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   1  <?php
   2  class MP_Bounce extends MP_bounce_
   3  {
   4      public $option_name        = MailPress_bounce_handling::option_name;
   5  
   6      public $class            = __CLASS__;
   7      public $log_name        = MailPress_bounce_handling::process_name;
   8      public $log_option_name        = 'bounce_handling';
   9      public $log_title        = 'Bounce Handling Report ( Bounce in mailbox : %1$s )';
  10  
  11      public $cron_name        = 'MailPress_schedule_bounce_handling';
  12  
  13      public $meta_key        = MailPress_bounce_handling::meta_key;
  14  
  15      const headers            = array( 'Subject', 'Return-Path', 'Return-path', 'Received', 'To', 'X-Failed-Recipients', 'Final-Recipient' );
  16  
  17  	function is_bounce()
  18      {
  19          $prefix     = preg_quote( substr( $this->config['Return-Path'], 0, strpos( $this->config['Return-Path'], '@' ) ) . '+' );
  20          $domain     = preg_quote( substr( $this->config['Return-Path'], strpos( $this->config['Return-Path'], '@' ) + 1 ) );
  21          $user_mask    = preg_quote( '{{_user_id}}' );
  22  
  23          $this->pop3->get_headers_deep( $this->message_id, self::headers );
  24  
  25          $this->bounce_email = false;
  26          $this->mail_id      = false;
  27          $this->mp_user_id   = false;
  28  
  29  // subject
  30          $subject = $this->pop3->get_header( 'Subject' );
  31  
  32          if ( empty( $subject ) )
  33          {
  34              $bm = '            ! ** ERROR ** empty header : Subject (?) ';
  35              $this->local_log[] = '!' . $bm . str_repeat( ' ', $this->bt - strlen( $bm ) ) . '!';
  36              return false;
  37          }
  38  
  39          $bm = ' Subject    ! ==> ' . $subject;
  40          $this->local_log[] = '!' . $bm . str_repeat( ' ', $this->bt - strlen( $bm ) ) . '!';
  41  
  42          foreach( $this->pop3->headers as $tag => $headers )
  43          {
  44              if ( $tag == 'Subject' ) continue;
  45              foreach( $headers as $header )
  46              {
  47                  if ( strpos( $header, $this->config['Return-Path'] ) !== false ) continue;
  48  
  49                  switch ( true )
  50                  {
  51                      case ( preg_match( "#{$prefix}[0-9]*\+[0-9]*@{$domain}#", $header ) ) :
  52                          preg_match_all( "/{$prefix}([0-9]*)\+([0-9]*)@{$domain}/", $header, $matches, PREG_SET_ORDER );
  53                          if ( empty( $matches ) ) continue 2;
  54  
  55                          $this->bounce_email = $matches[0][0];
  56                          $this->mail_id        = $matches[0][1];
  57                          $this->mp_user_id   = $matches[0][2];
  58                      break;
  59                      case ( preg_match( "#{$prefix}[0-9]*\+$user_mask@{$domain}#", $header ) ) :
  60                          preg_match_all( "/$prefix([0-9]*)\+$user_mask@$domain/", $header, $matches, PREG_SET_ORDER );
  61                          if ( empty( $matches ) ) continue 2;
  62  
  63                          $this->bounce_email    = $matches[0][0];
  64                          $this->mail_id        = $matches[0][1];
  65                          if ( !$mail = MP_Mail::get( $this->mail_id ) )    continue 2;
  66                          if ( !MailPress::is_email( $mail->toemail ) )    continue 2;
  67                          $this->mp_user_id     = MP_User::get_id_by_email( $mail->toemail );
  68                          if ( !$this->mp_user_id ) continue 2;
  69                      break;
  70                      case ( preg_match_all( "/[a-zA-Z0-9!#$%&\'*+\/=?^_`{|}~\.-]+@[\._a-zA-Z0-9-]{2,}+/i", $header, $matches, PREG_SET_ORDER ) && ( $this->bounce_email = MailPress::is_email( $matches[0][0] ) ) ) :
  71                          switch( $tag )
  72                          {
  73                              case 'X-Failed-Recipients' :
  74                              case 'Final-Recipient' :
  75  
  76                                  $this->mail_id = -1;
  77                                  $this->mp_user_id = MP_User::get_id_by_email( $this->bounce_email );
  78                                  if ( !$this->mp_user_id ) continue 3;
  79                              break;
  80                              default :
  81                                  continue 3;
  82                              break;
  83                          }
  84                      break;
  85                      default :
  86                          continue 2;
  87                      break;
  88                  }
  89              }
  90  
  91              if ( $this->mail_id && $this->mp_user_id && $this->bounce_email )
  92              {
  93                  break;
  94              }
  95          }
  96  
  97          return ( $this->mail_id && $this->mp_user_id && $this->bounce_email );
  98      }
  99  }