update last_modified

seatable_thumbnail/permissions.py

@@ -145,7 +145,7 @@ def has_collection_table_permission(self):
 
         token = self.collection_table['token']
         obj = self.db_session.query(
-                DTableCollectionTables).filter_by(token=token).first()
+            DTableCollectionTables).filter_by(token=token).first()
         if not obj:
             return False
 

seatable_thumbnail/serializers.py

@@ -10,7 +10,7 @@
 from seatable_thumbnail.constants import TEXT_CONTENT_TYPE, FILE_EXT_TYPE_MAP, \
     IMAGE, PSD, VIDEO, XMIND
 from seatable_thumbnail.models import Workspaces, DjangoSession, DTableSystemPlugins
-from seatable_thumbnail.utils import get_file_id
+from seatable_thumbnail.utils import get_file_id, get_file_obj
 
 
 class ThumbnailSerializer(object):
@@ -33,8 +33,8 @@ def gen_thumbnail_info(self):
         self.thumbnail_info = thumbnail_info
 
     def parse_django_session(self, session_data):
-        # only for django 1.11.x
-        encoded_data = base64.b64decode(session_data)
+        # django/contrib/sessions/backends/base.py
+        encoded_data = base64.b64decode(session_data.encode('ascii'))
         hash_key, serialized = encoded_data.split(b':', 1)
         return json.loads(serialized.decode('latin-1'))
 
@@ -64,7 +64,7 @@ def get_enable_file_type(self):
         self.enable_file_type = enable_file_type
 
     def params_check(self):
-        size_str = self.request.query_dict['size'][0]
+        size_str = self.request.query_dict.get('size', ['256'])[0]
         size = int(size_str)
 
         file_path = '/' + self.request.url.split('/', 3)[-1]
@@ -107,12 +107,16 @@ def resource_check(self):
             Workspaces).filter_by(id=workspace_id).first()
         repo_id = workspace.repo_id
         workspace_owner = workspace.owner
-        file_id = get_file_id(repo_id, file_path)
+        file_obj = get_file_obj(repo_id, file_path)
+        file_id = file_obj.obj_id
 
         thumbnail_dir = os.path.join(settings.THUMBNAIL_DIR, str(size))
         thumbnail_path = os.path.join(thumbnail_dir, file_id)
         os.makedirs(thumbnail_dir, exist_ok=True)
-        exist, last_modified = self.exist_check(thumbnail_path)
+
+        last_modified_time = file_obj.mtime
+        last_modified = formatdate(int(last_modified_time), usegmt=True)
+
         etag = '"' + file_id + '"'
 
         self.resource = {
@@ -121,19 +125,10 @@ def resource_check(self):
             'workspace_owner': workspace_owner,
             'thumbnail_dir': thumbnail_dir,
             'thumbnail_path': thumbnail_path,
-            'exist': exist,
             'last_modified': last_modified,
             'etag': etag,
         }
 
-    def exist_check(self, thumbnail_path):
-        if os.path.exists(thumbnail_path):
-            last_modified_time = os.path.getmtime(thumbnail_path)
-            last_modified = formatdate(int(last_modified_time), usegmt=True)
-            return True, last_modified
-        else:
-            return False, ''
-
 
 class PluginSerializer(object):
     def __init__(self, db_session, request):
@@ -190,4 +185,4 @@ def resource_check(self):
             'file_info': file_info,
             'last_modified': last_modified,
             'etag': etag,
-        }
+        }

seatable_thumbnail/thumbnail.py

@@ -1,12 +1,10 @@
 import os
-import time
 import urllib.request
 import urllib.parse
 import zipfile
 import tempfile
 from io import BytesIO
 from PIL import Image
-from email.utils import formatdate
 
 from seaserv import get_repo, get_file_size
 import seatable_thumbnail.settings as settings
@@ -22,7 +20,7 @@ def __init__(self, **info):
         self.get()
 
     def get(self):
-        if self.exist:
+        if os.path.exists(self.thumbnail_path):
             with open(self.thumbnail_path, 'rb') as f:
                 self.body = f.read()
         else:
@@ -101,8 +99,6 @@ def create_image_thumbnail(self, image):
         image = self.get_rotated_image(image)
         image.thumbnail((self.size, self.size), Image.ANTIALIAS)
         image.save(self.thumbnail_path, THUMBNAIL_EXTENSION)
-        last_modified_time = time.time()
-        self.last_modified = formatdate(int(last_modified_time), usegmt=True)
 
         # PIL to bytes
         image_bytes = BytesIO()

seatable_thumbnail/utils.py

@@ -13,6 +13,14 @@ def get_file_id(repo_id, file_path):
     return file_id
 
 
+def get_file_obj(repo_id, file_path):
+    file_obj = seafile_api.get_dirent_by_path(repo_id, file_path)
+    if not file_obj:
+        raise ValueError(404, 'file_obj not found.')
+
+    return file_obj
+
+
 def get_inner_path(repo_id, file_id, file_name):
     token = seafile_api.get_fileserver_access_token(
         repo_id, file_id, 'view', '', use_onetime=True)