| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | namespace EndelWar\Spammer\Command; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | use Faker; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | use Symfony\Component\Console\Command\Command; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | use Symfony\Component\Console\Formatter\OutputFormatterStyle; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | use Symfony\Component\Console\Input\InputInterface; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | use Symfony\Component\Console\Input\InputOption; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | use Symfony\Component\Console\Output\OutputInterface; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | class SpammerCommand extends Command | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 | 32 |  |     protected function configure() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 | 32 |  |         $count = 10; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 | 32 |  |         $smtpServerIp = '127.0.0.1'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 | 32 |  |         $smtpServerPort = '25'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 | 32 |  |         $locale = 'en_US'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |         $this | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 | 32 |  |             ->setName('spammer') | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 | 32 |  |             ->setDescription('Send random content email') | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 | 32 |  |             ->setDefinition( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |                 array( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 | 32 |  |                     new InputOption('server', 's', InputOption::VALUE_OPTIONAL, 'SMTP Server ip to send email to', $smtpServerIp), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 | 32 |  |                     new InputOption('port', 'p', InputOption::VALUE_OPTIONAL, 'SMTP Server port to send email to', $smtpServerPort), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 | 32 |  |                     new InputOption('count', 'c', InputOption::VALUE_OPTIONAL, 'Number of email to send', $count), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 | 32 |  |                     new InputOption('locale', 'l', InputOption::VALUE_OPTIONAL, 'Locale to use', $locale), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 | 32 |  |                     new InputOption('to', 't', InputOption::VALUE_OPTIONAL, 'To address or domain'), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 | 32 |  |                     new InputOption('from', 'f', InputOption::VALUE_OPTIONAL, 'From address or domain'), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |                 ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |             ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 | 32 |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |      * @param InputInterface $input | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |      * @param OutputInterface $output | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |      * @return integer | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |      * @throws \InvalidArgumentException | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 | 31 |  |     protected function execute(InputInterface $input, OutputInterface $output) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 | 31 |  |         $validInput = $this->validateInput($input); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 | 12 |  |         $style = new OutputFormatterStyle('green', null, array('bold')); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 | 12 |  |         $output->getFormatter()->setStyle('bold', $style); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 | 12 |  |         $output->writeln('<comment>Spammer starting up</comment>'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 | 12 |  |         $message = '<info>Sending </info><bold>' . $validInput['count'] . '</bold>' . | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 | 12 |  |             '<info> email to server </info><bold>' . $validInput['smtpServerIp'] . '</bold>' . | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 | 12 |  |             '<info>:</info><bold>' . $validInput['smtpServerPort'] . '</bold>'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 | 12 |  |         if ($validInput['from'] !== '') { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 | 3 |  |             $message .= '<info> from </info><bold>' . $validInput['from'] . '</bold>'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 | 12 |  |         if ($validInput['to'] !== '') { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 | 3 |  |             $message .= '<info> to </info><bold>' . $validInput['to'] . '</bold>'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 | 12 |  |         $output->write($message); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 | 12 |  |         $output->writeln('<info> using locale </info><bold>' . $validInput['locale'] . '</bold>'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 | 12 |  |         $faker = Faker\Factory::create($validInput['locale']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 | 12 |  |         $faker->seed(mt_rand()); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 | 12 |  |         $transport = \Swift_SmtpTransport::newInstance()->setHost($validInput['smtpServerIp'])->setPort( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 | 12 |  |             $validInput['smtpServerPort'] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 | 12 |  |         $mailer = \Swift_Mailer::newInstance($transport); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 | 12 |  |         $numSent = 0; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 | 12 |  |         for ($i = 0; $i < $validInput['count']; $i++) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 | 12 |  |             $emaiText = $faker->realText(mt_rand(200, 1000)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 | 12 |  |             $email_subject = implode(' ', $faker->words(mt_rand(3, 7))); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 | 12 |  |             $message = \Swift_Message::newInstance($email_subject); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 | 12 |  |             $from = $this->getFromTo($faker, $validInput['from']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 | 12 |  |             $message->setFrom($from); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 | 12 |  |             $to = $this->getFromTo($faker, $validInput['to']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 | 12 |  |             $message->setTo($to); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 | 12 |  |             $message->setBody($emaiText, 'text/plain'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 | 12 |  |             $message->addPart('<p>' . $emaiText . '</p>', 'text/html'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 | 12 |  |             $output->writeln('Sending email nr. ' . ($i + 1) . ': ' . key($from) . ' => ' . key($to)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |             try { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 | 12 |  |                 $numSent += $mailer->send($message); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 | 1 |  |             } catch (\Swift_TransportException $swe) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 | 1 |  |                 $output->writeln('<error>' . $swe->getMessage() . '</error>'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 | 1 |  |                 return 1; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 | 11 |  |         $output->writeln('Sent ' . $numSent . ' messages'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 | 11 |  |         unset($faker); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 | 11 |  |         return 0; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |      * @param $faker | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |      * @param $validInputFromTo | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |      * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 | 12 |  |     private function getFromTo($faker, $validInputFromTo) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |         // generate fake address and name if null | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 | 12 |  |         if ($validInputFromTo === '') { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 | 11 |  |             return [$faker->safeEmail => $faker->name]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |         // use user submitted email if is email | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 | 5 |  |         if (filter_var($validInputFromTo, FILTER_VALIDATE_EMAIL)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 | 3 |  |             return [$validInputFromTo => $faker->name]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |         // get a random username and attach it to domain supplied by user | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 | 2 |  |         $user = strstr($faker->safeEmail, '@', true); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 | 2 |  |         return [$user . '@' . $validInputFromTo => $faker->name]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |      * @param InputInterface $input | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |      * @throws \InvalidArgumentException | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |      * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 | 31 |  |     protected function validateInput(InputInterface $input) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 | 31 |  |         $validInput = array(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 | 31 |  |         $validInput['smtpServerIp'] = $input->getOption('server'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 | 31 |  |         $this->validateInputServerIP($validInput['smtpServerIp']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 | 29 |  |         $validInput['smtpServerPort'] = $input->getOption('port'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 | 29 |  |         $this->validateInputServerPort($validInput['smtpServerPort']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 | 26 |  |         $validInput['count'] = (int)$input->getOption('count'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 | 26 |  |         $this->validateInputCount($validInput['count']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 | 25 |  |         $validInput['locale'] = $input->getOption('locale'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 | 25 |  |         $validInput['to'] = $this->validateInputToFrom($input->getOption('to')); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 | 25 |  |         $validInput['from'] = $this->validateInputToFrom($input->getOption('from')); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 | 12 |  |         return $validInput; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |      * @param string $ip | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |      * @throws \InvalidArgumentException | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 153 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 154 | 31 |  |     private function validateInputServerIP($ip) | 
            
                                                                        
                            
            
                                    
            
            
                | 155 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 156 | 31 |  |         if (!filter_var($ip, FILTER_VALIDATE_IP)) { | 
            
                                                                        
                            
            
                                    
            
            
                | 157 | 2 |  |             throw new \InvalidArgumentException('server option is not a valid IP'); | 
            
                                                                        
                            
            
                                    
            
            
                | 158 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 159 | 29 |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |      * @param int $port | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |      * @throws \InvalidArgumentException | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 | 29 |  |     private function validateInputServerPort($port) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 | 29 |  |         if (!is_numeric($port) || ($port < 0 || $port > 65535)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 | 3 |  |             throw new \InvalidArgumentException('server port must be a number between 0 and 65536'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 | 26 |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |      * @param int $count | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |      * @throws \InvalidArgumentException | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 | 26 |  |     private function validateInputCount($count) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 | 26 |  |         if ($count < 1) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 | 1 |  |             throw new \InvalidArgumentException('count must be equal or greater than 1 (you want to send email, right?)'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 | 25 |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |      * @param $string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  |      * @return string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |      * @throws \InvalidArgumentException | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 | 25 |  |     private function validateInputToFrom($string) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 | 25 |  |         if (null === $string) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 | 24 |  |             return ''; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 | 18 |  |         $string = strtolower($string); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 | 18 |  |         if (strpos($string, '@') !== false) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 | 10 |  |             if (filter_var($string, FILTER_VALIDATE_EMAIL)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 | 3 |  |                 return $string; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 | 8 |  |             if ($this->filter_var_domain($string)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 | 2 |  |                 return $string; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 | 13 |  |         throw new \InvalidArgumentException('to and from must be a valid email address or a FQDN'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |      * @param $domain | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  |      * @return bool|mixed | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 | 8 |  |     private function filter_var_domain($domain) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 | 8 |  |         $domain = strtolower($domain); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 | 8 |  |         $regex = "/^((?=[a-z0-9-]{1,63}\.)(xn--)?[a-z0-9]+(-[a-z0-9]+)*\.)+[a-z]{2,63}$/"; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 | 8 |  |         return preg_match($regex, $domain); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 219 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 220 |  |  |  |