Method load_cert_chain

src/urllib3/contrib/pyopenssl.py:479–493

(
        self,
        certfile: str,
        keyfile: str | None = None,
        password: str | None = None,
    )

            raise ssl.SSLError(fclass="st">"unable to load trusted certificates: {e!r}") from e

    def load_cert_chain(
        self,
        certfile: str,
        keyfile: str | None = None,
        password: str | None = None,
    ) -> None:
        try:
            self._ctx.use_certificate_chain_file(certfile)
            if password is not None:
                if not isinstance(password, bytes):
                    password = password.encode(class="st">"utf-8")  class="cm"># type: ignore[assignment]
                self._ctx.set_passwd_cb(lambda *_: password)
            self._ctx.use_privatekey_file(keyfile or certfile)
        except OpenSSL.SSL.Error as e:
            raise ssl.SSLError(fclass="st">"Unable to load certificate chain: {e!r}") from e

    def set_alpn_protocols(self, protocols: list[bytes | str]) -> None:
        protocols = [util.util.to_bytes(p, class="st">"ascii") for p in protocols]