Version 1:
Execute the script with –dingtalk-webhook and –domains and then specify the DingTalk token and domain name.
python3 ssl_spirtime.py --dingtalk-webhook https://oapi.dingtalk.com/robot/send?access_token=avd345324 --domains www.abc1.com www.abc2.com www.abc3.com
The script is as follows
#!/usr/bin/python3
import ssl
import socket
from datetime import datetime
import argparse
import requests
def get_ssl_cert_expiration(domain, port=443):
context = ssl.create_default_context()
conn = context.wrap_socket(socket.socket(socket.AF_INET), server_hostname=domain)
conn.connect((domain, port))
cert = conn.getpeercert()
conn.close()
# Extract the expiration date from the certificate
not_after = cert['notAfter']
# Convert the date string to a datetime object
expiration_date = datetime.strptime(not_after, '%b %d %H:%M:%S %Y %Z')
return expiration_date
def send_dingtalk_message(webhook_url, message):
headers = {<!-- -->'Content-Type': 'application/json'}
payload = {<!-- -->
"msgtype": "text",
"text": {<!-- -->
"content": message
}
}
response = requests.post(webhook_url, json=payload, headers=headers)
if response.status_code == 200:
print("Message sent successfully to DingTalk")
else:
print(f"Failed to send message to DingTalk. HTTP Status Code: {<!-- -->response.status_code}")
if __name__ == "__main__":
parser = argparse.ArgumentParser(description="Test SSL certificate expiration for multiple domains")
parser.add_argument("--dingtalk-webhook", required=True, help="DingTalk webhook URL")
parser.add_argument("--domains", nargs=' + ', required=True, help="List of domains to test SSL certificate expiration")
args = parser.parse_args()
for domain in args.domains:
expiration_date = get_ssl_cert_expiration(domain)
current_date = datetime.now()
days_remaining = (expiration_date - current_date).days
print(f"SSL certificate for {<!-- -->domain} expires on {<!-- -->expiration_date}")
print(f"Days remaining: {<!-- -->days_remaining} days")
if days_remaining < 300:
message = f"SSL certificate for {<!-- -->domain} will expire on {<!-- -->expiration_date}. Only {<!-- -->days_remaining} days remaining."
send_dingtalk_message(args.dingtalk_webhook, message)
</code><img class="look-more-preCode contentImg-no-view" src="//i2.wp.com/csdnimg.cn/release/blogv2/dist/pc/img/newCodeMoreBlack.png" alt ="" title="">
Version 2
Execute the script with –dingtalk-webhook, –secret and –domains and then specify the DingTalk token, key and domain name.
python3 ssl_spirtime4.py --dingtalk-webhook https://oapi.dingtalk.com/robot/send?access_token=abdcsardaef--secret SEC75bcc2abdfd --domains www.abc1.com www.abc2.com www.abc3. com
#!/usr/bin/python3
import ssl
import socket
from datetime import datetime
import argparse
import requests
import hashlib
import hmac
import base64
import time
def get_ssl_cert_expiration(domain, port=443):
context = ssl.create_default_context()
conn = context.wrap_socket(socket.socket(socket.AF_INET), server_hostname=domain)
conn.connect((domain, port))
cert = conn.getpeercert()
conn.close()
# Extract the expiration date from the certificate
not_after = cert['notAfter']
# Convert the date string to a datetime object
expiration_date = datetime.strptime(not_after, '%b %d %H:%M:%S %Y %Z')
return expiration_date
def send_dingtalk_message(webhook_url, secret, message):
headers = {<!-- -->'Content-Type': 'application/json'}
# Get the current timestamp in milliseconds
timestamp = str(int(round(time.time() * 1000)))
# Combine timestamp and secret to create a sign string
sign_string = f"{<!-- -->timestamp}\
{<!-- -->secret}"
# Calculate the HMAC-SHA256 signature
sign = base64.b64encode(hmac.new(secret.encode(), sign_string.encode(), hashlib.sha256).digest()).decode()
# Create the payload with the calculated signature
payload = {<!-- -->
"msgtype": "text",
"text": {<!-- -->
"content": message
},
"timestamp": timestamp,
"sign": sign
}
response = requests.post(f"{<!-- -->webhook_url} & amp;timestamp={<!-- -->timestamp} & amp;sign={<!-- -->sign}", json=payload, headers=headers)
if response.status_code == 200:
print("Message sent successfully to DingTalk")
else:
print(f"Failed to send message to DingTalk. HTTP Status Code: {<!-- -->response.status_code}")
if __name__ == "__main__":
parser = argparse.ArgumentParser(description="Test SSL certificate expiration for multiple domains")
parser.add_argument("--dingtalk-webhook", required=True, help="DingTalk webhook URL")
parser.add_argument("--secret", required=True, help="DingTalk robot secret")
parser.add_argument("--domains", nargs=' + ', required=True, help="List of domains to test SSL certificate expiration")
args = parser.parse_args()
for domain in args.domains:
expiration_date = get_ssl_cert_expiration(domain)
current_date = datetime.now()
days_remaining = (expiration_date - current_date).days
print(f"SSL certificate for {<!-- -->domain} expires on {<!-- -->expiration_date}")
print(f"Days remaining: {<!-- -->days_remaining} days")
if days_remaining < 10:
message = f"SSL certificate for {<!-- -->domain} will expire on {<!-- -->expiration_date}. Only {<!-- -->days_remaining} days remaining."
send_dingtalk_message(args.dingtalk_webhook, args.secret, message)
</code><img class="look-more-preCode contentImg-no-view" src="//i2.wp.com/csdnimg.cn/release/blogv2/dist/pc/img/newCodeMoreBlack.png" alt ="" title="">
Ultimate version
Specify configuration file when python executes script
python3 ssl_spirtime.py --config-file config.json
The content of the config.json configuration file is as follows
{<!-- -->
"dingtalk-webhook": "https://oapi.dingtalk.com/robot/send?access_token=avbdcse345dd",
"secret": "SECaegdDEdaDSEGFdadd12334",
"domains": [
"www.a.tel",
"www.b.com",
"www.c.app",
"www.d-cn.com",
"www.e.com",
"www.f.com",
"www.g.com",
"www.gg.com",
"www.sd.com",
"www.234.com",
"www.456.com",
"www.addf.com",
"www.advdwd.com",
"aqjs.aefdsdf.com",
"apap.adedgdg.com",
"cbap.asfew.com",
"ksjsw.adfewfd.cn",
"wdxl.aeffadaf.com",
"wspr.afefd.shop",
"sktprd.daeafsdf.shop",
"webskt.afaefafa.shop",
"www.afaead.cn",
"www.afewfsegs.co",
"www.aaeafsf.com",
"bdvt.aeraf.info",
"dl.afawef.co",
"dl.aefarge.com"
]
}
</code><img class="look-more-preCode contentImg-no-view" src="//i2.wp.com/csdnimg.cn/release/blogv2/dist/pc/img/newCodeMoreBlack.png" alt ="" title="">
The script content is as follows
#!/usr/bin/python3
import ssl
import socket
from datetime import datetime
import argparse
import requests
import hashlib
import hmac
import base64
import time
import json
def get_ssl_cert_expiration(domain, port=443):
context = ssl.create_default_context()
conn = context.wrap_socket(socket.socket(socket.AF_INET), server_hostname=domain)
conn.connect((domain, port))
cert = conn.getpeercert()
conn.close()
# Extract the expiration date from the certificate
not_after = cert['notAfter']
# Convert the date string to a datetime object
expiration_date = datetime.strptime(not_after, '%b %d %H:%M:%S %Y %Z')
return expiration_date
def send_dingtalk_message(webhook_url, secret, message):
headers = {<!-- -->'Content-Type': 'application/json'}
# Get the current timestamp in milliseconds
timestamp = str(int(round(time.time() * 1000)))
# Combine timestamp and secret to create a sign string
sign_string = f"{<!-- -->timestamp}\
{<!-- -->secret}"
# Calculate the HMAC-SHA256 signature
sign = base64.b64encode(hmac.new(secret.encode(), sign_string.encode(), hashlib.sha256).digest()).decode()
# Create the payload with the calculated signature
payload = {<!-- -->
"msgtype": "text",
"text": {<!-- -->
"content": message
},
"timestamp": timestamp,
"sign": sign
}
response = requests.post(f"{<!-- -->webhook_url} & amp;timestamp={<!-- -->timestamp} & amp;sign={<!-- -->sign}", json=payload, headers=headers)
if response.status_code == 200:
print("Message sent successfully to DingTalk")
else:
print(f"Failed to send message to DingTalk. HTTP Status Code: {<!-- -->response.status_code}")
if __name__ == "__main__":
# Load configuration from configuration file
with open("config.json", 'r') as config_file:
config = json.load(config_file)
dingtalk_webhook = config.get("dingtalk-webhook")
secret = config.get("secret")
domains = config.get("domains")
for domain in domains:
expiration_date = get_ssl_cert_expiration(domain)
current_date = datetime.now()
days_remaining = (expiration_date - current_date).days
print(f"SSL certificate for {<!-- -->domain} expires on {<!-- -->expiration_date}")
print(f"Days remaining: {<!-- -->days_remaining} days")
if days_remaining < 10:
message = f"SSL certificate for {<!-- -->domain} will expire on {<!-- -->expiration_date}. Only {<!-- -->days_remaining} days remaining."
send_dingtalk_message(dingtalk_webhook, secret, message)
</code><img class="look-more-preCode contentImg-no-view" src="//i2.wp.com/csdnimg.cn/release/blogv2/dist/pc/img/newCodeMoreBlack.png" alt ="" title="">
Results of the
/usr/bin/python3 /root/ssl_spirtime.py --config-file /root/config.json SSL certificate for www.a.tel expires on 2024-06-08 23:59:59 Days remaining: 220 days SSL certificate for www.b.com expires on 2024-05-23 07:45:13 Days remaining: 203 days SSL certificate for www.c.app expires on 2024-05-23 07:45:13 Days remaining: 203 days SSL certificate for www.d-cn.com expires on 2024-03-03 00:00:00 Days remaining: 122 days SSL certificate for www.aed.com expires on 2024-11-17 06:30:15 Days remaining: 381 days SSL certificate for www.afedf.com expires on 2024-06-20 23:59:59 Days remaining: 232 days SSL certificate for www.aefdfd.com expires on 2024-06-20 23:59:59
DingTalk warning message is as follows
