urlfetch.py 文件源码

python
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项目:plugin.video.streamondemand-pureita 作者: orione7 项目源码 文件源码
def request(self, operation, url, data=None, headers=None):
    """Performs an HTTP call to the server, supports GET, POST, PUT, and
    DELETE.

    Usage example, perform and HTTP GET on http://www.google.com/:
      import atom.http
      client = atom.http.HttpClient()
      http_response = client.request('GET', 'http://www.google.com/')

    Args:
      operation: str The HTTP operation to be performed. This is usually one
          of 'GET', 'POST', 'PUT', or 'DELETE'
      data: filestream, list of parts, or other object which can be converted
          to a string. Should be set to None when performing a GET or DELETE.
          If data is a file-like object which can be read, this method will
          read a chunk of 100K bytes at a time and send them.
          If the data is a list of parts to be sent, each part will be
          evaluated and sent.
      url: The full URL to which the request should be sent. Can be a string
          or atom.url.Url.
      headers: dict of strings. HTTP headers which should be sent
          in the request.
    """
    all_headers = self.headers.copy()
    if headers:
      all_headers.update(headers)

    # Construct the full payload.
    # Assume that data is None or a string.
    data_str = data
    if data:
      if isinstance(data, list):
        # If data is a list of different objects, convert them all to strings
        # and join them together.
        converted_parts = [__ConvertDataPart(x) for x in data]
        data_str = ''.join(converted_parts)
      else:
        data_str = __ConvertDataPart(data)

    # If the list of headers does not include a Content-Length, attempt to
    # calculate it based on the data object.
    if data and 'Content-Length' not in all_headers:
      all_headers['Content-Length'] = len(data_str)

    # Set the content type to the default value if none was set.
    if 'Content-Type' not in all_headers:
      all_headers['Content-Type'] = 'application/atom+xml'

    # Lookup the urlfetch operation which corresponds to the desired HTTP verb.
    if operation == 'GET':
      method = urlfetch.GET
    elif operation == 'POST':
      method = urlfetch.POST
    elif operation == 'PUT':
      method = urlfetch.PUT
    elif operation == 'DELETE':
      method = urlfetch.DELETE
    else:
      method = None
    return HttpResponse(urlfetch.Fetch(url=str(url), payload=data_str,
        method=method, headers=all_headers))
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