async def fetchMessage(self, count: int) -> T.List[T.Union[FriendMessage, GroupMessage, ExternalEvent]]:
from mirai.event.external.enums import ExternalEvents
result = assertOperatorSuccess(
await fetch.http_get(f"{self.baseurl}/fetchMessage", {
"sessionKey": self.session_key,
"count": count
}
), raise_exception=True, return_as_is=True)['data']
# 因为重新生成一个开销太大, 所以就直接在原数据内进行遍历替换
try:
for index in range(len(result)):
# 判断当前项是否为 Message
if result[index]['type'] in MessageTypes:
if 'messageChain' in result[index]:
result[index]['messageChain'] = MessageChain.parse_obj(result[index]['messageChain'])
result[index] = \
MessageTypes[result[index]['type']].parse_obj(result[index])
elif hasattr(ExternalEvents, result[index]['type']):
# 判断当前项为 Event
result[index] = \
ExternalEvents[result[index]['type']].value.parse_obj(result[index])
except pydantic.ValidationError:
ProtocolLogger.error(f"parse failed: {result}")
traceback.print_exc()
raise
return result
def parse_obj(cls, obj):
from .components import MessageComponents
result = []
for i in obj:
if not isinstance(i, dict):
raise TypeError("invaild value")
try:
result.append(MessageComponents[i['type']].parse_obj(i))
except:
Protocol.error(f"error throwed by message serialization: {i['type']}, it's {i}")
raise
return cls(__root__=result)
def __init__(self, text, **_):
if len(text) > 128:
ProtocolLogger.warn(f"mirai does not support for long string: now its length is {len(text)}")
super().__init__(text=text, type="Plain")