feat: SMTP 2/2 - Implementation using PHPMailer

Before test, make sure the system variable 'Ticket Email Address' is
set.

1) Add a new SMTP setting entry, visit:
http://localhost:8083/Admin/SMTPSettings

Make sure to use valid SMTP creds/info

2) Submit a new ticket, visit:
http://localhost:8083/Admin/SubmitTicket

Make sure the 'Email' is your e-mail address.
After submiting the ticket, check your inbox for the ticket e-mail.

code/web/sys/Email/Mailer.php

@@ -20,11 +20,15 @@ public function send($to, $subject, $body, $replyTo = null, $htmlBody = null, $a
 
 		require_once ROOT_DIR . '/sys/Email/SendGridSetting.php';
 		require_once ROOT_DIR . '/sys/Email/AmazonSesSetting.php';
+		require_once ROOT_DIR . '/sys/Email/SMTPSetting.php';
 		require_once ROOT_DIR . '/sys/CurlWrapper.php';
 		//TODO: Do validation of the address
 		$amazonSesSettings = new AmazonSesSetting();
+		$smtpServerSettings = new SMTPSetting();
 
-		if ($amazonSesSettings->find(true)) {
+		if($smtpServerSettings->find(true)) {
+			$result = $this->sendViaSMTP($smtpServerSettings, $to, $replyTo, $subject, $body, $htmlBody, $attachments);
+		}elseif ($amazonSesSettings->find(true)) {
 			$result = $this->sendViaAmazonSes($amazonSesSettings, $to, $replyTo, $subject, $body, $htmlBody, $attachments);
 		} else {
 			$sendGridSettings = new SendGridSetting();
@@ -137,4 +141,8 @@ private function sendViaAmazonSes(AmazonSesSetting $amazonSesSettings, string $t
 			}
 		}
 	}
+
+	private function sendViaSMTP(SMTPSetting $smtpSettings, string $to, ?string $replyTo, string $subject, ?string $body, ?string $htmlBody, ?array $attachments): bool {
+		return $smtpSettings->sendEmail($to, $replyTo, $subject, $body, $htmlBody, $attachments);
+	}
 }

code/web/sys/Email/SMTPSetting.php

@@ -1,5 +1,8 @@
 <?php
 
+use PHPMailer\PHPMailer\PHPMailer;
+use PHPMailer\PHPMailer\Exception;
+use PHPMailer\PHPMailer\SMTP;
 
 class SMTPSetting extends DataObject {
 	public $__table = 'smtp_settings';
@@ -81,6 +84,46 @@ public static function getObjectStructure($context = ''): array {
 		];
 	}
 
+	function sendEmail($to, $replyTo, $subject, $body, $htmlBody, $attachments){
+
+		require_once ('PHPMailer-6.9.1/src/PHPMailer.php');
+		require_once ('PHPMailer-6.9.1/src/SMTP.php');
+		require_once ('PHPMailer-6.9.1/src/Exception.php');
+
+		$mail = new PHPMailer();
+
+		$mail->isSMTP();
+		// $mail->SMTPDebug = SMTP::DEBUG_SERVER;
+		$mail->Host = $this->host;
+		$mail->SMTPAuth = true;
+		$mail->Username = $this->user_name;
+		$mail->Password = $this->password;
+
+		if($this->ssl_mode != 'disabled'){
+			$mail->SMTPSecure = $this->ssl_mode;
+		}
+
+		$mail->From = $this->from_address;
+		$mail->FromName = 'Aspen Discovery';
+		$mail->addAddress($to);
+
+		for($i = 0; $i < sizeof($attachments['name']); $i++){
+			$mail->addAttachment($attachments['tmp_name'][$i], $attachments['name'][0]);
+		}
+
+		$mail->Subject = $subject;
+		$mail->Body    = $htmlBody ?: $body;
+
+		if(!$mail->send()) {
+			echo 'Message could not be sent.';
+			echo 'Mailer Error: ' . $mail->ErrorInfo;
+			return false;
+		} else {
+			echo 'Message has been sent';
+			return true;
+		}
+	}
+
 	function getActiveAdminSection(): string {
 		return 'system_admin';
 	}