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41fd8411cf
`VCRHTTPResponse.close` method must be defined for urllib3. `VCRHTTPResponse.read` does not need to care about the paremeters passed to it
107 lines
3.6 KiB
Python
107 lines
3.6 KiB
Python
from httplib import HTTPConnection, HTTPSConnection, HTTPMessage
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from cStringIO import StringIO
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from .files import save_cassette, load_cassette
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from .cassette import Cassette
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class VCRHTTPResponse(object):
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"""
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Stub reponse class that gets returned instead of a HTTPResponse
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"""
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def __init__(self, recorded_response):
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self.recorded_response = recorded_response
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self.reason = recorded_response['status']['message']
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self.status = recorded_response['status']['code']
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self.version = None
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self._content = StringIO(self.recorded_response['body']['string'])
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self.msg = HTTPMessage(StringIO(''))
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for k, v in self.recorded_response['headers'].iteritems():
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self.msg.addheader(k, v)
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self.length = self.msg.getheader('content-length') or None
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def read(self, *args, **kwargs):
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# Note: I'm pretty much ignoring any chunking stuff because
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# I don't really understand what it is or how it works.
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return self._content.read(*args, **kwargs)
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def close(self):
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return True
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def isclosed(self):
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# Urllib3 seems to call this because it actually uses
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# the weird chunking support in httplib
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return True
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def getheaders(self):
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return self.recorded_response['headers'].iteritems()
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class VCRConnectionMixin:
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def _load_old_response(self):
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old_cassette = load_cassette(self._vcr_cassette_path)
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if old_cassette:
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return old_cassette.get_response(self._vcr)
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def request(self, method, url, body=None, headers={}):
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"""
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Persist the request metadata in self._vcr
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"""
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self._vcr = {
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'method': method,
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'url': url,
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'body': body,
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'headers': headers,
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}
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old_cassette = load_cassette(self._vcr_cassette_path)
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if old_cassette and old_cassette.get_request(self._vcr):
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return
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self._cassette.requests.append(dict(
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method=method,
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url=url,
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body=body,
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headers=headers
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))
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self._baseclass.request(self, method, url, body=body, headers=headers)
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def getresponse(self, buffering=False):
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old_response = self._load_old_response()
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if not old_response:
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response = HTTPConnection.getresponse(self)
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self._cassette.responses.append({
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'status': {'code': response.status, 'message': response.reason},
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'headers': dict(response.getheaders()),
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'body': {'string': response.read()},
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})
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save_cassette(self._vcr_cassette_path, self._cassette)
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old_response = self._load_old_response()
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return VCRHTTPResponse(old_response)
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class VCRHTTPConnection(VCRConnectionMixin, HTTPConnection):
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# Can't use super since this is an old-style class
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_baseclass = HTTPConnection
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def __init__(self, *args, **kwargs):
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self._cassette = Cassette()
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HTTPConnection.__init__(self, *args, **kwargs)
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class VCRHTTPSConnection(VCRConnectionMixin, HTTPSConnection):
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_baseclass = HTTPSConnection
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def __init__(self, *args, **kwargs):
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"""
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I overrode the init and copied a lot of the code from the parent
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class because HTTPConnection when this happens has been replaced
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by VCRHTTPConnection, but doing it here lets us use the original
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one.
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"""
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HTTPConnection.__init__(self, *args, **kwargs)
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self.key_file = kwargs.pop('key_file', None)
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self.cert_file = kwargs.pop('cert_file', None)
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self._cassette = Cassette()
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