feat: create google drive ingest component (#3129)

* feat: create google drive ingest component

It adds the basic implementation of the Google Drive Loader.

* feat: create google drive ingest component

Created a basic Google Drive loader component

* Updated the Icon

* updated the formatting

ran make format to update the formatting

* Addressed comments

src/backend/base/langflow/components/data/GoogleDrive.py

@@ -0,0 +1,87 @@
+import json
+from typing import Optional
+from google.oauth2.credentials import Credentials
+from google.auth.exceptions import RefreshError
+from langflow.custom import Component
+from langflow.inputs import MessageTextInput
+from langflow.io import SecretStrInput
+from langflow.template import Output
+from langflow.schema import Data
+from langchain_google_community import GoogleDriveLoader
+from langflow.helpers.data import docs_to_data
+
+from json.decoder import JSONDecodeError
+
+
+class GoogleDriveComponent(Component):
+    display_name = "Google Drive Loader"
+    description = "Loads documents from Google Drive using provided credentials."
+    icon = "Google"
+
+    inputs = [
+        SecretStrInput(
+            name="json_string",
+            display_name="JSON String of the Service Account Token",
+            info="JSON string containing OAuth 2.0 access token information for service account access",
+            required=True,
+        ),
+        MessageTextInput(
+            name="document_id", display_name="Document ID", info="Single Google Drive document ID", required=True
+        ),
+    ]
+
+    outputs = [
+        Output(display_name="Loaded Documents", name="docs", method="load_documents"),
+    ]
+
+    def load_documents(self) -> Data:
+        class CustomGoogleDriveLoader(GoogleDriveLoader):
+            creds: Optional[Credentials] = None
+            """Credentials object to be passed directly."""
+
+            def _load_credentials(self):
+                """Load credentials from the provided creds attribute or fallback to the original method."""
+                if self.creds:
+                    return self.creds
+                else:
+                    raise ValueError("No credentials provided.")
+
+            class Config:
+                arbitrary_types_allowed = True
+
+        json_string = self.json_string
+
+        document_ids = [self.document_id]
+        if len(document_ids) != 1:
+            raise ValueError("Expected a single document ID")
+
+        # TODO: Add validation to check if the document ID is valid
+
+        # Load the token information from the JSON string
+        try:
+            token_info = json.loads(json_string)
+        except JSONDecodeError as e:
+            raise ValueError("Invalid JSON string") from e
+
+        # Initialize the custom loader with the provided credentials and document IDs
+        loader = CustomGoogleDriveLoader(
+            creds=Credentials.from_authorized_user_info(token_info), document_ids=document_ids
+        )
+
+        # Load the documents
+        try:
+            docs = loader.load()
+        # catch google.auth.exceptions.RefreshError
+        except RefreshError as e:
+            raise ValueError(
+                "Authentication error: Unable to refresh authentication token. Please try to reauthenticate."
+            ) from e
+        except Exception as e:
+            raise ValueError(f"Error loading documents: {e}") from e
+
+        assert len(docs) == 1, "Expected a single document to be loaded."
+
+        data = docs_to_data(docs)
+        # Return the loaded documents
+        self.status = data
+        return Data(data={"text": data})