feat: add email service and appointment management module with configuration settings

Web/modules/emailservice/email.py

@@ -0,0 +1,47 @@
+from email.mime.text import MIMEText
+from email.mime.multipart import MIMEMultipart
+import smtplib
+
+import Web.modules.database.settings as cfg
+
+
+def _build_smtp_client():
+    smtp = smtplib.SMTP(cfg.EMAIL_SMTP_HOST, cfg.EMAIL_SMTP_PORT, timeout=cfg.EMAIL_TIMEOUT_SECONDS)
+    smtp.ehlo()
+    if cfg.EMAIL_USE_TLS:
+        smtp.starttls()
+        smtp.ehlo()
+    if cfg.EMAIL_USERNAME:
+        smtp.login(cfg.EMAIL_USERNAME, cfg.EMAIL_PASSWORD or '')
+    return smtp
+
+def send(email: list, subject: str, note: str, sender: str) -> bool:
+  """
+  Sends the email with the link to the Clients
+
+  Input:
+  - email: Email list of all the addresses to send the link to ["","",""]
+  - subject: Subject of the email
+  - note: Note that is send with the Emails
+
+  Output:
+  - bool: true if the sending worked and false if it didnt
+  """
+  msg = MIMEMultipart()
+  msg['Subject'] = subject
+  msg['From'] = sender or cfg.EMAIL_FROM_ADDRESS or cfg.EMAIL_USERNAME
+  msg['To'] = ', '.join(email) if isinstance(email, (list, tuple)) else str(email)
+  msg.attach(MIMEText(note))
+  smtp = None
+  try:
+    smtp = _build_smtp_client()
+    smtp.sendmail(from_addr=msg['From'], to_addrs=email, msg=msg.as_string())
+    return True
+  except Exception:
+    return False
+  finally:
+    try:
+      if smtp:
+        smtp.quit()
+    except Exception:
+      pass