103 строки
3.2 KiB
Python
Исполняемый файл
103 строки
3.2 KiB
Python
Исполняемый файл
import asyncio
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import logging
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import time
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from .app import App, IAppCallInterceptor, AppException
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from .call import Call
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from .dmrproto import DMRPPacketData
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class ParrotApp(App, IAppCallInterceptor):
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"""
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Simple parrot application
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"""
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def __init__(self, parrot_id: int = 9990, repeat_delay: int = 5,
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enable_unit: bool = True, enable_group: bool = True) -> None:
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# settings
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self.parrot_id: int = parrot_id
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self.repeat_delay: int = repeat_delay
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self.enable_unit: bool = enable_unit
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self.enable_group: bool = enable_group
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super().__init__()
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# internal state
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self._mycalls: set[int] = set()
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self._records: dict[int, list[DMRPPacketData]] = dict()
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@property
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def name(self) -> str:
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return self.get_name()
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async def repeat(self, packets: list[DMRPPacketData]) -> None:
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if self.dispatcher is None:
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raise AppException(
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"send_packets called before dispatcher had been set")
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if len(packets) == 0:
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logging.debug(f"{self.name}: nothing to repeat, 0 packets in call")
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return
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await asyncio.sleep(self.repeat_delay)
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logging.info(f"{self.name}: repeating call")
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stream_id = packets[0].stream_id
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self._mycalls.add(stream_id)
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start_time = time.monotonic()
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for i, p in enumerate(packets):
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self.dispatcher.inject_packet(p)
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if (delay := start_time + (i + 1) * 0.06 - time.monotonic()) > 0:
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await asyncio.sleep(delay)
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self._mycalls.discard(stream_id)
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def record(self, call: Call, p: DMRPPacketData) -> None:
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if p.src_id == self.parrot_id or p.dst_id != self.parrot_id:
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return
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if (p.call_type == DMRPPacketData.CallType.UNIT
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and not self.enable_unit):
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logging.debug(f"{self.name}: unit calls disabled")
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return
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if (p.call_type == DMRPPacketData.CallType.GROUP
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and not self.enable_group):
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logging.debug(f"{self.name}: group calls disabled")
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return
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if p.stream_id in self._mycalls:
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logging.debug(f"{self.name}: skipping my own call")
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return
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if p.stream_id not in self._records:
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logging.info(f"{self.name}: recording {call.call_id}")
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self._records[p.stream_id] = []
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ans_p = p.copy()
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# invert source and dest for unit call
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if p.call_type == DMRPPacketData.CallType.UNIT:
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ans_p.src_id = self.parrot_id
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ans_p.dst_id = p.src_id
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ans_p.stream_id = p.stream_id + 1
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self._records[p.stream_id].append(ans_p)
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if call.is_ended:
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packets: list[DMRPPacketData] = self._records[p.stream_id]
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asyncio.create_task(self.repeat(packets))
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del self._records[p.stream_id]
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#------------------------------------
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# App implementation
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def get_name(self) -> str:
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return f"Parrot {self.parrot_id}"
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#------------------------------------
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# IAppCallInterceptor implementation
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def process_call_packet(self, call: Call, p: DMRPPacketData) -> None:
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self.record(call, p)
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