feat: custom webapp logo (#1766)

api/controllers/files/image_preview.py

@@ -1,10 +1,12 @@
 from flask import request, Response
 from flask_restful import Resource
+from werkzeug.exceptions import NotFound
 
 import services
 from controllers.files import api
 from libs.exception import BaseHTTPException
 from services.file_service import FileService
+from services.account_service import TenantService
 
 
 class ImagePreviewApi(Resource):
@@ -29,9 +31,30 @@ class ImagePreviewApi(Resource):
             raise UnsupportedFileTypeError()
 
         return Response(generator, mimetype=mimetype)
+    
+
+class WorkspaceWebappLogoApi(Resource):
+    def get(self, workspace_id):
+        workspace_id = str(workspace_id)
+
+        custom_config = TenantService.get_custom_config(workspace_id)
+        webapp_logo_file_id = custom_config.get('replace_webapp_logo') if custom_config is not None else None
+
+        if not webapp_logo_file_id:
+            raise NotFound(f'webapp logo is not found')
+
+        try:
+            generator, mimetype = FileService.get_public_image_preview(
+                webapp_logo_file_id,
+            )
+        except services.errors.file.UnsupportedFileTypeError:
+            raise UnsupportedFileTypeError()
+
+        return Response(generator, mimetype=mimetype)
 
 
 api.add_resource(ImagePreviewApi, '/files/<uuid:file_id>/image-preview')
+api.add_resource(WorkspaceWebappLogoApi, '/files/workspaces/<uuid:workspace_id>/webapp-logo')
 
 
 class UnsupportedFileTypeError(BaseHTTPException):