deposit: force no caching in the response headers

Co-authored-by: jrcastro2 <jrcastro9515@gmail.com>

closes CERNDocumentServer/cds-rdm#302

Author: zzacharo

invenio_app_rdm/records_ui/views/decorators.py

@@ -403,3 +403,24 @@ def view(**kwargs):
         return view
 
     return decorator
+
+
+def no_cache_response(f):
+    """Add appropriate response headers to force no caching.
+
+    This decorator is used to prevent caching of the response in the browser. This is needed
+    in the deposit form as we initialize the form with the record metadata included in the html page
+    and we don't want the browser to cache this page so that the user always gets the latest version of the record.
+    """
+
+    @wraps(f)
+    def view(*args, **kwargs):
+        response = make_response(f(*args, **kwargs))
+
+        response.cache_control.no_cache = True
+        response.cache_control.no_store = True
+        response.cache_control.must_revalidate = True
+
+        return response
+
+    return view

invenio_app_rdm/records_ui/views/deposits.py

@@ -37,6 +37,7 @@
 
 from ..utils import set_default_value
 from .decorators import (
+    no_cache_response,
     pass_draft,
     pass_draft_community,
     pass_draft_files,
@@ -424,6 +425,7 @@ def new_record():
 # Views
 #
 @login_required
+@no_cache_response
 @pass_draft_community
 def deposit_create(community=None):
     """Create a new deposit."""
@@ -475,6 +477,7 @@ def deposit_create(community=None):
 @secret_link_or_login_required()
 @pass_draft(expand=True)
 @pass_draft_files
+@no_cache_response
 def deposit_edit(pid_value, draft=None, draft_files=None, files_locked=True):
     """Edit an existing deposit."""
     # don't show draft's deposit form if the user can't edit it