datacite: add year sanity restrictions

Example of entities with bogus years:

https://fatcat.wiki/release/search?q=doi_registrar%3Adatacite+year%3A%3E2100

We can do a clean-up task, but first need to prevent creation of new bad
metadata.

1 files changed, 7 insertions, 0 deletions

diff --git a/python/fatcat_tools/importers/datacite.py b/python/fatcat_tools/importers/datacite.py
index 4e382348..db4709c2 100644
--- a/python/fatcat_tools/importers/datacite.py
+++ b/python/fatcat_tools/importers/datacite.py
@@ -222,6 +222,7 @@ class DataciteImporter(EntityImporter):
         self.read_issn_map_file(issn_map_file)
         self.debug = debug
         self.insert_log_file = insert_log_file
+        self.this_year = datetime.datetime.now().year
 
         print('datacite with debug={}'.format(self.debug), file=sys.stderr)
 
@@ -311,6 +312,12 @@ class DataciteImporter(EntityImporter):
         release_date, release_month, release_year = parse_datacite_dates(
             attributes.get('dates', []))
 
+        # block bogus far-future years/dates
+        if release_year is not None and (release_year > (self.this_year + 5) or release_year < 1000):
+            release_date = None
+            release_month = None
+            release_year = None
+
         # Some records do not use the "dates" field (e.g. micropub), but:
         # "attributes.published" or "attributes.publicationYear"
         if not any((release_date, release_month, release_year)):