Bina fungsi e-mel lanjutan menggunakan IMAP dan PHP

public function actionInbox() {
    
    // moves inbox messages to @filtering
    // runs frequently 
    $r = new Remote();
    $r->processInbox();	  
    
}

public function open($account_id, $mailbox='',$options=NULL) {
  // opens folder in an IMAP account
  $account = Account::model()->findByPk($account_id);
  $this->hostname = $account->address;
  if (!stristr($this->hostname,'{'))
    $this->hostname = '{'.$this->hostname.'}';
  $cred = Account::model()->getCredentials($account->cred);
  if ($account->provider == Account::PROVIDER_ICLOUD) {
    // icloud accepts only name part of mailbox e.g. stevejobs vs. stevejobs@icloud.com
    $temp = explode('@',$cred[0]);
    $cred[0]=$temp[0];
  }
  $this->stream = imap_open($this->hostname.$mailbox,$cred[0],$cred[1],$options,1) or die('Cannot connect to mail server - account_id:'.$account_id .' '.print_r(imap_errors()));
}

// lookup folder_id of this account's INBOX
$folder_id = Folder::model()->lookup($account_id,$this->path_inbox);
$this->open($account_id,$this->path_inbox);
$cnt=0;
$message_limit= 50; // break after n messages to prevent timeout
echo 'Sort since: '.date("j F Y",$tstamp);           
// imap_search date format 30 November 2013
 $recent_messages = @imap_search($this->stream, 'SINCE "'.date("j F Y",$tstamp).'"',SE_UID); 
 if ($recent_messages===false) continue; // to do - continue into next account
 $result = imap_fetch_overview($this->stream, implode(',',array_slice($recent_messages,0,$message_limit)),FT_UID);

foreach ($result as $item) {         
   if (!$this->checkExecutionTime($time_start)) break;
   // get msg header and stream uid
   $msg = $this->parseHeader($item); 

  public function parseHeader($header) {
    // parses header object returned from imap_fetch_overview    
    if (!isset($header->from)) {
      return false;
    } else {
      $from_arr = imap_rfc822_parse_adrlist($header->from,'gmail.com');
      $fi = $from_arr[0];
      $msg = array(
        "uid" => (isset($header->uid))
              ? $header->uid : 0,
         "personal" => (isset($fi->personal))
            ? @imap_utf8($fi->personal) : "",
          "email" => (isset($fi->mailbox) && isset($fi->host))
              ? $fi->mailbox . "@" . $fi->host : "",
          "mailbox" => (isset($fi->mailbox))
            ? $fi->mailbox : "",
          "host" => (isset($fi->host))
            ? $fi->host : "",
          "subject" => (isset($header->subject))
              ? @imap_utf8($header->subject) : "",
          "message_id" => (isset($header->message_id))
                ? $header->message_id : "",
          "in_reply_to" => (isset($header->in_reply_to))
                    ? $header->in_reply_to : "",
          "udate" => (isset($header->udate))
              ? $header->udate : 0,
          "date_str" => (isset($header->date))
              ? $header->date : ""
      );    
      // handles fetch with uid and rfc header parsing
      if ($msg['udate']==0 && isset($header->date)) {
          $msg['udate']=strtotime($header->date);
      }
      $msg['rx_email']='';        
      $msg['rx_personal']='';
        $msg['rx_mailbox']='';
        $msg['rx_host']='';
      if (isset($header->to)) {        
        $to_arr = imap_rfc822_parse_adrlist($header->to,'gmail.com');
        $to_info = $to_arr[0];
        if (isset($to_info->mailbox) && isset($to_info->host)) {
          $msg['rx_email']=$to_info->mailbox.'@'.$to_info->host;
        }
        if (isset($to_info->personal))
          $msg['rx_personal']=$to_info->personal;
        if (isset($to_info->mailbox))
          $msg['rx_mailbox']=$to_info->mailbox;
        if (isset($to_info->host))
          $msg['rx_host']=$to_info->host;
      }
      return $msg;
    }
  }

   // skip any system messages
   if ($msg['email']==$system_email) continue;
    // if udate is too old, skip msg
    if (time()-$msg['udate']>$this->scan_seconds) continue; // skip msg
    // default action
     $action = self::ACTION_MOVE_FILTERED;
     $isNew = $s->isNew($account_id,$msg["email"]);
    // look up sender, if new, create them
    $sender_id = $s->add($user_id,$account_id,$msg["personal"], $msg["mailbox"], $msg["host"],0);                       
    $sender = Sender::model()->findByPk($sender_id);
     // create a message in db if needed
     $message_id = $m->add($user_id,$account_id,0,$sender_id,$msg['message_id'],$msg['subject'],$msg['udate'],$msg['in_reply_to']);        
        $message = Message::model()->findByPk($message_id);

         if ($message['status'] == Message::STATUS_FILTERED ||
   	    $message['status'] == Message::STATUS_REVIEW ||
   	    ($message['status'] == Message::STATUS_TRAINED && $message['folder_id'] <> $folder_id) ||
   	    ($message['status'] == Message::STATUS_ROUTED && $message['folder_id'] <> $folder_id))
   	    {
     	  // then it's a training
   	    $action = self::ACTION_TRAIN_INBOX;     	    
   	  } else if (($message['status'] == Message::STATUS_TRAINED || $message['status'] == Message::STATUS_ROUTED) && $message['folder_id'] == $folder_id) {
   	    // if trained already or routed to inbox already, skip it
   	    $action = self::ACTION_SKIP;  
   	    echo 'Trained previously, skip ';lb();   	  
   	    continue;  
   	  }

   if ($action == self::ACTION_MOVE_FILTERED) {
     $cnt+=1;         
     if ($sender->exclude_quiet_hours == Sender::EQH_YES or !$this->isQuietHours($user_id)) {
       // send smartphone notifications based on sender
       if ($sender->alert==Sender::ALERT_YES) {
         $this->notify($sender,$message,Monitor::NOTIFY_SENDER);
       }
       // send notifications based on keywords
       if (AlertKeyword::model()->scan($msg)) {
         $this->notify($sender,$message,Monitor::NOTIFY_KEYWORD);
       }               
     }               
     // move imap msg to +Filtering
     echo 'Moving to +Filtering';lb();
     //$result = @imap_mail_move($this->stream,$msg['uid'],$this->path_filtering,CP_UID);
     $result = $this->messageMoveHandler($msg['uid'],$this->path_filtering,false);             
     if ($result) {
       echo 'moved<br />';
       $m->setStatus($message_id,Message::STATUS_FILTERED);
     }
   } 

else if ($action == self::ACTION_TRAIN_INBOX) {
     // set sender folder_id to inbox
     echo 'Train to Inbox';lb();
     $m->setStatus($message_id,Message::STATUS_TRAINED);
     // only train sender when message is newer than last setting
     if ($msg['udate']>=$sender['last_trained']) {
       $s->setFolder($sender_id,$folder_id);
     } 
   }

public function actionIndex()
{
  // processes messages in @Filtering to appropriate folders
  $r = new Remote();
  $r->processFiltering();
  // Record timestamp of cronjob for monitoring
  $file = file_put_contents('./protected/runtime/cronstamp.txt',time(),FILE_USE_INCLUDE_PATH);	  
}

$tstamp = time()-(7*24*60*60); // 7 days ago
$recent_messages = @imap_search($this->stream, 'SINCE "'.date("j F Y",$tstamp).'"',SE_UID);
if ($recent_messages===false) continue; // to do - continue into next account
$result = imap_fetch_overview($this->stream, implode(',',array_slice($recent_messages,0,$message_limit)),FT_UID);
foreach ($result as $item) {         
      $cnt+=1;
      if (!$this->checkExecutionTime($time_start)) break;
      // get msg header and stream uid
      $msg = $this->parseHeader($item);            

 // Set the default action to move to the review folder
 $action = self::ACTION_MOVE_REVIEW;
 $destination_folder =0;
 // look up & create recipient
 $recipient_id = $r->add($user_id,$account_id,$msg['rx_email'],0);
 $routeByRx = $this->routeByRecipient($recipient_id);
 if ($routeByRx!==false) {
  $action = $routeByRx->action;
  $destination_folder = $routeByRx->destination_folder;
 }            

 // look up sender, if new, create them
 $sender_id = $s->add($user_id,$account_id,$msg["personal"], $msg["mailbox"], $msg["host"],0);                       
 $sender = Sender::model()->findByPk($sender_id);
 // if sender destination known, route to folder
 if ($destination_folder ==0 && $sender['folder_id'] > 0) {
   $action = self::ACTION_ROUTE_FOLDER;  
   $destination_folder = $sender['folder_id'];      
 }
 

// whitelist verified senders go to inbox
 if ($sender->is_verified==1 && $sender['folder_id'] ==0 && UserSetting::model()->useWhitelisting($user_id)) {
   // place message in inbox
   $action = self::ACTION_ROUTE_FOLDER;  
   $destination_folder = Folder::model()->lookup($account_id,$this->path_inbox);             
 }

  // create a message in db
      $message = Message::model()->findByAttributes(array('message_id'=>$msg['message_id']));
  if (!empty($message)) {
    // message exists already, 
	  $message_id = $message->id;    	  
  } else {
    $message_id = $m->add($user_id,$account_id,0,$sender_id,$msg['message_id'],$msg['subject'],$msg['udate'],$msg['in_reply_to']);         
  }

  if ($recipient_id!==false) $m->setRecipient($message_id,$recipient_id);
  if ($action == self::ACTION_MOVE_REVIEW) {
    echo 'Moving to +Filtering/Review';lb();
    //$result = @imap_mail_move($this->stream,$msg['uid'],$this->path_review,CP_UID);
    $result = $this->messageMoveHandler($msg['uid'],$this->path_review,false);               
    if ($result) {
      echo 'moved<br />';
      $m->setStatus($message_id,Message::STATUS_REVIEW);
    }      
 } else if ($action == self::ACTION_ROUTE_FOLDER || $action == self::ACTION_ROUTE_FOLDER_BY_RX) {
  // lookup folder name by folder_id
  $folder = Folder::model()->findByPk($destination_folder);       
  // if inbox & quiet hours, don't route right now
  if (strtolower($folder['name'])=='inbox' and $sender->exclude_quiet_hours == Sender::EQH_NO and $this->isQuietHours($user_id)) continue;
  echo 'Moving to '.$folder['name'];lb();
  $mark_read = Folder::model()->isMarkRead($folder['mark_read']) || Sender::model()->isMarkRead($sender['mark_read']);
  //$result = @imap_mail_move($this->stream,$msg['uid'],$folder['name'],CP_UID);
  $result = $this->messageMoveHandler($msg['uid'],$folder['name'],$mark_read);
  if ($result) {
    echo 'moved<br />';
    $m->setStatus($message_id,Message::STATUS_ROUTED);         
    $m->setFolder($message_id,$destination_folder);
  }
}

 public function challengeSender($user_id,$account_id,$sender,$message) {
   // whitelist email challenge
   $yg = new Yiigun();
   $ac = Account::model()->findByPk($account_id);
   if (!empty($ac['challenge_name']))
     $from = $ac['challenge_name'].' <no-reply@'.$yg->mg_domain.'>';
    else
      $from = 'Filter <no-reply@'.$yg->mg_domain.'>';      
   $cred = Account::model()->getCredentials($ac->cred);
   $account_email = $cred[0];
   unset($cred); 
   // safety: checks no recent email
   if ($sender->last_emailed>(time()-(48*60*60))) return false;   
   if ($sender->isBot($sender['email'])) {
     // to do - can also set this person to bulk by default
     return false;
   }
$link=Yii::app()->getBaseUrl(true)."/sender/verify/s/".$sender->id."/m/".$message->id.'/u/'.$message->udate;
    $subject = 'Please verify the message you sent to '.$account_email;
    $body="<p>Hi,<br /><br /> I'm trying to reduce unsolicited email. Could you please verify your email address by clicking the link below:<br /><a href=\"".$link.'">'.$link.'</a><br /><br />Verifying your email address will help speed your message into my inbox. Thanks for your assistance!</p>';
    $yg->send_html_message($from, $sender['email'], $subject,$body);
    // update last_emailed
    $sender->touchLastEmailed($sender->id);
 }

  public function actionVerify($s = 0, $m=0,$u=0) {
    // verify that secure msg url from digest is valid, log in user, show msg
    $sender_id = $s;
    $message_id = $m;
    $udate = $u;
    $msg = Message::model()->findByPk($message_id);
    if (!empty($msg) && $msg->sender_id == $sender_id && $msg->udate == $udate) {
      $result = 'Thank you for your assistance. I\'ll respond to your email as soon as possible.';
      $a = new Advanced();
      $a->verifySender($msg->account_id,$sender_id);
    } else {
      $result = 'Sorry, we could not verify your email address.';
    }
    	$this->render('verify',array(
			'result'=>$result,
		));
  }