Add lost password recovery

tools/mailer.py

@@ -0,0 +1,65 @@
+from flask import Flask
+import os, smtplib, ssl
+from email.message import EmailMessage
+
+
+app = Flask( 'pywallter' )
+app.config.from_pyfile('config.py')
+
+
+
+class Mailer:
+
+    def __init__(self):
+        self._smtp_server = app.config['SMTP_SERVER']
+        self._smtp_port = app.config['SMTP_PORT']
+        self._smtp_user = app.config['SMTP_USER']
+        self._smtp_passwd = app.config['SMTP_PASSWD']
+        self._sender_address = app.config['SENDER_ADDRESS']
+
+
+    def get_smtp_conf(self):
+        print ("Serveur SMTP: _smtp_server")
+        
+        return self._smtp_server
+    
+    def send_email(self, receiver_email, subject, message):
+        
+        mail = EmailMessage()
+        mail['Subject'] = subject
+        mail['From'] = self._sender_address
+        mail['To'] = receiver_email
+        mail.set_content(message)
+        
+        match self._smtp_port:
+            case "465":
+                self._send_ssl_mail(receiver_email, mail)
+            case "587":
+                self._send_starttls_mail(receiver_email, mail)
+            case "25":
+                with smtplib.SMTP(self._smtp_server, self._smtp_port) as server:
+                    server.login(self._smtp_user, self._smtp_password)
+                    server.sendmail(self._sender_address, receiver_email, mail.as_string())
+            case _:
+                print ("There are problem with mail port configuration ")
+            
+
+    def _send_starttls_mail(self, receiver_email, mail):
+
+        context = ssl.create_default_context()
+        with smtplib.SMTP(self._smtp_server, self._smtp_port) as server:
+            server.ehlo()  # Can be omitted
+            server.starttls(context=context)
+            server.ehlo()  # Can be omitted
+            server.login(self._smtp_user, self._smtp_passwd)
+            server.sendmail(self._sender_address, receiver_email, mail.as_string())
+
+
+
+    def _send_ssl_mail(receiver_email, mail):
+    
+        context = ssl.create_default_context()
+        with smtplib.SMTP(self._smtp_server, self._smtp_port) as server:
+
+            server.login(sender_email, password)
+            server.sendmail(self._sender_address, receiver_email, mail.as_string())