def receive(self, command=None, prompts=None, answer=None): ''' Handles receiving of output from command ''' recv = BytesIO() handled = False self._matched_prompt = None while True: data = self._ssh_shell.recv(256) # when a channel stream is closed, received data will be empty if not data: break recv.write(data) offset = recv.tell() - 256 if recv.tell() > 256 else 0 recv.seek(offset) window = self._strip(recv.read()) if prompts and not handled: handled = self._handle_prompt(window, prompts, answer) if self._find_prompt(window): self._last_response = recv.getvalue() resp = self._strip(self._last_response) return self._sanitize(resp, command)
def receive(self, cmd=None): recv = BytesIO() handled = False while True: data = self.shell.recv(200) recv.write(data) recv.seek(recv.tell() - len(data)) window = self.strip(recv.read().decode('utf8')) if cmd: if 'prompt' in cmd and not handled: handled = self.handle_prompt(window, cmd) try: if self.find_prompt(window): resp = self.strip(recv.getvalue().decode('utf8')) if cmd: resp = self.sanitize(cmd, resp) return resp except ShellError: exc = get_exception() exc.command = cmd['command'] raise
def receive(self, command=None, prompts=None, answer=None, newline=True): ''' Handles receiving of output from command ''' recv = BytesIO() handled = False self._matched_prompt = None while True: data = self._ssh_shell.recv(256) # when a channel stream is closed, received data will be empty if not data: break recv.write(data) offset = recv.tell() - 256 if recv.tell() > 256 else 0 recv.seek(offset) window = self._strip(recv.read()) if prompts and not handled: handled = self._handle_prompt(window, prompts, answer, newline) elif prompts and handled: # check again even when handled, a sub-prompt could be # repeating (like in the case of a wrong enable password, etc) self._handle_prompt(window, prompts, answer, newline) if self._find_prompt(window): self._last_response = recv.getvalue() resp = self._strip(self._last_response) return self._sanitize(resp, command)
def receive(self, command=None, prompts=None, answer=None, newline=True, prompt_retry_check=False, check_all=False): ''' Handles receiving of output from command ''' recv = BytesIO() handled = False self._matched_prompt = None self._matched_cmd_prompt = None matched_prompt_window = window_count = 0 while True: data = self._ssh_shell.recv(256) # when a channel stream is closed, received data will be empty if not data: break recv.write(data) offset = recv.tell() - 256 if recv.tell() > 256 else 0 recv.seek(offset) window = self._strip(recv.read()) window_count += 1 if prompts and not handled: handled = self._handle_prompt(window, prompts, answer, newline, False, check_all) matched_prompt_window = window_count elif prompts and handled and prompt_retry_check and matched_prompt_window + 1 == window_count: # check again even when handled, if same prompt repeats in next window # (like in the case of a wrong enable password, etc) indicates # value of answer is wrong, report this as error. if self._handle_prompt(window, prompts, answer, newline, prompt_retry_check, check_all): raise AnsibleConnectionFailure( "For matched prompt '%s', answer is not valid" % self._matched_cmd_prompt) if self._find_prompt(window): self._last_response = recv.getvalue() resp = self._strip(self._last_response) return self._sanitize(resp, command)
def receive(self, command=None, prompts=None, answer=None, newline=True, prompt_retry_check=False): ''' Handles receiving of output from command ''' recv = BytesIO() handled = False self._matched_prompt = None self._matched_cmd_prompt = None matched_prompt_window = window_count = 0 while True: data = self._ssh_shell.recv(256) # when a channel stream is closed, received data will be empty if not data: break recv.write(data) offset = recv.tell() - 256 if recv.tell() > 256 else 0 recv.seek(offset) window = self._strip(recv.read()) window_count += 1 if prompts and not handled: handled = self._handle_prompt(window, prompts, answer, newline) matched_prompt_window = window_count elif prompts and handled and prompt_retry_check and matched_prompt_window + 1 == window_count: # check again even when handled, if same prompt repeats in next window # (like in the case of a wrong enable password, etc) indicates # value of answer is wrong, report this as error. if self._handle_prompt(window, prompts, answer, newline, prompt_retry_check): raise AnsibleConnectionFailure("For matched prompt '%s', answer is not valid" % self._matched_cmd_prompt) if self._find_prompt(window): self._last_response = recv.getvalue() resp = self._strip(self._last_response) return self._sanitize(resp, command)
def receive(self, command=None, prompts=None, answer=None): """Handles receiving of output from command""" recv = BytesIO() handled = False self._matched_prompt = None while True: data = self._shell.recv(256) recv.write(data) offset = recv.tell() - 256 if recv.tell() > 256 else 0 recv.seek(offset) window = self._strip(recv.read()) if prompts and not handled: handled = self._handle_prompt(window, prompts, answer) if self._find_prompt(window): self._last_response = recv.getvalue() resp = self._strip(self._last_response) return self._sanitize(resp, command)
def receive(self, command=None, prompts=None, answer=None, newline=True, prompt_retry_check=False, check_all=False): ''' Handles receiving of output from command ''' self._matched_prompt = None self._matched_cmd_prompt = None recv = BytesIO() handled = False command_prompt_matched = False matched_prompt_window = window_count = 0 command_timeout = self.get_option('persistent_command_timeout') self._validate_timeout_value(command_timeout, "persistent_command_timeout") buffer_read_timeout = self.get_option('persistent_buffer_read_timeout') self._validate_timeout_value(buffer_read_timeout, "persistent_buffer_read_timeout") while True: if command_prompt_matched: try: signal.signal(signal.SIGALRM, self._handle_buffer_read_timeout) signal.setitimer(signal.ITIMER_REAL, buffer_read_timeout) data = self._ssh_shell.recv(256) signal.alarm(0) # if data is still received on channel it indicates the prompt string # is wrongly matched in between response chunks, continue to read # remaining response. command_prompt_matched = False # restart command_timeout timer signal.signal(signal.SIGALRM, self._handle_command_timeout) signal.alarm(command_timeout) except AnsibleCmdRespRecv: return self._command_response else: data = self._ssh_shell.recv(256) # when a channel stream is closed, received data will be empty if not data: break recv.write(data) offset = recv.tell() - 256 if recv.tell() > 256 else 0 recv.seek(offset) window = self._strip(recv.read()) window_count += 1 if prompts and not handled: handled = self._handle_prompt(window, prompts, answer, newline, False, check_all) matched_prompt_window = window_count elif prompts and handled and prompt_retry_check and matched_prompt_window + 1 == window_count: # check again even when handled, if same prompt repeats in next window # (like in the case of a wrong enable password, etc) indicates # value of answer is wrong, report this as error. if self._handle_prompt(window, prompts, answer, newline, prompt_retry_check, check_all): raise AnsibleConnectionFailure( "For matched prompt '%s', answer is not valid" % self._matched_cmd_prompt) if self._find_prompt(window): self._last_response = recv.getvalue() resp = self._strip(self._last_response) self._command_response = self._sanitize(resp, command) if buffer_read_timeout == 0.0: return self._command_response else: command_prompt_matched = True