From 2f06321ebf8b6348e911ecd2407525095af46eda Mon Sep 17 00:00:00 2001
From: fdc310 <82008029+fdc310@users.noreply.github.com>
Date: Sat, 31 Jan 2026 20:30:46 +0800
Subject: [PATCH] fix: Fix the file URL processing logic to support complete
 URLs (#1950)

---
 src/langbot/pkg/provider/runners/difysvapi.py | 24 ++++++++++++-------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/src/langbot/pkg/provider/runners/difysvapi.py b/src/langbot/pkg/provider/runners/difysvapi.py
index 3e89500a..24d902be 100644
--- a/src/langbot/pkg/provider/runners/difysvapi.py
+++ b/src/langbot/pkg/provider/runners/difysvapi.py
@@ -289,12 +289,16 @@ class DifyServiceAPIRunner(runner.RequestRunner):
                         yield msg
                 if chunk['event'] == 'message_file':
                     if chunk['type'] == 'image' and chunk['belongs_to'] == 'assistant':
-                        base_url = self.dify_client.base_url
+                        # 检查URL是否已经是完整的连接
+                        if chunk['url'].startswith('http://') or chunk['url'].startswith('https://'):
+                            image_url = chunk['url']
+                        else:
+                            base_url = self.dify_client.base_url
 
-                        if base_url.endswith('/v1'):
-                            base_url = base_url[:-3]
+                            if base_url.endswith('/v1'):
+                                base_url = base_url[:-3]
 
-                        image_url = base_url + chunk['url']
+                            image_url = base_url + chunk['url']
 
                         yield provider_message.Message(
                             role='assistant',
@@ -559,12 +563,16 @@ class DifyServiceAPIRunner(runner.RequestRunner):
                 if chunk['event'] == 'message_file':
                     message_idx += 1
                     if chunk['type'] == 'image' and chunk['belongs_to'] == 'assistant':
-                        base_url = self.dify_client.base_url
+                        # 检查URL是否已经是完整的连接
+                        if chunk['url'].startswith('http://') or chunk['url'].startswith('https://'):
+                            image_url = chunk['url']
+                        else:
+                            base_url = self.dify_client.base_url
 
-                        if base_url.endswith('/v1'):
-                            base_url = base_url[:-3]
+                            if base_url.endswith('/v1'):
+                                base_url = base_url[:-3]
 
-                        image_url = base_url + chunk['url']
+                            image_url = base_url + chunk['url']
 
                         yield provider_message.MessageChunk(
                             role='assistant',