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"""Utilities for certificate management."""
import os
certifi_available = False
certifi_where = None
try:
from certifi import where as certifi_where
certifi_available = True
except ImportError:
pass
custom_ca_locater_available = False
custom_ca_locater_where = None
try:
from ca_certs_locater import get as custom_ca_locater_where
custom_ca_locater_available = True
except ImportError:
pass
BUILTIN_CA_CERTS = "/etc/ssl/certs/ca-certificates.crt"
def where():
env = os.environ.get("HTTPLIB2_CA_CERTS")
if env is not None:
if os.path.isfile(env):
return env
else:
raise RuntimeError("Environment variable HTTPLIB2_CA_CERTS not a valid file")
if custom_ca_locater_available:
return custom_ca_locater_where()
if certifi_available:
return certifi_where()
return BUILTIN_CA_CERTS
if __name__ == "__main__":
print(where())
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