448 lines
17 KiB
Python
Executable File
448 lines
17 KiB
Python
Executable File
#!/usr/bin/env python3
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# pylint: disable=line-too-long, too-many-branches, too-many-locals
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# pylint: disable=bare-except, pointless-string-statement, consider-using-dict-items
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# pylint: disable=too-many-arguments, too-many-statements, simplifiable-if-statement, too-many-positional-arguments
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# pylint: disable=possibly-used-before-assignment, used-before-assignment
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# pylint: disable=missing-class-docstring, missing-module-docstring, missing-function-docstring
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"""CheckMK special agent for Mailcow systems"""
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import json
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import argparse
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import sys
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import requests
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import urllib3
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from requests.structures import CaseInsensitiveDict
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def get_args() -> argparse.Namespace:
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parser: argparse.ArgumentParser = argparse.ArgumentParser(
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description="Mailcow server parameters"
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)
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parser.add_argument(
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"--hostname", required=True, type=str, help="Hostname or IP of mailcow server"
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)
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parser.add_argument("--apikey", required=True, type=str, help="API key")
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parser.add_argument(
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"--port",
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required=False,
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type=int,
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help="Port where the server is listening on",
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)
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parser.add_argument(
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"--no-https",
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required=False,
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default=False,
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help="Disable HTTPS",
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action="store_true",
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)
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parser.add_argument(
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"--no-cert-check",
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required=False,
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default=False,
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help="Disable certificate checks",
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action="store_true",
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)
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parser.add_argument(
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"--check-version",
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required=False,
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default=False,
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help="Enable version check",
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action="store_true",
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)
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args = parser.parse_args()
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return args
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MC_API_BASE: str = "api/v1/get"
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TIMEOUT: int = 30
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domain_data: dict = {}
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mailbox_data: dict = {}
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def get_domain_info(headers: str, verify: bool, base_url: str) -> int:
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"""retrieves info about all configured domains"""
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url: str = f"{base_url}/domain/all"
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response = requests.get(url=url, headers=headers, verify=verify, timeout=TIMEOUT)
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if response.status_code == 200:
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jsdata = response.text
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data = json.loads(jsdata) # returns a list of dictionaries
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i = 0
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while i < len(data):
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# pprint(data[i])
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# get domain name and status (active (1) or not (0))
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domain_name = data[i].get("domain_name")
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active = data[i].get("active")
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# get creation and last modification date
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created = data[i].get("created")
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modified = data[i].get("modified") # returns "None" or date
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# get maximum and current number of mailboxes in this domain
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max_num_mboxes_for_domain = data[i].get("max_num_mboxes_for_domain")
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mboxes_in_domain = data[i].get("mboxes_in_domain")
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# get maximum and current number of aliases in this domain
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max_num_aliases_for_domain = data[i].get("max_num_aliases_for_domain")
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aliases_in_domain = data[i].get("aliases_in_domain")
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# get total messages in this domain
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msgs_total = data[i].get("msgs_total")
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# get total bytes used in this domain
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bytes_total = data[i].get("bytes_total")
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# get maximum quota for this domain
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max_quota_for_domain = data[i].get("max_quota_for_domain")
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# store all domain data in global dictionary
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dom = {
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"active": active,
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"created": created,
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"modified": modified,
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"max_num_mboxes_for_domain": max_num_mboxes_for_domain,
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"mboxes_in_domain": mboxes_in_domain,
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"max_num_aliases_for_domain": max_num_aliases_for_domain,
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"aliases_in_domain": aliases_in_domain,
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"msgs_total": msgs_total,
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"bytes_total": bytes_total,
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"max_quota_for_domain": max_quota_for_domain,
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}
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domain_data[domain_name] = {}
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domain_data[domain_name] = dom
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i += 1
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# return number of email domains
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return i
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sys.stderr.write(
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f"Request response code is {response.status_code} with URL {url}\n"
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)
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sys.exit(1)
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def get_mailbox_info(headers: str, verify: bool, base_url: str) -> tuple:
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"""retrieves info about all configured mailboxes"""
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url: str = f"{base_url}/mailbox/all"
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response = requests.get(url=url, headers=headers, verify=verify, timeout=TIMEOUT)
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if response.status_code == 200:
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jsdata = response.text
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data = json.loads(jsdata) # returns a list of dictionaries
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i: int = 0
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global_num_messages: int = 0
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while i < len(data):
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# get status of mailbox (0-->inactive or 1-->active)
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active = data[i].get("active")
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# get username of mailbox
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username = data[i].get("username")
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# get friendly name of user
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name = data[i].get("name")
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# get number of messages in mailbox
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num_messages = data[i].get("messages")
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# get quota used in percent (rounded to full percent)
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percent_in_use = data[i].get("percent_in_use")
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# get quota and quota used in bytes
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quota = data[i].get("quota")
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quota_used = data[i].get("quota_used")
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# get creation and last modification date
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created = data[i].get("created")
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modified = data[i].get("modified")
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# get number of messages
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messages = data[i].get("messages")
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# get last login dates
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last_imap_login = data[i].get("last_imap_login")
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last_pop3_login = data[i].get("last_pop3_login")
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last_smtp_login = data[i].get("last_smtp_login")
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mailbox = {
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"active": active,
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"created": created,
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"modified": modified,
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"name": name,
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"num_messages": num_messages,
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"percent_in_use": percent_in_use,
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"quota": quota,
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"quota_used": quota_used,
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"messages": messages,
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"last_imap_login": last_imap_login,
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"last_pop3_login": last_pop3_login,
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"last_smtp_login": last_smtp_login,
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}
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mailbox_data[username] = {}
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mailbox_data[username] = mailbox
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i += 1
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global_num_messages += num_messages
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# return number of mailboxes and global number of messages
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return i, global_num_messages
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sys.stderr.write(
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f"Request response code is {response.status_code} with URL {url}\n"
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)
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sys.exit(1)
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def get_git_version() -> str:
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"""gets the actual version of Mailcow from Github"""
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url: str = "https://api.github.com/repos/mailcow/mailcow-dockerized/releases/latest"
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git_version: str = ""
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response = requests.get(url=url, timeout=TIMEOUT)
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if response.status_code == 200:
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jsdata = response.text
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data = json.loads(jsdata) # returns a dictionary
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git_version = data["tag_name"]
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else:
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sys.stderr.write(
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f"Request response code is {response.status_code} with URL {url}\n"
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)
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sys.exit(1)
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return git_version
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def compare_versions(mc_ver: str, git_ver: str) -> bool:
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"""compares the actual Github version with the version of the running Mailcow system"""
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update_available: bool = False
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try:
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mc_year, mc_month = mc_ver.split("-")
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git_year, git_month = git_ver.split("-")
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# print(mc_year, mc_month, git_year, git_month)
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mc_year_int = int(mc_year)
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git_year_int = int(git_year)
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if git_year_int > mc_year_int:
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update_available = True
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else:
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len_mc_month = len(mc_month)
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len_git_month = len(git_month)
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if len_mc_month == 2:
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mc_month_int = int(mc_month)
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elif len_mc_month == 3:
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mc_month_int = int(mc_month[0:2])
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mc_month_ver = mc_month[-1]
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else:
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pass
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if len_git_month == 2:
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git_month_int = int(git_month)
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elif len_git_month == 3:
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git_month_int = int(git_month[0:2])
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git_month_ver = git_month[-1]
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else:
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pass
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if git_month_int > mc_month_int:
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update_available = True
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elif len_mc_month == 2 and len_git_month == 3:
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update_available = True
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elif git_month_ver > mc_month_ver:
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update_available = True
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except:
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# TBD
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pass
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return update_available
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def get_mailcow_info(
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headers: str, verify: bool, base_url: str, check_version: bool
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) -> dict:
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"""retrieves several global information about the mailcow system"""
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info_data = {}
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url = f"{base_url}/status/version"
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response = requests.get(url=url, headers=headers, verify=verify, timeout=TIMEOUT)
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if response.status_code == 200:
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jsdata = response.text
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data = json.loads(jsdata) # returns a dictionary
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# pprint(data)
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# get Mailcow version
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mc_version = data["version"]
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# if enabled, check this version against the official Mailcow repo on Github
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if check_version:
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git_version = get_git_version()
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update_available = compare_versions(mc_version, git_version)
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info_data["git_version"] = git_version
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info_data["update_available"] = update_available
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else:
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info_data["git_version"] = "Version check disabled"
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info_data["update_available"] = False
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info_data["mc_version"] = mc_version
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info_data["check_version_enabled"] = check_version
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return info_data
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sys.stderr.write(
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f"Request response code is {response.status_code} with URL {url}\n"
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)
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sys.exit(1)
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"""
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Output is as follows:
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0 mailbox name email address used for login
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1 active 1 --> active, 0 --> not active
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2 creation date "None" if ???
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3 last modified date "None" if never modified
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4 name display name
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5 number of messages
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6 percent in use quota used, rounded to full percents
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7 quota max quota in bytes
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8 quota used quota used in bytes
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9 last imap login seconds since epoch, 0 if never logged in
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10 last pop3 login seconds since epoch, 0 if never logged in
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11 last smtp login seconds since epoch, 0 if never logged in
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Example:
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user1@dom1.de;1;2022-04-29 14:29:34;2022-04-29 14:29:34;Sarah;2433;2;21474836480;495481374;1692520168;0;1692281537
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user2@dom1.de;1;2022-04-29 14:38:33;2022-04-29 14:38:33;Tom;271;0;21474836480;25895752;1657394782;1692519758;1681065713
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user1@dom2.de;1;2022-04-30 09:55:37;2022-04-30 09:55:37;Melissa;53460;33;19964887040;6677677548;1692520066;0;1692510822
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"""
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def do_cmk_output_mailboxes() -> None:
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"""prints out agent section for mailboxes"""
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print("<<<mailcow_mailboxes:sep(59)>>>")
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for mb in mailbox_data:
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active = mailbox_data[mb]["active"]
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created = mailbox_data[mb]["created"]
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modified = mailbox_data[mb]["modified"]
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name = mailbox_data[mb]["name"]
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# strip semicolons, if present, since we use it as delimiter
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name = name.replace(";", "")
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num_messages = mailbox_data[mb]["num_messages"]
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percent_in_use = mailbox_data[mb]["percent_in_use"]
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quota = mailbox_data[mb]["quota"]
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quota_used = mailbox_data[mb]["quota_used"]
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last_imap_login = mailbox_data[mb]["last_imap_login"]
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last_pop3_login = mailbox_data[mb]["last_pop3_login"]
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last_smtp_login = mailbox_data[mb]["last_smtp_login"]
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print(
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f"{mb};{active};{created};{modified};{name};{num_messages};{percent_in_use};{quota};{quota_used};{last_imap_login};{last_pop3_login};{last_smtp_login}"
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)
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def do_cmk_output_mailcow(
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version: str,
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num_domains: int,
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num_mailboxes: int,
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num_global_messages: int,
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git_version: str,
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update_available: bool,
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check_version_enabled: bool,
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) -> None:
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"""prints out agent section for global mailcow info"""
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print("<<<mailcow_info:sep(59)>>>")
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# strip semicolons, if present, since we use it as delimiter
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version = version.replace(";", "")
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print(
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f"{version};{num_domains};{num_mailboxes};{num_global_messages};{git_version};{update_available};{check_version_enabled}"
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)
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"""
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Output is as follows:
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0 domain name
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1 active 1 --> active, 0 --> not active
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2 creation date "None" if ???
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3 last modified date "None" if never modified
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4 max number of mailboxes
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5 number of mailboxes
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6 max number of aliases
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7 number of aliases
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8 total number of messages
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9 total number of bytes used in bytes
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10 max quota in bytes
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Example:
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dom1.de;1;2022-04-23 22:54:57;None;10;0;400;6;0;0;10737418240
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dom2.de;1;2022-04-29 13:38:42;2023-08-19 17:21:04;10;0;400;2;0;0;10737418240
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dom3.de;1;2022-04-29 13:36:08;2022-04-29 21:26:19;10;1;100;3;28132;12852485367;21474836480
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"""
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def do_cmk_output_domains() -> None:
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"""print out agent section for domains"""
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print("<<<mailcow_domains:sep(59)>>>")
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for dom in domain_data:
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active = domain_data[dom]["active"]
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created = domain_data[dom]["created"]
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modified = domain_data[dom]["modified"]
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max_num_mboxes_for_domain = domain_data[dom]["max_num_mboxes_for_domain"]
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mboxes_in_domain = domain_data[dom]["mboxes_in_domain"]
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max_num_aliases_for_domain = domain_data[dom]["max_num_aliases_for_domain"]
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aliases_in_domain = domain_data[dom]["aliases_in_domain"]
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msgs_total = domain_data[dom]["msgs_total"]
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bytes_total = domain_data[dom]["bytes_total"]
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max_quota_for_domain = domain_data[dom]["max_quota_for_domain"]
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print(
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f"{dom};{active};{created};{modified};{max_num_mboxes_for_domain};{mboxes_in_domain};{max_num_aliases_for_domain};{aliases_in_domain};{msgs_total};{bytes_total};{max_quota_for_domain}"
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)
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def main():
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"""main function"""
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# get and check parameters
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params: argparse.Namespace = get_args()
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# do some parameter checks
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if params.hostname is None:
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sys.stderr.write("No hostname given.\n")
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sys.exit(1)
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else:
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hostname = params.hostname
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if params.apikey is None:
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sys.stderr.write("No API key given.\n")
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sys.exit(1)
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else:
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apikey = params.apikey
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if params.no_cert_check:
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# disable certificate warnings
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urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
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verify = False
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else:
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verify = True
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if params.check_version:
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check_version = True
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else:
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check_version = False
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if params.port is None:
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if params.no_https:
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protocol = "http"
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port = "80"
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else:
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protocol = "https"
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port = "443"
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else:
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if params.no_https:
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protocol = "http"
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else:
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protocol = "https"
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port = params.port
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if protocol == "http" and port == "443":
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sys.stderr.write("Combining HTTP with port 443 is not supported.\n")
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sys.exit(1)
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if protocol == "https" and port == "80":
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sys.stderr.write("Combining HTTPS with port 80 is not supported.\n")
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sys.exit(1)
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headers = CaseInsensitiveDict()
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headers["Accept"] = "application/json"
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headers["X-API-Key"] = apikey
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# now "hostname" contains the FQDN of the host running Mailcow
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# now "protocol" is http or https
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# now "port" contains the port number to use
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# now "verify" signals whether certificate checking will be done (True) or not (False)
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# now "check_version" signals whether the Mailcow version will be checked against the Github version
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# now "headers" contains the accepted format (JSON) and the API key to use
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base_url = f"{protocol}://{hostname}:{port}/{MC_API_BASE}"
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# get domain data
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num_domains = get_domain_info(headers=headers, verify=verify, base_url=base_url)
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# get mailbox data
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num_mailboxes, num_global_messages = get_mailbox_info(
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headers=headers, verify=verify, base_url=base_url
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)
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# get global Mailcow info
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mailcow_info = get_mailcow_info(
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headers=headers, verify=verify, base_url=base_url, check_version=check_version
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)
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mailcow_version = mailcow_info["mc_version"]
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github_version = mailcow_info["git_version"]
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update_available = mailcow_info["update_available"]
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check_version_enabled = mailcow_info["check_version_enabled"]
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# create agent output
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do_cmk_output_domains()
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do_cmk_output_mailboxes()
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do_cmk_output_mailcow(
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mailcow_version,
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num_domains,
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num_mailboxes,
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num_global_messages,
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github_version,
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update_available,
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check_version_enabled,
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)
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if __name__ == "__main__":
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main()
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