X-Git-Url: http://average.org/gitweb/?a=blobdiff_plain;f=gps303%2Fgps303proto.py;h=2d777d94fa5bfbec0b4c4b15192a0a56f9427954;hb=f075dbd6eea0e7326d68fd15a103d668baf67c10;hp=c96a6dc945312ef4b0f9df46239afa06c73f6370;hpb=66f552e63fb7568c6cd30e3c3c0b2735acadc418;p=loctrkd.git diff --git a/gps303/gps303proto.py b/gps303/gps303proto.py index c96a6dc..2d777d9 100755 --- a/gps303/gps303proto.py +++ b/gps303/gps303proto.py @@ -91,6 +91,16 @@ def intx(x: Union[str, int]) -> int: return x +def boolx(x: Union[str, bool]) -> bool: + if isinstance(x, str): + if x.upper() in ("ON", "TRUE", "1"): + return True + if x.upper() in ("OFF", "FALSE", "0"): + return False + raise ValueError(str(x) + " could not be parsed as a Boolean") + return x + + def hhmm(x: str) -> str: """Check for the string that represents hours and minutes""" if not isinstance(x, str) or len(x) != 4: @@ -102,17 +112,55 @@ def hhmm(x: str) -> str: return x +def hhmmhhmm(x: str) -> str: + """Check for the string that represents hours and minutes twice""" + if not isinstance(x, str) or len(x) != 8: + raise ValueError(str(x) + " is not an eight-character string") + return hhmm(x[:4]) + hhmm(x[4:]) + + def l3str(x: Union[str, List[str]]) -> List[str]: if isinstance(x, str): lx = x.split(",") + else: + lx = x if len(lx) != 3 or not all(isinstance(el, str) for el in x): raise ValueError(str(lx) + " is not a list of three strings") return lx +def l3alarms(x: Union[str, List[Tuple[int, str]]]) -> List[Tuple[int, str]]: + def alrmspec(sub: str) -> Tuple[int, str]: + if len(sub) != 7: + raise ValueError(sub + " does not represent day and time") + return ( + { + "MON": 1, + "TUE": 2, + "WED": 3, + "THU": 4, + "FRI": 5, + "SAT": 6, + "SUN": 7, + }[sub[:3].upper()], + sub[3:], + ) + + if isinstance(x, str): + lx = [alrmspec(sub) for sub in x.split(",")] + else: + lx = x + lx.extend([(0, "0000") for _ in range(3 - len(lx))]) + if len(lx) != 3 or any(d < 0 or d > 7 for d, tm in lx): + raise ValueError(str(lx) + " is a wrong alarms specification") + return [(d, hhmm(tm)) for d, tm in lx] + + def l3int(x: Union[str, List[int]]) -> List[int]: if isinstance(x, str): lx = [int(el) for el in x.split(",")] + else: + lx = x if len(lx) != 3 or not all(isinstance(el, int) for el in lx): raise ValueError(str(lx) + " is not a list of three integers") return lx @@ -265,8 +313,8 @@ class LOGIN(GPS303Pkt): # Default response for ACK, can also respond with STOP_UPLOAD def in_decode(self, length: int, payload: bytes) -> None: - self.imei = payload[:-1].hex() - self.ver = unpack("B", payload[-1:])[0] + self.imei = payload[:16].hex() + self.ver = payload[16] class SUPERVISION(GPS303Pkt): @@ -412,17 +460,28 @@ class PROHIBIT_LBS(GPS303Pkt): class GPS_LBS_SWITCH_TIMES(GPS303Pkt): PROTO = 0x34 - # Data is in packed decimal - # 00/01 - GPS on/off - # 00/01 - Don't set / Set upload period - # HHMMHHMM - Upload period - # 00/01 - LBS on/off - # 00/01 - Don't set / Set time of boot - # HHMM - Time of boot - # 00/01 - Don't set / Set time of shutdown - # HHMM - Time of shutdown + OUT_KWARGS = ( + ("gps_off", boolx, False), # Clarify the meaning of 0/1 + ("gps_interval_set", boolx, False), + ("gps_interval", hhmmhhmm, "00000000"), + ("lbs_off", boolx, False), # Clarify the meaning of 0/1 + ("boot_time_set", boolx, False), + ("boot_time", hhmm, "0000"), + ("shut_time_set", boolx, False), + ("shut_time", hhmm, "0000"), + ) + def out_encode(self) -> bytes: - return b"" # TODO + return ( + pack("B", self.gps_off) + + pack("B", self.gps_interval_set) + + bytes.fromhex(self.gps_interval) + + pack("B", self.lbs_off) + + pack("B", self.boot_time_set) + + bytes.fromhex(self.boot_time) + + pack("B", self.shut_time_set) + + bytes.fromhex(self.shut_time) + ) class _SET_PHONE(GPS303Pkt): @@ -513,12 +572,15 @@ class DEVICE(GPS303Pkt): class ALARM_CLOCK(GPS303Pkt): PROTO = 0x50 + OUT_KWARGS: Tuple[ + Tuple[str, Callable[[Any], Any], List[Tuple[int, str]]], ... + ] = ( + ("alarms", l3alarms, []), + ) def out_encode(self) -> bytes: - # TODO implement parsing kwargs - alarms = ((0, "0000"), (0, "0000"), (0, "0000")) return b"".join( - pack("B", day) + bytes.fromhex(tm) for day, tm in alarms + pack("B", day) + bytes.fromhex(tm) for day, tm in self.alarms ) @@ -701,7 +763,7 @@ def parse_message(packet: bytes, is_incoming: bool = True) -> GPS303Pkt: length, proto = unpack("BB", packet[:2]) payload = packet[2:] if proto not in CLASSES: - cause: Union[DecodeError, ValueError] = ValueError( + cause: Union[DecodeError, ValueError, IndexError] = ValueError( f"Proto {proto} is unknown" ) else: @@ -710,7 +772,7 @@ def parse_message(packet: bytes, is_incoming: bool = True) -> GPS303Pkt: return CLASSES[proto].In(length, payload) else: return CLASSES[proto].Out(length, payload) - except DecodeError as e: + except (DecodeError, ValueError, IndexError) as e: cause = e if is_incoming: retobj = UNKNOWN.In(length, payload)