metadata tab not showing anything if files are missing #534

docs/changelog.rst

@@ -11,6 +11,8 @@ paperless-ng 1.1.2
 * Always show top left corner of thumbnails, even for extra wide documents.
 
 * Added a management command for executing the sanity checker directly. See :ref:`utilities-sanity-checker`.
+  
+* Fixed an issue with the metadata tab not reporting anything in case of missing files.
 
 paperless-ng 1.1.1
 ##################

src/documents/tests/test_api.py

@@ -577,8 +577,11 @@ class TestDocumentApi(DirectoriesMixin, APITestCase):
     def test_get_metadata(self):
         doc = Document.objects.create(title="test", filename="file.pdf", mime_type="image/png", archive_checksum="A", archive_filename="archive.pdf")
 
-        shutil.copy(os.path.join(os.path.dirname(__file__), "samples", "documents", "thumbnails", "0000001.png"), doc.source_path)
+        source_file = os.path.join(os.path.dirname(__file__), "samples", "documents", "thumbnails", "0000001.png")
-        shutil.copy(os.path.join(os.path.dirname(__file__), "samples", "simple.pdf"), doc.archive_path)
+        archive_file = os.path.join(os.path.dirname(__file__), "samples", "simple.pdf")
+
+        shutil.copy(source_file, doc.source_path)
+        shutil.copy(archive_file, doc.archive_path)
 
         response = self.client.get(f"/api/documents/{doc.pk}/metadata/")
         self.assertEqual(response.status_code, 200)
@@ -591,6 +594,8 @@ class TestDocumentApi(DirectoriesMixin, APITestCase):
         self.assertGreater(len(meta['archive_metadata']), 0)
         self.assertEqual(meta['media_filename'], "file.pdf")
         self.assertEqual(meta['archive_media_filename'], "archive.pdf")
+        self.assertEqual(meta['original_size'], os.stat(source_file).st_size)
+        self.assertEqual(meta['archive_size'], os.stat(archive_file).st_size)
 
     def test_get_metadata_invalid_doc(self):
         response = self.client.get(f"/api/documents/34576/metadata/")
@@ -612,6 +617,21 @@ class TestDocumentApi(DirectoriesMixin, APITestCase):
         self.assertIsNone(meta['archive_metadata'])
         self.assertIsNone(meta['archive_media_filename'])
 
+    def test_get_metadata_missing_files(self):
+        doc = Document.objects.create(title="test", filename="file.pdf", mime_type="application/pdf", archive_filename="file.pdf", archive_checksum="B", checksum="A")
+
+        response = self.client.get(f"/api/documents/{doc.pk}/metadata/")
+        self.assertEqual(response.status_code, 200)
+
+        meta = response.data
+
+        self.assertTrue(meta['has_archive_version'])
+        self.assertIsNone(meta['original_metadata'])
+        self.assertIsNone(meta['original_size'])
+        self.assertIsNone(meta['archive_metadata'])
+        self.assertIsNone(meta['archive_size'])
+
+
     def test_get_empty_suggestions(self):
         doc = Document.objects.create(title="test", mime_type="application/pdf")
 

src/documents/views.py

@@ -225,6 +225,12 @@ class DocumentViewSet(RetrieveModelMixin,
         else:
             return []
 
+    def get_filesize(self, filename):
+        if os.path.isfile(filename):
+            return os.stat(filename).st_size
+        else:
+            return None
+
     @action(methods=['get'], detail=True)
     def metadata(self, request, pk=None):
         try:
@@ -234,7 +240,7 @@ class DocumentViewSet(RetrieveModelMixin,
 
         meta = {
             "original_checksum": doc.checksum,
-            "original_size": os.stat(doc.source_path).st_size,
+            "original_size": self.get_filesize(doc.source_path),
             "original_mime_type": doc.mime_type,
             "media_filename": doc.filename,
             "has_archive_version": doc.has_archive_version,
@@ -245,7 +251,7 @@ class DocumentViewSet(RetrieveModelMixin,
         }
 
         if doc.has_archive_version:
-            meta['archive_size'] = os.stat(doc.archive_path).st_size,
+            meta['archive_size'] = self.get_filesize(doc.archive_path)
             meta['archive_metadata'] = self.get_metadata(
                 doc.archive_path, "application/pdf")
         else: