rajathithan/main.py

## main.py
#!/usr/bin/env python
# Python script to send email from cloud function using customized html template
# Author: Rajathithan Rajasekar
# Version : 1.0
# Date: 07/30/2023

import os
import pytz
import smtplib
from datetime import datetime
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart

# SMTP server hostname or ipaddress
SMTP_SERVER = "X.X.X.X"
# SMTP Port
SMTP_PORT = 25
# Sender Email
FROM_EMAIL = "sender@someXXXXX.com"
# Receiver Email
TO_EMAIL = ["receiver1@someXXXX.com","receiver2@someXXXX.com"]
# Environment
env = "environment_name"
# Cloud Function Name
cfname = os.environ.get('K_SERVICE')

def prepare_html(event_data, context):
    # Extract timestamp
    ts = datetime.strptime(context.timestamp, '%Y-%m-%dT%H:%M:%S.%fZ')
    # Creation of timezones
    eastern = pytz.timezone('US/Eastern')
    utc = pytz.timezone('UTC')
    # Localize the UTC TimeZone
    utc_ts = utc.localize(ts)
    # Convert UTC to US Eastern TimeZone
    eastern_ts = utc_ts.astimezone(eastern)
    # Timestamp converted to Eastern timezone
    timestamp = eastern_ts.strftime("%d %B, %Y - %I:%M %p") + " EST"
    # Status of the Storage transfer Job
    status=event_data['attributes']['eventType']
    # Create the HTML Template
    html = """\
    <html>
    <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <style type="text/css">
    table, td {{
    border: 1px solid black;
    border-collapse: collapse;
    }}
    td {{padding: 5px;}}
    tr:hover {{background-color: coral; color: white;}}
    tr:nth-child(even) {{background-color: #f2f2f2;}}
    h2 {{ text-decoration: underline black }}
    h2:hover {{color: #007FFF;}}
    </style>
    </head>
    <body style="background-color: #fdf9f8; padding: 5px">
    <center>
    <style>
        @import url('https://fonts.googleapis.com/css/css?family=Roboto');
    </style>
    <div style="background-color: #fff; width: 80%; border-radius: 7px; margin-top: 25px; font-family: roboto; padding: 10px">
        <p style="font-size: 15px;text-align: center;padding: 5px">
        <h2>
        Notification from cloud function [{cfname}]
        </h2>
        <br>
        </p>
        <p style="font-size: 15px;text-align: left;padding: 5px">
        <i>
        Hi Team,<br><br>
        Below is the status of the {env} Storage Transfer Service Job.<br>
        </i>
        <table>
        <tr><td>projectId</td><td>{projectId}</td></tr>
        <tr><td>TransferJob</td><td>{transferjob}</td></tr>
        <tr><td>Status</td><td>{status}</td></tr>
        <tr><td>Event-Type</td><td>{type}</td></tr>
        <tr><td>Topic-Name</td><td>{topic}</td></tr>
        <tr><td>Timestamp</td><td>{timestamp}</td></tr>
        </table>
        </p>
        <p style="font-size: 15px;text-align: left;padding: 5px">
        <i>
        <br>Thanks.
        </i>
        </p>
    </div>
    </center>
    </body>
    </html>
    """.format(
        cfname=cfname,
        env=env,
        projectId=event_data['attributes']['projectId'],
        transferjob=event_data['attributes']['transferOperationName'],
        status=status,
        type=event_data['@type'],
        topic=context.resource['name'],
        timestamp=timestamp,
        )
    # Determine if the Job is successful or not
    if status != "TRANSFER_OPERATION_SUCCESS":
        transfer = "Failure"
    else:
        transfer = "Success"
    return MIMEText(html, "html"), transfer

def send_email(event_data, context):
    #Message settings
    message = MIMEMultipart("alternative")
    message["From"] = FROM_EMAIL
    message["To"] = ", ".join(TO_EMAIL)
    # Prepare the html content
    part, transfer = prepare_html(event_data, context)
    # Update subject based on Job Status
    if transfer == "Success":
        message["Subject"] = env + " STS-Job Successful"
    else:
        message["Subject"] = env + " STS-Job Failed"
    # Attach the html section to the message
    message.attach(part)
    # Create the SMTP context and send email
    try:
        with smtplib.SMTP(host=SMTP_SERVER, port=SMTP_PORT) as server:
            server.set_debuglevel(2)
            server.sendmail(
                from_addr=FROM_EMAIL,
                to_addrs=TO_EMAIL,
                msg=message.as_string(),
            )
    except Exception as e:
        print(f"An Exception Occurred - {e}")
        return -1
    return "Email is sent successfully"
	#!/usr/bin/env python
	# Python script to send email from cloud function using customized html template
	# Author: Rajathithan Rajasekar
	# Version : 1.0
	# Date: 07/30/2023

	import os
	import pytz
	import smtplib
	from datetime import datetime
	from email.mime.text import MIMEText
	from email.mime.multipart import MIMEMultipart

	# SMTP server hostname or ipaddress
	SMTP_SERVER = "X.X.X.X"
	# SMTP Port
	SMTP_PORT = 25
	# Sender Email
	FROM_EMAIL = "sender@someXXXXX.com"
	# Receiver Email
	TO_EMAIL = ["receiver1@someXXXX.com","receiver2@someXXXX.com"]
	# Environment
	env = "environment_name"
	# Cloud Function Name
	cfname = os.environ.get('K_SERVICE')

	def prepare_html(event_data, context):
	# Extract timestamp
	ts = datetime.strptime(context.timestamp, '%Y-%m-%dT%H:%M:%S.%fZ')
	# Creation of timezones
	eastern = pytz.timezone('US/Eastern')
	utc = pytz.timezone('UTC')
	# Localize the UTC TimeZone
	utc_ts = utc.localize(ts)
	# Convert UTC to US Eastern TimeZone
	eastern_ts = utc_ts.astimezone(eastern)
	# Timestamp converted to Eastern timezone
	timestamp = eastern_ts.strftime("%d %B, %Y - %I:%M %p") + " EST"
	# Status of the Storage transfer Job
	status=event_data['attributes']['eventType']
	# Create the HTML Template
	html = """\
	<html>
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<style type="text/css">
	table, td {{
	border: 1px solid black;
	border-collapse: collapse;
	}}
	td {{padding: 5px;}}
	tr:hover {{background-color: coral; color: white;}}
	tr:nth-child(even) {{background-color: #f2f2f2;}}
	h2 {{ text-decoration: underline black }}
	h2:hover {{color: #007FFF;}}
	</style>
	</head>
	<body style="background-color: #fdf9f8; padding: 5px">
	<center>
	<style>
	@import url('https://fonts.googleapis.com/css/css?family=Roboto');
	</style>
	<div style="background-color: #fff; width: 80%; border-radius: 7px; margin-top: 25px; font-family: roboto; padding: 10px">
	<p style="font-size: 15px;text-align: center;padding: 5px">
	<h2>
	Notification from cloud function [{cfname}]
	</h2>
	<br>
	</p>
	<p style="font-size: 15px;text-align: left;padding: 5px">
	<i>
	Hi Team,<br><br>
	Below is the status of the {env} Storage Transfer Service Job.<br>
	</i>
	<table>
	<tr><td>projectId</td><td>{projectId}</td></tr>
	<tr><td>TransferJob</td><td>{transferjob}</td></tr>
	<tr><td>Status</td><td>{status}</td></tr>
	<tr><td>Event-Type</td><td>{type}</td></tr>
	<tr><td>Topic-Name</td><td>{topic}</td></tr>
	<tr><td>Timestamp</td><td>{timestamp}</td></tr>
	</table>
	</p>
	<p style="font-size: 15px;text-align: left;padding: 5px">
	<i>
	<br>Thanks.
	</i>
	</p>
	</div>
	</center>
	</body>
	</html>
	""".format(
	cfname=cfname,
	env=env,
	projectId=event_data['attributes']['projectId'],
	transferjob=event_data['attributes']['transferOperationName'],
	status=status,
	type=event_data['@type'],
	topic=context.resource['name'],
	timestamp=timestamp,
	)
	# Determine if the Job is successful or not
	if status != "TRANSFER_OPERATION_SUCCESS":
	transfer = "Failure"
	else:
	transfer = "Success"
	return MIMEText(html, "html"), transfer

	def send_email(event_data, context):
	#Message settings
	message = MIMEMultipart("alternative")
	message["From"] = FROM_EMAIL
	message["To"] = ", ".join(TO_EMAIL)
	# Prepare the html content
	part, transfer = prepare_html(event_data, context)
	# Update subject based on Job Status
	if transfer == "Success":
	message["Subject"] = env + " STS-Job Successful"
	else:
	message["Subject"] = env + " STS-Job Failed"
	# Attach the html section to the message
	message.attach(part)
	# Create the SMTP context and send email
	try:
	with smtplib.SMTP(host=SMTP_SERVER, port=SMTP_PORT) as server:
	server.set_debuglevel(2)
	server.sendmail(
	from_addr=FROM_EMAIL,
	to_addrs=TO_EMAIL,
	msg=message.as_string(),
	)
	except Exception as e:
	print(f"An Exception Occurred - {e}")
	return -1
	return "Email is sent successfully"