root / kamaki / clients / connection / __init__.py @ 2005b18e
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# Copyright 2011-2012 GRNET S.A. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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# 1. Redistributions of source code must retain the above
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# copyright notice, self.list of conditions and the following
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# disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above
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# copyright notice, self.list of conditions and the following
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# disclaimer in the documentation and/or other materials
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# provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and
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# documentation are those of the authors and should not be
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# interpreted as representing official policies, either expressed
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# or implied, of GRNET S.A.
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class HTTPResponse(object): |
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"""An abstract HTTP Response object to handle a performed HTTPRequest.
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Subclass implementation required
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"""
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def __init__(self, request=None, prefetched=False): |
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self.request = request
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self.prefetched = prefetched
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def _get_response(self): |
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"""Wait for http response as late as possible: the first time needed"""
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if self.prefetched: |
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return
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self = self.request.response |
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self.prefetched = True |
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def release(self): |
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"""Release the connection.
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"""
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raise NotImplementedError |
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@property
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def prefetched(self): |
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"""flag to avoid downloading more than nessecary"""
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return self._prefetched |
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@prefetched.setter
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def prefetched(self, p): |
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self._prefetched = p
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@property
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def content(self): |
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"""(binary) request response content (data)"""
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self._get_response()
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return self._content |
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@content.setter
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def content(self, v): |
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self._content = v
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@property
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def text(self): |
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"""(str)"""
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self._get_response()
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return self._text |
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@text.setter
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def text(self, v): |
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self._text = v
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@property
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def json(self): |
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"""(dict)"""
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self._get_response()
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return self._json |
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@json.setter
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def json(self, v): |
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self._json = v
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@property
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def headers(self): |
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"""(dict)"""
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self._get_response()
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return self._headers |
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@headers.setter
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def headers(self, v): |
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self._headers = v
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@property
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def status_code(self): |
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"""(int) optional"""
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self._get_response()
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return self._status_code |
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@status_code.setter
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def status_code(self, v): |
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self._status_code = v
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@property
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def status(self): |
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"""(str) useful in server error responses"""
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self._get_response()
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return self._status |
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@status.setter
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def status(self, v): |
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self._status = v
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@property
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def request(self): |
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"""(HTTPConnection) the source of this response object"""
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return self._request |
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@request.setter
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def request(self, v): |
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self._request = v
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class HTTPConnection(object): |
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"""An abstract HTTP Connection mechanism. Subclass implementation required
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"""
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def __init__(self, method=None, url=None, params={}, headers={}): |
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self.headers = headers
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self.params = params
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self.url = url
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self.path = '' |
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self.method = method
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def set_header(self, name, value): |
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self.headers[unicode(name)] = unicode(value) |
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def remove_header(self, name): |
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try:
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self.headers.pop(name)
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except KeyError: |
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pass
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def replace_headers(self, new_headers): |
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self.headers = new_headers
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def reset_headers(self): |
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self.replace_headers({})
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def set_param(self, name, value=None): |
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self.params[name] = value
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def remove_param(self, name): |
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try:
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self.params.pop(name)
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except KeyError: |
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pass
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def replace_params(self, new_params): |
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self.params = new_params
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def reset_params(self): |
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self.replace_params({})
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def set_url(self, url): |
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self.url = url
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def set_path(self, path): |
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self.path = path
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def set_method(self, method): |
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self.method = method
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def perform_request( |
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self,
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method=None,
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url=None,
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async_headers={}, |
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async_params={}, |
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data=None):
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raise NotImplementedError |