E-300 (#19726)

Signed-off-by: -LAN- <laipz8200@outlook.com>
Co-authored-by: Hash Brown <hi@xzd.me>
Co-authored-by: crazywoola <427733928@qq.com>
Co-authored-by: GareArc <chen4851@purdue.edu>
Co-authored-by: Byron.wang <byron@dify.ai>
Co-authored-by: Joel <iamjoel007@gmail.com>
Co-authored-by: -LAN- <laipz8200@outlook.com>
Co-authored-by: Garfield Dai <dai.hai@foxmail.com>
Co-authored-by: KVOJJJin <jzongcode@gmail.com>
Co-authored-by: Alexi.F <654973939@qq.com>
Co-authored-by: Xiyuan Chen <52963600+GareArc@users.noreply.github.com>
Co-authored-by: kautsar_masuara <61046989+izon-masuara@users.noreply.github.com>
Co-authored-by: achmad-kautsar <achmad.kautsar@insignia.co.id>
Co-authored-by: Xin Zhang <sjhpzx@gmail.com>
Co-authored-by: kelvintsim <83445753+kelvintsim@users.noreply.github.com>
Co-authored-by: zxhlyh <jasonapring2015@outlook.com>
Co-authored-by: Zixuan Cheng <61724187+Theysua@users.noreply.github.com>

api/tasks/mail_enterprise_task.py

@@ -0,0 +1,33 @@
+import logging
+import time
+
+import click
+from celery import shared_task  # type: ignore
+from flask import render_template_string
+
+from extensions.ext_mail import mail
+
+
+@shared_task(queue="mail")
+def send_enterprise_email_task(to, subject, body, substitutions):
+    if not mail.is_inited():
+        return
+
+    logging.info(click.style("Start enterprise mail to {} with subject {}".format(to, subject), fg="green"))
+    start_at = time.perf_counter()
+
+    try:
+        html_content = render_template_string(body, **substitutions)
+
+        if isinstance(to, list):
+            for t in to:
+                mail.send(to=t, subject=subject, html=html_content)
+        else:
+            mail.send(to=to, subject=subject, html=html_content)
+
+        end_at = time.perf_counter()
+        logging.info(
+            click.style("Send enterprise mail to {} succeeded: latency: {}".format(to, end_at - start_at), fg="green")
+        )
+    except Exception:
+        logging.exception("Send enterprise mail to {} failed".format(to))