Mr.Xia
f240ba2882
- image_render: cached draw object, font.getlength() 替代逐字符创建临时Image - image_render: 移除PNG无效的quality参数 - api.py: ImageRenderer单例复用(避免每请求重载字体) - api.py: 异常详情不再泄露到API响应 - sender.py: 提取_send_msg()消除重复代码
147 lines
4.6 KiB
Python
147 lines
4.6 KiB
Python
"""API 接口模块 - FastAPI 路由定义"""
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from fastapi import APIRouter, Request, HTTPException
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from pydantic import BaseModel
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import asyncio
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from typing import Optional
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from nonebot import get_driver, logger
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from .config import Config
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from .text_parser import TextParser
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from .image_render import ImageRenderer
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# Module-level singleton: load font once, reuse across requests
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_renderer = _renderer # reuse module-level singleton
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from .sender import sender
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# 请求体模型
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class PushRequest(BaseModel):
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"""推送请求模型"""
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group_id: int
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"""接收消息的 QQ 群号"""
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qq: int
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"""被 @ 的 QQ 号"""
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text: str
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"""通知文本（# 表示换行）"""
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# 响应模型
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class PushResponse(BaseModel):
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"""推送响应模型"""
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success: bool
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"""是否成功"""
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message: str
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"""响应消息"""
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data: Optional[dict] = None
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"""返回数据（如有）"""
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# 创建路由器
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router = APIRouter()
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def create_routes(token: str, config: Config):
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"""
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创建 API 路由
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Args:
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token: 鉴权 Token
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config: 配置对象
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"""
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@router.post(f"/danding/qqpush/{token}", response_model=PushResponse)
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async def qqpush(request: Request, data: PushRequest):
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"""
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QQ 消息推送接口
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Args:
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request: FastAPI 请求对象
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data: 推送请求数据
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Returns:
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推送结果
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"""
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try:
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# 1. 验证参数
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if not data.group_id:
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raise HTTPException(status_code=400, detail="group_id 不能为空")
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if not data.qq:
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raise HTTPException(status_code=400, detail="qq 不能为空")
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if not data.text or not isinstance(data.text, str):
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raise HTTPException(status_code=400, detail="text 不能为空且必须是字符串")
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# 2. 检查 Bot 是否在线
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bot = sender.get_bot()
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if not bot:
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logger.error("Bot 实例未设置，无法发送消息")
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raise HTTPException(
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status_code=500,
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detail="Bot 未连接，请检查机器人状态"
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)
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# 3. 文本处理
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text_parser = TextParser(max_length=config.MaxTextLength)
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if not text_parser.validate_text(data.text):
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raise HTTPException(status_code=400, detail="文本内容无效")
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parsed_text = text_parser.parse(data.text)
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logger.info(f"解析文本: {parsed_text[:50]}..." if len(parsed_text) > 50 else parsed_text)
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# 4. 生成图片
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image_renderer = ImageRenderer(
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width=config.ImageWidth,
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font_size=config.ImageFontSize,
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padding=config.ImagePadding,
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line_spacing=config.ImageLineSpacing,
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bg_color=config.ImageBgColor,
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text_color=config.ImageTextColor,
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font_paths=config.FontPaths
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)
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image_base64 = await asyncio.to_thread(image_renderer.render_to_base64, parsed_text)
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logger.info("图片生成成功")
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# 5. 发送消息
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send_result = await sender.send_to_group(
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group_id=data.group_id,
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qq=data.qq,
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image_base64=image_base64
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)
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if not send_result["success"]:
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logger.error(f"消息发送失败: {send_result['error']}")
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raise HTTPException(
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status_code=500,
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detail=send_result["message"]
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)
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logger.info(f"消息发送成功 - 群: {data.group_id}, @: {data.qq}")
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return PushResponse(
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success=True,
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message="推送成功",
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data={
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"group_id": data.group_id,
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"qq": data.qq,
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"message_id": send_result["data"].get("message_id")
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}
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)
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except HTTPException:
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raise
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except Exception as e:
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logger.exception(f"推送接口异常: {e}")
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raise HTTPException(
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status_code=500,
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detail="服务器内部错误"
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)
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return router
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