From 7092c3f9553da13de764565fa48d3e6256b50c05 Mon Sep 17 00:00:00 2001
From: Jerry Yan <792602257@qq.com>
Date: Mon, 2 Feb 2026 17:53:09 +0800
Subject: [PATCH] =?UTF-8?q?feat(annotation):=20=E8=B0=83=E6=95=B4=E6=96=87?=
 =?UTF-8?q?=E6=9C=AC=E7=BC=96=E8=BE=91=E5=99=A8=E5=A4=A7=E5=B0=8F=E9=99=90?=
 =?UTF-8?q?=E5=88=B6=E9=85=8D=E7=BD=AE?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- 将editor_max_text_bytes默认值从2MB改为0，表示不限制
- 更新文本获取服务中的大小检查逻辑，只在max_bytes大于0时进行限制
- 修改错误提示信息中的字节限制显示
- 优化配置参数的条件判断流程
---
 runtime/datamate-python/app/core/config.py            |  2 +-
 .../app/module/annotation/service/text_fetcher.py     | 11 ++++++-----
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/runtime/datamate-python/app/core/config.py b/runtime/datamate-python/app/core/config.py
index 10adb00..df3efa2 100644
--- a/runtime/datamate-python/app/core/config.py
+++ b/runtime/datamate-python/app/core/config.py
@@ -66,7 +66,7 @@ class Settings(BaseSettings):
     datamate_backend_base_url: str = "http://datamate-backend:8080/api"
 
     # 标注编辑器（Label Studio Editor）相关
-    editor_max_text_bytes: int = 2 * 1024 * 1024  # 2MB，避免一次加载超大文本卡死前端
+    editor_max_text_bytes: int = 0  # <=0 表示不限制，正数为最大字节数
 
 # 全局设置实例
 settings = Settings()
diff --git a/runtime/datamate-python/app/module/annotation/service/text_fetcher.py b/runtime/datamate-python/app/module/annotation/service/text_fetcher.py
index 8bea9ca..bd24c25 100644
--- a/runtime/datamate-python/app/module/annotation/service/text_fetcher.py
+++ b/runtime/datamate-python/app/module/annotation/service/text_fetcher.py
@@ -19,23 +19,24 @@ async def fetch_text_content_via_download_api(dataset_id: str, file_id: str) ->
             resp = await client.get(url)
             resp.raise_for_status()
 
+            max_bytes = settings.editor_max_text_bytes
             content_length = resp.headers.get("content-length")
-            if content_length:
+            if max_bytes > 0 and content_length:
                 try:
-                    if int(content_length) > settings.editor_max_text_bytes:
+                    if int(content_length) > max_bytes:
                         raise HTTPException(
                             status_code=413,
-                            detail=f"文本文件过大，限制 {settings.editor_max_text_bytes} 字节",
+                            detail=f"文本文件过大，限制 {max_bytes} 字节",
                         )
                 except ValueError:
                     # content-length 非法则忽略，走实际长度判断
                     pass
 
             data = resp.content
-            if len(data) > settings.editor_max_text_bytes:
+            if max_bytes > 0 and len(data) > max_bytes:
                 raise HTTPException(
                     status_code=413,
-                    detail=f"文本文件过大，限制 {settings.editor_max_text_bytes} 字节",
+                    detail=f"文本文件过大，限制 {max_bytes} 字节",
                 )
 
             # TEXT POC：默认按 UTF-8 解码，不可解码字符用替换符处理