初次提交请多关照

konabot/plugins/maya_echo/__init__.py

@@ -0,0 +1,9 @@
+from nonebot import on_message
+from nonebot_plugin_alconna import UniMessage, UniMsg
+
+evt = on_message()
+
+@evt.handle()
+async def _(msg: UniMsg):
+    if msg.extract_plain_text() == "喵":
+        await evt.send(await UniMessage().text("喵").export())

konabot/plugins/weather/__init__.py

@@ -0,0 +1,16 @@
+from nonebot_plugin_alconna import Alconna, Args, Field, UniMessage, on_alconna
+
+from konabot.plugins.weather.fetcher import fetch_radar
+
+evt = on_alconna(Alconna(
+    "!雷达回波",
+    Args["region", str, Field(missing_tips=lambda: "请输入需要获取的地区，例如 !雷达回波 华南")],
+), use_cmd_start=False, use_cmd_sep=False, skip_for_unmatch=False)
+
+@evt.handle()
+async def _(region: str):
+    img, err = await fetch_radar(region)
+    if err != None:
+        await evt.send(await UniMessage().text(err).export())
+        return
+    await evt.send(await UniMessage.image(raw=img).export())

konabot/plugins/weather/fetcher.py

@@ -0,0 +1,37 @@
+import functools
+
+import httpx
+from bs4 import BeautifulSoup
+
+STATION_LINKS = {
+    "全国": "https://www.nmc.cn/publish/radar/chinaall.html",
+    "华北": "https://www.nmc.cn/publish/radar/huabei.html",
+    "东北": "https://www.nmc.cn/publish/radar/dongbei.html",
+    "华东": "https://www.nmc.cn/publish/radar/huadong.html",
+    "华中": "https://www.nmc.cn/publish/radar/huazhong.html",
+    "华南": "https://www.nmc.cn/publish/radar/huanan.html",
+    "西南": "https://www.nmc.cn/publish/radar/xinan.html",
+    "西北": "https://www.nmc.cn/publish/radar/xibei.html",
+}
+
+async def fetch_radar(station: str) -> tuple[bytes, None] | tuple[None, str]:
+    if station not in STATION_LINKS.keys():
+        return None, f"获取失败：站点不存在。可用的站点：{','.join(STATION_LINKS.keys())}"
+
+    async with httpx.AsyncClient() as client:
+        response = await client.get(STATION_LINKS[station])
+        if response.status_code != 200:
+            return None, "获取失败：可能存在网络错误"
+
+        soup = BeautifulSoup(response.text, "lxml")
+        links = functools.reduce(lambda x, y: x + y, [
+            img.get_attribute_list("src") for img in soup.select("div.imgblock>img#imgpath")
+        ])
+        if len(links) != 1:
+            return None, "获取失败：链接获取失败"
+
+        response2 = await client.get(links[0])
+        if response2.status_code != 200:
+            return None, "获取失败：图片下载失败"
+
+        return response2.content, None