dify 支持图片http请求，方便随时追加API

plugins/dify/main.py

@@ -11,6 +11,7 @@ from plugin_common.message_plugin_interface import MessagePluginInterface
 from plugin_common.plugin_interface import PluginStatus
 from plugins.stats_collector.decorators import plugin_stats_decorator
 from robot_cmd.robot_command import Feature, PermissionStatus, GroupBotManager
+from utils.media_downloader import MediaDownloader
 
 
 class DifyPlugin(MessagePluginInterface):
@@ -152,7 +153,13 @@ class DifyPlugin(MessagePluginInterface):
 
             # 发送回复
             if response:
-                wcf.send_text(response, (roomid if roomid else sender), sender if roomid else "")
+                # 判断是否为本地文件路径
+                if os.path.isfile(response):
+                    # 如果是文件路径，使用发送文件方法
+                    wcf.send_file(response, (roomid if roomid else sender))
+                else:
+                    # 如果是普通文本，使用发送文本方法
+                    wcf.send_text(response, (roomid if roomid else sender), sender if roomid else "")
                 return True, "发送成功"
             else:
                 wcf.send_text("❌未能获取到回复，请稍后再试", (roomid if roomid else sender), sender if roomid else "")
@@ -256,10 +263,17 @@ class DifyPlugin(MessagePluginInterface):
             # 获取输出内容
             outputs = response_data.get("data", {}).get("outputs", {})
             if outputs:
-                # 尝试从text字段获取回答
-                if "text" in outputs and isinstance(outputs["text"], str):
+                # 处理媒体类型返回
+                if "result" in outputs and "type" in outputs:
+                    if outputs["type"] == "image":
+                        downloader = MediaDownloader()
+                        image_url = outputs["result"]
+                        image_path = downloader.download_media(image_url)
+                        answer = image_path
+                # 处理文本类型返回
+                elif "text" in outputs and isinstance(outputs["text"], str):
                     answer = outputs["text"]
-                # 如果没有text字段，尝试从其他字段获取
+                # 兼容旧版处理逻辑
                 else:
                     for key, value in outputs.items():
                         if isinstance(value, str) and value.strip():