372 lines
12 KiB
Python
Executable file
372 lines
12 KiB
Python
Executable file
#!/usr/bin/env python3
|
|
|
|
# DEPENDENCY: python-consul
|
|
import consul
|
|
|
|
# DEPENDENCY: python-ldap
|
|
import ldap
|
|
|
|
# DEPENDENCY: passlib
|
|
from passlib.hash import ldap_salted_sha1
|
|
|
|
import os
|
|
import sys
|
|
import glob
|
|
import subprocess
|
|
import getpass
|
|
import base64
|
|
from secrets import token_bytes
|
|
|
|
|
|
"""
|
|
TODO: this will be a utility to handle secrets in the Consul database
|
|
for the various components of the Deuxfleurs infrastructure
|
|
|
|
Functionnalities:
|
|
- check that secrets are correctly configured
|
|
- help user fill in secrets
|
|
- create LDAP service users and fill in corresponding secrets
|
|
- maybe one day: manage SSL certificates and keys
|
|
|
|
It uses files placed in <module_name>/secrets/* to know what secrets
|
|
it should handle. These secret files contain directives for what to do
|
|
about these secrets.
|
|
|
|
Example directives:
|
|
|
|
USER <description>
|
|
(a secret that must be filled in by the user)
|
|
|
|
USER_LONG <description>
|
|
(the same, indicates that the secret fits on several lines)
|
|
|
|
CMD <command>
|
|
(a secret that is generated by running this command)
|
|
|
|
CONST <constant value>
|
|
(the secret has a constant value set here)
|
|
|
|
CONST_LONG
|
|
<constant value, several lines>
|
|
(same)
|
|
|
|
SERVICE_DN <service name> <service description>
|
|
(the LDAP DN of a service user)
|
|
|
|
SERVICE_PASSWORD <service name>
|
|
(the LDAP password for the corresponding service user)
|
|
|
|
SSL_CERT <cert name> <list of domains>
|
|
(a SSL domain for the given domains)
|
|
|
|
SSL_KEY <cert name>
|
|
(the SSL key going with corresponding certificate)
|
|
|
|
RSA_PUBLIC_KEY <key name> <key description>
|
|
(a public RSA key)
|
|
|
|
RSA_PRIVATE_KEY <key name>
|
|
(the corresponding private RSA key)
|
|
"""
|
|
|
|
|
|
# Parameters
|
|
LDAP_URL = "ldap://localhost:1389"
|
|
SERVICE_DN_SUFFIX = "ou=services,ou=users,dc=deuxfleurs,dc=fr"
|
|
consul_server = consul.Consul()
|
|
|
|
|
|
# ----
|
|
|
|
USER = "USER"
|
|
USER_LONG = "USER_LONG"
|
|
CMD = "CMD"
|
|
CONST = "CONST"
|
|
CONST_LONG = "CONST_LONG"
|
|
SERVICE_DN = "SERVICE_DN"
|
|
SERVICE_PASSWORD = "SERVICE_PASSWORD"
|
|
SSL_CERT = "SSL_CERT"
|
|
SSL_KEY = "SSL_KEY"
|
|
RSA_PUBLIC_KEY = "RSA_PUBLIC_KEY"
|
|
RSA_PRIVATE_KEY = "RSA_PRIVATE_KEY"
|
|
|
|
class bcolors:
|
|
HEADER = '\033[95m'
|
|
OKBLUE = '\033[94m'
|
|
OKCYAN = '\033[96m'
|
|
OKGREEN = '\033[92m'
|
|
WARNING = '\033[93m'
|
|
FAIL = '\033[91m'
|
|
ENDC = '\033[0m'
|
|
BOLD = '\033[1m'
|
|
UNDERLINE = '\033[4m'
|
|
|
|
def read_secret(key, file_path):
|
|
lines = [l.strip() for l in open(file_path, "r")]
|
|
if len(lines) == 0:
|
|
print(bcolors.FAIL, "ERROR:", bcolors.ENDC, "Empty file in", file_path)
|
|
sys.exit(-1)
|
|
l0 = lines[0].split(" ")
|
|
stype = l0[0]
|
|
secret = {"type": stype, "key": key}
|
|
if stype in [USER, USER_LONG]:
|
|
secret["desc"] = " ".join(l0[1:])
|
|
elif stype == CMD:
|
|
secret["cmd"] = " ".join(l0[1:])
|
|
elif stype == CONST:
|
|
secret["value"] = " ".join(l0[1:])
|
|
elif stype == CONST_LONG:
|
|
secret["value"] = "\n".join(lines[1:])
|
|
elif stype in [SERVICE_DN, SERVICE_PASSWORD]:
|
|
secret["service"] = l0[1]
|
|
if stype == SERVICE_DN:
|
|
secret["service_desc"] = " ".join(l0[2:])
|
|
elif stype in [SSL_CERT, SSL_KEY]:
|
|
secret["cert_name"] = l0[1]
|
|
if stype == SSL_CERT:
|
|
secret["cert_domains"] = l0[2:]
|
|
elif stype in [RSA_PUBLIC_KEY, RSA_PRIVATE_KEY]:
|
|
secret["key_name"] = l0[1]
|
|
if stype == RSA_PUBLIC_KEY:
|
|
secret["key_desc"] = " ".join(l0[2:])
|
|
else:
|
|
print(bcolors.FAIL, "ERROR:", bcolors.ENDC, "Invalid secret type", stype, "in", file_path)
|
|
sys.exit(-1)
|
|
|
|
return secret
|
|
|
|
def read_secrets(module_list):
|
|
secrets = {}
|
|
for mod in module_list:
|
|
for file_path in glob.glob(mod.strip('/') + "/secrets/**", recursive=True):
|
|
if os.path.isfile(file_path):
|
|
key = '/'.join(file_path.split("/")[1:])
|
|
secrets[key] = read_secret(key, file_path)
|
|
return secrets
|
|
|
|
def get_secrets_services(secrets):
|
|
services = {}
|
|
for key, secret in secrets.items():
|
|
if secret["type"] not in [SERVICE_DN, SERVICE_PASSWORD]:
|
|
continue
|
|
svc = secret["service"]
|
|
print(svc, "@", key, bcolors.OKCYAN, "...", bcolors.ENDC)
|
|
if svc not in services:
|
|
services[svc] = {
|
|
"dn": "cn=%s,%s"%(svc, SERVICE_DN_SUFFIX),
|
|
"pass": None,
|
|
"dn_at": [],
|
|
"pass_at": [],
|
|
}
|
|
if secret["type"] == SERVICE_DN:
|
|
services[svc]["dn_at"].append(key)
|
|
services[svc]["desc"] = secret["service_desc"]
|
|
|
|
if secret["type"] == SERVICE_PASSWORD:
|
|
services[svc]["pass_at"].append(key)
|
|
_, data = consul_server.kv.get(key)
|
|
if data is not None:
|
|
if services[svc]["pass"] is None:
|
|
services[svc]["pass"] = data["Value"].decode('ascii').strip()
|
|
|
|
return services
|
|
|
|
ldap_admin_conn = None
|
|
def get_ldap_admin_conn():
|
|
global ldap_admin_conn
|
|
if ldap_admin_conn is None:
|
|
ldap_admin_conn = ldap.initialize(LDAP_URL)
|
|
ldap_user = input("LDAP admin user (full DN, please!): ")
|
|
ldap_pass = getpass.getpass("LDAP admin password: ")
|
|
ldap_admin_conn.simple_bind_s(ldap_user, ldap_pass)
|
|
return ldap_admin_conn
|
|
|
|
# ---- CHECK COMMAND ----
|
|
|
|
def check_secrets(module_list):
|
|
secrets = read_secrets(module_list)
|
|
print("Found", len(secrets), "secrets to check")
|
|
print()
|
|
|
|
check_secrets_presence(secrets)
|
|
check_secrets_services(secrets)
|
|
|
|
def check_secrets_presence(secrets):
|
|
print("Checking secrets presence...")
|
|
for key in secrets.keys():
|
|
_, data = consul_server.kv.get(key)
|
|
if data is None:
|
|
print(key, bcolors.FAIL, "x", bcolors.ENDC)
|
|
else:
|
|
print(key, bcolors.OKGREEN, "✓", bcolors.ENDC)
|
|
print()
|
|
|
|
def check_secrets_services(secrets):
|
|
print("Checking secrets for LDAP service users...")
|
|
services = get_secrets_services(secrets)
|
|
|
|
for svc_name, svc in services.items():
|
|
for dn_key in svc["dn_at"]:
|
|
_, data = consul_server.kv.get(dn_key)
|
|
if data is not None:
|
|
got_val = data["Value"].decode('ascii').strip()
|
|
if got_val != svc["dn"]:
|
|
print(svc_name, "wrong DN at", dn_key, bcolors.FAIL, "x", bcolors.ENDC)
|
|
print("got:", got_val, "instead of:", svc["dn"])
|
|
|
|
if svc["pass"] is None:
|
|
print(svc_name, bcolors.FAIL, "no password stored", bcolors.ENDC)
|
|
else:
|
|
for pass_key in svc["pass_at"]:
|
|
_, data = consul_server.kv.get(pass_key)
|
|
if data is not None:
|
|
got_val = data["Value"].decode('ascii').strip()
|
|
if got_val != svc["pass"]:
|
|
print(svc_name, "wrong pass at", dn_key, bcolors.FAIL, "x", bcolors.ENDC)
|
|
|
|
l = ldap.initialize(LDAP_URL)
|
|
try:
|
|
l.simple_bind_s(svc["dn"], svc["pass"])
|
|
print(svc_name, bcolors.OKGREEN, "✓", bcolors.ENDC)
|
|
except Exception as e:
|
|
print(svc_name, bcolors.FAIL, e, bcolors.ENDC)
|
|
print()
|
|
|
|
|
|
# ---- GEN COMMAND ----
|
|
|
|
def gen_secrets(module_list, regen):
|
|
secrets = read_secrets(module_list)
|
|
print("Found", len(secrets), "secrets to check and maybe generate")
|
|
print()
|
|
|
|
gen_secrets_base(secrets, regen)
|
|
gen_secrets_services(secrets, regen)
|
|
|
|
check_secrets_presence(secrets)
|
|
check_secrets_services(secrets)
|
|
|
|
def gen_secrets_base(secrets, regen):
|
|
print("Filling in user secrets and cmd secrets...")
|
|
|
|
for key, secret in secrets.items():
|
|
_, data = consul_server.kv.get(key)
|
|
if data is not None and not regen:
|
|
continue
|
|
|
|
if secret["type"] == USER:
|
|
print("----")
|
|
print(key)
|
|
print("Description:", secret["desc"])
|
|
print("Enter value for secret, or ^C to skip:")
|
|
try:
|
|
val = input().strip()
|
|
consul_server.kv.put(key, val)
|
|
print(bcolors.OKCYAN, "Value set.", bcolors.ENDC)
|
|
except KeyboardInterrupt:
|
|
print(bcolors.WARNING, "Skipped.", bcolors.ENDC)
|
|
|
|
if secret["type"] == USER_LONG:
|
|
print("----")
|
|
print(key)
|
|
print("Description:", secret["desc"])
|
|
print("Enter value for secret, or ^C to skip:")
|
|
print("THIS IS A LONG VALUE, ENTER SEVERAL LINES AND FINISH WITH A LINE CONTAINING A SINGLE .")
|
|
try:
|
|
lines = []
|
|
while True:
|
|
line = input().strip()
|
|
if line == ".":
|
|
break
|
|
lines.append(line)
|
|
val = "\n".join(lines)
|
|
consul_server.kv.put(key, val)
|
|
print(bcolors.OKCYAN, "Value set.", bcolors.ENDC)
|
|
except KeyboardInterrupt:
|
|
print(bcolors.WARNING, "Skipped.", bcolors.ENDC)
|
|
|
|
if secret["type"] in [CONST, CONST_LONG]:
|
|
print("----")
|
|
print(key)
|
|
print("Resetting to constant value.")
|
|
consul_server.kv.put(key, secret["value"])
|
|
print(bcolors.OKCYAN, "Value set.", bcolors.ENDC)
|
|
|
|
if secret["type"] == CMD:
|
|
print("----")
|
|
print(key)
|
|
print("Executing command:", secret["cmd"])
|
|
val = subprocess.check_output(["sh", "-c", secret["cmd"]])
|
|
consul_server.kv.put(key, val)
|
|
print(bcolors.OKCYAN, "Value set.", bcolors.ENDC)
|
|
|
|
print()
|
|
|
|
def gen_secrets_services(secrets, regen):
|
|
print("Generating LDAP service accounts...")
|
|
services = get_secrets_services(secrets)
|
|
|
|
for svc_name, svc in services.items():
|
|
print("----")
|
|
print("Service:", svc_name)
|
|
print("Description:", svc["desc"])
|
|
|
|
for dn_key in svc["dn_at"]:
|
|
_, data = consul_server.kv.get(dn_key)
|
|
if data is None or data["Value"].decode('ascii').strip() != svc["dn"]:
|
|
print(bcolors.OKCYAN, "Setting DN", bcolors.ENDC, "at", dn_key)
|
|
consul_server.kv.put(dn_key, svc["dn"])
|
|
|
|
if svc["pass"] is None or regen:
|
|
print(bcolors.OKCYAN, "Generating new password", bcolors.ENDC)
|
|
svc["pass"] = base64.urlsafe_b64encode(token_bytes(12)).decode('ascii')
|
|
|
|
l = ldap.initialize(LDAP_URL)
|
|
try:
|
|
l.simple_bind_s(svc["dn"], svc["pass"])
|
|
except:
|
|
fix_service_user(svc)
|
|
|
|
for pass_key in svc["pass_at"]:
|
|
_, data = consul_server.kv.get(pass_key)
|
|
if data is None or data["Value"].decode('ascii').strip() != svc["pass"]:
|
|
print(bcolors.OKCYAN, "Setting password", bcolors.ENDC, "at", pass_key)
|
|
consul_server.kv.put(pass_key, svc["pass"])
|
|
|
|
print()
|
|
|
|
def fix_service_user(svc):
|
|
print("Fixing service user", svc["dn"], "...")
|
|
l = get_ldap_admin_conn()
|
|
res = l.search_s(svc["dn"], ldap.SCOPE_BASE, "objectclass=*")
|
|
pass_crypt = ldap_salted_sha1.hash(svc["pass"])
|
|
if res is None or len(res) == 0:
|
|
print(bcolors.OKCYAN, "Creating entity...", bcolors.ENDC)
|
|
l.add_s(svc["dn"],
|
|
[
|
|
("objectclass", [b"person", b"top"]),
|
|
("displayname", [svc["desc"].encode('ascii')]),
|
|
("userpassword", [pass_crypt.encode('ascii')]),
|
|
])
|
|
else:
|
|
print(bcolors.OKCYAN, "Resetting entity password", bcolors.ENDC)
|
|
l.modify_s(svc["dn"],
|
|
[
|
|
(ldap.MOD_REPLACE, "userpassword", [pass_crypt.encode('ascii')])
|
|
])
|
|
|
|
# ---- MAIN ----
|
|
|
|
if __name__ == "__main__":
|
|
for i, val in enumerate(sys.argv):
|
|
if val == "check":
|
|
check_secrets(sys.argv[i+1:])
|
|
break
|
|
elif val == "gen":
|
|
gen_secrets(sys.argv[i+1:], False)
|
|
break
|
|
elif val == "regen":
|
|
gen_secrets(sys.argv[i+1:], True)
|
|
break
|
|
|
|
|