespace Egulias\EmailValidator\Validation\Error;
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use Egulias\EmailValidator\Exception\InvalidEmail;
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class RFCWarnings extends InvalidEmail
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{
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const CODE = 997;
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const REASON = 'Warnings were found.';
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}
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<?php
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namespace Egulias\EmailValidator\Validation\Error;
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use Egulias\EmailValidator\Exception\InvalidEmail;
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class SpoofEmail extends InvalidEmail
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{
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const CODE = 998;
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const REASON = "The email contains mixed UTF8 chars that makes it suspicious";
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}
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<?php
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namespace Egulias\EmailValidator\Validation\Exception;
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use Exception;
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class EmptyValidationList extends \InvalidArgumentException
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{
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public function __construct($code = 0, Exception $previous = null)
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{
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parent::__construct("Empty validation list is not allowed", $code, $previous);
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}
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}
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<?php
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namespace Egulias\EmailValidator\Validation;
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use Egulias\EmailValidator\Exception\InvalidEmail;
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class MultipleErrors extends InvalidEmail
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{
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const CODE = 999;
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const REASON = "Accumulated errors for multiple validations";
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/**
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* @var array
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*/
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private $errors = [];
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public function __construct(array $errors)
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{
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$this->errors = $errors;
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parent::__construct();
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}
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public function getErrors()
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{
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return $this->errors;
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}
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}
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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\Validation\Exception\EmptyValidationList;
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class MultipleValidationWithAnd implements EmailValidation
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{
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/**
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* If one of validations gets failure skips all succeeding validation.
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* This means MultipleErrors will only contain a single error which first found.
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*/
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const STOP_ON_ERROR = 0;
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/**
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* All of validations will be invoked even if one of them got failure.
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* So MultipleErrors will contain all causes.
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*/
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const ALLOW_ALL_ERRORS = 1;
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/**
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* @var EmailValidation[]
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*/
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private $validations = [];
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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 MultipleErrors
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*/
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private $error;
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/**
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* @var bool
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*/
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private $mode;
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/**
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* @param EmailValidation[] $validations The validations.
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* @param int $mode The validation mode (one of the constants).
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*/
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public function __construct(array $validations, $mode = self::ALLOW_ALL_ERRORS)
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{
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if (count($validations) == 0) {
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throw new EmptyValidationList();
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}
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$this->validations = $validations;
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$this->mode = $mode;
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}
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/**
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* {@inheritdoc}
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*/
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public function isValid($email, EmailLexer $emailLexer)
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{
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$result = true;
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$errors = [];
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foreach ($this->validations as $validation) {
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$emailLexer->reset();
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$result = $result && $validation->isValid($email, $emailLexer);
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$this->warnings = array_merge($this->warnings, $validation->getWarnings());
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$errors = $this->addNewError($validation->getError(), $errors);
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if ($this->shouldStop($result)) {
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break;
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}
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}
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if (!empty($errors)) {
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$this->error = new MultipleErrors($errors);
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}
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return $result;
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}
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private function addNewError($possibleError, array $errors)
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{
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if (null !== $possibleError) {
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$errors[] = $possibleError;
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}
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return $errors;
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}
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private function shouldStop($result)
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{
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return !$result && $this->mode === self::STOP_ON_ERROR;
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}
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/**
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* {@inheritdoc}
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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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/**
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* {@inheritdoc}
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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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}
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@ -0,0 +1,42 @@
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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\Exception\InvalidEmail;
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use Egulias\EmailValidator\Validation\Error\RFCWarnings;
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class NoRFCWarningsValidation extends RFCValidation
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{
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/**
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* @var InvalidEmail
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*/
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private $error;
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/**
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* {@inheritdoc}
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*/
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public function isValid($email, EmailLexer $emailLexer)
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{
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if (!parent::isValid($email, $emailLexer)) {
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return false;
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}
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$ret = $this->getWarnings();
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if (empty($ret)) {
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return true;
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}
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$this->error = new RFCWarnings();
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return false;
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}
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/**
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* {@inheritdoc}
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*/
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public function getError()
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{
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return $this->error ?: parent::getError();
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}
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}
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@ -0,0 +1,49 @@
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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\EmailParser;
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use Egulias\EmailValidator\Exception\InvalidEmail;
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class RFCValidation 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 $emailLexer)
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{
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$this->parser = new EmailParser($emailLexer);
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try {
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$this->parser->parse((string)$email);
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} catch (InvalidEmail $invalid) {
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$this->error = $invalid;
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return false;
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}
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$this->warnings = $this->parser->getWarnings();
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return true;
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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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}
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@ -0,0 +1,45 @@
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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\Exception\InvalidEmail;
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use Egulias\EmailValidator\Validation\Error\SpoofEmail;
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use \Spoofchecker;
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class SpoofCheckValidation implements EmailValidation
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{
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/**
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* @var InvalidEmail
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*/
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private $error;
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public function __construct()
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{
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if (!extension_loaded('intl')) {
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throw new \LogicException(sprintf('The %s class requires the Intl extension.', __CLASS__));
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}
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}
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public function isValid($email, EmailLexer $emailLexer)
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{
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$checker = new Spoofchecker();
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$checker->setChecks(Spoofchecker::SINGLE_SCRIPT);
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if ($checker->isSuspicious($email)) {
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$this->error = new SpoofEmail();
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}
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return $this->error === null;
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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 [];
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}
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}
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