async def adapters(request: Request, refresh: bool = False):
global last_update
time_upd = True if int(time()) - last_update > 20 else False
log_request(request, f'adapters Update based on Time {time_upd}, Update based on query param {refresh}')
# if data has been refreshed in the last 20 seconds trust it is valid
# prevents multiple simul calls to get_adapters after mdns_refresh and
# subsequent API calls from all other ConsolePi on the network
if refresh or int(time()) - last_update > 20:
config.ser2net_conf = config.get_ser2net()
local.adapters = local.build_adapter_dict(refresh=True)
last_update = int(time())
return {'adapters': local.adapters}
def do_ser2net_line(self,
from_name: str = None,
to_name: str = None,
baud: int = None,
dbits: int = None,
parity: str = None,
flow: str = None,
sbits: int = None):
'''Process Adapter Configuration Changes in ser2net.conf.
Keyword Arguments:
from_name {str} -- The Adapters existing name/alias (default: {None})
to_name {str} -- The Adapters new name/alias (default: {None})
baud {int} -- Adapter baud (default: {self.baud})
dbits {int} -- Adapter databits (default: {self.data_bits})
parity {str} -- Adapter Parity (default: {self.parity})
flow {str} -- Adapter flow (default: {self.flow})
sbits {int} -- Adapter stop bits (default: {self.sbits})
Returns:
{str|None} -- Returns error text if an error occurs or None if no issues.
'''
# don't add the new entry to ser2net if one already exists for the alias
if from_name != to_name and config.ser2net_conf.get(f"/dev/{to_name}"):
log.info(
f"ser2net: {to_name} already mapped to port {config.ser2net_conf[f'/dev/{to_name}'].get('port')}",
show=True)
return
ser2net_parity = {'n': 'NONE', 'e': 'EVEN', 'o': 'ODD'}
ser2net_flow = {'n': '', 'x': ' XONXOFF', 'h': ' RTSCTS'}
baud = self.baud if not baud else baud
dbits = self.data_bits if not dbits else dbits
parity = self.parity if not parity else parity
flow = self.flow if not flow else flow
sbits = self.sbits if not sbits else sbits
log_ptr = ''
cur_line = config.ser2net_conf.get(f'/dev/{from_name}', {}).get('line')
if cur_line and '/dev/ttyUSB' not in cur_line and '/dev/ttyACM' not in cur_line:
new_entry = False
next_port = next_port = cur_line.split(':')[0] # Renaming existing
log_ptr = config.ser2net_conf[f'/dev/{from_name}'].get('log_ptr')
if not log_ptr:
log_ptr = ''
else:
new_entry = True
if utils.valid_file(self.ser2net_file):
ports = [
a['port'] for a in config.ser2net_conf.values()
if 7000 < a.get('port', 0) <= 7999
]
next_port = 7001 if not ports else int(max(ports)) + 1
else:
next_port = 7001
error = utils.do_shell_cmd(
f'sudo cp {self.ser2net_file} /etc/', handle_errors=False)
if error:
log.error(
f'Rename Menu Error while attempting to cp ser2net.conf from src {error}'
)
return error # error added to display in calling method
ser2net_line = (
'{telnet_port}:telnet:0:/dev/{alias}:{baud} {dbits}DATABITS {parity} '
'{sbits}STOPBIT {flow} banner {log_ptr}'.format(
telnet_port=next_port,
alias=to_name,
baud=baud,
dbits=dbits,
sbits=sbits,
parity=ser2net_parity[parity],
flow=ser2net_flow[flow],
log_ptr=log_ptr))
# -- // Append to ser2net.conf \\ --
if new_entry:
error = utils.append_to_file(self.ser2net_file, ser2net_line)
# -- // Rename Existing Definition in ser2net.conf \\ --
# -- for devices with existing definitions cur_line is the existing line
else:
ser2net_line = ser2net_line.strip().replace('/', r'\/')
cur_line = cur_line.replace('/', r'\/')
cmd = "sudo sed -i 's/^{}$/{}/' {}".format(
cur_line, ser2net_line, self.ser2net_file)
error = utils.do_shell_cmd(cmd, shell=True)
if not error:
config.ser2net_conf = config.get_ser2net()
else:
return error