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🔀 Merge pull request #54

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fix temp matcher delete
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Ju4tCode 2020-11-16 20:05:49 +08:00 committed by GitHub
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6 changed files with 257 additions and 86 deletions
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17
docs/api/exception.md
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@ -83,23 +83,6 @@ sidebarDepth: 0
## _exception_ `ExpiredException`
基类：`Exception`
* **说明**
指示 NoneBot 当前 `Matcher` 已失效。
* **用法**
当 `Matcher` 运行前检查时抛出。
## _exception_ `StopPropagation`
基类：`Exception`

135
docs/api/message.md
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@ -6,3 +6,138 @@ sidebarDepth: 0
# NoneBot.message 模块
## 事件处理
NoneBot 内部处理并按优先级分发事件给所有事件响应器，提供了多个插槽以进行事件的预处理等。
## `event_preprocessor(func)`
* **说明**
事件预处理。装饰一个函数，使它在每次接收到事件并分发给各响应器之前执行。
* **参数**
事件预处理函数接收三个参数。
* `bot: Bot`: Bot 对象
* `event: Event`: Event 对象
* `state: dict`: 当前 State
## `event_postprocessor(func)`
* **说明**
事件后处理。装饰一个函数，使它在每次接收到事件并分发给各响应器之后执行。
* **参数**
事件后处理函数接收三个参数。
* `bot: Bot`: Bot 对象
* `event: Event`: Event 对象
* `state: dict`: 当前事件运行前 State
## `run_preprocessor(func)`
* **说明**
运行预处理。装饰一个函数，使它在每次事件响应器运行前执行。
* **参数**
运行预处理函数接收四个参数。
* `matcher: Matcher`: 当前要运行的事件响应器
* `bot: Bot`: Bot 对象
* `event: Event`: Event 对象
* `state: dict`: 当前 State
## `run_postprocessor(func)`
* **说明**
运行后处理。装饰一个函数，使它在每次事件响应器运行后执行。
* **参数**
运行后处理函数接收五个参数。
* `matcher: Matcher`: 运行完毕的事件响应器
* `exception: Optional[Exception]`: 事件响应器运行错误（如果存在）
* `bot: Bot`: Bot 对象
* `event: Event`: Event 对象
* `state: dict`: 当前 State
## _async_ `handle_event(bot, event)`
* **说明**
处理一个事件。调用该函数以实现分发事件。
* **参数**
* `bot: Bot`: Bot 对象
* `event: Event`: Event 对象
* **示例**
```python
import asyncio
asyncio.create_task(handle_event(bot, event))
```

4
docs/api/typing.md
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@ -163,13 +163,13 @@ sidebarDepth: 0
* **类型**
`Callable[[Matcher, List[Any], Bot, Event, dict], Union[Awaitable[None], Awaitable[NoReturn]]]`
`Callable[[Matcher, Optional[Exception], Bot, Event, dict], Union[Awaitable[None], Awaitable[NoReturn]]]`
* **说明**
事件响应器运行前预处理函数 RunPostProcessor 类型，第二个参数包含运行时产生的错误以及 `ExpiredException`, `StopPropagation` (如果存在)
事件响应器运行前预处理函数 RunPostProcessor 类型，第二个参数为运行时产生的错误（如果存在）

19
nonebot/exception.py
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@ -9,12 +9,6 @@
from nonebot.typing import List, Type, Optional
class _ExceptionContainer(Exception):
def __init__(self, exceptions: List[Type[Exception]]) -> None:
self.exceptions = exceptions
class IgnoredException(Exception):
"""
:说明:
@ -79,19 +73,6 @@ class FinishedException(Exception):
pass
class ExpiredException(Exception):
"""
:说明:
指示 NoneBot 当前 ``Matcher`` 已失效。
:用法:
当 ``Matcher`` 运行前检查时抛出。
"""
pass
class StopPropagation(Exception):
"""
:说明:

162
nonebot/message.py
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@ -1,6 +1,8 @@
"""
事件处理
========
NoneBot 内部处理并按优先级分发事件给所有事件响应器，提供了多个插槽以进行事件的预处理等。
"""
import asyncio
@ -9,10 +11,9 @@ from datetime import datetime
from nonebot.log import logger
from nonebot.rule import TrieRule
from nonebot.utils import escape_tag
from nonebot.matcher import matchers
from nonebot.exception import IgnoredException, ExpiredException
from nonebot.exception import StopPropagation, _ExceptionContainer
from nonebot.typing import Set, Type, Union, NoReturn, Bot, Event, Matcher
from nonebot.matcher import matchers, Matcher
from nonebot.typing import Set, Type, Union, Optional, Iterable, NoReturn, Bot, Event
from nonebot.exception import IgnoredException, StopPropagation
from nonebot.typing import EventPreProcessor, RunPreProcessor, EventPostProcessor, RunPostProcessor
_event_preprocessors: Set[EventPreProcessor] = set()
@ -22,39 +23,108 @@ _run_postprocessors: Set[RunPostProcessor] = set()
def event_preprocessor(func: EventPreProcessor) -> EventPreProcessor:
"""
:说明:
事件预处理。装饰一个函数，使它在每次接收到事件并分发给各响应器之前执行。
:参数:
事件预处理函数接收三个参数。
* ``bot: Bot``: Bot 对象
* ``event: Event``: Event 对象
* ``state: dict``: 当前 State
"""
_event_preprocessors.add(func)
return func
def event_postprocessor(func: EventPostProcessor) -> EventPostProcessor:
"""
:说明:
事件后处理。装饰一个函数，使它在每次接收到事件并分发给各响应器之后执行。
:参数:
事件后处理函数接收三个参数。
* ``bot: Bot``: Bot 对象
* ``event: Event``: Event 对象
* ``state: dict``: 当前事件运行前 State
"""
_event_postprocessors.add(func)
return func
def run_preprocessor(func: RunPreProcessor) -> RunPreProcessor:
"""
:说明:
运行预处理。装饰一个函数，使它在每次事件响应器运行前执行。
:参数:
运行预处理函数接收四个参数。
* ``matcher: Matcher``: 当前要运行的事件响应器
* ``bot: Bot``: Bot 对象
* ``event: Event``: Event 对象
* ``state: dict``: 当前 State
"""
_run_preprocessors.add(func)
return func
def run_postprocessor(func: RunPostProcessor) -> RunPostProcessor:
"""
:说明:
运行后处理。装饰一个函数，使它在每次事件响应器运行后执行。
:参数:
运行后处理函数接收五个参数。
* ``matcher: Matcher``: 运行完毕的事件响应器
* ``exception: Optional[Exception]``: 事件响应器运行错误（如果存在）
* ``bot: Bot``: Bot 对象
* ``event: Event``: Event 对象
* ``state: dict``: 当前 State
"""
_run_postprocessors.add(func)
return func
async def _check_matcher(priority: int, bot: Bot, event: Event,
state: dict) -> Iterable[Type[Matcher]]:
current_matchers = matchers[priority].copy()
async def _check(Matcher: Type[Matcher], bot: Bot, event: Event,
state: dict) -> Optional[Type[Matcher]]:
try:
if await Matcher.check_perm(
bot, event) and await Matcher.check_rule(bot, event, state):
return Matcher
except Exception as e:
logger.opt(colors=True, exception=e).error(
f"<r><bg #f8bbd0>Rule check failed for {Matcher}.</bg #f8bbd0></r>"
)
return None
async def _check_expire(Matcher: Type[Matcher]) -> Optional[Type[Matcher]]:
if Matcher.temp or (Matcher.expire_time and
datetime.now() > Matcher.expire_time):
return Matcher
return None
checking_tasks = [
_check(Matcher, bot, event, state) for Matcher in current_matchers
]
checking_expire_tasks = [
_check_expire(Matcher) for Matcher in current_matchers
]
results = await asyncio.gather(*checking_tasks, return_exceptions=True)
expired = await asyncio.gather(*checking_expire_tasks)
for expired_matcher in filter(lambda x: x and x in results, expired):
try:
matchers[priority].remove(expired_matcher)
except Exception:
pass
return filter(lambda x: x, results)
async def _run_matcher(Matcher: Type[Matcher], bot: Bot, event: Event,
state: dict) -> Union[None, NoReturn]:
if Matcher.expire_time and datetime.now() > Matcher.expire_time:
raise _ExceptionContainer([ExpiredException])
try:
if not await Matcher.check_perm(
bot, event) or not await Matcher.check_rule(bot, event, state):
return
except Exception as e:
logger.opt(colors=True, exception=e).error(
f"<r><bg #f8bbd0>Rule check failed for {Matcher}.</bg #f8bbd0></r>")
return
logger.info(f"Event will be handled by {Matcher}")
matcher = Matcher()
@ -74,7 +144,7 @@ async def _run_matcher(Matcher: Type[Matcher], bot: Bot, event: Event,
"Running cancelled!</bg #f8bbd0></r>")
return
exceptions = []
exception = None
try:
logger.debug(f"Running matcher {matcher}")
@ -83,15 +153,10 @@ async def _run_matcher(Matcher: Type[Matcher], bot: Bot, event: Event,
logger.opt(colors=True, exception=e).error(
f"<r><bg #f8bbd0>Running matcher {matcher} failed.</bg #f8bbd0></r>"
)
exceptions.append(e)
if Matcher.temp:
exceptions.append(ExpiredException)
if Matcher.block:
exceptions.append(StopPropagation)
exception = e
coros = list(
map(lambda x: x(matcher, exceptions, bot, event, state),
map(lambda x: x(matcher, exception, bot, event, state),
_run_postprocessors))
if coros:
try:
@ -101,11 +166,24 @@ async def _run_matcher(Matcher: Type[Matcher], bot: Bot, event: Event,
"<r><bg #f8bbd0>Error when running RunPostProcessors</bg #f8bbd0></r>"
)
if exceptions:
raise _ExceptionContainer(exceptions)
if matcher.block:
raise StopPropagation
async def handle_event(bot: Bot, event: Event):
"""
:说明:
处理一个事件。调用该函数以实现分发事件。
:参数:
* ``bot: Bot``: Bot 对象
* ``event: Event``: Event 对象
:示例:
.. code-block:: python
import asyncio
asyncio.create_task(handle_event(bot, event))
"""
show_log = True
log_msg = f"<m>{bot.type.upper()} </m>| {event.self_id} [{event.name}]: "
if event.type == "message":
@ -153,29 +231,23 @@ async def handle_event(bot: Bot, event: Event):
if break_flag:
break
pending_tasks = [
_run_matcher(matcher, bot, event, state.copy())
for matcher in matchers[priority]
]
if show_log:
logger.debug(f"Checking for matchers in priority {priority}...")
run_matchers = await _check_matcher(priority, bot, event, state)
pending_tasks = [
_run_matcher(matcher, bot, event, state.copy())
for matcher in run_matchers
]
results = await asyncio.gather(*pending_tasks, return_exceptions=True)
i = 0
for index, result in enumerate(results):
if isinstance(result, _ExceptionContainer):
e_list = result.exceptions
if StopPropagation in e_list:
if not break_flag:
break_flag = True
logger.debug("Stop event propagation")
if ExpiredException in e_list:
logger.debug(
f"Matcher {matchers[priority][index - i]} will be removed."
)
del matchers[priority][index - i]
i += 1
for result in results:
if result is StopPropagation:
if not break_flag:
break_flag = True
logger.debug("Stop event propagation")
coros = list(map(lambda x: x(bot, event, state), _event_postprocessors))
if coros:

6
nonebot/typing.py
View File

@ -119,14 +119,14 @@ RunPreProcessor = Callable[["Matcher", Bot, Event, dict],
事件响应器运行前预处理函数 RunPreProcessor 类型
"""
RunPostProcessor = Callable[["Matcher", List[Any], Bot, Event, dict],
RunPostProcessor = Callable[["Matcher", Optional[Exception], Bot, Event, dict],
Union[Awaitable[None], Awaitable[NoReturn]]]
"""
:类型: ``Callable[[Matcher, List[Any], Bot, Event, dict], Union[Awaitable[None], Awaitable[NoReturn]]]``
:类型: ``Callable[[Matcher, Optional[Exception], Bot, Event, dict], Union[Awaitable[None], Awaitable[NoReturn]]]``
:说明:
事件响应器运行前预处理函数 RunPostProcessor 类型，第二个参数包含运行时产生的错误以及 ``ExpiredException``, ``StopPropagation`` (如果存在)
事件响应器运行前预处理函数 RunPostProcessor 类型，第二个参数为运行时产生的错误（如果存在）
"""
Matcher = TypeVar("Matcher", bound="MatcherClass")