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httpie-cli/tests/test_transport_plugin.py
Ilya Sukhanov 147a066dbe
Add internal support for file-like object responses to improve adapter plugin support (#1094)
* Support `requests.response.raw` being a file-like object

Previously HTTPie relied on `requests.models.Response.raw` being
`urllib3.HTTPResponse`. The `requests` documentation specifies that
(requests.models.Response.raw)[https://docs.python-requests.org/en/master/api/#requests.Response.raw]
is a file-like object but allows for other types for internal use.

This change introduces graceful handling for scenarios when
`requests.models.Response.raw` is not `urllib3.HTTPResponse`. In such a scenario
HTTPie now falls back to extracting metadata from `requests.models.Response`
directly instead of direct access from protected protected members such as
`response.raw._original_response`. A side effect in this fallback procedure is
that we can no longer determine HTTP protocol version and report it as `1.1`.

This change is necessary to make it possible to implement `TransportPlugins`
without having to also needing to emulate internal behavior of `urlib3` and
`http.client`.

* Load cookies from `response.headers` instead of `response.raw._original_response.msg._headers`

`response.cookies` was not utilized as it not possible to construct original
payload from `http.cookiejar.Cookie`. Data is stored in lossy format. For example
`Cookie.secure` defaults to `False` so we cannot distinguish if `Cookie.secure` was
set to `False` or was not set at all. Same problem applies to other fields also.

* Simpler HTTP envelope data extraction

* Test cookie extraction and make cookie presentment backwards compatible

Co-authored-by: Mickaël Schoentgen <contact@tiger-222.fr>
Co-authored-by: Jakub Roztocil <jakub@roztocil.co>
2021-07-06 21:00:06 +02:00

46 lines
1.2 KiB
Python

from io import BytesIO
from requests.adapters import BaseAdapter
from requests.models import Response
from requests.utils import get_encoding_from_headers
from httpie.plugins import TransportPlugin
from httpie.plugins.registry import plugin_manager
from .utils import HTTP_OK, http
SCHEME = 'http+fake'
class FakeAdapter(BaseAdapter):
def send(self, request, **kwargs):
response = Response()
response.status_code = 200
response.reason = 'OK'
response.headers = {
'Content-Type': 'text/html; charset=UTF-8',
}
response.encoding = get_encoding_from_headers(response.headers)
response.raw = BytesIO(b'<!doctype html><html>Hello</html>')
return response
class FakeTransportPlugin(TransportPlugin):
name = 'Fake Transport'
prefix = SCHEME
def get_adapter(self):
return FakeAdapter()
def test_transport_from_requests_response(httpbin):
plugin_manager.register(FakeTransportPlugin)
try:
r = http(f'{SCHEME}://example.com')
assert HTTP_OK in r
assert 'Hello' in r
assert 'Content-Type: text/html; charset=UTF-8' in r
finally:
plugin_manager.unregister(FakeTransportPlugin)