def __init__(self, address, port): self.address = address self.port = port self.max_packet_length = 0xffff self.obex_version = OBEX_Version() self.response_handler = responses.ResponseHandler() self.socket = None self._external_socket = False self.connection_id = None
def __init__(self, mitsConnection): self.max_packet_length = 0x2000 self.obex_version = OBEX_Version() self.response_handler = responses.ResponseHandler() self.con = mitsConnection self.connection_id = None
def read_data(self, data): # Extract the connection data from the complete data. extra_data = data[self.length(Message.format):self.minimum_length] obex_version, flags, max_packet_length = struct.unpack( ">"+self.format, extra_data ) self.obex_version = OBEX_Version().from_byte(obex_version) self.flags = flags self.max_packet_length = max_packet_length Request.read_data(self, data)
def __init__(self, address="", log=lambda x: None): self.address = address self.max_packet_length = 0xffff self.obex_version = OBEX_Version() self.request_handler = requests.RequestHandler() self.methods = { requests.Connect: self.connect, requests.Disconnect: self.disconnect, } self.log = log
def __init__(self, address, port): self.address = address self.port = port self.max_packet_length = 0xFFFF self.obex_version = OBEX_Version() self.response_handler = responses.ResponseHandler() self.socket = None self._external_socket = False self.connection_id = None
def decode_connection(self, socket): code, length, data = self._read_packet(socket) if code == ConnectSuccess.code: message = ConnectSuccess() elif self.message_dict.has_key(code): message = self.message_dict[code]() else: return self.UnknownMessageClass(code, length, data) obex_version, flags, max_packet_length = struct.unpack( ">BBH", data[3:7]) message.obex_version = OBEX_Version() message.obex_version.from_byte(obex_version) message.flags = flags message.max_packet_length = max_packet_length message.read_data(data) return message
class Client(object): """Client client = Client(address, port) Provides common functionality for OBEX clients, including methods for connecting to and disconnecting from a server, sending and receiving headers, and methods for higher level actions such as "get", "put", "set path" and "abort". The address used is a standard six-field bluetooth address, and the port should correspond to the port providing the service you wish to access. """ def __init__(self, mitsConnection): self.max_packet_length = 0x2000 self.obex_version = OBEX_Version() self.response_handler = responses.ResponseHandler() self.con = mitsConnection self.connection_id = None def _send_headers(self, request, header_list, max_length): """Convenience method to add headers to a request and send one or more requests with those headers.""" # Ensure that any Connection ID information is sent first. if self.connection_id: header_list.insert(0, self.connection_id) while header_list: if request.add_header(header_list[0], max_length): header_list.pop(0) else: self.con.send(request.encode()) if isinstance(request, requests.Connect): response = self.response_handler.decode_connection(self.con) else: response = self.response_handler.decode(self.con) if not isinstance(response, responses.Continue): return response request.reset_headers() # Always send at least one request. if isinstance(request, requests.Get): # Turn the last Get request containing the headers into a # Get_Final request. request.code = requests.Get_Final.code self.con.send(request.encode()) print "Request", if isinstance(request, requests.Connect): print "connection..." response = self.response_handler.decode_connection(self.con) else: print "response.." response = self.response_handler.decode(self.con) print "OK" return response def _collect_parts(self, header_list): body = [] new_headers = [] for header in header_list: if isinstance(header, headers.Body): body.append(header.data) elif isinstance(header, headers.End_Of_Body): body.append(header.data) else: new_headers.append(header) return new_headers, "".join(body) def connect(self, header_list = ()): """connect(self, header_list = ()) Sends a connection message to the server and returns its response. Typically, the response is either Success or a subclass of FailureResponse. Specific headers can be sent by passing a sequence as the header_list keyword argument. """ flags = 0 data = (self.obex_version.to_byte(), flags, self.max_packet_length) max_length = self.max_packet_length request = requests.Connect(data) header_list = list(header_list) response = self._send_headers(request, header_list, max_length) if isinstance(response, responses.ConnectSuccess): self.remote_info = response for header in response.header_data: if isinstance(header, headers.Connection_ID): # Recycle the Connection ID data to create a new header # for future use. self.connection_id = headers.Connection_ID(header.decode()) return response def disconnect(self, header_list = ()): """disconnect(self, header_list = ()) Sends a disconnection message to the server and returns its response. Typically, the response is either Success or a subclass of FailureResponse. Specific headers can be sent by passing a sequence as the header_list keyword argument. If the socket was not supplied using set_socket(), it will be closed. """ max_length = self.remote_info.max_packet_length request = requests.Disconnect() header_list = list(header_list) response = self._send_headers(request, header_list, max_length) self.connection_id = None return response def mobex_cmd(self, typ, name=None, extra_headers=()): header_list = [ headers.Type(typ), ] if name is not None: header_list.append(headers.Name(name)) header_list += extra_headers max_length = self.remote_info.max_packet_length request = requests.Put_Final() return self._send_headers(request, header_list, max_length) # TODO: Make this prettier def ugly_basic_response_error_check(self, cmdName, resp): if not isinstance(resp, responses.Success): raise Exception("%s: Got an unexpected mobex response type: '%s'" % (cmdName, type(resp))) for hdr in resp.header_data: dataLwr = hdr.data.lower() if "fail" in dataLwr or "err" in dataLwr: raise Exception("%s: Received failure response: %s" % (cmdName, str(resp))) def mobex_connection_packet(self): return self.mobex_cmd("m-obex/connection_packet") def mobex_create_folder(self, dirPath): resp = self.mobex_cmd("m-obex/fs/folder_create", dirPath) self.ugly_basic_response_error_check("folder_create", resp) return resp def mobex_delete_file(self, filePath): resp = self.mobex_cmd("m-obex/fs/file_delete", filePath) self.ugly_basic_response_error_check("file_delete", resp) return resp def put(self, name, file_data, header_list = ()): """put(self, name, file_data, header_list = ()) Sends a file with the given name, containing the file_data specified, to the server for storage in the current directory for the session, and returns the response. Additional headers can be sent by passing a sequence as the header_list keyword argument. These will be sent after the name and file length information associated with the name and file_data supplied. """ header_list = [ headers.Name(name), headers.Length(len(file_data)) ] + list(header_list) max_length = self.remote_info.max_packet_length request = requests.Put() response = self._send_headers(request, header_list, max_length) if not isinstance(response, responses.Continue): return response # Send the file data. # The optimum size is the maximum packet length accepted by the # remote device minus three bytes for the header ID and length # minus three bytes for the request. optimum_size = max_length - 3 - 3 i = 0 while i < len(file_data): data = file_data[i:i+optimum_size] i += len(data) if i < len(file_data): request = requests.Put() request.add_header(headers.Body(data, False), max_length) self.con.send(request.encode()) response = self.response_handler.decode(self.con) if not isinstance(response, responses.Continue): return response else: request = requests.Put_Final() request.add_header(headers.End_Of_Body(data, False), max_length) self.con.send(request.encode()) response = self.response_handler.decode(self.con) if not isinstance(response, responses.Success): return response return response def get(self, name = None, header_list = ()): """get(self, name = None, header_list = ()) Requests the specified file from the server's current directory for the session. If successful, returns a tuple containing a list of responses received during the operation and the file data received. If unsuccessful, a single response object is returned. Additional headers can be sent by passing a sequence as the header_list keyword argument. These will be sent after the name information. """ header_list = list(header_list) if name is not None: header_list = [headers.Name(name)] + header_list max_length = self.remote_info.max_packet_length request = requests.Get() response = self._send_headers(request, header_list, max_length) if not isinstance(response, responses.Continue) and \ not isinstance(response, responses.Success): return response # Retrieve the file data. returned_headers = [] file_data = [] request = requests.Get_Final() while isinstance(response, responses.Continue): returned_headers += response.header_data self.con.send(request.encode()) response = self.response_handler.decode(self.con) if not isinstance(response, responses.Success): return response returned_headers += response.header_data return self._collect_parts(returned_headers) def setpath(self, name = "", create_dir = False, to_parent = False, header_list = ()): """setpath(self, name = "", create_dir = False, to_parent = False, header_list = ()) Requests a change to the server's current directory for the session to the directory with the specified name, and returns the response. This method is also used to perform other actions, such as navigating to the parent directory (set to_parent to True) and creating a new directory (set create_dir to True). Additional headers can be sent by passing a sequence as the header_list keyword argument. These will be sent after the name information. """ header_list = list(header_list) if name is not None: header_list = [headers.Name(name)] + header_list max_length = self.remote_info.max_packet_length flags = 0 if not create_dir: flags |= requests.Set_Path.DontCreateDir if to_parent: flags |= requests.Set_Path.NavigateToParent request = requests.Set_Path((flags, 0)) response = self._send_headers(request, header_list, max_length) return response def abort(self, header_list = ()): """abort(self, header_list = ()) Aborts the current session and returns the server's response. Specific headers can be sent by passing a sequence as the header_list keyword argument. Warning: This method should only be called to terminate a running operation and is therefore only useful for developers who want to reimplementing existing operations. """ header_list = list(header_list) max_length = self.remote_info.max_packet_length request = requests.Abort() response = self._send_headers(request, header_list, max_length) return response
class Client: """Client client = Client(address, port) Provides common functionality for OBEX clients, including methods for connecting to and disconnecting from a server, sending and receiving headers, and methods for higher level actions such as "get", "put", "set path" and "abort". The address used is a standard six-field bluetooth address, and the port should correspond to the port providing the service you wish to access. """ def __init__(self, address, port): self.address = address self.port = port self.max_packet_length = 0xffff self.obex_version = OBEX_Version() self.response_handler = responses.ResponseHandler() self.socket = None self._external_socket = False self.connection_id = None def _send_headers(self, request, header_list, max_length): """Convenience method to add headers to a request and send one or more requests with those headers.""" # Ensure that any Connection ID information is sent first. if self.connection_id: header_list.insert(0, self.connection_id) while header_list: if request.add_header(header_list[0], max_length): header_list.pop(0) else: self.socket.sendall(request.encode()) if isinstance(request, requests.Connect): response = self.response_handler.decode_connection( self.socket) else: response = self.response_handler.decode(self.socket) if not isinstance(response, responses.Continue): return response request.reset_headers() # Always send at least one request. if isinstance(request, requests.Get): # Turn the last Get request containing the headers into a # Get_Final request. request.code = requests.Get_Final.code self.socket.sendall(request.encode()) if isinstance(request, requests.Connect): response = self.response_handler.decode_connection(self.socket) else: response = self.response_handler.decode(self.socket) return response def _collect_parts(self, header_list): body = [] new_headers = [] for header in header_list: if isinstance(header, headers.Body): body.append(header.data) elif isinstance(header, headers.End_Of_Body): body.append(header.data) else: new_headers.append(header) return new_headers, "".join(body) def set_socket(self, socket): """set_socket(self, socket) Sets the socket to be used for communication to the socket specified. If socket is None, the client will create a socket for internal use when a connection is made. This is the default behaviour. This method must not be called once a connection has been opened. Only after an existing connection has been disconnected is it safe to set a new socket. """ self.socket = socket if socket is None: self._external_socket = False else: self._external_socket = True def connect(self, header_list=()): """connect(self, header_list = ()) Sends a connection message to the server and returns its response. Typically, the response is either Success or a subclass of FailureResponse. Specific headers can be sent by passing a sequence as the header_list keyword argument. """ if not self._external_socket: self.socket = Socket() self.socket.connect((self.address, self.port)) flags = 0 data = (self.obex_version.to_byte(), flags, self.max_packet_length) max_length = self.max_packet_length request = requests.Connect(data) header_list = list(header_list) response = self._send_headers(request, header_list, max_length) if isinstance(response, responses.ConnectSuccess): self.remote_info = response for header in response.header_data: if isinstance(header, headers.Connection_ID): # Recycle the Connection ID data to create a new header # for future use. self.connection_id = headers.Connection_ID(header.decode()) elif not self._external_socket: self.socket.close() return response def disconnect(self, header_list=()): """disconnect(self, header_list = ()) Sends a disconnection message to the server and returns its response. Typically, the response is either Success or a subclass of FailureResponse. Specific headers can be sent by passing a sequence as the header_list keyword argument. If the socket was not supplied using set_socket(), it will be closed. """ max_length = self.remote_info.max_packet_length request = requests.Disconnect() header_list = list(header_list) response = self._send_headers(request, header_list, max_length) if not self._external_socket: self.socket.close() self.connection_id = None return response def put(self, name, file_data, header_list=(), callback=None): """put(self, name, file_data, header_list = (), callback = None) Sends a file with the given name, containing the file_data specified, to the server for storage in the current directory for the session. If a callback is specified, it will be called with each response obtained during the put operation. If no callback is specified, the final response is returned when the put operation is complete or an error occurs. Additional headers can be sent by passing a sequence as the header_list keyword argument. These will be sent after the name and file length information associated with the name and file_data supplied. """ for response in self._put(name, header_list): if isinstance(response, responses.Continue) or \ isinstance(response, responses.Success): # Report successful responses if using a callback. if callback: callback(response) elif callback: # Report failure responses using the callback, then return. callback(response) return else: # Return failure responses directly. return response # Finally, return the last response if not using a callback. if not callback: return response def _put(self, name, file_data, header_list=()): header_list = [headers.Name(name), headers.Length(len(file_data))] + list(header_list) max_length = self.remote_info.max_packet_length request = requests.Put() response = self._send_headers(request, header_list, max_length) yield response if not isinstance(response, responses.Continue): return # Send the file data. # The optimum size is the maximum packet length accepted by the # remote device minus three bytes for the header ID and length # minus three bytes for the request. optimum_size = max_length - 3 - 3 i = 0 while i < len(file_data): data = file_data[i:i + optimum_size] i += len(data) if i < len(file_data): request = requests.Put() request.add_header(headers.Body(data, False), max_length) self.socket.sendall(request.encode()) response = self.response_handler.decode(self.socket) yield response if not isinstance(response, responses.Continue): return else: request = requests.Put_Final() request.add_header(headers.End_Of_Body(data, False), max_length) self.socket.sendall(request.encode()) response = self.response_handler.decode(self.socket) yield response if not isinstance(response, responses.Success): return def get(self, name=None, header_list=(), callback=None): """get(self, name = None, header_list = (), callback = None) Requests the specified file from the server's current directory for the session. If a callback is specified, it will be called with each response obtained during the get operation. If no callback is specified, a value is returned which depends on the success of the operation. For an operation without callback, if successful, this method returns a tuple containing a list of responses received during the operation and the file data received; if unsuccessful, a single response object is returned. Additional headers can be sent by passing a sequence as the header_list keyword argument. These will be sent after the name information. """ returned_headers = [] for response in self._get(name, header_list): if isinstance(response, responses.Continue) or \ isinstance(response, responses.Success): # Report successful responses if using a callback or collect # them for later. if callback: callback(response) else: returned_headers += response.header_data elif callback: # Report failure responses using the callback, then return. callback(response) return else: # Return failure responses directly. return response # Finally, return the collected responses if not using a callback. if not callback: return self._collect_parts(returned_headers) def _get(self, name=None, header_list=()): header_list = list(header_list) if name is not None: header_list = [headers.Name(name)] + header_list max_length = self.remote_info.max_packet_length request = requests.Get() response = self._send_headers(request, header_list, max_length) yield response if not isinstance(response, responses.Continue) and \ not isinstance(response, responses.Success): return # Retrieve the file data. file_data = [] request = requests.Get_Final() while isinstance(response, responses.Continue): self.socket.sendall(request.encode()) response = self.response_handler.decode(self.socket) yield response def setpath(self, name="", create_dir=False, to_parent=False, header_list=()): """setpath(self, name = "", create_dir = False, to_parent = False, header_list = ()) Requests a change to the server's current directory for the session to the directory with the specified name, and returns the response. This method is also used to perform other actions, such as navigating to the parent directory (set to_parent to True) and creating a new directory (set create_dir to True). Additional headers can be sent by passing a sequence as the header_list keyword argument. These will be sent after the name information. """ header_list = list(header_list) if name is not None: header_list = [headers.Name(name)] + header_list max_length = self.remote_info.max_packet_length flags = 0 if not create_dir: flags |= requests.Set_Path.DontCreateDir if to_parent: flags |= requests.Set_Path.NavigateToParent request = requests.Set_Path((flags, 0)) response = self._send_headers(request, header_list, max_length) return response def delete(self, name, header_list=()): """delete(self, name, header_list = ()) Requests the deletion of the file with the specified name from the current directory and returns the server's response. """ header_list = [headers.Name(name)] + list(header_list) max_length = self.remote_info.max_packet_length request = requests.Put_Final() return self._send_headers(request, header_list, max_length) def abort(self, header_list=()): """abort(self, header_list = ()) Aborts the current session and returns the server's response. Specific headers can be sent by passing a sequence as the header_list keyword argument. Warning: This method should only be called to terminate a running operation and is therefore only useful for developers who want to reimplementing existing operations. """ header_list = list(header_list) max_length = self.remote_info.max_packet_length request = requests.Abort() response = self._send_headers(request, header_list, max_length) return response
class Client: """Client client = Client(address, port) Provides common functionality for OBEX clients, including methods for connecting to and disconnecting from a server, sending and receiving headers, and methods for higher level actions such as "get", "put", "set path" and "abort". The address used is a standard six-field bluetooth address, and the port should correspond to the port providing the service you wish to access. """ def __init__(self, address, port): self.address = address self.port = port self.max_packet_length = 0xFFFF self.obex_version = OBEX_Version() self.response_handler = responses.ResponseHandler() self.socket = None self._external_socket = False self.connection_id = None def _send_headers(self, request, header_list, max_length): """Convenience method to add headers to a request and send one or more requests with those headers.""" # Ensure that any Connection ID information is sent first. if self.connection_id: header_list.insert(0, self.connection_id) while header_list: if request.add_header(header_list[0], max_length): header_list.pop(0) else: self.socket.sendall(request.encode()) if isinstance(request, requests.Connect): response = self.response_handler.decode_connection(self.socket) else: response = self.response_handler.decode(self.socket) if not isinstance(response, responses.Continue): return response request.reset_headers() # Always send at least one request. if isinstance(request, requests.Get): # Turn the last Get request containing the headers into a # Get_Final request. request.code = requests.Get_Final.code self.socket.sendall(request.encode()) if isinstance(request, requests.Connect): response = self.response_handler.decode_connection(self.socket) else: response = self.response_handler.decode(self.socket) return response def _collect_parts(self, header_list): body = [] new_headers = [] for header in header_list: if isinstance(header, headers.Body): body.append(header.data) elif isinstance(header, headers.End_Of_Body): body.append(header.data) else: new_headers.append(header) return new_headers, "".join(body) def set_socket(self, socket): """set_socket(self, socket) Sets the socket to be used for communication to the socket specified. If socket is None, the client will create a socket for internal use when a connection is made. This is the default behaviour. This method must not be called once a connection has been opened. Only after an existing connection has been disconnected is it safe to set a new socket. """ self.socket = socket if socket is None: self._external_socket = False else: self._external_socket = True def connect(self, header_list=()): """connect(self, header_list = ()) Sends a connection message to the server and returns its response. Typically, the response is either Success or a subclass of FailureResponse. Specific headers can be sent by passing a sequence as the header_list keyword argument. """ if not self._external_socket: self.socket = Socket() self.socket.connect((self.address, self.port)) flags = 0 data = (self.obex_version.to_byte(), flags, self.max_packet_length) max_length = self.max_packet_length request = requests.Connect(data) header_list = list(header_list) response = self._send_headers(request, header_list, max_length) if isinstance(response, responses.ConnectSuccess): self.remote_info = response for header in response.header_data: if isinstance(header, headers.Connection_ID): # Recycle the Connection ID data to create a new header # for future use. self.connection_id = headers.Connection_ID(header.decode()) elif not self._external_socket: self.socket.close() return response def disconnect(self, header_list=()): """disconnect(self, header_list = ()) Sends a disconnection message to the server and returns its response. Typically, the response is either Success or a subclass of FailureResponse. Specific headers can be sent by passing a sequence as the header_list keyword argument. If the socket was not supplied using set_socket(), it will be closed. """ max_length = self.remote_info.max_packet_length request = requests.Disconnect() header_list = list(header_list) response = self._send_headers(request, header_list, max_length) if not self._external_socket: self.socket.close() self.connection_id = None return response def put(self, name, file_data, header_list=(), callback=None): """put(self, name, file_data, header_list = (), callback = None) Sends a file with the given name, containing the file_data specified, to the server for storage in the current directory for the session. If a callback is specified, it will be called with each response obtained during the put operation. If no callback is specified, the final response is returned when the put operation is complete or an error occurs. Additional headers can be sent by passing a sequence as the header_list keyword argument. These will be sent after the name and file length information associated with the name and file_data supplied. """ for response in self._put(name, file_data, header_list): if isinstance(response, responses.Continue) or isinstance(response, responses.Success): # Report successful responses if using a callback. if callback: callback(response) elif callback: # Report failure responses using the callback, then return. callback(response) return else: # Return failure responses directly. return response # Finally, return the last response if not using a callback. if not callback: return response def _put(self, name, file_data, header_list=()): header_list = [headers.Name(name), headers.Length(len(file_data)), headers.End_Of_Body(file_data)] + list( header_list ) max_length = self.remote_info.max_packet_length request = requests.Put() response = self._send_headers(request, header_list, max_length) yield response if not isinstance(response, responses.Continue): return # Send the file data. # The optimum size is the maximum packet length accepted by the # remote device minus three bytes for the header ID and length # minus three bytes for the request. optimum_size = max_length - 3 - 3 i = 0 while i < len(file_data): data = file_data[i : i + optimum_size] i += len(data) if i < len(file_data): request = requests.Put() request.add_header(headers.Body(data, False), max_length) self.socket.sendall(request.encode()) response = self.response_handler.decode(self.socket) yield response if not isinstance(response, responses.Continue): return else: request = requests.Put_Final() request.add_header(headers.End_Of_Body(data, False), max_length) self.socket.sendall(request.encode()) response = self.response_handler.decode(self.socket) yield response if not isinstance(response, responses.Success): return def get(self, name=None, header_list=(), callback=None): """get(self, name = None, header_list = (), callback = None) Requests the specified file from the server's current directory for the session. If a callback is specified, it will be called with each response obtained during the get operation. If no callback is specified, a value is returned which depends on the success of the operation. For an operation without callback, if successful, this method returns a tuple containing a list of responses received during the operation and the file data received; if unsuccessful, a single response object is returned. Additional headers can be sent by passing a sequence as the header_list keyword argument. These will be sent after the name information. """ returned_headers = [] for response in self._get(name, header_list): if isinstance(response, responses.Continue) or isinstance(response, responses.Success): # Report successful responses if using a callback or collect # them for later. if callback: callback(response) else: returned_headers += response.header_data elif callback: # Report failure responses using the callback, then return. callback(response) return else: # Return failure responses directly. return response # Finally, return the collected responses if not using a callback. if not callback: return self._collect_parts(returned_headers) def _get(self, name=None, header_list=()): header_list = list(header_list) if name is not None: header_list = [headers.Name(name)] + header_list max_length = self.remote_info.max_packet_length request = requests.Get() response = self._send_headers(request, header_list, max_length) yield response if not isinstance(response, responses.Continue) and not isinstance(response, responses.Success): return # Retrieve the file data. file_data = [] request = requests.Get_Final() while isinstance(response, responses.Continue): self.socket.sendall(request.encode()) response = self.response_handler.decode(self.socket) yield response def setpath(self, name="", create_dir=False, to_parent=False, header_list=()): """setpath(self, name = "", create_dir = False, to_parent = False, header_list = ()) Requests a change to the server's current directory for the session to the directory with the specified name, and returns the response. This method is also used to perform other actions, such as navigating to the parent directory (set to_parent to True) and creating a new directory (set create_dir to True). Additional headers can be sent by passing a sequence as the header_list keyword argument. These will be sent after the name information. """ header_list = list(header_list) if name is not None: header_list = [headers.Name(name)] + header_list max_length = self.remote_info.max_packet_length flags = 0 if not create_dir: flags |= requests.Set_Path.DontCreateDir if to_parent: flags |= requests.Set_Path.NavigateToParent request = requests.Set_Path((flags, 0)) response = self._send_headers(request, header_list, max_length) return response def delete(self, name, header_list=()): """delete(self, name, header_list = ()) Requests the deletion of the file with the specified name from the current directory and returns the server's response. """ header_list = [headers.Name(name)] + list(header_list) max_length = self.remote_info.max_packet_length request = requests.Put_Final() return self._send_headers(request, header_list, max_length) def abort(self, header_list=()): """abort(self, header_list = ()) Aborts the current session and returns the server's response. Specific headers can be sent by passing a sequence as the header_list keyword argument. Warning: This method should only be called to terminate a running operation and is therefore only useful for developers who want to reimplementing existing operations. """ header_list = list(header_list) max_length = self.remote_info.max_packet_length request = requests.Abort() response = self._send_headers(request, header_list, max_length) return response