From 463139601c046a5201cb8a73473f8fe5c568b760 Mon Sep 17 00:00:00 2001
From: George Halkiadakis <gchalkiadakis@sklavenitis.co.gr>
Date: Thu, 27 Apr 2023 20:15:02 +0300
Subject: rearangment completed; now anything is simplel

---
 public/app/extends/SendMail_service.php | 212 ++++++++++++++++++++++++++++++++
 1 file changed, 212 insertions(+)
 create mode 100644 public/app/extends/SendMail_service.php

(limited to 'public/app/extends/SendMail_service.php')

diff --git a/public/app/extends/SendMail_service.php b/public/app/extends/SendMail_service.php
new file mode 100644
index 0000000..c717e61
--- /dev/null
+++ b/public/app/extends/SendMail_service.php
@@ -0,0 +1,212 @@
+<?php
+namespace app\extends;
+
+use PHPMailer\PHPMailer\PHPMailer;
+use PHPMailer\PHPMailer\SMTP;
+use PHPMailer\PHPMailer\Exception;
+
+
+class SendMail_service
+{
+    /** send_activation_code
+     * 
+     * construct the envelope = [
+     *    email => user email
+     *    name => user full name
+     *    subject => subject
+     *    body => email message body
+     * ]
+     * 
+     * then send the email;
+     * 
+     * @param $activator (array): [
+     *    email => user email,
+     *    name => user full name,
+     *    code => activation code
+     * ]
+     * 
+     * @return success_starus (boolean)
+     * 
+     * TODO:
+     * check for email templating:
+     * + https://stackoverflow.com/questions/2391171/how-to-get-output-from-local-script-in-php
+     * + https://stackoverflow.com/questions/171318/how-do-i-capture-php-output-into-a-variable
+     */
+    public static function send_activation_code($activator)
+    {
+        $activation_url = SITE_URL ."/account/activate?ticket=". $activator['code'];
+        $envelope = [
+            'email' => $activator['email'],
+            'name' => $activator['name'],
+            'subject' => 'Εγγραφή στο Classroom',
+            'body' => "Χαίρετε,<br>
+                το παρόν αυτοποιημένο email σάς έχει σταλεί
+                γιατί έχει γίνει αίτημα εγγραφής σας στο Classroom.<br>
+                <br>
+                Όνομα επαφής: <b>". $activator['name'] ."</b><br>
+                Email : <b>". $activator['email'] ."</b><br>
+                <br>
+                Για να ενεργοποιήσετε την πρόσβασή σας στο site
+                θα πρέπει ακολουθήσετε τον παρακάτω σύνδεσμο:
+                <a href=\"". $activation_url ."\">". $activation_url ."</a>.
+                <br>
+                <br>
+                Μετά την ενεργοποίηση θα έχετε πρόσσβαση
+                στο περιεχόμενο του site.<br>
+                Μην απαντήσετε στο email,
+                δεν υπάρχει φυσική επαφή η οποία να λαμβάνει τυχόν replies."
+        ];
+
+        switch (DEFAULT_MAIL_SERVICE) {
+            case 'mailjet':
+                $reply = self::send_mailjet($envelope);
+                break;
+            
+            case 'phpMailer':
+                $reply = self::send_phpMailer($envelope);
+                break;
+        }
+
+        return $reply;
+
+    }
+
+
+    /** send phpMailer
+     * 
+     * send email using phpMailer class;
+     * optional SMTP server configuration;
+     * 
+     * @param $envelope
+     * @return success_starus (boolean)
+     */
+    public static function send_phpMailer($envelope)
+    {
+        $mail = new PHPMailer();
+
+        # // setup smpt
+        $mail->SMTPDebug = 3;
+        $mail->IsSMTP();
+        $mail->Host = MAIL_HOST;
+        # $mail->SMPTAuth = false;
+        $mail->SMTPSecure = MAIL_ENCRYPTION;
+        # // $mail->Protocol = 'mail';
+        
+        $mail->Mailer = MAIL_MAILER;
+        $mail->Port = MAIL_PORT;
+        $mail->Username = MAIL_USERNAME;
+        $mail->Password = MAIL_PASSWORD;
+
+        // setup format
+        $mail->CharSet = 'utf-8';
+        $mail->IsHTML(true);
+
+        // setup THE mail
+        // --- -- -- - - -
+        // It's important not to use the submitter's address as the from address
+        // as it's forgery, which will cause your messages to fail SPF checks.
+        // Use an address in your own domain as the from address;
+        //  put the submitter's address in a reply-to
+
+        $mail->setFrom(NO_REPLY_EMAIL, MAIL_FROM_NAME);
+        $mail->addAddress($envelope['email'], $envelope['name']);
+        $mail->addReplyTo(REPLY_TO_EMAIL, MAIL_FROM_NAME);
+        $mail->Subject = $envelope['subject'];
+        $mail->Body = $envelope['body'];
+
+        return (!$mail->send()) ? false : true;
+
+    }
+
+
+    /** send_mailjet
+     * 
+     * send email using CURL mail-relay of Mailjet
+     * 
+     * @param $envelope
+     * @return success_starus (boolean)
+     */
+    public static function send_mailjet($envelope)
+    {
+        $body = [
+            'Messages' => [
+                [
+                'From' => [
+                    'Email' => REPLY_TO_EMAIL,
+                    'Name' => MAIL_FROM_NAME
+                ],
+                'To' => [
+                    [
+                        'Email' => $envelope['email'],
+                        'Name' => $envelope['name']
+                    ]
+                ],
+                'Subject' => $envelope['subject'],
+                'HTMLPart' => $envelope['body']
+                ]
+            ]
+        ];
+        
+        $ch = curl_init();
+        
+        curl_setopt($ch, CURLOPT_URL, "https://api.mailjet.com/v3.1/send");
+        curl_setopt($ch, CURLOPT_POST, 1);
+        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($body));
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_HTTPHEADER, array(                                                                          
+            'Content-Type: application/json')
+        );
+        curl_setopt(
+            $ch,
+            CURLOPT_USERPWD,
+            MAILJET_APIKEY. ':'. MAILJET_SECRET
+        );
+        $server_output = curl_exec($ch);
+        curl_close ($ch);
+        
+        $response = json_decode($server_output);
+
+        return ($response->Messages[0]->Status == 'success');
+
+    }
+
+
+
+}
+
+
+
+
+
+/** NOTE:
+ * -----------------------------------------------------------------------------
+ * (brainstorming)
+ * 
+
+Optimization per concept alternative technologies
+--- -- -- - - -
+
+## Session
+File Session
+Database Session
+Redis Session
+Memcached Session
+
+---
+
+## Cache
+File Cache
+Database Cache
+Redis Cache
+Memcashed Cache
+
+---
+
+## Log
+File Log
+Database Log
+Log event to Slack
+Log event to Email
+
+ * -----------------------------------------------------------------------------
+ */
-- 
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