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https://github.com/httpie/cli.git
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110 lines
3.3 KiB
Python
110 lines
3.3 KiB
Python
import ssl
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from typing import NamedTuple, Optional
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# noinspection PyPackageRequirements
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from urllib3.util.ssl_ import (
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create_urllib3_context,
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resolve_ssl_version,
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)
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from .adapters import HTTPAdapter
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from .compat import ensure_default_certs_loaded
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SSL_VERSION_ARG_MAPPING = {
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'ssl2.3': 'PROTOCOL_SSLv23',
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'ssl3': 'PROTOCOL_SSLv3',
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'tls1': 'PROTOCOL_TLSv1',
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'tls1.1': 'PROTOCOL_TLSv1_1',
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'tls1.2': 'PROTOCOL_TLSv1_2',
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'tls1.3': 'PROTOCOL_TLSv1_3',
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}
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AVAILABLE_SSL_VERSION_ARG_MAPPING = {
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arg: getattr(ssl, constant_name)
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for arg, constant_name in SSL_VERSION_ARG_MAPPING.items()
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if hasattr(ssl, constant_name)
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}
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class HTTPieCertificate(NamedTuple):
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cert_file: Optional[str] = None
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key_file: Optional[str] = None
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key_password: Optional[str] = None
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def to_raw_cert(self):
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"""Synthesize a requests-compatible (2-item tuple of cert and key file)
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object from HTTPie's internal representation of a certificate."""
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return self.cert_file, self.key_file
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class HTTPieHTTPSAdapter(HTTPAdapter):
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def __init__(
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self,
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verify: bool,
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ssl_version: str = None,
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ciphers: str = None,
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**kwargs
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):
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self._ssl_context = self._create_ssl_context(
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verify=verify,
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ssl_version=ssl_version,
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ciphers=ciphers,
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)
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super().__init__(**kwargs)
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def init_poolmanager(self, *args, **kwargs):
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kwargs['ssl_context'] = self._ssl_context
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return super().init_poolmanager(*args, **kwargs)
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def proxy_manager_for(self, *args, **kwargs):
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kwargs['ssl_context'] = self._ssl_context
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return super().proxy_manager_for(*args, **kwargs)
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def cert_verify(self, conn, url, verify, cert):
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if isinstance(cert, HTTPieCertificate):
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conn.key_password = cert.key_password
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cert = cert.to_raw_cert()
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return super().cert_verify(conn, url, verify, cert)
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@staticmethod
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def _create_ssl_context(
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verify: bool,
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ssl_version: str = None,
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ciphers: str = None,
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) -> 'ssl.SSLContext':
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ssl_context = create_urllib3_context(
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ciphers=ciphers,
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ssl_version=resolve_ssl_version(ssl_version),
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# Since we are using a custom SSL context, we need to pass this
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# here manually, even though it’s also passed to the connection
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# in `super().cert_verify()`.
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cert_reqs=ssl.CERT_REQUIRED if verify else ssl.CERT_NONE
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)
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ensure_default_certs_loaded(ssl_context)
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return ssl_context
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@classmethod
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def get_default_ciphers_names(cls):
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return [cipher['name'] for cipher in cls._create_ssl_context(verify=False).get_ciphers()]
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def _is_key_file_encrypted(key_file):
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"""Detects if a key file is encrypted or not.
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Copy of the internal urllib function (urllib3.util.ssl_)"""
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with open(key_file, "r") as f:
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for line in f:
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# Look for Proc-Type: 4,ENCRYPTED
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if "ENCRYPTED" in line:
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return True
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return False
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# We used to import the default set of TLS ciphers from urllib3, but they removed it.
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# Instead, now urllib3 uses the list of ciphers configured by the system.
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# <https://github.com/httpie/cli/pull/1501>
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DEFAULT_SSL_CIPHERS_STRING = ':'.join(HTTPieHTTPSAdapter.get_default_ciphers_names())
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