chore: enhance zip content extraction with posixpath for path normalization

Author: liuruibin

apps/common/handle/impl/text/zip_split_handle.py

@@ -167,14 +167,17 @@ def support(self, file, get_buffer):
     def get_content(self, file, save_image):
         """
         从 zip 中提取并返回拼接的 md 文本，同时收集并保存内嵌图片（通过 save_image 回调）。
+        使用 posixpath 来正确处理 zip 内部的路径拼接与规范化。
         """
         buffer = file.read() if hasattr(file, 'read') else None
         bytes_io = io.BytesIO(buffer) if buffer is not None else io.BytesIO(file)
-        md_parts = []
+        md_items = []  # 存储 (md_text, source_file_path)
         image_mode_list = []
 
+        import posixpath
+
         def is_image_name(name: str):
-            ext = os.path.splitext(name.lower())[1]
+            ext = posixpath.splitext(name.lower())[1]
             return ext in ('.png', '.jpg', '.jpeg', '.gif', '.bmp', '.webp', '.svg')
 
         with zipfile.ZipFile(bytes_io, 'r') as zip_ref:
@@ -197,7 +200,6 @@ def is_image_name(name: str):
                             meta={'debug': False, 'content': raw}
                         )
                         image_mode_list.append(fmodel)
-                        # 在 md 中不直接插入二进制，保存后上层可替换引用
                         continue
 
                     # 为 split_handle 提供可重复读取的 file-like 对象
@@ -210,22 +212,8 @@ def is_image_name(name: str):
                         # 准备一个简单的 get_buffer 回调，返回当前 raw
                         get_buffer = lambda f, _raw=raw: _raw
                         if split_handle.support(inner_file, get_buffer):
-                            # 回到文件头
                             inner_file.seek(0)
                             md_text = split_handle.get_content(inner_file, save_image)
-                            image_list = parse_md_image(md_text)
-                            for image in image_list:
-                                search = re.search("\(.*\)", image)
-                                if search:
-                                    source_image_path = search.group().replace('(', '').replace(')', '')
-                                    source_image_path = source_image_path.strip().split(" ")[0]
-                                    image_path = urljoin(
-                                        real_name, '.' + source_image_path if source_image_path.startswith(
-                                            '/') else source_image_path
-                                    )
-                                    for img_model in image_mode_list:
-                                        if img_model.file_name == os.path.basename(image_path):
-                                            md_text = md_text.replace(source_image_path, f'./oss/file/{img_model.id}')
                             break
 
                     # 如果没有任何 split_handle 处理，按文本解码作为后备
@@ -237,10 +225,42 @@ def is_image_name(name: str):
                             md_text = raw.decode('utf-8', errors='ignore')
 
                     if isinstance(md_text, str) and md_text.strip():
-                        md_parts.append(md_text)
+                        # 保存 md 文本与其所在的文件路径，后面统一做图片路径替换
+                        md_items.append((md_text, real_name))
 
-            # 将收集到的图片通过回调保存
+            # 将收集到的图片通过回调保存（一次性）
             if image_mode_list:
                 save_image(image_mode_list)
 
-        return '\n\n'.join(md_parts)
+        # 后处理：在每个 md 片段中将相对/绝对引用替换为已保存图片的 oss 路径
+        content_parts = []
+        for md_text, base_name in md_items:
+            image_refs = parse_md_image(md_text)
+            for image in image_refs:
+                search = re.search(r"\(.*\)", image)
+                if not search:
+                    continue
+                source_image_path = search.group().strip("()").split(" ")[0]
+
+                # 规范化 zip 内部路径：若以 '/' 开头，视为相对于 zip 根，否则相对于 base_name 的目录
+                if source_image_path.startswith('/'):
+                    joined = posixpath.normpath(source_image_path.lstrip('/'))
+                else:
+                    base_dir = posixpath.dirname(base_name)
+                    joined = posixpath.normpath(posixpath.join(base_dir, source_image_path))
+
+                # 匹配已收集图片：以文件名做匹配（zip 中的文件名通常是不含反斜杠的 POSIX 风格）
+                matched = None
+                for img_model in image_mode_list:
+                    if img_model.file_name == posixpath.basename(joined):
+                        matched = img_model
+                        break
+
+                if matched:
+                    md_text = md_text.replace(source_image_path, f'./oss/file/{matched.id}')
+
+            content_parts.append(md_text)
+
+        return '\n\n'.join(content_parts)
+
+