| """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 = os.path.join( |
| os.path.dirname(os.path.abspath(__file__)), "cacerts.txt" |
| ) |
| |
| |
| 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()) |
