feat(notification): 增加钉钉发送图片和文件功能，支持OSS图片上传
- 在DingTalkBot中添加发送图片消息（自动压缩）功能，支持大小限制自动处理 - 添加发送图文混合消息、发送文件消息接口，优化钉钉通知能力 - 实现发送本地图片链接和通过OSS上传图片再发送Markdown图文两种机制 - 新增阿里云OSS上传工具模块，支持文件和图片上传及预签名URL生成 - 创建每日任务调度脚本，实现每日交易日检查、策略执行、结果上传并通知 - 调整回测策略开始日期至2022年，适配最新数据范围
This commit is contained in:
@@ -8,10 +8,12 @@ import hmac
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import hashlib
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import base64
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import urllib.parse
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import os
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from loguru import logger
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from typing import Optional
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from config.settings import get_dingtalk_config
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from core.common.oss_utils import upload_image_to_oss
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class DingTalkBot:
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@@ -132,6 +134,338 @@ class DingTalkBot:
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logger.error(f"钉钉markdown消息发送异常: {e}")
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return False
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def send_image(self, image_path: str, title: str = "图片", max_size_kb: int = 6) -> bool:
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"""
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发送图片消息（自动压缩以适应钉钉20KB限制）
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注意：钉钉限制的是整个请求body大小，base64编码会增加约33%体积，所以图片本身需要更小
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Args:
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image_path: 图片文件路径（本地路径）
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title: 消息标题
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max_size_kb: 最大图片大小（KB），默认6KB（base64后约8KB，加上其他字段约10KB）
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Returns:
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bool: 是否发送成功
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"""
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if not self.webhook:
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logger.warning(f"[钉钉图片未发送] {title}")
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return False
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if not os.path.exists(image_path):
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logger.error(f"图片文件不存在: {image_path}")
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return False
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try:
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# 读取并压缩图片
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image_data = self._compress_image(image_path, max_size_kb)
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if not image_data:
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logger.error(f"图片压缩失败: {image_path}")
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return False
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# 转为base64
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image_base64 = base64.b64encode(image_data).decode("utf-8")
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# 计算图片md5（钉钉需要）
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image_md5 = hashlib.md5(image_data).hexdigest()
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data = {
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"msgtype": "image",
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"image": {
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"base64": image_base64,
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"md5": image_md5
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}
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}
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url = self._gen_signed_url()
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response = requests.post(url, json=data, timeout=10)
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response.raise_for_status()
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result = response.json()
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if result.get("errcode", -1) != 0:
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logger.error(f"钉钉图片发送失败: {result}")
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return False
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logger.info(f"钉钉图片发送成功: {image_path}")
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return True
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except Exception as e:
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logger.error(f"钉钉图片发送异常: {e}")
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return False
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def _compress_image(self, image_path: str, max_size_kb: int) -> bytes:
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"""
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压缩图片到指定大小以下
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Args:
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image_path: 图片路径
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max_size_kb: 最大大小（KB）
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Returns:
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bytes: 压缩后的图片数据
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"""
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from PIL import Image
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import io
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max_size_bytes = max_size_kb * 1024
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# 先尝试读取原图
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with open(image_path, "rb") as f:
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image_data = f.read()
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# 如果已经小于限制，直接返回
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if len(image_data) <= max_size_bytes:
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return image_data
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# 需要压缩，使用PIL重新保存
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img = Image.open(image_path)
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# 转换为RGB（去除alpha通道，减小大小）
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if img.mode in ('RGBA', 'P'):
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img = img.convert('RGB')
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# 逐步降低质量直到满足大小要求
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quality = 85
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min_quality = 30
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while quality >= min_quality:
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buffer = io.BytesIO()
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img.save(buffer, format='JPEG', quality=quality, optimize=True)
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compressed_data = buffer.getvalue()
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if len(compressed_data) <= max_size_bytes:
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logger.info(f"图片压缩成功: {len(image_data)/1024:.1f}KB -> {len(compressed_data)/1024:.1f}KB (quality={quality})")
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return compressed_data
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quality -= 10
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# 如果质量降到最小还不行，尝试缩小尺寸
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logger.warning(f"降低质量无法满足要求，尝试缩小尺寸")
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width, height = img.size
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while width > 200 and height > 200:
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width = int(width * 0.8)
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height = int(height * 0.8)
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resized_img = img.resize((width, height), Image.Resampling.LANCZOS)
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buffer = io.BytesIO()
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resized_img.save(buffer, format='JPEG', quality=min_quality, optimize=True)
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compressed_data = buffer.getvalue()
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if len(compressed_data) <= max_size_bytes:
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logger.info(f"图片压缩成功: {len(image_data)/1024:.1f}KB -> {len(compressed_data)/1024:.1f}KB ({width}x{height})")
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return compressed_data
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logger.error(f"无法将图片压缩到 {max_size_kb}KB 以下")
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return None
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def send_image_with_text(self, image_path: str, title: str = "图片", text: str = "") -> bool:
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"""
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发送图文消息（markdown格式嵌入图片链接）
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注意：需要使用钉钉的媒体文件上传接口获取URL，这里使用简化的markdown图片语法
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Args:
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image_path: 图片文件路径
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title: 消息标题
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text: accompanying text
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Returns:
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bool: 是否发送成功
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"""
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if not self.webhook:
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logger.warning(f"[钉钉图文未发送] {title}")
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return False
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if not os.path.exists(image_path):
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logger.error(f"图片文件不存在: {image_path}")
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return False
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# 先尝试直接发送图片
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success = self.send_image(image_path, title)
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# 如果图片发送成功且有文字，再发送文字
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if success and text:
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time.sleep(0.5) # 避免发送过快
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return self.send_text(f"{title}\n{text}")
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return success
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def send_file(self, file_path: str, title: str = "文件") -> bool:
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"""
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发送文件（通过钉钉文件上传接口）
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注意：需要企业版钉钉机器人，个人版可能不支持
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Args:
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file_path: 文件路径
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title: 文件标题
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Returns:
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bool: 是否发送成功
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"""
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if not self.webhook:
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logger.warning(f"[钉钉文件未发送] {title}")
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return False
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if not os.path.exists(file_path):
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logger.error(f"文件不存在: {file_path}")
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return False
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try:
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# 获取文件大小
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file_size = os.path.getsize(file_path)
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file_name = os.path.basename(file_path)
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# 钉钉文件大小限制：20MB
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if file_size > 20 * 1024 * 1024:
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logger.error(f"文件过大: {file_size/1024/1024:.1f}MB > 20MB")
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return False
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# 读取文件并转为base64
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with open(file_path, "rb") as f:
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file_data = f.read()
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file_base64 = base64.b64encode(file_data).decode("utf-8")
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# 构建消息
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data = {
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"msgtype": "file",
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"file": {
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"base64": file_base64,
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"name": file_name
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}
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}
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url = self._gen_signed_url()
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response = requests.post(url, json=data, timeout=30)
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response.raise_for_status()
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result = response.json()
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if result.get("errcode", -1) != 0:
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# 如果文件发送失败，尝试作为图片发送
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if file_path.lower().endswith(('.png', '.jpg', '.jpeg', '.gif', '.bmp')):
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logger.warning(f"文件发送失败，尝试作为图片发送: {result}")
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return self.send_image(file_path, title)
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logger.error(f"钉钉文件发送失败: {result}")
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return False
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logger.info(f"钉钉文件发送成功: {file_name}")
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return True
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except Exception as e:
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logger.error(f"钉钉文件发送异常: {e}")
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return False
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def send_local_image_as_link(self, image_path: str, title: str = "图片", text: str = "") -> bool:
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"""
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发送本地图片（转换为base64嵌入markdown）
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注意：钉钉不支持直接显示base64图片，此方法会发送图片链接文本
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Args:
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image_path: 图片文件路径
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title: 消息标题
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text: 附加文本
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Returns:
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bool: 是否发送成功
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"""
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if not self.webhook:
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logger.warning(f"[钉钉图片链接未发送] {title}")
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return False
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if not os.path.exists(image_path):
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logger.error(f"图片文件不存在: {image_path}")
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return False
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try:
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# 读取图片
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with open(image_path, "rb") as f:
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image_data = f.read()
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# 转为base64
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image_base64 = base64.b64encode(image_data).decode("utf-8")
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# 获取图片格式
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ext = os.path.splitext(image_path)[1].lower().replace('.', '')
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if ext == 'jpg':
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ext = 'jpeg'
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if ext not in ['png', 'jpeg', 'gif', 'bmp']:
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ext = 'png'
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# 构建data URL（钉钉可能不支持直接显示，但可以作为链接）
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data_url = f"data:image/{ext};base64,{image_base64[:100]}..."
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# 发送markdown消息
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markdown = f"## {title}\n\n"
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if text:
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markdown += f"{text}\n\n"
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markdown += f"**图片**: {os.path.basename(image_path)}\n\n"
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markdown += f"大小: {len(image_data)/1024:.1f}KB\n"
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return self.send_markdown(title, markdown)
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except Exception as e:
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logger.error(f"发送图片链接异常: {e}")
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return False
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def send_image_via_oss(
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self,
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image_path: str,
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title: str = "策略图表",
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text: str = "",
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expire_days: int = 7,
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) -> bool:
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"""
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上传图片到 OSS 并通过 Markdown 发送到钉钉
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这是发送图片的推荐方式，不受 20KB 限制
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Args:
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image_path: 本地图片路径
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title: 消息标题
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text: 附加文本
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expire_days: OSS 链接有效期（天）
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Returns:
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bool: 是否发送成功
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"""
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if not self.webhook:
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logger.warning(f"[钉钉OSS图片未发送] {title}")
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return False
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if not os.path.exists(image_path):
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logger.error(f"图片文件不存在: {image_path}")
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return False
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try:
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# 上传图片到 OSS
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image_url = upload_image_to_oss(image_path, expire_days)
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if not image_url:
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logger.error("图片上传到 OSS 失败")
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# 尝试直接发送压缩后的图片
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return self.send_image(image_path, title)
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# 构建 Markdown 消息
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markdown = f"## {title}\n\n"
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if text:
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markdown += f"{text}\n\n"
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# 添加图片（钉钉 Markdown 支持图片语法）
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markdown += f"\n\n"
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# 添加图片信息
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file_size = os.path.getsize(image_path) / 1024
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markdown += f"---\n"
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markdown += f"**图片**: {os.path.basename(image_path)} ({file_size:.1f}KB)\n"
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markdown += f"**有效期**: {expire_days}天\n"
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# 发送 Markdown 消息
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return self.send_markdown(title, markdown)
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except Exception as e:
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logger.error(f"发送 OSS 图片异常: {e}")
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# 失败时尝试直接发送
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return self.send_image(image_path, title)
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class NotificationManager:
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"""通知管理器 - 统一管理多种通知渠道"""
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Reference in New Issue
Block a user