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File Content: `loader.php`

<?php

namespace GOSMTP\Mailer;

class Loader{
	
	var $options;
	var $mailer = '';
	var $url = '';
	var $conn_id = 0;
	var $parent_log = 0;
	var $last_log = 0;
	var $headers = array();
	
	public function __construct(){
		
		// Load options
		$this->loadOptions();
		
	}
	
	public function loadOptions(){
		$options = get_option('gosmtp_options', array());
		
		$this->options = $options;
	}
	
	public function getMailerOption(){
		
		$mailer = $this->mailer;
		
		if(empty($mailer) || !isset($this->options['mailer'][$this->conn_id])){
			return array();
		}
		
		return $this->options['mailer'][$this->conn_id];
	}
	
	public function getActiveMailer(){
		
		if(!isset($this->options['mailer'][$this->conn_id]) || !isset($this->options['mailer'][$this->conn_id]['mail_type'])){
			return 'mail';
		}
		
		return $this->options['mailer'][$this->conn_id]['mail_type'];
	}
	
	public function getOption($key, $mailer = '', $default = ''){
		
		$options = $this->options;
		
		if(!empty($mailer) && $mailer == $this->getActiveMailer()){
			$options = $this->options['mailer'][$this->conn_id];
		}
		
		if(isset($options[$key])){
			return $options[$key];
		}
		
		return $default;	
	}
	
	public function save_options($options){
		
		if(!method_exists($this, 'load_field')){
			return $options;
		}
		
		$fields = $this->load_field();
		
		foreach($fields as $key => $field){
			
			$val = '';
			
			if(!empty($_REQUEST[$this->mailer]) && isset($_REQUEST[$this->mailer][$key])){
				$val = sanitize_text_field($_REQUEST[$this->mailer][$key]);
			}
			
			$options[$key] = $val;
		}
		
		return $options;	
	}
	
	public function delete_option($key, $mailer = ''){

		if(!empty($mailer) && isset($this->options['mailer'][$this->conn_id][$key])){
			unset($this->options['mailer'][$this->conn_id][$key]);
		}elseif(isset($this->options[$key])){
			unset($this->options[$key]);
		}

		update_option( 'gosmtp_options', $this->options );
	}
	
	public function update_option($key, $val, $mailer=''){
		
		if(!empty($mailer)){
			
			if(!is_array($this->options['mailer'][$this->conn_id])){
				$this->options['mailer'][$this->conn_id] = array();
			}
			
			$this->options['mailer'][$this->conn_id][$key] = $val;
			
		}else{
			$this->options[$key] = $val;
		}
		
		update_option( 'gosmtp_options', $this->options);
	}
	
	protected function filterRecipientsArray($args){
		$recipients = [];

		foreach($args as $key => $recip){
			
			$recip = array_filter($recip);

			if(empty($recip) || ! filter_var( $recip[0], FILTER_VALIDATE_EMAIL ) ){
				continue;
			}

			$recipients[$key] = array(
				'address' => $recip[0]
			);

			if(!empty($recip[1])){
				$recipients[$key]['name'] = $recip[1];
			}
		}

		return $recipients;
	}

	public function setHeaders($headers){

		foreach($headers as $header){
			$name = isset($header[0]) ? $header[0] : false;
			$value = isset($header[1]) ? $header[1] : false;

			if(empty($name) || empty($value)){
				continue;
			}

			$this->setHeader($name, $val);
		}
		
	}

	public function setHeader($name, $val){
		
		$name = sanitize_text_field($name);
		
		$this->headers[$name] = WP::sanitize_value($val);
		
	}

	protected function getDefaultParams(){
		$timeout = (int)ini_get('max_execution_time');

		return [
			'timeout'     => $timeout ?: 30,
			'httpversion' => '1.1',
			'blocking'    => true,
		];
	}

	public function set_from(){
		global $phpmailer, $gosmtp;
		
		$conn_id = $gosmtp->mailer->conn_id;
		
		$from_email = $phpmailer->From;
		$from_name = $phpmailer->FromName;
		
		// Check for force set
		if($conn_id === 0){
			$options = $this->options;
		}else{
			$options = $this->options['mailer'][$conn_id];
		}	
		
		if(!empty($options['force_from_email']) && !empty($options['from_email'])){
			$from_email = $options['from_email'];
		}
		
		if(!empty($options['force_from_name']) && !empty($options['from_name'])){
			$from_name = $options['from_name'];
		}
		
		try {
			$phpmailer->setFrom($from_email, $from_name, false);
		}catch( PHPMailer\PHPMailer\Exception $e ) {
			throw new WP_Error( 'wp_mail_failed', $e->getMessage());
		}
		
	}

	public function get_from($from = ''){
		global $phpmailer, $gosmtp;
		
		$conn_id = $gosmtp->mailer->conn_id;
		
		// Check for force set
		if($conn_id === 0){
			$options = $this->options;
		}else{
			$options = $this->options['mailer'][$conn_id];
		}	
		
		if(!empty($options['force_from_email']) && !empty($options['from_email'])){
			$from = $options['from_email'];
		}
		
		return $from;
	}
	
	public function handle_response($response){
		
		$status = false;
		$message = array();

		if(is_wp_error($response)){

			$code = $response->get_error_code();

			if(!is_numeric($code)) {
				$code = 400;
			}

			$msg = $response->get_error_message();

			$message = array(
				'code'    => $code,
				'message' => $msg
			);
			
			$this->process_response($message, $status);
			
			throw new \PHPMailer\PHPMailer\Exception($msg, $code);
			
			return;
			
		}elseif($response['status'] == true){
			
			unset($response['status']);
			
			$message = $response;
			$status = true;
		
		}else{
			$message = array(
				'code'    => $code,
				'message' => __('Unable to send mail, Please check your SMTP details', 'gosmtp')
			);
		}
		
		return $this->process_response($message, $status);
		
	}
	
	public function get_mailer_source(){
		
		$result = [];
		$backtrace = debug_backtrace( DEBUG_BACKTRACE_IGNORE_ARGS );

		if(empty($backtrace)){
			return false;
		}

		foreach( $backtrace as $i => $item ){
			if( $item['function'] == 'wp_mail' ) {
				$result[] = $backtrace[$i];
			}
		}
		
		if(!isset($result[0]['file'])){
			return false;
		}
		
		return $this->get_plugin_name($result[0]['file']);
	}

	public function process_response($message, $status){
		global $phpmailer, $gosmtp;
		
		if(empty($gosmtp->options['logs']['enable_logs']) || !class_exists('\GOSMTP\Logger')){
			return $status;
		}
		
		$logger = new \GOSMTP\Logger();
		
		$source = $this->get_mailer_source();
		
		if(empty($source)){
			$source = __('NA', 'gosmtp');
		}
		
		$headers = array(
			'Reply-To' => $phpmailer->getReplyToAddresses(),
			'Cc' => $phpmailer->getCcAddresses(),
			'Bcc' => $phpmailer->getBccAddresses(),
			'Content-Type' => $phpmailer->ContentType,
		);
		
		$attachments = $phpmailer->getAttachments();

		if(!empty($gosmtp->options['logs']['log_attachments'])){
			
			$uploads_dir = wp_upload_dir();
			$path = $uploads_dir['basedir'].'/gosmtp-attachments';
			
			if( !file_exists($path) ){
				mkdir($path);
			}

			if(!file_exists($path.'/index.html')){
				file_put_contents($path.'/index.html', '');
			}

			if( count($attachments) > 0 ){

				foreach( $attachments as $key => $file ){
					$name = $file[2];
					$location = $path.'/'.$name;
		
					if(file_exists($file[0])){
						// TODO check the copy function use correct
						if(copy($file[0], $location)){
							$file[0] = $location;
						}	
					}
					
					$attachments[$key] = $file;
				}
			}
		}
		
		$data = array(
			'site_id' => get_current_blog_id(),
			'to' => maybe_serialize($this->sanitize_response($phpmailer->getToAddresses(), 'email')),
			'message_id' => $this->RandomString(16),
			'from' => sanitize_email($phpmailer->From),
			'subject' => sanitize_text_field($phpmailer->Subject),
			'body' => $phpmailer->Body,
			'attachments' => maybe_serialize($this->sanitize_response($attachments)),
			'status' => $status ? 'sent' : 'failed',
			'response' => maybe_serialize($this->sanitize_response($message)),
			'headers' => maybe_serialize($this->sanitize_response($headers)),
			'provider' => sanitize_text_field($this->mailer),
			'source' => sanitize_text_field($source),
			'created_at' => current_time( 'mysql' )
		);
		
		if($gosmtp->mailer->conn_id !== 0 && !empty($gosmtp->mailer->parent_log)){
			$data['parent_id'] = $gosmtp->mailer->parent_log;
			$data['source'] = __('GoSMTP Pro', 'gosmtp');
		}

		if(isset($_POST['gostmp_id'])){
			$id = (int)gosmtp_optpost('gostmp_id');
			$result = $logger->get_logs('records', $id);
			$operation = isset($_POST['operation']) ? gosmtp_optpost('operation') : false;
			
			if(!empty($operation) && !empty($result)){
				
				if($operation == 'resend'){
					$data['resent_count'] = $result[0]->resent_count + 1;
				}else{
					$data['retries'] = $result[0]->retries + 1;
				}
				
				$logger->update_logs($data, $id);
			}
		}else{
			$gosmtp->mailer->last_log = $logger->add_logs($data);
		}

		return $status;
	}

	protected function sanitize_response($data, $field_type = ''){
		if(empty($data)){
			return $data;
		}

		if($field_type == 'email'){
			return map_deep($data, 'sanitize_email');
		}

		foreach($data as $key => $item){
			if(is_array($item)){
				$data[$key] = $this->sanitize_response($item);
			}

			if(is_object($item) || is_resource($item)){
				continue;
			}

			if(is_string($item)){
				if(filter_var($item, FILTER_VALIDATE_EMAIL)){
					$data[$key] = sanitize_email($item);
				} elseif(filter_var($item, FILTER_VALIDATE_URL)){
					$data[$key] = esc_url_raw($item);
				} else{
					$data[$key] = sanitize_text_field($item);
				}
			}
		}
		return $data;
	}

	public function message_formatting($msg, $key = '', $desc = ''){

		$message = '';

		if(!empty($key)){
			$message .= $key.': ';
		}

		if(is_string($msg)){
			$message .= $msg;
		}else{
			$message .= wp_json_encode($msg);
		}

		if(!empty($desc)){
			$message .= PHP_EOL .$desc;
		}

		return $message;
	}
	
	public function get_response_error_message($response){

		if(is_wp_error($response)){
			return '';
		}

		$body = wp_remote_retrieve_body( $response );
		$message = wp_remote_retrieve_response_message( $response );
		$code = wp_remote_retrieve_response_code( $response );
		$desc = '';

		if(!empty($body)){
			$desc = is_string($body) ? $body : wp_json_encode($body);
		}

		return $this->message_formatting( $message, $code, $desc );
	}
		
	// Generate a random string
	public function RandomString($length = 10){
		$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
		$charactersLength = strlen($characters);
		$randomString = '';
		for($i = 0; $i < $length; $i++){
			$randomString .= $characters[rand(0, $charactersLength - 1)];
		}
		return $randomString;
	}

	public function get_plugin_name($file_path = ''){

		if( empty( $file_path ) ){
			return false;
		}
		
		if(!function_exists( 'get_plugins')){
			$plugin_file = ABSPATH . 'site-admin/includes/plugin.php';
			$plugin_file = file_exists($plugin_file) ? $plugin_file : ABSPATH . 'wp-admin/includes/plugin.php';
			require_once( $plugin_file );
		}
		
		$plugins = get_plugins();
		$content_dir = basename( WP_PLUGIN_DIR );
		$separator = defined( 'DIRECTORY_SEPARATOR' ) ? '\\' . DIRECTORY_SEPARATOR : '\/';
		
		preg_match( "/$separator$content_dir$separator(.[^$separator]+)($separator|\.php)/", $file_path , $match );
		
		if(empty($plugins) || empty($match[1])){
			return false;
		}
		
		$slug = $match[1];

		foreach( $plugins as $plugin => $data ){
			if( preg_match( "/^$slug(\/|\.php)/", $plugin ) === 1 && isset( $data['Name'] )) {
				return $data['Name'];
			}
		}
		
		return false;
	}

	public function get_backup_connection(){

		// Is Primary email?
		if($this->conn_id !== 0 || empty($this->options['mailer'][0]['backup_connection'])){
			return false;
		}
		
		return $this->options['mailer'][0]['backup_connection'];
	}
	
	
}
Name	Size	Permission
loader.php	11383 bytes	0644
mail.php	838 bytes	0644
maileroo.php	5520 bytes	0644
mailgun.php	6477 bytes	0644
postmark.php	5434 bytes	0644
sendgrid.php	5236 bytes	0644
sendinblue.php	4961 bytes	0644
sendlayer.php	5488 bytes	0644
smtp.php	4255 bytes	0644
smtpcom.php	6283 bytes	0644
sparkpost.php	5815 bytes	0644
File Content: loader.php

File Content: `loader.php`
