视频功能优化

plugins/video/main.py

@@ -151,7 +151,14 @@ class VideoPlugin(MessagePluginInterface):
         try:
             # 发送GET请求，启用流式传输
             self.LOG.info(f"开始从 {url} 下载视频")
-            response = requests.get(url, stream=True, timeout=30)
+            headers = {
+                "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36",
+                "Accept": "*/*",
+                "Accept-Encoding": "gzip, deflate, br",
+                "Connection": "keep-alive",
+                "Referer": "https://api.guiguiya.com/"
+            }
+            response = requests.get(url, stream=True, timeout=30, headers=headers, allow_redirects=True)
 
             # 检查请求是否成功
             response.raise_for_status()  # 如果状态码不是200，将抛出异常
@@ -173,18 +180,41 @@ class VideoPlugin(MessagePluginInterface):
 
             # 以二进制写入模式保存流数据
             try:
+                total_size = int(response.headers.get('Content-Length', 0))
+                self.LOG.info(f"预期下载大小: {total_size} 字节")
+                downloaded_size = 0
+                
                 with open(save_path, "wb") as file:
                     for chunk in response.iter_content(chunk_size=1024):  # 分块读取，每块1KB
                         if chunk:  # 过滤空块
                             file.write(chunk)
-                self.LOG.info(f"视频已下载到: {save_path}")
+                            downloaded_size += len(chunk)
+                    
+                self.LOG.info(f"视频已下载到: {save_path}, 大小: {downloaded_size} 字节")
+                
+                # 验证下载是否完整
+                if total_size > 0 and downloaded_size < total_size * 0.9:  # 如果下载不到预期大小的90%
+                    self.LOG.error(f"下载不完整: 预期 {total_size} 字节, 实际 {downloaded_size} 字节")
+                    return None, None
             except IOError as e:
                 self.LOG.error(f"文件写入失败: {e}")
                 return None, None
                 
-            # 检查文件是否存在且大小大于0
-            if not os.path.exists(save_path) or os.path.getsize(save_path) == 0:
-                self.LOG.error(f"下载的文件不存在或为空: {save_path}")
+            # 检查文件是否存在且大小合理
+            if not os.path.exists(save_path):
+                self.LOG.error(f"下载的文件不存在: {save_path}")
+                return None, None
+                
+            file_size = os.path.getsize(save_path)
+            if file_size < 10000:  # 小于10KB的文件可能不是有效视频
+                self.LOG.error(f"下载的文件太小，可能不是有效视频: {file_size} 字节")
+                # 尝试读取文件内容以诊断问题
+                try:
+                    with open(save_path, 'rb') as f:
+                        content_preview = f.read(200)
+                        self.LOG.warning(f"文件内容预览(十六进制): {content_preview.hex()[:100]}")
+                except Exception as e:
+                    self.LOG.error(f"读取文件内容失败: {e}")
                 return None, None
                 
             # 加入首帧下载