Feat: add File input component

src/backend/base/langflow/components/inputs/FileInput.py

@@ -0,0 +1,48 @@
+from pathlib import Path
+from typing import Any, Dict
+
+from langflow.base.data.utils import TEXT_FILE_TYPES, parse_text_file_to_record
+from langflow.interface.custom.custom_component import CustomComponent
+from langflow.schema import Record
+
+
+class FileInput(CustomComponent):
+    display_name = "File Input"
+    description = "A generic file input."
+    icon = "file-text"
+
+    def build_config(self) -> Dict[str, Any]:
+        return {
+            "path": {
+                "display_name": "Path",
+                "field_type": "file",
+                "file_types": TEXT_FILE_TYPES,
+                "info": f"Supported file types: {', '.join(TEXT_FILE_TYPES)}",
+            },
+            "silent_errors": {
+                "display_name": "Silent Errors",
+                "advanced": True,
+                "info": "If true, errors will not raise an exception.",
+            },
+        }
+
+    def load_file(self, path: str, silent_errors: bool = False) -> Record:
+        resolved_path = self.resolve_path(path)
+        path_obj = Path(resolved_path)
+        extension = path_obj.suffix[1:].lower()
+        if extension == "doc":
+            raise ValueError("doc files are not supported. Please save as .docx")
+        if extension not in TEXT_FILE_TYPES:
+            raise ValueError(f"Unsupported file type: {extension}")
+        record = parse_text_file_to_record(resolved_path, silent_errors)
+        self.status = record if record else "No data"
+        return record or Record()
+
+    def build(
+        self,
+        path: str,
+        silent_errors: bool = False,
+    ) -> Record:
+        record = self.load_file(path, silent_errors)
+        self.status = record
+        return record