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mailcow-dockerized/data/Dockerfiles/bootstrap/modules/BootstrapDovecot.py

308 lines
10 KiB
Python

from jinja2 import Environment, FileSystemLoader
from modules.BootstrapBase import BootstrapBase
from pathlib import Path
import os
import sys
import time
import pwd
import hashlib
class Bootstrap(BootstrapBase):
def bootstrap(self):
# Connect to MySQL
self.connect_mysql()
self.wait_for_schema_update()
# Connect to Redis
self.connect_redis()
self.redis_conn.set("DOVECOT_REPL_HEALTH", 1)
# Wait for DNS
self.wait_for_dns("mailcow.email")
# Create missing directories
self.create_dir("/etc/dovecot/sql/")
self.create_dir("/etc/dovecot/auth/")
self.create_dir("/var/vmail/_garbage")
self.create_dir("/var/vmail/sieve")
self.create_dir("/etc/sogo")
self.create_dir("/var/volatile")
# Setup Jinja2 Environment and load vars
self.env = Environment(
loader=FileSystemLoader('./etc/dovecot/config_templates'),
keep_trailing_newline=True,
lstrip_blocks=True,
trim_blocks=True
)
extra_vars = {
"VALID_CERT_DIRS": self.get_valid_cert_dirs(),
"RAND_USER": self.rand_pass(),
"RAND_PASS": self.rand_pass(),
"RAND_PASS2": self.rand_pass(),
"ENV_VARS": dict(os.environ)
}
self.env_vars = self.prepare_template_vars('/overwrites.json', extra_vars)
# Escape DBPASS
self.env_vars['DBPASS'] = self.env_vars['DBPASS'].replace('"', r'\"')
# Set custom filters
self.env.filters['sha1'] = self.sha1_filter
print("Set Timezone")
self.set_timezone()
print("Render config")
self.render_config("dovecot-dict-sql-quota.conf.j2", "/etc/dovecot/sql/dovecot-dict-sql-quota.conf")
self.render_config("dovecot-dict-sql-userdb.conf.j2", "/etc/dovecot/sql/dovecot-dict-sql-userdb.conf")
self.render_config("dovecot-dict-sql-sieve_before.conf.j2", "/etc/dovecot/sql/dovecot-dict-sql-sieve_before.conf")
self.render_config("dovecot-dict-sql-sieve_after.conf.j2", "/etc/dovecot/sql/dovecot-dict-sql-sieve_after.conf")
self.render_config("mail_plugins.j2", "/etc/dovecot/mail_plugins")
self.render_config("mail_plugins_imap.j2", "/etc/dovecot/mail_plugins_imap")
self.render_config("mail_plugins_lmtp.j2", "/etc/dovecot/mail_plugins_lmtp")
self.render_config("global_sieve_after.sieve.j2", "/var/vmail/sieve/global_sieve_after.sieve")
self.render_config("global_sieve_before.sieve.j2", "/var/vmail/sieve/global_sieve_before.sieve")
self.render_config("dovecot-master.passwd.j2", "/etc/dovecot/dovecot-master.passwd")
self.render_config("dovecot-master.userdb.j2", "/etc/dovecot/dovecot-master.userdb")
self.render_config("sieve.creds.j2", "/etc/sogo/sieve.creds")
self.render_config("sogo-sso.pass.j2", "/etc/phpfpm/sogo-sso.pass")
self.render_config("cron.creds.j2", "/etc/sogo/cron.creds")
self.render_config("source_env.sh.j2", "/source_env.sh")
self.render_config("maildir_gc.sh.j2", "/usr/local/bin/maildir_gc.sh")
self.render_config("dovecot.conf.j2", "/etc/dovecot/dovecot.conf")
files = [
"/etc/dovecot/mail_plugins",
"/etc/dovecot/mail_plugins_imap",
"/etc/dovecot/mail_plugins_lmtp",
"/templates/quarantine.tpl"
]
for file in files:
self.set_permissions(file, 0o644)
try:
# Migrate old sieve_after file
self.move_file("/etc/dovecot/sieve_after", "/var/vmail/sieve/global_sieve_after.sieve")
except Exception as e:
pass
try:
# Cleanup random user maildirs
self.remove("/var/vmail/mailcow.local", wipe_contents=True)
except Exception as e:
pass
try:
# Cleanup PIDs
self.remove("/tmp/quarantine_notify.pid")
except Exception as e:
pass
try:
self.remove("/var/run/dovecot/master.pid")
except Exception as e:
pass
# Check permissions of vmail/index/garbage directories.
# Do not do this every start-up, it may take a very long time. So we use a stat check here.
files = [
"/var/vmail",
"/var/vmail/_garbage",
"/var/vmail_index"
]
for file in files:
path = Path(file)
try:
stat_info = path.stat()
current_user = pwd.getpwuid(stat_info.st_uid).pw_name
if current_user != "vmail":
print(f"Ownership of {path} is {current_user}, fixing to vmail:vmail...")
self.set_owner(path, user="vmail", group="vmail", recursive=True)
else:
print(f"Ownership of {path} is already correct (vmail)")
except Exception as e:
print(f"Error checking ownership of {path}: {e}")
# Compile sieve scripts
files = [
"/var/vmail/sieve/global_sieve_before.sieve",
"/var/vmail/sieve/global_sieve_after.sieve",
"/usr/lib/dovecot/sieve/report-spam.sieve",
"/usr/lib/dovecot/sieve/report-ham.sieve",
]
for file in files:
self.run_command(["sievec", file], check=False)
# Fix permissions
for path in Path("/etc/dovecot/sql").glob("*.conf"):
self.set_owner(path, "root", "root")
self.set_permissions(path, 0o640)
files = [
"/etc/dovecot/auth/passwd-verify.lua",
*Path("/etc/dovecot/sql").glob("dovecot-dict-sql-sieve*"),
*Path("/etc/dovecot/sql").glob("dovecot-dict-sql-quota*")
]
for file in files:
self.set_owner(file, "root", "dovecot")
self.set_permissions("/etc/dovecot/auth/passwd-verify.lua", 0o640)
for file in ["/var/vmail/sieve", "/var/volatile", "/var/vmail_index"]:
self.set_owner(file, "vmail", "vmail", recursive=True)
self.run_command(["adduser", "vmail", "tty"])
self.run_command(["chmod", "g+rw", "/dev/console"])
self.set_owner("/dev/console", "root", "tty")
files = [
"/usr/lib/dovecot/sieve/rspamd-pipe-ham",
"/usr/lib/dovecot/sieve/rspamd-pipe-spam",
"/usr/local/bin/imapsync_runner.pl",
"/usr/local/bin/imapsync",
"/usr/local/bin/trim_logs.sh",
"/usr/local/bin/sa-rules.sh",
"/usr/local/bin/clean_q_aged.sh",
"/usr/local/bin/maildir_gc.sh",
"/usr/local/sbin/stop-supervisor.sh",
"/usr/local/bin/quota_notify.py",
"/usr/local/bin/repl_health.sh",
"/usr/local/bin/optimize-fts.sh"
]
for file in files:
self.set_permissions(file, 0o755)
# Collect SA rules once now
self.run_command(["/usr/local/bin/sa-rules.sh"], check=False)
self.generate_mail_crypt_keys()
self.cleanup_imapsync_jobs()
self.generate_guid_version()
def get_valid_cert_dirs(self):
"""
Returns a mapping of domains to their certificate directory path.
Example:
{
"example.com": "/etc/ssl/mail/example.com/",
"www.example.com": "/etc/ssl/mail/example.com/"
}
"""
sni_map = {}
base_path = Path("/etc/ssl/mail")
if not base_path.exists():
return sni_map
for cert_dir in base_path.iterdir():
if not cert_dir.is_dir():
continue
domains_file = cert_dir / "domains"
cert_file = cert_dir / "cert.pem"
key_file = cert_dir / "key.pem"
if not (domains_file.exists() and cert_file.exists() and key_file.exists()):
continue
with open(domains_file, "r") as f:
domains = [line.strip() for line in f if line.strip()]
for domain in domains:
sni_map[domain] = str(cert_dir)
return sni_map
def generate_mail_crypt_keys(self):
"""
Ensures mail_crypt EC keypair exists. Generates if missing. Adjusts permissions.
"""
key_dir = Path("/mail_crypt")
priv_key = key_dir / "ecprivkey.pem"
pub_key = key_dir / "ecpubkey.pem"
# Generate keys if they don't exist or are empty
if not priv_key.exists() or priv_key.stat().st_size == 0 or \
not pub_key.exists() or pub_key.stat().st_size == 0:
self.run_command(
"openssl ecparam -name prime256v1 -genkey | openssl pkey -out /mail_crypt/ecprivkey.pem",
shell=True
)
self.run_command(
"openssl pkey -in /mail_crypt/ecprivkey.pem -pubout -out /mail_crypt/ecpubkey.pem",
shell=True
)
# Set ownership to UID 401 (dovecot)
self.set_owner(priv_key, user='401')
self.set_owner(pub_key, user='401')
def cleanup_imapsync_jobs(self):
"""
Cleans up stale imapsync locks and resets running status in the database.
Deletes the imapsync_busy.lock file if present and sets `is_running` to 0
in the `imapsync` table, if it exists.
Logs:
Any issues with file operations or SQL execution.
"""
lock_file = Path("/tmp/imapsync_busy.lock")
if lock_file.exists():
try:
lock_file.unlink()
except Exception as e:
print(f"Failed to remove lock file: {e}")
try:
cursor = self.mysql_conn.cursor()
cursor.execute("SHOW TABLES LIKE 'imapsync'")
result = cursor.fetchone()
if result:
cursor.execute("UPDATE imapsync SET is_running='0'")
self.mysql_conn.commit()
cursor.close()
except Exception as e:
print(f"Error updating imapsync table: {e}")
def generate_guid_version(self):
"""
Waits for the `versions` table to be created, then generates a GUID
based on the mail hostname and Dovecot's public key and inserts it
into the `versions` table.
If the key or hash is missing or malformed, marks it as INVALID.
"""
try:
result = self.run_command(["doveconf", "-P"], check=True)
pubkey_path = None
for line in result.stdout.splitlines():
if "mail_crypt_global_public_key" in line:
parts = line.split('<')
if len(parts) > 1:
pubkey_path = parts[1].strip()
break
if pubkey_path and Path(pubkey_path).exists():
with open(pubkey_path, "rb") as key_file:
pubkey_data = key_file.read()
hostname = self.env_vars.get("MAILCOW_HOSTNAME", "mailcow.local").encode("utf-8")
concat = hostname + pubkey_data
guid = hashlib.sha256(concat).hexdigest()
if len(guid) == 64:
version_value = guid
else:
version_value = "INVALID"
cursor = self.mysql_conn.cursor()
cursor.execute(
"REPLACE INTO versions (application, version) VALUES (%s, %s)",
("GUID", version_value)
)
self.mysql_conn.commit()
cursor.close()
else:
print("Public key not found or unreadable. GUID not generated.")
except Exception as e:
print(f"Failed to generate or store GUID: {e}")