migrate paho.mqtt CallbackAPIVersion to VERSION2 (#225)
This commit is contained in:
Stefan Allius
GitHub
569
ha_addons/ha_addon/rootfs/home/proxy/gen3/talent.py
Normal file
569
ha_addons/ha_addon/rootfs/home/proxy/gen3/talent.py
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@@ -0,0 +1,569 @@
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import struct
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import logging
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from zoneinfo import ZoneInfo
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from datetime import datetime
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from tzlocal import get_localzone
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from async_ifc import AsyncIfc
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from messages import Message, State
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from modbus import Modbus
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from config import Config
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from gen3.infos_g3 import InfosG3
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from infos import Register
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logger = logging.getLogger('msg')
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class Control:
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def __init__(self, ctrl: int):
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self.ctrl = ctrl
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def __int__(self) -> int:
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return self.ctrl
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def is_ind(self) -> bool:
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return (self.ctrl == 0x91)
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def is_req(self) -> bool:
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return (self.ctrl == 0x70)
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def is_resp(self) -> bool:
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return (self.ctrl == 0x99)
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class Talent(Message):
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TXT_UNKNOWN_CTRL = 'Unknown Ctrl'
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def __init__(self, addr, ifc: "AsyncIfc", server_side: bool,
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client_mode: bool = False, id_str=b''):
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super().__init__('G3', ifc, server_side, self.send_modbus_cb,
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mb_timeout=15)
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ifc.rx_set_cb(self.read)
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ifc.prot_set_timeout_cb(self._timeout)
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ifc.prot_set_init_new_client_conn_cb(self._init_new_client_conn)
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ifc.prot_set_update_header_cb(self._update_header)
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self.addr = addr
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self.conn_no = ifc.get_conn_no()
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self.await_conn_resp_cnt = 0
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self.id_str = id_str
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self.contact_name = b''
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self.contact_mail = b''
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self.ts_offset = 0 # time offset between tsun cloud and local
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self.db = InfosG3()
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self.switch = {
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0x00: self.msg_contact_info,
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0x13: self.msg_ota_update,
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0x22: self.msg_get_time,
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0x99: self.msg_heartbeat,
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0x71: self.msg_collector_data,
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# 0x76:
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0x77: self.msg_modbus,
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# 0x78:
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0x87: self.msg_modbus2,
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0x04: self.msg_inverter_data,
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}
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self.log_lvl = {
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0x00: logging.INFO,
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0x13: logging.INFO,
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0x22: logging.INFO,
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0x99: logging.INFO,
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0x71: logging.INFO,
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# 0x76:
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0x77: self.get_modbus_log_lvl,
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# 0x78:
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0x87: self.get_modbus_log_lvl,
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0x04: logging.INFO,
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}
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'''
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Our puplic methods
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'''
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def close(self) -> None:
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logging.debug('Talent.close()')
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# we have references to methods of this class in self.switch
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# so we have to erase self.switch, otherwise this instance can't be
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# deallocated by the garbage collector ==> we get a memory leak
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self.switch.clear()
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self.log_lvl.clear()
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super().close()
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def __set_serial_no(self, serial_no: str):
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if self.unique_id == serial_no:
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logger.debug(f'SerialNo: {serial_no}')
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else:
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inverters = Config.get('inverters')
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# logger.debug(f'Inverters: {inverters}')
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if serial_no in inverters:
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inv = inverters[serial_no]
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self.node_id = inv['node_id']
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self.sug_area = inv['suggested_area']
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self.modbus_polling = inv['modbus_polling']
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logger.debug(f'SerialNo {serial_no} allowed! area:{self.sug_area}') # noqa: E501
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self.db.set_pv_module_details(inv)
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if self.mb:
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self.mb.set_node_id(self.node_id)
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else:
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self.node_id = ''
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self.sug_area = ''
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if 'allow_all' not in inverters or not inverters['allow_all']:
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self.inc_counter('Unknown_SNR')
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self.unique_id = None
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logger.warning(f'ignore message from unknow inverter! (SerialNo: {serial_no})') # noqa: E501
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return
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logger.debug(f'SerialNo {serial_no} not known but accepted!')
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self.unique_id = serial_no
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self.db.set_db_def_value(Register.COLLECTOR_SNR, serial_no)
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def read(self) -> float:
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'''process all received messages in the _recv_buffer'''
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self._read()
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while True:
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if not self.header_valid:
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self.__parse_header(self.ifc.rx_peek(), self.ifc.rx_len())
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if self.header_valid and \
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self.ifc.rx_len() >= (self.header_len + self.data_len):
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if self.state == State.init:
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self.state = State.received # received 1st package
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log_lvl = self.log_lvl.get(self.msg_id, logging.WARNING)
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if callable(log_lvl):
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log_lvl = log_lvl()
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self.ifc.rx_log(log_lvl, f'Received from {self.addr}:'
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f' BufLen: {self.ifc.rx_len()}'
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f' HdrLen: {self.header_len}'
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f' DtaLen: {self.data_len}')
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self.__set_serial_no(self.id_str.decode("utf-8"))
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self.__dispatch_msg()
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self.__flush_recv_msg()
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else:
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return 0 # don not wait before sending a response
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def forward(self) -> None:
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'''add the actual receive msg to the forwarding queue'''
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tsun = Config.get('tsun')
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if tsun['enabled']:
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buflen = self.header_len+self.data_len
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buffer = self.ifc.rx_peek(buflen)
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self.ifc.fwd_add(buffer)
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self.ifc.fwd_log(logging.DEBUG, 'Store for forwarding:')
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fnc = self.switch.get(self.msg_id, self.msg_unknown)
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logger.info(self.__flow_str(self.server_side, 'forwrd') +
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f' Ctl: {int(self.ctrl):#02x} Msg: {fnc.__name__!r}')
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def send_modbus_cb(self, modbus_pdu: bytearray, log_lvl: int, state: str):
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if self.state != State.up:
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logger.warning(f'[{self.node_id}] ignore MODBUS cmd,'
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' cause the state is not UP anymore')
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return
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self.__build_header(0x70, 0x77)
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self.ifc.tx_add(b'\x00\x01\xa3\x28') # magic ?
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self.ifc.tx_add(struct.pack('!B', len(modbus_pdu)))
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self.ifc.tx_add(modbus_pdu)
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self.__finish_send_msg()
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self.ifc.tx_log(log_lvl, f'Send Modbus {state}:{self.addr}:')
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self.ifc.tx_flush()
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def mb_timout_cb(self, exp_cnt):
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self.mb_timer.start(self.mb_timeout)
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if 2 == (exp_cnt % 30):
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# logging.info("Regular Modbus Status request")
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self._send_modbus_cmd(Modbus.READ_REGS, 0x2000, 96, logging.DEBUG)
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else:
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self._send_modbus_cmd(Modbus.READ_REGS, 0x3000, 48, logging.DEBUG)
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def _init_new_client_conn(self) -> bool:
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contact_name = self.contact_name
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contact_mail = self.contact_mail
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logger.info(f'name: {contact_name} mail: {contact_mail}')
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self.msg_id = 0
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self.await_conn_resp_cnt += 1
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self.__build_header(0x91)
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self.ifc.tx_add(struct.pack(f'!{len(contact_name)+1}p'
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f'{len(contact_mail)+1}p',
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contact_name, contact_mail))
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self.__finish_send_msg()
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return True
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'''
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Our private methods
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'''
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def __flow_str(self, server_side: bool, type: str): # noqa: F821
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switch = {
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'rx': ' <',
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'tx': ' >',
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'forwrd': '<< ',
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'drop': ' xx',
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'rxS': '> ',
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'txS': '< ',
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'forwrdS': ' >>',
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'dropS': 'xx ',
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}
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if server_side:
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type += 'S'
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return switch.get(type, '???')
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def _timestamp(self): # pragma: no cover
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'''returns timestamp fo the inverter as localtime
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since 1.1.1970 in msec'''
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# convert localtime in epoche
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ts = (datetime.now() - datetime(1970, 1, 1)).total_seconds()
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return round(ts*1000)
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def _utcfromts(self, ts: float):
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'''converts inverter timestamp into unix time (epoche)'''
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dt = datetime.fromtimestamp(ts/1000, tz=ZoneInfo("UTC")). \
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replace(tzinfo=get_localzone())
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return dt.timestamp()
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def _utc(self): # pragma: no cover
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'''returns unix time (epoche)'''
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return datetime.now().timestamp()
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def _update_header(self, _forward_buffer):
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'''update header for message before forwarding,
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add time offset to timestamp'''
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_len = len(_forward_buffer)
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ofs = 0
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while ofs < _len:
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result = struct.unpack_from('!lB', _forward_buffer, 0)
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msg_len = 4 + result[0]
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id_len = result[1] # len of variable id string
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if _len < 2*id_len + 21:
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return
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result = struct.unpack_from('!B', _forward_buffer, id_len+6)
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msg_code = result[0]
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if msg_code == 0x71 or msg_code == 0x04:
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result = struct.unpack_from('!q', _forward_buffer, 13+2*id_len)
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ts = result[0] + self.ts_offset
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logger.debug(f'offset: {self.ts_offset:08x}'
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f' proxy-time: {ts:08x}')
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struct.pack_into('!q', _forward_buffer, 13+2*id_len, ts)
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ofs += msg_len
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# check if there is a complete header in the buffer, parse it
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# and set
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# self.header_len
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# self.data_len
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# self.id_str
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# self.ctrl
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# self.msg_id
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#
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# if the header is incomplete, than self.header_len is still 0
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#
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def __parse_header(self, buf: bytes, buf_len: int) -> None:
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if (buf_len < 5): # enough bytes to read len and id_len?
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return
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result = struct.unpack_from('!lB', buf, 0)
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msg_len = result[0] # len of complete message
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id_len = result[1] # len of variable id string
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if id_len > 17:
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logger.warning(f'len of ID string must == 16 but is {id_len}')
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self.inc_counter('Invalid_Msg_Format')
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# erase broken recv buffer
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self.ifc.rx_clear()
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return
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hdr_len = 5+id_len+2
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if (buf_len < hdr_len): # enough bytes for complete header?
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return
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result = struct.unpack_from(f'!{id_len+1}pBB', buf, 4)
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# store parsed header values in the class
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self.id_str = result[0]
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self.ctrl = Control(result[1])
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self.msg_id = result[2]
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self.data_len = msg_len-id_len-3
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self.header_len = hdr_len
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self.header_valid = True
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def __build_header(self, ctrl, msg_id=None) -> None:
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if not msg_id:
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msg_id = self.msg_id
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self.send_msg_ofs = self.ifc.tx_len()
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self.ifc.tx_add(struct.pack(f'!l{len(self.id_str)+1}pBB',
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0, self.id_str, ctrl, msg_id))
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fnc = self.switch.get(msg_id, self.msg_unknown)
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logger.info(self.__flow_str(self.server_side, 'tx') +
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f' Ctl: {int(ctrl):#02x} Msg: {fnc.__name__!r}')
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def __finish_send_msg(self) -> None:
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_len = self.ifc.tx_len() - self.send_msg_ofs
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struct.pack_into('!l', self.ifc.tx_peek(), self.send_msg_ofs,
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_len-4)
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def __dispatch_msg(self) -> None:
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fnc = self.switch.get(self.msg_id, self.msg_unknown)
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if self.unique_id:
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logger.info(self.__flow_str(self.server_side, 'rx') +
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f' Ctl: {int(self.ctrl):#02x} ({self.state}) '
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f'Msg: {fnc.__name__!r}')
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fnc()
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else:
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logger.info(self.__flow_str(self.server_side, 'drop') +
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f' Ctl: {int(self.ctrl):#02x} Msg: {fnc.__name__!r}')
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def __flush_recv_msg(self) -> None:
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self.ifc.rx_get(self.header_len+self.data_len)
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self.header_valid = False
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'''
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Message handler methods
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'''
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def msg_contact_info(self):
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if self.ctrl.is_ind():
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if self.server_side and self.__process_contact_info():
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self.__build_header(0x91)
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self.ifc.tx_add(b'\x01')
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self.__finish_send_msg()
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# don't forward this contact info here, we will build one
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# when the remote connection is established
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elif self.await_conn_resp_cnt > 0:
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self.await_conn_resp_cnt -= 1
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else:
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self.forward()
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else:
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logger.warning(self.TXT_UNKNOWN_CTRL)
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self.inc_counter('Unknown_Ctrl')
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self.forward()
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def __process_contact_info(self) -> bool:
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buf = self.ifc.rx_peek()
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result = struct.unpack_from('!B', buf, self.header_len)
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name_len = result[0]
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if self.data_len == 1: # this is a response withone status byte
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return False
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if self.data_len >= name_len+2:
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result = struct.unpack_from(f'!{name_len+1}pB', buf,
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self.header_len)
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self.contact_name = result[0]
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mail_len = result[1]
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logger.info(f'name: {self.contact_name}')
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result = struct.unpack_from(f'!{mail_len+1}p', buf,
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self.header_len+name_len+1)
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self.contact_mail = result[0]
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logger.info(f'mail: {self.contact_mail}')
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return True
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def msg_get_time(self):
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if self.ctrl.is_ind():
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if self.data_len == 0:
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if self.state == State.up:
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self.state = State.pend # block MODBUS cmds
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ts = self._timestamp()
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logger.debug(f'time: {ts:08x}')
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self.__build_header(0x91)
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self.ifc.tx_add(struct.pack('!q', ts))
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self.__finish_send_msg()
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elif self.data_len >= 8:
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ts = self._timestamp()
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result = struct.unpack_from('!q', self.ifc.rx_peek(),
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self.header_len)
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self.ts_offset = result[0]-ts
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if self.ifc.remote.stream:
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self.ifc.remote.stream.ts_offset = self.ts_offset
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logger.debug(f'tsun-time: {int(result[0]):08x}'
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f' proxy-time: {ts:08x}'
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f' offset: {self.ts_offset}')
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return # ignore received response
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else:
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logger.warning(self.TXT_UNKNOWN_CTRL)
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self.inc_counter('Unknown_Ctrl')
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self.forward()
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def msg_heartbeat(self):
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if self.ctrl.is_ind():
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if self.data_len == 9:
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self.state = State.up # allow MODBUS cmds
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if (self.modbus_polling):
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self.mb_timer.start(self.mb_first_timeout)
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self.db.set_db_def_value(Register.POLLING_INTERVAL,
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self.mb_timeout)
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self.__build_header(0x99)
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self.ifc.tx_add(b'\x02')
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self.__finish_send_msg()
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result = struct.unpack_from('!Bq', self.ifc.rx_peek(),
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self.header_len)
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resp_code = result[0]
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ts = result[1]+self.ts_offset
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logger.debug(f'inv-time: {int(result[1]):08x}'
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f' tsun-time: {ts:08x}'
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f' offset: {self.ts_offset}')
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struct.pack_into('!Bq', self.ifc.rx_peek(),
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self.header_len, resp_code, ts)
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elif self.ctrl.is_resp():
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result = struct.unpack_from('!B', self.ifc.rx_peek(),
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self.header_len)
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resp_code = result[0]
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logging.debug(f'Heartbeat-RespCode: {resp_code}')
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return
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else:
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logger.warning(self.TXT_UNKNOWN_CTRL)
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self.inc_counter('Unknown_Ctrl')
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self.forward()
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def parse_msg_header(self):
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result = struct.unpack_from('!lB', self.ifc.rx_peek(),
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self.header_len)
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data_id = result[0] # len of complete message
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id_len = result[1] # len of variable id string
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logger.debug(f'Data_ID: 0x{data_id:08x} id_len: {id_len}')
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msg_hdr_len = 5+id_len+9
|
||||
|
||||
result = struct.unpack_from(f'!{id_len+1}pBq', self.ifc.rx_peek(),
|
||||
self.header_len + 4)
|
||||
|
||||
timestamp = result[2]
|
||||
logger.debug(f'ID: {result[0]} B: {result[1]}')
|
||||
logger.debug(f'time: {timestamp:08x}')
|
||||
# logger.info(f'time: {datetime.utcfromtimestamp(result[2]).strftime(
|
||||
# "%Y-%m-%d %H:%M:%S")}')
|
||||
return msg_hdr_len, timestamp
|
||||
|
||||
def msg_collector_data(self):
|
||||
if self.ctrl.is_ind():
|
||||
self.__build_header(0x99)
|
||||
self.ifc.tx_add(b'\x01')
|
||||
self.__finish_send_msg()
|
||||
self.__process_data()
|
||||
|
||||
elif self.ctrl.is_resp():
|
||||
return # ignore received response
|
||||
else:
|
||||
logger.warning(self.TXT_UNKNOWN_CTRL)
|
||||
self.inc_counter('Unknown_Ctrl')
|
||||
|
||||
self.forward()
|
||||
|
||||
def msg_inverter_data(self):
|
||||
if self.ctrl.is_ind():
|
||||
self.__build_header(0x99)
|
||||
self.ifc.tx_add(b'\x01')
|
||||
self.__finish_send_msg()
|
||||
self.__process_data()
|
||||
self.state = State.up # allow MODBUS cmds
|
||||
if (self.modbus_polling):
|
||||
self.mb_timer.start(self.mb_first_timeout)
|
||||
self.db.set_db_def_value(Register.POLLING_INTERVAL,
|
||||
self.mb_timeout)
|
||||
|
||||
elif self.ctrl.is_resp():
|
||||
return # ignore received response
|
||||
else:
|
||||
logger.warning(self.TXT_UNKNOWN_CTRL)
|
||||
self.inc_counter('Unknown_Ctrl')
|
||||
|
||||
self.forward()
|
||||
|
||||
def __process_data(self):
|
||||
msg_hdr_len, ts = self.parse_msg_header()
|
||||
|
||||
for key, update in self.db.parse(self.ifc.rx_peek(), self.header_len
|
||||
+ msg_hdr_len, self.node_id):
|
||||
if update:
|
||||
self._set_mqtt_timestamp(key, self._utcfromts(ts))
|
||||
self.new_data[key] = True
|
||||
|
||||
def msg_ota_update(self):
|
||||
if self.ctrl.is_req():
|
||||
self.inc_counter('OTA_Start_Msg')
|
||||
elif self.ctrl.is_ind():
|
||||
pass # Ok, nothing to do
|
||||
else:
|
||||
logger.warning(self.TXT_UNKNOWN_CTRL)
|
||||
self.inc_counter('Unknown_Ctrl')
|
||||
self.forward()
|
||||
|
||||
def parse_modbus_header(self):
|
||||
|
||||
msg_hdr_len = 5
|
||||
|
||||
result = struct.unpack_from('!lBB', self.ifc.rx_peek(),
|
||||
self.header_len)
|
||||
modbus_len = result[1]
|
||||
return msg_hdr_len, modbus_len
|
||||
|
||||
def parse_modbus_header2(self):
|
||||
|
||||
msg_hdr_len = 6
|
||||
|
||||
result = struct.unpack_from('!lBBB', self.ifc.rx_peek(),
|
||||
self.header_len)
|
||||
modbus_len = result[2]
|
||||
return msg_hdr_len, modbus_len
|
||||
|
||||
def get_modbus_log_lvl(self) -> int:
|
||||
if self.ctrl.is_req():
|
||||
return logging.INFO
|
||||
elif self.ctrl.is_ind() and self.server_side:
|
||||
return self.mb.last_log_lvl
|
||||
return logging.WARNING
|
||||
|
||||
def msg_modbus(self):
|
||||
hdr_len, _ = self.parse_modbus_header()
|
||||
self.__msg_modbus(hdr_len)
|
||||
|
||||
def msg_modbus2(self):
|
||||
hdr_len, _ = self.parse_modbus_header2()
|
||||
self.__msg_modbus(hdr_len)
|
||||
|
||||
def __msg_modbus(self, hdr_len):
|
||||
data = self.ifc.rx_peek()[self.header_len:
|
||||
self.header_len+self.data_len]
|
||||
|
||||
if self.ctrl.is_req():
|
||||
rstream = self.ifc.remote.stream
|
||||
if rstream.mb.recv_req(data[hdr_len:], rstream.msg_forward):
|
||||
self.inc_counter('Modbus_Command')
|
||||
else:
|
||||
self.inc_counter('Invalid_Msg_Format')
|
||||
elif self.ctrl.is_ind():
|
||||
self.modbus_elms = 0
|
||||
# logger.debug(f'Modbus Ind MsgLen: {modbus_len}')
|
||||
if not self.server_side:
|
||||
logger.warning('Unknown Message')
|
||||
self.inc_counter('Unknown_Msg')
|
||||
return
|
||||
|
||||
for key, update, _ in self.mb.recv_resp(self.db, data[
|
||||
hdr_len:]):
|
||||
if update:
|
||||
self._set_mqtt_timestamp(key, self._utc())
|
||||
self.new_data[key] = True
|
||||
self.modbus_elms += 1 # count for unit tests
|
||||
else:
|
||||
logger.warning(self.TXT_UNKNOWN_CTRL)
|
||||
self.inc_counter('Unknown_Ctrl')
|
||||
self.forward()
|
||||
|
||||
def msg_forward(self):
|
||||
self.forward()
|
||||
|
||||
def msg_unknown(self):
|
||||
logger.warning(f"Unknow Msg: ID:{self.msg_id}")
|
||||
self.inc_counter('Unknown_Msg')
|
||||
self.forward()
|
||||
Reference in New Issue
Block a user