feat: 支持rar资料包导入

apps/documents/services.py

@@ -282,6 +282,11 @@ def _expand_uploaded_files(uploaded_files: list) -> list[dict]:
             expanded_files.extend(extraction["files"])
             warnings.extend(extraction["warnings"])
             continue
+        if extension == ".rar":
+            extraction = _extract_rar_entries(uploaded_file)
+            expanded_files.extend(extraction["files"])
+            warnings.extend(extraction["warnings"])
+            continue
         expanded_files.append(
             {
                 "relative_path": uploaded_file.name,
@@ -435,6 +440,39 @@ def _extract_7z_entries(uploaded_file) -> dict:
     return {"files": entries, "warnings": warnings}
 
 
+def _extract_rar_entries(uploaded_file) -> dict:
+    try:
+        import rarfile
+    except ImportError as exc:
+        raise RuntimeError("处理 .rar 资料包需要安装 rarfile。") from exc
+
+    archive_bytes = uploaded_file.read()
+    uploaded_file.seek(0)
+    entries = []
+    warnings = []
+    with rarfile.RarFile(BytesIO(archive_bytes)) as archive:
+        for info in archive.infolist():
+            if info.is_dir():
+                continue
+            relative_path = info.filename.replace("\\", "/")
+            extension = Path(relative_path).suffix.lower()
+            if extension not in {".txt", ".md", ".pdf", ".docx"}:
+                warnings.append(f"跳过不支持的文件：{relative_path}")
+                continue
+            file_data = archive.read(info.filename)
+            extracted_file = SimpleUploadedFile(
+                Path(relative_path).name,
+                file_data,
+            )
+            entries.append(
+                {
+                    "relative_path": relative_path,
+                    "uploaded_file": extracted_file,
+                }
+            )
+    return {"files": entries, "warnings": warnings}
+
+
 def _detect_document_role(file_name: str) -> str:
     normalized = file_name.lower()
     if "申请表" in file_name: